Elastic structure, movable contact assembly and relay

Abstract

The invention provides an elastic structure, a movable contact assembly and a relay, a first elastic member comprises a first supporting part and a first elastic part which are connected, the first supporting part elastically contacts a movable contact member, the first elastic part elastically contacts a pushing member, and a second elastic member is provided with a first contact part and a second contact part. The first contact portion elastically contacts at least one of the first support portion and the movable contact member, and the second contact portion elastically contacts at least one of the first elastic portion and the push member. After the elastic structure is stressed between the pushing piece and the movable contact piece, the second elastic piece can provide additional elastic supporting force between the pushing piece and the movable contact piece, and the elastic supporting force can be applied to the direction of the movable contact piece from the pushing piece, so that when the movable contact piece and the static contact piece are in closed contact, the elastic supporting force can be applied to the movable contact piece. And the contact stability between the movable contact piece and the static contact piece can be kept by using the elastic supporting force, the contact rebound is resisted, and the conditions of arcing ablation, silver layer splashing, bonding fusion welding and the like are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of electronic control devices, and in particular to elastic structures, moving contact components and relays. Background Art

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. A relay is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] When the relay is working, the pusher will apply a pushing force to the moving contact, causing the moving contact to move from the open position to the closed position, and then close with the static contact. The pusher and the moving contact are connected by a leaf spring. However, due to the weak rigidity of the existing leaf spring, it deforms flexibly during the force transmission process, resulting in an unstable structure and low force transmission efficiency. When the moving contact and the static contact are closed, the contact is prone to bounce back, which will cause arcing and ablation, silver layer splashing, bonding and welding, etc., which is a technical problem that needs to be solved in this field. Summary of the invention

[0004] Based on this, it is necessary to provide an elastic structure, a moving contact assembly and a relay to address the above-mentioned technical problems.

[0005] The present application provides an elastic structure for a dynamic contact assembly, the elastic structure comprising:

[0006] a first elastic member, the first elastic member comprising a first supporting portion and a first elastic portion connected to each other, the first supporting portion being configured to elastically contact the movable contact member, and the first elastic portion being configured to elastically contact the pushing member;

[0007] The second elastic member has a first contact portion and a second contact portion, the first contact portion is configured to elastically contact at least one of the first supporting portion and the moving contact member, and the second contact portion is configured to elastically contact at least one of the first elastic portion and the pushing member.

[0008] In one embodiment, the first supporting portion is configured to be connected to a moving contact member, and the first elastic portion is configured to be connected to a pushing member; and / or,

[0009] The first contact portion has at least one first contact region and at least one second contact region, the first contact region is configured to be in elastic contact with the first support portion, and the second contact region is configured to be in elastic contact with the moving contact piece.

[0010] In one embodiment, the first contact area of the first contact part is fixedly connected to the first support part; and / or,

[0011] The second contact area of the first contact part is configured to be fixedly connected to the moving contact part.

[0012] In one embodiment, the second contact area of the first contact part is configured to be indirectly connected to the moving contact part through a moving magnetic conductor.

[0013] In one embodiment, the second elastic part includes a connected second support part and a second elastic part. The first contact part is located on the second support part, and the second contact part is located on the second elastic part.

[0014] In one embodiment, the first contact part is configured to elastically contact at least one first force-bearing contact point of the first support part or the moving contact part, and the second contact part is configured to elastically contact at least one second force-bearing contact point of the first elastic part or the pushing part; wherein, the plane passing through the first force-bearing contact point and perpendicular to the moving direction of the moving contact part is defined as the first contact force-bearing surface, and the plane passing through the second force-bearing contact point and perpendicular to the moving direction of the moving contact part is defined as the second contact force-bearing surface. The second elastic part is located between the first contact force-bearing surface and the second contact force-bearing surface; or,

[0015] The first contact part is configured to be in surface contact with at least one of the first support part and the moving contact part; or,

[0016] The second contact part is configured to be in surface contact with at least one of the first elastic part and the pushing part.

[0017] In one embodiment, the second contact part is configured to elastically contact at least one second force-bearing contact point of the first elastic part, and at least one of the second force-bearing contact points is directly opposite to the pushing part in the moving direction of the moving contact part.

[0018] In one embodiment, the elastic structure includes:

[0019] A third elastic part, which includes a connected third support part and a third elastic part. The third support part is configured to at least elastically contact the first elastic part, and the third elastic part is configured to elastically contact the base of the relay.

[0020] In one embodiment, the third support part is configured to elastically contact at least one of the first support part and the moving contact part; and / or,

[0021] The third elastic part is configured to be in elastic contact with the base of the relay directly or indirectly.

[0022] In one embodiment, the third support part is configured to be fixedly connected to at least one of the first support part and the moving contact; and / or,

[0023] The third elastic part is configured to be directly connected to the base of the relay; and / or,

[0024] The third elastic part is configured to be movably connected to the base of the relay.

[0025] In one embodiment, the moving contact is configured to move between a closed position and an open position, and the third elastic member is configured to apply a force suitable for moving towards the closed position to the moving contact.

[0026] In one embodiment, the first elastic member includes at least two unit elastic members, each unit elastic member includes the connected first support part and the first elastic part, and at least one of the unit elastic members is provided with the second elastic member.

[0027] In one embodiment, at least two unit elastic members include a first unit elastic member and a second unit elastic member;

[0028] The first contact part of the second elastic member is configured to be in elastic contact with at least one of the first support part of the first unit elastic member and the moving contact, and the second contact part of the second elastic member is configured to be in elastic contact with at least one of the first elastic part of the first unit elastic member and the pushing member;

[0029] The third support part of the third elastic member is configured to be in elastic contact with at least one of the first support part of the second unit elastic member and the moving contact.

[0030] In one embodiment, the number of the moving contacts is configured to be at least two, at least one of the moving contacts is provided with a current-carrying contact, at least one of the moving contacts is provided with an arcing contact, the first unit elastic member is configured to be connected to the moving contact provided with the current-carrying contact, and the second unit elastic member is configured to be connected to the moving contact provided with the arcing contact.

[0031] This application provides a moving contact assembly, and the moving contact assembly includes:

[0032] At least one of a moving contact and a pushing member;

[0033] The elastic structure, and the first elastic member of the elastic structure is configured to connect at least one of the moving contact and the pushing member.

[0034] In one embodiment, the number of the moving contact members is configured to be at least two, at least one of the moving contact members is provided with an arcing contact, and at least one of the moving contact members is provided with a current-carrying contact.

[0035] In one embodiment, at least two of the moving contact members include a first moving contact member and a second moving contact member, the first moving contact member is provided with at least one current-carrying contact, and the second moving contact member is provided with at least one arcing contact.

[0036] The present application provides a relay, and the relay includes:

[0037] A base;

[0038] A static contact assembly, the static contact assembly is disposed on the base, and the static contact assembly includes a static contact member;

[0039] The moving contact assembly, the moving contact member of the moving contact assembly is in a non-direct contact state with the base;

[0040] A magnetic circuit part, the magnetic circuit part is configured to drive the moving contact member to switch between a closed position and an open position. When moving from the open position towards the closed position, the moving contact member moves towards the static contact member, and when moving from the closed position towards the open position, the moving contact member moves away from the static contact member.

[0041] In one embodiment, the driving mechanism of the magnetic circuit part is configured as a rotary driving mechanism, a linear driving mechanism, a clapper driving mechanism or a motor driving mechanism; and / or,

[0042] The moving contact member has an extending direction, and moving contacts are respectively arranged at both ends of the moving contact member along its extending direction. The moving contacts are configured to contact static contacts of the static contact member, wherein the moving contacts are configured as arcing contacts or current-carrying contacts.

[0043] In the above elastic structure, moving contact assembly and relay, due to the weak stiffness of the first elastic member, it undergoes flexible deformation during the force transmission process, so the structure is unstable and the force transmission efficiency is low, resulting in a large deformation of the elastic structure after being stressed between the pushing member and the moving contact member. When a second elastic member is added to the elastic structure, after the elastic structure is stressed between the pushing member and the moving contact member, the second elastic member can provide an additional elastic supporting force between the pushing member and the moving contact member. This elastic supporting force can be applied in the direction from the pushing member to the moving contact member. Furthermore, when the moving contact member and the static contact member are in closed contact, the elastic supporting force can also be used to maintain the contact stability between the moving contact member and the static contact member, resist contact bounce, and avoid situations such as arcing ablation, silver layer sputtering adhesion and welding. Brief Description of the Drawings

[0044] Figure 1 The plan view of the initial state of the relay provided by an embodiment of the present application.

[0045] Figure 2 As Figure 1 shown, the A-A cross-sectional view of the initial state of the relay.

[0046] Figure 3 As Figure 1 shown, the perspective view of the initial state of the relay.

[0047] Figure 4 The plan view of the open state of the relay provided by an embodiment of the present application.

[0048] Figure 5 As Figure 4 shown, the B-B cross-sectional view of the open state of the relay.

[0049] Figure 6 The plan view of the closed state of the relay provided by an embodiment of the present application.

[0050] Figure 7 As Figure 6 shown, the C-C cross-sectional view of the closed state of the relay.

[0051] Figure 8 The plan view of the moving contact assembly provided by an embodiment of the present application.

[0052] Figure 9 As Figure 8 shown, the perspective view of the moving contact assembly.

[0053] Figure 10 As Figure 8 shown, the exploded view of the moving contact assembly.

[0054] Figure 11 The exploded view of the moving contact assembly provided by another embodiment of the present application.

[0055] Figure 12 The plan view of the first elastic member provided by an embodiment of the present application.

[0056] Figure 13 The plan view of the second elastic member provided by an embodiment of the present application.

[0057] Figure 14 As Figure 13 shown, the perspective view of the second elastic member.

[0058] Figure 15 The plan view of the third elastic member provided by an embodiment of the present application.

[0059] Figure 16 is the perspective view of the third elastic member as shown in Figure 15 the figure.

[0060] Figure 17 is the force-bearing state diagram of the first elastic member without setting the second elastic member provided by an embodiment of the present application.

[0061] Figure 18 is the force-bearing state diagram of the first elastic member when setting the second elastic member provided by an embodiment of the present application.

[0062] Figure 19 is the plan view of the second elastic member of another embodiment of the moving contact assembly provided by an embodiment of the present application.

[0063] Figure 20 is the plan view of the second elastic member provided by another embodiment of the present application.

[0064] Figure 21 is as Figure 20 shown in the perspective view of the second elastic member.

[0065] Figure 22 is the plan view of the moving contact assembly provided by yet another embodiment of the present application.

[0066] Figure 23 is as Figure 22 shown in the perspective view of the moving contact assembly.

[0067] Reference numerals in the drawings:

[0068] 10, base; 20, moving contact assembly; 30, static contact assembly;

[0069] 100, elastic structure; 200, moving contact member; 300, pushing member; 400, moving magnetic conductor; 500, closed position; 600, open position;

[0070] 1000, first elastic member; 2000, second elastic member; 3000, third elastic member;

[0071] 1100, first support portion; 1200, first elastic portion; 1110, first force-bearing contact point; 1210, second force-bearing contact point; 1111, first contact force-bearing surface; 1211, second contact force-bearing surface; 1001, first unit elastic member; 1002, second unit elastic member;

[0072] 2100, second support portion; 2200, second elastic portion; 2110, first contact portion; 2210, second contact portion; 2111, first contact area; 2112, second contact area;

[0073] 3100, the third supporting part; 3200, the third elastic part;

[0074] 210, moving contact; 211, current-carrying contact; 212, arcing contact; 201, the first moving contact member; 202, the second moving contact member;

[0075] 31, static contact member; 32, static contact point. Specific embodiments

[0076] To make the above objects, features, and advantages of the present application more obvious and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0077] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0078] In addition, if these terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0079] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0080] In this application, unless otherwise clearly defined and limited, if there is a description such as the first feature being "on" or "under" the second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0081] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0082] Refer to Figures 1 to 7 As shown, this application provides a relay, and the relay includes structures such as a base 10, a moving contact assembly 20, a static contact assembly 30, and a magnetic circuit part. As Figure 1 and Figure 2 shown, the base 10 serves as the assembly basis for structures such as the moving contact assembly 20, the static contact assembly 30, and the magnetic circuit part. The shape, material, size, etc. of the base 10 can all be designed according to actual needs and are not limited here. For example, an inner cavity for assembly can be provided inside the base 10, and the moving contact assembly 20 and the static contact assembly 30 can be disposed in the inner cavity of the base 10. The moving contact assembly 20 includes at least one moving contact member 200, and the moving contact member 200 can be provided with at least one moving contact point 210. The static contact assembly 30 includes at least one static contact member 31, and the static contact member 31 can be provided with at least one static contact point 32.

[0083] Continue to refer to Figures 4 to 7As shown, a magnetic circuit part (not shown) can be configured to drive the moving contact 200 to switch between a closed position 500 and an open position 600. As Figure 4 and Figure 5 shown, the open position 600 is the position where the moving contact 200 is in contact with the static contact 31. As Figure 6 and Figure 7 shown, the closed position 500 is the position where the moving contact 200 is separated from the static contact 31. Under the control of the magnetic circuit part, when the moving contact 200 moves from the open position 600 towards the closed position 500, the moving contact 200 can move downward towards the static contact 31 as Figure 4 and Figure 5 shown, and is converted into a closed state as Figure 6 and Figure 7 shown. When the moving contact 200 moves from the closed position 500 towards the open position 600, the moving contact 200 can move upward away from the static contact 31 as Figure 6 and Figure 7 shown, and is converted into an open state as Figure 4 and Figure 5 shown.

[0084] When the magnetic circuit part (not shown) drives the moving contact 200 to switch between the closed position 500 and the open position 600, the moving contact 200 of the moving contact assembly 20 can be set to be in a direct contact state or a non-direct contact state with the base 10. For example, when the moving contact 200 is in a direct contact state with the base 10, a part of the moving contact 200 can be connected to the base 10, and another part of the moving contact 200 can move between the closed position 500 and the open position 600 under the control of the magnetic circuit part. Or, when the moving contact 200 is in a non-direct contact state with the base 10, the moving contact 200 can be completely unconnected to the base 10, and the whole moving contact 200 can move between the closed position 500 and the open position 600 under the control of the magnetic circuit part, that is, the structural design as Figures 1 to 7 shown. Those skilled in the art can choose according to actual needs, which is not limited here.

[0085] The driving mechanism of the above magnetic circuit part can be configured as a rotary driving mechanism, a linear driving mechanism, a clapper driving mechanism, a motor driving mechanism or a driving mechanism in other ways, which is not limited here. Among them, the rotary driving mechanism is a rotary magnetic circuit, that is, a permanent magnet is used to provide a continuous magnetic flux, and the magnetic flux path is changed by a rotating magnetic conduction component to realize the bistable switching (closing or opening) of the moving contact 210 and the static contact 32. The linear driving mechanism is a linear magnetic circuit, that is, a permanent magnet is used to provide a continuous magnetic flux, and the magnetic flux path is changed by a linearly moving magnetic conduction component to realize the bistable switching (closing or opening) of the moving contact 210 and the static contact 32. The motor driving mechanism generates a transient magnetic field through the coil pulse current, which is superimposed or cancelled with the permanent magnet magnetic field, breaking the original magnetic circuit balance and driving the mechanical component (rotating rotor or linear moving iron core) to move, so as to realize the bistable switching (closing or opening) of the moving contact 210 and the static contact 32.

[0086] Referring to Figure 8 As shown in FIGS. 5 to 11, regarding the moving contact assembly 20 mentioned above, the moving contact assembly 20 may include at least one of a moving contact member 200 and a pushing member 300, for example, it includes both a mutually cooperating moving contact member 200 and a pushing member 300 at the same time. The elastic structure 100 is mainly used to provide elastic connection, for example Figure 8 and Figure 9 As shown, the first elastic member 1000 included in the elastic structure 100 can be configured to connect at least one of the moving contact member 200 and the pushing member 300. For example, a part of the first elastic member 1000 is connected to the moving contact member 200, and the other part is connected to the pushing member 300, so that the first elastic member 1000 is elastically connected between the moving contact member 200 and the pushing member 300.

[0087] The moving contact member 200 has an extending direction, and moving contacts 210 are respectively arranged at both ends of the moving contact member 200 along its extending direction, so that the moving contact member 200 is configured in the structural design form of a conductive bridge. The moving contacts 210 of the moving contact member 200 can be configured to contact the static contacts 32 of the static contact member 31. Among them, the moving contacts 210 can be configured as arcing contacts 212 or current-carrying contacts 211. The arcing contacts 212 mainly act on breaking and closing the load circuit. The current-carrying contacts 211 mainly act on shunting after the circuit is closed. The contact gap between the arcing contacts 212 and the static contacts 32 in the assembly design is smaller than the contact gap between the current-carrying contacts 211 and the static contacts 32. Therefore, when switching between the closed state and the open state of the relay, the arcing contacts 212 and the static contacts 32 need to be closed first and then separated, and correspondingly, the current-carrying contacts 211 and the static contacts 32 need to be closed later and separated first.

[0088] For example, the number of movable contact members 200 can be configured to be at least two. Therefore, at least one movable contact member 200 can set the movable contact 210 as an arcing contact 212, and at least one movable contact member 200 can set the movable contact 210 as a current-carrying contact 211. In one embodiment, at least two movable contact members 200 can include a first movable contact member 200 and a second movable contact member 200. The first movable contact member 200 sets at least one current-carrying contact 211, and the second movable contact member 200 sets at least one arcing contact 212. For example, the number of movable contact members 200 can be configured to be two, namely the first movable contact member 200 and the second movable contact member 200. The first movable contact member 200 and the second movable contact member 200 can both be set in the structural design form of the aforementioned movable conductive bridge and have an extending direction. At this time, the first movable contact member 200 can set two movable contacts 210 as arcing contacts 212, and the second movable contact member 200 can set two movable contacts 210 as current-carrying contacts 211. Those skilled in the art can select a suitable structural design according to actual needs, which is not limited herein.

[0089] Regarding the elastic structure 100 mentioned above, the elastic structure 100 can include a first elastic member 1000. At the same time, the elastic structure 100 can also be provided with a second elastic member 2000 or a third elastic member 3000 that can cooperate with the first elastic member 1000 according to requirements. For example, referring to Figure 10 as shown, the elastic structure 100 can include a first elastic member 1000, a second elastic member 2000, and a third elastic member 3000. Or, referring to Figure 11 as shown, the elastic structure 100 can include a first elastic member 1000 and a second elastic member 2000, but does not include the third elastic member 3000. Or, the elastic structure 100 can also include a first elastic member 1000 and a third elastic member 3000, but does not include the second elastic member 2000. In addition, those skilled in the art can also select other structural designs of the elastic structure 100 according to requirements, which is not limited herein. The following will describe different embodiments of the elastic structure 100 mentioned above.

[0090] As Figure 12 shown, the first elastic member 1000 can include a connected first support portion 1100 and a first elastic portion 1200. The first support portion 1100 and the first elastic portion 1200 are both part of the structure of the first elastic member 1000. Based on their support function and elastic function, their positions and sizes in the first elastic member 1000 are determined. Among them, the first support portion 1100 is configured to elastically contact the movable contact member 200, and the first elastic portion 1200 is configured to elastically contact the pushing member 300.

[0091] The second elastic member 2000 is as Figure 13 and Figure 14As shown, the second elastic member 2000 has a first contact portion 2110 and a second contact portion 2210. In one embodiment, the second elastic member 2000 may include a connected second support portion 2100 and a second elastic portion 2200. Both the second support portion 2100 and the second elastic portion 2200 are part of the structure of the second elastic member 2000. Based on their support function and elastic function, the positions and sizes of the two in the second elastic member 2000 are determined. Among them, the first contact portion 2110 may be located on the second support portion 2100, that is, the first contact portion 2110 is some part or parts of the second support portion 2100, and the second contact portion 2210 is located on the second elastic portion 2200, that is, the second contact portion 2210 is some part or parts of the second elastic portion 2200.

[0092] The first contact portion 2110 may be configured to elastically contact at least one of the first support portion 1100 and the moving contact member 200. For example, the first contact portion 2110 may be configured to elastically contact either the first support portion 1100 or the moving contact member 200, or may elastically contact both the first support portion 1100 and the moving contact member 200 simultaneously. At the same time, the second contact portion 2210 may be configured to elastically contact at least one of the first elastic portion 1200 and the pushing member 300. For example, the second contact portion 2210 may be configured to elastically contact either the first elastic portion 1200 or the pushing member 300, or may elastically contact both the first elastic portion 1200 and the pushing member 300 simultaneously.

[0093] Therefore, the second elastic member 2000 can form an elastic support force between the moving contact member 200 and the pushing member 300 based on its first contact portion 2110 and second contact portion 2210. By using the elastic support force provided by the second elastic member 2000, the insufficient support force of the first elastic member 1000 can be compensated. Figure 17 And Figure 18 It can be known that in the state where the second elastic member 2000 is not provided, due to the weak stiffness of the second elastic member 2000 (the existing leaf spring), it undergoes flexible deformation during the process of the pushing member 300 transmitting the acting force to the moving contact member 200, resulting in insufficient support force, and thus its structure is unstable and the acting force transmission efficiency is low.

[0094] Therefore, when the moving contact member 200 is closed with the static contact member 31, the moving contact member 200 is prone to contact bounce (that is, the moving contact member 200 will bounce back in the direction away from the static contact member 31 after contacting the static contact member 31). The contact bounce phenomenon will cause arc ablation, silver layer splash bonding and welding, etc. To solve this technical problem, the second elastic member 2000 is added to the elastic structure 100 in this application.

[0095] Such as Figure 17As shown, in an exemplary embodiment, when the second elastic member 2000 is not provided, the elastic structure 100 will undergo a large deformation after being stressed between the pushing member 300 and the moving contact member 200, causing the height of the elastic structure 100 to decrease to 4.86. When the elastic structure 100 includes the first elastic member 1000 and the second elastic member 2000, or when the elastic structure 100 includes the first elastic member 1000, the second elastic member 2000 and the third elastic member 3000. After adding the second elastic member 2000, as Figure 18 shown, in this exemplary embodiment, after the elastic structure 100 is stressed between the pushing member 300 and the moving contact member 200, the height of the elastic structure 100 can only decrease to 5.26.

[0096] It should be noted that the above two data are obtained from a single embodiment and are used to compare the elastic support force effect provided by the second elastic member 2000. In other embodiments, they can also be other specific values.

[0097] According to the comparison of the two data, the second elastic member 2000 can provide an additional elastic support force between the pushing member 300 and the moving contact member 200. This elastic support force can be applied by the pushing member 300 in the direction of the moving contact member 200. Thus, when the moving contact member 200 and the static contact member 31 are in closed contact, the elastic support force can also be used to maintain the contact stability between the moving contact member 200 and the static contact member 31, resist the contact bounce mentioned above, and avoid situations such as arc ablation, silver layer sputtering and bonding welding.

[0098] Regarding the process of the moving contact member 200 moving towards the static contact member 31, when the moving contact member 200 contacts the static contact member 31, the pushing member 300 will continue to apply a certain degree of pressure to the moving contact member 200, causing the moving contact member 200 to further abut against the static contact member 31. As a result, the moving contact member 200 can enter the overtravel state, that is, when the moving contact member 200 moves between the closed position 500 and the open position 600, the first elastic member 1000 can be configured to start entering the overtravel state when the moving contact member 200 reaches the closed position 500.

[0099] In one embodiment, the first contact portion 2110 may be configured to always abut at least one of the first support portion 1100 and the moving contact member 200 before entering the overtravel state, and the second contact portion 2210 may also be configured to always abut at least one of the first elastic portion 1200 and the pushing member 300 before entering the overtravel state. When the first contact portion 2110 or the second contact portion 2210 is in a state of always abutting, the elastic supporting force mentioned above can be always applied between the pushing member 300 and the moving contact member 200 before entering the overtravel state, so that the contact stability between the moving contact member 200 and the static contact member 31 can be maintained at the moment when the moving contact member 200 and the static contact member 31 contact, thereby avoiding the problem of contact rebound.

[0100] The first support portion 1100 may always be in direct or indirect contact with the moving contact member 200, or the first support portion 1100 may also be in direct or indirect contact with the moving contact member 200 when it is necessary to provide an elastic support force. Similarly, the first elastic portion 1200 may also always be in direct or indirect contact with the pushing member 300, or the first elastic portion 1200 may be in direct or indirect contact with the pushing member 300 when it is necessary to provide an elastic support force. Therefore, in one embodiment, the first support portion 1100 may be configured to always be connected to the moving contact member 200, and the first elastic portion 1200 may be configured to always be connected to the pushing member 300.

[0101] The first contact portion 2110 can be elastically contacted with the first support portion 1100 or the movable contact member 200 in a variety of ways. For example, in one embodiment, the first contact portion 2110 can be configured to have at least one first contact area 2111 and at least one second contact area 2112, the first contact area 2111 is configured to be elastically contacted with the first support portion 1100, and the second contact area 2112 is configured to be elastically contacted with the movable contact member 200. Figure 8 , Figure 13 and Figure 14 As shown, the first contact portion 2110 may have two first contact regions 2111 and one second contact region 2112, and the second contact region 2112 is located between the two first contact regions 2111. Figure 8 As shown, two first contact areas 2111 can elastically contact two first supporting parts 1100 of the first elastic member 1000 on both sides, and one second contact area 2112 can elastically contact the movable contact member 200 in the middle. In addition, those skilled in the art can also use other elastic contact methods, which are not limited here.

[0102] In one embodiment, the first contact area 2111 of the first contact portion 2110 may elastically contact the first support portion 1100 when elastic support force needs to be provided, or may be fixedly connected all the time by means of threads, snap connection, etc. The second contact area 2112 of the first contact portion 2110 may elastically contact the moving contact member 200 when elastic support force needs to be provided, or may be fixedly connected all the time by means of threads, snap connection, etc. Moreover, in one embodiment, continue to refer to Figure 8 and Figure 9 As shown, the second contact area 2112 of the first contact portion 2110 may also be configured to be indirectly connected to the moving contact member 200 through the moving magnetic conductor 400. At this time, the moving magnetic conductor 400 is arranged on the moving contact member 200, and the second contact area 2112 is fixedly connected to the moving magnetic conductor 400 by means of threads, snap connection, etc., and then is fixedly connected to the moving contact member 200.

[0103] Continue to refer to Figures 19 to 21 As shown, in one embodiment, the second elastic member 2000 may also adopt other structural design forms. For example, it may be defined that the first contact portion 2110 is configured to elastically contact at least one first force-bearing contact point 1110 of the first support portion 1100 or the moving contact member 200, and the second contact portion 2210 is configured to elastically contact at least one second force-bearing contact point 1210 of the first elastic portion 1200 or the pushing member 300, and the plane passing through the first force-bearing contact point 1110 and perpendicular to the moving direction of the moving contact member 200 is defined as the first contact force-bearing surface 1111, and the plane passing through the second force-bearing contact point 1210 and perpendicular to the moving direction of the moving contact member 200 is defined as the second contact force-bearing surface 1211. Therefore, it may be defined that the second elastic member 2000 is located between the first contact force-bearing surface 1111 and the second contact force-bearing surface 1211, and the structure of the second elastic member 2000 is designed in this design direction.

[0104] At this time, the entire structure of the second elastic member 2000 may be within the space enclosed between the first contact force-bearing surface 1111 and the second contact force-bearing surface 1211 after assembly. This design enables the pushing member 300 to use the second elastic member 2000 to transmit the acting force to the moving contact member 200. When the second elastic member 2000 applies the elastic support force between the two, the elastic support force applied by the second elastic member 2000 can be directly transmitted from the pushing member 300 to the moving contact member 200 along the shortest path, ensuring the efficiency and effect of the elastic support force transmission. Avoid that in other structures, when the second elastic member 2000 is transmitted between the pushing member 300 and the moving contact member 200, it also needs to go through a folded-back path. Because once there is a folded-back transmission path, the elastic support force applied by the second elastic member 2000 will be lost, reducing the elastic support effect, and further reducing the resistance effect to contact bounce.

[0105] For example, refer to Figure 19As shown, if it is specified that the first force-bearing contact point 1110 is located on the movable contact member 200, at this time, the first contact portion 2110 can be configured to elastically contact the first force-bearing contact point 1110 of the movable contact member 200. If it is specified that the second force-bearing contact point 1210 is located on the first elastic portion 1200, at this time, the second contact portion 2210 can be configured to elastically contact the second force-bearing contact point 1210 of the first elastic portion 1200. As Figure 19 shown, at this time, the first contact force-bearing surface 1111 passes through the first force-bearing contact point 1110 of the movable contact member 200 and is perpendicular to the movement direction of the movable contact member 200. The second contact force-bearing surface 1211 passes through the second force-bearing contact point 1210 of the first elastic portion 1200 and is perpendicular to the movement direction of the movable contact member 200. Those skilled in the art can also select other first force-bearing contact points 1110 and second force-bearing contact points 1210 according to the force transmission requirements, which are not limited herein.

[0106] In addition, the first contact portion 2110 can be configured to adopt a multi-point contact manner with at least one of the first support portion 1100 and the movable contact member 200, that is, to simultaneously contact a plurality of first force-bearing contact points 1110. The second contact portion 2210 can also be configured to adopt a multi-point contact manner with at least one of the first elastic portion 1200 and the pushing member 300, that is, to simultaneously contact a plurality of second force-bearing contact points 1210. The multi-point contact manner can provide better elastic support force. Alternatively, the first contact portion 2110 can be configured to be in surface contact with at least one of the first support portion 1100 and the movable contact member 200. The second contact portion 2210 can also be configured to be in surface contact with at least one of the first elastic portion 1200 and the pushing member 300. The surface contact manner can further provide better elastic support force.

[0107] Moreover, when the second force-bearing contact point 1210 is on the pushing member 300, better elastic support force can be provided. Alternatively, when the second force-bearing contact point 1210 is on the first elastic portion 1200, the closer the second force-bearing contact point 1210 is to the pushing member 300, the better the elastic support force that can be provided. Therefore, in one embodiment, the second contact portion 2210 can be configured to elastically contact at least one second force-bearing contact point 1210 of the first elastic portion 1200. At this time, at least one second force-bearing contact point 1210 can be directly opposite to the pushing member 300 in the movement direction of the movable contact member 200, thereby providing better elastic support force.

[0108] When the elastic structure 100 includes the first elastic member 1000 and the third elastic member 3000, or the elastic structure 100 includes the first elastic member 1000, the second elastic member 2000, and the third elastic member 3000. The third elastic member 3000 can be configured to elastically contact at least one of the first elastic member 1000 and the moving contact member 200, that is, the third elastic member 3000 elastically contacts any one of the first elastic member 1000 and the moving contact member 200, or the third elastic member 3000 can elastically contact both the first elastic member 1000 and the moving contact member 200 simultaneously.

[0109] Moreover, when the third elastic member 3000 elastically contacts at least one of the first elastic member 1000 and the moving contact member 200, the third elastic member 3000 can be configured to elastically contact at least one of the first elastic member 1000 and the moving contact member 200 when elastic force needs to be provided, or can also be configured to always elastically contact at least one of the first elastic member 1000 and the moving contact member 200. At the same time, the third elastic member 3000 can be configured to directly elastically contact at least one of the first elastic member 1000 and the moving contact member 200, or can also be configured to indirectly elastically contact at least one of the first elastic member 1000 and the moving contact member 200 through other structures.

[0110] Since the moving contact member 200 reciprocates between the closed position 500 and the open position 600, therefore, the third elastic member 3000 can be configured to apply an acting force suitable for the moving contact member 200 to move towards the closed position 500 to at least one of the first elastic member 1000 and the moving contact member 200, that is, this acting force can force the moving contact member 200 to move towards the direction of the static contact member 31, ensuring that the moving contact member 200 can stably contact the static contact member 31, and having the effect of avoiding contact bounce.

[0111] As can be seen from the above, both the second elastic member 2000 and the third elastic member 3000 alone have the effect of avoiding contact bounce, but their acting methods are different. The acting method of the second elastic member 2000 is mainly to apply an elastic supporting force between the pushing member 300 and the moving contact member 200, and the application method can be directly applied between the pushing member 300 and the moving contact member 200, or can also be indirectly applied between the pushing member 300 and the moving contact member 200, for example, indirectly applied through the first elastic member 1000.

[0112] In contrast, the third elastic member 3000 is not limited to applying elastic support force between the push member 300 and the dynamic contact member 200. Therefore, whether before the dynamic contact member 200 contacts the static contact member 31 or after the contact enters the overtravel state, a relatively obvious elastic force can be formed to provide a better elastic force effect. For example, the third elastic member 3000 can be based on the base 10 or other components in the base 10 as a fulcrum, and the third elastic member 3000 can exert the energy storage and elastic force release effect of the third elastic member 3000, and then act on at least one of the first elastic member 1000 and the dynamic contact member 200, forcing the dynamic contact member 200 to move toward the static contact member 31.

[0113] Since the third elastic member 3000 can form a relatively obvious elastic force and provide a better elastic force effect whether before the moving contact 200 and the static contact 31 contact or after the contact enters the overtravel state, when the moving contact 200 has both the current-carrying contact 211 and the arcing contact 212, the third elastic member 3000 can also be used to stably realize the "first closing and then breaking" of the arcing contact 212, thereby ensuring the stability of the contact resistance of the current-carrying contact 211.

[0114] For example, when the moving contact 200 is closed relative to the static contact 31, the third elastic member 3000 can ensure that the arcing contact 212 of the moving contact 200 and the static contact 32 of the static contact 31 are closed first based on a better elastic force, and the arc will be concentrated on the arcing contact 212 that contacts first and burns when closing. At the same time, the elastic force of the third elastic member 3000 is not used to be applied between the current-carrying contact 211 of the moving contact 200 and the static contact 32 of the static contact 31, so that when closing, the current-carrying contact 211 of the moving contact 200 and the static contact 32 of the static contact 31 can be closed relatively backward to avoid the current-carrying contact 211 from burning.

[0115] Similarly, when the moving contact 200 is disconnected relative to the static contact 31, the third elastic member 3000 will apply an elastic force suitable for keeping the arcing contact 212 of the moving contact 200 and the static contact 32 of the static contact 31 closed. At this time, the current-carrying contact 211 of the moving contact 200 and the static contact 32 of the static contact 31 will be disconnected first, and the current-carrying contact 211 will not be burned when disconnected first. The elastic force of the third elastic member 3000 will ensure that the arcing contact 212 of the moving contact 200 and the static contact 32 of the static contact 31 are disconnected later, and the arc will be concentrated on the arcing contact 212 that is disconnected later.

[0116] It can be seen from this that in the above technical solution, it is not simply the design solution using the gap difference that ensures the "first closing and then breaking" of the arcing contact 212. Instead, on the basis of the design of the gap difference, the elastic force of the third elastic member 3000 is utilized to achieve the "first closing and then breaking" of the arcing contact 212. This structural design can more stably achieve the "first closing and then breaking" of the arcing contact 212, thereby ensuring the stability of the contact resistance of the current-carrying contact 211. Of course, those skilled in the art can also, during the structural design, according to the design requirements, only utilize the elastic force of the third elastic member 3000 to achieve the "first closing and then breaking" of the arcing contact 212, which is not limited herein.

[0117] Regarding the above-mentioned third elastic member 3000, in one embodiment, continue to refer to Figure 15 and Figure 16 As shown, the third elastic member 3000 may include a connected third support portion 3100 and a third elastic portion 3200. Both the third support portion 3100 and the third elastic portion 3200 are part of the structure of the third elastic member 3000. Based on their support function and elastic function, the positions and sizes of the two in the third elastic member 3000 are determined. Therefore, the third support portion 3100 may be configured to at least elastically contact the first elastic member 1000, and the third elastic portion 3200 may be configured to elastically contact the base 10 of the relay.

[0118] At this time, when the moving contact member 200 moves between the open position 600 and the closed position 500, the third elastic member 3000 will be deformed under force, form the storage of elastic force by means of elastic contact with the base 10, and enable the third elastic member 3000 to apply an elastic force toward the first elastic member 1000. The elastic force applied by the third elastic member 3000 to the first elastic member 1000 can be configured to be suitable for causing the moving contact member 200 to move toward the static contact member 31, or can be configured to be suitable for causing the moving contact member 200 to move away from the static contact member 31.

[0119] For example, in one embodiment, when the moving contact member 200 is configured to move between the closed position 500 and the open position 600, the third elastic member 3000 can be configured to directly apply a force suitable for moving toward the closed position 500 to the moving contact member 200, or indirectly apply a force suitable for moving toward the closed position 500 to the moving contact member 200 through the first elastic member 1000. Those skilled in the art can set according to actual needs, which is not limited herein.

[0120] In one embodiment, the third support portion 3100 may be configured to elastically contact at least one of the first support portion 1100 and the moving contact member 200. For example, the third support portion 3100 may be configured to elastically contact either the first support portion 1100 or the moving contact member 200, or may elastically contact both the first support portion 1100 and the moving contact member 200 simultaneously. Alternatively, the third support portion 3100 may also be fixedly connected to at least one of the first support portion 1100 and the moving contact member 200 by means of threads, snap connections, etc. At the same time, the third elastic portion 3200 is configured to elastically contact the base 10 of the relay directly or indirectly. For example, the third elastic portion 3200 may be fixedly connected to the base 10 of the relay directly or indirectly by means of threads, snap connections, etc. Or, the third elastic portion 3200 may be movably connected to the base 10 of the relay. For example, the third elastic portion 3200 may be slidably connected to the base 10 of the relay by means of a sliding hole, a sliding rail, etc.

[0121] Referring to Figure 22 and Figure 23 As shown, the first elastic member 1000 may be a single independent structure, and only one first support portion 1100 and one first elastic portion 1200 may be provided in the first elastic member 1000. Alternatively, a plurality of first support portions 1100 and a plurality of first elastic portions 1200 may be provided in the first elastic member 1000. For example, in one embodiment, the first elastic member 1000 may include at least two unit elastic members, such that the first elastic member 1000 can be divided into two or more unit structures (i.e., unit elastic members). At this time, each unit elastic member may include a connected first support portion 1100 and a first elastic portion 1200.

[0122] In some embodiments, at least one unit elastic member may be provided with a second elastic member 2000, or at least one unit elastic member may be provided with a third elastic member 3000. For example, when there are two unit elastic members, as Figure 10 shown, one unit elastic member may be provided with a second elastic member 2000, and the other unit elastic member may be provided with a third elastic member 3000. Or, as Figure 11 shown, when there are two unit elastic members, both of the two unit elastic members may be provided with a second elastic member 2000. Those skilled in the art can select the structural design of the first elastic member 1000 and the cooperative assembly of the first elastic member 1000 with at least one of the second elastic member 2000 and the third elastic member 3000 according to actual needs, and no limitation is made here.

[0123] In one embodiment, at least two unit elastic members include a first unit elastic member 1001 and a second unit elastic member 1002, that is, there are two unit elastic members. Referring to Figure 10As shown, the first contact portion 2110 of the second elastic member 2000 can be configured to elastically contact at least one of the first support portion 1100 of the first unit elastic member 1001 and the moving contact member 200, and the second contact portion 2210 of the second elastic member 2000 can be configured to elastically contact at least one of the first elastic portion 1200 of the first unit elastic member 1001 and the pusher 300, that is, the second elastic member 2000 is provided on the first unit elastic member 1001. At the same time, the third support portion 3100 of the third elastic member 3000 is configured to elastically contact at least one of the first support portion 1100 of the second unit elastic member 1002 and the moving contact member 200, that is, the third elastic member 3000 is provided on the second unit elastic member 1002. In this embodiment, the elastic structure 100 includes the first elastic member 1000, the second elastic member 2000, and the third elastic member 3000, and constitutes an elastic combination of the second elastic member 2000 and the third elastic member 3000 relative to the first elastic member 1000.

[0124] Moreover, the number of the moving contact members 200 can be configured to be at least two. At least one moving contact member 200 is provided with a current-carrying contact 211, and at least one moving contact member 200 is provided with an arcing contact 212. For example, when the two moving contact members 200 are the first moving contact member 200 and the second moving contact member 200 respectively, the first moving contact member 200 is provided with two current-carrying contacts 211, and the second moving contact member 200 is provided with two arcing contacts 212. At this time, the first unit elastic member 1001 can be configured to be connected to the first moving contact member 200, and the second unit elastic member 1002 can be configured to be connected to the second moving contact member 200.

[0125] In the above embodiment, the second elastic member 2000 elastically contacts the first unit elastic member 1001 of the first elastic member 1000, and an elastic support force can be formed between the first moving contact member 200 and the pusher 300. By using the elastic support force provided by the second elastic member 2000, the insufficient support force of the first unit elastic member 1001 can be compensated. At the same time, the third elastic member 3000 elastically contacts the second unit elastic member 1002 of the first elastic member 1000, and an elastic support force can be formed between the second moving contact member 200 and the pusher 300. By using the elastic support force provided by the third elastic member 3000, the insufficient support force of the second unit elastic member 1002 can be compensated.

[0126] Since the action mode of the second elastic member 2000 is mainly to apply an elastic support force between the pusher 300 and the first moving contact member 200, the elastic support force of the second elastic member 2000 is not obvious before the first moving contact member 200 contacts the static contact member 31, and a relatively obvious elastic support force can be formed only after the first moving contact member 200 contacts the static contact member 31 and enters the over-travel state.

[0127] In contrast, the third elastic member 3000 can use the base 10 or other components in the base 10 as the force application points to exert the effects of energy storage and elastic force release of the third elastic member 3000. Whether before the second moving contact member 200 contacts the static contact member 31 or enters the over-travel state after contact, a relatively obvious elastic force can be formed. Therefore, the elastic force application effect of the third elastic member 3000 is more obvious than that of the second elastic member 2000.

[0128] When the first moving contact member 200 and the second moving contact member 200 are closed relative to the static contact member 31, the third elastic member 3000 can ensure that the second moving contact member 200 and the static contact member 31 are closed first based on a better elastic force. When closed, the arc will concentrate on the arc-burning contact point 212 that makes contact first and is ablated. Although the second elastic member 2000 can also provide a certain elastic support force to avoid contact bounce when the first moving contact member 200 and the static contact member 31 are closed, based on the difference in elastic force between the second elastic member 2000 and the third elastic member 3000, it can be ensured that the first moving contact member 200 and the static contact member 31 are closed later (relative to the closing of the second moving contact member 200 and the static contact member 31) during cooperative operation, and the current-carrying contact point 211 is not ablated when closed later.

[0129] Similarly, when the first moving contact member 200 and the second moving contact member 200 are disconnected relative to the static contact member 31, since the third elastic member 3000 will exert an elastic force suitable for keeping the second moving contact member 200 and the static contact member 31 closed, the third elastic member 3000 can ensure that the second moving contact member 200 and the static contact member 31 are disconnected later based on a better elastic force. When disconnected, the arc will concentrate on the arc-burning contact point 212 that is disconnected later and is ablated. Also based on the difference in elastic force between the second elastic member 2000 and the third elastic member 3000, it is allowed that the first moving contact member 200 and the static contact member 31 are disconnected first (relative to the disconnection of the second moving contact member 200 and the static contact member 31) during cooperative operation, and the current-carrying contact point 211 is not ablated when disconnected first.

[0130] It can be seen from this that in the above technical solution, it is not simply the design solution using the gap difference that ensures the arc-burning contact point 212 "closes first and disconnects later", but on the basis of the gap difference design, the difference in elastic force and assembly of the second elastic member 2000 and the third elastic member 3000 are used to achieve the "closing first and disconnecting later" of the arc-burning contact point 212. This structural design can more stably achieve the "closing first and disconnecting later" of the arc-burning contact point 212, thereby ensuring the stability of the contact resistance of the current-carrying contact point 211. Of course, those skilled in the art can also, during the structural design, according to the design requirements, only use the elastic force of the third elastic member 3000 to achieve the "closing first and disconnecting later" of the arc-burning contact point 212, which is not limited here.

[0131] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0132] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An elastic structure for a dynamic contact component, characterized in that: The elastic structure comprises: a first elastic member, the first elastic member comprising a first supporting portion and a first elastic portion connected to each other, the first supporting portion being configured to elastically contact the movable contact member, and the first elastic portion being configured to elastically contact the pushing member; The second elastic member has a first contact portion and a second contact portion, the first contact portion is configured to elastically contact at least one of the first supporting portion and the moving contact member, and the second contact portion is configured to elastically contact at least one of the first elastic portion and the pushing member.

2. The elastic structure according to claim 1, characterized in that: The first supporting portion is configured to be connected to a moving contact member, and the first elastic portion is configured to be connected to a pushing member; and / or, The first contact portion has at least one first contact region and at least one second contact region, the first contact region is configured to be in elastic contact with the first support portion, and the second contact region is configured to be in elastic contact with the movable contact.

3. The elastic structure according to claim 2, characterized in that: The first contact area of ​​the first contact portion is fixedly connected to the first supporting portion; and / or, The second contact region of the first contact portion is configured to be fixedly connected to the moving contact.

4. The elastic structure according to claim 3, characterized in that: The second contact region of the first contact portion is configured to be indirectly connected to the moving contact piece through the moving magnetic conductor.

5. The elastic structure according to claim 1, characterized in that: The second elastic member includes a second supporting portion and a second elastic portion that are connected to each other, the first contact portion is located at the second supporting portion, and the second contact portion is located at the second elastic portion.

6. The elastic structure according to claim 1, characterized in that: The first contact portion is configured to elastically contact at least one first force-bearing contact of the first supporting portion or the moving contact member, and the second contact portion is configured to elastically contact at least one second force-bearing contact of the first elastic portion or the pushing member; wherein a plane passing through the first force-bearing contact and perpendicular to the moving direction of the moving contact member is defined as a first contact force-bearing surface, a plane passing through the second force-bearing contact and perpendicular to the moving direction of the moving contact member is defined as a second contact force-bearing surface, and the second elastic member is located between the first contact force-bearing surface and the second contact force-bearing surface; or, The first contact portion is configured to be in surface contact with at least one of the first support portion and the moving contact piece; or, The second contact portion is configured to be in surface contact with at least one of the first elastic portion and the pushing member.

7. The elastic structure according to claim 6, characterized in that: The second contact portion is configured to elastically contact at least one second force-bearing contact point of the first elastic portion, and the at least one second force-bearing contact point is directly opposite to the pushing member in the direction of movement of the moving contact member.

8. The elastic structure according to claim 1, characterized in that: The elastic structure comprises: The third elastic member includes a third supporting portion and a third elastic portion connected to each other, the third supporting portion is configured to elastically contact at least the first elastic member, and the third elastic portion is configured to elastically contact the base of the relay.

9. The elastic structure according to claim 8, characterized in that: The third support portion is configured to elastically contact at least one of the first support portion and the moving contact piece; and / or, The third elastic portion is configured to be in elastic contact with the base of the relay directly or indirectly.

10. The elastic structure according to claim 9, characterized in that: The third support portion is configured to be fixedly connected to at least one of the first support portion and the moving contact member; and / or, The third elastic portion is configured to be directly connected to a base of the relay; and / or, The third elastic portion is configured to be movably connected to a base of the relay.

11. The elastic structure according to claim 8, characterized in that: The movable contact is configured to move between a closed position and an open position, and the third elastic member is configured to apply a force to the movable contact that is suitable for moving toward the closed position.

12. The elastic structure according to claim 8, characterized in that: The first elastic member includes at least two unit elastic members, each of the unit elastic members includes the first supporting portion and the first elastic portion connected to each other, and at least one of the unit elastic members is provided with the second elastic member.

13. The elastic structure according to claim 12, characterized in that: The at least two unit elastic members include a first unit elastic member and a second unit elastic member; The first contact portion of the second elastic member is configured to elastically contact at least one of the first supporting portion and the moving contact member of the first unit elastic member, and the second contact portion of the second elastic member is configured to elastically contact at least one of the first elastic portion and the pushing member of the first unit elastic member; The third supporting portion of the third elastic member is configured to elastically contact at least one of the first supporting portion of the second unit elastic member and the movable contact member.

14. The elastic structure according to claim 13, characterized in that: The number of the movable contacts is configured to be at least two, at least one of the movable contacts is provided with a current-carrying contact, and at least one of the movable contacts is provided with an arcing contact, the first unit elastic member is configured to be connected to the movable contact provided with the current-carrying contact, and the second unit elastic member is configured to be connected to the movable contact provided with the arcing contact.

15. A dynamic contact assembly, characterized in that: The dynamic contact assembly comprises: at least one of a moving contact member and a push member; According to any one of claims 1 to 14, the first elastic member of the elastic structure is configured to connect at least one of the moving contact member and the pushing member.

16. The dynamic contact assembly according to claim 15, characterized in that: The number of the movable contacts is configured to be at least two, at least one of the movable contacts is provided with an arcing contact, and at least one of the movable contacts is provided with a current-carrying contact.

17. The dynamic contact assembly according to claim 16, characterized in that: The at least two moving contacts include a first moving contact and a second moving contact. The first moving contact is provided with at least one current-carrying contact, and the second moving contact is provided with at least one arcing contact.

18. A relay, characterized in that: The relay comprises: Base; A static contact assembly, the static contact assembly is arranged on the base, and the static contact assembly includes a static contact piece; The dynamic contact assembly according to any one of claims 15 to 17, wherein the dynamic contact piece of the dynamic contact assembly is in a non-direct contact state with the base; The magnetic circuit portion is configured to drive the movable contact to switch between a closed position and an open position. When moving from the open position toward the closed position, the movable contact moves toward the static contact. When moving from the closed position toward the open position, the movable contact moves away from the static contact.

19. The relay according to claim 18, characterized in that The driving mechanism of the magnetic circuit part is configured as a rotary driving mechanism, a direct-acting driving mechanism, a snap-on driving mechanism or a motor driving mechanism; and / or, The moving contact has an extension direction, and moving contacts are respectively provided at both ends of the moving contact along the extension direction, and the moving contacts are configured as static contacts for contacting the static contact, wherein the moving contacts are configured as arcing contacts or current-carrying contacts.

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