Relay

Abstract

The invention discloses a relay, and belongs to the technical field of relays. The relay comprises a relay body, the relay body comprises an installation cover, a static contact and an auxiliary contact, the static contact and the auxiliary contact are arranged on the installation cover and distributed at an interval, at least part of the static contact is located in the installation cover, the auxiliary contact is located outside the installation cover, part of the outer surface of the installation cover is covered with a conductive layer, and the static contact is electrically connected with the auxiliary contact through the conductive layer; and at least part of the conductive layer is connected between the static contact and the mounting cover and between the auxiliary contact and the mounting cover. Through the arrangement of the conductive layer, the reliability and the stability of the electric connection between the static contact and the movable contact are improved, the overall performance of the relay is optimized, the service life is prolonged, additional components do not need to be added, the number of parts is reduced, and the manufacturing cost and the assembly complexity are reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of relays, and in particular, relates to a relay. Background Art

[0002] As an important switching element in electrical control systems, relays are widely used in power, electronics, communications, and automation control. Traditional relays have many shortcomings in contact design and conductive paths, such as complex connections between contacts, poor reliability, low conductive efficiency, and easy poor contact, which affect the overall performance and service life of the relay. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a relay, which improves the reliability and stability of the electrical connection between the static contact and the moving contact through the provision of the above-mentioned conductive layer, optimizes the overall performance of the relay, and prolongs the service life of the relay.

[0004] In a first aspect, the present application provides a relay, comprising:

[0005] A relay body, the relay body comprising a mounting cover, a stationary contact and an auxiliary contact arranged on the mounting cover and spaced apart from each other, wherein at least a portion of the stationary contact is located inside the mounting cover, and the auxiliary contact is located outside the mounting cover, a portion of the outer surface of the mounting cover is covered with a conductive layer, the stationary contact is electrically connected to the auxiliary contact through the conductive layer, and at least a portion of the conductive layer is connected between the stationary contact and the mounting cover and between the auxiliary contact and the mounting cover.

[0006] According to the relay of the present application, through the setting of the above-mentioned conductive layer, the assembly of the static contact and the auxiliary contact on the mounting cover and the electrical connection between the static contact and the auxiliary contact are realized, which significantly improves the reliability and stability of the electrical connection between the static contact and the moving contact, thereby optimizing the overall performance of the relay and thus extending the service life of the relay. At the same time, there is no need to add additional components, which simplifies the internal structure of the relay and reduces the number of parts, thereby reducing the manufacturing cost and assembly complexity.

[0007] According to one embodiment of the present application, the mounting cover includes a cover body and a boss protruding outward from the cover body, the conductive layer covers at least a portion of the wall surface of the boss, and at least a portion of the conductive layer is connected between the boss and the static contact and between the boss and the auxiliary contact.

[0008] According to an embodiment of the present application, the conductive layer covers a wall surface of the boss facing away from the cover body.

[0009] According to one embodiment of the present application, the boss includes a connected assembly section and an extension section, the assembly section is annular, arranged around the static contact, and clamped between the static contact and the cover body, and the extension section is connected between the assembly section and the auxiliary contact.

[0010] According to one embodiment of the present application, the extended section includes a first section and a second section that are connected, the first section is connected between the assembly section and the second section, the first section is bent relative to the second section, and the angle between the first section and the second section is an obtuse angle, and the second section extends from one end of the first section away from the first section to a middle area of ​​an edge of the cover body.

[0011] According to one embodiment of the present application, the height h1 of the boss satisfies: 0.2mm≤h1≤0.8mm.

[0012] According to one embodiment of the present application, the thickness h2 of the conductive layer satisfies: 5um≤h2≤20um.

[0013] According to one embodiment of the present application, the conductive layer includes a metal layer.

[0014] According to an embodiment of the present application, the conductive layer is covered on a portion of the outer surface of the mounting cover by electroplating, and the static contact and the auxiliary contact are connected to the conductive layer by brazing.

[0015] According to one embodiment of the present application, the relay body includes a first auxiliary leg for electrically connecting to a high-voltage detection circuit and a second auxiliary leg for electrically connecting to a low-voltage control circuit, and the first auxiliary leg and the second auxiliary leg are spaced apart and protrude in a direction away from the static contact.

[0016] According to one embodiment of the present application, the outer wall surface of the first auxiliary support foot facing away from the static contact is used to be electrically connected to the high-voltage detection circuit, the outer wall surface of the second auxiliary support foot facing away from the static contact is used to be electrically connected to the high-voltage detection circuit, and the outer wall surface of the first auxiliary support foot facing away from the static contact is flush with the outer wall surface of the second auxiliary support foot facing away from the static contact.

[0017] According to one embodiment of the present application, the relay further includes:

[0018] A bus, one end of which is electrically connected to the auxiliary contact, and the other end of which is electrically connected to the high-voltage detection circuit through the first auxiliary leg.

[0019] According to an embodiment of the present application, the busbar is provided with a first positioning hole, and the auxiliary contact is passed through the first positioning hole.

[0020] According to an embodiment of the present application, the first auxiliary support leg is provided with a second positioning hole, and the busbar is passed through the second positioning hole.

[0021] According to one embodiment of the present application, the relay body includes:

[0022] A housing, wherein the mounting cover and the auxiliary contact are both disposed in the housing, the static contact passes through the housing, and the housing has a third positioning hole for mounting the first auxiliary leg and a fourth positioning hole for mounting the second auxiliary leg;

[0023] A magnetic conductive component, the magnetic conductive component is arranged in the housing, connected to the side of the mounting cover away from the static contact, and includes a frame and a coil wound on the outer peripheral wall of the frame and connected to the second auxiliary leg, and the frame includes the first auxiliary leg and the second auxiliary leg;

[0024] A pushing component is arranged in the shell and is slidably installed on the magnetic conductive component between a first position and a second position. The pushing component is suitable for abutting against the static contact in the first position and is suitable for disconnecting from the static contact in the second position.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 It is one of the structural schematic diagrams of the mounting cover, the static contact and the auxiliary contact provided in the embodiment of the present application;

[0028] Figure 2 This is the second structural schematic diagram of the mounting cover, the static contact and the auxiliary contact provided in the embodiment of the present application;

[0029] Figure 3 yes Figure 2 A magnified view of the structure at center A;

[0030] Figure 4 is a schematic diagram of the structure of the installation cover provided in an embodiment of the present application;

[0031] Figure 5 It is a partial structural schematic diagram of a relay provided in an embodiment of the present application;

[0032] Figure 6 is a top view of a bus provided in an embodiment of the present application;

[0033] Figure 7 It is a schematic diagram of the structure of the skeleton provided in the embodiment of the present application;

[0034] Figure 8 is a schematic diagram of the structure of a relay provided in an embodiment of the present application;

[0035] Fig. 9 is a cross-sectional view of a relay provided in an embodiment of the present application;

[0036] Fig.10 is a bottom view of the lower shell provided in an embodiment of the present application;

[0037] Fig.11 is a schematic structural diagram of a first auxiliary support leg provided in an embodiment of the present application;

[0038] Fig.12 It is a schematic diagram of the structure of the second auxiliary support leg provided in an embodiment of the present application.

[0039] Reference numerals:

[0040] Relay 10;

[0041] Installation cover 11, cover body 111, boss 112, assembly section 1121, extension section 1122, first section 11221, second section 11222, conductive layer 12, static contact 13, auxiliary contact 14;

[0042] Busbar 15, first positioning hole 151;

[0043] Shell 16, upper shell 161, lower shell 162, third positioning hole 1621, fourth positioning hole 1622;

[0044] The magnetic conductive component 17, the first magnetic yoke 171, the second magnetic yoke 172, the frame 173, the first auxiliary leg 1731, the second positioning hole 17311, the second auxiliary leg 1732, the frame body 1733, the coil 174, the sleeve 175, and the static iron core 176;

[0045] Pushing assembly 18, push rod 181, return spring 182, buffer spring 183, moving contact plate 184, moving iron core 185;

[0046] Seal 19. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0048] The present application discloses a relay 10 .

[0049] Reference below Figure 1-Figure 10 A relay 10 according to an embodiment of the present application is described.

[0050] In some embodiments, the relay 10 includes: a relay body.

[0051] like Figure 1-Figure 2 As shown, the relay body includes a mounting cover 11, a static contact 13 and an auxiliary contact 14 which are arranged on the mounting cover 11 and are spaced apart from each other, at least a portion of the static contact 13 is located inside the mounting cover 11, and the auxiliary contact 14 is located outside the mounting cover 11, a portion of the outer surface of the mounting cover 11 is covered with a conductive layer 12, the static contact 13 is electrically connected to the auxiliary contact 14 through the conductive layer 12, and at least a portion of the conductive layer 12 is connected between the static contact 13 and the mounting cover 11 and between the auxiliary contact 14 and the mounting cover 11.

[0052] The mounting cover 11 may be a hollow structure with one side open, wherein the material of the mounting cover 11 may include but is not limited to ceramic, metal, plastic, or a combination of two or more of the foregoing, which is not limited here.

[0053] For example, in some embodiments, since ceramics have good strength, chemical stability, and thermal stability, and are also poor conductors of electricity, the mounting cover 11 is made of ceramic material, which improves the insulation performance of the mounting cover 11 to reduce safety hazards.

[0054] The stationary contacts 13 and the auxiliary contacts 14 are provided in one pair or multiple pairs, and the stationary contacts 13 and the auxiliary contacts 14 are connected one by one, wherein multiple pairs means two pairs or more than two pairs. For example, in some embodiments, Figure 1 As shown, the stationary contacts 13 and the auxiliary contacts 14 are each provided in a pair. In other words, the two stationary contacts 13 and the two auxiliary contacts 14 are connected in a one-to-one correspondence.

[0055] The two auxiliary contacts 14 may be located between the two stationary contacts 13 , and the two stationary contacts 13 may be located between the two auxiliary contacts 14 .

[0056] For example, a center line connecting the two auxiliary contacts 14 may intersect a center line connecting the two stationary contacts 13 perpendicularly.

[0057] The material of the conductive layer 12 may include, but is not limited to, metal materials, carbon-based materials, nanocomposite materials, or a combination of two or more of the foregoing, which is not limited here.

[0058] For example, in some embodiments, the conductive layer 12 is made of metal material because the metal material has excellent conductivity and low cost.

[0059] In this embodiment, if Figure 1 and Fig. 9 As shown, two mounting holes are provided on the mounting cover 11 to respectively mount two static contacts 13, a portion of the static contact 13 is located in the mounting hole, a portion protrudes downward from the mounting hole to enter the mounting cover 11, and the other portion protrudes upward from the mounting hole and is connected to the outer periphery of the mounting hole through a conductive layer 12, the auxiliary contact 14 is connected to the upper surface of the mounting cover 11 through the conductive layer 12, and the auxiliary contact 14 is electrically connected to the static contact 13 through the conductive layer 12.

[0060] The processing method of the conductive layer 12 may include but is not limited to electroplating, conductive adhesive adhesion, chemical vapor deposition, physical vapor deposition, thermal spraying, screen printing or plasma spraying, etc., which are not limited here.

[0061] For example, in some embodiments, the conductive layer 12 is processed by electroplating.

[0062] The connection method between the static contact 13 and the conductive layer 12 may include, but is not limited to, welding, crimping, threaded connection, bonding or riveting, etc., which is not limited here.

[0063] For example, in some embodiments, the connection between the static contact 13 and the conductive layer 12 is welding.

[0064] The connection method between the auxiliary contact 14 and the conductive layer 12 may include, but is not limited to, welding, crimping, threaded connection, bonding or riveting, etc., which is not limited here.

[0065] For example, in some embodiments, the auxiliary contact 14 and the conductive layer 12 are connected by welding.

[0066] In the related art, some relays introduce conductive brackets and other components to assist in the connection in order to achieve electrical connection between the static contact and the auxiliary contact. The conductive bracket is fixed on the mounting cover by welding or other means, and the conductive bracket and the static contact are overlapped and connected by conductive springs. The conductive bracket needs to extend outward to fix the connection terminal and the static contact by welding or other means. However, in actual applications, the conductive bracket and the mounting cover of the above relay are prone to breakage or loosening due to the uncertainty of mechanical connection under long-term use. The contact between the conductive spring and the main contact may also cause poor contact due to wear or deformation, which seriously affects the reliability and durability of the relay. In addition, the introduction of components such as conductive brackets also increases the number of parts and assembly steps, increasing the manufacturing cost of the relay.

[0067] It can be understood that the relay 10 of the present application directly covers a portion of the outer surface of the mounting cover 11 with a conductive layer 12, and directly connects the static contact 13 and the auxiliary contact 14 using the conductive layer 12, without the need for additional conductive brackets and other structures. This design simplifies the internal structure of the relay 10, reduces the number of components, and thus reduces the manufacturing cost and assembly complexity; at the same time, the conductive layer 12 directly covers the mounting cover 11, and forms good contact with the static contact 13 and the auxiliary contact 14, with a short conductive path and a large contact area, thereby improving the conductive efficiency and stability; in addition, the uniformity and consistency of the conductive layer 12 are also easier to control, which helps to reduce resistance and heat accumulation; and the conductive layer 12 has good adhesion and corrosion resistance, and can maintain stable conductive performance for a long time. At the same time, due to the reduction in the number of components and the number of connection points, the risk of failure caused by defects in mechanical connection is also reduced, thereby significantly improving the reliability and stability of the electrical connection between the static contact 13 and the moving contact, thereby optimizing the overall performance of the relay 10 and extending the service life of the relay 10.

[0068] It should be noted that in actual design, the thickness and coverage of the conductive layer 12 can be adjusted as needed to adapt to different application scenarios and performance requirements.

[0069] The relay 10 provided in the embodiment of the present application realizes the assembly of the static contact 13 and the auxiliary contact 14 on the mounting cover 11 and the electrical connection between the static contact 13 and the auxiliary contact 14 through the setting of the above-mentioned conductive layer 12, which significantly improves the reliability and stability of the electrical connection between the static contact 13 and the moving contact, thereby optimizing the overall performance of the relay 10 and further extending the service life of the relay 10. At the same time, there is no need to add additional components, which simplifies the internal structure of the relay 10 and reduces the number of parts, thereby reducing the manufacturing cost and assembly complexity.

[0070] In some embodiments, Figure 1-Figure 4 As shown, the mounting cover 11 includes a cover body 111 and a boss 112 protruding outward from the cover body 111 , the conductive layer 12 covers at least a portion of the wall surface of the boss 112 , and at least a portion of the conductive layer 12 is connected between the boss 112 and the static contact 13 and between the boss 112 and the auxiliary contact 14 .

[0071] Exemplarily, the boss 112 and the cover body 111 are integrally formed, so that the problem of mechanical connection being easily broken and falling off after long-term use can be solved.

[0072] like Figure 1-Figure 4 As shown, the boss 112 may protrude from the upper surface of the cover body 111 , and the outer wall surface of the boss 112 may be designed to be a slope to reduce the sharpness of the edge and relieve stress concentration.

[0073] It can be understood that the design of the boss 112 provides a stable supporting platform for the conductive layer 12, so that the conductive layer 12 can be firmly attached to the mounting cover 11, and the conductive layer 12 directly connects the boss 112 with the static contact 13 and the auxiliary contact 14, thereby improving the stability and reliability of electrical signal transmission and reducing electrical failures caused by poor contact or looseness; at the same time, the formation of the boss 112 also indicates and delimits the specific coverage area of ​​the conductive layer 12, thereby reducing the processing difficulty of the conductive layer 12; and the combination of the boss 112 and the conductive layer 12 makes the conductive path more direct and efficient. Compared with the traditional method of separately setting a conductive component on the outside of the cover body 111, this design reduces unnecessary resistance and inductance and improves the conductive performance.

[0074] The relay 10 provided in the embodiment of the present application, through the setting of the above-mentioned boss 112, enables the conductive layer 12 to be firmly attached to the mounting cover 11, and the conductive layer 12 directly connects the boss 112 with the static contact 13 and the auxiliary contact 14, thereby improving the stability and reliability of electrical signal transmission and reducing electrical failures caused by poor contact or looseness. At the same time, the boss 112 also indicates the specific coverage area of ​​the conductive layer 12, reducing the processing difficulty of the conductive layer 12, and the combination of the boss 112 and the conductive layer 12 makes the conductive path more direct and efficient. Compared with the traditional method of separately setting a conductive component outside the cover body 111, this design reduces unnecessary resistance and inductance and improves the conductive performance.

[0075] In some embodiments, Figure 2-Figure 3 As shown, the conductive layer 12 covers the wall surface of the boss 112 away from the cover body 111 .

[0076] In this embodiment, if Figure 2-Figure 3 As shown, the lower wall of the boss 112 is connected to the cover body 111, the upper wall of the boss 112 is covered with a conductive layer 12, the static contact 13 is fixedly connected to the upper wall of the boss 112 through the conductive layer 12, and the auxiliary contact 14 is fixedly connected to the upper wall of the boss 112 through the conductive layer 12.

[0077] In other embodiments, the lower wall surface of the boss 112 is connected to the cover body 111, the side wall surface of the boss 112 is covered with a conductive layer 12, the static contact 13 is fixedly connected to the side wall surface of the boss 112 through the conductive layer 12, and the auxiliary contact 14 is fixedly connected to the side wall surface of the boss 112 through the conductive layer 12.

[0078] In some other embodiments, the lower wall surface of the boss 112 is connected to the cover body 111, the upper wall surface and the side wall surface of the boss 112 are covered with a conductive layer 12, the static contact 13 is fixedly connected to the upper wall surface and the side wall surface of the boss 112 through the conductive layer 12, and the auxiliary contact 14 is fixedly connected to the upper wall surface of the boss 112 through the conductive layer 12.

[0079] The relay 10 provided in the embodiment of the present application is designed so that the conductive layer 12 covers the wall surface of the boss 112 away from the cover body 111. Compared with the solution in which the conductive layer 12 covers the side wall surface of the boss 112, the relay 10 is not restricted by the shape of the boss 112, and the processing difficulty of the conductive layer 12 is reduced, thereby accelerating the production efficiency of the relay 10, which is conducive to promotion and mass production.

[0080] In some embodiments, Figure 4 As shown, the boss 112 includes a connected assembly section 1121 and an extension section 1122. The assembly section 1121 is annular and is arranged around the static contact 13. The assembly section 1121 is clamped between the static contact 13 and the cover body 111, and the extension section 1122 is connected between the assembly section 1121 and the auxiliary contact 14.

[0081] For example, in some embodiments, Figure 4 As shown, the assembly section 1121 is in a circular ring shape to match the shape profile of the static contact 13 .

[0082] like Figure 4 As shown, the extension section 1122 can be connected to the outer peripheral wall of the assembly section 1121 , and the width of the extension section 1122 and the width of the assembly section 1121 can be equal to maintain the consistency of the boss 112 .

[0083] Exemplarily, the outer diameter of the conductive layer 12 covering the upper wall surface of the assembly section 1121 may be greater than the maximum outer diameter of the static contact 13 to accommodate manufacturing tolerances that may occur during the processing.

[0084] It can be understood that, based on the fact that the assembly segment 1121 is arranged around the static contact 13 and the assembly segment 1121 is clamped between the static contact 13 and the cover body 111, the assembly segment 1121 can support the static contact 13, so that the static contact 13 can be firmly installed on the mounting cover 11, thereby improving the stability of the entire electrical connection; at the same time, the contact area between the conductive layer 12 and the static contact 13 is increased, thereby improving the conductive performance; in addition, the extension segment 1122 connects the assembly segment 1121 and the auxiliary contact 14, providing an additional path for the electrical connection. This design increases the flexibility of the electrical connection, so that the relay 10 can adapt to different circuit layouts and connection requirements. Specifically, the shape and length of the extension segment 1122 can be adjusted as needed, and the assembly segment 1121 can also connect multiple extension segments 1122 to meet specific installation and connection requirements.

[0085] The relay 10 provided in the embodiment of the present application, through the arrangement of the above-mentioned assembly section 1121 and the extension section 1122, combined with the structural design that the assembly section 1121 is arranged around the static contact 13 and clamped between the static contact 13 and the cover body 111, enables the static contact 13 to be firmly mounted on the mounting cover 11, thereby improving the stability of the entire electrical connection, while increasing the contact area between the conductive layer 12 and the static contact 13, improving the conductive performance, and the shape, length and number of the extension section 1122 can be adjusted according to actual needs, so that the relay 10 can adapt to different circuit layouts and connection requirements, thereby expanding the scope of application of the relay 10.

[0086] In some embodiments, Figure 4 As shown, the extended section 1122 includes a first section 11221 and a second section 11222 that are connected, the first section 11221 is connected between the assembly section 1121 and the second section 11222, the first section 11221 is bent relative to the second section 11222, and the angle between the first section 11221 and the second section 11222 is an obtuse angle, and the second section 11222 extends from one end of the first section 11221 to the middle area of ​​an edge of the cover body 111.

[0087] For example, in some embodiments, the angle between the first section 11221 and the second section 11222 is 120°.

[0088] For example, in some other embodiments, the angle between the first section 11221 and the second section 11222 is 155°.

[0089] For example, in some other embodiments, the angle between the first section 11221 and the second section 11222 is 98.4°.

[0090] In this embodiment, if Figure 4 As shown, based on the one-to-one connection of the two static contacts 13 and the two auxiliary contacts 14, the two auxiliary contacts 14 are symmetrically arranged relative to the center line of the two static contacts 13. Specifically, one of the auxiliary contacts 14 is arranged in the middle area of ​​the first edge of the cover body 111, and the other auxiliary contact 14 is arranged in the middle area of ​​the second edge of the cover body 111, wherein the first edge and the second edge are two opposite edges.

[0091] In other embodiments, the static contacts 13 and the auxiliary contacts 14 can be arranged in more than two pairs in a one-to-one correspondence, and the two auxiliary contacts 14 corresponding to two adjacent static contacts 13 can be staggered to reduce electrical interference between the two auxiliary contacts 14 corresponding to two adjacent static contacts 13.

[0092] The relay 10 provided in the embodiment of the present application adopts the structural design of forming an obtuse angle between the first section 11221 and the second section 11222. The bent design not only provides a certain space for the thermal expansion of the conductive layer 12 and reduces thermal stress, but also increases the physical distance between the static contact 13 and the auxiliary contact 14, reducing the risk of accidental touch or short circuit. The design of extending the second section 11222 to the middle area of ​​one edge of the cover body 111 facilitates electrical connection and wiring, allowing electrical components to be more easily approached and connected to the auxiliary contact 14, while also providing more flexibility and space for internal wiring.

[0093] In some embodiments, Figure 3 As shown, the height h1 of the boss 112 satisfies: 0.2 mm ≤ h1 ≤ 0.8 mm.

[0094] Specifically, the height h1 of the boss 112 may be 0.2 mm, 0.35 mm, 0.5 mm, 0.632 mm, 0.8 mm or other values ​​between 0.2 mm and 0.8 mm, which is not limited here.

[0095] It is understandable that within this height range, the design of the boss 112 minimizes the size of the relay 10 in the vertical direction, which is particularly important for application scenarios that require space saving, such as high-density circuit board layout, miniaturized electronic equipment, etc. By reducing the height of the relay 10, more components can be installed in a limited space, improving the compactness and integration of the overall design. Limiting the height of the boss 112 helps to optimize the space utilization inside and outside the relay 10. Specifically, the moderate height of the boss 112 can reduce unnecessary space waste, making the layout of other internal components more reasonable. The reduction in the overall height of the relay 10 enables it to reduce the shielding and interference of other components when it is installed on a circuit board or other carrier, thereby improving the flexibility of the overall layout. In addition, an appropriate height range helps to balance material costs, manufacturing costs and performance requirements. A boss 112 height that is too high will increase material costs and manufacturing costs, while a boss 112 height that is too low may not meet electrical performance requirements. Within this height range, the cost requirements and performance requirements of the relay 10 can be taken into account.

[0096] The relay 10 provided in the embodiment of the present application minimizes the size of the relay 10 in the vertical direction by limiting the range of the height h1 of the boss 112, thereby improving the compactness and integration of the overall design, and helping to optimize the space utilization inside and outside the relay 10. At the same time, an appropriate height range also helps to balance material costs, manufacturing costs and performance requirements, thereby increasing the practicality and economy of the relay 10.

[0097] In some embodiments, Figure 3 As shown, the thickness h2 of the conductive layer 12 satisfies: 5um≤h2≤20um.

[0098] Specifically, the thickness h2 of the conductive layer 12 may be 5 um, 7.5 um, 10 um, 16.784 um, 20 um or other values ​​between 5 um and 20 um, which is not limited here.

[0099] It is understandable that the thickness of the conductive layer 12 directly affects the contact resistance and contact stability between it and the static contact 13 and the auxiliary contact 14. A too thin conductive layer 12 may increase the contact resistance, resulting in signal attenuation or heating problems; while an overly thick conductive layer 12 may increase the material cost and is not easy to accurately control the thickness. Within the above thickness range, the conductive layer 12 can form a sufficiently stable electrical connection to maintain smooth transmission of signals or currents. The appropriate thickness of the conductive layer 12 helps to optimize the conductive performance. Within this range, the conductive layer 12 can provide sufficient conductive area, reduce resistance and inductance, and improve the speed and quality of signal transmission, which is particularly important for application scenarios that require high-speed signal transmission or high-sensitivity electrical connections. Limiting the thickness of the conductive layer 12 within a reasonable range helps save material costs. An overly thick conductive layer 12 will increase the demand for precious metals or highly conductive materials, thereby increasing manufacturing costs. Within this thickness range, the amount of material used can be minimized while ensuring conductive performance. In addition, different application scenarios have different requirements for the thickness of the conductive layer 12. By limiting the thickness range of the conductive layer 12, a relay 10 suitable for different application scenarios can be produced. For example, in applications requiring high conductivity, a thicker conductive layer 12 can be selected; and in applications with higher space requirements, a thinner conductive layer 12 can be selected.

[0100] The relay 10 provided in the embodiment of the present application, through the above-mentioned range limitation of the thickness h2 of the conductive layer 12, the conductive layer 12 can form a sufficiently stable electrical connection, which helps to optimize the conductive performance and improve the speed and quality of signal transmission. At the same time, without affecting the conductive performance, the amount of material used is minimized. In addition, by adjusting the thickness of the conductive layer 12, relays 10 that are suitable for different application scenarios can be produced, thereby increasing the use width of the relay 10.

[0101] In some embodiments, conductive layer 12 includes a metal layer.

[0102] The metal layer may include but is not limited to a nickel layer, a tin layer, a copper layer, or the like, which is not limited here.

[0103] For example, in some embodiments, the conductive layer 12 is a nickel layer.

[0104] The relay 10 provided in the embodiment of the present application is designed with a metal material for the above-mentioned conductive layer 12. Since the metal material has low resistivity and high conductivity, the relay 10 can maintain a stable electrical connection during operation, reduce signal attenuation and energy loss, and the metal material has obvious cost advantages and simpler processing procedures compared to other materials (such as the above-mentioned carbon-based materials and nano-composite materials), taking into account both performance requirements and cost control requirements.

[0105] In some embodiments, the conductive layer 12 is covered on a portion of the outer surface of the mounting cover 11 by electroplating, and the static contact 13 and the auxiliary contact 14 are connected to the conductive layer 12 by soldering.

[0106] In actual implementation, the processing of the conductive layer 12 can be achieved through the following steps: fix the mounting cover 11 in the electroplating tank, heat the electroplating solution in the electroplating tank to an appropriate temperature (usually between room temperature and 60°C), immerse the mounting cover 11 in the electroplating solution, turn on the power supply for electroplating, and after the electroplating is completed, take the mounting cover 11 out of the electroplating tank, wash it with water and dry it, and finally form the conductive layer 12. During the electroplating process, it is necessary to control parameters such as current density and electroplating time to accurately control the thickness and quality of the conductive layer 12.

[0107] The assembly process of the static contact 13 and the auxiliary contact 14 can be achieved through the following steps: Use a fixture or other positioning device to accurately place the static contact 13 and the auxiliary contact 14 at the designated position of the mounting cover 11 plated with the conductive layer 12, and fix them. Put the static contact 13, the auxiliary contact 14 and the mounting cover 11 plated with the conductive layer 12 into a brazing furnace, heat them to above the melting point of the brazing material, and after the brazing material melts, use the capillary action to fill it into the gap between the conductive layer 12 and the static contact 13 and the auxiliary contact 14 to form a firm connection. After the brazing is completed, let the mounting cover 11 cool naturally to room temperature.

[0108] The relay 10 provided in the embodiment of the present application covers the conductive layer 12 on part of the outer surface of the mounting cover 11 by electroplating, so that the plated conductive layer 12 has a high degree of uniformity and good adhesion, which helps to form a stable and reliable electrical connection and reduce the risk of poor contact and signal attenuation. The static contact 13 and the auxiliary contact 14 are connected to the conductive layer 12 by soldering, which can ensure that a firm and reliable connection is formed between the static contact 13 and the auxiliary contact 14 and the conductive layer 12. This connection method not only has good electrical conductivity, but also can withstand certain mechanical stress and vibration, so that the relay 10 maintains a stable electrical connection during long-term use. In addition, since electroplating and soldering are both mature processing technologies, by using these processes to manufacture the conductive layer 12 and the connection contacts, the manufacturing process of the relay 10 can be simplified, the production efficiency can be improved, and the manufacturing cost can be reduced.

[0109] In some embodiments, Figure 5 and Figure 7 As shown, the relay body includes a first auxiliary leg 1731 for electrically connecting to a high-voltage detection circuit and a second auxiliary leg 1732 for electrically connecting to a low-voltage control circuit. The first auxiliary leg 1731 and the second auxiliary leg 1732 are spaced apart and protrude in a direction away from the static contact 13.

[0110] In actual implementation, Figure 5 and Figure 7 As shown, the first auxiliary leg 1731 is connected to an external high-voltage detection circuit. When a short circuit or end of life occurs in the circuit where the static contact 13 is located, the monitoring circuit can effectively and synchronously monitor the status of the static contact 13 to confirm whether the relay 10 is working normally. The high-voltage detection circuit can also detect the contact resistance between the static contact 13 and the corresponding moving contact to confirm the life status of the relay 10; the second auxiliary leg 1732 is connected to an external low-voltage control circuit. When the load circuit monitoring collects a short-circuit current, the low-voltage control circuit can quickly make a strategic disconnection in a short time to cut off the short-circuit current between the static contact 13 and the corresponding moving contact.

[0111] It is understandable that short-circuit current can usually cause the relay 10 to explode within 10ms, and a set of monitoring circuits can be directly connected in parallel to the static contact 13 to achieve millisecond response and disconnection of the short-circuit current. Based on the first auxiliary leg 1731 and the second auxiliary leg 1732 being spaced apart and protruding in the direction away from the static contact 13, in other words, the first auxiliary leg 1731 and the second auxiliary leg 1732 protrude at the bottom of the housing 16 of the relay 10, so that the circuit board equipped with the high-voltage detection circuit and the low-voltage control circuit can be placed in the bottom space of the relay 10, and the protruding first auxiliary leg 1731 and the second auxiliary leg 1732 can be directly connected to the circuit board equipped with the high-voltage detection circuit and the low-voltage control circuit, thereby improving the space utilization rate of the connection between the relay 10 and the external circuit.

[0112] The relay 10 provided in the embodiment of the present application realizes the electrical connection between the relay 10 and the external high-voltage detection circuit and the low-voltage control circuit through the setting of the above-mentioned first auxiliary support leg 1731 and the second auxiliary support leg 1732. When the load circuit monitoring collects a short-circuit current, a strategy can be quickly made in a short time to disconnect the low-voltage power supply to cut off the main load circuit, so as to reduce the probability of safety accidents. At the same time, the contact resistance of the load-end circuit can be monitored to confirm the life status of the relay 10, which is convenient for timely replacement of the relay 10. In addition, the high-voltage monitoring circuit and the low-voltage control circuit are designed to the bottom of the relay 10 to facilitate the connection and installation of the circuit board, thereby significantly improving the space utilization rate of the connection between the relay 10 and the external circuit.

[0113] In some embodiments, Figure 5 and Figure 7 As shown, the outer wall surface of the first auxiliary leg 1731 facing away from the static contact 13 is used to be electrically connected to the high-voltage detection circuit, the outer wall surface of the second auxiliary leg 1732 facing away from the static contact 13 is used to be electrically connected to the high-voltage detection circuit, and the outer wall surface of the first auxiliary leg 1731 facing away from the static contact 13 is flush with the outer wall surface of the second auxiliary leg 1732 facing away from the static contact 13.

[0114] In this embodiment, if Figure 5 and Figure 7 As shown, the outer wall surface of the first auxiliary support leg 1731 facing away from the static contact 13 can be a flat, smooth and continuous wall surface, the outer wall surface of the second auxiliary support leg 1732 facing away from the static contact 13 can be a flat, smooth and continuous wall surface, and the outer wall surface of the first auxiliary support leg 1731 facing away from the static contact 13 and the outer wall surface of the second auxiliary support leg 1732 facing away from the static contact 13 can be in the same plane.

[0115] It should be noted that the relay 10 of the present application is not limited in its layout during actual application. In other words, the relay 10 can be placed vertically, that is, the first auxiliary support leg 1731 and the second auxiliary support leg are located below the entire relay 10, or it can be placed horizontally, that is, the first auxiliary support leg 1731 and the second auxiliary support leg are located on the side of the entire relay 10, or it can be placed at an angle under the locking action of some connecting parts. There is no limitation here.

[0116] It is understandable that the high-voltage detection circuit and the low-voltage control circuit can be directly integrated into the bottom of the relay 10. Since the outer wall surface of the first auxiliary leg 1731 on the side away from the static contact 13 is flush with the outer wall surface of the second auxiliary leg 1732 on the side away from the static contact 13, the occupation of the circuit board installation space by the first auxiliary leg 1731 and the second auxiliary leg 1732 can be minimized. This compact design allows the circuit board to be placed closer to the bottom of the relay 10, which helps to achieve a more compact circuit layout and save space for the overall equipment. In addition, the flush design makes it easier to align the circuit board with the relay 10 during installation, reducing the number of repeated adjustments required due to inaccurate installation positions. This not only improves installation efficiency, but also reduces the risk of damage due to improper installation. At the same time, since the outer wall surface of the auxiliary leg is highly consistent with the corresponding connection point on the circuit board, it is easier to achieve precise docking during installation. This helps to ensure the stability and reliability of electrical connections and reduce failures caused by poor contact.

[0117] In some embodiments, Figure 5 and Fig. 9 As shown, the relay 10 further includes a bus bar 15 .

[0118] like Figure 5 As shown, one end of the busbar 15 is electrically connected to the auxiliary contact 14 , and the other end of the busbar 15 is used to be electrically connected to the high-voltage detection circuit through the first auxiliary leg 1731 .

[0119] The busbar 15 can be designed to be straight, bent, or branched, for example. Figure 5 and Fig. 9 As shown, in order to match the position of the auxiliary contact 14, the busbar 15 is designed to be bent.

[0120] The busbar 15 can be made of copper, aluminum or other materials.

[0121] For example, in some embodiments, the busbar 15 is made of copper.

[0122] For example, Figure 5 As shown, based on the fact that the relay 10 includes two stationary contacts 13 and two corresponding auxiliary contacts 14 , two busbars 15 are also provided, and the two busbars 15 are respectively connected to the two auxiliary contacts 14 .

[0123] It can be understood that the bus 15 serves as an electrical connection bridge to effectively connect the auxiliary contact 14 with the high-voltage detection circuit. This modular design makes the internal electrical connection of the relay 10 clearer and more orderly. The electrical connection from the high-voltage detection circuit to the auxiliary contact 14 no longer requires complicated wiring or additional connectors. This simplified wiring method not only saves space, but also reduces potential electrical failure points, thereby improving the reliability and stability of the circuit.

[0124] The relay 10 provided in the embodiment of the present application has a structural design in which the auxiliary contact 14 is electrically connected to the high-voltage detection circuit through the bus 15 and the first auxiliary leg 1731, so that the internal electrical connection of the relay 10 is clearer and more orderly, and the electrical connection from the high-voltage detection circuit to the auxiliary contact 14 no longer requires complicated wiring or additional connectors, which is beneficial to the overall spatial layout of the relay 10 while reducing potential electrical failure points, thereby improving the reliability and stability of the circuit.

[0125] In some embodiments, Figure 6 As shown, the bus bar 15 is provided with a first positioning hole 151 , and the auxiliary contact 14 is passed through the first positioning hole 151 .

[0126] The shape of the first positioning hole 151 may include but is not limited to a circle, an ellipse, a square, a triangle or other polygons, etc., which is not limited here.

[0127] For example, in some embodiments, Figure 6 As shown, the first positioning hole 151 is circular in shape.

[0128] The first positioning hole 151 may be a blind hole or a through hole, which is not limited here.

[0129] For example, in some embodiments, the first positioning hole 151 is a through hole, that is, the first positioning hole 151 passes through the bus bar 15 .

[0130] The shape of the auxiliary contact 14 may include but is not limited to a cylindrical shape, a square cylindrical shape or a spherical shape, etc., which is not limited here.

[0131] For example, in some embodiments, Figure 1-Figure 2 As shown, the auxiliary contact 14 is cylindrical in shape.

[0132] In this embodiment, the auxiliary contact 14 may pass through the first positioning hole 151 and be connected to the wall surface of the first positioning hole 151 .

[0133] In other embodiments, at least a portion of the auxiliary contact 14 may be installed in the first positioning hole 151 and connected to a wall surface of the first positioning hole 151 .

[0134] The connection method between the auxiliary contact 14 and the first positioning hole 151 may include but is not limited to welding, bonding or threaded connection.

[0135] For example, in some embodiments, the auxiliary contact 14 and the first positioning hole 151 are connected by welding.

[0136] The relay 10 provided in the embodiment of the present application defines the accurate installation position of the auxiliary contact 14 on the bus 15 through the setting of the above-mentioned first positioning hole 151, thereby reducing the risk of poor contact or short circuit caused by position deviation. At the same time, by penetrating the first positioning hole 151, a stable connection is formed between the bus 15 and the auxiliary contact 14, which can resist the influence of external factors such as vibration and impact, maintain the reliability and stability of the electrical connection, and the coordination between the first positioning hole 151 and the auxiliary contact 14 is taken into consideration during the design, which can greatly simplify the installation process. The operator only needs to align the auxiliary contact 14 with the first positioning hole 151 and insert it to complete the preliminary connection, thereby reducing the installation steps and the required time, thereby improving work efficiency.

[0137] In some embodiments, Figure 5 and Fig.11 As shown, the first auxiliary support leg 1731 is provided with a second positioning hole 17311 , and the bus bar 15 is passed through the second positioning hole 17311 .

[0138] The shape of the second positioning hole 17311 may include but is not limited to circle, oval, square, triangle or other polygons, etc., which is not limited here.

[0139] For example, in some embodiments, Fig.11 As shown, the second positioning hole 17311 is circular in shape.

[0140] The second positioning hole 17311 can be a blind hole or a through hole, which is not limited here.

[0141] For example, in some embodiments, the second positioning hole 17311 is a through hole, that is, the second positioning hole 17311 passes through the first auxiliary support leg 1731 .

[0142] The shape of the end of the bus 15 that matches the second positioning hole 17311 may include, but is not limited to, a cylindrical shape, a square column shape, or a spherical shape, etc., which is not limited here.

[0143] For example, in some embodiments, the shape of the end of the busbar 15 that matches the second positioning hole 17311 is cylindrical.

[0144] In this embodiment, the end of the busbar 15 can pass through the second positioning hole 17311 and be connected to the wall surface of the second positioning hole 17311 .

[0145] In other embodiments, at least a portion of the end of the busbar 15 may be installed in the second positioning hole 17311 and connected to the wall of the second positioning hole 17311 .

[0146] The connection method between the bus 15 and the second positioning hole 17311 may include but is not limited to welding, bonding or threaded connection.

[0147] For example, in some embodiments, the connection between the bus bar 15 and the second positioning hole 17311 is welding.

[0148] The relay 10 provided in the embodiment of the present application, through the setting of the above-mentioned second positioning hole 17311, defines the accurate installation position of the end of the bus 15 on the first auxiliary support leg 1731, thereby reducing the risk of poor contact or short circuit caused by position offset. At the same time, by penetrating the second positioning hole 17311, a stable connection is formed between the bus 15 and the first auxiliary support leg 1731, which can resist the influence of external factors such as vibration and impact, maintain the reliability and stability of the electrical connection, and the coordination between the second positioning hole 17311 and the bus 15 is taken into consideration during the design, which can greatly simplify the installation process. The operator only needs to align the end of the bus 15 with the second positioning hole and insert it to complete the preliminary connection, thereby reducing the installation steps and the required time, thereby improving work efficiency.

[0149] In some embodiments, Fig. 9 As shown, the relay body includes: a housing 16 , a magnetic conductive component 17 and a driving component 18 .

[0150] The mounting cover 11 and the auxiliary contact 14 are both arranged in the shell 16, the static contact 13 passes through the shell 16, and the shell 16 has a third positioning hole 1621 for installing the first auxiliary support leg 1731 and a fourth positioning hole 1622 for installing the second auxiliary support leg 1732; the magnetic conductive component 17 is arranged in the shell 16, connected to the side of the mounting cover 11 away from the static contact 13, and includes a skeleton 173 and a coil 174 wound on the outer peripheral wall of the skeleton 173 and connected to the second auxiliary support leg 1732, the skeleton 173 includes a first auxiliary support leg 1731 and a second auxiliary support leg 1732; the pushing component 18 is arranged in the shell 16, and is slidably installed on the magnetic conductive component 17 between a first position and a second position, the pushing component 18 is suitable for abutting against the static contact 13 in the first position, and the pushing component 18 is suitable for disconnecting from the static contact 13 in the second position.

[0151] like Figure 8-Figure 10As shown, the housing 16 includes an upper shell 161 and a lower shell 162 that are connected. The upper shell 161 and the lower shell 162 can be connected by a snap connection, a threaded connection or a pin connection. The static contact 13 passes through the upper shell 161, and the relay 10 also includes a seal 19, which is arranged between the upper shell 161 and the static contact 13 to reduce the entry of impurities, dirt, etc. in the external environment into the interior of the mounting cover 11. The third positioning hole 1621 and the fourth positioning hole 1622 can pass through the lower shell 162, that is, the first auxiliary support leg 1731 can protrude from the lower shell 162 through the third positioning hole 1621, and the second auxiliary support leg 1732 can protrude from the lower shell 162 through the fourth positioning hole 1622.

[0152] The sealing member 19 may include but is not limited to a sealing pad or a sealing ring, etc., which is not limited here.

[0153] The shape of the third positioning hole 1621 may include but is not limited to circle, oval, square, triangle or other polygons, etc., which is not limited here.

[0154] For example, in some embodiments, Fig.10 As shown, the third positioning hole 1621 is in a square shape.

[0155] The shape of the fourth positioning hole 1622 may include, but is not limited to, a circle, an ellipse, a square, a triangle or other polygons, etc., which is not limited here.

[0156] For example, in some embodiments, Fig.10 As shown, the fourth positioning hole 1622 is in a square shape.

[0157] like Fig. 9As shown, the magnetic conductive component 17 includes a first magnetic yoke 171, a second magnetic yoke 172, a skeleton 173, a coil 174, a sleeve 175 and a static iron core 176. The first magnetic yoke can block the opening of the above-mentioned mounting cover 11. The first magnetic yoke 171 and the second magnetic yoke 172 can also define a cavity for installing the skeleton 173, the coil 174, the sleeve 175 and the static iron core 176. The sleeve 175 is installed in the middle through hole of the skeleton 173, the coil 174 is wound around the outer peripheral wall of the skeleton 173, at least a part of the static iron core 176 is installed in the sleeve 175, and the static iron core 176 is fixedly connected to the first magnetic yoke 171, and the push component 18 is slidably matched with the sleeve 175. The push assembly 18 includes a push rod 181, a reset spring 182, a buffer spring 183, a moving contact plate 184 and a moving iron core 185. The moving iron core 185 is slidably installed in the sleeve 175. One end of the push rod 181 is fixedly connected to the moving iron core 185, and the other end of the push rod 181 is fixedly connected to the moving contact plate 184. The reset spring 182 and the buffer spring 183 are both sleeved on the push rod 181. The reset spring 182 is used to help the push assembly 18 that has reached the first position return to the second position. The buffer spring 183 is used to reduce the rigid contact between the static contact 13 and the moving contact during the closing and disconnecting process of the relay 10, so as to improve the stability of the relay 10 and reduce the noise of the relay 10. Two moving contacts are arranged on the moving contact plate 184. When the push assembly 18 is in the first position, the two moving contacts are electrically connected to the two static contacts 13 respectively. When the push assembly 18 is in the second position, the two moving contacts are electrically disconnected from the two static contacts 13 respectively.

[0158] In this embodiment, if Figure 5 , Figure 7 and Fig. 9As shown, the skeleton 173 includes a skeleton body 1733, two first auxiliary legs 1731 and two second auxiliary legs 1732, the coil 174 is wound around the outer peripheral wall of the skeleton body 1733, the sleeve 175 is installed in the middle through hole of the skeleton body 1733, the two first auxiliary legs 1731 and the two second auxiliary legs 1732 can be arranged at the four corners of the bottom of the skeleton body 1733 respectively, and the two first auxiliary legs 1731 are arranged on the same side, and the two second auxiliary legs 1732 are arranged on the same side, so as to facilitate the assembly of the circuit board with the high-voltage detection circuit and the circuit board with the low-voltage control circuit at the bottom of the relay 10. Correspondingly, two third positioning holes 1621 and two fourth positioning holes 1622 are provided on the lower shell 162, and the two third positioning holes 1621 and the two fourth positioning holes 1622 are distributed at the four corners of the bottom of the lower shell 162. Among the two first auxiliary legs 1731, one of the first auxiliary legs 1731 is connected to one of the auxiliary contacts 14 through the bus 15, and the other first auxiliary leg 1731 is connected to the other auxiliary contact 14 through the bus 15, and the two first auxiliary legs 1731 are both connected to the high-voltage detection circuit, and the auxiliary contact 14 and the static contact 13 are connected in parallel through the conductive layer 12; among the two second auxiliary legs 1732, one of the second auxiliary legs 1732 can be wound around and welded to the head end of the coil 174, and the other second auxiliary leg 1732 can be wound around and welded to the end of the coil 174, and the two second auxiliary legs 1732 are both connected to the low-voltage control circuit.

[0159] For example, Fig.11 As shown, the first auxiliary support leg 1731 includes a plate structure and four column structures. The four column structures can be connected to the four corners of the plate structure respectively. The shape of the column structure can be a square column or a round column, etc. Among them, there can be a column structure among the four column structures that is folded outward to form a flange, that is, the column structure with the flange is L-shaped as a whole, and the flange can be provided with the above-mentioned second positioning hole 17311 for cooperating with the bus 15.

[0160] For example, Fig.12 As shown, the second auxiliary support leg 1731 includes a plate structure and four column structures, and the four column structures can be connected to the four corners of the plate structure respectively. The shape of the column structure can be a square column or a round column, etc., wherein one of the four column structures can be in a bent shape. Specifically, the column structure can include a horizontal segment and two vertical segments connected to the two ends of the horizontal segment, and the extension directions of the two vertical segments are opposite, wherein one vertical segment is connected between the plate structure and the horizontal segment, one end of the other vertical segment is connected to the horizontal segment, and the other end is cantilevered for winding and connecting the beginning or end of the coil 174.

[0161] The relay 10 provided in the embodiment of the present application, through the structural design of the third positioning hole 1621, the fourth positioning hole 1622 and the skeleton 173, the third positioning hole 1621 and the fourth positioning hole 1622 on the housing 16 provide precise installation positions for the first auxiliary support leg 1731 and the second auxiliary support leg 1732. This design not only simplifies the installation process and reduces installation errors caused by position offset, but also improves installation efficiency. At the same time, it improves the stability and reliability of the first auxiliary support leg 1731 and the second auxiliary support leg 1732 after installation, reduces electrical failures caused by loosening or falling off, and directly designs the first auxiliary support leg 1731 and the second auxiliary support leg 1732 as part of the skeleton 173, thereby realizing the integration of electrical connection and electromagnetic control functions. This design not only reduces the number of scattered components and simplifies the overall structure of the relay 10, but also improves the overall compactness and reliability of the relay 10.

[0162] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0163] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0164] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0165] In the description of the present application, “plurality” means two or more.

[0166] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0167] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0168] Other structures of ... according to the embodiments of the present application, such as ... and ..., and operations are known to ordinary technicians in the field and will not be described in detail here.

[0169] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 present application. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0170] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A relay, characterized in that: include: A relay body, the relay body comprising a mounting cover, a stationary contact and an auxiliary contact arranged on the mounting cover and spaced apart from each other, wherein at least a portion of the stationary contact is located inside the mounting cover, and the auxiliary contact is located outside the mounting cover, a portion of the outer surface of the mounting cover is covered with a conductive layer, the stationary contact is electrically connected to the auxiliary contact through the conductive layer, and at least a portion of the conductive layer is connected between the stationary contact and the mounting cover and between the auxiliary contact and the mounting cover.

2. The relay according to claim 1, characterized in that: The mounting cover comprises a cover body and a boss protruding outward from the cover body, the conductive layer covers at least a portion of the wall surface of the boss, and at least a portion of the conductive layer is connected between the boss and the static contact and between the boss and the auxiliary contact.

3. The relay according to claim 2, characterized in that: The conductive layer covers the wall surface of the boss away from the cover body.

4. The relay according to claim 2, characterized in that: The boss includes a connected assembly section and an extension section. The assembly section is annular, arranged around the static contact and clamped between the static contact and the cover body. The extension section is connected between the assembly section and the auxiliary contact.

5. The relay according to claim 4, characterized in that: The extended section includes a first section and a second section that are connected. The first section is connected between the assembly section and the second section. The first section is bent relative to the second section, and the angle between the first section and the second section is an obtuse angle. The second section extends from one end of the first section away from the first section to a middle area of ​​an edge of the cover body.

6. The relay according to claim 2, characterized in that: The height h1 of the boss satisfies: 0.2mm≤h1≤0.8mm.

7. The relay according to claim 1, characterized in that: The thickness h2 of the conductive layer satisfies: 5um≤h2≤20um.

8. The relay according to claim 1, characterized in that: The conductive layer includes a metal layer.

9. The relay according to claim 1, characterized in that: The conductive layer is covered on a portion of the outer surface of the mounting cover by electroplating, and the static contact and the auxiliary contact are connected to the conductive layer by soldering.

10. The relay according to any one of claims 1 to 9, characterized in that: The relay body includes a first auxiliary leg for electrically connecting to a high-voltage detection circuit and a second auxiliary leg for electrically connecting to a low-voltage control circuit. The first auxiliary leg and the second auxiliary leg are spaced apart and protrude in a direction away from the static contact.

11. The relay according to claim 10, characterized in that: The outer wall surface of the first auxiliary support foot facing away from the static contact is used to be electrically connected to the high-voltage detection circuit, the outer wall surface of the second auxiliary support foot facing away from the static contact is used to be electrically connected to the high-voltage detection circuit, and the outer wall surface of the first auxiliary support foot facing away from the static contact is flush with the outer wall surface of the second auxiliary support foot facing away from the static contact.

12. The relay according to claim 10, characterized in that: Also includes: A bus, one end of which is electrically connected to the auxiliary contact, and the other end of which is electrically connected to the high-voltage detection circuit through the first auxiliary leg.

13. The relay according to claim 12, characterized in that: The busbar is provided with a first positioning hole, and the auxiliary contact is passed through the first positioning hole; and / or, The first auxiliary support leg is provided with a second positioning hole, and the busbar is passed through the second positioning hole.

14. The relay according to claim 10, characterized in that: The relay body comprises: A housing, wherein the mounting cover and the auxiliary contact are both disposed in the housing, the static contact passes through the housing, and the housing has a third positioning hole for mounting the first auxiliary leg and a fourth positioning hole for mounting the second auxiliary leg; A magnetic conductive component, the magnetic conductive component is arranged in the housing, connected to the side of the mounting cover away from the static contact, and includes a frame and a coil wound on the outer peripheral wall of the frame and connected to the second auxiliary leg, and the frame includes the first auxiliary leg and the second auxiliary leg; A pushing component is arranged in the shell and is slidably installed on the magnetic conductive component between a first position and a second position. The pushing component is suitable for abutting against the static contact in the first position and is suitable for disconnecting from the static contact in the second position.

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