Modularized solid-state relay

Abstract

The utility model relates to the technical field of solid-state relays, and discloses a modularized solid-state relay which comprises a connecting device and a solid-state relay body, a sensor is installed on the surface of the top end of the solid-state relay body, and the solid-state relay body is in threaded connection with the surface of the top end of the connecting device. The connecting device comprises a locking bolt, a connecting base, a limiting assembly and a relay base, the connecting base is installed at the front end of the relay base, the limiting assembly is in threaded connection with the front end of the limiting assembly, and the locking bolt is in threaded connection with the lower end of the relay base. According to the modularized solid-state relay, the connecting plates, the connecting cover plates and the metal columns are arranged, the connecting cover plates are inserted into the connecting plates, and the connecting cover plates slide on the surfaces of the metal columns, so that the two connecting plates can be limited and fixed, and different numbers of solid-state relay bodies can be conveniently installed; there is no need to spend a lot of time to adjust the position of the solid-state relay body.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state relays, in particular to a modular solid-state relay. Background Technique

[0002] A solid-state relay is a contactless switch composed of microelectronic circuits, discrete electronic devices, and power electronic power devices. The isolation device is used to achieve the isolation between the control end and the load end. The input end of the solid-state relay uses a tiny control signal to directly drive a large-current load. Solid-state relays have been widely used in computer peripheral interface devices, constant temperature systems, temperature regulation, electric furnace heating control, motor control, numerical control machinery, remote control systems, industrial automation devices; signal lights, dimming, flashers, lighting stage lighting control systems, etc. In addition, they are widely used in chemical industries, coal mines and other places that require explosion-proof, moisture-proof and corrosion-proof.

[0003] The prior art discloses a solid-state relay with the application number: CN202320917258.2, which includes a housing. Both sides of the top of the housing are provided with cooperating connection grooves. The inner bottom of the connection groove is provided with a U-shaped component. The middle of the top of the housing is provided with a mounting plate in the length direction. Both sides of the mounting plate are rotatably provided with protective plates. One end of the protective plate away from the mounting plate is located at the top of the connection groove. In the utility model, the block at the bottom of the end of the protective plate away from the mounting plate can be inserted into the internal card slots on both sides of the housing. During use, the protective plate can play a good protective role for the connection groove and the components inside it, preventing dust from the outside from falling onto the surface of the components from the top of the housing during use, resulting in disconnection of the connection between the connecting wire and the components, and making the connection between the connecting wire and the components more stable during use.

[0004] The above-mentioned solid-state relay is usually installed on a metal plate. When using multiple solid-state relays for installation, different specifications of metal plates are required, which makes the installation of the solid-state relay rather troublesome and takes a lot of time to adjust for installation. Content of the Utility Model

[0005] The purpose of the utility model is to provide a modular solid-state relay to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A modular solid-state relay, including a connection device and a solid-state relay body. A sensor is installed on the top surface of the solid-state relay body. The solid-state relay body is threadedly connected to the top surface of the connection device.

[0007] The connecting device includes a locking bolt, a connecting base, a limiting component and a relay base. The connecting base is installed at the front end of the relay base. The limiting component is threadedly connected to the front end of the limiting component. The locking bolt is threadedly connected to the lower end of the relay base.

[0008] Preferably, the limiting component includes a connecting plate, a metal insert block, a locking threaded rod, a connecting cover plate, a metal column and a locking nut. The metal insert block is fixedly connected to the back surface of the connecting plate. The metal insert block is slidably connected to the back surface of the locking threaded rod. The locking nut is threadedly connected to the threaded end surface of the locking threaded rod. The metal column is fixedly connected to the inner wall surface of the connecting plate. The connecting cover plate is inserted into the front inner wall surface of the connecting plate.

[0009] Preferably, the connecting plate is inserted into the front end of the relay base. The metal insert block is inserted into the front end of the relay base. The connecting plate can push the metal insert block to move backward, so that the connecting plate is inserted into the front end of the relay base, thereby being able to determine the position of the connecting plate.

[0010] Preferably, the locking threaded rod is inserted into the front end of the relay base. The locking nut is threadedly connected to the front end of the relay base. The locking threaded rod penetrates through the front end of the relay base and the inside of the metal insert block, which is convenient for disassembling and replacing the connecting plate.

[0011] Preferably, the number of the locking threaded rods is four. Two of the locking threaded rods are in a group. The two groups of locking threaded rods are distributed front and back. The two locking threaded rods on the same side are distributed up and down.

[0012] Preferably, the connecting base is movably connected to the bottom surface of the connecting plate. The locking bolt is threadedly connected to the rear end of the connecting base. The locking bolt rotates at the rear end of the connecting base, so as to threadedly fix the connecting base and the relay base.

[0013] Preferably, the solid-state relay body is installed on the top surface of the relay base.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] For this modular solid-state relay, by providing a connecting plate, a connecting cover plate and a metal column, the connecting cover plate is inserted into the connecting plate, and at the same time, the connecting cover plate slides on the surface of the metal column, so as to limit and fix the two connecting plates, which is convenient for installing solid-state relay bodies with different numbers, without spending a lot of time adjusting the positions of the solid-state relay bodies, thereby being able to increase the service life of the device.

[0016] The modular solid-state relay is provided with a locking threaded rod, a metal insert block and a relay base. The locking threaded rod is inserted into the front ends of the metal insert block and the relay base, so that the position of the connecting plate can be determined, facilitating the detachment of the connecting plate from the relay base, and enabling the installation of different numbers of solid-state relay bodies. Brief Description of the Drawings

[0017] Figure 1 is an overall three-dimensional schematic diagram of the present utility model;

[0018] Figure 2 is a bottom view schematic diagram of the present utility model;

[0019] Figure 3 is the present utility model Figure 2 a schematic cross-sectional view taken along line A-A in;

[0020] Figure 4 is the present utility model Figure 3 a partially enlarged schematic diagram of the structure at A in;

[0021] Figure 5 is a three-dimensional schematic diagram of the connecting device of the present utility model;

[0022] Figure 6 is a back view schematic diagram of the connecting device of the present utility model.

[0023] In the figures: 1, connecting device; 11, locking bolt; 12, connecting base; 13, limiting component; 131, connecting plate; 132, metal insert block; 133, locking threaded rod; 134, connecting cover plate; 135, metal column; 136, locking nut; 14, relay base; 2, solid-state relay body; 3, sensor. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6 , the present utility model provides the following technical solutions:

[0026] A modular solid-state relay includes a connecting device 1 and a solid-state relay body 2. A sensor 3 is installed on the top surface of the solid-state relay body 2, and the solid-state relay body 2 is threadedly connected to the top surface of the connecting device 1.

[0027] The connecting device 1 includes a locking bolt 11, a connecting base 12, a limiting component 13 and a relay base 14. The solid-state relay body 2 is installed on the top surface of the relay base 14. The connecting base 12 is installed at the front end of the relay base 14. The limiting component 13 is threadedly connected to the front end of the limiting component 13. The locking bolt 11 is threadedly connected to the lower end of the relay base 14.

[0028] The limiting component 13 includes a connecting plate 131, a metal insert block 132, a locking threaded rod 133, a connecting cover plate 134, a metal column 135 and a locking nut 136. The metal insert block 132 is fixedly connected to the back surface of the connecting plate 131. The connecting plate 131 is inserted into the front end of the relay base 14. The metal insert block 132 is inserted into the front end of the relay base 14. The connecting plate 131 can push the metal insert block 132 to move backward, so that the connecting plate 131 is inserted into the front end of the relay base 14, thereby being able to determine the position of the connecting plate 131. The metal insert block 132 is slidably connected to the back surface of the locking threaded rod 133. The locking threaded rod 133 is inserted into the front end of the relay base 14. The locking nut 136 is threadedly connected to the front end of the relay base 14. The locking threaded rod 133 passes through the front end of the relay base 14 and the inside of the metal insert block 132, facilitating the disassembly and replacement of the connecting plate 131. The locking nut 136 is threadedly connected to the threaded end surface of the locking threaded rod 133. The number of the locking threaded rods 133 is four. Two locking threaded rods 133 are in a group. The two groups of locking threaded rods 133 are distributed front and back. The two locking threaded rods 133 on the same side are distributed up and down. The metal column 135 is fixedly connected to the inner wall surface of the connecting plate 131. The connecting base 12 is movably connected to the bottom surface of the connecting plate 131. The locking bolt 11 is threadedly connected to the rear end of the connecting base 12. The locking bolt 11 rotates at the rear end of the connecting base 12, thereby being able to threadedly fix between the connecting base 12 and the relay base 14. The connecting cover plate 134 is inserted into the front inner wall surface of the connecting plate 131.

[0029] During use, push the solid-state relay body 2 downward to threadedly connect the solid-state relay body 2 and the top surface of the relay base 14, facilitating the disassembly and replacement of the solid-state relay body 2.

[0030] Push the connecting plate 131 backward. The connecting plate 131 can push the metal insert block 132 backward, so that the metal insert block 132 is inserted into the front internal part of the relay base 14, making the front surface of the connecting plate 131 and the front surface of the relay base 14 in the same horizontal plane.

[0031] Push the locking threaded rod 133 through the connection part of the relay base 14 and the metal insert block 132, and then rotate the locking nut 136. The locking nut 136 rotates on the threaded end surface of the locking threaded rod 133, thereby being able to threadedly fix between the connecting plate 131 and the relay base 14.

[0032] Push the connecting cover plate 134 to move backward, so that the connecting cover plate 134 is inserted into the inside of the connecting plate 131. At the same time, the connecting cover plate 134 slides on the surface of the metal column 135, so that the front surfaces of the metal column 135 and the connecting cover plate 134 are on the same horizontal plane, which can limit and fix the two connecting plates 131, so that the solid state relay body 2 can be modularly installed.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular solid-state relay, comprising a connecting device (1) and a solid-state relay body (2), characterized in that: A sensor (3) is mounted on the top surface of the solid-state relay body (2), and the solid-state relay body (2) is threadedly connected to the top surface of the connecting device (1). The connecting device (1) includes a locking bolt (11), a connecting base (12), a limiting component (13), and a relay base (14). The connecting base (12) is mounted on the front end of the relay base (14), the limiting component (13) is threadedly connected to the front end of the limiting component (13), and the locking bolt (11) is threadedly connected to the lower end of the relay base (14).

2. The modular solid-state relay according to claim 1, wherein: The limiting component (13) includes a connecting plate (131), a metal insert block (132), a locking threaded rod (133), a connecting cover plate (134), a metal column (135), and a locking nut (136). The metal insert block (132) is fixedly connected to the back surface of the connecting plate (131), the metal insert block (132) is slidably connected to the back surface of the locking threaded rod (133), the locking nut (136) is threadedly connected to the threaded end surface of the locking threaded rod (133), the metal column (135) is fixedly connected to the inner wall surface of the connecting plate (131), and the connecting cover plate (134) is inserted into the front inner wall surface of the connecting plate (131).

3. The modular solid-state relay according to claim 2, wherein: The connecting plate (131) is inserted into the front end of the relay base (14), and the metal insert block (132) is inserted into the front end of the relay base (14).

4. The modular solid state relay according to claim 3, characterized in that: The locking threaded rod (133) is inserted into the front end of the relay base (14), and the locking nut (136) is threadedly connected to the front end of the relay base (14).

5. The modular solid-state relay according to claim 4, characterized in that: The number of the locking threaded rods (133) is four. Two of the locking threaded rods (133) form a group. Two groups of the locking threaded rods (133) are distributed front and back, and the two locking threaded rods (133) on the same side are distributed up and down.

6. The modular solid-state relay according to claim 5, characterized in that: The connecting base (12) is movably connected to the bottom surface of the connecting plate (131), and the locking bolt (11) is threadedly connected to the rear end of the connecting base (12).

7. A modular solid-state relay according to claim 6, characterized in that: The solid-state relay body (2) is mounted on the top surface of the relay base (14).

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