Adjustable protection relay

Abstract

The utility model relates to the technical field of relays, in particular to an adjustable protective relay which comprises a connecting plate, a mounting plate is fixedly arranged on one side of the connecting plate, a coil is arranged on one side of the mounting plate, and an extrusion plate is fixedly arranged on the other side of the coil. According to the utility model, a coil required by a relay is installed in the device, one end of the coil is fixed on the installation plate, the other end of the coil is contacted with the extrusion plate, the extrusion plate moves according to the size of the coil, the movable block is driven to freely move in the groove in the installation block, and the buffer spring is elastically deformed through extrusion; the device is provided with a portable clamping connection mechanism, the fixing plate can be stably fixed to the outer portion of the relay through simple clamping connection, the coil is elastically fixed through elastic deformation of buffering elasticity, and therefore the coil can be stably fixed to the outer portion of the relay through the clamping connection mechanism. The device can be suitable for installation of coils of different specifications and sizes.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to an adjustable protection relay. Background Technology

[0002] Traditional mechanical relays are widely used in circuit breakers, disconnect switches, grounding switches, main transformer terminal boxes and mechanisms, playing an important role in control, signal transmission and other operations.

[0003] An adjustable relay disclosed in announcement number CN 212258402 U includes a controlled terminal and a load, as well as an input circuit module, a power supply circuit module, a relay module, and a driver. The output terminal of the controlled terminal is electrically connected to the input terminal of the input circuit module. The input circuit module and the relay module are connected via the driver. The output terminal of the relay module is electrically connected to the load. The power supply circuit module supplies power to the input circuit module, the relay module, and the driver. This device lacks a convenient snap-fit ​​connection mechanism, preventing the relay from being assembled and protected through simple snap-fit ​​connections. It also lacks an elastic compression structure, preventing the coil from being elastically fixed through buffered elastic deformation, thus limiting the device's applicability. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art by providing an adjustable protection relay.

[0005] An adjustable protective relay includes a connecting plate. A mounting plate is fixedly mounted on one side of the connecting plate, a coil is mounted on one side of the mounting plate, and a pressing plate is fixedly mounted on the other side of the coil. An elastic pressing mechanism is fixedly mounted on the side of the pressing plate. The elastic pressing mechanism includes a movable block, a mounting block, a groove, a telescopic rod, and a buffer spring. Several movable blocks are provided on the side of the pressing plate, and a mounting block is provided on the other side of the movable blocks. A groove is formed inside the mounting block, and the movable blocks are movably connected to the groove. A telescopic rod is fixedly mounted on one side inside the groove, and one end of the telescopic rod is fixedly connected to the movable block. A buffer spring is fixedly mounted on the outside of the telescopic rod, and one end of the buffer spring is fixedly connected to the movable block.

[0006] Preferably, a plurality of coil welding pieces are fixedly arranged on one side of the outer side of the connecting plate, and contact welding pieces are fixedly arranged on the other side of the outer side of the connecting plate. The main function of the welding pieces is to connect two or more metal parts together, while ensuring the stability and reliability of the connection and transferring energy.

[0007] Preferably, two limiting plates are fixedly provided on the side of the mounting plate, and a first contact piece is fixedly provided inside the limiting plate. The first contact piece is fixedly installed inside the limiting plate and is connected to the coil end to play the role of current transmission.

[0008] Preferably, a fixing plate is fixedly provided at the top of the first contact piece, a slot is fixedly provided on one side of the outer side of the fixing plate, an isolation plate is movably provided inside the slot, and the other side of the isolation plate is fixedly connected to the connecting plate. The movable connection between the slot and the isolation plate can separate the two second contact pieces and also limit the installation position of the fixing plate.

[0009] Preferably, two fixing screws are fixedly provided on one side of the top of the fixing plate. The fixing screws pass through the fixing plate and a positioning plate is fixedly provided. The positioning plate is fixedly connected to the mounting block. By rotating the fixing screws through the fixing plate and movably connecting them to the inside of the positioning plate, the position of the fixing plate can be limited and fixed to ensure its stability.

[0010] Preferably, a second contact piece is fixedly disposed on the side of the fixing plate near the fixing screw, and a third contact piece is fixedly disposed on the side of the second contact piece. The second contact piece and the third contact piece serve to transmit current.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This adjustable protective relay, the operator first opens the mounting plate and installs the required coil of the relay inside. One end of the coil is fixed to the mounting plate, and the other end contacts the compression plate. The compression plate will shift according to the size of the coil, causing the movable block to move freely in the groove inside the mounting block. Through compression, the buffer spring undergoes elastic deformation, and with the elastic recovery of the telescopic rod, the coil is elastically clamped and fixed. After the position is fixed, the operator closes the mounting plate. The two ends of the mounting plate are respectively engaged with the first contact piece and the second contact piece, and are reinforced with fixing screws to prevent the mounting plate from falling off. The slot on one side of the mounting plate engages with the isolation plate to play a limiting role.

[0013] This adjustable protective relay features a convenient snap-fit ​​connection mechanism. The mounting plate can be stably fixed to the outside of the relay through a simple snap-fit ​​connection, providing effective safety protection for the internal coil. The elastic compression structure uses buffered elastic deformation to elastically fix the coil, making the device suitable for installation with coils of different sizes, thus greatly expanding the applicability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial structural installation diagram of the present invention;

[0016] Figure 3This is a schematic diagram of the installation of the welding sheet structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation of the elastic compression fixing structure of this utility model.

[0018] In the diagram: 1. Connecting plate; 2. Mounting plate; 3. Coil; 4. Extrusion plate; 5. Movable block; 6. Mounting block; 7. Groove; 8. Telescopic rod; 9. Buffer spring; 10. Coil welding piece; 11. Contact welding piece; 12. Limiting plate; 13. First contact piece; 14. Fixing plate; 15. Slot; 16. Isolation plate; 17. Fixing screw; 18. Positioning plate; 19. Second contact piece; 20. Third contact piece. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0021] An adjustable protective relay includes a connecting plate 1, a mounting plate 2 fixedly mounted on one side of the connecting plate 1, a coil 3 mounted on one side of the mounting plate 2, a pressing plate 4 fixedly mounted on the other side of the coil 3, and an elastic pressing mechanism fixedly mounted on the side of the pressing plate 4. The elastic pressing mechanism includes a movable block 5, a mounting block 6, a groove 7, a telescopic rod 8, and a buffer spring 9. Several movable blocks 5 are mounted on the side of the pressing plate 4, and a mounting block 6 is mounted on the other side of the movable blocks 5. A groove 7 is formed inside the mounting block 6, and the movable blocks 5 are movably connected to the groove 7. A telescopic rod 8 is fixedly mounted on one side inside the groove 7, and one end of the telescopic rod 8 is fixedly connected to the movable block 5. A buffer spring 9 is fixedly mounted on the outside of the telescopic rod 8, and one end of the buffer spring 9 is fixedly connected to the movable block 5.

[0022] In this embodiment, preferably, a plurality of coil welding pieces 10 are fixedly arranged on one side of the outer side of the connecting plate 1, and a contact welding piece 11 is fixedly arranged on the other side of the outer side of the connecting plate 1. The main function of the welding pieces is to connect two or more metal parts together, while ensuring the stability and reliability of the connection and transferring energy.

[0023] In this embodiment, preferably, two limiting plates 12 are fixedly provided on the side of the mounting plate 2, and a first contact piece 13 is fixedly provided inside the limiting plate 12. The first contact piece is fixedly installed inside the limiting plate and is connected to the coil end to play the role of current transmission.

[0024] In this embodiment, preferably, a fixing plate 14 is fixedly provided at the top of the first contact piece 13, a slot 15 is fixedly provided on one side of the outside of the fixing plate 14, an isolation plate 16 is movably provided inside the slot 15, and the other side of the isolation plate 16 is fixedly connected to the connecting plate 1. The movable connection between the slot and the isolation plate can separate the two second contact pieces and also limit the installation position of the fixing plate.

[0025] In this embodiment, preferably, two fixing screws 17 are fixedly provided on one side of the top of the fixing plate 14. The fixing screws 17 pass through the fixing plate 14 and a positioning plate 18 is fixedly provided. The positioning plate 18 is fixedly connected to the mounting block 6. The fixing screws are rotated through the fixing plate and movably connected to the inside of the positioning plate, so that the position of the fixing plate can be limited and fixed to ensure its stability.

[0026] In this embodiment, preferably, a second contact piece 19 is fixedly disposed on the side of the fixing plate 14 near the fixing screw 17, and a third contact piece 20 is fixedly disposed on the side of the second contact piece 19. The second contact piece and the third contact piece serve to transmit current.

[0027] In this embodiment of the adjustable protective relay, the operator first opens the fixing plate 14 and installs the required coil 3 into it. One end of the coil 3 is fixed to the mounting plate 2, and the other end contacts the compression plate 4. The compression plate 4 shifts according to the size of the coil 3, causing the movable block 5 to move freely within the groove 7 inside the mounting block 6. The compression causes the buffer spring 9 to elastically deform, and the telescopic rod 8 elastically recovers, clamping and fixing the coil 3. After fixing the position, the operator closes the fixing plate 14. Both ends of the fixing plate 14 are respectively connected to the first contact... The contact piece 13 and the second contact piece 19 are engaged and reinforced with fixing screws 17 to prevent the fixing plate 14 from falling off. The slot 15 on one side of the fixing plate 14 engages with the isolation plate 16 to limit the movement. The device has a convenient engagement mechanism, which can stably fix the fixing plate 14 to the outside of the relay through a simple engagement connection, and can effectively protect the internal coil 3. The elastic compression structure is designed to elastically fix the coil 3 by buffering the elastic deformation, so that the device can be used to install coils 3 of different sizes, which greatly improves the applicability of the device.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable protective relay, comprising a connecting plate (1), characterized in that: A mounting plate (2) is fixedly installed on one side of the connecting plate (1), a coil (3) is installed on one side of the mounting plate (2), and a pressing plate (4) is fixedly installed on the other side of the coil (3). An elastic pressing mechanism is fixedly installed on the side of the pressing plate (4). The elastic pressing mechanism includes a movable block (5), a mounting block (6), a groove (7), a telescopic rod (8), and a buffer spring (9). Several movable blocks (5) are installed on the side of the pressing plate (4), and a mounting block (6) is installed on the other side of the movable block (5). A groove (7) is opened inside the mounting block (6). The movable block (5) is movably connected to the groove (7). A telescopic rod (8) is fixedly installed on one side inside the groove (7). One end of the telescopic rod (8) is fixedly connected to the movable block (5). A buffer spring (9) is fixedly installed outside the telescopic rod (8). One end of the buffer spring (9) is fixedly connected to the movable block (5).

2. An adjustable protective relay according to claim 1, characterized in that: Several coil welding pieces (10) are fixedly arranged on one side of the outer side of the connecting plate (1), and contact welding pieces (11) are fixedly arranged on the other side of the outer side of the connecting plate (1).

3. An adjustable protective relay according to claim 1, characterized in that: The mounting plate (2) has two limiting plates (12) fixedly installed on its side, and a first contact piece (13) is fixedly installed inside the limiting plate (12).

4. An adjustable protective relay according to claim 3, characterized in that: A fixing plate (14) is fixedly provided at the top of the first contact piece (13). A slot (15) is fixedly provided on one side of the outside of the fixing plate (14). An isolation plate (16) is movably provided inside the slot (15). The other side of the isolation plate (16) is fixedly connected to the connecting plate (1).

5. An adjustable protective relay according to claim 4, characterized in that: Two fixing screws (17) are fixedly installed on one side of the top of the fixing plate (14). The fixing screws (17) pass through the fixing plate (14) and a positioning plate (18) is fixedly installed thereon. The positioning plate (18) is fixedly connected to the mounting block (6).

6. An adjustable protective relay according to claim 4, characterized in that: The fixing plate (14) is fixedly provided with a second contact piece (19) on the side near the fixing screw (17), and a third contact piece (20) is fixedly provided on the side of the second contact piece (19).

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