A water-cooled motor

Abstract

The present application relates to the technical field of brushed DC motors, and relates to a water-cooled motor, comprising a motor body, a plurality of hollow cavities arranged on the outer shell of the motor body, two annular cavities respectively arranged at the two ends of the outer shell of the motor body, a plurality of water inlets arranged on the motor body near its own head, and a plurality of water outlets arranged on the motor body away from its own head; the annular cavity is provided with a circle with the axis of the rotating shaft of the motor body as the axial direction, a plurality of the hollow cavities are connected to the annular cavity, the water inlet is connected to the annular cavity near the motor body head, the water outlet is connected to the annular cavity away from the head, and the water inlet of the motor body is connected to the existing condensate supply device. The present application has the effect of improving the fan cooling which can only cool the outer shell of the brushed DC motor, and the temperature inside it is still very high.

Description

Technical Field

[0001] The present application relates to the technical field of brushed DC motors, and in particular to a water-cooled motor. Background Art

[0002] A brushed DC motor is a DC motor. The stator of the brushed motor is equipped with fixed main magnetic poles and brushes, and the rotor is equipped with armature windings and commutators. The stator generates a static magnetic field, which surrounds the rotor. The output shaft of the brushed DC motor has two arc-shaped copper sheets called commutator segments. When the motor rotates, the carbon brushes slide on the commutator, and the electric energy of the DC power supply enters the armature winding through the brushes and commutator to generate armature current. The magnetic field generated by the armature current interacts with the main magnetic field to generate electromagnetic torque, causing the motor to rotate and drive the load. In the previous development process of brushed DC motors, the motor temperature rise is generally around 110K, which is close to the required 115K or less. However, under the condition of high voltage (+10% of the rated voltage) of the water cooling method, the temperature rise is around 60-70K, and the effect is more obvious.

[0003] For example, the Chinese utility model patent with authorization announcement number CN210246547U discloses a brushed DC motor, including a stator, an end cover, a rotor and a circuit board body. The circuit board body includes a chip rectifier and a thermistor, the circuit board body is sleeved on the end cover of the stator, the chip rectifier and the thermistor are respectively mounted on the circuit board body, the chip rectifier and the thermistor are electrically connected, the circuit board body is electrically connected to the brush assembly on the end cover, the circuit board body is provided with a through hole for the brush assembly to pass through, and the rotor is sleeved on the stator.

[0004] With respect to the above-mentioned related technologies, the existing brushed DC motor will reach high temperature during long-term use. Usually, a fan is used to cool the brushed DC motor, but the fan cooling can only cool the outer shell of the brushed DC motor, and the temperature inside the motor is still very high. Summary of the invention

[0005] In order to improve the problem that fan cooling can only cool the outer shell of the brushed DC motor and the temperature inside the motor is still very high, the present application provides a water-cooled motor.

[0006] The water-cooled motor provided in this application adopts the following technical solution:

[0007] A water-cooled motor comprises a motor body, a plurality of hollow cavities arranged on an outer shell of the motor body, two annular cavities respectively arranged at two ends of the outer shell of the motor body, a plurality of water inlets arranged on the motor body near its own head position, and a plurality of water outlets arranged on the motor body away from its own head position; the annular cavity is axially provided with a circle with the axis of the rotating shaft of the motor body as the axis, a plurality of the hollow cavities are connected to the annular cavity, the water inlet is connected to the annular cavity near the motor body head, the water outlet is connected to the annular cavity away from the head, and the water inlet of the motor body is connected to an existing condensate supply device.

[0008] By adopting the above technical solution, the existing condensate supply device injects condensate through the water inlet of the motor body, and the condensate flows into the annular cavity and then into the hollow cavity until it is full, thereby achieving the effect of cooling the motor body. During the long-term use of the motor body, the temperature rise inside the motor body is relatively high, and the condensate provided by the condensate supply device can well control the temperature rise.

[0009] Optionally, a hollow box is provided below the motor body, a circular slot is provided on the top of the hollow box in a vertical direction, and a cooling component is provided on the bottom of the hollow box, the cooling component includes a hollow disc passed through the circular slot on the top of the hollow box, and a cooling fan rotatably installed on the inner bottom surface of the hollow disc; a plurality of air-permeable square holes are evenly penetrated on the top and bottom surfaces of the hollow disc, the hollow disc slides vertically on the top of the hollow box, and the motor body is fixed on the top of the hollow disc.

[0010] By adopting the above technical solution, the water outlet of the motor body guides the condensate to the hydraulic motor through the liquid inlet end of the hydraulic motor, and the rotating shaft of the hydraulic motor drives the cooling fan to rotate, thereby achieving the effect of further cooling the motor body by the cooling fan. The liquid outlet end of the hydraulic motor guides the condensate to the condensate supply device through the liquid inlet end of the condensate supply device, thereby achieving the effect of circulating the condensate.

[0011] Optionally, a driving component for driving the cooling fan to rotate is provided at the bottom of the hollow disc, and the driving component includes a hydraulic motor fixedly mounted on the outer bottom surface of the hollow disc, and the rotating shaft of the hydraulic motor is coaxially connected to the rotating shaft of the cooling fan.

[0012] By adopting the above technical solution, the water outlet of the motor body guides the condensate to the hydraulic motor through the liquid inlet end of the hydraulic motor. The hydraulic motor drives the cooling fan to rotate through its own rotating shaft, thereby achieving the effect of further cooling the motor body by the cooling fan.

[0013] Optionally, the water outlet of the motor body is connected to the liquid inlet end of the hydraulic motor, and the liquid outlet end of the hydraulic motor is connected to the liquid inlet end of the condensate supply device.

[0014] By adopting the above technical solution, the water outlet of the motor body guides the condensate to the hydraulic motor through the liquid inlet end of the hydraulic motor, and the hydraulic motor drives the cooling fan to rotate through its own rotating shaft, thereby achieving the effect of the cooling fan further cooling the motor body. The liquid outlet end of the hydraulic motor guides the condensate to the condensate supply device through the liquid inlet end of the condensate supply device, thereby achieving the effect of the condensate circulating.

[0015] Optionally, a shock-absorbing component is provided on the inner side of the hollow disc, and the shock-absorbing component includes a plurality of spiral straight rods arranged horizontally inside the hollow box, a slider slidably arranged on the circumference of the spiral straight rod along the length direction of the spiral straight rod, and a shock-proof straight rod hingedly arranged between the top of the slider and the hollow disc, and the spiral straight rod is rotatably installed on the corresponding inner wall of the hollow box.

[0016] By adopting the above technical solution, the motor body is vibrated, the motor body drives the hollow disk to vibrate, the hollow disk drives the shock-proof straight rod to vibrate, the shock-proof straight rod drives the slider to slide along the length direction of the spiral straight rod, and the slider is shock-absorbing by the elastic component, so that the hollow disk offsets the vibration of the motor body by vertical sliding, thereby improving the problem of noise generated by the brush DC motor due to vibration and collision with the platform and the ground.

[0017] Optionally, both ends of the spiral straight rod are provided with a plurality of spiral through grooves penetrating the circumference of the spiral straight rod along its own axis as the center of the circle, a spiral through hole is provided on the side of the slider, and a plurality of spiral strips are fixed on the inner circumference of the spiral through hole along the axis of the spiral straight rod as the center of the circle, the spiral strip is a rod-shaped structure with a spiral shape, and the slider is spirally connected to the circumference of the spiral straight rod.

[0018] By adopting the above technical solution, the slider is fixedly installed with a spiral through hole along the length direction of the spiral straight rod, and the inner circumferential surface of the spiral through hole is provided with four spiral strips with the axis of the spiral straight rod as the circumference, and the spiral strip is a rod-shaped structure with a spiral shape, so that the spiral strip is spirally connected to the spiral straight rod through the spiral through hole, that is, the slider is spirally connected to the circumferential side of the spiral straight rod, so as to facilitate the effect of synchronous movement of several spiral straight rods.

[0019] Optionally, a bevel gear 1 is rotatably installed on the inner bottom surface of the hollow box, and a bevel gear 2 is coaxially fixed to the end of several spiral straight rods close to the bevel gear 1, and several bevel gears 2 are meshed with bevel gear 1, and the rotation axis of the bevel gear 1 is vertically arranged.

[0020] By adopting the above technical solution, the motor body is vibrated, the motor body drives the hollow disc to vibrate, the hollow disc drives the anti-vibration straight rod to vibrate, and the anti-vibration straight rod drives the slider to slide along the length direction of the spiral straight rod. Since the four bevel gears 2 are all meshed with the bevel gear 1, the four spiral straight rods rotate synchronously, so that the hollow disc offsets the vibration of the motor body by vertical sliding.

[0021] Optionally, a buffer component is provided in the hollow box, and the buffer component includes a compression spring connected between the slider and the inner wall of the hollow box; a plurality of compression springs are provided corresponding to a plurality of the spiral straight rods, and the compression springs are sleeved on the circumference of the corresponding spiral straight rods.

[0022] By adopting the above technical solution, the slider squeezes the compression spring, and the compression spring deforms, thereby converting the vibration of the motor body into the deformation of the compression spring, reducing the noise generated by the vibration of the motor body. After the motor body is vibrated, the compression spring drives the slider to return to its original position through its own deformation force.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The current condensate supply device injects condensate through the water inlet of the motor body, and the condensate flows into the annular cavity and then into the hollow cavity until it is full, thereby achieving the effect of cooling the motor body. During the long-term use of the motor body, the temperature rise inside the motor body is relatively high. Providing condensate through the condensate supply device can well control the temperature rise.

[0025] 2. The water outlet of the motor body guides the condensate through the liquid inlet end of the hydraulic motor to the hydraulic motor, and the hydraulic motor drives the cooling fan to rotate through its own rotating shaft, so as to achieve the effect of further cooling the motor body by the cooling fan. The liquid outlet end of the hydraulic motor guides the condensate through the liquid inlet end of the condensate supply device to the condensate supply device, realizing the circulation of the condensate.

[0026] 3. The motor body is vibrated, the motor body drives the hollow disc to vibrate, the hollow disc drives the anti-vibration rod to vibrate, and the anti-vibration rod drives the slider to slide along the length direction of the spiral rod. Since the four bevel gears 2 are meshed with the bevel gear 1, the four spiral rods rotate synchronously, so that the hollow disc offsets the vibration of the motor body by vertical sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the water-cooled motor in the embodiment of the present application.

[0028] Figure 2 It is a cross-sectional schematic diagram of the motor body in the embodiment of the present application.

[0029] Figure 3It is a structural schematic diagram of the internal structure of the hollow box in the embodiment of the present application.

[0030] Figure 4 It is an exploded schematic diagram of the internal structure of the hollow disk in the embodiment of the present application.

[0031] Figure numerals: 11, motor body; 12, hollow cavity; 13, annular cavity; 14, water inlet; 15, water outlet; 16, hollow box; 17, circular notch; 18, hollow disc; 19, air-permeable square hole; 20, cooling fan; 21, hydraulic motor; 22, bevel gear one; 23, spiral straight rod; 24, bevel gear two; 25, spiral through groove; 26, slider; 27, spiral through hole; 28, spiral strip; 29, compression spring; 30, shock-proof straight rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Reference Figure 1-3 A water-cooled motor includes a motor body 11. The outer shell of the motor body 11 is provided with a hollow cavity 12. The shape of the hollow cavity 12 is cylindrical. A plurality of hollow cavities 12 are arranged circumferentially with the axis of the rotating shaft of the motor body 11 as the axis. The outer shell of the motor body 11 is provided with an annular cavity 13. The annular cavity 13 is arranged in a circle with the axis of the rotating shaft of the motor body 11 as the axis. The annular cavity 13 is located at both ends of the motor body 11, and a plurality of hollow cavities 12 are connected to the annular cavity 13. The motor body 11 is provided with a plurality of water inlets 14 near the head, and the water inlets 14 are connected to the annular cavity 13 near the head; the motor body 11 is provided with a plurality of water outlets 15 far from the head, and the water outlets 15 are connected to the annular cavity 13 far from the head, so as to achieve the effect of cooling the motor body 11 with condensed water.

[0034] Reference Figure 1-3A hollow box 16 is provided below the motor body 11. A circular notch 17 is provided on the top of the hollow box 16 in a vertical direction. A hollow disc 18 is provided through the circular notch 17. The hollow disc 18 slides vertically on the top of the hollow box 16. A plurality of air-permeable square holes 19 are evenly penetrated on the top and bottom of the hollow disc 18. The motor body 11 is fixed on the top of the hollow disc 18. A cooling fan 20 is rotatably installed on the inner bottom surface of the hollow disc 18. A hydraulic motor 21 is fixed on the outer bottom surface of the hollow disc 18. The rotating shaft of the hydraulic motor 21 is coaxially connected with the rotating shaft of the cooling fan 20, so that the hydraulic motor 21 drives the cooling fan 20 to rotate. The water inlet 14 of the motor body 11 is connected to the liquid outlet of the condensate supply device, the water outlet 15 of the motor body 11 is connected to the liquid inlet of the hydraulic motor 21, and the liquid outlet of the hydraulic motor 21 is connected to the liquid inlet of the condensate supply device.

[0035] Reference Figure 1 , Figure 3 and Figure 4 The inner bottom surface of the hollow box 16 is rotatably mounted with a bevel gear 1 22, and the rotation axis of the bevel gear 1 22 is vertically arranged. A spiral straight rod 23 is horizontally arranged inside the hollow box 16, and four spiral straight rods 23 are arranged with the axis of the bevel gear 1 22 as the axial direction. The four spiral straight rods 23 correspond to the four inner side walls of the hollow box 16 one by one and are perpendicular to each other. The spiral straight rods 23 are rotatably mounted on the corresponding inner side walls of the hollow box 16. The ends of the four spiral straight rods 23 close to the bevel gear 1 22 are coaxially fixed with a bevel gear 24. The four bevel gears 24 are all meshed with the bevel gear 1 22, so as to achieve the effect of synchronous rotation of the four spiral straight rods 23. Four spiral through grooves 25 that penetrate the circumference of the spiral straight rod 23 are opened around the axis of the spiral straight rod 23 at both ends.

[0036] Reference Figure 1 , Figure 3 and Figure 4 , a slider 26 is installed on the circumference of each spiral rod 23, and a spiral through hole 27 is fixedly installed on the slider 26 along the length direction of the spiral rod 23. Four spiral strips 28 are arranged on the inner circumference of the spiral through hole 27 with the axis of the spiral rod 23 as the circumference. The spiral strip 28 is a rod-shaped structure with a spiral shape. The spiral strip 28 is spirally connected to the spiral rod 23 through the spiral through hole 27, that is, the slider 26 is spirally connected to the circumference of the spiral rod 23. A compression spring 29 is fixedly connected to the side of each slider 26 away from the bevel gear. The end of the compression spring 29 away from the slider 26 is fixedly connected to the inner wall of the hollow box 16, and the compression spring 29 is sleeved on the circumference of the spiral rod 23. The top surfaces of the four sliders 26 are hinged with anti-vibration straight rods 30, and one end of the anti-vibration straight rod 30 away from the slider 26 is hinged to the bottom of the hollow disc 18 to try to avoid the vibration of the motor body 11 and generate noise.

[0037] The implementation principle of a water-cooled motor disclosed in the embodiment of the present application is as follows: the existing condensate supply device injects condensate through the water inlet 14 of the motor body 11, and the condensate flows into the annular cavity 13 and then flows into the hollow cavity 12 until it is full, thereby achieving the effect of cooling the motor body 11. During the long-term use of the motor body 11, the temperature rise inside the motor body 11 is relatively high. Providing condensate through the condensate supply device can well control the temperature rise. The water outlet 15 of the motor body 11 guides the condensate to the hydraulic motor 21 through the liquid inlet end of the hydraulic motor 21, and the hydraulic motor 21 drives the cooling fan 20 to rotate through its own rotating shaft, thereby achieving the effect of the cooling fan 20 further cooling the motor body 11. The liquid outlet end of the hydraulic motor 21 guides the condensate to the condensate supply device through the liquid inlet end of the condensate supply device, thereby achieving the effect of the circulation of the condensate.

[0038] The motor body 28 is vibrated, and the motor body 28 drives the hollow disc 18 to vibrate, and the hollow disc 18 drives the anti-vibration straight rod 25 to vibrate, and the anti-vibration straight rod 25 drives the slider 26 to slide along the length direction of the spiral straight rod 23. Since the four bevel gears 24 are all meshed with the bevel gear 1 22, the four spiral straight rods 23 rotate synchronously, so that the hollow disc 18 offsets the vibration of the motor body 11 by vertical sliding. The slider 26 squeezes the compression spring 22, and the compression spring 22 is deformed, thereby converting the vibration of the motor body 28 into the deformation of the compression spring 22, reducing the noise generated by the vibration of the motor body 28. After the motor body 28 stops vibrating, the compression spring 22 drives the slider 26 to return to its original position through its own deformation force.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water-cooled motor, characterized in that: The invention comprises a motor body (11), a plurality of hollow cavities (12) arranged on the outer shell of the motor body (11), two annular cavities (13) respectively arranged on the two ends of the outer shell of the motor body (11), a plurality of water inlets (14) arranged on the motor body (11) close to the head thereof, and a plurality of water outlets (15) arranged on the motor body (11) away from the head thereof; the annular cavity (13) is provided with a circle with the axis center of the rotating shaft of the motor body (11) as the axial direction, if The hollow cavities (12) are connected to the annular cavities (13); the water inlet (14) is connected to the annular cavity (13) near the head of the motor body (11); the water outlet (15) is connected to the annular cavity (13) far from the head; the water inlet (14) of the motor body (11) is connected to an existing condensate supply device; a hollow box (16) is provided below the motor body (11); a circular notch (17) is provided on the top of the hollow box (16) in a vertical direction; A cooling component is provided at the bottom of the hollow box (16), and the cooling component comprises a hollow disc (18) which is inserted through a circular notch (17) at the top of the hollow box (16), and a cooling fan (20) which is rotatably mounted on the inner bottom surface of the hollow disc (18); a plurality of air-permeable square holes (19) are evenly penetrated through the top and bottom surfaces of the hollow disc (18); the hollow disc (18) slides vertically on the top of the hollow box (16), and the motor body (11) is fixed on the top of the hollow disc (18). The bottom of the hollow disc (18) is provided with a driving component for driving the cooling fan (20) to rotate, the driving component comprising a hydraulic motor (21) fixedly mounted on the outer bottom surface of the hollow disc (18), the rotating shaft of the hydraulic motor (21) being coaxially connected with the rotating shaft of the cooling fan (20); the water outlet (15) of the motor body (11) is connected with the liquid inlet end of the hydraulic motor (21), and the liquid outlet end of the hydraulic motor (21) is connected with the liquid inlet end of a condensate supply device.

2. The water-cooled motor according to claim 1, characterized in that: A shock absorbing component is provided on the inner side of the hollow disc (18), and the shock absorbing component comprises a plurality of spiral straight rods (23) arranged inside the hollow box (16) along a horizontal direction, a slider (26) slidably arranged on the circumference of the spiral straight rod (23) along the length direction of the spiral straight rod (23), and a shock-proof straight rod (30) hingedly arranged between the top of the slider (26) and the hollow disc (18), and the spiral straight rod (23) is rotatably mounted on the corresponding inner side wall of the hollow box (16).

3. The water-cooled motor according to claim 2, characterized in that: Both ends of the spiral straight rod (23) are provided with a plurality of spiral through grooves (18) penetrating the circumference of the spiral straight rod (23) around its own axis; a spiral through hole (20) is provided on the side of the slider (26); a plurality of spiral long strips (21) are fixed around the inner circumference of the spiral through hole (20) around the axis of the spiral straight rod (23); the spiral long strip (21) is a rod-shaped structure in a spiral shape; and the slider (26) is spirally connected to the circumference of the spiral straight rod (23).

4. The water-cooled motor according to claim 2, characterized in that: A bevel gear 1 (22) is rotatably mounted on the inner bottom surface of the hollow box (16); a plurality of spiral straight rods (23) are coaxially fixed with a bevel gear 2 (24) at the end close to the bevel gear 1 (22); a plurality of bevel gears 2 (24) are meshed with the bevel gear 1 (22); and the rotation axis of the bevel gear 1 (22) is vertically arranged.

5. The water-cooled motor according to claim 2, characterized in that: A buffer component is provided in the hollow box (16), and the buffer component includes a compression spring (29) connected between the slider (26) and the inner wall of the hollow box (16); a plurality of compression springs (29) are provided corresponding to a plurality of the spiral straight rods (23), and the compression springs (29) are sleeved on the circumference of the corresponding spiral straight rods (23).

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