Contact support, auxiliary contact module and contactor

Abstract

The contact support comprises a support body and a linkage piece arranged on the support body, a groove corresponding to the linkage piece is formed in the support body, and the linkage piece is of an elastic deformation structure, so that the linkage piece can contract and deform towards the inner direction of the groove when the linkage piece is subjected to installation pressure. According to the utility model, the linkage member is of an elastic deformation structure, and the support main body is also provided with the groove for positioning the linkage member, so that in the assembly process of the auxiliary contact module and the contactor body, when the contact support is subjected to installation pressure, the support main body is basically not bent and deformed, and only the linkage member is bent and deformed, and therefore, the auxiliary contact module can be assembled with the contactor body. And after the auxiliary contact module is assembled in place, only the linkage piece rebounds, and the bracket main body basically does not rebounds, so that the contact bridge arranged on the bracket main body is not influenced, the side turning of the contact bridge is avoided, and the structural stability of the auxiliary contact module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to a contact support, an auxiliary contact module and a contactor. Background Art

[0002] There is a prior auxiliary contact module used in conjunction with an AC contactor, which includes a housing and a contact support. The housing includes a front cover and a rear cover that are snap-fitted to each other. A chute for accommodating the contact support is formed in the middle of the snap-fitting portion of the front cover and the rear cover. At least one card slot is provided on each side of the chute, and each card slot communicates with the chute. An L-shaped member with a shape adapted thereto is clamped in each card slot. A stationary contact is provided on one side of the L-shaped member perpendicular to the chute. The contact support accommodated in the chute is provided with a hollow portion communicating with the card slots on both sides. A bridge-shaped moving contact is provided in the hollow portion. The middle of the bridge-shaped moving contact is connected to the upper side wall or the lower side wall of the hollow portion through a spring, and its two end portions protrude into the card slots on both sides and cooperate with the stationary contacts. A convex portion (equivalent to a linkage member) protruding outside the housing is provided on one side of the contact support in contact with the rear cover. A rectangular through hole for the up and down movement of the convex portion is provided at the corresponding position of the rear cover. When in use, the auxiliary contact module is snap-fitted to the side wall of the AC contactor through the snap-fitting member on its rear cover, and the convex portion is inserted into the linkage jack of the AC contactor. When the armature and the yoke of the AC contactor are attracted to each other, the contact support moves downward accordingly, so that the first bridge-shaped moving contact moves downward to contact the first pair of stationary contacts, and the circuit connected to the external terminal is turned on; the second bridge-shaped moving contact moves downward to leave the second pair of stationary contacts, and the circuit connected to the external terminal is turned off. However, the convex portion of this technical solution is rigidly connected to the contact support, and its elasticity is poor and it is not easy to bend and deform. Thus, when assembling the auxiliary contact module with the contactor body, when subjected to the pressure in the installation direction, the entire contact support will produce a large deformation, and when the convex portion enters the linkage slot inside the contactor, the contact support will produce a large resilience force, which is likely to cause the contact bridge to turn over sideways and cause abnormal circuit. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a contact support, which mainly solves the technical problem that the convex portion for linkage on the existing contact support is rigidly connected to the contact support body and has poor elasticity.

[0004] To achieve the above object, the utility model is realized through the following technical solutions:

[0005] A contact support is applied to the auxiliary contact module of a contactor, and includes a support body and a linkage member provided on the support body. A groove corresponding to the linkage member is formed on the support body, and the linkage member is a structure that can be elastically deformed, so that when the linkage member is subjected to the installation pressure, it can contract and deform in the direction of the inside of the groove.

[0006] Furthermore, the linkage member is configured to be connected to the actuating member inside the contactor body, and the linkage member is an elastically deformable structure that can bend, shrink and deform in the installation direction.

[0007] Furthermore, a groove is provided in the middle of the bracket body, and the linkage member is connected to the bracket body and is arranged corresponding to the groove.

[0008] Furthermore, the linkage part includes a linkage protrusion and an elastic connecting part. The linkage protrusion is elastically connected to the bracket body through the elastic connecting part and corresponds to the groove, so that when the linkage part is subjected to installation pressure, the linkage protrusion is driven to shrink toward the inner direction of the groove of the bracket body through the bending deformation of the elastic connecting part when subjected to force.

[0009] Furthermore, one end of the elastic connector is connected to the bracket body, while the other end is suspended and corresponds to the groove, and the linkage protrusion is arranged at the suspended end of the elastic long arm structure.

[0010] Furthermore, the elastic connecting piece is in the form of an elongated strip, one end of which is connected to the upper end of the side wall of the groove, and the other end is suspended in the air, and the elastic connecting piece is flush with the surface of the groove.

[0011] Furthermore, the elastic connecting member includes an intermediate platform portion, both ends of which are connected to the bracket body through a U-shaped bending portion and correspond to the groove, and the linkage protrusion is fixedly connected to the intermediate platform portion.

[0012] Furthermore, the openings of the two U-shaped curved portions are both oriented toward the bottom surface of the groove, and the tops of the two U-shaped curved portions are slightly higher than the middle platform portion.

[0013] Based on the same inventive concept, the utility model also provides an auxiliary contact module, including a shell, a contact bracket movably arranged in the shell, and an auxiliary contact assembly installed on the contact bracket, wherein the contact bracket is the above-mentioned contact bracket, and the shell is provided with a long strip of clearance hole corresponding to the linkage part and allowing the linkage part to be partially exposed.

[0014] Based on the same inventive concept, the utility model also provides a contactor, including a contactor body and the above-mentioned auxiliary contact module, wherein a positioning protrusion is provided in the middle of the lower end of the shell, first clips are provided on both sides of the upper end, and a movable second clip is provided in the middle of the upper end. The auxiliary contact module is fixedly connected to the contactor body by utilizing the positioning cooperation between the first positioning protrusion and the side wall of the contactor body and the clip cooperation between the first clip and the second clip and the side wall of the contactor body.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the contact support, auxiliary contact module and contactor of the present utility model, the linkage member is an elastically deformable structure, and a groove for accommodating the linkage member is provided on the support body. Thus, during the assembly process of the auxiliary contact module and the contactor body, when the contact support is subjected to the installation pressure, the support body itself hardly bends and deforms, and only the linkage member bends and deforms. Therefore, after the assembly is in place, only the linkage member rebounds, and the support body hardly rebounds. Therefore, it will not affect the contact bridge installed on the support body and will not cause it to tip over, which is beneficial to improving the structural stability of the auxiliary contact module. Brief Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the contact support according to the first embodiment of the present utility model.

[0018] Figure 2 is a side view of the contact support according to the first embodiment of the present utility model.

[0019] Figure 3 is a three-dimensional structural schematic diagram of the auxiliary contact module according to the first embodiment of the present utility model.

[0020] Figure 4 is a structural cross-sectional view of the auxiliary contact module according to the first embodiment of the present utility model.

[0021] Figure 5 is a three-dimensional structural schematic diagram of the contactor according to the first embodiment of the present utility model.

[0022] Figure 6 is a three-dimensional structural schematic diagram of the contact support according to the second embodiment of the present utility model.

[0023] Figure 7 is a side view of the contact support according to the second embodiment of the present utility model.

[0024] Reference Numeral Description:

[0025] 1. Support body, 2. Linkage member, 3. Housing, 4. Contactor body, 11. Groove, 21. Linkage convex portion, 22. Elastic connection member, 31. Long strip relief hole, 32. Positioning protrusion, 33. First buckle, 34. Second buckle, 221. Intermediate platform portion, 222. U-shaped bending portion. Detailed Embodiment

[0026] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] Embodiment 1

[0029] Please refer to the attached Figure 1 to the attached Figure 5 As shown in the figures, an embodiment of the present utility model provides a contact support, which is applied to the auxiliary contact module of a contactor. It includes a support body 1 and a linkage member 2 provided on the support body 1. A groove 11 corresponding to the linkage member 2 is formed on the support body 1, and the linkage member 2 is a structure that can be elastically deformed, so that when the linkage member 2 is subjected to an installation pressure, it can contract and deform in the direction of the inside of the groove 11. It can be understood that in this embodiment, the linkage member 2 is a structure that can be elastically deformed, and a groove 11 for accommodating the linkage member 2 is also formed on the support body 1. Thus, during the assembly process of the auxiliary contact module and the contactor body, when the contact support is subjected to an installation pressure, the support body 1 itself hardly bends and deforms, and only the linkage member 2 generates bending deformation. Therefore, after the assembly is in place, only the linkage member 2 generates a springback, and the support body 1 hardly generates a springback. Therefore, it will not affect the contact bridge installed on the support body 1 and will not cause it to tip over, which is beneficial to improving the structural stability of the auxiliary contact module.

[0030] Please refer to the attached Figure 1 and the attached Figure 2 As shown in the figures, in a preferred embodiment, the linkage member 2 is configured to be connected to the actuator inside the contactor body 4, and the linkage member 2 is an elastically deformable structure that can bend and contract in the installation direction. Preferably, the groove 11 is formed in the middle position of the support body 1, and the linkage member 2 is connected to the support body 1 and corresponds to the groove 11. However, those skilled in the art should understand that in other embodiments, the installation position of the linkage member 2 on the support body 1 is not limited to the specific implementation disclosed in this embodiment, and those skilled in the art can set its connection position according to specific needs.

[0031] Please refer to the attached Figure 1 and the attached Figure 2In one preferred embodiment, the linkage member 2 includes a linkage protrusion 21 and an elastic connector 22. The linkage protrusion 21 is elastically connected to the bracket body 1 through the elastic connector and corresponds to the groove 11, so that when the linkage member 2 is subjected to the installation pressure, the linkage protrusion 21 is driven to shrink toward the inner direction of the groove 11 of the bracket body 1 through the bending deformation of the elastic connector 22 when subjected to force. Preferably, one end of the elastic connector 22 is connected to the bracket body 1, and the other end is suspended and corresponds to the groove 11, and the linkage protrusion 21 is arranged at the suspended end of the elastic long arm structure. Further, the elastic connector 22 is a long strip structure, one end of which is connected to the upper end of the side wall of the groove 11, and the other end is suspended, and the elastic connector 22 is flush with the surface of the groove 11. It can be understood that in this embodiment, due to the variability of the linkage member 2, it is conducive to reducing the installation pressure when the auxiliary contact module is assembled with the contactor body 4, and it can be easily pressed down.

[0032] Please refer to the attached Figure 1 To Attachment Figure 4 An embodiment of the utility model further provides an auxiliary contact module, including a shell 3, a contact bracket movably arranged in the shell 3, and an auxiliary contact assembly installed on the contact bracket, wherein the contact bracket is the above-mentioned contact bracket, and the shell 3 is provided with a long strip of clearance hole 31 corresponding to the linkage part 2 and for partially exposing the linkage part 2.

[0033] Please refer to the attached Figure 1 To Attachment Figure 5 One embodiment of the utility model further provides a contactor, comprising a contactor body 4 and the above-mentioned auxiliary contact module, wherein a positioning protrusion 32 is provided in the middle of the lower end of the housing 3, first buckles 33 are provided on both sides of the upper end, and a second buckle 34 that can be pulled is provided in the middle of the upper end. The auxiliary contact module is fixedly connected to the contactor body 4 by the positioning match between the first positioning protrusion 32 and the side wall of the contactor body 4 and the buckle match between the first buckle 33 and the second buckle 34 and the side wall of the contactor body 4. In this embodiment, a positioning slot corresponding to the positioning protrusion 32 and a buckle matching structure corresponding to the two first buckles 33 and the second buckle 34 are provided on the side wall of the contactor body 4. When installing, the auxiliary contact module is first slightly tilted, and then the positioning protrusion 32 is inserted into the positioning slot, and then the auxiliary contact module is lightly pressed to make the auxiliary contact module fit with the contactor body 4, and then the auxiliary contact module is pushed horizontally, and the elastic bending deformation ability of the linkage member is used to make it enter the linkage slot in the contactor body 4. This assembly method is simple and quick, does not require the use of tools, saves time and effort, and is highly efficient.

[0034] Embodiment 2

[0035] Please refer to the attached Figure 6 and attachedFigure 7 , the difference between this embodiment and the first embodiment lies in the specific structure of the elastic connecting member 22. Specifically, the elastic connecting member 22 includes an intermediate platform portion 221. Both ends of the intermediate platform portion 221 are respectively connected to the bracket main body 1 through a U-shaped bending portion 222 and correspond to the groove 11. The linkage convex portion 21 is fixedly connected to the intermediate platform portion 221. Preferably, the openings of the two U-shaped bending portions 222 both face the bottom surface direction of the groove 11, and the tops of the two U-shaped bending portions 222 are slightly higher than the intermediate platform portion 221. It can be understood that in this embodiment, the elastic connecting member 22 is generally in an M shape. When the linkage member 2 is subjected to an installation pressure, the M-shaped elastic connecting member 22 can smoothly contract and deform into the groove 11 without excessive lateral skew. Compared with the elastic connecting member 22 of the first embodiment, the M-shaped elastic connecting member 22 of this embodiment has better overall stability and higher strength of its linkage convex portion 21 because both the left and right sides are connected to the bracket main body 1. The degree of deformation of the linkage convex portion 21 during the injection molding of the part is smaller, the consistency of the part is better, and the degree of deformation during use is also lower.

[0036] As mentioned above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Claims

1. A contact support, applied to the auxiliary contact module of a contactor, comprising a support body (1) and a linkage member (2) provided on the support body (1), characterized in that: A groove (11) corresponding to the linkage member (2) is provided on the bracket body (1), and the linkage member (2) is an elastically deformable structure, so that when the linkage member (2) is subjected to installation pressure, it can shrink and deform toward the inside of the groove (11).

2. The contact support according to claim 1, wherein: The linkage member (2) is configured to be connected to an actuating member inside a contactor body (4), and the linkage member (2) is an elastically deformable structure capable of bending, contracting and deforming in an installation direction.

3. The contact support according to claim 1, wherein: The groove (11) is arranged in the middle of the bracket body (1), and the linkage member (2) is connected to the bracket body (1) and is arranged corresponding to the groove (11).

4. The contact support according to any one of claims 1 to 3, characterized in that: The linkage member (2) comprises a linkage protrusion (21) and an elastic connection member (22). The linkage protrusion (21) is elastically connected to the bracket body (1) through the elastic connection member and corresponds to the groove (11). When the linkage member (2) is subjected to installation pressure, the elastic connection member (22) is bent and deformed under force, thereby driving the linkage protrusion (21) to shrink toward the inside of the groove (11) of the bracket body (1).

5. The contact bracket according to claim 4, characterized in that: One end of the elastic connecting piece (22) is connected to the bracket body (1), while the other end is suspended and corresponds to the groove (11), and the linkage protrusion (21) is arranged at the suspended end of the elastic long arm structure.

6. The contact support according to claim 5, characterized in that: The elastic connecting piece (22) is in the form of an elongated strip, one end of which is connected to the upper end of the side wall of the groove (11), and the other end is suspended in the air, and the surfaces of the elastic connecting piece (22) and the groove (11) are flush.

7. The contact support according to claim 4, characterized in that: The elastic connecting member (22) comprises an intermediate platform portion (221), the two ends of which are respectively connected to the bracket body (1) via a U-shaped bent portion (222) and correspond to the groove (11), and the linkage protrusion (21) is fixedly connected to the intermediate platform portion (221).

8. The contact support according to claim 7, wherein: The openings of the two U-shaped curved portions (222) are both oriented towards the bottom surface of the groove (11), and the tops of the two U-shaped curved portions (222) are both slightly higher than the middle platform portion (221).

9. An auxiliary contact module, characterized in that: The invention comprises a shell (3), a contact bracket movably arranged in the shell (3), and an auxiliary contact assembly installed on the contact bracket, wherein the contact bracket is a contact bracket as described in any one of claims 1 to 8, and the shell (3) is provided with a long clearance hole (31) which is arranged corresponding to the linkage part (2) and allows the linkage part (2) to be partially exposed.

10. A contactor, characterized in that: It comprises a contactor body (4) and the auxiliary contact module as claimed in claim 9, wherein a positioning protrusion (32) is provided in the middle of the lower end of the shell (3), first clips (33) are provided on both sides of the upper end, and a movable second clip (34) is provided in the middle of the upper end, and the auxiliary contact module is fixedly connected to the contactor body (4) by utilizing the positioning cooperation between the first positioning protrusion (32) and the side wall of the contactor body (4) and the clip cooperation between the first clip (33) and the second clip (34) and the side wall of the contactor body (4).

Images