Frequency converter heat dissipation mechanism
By incorporating a stirring rod and blades into the inverter's heat dissipation mechanism, combined with drain pipes and valve control, the problem of excessively high coolant temperature was solved, achieving effective cooling and ensuring the normal operation of the inverter.
Patent Information
- Application Number
- CN202422770852.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The existing water cooling system of the frequency converter has an excessively high coolant temperature after long-term use, which affects the cooling effect.
The motor drives the stirring rod and stirring blades to stir the coolant in the cooling tank, and the flow of coolant is controlled by the drain pipe and valve to prevent high temperature coolant from entering the storage tank. The fan and heat sink are used for heat dissipation.
It effectively reduces the coolant temperature, maintains the cooling effect, prevents the coolant temperature in the reservoir from rising, and ensures the normal operation of the frequency converter.
Smart Images

Figure CN223553633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of frequency converter technology, specifically to a frequency converter heat dissipation mechanism. Background Technology
[0002] Variable frequency drives (VFDs) are a common type of device in the field of motor control. They are also known as variable frequency drives, drive controllers, or variable frequency regulators. VFDs are power control devices that use variable frequency technology and microelectronics to control AC motors by changing the frequency of the motor's operating power supply. They can convert AC power of a fixed frequency into AC power of an adjustable frequency to control the speed and output power of AC motors.
[0003] Chinese patent CN216218522U discloses a heat dissipation device that uses an electric fan for air cooling and heat sinks and coolant for water cooling to improve the heat dissipation effect of the inverter. While the water cooling device in this technology can indeed dissipate heat, in actual use, the water in the tank may become too hot after circulating for a period of time due to the high heat generated by the inverter, which may affect the cooling effect. Therefore, a heat dissipation mechanism for the inverter is proposed to improve the above-mentioned problem. Utility Model Content
[0004] The purpose of this invention is to provide a heat dissipation mechanism for a frequency converter. The mechanism uses a motor to drive a stirring rod, which in turn drives the stirring blades to cool the water in the cooling tank. This solves the problem that the water in the tank becomes too hot after circulating for a period of time due to the high heat generated by the frequency converter, which may affect the cooling effect.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model relates to a heat dissipation mechanism for a frequency converter, comprising a support plate and a cooling assembly. A housing is mounted on the support plate. The cooling assembly includes a cooling tank and a cooling pipe. A liquid storage tank is mounted at the bottom of the cooling tank and is mounted on the support plate. A first through hole is provided on the cooling tank, and a second through hole is provided on the liquid storage tank. A motor is mounted on the cooling tank, and a stirring rod is mounted on the output shaft of the motor. Three sets of stirring blades are mounted on the outer wall of the stirring rod. A square groove is provided at the bottom of the cooling tank, and a drain pipe is mounted on the square groove. The drain pipe is located inside the liquid storage tank, and a valve is mounted on the outer wall of the drain pipe.
[0007] Furthermore, the placement box has a first round hole and a second round hole. A water pump is placed inside the liquid storage tank. A water inlet pipe is installed at one end of the cooling pipe. The water inlet pipe passes through the first round hole and the first through hole in sequence. The end of the water inlet pipe away from the cooling pipe is located inside the cooling tank. A water outlet pipe is installed at the other end of the cooling pipe. The water outlet pipe passes through the second round hole and the second through hole in sequence. The end of the water outlet pipe away from the cooling pipe is connected to the water outlet of the water pump.
[0008] Furthermore, the cooling tank is equipped with a liquid inlet, and the storage tank is equipped with a liquid outlet on its side wall.
[0009] Furthermore, a heat sink is installed inside the placement box, and a cooling pipe is located inside the placement box and passes through the heat sink.
[0010] Furthermore, a circular groove is provided on the placement box, and an L-shaped plate is installed on the inner wall of the placement box. A fan is installed on the L-shaped plate and is located inside the circular groove.
[0011] Furthermore, a dustproof net is installed on the placement box, and the dustproof net is located outside the circular groove.
[0012] This utility model has the following beneficial effects:
[0013] This invention incorporates a cooling component within a frequency converter's heat dissipation mechanism. By starting a motor, the motor drives a stirring rod and stirring blades to move simultaneously. The stirring blades agitate and cool the coolant in the cooling tank. Furthermore, since the coolant in the cooling tank flows to the storage tank via a drain pipe controlled by a valve, the coolant in the cooling tank does not mix with the coolant in the storage tank when the temperature is too high. This ensures that the temperature of the coolant in the storage tank does not rise, thus solving the problem that the high heat generated by the frequency converter can cause the water in the tank to overheat after circulating for a period of time, potentially affecting the cooling effect.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the inverter's heat dissipation device.
[0016] Figure 2 This is a side cross-sectional view of the inverter's heat dissipation device.
[0017] Figure 3 This is a front sectional view of the inverter's heat dissipation device.
[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the inverter's heat dissipation device.
[0019] Figure 5 This is a schematic diagram of the exploded structure of the cooling component.
[0020] Figure 6 This is a schematic diagram of the connection structure for placing the housing, the first circular hole, the second circular hole, the circular slot, the heat sink, and the fan.
[0021] In the diagram: 1. Support plate; 2. Placement box; 201. First round hole; 202. Second round hole; 203. Round groove; 3. Cooling assembly; 301. Cooling box; 302. Liquid storage tank; 303. First through hole; 304. Second through hole; 305. Motor; 306. Stirring rod; 307. Stirring blade; 308. Square groove; 309. Drain pipe; 310. Valve; 311. Water pump; 312. Cooling pipe; 313. Water inlet pipe; 314. Water outlet pipe; 315. Liquid inlet; 316. Liquid outlet; 4. Heat sink; 5. L-shaped plate; 6. Fan; 7. Dustproof net. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-6 This utility model provides a technical solution: a frequency converter heat dissipation mechanism, including a support plate 1 and a heat dissipation component 3, which makes the placement box 2 more stable when a placement box 2 is installed on the support plate 1.
[0024] The heat dissipation assembly 3 includes a cooling box 301 and a cooling pipe 312. A liquid storage tank 302 is installed at the bottom of the cooling box 301. With the liquid storage tank 302 installed on the support plate 1, the cooling assembly 3 can operate normally. A first through hole 303 is opened on the cooling box 301, and a second through hole 304 is opened on the liquid storage tank 302. When the cooling assembly needs to operate, with a motor 305 installed on the cooling box 301, the motor 305 is started. With a stirring rod 306 installed on the output shaft of the motor 305, the motor 305 drives the stirring rod 306 to move. With three sets of stirring blades 307 installed on the outer wall of the stirring rod 306, the stirring rod 306 drives the stirring blades 307 to move, thereby stirring and cooling the coolant in the cooling box 301.
[0025] A square groove 308 is provided at the bottom of the cooling tank 301. A drain pipe 309 is installed on the square groove 308. The drain pipe 309 is located inside the liquid storage tank 302. The drain pipe 309 is used for the flow of coolant in the cooling tank 301 and the liquid storage tank 302. A valve 310 is installed on the outer wall of the drain pipe 309. The valve 310 is used to control the drain pipe 309. When the temperature of the coolant in the cooling tank 301 is too high, the valve 310 is closed to prevent the coolant in the cooling tank 301 from mixing with the coolant in the liquid storage tank 302, thus ensuring the cooling effect.
[0026] The placement box 2 has a first circular hole 201 and a second circular hole 202. A water pump 311 is placed in the liquid storage tank 302. The water pump 311 is used to transfer the coolant in the liquid storage tank 302 to the cooling pipe 312, thereby cooling the heat sink 4. A water inlet pipe 313 is installed at one end of the cooling pipe 312. The water inlet pipe 313 passes through the first circular hole 201 and the first through hole 303 in sequence. The end of the water inlet pipe 313 away from the cooling pipe 312 is located in the cooling box 301. A water outlet pipe 314 is installed at the other end of the cooling pipe 312. The water outlet pipe 314 passes through the second circular hole 202 and the second through hole 304 in sequence. The end of the water outlet pipe 314 away from the cooling pipe 312 is connected to the water outlet of the water pump 311.
[0027] The cooling tank 301 is equipped with a liquid inlet 315 to ensure the entry of coolant. The side wall of the liquid storage tank 302 is equipped with a liquid outlet 316 to discharge coolant in a timely manner, so as to avoid the coolant from generating impurities due to long-term circulation and to ensure the cleanliness and smooth flow of the cooling system.
[0028] With heat sink 4 installed inside the placement box 2 and cooling pipe 312 located inside the placement box 2 and penetrating the heat sink 4, the cooling pipe 312 can cool the heat sink 4 over a wider area, avoiding the operation of the frequency converter due to excessive temperature.
[0029] The placement box 2 has a circular groove 203. An L-shaped plate 5 is installed on the inner wall of the placement box 2. A fan 6 is installed on the L-shaped plate 5. The fan 6 is located in the circular groove 203 and is used to achieve the effect of air cooling for the frequency converter.
[0030] A dustproof net 7 is installed on the placement box 2. The dustproof net 7 is located outside the circular groove 203. The dustproof net 7 is used to block dust and prevent excessive dust from affecting the normal operation of the frequency converter.
[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A frequency converter heat dissipation mechanism, comprising a support plate (1), wherein a housing (2) is mounted on the support plate (1), characterized in that, It also includes a cooling assembly (3), which includes a cooling tank (301) and a cooling pipe (312). A liquid storage tank (302) is installed at the bottom of the cooling tank (301). The liquid storage tank (302) is mounted on a support plate (1). A first through hole (303) is opened on the cooling tank (301), and a second through hole (304) is opened on the liquid storage tank (302). A motor (304) is installed on the cooling tank (301). 5) A stirring rod (306) is installed on the output shaft of the motor (305). Three sets of stirring blades (307) are installed on the outer wall of the stirring rod (306). A square groove (308) is opened at the bottom of the cooling box (301). A drain pipe (309) is installed on the square groove (308). The drain pipe (309) is located in the liquid storage tank (302). A valve (310) is installed on the outer wall of the drain pipe (309).
2. The inverter heat dissipation mechanism according to claim 1, characterized in that, The placement box (2) has a first circular hole (201) and a second circular hole (202). A water pump (311) is placed in the liquid storage tank (302). A water inlet pipe (313) is installed at one end of the cooling pipe (312). The water inlet pipe (313) passes through the first circular hole (201) and the first through hole (303) in sequence. The end of the water inlet pipe (313) away from the cooling pipe (312) is located in the cooling box (301). A water outlet pipe (314) is installed at the other end of the cooling pipe (312). The water outlet pipe (314) passes through the second circular hole (202) and the second through hole (304) in sequence. The end of the water outlet pipe (314) away from the cooling pipe (312) is connected to the water outlet of the water pump (311).
3. The inverter heat dissipation mechanism according to claim 1, characterized in that, The cooling tank (301) is equipped with a liquid inlet (315), and the liquid storage tank (302) is equipped with a liquid outlet (316) on its side wall.
4. The inverter heat dissipation mechanism according to claim 2, characterized in that, The placement box (2) is equipped with a heat sink (4), and the cooling pipe (312) is located inside the placement box (2) and passes through the heat sink (4).
5. The inverter heat dissipation mechanism according to claim 2, characterized in that, The placement box (2) has a circular groove (203) and an L-shaped plate (5) is installed on the inner wall of the placement box (2). A fan (6) is installed on the L-shaped plate (5) and the fan (6) is located in the circular groove (203).
6. The inverter heat dissipation mechanism according to claim 2, characterized in that, A dustproof net (7) is installed on the placement box (2), and the dustproof net (7) is located outside the circular groove (203).
Citation Information
Patent Citations
Frequency converter heat dissipation mechanism
CN216218522U