Low-voltage reinforced ventilation measure switch cabinet

Abstract

The utility model discloses a low-voltage reinforced ventilation measure switch cabinet, which comprises a cabinet main body, the cabinet main body comprises a bottom plate and a filter panel, the bottom plate is perpendicular to the filter panel, the bottom plate is provided with a bottom air inlet hole, the cabinet main body is provided with a fan groove, the filter panel is provided with filter screen holes, and the filter screen holes are communicated with the fan groove. The filtering panel is further provided with an air inlet and an air outlet. The cabinet body further comprises a top air outlet. At least more than one ventilation condition is set, cold air can be introduced through the bottom air inlet hole, or heat inside the cabinet body can be released through the air inlet, and hot air flow is discharged through the fan or the top air outlet; the filter screen holes absorb heat, the heat dissipation area is increased, ventilation paths are diversified, the heat dissipation efficiency is excellent, and the heat dissipation effect is obvious.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a low-pressure switch cabinet with enhanced ventilation measures. Background Art

[0002] Switchgear is an electrical equipment, which is mainly used for opening and closing, controlling and protecting electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. It is usually composed of a steel plate casing, circuit breakers, disconnectors, load switches, transformers, protection devices, etc., and is a key equipment for power system protection and control. Various components in the switchgear will generate a lot of heat during operation. If the heat inside the switchgear cannot be dissipated in time and effectively, the internal temperature of the equipment will be too high, which will affect the normal operation of the equipment and even cause failures. High temperature will also accelerate the aging of internal components of the equipment, reduce the insulation performance and reliability of the equipment, and increase maintenance costs and downtime.

[0003] Traditional switch cabinets mainly rely on natural convection and radiation of the switch cabinet casing to dissipate internal heat, or set ventilation holes on the switch cabinet casing to increase air circulation and promote heat dissipation. However, the heat dissipation effect of natural heat dissipation is relatively limited and is suitable for switch cabinets with lower heat generation.

[0004] A "switch cabinet with high efficiency heat dissipation" disclosed in Chinese patent documents, with the public number CN216215328U,

[0005] It includes a switch cabinet body, a fan groove, an inlet fan, an exhaust fan, a connecting pipe, a connecting piece, a heat dissipation pipe and a heat dissipation plate. The fan groove is opened at the top and bottom of the right side of the switch cabinet body, the inlet fan is arranged at the bottom of the right side of the switch cabinet body, and the exhaust fan is arranged at the top of the right side of the switch cabinet body. The left sides of the inlet fan and the exhaust fan both extend to the inside of the fan groove. The heat dissipation method of this design is single and the heat dissipation efficiency is low. Summary of the invention

[0006] The utility model mainly solves the problem that the ventilation condition of the switch cabinet is single and the heat dissipation effect is not obvious, and specifically discloses a low-pressure switch cabinet with enhanced ventilation measures, which has excellent heat dissipation efficiency and obvious heat dissipation effect.

[0007] To achieve the above objectives, the following technical solutions are proposed:

[0008] A low-pressure switch cabinet with enhanced ventilation measures includes a cabinet body, the cabinet body includes a bottom plate and a filter panel, the bottom plate is perpendicular to the filter panel, the bottom plate is provided with a bottom air inlet, the cabinet body is provided with a fan groove, the filter panel is provided with a filter mesh, the filter panel is also provided with an air inlet and an air outlet, and the cabinet body also includes a top air outlet. At least one ventilation condition is set, cold air can be introduced through the bottom air inlet, or the inside of the cabinet can be heated through the air inlet, and the hot air flow is discharged through the fan or the top air outlet; the filter mesh absorbs heat, increases the heat dissipation area, and the ventilation paths are diverse, with excellent heat dissipation efficiency and obvious heat dissipation effect.

[0009] Preferably, the filter panels are arranged on the front and rear sides of the cabinet body, and are attached to the cabinet body to increase the heat dissipation area, absorb and disperse the heat generated by the operation of the electrical equipment, and the fan grooves are symmetrically opened on the cabinet body. A fan is arranged in the fan grooves to realize forced convection inside the cabinet body, and quickly discharge the heat accumulated inside the cabinet body. The symmetrical fan layout ensures the balance of air flow and avoids the occurrence of local overheating. At the same time, the design of the fan grooves facilitates the installation and maintenance of the fan, reducing the maintenance cost.

[0010] Preferably, the filter mesh holes are circular holes with inconsistent diameters, and the filter mesh holes are distributed on the filter panel. The irregular hole shape can break the linearity of air flow, causing the air to generate more turbulence and eddy currents when passing through the cabinet, thereby enhancing the heat exchange effect and improving the heat dissipation efficiency.

[0011] Preferably, the bottom air inlet holes are circular holes, and the bottom air inlet holes are evenly arranged on the bottom plate, which is conducive to the inhalation of cold air and provides sufficient cooling source for the interior of the cabinet.

[0012] Preferably, the air inlet and the air outlet are rectangles of the same size, and are arranged on both sides of the filtered panel. The air inlet and the air outlet are symmetrical to each other to form a stable air circulation path and improve heat dissipation efficiency. The air inlet and the air outlet are provided with dust covers to prevent external dust from directly invading the interior of the cabinet and maintain the cleanliness of the internal environment.

[0013] Preferably, the air inlet is located at the lower side of the filter panel, and the air outlet is located at the upper side of the filter panel. According to the characteristics of thermal expansion and contraction of gas, the cold air input from the bottom squeezes the hot air located at the upper part of the cabinet, which can ensure that the hot air heated by the equipment is discharged from the cabinet through the air outlet and the fan during the rising process, forming a natural convection effect; optimizing the air circulation path, improving the heat dissipation efficiency, and making full use of physical principles to enhance the stability and safety of the internal environment of the switch cabinet.

[0014] Preferably, the top air outlet is provided with a dustproof net, and the top air outlet is evenly opened on the top of the cabinet. The dustproof net is fixed to the top air outlet, thereby enhancing the dustproof ability of the switch cabinet and preventing dust from entering the interior of the cabinet through the air outlet. At the same time, the dustproof net is also easy to clean and replace, thereby keeping the air outlet unobstructed and ensuring the normal operation of the cooling system.

[0015] Preferably, the cabinet body includes a frame circuit breaker, a multi-function meter and a button indicator light. The frame circuit breaker, the multi-function meter and the button indicator light are arranged on the main panel of the cabinet body. The main panel is located directly in front of the cabinet body and is used to control and adjust the operation of electrical equipment in the cabinet and indicate the operating status of the electrical equipment.

[0016] Preferably, the cabinet body is provided with a hinge, and the main panel is fixed to the cabinet body by the hinge, which enhances the stability of the structure, enables the main panel to be flexibly opened and closed, and optimizes space utilization efficiency and convenience of daily operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side sectional view of a low-pressure switch cabinet with enhanced ventilation measures.

[0018] Figure 2 This is a front view of a low-pressure switch cabinet with enhanced ventilation measures.

[0019] Figure 3 This is the rear view of a low-pressure enhanced ventilation switch cabinet.

[0020] Figure numbers: cabinet body 1; fan groove 2; filter panel 3; filter mesh 4; air inlet 5; bottom plate 6; frame circuit breaker 7; bottom air inlet 8; air outlet 9; top air outlet 10; dust net 11; hinge 12; dust cover 13; multi-function meter 14; button indicator light 15; main panel 16; fan 17. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The specific embodiments of the present utility model are as follows:

[0023] The utility model discloses a low-pressure switch cabinet with enhanced ventilation measures, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a cabinet body 1, the cabinet body 1 includes a bottom plate 6 and a filter panel 3, the bottom plate 6 is perpendicular to the filter panel 3, the bottom plate 6 is provided with a bottom air inlet 8, the cabinet body 1 is provided with a fan groove 2, the filter panel 3 is provided with a filter mesh 4, the filter panel 3 is also provided with an air inlet 5 and an air outlet 9, the cabinet body 1 also includes a top air outlet 10; the filter panel 3 is arranged on the front and rear sides of the cabinet body, fitted to the cabinet body 1, and the fan groove 2 is symmetrically opened In the cabinet body 1, a fan 17 is provided in the fan groove 2; the top air outlet 10 is provided with a dustproof net 11, and the top air outlet 10 is evenly opened on the top of the cabinet. The dustproof net 11 is fixed to the top air outlet 10, and cold air is introduced through the bottom air inlet 8, or the interior of the cabinet is heated through the air inlet, and the hot air flow is discharged through the fan 17 or the top air outlet 10; the filter mesh 4 absorbs heat, increases the heat dissipation area, has diverse ventilation paths, has excellent heat dissipation efficiency, and has obvious heat dissipation effect.

[0024] The bottom plate 6 is provided with bottom air inlet holes 8, which are circular holes and are evenly arranged on the bottom plate 6. During the operation of the switch cabinet, a large amount of heat will be generated due to the heating of the internal electrical equipment. If this heat cannot be discharged in time, the temperature inside the switch cabinet will rise, which will affect the normal operation and life of the electrical equipment. The bottom air inlet hole serves as the entrance of cold air, inputting cold air into the switch cabinet. The cold air enters from the bottom, squeezes upward the hot air generated by the operation of the electrical equipment, and discharges it from the top air outlet 10 or the fan 17. This natural convection or forced convection method can effectively take away the heat inside the switch cabinet, reduce the equipment temperature, and ensure the stable operation of the electrical equipment.

[0025] The air inlets 5 are symmetrically distributed on both sides of the filter panel 3. The air inlets 5, the bottom air inlet 8 and the air outlet 9 or fan 17 of the switch cabinet together constitute an air circulation path; cold air enters from the air inlet 5, squeezes the hot air upward, and discharges it from the air outlet 9 and the top air outlet 10; this natural convection or forced convection method can form a continuous air circulation, improve the heat dissipation efficiency, and prevent heat from accumulating inside the switch cabinet; the high temperature environment inside the switch cabinet will cause damage to electrical equipment, such as accelerating equipment aging and reducing insulation performance. The air inlet 5 continuously introduces cold air to keep the temperature inside the switch cabinet relatively stable, thereby protecting the electrical equipment from high temperature damage. At the same time, the air inlet 5 can also prevent humid gas from entering the switch cabinet, keep the internal environment dry and clean, and further protect the safe operation of electrical equipment.

[0026] The filter panel 3 is arranged on the front and rear sides of the cabinet body 1, and the filter mesh 4 is distributed on the filter panel 3; when the switch cabinet is in operation, the electrical components inside it will generate a certain amount of heat, which needs to be dissipated through air convection. The filter panel 3 can absorb part of the heat and exchange heat with the electrical components. The filter mesh 4 can increase the contact area with the hot air and enhance the heat exchange effect between the filter panel 3 and the heat generated by the electrical components, thereby effectively reducing the internal temperature and optimizing the heat dissipation effect. This process is of great significance for protecting electrical components from high temperature damage and extending their service life; at the same time, the filter mesh 4 can absorb water mist, moisture, etc., to prevent them from penetrating into the electrical components inside the switch cabinet, causing circuit damage, etc., reducing the occurrence rate of failures, and can effectively avoid electrical failures or short circuits caused by moisture intrusion, thereby improving the overall protection level and reliability of the switch cabinet.

[0027] The cabinet body 1 is provided with a fan groove 2, which is symmetrically opened on the cabinet body 1. A fan 17 of the same specification is installed in the fan groove 2. When the fan 17 rotates, it generates airflow through rotation to take away the heat generated by the electrical components inside the switch cabinet, thereby keeping the temperature inside the cabinet within a normal range and ensuring the normal operation of the electrical equipment. The cooling fan 17 accelerates the transfer of heat by circulating air, avoiding damage to the electrical components due to overheating, while reducing the probability of electrical defects and extending the service life of the equipment.

[0028] The design of the groove can also reduce the noise and vibration of the fan 17 during operation to a certain extent. It can make the interaction between the fan 17 blades and the air more stable, and reduce the noise caused by unstable airflow. At the same time, the damping effect of the groove also helps to reduce the vibration caused by the rotation of the fan 17, and improve the overall operating stability of the switch cabinet; the synergistic effect of the fan groove 2 and the fan 17 makes the heat dissipation system inside the switch cabinet more efficient and stable; the groove can effectively reduce noise and vibration, fix and protect the fan 17, and at the same time; the fan 17 is easy to disassemble, repair, and replace, optimizes the airflow path of the fan 17, and improves the heat dissipation efficiency; ensures the stable dissipation of the heat generated by the operation of the electrical components in the switch cabinet, and provides a strong guarantee for the safe power supply of the power system.

[0029] The air outlet 9 is located on the upper side of the switch cabinet, and is symmetrically opened on the filter panels 3 on the front and rear sides of the switch cabinet. The electrical equipment in the switch cabinet will generate a lot of heat during operation. If the heat cannot be discharged in time, the temperature of the equipment will rise, affecting the performance and life of the equipment, and even causing failures. The air outlet 9 and the air inlet 5 together form an air circulation system. Cold air enters the switch cabinet through the air inlet 5, flows through the electrical equipment to absorb heat and becomes hot air, and then is discharged from the air outlet 9, ensuring the continuous renewal of the air in the cabinet and the effective transfer of heat.

[0030] The design of the air inlet 5 and the air outlet 9 ensures continuous circulation of air flow in the cabinet. When the equipment load is high and more heat is generated, the air intake can be increased or the fan speed can be increased to accelerate heat dissipation; conversely, the air intake can be reduced or the fan speed can be lowered to save energy.

[0031] Both the air inlet 5 and the air outlet 9 are provided with a dust cover 13, which can effectively prevent external dust, particles, hair and other impurities from entering the interior of the device. By reducing the accumulation of dust and impurities, the dust cover 13 helps to reduce the wear and corrosion of the internal parts of the device, thereby extending the service life of the device; due to the existence of the dust cover 13, the cleaning cycle inside the device can be relatively extended, reducing the maintenance cost and time cost caused by frequent cleaning. The design of the dust cover 13 matches the appearance of the device, which not only can play a dust-proof role, but also can enhance the overall aesthetics of the device.

[0032] The top air outlet 10 and the air outlet 9 are used as the main heat dissipation channels and are arranged on the top of the switch cabinet body. The top air outlet 10, the air outlet 9 and the air inlet system cooperate with each other to circulate the heat generated by the operation of the electrical components in the switch cabinet and discharge it out of the switch cabinet through the air flow, thereby ensuring the continuous renewal of the air inside the equipment and the effective transfer of heat, effectively reducing the temperature inside the equipment and ensuring the normal operation of the equipment.

[0033] The air inlet 5 and the bottom air inlet 8 are arranged on the lower side of the switch cabinet body, and the air outlet 9 and the top air outlet 10 are arranged on the upper side of the switch cabinet body. Since the density of cold air is greater than that of hot air, the cold air will naturally sink, while the hot air will rise. In the switch cabinet, the air inlet 5 is arranged at the bottom to ensure that the cold air can smoothly enter and flow through the electrical equipment; while the air outlet 9 is arranged at the top, it is convenient for the hot air to rise and be discharged naturally. This natural convection method helps to accelerate the transfer and discharge of heat and improve the heat dissipation efficiency; from a thermodynamic point of view, heat is always transferred from the high temperature area to the low temperature area. In the switch cabinet, the electrical equipment is the main heat source, and the surrounding air temperature is relatively high. Setting the air inlet 5 at the bottom and introducing cold air can form a large temperature gradient and promote the rapid transfer of heat. At the same time, the air outlet 9 discharges hot air at the top, which reduces the residence time of hot air in the cabinet and further improves the heat dissipation efficiency.

[0034] A frame circuit breaker 7, a multi-function meter 14 and a button indicator light 15 are provided on the front panel of the switch cabinet body. The main panel 16 is located directly in front of the cabinet body 1. The frame circuit breaker 7, the multi-function meter 14 and the button indicator light 15 are arranged on the main panel 16 of the cabinet body 1.

[0035] The frame circuit breaker 7 is one of the core components in the switch cabinet, and is mainly used for circuit on-off control and protection. When abnormal conditions such as short circuit, overload, ground fault, etc. occur in the circuit, the frame circuit breaker 7 can quickly cut off the circuit to prevent the fault from expanding and protect electrical equipment from damage.

[0036] The multifunction meter 14 is an electric power measuring instrument that integrates multiple functions. The multifunction meter 14 can measure power parameters such as voltage, current, power, power factor, frequency, etc. in real time, and provide accurate data support for the operation monitoring of the power system; through the built-in data processing function, the multifunction meter 14 can organize, sort, filter, and count the measured data to help users better understand and analyze the operating status of the power system; combined with preset thresholds and algorithms, the multifunction meter 14 can monitor the abnormal conditions of the power system in real time, and issue early warning signals when potential faults are found, helping users take timely measures to avoid faults.

[0037] The button indicator light 15 is mainly used in the switch cabinet to indicate the operating status of the equipment and provide an operation interface. It indicates the operating status of the equipment, such as closing status, opening status, fault status, etc., through lights of different colors, which helps the operator to quickly understand the current status of the equipment and make correct operation decisions; the button part is usually used to execute specific operation commands, such as closing, opening, resetting, etc. By pressing the corresponding button, the operator can remotely control the equipment; when the equipment encounters an abnormal situation or requires special attention, the indicator light will send out a specific signal (such as flashing, changing color, etc.) to remind the operator to pay attention to safety and take corresponding safety measures.

[0038] The utility model mainly solves the problem that the ventilation conditions of the switch cabinet are single and the heat dissipation effect is not obvious. It specifically discloses a low-pressure switch cabinet with enhanced ventilation measures, which is provided with at least one ventilation condition. Cold air can be introduced through the bottom air inlet 8, or the inside of the cabinet can be heated through the air inlet, and the hot air flow is discharged through the fan 17 or the top air outlet 10; the filter mesh 4 absorbs heat, increases the heat dissipation area, has various ventilation paths, has excellent heat dissipation efficiency, and has obvious heat dissipation effect.

[0039] The cabinet body 1 is provided with a hinge 12 , and the main panel 16 is fixed to the cabinet body 1 via the hinge 12 , providing structural support for the opening and closing of the cabinet door.

[0040] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-pressure enhanced ventilation switch cabinet, characterized in that: The cabinet body (1) comprises a cabinet body, wherein the cabinet body (1) comprises a bottom plate (6) and a filter panel (3), wherein the bottom plate (6) is perpendicular to the filter panel (3), the bottom plate (6) is provided with a bottom air inlet hole (8), the cabinet body (1) is provided with a fan groove (2), the filter panel (3) is provided with a filter mesh hole (4), the filter panel (3) is further provided with an air inlet (5) and an air outlet (9), and the cabinet body (1) further comprises a top air outlet (10).

2. A low-pressure enhanced ventilation switch cabinet according to claim 1, characterized in that: The filter panel (3) is arranged at the front and rear sides of the cabinet body and is fitted to the cabinet body (1); the fan groove (2) is symmetrically arranged on the cabinet body (1); and a fan (17) is arranged in the fan groove (2).

3. A low-pressure enhanced ventilation switch cabinet according to claim 1 or 2, characterized in that: The filter mesh holes (4) are circular holes with inconsistent diameters, and the filter mesh holes (4) are distributed on the filter panel (3).

4. A low-pressure enhanced ventilation switch cabinet according to claim 2, characterized in that: The bottom air inlet holes (8) are circular holes, and the bottom air inlet holes (8) are evenly arranged on the bottom plate (6).

5. A low-pressure enhanced ventilation switch cabinet according to claim 1, 2 or 4, characterized in that: The air inlet (5) and the air outlet (9) are rectangles of the same size; the air inlet (5) and the air outlet (9) are arranged on both sides of the filtering panel (3); the air inlet (5) and the air outlet (9) are symmetrical to each other; and the air inlet (5) and the air outlet (9) are provided with dust covers (13).

6. A low-pressure enhanced ventilation switch cabinet according to claim 5, characterized in that: The air inlet (5) is located on the lower side of the filter panel (3), and the air outlet (9) is located on the upper side of the filter panel (3).

7. The low-pressure enhanced ventilation switch cabinet according to claim 3 is characterized in that: The top air outlet (10) is provided with a dustproof net (11); the top air outlet (10) is evenly opened at the top of the cabinet; and the dustproof net (11) is fixed to the top air outlet (10).

8. The low-pressure enhanced ventilation switch cabinet according to claim 1, characterized in that: The cabinet body (1) comprises a frame circuit breaker (7), a multifunctional meter (14) and a button indicator light (15); the frame circuit breaker (7), the multifunctional meter (14) and the button indicator light (15) are arranged on a main panel (16) of the cabinet body (1); and the main panel (16) is located directly in front of the cabinet body (1).

9. A low-pressure enhanced ventilation switch cabinet according to claim 8, characterized in that: The cabinet body (1) is provided with a hinge (12), and the main panel (16) is fixed to the cabinet body (1) via the hinge (12).

Images