Dust-free heat dissipation micro motor

Abstract

The application provides a dust-free heat dissipation micro motor, and belongs to the technical field of micro motors.The dust-free heat dissipation micro motor comprises a shell, an opening is arranged on one side of the shell, and a rotor component is rotatable in the interior of the shell.The rotor component is composed of an even number of winding parts, the even number of winding parts are all fixed on a rotating disc, a heat exchange chamber is arranged in the interior of the winding part, two heat exchange pipelines penetrating through the rotating disc are arranged on the heat exchange chamber, air can enter the interior of the heat exchange chamber from one of the heat exchange pipelines and be discharged from the other heat exchange pipeline when the rotating disc rotates, air can enter the interior of the heat exchange chamber from one of the heat exchange pipelines when the rotating disc rotates, the pressure in the interior of the heat exchange chamber is increased, the air in the interior of the heat exchange chamber is extruded from the other heat exchange pipeline, so that the heat exchange purpose is achieved, and in addition, the coil is wound on the winding part, so that the heat generated by the coil can be cooled, and the service life of the coil is improved.

Description

Technical Field

[0001] This invention belongs to the field of micro motor technology, specifically relating to a dust-free heat dissipation micro motor. Background Technology

[0002] Miniature motors are a type of motor with small size and capacity, and output power generally below several hundred watts. They have special requirements for application, performance, and environmental conditions. Miniature motors refer to motors with a diameter of less than 160mm or a rated power of less than 750W. Miniature motors are often used in control systems or transmission mechanical loads to realize functions such as detection, analysis, amplification, execution, or conversion of electromechanical signals or energy.

[0003] A dust-free heat dissipation micro motor is disclosed in Chinese patent CN109088514B, which includes a motor housing and a stator and a rotor installed inside the motor housing. The motor housing has mounting holes coaxially opened at both ends, and a first bearing is installed in each mounting hole. A roller is installed on the first bearing. An output shaft is coaxially arranged inside the roller. A support column is fixedly connected between the output shaft and the roller. A fan blade is installed on the output shaft inside the roller. The rotor includes multiple rotor laminations, which are sleeved and installed on the roller.

[0004] Because the coils on the rotor are located inside the housing, and there are no heat dissipation holes on the housing to dissipate heat from the coils, the coils cannot dissipate heat well during use, which can easily affect the service life of the coils. Summary of the Invention

[0005] The purpose of this invention is to provide a dust-free heat dissipation micro motor, which aims to solve the problem of heat dissipation of the coils on the rotor in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dust-free heat dissipation micro motor, a housing, wherein an opening is provided on one side of the housing;

[0007] The rotor assembly rotates inside the housing. The rotor assembly consists of an even number of winding sections, all of which are fixed on a rotating disk. A heat exchange chamber is provided inside the winding section. Two heat exchange pipes are provided in the heat exchange chamber, which penetrate the rotating disk. When the rotating disk rotates, air can enter the interior of the heat exchange chamber through one of the heat exchange pipes and exit through the other heat exchange pipe.

[0008] A coil is wound on a winding portion, with its two ends wound on two opposite winding portions respectively;

[0009] The stator is located inside the housing, and an even number of the winding sections are arranged in a ring array with the stator as the center.

[0010] A further technical solution of the present invention is that an air guide shroud is provided at the air inlet end of the heat exchange pipe, and the air guide shroud is mirror-mounted on another heat exchange pipe. The air inlet of the air guide shroud is located on one side of the heat exchange pipe and on the rotation path of the winding part.

[0011] A further technical solution of the present invention is that a cylindrical body is provided in the middle of the shell, a heat dissipation hole is formed in the middle of the cylindrical body, and a heat dissipation component is provided on the rotating disk that can dissipate heat inside the heat dissipation hole by rotation.

[0012] A further technical solution of the present invention is that the heat dissipation component includes a reciprocating screw disposed on a rotating disk, the reciprocating screw being located inside a heat dissipation hole, a piston plate being slidably connected inside the heat dissipation hole, the piston plate being threadedly connected to the reciprocating screw, an air inlet being disposed on the rotating disk, and a limiting structure for preventing the piston plate from rotating being disposed inside the heat dissipation hole.

[0013] A further technical solution of the present invention is that the limiting structure includes a limiting groove disposed inside the heat dissipation hole, and the piston plate is provided with a slider that slides inside the limiting groove.

[0014] A further technical solution of the present invention is that an electric brush is provided inside the housing, one end of the electric brush extends through to the outside of the housing, and a contact end is provided on the winding part to contact the electric brush, and the contact end is connected to the end of the coil.

[0015] A further technical solution of the present invention is that a protective cover is provided on the housing, the protective cover is provided with not less than two ventilation holes, the protective cover is provided with a flange, the flange abuts against the rotating disk, and ash collection grooves are provided on both the flange and the housing, with the two ash collection grooves overlapping each other.

[0016] A further technical solution of the present invention is that the housing is provided with a buckle, and the protective cover is provided with a slot that matches the buckle.

[0017] A further technical solution of the present invention is that a positioning member is fixedly connected to one end of the housing, the positioning member is located inside the heat dissipation hole, and one end of the reciprocating screw rotates inside the positioning member.

[0018] A further technical solution of the present invention is that the rotating disk is provided with an output shaft that penetrates the protective cover.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This dust-free heat dissipation micro motor allows air to enter the heat exchange chamber through one of the heat exchange pipes when the rotating disk rotates, pressurizing the heat exchange chamber and forcing the air inside the heat exchange chamber out through the other heat exchange pipe, thereby achieving the purpose of heat exchange. In addition, the coil is wound on the winding part, which can cool down the heat generated by the coil and improve the service life of the coil.

[0021] 2. This dust-free cooling micro motor, when the rotating disk rotates, drives the reciprocating screw to rotate. The rotation of the reciprocating screw drives the piston plate to slide inside the heat dissipation holes. The sliding of the piston plate pushes out the hot air inside the heat dissipation holes and draws in cool air on the other side, thereby achieving a further cooling effect. In addition, the movement of the piston plate can also scrape away the dust inside the heat dissipation holes, thereby achieving a further dust removal effect. Compared with the fan cooling method used in the background, this cooling method has less noise and less spindle vibration, so the spindle is less prone to damage, making the motor have a longer service life. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is an exploded structural diagram of a specific embodiment of the present invention;

[0024] Figure 2 This is an isometric sectional view of a specific embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the rotor component in a specific embodiment of the present invention;

[0026] Figure 4 This is an isometric sectional view of the housing in a specific embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of a specific embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the coil structure in a specific embodiment of the present invention.

[0029] In the diagram: 1. Shell; 2. Rotor assembly; 21. Winding section; 22. Rotary disk; 23. Heat exchange chamber; 24. Heat exchange pipe; 25. Contact end; 26. Air guide shroud; 3. Coil; 4. Stator; 5. Heat dissipation component; 51. Reciprocating lead screw; 52. Piston plate; 53. Air inlet; 6. Limiting structure; 61. Limiting groove; 62. Slider; 7. Brush; 8. Protective cover; 81. Vent hole; 82. Flange; 83. Ash trough; 84. Slot; 9. Positioning component; 11. Cylinder; 12. Heat dissipation hole; 13. Buckle. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1 , Figure 3 , Figure 4 , Figure 6 The present invention provides the following technical solution: a dust-free heat dissipation micro motor, comprising a housing 1, which is made of metal and has an opening on one side for assembling the motor, thus facilitating its production; a rotor component 2, which rotates inside the housing 1, and is composed of an even number of winding sections 21, all of which are fixed to a rotating disk 22. The winding sections 21 and the rotating disk 22 are integrally formed, so that the rotation of the winding sections 21 can drive the rotation of the rotating disk 22. A heat exchange chamber 23 is provided inside the winding section 21, and the heat exchange chamber 23 has an opening on it. Two heat exchange pipes 24 are provided that pass through the rotating disk 22. The heat exchange pipes 24 are connected to the interior of the heat exchange chamber 23. When the rotating disk 22 rotates, air can enter the interior of the heat exchange chamber 23 from one of the heat exchange pipes 24 and exit from the other heat exchange pipe 24, thereby achieving the purpose of heat exchange for the winding part 21. The coil 3 is wound on the winding part 21, and the two ends of the coil 3 are respectively wound on two opposite winding parts 21. The stator 4 is a permanent magnet fixed inside the housing 1. An even number of winding parts 21 are arranged in a ring array with the stator 4 as the center.

[0032] In a specific embodiment of the present invention, when the rotating disk 22 rotates, air can enter the interior of the heat exchange chamber 23 from one of the heat exchange pipes 24, thereby pressurizing the interior of the heat exchange chamber 23 and causing the air inside the heat exchange chamber 23 to be squeezed out from the other heat exchange pipe, thereby achieving the purpose of heat exchange. In addition, the coil is wound on the winding part 21, thereby cooling the heat generated by the coil and improving the service life of the coil.

[0033] See Figure 3 The air inlet of the heat exchange pipe 24 is provided with an air guide shroud 26. The air guide shroud 26 and the rotating disk 22 are integrally formed. The air guide shroud 26 is mirror-mounted on another heat exchange pipe 24. The air inlet of the air guide shroud 26 is located on one side of the heat exchange pipe 24 and on the rotation path of the winding part 21. When the rotating disk 22 rotates, the air inlet of the air guide shroud 26 can concentrate the air, making it easier for the air to enter the interior of the heat exchange pipe 24, thereby improving the heat exchange effect.

[0034] See Figure 3 Hehe Figure 4 A cylindrical body 11 is provided in the middle of the housing 1. The cylindrical body 11 and the housing 1 are integrally formed. A heat dissipation hole 12 is formed in the middle of the cylindrical body 11. The heat dissipation hole 12 is located in the middle of the housing 1, which can facilitate the heat dissipation of the motor. A heat dissipation component 5 is provided on the rotating disk 22, which can be used to dissipate heat inside the heat dissipation hole 12 by rotation. By providing the heat dissipation component 5, the heat dissipation efficiency of the heat dissipation hole 12 can be improved.

[0035] See Figure 1-2 The heat dissipation component 5 includes a reciprocating screw 51 mounted on a rotating disk 22. The reciprocating screw 51 and the rotating disk 22 are integrally formed. When the rotating disk 22 rotates, it drives the reciprocating screw 51 to rotate. The reciprocating screw 51 is located inside the heat dissipation hole 12 and is concentrically arranged with the rotating disk 22. A piston plate 52 is slidably connected inside the heat dissipation hole 12. The edge of the piston plate 52 contacts the inner wall of the heat dissipation hole 12. The piston plate 52 is threadedly connected to the reciprocating screw 51. When the reciprocating screw 51 rotates, it drives the piston plate 12 to slide inside the heat dissipation hole 12, thereby pushing out hot air from the heat dissipation hole 12 and drawing in cold air, thus improving the heat dissipation effect. An air inlet 53 is provided on the rotating disk 22. One side of the air inlet 53 is opposite to one side of the heat dissipation hole 12, which facilitates the intake of air into the heat dissipation hole 12. At the same time, the piston plate... 52 can also push dust out from the air inlet 53. The heat dissipation hole 12 is provided with a limiting structure 6 to prevent the piston plate 52 from rotating. By setting the limiting mechanism 6, when the reciprocating screw 51 rotates, the piston plate 52 can be prevented from rotating. When the rotating disk 22 rotates, it can drive the reciprocating screw 51 to rotate. The rotation of the reciprocating screw 51 can drive the piston plate 52 to slide inside the heat dissipation hole 12. The sliding of the piston plate 52 can push out the hot air inside the heat dissipation hole 12 and draw in cold air on the other side, thereby achieving a further heat dissipation effect. In addition, the movement of the piston plate 52 can also scrape off the dust inside the heat dissipation hole 12, thereby further achieving the dust removal effect. Compared with the background fan cooling, this cooling method has less noise and less spindle vibration. Therefore, the spindle is less likely to be damaged, making the motor have a longer service life.

[0036] See Figure 1 and Figure 2 The limiting structure 6 includes a limiting groove 61 disposed inside the heat dissipation hole 12. The limiting groove 61 is parallel to the axial direction of the heat dissipation hole 12. The piston plate 52 is provided with a slider 62 that slides inside the limiting groove 61. The piston plate 52 can be limited by the slider 62 and the groove to prevent the piston plate from rotating with the reciprocating screw 51.

[0037] See Figure 2 and Figure 3 Inside the housing 1, there is a brush 7. One end of the brush 7 extends through to the outside of the housing 1 and is connected to an external power source. The winding part 21 is provided with a contact end 25 that contacts the brush 7. The contact end 25 is made of conductive material and can directly contact the brush 7. The contact end 25 is connected to the end of the coil 3. When the contact end 25 contacts the brush 7, the coil 3 is energized, making the coil magnetic. Through the action of the stator 4, the rotor component 2 can be driven to rotate.

[0038] See Figure 1 The housing 1 is provided with a protective cover 8, which has multiple ventilation holes 81 evenly arranged on it. The protective cover 8 is provided with a flange 82, which abuts against the rotating disk 22 to prevent the rotating disk 22 from moving horizontally. Both the flange 82 and the housing 1 are provided with dust collection grooves 83, which overlap each other. When the piston plate 52 cleans the heat dissipation hole 12, the dust can fall from the dust collection grooves 83, making it easy to clean the dust.

[0039] Furthermore, the housing 1 is provided with a buckle 13, and the protective cover 8 is provided with a slot 84 that matches the buckle 13. The protective cover 8 can be fixed by the buckle 13 engaging with the slot 84. At the same time, the buckle 13 connection also facilitates the disassembly of the protective cover 8 for motor maintenance.

[0040] See Figure 3-4 One end of the housing 1 is fixedly connected to a positioning member 9. The positioning member 9 and the housing 1 are integrally formed. The positioning member 9 is located inside the heat dissipation hole 12. One end of the reciprocating screw 51 rotates inside the positioning member 9, so that the positioning member 9 can fix one end of the reciprocating screw 51 and prevent the reciprocating screw 51 from swinging when it rotates.

[0041] Furthermore, the rotating disk 22 is provided with an output shaft that penetrates the protective cover 8.

Claims

1. A dust-free heat-dissipating micro motor, characterized in that, include: A housing (1) having an opening on one side; The rotor component (2) rotates inside the housing (1). The rotor component (2) is composed of an even number of winding sections (21). The even number of winding sections (21) are all fixed on the rotating disk (22). The winding section (21) is provided with a heat exchange chamber (23). The heat exchange chamber (23) is provided with two heat exchange pipes (24) that pass through the rotating disk (22). When the rotating disk (22) rotates, air can enter the interior of the heat exchange chamber (23) from one of the heat exchange pipes (24) and exit from the other heat exchange pipe (24). A coil (3) is wound on a winding portion (21), with the two ends of the coil (3) respectively wound on two opposite winding portions (21); The stator (4) is disposed inside the housing (1), and an even number of the winding portions (21) are arranged in a ring array with the stator (4) as the center; A cylindrical body (11) is provided in the middle of the shell (1), and a heat dissipation hole (12) is formed in the middle of the cylindrical body (11). A heat dissipation component (5) is provided on the rotating disk (22) for heat dissipation inside the heat dissipation hole (12) by rotation. The heat dissipation component (5) includes a reciprocating screw (51) mounted on a rotating disk (22). The reciprocating screw (51) is located inside a heat dissipation hole (12). A piston plate (52) is slidably connected inside the heat dissipation hole (12). The piston plate (52) is threadedly connected to the reciprocating screw (51). An air inlet (53) is provided on the rotating disk (22). A limiting structure (6) for preventing the piston plate (52) from rotating is provided inside the heat dissipation hole (12).

2. The dust-free heat dissipation micro motor according to claim 1, characterized in that: The air inlet of the heat exchange pipe (24) is provided with an air guide shroud (26), which is mirror-mounted on another heat exchange pipe (24). The air inlet of the air guide shroud (26) is located on one side of the heat exchange pipe (24) and on the rotation path of the winding part (21).

3. The dust-free heat dissipation micro motor according to claim 1, characterized in that: The limiting structure (6) includes a limiting groove (61) disposed inside the heat dissipation hole (12), and a slider (62) that slides inside the limiting groove (61) is provided on the piston plate (52).

4. The dust-free heat dissipation micro motor according to claim 1, characterized in that: The housing (1) is provided with a brush (7) inside, one end of the brush (7) extends through to the outside of the housing (1), and the winding part (21) is provided with a contact end (25) that contacts the brush (7), and the contact end (25) is connected to the end of the coil (3).

5. The dust-free heat dissipation micro motor according to claim 1, characterized in that: The housing (1) is provided with a protective cover (8), the protective cover (8) is provided with not less than two ventilation holes (81), the protective cover (8) is provided with a flange (82), the flange (82) abuts against the rotating disk (22), and both the flange (82) and the housing (1) are provided with dust collection grooves (83), the two dust collection grooves (83) overlap each other.

6. The dust-free heat dissipation micro motor according to claim 5, characterized in that: The housing (1) is provided with a buckle (13), and the protective cover (8) is provided with a slot (84) that matches the buckle (13).

7. The dust-free heat dissipation micro motor according to claim 1, characterized in that: One end of the housing (1) is fixedly connected to a positioning member (9), which is located inside the heat dissipation hole (12), and one end of the reciprocating screw (51) rotates inside the positioning member (9).

8. A dust-free heat dissipation micro motor according to claim 5 or 6, characterized in that: The rotating disk (22) is provided with an output shaft that penetrates the protective cover (8).

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