High altitude type variable frequency control device

Abstract

The utility model relates to the field of plateau electrical equipment especially relates to a high altitude type frequency conversion control device, the high altitude type frequency conversion control device includes cabinet, liquid storage bucket, impeller, drive assembly and cooling bucket, the inside installation of cabinet is used for the cooling plate of supporting electronic components, one side of cabinet is installed and is used for the liquid storage bucket of storing coolant, the inside installation of liquid storage bucket has the impeller, drive assembly is installed between cabinet and liquid storage bucket, and drive assembly drives the rotation of impeller and transports the coolant inside liquid storage bucket to the inside of cooling plate for the cooling of electronic components in the inside of cabinet. The high altitude type frequency conversion control device provided by the utility model realizes automatic starting heat dissipation through the design of drive assembly, and specifically through the automatic triggering heat dissipation of paraffin phase change: when the temperature of cabinet reaches the melting point of paraffin, the volume expansion of paraffin drives the rotation of impeller, and paraffin solidifies and resets after temperature reduction, and the system automatically stops.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude electrical equipment, and in particular to a high-altitude frequency conversion control device. Background Technology

[0002] In high-altitude areas (usually above 2000 meters), electrical equipment faces many challenges due to special environmental conditions such as low air pressure, low density, and thin oxygen. Among these challenges, the attenuation of heat dissipation efficiency is particularly prominent and has become a key issue restricting the stable operation of high-power electrical equipment such as frequency conversion control systems.

[0003] To address the issue of reduced heat dissipation efficiency due to thin air at high altitudes, conventional manufacturers increase the airflow for electrical cabinets. However, increased ventilation leads to more dust particles entering the cabinets, causing dust accumulation on electrical components and high-density dust in confined spaces. This further exacerbates the risk of creepage and electrical clearance breakdown. Furthermore, the fluctuating temperatures at high altitudes, coupled with increased ventilation, make temperature control and protection within the cabinets more challenging. Low temperatures can cause condensation on components, aging and embrittlement of plastic and rubber parts, increasing operational risks.

[0004] Therefore, it is necessary to provide a new high-altitude variable frequency control device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-altitude variable frequency control device.

[0006] The high-altitude variable frequency control device provided by this utility model includes: a cabinet, a liquid storage tank, an impeller, a drive assembly, and a cooling tank. The cabinet has a cooling plate installed inside to support electronic components. A liquid storage tank for storing coolant is installed on one side of the cabinet. An impeller is installed inside the liquid storage tank. A drive assembly is installed between the cabinet and the liquid storage tank. The drive assembly drives the impeller to rotate and transport the coolant inside the liquid storage tank to the cooling plate for cooling the electronic components inside the cabinet. A cooling tank is provided above the liquid storage tank for cooling the coolant after it absorbs heat.

[0007] Preferably, the drive assembly includes: a drive cylinder, a piston rod, and a rack. The drive cylinder is symmetrically fixedly connected inside the cabinet. The piston rod is installed inside the drive cylinder. The other end of the piston rod passes through the side wall of the cabinet and is fixedly connected to a connecting plate. The rack is fixedly connected to the middle of the connecting plate.

[0008] Preferably, a mounting bracket is fixedly connected to the side wall of the cabinet, a vertical rod is rotatably connected inside the mounting bracket, a drive gear is fixedly connected to the top of the vertical rod and meshes with a rack, a speed-changing gear is fixedly connected to the bottom of the vertical rod, a driven gear is meshed with one side of the speed-changing gear, a rotating rod is rotatably connected inside the mounting bracket, and the top of the rotating rod is fixedly connected to the driven gear.

[0009] Preferably, a connecting cylinder is connected to one side of the liquid storage tank, and the rotating rod and the end away from the driven gear extend into the connecting cylinder and are fixedly connected to the impeller.

[0010] Preferably, the top of the connecting cylinder is connected to an inlet pipe, the other end of which is connected to the inlet of the cooling plate, and the outlet of the cooling plate is connected to an outlet pipe, the other end of which is connected to the top of the cooling tank.

[0011] Preferably, a thermistor sensor for measuring the temperature of the coolant is fixedly installed inside the cooling tank, and the bottom of the cooling tank is connected to the storage tank through a connecting pipe, with a control valve installed inside the connecting pipe.

[0012] Preferably, the outer diameter of the transmission gear is larger than the outer diameter of the driving gear and also larger than the outer diameter of the driven gear.

[0013] Preferably, the drive cylinder is filled with high-purity paraffin wax, and the cylinder body is made of high-strength metal.

[0014] Compared with related technologies, the high-altitude variable frequency control device provided by this utility model has the following advantages:

[0015] The design of the drive components enables automatic heat dissipation when the temperature rises. Specifically, heat dissipation is automatically triggered by the phase change of paraffin wax: when the cabinet temperature reaches the melting point of paraffin wax, the volume of paraffin wax expands and drives the impeller to rotate. After the temperature drops, the paraffin wax solidifies and resets, and the system automatically stops. No electric drive is required, making it suitable for areas with unstable power supply at high altitudes.

[0016] The cabinet and liquid cooling system form a closed space, and heat is dissipated only through the contact between the cooling plate and the components. There is no need to open a large area of ​​ventilation openings, which prevents high-altitude dust and particulate matter from entering the cabinet from the source. Compared with conventional solutions that increase the ventilation volume, dust accumulation can be reduced, the risk of creepage and electrical clearance breakdown can be significantly reduced, and the insulation level of the equipment can be kept stable.

[0017] Because no strong airflow is required for ventilation, the internal temperature fluctuation of the cabinet is small, effectively preventing condensation on the surface of components. At the same time, it reduces the direct impact of cold air on plastic and rubber parts, slowing down the aging rate and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 A schematic diagram of the high-altitude frequency converter control device provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the cabinet.

[0020] Figure 3 for Figure 2 The diagram shows the structural features of the cabinet side.

[0021] Figure 4 for Figure 3 The diagram shows the structure at point A.

[0022] Figure 5 for Figure 3 The diagram shows the structure of the inlet pipe.

[0023] The following are the labels in the diagram: 1. Cabinet; 2. Cooling plate; 3. Liquid storage tank; 4. Impeller; 5. Cooling tank; 6. Drive cylinder; 7. Piston rod; 8. Rack; 9. Mounting bracket; 10. Drive gear; 11. Speed ​​change gear; 12. Driven gear; 13. Rotating rod; 14. Connecting cylinder; 15. Liquid inlet pipe; 16. Liquid outlet pipe; 17. Thermistor sensor; 18. Control valve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 5A high-altitude variable frequency control device is disclosed, comprising: a cabinet 1, a liquid storage tank 3, an impeller 4, a drive assembly, and a cooling tank 5. The cabinet 1 contains a cooling plate 2 for supporting electronic components. A liquid storage tank 3 for storing coolant is installed on one side of the cabinet 1. An impeller 4 is installed inside the liquid storage tank 3. A drive assembly is installed between the cabinet 1 and the liquid storage tank 3, driving the impeller 4 to rotate and transport the coolant from the liquid storage tank 3 to the cooling plate 2 for cooling the electronic components inside the cabinet 1. A cooling tank 5 is located above the liquid storage tank 3 for cooling the coolant after it absorbs heat. The drive assembly includes: a drive cylinder 6, a piston rod 7, and a rack 8. The drive cylinder 6 is symmetrically fixedly connected inside the cabinet 1. A piston rod 7 is installed inside the drive cylinder 6. The other end of each piston rod 7 passes through the side wall of the cabinet 1 and is fixedly connected to a connecting plate. A rack 8 is fixedly connected to the middle of the connecting plate. A rack 8 is fixedly connected to the side wall of the cabinet 1. The mounting frame 9 has a vertical rod rotatably connected inside. The top of the vertical rod is fixedly connected to a drive gear 10, which meshes with a rack 8. The bottom of the vertical rod is fixedly connected to a speed-changing gear 11, and one side of the speed-changing gear 11 meshes with a driven gear 12. The mounting frame 9 has a rotating rod 13 rotatably connected inside. The top of the rotating rod 13 is fixedly connected to the driven gear 12. One side of the liquid storage tank 3 is connected to a connecting cylinder 14. The rotating rod 13 and the end away from the driven gear 12 extend into the connecting cylinder 14 and are fixedly connected to the impeller 4. The top of the connecting cylinder 14 is connected to an inlet pipe 15. The other end of the inlet pipe 15 is connected to the liquid inlet of the cooling plate 2. The liquid outlet of the cooling plate 2 is connected to an outlet pipe 16. The other end of the outlet pipe 16 is connected to the top of the cooling tank 5. The outer diameter of the speed-changing gear 11 is larger than the outer diameter of the drive gear 10 and larger than the outer diameter of the driven gear 12. The drive cylinder 6 is filled with high-purity paraffin wax, and the cylinder body is made of high-strength metal.

[0027] It should be noted that: the drive cylinder 6 adopts a sealed design, the piston rod 7 has a sealing ring on the part extending out of the cylinder body, the high-purity paraffin is specially designed, and the phase change temperature range is 30-45 degrees; the top of the mounting bracket 9 is equipped with a protective cover, and the drive gear 10, the transmission gear 11 and the driven gear 12 are all located inside the protective cover.

[0028] Please see Figure 3 and Figure 4 The cooling tank 5 is equipped with a thermistor sensor 17 for measuring the temperature of the coolant. The bottom of the cooling tank 5 is connected to the storage tank 3 through a connecting pipe, and a control valve 18 is installed inside the connecting pipe.

[0029] It should be noted that both the thermistor sensor 17 and the control valve 18 are existing, mature devices.

[0030] The working principle of the high-altitude frequency converter control device provided by this utility model is as follows:

[0031] The electronic components inside cabinet 1 generate heat during operation, causing the temperature inside the cabinet to gradually rise. When the temperature is conducted to the drive cylinders 6 symmetrically installed inside cabinet 1, the high-purity paraffin filling the cylinder undergoes a phase change due to heat absorption. When the temperature is below the melting point of paraffin, the paraffin is solid and the piston rod 7 is in a contracted state. After the temperature reaches the melting point, the paraffin gradually transforms into a liquid state, expands in volume, and generates thrust to push the piston rod 7 to move outward along the axis of the drive cylinder 6.

[0032] The other end of the piston rod 7 passes through the side wall of the cabinet 1 and drives the rack 8 fixed in the middle to move horizontally synchronously through the connecting plate; the rack 8 meshes with the drive gear 10 in the mounting bracket 9 and pushes the drive gear 10 to rotate; the drive gear 10 is fixed at the top of the vertical rod and drives the vertical rod to rotate as the rack 8 moves, thereby driving the speed-changing gear 11 at the bottom of the vertical rod to rotate synchronously.

[0033] The variable speed gear 11 meshes with the driven gear 12, and the outer diameter of the variable speed gear 11 is larger than that of the driven gear 12. Through the speed-increasing effect, the driven gear 12 drives the rotating rod 13 to rotate rapidly. The end of the rotating rod 13 away from the driven gear 12 extends into the connecting cylinder 14 on one side of the liquid storage tank 3 and is fixedly connected to the impeller 4. The rapid rotation of the driven gear 12 drives the impeller 4 to rotate synchronously and rapidly, generating centrifugal force. The coolant in the liquid storage tank 3 is drawn into the inlet of the connecting cylinder 14 by the impeller 4 and pumped into the inlet of the cooling plate 2 through the liquid inlet pipe 15 connected to the top of the connecting cylinder 14. The cooling plate 2 is in close contact with the surface of the electronic components and has multiple serpentine flow channels inside. When the coolant flows in the flow channels, it quickly absorbs the heat generated by the components through heat conduction.

[0034] After absorbing heat, the high-temperature coolant flows out from the outlet of the cooling plate 2 and is transported through the outlet pipe 16 to the cooling tank 5 located above the storage tank 3. The cooling tank 5 gradually cools down the high-temperature coolant through natural heat dissipation fins. The thermistor sensor 17 installed inside the cooling tank 5 monitors the coolant temperature in real time. When the temperature drops to a preset threshold, the sensor sends an electrical signal to the control valve 18, triggering the valve to open. The bottom of the cooling tank 5 is connected to the storage tank 3 through a connecting pipe. Because the cooling tank 5 is located above, the coolant flows back to the storage tank 3 through the connecting pipe under the action of gravity, completing one cycle.

[0035] When the heat of the electronic components inside the cabinet 1 decreases and the temperature inside the cabinet drops below the solidification point of paraffin, the paraffin in the drive cylinder 6 gradually solidifies from a liquid state to a solid state, shrinks in volume, and pulls the piston rod 7 to move in the opposite direction and reset. The piston rod 7 drives the rack 8 to move in the opposite direction and reset through the connecting plate, which in turn drives the drive gear 10, the speed change gear 11, and the driven gear 12 to rotate in the opposite direction, eventually causing the impeller 4 to stop rotating, the coolant circulation to stop, and the system to enter standby mode, waiting to restart when the temperature rises again.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-altitude variable frequency control device, characterized in that, include: Cabinet (1), the interior of which is equipped with a cooling plate (2) for supporting electronic components; A liquid storage tank (3) is installed on one side of the cabinet (1) for storing coolant; Impeller (4) is installed inside the liquid storage tank (3); A drive assembly is installed between the cabinet (1) and the liquid storage tank (3). The drive assembly drives the impeller (4) to rotate and transport the coolant inside the liquid storage tank (3) to the inside of the cooling plate (2) to cool the electronic components inside the cabinet (1). A cooling tank (5) is provided above the liquid storage tank (3) for cooling the coolant after it has absorbed heat.

2. The high-altitude variable frequency control device according to claim 1, characterized in that, The drive assembly includes a drive cylinder (6), a piston rod (7), and a rack (8). The drive cylinder (6) is symmetrically fixedly connected inside the cabinet (1). The piston rod (7) is installed inside the drive cylinder (6). The other end of the piston rod (7) passes through the side wall of the cabinet (1) and is fixedly connected to a connecting plate. The rack (8) is fixedly connected to the middle of the connecting plate.

3. The high-altitude variable frequency control device according to claim 2, characterized in that, A mounting bracket (9) is fixedly connected to the side wall of the cabinet (1). A vertical rod is rotatably connected inside the mounting bracket (9). A drive gear (10) is fixedly connected to the top of the vertical rod, and the drive gear (10) meshes with the rack (8). A speed-changing gear (11) is fixedly connected to the bottom of the vertical rod. A driven gear (12) meshes with one side of the speed-changing gear (11). A rotating rod (13) is rotatably connected inside the mounting bracket (9). The top of the rotating rod (13) is fixedly connected to the driven gear (12).

4. The high-altitude variable frequency control device according to claim 3, characterized in that, One side of the storage tank (3) is connected to a connecting cylinder (14), and the rotating rod (13) and the end away from the driven gear (12) extend into the connecting cylinder (14) and are fixedly connected to the impeller (4).

5. The high-altitude variable frequency control device according to claim 4, characterized in that, The top of the connecting cylinder (14) is connected to the liquid inlet pipe (15), and the other end of the liquid inlet pipe (15) is connected to the liquid inlet of the cooling plate (2). The liquid outlet of the cooling plate (2) is connected to the liquid outlet pipe (16), and the other end of the liquid outlet pipe (16) is connected to the top of the cooling barrel (5).

6. The high-altitude variable frequency control device according to claim 1, characterized in that, The cooling tank (5) is equipped with a thermistor sensor (17) for measuring the temperature of the coolant. The bottom of the cooling tank (5) is connected to the storage tank (3) through a connecting pipe, and a control valve (18) is installed inside the connecting pipe.

7. The high-altitude variable frequency control device according to claim 3, characterized in that, The outer diameter of the speed change gear (11) is greater than the outer diameter of the driving gear (10) and also greater than the outer diameter of the driven gear (12).

8. The high-altitude variable frequency control device according to claim 2, characterized in that, The interior of the drive cylinder (6) is filled with high-purity paraffin, and the cylinder body is made of high-strength metal.

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