CN215186218U

CN215186218U - Low temperature rise motor

Info

Publication number: CN215186218U
Application number: CN202121554924.8U
Authority: CN
Inventors: 陈石香; 陈启县; 林星江
Original assignee: Hengsu Holdings Co ltd
Current assignee: Hengsu Holdings Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-12-14
Anticipated expiration: 2031-07-08

Abstract

The low-temperature-rise motor comprises a shell, a rear end cover and a fan, wherein the rear end cover and the fan are arranged at the non-shaft-extension end of the motor; the shell is provided with a group of air guide holes distributed along the circumferential direction, the air guide holes extend from the non-shaft extension end of the motor to the shaft extension end to form air flow channels penetrating through two ends of the shell, and the bottom of each air flow channel is provided with a group of long-strip-shaped heat dissipation fins; correspondingly, a group of air guide grooves are arranged on the rear end cover, and each air guide groove is connected with an inlet of one air guide hole. The air guide holes distributed along the circumferential direction are formed in the shell, so that air can circulate on the shell, heat can be taken away in time, and a good heat dissipation effect is achieved; a group of radiating fins is arranged at the bottom of the air flow channel, so that the contact area of the air guide hole and air is increased, and the radiating rate is improved; meanwhile, the rear end cover is provided with the group of air guide grooves, so that air is quickly brought into the air guide holes, heat is taken out of the shell, the motor has the characteristic of high heat dissipation speed, and the temperature rise of the motor is low in the running process of the motor.

Description

Low temperature rise motor

Technical Field

The utility model relates to a motor technical field, concretely relates to motor with low temperature rises characteristic.

Background

The motor is a power motor which realizes electric energy conversion and transmission according to the electromagnetic induction law, and the motor mainly has the function of generating driving torque to be used as a power source of various electrical equipment and mechanical equipment to drive loads to operate.

The temperature rise of the motor during operation is an important factor in determining its performance. The motor is easy to burn out due to overhigh temperature rise in the running process of the motor, so that the higher the temperature rise of the motor is, the higher the requirement on the insulation grade of a winding is. It is known in the art that the temperature rise of a motor depends on the heat dissipation and heat generation during operation of the motor. In order to dissipate heat in time, manufacturers generally set a heat dissipation fan at a non-shaft-extending end of the motor, and the fan rotates along with a rotating shaft of the motor in the operation process of the motor to accelerate air circulation inside the motor. However, for some motors with higher heat dissipation requirements, the simple arrangement of the fan cannot meet the requirements, so that the motors are easily burnt out under certain specific working conditions, and production is affected. Therefore, it is necessary to optimize and improve the structure of the heat dissipation system inside the motor, and improve the heat dissipation performance of the motor, so as to meet the use requirements of some working conditions with high heat dissipation performance of the motor.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a low temperature rise motor. The utility model discloses a low temperature rises motor has the fast characteristics of radiating rate, and at the motor operation in-process, the motor temperature rise is lower, can satisfy some user demands to the higher operating mode of motor heat dissipation requirement.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the low-temperature-rise motor comprises a shell, a rear end cover and a fan, wherein the rear end cover and the fan are arranged at the non-shaft-extension end of the motor; the fan is connected with a rotating shaft of the motor, and the rear end cover is connected to the shell; the rear end cover is provided with a fan cover to isolate the fan from the outside; the shell is provided with a group of air guide holes distributed along the circumferential direction, the air guide holes extend from the non-shaft extension end of the motor to the shaft extension end to form air flow channels penetrating through two ends of the shell, and the bottom of each air flow channel is provided with a group of long-strip-shaped heat dissipation fins; correspondingly, a group of air guide grooves are arranged on the rear end cover, and each air guide groove is connected with an inlet of one air guide hole.

Compared with the prior art, the low temperature rise motor of the utility model has the advantages that the air guide holes distributed along the circumferential direction are formed in the shell, the air guide holes extend from the non-shaft extension end of the motor to the shaft extension end to form the air flow channel penetrating through the two ends of the shell, so that air can circulate along the air flow channel, heat can be taken away in time, a better heat dissipation effect is achieved, the bottom of the air flow channel is provided with the long-strip-shaped heat dissipation fins, the contact area between the air guide holes and the air is increased, and the heat dissipation rate is further improved; meanwhile, the rear end cover is provided with the group of air guide grooves, each air guide groove is connected with the inlet of one air guide hole, air is smoothly and quickly guided into the air guide holes (the wind resistance is small) through the air guide grooves, the heat dissipation speed is further accelerated, the flowing noise of air is reduced, and therefore in the running process of the motor, the temperature rise of the motor is low, and the use requirements of working conditions with high heat dissipation requirements on the motor can be met.

Preferably, each air guiding hole of the low temperature rise motor is provided with an air guiding groove.

Preferably, in the low temperature rise motor, the top of at least one strip-shaped heat dissipation fin in each air flow channel is connected to the wall of the air guide hole. The top of the radiating fin is connected with the wall of the air guide hole, heat can be conducted from the bottom of the air guide hole to the top, heat dissipation is facilitated, meanwhile, the radiating area is increased to a certain extent, the radiating effect is good, and the radiating fin at the moment is equivalent to a reinforcing rib and can also play a role in increasing certain structural strength.

Preferably, in the low temperature rise motor, two ends of the heat dissipation fin are respectively located at an inlet and an outlet of the air guide hole. The radiating fins penetrate through the air guide holes, the contact area of the radiating fins and air reaches the maximum limit allowed by design, and the radiating efficiency is high.

Preferably, in the low temperature rise motor, the cross-sectional shape of the heat dissipation fins may be rectangular. The section of the radiating fin is designed to be rectangular, and the radiating fin has the characteristic of easy manufacture.

Preferably, in the low temperature rise motor, the thickness of the heat dissipation fins may be 1 to 2 mm.

Preferably, in the low temperature rise motor, an air guide plate is disposed inside the fan, and an air guide curved surface connected to an inlet of the air guide groove is disposed on the air guide plate. Due to the structural design, the air flow resistance is small, the air can flow into the air guide groove more smoothly and then enters the air guide hole, high heat dissipation efficiency can be obtained, and meanwhile, the noise caused by air circulation can be reduced. Further, the air guide curved surface can be in a spherical surface shape. Experiments show that the wind guide curved surface is designed into a spherical surface shape, the wind resistance is low, and the wind guide effect is good.

Preferably, in the low temperature rise motor, the number of the air guide holes is four, and the air guide holes are circumferentially distributed at intervals of 90 ° in pairs, two of the air guide holes are respectively located on two sides of the bottom of the motor, and the other two air guide holes are respectively located on two sides of the top of the motor. By adopting the structural design, the air guide holes are distributed at intervals of 90 degrees on the circumference in pairs, the design is attractive, and the two air guide holes are respectively positioned on two sides of the bottom of the motor, so that the structural strength of the motor base is better.

Drawings

Fig. 1 is a schematic structural diagram of a low temperature rise motor according to the present invention;

fig. 2 is a schematic structural diagram of the low temperature rise motor of the present invention (with the fan housing removed);

fig. 3 is a schematic structural view of the rear end cap of the present invention;

fig. 4 is a schematic structural diagram of a fan according to the present invention;

fig. 5 is a schematic structural view (side view) of the fan of the present invention;

fig. 6 is a schematic structural diagram of the housing of the present invention.

The labels in the figures are: 1-rear end cover, 101-air guide groove; 2-fan, 201-air deflector, 2011-air guide curved surface; 3-shell, 301-air guide hole, 302-heat radiation fin; 4-wind shield.

Detailed Description

The present application will be further described with reference to the following drawings and detailed description (examples), but the present application is not limited thereto. The contents not specifically described below are all common technical knowledge in the art.

Example (see fig. 1-6):

the low-temperature-rise motor comprises a shell 3, a rear end cover 1 and a fan 2, wherein the rear end cover 1 and the fan 2 are arranged at the non-shaft-extension end of the motor; the fan 2 is connected with a rotating shaft of the motor, and the rear end cover 1 is connected to the shell 3; the rear end cover 1 is provided with a fan cover 4 to isolate the fan 2 from the outside; the shell 3 is provided with a group of air guide holes 301 distributed along the circumferential direction, the air guide holes 301 extend from the non-shaft extension end of the motor to the shaft extension end to form air flow channels penetrating through two ends of the shell 3, and the bottom of each air flow channel is provided with a group of long-strip-shaped heat dissipation fins 302; correspondingly, a group of air guide grooves 101 are arranged on the rear end cover 1, and each air guide groove 101 is connected with an inlet of one air guide hole 301.

In the low-temperature-rise motor of the embodiment, the casing 3 is provided with the group of air guide holes 301 distributed along the circumferential direction, the air guide holes 301 extend from the non-shaft extension end of the motor to the shaft extension end to form the air flow channel penetrating through two ends of the casing 3, so that air can circulate along the air flow channel, heat is taken away in time, a good heat dissipation effect is achieved, the bottom of the air flow channel is provided with the group of strip-shaped heat dissipation fins 302, the contact area between the air guide holes 301 and the air is increased, and the heat dissipation rate is further improved; meanwhile, the rear end cover is provided with the group of air guide grooves 101, each air guide groove 101 is connected with the inlet of one air guide hole 301, the air guide grooves 101 enable air to be smoothly and quickly guided into the air guide holes 301 (small in wind resistance), the heat dissipation speed is further accelerated, and the air flowing noise is reduced, so that the motor is low in temperature rise in the operation process, and the use requirements of working conditions with high heat dissipation requirements on the motor can be met.

In this embodiment, each air guiding hole 301 is provided with one air guiding slot 101.

In this embodiment, in each air flow channel, the top of one elongated heat dissipation fin 302 is connected to the wall of the air guiding hole 301. The top of the heat dissipation fin 302 is connected with the wall of the air guiding hole 301, so that heat can be conducted from the bottom of the air guiding hole 301 to the top, heat dissipation is facilitated, meanwhile, the heat dissipation area is increased to a certain extent, the heat dissipation effect is good, and the heat dissipation fin 302 at the moment is equivalent to a reinforcing rib and can also play a role in increasing certain structural strength.

In this embodiment, two ends of the heat dissipation fin 302 are respectively located at the inlet and the outlet of the air guiding hole 301. The heat dissipation fins 302 are arranged through the air guide holes, so that the contact area between the heat dissipation fins 302 and air reaches the maximum allowable design limit, and the heat dissipation efficiency is high.

In this embodiment, the cross-sectional shape of the heat dissipation fins 302 is rectangular. The sectional shape of the heat dissipating fin 302 is designed to be rectangular, which is easy to manufacture.

In this embodiment, the thickness of the heat dissipation fins 302 is 1.5 mm.

In this embodiment, an air guiding plate 201 is disposed inside the fan 2, and an air guiding curved surface 2011 connected with an inlet of the air guiding groove 101 is disposed on the air guiding plate 201. Due to the structural design, the air flow resistance is small, the air can flow into the air guide groove more smoothly and then enters the air guide holes 301, high heat dissipation efficiency can be obtained, and meanwhile, the noise caused by air circulation can be reduced. Further, the air guide curved surface 2011 may be spherical. Experiments show that the air guide curved surface 2011 is designed into a spherical surface shape, so that the air resistance is low, and the air guide effect is good.

In this embodiment, the number of the air guiding holes 301 is four, and the air guiding holes 301 are distributed in a 90 ° interval in a circumferential direction, two of the air guiding holes 301 are respectively located at two sides of the bottom of the motor, and the other two air guiding holes 301 are respectively located at two sides of the top of the motor. By adopting the structural design, the air guide holes 301 are distributed at intervals of 90 degrees on the circumference in pairs, the design is attractive, and the two air guide holes 301 are respectively positioned on two sides of the bottom of the motor, so that the structural strength of the motor base is better.

The above general description of the invention and the description of its specific embodiments in this application should not be construed as limiting the scope of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the scope of the present application according to the disclosure of the present application without departing from the components of the present invention.

Claims

1. The low-temperature-rise motor comprises a shell (3), a rear end cover (1) and a fan (2), wherein the rear end cover is arranged at the non-shaft-extension end of the motor; the fan (2) is connected with a rotating shaft of the motor, and the rear end cover (1) is connected to the shell (3); the rear end cover (1) is provided with a fan cover (4) to isolate the fan (2) from the outside; the method is characterized in that: the motor is characterized in that a group of air guide holes (301) distributed along the circumferential direction are formed in the shell (3), the air guide holes (301) extend from the non-shaft extension end of the motor to the shaft extension end to form air flow channels penetrating through two ends of the shell (3), and a group of long-strip-shaped heat dissipation fins (302) are arranged at the bottom of the air flow channels; correspondingly, a group of air guide grooves (101) are arranged on the rear end cover (1), and each air guide groove (101) is connected with an inlet of one of the air guide holes (301).

2. The cryogenic motor of claim 1, wherein: each air guide hole (301) is provided with an air guide groove (101).

3. The cryogenic motor of claim 1, wherein: in each air flow channel, the top of at least one long-strip-shaped heat dissipation fin (302) is connected with the wall of the air guide hole (301).

4. The cryogenic motor of claim 1, wherein: two ends of the radiating fin (302) are respectively positioned at the inlet and the outlet of the air guide hole (301).

5. The cryogenic motor of claim 1, wherein: the cross section of the radiating fin (302) is rectangular.

6. The cryogenic motor of claim 5, wherein: the thickness of the radiating fins (302) is 1-2 mm.

7. The cryogenic motor of claim 1, wherein: an air guide plate (201) is arranged on the inner side of the fan (2), and an air guide curved surface (2011) connected with an inlet of the air guide groove (101) is arranged on the air guide plate (201).

8. The cryogenic motor of claim 7, wherein: the air guide curved surface (2011) is spherical.

9. A cryogenic motor according to any one of claims 1 to 8, wherein: the number of the air guide holes (301) is four, the air guide holes are distributed in a 90-degree interval manner in the circumferential direction, two air guide holes (301) are respectively located on two sides of the bottom of the motor, and the other two air guide holes (301) are respectively located on two sides of the top of the motor.