High-temperature-resistant frequency converter

Abstract

The utility model discloses a high temperature resistant frequency converter, which comprises a shell and a frequency converter core arranged in the shell, an air inlet and an air outlet are arranged on the back of the shell, fan blades are rotatably connected in the shell corresponding to the air outlet, and a dust filtering assembly is arranged in the shell corresponding to the air inlet. The dust filtering assembly comprises an assembly frame, a dust filter screen, a sliding column, a reciprocating lead screw and a moving table, namely, the assembly frame is fixedly connected into the shell, the dust filter screen is fixedly connected into the assembly frame, the sliding column is fixedly connected to the position, located on one side of the dust filter screen, in the assembly frame, and the moving table is slidably connected to the sliding column. A reciprocating lead screw is in threaded connection with the moving table, a brush table is fixedly connected to the moving table and abuts against the dust filter screen, in addition, a motor is fixedly connected into the shell, and the motor is in power connection with the fan blades and the reciprocating lead screw. The utility model relates to the technical field of frequency converters, and has the characteristics of excellent heat dissipation effect and long service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter technical field, specifically is a kind of high-temperature-resistant frequency converter. BACKGROUND

[0002] With the development of science and technology, as an important electrical control equipment, frequency converter is widely used in industrial production, household appliances, transportation and other fields, frequency converter realizes the accurate control to motor speed by adjusting the working frequency of motor, can effectively save energy, improve production efficiency, however, in the long running process, frequency converter generates a lot of heat, if unable to heat in time, it is easy to cause the internal temperature of frequency converter to be too high, thereby affecting its performance, reducing service life, even leading to equipment failure;

[0003] At present, the common frequency converter heat dissipation system on market mostly adopts air cooling mode, heat is taken away by internal fan, however, dust, impurities and other small particulate matters in air can enter frequency converter interior along with airflow, deposit on key components, cause heat dissipation effect to reduce, even cause circuit failure or other damage, for this reason, traditional air cooling heat dissipation system is often difficult to meet the needs of efficient heat dissipation and long-term stable operation. SUMMARY

[0004] In view of the above deficiencies existing in prior art, the utility model aims at providing a kind of frequency converter that heat dissipation effect is excellent, service life is high.

[0005] The utility model discloses the technical scheme that is used for realizing the above-mentioned purpose is: a kind of high-temperature-resistant frequency converter, including shell and the frequency converter movement inside being located in the shell, the back of the shell is equipped with air inlet and air outlet, the shell is rotationally connected with fan blade corresponding the air outlet in, the shell is equipped with dust filter assembly corresponding the air inlet in;

[0006] The dust filter assembly includes assembly frame, dust filter screen, sliding column, reciprocating screw and motion platform, the assembly frame is fixedly connected in the shell, the dust filter screen is fixedly connected in the assembly frame, the sliding column is fixedly connected in the assembly frame on the side of the dust filter screen, the motion platform is slidably connected on the sliding column, the reciprocating screw is threadedly connected on the motion platform, the brush platform is fixedly connected on the motion platform, and the brush platform is in contact with the dust filter screen.

[0007] The motor is fixedly connected in the shell, and the motor is power-connected with the fan blade and reciprocating screw.

[0008] In the above technical scheme, the air outlet is located at the top of the shell, and the air inlet is located at the bottom of the shell.

[0009] In the above technical scheme, the support is fixedly connected to the shell corresponding to the air outlet, and the fan blade is rotatably connected to the support.

[0010] In the above technical scheme, the driving shaft is fixedly connected to the fan blade, one end of the reciprocating lead screw is fixedly connected with the input shaft, the worm gear is fixedly connected to the input shaft, the worm is rotatably connected in the shell, the worm is meshingly connected with the worm gear, the transmission shaft is fixedly connected to the worm, the transmission shaft is power-connected with the driving shaft, and the motor is power-connected with the transmission shaft or the driving shaft.

[0011] In the above technical scheme, the driving shaft is fixedly connected with the driving sprocket, the transmission shaft is fixedly connected with the driven sprocket, and the driving sprocket and the driven sprocket are connected through the synchronous belt.

[0012] In the above technical scheme, the shell comprises a front end shell and a rear end shell fixedly connected with the front end shell, and the air inlet and the air outlet are arranged on the rear end shell.

[0013] Compared with the prior art, the frequency converter can be driven by the motor to rotate the fan blade, the heat inside the shell can be dissipated through the rotating fan blade, the heat accumulation inside the frequency converter can be avoided, the frequency converter can be prevented from being damaged, the air outside can enter the frequency converter through the air inlet, the dust in the air can be filtered through the dust filter screen, the dust can be prevented from entering the frequency converter, the service life of the frequency converter can be prolonged, and the reciprocating lead screw can be driven to rotate synchronously when the motor drives the fan blade to rotate, so that the moving platform can drive the brush to reciprocally clean the dust filter screen, the dust accumulation can be avoided, the air inlet amount can be prevented from being reduced, and the heat dissipation effect can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a structural schematic view of the utility model from another angle;

[0016] Figure 3 It is a structural schematic view of the rear end shell in the utility model;

[0017] Figure 4 It is a structural schematic view of the rear end shell from another angle in the utility model;

[0018] Figure 5 It is a structural schematic view of the dust filtering assembly in the utility model.

[0019] In the figure: 100 shell, 101 air inlet, 102 air outlet, 103 front end shell, 104 rear end shell, 201 bracket, 202 fan blade, 203 drive shaft, 300 dust filter assembly, 301 assembly frame, 302 dust filter screen, 303 sliding column, 304 reciprocating screw, 305 moving platform, 306 brush platform, 307 input shaft, 308 worm gear, 309 worm, 310 transmission shaft, 400 motor, 501 driving synchronous wheel, 502 driven synchronous wheel, 503 synchronous belt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figure 1 -5, a kind of high temperature resistant frequency converter, including shell 100 and frequency converter movement in shell 100 interior, wherein, the back of shell 100 is equipped with air inlet 101 and air outlet 102, shell 100 inside corresponding air outlet 102 is fixedly connected with bracket 201, bracket 201 is rotatably connected with fan blade 202 on it;

[0022] Furthermore, shell 100 inside corresponding air inlet 101 is also equipped with dust filter assembly 300, dust filter assembly 300 includes assembly frame 301, dust filter screen 302, sliding column 303, reciprocating screw 304 and moving platform 305, i.e., assembly frame 301 is fixedly connected in shell 100 interior, dust filter screen 302 is fixedly connected in assembly frame 301, sliding column 303 is fixedly connected in assembly frame 301 and located at the top side of dust filter screen 302, moving platform 305 is slidably connected on sliding column 303, reciprocating screw 304 is threadedly connected on moving platform 305, brush platform 306 is also fixedly connected on moving platform 305, and brush platform 306 is in contact with dust filter screen 302;

[0023] Moreover, the motor 400 is fixedly connected in the shell 100, the motor 400 is power connected with the fan blade 202 and the reciprocating screw rod 304, specifically, the driving shaft 203 is fixedly connected on the fan blade 202, the input shaft 307 is fixedly connected on one end of the reciprocating screw rod 304, the worm wheel 308 is fixedly connected on the input shaft 307, the worm 309 is rotatably connected in the shell 100, the worm 309 is meshedly connected with the worm wheel 308, the transmission shaft 310 is fixedly connected on the worm 309, the transmission shaft 310 is power connected with the driving shaft 203, the motor 400 is power connected with the transmission shaft 310 or the driving shaft 203, so that the fan blade 202 can be driven to rotate by the motor 400, so that the external air enters the shell 100 from the air inlet 101, and then carries the heat in the shell 100 and is discharged from the air outlet 102, so as to reduce the heat in the shell 100 and avoid damage to the frequency converter caused by high temperature, further, the driving shaft 203 is fixedly connected with the driving sprocket 501, the transmission shaft 310 is fixedly connected with the driven sprocket 502, and the driving sprocket 501 and the driven sprocket 502 are connected by the synchronous belt 503;

[0024] In addition, when the external air enters the shell 100, the dust in the air can be filtered by the dust filter screen 302, so that the dust is prevented from adhering to the frequency converter core, the heat dissipation is reduced, and the service life of the frequency converter is affected, and the motor 400 can also drive the reciprocating screw rod 304 to rotate through the synchronous belt 503, so that the moving platform 305 carries the brush platform 306 to continuously clean the dust filter screen 302, so that the dust is prevented from adhering to the dust filter screen 302 in a large amount, causing the air inlet to be reduced and affecting the heat dissipation effect;

[0025] Further, the air outlet 102 is located at the top of the shell 100, and the air inlet 101 is located at the bottom of the shell 100, because hot air rises, the air outlet 102 located at the top can accelerate the exhaust of hot air, and the air inlet 101 located at the bottom facilitates the use of gravity to clean the dust;

[0026] Further, the shell 100 includes a front end shell 103 and a rear end shell 104 fixedly connected with the front end shell 103, the air inlet 101 and the air outlet 102 are arranged on the rear end shell 104, so that the motor 400 and other structures are arranged on the rear end shell 104, so that the frequency converter core and the heat dissipation component are separated, and the whole is convenient to maintain and overhaul.

[0027] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0028] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A high-temperature-resistant frequency converter, comprising a shell (100) and a frequency converter movement arranged inside the shell (100), characterized in that: The back of the shell (100) is provided with an air inlet (101) and an air outlet (102), the shell (100) is rotatably connected with a fan blade (202) corresponding to the air outlet (102), and the shell (100) is provided with a dust filter assembly (300) corresponding to the air inlet (101). The dust filter assembly (300) comprises an assembly frame (301), a dust filter screen (302), a sliding column (303), a reciprocating screw (304) and a moving table (305), the assembly frame (301) is fixedly connected in the shell (100), the dust filter screen (302) is fixedly connected in the assembly frame (301), the sliding column (303) is fixedly connected on one side of the dust filter screen (302) in the assembly frame (301), the moving table (305) is slidably connected on the sliding column (303), the reciprocating screw (304) is threadedly connected on the moving table (305), and the brush table (306) is fixedly connected on the moving table (305) and abuts against the dust filter screen (302). The shell (100) is fixedly connected with a motor (400), and the motor (400) is power-connected with the fan blade (202) and the reciprocating screw (304).

2. The high temperature inverter of claim 1, wherein: The air outlet (102) is located at the top of the shell (100), and the air inlet (101) is located at the bottom of the shell (100).

3. The high temperature inverter of claim 1, wherein: The shell (100) is fixedly connected with a support (201) corresponding to the air outlet (102), and the fan blade (202) is rotatably connected on the support (201).

4. The high temperature inverter of claim 1, wherein: The driving shaft (203) is fixedly connected on the fan blade (202), one end of the reciprocating screw (304) is fixedly connected with an input shaft (307), the worm gear (308) is fixedly connected on the input shaft (307), the worm (309) is rotatably connected in the shell (100), the worm (309) is meshedly connected with the worm gear (308), the transmission shaft (310) is fixedly connected on the worm (309), the transmission shaft (310) is power-connected with the driving shaft (203), and the motor (400) is power-connected with the transmission shaft (310) or the driving shaft (203).

5. The high temperature inverter of claim 4, wherein: The driving shaft (203) is fixedly connected with a driving synchronous wheel (501), the transmission shaft (310) is fixedly connected with a driven synchronous wheel (502), and the driving synchronous wheel (501) and the driven synchronous wheel (502) are connected through a synchronous belt (503).

6. The high temperature tolerant frequency inverter of claim 1, wherein: The shell (100) comprises a front end shell (103) and a rear end shell (104) fixedly connected with the front end shell (103), and the air inlet (101) and the air outlet (102) are arranged on the rear end shell (104).

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