Frequency converter air channel with rapid heat dissipation structure

Abstract

The utility model relates to the technical field of frequency converter air ducts, and discloses a frequency converter air duct with a rapid heat dissipation structure. An upper heat dissipation air duct and a lower heat dissipation air duct are respectively arranged in spaces formed between the upper and lower surfaces of a frequency converter unit and the upper and lower surfaces in an outer case; the upper heat dissipation air channel and the lower heat dissipation air channel are each formed by combining an upper heat conduction plate and a lower heat conduction plate with a plurality of longitudinally-distributed heat dissipation fins in the center, a heat dissipation air channel in the lower heat dissipation air channel is arranged to be linear, and a heat dissipation air channel in the upper heat dissipation air channel is arranged to be in the shape that the center warps upwards towards the front end and the rear end. And a dust removal assembly for scraping dust in the upper heat dissipation air duct and the lower heat dissipation air duct is mounted at the tail end outside the frequency converter unit. According to the frequency converter air duct with the rapid heat dissipation structure, through the unique heat dissipation air duct design, the effective arrangement of the ash removal assembly, the heat dissipation fan and the dust blocking net and the optimized heat transfer structure, the effects of efficient heat dissipation, cleanliness keeping, heat transfer efficiency improving, airflow optimizing and the like are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter air duct technical field, concretely is a kind of frequency converter air duct with quick heat dissipation structure. BACKGROUND

[0002] In the modern industrial automation field, frequency converter is widely used in various motor speed regulation systems as an important power control equipment. A large amount of heat will be generated during the working process of the frequency converter. If these heat cannot be dissipated in time and effectively, the internal temperature of the frequency converter will rise, affecting its normal working performance, and even possibly shortening the service life of the frequency converter and increasing the failure rate of the equipment.

[0003] At present, in the design of existing frequency converter air duct, part only adopts the air duct structure of linear air guide at bottom. This design has the following shortcomings:

[0004] Limited heat dissipation effect: only relying on the linear air guide air duct at the bottom, it cannot fully cover each part of the frequency converter, resulting in uneven heat dissipation, especially for the heat dissipation effect of the upper part of the frequency converter, which is prone to cause the problem of local overheating.

[0005] Low heat transfer efficiency: the contact area of the heat conduction plate of the linear air guide air duct at the bottom with the frequency converter is limited, which cannot fully and directly absorb the heat generated by the frequency converter, so that the heat transfer efficiency is not high, affecting the overall heat dissipation effect.

[0006] Lack of dust removal function: the existing air duct structure often does not have effective dust removal device, and with the passage of time, a large amount of dust will accumulate in the air duct, which will block the air duct and affect the air circulation, further reducing the heat dissipation effect. INVENTION CONTENTS

[0007] (I) Technical problem solved

[0008] In view of the shortcomings of the prior art, the utility model provides a frequency converter air duct with quick heat dissipation structure to solve the above problems.

[0009] (II) Technical scheme

[0010] To achieve the above object, the utility model provides the following technical scheme: A frequency converter air duct with quick heat radiation structure, including outer case and frequency converter unit, the frequency converter unit is installed in the center position in the outer case, the space formed between the upper and lower surfaces of the frequency converter unit and the upper and lower surfaces in the outer case is respectively installed with upper heat dissipation air duct and lower heat dissipation air duct, the upper heat dissipation air duct and lower heat dissipation air duct all adopt two heat conduction plates of upper and lower cooperation center several longitudinal distribution heat dissipation fins combination constitutes, the inside heat dissipation air duct of lower heat dissipation air duct is arranged as linear type, the inside heat dissipation air duct of upper heat dissipation air duct is arranged center and is tilted to the shape of front and back end, the tail end position of the outside of frequency converter unit is installed with the dust removal assembly for scraping the dust inside upper heat dissipation air duct and lower heat dissipation air duct.

[0011] As the preferred technical scheme of the utility model, the heat conduction plate of the bottom of the upper heat dissipation air duct is distributed in the inside of the frequency converter unit.

[0012] As the preferred technical scheme of the utility model, the dust removal assembly specifically includes the following structure:

[0013] Three double-shaft air cylinders are installed at the tail end position of the outside of the frequency converter unit.

[0014] The crossbeam is docked at the upper and lower telescopic end position of the three double-shaft air cylinders.

[0015] The first dust removal scraper and the second dust removal scraper are correspondingly installed on the upper and lower crossbeams, the first dust removal scraper is correspondingly clamped between the heat dissipation fins in the inside of the upper heat dissipation air duct, and the second dust removal scraper is correspondingly clamped between the heat dissipation fins in the inside of the lower heat dissipation air duct.

[0016] As the preferred technical scheme of the utility model, the first dust removal scraper is set to be the same shape as the airflow guide direction in the inside of the upper heat dissipation air duct.

[0017] As the preferred technical scheme of the utility model, the second dust removal scraper is set to be the same shape as the airflow guide direction in the inside of the lower heat dissipation air duct.

[0018] As the preferred technical scheme of the utility model, the front end of the space between the upper and lower surfaces of the frequency converter unit and the upper and lower surfaces in the inside of the outer case is installed with the heat dissipation fan.

[0019] As the preferred technical scheme of the utility model, the rear end of the space between the upper and lower surfaces of the frequency converter unit and the upper and lower surfaces in the inside of the outer case is installed with the dustproof net.

[0020] Compared with the prior art, the utility model provides a frequency converter air duct with quick heat radiation structure, which has the following beneficial effects:

[0021] Efficient heat dissipation:

[0022] The design of the upper heat dissipation air duct and the lower heat dissipation air duct can effectively dissipate the heat generated by the frequency converter unit. The linear design of the lower heat dissipation air duct can efficiently guide the straight flow of hot air, achieving rapid heat dissipation. The upper heat dissipation air duct is shaped like a center that tilts forward and backward, increasing the area of penetration into the interior of the frequency converter unit, further improving the heat dissipation effect.

[0023] The heat dissipation fan installed at the front end of the outer case can actively suck in external cold air, accelerating the air flow inside the case and enhancing the heat dissipation effect.

[0024] Maintain cleanliness:

[0025] The setting of the dust cleaning assembly can effectively clean the dust inside the upper and lower heat dissipation air ducts. The double-shaft air cylinder drives the cross beam and the dust cleaning wiper to move, so that the first dust cleaning wiper is accurately clamped between the heat dissipation fins of the upper heat dissipation air duct, and the second dust cleaning wiper is correspondingly clamped between the heat dissipation fins of the lower heat dissipation air duct, achieving the cleaning of the dust inside the heat dissipation air duct, keeping the air duct unobstructed, and helping to maintain good heat dissipation performance.

[0026] The dust blocking net installed at the rear end can effectively block the entry of external dust, maintain the cleanliness of the interior of the case, and reduce the impact of dust on the frequency converter unit and the heat dissipation air duct.

[0027] Improve heat transfer efficiency:

[0028] The heat conduction plate at the bottom of the upper heat dissipation air duct is specifically distributed inside the frequency converter unit, which can more directly absorb the heat generated by the frequency converter unit, improve the heat transfer efficiency, and make the heat be transferred to the heat dissipation air duct for dissipation more quickly.

[0029] Optimize air flow:

[0030] The shape of the first dust cleaning wiper is consistent with the air flow direction inside the upper heat dissipation air duct, and the shape of the second dust cleaning wiper is consistent with the air flow direction inside the lower heat dissipation air duct. Such design can not only ensure the dust cleaning effect, but also will not greatly hinder the air flow, so that the air flow can smoothly pass through the heat dissipation air duct, further improving the heat dissipation efficiency.

[0031] In summary, this frequency converter air duct with rapid heat dissipation structure, through the unique design of the heat dissipation air duct, the effective dust cleaning assembly, the heat dissipation fan and the dust blocking net, as well as the optimized heat transfer structure, realizes the beneficial effects of efficient heat dissipation, cleanliness maintenance, heat transfer efficiency improvement and air flow optimization. These beneficial effects help to improve the working stability and reliability of the frequency converter, prolong its service life, reduce maintenance cost, and also provide strong protection for the normal operation of related equipment. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1It is the structure schematic view under the side front view angle of the utility model;

[0033] Figure 2 It is the structure schematic view under the side rear view angle of the utility model;

[0034] Figure 3 It is the internal structure schematic view of the utility model;

[0035] Figure 4 It is the structure schematic view of the upper heat dissipation air duct, lower heat dissipation air duct and ash cleaning assembly distribution structure of the utility model;

[0036] Figure 5 It is the structure schematic view of the ash cleaning assembly of the utility model;

[0037] Figure 6 It is the structure schematic view of the upper heat dissipation air duct of the utility model;

[0038] Figure 7 It is the structure schematic view of the lower heat dissipation air duct of the utility model.

[0039] Wherein: 1, outer machine box;2, frequency converter unit;3, upper heat dissipation air duct;4, lower heat dissipation air duct;5, ash cleaning assembly;6, heat dissipation fan;7, dust screen;

[0040] 51, double shaft air cylinder;52, crossbeam;53, first ash cleaning blade;54, second ash cleaning blade. DETAILED DESCRIPTION

[0041] The utility model will be further explained in detail in combination with the drawings and embodiments, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment.In the case of no conflict, the embodiment in the application and the features in the embodiment can be combined with each other.Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the protection scope of the utility model.

[0042] It should be noted that if the utility model embodiment has involved directionality indication (such as up, down, left, right, front, rear……), then the directionality indication is only used to explain the relative position relationship, movement condition etc. between the components in a certain specific posture (such as shown in the drawings), if the specific posture changes, then the directionality indication also changes accordingly.

[0043] In addition, "multiple" refers to two or more.In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on that the ordinary skill in the art can be realized, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not in the protection scope required by the utility model.

[0044] Please refer to Figures 1-7 The utility model provides a frequency converter air duct with quick heat radiation structure, contains outer case 1 and frequency converter unit 2. Frequency converter unit 2 is firmly installed in the central position in outer case 1, and the space between the upper and lower surfaces in outer case 1 and the upper and lower surfaces of frequency converter unit 2 is respectively provided with upper heat dissipation air duct 3 and lower heat dissipation air duct 4. Upper heat dissipation air duct 3 and lower heat dissipation air duct 4 are all closely combined by two heat conduction plates and a plurality of longitudinal distribution heat dissipation fins in the center, wherein the heat dissipation air duct in lower heat dissipation air duct 4 is straight linear type, can guide hot air flow to flow linearly efficiently, realizes quick heat radiation, and the heat dissipation air duct in upper heat dissipation air duct 3 is designed uniquely, is shaped to the shape of the upper end of the center to the rear, this shape can increase the area of the exploration into the inside of frequency converter unit 2, and further improves the heat dissipation effect.

[0045] The dust cleaning assembly 5 is installed at the tail end of the frequency converter unit 2, which mainly includes three double-shaft air cylinders 51 installed at the tail end of the frequency converter unit 2. The double-shaft air cylinders 51 have a stable telescopic function, and the upper and lower telescopic ends are accurately connected to the cross beam 52. A plurality of first dust cleaning blades 53 and second dust cleaning blades 54 are installed on the cross beam 52. The first dust cleaning blades 53 can be accurately connected between the heat dissipation fins of the upper heat dissipation air duct 3, and the second dust cleaning blades 54 are connected between the heat dissipation fins of the lower heat dissipation air duct 4. The telescopic movement of the double-shaft air cylinders 51 drives the cross beam 52 and the dust cleaning blades to move, thereby effectively cleaning the dust in the heat dissipation air duct. The shape of the first dust cleaning blade 53 is specially designed to be consistent with the airflow direction inside the upper heat dissipation air duct 3, which can ensure the dust cleaning effect and will not hinder the airflow. The shape of the second dust cleaning blade 54 is also consistent with the airflow direction inside the lower heat dissipation air duct 4 to achieve the best dust cleaning and airflow matching effect.

[0046] A plurality of heat dissipation fans are installed at the front end of the outer case 1. These heat dissipation fans can actively suck in external cold air and accelerate the air flow in the case, further enhancing the heat dissipation effect. A dust prevention net 7 is installed at the rear end, which can effectively prevent external dust from entering and keep the inside of the case clean. At the same time, the heat conduction plates at the bottom of the upper heat dissipation air duct are distributed inside the frequency converter unit 2, which can more directly absorb the heat generated by the frequency converter unit and improve the heat transfer efficiency.

[0047] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

[0048] 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.

[0049] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The 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 can be understood by a person skilled in the art.

Claims

1. A frequency converter air duct with a quick heat dissipation structure, comprising an outer case (1) and a frequency converter unit (2), characterized in that: The frequency converter unit (2) is installed at the center position in the outer case (1), and the space formed between the upper and lower surfaces of the frequency converter unit (2) and the upper and lower surfaces in the outer case (1) is respectively provided with an upper heat dissipation air duct (3) and a lower heat dissipation air duct (4), the upper heat dissipation air duct (3) and the lower heat dissipation air duct (4) are both composed of two heat conduction plates and a plurality of longitudinally distributed heat dissipation fins, the heat dissipation air duct in the lower heat dissipation air duct (4) is in a straight line type, the heat dissipation air duct in the upper heat dissipation air duct (3) is in a shape of being upwardly curved from the center to the front and rear ends, and a dust cleaning assembly (5) is installed at the tail end position of the frequency converter unit (2) to scrape the dust in the upper heat dissipation air duct (3) and the lower heat dissipation air duct (4).

2. The frequency converter air duct with a quick heat dissipation structure according to claim 1, characterized in that: The heat conduction plates at the bottom of the upper heat dissipation air duct are arranged in the frequency converter unit (2).

3. The frequency converter air duct with a quick heat dissipation structure according to claim 1, characterized in that: The dust cleaning assembly (5) specifically comprises the following structure: Three double-shaft air cylinders (51) are installed at the tail end position of the frequency converter unit (2); A cross beam (52) is connected to the upper and lower extension end positions of the three double-shaft air cylinders (51); A plurality of first dust cleaning blades (53) and second dust cleaning blades (54) are installed on the upper and lower cross beams (52), the first dust cleaning blades (53) are correspondingly clamped between a plurality of heat dissipation fins in the upper heat dissipation air duct (3), and the second dust cleaning blades (54) are correspondingly clamped between a plurality of heat dissipation fins in the lower heat dissipation air duct (4).

4. The frequency converter air duct with a quick heat dissipation structure according to claim 3, characterized in that: The first dust cleaning blades (53) are arranged in a shape consistent with the airflow direction in the upper heat dissipation air duct (3).

5. The frequency converter air duct with a quick heat dissipation structure according to claim 3, characterized in that: The second dust cleaning blades (54) are arranged in a shape consistent with the airflow direction in the lower heat dissipation air duct (4).

6. The frequency converter air duct with a quick heat radiation structure according to claim 1, characterized in that: A plurality of heat dissipation fans are installed at the front end of the space between the upper and lower surfaces of the frequency converter unit (2) and the upper and lower surfaces in the outer case (1).

7. The frequency converter air duct with a quick heat radiation structure according to claim 1, characterized in that: A dust blocking net (7) is installed at the rear end of the space between the upper and lower surfaces of the frequency converter unit (2) and the upper and lower surfaces in the outer case (1).

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