Time delay mechanism and contactor
By designing a delay mechanism and utilizing the cooperation of rotating and elastic components, the problems of inaccurate core alignment and unreliable release of the contactor under low power consumption and high load conditions are solved, thus achieving stability and energy saving in the engagement and release process.
Patent Information
- Application Number
- CN202520313270.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing contactors, when operating at low power consumption and under heavy load, suffer from inaccurate core alignment, unstable engagement, and a tendency for the core to re-engage during release, leading to unreliability.
Design a delay mechanism that, through the cooperation of a rotating component and an elastic component, delays the cutting off or conduction of the current in the coil, ensuring the stability of the iron core's attraction and release process. This includes the coordinated operation of the housing, moving iron core, stationary iron core, rotating component, elastic component, and limit switch.
This improves the reliability of the contactor core during the engagement and disengagement process, avoids repeated engagement of the core, extends equipment lifespan, and saves energy.
Smart Images
Figure CN223941745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment technology, and more specifically, to a time delay mechanism and a contactor. Background Technology
[0002] Currently, conventional contactors typically consist of a stationary iron core, a moving iron core, a pull-in coil, and a holding coil. The stationary iron core is attracted to the moving iron core by energizing the pull-in and holding coils. During the engagement process, the pull-in coil needs to be disconnected midway, allowing the inertia of the moving iron core and the action of the holding coil to ensure complete engagement, thereby reducing holding power consumption.
[0003] However, this often leads to problems such as inaccurate core alignment and unstable engagement for contactors with low pull-in power consumption and high load. Furthermore, even with guaranteed engagement, if the pull-in coil is cut off too late, it may engage prematurely during the release phase. In this case, insufficient air gap opening in the core can easily trigger another pull-in, resulting in unreliable release. Utility Model Content
[0004] The purpose of this utility model is to provide a delay mechanism and a contactor that can ensure that the current of the coil is cut off after the iron core is attracted, thus ensuring the reliability of the attraction. It can also delay the conduction of the current of the coil during the release of the iron core, so as to solve the problem of the iron core attracting again after release, thereby improving the stability of the contactor's iron core during the attraction and release process.
[0005] The embodiments of this utility model are implemented as follows:
[0006] In a first aspect, this utility model provides a time delay mechanism, comprising:
[0007] case;
[0008] A moving iron core, which is movably disposed within the housing;
[0009] A stationary iron core, wherein the stationary iron core is disposed in the housing;
[0010] A rotating component, movably disposed on the housing, the rotating component including a first abutting portion and a second abutting portion;
[0011] An elastic element is disposed in the housing and acts on the rotating element;
[0012] A limit switch, wherein the limit switch is disposed in the housing;
[0013] During the process of the moving iron core moving closer to the stationary iron core, the moving iron core moves toward the first abutting part until it contacts it, thereby driving the rotating member to move along the first direction and storing energy in the elastic member; when the moving iron core and the stationary iron core are attracted together, the elastic member releases energy and drives the rotating member to continue moving along the first direction, thereby driving the first abutting part to touch the limit switch.
[0014] During the movement of the moving iron core away from the stationary iron core, the moving iron core moves toward the second abutment until it contacts the rotating member to move in the second direction, so that the first abutment disengages from the limit switch. The first direction and the second direction are opposite directions.
[0015] In an optional embodiment, the rotating member includes a connecting portion and a rotating portion, the first abutting portion, the connecting portion and the second abutting portion are connected, the rotating portion is connected to the connecting portion, and the rotating portion is rotatably engaged with the housing.
[0016] In an optional embodiment, the housing is provided with a base and a rotating shaft, the rotating shaft is disposed on the base, and the rotating part is rotatably engaged with the rotating shaft.
[0017] In an optional embodiment, the rotating shaft is detachably disposed in the rotating shaft hole of the base; or, the rotating shaft is integrally formed with the base.
[0018] In an optional embodiment, the rotating member further includes a limiting part connected to the connecting part. The limiting part is provided with a slot, the base is provided with a mounting cavity, the elastic member is disposed in the mounting cavity, and the end of the elastic member is disposed in the slot.
[0019] In an optional embodiment, the connecting part includes a first segment and a second segment, the first abutting part, the first segment, the second segment and the second abutting part are connected, the second segment and the second abutting part are set at an obtuse angle, the limiting part is connected to the second segment, and the rotating part is connected to the first segment.
[0020] In an optional embodiment, the moving iron core is provided with a pressure plate, which moves synchronously with the moving iron core to abut against the first abutting part to drive the rotating member to move in the first direction, or to abut against the second abutting part to drive the rotating member to move in the second direction.
[0021] In an optional embodiment, the delay mechanism further includes a holding coil and a pull-in coil, both of which are disposed on the stationary iron core. The limit switch is a normally closed switch, and the pull-in coil is connected to the limit switch. The current in the pull-in coil is cut off when the rotating part touches the limit switch.
[0022] In an optional implementation, the number of limit switches is one or more, and if the number of limit switches is multiple, the multiple limit switches are connected in parallel.
[0023] Secondly, the present invention provides a contactor including a delay mechanism as described in any of the foregoing embodiments.
[0024] The beneficial effects of the delay mechanism and contactor provided in this utility model embodiment include: during the process of the moving iron core moving toward the stationary iron core, the moving iron core simultaneously moves toward the first abutting part of the rotating member until the moving iron core contacts the first abutting part and thereby drives the rotating member to move along the first direction. During this process, the rotating member simultaneously drives the elastic member to move and stores energy in the elastic member. When the moving iron core and the stationary iron core are about to be attracted together or have completely contacted and are in an attracted state, the rotating member is no longer subject to the force of the moving iron core. At this time, the elastic member has also changed from the energy storage state to the energy release state. Therefore, the rotating member will continue to move along the first direction under the action of the elastic restoring force of the elastic member to touch the limit switch until the coil circuit connected to the limit switch is disconnected, thereby realizing the delayed cut-off of the coil after the iron core is attracted, thereby improving the reliability of the iron core attraction.
[0025] Similarly, during the process of the moving iron core moving away from the stationary iron core, that is, the moving iron core separates from the first contact part of the rotating component and moves towards the second contact part of the rotating component; and since the rotating component still maintains the state of touching the limit switch under the action of the elastic force of the elastic component, during the process of the moving iron core separating from the first contact part and moving towards the second contact part, the rotating component always maintains the contact with the limit switch under the action of the elastic component until the moving iron core contacts the second contact part and drives the rotating component to move in the second direction, and simultaneously drives the first contact part to separate from the limit switch, so that the coil circuit connected to the limit switch is turned on at this time, thereby avoiding the coil from engaging too early, ensuring that the gap between the moving iron core and the stationary iron core is large enough, thus avoiding repeated attraction between the moving iron core and the stationary iron core, ensuring smooth release of the moving iron core, and thus improving the reliability of the trigger. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 A schematic diagram of the delay mechanism structure provided in this embodiment of the utility model;
[0028] Figure 2 One of the schematic diagrams of the delay mechanism provided in the embodiment of this utility model;
[0029] Figure 3 This is the second schematic diagram of the delay mechanism provided in the embodiment of the present utility model;
[0030] Figure 4 A schematic diagram of the initial state structure of the delay mechanism provided in this embodiment of the utility model;
[0031] Figure 5 A schematic diagram of the engagement process of the delay mechanism provided in this embodiment of the utility model;
[0032] Figure 6 A schematic diagram of the delayed mechanism in the engagement state provided in an embodiment of this utility model;
[0033] Figure 7 A schematic diagram of the release process of the delay mechanism provided in an embodiment of this utility model;
[0034] Figure 8 A schematic diagram of the release state structure of the delay mechanism provided in an embodiment of this utility model.
[0035] Icons: 10-Delay mechanism; 100-Housing; 110-Base; 111-Mounting cavity; 120-Rotating shaft; 200-Moving iron core; 210-Pressure plate; 300-Stationary iron core; 400-Rotating component; 410-First abutment part; 420-Second abutment part; 430-Connecting part; 431-First section; 432-Second section; 440-Rotating part; 450-Limiting part; 451-Slot; 500-Elastic component; 600-Limit switch. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0042] Currently, conventional contactors typically consist of a stationary iron core, a moving iron core, a pull-in coil, and a holding coil. The stationary iron core is attracted to the moving iron core by energizing the pull-in and holding coils. During the engagement process, the pull-in coil needs to be disconnected midway, allowing the inertia of the moving iron core and the action of the holding coil to ensure complete engagement, thereby reducing holding power consumption.
[0043] However, this often leads to problems such as inaccurate core alignment and unstable engagement for contactors with low pull-in power consumption and high load. Furthermore, even with guaranteed engagement, if the pull-in coil is cut off too late, it may engage prematurely during the release phase. In this case, insufficient air gap opening in the core can easily trigger another pull-in, resulting in unreliable release.
[0044] Based on the problems existing in the current technology, please refer to Figures 1 to 3 This utility model provides a delay mechanism 10, which is applied to electrical equipment, especially contactors. It can not only ensure that the current of the coil is cut off after the iron core is attracted, thus ensuring the reliability of the attraction, but also delay the conduction of the current of the coil during the release of the iron core, so as to solve the problem of the iron core attracting again after release, thereby improving the stability of the contactor's iron core during the attraction and release process.
[0045] In detail, the delay mechanism 10 includes a housing 100 and a moving iron core 200, a stationary iron core 300, a rotating member 400, an elastic member 500, and a limit switch 600 disposed in the housing 100.
[0046] The moving iron core 200 and the rotating member 400 are both movably disposed in the housing 100. The rotating member 400 includes a first abutting part 410 and a second abutting part 420. The elastic member 500 is disposed in the housing 100 and acts on the rotating member 400.
[0047] First, it should be noted that the delay mechanism 10 also includes a holding coil (not shown) and a pull-in coil (not shown). Both the holding coil and the pull-in coil are located on the stationary iron core 300. The limit switch 600 is a normally closed switch. The pull-in coil is connected to the limit switch 600. The current of the pull-in coil is cut off when the rotating part 400 touches the limit switch 600.
[0048] When the energizing coil is energized, it generates a magnetic field. This magnetic field attracts the moving iron core 200 to the stationary iron core 300 to achieve the energizing action. During the energizing process, the current to the energizing coil is cut off. The moving iron core 200 is energized by the impulse of the moving iron core 200 and the action of the holding coil to keep the moving iron core 200 in the energized state, thereby reducing the holding power consumption. The function of the holding coil is to continue to be energized after the energizing action is completed, to maintain the magnetic field with a small power, and to keep the moving iron core 200 in the energized state, thereby saving energy and reducing the heat generation of the coil. Therefore, through this design, the device can effectively complete the switching action and maintain the state without needing continuous high power, thus extending the service life of the device and improving energy efficiency.
[0049] Therefore, as Figures 4 to 6 As shown, during the attraction process, that is, as the moving iron core 200 moves closer to the stationary iron core 300, the moving iron core 200 moves toward the first abutment part 410 until it makes contact, thereby driving the rotating member 400 to move along the first direction and causing the elastic member 500 to store energy; when the moving iron core 200 and the stationary iron core 300 are attracted together, the elastic member 500 releases energy and drives the rotating member 400 to continue moving along the first direction, thereby driving the first abutment part 410 to touch the limit switch 600.
[0050] First, it should be noted that the attraction between the moving iron core 200 and the stationary iron core 300 in this embodiment can be a state where the moving iron core 200 and the stationary iron core 300 are about to be attracted together, or a state where the moving iron core 200 and the stationary iron core 300 are already in complete contact and attracted together.
[0051] In other words, during the process of the moving iron core 200 moving towards the stationary iron core 300, the moving iron core 200 simultaneously moves towards the first abutment portion 410 of the rotating member 400 until the moving iron core 200 contacts the first abutment portion 410 and thereby drives the rotating member 400 to move along the first direction. During this process, the rotating member 400 simultaneously drives the elastic member 500 to move and stores energy. When the moving iron core 200 and the stationary iron core 300 are about to be attracted together or have already made full contact and are in an attracted state, the rotating member 400 is no longer subject to the force of the moving iron core 200. At this time, the elastic member 500 has also changed from the energy storage state to the energy release state. Therefore, the rotating member 400 will continue to move along the first direction under the action of the elastic restoring force of the elastic member 500 to touch the limit switch 600 until the coil circuit connected to the limit switch 600 is disconnected, thereby achieving a delayed cut-off of the coil after the iron core is attracted, thereby improving the reliability of the iron core attraction.
[0052] like Figures 6 to 8As shown, during the release process, that is, as the moving iron core 200 moves away from the stationary iron core 300, the moving iron core 200 moves toward the second abutment part 420 until it contacts, thereby driving the rotating part 400 to move in the second direction, so that the first abutment part 410 disengages from the limit switch 600.
[0053] Similarly, during the process of the moving iron core 200 moving away from the stationary iron core 300, that is, the moving iron core 200 separates from the first abutting part 410 of the rotating member 400 and moves towards the second abutting part 420 of the rotating member 400; and since the rotating member 400 remains in the state of touching the limit switch 600 under the elastic force of the elastic member 500, during the process of the moving iron core 200 separating from the first abutting part 410 and moving towards the second abutting part 420, the rotating member 400 always maintains the contact limit under the action of the elastic member 500. Switch 600 until the moving iron core 200 contacts the second abutment part 420 and drives the rotating part 400 to move in the second direction, and simultaneously drives the first abutment part 410 to disengage from the limit switch 600. Only at this time is the pull-in coil circuit connected to the limit switch 600 turned on, thereby avoiding premature engagement of the pull-in coil and ensuring that the gap between the moving iron core 200 and the stationary iron core 300 is large enough. This prevents the moving iron core 200 from repeatedly engaging with the stationary iron core 300, ensuring that the moving iron core 200 is released smoothly, and thus improving the reliability of the trigger.
[0054] It should be noted that in this embodiment, the first direction and the second direction are opposite directions. Taking the figure as an example, the first direction is clockwise and the second direction is counterclockwise.
[0055] It is also worth mentioning that in this embodiment, the moving iron core 200 is rotatably disposed on the housing 100 relative to the stationary iron core 300; of course, in other embodiments of this utility model, the moving iron core 200 may also be linearly movable on the housing 100 relative to the stationary iron core 300, which can be adjusted according to actual product requirements, and is not specifically limited here.
[0056] Furthermore, the rotating member 400 includes a connecting part 430 and a rotating part 440. The first abutting part 410, the connecting part 430 and the second abutting part 420 are connected. The rotating part 440 is connected to the connecting part 430 and rotates with the housing 100.
[0057] In this embodiment, the first abutting part 410 and the second abutting part 420 are respectively connected to the two ends of the connecting part 430. Therefore, during the attraction process, the abutting part of the moving iron core 200 will move between the first abutting part 410 and the second abutting part 420, so that after release, the abutting part of the moving iron core 200 will have a free stroke, thereby achieving the effect of delaying the cut-off of the closed coil.
[0058] In detail, the housing 100 is provided with a base 110 and a rotating shaft 120. The rotating shaft 120 is disposed on the base 110, and the rotating part 440 is rotatably engaged with the rotating shaft 120.
[0059] In this embodiment, the rotating shaft 120 is detachably disposed in the rotating shaft 120 hole of the base 110; of course, in other embodiments of this utility model, the rotating shaft 120 may also be integrally formed with the base 110.
[0060] Furthermore, the rotating member 400 also includes a limiting part 450, which is connected to the connecting part 430. The limiting part 450 is provided with a slot 451, the base 110 is provided with a mounting cavity 111, the elastic member 500 is provided in the mounting cavity 111, and the end of the elastic member 500 is provided in the slot 451.
[0061] It should be noted that when the end of the elastic element 500 and the slot 451 are located on the straight line (as shown by the dotted line in the figure) in the vertical direction of the rotating shaft 120, the elastic element 500 is located at the "dead point" position. Taking the figure as an example, the elastic element 500 on the left side of the "dead point" position can store energy under the drive of the rotating element 400, and the elastic element 500 on the right side of the "dead point" position can release energy to continue to drive the rotating element 400 to rotate in the first direction.
[0062] Optionally, the elastic element 500 is a double torsion spring.
[0063] In detail, the connecting part 430 includes a first segment 431 and a second segment 432. The first abutting part 410, the first segment 431, the second segment 432 and the second abutting part 420 are connected. The second segment 432 and the second abutting part 420 are set at an obtuse angle. The first abutting part 410 and the second abutting part 420 are set in parallel. The first segment 431 and the second segment 432 are set at an included angle. The limiting part 450 is connected to the second segment 432. The rotating part 440 abuts against the first segment 431.
[0064] In this embodiment, the first segment 431 and the second segment 432 are set at an angle, and the first abutment portion 410 and the second abutment portion 420 are set in parallel. When the rotating member 400 triggers the limit switch 600, the first abutment portion 410 and the second abutment portion 420 are in a horizontal state, and the first segment 431 is in a vertical state. It is precisely because the first segment 431 and the second segment 432 are set at an angle, and the second segment 432 is inclined towards the second abutment portion 420 in the vertical upward direction, that the moving iron core 200 first abuts against the second segment 432 during the process of moving away from the stationary iron core 300, slides along the second segment 432, and then abuts against the second abutment portion 420, thereby driving the rotating member 400 to rotate in the second direction.
[0065] Furthermore, the moving iron core 200 is provided with a pressure plate 210, which moves synchronously with the moving iron core 200. The pressure plate 210 is used to abut against the first abutment part 410 to drive the rotating member 400 to move in the first direction, or to abut against the second abutment part 420 to drive the rotating member 400 to move in the second direction.
[0066] In this embodiment, the pressure plate 210 can move synchronously toward or away from the stationary iron core 300 under the drive of the moving iron core 200, and the moving iron core 200 abuts against the first abutting part 410 or the second abutting part 420 through the pressure plate 210, thereby driving the rotating member 400 to move along the first direction or the second direction.
[0067] Furthermore, the number of limit switches 600 can be one or more, and when there are multiple limit switches 600, the multiple limit switches 600 are connected in parallel.
[0068] In summary, this utility model provides a delay mechanism 10. During the process of the moving iron core 200 moving towards the stationary iron core 300, the moving iron core 200 simultaneously moves towards the first abutment portion 410 of the rotating member 400 until the moving iron core 200 contacts the first abutment portion 410 and thereby drives the rotating member 400 to move along the first direction. During this process, the rotating member 400 simultaneously drives the elastic member 500 to move and store energy. After the moving iron core 200 and the stationary iron core 300 are fully in contact and in an attracted state, the rotating member 400 is no longer subject to the force of the moving iron core 200. At this time, the elastic member 500 has also changed from the energy storage state to the energy release state. Therefore, the rotating member 400 will continue to move along the first direction under the action of the elastic restoring force of the elastic member 500 to touch the limit switch 600 until the coil circuit connected to the limit switch 600 is disconnected, thereby achieving a delayed cut-off of the coil after the iron core is attracted, thereby improving the reliability of the iron core attraction.
[0069] Similarly, during the process of the moving iron core 200 moving away from the stationary iron core 300, that is, the moving iron core 200 separates from the first abutting part 410 of the rotating member 400 and moves towards the second abutting part 420 of the rotating member 400; and since the rotating member 400 remains in the state of touching the limit switch 600 under the elastic force of the elastic member 500, during the process of the moving iron core 200 separating from the first abutting part 410 and moving towards the second abutting part 420, the rotating member 400 always maintains the contact limit under the action of the elastic member 500. Switch 600 until the moving iron core 200 contacts the second abutment part 420 and drives the rotating part 400 to move in the second direction, and simultaneously drives the first abutment part 410 to disengage from the limit switch 600. Only at this time is the pull-in coil circuit connected to the limit switch 600 turned on, thereby avoiding premature engagement of the pull-in coil and ensuring that the gap between the moving iron core 200 and the stationary iron core 300 is large enough. This prevents the moving iron core 200 from repeatedly engaging with the stationary iron core 300, ensuring that the moving iron core 200 is released smoothly, and thus improving the reliability of the trigger.
[0070] Furthermore, this embodiment of the invention also provides a contactor that includes the delay mechanism 10 as described in the above embodiments.
[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A time delay mechanism, characterized in that, include: Casing (100); A movable iron core (200) is movably disposed in the housing (100); A stationary iron core (300) is disposed in the housing (100); A rotating member (400) is movably disposed in the housing (100), and the rotating member (400) includes a first abutting part (410) and a second abutting part (420); An elastic element (500) is disposed in the housing (100) and acts on the rotating element (400); Limit switch (600), the limit switch (600) is disposed in the housing (100); As the moving iron core (200) moves closer to the stationary iron core (300), the moving iron core (200) moves toward the first abutment (410) until it contacts it, thereby driving the rotating member (400) to move along the first direction and causing the elastic member (500) to store energy; when the moving iron core (200) and the stationary iron core (300) are attracted together, the elastic member (500) releases energy and drives the rotating member (400) to continue moving along the first direction, thereby driving the first abutment (410) to touch the limit switch (600); During the movement of the moving iron core (200) away from the stationary iron core (300), the moving iron core (200) moves toward the second abutment (420) until it contacts the rotating member (400) to move in the second direction so that the first abutment (410) disengages from the limit switch (600). The first direction and the second direction are opposite directions.
2. The delay mechanism according to claim 1, characterized in that, The rotating component (400) includes a connecting part (430) and a rotating part (440). The first abutting part (410), the connecting part (430) and the second abutting part (420) are connected. The rotating part (440) is connected to the connecting part (430) and the rotating part (440) is rotatably engaged with the housing (100).
3. The delay mechanism according to claim 2, characterized in that, The housing (100) is provided with a base (110) and a rotating shaft (120), the rotating shaft (120) is disposed on the base (110), and the rotating part (440) is rotatably engaged with the rotating shaft (120).
4. The delay mechanism according to claim 3, characterized in that, The rotating shaft (120) is detachably disposed in the rotating shaft (120) hole of the base (110); or, the rotating shaft (120) is integrally formed with the base (110).
5. The delay mechanism according to claim 3, characterized in that, The rotating component (400) further includes a limiting part (450), which is connected to the connecting part (430). The limiting part (450) is provided with a slot (451). The base (110) is provided with a mounting cavity (111). The elastic member (500) is disposed in the mounting cavity (111), and the end of the elastic member (500) is disposed in the slot (451).
6. The delay mechanism according to claim 5, characterized in that, The connecting part (430) includes a first segment (431) and a second segment (432). The first abutting part (410), the first segment (431), the second segment (432) and the second abutting part (420) are connected. The second segment (432) and the second abutting part (420) are set at an obtuse angle. The limiting part (450) is connected to the second segment (432). The rotating part (440) is connected to the first segment (431).
7. The delay mechanism according to claim 1, characterized in that, The moving iron core (200) is provided with a pressure plate (210), which moves synchronously with the moving iron core (200) to abut against the first abutting part (410) to drive the rotating member (400) to move in the first direction, or to abut against the second abutting part (420) to drive the rotating member (400) to move in the second direction.
8. The delay mechanism according to claim 1, characterized in that, The delay mechanism also includes a holding coil and a pull-in coil, both of which are disposed on the stationary iron core (300). The limit switch (600) is a normally closed switch. The pull-in coil is connected to the limit switch (600). The current of the pull-in coil is cut off when the rotating part (400) touches the limit switch (600).
9. The delay mechanism according to claim 1, characterized in that, The number of limit switches (600) is one or more. When the number of limit switches (600) is multiple, the multiple limit switches (600) are arranged in parallel.
10. A contactor, characterized in that, Includes the delay mechanism as described in any one of claims 1-9.