Ultra-silence high-heat-dissipation metal overhead ventilator

Abstract

The utility model belongs to the technical field of fans, and particularly relates to an ultra-silence high-heat-dissipation metal overhead ventilator which aims at solving the problems that noise is large and heat dissipation efficiency is low in the background technology, and the ultra-silence high-heat-dissipation metal overhead ventilator comprises an air bellow, and air guide assemblies are arranged on the peripheral sides of the outer wall of the air bellow. The air guide assembly comprises dustproof nets installed on the inner walls of the three sides of the air bellow and air guide covers welded to the outer walls of the three sides of the air bellow, a silencing assembly is arranged on the outer wall of the top of the air bellow, and the silencing assembly comprises an exhaust outlet welded to the inner wall of the top of the air bellow and silencing cotton filled in the inner wall of the exhaust outlet. The high-density silencing cotton is filled in the air outlet, and medium-high frequency noise is effectively absorbed through the porous sound absorption structure; the streamline design of the air outlet and the wind scooper reduces airflow turbulence and further reduces wind noise, and the brushless motor has no mechanical reversing noise and is matched with the precise bearing frame to reduce vibration transmission, so that the motor is suitable for places with strict mute requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field especially relates to super -silent high heat dissipation metal top -mounted ventilator. BACKGROUND

[0002] Traditional top -mounted ventilator is widely used in industry, building and special environment (such as data center, laboratory), but it generally has the following problems:

[0003] Noise problem: ordinary ac motor or carbon brush motor vibration is big when running, and high frequency noise is generated by the friction of blade and airflow, which influences the use environment, and although simple sound insulation material is used in part of the equipment, the airflow path is not optimized, and the noise reduction effect is limited.

[0004] Low heat dissipation efficiency: the air guide structure of traditional ventilator is single, airflow distribution is uneven, which leads to low heat dissipation efficiency, and the heat dissipation performance of metal material is not fully utilized, and the equipment is prone to overheating after long time running, which influences the service life. INVENTION CONTENTS

[0005] In view of the defects of the prior art, the utility model provides super -silent high heat dissipation metal top -mounted ventilator, overcomes the defects of the prior art, and effectively solves the problems of large noise and low heat dissipation efficiency.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] Super -silent high heat dissipation metal top -mounted ventilator, including wind box, the circumferential side of wind box outer wall is provided with air guide component, and the air guide component includes dust screen installed on the inner wall of three sides of wind box, air guide cover welded on the outer wall of three sides of wind box, the outer wall of the top of wind box is provided with silencing component, and the silencing component includes exhaust port welded on the inner wall of the top of wind box, and the exhaust port is filled with silencing cotton in the inner wall, the inside of wind box is provided with fan drive mechanism.

[0008] Preferably, the fan drive mechanism includes brushless motor, motor shaft, axial blade, bearing bracket and motor mounting seat, wherein the brushless motor is arranged in the inside of the wind box, the motor shaft is fixedly connected to the output shaft of the brushless motor through the shaft coupling, the axial blade is installed on the top outer wall of the motor shaft, the bearing bracket is rotatably connected to the outer wall of the motor shaft through the bearing, and the end of the bearing bracket is welded to the inner wall of the exhaust port, and the motor mounting seat is installed at the bottom of the brushless motor.

[0009] Preferably, the bottom outer wall of the wind box is welded with a bottom plate, and a filter screen is arranged between the bottom plate and the wind box.

[0010] Preferably, the wind box includes a bottom frame and a top cover, wherein the bottom frame and the top cover are fixedly connected by screws, and the exhaust port is welded to the inner wall of the top cover.

[0011] Preferably, the top outer wall of the exhaust port is fixedly connected with an exhaust pipe through a flange.

[0012] Preferably, the bottom outer wall of the wind box is welded with an array of support legs.

[0013] Preferably, the side outer wall of the bottom frame is provided with an access hole, and a maintenance door is hinged to the inner wall of the access hole.

[0014] The utility model discloses the beneficial effects are:

[0015] 1. The super-silent high-heat-dissipation metal top-mounted ventilator fills high-density sound-absorbing cotton in the exhaust port, effectively absorbs medium and high frequency noise through the porous sound-absorbing structure, reduces airflow turbulence through the streamlined design of the exhaust port and the air guide cover, further reduces wind noise, and the brushless motor has no mechanical commutation noise, cooperates with the precision bearing frame, reduces vibration transmission, and is suitable for places with strict silence requirements.

[0016] 2. The super-silent high-heat-dissipation metal top-mounted ventilator adopts aluminum alloy material for the three-side air guide cover, the surface is treated by anodic oxidation, and the heat conductivity is enhanced; the air guide cover is designed as a gradually expanding flow channel to accelerate airflow diffusion and uniform distribution, and improve the heat dissipation efficiency. The metal wind box as a whole adopts galvanized steel sheet, the top exhaust port is directly welded with the metal top cover, and a high-efficiency heat conduction path is formed to quickly lead out the heat generated during motor operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses the whole structure schematic diagram of the super-silent high-heat-dissipation metal top-mounted ventilator Figure 1 .

[0018] Figure 2 The utility model discloses the whole structure schematic diagram of the super-silent high-heat-dissipation metal top-mounted ventilator Figure 2 .

[0019] Figure 3 The utility model discloses the whole structure schematic diagram of the super-silent high-heat-dissipation metal top-mounted ventilator

[0020] Figure 4 The utility model discloses the wind box internal structure schematic diagram of the super-silent high-heat-dissipation metal top-mounted ventilator Figure 1 .

[0021] Figure 2 The utility model discloses the wind box internal structure schematic diagram of the super-silent high-heat-dissipation metal top-mounted ventilator Figures 1-3 .

[0022] In the figure: 1, wind box; 2, air guide assembly; 21, dust screen; 22, air guide cover; 3, sound attenuation assembly; 31, air outlet; 32, sound attenuation cotton; 4, fan driving mechanism; 41, brushless motor; 42, motor shaft; 43, axial blade; 44, bearing bracket; 45, motor mounting seat; 5, bottom plate; 6, filter screen; 7, access hole; 8, access door; 9, air outlet pipe; 10, support leg; 11, bottom frame; 12, top cover. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment one, refer to Figures 4-5 , super-silent high-heat-dissipation metal top-mounted ventilator, including wind box 1, the circumferential side of wind box 1 outer wall is provided with air guide assembly 2, and air guide assembly 2 includes dust screen 21 installed on the inner wall of three sides of wind box 1, air guide cover 22 welded on the outer wall of three sides of wind box 1, the top outer wall of wind box 1 is provided with sound attenuation assembly 3, and sound attenuation assembly 3 includes air outlet 31 welded on the top inner wall of wind box 1, sound attenuation cotton 32 filled in the inner wall of air outlet 31, the inside of wind box 1 is provided with fan driving mechanism 4.

[0025] In this embodiment, high-density sound attenuation cotton 32 is filled in air outlet 31, and the porous sound absorption structure effectively absorbs medium-high frequency noise; the streamline design of air outlet 31 and air guide cover 22 reduces airflow turbulence, further reduces wind noise, and brushless motor 41 has no mechanical commutation noise, cooperates with precise bearing bracket 44, reduces vibration transmission, and is suitable for places with strict requirements on silence.

[0026] Embodiment two, refer to Figure 2 , super-silent high-heat-dissipation metal top-mounted ventilator, fan driving mechanism 4 includes brushless motor 41, motor shaft 42, axial blade 43, bearing bracket 44 and motor mounting seat 45, wherein brushless motor 41 is arranged in the inside of wind box 1, motor shaft 42 is fixedly connected on the output shaft of brushless motor 41 through a shaft coupling, axial blade 43 is installed on the top outer wall of motor shaft 42, bearing bracket 44 is rotatably connected on the outer wall of motor shaft 42 through a bearing, and the end of bearing bracket 44 is welded on the inner wall of air outlet 31, and motor mounting seat 45 is installed at the bottom of brushless motor 41.

[0027] In the embodiment, the three-side air guide cover 22 is made of aluminum alloy material, and the surface is treated by anodic oxidation to enhance the heat conduction; the air guide cover 22 is designed in a gradually expanding flow channel to accelerate the diffusion of airflow and uniformly distribute, thereby improving the heat dissipation efficiency. The whole metal air bellow 1 is made of galvanized steel plate, and the top air outlet 31 is directly welded with the metal top cover 12 to form an efficient heat conduction path to quickly guide out the heat generated by the motor operation.

[0028] With reference to Figure 2 , the bottom plate 5 is welded on the outer wall of the bottom of the air bellow 1, and the filter screen 6 is arranged between the bottom plate 5 and the air bellow 1.

[0029] With reference to Figure 3 , the air bellow 1 comprises a bottom frame 11 and a top cover 12, wherein the bottom frame 11 and the top cover 12 are fixedly connected by screws, and the air outlet 31 is welded on the inner wall of the top cover 12.

[0030] With reference to Figure 2 , the air outlet 31 is fixedly connected with the air outlet pipe 9 through the flange on the top outer wall of the air outlet 31.

[0031] With reference to Figure 3 , the arrayed support legs 10 are welded on the outer wall of the bottom of the air bellow 1.

[0032] With reference to ​ , the maintenance opening 7 is arranged on one side of the outer wall of the bottom frame 11, and the maintenance door 8 is hinged on the inner wall of the maintenance opening 7.

[0033] Working principle:

[0034] Starting stage: after the brushless motor 41 is powered on, the target rotating speed is adjusted by the frequency conversion controller, and the motor shaft 42 drives the axial flow blade 43 to rotate at high speed to generate axial airflow.

[0035] Air intake and filtration: the external air is guided by the air guide cover 22 and enters the air bellow 1 from three sides, and the large particle dust is intercepted by the dustproof screen 21; the airflow further purifies by passing through the bottom filter screen 6.

[0036] Airflow acceleration and heat dissipation: the clean air is accelerated under the driving of the axial flow blade 43, flows through the surface of the brushless motor 41, and is quickly guided out through the wall of the metal air bellow 1 after absorbing the motor heat.

[0037] Silencing and air exhaust: the high-temperature airflow enters the air outlet 31, the sound-absorbing cotton 32 absorbs the noise generated by the rotation of the blade and the friction of the airflow; the airflow is discharged through the air outlet pipe 9 to complete the heat dissipation cycle.

[0038] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A super-silent high-heat-dissipation metal top-mounted ventilator comprising a bellows (1), characterized in that, The outer wall of the wind box (1) is provided with a wind guide assembly (2) on the periphery, and the wind guide assembly (2) comprises a dust screen (21) mounted on the inner wall of three sides of the wind box (1), and a wind guide cover (22) welded on the outer wall of three sides of the wind box (1), the outer wall of the top of the wind box (1) is provided with a sound attenuation assembly (3), and the sound attenuation assembly (3) comprises an air outlet (31) welded on the inner wall of the top of the wind box (1), and sound attenuation cotton (32) filled in the inner wall of the air outlet (31), the inside of the wind box (1) is provided with a fan driving mechanism (4).

2. The ultra-quiet, high-heat-dissipation, top-mounted ventilator of claim 1, wherein, The fan driving mechanism (4) comprises a brushless motor (41), a motor shaft (42), an axial blade (43), a bearing bracket (44) and a motor mounting seat (45), wherein the brushless motor (41) is arranged in the inside of the wind box (1), the motor shaft (42) is fixedly connected to the output shaft of the brushless motor (41) through a shaft coupling, the axial blade (43) is mounted on the top outer wall of the motor shaft (42), the bearing bracket (44) is rotatably connected to the outer wall of the motor shaft (42) through a bearing, and the end of the bearing bracket (44) is welded on the inner wall of the air outlet (31), and the motor mounting seat (45) is mounted on the bottom of the brushless motor (41).

3. The ultra-quiet, high-heat-dissipation, top-mounted ventilator of claim 1, wherein, The bottom plate (5) is welded on the outer wall of the bottom of the wind box (1), and a filter screen (6) is arranged between the bottom plate (5) and the wind box (1).

4. The ultra-quiet, high-heat-dissipation, top-mounted ventilator of claim 1, wherein, The wind box (1) comprises a bottom frame (11) and a top cover (12), wherein the bottom frame (11) and the top cover (12) are fixedly connected by screws, and the air outlet (31) is welded on the inner wall of the top cover (12).

5. The ultra-quiet, high-heat-dissipation, top-mounted ventilator of claim 1, wherein, The outer wall of the top of the air outlet (31) is fixedly connected with an air outlet pipe (9) through a flange.

6. The ultra-quiet, high-heat-dissipation, top-mounted ventilator of claim 1, wherein, The outer wall of the bottom of the wind box (1) is welded with an array of support legs (10).

7. The ultra-quiet, high-heat-dissipation, top-mounted ventilator of claim 4, wherein, The outer wall of one side of the bottom frame (11) is provided with an access hole (7), and the inner wall of the access hole (7) is hinged with an access door (8).

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