A long-life brushless motor with thermal protection

Abstract

The present invention discloses a brushless motor with long life and thermal protection, belonging to the technical field of brushless motors, and provided with a motor housing with a protective function, and the inner surface of the motor housing is connected with a circuit, and the middle section of the inner surface of the circuit is provided with a rotor, and the right side of the outer surface of the motor housing is provided with an end cover; including: a connecting member, installed on the left side of the outer surface of the motor housing, and installed on the outer surface of the end cover, and the left side of the outer surface of the motor housing is connected with a planetary gear set. Heat sinks 1 and 2 assembled with the motor housing are provided to absorb the heat generated by the brushless motor, and the position of the fan is adjusted by gas expansion between the heated chamber and the airbag, thereby controlling the meshing between the spur gear and the internal gear, controlling the rotation of the fan, and dissipating heat for heat sink 1, and the cooperation of heat sink 1 and the heat pipe can further improve the heat dissipation effect through the use of a refrigeration chamber.

Description

Technical Field

[0001] The invention relates to the technical field of brushless motors, in particular to a brushless motor with a long service life and thermal protection. Background Art

[0002] A brushless motor is a type of motor that is assembled through components such as a rotor, a stator, and an electronic commutator. It has good high efficiency when used, as well as long service life, high speed and high torque. It can be effectively used in the fields of transportation, industrial automation, aerospace, and consumer electronics.

[0003] During use, the brushless motor easily generates heat. Long-term work can easily affect the service life of the brushless motor, and it is inconvenient to control the cooling effect of the brushless motor during use.

[0004] In order to overcome the above-mentioned defects, the prior art (Chinese patent application with application number CN202311362328.3 and application date 2023-10-20) discloses a brushless motor with a self-heating structure, which can realize active heat dissipation inside the motor without changing the shape of the motor, thereby reducing the motor temperature and improving the motor performance and service life.

[0005] There is also prior art (Chinese patent application with application number CN202311595147.5 and application date 2023-11-27) a brushless motor with efficient heat dissipation, which is equipped with a shell to cooperate with the motor shell, and can fill non-conductive liquid such as pure water and deionized water between the motor shell and the shell. At this time, a delivery pump is used to draw out the liquid between the motor shell and the shell, and the liquid is delivered into the hollow rod without affecting the normal rotation of the hollow rod through the rotation assistance of the connecting tube and the auxiliary bearing, and is directly sprayed from the water outlet onto the rotor which is most prone to heat, thereby greatly increasing the heat dissipation efficiency of the brushless motor, and allowing the brushless motor to cooperate with the heat dissipation mechanism to prevent dust and impurities from entering the interior of the brushless motor, while making the heat dissipation of the brushless motor more efficient and rapid.

[0006] And the prior art (Chinese patent application with application number CN202411196849.0 and application date 2024-08-29) is a rapid heat dissipation structure for a brushless motor. By adopting an expansion control part, the expansion and contraction of the expansion water bag can be automatically controlled during the operation of the structure. The piston structure of the structure is utilized, and it can be driven continuously. The expansion water bag can be expanded and fit the winding coil by controlling the hydraulic force, and at the same time it can automatically contract to avoid long-term fitting of the winding coil, resulting in the condensed water vapor covered on the surface of the coil being difficult to be blown dry by the wind of the exhaust impeller, causing erosion to the winding coil. It can ensure the large-area contact cooling quality of the winding, and can quickly retract to avoid the condensed water vapor being covered and difficult to discharge.

[0007] Although the existing technology can achieve cooling, it is not convenient to control the operation of the cooling device according to the usage during operation, which can easily cause the cooling device to work continuously for a long time, affecting its service life, and it is not convenient to control the heat dissipation effect.

[0008] In view of the above problems, it is urgent to carry out innovative design based on the original brushless motor. Summary of the invention

[0009] The purpose of the present invention is to provide a long-life brushless motor with thermal protection to solve the problem raised in the above background technology that it is inconvenient to control the operation of the cooling device according to the usage during the working process, which easily causes the cooling device to work continuously for a long time, affecting its service life, and it is inconvenient to control the heat dissipation effect.

[0010] To achieve the above object, the present invention provides the following technical solution: a brushless motor with long life and heat protection, provided with a motor housing with protective function, the inner surface of the motor housing is connected with a circuit, and a rotor is provided in the middle section of the inner surface of the circuit, and an end cover is installed on the right side of the outer surface of the motor housing;

[0011] It comprises: a connecting member, which is installed on the left side of the outer surface of the motor housing and the outer surface of the end cover, and the left side of the outer surface of the motor housing is connected with a planetary gear set, and the front side of the outer surface of the motor housing is nested with a heat sink 1, and a hinge is installed on the lower surface of the heat sink 1, and a heat sink 2 is installed on the rear side of the outer surface of the hinge, and the heat sink 1 is provided with a temperature monitoring mechanism;

[0012] A nesting block is nested and connected to the inner surface of the heat sink, and a heating chamber is installed on the outer surface of the nesting block, and the heating chamber is provided with a gas expansion mechanism;

[0013] The heat dissipation pipe is nested and connected to the outer surface of the heat dissipation element 1, and the heat dissipation pipe is provided with a circulating refrigeration mechanism.

[0014] Preferably, the connecting member is embedded and installed at equal angles to the side of the outer surface of the motor housing, and the motor housing and the planetary gear set form a threaded structure, and the motor housing and heat sink 1 form a nested structure, while heat sink 1 forms a rotating structure with heat sink 2 through a hinge.

[0015] Through the above structure, the heat sink 1 and the heat sink 2 can be stably assembled during use, and the two can cooperate to form heat dissipation.

[0016] Preferably, the inner surface of the heat sink 1 is slidably connected with a slider, and a clamp is installed on the rear side of the outer surface of the slider, and the clamp is limitedly engaged with the inner surface of the heat sink 2, and a return spring 1 is elastically connected between the slider and the heat sink 1;

[0017] The heat sink 1 forms an elastic sliding structure with the slider through the return spring 1, and the slider and the clamping member form an integrated structure, and the heat sink 1 forms a limiting clamping structure with the heat sink 2 through the clamping member.

[0018] Through the above structure, the slider on the heat sink 1 can be controlled during use to form a snap-fit ​​position with the heat sink 2, thereby improving the stability of the assembly between the heat sink 1 and the heat sink 2.

[0019] Preferably, in the temperature monitoring mechanism, a fin is installed on the side of the outer surface of the heat sink one, and an extrusion ring is installed on the inner surface of the heat sink one, and a positioning groove is opened on the outer surface of the fin, and a fixing seat is installed on the front side of the outer surface of the heat sink one, and the inner surface of the fixing seat is nested and connected with a temperature detector, and a temperature detection needle is installed on the rear side of the outer surface of the temperature detector, and the temperature detection needle passes through the inner surface of the heat sink one and the motor housing, and a card block is slidably connected to the inner surface of the temperature detector, and a reset spring 2 is elastically connected between the card block and the temperature detector, and the card block is limitedly engaged with the inner surface of the fixing seat.

[0020] Through the above structure, it is convenient to connect the extrusion ring during use to prevent sliding on the motor housing, and through the use of the temperature detector and the temperature detection needle on the heat sink, the temperature of the brushless motor can be monitored for subsequent control of the cooling of the heat pipe, and the temperature detector can be conveniently disassembled and assembled in conjunction with the card block.

[0021] Preferably, the heat sink 1 forms an integrated structure with the fin and the extrusion ring, and the positioning grooves are opened at equal distances about the outer surface of the fin, and the fixing seat is embedded in the outer surface of the heat sink 1, and the heat sink 1 and the temperature detection needle form a through structure, and the temperature detector and the temperature detection needle form an integrated structure, and the temperature detector forms an elastic sliding structure with the clamping block through the reset spring 2, and the clamping block and the fixing seat form a limiting clamping structure.

[0022] Through the above structure, the convenience of disassembly and assembly of the temperature detector can be controlled during use to prevent it from falling off, and the monitoring of the temperature of the brushless motor can be improved.

[0023] Preferably, a transmission tube is installed on the right side of the outer surface of the heated chamber in the gas expansion mechanism, and an airbag is installed on the right side of the outer surface of the transmission tube, and a nesting ring is installed on the left side of the outer surface of the airbag, and the nesting ring is nested on the inner surface of the end cover, and a movable plate is bonded and connected to the right side of the outer surface of the airbag.

[0024] Through the above structure, when in use, the heated chamber can be controlled to cooperate with the transmission tube to connect the airbag, and cooperate with the nested ring to control the position of the moving plate.

[0025] Preferably, the heated chamber forms a limiting structure through a nested block and a heat sink, and the heated chamber forms a gas transmission structure through a transmission tube and an airbag, and the airbag forms a nested structure through a nested ring and an end cover, and the airbag and a movable plate form a bonding structure.

[0026] Through the above structure, when in use, the gas inside the heated chamber expands due to heat, and the size of the airbag is controlled, thereby promoting the stability of the movable plate in use.

[0027] Preferably, a guide rod is connected through the inner surface of the movable plate, and the guide rod is installed on the left side of the outer surface of the end cover, and an extrusion spring is connected on the right side between the guide rod and the movable plate, and a rotating ring is nested and connected on the right side of the inner surface of the movable plate, and a fan is installed on the outer surface of the rotating ring, and a spur gear is installed on the right side of the outer surface of the fan, and the outer surface of the spur gear is meshed with an internal gear, and a rotor is installed on the inner surface of the internal gear;

[0028] The movable plate forms an elastic sliding structure with the end cover through the guide rod and the extrusion spring, and the movable plate forms a positioning rotation structure with the fan through the rotating ring, and the fan and the spur gear form an integrated structure, and the fan forms a meshing rotation structure with the rotor through the spur gear and the internal gear.

[0029] Through the above structure, the movable plate can be controlled to form limited sliding when in use, and to form elastic reset when the airbag shrinks, and the rotating ring nested in the movable plate will control the fan to form a positioning rotation, and the spur gear installed on the fan will form a meshing setting with the internal gear.

[0030] Preferably, the outer surface of the heat dissipation pipe in the circulating refrigeration mechanism is nested and connected with a protective shell, and a refrigeration bin is installed on the lower surface of the protective shell, and a cooling strip is installed on the lower side of the inner surface of the refrigeration bin, and a positioning sleeve is installed on the lower side of the outer surface of the refrigeration bin, and at the same time, a semiconductor heat sink is nested and connected to the inner surface of the positioning sleeve, and the lower surface of the semiconductor heat sink is fitted and connected with heat dissipation component three.

[0031] Through the above structure, the positioning connection of the heat dissipation pipe is controlled during use, and the circulating water is cooled by using the refrigeration bin and the cooling strip.

[0032] Preferably, the heat dissipation pipe forms a nested snap-fit ​​structure with the fins through the positioning groove, and the heat dissipation pipe and the protective shell penetrate the structure, and the protective shell, the refrigeration bin, the cooling strip and the positioning sleeve form an integrated structure, while the positioning sleeve and the semiconductor heat sink form a nested structure, and the semiconductor heat sink and the heat sink form a fitted heat dissipation structure.

[0033] Through the above structure, the heat dissipation effect and heat dissipation rate can be effectively improved during use, and the service life of the brushless motor and the overheating protection can be increased.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. A heat sink 1 and a heat sink 2 assembled with a motor housing are provided to absorb the heat generated by the brushless motor, and the position of the fan is adjusted by the expansion of the gas between the heated chamber and the air bag, thereby controlling the meshing between the spur gear and the internal gear, controlling the rotation of the fan, and dissipating heat for the heat sink 1. In addition, the cooperation between the heat sink 1 and the heat pipe can further improve the heat dissipation effect through the use of the refrigeration chamber;

[0036] 2. A temperature monitoring mechanism is provided, which is convenient for the heat sink 1 and the heat sink 2 to be rotated, and the stability of the two when they are docked can be controlled by using a card block, and the built-in extrusion rings of the two can prevent sliding on the outer surface of the motor housing, and the outer side of the heat sink 1 can be assembled with a fixed seat, which can be used to install a temperature detection needle on the temperature detector to improve the temperature monitoring, so that when the temperature is high, the refrigeration bin and the heat dissipation pipe can be controlled to form a circulating heat dissipation.

[0037] Furthermore, a gas expansion mechanism is provided. When the brushless motor generates heat at a low speed, the heat transfer can heat the gas inside the heated chamber and control the airbag to be inflated, thereby adjusting the moving plate connected to the airbag to slide on the guide rod, controlling the compression spring to contract, and adjusting the position of the fan on the rotating ring;

[0038] Furthermore, while controlling the position of the fan, the rotating ring forms a limited rotation in the movable plate, thereby controlling the spur gear installed on the fan to mesh with the internal gear on the rotor, thereby controlling the rotation of the fan, and passing the wind force through the heat sink 1 and the heat sink 2 to form heat dissipation, and when the rotor is reversed, it can cooperate with the hole slots of the protective shell and the open end on the left side to form an air intake cooling effect;

[0039] 3. A circulating refrigeration mechanism is provided. When high temperature is detected by the temperature detection needle on the temperature detector, the fan will be rotated and the micro pump in the refrigeration bin will be synchronously controlled to control the cooling water to be transported to the heat pipe, so as to dissipate heat for the heat sink 1 and the heat sink 2 after absorbing heat. In combination with the use of the semiconductor heat sink and the heat sink 3, the cooling strips in the refrigeration bin can be quickly cooled, and the circulating water flow can be quickly cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the three-dimensional structure of the motor housing of the present invention;

[0041] Figure 2 A schematic diagram of a semi-cut three-dimensional structure of a motor housing of the present invention;

[0042] Figure 3It is a partial cross-sectional three-dimensional structural schematic diagram of a heat sink of the present invention;

[0043] Figure 4 It is a schematic diagram of a half-section three-dimensional structure of the heat sink of the present invention;

[0044] Figure 5 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the heating chamber of the present invention;

[0045] Figure 6 It is a schematic diagram of a half-section three-dimensional structure of a heating chamber of the present invention;

[0046] Figure 7 It is a semi-sectioned three-dimensional structural schematic diagram of the movable plate of the present invention;

[0047] Figure 8 A schematic diagram of a half-section three-dimensional structure of the protective housing of the present invention;

[0048] Fig. 9 It is a schematic diagram of a partially cutaway three-dimensional structure of a heat dissipation pipe of the present invention;

[0049] Fig.10 It is a schematic diagram of a partial cross-sectional three-dimensional structure of a refrigeration warehouse of the present invention.

[0050] In the figure: 1. Motor housing; 2. Circuit; 3. Rotor; 4. End cover; 5. Connector; 6. Planetary gear set; 7. Heat sink 1; 701. Slider; 702. Clamp; 703. Return spring 1; 8. Hinge; 9. Heat sink 2; 10. Fin; 11. Extrusion ring; 12. Positioning groove; 13. Fixing seat; 14. Temperature detector; 15. Temperature detection needle; 16. Clamp; 17. Return spring 2; 18. Nested block; 19. Heating chamber; 20. Transmission tube; 21. Air bag; 22. Nested ring; 23. Moving plate; 2301. Guide rod; 2302. Extrusion spring; 2303. Rotating ring; 2304. Fan; 2305. Spur gear; 2306. Internal gear; 24. Heat dissipation pipe; 25. Protective shell; 26. Refrigeration chamber; 27. Cooling strip; 28. Positioning sleeve; 29. ​​Semiconductor heat sink; 30. Heat dissipation part three. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1-Figure 10The present invention provides a technical solution: a long-life brushless motor with thermal protection, which is provided with a motor housing 1 with a protective function, and the inner surface of the motor housing 1 is connected with a circuit 2, and a rotor 3 is provided in the middle section of the inner surface of the circuit 2, and an end cover 4 is installed on the right side of the outer surface of the motor housing 1.

[0053] Embodiment 1: Figure 1-Figure 5 The technical solution shown in the figure, the present invention provides the following technical solution: a long-life brushless motor with thermal protection, disclosed:

[0054] It includes: a connecting member 5, which is installed on the left side of the outer surface of the motor housing 1 and the outer surface of the end cover 4, and the left side of the outer surface of the motor housing 1 is connected with a planetary gear set 6, and the front side of the outer surface of the motor housing 1 is nested with a heat sink 7, and the lower surface of the heat sink 7 is installed with a hinge 8, and the rear side of the outer surface of the hinge 8 is installed with a heat sink 2 9, and the heat sink 7 is provided with a temperature monitoring mechanism;

[0055] The connecting member 5 is embedded and installed at equal angles with the side of the outer surface of the motor housing 1, and the motor housing 1 and the planetary gear set 6 form a threaded structure, and the motor housing 1 and the heat sink 1 7 form a nested structure, and the heat sink 1 7 forms a rotating structure with the heat sink 2 9 through the hinge 8.

[0056] The inner surface of the heat sink 1 7 is slidably connected with a slider 701, and a clamp 702 is installed on the rear side of the outer surface of the slider 701, and the clamp 702 is limitedly engaged with the inner surface of the heat sink 2 9, and a return spring 1 703 is elastically connected between the slider 701 and the heat sink 1 7;

[0057] The heat sink 1 7 and the slider 701 form an elastic sliding structure through the return spring 1 703, and the slider 701 and the clamp 702 form an integrated structure, and the heat sink 1 7 and the heat sink 2 9 form a limiting clamping structure through the clamp 702.

[0058] In the temperature monitoring mechanism, a fin 10 is installed on the side of the outer surface of the heat sink 7, and an extrusion ring 11 is installed on the inner surface of the heat sink 7, and a positioning groove 12 is opened on the outer surface of the fin 10, and a fixing seat 13 is installed on the front side of the outer surface of the heat sink 7, and a temperature detector 14 is nested and connected to the inner surface of the fixing seat 13, and a temperature detection needle 15 is installed on the rear side of the outer surface of the temperature detector 14, and the temperature detection needle 15 passes through the inner surface of the heat sink 7 and the motor housing 1, and a clamping block 16 is slidably connected to the inner surface of the temperature detector 14, and a reset spring 17 is elastically connected between the clamping block 16 and the temperature detector 14, and the clamping block 16 is limitedly engaged with the inner surface of the fixing seat 13.

[0059] The heat sink 7 forms an integrated structure with the fin 10 and the extrusion ring 11, and the positioning groove 12 is opened at an equal distance with respect to the outer surface of the fin 10, and the fixing seat 13 is embedded and installed with the outer surface of the heat sink 7, and the heat sink 7 and the temperature detection needle 15 form a through structure, and the temperature detector 14 and the temperature detection needle 15 form an integrated structure, and the temperature detector 14 forms an elastic sliding structure with the block 16 through the reset spring 2 17, and the block 16 and the fixing seat 13 form a limiting locking structure.

[0060] When in use, the circuit 2 and the rotor 3 are assembled on the inner surface of the motor housing 1, and an end cover 4 is installed on the right side of the outer surface of the motor housing 1, and a connecting piece 5 is installed on the outer surface of the end cover 4, and a protective cover is assembled through the connecting piece 5 to avoid safety hazards to nearby personnel when the fan 2304 rotates in the later stage, and a planetary gear set 6 is assembled on the left side of the outer surface of the motor housing 1 to control the operation of the machine. When the motor housing 1 is in use, the heat sink 1 7 and the heat sink 2 9 are wrapped on the outer surface of the motor housing 1, and the extrusion ring 11 built into both is used to prevent the heat sink 1 7 and the heat sink 2 9 from sliding on the outer surface of the motor housing 1, thereby improving the assembly stability. According to the hinge 8 assembled between the heat sink 1 7 and the heat sink 2 9, the reset spring 1 703 assembled in the heat sink 1 7 and the clamp 702 installed on the elastic adjustment slider 701 can be quickly matched to stably engage with the inner surface of the heat sink 2 9, and control the heat sink The stability of the assembly between the heat element 1 7 and the heat sink 2 9 is improved. When the brushless motor generates temperature during low-speed operation, the temperature is absorbed by the fins 10 installed on the heat sink 1 7 and the heat sink 2 9, and the heat is simultaneously transmitted to the nested blocks 18 in which the heat sink 1 7 and the heat sink 2 9 are nested, and through the heated chamber 19 on the nested blocks 18, a heating control is formed to control the expansion of the internal gas for subsequent cooling processing and improve the heat dissipation stability. When the temperature detector 14 nested in the fixed seat 13 and the temperature detection needle 15 installed thereon detect high temperature, the subsequent heat dissipation pipe 24 will be synchronously controlled to quickly cool down the high temperature. When the temperature detection needle 15 is used, it will cooperate with the reset spring 2 17 built into the temperature detector 14, and the elastic control block 16 will be engaged in the fixed seat 13 to control the stability of the temperature detector 14 and prevent it from falling off. When the temperature detector 14 is damaged in the later stage, it is also convenient for quick replacement.

[0061] Embodiment 2: Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 The technical solution shown in the embodiment 1 further discloses that the heated chamber 19 controls the airbag 21 to cool down the brushless motor rotating at a low speed, and the specific contents are as follows:

[0062] The nesting block 18 is nested and connected to the inner surface of the heat sink 7, and the outer surface of the nesting block 18 is installed with a heating chamber 19, and the heating chamber 19 is provided with a gas expansion mechanism;

[0063] A transmission tube 20 is installed on the right side of the outer surface of the heated chamber 19 in the gas expansion mechanism, and an airbag 21 is installed on the right side of the outer surface of the transmission tube 20, and a nesting ring 22 is installed on the left side of the outer surface of the airbag 21, and the nesting ring 22 is nested in the inner surface of the end cover 4, and a movable plate 23 is bonded and connected to the right side of the outer surface of the airbag 21.

[0064] The heated chamber 19 forms a limiting structure with the heat sink 7 through the nesting block 18, and the heated chamber 19 forms a gas transmission structure with the airbag 21 through the transmission pipe 20, and the airbag 21 forms a nesting structure with the end cover 4 through the nesting ring 22, and the airbag 21 and the movable plate 23 form a bonding structure.

[0065] A guide rod 2301 is connected through the inner surface of the moving plate 23, and the guide rod 2301 is installed on the left side of the outer surface of the end cover 4, and an extrusion spring 2302 is connected on the right side between the guide rod 2301 and the moving plate 23, and a rotating ring 2303 is nested and connected on the right side of the inner surface of the moving plate 23, and a fan 2304 is installed on the outer surface of the rotating ring 2303, and a spur gear 2305 is installed on the right side of the outer surface of the fan 2304, and the outer surface of the spur gear 2305 is meshed with an internal gear 2306, and the inner surface of the internal gear 2306 is installed with a rotor 3;

[0066] The movable plate 23 forms an elastic sliding structure with the end cover 4 through the guide rod 2301 and the extrusion spring 2302, and the movable plate 23 forms a positioning rotation structure with the fan 2304 through the rotating ring 2303, and the fan 2304 and the spur gear 2305 form an integrated structure, and the fan 2304 forms a meshing rotation structure with the rotor 3 through the spur gear 2305 and the internal gear 2306.

[0067] When the heat sink 19 assembled by the nesting block 18 absorbs heat from the heat sink 19, the gas inside the heat sink 19 is heated and expanded, and the expanded gas is transported to the airbag 21 through the transmission pipe 20 installed in the heat sink 19, and the airbag 21 is positioned on the right side of the end cover 4 through the nesting ring 22. Due to the expansion of the airbag 21, the moving plate 23 pressed against the airbag 21 slides on the guide rod 2301, and the squeezing spring 2302 on the right side of the guide rod 2301 is contracted, and the rotating ring 2303 built in the moving plate 23 is synchronously controlled to drive the rotating ring 2303 to rotate. The fan 2304 installed on the rotating ring 2303 and the spur gear 2305 installed on the fan 2304 are meshed with the inner surface of the internal gear 2306 installed on the right end of the rotor 3. Through the rotation of the rotor 3, the fan 2304 on the spur gear 2305 controlled by the meshing of the internal gear 2306 is driven to rotate, so as to dissipate heat for the brushless motor, and the heat sink 1 7, the heat sink 2 9, the fins 10 and the heated chamber 19 assembled therein are used synchronously. When the rotor 3 rotates in the reverse direction, the holes and grooves on the protective housing 25 and the open structure at the left end are also used to form an air intake cooling treatment.

[0068] Embodiment 3: Figure 1 , Figure 2 , Figure 8 , Fig. 9 and Fig.10 The technical solution shown in the embodiment 2 further discloses a rapid cooling process when the brushless motor rotates at high speed, and the specific contents are as follows:

[0069] The heat dissipation pipe 24 is nested and connected to the outer surface of the heat dissipation element 7, and the heat dissipation pipe 24 is provided with a circulating refrigeration mechanism.

[0070] The outer surface of the heat dissipation pipe 24 in the circulating refrigeration mechanism is nested and connected with a protective shell 25, and a refrigeration bin 26 is installed on the lower surface of the protective shell 25, and a cooling strip 27 is installed on the lower side of the inner surface of the refrigeration bin 26, and a positioning sleeve 28 is installed on the lower side of the outer surface of the refrigeration bin 26, and at the same time, a semiconductor heat sink 29 is nested and connected to the inner surface of the positioning sleeve 28, and a heat sink 30 is bonded and connected to the lower surface of the semiconductor heat sink 29.

[0071] The heat dissipation pipe 24 forms a nested snap-fit ​​structure with the fin 10 through the positioning groove 12, and the heat dissipation pipe 24 and the protective shell 25 penetrate the structure, and the protective shell 25 forms an integrated structure with the refrigeration bin 26, the cooling strip 27 and the positioning sleeve 28, while the positioning sleeve 28 and the semiconductor heat sink 29 form a nested structure, and the semiconductor heat sink 29 and the heat sink 30 form a fitted heat dissipation structure.

[0072] When the temperature detection needle 15 on the temperature detector 14 detects high temperature, the micro pump assembled by the heat dissipation pipe 24 will be started to transmit the cooling water in the refrigeration bin 26, and the fins 10 assembled by the heat dissipation pipe 24 and the positioning grooves 12 will be used to form a cooling treatment, and the cooled water will flow back to the refrigeration bin 26 installed in the protective shell 25, and cooperate with the semiconductor heat sink 29 connected to the positioning sleeve 28 assembled in the refrigeration bin 26 to control the cooling strip 27 to cool the return water, which can quickly improve the refrigeration effect, and cooperate with the heat dissipation fan set on the heat sink three 30 connected to the semiconductor heat sink 29 to form a cooling treatment, improve the refrigeration stability, and further form overheat protection for the brushless motor and increase the service life of the brushless motor.

[0073] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brushless motor with long life and heat protection, comprising a motor housing (1) having a protective function, wherein a circuit (2) is connected to the inner surface of the motor housing (1), and a rotor (3) is arranged in the middle section of the inner surface of the circuit (2), and an end cover (4) is installed on the right side of the outer surface of the motor housing (1); It is characterized in that include: A connecting member (5) is mounted on the left side of the outer surface of the motor housing (1) and on the outer surface of the end cover (4), and the left side of the outer surface of the motor housing (1) is connected to a planetary gear set (6), and the front side of the outer surface of the motor housing (1) is nested with a heat sink 1 (7), and a hinge (8) is mounted on the lower surface of the heat sink 1 (7), and a heat sink 2 (9) is mounted on the rear side of the outer surface of the hinge (8), and the heat sink 1 (7) is provided with a temperature monitoring mechanism; A nesting block (18) is nested and connected to the inner surface of the heat sink (7), and a heating chamber (19) is installed on the outer surface of the nesting block (18), and the heating chamber (19) is provided with a gas expansion mechanism; A transmission tube (20) is installed on the right side of the outer surface of the heated chamber (19) in the gas expansion mechanism, and an air bag (21) is installed on the right side of the outer surface of the transmission tube (20), and a nesting ring (22) is installed on the left side of the outer surface of the air bag (21), and the nesting ring (22) is nested in the inner surface of the end cover (4), and a movable plate (23) is attached to the right side of the outer surface of the air bag (21); The inner surface of the movable plate (23) is connected with a guide rod (2301) penetrating therethrough, and the guide rod (2301) is mounted on the left side of the outer surface of the end cover (4), and a compression spring (2302) is connected on the right side between the guide rod (2301) and the movable plate (23), and a rotating ring (2303) is nested and connected on the right side of the inner surface of the movable plate (23), and a fan (2304) is mounted on the outer surface of the rotating ring (2303), and a spur gear (2305) is mounted on the right side of the outer surface of the fan (2304), and an inner gear (2306) is meshedly connected to the outer surface of the spur gear (2305), and a rotor (3) is mounted on the inner surface of the inner gear (2306); The movable plate (23) forms an elastic sliding structure with the end cover (4) through the guide rod (2301) and the extrusion spring (2302), and the movable plate (23) forms a positioning rotation structure with the fan (2304) through the rotating ring (2303), and the fan (2304) and the spur gear (2305) form an integrated structure, and the fan (2304) and the rotor (3) form a meshing rotation structure through the spur gear (2305) and the internal gear (2306); The heat dissipation pipe (24) is nested and connected to the outer surface of the first heat dissipation element (7), and the heat dissipation pipe (24) is provided with a circulating refrigeration mechanism.

2. A brushless motor with long life and thermal protection according to claim 1, characterized in that: The connecting member (5) is embedded and installed at equal angles with the side edge of the outer surface of the motor housing (1), and the motor housing (1) and the planetary gear set (6) form a threaded structure, and the motor housing (1) and the heat sink one (7) form a nested structure, while the heat sink one (7) forms a rotating structure with the heat sink two (9) via a hinge (8).

3. The brushless motor with long life and thermal protection according to claim 1, characterized in that: The inner surface of the heat sink 1 (7) is slidably connected to a slider (701), and a clamp (702) is installed on the rear side of the outer surface of the slider (701), and the clamp (702) is limitedly clamped on the inner surface of the heat sink 2 (9), and a return spring 1 (703) is elastically connected between the slider (701) and the heat sink 1 (7); The heat sink 1 (7) forms an elastic sliding structure with the slider (701) through the return spring 1 (703), and the slider (701) and the clamp (702) form an integrated structure, and the heat sink 1 (7) forms a limiting clamping structure with the heat sink 2 (9) through the clamp (702).

4. The brushless motor with long life and thermal protection according to claim 1, characterized in that: In the temperature monitoring mechanism, a fin (10) is installed on the side of the outer surface of the heat sink (7), and an extrusion ring (11) is installed on the inner surface of the heat sink (7), and a positioning groove (12) is opened on the outer surface of the fin (10), and a fixing seat (13) is installed on the front side of the outer surface of the heat sink (7), and a temperature detector (14) is nested and connected on the inner surface of the fixing seat (13), and a temperature detection needle (15) is installed on the rear side of the outer surface of the temperature detector (14), and the temperature detection needle (15) passes through the heat sink (7) and the inner surface of the motor housing (1), and a clamping block (16) is slidably connected to the inner surface of the temperature detector (14), and a second return spring (17) is elastically connected between the clamping block (16) and the temperature detector (14), and the clamping block (16) is limitedly clamped on the inner surface of the fixing seat (13).

5. The brushless motor with long life and thermal protection according to claim 1, characterized in that: The heat sink (7) forms an integrated structure with the fin (10) and the extrusion ring (11), and the positioning groove (12) is provided at an equal distance from the outer surface of the fin (10), and the fixing seat (13) is embedded and installed with the outer surface of the heat sink (7), and the heat sink (7) and the temperature detection needle (15) form a through structure, and the temperature detector (14) and the temperature detection needle (15) form an integrated structure, and the temperature detector (14) and the clamping block (16) form an elastic sliding structure through the temperature reset spring (17), and the clamping block (16) and the fixing seat (13) form a limit locking structure.

6. A brushless motor with long life and thermal protection according to claim 1, characterized in that: The heated chamber (19) forms a limiting structure with the heat sink (7) through the nesting block (18), and the heated chamber (19) forms a gas transmission structure with the airbag (21) through the transmission tube (20), and the airbag (21) forms a nesting structure with the end cover (4) through the nesting ring (22), and the airbag (21) and the movable plate (23) form a bonding structure.

7. The brushless motor with long life and thermal protection according to claim 1, characterized in that: The outer surface of the heat dissipation pipe (24) in the circulating refrigeration mechanism is nested and connected with a protective shell (25), and a refrigeration bin (26) is installed on the lower surface of the protective shell (25), and a cooling strip (27) is installed on the lower side of the inner surface of the refrigeration bin (26), and a positioning sleeve (28) is installed on the lower side of the outer surface of the refrigeration bin (26), and a semiconductor heat sink (29) is nested and connected on the inner surface of the positioning sleeve (28), and a heat sink three (30) is bonded and connected to the lower surface of the semiconductor heat sink (29).

8. A brushless motor with long life and thermal protection according to claim 7, characterized in that: The heat dissipation pipe (24) forms a nested engaging structure with the fin (10) through the positioning groove (12), and the heat dissipation pipe (24) and the protective shell (25) penetrate the structure, and the protective shell (25) and the refrigeration chamber (26), the cooling strip (27) and the positioning sleeve (28) form an integrated structure, while the positioning sleeve (28) and the semiconductor heat dissipation sheet (29) form a nested structure, and the semiconductor heat dissipation sheet (29) and the heat dissipation element three (30) form a fitted heat dissipation structure.

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