Anti-interference industrial controller
By using high conductivity, low magnetic resistance electromagnetic shielding materials and compression structures in PLC controllers, the problems of inconvenient connection of signal lines and electromagnetic interference in traditional PLC controllers are solved, and fast and reliable signal lines connection and anti-interference performance are achieved, improving the stability and safety of industrial control systems.
Patent Information
- Application Number
- CN202422370334.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Traditional PLC industrial controllers have problems such as inconvenient operation, poor signal contact, and electromagnetic interference during signal line connection, resulting in low wiring efficiency and poor system stability.
The spacer and terminal seat made of electromagnetic shielding material with high conductivity and low magnetoresistance is combined with the compression structure and anti-miss insertion design to achieve quick connection and prevent electromagnetic interference, ensuring accurate insertion and stable transmission of signal lines.
Improve wiring efficiency, prevent signal wire from being misplugged, reduce the impact of electromagnetic interference, and ensure the stable operation and reliability of the PLC control system.
Smart Images
Figure CN223124294U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of PLC, and particularly relates to an anti-interference industrial controller. Background Art
[0002] A programmable logic controller (PLC) is a digital computing operation electronic system designed specifically for use in industrial environments. It uses a programmable memory to store instructions for performing operations such as logical operations, sequential control, timing, counting, and arithmetic operations internally, and controls various types of mechanical equipment or production processes through digital or analog inputs and outputs.
[0003] In the process of connecting signal lines of traditional PLC industrial controllers, the signal line terminals are generally fixed to the wiring terminals by tightening screws. Although the structure is relatively simple, with the improvement of industrial automation, the number of signal lines that the PLC controller needs to process has increased sharply, resulting in a very crowded wiring terminal area. The traditional single-screw tightening method is extremely inconvenient to operate in a limited wiring space, which not only affects the wiring efficiency, but also may cause poor signal contact or damage due to improper operation, thereby affecting the stability and reliability of the entire control system. In addition, the dense wiring layout is prone to signal line errors and electromagnetic interference, which has an adverse impact on the operation of the PLC. Therefore, the utility model proposes an anti-interference industrial controller, which has a simple structure, quickly connects and fixes the signal line wiring ends, improves work efficiency; at the same time, prevents signal line errors and effectively resists the influence of electromagnetic interference on the PLC control system.
[0004] In response to the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model
[0005] To achieve the above object, the utility model provides the following technical solution: an anti-interference industrial controller, including a PLC controller body, a plurality of wiring terminals are installed on the PLC controller body, the wiring terminals include a terminal seat, mounting cavities are uniformly arranged on the terminal seat, a conductor is installed inside the mounting cavity, a separator is fixed between adjacent mounting cavities, a crimping surface is arranged at the top of the conductor, a pressing structure is arranged at the side of the terminal seat where the conductor in the mounting cavity is located, and an anti-misinsertion structure is arranged between the other side of the terminal seat where the conductor in the mounting cavity is located and the corresponding signal line plug. The pressing structure includes a pressing member, the pressing member is rotatably connected to the separator, a return spring is fixed at the bottom of one end of the pressing member inside the mounting cavity, and the other end of the pressing member abuts against the crimping surface of the conductor through the return spring.
[0006] As a preferred technical solution of the utility model, the separator and the terminal seat are of an integrally formed structure.
[0007] As a preferred technical solution of the present utility model, the terminal block and the spacer are made of an electromagnetic shielding material with high conductivity and low magnetic resistance.
[0008] As a preferred technical solution of the present utility model, the anti-misinsertion structure includes, but is not limited to, interfaces with different shapes or sizes and corresponding signal line plugs, and the interfaces are opened on the side of the terminal block located on the other side of the conductor in the installation cavity.
[0009] As a preferred technical solution of the present utility model, a visual identification is provided on the end face of the terminal block located at the top of the installation cavity.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. At the same time, through the application of the pressing structure, the wiring end of the signal line is quickly connected and fixed, significantly shortening the wiring time and improving the work efficiency; the anti-misinsertion design avoids the problem of misinsertion of the signal line; the terminal block made of electromagnetic shielding material effectively resists the influence of electromagnetic interference on the PLC control system. The visual identification and layout make the wiring process more intuitive and simple; the overall design optimization ensures the stable operation of the PLC industrial controller in a complex industrial environment, improving the reliability and safety of the industrial automation control system. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:
[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0013] Figure 2 is a schematic diagram of the internal structure of the installation cavity of the terminal block in the present utility model;
[0014] In the figure: 1, PLC controller body; 2, wiring terminal; 3, terminal block; 4, installation cavity; 5, conductor; 6, spacer; 7, crimping surface; 8, pressing member; 9, return spring; 10, interface; 11, visual identification. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the 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.
[0016] Embodiment
[0017] Please refer to Figure 1-2 , the present utility model provides the following technical solutions: An anti-interference industrial controller includes a PLC controller body 1. On the PLC controller body 1, a plurality of wiring terminals 2 are installed. These wiring terminals 2 are used to connect external devices or signal sources to ensure the transmission and reception of information. Each wiring terminal 2 includes a terminal block 3, which is a basic structure for supporting and fixing other components. A plurality of mounting cavities 4 are evenly arranged on the terminal block 3. Inside the mounting cavity 4, a conductor 5 is installed and fixed, that is, a metal component responsible for transmitting electrical signals. To enhance the anti-interference performance, a spacer 6 is fixed between adjacent mounting cavities 4. These spacers 6 can effectively isolate the electromagnetic interference between adjacent conductors 5 and improve the signal transmission quality. The top end of the conductor 5 is provided with a crimping surface 7, which is designed to make a reliable connection with the transmission end of the signal line. Through the crimping surface 7, it can be ensured that there is close contact between the signal line plug and the conductor 5, thereby reducing signal loss and interference. To further ensure the reliability of the connection, a pressing structure is provided at one end of the terminal block 3. The structure includes a pressing member 8 that can be rotatably connected to the spacer 6. When it is necessary to connect the signal line plug, the pressing member 8 will automatically abut against the crimping surface 7 of the conductor 5 under the action of the return spring 9, thereby realizing reliable pressing of the signal line plug. To prevent the occurrence of misinsertion operations, an anti-misinsertion structure is provided between the other side of the terminal block 3 and the corresponding signal line plug. This structure can ensure that only signal line plugs that meet specific specifications and shapes can be correctly inserted into the corresponding mounting cavity 4, thereby avoiding equipment damage or signals caused by misinsertion.
[0018] In order to absorb and reflect the surrounding electromagnetic radiation and reduce the influence of electromagnetic interference on the internal circuit of the PLC, in this embodiment, as a preferred technical solution of the present utility model, the spacer 6 and the terminal block 3 are of an integrally formed structure, and the terminal block 3 and the spacer 6 are made of an electromagnetic shielding material with high conductivity and low magnetic resistance.
[0019] In order to ensure the connection accuracy, in this embodiment, as a preferred technical solution of the present utility model, the anti-misinsertion structure includes, but is not limited to, interfaces 10 with different shapes or sizes and corresponding signal line plugs, and the interfaces 10 are opened on the terminal block 3 on the other side of the conductor 5 in the mounting cavity 4.
[0020] In order to facilitate the smooth and orderly connection path, in this embodiment, as a preferred technical solution of the present utility model, a visual identification 11 is provided on the end face of the terminal block 3 at the top of the mounting cavity 4.
[0021] In summary, by means of the above technical solution of the present utility model, the conductor 5 is electrically connected to components such as the central processor and memory inside the PLC controller body 1. During installation, it is necessary to first press the bottom of the pressing member 8, where a return spring 9 is installed, and deform it by external pressure. Subsequently, the signal wire transmission end of the terminal block 3 equipped with a mating connector corresponding to the interface 10 is accurately inserted from the opening of the interface 10 to ensure that the wiring end of the signal wire is accurately placed on the crimping surface 7 of the conductor 5. Then, release the pressure at the end of the pressing member 8 to allow the return spring 9 to naturally recover. Its elastic force will push one end of the pressing member 8 upward, and then the other end of the pressing member 8 will tightly cover the front end of the signal wire, forming a stable electrical connection with the crimping surface 7 of the conductor 5.
[0022] Finally, it should be noted that in the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0023] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An anti-interference industrial controller, comprising a PLC controller body (1), a plurality of wiring terminals (2) are installed on the PLC controller body (1), the wiring terminal (2) includes a terminal block (3), the terminal block (3) is evenly provided with installation cavities (4), a conductor (5) is installed inside the installation cavity (4), and it is characterized in that: A spacer (6) is fixed between adjacent installation cavities (4). A crimping surface (7) is provided at the top of the conductor (5). A pressing structure is provided on one side of the terminal block (3) where the conductor (5) of the installation cavity (4) is located. An anti-misinsertion structure is provided between the other side of the terminal block (3) where the conductor (5) of the installation cavity (4) is located and the corresponding signal line plug. The pressing structure includes a pressing member (8). The pressing member (8) is rotatably connected to the spacer (6). A return spring (9) is fixed at the bottom of one end of the pressing member (8) inside the installation cavity (4). The other end of the pressing member (8) abuts against the crimping surface (7) of the conductor (5) through the return spring (9).
2. The anti-interference industrial controller according to claim 1, wherein: The spacer (6) and the terminal block (3) are of an integrally formed structure.
3. An anti-interference industrial controller according to claim 2, characterized in that: The terminal block (3) and the spacer (6) are made of an electromagnetic shielding material with high conductivity and low magnetic resistance.
4. An anti-interference industrial controller according to claim 1, characterized in that: The anti-misinsertion structure includes, but is not limited to, interfaces (10) with different shapes or sizes and corresponding signal line plugs. The interfaces (10) are opened on the other side of the terminal block (3) where the conductor (5) of the installation cavity (4) is located.
5. An anti-interference industrial controller according to claim 1, characterized in that: A visual identification (11) is provided on the end face of the terminal block (3) at the top of the installation cavity (4).