CN212543581U

CN212543581U - Motor shaft heat abstractor for brushless DC motor

Info

Publication number: CN212543581U
Application number: CN202021710629.2U
Authority: CN
Inventors: 张锦; 袁梦; 杨杨
Original assignee: Suqian College
Current assignee: Suqian College
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-02-12
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a brushless direct current motor is with motor shaft heat abstractor. The utility model discloses a: the motor shell is rotatably sleeved on the outer side of the hollow motor shaft, and the inner wall of the top of the hollow motor shaft and the inner wall of the bottom of the hollow motor shaft are fixedly connected with the same connecting rod. Connecting rod one side fixedly connected with connecting axle's one end, the other end fixed mounting of connecting axle has first flabellum, the fixed framework that has cup jointed in the hollow motor shaft outside, framework one side sets up for the opening, circular motion is through driving the flabellum pivoted in, with the cold air then evenly blow to in the motor casing in the leading-in fan housing of hollow motor shaft, carry out comprehensive heat dissipation to motor shaft and motor element, it is relatively poor to the radiating effect of motor shaft to have solved current brushless DC motor, lead to continuous use, the motor shaft temperature rises, thereby influence its use strength's problem.

Description

Motor shaft heat abstractor for brushless DC motor

Technical Field

The utility model relates to an electrical equipment technical field specifically is a motor shaft heat abstractor for brushless DC motor.

Background

The motor is widely applied to mechanical equipment and production processes around us. While the design of electric machines is constantly improving, they are always generating heat due to energy losses and low energy efficiency. Currently, we achieve heat dissipation primarily by conductive cooling. .

The existing brushless direct current motor has poor heat dissipation effect on the motor shaft, so that the motor shaft is continuously used, and the temperature of the motor shaft rises, thereby influencing the use strength of the motor shaft.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless direct current motor is with motor shaft heat abstractor to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the method comprises the following steps: the motor shell is rotatably sleeved on the outer side of the hollow motor shaft, and the inner wall of the top of the hollow motor shaft and the inner wall of the bottom of the hollow motor shaft are fixedly connected with the same connecting rod. Connecting rod one side fixedly connected with connecting axle's one end, the other end fixed mounting of connecting axle has first flabellum, the fixed framework that has cup jointed in the hollow motor shaft outside, framework one side is the opening setting, and the one end of the equal fixedly connected with montant of framework top one side and bottom one side, horizontal hole has all been seted up to two montant one sides, and two horizontal downtheholes all rotate and install the cross axle, and the equal fixed mounting of two cross axle one ends has the second flabellum, and the equal fixed mounting of two cross axle other ends has drive gear, motor casing one side fixed mounting has the fan housing, and fixed mounting has fixed gear on the inner wall of fan housing.

Further, equal fixed mounting has a plurality of fin on hollow motor shaft top inner wall and the bottom inner wall, and a plurality of fin are equidistant evenly to be arranged, thereby promote with the area of contact of air promote the radiating efficiency to hollow motor shaft.

Furthermore, a plurality of air intakes have been seted up to motor casing one side, and the air outlet has all been seted up to motor casing top and bottom, the motor casing's of being convenient for ventilation.

Further, the fixed shafts are fixedly connected to two sides of the vertical rods, the rollers are sleeved on the outer sides of the four fixed shafts in a rotating mode, and the four rollers are connected with the inner wall of the fan housing in a rolling mode to position the vertical rods.

Furthermore, four fixed axle other ends all fixed mounting have a limiting plate, and four limiting plates carry on spacingly with gyro wheel one side activity butt that corresponds respectively to the gyro wheel.

Furthermore, the outer sides of the two transverse shafts are fixedly sleeved with limiting rings, and the two limiting rings are movably abutted to one sides of the corresponding vertical rods respectively to limit the transverse shafts.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a circular motion is done when driving flabellum pivoted, then evenly blow to the motor casing in through the leading-in fan housing of hollow motor shaft with cold air, carry out comprehensive heat dissipation to motor shaft and motor element, thereby solved current brushless DC motor relatively poor, lead to continuous use, motor shaft temperature rise, thereby influence its use strength's problem to the radiating effect of motor shaft.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the portion A of FIG. 1;

fig. 3 is a partially enlarged view of a portion B in fig. 1.

Reference numerals: 1. a motor housing; 2. a hollow motor shaft; 3. a heat sink; 4. an air inlet; 5. an air outlet; 6. a fan housing; 7. a connecting rod; 8. a connecting shaft; 9. a first fan blade; 10. a vertical rod; 11. a horizontal axis; 12. a second fan blade; 13. a transmission gear; 14. fixing a gear; 15. a limiting ring; 16. a fixed shaft; 17. a roller; 18. a limiting plate; 19. a frame body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, in which fig. 1 is a schematic front view of an embodiment of the present invention; FIG. 2 is an enlarged view of a portion of the portion A of FIG. 1; fig. 3 is a partial enlarged view of a portion B in fig. 1, a heat sink for a motor shaft of a brushless dc motor, comprising: motor casing 1 and hollow motor shaft 2, motor casing 1 rotates to cup joint in the hollow motor shaft 2 outside, and the same connecting rod 7 of fixedly connected with is gone up to 2 top inner walls of hollow motor shaft and bottom inner wall. Connecting rod 7 one side fixedly connected with connecting axle 8's one end, the other end fixed mounting of connecting axle 8 has first flabellum 9, hollow motor shaft 2 outside is fixed to have cup jointed framework 19, and framework 19 one side sets up for the opening, and the one end of the equal fixedly connected with montant 10 in framework 19 top one side and bottom one side, horizontal hole has all been seted up to two montants 10 one sides, and two horizontal downthehole all rotations are installed and are crossed axle 11, and the equal fixed mounting of two cross axle 11 one ends has second flabellum 12, and the equal fixed mounting of two cross axle 11 other ends has drive

gear

13, 1 one side fixed mounting of motor casing has fan housing 6, and fixed mounting has fixed gear 14 on the inner wall of fan housing 6 one side.

All fixed mounting has a plurality of fin 3 on 2 top inner walls of hollow motor shaft and the bottom inner wall, and a plurality of fin 3 are equidistant evenly arranged, thereby promote with the area of contact of air promote the radiating efficiency to hollow motor shaft 2.

A plurality of air intakes 4 have been seted up to 1 one side of motor casing, and air outlet 5 has all been seted up to 1 top of motor casing and bottom, the ventilation of the motor casing 1 of being convenient for.

The two sides of the two vertical rods 10 are fixedly connected with fixing shafts 16, the outer sides of the four fixing shafts 16 are rotatably sleeved with idler wheels 17, and the four idler wheels 17 are connected with the inner wall of the fan housing 6 in a rolling mode to position the vertical rods 10.

Limiting plates 18 are fixedly mounted at the other ends of the four fixing shafts 16, and the four limiting plates 18 are movably abutted against one sides of the corresponding rollers 17 respectively to limit the rollers 17.

The outer sides of the two transverse shafts 11 are fixedly sleeved with limiting rings 15, and the two limiting rings 15 are movably abutted to one sides of the corresponding vertical rods 10 respectively to limit the transverse shafts 11.

To sum up, the present invention provides a motor shaft heat dissipation device for brushless dc motor, when in operation, the hollow motor shaft 2 drives the connecting rod 7 to rotate, the connecting rod 7 drives the connecting shaft 8 to rotate, the connecting shaft 8 drives the first fan blade 9 to rotate, the first fan blade 9 blows air in the frame body 19 to one side, so as to introduce outside cold air into the hollow motor shaft 2 through one end of the hollow motor shaft 2 located at the outer side of the motor housing 1, and then enters the fan housing 6, the cold air exchanges heat with the hollow motor shaft 2 through the contact with the heat dissipation plate 3, so as to take away the heat on the hollow motor shaft 2, meanwhile, the frame body 19 drives two cross shafts 11 and two transmission gears 13 to do circular motion through two vertical rods 10, the fixed gear 14 fixedly arranged drives the two cross shafts 11 to rotate at high speed through the engagement with the two transmission, two cross axles 11 drive two second flabellum 12 and rotate at a high speed to blow in the air in the fan housing 6 through air intake 4 and dispel the heat to the device in the motor casing 1, and leave motor casing 1 through air outlet 5, thereby through forming quick air cycle, take out the heat that motor work produced fast, thereby dispel the heat to the motor, do benefit to the work that the motor lasts.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a brushless DC motor is with motor shaft heat abstractor which characterized in that includes: motor casing (1) and hollow motor shaft (2), motor casing (1) rotates to cup joint in the hollow motor shaft (2) outside, fixedly connected with same connecting rod (7) on hollow motor shaft (2) top inner wall and the bottom inner wall, the one end of connecting axle (8) is fixedly connected with on one side of connecting rod (7), the other end fixed mounting of connecting axle (8) has first flabellum (9), hollow motor shaft (2) outside fixed cover has connect framework (19), framework (19) one side is the opening setting, framework (19) top one side and bottom one side all fixedly connected with the one end of montant (10), horizontal hole has all been seted up to two montants (10) one side, horizontal downthehole all rotates and installs cross axle (11), two cross axle (11) one end all fixed mounting have second flabellum (12), two cross axle (11) other end all fixed mounting have drive gear (13, the fan is characterized in that a fan housing (6) is fixedly mounted on one side of the motor housing (1), a fixed gear (14) is fixedly mounted on the inner wall of one side of the fan housing (6), and the two transmission gears (13) are meshed with the fixed gear (14).

2. The heat dissipation device for the motor shaft of the brushless direct current motor according to claim 1, wherein a plurality of heat dissipation fins (3) are fixedly mounted on the top inner wall and the bottom inner wall of the hollow motor shaft (2), and the plurality of heat dissipation fins (3) are uniformly arranged at equal intervals.

3. The heat dissipating device for the motor shaft of the brushless direct current motor according to claim 1, wherein the motor housing (1) has a plurality of air inlets (4) formed at one side thereof, and the motor housing (1) has air outlets (5) formed at both the top and the bottom thereof.

4. The heat dissipation device for the motor shaft of the brushless direct current motor according to claim 1, wherein the two vertical rods (10) are fixedly connected with fixed shafts (16) at both sides, the outer sides of the four fixed shafts (16) are rotatably sleeved with rollers (17), and the four rollers (17) are rotatably connected with the inner wall of the fan housing (6).

5. The heat dissipation device for the motor shaft of the brushless direct current motor according to claim 4, wherein the other ends of the four fixed shafts (16) are fixedly provided with limiting plates (18), and the four limiting plates (18) are movably abutted against one side of the corresponding roller (17).

6. The heat dissipation device for the motor shaft of the brushless direct current motor according to claim 1, wherein the outer sides of the two lateral shafts (11) are fixedly sleeved with limiting rings (15), and the two limiting rings (15) are movably abutted against one side of the corresponding vertical rod (10).