Contact supporting structure of contactor and contactor

Abstract

The contactor contact support structure comprises a main contact support and an auxiliary contact support, the main contact support is provided with a connecting part, the connecting part is provided with a jack, the auxiliary contact support is provided with an insertion part, the insertion part is provided with an elastic buckle, and the elastic buckle is provided with a clamping groove. A pre-pressing groove is further formed in the position, at the inserting opening, of the connecting part, and the inner diameter of the pre-pressing groove is not smaller than the outer diameter of the inserting part on the cross section in the deformation direction of the elastic buckle, so that the elastic buckle of the inserting part can be matched in the pre-pressing groove in the state that deformation is not generated. Before assembling, the inserting part of the auxiliary contact support can be matched into the preassembling groove to realize prepositioning, and then external force is applied to insert the inserting part of the auxiliary contact support into the connecting part of the main contact support for clamping and fixing. Therefore, the problems of poor assembly, damage to the main contact support and the like caused by poor alignment are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of electrical devices, specifically to a contactor contact support structure and a contactor. Background Technology

[0002] The main function of a contactor is to control the connection and disconnection of the load by controlling the contact system through an electromagnetic system. The moving iron core of the electromagnetic system is fixedly connected to the contact support. The contact bridge of the main circuit contact system is mounted on the main contact support via springs and other structural components. The contact bridge of the auxiliary circuit is mounted on the auxiliary contact support. The main contact support and the auxiliary contact support are connected by a snap-fit ​​mechanism; that is, the main contact support has a connecting part with a socket, and the auxiliary contact support has an insertion part with a spring-loaded snap-fit. During assembly, the insertion part is aligned with the socket of the connecting part, and then pressed downwards to deform the spring-loaded snap-fit ​​and engage with the connecting part.

[0003] However, in actual production, errors in the production of components may make it difficult for the connecting part to be directly aligned with the socket from the outside, resulting in difficulty in proper assembly; and since the main contact support is made of a relatively brittle thermosetting material, misalignment may cause damage to the main contact support during the assembly process. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a contact support structure and a contactor.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A contactor contact support structure includes a main contact support and an auxiliary contact support. The main contact support has a connecting portion with a socket. The auxiliary contact support has an insertion portion with an elastic snap-fit, allowing the insertion portion to be inserted through the socket and secured to the connecting portion by the elastic snap-fit. The connecting portion also has a pre-compression groove at the socket, and the inner diameter of the pre-compression groove is not less than the outer diameter of the insertion portion in the cross-section along the deformation direction of the elastic snap-fit, so that the elastic snap-fit ​​of the insertion portion can fit into the pre-compression groove without deformation.

[0007] Furthermore, the connecting part is also provided with a limiting segment and a bayonet. The limiting segment and the bayonet are arranged sequentially at the rear end of the pre-compression groove along the insertion direction of the insertion part. The inner diameter of the limiting segment is smaller than the outer diameter of the insertion part. When the insertion part is fitted into the pre-compression groove, the elastic buckle of the insertion part is driven to deform by external force to cross the limiting segment and lock into the bayonet.

[0008] Furthermore, the limiting segment is provided with an inclined guide at its front end near the pre-compression groove. When the insertion part is inserted into the limiting segment, the elastic buckle abuts against the inclined guide and drives the elastic buckle to deform.

[0009] Furthermore, the elastic buckle includes an elastic arm and a snap-fit ​​connector disposed at the end of the elastic arm and extending outward, which snaps onto the connecting part.

[0010] Furthermore, the outer side of the card connector is provided with an inclined guide surface.

[0011] Furthermore, the insertion part is provided with two elastic buckles, which are arranged opposite to each other.

[0012] Furthermore, the insertion portion also has a boss extending toward the connection portion.

[0013] Furthermore, the main contact supports having multiple connecting portions, and the auxiliary contact supports having multiple insertion portions, with each insertion portion corresponding to one of the multiple connecting portions and forming a snap-fit ​​fixation.

[0014] Furthermore, the multiple connecting parts supported by the main contact are arranged side by side and connected by a main contact support link; the multiple insertion parts supported by the auxiliary contact are arranged side by side and connected by an auxiliary contact support link.

[0015] A contactor, comprising at least the contact support structure described above.

[0016] The technical solution provided by this utility model has the following beneficial effects:

[0017] A pre-compression groove with an inner diameter not less than the outer diameter of the insertion part is provided at the socket of the connection part supported by the main contact. Before assembly, the elastic snap of the insertion part of the auxiliary contact support can be engaged into the pre-compression groove to achieve pre-positioning. Then, external force is applied to insert the insertion part of the auxiliary contact support into the connection part of the main contact support for locking and fixing. In this way, problems such as poor assembly and damage to the main contact support caused by misalignment are effectively avoided. Attached Figure Description

[0018] Figure 1 The figure shown is a three-dimensional schematic diagram of the main contact support in the embodiment;

[0019] Figure 2 The figure shown is a top view of the main contact support in the embodiment;

[0020] Figure 3 As shown Figure 2 Sectional view of line AA in the middle;

[0021] Figure 4 As shown Figure 2 Sectional view of the middle BB line;

[0022] Figure 5 As shown Figure 4 Enlarged view of region C in the middle;

[0023] Figure 6 The figure shown is a three-dimensional schematic diagram of the contactor's contact support structure in the assembled state in the embodiment.

[0024] Figure 7 As shown Figure 6 Top view of the structure shown;

[0025] Figure 8 As shown Figure 7 Sectional view of the middle EE line;

[0026] Figure 9 As shown Figure 7 Sectional view of the middle FF line;

[0027] Figure 10 As shown Figure 9 A magnified diagram of region D in the middle. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] In the description of this invention, terms such as "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 invention.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0031] Reference Figures 1 to 10As shown, this embodiment provides a contactor contact support structure, including a main contact support 10 and an auxiliary contact support 20. The main contact support 10 has a connecting portion 11, on which a socket 111 and a pre-compression groove 12 are provided. The auxiliary contact support 20 has an insertion portion 21, on which an elastic latch 22 is provided. In this embodiment, the main contact support 10 has three connecting portions 11 arranged side by side, and the auxiliary contact support 20 has three insertion portions 21 arranged side by side, with each of the three insertion portions 21 corresponding to one of the three connecting portions 11. On the cross-section along the deformation direction of the elastic latch, as shown... Figure 4 , Figure 5 , Figure 9 and Figure 10 As shown in the cross-section, the inner diameter L1 of the pre-compression groove 12 is not less than the outer diameter L2 of the insertion part 21 (which is the maximum distance between the two elastic latches 22), so that the elastic latches 22 of the insertion part 21 can fit into the pre-compression groove 12 without deformation. With this configuration, before assembly, the elastic latches 22 of the insertion part 21 of the auxiliary contact support 20 can fit into the pre-assembly groove 12 for pre-positioning. Then, external force is applied to insert the insertion part 21 of the auxiliary contact support 20 into the connecting part 11 of the main contact support 10 for locking and fixing. This effectively avoids problems such as poor assembly and damage to the main contact support 10 caused by misalignment.

[0032] Furthermore, the inner diameter L1 of the pre-compression groove 12 is preferably slightly larger than the outer diameter L2 of the insertion part 21. In this way, even if the dimensions of the three insertion parts 21 or the three connecting parts 11 are slightly different, it can be well ensured that each insertion part 21 can be pre-assembled in the pre-compression groove 12 of the corresponding connecting part 11.

[0033] Furthermore, in this embodiment, each insertion part 21 has two elastic latches 22, which are arranged opposite to each other. The direction of the line connecting the two elastic latches 22 is the deformation direction of the elastic latches 22. Figure 10 As shown, the two elastic latches 22 are distributed left and right, and the deformation direction of the two elastic latches 22 is also left and right. Each insertion part 21 is provided with two opposite elastic latches 22, which makes the engagement more secure and less prone to shaking. Of course, in other embodiments, each insertion part 21 may also be provided with one elastic latch 22, or more than two elastic latches 22, such as four elastic latches 22, which are distributed at the front, back, left and right sides, respectively.

[0034] Furthermore, in this embodiment, the connecting part 11 is also provided with a limiting segment 13 and a bayonet 14. The limiting segment 13 and the bayonet 14 are sequentially arranged at the rear end of the pre-compression groove 12 along the insertion direction of the insertion part 21. The inner diameter L3 of the limiting segment 13 is smaller than the outer diameter L2 of the insertion part 21. When the insertion part 21 is engaged in the pre-compression groove 12, the elastic buckle 22 of the insertion part 21 is deformed by external force and passes over the limiting segment 13 and is engaged in the bayonet 14. Specifically, the elastic buckle 22 returns to its original shape when it is engaged in the bayonet 14. In this way, the connecting part 11 and the insertion part 21 are engaged and fixed. Specifically, the bayonet 14 is an opening that extends laterally to the outside of the connecting part 11. Of course, in other embodiments, the bayonet 14 can also be a recessed structure that does not extend to the outside of the connecting part 11.

[0035] The limiting section 13 is provided with an inclined guide 131 at the front end near the pre-compression groove 12. When the insertion part 21 is inserted into the limiting section 13, the elastic buckle 22 abuts against the inclined guide 131 and drives the elastic buckle 22 to deform, making the insertion smoother.

[0036] The elastic buckle 22 includes an elastic arm 221 and a snap connector 222 located at the end of the elastic arm 221 and extending outward. The snap connector 222 is snapped into the slot 14 of the connecting part. In this embodiment, the snap connector 222 abuts against the upper side wall of the slot 14 to achieve a limiting position.

[0037] Furthermore, the outer side of the snap-fit ​​connector 222 is provided with an inclined guide surface 223. When it is pre-installed in the pre-pressurization groove 12 and pressed down, the inclined guide surface 223 cooperates with the inclined guide portion 131 of the limiting section 13, further ensuring that the elastic snap-fit ​​22 can deform inward smoothly to achieve insertion; the insertion action is smoother. Of course, in other embodiments, only the inclined guide portion 131 of the limiting section 13 or only the inclined guide surface 223 of the snap-fit ​​connector 222 can be provided to achieve guidance, or other methods can be used to achieve insertion guidance.

[0038] Specifically, the main contact support 10 has three connecting parts 11 arranged side by side, and the three connecting parts 11 are connected by a main contact support link 15. The auxiliary contact support 20 has three insert parts 21 arranged side by side, and the three insert parts 21 are connected by an auxiliary contact support link 24. In this embodiment, the main contact support link 15 and the three connecting parts 11 of the main contact support 10 are integrally connected, and the auxiliary contact support link 24 and the three insert parts 21 of the auxiliary contact support 20 are integrally connected. This can be easily manufactured by injection molding. Of course, in other embodiments, the connecting parts 11 of the main contact support 10 and the insert parts 21 of the auxiliary contact support 20 can be one, two, or more. When multiple insert parts 21 are used, their arrangement can be adjusted according to actual conditions, as long as the multiple insert parts 21 correspond one-to-one with the multiple connecting parts 11 and can form a snap-fit ​​fixation.

[0039] Furthermore, the insertion part 21 also has a boss 23 extending toward the connecting part 11. When assembling the movable spring 31, a spring 32 is provided on the top of the movable spring 31, and the top of the spring 32 is sleeved on the boss 23 to realize the installation of the movable spring 31.

[0040] This embodiment also provides a contactor, which includes at least the contact support structure of the contactor described above.

[0041] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A contact support structure of a contactor, comprising a main contact support and an auxiliary contact support, the main contact support having a connecting portion on which a socket is provided, the auxiliary contact support having an inserting portion on which an elastic buckle is provided, so that the inserting portion is inserted into the socket and fixed on the connecting portion by the elastic buckle; characterized in that: The connecting part is further provided with a pre-pressing groove at the socket, and in the cross section along the deformation direction of the elastic buckle, the inner diameter of the pre-pressing groove is not less than the outer diameter of the inserting part, so that the elastic buckle of the inserting part can be matched in the pre-pressing groove without deformation.

2. The contact support structure of the contactor according to claim 1, characterized by: The connecting part is further provided with a limiting section and a socket, the limiting section and the socket are sequentially arranged at the rear end of the pre-pressing groove along the inserting direction of the inserting part, the inner diameter of the limiting section is less than the outer diameter of the inserting part, and when the inserting part is matched in the pre-pressing groove, the elastic buckle of the inserting part is driven to deform by external force to pass through the limiting section and be clamped in the socket.

3. The contact support structure of the contactors according to claim 2, characterized in that: The limiting section is provided with an inclined guide part near the front end of the pre-pressing groove, and when the inserting part is inserted into the limiting section, the elastic buckle abuts on the inclined guide part to drive the elastic buckle to deform.

4. The contact support structure of the contactors according to claim 1, characterized by: The elastic buckle comprises an elastic arm and a clamping head arranged at the end of the elastic arm and extending outward, and the clamping head is clamped on the connecting part.

5. The contact support structure of the contactor according to claim 4, characterized by: The outer side of the clamping head is provided with an inclined guide surface.

6. The contact support structure of the contactors according to claim 1, characterized by: The inserting part is provided with two elastic buckles, and the two elastic buckles are oppositely arranged.

7. The contact support structure of the contactors according to claim 1, characterized by: The inserting part is further provided with a boss extending towards the connecting part.

8. The contact support structure of the contactors according to any one of claims 1 to 7, characterized in that: The main contact support has a plurality of the connecting parts, the auxiliary contact support has a plurality of the inserting parts, and the plurality of the inserting parts one-to-one correspond to the plurality of the connecting parts and form clamping fixation.

9. The contact support structure of the contactor according to claim 8, characterized by: The plurality of the connecting parts of the main contact support are arranged side by side and connected by a main contact support connecting rod, and the plurality of the inserting parts of the auxiliary contact support are arranged side by side and connected by an auxiliary contact support connecting rod.

10. A contactor characterized by: The contactor structure at least comprises the contactor of any one of claims 1 to 9.

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