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CN-121984266-A - Motor with wind tunnel type heat radiation system

CN121984266ACN 121984266 ACN121984266 ACN 121984266ACN-121984266-A

Abstract

The invention discloses a motor with a wind tunnel type heat dissipation system, which comprises a motor shell, a motor stator assembly, a motor rotor assembly, a motor shaft and a motor fan, wherein the motor shell comprises a wind tunnel type heat dissipation shell, a motor front end cover, a motor rear end cover and a motor fan, the motor stator assembly is arranged in the wind tunnel type heat dissipation shell, the motor rotor assembly is arranged in the motor stator assembly, the motor shaft is fixedly connected with the motor rotor assembly, two ends of the motor shaft respectively penetrate through the motor front end cover and the motor rear end cover and are in rotary connection with the motor front end cover and the motor rear end cover through motor bearings, and the motor fan is arranged at one end of the motor shaft, which is close to the motor rear end cover. The invention relates to the technical field of motor heat dissipation, in particular to a motor with a wind tunnel type heat dissipation system, which can optimize airflow direction, increase ventilation quantity and improve heat dissipation efficiency, and simultaneously has structural strength and installation suitability.

Inventors

  • He Yijiu
  • SHANG KAI

Assignees

  • 江苏淮海机电科技有限公司

Dates

Publication Date
20260505
Application Date
20251224

Claims (10)

  1. 1. The motor with the wind tunnel type heat dissipation system comprises a motor shell (1), a motor stator assembly (2), a motor rotor assembly (3), a motor shaft (4) and a motor fan (5), and is characterized in that the motor shell (1) comprises a wind tunnel type heat dissipation shell (11), a motor front end cover (12), a motor rear end cover (13) and a motor fan cover (14), the motor stator assembly (2) is arranged in the wind tunnel type heat dissipation shell (11), the motor rotor assembly (3) is arranged in the motor stator assembly (2), the motor shaft (4) is fixedly connected with the motor rotor assembly (3), and two ends of the motor shaft (4) penetrate through the motor front end cover (12) and the motor rear end cover (13) respectively and are connected with the motor front end cover (12) and the motor rear end cover (13) in a rotating mode through motor bearings (6), and the motor fan (5) is arranged at one end, close to the motor rear end cover (13), of the motor shaft (4); the wind tunnel type heat dissipation shell (11) is square in whole, a plurality of wind tunnel grooves (111) which are uniformly distributed are formed in the side wall in a penetrating manner, and the wind tunnel grooves (111) axially extend along the wind tunnel type heat dissipation shell (11), a plurality of short-density heat dissipation ribs (112) are arranged on the outer surface of the wind tunnel type heat dissipation shell (11), and the heat dissipation ribs (112) are axially distributed along the wind tunnel type heat dissipation shell (11) and are alternately distributed with the wind tunnel grooves (111); The motor front end cover (12) and the motor rear end cover (13) are assembled at two ends of the wind tunnel type heat dissipation shell (11) through fixing bolts (15) and are in sealing fit with the end face of the wind tunnel type heat dissipation shell (11), and heat dissipation through holes (115) are formed in positions, corresponding to the wind tunnel grooves (111), of the motor front end cover (12) and the motor rear end cover (13); The motor fan (14) covers the outside of the motor rear end cover (13), a plurality of groups of ventilation holes (143) are formed in the motor fan (14), the motor fan (5) is located in the motor fan (14), the motor fan (14) is of a back concave structure, and the back air inlet area is concave inwards to form an airflow guiding cavity (141).
  2. 2. The motor with the wind tunnel type heat radiation system as claimed in claim 1, wherein the wind tunnel grooves (111) of the wind tunnel type heat radiation casing (11) are uniformly arranged in 8 groups along the circumferential direction, and the wind tunnel type heat radiation casing (11) axially penetrates through the side wall of the wind tunnel type heat radiation casing (11).
  3. 3. The motor with a wind tunnel type heat radiation system according to claim 1, wherein the air flow guiding cavity (141) is funnel-shaped.
  4. 4. The motor with the wind tunnel type heat radiation system as set forth in claim 1, wherein one end of the heat radiation rib (112) of the wind tunnel type heat radiation casing (11) extends to the inside of the front end of the motor wind housing (14) to form an assembling guiding structure and an air flow guiding structure.
  5. 5. The motor with the wind tunnel type heat radiation system as claimed in claim 1, wherein sealing gaskets are arranged between the front end cover (12) of the motor and the end face of the wind tunnel type heat radiation machine shell (11) and between the rear end cover (13) of the motor and the end face of the wind tunnel type heat radiation machine shell (11).
  6. 6. The motor with the wind tunnel type heat radiation system as claimed in claim 1, wherein the motor fan (5) is fixedly connected with the motor shaft (4) through a flat key and synchronously rotates along with the motor shaft (4).
  7. 7. The motor with the wind tunnel type heat dissipation system as set forth in claim 1, wherein the motor fan housing (14) is detachably and fixedly connected with the motor rear end cover (13) through fixing screws (16), and the fixing screws (16) are provided with four groups and are distributed in a four-corner symmetrical mode.
  8. 8. The motor with the wind tunnel type heat radiation system as claimed in claim 1, wherein the wind tunnel type heat radiation machine shell (11) is provided with a first fixing hole (114) in a penetrating mode, the motor front end cover (12) is provided with a second fixing hole (121) in a penetrating mode, the motor rear end cover (13) is provided with a third fixing hole (131) in a penetrating mode, and the fixing bolts (15) penetrate into the third fixing hole (131), the first fixing hole (114) and the second fixing hole (121) in sequence and fix the wind tunnel type heat radiation machine shell (11), the motor front end cover (12) and the motor rear end cover (13), and the fixing bolts (15) are symmetrically provided with 8 groups along the axial direction of the wind tunnel type heat radiation machine shell (11).
  9. 9. The motor with the wind tunnel type heat radiation system as claimed in claim 1, wherein a first wire passing groove (113) is formed on the side wall of the wind tunnel type heat radiation machine shell (11).
  10. 10. The motor with the wind tunnel type heat dissipation system as set forth in claim 1, wherein a second wire passing groove (142) is formed in the side wall of the motor housing (14).

Description

Motor with wind tunnel type heat radiation system Technical Field The invention relates to the technical field of motor heat dissipation, in particular to a motor with a wind tunnel type heat dissipation system. Background In the running process of the motor, a large amount of heat can be generated, if the heat cannot be timely emitted, the temperature inside the motor can be increased, the running efficiency and the service life of the motor are affected, and even motor faults can be caused when the heat is severe. At present, square motors popular in the market are simpler in appearance design, and the design of a shell is mostly from the perspective of convenient installation, and the influence of the shell structure on the heat dissipation performance of the motor is not fully considered. Various long and thin radiating ribs are distributed on the surface of a shell of the conventional square motor, and radiating is achieved through the radiating ribs. But the heat radiation structure has obvious defects that the heat radiation coefficient is improved by increasing the air flow velocity of the metal surface at the core of air cooling heat radiation, and the heat radiation ribs of the traditional shell are designed to enable the air flow to be scattered to the periphery in a disordered way, so that the air blown out from the fan housing cannot completely pass through the heat radiation ribs, the heat radiation coefficient of the surface of the heat radiation ribs is difficult to effectively improve, and the heat exchange efficiency is lower. Meanwhile, the fan housing of the traditional motor is unreasonable in structural design, low in utilization rate of internal space, unsmooth in air flow discharge and easy to store in the fan housing, so that new air sucked subsequently is reduced, vicious circle is formed, and the heat dissipation effect is further reduced. In addition, the fixing mode adaptability of traditional fan housing is relatively poor, is difficult to satisfy the installation demand of the different condition of being qualified for the next round of competitions of motor, and the radiating rib structural strength of casing is not enough, warp easily, leads to the product rejection rate higher. Disclosure of Invention Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the motor with the wind tunnel type heat dissipation system, which can optimize the airflow direction, increase the ventilation quantity and improve the heat dissipation efficiency, and simultaneously has the advantages of structural strength and installation suitability. The motor with the wind tunnel type heat radiation system comprises a motor shell, a motor stator assembly, a motor rotor assembly, a motor shaft and a motor fan, wherein the motor shell comprises a wind tunnel type heat radiation shell, a motor front end cover, a motor rear end cover and a motor fan, the motor stator assembly is arranged in the wind tunnel type heat radiation shell, the motor rotor assembly is arranged in the motor stator assembly, the motor shaft is fixedly connected with the motor rotor assembly, two ends of the motor shaft respectively penetrate through the motor front end cover and the motor rear end cover and are in rotary connection with the motor front end cover and the motor rear end cover through motor bearings, and the motor fan is arranged at one end of the motor shaft close to the motor rear end cover. The wind tunnel type heat dissipation shell is square in whole, a plurality of uniformly distributed wind tunnel grooves are formed in the side wall in a penetrating mode, the wind tunnel grooves extend along the axial direction of the wind tunnel type heat dissipation shell, a plurality of short-density heat dissipation ribs are arranged on the outer surface of the wind tunnel type heat dissipation shell, the heat dissipation ribs are distributed along the axial direction of the wind tunnel type heat dissipation shell and are alternately distributed with the wind tunnel grooves, the motor front end cover and the motor rear end cover are assembled at two ends of the wind tunnel type heat dissipation shell through fixing bolts and are in sealing fit with the end faces of the wind tunnel type heat dissipation shell, heat dissipation through holes are formed in the positions, corresponding to the wind tunnel grooves, of the motor front end cover and the motor rear end cover so as to ensure gas circulation, the motor fan is arranged on the outer side of the motor rear end cover, a plurality of air holes are formed in the motor fan, the motor fan is in the motor fan cover, the motor fan is of a rear concave structure, and the back air inlet area is inwards concave to form an airflow guiding cavity. As further optimization of the invention, the wind tunnel grooves of the wind tunnel type heat dissipation shell are uniformly provided with 8 groups along the circumferential direction, and pen