Energy-saving direct current motor

Abstract

The invention relates to the technical field of direct current motors, in particular to an energy-saving direct current motor which comprises a motor shell, a rotor assembly is arranged in the motor shell, a rotatable motor shaft is arranged on the rotor assembly, an air inlet arc face and an air outlet net face are arranged on the motor shell, and a linkage vibration mechanism driven by the motor shaft is arranged in the motor shell. The linkage vibration mechanism is in transmission connection with a dust filtering frame capable of synchronously rotating and vibrating, the dust filtering frame is fixedly communicated with an air inlet shaft barrel for supplying air into the motor shell, the air inlet shaft barrel is sleeved with a gear barrel which coaxially and reversely rotates with the air inlet shaft barrel, and the gear barrel is provided with a front gear ring and a rear gear ring. Rotation and vibration of the dust filtering frame are achieved through the linkage vibration mechanism, the air inlet dust filtering effect of the direct current motor is improved in combination with the tensioning brushing and dust shaking structure of the cotton filter belt, and the self-cleaning, shaking dust removal and dust removal functions of the air inlet dust filtering structure of the motor are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of DC motors, and particularly to an energy-saving DC motor. Background Art

[0002] A DC motor is a common type of electric motor that converts DC electrical energy into mechanical energy to achieve rotational motion. DC motors are widely used in industries, transportation, household appliances and other fields. Their characteristics such as simplicity, strong controllability, and large starting torque make them still an important type of electric motor to this day.

[0003] In the prior art, a patent document with the publication number CN116865499B discloses an energy-saving DC motor, including a motor main body and a rotating shaft rotatably arranged at the center of the motor main body. A rotating unit is installed on the surface of the rotating shaft, and further includes: an energy-saving processing unit, which is arranged inside the motor main body. The energy-saving processing unit includes a mounting seat, and a rotating shaft is fixedly sleeved at the center of the mounting seat. A plurality of commutators are installed on the top of the mounting seat, and a driving gear is sleeved and installed on the surface of the rotating shaft. The above-mentioned motor realizes the cleaning of carbon powder worn between the carbon brush and the commutator, and the blown air will specifically reduce the temperature between the carbon brush and the commutator, thereby reducing the wear of the carbon brush at high temperature, and thus reducing the aggravation of the motor energy consumption caused by the wear between the carbon brush and the commutator. However, the above DC motor has the following technical problems when in use:

[0004] 1. The dust filter net needs to be disassembled and cleaned regularly, resulting in an increase in downtime and making it inconvenient to realize the self-cleaning and self-vibrating dust removal of the air intake and dust filtering structure of the DC motor;

[0005] 2. It is impossible to synchronously realize the dust filtering, air cooling and water cooling functions of the motor by using the output speed of the motor;

[0006] 3. The air cooling and water cooling structures of the motor cannot operate synchronously through the speed output of the motor, resulting in the ineffective reduction of the heat loss of the motor and the weak energy-saving performance of the motor;

[0007] Based on this, we propose an energy-saving DC motor. Summary of the Invention

[0008] The object of the present invention is to solve the disadvantages existing in the background art, and to propose an energy-saving DC motor.

[0009] To achieve the above object, the technical solution adopted by the present invention is as follows: An energy-saving DC motor includes a motor housing. A rotor assembly is provided inside the motor housing. A linkage vibration mechanism is provided inside the motor housing. A dust filter frame that can rotate and vibrate synchronously is drivingly connected to the linkage vibration mechanism. An air inlet shaft cylinder that supplies air into the motor housing is fixedly communicated with the dust filter frame. A toothed cylinder that rotates coaxially and in the opposite direction to the air inlet shaft cylinder is sleeved on the air inlet shaft cylinder. A front toothed ring and a rear toothed ring are respectively installed on the toothed cylinder. A rotatable cotton filter belt is installed inside the dust filter frame. A tensioning and cleaning member for tensioning and cleaning the cotton filter belt is provided inside the dust filter frame. Two rotatable dust shaking shafts are rotatably installed inside the dust filter frame. Dust shaking convex rollers that are in contact with the cotton filter belt are installed on both of the two dust shaking shafts. A rotary cooling member is sleeved on the rotor assembly. A water cooling cavity is provided inside the motor housing. A circulating cooling mechanism is installed at the bottom of the motor housing.

[0010] Preferably, the linkage vibration mechanism includes a reciprocating frame slidably connected inside the motor housing and an inner frame installed inside the motor housing. A square section is provided at the tail of the motor shaft. The square section is rotatably installed on the inner frame. A straight shaft is rotatably installed on the inner frame. First bevel gears are installed on both the straight shaft and the square section. The two first bevel gears mesh with each other. A cam is installed on the straight shaft. A limiting wheel that is in contact with the cam is installed on the reciprocating frame. A return spring is installed between the dust filter frame and the motor housing. A square groove with an open end at the tail and slidably connected to the square section is fixedly opened inside the air inlet shaft cylinder. The cross-sections of the square section and the square groove are both regular polygons.

[0011] Preferably, the linkage vibration mechanism further includes a steering shaft rotatably connected to the reciprocating frame. A steering bevel gear is installed on the steering shaft. A bevel gear ring is fixedly installed on both the air inlet shaft cylinder and the toothed cylinder. The two bevel gear rings are both drivingly connected to the steering bevel gear. The two bevel gear rings are respectively arranged on both sides of the steering bevel gear.

[0012] Preferably, the tensioning and cleaning member includes two brush shafts rotatably installed on the dust filter frame. Rear gears are fixedly installed at the tails of the two brush shafts. The two rear gears are both drivingly connected to the rear toothed ring. Spiral brush hairs that are in contact with the cotton filter belt are installed on both of the two brush shafts. The two brush shafts are both arranged outside the cotton filter belt. Four tensioning frames are slidably installed on the dust filter frame. Tensioning rollers that are drivingly connected to the cotton filter belt are rotatably installed on the four tensioning frames. Tensioning springs limited by the dust filter frame are installed on the sides of the four tensioning frames.

[0013] Preferably, a front gear drivingly connected to the front toothed ring is fixedly installed at the tail end of the dust shaking shaft.

[0014] Preferably, it further includes four guide rollers rotatably connected to the dust filter frame. All four of the guide rollers are drivingly connected to the cotton filter belt. There is a first belt drivingly connecting one of the guide rollers and one of the brush shafts.

[0015] Preferably, the rotary cooling radiator includes a large fan cylinder sleeved on the rotor assembly. An air inlet arc surface and an air outlet mesh surface are respectively arranged on the motor housing. The large fan cylinder is fixedly sleeved on the motor shaft. There is a heat conduction ring channel between the large fan cylinder and the motor housing. The heat conduction ring channel is arranged between the air inlet arc surface and the air outlet mesh surface. A group of drum fan blades is installed on the motor shaft at a position corresponding to between the dust filter frame and the large fan cylinder. A group of heat dissipation outer strip holes communicating with the heat conduction ring channel are opened on the large fan cylinder. A group of first fan blades is installed on the large fan cylinder at a position corresponding to the inner side of the air outlet mesh surface. A group of air guiding holes is opened on the air inlet shaft cylinder at a position corresponding to the rear side of the drum fan blades.

[0016] Preferably, the circulating cooling mechanism is installed on a chassis at the bottom of the motor housing. A heat dissipation cylinder is fixedly installed on the chassis. The top of the heat dissipation cylinder communicates with two branch pipes. The other ends of the two branch pipes are both communicated with the water cooling cavity. A pump shaft is rotatably installed in the heat dissipation cylinder. A spiral pump blade that fits the heat dissipation cylinder is installed on the pump shaft. A small fan cylinder is rotatably sleeved on the outside of the heat dissipation cylinder. A group of heat dissipation inner strip holes is opened on the small fan cylinder. A group of second fan blades is installed on the small fan cylinder. Both the pump shaft and the small fan cylinder are driven by the motor shaft.

[0017] Preferably, a bottom shaft is rotatably installed on the chassis. The bottom shaft is drivingly connected to the motor shaft through a second belt. First gears are installed on both the bottom shaft and the pump shaft. The two first gears mesh with each other. Second gears are installed on both the small fan cylinder and the bottom shaft. The two second gears mesh with each other.

[0018] Preferably, an electric control box is installed on the motor housing. A dust collection box is communicated with the bottom of the motor housing at a position directly below the air inlet arc surface. The air inlet arc surface and the air outlet mesh surface are both evenly distributed with mesh holes. The cotton filter belt is made of cotton material. The total radian value of the central angle corresponding to the air inlet arc surface is 200°.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When this motor operates, it can drive a vibration mechanism to realize the rotation and vibration of the dust filter rack. Combined with the tensioning, cleaning, and dust shaking structures of the cotton filter belt, it improves the air intake dust filtering effect of the DC motor and realizes the self-cleaning, dust shaking, and ash removal of the motor air intake dust filtering structure. At the same time, when this DC motor operates, the rotary cooling component and the circulating cooling mechanism work together, enabling this device to synchronously realize air intake dust filtering and motor ventilation and heat dissipation by using the output speed of the motor shaft. Subsequently, it effectively improves the mechanical linkage of this motor and effectively reduces the motor temperature. By maintaining the low temperature of the motor, it further effectively reduces the heat loss during the operation of this DC motor, thereby improving the energy-saving performance of this DC motor during operation;

[0021] 2. When this invention operates, the heat dissipation and dust filtering functions are integrated into one, and the self-cleaning of the ventilation and dust filtering structure is realized, effectively solving the problem that traditional motors need to regularly stop the motor to disassemble the dust filter net and clean the dust filter net, thereby significantly improving the operation efficiency of the DC motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of an energy-saving DC motor of this invention;

[0023] Figure 2 is this invention Figure 1 sectional structural diagram;

[0024] Figure 3 is this invention Figure 2 local enlarged structural diagram at A in;

[0025] Figure 4 is this invention Figure 2 local enlarged structural diagram at B in;

[0026] Figure 5 is the structural diagram of the motor shaft and the large fan cylinder of this invention;

[0027] Figure 6 is the structural diagram of the cotton filter belt and the spiral brush bristles of this invention;

[0028] Figure 7 is the structural diagram of the inner frame and the reciprocating frame of this invention;

[0029] Figure 8 is the structural diagram of the steering shaft and the air intake shaft cylinder of this invention;

[0030] Figure 9 is the sectional structural diagram of the guide roller and the spiral brush bristles of this invention;

[0031] Figure 10 is the structural diagram of the heat dissipation inner strip holes and the second fan blades of this invention.

[0032] 1. Motor housing; 2. Rotor assembly; 3. Motor shaft; 4. Air inlet arc surface; 5. Air outlet mesh surface; 6. Dust filter frame; 7. Air inlet shaft cylinder; 8. Gear cylinder; 9. Front gear ring; 10. Rear gear ring; 11. Cotton filter belt; 12. Ash shaking shaft; 13. Ash shaking roller; 14. Water cooling chamber; 15. Reciprocating frame; 16. Inner frame; 17. Square section; 18. Ash collecting box; 19. Straight shaft; 20. Cam; 21. Limiting wheel; 22. Reset spring; 23. Steering shaft; 24. Brush shaft; 25. Rear gear; 26. Screw Rotating bristles; 27, tensioning frame; 28, tensioning roller; 29, tensioning spring; 30, front gear; 31, guide roller; 32, large fan tube; 33, heat conduction loop; 34, blower blade; 35, heat dissipation outer strip hole; 36, first fan blade; 37, air inlet hole; 38, bottom frame; 39, heat dissipation tube; 40, branch pipe; 41, pump shaft; 42, spiral pump blade; 43, small fan tube; 44, heat dissipation inner strip hole; 45, second fan blade; 46, bottom shaft; 47, first gear; 48, second gear; 49, electric control box. DETAILED DESCRIPTION

[0033] The following description is intended to disclose the invention so that those skilled in the art can implement the invention. 34 Obvious Variations

[0034] like Figures 1 - 10 An energy-saving DC motor shown includes a motor housing 1, a rotor assembly 2 is arranged in the motor housing 1, and a rotatable motor shaft 3 is arranged on the rotor assembly 2;

[0035] The rotor assembly 2 includes a rotor mounted on the motor shaft 3 and a stator mounted in the motor housing 1;

[0036] The rotor is wound with a coil, and the rotor assembly 2 is a common module in the existing DC motor, which will not be described here;

[0037] The motor housing 1 is provided with an air inlet arc surface 4 and an air outlet mesh surface 5;

[0038] The air inlet arc surface 4 and the air outlet mesh surface 5 are evenly distributed with mesh holes;

[0039] The sum of the arc values ​​of the central angles corresponding to the air inlet arc surface 4 is 200°;

[0040] A linkage vibration mechanism is provided in the motor housing 1, and a dust filter frame 6 which can rotate and vibrate synchronously is connected to the linkage vibration mechanism. An air inlet shaft cylinder 7 for supplying air to the motor housing 1 is fixedly connected to the dust filter frame 6, and a gear cylinder 8 which rotates coaxially and in the opposite direction to the air inlet shaft cylinder 7 is sleeved on the air inlet shaft cylinder 7;

[0041] The linkage vibration mechanism includes a reciprocating frame 15 slidably connected to the motor housing 1 and an inner frame 16 installed in the motor housing 1. The tail of the motor shaft 3 is provided with a square section 17, and the square section 17 is rotatably installed on the inner frame 16. A straight shaft 19 is rotatably installed on the inner frame 16. First bevel gears are installed on both the straight shaft 19 and the square section 17, and the two first bevel gears mesh with each other;

[0042] A cam 20 is installed on the straight shaft 19, and a limit wheel 21 that fits with the cam 20 is installed on the reciprocating frame 15. A return spring 22 is installed between the dust filter frame 6 and the motor housing 1. An inner square groove with a tail end opening and slidably connected to the square section 17 is fixedly opened inside the air inlet shaft cylinder 7. The cross-sections of the square section 17 and the square groove are both regular polygons;

[0043] Through the setting of the linkage vibration mechanism, after the motor shaft 3 outputs a rotational speed, the dust filter frame 6 can rotate and vibrate synchronously;

[0044] When the motor shaft 3 rotates, the square section 17 at its tail rotates accordingly. Since the square section 17 is rotatably installed on the inner frame 16, and the straight shaft 19 on the inner frame 16 meshes with the square section 17 through the first bevel gear, the rotation of the square section 17 drives the straight shaft 19 to rotate. The cam 20 on the straight shaft 19 rotates accordingly. During the rotation of the cam 20, its edge continuously presses the limit wheel 21 connected to the reciprocating frame 15, causing the reciprocating frame 15 to perform a reciprocating linear motion within the motor housing 1;

[0045] At the same time, the air inlet shaft cylinder 7 is slidably connected to the square section 17 through the inner square groove. When the square section 17 rotates, the air inlet shaft cylinder 7 also rotates accordingly, thereby driving the dust filter frame 6 to rotate. Due to the reciprocating motion of the reciprocating frame 15, through the action of the return spring 22, the dust filter frame 6 generates vibration while rotating;

[0046] The dust filter frame 6 rotates and vibrates synchronously. On the one hand, rotation enables the cotton filter belt 11 on the dust filter frame 6 to perform a cyclic revolution motion, continuously changing the air inlet angle, and using centrifugal force to reduce the adhesion degree of the cotton filter belt 11; on the other hand, vibration can reduce the duration of point contact between dust and the cotton filter belt 11, reduce the adhesion and accumulation rate of impurities in the heat dissipation air flow on the cotton filter belt 11, and improve the dust filtering effect;

[0047] During the operation of a traditional DC motor, if the dust filtering device is fixed, the dust filtering components are prone to being blocked due to dust accumulation, affecting the ventilation and heat dissipation effect. This linkage vibration mechanism solves the problems that it is difficult for the dust filtering device to continuously and efficiently filter dust during operation, and prevents the dust filtering performance from declining due to a large amount of dust accumulation;

[0048] The linkage vibration mechanism further includes a steering shaft 23 rotatably connected to the reciprocating frame 15. A steering bevel gear is installed on the steering shaft 23. A bevel gear ring is fixedly installed on both the air inlet shaft cylinder 7 and the gear cylinder 8. Both bevel gear rings are in transmission connection with the steering bevel gear, and the two bevel gear rings are respectively arranged on both sides of the steering bevel gear;

[0049] Through the arrangement of the steering shaft 23, the bevel gear rings and the steering bevel gear, the air inlet shaft cylinder 7 and the gear cylinder 8 can rotate coaxially in opposite directions;

[0050] A front gear ring 9 and a rear gear ring 10 are respectively installed on the gear cylinder 8. A rotatable cotton filter belt 11 is installed in the dust filter frame 6, and the cotton filter belt 11 is made of cotton;

[0051] A tensioning and cleaning member for tensioning and cleaning the cotton filter belt 11 is provided in the dust filter frame 6;

[0052] The tensioning and cleaning member includes two brush shafts 24 rotatably installed on the dust filter frame 6. A rear gear 25 is fixedly installed at the tail of both brush shafts 24, and both rear gears 25 are in transmission connection with the rear gear ring 10;

[0053] Spiral brush hairs 26 that fit the cotton filter belt 11 are installed on both brush shafts 24, and both brush shafts 24 are arranged on the outside of the cotton filter belt 11;

[0054] The spiral brush hairs 26 are fluff;

[0055] When the dust filter frame 6 rotates under the action of the linkage vibration mechanism, it drives the air inlet shaft cylinder 7 to rotate. The bevel gear ring on the air inlet shaft cylinder 7 rotates accordingly. Since the steering bevel gear on the steering shaft 23 is in transmission connection with the bevel gear ring on the air inlet shaft cylinder 7, the rotation of the air inlet shaft cylinder 7 drives the steering shaft 23 to rotate through the steering bevel gear. At the same time, the other side of the steering bevel gear is in transmission connection with the bevel gear ring on the gear cylinder 8, so that the gear cylinder 8 rotates coaxially in the opposite direction to the air inlet shaft cylinder 7;

[0056] The coaxial reverse rotation of the air inlet shaft cylinder 7 and the gear cylinder 8 provides a power basis for the realization of a series of subsequent functions;

[0057] For example, this reverse rotation drives the related front gear ring 9 and rear gear ring 10 to rotate, and further drives the components such as the tensioning and cleaning and ash shaking of the cotton filter belt 11 to work, realizing the coordinated operation of multiple functions;

[0058] Through the above structure, the problem of how to provide reverse rotation power for different components under the rotation system of the same dust filter frame 6 is solved. It realizes driving multiple components to complete different-direction movements by using a single motor shaft power source in a limited space, optimizing the structure and power transmission mode of the equipment;

[0059] Four tensioning frames 27 are slidably mounted on the dust filter frame 6, and a tensioning roller 28 drivingly connected to the cotton filter belt 11 is rotatably mounted on each of the four tensioning frames 27. Tensioning springs 29 limited by the dust filter frame 6 are mounted on the sides of the four tensioning frames 27;

[0060] Through the arrangement of the spiral brush bristles 26, impurities on the cotton filter belt 11 are brushed off. Through the arrangement of the tensioning frames 27 and the tensioning rollers 28, the cotton filter belt 11 is kept in a tensioned state during operation;

[0061] Two rotatable dust shaking shafts 12 are rotatably mounted inside the dust filter frame 6;

[0062] A front gear 30 drivingly connected to the front gear ring 9 is fixedly mounted at the tail end of the dust shaking shaft 12;

[0063] Dust shaking convex rollers 13 in contact with the cotton filter belt 11 are mounted on both of the two dust shaking shafts 12;

[0064] After the motor shaft 3 outputs a rotational speed, the dust shaking shaft 12 rotates at a set speed. After the dust shaking shaft 12 rotates, through the arrangement of the dust shaking convex rollers 13, the cotton filter belt 11 undergoes reciprocating deformation during operation. Through the reciprocating deformation of the cotton filter belt 11, the cotton filter belt 11 is made to be in a shaking state. After the cotton filter belt 11 is in a shaking state, the dust and impurities adhered to the cotton filter belt 11 are vibrated and shaken off;

[0065] When the tooth cylinder 8 rotates, the rear gear ring 10 thereon rotates accordingly. The rear gear ring 10 is drivingly connected to the rear gears 25 at the tails of the two brush shafts 24, driving the brush shafts 24 to rotate. The spiral brush bristles 26 on the brush shafts 24 also rotate accordingly to brush the surface of the cotton filter belt 11, thereby brushing off impurities on the cotton filter belt 11;

[0066] During the operation of the cotton filter belt 11, the tensioning rollers 28 on the four tensioning frames 27 are drivingly connected to the cotton filter belt 11. Under the action of the tensioning springs 29, the tensioning frames 27 always apply an outward pulling force to the cotton filter belt 11 to keep the cotton filter belt 11 in a tensioned state.

[0067] Through the above structural arrangement, the spiral brush bristles 26 can more comprehensively and effectively brush off the impurities adhered to the surface of the cotton filter belt 11, improving the self-cleaning ability of the cotton filter belt 11. The tensioning frames 27 and the tensioning rollers 28 ensure that the cotton filter belt 11 is always in a tensioned state, so that the cotton filter belt 11 will not become loose or wrinkled during operation, ensuring the stable dust filtering effect of the cotton filter belt 11. At the same time, it is also beneficial for the spiral brush bristles 26 to evenly brush the cotton filter belt 11.

[0068] It solves the problems that the dust filtration efficiency of the cotton filter belt 11 decreases due to the accumulation of impurities during long-term use, and the slack of the cotton filter belt 11 affects the dust filtration effect and self-cleaning effect, extends the service life of the cotton filter belt 11, and improves the overall operation stability of the equipment;

[0069] An electric control box 49 is installed on the motor housing 1, and a dust collection box 18 is communicated at the bottom of the motor housing 1 and corresponding to the position directly below the air inlet arc surface 4;

[0070] The dust shaken off from the cotton filter belt 11 is collected through the dust collection box 18;

[0071] When the motor shaft 3 rotates, through a series of transmission structures (such as being driven by a second belt with the bottom shaft 46, and the bottom shaft 46 meshing with the pump shaft 41 through the first gear 47, etc.), the toothed cylinder 8 is driven to rotate, and the front gear ring 9 on the toothed cylinder 8 rotates accordingly. The front gear ring 9 is in transmission connection with the front gear 30 at the tail end of the dust shaking shaft 12, so that the dust shaking shaft 12 rotates at a set speed. The dust shaking convex rollers 13 on the dust shaking shaft 12 rotate along with the dust shaking shaft 12. During the rotation process, the dust shaking convex rollers 13 continuously squeeze the cotton filter belt 11, causing the cotton filter belt 11 to generate reciprocating deformation, thereby forming a shaking state, and shaking off the dust adhering to the cotton filter belt 11.

[0072] Utilizing the power of the motor shaft 3, the dust shaking shaft 12 is rotated through indirect transmission, and the squeezing and shaking of the dust shaking convex rollers 13 on the cotton filter belt 11 can efficiently shake off the dust on the cotton filter belt 11, further enhancing the self-cleaning ability of the cotton filter belt 11, improving the working efficiency of the dust filtration device, and ensuring a good ventilation and heat dissipation environment during the operation of the motor.

[0073] It solves the problem that it is difficult to completely remove the impurities on the cotton filter belt 11. Especially for some impurities that adhere tightly, simply relying on the spiral brush bristles 26 to brush may not be able to clean them completely;

[0074] Through the method of vibrating and shaking off dust, these stubborn impurities can be removed, maintaining the good dust filtration performance of the cotton filter belt 11;

[0075] When the cotton filter belt 11 shakes under the action of the dust shaking shaft 12 and the dust shaking convex rollers 13 and shakes off the dust, due to the dust collection box 18 being arranged directly below the air inlet arc surface 4, under the action of gravity, the dust naturally falls into the dust collection box 18. The electric control box 49 is used to control the operating parameters of the motor and related components, such as the rotation speed of the motor shaft 3, etc., indirectly affecting the working state of the entire dust filtration and heat dissipation system.

[0076] The setting of the dust collection box 18 realizes the centralized collection of the shaken-off dust, avoids the dust floating around in the motor housing 1 and polluting the internal environment of the motor again, and is also convenient for cleaning the dust later;

[0077] The electric control box 49 can accurately control the operation of the motor and related components to ensure efficient and stable operation of the entire system.

[0078] It solves the problem of no effective way to collect the dust that falls off, which easily causes secondary pollution. It also provides a way to accurately control the motor and related components, improving the overall reliability and maintenance convenience of the equipment.

[0079] It also includes four guide rollers 31 rotatably connected to the dust filter frame 6, the four guide rollers 31 are all connected to the cotton filter belt 11 by transmission, and a first belt is connected between a guide roller 31 and a brush shaft 24 by transmission;

[0080] When the dust filter frame 6 revolves, the cotton filter belt 11 spins at a set speed relative to the dust filter frame 6. After the cotton filter belt 11 spins, the two spiral bristles 26 can achieve cyclic cleaning of the surface of the cotton filter belt 11.

[0081] The rotor assembly 2 is provided with a rotary cooling heat sink;

[0082] The rotary cooling heat sink comprises a large fan tube 32 sleeved on the rotor assembly 2, the large fan tube 32 is fixedly sleeved on the motor shaft 3, a heat conduction ring 33 is provided between the large fan tube 32 and the motor housing 1, and the heat conduction ring 33 is provided between the air inlet arc surface 4 and the air outlet mesh surface 5;

[0083] A group of blower blades 34 are installed on the motor shaft 3 and correspond to the position between the dust filter frame 6 and the large fan cylinder 32. A group of heat dissipation outer strip holes 35 connected to the heat conduction loop 33 are opened on the large fan cylinder 32. A group of first blades 36 are installed on the large fan cylinder 32 and correspond to the position inside the air outlet mesh surface 5. A group of air induction holes 37 are opened on the air inlet shaft cylinder 7 and correspond to the position behind the blower blades 34.

[0084] The circulating cooling mechanism is installed on the base frame 38 at the bottom of the motor housing 1, and a heat sink 39 is fixedly installed on the base frame 38. The top of the heat sink 39 is connected to two branch pipes 40, and the other ends of the two branch pipes 40 are connected to the water cooling chamber 14. A pump shaft 41 is rotatably installed in the heat sink 39, and a spiral pump blade 42 that fits the heat sink 39 is installed on the pump shaft 41. A small fan cylinder 43 is rotatably sleeved on the outer side of the heat sink 39, and a group of heat dissipation inner strip holes 44 are opened on the small fan cylinder 43. A group of second fan blades 45 are installed on the small fan cylinder 43. The pump shaft 41 and the small fan cylinder 43 are both driven by the motor shaft 3.

[0085] When the motor shaft 3 rotates, the large fan cylinder 32 fixedly mounted on the motor shaft 3 rotates at a set speed, and the blower blades 34 are mounted on the motor shaft 3 and located between the dust filter frame 6 and the large fan cylinder 32. As the motor shaft 3 rotates, the blower blades 34 introduce external air through the air inlet holes 37 on the air inlet shaft cylinder 7;

[0086] When the large fan tube 32 rotates, the air inside it enters the heat conduction ring 33 through the heat dissipation outer strip holes 35 under the action of centrifugal force;

[0087] At the same time, the first fan blade 36 on the large fan tube 32 corresponding to the inner side of the air outlet mesh surface 5 rotates to discharge the hot air in the heat conduction loop 33 through the air outlet mesh surface 5, thereby realizing the external discharge of the heat generated by the rotor assembly 2;

[0088] A bottom shaft 46 is rotatably mounted on the bottom frame 38, and the bottom shaft 46 is transmission-connected to the motor shaft 3 via a second belt. A first gear 47 is mounted on the bottom shaft 46 and the pump shaft 41, and the two first gears 47 are meshed with each other. A second gear 48 is mounted on the small fan cylinder 43 and the bottom shaft 46, and the two second gears 48 are meshed with each other.

[0089] After the motor shaft 3 outputs the speed, the water-cooling liquid circulates in the water-cooling chamber 14 and realizes the circulating refrigeration of the water-cooling liquid to maintain the low temperature state of the water-cooling liquid in the water-cooling chamber 14;

[0090] When the motor shaft 3 rotates, the bottom shaft 46 on the bottom frame 38 is driven to rotate through the second belt. The bottom shaft 46 and the pump shaft 41 are both equipped with a first gear 47. The two first gears 47 mesh with each other, so that the pump shaft 41 rotates, and the spiral pump blades 42 on the pump shaft 41 rotate in the heat dissipation cylinder 39, and the water-cooling liquid in the heat dissipation cylinder 39 is pumped into the water-cooling chamber 14 through the branch pipe 40, so as to realize the circulation of the water-cooling liquid. At the same time, the bottom shaft 46 and the small fan cylinder 43 are both equipped with a second gear 48. The two second gears 48 mesh with each other, so as to drive the small fan cylinder 43 to rotate.

[0091] The second fan blade 45 on the small fan tube 43 rotates to introduce external air into the heat dissipation tube 39, and the water-cooling liquid in the heat dissipation tube 39 is cooled and refrigerated through the heat dissipation inner strip holes 44, thereby maintaining the low temperature state of the water-cooling liquid in the water-cooling chamber 14;

[0092] The power of the motor shaft 3 is used to realize the circulation and refrigeration of the water-cooling liquid, which effectively reduces the temperature inside the motor housing 1 and further improves the heat dissipation effect of the motor;

[0093] Compared with pure air cooling, the combination of water cooling and air cooling can more efficiently control the motor temperature, ensuring that the motor can work stably even under high load, greatly improving the performance and reliability of the motor;

[0094] It solves the problem that during the operation of the motor, especially under high load conditions, air cooling alone cannot meet the heat dissipation requirements of the motor, resulting in excessively high motor temperature and affecting performance and life, and provides a more powerful and stable heat dissipation guarantee for the motor;

[0095] The working principle of the present invention is as follows: When the DC motor operates, the motor shaft 3 rotates in a set state. After the motor shaft 3 outputs the rotational speed, the water-cooling liquid circulates in the water-cooling cavity 14 and realizes the circulating refrigeration of the water-cooling liquid to maintain the low temperature state of the water-cooling liquid in the water-cooling cavity 14. The large fan cylinder 32 rotates at a set speed. After the large fan cylinder 32 rotates, through the settings of the heat dissipation outer strip holes 35, the drum fan blades 34 and the first fan blades 36, the heat generated by the rotor assembly 2 is discharged to the outside. After the motor shaft 3 outputs the rotational speed, the dust shaking shaft 12 rotates at a set speed. After the dust shaking shaft 12 rotates, through the setting of the dust shaking convex rollers 13, the cotton filter belt 11 undergoes reciprocating deformation during operation. Through the reciprocating deformation of the cotton filter belt 11, the cotton filter belt 11 is formed into a shaking state. After the cotton filter belt 11 is formed into a shaking state, the dust adhered to the cotton filter belt 11 is vibrated and shaken off. Through the setting of the spiral bristles 26, the impurities on the cotton filter belt 11 are brushed off. Through the settings of the tensioning frame 27 and the tensioning rollers 28, the cotton filter belt 11 is kept in a tensioned state during operation. Through the setting of the linkage vibration mechanism, after the motor shaft 3 outputs the rotational speed, the dust filtering frame 6 can rotate and vibrate synchronously. After the dust filtering frame 6 rotates and vibrates synchronously, the cotton filter belt 11 performs circular revolution motion and circular left-right vibration. Through the circular revolution motion of the cotton filter belt 11, the air inlet angle of the cotton filter belt 11 is circularly changed and the centrifugal force of the cotton filter belt 11 is generated to reduce the adhesion degree of the cotton filter belt 11. Through the left-right vibration of the cotton filter belt 11, the duration of the point contact between the dust and the cotton filter belt 11 is reduced, thereby reducing the adhesion and accumulation rate of the impurities in the heat dissipation air flow on the cotton filter belt 11. When the motor shaft 3 stops outputting, under the action of gravity, the dust on the cotton filter belt 11 automatically falls off into the dust collection box 18.

[0096] The above has shown and described the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving DC motor, comprising a motor housing, wherein a rotor assembly is arranged in the motor housing, characterized in that: A linkage vibration mechanism is provided in the motor casing, and a dust filter frame that can rotate and vibrate synchronously is transmission-connected to the linkage vibration mechanism, and an air inlet shaft cylinder that supplies air to the motor casing is fixedly connected to the dust filter frame, and a rotatable cotton filter belt is installed in the dust filter frame, and a tensioning and cleaning brush member for tensioning and cleaning the cotton filter belt is provided in the dust filter frame, and two rotatable ash shaking shafts are rotatably installed in the dust filter frame, and ash shaking convex rollers that fit the cotton filter belts are installed on the two ash shaking shafts, a rotary cooling heat sink is sleeved on the rotor assembly, a water cooling chamber is provided in the motor casing, and a circulating cooling mechanism is installed at the bottom of the motor casing.

2. An energy-saving DC motor according to claim 1, characterized in that: The linkage vibration mechanism includes a reciprocating frame slidably connected to the motor housing and an inner frame installed in the motor housing, the rotor assembly is provided with a rotatable motor shaft, the air inlet shaft cylinder is sleeved with a gear cylinder that rotates coaxially and counteraxially with the air inlet shaft cylinder, and the gear cylinder is respectively provided with a front gear ring and a rear gear ring, a square section is provided at the tail of the motor shaft, the square section is rotatably installed on the inner frame, a straight shaft is rotatably installed on the inner frame, a first bevel gear is installed on the straight shaft and the square section, the two first bevel gears are meshed with each other, a cam is installed on the straight shaft, a limiting wheel that fits with the cam is installed on the reciprocating frame, a return spring is installed between the dust filter frame and the motor housing, a square groove with an opening at the tail end and slidably connected to the square section is fixedly opened inside the air inlet shaft cylinder, and the cross-sections of the square section and the square groove are both regular polygons.

3. An energy-saving DC motor according to claim 2, characterized in that: The linkage vibration mechanism also includes a steering shaft rotatably connected to the reciprocating frame, a steering bevel gear is installed on the steering shaft, a bevel gear ring is fixedly installed on the air inlet shaft cylinder and the gear cylinder, the two bevel gear rings are both transmission-connected to the steering bevel gear, and the two bevel gear rings are respectively arranged on both sides of the steering bevel gear.

4. The energy-saving DC motor according to claim 1, characterized in that: The tensioning brush cleaning member includes two brush shafts rotatably mounted on the dust filter frame, a rear gear is fixedly mounted on the tail of the two brush shafts, the two rear gears are transmission connected to the rear gear ring, spiral bristles that fit the cotton filter belt are mounted on the two brush shafts, the two brush shafts are arranged on the outside of the cotton filter belt, four tensioning frames are slidably mounted on the dust filter frame, a tensioning roller transmission-connected to the cotton filter belt is rotatably mounted on the four tensioning frames, and tensioning springs that are limited by the dust filter frame are mounted on the sides of the four tensioning frames.

5. The energy-saving DC motor according to claim 1, characterized in that: A front gear which is transmission-connected to the front gear ring is fixedly mounted on the tail end of the ash-shaking shaft.

6. The energy-saving DC motor according to claim 4, characterized in that: It also includes four guide rollers which are rotatably connected to the dust filter frame. The four guide rollers are all transmission-connected to the cotton filter belts. A first belt is transmission-connected between one of the guide rollers and one of the brush shafts.

7. The energy-saving DC motor according to claim 1, characterized in that: The rotary cooling heat dissipation component includes a large fan cylinder mounted on the rotor assembly, an air inlet arc surface and an air outlet mesh surface are respectively provided on the motor housing, the large fan cylinder is fixedly mounted on the motor shaft, a heat conduction loop is provided between the large fan cylinder and the motor housing, the heat conduction loop is arranged between the air inlet arc surface and the air outlet mesh surface, a group of blower blades are installed on the motor shaft at a position corresponding to the position between the dust filter frame and the large fan cylinder, a group of heat dissipation outer strip holes connected with the heat conduction loop are opened on the large fan cylinder, a group of first fan blades are installed on the large fan cylinder at a position corresponding to the inner side of the air outlet mesh surface, and a group of air induction holes are opened on the air inlet shaft cylinder at a position corresponding to the rear side of the blower blades.

8. The energy-saving DC motor according to claim 1, characterized in that: The circulating cooling mechanism is installed on a base frame at the bottom of the motor housing, a heat sink is fixedly installed on the base frame, the top of the heat sink is connected to two branch pipes, the other ends of the two branch pipes are connected to the water cooling chamber, a pump shaft is rotatably installed in the heat sink, a spiral pump blade that fits the heat sink is installed on the pump shaft, a small fan cylinder is rotatably sleeved on the outer side of the heat sink, a group of heat dissipation inner strip holes are opened on the small fan cylinder, a group of second fan blades are installed on the small fan cylinder, and the pump shaft and the small fan cylinder are both driven by the motor shaft.

9. An energy-saving DC motor according to claim 8, characterized in that: A bottom shaft is rotatably mounted on the base frame, and the bottom shaft is transmission-connected to the motor shaft via a second belt. A first gear is mounted on both the bottom shaft and the pump shaft, and the two first gears are meshed with each other. A second gear is mounted on both the small fan tube and the bottom shaft, and the two second gears are meshed with each other.

10. The energy-saving DC motor according to claim 7, characterized in that: An electric control box is installed on the motor housing, and a dust collecting box is connected to the bottom of the motor housing and the position directly below the air inlet arc surface. The air inlet arc surface and the air outlet mesh surface are evenly distributed with mesh holes. The cotton filter belt is made of cotton material, and the total radian value of the central angle corresponding to the air inlet arc surface is 200°.

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