一种多重降噪风道系统的高速吹风机

Abstract

本实用新型公开了一种多重降噪风道系统的高速吹风机，旨在提供一种增强降噪效力、减弱风噪的多重降噪风道系统的高速吹风机。它包括机壳，机壳内弹性连接有马达；滤网架，机壳的后端口设为进风口，滤网架在进风口与机壳螺栓连接，滤网架内连接有多层滤网件；倒凸台，机壳内连接有发热架，倒凸台与发热架拆卸连接；连接筋位，机壳的前端口设为出风口并与连接筋位连接，发热架与连接筋位连接，出风口的端口外侧面呈收缩状，连接筋位的表面呈弧形状。本实用新型的有益效果是：提高吹风机通道内气流布置合理性优化风道布局；防止产生局部涡流和噪音叠加；多级降低噪声；结构强度高且便于装配；保障结构的装配效率、定位精度和稳定性；便于清理维护。

Claims

1. A high speed blower of a multiple noise reduction air duct system, characterized in that, include The housing (1) has a motor (2) elastically connected inside it. The filter frame (3) has an air inlet at the rear port of the housing (1). The filter frame (3) is bolted to the housing (1) at the air inlet. The filter frame (3) has multiple layers of filter elements connected inside. The inner wall of the filter frame (3) is a flow-guiding surface (5). The cross-sectional shape of the flow-guiding surface (5) is wedge-shaped. The filter elements are all provided with mesh holes, and the hole size increases from back to front. The space between the filter elements is set as the rectifier area (6). The front filter elements and the filter frame (3) are integrally injection molded and the mesh arrangement structure is honeycomb-shaped. The rear end of the filter frame (3) is snapped with an air inlet cap (17). An inverted protrusion (7) is provided. A heating element (8) is connected inside the housing (1). The inverted protrusion (7) is detachably connected to the heating element (8). The inner wall of the housing (1) is provided with a diffuser section (9). The diffuser section (9) is placed between the heating element (8) and the motor (2). The side of the inverted protrusion (7) is provided with a guide surface (10). The cross-sectional diameter of the diffuser section (9) and the guide surface (10) gradually increases from back to front. The front port of the housing (1) is set as an air outlet (31) and connected to the connecting rib (12). The heating frame (8) is connected to the connecting rib (12). The outer side of the air outlet (31) is constricted. The inner side of the air outlet (31) near the port is set as an air outlet section (13). The cross-sectional diameter of the air outlet section (13) gradually decreases from back to front. The surface of the connecting rib (12) is arc-shaped.

2. A high speed blower of a multiple noise reduction air duct system according to claim 1, wherein The filter element includes a first filter plate (4), a second filter plate (11), and a third filter plate (29). The second filter plate (11) is arranged close to the first filter plate (4). The inner cavity of the filter frame (3) is set as a flow guiding cavity (30). The first filter plate (4) is connected to the front end of the flow guiding cavity (30). The first filter plate (4) is connected to a limiting post (14). The second filter plate (11) is provided with a limiting insertion hole (15). The limiting post (14) is inserted into the limiting insertion hole (15). The inner wall of the flow guiding surface (5) is provided with a limiting groove (16). The second filter plate (11) is embedded in the limiting groove (16).

3. A high speed blower of a multiple noise reduction air duct system according to claim 2, wherein The air inlet tail cover (17) is connected to the second limiting post (18), the third filter plate (29) is provided with the second limiting insertion hole (19), the second limiting post (18) is inserted into the second limiting insertion hole (19), and the rectification area (6) is the space of the guide cavity (30) between the third filter plate (29) and the second filter plate (11).

4. The high speed blower of a multiple noise reduction air duct system according to claim 1, wherein, The filter element includes a front filter plate (32) and a rear filter plate (33). The front filter plate (32) is the front layer filter element. The front filter plate (32) and the filter frame (3) are integrally injection molded. The rectification area (6) is the space between the front filter plate (32) and the rear filter plate (33). The rear filter plate (33) is fitted with a rubber ring (34). One end of the rubber ring (34) abuts against the filter frame (3), and the other end of the rubber ring (34) abuts against the air inlet tail cover (17).

5. A high-speed blower with a multi-noise reduction air duct system according to claim 1, characterized in that, The motor (2) is provided with a soft rubber sleeve (20), and the motor (2) is sleeved with the soft rubber sleeve (20). The housing (1) is provided with a limiting groove (21), and the soft rubber sleeve (20) is embedded in the limiting groove (21).

6. A high speed blower of a multiple noise reduction air duct system according to claim 1, wherein The connecting ribs (12) are provided in several places. The connecting ribs (12) are connected to the junction of the inner wall surface of the air outlet (31) and the air outlet section surface (13). The surface of the connecting ribs (12) includes a windproof surface (22) and a wind-passing surface (23). The wind-passing surface (23) is placed on the side of the connecting ribs (12). The surface of the wind-passing surface (23) is a horizontal plane. The windproof surface (22) is arranged facing the air inlet. The windproof surface (22) is the arc-shaped surface of the connecting ribs (12).

7. The high speed blower of a multiple noise reduction air duct system of claim 1, wherein, The inverted protrusion (7) is connected to a buckle (24), and the heating frame (8) is provided with a slot (25). The buckle (24) engages with the slot (25).

8. A high speed blower of a multiple noise reduction air duct system according to claim 2, wherein, The mesh of the first filter plate (4) is set as mesh one (26), and the thickness of the first filter plate (4) is 2.5mm~5mm.

9. A high speed blower of a multiple noise reduction air duct system according to claim 8, wherein, The second filter plate (11) has mesh holes two (27), the diameter of mesh holes two (27) is 1.0mm~2.0mm, the hole spacing between mesh holes two (27) is 0.2mm, and the diameter and hole spacing of mesh hole one (26) are larger than those of mesh hole two (27).

10. A high speed blower of a multiple noise reduction air duct system according to claim 2, wherein, The third filter plate (29) has three meshes (28), the diameter of the three meshes (28) is 0.25 mm, and the distance between the three meshes (28) is 0.2 mm.

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