Contact mounting structure and relay

Abstract

The application relates to a contact mounting structure and a relay, comprising a push rod configured to be movably arranged; a movable contact piece movably arranged on the push rod in a clearance fit mode; a positioning member fixedly arranged on the push rod, the positioning member and the movable contact piece being arranged in a spaced mode along a first direction of the contact mounting structure; and a poking member arranged on the positioning member to keep a relative position fixed with the push rod through the positioning member. Thus, the relative position of the poking member and the push rod can be fixed, the poking member will not be loosened and shifted after being installed, the position precision of the poking member after being installed can be ensured, the influence of a clearance tolerance caused by the clearance installation of the movable contact piece and the push rod can be eliminated, the poking member can effectively contact a matched member after moving a preset stroke, the clearance consistency of an auxiliary contact structure and the reliability of an auxiliary contact function can be ensured.

Description

Technical Field

[0001] This application relates to the technical field of electrical control devices, and in particular to a contact mounting structure and a relay. Background Technology

[0002] Currently, due to the increasing requirements for working performance and operational reliability, in addition to the traditional main contact structure, relays are also equipped with auxiliary contact structures. The auxiliary contact structure can not only serve as a signal relay station for the control circuit, transmitting commands through contact opening and closing to link indicator lights, alarms and other devices, but also achieve isolation between different circuits, reduce mutual interference between signals or circuits, and improve system stability.

[0003] Currently, the auxiliary contact structure used in mainstream relays typically combines a toggle element with a micro switch. When the actuating contact structure closes or opens, the toggle element synchronously contacts or separates from the micro switch to achieve synchronized operation of the main and auxiliary contact structures. Typically, the toggle element is mounted on the moving contact for positioning. However, this traditional mounting method has the following drawbacks: To meet overtravel design requirements, a clearance must be maintained between the moving contact and the push rod. Due to the cumulative influence of machining and assembly tolerances, there can be significant clearance tolerance fluctuations between the toggle element mounted on the moving contact and the micro switch. This results in the toggle element failing to effectively contact the micro switch after the preset travel distance, affecting the clearance consistency of the auxiliary contact structure and the reliability of the auxiliary contact function. Utility Model Content

[0004] Therefore, it is necessary to provide a contact mounting structure and relay to address the problems of traditional technologies affecting the gap consistency of auxiliary contact structures and the reliability of auxiliary contact functions.

[0005] A first aspect of this application provides a contact mounting structure, comprising:

[0006] The push rod is configured to be movable.

[0007] A movable contact piece is fitted to the push rod with a clearance fit and is movable relative to the push rod;

[0008] A positioning element, fixedly mounted on the push rod, wherein the positioning element and the movable contact piece are spaced apart along a first direction of the contact mounting structure; and

[0009] A toggle element is mounted on the positioning element to maintain a fixed relative position with the push rod via the positioning element.

[0010] This contact mounting structure is applied to relays. By mounting the moving contact and positioning element onto the push rod along a first direction, and then mounting the actuating element onto the positioning element, the moving contact and stationary contact can be aligned, and the actuating element and mating element can be aligned synchronously. Based on this, when the relay operates and drives the push rod to move, the push rod can drive the moving contact and the actuating element to move synchronously, so that the moving contact contacts the stationary contact while the actuating element simultaneously contacts the mating element. This achieves the integration of the moving contact structure (composed of the moving and stationary contacts) and the auxiliary contact structure (composed of the actuating element and mating element). (Construction) requires synchronous operation; compared with traditional technology, this application uses a positioning component fixedly mounted on the push rod, and then the actuating component is installed on the positioning component, thereby ensuring that the relative position of the actuating component and the push rod is fixed, and the actuating component will not loosen or shift after installation, thus ensuring the positional accuracy of the actuating component installation, eliminating the influence of clearance tolerance caused by the clearance installation between the moving contact piece and the push rod, ensuring that the actuating component can effectively contact the mating component after moving the preset stroke, and ensuring the clearance consistency of the auxiliary contact structure and the reliability of the auxiliary contact function.

[0011] The technical solution of this application will be further described below:

[0012] In one embodiment, the positioning member includes a positioning plate, the positioning plate having a first mounting through hole, the positioning plate being sleeved on the outside of the push rod through the first mounting through hole, the hole wall of the first mounting through hole being interference-fitted with the outer peripheral wall of the push rod;

[0013] The actuating component is assembled and fixed to the positioning plate.

[0014] In one embodiment, the positioning member further includes an elastic locking structure. The elastic locking structure has a locking hole that is aligned with and communicates with the first mounting through hole. The elastic locking structure is disposed on the positioning plate and surrounds the outer periphery of the first mounting through hole. The push rod passes through the locking hole, so that the elastic locking structure engages with the push rod, thereby assembling and fixing the positioning member with the push rod.

[0015] In one embodiment, the elastic locking structure includes at least two elastic claws, which are arranged at circumferential intervals along the first mounting through hole, and the at least two elastic claws cooperate to form the locking hole.

[0016] In one embodiment, one end of the elastic claw is connected to the wall of the first mounting through hole or the side of the positioning plate facing the movable contact piece, and the other end of the elastic claw bends and extends toward the movable contact piece, such that at least a portion of the elastic claw protrudes from the side of the positioning plate facing the movable contact piece in the first direction.

[0017] In one embodiment, the actuating element includes a connected actuating seat and an actuating arm, the actuating arm being used to contact or separate from a mating element;

[0018] The actuating seat has a second mounting through hole, which is aligned with and connected to the first mounting through hole to allow the push rod to pass through and be installed; the outer peripheral wall of the positioning plate is engaged with the hole wall of the second mounting through hole.

[0019] In one embodiment, the toggle seat and the toggle arm are integrally formed.

[0020] In one embodiment, the wall of the second mounting through hole is recessed to form a slot extending circumferentially, and the outer periphery of the positioning plate is engaged in the slot.

[0021] In one embodiment, the positioning plate and the toggle seat are integrally injection molded.

[0022] In one embodiment, the contact mounting structure further includes an elastic element and a limiting clip. The limiting clip is engaged with the end of the push rod and abuts against the side of the movable contact away from the actuating element. One end of the elastic element abuts against the movable contact, and the other end of the elastic element abuts against the actuating element or extends into the second mounting through hole and abuts against the positioning plate.

[0023] In one embodiment, the actuating element further includes a reinforcing rib plate connected to the connection between the actuating seat and the actuating arm.

[0024] In one embodiment, the wall of the second mounting through hole is formed as a tapered structure, so that the diameter of the second mounting through hole decreases from the end near the movable contact to the end away from the movable contact.

[0025] In one embodiment, the contact mounting structure further includes a positioning sleeve, which is fitted and fixed to the outside of the push rod and arranged on the side of the positioning member away from the moving contact piece, and the positioning sleeve abuts against the side of the positioning member opposite to the moving contact piece.

[0026] In one embodiment, the positioning element and the push rod are both made of metal, and the actuating element is made of plastic.

[0027] In one embodiment, the first direction of the contact mounting structure corresponds to the axial direction of the push rod and is consistent with the direction of movement of the push rod, and the first direction of the contact mounting structure is consistent with the height direction of the relay.

[0028] A second aspect of this application also proposes a relay comprising:

[0029] case;

[0030] A mating component and a stationary contact piece, wherein the mating component and the stationary contact piece are respectively mounted on the housing; and

[0031] As described in any of the above embodiments, the contact mounting structure is mounted on the housing, the moving contact is aligned with the stationary contact and can contact or separate from the stationary contact, and the actuating member is aligned with the mating member and can contact or separate from the mating member. Attached Figure Description

[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a relay according to an embodiment.

[0035] Figure 2 This is a cross-sectional structural diagram of a relay.

[0036] Figure 3 This is a schematic diagram of the internal structure of a relay according to an embodiment.

[0037] Figure 4 for Figure 3 A structural diagram from another perspective.

[0038] Figure 5 A schematic diagram of the mounting structure for the contact mounting structure.

[0039] Figure 6 This is a schematic diagram of a contact mounting structure according to one embodiment.

[0040] Figure 7 for Figure 6 A top-view structural diagram.

[0041] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure at point AA.

[0042] Figure 9This is an exploded structural diagram of a contact mounting structure according to one embodiment.

[0043] Figure 10 This is a schematic diagram of the positioning component in one embodiment.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100. Relay; 10. Contact mounting structure; 11. Push rod; 12. Moving contact; 13. Positioning component; 131. Positioning plate; 131a. First mounting through hole; 132. Elastic clamping structure; 132a. Elastic claw; 132b. Locking hole; 14. Actuating component; 141. Actuating seat; 141a. Second mounting through hole; 1411a. Slot; 1412a. Conical surface structure; 142. Actuating arm; 143. Reinforcing rib; 15. Elastic component; 16. Limiting component; 17. Positioning sleeve; 20. Housing; 30. Mating component; 40. Stationary contact. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening 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 intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0052] See Figure 1 The relay 100 in one embodiment of this application can be any one of a high-voltage DC relay, a high-voltage AC relay, etc., and can be flexibly selected according to actual needs.

[0053] Please continue reading. Figure 2 For example, the relay 100 includes a housing 20, a mating member 30, a stationary contact 40, and a contact mounting structure 10. The housing 20 serves as a mounting and protective carrier, enabling the loading and integration of the mating member 30, the stationary contact 40, and the contact mounting structure 10.

[0054] Specifically, the mating part 30 and the stationary contact piece 40 are respectively mounted on the housing 20. For example, the housing 20 has a cavity formed inside, and the mating part 30 and the stationary contact piece 40 may be at least partially mounted inside the cavity.

[0055] Similarly, the contact mounting structure 10 is mounted on the housing 20. Specifically, the contact mounting structure 10 is at least partially mounted inside the housing cavity. The moving contact 12 is aligned with the stationary contact 40 and can contact or separate from the stationary contact 40, and the actuating member 14 is aligned with the mating member 30 and can contact or separate from the mating member 30.

[0056] For example, when the relay 100 is in the installation and use state, the stationary contact 40 is located directly above the moving contact 12, with a first travel distance of a preset size between them. The mating part 30 is also located directly above the toggle member 14, with a second travel distance of a preset size between them.

[0057] It is easy to understand that, depending on the different structural shapes and sizes of the moving contact 12, the stationary contact 40, the toggle member 14, and the mating member 30, the first stroke distance and the second stroke distance can be equal or unequal, and can be flexibly set. No specific limitation is made here.

[0058] For example, in one embodiment, the mating member 30 is a micro switch, and the toggle member 14 contacts the micro switch to turn the micro switch on, or separates from the micro switch to turn the micro switch off.

[0059] Alternatively, in another embodiment, the mating component 30 is an auxiliary stationary spring (specifically, it can be an auxiliary stationary contact, an auxiliary stationary lead-out end, etc.). In this case, the actuating component 14 connects to or pushes the conductive component (such as an auxiliary moving contact) to cause the conductive component to contact or separate from the auxiliary stationary spring, and so on. The specific choice can be made flexibly according to actual needs.

[0060] Please continue reading. Figures 3 to 7 In one embodiment, the contact mounting structure 10 includes a push rod 11, a movable contact piece 12, a positioning member 13, and a toggle member 14.

[0061] The push rod 11 is configured to be movable. Specifically, an electromagnetic component is installed in the lower part of the cavity of the housing 20. When the electromagnetic component is energized, it generates magnetic force to drive the push rod 11 to move up and down, thereby causing the moving contact 12 and the stationary contact 40, as well as the actuating member 14 and the mating member 30 to come into contact or separate.

[0062] For example, when the moving contact 12 is in contact with the stationary contact 40 and the toggle member 14 is in contact with the mating member 30, the relay 100 is turned on and can control the external device; when the moving contact 12 is separated from the stationary contact 40 and the toggle member 14 is separated from the mating member 30, the relay 100 is turned off and the control of the external device ends.

[0063] The movable contact 12 is fitted to the push rod 11 with a clearance fit and can move relative to the push rod 11. The purpose of this arrangement is that under special working conditions, the push rod 11 may overtravel. By allowing the movable contact 12 to move relative to the push rod 11, excessive compression between the movable contact 12 and the stationary contact 40 can be avoided, which could cause deformation and damage.

[0064] The positioning element 13 is fixedly mounted on the push rod 11, and the positioning element 13 and the moving contact piece 12 are arranged at intervals along the first direction of the contact mounting structure 10; the toggle element 14 is mounted on the positioning element 13 so as to maintain a fixed relative position with the push rod 11 through the positioning element 13.

[0065] It should be noted that the first direction of the contact mounting structure 10 is also the axial direction of the push rod 11, and it is consistent with the moving direction of the push rod 11. At the same time, the first direction is also consistent with the height direction of the relay 100. This allows the push rod 11 to fully and effectively utilize the space in the height direction of the relay 100 as its moving stroke, thereby reducing the length and width dimensions of the relay 100.

[0066] Specifically, the first direction is as follows: Figure 6 and Figure 8 The direction of the middle arrow S.

[0067] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: The contact mounting structure 10 of this solution is applied to the relay 100. By mounting the moving contact 12 and the positioning member 13 onto the push rod 11 along the first direction, and then mounting the toggle member 14 onto the positioning member 13, the moving contact 12 can be aligned with the stationary contact 40 and the toggle member 14 can be aligned with the mating member 30 simultaneously. On this basis, when the relay 100 drives the push rod 11 to move, the push rod 11 can drive the moving contact 12 and the toggle member 14 to move synchronously, so that the moving contact 12 contacts the stationary contact 40 while the toggle member 14 contacts the mating member 30 simultaneously, thus realizing the need for the moving contact structure (composed of the moving contact 12 and the stationary contact 40) and the auxiliary contact structure (composed of the toggle member 14 and the mating member 30) to work synchronously.

[0068] Compared to traditional technologies, this application uses a positioning element 13 fixedly mounted on the push rod 11, and then the actuating element 14 is installed on the positioning element 13. This ensures that the relative position of the actuating element 14 and the push rod 11 is fixed, and the actuating element 14 will not loosen or shift after installation. This ensures the positional accuracy of the actuating element 14, eliminates the impact of clearance tolerance caused by the clearance installation between the moving contact piece 12 and the push rod 11, and ensures that the actuating element 14 can effectively contact the mating part 30 after moving a preset stroke. This guarantees the clearance consistency of the auxiliary contact structure and the reliability of the auxiliary contact function.

[0069] Based on the above embodiments, in one embodiment, the positioning member 13 includes a positioning plate 131. The positioning plate 131 can be any one of the following: circular, square, triangular, etc. For example, in this embodiment, the positioning plate 131 is circular, which is not only convenient to process and form, but also has a regular and smooth shape, occupies little space, and is not easy to interfere with surrounding components after being installed in the cavity of the housing 20.

[0070] Please continue reading. Figure 8 and Figure 10 The positioning plate 131 has a first mounting through hole 131a. The positioning plate 131 is sleeved on the outside of the push rod 11 through the first mounting through hole 131a, and the wall of the first mounting through hole 131a is interference-fitted with the outer peripheral wall of the push rod 11. In this embodiment, the first mounting through hole 131a is a circular hole, and the push rod 11 is a circular rod with a circular cross-section. On the one hand, this reduces the difficulty of inserting the push rod 11 into the first mounting through hole 131a. On the other hand, the push rod 11 and the wall of the first mounting through hole 131a form a complete circumferential contact surface, which helps to improve the firmness of the interference fit between the positioning plate 131 and the push rod 11.

[0071] The actuating element 14 is assembled and fixed to the positioning plate 131. This allows the actuating element 14 to move synchronously when the positioning plate 131 is driven by the push rod 11.

[0072] Then, considering the potential machining dimensional errors, gaps may easily occur between the push rod 11 and the wall of the first mounting through hole 131a, thus affecting the firmness of the installation of the push rod 11 and the positioning member 13. Furthermore, the diameter of the first mounting through hole 131a is fixed, so the positioning member 13 can only be adapted to the installation of push rods 11 of one size, which limits its applicability.

[0073] Please continue reading. Figure 8 and Figure 10 To address the aforementioned shortcomings, in another embodiment, the positioning member 13 further includes an elastic clamping structure 132. The elastic clamping structure 132 has a clamping hole 132b, which is aligned with and communicates with the first mounting through hole 131a. The elastic clamping structure 132 is disposed on the positioning plate 131 and surrounds the outer periphery of the first mounting through hole 131a. The push rod 11 passes through the clamping hole 132b, so that the elastic clamping structure 132 and the push rod 11 are engaged, thereby assembling and fixing the positioning member 13 and the push rod 11.

[0074] When the push rod 11 is inserted into the locking hole 132b, the elastic locking structure 132 can firmly hold and fix the push rod 11 by means of elastic locking force, ensuring the reliability of installation even if there are dimensional errors in the push rod 11. The elastic deformation capability of the elastic locking structure 132 has a strong tolerance for dimensional errors. In addition, due to its excellent elastic deformation capability, the diameter of the locking hole 132b can be adapted to the size variation of different push rods 11, making the positioning member 13 universal for installing push rods 11 of different specifications and sizes.

[0075] Please continue reading. Figure 10 Specifically, in an optional embodiment, the elastic locking structure 132 includes at least two elastic claws 132a, which are arranged at circumferential intervals along the first mounting through hole 131a, and the at least two elastic claws 132a cooperate to form a locking hole 132b.

[0076] Thus, at least two elastic claws 132a have the ability to retract or expand elastically along the radial direction of the first mounting through hole 131a. When the push rod 11 is inserted into the locking hole 132b, the push rod 11 pushes the elastic claws 132a to expand outward, so that the elastic claws 132a can be firmly locked and fixed with the push rod 11 under the action of the reset elastic force.

[0077] It should be noted that by reasonably setting the number and structural form of the elastic claws 132a, a better elastic clamping effect with the push rod 11 can be obtained. For example, in this application, four elastic claws 132a are specifically provided, and the four elastic claws 132a are arranged in a square structure. On the one hand, the four elastic claws 132a simultaneously engage the push rod 11, obtaining a sufficiently large engagement area to ensure that the positioning member 13 and the push rod 11 are firmly engaged; on the other hand, the clamping force of the four elastic claws 132a and the push rod 11 is evenly distributed, ensuring that the installation posture of the push rod 11 is good, and avoiding any tilting of the push rod 11 that would affect the contact reliability between the moving contact piece 12 and the stationary contact piece 40, as well as between the actuating member 14 and the mating member 30.

[0078] Of course, in other optional embodiments, the number and arrangement of the elastic claws 132a can also be other implementation schemes, which can be flexibly selected according to actual needs, and will not be elaborated here.

[0079] It should be noted that in the above embodiment using the elastic clamping structure 132, the diameter of the first mounting through hole 131a should be maximized; that is, the diameter of the first mounting through hole 131a should be larger than the maximum size of the push rod 11 that needs to be assembled, so that when the push rod 11 passes through the first mounting through hole 131a, it can be clearance-fitted with the hole wall of the first mounting through hole 131a, avoiding the hole wall contacting the push rod 11 and generating frictional resistance to the installation of the push rod 11, while also not meeting the flexible installation needs of push rods 11 of different sizes.

[0080] Please continue reading. Figure 8 Furthermore, based on the above embodiments, one end of the elastic claw 132a is connected to the hole wall of the first mounting through hole 131a or the side of the positioning plate 131 facing the movable contact piece 12, and the other end of the elastic claw 132a is bent and extended toward the movable contact piece 12, so that at least a portion of the elastic claw 132a protrudes from the side of the positioning plate 131 toward the movable contact piece 12 in the first direction.

[0081] When the push rod 11 is assembled with the positioning member 13, the end of the push rod 11 first passes through the first mounting through hole 131a away from the elastic claw 132a along the first direction. Then, as the push rod 11 is continuously pushed, the push rod 11 contacts the side of the locking hole 132b formed by the elastic claw 132a and slides along the side to apply a radial outward squeezing force to the elastic claw 132a along the locking hole 132b, thereby forcing the elastic claw 132a to produce outward elastic deformation. Finally, the push rod 11 passes through the locking hole 132b and is tightly and reliably locked with all the elastic claws 132a. The bending structure design of the elastic claw 132a has the functions of guiding and avoiding the push rod 11 into the hole 132b, making it easier and smoother for the push rod 11 to enter the hole 132b; on the other hand, the elastic claw 132a can also generate outward elastic deformation more effectively under the squeezing action of the push rod 11, thereby elastically clamping the push rod 11.

[0082] Understandably, in this application, the card hole 132b and the first mounting through hole 131a are coaxially arranged.

[0083] It should be noted that in one optional embodiment of this application, the positioning member 13 and the push rod 11 are both made of metal, and the actuating member 14 is made of plastic.

[0084] Compared to traditional technologies where the actuating element 14 is made of plastic and is directly slidably assembled with the push rod 11, causing friction between the push rod 11 and the actuating element 14, which easily generates wear debris, and this wear debris increases the risk of poor contact continuity when it comes into contact with the main contact structure and / or auxiliary contact structure, in this embodiment, both the positioning element 13 and the push rod 11 are made of metal (such as stainless steel, copper, etc.), and therefore have sufficient strength and wear resistance. Thus, when the push rod 11 and the positioning element 13 are slidably assembled, the generation of wear debris can be effectively avoided, thereby effectively solving the hidden danger of poor contact continuity.

[0085] Based on the loading and support of the positioning component 13, the strength and durability requirements of the toggle component 14 do not need to be too high. Therefore, in this embodiment, the toggle component 14 can be made of plastic, which can reduce manufacturing costs and also has a good weight reduction effect, which is beneficial to the lightweight design of the relay 100.

[0086] Please continue reading. Figures 6 to 8 Furthermore, based on any of the above embodiments, the toggle member 14 includes a toggle seat 141 and a toggle arm 142 connected together, the toggle arm 142 being used to contact or separate from the mating member 30. The toggle seat 141 and the toggle arm 142 can be integrally formed or detachably assembled. For example, in this application, the toggle seat 141 and the toggle arm 142 are integrally formed, reducing the number of parts, facilitating the processing and assembly of the relay 100, and simultaneously enabling the toggle member 14 to achieve better overall structural performance.

[0087] The actuating arm 142 is connected to the outer wall of the actuating seat 141, so that the actuating arm 142 can extend to the lower part of the mating part 30. When the push rod 11 drives the actuating part 14 to move upward, the actuating arm 142 can contact the mating part 30 to achieve conduction.

[0088] Please continue reading. Figure 8 The actuating seat 141 has a second mounting through hole 141a, which is aligned with and connected to the first mounting through hole 131a to allow the push rod 11 to pass through and be installed. The outer peripheral wall of the positioning plate 131 is engaged with the hole wall of the second mounting through hole 141a. Therefore, on the one hand, the second mounting through hole 141a on the actuating seat 141 provides the necessary installation space for the positioning plate 131, allowing the positioning plate 131 to be installed inside the actuating seat 141, making the assembly structure of the actuating member 14 and the positioning member 13 more compact; on the other hand, the direct engagement between the outer peripheral wall of the positioning plate 131 and the hole wall of the second mounting through hole 141a simplifies the installation method of the positioning plate 131 and the actuating seat 141 and reduces the installation difficulty.

[0089] Furthermore, in order to improve the connection reliability between the positioning plate 131 and the toggle seat 141, in one embodiment, the wall of the second mounting through hole 141a is recessed to form a slot 1411a extending in the circumferential direction, and the outer periphery of the positioning plate 131 is engaged in the slot 1411a.

[0090] It should be noted that in other optional embodiments, the positioning plate 131 and the toggle seat 141 can also be assembled by means of threaded connection, bonding, magnetic connection, riveting, etc. to improve the connection strength. The choice can be made flexibly according to actual needs, and will not be elaborated here.

[0091] Optionally, in one embodiment, the positioning plate 131 and the toggle seat 141 are integrally injection molded. Therefore, the positioning member 13 can be integrally injection molded with the toggle member 14 to form a single structure, which is convenient to manufacture. Combining the positioning member 13 and the toggle member 14 into a single part results in higher structural strength. After the positioning plate 131 is engaged with the push rod 11, the positional accuracy of the toggle member 14 is ensured, thereby ensuring the consistency of the gap in the auxiliary contact structure and the reliability of the auxiliary contact structure's function.

[0092] Please continue reading. Figures 6 to 8 Furthermore, the actuating component 14 also includes a reinforcing rib 143, which is connected to the connection between the actuating seat 141 and the actuating arm 142. The reinforcing rib 143 strengthens the connection between the actuating seat 141 and the actuating arm 142, which helps to improve the overall structural strength of the actuating component 14. At the same time, it prevents the actuating arm 142 from deforming or breaking after frequent contact with the mating component 30, thus affecting the normal use of the relay 100.

[0093] For example, in this application, there are two reinforcing ribs 143, which are triangular in structure and are integrally formed with the toggle seat 141 and the toggle arm 142. They are easy to process and have good overall structural integrity.

[0094] Please continue reading. Figures 5 to 9 Furthermore, in another embodiment, the contact mounting structure 10 further includes an elastic element 15 and a limiting clip 16. The limiting clip 16 is engaged with the end of the push rod 11 and abuts against the side of the movable contact piece 12 away from the actuating member 14. One end of the elastic element 15 abuts against the movable contact piece 12, and the other end of the elastic element 15 abuts against the actuating member 14 or extends into the second mounting through hole 141a and abuts against the positioning plate 131.

[0095] The positioning plate 131 or the actuating element 14 abuts against the elastic element 15 to provide installation positioning and support for the elastic element 15, ensuring the elastic support performance of the elastic element 15 for the moving contact piece 12. The limiting clip 16 is clipped onto the end of the push rod 11, which can form a lateral limiting on the moving contact piece 12, preventing the moving contact piece 12 from falling off the push rod 11 under the elastic thrust of the elastic element 15.

[0096] When the push rod 11 moves upward and causes the moving contact 12 to contact the stationary contact 40, the elastic deformation of the elastic element 15 acts as a buffer, preventing rigid impact between the moving contact 12 and the stationary contact 40 while ensuring reliable contact. Furthermore, when overtravel occurs, the elastic element 15 further compresses, allowing the moving contact 12 to elastically avoid contact with the stationary contact 40, preventing excessive rigid compression between the moving contact 12 and the stationary contact 40 and thus preventing damage.

[0097] For example, the elastic element 15 can be any one of the following: spring, sheet, elastic column, elastic sleeve, etc., and can be flexibly selected according to actual needs. In this application, the elastic element 15 is a spring, which is readily available, has excellent elastic performance, simple structure, and is convenient to install and use.

[0098] To facilitate faster and more effective insertion of the elastic element 15 into the second mounting through hole 141a for reliable contact with the positioning plate 131, in one embodiment, the hole wall of the second mounting through hole 141a is formed as a conical structure 1412a, so that the diameter of the second mounting through hole 141a decreases from the end near the moving contact piece 12 to the end away from the moving contact piece 12.

[0099] As is easily understood, the conical structure 1412a guides the insertion of the elastic element 15 into the second mounting through hole 141a and provides good tolerance for initial alignment errors between the elastic element 15 and the second mounting through hole 141a. Furthermore, when the elastic element 15 extends into the second mounting through hole 141a and abuts against the positioning plate 131, the conical structure 1412a also provides lateral restraint for the elastic element 15, preventing lateral wobbling during the expansion and contraction of the elastic element 15 and thus affecting the stability of the actuating piece.

[0100] Please continue reading. Figure 6 , Figure 8 and Figure 9 Furthermore, in another embodiment, the contact mounting structure 10 further includes a positioning sleeve 17. The positioning sleeve 17 is fitted and fixed to the outside of the push rod 11 and is arranged on the side of the positioning member 13 away from the moving contact piece 12. The positioning sleeve 17 abuts against the side of the positioning member 13 facing away from the moving contact piece 12. During the process of nesting and inserting the positioning member 13 and the push rod 11, the positioning member 13 is positioned by the cross-section of the positioning sleeve 17, ensuring the installation position accuracy of the positioning member 13 and the toggle member 14. At the same time, the positioning sleeve 17 also provides support and reinforcement for the positioning member 13, preventing the positioning member 13 from shifting on the push rod 11 when subjected to the reverse force of the stationary contact piece 40, the mating part 30, etc., which would affect the reliability of the subsequent conduction of the relay 100.

[0101] For example, the positioning sleeve 17 can be assembled and fixed to the push rod 11 by means of interference fit, bonding, snap-fit, screw connection, etc., and the specific method can be flexibly selected according to actual needs.

[0102] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A contact mounting structure, characterized in that, include: The push rod is configured to be movable. A movable contact piece is fitted to the push rod with a clearance fit and is movable relative to the push rod; A positioning element is fixedly mounted on the push rod, and the positioning element and the movable contact piece are arranged at intervals along a first direction of the contact mounting structure. as well as A toggle element is mounted on the positioning element to maintain a fixed relative position with the push rod via the positioning element.

2. The contact mounting structure according to claim 1, characterized in that, The positioning component includes a positioning plate, which has a first mounting through hole. The positioning plate is sleeved on the outside of the push rod through the first mounting through hole, and the wall of the first mounting through hole is interference-fitted with the outer peripheral wall of the push rod. The actuating component is assembled and fixed to the positioning plate.

3. The contact mounting structure according to claim 2, characterized in that, The positioning component further includes an elastic locking structure, which has a locking hole that is aligned with and communicates with the first mounting through hole. The elastic locking structure is disposed on the positioning plate and surrounds the outer periphery of the first mounting through hole. The push rod passes through the locking hole, so that the elastic locking structure engages with the push rod, thereby assembling and fixing the positioning component with the push rod.

4. The contact mounting structure according to claim 3, characterized in that, The elastic locking structure includes at least two elastic claws, which are arranged at intervals along the circumference of the first mounting through hole, and the at least two elastic claws cooperate to form the locking hole.

5. The contact mounting structure according to claim 4, characterized in that, One end of the elastic claw is connected to the wall of the first mounting through hole or the side of the positioning plate facing the movable contact piece, and the other end of the elastic claw bends and extends toward the movable contact piece, such that at least a portion of the elastic claw protrudes from the side of the positioning plate facing the movable contact piece in the first direction.

6. The contact mounting structure according to claim 2, characterized in that, The actuating element includes an actuating seat and an actuating arm connected together, the actuating arm being used to contact or separate from the mating element; The actuating seat has a second mounting through hole, which is aligned with and connected to the first mounting through hole to allow the push rod to pass through and be installed; the outer peripheral wall of the positioning plate is engaged with the hole wall of the second mounting through hole.

7. The contact mounting structure according to claim 6, characterized in that, The actuating seat and the actuating arm are integrally formed; And / or, the wall of the second mounting through hole is recessed to form a slot extending circumferentially, and the outer peripheral portion of the positioning plate is engaged in the slot; And / or, the positioning plate and the toggle seat are integrally injection molded.

8. The contact mounting structure according to claim 6, characterized in that, The contact mounting structure further includes an elastic element and a limiting clip. The limiting clip is snapped onto the end of the push rod and abuts against the side of the movable contact away from the actuating element. One end of the elastic element abuts against the movable contact, and the other end of the elastic element abuts against the actuating element or extends into the second mounting through hole and abuts against the positioning plate.

9. The contact mounting structure according to claim 6, characterized in that, The actuating component also includes a reinforcing rib, which is connected to the connection between the actuating seat and the actuating arm.

10. The contact mounting structure according to claim 6, characterized in that, The wall of the second mounting through hole is formed into a conical structure so that the diameter of the second mounting through hole decreases from the end near the moving contact to the end away from the moving contact.

11. The contact mounting structure according to claim 2, characterized in that, The contact mounting structure further includes a positioning sleeve, which is fitted and fixed to the outside of the push rod and arranged on the side of the positioning member away from the moving contact piece. The positioning sleeve abuts against the side of the positioning member opposite to the moving contact piece.

12. The contact mounting structure according to claim 1, characterized in that, Both the positioning component and the push rod are made of metal, while the actuating component is made of plastic. And / or, the first direction of the contact mounting structure corresponds to the axial direction of the push rod and is consistent with the moving direction of the push rod, and the first direction of the contact mounting structure is consistent with the height direction of the relay.

13. A relay, characterized in that, include: case; A mating component and a stationary contact piece, wherein the mating component and the stationary contact piece are respectively mounted on the housing; as well as The contact mounting structure as described in any one of claims 1 to 12, wherein the contact mounting structure is mounted on the housing, the moving contact is aligned with the stationary contact and can contact or separate from the stationary contact, and the actuating member is aligned with the mating member and can contact or separate from the mating member.

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