Controller suitable for switching among PLCs

Abstract

The utility model discloses a controller suitable for switching among PLCs, comprising a controller which comprises a controller main body and a wiring terminal. The isolation assembly comprises first slots, insulation sleeves, fixing frames, first springs and L-shaped clamping blocks, the first slots are formed in the two sides of the controller body, the insulation sleeves are arranged on the outer sides of the wiring terminals in a sleeving mode, the fixing frames are fixed to the two ends of the insulation sleeves, one ends of the L-shaped clamping blocks are inserted into the fixing frames, and the other ends of the L-shaped clamping blocks are inserted into the first slots. The two ends of the first spring are fixed to the side edges of the two L-shaped clamping blocks correspondingly. The isolation assembly further comprises second inserting grooves, the second inserting grooves are formed in the upper end and the lower end of the inner side of the first inserting groove, and the front ends of the L-shaped clamping blocks are inserted into the second inserting grooves. According to the utility model, the problems that after the controller is used for a long time, the housing and the wiring terminals are aged or damaged by the external environment, the insulation performance at the wiring terminals is reduced, and the risk of electric leakage exists are solved.

Description

Technical Field

[0001] This utility model relates to the field of PLC controller technology, specifically a controller suitable for switching between PLCs. Background Technology

[0002] A PLC (Programmable Logic Controller) is an electronic device specifically designed for industrial automation control. It primarily replaces traditional relay control circuits, enabling logic control, sequential control, timing / counting control, and other functions for machinery or production processes. Industrial automation systems often require switching between multiple PLCs (e.g., primary / standby redundancy, task allocation, or maintenance switching), thus necessitating the use of controllers suitable for switching between PLCs.

[0003] After prolonged use, the controller's housing and terminals may age or become damaged due to environmental factors, leading to decreased insulation at the terminals and a risk of electrical leakage. Therefore, a controller suitable for switching between PLCs is needed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a controller suitable for switching between PLCs, thereby solving the problems mentioned in the background section. To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a controller suitable for switching between PLCs, comprising:

[0006] The controller includes a controller body and wiring terminals, with the wiring terminals fixed on both sides of the controller body;

[0007] An isolation assembly includes a first slot, an insulating sleeve, a fixing frame, a first spring, and L-shaped locking blocks. The first slot is located on both sides of the controller body. The insulating sleeve is fitted onto the outside of the wiring terminals. The fixing frame is fixed to both ends of the insulating sleeve. One end of the L-shaped locking block is inserted into the fixing frame, and the other end is inserted into the first slot. Both ends of the first spring are fixed to the sides of the two L-shaped locking blocks, respectively.

[0008] Furthermore, the isolation component also includes a second slot, which is located at the upper and lower ends inside the first slot, and the front end of the L-shaped card block is inserted into the second slot.

[0009] Furthermore, the fixing frame, the first spring, and the L-shaped locking block are all made of plastic.

[0010] Furthermore, the controller also includes a mounting plate and heat dissipation holes. The mounting plate is fixed to the lower end of the controller body, and the heat dissipation holes are opened on both sides of the lower end of the controller body.

[0011] Furthermore, it also includes a clamping assembly, which includes a second spring, a through hole, a connecting plate, and a movable plate. The second spring is fixed at both ends of the insulating sleeve, the through hole is opened on both sides of the insulating sleeve, the connecting plate is inserted into the through hole, the movable plate is fixed at one end of the connecting plate, and the other end of the second spring is fixed at both ends of the movable plate.

[0012] Furthermore, the clamping assembly also includes a groove and an anti-slip pad. The groove is formed at both ends of the insulating sleeve, and the end of the second spring away from the movable plate is fixed in the groove. The anti-slip pad is fixed at the other end of the connecting plate away from the movable plate.

[0013] Furthermore, the connecting plate and the movable plate are insulated transparent plates, and the second spring is an insulated spring.

[0014] This utility model has the following beneficial effects:

[0015] This utility model, through its isolation component, allows all cables to be connected to pass through the insulating sleeve during wiring. The cables are then connected to the terminals in sequence as required. The L-shaped locking blocks in the fixing frame are held by both hands and inserted into the first slot. When the L-shaped locking blocks are released, the first spring extends, and one end of the L-shaped locking block in the first slot is inserted into the second slot. At this time, the insulating sleeve wraps around the outside of the terminal. This design adds a layer of physical isolation to the outside of the terminal, reducing the risk of contact. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the controller structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the insulating sleeve structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connecting plate and movable plate structure of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 10. Controller body; 11. Mounting plate; 12. Heat dissipation holes; 13. Wiring terminals; 20. First slot; 21. Second slot; 22. Insulating sleeve; 23. Fixing frame; 24. First spring; 25. L-shaped locking block; 30. Groove; 31. Second spring; 32. Through hole; 33. Anti-slip pad; 34. Connecting plate; 35. Movable plate. Detailed Implementation

[0023] 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.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-3 This utility model is a controller suitable for switching between PLCs, comprising:

[0026] The controller includes a controller body 10 and wiring terminals 13, with the wiring terminals 13 fixed on both sides of the controller body 10.

[0027] The controller also includes a mounting plate 11 and heat dissipation holes 12. The mounting plate 11 is fixed to the lower end of the controller body 10, and the heat dissipation holes 12 are opened on both sides of the lower end of the controller body 10.

[0028] The controller body 10 replaces the traditional relay control circuit to realize functions such as logic control, sequential control, timing / counting control of machinery or production processes. The mounting plate 11 is used to fix the controller body 10, the heat dissipation hole 12 facilitates heat dissipation of the controller body 10, and the wiring terminal 13 is used for wiring.

[0029] The isolation assembly includes a first slot 20, an insulating sleeve 22, a fixing frame 23, a first spring 24, and an L-shaped locking block 25. The first slot 20 is opened on both sides of the controller body 10. The insulating sleeve 22 is sleeved on the outside of the wiring terminal 13. The fixing frame 23 is fixed to both ends of the insulating sleeve 22. One end of the L-shaped locking block 25 is inserted into the fixing frame 23, and the other end is inserted into the first slot 20. The two ends of the first spring 24 are respectively fixed to the sides of the two L-shaped locking blocks 25.

[0030] The isolation assembly also includes a second slot 21, which is located at the upper and lower ends inside the first slot 20, and the front end of the L-shaped card block 25 is inserted into the second slot 21;

[0031] The fixing frame 23, the first spring 24, and the L-shaped locking block 25 are all made of plastic.

[0032] The first slot 20 and the second slot 21 serve to connect and limit the L-shaped card block 25. The insulating sleeve 22 serves to provide insulation and isolation. The fixed frame 23 serves to provide support. The first spring 24 has a telescopic function.

[0033] Working principle:

[0034] When wiring, pass all the cables that need to be connected through the insulating sleeve 22, and connect the cables to the terminal block 13 in sequence as required. Hold the L-shaped clip 25 in the fixing frame 23 with both hands, insert the L-shaped clip 25 into the first slot 20, release the L-shaped clip 25, the first spring 24 extends, and the end of the L-shaped clip 25 located in the first slot 20 is inserted into the second slot 21. Push the insulating sleeve 22 forcefully to make it fit against the controller body 10. At this time, the insulating sleeve 22 is wrapped around the outside of the terminal block 13.

[0035] This step adds a layer of physical isolation to the outside of the terminal block 13, reducing the risk of contact failure.

[0036] Please see Figure 3-4 This embodiment, based on the above embodiments, further includes:

[0037] The clamping assembly includes a second spring 31, a through hole 32, a connecting plate 34, and a movable plate 35. The second spring 31 is fixed at both ends of the insulating sleeve 22, the through hole 32 is opened on both sides of the insulating sleeve 22, the connecting plate 34 is inserted into the through hole 32, the movable plate 35 is fixed at one end of the connecting plate 34, and the other end of the second spring 31 is fixed at both ends of the movable plate 35.

[0038] The clamping assembly also includes a groove 30 and an anti-slip pad 33. The groove 30 is formed at both ends of the insulating sleeve 22, and the end of the second spring 31 away from the movable plate 35 is fixed in the groove 30. The anti-slip pad 33 is fixed at the other end of the connecting plate 34 away from the movable plate 35.

[0039] The connecting plate 34 and the movable plate 35 are insulating transparent plates, and the second spring 31 is an insulating spring;

[0040] The groove 30 is used to install the second spring 31, which has a telescopic function. The through hole 32 facilitates the movement of the connecting plate 34. The anti-slip pad 33 can slip when the cable is pinched. The connecting plate 34 serves as a connector. The movable plate 35 is used to press the connecting plate 34.

[0041] Working principle:

[0042] When the controller body 10 needs to be repaired or replaced, pinch the L-shaped clip 25 and pull it outward to remove the insulating sleeve 22. Loosen all the fixing screws on the terminal block 13, press the movable plates 35 at the upper and lower ends of the insulating sleeve 22, so that the connecting plate 34 moves into the insulating sleeve 22 along the through hole 32. While the connecting plate 34 moves, it drives the anti-slip pad 33 to clamp all the cables and pull the cables outward, which makes it easy to pull out the cables in one go, saving time and effort.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A controller suitable for switching between PLCs, characterized in that, include: The controller includes a controller body (10) and wiring terminals (13), the wiring terminals (13) being fixed on both sides of the controller body (10); The isolation assembly includes a first slot (20), an insulating sleeve (22), a fixing frame (23), a first spring (24), and an L-shaped locking block (25). The first slot (20) is located on both sides of the controller body (10). The insulating sleeve (22) is fitted on the outside of the wiring terminal (13). The fixing frame (23) is fixed at both ends of the insulating sleeve (22). One end of the L-shaped locking block (25) is inserted into the fixing frame (23), and the other end is inserted into the first slot (20). The two ends of the first spring (24) are respectively fixed to the sides of the two L-shaped locking blocks (25).

2. A controller suitable for switching between PLCs according to claim 1, characterized in that: The isolation component also includes a second slot (21), which is located at the upper and lower ends inside the first slot (20), and the front end of the L-shaped card block (25) is inserted into the second slot (21).

3. A controller suitable for switching between PLCs according to claim 1, characterized in that: The fixing frame (23), the first spring (24) and the L-shaped block (25) are all made of plastic.

4. A controller suitable for switching between PLCs according to claim 1, characterized in that: The controller also includes a mounting plate (11) and heat dissipation holes (12). The mounting plate (11) is fixed to the lower end of the controller body (10), and the heat dissipation holes (12) are opened on both sides of the lower end of the controller body (10).

5. A controller suitable for switching between PLCs according to claim 1, characterized in that: It also includes a clamping assembly, which includes a second spring (31), a through hole (32), a connecting plate (34) and a movable plate (35). The second spring (31) is fixed at both ends of the insulating sleeve (22), the through hole (32) is opened on both sides of the insulating sleeve (22), the connecting plate (34) is inserted into the through hole (32), the movable plate (35) is fixed at one end of the connecting plate (34), and the other end of the second spring (31) is fixed at both ends of the movable plate (35).

6. A controller suitable for switching between PLCs according to claim 5, characterized in that: The clamping assembly also includes a groove (30) and an anti-slip pad (33). The groove (30) is formed at both ends of the insulating sleeve (22), and the end of the second spring (31) away from the movable plate (35) is fixed in the groove (30). The anti-slip pad (33) is fixed at the other end of the connecting plate (34) away from the movable plate (35).

7. A controller suitable for switching between PLCs according to claim 5, characterized in that: The connecting plate (34) and the movable plate (35) are insulating transparent plates, and the second spring (31) is an insulating spring.

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