Direct-current brushless motor with external heat dissipation mechanism

Abstract

The utility model relates to the technical field of motor heat dissipation, and discloses a direct current brushless motor with an external heat dissipation mechanism, which comprises a motor main body and a carrying cylinder, the motor main body is positioned in the carrying cylinder, a U-shaped seat is fixed at the bottom of the inner side of the carrying cylinder, and a plurality of first heat dissipation fins which are linearly arranged are fixed at the top of the inner side of the U-shaped seat. The top of the carrying cylinder is in threaded connection with a bolt, and the bottom end of the bolt is rotationally connected with a T-shaped carrying plate through a bearing. The bolt is screwed to rotate by using a wrench, so that the bolt pushes the T-shaped carrier plate to move downwards, the T-shaped carrier plate is promoted to be close to the U-shaped seat, the clamping of the motor main body is quickly completed, and a plurality of second heat dissipation fins arranged on the T-shaped carrier plate and a plurality of first heat dissipation fins arranged on the U-shaped seat can conduct heat generated during the operation of the motor main body. And then, under the action of the air inlet fan, heat exchange with air can be rapidly generated, and rapid heat dissipation of the motor main body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of motor heat dissipation, and more specifically, to a brushless DC motor with an external heat dissipation mechanism. Background Art

[0002] The brushless DC motor consists of an electric motor and a driver. It has the advantages of a traditional DC motor, but without the carbon brushes and slip rings. It can run at low speed and high power. It is not only small in size and light in weight, but also has the advantages of good stability, high efficiency, long life, low noise, and good speed-torque characteristics. It is widely used in industries such as automobiles, automation, aerospace, and home appliances.

[0003] Brushless DC motors are usually equipped with external cooling fans to help cool them down. However, it is difficult to meet the heat dissipation requirements of brushless DC motors under long-term operation by relying solely on cooling fans. As a result, the brushless DC motors accumulate a lot of heat under long-term operation, affecting their normal operation and causing a high probability of burning out the internal circuits, which is not conducive to the actual use of brushless DC motors. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a brushless DC motor with an external heat dissipation mechanism. By using a wrench to rotate the bolt, the bolt pushes the T-shaped carrier plate to move downward, causing the T-shaped carrier plate to move closer to the U-shaped seat, thereby quickly completing the clamping of the motor body. A plurality of second heat dissipation fins arranged on the T-shaped carrier plate and a plurality of first heat dissipation fins arranged on the U-shaped seat can both conduct the heat generated by the motor body during operation, so that the heat is quickly dispersed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a DC brushless motor with an external heat dissipation mechanism comprises a motor body and a carrier tube, the motor body is located inside the carrier tube, a U-shaped seat is fixed at the bottom of the inner side of the carrier tube, a plurality of first heat dissipation fins arranged in a linear arrangement are fixed at the top of the inner side of the U-shaped seat, a bolt is threadedly connected to the top of the carrier tube, a T-shaped carrier plate is rotatably connected to the bottom end of the bolt through a bearing, a plurality of second heat dissipation fins arranged in a linear arrangement are fixed on the T-shaped carrier plate, two guide rods are fixed on the top of the T-shaped carrier plate, a sliding groove for the guide rods to slide is provided on the top of the carrier tube, the motor body is arranged between the U-shaped seat and the T-shaped carrier plate, a plurality of third heat dissipation fins arranged in a linear arrangement are arranged inside the carrier tube, an air duct is fixed through the back of the carrier tube, an air intake fan is arranged inside the air duct, and water cooling components are arranged on the front and back sides of the carrier tube, and the water cooling components are used for auxiliary cooling of the motor body.

[0006] As a preferred technical solution of the utility model, a filter screen is provided at the air inlet end of the air duct.

[0007] As a preferred technical solution of the utility model, mounting plates are fixed to the front and rear sides of the carrier tube, and two mounting holes are formed on the mounting plate.

[0008] As a preferred technical solution of the utility model, the water cooling assembly includes a first water tank, two sleeves and two springs. The first water tank is arranged on the outside of the carrier tube, the two sleeves and the two springs are arranged on the inside of the carrier tube, the springs are sleeved on the outside of the sleeves, and a second water tank is fixed to one end of the two springs away from the first water tank.

[0009] As a preferred technical solution of the utility model, two limit rods are fixed on the second water tank, the other ends of the limit rods are inserted into the interior of the sleeve, and the limit rods are slidably matched with the inner wall of the sleeve.

[0010] As a preferred technical solution of the utility model, a water pump is arranged inside the first water tank, the water outlet end of the water pump is fixedly connected with a water supply pipe, the other end of the water supply pipe is connected with the second water tank, a return pipe is fixedly connected between the second water tank and the first water tank, two semiconductor refrigeration plates are arranged on the first water tank, and a water injection pipe is fixedly passed through the first water tank, and a valve is arranged on the water injection pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model uses a wrench to rotate the bolt, so that the bolt pushes the T-shaped carrier plate to move downward, prompting the T-shaped carrier plate to move closer to the U-shaped seat, and quickly completes the clamping of the motor body. The second heat dissipation fins arranged on the T-shaped carrier plate and the first heat dissipation fins arranged on the U-shaped seat can both conduct the heat generated when the motor body is running, so that the heat is quickly dispersed. Afterwards, under the action of the intake fan, heat exchange can be quickly generated with the air, thereby realizing rapid heat dissipation of the motor body and ensuring the normal operation of the motor body.

[0013] 2. The utility model can drive the water in the first water tank and the second water tank to circulate through the water pump in the first water tank, and conduct the heat generated by the motor body to the outside of the carrier tube with the help of the flowing water. The use of the spring can push the second water tank to be close to the motor body, so that the heat exchange effect between the motor body and the second water tank is better. The semiconductor refrigeration plate can help the water in the first water tank to cool down quickly, so that the water in the first water tank can be cooled more efficiently under the cooperation of the outside air and the semiconductor refrigeration plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2It is a structural schematic diagram of a U-shaped seat, a first heat dissipation fin, a T-shaped carrier plate and a second heat dissipation fin in the utility model;

[0016] Figure 3 It is a longitudinal section view of the carrier tube and the induced draft duct in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the water cooling component in the utility model.

[0018] In the figure: 1. motor body; 2. carrier tube; 3. U-shaped seat; 4. first heat dissipation fin; 5. bolt; 6. T-shaped carrier plate; 7. second heat dissipation fin; 8. guide rod; 9. third heat dissipation fin; 10. air duct; 11. intake fan; 12. filter; 13. mounting plate; 14. mounting hole; 15. first water tank; 16. sleeve; 17. spring; 18. second water tank; 19. limit rod; 20. water supply pipe; 21. return pipe; 22. semiconductor refrigeration plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 4 As shown, the utility model provides a DC brushless motor with an external heat dissipation mechanism, including a motor body 1 and a carrier tube 2, the motor body 1 is located inside the carrier tube 2, a U-shaped seat 3 is fixed to the bottom of the inner side of the carrier tube 2, a plurality of first heat dissipation fins 4 arranged in a linear arrangement are fixed to the top of the inner side of the U-shaped seat 3, a bolt 5 is threadedly connected to the top of the carrier tube 2, a T-shaped carrier plate 6 is rotatably connected to the bottom end of the bolt 5 through a bearing, a plurality of second heat dissipation fins 7 arranged in a linear arrangement are fixed to the T-shaped carrier plate 6, two guide rods 8 are fixed to the top of the T-shaped carrier plate 6, and the top of the carrier tube 2 is provided with a plurality of second heat dissipation fins 7 arranged in a linear arrangement. A slide groove for sliding the guide rod 8 is provided in the part, the motor body 1 is arranged between the U-shaped seat 3 and the T-shaped carrier plate 6, a plurality of third heat dissipation fins 9 arranged in a linear arrangement are provided inside the carrier tube 2, an air duct 10 is fixed through the back of the carrier tube 2, an air intake fan 11 is provided inside the air duct 10, a filter screen 12 is provided at the air inlet end of the air duct 10, water cooling components are provided on the front and rear sides of the carrier tube 2, the water cooling components are used for auxiliary cooling of the motor body 1, mounting plates 13 are fixed on the front and rear sides of the carrier tube 2, and two mounting holes 14 are provided on the mounting plate 13.

[0021] Use a wrench to rotate the bolt 5, so that the bolt 5 pushes the T-shaped carrier plate 6 downward, causing the T-shaped carrier plate 6 to move closer to the U-shaped seat 3, and quickly completes the clamping of the motor body 1. The multiple second heat dissipation fins 7 set on the T-shaped carrier plate 6 and the multiple first heat dissipation fins 4 set on the U-shaped seat 3 can both conduct the heat generated by the motor body 1 during operation, so that the heat is quickly dispersed. Afterwards, under the action of the air intake fan 11, heat exchange can be quickly generated with the air, thereby achieving rapid heat dissipation of the motor body 1 and ensuring the normal operation of the motor body 1. With the help of multiple third heat dissipation fins 9, the heat generated by the motor body 1 is dispersed and conducted, so that the heat dissipation effect of the motor body 1 is better.

[0022] Among them, the water cooling component includes a first water tank 15, two sleeves 16 and two springs 17. The first water tank 15 is arranged on the outside of the carrier tube 2, and the two sleeves 16 and the two springs 17 are all arranged inside the carrier tube 2. The spring 17 is sleeved on the outside of the sleeve 16. A second water tank 18 is fixed to one end of the two springs 17 away from the first water tank 15. Two limit rods 19 are fixed on the second water tank 18. The other end of the limit rod 19 is inserted into the sleeve 16, and the limit rod 19 slides with the inner wall of the sleeve 16.

[0023] With the help of the two springs 17, the second water tank 18 can be pushed close to the motor body 1, so that the heat exchange effect between the motor body 1 and the second water tank 18 is better.

[0024] Among them, a water pump is arranged inside the first water tank 15, and a water supply pipe 20 is fixedly connected to the water outlet end of the water pump, and the other end of the water supply pipe 20 is connected to the second water tank 18, and a return pipe 21 is fixedly connected between the second water tank 18 and the first water tank 15, and the water supply pipe 20 and the return pipe 21 are both retractable hoses, and two semiconductor refrigeration plates 22 are arranged on the first water tank 15, and a water injection pipe is fixedly passed through the first water tank 15, and a valve is arranged on the water injection pipe.

[0025] The water pump in the first water tank 15 can drive the water in the first water tank 15 and the second water tank 18 to circulate, and the heat generated by the motor body 1 can be conducted to the outside of the carrier tube 2 by means of the flowing water. The semiconductor refrigeration plate 22 can help the water in the first water tank 15 to cool down quickly, so that the water in the first water tank 15 can be cooled more efficiently due to the cooperation between the outside air and the semiconductor refrigeration plate 22.

[0026] The working principle and use process of this utility model:

[0027] When in use, the motor body 1 is inserted into the interior of the carrier tube 2 and is placed above the U-shaped seat 3. The second water tank 18 can be pressed against the motor body 1 under the push of the elastic force of the two limit rods 19. In this way, the heat generated by the operation of the motor body 1 will be conducted to the U-shaped seat 3 and the T-shaped carrier plate 6, and then to the first heat dissipation fins 4 through the U-shaped seat 3, and then to the second heat dissipation fins 7 through the T-shaped carrier plate 6. At the same time, the heat of the motor body 1 can also be conducted to the third heat dissipation fins 9. The air intake fan 11 is started to blow air into the interior of the carrier tube 2. The flowing cold air can exchange heat with the first heat dissipation fins 4, the second heat dissipation fins 7 and the third heat dissipation fins 9, thereby helping the motor body 1 to dissipate heat quickly.

[0028] Start the water pump in the first water tank 15, and at the same time, start the semiconductor refrigeration sheet 22. The water pump in the first water tank 15 can drive the water in the second water tank 18 and the first water tank 15 to circulate. In this way, the hot water after heat exchange in the second water tank 18 can return to the first water tank 15. The first water tank 15 exchanges heat with the outside to achieve initial cooling of the water. The semiconductor refrigeration sheet 22 can further cool the water in the first water tank 15, so that the water in the first water tank 15 is cooled quickly, thereby achieving continuous cooling of the motor body 1.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brushless DC motor with an external heat dissipation mechanism, comprising a motor body (1) and a carrier tube (2), characterized in that: The motor body (1) is located inside the carrier tube (2); a U-shaped seat (3) is fixed to the bottom of the inner side of the carrier tube (2); a plurality of first heat dissipation fins (4) arranged in a linear arrangement are fixed to the top of the inner side of the U-shaped seat (3); a bolt (5) is threadedly connected to the top of the carrier tube (2); the bottom end of the bolt (5) is rotatably connected to a T-shaped carrier plate (6) via a bearing; a plurality of second heat dissipation fins (7) arranged in a linear arrangement are fixed to the T-shaped carrier plate (6); two guide rods ( 8), a slide groove for the guide rod (8) to slide is provided on the top of the carrier tube (2), the motor body (1) is arranged between the U-shaped seat (3) and the T-shaped carrier plate (6), a plurality of third heat dissipation fins (9) arranged in a linear arrangement are arranged inside the carrier tube (2), an air duct (10) is fixedly passed through the back of the carrier tube (2), an air intake fan (11) is arranged inside the air duct (10), and water cooling components are arranged on the front and rear sides of the carrier tube (2), and the water cooling components are used for auxiliary cooling of the motor body (1).

2. The brushless DC motor with an external heat dissipation mechanism according to claim 1, characterized in that: A filter screen (12) is provided at the air inlet end of the air duct (10).

3. The brushless DC motor with an external heat dissipation mechanism according to claim 1, characterized in that: A mounting plate (13) is fixed to the front and rear sides of the carrier tube (2), and two mounting holes (14) are formed on the mounting plate (13).

4. The brushless DC motor with an external heat dissipation mechanism according to claim 1, characterized in that: The water cooling assembly comprises a first water tank (15), two sleeves (16) and two springs (17); the first water tank (15) is arranged outside the carrier tube (2); the two sleeves (16) and the two springs (17) are arranged inside the carrier tube (2); the springs (17) are sleeved on the outside of the sleeves (16); and a second water tank (18) is fixed to one end of the two springs (17) away from the first water tank (15).

5. The brushless DC motor with an external heat dissipation mechanism according to claim 4, characterized in that: Two limit rods (19) are fixed on the second water tank (18), the other ends of the limit rods (19) are inserted into the interior of the sleeve (16), and the limit rods (19) are slidably matched with the inner wall of the sleeve (16).

6. The brushless DC motor with an external heat dissipation mechanism according to claim 4, characterized in that: A water pump is arranged inside the first water tank (15), a water outlet end of the water pump is fixedly connected to a water supply pipe (20), the other end of the water supply pipe (20) is connected to the second water tank (18), a return pipe (21) is fixedly connected between the second water tank (18) and the first water tank (15), two semiconductor cooling plates (22) are arranged on the first water tank (15), and a water injection pipe is fixedly passed through the first water tank (15), and a valve is arranged on the water injection pipe.

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