Contact assembly and contactor

Abstract

The application discloses a contact assembly and a contactor, and relates to the technical field of contactors, which comprises a contact support and a contact bridge. The contact support is provided with a mounting hole, the bottom wall of the mounting hole is provided with a convex rib, the convex rib extends along the axial direction of the mounting hole, and a parting line in the mounting hole extends along the circumferential direction. The contact bridge is movably arranged in the mounting hole, and the side of the contact bridge facing the bottom wall is provided with a avoiding groove. The side of the contact bridge facing the bottom wall abuts against the convex rib, and the avoiding groove corresponds to the parting line on the convex rib. The contact assembly and the contactor provided by the application can effectively reduce the influence of the parting line burr on the contact support on the movement and adhesion of the contact bridge on the contact support, and improve the reliability of the contactor.

Description

Technical Field

[0001] This application relates to the field of contactor technology, specifically to a contact assembly and a contactor. Background Technology

[0002] The contact assembly in a contactor includes components such as a contact support, a stationary contact, and a contact bridge. The contact bridge is installed within the mounting hole of the contact support. The contact support is typically manufactured using injection molding. During the injection molding process, burrs are easily generated at the parting line location, and the parting line exists within the mounting hole of the contact support.

[0003] In existing contact support technologies, burrs on the sidewalls of the mounting hole may hinder the up-and-down movement of the contact bridge, causing jamming. Burrs on the bottom wall of the mounting hole may prevent the contact bridge from fully fitting against the bottom wall, causing the contact bridge to tilt. This will cause the contact bridge to connect and disconnect at different times with the stationary contacts at both ends of the contact bridge, affecting the accuracy of the opening distance and overtravel, and ultimately reducing the electrical performance and mechanical life of the product.

[0004] Therefore, how to design a contact assembly that can effectively reduce the impact of parting line burrs on the contact support on the movement and fit of the contact bridge on the contact support has become an urgent technical problem to be solved. Utility Model Content

[0005] The purpose of this application is to provide a contact assembly and contactor that can effectively reduce the impact of parting line burrs on the contact support on the movement and contacting of the contact bridge on the contact support, thereby improving the reliability of the contactor.

[0006] In a first aspect, embodiments of this application provide a contact assembly including a contact support and a contact bridge. The contact support has a mounting hole, and the bottom wall of the mounting hole has a protruding ridge extending axially along the mounting hole. A parting line within the mounting hole extends circumferentially. The contact bridge is movably disposed within the mounting hole, and a relief groove is provided on the side of the contact bridge facing the bottom wall. The side of the contact bridge facing the bottom wall can abut against the protruding ridge, and the relief groove corresponds to the parting line on the protruding ridge.

[0007] By providing a protruding ridge on the bottom wall of the mounting hole, the position of the contact bridge is restricted. When the contact support drives the contact bridge to break the circuit, the protruding ridge can abut against the contact bridge instead of the bottom wall, thus preventing the contact bridge from tilting relative to the bottom wall due to parting line burrs. Simultaneously, the clearance groove on the contact bridge can avoid the parting line on the protruding ridge, further reducing the impact of parting line burrs on the contact bridge. This solution effectively solves the problem of relative tilting of the contact bridge during contact support movement caused by parting line burrs on the bottom wall of the mounting hole, ensuring that the contact bridge can move smoothly with the contact support, so that the contact bridge and the stationary contacts at both ends of the contact bridge maintain synchronous connection and disconnection, improving the reliability of the contact assembly.

[0008] In some examples, the first side of the contact bridge is provided with a first groove, and the second side of the contact bridge is provided with a second groove. The first groove corresponds to the parting line on the first side wall of the mounting hole, and the second groove corresponds to the parting line on the second side wall of the mounting hole.

[0009] The first groove is designed to avoid the parting line on the first sidewall, and the second groove is designed to avoid the parting line on the second sidewall. This effectively prevents the first side of the contact bridge from interfering with the parting line burrs on the first sidewall and the second side from interfering with the parting line burrs on the second sidewall during the movement of the contact bridge in the mounting hole, thus ensuring that the contact bridge can move smoothly in the mounting hole.

[0010] In some examples, the first sidewall has a first column perpendicular to the bottom wall, and the second sidewall has a second column perpendicular to the bottom wall. The first column is slidably engaged with the first groove and is spaced apart from the bottom of the first groove. The second column is slidably engaged with the second groove and is spaced apart from the bottom of the second groove.

[0011] The sliding fit between the first post and the first groove, as well as the sliding fit between the second post and the second groove, not only limits the axial displacement of the contact bridge along the mounting hole, but also improves the accuracy of the contact bridge's movement in the direction perpendicular to the bottom wall, thus enhancing the stability of the contact bridge's movement within the mounting hole. Simultaneously, the first groove maintains a gap from the first post, and the second groove maintains a gap from the second post to avoid the parting line, further improving the stability of the contact assembly.

[0012] In some examples, the first side is provided with a first convex edge and a second convex edge at intervals, and a first groove is formed between the first convex edge and the second convex edge. The gap between the first convex edge, the second convex edge and the first sidewall is smaller than the gap between the bottom of the first groove and the first column.

[0013] The first and second convex edges replace the first side edge in rubbing against the first sidewall, reducing the contact area between the first side edge and the first sidewall of the contact bridge, thereby reducing friction and facilitating relative sliding of the contact bridge within the mounting hole. Furthermore, the first groove formed by the first and second convex edges provides a simple and high-strength structure while satisfying the sliding fit with the first column.

[0014] In some examples, a first protrusion and a second protrusion are provided on the side of the bottom wall near the first sidewall, with the first protrusion abutting against the first protrusion and the second protrusion abutting against the second protrusion.

[0015] The first and second protrusions can be correspondingly supported by the first and second protruding edges. When the contact support drives the contact bridge to break the circuit, the first protrusion, the second protrusion, and the protruding edge work together to restrict the position of the contact bridge, so as to ensure that the contact bridge remains stable when it moves with the contact support, and further improve the reliability of the contact assembly breaking.

[0016] In some examples, the second side is provided with a third convex edge and a fourth convex edge spaced apart, and a second groove is formed between the third convex edge and the fourth convex edge. The gap between the third convex edge, the fourth convex edge and the second sidewall is smaller than the gap between the bottom of the second groove and the second column.

[0017] Similar to the design of the first and second convex edges mentioned above, the third and fourth convex edges can replace the second side edge in rubbing against the second sidewall, thereby reducing the contact area between the second side edge and the second sidewall of the contact bridge, thus reducing friction and facilitating relative sliding of the contact bridge in the mounting hole. Furthermore, the second groove formed by the enclosing third and fourth convex edges satisfies the requirement for sliding cooperation with the second column while maintaining a simple structure and high structural strength.

[0018] In some examples, a third protrusion and a fourth protrusion are provided on the side of the bottom wall near the second side wall, with the third protrusion abutting against the third protrusion and the fourth protrusion abutting against the fourth protrusion.

[0019] The third and fourth protrusions are the same as the first and second protrusions. The third protrusion receives the third protruding edge, and the fourth protrusion receives the fourth protruding edge. When the contact support drives the contact bridge to break the circuit, the third protrusion, the fourth protrusion, and the protruding edge work together to restrict the position of the contact bridge, so as to ensure that the contact bridge remains stable when it moves with the contact support, and further improve the reliability of the contact assembly breaking.

[0020] In some examples, the length of the ridge is the same as the depth of the mounting hole, and the width of the ridge projected onto the bottom wall is less than the width of the clearance groove projected onto the bottom wall.

[0021] The above solution utilizes the convex ridges to support the contact bridge in the axial direction of the mounting hole, and only a small area of ​​clearance groove is needed in the middle of the contact bridge to avoid the parting line.

[0022] In some examples, an elastic element is provided in the mounting hole, a first fixing part is provided on the top wall opposite to the bottom wall in the mounting hole, and a second fixing part is provided on the side of the contact bridge away from the bottom wall. The first end of the elastic element is connected to the first fixing part, and the second end of the elastic element is connected to the second fixing part.

[0023] The elastic element provides elastic preload to the contact bridge. The elastic element is fixed between the first and second fixing parts to maintain stable installation, preventing loosening of the contact support and improving the stability of the contact assembly.

[0024] Secondly, embodiments of this application also provide a contactor, including the contact assembly described above.

[0025] The beneficial effects of the contactor provided in the second aspect and the various possible designs of the second aspect can be found in the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the contact assembly in the disconnected position provided in an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the contact assembly in the closed position provided in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the structure of the contact bridge installed in the mounting hole according to an embodiment of this application.

[0030] Figure 4 This is a first view of the contact assembly provided in an embodiment of this application.

[0031] Figure 5 Provided for the embodiments of this application Figure 4 Sectional view at point AA.

[0032] Figure 6 The first viewpoint for contact support provided in the embodiments of this application.

[0033] Figure 7 A second perspective view of contact support provided in the embodiments of this application.

[0034] Figure 8 This is a schematic diagram of the contact bridge structure provided in an embodiment of this application.

[0035] Figure 9 A second view of the contact assembly provided in the embodiments of this application.

[0036] Figure 10 Provided for the embodiments of this application Figure 9 Sectional view at point BB.

[0037] Figure 11 Provided for the embodiments of this application Figure 10 Enlarged view of point C in the middle.

[0038] Figure 12 Provided for the embodiments of this application Figure 10 Enlarged view of point D in the middle.

[0039] Explanation of reference numerals in the attached drawings: 100, contact assembly; 101, parting line; 103, elastic element; 1, contact support; 11, mounting hole; 111, bottom wall; 112, first side wall; 113, second side wall; 114, top wall; 12, protruding ridge; 13, first post; 14, second post; 15, first boss; 16, second boss; 17, third boss; 18, fourth boss; 19, first fixing part; 2, contact bridge; 21, clearance groove; 22, first side edge; 221, first groove; 222, first protruding edge; 223, second protruding edge; 23, second side edge; 231, second groove; 232, third protruding edge; 233, fourth protruding edge; 24, second fixing part. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In direct-acting AC contactors, the contact support in the contact assembly is usually manufactured by injection molding. This molding method leaves parting lines on the surface of the contact support, and defects such as burrs are prone to occur at the parting lines.

[0046] The contact bridge in the contact assembly is usually movably mounted on the contact support, and there is also a parting line at the mounting position of the contact bridge on the contact support. Burrs at the parting line will affect the movement of the contact bridge, causing the contact bridge to jam or shift, thereby affecting the normal operation of the contact assembly and causing contactor failure.

[0047] Based on this, this application provides a contact assembly that can effectively reduce the impact of parting line burrs on the contact support on the movement and fit of the contact bridge on the contact support, thereby improving the reliability of the contactor.

[0048] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0049] Figure 1 This is a schematic diagram of the contact assembly provided in the embodiment of this application in the disconnected position. Figure 2 This is a schematic diagram of the contact assembly provided in the embodiment of this application in the closed position. (In conjunction with...) Figure 1 and Figure 2 The contact assembly 100 includes a contact support 1 and a contact bridge 2. The contact support 1 is provided with a mounting hole 11, and the contact bridge 2 is movably disposed in the mounting hole 11.

[0050] Figure 3 This is a schematic diagram of the contact bridge provided in this application, installed in a mounting hole. (In conjunction with...) Figure 2 and Figure 3 The bottom wall 111 of the mounting hole 11 is provided with a protruding ridge 12, which extends axially along the mounting hole 11. The parting line 101 inside the mounting hole 11 extends circumferentially. The side of the contact bridge 2 facing the bottom wall 111 is provided with a relief groove 21. The side of the contact bridge 2 facing the bottom wall 111 abuts against the protruding ridge 12, and the relief groove 21 correspondingly avoids the parting line 101 on the protruding ridge 12.

[0051] The mounting hole 11 is a through hole. During the injection molding process, due to the parting surface of the mold, a parting line 101 will be formed in the middle of the inner wall of the mounting hole 11. This parting line 101 extends continuously along the circumference of the mounting hole 11, and the parting plane formed is perpendicular to the axis of the mounting hole 11. The burr height at the parting line 101 is usually in the range of 0.05-0.2mm. Therefore, the gap between the contact bridge 2 and the parting line 101 is greater than the height of the parting line burr to avoid the contact bridge 2 being affected by the parting line burr.

[0052] The bottom wall 111 in the mounting hole 11 is Figure 2 The inner wall of the mounting hole 11 on the lower side has a raised ridge 12 that is a strip-shaped protrusion perpendicular to the surface of the bottom wall 111. The length direction of the raised ridge 12 is the same as the axial direction of the mounting hole 11. During injection molding, a parting line 101 will also be formed on the surface of the raised ridge 12. However, due to the size limitation of the raised ridge 12, the burr influence range of the parting line 101 is greatly reduced.

[0053] The height of the protruding ridge 12 can be set in the range of 0.5-1mm, which is higher than the parting line burrs on the bottom wall 111 of the mounting hole 11. This way, when the contact bridge 2 moves towards the bottom wall 111, it will abut against the protruding ridge 12 instead of the bottom wall 111, so as to eliminate the influence of the parting line burrs on the bottom wall 111 on the contact bridge 2.

[0054] Additionally, refer to Figure 2 and Figure 3 The contact bridge 2 is a long, strip-shaped plate structure. It passes through the mounting hole 11 along its axial direction, with both ends of the contact bridge 2 located outside the mounting hole 11 and on either side of the contact support 1. The contact assembly 100 also includes two opposing stationary contacts, whose positions correspond to the positions of the two ends of the contact bridge 2. The contact bridge 2 can be moved within the mounting hole 11 until its two ends contact the two stationary contacts, thereby closing the contact assembly 100.

[0055] During its movement within the mounting hole 11, the contact bridge 2 remains parallel to the bottom wall 111 of the mounting hole 11. When the contact support 1 causes the contact bridge 2 to disconnect the circuit, the top of the protrusion 12 abuts against the side of the contact bridge 2 facing the bottom wall 111. A clearance groove 21 is provided on the side of the contact bridge 2 facing the bottom wall 111. The position of the clearance groove 21 corresponds to the position of the parting line 101 on the protrusion 12. The width of the clearance groove 21 is greater than the width of the protrusion 12 to accurately avoid the parting line 101 on the protrusion 12.

[0056] By providing a protruding ridge 12 on the bottom wall 111 of the mounting hole 11, the position of the contact bridge 2 is restricted. When the contact support 1 drives the contact bridge 2 to break the circuit, the protruding ridge 12 can replace the bottom wall 111 to abut against the contact bridge 2, thereby preventing the contact bridge 2 from tilting relative to the bottom wall 111 due to the parting line burrs on the bottom wall 111. At the same time, the avoidance groove 21 provided on the contact bridge 2 can correspondingly avoid the parting line 101 on the protruding ridge 12, further reducing the impact of the parting line burrs on the contact bridge 2. The above solution can effectively solve the problem of the contact bridge 2 tilting relatively during the movement with the contact support 1 due to the parting line burrs on the bottom wall 111 of the mounting hole 11, ensuring that the contact bridge 2 can move smoothly with the contact support 1, so that the contact bridge 2 and the stationary contacts located at both ends of the contact bridge 2 maintain synchronous connection and disconnection, improving the reliability of the contact assembly 100.

[0057] In one optional embodiment, two protruding ribs 12 may be provided, and the two protruding ribs 12 are arranged parallel to each other on the bottom wall 111. The corresponding avoidance groove 21 can be provided with only one parting line 101 that can simultaneously avoid the parting line 101 on both protruding ribs 12. Of course, two spaced-apart avoidance grooves 21 can also be provided to avoid the parting line 101 on the corresponding protruding ribs 12 respectively. This design can further improve the stability of the contact support 1 when it drives the contact bridge 2 to break with the stationary contact, avoid the contact bridge 2 from tilting, ensure that the contact bridge 2 and the stationary contacts at both ends break synchronously, and help improve the reliability of the breakage.

[0058] Furthermore, refer to Figure 2 In this embodiment, the protruding ridge 12 is located in the middle of the mounting hole 11, and the top of the protruding ridge 12 is set as a plane. This can provide stable support to the contact bridge 2 in the middle position, ensuring that the contact bridge 2 remains stable when it moves with the contact support 1, and improving the stability of the contact assembly 100.

[0059] Reference Figures 2 to 5 In some examples, the length of the protrusion 12 is the same as the depth of the mounting hole 11, and the width of the projection of the protrusion 12 onto the bottom wall 111 is less than the width of the projection of the clearance groove 21 onto the bottom wall 111.

[0060] The above scheme allows the protruding rib 12 to support the contact bridge 2 in the axial direction of the mounting hole 11, and the small-area clearance groove 21 in the middle of the contact bridge 2 can be used to avoid the parting line 101.

[0061] Specifically, the length of the protruding ridge 12 is the same as the depth of the mounting hole 11, so that the protruding ridge 12 can completely abut against the contact bridge 2 installed along the axial direction of the mounting hole 11. The parting line 101 on the protruding ridge 12 is only located at the top of the protruding ridge 12 near the center of the mounting hole 11. Thus, the clearance groove 21 only needs to be wider than the width of the protruding ridge 12, and its length only needs to be sufficient to avoid the parting line 101. It is not necessary to open a large clearance groove 21 to achieve clearance, which helps the contact bridge 2 maintain high structural strength.

[0062] Reference Figures 6 to 8 In some examples, the first side 22 of the contact bridge 2 is provided with a first groove 221, and the second side 23 of the contact bridge 2 is provided with a second groove 231. The first groove 221 is provided to avoid the parting line 101 on the first side wall 112 of the mounting hole 11, and the second groove 231 is provided to avoid the parting line 101 on the second side wall 113 of the mounting hole 11.

[0063] The first groove 221 is designed to avoid the parting line 101 on the first sidewall 112, and the second groove 231 is designed to avoid the parting line 101 on the second sidewall 113. This effectively prevents the first side 22 of the contact bridge 2 from interfering with the parting line burrs on the first sidewall 112 and the second side 23 from interfering with the parting line burrs on the second sidewall 113 during the movement of the contact bridge 2 in the mounting hole 11, thus ensuring that the contact bridge 2 can move smoothly in the mounting hole 11.

[0064] Specifically, refer to Figure 8 The first side 22 and the second side 23 of the contact bridge 2 are adjacent to both ends of a long strip-shaped plate structure. (Refer to...) Figure 6 and Figure 7 The first sidewall 112 and the second sidewall 113 of the mounting hole 11 are two opposing sidewalls, and both the first sidewall 112 and the second sidewall 113 are perpendicular to the bottom wall 111. Correspondingly, the parting line 101 on the first sidewall 112 and the parting line 101 on the second sidewall 113 are also perpendicular to the bottom wall 111.

[0065] The contact bridge 2 moves perpendicular to the bottom wall 111 within the mounting hole 11, meaning it can move along the first side wall 112 and the second side wall 113 in a direction away from or towards the bottom wall 111. During the movement of the contact bridge 2, the parting line 101 on the first side wall 112 is always within the clearance space of the first groove 221, and the parting line 101 on the second side wall 113 is always within the clearance space of the second groove 231. Furthermore, the depth of the first groove 221 and the second groove 231 is designed to be 1.2-1.5 times the height of the parting line burr. This design ensures smooth movement of the contact bridge 2 within the mounting hole 11 and also reduces the structural strength weakening caused by excessive clearance.

[0066] Reference Figures 6 to 10 In some examples, the first sidewall 112 is provided with a first column 13 perpendicular to the bottom wall 111, and the second sidewall 113 is provided with a second column 14 perpendicular to the bottom wall 111. The first column 13 is slidably engaged with the first groove 221 and the first column 13 is spaced apart from the bottom of the first groove 221. The second column 14 is slidably engaged with the second groove 231 and the second column 14 is spaced apart from the bottom of the second groove 231.

[0067] The sliding fit between the first post 13 and the first groove 221, and the sliding fit between the second post 14 and the second groove 231, not only restricts the axial displacement of the contact bridge 2 along the mounting hole 11, but also improves the accuracy of the contact bridge 2's movement in the direction perpendicular to the bottom wall 111, thus enhancing the stability of the contact bridge 2's movement within the mounting hole 11. Simultaneously, the first groove 221 maintains a distance from the first post 13, and the second groove 231 maintains a distance from the second post 14 to avoid the parting line 101, further improving the stability of the contact bridge 2's movement.

[0068] Among them, reference Figure 6 and Figure 7 The first column 13 is disposed on the first side wall 112 in a direction perpendicular to the bottom wall 111, and the parting line 101 on the first side wall 112 is located on the side of the first column 13 closer to the second side wall 113. The second column 14 is disposed on the second side wall 113 in a direction perpendicular to the bottom wall 111, and the parting line 101 on the second side wall 113 is located on the side of the second column 14 closer to the first side wall 112. Furthermore, the positions of the first column 13 and the second column 14 are opposite to each other.

[0069] Specifically, the first pillar 13 is a protruding structure perpendicular to the surface of the first sidewall 112. The length of the first pillar 13 in the direction perpendicular to the bottom wall 111 is the same as that of the first sidewall 112. The width of the first pillar 13 in the plane containing the first sidewall 112 is less than the width of the first sidewall 112. The height of the first pillar 13 protruding on the first sidewall 112 can be designed to be 0.5-1mm. Similarly, the second pillar 14 is a protruding structure perpendicular to the surface of the second sidewall. The length, width, and protrusion height of the second pillar 14 are the same as those of the first pillar 13. In addition, the first pillar 13 and the second pillar 14 can be designed as cylinders, semi-cylinders, or prisms, etc.

[0070] Accordingly, refer to Figures 8 to 10 The shape of the first groove 221 corresponds to the shape of the first pillar 13. The bottom of the first groove 221 is spaced apart from the first pillar 13. Specifically, a gap of 0.05-0.3mm is reserved between the bottom of the first groove 221 and the parting line 101 on the first pillar 13, so that the first groove 221 and the first pillar 13 can slide accurately while still avoiding the parting line 101. The fit between the second groove 231 and the second pillar 14 is similar and will not be described in detail here.

[0071] Reference Figures 8 to 11 In some examples, the first side 22 is provided with a first protruding edge 222 and a second protruding edge 223 at intervals, and a first groove 221 is formed between the first protruding edge 222 and the second protruding edge 223. The gap between the first protruding edge 222, the second protruding edge 223 and the first side wall 112 is smaller than the gap between the bottom of the first groove 221 and the first column 13.

[0072] The first protruding edge 222 and the second protruding edge 223 can replace the first side edge 22 in rubbing against the first side wall 112, thereby reducing the contact area between the first side edge 22 and the first side wall 112 of the contact bridge 2, thus reducing friction and facilitating relative sliding of the contact bridge 2 in the mounting hole 11. Furthermore, the first groove 221 formed by the first protruding edge 222 and the second protruding edge 223 satisfies the requirement of sliding fit with the first post 13 while possessing the characteristics of simple structure and high structural strength.

[0073] Specifically, refer to Figures 8 to 11 The first protruding edge 222 and the second protruding edge 223 both extend from the first side edge 22 in a direction away from the second side edge 23, that is, the first protruding edge 222 and the second protruding edge 223 are both perpendicular to the first side wall 112. The interval between the first protruding edge 222 and the second protruding edge 223 corresponds to the width of the first post 13, so as to realize the cooperation between the first groove 221 and the first post 13.

[0074] The first convex edge 222 and the second convex edge 223 have a greater convex height based on the first side edge 22 than the first column 13 has a greater convex height based on the first side wall 112. This ensures that the position of the parting line 101 on the first column 13 is spaced apart from the bottom of the first groove 221, thus avoiding the parting line 101.

[0075] Reference Figure 1 and Figure 6 In some examples, the bottom wall 111 is provided with a first protrusion 15 and a second protrusion 16 at intervals on the side near the first side wall 112, the first protruding edge 222 can abut against the first protrusion 15, and the second protruding edge 223 can abut against the second protrusion 16.

[0076] The first protrusion 15 and the second protrusion 16 can be respectively supported by the first protrusion 222 and the second protrusion 223. When the contact support 1 drives the contact bridge 2 to break the circuit, the first protrusion 15, the second protrusion 16 and the protrusion 12 work together to restrict the position of the contact bridge 2, so as to ensure that the contact bridge 2 remains stable when it moves with the contact support 1, and further improve the reliability of the contact assembly 100 breaking.

[0077] Reference Figure 6The first protrusion 15 and the second protrusion 16 are disposed on the side of the bottom wall 111 near the first side wall 112, specifically at the junction of the bottom wall 111 and the first side wall 112. The first post 13 also extends to the junction of the first side wall 112 and the bottom wall 111. The first protrusion 15 and the second protrusion 16 are disposed at intervals on both sides of the first post 13, respectively corresponding to the first protruding edge 222 and the second protruding edge 223 on both sides of the first post 13.

[0078] The first protrusion 15 and the second protrusion 16 have the same protrusion height as the bottom wall 111 and the protrusion height of the ridge 12. The contact bridge 2 is a plate-like structure. When the contact bridge 2 moves to abut against the top of the ridge 12, the first protruding edge 222 abuts against the top of the first protrusion 15 and the second protruding edge 223 abuts against the top of the second protrusion 16. This can effectively support the contact bridge 2 at multiple points, keep the contact bridge 2 stable, reduce the possibility of the contact bridge 2 shifting, and thus improve the reliability of the contact assembly 100.

[0079] Furthermore, the tops of the first protrusion 15 and the second protrusion 16 are also set as flat surfaces to provide stable support to the first protruding edge 222 and the second protruding edge 223, ensuring that they can cooperate with the protruding ridge 12 to stably support the contact bridge 2.

[0080] Reference Figures 8 to 12 In some examples, the second side 23 is provided with a third protruding edge 232 and a fourth protruding edge 233 at intervals, and a second groove 231 is formed between the third protruding edge 232 and the fourth protruding edge 233. The gap between the third protruding edge 232, the fourth protruding edge 233 and the second side wall 113 is smaller than the gap between the bottom of the second groove 231 and the second column 14.

[0081] Similar to the design of the first protruding edge 222 and the second protruding edge 223, the third protruding edge 232 and the fourth protruding edge 233 can replace the second side edge 23 in rubbing against the second side wall 113, thereby reducing the contact area between the second side edge 23 and the second side wall 113 of the contact bridge 2, thus reducing friction and facilitating relative sliding of the contact bridge 2 in the mounting hole 11. Furthermore, the second groove 231 formed by the third protruding edge 232 and the fourth protruding edge 233 provides a simple structure and high structural strength while satisfying the sliding fit with the second column 14.

[0082] Specifically, refer to Figures 8 to 12 The third protruding edge 232 and the fourth protruding edge 233 both extend from the second side 23 in a direction away from the first side 22, that is, the third protruding edge 232 and the fourth protruding edge 233 are both perpendicular to the second side wall 113. The interval between the third protruding edge 232 and the fourth protruding edge 233 corresponds to the width of the second post 14, so as to realize the cooperation between the second groove 231 and the second post 14.

[0083] Among them, the third protruding edge 232 and the fourth protruding edge 233 are raised at a greater height than the second column 14 is raised at a greater height than the second side wall 113, thereby ensuring that the position of the parting line 101 on the second column 14 is spaced apart from the bottom of the second groove 231, thus avoiding the parting line 101.

[0084] It should be noted that only two or three of the first protruding edge 222, the second protruding edge 223, the third protruding edge 232 and the fourth protruding edge 233 can be provided, and all of them can work together with the protruding ridge 12 to achieve the supporting function of the contact bridge 2.

[0085] In this embodiment, the first protruding edge 222, the second protruding edge 223, the third protruding edge 232, and the fourth protruding edge 233 are jointly provided. With the cooperation of the first protruding edge 222, the second protruding edge 223, the third protruding edge 232, and the fourth protruding edge 233, the contact area between the contact bridge 2 and the first side wall 112 and the second side wall 113 in the mounting hole 11 can be reduced, thereby reducing friction and improving the smoothness of the movement of the contact bridge 2 in the mounting hole 11.

[0086] Reference Figure 1 and Figure 7 In some examples, the bottom wall 111 is provided with a third protrusion 17 and a fourth protrusion 18 on the side near the second side wall 113, the third protrusion 232 can abut against the third protrusion 17, and the fourth protrusion 233 can abut against the fourth protrusion 18.

[0087] The third protrusion 17 and the fourth protrusion 18 are the same as the first protrusion 15 and the second protrusion 16. The third protrusion 17 receives the third protrusion 232, and the fourth protrusion 18 receives the fourth protrusion 233. When the contact support 1 drives the contact bridge 2 to break the circuit, the third protrusion 17, the fourth protrusion 18 and the protrusion 12 work together to restrict the position of the contact bridge 2, so as to ensure that the contact bridge 2 remains stable when it moves with the contact support 1, and further improve the reliability of the contact assembly 100 breaking.

[0088] Reference Figure 7 The third protrusion 17 and the fourth protrusion 18 are located on the side of the bottom wall 111 near the second side wall 113, specifically at the junction of the bottom wall 111 and the second side wall 113. The second post 14 also extends to the junction of the second side wall 113 and the bottom wall 111. The third protrusion 17 and the fourth protrusion 18 are spaced apart on both sides of the second post 14, respectively corresponding to the third protrusion 232 and the fourth protrusion 233 on both sides of the second post 14.

[0089] Among them, the third protrusion 17 and the fourth protrusion 18 have the same protrusion height as the bottom wall 111 and the protrusion height of the ridge 12. As a plate-like structure, when the contact bridge 2 moves to abut against the top of the ridge 12, the third protruding edge 232 abuts against the top of the third protrusion 17 and the fourth protruding edge 233 abuts against the top of the fourth protrusion 18. In this way, the contact bridge 2 can be effectively supported at multiple points, so that the contact bridge 2 remains stable, reduces the possibility of the contact bridge 2 shifting, and thus improves the reliability of the contact assembly 100.

[0090] Similarly, the tops of the third protrusion 17 and the fourth protrusion 18 are also set as flat surfaces to provide stable support to the third protrusion 232 and the fourth protrusion 233, ensuring that they can work together with the protrusion 12 to stably support the contact bridge 2.

[0091] It should be noted that the first boss 15, the second boss 16, the third boss 17 and the fourth boss 18 are set to correspond to the first convex edge 222, the second convex edge 223, the third convex edge 232 and the fourth convex edge 233. Only when the bosses and the convex edges correspond can they provide accurate support for the contact bridge 2.

[0092] In this embodiment, the first boss 15, the second boss 16, the third boss 17, and the fourth boss 18 are jointly arranged to form a diagonal support on the bottom wall 111. Combined with the support of the protruding ridge 12 on the middle of the contact bridge 2, a stable support can be formed on the bottom wall 111 of the mounting hole 11 for the contact bridge 2. This ensures that the contact support 1 will not tilt or skew relative to the bottom wall 111 when it moves the contact bridge 2 to disconnect the circuit. This allows the contact bridge 2 and the stationary contacts at both ends of the contact bridge 2 to disconnect synchronously, effectively improving the reliability of the contact assembly 100.

[0093] Reference Figure 1 and Figure 5 In some examples, an elastic element 103 is provided in the mounting hole 11, a first fixing part 19 is provided in the top wall 114 opposite to the bottom wall 111 in the mounting hole 11, a second fixing part 24 is provided on the side of the contact bridge 2 away from the bottom wall 111, the first end of the elastic element 103 is connected to the first fixing part 19, and the second end of the elastic element 103 is connected to the second fixing part 24.

[0094] The elastic element 103 can provide elastic preload to the contact bridge 2. The elastic element 103 can be fixed between the first fixing part 19 and the second fixing part 24 to maintain stable installation, avoid loosening on the contact support 1, and improve the stability of the contact assembly 100.

[0095] The elastic preload provided by the elastic element 103 can keep the contact bridge 2 in stable contact with the protrusion 12 when the contact assembly 100 is in the open state, and keep the contact bridge 2 in stable contact with the stationary contacts at both ends when the contact assembly 100 is in the closed state.

[0096] The first fixing part 19 is disposed on the top wall 114 of the mounting hole 11, and the top wall 114 is opposite to the bottom wall 111. Figure 3 The upper inner wall of the mounting hole 11. The first fixing part 19 can be configured as a positioning boss or a positioning groove, etc.

[0097] Reference Figure 8 The second fixing part 24 is located on the side of the contact bridge 2 away from the side where the clearance groove 21 is located. The second fixing part 24 is opposite to the position of the first fixing part 19. The second fixing part 24 can also be designed as a positioning boss or a positioning groove.

[0098] In this embodiment, refer to Figure 5 The elastic element 103 is configured as a compression spring, the first fixing part 19 is configured as a positioning boss, and the second fixing part 24 is also configured as a positioning boss. The first end of the elastic element 103 can be sleeved on the first fixing part 19, and the second end of the elastic element 103 can be sleeved on the second fixing part 24. This design structure is simple, easy to assemble, and has high stability.

[0099] In addition, the position of the second fixing part 24 corresponds to the position of the relief groove 21. The positioning boss of the second fixing part 24 can be formed by stamping the relief groove 21, which effectively simplifies the processing of the contact bridge 2 and helps the contact bridge 2 maintain stable structural strength.

[0100] This application also provides a contactor including the contact assembly 100 described above. By adjusting the assembly structure between the contact support 1 and the contact bridge 2 in the contact assembly 100, the contact bridge 2 is less susceptible to the influence of burrs present at the parting line 101 in the mounting hole 11 of the contact support 1. This ensures that during the opening and closing process of the contactor, the contact bridge 2 can move smoothly within the mounting hole 11 and can maintain synchronous connection and disconnection with the stationary contacts located at both ends of the contact bridge, effectively improving the reliability of the contactor.

[0101] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A contact assembly, characterized in that, include: The contact support is provided with a mounting hole, the bottom wall of which is provided with a protruding ridge, the protruding ridge extending along the axial direction of the mounting hole, and the parting line in the mounting hole extending circumferentially. The contact bridge is movably disposed within the mounting hole, and the side of the contact bridge facing the bottom wall is provided with a clearance groove; The side of the contact bridge facing the bottom wall can abut against the protruding ridge, and the relief groove corresponds to the parting line on the protruding ridge.

2. The contact assembly according to claim 1, characterized in that, The first side of the contact bridge is provided with a first groove, and the second side of the contact bridge is provided with a second groove. The first groove avoids the parting line on the first side wall of the mounting hole, and the second groove avoids the parting line on the second side wall of the mounting hole.

3. The contact assembly according to claim 2, characterized in that, The first sidewall is provided with a first column perpendicular to the bottom wall, and the second sidewall is provided with a second column perpendicular to the bottom wall. The first column is slidably engaged with the first groove and is spaced apart from the bottom of the first groove. The second column is slidably engaged with the second groove and is spaced apart from the bottom of the second groove.

4. The contact assembly according to claim 3, characterized in that, The first side has a first convex edge and a second convex edge spaced apart, and the first groove is formed between the first convex edge and the second convex edge. The gap between the first convex edge, the second convex edge and the first sidewall is smaller than the gap between the bottom of the first groove and the first column.

5. The contact assembly according to claim 3, characterized in that, The second side is provided with a third convex edge and a fourth convex edge at intervals, and the second groove is formed between the third convex edge and the fourth convex edge. The gap between the third convex edge, the fourth convex edge and the second sidewall is smaller than the gap between the bottom of the second groove and the second column.

6. The contact assembly according to claim 4, characterized in that, The bottom wall is provided with a first protrusion and a second protrusion on the side closest to the first side wall. The first protrusion can abut against the first protrusion, and the second protrusion can abut against the second protrusion.

7. The contact assembly according to claim 5, characterized in that, The bottom wall is provided with a third protrusion and a fourth protrusion on the side near the second side wall. The third protrusion can abut against the third protrusion, and the fourth protrusion can abut against the fourth protrusion.

8. The contact assembly according to any one of claims 1-7, characterized in that, The length of the protruding ridge is the same as the depth of the mounting hole, and the width of the projection of the protruding ridge onto the bottom wall is less than the width of the projection of the clearance groove onto the bottom wall.

9. The contact assembly according to any one of claims 1-7, characterized in that, An elastic element is provided in the mounting hole, and a first fixing part is provided on the top wall opposite to the bottom wall in the mounting hole. A second fixing part is provided on the side of the contact bridge away from the bottom wall. The first end of the elastic element is connected to the first fixing part, and the second end of the elastic element is connected to the second fixing part.

10. A contactor, characterized in that, Includes the contact assembly as described in any one of claims 1-9.

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