relay

Abstract

The application discloses a relay, which comprises a first static magnet, a first dynamic magnet, a second dynamic magnet and a second static magnet. The first dynamic magnet is movable relative to the first static magnet; the second dynamic magnet is located on the side of the first dynamic magnet which is away from the first static magnet and is movable relative to the first static magnet along the moving direction of the first dynamic magnet; and the second static magnet is fixedly arranged on the side of the first dynamic magnet which is away from the first static magnet.

Description

Technical Field

[0001] This application relates to the field of electrical control device technology, and more specifically, to a relay. Background Technology

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), 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.

[0003] Magnetic latching relays, as a type of relay, use permanent magnets or electromagnets to maintain the contact state, offering the advantage of energy saving. Therefore, magnetic latching relays are widely used in scenarios requiring low power consumption and long-term state maintenance, and are a common type of relay in intelligent control and energy-saving devices.

[0004] Existing relays include a stationary contact assembly, a coil assembly, a moving assembly, a moving iron core, and a stationary iron core. The moving iron core is fixedly connected to the moving assembly. The coil assembly is configured to drive the moving iron core to move in response to an input signal, which in turn drives the moving assembly to move, causing the moving assembly to contact or separate from the stationary contact assembly. However, due to manufacturing errors and / or assembly errors in the moving and stationary iron cores, the actual magnetic gap of the relay may differ from the preset value, thus affecting the normal operation of the relay. Utility Model Content

[0005] This application provides a relay to improve the problem of inconsistency between the actual magnetic gap and the preset value in related technologies.

[0006] The relay in this application embodiment includes:

[0007] First static magnet;

[0008] The first moving magnetic conductor is movable relative to the first stationary magnetic conductor;

[0009] The second moving magnetic conductor is located on the side of the first moving magnetic conductor opposite to the first stationary magnetic conductor, and is movable relative to the first stationary magnetic conductor along the moving direction of the first moving magnetic conductor; and

[0010] The second stationary magnet is located on the side of the first moving magnet that faces away from the first stationary magnet, and is fixedly disposed relative to the first stationary magnet.

[0011] According to some embodiments of this application, the relay further includes:

[0012] A first elastic element is configured to provide an elastic force to the second moving magnet, causing the second moving magnet to tend to move toward the first moving magnet.

[0013] According to some embodiments of this application, the first elastic element is located between the second static magnetic conductor and the second dynamic magnetic conductor.

[0014] According to some embodiments of this application, one end of the first elastic member abuts against the second moving magnetic body, and the other end abuts against the second stationary magnetic body.

[0015] According to some embodiments of this application, the relay further includes a moving component fixedly connected to the first moving magnetic conductor, the moving component being configured to move relative to the first stationary magnetic conductor in response to an input signal, so as to switch the relay between a first state and a second state;

[0016] When the relay is in the first state, the first moving magnetic material is in contact with the first stationary magnetic material, and the first moving magnetic material is separated from the second moving magnetic material; when the relay is in the second state, the first moving magnetic material is in contact with the second moving magnetic material, and the first moving magnetic material is separated from the first stationary magnetic material.

[0017] According to some embodiments of this application, when the relay is in the second state, the first elastic element has a first deformation, which is greater than zero.

[0018] According to some embodiments of this application, when the first moving magnetic material is separated from the second moving magnetic material, the first elastic element is in its original length state or has a second deformation due to being squeezed by the second moving magnetic material.

[0019] Wherein, when the first elastic element has the second deformation, the first deformation is greater than the second deformation.

[0020] According to some embodiments of this application, the relay further includes a stop structure configured to stop the second moving magnetic element from moving toward the first stationary magnetic element when the first moving magnetic element is separated from the second moving magnetic element.

[0021] According to some embodiments of this application, the stop structure includes a first stop portion and a second stop portion, the second moving magnetic conductor has the first stop portion, the second stationary magnetic conductor has the second stop portion, and the second stop portion is configured to stop the first stop portion from moving toward the first stationary magnetic conductor when the first moving magnetic conductor is separated from the second moving magnetic conductor.

[0022] According to some embodiments of this application, the first stop portion is located on the side of the second stop portion opposite to the first static magnetic conductor.

[0023] According to some embodiments of this application, the relay further includes a moving component configured to move relative to the first stationary magnet in response to an input signal, so as to switch the relay between a first state and a second state; when the relay is in the second state, the first moving magnet is in contact with the second moving magnet, and the first moving magnet is separated from the first stationary magnet.

[0024] When the relay is in the second state, there is a gap between the second stop portion and the first stop portion, or the second stop portion is in contact with the first stop portion.

[0025] According to some embodiments of this application, the second static magnetic conductor includes a magnetic post and a retaining ring. The magnetic post is located on the side of the first moving magnetic conductor facing away from the first static magnetic conductor. The retaining ring is fixedly connected to one end of the magnetic post near the first moving magnetic conductor, and the outer periphery of the retaining ring has a second stop portion. The second moving magnetic conductor has a cylindrical structure and is movably sleeved on at least a portion of the magnetic post.

[0026] According to some embodiments of this application, the outer peripheral side of the magnetic post has a first step and a second step, the first step being closer to the first moving magnetic body than the second step, and the retaining ring being connected to the first step;

[0027] The first stop is located between the second stop and the tread of the second step.

[0028] According to some embodiments of this application, the relay further includes a first elastic element configured to provide an elastic force to the second moving magnetic element, so that the second moving magnetic element has the ability to move in a direction closer to the first moving magnetic element;

[0029] One end of the first elastic member abuts against the tread surface of the second step, and the other end abuts against the first stop portion.

[0030] According to some embodiments of this application, the first static magnetic conductor has a through-hole;

[0031] The relay further includes a first metal shell, which is connected to the side surface of the first stationary magnetic conductor facing the first moving magnetic conductor, and the internal space of the first metal shell is in communication with the first through hole; the first moving magnetic conductor and the second moving magnetic conductor are movably located inside the first metal shell, the second stationary magnetic conductor is fixedly connected to the first metal shell, and at least a portion of the second moving magnetic conductor is located inside the first metal shell.

[0032] According to some embodiments of this application, the first metal shell has a second through hole, and the second static magnetic conductor is fixedly connected to the first metal shell and seals the second through hole.

[0033] According to some embodiments of this application, the second static magnetic conductor includes a magnetic post and a flange. The magnetic post passes through the second through hole, and the flange is located inside the first metal shell and connected to the outer peripheral side of the magnetic post.

[0034] The first metal shell includes a sleeve and an annular flange. One end of the sleeve is connected to the first static magnetic conductor, and the annular flange is connected to the other end of the sleeve. The annular flange is folded inward into the sleeve and forms the second through hole. The flange is attached to the annular flange.

[0035] According to some embodiments of this application, the relay further includes a yoke, which is located on the side of the first metal housing facing away from the first static magnetic material;

[0036] The second static magnetic conductor includes a protrusion that extends out of the outer surface of the first metal shell through the second through hole and is connected to the yoke.

[0037] According to some embodiments of this application, the yoke has a fourth through hole, and the protrusion is inserted into the fourth through hole.

[0038] According to some embodiments of this application, the relay further includes a first magnetic holding assembly, the first magnetic holding assembly including a first permanent magnet located around the first moving conductor magnet.

[0039] According to some embodiments of this application, the relay further includes a first coil assembly surrounding the second stationary magnet; the first coil assembly is located on the side of the first magnetic holding assembly opposite to the first stationary magnet.

[0040] According to some embodiments of this application, the second moving magnetic material surrounds at least a portion of the second stationary magnetic material; or, the second stationary magnetic material surrounds at least a portion of the second moving magnetic material.

[0041] According to some embodiments of this application, the first static magnetic conductor includes a yoke plate and a sub-magnetic conductor. The sub-magnetic conductor, the first moving magnetic conductor, the second moving magnetic conductor, and the second static magnetic conductor are located on one side of the thickness direction of the yoke plate, and the sub-magnetic conductor is fixedly connected to the yoke plate.

[0042] The first moving magnetic conductor is used to contact the sub-magnetic conductor.

[0043] According to some embodiments of this application, the relay further includes a second elastic element connected to the first stationary magnetic conductor and the first moving magnetic conductor, for providing an elastic force to the first moving magnetic conductor to move toward the second moving magnetic conductor.

[0044] According to some embodiments of this application, the first moving magnetic conductor has a receiving groove on the side facing the first stationary magnetic conductor, and at least a portion of the second elastic member is located in the receiving groove.

[0045] According to some embodiments of this application, the relay further includes a moving component fixedly connected to the first moving magnetic conductor, the moving component being configured to move relative to the first stationary magnetic conductor in response to an input signal, so as to switch the relay between a first state and a second state;

[0046] When the relay is in the first state, the first moving magnetic material is in contact with the first stationary magnetic material, and the first moving magnetic material is separated from the second moving magnetic material; when the relay is in the second state, the first moving magnetic material is in contact with the second moving magnetic material, and the first moving magnetic material is separated from the first stationary magnetic material.

[0047] According to some embodiments of this application, one of the first state and the second state is that the relay is in a closed state, and the other of the first state and the second state is that the relay is in an open state; or...

[0048] In either the first state or the second state, the external circuit controlled by the relay is in parallel, and in the other state, the external circuit controlled by the relay is in series.

[0049] An embodiment of the above application has at least the following advantages or beneficial effects:

[0050] The relay of this application embodiment includes a first stationary magnetic body, a first moving magnetic body, a second stationary magnetic body, and a second moving magnetic body. The second moving magnetic body is movable relative to the first stationary magnetic body along the moving direction of the first moving magnetic body. Therefore, when assembling the relay, even if at least one of the first stationary magnetic body, the first moving magnetic body, the second stationary magnetic body, and the second moving magnetic body has a processing error and / or assembly error in the moving direction of the first moving magnetic body, since the second moving magnetic body is designed to be movable, the second moving magnetic body can compensate for the above-mentioned processing error and / or assembly error by moving, thereby ensuring that the magnetic gap of the relay is maintained at a preset value and ensuring the normal operation of the relay.

[0051] Furthermore, when the relay is in the second state, the first moving magnetic material is in contact with the second moving magnetic material. The magnetic field generated by the second moving magnetic material will not be affected by the gap between the first and second moving magnetic materials, thereby ensuring the magnitude of the holding force provided by the second moving magnetic material.

[0052] Furthermore, the relay also includes a first elastic element configured to provide an elastic force to the second moving magnet, causing the second moving magnet to tend to move closer to the first moving magnet. When the first elastic element is compressed by the second moving magnet, it provides an elastic force to the second moving magnet, allowing it to act as a buffer after contact, converting the kinetic energy of the first moving magnet into the elastic potential energy of the first elastic element. This reduces the force of the first moving magnet impacting the second moving magnet, thus reducing noise. Additionally, when the relay is in the second state, the first elastic element provides an elastic force to the second moving magnet, providing initial kinetic energy to the second moving magnet to a certain extent. When the relay switches from the second state to the first state, the elastic force from the first elastic element on the second moving magnet reduces the time from energization and energy storage in the relay coil to the start of movement of the second moving magnet, improving the relay's switching response time.

[0053] Furthermore, the relay also includes a first metal shell, which is connected to the surface of the first stationary magnetic body facing the first moving magnetic body. The second stationary magnetic body is fixedly connected to the first metal shell and seals the second through-hole. On one hand, since the second moving magnetic body is movable relative to the first stationary magnetic body, it can reduce the impact force exerted by the first moving magnetic body on the second stationary magnetic body, thereby ensuring the reliability of the connection between the second stationary magnetic body and the first metal shell. On the other hand, the interior of the first metal shell, as well as the contact chamber formed by the insulating cover and the first stationary magnetic body, all form sealed chambers, allowing the contact chambers to be filled with arc-extinguishing gas, increasing the speed of arc extinguishing when the moving and stationary contacts contact or separate. In addition, when the first moving magnetic body contacts the second moving magnetic body, the first elastic element acts as a buffer, thereby reducing the force of the first moving magnetic body impacting the second moving magnetic body, preventing the second stationary magnetic body from becoming loosely connected due to continuous impact, and thus preventing air leakage from the first metal shell.

[0054] Furthermore, under the elastic force of the first elastic element, the second moving magnetic conductor tends to move towards the first stationary magnetic conductor. A first stop is provided on the second moving magnetic conductor, and a second stop is provided on the second stationary magnetic conductor, with the first stop located on the side of the second stop facing away from the first stationary magnetic conductor. When the first and second moving magnetic conductors separate, the second stop prevents the first stop from moving towards the first stationary magnetic conductor, thus preventing the second and first moving magnetic conductors from moving together. The advantages of providing the first and second stop are twofold: firstly, during the relay switching from the first to the second state, a longer displacement of the second moving magnetic conductor relative to the second stationary magnetic conductor is avoided, thus preventing jamming between them; secondly, increasing the gap between the second moving and second stationary magnetic conductors would affect their magnetic efficiency; and thirdly, the simultaneous movement of the first and second moving magnetic conductors, due to their combined weight, would increase power consumption. Furthermore, when the first moving magnetic conductor separates from the second moving magnetic conductor, the second moving magnetic conductor can be stably arranged under the combined action of the second stop and the first elastic member, thus preventing swaying.

[0055] Furthermore, the second elastic element can provide the first moving magnetic body with an elastic force that moves it closer to the second moving magnetic body. When the relay switches from the first state to the second state, the second elastic element provides initial kinetic energy to the first moving magnetic body to a certain extent, thereby improving the switching response time of the relay.

[0056] Furthermore, by providing a receiving groove on the side of the first moving magnetic conductor facing the first stationary magnetic conductor, and with at least a portion of the second elastic member located within the receiving groove, the space occupied by the second elastic member in the direction of movement of the first moving component can be reduced, which is beneficial for achieving product miniaturization design. Attached Figure Description

[0057] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0058] Figure 1 This is a side view of the relay according to the first embodiment of this application.

[0059] Figure 2 This is an exploded view of the relay according to the first embodiment of this application.

[0060] Figure 3 It is along Figure 1The cross-sectional view after being cut by the AA section line, in which both the first moving component and the second moving component are in the disconnected state.

[0061] Figure 4 It is an exploded schematic diagram of the first moving magnetic conductor, the second moving magnetic conductor, the second stationary magnetic conductor, and the first elastic element.

[0062] Figure 5 yes Figure 3 A magnified view of part of X1.

[0063] Figure 6 It is along Figure 1 The cross-sectional view after being cut by the BB section line shows that the first moving contact of the first moving component is just in contact with the first stationary contact, and the second moving component is in the disconnected state.

[0064] Figure 7 It is along Figure 1 The cross-sectional view after being cut by the BB section line shows that the first moving magnetic conductor of the first moving component is in contact with the first stationary magnetic conductor, and the second moving component is in the disconnected state. Detailed Implementation

[0065] 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.

[0066] 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.

[0067] like Figure 1 and Figure 2 As shown, the relay in this embodiment includes a housing 10, an insulating cover 20, a first stationary magnetic conductor 30, a moving assembly 40, and a stationary contact assembly 50. The insulating cover 20, the first stationary magnetic conductor 30, and the moving assembly 40 are all disposed within the housing 10, with the insulating cover 20 connected to one side surface of the first stationary magnetic conductor 30. The stationary contact assembly 50 is mounted on the insulating cover 20. The moving assembly 40 is used to contact or separate from the stationary contact assembly 50 and is configured to switch the relay between a first state and a second state in response to an input signal.

[0068] In one embodiment, one of the first state and the second state is a relay-controlled external circuit in parallel, and the other of the first state and the second state is a relay-controlled external circuit in series.

[0069] Of course, in other embodiments, one of the first state and the second state is that the relay is in a closed state, and the other of the first state and the second state is that the relay is in an open state.

[0070] In another embodiment, when the relay is in a first state, the moving component 40 is in contact with a portion of the stationary contact component 50; when the relay is in a second state, the moving component 40 is in contact with another portion of the stationary contact component 50.

[0071] The following explanation will take the example of an external circuit controlled by a relay in parallel in the first state and in series in the second state.

[0072] As an example, the outer casing 10 may include a first casing 11 and a second casing 12, which are connected to form a cavity for accommodating the insulating cover 20, the first static magnetic conductor 30, and the moving assembly 40. The shape of the first casing 11 and the second casing 12 connected together can be a cuboid, a cylinder, etc. In the embodiments of this application, the first casing 11 and the second casing 12 are connected to form a hollow cuboid, but this is not a limitation.

[0073] In one embodiment, both the first shell 11 and the second shell 12 are rectangular parallelepipeds and each has an opening on one side. The opening of the first shell 11 is opposite to the opening of the second shell 12, and the first shell 11 and the second shell 12 are fastened together to form a cavity for accommodating the insulating cover 20, the first static magnetic conductor 30, and the moving component 40.

[0074] Of course, in other embodiments, the first shell 11 can be a flat plate structure, and the second shell 12 can be a cuboid shape with an opening, forming a cavity after the first shell 11 and the second shell 12 are fastened together.

[0075] like Figure 2 and Figure 3 As shown, the first stationary magnetic conductor 30 is a yoke plate 31, which has a first through hole 311 and a third through hole 312. The first through hole 311 and the third through hole 312 penetrate the yoke plate 31 along its thickness direction. An insulating cover 20 is connected to one side surface of the yoke plate 31 along its thickness direction and covers the first through hole 311 and the third through hole 312. The insulating cover 20 and the yoke plate 31 form a contact chamber 23, which communicates with the first through hole 311 and the third through hole 312.

[0076] As an example, the insulating cover 20 includes a ceramic cover 21 and a frame plate 22. The ceramic cover 21 is made of ceramic material and is connected to the yoke plate 31 via the frame plate 22. The frame plate 22 can be a ring-shaped metal component, for example, made of an iron-nickel alloy. One end of the frame plate 22 is connected to the opening edge of the ceramic cover 21, for example, by laser welding, brazing, resistance welding, or adhesive bonding. The other end of the frame plate 22 is connected to the yoke plate 31, for example, by laser welding, brazing, resistance welding, or adhesive bonding.

[0077] like Figure 2 and Figure 3 As shown, the static contact assembly 50 includes a plurality of first static contacts 41 and a plurality of second static contacts 51, which are mounted on the ceramic cover 21. In one embodiment, the ceramic cover 21 has a plurality of first mounting holes 211, and the plurality of first static contacts 41 are respectively inserted into the plurality of first mounting holes 211 and connected to the ceramic cover 21 by welding. The following description uses an example where the number of first static contacts 41 is two. In one embodiment, the ceramic cover 21 has a plurality of second mounting holes 212, and the plurality of second static contacts 51 are inserted into the plurality of second mounting holes 212 and connected to the ceramic cover 21 by welding.

[0078] The moving assembly 40 includes a first moving assembly 42 and a second moving assembly 52. ​​The first moving assembly 42 is movably disposed within a first through hole 311, and the second moving assembly 52 is movably disposed within a third through hole 312. The first moving assembly 42 is used to contact or separate from a plurality of first stationary contacts 41 and a plurality of second stationary contacts 51, and the second moving assembly 52 is used to contact or separate from a plurality of second stationary contacts 51.

[0079] In one embodiment, the first static contact 41 may be cylindrical in shape, but is not limited thereto.

[0080] Please continue reading. Figure 2 and Figure 3 The first moving assembly 42 includes a plurality of first moving contacts 421 and a first push rod member 422. The first push rod member 422 is movably disposed within the first through hole 311, and the plurality of first moving contacts 421 are located within the contact chamber 23 and mounted on the first push rod member 422. The plurality of first moving contacts 421 are located on the side of the first stationary magnetic conductor 30 facing the first stationary contact 41, and are located between the first stationary magnetic conductor 30 and the plurality of first stationary contacts 41. The first push rod member 422 can drive the plurality of first moving contacts 421 to move, so that the plurality of first moving contacts 421 contact or separate from the plurality of first stationary contacts 41 and the plurality of second stationary contacts 51, respectively.

[0081] It should be noted that the number of first moving contacts 421 is the same as the number of first stationary contacts 41, and the number of first moving contacts 421 is the same as the number of second stationary contacts 51. The following explanation will be based on the example where there are two first moving contacts 421, two first stationary contacts 41, and two second stationary contacts 51. One end of each of the two first moving contacts 421 is used to contact or separate from the two first stationary contacts 41, respectively, and the other end of each of the two first moving contacts 421 is used to contact or separate from the two second stationary contacts 51, respectively.

[0082] Furthermore, each first moving contact 421 may include one or more moving contacts. When the first moving contact 421 includes multiple moving contacts, the multiple moving contacts are arranged side by side. And when the two ends of the multiple moving contacts are in contact with the first stationary contact 41 and the second stationary contact 51 respectively, the multiple moving contacts form a parallel circuit.

[0083] like Figure 3 and Figure 4 As shown, the relay also includes a first moving magnetic element 43, a second stationary magnetic element 44, and a second moving magnetic element 45. The first moving magnetic element 43 is located on the side of the first stationary magnetic element 30 facing away from the first stationary contact 41 and is fixedly connected to the first push rod member 422. The first moving magnetic element 43 is movable relative to the first stationary magnetic element 30. When the relay is in the first state, the first moving magnetic element 43 is in contact with the first stationary magnetic element 30. The second stationary magnetic element 44 is located on the side of the first moving magnetic element 43 facing away from the first stationary magnetic element 30 and is fixedly disposed relative to the first stationary magnetic element 30. The second moving magnetic element 45 is located on the side of the first moving magnetic element 43 facing away from the first stationary magnetic element 30 and is movable relative to the first stationary magnetic element 30 along the moving direction of the first moving magnetic element 43.

[0084] The relay of this application embodiment includes a first stationary magnetic body 30, a first moving magnetic body 43, a second stationary magnetic body 44, and a second moving magnetic body 45. The second moving magnetic body 45 is movable relative to the first stationary magnetic body 30 along the moving direction of the first moving magnetic body 43. Therefore, when assembling the relay, even if at least one of the first stationary magnetic body 30, the first moving magnetic body 43, the second stationary magnetic body 44, and the second moving magnetic body 45 has a processing error and / or assembly error in the moving direction of the first moving magnetic body 43, since the second moving magnetic body 45 is designed to be movable, the second moving magnetic body 45 can compensate for the above-mentioned processing error and / or assembly error by moving, thereby ensuring that the magnetic gap of the relay is maintained at a preset value and ensuring the normal operation of the relay.

[0085] It should be noted that the term "magnetic gap" refers to the distance between the first moving magnetic element 43 and the first stationary magnetic element 30 when the coil assembly of the relay is de-energized.

[0086] In one embodiment, when the relay is in the first state, the first moving magnetic material 43 is in contact with the first stationary magnetic material 30, and the first moving magnetic material 43 is separated from the second moving magnetic material 45; when the relay is in the second state, the first moving magnetic material 43 is in contact with the second moving magnetic material 45, and the first moving magnetic material 43 is separated from the first stationary magnetic material 30.

[0087] When the relay is in the second state, the first moving magnetic body 43 and the second moving magnetic body 45 are in direct contact. The magnetic field generated by the second moving magnetic body 45 will not be affected by the gap between the first moving magnetic body 43 and the second moving magnetic body 45, thereby ensuring the magnitude of the holding force provided by the second moving magnetic body 45.

[0088] In one embodiment, the relay further includes a first elastic element 46 configured to provide an elastic force to the second moving magnet 45, such that the second moving magnet 45 tends to move toward the first moving magnet 43.

[0089] In one embodiment, the first elastic element 46 is located between the second stationary magnet 44 and the second moving magnet 45.

[0090] Furthermore, one end of the first elastic element abuts against the second static magnetic conductor 44, and the other end abuts against the second dynamic magnetic conductor 45.

[0091] like Figure 3 As shown, the relay also includes a first metal housing 48, which is connected to the surface of the first stationary magnet 30 facing away from the first stationary contact 41, and the internal space of the first metal housing 48 communicates with the first through hole 311. A first moving magnet 43 and a second moving magnet 45 are movably located within the first metal housing 48, and a second stationary magnet 44 is fixedly connected to the first metal housing 48, with at least a portion of the second stationary magnet 44 located within the first metal housing 48. The first metal housing 48 has a second through hole 481, and the second stationary magnet 44 is fixedly connected to the first metal housing 48, sealing the second through hole 481.

[0092] In this embodiment, the relay further includes a first metal shell 48, which is connected to the side surface of the first stationary magnet 30 facing away from the first stationary contact 41. The second stationary magnet 44 is fixedly connected to the first metal shell 48 and seals the second through hole 481. Thus, the interior of the first metal shell 48 and the contact chamber 23 formed by the insulating cover 20 and the first stationary magnet 30 form a sealed chamber, which allows the contact chamber 23 to be filled with arc-extinguishing gas, thereby increasing the speed at which the arc is extinguished when the first moving contact 421 contacts or separates from the first stationary contact 41.

[0093] like Figure 3As shown, the relay also includes a second elastic element 47, which is located between the first stationary magnetic conductor 30 and the first moving magnetic conductor 43, and is used to provide an elastic force to the first moving magnetic conductor 43 to move toward the second moving magnetic conductor 45.

[0094] In the embodiments of this application, the second elastic element 47 can provide the first moving magnetic body 43 with an elastic force that moves it toward the second moving magnetic body 45. When the relay switches from the first state to the second state, the second elastic element 47 provides initial kinetic energy to the first moving magnetic body 43 to a certain extent, thereby improving the switching response time of the relay.

[0095] In one embodiment, the first moving magnetic conductor 43 is provided with a receiving groove 431 on the side facing the first stationary magnetic conductor 30, and at least a portion of the second elastic member 47 is located in the receiving groove 431.

[0096] In this embodiment of the application, by providing a receiving groove 431 on the side of the first moving magnetic conductor 43 facing the first stationary magnetic conductor 30, and at least a portion of the second elastic member 47 is located in the receiving groove 431, the space occupied by the second elastic member 47 in the direction of movement of the first moving component 42 can be reduced, which is beneficial to achieving product miniaturization design.

[0097] In one embodiment, when the relay is in the second state, the first elastic element 46 has a first deformation, which is greater than zero. When the first moving magnetic body 43 separates from the second moving magnetic body 45, the first elastic element 46 is in its original length state or is compressed by the second moving magnetic body 45 and has a second deformation; wherein, when the first elastic element 46 has a second deformation, the first deformation is greater than the second deformation.

[0098] In this embodiment, when the first moving magnetic material 43 and the second moving magnetic material 45 separate, the second moving magnetic material 45 compresses the first elastic element 46, causing the first elastic element 46 to have a second deformation. The second deformation is greater than zero, meaning the first elastic element 46 is in a pre-compressed state between the second moving magnetic material 45 and the second stationary magnetic material 44. When the first moving magnetic material 43 and the second moving magnetic material 45 separate, because the first elastic element 46 is in a pre-compressed state, the first elastic element 46 can be stably positioned between the second moving magnetic material 45 and the second stationary magnetic material 44, preventing the first elastic element 46 from shaking and producing an impact sound.

[0099] In one embodiment, the relay further includes a stop structure configured to stop the second moving magnet 45 from moving toward the first stationary magnet 30 when the first moving magnet 43 is separated from the second moving magnet 45.

[0100] In one implementation, such as Figure 4 and Figure 5As shown, the stop structure includes a first stop portion 451 and a second stop portion 4421. The second moving magnetic conductor 45 has the first stop portion 451, and the second stationary magnetic conductor 44 has the second stop portion 4421. The first stop portion 451 is located on the side of the second stop portion 4421 that is away from the first stationary magnetic conductor 30. The second stop portion 4421 is configured to stop the first stop portion 451 from moving toward the first stationary magnetic conductor 30 when the first moving magnetic conductor 43 is separated from the second moving magnetic conductor 45.

[0101] In this embodiment, the second moving magnetic material 45 tends to move towards the first stationary magnetic material 30 under the elastic force of the first elastic member 46. A first stop 451 is provided on the second moving magnetic material 45, and a second stop 4421 is provided on the second stationary magnetic material 44. The first stop 451 is located on the side of the second stop 4421 facing away from the first stationary magnetic material 30. When the first moving magnetic material 43 separates from the second moving magnetic material 45, the second stop 4421 can prevent the first stop 451 from moving towards the first stationary magnetic material 30. In other words, when the first moving magnetic material 43 separates from the second moving magnetic material 45, the second moving magnetic material 45 can be stably arranged under the combined action of the second stop 4421 and the first elastic member 46, preventing the second moving magnetic material 45 from shaking.

[0102] like Figure 3 and Figure 5 As shown, when the relay is in the second state, there is a gap G between the second stop portion 4421 and the first stop portion 451. Specifically, during the relay's transition from the first state to the second state, the first moving magnetic element 43 gradually approaches the second moving magnetic element 45. When the first moving magnetic element 43 contacts the second moving magnetic element 45, the first moving magnetic element 43 does not stop moving but continues to move downwards until a gap G is formed between the second stop portion 4421 and the first stop portion 451. That is, during the process of the first moving magnetic element 43 and the second moving magnetic element 45 just making contact and continuing to move, the first moving magnetic element 43 drives the second moving magnetic element 45 to compress the first elastic element 46, causing the first elastic element 46 to deform under pressure.

[0103] In this embodiment, the first elastic element 46 provides an elastic force to the second moving magnet 45 when pressed by the second moving magnet 45. Since there is a gap G between the second stop 4421 and the first stop 451 when the relay is in the second state, the first elastic element 46 can act as a buffer when the first moving magnet 43 contacts the second moving magnet 45, converting the kinetic energy of the first moving magnet 43 into the elastic potential energy of the first elastic element 46. This reduces the force of the first moving magnet 43 impacting the second moving magnet 45, thus reducing noise. Furthermore, when the relay is in the second state, the first elastic element 46 provides an elastic force to the second moving magnet 45, providing initial kinetic energy to the second moving magnet 45 to a certain extent. When the relay switches from the second state to the first state, the elastic force of the first elastic element 46 on the second moving magnet 45 reduces the time from when the relay coil is energized to when the second moving magnet 45 begins to move, improving the relay's switching response time.

[0104] Furthermore, as mentioned above, when the first moving magnetic conductor 43 and the second moving magnetic conductor 45 come into contact, the first elastic element 46 can play a buffering role, thereby reducing the force of the first moving magnetic conductor 43 impacting the second moving magnetic conductor 45, avoiding the problem of the second static magnetic conductor 44 and the first metal shell 48 being loosely connected due to the continuous impact of the first moving magnetic conductor 43, and thus avoiding the first metal shell 48 from leaking air.

[0105] Of course, in another embodiment, when the relay is in the second state, the second stop portion 4421 is in contact with the first stop portion 451. Specifically, during the relay's transition from the first state to the second state, the first moving magnetic element 43 gradually approaches the second moving magnetic element 45. When the first moving magnetic element 43 and the second moving magnetic element 45 just make contact, the relay is in the second state, meaning the first moving magnetic element 43 will not continue to move downwards. At this time, the second moving magnetic element 45 will not further compress the first elastic element 46.

[0106] like Figure 4 As shown, the second stationary magnetic conductor 44 includes a magnetic post 441 and a retaining ring 442. The magnetic post 441 is located on the side of the first movable magnetic conductor 43 facing away from the first stationary magnetic conductor 30 and passes through the second through hole 481. The retaining ring 442 is fixedly connected to the end of the magnetic post 441 near the first movable magnetic conductor 43, and the outer periphery of the retaining ring 442 has a second stop portion 4421. The second movable magnetic conductor 45 has a cylindrical structure and is movably sleeved on at least a portion of the magnetic post 441.

[0107] The outer peripheral side of the magnetic post 441 has a first step 4411 and a second step 4412. The first step 4411 is closer to the first moving magnetic body 43 than the second step 4412. The retaining ring 442 is connected to the first step 4411. The first stop part 451 is located between the second stop part 4421 and the tread of the second step 4412. One end of the first elastic member 46 abuts against the tread of the second step 4412, and the other end abuts against the first stop part 451.

[0108] In one embodiment, the magnetic post 441 includes a first cylinder 441a, a second cylinder 441b, and a third cylinder 441c arranged coaxially. The second cylinder 441b is connected between the first cylinder 441a and the third cylinder 441c. The bottom radius of the first cylinder 441a is smaller than the bottom radius of the second cylinder 441b, which is smaller than the bottom radius of the third cylinder 441c. That is, the bottom radius of the first cylinder 441a is smaller than the bottom radius of the second cylinder 441b, and the bottom radius of the second cylinder 441b is smaller than the bottom radius of the third cylinder 441c.

[0109] The outer peripheral side of the first cylinder 441a and the top surface of the second cylinder 441b form a first step 4411, and the outer peripheral side of the second cylinder 441b and the top surface of the third cylinder 441c form a second step 4412. A retaining ring 442 is fixedly fitted onto the outer periphery of the first cylinder 441a.

[0110] In one embodiment, the first stop portion 451 is annular and is movably fitted onto the outer periphery of the second cylinder 441b.

[0111] like Figure 3 and Figure 4 As shown, the second stationary magnetic conductor 44 further includes a flange 443, which is located inside the first metal shell 48 and connected to the outer peripheral side of the magnetic post 441. In this embodiment, the flange 443 surrounds the outer periphery of the third cylinder 441c.

[0112] The first metal shell 48 includes a sleeve 482 and an annular flange 483. One end of the sleeve 482 is connected to the first static magnetic conductor 30, and the annular flange 483 is connected to the other end of the sleeve 482. The annular flange 483 is folded inward into the sleeve 482 and forms a second through hole 481. The flange 443 is attached to the annular flange 483.

[0113] In one embodiment, the second moving magnet 45 surrounds at least a portion of the second stationary magnet 44; or, the second stationary magnet 44 surrounds at least a portion of the second moving magnet 45, that is, in the direction of movement perpendicular to the second moving magnet, a portion of the structure of the second stationary magnet 44 coincides with a portion of the structure of the second moving magnet 45, such that magnetic lines of force can be conducted between the sidewall of the second stationary magnet 44 and the sidewall of the second moving magnet 45.

[0114] like Figure 3 and Figure 4 As shown, the relay also includes a yoke 70c, which is located on the side of the first metal housing 48 facing away from the first static magnet 30.

[0115] The second static magnetic conductor 44 includes a protrusion 444, which protrudes from the surface of the third cylinder 441c facing away from the second cylinder 441b. Furthermore, the protrusion 444 extends through the second through hole 481 from the outer surface of the first metal shell 48 and is fixedly connected to the yoke 70c.

[0116] In one embodiment, the yoke 70c has a fourth through hole 71, and the protrusion 444 is inserted into the fourth through hole 71.

[0117] like Figure 3 As shown, the relay also includes a first coil assembly 70a, which surrounds the second stationary magnet 44. The first coil assembly 70a is configured to drive the first moving magnet 43 to move in response to a first input signal. The first moving magnet 43 can drive the first moving assembly 42 to move.

[0118] like Figure 3 As shown, the relay also includes a first magnetic holding assembly 60a, which includes a first permanent magnet 61 located around a first moving magnetic conductor 43. The first permanent magnet 61 is configured to hold the first moving magnetic conductor 43 in the position before the first coil assembly 70a is de-energized. The first coil assembly 70a is located on the side of the first magnetic holding assembly 60a facing away from the first stationary magnetic conductor 30. It should be added that, in a modified embodiment, the first stationary magnetic conductor 30 may further include a yoke plate 31 and a sub-magnetic conductor (not shown in the figure). The first stationary contact 41 and the first moving contact 421 are located on one side of the thickness direction of the yoke plate 31, and the sub-magnetic conductor, the first moving magnetic conductor 43, the second moving magnetic conductor 45, and the second stationary magnetic conductor 44 are located on the other side of the thickness direction of the yoke plate 31. The sub-magnetic conductor is fixedly connected to the yoke plate 31; wherein, when the relay is in the first state, the first moving magnetic conductor 43 is in contact with the sub-magnetic conductor.

[0119] Please return to the reference. Figure 2 and Figure 3 As shown, the second moving component 52 is movably disposed within the third through hole 312 for contacting or separating from the plurality of second stationary contacts 51. The following explanation will take two second stationary contacts 51 as an example.

[0120] like Figure 2 and Figure 3As shown, the second moving assembly 52 includes one or more second moving contacts 521 and a second push rod member 522. The second push rod member 522 is movably disposed within the third through hole 312. The second moving contacts 521 are located within the contact chamber 23 and are mounted on the second push rod member 522. The second moving contacts 521 are located on the side of the first stationary magnetic conductor 30 facing the second stationary contacts 51, and are located between the first stationary magnetic conductor 30 and the plurality of second stationary contacts 51. The second push rod member 522 can drive the second moving contacts 521 to move, so that the second moving contacts 521 contact or separate from the plurality of second stationary contacts 51. When there is one second moving contact 521, both ends of the second moving contact 521 in the length direction are used to contact or separate from two second stationary contact 51 respectively; when there are multiple second moving contact 521, the multiple second moving contact 521 are arranged side by side, and one end of the multiple second moving contact 521 is used to contact or separate from one of the second stationary contact 51, and the other end of the multiple second moving contact 521 is used to contact or separate from another second stationary contact 51.

[0121] like Figure 2 As shown, each second stationary contact 51 includes a stationary component 511 and a conductive portion 512. The stationary component 511 passes through the second mounting hole 212 and is welded to the ceramic cover 21. The conductive portion 512 is located in the contact chamber 23 and is connected to the stationary component 511. The second moving contact 521 is used to contact and separate from the conductive portion 512 or the stationary component 511, and the first moving contact 421 is used to contact or separate from the conductive portion 512.

[0122] like Figure 2 As shown, when the external circuit controlled by the relay is in series, the two ends of the second moving contact 521 of the second moving assembly 52 along its length are in contact with the two second stationary contacts 51, while the first moving contact 421 of the first moving assembly 42 is separated from the first stationary contact 41. When the external circuit controlled by the relay is in parallel, one end of each of the two first moving contacts 421 is in contact with the two first stationary contacts 41, and the other end of each of the two first moving contacts 421 is in contact with the conductive portion 512 of each of the two second stationary contacts 51, and the second moving contact 521 is separated from the second stationary contact 51.

[0123] In one embodiment, the stationary component 511 and the conductive component 512 can be an integral structure or separate structures. When the stationary component 511 and the conductive component 512 are separate structures, the stationary component 511 and the conductive component 512 can be connected by riveting, welding or other methods, and this application does not make any particular limitation on this.

[0124] In one embodiment, the conductive part 512 is connected to the side surface of the stationary part 511 facing the yoke plate 31.

[0125] Of course, in other embodiments, the conductive part 512 may also be connected to the outer peripheral side of the stationary part 511. When the external circuit controlled by the relay is in series, the second moving contact 521 contacts the stationary part 511 of the second stationary contact 51; when the external circuit controlled by the relay is in parallel, one end of each of the two first moving contacts 421 contacts the conductive part 512 of each of the two second stationary contacts 51, and the other end of each of the two first moving contacts 421 contacts the two first stationary contacts 41.

[0126] It should be noted that the switching between parallel and series states of the external circuit controlled by the relay is not limited to the structure of the first moving component 42 and the second moving component 52 described above. For example, in other embodiments, the first moving contact 421 and the second moving contact 521 are mounted on the same push rod member, and the movement of the push rod member drives the first moving contact 421 and the second moving contact 521 to move.

[0127] like Figure 3 , Figure 6 and Figure 7 As shown, the relay also includes a second metal housing 58, a third stationary magnetic conductor 54, a third moving magnetic conductor 55, and a third elastic element 56. The second metal housing 58 is connected to the surface of the first stationary magnetic conductor 30 facing away from the second stationary contact member 51 and covers a third through hole 312. The third moving magnetic conductor 55 is located inside the second metal housing 58 and is fixedly connected to the second push rod member 522. The third elastic element 56 is connected to the third moving magnetic conductor 55 and the first stationary magnetic conductor 30, and provides an elastic force to the third moving magnetic conductor 55 to move away from the first stationary magnetic conductor 30. The third stationary magnetic conductor 54 is located outside the second metal housing 58 and is arranged opposite to the third moving magnetic conductor 55 in the direction of movement of the second push rod member 522.

[0128] It should be noted that the third static magnetic conductor 54 and the third dynamic magnetic conductor 55 can also be replaced by the first dynamic magnetic conductor 43, the second static magnetic conductor 44, the second dynamic magnetic conductor 45 and the first elastic element 46.

[0129] like Figure 3 As shown, the relay also includes a second coil assembly 70b, which surrounds the third stationary magnet 54. The second coil assembly 70b is configured to drive the third moving magnet 55 to move in response to a second input signal. The third moving magnet 55 can drive the second moving assembly 52 to move.

[0130] The relay also includes a second magnetic holding assembly 60b, which includes a second permanent magnet 62 located around a third moving magnetic conductor 55. The second permanent magnet 62 is configured to hold the third moving magnetic conductor 55 in the position before the second coil assembly 70b is de-energized. The second coil assembly 70b is located on the side of the second magnetic holding assembly 60b opposite to the first stationary magnetic conductor 30.

[0131] In one embodiment, the first static magnetic conductor 30, the first moving magnetic conductor 43, the second static magnetic conductor 44, the second moving magnetic conductor 45, the third static magnetic conductor 54, the third moving magnetic conductor 55, and the yoke 70c are all made of magnetically conductive material. The magnetically conductive material can be, but is not limited to, iron, silicon steel, soft magnetic alloys, etc.

[0132] In summary, the relays of the embodiments of this application have at least the following advantages and beneficial effects:

[0133] The relay of this application embodiment includes a first stationary magnetic body 30, a first moving magnetic body 43, a second stationary magnetic body 44, and a second moving magnetic body 45. The second moving magnetic body 45 is movable relative to the first stationary magnetic body 30 along the moving direction of the first moving magnetic body 43. Therefore, when assembling the relay, even if at least one of the first stationary magnetic body 30, the first moving magnetic body 43, the second stationary magnetic body 44, and the second moving magnetic body 45 has a processing error and / or assembly error in the moving direction of the first moving magnetic body 43, since the second moving magnetic body 45 is designed to be movable, the second moving magnetic body 45 can compensate for the above-mentioned processing error and / or assembly error by moving, thereby ensuring that the magnetic gap of the relay is maintained at a preset value and ensuring the normal operation of the relay.

[0134] Furthermore, when the relay is in the second state, the first moving magnetic body 43 is in contact with the second moving magnetic body 45. The magnetic field generated by the second moving magnetic body 45 will not be affected by the gap between the first moving magnetic body 43 and the second moving magnetic body 45, thereby ensuring the magnitude of the holding force provided by the second moving magnetic body 45.

[0135] Furthermore, the relay also includes a first elastic element 46, which is configured to provide an elastic force to the second moving magnet 45, causing the second moving magnet 45 to tend to move closer to the first moving magnet 43. When the first elastic element 46 is compressed by the second moving magnet 45, it can provide an elastic force to the second moving magnet 45, so that after the first moving magnet 43 contacts the second moving magnet 45, the first elastic element 46 can act as a buffer, converting the kinetic energy of the first moving magnet 43 into the elastic potential energy of the first elastic element 46, reducing the force of the first moving magnet 43 impacting the second moving magnet 45, and achieving the effect of reducing noise. In addition, when the relay is in the second state, the first elastic element 46 provides an elastic force to the second moving magnet 45, which to some extent provides initial kinetic energy to the second moving magnet 45. When the relay switches from the second state to the first state, the second moving magnetic body 45 is subjected to the elastic force of the first elastic element 46, which reduces the time from when the relay coil is energized and stores energy to when the second moving magnetic body 45 begins to move, thereby improving the relay's switching response time.

[0136] Furthermore, the relay also includes a first metal shell 48, which is connected to the surface of the first stationary magnet 30 facing away from the first stationary contact 41. The second stationary magnet 44 is fixedly connected to the first metal shell 48 and seals the second through hole 481. On one hand, since the second moving magnet 45 is movable relative to the first stationary magnet 30, it can reduce the impact force exerted by the first moving magnet 43 on the second stationary magnet 44, thereby ensuring the reliability of the connection between the second stationary magnet 44 and the first metal shell 48. On the other hand, the interior of the first metal shell 48 and the contact chamber 23 formed by the insulating cover 20 and the first stationary magnet 30 both form sealed chambers, allowing the contact chamber 23 to be filled with arc-extinguishing gas, thus increasing the speed at which the arc is extinguished when the first moving component contacts or separates from the first stationary contact 41. In addition, when the first moving magnetic conductor 43 comes into contact with the second moving magnetic conductor 45, the first elastic element 46 can play a buffering role, thereby reducing the force of the first moving magnetic conductor 43 impacting the second moving magnetic conductor 45, avoiding the problem of the second static magnetic conductor 44 and the first metal shell 48 being loosely connected due to continuous impact, and thus avoiding the first metal shell 48 from leaking air.

[0137] Furthermore, under the elastic force of the first elastic member 46, the second moving magnetic conductor 45 tends to move towards the first stationary magnetic conductor 30. A first stop portion 451 is provided on the second moving magnetic conductor 45, and a second stop portion 4421 is provided on the second stationary magnetic conductor 44, with the first stop portion 451 located on the side of the second stop portion 4421 facing away from the first stationary magnetic conductor 30. When the first moving magnetic conductor 43 separates from the second moving magnetic conductor 45, the second stop portion 4421 can prevent the first stop portion 451 from moving towards the first stationary magnetic conductor 30, thus preventing the second moving magnetic conductor 45 and the first moving magnetic conductor 43 from moving together. The advantages of setting the first stop 451 and the second stop 4421 are as follows: Firstly, during the relay switching from the first state to the second state, it prevents the second moving magnet 45 from displacing a long distance relative to the second stationary magnet 44, thereby preventing the second moving magnet 45 and the second stationary magnet 44 from jamming. Secondly, increasing the gap between the second moving magnet 45 and the second stationary magnet 44 would affect the magnetic efficiency between them. Furthermore, the simultaneous movement of the first moving magnet 43 and the second moving magnet 45 results in a heavier weight, which would increase power consumption. In addition, when the first moving magnet 43 and the second moving magnet 45 separate, the second moving magnet 45 can be stably arranged under the combined action of the second stop 4421 and the first elastic member 46, preventing wobbling.

[0138] Furthermore, the second elastic element 47 can provide the first moving magnetic body 43 with an elastic force that moves it toward the second moving magnetic body 45. When the relay switches from the first state to the second state, the second elastic element 47 provides initial kinetic energy to the first moving magnetic body 43 to a certain extent, thereby improving the switching response time of the relay.

[0139] Furthermore, by providing a receiving groove 431 on the side of the first moving magnetic conductor 43 facing the first stationary magnetic conductor 30, and at least a portion of the second elastic member 47 being located within the receiving groove 431, the space occupied by the second elastic member 47 in the direction of movement of the first moving assembly 42 can be reduced, which is beneficial for achieving product miniaturization design.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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: First static magnet; The first moving magnetic conductor is movable relative to the first stationary magnetic conductor; The second moving magnetic conductor is located on the side of the first moving magnetic conductor that is opposite to the first stationary magnetic conductor, and is movable relative to the first stationary magnetic conductor along the moving direction of the first moving magnetic conductor. as well as The second stationary magnet is located on the side of the first moving magnet that faces away from the first stationary magnet, and is fixedly disposed relative to the first stationary magnet.

2. The relay according to claim 1, characterized in that, The relay also includes: A first elastic element is configured to provide an elastic force to the second moving magnet, causing the second moving magnet to tend to move toward the first moving magnet.

3. The relay according to claim 2, characterized in that, The first elastic element is located between the second static magnetic conductor and the second dynamic magnetic conductor.

4. The relay according to claim 3, characterized in that, One end of the first elastic element abuts against the second moving magnetic conductor, and the other end abuts against the second stationary magnetic conductor.

5. The relay according to claim 2, characterized in that, The relay also includes a moving component fixedly connected to the first moving magnetic conductor, the moving component being configured to move relative to the first stationary magnetic conductor in response to an input signal, so as to switch the relay between a first state and a second state; When the relay is in the first state, the first moving magnetic conductor is in contact with the first stationary magnetic conductor, and the first moving magnetic conductor is separated from the second moving magnetic conductor. When the relay is in the second state, the first moving magnetic material is in contact with the second moving magnetic material, and the first moving magnetic material is separated from the first stationary magnetic material.

6. The relay according to claim 5, characterized in that, When the relay is in the second state, the first elastic element has a first deformation, which is greater than zero.

7. The relay according to claim 6, characterized in that, When the first moving magnetic conductor separates from the second moving magnetic conductor, the first elastic element is in its original length state or has a second deformation due to being squeezed by the second moving magnetic conductor; Wherein, when the first elastic element has the second deformation, the first deformation is greater than the second deformation.

8. The relay according to any one of claims 1-7, characterized in that, The relay further includes a stop structure configured to stop the second moving magnetic element from moving toward the first stationary magnetic element when the first moving magnetic element is separated from the second moving magnetic element.

9. The relay according to claim 8, characterized in that, The stop structure includes a first stop portion and a second stop portion. The second moving magnetic conductor has the first stop portion, and the second stationary magnetic conductor has the second stop portion. The second stop portion is configured to stop the first stop portion from moving toward the first stationary magnetic conductor when the first moving magnetic conductor is separated from the second moving magnetic conductor.

10. The relay according to claim 9, characterized in that, The first stop portion is located on the side of the second stop portion that faces away from the first stationary magnet.

11. The relay according to claim 9, characterized in that, The relay also includes a moving component configured to move relative to the first stationary magnet in response to an input signal, so as to switch the relay between a first state and a second state; When the relay is in the second state, the first moving magnetic material is in contact with the second moving magnetic material, and the first moving magnetic material is separated from the first stationary magnetic material; When the relay is in the second state, there is a gap between the second stop portion and the first stop portion, or the second stop portion is in contact with the first stop portion.

12. The relay according to claim 9, characterized in that, The second stationary magnetic conductor includes a magnetic post and a retaining ring. The magnetic post is located on the side of the first moving magnetic conductor facing away from the first stationary magnetic conductor. The retaining ring is fixedly connected to one end of the magnetic post near the first moving magnetic conductor, and the outer periphery of the retaining ring has a second stop portion. The second moving magnetic conductor has a cylindrical structure and is movably sleeved on at least a portion of the magnetic post.

13. The relay according to claim 12, characterized in that, The outer peripheral side of the magnetic post has a first step and a second step, the first step being closer to the first moving magnetic body than the second step, and the retaining ring being connected to the first step; The first stop is located between the second stop and the tread of the second step.

14. The relay according to claim 13, characterized in that, The relay further includes a first elastic element configured to provide an elastic force to the second moving magnetic conductor, so that the second moving magnetic conductor has the ability to move in a direction closer to the first moving magnetic conductor; One end of the first elastic member abuts against the tread surface of the second step, and the other end abuts against the first stop.

15. The relay according to any one of claims 1-7, characterized in that, The first static magnetic conductor has a through hole; The relay further includes a first metal shell, which is connected to the side surface of the first stationary magnetic conductor facing the first moving magnetic conductor, and the internal space of the first metal shell is in communication with the first through hole; the first moving magnetic conductor and the second moving magnetic conductor are movably located inside the first metal shell, the second stationary magnetic conductor is fixedly connected to the first metal shell, and at least a portion of the second moving magnetic conductor is located inside the first metal shell.

16. The relay according to claim 15, characterized in that, The first metal shell has a second through hole, and the second static magnetic conductor is fixedly connected to the first metal shell and seals the second through hole.

17. The relay according to claim 16, characterized in that, The second static magnetic conductor includes a magnetic post and a flange. The magnetic post passes through the second through hole, and the flange is located inside the first metal shell and connected to the outer peripheral side of the magnetic post. The first metal shell includes a sleeve and an annular flange. One end of the sleeve is connected to the first static magnetic conductor, and the annular flange is connected to the other end of the sleeve. The annular flange is folded inward into the sleeve and forms the second through hole. The flange is attached to the annular flange.

18. The relay according to claim 16, characterized in that, The relay also includes a yoke, which is located on the side of the first metal shell facing away from the first static magnetic material. The second static magnetic conductor includes a protrusion that extends out of the outer surface of the first metal shell through the second through hole and is connected to the yoke.

19. The relay according to claim 18, characterized in that, The yoke has a fourth through hole, and the protruding part is inserted into the fourth through hole.

20. The relay according to any one of claims 1-7, characterized in that, The relay further includes a first magnetic holding assembly, which includes a first permanent magnet located around the first moving conductor magnet.

21. The relay according to claim 20, characterized in that, The relay further includes a first coil assembly that surrounds the second stationary magnet; the first coil assembly is located on the side of the first magnetic holding assembly opposite to the first stationary magnet.

22. The relay according to any one of claims 1-7, characterized in that, The second moving magnetic conductor surrounds at least a portion of the second stationary magnetic conductor; or, the second stationary magnetic conductor surrounds at least a portion of the second moving magnetic conductor.

23. The relay according to any one of claims 1-7, characterized in that, The first static magnetic conductor includes a yoke plate and a sub-magnetic conductor. The sub-magnetic conductor, the first moving magnetic conductor, the second moving magnetic conductor, and the second static magnetic conductor are located on one side of the thickness direction of the yoke plate. The sub-magnetic conductor is fixedly connected to the yoke plate. The first moving magnetic conductor is used to contact the sub-magnetic conductor.

24. The relay according to any one of claims 1-7, characterized in that, The relay further includes a second elastic element connected to the first stationary magnet and the first moving magnet, for providing an elastic force to the first moving magnet to move toward the second moving magnet.

25. The relay according to claim 24, characterized in that, The first moving magnetic conductor has a receiving groove on the side facing the first stationary magnetic conductor, and at least a portion of the second elastic member is located in the receiving groove.

26. The relay according to claim 1, characterized in that, The relay also includes a moving component fixedly connected to the first moving magnetic conductor, the moving component being configured to move relative to the first stationary magnetic conductor in response to an input signal, so as to switch the relay between a first state and a second state; When the relay is in the first state, the first moving magnetic conductor is in contact with the first stationary magnetic conductor, and the first moving magnetic conductor is separated from the second moving magnetic conductor. When the relay is in the second state, the first moving magnetic material is in contact with the second moving magnetic material, and the first moving magnetic material is separated from the first stationary magnetic material.

27. The relay according to claim 26, characterized in that, One of the first state and the second state is that the relay is in a closed state, and the other of the first state and the second state is that the relay is in an open state; or, In either the first state or the second state, the external circuit controlled by the relay is in parallel, and in the other state, the external circuit controlled by the relay is in series.

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