Electric control cabinet body with strong and weak current layered protection

Abstract

The utility model discloses an electric control cabinet body with strong and weak current layered protection, relates to the field of electric control cabinets, and aims to solve the problem that signal interference exists between a strong current control wire harness and a weak current control wire harness due to the fact that a strong current area and a weak current area in the control cabinet are staggered together because the internal area of the existing control cabinet is not separated in the prior art. Vertical connecting rods are fixedly connected to the front end and the rear end of the middle of the end faces of the two sides in the control cabinet, a first partition plate is connected to the middle between the four vertical connecting rods, a strong current area is arranged at the position, at the upper end of the first partition plate, in the control cabinet, and a second partition plate is arranged at the lower end of the first partition plate. A weak current area is arranged in the control cabinet and located at the lower end of the second partition plate, a wiring area is arranged between the first partition plate and the second partition plate, the interior of the electric control cabinet is divided into the independent strong current area, weak current area and wiring area through the first partition plate and the second partition plate, and electromagnetic interference of strong current to weak current equipment is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of electrical control cabinets, specifically an electrical control cabinet with layered protection for strong and weak currents. Background Technology

[0002] Electrical control cabinets are core equipment in industrial automation systems, used for the centralized installation, protection, and control of electrical components and circuits. They typically consist of a metal cabinet, circuit breakers, contactors, relays, PLCs (Programmable Logic Controllers), frequency converters, and terminal blocks, providing functions such as power distribution, signal conversion, motor control, and process monitoring. Electrical control cabinets are widely used in machinery manufacturing, energy, transportation, and building automation, among other fields.

[0003] For example, patent application CN 217720340 U discloses a control cabinet structure, including a cabinet body. A switch plate is hinged to the front of the cabinet body, and two parallel mounting rails are installed at the rear of the cabinet body. A fixing plate connects the inner sides of the two mounting rails, and two mounting plates are installed on both sides of the rear of the fixing plate. Four snap-fit ​​blocks adapted to the mounting rails are provided at the front of the fixing plate. Several positioning screw holes are opened through both sides of the mounting rails. The bottom of the movable plate is movably connected to the switch plate via a pivot, and a limit rod is installed on the front of the switch plate near the top of the movable plate. The limit rod is in an inverted L-shape and movably connected to the switch plate via a pivot. A handle is installed on one side of the front of the switch plate. This control cabinet structure allows for selection of the cabinet installation method and provides protection for the installed meters and indicator lights.

[0004] However, the existing control cabinets do not have internal partitions, resulting in the high-voltage and low-voltage areas being intertwined, causing signal interference between the high-voltage and low-voltage control harnesses. Therefore, there is an urgent need in the market to develop a control cabinet with layered protection for high and low voltage to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide an electrical control cabinet with layered protection for strong and weak currents, so as to solve the problem mentioned in the background art that the internal areas of the existing control cabinet are not separated, resulting in the strong and weak current areas inside the control cabinet being intertwined, and causing signal interference between the strong and weak current control harnesses.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electrical control cabinet with layered protection for strong and weak currents, comprising a control cabinet, wherein vertical connecting rods are fixedly connected to the middle of the front and rear ends of both sides of the inner side of the control cabinet, and a first partition plate is connected in the middle between the four vertical connecting rods, a strong current area is set inside the control cabinet at the upper end of the first partition plate, three first cable routing holes are equally spaced at the rear end of the first partition plate, a second partition plate is set at the lower end of the first partition plate, a weak current area is set inside the control cabinet at the lower end of the second partition plate, three second cable routing holes are equally spaced at the front end of the second partition plate, a wiring area is set between the first partition plate and the second partition plate, and vertical partition plates are set on both sides of the middle of the wiring area between the first partition plate and the second partition plate.

[0007] Preferably, a plurality of high-voltage components are fixedly installed inside the high-voltage area at the upper end of the first partition plate, and a plurality of low-voltage components are fixedly installed inside the low-voltage area at the lower end of the second partition plate. The high-voltage components and low-voltage components are connected by connecting wires that pass sequentially through the first wiring hole, the wiring area, and the second wiring hole.

[0008] Preferably, L-shaped connecting pieces are fixedly connected to the front and rear ends of the middle part of both sides of the upper surface of the first and second partition plates, and multiple threaded holes are equally spaced on the inner end faces of the four vertical connecting rods.

[0009] Preferably, limit strips are fixedly connected to the lower end face of the first partition plate and the upper end face of the second partition plate, as well as to the upper and lower ends of both sides of the vertical partition plate, and a wave-absorbing material layer is applied to the outer surface of the first partition plate, the vertical partition plate and the second partition plate.

[0010] Preferably, a first air inlet is provided at the upper middle part of both sides of the control cabinet, and a second air inlet is provided at the lower middle part of both sides of the control cabinet. A second protective net is fixedly connected inside the first air inlet and the second air inlet.

[0011] Preferably, an air outlet is provided in the middle of the upper surface of the control cabinet, and a first protective net is fixedly installed inside the air outlet.

[0012] Preferably, an air guide hood is fixedly connected to the upper surface inside the control cabinet and to the lower end of the air outlet, and a fan is fixedly connected to the lower end of the air guide hood.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the inside of the electrical control cabinet is divided into an independent high-voltage area, a low-voltage area and a wiring area by the first partition plate and the second partition plate, which realizes the physical isolation of high-voltage and low-voltage equipment, effectively avoids electromagnetic interference of high voltage to low-voltage equipment, and improves the stability and reliability of system operation.

[0015] (2) In this utility model, the use of a partition plate with wave-absorbing material and a vertical partition plate structure, combined with a special cable hole design, not only realizes the standardized wiring of strong and weak power cables, but also provides a good electromagnetic shielding effect, further reducing the risk of signal interference.

[0016] (3) In this utility model, the innovative partitioned heat dissipation system design adopts different heat dissipation methods such as forced air cooling and natural convection for the strong power area and the weak power area respectively, which not only ensures heat dissipation efficiency but also reduces energy consumption. At the same time, the adjustable layered structure design improves the flexibility of cabinet space utilization. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the control cabinet of this utility model;

[0018] Figure 2 This is a front view of an electrical control cabinet with layered protection for strong and weak electrical circuits according to this utility model.

[0019] Figure 3 This is a main sectional view of the vertical connecting rod of this utility model;

[0020] Figure 4 This is a side sectional view of the control cabinet of this utility model:

[0021] Figure 5 This is a detailed enlarged view of part A of this utility model.

[0022] In the diagram: 1. Control cabinet; 101. Air outlet; 102. First protective net; 103. First air inlet; 104. Second air inlet; 105. Second protective net; 106. High-voltage components; 107. Low-voltage components; 108. Connecting wire; 2. Vertical connecting rod; 201. Threaded hole; 3. First partition plate; 301. First cable routing hole; 4. Second partition plate; 401. Second cable routing hole; 5. L-shaped connecting piece; 501. Screw; 6. Vertical partition plate; 601. Limiting strip; 7. Air guide cover; 701. Fan. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5This utility model provides an embodiment of an electrical control cabinet with layered protection for strong and weak currents, comprising a control cabinet 1. Vertical connecting rods 2 are fixedly connected to the middle of both sides of the inner end face of the control cabinet 1, and a first partition plate 3 is connected between the four vertical connecting rods 2. A strong current zone is set above the first partition plate 3 inside the control cabinet 1, and a second partition plate 4 is set below the first partition plate 3. A weak current zone is set below the second partition plate 4 inside the control cabinet 1. A wiring zone is set between the first partition plate 3 and the second partition plate 4. L-shaped connecting pieces 5 are fixedly connected to the middle of both sides of the upper end face of the first partition plate 3 and the second partition plate 4. Multiple threaded holes 201 are evenly spaced on the inner end face of the four vertical connecting rods 2. The four L-shaped connecting pieces on both sides of the upper end face of the first partition plate 3 and the second partition plate 4... Each of the four vertical connecting rods 2 is fixed by screws 501 passing through the L-shaped connecting piece 5 and then inserted into the threaded hole 201. Multiple high-voltage components 106 are fixedly installed inside the high-voltage area at the upper end of the first partition plate 3, and multiple low-voltage components 107 are fixedly installed inside the low-voltage area at the lower end of the second partition plate 4. The high-voltage components 106 and low-voltage components 107 are connected by connecting wires 108 passing through the first wiring hole 301, the wiring area and the second wiring hole 401 in sequence. The control cabinet 1 is divided into a high-voltage area, a wiring area and a low-voltage area by the first partition plate 3 and the second partition plate 4, so that multiple sets of connecting wires 108 are separated and interference is reduced. As needed, the first partition plate 3 and the second partition plate 4 can be connected at different heights between the four vertical connecting rods 2 to realize the setting of high-voltage areas and low-voltage areas of different sizes as needed.

[0025] Please see Figure 3 and Figure 4 The first partition plate 3 has three first cable routing holes 301 evenly spaced at its rear end, and the second partition plate 4 has three second cable routing holes 401 evenly spaced at its front end. Vertical partition plates 6 are provided on both sides of the middle of the wiring area between the first partition plate 3 and the second partition plate 4. The vertical partition plates 6 separate each group of first cable routing holes 301 and second cable routing holes 401. Limiting strips 601 are fixedly connected to the lower end face of the first partition plate 3 and the upper end face of the second partition plate 4, as well as to the upper and lower ends of both sides of the vertical partition plate 6. The outer surfaces of the first partition plate 3, the vertical partition plate 6, and the second partition plate 4 are all covered with a wave-absorbing material layer. The connecting lines 108 between the strong current area and the weak current area pass through the wiring area along the first cable routing holes 301 and the second cable routing holes 401 after being classified, and are isolated from each other by the vertical partition plates 6 with wave-absorbing material layers on their outer surfaces, thereby reducing signal interference between the connecting lines 108.

[0026] Please see Figure 4The upper middle part of both sides of the control cabinet 1 is provided with a first air inlet 103, and the lower middle part of both sides of the control cabinet 1 is provided with a second air inlet 104. The first air inlet 103 and the second air inlet 104 are both fixedly connected with a second protective net 105. The middle part of the upper end of the control cabinet 1 is provided with an air outlet 101, and the first protective net 102 is fixedly installed inside the air outlet 101. The upper end of the control cabinet 1 and the lower end of the air outlet 101 are fixedly connected with a wind guide 7. The lower end of the wind guide 7 is fixedly connected with a fan 701. The second air inlet 104 provides natural ventilation and heat dissipation for the weak electrical area at the lower end of the second partition plate 4. When the fan 701 is working, the hotter air in the strong electrical area at the upper end of the first partition plate 3 is sent out from the air outlet 101 through the wind guide 7. The outside air enters the strong electrical area through the first air inlet 103 for heat dissipation.

[0027] Working Principle: In use, the control cabinet 1 is divided into independent high-voltage, wiring, and low-voltage zones by the first partition 3 and the second partition 4. High-voltage components 106 are installed in the high-voltage zone above the first partition 3, and low-voltage components 107 are arranged in the low-voltage zone below the second partition 4. The connecting wires 108 between the high-voltage and low-voltage zones are passed through the first cable routing hole 301 and the second cable routing hole 401, respectively, and are physically isolated and electromagnetically shielded by the vertical partition 6 with wave-absorbing material, effectively suppressing interference between high-voltage and low-voltage signals. The heat dissipation system adopts a zoned design: the low-voltage zone achieves natural convection heat dissipation through the second air inlet 104; the high-voltage zone actively draws air through the fan 701, allowing external cold air to enter through the first air inlet 103 and hot air to be discharged from the air outlet 101 through the air guide shroud 7, forming forced convection heat dissipation. The L-shaped connecting piece 5 and the vertical connecting rod 2 have a mating structure that allows the first partition plate 3 and the second partition plate 4 to be connected at different heights between the four vertical connecting rods 2 as needed, so as to realize the setting of high-voltage and low-voltage areas of different sizes as needed.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A power control cabinet with layered protection for strong and weak electrical circuits, comprising a control cabinet (1), characterized in that: Vertical connecting rods (2) are fixedly connected to the middle of the front and rear ends of both sides of the inside of the control cabinet (1). A first partition plate (3) is connected in the middle between the four vertical connecting rods (2). A high-voltage area is set inside the control cabinet (1) and above the first partition plate (3). Three first cable routing holes (301) are set at equal intervals at the rear end of the first partition plate (3). A second partition plate (4) is set at the lower end of the first partition plate (3). A low-voltage area is set inside the control cabinet (1) and below the second partition plate (4). Three second cable routing holes (401) are set at equal intervals at the front end of the second partition plate (4). A wiring area is set between the first partition plate (3) and the second partition plate (4). Vertical partition plates (6) are set on both sides of the middle of the wiring area between the first partition plate (3) and the second partition plate (4).

2. The electrical control cabinet with layered protection for strong and weak electrical circuits according to claim 1, characterized in that: Multiple high-voltage components (106) are fixedly installed inside the high-voltage area at the upper end of the first partition plate (3), and multiple low-voltage components (107) are fixedly installed inside the low-voltage area at the lower end of the second partition plate (4). The high-voltage components (106) and low-voltage components (107) are connected by connecting wires (108) passing through the first wiring hole (301), the wiring area and the second wiring hole (401) in sequence.

3. The electrical control cabinet with layered protection for strong and weak electrical circuits according to claim 1, characterized in that: L-shaped connecting pieces (5) are fixedly connected to the middle front and rear ends of the upper end faces of the first partition plate (3) and the second partition plate (4), and multiple threaded holes (201) are equally spaced on the inner end faces of the four vertical connecting rods (2).

4. The electrical control cabinet with layered protection for strong and weak electrical circuits according to claim 2, characterized in that: The four L-shaped connecting pieces (5) on both sides of the upper end face of the first partition plate (3) and the second partition plate (4) are respectively connected and fixed to the four vertical connecting rods (2) by screws (501) passing through the L-shaped connecting pieces (5) and inserting into the threaded holes (201).

5. The electrical control cabinet with layered protection for strong and weak electrical circuits according to claim 1, characterized in that: Limiting strips (601) are fixedly connected to the lower end face of the first partition plate (3), the upper end face of the second partition plate (4), and both the upper and lower ends of the vertical partition plate (6). The outer surfaces of the first partition plate (3), the vertical partition plate (6), and the second partition plate (4) are all covered with a wave-absorbing material layer.

6. The electrical control cabinet with layered protection for strong and weak electrical circuits according to claim 1, characterized in that: The control cabinet (1) has a first air inlet (103) at the upper middle part of both sides of the end face, and a second air inlet (104) at the lower middle part of both sides of the end face. The first air inlet (103) and the second air inlet (104) are both fixedly connected with a second protective net (105).

7. The electrical control cabinet with layered protection for strong and weak electrical circuits according to claim 1, characterized in that: An air outlet (101) is provided in the middle of the upper surface of the control cabinet (1), and a first protective net (102) is fixedly installed inside the air outlet (101).

8. The electrical control cabinet with layered protection for strong and weak electrical circuits according to claim 6, characterized in that: The upper inner surface of the control cabinet (1) and the lower end of the air outlet (101) are fixedly connected to an air guide hood (7), and the lower end of the air guide hood (7) is fixedly connected to a fan (701).

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