CN219164428U

CN219164428U - Current type frequency converter of electrical equipment

Info

Publication number: CN219164428U
Application number: CN202223421003.1U
Authority: CN
Inventors: 周显; 许红浪
Original assignee: Wuxi Taiken Electric Co ltd
Current assignee: Wuxi Taiken Electric Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-06-09
Anticipated expiration: 2032-12-17

Abstract

The utility model relates to the technical field of frequency converters, in particular to a current frequency converter of electrical equipment, which comprises a machine shell and a machine body, wherein the machine body is arranged in the machine shell, a concave base is fixed at the bottom end in the machine shell, the upper end of the concave base is fixed at the lower end of the machine body, a synchronous shaft which penetrates through the concave base from left to right rotation is rotationally connected at the inner bottom end of the machine shell, four rotating shafts are rotationally connected at the left and right ends of the inner wall of the machine shell, fan blades are fixed at the inner sides of the upper and lower ends of the rotating shafts, and first belt pulleys are fixedly sleeved at the outer peripheral ends of the three rotating shafts and the left and right peripheral ends of the synchronous shaft at the lower end of the same side; according to the utility model, by starting one driving motor, all the rotating shafts and the fan blades can be driven to rotate together, then the fan blades are used for carrying out air cooling heat dissipation on the device body, so that the heat dissipation effect on the device body is ensured, and only one driving motor is used for rotating all the fan blades, so that the frequency converter is more economical and power-saving in heat dissipation.

Description

Current type frequency converter of electrical equipment

Technical Field

The utility model relates to the technical field of frequency converters, in particular to a current type frequency converter of electrical equipment.

Background

The frequency converter is a power control device which controls the alternating current motor by changing the frequency of a working power supply of the motor by applying a frequency conversion technology and a microelectronic technology. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detecting unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of the output power supply by switching on and off the internal IGBT, and provides the required power supply voltage according to the actual requirement of the motor, thereby achieving the purposes of energy saving and speed regulation;

the current type frequency converter of the prior electrical equipment is characterized in that most of the devices are installed in the device shell, then a plurality of fans are installed in the device shell to cool and dissipate heat of the devices, when the fans work, as each fan needs to be provided with a motor to drive the fan blades to rotate, more motors and power are needed to be consumed when the fans work, the heat dissipation work is not economical enough, and in order to reduce the contact between dust and the devices, a dust screen is usually installed on the device shell to separate the dust, but the dust screen is adhered with more dust along with the continuous increase of the service time, and the dust screen is easy to block up, so that the heat dissipation efficiency of the devices in the device shell is affected, and the heat dissipation effect of the devices is seriously affected.

Disclosure of Invention

The utility model provides a current type frequency converter of electrical equipment, which is beneficial to ensuring the heat dissipation work of the frequency converter to be more economical, ensuring the heat dissipation and ventilation performance of a dust screen and ensuring the heat dissipation effect on a device body.

In order to solve the problems in the prior art, the utility model discloses a current transformer of electrical equipment, which comprises a transformer shell and a transformer body, wherein the transformer body is arranged in the transformer shell;

the inner bottom of the device shell is fixedly provided with a concave base, the upper end of the concave base is fixedly connected with the lower end of the device body, the inner bottom of the device shell is rotationally connected with a synchronous shaft which penetrates through the concave base from left to right, the left and right ends of the inner wall of the device shell are rotationally connected with four rotating shafts, the inner sides of the upper end and the lower end of the rotating shafts are fixedly provided with fan blades, the outer ends of the periphery of the three rotating shafts and the left and right ends of the periphery of the synchronous shaft at the lower end of the same side are fixedly sleeved with first belt pulleys, the middle ends of the periphery of the rotating shafts are fixedly sleeved with second belt pulleys, and the inner sides of the concave base are provided with rotary driving components;

the device is characterized in that a heat dissipation opening is formed in the upper end of the device shell, a dust screen is arranged in the heat dissipation opening, an air net cover is fixed on the periphery of the upper end of the device shell, and an air suction and dust removal assembly is arranged above the dust screen.

Preferably, the first belt pulleys on the same side are connected in a belt mode, and the second belt pulleys on the same side are connected in a belt mode.

Preferably, the rotary driving assembly comprises a driving motor, a main gear and a pinion, wherein the driving motor is fixed at the inner bottom end of the device shell, the main gear is connected with the power end of the driving motor, and the pinion is fixedly sleeved on the periphery of the synchronous shaft and meshed with the main gear.

Preferably, the air suction and dust removal assembly comprises a dust collector, a shaft tube, a dust collection cover, a rotating motor, a driving gear and a driven gear, wherein a top plate is fixed at the upper end of the ventilation net cover, and the dust collector is fixed at the upper end of the top plate.

Preferably, the shaft tube is rotatably connected and communicated with the lower end of the dust collector, the shaft tube downwards rotates to penetrate through the top plate, the dust collection tube is communicated with the lower end of the shaft tube, and the dust collection cover is provided with a plurality of dust collection tubes and communicated with the lower end of the dust collection tube.

Preferably, the rotating motor is fixed at the lower end of the top plate, the driving gear is connected to the power end of the rotating motor, and the driven gear is fixedly sleeved on the periphery of the shaft tube and meshed with the driving gear.

Compared with the prior art, the utility model has the beneficial effects that:

1. by starting a driving motor, all the rotating shafts and the fan blades can be driven to rotate together, then the fan blades are used for carrying out air cooling heat dissipation on the device body, so that the heat dissipation effect on the device body is ensured, and only one driving motor is used for rotating all the fan blades, so that the frequency converter is more economical and power-saving in heat dissipation;

2. through the work of dust catcher, then rotate in the dust screen top through a plurality of rotatory dust hoods, the dust hood can be with the dust absorption on the dust screen to can prevent that the dust from adhering to the dust screen, in order to avoid the dust screen to be blockked up by the dust, do benefit to the normal ventilation heat dispersion of assurance dust screen, but also can accelerate heat transfer exhaust efficiency in the shell through the suction of dust hood, thereby make the heat dispersion of this converter more high-efficient.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure of the utility model;

fig. 3 is a schematic view of the overall external structure of the present utility model.

In fig. 1-3: the cleaner comprises a cleaner shell 1, a cleaner body 2, a concave base 3, a driving motor 4, a main gear 5, a synchronous shaft 6, a pinion 7, a rotating shaft 8, fan blades 9, a first belt pulley 10, a second belt pulley 11, a heat radiation port 12, a dust screen 13, a ventilation screen 14, a top plate 15, a dust collector 16, a shaft tube 17, a rotating motor 18, a driving gear 19, a driven gear 20, a dust collection tube 21 and a dust collection cover 22.

Detailed Description

A current transformer of an electrical device:

as shown in fig. 1, in this embodiment, the device comprises a device shell 1 and a device body 2, the device body 2 is mounted in the device shell 1, a concave base 3 is fixed at the bottom end in the device shell 1, the upper end of the concave base 3 is fixed at the lower end of the device body 2, a synchronous shaft 6 penetrating through the concave base 3 from left to right is rotatably connected at the inner bottom end of the device shell 1, four rotating shafts 8 are rotatably connected at the left and right ends of the inner wall of the device shell 1, fan blades 9 are fixed at the inner sides of the upper and lower ends of the rotating shafts 8, a first belt pulley 10 is fixedly sleeved at the outer peripheral ends of the three rotating shafts 8 at the same side and the left and right ends of the outer periphery of the synchronous shaft 6, a second belt pulley 11 is fixedly sleeved at the middle end of the outer periphery of the rotating shaft 8, a rotary driving assembly is arranged at the inner side of the concave base 3, the first belt pulley 10 at the same side is connected with a belt, the second belt pulley 11 at the same side is connected with a belt, the rotary driving assembly comprises a driving motor 4, a main gear 5 and an auxiliary gear 7, the driving motor 4 is fixedly sleeved at the outer peripheral ends of the main gear 5, and the main gear 4 is fixedly meshed with the main gear 5, and the main gear 5 is fixedly sleeved at the outer peripheral end of the main gear 5;

when the heat dissipation is carried out on the device body 2 in the device shell 1, the driving motor 4 is started and drives the main gear 5 to rotate, the main gear 5 drives the auxiliary gear 7 and the synchronous shaft 6 to rotate, the synchronous shaft 6 drives all the first belt pulleys 10, the second belt pulleys 11 and the rotating shaft 8 to rotate together, so that the rotating shaft 8 synchronously drives all the fan blades 9 to rotate together to work, at the moment, the fan blades 9 can cool the device body 2 by air, the heat dissipation effect on the device body 2 is guaranteed, the device body 2 is composed of an inverter and a flat wave reactor, and when the device body 2 works, the direct current of the inverter is connected with the flat wave reactor in series, so that the direct current is flat, the four-quadrant operation can be realized quickly and frequently, and meanwhile, the closed loop control of the current can be realized, and the good heat dissipation effect of the frequency converter is combined, so that the current type frequency converter has the advantage of high reliability when in work.

As shown in fig. 1, in this embodiment, a heat dissipation port 12 is opened at the upper end of the housing 1, a dust screen 13 is disposed in the heat dissipation port 12, a ventilation screen 14 is fixed at the periphery of the upper end of the housing 1, a dust suction and dust removal assembly is disposed above the dust screen 13, the dust suction and dust removal assembly includes a dust collector 16, a shaft tube 17, a dust suction tube 21, a dust suction hood 22, a rotating motor 18, a driving gear 19 and a driven gear 20, a top plate 15 is fixed at the upper end of the ventilation screen 14, the dust collector 16 is fixed at the upper end of the top plate 15, the shaft tube 17 is rotatably connected and communicated with the lower end of the dust collector 16, the shaft tube 17 is rotatably penetrated through the top plate 15, the dust suction tube 21 is communicated with the lower end of the shaft tube 17, the dust suction hood 22 is provided with a plurality of dust suction and dust removal assemblies, the rotating motor 18 is fixed at the lower end of the top plate 15, the driving gear 19 is connected with the power end of the rotating motor 18, and the driven gear 20 is fixed at the periphery of the top plate 17 and meshed with the shaft tube 19;

when the air-cooled heat dissipation is carried out on the cleaner body 2, the heat generated by heat dissipation is discharged outwards through the heat dissipation opening 12, the dust screen 13 is beneficial to reducing the influence of dust on the cleaner body 2 because the dust screen 13 is arranged in the heat dissipation opening 12, the dust screen 13 is beneficial to reducing the influence of dust on the cleaner body 1, the work of the dust cleaner 16 is carried out, meanwhile, the rotating motor 18 is started to drive the driving gear 19, the driven gear 20 and the shaft tube 17 to rotate, the dust collection tube 21 and the dust collection cover 22 are driven to rotate together when the shaft tube 17 rotates, then the dust collection cover 22 rotates above the dust screen 13 through a plurality of rotating dust collection covers 22, the dust collection cover 22 can absorb the dust on the dust screen 13, and the dust is conveyed into the dust collection tube 21 and the shaft tube 17, so that the dust can be prevented from adhering to the dust screen 13, the dust screen 13 is prevented from being blocked by the dust, the normal ventilation and heat dissipation performance of the dust screen 13 is beneficial to be ensured, and the heat dissipation performance of the frequency converter is more efficient through the efficiency of heat dissipation of the dust collection cover 22 in the accelerator housing 1.

As shown in fig. 1, in this embodiment, a ventilation screen 14 is fixed on the periphery of the upper end of the casing 1, and a top plate 15 is fixed on the upper end of the ventilation screen 14;

since the dust suction pipe 21 and the rotary motor 18 are isolated and protected by the ventilation screen 14 and the top plate 15, the dust suction pipe 21, the driving gear 19 and the driven gear 20 are prevented from being collided with a worker during rotation, unnecessary safety accidents are prevented from occurring, and the normal ventilation performance of the ventilation screen 14 is achieved, so that the normal heat dissipation of the frequency converter is not affected by the ventilation screen 14.

Claims

1. Current transformer of electrical equipment, including ware shell (1) and ware body (2), ware body (2) install in ware shell (1), its characterized in that:

the inner bottom end of the device shell (1) is fixedly provided with a concave base (3), the upper end of the concave base (3) is fixed at the lower end of the device body (2), the inner bottom end of the device shell (1) is rotationally connected with a synchronous shaft (6) which penetrates through the concave base (3) from left to right, the left and right ends of the inner wall of the device shell (1) are rotationally connected with four rotating shafts (8), the inner sides of the upper end and the lower end of the rotating shafts (8) are fixedly provided with fan blades (9), the outer peripheral ends of the three rotating shafts (8) at the same side lower end and the left and right peripheral ends of the synchronous shaft (6) are fixedly sleeved with first belt pulleys (10), the middle peripheral ends of the rotating shafts (8) are fixedly sleeved with second belt pulleys (11), and the inner side of the concave base (3) is provided with a rotary driving assembly;

the device is characterized in that a heat dissipation opening (12) is formed in the upper end of the device shell (1), a dust screen (13) is arranged in the heat dissipation opening (12), an air net cover (14) is fixed on the periphery of the upper end of the device shell (1), and an air suction and dust removal assembly is arranged above the dust screen (13).

2. A current transformer of an electrical device according to claim 1, wherein: the first belt pulleys (10) on the same side are connected in a belt mode, and the second belt pulleys (11) on the same side are connected in a belt mode.

3. A current transformer of an electrical device according to claim 1, wherein: the rotary driving assembly comprises a driving motor (4), a main gear (5) and a pinion (7), wherein the driving motor (4) is fixed at the inner bottom end of the device shell (1), the main gear (5) is connected with the power end of the driving motor (4), and the pinion (7) is fixedly sleeved on the periphery of the synchronous shaft (6) and meshed with the main gear (5).

4. A current transformer of an electrical device according to claim 1, wherein: the dust removal subassembly that breathes in includes dust catcher (16), central siphon (17), dust absorption pipe (21), dust hood (22), rotating electrical machines (18), driving gear (19) and driven gear (20), ventilation screen panel (14) upper end is fixed with roof (15), dust catcher (16) are fixed in roof (15) upper end.

5. A current transformer of an electrical device according to claim 4, wherein: the dust collection device is characterized in that the shaft tube (17) is rotationally connected and communicated with the lower end of the dust collector (16), the shaft tube (17) rotates downwards to penetrate through the top plate (15), the dust collection tube (21) is communicated with the lower end of the shaft tube (17), and the dust collection covers (22) are provided with a plurality of dust collection tubes and are all communicated with the lower end of the dust collection tube (21).

6. A current transformer of an electrical device according to claim 5, wherein: the rotary motor (18) is fixed at the lower end of the top plate (15), the driving gear (19) is connected with the power end of the rotary motor (18), and the driven gear (20) is fixedly sleeved on the periphery of the shaft tube (17) and meshed with the driving gear (19).