Wear-resistant high-load small brush motor

Abstract

The application discloses a wear-resistant high-load small brush motor, and relates to the field of brush motors, which comprises a shell, a rear cover fixed on the shell, bearings fixed on the shell and the rear cover, a rotating shaft rotationally connected between the two bearings, a rotor fixed on the rotating shaft, a stator fixed in the shell, a heat dissipation mechanism arranged on the rear cover, a turbulence mechanism arranged on the shell, a commutator fixed on the rotating shaft, and two symmetrical carbon brushes fixed on the rear cover. When the rotor drives the rotating shaft to rotate on the bearings, the rotating shaft drives the heat dissipation mechanism to dissipate heat in the shell, and the heat dissipation mechanism drives the turbulence mechanism to increase the heat dissipation effect of the heat dissipation mechanism, so that the brush motor can reduce the possibility of heat generated by high-load rotation to accumulate in the shell during work, reduce the possibility of high temperature affecting the normal work of the brush motor, and further improve the service life of the brush motor.

Description

TECHNICAL FIELD

[0001] The application relates to the field of brush motors, in particular to a wear-resistant high-load small brush motor. BACKGROUND

[0002] The brush motor is a rotating motor containing a brush device, which converts electrical energy into mechanical energy or converts mechanical energy into electrical energy. The brush motor is the basis of all motors, and has the characteristics of fast starting, timely braking, smooth speed regulation in a wide range, and relatively simple control circuit.

[0003] The brush motor is composed of a stator and a rotor. The stator has magnetic poles, and the rotor has windings. After being electrified, a magnetic field is formed on the rotor. There is an included angle between the magnetic poles of the stator and the rotor. Under the mutual attraction of the magnetic fields of the stator and the rotor, the motor rotates. By changing the position of the brush, the direction of the included angle of the magnetic poles of the stator and the rotor can be changed, thereby changing the rotating direction of the motor.

[0004] When the brush motor is working, the air gap between the stator and the rotor is small, which causes the stator and the rotor to collide, abnormal vibration or noise of the motor, high power supply voltage, increased excitation current, and various reasons such as motor open-phase movement. The brush motor generates heat during work. In order to reduce the influence of heat on the normal operation of the motor, a heat dissipation hole is generally formed on the shell of the motor or a shell with good heat dissipation material is used to dissipate heat from the motor. However, this heat dissipation method has limited heat dissipation effect and is difficult to dissipate heat from the motor. SUMMARY

[0005] The purpose of the present application is to solve the problem of heat dissipation in the background art. In order to reduce the influence of heat on the normal operation of the motor, a heat dissipation hole is generally formed on the shell of the motor or a shell with good heat dissipation material is used to dissipate heat from the motor. However, this heat dissipation method has limited heat dissipation effect and is difficult to dissipate heat from the motor. The present application provides a wear-resistant high-load small brush motor.

[0006] In order to achieve the above purpose, the application specifically adopts the following technical scheme:

[0007] The wear-resistant high-load small brush motor comprises a shell, a rear cover fixed on the shell, bearings fixed on the shell and the rear cover, a rotating shaft rotatably connected between the two bearings, a rotor fixed on the rotating shaft, a stator fixed in the shell, a heat dissipation mechanism arranged on the rear cover, a turbulence mechanism arranged on the shell, a commutator fixed on the rotating shaft, and two symmetrical carbon brushes fixed on the rear cover.

[0008] By adopting the technical scheme, the rotor core is made of high-quality cold-rolled silicon steel sheet, the magnetic permeability is ensured, and the weight is reduced, the stator winding is made of high-strength insulating enameled wire, the carbon brush is made of graphite copper composite material, the rear cover and the motor shell are made of aluminum alloy material, the stator winding is electrified, the magnetic field generated by the stator winding interacts with the magnetic field generated by the rotor to form a driving torque to drive the rotor to rotate, the cooperation of the commutator and the carbon brush realizes the continuous conversion of the current, so that the motor can continuously work at different phases, when the rotor drives the rotating shaft to rotate on the bearing, the rotating shaft drives the heat dissipation mechanism, the heat dissipation mechanism dissipates heat in the shell, and the heat dissipation mechanism drives the turbulence mechanism to increase the heat dissipation effect of the heat dissipation mechanism, so that the brush motor can reduce the possibility of heat accumulation in the shell caused by high-load rotation during work, reduce the possibility of high temperature affecting the normal work of the brush motor, and further improve the service life of the brush motor.

[0009] Further, the heat dissipation mechanism comprises a heat dissipation disc arranged on the rear cover, the heat dissipation disc is fixedly connected with the rotating shaft, and the heat dissipation disc is provided with uniformly distributed inclined air holes.

[0010] By adopting the technical scheme, the heat generated in the shell is dissipated through the heat dissipation holes on the shell and the rear cover, the rotating shaft drives the heat dissipation disc, the inclined air holes suck the heat dissipation holes on the rear cover, and the heat dissipation component is connected with the external water circulation device, so that the heat of the shell is transferred to the heat dissipation component, and then the external water circulation device takes away the heat of the heat dissipation component, thereby achieving efficient heat dissipation of the brush motor, reducing the possibility of heat accumulation in the shell of the brush motor, affecting the normal work of the brush motor, and improving the service life of the brush motor

[0011] Further, the heat dissipation component comprises two symmetrical heat dissipation cabins fixed on the shell, one side of the two heat dissipation cabins is provided with a water inlet pipe, the water inlet pipe is fixedly connected with the two heat dissipation cabins, the water inlet pipe is communicated with the two heat dissipation cabins, and the other side of the two heat dissipation cabins is provided with a water outlet pipe.

[0012] By adopting the technical scheme, the water inlet pipe and the water outlet pipe are connected with the external water circulation device, the water flows into the heat dissipation cabin from the water inlet pipe, the heat of the brush motor shell is transferred to the heat dissipation cabin, and the heat of the heat dissipation cabin is absorbed by the water in the heat dissipation cabin, thereby further cooling the brush motor shell and reducing the possibility of high heat generated by the brush motor.

[0013] Further, a plurality of heat dissipation plates are arranged in the heat dissipation cabin, the heat dissipation plates are fixedly connected with the heat dissipation cabin, and the heat dissipation plates penetrate through the heat dissipation cabin and extend into the shell.

[0014] By adopting the technical scheme, the shell transmits heat to the heat-conducting cabin, and then the heat-conducting cabin transmits heat to the heat-dissipating plate, and the water flow contacts the heat-dissipating plate when flowing through the heat-conducting cabin, so that the efficiency of transmitting heat in the shell to the water flow can be improved, and the heat-dissipating efficiency is further improved.

[0015] Further, the heat-dissipating plates are distributed in a staggered manner.

[0016] By adopting the technical scheme, when the heat-dissipating plate is fixed in the heat-conducting cabin, one end of the heat-dissipating plate abuts against the inner wall of the heat-conducting cabin, and the other end of the heat-dissipating plate is kept away from the heat-conducting cabin, so that the contact area of the water flow with the heat-conducting cabin can be increased, and the heat-dissipating efficiency is improved.

[0017] Further, the flow disturbing mechanism comprises a plurality of flow disturbing plates arranged in the heat-conducting cabin, the flow disturbing plates are arranged in a screw thread manner, both ends of each flow disturbing plate are fixed with a support block, the support block is rotatably connected with the heat-conducting cabin, and a synchronous assembly is arranged between one end of the heat-conducting cabin and the heat-dissipating plate.

[0018] By adopting the technical scheme, the shaft drives the heat-dissipating plate, then the heat-dissipating plate drives the synchronous assembly, the synchronous assembly drives a plurality of support blocks to rotate, and the support blocks drive the flow disturbing plates to rotate, so that the water flow flowing through the heat-conducting cabin can be stirred, the possibility of heat absorption stratification of the water flow flowing through the heat-conducting cabin can be reduced, the heat absorption of the water flow is more uniform, and the heat absorption efficiency is improved.

[0019] Further, the synchronous assembly comprises a plurality of rotating rods rotatably connected with the heat-conducting cabin, gears are fixed on the rotating rods, tooth grooves are uniformly arranged on the heat-dissipating plate, and the gears are engaged with the tooth grooves on the heat-dissipating plate.

[0020] By adopting the technical scheme, when the shaft drives the heat-dissipating plate to rotate, the tooth grooves on the heat-dissipating plate drive the gears, and then the gears drive the support blocks by the rotating rods, so that the support blocks drive the flow disturbing plates to rotate, and the flow disturbing plates can be conveniently rotated in the heat-conducting cabin to stir the water flow in the heat-conducting cabin.

[0021] Further, a protective cover is fixed on the heat-conducting cabin, and the protective cover corresponds to the rotating rods and the gears.

[0022] By adopting the technical scheme, the protective cover is arranged on the plurality of rotating rods and gears, so that the possibility that sundries affect the normal rotation of the gears and the rotating rods can be reduced.

[0023] In summary, the present application has at least one of the following beneficial effects.

[0024] 1、The application, by selecting the rotor core with high-quality cold-rolled silicon steel sheet, ensures the magnetic permeability while reducing the weight, the stator winding adopts high-strength insulating enamel wire, the carbon brush adopts graphite copper composite material, the rear cover and the motor shell are made of aluminum alloy material, which is light and firm, and has good heat dissipation performance, when the rotor drives the rotating shaft to rotate on the bearing, the rotating shaft drives the heat dissipation disc to rotate, when the heat dissipation disc rotates, the inclined wind tunnel on the heat dissipation disc rotates, the inclined wind tunnel generates suction on the heat dissipation hole on the rear cover, the heat in the shell is extracted from the heat dissipation hole on the rear cover, at the same time, the water inlet pipe and the water outlet pipe are connected with the water circulation device outside, the water flows into the heat conduction cabin from the water inlet pipe, then flows out of the heat conduction cabin from the water outlet pipe, when the brush motor works, the heat of the brush motor shell is transferred to the heat conduction cabin, the heat of the heat conduction cabin is absorbed by the water in the heat conduction cabin, then the water absorbing heat is discharged from the heat conduction cabin, realizing the cooling of the shell, achieving the purpose of enhancing the electrical performance and temperature resistance, maintaining good electrical conductivity and improving wear resistance, at the same time, it can reduce the possibility of heat accumulation in the shell caused by high load rotation when the brush motor works, reduce the possibility of high temperature affecting the normal work of the brush motor, further improve the service life of the brush motor.

[0025] 2、The application, by rotating the heat dissipation disc, the tooth groove on the heat dissipation disc drives the gear to rotate under the support of the rotating rod, then the gear drives the rotating rod to drive the support block to drive the spoiler to rotate, stirring the water flow, allowing the water flow to fully and uniformly absorb the heat of the heat conduction cabin when the water flow absorbs the heat from the heat conduction cabin, achieving the purpose of reducing the possibility of heat absorption stratification when the water flow flows through the heat conduction cabin, making the water flow absorption more uniform and improving the heat absorption efficiency.

[0026] 3、The application, by fixing the protective cover on the two heat dissipation cabins, the protective cover covers the rotating rods and gears to protect the rotating rods and gears, achieving the purpose of reducing the possibility of affecting the normal rotation of the gears and rotating rods by foreign matter. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the first three-dimensional structure schematic diagram of the brush motor in the application;

[0028] Figure 2 is the internal structure schematic diagram of the brush motor in the application;

[0029] Figure 3 is the disassembly structure schematic diagram of the brush motor in the application;

[0030] Figure 4 is the application Figure 2 enlarged schematic diagram of A;

[0031] Figure 5 is the application Figure 3 amplified schematic view in B.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1, the shell; 2, the back cover; 3, the stator; 4, the rotor; 5, the shaft; 6, the bearing; 7, the heat dissipation mechanism; 71, the heat dissipation hole; 72, the heat dissipation disc; 73, the heat conduction assembly; 731, the heat conduction cabin; 732, the water inlet pipe; 733, the water outlet pipe; 734, the heat dissipation plate; 74, the inclined wind tunnel; 8, the spoiler mechanism; 81, the support block; 82, the spoiler plate; 83, the synchronization assembly; 831, the rotating rod; 832, the gear; 833, the gear slot; 84, the protective cover; 9, the commutator; 10, the carbon brush. DETAILED DESCRIPTION

[0034] The application is further described in detail below in conjunction with the accompanying Figure 1 drawings.

[0035] The application discloses a wear-resistant high-load small brush motor.

[0036] Referring to Figure 1 , Figure 2 and Figure 3 , the wear-resistant high-load small brush motor comprises a shell 1, a back cover 2 is fixed on the shell 1, bearings 6 are fixed on the shell 1 and the back cover 2, a shaft 5 is rotationally connected between the two bearings 6, a rotor 4 is fixed on the shaft 5, a stator 3 is fixed in the shell 1, a heat dissipation mechanism 7 is arranged on the back cover 2, a spoiler mechanism 8 is arranged on the shell 1, a commutator 9 is fixed on the shaft 5, and two symmetrical carbon brushes 10 are fixed on the back cover 2.

[0037] In the production of the brush motor, the rotor 4 core is made of high-quality cold-rolled silicon steel sheet, which ensures the magnetic permeability while reducing the weight. The stator 3 winding uses high-strength insulating enameled wire, which enhances the electrical performance and temperature resistance. The carbon brush 10 uses graphite copper composite material, which maintains good electrical conductivity and improves wear resistance. The rear cover and motor shell are made of aluminum alloy material, which is light and strong, and has good heat dissipation performance. Then the corresponding shell 1, rear cover 2, stator 3, steering gear, bearing 6, shaft 5 and rotor 4 are assembled, and the heat dissipation mechanism 7 is installed on the shell 1 and the rear cover 2, and the heat dissipation mechanism 7 is installed in the shell 1. The spoiler mechanism 8 is installed in the heat dissipation mechanism 7. When the brush motor is in use, the stator 3 winding is energized to generate a magnetic field that interacts with the magnetic field generated by the rotor 4 to form a driving torque to rotate the rotor 4. The cooperation of the commutator 9 and the carbon brush 10 realizes the continuous conversion of the current, so that the motor can work continuously at different phases. When the rotor 4 drives the shaft 5 to rotate on the bearing 6, the shaft 5 drives the heat dissipation mechanism 7, which cools the shell 1, and the heat dissipation mechanism 7 drives the spoiler mechanism 8 to increase the heat dissipation effect of the heat dissipation mechanism 7. By installing the heat dissipation mechanism 7 on the shell 1 and the rear cover 2, when the rotor 4 drives the shaft 5 to rotate, the shaft 5 drives the heat dissipation mechanism 7, which cools the shell 1, and the heat dissipation mechanism 7 drives the spoiler mechanism 8 to further improve the heat dissipation effect of the heat dissipation mechanism 7, thereby enhancing the electrical performance and temperature resistance, maintaining good electrical conductivity and improving wear resistance. At the same time, when the brush motor is working, it reduces the possibility of heat accumulation in the shell 1 caused by high load rotation, reduces the possibility of high temperature affecting the normal work of the brush motor, and further improves the service life of the brush motor.

[0038] Referring to Figure 2 , Figure 3 and Figure 4 , the heat dissipation mechanism 7 includes a heat dissipation disc 72 arranged on the rear cover 2, the heat dissipation disc 72 is fixedly connected with the shaft 5, the heat dissipation disc 72 is provided with inclined air holes 74 which are uniformly distributed, the shell 1 is provided with a heat conduction assembly 73, and the rear cover 2 and the shell 1 are provided with heat dissipation holes 71 which are uniformly distributed.

[0039] When the brush motor is working, the rotor 4 drives the rotating shaft 5 to rotate under the support of the bearing 6, the heat generated in the shell 1 is dissipated from the heat dissipation holes 71 on the shell 1 and the rear cover 2, at the same time, the rotating shaft 5 drives the heat dissipation disc 72 to rotate, when the heat dissipation disc 72 rotates, the inclined wind tunnel 74 on the heat dissipation disc 72 rotates, the inclined wind tunnel 74 generates suction on the heat dissipation holes 71 on the rear cover 2, the heat in the shell 1 is sucked out from the heat dissipation holes 71 on the rear cover 2, at the same time, the heat dissipation assembly 73 is connected with the external water circulation device, the heat of the shell 1 is transferred to the heat dissipation assembly 73, and then the external water circulation device takes away the heat of the heat dissipation assembly 73, so that the high heat generated by the brush motor is taken away, by rotating the rotating shaft 5 when the rotor 4 drives the rotating shaft 5 to rotate, the heat in the shell 1 is taken away from the heat dissipation holes 71 on the rear cover 2, at the same time, the heat dissipation assembly 73 absorbs the heat of the shell 1, so that the brush motor can be efficiently cooled, the heat accumulation in the shell 1 of the brush motor is reduced, the possibility of affecting the normal work of the brush motor is reduced, and the service life of the brush motor is prolonged

[0040] With reference to Figure 2 、 Figure 3 and Figure 4 , the heat dissipation assembly 73 comprises two symmetrical heat dissipation cabins 731 fixed on the shell 1, one side of the two heat dissipation cabins 731 is provided with a water inlet pipe 732, the water inlet pipe 732 is fixedly connected with the two heat dissipation cabins 731, the water inlet pipe 732 communicates with the two heat dissipation cabins 731, and the other side of the two heat dissipation cabins 731 is provided with a water outlet pipe 733.

[0041] First, the water inlet pipe 732 and the water outlet pipe 733 are connected with the external water circulation device, so that the water flows into the heat dissipation cabin 731 from the water inlet pipe 732 and then flows out of the heat dissipation cabin 731 from the water outlet pipe 733, when the brush motor is working, the heat of the shell 1 of the brush motor is transferred to the heat dissipation cabin 731, the heat of the heat dissipation cabin 731 is absorbed by the water in the heat dissipation cabin 731, and then the water absorbing heat flows out of the heat dissipation cabin 731 from the water outlet pipe 733, so as to cool the shell 1, by transferring the heat of the brush motor to the heat dissipation cabin 731, and then transferring the heat in the heat dissipation cabin 731 to the water flow, the shell 1 of the brush motor can be further cooled, and the possibility of high heat generated by the brush motor is reduced.

[0042] With reference to Figure 2 and Figure 3The heat conduction cabin 731 is provided with a plurality of heat dissipation plates 734. The heat dissipation plates 734 are fixedly connected with the heat conduction cabin 731, penetrate the heat conduction cabin 731 and extend into the shell 1. When the brush motor works, the heat generated by the brush motor is transferred to the shell 1, the shell 1 transfers the heat to the heat conduction cabin 731, and then the heat conduction cabin 731 transfers the heat to the heat dissipation plates 734. When the water flows through the heat conduction cabin 731, the water is in contact with the heat dissipation plates 734, so that the efficiency of transferring the heat to the water is improved. At the same time, the heat dissipation plates 734 directly extend into the shell 1, the heat in the shell 1 is directly transferred to the heat dissipation plates 734, and then the heat dissipation plates 734 transfer the heat to the water. By fixing a plurality of heat dissipation plates 734 in the heat conduction cabin 731 and penetrating the shell 1, the efficiency of transferring the heat in the shell 1 to the water is improved, and the heat dissipation efficiency is further improved.

[0043] With reference to Figure 2 and Figure 3 , the plurality of heat dissipation plates 734 are distributed in a staggered manner. When the heat dissipation plates 734 are fixed in the heat conduction cabin 731, one end of the heat dissipation plates 734 abuts against the inner wall of the heat conduction cabin 731, and the other end is kept away from the heat conduction cabin 731. The plurality of heat dissipation plates 734 are alternately distributed. When the water flows into the heat conduction cabin 731 from the water inlet pipe 732, the water flows through the gap between the heat dissipation plates 734 and the heat conduction cabin 731 under the blockage of the heat dissipation plates 734, and then flows out from the water outlet pipe 733. By staggering the heat dissipation plates 734 in the heat conduction cabin 731, the water flows reciprocally under the guidance of the heat dissipation plates 734 when the water flows through the heat conduction cabin 731, so that the contact area between the water and the heat conduction cabin 731 is increased, and the heat dissipation efficiency is improved.

[0044] With reference to Figure 3 , Figure 4 and Figure 5 , the flow disturbing mechanism 8 comprises a plurality of flow disturbing plates 82 arranged in the heat conduction cabin 731. The flow disturbing plates 82 are arranged in a threaded manner. Both ends of the flow disturbing plates 82 are fixedly connected with support blocks 81 which are rotatably connected with the heat conduction cabin 731. A synchronous assembly 83 is arranged between one end of the heat conduction cabin 731 and the heat dissipation disc 72.

[0045] The rotor 4 drives the rotating shaft 5, and when the rotating shaft 5 rotates under the support of the bearing 6, the rotating shaft 5 drives the heat dissipation disc 72, and then the heat dissipation disc 72 drives the synchronous assembly 83, and the synchronous assembly 83 drives a plurality of supporting blocks 81 to rotate, and the supporting blocks 81 drive the spoiler 82 to rotate. When the spoiler 82 rotates in the heat conduction cabin 731, it stirs the water flow passing through it, so that the water flow can fully and uniformly absorb the heat of the heat conduction cabin 731 when it absorbs heat from the heat conduction cabin 731. By rotating the heat dissipation disc 72, the heat dissipation disc 72 drives the synchronous assembly 83, and the synchronous assembly 83 drives the supporting blocks 81, and the supporting blocks 81 drive the spoiler 82 to rotate, so that when the water flow passes through the heat conduction cabin 731, the possibility of heat absorption stratification can be reduced, the water flow can be more uniform, and the heat absorption efficiency can be improved.

[0046] Referring to Figure 3 and Figure 5 , the synchronous assembly 83 comprises a plurality of rotating rods 831 rotatably connected to the heat conduction cabin 731, and a gear 832 fixed on the rotating rod 831. The heat dissipation disc 72 is provided with uniformly distributed tooth grooves 833, and the gear 832 is engaged with the tooth grooves 833 on the heat dissipation disc 72.

[0047] When the rotating shaft 5 drives the heat dissipation disc 72 to rotate, the tooth grooves 833 on the heat dissipation disc 72 drive the gear 832 to rotate under the support of the rotating rod 831, and then the gear 832 drives the rotating rod 831 to drive the supporting block 81 to drive the spoiler 82 to rotate. By rotating the heat dissipation disc 72, the heat dissipation disc 72 drives the gear 832, and the gear 832 drives the rotating rod 831 to rotate, so that the spoiler 82 can be conveniently rotated in the heat conduction cabin 731, and the spoiler 82 can stir the water flow in the heat conduction cabin 731.

[0048] Referring to Figure 2 , Figure 3 and Figure 4 , the heat conduction cabin 731 is fixed with a protective cover 84 corresponding to the rotating rod 831 and the gear 832. The protective cover 84 is provided on the two heat dissipation cabins, and the protective cover 84 covers the plurality of rotating rods 831 and gears 832 to protect the rotating rods 831 and gears 832. By protecting the rotating rods 831 and gears 832 with the protective cover 84, the possibility of the normal rotation of the gears 832 and rotating rods 831 being affected by foreign matter can be reduced.

[0049] Working principle: in the production of the brush motor, the rotor 4 core is made of high-quality cold-rolled silicon steel sheet, which ensures the magnetic permeability and reduces the weight, the stator 3 winding adopts high-strength insulating enamel wire, which enhances the electrical performance and temperature resistance, the carbon brush 10 adopts graphite copper composite material, which maintains good conductivity and improves wear resistance, the rear end 2 cover and motor shell are made of aluminum alloy material, which is light and solid, and has good heat dissipation performance, then the corresponding shell 1, rear cover 2, stator 3, steering gear, bearing 6, shaft 5 and rotor 4 are assembled, when the brush motor is used, the stator 3 winding is energized, the magnetic field generated by the rotor 4 interacts with the magnetic field generated by the rotor 4, forming driving torque to make the rotor 4 rotate, the cooperation of commutator 9 and carbon brush 10 realizes the continuous conversion of current, so that the motor can work continuously at different phases, when the rotor 4 drives the shaft 5 to rotate on the bearing 6, the shaft 5 drives the heat dissipation disc 72 to rotate with the shaft 5, when the heat dissipation disc 72 rotates, the inclined wind tunnel 74 on the heat dissipation disc 72 rotates, the inclined wind tunnel 74 produces suction on the heat dissipation hole 71 on the rear cover 2, and the heat in the shell 1 is extracted from the heat dissipation hole 71 on the rear cover 2.

[0050] At the same time, the water inlet pipe 732 and the water outlet pipe 733 are connected with the water circulation device outside, so that the water flows into the heat conduction cabin 731 from the water inlet pipe 732, and then flows out from the water outlet pipe 733 of the heat conduction cabin 731, when the brush motor works, the heat of the brush motor shell 1 is transferred to the heat conduction cabin 731, the heat of the heat conduction cabin 731 is absorbed by the water in the heat conduction cabin 731, and then the water absorbing heat is discharged from the heat conduction cabin 731 through the water outlet pipe 733, realizing the cooling of the shell 1, when the heat dissipation disc 72 rotates, the gear groove 833 on the heat dissipation disc 72 drives the gear 832, the gear 832 rotates under the support of the rotating rod 831, then the gear 832 drives the rotating rod 831, the rotating rod 831 drives the supporting block 81, the supporting block 81 drives the spoiler 82 to rotate, the water flowing through is stirred, so that the water fully and uniformly absorbs the heat on the heat conduction cabin 731 when the water absorbs heat from the heat conduction cabin 731, and the brush motor is cooled.

Claims

1. A wear-resistant high-load small brush motor comprising a housing (1), characterized in that: The shell (1) is fixed with a rear cover (2), the shell (1) and the rear cover (2) are fixed with bearings (6), the two bearings (6) are rotatably connected with a rotating shaft (5), the rotating shaft (5) is fixed with a rotor (4), the shell (1) is fixed with a stator (3), the rear cover (2) is provided with a heat dissipation mechanism (7), the shell (1) is provided with a turbulence mechanism (8), the rotating shaft (5) is fixed with a commutator (9), the rear cover (2) is fixed with two symmetrical carbon brushes (10); The heat dissipation mechanism (7) comprises a heat dissipation disc (72) arranged on the rear cover (2), the heat dissipation disc (72) is fixedly connected with the rotating shaft (5), and the heat dissipation disc (72) is provided with uniformly distributed inclined wind tunnels (74); the shell (1) is provided with a heat conduction assembly (73), and the rear cover (2) and the shell (1) are provided with uniformly distributed heat dissipation holes (71); The heat conduction assembly (73) comprises two symmetrical heat conduction cabins (731) fixed on the shell (1), one side of the two heat conduction cabins (731) is provided with a water inlet pipe (732), the water inlet pipe (732) is fixedly connected with the two heat conduction cabins (731), the water inlet pipe (732) is communicated with the two heat conduction cabins (731), the other side of the two heat conduction cabins (731) is provided with a water outlet pipe (733), the water outlet pipe (733) is fixedly connected with the two heat conduction cabins (731), and the water outlet pipe (733) is communicated with the two heat conduction cabins (731); The heat conduction cabin (731) is provided with a plurality of heat dissipation plates (734), the heat dissipation plates (734) are fixedly connected with the heat conduction cabin (731), and the heat dissipation plates (734) penetrate through the heat conduction cabin (731) and extend into the shell (1); The turbulence mechanism (8) comprises a plurality of turbulence plates (82) arranged in the heat conduction cabin (731), the turbulence plates (82) are in screw distribution, both ends of the turbulence plate (82) are fixedly connected with supporting blocks (81), the supporting blocks (81) are rotatably connected with the heat conduction cabin (731), and a synchronous assembly (83) is arranged between one end of the heat conduction cabin (731) and the heat dissipation disc (72); The synchronous assembly (83) comprises a plurality of rotating rods (831) rotatably connected with the heat conduction cabin (731), the rotating rods (831) are fixedly connected with gears (832), the heat dissipation disc (72) is provided with uniformly distributed gear grooves (833), and the gears (832) are meshed with the gear grooves (833) on the heat dissipation disc (72).

2. The wear-resistant high-load small brush motor according to claim 1, characterized in that: The plurality of heat dissipation plates (734) are distributed in dislocation.

3. The wear-resistant high-load small brush motor according to claim 1, characterized in that: The heat conduction cabin (731) is fixedly connected with a protective cover (84), and the protective cover (84) corresponds to the rotating rods (831) and the gears (832).

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