Relay

Abstract

A relay includes a first contact portion, a second contact portion, and a driving portion. The first contact part comprises a first movable contact spring, and a first movable contact, a first stress piece and a second stress piece which are arranged on the first movable contact spring. The second contact portion includes a first stationary contact. The driving part is provided with a first driving piece, and the first driving piece is located on the side, opposite to the first static contact, of the first movable contact spring and is configured to push the first stress piece to move so that the first movable contact can make contact with the first static contact and pull the second stress piece to move so that the first movable contact can be separated from the first static contact. The rigidity of the first stress piece is smaller than that of the second stress piece, and in the process that the first driving piece pushes the first stress piece, the first stress piece can deform to provide contact pressure for the first movable contact and the first static contact.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric control devices, in particular to a relay. BACKGROUND

[0002] A relay is an electronic control device, which has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is usually applied in an automatic control circuit. The relay is actually a kind of "automatic switch" that uses a small current to control a large current. Therefore, it plays a role of automatic adjustment, safety protection, and circuit conversion in the circuit.

[0003] As one of the relays, the magnetic latching relay includes two contact parts and a driving part. One of the contact parts has a moving contact, and the other contact part has a stationary contact. The driving part has a push rod, and the driving part can drive one of the contact parts to reciprocate through the push rod, so as to make the moving contact contact or separate from the stationary contact.

[0004] When the moving contact and the stationary contact are disconnected, an arc is easily generated between the two, and the arc is easy to ablate the push rod after being elongated, which causes the end of the push rod to be deformed or damaged, affects the precision of the movement of the push rod, and even causes the relay to be unable to switch between the closed state and the disconnected state, and seriously shortens the service life of the relay. CONTENT OF THE INVENTION

[0005] Embodiments of the present application provide a relay to solve the problem of arc ablation of the push rod in the related art.

[0006] The relay of the embodiments of the present application includes:

[0007] The first contact part includes a first moving spring plate, a first moving contact, a first force receiving member, and a second force receiving member disposed on the first moving spring plate;

[0008] The second contact part includes a first stationary contact; and

[0009] The driving part has a first driving member, which is located on a side of the first moving spring plate away from the first stationary contact, and is configured to push the first force receiving member to move to make the first moving contact contact the first stationary contact, and pull the second force receiving member to move to make the first moving contact separate from the first stationary contact;

[0010] The rigidity of the first force receiving member is less than the rigidity of the second force receiving member, and in the process of the first driving member pushing the first force receiving member, the first force receiving member can be deformed to provide a contact pressure to the first moving contact and the first stationary contact.

[0011] According to some embodiments of the present application, the second force receiving member does not deform during the pulling of the first driving member.

[0012] According to some embodiments of the present application, the second force receiving member is separate from the first spring.

[0013] According to some embodiments of the present application, the second force receiving member has a rigidity greater than that of the first spring.

[0014] According to some embodiments of the present application, the second force receiving member is riveted to the first spring.

[0015] According to some embodiments of the present application, the first movable contact is riveted to both the first spring and the second force receiving member.

[0016] According to some embodiments of the present application, the second force receiving member comprises a connecting portion and a force receiving portion, the connecting portion is disposed on a side of the first spring opposite to the first fixed contact and is riveted to the first spring, the force receiving portion is connected to the connecting portion and protrudes from a surface of the connecting portion on a side opposite to the first fixed contact, and the first driving member is configured to pull the force receiving portion to separate the first movable contact from the first fixed contact.

[0017] According to some embodiments of the present application, the force receiving portion has a first segment and two second segments, the two second segments are arranged at intervals, and one end of each of the two second segments is connected to the connecting portion and the other end of each of the two second segments is connected to two ends of the first segment, respectively.

[0018] The first driving member has a first pulling portion, the first pulling portion is located within a frame-shaped structure formed by the first segment and the two second segments, and is configured to pull the first segment.

[0019] According to some embodiments of the present application, a side of the first segment facing the first pulling portion has a first convex arc-shaped surface, and the first convex arc-shaped surface is configured to contact the first pulling portion and form a line contact.

[0020] According to some embodiments of the present application, the force receiving portion comprises two pulling portions arranged at intervals, and the pulling portions are connected to the connecting portion.

[0021] The first driving member has two second pulling portions, the two second pulling portions are located on a side of the two pulling portions facing the first spring, respectively, and are configured to pull the two pulling portions, respectively.

[0022] According to some embodiments of the present application, the tensioned part has a third section and a fourth section, one end of the third section is connected with the connecting part, one end of the fourth section is connected with the other end of the third section, and the third section is perpendicular to the fourth section;

[0023] The second pulling part is located in the area surrounded by the third section and the fourth section, and is used to pull the fourth section, and the second pulling part is provided with a protruding part towards one side surface of the third section.

[0024] According to some embodiments of the present application, the second pulling part has a second convex arc-shaped surface towards one side of the fourth section, which is used to contact and form linear contact with the fourth section.

[0025] According to some embodiments of the present application, the first force receiving member is connected with the connecting part or the first moving spring piece, and has a force pushing part located between the two tensioned parts;

[0026] The first driving member also has a first pushing part located between the two second pulling parts, which is used to push the force pushing part.

[0027] According to some embodiments of the present application, the first pushing part has a third convex arc-shaped surface towards one side of the force pushing part, which is used to contact and form linear contact with the force pushing part.

[0028] According to some embodiments of the present application, the first moving spring piece includes a plurality of laminated spring pieces, and the spring piece farthest from the first stationary contact point is defined as a first spring piece;

[0029] The first spring piece has a center part and an annular section at the position corresponding to the first stationary contact point, the annular section surrounds part of the outer periphery of the center part, and a gap is formed between the annular section and the center part;

[0030] Along the extension direction of the gap, the annular section is bent towards the direction away from the first stationary contact point to form the first force receiving member, and the first force receiving member surrounds part of the outer periphery of the second force receiving member;

[0031] The first moving contact point is riveted with the remaining spring pieces, the center part of the first spring piece, and the second force receiving member.

[0032] According to some embodiments of the present application, along the length direction of the first moving spring piece, the position corresponding to the second force receiving member of the annular section has a pressure receiving area, and the first driving member is used to push against the pressure receiving area.

[0033] According to some embodiments of the present application, the second force receiving member is an integral structure with the first moving spring piece.

[0034] According to some embodiments of the present application, the second force receiving member is formed by bending an end of the first moving spring piece in a direction away from the first stationary contact.

[0035] According to some embodiments of the present application, the first moving spring piece comprises a plurality of spring pieces stacked together, wherein one end of a length direction of one of the spring pieces is bent in a direction away from the first stationary contact to form the second force receiving member.

[0036] According to some embodiments of the present application, the first force receiving member is connected with the first moving spring piece and is a separate structure from the first moving spring piece.

[0037] According to some embodiments of the present application, one of the spring pieces farthest away from the first stationary contact is defined as a first spring piece, and a spring piece adjacent to the first spring piece is defined as a second spring piece.

[0038] One end of a length direction of the first spring piece is bent in a direction away from the first stationary contact to form the first force receiving member, and one end of a length direction of the second spring piece is bent in a direction away from the first stationary contact to form the second force receiving member.

[0039] According to some embodiments of the present application, the second spring piece has a greater stiffness than the first spring piece.

[0040] According to some embodiments of the present application, the second spring piece has a greater thickness than the first spring piece.

[0041] According to some embodiments of the present application, the driving portion further comprises an armature assembly, and the armature assembly is an integral structure with the first driving member.

[0042] According to some embodiments of the present application, the relay further comprises a housing, the armature assembly comprises a swing portion and an armature body, the swing portion is swingable relative to the housing and is connected with the armature body through integral injection molding, and the first driving member is integrally connected to the swing portion for pushing the first force receiving member or pulling the second force receiving member.

[0043] According to some embodiments of the present application, the first contact portion further comprises a second stationary contact, and the first moving contact and the second stationary contact are respectively arranged at two ends of a length direction of the first moving spring piece.

[0044] The second contact portion further comprises a second moving spring piece and a second moving contact, and the first stationary contact and the second moving contact are respectively arranged at two ends of a length direction of the second moving spring piece.

[0045] The first moving spring plate and the second moving spring plate are arranged side by side, and the first moving contact point corresponds to the position of the first stationary contact point, and the second moving contact point corresponds to the position of the second stationary contact point.

[0046] The driving part further comprises a pushing rod and a second driving member, the second driving member drives the second moving spring plate to move through the pushing rod, so that the second moving contact point contacts or separates from the second stationary contact point.

[0047] According to some embodiments of the present application, the relay further comprises a permanent magnet arranged around the first moving contact point and the first stationary contact point, for eliminating the electric arc generated between the first moving contact point and the first stationary contact point.

[0048] According to some embodiments of the present application, the first driving member has a pushing part for pushing the first force receiving member, and the pushing part and the first moving spring plate each have no overlapping part in the normal projection on a target plane.

[0049] The target plane is perpendicular to the thickness direction of the first moving spring plate.

[0050] The above-mentioned embodiment has at least the following advantages or beneficial effects:

[0051] The relay of the embodiment of the present application, the first driving member is configured to drive the first moving spring plate to move, so that the first moving contact point contacts or separates from the first stationary contact point. Since the first driving member is located on the side of the first moving spring plate away from the first stationary contact point, and does not extend into the surrounding of the first moving contact point and the first stationary contact point beyond the first moving spring plate, the electric arc generated between the first moving contact point and the first stationary contact point will not ablate the first driving member, which not only ensures the precision of the movement of the first driving member, but also prolongs the service life of the relay.

[0052] In addition, the first driving member pushes the first force receiving member to move so that the first moving contact point contacts the first stationary contact point, and the first driving member pulls the second force receiving member to move so that the first moving contact point separates from the first stationary contact point, that is, in the process of closing and opening the contact point, the first driving member acts on two different components respectively. Since the rigidity of the first force receiving member is less than that of the second force receiving member, and the first force receiving member can be deformed to provide contact pressure to the first moving contact point and the first stationary contact point, the effect of "flexible closing" is achieved when the contact point is closed, and the effect of "rigid breaking" is achieved when the contact point is opened.

[0053] Further, since the second force receiving member and the first moving spring plate are in a split structure, and the rigidity of the second force receiving member is greater than the rigidity of the first moving spring plate, the second force receiving member can be made of a stiffer material, and the first moving spring plate can be made of a more flexible material. In this way, when the contact is broken, the first moving spring plate remains flexible, and the second force receiving member remains rigid.

[0054] Further, the first section has a first outer convex arc-shaped surface, when the first pulling part pulls the first section, the first pulling part contacts the first outer convex arc-shaped surface to form linear contact, which reduces the contact area between the first section and the first pulling part, and avoids the generation of scratches due to the repeated contact and friction between the first section and the first pulling part.

[0055] Further, since the first driving member is located on the side of the first moving spring plate away from the first stationary contact, and not in the periphery of 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. BRIEF DESCRIPTION OF DRAWINGS

[0056] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application. It is to be expressly understood, however, that the drawings are included herein for illustrative purposes only and that they are subject to interpretation, modification and / or change, without creating a deviation from the spirit and scope of the present disclosure.

[0057] Figure 1 Fig. 1 shows a perspective view of a relay according to a first embodiment of the present application.

[0058] Figure 2 Fig. 2 shows an exploded view of the relay shown in Fig. 1. Figure 1

[0059] Fig. 3 shows a top view of the relay shown in Fig. 1, with the first housing and the fixing member omitted. Figure 3 Figure 1 Fig. 4 shows a perspective view of the first contact part of the relay shown in Fig. 1.

[0060] Figure 4 Fig. 5 shows a perspective view of the first driving member, the second driving member and the armature assembly of the relay shown in Fig. 1.

[0061] Figure 5 Figure 4 Fig. 6 shows a perspective view of the first contact part of the relay shown in Fig. 1.

[0062] Figure 6 Fig. 7 shows a perspective view of the first driving member, the second driving member and the armature assembly of the relay shown in Fig. 1. Figure 4

[0063] Fig. 8 shows a perspective view of the first contact part of the relay shown in Fig. 1.​​Figure 7 Fig. 2 shows a perspective view of the second force receiving member in Fig. 1. Figure 5

[0064] Figure 8 Fig. 5 shows a top view of a relay according to a second embodiment of the application.

[0065] Figure 9 Fig. 6 shows a perspective view of the first contact part and the first drive member of the relay according to the second embodiment of the application.

[0066] Figure 10 Fig. 7 shows a perspective view of the first drive member, the second drive member and the armature assembly in Fig. 6 from another viewing angle. Figure 9

[0067] Figure 11 Fig. 8 shows a perspective view of the first contact part in Fig. 7. Figure 9

[0068] Figure 12 Fig. 9 shows a perspective view of the first drive member, the second drive member and the armature assembly in Fig. 7 from another viewing angle. Figure 9

[0069] Figure 13 Fig. 12 shows a top view of a relay according to a third embodiment of the application, wherein the contacts are in a closed state.

[0070] Figure 14 Fig. 13 shows a top view of the relay according to the third embodiment of the application, wherein the contacts are in an open state.

[0071] Figure 15 Fig. 14 shows a perspective view of the first contact part and the first drive member of the relay according to the third embodiment of the application.

[0072] Figure 16 Fig. 15 shows a perspective view of the first contact part in Fig. 14. Figure 15

[0073] Fig. 16 shows a top view of a relay according to a fourth embodiment of the application. Figure 17

[0074] Fig. 17 shows a perspective view of the first contact part and the first drive member of the relay according to the fourth embodiment of the application. Figure 18

[0075] Fig. 18 shows a perspective view of the first contact part in Fig. 17. Figure 19 Figure 18

[0076] In the figures, the reference signs are explained as follows:

[0077] ​​​​​​100, housing; 110, first housing; 120, second housing; 130, fixing member;

[0078] 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, compressed area; 2113, gap; 220, first moving contact; 230, first force receiving member; 231, pushed portion; 240, second force receiving member; 241, connecting portion; 242, force receiving portion; 2421, first segment; 2421a, first outer convex arc surface; 2422, second segment; 2423, pulled portion; 2423a, third segment; 2423b, fourth segment; 250, second stationary contact; 260, first lead-out piece;

[0079] 300, second contact portion; 310, second moving spring; 320, first stationary contact; 330, second moving contact; 360, second lead-out piece;

[0080] 400, driving portion; 410, first driving member; 411, first pulling portion; 412, second pulling portion; 4121, protruding portion; 4122, second outer convex arc surface; 413, first pushing portion; 4131, third outer convex arc surface; 414, second pushing portion; 420, armature assembly; 420a, oscillating portion; 420b, armature body; 430, pushing rod; 440, coil assembly; 450, second driving member;

[0081] 500, permanent magnet. DETAILED DESCRIPTION

[0082] Example implementations are now described with reference to the drawings; however, these implementations are merely examples of implementations and are not intended to be limiting. Rather, these implementations are presented as understood by one of ordinary skill in the art to fully and completely convey the scope of the example implementations to those skilled in the art. Like reference numbers in the figures indicate like elements or features, and thus detailed descriptions of them will not be repeated.

[0083] It is understood that the terms "comprises" and "comprising", or "includes" and "including" when used in this specification, specify the presence of stated features, integers, steps, or components, but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof.

[0084] The example implementations provide a relay, which can be a latching relay, but is not limited thereto.

[0085] As Figure 1 and Figure 2 shown, the relay of the embodiment of the present application comprises a housing 100, a first contact part 200, a second contact part 300 and a driving part 400. The first contact part 200, the second contact part 300 and the driving part 400 are arranged in the housing 100. The first contact part 200 and the second contact part 300 have a closed state and an open state, and the driving part 400 is used to drive the first contact part 200 and the second contact part 300 to switch from the closed state to the open state and from the open state to the closed state.

[0086] In an embodiment, as Figure 2 shown, the housing 100 can comprise a first shell 110 and a second shell 120, the first shell 110 and the second shell 120 are connected together and form a hollow chamber for accommodating the first contact part 200, the second contact part 300 and the driving part 400. The shape of the first shell 110 and the second shell 120 after being connected can have various embodiments, for example, in the embodiment of the present application, the shape of the first shell 110 and the second shell 120 after being connected is a hollow cuboid. Of course, in other embodiments, the shape of the first shell 110 and the second shell 120 after being connected can also be a hollow cylinder, or other suitable shapes.

[0087] As an example, the second shell 120 is a cuboid shape with an opening, and the first contact part 200, the second contact part 300 and the driving part 400 are arranged in the second shell 120 through the opening of the second shell 120. The first shell 110 is plate-shaped, and the first shell 110 is buckled on the opening of the second shell 120 to form a hollow cuboid.

[0088] Of course, in other embodiments, the first shell 110 and the second shell 120 are both cuboid-shaped and have openings on one face, the opening of the first shell 110 is arranged opposite to the opening of the second shell 120, and the first shell 110 and the second shell 120 are buckled to form a hollow chamber for accommodating the first contact part 200, the second contact part 300 and the driving part 400.

[0089] As Figure 3As shown, the driving section 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.

[0090] 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.

[0091] 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.

[0092] like Figure 3 As shown, 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] In an embodiment, the first stationary contact 320 can connect the second movable spring piece 310 and the second lead-out piece 360 by riveting, and the second movable contact 330 can be connected to the second movable spring piece 310 by riveting.

[0097] Of course, in other embodiments, the first stationary contact 320 and the second movable contact 330 can also be integrally formed on the second movable spring piece 310.

[0098] As shown in FIG. 2, the first movable spring piece 210 and the second movable spring piece 310 are arranged side by side along the thickness direction of the movable spring piece, and in the thickness direction of the movable spring piece, the position of the first movable contact 220 corresponds to the position of the first stationary contact 320, and the first movable contact 220 is used to contact or separate from the first stationary contact 320; the position of the second movable contact 330 corresponds to the position of the second stationary contact 250, and the second movable contact 330 is used to contact or separate from the second stationary contact 250. Figure 3

[0099] The first driving member 410 is used to drive the first movable spring piece 210 to move, so as to make the first movable contact 220 contact or separate from the first stationary contact 320; the second driving member 450 is used to drive the second movable spring piece 310 to move, so as to make the second movable contact 330 contact or separate from the second stationary contact 250.

[0100] When the first contact part 200 and the second contact part 300 are in the closed state, the first movable contact 220 contacts the first stationary contact 320, and the second movable contact 330 contacts the second stationary contact 250, so as to form a loop structure with the first movable spring piece 210 and the second movable spring piece 310. When the first contact part 200 and the second contact part 300 are in the open state, the first movable contact 220 separates from the first stationary contact 320, and the second movable contact 330 separates from the second stationary contact 250.

[0101] The first movable contact 220 and the first stationary contact 320 form an arc-resistant end contact group, and the second movable contact 330 and the second stationary contact 250 form a current-carrying end contact group. The arc-resistant end contact group will generate an arc, and the current-carrying end contact group will not generate an arc.

[0102] Part of the first lead-out piece 260 protrudes from the outer surface of the shell 100, and part of the second lead-out piece 360 protrudes from the surface of the shell 100. The parts of the first lead-out piece 260 and the second lead-out piece 360 protruding from the outer surface of the shell 100 are respectively used to electrically connect with the positive electrode and the negative electrode of the load.

[0103] ​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.

[0104] like Figure 3 As shown, the drive part 400 also includes a push rod 430. One end of the push rod 430 is connected to the second drive member 450, and the other end of the push rod 430 is connected to the second movable spring 310. The second drive member 450 drives the second movable spring 310 to move through the push rod 430.

[0105] like Figures 4 to 7 As shown, the first contact portion 200 also 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;

[0106] 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.

[0107] In the relay of this application 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, which not only ensures the accuracy of the movement of the first driving member 410, but also extends the service life of the relay.

[0108] In addition, the first driving member 410 pushes the first force receiving member 230 to move so as to make the first movable contact 220 contact the first fixed contact 320, and the first driving member 410 pulls the second force receiving member 240 to move so as to make the first movable contact 220 separate from the first fixed contact 320, that is, the first driving member 410 acts on two different components in the processes of contact closing and contact opening respectively. Since the rigidity of the first force receiving member 230 is less than the rigidity of the second force receiving member 240, and the first force receiving member 230 can be deformed to provide contact pressure to the first movable contact 220 and the first fixed contact 320, the effect of "flexible closing" is achieved when the contacts are closed, and the effect of "rigid breaking" is achieved when the contacts are opened.

[0109] For "rigid breaking", since the rigidity of the second force receiving member 240 is large, when the first driving member 410 pulls the second force receiving member 240, the deformation mainly occurs on the first movable spring plate 210, and the second force receiving member 240 hardly deforms, thereby reducing the loss of breaking force transmitted to the movable and fixed contacts, and shortening the time of force transmission, which is beneficial to timely breaking and avoids the problem of ablation and adhesion of the first movable contact 220 and the first fixed contact 320 due to work heating.

[0110] For "flexible closing", the contact pressure after the first movable contact 220 contacts the first fixed contact 320 is proportional to the elastic force formed after the first force receiving member 230 deforms due to being pushed by the first driving member 410, that is, the greater the elastic force provided by the first force receiving member 230 after deformation, the greater the contact pressure. Since the rigidity of the first force receiving member 230 is less than the rigidity of the second force receiving member 240, on the one hand, the first force receiving member 230 is relatively soft and is not prone to fatigue after multiple deformations, thereby 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 receiving member 230 after deformation, k is the elastic modulus of the first force receiving member 230, and x is the deformation of the first force receiving member 230), it can be seen that the elastic force of the first force receiving member 230 is related to k and x. If k is designed to be small, then under the premise of ensuring the same elastic force, the value of x is greater, that is, under the condition that the elastic force is unchanged, the first force receiving member 230 is allowed to have a larger deformation, which significantly reduces the requirements for the movement stroke and size precision of the first force receiving member 230, and is beneficial to the parameter control of the relay product. In an embodiment, the second force receiving member 240 does not deform during the process of the first driving member 410 pulling the second force receiving member 240.

[0111] Of course, in other embodiments, the second force receiving member 240 can also have a small deformation during the process of the first driving member 410 pulling the second force receiving member 240.

[0112] 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.

[0113] 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.

[0114] like Figure 4 and Figure 7 As shown, 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.

[0115] 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.

[0116] like Figure 7 As shown, 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.

[0117] like Figure 6 As shown, the first drive 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.

[0118] like Figure 7 As shown, 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.

[0119] In the embodiment, the first section 2421 has a first convex arc surface 2421a. When the first pulling portion 411 pulls the first section 2421, the first pulling portion 411 is in linear contact with the first convex arc surface 2421a, thereby reducing the contact area between the first section 2421 and the first pulling portion 411, and avoiding the generation of scratches due to the repeated contact and friction between the first section 2421 and the first pulling portion 411.

[0120] As shown in Figure 4 and Figure 5 The first moving contact 220 includes a plurality of laminated leaf springs 211. The leaf spring 211 farthest from the first stationary contact 320 is defined as the first leaf spring 211a. The position corresponding to the first stationary contact 320 of the first leaf spring 211a has a center portion 2111 and an annular segment 2112. The annular segment 2112 surrounds part of the outer periphery of the center portion 2111, and a gap 2113 is formed between the annular segment 2112 and the center portion 2111. Along the extension direction of the gap 2113, the annular segment 2112 is bent in a direction away from the first stationary contact 320 to form the first force receiving member 230, which surrounds part of the outer periphery of the second force receiving member 240. The first moving contact 220 is riveted to the center portion 2111 of the first leaf spring 211a, the remaining leaf springs, and the connecting portion 241 of the second force receiving member 240.

[0121] Along the length direction of the first moving contact 220, the position corresponding to the second force receiving member 240 of the annular segment 2112 has a pressure receiving area 2112a. The second pushing portion 414 of the first driving member 410 is used to push the pressure receiving area 2112a.

[0122] The number of leaf springs 211 included in the first moving contact 220 can be two, three, four, or any other number, which is not particularly limited in the present application.

[0123] Of course, the first moving contact 210 can not be composed of a plurality of leaf springs 211, but can be composed of a single leaf spring member. One end of the first moving contact 210 in the length direction is bent to form the first force receiving member 230.

[0124] As shown in Figure 6 The first driving member 410 and the second driving member 450 are in an integral structure with the armature assembly 420. For example, the first driving member 410 and the second driving member 450 are in an integral structure with the oscillating portion 420a of the armature assembly 420.

[0125] In an embodiment, the first driving member 410 and the second driving member 450 are made of plastic and are connected to the armature assembly 420 by integral injection molding.

[0126] Compared with the push rod 430 and the armature assembly 420 in the prior art being a split structure, and the design of the transmission connection between the push rod 430 and the armature assembly 420, the first driving part 410 and the armature assembly 420 in the embodiment of the application are an integrated structure. First, the number of parts of the driving part 400 is reduced, and the mold cost is reduced. Second, the assembly process of the push rod 430 and the armature assembly 420 is reduced, and the assembly difficulty is reduced. Third, the transmission error caused by factors such as the size tolerance, deformation, and assembly accuracy of the push rod 430 is reduced. Fourth, the contact bounce and spring impact phenomenon caused by the movement inertia of the push rod 430 is avoided. Fifth, the integrated design of the first driving part 410 and the armature assembly 420 makes the structure of the driving part 400 more compact, and the internal volume of the shell 100 is reduced.

[0127] Please refer back to Figure 3 The relay further includes a permanent magnet 500 arranged around the first moving contact 220 and the first stationary contact 320, and used to eliminate the electric arc generated between the first moving contact 220 and the first stationary contact 320.

[0128] In the embodiment of the application, the first driving part 410 is located on the side of the first moving spring 210 away from the first stationary contact 320, and is not arranged around the first moving contact 220 and the first stationary contact 320. Therefore, the permanent magnet 500 can be arranged closer to the first moving contact 220 and the first stationary contact 320, and the magnetic field strength of the contact center is increased, and the arc extinguishing effect is improved.

[0129] As described above, when the first contact part 200 and the second contact part 300 are in the closed state, the first moving spring 210 and the second moving spring 310 form a parallel circuit structure, and the current direction passing through the first moving spring 210 is the same as the current direction passing through the second moving spring 310. Therefore, the first moving spring 210 and the second moving spring 310 attract each other. When a larger current flows, a larger attractive force can be generated between the first moving spring 210 and the second moving spring 310, and the first moving spring 210 and the second moving spring 310 are switched from the original parallel arrangement to the bending deformation along the direction of approaching each other.

[0130] Taking the first moving spring 210 as an example, when the deflection of the bending deformation of the first moving spring 210 is large, the middle part of the first moving spring 210 will be upwarping, and the end of the first moving spring 210 provided with the first moving contact 220 will be downwardly inclined. In the related art, since the end of the first moving spring 210 is driven by the push rod 430 to realize the contact closing or opening, when the end of the first moving spring 210 is downwardly inclined, the first moving spring 210 will abut against the push rod 430, and the holding force of the armature assembly 420 is affected.

[0131] In one embodiment of this application, 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.

[0132] In the embodiments of this application, the pushing part is the second pushing part 414.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] like Figures 8 to 12 As shown, the similarities between the relay of the second embodiment and the relay of the first embodiment will not be repeated here, but the differences are as follows:

[0137] 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.

[0138] like Figure 11 As shown, the force-receiving part 242 includes two tension-receiving parts 2423 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.

[0139] likeFigure 9 and Figure 10 As shown in

[0140] As shown in Figure 9 , Figure 11 and Figure 12 As shown in

[0141] In the embodiment, the second pulling portion 412 is provided with the protruding portion 4121 on the side surface facing the third segment 2423a, the protruding portion 4121 can contact the third segment 2423a, preventing a large contact area from being formed between the second pulling portion 412 of the first driving member 410 and the third segment 2423a during movement, thereby avoiding the occurrence of frictional scrapes.

[0142] In an embodiment, the protruding portion 4121 can be a long strip-shaped convex rib, a hemispherical convex bump, or the like.

[0143] As shown in Figure 12 The second pulling portion 412 has a second outer convex arc-shaped surface 4122 on the side facing the fourth segment 2423b, the second outer convex arc-shaped surface 4122 is used to contact and form a line contact with the fourth segment 2423b.

[0144] In the embodiment, the second pulling portion 412 has the second outer convex arc-shaped surface 4122, when the second pulling portion 412 pulls the fourth segment 2423b, the fourth segment 2423b contacts the second outer convex arc-shaped surface 4122 to form a line contact, reducing the contact area between the fourth segment 2423b and the second pulling portion 412, and avoiding the occurrence of abrasion and scrapes due to repeated contact and friction between the fourth segment 2423b and the second pulling portion 412.

[0145] As shown in Figure 9 and Figure 11As shown, 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 embodiments of this application, the pushing portion of the first driving member 410 is the first pushing portion 413.

[0146] like Figure 10 As shown, the first pushing part 413 has a third convex arcuate surface 4131 on the side facing the pushed part 231. The third convex arcuate surface 4131 is used to contact the pushed part 231 and form a line contact.

[0147] In the embodiments of this application, 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.

[0148] like Figures 13 to 16 As shown, the similarities between the relay of the third embodiment and the relay of the second embodiment will not be repeated here, but the differences are as follows:

[0149] 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.

[0150] 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.

[0151] 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.

[0152] 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.

[0153] Similarly, the first driving member 410 can include two second pulling portions 412 spaced apart along the width direction of the first moving reed 210, and the two second pulling portions 412 are respectively located on the side of the two pulling portions 2423 facing the first moving reed 210, and are respectively used to pull the two pulling portions 2423. Details are not described here.

[0154] As shown in Figure 15 and Figure 16 The first force receiving member 230 is connected with the first moving reed 210, and the first force receiving member 230 and the first moving reed 210 are in a split structure.

[0155] In the embodiment of the application, the shape and structure of the first force receiving member 230 can refer to the first force receiving member 230 of the second embodiment of the relay, and details are not described here.

[0156] As shown in Figures 17 to 19 The relay of the fourth embodiment of the application has the same parts as the relay of the first embodiment, and details are not described here. The difference is that:

[0157] The second force receiving member 240 and the first moving reed 210 are in an integral structure. Further, the second force receiving member 240 is formed by bending the end of the first moving reed 210 towards the direction away from the first static contact 320.

[0158] For example, the first moving reed 210 includes a plurality of laminated leaf springs 211, and the leaf spring 211 farthest from the first static contact 320 in the plurality of leaf springs 211 is defined as the first leaf spring 211a, and the leaf spring 211 adjacent to the first leaf spring 211a is defined as the second leaf spring 211b.

[0159] One end of the first leaf spring 211a in the length direction is bent towards the direction away from the first static contact 320 to form the first force receiving member 230, and one end of the second leaf spring 211b in the length direction is bent towards the direction away from the first static contact 320 to form the second force receiving member 240.

[0160] In the embodiment of the application, the shape and structure of the first force receiving member 230 and the second force receiving member 240 can refer to the shape and structure of the first force receiving member 230 and the second force receiving member 240 of the first embodiment, and details are not described here.

[0161] Of course, in other embodiments, the second force receiving member 240 can also be formed by bending the first leaf spring 211a, and the first force receiving member 230 can also be formed by bending the second leaf spring 211b.

[0162] Alternatively, when the number of leaf springs 211 included in the first moving reed 210 is greater than or equal to three, the first force receiving member 230 and the second force receiving member 240 can be formed by bending any two leaf springs 211 in the plurality of leaf springs 211.

[0163] In an embodiment, the second leaf spring 211b has a greater stiffness than the first leaf spring 211a.

[0164] In order to achieve the effect that the second leaf spring 211b has a greater stiffness than the first leaf spring 211a, the thickness of the second leaf spring 211b can be designed to be greater than the thickness of the first leaf spring 211a.

[0165] 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 can be made of a material with a smaller stiffness, and the second leaf spring 211b can be made of a material with a greater stiffness.

[0166] In summary, the relay according to the embodiments of the present application has at least the following advantages and beneficial effects:

[0167] In the relay according to the embodiments of the present application, the first driving member 410 is configured to drive the first moving spring 210 to move, so as to make the first moving contact 220 contact or separate from the first stationary contact 320. Since the first driving member 410 is located on the side of the first moving spring 210 that is away from the first stationary contact 320, and does not extend into the surroundings of the first moving contact 220 and the first stationary contact 320 beyond the first moving spring 210, the electric arc generated between the first moving contact 220 and the first stationary contact 320 will not ablate the first driving member 410, thereby ensuring the precision of the movement of the first driving member 410 and prolonging the service life of the relay.

[0168] In addition, the first driving member 410 pushes the first force receiving member 230 to move, so as to make the first moving contact 220 contact the first stationary contact 320, and the first driving member 410 pulls the second force receiving member 240 to move, so as to make the first moving contact 220 separate from the first stationary contact 320. That is, in the two processes of closing and opening of the contacts, the first driving member 410 acts on two different components, respectively. Since the stiffness of the first force receiving member 230 is less than the stiffness of the second force receiving member 240, and the first force receiving member 230 can be deformed to provide contact pressure to the first moving contact 220 and the first stationary contact 320, the effect of “flexible closing” is achieved when the contacts are closed, and the effect of “rigid breaking” is achieved when the contacts are opened.

[0169] Further, since the second force receiving member 240 and the first moving spring 210 are in a split structure, and the stiffness of the second force receiving member 240 is greater than the stiffness of the first moving spring 210, the second force receiving member 240 can be made of a stiffer material, and the first moving spring 210 can be made of a more flexible material. In this way, when the contacts are broken, the first moving spring 210 remains flexible, and the second force receiving member 240 remains rigid.

[0170] Further, the first section 2421 has a first outer convex arc surface 2421a, when the first pulling part 411 pulls the first section 2421, the first pulling part 411 contacts with the first outer convex arc surface 2421a to form line contact, which reduces the contact area between the first section 2421 and the first pulling part 411, and avoids the generation of scratches due to the repeated contact and friction between the first section 2421 and the first pulling part 411.

[0171] Further, since the first driving part 410 is located on the side of the first moving contact 220 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 of the contact center and improving the arc extinguishing effect.

[0172] It can be understood that the various embodiments / embodiments provided by the application can be combined with each other without contradiction, which will not be illustrated one by one here.

[0173] In the embodiments of the application, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0174] In the description of the embodiments of the application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the embodiments of the application and simplifying the description, and therefore, cannot be understood as indicating or implying that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the embodiments of the application.

[0175] In the description of the present application, the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0176] The above merely provides preferred embodiments of the application, and is not intended to limit the application. The application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall fall within the protection scope of the application.

Claims

1. A relay characterized by comprising: The connector comprises: a first contact part comprising a first moving spring plate, a first moving contact, a first force receiving member and a second force receiving member arranged on the first moving spring plate; a second contact part comprising a first stationary contact; and a driving part having a first driving member arranged on a side of the first moving spring plate away from the first stationary contact and configured to push the first force receiving member to move so as to make the first moving contact contact the first stationary contact, and pull the second force receiving member to move so as to make the first moving contact separate from the first stationary contact; wherein the first force receiving member has a rigidity smaller than that of the second force receiving member, and in the process of the first driving member pushing the first force receiving member, the first force receiving member can be deformed to provide contact pressure to the first moving contact and the first stationary contact. In the process of the first driving member pulling the second force receiving member, the second force receiving member is not deformed.

2. The relay according to claim 1, characterized in that The second force receiving member is in a separate structure from the first moving spring plate.

3. The relay of claim 1, wherein The second force receiving member has a rigidity greater than that of the first moving spring plate.

4. The relay according to claim 3, characterized in that The second force receiving member is riveted to the first moving spring plate.

5. The relay of claim 3, wherein The first moving contact is riveted to the first moving spring plate and the second force receiving member.

6. The relay of claim 5, wherein The second force receiving member comprises a connecting part and a force receiving part, the connecting part is arranged on a side of the first moving spring plate away from the first stationary contact and is riveted to the first moving spring plate, the force receiving part is connected to the connecting part and protrudes from a side surface of the connecting part away from the first stationary contact, and the first driving member is used to pull the force receiving part to make the first moving contact separate from the first stationary contact.

7. The relay of claim 5, wherein The force receiving part has a first section and two second sections, the two second sections are arranged at intervals, and one end of each of the two second sections is connected to the connecting part, and the other end of each of the two second sections is connected to two ends of the first section.

8. The relay according to claim 7, characterized in that The first driving member has a first pulling part, the first pulling part is located in a frame structure formed by the first section and the two second sections, and is used to pull the first section. A side of the first section facing the first pulling part has a first outward convex arc-shaped surface, and the first outward convex arc-shaped surface is used to contact the first pulling part and form a line contact.

9. The relay of claim 8, wherein The force receiving part comprises two spaced-apart tension receiving parts, and the tension receiving parts are connected to the connecting part.

10. The relay of claim 7, wherein The first driving member has two second pulling parts, and the two second pulling parts are respectively located on a side of the two tension receiving parts facing the first moving spring plate, and are used to pull the two tension receiving parts respectively. The tension receiving part has a third section and a fourth section, one end of the third section is connected to the connecting part, one end of the fourth section is connected to the other end of the third section, and the third section is perpendicular to the fourth section.

11. The relay according to claim 10, characterized in that The second pulling part is located in a region surrounded by the third section and the fourth section, and is used to pull the fourth section. The second pulling part has a protruding part on a side surface facing the third section. A side of the second pulling part facing the fourth section has a second outward convex arc-shaped surface, and the second outward convex arc-shaped surface is used to contact the fourth section and form a line contact.

12. The relay of claim 11, wherein, ​ 13. The relay of claim 10, wherein, The first force receiving member is connected to the connecting portion or the first moving reed and has a push receiving portion between the two pull receiving portions; The first driving member further has a first push portion between the two second pull portions, for pushing the push receiving portion.

14. The relay of claim 13, wherein, The first push portion has a third convex arc surface on the side facing the push receiving portion, for contacting and forming linear contact with the push receiving portion.

15. The relay of claim 1, wherein, The first moving reed comprises a plurality of laminated leaf springs, and one of the leaf springs farthest from the first stationary contact is defined as a first leaf spring; The first leaf spring has a center portion and an annular segment at the position corresponding to the first stationary contact, the annular segment surrounds part of the outer periphery of the center portion, and a gap is formed between the annular segment and the center portion; Along the extension direction of the gap, the annular segment is bent in the direction away from the first stationary contact to form the first force receiving member, and the first force receiving member surrounds part of the outer periphery of the second force receiving member; The first moving contact is riveted to the remaining leaf springs, the center portion of the first leaf spring, and the second force receiving member.

16. The relay of claim 15, wherein, Along the length direction of the first moving reed, the annular segment has a pressure receiving area at the position corresponding to the second force receiving member, and the first driving member is used to push the pressure receiving area.

17. The relay of claim 1, wherein The second force receiving member is an integral structure with the first moving reed.

18. The relay of claim 17, wherein, The second force receiving member is formed by bending the end of the first moving reed in the direction away from the first stationary contact.

19. The relay of claim 18, wherein, The first moving reed comprises a plurality of laminated leaf springs, and one end of one of the leaf springs is bent in the direction away from the first stationary contact to form the second force receiving member.

20. The relay of claim 19, wherein, The first force receiving member is connected to the first moving reed and is a separate structure from the first moving reed.

21. The relay of claim 19, wherein, One of the leaf springs farthest from the first stationary contact is defined as a first leaf spring, and the leaf spring adjacent to the first leaf spring is defined as a second leaf spring; One end of the first leaf spring is bent in the direction away from the first stationary contact to form the first force receiving member, and one end of the second leaf spring is bent in the direction away from the first stationary contact to form the second force receiving member.

22. The relay of claim 21, wherein, The stiffness of the second leaf spring is greater than that of the first leaf spring.

23. The relay of claim 22, wherein, The thickness of the second leaf spring is greater than that of the first leaf spring.

24. The relay according to any one of claims 1 to 23, characterized in that The driving portion further comprises an armature assembly, and the armature assembly is an integral structure with the first driving member.

25. The relay of claim 24, wherein, The relay further comprises a housing, the armature assembly comprises a swing portion and an armature body, the swing portion is swingable relative to the housing and is connected to the armature body by integral injection molding, and the first driving member is integrally connected to the swing portion for pushing the first force receiving member or pulling the second force receiving member.

26. The relay according to any one of claims 1 to 23, characterized in that The first contact portion further comprises a second stationary contact, and the first moving contact and the second stationary contact are respectively arranged at the two ends of the length direction of the first moving reed; The second contact part further comprises a second moving spring plate and a second moving contact, the first stationary contact and the second moving contact are respectively arranged at two ends of the length direction of the second moving spring plate; The first moving spring plate is arranged side by side with the second moving spring plate, and the first moving contact corresponds to the position of the first stationary contact, and the second moving contact corresponds to the position of the second stationary contact; The driving part further comprises a push rod and a second driving member, the second driving member drives the second moving spring plate to move through the push rod, so that the second moving contact is in contact or separated from the second stationary contact.

27. The relay according to any one of claims 1 to 23, characterized in that The relay further comprises a permanent magnet arranged around the first moving contact and the first stationary contact, for eliminating the arc generated between the first moving contact and the first stationary contact.

28. The relay of claim 1, wherein, The first driving member has a pushing part for pushing the first force receiving member, and the pushing part and the first moving spring plate do not have overlapping parts in the normal projection on a target plane; The target plane is perpendicular to the thickness direction of the first moving spring plate.

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