Relay

Abstract

Provided in the present disclosure is a relay, comprising a contact assembly and an arc-extinguishing assembly. The contact assembly comprises two contact portions, wherein one of the contact portions has a first stationary contact and a first lead-out piece, the first stationary contact being mounted on the first lead-out piece; and the other contact portion has a first movable contact configured to come into contact with or separate from the first stationary contact. The arc-extinguishing assembly comprises a magnetically conductive member and a permanent magnet, wherein the magnetically conductive member is connected to the first lead-out piece; and the permanent magnet is mounted on the side of the magnetically conductive member facing the first movable contact and the first stationary contact, is located around the first movable contact and the first stationary contact, and is configured to extinguish an arc generated between the first movable contact and the first stationary contact.

Description

relay

[0001] This disclosure claims priority to Chinese Patent Application No. 202411803259.X, filed on December 09, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electrical control device technology, and more specifically, to a relay. Background Technology

[0003] 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), and is commonly used in automatic control circuits. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0004] As the application scope of relays continues to expand, relays are also developing towards higher load and smaller size. However, the temperature rise problem of relays in related technologies has not been well solved. Excessive temperature rise can easily lead to accelerated aging of the plastic and insulating materials inside the relay, oxidation and corrosion of the contacts, making it difficult to extinguish the arc, and thus causing problems such as the degradation of the technical parameters of electrical components and reduced reliability. Summary of the Invention

[0005] This application provides a relay to solve the problem of excessive temperature rise in related technologies.

[0006] The relay in this application embodiment includes:

[0007] A contact assembly includes two contact portions, one of which has a first stationary contact and a first lead-out tab, the first stationary contact being mounted on the first lead-out tab, and the other contact portion having a first movable contact for contacting or separating from the first stationary contact; and

[0008] An arc-extinguishing assembly includes a magnetic conductor and a permanent magnet. The magnetic conductor is connected to the first lead-out piece, and the permanent magnet is installed on the side of the magnetic conductor facing the first moving contact and the first stationary contact, and is located around the first moving contact and the first stationary contact, for extinguishing the electric arc generated between the first moving contact and the first stationary contact.

[0009] According to some embodiments of this application, the first stationary contact connects the first lead-out piece and the magnetic conductor by riveting.

[0010] According to some embodiments of this application, the two contact portions are respectively a first contact portion and a second contact portion. The first contact portion includes a first movable spring, a first stationary contact, and a second movable contact. The second contact portion includes a second movable spring, the first movable contact, and a second stationary contact. The second movable contact is used to contact or separate from the second stationary contact. The first movable spring and the second movable spring are arranged side by side.

[0011] The first stationary contact connects the first lead-out piece, the magnetic conductor, and the first moving spring piece by riveting.

[0012] According to some embodiments of this application, the magnetic conductive element has a first through hole, the first movable spring has a second through hole, the first lead-out piece has a third through hole, the first stationary contact is disposed in the first through hole, the second through hole and the third through hole, and the first movable spring, the magnetic conductive element and the first lead-out piece are riveted together.

[0013] According to some embodiments of this application, the first lead-out piece is located on the side of the first movable spring piece facing away from the second movable spring piece.

[0014] According to some embodiments of this application, the magnetic conductive member includes a first magnetic conductive part and a second magnetic conductive part. The first magnetic conductive part is located on the side of the first moving spring that faces away from the second moving spring. The second magnetic conductive part is connected to the first magnetic conductive part and is located around the first moving contact and the first stationary contact.

[0015] The permanent magnet is mounted on the side surface of the second magnetic conductive part facing the first stationary contact.

[0016] According to some embodiments of this application, the first magnetically conductive portion has a notch;

[0017] The first lead-out piece includes a first lead-out portion and a second lead-out portion. The first lead-out portion is located between the first movable spring and the first magnetic conductive portion. The second lead-out portion is connected to the first lead-out portion and extends through the notch onto the side surface of the first magnetic conductive portion opposite to the first lead-out portion.

[0018] According to some embodiments of this application, the first lead-out sheet further includes a third lead-out portion, which is connected to the end of the second lead-out portion away from the first lead-out portion; the third lead-out portion is perpendicular to the second lead-out portion, the second lead-out portion is perpendicular to the first lead-out portion, and the third lead-out portion and the first lead-out portion are respectively located on both sides of the thickness direction of the second lead-out portion.

[0019] According to some embodiments of this application, the two contact portions are respectively a first contact portion and a second contact portion. The first contact portion includes a first movable spring, a first stationary contact and a second movable contact. The second contact portion includes a second movable spring, a first movable contact and a second stationary contact. The second movable contact is used to contact or separate from the second stationary contact.

[0020] When the contact assembly is in the open state, the contact gap between the first moving contact and the first stationary contact is smaller than the contact gap between the second moving contact and the second stationary contact.

[0021] According to some embodiments of this application, the relay further includes a housing, the contact assembly and the arc extinguishing assembly are disposed inside the housing, a portion of the first lead-out piece extends out of the outer surface of the housing, and a second positioning portion is provided on the inner wall surface of the housing;

[0022] The magnetic conductive component has a first positioning part, which is positioned and engaged with a second positioning part.

[0023] According to some embodiments of this application, the second positioning part is a groove, and the first positioning part is positioned within the groove.

[0024] According to some embodiments of this application, the magnetic conductive element is a sheet-like structure, and the thickness of the magnetic conductive element is less than the thickness of the first lead-out sheet.

[0025] An embodiment of the above application has at least the following advantages or beneficial effects:

[0026] The relay of this application embodiment includes an arc-extinguishing assembly for extinguishing the arc between a first moving contact and a first stationary contact. The arc-extinguishing assembly includes a magnetic conductor and a permanent magnet. The magnetic conductor is connected to a first lead-out piece, and the permanent magnet is mounted on the magnetic conductor. On the one hand, the magnetic conductor prevents the magnetic field generated by the permanent magnet from spreading outward and affecting the arc-extinguishing effect, thereby enhancing the arc-blowing magnetic field strength at the center of the arc. On the other hand, the connection between the magnetic conductor and the first lead-out piece increases the heat dissipation area of ​​the contact assembly, thereby reducing the temperature rise.

[0027] Furthermore, the first stationary contact is inserted into the first through hole, the second through hole, and the third through hole, and rivets the first moving spring, the magnetic conductor, and the first lead-out piece together. By riveting the first moving spring, the magnetic conductor, and the first lead-out piece together through the first stationary contact, the assembly efficiency of the first moving spring, the first lead-out piece, and the magnetic conductor can be improved.

[0028] Furthermore, the magnetic conductor not only serves to conduct magnetism and dissipate heat, but also provides positioning. A single magnetic conductor has at least three functions, reducing the number of parts required for a relay, thus simplifying the design and manufacturing process and improving production efficiency. Moreover, replacing multiple parts with a single component significantly improves space utilization, thereby reducing product size. Attached Figure Description

[0029] Figure 1 shows a perspective view of a relay according to an embodiment of this application.

[0030] Figure 2 shows an exploded view of a relay according to an embodiment of this application.

[0031] Figure 3 shows a top view of the first housing and fasteners, omitting Figure 1.

[0032] Figure 4 shows a top view of the first contact portion and the arc-extinguishing assembly installed inside the second housing.

[0033] Figure 5 shows a three-dimensional schematic diagram of the arc extinguishing component and the first contact part after assembly from one perspective.

[0034] Figure 6 shows a three-dimensional schematic diagram of the arc extinguishing component and the first contact part assembled from another perspective.

[0035] Figure 7 shows a three-dimensional schematic diagram of the magnetic conductor.

[0036] The reference numerals in the attached drawings are explained as follows: 100, outer casing; 110, first housing; 120, second housing; 121, second positioning part; 200, contact assembly; 200a, arc-resistant end contact group; 200b, current-carrying end contact group; 210, first contact portion; 211, first moving spring; 212, first stationary contact; 213, second moving contact; 220, second contact portion; 221, second moving spring; 222, first moving contact; 223, second stationary contact; 230 1. First lead-out piece; 231. First lead-out part; 232. Second lead-out part; 233. Third lead-out part; 240. Second lead-out piece; 300. Armature assembly; 310. Fixing member; 331. Swing shaft; 500. Coil assembly; 700. Arc extinguishing assembly; 710. Magnetic conductor; 711. First magnetic conductor part; 7111. Notch; 712. Second magnetic conductor part; 713. First positioning part; 714. First through hole; 720. Permanent magnet. Detailed Implementation

[0037] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0038] It is understood that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0039] This application provides a relay, which can be a magnetic latching relay, but is not limited thereto. As shown in Figures 1 and 2, the relay includes a housing 100, a contact assembly 200, an armature assembly 300, and a coil assembly 500. The contact assembly 200 is disposed within the housing 100 and has a closed state and an open state. The armature assembly 300 is disposed within the housing 100 and is used to drive the contact assembly 200 to switch from the closed state to the open state and from the open state to the closed state. The coil assembly 500 is disposed within the housing 100 and is electromagnetically coupled to the armature assembly 300.

[0040] In one embodiment, as shown in FIG2, the outer casing 100 may include a first casing 110 and a second casing 120, which are connected together to form a hollow cavity for accommodating the contact assembly 200, the armature assembly 300, and the coil assembly 500. The shape of the first casing 110 and the second casing 120 after connection can have various embodiments. For example, in the embodiment of this application, the shape of the first casing 110 and the second casing 120 after connection is a hollow cuboid. Of course, in other embodiments, the shape of the first casing 110 and the second casing 120 after connection can also be a hollow cylinder, or other suitable shapes.

[0041] As an example, the second housing 120 is a cuboid shape with an opening, and the contact assembly 200, armature assembly 300, and coil assembly 500 are installed inside the second housing 120 through the opening. The first housing 110 is plate-shaped and is fastened to the opening of the second housing 120 to form a hollow cuboid.

[0042] Of course, in other embodiments, both the first housing 110 and the second housing 120 are cuboid in shape and each has an opening on one side. The opening of the first housing 110 is opposite to the opening of the second housing 120, and the first housing 110 and the second housing 120 are fastened together to form a hollow cavity for accommodating the contact assembly 200, the armature assembly 300 and the coil assembly 500.

[0043] As shown in Figure 3, the contact assembly 200 includes two contact portions arranged side-by-side along the thickness direction of the contact portions. Furthermore, the two contact portions form a parallel circuit structure when they come into contact. For ease of explanation, the two contact portions are defined as the first contact portion 210 and the second contact portion 220, respectively.

[0044] The first contact portion 210 includes a first movable spring 211, a first stationary contact 212, and a second movable contact 213, which are respectively mounted at both ends of the first movable spring 211 along its length. As an example, the first stationary contact 212 and the second movable contact 213 can be mounted on the first movable spring 211 by riveting, but this is not a limitation.

[0045] The second contact portion 220 includes a second movable spring 221, a first movable contact 222, and a second stationary contact 223, which are respectively mounted at both ends along the length of the second movable spring 221. As an example, the first movable contact 222 and the second stationary contact 223 can be mounted on the second movable spring 221 by riveting, but this is not a limitation.

[0046] As shown in Figure 3, the first movable spring 211 and the second movable spring 221 are arranged side by side along the thickness direction of the movable springs and are approximately parallel to each other. Along the side-by-side arrangement direction of the first movable spring 211 and the second movable spring 221, the position of the first movable contact 222 corresponds to that of the first stationary contact 212, and the first movable contact 222 is used to contact or separate from the first stationary contact 212; the position of the second movable contact 213 corresponds to that of the second stationary contact 223, and the second movable contact 213 is used to contact or separate from the second stationary contact 223.

[0047] When the contact assembly 200 is in the closed state, the first moving contact 222 is in contact with the first stationary contact 212, and the second moving contact 213 is in contact with the second stationary contact 223, so that the first moving spring 211 and the second moving spring 221 form a parallel circuit structure. When the contact assembly 200 is in the open state, the first moving contact 222 is separated from the first stationary contact 212, and the second moving contact 213 is separated from the second stationary contact 223.

[0048] As shown in Figures 2 and 3, the relay also includes a fixing member 310, which is fixedly installed within the housing 100. In one embodiment, the fixing member 310 is connected to the second housing 120, but this is not a limitation. The armature assembly 300 is located on the side of the second contact portion 220 facing away from the first contact portion 210. The armature assembly 300 is pivotally connected to the fixing member 310 via a pivot shaft 331, which drives the first moving spring 211 and the second moving spring 221 to move, respectively, so that the first moving contact 222 and the second moving contact 213 respectively contact or separate from the first stationary contact 212 and the second stationary contact 223. The coil assembly 500 is configured to drive the armature assembly 300 to pivot relative to the fixing member 310 in response to an input signal.

[0049] In one embodiment, when the contact assembly 200 is in the off state, the contact gap between the first moving contact 222 and the first stationary contact 212 is smaller than the contact gap between the second moving contact 213 and the second stationary contact 223.

[0050] For ease of explanation, the first moving contact 222 and the first stationary contact 212 with a smaller contact gap are defined as the arc-resistant end contact group 200a, and the second moving contact 213 and the second stationary contact 223 with a larger contact gap are defined as the current-carrying end contact group 200b.

[0051] Because the contact gap of the arc-resistant contact group 200a is smaller than that of the current-carrying contact group 200b when the contact component 200 is in the open state, the current-carrying contact group 200b will disconnect before the arc-resistant contact group 200a during the switching process from the closed to the open state of the contact component 200. Furthermore, the arc-resistant contact group 200a is not completely disconnected until the current-carrying contact group 200b has just disconnected. Therefore, the current-carrying contact group 200b functions as a current carrier, while the arc-resistant contact group 200a functions as an arc suppressor. In other words, the arc-resistant contact group 200a will generate an electric arc, while the current-carrying contact group 200b will not.

[0052] As shown in Figures 2 and 3, the first contact portion 210 further includes a first lead-out piece 230, and the second contact portion 220 further includes a second lead-out piece 240. The first lead-out piece 230 is connected to one end of the first moving spring 211 that has a first stationary contact 212, and a portion of the first lead-out piece 230 extends beyond the outer surface of the housing 100. The second lead-out piece 240 is connected to one end of the second moving spring 221 that has a second stationary contact 223, and a portion of the second lead-out piece 240 extends beyond the outer surface of the housing 100. The portions of the first lead-out piece 230 and the second lead-out piece 240 extending beyond the outer surface of the housing 100 are used to connect to the positive and negative terminals of the load.

[0053] Of course, in other embodiments, the first contact portion 210 and the second contact portion 220 are not limited to a parallel circuit structure when closed. For example, in another embodiment, the first contact portion 210 includes a first lead-out piece 230 and a first stationary contact 212, with the first stationary contact 212 disposed on the first lead-out piece 230. The second contact portion 220 includes a second moving spring 221 and a first moving contact 222, with the first moving contact 222 disposed on the second moving spring 221. The armature assembly 300 is used to drive the second moving spring 221 to move, so that the first moving contact 222 contacts or separates from the first stationary contact 212.

[0054] As shown in Figures 4 to 6, the relay also includes an arc-extinguishing assembly 700, which is disposed within the housing 100. The arc-extinguishing assembly 700 includes a magnetic conductor 710 and a permanent magnet 720. The magnetic conductor 710 is connected to the first lead-out piece 230. The permanent magnet 720 is mounted on the side of the magnetic conductor 710 facing the first moving contact 222 and the first stationary contact 212 (i.e., the arc-resistant end contact group 200a), and is located around the first moving contact 222 and the first stationary contact 212, for extinguishing the arc generated between the first moving contact 222 and the first stationary contact 212.

[0055] The relay of this application embodiment includes an arc-extinguishing assembly 700 for extinguishing the arc between the first moving contact 222 and the first stationary contact 212. The arc-extinguishing assembly 700 includes a magnetic conductor 710 and a permanent magnet 720. The magnetic conductor 710 is connected to the first lead-out piece 230, and the permanent magnet 720 is mounted on the magnetic conductor 710. On the one hand, the magnetic conductor 710 can prevent the magnetic field generated by the permanent magnet 720 from spreading outward and affecting the arc-extinguishing effect, thereby enhancing the arc-blowing magnetic field strength at the center of the arc. On the other hand, the connection between the magnetic conductor 710 and the first lead-out piece 230 increases the heat dissipation area of ​​the contact assembly 200, thereby reducing the temperature rise.

[0056] In one embodiment, the magnetic conductor 710 may be made of a soft magnetic material, which may include, but is not limited to, iron, cobalt, nickel, and their alloys.

[0057] It should also be noted that, since the first moving contact 222 and the first stationary contact 212 constitute the arc-resistant end contact group 200a, in this embodiment of the application, the arc-extinguishing component 700 is only provided around the first moving contact 222 and the first stationary contact 212 (i.e., the arc-resistant end contact group 200a) that can generate an electric arc, and is not provided around the second moving contact 213 and the second stationary contact 223 (i.e., the current-carrying end contact group 200b) that cannot generate an electric arc, so as to achieve "targeted" and save material costs.

[0058] As shown in Figures 4 to 6, the first lead-out piece 230 is located on the side of the first movable spring piece 211 facing away from the second movable spring piece 221, and the first lead-out piece 230 includes a first lead-out portion 231, a second lead-out portion 232, and a third lead-out portion 233. The first lead-out portion 231 is connected to the first movable spring piece 211, and the first lead-out portion 231 is arranged parallel to the first movable spring piece 211. One end of the second lead-out portion 232 is connected to the first lead-out portion 231, and the other end is connected to the third lead-out portion 233. The third lead-out portion 233 extends out of the outer surface of the housing 100 for connection with a load.

[0059] In one embodiment, the third lead-out portion 233 is perpendicular to the second lead-out portion 232, the second lead-out portion 232 is perpendicular to the first lead-out portion 231, and the third lead-out portion 233 and the first lead-out portion 231 are located on both sides of the thickness direction of the second lead-out portion 232.

[0060] As shown in Figures 5 to 7, the magnetic conductor 710 includes a first magnetic conductor 711 and a second magnetic conductor 712. The first magnetic conductor 711 is located on the side of the first moving spring 211 facing away from the second moving spring 221. The second magnetic conductor 712 is connected to the first magnetic conductor 711 and is located around the first moving contact 222 and the first stationary contact 212. The permanent magnet 720 is mounted on the surface of the second magnetic conductor 712 facing the first stationary contact 212.

[0061] In one embodiment, the first magnetic conductive part 711 and the second magnetic conductive part 712 are perpendicularly connected, but this is not a limitation.

[0062] As shown in Figures 6 and 7, the first magnetically conductive part 711 has a notch 7111. The first lead-out part 231 is located between the first movable spring 211 and the first magnetically conductive part 711, and the second lead-out part 232 extends through the notch 7111 onto the side surface of the first magnetically conductive part 711 facing away from the first lead-out part 231.

[0063] As shown in Figures 5 to 7, the first magnetic part 711 of the magnetic conductor 710 has a first through hole 714, which penetrates the first magnetic part 711 along its thickness direction. The first movable spring 211 has a second through hole (not shown in the figures), which penetrates the first movable spring 211 along its thickness direction. The first lead-out part 231 of the first lead-out piece 230 has a third through hole (not shown in the figures), which penetrates the first lead-out part 231 along its thickness direction. The first through hole 714, the second through hole, and the third through hole are positioned correspondingly. The first stationary contact 212 passes through the first through hole 714, the second through hole, and the third through hole, and rivets the first movable spring 211, the magnetic conductor 710, and the first lead-out piece 230 together.

[0064] In this embodiment of the application, the first moving spring 211, the magnetic conductor 710 and the first lead-out piece 230 are riveted together by the first stationary contact 212, which can improve the assembly efficiency of the first moving spring 211, the first lead-out piece 230 and the magnetic conductor 710.

[0065] It should be noted that in other embodiments, the magnetic conductor 710 may not be directly connected to the first stationary contact 212, but may be directly connected to the first lead-out piece 230, for example by riveting, welding or other methods.

[0066] As shown in Figures 4 and 7, the magnetic conductive element 710 further includes a first positioning part 713, which is connected to the end of the first magnetic conductive part 711 away from the second magnetic conductive part 712. A second positioning part 121 is provided on the inner wall surface of the second housing 120, and the first positioning part 713 and the second positioning part 121 are positioned and engaged. The magnetic conductive element 710 has a sheet-like structure, and its thickness is less than the thickness of the first lead-out piece 230.

[0067] In related technologies, the first contact portion 210 is typically positioned and connected to the housing 100 via a first lead-out piece 230. Specifically, one end of the first lead-out piece 230 is bent to form a positioning structure, which engages with the housing 100. Since the first lead-out piece 230 is used to connect to the load, its thickness needs to be designed to be relatively large to ensure sufficient current carrying capacity. However, when the first lead-out piece 230 is thick, it is difficult to bend it to form a positioning structure, and even if a positioning structure is formed, it occupies a large space. Furthermore, in related technologies, to reduce the space occupied by the positioning structure, it is usually flattened; however, the flattening process can easily damage the parts.

[0068] In this embodiment, the magnetic conductive element 710 is connected to the first lead-out piece 230, and the magnetic conductive element 710 is thinner than the first lead-out piece 230. Therefore, a first positioning part 713 is provided on the magnetic conductive element 710 to position and cooperate with the second positioning part 121 of the housing 100. Since the first positioning part 713 is thinner, the space occupied is significantly reduced, and there is no need for subsequent flattening. In addition, since the magnetic conductive element 710 and the first lead-out piece 230 are independent parts, the thickness and / or shape of the magnetic conductive element 710 can be flexibly set according to design requirements without being overly restricted in thickness due to consideration of current carrying capacity, thus reducing the processing difficulty of the magnetic conductive element 710.

[0069] Therefore, in this embodiment, the magnetic conductive element 710 not only serves the functions of magnetic conduction and heat dissipation, but also positioning. One magnetic conductive element 710 has at least three functions, reducing the number of parts required for the relay, thereby simplifying the design and manufacturing process and helping to improve production efficiency. Furthermore, using one part to replace multiple parts can significantly improve space utilization, thereby reducing product size.

[0070] In one embodiment, the first positioning part 713 is formed by integrally bending one end of the magnetic conductor 710.

[0071] It is understood that the thickness of the first lead-out piece 230 can be designed according to the current carrying capacity, and the thickness of the magnetic conductive element 710 can be designed according to the magnetic conductivity requirements. Therefore, in other embodiments, the thickness of the magnetic conductive element 710 can also be equal to or greater than the thickness of the first lead-out piece 230, and this application does not impose any particular limitation on this.

[0072] As shown in Figure 4, the second positioning part 121 is a groove, and the first positioning part 713 is positioned in the groove.

[0073] It is understood that the second positioning part 121 in the second housing 120 that is positioned and engaged with the first positioning part 713 is not limited to a groove. For example, the second positioning part 121 can also be a positioning hole, a positioning protrusion, etc.

[0074] In summary, the relays of the embodiments of this application have at least the following advantages and beneficial effects:

[0075] The relay of this application embodiment includes an arc-extinguishing assembly 700 for extinguishing the arc between the first moving contact 222 and the first stationary contact 212. The arc-extinguishing assembly 700 includes a magnetic conductor 710 and a permanent magnet 720. The magnetic conductor 710 is connected to the first lead-out piece 230, and the permanent magnet 720 is mounted on the magnetic conductor 710. On the one hand, the magnetic conductor 710 can prevent the magnetic field generated by the permanent magnet 720 from spreading outward and affecting the arc-extinguishing effect, thereby enhancing the arc-blowing magnetic field strength at the center of the arc. On the other hand, the connection between the magnetic conductor 710 and the first lead-out piece 230 increases the heat dissipation area of ​​the contact assembly 200, thereby reducing the temperature rise.

[0076] Furthermore, the first stationary contact 212 passes through the first through hole 714, the second through hole, and the third through hole, and rivets the first moving spring 211, the magnetic conductor 710, and the first lead-out piece 230 together. Riveting the first moving spring 211, the magnetic conductor 710, and the first lead-out piece 230 together via the first stationary contact 212 improves the assembly efficiency of these components.

[0077] Furthermore, the magnetic conductor 710 not only serves the functions of magnetic conduction and heat dissipation, but also provides positioning. One magnetic conductor 710 has at least three functions, reducing the number of parts required for the relay, thereby simplifying the design and manufacturing process and improving production efficiency. Moreover, replacing multiple parts with a single component significantly improves space utilization, thus reducing product size.

[0078] It is understood that the various embodiments / implementations provided in this application can be combined with each other without creating contradictions, and will not be described one by one here.

[0079] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0080] In the description of the embodiments of the application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the application.

[0081] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the claims. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.

Claims

1. A relay, characterized in that, include: A contact assembly includes two contact portions, one of which has a first stationary contact and a first lead-out piece, the first stationary contact being mounted on the first lead-out piece, and the other contact portion having a first movable contact for contacting or separating from the first stationary contact; as well as An arc-extinguishing assembly includes a magnetic conductor and a permanent magnet. The magnetic conductor is connected to the first lead-out piece, and the permanent magnet is installed on the side of the magnetic conductor facing the first moving contact and the first stationary contact, and is located around the first moving contact and the first stationary contact, for extinguishing the electric arc generated between the first moving contact and the first stationary contact.

2. The relay according to claim 1, characterized in that, The first stationary contact connects the first lead-out piece and the magnetic conductor by riveting.

3. The relay according to claim 1, characterized in that, The two contact portions are a first contact portion and a second contact portion. The first contact portion includes a first movable spring, a first stationary contact, and a second movable contact. The second contact portion includes a second movable spring, a first movable contact, and a second stationary contact. The second movable contact is used to contact or separate from the second stationary contact. The first movable spring and the second movable spring are arranged side by side. The first stationary contact connects the first lead-out piece, the magnetic conductor, and the first moving spring piece by riveting.

4. The relay according to claim 3, characterized in that, The magnetic conductive element has a first through hole, the first movable spring has a second through hole, the first lead-out piece has a third through hole, the first stationary contact is disposed in the first through hole, the second through hole and the third through hole, and the first movable spring, the magnetic conductive element and the first lead-out piece are riveted together.

5. The relay according to claim 3, characterized in that, The first lead-out piece is located on the side of the first movable spring that faces away from the second movable spring.

6. The relay according to claim 3, characterized in that, The magnetic conductive component includes a first magnetic conductive part and a second magnetic conductive part. The first magnetic conductive part is located on the side of the first movable spring that faces away from the second movable spring. The second magnetic conductive part is connected to the first magnetic conductive part and is located around the first movable contact and the first stationary contact. The permanent magnet is mounted on the side surface of the second magnetic conductive part facing the first stationary contact.

7. The relay according to claim 6, characterized in that, The first magnetically conductive part has a notch; The first lead-out piece includes a first lead-out portion and a second lead-out portion. The first lead-out portion is located between the first movable spring and the first magnetic conductive portion. The second lead-out portion is connected to the first lead-out portion and extends through the notch onto the side surface of the first magnetic conductive portion opposite to the first lead-out portion.

8. The relay according to claim 7, characterized in that, The first lead-out piece further includes a third lead-out portion, which is connected to the end of the second lead-out portion away from the first lead-out portion; the third lead-out portion is perpendicular to the second lead-out portion, the second lead-out portion is perpendicular to the first lead-out portion, and the third lead-out portion and the first lead-out portion are respectively located on both sides of the thickness direction of the second lead-out portion.

9. The relay according to claim 1, characterized in that, The two contact portions are a first contact portion and a second contact portion. The first contact portion includes a first movable spring, a first stationary contact, and a second movable contact. The second contact portion includes a second movable spring, a first movable contact, and a second stationary contact. The second movable contact is used to contact or separate from the second stationary contact. When the contact assembly is in the open state, the contact gap between the first moving contact and the first stationary contact is smaller than the contact gap between the second moving contact and the second stationary contact.

10. The relay according to any one of claims 1-9, characterized in that, The relay also includes a housing, the contact assembly and the arc extinguishing assembly are disposed inside the housing, a portion of the first lead-out piece extends out of the outer surface of the housing, and a second positioning part is provided on the inner wall surface of the housing; The magnetic conductive component has a first positioning part, which is positioned and engaged with a second positioning part.

11. The relay according to claim 10, characterized in that, The second positioning part is a groove, and the first positioning part is positioned inside the groove.

12. The relay according to claim 10, characterized in that, The magnetic conductive element has a sheet-like structure, and the thickness of the magnetic conductive element is less than the thickness of the first lead-out sheet.

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