Anti-electromagnetic interference controller
By using a snap-fit and plug-in design, the problems of low assembly efficiency and stripped screws in existing electromagnetic interference controllers are solved, enabling convenient and stable housing installation and improving assembly efficiency and applicability.
Patent Information
- Application Number
- CN202520401998.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing electromagnetic interference controllers have low assembly efficiency and are prone to screw stripping, affecting ease of use.
The casing is assembled using a snap-fit and plug-in structure, with components such as telescopic blocks, U-shaped top plates, and positioning posts, which avoids stripping screws.
It improves the assembly efficiency of the controller, makes it easy to operate, ensures the stability and applicability of the installation, and avoids the problem of stripped screws.
Smart Images

Figure CN223859421U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of controller technology, specifically an anti-electromagnetic interference controller. Background Technology
[0002] A controller is a device used to control, coordinate, and monitor electrical or mechanical systems. It achieves these functions by receiving input signals and generating output signals. Controllers have a wide range of applications, including robotics, automated production lines, home appliances, transportation, communication equipment, and medical devices.
[0003] The prior art discloses patent application number "CN202121289407.2", which discloses a controller with anti-electromagnetic interference function, including a control end cover. The control end cover includes a control panel, an inner cavity, a magnetic sheet, a protective metal wire, and a side cavity groove. The control panel is fixedly installed on the upper surface of the control end cover. An inner cavity is formed on the inner side of the control end cover. A magnetic sheet is fixedly connected to the top side of the inner cavity. A protective metal wire is fixedly connected to the bottom side of the magnetic sheet. Side cavity grooves are formed at both ends of the bottom side of the control end cover. An outer end shell is fixedly connected to the bottom side of the control end cover. A fixed end is fixedly connected to the outer side of the outer end shell. The fixed end is triangular in shape and the outer corner is rounded.
[0004] This controller can only improve the ability to resist electromagnetic interference. However, in actual use, the outer shell of the controller is usually installed and fixed with screws. At this time, it is necessary to use tools to repeatedly tighten the screws, which is cumbersome. Long-term use can easily cause stripping of the screws, which will affect the assembly efficiency of the controller and make it inconvenient to use. Utility Model Content
[0005] The purpose of this invention is to provide an electromagnetic interference-resistant controller to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] An anti-electromagnetic interference controller includes a controller body, a housing snapped onto the front side of the controller body, four L-shaped baffles fixedly connected to the front side of the controller body, a limiting plate for fixing the housing snapped onto one side of each of the four L-shaped baffles, and telescopic blocks slidably installed at both ends of the housing.
[0008] Two telescopic blocks are connected to the outer shell in an array with connecting springs. Four L-shaped mounting bases are fixedly installed at the bottom of the controller body. L-shaped rubber strips are fixedly connected inside the four L-shaped mounting bases. Circuit boards are fixedly connected inside the four L-shaped mounting bases by screws. A U-shaped top plate for fixing the outer shell is snapped onto the upper side of the controller body. Grooves are opened at both ends of the outer shell. Four positioning posts are fixedly installed on one side of the controller body.
[0009] Preferably, a first side plate is fixedly connected to the upper side of the controller body, and a second side plate is fixedly connected to the lower side of the controller body. A double-ended lead screw is rotatably connected between the first side plate and the second side plate. Two symmetrically arranged horizontal plates are threaded onto the outer surface of the double-ended lead screw. The lower side of the double-ended lead screw passes through the second side plate and extends to the lower side of the second side plate. A handwheel is fixedly connected to the lower side of the double-ended lead screw.
[0010] Preferably, two connecting rods are fixedly installed inside each of the two horizontal plates, and mounting plates are slidably engaged on the outer surfaces of the four connecting rods. Connecting springs are fixedly connected between the four mounting plates and the horizontal plates. Retaining bolts are threadedly connected to the rear sides of the four mounting plates. Two limiting rods are fixedly provided between the first side plate and the second side plate, and the outer surfaces of the two limiting rods are slidably connected to the interior of the horizontal plates.
[0011] Preferably, both ends of the controller body are provided with through slots, which are adapted to the telescopic blocks, and one side of the telescopic block is engaged with both ends of the controller body through the slots.
[0012] Preferably, one side of the limiting plate passes through the L-shaped baffle and extends to the other side of the L-shaped baffle. Two filter plates are fixedly installed inside the controller body. Two slots are opened on the upper side of the housing, and the slots are located inside the slots.
[0013] Preferably, four positioning grooves are provided on the rear side of the outer shell, the positioning grooves are adapted to the positioning posts, and the outer surface of the positioning posts is engaged with the rear side of the outer shell through the positioning grooves.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model uses two telescopic blocks, a U-shaped top plate and a positioning post to position the outer shell. This plug-in method is convenient to assemble the outer shell, saves time and effort, and eliminates the worry of stripped screws, which helps to improve the assembly efficiency of the controller.
[0016] 2. This utility model allows for flexible adjustment and movement of four mounting plates, followed by stable positioning of the mounting plates. This allows for flexible adjustment of the four mounting plates, making it easy to fix the controller to the wall and ensuring the applicability of the controller during installation. Attached Figure Description
[0017] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a utility model Figure 1 Installation diagram of the controller body and casing;
[0020] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of the telescopic block and connecting spring 1;
[0021] Figure 4 This is a utility model Figure 3 Schematic diagram of the inner and outer shell structure;
[0022] Figure 5 This is a utility model Figure 2 Installation diagram of the U-shaped top plate and positioning column;
[0023] Figure 6 This is a utility model Figure 1 Installation diagram of the middle horizontal plate and mounting plate;
[0024] The attached figures are labeled as follows:
[0025] 1. Controller body; 2. Housing; 3. L-shaped mounting base; 4. Circuit board; 5. L-shaped rubber strip; 6. Screw; 7. Filter plate; 8. U-shaped top plate; 9. Telescopic block; 10. Connecting spring one; 11. Groove; 12. Positioning post; 14. First side plate; 15. Double-ended lead screw; 16. Second side plate; 17. Horizontal plate; 18. Connecting rod; 19. Mounting plate; 20. Connecting spring two; 21. Stabilizing bolt; 22. Limiting rod; 23. Handwheel; 24. Slot; 25. Positioning groove; 26. Slot; 27. L-shaped baffle; 28. Limiting plate. Detailed Implementation
[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figures 1 to 6As shown, an anti-electromagnetic interference controller includes a controller body 1, a housing 2 snapped onto the front side of the controller body 1, and four L-shaped baffles 27 fixedly connected to the front side of the controller body 1 respectively. The L-shaped baffles 27 can be used to fix the housing 2, making the housing 2 more stable and reliable. Each of the four L-shaped baffles 27 has a limiting plate 28 snapped onto one side for fixing the housing 2, and telescopic blocks 9 are slidably installed at both ends of the housing 2.
[0028] Two telescopic blocks 9 are connected to the outer shell 2 by a series of connecting springs 10. By pressing the two elastic telescopic blocks 9, the two telescopic blocks 9 can be compressed, making it easy to remove the outer shell 2. It is easy to use. Four L-shaped mounting bases 3 are fixedly installed at the bottom of the controller body 1. L-shaped rubber strips 5 are fixedly connected inside the four L-shaped mounting bases 3. Circuit boards 4 are fixedly connected inside the four L-shaped mounting bases 3 by screws 6. The L-shaped rubber strips 5 can protect and clamp the circuit boards 4 around its perimeter to ensure the safety of the circuit boards 4. The four L-shaped mounting bases 3 can limit the circuit boards 4 and make the circuit boards 4 more securely installed. A U-shaped top plate 8 for fixing the outer shell 2 is snapped on the upper side of the controller body 1. Grooves 11 are opened at both ends of the outer shell 2. Four positioning posts 12 are fixedly installed on one side of the controller body 1.
[0029] A first side plate 14 is fixedly connected to the upper side of the controller body 1, and a second side plate 16 is fixedly connected to the lower side of the controller body 1. A double-ended lead screw 15 is rotatably connected between the first side plate 14 and the second side plate 16. Two symmetrically arranged horizontal plates 17 are threadedly connected to the outer surface of the double-ended lead screw 15. The lower side of the double-ended lead screw 15 passes through the second side plate 16 and extends to the lower side of the second side plate 16. A handwheel 23 is fixedly connected to the lower side of the double-ended lead screw 15.
[0030] Two connecting rods 18 are fixedly installed inside each of the two horizontal plates 17. Mounting plates 19 are slidably engaged on the outer surfaces of the four connecting rods 18. Connecting springs 20 are fixedly connected between the four mounting plates 19 and the horizontal plates 17. Stabilizing bolts 21 are threadedly connected to the rear sides of the four mounting plates 19. Two limiting rods 22 are fixedly provided between the first side plate 14 and the second side plate 16. The outer surfaces of the two limiting rods 22 are slidably connected to the interior of the horizontal plates 17. The two limiting rods 22 can guide and limit the movement trajectory of the two horizontal plates 17, allowing the two horizontal plates 17 to move and adjust the mounting plates 19.
[0031] Both ends of the controller body 1 are provided with through slots 24, which are adapted to the telescopic block 9. One side of the telescopic block 9 is engaged with both ends of the controller body 1 through the slots 24.
[0032] One side of the limiting plate 28 passes through the L-shaped baffle 27 and extends to the other side of the L-shaped baffle 27. Two filter plates 7 are fixedly installed inside the controller body 1. The filter plates 7 can play a role in heat dissipation and dust prevention, making it difficult for dust to enter the inside of the controller. Two slots 26 are opened on the upper side of the outer shell 2. The slots 26 are located inside the slots 26.
[0033] Four positioning slots 25 are provided on the rear side of the outer casing 2. The positioning slots 25 are adapted to the positioning posts 12. The outer surface of the positioning posts 12 is engaged with the rear side of the outer casing 2 through the positioning slots 25.
[0034] The working principle of the electromagnetic interference-resistant controller provided by this utility model is as follows:
[0035] By pressing the two telescopic blocks 9 with connecting springs 10 installed at the outer shell 2, the two elastic telescopic blocks 9 can retract into the groove 11. Then, the outer shell 2 is directly snapped into the inside of the controller body 1. At this time, the two elastic telescopic blocks 9 can be released from their limit and extend to snap into the slot 24 of the controller body 1. Then, the U-shaped top plate 8 is inserted into the inside of the controller body 1 and the outer shell 2 to further position the outer shell 2. Then, the four limit plates 28 are pushed to securely position the outer shell 2. At the same time, the four positioning posts 12 will also strengthen the installation of the outer shell 2. This method of assembling the outer shell 2 by plugging is convenient, time-saving and labor-saving, and there is no need to worry about the screws 6 stripping, which helps to improve the assembly efficiency of the controller.
[0036] By turning the handwheel 23, the double-ended lead screw 15 is driven to rotate. At this time, the two horizontal plates 17 on the double-ended lead screw 15 can move towards each other or relative to each other, so as to drive the four mounting plates 19 to move up and down to adjust to different installation positions. Then, the mounting plate 19 with the connecting spring 20 is moved on the connecting rod 18, so that the mounting plate 19 can move left and right to adjust. Then, the fixing bolt 21 is turned to lock the mounting plate 19 to ensure the stability of the mounting plate 19. In this way, the four mounting plates 19 can be flexibly adjusted to facilitate fixing the controller to the wall and ensure the applicability of the controller during installation.
[0037] 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 illustrative of the principles of this 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.
Claims
1. An electromagnetic interference resistant controller comprising a controller body (1), characterized in that: The front side of the controller body (1) is clamped with a shell (2), the front side of the controller body (1) is fixedly connected with four L-shaped baffles (27) respectively, one side of four L-shaped baffles (27) is clamped with a limiting clamping plate (28) for fixing the shell (2), both ends of the shell (2) are slidably installed with telescopic blocks (9); Two telescopic blocks (9) and the shell (2) are arrayedly connected with connecting springs (10), the bottom of the controller body (1) is fixedly installed with four L-shaped mounting seats (3) respectively, the interiors of four L-shaped mounting seats (3) are fixedly connected with L-shaped rubber strips (5), the interiors of four L-shaped mounting seats (3) are fixedly connected with circuit boards (4) through screws (6), the upper side of the controller body (1) is clamped with a U-shaped top plate (8) for fixing the shell (2), both ends of the shell (2) are provided with grooves (11), one side of the interior of the controller body (1) is fixedly provided with four positioning columns (12).
2. The electromagnetic interference resistant controller of claim 1, wherein, The upper side of the controller body (1) is fixedly connected with a first side plate (14), the lower side of the controller body (1) is fixedly connected with a second side plate (16), the first side plate (14) and the second side plate (16) are rotatably connected with a double-head screw rod (15), the outer surface of the double-head screw rod (15) is threadedly connected with two symmetrical transverse plates (17), the lower side of the double-head screw rod (15) penetrates through the second side plate (16) and extends to the lower side of the second side plate (16), and the lower side of the double-head screw rod (15) is fixedly connected with a hand wheel (23).
3. The electromagnetic interference resistant controller of claim 2, wherein, The interiors of two transverse plates (17) are fixedly installed with two connecting rods (18), the outer surfaces of four connecting rods (18) are slidably clamped with mounting plates (19), four mounting plates (19) and the transverse plates (17) are fixedly connected with connecting springs (20), the rear sides of four mounting plates (19) are threadedly connected with stable bolts (21), the first side plate (14) and the second side plate (16) are fixedly provided with two limiting rods (22), and the outer surfaces of two limiting rods (22) are slidably connected with the interiors of the transverse plates (17).
4. The electromagnetic interference resistant controller of claim 1, wherein, Both ends of the controller body (1) are provided with through clamping grooves (24), the clamping grooves (24) are matched with the telescopic blocks (9), and one side of the telescopic blocks (9) is clamped with both ends of the controller body (1) through the clamping grooves (24).
5. The electromagnetic interference resistant controller of claim 1, wherein, One side of the limiting clamping plate (28) penetrates through the L-shaped baffle (27) and extends to the other side of the L-shaped baffle (27), two filter plates (7) are fixedly installed in the controller body (1), two insertion grooves (26) are formed in the upper side of the shell (2), and the insertion grooves (26) are located in the interiors of the insertion grooves (26).
6. The electromagnetic interference resistant controller of claim 1, wherein, Four positioning grooves (25) are formed in the rear side of the shell (2), the positioning grooves (25) are matched with the positioning columns (12), and the outer surfaces of the positioning columns (12) are clamped with the rear side of the shell (2) through the positioning grooves (25).
Citation Information
Patent Citations
Controller with anti-electromagnetic interference function
CN215421470U