A split control cabinet

Abstract

The utility model discloses a split control cabinet, which belongs to the technical field of control cabinets, and includes an upper cabinet and a lower cabinet that are welded in an integral manner, wherein the interiors of the upper cabinet and the lower cabinet are both hollow-designed, a partition that divides the inner cavity space of the upper cabinet into equal parts is welded at the center of the inner cavity of the upper cabinet, a vent is provided on the top of the partition, wherein temperature sensors are installed on both side walls opposite to the partition, and a PLC is also installed on the top wall of the inner cavity of the upper cabinet, two air vents are symmetrically welded between the upper cabinet and the lower cabinet, and the openings on both sides of the air vents are respectively connected to the inner cavity of the upper cabinet and the inner cavity of the lower cabinet, fans are installed in the two air vents, all power structures need to be connected to external power facilities, and the wind directions of the two fans are opposite. The split control cabinet can effectively cool down at high temperatures to avoid damage to power components and extend service life, and can also stop the fan at low temperatures to avoid continuous operation of the fan and reduce dust entry.

Description

Technical Field

[0001] The utility model belongs to the technical field of control cabinets, and in particular relates to a split type control cabinet. Background Art

[0002] The split frequency conversion control cabinet is mainly used to adjust the working frequency of the equipment, reduce energy loss, start the equipment smoothly, and reduce the damage to the motor caused by the large current generated when the equipment is directly started. It has multiple protection functions such as overload, short circuit, phase loss protection, pump leakage, motor overtemperature and leakage, and complete status display, and has single pump and multi-pump control working modes, multiple main and standby pump switching methods and various starting methods. It is widely used in industrial and agricultural production and various types of buildings. Automatic control of water supply, drainage, fire protection, sprinkler network boosting and HVAC hot and cold water circulation and other occasions.

[0003] In the process of implementing the utility model, the inventors found that there are at least the following problems in the technology: However, the current split-type frequency conversion control cabinet (for example, the patent with application number CN202321598115.6 - a split-type elevator control cabinet) usually does not have the function of active heat dissipation under high temperature conditions, which may cause internal electrical components to be damaged or their lifespan to be shortened due to high temperature.

[0004] To this end, we propose a split control cabinet to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a split control cabinet, which can effectively reduce the temperature at high temperatures to avoid damage to electrical components and extend their service life, and can stop the fan at low temperatures to avoid continuous operation of the fan and reduce dust entry, thereby effectively solving the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A split control cabinet comprises an upper cabinet and a lower cabinet that are welded in one piece, wherein the interiors of the upper cabinet and the lower cabinet are both hollow-designed, a partition is welded at the center of the inner cavity of the upper cabinet to divide its inner cavity space into equal parts, a vent is provided on the top of the partition, temperature sensors are installed on the two opposite side walls of the partition, a PLC is also installed on the top wall of the inner cavity of the upper cabinet, two air vents are symmetrically welded between the upper cabinet and the lower cabinet, and openings on both sides of the air vents are respectively connected to the inner cavity of the upper cabinet and the inner cavity of the lower cabinet, fans are installed in the two air vents, all power structures need to be connected to external power facilities, and the wind directions of the two fans are opposite, two temperature sensors and two fans are electrically connected to the PLC, and air inlets are provided on the two opposite side walls of the lower cabinet.

[0008] As a preferred embodiment, the opening of the inner cavity of the upper cabinet is located on one side wall thereof, and the inner cavity of the upper cabinet is located on one side wall connected to a cabinet door via a plurality of hinges, and a lock core is also installed on the cabinet door; thereby, the inner cavity opening of the upper cabinet is closed by the lock core and the cabinet door.

[0009] As a preferred embodiment, power component mounting seats are installed on both sides of the inner cavity of the upper cabinet; so that all power components can be installed on the two power component mounting seats, and in actual design, if necessary, corresponding holes can be opened in the central part of the partition so that the power components can pass over the partition and be fixed on the two power component mounting seats.

[0010] As a preferred implementation, a control box is fixed to the top wall of the inner cavity of the upper cabinet by screws, and the PLC is located in the control box; so that the control box can protect the PLC.

[0011] As a preferred embodiment, dustproof nets are fixedly installed in both air inlets, thereby playing a certain dustproof role in the inner cavity of the lower cabinet.

[0012] As a preferred implementation scheme, a plurality of heat dissipation holes are formed on both opposite side walls of the upper cabinet, so that the internal space of the upper cabinet is cooled passively through the heat dissipation holes.

[0013] In summary, the technical effects and advantages of the utility model are as follows:

[0014] The split control cabinet monitors the internal ambient temperature in real time through temperature sensors on both sides of the upper cabinet cavity. When the temperature is too high, the PLC drives two electric valves to open two ventilation pipes and drives two fans to run, constructing an air duct inside the upper cabinet to quickly discharge the heat inside the upper cabinet, so that it can effectively cool down at high temperatures to avoid damage to electrical components and extend their lifespan, and can stop the fan at low temperatures to avoid continuous operation of the fan and reduce dust entry;

[0015] For this split control cabinet, when the ambient temperature in the upper cabinet reaches a pre-set high threshold (for example, 50°C), the temperature sensor will transmit an electrical signal to the PLC, causing the PLC to transmit an electrical signal to the two fans to make them run. One of the fans draws air from one of the air inlets and sends it into one side of the inner cavity of the upper cabinet. The wind then passes through the vent, and under the action of the other fan, the air carrying heat is blown out from the other air inlet, thereby completing active heat dissipation. When the ambient temperature in the upper cabinet drops to a pre-set low threshold (for example, 25°C), the PLC transmits an electrical signal to the two fans to stop them, thereby reducing power consumption and reducing the entry of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a vertical cross-sectional view of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified view of the structure at center;

[0019] Figure 4 For this utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0020] In the figure: 1. Upper cabinet; 2. Lower cabinet; 3. Cabinet door; 4. Lock core; 5. Partition; 6. Vent; 7. Temperature sensor; 8. PLC; 9. Control box; 10. Ventilation pipe; 11. Fan; 12. Air inlet; 13. Dust net; 14. Heat dissipation hole; 15. Electrical component mounting base. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 4 , a split control cabinet, comprising an upper cabinet 1 and a lower cabinet 2 which are welded in one piece, wherein the interiors of the upper cabinet 1 and the lower cabinet 2 are both hollow-designed, the opening of the inner cavity of the upper cabinet 1 is located on one side wall thereof, and the side wall where the opening of the inner cavity of the upper cabinet 1 is located is connected with a cabinet door 3 through a plurality of hinges, a lock core 4 is also installed on the cabinet door 3, so that the inner cavity opening of the upper cabinet 1 is closed by the lock core 4 and the cabinet door 3, a plurality of heat dissipation holes 14 are formed on the two opposite side walls of the upper cabinet 1, so that the internal space of the upper cabinet 1 is passively cooled through the heat dissipation holes 14, power component mounting seats 15 are installed on both sides of the inner cavity of the upper cabinet 1, so that all power components can be installed on the two power component mounting seats 15, and in actual design, if necessary, a corresponding aperture can be opened in the central part of the partition 5, so that the power components can pass over the partition 5 and be fixed on the two power component mounting seats 15;

[0023] A partition 5 is welded at the center of the inner cavity of the upper cabinet 1 to divide the inner cavity space into equal parts, and a vent 6 is opened on the top of the partition 5, wherein temperature sensors 7 are installed on both opposite side walls of the partition 5, and a PLC 8 is also installed on the top wall of the inner cavity of the upper cabinet 1, and a control box 9 is fixed to the top wall of the inner cavity of the upper cabinet 1 by screws, and the PLC 8 is located in the control box 9, so that the control box 9 can protect the PLC 8, and two ventilation pipes 10 are symmetrically welded between the upper cabinet 1 and the lower cabinet 2, and the openings on both sides of the ventilation pipe 10 are respectively connected to the inner cavity of the upper cabinet 1 and the lower cabinet The inner cavities of the cabinet body 2 are interconnected, and fans 11 are installed in the two ventilation pipes 10. All power structures need to be connected to external power facilities, and the wind directions of the two fans 11 are opposite. The two temperature sensors 7 and the two fans 11 are electrically connected to the PLC8. The technical principle of the PLC8 can refer to the technical principle of the S7-200 model, and the temperature sensor 7 can refer to the technical principle of the pt100 model. Air inlet holes 12 are opened on the two opposite side walls of the lower cabinet body 2, and dustproof nets 13 are fixedly installed in the two air inlet holes 12, thereby playing a certain dust-proof role for the inner cavity of the lower cabinet body 2.

[0024] The split control cabinet: when installing the power components, all of them are fixed on the power component mounting seats 15 on both sides of the inner cavity of the upper cabinet 1, and then the cabinet door 3 is used to close the opening of the inner cavity of the upper cabinet 1, and the lock core 4 is used to fix the cabinet door 3, so that the power components can operate normally; when the power components are running, they will release heat, which can be passively dissipated through the heat dissipation holes 14 on both sides of the upper cabinet 1. The two temperature sensors 7 will monitor the temperature of the internal environment of the upper cabinet 1 in real time. When the ambient temperature reaches a high threshold value set in advance (for example, 50°C), the The temperature sensor 7 will transmit an electrical signal PLC8, causing PLC8 to transmit an electrical signal to the two fans 11, causing them to operate. One of the fans 11 draws air from one of the air inlets 12 and sends it into one side of the inner cavity of the upper cabinet 1. The wind then passes through the vent 6. Under the action of the other fan 11, the wind carrying heat is blown out from the other air inlet 12, thereby completing active heat dissipation. When the ambient temperature in the upper cabinet 1 drops to a low threshold set in advance (for example, 25°C), PLC8 transmits an electrical signal to the two fans 11 to stop them.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A split control cabinet, comprising an upper cabinet (1) and a lower cabinet (2) welded in one piece, wherein the interiors of the upper cabinet (1) and the lower cabinet (2) are both hollow-shaped, characterized in that: A partition (5) is welded at the center of the inner cavity of the upper cabinet (1) to divide the inner cavity space into equal parts, a vent (6) is provided at the top of the partition (5), temperature sensors (7) are installed on both opposite side walls of the partition (5), and a PLC (8) is also installed on the top wall of the inner cavity of the upper cabinet (1); Two ventilation pipes (10) are symmetrically welded between the upper cabinet (1) and the lower cabinet (2), and the openings on both sides of the ventilation pipes (10) are respectively connected to the inner cavity of the upper cabinet (1) and the inner cavity of the lower cabinet (2), and fans (11) are installed in the two ventilation pipes (10), and the wind directions of the two fans (11) are opposite. The two temperature sensors (7) and the two fans (11) are electrically connected to the PLC (8), and the opposite side walls of the lower cabinet (2) are provided with air inlet holes (12).

2. A split type control cabinet according to claim 1, characterized in that: The opening of the inner cavity of the upper cabinet body (1) is located on one side wall thereof, and the side wall where the opening of the inner cavity of the upper cabinet body (1) is located is connected to a cabinet door (3) via a plurality of hinges, and a lock core (4) is also installed on the cabinet door (3).

3. A split type control cabinet according to claim 1, characterized in that: Electric component mounting seats (15) are installed on both sides of the inner cavity of the upper cabinet (1).

4. A split type control cabinet according to claim 1, characterized in that: A control box (9) is also fixed to the top wall of the inner cavity of the upper cabinet (1) by means of screws, and the PLC (8) is located inside the control box (9).

5. A split type control cabinet according to claim 1, characterized in that: Dust-proof nets (13) are fixedly installed in the two air inlet holes (12).

6. A split type control cabinet according to claim 1, characterized in that: The two opposite side walls of the upper cabinet (1) are both formed with a plurality of heat dissipation holes (14).

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