Single-side outgoing line contact structure

Abstract

The invention relates to the technical field of electrical equipment, and discloses a single-side outgoing line contact structure, which comprises a static contact piece and a moving contact piece, the static contact piece comprises a first supporting part, a plurality of groups of static contact units are fixed on one side of the static contact piece, each group comprises two static contacts, the moving contact piece comprises a second supporting part, and the moving contact piece is opened along the length direction to form a gap for inserting the static contacts. A plurality of groups of moving contact units are installed inside the moving contact, each group of moving contact units comprises two moving contact conducting bars and two symmetrically arranged moving contact supporting elastic sheets, the tops of the elastic sheets are linked with contacts, the two elastic sheets are located between the two conducting bars, contact pressure springs are linked between the opposite sides of the conducting bars and supporting parts, and the springs directly act on the contact occlusion positions. Contact resistance is reduced, and conductive reliability is improved; through the arrangement of the static contact, the moving contact, the conducting bar, the pressure spring and the supporting elastic piece, relative rolling of the moving contact is achieved in the movement process, abrasion is reduced, the driving torque is reduced, the width of the static contact is effectively reduced, and then the length size of the overall structure is reduced.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a single-sided outgoing contact structure. Background Technology

[0002] In electrical equipment, the contact structure is a key component for circuit switching, and its performance directly affects the reliability, safety, and service life of the equipment. However, traditional contact structures often face problems such as rapid contact wear and high driving torque in practical applications. This not only reduces the service life of the contacts but also increases operating energy consumption. Furthermore, conventional contacts typically have a single-wire structure arranged laterally with limited contact wire length. To ensure the necessary current-carrying capacity, the width of the stationary contact often needs to be increased, resulting in a larger overall structural length, which is detrimental to the miniaturization design of equipment. In addition, traditional contact structures lack adaptability and flexibility, making it difficult to easily adjust them according to different current magnitudes and other operating conditions, thus limiting their applicability. Therefore, developing a contact structure that can reduce contact wear, lower driving torque, reduce structural size, and possess flexible adjustment capabilities is of significant practical importance. Summary of the Invention

[0003] This invention proposes a single-sided lead-out contact structure to solve the problems of high wear and short service life of existing devices.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a single-sided lead-out contact structure, comprising a detachably connected stationary contact and a moving contact, wherein the stationary contact includes a first support portion, and a plurality of sets of stationary contact units are fixedly connected to one side of the first support portion, and each set of stationary contact units includes two stationary contacts; The moving contact includes a second support portion, which is open along its length to form a gap for the insertion of the stationary contact. Multiple sets of moving contact units are installed inside the second support portion. Each set of moving contact units includes two moving contact conductive bars and two moving contact support springs symmetrically arranged along the length of the second support portion. A moving contact is fixedly connected to the top of each moving contact support spring. The two moving contact support springs are located between the two moving contact conductive bars. Moving contact pressure springs are fixedly connected between the opposite sides of the two moving contact conductive bars and the interior of the second support portion. The moving contact pressure springs act directly on the moving contact engagement position, reducing contact resistance and improving conductivity reliability. After the stationary contact slides through the gap, it simultaneously contacts the moving contacts on the two moving contact conductive bars and the two moving contact support springs.

[0005] Preferably, a moving contact conductive busbar support plate is fixedly connected between the two moving contact support springs, and the top of the moving contact conductive busbar support plate is recessed to form a groove with the stationary contact.

[0006] Preferably, the first support portion includes a stationary contact insulating seat, one side of which is open to form a plurality of stationary contact mounting slots, each of which is matched with a stationary contact, and a stationary contact fixing bolt is screwed between the stationary contact mounting slot and the stationary contact.

[0007] Preferably, the second support portion includes two symmetrically arranged moving contact mounting brackets, with a locking bolt screwed between the two moving contact mounting brackets, and a mounting cavity for mounting the moving contact unit is formed between the interiors of the two moving contact mounting brackets. The gap is formed between the tops of the two moving contact mounting brackets and communicates with the mounting cavity.

[0008] Preferably, a positioning protrusion and a positioning groove are formed on opposite sides of the two moving contact mounting brackets, and the positioning protrusion and positioning groove are matched.

[0009] Preferably, the moving contact mounting bracket has a spring mounting groove, a moving contact conductive busbar mounting groove, and a moving contact support spring mounting groove inside. The moving contact pressure spring matches the spring mounting groove, the moving contact conductive busbar matches the moving contact conductive busbar mounting groove, and the moving contact support spring matches the moving contact support spring mounting groove.

[0010] Preferably, the bottom of the stationary contact insulating base protrudes outward to form a limiting frame, and a slot matching the limiting frame is formed on one side of the moving contact mounting bracket.

[0011] The technical effects and advantages provided by the present invention in the above technical solution are as follows: (1) This application enables the moving contact to roll relative to each other during the movement by setting up a stationary contact, a moving contact conductive bus, a moving contact pressure spring and a moving contact support spring, so as to achieve the goal of reducing contact wear and reducing driving torque. Furthermore, the contact lines of the stationary contact and the moving contact are longitudinal and perpendicular to the direction of movement, and multiple contact lines are arranged in parallel. Compared with the conventional transverse arrangement of a single contact line, a single longitudinal contact line is longer. The longitudinal contact line structure can effectively reduce the width of the stationary contact, thereby reducing the overall length of the structure. (2) By setting up a stationary contact mounting groove, a stationary contact fixing bolt and a moving contact support spring mounting groove, this application enables the device to adjust the number of moving contacts in parallel and the width of stationary contacts according to the current magnitude, thereby flexibly adjusting for different usage conditions and expanding the application range of the device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is one of the perspective views of the present invention; Figure 2 This is a second perspective view of the present invention; Figure 3 This is a front view of the present invention; Figure 4 This is one of the perspective views of the static contact element of the present invention; Figure 5 This is a second perspective view of the static contact element of the present invention; Figure 6 This is a perspective view of the moving contact element of the present invention; Figure 7 This is a perspective view of the moving contact unit of the present invention; In the diagram: 1. Stationary contact; 2. Moving contact; 3. Moving contact conductor bar; 4. Moving contact pressure spring; 5. Stationary contact fixing bolt; 6. Moving contact support spring; 7. Moving contact conductor bar support plate; 8. Stationary contact insulating base; 9. Moving contact mounting bracket; 10. Locking bolt; 11. Positioning protrusion; 12. Spring mounting slot; 13. Moving contact conductor bar mounting slot; 14. Positioning groove; 15. Limiting bracket; 16. Stationary contact mounting slot; 17. Moving contact support spring mounting slot. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] like Figures 1-7 As shown, the present invention provides a single-sided outgoing contact structure, which is mainly composed of two parts: a detachably connected stationary contact and a moving contact. It aims to provide an electrical connection solution that is reliable in contact, stable in structure, and easy to assemble and maintain. The stationary contact includes a first supporting portion, which is specifically embodied in the stationary contact insulating base 8, such as... Figures 1 to 5As shown, the stationary contact insulation base 8 not only provides insulation support, but also has multiple stationary contact mounting slots 16 formed on one side. Multiple sets of stationary contact units are fixedly connected to one side of the stationary contact insulation base 8. Each set of stationary contact units clearly includes two stationary contacts 1. The number of these stationary contact mounting slots 16 corresponds one-to-one with the number of sets of stationary contacts 1, ensuring that each set of stationary contact units can be accurately positioned. To achieve stable installation of the stationary contacts 1, the stationary contact mounting slots 16 and the stationary contacts 1 are fastened by stationary contact fixing bolts 5 that are screwed together. This connection method not only ensures the reliability of the connection, but also facilitates subsequent maintenance and replacement.

[0016] The moving contact, serving as the current output or switching terminal, has a relatively complex structure to accommodate dynamic contact with the stationary contact 1. The second support portion of the moving contact consists of two symmetrically arranged moving contact mounting brackets 9, such as... Figures 1 to 3 , Figure 6 and Figure 7 As shown, the two moving contact mounting brackets 9 are fastened by locking bolts 10 that are screwed together. They together form a mounting cavity for mounting the moving contact unit. In order to ensure that the two moving contact mounting brackets 9 can be quickly and accurately aligned during assembly, matching positioning protrusions 11 and positioning grooves 14 are formed on their opposite sides. The positioning protrusions 11 can be accurately embedded in the positioning grooves 14, effectively avoiding installation deviation. A gap is naturally formed between the tops of the two moving contact mounting brackets 9. This gap is connected to the internal mounting cavity and its main function is to allow the stationary contact 1 to be inserted or withdrawn during operation.

[0017] Within the mounting cavity of the moving contact, multiple sets of moving contact units corresponding to the stationary contact units are installed. Each set of moving contact units includes two moving contact conductive bars 3 and two moving contact support springs 6. The moving contact support springs 6 are symmetrically arranged along the length of the second support portion (i.e., the moving contact mounting bracket 9), and moving contacts 2 are fixedly connected to their tops. These two moving contacts 2 correspond to the two stationary contacts 1 in the stationary contact unit. The two moving contact support springs 6 are arranged between the two moving contact conductive bars 3. Furthermore, on the opposite side of the two moving contact conductive bars 3, the moving contact support springs 6 are connected to the moving contact unit. Between the inner walls of the contact mounting bracket 9, there are fixedly connected moving contact pressure springs 4. The moving contact pressure springs 4 act directly on the meshing position of the moving contact 2, which can reduce the contact resistance and improve the conductivity reliability. Therefore, when the stationary contact 1 slides through the above gap, it will simultaneously make close contact with the two moving contact conductive bars 3 and the moving contact 2 on the two moving contact support springs 6. The moving contact pressure springs 4 provide continuous pressure in this process to ensure the contact pressure between the stationary contact 1 and the moving contact 2 and the moving contact conductive bars 3, thereby ensuring good conductivity.

[0018] To effectively support the moving contact conductive busbar 3 and prevent excessive deformation or displacement under pressure, this invention includes a moving contact conductive busbar support piece 7 fixedly connected between the two moving contact support springs 6, such as... Figure 7 As shown, the top of the moving contact conductive busbar support plate 7 is designed with an inward structure, forming a groove that matches the contour of the stationary contact 1. This groove not only guides the insertion of the stationary contact 1, but more importantly, when the moving contact 2 moves to the position where it is separated from the stationary contact 1, the moving contact conductive busbar support plate 7 can lift and support the moving contact conductive busbar 3, preventing the moving contact 2 from being squeezed downward by the weight of the moving contact conductive busbar 3 or other factors. This prevents the moving contact 2 from being stuck and unable to roll smoothly to the next set of stationary contacts 1, ensuring the smoothness and reliability of the entire contact structure operation.

[0019] To ensure precise positioning and stable installation of each component of the moving contact unit within the moving contact mounting bracket 9, the moving contact mounting bracket 9 contains corresponding spring mounting grooves 12, moving contact conductive busbar mounting grooves 13, and moving contact support spring mounting grooves 17. Figure 6 and Figure 7 As shown. Among them, the moving contact pressure spring 4 is matched with the spring mounting groove 12, the moving contact conductive bus 3 is matched with the moving contact conductive bus mounting groove 13, and the moving contact support spring 6 is matched with the moving contact support spring mounting groove 17.

[0020] Furthermore, in order to ensure that the stationary contact and the moving contact maintain a stable relative position during operation and avoid unnecessary shaking or misalignment, the present invention forms a limiting frame 15 protruding outward from the bottom of the stationary contact insulating base 8, such as... Figures 1 to 3 As shown, a slot matching the limiting frame 15 is formed on one side of the moving contact mounting bracket 9. When the stationary contact and the moving contact are assembled or working, the limiting frame 15 can be inserted into the slot, thereby effectively limiting the relative position of the two and further improving the working stability and safety of the entire contact structure.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A single-sided lead-out contact structure, characterized in that: It includes a detachably connected stationary contact and a moving contact. The stationary contact includes a first support portion, and multiple sets of stationary contact units are fixedly connected to one side of the first support portion. Each set of stationary contact units includes two stationary contacts (1). The moving contact includes a second support portion, which is open along its length to form a gap for the insertion of the stationary contact (1). Multiple sets of moving contact units are installed inside the second support portion. Each set of moving contact units includes two moving contact conductive bars (3) and two moving contact support springs (6) symmetrically arranged along the length of the second support portion. A moving contact (2) is fixedly connected to the top of the moving contact support spring (6). The two moving contact support springs (6) are located between the two moving contact conductive bars (3). Moving contact pressure springs (4) are fixedly connected between the opposite sides of the two moving contact conductive bars (3) and the interior of the second support portion. After the stationary contact (1) slides through the gap, it simultaneously contacts the moving contacts (2) on the two moving contact conductive bars (3) and the two moving contact support springs (6).

2. The single-sided lead-out contact structure according to claim 1, characterized in that: A moving contact conductive busbar support plate (7) is fixedly connected between the two moving contact support springs (6), and the top of the moving contact conductive busbar support plate (7) is recessed to form a groove with the stationary contact (1).

3. A single-sided lead-out contact structure according to claim 1 or 2, characterized in that: The first support part includes a stationary contact insulation seat (8), one side of which is open to form a plurality of stationary contact mounting slots (16). The stationary contact mounting slots (16) are matched one by one with the stationary contacts (1), and a stationary contact fixing bolt (5) is screwed between the stationary contact mounting slots (16) and the stationary contacts (1).

4. The single-sided lead-out contact structure according to claim 3, characterized in that: The second support portion includes two symmetrically arranged moving contact mounting brackets (9), and a locking bolt (10) is screwed between the two moving contact mounting brackets (9). An installation cavity for mounting the moving contact unit is formed between the interiors of the two moving contact mounting brackets (9). The gap is formed between the tops of the two moving contact mounting brackets (9) and the gap communicates with the installation cavity.

5. A single-sided lead-out contact structure according to claim 4, characterized in that: The two moving contact mounting brackets (9) each have a positioning protrusion (11) and a positioning groove (14) on opposite sides, and the positioning protrusion (11) and the positioning groove (14) are matched.

6. A single-sided lead-out contact structure according to claim 4, characterized in that: The moving contact mounting bracket (9) has a spring mounting groove (12), a moving contact conductive bus mounting groove (13), and a moving contact support spring mounting groove (17) inside. The moving contact pressure spring (4) matches the spring mounting groove (12), the moving contact conductive bus (3) matches the moving contact conductive bus mounting groove (13), and the moving contact support spring (6) matches the moving contact support spring mounting groove (17).

7. A single-sided lead-out contact structure according to claim 4, characterized in that: The bottom of the stationary contact insulating base (8) protrudes outward to form a limiting frame (15), and a slot matching the limiting frame (15) is formed on one side of the moving contact mounting bracket (9).

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