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CN-224228940-U - High-efficiency heat-dissipation motor fan blade and motor adopting same

CN224228940UCN 224228940 UCN224228940 UCN 224228940UCN-224228940-U

Abstract

The utility model discloses a high-efficiency heat dissipation motor fan blade and a motor adopting the same, wherein the high-efficiency heat dissipation motor fan blade comprises a hub, a shaft sleeve for a motor rotating shaft to pass through is arranged in the middle of the hub, the hub is in a cover shape, the surface of the hub gradually contracts from the edge to the center, a group of blades are uniformly arranged on the convex surface of the hub and positioned on the outer side of the shaft sleeve at intervals along the circumferential direction, the blades extend outwards all the time from the edge of the shaft sleeve, the outer ends of the blades exceed the outer edge of the hub, the whole blade is in a twisted shape, and the twisting angle of the blade is continuously changed from the direction close to the shaft sleeve to the direction far away from the shaft sleeve, so that the cross section of the blade is S-shaped. According to the fan blade, the fan blade is designed to be twisted, and the twisting angle of the fan blade is optimized, so that air flow can form uniform and stable flow on the surface of the fan blade, the heat dissipation efficiency is improved, the motor can be ensured to keep lower temperature in the long-time running process, and the performance and the service life of the motor are improved.

Inventors

  • LIN WEI
  • ZHOU BAIJUN
  • LIU JIANGLONG
  • ZHOU CHENGJIE

Assignees

  • 浙江大高电机有限公司

Dates

Publication Date
20260512
Application Date
20250623

Claims (10)

  1. 1. The efficient heat dissipation motor fan blade comprises a hub (1), wherein a shaft sleeve (11) is arranged in the middle of the hub (1), a shaft hole (101) through which a rotating shaft (61) of a motor passes is formed in the middle of the shaft sleeve (11), and the efficient heat dissipation motor fan blade is characterized in that the surface of the hub (1) gradually contracts from edge to center to enable the hub (1) to be in a cover shape, a group of blades (2) are arranged on the convex surface of the hub (1) at the outer side of the shaft sleeve (11) at uniform intervals along the circumferential direction, the blades (2) extend outwards all the time from the edge of the shaft sleeve (11), the end portions of the blades (2) exceed the outer edge of the hub (1), the blades (2) are twisted integrally, and the twisting angle of the blades (2) continuously changes from the direction close to the shaft sleeve (11) to the direction far away from the shaft sleeve (11), so that the cross section of the blades (2) is S-shaped.
  2. 2. The efficient heat dissipation motor fan blade as set forth in claim 1, wherein the twisting angle of the blade (2) ranges from 15 degrees to 45 degrees.
  3. 3. The efficient heat dissipation motor fan blade of claim 1, wherein the blade (2) is streamline, and one end of the blade (2) close to the shaft sleeve (11) is thinner, and one end far away from the shaft sleeve (11) is thicker.
  4. 4. The efficient heat dissipation motor fan blade as set forth in claim 1, wherein a group of radially distributed reinforcing ribs (3) are arranged on the concave surface of the hub (1), and the reinforcing ribs (3) extend from the peripheral wall of the shaft sleeve (11) to the outer edge of the hub (1).
  5. 5. The efficient heat dissipation motor fan blade as set forth in claim 1, wherein the hub (1) is provided with two heat dissipation holes (102) symmetrical with respect to the shaft sleeve (11).
  6. 6. The efficient heat dissipation motor fan blade as set forth in claim 1, wherein a plurality of diversion trenches distributed along the length direction of the blade (2) are arranged on the surface of the blade (2).
  7. 7. The efficient heat dissipation motor fan blade as defined in claim 1, wherein the hub (1) and the blades (2) are made of aluminum alloy materials.
  8. 8. The efficient heat dissipation motor fan blade as set forth in claim 7, wherein the blade (2) and the hub (1) are fixedly connected through high-strength bolts or rivets, and sealant is smeared at the connection position.
  9. 9. The motor comprises a shell (4), a stator (5) and a rotor (6) which are arranged in the shell (4), wherein the rotor (6) comprises a rotor iron core and a rotating shaft (61) arranged in the middle of the rotor iron core, and a heat dissipation fan blade is arranged at the rear end of the rotating shaft (61), and is characterized in that the heat dissipation fan blade adopts the high-efficiency heat dissipation motor fan blade according to claim 1, and the rotating shaft (61) is inserted into a shaft sleeve (11).
  10. 10. The motor according to claim 9, wherein the shaft (61) is keyed to the sleeve (11).

Description

High-efficiency heat-dissipation motor fan blade and motor adopting same Technical Field The utility model relates to the technical field of motors, in particular to a high-efficiency heat dissipation motor fan blade and a motor adopting the fan blade. Background The motor is an electromagnetic device for mutually converting electric energy and mechanical energy, and is widely applied to the fields of industry, traffic, household appliances and the like. In the running process of the motor, a large amount of heat can be generated, if the heat cannot be effectively dissipated in time, the motor temperature is too high, the performance and the service life of the motor are further affected, and even the motor fault can be possibly caused. Therefore, in the motor production process, a manufacturer usually sets a fan blade at the rear end (non-shaft extension end) of the motor, and the fan blade can synchronously rotate along with the rotating shaft of the motor, so that the ventilation in the motor is accelerated, and the purpose of heat dissipation is achieved. However, the conventional motor fan blades in the market have certain defects in the aspects of heat dissipation efficiency, fan blade stability, energy conservation and the like. For example, the traditional fan blade is not reasonable in blade shape and angle design, so that air flow distribution is uneven, heat dissipation effect is not ideal, vibration and noise are easy to generate due to the structure of the fan blade when the fan blade rotates at high speed, the running stability of a motor is affected, interference to surrounding environment is caused, and in addition, more electric energy is consumed when the traditional fan blade works, so that energy conservation and emission reduction are not facilitated. Disclosure of utility model The utility model provides a high-efficiency heat dissipation motor fan blade which is used for overcoming the problems in the prior art. According to the efficient heat dissipation motor fan blade, the blades are designed to be twisted, and the twisting angles of the blades are optimized, so that air flow can form uniform and stable flow on the surfaces of the blades, heat dissipation efficiency is improved, therefore, the motor can be ensured to keep lower temperature in the long-time running process, and the performance and the service life of the motor are improved. For the fan blade, the technical scheme of the application is as follows: The efficient heat dissipation motor fan blade comprises a hub, wherein a shaft sleeve for a motor rotating shaft to pass through is arranged in the middle of the hub, the surface of the hub gradually contracts from the edge to the center to enable the hub to be in a cover shape, a group of blades are arranged on the convex surface of the hub and located on the outer side of the shaft sleeve at uniform intervals along the circumferential direction, the blades extend outwards all the time from the edge of the shaft sleeve, the end parts of the blades exceed the outer edge of the hub, the whole blade is in a twisted shape, and the twisting angle of the blade is continuously changed from the direction close to the shaft sleeve to the direction far away from the shaft sleeve, so that the cross section of the blade is in an S shape. Compared with the prior art, the high-efficiency heat dissipation motor fan blade comprises the hub and the blades arranged on the hub, wherein the blades are integrally distorted, and the distortion angle is gradually changed from the direction close to the shaft sleeve to the direction far away from the shaft sleeve, so that the cross section of the blades is S-shaped, and the gradual distortion design enables the air flow to form uniform and stable flow on the surfaces of the blades, so that the air flow can be better guided, the turbulence and energy loss of the air flow are reduced, and the heat dissipation efficiency is improved. As an optimization, in the efficient heat dissipation motor fan blade, the range of the twisting angle of the fan blade may be 15 ° to 45 °. When the torsion angle of the blade is too large, fatigue of materials can be caused due to excessive torsion, the use reliability of the blade is affected, when the torsion angle of the blade is too small, torque fluctuation can be increased, and therefore the operation stability of the blade is affected, and continuous experiments show that the torsion angle of the blade is better at 15-45 degrees. In the high-efficiency heat dissipation motor fan blade, the blade is streamline, one end of the blade, which is close to the shaft sleeve, is thinner, and one end of the blade, which is far away from the shaft sleeve, is thicker. The streamline design of the blade can reduce the air resistance received by the blade during rotation, so that the blade can consume less electric energy during rotation, the energy-saving effect is realized, the current energy-saving and environment-friend