Contact terminal structure and relay

Abstract

The utility model relates to relay technology field provides a kind of contact terminal structure and relay, contact terminal structure includes contact head and is set on the top of the lock of contact head portion;The end surface of lock portion is provided with the threaded hole that leads to the inside of contact head;Lock portion includes the first annular portion, annular groove and second annular portion sequentially arranged from top to bottom, and torque structure is arranged in annular groove;The diameter of second annular portion is less than or equal to the diameter of first annular portion.Lock portion is arranged with torque structure in annular groove, can increase the contact area of lock portion and outer cover, and enhance friction, so that the adhesive connection between lock portion and outer cover is more closely stable, improve its anti-torque capacity, prevent the loosening of adhesive between lock portion and outer cover due to external factors, unnecessary displacement or rotation of contact terminal structure, to improve the structural stability and use safety of relay.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a contact terminal structure and a relay. Background Technology

[0002] Contact terminals are one of the core components of a relay. They are used to connect to external circuits and achieve electrical switching functions through the contact of their contacts.

[0003] In existing relay designs, the contact terminal structure and the relay cover are usually connected by adhesive bonding. However, the relatively smooth surface of the contact terminal structure makes it less resistant to torque when bonded to the cover. Under the action of external forces (such as torque, vibration or temperature changes), the contact terminal is prone to slippage or rotation, which may lead to poor contact and unstable operation of the contact terminal, thereby reducing the overall stability of the relay or even damaging the electrical performance of the relay. Utility Model Content

[0004] The purpose of this invention is to provide a contact terminal structure and a relay, which aims to improve the problem of poor torque resistance of existing relay contact terminal structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A contact terminal structure includes a contact head and a locking portion disposed on the top of the contact head;

[0007] The end face of the locking part is provided with a threaded hole that leads to the contact head;

[0008] The locking part includes a first annular part, an annular groove, and a second annular part arranged sequentially from top to bottom. A torque structure is provided in the annular groove. The diameter of the second annular part is less than or equal to the diameter of the first annular part.

[0009] Preferably, the torque structure is a quadrilateral, hexagonal, or octagonal structure.

[0010] Preferably, the torque structure is provided with a multi-layered polygonal structure, and the edges of adjacent polygonal structures are staggered.

[0011] Preferably, the torque structure is provided with multiple layers of polygonal structures, with gap grooves provided between adjacent polygonal structures, and the corners of the multiple polygonal structures are aligned.

[0012] Preferably, the torque structure is a spur gear-shaped structure, and at least one spur gear-shaped structure is provided.

[0013] Preferably, the torque structure is a helical gear-shaped structure, and at least one helical gear-shaped structure is provided.

[0014] Preferably, multiple helical gear-shaped structures are stacked, and the helical teeth of adjacent helical gear-shaped structures have different inclination directions.

[0015] A relay is also provided, including the contact terminal structure described above.

[0016] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] 1. In this utility model, a torque structure is provided in the annular groove of the locking part, which can increase the contact area between the locking part and the outer cover and enhance the friction, making the adhesive connection between the locking part and the outer cover tighter and more stable, improving its torque resistance, preventing the adhesive between the locking part and the outer cover from loosening due to external factors, and preventing unnecessary displacement or rotation of the contact terminal structure, thereby improving the structural stability and safety of the relay. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first embodiment of the contact terminal structure described in this utility model;

[0019] Figure 2 This is a schematic diagram of the second embodiment of the contact terminal structure described in this utility model;

[0020] Figure 3 This is a schematic diagram of the third embodiment of the contact terminal structure described in this utility model;

[0021] Figure 4 This is a schematic diagram of the fourth embodiment of the contact terminal structure described in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the relay described in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Contact terminal structure;

[0025] 10. Contact head; 11. Locking part; 110. Threaded hole; 111. First annular part;

[0026] 112. Second annular portion; 113. Torque structure; 114. Gap groove;

[0027] 2. Outer cover. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0031] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Example 1

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment provides a contact terminal structure, including a contact head 10 and a locking portion 11 disposed on the top of the contact head 10; the end face of the locking portion 11 is provided with a threaded hole 110 that leads to the contact head 10; the locking portion 11 includes a first annular portion 111, an annular groove (not shown in the figure) and a second annular portion 112 arranged sequentially from top to bottom, and a torque structure 113 is disposed in the annular groove; the diameter of the second annular portion 112 is less than or equal to the diameter of the first annular portion 111.

[0034] Specifically, the contact terminal structure 1 is firmly fixed by adhesively connecting the locking part 11 to the outer cover 2 of the relay. The threaded hole 110 on the end face of the locking part 11 is used to connect to the external circuit. The torque structure 113 provided in the annular groove of the locking part 11 can increase the contact area between the locking part 11 and the outer cover 2 and enhance the friction, making the adhesive connection between the locking part 11 and the outer cover 2 tighter and more stable, improving its torque resistance, and preventing the adhesive between the locking part 11 and the outer cover 2 from loosening due to external factors, thus preventing unnecessary displacement or rotation of the contact terminal structure, thereby improving the structural stability and safety of the relay.

[0035] Furthermore, in a preferred embodiment, the diameter of the second annular portion 112 is smaller than the diameter of the first annular portion 111. The difference in diameter between the first annular portion 111 and the second annular portion 112 can effectively improve the assembly accuracy of the contact terminal structure and the outer cover 2, ensuring a tight fit and improving overall stability. The larger diameter of the first annular portion 111 can disperse stress when the contact terminal structure is subjected to torque, while the relatively smaller second annular portion 112 can effectively control the torque transmission path, preventing loosening of the connection between the contact terminal structure and the outer cover 2, and avoiding displacement or rotation.

[0036] like Figure 1 As shown, in this embodiment, the torque structure 113 is a quadrilateral, hexagonal, or octagonal structure. The torque structure 113 has multiple layers of polygonal structures, with the edges of adjacent polygonal structures staggered.

[0037] Specifically, the multi-layered polygonal structure design not only increases the complexity and friction of the contact surface, but also enhances the overall strength of the torque structure 113, effectively preventing the contact terminal structure from loosening due to external forces. The multi-layered structure can also distribute external forces step by step, ensuring a stable connection and improving the overall reliability of the relay. Furthermore, the interlocking edges of adjacent polygons can form an interlocking effect, further enhancing the anti-torsional performance.

[0038] like Figure 4 As shown, in an alternative embodiment, the torque structure 113 is provided with a multi-layered polygonal structure, with gap grooves 114 provided between adjacent polygonal structures, and the edges of the multi-layered polygonal structures are aligned. Specifically, the multi-layered polygonal structures are equidistant, and the spacing between adjacent polygonal structures forms the gap grooves 114. The design of the gap grooves 114 helps to enhance the adhesive strength between the locking part 11 and the outer cover 2 of the relay. The adhesive can not only adhere to the surface of the locking part 11, but also penetrate into the gap grooves 114, providing more contact area, thereby improving the overall stability of the structure.

[0039] like Figure 2As shown, in an alternative embodiment, the torque structure 113 is a spur gear-shaped structure, and at least one spur gear-shaped structure is provided. The spur gear-shaped structure forms an interlocking action with the adhesive on the inner wall of the outer cover 2 through its teeth, thereby enhancing the connection stability between the locking part 11 and the outer cover 2 and preventing loosening or displacement caused by external forces.

[0040] like Figure 3 As shown, in an alternative embodiment, the torque structure 113 is a helical gear-shaped structure, and at least one helical gear-shaped structure is provided. The teeth of the helical gear-shaped structure form an oblique engagement with the adhesive on the inner wall of the outer cover 2, further increasing the friction and torque resistance, effectively preventing loosening, and ensuring a more stable and reliable connection.

[0041] Preferably, multiple helical gear-shaped structures are stacked, and the helical teeth of adjacent helical gear-shaped structures have different inclination directions. The design of the stacked helical gear-shaped structures not only improves the overall torsional resistance, but also forms a multiple meshing effect through the interaction of helical teeth with different inclination directions, further enhancing the connection stability between the locking part 11 and the outer cover 2.

[0042] Example 2

[0043] like Figure 5 As shown, a relay is also provided, including the contact terminal structure 1 described in Embodiment 1. By optimizing the structure of the contact terminal structure 1, its torque resistance is enhanced, and the reliability of its connection with the outer cover 2 of the relay is improved, thereby ensuring stable operation of the relay and extending its service life.

[0044] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A contact terminal structure, characterized in that, Includes a contact head and a locking part disposed on the top of the contact head; The end face of the locking part is provided with a threaded hole that leads to the contact head; The locking part includes a first annular part, an annular groove, and a second annular part arranged sequentially from top to bottom. At least one torque structure is provided in the annular groove. The diameter of the second annular part is less than or equal to the diameter of the first annular part. The torque structure is a quadrilateral, hexagonal, or octagonal structure; the torque structure has multiple layers of polygonal structures, and the edges of adjacent polygonal structures are staggered.

2. The contact terminal structure according to claim 1, characterized in that: The torque structure is provided with multiple layers of polygonal structures, with gaps between adjacent polygonal structures, and the edges of the multiple polygonal structures are aligned.

3. The contact terminal structure according to claim 1, characterized in that: The torque structure is a spur gear-shaped structure, and at least one spur gear-shaped structure is provided.

4. The contact terminal structure according to claim 1, characterized in that: The torque structure is a helical gear-shaped structure, and at least one helical gear-shaped structure is provided.

5. The contact terminal structure according to claim 4, characterized in that: Multiple helical gear-shaped structures are stacked together, and the helical teeth of adjacent helical gear-shaped structures have different inclination directions.

6. A relay, characterized in that, Includes the contact terminal structure as described in any one of claims 1-5.

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