A heat dissipation integrated motor stator and rotor mechanism

Abstract

The present invention discloses a heat dissipation integrated motor stator and rotor mechanism, belonging to the technical field of integrated motors. A heat dissipation integrated motor stator and rotor mechanism comprises a rotor arranged in a housing, the rotor having a rotating shaft, a rotor core formed at the rotating shaft, and heat dissipation components arranged at both ends of the rotating shaft at the rotor core, the heat dissipation components being used to simultaneously perform heat conversion on the inside and outside of the rotating shaft. By arranging heat dissipation components at both ends of the rotating shaft at the rotor core, heat conversion on the inside and outside of the rotating shaft is achieved simultaneously, which not only takes into account the internal heat generated by the rotor core and the rotating shaft due to electromagnetic action, but also takes into account the influence of the external environment on the overall temperature of the motor, thereby achieving a more comprehensive and efficient heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated motors, and in particular to a heat dissipation integrated motor stator and rotor mechanism. Background Art

[0002] With the continuous development of science and technology, the application of motors is becoming more and more extensive. In terms of the rotor installation position, motors can be divided into two categories: inner rotor motors and outer rotor motors. Outer rotor motors have large torque, low noise, high speed, and can have more magnetic poles. When the motor is running, the magnetic pole switching angle is small and the overall vibration is small. Therefore, the application of outer rotor motors is increasing. When the outer rotor motor is running, it will inevitably generate heat. The existing outer rotor motor has poor heat dissipation effect. When running for a long time, the normal operation will be affected due to motor overheating. Summary of the invention

[0003] The present invention provides a heat dissipation integrated motor stator and rotor mechanism, which can overcome certain or some defects of the prior art.

[0004] According to the present invention, a heat dissipation integrated motor stator and rotor mechanism includes a rotor arranged in a shell, the rotor has a rotating shaft, a rotor core is formed at the rotating shaft, and heat dissipation components are provided at both ends of the rotating shaft. The heat dissipation components are used to simultaneously perform heat conversion on the inside and outside of the rotating shaft.

[0005] Preferably, a cavity is formed in the rotating shaft along the axial direction; an inner tube is formed in the cavity along the axial direction, a fitting gap is formed between the outer wall of the inner tube and the cavity, an oil inlet communicating with the inner tube and an oil outlet channel communicating with the fitting gap are formed on the side wall of the rotating shaft, and an oil outlet communicating with the inner tube is formed at one end of the rotating shaft.

[0006] The cavity formed inside the rotating shaft and the setting of the inner tube provide a channel for the circulation of the medium, so that the medium can enter the inner tube through the oil inlet, and then flow along the axial direction of the inner tube, and heat exchange is carried out through the matching gap between the outer wall of the inner tube and the cavity, which can make full use of the internal space of the rotating shaft for heat conduction, effectively absorb and take away the heat generated by the rotating shaft and the rotor core.

[0007] It is understandable that when the medium flows in the fitting gap, it can further exchange heat with the side wall of the rotating shaft, thereby improving the heat dissipation efficiency, so that the medium is discharged through the oil outlet channel and the oil outlet, completing a heat dissipation cycle.

[0008] Preferably, the rotor includes a mounting cylinder which is arranged on the inner wall of the shell and rotatably cooperates with the rotating shaft, an oil storage chamber which is connected with the oil inlet is formed inside the mounting cylinder, first recovery annular grooves are formed on both sides of the oil storage chamber, first bearings which are interference fit with the rotating shaft are provided on both sides of the first recovery annular groove, a first oil seal is provided on the side of the first bearing away from the oil storage chamber, and a collecting groove which is connected with the oil outlet channel is provided on the side of the other first bearing away from the oil storage chamber, second recovery annular grooves are formed on both sides of the collecting groove, a first oil tank which is connected with the collecting groove is provided at the mounting cylinder, and a second oil tank which is connected with the oil storage chamber is provided at the mounting cylinder.

[0009] A complete medium cycle is formed by the oil storage cavity, the first recovery ring groove, the first bearing, the first oil seal, the collecting groove, the second recovery ring groove, the first oil tank and the second oil tank, thereby ensuring the effective use of the medium and improving the heat dissipation effect.

[0010] Preferably, the rotor also includes a fixed seat arranged at the side wall of the shell and rotatably cooperated with the rotating shaft, the fixed seat has an installation cavity that passes through the oil outlet, a piston is slidably provided in the installation cavity, the piston divides the installation cavity into a pressure relief chamber and an equipment chamber, and a spring for connecting to the piston is provided on the inner side wall of the equipment chamber, the spring is used to provide an elastic force to keep the piston pressed against the pressure relief chamber.

[0011] The installation cavity arranged in the fixing seat is connected with the oil outlet, providing a channel for the discharge of the medium. The internal pressure is adjusted and released by the movement of the piston to prevent the motor from being damaged due to excessive pressure.

[0012] Through the setting of the spring, an elastic force is provided for the piston to press against the pressure relief chamber. When the medium is discharged, the elastic force of the spring can ensure that the piston can respond and move in time, thereby effectively adjusting and releasing the pressure.

[0013] Specifically, when the shaft rotates, the temperature rises. At this time, the medium in the inner tube is heated, causing the volume of the medium to expand, and then it flows out through the oil outlet to squeeze the piston into the pressure relief chamber. The medium in the pressure relief chamber flows into the fitting gap through the connecting channel. The fitting gap exchanges the heat of the medium in the inner tube and the heat of the outer wall of the shaft at the same time, until it enters the collecting tank through the oil outlet channel, and is then squeezed from the collecting tank into the first oil tank for circulation and cooling.

[0014] Preferably, a second bearing which is interference fit with the rotating shaft is provided at the pressure relief chamber, and a second oil seal for sealing the pressure relief chamber is provided at the end of the pressure relief chamber.

[0015] By setting the second oil seal, the gap between the pressure relief chamber and the external environment is effectively sealed to prevent leakage of the medium during the discharge process, which helps to maintain the integrity and reliability of the heat dissipation system and avoid motor failure caused by medium leakage.

[0016] Preferably, a connecting passage penetrating the pressure relief chamber and the fitting gap is formed in the rotating shaft, and the connecting passage is used to guide the oil inside the inner tube into the fitting gap.

[0017] By setting the connecting channel, the oil inside the inner tube can be smoothly introduced into the fitting gap for heat exchange circulation.

[0018] Preferably, fan blades are provided at the rotating shaft, and the fan blades are used to dissipate heat inside the shell.

[0019] The fan blades rotate with the rotation of the shaft, which can generate airflow and accelerate the air flow inside the shell, helping to quickly take away the heat generated inside the motor, reduce the operating temperature of the motor, prevent overheating, and cooperate with the setting of the heat dissipation component to further improve the heat dissipation effect.

[0020] Preferably, a plurality of heat dissipation holes are formed at corresponding ends of the shell and the fixing seat.

[0021] By setting the heat dissipation holes, the heat exchange area between the shell and the external environment is increased, which helps the fan blades transfer the heat generated inside the shell to the external environment more quickly, improves the heat dissipation performance of the motor, and helps to reduce the operating temperature of the motor.

[0022] Preferably, an adjustment plate is provided at one end of the spring away from the piston, and a fastener rotatably connected to the adjustment plate is provided on the side wall of the fixed seat, and the fastener is used to adjust the position of the adjustment plate to adjust the elastic force of the spring.

[0023] The elastic force of the spring can be easily adjusted by the cooperation of the adjustment plate and the fastener, so that the user can adjust the elastic force of the spring according to actual needs to meet the use requirements of different media.

[0024] The beneficial effects of the present invention are as follows:

[0025] By arranging heat dissipation components at both ends of the rotor core on the rotating shaft, heat conversion is achieved both inside and outside the rotating shaft. Not only the internal heat generated by the rotor core and the rotating shaft due to electromagnetic action is taken into account, but also the influence of the external environment on the overall temperature of the motor is taken into account, thereby achieving a more comprehensive and efficient heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic diagram of the overall structure of a heat dissipation integrated motor stator and rotor mechanism.

[0027] Figure 2 It is a schematic diagram of the overall side cross-sectional structure of a heat dissipation integrated motor stator and rotor mechanism.

[0028] Figure 3 The figure is a schematic diagram of the heat dissipation component structure of a heat dissipation integrated motor stator and rotor mechanism.

[0029] Figure 4 The figure is a schematic diagram of the cross-sectional structure of a heat dissipation component of a heat dissipation integrated motor stator and rotor mechanism.

[0030] Figure 5 The figure is a schematic diagram of the cross-sectional structure of a mounting tube of a heat dissipation integrated motor stator and rotor mechanism.

[0031] Figure 6 The figure is a schematic diagram of the cross-sectional structure of a fixing seat of a heat dissipation integrated motor stator and rotor mechanism.

[0032] 110, housing; 120, rotor; 210, heat dissipation assembly; 220, fan blades; 230, heat dissipation holes; 310, rotating shaft; 320, rotor core; 410, inner tube; 420, fitting clearance; 430, oil inlet; 440, oil outlet; 450, oil outlet channel; 510, mounting tube; 520, oil storage chamber; 530, first recovery ring groove; 540, first bearing; 550, first oil seal; 560, collecting groove; 570, second recovery ring groove; 580, first oil tank; 590, second oil tank; 610, fixing seat; 620, mounting chamber; 630, piston; 640, spring; 650, connecting channel; 660, second bearing; 670, second oil seal; 680, adjusting plate; 690, fastener. DETAILED DESCRIPTION

[0033] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it. Example

[0034] See also Figure 1-6 The present embodiment provides a heat dissipation integrated motor stator and rotor mechanism, which includes a rotor 120 disposed in a housing 110, the rotor 120 having a rotating shaft 310, a rotor core 320 formed at the rotating shaft 310, and heat dissipation components 210 are provided at both ends of the rotating shaft 310 and the heat dissipation components 210 are used to simultaneously perform heat conversion on the inside and outside of the rotating shaft 310.

[0035] The present invention discloses an integrated heat dissipation motor stator and rotor mechanism, which realizes heat conversion inside and outside the rotating shaft 310 at the same time by arranging heat dissipation components 210 at both ends of the rotor core 320 on the rotating shaft 310. It not only takes into account the internal heat generated by the rotor core 320 and the rotating shaft 310 due to electromagnetic action, but also takes into account the influence of the external environment on the overall temperature of the motor, thereby achieving a more comprehensive and efficient heat dissipation effect.

[0036] See Figures 3 and Figure 4In this embodiment, a cavity is formed in the rotating shaft 310 along the axial direction; an inner tube 410 is formed in the cavity along the axial direction, a fitting gap 420 is formed between the outer wall of the inner tube 410 and the cavity, an oil inlet 430 communicating with the inner tube 410 and an oil outlet channel 450 communicating with the fitting gap 420 are formed at the side wall of the rotating shaft 310, and an oil outlet 440 communicating with the inner tube 410 is formed at one end of the rotating shaft 310.

[0037] The cavity formed inside the rotating shaft 310 and the setting of the inner tube 410 provide a channel for the circulation of the medium, so that the medium can enter the inner tube 410 through the oil inlet 430, and then flow along the axial direction of the inner tube 410, and perform heat exchange through the matching gap 420 between the outer wall of the inner tube 410 and the cavity, so that the internal space of the rotating shaft 310 can be fully utilized for heat conduction, and the heat generated by the rotating shaft 310 and the rotor core 320 can be effectively absorbed and taken away.

[0038] It is understandable that when the medium flows in the fitting gap 420 , it can further exchange heat with the side wall of the rotating shaft 310 , thereby improving the heat dissipation efficiency, so that the medium is discharged through the oil outlet channel 450 and the oil outlet 440 , completing a heat dissipation cycle.

[0039] See Figure 5 In this embodiment, the rotor 120 includes a mounting cylinder 510 which is arranged on the inner wall of the housing 110 and rotatably cooperates with the rotating shaft 310. An oil storage chamber 520 communicating with the oil inlet 430 is formed inside the mounting cylinder 510. First recovery annular grooves 530 are formed on both sides of the oil storage chamber 520. First bearings 540 which are interference fit with the rotating shaft 310 are provided on both sides of the first recovery annular groove 530. A first oil seal 550 is provided on the side of one first bearing 540 away from the oil storage chamber 520. A collecting groove 560 communicating with the oil outlet channel 450 is provided on the side of the other first bearing 540 away from the oil storage chamber 520. Second recovery annular grooves 570 are formed on both sides of the collecting groove 560. A first oil tank 580 communicating with the collecting groove 560 is provided at the mounting cylinder 510. A second oil tank 590 communicating with the oil storage chamber 520 is provided at the mounting cylinder 510.

[0040] The first oil tank 580 and the second oil tank 590 are both used to store heat exchange medium, and the medium may be hydraulic oil.

[0041] The oil storage chamber 520, the first recovery ring groove 530, the first bearing 540, the first oil seal 550, the collecting groove 560, the second recovery ring groove 570, the first oil tank 580 and the second oil tank 590 together form a complete medium cycle, ensuring the effective use of the medium and improving the heat dissipation effect.

[0042] In addition, the provision of the first recovery ring groove 530 and the second recovery ring groove 570 effectively prevents leakage of the medium during the circulation process, thereby ensuring the stability and reliability of the heat dissipation system.

[0043] See Figure 6 In this embodiment, the rotor 120 also includes a fixed seat 610 arranged at the side wall of the shell 110 and rotatably matched with the rotating shaft 310. The fixed seat 610 has an installation cavity 620 that passes through the oil outlet 440. A piston 630 is slidably provided in the installation cavity 620. The piston 630 divides the installation cavity 620 into a pressure relief cavity and an equipment cavity. A spring 640 for connecting to the piston 630 is provided on the inner side wall of the equipment cavity. The spring 640 is used to provide an elastic force to keep the piston 630 pressed against the pressure relief cavity.

[0044] The mounting cavity 620 provided in the fixing seat 610 is connected with the oil outlet 440, providing a channel for the discharge of the medium. The internal pressure is adjusted and released by the movement of the piston 630 to prevent damage to the motor due to excessive pressure.

[0045] By setting the spring 640, an elastic force is provided for the piston 630 to press against the pressure release chamber. When the medium is discharged, the elastic force of the spring 640 can ensure that the piston 630 can respond and move in time, thereby effectively adjusting and releasing the pressure.

[0046] Specifically, when the shaft 310 rotates, the temperature rises. At this time, the medium in the inner tube 410 is heated, causing the volume of the medium to expand, and then it flows out of the extrusion piston 630 through the oil outlet 440 and enters the pressure relief chamber. The medium in the pressure relief chamber flows into the matching gap 420 through the connecting channel 650. The matching gap 420 exchanges heat with the medium in the inner tube 410 and also exchanges heat with the outer wall of the shaft 310 until it enters the collection tank 560 through the oil outlet channel 450, and is then squeezed from the collection tank 560 into the first oil tank 580 for circulation and cooling.

[0047] See Figure 6 In this embodiment, a second bearing 660 which is interference fit with the rotating shaft 310 is provided at the pressure relief chamber, and a second oil seal 670 for sealing the pressure relief chamber is provided at the end of the pressure relief chamber.

[0048] By providing the second oil seal 670, the gap between the pressure relief chamber and the external environment is effectively sealed to prevent leakage of the medium during the discharge process, thereby helping to maintain the integrity and reliability of the heat dissipation system and avoiding motor failure caused by medium leakage.

[0049] See Figure 3 and Figure 6In this embodiment, a connecting channel 650 is formed in the rotating shaft 310 and passes through the pressure relief chamber and the fitting gap 420 . The connecting channel 650 is used to guide the oil inside the inner tube 410 into the fitting gap 420 .

[0050] By providing the connecting passage 650 , the oil inside the inner tube 410 can be smoothly introduced into the fitting gap 420 for heat exchange circulation.

[0051] See Figure 2 and Figure 3 In this embodiment, a fan blade 220 is provided at the rotating shaft 310 , and the fan blade 220 is used to dissipate heat inside the housing 110 .

[0052] The fan blades 220 rotate with the rotation of the shaft 310, which can generate airflow and accelerate the air flow inside the shell 110, which helps to quickly remove the heat generated inside the motor, reduce the operating temperature of the motor, prevent overheating, and cooperate with the setting of the heat dissipation component 210 to further improve the heat dissipation effect.

[0053] See Figure 1 and Figure 2 In this embodiment, a plurality of heat dissipation holes 230 are formed at the corresponding ends of the housing 110 and the fixing base 610 .

[0054] By providing the heat dissipation holes 230, the heat exchange area between the housing 110 and the external environment is increased, which helps the fan blades 220 to transfer the heat generated inside the housing 110 to the external environment more quickly, thereby improving the heat dissipation performance of the motor and helping to reduce the operating temperature of the motor.

[0055] See Figure 6 In this embodiment, an adjustment plate 680 is provided at one end of the spring 640 away from the piston 630, and a fastener 690 rotatably connected to the adjustment plate 680 is provided at the side wall of the fixed seat 610. The fastener 690 is used to adjust the position of the adjustment plate 680 to adjust the elastic force of the spring 640.

[0056] By cooperating with the adjustment plate 680 and the fastener 690 , the elastic force of the spring 640 can be conveniently adjusted, so that the user can adjust the elastic force of the spring 640 according to actual needs to meet the use requirements of different media.

[0057] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0058] The present invention and its implementation methods are described schematically above, and the description is not restrictive. The embodiments shown in the embodiments are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the embodiments and designs a structure and an implementation method similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A heat dissipation integrated motor stator and rotor mechanism, characterized in that: The invention comprises a rotor (120) arranged in a housing (110), wherein the rotor (120) has a rotating shaft (310), and a rotor iron core (320) is formed at the rotating shaft (310); A cavity is formed in the rotating shaft (310) along the axial direction; an inner tube (410) is formed in the cavity along the axial direction; a fitting gap (420) is formed between the outer wall of the inner tube (410) and the cavity; an oil inlet (430) communicating with the inner tube (410) and an oil outlet channel (450) communicating with the fitting gap (420) are formed at the side wall of the rotating shaft (310); and an oil outlet (440) communicating with the inner tube (410) is formed at one end of the rotating shaft (310); The rotor (120) comprises a mounting cylinder (510) disposed on the inner wall of the housing (110) and rotatably engaged with the rotating shaft (310); an oil storage chamber (520) which is in communication with the oil inlet (430) is formed inside the mounting cylinder (510); first recovery annular grooves (530) are formed on both sides of the oil storage chamber (520); first bearings (540) which are interference-fitted with the rotating shaft (310) are disposed on both sides of the first recovery annular groove (530); and one of the first bearings (540) is away from the oil storage chamber. A first oil seal (550) is provided on one side of the first bearing (520); a collecting groove (560) communicating with the oil outlet channel (450) is provided on the other side of the first bearing (540) away from the oil storage chamber (520); second recovery ring grooves (570) are formed on both sides of the collecting groove (560); a first oil tank (580) communicating with the collecting groove (560) is provided at the mounting tube (510); and a second oil tank (590) communicating with the oil storage chamber (520) is provided at the mounting tube (510); The rotor (120) further comprises a fixing seat (610) disposed on a side wall of the housing (110) and rotatably matched with the rotating shaft (310); a mounting cavity (620) penetrating the oil outlet (440) is provided in the fixing seat (610); a piston (630) is slidably provided in the mounting cavity (620); the piston (630) divides the mounting cavity (620) into a pressure relief cavity and an equipment cavity; a spring (640) for connecting to the piston (630) is provided on the inner side wall of the equipment cavity; the spring (640) is used to provide an elastic force for keeping the piston (630) pressed against the pressure relief cavity; A communication channel (650) penetrating the pressure relief chamber and the fitting gap (420) is formed in the rotating shaft (310). The communication channel (650) is used to guide the oil inside the inner tube (410) into the fitting gap (420).

2. The heat dissipation integrated motor stator and rotor mechanism according to claim 1, characterized in that: A second bearing (660) which is interference-fitted with the rotating shaft (310) is provided at the pressure relief chamber, and a second oil seal (670) for sealing the pressure relief chamber is provided at the end of the pressure relief chamber.

3. The heat dissipation integrated motor stator and rotor mechanism according to claim 1, characterized in that: The rotating shaft (310) is provided with a fan blade (220), and the fan blade (220) is used to dissipate heat inside the housing (110).

4. The heat dissipation integrated motor stator and rotor mechanism according to claim 1, characterized in that: A plurality of heat dissipation holes (230) are formed at corresponding ends of the housing (110) and the fixing seat (610).

5. The heat dissipation integrated motor stator and rotor mechanism according to claim 1, characterized in that: An adjustment plate (680) is provided at one end of the spring (640) away from the piston (630), and a fastener (690) rotatably connected to the adjustment plate (680) is provided on the side wall of the fixed seat (610). The fastener (690) is used to adjust the position of the adjustment plate (680) to adjust the elastic force of the spring (640).

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