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CN-116772295-B - Air duct machine

CN116772295BCN 116772295 BCN116772295 BCN 116772295BCN-116772295-B

Abstract

The application relates to the technical field of air conditioners and discloses an air duct machine. The application provides an air duct machine which comprises a shell, a wind wheel assembly, a volute assembly and a power assembly. The wind wheel assembly comprises a rotating shaft and a wind wheel, the rotating shaft can drive the wind wheel to rotate around a first rotation center, the volute assembly comprises a volute and a sealing partition plate which are fixedly connected, the volute is covered on the wind wheel, the power assembly comprises a driving gear and a driven gear which are meshed, the driving gear is rotationally connected to a connecting plate in the shell, and the driven gear penetrates through the connecting plate and is fixedly connected with the sealing partition plate. The driving gear comprises oval gear teeth, so that displacement is generated in the interference direction deviating from the volute and the shell in the rotation process of the driven gear, and the distance between the second rotation center and the first rotation center is adjusted. According to the application, the rotation center position of the volute in the rotation process is regulated by the power component, so that the problem of interference when the volute rotates in the air pipe machine is avoided.

Inventors

  • TIAN ZHIQIANG
  • LI JING

Assignees

  • 青岛海尔空调器有限总公司
  • 青岛海尔空调电子有限公司
  • 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
20220311

Claims (10)

  1. 1. An air duct machine, comprising: A housing in which a connection plate is fixed; The wind wheel assembly comprises a rotating shaft and a wind wheel, the rotating shaft is fixedly penetrated with the wind wheel, the rotating shaft is rotatably arranged in the shell, and the rotating shaft can drive the wind wheel to rotate around a first rotation center; the volute assembly comprises a sealing baffle plate and a volute, wherein the volute is covered on the wind wheel and is fixedly connected with the sealing baffle plate, The power assembly comprises a driving gear and a driven gear which are in meshed transmission, the driving gear is rotationally connected to the connecting plate, the driven gear penetrates through the connecting plate and is fixedly connected with the sealing partition plate, and the driving gear rotates to enable the driven gear to drive the sealing partition plate and the volute to rotate around a second rotation center; The driving gear comprises oval gear teeth, so that displacement is generated in a first direction in the rotation process of the driven gear, the distance between the second rotation center and the first rotation center is adjusted, and the first direction is the interference direction deviating from the volute and the shell.
  2. 2. The ducted air conditioner of claim 1, wherein, The side plate and the bottom plate of the shell are respectively provided with a side air port and a lower air port which are vertical to each other, the sealing partition plate rotates to enable the air pipe machine to be switched between a first air outlet mode and a second air outlet mode, and air is taken in by the side air port and is taken out by the lower air port in the first air outlet mode; The power assembly is used for adjusting the distance between the second rotation center and the first rotation center in the switching process of the first air outlet mode and the second air outlet mode, so that the volute deviates from the position of the wheel center of the wind wheel.
  3. 3. The ducted air conditioner of claim 2, wherein the first direction includes: perpendicular to the base plate, or Perpendicular to the side plates.
  4. 4. The ducted air machine of claim 1, wherein the power assembly further includes: the first driving device is fixed on the connecting plate and comprises a driving output end, and the driving gear is arranged on the driving output end; The first driving device drives the driving gear to rotate and further drives the driven gear to rotate, so that the driven gear drives the sealing partition plate to rotate relative to the connecting plate.
  5. 5. The ducted air conditioner of claim 4, wherein the drive gear further comprises: the first gear body, the oval gear teeth are positioned at the periphery of the first gear body, the oval gear teeth are meshed with the driven gear, and, The first connecting column is fixedly connected with the driving output end and is positioned on the circle center of the oval gear teeth.
  6. 6. The ducted air conditioner of claim 5, further comprising a buffer mechanism, the buffer mechanism comprising: The buffer body is sleeved on the driven gear and is positioned at one side far away from the driving gear, An elastic member located on the buffer body, the elastic member being configured to provide a damping force for damping displacement during displacement of the sealing separator to define engagement of the driving gear with the driven gear; The connecting line of the circle center of the driving gear and the circle center of the driven gear is arranged on the extension line of the elastic direction of the elastic piece.
  7. 7. The ducted air conditioner of claim 6, further comprising: The bearing is movably arranged on the connecting plate and comprises a bearing inner ring and a bearing outer ring, the bearing inner ring is fixedly sleeved on the first connecting column, and the bearing outer ring is fixedly connected with the buffer body; the driven gear rotates to drive the bearing to move in the first direction.
  8. 8. The ducted air conditioner of claim 7, wherein the buffer body includes: The arc strip frame comprises an inner cambered surface and an outer cambered surface which are concentrically arranged, wherein the inner cambered surface is fixedly attached to the bearing outer ring, and, The convex column is fixed on the outer cambered surface; the buffer body further comprises a spring, and one end of the spring is sleeved on the convex column.
  9. 9. The ducted air conditioner of claim 8, wherein, The connecting plate is provided with a limiting hole, the first connecting column penetrates through the limiting hole, and the first gear body and the sealing partition plate are positioned on two sides of the connecting plate; the other end of the spring is abutted to the inner side wall of the limiting hole, the limiting hole is used for providing a moving track for the first connecting column, so that the volute is driven to deviate from the center of the wind wheel in the rotation process of the driven gear, and the volute can return to the concentric position of the wind wheel under the action of the elastic force of the spring.
  10. 10. The ducted air conditioner of claim 9, wherein, The maximum eccentric amount of the spiral case when rotating is the difference value between the major half axis and the minor half axis of the top ellipse of the elliptic gear teeth, and the length of the limiting hole in the first direction is larger than or equal to the maximum eccentric amount of the spiral case when rotating.

Description

Air duct machine Technical Field The application relates to the technical field of air conditioners, in particular to an air duct machine. Background With the improvement of living standard, the air conditioner becomes an indispensable household appliance for improving living quality, and has wide application. Most of air conditioning indoor units arranged on the wall surface above a room or on the ceiling of the room are lateral air outlets, hot air density is low during heating, hot air flows upwards due to the lateral air outlets, users in the lower area of the room cannot be blown, temperature distribution in the room is uneven, the problem of upper heat and lower cold is caused, and particularly, experience is poor for users who are easy to cool hands and feet. In the related art, in order to enable switching of the airflow direction of the air conditioning indoor unit. An air conditioner indoor unit and an air conditioner are disclosed. The air conditioner indoor unit comprises a shell and a rotary air duct assembly. The rotary air duct assembly is arranged in the shell, the rotary air duct assembly can rotate relative to the shell so that the indoor unit of the air conditioner can be switched between a first air outlet mode and a second air outlet mode, when the indoor unit of the air conditioner is in the first air outlet mode, air outside the shell enters from the first air outlet and is sent out from the second air outlet after flowing through the rotary air duct assembly, and when the indoor unit of the air conditioner is in the second air outlet mode, air outside the shell enters from the second air outlet and is sent out from the first air outlet after flowing through the rotary air duct assembly. The housing includes a fixed housing portion and a movable housing portion, the movable housing portion being movable in a direction away from the fixed housing portion, and a movement stroke allowing the rotary air duct assembly to freely rotate within the housing. The rotary air duct assembly comprises a centrifugal wind wheel assembly or an axial flow wind wheel assembly. In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: The existing rotatable air duct component of the air conditioner indoor unit capable of reversing air supply needs to provide additional rotary avoidance space. When the centrifugal wind wheel assembly is installed in a small-sized air conditioner indoor unit, the volute and the inner wall of the air conditioner indoor unit casing are easy to interfere in the rotation process of the centrifugal wind wheel assembly, and the air conditioner indoor unit is not smooth to operate. Disclosure of Invention The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows. The embodiment of the disclosure provides an air duct machine, wherein a driving gear comprises oval gear teeth, so that displacement is generated in an interference direction deviating from a volute and a shell in a rotation process of a driven gear, and the distance between a second rotation center and a first rotation center is adjusted. The existing air pipe machine ensures the air supply performance of the machine set, and the volute needs to be made as large as possible, but because the volute is of a non-circular structure, if the volute is installed in the air pipe machine shell, interference occurs when the volute rotates easily. The application can meet the requirement of a small-size air duct machine by adjusting the relative position of the spiral case, and simultaneously avoid the problem of motion interference. In some embodiments, an air duct machine includes a housing, a wind wheel assembly, a volute assembly, and a power assembly. The wind wheel assembly comprises a rotating shaft and a wind wheel, the rotating shaft is fixedly arranged in the shell in a penetrating manner, the rotating shaft is rotatably arranged in the shell, the wind wheel can be driven to rotate around a first rotation center by rotating, the volute assembly comprises a sealing partition plate and a volute, the volute is covered on the wind wheel and is fixedly connected with the sealing partition plate, the power assembly comprises a driving gear and a driven gear which are in meshed transmission, the driving gear is rotatably connected to the connecting plate, the driven gear is fixedly connected with the sealing partition plate in a penetrating manner, the driving gear rotates to drive the driven gear to rotate so as to drive the sealing partition plate and the volute to rotate around a second rotation center, the driving gear comprises oval gear teeth