Efficient heat dissipation type direct drive motor structure

Abstract

The utility model discloses an efficient heat dissipation type direct drive motor structure, which comprises a shell, a water cooling assembly, a rotating shaft, a stator iron core, a stator coil, a rotor and a fan, the water cooling assembly is arranged on the shell and applies water to the interior of the shell, the rotating shaft is movably arranged in the shell, the stator iron core is attached to the inner wall of the shell, and the fan is arranged on the inner wall of the shell. The water cooling assembly is arranged at the top of the shell, the fixed seat is arranged at the top of the shell, the connecting pipe, the water bucket, the speed regulating valve and the pipe head are matched, the water cooling assembly is arranged on the water cooling assembly, the water cooling assembly is arranged on the water cooling assembly, the water cooling assembly is arranged on the water cooling assembly, and the water cooling assembly is arranged on the water cooling assembly. And water can be conveyed into the shell. The speed regulating valve can regulate the water flow speed according to the actual operation state and the heating condition of the motor, and the cooling water amount is accurately controlled. And the pipe head drips water to directly cool key heating parts in the motor, so that heat can be quickly taken away, and the overall temperature of the motor is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically relating to a high-efficiency heat dissipation direct drive motor structure. Background Technology

[0002] Direct-drive permanent magnet motors offer higher power-to-weight ratios, enable direct-drive control, and are smaller in size, thus providing greater advantages in use. Furthermore, their speed and braking performance are excellent, which is one of the main reasons for their popularity in the market. However, heat dissipation has always been a major concern in the industry. Direct-drive permanent magnet motors generate significant heat during operation, and if not effectively cooled, the permanent magnets are prone to demagnetization, affecting the motor's lifespan.

[0003] Chinese patent document CN20202184598.1 discloses a novel high-efficiency heat dissipation permanent magnet motor, which includes a permanent magnet motor body; a housing disposed outside the permanent magnet motor body; a motor shaft disposed inside the permanent magnet motor body and extending outside the housing; a heat-absorbing sleeve fixedly sleeved on the outer wall of the permanent magnet motor body; a heat-absorbing coil wound around the heat-absorbing sleeve; a water pump fixedly installed on the top of the housing; and a drain pipe fixedly installed on the drain outlet of the water pump, with one end of the drain pipe away from the water pump extending into the housing and fixedly connected to the heat-absorbing coil.

[0004] In the aforementioned permanent magnet motor structure, the permanent magnet motor body is housed within a casing. Heat is absorbed by coils wound around the permanent magnet motor body, and then dissipated using water cooling. Simultaneously, air is blown into the casing through heat dissipation fins. In other words, the entire heat dissipation process is aimed at cooling the permanent magnet motor body. However, under normal circumstances, it is difficult for internal heat to be quickly conducted to the permanent magnet motor body. Therefore, heat still accumulates inside, significantly impacting the permanent magnet. Thus, a change is needed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency heat dissipation direct drive motor structure. The technical problem to be solved is that most direct drive motors in the prior art first collect internal heat and then dissipate it through a fan.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a high-efficiency heat dissipation direct drive motor structure, including a housing, a water-cooling assembly, a rotating shaft, a stator core, stator coils, a rotor, and a fan. The water-cooling assembly is disposed on the housing and applies water to its interior. The rotating shaft is movably disposed inside the housing. The stator core is disposed against the inner wall of the housing. The stator coils are disposed on the stator core. The rotor is axially disposed on the rotating shaft. The fan is disposed at the end of the rotating shaft to accelerate the airflow speed inside the housing for heat dissipation.

[0008] By installing a water-cooling component with a fixed base on the top of the casing, and coordinating with connecting pipes, a water tank, a speed control valve, and a pipe head, water can be delivered into the casing. The speed control valve can adjust the water flow rate according to the actual operating status and heat generation of the motor, achieving precise control of the cooling water volume. Water drips from the pipe head, directly cooling and lowering the temperature of key heat-generating components inside the motor, quickly removing heat and reducing the overall temperature of the motor.

[0009] Optionally, the stator core is configured as a hollow multi-prism structure, and the outer wall of the stator core is fixed to the housing with a gap. The outer circumference of the rotor is provided with a number of slots to accelerate the internal airflow speed. By configuring the stator core as a hollow multi-prism structure with a gap between it and the housing, the airflow space is increased, which helps the air to circulate more smoothly inside the motor and improves the air cooling effect.

[0010] Optionally, the rotor is set on the center line of the stator core, and the two ends of the rotating shaft extend to the outer end. The two ends of the rotating shaft are also provided with impellers for accelerating the internal airflow. By setting impellers, the airflow inside the motor is further promoted, and the air-cooling heat dissipation efficiency is enhanced.

[0011] Optionally, the water-cooling assembly includes a fixed base, a connecting pipe, a speed regulating valve, a water tank, and a pipe head. The fixed base is located on the top of the housing, and the connecting pipe is fixed upward on the fixed base. The water tank, filled with water, is located at the end of the connecting pipe. The speed regulating valve is connected to the connecting pipe to adjust the flow rate through the connecting pipe. The pipe head is located inside the housing and communicates with the connecting pipe, allowing water to drip down. The water tank is drained out by the pipe head, and the speed regulating valve is used to change the water flow rate in conjunction with the rotor rotation speed.

[0012] Optionally, the water-cooling assembly also includes a fixing box, which is attached to the inner top wall of the stator core. At least two tube heads are provided on the fixing box, and the opening of each tube head is symmetrical to the area passed by the rotor, so that water droplets fall onto the rotor. By setting multiple tube heads and facing the rotor, the rotation of the rotor can accelerate the drying of surface water, thereby achieving heat dissipation.

[0013] Optionally, the outer periphery of the rotor is provided with an annular groove formed on the contact surface, and the inside of the rotor is provided with a central chamber for water supply. The central chamber is provided with several through grooves that communicate with the annular groove to allow water to flow out. The annular groove allows water to flow from the central chamber to the rotor. The high-speed rotation of the rotor accelerates the outflow of water in the through grooves, thereby achieving water evaporation and heat dissipation.

[0014] Optionally, the rotating shaft is axially movably provided with a conveying pipe that communicates with the central chamber, and the end of the conveying pipe is provided with a water supply device.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This utility model's high-efficiency heat dissipation direct-drive motor structure utilizes a water-cooling component mounted on a fixed base at the top of the casing. Through the coordination of connecting pipes, a water tank, a speed control valve, and a pipe head, water can be delivered into the casing. The speed control valve adjusts the water flow rate according to the motor's actual operating status and heat generation, achieving precise control of the cooling water volume. Water drips from the pipe head, directly cooling the critical heat-generating components inside the motor, quickly removing heat and lowering the overall motor temperature.

[0017] 2. The high-efficiency heat-dissipating direct-drive motor structure of this utility model uses pipe heads to allow water to flow out of the bucket. A speed regulating valve is used to change the water flow speed according to the rotor rotation speed. By setting multiple pipe heads and pointing them towards the rotor, the rotation of the rotor accelerates the drying of surface water, thereby achieving heat dissipation. An annular groove allows water in the central chamber to flow out of the rotor. The high-speed rotation of the rotor accelerates the flow of water out of the groove, achieving water evaporation and heat dissipation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model;

[0020] Figure 3 This is an exploded structural diagram of the rotor-related structure of this utility model;

[0021] Figure 4 This is a partial half-sectional structural diagram of the present invention;

[0022] Figure 5 This is a schematic diagram of the rotor structure in Embodiment 2 of this utility model;

[0023] Figure 6 This is a schematic diagram of the rotor half-section structure of Embodiment 2 of this utility model.

[0024] In the diagram: 1-Base, 2-House, 3-Water-cooling assembly, 31-Fixed seat, 32-Connecting pipe, 33-Speed ​​control valve, 34-Water tank, 35-Fixed box, 36-Pipe head, 4-Shaft, 5-Stator core, 6-Stator coil, 7-Rotor, 71-Annular groove, 72-Through groove, 73-Central chamber, 74-Conveying pipe, 8-Impeller, 9-Baffle plate, 10-Fan, 11-Bearing, 12-Fixed block. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example 1

[0026] like Figures 1 to 4 As shown, a high-efficiency heat-dissipating direct-drive motor structure is provided, including a frame 1, a housing 2, a water-cooling assembly 3, a rotating shaft 4, a stator core 5, a stator coil 6, a rotor 7, and a fan 10. The housing 2 is fixed to the top of the frame 1 by welding technology in the prior art. The water-cooling assembly 3 is located on the top of the housing 2 and circulates water inside the housing 2. The rotating shaft 4 is located on the center line inside the housing 2. The stator core 5 is located inside the housing 2. The stator coil 6 is wound on the stator core 5. The rotor 7 is axially fixed to the rotating shaft 4 and sleeved inside the stator core 5. The fan 10 is located at the end of the rotating shaft 4 and drives the fan 10 to rotate.

[0027] When the motor starts, the stator coil 6 is energized and interacts with the permanent magnet of the rotor 7 to generate driving force, causing the rotor 7 to rotate. At the same time, the fan 10 rotates synchronously under the action of the shaft 4. When it is necessary to cool the inside of the housing 2, water is injected into the housing 2 through the water cooling component 3. Under the action of the fan 10, the internal air circulation speed is accelerated, and the water evaporates, thereby achieving internal heat dissipation.

[0028] refer to Figure 2 and Figure 3 As shown, in this embodiment, impellers 8 are fixed at both ends of the rotor 7 on the rotating shaft 4. The fan-shaped area formed by the rotation of the impellers 8 in the cross-section includes the inner diameter of the stator core 5. In this embodiment, a fan 10 is also fixedly installed at one end of the rotating shaft 4. The fan 10 is preferably a direct application of existing products. A partition 9 is fixedly installed between the fan 10 and one of the impellers 8. The area of ​​the partition 9 is preferably adapted to the circumference of the rotor 7. In this embodiment, bearings 11 of the prior art are also fixed at both ends of the rotating shaft 4. The outer circumferential surface of the bearing 11 is fixedly connected to the housing 2.

[0029] When in use, the rotating shaft 4 rotates, driving the fan 10 on it. The fan 10 rotates to generate airflow, which flows in the gap between the rotor 7 and the stator core 5 to achieve surface heat dissipation and cooling. Water is added to the inside of the water-cooling component 3, and the internal airflow is accelerated by the fan 10 and the impeller 8 to achieve rapid water loss and absorb internal heat, thus achieving efficient cooling and heat dissipation.

[0030] refer to Figure 1 and Figure 4 As shown, in this embodiment, the stator core 5 is preferably a hollow multi-prism structure, wherein the stator core 5 is sleeved in the housing 2, and a plurality of fixing blocks 12 are fixedly welded to the side of the stator core 5 on the housing 2, wherein each fixing block 12 is fixedly connected to the outer wall of the stator core 5. In use, by selecting the stator core 5 as a multi-prism structure and fixing it with fixing blocks 12, the stability is increased, and the gap on the side increases the air flow speed between the housing 2 and the stator core 5 under the action of the fan 10, thereby achieving efficient heat dissipation.

[0031] refer to Figure 1 and Figure 4 As shown, in this embodiment, the water-cooling component 3 includes a fixing base 31, which is a disc structure fixedly welded to the top of the housing 2. A connecting pipe 32 is vertically installed and connected to the top of the fixing base 31. A water tank 34 is connected and sealed at the end of the connecting pipe 32. A speed regulating valve 33, which can realize water flow regulation in the prior art, is installed on the connecting pipe 32. In this embodiment, a fixing box 35 is welded to the inner wall of the stator core 5. Several pipe heads 36 are arrayed on the fixing box 35. In this embodiment, the water inlet of each pipe head 36 is connected to the connecting pipe 32 through a flexible hose in the prior art (not shown in the figure).

[0032] In use, a water-filled bucket 34 is installed on the connecting pipe 32. The top of the bucket 34 can be provided with a water inlet for adding water. The amount of water entering the connecting pipe 32 can be adjusted by rotating the speed regulating valve 33. The water flows into the pipe head 36 and drips down. Under its own gravity, it falls onto the surface of the rotor 7. The high-speed rotation of the rotor 7 throws the water droplets out. At the same time, the fan 10 at the end rotates to accelerate the evaporation of the water droplets, realizing the combination of air cooling and water cooling, and accelerating the heat dissipation of the rotor 7 surface. It should be noted that the pipe head 36 in this embodiment is preferably a multi-hole conical pipe head in the prior art. In this embodiment, the pipe head 36 can also be replaced with a multi-hole nozzle in the prior art. Then, the water bucket 34 is connected to a water pump in the prior art to realize the spray cooling of the inside of the shell 2 through the multi-hole nozzle. Example 2

[0033] like Figure 5 and Figure 6 As shown, based on Embodiment 1, the present invention can also be designed as follows:

[0034] Three annular grooves 71 are spaced apart on the outer periphery of the rotor 7. A cylindrical central chamber 73 is formed inside the rotor 7. Several through grooves 72 are formed in the central chamber 73 to connect the annular grooves 71 and the central chamber 73. In this embodiment, a conveying pipe 74 is sleeved and fixed at one end of the rotating shaft 4 and connected to the central chamber 73. The outer periphery of the conveying pipe 74 is sealed by bearings and sealing rings in the prior art. At the same time, the conveying pipe 74 in this embodiment is connected to a water conveying device in the prior art, which can be a water pump in the prior art.

[0035] In use, the delivery pipe 74 delivers water to the central chamber 73 through an external water supply device. When the rotor 7 rotates, the water enters the through groove 72 through the central chamber 73 under the action of centrifugal force, and is thrown out under the action of the through groove 72, so that the water is thrown into the gap between the stator core 5 and the rotor 7 or onto the stator core 5. At the same time, combined with the water cooling component 3, bidirectional water cooling is achieved. In addition, combined with the fan 10, the internal air circulation speed is increased, and the water evaporation is accelerated, thereby achieving efficient heat dissipation.

[0036] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present utility model.

Claims

1. A high-efficiency heat dissipation direct-drive motor structure, characterized in that: The device includes a housing (2), a water-cooling assembly (3), a rotating shaft (4), a stator core (5), a stator coil (6), a rotor (7), and a fan (10). The water-cooling assembly (3) is installed on the housing (2) to apply water to its interior. The rotating shaft (4) is movably installed inside the housing (2). The stator core (5) is fitted against the inner wall of the housing (2). The stator coil (6) is installed on the stator core (5). The rotor (7) is axially installed on the rotating shaft (4). The fan (10) is installed at the end of the rotating shaft (4) to accelerate the airflow speed inside the housing (2) for heat dissipation.

2. The high-efficiency heat dissipation direct drive motor structure according to claim 1, characterized in that: The stator core (5) is configured as a hollow multi-prism structure. The outer wall of the stator core (5) is fixed to the housing (2) with a gap. The outer periphery of the rotor (7) is provided with a number of slots for accelerating the internal airflow speed.

3. The high-efficiency heat dissipation direct drive motor structure according to claim 2, characterized in that: The rotor (7) is located on the center line of the stator core (5), and the two ends of the shaft (4) extend to the outer end. The two ends of the shaft (4) are also provided with impellers (8) for accelerating the internal airflow.

4. The high-efficiency heat dissipation direct-drive motor structure according to claim 1, characterized in that: The water-cooling assembly (3) includes a fixed base (31), a connecting pipe (32), a speed regulating valve (33), a water bucket (34), and a pipe head (36). The fixed base (31) is located on the top of the housing (2). The connecting pipe (32) is fixedly mounted upward on the fixed base (31). The water bucket (34) is filled with water and located at the end of the connecting pipe (32). The speed regulating valve (33) is connected to the connecting pipe (32) to regulate the flow rate through the connecting pipe (32). The pipe head (36) is located inside the housing (2) and communicates with the connecting pipe (32) to drip water out.

5. The high-efficiency heat dissipation direct drive motor structure according to claim 4, characterized in that: The water-cooling assembly (3) also includes a fixing box (35), which is attached to the inner top wall of the stator core (5). There are at least two tube heads (36) set on the fixing box (35). The opening of each tube head (36) is symmetrical to the area passed by the rotor (7), so that water droplets fall on the rotor (7).

6. The high-efficiency heat dissipation direct-drive motor structure according to claim 5, characterized in that: The rotor (7) has an annular groove (71) on its outer periphery that fits the surface. The rotor (7) has a central chamber (73) for water supply inside. The central chamber (73) has several through grooves (72) that communicate with the annular groove (71) to allow water to flow out.

7. The high-efficiency heat dissipation direct-drive motor structure according to claim 6, characterized in that: The rotating shaft (4) is axially movably provided with a delivery pipe (74) that communicates with the central chamber (73), and the end of the delivery pipe (74) has a water supply device.

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