Relay

Abstract

Provided in the present disclosure is a relay, comprising a first contact portion, a second contact portion, and a driving portion. The first contact portion comprises a first movable spring strip, and a first movable contact, a first stressed member and a second stressed member, which are arranged on the first movable spring strip. The second contact portion comprises a first stationary contact. The driving portion is provided with a first driving member. The first driving member is located on the side of the first movable spring strip away from the first stationary contact and is configured to push the first stressed member to move such that the first movable contact comes into contact with the first stationary contact and to pull the second stressed member to move such that the first movable contact is separated from the first stationary contact. The stiffness of the first stressed member is less than the stiffness of the second stressed member, and during the process of the first driving member pushing the first stressed member, the first stressed member can deform to provide a contact pressure to the first movable contact and the first stationary contact.

Description

relay

[0001] This disclosure claims priority to Chinese Patent Application No. 202411803506.6, filed on December 09, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure 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] A magnetic latching relay, as one type of relay, includes two contact parts and a driving part. One contact part has a moving contact, and the other contact part has a stationary contact. The driving part has a push rod, which drives one of the contact parts to reciprocate, thereby causing the moving contact to contact or separate from the stationary contact.

[0005] When the moving contact and the stationary contact break apart, an electric arc is easily generated between them. As the arc lengthens, it can easily burn the push rod, causing deformation or damage to the end of the push rod. This affects the accuracy of the push rod's movement and may even prevent the relay from switching between the closed and open states, severely shortening the relay's service life. Summary of the Invention

[0006] This disclosure provides a relay to solve the problem of arc erosion of the push rod in the related art.

[0007] The relay of this disclosure embodiment includes:

[0008] The first contact portion includes a first movable spring, a first movable contact, a first force-receiving element, and a second force-receiving element disposed on the first movable spring;

[0009] The second contact portion includes the first stationary contact; and

[0010] The driving part has a first driving member, which is located on the side of the first moving spring facing away from the first stationary contact and is configured to push the first force-receiving member to move so that the first moving contact contacts the first stationary contact, and to pull the second force-receiving member to move so that the first moving contact separates from the first stationary contact.

[0011] Wherein, the stiffness of the first force-bearing member is less than that of the second force-bearing member, and during the process of the first driving member pushing the first force-bearing member, the first force-bearing member can deform to provide contact pressure to the first moving contact and the first stationary contact.

[0012] According to some embodiments of this disclosure, the second force-receiving member does not deform during the process of the first driving member pulling the second force-receiving member.

[0013] According to some embodiments of this disclosure, the second force-bearing member and the first movable spring are separate structures.

[0014] According to some embodiments of this disclosure, the stiffness of the second force-bearing member is greater than the stiffness of the first moving spring.

[0015] According to some embodiments of this disclosure, the second force-bearing member is riveted to the first movable spring.

[0016] According to some embodiments of this disclosure, the first moving contact is simultaneously riveted to the first moving spring and the second force-bearing member.

[0017] According to some embodiments of this disclosure, the second force-receiving member includes a connecting portion and a force-receiving portion. The connecting portion is disposed on the side of the first movable spring facing away from the first stationary contact and is riveted to the first movable spring. The force-receiving portion is connected to the connecting portion and protrudes from the surface of the connecting portion facing away from the first stationary contact. The first driving member is used to pull the force-receiving portion to separate the first movable contact from the first stationary contact.

[0018] According to some embodiments of this disclosure, the force-receiving part has a first segment and two second segments, the two second segments are arranged at intervals along the width direction of the first movable spring, and one end of each of the two second segments is connected to the connecting part, and the other end is respectively connected to both ends of the first segment.

[0019] The first driving member has a first pulling part located within a frame structure formed by the first segment and the two second segments, and is used to pull the first segment.

[0020] According to some embodiments of this disclosure, the first segment has a first convex arcuate surface on the side facing the first pulling part, and the first convex arcuate surface is used to contact the first pulling part and form a line contact.

[0021] According to some embodiments of this disclosure, the force-bearing part includes two tension parts spaced apart, and the tension parts are connected to the connecting part;

[0022] The first drive member has two second pulling parts, which are located on the side of the two tensioned parts facing the first moving spring, and are used to pull the two tensioned parts respectively.

[0023] According to some embodiments of this disclosure, the tension portion has a third segment and a fourth segment, one end of the third segment is connected to the connecting portion, one end of the fourth segment is connected to the other end of the third segment, and the third segment and the fourth segment are perpendicular to each other;

[0024] The second pulling part is located in the area enclosed by the third segment and the fourth segment. The second pulling part is used to pull the fourth segment. The surface of the second pulling part facing the third segment has a protrusion.

[0025] According to some embodiments of this disclosure, the second pulling part has a second convex arcuate surface on the side facing the fourth segment, the second convex arcuate surface being used to contact the fourth segment and form a line contact.

[0026] According to some embodiments of this disclosure, the first force-bearing member is connected to the connecting portion or the first movable spring, and has a pushing portion located between the two tension portions;

[0027] The first drive member also has a first pusher located between the two second pullers for pushing the pushed portion.

[0028] According to some embodiments of this disclosure, the first pushing part has a third convex arcuate surface on the side facing the pushed part, the third convex arcuate surface being used to contact the pushed part and form a line contact.

[0029] According to some embodiments of this disclosure, the first moving spring includes a plurality of stacked leaf springs, and the leaf spring that is furthest from the first stationary contact point among the plurality of leaf springs is defined as the first leaf spring;

[0030] The first leaf spring has a central portion and an annular segment at the position corresponding to the first stationary contact. The annular segment surrounds a portion of the outer periphery of the central portion, and a gap is formed between the annular segment and the central portion.

[0031] Along the extension direction of the gap, the annular segment bends in the direction away from the first static contact point to form the first force-bearing member, and the first force-bearing member surrounds a portion of the outer periphery of the second force-bearing member;

[0032] The first moving contact is simultaneously riveted to the remaining leaf springs, the center portion of the first leaf spring, and the second force-bearing member.

[0033] According to some embodiments of this disclosure, along the length direction of the first movable spring, the annular segment has a pressure zone at the position corresponding to the second force-bearing member, and the first driving member is used to push against the pressure zone.

[0034] According to some embodiments of this disclosure, the second force-bearing member and the first moving spring are an integral structure.

[0035] According to some embodiments of this disclosure, the second force-bearing member is formed by bending the end of the first moving spring in a direction away from the first stationary contact.

[0036] According to some embodiments of this disclosure, the first moving spring includes a plurality of stacked leaf springs, one end of which is bent in the longitudinal direction away from the first stationary contact to form the second force-bearing member.

[0037] According to some embodiments of this disclosure, the first force-bearing member is connected to the first movable spring, and the first movable spring is a separate structure from the first force-bearing member.

[0038] According to some embodiments of this disclosure, the leaf spring that is furthest from the first stationary contact among the plurality of leaf springs is defined as the first leaf spring, and the leaf spring that is disposed adjacent to the first leaf spring is defined as the second leaf spring.

[0039] One end of the first leaf spring in the length direction is bent in the direction away from the first stationary contact point to form the first force-bearing member, and one end of the second leaf spring in the length direction is bent in the direction away from the first stationary contact point to form the second force-bearing member.

[0040] According to some embodiments of this disclosure, the stiffness of the second leaf spring is greater than the stiffness of the first leaf spring.

[0041] According to some embodiments of this disclosure, the thickness of the second leaf spring is greater than the thickness of the first leaf spring.

[0042] According to some embodiments of this disclosure, the driving part further includes an armature assembly, which is an integral structure with the first driving member.

[0043] According to some embodiments of this disclosure, the relay further includes a housing, the armature assembly includes a swing portion and an armature body, the swing portion is swingable relative to the housing and is integrally injection molded to the armature body, and the first drive member is integrally connected to the swing portion for pushing the first force-receiving member or pulling the second force-receiving member.

[0044] According to some embodiments of this disclosure, the first contact portion further includes a second stationary contact, and the first moving contact and the second stationary contact are respectively disposed at both ends of the length direction of the first moving spring.

[0045] The second contact portion further includes a second movable spring and a second movable contact, wherein the first stationary contact and the second movable contact are respectively disposed at both ends of the second movable spring in the length direction;

[0046] The first moving spring and the second moving spring are arranged side by side, and the positions of the first moving contact and the first stationary contact correspond, and the positions of the second moving contact and the second stationary contact correspond;

[0047] The driving part further includes a push rod and a second driving member. The second driving member drives the second moving spring to move through the push rod, so that the second moving contact contacts or separates from the second stationary contact.

[0048] According to some embodiments of this disclosure, the relay further includes a permanent magnet disposed 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.

[0049] According to some embodiments of this disclosure, the first driving member has a pushing portion for pushing the first force-receiving member, and the orthographic projections of the pushing portion and the first movable spring on a target plane do not overlap;

[0050] The target plane is perpendicular to the thickness direction of the first moving spring.

[0051] One embodiment disclosed above has at least the following advantages or beneficial effects:

[0052] In the relay of this embodiment, the first driving member is configured to drive the first moving reed to move so that the first moving contact contacts or separates from the first stationary contact. Since the first driving member is located on the side of the first moving reed away from the first stationary contact and does not extend beyond the first moving reed into the vicinity of the first moving contact and the first stationary contact, the electric arc generated between the first moving contact and the first stationary contact will not burn the first driving member. This ensures the accuracy of the movement of the first driving member and extends the service life of the relay.

[0053] Furthermore, the first driving member pushes the first force-receiving member to move, causing the first moving contact to contact the first stationary contact. The first driving member also pulls the second force-receiving member to move, causing the first moving contact to separate from the first stationary contact. In other words, during the closing and opening processes of the contacts, the first driving member acts on two different components. Because the stiffness of the first force-receiving member is less than that of the second force-receiving member, and the first force-receiving member can deform to provide contact pressure to the first moving contact and the first stationary contact, a "flexible closure" effect is achieved when the contacts close, and a "rigid separation" effect is achieved when the contacts open.

[0054] Furthermore, since the second force-bearing component and the first moving spring are separate structures, and the stiffness of the second force-bearing component is greater than that of the first moving spring, the second force-bearing component can be made of a harder material, while the first moving spring can be made of a more flexible material. In this way, when the contact is broken, both the first moving spring and the second force-bearing component are kept flexible.

[0055] Furthermore, the first segment has a first convex arc-shaped surface. When the first pulling part pulls the first segment, the first pulling part contacts the first convex arc-shaped surface to form a line contact, which reduces the contact area between the first segment and the first pulling part and avoids wear and scratches caused by repeated contact and friction between the first segment and the first pulling part.

[0056] Furthermore, since the first driving element is located on the side of the first moving spring facing away from the first stationary contact, and not around the first moving contact and the first stationary contact, the position of the permanent magnet can be closer to the first moving contact and the first stationary contact, thereby increasing the magnetic field strength at the center of the contact and improving the arc extinguishing effect. Attached Figure Description

[0057] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. 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 shows a perspective view of a relay according to a first embodiment of the present disclosure.

[0059] Figure 2 shows an exploded view of Figure 1.

[0060] Figure 3 shows a top view omitting the first housing and fasteners in Figure 1.

[0061] Figure 4 shows a perspective view of the first contact portion of the relay and the first driving component assembled according to the first embodiment of this disclosure.

[0062] Figure 5 shows a three-dimensional schematic diagram of the first contact portion in Figure 4.

[0063] Figure 6 shows a three-dimensional schematic diagram of the first drive component, the second drive component, and the armature assembly in Figure 4.

[0064] Figure 7 shows a three-dimensional schematic diagram of the second stressed component in Figure 5.

[0065] Figure 8 shows a top view of a relay according to a second embodiment of the present disclosure.

[0066] Figure 9 shows a perspective view of the first contact portion of the relay and the first driving member after assembly according to the second embodiment of the present disclosure.

[0067] Figure 10 shows a three-dimensional schematic diagram of the first drive unit, the second drive unit, and the armature assembly in Figure 9 from one perspective.

[0068] Figure 11 shows a three-dimensional schematic diagram of the first contact portion in Figure 9.

[0069] Figure 12 shows a three-dimensional schematic diagram of the first drive unit, the second drive unit, and the armature assembly in Figure 9 from another perspective.

[0070] Figure 13 shows a top view of a relay according to a third embodiment of the present disclosure, wherein the contacts are in a closed state.

[0071] Figure 14 shows a top view of a relay according to a third embodiment of the present disclosure, wherein the contacts are in an open state.

[0072] Figure 15 shows a perspective view of the first contact portion of the relay and the first driving member after assembly according to the third embodiment of the present disclosure.

[0073] Figure 16 shows a three-dimensional schematic diagram of the first contact portion in Figure 15.

[0074] Figure 17 shows a top view of a relay according to the fourth embodiment of this disclosure.

[0075] Figure 18 shows a perspective view of the first contact portion of the relay and the first driving member after assembly according to the fourth embodiment of the present disclosure.

[0076] Figure 19 shows a three-dimensional schematic diagram of the first contact portion in Figure 18.

[0077] The reference numerals in the attached drawings are explained as follows: 100, outer shell; 110, first shell; 120, second shell; 130, fixing member; 200, first contact portion; 210, first moving spring; 211, leaf spring; 211a, first leaf spring; 211b, second leaf spring; 2111, center portion; 2112, annular segment; 2112a, pressure zone; 2113, gap; 220, first moving contact; 230, first force-bearing member; 231, push portion; 240, second force-bearing member; 241, connecting portion; 242, force-bearing portion; 2421, first segment; 2421a, first convex arc-shaped surface; 2422, second segment; 2423, tension portion; 2423a, third segment; 2423b, fourth segment; Section; 250, second stationary contact; 260, first lead-out piece; 300, second contact portion; 310, second moving spring; 320, first stationary contact; 330, second moving contact; 360, second lead-out piece; 400, driving portion; 410, first driving member; 411, first pulling portion; 412, second pulling portion; 4121, protrusion; 4122, second outwardly convex arc-shaped surface; 413, first pushing portion; 4131, third outwardly convex arc-shaped surface; 414, second pushing portion; 420, armature assembly; 420a, swing portion; 420b, armature body; 430, push rod; 440, coil assembly; 450, second driving member; 500, permanent magnet. Detailed Implementation

[0078] 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 disclosure 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.

[0079] It is understood that the terms "comprising" and "having," and any variations thereof, used in the embodiments of this disclosure, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus 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 such processes, methods, products, or apparatus.

[0080] This disclosure provides a relay, which may be a magnetic latching relay, but is not limited thereto.

[0081] As shown in Figures 1 and 2, the relay of this embodiment includes a housing 100, a first contact portion 200, a second contact portion 300, and a driving portion 400. The first contact portion 200, the second contact portion 300, and the driving portion 400 are disposed within the housing 100. The first contact portion 200 and the second contact portion 300 have a closed state and an open state, and the driving portion 400 is used to drive the first contact portion 200 and the second contact portion 300 to switch from the closed state to the open state and from the open state to the closed state.

[0082] 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 a first contact portion 200, a second contact portion 300, and a driving portion 400. The shape of the first casing 110 and the second casing 120 after connection can have various embodiments. For example, in the embodiments of this disclosure, 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.

[0083] As an example, the second housing 120 is a cuboid shape with an opening, and the first contact portion 200, the second contact portion 300, and the driving portion 400 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.

[0084] Of course, in other embodiments, the first housing 110 and the second housing 120 are both 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 first contact portion 200, the second contact portion 300 and the driving portion 400.

[0085] As shown in Figure 3, the driving unit 400 includes a coil assembly 440, an armature assembly 420, a first driving member 410, and a second driving member 450. The coil assembly 440 is installed inside the second housing 120, and the armature assembly 420 is oscillatingly disposed within the second housing 120 relative to the second housing 120. The first driving member 410 and the second driving member 450 are both connected to the armature assembly 420. The coil assembly 440 is electromagnetically coupled to the armature assembly 420 and is configured to drive the armature assembly 420 to oscillate in response to an input signal, thereby causing the armature assembly 420 to drive the first driving member 410 and the second driving member 450 to move.

[0086] In one embodiment, a fixing member 130 is further provided inside the outer casing 100, and the fixing member 130 can be fixedly installed on the second casing 120. The armature assembly 420 is oscillatingly connected to the fixing member 130.

[0087] The armature assembly 420 may include a swinging part 420a and two opposing armature bodies 420b. The swinging part 420a is swingably connected to the fixing member 130, and the armature bodies 420b are connected to the swinging part 420a. In one embodiment, the swinging part 420a is made of plastic and is connected to the armature bodies 420b by integral injection molding.

[0088] As shown in Figure 3, the first contact portion 200 includes a first movable spring 210, a first movable contact 220, a second stationary contact 250, and a first lead-out piece 260. The first movable contact 220 and the second stationary contact 250 are both disposed on the first movable spring 210 and are spaced apart along the length of the first movable spring 210. The first lead-out piece 260 is connected to the second stationary contact 250.

[0089] In one embodiment, the first moving contact 220 can be riveted to the first moving spring 210, and the second stationary contact 250 can be riveted to connect the first moving spring 210 and the first lead-out piece 260.

[0090] Of course, in other embodiments, the first moving contact 220 and the second stationary contact 250 may also be integrally formed on the first moving spring 210.

[0091] The second contact portion 300 includes a second movable spring 310, a first stationary contact 320, a second movable contact 330, and a second lead-out piece 360. The first stationary contact 320 and the second movable contact 330 are both disposed on the second movable spring 310 and are spaced apart along the length of the second movable spring 310. The second lead-out piece 360 ​​is connected to the first stationary contact 320.

[0092] In one embodiment, the first stationary contact 320 can be riveted to connect the second moving spring 310 and the second lead-out piece 360, and the second moving contact 330 can be riveted to the second moving spring 310.

[0093] Of course, in other embodiments, the first stationary contact 320 and the second moving contact 330 may also be integrally formed on the second moving spring 310.

[0094] As shown in Figure 3, the first moving spring 210 and the second moving spring 310 are arranged side by side along the thickness direction of the moving spring. In the thickness direction of the moving spring, the position of the first moving contact 220 corresponds to the position of the first stationary contact 320, and the first moving contact 220 is used to contact or separate from the first stationary contact 320; the position of the second moving contact 330 corresponds to the position of the second stationary contact 250, and the second moving contact 330 is used to contact or separate from the second stationary contact 250.

[0095] The first driving member 410 is used to drive the first moving spring 210 to move so that the first moving contact 220 contacts or separates from the first stationary contact 320; the second driving member 450 is used to drive the second moving spring 310 to move so that the second moving contact 330 contacts or separates from the second stationary contact 250.

[0096] When the first contact portion 200 and the second contact portion 300 are in the closed state, the first moving contact 220 is in contact with the first stationary contact 320, and the second moving contact 330 is in contact with the second stationary contact 250, so that the first moving spring 210 and the second moving spring 310 form a parallel circuit structure. When the first contact portion 200 and the second contact portion 300 are in the open state, the first moving contact 220 is separated from the first stationary contact 320, and the second moving contact 330 is separated from the second stationary contact 250.

[0097] The first moving contact 220 contacts the first stationary contact 320 to form an arc-resistant end contact group, and the second moving contact 330 contacts the second stationary contact 250 to form a current-carrying end contact group. The arc-resistant end contact group will generate an electric arc, while the current-carrying end contact group will not generate an electric arc.

[0098] A portion of the first lead 260 extends out of the outer surface of the housing 100, and a portion of the second lead 360 extends out of the surface of the housing 100. The portions of the first lead 260 and the second lead 360 extending out of the outer surface of the housing 100 are respectively used for electrical connection with the positive and negative terminals of the load.

[0099] Of course, the first contact portion 200 and the second contact portion 300 are not limited to a parallel circuit structure when closed. For example, in another embodiment, the first contact portion 200 includes a first moving spring 210 and a first moving contact 220, with the first moving contact 220 disposed on the first moving spring 210. The second contact portion 300 includes a second lead-out piece 360 ​​and a first stationary contact 320, with the first stationary contact 320 disposed on the second lead-out piece 360. The driving portion 400 has a first driving member 410, which drives the first moving spring 210 to move, so that the first moving contact 220 contacts or separates from the first stationary contact 320.

[0100] As shown in Figure 3, the driving part 400 also includes a push rod 430. One end of the push rod 430 is connected to the second driving member 450, and the other end of the push rod 430 is connected to the second moving spring 310. The second driving member 450 drives the second moving spring 310 to move through the push rod 430.

[0101] As shown in Figures 4 to 7, the first contact portion 200 further includes a first force-receiving member 230 and a second force-receiving member 240, both of which are disposed on the first movable spring 210. The first driving member 410 is located on the side of the first movable spring 210 facing away from the first stationary contact 320, and is configured to push the first force-receiving member 230 to move so that the first movable contact 220 contacts the first stationary contact 320, and to pull the second force-receiving member 240 to move so that the first movable contact 220 separates from the first stationary contact 320.

[0102] The stiffness of the first force-bearing member 230 is less than that of the second force-bearing member 240. During the process of the first driving member 410 pushing the first force-bearing member 230, the first force-bearing member 230 can deform and provide contact pressure to the first moving contact 220 and the first stationary contact 320.

[0103] In the relay of this embodiment, the first driving member 410 is configured to drive the first moving spring 210 to move, so that the first moving contact 220 contacts or separates from the first stationary contact 320. Since the first driving member 410 is located on the side of the first moving spring 210 away from the first stationary contact 320, and does not extend beyond the first moving spring 210 into the vicinity of the first moving contact 220 and the first stationary contact 320, the electric arc generated between the first moving contact 220 and the first stationary contact 320 will not burn the first driving member 410, thus ensuring the accuracy of the movement of the first driving member 410 and extending the service life of the relay.

[0104] Furthermore, the first driving member 410 pushes the first force-receiving member 230 to move, causing the first moving contact 220 to contact the first stationary contact 320. The first driving member 410 also pulls the second force-receiving member 240 to move, causing the first moving contact 220 to separate from the first stationary contact 320. In other words, during the closing and opening processes of the contacts, the first driving member 410 acts on two different components. Since the stiffness of the first force-receiving member 230 is less than that of the second force-receiving member 240, and the first force-receiving member 230 can deform to provide contact pressure to the first moving contact 220 and the first stationary contact 320, a "flexible closure" effect is achieved when the contacts close, and a "rigid separation" effect is achieved when the contacts open.

[0105] For "rigid breaking", since the second force-bearing component 240 has greater rigidity, when the first driving component 410 pulls the second force-bearing component 240, the deformation is concentrated on the first moving spring 210, while the second force-bearing component 240 hardly deforms. This reduces the loss of breaking force transmitted to the moving and stationary contacts and shortens the force transmission time, which is conducive to timely breaking and avoids the problem of burning and sticking of the first moving contact 220 and the first stationary contact 320 due to heat generation during operation.

[0106] For "flexible closure," the contact pressure after the first moving contact 220 contacts the first stationary contact 320 is proportional to the elastic force generated by the deformation of the first force-bearing component 230 due to the push of the first driving component 410. That is, the greater the elastic force provided by the first force-bearing component 230 after deformation, the greater the contact pressure. Since the stiffness of the first force-bearing component 230 is less than that of the second force-bearing component 240, on the one hand, the first force-bearing component 230 is more flexible and less prone to fatigue after multiple deformations, ensuring the consistency of the contact pressure; on the other hand, according to the formula F = kx (F is the elastic force provided by the first force-bearing component 230 after deformation, k is the elastic modulus of the first force-bearing component 230, and x is the deformation of the first force-bearing component 230), it can be seen that the magnitude of the elastic force of the first force-bearing component 230 is related to k and x. By designing k to be smaller, the value of x can be larger while maintaining the same elastic force. This means that, with the elastic force remaining constant, the first force-bearing component 230 is allowed to produce a larger deformation. This significantly reduces the requirements for the stroke and dimensional accuracy of the first force-bearing component 230, which is beneficial for parameter control of relay products. In one embodiment, the second force-bearing component 240 does not deform during the process of the first driving component 410 pulling the second force-bearing component 240.

[0107] Of course, in other embodiments, the second force-receiving member 240 may also undergo slight deformation during the process of the first driving member 410 pulling the second force-receiving member 240.

[0108] In one embodiment, the second force-receiving member 240 and the first movable spring 210 are separate structures. The stiffness of the second force-receiving member 240 is greater than the stiffness of the first movable spring 210.

[0109] In this embodiment, since the second force-receiving member 240 and the first movable spring 210 are separate structures, and the stiffness of the second force-receiving member 240 is greater than that of the first movable spring 210, the second force-receiving member 240 can be made of a harder material, while the first movable spring 210 can be made of a more flexible material. Thus, when the contact is broken, both the first movable spring 210 and the second force-receiving member 240 are kept flexible.

[0110] As shown in Figures 4 and 7, the second force-receiving member 240 includes a connecting portion 241 and a force-receiving portion 242. The connecting portion 241 is located on the side of the first movable spring 210 facing away from the first stationary contact 320 and is riveted to the first movable spring 210. In one embodiment, the first movable contact 220 is riveted to both the first movable spring 210 and the connecting portion 241 of the second force-receiving member 240. For example, the first movable spring 210 has a first through hole, and the connecting portion 241 has a second through hole. The positions of the first through hole and the second through hole correspond, and the first movable contact 220 passes through the first through hole and the second through hole, thus riveting the first movable spring 210 and the connecting portion 241 together.

[0111] The force-receiving part 242 is connected to the connecting part 241 and protrudes from the side surface of the connecting part 241 facing away from the first stationary contact 320. The first driving member 410 is used to pull the force-receiving part 242 to separate the first moving contact 220 from the first stationary contact 320.

[0112] As shown in Figure 7, the force-receiving part 242 has a first segment 2421 and two second segments 2422. The two second segments 2422 are arranged at intervals along the width direction of the first moving spring 210, and one end of each of the two second segments 2422 is connected to the connecting part 241, and the other end is connected to both ends of the first segment 2421 respectively.

[0113] As shown in Figure 6, the first driving member 410 has a first pulling part 411 and a second pushing part 414, and the second pushing part 414 is connected to the first pulling part 411. The first pulling part 411 is located within the frame structure formed by the first segment 2421 and the two second segments 2422, and is used to pull the first segment 2421.

[0114] As shown in Figure 7, the first segment 2421 has a first convex arcuate surface 2421a on the side facing the first pull part 411. The first convex arcuate surface 2421a is used to contact the first pull part 411 and form a line contact.

[0115] In this embodiment of the present disclosure, the first segment 2421 has a first convex arc-shaped surface 2421a. When the first pulling part 411 pulls the first segment 2421, the first pulling part 411 contacts the first convex arc-shaped surface 2421a to form a line contact, which reduces the contact area between the first segment 2421 and the first pulling part 411 and avoids wear and scratches caused by repeated contact and friction between the first segment 2421 and the first pulling part 411.

[0116] As shown in Figures 4 and 5, the first movable spring 210 includes multiple stacked leaf springs 211. The leaf spring 211 furthest from the first stationary contact 320 is defined as the first leaf spring 211a. The first leaf spring 211a has a central portion 2111 and an annular segment 2112 at the position corresponding to the first stationary contact 320. The annular segment 2112 surrounds a portion of the outer periphery of the central portion 2111, and a gap 2113 is formed between the annular segment 2112 and the central portion 2111. Along the extending direction of the gap 2113, the annular segment 2112 bends in a direction away from the first stationary contact 320 to form a first force-bearing member 230. The first force-bearing member 230 surrounds a portion of the outer periphery of the second force-bearing member 240. The first movable contact 220 is simultaneously riveted to the remaining leaf springs, the central portion 2111 of the first leaf spring 211a, and the connecting portion 241 of the second force-bearing member 240.

[0117] Along the length of the first moving spring 210, the annular segment 2112 has a pressure zone 2112a at the position corresponding to the second force-receiving member 240, and the second pushing part 414 of the first driving member 410 is used to push against the pressure zone 2112a.

[0118] The first moving reed 210 may include two, three, four or other leaf springs 211, and this disclosure does not make any particular limitation on this.

[0119] Of course, the first movable spring 210 may not be composed of multiple leaf springs 211, but rather a single leaf spring component. One end of the first movable spring 210 in the longitudinal direction is bent to form the first force-bearing member 230.

[0120] As shown in Figure 6, both the first driving member 410 and the second driving member 450 are integrally formed with the armature assembly 420. For example, both the first driving member 410 and the second driving member 450 are integrally formed with the swing portion 420a of the armature assembly 420.

[0121] In one embodiment, the first drive member 410 and the second drive member 450 are made of plastic and are connected to the armature assembly 420 by integral injection molding.

[0122] Compared to the existing technology where the push rod 430 and armature assembly 420 are separate structures and connected by a transmission link, the first driving member 410 and armature assembly 420 of this embodiment are an integral structure. Firstly, this reduces the number of parts in the driving part 400 and lowers mold costs. Secondly, it reduces the assembly steps of the push rod 430 and armature assembly 420 and lowers assembly difficulty. Thirdly, it reduces transmission errors caused by factors such as dimensional tolerances, deformation, and assembly precision of the push rod 430. Fourthly, it avoids contact point bounce and spring impact caused by the inertia of the push rod 430. Fifthly, the integral structure of the first driving member 410 and armature assembly 420 makes the structure of the driving part 400 more compact and reduces the internal volume occupied by the outer casing 100.

[0123] Please refer back to Figure 3. The relay also includes a permanent magnet 500, which is disposed around the first moving contact 220 and the first stationary contact 320 to extinguish the electric arc generated between the first moving contact 220 and the first stationary contact 320.

[0124] In this embodiment of the present disclosure, since the first driving member 410 is located on the side of the first moving spring 210 facing away from the first stationary contact 320, and is not located around the first moving contact 220 and the first stationary contact 320, the position of the permanent magnet 500 can be closer to the first moving contact 220 and the first stationary contact 320, thereby increasing the magnetic field strength at the center of the contact and improving the arc extinguishing effect.

[0125] As described above, when the first contact portion 200 and the second contact portion 300 are in the closed state, the first movable spring 210 and the second movable spring 310 form a parallel circuit structure, and the current direction through the first movable spring 210 is the same as the current direction through the second movable spring 310. Therefore, the first movable spring 210 and the second movable spring 310 attract each other. When a large current flows, a large attraction force can be generated between the first movable spring 210 and the second movable spring 310, which causes the first movable spring 210 and the second movable spring 310 to change from their original parallel arrangement to bending and deforming in a direction closer to each other.

[0126] Taking the first movable spring 210 as an example, when the first movable spring 210 undergoes a large bending deformation, the middle part of the first movable spring 210 will tilt upwards, while the end of the first movable spring 210 with the first movable contact 220 will tilt downwards. In related technologies, since the contact is closed or opened by driving the end of the first movable spring 210 using the push rod 430, when the end of the first movable spring 210 tilts downwards, the first movable spring 210 will abut against the push rod 430, thus affecting the holding force of the armature assembly 420.

[0127] In one embodiment of this disclosure, the first driving member 410 has a pushing part for pushing the first force receiving member 230. The orthographic projections of the pushing part and the first movable spring 210 on a target plane do not overlap. Thus, when the end of the first movable spring 210 with the first movable contact 220 tilts downward, the first movable spring 210 and the pushing part will not interfere with each other, and the first movable spring 210 will not abut against the pushing part, thus ensuring the holding force provided by the armature assembly 420.

[0128] In this embodiment of the present disclosure, the pushing part is a second pushing part 414.

[0129] In one embodiment, all of the first moving springs 210 are located on the side of the pushing part facing the second stationary contact 250, and will not abut against the pushing part when the end of the first moving spring 210 is tilted downward.

[0130] In another embodiment, the first movable spring 210 may have an opening at the position corresponding to the pushing part. When the end of the first movable spring 210 is tilted downward, the pushing part can extend into the opening of the first movable spring 210 without abutting against the first movable spring 210. This also avoids the first movable spring 210 from hitting the pushing part.

[0131] Furthermore, it should be emphasized that since the first driving member 410 is located on the side of the first moving spring 210 facing away from the first stationary contact 320, there is no need to worry about the electric arc generated between the moving and stationary contacts burning the first driving member 410. Therefore, in the length direction of the first moving spring 210, the pushing part of the first driving member 410 can be arranged closer to the first moving contact 220. This way, when the end of the first moving spring 210 tilts, the tilting component of the position corresponding to the pushing part is smaller. Therefore, even if the end of the first moving spring 210 extends beyond the pushing part, the first moving spring 210 is less likely to come into contact with the pushing part, avoiding the problem of the first moving spring 210 abutting against the pushing part and affecting the holding force.

[0132] As shown in Figures 8 to 12, the similarities between the relay of the second embodiment and the relay of the first embodiment of this disclosure will not be repeated here. The differences are as follows:

[0133] The second force-bearing component 240 includes a connecting part 241 and a force-bearing part 242. The connecting part 241 is connected to the first moving spring 210, for example by riveting. The force-bearing part 242 is connected to the connecting part 241.

[0134] As shown in Figure 11, the force-receiving part 242 includes two tension-receiving parts 2423 that are spaced apart along the width direction of the first moving spring 210, and the tension-receiving parts 2423 are connected to the connecting part 241.

[0135] As shown in Figures 9 and 10, the first driving member 410 has two second pulling parts 412 that are spaced apart along the width direction of the first moving spring 210. The two second pulling parts 412 are located on the side of the two tensioned parts 2423 facing the first moving spring 210, and are used to pull the two tensioned parts 2423 respectively.

[0136] As shown in Figures 9, 11, and 12, the tensioned portion 2423 has a third segment 2423a and a fourth segment 2423b. One end of the third segment 2423a is connected to the connecting portion 241, and one end of the fourth segment 2423b is connected to the other end of the third segment 2423a. The third segment 2423a and the fourth segment 2423b are perpendicular to each other. The second pulling portion 412 is located in the area enclosed by the third segment 2423a and the fourth segment 2423b. The second pulling portion 412 is used to pull the fourth segment 2423b. The surface of the second pulling portion 412 facing the third segment 2423a has a protrusion 4121.

[0137] In this embodiment of the present disclosure, the second pulling part 412 has a protrusion 4121 on the side surface facing the third segment 2423a. The protrusion 4121 can contact the third segment 2423a to prevent a large contact area from forming between the second pulling part 412 of the first driving member 410 and the third segment 2423a during the movement, thereby avoiding friction and scratches.

[0138] In one embodiment, the protrusion 4121 can be a long strip-shaped rib, a hemispherical protrusion, or the like.

[0139] As shown in Figure 12, the second pulling part 412 has a second convex arc-shaped surface 4122 on the side facing the fourth segment 2423b. The second convex arc-shaped surface 4122 is used to contact the fourth segment 2423b and form a line contact.

[0140] In this embodiment of the present disclosure, the second pulling part 412 has a second convex arc-shaped surface 4122. When the second pulling part 412 pulls the fourth segment 2423b, the fourth segment 2423b comes into contact with the second convex arc-shaped surface 4122 to form a line contact, thereby reducing the contact area between the fourth segment 2423b and the second pulling part 412 and avoiding wear and scratches caused by repeated contact and friction between the fourth segment 2423b and the second pulling part 412.

[0141] As shown in Figures 9 and 11, in one embodiment, the first force-receiving member 230 can be a compression spring, but is not limited thereto. The first force-receiving member 230 is connected to the connecting portion 241 or the first movable spring 210, and has a pushing portion 231 located between the two tension portions 2423; the first driving member 410 also has a first pushing portion 413 located between the two second pulling portions 412, for pushing the pushing portion 231. In the embodiment of this disclosure, the pushing portion of the first driving member 410 is the first pushing portion 413.

[0142] As shown in Figure 10, the first pushing part 413 has a third convex arc-shaped surface 4131 on the side facing the pushed part 231. The third convex arc-shaped surface 4131 is used to contact the pushed part 231 and form a line contact.

[0143] In this embodiment of the present disclosure, the first pushing part 413 has a third convex arc-shaped surface 4131. When the first pushing part 413 pushes the pushed part 231, the pushed part 231 contacts the third convex arc-shaped surface 4131 to form a line contact, which reduces the contact area between the first pushing part 413 and the pushed part 231 and avoids wear and scratches caused by repeated contact and friction between the first pushing part 413 and the pushed part 231.

[0144] As shown in Figures 13 to 16, the similarities between the relay of the third embodiment and the relay of the second embodiment of this disclosure will not be repeated here. The differences are as follows:

[0145] The second force-bearing component 240 and the first movable spring 210 are integrally formed. Furthermore, the second force-bearing component 240 is formed by bending the end of the first movable spring 210 in a direction away from the first stationary contact 320.

[0146] For example, the first moving spring 210 includes a plurality of stacked leaf springs 211, one end of which is bent in the longitudinal direction away from the first stationary contact 320 to form a second force-bearing member 240.

[0147] For example, in one embodiment, the first movable spring 210 includes three leaf springs 211, which are stacked. The second force-bearing member 240 can be formed on any one of the leaf springs 211.

[0148] In one embodiment, the shape and structure of the second force-receiving member 240 can refer to the second force-receiving member 240 of the relay in the second embodiment. For example, the second force-receiving member 240 includes two tension portions 2423 spaced apart along the width direction of the first moving spring 210, which will not be described in detail here.

[0149] Similarly, the first driving member 410 may include two second pulling parts 412 that are spaced apart along the width direction of the first moving spring 210. The two second pulling parts 412 are respectively located on the side of the two tensioned parts 2423 facing the first moving spring 210, and are used to pull the two tensioned parts 2423 respectively. This will not be described in detail here.

[0150] As shown in Figures 15 and 16, the first force-bearing component 230 is connected to the first movable spring 210, and the first movable spring 210 is a separate structure.

[0151] The shape and structure of the first force-bearing member 230 in this embodiment can be referred to the first force-bearing member 230 of the relay in the second embodiment, and will not be repeated here.

[0152] As shown in Figures 17 to 19, the similarities between the relay of the fourth embodiment and the relay of the first embodiment will not be repeated here. The differences are as follows:

[0153] The second force-bearing component 240 and the first movable spring 210 are integrally formed. Furthermore, the second force-bearing component 240 is formed by bending the end of the first movable spring 210 in a direction away from the first stationary contact 320.

[0154] For example, the first moving spring 210 includes multiple stacked leaf springs 211. The leaf spring 211 that is furthest from the first stationary contact 320 is defined as the first leaf spring 211a, and the leaf spring 211 that is adjacent to the first leaf spring 211a is defined as the second leaf spring 211b.

[0155] One end of the first leaf spring 211a is bent in the direction away from the first stationary contact 320 to form the first force-bearing member 230, and one end of the second leaf spring 211b is bent in the direction away from the first stationary contact 320 to form the second force-bearing member 240.

[0156] The shape and structure of the first force-bearing member 230 and the second force-bearing member 240 in this embodiment can be referred to the shape and structure of the first force-bearing member 230 and the second force-bearing member 240 in the first embodiment, and will not be repeated here.

[0157] Of course, in other embodiments, the second force-bearing member 240 may also be formed by bending the first leaf spring 211a, and the first force-bearing member 230 may also be formed by bending the second leaf spring 211b.

[0158] Alternatively, when the first moving spring 210 includes three or more leaf springs 211, the first force-bearing member 230 and the second force-bearing member 240 can be formed by bending any two leaf springs 211 from the plurality of leaf springs 211.

[0159] In one embodiment, the stiffness of the second leaf spring 211b is greater than the stiffness of the first leaf spring 211a.

[0160] In order to achieve the effect that the stiffness of the second spring 211b is greater than that of the first spring 211a, the thickness of the second spring 211b can be designed to be greater than that of the first spring 211a.

[0161] Of course, in other embodiments, when the thickness of the first leaf spring 211a is equal to the thickness of the second leaf spring 211b, the first leaf spring 211a may be made of a material with lower stiffness, while the second leaf spring 211b may be made of a material with higher stiffness.

[0162] In summary, the relays of the present disclosure embodiments have at least the following advantages and beneficial effects:

[0163] In the relay of this embodiment, the first driving member 410 is configured to drive the first moving spring 210 to move, so that the first moving contact 220 contacts or separates from the first stationary contact 320. Since the first driving member 410 is located on the side of the first moving spring 210 away from the first stationary contact 320, and does not extend beyond the first moving spring 210 into the vicinity of the first moving contact 220 and the first stationary contact 320, the electric arc generated between the first moving contact 220 and the first stationary contact 320 will not burn the first driving member 410, thus ensuring the accuracy of the movement of the first driving member 410 and extending the service life of the relay.

[0164] Furthermore, the first driving member 410 pushes the first force-receiving member 230 to move, causing the first moving contact 220 to contact the first stationary contact 320. The first driving member 410 also pulls the second force-receiving member 240 to move, causing the first moving contact 220 to separate from the first stationary contact 320. In other words, during the closing and opening processes of the contacts, the first driving member 410 acts on two different components. Since the stiffness of the first force-receiving member 230 is less than that of the second force-receiving member 240, and the first force-receiving member 230 can deform to provide contact pressure to the first moving contact 220 and the first stationary contact 320, a "flexible closure" effect is achieved when the contacts close, and a "rigid separation" effect is achieved when the contacts open.

[0165] Furthermore, since the second force-bearing component 240 and the first movable spring 210 are separate structures, and the stiffness of the second force-bearing component 240 is greater than that of the first movable spring 210, the second force-bearing component 240 can be made of a harder material, while the first movable spring 210 can be made of a more flexible material. In this way, when the contact is broken, both the first movable spring 210 maintains flexibility, and the second force-bearing component 240 maintains rigidity.

[0166] Furthermore, the first segment 2421 has a first convex arc-shaped surface 2421a. When the first pulling part 411 pulls the first segment 2421, the first pulling part 411 contacts the first convex arc-shaped surface 2421a to form a line contact, which reduces the contact area between the first segment 2421 and the first pulling part 411 and avoids wear and scratches caused by repeated contact and friction between the first segment 2421 and the first pulling part 411.

[0167] Furthermore, since the first driving member 410 is located on the side of the first moving spring 210 facing away from the first stationary contact 320, and not around the first moving contact 220 and the first stationary contact 320, the position of the permanent magnet 500 can be closer to the first moving contact 220 and the first stationary contact 320, thereby increasing the magnetic field strength at the center of the contact and improving the arc extinguishing effect.

[0168] It is understood that the various embodiments / implementations provided in this disclosure can be combined with each other without creating contradictions, and will not be described in detail here.

[0169] In the disclosed embodiments, 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 disclosed embodiments according to the specific circumstances.

[0170] In the description of the disclosed embodiments, 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 disclosed embodiments 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 disclosed embodiments.

[0171] 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 disclosed embodiments. 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.

[0172] The above are merely preferred embodiments of the disclosed embodiments and are not intended to limit the disclosed embodiments. For those skilled in the art, the disclosed embodiments can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the disclosed embodiments should be included within the protection scope of the disclosed embodiments.

Claims

1. A relay, characterized in that, include: The first contact portion includes a first movable spring, a first movable contact, a first force-receiving element, and a second force-receiving element disposed on the first movable spring; The second contact portion includes the first stationary contact; as well as The driving part has a first driving member, which is located on the side of the first moving spring facing away from the first stationary contact and is configured to push the first force-receiving member to move so that the first moving contact contacts the first stationary contact, and to pull the second force-receiving member to move so that the first moving contact separates from the first stationary contact. Wherein, the stiffness of the first force-bearing member is less than that of the second force-bearing member, and during the process of the first driving member pushing the first force-bearing member, the first force-bearing member can deform to provide contact pressure to the first moving contact and the first stationary contact.

2. The relay according to claim 1, characterized in that, During the process of the first driving member pulling the second force-receiving member, the second force-receiving member did not deform.

3. The relay according to claim 1, characterized in that, The second force-bearing component and the first moving spring are separate structures.

4. The relay according to claim 3, characterized in that, The stiffness of the second force-bearing component is greater than the stiffness of the first moving spring.

5. The relay according to claim 3, characterized in that, The second force-bearing component is riveted to the first moving spring.

6. The relay according to claim 5, characterized in that, The first moving contact is simultaneously riveted to the first moving spring and the second force-bearing component.

7. The relay according to claim 5, characterized in that, The second force-receiving component includes a connecting part and a force-receiving part. The connecting part is located on the side of the first movable spring facing away from the first stationary contact and is riveted to the first movable spring. The force-receiving part is connected to the connecting part and protrudes from the surface of the connecting part facing away from the first stationary contact. The first driving member is used to pull the force-receiving part to separate the first movable contact from the first stationary contact.

8. The relay according to claim 7, characterized in that, The force-bearing part has a first section and two second sections. The two second sections are arranged at intervals along the width direction of the first movable spring, and one end of each of the two second sections is connected to the connecting part, and the other end is connected to both ends of the first section respectively. The first driving member has a first pulling part located within a frame structure formed by the first segment and the two second segments, and is used to pull the first segment.

9. The relay according to claim 8, characterized in that, The first segment has a first convex arc-shaped surface on the side facing the first pulling part, and the first convex arc-shaped surface is used to contact the first pulling part and form a line contact.

10. The relay according to claim 7, characterized in that, The force-bearing part includes two tension-bearing parts spaced apart, and the tension-bearing parts are connected to the connecting part; The first drive member has two second pulling parts, which are located on the side of the two tensioned parts facing the first moving spring, and are used to pull the two tensioned parts respectively.

11. The relay according to claim 10, characterized in that, The tension portion has a third section and a fourth section, one end of the third section is connected to the connecting portion, one end of the fourth section is connected to the other end of the third section, and the third section and the fourth section are perpendicular to each other; The second pulling part is located in the area enclosed by the third segment and the fourth segment. The second pulling part is used to pull the fourth segment. The surface of the second pulling part facing the third segment has a protrusion.

12. The relay according to claim 11, characterized in that, The second pulling part has a second convex arc-shaped surface on the side facing the fourth segment, and the second convex arc-shaped surface is used to contact the fourth segment and form a line contact.

13. The relay according to claim 10, characterized in that, The first force-receiving member is connected to the connecting part or the first movable spring, and has a pushing part located between the two tension parts; The first drive member also has a first pusher located between the two second pullers for pushing the pushed portion.

14. The relay according to claim 13, characterized in that, The first pushing part has a third convex arc-shaped surface on the side facing the pushed part, and the third convex arc-shaped surface is used to contact the pushed part and form a line contact.

15. The relay according to claim 1, characterized in that, The first moving spring includes multiple stacked leaf springs, and the leaf spring that is furthest from the first stationary contact point among the multiple leaf springs is defined as the first leaf spring; The first leaf spring has a central portion and an annular segment at the position corresponding to the first stationary contact. The annular segment surrounds a portion of the outer periphery of the central portion, and a gap is formed between the annular segment and the central portion. Along the extension direction of the gap, the annular segment bends in the direction away from the first static contact point to form the first force-bearing member, and the first force-bearing member surrounds a portion of the outer periphery of the second force-bearing member; The first moving contact is simultaneously riveted to the remaining leaf springs, the center portion of the first leaf spring, and the second force-bearing member.

16. The relay according to claim 15, characterized in that, Along the length of the first moving spring, the annular segment has a pressure zone at the position corresponding to the second force-receiving member, and the first driving member is used to push against the pressure zone.

17. The relay according to claim 1, characterized in that, The second force-bearing component and the first moving spring are an integral structure.

18. The relay according to claim 17, characterized in that, The second force-bearing component is formed by bending the end of the first moving spring in a direction away from the first stationary contact.

19. The relay according to claim 18, characterized in that, The first moving spring includes multiple stacked leaf springs, one end of which is bent in the longitudinal direction away from the first stationary contact point to form the second force-bearing member.

20. The relay according to claim 19, characterized in that, The first force-bearing component is connected to the first movable spring, and the two components are separate structures.

21. The relay according to claim 19, characterized in that, The leaf spring that is furthest from the first stationary contact among the plurality of leaf springs is defined as the first leaf spring, and the leaf spring that is adjacent to the first leaf spring is defined as the second leaf spring. One end of the first leaf spring in the length direction is bent in the direction away from the first stationary contact point to form the first force-bearing member, and one end of the second leaf spring in the length direction is bent in the direction away from the first stationary contact point to form the second force-bearing member.

22. The relay according to claim 21, characterized in that, The stiffness of the second leaf spring is greater than that of the first leaf spring.

23. The relay according to claim 22, characterized in that, The thickness of the second leaf spring is greater than the thickness of the first leaf spring.

24. The relay according to any one of claims 1-23, characterized in that, The drive unit also includes an armature assembly, which is an integral structure with the first drive component.

25. The relay according to claim 24, characterized in that, The relay also includes a housing, and the armature assembly includes a swinging part and an armature body. The swinging part is swingable relative to the housing and is integrally injection molded to the armature body. The first driving member is integrally connected to the swinging part and is used to push the first force-receiving member or pull the second force-receiving member.

26. The relay according to any one of claims 1-23, characterized in that, The first contact portion further includes a second stationary contact, and the first moving contact and the second stationary contact are respectively disposed at both ends of the length direction of the first moving spring. The second contact portion further includes a second movable spring and a second movable contact, wherein the first stationary contact and the second movable contact are respectively disposed at both ends of the second movable spring in the length direction; The first moving spring and the second moving spring are arranged side by side, and the positions of the first moving contact and the first stationary contact correspond, and the positions of the second moving contact and the second stationary contact correspond; The driving part further includes a push rod and a second driving member. The second driving member drives the second moving spring to move through the push rod, so that the second moving contact contacts or separates from the second stationary contact.

27. The relay according to any one of claims 1-23, characterized in that, The relay also includes a permanent magnet disposed around the first moving contact and the first stationary contact to extinguish the electric arc generated between the first moving contact and the first stationary contact.

28. The relay according to claim 1, characterized in that, The first driving member has a pushing part for pushing the first force-receiving member, and the orthographic projections of the pushing part and the first movable spring on a target plane do not overlap; The target plane is perpendicular to the thickness direction of the first moving spring.

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