Outdoor type frequency converter structure with independent air duct
Technical Field
The utility model relates to the technical field of frequency converters, in particular to an outdoor frequency converter structure with an independent air duct.
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, and is widely applied in various fields.
In order to meet the protection level, the existing outdoor frequency converter generally adopts a more closed structural design, a heat dissipation hole is reserved on the side face of the outdoor frequency converter generally, a fan is arranged on the other side of the frequency converter, heat dissipation is carried out through blowing of the fan, the fan can only take away hot air at the air-receiving position in the cabinet body from the side face, the rest of the hot air is retained in the cabinet body and cannot be well discharged, and the heat dissipation effect is poor.
Disclosure of utility model
Therefore, the utility model aims to provide an outdoor frequency converter structure with an independent air duct, so as to solve the technical problems that when a frequency converter in the prior art dissipates heat through a fan on the side surface, the fan can only take away hot air at the air-receiving position in a cabinet body from the side surface, and the rest of hot air stays in the cabinet body and cannot be well discharged, and the heat dissipation effect is poor.
The utility model is realized by the following technical scheme:
The outdoor frequency converter structure with the independent air duct comprises a cabinet body with an accommodating cavity, wherein an air duct partition plate is vertically arranged in the accommodating cavity in a blocking mode, an air inlet and an air outlet which are communicated with the accommodating cavity are respectively formed in the lower portion of the side wall of the cabinet body and the bottom of the cabinet body, and the air inlet and the air outlet are respectively arranged on two sides of the air duct partition plate;
The air duct partition plate is characterized in that a through hole is formed in the side face of the top of the air duct partition plate, the through hole is communicated with the air inlet and the air outlet, a tortuous and extending air duct is formed in two sides of the air duct partition plate, and a fan is installed in the air duct.
Further, a mounting plate for vertically isolating the space between the air duct partition plate and the front side wall of the cabinet body is further arranged in the accommodating cavity, the air outlet is positioned between the air duct partition plate and the mounting plate, and a radiator is fixedly arranged between the mounting plate and the air duct partition plate.
Further, the air duct partition plate comprises a first plate body, a second plate body and a third plate body which are sequentially connected end to end;
The first plate body is in a ladder shape, and the fan is arranged above the corner of the first plate body and between the first plate body and the mounting plate.
Further, the second board body comprises a first vertical portion connected with the first board body and a transverse portion connected with the third board body, wherein the transverse portion is used for mounting an electrical element and is fixedly connected with the first vertical portion or integrally formed.
Further, the third plate body comprises a bending part fixedly connected with the transverse part, the bending part faces the air inlet, and a second vertical part fixedly connected with the bottom wall of the cabinet body, and the second vertical part and the bending part are integrally formed.
Further, the mounting frame for mounting the electrical element is fixedly connected to the bottom wall of the cabinet body, and the mounting frame is located above the air outlet.
Further, support plates are respectively arranged on the opposite surfaces of the rear side wall of the cabinet body and the air duct partition plate, the installation height of the support plates is larger than the position height of the air inlet, and two ends of the support plates are respectively attached to the left side wall and the right side wall of the cabinet body;
Along the depth direction of the support plates, two support plates are respectively and vertically fixedly connected with side plates, and two ends of the two side plates are respectively and jointly connected with end frames;
along the depth direction of curb plate, install a plurality of intermediate plates between two the end frame, a plurality of on the intermediate plate wear to be equipped with a plurality of heat dissipation aluminum pipes jointly.
Further, a shutter is installed in the air inlet.
Further, a dust screen is arranged in the air outlet.
Further, the bottom of the cabinet body is provided with a base, and the base is a rectangular frame body structure formed by sequentially connecting and splicing a plurality of U-shaped steel bodies end to end.
The utility model has the beneficial effects that:
When the outdoor frequency converter structure with the independent air duct is used, hot air positioned on one side of the air duct partition board close to the air inlet is sucked to the air inlet of the fan through the fan, and the air is discharged downwards out of the cabinet body from the air outlet after being accelerated by high-speed rotation of the impeller of the fan, so that air cooling and heat dissipation of electric elements arranged in the cabinet body are realized;
Secondly, when the fan is used for sucking and discharging the hot air in the cabinet body downwards, the external air is sucked from the air inlet and supplemented into the cabinet body, then flows along the air duct under the action of the fan, and finally is discharged from the air outlet, so that the air flows and circulates from the air inlet to the air outlet.
Drawings
Fig. 1 is a schematic structural diagram of an outdoor frequency converter structure with independent air channels.
Fig. 2 is a schematic diagram showing connection between a mounting frame and a cabinet body of the outdoor frequency converter structure with independent air channels.
Fig. 3 is a schematic diagram showing connection between an air duct partition plate and a cabinet body of an outdoor frequency converter structure with independent air ducts.
Fig. 4 is a schematic structural view of an air duct partition plate of an outdoor frequency converter structure with independent air ducts.
In the figure, the cabinet body is 1-, the accommodating cavity is 2-, the air inlet is 3-, the air outlet is 4-and the air channel is 5-;
51-first plate body, 52-second plate body, 521-first vertical part, 522-transverse part, 53-third plate body, 531-bending part and 532-second vertical part;
6-through holes, 7-fans, 8-mounting plates, 9-radiators, 10-mounting frames, 11-support plates, 12-side plates, 13-end frames, 14-middle plates, 15-heat dissipation aluminum pipes, 16-shutters, 17-dustproof nets, 18-bases and 19-air ducts.
Detailed Description
Exemplary embodiments that embody features and advantages of the present utility model will be set forth in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.
In the description of the present application, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the structure referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.
Referring to fig. 1 to 4, the utility model provides a technical scheme that an outdoor frequency converter structure with independent air channels comprises a cabinet body 1 with a containing cavity 2, wherein the lower part of the rear side wall of the cabinet body 1 and the bottom of the cabinet body 1 are respectively provided with an air inlet 3 and an air outlet 4 communicated with the containing cavity 2, the air inlet 3 and the air outlet 4 are respectively provided with a shutter 16 and a dustproof net 17, and the shutter 16 is partially opened to prevent larger external impurities such as leaves or paper sheets from entering the cabinet body 1 while guaranteeing the heat dissipation and ventilation of the interior of the cabinet body 1, so that the cabinet body 1 has a certain dustproof capability, the specific structure and the working principle of the shutter 16 are the prior art, and the dustproof net 17 has similar functions with the shutter 16 and can play a role in dustproof heat dissipation;
The bottom of the cabinet body 1 is provided with a base 18, the base 18 is of a rectangular frame structure formed by sequentially splicing a plurality of U-shaped steel bodies in an end-to-end mode, and the cabinet body 1 is lifted up through the base 18, so that the installation of the cabinet body 1 and the ventilation and heat dissipation of the cabinet body 1 are facilitated;
An air channel baffle 5 is vertically arranged in the accommodating cavity 2 in a blocking manner, the air inlet 3 and the air outlet 4 are respectively arranged at two sides of the air channel baffle 5, a through hole 6 is formed in the side face of the top of the air channel baffle 5, the through hole 6 is communicated with the air inlet 3 and the air outlet 4 so as to form a zigzag extending air channel 19 at two sides of the air channel baffle 5, a fan 7 is arranged in the air channel 19, when the fan 7 works, hot air positioned at one side of the air channel baffle 5 close to the air inlet 3 is sucked to an air inlet of the fan 7, and after the air passes through an impeller of the fan 7 and is accelerated by high-speed rotation, the air is downwards discharged out of the air outlet 4 from the cabinet 1, so that air cooling and heat dissipation of electric appliance components arranged in the cabinet 1 are realized;
Secondly, when the fan 7 sucks and discharges the hot air in the cabinet body 1 downwards, the external air is sucked from the air inlet 3 to be supplemented into the cabinet body 1, then flows along the air duct 19 under the action of the fan 7, and finally is discharged from the air outlet 4, so that the air flows and circulates from the air inlet 3 to the air outlet 4, and as the electric components are arranged in the air duct 19, most of heat generated by the operation of the electric components can be taken away when the air flows and circulates in the air duct 19, so that a better heat dissipation effect is achieved, the frequency converter can stably operate, and the service life of all parts of the equipment is prolonged;
The fan 7 may be a centrifugal fan or other fans capable of achieving the same effect in the prior art.
Referring to fig. 2 and 3, the accommodating chamber 2 is further provided with a mounting plate 8 for vertically isolating the space between the air duct partition 5 and the front side wall of the cabinet body 1, the air outlet 4 is located between the air duct partition 5 and the mounting plate 8, the space between the air duct partition 5 and the front side wall of the cabinet body 1 is isolated by the mounting plate 8, and electrical components can be classified and installed, and electrical components with more heat generated during operation are installed in the air duct 19, so that most of the heat in the cabinet body 1 is carried out to realize heat dissipation when the air flows in the air duct 19, and other electrical components with lower heat dissipation are installed on the mounting plate 8 for convenience in maintenance, and maintenance work can be performed when the panel on the front side of the cabinet body 1 is opened;
The heat radiator 9 is fixedly arranged between the mounting plate 8 and the air duct partition plate 5, the mounting plate 8 is made of a material with good heat conducting performance, the heat radiator 9 is arranged between the mounting plate 8 and the air duct partition plate 5, heat conduction can be carried out on heat emitted by an electrical element arranged on the mounting plate 8, normal operation of the electrical element arranged on the mounting plate 8 is guaranteed, the specific structure and the working principle of the heat radiator 9 are the prior art, excessive redundancy is not carried out here, meanwhile, the heat radiator 9 is positioned in the air duct 19, and when air is in the action of the fan 7, the heat on the heat radiator 9 and the mounting plate 8 can be taken away when flowing and circulating on two sides of the air duct partition plate 5, heat aggregation is avoided, and the electric heat radiating effect is further improved.
Referring to fig. 4, the air duct partition 5 includes a first plate 51, a second plate 52 and a third plate 53 connected end to end in sequence;
The first plate 51 is in a stepped shape, and by designing the first plate 51 to be in a stepped shape, an installation space is provided for the fan 7, the fan 7 is installed above the corner of the first plate 51 and between the first plate 51 and the installation plate 8, so that an air inlet of the fan 7 is aligned with the through hole 6, hot air on one side of the air duct partition 5 close to the air inlet 3 is pumped, and air accelerated by the fan 7 can directly flow downwards along the air duct partition 5 to be discharged out of the cabinet 1;
The second plate 52 includes a first vertical portion 521 connected to the first plate 51, and a transverse portion 522 connected to the third plate 53, where the transverse portion 522 is used for mounting an electrical component, so that air entering the cabinet 1 through the air inlet 3 may be directly blown to the electrical component to dissipate heat, and the transverse portion 522 is fixedly connected to or integrally formed with the first vertical portion 521;
The third plate 53 includes a bent portion 531 fixedly connected to the transverse portion 522, the bent portion 531 faces the air inlet 3, air entering the cabinet 1 may be guided by the bent portion 531, so that the air flows to an electrical component of the transverse portion 522 to dissipate heat, and a second vertical portion 532 fixedly connected to a bottom wall of the cabinet 1, where the second vertical portion 532 and the bent portion 531 are integrally formed.
Referring to fig. 2, a mounting frame 10 for mounting electrical components is fixedly connected to the bottom wall of the cabinet body 1, the mounting frame 10 is located above the air outlet 4, and by mounting electrical components such as a reactor on the mounting frame 10 and in the air duct 19, heat generated by the reactor can be taken away when air flows and discharged downwards from the air outlet 4;
Secondly, the structure similar to a Chinese character 'zhi' formed by connecting the second plate 52 and the third plate 53 can provide an installation space for installing the reactor, and make the electrical components installed inside the cabinet 1 more reasonably compact, so as to optimize the space utilization rate of the accommodating cavity 2.
Referring to fig. 2 and 3, support plates 11 are respectively mounted on opposite surfaces of the rear side wall of the cabinet body 1 and the air duct partition plate 5, the mounting height of the support plates 11 is greater than the position height of the air inlet 3, and two ends of the support plates 11 are respectively attached to the left and right side walls of the cabinet body 1;
Along the depth direction of the support plates 11, two support plates 11 are respectively and vertically fixedly connected with side plates 12, two ends of each side plate 12 are respectively and jointly connected with an end frame 13, the two end frames 13 and the two side plates 12 are matched and spliced to form a frame structure, the frame structure is positioned in the air duct 19 and above the air inlet 3, and the support plates 11 can be used for mounting the frame structure and simultaneously partially blocking the bottom of the frame structure, so that air passes through the frame structure and circulates after flowing in the air duct 19;
Along the depth direction of curb plate 12, install two between end frame 13a plurality of intermediate lamella 14, the polylith wear to be equipped with jointly on the intermediate lamella 14 many heat dissipation aluminum pipe 15, because electrical components more install in wind channel baffle 5 is close to one side of air intake 3, thereby through heat dissipation aluminum pipe 15 can be right the heat absorption of cabinet body 1 top gathering and transfer to each position of pipe shaft realize the heat dissipation, and in the work of fan 7 drives the gas flow cycle's in-process, can effectively take away heat on the heat dissipation aluminum pipe 15 to effective control equipment's temperature guarantees equipment's safety and performance.
Finally, the foregoing embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, as any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.