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CN-121992638-A - Air inlet assembly and clothes dryer

CN121992638ACN 121992638 ACN121992638 ACN 121992638ACN-121992638-A

Abstract

The application relates to the technical field of clothes dryers, in particular to an air inlet assembly and a clothes dryer, and aims to solve the problems that vortex is easy to generate at an air inlet of a fan, the efficiency of the fan is affected, and noise is brought. The air inlet assembly comprises a fan, an air inlet channel and a first air inlet part, wherein the air inlet channel comprises a first air inlet part and a second air inlet part which are communicated, the first air inlet part comprises a bottom wall, a top wall and a peripheral side wall arranged between the bottom wall and the top wall, the bottom wall is provided with a first communication hole communicated with the air inlet of the fan, the second air inlet part is communicated with the peripheral side wall, the top wall comprises a first flow guide part far away from the second air inlet part, and the first flow guide part obliquely extends towards the direction close to the fan along the direction from the second air inlet part to the first air inlet part so that the distance between the first flow guide part and the air inlet of the fan is gradually reduced. The air inlet assembly provided by the application can reduce vortex at the air inlet of the fan, thereby being beneficial to improving the working efficiency of the fan and reducing noise caused by the vortex.

Inventors

  • BIAN GUOLONG
  • XU JING
  • XU SHENG
  • MA QIANG
  • HAO SHILONG

Assignees

  • 青岛海尔洗衣机有限公司
  • 青岛海尔智能技术研发有限公司
  • 海尔智家股份有限公司

Dates

Publication Date
20260508
Application Date
20260227

Claims (10)

  1. 1. An air intake assembly, characterized in that the air intake assembly comprises: a blower (100) comprising a blower intake (102); The air inlet duct (200) comprises a first air inlet part (201) and a second air inlet part (202) which are communicated, wherein the first air inlet part (201) comprises a bottom wall (2011), a top wall (2015) and a peripheral side wall (2012) arranged between the bottom wall (2011) and the top wall (2015), the bottom wall (2011) is provided with a first communication hole (2013) communicated with the fan air inlet (102), and the second air inlet part (202) is communicated with the peripheral side wall (2012); Wherein, the roof (2015) includes a first water conservancy diversion portion (2014) that is far away from second air inlet portion (202), along the direction of second air inlet portion (202) to first air inlet portion (201), first water conservancy diversion portion (2014) orientation is close to direction slope extension of fan (100), so that distance between first water conservancy diversion portion (2014) and fan air intake (102) reduces gradually.
  2. 2. The air intake assembly of claim 1, wherein the air intake duct (200) further comprises a first baffle (203) disposed inside the first air intake portion (201); The fixed end of the first partition board (203) is connected to the top wall (2015), the free end of the first partition board (203) extends towards the side where the first communication hole (2013) is located, the first side of the first partition board (203) extends to the side, away from the second air inlet part (202), of the first diversion part (2014), the second side of the first partition board (203) extends towards the direction close to the second air inlet part (202) so as to divide the inner space of the first air inlet part (201) into a first air inlet cavity and a second air inlet cavity which are respectively communicated with the second air inlet part (202), and the orthographic projection of the first partition board (203) on the fan (100) passes through the rotation center of the fan (100).
  3. 3. The air intake assembly of claim 1, wherein the air intake duct (200) further comprises a second baffle (204) and a third baffle (205) disposed inside the first air intake section (201); The fixed end of the second partition plate (204) and the fixed end of the third partition plate (205) are connected to the top wall (2015), the free end of the second partition plate (204) and the free end of the third partition plate (205) extend towards the side where the first communication hole (2013) is located, the first side of the second partition plate (204) and the first side of the third partition plate (205) extend to the side where the first diversion part (2014) is far away from the second air inlet part (202), and the second side of the second partition plate (204) and the second side of the third partition plate (205) extend towards the direction close to the second air inlet part (202) so as to divide the internal space of the first air inlet part (201) into a third air inlet cavity, a fourth air inlet cavity and a fifth air inlet cavity which are respectively communicated with the second air inlet part (202); Wherein, along the direction of the first side of second baffle (204) to the second side of second baffle (204), the distance between second baffle (204) and third baffle (205) increases gradually, second baffle (204) and orthographic projection of third baffle (205) on fan (100) are located fan (100) center of rotation's both sides.
  4. 4. The air intake assembly of claim 1, wherein the air mover (100) comprises an impeller (1011), the impeller (1011) comprising a front plate (1012) proximate the air mover air intake (102) and a rear plate (1013) opposite the front plate (1012), wherein the front plate (1012) has a smaller diameter than the rear plate (1013).
  5. 5. The air intake assembly of any of claims 1-4, wherein the blower (100) includes a volute (1014), the volute (1014) including an air outlet (103) and a volute tongue (1016) disposed on one side of the air outlet (103), the volute tongue (1016) including a first end side (1017) proximate the blower air intake (102) and a second end side (1018) distal from the blower air intake (102); Wherein the volute tongue (1016) extends obliquely in a direction away from the air outlet (103) in a direction from the first end side (1017) to the second end side (1018).
  6. 6. The air intake assembly of claim 5, wherein the volute (1014) comprises a spiral section (1019) and an expansion section (1020), the spiral section (1019) is provided with the volute tongue (1016) at a first end, the expansion section (1020) is disposed at an end of the volute tongue (1016) away from the spiral section (1019), and both the volute tongue (1016) and the wall of the expansion section (1020) are provided as a double-layer shell structure.
  7. 7. The air intake assembly of claim 6, wherein the volute (1014) includes an extension (1021), the extension (1021) being disposed at the second end of the spiral section (1019), the extension (1020) and the extension (1021) extending in a direction away from the spiral section (1019) and away from each other to cooperatively define the air outlet (103), wherein a wall of the extension (1021) is disposed as a double-layer housing structure.
  8. 8. The air intake assembly of claim 5, wherein the air intake assembly includes an air outlet duct (300), the air outlet duct (300) being in communication with the air outlet (103).
  9. 9. The air intake assembly of claim 8, wherein the volute (1014) comprises a first rear sidewall (1022) opposite the fan air intake (102), the air outlet duct (300) comprises a second rear sidewall (301) connected to the first rear sidewall (1022), wherein the first rear sidewall (1022) and/or the second rear sidewall (301) are provided as a double-layered thermal insulation structure, and a thermal insulation layer is provided in an interlayer of the double-layered thermal insulation structure.
  10. 10. A clothes dryer comprising an air intake assembly according to any one of claims 1 to 9.

Description

Air inlet assembly and clothes dryer Technical Field The application relates to the technical field of clothes dryers, and particularly provides an air inlet assembly and a clothes dryer. Background A clothes dryer is a common household appliance, and its working principle is to use heated air to flow through wet clothes in a drum, thereby taking away moisture and discharging it out of the machine, so as to achieve rapid drying of the clothes. In the process, the efficiency and stability of the drying air flow directly influence the clothes drying effect and the energy consumption level, and are key factors for determining the performance of the whole machine. The multi-wing centrifugal fan is widely applied to a ventilation system of a clothes dryer as a core power element for driving air flow to circulate because of simple and compact structure and relatively large air output. However, the air inlet of the fan is easy to generate vortex, which affects the efficiency of the fan and brings noise. Accordingly, there is a need in the art for a new solution to the above-mentioned problems. Disclosure of Invention The application aims to solve the technical problems that vortex is easy to generate at the air inlet of the fan, the efficiency of the fan is affected and noise is brought. The application provides an air inlet assembly, which comprises a fan, an air inlet channel and an air inlet channel, wherein the fan comprises a fan air inlet, the air inlet channel comprises a first air inlet part and a second air inlet part which are communicated, the first air inlet part comprises a bottom wall, a top wall and a peripheral side wall arranged between the bottom wall and the top wall, the bottom wall is provided with a first communication hole communicated with the fan air inlet, the second air inlet part is communicated with the peripheral side wall, the top wall comprises a first flow guide part far away from the second air inlet part, and the first flow guide part extends obliquely towards the direction close to the fan along the direction from the second air inlet part to the first air inlet part, so that the distance between the first flow guide part and the fan air inlet is gradually reduced. In some embodiments, the air inlet duct further comprises a first partition plate arranged inside the first air inlet portion, the fixed end of the first partition plate is connected to the top wall, the free end of the first partition plate extends towards the side where the first communication hole is located, the first side of the first partition plate extends to the side, away from the second air inlet portion, of the first flow guiding portion, the second side of the first partition plate extends towards the direction close to the second air inlet portion, so that the inner space of the first air inlet portion is divided into a first air inlet cavity and a second air inlet cavity which are respectively communicated with the second air inlet portion, and orthographic projection of the first partition plate on the fan passes through the rotation center of the fan. In some embodiments, the air inlet duct further comprises a second partition plate and a third partition plate arranged in the first air inlet portion, wherein the fixed end of the second partition plate and the fixed end of the third partition plate are connected to the top wall, the free end of the second partition plate and the free end of the third partition plate extend towards the side where the first communication hole is located, the first side of the second partition plate and the first side of the third partition plate extend to the side, away from the second air inlet portion, of the first guide portion, the second side of the second partition plate and the second side of the third partition plate extend towards the direction close to the second air inlet portion, so that the inner space of the first air inlet portion is divided into a third air inlet cavity, a fourth air inlet cavity and a fifth air inlet cavity which are respectively communicated with the second air inlet portion, and the distance between the second partition plate and the third partition plate gradually increases along the direction from the first side of the second partition plate to the second side of the second partition plate, and the second partition plate are located on the two sides of the fan. In some embodiments, the fan comprises an impeller comprising a front disk adjacent to the fan air inlet and a rear disk opposite the front disk, wherein the diameter of the front disk is smaller than the diameter of the rear disk. In some embodiments, the fan comprises a volute, the volute comprises an air outlet and a volute tongue arranged on one side of the air outlet, the volute tongue comprises a first end side close to the air inlet of the fan and a second end side far away from the air inlet of the fan, and the volute tongue extends obliquely towards the direction far a