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CN-224215436-U - High-efficient convenient bathroom heater wind wheel fixing device

CN224215436UCN 224215436 UCN224215436 UCN 224215436UCN-224215436-U

Abstract

The utility model relates to a bathroom heater technical field, and disclose a high-efficient convenient bathroom heater wind wheel fixing device, set up inside the bathroom heater, this bathroom heater include wind wheel and rotating electrical machines, the rotating electrical machines with connect through the motor shaft between the wind wheel, annular slot has been seted up to the tip of motor shaft, annular slot inside is provided with the cotter pin, the cotter pin card is gone into annular slot is inside, works as the wind wheel with the rotating electrical machines is connected, the wind wheel is by along the motion of axial direction the cotter pin is spacing, the utility model discloses the advantage that has effectively prevented the compressive deformation of wind wheel easily leads to wind wheel axial compressive deformation after having solved nut locking among the prior art, and then produces vibration and noise's problem.

Inventors

  • YI SANSHAN
  • HUANG XIAOMING

Assignees

  • 浙江瑞亿电器制造有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (9)

  1. 1. The efficient and convenient bathroom heater wind wheel fixing device is arranged inside a bathroom heater and comprises a wind wheel (1) and a rotating motor (2), wherein the rotating motor (2) is connected with the wind wheel (1) through a motor shaft (3), and the efficient and convenient bathroom heater wind wheel fixing device is characterized in that an annular groove is formed in the end part of the motor shaft (3), a cotter pin (4) is arranged in the annular groove, the cotter pin (4) is clamped into the annular groove, and when the wind wheel (1) is connected with the rotating motor (2), the movement of the wind wheel (1) along the axial direction is limited by the cotter pin (4).
  2. 2. The efficient and convenient bathroom warmer wind wheel fixing device is characterized in that the end part of a motor shaft (3) is D-shaped to form a fixed end (32), the fixed end (32) comprises a plane parallel to the axis of the motor shaft to form an anti-rotation surface (33), and the annular grooves are distributed along the shape of the outer surface of the motor shaft (3).
  3. 3. The efficient and convenient bathroom warmer wind wheel fixing device according to claim 2, wherein a chamfer is arranged at the joint of the annular surface of the fixed end (32) and the anti-rotation surface (33), and the annular groove is formed in the annular surface area of the fixed end (32).
  4. 4. The efficient and convenient bathroom warmer wind wheel fixing device according to any one of claims 2-3 is characterized in that the cotter pin (4) is a B-shaped elastic cotter pin (4), and the lower half section of the cotter pin (4) is matched with the fixed end (32) and the annular groove.
  5. 5. The efficient and convenient bathroom warmer wind wheel fixing device according to claim 1 is characterized in that two ends of the cotter pin (4) extend out of the outer periphery of the motor shaft (3).
  6. 6. The efficient and convenient bathroom warmer wind wheel fixing device according to claim 1, wherein the tail end of the cotter pin (4) along the axial direction is provided with an open groove (41), and the open groove (41) is in a V shape.
  7. 7. The efficient and convenient bathroom warmer wind wheel fixing device according to claim 2 is characterized in that a limiting cover (5) is arranged between the wind wheel (1) and the cotter pin (4), a hole with the same size as the fixed end (32) is formed in the center of the limiting cover (5), and the thickness of the limiting cover (5) is the same as the distance from the lower edge of the annular groove to the upper surface of the wind wheel (1).
  8. 8. The efficient and convenient bathroom warmer wind wheel fixing device according to claim 7, wherein the limiting cover (5) is circular, at least four hollowed-out spaces (51) are formed in the limiting cover, reinforcing rib structures (52) are formed in the inner walls between the hollowed-out spaces (51), and the reinforcing rib structures (52) are radial.
  9. 9. The efficient and convenient bathroom warmer wind wheel fixing device according to claim 2 is characterized in that the part of the motor shaft (3) outside the fixed end (32) is of a cylindrical structure, and the diameter of a mounting hole at the center of the wind wheel (1) is the same as the diameter of the motor shaft (3).

Description

High-efficient convenient bathroom heater wind wheel fixing device Technical Field The utility model relates to a bathroom heater technical field specifically is a high-efficient convenient bathroom heater wind wheel fixing device. Background At present, a thread nut locking structure is generally adopted for fixing the bathroom warmer wind wheel and the motor, namely, external threads are cut at the shaft end of the motor, and the wind wheel is fixed by screwing nuts during assembly. The structure can meet basic requirements in a unidirectional rotation scene, and has the advantages of simple structure and low cost. For a bathroom heater motor which needs bidirectional rotation, such as switching of blowing and ventilation functions, a nut locking mode can be fixed by double nuts in a loose-proof or thread glue auxiliary mode, so that loosening can be prevented to a certain extent, and the running stability of the wind wheel is ensured. However, the screw nut locking mode has the obvious defects that firstly, axial pressure applied by a nut is easy to cause plastic deformation of a wind wheel blade or a hub, vibration and noise are further caused during operation, the service life of a product and user experience are influenced, secondly, the screw nut locking requirement is high under a bidirectional rotation working condition, locking structures such as a gasket and an adhesive are additionally added, the process is complex, the cost is increased, thirdly, the screw thread machining precision and the screw nut tightening force are high in technical requirements on assembly staff, and the production efficiency is low. The utility model aims to solve the technical pain points. Disclosure of Invention Aiming at the defects of the prior art, the utility model provides a high-efficiency convenient bathroom heater wind wheel fixing device which has the advantage of effectively preventing the compression deformation of the wind wheel and solves the problems that the axial compression deformation of the wind wheel is easy to cause after the nut is locked in the prior art, thereby generating vibration and noise. In order to achieve the purpose of effectively preventing the wind wheel from being deformed under pressure, the utility model provides a technical scheme that a high-efficiency convenient bathroom heater wind wheel fixing device is arranged inside a bathroom heater, the bathroom heater comprises a wind wheel and a rotating motor, the rotating motor is connected with the wind wheel through a motor shaft, an annular groove is formed in the end part of the motor shaft, a cotter pin is arranged in the annular groove, and when the wind wheel is connected with the rotating motor, the movement of the wind wheel along the axial direction is limited by the cotter pin. Preferably, the end part of the motor shaft is D-shaped to form a fixed end, namely the fixed end comprises a plane parallel to the axis of the motor shaft to form an anti-rotation surface, and the annular grooves are distributed along the shape of the outer surface of the motor shaft. Preferably, a chamfer is arranged at the joint of the annular surface of the fixed end and the anti-rotation surface, and the annular groove is formed in the annular surface area of the fixed end. Preferably, the cotter pin is a B-shaped elastic cotter pin, and the lower half section of the cotter pin is matched with the fixed end and the annular groove. Preferably, both ends of the cotter extend out of the outer periphery of the motor shaft. Preferably, an open slot is formed at the tail end of the cotter pin along the axial direction, and the open slot is in a V shape. Preferably, a limiting cover is arranged between the wind wheel and the cotter pin, a hole with the same size as the fixed end is formed in the center of the limiting cover, and the thickness of the limiting cover is the same as the distance from the lower edge of the annular groove to the upper surface of the wind wheel. Preferably, the limiting cover is circular, at least four hollowed-out spaces are formed in the limiting cover, reinforcing rib structures are formed in the inner walls between the hollowed-out spaces, and the reinforcing rib structures are radial. Preferably, the part of the motor shaft outside the fixed end is of a cylindrical structure, and the diameter of the mounting hole at the center of the wind wheel is the same as the diameter of the motor shaft. Compared with the prior art, the novel efficient and convenient bathroom warmer wind wheel fixing device has the advantages that 1, the efficient and convenient bathroom warmer wind wheel fixing device is provided with the annular groove at the end part of the motor shaft and is of an innovative structure of radially clamping and fixing the B-shaped elastic cotter pin, and compared with a traditional threaded nut locking mode, the novel efficient and convenient bathroom warmer wind wheel fixing device has the advantages that firstly