Top-hung auxiliary contact connecting structure and contactor
By designing a top-mounted auxiliary contact connection structure in the contactor, and using a limiting part and a linkage mechanism to ensure consistent movement of the top-mounted auxiliary contact, the problem of incompatibility of top-mounted auxiliary contacts in different contactor models is solved, thereby improving production efficiency and versatility.
Patent Information
- Application Number
- CN202520010928.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Different models and types of contactors have different travel distances for their moving contacts when switching between connected and disconnected states, which means that the top-mounted auxiliary contacts need to be customized and cannot use a uniform top-mounted auxiliary contact, thus affecting production efficiency.
A top-mounted auxiliary contact connection structure is designed, including a housing, an indicator, and a linkage mechanism. By setting a first limiting part and a second limiting part on the groove wall of the mounting groove, the linkage mechanism drives the indicator to slide between the limiting parts, ensuring that the movement stroke of the top-mounted auxiliary contact is consistent, and enabling contactors of different specifications to share the same type of top-mounted auxiliary contact.
This improves the versatility of top-mounted auxiliary contacts, reduces the number of specifications, lowers manufacturing costs, and enables contactors of different specifications to use the same type of top-mounted auxiliary contacts.
Smart Images
Figure CN223680014U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of switches, in particular to a top-hanging auxiliary contact connecting structure and a contactor. BACKGROUND
[0002] The contactor is a widely used switch device, which mainly controls the connection and disconnection of the circuit in which the contactor is located by controlling the attraction and separation of the moving contact and the static contact.
[0003] When the moving contact moves towards the static contact until the moving contact and the static contact are attracted, the circuit in which the contactor is located is connected. When the moving contact moves away from the static contact until the moving contact and the static contact are separated, the circuit in which the contactor is located is disconnected.
[0004] In the existing contactor products, the moving distance of the moving contact is different when different types of contactors of different models are switched between the connected state and the disconnected state. The top-hanging auxiliary contact of each contactor needs to be customized according to the moving distance of the moving contact, and a unified and universal top-hanging auxiliary contact cannot be used. In this way, the specifications of the top-hanging auxiliary contact are increased, and the production efficiency is affected. CONTENT OF THE INVENTION
[0005] The application provides a top-hanging auxiliary contact connecting structure and a contactor, which are used to improve the universality of the top-hanging auxiliary contact.
[0006] In order to achieve the above-mentioned purpose, in a first aspect, the application provides a top-hanging auxiliary contact connecting structure, which comprises a shell, an indicating piece and a linkage mechanism. One side of the shell is provided with a mounting groove. In the depth direction of the mounting groove, a first limiting portion and a second limiting portion are sequentially arranged on the groove wall of the mounting groove. The indicating piece is slidably arranged in the depth direction in the mounting groove. One end of the indicating piece extends out of the mounting groove and is used to connect the top-hanging auxiliary contact. The linkage mechanism is slidably arranged in the depth direction in the shell, and the indicating piece is movably arranged in the linkage mechanism. The indicating piece has a driving position and a sliding position relative to the linkage mechanism. In the driving position, the indicating piece is limited in the linkage mechanism, and the linkage mechanism drives the indicating piece to slide between the first limiting portion and the second limiting portion. In the sliding position, the indicating piece is limited in the first limiting portion or the second limiting portion, and the linkage mechanism slides relative to the indicating piece.
[0007] When the technical scheme is adopted, the first limiting part and the second limiting part are sequentially arranged on the groove wall of the mounting groove in the depth direction of the mounting groove, and the indicating member is slidably arranged in the mounting groove in the depth direction. In the driving position, the linkage mechanism drives the indicating member to slide between the first limiting part and the second limiting part. In the sliding position, the indicating member is limited in the first limiting part or the second limiting part, and at this time, the linkage mechanism slides relative to the indicating member. When the indicating member is limited in the first limiting part or the second limiting part, the linkage mechanism can still slide relative to the indicating member in the depth direction, that is, the movement stroke of the linkage mechanism is not the same as the movement stroke of the indicating member, and the movement stroke of the linkage mechanism is greater than the movement stroke of the indicating member. The linkage mechanism is arranged on the contact support in a following manner, and the movable contact is fixedly arranged on the contact support, so that the movement stroke of the linkage mechanism is equal to the movement stroke of the movable contact.
[0008] Therefore, when the models and types of the contactors are different, the movement strokes of the movable contacts are different, the movement strokes of the linkage mechanisms are also different, and the movement strokes of the indicating members are consistent. Since the top-hanging auxiliary contact is arranged on the indicating member, the movement strokes of the top-hanging auxiliary contacts are consistent. The movement strokes of the top-hanging auxiliary contacts are not affected by the models and types of the contactors. Therefore, the same type of top-hanging auxiliary contact can be used in contactors of different specifications, so that the same type of top-hanging auxiliary contact can be used in contactors of different specifications, the universality of the top-hanging auxiliary contact is improved, the specifications of the top-hanging auxiliary contact are reduced, the manufacturing cost is reduced, and the top-hanging auxiliary contact has universality and uniformity.
[0009] In a possible implementation, one of the protruding part and the recessed part is arranged on the groove wall of the mounting groove, and the other of the protruding part and the recessed part is arranged on the outer wall of the indicating member.
[0010] When the technical scheme is adopted, the protruding part and the recessed part are matched, the protruding part can play a guiding role, guide the indicating member to slide relative to the shell in a preset direction, and improve the stability of the indicating member relative to the shell when sliding.
[0011] In a possible implementation, the linkage mechanism includes a linkage member, and the indicating member is movably arranged on the linkage member. The linkage member has a connecting hole extending in the depth direction of the mounting groove. The indicating member has a connecting shaft movably connected with the linkage member, and the connecting shaft is movably arranged in the connecting hole. The hole wall of the connecting hole is provided with a third limiting part. When the indicating member is in the driving position, the indicating member is limited in the third limiting part.
[0012] In a possible implementation, along the depth direction, the connecting hole has a sliding segment, an inner convex arc segment and an outer convex arc segment connected with each other. At the position of the inner convex arc segment, the minimum distance between the hole walls of the connecting hole is less than the diameter of the connecting shaft, so as to form the third limiting part by the inner convex arc segment.
[0013] In a possible implementation, the linkage mechanism further comprises a telescopic assembly arranged on the linkage. The telescopic assembly has a telescopic end, the telescopic end has an extended position and a retracted position relative to the connecting hole, when the telescopic end is in the extended position, the telescopic end is located in the connecting hole, and the telescopic end can block the limit indicator in the driving position. When the telescopic end is in the retracted position, the telescopic end unblocks the limit indicator, allowing the indicator to switch between the driving position and the sliding position.
[0014] In a possible implementation, the linkage has a mounting hole, and the mounting hole is in communication with the connecting hole. The telescopic assembly comprises a telescopic shaft and an elastic member. The telescopic shaft is movably arranged in the mounting hole, and the telescopic shaft has a telescopic end. The elastic member is arranged in the mounting hole, and the two ends of the elastic member are elastically applied to the telescopic shaft and the linkage respectively, for applying a force to the telescopic end away from the mounting hole, so that the telescopic end is located in the connecting hole.
[0015] When the above technical solution is adopted, the third limiting portion can be formed by an inner convex arc segment or by the telescopic end of the telescopic shaft, which enriches the forming mode of the third limiting portion and facilitates selection and setting according to actual conditions.
[0016] In a possible implementation, the linkage comprises a connecting portion and two oppositely arranged connecting plates, and the connecting portion is used to be connected with the contact support. The two oppositely arranged connecting plates are arranged on both sides of the connecting portion, and the two connecting plates are both provided with connecting holes. The indicator comprises two connecting shafts matched with the two connecting holes respectively.
[0017] When the above technical solution is adopted, the two connecting shafts are matched with the two connecting holes, which can improve the connection stability between the linkage and the indicator.
[0018] In a possible implementation, the connecting portion is provided with a hollow hole.
[0019] When the above technical solution is adopted, the weight of the linkage can be reduced, and the material use can be saved. At the same time, the load of the linkage acting on the contact support can be reduced.
[0020] In a possible implementation, the number of the first limiting portions is multiple, and the multiple first limiting portions are arranged along the circumference of the mounting groove.
[0021] When the above technical solution is adopted, the indicator can be in limiting contact with the multiple first limiting portions, which improves the firmness of the indicator and avoids the inclination of the indicator when the indicator is limited by the first limiting portions.
[0022] In a possible implementation, the number of the second limiting portions is multiple, and the multiple second limiting portions are arranged along the circumference of the mounting groove.
[0023] When the above technical solution is adopted, the indicator can be in contact with multiple second limiting parts, which can improve the firmness of the indicator and prevent the indicator from tilting when it is limited by the second limiting parts.
[0024] Secondly, this application provides a contactor, including a contact support and a top-mounted auxiliary contact connection structure as described in any possible implementation of the first aspect, wherein the contact support is slidably disposed within the housing of the top-mounted auxiliary contact connection structure. A linkage mechanism of the top-mounted auxiliary contact connection structure is movably disposed on the contact support.
[0025] The beneficial effects of the contactor described in the second aspect can be referred to in the beneficial effects of the top-mounted auxiliary contact connection structure described in the first aspect, and will not be repeated here. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the contactor provided in an embodiment of this application.
[0027] Figure 2 This is a schematic diagram showing the positional relationship between the top-mounted auxiliary contact connection structure and the contact support provided in an embodiment of this application.
[0028] Figure 3 A schematic diagram of the cover provided in the embodiments of this application. Figure 1 .
[0029] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.
[0030] Figure 5 A schematic diagram of the cover provided in the embodiments of this application. Figure 2 .
[0031] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle.
[0032] Figure 7 This is a schematic diagram of the structure of the indicator provided in the embodiments of this application.
[0033] Figure 8 This is a schematic diagram of the structure of a linkage component provided in an embodiment of this application.
[0034] Figure 9 This is a schematic diagram of the arc-extinguishing shield provided in an embodiment of this application.
[0035] Figure 10 for Figure 9 A magnified view of a portion of point C.
[0036] Figure 11 This is a partial schematic diagram of a linkage mechanism in another example provided in the embodiments of this application.
[0037] Figure 12 For Figure 11 Local enlarged view at D.
[0038] Reference signs:
[0039] 1 - shell, 11 - cover, 111 - recess, 112 - first limiting part, 12 - arc extinguishing cover, 121 - second limiting part,
[0040] 2 - indicator, 21 - protrusion, 22 - connecting shaft, 23 - first contact part, 24 - second contact part, 3 - linkage mechanism,
[0041] 31 - linkage, 311 - connecting part, 3111 - hollow hole, 312 - connecting plate, 313 - connecting hole, 3131 - sliding section,
[0042] 3132 - inner convex arc section, 3133 - outer convex arc section, 314 - mounting hole, 32 - telescopic assembly, 321 - telescopic shaft, 322 - elastic member; 10 - contact support. DETAILED DESCRIPTION
[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising," "comprises" and "including" as well as their conjugates, as used herein, are intended to encompass the inclusion of one or more integers, features, elements, components, steps, operations, and / or functions, but not the exclusion thereof.
[0045] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. It is explicitly contemplated that embodiments described herein can be combined with each other.
[0046] The positional words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0047] In addition, the terms "first", "second", and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, and are not intended to describe a particular order, and can explicitly or implicitly include one or more of the features.
[0048] In the description of the present application, unless otherwise stated, "a plurality of" means two or more (including two), and similarly "a plurality of groups" means two or more groups (including two groups).
[0049] First, as shown in Figure 1 The contactor provided by the embodiments of the present application includes a contact support 10 and a top-hanging auxiliary contact connection structure as shown in Figure 2 The linkage mechanism 3 of the top-hanging auxiliary contact connection structure is arranged in a following manner on the contact support 10.
[0050] In specific implementation, the contactor further includes a stationary contact and a movable contact, the movable contact is fixedly installed on the contact support 10, and the stationary contact is fixedly installed in the shell 1.
[0051] The movable contact is installed on the contact support 10, and the contact support 10 is arranged in a sliding manner in the shell 1. In this case, when an electric current is passed through the coil of the contactor, the coil generates a magnetic field, causing the movable contact and the stationary contact to attract each other. Under the action of electromagnetic attraction, the contact support 10 drives the movable contact to slide towards the stationary contact. When the movable contact and the stationary contact are attracted to each other, the contactor is closed, and the circuit in which the contactor is located is connected.
[0052] When the coil of the contactor is de-energized, the electromagnetic attraction disappears, and the contact support 10 drives the movable contact to slide away from the stationary contact. The movable contact and the stationary contact are separated, the contactor is opened, and the circuit in which the contactor is located is disconnected.
[0053] It should be noted that the linkage mechanism 3 of the top-hanging auxiliary contact connection structure is arranged in a following manner on the contact support 10, that is, the linkage mechanism 3 moves synchronously with the movement of the contact support 10.
[0054] Referring to Figure 2 As shown in the drawings, the top-hanging auxiliary contact connecting structure provided by the embodiments of the present application comprises a shell 1, an indicating piece 2 and a linkage mechanism 3. One side of the shell 1 is provided with a mounting groove. In the depth direction of the mounting groove, a first limiting portion 112 and a second limiting portion 121 are sequentially arranged on the groove wall of the mounting groove. The indicating piece 2 is slidably arranged in the depth direction in the mounting groove. One end of the indicating piece 2 extends out of the mounting groove and is used for connecting the top-hanging auxiliary contact. The linkage mechanism 3 is slidably arranged in the depth direction in the shell 1, and the indicating piece 2 is movably arranged in the linkage mechanism 3. The indicating piece 2 has a driving position and a sliding position relative to the linkage mechanism 3. In the driving position, the indicating piece 2 is limited in the linkage mechanism 3, and the linkage mechanism 3 drives the indicating piece 2 to slide between the first limiting portion 112 and the second limiting portion 121. In the sliding position, the indicating piece 2 is limited in the first limiting portion 112 or the second limiting portion 121, and the linkage mechanism 3 slides relative to the indicating piece 2.
[0055] When the above technical solution is adopted, in the depth direction of the mounting groove, the first limiting portion 112 and the second limiting portion 121 are sequentially arranged on the groove wall of the mounting groove, and the indicating piece 2 is slidably arranged in the depth direction in the mounting groove.
[0056] In the driving position, the linkage mechanism 3 drives the indicating piece 2 to slide between the first limiting portion 112 and the second limiting portion 121.
[0057] In the sliding position, the indicating piece 2 is limited in the first limiting portion 112 or the second limiting portion 121, and at this time, the linkage mechanism 3 slides relative to the indicating piece 2.
[0058] When the indicating piece 2 is limited in the first limiting portion 112 or the second limiting portion 121, the linkage mechanism 3 can still slide in the depth direction relative to the indicating piece 2, that is, the movement stroke of the linkage mechanism 3 is not the same as the movement stroke of the indicating piece 2, and the movement stroke of the linkage mechanism 3 is greater than the movement stroke of the indicating piece 2.
[0059] The linkage mechanism 3 is followingly arranged on the contact support 10, and the movable contact is fixedly installed on the contact support 10, so the movement stroke of the linkage mechanism 3 is equal to the movement stroke of the movable contact.
[0060] In this way, when the model and type of the contactor are different, the movement stroke of the movable contact is different, the movement stroke of the linkage mechanism 3 is also different, and the movement stroke of the indicating piece 2 is consistent.
[0061] Since the top-hanging auxiliary contact is installed on the indicating piece 2, the movement stroke of the top-hanging auxiliary contact is consistent.
[0062] The stroke of the top-hanging auxiliary contact is not affected by the different models and types of the contactor.
[0063] Therefore, the same type of top-hanging auxiliary contact can be used on contactors of different specifications, so that contactors of different specifications can use the same type of top-hanging auxiliary contact, improving the universality of the top-hanging auxiliary contact, reducing the specifications of the top-hanging auxiliary contact, and reducing manufacturing costs, so that the top-hanging auxiliary contact has universality and uniformity.
[0064] In actual cases, the shell 1 includes a cover body 11 and an arc extinguishing cover 12, and the cover body 11 is covered on the arc extinguishing cover 12.
[0065] As shown in Figure 3 and Figure 4 , the first limiting part 112 is arranged on the side of the cover body 11 facing the arc extinguishing cover 12. The second limiting part 121 is arranged on the arc extinguishing cover 12.
[0066] The cover body 11 and the arc extinguishing cover 12 can be fixedly connected by clamping or screw connection, of course, the actual is not limited to this.
[0067] The mounting groove is arranged on the arc extinguishing cover 12, and the mounting groove penetrates the cover body 11.
[0068] It should be noted that the depth direction of the mounting groove refers to the direction from the groove opening to the groove bottom of the mounting groove.
[0069] In the embodiments provided in the present application, the direction of the cover body 11 to the arc extinguishing cover 12, the direction of the first limiting part 112 to the second limiting part 121, and the depth direction of the mounting groove are all parallel.
[0070] The indicating part 2 can slide relative to the shell 1 along the depth direction of the mounting groove in the mounting groove.
[0071] One end of the indicating part 2 protrudes out of the mounting groove, so as to connect the top-hanging auxiliary contact.
[0072] In specific implementation, taking the placement direction of the contactor as shown in Figure 1 and Figure 2 , the first limiting part 112 is located above the second limiting part 121.
[0073] As shown in Figures 2 to 4 , when the coil of the contactor passes current, the coil will generate a magnetic field, so that the moving contact and the static contact attract each other. Under the action of electromagnetic force, the contact support 10 drives the linkage mechanism 3 to move towards the static contact, so that the linkage mechanism 3 moves downward. At this time, the indicating part 2 is limited to the linkage mechanism 3, and the indicating part 2 is in the driving position, and the linkage mechanism 3 drives the indicating part 2 to slide downward in the depth direction in the mounting groove.
[0074] When the indicating part 2 moves to the second limiting part 121, the indicating part 2 is in limiting contact with the second limiting part 121, and the indicating part 2 stops moving.
[0075] After that, under the action of electromagnetic attraction, the contact support 10 continues to drive the linkage mechanism 3 to move downward, while the indicating piece 2 remains stationary, the indicating piece 2 switches from the driving position to the sliding position, the linkage mechanism 3 moves downward relative to the indicating piece 2, until the moving contact and the static contact are attracted.
[0076] When the coil of the contactor is de-energized, the electromagnetic attraction disappears, the contact support 10 drives the linkage mechanism 3 to move away from the static contact, so that the linkage mechanism 3 slides upward, at this time, the indicating piece 2 is in limiting contact with the second limiting portion 121, and the indicating piece 2 stops moving.
[0077] When the linkage mechanism 3 contacts the indicating piece 2, the indicating piece 2 is disengaged from the second limiting portion 121, the indicating piece 2 is limited to the linkage mechanism 3, the indicating piece 2 switches from the sliding position to the driving position, and the linkage mechanism 3 can drive the indicating piece 2 to move upward until the indicating piece 2 is limited to the first limiting portion 112.
[0078] When the indicating piece 2 is limited to the first limiting portion 112, the indicating piece 2 stops moving, and then the linkage mechanism 3 can still move upward relative to the indicating piece 2.
[0079] In one possible implementation, as shown in Figure 5 , Figure 6 and Figure 7 , one of the protruding portion 21 and the recessed portion 111 is arranged on the slot wall of the mounting slot, and the other one of the protruding portion 21 and the recessed portion 111 is arranged on the outer wall of the indicating piece 2.
[0080] In particular implementation, as shown in Figure 5 and Figure 6 , the recessed portion 111 is arranged on the cover body 11.
[0081] As shown in Figure 7 , the protruding portion 21 is arranged on the indicating piece 2.
[0082] The protruding portion 21 cooperates with the recessed portion 111, and the protruding portion 21 can play a guiding role to guide the indicating piece 2 to slide in a preset direction relative to the shell 1, thereby improving the stability of the indicating piece 2 when sliding relative to the shell 1.
[0083] In actual cases, the protruding portion 21 can be integrally machined and formed with the indicating piece 2, of course, the protruding portion 21 can also be fixedly arranged on the indicating piece 2 by welding, screw connection or the like. Of course, this is only an example and is not a specific limitation.
[0084] Similarly, the recessed portion 111 can be formed on the cover body 11, or the cover body 11 can be directly integrally machined and formed to form the cover body 11 with the recessed portion 111 when the cover body 11 is machined.
[0085] In an alternative, the linkage mechanism 3 comprises a linkage 31 as shown in Figure 8 The indicating member 2 is movably arranged on the linkage 31.
[0086] In practice, the lower end of the linkage 31 is arranged on the contact support 10, and the lower end of the linkage 31 can be fixedly mounted on the contact support 10, so that the linkage 31 can move synchronously with the contact support 10.
[0087] Referring to Figure 7 and Figure 8 The linkage 31 has a connecting hole 313 extending along the depth direction of the mounting groove. The indicating member 2 has a connecting shaft 22 for movably connecting with the linkage mechanism 3, and the connecting shaft 22 is movably arranged in the connecting hole 313.
[0088] The connecting shaft 22 cooperates with the connecting hole 313, the connecting shaft 22 can be inserted in the connecting hole 313, and the connecting shaft 22 can slide in the connecting hole 313 relative to the linkage 31 along the extension direction of the connecting hole 313.
[0089] A third limiting portion is arranged on the hole wall of the connecting hole 313. When the indicating member 2 is in the driving position, the indicating member 2 is limited by the third limiting portion.
[0090] It should be noted that the indicating member 2 can slide relative to the linkage 31, so that the indicating member 2 is in the sliding position, and under the action of the third limiting portion, the indicating member 2 can move synchronously with the linkage 31, so that the indicating member 2 is in the driving position.
[0091] In specific implementation, when the coil of the contactor passes current, the coil generates a magnetic field, so that the moving contact and the static contact attract each other. Under the action of electromagnetic force, the contact support 10 drives the linkage 31 to move towards the static contact, so that the linkage 31 moves downward. At this time, the connecting shaft 22 is below the third limiting portion, the connecting shaft 22 is limited by the third limiting portion, the indicating member 2 is in the driving position, and the linkage 31 drives the indicating member 2 to slide downward in the mounting groove along the depth direction.
[0092] When the indicating member 2 moves to the second limiting portion 121, the indicating member 2 is in limiting contact with the second limiting portion 121, and the indicating member 2 stops moving.
[0093] Then, under the action of electromagnetic force, the contact support 10 continues to drive the linkage 31 to move downward, while the indicating member 2 remains stationary, forcing the connecting shaft 22 to pass through the third limiting portion along the depth direction, so that the third limiting portion is below the connecting shaft 22, the indicating member 2 switches from the driving position to the sliding position, and the linkage 31 continues to move downward relative to the indicating member 2 until the moving contact and the static contact are attracted.
[0094] When the coil of the contactor is powered off, the electromagnetic attraction disappears, the contact support 10 drives the linkage 31 to move away from the static contact, so that the linkage 31 slides upward, at this time, the indicating piece 2 is in contact with the second limiting part 121, and the indicating piece 2 stops moving. When the third limiting part contacts the connecting shaft 22 of the indicating piece 2, the indicating piece 2 is disengaged from the second limiting part 121, and the indicating piece 2 is limited by the third limiting part. The indicating piece 2 is switched from the sliding position to the driving position, and the linkage 31 can drive the indicating piece 2 to move upward until the indicating piece 2 is limited by the first limiting part 112.
[0095] When the indicating piece 2 is limited by the first limiting part 112, the indicating piece 2 stops moving. When the linkage 31 continues to move upward, the connecting shaft 22 is forced to pass through the third limiting part again along the depth direction, so that the third limiting part is located above the connecting shaft 22, and then the linkage 31 can still continue to move upward relative to the indicating piece 2.
[0096] In actual cases, the first limiting part 112 can be provided in the form of a clamping groove. When the connecting shaft 22 is in contact with the first limiting part 112, the connecting shaft 22 can be clamped in the clamping groove to prevent the indicating piece 2 from falling off.
[0097] Of course, in specific implementation, the third limiting part can also be arranged at a position close to the lower end of the connecting hole 313. In this way, when the indicating piece 2 is limited by the first limiting part 112 and stops moving, and when the third limiting part is located above the connecting shaft 22, the connecting shaft 22 can be in contact with the lower end of the connecting hole 313 to prevent the indicating piece 2 from falling off.
[0098] In an example, as shown in Figure 8 the connecting hole 313 has a sliding segment 3131, an inner convex arc segment 3132 and an outer convex arc segment 3133 connected along the depth direction. At the position of the inner convex arc segment 3132, the minimum distance between the hole walls of the connecting hole 313 is smaller than the diameter of the connecting shaft 22, so as to form the third limiting part.
[0099] In this way, when the connecting shaft 22 is located in the sliding segment 3131, the indicating piece 2 is in the sliding position, and the connecting shaft 22 can slide in the connecting hole 313.
[0100] In addition, it should be noted that the inner convex arc segment 3132 can allow the connecting shaft 22 to pass through in the depth direction.
[0101] In specific implementation, in combination with Figures 2 to 4 and Figures 7 to 10As shown, under the action of electromagnetic attraction, the contact support 10 drives the linkage 31 to move towards the stationary contact, causing the linkage 31 to move downward. At this time, the connecting shaft 22 is located below the inner convex arc segment 3132, the connecting shaft 22 is limited to the inner convex arc segment 3132, the indicator 2 is in the driving position, and the linkage 31 drives the indicator 2 to slide downward in the mounting groove along the depth direction.
[0102] When the indicator 2 moves to the second limiting part 121, the indicator 2 makes limiting contact with the second limiting part 121, and the indicator 2 stops moving.
[0103] Subsequently, under the action of electromagnetic attraction, the contact support 10 continues to drive the linkage 31 to move downward, while the indicator 2 remains stationary, forcing the connecting shaft 22 to pass through the inner convex arc section 3132 along the depth direction, so that the inner convex arc section 3132 is located below the connecting shaft 22. The indicator 2 switches from the driving position to the sliding position, and the connecting shaft 22 is located inside the sliding section 3131. The linkage 31 continues to move downward relative to the indicator 2 until the moving contact and the stationary contact are attracted together.
[0104] When the contactor coil is de-energized, the electromagnetic attraction disappears, and the contact support 10 drives the linkage 31 to move away from the stationary contact, causing the linkage 31 to slide upward. At this time, the indicator 2 makes contact with the second limiting part 121 and stops moving. When the inner convex arc segment 3132 contacts the connecting shaft 22 of the indicator 2, the indicator 2 disengages from the second limiting part 121, and the indicator 2 is limited to the inner convex arc segment 3132. The indicator 2 switches from the sliding position to the driving position, and the linkage 31 can drive the indicator 2 to move upward until the indicator 2 is limited to the first limiting part 112.
[0105] When the indicator 2 is limited to the first limiting part 112, the indicator 2 stops moving. When the linkage 31 continues to move upward, it forces the connecting shaft 22 to pass through the inner convex arc segment 3132 again along the depth direction, so that the inner convex arc segment 3132 is above the connecting shaft 22. After that, the linkage 31 can still continue to move upward relative to the indicator 2 until the connecting shaft 22 is limited to the lower end of the connecting hole 313.
[0106] In another example, such as Figure 11 As shown, the linkage mechanism 3 also includes a telescopic component 32, which is disposed on the linkage member 31. The telescopic component 32 has a telescopic end, which has an extended position and a retracted position relative to the connecting hole 313. When the telescopic end is in the extended position, it is located inside the connecting hole 313 and can prevent the limit indicator 2 from being in the driving position. When the telescopic end is in the retracted position, it releases the obstruction limit on the indicator 2, allowing the indicator 2 to switch between the driving position and the sliding position.
[0107] In some embodiments, the linkage 31 is provided with a mounting hole 314, which is in communication with the connecting hole 313. The telescopic assembly 32 comprises a telescopic shaft 321 and an elastic member 322. The telescopic shaft 321 is movably arranged in the mounting hole 314, and has a telescopic end. The elastic member 322 is arranged in the mounting hole 314, and has two ends elastically acting on the telescopic shaft 321 and the linkage 31 respectively, for exerting an acting force on the telescopic end away from the mounting hole 314, so that the telescopic end is located in the connecting hole 313.
[0108] In practice, as shown in Figure 11 , the elastic member 322 can be a spring, and the axis of the spring can be perpendicular to the depth direction.
[0109] The telescopic shaft 321 is provided with an extension in limiting contact with one end of the elastic member 322, and the elastic member 322 is sleeved on the telescopic shaft 321. Under the action of the elastic member 322, the telescopic end of the telescopic shaft 321 is located in the connecting hole 313, so that the telescopic end forms a third limiting portion.
[0110] In this way, the third limiting portion can be formed by the inner convex arc segment 3132 or by the telescopic end of the telescopic shaft 321, which enriches the forming mode of the third limiting portion and facilitates selection and arrangement according to actual conditions.
[0111] In addition, it should be noted that the telescopic end can be provided in a hemispherical structure, so that the connecting shaft 22 can pass through the telescopic end.
[0112] In specific implementation, in combination with Figures 2 to 4 , Figure 7 and Figures 9 to 12 , under the action of electromagnetic force, the contact support 10 drives the linkage 31 to move towards the static contact, so that the linkage 31 moves downward. At this time, under the action of the elastic member 322, the telescopic end of the telescopic shaft 321 is located in the connecting hole 313, the connecting shaft 22 is located below the telescopic end, the connecting shaft 22 is limited by the telescopic end, the indicator 2 is in the driving position, and the linkage 31 drives the indicator 2 to slide downward in the mounting groove along the depth direction.
[0113] When the indicator 2 moves to the second limiting portion 121, the indicator 2 is in limiting contact with the second limiting portion 121, and the movement of the indicator 2 is stopped.
[0114] After that, under the action of electromagnetic force, the contact support 10 continues to drive the linkage 31 to move downward, while the indicating element 2 remains stationary. In this case, the connecting shaft 22 can press the telescopic shaft 321, further forcing the elastic element 322 to be compressed, so that the connecting end is retracted into the mounting hole 314. At this time, the connecting shaft 22 can pass through the telescopic assembly 32 along the depth direction. Under the action of the elastic element 322, the telescopic end of the telescopic shaft 321 extends into the connecting hole 313. The telescopic shaft 321 is located below the connecting shaft 22, the indicating element 2 switches from the driving position to the sliding position, and the linkage 31 continues to move downward relative to the indicating element 2 until the movable contact and the static contact are attracted.
[0115] When the coil of the contactor is de-energized, the electromagnetic force disappears, the contact support 10 drives the linkage 31 to move away from the static contact, so that the linkage 31 slides upward, at this time, the indicating element 2 is in limiting contact with the second limiting portion 121, and the indicating element 2 stops moving. When the telescopic shaft 321 contacts the connecting shaft 22 of the indicating element 2, the indicating element 2 is out of contact with the second limiting portion 121, and the indicating element 2 is limited by the telescopic shaft 321, the indicating element 2 switches from the sliding position to the driving position, and the linkage 31 can drive the indicating element 2 to move upward until the indicating element 2 is limited by the first limiting portion 112.
[0116] When the indicating element 2 is limited by the first limiting portion 112, the indicating element 2 stops moving. When the linkage 31 continues to move upward, the connecting end is retracted into the mounting hole 314, and the connecting shaft 22 passes through the telescopic assembly 32 along the depth direction again, so that the telescopic shaft 321 is located above the connecting shaft 22. After that, the linkage 31 can still move upward relative to the indicating element 2 until the connecting shaft 22 is limited by the lower end of the connecting hole 313.
[0117] As an optional way, as shown in Figure 7 and Figure 8 , the linkage 31 includes a connecting portion 311 and two oppositely arranged connecting plates 312, and the connecting portion 311 is used to be connected with the contact support 10. Specifically, the lower end of the connecting portion 311 can be fixedly connected with the contact support 10.
[0118] The two oppositely arranged connecting plates 312 are respectively arranged on both sides of the connecting portion 311, and the two connecting plates 312 are both provided with a connecting hole 313. The indicating element 2 includes two connecting shafts 22 which are respectively matched with the two connecting holes 313.
[0119] In this way, the two connecting shafts 22 matched with the two connecting holes 313 can improve the connection stability between the linkage 31 and the indicating element 2.
[0120] In combination with Figure 4 , Figure 7 and Figure 10As shown, the indicating piece is provided with a first contact portion 23 for limiting contact with the first limiting portion 112, and a second contact portion 24 for limiting contact with the second limiting portion 121.
[0121] Specifically, as shown in Figure 7 the first contact portion 23 is an upper portion of the connecting shaft 22, and the second contact portion 24 is located on the side wall of the indicating piece 2.
[0122] As an example, as shown in Figure 8 a hollow hole 3111 is formed on the connecting portion 311.
[0123] In this way, the weight of the linkage 31 can be reduced, and the material usage can be saved. At the same time, the load of the linkage 31 acting on the contact support 10 can be reduced.
[0124] In particular implementation, referring to Figure 3 and Figure 4 the number of the first limiting portion 112 is multiple, and the multiple first limiting portions 112 can be arranged along the circumference of the mounting groove.
[0125] At this time, the indicating piece 2 can be in limiting contact with the multiple first limiting portions 112, so as to improve the firmness of the indicating piece 2, and avoid the phenomenon of tilting of the indicating piece 2 when being limited by the first limiting portion 112.
[0126] Similarly, referring to Figure 10 the number of the second limiting portion 121 is multiple, and the multiple second limiting portions 121 are arranged along the circumference of the mounting groove. The indicating piece 2 can be in limiting contact with the multiple second limiting portions 121, so as to improve the firmness of the indicating piece 2, and avoid the phenomenon of tilting of the indicating piece 2 when being limited by the second limiting portion 121.
[0127] In actual cases, the number of the first limiting portion 112 and the number of the second limiting portion 121 are not limited here, and are subject to actual cases.
[0128] In the embodiments provided in the present application, the number of the first limiting portion 112 is two, and the number of the second limiting portion 121 is four, but the actual number is not limited to this.
[0129] In the description of the application, it needs to be explained that, unless explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, the "connection" or "connecting" of mechanical structure can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection through a spacer, for example, fixed connection through screws, bolts or other spacers; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
Claims
1. A top-hat auxiliary contact connection structure, characterized by, The utility model relates to a kind of auxiliary contact device, including: Shell, one side of the shell is provided with mounting slot;In the depth direction of the mounting slot, the slot wall of the mounting slot is sequentially provided with first limit part and second limit part; Indicator, slidably arranged in the mounting slot along the depth direction;One end of the indicator extends outside the mounting slot, for connecting top hanging auxiliary contact; Linkage mechanism, slidingly arranged in the shell along the depth direction;The indicator is movably arranged in the linkage mechanism; The indicator has driving position and sliding position relative to the linkage mechanism, in the driving position, the indicator is limited in the linkage mechanism, the linkage mechanism drives the indicator to slide between the first limit part and the second limit part;In the sliding position, the indicator is limited in the first limit part or the second limit part, and the linkage mechanism slides relative to the indicator.
2. The top-mounting auxiliary contact connection structure according to claim 1, characterized by The slot wall of the mounting slot is provided with one of the protruding part and the recess part matched with each other, and the other of the protruding part and the recess part is provided on the outer wall of the indicator.
3. The top-mounting auxiliary contact connection structure according to claim 1, characterized by The linkage mechanism includes linkage, and the indicator is movably arranged in the linkage;The linkage has connecting hole extending along the depth direction of the mounting slot;The indicator has connecting shaft for movably connecting with the linkage;The connecting shaft is movably arranged in the connecting hole;The hole wall of the connecting hole is provided with third limit part;When the indicator is in the driving position, the indicator is limited in the third limit part.
4. The top-mounting auxiliary contact connection structure according to claim 3, characterized by Along the depth direction, the connecting hole has sliding section, inner convex arc section and outer convex arc section connected with each other;In the position of the inner convex arc section, the minimum distance between the hole wall of the connecting hole is less than the diameter of the connecting shaft, so that the inner convex arc section forms the third limit part.
5. The top-mounting auxiliary contact connection structure according to claim 3, characterized by The linkage mechanism further includes telescopic assembly arranged in the linkage;The telescopic assembly has telescopic end, and the telescopic end has extended position and retracted position relative to the connecting hole;When the telescopic end is in the extended position, the telescopic end is located in the connecting hole, and the telescopic end can block the indicator in the driving position;When the telescopic end is in the retracted position, the telescopic end unblocks the indicator, and allows the indicator to switch between the driving position and the sliding position.
6. The top-mounting auxiliary contact connection structure according to claim 5, characterized by The linkage is provided with mounting hole, and the mounting hole communicates with the connecting hole;The telescopic assembly includes: Telescopic shaft movably arranged in the mounting hole;The telescopic shaft has the telescopic end; Resilient member arranged in the mounting hole;Two ends of the resilient member are elastically acted on the telescopic shaft and the linkage respectively, so as to apply force away from the mounting hole to the telescopic end, so that the telescopic end is located in the connecting hole.
7. The top-mounting auxiliary contact connection structure according to claim 3, characterized by The linkage includes: Connecting part for connecting with contact support; Two oppositely arranged connecting plates are arranged on both sides of the connecting part;The connecting hole is arranged on the two connecting plates;The indicator includes two connecting shafts matched with the two connecting holes respectively.
8. The top-mounting auxiliary contact connection structure according to claim 7, characterized by The connecting part is provided with hollow hole.
9. The top-mounting auxiliary contact connection structure according to claim 7, characterized by The number of the first limiting parts is multiple, and the multiple first limiting parts are arranged along the circumference of the mounting slot; and / or The number of the second limiting parts is multiple, and the multiple second limiting parts are arranged along the circumference of the mounting slot.
10. A contactor characterized by comprising: Comprising: The top-hanging auxiliary contact connection structure according to any one of claims 1 to 9; A contact support is slidingly arranged in the housing of the top-hanging auxiliary contact connection structure; and a linkage mechanism of the top-hanging auxiliary contact connection structure is arranged in the contact support in a following manner.