Power distribution cabinet with PLC controller

Abstract

The utility model discloses a power distribution cabinet with a PLC controller. The power distribution cabinet comprises a cabinet body with a cabinet door and the PLC controller arranged in the cabinet body. The heat conduction plate is fixedly connected with the rear end of the PLC, the heat dissipation fins are arranged at the rear end of the heat conduction plate, the connecting plates are fixedly connected to the two sides of the heat conduction plate, the flow guide cover is fixedly connected to the rear end of the cabinet body and covers the heat dissipation fins, the heat dissipation fan is fixedly connected to the flow guide cover, and the mounting frame is fixedly connected to the rear end of the cabinet body. The rear end of the connecting plate is fixedly connected with the flow guide cover; the rear end of the cabinet body is provided with an opening for the PLC to enter, and the flow guide cover comprises a plate body and side plates which are located on the two sides of the plate body and fixedly connected with the cabinet body. An air inlet is formed in the plate body, and the cooling fan is fixedly connected to the air inlet. Heat dissipation airflow does not directly pass through the PLC, but heat is transferred to the heat dissipation fins from the controller through the heat conduction plate, and therefore dust accumulation on the surface of the PLC can be remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission and distribution equipment, in particular to a power distribution cabinet with a PLC controller. Background Art

[0002] Distribution cabinets are critical equipment in power systems for receiving and distributing electrical energy. They control, protect, and monitor the transmission of power. They are typically installed in power plants, substations, and various industrial and commercial buildings. Heat generation is a common concern when installing PLC controllers in distribution cabinets, as it can affect equipment performance and stability. To address this, measures are often taken, such as using cabinets with louvers to promote air circulation, strategically placing electrical components to ensure proper heat dissipation, and installing fans or air conditioning systems for active cooling when necessary.

[0003] my country's utility model patent announcement number CN219643347U discloses a power distribution cabinet with a function that facilitates the installation of PLC hardware. It realizes air supply and cooling of the PLC hardware by setting an air supply mechanism on the lower end face of the cabinet. Although it can effectively dissipate heat for the PLC hardware, the heat dissipation airflow will carry dust when flowing through the cabinet. After a period of use, dust will accumulate on the surface of the PLC hardware, resulting in a decrease in the heat dissipation of the PLC hardware. The dust accumulated on the surface of the PLC hardware will also cause short circuits in the components of the PLC hardware, resulting in an increase in the failure rate of the PLC hardware. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a power distribution cabinet with a PLC controller.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A power distribution cabinet with a PLC controller comprises a cabinet body with a cabinet door, and a PLC controller arranged in the cabinet body; it also comprises a heat conducting plate fixedly connected to the rear end of the PLC controller, heat dissipation fins arranged at the rear end of the heat conducting plate, a connecting plate fixedly connected to both sides of the heat conducting plate, a shroud fixedly connected to the rear end of the cabinet body and covering the heat dissipation fins, a cooling fan fixedly connected to the shroud, and a mounting frame fixedly connected to the rear end of the cabinet body; the rear end of the connecting plate is fixedly connected to the shroud; an opening for entry of the PLC controller is provided at the rear end of the cabinet body, the shroud comprises a plate body, and side plates located on both sides of the plate body and fixedly connected to the cabinet body; an air inlet is provided on the plate body, and the cooling fan is fixedly connected to the air inlet.

[0007] Preferably, an insect-proof net is fixedly connected to the rear end of the heat dissipation fan.

[0008] Preferably, there are two sets of mounting brackets, which are respectively located at the upper and lower parts of the cabinet; the mounting brackets include connecting ears fixedly connected to the cabinet, a connecting part fixedly connected to the connecting ears and extending to the rear end of the cabinet, a mounting part arranged at the rear end of the connecting part, and a stiffening plate located on the side of the connecting part; a mounting hole is provided on the mounting part.

[0009] Preferably, the connecting plate is a split structure, including a folding plate 1 fixedly connected to the heat conducting plate, and a folding plate 2 fixedly connected to the air guide cover; the folding plate 1 and the folding plate 2 are fixedly connected by bolts.

[0010] Preferably, the heat dissipation fins are arranged vertically and are made of copper plates or aluminum plates.

[0011] The above technical solution has the following advantages:

[0012] 1. This utility model utilizes a heat-conducting plate with fins to dissipate heat from the PLC controller, effectively ensuring heat dissipation efficiency. Since the heat dissipation airflow does not pass directly through the PLC controller, but instead transfers heat from the controller to the fins via the heat-conducting plate, where it is then dissipated into the environment, this significantly reduces dust accumulation on the PLC controller's surface. In actual use, even over the same period of time, the amount of dust accumulated on the PLC controller's surface is significantly reduced, which helps reduce dust-related failure rates and extends the PLC controller's service life.

[0013] 2. The utility model not only improves the working stability and reliability of the PLC controller, but also reduces maintenance costs and improves the overall stability of the distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the utility model;

[0015] Figure 2 for Figure 1 Left view of;

[0016] Figure 3 for Figure 1 Rear view;

[0017] Figure 4 for Figure 1 Stereoscopic image of

[0018] Figure 5 This is an exploded view of the utility model;

[0019] In the picture:

[0020] 1-cabinet door, 2-cabinet body, 3-PLC controller, 4-heat conduction plate, 5-heat dissipation fin, 6-connecting plate, 7-air deflector, 8-cooling fan, 9-mounting frame, 10-opening, 11-plate body, 12-side panel, 13-air inlet, 14-insect screen, 15-connecting ear, 16-connecting part, 17-mounting part, 18-stiffening plate, 19-mounting hole, 20-folding plate 1, 21-folding plate 2, 22-bolt. DETAILED DESCRIPTION

[0021] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0022] As shown in the accompanying drawings, a power distribution cabinet with a PLC controller 3 includes a cabinet body 2 with a cabinet door 1, and a PLC controller 3 arranged in the cabinet body 2; it also includes a heat conduction plate 4 fixedly connected to the rear end of the PLC controller 3, heat dissipation fins 5 arranged at the rear end of the heat conduction plate 4, a connecting plate 6 fixedly connected to both sides of the heat conduction plate 4, a shroud 7 fixedly connected to the rear end of the cabinet body 2 and covering the heat dissipation fins 5, a cooling fan 8 fixedly connected to the shroud 7, and a mounting frame 9 fixedly connected to the rear end of the cabinet body 2; the rear end of the connecting plate 6 is fixedly connected to the shroud 7; an opening 10 for the PLC controller 3 to enter is provided at the rear end of the cabinet body 2, the shroud 7 includes a plate body 11, and side plates 12 located on both sides of the plate body 11 and fixedly connected to the cabinet body 2; an air inlet 13 is provided on the plate body 11, and the cooling fan 8 is fixedly connected to the air inlet 13.

[0023] As a further improved technical solution of this embodiment, an insect-proof net 14 is fixedly connected to the rear end of the cooling fan 8, which can effectively prevent insects from entering the cooling fan 8 and ensure that the cooling fan 8 works without interference.

[0024] As a technical solution to further improve this embodiment, the mounting bracket 9 is provided in two sets, which are respectively located at the upper and lower parts of the cabinet body 2; the mounting bracket 9 includes a connecting ear 15 fixedly connected to the cabinet body 2, a connecting portion 16 fixedly connected to the connecting ear 15 and extending toward the rear end of the cabinet body 2, a mounting portion 17 arranged at the rear end of the connecting portion 16, and a stiffening plate 18 located on the side of the connecting portion 16; a mounting hole 19 is provided on the mounting portion 17, and the connection between the distribution cabinet and the structure is achieved through the mounting hole 19.

[0025] As a further improvement to this embodiment, the connecting plate 6 is a split structure, comprising a folding plate 1 20 fixedly connected to the heat conducting plate 4, and a folding plate 21 fixedly connected to the air deflector 7; the folding plate 1 20 and the folding plate 21 are fixedly connected by bolts 22. The split structure of the connecting plate 6 increases the convenience of assembly and disassembly.

[0026] As a further improved technical solution of this embodiment, the heat dissipation fins 5 are arranged vertically to achieve the discharge of heat dissipation airflow from the upper and lower ends of the air guide cover 7, and copper plates or aluminum plates with high heat exchange efficiency can be used.

[0027] When the present invention is used, the PLC controller 3 contacts the heat conducting plate 4 to achieve heat conduction. Thermal grease can be applied between the fitting surfaces of the two as needed. The cooling fan 8 blows the airflow onto the heat dissipating fins 5. The airflow exchanges heat with the heat dissipating fins 5 to take away the temperature on the heat dissipating fins 5, thereby controlling the temperature of the PLC controller 3 and ensuring that the PLC controller 3 does not reach a high temperature. The airflow after heat exchange flows out from the upper and lower ends of the air guide cover 7. Since the heat dissipation airflow does not pass directly through the PLC controller 3, but transfers heat from the controller to the heat dissipating fins 5 through the heat conducting plate 4, and then the heat dissipating fins 5 exchange heat with the airflow to the environment, the accumulation of dust on the surface of the PLC controller 3 can be significantly reduced. In actual use, even after the same time period, the amount of dust accumulated on the surface of the PLC controller 3 will be significantly reduced, which helps to reduce the failure rate caused by dust, and also helps to extend the service life of the PLC controller 3.

[0028] This utility model is particularly suitable for applications requiring high heat dissipation performance, such as industrial production lines, commercial buildings, public facilities, and special environmental conditions. In these scenarios, electrical equipment must not only withstand heavy loads but also operate stably for extended periods of time. Considering the special heat dissipation requirements of key electrical components such as PLC controllers, the application of this utility model's heat dissipation distribution box is particularly important. It not only provides reliable heat dissipation for these devices, ensuring that normal temperatures are maintained even under high loads, but also effectively improves the reliability and service life of the equipment, ensuring the stable operation of the entire system.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A power distribution cabinet with a PLC controller, comprising a cabinet body (2) with a cabinet door (1), and a PLC controller (3) arranged in the cabinet body (2); characterized in that: The invention further comprises a heat conducting plate (4) fixedly connected to the rear end of the PLC controller (3), heat dissipation fins (5) arranged at the rear end of the heat conducting plate (4), a connecting plate (6) fixedly connected to both sides of the heat conducting plate (4), a shroud (7) fixedly connected to the rear end of the cabinet (2) and covering the heat dissipation fins (5), a heat dissipation fan (8) fixedly connected to the shroud (7), and a mounting frame (9) fixedly connected to the rear end of the cabinet (2); the rear end of the connecting plate (6) is fixedly connected to the shroud (7); an opening (10) for the PLC controller (3) to enter is provided at the rear end of the cabinet (2); the shroud (7) comprises a plate (11) and side plates (12) located on both sides of the plate (11) and fixedly connected to the cabinet (2); an air inlet (13) is provided on the plate (11), and the heat dissipation fan (8) is fixedly connected to the air inlet (13).

2. The power distribution cabinet with a PLC controller according to claim 1, characterized in that: The rear end of the heat dissipation fan (8) is fixedly connected with an insect-proof net (14).

3. The power distribution cabinet with a PLC controller according to claim 1 or 2, characterized in that: The mounting brackets (9) are in two sets, respectively located at the upper and lower parts of the cabinet (2); the mounting brackets (9) include a connecting ear (15) fixedly connected to the cabinet (2), a connecting portion (16) fixedly connected to the connecting ear (15) and extending toward the rear end of the cabinet (2), a mounting portion (17) arranged at the rear end of the connecting portion (16), and a stiffening plate (18) located on the side of the connecting portion (16); and a mounting hole (19) is provided on the mounting portion (17).

4. The power distribution cabinet with a PLC controller according to claim 1 or 2, characterized in that: The connecting plate (6) is a split structure, comprising a folding plate 1 (20) fixedly connected to the heat conducting plate (4), and a folding plate 2 (21) fixedly connected to the air guide cover (7); the folding plate 1 (20) and the folding plate 2 (21) are fixedly connected by bolts (22).

5. The power distribution cabinet with a PLC controller according to claim 3, characterized in that: The connecting plate (6) is a split structure, comprising a folding plate 1 (20) fixedly connected to the heat conducting plate (4), and a folding plate 2 (21) fixedly connected to the air guide cover (7); the folding plate 1 (20) and the folding plate 2 (21) are fixedly connected by bolts (22).

6. The power distribution cabinet with a PLC controller according to claim 1 or 2, characterized in that: The heat dissipation fins (5) are arranged vertically and are made of copper plates or aluminum plates.

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