A high-stability relay socket

Abstract

This application discloses a highly stable relay socket, including a socket housing and an outer cover plate that snaps into it. The socket housing has multiple through holes and multiple rows of contact points, with the contact points in the same row arranged at intervals. The socket housing and the outer cover plate snap together to form a receiving cavity. The receiving cavity is provided with multiple transverse reinforcing ribs. On both sides of the transverse reinforcing ribs are placement slots for connecting the holes and contact points. An inner cover plate is provided in the receiving cavity, which divides the placement slots into two independent spaces. Multiple terminals are provided on both sides of the inner cover plate. The terminals on both sides of the inner cover plate are inserted into the placement slots one by one, with one side of the inner cover plate abutting against the terminals and the other side of the inner cover plate providing support for the terminals. Through the bidirectional limiting and support of the terminals on both sides by the inner cover plate, combined with the forced separation by the spacer strip, even if the reinforcing ribs of the housing are damaged, short circuit problems caused by contact between the two layers of terminals or conductivity of the medium can still be effectively prevented.

Description

Technical Field

[0001] This application relates to the technical field of relay sockets, and in particular to a highly stable relay socket. Background Technology

[0002] Relay sockets are a crucial component of power systems and electronic equipment, playing an irreplaceable role in electrical connection and control.

[0003] For example, the relay socket with the authorization publication number CN220710688U for preventing assembly deformation generally consists of a socket housing and a cover plate. The socket housing has multiple holes for the relay leads to be inserted. Each hole is equipped with a spring clip to clamp the lead. The spring clip is integrally formed and connected to one end of the terminal block. The other end of the terminal block is connected to the wire via a wiring screw. In addition to the holes, the top of the socket housing also has a grounding point above the terminal block so that the wiring screw can pass through and be threaded to the terminal block. The cover plate is connected to the bottom of the socket housing. Together, they form a cavity to accommodate the spring clip and the terminal block. During installation, the spring clip, the terminal block, and the wiring screw are first inserted into the socket housing, and then the socket housing is inverted and the cover plate is installed.

[0004] Furthermore, the wiring terminals inside the socket housing are usually divided into two layers. The upper layer of wiring terminals has a shorter length in the height direction when connected to the spring clip, while the lower layer of wiring terminals has a longer length in the height direction when connected to the spring clip. The traditional approach is to use a cover plate to provide some support for the two layers of wiring terminals. However, the two layers of wiring terminals are not separated and are only supported by the cover plate. When the reinforcing ribs inside the socket housing are damaged, the two layers of wiring terminals may become electrically connected. Since the two layers of wiring terminals are connected to different circuits, this leads to a risk of short circuit in the relay socket. Summary of the Invention

[0005] To ensure stability between the two layers of terminals inside the socket housing, a highly stable relay socket is provided.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A highly stable relay socket includes a socket housing and an outer cover plate that snaps into it. The outer surface of the socket housing has multiple through-holes and multiple rows of contact points, with each row of contact points spaced apart individually. The socket housing and the outer cover plate snap together to form a receiving cavity. The receiving cavity has multiple transverse reinforcing ribs, and on both sides of the transverse reinforcing ribs are placement slots for connecting the through-holes and contact points. An inner cover plate is provided within the receiving cavity, dividing the placement slots into two independent spaces. Multiple terminals are provided on both sides of the inner cover plate. The terminals on both sides of the inner cover plate are inserted one by one into the placement slots of the two independent spaces, with the side of the inner cover plate facing away from the outer cover plate abutting against the terminals, and the side of the inner cover plate facing the outer cover plate providing support for the terminals.

[0008] By adopting the above technical solution, the inner cover plate forms a differentiated limiting and supporting effect on the terminals on both sides through its body structure. The side facing away from the outer cover plate achieves axial limiting by abutting the terminals, effectively suppressing the axial displacement of the terminals caused by vibration or external force. The side facing the outer cover plate provides lateral bending resistance to the terminals through planar support, preventing the electrical clearance from shrinking due to pressure deformation. This synergistic design of bidirectional limiting and support makes the two layers of terminals physically isolated in space. Even if the reinforcing ribs of the socket housing are partially damaged, the risk of short circuit caused by direct contact or dielectric conductivity between the upper and lower layers of terminals can still be avoided.

[0009] Preferably, the inner cover plate has a guide groove along its own installation direction, and the socket housing is provided with a transverse reinforcing rib, and the guide groove and the transverse reinforcing rib are interlocked.

[0010] By adopting the above technical solution, a guide groove is opened on the inner cover plate and inserted into the transverse reinforcing rib inside the socket housing, so that the inner cover plate has a clear guide during the installation process, which facilitates accurate installation into the socket housing, improves the installation accuracy and efficiency of the inner cover plate, and helps to ensure the relative position accuracy of each component of the relay socket and improve the overall stability of the relay socket.

[0011] Preferably, the inner cover plate has multiple inserts fixed on the side facing the outer cover plate, and the transverse reinforcing rib has slots for the inserts to be inserted and mated.

[0012] By adopting the above technical solution, the insert and the slot on the transverse reinforcing rib form a plug-in fit, realizing the mechanical locking connection between the spacer and the socket housing. This allows the transverse reinforcing rib to provide bidirectional support for the spacer. In the direction perpendicular to the spacer, regardless of whether the spacer is subjected to compressive or tensile force, the transverse reinforcing rib can bear part of the load through the limiting fit between the slot and the insert, significantly improving the spacer's resistance to bending and displacement. At the same time, the tight fit between the insert and the slot can effectively suppress the risk of loosening of the spacer under long-term vibration or impact conditions, ensuring that the safe distance between adjacent terminals remains stable, thereby avoiding short circuit problems in the terminals caused by deformation or displacement of the spacer.

[0013] Preferably, the inner cover plate has spacer strips spaced apart on the side facing the outer cover plate. The spacer strips are parallel to the transverse reinforcing ribs and are located between adjacent terminals.

[0014] By adopting the above technical solution, the spacer strips arranged on the side of the inner cover plate facing the outer cover plate can physically isolate adjacent terminals, effectively increasing the distance between adjacent terminals and avoiding the risk of short circuits caused by direct contact of terminals or conductivity of the medium due to vibration, deformation or damage to the reinforcing ribs. This ensures that the terminals maintain a safe distance during long-term use and enhances the insulation reliability and structural stability of the relay socket.

[0015] Preferably, the socket housing is provided with a longitudinal reinforcing rib perpendicular to the spacer strip, and the longitudinal reinforcing rib is provided with a limiting step for the spacer strip to engage.

[0016] By adopting the above technical solution, the longitudinal reinforcing ribs inside the socket housing are perpendicular to the spacer strip and form a snap-fit ​​with the spacer strip through the limiting step, realizing the bidirectional limiting of the spacer strip in the longitudinal direction. The limiting step, through interference fit or shape adaptation design, firmly snaps the spacer strip in the preset position, effectively suppressing the risk of displacement or dislodgement of the spacer strip along the longitudinal reinforcing rib direction. At the same time, the longitudinal reinforcing ribs and the transverse reinforcing ribs form a spatial cross-shaped support structure, which together with the inner cover plate constitutes a three-dimensional fixing system, significantly improving the vibration resistance of the spacer strip and adjacent terminals.

[0017] Preferably, the side of the spacer bar facing the outer cover plate is flush with the side of the transverse reinforcing rib facing the outer cover plate.

[0018] By adopting the above technical solution, the side of the spacer facing the outer cover plate is designed to be flush with the outer surface of the transverse stiffener. The flush planar structure can effectively eliminate the height difference between the two, avoid stress concentration caused by processing errors or assembly deviations, thereby enhancing the deformation resistance of the inner cover plate under the support of the transverse stiffener. At the same time, the flush design makes the spacer and the transverse stiffener form a continuous load-bearing plane. When subjected to external pressure or vibration, the transverse stiffener can distribute the stress on the spacer by distributing the load evenly, reducing the risk of bending or displacement.

[0019] Preferably, the terminal block includes a clamping spring at one end, a wiring screw at the other end, and a nut that cooperates with the wiring screw. The inner cover plate has multiple positioning posts on the side facing away from the outer cover plate, and the multiple positioning posts abut against the ends of the multiple terminals with nuts.

[0020] By adopting the above technical solution, the positioning post abuts against the nut side of the terminal block through its end face, restricting the axial displacement of the terminal block along the axis of the terminal screw. This prevents the terminal block from loosening or axially shifting due to vibration or external impact, effectively avoiding problems such as insufficient electrical clearance or poor contact caused by the offset position of the terminal block, and significantly enhancing the long-term operational reliability of the relay socket.

[0021] Preferably, the positioning post has a positioning hole on the side facing away from the inner cover plate, and one end of the wiring screw is located in the positioning hole.

[0022] By adopting the above technical solution, the positioning hole restricts the axial movement of the screw during the screw-in process through the clearance fit between the inner wall and the screw section, ensuring that the screw thread is fully screwed into the nut of the terminal without tilting or shifting. At the same time, the end of the screw is confined to the positioning hole, preventing the end of the screw from directly pressing against the inner cover plate body when the screw is tightened, and preventing the inner cover plate from being locally deformed or displaced due to the leverage effect.

[0023] Preferably, the terminal block includes a connecting piece located between the clamping spring and the nut, and the inner cover plate has multiple limiting strips on the side facing away from the outer cover plate, and the multiple limiting strips abut against the multiple connecting pieces respectively.

[0024] By adopting the above technical solution, the limiting strip presses against the connecting piece at its end face, restricting the axial displacement of the terminal along the axis of the clamping spring. This prevents the connecting piece between the clamping spring and the nut from bending or twisting due to vibration or external impact, thereby ensuring the continuous clamping force of the clamping spring on the relay pin. At the same time, the contact point between the limiting strip and the connecting piece forms a local support, evenly transferring the force on the terminal to the inner cover plate, avoiding fatigue fracture of the connecting piece due to concentrated force at a single point, and enhancing the bending resistance of the terminal in the housing.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By using the inner cover plate to limit and support the terminals on both sides in both directions, combined with the forced separation of the spacer strip, even if the shell reinforcement is damaged, it can still effectively prevent short circuit problems caused by contact between the two layers of terminals or conductivity of the medium.

[0027] 2. The inner cover plate, spacer strip and transverse / longitudinal reinforcing ribs are connected by plugging and snapping to form a three-dimensional fixing system, which enhances the resistance to vibration and deformation, and ensures accurate terminal block position and reliable electrical connection during long-term operation.

[0028] 3. The positioning post's abutment against the nut end, the limiting strip's support for the connecting piece, and the screw end's limiting hole design provide triple protection for the axial / radial stability of the terminal block, suppressing vibration loosening and fatigue deformation, and extending service life. Attached image description:

[0029] Figure 1 An illustration of an explosion of a highly stable relay socket. Figure 1 ;

[0030] Figure 2 A top view of a highly stable relay socket;

[0031] Figure 3 Schematic diagram of the inner cover plate Figure 1 ;

[0032] Figure 4 for Figure 2 A sectional view.

[0033] Reference numerals: 1. Socket housing; 11. Transverse reinforcing rib; 111. Slot; 12. Longitudinal reinforcing rib; 121. Limiting step; 13. Socket hole; 14. Potential connection; 15. Placement slot; 16. Indicator plate; 2. Outer cover plate; 3. Receiving cavity; 4. Inner cover plate; 41. Guide groove; 42. Spacer strip; 43. Insert; 44. Positioning post; 441. Positioning hole; 45. Limiting strip; 5. Wiring terminal; 51. Clamping spring; 52. Nut; 53. Wiring screw; 54. Connecting piece. Detailed implementation method:

[0034] The following section provides a more detailed description, in conjunction with the accompanying diagrams:

[0035] As attached Figure 1As shown, a highly stable relay socket includes a socket housing 1 and an outer cover plate 2 that engages with it. The socket housing 1 is injection molded from insulating material. The socket housing 1 and the outer cover plate 2 engage to form a receiving cavity 3. The inner wall of the receiving cavity 3 is provided with transverse reinforcing ribs 11 and longitudinal reinforcing ribs 12. The transverse reinforcing ribs 11 and longitudinal reinforcing ribs 12 intersect perpendicularly to enhance the strength of the housing. The outer cover plate 2 matches the shape of the socket housing 1 and is sealed to the housing through an edge snap structure or threaded fasteners, covering the opening of the receiving cavity 3 to prevent external dust or liquid from entering.

[0036] The cavity 3 is provided with an inner cover plate 4 that is parallel to the outer cover plate 2. The inner cover plate 4 is made of insulating material. The inner cover plate 4 has a guide groove 41 along the installation direction, which is inserted and cooperates with the transverse reinforcing rib 11 in the socket housing 1. This gives the inner cover plate 4 a clear guide during installation, making it easy to install accurately into the socket housing 1 and improving the installation accuracy and efficiency of the inner cover plate 4.

[0037] As attached Figure 1 and attached Figure 2 As shown, the socket housing 1 has multiple through holes 13 and multiple rows of contact points 14 on the side facing away from the outer cover plate 2. There are four rows of contact points 14 here. There are two rows of contact points 14 on each side of the socket housing 1. The two rows of contact points 14 on the same side are staggered in height and arranged separately at intervals. The transverse reinforcing rib 11 also has placement slots 15 on both sides to connect the holes 13 and the contact points 14. The inner cover plate 4 divides the placement slots 15 into two independent spaces.

[0038] Multiple terminals 5 are provided on both sides of the inner cover plate 4. The terminals 5 on both sides of the inner cover plate 4 are inserted into the placement slots 15 of the two independent spaces. One end of the terminal 5 is provided with a clamping spring 51, which is respectively set in the socket 13. The relay lead passes through the socket 13 and is clamped with the clamping spring 51. The other end of the terminal 5 is provided with a nut 52 and a wiring screw 53 that cooperates with the nut 52. The wiring screw 53 passes through the terminal 14 and is threadedly connected to the nut 52 on the terminal 5. The terminal 5 connects the wires through the cooperation of the wiring screw 53 and the nut 52. The clamping spring 51 and the nut 52 are integrally formed by the connecting piece 54.

[0039] As attached Figure 1 and attached Figure 3As shown, the inner cover plate 4 is provided with spacer strips 42 spaced apart on the side facing the outer cover plate 2. The spacer strips 42 are parallel to the transverse reinforcing ribs 11 and are located between adjacent terminals 5. Inserts 43 are fixed at both ends of the spacer strips 42. The transverse reinforcing ribs 11 have slots 111 for inserting and engaging the inserts 43. The spacer strips 42 can physically isolate adjacent terminals 5, effectively increasing the distance between adjacent terminals 5. At the same time, the tight fit between the inserts 43 and the slots 111 can effectively suppress the risk of loosening of the spacer strips 42 under long-term vibration or impact conditions, ensuring that the safe distance between adjacent terminals 5 remains stable.

[0040] The longitudinal stiffener 12 is provided with a limiting step 121 for the spacer strip 42 to be engaged. After the spacer strip 42 is engaged with the longitudinal stiffener 12, the side of the spacer strip 42 facing the outer cover plate 2 is flush with the side of the transverse stiffener 11 facing the outer cover plate 2. The limiting step 121 and the spacer strip 42 form a locking fit, realizing the bidirectional limiting of the spacer strip 42 in the longitudinal direction, and firmly engaging the spacer strip 42 in the preset position. At the same time, the flush design makes the spacer strip 42 and the transverse stiffener 11 form a continuous bearing plane. When subjected to external pressure or vibration, the transverse stiffener 11 can distribute the stress on the spacer strip 42 by distributing the load evenly, reducing the risk of bending or displacement.

[0041] As attached Figure 1 and attached Figure 4 As shown, the inner cover plate 4 has multiple positioning posts 44 on the side facing away from the outer cover plate 2. The positioning posts 44 have positioning holes 441 on the side facing away from the inner cover plate 4. One end of the wiring screw 53 is located in the positioning hole 441, and the multiple positioning posts 44 abut against the ends of the multiple terminals 5 with nuts 52, respectively, to limit the axial displacement of the terminals 5 along the axis of the wiring screw 53, and prevent the terminals 5 from loosening or axially moving due to vibration or external impact, effectively avoiding the problem of insufficient electrical clearance or poor contact caused by the positional deviation of the terminals 5.

[0042] The inner cover plate 4 has multiple limiting strips 45 on the side facing away from the outer cover plate 2, and the multiple limiting strips 45 abut against multiple connecting pieces 54 respectively. The contact point between the limiting strips 45 and the connecting pieces 54 forms a local support, which evenly transmits the force on the terminal 5 to the inner cover plate 4, avoids fatigue fracture of the connecting piece 54 due to concentrated force at a single point, and enhances the bending resistance of the terminal 5 in the housing.

[0043] Work results:

[0044] The inner cover plate 4 provides differentiated limiting and support for the terminals 5 on both sides through its body structure. The side facing away from the outer cover plate 2 achieves axial limiting by abutting the terminals 5, effectively suppressing the axial displacement of the terminals 5 caused by vibration or external force. The side facing the outer cover plate 2 provides lateral bending resistance to the terminals 5 through planar support, preventing the electrical clearance from shrinking due to pressure deformation. This synergistic design of bidirectional limiting and support makes the two layers of terminals 5 physically isolated in space. Even if the reinforcing rib of the socket housing 1 is partially damaged, the risk of short circuit caused by direct contact between the upper and lower layers of terminals 5 or dielectric conductivity can still be avoided.

[0045] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A highly stable relay socket, comprising a socket housing (1) and an outer cover plate (2) that engages therewith, wherein the outer surface of the socket housing (1) has a plurality of through holes (13) and a plurality of rows of contact points (14), wherein the contact points (14) in the same row are arranged separately at intervals, and the socket housing (1) and the outer cover plate (2) engage to form a receiving cavity (3), characterized in that, The cavity (3) is provided with multiple transverse reinforcing ribs (11). On both sides of the transverse reinforcing ribs (11) are respectively provided placement slots (15) for connecting insertion holes (13) and connecting potential (14). The cavity (3) is provided with an inner cover plate (4). The inner cover plate (4) divides the placement slots (15) into two independent spaces. On both sides of the inner cover plate (4) are multiple wiring terminals (5). The wiring terminals (5) on both sides of the inner cover plate (4) are inserted into the placement slots (15) of the two independent spaces. The side of the inner cover plate (4) facing away from the outer cover plate (2) abuts against the wiring terminals (5). The side of the inner cover plate (4) facing the outer cover plate (2) provides support for the wiring terminals (5).

2. The highly stable relay socket according to claim 1, characterized in that, The inner cover plate (4) has a guide groove (41) along its own installation direction, and the socket housing (1) is provided with a transverse reinforcing rib (11), and the guide groove (41) and the transverse reinforcing rib (11) are connected to each other.

3. A highly stable relay socket according to claim 1, characterized in that, The inner cover plate (4) has a plurality of inserts (43) fixed on the side facing the outer cover plate (2), and the transverse reinforcing rib (11) has a slot (111) for inserting and engaging the inserts (43).

4. A highly stable relay socket according to claim 2, characterized in that, The inner cover plate (4) is provided with spacer strips (42) spaced apart on the side facing the outer cover plate (2). The spacer strips (42) are parallel to the transverse reinforcing ribs (11) and the spacer strips (42) are located between adjacent terminals (5).

5. A highly stable relay socket according to claim 4, characterized in that, The socket housing (1) is provided with a longitudinal reinforcing rib (12) perpendicular to the spacer strip (42), and the longitudinal reinforcing rib (12) is provided with a limiting step (121) for the spacer strip (42) to engage.

6. A highly stable relay socket according to claim 4, characterized in that, The side of the spacer (42) facing the outer cover plate (2) is flush with the side of the transverse reinforcing rib (11) facing the outer cover plate (2).

7. A highly stable relay socket according to claim 1, characterized in that, The terminal block (5) includes a clamping spring (51) at one end, a wiring screw (53) at the other end, and a nut (52) that cooperates with the wiring screw (53). The inner cover plate (4) has multiple positioning posts (44) on the side facing away from the outer cover plate (2), and the multiple positioning posts (44) abut against the ends of the multiple terminals (5) with nuts (52).

8. A highly stable relay socket according to claim 7, characterized in that, The positioning post (44) has a positioning hole (441) on the side facing away from the inner cover plate (4), and one end of the wiring screw (53) is located in the positioning hole (441).

9. A highly stable relay socket according to claim 7, characterized in that, The terminal block (5) includes a connecting piece (54) located between the clamping spring (51) and the nut (52). The inner cover plate (4) is provided with multiple limiting strips (45) on the side facing away from the outer cover plate (2), and the multiple limiting strips (45) abut against the multiple connecting pieces (54) respectively.

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