CN214707387U

CN214707387U - IP55 industrial ceiling fan motor with external cooling structure

Info

Publication number: CN214707387U
Application number: CN202121274338.8U
Authority: CN
Inventors: 李俞
Original assignee: Guangdong Zhaoqing Deton Co ltd
Current assignee: Guangdong Zhaoqing Deton Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-12
Anticipated expiration: 2031-06-08

Abstract

An IP55 industrial ceiling fan motor with an external cooling structure comprises a stator assembly and a rotor assembly; the rotor assembly comprises an upper end cover, a rotor shell, magnetic steel attached to the interior of the rotor shell, a lower end cover and a heat dissipation cylinder sleeved on the rotor shell, wherein a plurality of heat dissipation ribs are longitudinally distributed on the outer wall of the heat dissipation cylinder; and a plurality of blades are radially distributed on the surface of the lower end cover. And a heat radiation fan is not required to be additionally arranged, and the installation structure is simplified. When the rotor shell rotates, the heat dissipation aluminum cylinder and the lower end cover are driven to rotate, the heat dissipation ribs of the heat dissipation aluminum cylinder and the lower end cover enable the surface of the motor to generate strong air convection, and the temperature rise of the motor is greatly reduced through the air convection.

Description

IP55 industrial ceiling fan motor with external cooling structure

Technical Field

The utility model belongs to the technical field of the ceiling fan technique and specifically relates to the aspect of industry ceiling fan IP55 protection level motor heat radiation structure improves.

Background

In the design of large ceiling fan motors for modern industry, particularly permanent magnet synchronous motors, because magnetic steel is easy to damage, the motors are generally designed into IP55 protection grade motors with higher waterproof and dustproof grades. However, the heat dissipation effect of the IP55 protection-level motor is poor, which leads to the temperature rise inside the motor, the service life is short, and meanwhile, in order to ensure that the temperature rise of the motor does not exceed the limit, the number of materials for using the iron core and the copper wire is large, and the cost is high. Some motors are additionally provided with a heat radiation fan for increasing heat radiation, so that the structure is complex and the installation is difficult.

Disclosure of Invention

To sum up, the utility model discloses an IP55 protection level motor's that solves the industry ceiling fan the poor technique of radiating effect is not enough, and provides an IP55 industry ceiling fan motor from taking outer cooling structure.

For solving the technical problem of the utility model, the technical scheme of adoption is:

an IP55 industrial ceiling fan motor with an external cooling structure comprises a stator assembly and a rotor assembly; the stator assembly comprises a stator shaft, a hub sleeved on the stator shaft, a stator core sleeved on the hub and a copper wire winding embedded on the stator core; the rotor assembly comprises an upper end cover, a rotor shell, magnetic steel and a lower end cover; the upper end cover and the lower end cover are respectively fixed at the upper end and the lower end of the rotor shell and are respectively connected with the stator shaft through an upper bearing and a lower bearing in a rotating way; the magnetic steel is arranged on the inner wall of the rotor shell; the method is characterized in that: a heat dissipation cylinder is sleeved outside the rotor shell, and a plurality of heat dissipation ribs are longitudinally distributed on the outer wall of the heat dissipation cylinder; and a plurality of blades are radially distributed on the surface of the lower end cover.

As to the technical scheme of the utility model for further limiting includes:

the number of the heat dissipation ribs on the outer wall of the heat dissipation cylinder is the same as that of the blades on the surface of the lower end cover, and the heat dissipation ribs and the blades are in one-to-one correspondence to form uniformly distributed air passages.

The heat dissipation cylinder is a heat dissipation aluminum cylinder.

The heat dissipation ribs are uniformly distributed on the outer wall of the heat dissipation cylinder in the circumferential direction.

The air inlet cavity is reserved in the center of the surface of the lower end cover, each blade forms a circular ring structure on the surface of the lower end cover, and the outer side end of each blade extends to the lower portion of the bottom end of the heat dissipation rib.

The lower end cover ribs are in a divergence shape from the outer edge extending from the center of the end cover, are high and young, and can generate strong airflow when rotating, just like a heat dissipation wind wheel.

The utility model has the advantages that: 1. the motor does not need to be additionally provided with a cooling fan, and the mounting structure is simplified. 2. The heat dissipation cylinder is connected with the rotor shell in a tight fit mode, and the temperature rise in the motor can be quickly transmitted to the heat dissipation cylinder through the rotor shell. 3. The ribs of the lower end cover and the blades of the heat dissipation cylinder jointly form air passages with multiple sections uniformly distributed, so that a strong convection air field is generated on the surface of the motor, the temperature of the heat dissipation cylinder can be effectively reduced by the strong convection air field, the temperature rise of the motor is reduced, and the cost of the motor is saved.

Drawings

FIG. 1 is a schematic view of the overall installation of the application process of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of the motor of the present invention;

FIG. 3 is a schematic view of the heat dissipating aluminum cylinder of the present invention;

FIG. 4 is a schematic view of the lower end cap of the present invention;

fig. 5 is a schematic view of the front view structure of the motor of the present invention;

fig. 6 is a schematic top view of the motor of the present invention;

fig. 7 is a schematic view of the heat dissipation principle of the motor of the present invention.

Detailed Description

The structure of the present invention will be further described with reference to the accompanying drawings and preferred embodiments of the present invention.

Referring to fig. 1, the utility model discloses a from IP55 industry ceiling fan motor of taking outer cooling structure belongs to the external rotor motor, and stator module hangs fixedly through the stator shaft, and flabellum 1 fixed mounting is on the rotor subassembly.

Referring to fig. 2, the present invention specifically includes a stator assembly and a rotor assembly; the stator assembly comprises a stator shaft 11, a hub 12 sleeved on the stator shaft 11, a stator core 13 sleeved on the hub 12 and a copper wire winding 19 embedded on the stator core 12; the rotor assembly comprises an upper end cover 20, a rotor shell 15, magnetic steel 14 and a lower end cover 17; the upper end cover 20 and the lower end cover 17 are respectively fixed at the upper end and the lower end of the rotor shell 15 and are respectively connected with the stator shaft 11 in a rotating way through an upper bearing 10 and a lower bearing 18; the magnetic steel 14 is arranged on the inner wall of the rotor shell 15; in order to solve the technical problem of poor heat dissipation effect of the IP55 protection-level motor, the rotor housing 15 is externally sleeved with a heat dissipation cylinder, the heat dissipation cylinder preferably adopts a heat dissipation aluminum cylinder 16, the heat dissipation aluminum cylinder 16 is fixed on the outer surface of the rotor housing 15 through tight fit, as shown in fig. 3, a plurality of heat dissipation ribs 161 are longitudinally distributed on the outer wall of the heat dissipation cylinder; every two adjacent heat dissipation ribs 161 form a first air channel 162. As shown in fig. 4, a plurality of vanes 171 are radially distributed on the surface of the lower end cover, and similarly, every two adjacent vanes 171 form a second air passage 172.

Referring to fig. 2 to 7, when the motor of the present invention is powered on in the air, the copper wire winding 19 and the magnetic steel 14 push the rotor housing 15 to rotate under the electromagnetic interaction, and drive the upper end cover 20, the heat dissipation aluminum cylinder 16, and the lower end cover 17 to rotate synchronously. The copper wire winding 19 and the magnetic steel 14 start to generate heat, and the heat of the copper wire winding 19 is transferred to the rotor shell 15 through the stator core 13, the hub 12, the stator shaft 11, the upper bearing 10, the lower bearing 18, the upper end cover 20 and the lower end cover 17; while the magnetic steel 14 transfers heat directly to the rotor housing 15.

When the lower end cover 17 rotates, the air in the second air passage 172 forms a plurality of air flows to be thrown out all around under the action of centrifugal force and along with the action of the blades 171, and the air is dispersed to the circumferential surface of the heat dissipation aluminum cylinder 16 and continuously and rapidly ascends along the first air passages 162 between the heat dissipation ribs 161 of the heat dissipation aluminum cylinder 16, so that cold air continuously formed rises to the outer circle of the motor from the bottom of the motor, and finally leaves the motor, and air circulation of strong convection is formed, so that the heat of the heat dissipation aluminum cylinder 14 can be rapidly taken away, and the heat of the rotor shell 13 is taken away through heat transfer, the blades 171 also serve as radiating fins, the temperature inside the motor can be continuously transferred to the rotor shell 15 and then to the heat dissipation aluminum cylinder 16, and finally, the heat inside the whole motor is taken away through the strong convection circulation, and the temperature rise of the motor is reduced.

In order to make the second air passage 172 and the first air passage 162 butt-jointed, which is beneficial to the rapid passing of the air flow and achieves better heat dissipation effect, the number of the heat dissipation ribs 161 on the outer wall of the heat dissipation cylinder is the same as that of the blades 171 on the surface of the lower end cover 17, and the heat dissipation ribs correspond to the blades 171 on the surface of the lower end cover to form uniformly distributed air passages. The heat dissipating ribs 161 are preferably circumferentially and uniformly distributed on the outer wall of the heat dissipating cylinder.

In order to facilitate the air below the lower end cover 17 to better enter the second air duct 172, the central position of the surface of the lower end cover 17 is provided with an air inlet cavity 173, each blade forms a circular ring structure on the surface of the lower end cover, and the outer side end of each blade extends to the lower part of the bottom end of the heat dissipation rib 162.

While the preferred embodiments of the present invention have been described in detail, it should be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and in light of the above teachings. Therefore, the technical solutions according to the present invention, which can be obtained by logical analysis, reasoning or limited experiments based on the prior art, should be within the scope of protection defined by the claims.

Claims

1. An IP55 industrial ceiling fan motor with an external cooling structure comprises a stator assembly and a rotor assembly; the stator assembly comprises a stator shaft, a hub sleeved on the stator shaft, a stator core sleeved on the hub and a copper wire winding embedded on the stator core; the rotor assembly comprises an upper end cover, a rotor shell, magnetic steel and a lower end cover; the upper end cover and the lower end cover are respectively fixed at the upper end and the lower end of the rotor shell and are respectively connected with the stator shaft through an upper bearing and a lower bearing in a rotating way; the magnetic steel is arranged on the inner wall of the rotor shell; the method is characterized in that: a heat dissipation cylinder is sleeved outside the rotor shell, and a plurality of heat dissipation ribs are longitudinally distributed on the outer wall of the heat dissipation cylinder; and a plurality of blades are radially distributed on the surface of the lower end cover.

2. The IP55 industrial ceiling fan motor with external cooling structure of claim 1, wherein: the number of the heat dissipation ribs on the outer wall of the heat dissipation cylinder is the same as that of the blades on the surface of the lower end cover, and the heat dissipation ribs and the blades are in one-to-one correspondence to form uniformly distributed air passages.

3. The IP55 industrial ceiling fan motor with external cooling structure of claim 1, wherein: the heat dissipation cylinder is a heat dissipation aluminum cylinder.

4. The IP55 industrial ceiling fan motor with external cooling structure of claim 1 or 2, wherein: the heat dissipation ribs are uniformly distributed on the outer wall of the heat dissipation cylinder in the circumferential direction.

5. The IP55 industrial ceiling fan motor with external cooling structure of claim 1 or 2, wherein: the air inlet cavity is reserved in the center of the surface of the lower end cover, each blade forms a circular ring structure on the surface of the lower end cover, and the outer side end of each blade extends to the lower portion of the bottom end of the heat dissipation rib.