High-efficiency heat dissipation electrical control cabinet

Abstract

This utility model relates to the field of electrical control cabinet technology, and in particular to a high-efficiency heat dissipation electrical control cabinet. It includes: a cabinet body, with a top cavity and a lower cavity arranged from top to bottom inside the cabinet. Vertical air ducts are spaced around the inner wall of the lower cavity, connecting the top cavity and the lower cavity. The cabinet body is equipped with a rotatable, airtight door. A top exhaust assembly is installed at the top of the cabinet body to exhaust air from the top cavity. Vertically extending heat sinks are spaced around the outer wall of the cabinet body. An air supply assembly is installed at the bottom of the lower cavity to supply air into the cavity. A filter assembly is installed at the air inlet of the air supply assembly. An active airflow circulation is constructed through the top cavity, the lower cavity, and the air supply and exhaust assemblies to quickly exhaust hot air. The outer heat sinks assist in cooling. The filter assembly has a removable cover and three filter layers, purifying the air and facilitating maintenance. Additionally, the vertical air ducts are designed with a sloping section to reduce drag and prevent accumulation, a sealing element prevents air leakage, and lifting lugs facilitate transportation, ensuring stable operation of the internal components.

Description

Technical Field

[0001] This utility model relates to the field of electrical control cabinet technology, and in particular to a high-efficiency heat dissipation electrical control cabinet. Background Technology

[0002] As the core equipment housing critical electrical components such as circuit breakers, frequency converters, and PLCs, the internal temperature control of electrical control cabinets is of paramount importance. During operation, these electrical components continuously generate heat, causing the internal temperature of the cabinet to rise. If the internal temperature exceeds the tolerance threshold of the components, it will not only reduce the working accuracy and response speed of the components, but may also accelerate the aging of the component insulation layer, and even cause serious faults such as short circuits and burnout, directly affecting the stable operation and service life of the entire system. Therefore, there is an urgent need for an efficient heat dissipation electrical control cabinet to solve the above problems. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a high-efficiency heat dissipation electrical control cabinet, which solves the technical problem of poor heat dissipation effect of existing electrical control cabinets.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: A high-efficiency heat dissipation electrical control cabinet, comprising: The cabinet has, from top to bottom, a top cavity and a receiving cavity. The inner wall of the receiving cavity is provided with several vertical air ducts. The several vertical air ducts are spaced apart along the circumference of the cabinet. The vertical air ducts are used to connect the top cavity and the receiving cavity. A sealed door is rotatably installed on the cabinet. A top-exhaust assembly is provided at the top of the cabinet and is used to exhaust air from the top cavity. A set of heat sinks, wherein the set of heat sinks are spaced apart along the circumference of the cabinet on the outer side wall of the cabinet, and the heat sinks are arranged vertically; An air supply assembly is located at the bottom of the cavity and is used to supply air into the cavity. A filter assembly is installed at the air inlet of the air supply assembly.

[0005] Based on the above structure, the principle of the high-efficiency heat dissipation electrical control cabinet is as follows: When the temperature inside the cavity exceeds a preset value, the air supply component starts, drawing in cold air from the outside. After being purified by the filter component, the clean cold air is evenly delivered into the cavity. Simultaneously, the top exhaust component starts, actively exhausting the air in the top cavity, creating a negative pressure in the top cavity. The pressure difference between the cavity and the top cavity drives the hot air in the cavity to rise along the vertical air duct to the top cavity. The hot air entering the top cavity is directly extracted from the cabinet by the top exhaust component and discharged to the external environment. The hot air in the vertical... As the airflow passes through the duct, the heat sinks on the outer wall of the top cavity conduct heat to the outside air, helping to reduce the overall temperature of the cabinet and further improve heat dissipation efficiency. The filter components are used to intercept dust, impurities and other contaminants before the cold air enters the cavity, preventing contaminants (such as dust) from entering the cavity and preventing the decrease in heat dissipation efficiency caused by dust (such as dust covering the surface of components and hindering heat exchange). It also prevents electrical faults caused by dust (such as short circuits and contact oxidation), ensuring the long-term stable operation of the cabinet.

[0006] Furthermore, in this application, a high-efficiency heat dissipation electrical control cabinet includes a viewing window on the sealed door. As a preferred embodiment of this application, the viewing window in this high-efficiency heat dissipation electrical control cabinet allows for observation of the working status of various components inside the cavity. This eliminates the need to open the sealed door, enabling operators and maintenance personnel to directly observe the working status of the components inside the cavity, thus improving operational safety and convenience.

[0007] Furthermore, in this application, a high-efficiency heat dissipation electrical control cabinet includes a sealing element between the cabinet body and the airtight door, the sealing element being arranged along the circumference of the airtight door. As a preferred embodiment of this application, the sealing element in this high-efficiency heat dissipation electrical control cabinet is used to seal the gap between the cabinet body and the airtight door, preventing cold air supplied to the cavity by the air supply assembly from leaking directly to the outside of the cabinet through the gap between the cabinet body and the airtight door.

[0008] Furthermore, in a high-efficiency heat dissipation electrical control cabinet of this application, the vertical air duct extends vertically to the bottom wall of the cavity, and the vertical air duct has an inclined notch near the bottom wall of the cavity. As a preferred embodiment of this application, the inclined notch is designed to optimize the airflow inlet, guide the hot air in the cavity smoothly into the vertical air duct, reduce airflow resistance, and at the same time prevent dust and other impurities from accumulating at the inlet of the vertical air duct.

[0009] Furthermore, in this application, a high-efficiency heat dissipation electrical control cabinet includes a top exhaust assembly comprising a set of exhaust fans, the air inlets of which are connected to the top cavity. As a preferred embodiment of this application, the high-efficiency heat dissipation electrical control cabinet, through the coordinated action of multiple exhaust fans, creates a uniform negative pressure environment within the top cavity, ensuring that the hot air exhausted from each vertical air duct is captured nearby, eliminating the problem of localized airflow stagnation within the cavity.

[0010] Furthermore, in this application, a high-efficiency heat dissipation electrical control cabinet includes an air supply component comprising a set of air supply fans, the outlets of which are connected to the cavity. As a preferred embodiment of this application, in this high-efficiency heat dissipation electrical control cabinet, the outlets of the air supply fans are directly connected to the cavity, eliminating the need for cold air to overcome resistance along a transfer path, thus effectively improving airflow delivery efficiency.

[0011] Furthermore, in this application, a high-efficiency heat dissipation electrical control cabinet includes a filter assembly comprising: a side-opening filter housing and a sealing cover. The sealing cover is detachably mounted on the side opening of the filter housing. The filter housing contains, from top to bottom, an upper filter layer, a middle filter layer, and a lower filter layer. All three filter layers are detachably mounted within the filter housing. The upper and lower ends of the filter housing are respectively provided with an air outlet and an air inlet. The air outlet is fitted onto the air inlet of a blower fan. As a preferred embodiment of this application, the side-opening, detachable sealing cover and the detachable upper, middle, and lower filter layers facilitate maintenance of the filter assembly by operators, eliminating the need for professional personnel and reducing maintenance labor costs. The three filter layers (upper, middle, and lower) can simultaneously handle complex pollutants such as large dust particles, fine dust, and oil stains, preventing damage to the cabinet from impurities of different particle sizes.

[0012] Furthermore, the high-efficiency heat dissipation electrical control cabinet of this application also includes: a set of lifting lugs, which are spaced apart along the circumference of the cabinet. As a preferred embodiment of this application, the lifting lugs are used for lifting and transporting the electrical control cabinet, facilitating subsequent installation work.

[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects: The purpose of this utility model is to provide a high-efficiency heat dissipation electrical control cabinet. By incorporating a connected top cavity and a storage cavity within the cabinet, along with an air supply component at the bottom of the storage cavity, vertical air ducts on the inner wall, and a top exhaust component, an active airflow circulation is constructed, enabling rapid extraction of hot air. Vertical heat sinks on the outside of the cabinet assist in cooling, improving heat dissipation efficiency. A filter component with a removable cover and three filter layers is installed at the air inlet of the air supply component to purify cold air and facilitate maintenance. The inclined section of the vertical air duct reduces drag and prevents accumulation; the seal between the cabinet and the airtight door prevents air leakage; and the cabinet's lifting lugs facilitate transportation. Ultimately, this solution addresses the problems of poor heat dissipation, weak dust protection, difficult maintenance, airflow obstruction leading to air leakage, and inconvenient transportation in existing electrical control cabinets, ensuring stable operation of the internal components. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a high-efficiency heat dissipation electrical control cabinet according to an embodiment of this application; Figure 2 This is a rear view of a high-efficiency heat dissipation electrical control cabinet according to an embodiment of this application; Figure 3 This is a cross-sectional view of a high-efficiency heat dissipation electrical control cabinet according to an embodiment of this application.

[0015] In the diagram: 1-Cabinet; 10-Vertical air duct; 100-Sloping notch; 11-Top cavity; 12-Cavity; 2-Sealed door; 20-Viewing window; 21-Hinge; 3-Top exhaust assembly; 31-Exhaust fan; 4-Heat sink; 5-Air supply assembly; 51-Air supply fan; 6-Filter assembly; 61-Filter housing; 611-Air outlet; 612-Air inlet; 62-Sealing cover; 63-Upper filter layer; 64-Middle filter layer; 65-Lower filter layer; 7-Sealing element; 8-Lifting lug. Detailed Implementation

[0016] like Figure 1 , 2 As shown in Figure 3, a high-efficiency heat dissipation electrical control cabinet includes: Cabinet 1, wherein the cabinet 1 is provided with, from top to bottom, a top cavity 11 and a receiving cavity 12, wherein the inner wall of the receiving cavity 12 is provided with a plurality of vertical air ducts 10, the plurality of vertical air ducts 10 being arranged at intervals along the circumference of the cabinet 1, the vertical air ducts 10 being used to connect the top cavity 11 and the receiving cavity 12, and a sealed door 2 being rotatably installed on the cabinet 1; Top drawer assembly 3, which is located on the top of the cabinet 1, is used to draw out the air in the top cavity 11; A set of heat sinks 4 are arranged at intervals along the circumference of the cabinet 1 on the outer side wall of the cabinet 1, and the heat sinks 4 are arranged to extend vertically. Air supply assembly 5, which is located at the bottom of cavity 12, is used to supply air into cavity 12; The filter assembly 6 is installed at the air inlet of the air supply assembly 5.

[0017] Based on the above structure, the principle of the high-efficiency heat dissipation electrical control cabinet is as follows: when the temperature inside the cavity 12 exceeds the preset value, the air supply component 5 is activated, drawing in cold air from the outside. After being purified by the filter component 6, the clean cold air is evenly delivered into the cavity 12. The top exhaust component 3 is activated simultaneously to actively exhaust the air in the top cavity 11, creating a negative pressure in the top cavity 11. The pressure difference between the cavity 12 and the top cavity 11 drives the hot air in the cavity 12 to rise along the vertical air duct 10 to the top cavity 11. The hot air entering the top cavity 11 is directly extracted from the cabinet 1 by the top exhaust component 3 and discharged to the external environment. As hot air flows through the vertical air duct 10, the heat sink 4 on the outer wall of the top cavity 11 conducts heat to the outside air, which is then transferred to the inner wall of the cavity 12. This helps to reduce the overall temperature of the cabinet 1 and further improves the heat dissipation efficiency. The filter assembly 6 is used to intercept dust, impurities and other contaminants before the cold air enters the cavity 12, preventing contaminants (such as dust) from entering the cavity 12 and preventing the heat dissipation efficiency from decreasing due to dust (such as dust covering the surface of components and hindering heat exchange). It also prevents electrical faults caused by dust (such as short circuits and contact oxidation) and ensures the long-term stable operation of the cabinet 1.

[0018] In this embodiment, the airtight door 2 is provided with a viewing window 20. The viewing window 20 is used to observe the working status of each component inside the cavity 12. Without opening the airtight door 2, operators and maintenance personnel can directly observe the working status of each component inside the cavity 12, improving the safety and convenience of operation. The airtight door 2 is mounted on the cabinet 1 via hinges 21.

[0019] In this embodiment, a sealing element 7 is provided between the cabinet body 1 and the airtight door 2, and the sealing element 7 is arranged along the circumference of the airtight door 2. The sealing element 7 is used to seal the gap between the cabinet body 1 and the airtight door 2, preventing the cold air supplied by the air supply assembly 5 into the cavity 12 from leaking directly to the outside of the cabinet body 1 through the gap between the cabinet body 1 and the airtight door 2. The sealing element 7 can be a rubber sealing ring.

[0020] In this embodiment, the vertical air duct 10 extends vertically to the bottom wall of the cavity 12, and an inclined notch 100 is provided on the vertical air duct 10 near the bottom wall of the cavity 12. The inclined notch 100 is designed to optimize the airflow inlet, guide the hot air from the cavity 12 smoothly into the vertical air duct 10, reduce airflow resistance, and at the same time prevent dust and other impurities from accumulating at the inlet of the vertical air duct 10.

[0021] In this embodiment, the top exhaust assembly 3 includes a set of exhaust fans 31, the air inlets of which are connected to the top cavity 11. Through the coordinated action of multiple exhaust fans 31, a uniform negative pressure environment is formed within the top cavity 11, ensuring that the hot air discharged from each vertical air duct 10 can be captured nearby, eliminating the problem of local airflow stagnation within the cavity 12. The set of exhaust fans 31 consists of eight units, arranged in a "2*4" configuration.

[0022] In this embodiment, the air supply assembly 5 includes a set of air supply fans 51, the air outlets of which are connected to the cavity 12. Since the air outlets of the air supply fans 51 are directly connected to the cavity 12, the cold air does not need to overcome the resistance of a transfer path, effectively improving airflow delivery efficiency. The set of air supply fans 51 consists of eight units, arranged in a "2*4" configuration.

[0023] In this embodiment, the filter assembly 6 includes: a filter box 61 with a side opening and a sealing cover 62. The sealing cover 62 is detachably installed on the side opening of the filter box 61. The filter box 61 is provided with an upper filter layer 63, a middle filter layer 64 and a lower filter layer 65 from top to bottom. The upper filter layer 63, the middle filter layer 64 and the lower filter layer 65 are all detachably installed in the filter box 61. The upper and lower ends of the filter box 61 are respectively provided with an air outlet 611 and an air inlet 612. The air outlet 611 is fitted and installed at the air inlet of the fan 51. The design of the side-opening, detachable sealing cover 62 and the detachable upper filter layer 63, middle filter layer 64, and lower filter layer 65 facilitates maintenance of the filter assembly 6 by operators, eliminating the need for professional personnel and reducing maintenance labor costs. The three filter layers 63, 64, and 65 can simultaneously handle complex pollutants such as large dust particles, fine dust, and oil stains, preventing damage to the cabinet 1 caused by impurities of different particle sizes. The sealing cover 62 is installed on the filter box 61 with screws (not shown), and a rubber sealing ring is provided between the filter box 61 and the sealing cover 62. The upper filter layer 63 can use a HEPA filter (high-efficiency particulate filter), the middle filter layer 64 can use activated carbon filter cotton, and the lower filter layer 65 can use a metal wire mesh.

[0024] In this embodiment, the system further includes a set of lifting lugs 8, which are spaced apart along the circumference of the cabinet 1. The lifting lugs 8 are used for lifting and transporting the electrical control cabinet, facilitating subsequent installation. Each set of lifting lugs 8 consists of four lugs, located at the top of the cabinet 1.

[0025] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of this utility model without creative effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A high efficiency heat dissipating electrical control cabinet characterized by: include: Cabinet (1), the cabinet (1) is provided with a top cavity (11) and a cavity (12) from top to bottom. The inner wall of the cavity (12) is provided with a number of vertical air ducts (10). The number of vertical air ducts (10) are arranged at intervals along the circumference of the cabinet (1). The vertical air ducts (10) are used to connect the top cavity (11) and the cavity (12). The cabinet (1) is rotatably equipped with a sealed door (2). Top drawer assembly (3), the top drawer assembly (3) is located on the top of the cabinet (1), the top drawer assembly (3) is used to draw out the air in the top cavity (11); A set of heat sinks (4) are arranged at intervals along the circumference of the cabinet (1) on the outer side wall of the cabinet (1), and the heat sinks (4) are arranged to extend vertically. An air supply assembly (5) is provided at the bottom of the cavity (12) and is used to supply air into the cavity (12); A filter assembly (6) is installed at the air inlet of the air supply assembly (5).

2. The high-efficiency heat-dissipation electrical control cabinet according to claim 1, characterized in that: The airtight door (2) is provided with a viewing window (20).

3. The high-efficiency heat dissipating electrical control cabinet according to claim 1, characterized in that: A sealing element (7) is provided between the cabinet (1) and the airtight door (2), and the sealing element (7) is arranged along the circumference of the airtight door (2).

4. The high-efficiency heat dissipating electrical control cabinet of claim 1, wherein: The vertical air duct (10) extends vertically to the bottom wall of the cavity (12), and the vertical air duct (10) is provided with an inclined notch (100) near the bottom wall of the cavity (12).

5. The high-efficiency heat dissipating electrical control cabinet according to claim 1, wherein: The top exhaust assembly (3) includes: a set of exhaust fans (31), the air inlet of which is connected to the top cavity (11).

6. The high-efficiency heat dissipating electrical control cabinet of claim 1, wherein: The air supply assembly (5) includes: a set of air supply fans (51), the air outlet of which is connected to the cavity (12).

7. The high-efficiency heat dissipating electrical control cabinet according to claim 6, characterized in that: The filter assembly (6) includes: a filter box (61) with a side opening and a sealing cover (62). The sealing cover (62) is detachably installed on the side opening of the filter box (61). The filter box (61) is provided with an upper filter layer (63), a middle filter layer (64) and a lower filter layer (65) from top to bottom. The upper filter layer (63), the middle filter layer (64) and the lower filter layer (65) are all detachably installed in the filter box (61). The upper and lower ends of the filter box (61) are respectively provided with an air outlet (611) and an air inlet (612). The air outlet (611) is fitted and installed at the air inlet of the fan (51).

8. The high-efficiency heat dissipation electrical control cabinet according to claim 1, characterized in that: Also includes: A set of hanging lugs (8) are provided on the cabinet (1) at intervals along the circumference of the cabinet (1).

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