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CN-121993424-A - Fan and terminal equipment

CN121993424ACN 121993424 ACN121993424 ACN 121993424ACN-121993424-A

Abstract

A fan comprises a motor and fan blades, wherein the motor comprises a base, a rotating shaft, a bearing, a clamping ring and a shell. The rotating shaft comprises a first part and a second part which are connected with each other, the first part is positioned in the base, the bearing is positioned in the base and surrounds the first part, the clamping ring surrounds the second part and the bearing, the bearing is fixed between the base and the clamping ring along the axial direction of the rotating shaft, the clamping ring is fixed with the base and is used for fixing the bearing and limiting the rotating shaft, the shell is fixedly connected with the second part and is positioned at one side, away from the bearing, of the clamping ring, and the fan blade and the shell are fixed and surround the shell. The application further provides terminal equipment comprising the fan. The snap ring plays fixed bearing and spacing rotation axis's effect simultaneously, reduces other extra components, in limited installation space, multiplicable bearing along axial height, and the height of bearing increases, promotes the intensity of bearing, increases the spacing effect to the rotation axis simultaneously, then can promote the reliability of fan, prolongs the life of fan.

Inventors

  • GAO XIANGZHENG

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260508
Application Date
20241029

Claims (10)

  1. 1. A fan, comprising: an electric motor, comprising: A base having a receiving cavity; a rotary shaft including a first portion and a second portion connected to each other, the first portion having a first diameter R1, the second portion having a second diameter R2, the size relationship of R2 and R1 satisfying R2< R1, the first portion being located in the housing chamber; A bearing positioned in the receiving cavity and surrounding the first portion; A snap ring surrounding the second portion and the bearing, the bearing being fixed between the base and the snap ring in an axial direction of the rotation shaft, the snap ring having an inner diameter D, a size relationship of R2, R1, and D satisfying R2< D < R1, the snap ring being fixed to the base, and A housing fixedly connected to the second portion and located on a side of the snap ring facing away from the bearing, and And the fan blades are fixed with the shell and encircle the shell.
  2. 2. The fan of claim 1, wherein the snap ring includes a fixing portion and a limiting portion connected to each other, the fixing portion being located between the base and the bearing and abutting against the base in a radial direction of the rotation shaft, the limiting portion extending in the radial direction toward the second portion and contacting a surface of the bearing, an end portion of the limiting portion facing away from the fixing portion being located between the housing and the first portion, the limiting portion being configured to fix the bearing and limit the rotation shaft in the axial direction.
  3. 3. The fan of claim 2, wherein the base further comprises a first bottom wall and a first side wall, the housing cavity comprises a first mounting groove, the first bottom wall and the first side wall are surrounded to form the first mounting groove, the fixing portion is located in the first mounting groove, and the fixing portion abuts against the first side wall and has a space between the first bottom wall and the first bottom wall along the axial direction.
  4. 4. A fan in accordance with claim 3 wherein said securing portion is located between said first side wall and said bearing, said securing portion and said bearing having a spacing therebetween in said radial direction.
  5. 5. The fan of any of claims 3-4, wherein the base further comprises a second bottom wall and a second side wall, the receiving cavity further comprises a second mounting groove, the second bottom wall and the second side wall are surrounded to form the second mounting groove, the first mounting groove surrounds the second mounting groove, the bearing is located in the second mounting groove, and the bearing is fixed between the second bottom wall and the limiting portion along the axial direction.
  6. 6. The fan of claim 5, wherein the base includes a third bottom wall and a third side wall, the receiving cavity further includes a third mounting groove, the third bottom wall and the third side wall are defined to form the third mounting groove, the second mounting groove surrounds the third mounting groove, and the motor further includes wear plates positioned in the third mounting groove and between the third bottom wall and the first portion.
  7. 7. The fan of any of claims 2-6, wherein the surface of the limiting portion facing the bearing is provided with a relief groove, and a space is provided between the surface of the limiting portion facing the bearing and the first portion.
  8. 8. The fan as claimed in any one of claims 2 to 7, wherein the housing is provided with a through hole, and a part of a surface of the stopper is exposed to the through hole.
  9. 9. The fan of any of claims 1-8, further comprising a baffle, a coil, and a magnet, wherein the motor and the fan blade are housed in the baffle, wherein the coil and the base are secured to one another, and wherein the magnet and the housing are secured to one another.
  10. 10. A terminal device, comprising: Electronic component, and A fan as claimed in any one of claims 1 to 9 for dissipating heat generated by electronic components.

Description

Fan and terminal equipment Technical Field The application relates to the technical field of heat dissipation, in particular to a fan and terminal equipment. Background Some electronic components in the terminal equipment can generate heat in the working process, and in order to avoid the influence on the working performance and the user experience of the terminal equipment caused by the overhigh temperature of the product, a fan is generally adopted to cool the electronic components in an air-cooling way. With the trend of high performance and light weight of terminal equipment, the volume of the fan is correspondingly reduced, so that the reliability of the fan is easily reduced. Disclosure of Invention In a first aspect, an embodiment of the present application provides a fan capable of improving reliability, so as to solve the above-mentioned problem. The fan comprises a motor and fan blades, wherein the motor comprises a base, a rotating shaft, a bearing, a clamping ring and a shell. The base is provided with a containing cavity, the rotating shaft comprises a first part and a second part which are connected with each other, the first part is provided with a first diameter R1, the second part is provided with a second diameter R2, the size relation of R2 and R1 meets R2< R1, the first part is positioned in the containing cavity, the bearing is positioned in the containing cavity and surrounds the first part, the clamping ring surrounds the second part and the bearing, the bearing is fixed between the base and the clamping ring along the axial direction of the rotating shaft, the clamping ring is provided with an inner diameter D, the size relation of R2, R1 and D meets R2< D < R1, the clamping ring is fixed with the base, the shell is fixedly connected with the second part and is positioned on one side of the clamping ring, which is away from the bearing, and the fan blade is fixed with the shell and surrounds the shell. In the embodiment, the snap ring simultaneously plays a role of fixing the rotating shaft and limiting the bearing, a snap ring for limiting the rotating shaft is not required to be additionally arranged, in a limited installation space, the space for installing the snap ring can be used for increasing the height of the bearing along the axial direction, the height of the bearing is increased, the strength of the bearing is improved, meanwhile, the limiting effect on the rotating shaft is increased, the reliability of the fan can be improved, the service life of the fan is prolonged, the snap ring is omitted, the assembling step can be reduced in the process of assembling the fan, and the assembling efficiency is further improved. In one possible embodiment, the snap ring comprises a fixing portion and a limiting portion which are connected with each other, wherein the fixing portion is located between the base and the bearing and is propped against the base along the radial direction of the rotating shaft, the limiting portion extends towards the second portion along the radial direction and is in contact with the surface of the bearing, the end portion, deviating from the fixing portion, of the limiting portion is located between the shell and the first portion, and the limiting portion is used for fixing the bearing and limiting the rotating shaft along the axial direction. In the above embodiment, the fixing portion of the snap ring is used for fixedly connecting the snap ring and the base, and the limiting portion is used for axially fixing the bearing and axially limiting the rotation shaft, which is equivalent to one snap ring element and has multiple functions. In one possible embodiment, the base further includes a first bottom wall and a first side wall, the housing cavity includes a first mounting groove, the first bottom wall and the first side wall enclose to form the first mounting groove, the fixing portion is located in the first mounting groove, and the fixing portion abuts against the first side wall and has a space between the fixing portion and the first bottom wall along an axial direction. In the above embodiment, the fixing portion and the first bottom wall have a distance therebetween along the axial direction, so that the limiting portion can contact with the surface of the bearing to fix the bearing during assembling the fan. In one possible embodiment, the fixing portion is located between the first side wall and the bearing with a distance therebetween in a radial direction. In the embodiment, the fixing part and the bearing are radially spaced, namely the fixing part is not abutted against the bearing, so that the friction acting force between the bearing and the first part of the rotating shaft can be reduced, and meanwhile, the clamping ring is convenient to assemble on the base. In one possible implementation mode, the base further comprises a second bottom wall and a second side wall, the accommodating cavity further comprises a second mounting groove,