Shielding assembly and industrial control device

Abstract

The utility model discloses a shielding assembly and industrial control equipment relates to electromagnetic shielding technical field, a shielding assembly is applied to industrial control equipment, and industrial control equipment includes wiring terminal, terminal base, control panel and metal installation backplate, and wiring terminal, terminal base, control panel and metal installation backplate between electric connection, and metal installation backplate ground connection, and the shielding assembly includes: shielding piece, shielding piece is detachably inserted in wiring terminal, and shielding piece has the clamping space of clamping shielded cable, and the adapter piece is set up in wiring terminal, and the adapter piece is electrically connected with control panel, and when shielding piece is inserted in wiring terminal, shielding piece is electrically connected with adapter piece, and the ground pin is electrically connected control panel, and the ground pin is electrically connected with adapter piece, and when shielding piece is inserted in wiring terminal, shielded cable is connected through shielding piece, adapter piece and ground pin ground connection. The utility model discloses technical scheme, has improved the flexibility of shielding assembly arrangement.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding technology, and in particular to a shielding component and industrial control equipment. Background Technology

[0002] With the increasing integration and high frequency of electronic devices, electromagnetic interference (EMI) has become increasingly prominent, posing a severe challenge to system stability and reliability. To effectively suppress EMI, electromagnetic shielding technology is widely used in various electronic devices. In practical applications, signal line shielding layers typically need to be grounded to effectively discharge interference signals, thereby improving overall electromagnetic compatibility performance. Currently, common shielding components on the market are usually externally mounted on the main cabinet, preventing users from flexibly choosing whether shielding is needed based on actual application scenarios, and making it difficult to meet diverse layout requirements. Utility Model Content

[0003] The main purpose of this utility model is to provide a shielding component and industrial control equipment, which aims to improve the flexibility of shielding component arrangement.

[0004] To achieve the above objectives, this utility model provides a shielding component for use in industrial control equipment, which includes wiring terminals, terminal bases, a control board, and a metal mounting backplate.

[0005] The control board is mounted on the metal mounting backplate, the terminal base is mounted on the end of the control board away from the metal mounting backplate, and the wiring terminal is mounted on the end of the terminal base away from the control board. The wiring terminal is used to connect a shielded cable. The wiring terminal, the terminal base, the control board, and the metal mounting backplate are electrically connected. The metal mounting backplate is grounded. The shielding assembly includes:

[0006] A shielding component, which is detachably plugged into the terminal block, and has a clamping space for holding the shielded cable;

[0007] An adapter, wherein the adapter is disposed at the terminal block and is electrically connected to the control board; and,

[0008] A grounding pin is electrically connected to the control board; the grounding pin is electrically connected to the adapter; when the shield is plugged into the terminal block, the shielded cable is grounded through the shield, the adapter, and the grounding pin.

[0009] In one embodiment, the shielding component includes a shielding bracket and a shielding clip connected together. The shielding bracket is detachably inserted into the terminal block. The shielding clip and the shielding bracket cooperate to form the clamping space and are electrically connected to the shielded cable.

[0010] In one embodiment, the shielding bracket includes a shielding top plate and a shielding insert plate. The shielding clip is connected to and cooperates with the shielding top plate to form the clamping space. The terminal block is provided with a slot, and the slot and the shielding insert plate cooperate to detachably insert the shielding bracket into the terminal block.

[0011] In one embodiment, the shielding plate has barbs on both sides, and when the shielding plate is inserted into the slot in a direction away from the control board, the barbs abut against the inner surface of the wiring terminal.

[0012] And / or, the shielding bracket further includes a shielding side plate, which is connected to the shielding top plate and bent toward the control plate.

[0013] In one embodiment, the shielding top plate is provided with a limiting slot, and the shielding clamp is held in the limiting slot.

[0014] In one embodiment, the slot has a limiting structure inside, which restricts the position of the shielding plate.

[0015] In one embodiment, the limiting structure includes a first limiting rib and a second limiting rib, wherein the first limiting rib abuts against two adjacent sides of the shielding insert, and the second limiting rib abuts against two other adjacent sides of the shielding insert.

[0016] In one embodiment, the adapter includes an adapter conductive body and a first elastic conductive clip connected to the adapter conductive body, the first elastic conductive clip being used to abut against the shielding member.

[0017] In one embodiment, the elastic conductive clip includes a first clip and a second clip disposed opposite to each other, the first clip and the second clip being close to or far apart to disassemble or clamp the shield.

[0018] In one embodiment, the adapter further includes a flange, which is bent and connected to the adapter conductive body. The flange has a positioning recess for engaging with a positioning protrusion provided on the terminal block.

[0019] In one embodiment, the adapter further includes a plug-in connection portion, which is bent and connected to the adapter conductive body. The plug-in connection portion is provided with a second elastic conductive clip, and the grounding pin is plugged into the second elastic conductive clip.

[0020] In one embodiment, the metal mounting backplate and the control board are fixed together by a first fastener, and the first fastener and the grounding circuit of the control board are electrically connected.

[0021] To achieve the above objectives, this utility model provides an industrial control device, which includes an electrical connector, a functional module electrically connected to the electrical connector, and the shielding component described above. The terminal block and the electrical connector are electrically connected through the internal circuit of the control board.

[0022] In one embodiment, the electrical connectors are provided in multiple forms, and the multiple electrical connectors are used to plug into corresponding functional modules.

[0023] The technical solution of this application, by pre-setting an adapter in the terminal block, allows for detachable connection between the shielding component and the terminal block. The terminal block is grounded to the control board via a grounding pin, enabling each terminal block to have the capability for future expansion of shielding functionality. Users can flexibly configure and install shielding components and shielded cables according to specific application scenarios. The shielding component only needs to be installed in place to automatically or through simple operations (such as screw tightening or snap-fit ​​contact) form a reliable electrical connection with the adapter, simplifying the grounding process. It eliminates the need to find grounding points on-site or perform complex grounding wiring, reducing installation difficulty and the skill requirements for operators, and improving assembly efficiency. It is understood that the shielding component can be used as an optional feature without affecting the basic electrical connection function of the original terminal block, improving the modular design level and versatility of industrial control equipment. This effectively alleviates the problem of poor flexibility in the use of existing shielding components and reduces structural redundancy, cost waste, and space occupation in scenarios where shielding is not required. Moreover, the pre-set adapter is integrated inside the terminal block or in a specific location, without occupying excessive additional space and having minimal impact on the layout of the original terminal block. It can better adapt to the shielding assembly requirements of terminal blocks in different locations and modules within industrial control equipment. Specifically, through the cooperation of the adapter, grounding pin, and shielding component, a grounding loop can be formed between the shielding component, the shielding layer of the shielded cable, the adapter, the grounding pin, the control board, and the metal mounting backplate. The grounding loop has a simple structure, high reliability, and more convenient grounding operation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of an embodiment of the industrial control equipment of this utility model;

[0026] Figure 2 This is a partial structural schematic diagram of an embodiment of the industrial control equipment of this utility model, wherein the functional modules have been hidden;

[0027] Figure 3 for Figure 2 Another schematic diagram shows that the shielding and the wiring terminals are separated;

[0028] Figure 4 for Figure 2 A cross-sectional structural diagram;

[0029] Figure 5 for Figure 2 Another cross-sectional structural diagram;

[0030] Figure 6 This is a schematic diagram of the structure of an embodiment of the shielding component of this utility model;

[0031] Figure 7 This is a partial structural schematic diagram of an embodiment of the shielding component of this utility model, wherein the adapter has been hidden;

[0032] Figure 8 This is a schematic diagram of the shielding bracket in an embodiment of the shielding component of this utility model;

[0033] Figure 9 for Figure 8 Another structural diagram;

[0034] Figure 10 for Figure 5 A magnified schematic diagram of part A in the middle section;

[0035] Figure 11 This is a partial exploded structural diagram of an embodiment of the shielding component of this utility model.

[0036] Explanation of icon numbers:

[0037] 100. Terminal block; 110. Slot; 120. Limiting structure; 121. First limiting rib; 122. Second limiting rib; 200. Control board;

[0038] 300. Shielding assembly; 310. Shielded cable; 320. Shielding component; 321. Shielding bracket; 3211. Shielding top plate; 3212. Shielding insert plate; 32121. Insert plate connecting part; 32122. Insert plate plug-in part; 3213. Barb; 3214. Shielding side plate; 322. Shielding clip; 3222. Clip body; 3223. Adjustment structure; 32231. Stud; 32232. Adjustment plate; 330. Adapter; 331. Adapter conductive body; 332. First elastic conductive clip; 333. Flanged edge; 334. Positioning recess; 335. Plug-in connection part; 336. Second elastic conductive clip; 700. Metal mounting back plate;

[0039] 400, Terminal base; 500, Functional module; 600, Electrical connector.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] 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 embodiments of the present utility model.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, in the embodiments of this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of the embodiments of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0045] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the embodiments of this utility model.

[0046] To effectively suppress electromagnetic interference, electromagnetic shielding technology is widely used in various electronic devices. In practical applications, signal line shielding layers typically need to be grounded to effectively discharge interference signals, thereby improving overall electromagnetic compatibility performance. Currently, most common electromagnetic shielding components are fixed structures, usually requiring additional shielding components to be added in the field terminal cabinet. However, for multi-module networking systems, the modules have diverse functions, and not every module needs to be connected to shielded signal lines, making the shielding components lack flexibility and scalability. Although a few products have achieved integrated shielding components on the terminal block, problems such as poor contact reliability, complex shielding circuit composition, and a large number of components still exist.

[0047] In view of this, the present invention provides a shielding component and industrial control equipment. By pre-setting an adapter in the terminal block, the shielding bracket and the terminal block are detachably connected. The adapter is pre-grounded to the control board, so that each terminal block has the ability to expand the shielding function in the future. Users can flexibly configure and install shielding components and shielded cables according to specific application scenarios.

[0048] To better understand the above technical solution, the following detailed explanation is provided in conjunction with the accompanying drawings.

[0049] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes a shielding component for use in industrial control equipment. The industrial control equipment includes a terminal block 100, a terminal base 400, a control board 200, and a metal mounting backplate 700. The control board 200 is mounted on the metal mounting backplate 700. The terminal base 400 is mounted on the end of the control board 200 away from the metal mounting backplate 700. The terminal block 100 is mounted on the end of the terminal base 400 away from the control board 200. The terminal block 100 is used to plug in a shielded cable 310. The terminal block 100, the terminal base 400, the control board 200, and the metal mounting backplate 700 are electrically connected. The metal mounting backplate 700 is grounded.

[0050] Specifically, industrial control equipment mainly performs data acquisition, process control, status monitoring, and adjustment of production lines or mechanical equipment to improve production efficiency, ensure product quality, enhance safety, and reduce manual intervention. Industrial control equipment typically includes: a control unit (such as a CPU module) responsible for running the control program; input / output modules (I / O modules) for connecting external sensors and actuators; a communication module supporting various industrial bus protocols (such as Modbus, Profibus, EtherCAT, etc.); a power supply module providing stable power to the system; terminal blocks 100 for electrical connections; and a control board 200 for electrical connections and signal transmission.

[0051] The shielding assembly 300 is used to shield the signal lines of the terminal 100 from interfering electromagnetic signals. The shielding assembly 300 includes a shielding element 320, an adapter 330, and a grounding pin. The shielding element 320 is detachably plugged into the terminal 100 and has a clamping space for holding the shielded cable 310, allowing electrical connection to the shielding layer of the shielded cable 310. The adapter 330 is located on the terminal 100 and is electrically connected to the control board 200. When the shielding element 320 is plugged into the terminal 100, the shielding element 320 and the adapter 330 are electrically connected, and the conductive core of the shielded cable 310 is electrically connected to the terminal 100. The grounding pin is disposed on the terminal base 400 and electrically connected to the control board 200; the grounding pin is electrically connected to the adapter 330; when the shield 320 is plugged into the terminal 100, the shielded cable 310 is grounded through the shield 320, the adapter 330 and the grounding pin.

[0052] Optionally, refer to Figures 2 to 4 The terminal block 100 has a terminal base 400 at its bottom, and the terminal base 400 has a grounding pin. The adapter 330 and the control board 200 are grounded through the grounding pin. Thus, by integrating the grounding pin on the terminal base 400, the adapter 330 can easily and reliably form an electrical connection with the control board 200, thereby providing a stable grounding path for the shielding assembly 300, improving electromagnetic shielding performance, and effectively suppressing the impact of electromagnetic interference on the normal operation of industrial control equipment. Furthermore, it simplifies the electrical connection process between the adapter 330 and the control board 200, eliminating the need for additional grounding wires or soldering operations, improving assembly efficiency and ease of later maintenance.

[0053] Optionally, the grounding pin may not be located on the terminal base 400, as long as a conductive loop is formed between the adapter 330 and the control board 200. In one possible embodiment, the grounding pin may be located on and electrically connected to the control board 220, while also being electrically connected to the adapter 330. Not locating the grounding pin on the terminal base 400 ensures the independence of the terminal base 400, improves its compatibility, facilitates its production, maintenance, and replacement, and reduces production costs.

[0054] Specifically, the control board 200 has a grounding layer. The adapter 330 is pre-fixed to the terminal block 100 by a snap fastener and is electrically connected to the grounding pin, thus achieving grounding conductivity with the control board 200. When the functional module 500 (i.e., the I / O module, usually an analog module) requires electromagnetic shielding of the signal lines, a shielded cable 310 is connected to the corresponding terminal block 100, the enameled wire is stripped, and the shielding layer of the shielded cable 310 is exposed. Then, the shielding component 320 is installed and fixed to the terminal block 100, which can be secured by bolts, snap fasteners, etc. Then, the shielded cable 310 is placed in the clamping space and clamped, and the shielding layer of the shielded cable 310 contacts and becomes electrically conductive with the shielding component 320. Finally, the shielding component 320, the shielding layer of the shielded cable 310, the adapter 330, the grounding pin, the control board 200, and the metal mounting backplate 700 are electrically connected, thus achieving the conduction of the shielded grounding line.

[0055] In this embodiment, by pre-setting an adapter 330 in the terminal block 100, the shield 320 and the terminal block 100 are detachably connected. The adapter 330 is grounded to the control board 200 via a grounding pin, enabling each terminal block 100 to have the capability for future expansion of shielding functionality. Users can flexibly configure and install the shield 320 and shielded cable 310 according to specific application scenarios. The shield 320 only needs to be installed in place to automatically or through simple operations (such as screw tightening or snap-fit ​​contact) form a reliable electrical connection with the adapter 330, simplifying the grounding operation process. It eliminates the need to find a grounding point on-site or perform complex grounding wire wiring, reducing installation difficulty and the skill requirements for operators, and improving assembly efficiency. It is understood that the shield 320 can be used as an optional function without affecting the basic electrical connection function of the original terminal block 100, improving the modular design level and versatility of industrial control equipment, effectively alleviating the problem of poor flexibility in the use of existing shielding components 300, and reducing structural redundancy, cost waste, and space occupation caused in scenarios where shielding is not required. Furthermore, the pre-installed adapter 330 is integrated inside the terminal block 100 or in a specific location, without occupying excessive additional space and having minimal impact on the original layout of the terminal block 100. This allows for better adaptation to the shielding assembly requirements of different locations and modules within industrial control equipment. Additionally, the shielding component 320 has a clamping space for holding the shielded cable 310, enabling a direct and secure electrical connection to the shielding layer of the cable 310. This eliminates the cumbersome soldering, crimping, or installation steps of using additional grounding terminals / lugs found in traditional methods. Specifically, through the cooperation of the adapter 330 and the shielding component 320, a grounding loop can be formed between the shielding component 320, the shielding layer of the shielded cable 310, the adapter 330, the grounding pin, the control board 200, and the metal mounting backplate 700, resulting in high reliability and more convenient grounding operations.

[0056] In one embodiment of this utility model, reference is made to Figure 3 and Figure 6 The shielding component 320 includes a shielding bracket 321 and a shielding clip 322 connected to each other. The shielding bracket 321 is detachably inserted into the terminal block 100. The shielding clip 322 and the shielding bracket 321 cooperate to form the clamping space and are electrically connected to the shielding layer of the shielded cable 310.

[0057] Specifically, the shielding component 320 includes a shielding bracket 321 and a shielding clamp 322. The shielding bracket 321 and the terminal block 100 are detachably connected. When the functional module 500 requires electromagnetic shielding, the shielding bracket 321 can be assembled onto the corresponding terminal block 100. The shielding bracket 321 and the shielding clamp 322 cooperate to form a clamping space. Thus, electrical conductivity with the shielding layer of the shielded cable 310 can be achieved without additional fixing structures, reducing the complexity of the overall structure. It can be understood that by forming a clamping space with the shielding bracket 321 and the shielding clamp 322, shielded cables 310 of different diameters and quantities can be firmly clamped, so that a stable electrical contact is formed between the shielding layer of the shielded cable 310 and the shielding component 320, effectively improving the reliability of electromagnetic shielding. At the same time, the shielding bracket 321 is detachably installed on the terminal block 100, and the shielding component 320 can be flexibly configured according to actual application requirements. It can be quickly installed when shielding is required without affecting the original function of the terminal block 100, improving the modularity and adaptability of the industrial control equipment.

[0058] In one embodiment of this utility model, reference is made to Figure 4 The shielding bracket 321 includes a shielding top plate 3211 and a shielding insert plate 3212 connected to the shielding top plate 3211. The shielding clip 322 is connected to the shielding top plate 3211 and cooperates to form the clamping space. The terminal block 100 is provided with a slot 110. The slot 110 and the shielding insert plate 3212 are inserted and cooperated to detachably insert the shielding clip 322 into the terminal block 100.

[0059] Specifically, the shielding bracket 321 includes a shielding top plate 3211 and a shielding insert plate 3212. The shielding top plate 3211 is connected to the shielding clamp 322, forming a clamping space between them for holding the shielded cable 310. One end of the shielding insert plate 3212 is connected to the shielding top plate 3211, and the other end of the shielding insert plate 3212 is inserted into the terminal block 100. That is, the other end of the shielding insert plate 3212 is inserted into the slot 110 and electrically connected to the adapter 330. This allows for a simple and convenient detachable connection between the shielding bracket 321 and the terminal block 100. Optionally, the shielding insert plate 3212 and the slot 110 are interference-fitted to fix the shielding bracket 321 and the terminal block 100.

[0060] Optionally, refer to Figure 8 The shielding insert 3212 includes an insert connecting part 32121 and an insert plug-in part 32122. The insert connecting part 32121 is connected to the shielding top plate 3211, and the insert plug-in part 32122 is inserted into the slot 110 and electrically connected to the adapter 330. Multiple insert plug-in parts 32122 can be arranged at intervals, and multiple insert plug-in parts 32122 are respectively inserted into the slot 110 and electrically connected to the adapter 330. This can improve the firmness of the shielding insert 3212 and the terminal block 100, as well as the reliability of the electrical connection between the shielding insert 3212 and the adapter 330.

[0061] In one embodiment of this utility model, reference is made to Figure 5 , Figure 7 as well as Figure 10 The shielding insert 3212 has barbs 3213 on both sides. When the shielding insert 3212 is inserted into the slot 110 in a direction away from the control board 200, the barbs 3213 abut against the inner surface of the terminal block 100. It is understood that when the shielding insert 3212 is inserted from the slot of the slot 110, the free end of the barb 3213 is compressed by the slot and can move closer to the shielding insert 3212, causing deformation. When the barb 3213 is fully inserted into the slot 110, it will return to its original shape under the force generated by the deformation, i.e., move away from the shielding insert 3212. At this time, the free end of the barb 3213 protrudes from the side of the shielding insert 3212 and can abut against the inner surface of the terminal block 100, causing interference, thereby preventing the shielding insert 3212 from being arbitrarily pulled out of the slot 110. When it needs to be pulled out, a force is applied to the barb 3213, and the free end of the barb 3213 moves close to the shielding plate 3212 until the barb 3213 can disengage from the slot of the slot 110. Optionally, the fixed end of the barb 3213 is connected to the plate insertion part 32122, and each plate insertion part 32122 can be provided with one barb 3213. It should be noted that the terminal 100 can be provided with a mounting cavity, which communicates with the slot 110. The slot of the insertion part 110 penetrates the top wall of the mounting cavity. In this embodiment, the inner surface of the terminal 100 refers to the top wall of the mounting cavity.

[0062] And / or, refer to Figure 4 and Figure 5The shielding bracket 321 further includes a shielding side plate 3214, which is connected to the shielding top plate 3211 and bent toward the control board 200. It is understood that the shielding side plate 3214 and the shielding insert plate 3212 are located on the same side of the shielding top plate 3211. The end of the shielding insert plate 3212 closest to the shielding top plate 3211, and the shielding top plate 3211 are both connected to the shielding side plate 3214, forming a frame structure. This improves the overall support strength of the shielding bracket 321. Optionally, two shielding side plates 3214 are provided, located at opposite ends of the shielding top plate 3211.

[0063] In one embodiment of this utility model, the shielding top plate 3211 is provided with a clamping and limiting slot, and the shielding clip 322 is clamped within the limiting slot of the shielding top plate 3211. By providing the limiting slot, the shielding clip 322 can be clamped, enabling quick and reliable mechanical fixing and electrical connection between the shielding clip 322 and the shielding top plate 3211, without the need for additional screws or other fasteners, simplifying the assembly process and improving installation efficiency. Optionally, by adjusting the spacing of the limiting slots and selecting a suitable shielding clip 322, a larger number of shielding wires can be clamped, enhancing the versatility and adaptability of the shielding assembly 300, which is beneficial for its widespread application.

[0064] In one embodiment of this utility model, reference is made to Figure 7 The shielding clip 322 includes a clip body 3222 and an adjustment structure 3223 movably connected to the clip body 3222. The adjustment structure 3223 and the shielding top plate 3211 cooperate to form the clamping space with adjustable size.

[0065] Specifically, the shielding clip 322 includes a clip body 3222 and an adjustment structure 3223. The clip body 3222 is connected to the shielding top plate 3211, and a clamping space is formed between the adjustment structure 3223 and the shielding top plate 3211. By adjusting the movement of the adjustment structure 3223, it can move towards or away from the shielding top plate 3211, thereby changing the size of the clamping space. This can meet the fixing requirements of shielded cables 310 with different numbers and diameters. In one embodiment, the first clamp and the second clamp cooperate to form the clip body 3222, and the adjustment structure 3223 is movably connected to the second clamp. Optionally, the adjustment structure 3223 can be slidably connected to the second clamp, and the size of the clamping space can be adjusted by sliding.

[0066] In one embodiment of this utility model, reference is made to Figure 8The adjustment structure 3223 includes a stud 32231 and an adjustment plate 32232 hinged to the stud 32231. The stud 32231 and the clamp body 3222 are threadedly connected. The adjustment plate 32232 can move closer to or further away from the shielding top plate 3211 under the drive of the stud 32231.

[0067] Specifically, the adjustment structure 3223 includes a stud 32231 and an adjustment plate 32232. The stud 32231 is threadedly connected to the top surface (i.e., the second clamping part) of the clamping body 3222. The adjustment plate 32232 is movably disposed on the side of the shielding top plate 3211 facing away from the adapter 330. The end of the stud 32231 facing the shielding top plate 3211 is hinged to the adjustment plate 32232. By rotating the stud 32231, the adjustment plate 32232 can move toward or away from the shielding top plate 3211, thereby adjusting the size of the clamping space.

[0068] In one embodiment of this utility model, reference is made to Figure 7 The slot 110 has a limiting structure 120 inside, which is used to limit the position of the shielding plate 3212. In this way, the shielding plate 3212 can be prevented from shaking in the slot of the terminal 100, displacement can be reduced, and the electrical connection reliability between the shielding plate 3212 and the adapter 330 can be improved.

[0069] Specifically, refer to Figure 7 and Figure 11 The limiting structure 120 includes a first limiting rib 121 and a second limiting rib 122 spaced apart. The first limiting rib 121 abuts against two adjacent sides of the shielding insert plate 3212, and the second limiting rib 122 abuts against two other adjacent sides of the shielding insert plate 3212. This limits the shielding insert plate 3212, i.e., limits the shielding bracket 321 in the X and Y directions, preventing the shielding bracket 321 from loosening due to vibration or being pulled out by external force during operation, thus ensuring the reliability of the shielding grounding contact. Optionally, both the first limiting rib 121 and the second limiting rib 122 are L-shaped structures. In one embodiment, two sets of limiting structures 120 can be symmetrically arranged, with the second limiting ribs 122 of the two sets of limiting structures 120 abutting against each other.

[0070] In one embodiment, refer to Figure 8 and Figure 9The adapter 330 includes an adapter conductive body 331 and a first elastic conductive clip 332 connected to the adapter conductive body 331. The first elastic conductive clip 332 is elastic, and when the shielding member 320 is detachably inserted into the terminal block 100, the first elastic conductive clip 332 can elastically abut against the shielding member 320, improving the reliability of the electrical connection between the shielding member 320 and the adapter 330. Specifically, when the shielding insert 3212 is inserted into the slot 110, the first elastic conductive clip 332 abuts against the shielding insert 3212.

[0071] In one embodiment, the first elastic conductive clip 332 includes a first clip and a second clip disposed opposite to each other, the first clip and the second clip being close to or far apart to disassemble or clamp the shield 320. Specifically, when the shield 320 is connected to the terminal block 100, that is, when the shielding plate 3212 is inserted into the slot 110, the two first clips and the second clip are clamped on opposite sides of the plate insertion portion 32122 of the shielding plate 3212, thus further improving the electrical connection reliability between the shielding bracket 321 and the adapter 330. Moreover, by providing clips on both sides for contact, the contact conduction area can be increased, resulting in better connection stability. Optionally, the first clip and the second clip form flared openings at their ends near the plate connection portion 32121, thus facilitating the insertion of the plate insertion portion 32122 and its clamping and fixing by the first clip and the second clip 332.

[0072] In one embodiment, refer to Figure 8 and Figure 9 The adapter 330 further includes a flange 333, which is bent and connected to the adapter conductive body 331. The flange 333 has a positioning recess 334, which is used to cooperate with the positioning protrusion provided on the terminal block 100. In this way, the positioning protrusion is engaged with the positioning recess 334, which can further improve the firmness of the adapter 330 and the terminal block 100.

[0073] In one embodiment, refer to Figure 8 and Figure 9 The adapter 330 further includes a plug-in connection portion 335, which is bent and connected to the adapter conductive body 331. The plug-in connection portion 335 is provided with a second elastic conductive clip 336, and the grounding pin is plugged into the second elastic conductive clip 336. Thus, by inserting the grounding pin into the second elastic conductive clip 336, an electrical connection between the adapter 330 and the grounding pin can be achieved, making operation simpler and more convenient. Specifically, the structure of the second elastic conductive clip 336 can refer to the structure of the first elastic conductive clip 332, thereby enabling simultaneous contact with both opposite sides of the grounding pin, increasing the contact conductivity area, and improving the stability of the electrical connection.

[0074] In one embodiment of this utility model, reference is made to Figure 2 , Figure 5 as well as Figure 5 The metal mounting backplate 700 and the control board 200 are fixed together by a first fastener. The first fastener is electrically connected to the grounding circuit of the control board 200. Thus, while fixing the control board 200 and the metal mounting backplate 700, the first fastener also grounds the metal mounting backplate 700 and the control board 200, forming a grounding path. The metal mounting backplate 700 is made of conductive metal material. Optionally, the first fastener can be a screw. Optionally, the terminal block 100 and the metal mounting backplate 700 are connected by a second fastener. This allows for simple and convenient fixing of the terminal block 100 and the metal mounting backplate 700 together, preventing displacement of the terminal block 100 and ensuring reliable electrical connection between the terminal block 100 and the terminal base 400. Optionally, the second fastener is a screw.

[0075] In one embodiment of this utility model, the metal mounting backplate 700 is provided with a grounding point, which is electrically connected to a grounding wire. Thus, the grounding routes of different functional modules 500 can be summarized to the metal mounting backplate 700, and then connected to the grounding wire through the grounding point on the metal mounting backplate 700, completing the entire grounding circuit. It can be understood that the grounding path of the shielding component 300 in this embodiment is: shielding clip 322, shielding bracket 321, shielding layer of shielded cable 310, adapter 330, grounding pin of terminal base 400, control board 200, first fastener, and grounding point of metal mounting backplate 700.

[0076] To achieve the above objectives, refer to Figure 1 This utility model embodiment proposes an industrial control device, which includes an electrical connector 600, a functional module 500 electrically connected to the electrical connector 600, and the aforementioned shielding component 300. The terminal block 100 and the electrical connector 600 are electrically connected through the internal circuitry of a control board 200. Specifically, the specific structure of the shielding component 300 is as described in the above embodiment. Since this industrial control device adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0077] In one embodiment of this utility model, multiple electrical connectors 600 are provided, and the multiple electrical connectors 600 are used to plug into corresponding functional modules 500. In this way, multiple functional modules 500 can be connected, and multiple functional modules 500 can share the same metal mounting back plate 700, making the structure simpler.

[0078] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model embodiments. Any equivalent structural transformations made under the technical concept of the present utility model using the description and drawings of the present utility model embodiments, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model embodiments.

Claims

1. A shielding component, used in industrial control equipment, characterized in that, The industrial control equipment includes wiring terminals, terminal bases, control boards, and metal mounting backplates; The control board is mounted on the metal mounting backplate, the terminal base is mounted on the end of the control board away from the metal mounting backplate, and the wiring terminal is mounted on the end of the terminal base away from the control board. The wiring terminal is used to connect a shielded cable. The wiring terminal, the terminal base, the control board, and the metal mounting backplate are electrically connected. The metal mounting backplate is grounded. The shielding assembly includes: A shielding component, which is detachably plugged into the terminal block, and has a clamping space for holding the shielded cable; An adapter, wherein the adapter is disposed at the terminal block and is electrically connected to the control board; and, A grounding pin is electrically connected to the control board; the grounding pin is electrically connected to the adapter; when the shield is plugged into the terminal block, the shielded cable is grounded through the shield, the adapter, and the grounding pin.

2. The shielding assembly as described in claim 1, characterized in that, The shielding component includes a shielding bracket and a shielding clip connected together. The shielding bracket is detachably inserted into the terminal block. The shielding clip and the shielding bracket cooperate to form the clamping space and are electrically connected to the shielded cable.

3. The shielding assembly as described in claim 2, characterized in that, The shielding bracket includes a shielding top plate and a shielding insert plate. The shielding clamp is connected to and cooperates with the shielding top plate to form the clamping space. The terminal block is provided with a slot. The slot and the shielding insert plate cooperate to detachably insert the shielding bracket into the terminal block.

4. The shielding assembly as described in claim 3, characterized in that, The shielding insert is provided with barbs. When the shielding insert is inserted into the slot in a direction away from the control board, the barbs abut against the inner surface of the wiring terminal. And / or, the shielding bracket further includes a shielding side plate, which is connected to the shielding top plate and bent toward the control plate.

5. The shielding assembly as described in claim 3, characterized in that, The shielding top plate is provided with a limiting slot, and the shielding clamp is held in the limiting slot.

6. The shielding assembly as described in claim 3, characterized in that, The slot has a limiting structure inside, which is used to restrict the position of the shielding plate.

7. The shielding assembly as described in claim 6, characterized in that, The limiting structure includes a first limiting rib and a second limiting rib, wherein the first limiting rib abuts against two adjacent sides of the shielding insert, and the second limiting rib abuts against two other adjacent sides of the shielding insert.

8. The shielding assembly as described in claim 1, characterized in that, The adapter includes an adapter conductive body and a first elastic conductive clip connected to the adapter conductive body, the first elastic conductive clip being used for detachably inserting the shielding component.

9. The shielding assembly as described in claim 8, characterized in that, The elastic conductive clip includes a first clip and a second clip disposed opposite to each other, the first clip and the second clip being close to or far apart to disassemble or clamp the shield.

10. The shielding assembly as claimed in claim 8, characterized in that, The adapter also includes a flange, which is bent and connected to the adapter conductive body. The flange has a positioning recess, which is used to cooperate with the positioning protrusion provided on the terminal block.

11. The shielding assembly as claimed in claim 8, characterized in that, The adapter also includes a plug-in connection part, which is bent and connected to the adapter conductive body. The plug-in connection part is provided with a second elastic conductive clip, and the grounding pin is plugged into the second elastic conductive clip.

12. The shielding assembly according to any one of claims 1 to 11, characterized in that, The metal mounting backplate and the control board are fixed together by a first fastener, and the first fastener and the grounding circuit of the control board are electrically connected.

13. An industrial control device, characterized in that, The industrial control equipment includes an electrical connector, a functional module electrically connected to the electrical connector, and a shielding component as described in any one of claims 1 to 12, wherein the terminal block and the electrical connector are electrically connected through the internal circuitry of the control board.

14. The industrial control equipment as described in claim 13, characterized in that, The electrical connector is provided in multiple ways, and the multiple electrical connectors are used to plug into corresponding functional modules.

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