A relay terminal interface structure

Abstract

The utility model discloses a relay terminal interface structure relates to relay technical field, including base, the base middle part is provided with multiple groups of elastic sheet support, and the elastic sheet support is sleeved with the elastic contact piece, the elastic contact piece adopts elastic metal material to make, and both sides elastic contact piece generates contact pressure through elastic deformation, and every group elastic contact piece corresponds a circuit channel, and every group elastic contact piece is connected the circuit channel and is corresponded to be provided with the wiring terminal, the base middle part bolt fixedly has the casing. The application provides a relay terminal interface structure, and the connection between the relay body and the base no longer relies on the welding or the connection mode of the twist joint bolt, but through the bottom pin of relay body is inserted into the plug-in cavity inside that the elastic contact piece end of elastic sheet support is bent, and the stable contact pressure is provided by material deformation, and on the basis of convenient dismounting, the close connection between the pin and the elastic contact piece is also ensured.

Description

Technical Field

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

[0002] A relay, also known as an electric relay, is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. In fact, it is an "automatic switch" that uses a small current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in the circuit.

[0003] Relay terminals on the market often use welding and twist bolt connections to fix the relay to the base. This requires workers to use additional tools for disassembly and installation, which affects the disassembly speed and makes the device inconvenient to disassemble and install. Utility Model Content

[0004] The purpose of this invention is to provide a relay terminal interface structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a relay terminal interface structure, including a base, with multiple sets of spring sheet supports in the middle of the base, and elastic contact sheets sleeved on the spring sheet supports. The elastic contact sheets are made of elastic metal material, and the elastic contact sheets on both sides generate contact pressure through elastic deformation.

[0006] Furthermore, each set of elastic contact pieces corresponds to a circuit channel, and each set of elastic contact pieces is connected to a circuit channel with corresponding wiring terminals.

[0007] Furthermore, the base is bolted to a housing in the middle, and the main body of the housing is made of flame-retardant engineering plastic.

[0008] Furthermore, positioning ribs are fixedly installed at both ends of the housing, and the positioning ribs at both ends are arranged in an asymmetrical structure.

[0009] Furthermore, the housing has several slots in the middle, and the slots are positioned corresponding to the spring clip brackets.

[0010] Furthermore, a relay body is inserted into the housing, and the relay body has anti-foolproof grooves at both ends that cooperate with the positioning protrusions at the corresponding positions.

[0011] Furthermore, a coil is provided inside the relay body, and an armature is provided outside the coil.

[0012] Furthermore, the relay body has pins connected to its bottom, and the pins cooperate with the insertion cavity formed by bending the end of the elastic contact piece.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In use, the connection between the relay body and the base no longer relies on welding or twisting bolts. Instead, the bottom pin of the relay body is inserted into the insertion cavity formed by bending the end of the elastic contact piece on the spring support. Stable contact pressure is provided by material deformation, which not only facilitates disassembly and assembly but also ensures a tight connection between the pin and the elastic contact piece.

[0015] 2. When using this utility model, the positioning ribs with an asymmetrical structure are set at both ends of the housing. The correct insertion direction is ensured by the forced alignment of the anti-fooling grooves at both ends of the relay body with the positioning ribs. If the user tries to insert in the opposite direction, the anti-fooling structure will prevent complete insertion due to physical interference, so that the pins and the elastic contact pieces are strictly aligned, avoiding misalignment of the slot or poor contact caused by misalignment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the device of this utility model;

[0018] Figure 3 This is a schematic diagram of part of the structure of the device of this utility model.

[0019] In the diagram: 1. Base; 2. Spring support; 3. Elastic contact piece; 4. Terminal block; 5. Housing; 6. Positioning rib; 7. Slot; 8. Relay body; 9. Foolproof slot; 10. Coil; 11. Armature; 12. Pin. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 3As shown, a relay terminal interface structure includes a base (1), a plurality of spring support brackets (2) are provided in the middle of the base (1), and elastic contact pieces (3) are sleeved on the spring support brackets (2). The elastic contact pieces (3) are made of elastic metal material, and the elastic contact pieces (3) on both sides generate contact pressure through elastic deformation. Each set of elastic contact pieces (3) corresponds to a circuit channel, and each set of elastic contact pieces (3) is connected to a circuit channel with a corresponding terminal block (4). A housing (5) is bolted in the middle of the base (1), and the main body of the housing (5) is flame-retardant engineering plastic. Positioning ribs (6) are fixedly installed at both ends of the housing (5), and the positioning ribs (6) at both ends are arranged in an asymmetrical structure. Several slots (7) are opened in the middle of the housing (5), and the slots (7) are arranged corresponding to the positions of the spring support brackets (2).

[0022] The specific operation is as follows: The connection between the relay body (8) and the base (1) no longer relies on welding or twisting bolts. Instead, the bottom pin (12) of the relay body (8) is inserted into the insertion cavity formed by bending the end of the elastic contact piece (3) on the spring support (2). Stable contact pressure is provided by material deformation. On the basis of easy disassembly and assembly, the tight connection between the pin (12) and the elastic contact piece (3) is also ensured.

[0023] like Figures 1 to 3 As shown, a relay body (8) is inserted into the housing (5), and the relay body (8) has anti-foolproof grooves (9) at both ends that cooperate with the positioning protrusions (6) at the corresponding positions. A coil (10) is provided inside the relay body (8), and an armature (11) is provided outside the coil (10). A pin (12) is connected to the bottom of the relay body (8), and the pin (12) cooperates with the insertion cavity formed by bending the end of the elastic contact piece (3).

[0024] The specific operation is as follows: by setting a positioning rib (6) with an asymmetrical structure at both ends of the housing (5), the correct insertion direction is ensured by the forced alignment of the anti-fooling groove (9) at both ends of the relay body (8) with the positioning rib (6). If the user tries to insert in the opposite direction, the anti-fooling structure will prevent complete insertion due to physical interference, so that the pin (12) and the elastic contact piece (3) are strictly aligned, avoiding misalignment of the slot (7) or poor contact.

[0025] Working principle: The connection between the relay body (8) and the base (1) no longer relies on welding or twisting bolts. Instead, the pin (12) at the bottom of the relay body (8) is inserted into the insertion cavity formed by bending the end of the elastic contact piece (3) on the spring support (2). Stable contact pressure is provided by material deformation. In addition to facilitating disassembly and assembly, it also ensures a tight connection between the pin (12) and the elastic contact piece (3). By setting a positioning rib (6) with an asymmetrical structure at both ends of the housing (5), the correct insertion direction is ensured by the forced alignment of the anti-fooling groove (9) at both ends of the relay body (8) with the positioning rib (6). If the user tries to insert in the opposite direction, the anti-fooling structure will prevent complete insertion due to physical interference, so that the pin (12) and the elastic contact piece (3) are strictly aligned, avoiding misalignment of the slot (7) or poor contact caused by misalignment.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A relay terminal interface structure, comprising a base (1), characterized in that, The base (1) is provided with multiple sets of spring clip brackets (2) in the middle, and elastic contact pieces (3) are sleeved on the spring clip brackets (2). The elastic contact pieces (3) are made of elastic metal material, and the elastic contact pieces (3) on both sides generate contact pressure through elastic deformation.

2. The relay terminal interface structure according to claim 1, characterized in that, Each set of elastic contact pieces (3) corresponds to a circuit channel, and each set of elastic contact pieces (3) is connected to a circuit channel with a corresponding terminal block (4).

3. The relay terminal interface structure according to claim 2, characterized in that, The base (1) is bolted to the middle of the housing (5), and the main body of the housing (5) is flame-retardant engineering plastic.

4. The relay terminal interface structure according to claim 3, characterized in that, The housing (5) is fixedly installed with positioning ribs (6) at both ends, and the positioning ribs (6) at both ends are arranged in an asymmetrical structure.

5. A relay terminal interface structure according to claim 4, characterized in that, The housing (5) has several slots (7) in the middle, and the slots (7) are set at the positions of the spring clip bracket (2).

6. A relay terminal interface structure according to claim 5, characterized in that, A relay body (8) is inserted into the housing (5), and the relay body (8) has anti-foolproof grooves (9) at both ends that cooperate with the positioning protrusions (6) at the corresponding positions.

7. A relay terminal interface structure according to claim 6, characterized in that, The relay body (8) is provided with a coil (10) inside, and an armature (11) is provided on the outside of the coil (10).

8. A relay terminal interface structure according to claim 7, characterized in that, The relay body (8) has a pin (12) connected to its bottom, and the pin (12) is engaged with the insertion cavity formed by bending the end of the elastic contact piece (3).

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