阅读说明：本技术 一种带有自循环冷风装置的高压变频器功率单元柜 (High-voltage inverter power unit cabinet with self-circulation cold air device ) 是由 石伟劭 利新辉 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种带有自循环冷风装置的高压变频器功率单元柜,包括柜体和机箱,机箱的顶部与柜体的底部固定连接,柜体的内部通过垫块固定连接有内箱,且内箱与柜体之间设置有空腔,本发明涉及变频器单元柜技术领域。该带有自循环冷风装置的高压变频器功率单元柜,通过在高压变频器上方设置可转动的挡风板,在工作时将挡风板放下,可将高压变频器上方的空间隔开,使第一竖板和第二竖板之间横向流动的气流必须通过高压变频器内部的空隙,而无法从高压变频器外部经过,可最大程度的将高压变频器内部空隙中的热量导出,进而保证散热效果,而挡风板也可转动至水平状态,并用永磁片吸附住,不影响高压变频器的安装拆卸。(The invention discloses a high-voltage frequency converter power unit cabinet with a self-circulation cold air device, which comprises a cabinet body and a cabinet, wherein the top of the cabinet is fixedly connected with the bottom of the cabinet body, the interior of the cabinet body is fixedly connected with an inner box through a cushion block, and a cavity is arranged between the inner box and the cabinet body. This high-voltage inverter power unit cabinet with self-loopa cold wind device, through set up rotatable deep bead in high-voltage inverter top, put down the deep bead at the during operation, can separate the space of high-voltage inverter top, make the air current of lateral flow between first riser and the second riser must pass through the inside space of high-voltage inverter, and can't follow the outside process of high-voltage inverter, but the heat derivation in the at utmost with the inside space of high-voltage inverter, and then guarantee the radiating effect, and the deep bead also can rotate to the horizontality, and adsorb with the permanent magnetism piece and live, do not influence the installation dismantlement of high-voltage inverter.)

1. The utility model provides a high-voltage inverter power unit cabinet with self-loopa cold wind device, includes the cabinet body (1) and quick-witted case (2), the bottom fixed connection of the top of the cabinet body (2) and the cabinet body (1), its characterized in that: the refrigerator comprises a cabinet body (1), wherein an inner box (3) is fixedly connected inside the cabinet body (1) through a cushion block, a cavity is arranged between the inner box (3) and the cabinet body (1), the left side and the right side of the inner part of the inner box (3) are respectively and fixedly connected with a first vertical plate (4) and a second vertical plate (5), a partition plate (6) is fixedly connected between the first vertical plate (4) and the second vertical plate (5), the top of the partition plate (6) is fixedly connected with a high-voltage frequency converter (7), air holes (29) are respectively formed in the first vertical plate (4) and the second vertical plate (5), an air exhaust pipe (8) penetrates through the bottom of the first vertical plate (4), a cold air pipe (9) penetrates through the bottom of the inner box (3) and the right side of the second vertical plate (5), the middle of the top of the inner wall of the inner box (3) and the middle of the bottom of the partition plate (, the top of the inner wall of the inner box (3) and the bottom of the partition plate (6) are fixedly connected with permanent magnet sheets (30) on the right side of the wind shield (10).

2. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter as claimed in claim 1, wherein: the air conditioner is characterized in that a first air box (11), a condensation box (12) and a water pump (13) are fixedly connected to the inside of the case (2) from left to right in sequence, and a second air box (14) is fixedly connected to the left side of the first air box (11).

3. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter as claimed in claim 2, wherein: the bottom of exhaust tube (8) runs through inner box (3), the cabinet body (1) and quick-witted case (2) in proper order and with the left side intercommunication at first bellows (11) top, the bottom of cold air duct (9) runs through the cabinet body (1) and quick-witted case (2) in proper order and with the right side intercommunication of condensing box (12), and the intercommunication has transition pipe (15) between the left side of the right side of first bellows (11) and condensing box (12).

4. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter as claimed in claim 2, wherein: the right side of the inner cavity of the first air box (11) is fixedly connected with a motor (16) through a fixing frame, the surface of an output shaft of the motor (16) is fixedly connected with a large fan blade (17), and the large fan blade (17) is located on the right side of the bottom end of the air exhaust pipe (8).

5. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter according to claim 4, is characterized in that: the left end of motor (16) output shaft passes through shaft coupling fixedly connected with pivot (18), the left end of pivot (18) runs through first bellows (11) and second bellows (14) in proper order and extends to the inside of second bellows (14), and rotates between the surface of pivot (18) and the lateral wall of first bellows (11) and second bellows (14) to be connected, the left end fixedly connected with little flabellum (19) of pivot (18).

6. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter as claimed in claim 5, wherein: the left side of second bellows (14) and the left wall intercommunication of quick-witted case (2), the top of second bellows (14) and the right side intercommunication that is located little flabellum (19) have gas blow pipe (20), the top of gas blow pipe (20) runs through machine case (2) and the cabinet body (1) in proper order and extends to between cabinet body (1) and inner box (3).

7. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter as claimed in claim 1, wherein: the middle of the top of the cabinet body (1) is communicated with a heat dissipation cylinder (21), the top of the heat dissipation cylinder (21) is fixedly connected with a rain cover (22) through a mandril, and an annular insect-proof net (23) is fixedly connected between the inner surface of the rain cover (22) and the outer surface of the heat dissipation cylinder (21).

8. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter as claimed in claim 2, wherein: the front side and the rear side of the bottom of the inner surface of the condensing box (12) are fixedly connected with shunting boxes (24), disc type condensing pipes (25) are communicated between the tops of the shunting boxes (24), and the disc type condensing pipes (25) are arranged in a plurality in equal distance.

9. The power unit cabinet with the self-circulation air cooling device for the high-voltage frequency converter according to claim 8, wherein: two the front end of branch flow box (24) communicates respectively from the front to the back has inlet tube (26) and wet return (27), the right-hand member of inlet tube (26) and the delivery port intercommunication of water pump (13), the delivery port intercommunication of water pump (13) has drinking-water pipe (28), the right-hand member of drinking-water pipe (28) and wet return (27) all runs through the right wall of quick-witted case (2) and extends to the right side of quick-witted case (2).

Technical Field

The invention relates to the technical field of frequency converter unit cabinets, in particular to a high-voltage frequency converter power unit cabinet with a self-circulation cold air device.

Background

The frequency converter control cabinet (frequency converter electric control cabinet/electric control cabinet) can be widely applied to various medium-voltage motor equipment such as pumps, fans, air compressors, rolling mills, injection molding machines, belt conveyors and the like in the industries of metallurgy, chemical industry, petroleum, water supply, mines, building materials, motors and the like. The frequency conversion cabinet adopts a closed cabinet type structure, the protection grades are generally IP20, IP21, IP30 and the like, a profile framework is adopted, the surface is coated with spray plastics, the frequency conversion cabinet is easy to assemble in a cabinet, a bus can be configured at the upper end, a frequency converter panel is led to the outer surface of the cabinet body to be directly operated, local and remote control or PC/PLC communication control can be arranged according to the requirement, and the frequency conversion cabinet has various visual display functions. The frequency converter is a special matching product of the frequency conversion cabinet, and the frequency conversion speed regulation function and the main technical parameters of the frequency converter depend on the specification and the model of the built-in frequency converter and the configuration condition of the periphery. The frequency converter cabinet has great difference according to different purposes and different functions, and is generally customized according to industrial and mining requirements. Currently, the more established types are: constant-pressure water supply frequency conversion cabinets (1 control 1, 1 control 2, 1 control 3 and the like), an escalator frequency conversion control cabinet, a central air-conditioning circulating water pump frequency conversion cabinet, a fan frequency conversion energy-saving cabinet and the like.

The inside multilayer converter unit that can set up of current converter switch board, for the installation of being convenient for, can set up the multilayer shelf, and the converter top can leave operating space, and simultaneously, the converter switch board during operation can give off a large amount of heats, consequently all can set up radiator fan, but the air current mostly can flow away in the operating space that vacates, and still contain most heat in the inside space of converter and be difficult to discharge, therefore the radiating efficiency is limited.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a high-voltage frequency converter power unit cabinet with a self-circulation cold air device, which solves the problems that most of air flow flows away in an empty operation space, most of heat is contained in a gap in a frequency converter and is difficult to discharge, and the heat dissipation efficiency is limited.

In order to achieve the purpose, the invention is realized by the following technical scheme: a high-voltage frequency converter power unit cabinet with a self-circulation cold air device comprises a cabinet body and a cabinet body, the top of the case is fixedly connected with the bottom of the case body, the interior of the case body is fixedly connected with an inner case through a cushion block, a cavity is arranged between the inner box and the cabinet body, the left side and the right side of the inner part of the inner box are respectively and fixedly connected with a first vertical plate and a second vertical plate, a clapboard is fixedly connected between the first vertical plate and the second vertical plate, and the top of the clapboard is fixedly connected with a high-voltage frequency converter, air holes are respectively arranged inside the first vertical plate and the second vertical plate, an exhaust pipe penetrates through the bottom of the first vertical plate, a cold air pipe penetrates through the bottom of the inner box and is positioned on the right side of the second vertical plate, the middle of the top of the inner box wall and the middle of the bottom of the partition plate are both rotatably connected with wind shields, and the top of the inner box wall and the bottom of the partition plate are both fixedly connected with permanent magnetic sheets on the right sides of the wind shields.

Preferably, the inside of the case is fixedly connected with a first air box, a condensation box and a water pump from left to right in sequence, and the left side of the first air box is fixedly connected with a second air box.

Preferably, the bottom of exhaust tube runs through inner box, the cabinet body and quick-witted case in proper order and with the left side intercommunication at first bellows top, the bottom of cold air duct runs through the cabinet body and quick-witted case in proper order and with the right side intercommunication of condensing box, and the intercommunication has the transition pipe between the right side of first bellows and the left side of condensing box.

Preferably, the right side of the inner cavity of the first air box is fixedly connected with a motor through a fixing frame, the surface of the output shaft of the motor is fixedly connected with a large fan blade, and the large fan blade is positioned on the right side of the bottom end of the exhaust pipe.

Preferably, the left end of motor output shaft passes through shaft coupling fixedly connected with pivot, the left end of pivot runs through first bellows and second bellows in proper order and extends to the inside of second bellows, and rotates between the surface of pivot and the lateral wall of first bellows and second bellows to be connected, the left end fixedly connected with little flabellum of pivot.

Preferably, the left side of second bellows and the left wall intercommunication of quick-witted case, the top of second bellows and the right side intercommunication that is located little flabellum have the gas blow pipe, the top of gas blow pipe runs through quick-witted case and the cabinet body in proper order and extends to between the cabinet body and the inner box.

Preferably, the middle of the top of the cabinet body is communicated with a heat dissipation cylinder, the top of the heat dissipation cylinder is fixedly connected with a rain cover through a mandril, and an annular insect net is fixedly connected between the inner surface of the rain cover and the outer surface of the heat dissipation cylinder.

Preferably, the front side and the rear side of the bottom of the inner surface of the condensing box are fixedly connected with the shunting boxes, the top of each shunting box is communicated with a plurality of disc-type condensing pipes, and the disc-type condensing pipes are arranged at equal intervals.

Preferably, two the front end of branch flow box communicates respectively from the front to the back has inlet tube and wet return, the right-hand member of inlet tube and the delivery port intercommunication of water pump, the delivery port intercommunication of water pump has the drinking-water pipe, the right-hand member of drinking-water pipe and wet return all runs through the right wall of quick-witted case and extends to the right side of quick-witted case.

Advantageous effects

The invention provides a high-voltage frequency converter power unit cabinet with a self-circulation cold air device. Compared with the prior art, the method has the following beneficial effects:

(1) the high-voltage inverter power unit cabinet with the self-circulation cold air device is characterized in that a first vertical plate and a second vertical plate are fixedly connected to the left side and the right side of the inner box respectively, a partition plate is fixedly connected between the first vertical plate and the second vertical plate, a high-voltage inverter is fixedly connected to the top of the partition plate, air holes are formed in the first vertical plate and the second vertical plate, an exhaust pipe penetrates through the bottom of the first vertical plate, a cold air pipe penetrates through the bottom of the inner box and the right side of the second vertical plate, air baffles are rotatably connected to the middle of the top of the inner wall of the inner box and the middle of the bottom of the partition plate, permanent magnetic sheets are fixedly connected to the top of the inner wall of the inner box and the bottom of the partition plate and the right side of the air baffles, a rotatable air baffle is arranged above the high-voltage inverter, the air baffle is put down during working, the space above the high-voltage inverter can be separated, and air transversely flowing between the first, and can't follow the outside process of high-voltage inverter, but the heat with in the inside space of high-voltage inverter of at utmost is derived, and then guarantees the radiating effect, and the deep bead also can rotate to the horizontality to live with permanent magnetism piece absorption, do not influence the installation of high-voltage inverter and dismantle convenient to use.

(2) The high-voltage inverter power unit cabinet with the self-circulation cold air device is characterized in that an inner box is fixedly connected inside a cabinet body through a cushion block, a cavity is arranged between the inner box and the cabinet body, the left end of a motor output shaft is fixedly connected with a rotating shaft through a coupler, the left end of the rotating shaft sequentially penetrates through a first air box and a second air box and extends into the second air box, the surface of the rotating shaft is rotatably connected with the side walls of the first air box and the second air box, a small fan blade is fixedly connected with the left end of the rotating shaft, the left side of the second air box is communicated with the left wall of a cabinet body, an air blowing pipe is communicated with the top of the second air box and is positioned at the right side of the small fan blade, the top end of the air blowing pipe sequentially penetrates through the cabinet body and extends to the space between the cabinet body and the inner box, a heat dissipation cylinder is communicated with the middle of the top of the cabinet body, the inner box is arranged in the, the heat that can give off the inner box is discharged with higher speed, improves the radiating effect of inner box, and for the direct heat dissipation of inner box, the radiating efficiency is higher, and little flabellum uses same motor to drive with big flabellum, has reduced equipment cost and maintenance cost, and controls more easily.

Drawings

FIG. 1 is a cross-sectional view of a structure of the present invention;

FIG. 2 is a cross-sectional view of a first windbox and a second windbox construction of the invention;

FIG. 3 is a schematic view of a close-up view taken at A in FIG. 1 according to the present invention;

fig. 4 is a perspective view of the structure of the diversion box and the disc-type condensation pipe according to the present invention.

In the figure: 1-cabinet body, 2-cabinet body, 3-inner box, 4-first vertical plate, 5-second vertical plate, 6-partition plate, 7-high voltage frequency converter, 8-exhaust pipe, 9-cold air pipe, 10-wind shield, 11-first wind box, 12-condensation box, 13-water pump, 14-second wind box, 15-transition pipe, 16-motor, 17-large fan blade, 18-rotating shaft, 19-small fan blade, 20-gas blow pipe, 21-heat dissipation cylinder, 22-rain cover, 23-annular insect-proof net, 24-shunt box, 25-disc type condensation pipe, 26-water inlet pipe, 27-water return pipe, 28-water suction pipe, 29-gas hole and 30-permanent magnet sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-voltage frequency converter power unit cabinet with a self-circulation cold air device comprises a cabinet body 1 and a cabinet 2, wherein a cabinet door is arranged on the front side of the cabinet body 1, a heat dissipation cylinder 21 is communicated with the middle of the top of the cabinet body 1, an inner box 3 is arranged in the cabinet body 1, a gap is reserved between the inner box and the inner box, meanwhile, small fan blades 19 rotating at high speed are used for extracting outside air and discharging the outside air into the gap, the heat dissipated by the inner box 3 can be discharged at high speed, the heat dissipation effect of the inner box 3 is improved, the heat dissipation efficiency is higher compared with the direct heat dissipation of the inner box 3, the small fan blades 19 and large fan blades 17 are driven by the same motor 16, the equipment cost and the maintenance cost are reduced, the control is easier, a rain cover 22 is fixedly connected to the top of the heat dissipation cylinder 21 through an ejector rod, an annular insect-proof net 23 is fixedly connected between the inner surface of the rain, A condensing box 12 and a water pump 13, wherein the left side of a first air box 11 is fixedly connected with a second air box 14, the left side of the second air box 14 is communicated with the left wall of a case 2, the top of the second air box 14 and the right side of a small fan blade 19 are communicated with an air blowing pipe 20, the top end of the air blowing pipe 20 sequentially penetrates through the case 2 and the case body 1 and extends to a position between the case body 1 and an inner case 3, the right side of the inner cavity of the first air box 11 is fixedly connected with a motor 16 through a fixing frame, the surface of the output shaft of the motor 16 is fixedly connected with a large fan blade 17, the large fan blade 17 is positioned at the right side of the bottom end of an air suction pipe 8, the left end of the output shaft of the motor 16 is fixedly connected with a rotating shaft 18 through a coupler, the left end of the rotating shaft 18 sequentially penetrates through the first air box 11 and the second air box 14 and extends to the inside of the second air box, the front side and the rear side of the bottom of the inner surface of the condenser box 12 are fixedly connected with a shunt box 24, the top parts of the two shunt boxes 24 are communicated with a disc type condenser pipe 25, a plurality of disc type condenser pipes 25 are arranged at equal intervals, the front ends of the two shunt boxes 24 are respectively communicated with a water inlet pipe 26 and a water return pipe 27 from front to back, the right end of the water inlet pipe 26 is communicated with a water outlet of a water pump 13, the water outlet of the water pump 13 is communicated with a water pumping pipe 28, the right ends of the water pumping pipe 28 and the water return pipe 27 penetrate through the right wall of the cabinet 2 and extend to the right side of the cabinet 2, the top part of the cabinet 2 is fixedly connected with the bottom part of the cabinet body 1, the inside of the cabinet body 1 is fixedly connected with an inner box 3 through a cushion block, a cavity is arranged between the inner box 3 and the cabinet body 1, the front side of the inner box 3 is connected with the inner wall of the cabinet body 1, and the top of the clapboard 6 is fixedly connected with a high-voltage frequency converter 7, the insides of the first vertical plate 4 and the second vertical plate 5 are provided with air holes 29, the first vertical plate 4 and the second vertical plate 5 are arranged to be matched with the air holes 29 for use, so that the air flow can be more uniform, the bottom of the first vertical plate 4 is penetrated with an air exhaust pipe 8, the bottom end of the air exhaust pipe 8 sequentially penetrates through the inner box 3, the cabinet body 1 and the cabinet 2 and is communicated with the left side of the top of the first air box 11, the bottom end of the cold air pipe 9 sequentially penetrates through the cabinet body 1 and the cabinet 2 and is communicated with the right side of the condenser 12, a transition pipe 15 is communicated between the right side of the first air box 11 and the left side of the condenser 12, the bottom of the inner box 3 and the right side of the second vertical plate 5 are penetrated with the cold air pipe 9, the middle of the top of the inner wall of the inner box 3 and the middle of the bottom of the clapboard 6 are both rotatably connected with a, through set up rotatable deep bead 10 above high-voltage inverter 7, put down deep bead 10 at the during operation, can separate the space above high-voltage inverter 7, make between first riser 4 and the second riser 5 air current of lateral flow must pass through the inside space of high-voltage inverter 7, and can't follow the 7 outside processes of high-voltage inverter, but the heat with in the 7 inside spaces of high-voltage inverter of at utmost is derived, and then guarantee the radiating effect, and deep bead 10 also can rotate to the horizontality, and adsorb with permanent magnet piece 30, do not influence the installation of high-voltage inverter 7 and dismantle, high durability and convenient use.

And those not described in detail in this specification are well within the skill of those in the art.

When the air cooling device is used, the water return pipe 27 and the water pumping pipe 28 are connected with a water source through pipelines, the water pump 13 and the motor 16 are started, the water pump 13 pumps cold water and discharges the cold water into the flow distribution box 24 at the rear side, then the cold water is distributed into the disc type condenser pipe 25 and enters the flow distribution box 24 at the front side to be converged, finally the cold water is discharged through the water return pipe 27, meanwhile, the motor 16 drives the large fan blades 17 on the shaft to rotate to generate a leftward air flow, so that the air pumping pipe 8 pumps air in the space at the left side of the first vertical plate 4, further, the air at the right side of the first vertical plate 4 is supplemented to the left side through the air hole 29 by using negative pressure, the air pumped by the air pumping pipe 8 enters the condensation box 12 through the transition pipe 15, the heat in the air is absorbed by the disc type condenser pipe 25 to be cooled, then the air enters the space at the right side of the second vertical plate 5, meanwhile, the airflow is blocked by the wind shield 10 and limited by the position of the air hole 29 when flowing, basically keeps horizontal and passes through the high-voltage frequency converter 7, the heat in the airflow is taken out, when the high-voltage frequency converter 7 needs to be maintained and disassembled, the wind shield 10 can be rotated anticlockwise to be horizontal, the permanent magnet sheet 30 is used for adsorbing the wind shield 10, and the normal operation can be realized at the moment.

Meanwhile, when the motor 16 works, the rotating shaft 18 can drive the small fan blades 19 to synchronously rotate, so that a right air flow is also formed, and then outside air is extracted and discharged into a cavity between the cabinet body 1 and the inner box 3 through the air blowing pipe 20, and then the air absorbs heat emitted by the inner box 3 and is discharged upwards through the heat dissipation cylinder 21.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.