Auxiliary terminal structure for relay

Abstract

The utility model relates to the technical field of relay wiring terminals, and discloses an auxiliary terminal structure for a relay, which comprises a terminal seat arranged on the relay, and is characterized in that a plurality of rows of wiring terminals are arranged on the terminal seat, the plurality of wiring terminals are distributed in a linear array, two sides of each wiring terminal are respectively provided with a limiting groove, and the limiting grooves are arranged in the terminal seat. According to the utility model, the rubber pressing plates are pushed to move through the clamping blocks, and a lead cable inserted into the wire inserting groove is extruded to a terminal conductive core on one side by utilizing the unique round-edge convex structural characteristics of the rubber pressing plates, so that the terminal conductive core is clamped, and the lead cable is inserted into the wire inserting groove to be clamped into the terminal conductive core on the other side. Circuit connection between the wire cable and the terminal conductive core is realized, and the electric connector has the advantages of sufficient extrusion and relatively low electric connection resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of relay wiring terminals, in particular to an auxiliary terminal structure for a relay. Background Art

[0002] The terminals of a relay, in electrotechnics, generally refer to wiring terminals, also called connection terminals, which are generally composed of a terminal block, a terminal core, a fixing nut, etc. Among them, the terminal block and the terminal core are the main parts of the wiring terminal. The types and varieties of terminals are rich and the styles are changeable, including single-hole, double-hole, sockets, hooks, etc. Classified by materials, there are copper-plated silver, copper-plated zinc, copper, aluminum, iron, etc. The main function of the terminal is to connect circuits in the circuit. Using connection terminals to connect wires has the characteristics of safe and convenient wiring.

[0003] However, in the pressing mechanism between the wire and the conductive bar of the existing relay wiring terminal, there are generally some technical problems. If the pressure generated by the pressing mechanism is insufficient, resulting in insufficient contact between the wire and the conductive bar, then a relatively high contact resistance may be formed between the two. Such a wiring terminal cannot form a good electrical connection and may affect the normal power distribution work of the relay.

[0004] In summary, an auxiliary terminal structure for a relay that can solve the above problems is proposed. Summary of the Utility Model

[0005] To solve the technical problem of sufficient contact between the wire of the wiring terminal and the conductive sheet, the utility model provides an auxiliary terminal structure for a relay.

[0006] The utility model is realized by the following technical solutions: an auxiliary terminal structure for a relay, including a terminal block installed on the relay. A plurality of wiring terminals are arranged on the terminal block, and the plurality of wiring terminals are linearly and arrayedly distributed. Limiting grooves are respectively opened on both sides of each wiring terminal. Rubber pressing plates are respectively slidably connected to the inner sides of the limiting grooves. One sides of the two rubber pressing plates are respectively rotatably connected to threaded rods. Plugging groove mechanisms for accessing external conductive lines are arranged on one sides of the two limiting grooves. Push rod mechanisms for reciprocating the rubber pressing plates forward and backward along the limiting grooves are respectively arranged at one ends of the two threaded rods.

[0007] As a further improvement of the above solution, the plugging groove mechanism includes plugging grooves respectively opened on both sides of the upper side of each wiring terminal. The inner sides of the plugging grooves communicate with the inner sides of the adjacent limiting grooves on the same side. A power connection mechanism for circuit connection of the inserted wire and cable is arranged on the inner sides of the two plugging grooves.

[0008] As a further improvement of the above solution, the power connection mechanism includes terminal conductive cores fixedly connected to the inner sides of each of the wire insertion slots. The height positions of the upper ends of the two terminal conductive cores exceed the height of the upper side of the rubber pressing plate but do not exceed the height of the upper slot opening of the wire insertion slot. The lower ends of the two terminal conductive cores extend downward, and a conductive bar mechanism for electrically connecting the lower ends of the two terminal conductive cores on both sides is arranged on the lower side of the terminal conductive cores.

[0009] As a further improvement of the above solution, the conductive bar mechanism includes a culvert groove opened at the bottom of each of the connection terminals. The two sides of the culvert groove are respectively communicated with the lower ends of the wire insertion slots. The culvert groove is located below the limit groove, and the lower ends of the two terminal conductive cores are fixedly connected together with a conductive bar penetrating through the inside of the culvert groove.

[0010] As a further improvement of the above solution, the push rod mechanism includes threaded sleeves respectively arranged on both sides of each of the connection terminals. The two threaded sleeves are respectively located outside the two limit grooves. The threaded sleeves are threadedly sleeved with the same-side threaded rods, and a threaded rod pushing mechanism for moving the threaded rods along the inside of the threaded sleeves to one side is arranged on the two threaded rods.

[0011] As a further improvement of the above solution, the threaded rod pushing machine includes card slots opened on both of the threaded rods. A clamping block is respectively paired and arranged on the inner side of each card slot, and a positioning bolt is fixedly connected to one side of each clamping block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model pushes the rubber pressing plate to move through the clamping block, and utilizes the unique round-edge convex structure characteristic of the rubber pressing plate to squeeze the wire and cable inserted into the wire insertion slot onto one side of the terminal conductive core, realizing the electrical connection between the wire and cable and the terminal conductive core, and having the advantages of sufficient extrusion and small power connection resistance.

[0014] 2. The present utility model pushes the threaded rod to rotate through the clamping block, and through the action of the threaded connection between the threaded rod and the threaded sleeve, the feeding of the rubber pressing plate is promoted, having the characteristics of long service life, reliable power connection, and not easy to loosen, and avoiding the situation that the connection terminal is not easy to have poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of an auxiliary terminal structure for a relay provided by the present utility model;

[0016] Figure 2 is Figure 1 the structural schematic diagram of a single connection terminal in

[0017] Figure 3 isFigure 2 Cross-sectional view;

[0018] Figure 4 is Figure 2 Exploded structural schematic diagram of;

[0019] Figure 5 Schematic diagram of the spatial intersection of the wire slot (3) and the limit slot (9).

[0020] Main symbol description:

[0021] 1. Terminal block; 3. Wire slot; 4. Positioning bolt; 5. Terminal conductive core; 6. Rubber pressing plate; 7. Conductive bar; 8. Culvert groove; 9. Limit slot; 10. Threaded rod; 11. Threaded sleeve; 12. Card slot; 13. Card block. Specific embodiments

[0022] Next, in combination with the drawings and specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0023] Embodiment:

[0024] Please combine Figure 1 - Figure 4 , an auxiliary terminal structure for a relay in this embodiment includes a terminal block 1, which is installed on the relay. There are 5 rows of wiring terminals on the terminal block 1, and the 5 wiring terminals are linearly arranged in an array. Limit slots 9 are respectively opened on both sides of each wiring terminal, and rubber pressing plates 6 are respectively slidably connected to the inner sides of each limit slot 9. As Figure 4 shown, the outer contour of the rubber pressing plate 6 is a smooth convex shape at the edge, and it is made of composite rubber material. On the one hand, it can improve the elasticity of the rubber pressing plate 6 and avoid damage to the cable structure caused by excessive extrusion. On the other hand, it can increase the insulation performance of the current, which is beneficial to protecting the personal safety of the staff. Push rods 10 are respectively rotatably connected to one side of the 2 rubber pressing plates 6, and plug-in slot mechanisms for accessing external conductive lines are arranged on one side of the 2 limit slots 9. One end of each of the two threaded rods 10 is provided with a push rod mechanism for reciprocating the rubber pressing plate 6 back and forth along the limit slot 9.

[0025] Please combine Figure 3 shown, the plug-in slot mechanism includes wire slots 3 respectively opened on both sides of the upper side of each wiring terminal. The inner sides of each wire slot 3 communicate with the inner sides of the adjacent limit slots 9 on the same side, and a power connection mechanism for electrically connecting the inserted wire cables is arranged on the inner sides of the two wire slots 3.

[0026] As Figure 5As shown, it should be specifically noted that the wire insertion groove 3 is of an inner cylindrical structure, while the limit groove 9 is of an inner cuboid structure. The space where the wire insertion groove 3 intersects with the limit groove 9 is at the position where the edge of the limit groove 9 passes through the center of the wire insertion groove 3.

[0027] Please refer to Figure 3 As shown, the power connection mechanism includes a terminal conductive core 5 fixedly connected to the inner side of each wire insertion groove 3. The terminal conductive core 5 is a semi-circular bent copper sheet structure. The height positions of the upper ends of the two terminal conductive cores 5 exceed the height of the upper side of the rubber pressing plate 6 but do not exceed the height of the upper side slot opening of the wire insertion groove 3. This can ensure that the inserted cable can be in full contact with the terminal conductive core 5, reducing the conductive resistance here. The lower ends of the two terminal conductive cores 5 all extend downward, and a conductive bar mechanism for circuit connection of the lower ends of the two terminal conductive cores 5 on both sides is arranged on the lower side of the terminal conductive core 5.

[0028] Please refer to Figure 3 and Figure 4 As shown, the conductive bar mechanism includes a culvert groove 8 opened at the bottom of each terminal. The two sides of the culvert groove 8 are respectively communicated with the lower end of the wire insertion groove 3. The culvert groove 8 is located below the limit groove 9. The lower ends of the two terminal conductive cores 5 are jointly fixedly connected with a conductive bar 7 penetrating through the inside of the culvert groove 8.

[0029] Please refer to Figure 3 and Figure 4 As shown, the push rod mechanism includes threaded sleeves 11 respectively arranged on both sides of each terminal. The two threaded sleeves 11 are respectively located outside the two limit grooves 9. The threaded sleeve 11 is threadedly sleeved with the same-side threaded rod 10. A threaded rod pushing mechanism for moving the threaded rod 10 along the inside of the threaded sleeve 11 to one side is arranged on the two threaded rods 10.

[0030] Please refer to Figure 3 and Figure 4 As shown, the threaded rod pushing machine includes a clamping groove 12 opened on each of the two threaded rods 10. The clamping groove 12 is of an inner cross shape. A clamping block 13 is respectively paired and arranged on the inner side of each clamping groove 12. The clamping block 13 is of a cross-shaped stretching structure. A positioning bolt 4 is fixedly connected to one side of each clamping block 13. It should be noted that the clamping groove 12 and the clamping block 13 in this embodiment can be designed into other rhombus structures, which are also within the protection scope of the present utility model.

[0031] In the embodiment of the present application, the implementation principle of an auxiliary terminal structure for a relay is as follows: The user inserts a wire with one end peeled to expose a copper cable into the wire slot 3 and inserts it to the bottom of the slot. Then, the user turns the positioning bolt 4 with a screwdriver to drive the rotation of the clamping block 13. Since the clamping block 13 is clamped in the clamping slot 12, the threaded rod 10 can be driven to rotate within the threaded sleeve 11. Since the threaded rod 10 is rotatably connected to one side of the rubber pressing plate 6, the effect that the threaded rod 10 rotates while pushing towards the limiting slot 9 can be achieved. At this time, the cable at the intersection of the limiting slot 9 and the inner side of the wire slot 3 is pushed and squeezed to one side by the rubber pressing plate 6 with a convex structure, achieving the effect of the wire cable contacting one side of the terminal conductive core 5.

[0032] The above implementation manners are only the preferred implementation manners of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. An auxiliary terminal structure for a relay, comprising a terminal base (1) installed on the relay, characterized in that, The terminal block (1) is provided with multiple rows of terminal connectors. The multiple terminal connectors are distributed in a linear array. Limiting grooves (9) are respectively opened on both sides of each terminal connector. Rubber pressing plates (6) are respectively and slidably connected to the inner sides of the limiting grooves (9). One sides of the two rubber pressing plates (6) are respectively rotatably connected to threaded rods (10). Plugging groove mechanisms for accessing external conductive lines are arranged on one sides of the two limiting grooves (9). One ends of the two threaded rods (10) are respectively provided with push rod mechanisms for reciprocating the rubber pressing plates (6) back and forth along the limiting grooves (9).

2. The auxiliary terminal structure for a relay according to claim 1, characterized in that, The plugging groove mechanism includes plugging grooves (3) respectively opened on both sides of the upper side of each terminal connector. The inner sides of the plugging grooves (3) communicate with the inner sides of the adjacent limiting grooves (9) on the same side. Electric connection mechanisms for electrically connecting the inserted wire cables are arranged on the inner sides of the two plugging grooves (3).

3. The auxiliary terminal structure for a relay according to claim 2, characterized in that, The electric connection mechanism includes terminal conductive cores (5) fixedly connected to the inner sides of the plugging grooves (3). The height positions of the upper ends of the two terminal conductive cores (5) exceed the height of the upper sides of the rubber pressing plates (6) but do not exceed the height of the upper side slots of the plugging grooves (3). The lower ends of the two terminal conductive cores (5) extend downward. A conductive bar mechanism for electrically connecting the lower ends of the two terminal conductive cores (5) on both sides is arranged on the lower sides of the terminal conductive cores (5).

4. The auxiliary terminal structure for a relay according to claim 3, characterized in that, The conductive bar mechanism includes a culvert groove (8) opened at the bottom of each terminal connector. The two sides of the culvert groove (8) communicate with the lower ends of the plugging grooves (3) respectively. The culvert groove (8) is located below the limiting groove (9). The lower ends of the two terminal conductive cores (5) are jointly fixedly connected with a conductive bar (7) penetrating through the inside of the culvert groove (8).

5. An auxiliary terminal structure for a relay according to claim 1, characterized in that, The push rod mechanism includes threaded sleeves (11) respectively arranged on both sides of each terminal connector. The two threaded sleeves (11) are respectively located outside the two limiting grooves (9). The threaded sleeves (11) are threadedly sleeved with the threaded rods (10) on the same side. A threaded rod pushing mechanism for moving the threaded rods (10) along the inside of the threaded sleeves (11) to one side is arranged on the two threaded rods (10).

6. The auxiliary terminal structure for a relay according to claim 5, characterized in that, The threaded rod pushing machine includes clamping grooves (12) respectively opened on the two threaded rods (10). Clamping blocks (13) are respectively and pairedly arranged on the inner sides of the clamping grooves (12). A positioning bolt (4) is fixedly connected to one side of each clamping block (13).

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