A controller

Abstract

The utility model discloses a kind of controllers, the controller includes: main shell, its inside is formed with containing cavity, and bottom end is equipped with first connecting part, and the cavity wall of containing cavity is formed with guiding limiting part;Base, be equipped with second connecting part on the bottom of main shell, second connecting part is fixed with the bottom of main shell with the cooperation of first connecting part;Main control board, vertically assembled in containing cavity and its bottom end is detachably connected to base, guiding limiting part cooperates with the side of main control board and restricts main control board activity.The controller of the application whole structure is simple, disassembly and assembly can be carried out without tool, and the whole volume of controller is small, effectively reduce the occupation of user cabinet inner space.

Description

Technical Field

[0001] This utility model relates to the field of PLC technology, and in particular to a controller. Background Technology

[0002] A PLC (Programmable Logic Controller) is a digital operating system specifically designed for industrial control applications. It controls the operation of various industrial control equipment through internal logic operations, counting, and other operational instructions. Commonly available PLCs, due to their comprehensive functional requirements and good compatibility, are generally large and complex in structure. In field applications, these PLCs occupy significant space in the industrial control equipment's control cabinet, reducing the utilization rate of the user's cabinet space. Furthermore, their complex structure hinders disassembly and maintenance, making disassembly and assembly very inconvenient. Utility Model Content

[0003] This utility model provides a controller that solves the problems of large size, complex structure, and inconvenient disassembly and assembly of existing PLC controllers.

[0004] In a first aspect, this utility model provides a controller, comprising: a main shell having an internal cavity and a first connecting portion at its bottom end, wherein a guide limiting portion is formed on the cavity wall; a base disposed at the bottom of the main shell, wherein a second connecting portion is provided on the base, the second connecting portion cooperating with the first connecting portion to fix the base to the bottom of the main shell; and a main control board vertically assembled in the cavity and detachably connected at its bottom end to the base, wherein the guide limiting portion cooperates with the side of the main control board to restrict the movement of the main control board.

[0005] Furthermore, the base has a plurality of spaced positioning ribs protruding on one side facing the main shell, and each positioning rib has a vertically extending strip groove, the bottom end of the main control board being embedded in the strip groove.

[0006] Furthermore, the opening of the strip-shaped card slot is designed to be funnel-shaped.

[0007] Furthermore, the bottom end of the main control board is recessed with a positioning notch, and the portion of the positioning rib adjacent to the bottom of the strip-shaped slot is embedded in the positioning notch.

[0008] Furthermore, the guide limiting part includes a first guide limiting groove and a second guide limiting groove, the first guide limiting groove and the second guide limiting groove extend vertically and are parallel to each other, and the opposite two sides of the main control board are respectively disposed in the first guide limiting groove and the second guide limiting groove.

[0009] Furthermore, the first connecting part is a hook extending vertically from the bottom edge of the main shell toward the base, and the second connecting part is a hook hole on the side wall of the base. The hook is engaged in the hook hole to fix the base to the bottom of the main shell.

[0010] Furthermore, it also includes a guide rail fastener, which is detachably mounted on one side of the base for detachable assembly with a DIN guide rail.

[0011] Furthermore, the base has a guide rail groove recessed on the side facing away from the main housing and an assembly groove running through the guide rail groove. The guide rail fastener includes an integrally connected locking part and a guide rail clamping part. The locking part is detachably embedded in the assembly groove, and the guide rail clamping part is disposed in the guide rail groove to clamp the DIN guide rail.

[0012] Furthermore, the guide rail clamping part includes a first clamping block, a second clamping block, and an elastically retractable connecting rib. The first clamping block and the second clamping block are respectively disposed on opposite sides of the guide rail groove to clamp the opposite side edges of the DIN guide rail. The connecting rib is connected between the first clamping block and the second clamping block and disposed at the bottom of the guide rail groove.

[0013] Furthermore, the locking part is provided with an elastic hook that can be bent elastically on the side facing the mounting groove. The two sides of the groove opening of the mounting groove protrude inward to form a stop part. The bottom of the mounting groove is provided with a groove. The elastic hook elastically presses against the groove. The stop part blocks the edge of the locking part facing away from the mounting groove.

[0014] This utility model provides a controller comprising a main shell, a base, and a main control board. The main shell has an internal cavity and a first connecting portion at its bottom. A guide limiting portion is formed on the cavity wall. The base is located at the bottom of the main shell and has a second connecting portion. The second connecting portion cooperates with the first connecting portion to fix the base to the bottom of the main shell. The main control board is vertically mounted in the cavity and its bottom end is detachably connected to the base. The guide limiting portion cooperates with the side of the main control board to restrict its movement. This controller vertically mounts a single main control board in the cavity inside the shell. The bottom end of the main control board is detachably connected to the base, and its side is fixed by the guide limiting portion on the cavity wall. The base is fixed to the bottom of the main shell by the cooperation of the second connecting portion with the first connecting portion of the main shell. The overall structure is simple, and it can be assembled and disassembled without tools, making it very convenient. Furthermore, the overall size of the controller is smaller, reducing the space occupied in the user's cabinet. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 An exploded view of the controller provided in an embodiment of this utility model; Figure 2 A perspective view of the controller provided in an embodiment of this utility model; Figure 3 A perspective view of the main shell provided for an embodiment of this utility model; Figure 4 An assembly drawing of the main control board and the main housing provided for an embodiment of this utility model; Figure 5 An assembly diagram of the main control board and the base provided for an embodiment of this utility model; Figure 6 A perspective view of the base provided in an embodiment of this utility model; Figure 7 for Figure 6 Enlarged view of part A; Figure 8 A perspective view of the main control board provided for an embodiment of this utility model; Figure 9 Assembly drawing of the base and guide rail fasteners with the DIN guide rail provided for embodiments of this utility model; Figure 10 A perspective view of the base provided in an embodiment of this utility model; Figure 11 for Figure 10 Enlarged view of part A; Figure 12 A perspective view of the guide rail fastener provided in an embodiment of this utility model; Figure 13 for Figure 12 Enlarged view of part A.

[0017] The labels for the attached figures are as follows: 10. Main shell; 101. Receiving cavity; 1. Guide limiting part; 11. First guide limiting groove; 12. Second guide limiting groove; 13. First connecting part; 20. Base; 21. Positioning rib; 2101. Strip-shaped slot; 204. Second connecting part; 201. Assembly groove; 23. Stop part; 203. Groove; 202. Guide rail groove; 30. Main control board; 301. Positioning notch; 31. Socket; 40. Guide rail fastener; 41. Locking part; 411. Elastic hook; 4101. Hand groove; 42. Guide rail clamping part; 421. First clamping block; 422. Second clamping block; 423. Connecting rib; 4201. Clamping groove; 100. DIN guide rail. Detailed Implementation

[0018] 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, 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.

[0019] The directional terms used in this invention, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for explanation and understanding of this invention, and not for limiting it. Furthermore, in the accompanying drawings, structures that are similar or identical are indicated by the same reference numerals.

[0020] See Figures 1 to 5 This utility model provides a controller, which is not limited to PLC controllers, vehicle controllers, motor controllers, and other control devices. This embodiment uses a PLC controller as an example, and the structure and working principle of the controller will be described in detail below with reference to the accompanying drawings. Figures 1 to 5As shown, the controller includes a main housing 10, a base 20, and a main control board 30. The main housing 10 is a cover structure with an internal cavity 101 for accommodating and mounting the main control board 30. A guide and limiting part 1 is formed on the cavity wall of the cavity 101 for mounting the main control board 30. The guide and limiting part 1 can be a groove structure. The bottom of the main housing 10 is open, and a first connecting part 13 is provided at the bottom end of the main housing 10 for connecting with the base 20. The base 20 is located at the bottom of the main housing 10 to seal the bottom of the main housing 10. The base 20 and the main housing 10 are detachably installed. The base 20 has a second connecting part 204, which cooperates with the first connecting part 13 to fix the base 20 to the bottom of the main housing 10, thereby connecting the base 20 and the main housing 10 to form a complete shell structure. In this embodiment, the main control board 30 is a PCB board integrating the core control function circuit of the PLC. The length and width of the main control board 30 are adapted to the size of the accommodating cavity. The main control board 30 extends from one side of the base 20 away from the base 20. The main control board 30 is vertically mounted in the accommodating cavity 101, and its bottom end is detachably connected to the base 20. The guide limiting part 1 cooperates with the side of the main control board 30 to restrict the movement of the main control board 30. Specifically, when installing the main control board 30, the guide limiting part 1 on the cavity wall of the accommodating cavity 101 can provide a guiding function. After installation, the side of the main control board 30 cooperates with the guide limiting part 1 to limit the movement of the main control board 30, thereby preventing the main control board 30 from shaking or loosening. When disassembling the base 20, the main control board 30 can be removed together with the base 20, and then the main control board 30 can be removed from the base 20. The main control board 30 is equipped with various components, including various types of sockets 31, such as power sockets, RJ45 sockets, and TPCY-C sockets. Corresponding openings are provided on the outer side of the main housing 10, leading to the interior of the receiving cavity 101 for alignment with these sockets 31. Overall, the controller, through its unique structure, features a single main control board vertically positioned within the receiving cavity of the housing, eliminating the need for additional circuit boards that occupy space within the main housing. This results in a simple structure, small size, and the controller is not secured with any screws, making it easy to assemble and disassemble without tools.

[0021] In one embodiment, reference is made to Figures 5 to 7The base 20 has multiple spaced positioning ribs 21 protruding from the side facing the main shell 10. The number of positioning ribs 21 can be two or more. The positioning ribs 21 are plate-shaped structures and are perpendicular to the main control board 30. All positioning ribs 21 are spaced along the side of the bottom of the main control board 30. Each positioning rib 21 has a vertically extending strip groove 2101. The width of the strip groove 2101 matches the thickness of the main control board 30. The bottom end of the main control board 30 is embedded in the strip groove 2101 and fixed by the strip groove 2101. When disassembling, simply pull the main control board 30 upwards. When installing, simply insert the bottom of the main control board 30 into the strip groove 2101, which is very convenient.

[0022] In a further embodiment, refer to Figure 7 The groove opening of the strip slot 2101 is designed as a funnel shape, that is, the end of the groove opening of the strip slot 2101 near the bottom of the groove gradually expands towards the end away from the bottom of the groove. The groove walls on both sides of the groove opening of the strip slot 2101 are outward sloping structures, forming a funnel shape. When installing the main control board 30, the groove walls of the groove opening can play a good guiding role, making the assembly of the main control board 30 and the base 20 more convenient.

[0023] In a further embodiment, refer to Figure 8 The bottom of the main control board 30 is recessed with a positioning notch 301. The number and position of the positioning notches 301 correspond to the positioning ribs 21 on the base 20. The part of the positioning rib 21 that is adjacent to the bottom of the strip groove 2101 is embedded in the positioning notch 301. The positioning notch 301 and the strip groove 2101 are engaged to accurately position the main control board 30. During assembly, simply align the positioning notch 301 at the bottom of the main control board 30 with the strip opening on the positioning rib 21, and then insert the main control board 30 to complete the installation. It is very convenient, and the assembled main control board 30 is more stable and will not shake or move.

[0024] In one embodiment, reference is made to Figure 3 and Figure 4The guide limiting part 1 is configured as a first guide limiting groove 11 and a second guide limiting groove 12. Both the first limiting groove 11 and the second limiting groove 12 are straight extending groove structures. The first guide limiting groove 11 and the second guide limiting groove 12 are respectively formed on the opposite cavity walls of the receiving cavity 101 and are parallel to each other. The first guide limiting groove 11 can be formed on the left cavity wall of the receiving cavity 101, and the second guide limiting groove 12 can be formed on the right cavity wall of the receiving cavity 101. The extending direction of the first guide limiting groove 11 and the second guide limiting groove 12 corresponds to the setting direction of the main control board 30. The groove width of the first guide limiting groove 11 and the second guide limiting groove 12 matches the thickness of the main control board 30. The distance between the first guide limiting groove 11 and the second guide limiting groove 12 matches the width of the opposite sides of the main control board 30. The opposite sides of the main control board 30 are respectively located in the first guide limiting groove 11 and the second guide limiting groove 12. During installation, the two sides of the main control board 30 are aligned with the first guide limiting groove 11 and the second guide limiting groove 12, respectively. Then, the main control board 30 is inserted along the first guide limiting groove 11 and the second guide limiting groove 12 until the main control board 30 is installed in place. The first guide limiting groove 11 and the second guide limiting groove 12 provide guidance for the main control board 30, enabling precise positioning of the main control board 30 during blind installation. At the same time, after installation, the first guide limiting groove 11 and the second guide limiting groove 12 can restrict the movement space of the main control board 30, thus limiting the main control board 30 and keeping it stable to prevent loosening or shaking.

[0025] In one embodiment, reference is made to Figures 1 to 4 The first connecting part 13 is a hook extending vertically from the bottom edge of the main shell 10 toward the base 20. The hook has a male-female snap-fit ​​structure, and there are multiple hooks. The second connecting part 204 is a hook hole on the side wall of the base 20. The hook hole is a through-hole structure that matches the hook, and the number of hook holes is equal to the number of hooks, with each hole corresponding to a hook. The hook engages with the hook hole to fix the bottom of the base 10 to the main shell 10, thus achieving a detachable connection between the base 20 and the main shell 10. The base 20 and the main shell 10 are fixed together by the hook and the hook hole, preventing separation. When it is necessary to remove the base 20, pressing the hook into the hook hole will disengage the hook, thus releasing the fixation between the base 20 and the main shell 10. The assembly and disassembly of the base 20 and the main shell 10 is very simple and convenient.

[0026] In one embodiment, reference is made to Figure 1 and Figure 9The controller also includes a guide rail fastener 40, which is detachably mounted on one side of the base 20 for detachable assembly with a DIN rail. Specifically, the guide rail fastener 40 is the main component for assembling the controller with the DIN rail 100. The guide rail fastener 40 is detachably mounted on one side of the base 20, specifically on the side of the base 20 facing away from the main housing 10, i.e., the bottom of the base 20. The guide rail fastener 40 can be detachably assembled with the DIN rail 100, allowing the base 20 to be mounted onto the DIN rail 100 via the guide rail fastener 40, thereby assembling the entire controller onto the DIN rail 100. Disassembly involves removing the guide rail fastener 40 from the base 20 and then removing it from the DIN rail 100 to remove the entire controller.

[0027] In one embodiment, reference is made to Figure 9 and Figure 10 The base 20 has a guide rail groove 202 recessed on the side facing away from the main shell 10 and an assembly groove 201 that runs through the guide rail groove 202. That is, the guide rail groove 202 and the assembly groove 201 are formed at the bottom of the base 20. The width of the guide rail groove 202 is slightly larger than the width of the two sides of the DIN rail 100. The specific design can be made according to the size of the DIN rail. The guide rail groove 202 is mainly used to insert the DIN rail 100 assembly controller. The guide rail fastener 40 includes an integrally connected locking part 41 and a guide rail clamping part 42. The locking part 41 is detachably embedded in the assembly groove 201, and the guide rail clamping part 42 is disposed in the guide rail groove 202 to clamp the DIN rail 100. In practical applications, the guide rail clamping part 42 firmly clamps the DIN guide rail 100, and the locking part 41, through its engagement with the assembly slot 201, locks the guide rail clamping part 42, thus fixing the base 20 to the DIN guide rail 100 together, thereby assembling the entire controller onto the DIN guide rail 100. When it is necessary to remove the controller, the locking part 41 is removed from the assembly slot 201, releasing the clamping part 42 from the DIN guide rail 100.

[0028] In a further embodiment, refer to Figure 9 and Figure 12The guide rail clamping part 42 includes a first clamping block 421, a second clamping block 422, and an elastically retractable connecting rib 423. The first clamping block 421 and the second clamping block 422 are respectively disposed on opposite sides of the guide rail groove 202 to clamp the opposite side edges of the DIN guide rail 100, so that the DIN guide rail 100 as a whole cannot be separated from the guide rail groove 202. Specifically, the first clamping block 421 and the second clamping block 422 are provided with clamping grooves 4201 matching the side of the DIN guide rail 100 on opposite sides. The first clamping block 421 and the second clamping block 422 clamp the opposite side edges of the DIN guide rail 100 through the clamping grooves 4201, so that the DIN guide rail 100 cannot be separated from the guide rail groove 202. The connecting rib 423 is connected between the first clamping block 421 and the second clamping block 422 and is disposed at the bottom of the guide rail groove 202 to ensure the connection between the first clamping block 421 and the second clamping block 422. The first clamping block 421 and the second clamping block 422 will securely lock the DIN guide rail 100. The elastic extension and retraction of the connecting rib 423 can adjust the distance between the first clamping block 421 and the second clamping block 422 for easy disassembly.

[0029] In a further embodiment, refer to Figures 11 to 13 The locking part 41 has an elastic hook 411 that can be flexibly bent on the side facing the mounting groove 201. The end of the elastic hook 411 has a chamfered structure. Both sides of the groove opening of the mounting groove 201 protrude inward to form a stop part 23. The stop part 23 is a blocking structure that blocks the protrusion of the two sides of the groove opening of the mounting groove 201 towards the middle. The bottom of the mounting groove 201 has a groove 203. The bottom of the groove 203 is also set as a slope structure, corresponding to the slope direction of the elastic hook 411. The elastic hook 411 is elastically pressed against the groove 203. The elastic stress of the elastic hook 411 causes the locking part 41 to rebound outward toward the mounting groove 201. The stop part 23 blocks the edge of the locking part 41 facing away from the mounting groove 201. The locking part 41 is blocked by the stop part 23 and cannot be removed from the mounting groove 201, thus being stably embedded in the mounting groove 201 and fixing the guide rail clamping part 42, so that the controller and the DIN guide rail 100 are stably assembled together.

[0030] In a further embodiment, refer to Figure 6 and Figure 12The end of the mounting groove 201 away from the guide rail groove 202 passes through the side of the base 20, forming an open groove structure. The end of the locking part 41 away from the guide rail clamping part 42 extends out of the side of the base 20, and the end of the locking part 41 away from the guide rail clamping part 42 forms a handle groove 4101. Specifically, the opening of the handle groove 4101 is exposed outside the side of the base 20, and the opening of the handle groove 4101 faces the main shell 10. In actual application, by inserting a screwdriver or other tool into the handle groove 4101, the locking part 41 can be easily pried up from the mounting groove 201, so that the locking part 41 is detached from the mounting groove 201, thereby removing the entire guide rail fastener 40 from the bottom of the base 20, making the disassembly of the guide rail fastener 40 more convenient.

[0031] In summary, the controller of this application vertically sets a single main control board in the receiving cavity inside the housing. The bottom end of the main control board is detachably connected to the base, and the side cooperates with the guide and limiting part on the cavity wall for installation limitation. The base is fixed to the bottom of the main housing by cooperating with the first connecting part of the main housing through the second connecting part. The overall structure is simple, and it can be disassembled and assembled without tools, which is very convenient. Moreover, the overall size of the controller is smaller, which can reduce the space occupied in the user's cabinet.

[0032] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A controller, characterized in that, include: The main shell has an internal cavity and a first connecting part at the bottom. A guide limiting part is formed on the cavity wall of the cavity. A base is provided at the bottom of the main shell, and a second connecting part is provided on the base. The second connecting part cooperates with the first connecting part to fix the base to the bottom of the main shell. The main control board is vertically assembled in the receiving cavity and its bottom end is detachably connected to the base. The guide limiting part cooperates with the side of the main control board to restrict the movement of the main control board.

2. The controller according to claim 1, characterized in that, The base has multiple spaced positioning ribs protruding from the side facing the main shell. Each positioning rib has a vertically extending strip groove, and the bottom end of the main control board is embedded in the strip groove.

3. The controller according to claim 2, characterized in that, The opening of the strip-shaped card slot is funnel-shaped.

4. The controller according to claim 2, characterized in that, The bottom of the main control board is recessed with a positioning notch, and the portion of the positioning rib adjacent to the bottom of the strip-shaped slot is embedded in the positioning notch.

5. The controller according to any one of claims 1-4, characterized in that, The guide limiting part is configured as a first guide limiting groove and a second guide limiting groove. The first guide limiting groove and the second guide limiting groove are respectively formed on the opposite two cavity walls of the receiving cavity and are parallel to each other. The opposite two sides of the main control board are respectively disposed in the first guide limiting groove and the second guide limiting groove.

6. The controller according to any one of claims 1-4, characterized in that, The first connecting part is a hook that extends vertically from the bottom edge of the main shell toward the base, and the second connecting part is a hook hole on the side wall of the base. The hook is engaged in the hook hole to fix the base to the bottom of the main shell.

7. The controller according to any one of claims 1-4, characterized in that, It also includes a guide rail fastener, which is detachably mounted on one side of the base for detachable assembly with a DIN rail.

8. The controller according to claim 7, characterized in that, The base has a guide rail groove recessed on the side facing away from the main shell and an assembly groove running through the guide rail groove. The guide rail fastener includes an integrally connected locking part and a guide rail clamping part. The locking part is detachably embedded in the assembly groove, and the guide rail clamping part is disposed in the guide rail groove to clamp the DIN guide rail.

9. The controller according to claim 8, characterized in that, The guide rail clamping part includes a first clamping block, a second clamping block, and an elastically retractable connecting rib. The first clamping block and the second clamping block are respectively disposed on opposite sides of the guide rail groove to clamp the opposite side edges of the DIN guide rail. The connecting rib is connected between the first clamping block and the second clamping block and disposed at the bottom of the guide rail groove.

10. The controller according to claim 8, characterized in that, The locking part is provided with an elastic hook that can be bent elastically on the side facing the mounting groove. Both sides of the groove opening of the mounting groove protrude inward to form a stop part. The bottom of the mounting groove is provided with a groove. The elastic hook elastically presses against the groove. The stop part blocks the edge of the locking part facing away from the mounting groove.

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