Stable heat dissipation type permanent magnet direct drive motor

Abstract

The utility model discloses a kind of stable heat dissipation type permanent magnet direct drive motor, belong to motor technical field.This kind of stable heat dissipation type permanent magnet direct drive motor, including main body and auxiliary mechanism, main body includes permanent magnet direct drive motor body, the one end of permanent magnet direct drive motor body is installed with connecting seat, the inside center of connecting seat is rotatably connected with first docking disc, the one end of first docking disc is connected with the drive shaft of permanent magnet direct drive motor body;Auxiliary mechanism includes shell, shell is installed on the one end outside of connecting seat by bolt, the inside rotatably connected with retainer of shell, the center of retainer rotatably inserts fan blade, the center of fan blade movably inserts connecting rod, the both ends of connecting rod are respectively sleeved with second docking disc and third docking disc, the inside one side of shell is fixedly installed with high-temperature-resistant servo motor, the output end of high-temperature-resistant servo motor is sleeved with fourth docking disc, the utility model, can effectively improve the practicality of permanent magnet direct drive motor, with higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a stable heat dissipation type permanent magnet direct drive motor. Background Technology

[0002] Permanent magnet direct drive motors, due to their direct connection to the load and reduction of intermediate structures, greatly improve energy efficiency and are gradually becoming an important choice for drive equipment.

[0003] Currently, some permanent magnet direct drive motors rely on fans installed at the rear of the motor for cooling during operation. These fans are directly connected to the end of the motor's drive shaft, and their speed depends entirely on the drive shaft's speed; these permanent magnet direct drive motors are self-cooling motors. However, because the fan is connected to the motor's drive shaft, its speed changes with the drive shaft's rotation. At low speeds, this not only reduces overall cooling capacity but also causes uneven heat dissipation within the motor. The portion of the motor closer to the fan still experiences some airflow, resulting in relatively better cooling; however, areas further from the fan have extremely slow airflow, making it difficult to effectively dissipate heat and creating localized high-temperature zones. This localized overheating causes uneven thermal expansion of the motor components, leading to concentrated mechanical stress, increased motor vibration and noise, and in severe cases, even friction between the rotor and stator, damaging the motor's core components. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing synchronous reluctance motors rely on a fan installed at the rear of the permanent magnet direct drive motor body for self-cooling during operation. The fan is directly connected to the end of the drive shaft of the permanent magnet direct drive motor body, and the fan speed depends entirely on the drive shaft speed. To address this problem, a stable heat dissipation permanent magnet direct drive motor is proposed, comprising a main body and an auxiliary mechanism. The main body includes a permanent magnet direct drive motor body, with a connecting seat installed at one end. A first mating plate is rotatably connected to the center of the connecting seat, and one end of the first mating plate is connected to the drive shaft of the permanent magnet direct drive motor body. The auxiliary mechanism includes a housing, which is bolted to the outside of one end of the connecting seat. A retainer is rotatably connected inside the housing, with a fan blade rotatably inserted at the center of the retainer. A connecting rod is movably inserted at the center of the fan blade, with a second mating plate and a third mating plate respectively fitted at both ends of the connecting rod. A high-temperature resistant servo motor is fixedly installed on one side of the housing, with a fourth mating plate fitted at the output end of the high-temperature resistant servo motor. The second and third mating plates can be used for frictional connection with the first and fourth mating plates, respectively.

[0005] In this embodiment, the main connecting seat and the first docking plate provide an installation base for the auxiliary mechanism. Through the frictional connection between the first and second docking plates, the power of the permanent magnet direct drive motor can be transmitted to the fan blades, achieving active heat dissipation. The high-temperature servo motor of the auxiliary mechanism, through the frictional connection between the fourth and third docking plates, can independently drive the fan blades to rotate. When the speed of the permanent magnet direct drive motor decreases, the high-temperature servo motor can assist in cooling the interior of the permanent magnet direct drive motor, meeting the heat dissipation requirements under different operating conditions and improving heat dissipation flexibility. The adjusting seat and the connecting rod are rotatably connected, providing a hinge fulcrum for the electric telescopic rod. The extension and retraction of the electric telescopic rod can push the adjusting seat to move the connecting rod along the fan blade axis, thereby moving the connecting rod inside the fan blade. When the first and second mating discs are in frictional connection, the drive shaft of the permanent magnet direct drive motor drives the fan blade to rotate. When the third and fourth mating discs are in frictional connection, the high-temperature resistant servo motor drives the fan blade to rotate. The silicone anti-slip pad increases the friction coefficient between the mating discs, ensuring the stability and reliability of power transmission and preventing heat dissipation failure due to slippage. At the same time, the silicone material has high temperature resistance and cushioning properties, which can reduce wear and vibration between the mating discs and improve the service life of the mechanism.

[0006] In a preferred embodiment of the present invention, the inner ring of the fan blade is provided with several sliding grooves, and the outer side of the connecting rod is provided with several sliding strips. The sliding grooves and sliding strips are slidably connected. The sliding fit between the sliding grooves and sliding strips allows the connecting rod to move along the axial direction of the fan blade, while ensuring that the fan blade rotates synchronously with the connecting rod. This facilitates the adjustment of the fan blade's driving mode according to the rotational speed of the permanent magnet direct drive motor body.

[0007] In a preferred embodiment of the present invention, an adjusting seat is rotatably fitted onto one end of the connecting rod near the third mating plate. Both ends of the adjusting seat are fixedly fitted with first movable seats. The adjusting seat is rotatably connected to the connecting rod, providing a hinge fulcrum for the electric telescopic rod. The extension and retraction of the electric telescopic rod can push the adjusting seat to move the connecting rod along the fan blade axis, thereby causing the connecting rod to move inside the fan blade. This results in the permanent magnet direct drive motor's drive shaft driving the fan blade to rotate when the first mating plate and the second mating plate are in frictional connection, and the high-temperature servo motor driving the fan blade to rotate when the third mating plate and the fourth mating plate are in frictional connection.

[0008] In a preferred embodiment of the present invention, a second movable seat is fixedly installed on both sides of the interior of the housing. An electric telescopic rod is hinged to the interior of each of the second movable seats via a pin. The other end of each electric telescopic rod is hinged to the interior of the first movable seat via a pin. The electric telescopic rod converts the telescopic motion into the axial displacement of the connecting rod through the hinged first and second movable seats, facilitating frictional connection between its two ends and the first or fourth mating plate.

[0009] In a preferred embodiment of the present invention, a plurality of ventilation holes are provided at one end of the housing, and a filter screen is installed inside the housing on one side of the plurality of ventilation holes. The ventilation holes provide an air circulation channel, and the filter screen can filter dust and impurities in the air, preventing foreign objects from entering the permanent magnet direct drive motor body and affecting heat dissipation or causing mechanical damage, ensuring the long-term stable operation of the heat dissipation system, and extending the service life of the permanent magnet direct drive motor body.

[0010] In a preferred embodiment of the present invention, the connecting base has several heat dissipation holes inside, which are connected to the interior of the permanent magnet direct drive motor body. The heat dissipation holes connect the interior and exterior of the permanent magnet direct drive motor body, and together with the airflow generated by the fan blades, form an efficient heat dissipation path, which quickly removes the heat generated by the permanent magnet direct drive motor body during operation, avoids performance degradation or failure of the permanent magnet direct drive motor body due to excessive temperature, and improves the stability and reliability of the permanent magnet direct drive motor body.

[0011] In a preferred embodiment of the present invention, silicone anti-slip pads are fixedly installed on the outer sides of the first, second, third, and fourth docking plates. The silicone anti-slip pads increase the coefficient of friction between the docking plates, ensuring the stability and reliability of power transmission and preventing heat dissipation failure due to slippage. At the same time, the silicone material has high temperature resistance and cushioning properties, which can reduce wear and vibration between the docking plates and improve the service life of the mechanism.

[0012] In a preferred embodiment of the present invention, a controller is installed on one side of the permanent magnet direct drive motor body. The controller can integrate and control the operating parameters of the permanent magnet direct drive motor body and the high-temperature resistant servo motor. Based on the speed parameters of the permanent magnet direct drive motor body, the controller automatically adjusts the driving mode of the fan blades to improve the heat dissipation effect on the permanent magnet direct drive motor body.

[0013] The advantages of this utility model compared with the prior art are:

[0014] The main connecting seat and the first docking plate provide the mounting base for the auxiliary mechanism. Through the frictional connection between the first and second docking plates, the power of the permanent magnet direct drive motor can be transmitted to the fan blades, achieving active heat dissipation. The high-temperature servo motor of the auxiliary mechanism, through the frictional connection between the fourth and third docking plates, can independently drive the fan blades to rotate. When the speed of the permanent magnet direct drive motor decreases, the high-temperature servo motor can assist in cooling the interior of the permanent magnet direct drive motor, meeting the heat dissipation requirements under different working conditions and improving heat dissipation flexibility. The adjusting seat and connecting rod are rotatably connected, providing a hinge fulcrum for the electric telescopic rod. The extension and retraction of the telescopic rod can push the adjusting seat to move the connecting rod along the fan blade axis, thereby moving the connecting rod inside the fan blade. When the first and second mating discs are in frictional connection, the drive shaft of the permanent magnet direct drive motor drives the fan blade to rotate. When the third and fourth mating discs are in frictional connection, the high-temperature resistant servo motor drives the fan blade to rotate. The silicone anti-slip pad increases the coefficient of friction between the mating discs, ensuring the stability and reliability of power transmission and preventing heat dissipation failure due to slippage. At the same time, the silicone material has high temperature resistance and cushioning properties, which can reduce wear and vibration between the mating discs and improve the service life of the mechanism. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the stable heat dissipation type permanent magnet direct drive motor disclosed in the embodiments of this utility model. Figure 1 ;

[0016] Figure 2 This is a three-dimensional structural diagram of the stable heat dissipation type permanent magnet direct drive motor disclosed in the embodiments of this utility model. Figure 2 ;

[0017] Figure 3 This is a three-dimensional structural diagram of the internal structure of the housing of the stable heat dissipation type permanent magnet direct drive motor disclosed in an embodiment of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the connecting rod and fan blades of the stable heat dissipation type permanent magnet direct drive motor disclosed in an embodiment of the present utility model.

[0019] Figure 5 This is a top view of the connecting rod and fan blades of the stable heat dissipation type permanent magnet direct drive motor disclosed in this utility model embodiment;

[0020] In the diagram: 1. Main body; 101. Permanent magnet direct drive motor body; 102. Connecting seat; 103. Heat dissipation hole; 104. First docking plate; 105. Controller; 2. Auxiliary mechanism; 201. Housing; 202. Ventilation hole; 203. Filter screen; 204. High temperature resistant servo motor; 205. Fourth docking plate; 206. Second movable seat; 207. Electric telescopic rod; 208. Cage; 209. Fan blade; 210. Connecting rod; 211. Second docking plate; 212. Third docking plate; 213. Adjusting seat; 214. First movable seat; 215. Slide groove; 216. Slide bar. Detailed Implementation

[0021] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model will be described in detail below. Example 1

[0022] Please see Figures 1-5 This utility model provides a technical solution: a stable heat dissipation type permanent magnet direct drive motor, including a main body 1 and an auxiliary mechanism 2.

[0023] The main body 1 includes a permanent magnet direct drive motor body 101. A connecting seat 102 is installed at one end of the permanent magnet direct drive motor body 101. A first docking plate 104 is rotatably connected at the center of the connecting seat 102. One end of the first docking plate 104 is connected to the drive shaft of the permanent magnet direct drive motor body 101.

[0024] The auxiliary mechanism 2 includes a housing 201, which is bolted to the outer side of one end of the connecting seat 102. A retainer 208 is rotatably connected inside the housing 201. A fan blade 209 is rotatably inserted at the center of the retainer 208. A connecting rod 210 is movably inserted at the center of the fan blade 209. A second docking plate 211 and a third docking plate 212 are respectively fitted at both ends of the connecting rod 210.

[0025] A high-temperature resistant servo motor 204 is fixedly installed on one side of the interior of the housing 201. The output end of the high-temperature resistant servo motor 204 is fitted with a fourth docking plate 205. The second docking plate 211 and the third docking plate 212 can be used for frictional connection with the first docking plate 104 and the fourth docking plate 205, respectively. The connecting seat 102 of the main body 1 and the first docking plate 104 provide a mounting base for the auxiliary mechanism 2. Through the frictional connection between the first docking plate 104 and the second docking plate 211, the power of the permanent magnet direct drive motor body 101 can be transmitted to the fan blade 209 to achieve active heat dissipation.

[0026] The high-temperature servo motor 204 of the auxiliary mechanism 2 is connected to the third docking plate 212 through the friction of the fourth docking plate 205. It can independently drive the fan blade 209 to rotate. When the speed of the permanent magnet direct drive motor body 101 decreases, the high-temperature servo motor 204 can assist in heat dissipation inside the permanent magnet direct drive motor body 101, meet the heat dissipation requirements under different working conditions, and improve heat dissipation flexibility.

[0027] Please see Figures 1-5 The inner ring of the fan blade 209 is provided with several sliding grooves 215, and the outer side of the connecting rod 210 is provided with several sliding strips 216. The sliding grooves 215 and the sliding strips 216 are slidably connected.

[0028] An adjusting seat 213 is rotatably sleeved at one end of the connecting rod 210 near the third docking plate 212. Both ends of the adjusting seat 213 are fixedly installed with first movable seats 214. Both sides of the inside of the housing 201 are fixedly installed with second movable seats 206. The inside of each second movable seat 206 is hinged with an electric telescopic rod 207 by a pin. The other end of each electric telescopic rod 207 is hinged to the inside of the first movable seat 214 by a pin.

[0029] A plurality of ventilation holes 202 are provided at one end of the housing 201. A filter screen 203 is installed inside the housing 201 on one side of the ventilation holes 202. The sliding groove 215 and the slide bar 216 slide together, so that the connecting rod 210 can move along the axial direction of the fan blade 209, while ensuring that the fan blade 209 rotates synchronously with the connecting rod 210. This makes it convenient to adjust the driving mode of the fan blade 209 according to the speed of the permanent magnet direct drive motor body 101.

[0030] The adjusting seat 213 is rotatably connected to the connecting rod 210, providing a hinge fulcrum for the electric telescopic rod 207. The extension and retraction of the electric telescopic rod 207 can push the adjusting seat 213 to drive the connecting rod 210 to move axially along the fan blade 209, thereby driving the connecting rod 210 to move inside the fan blade 209. Thus, when the first mating plate 104 and the second mating plate 211 are in frictional connection, the drive shaft of the permanent magnet direct drive motor body 101 drives the fan blade 209 to rotate. When the third mating plate 212 and the fourth mating plate 205 are in frictional connection, the high-temperature servo motor 204 drives the fan blade 209 to rotate. The electric telescopic rod 207 converts the telescopic motion into the axial displacement of the connecting rod 210 through the hinged first movable seat 214 and the second movable seat 206, facilitating the frictional connection between its two ends and the first mating plate 104 or the fourth mating plate 205.

[0031] Ventilation holes 202 provide air circulation channels, and filters 203 can filter dust and impurities in the air, preventing foreign objects from entering the permanent magnet direct drive motor body 101 and affecting heat dissipation or causing mechanical damage, ensuring long-term stable operation of the heat dissipation system and extending the service life of the permanent magnet direct drive motor body 101.

[0032] Please see Figures 1-5 The connector 102 has several heat dissipation holes 103 inside, which are connected to the interior of the permanent magnet direct drive motor body 101. Silicone anti-slip pads are fixedly installed on the outer sides of the first docking plate 104, the second docking plate 211, the third docking plate 212 and the fourth docking plate 205.

[0033] A controller 105 is installed on one side of the permanent magnet direct drive motor body 101. The heat dissipation hole 103 connects the inside and outside of the permanent magnet direct drive motor body 101. Together with the airflow generated by the fan blade 209, it forms an efficient heat dissipation path, which quickly removes the heat generated by the permanent magnet direct drive motor body 101 during operation. This avoids the performance degradation or failure of the permanent magnet direct drive motor body 101 due to excessive temperature, and improves the stability and reliability of the permanent magnet direct drive motor body 101.

[0034] Silicone anti-slip pads increase the coefficient of friction between the mating plates, ensuring the stability and reliability of power transmission and preventing heat dissipation failure due to slippage. At the same time, the silicone material has high temperature resistance and cushioning properties, which can reduce wear and vibration between the mating plates and extend the service life of the mechanism.

[0035] The controller 105 can integrate and control the operating parameters of the permanent magnet direct drive motor body 101 and the high temperature resistant servo motor 204. Based on the speed parameters of the permanent magnet direct drive motor body 101, it can automatically adjust the driving mode of the fan blade 209 to improve the heat dissipation effect of the permanent magnet direct drive motor body 101.

[0036] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

[0037] The following is a method for using a stable heat dissipation type permanent magnet direct drive motor in this embodiment:

[0038] In use, the controller 105 switches the drive mode of the fan blades 209 according to the real-time speed of the permanent magnet direct drive motor body 101. When the speed of the permanent magnet direct drive motor body 101 is high, the electric telescopic rod 207 extends, pushing the adjusting seat 213 to move the connecting rod 210, so that the second docking plate 211 and the first docking plate 104 are tightly connected by friction. At this time, the permanent magnet direct drive motor body 101 drives the first docking plate 104 to rotate through the drive shaft, and drives the fan blades 209 to rotate synchronously through the second docking plate 211. The airflow path is formed by the heat dissipation hole 103 and the ventilation hole 202 to quickly remove the heat inside the permanent magnet direct drive motor body 101. When the speed of the permanent magnet direct drive motor body 101 decreases or stops, the electric telescopic rod 207 retracts, pulling the connecting rod 210. The third docking plate 212 and the fourth docking plate 205 are connected by friction, the connecting rod 210 is separated from the transmission of the permanent magnet direct drive motor body 101, the high temperature servo motor 204 independently drives the fan blade 209 to rotate, continuously providing heat dissipation airflow, avoiding failure of the permanent magnet direct drive motor body 101 due to residual heat accumulation, the sliding cooperation of the slide groove 215 and the slide bar 216 ensures that when the connecting rod 210 moves axially, the fan blade 209 can still rotate synchronously with it without affecting the power transmission, the filter screen 203 filters impurities in the air, the silicone anti-slip pad ensures stable power transmission between the first docking plate 104, the second docking plate 211, the third docking plate 212 and the fourth docking plate 205, the heat dissipation hole 103 and the ventilation hole 202 work together to form an efficient heat dissipation cycle.

[0039] The above embodiments are only for illustrating the technical concept of this utility model and should not be used to limit the protection scope of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the protection scope of this utility model.

Claims

1. A stable heat dissipation type permanent magnet direct drive motor, characterized in that: The system includes a main body (1) and an auxiliary mechanism (2). The main body (1) includes a permanent magnet direct drive motor body (101). A connecting seat (102) is installed at one end of the permanent magnet direct drive motor body (101). A first docking plate (104) is rotatably connected to the center of the connecting seat (102). One end of the first docking plate (104) is connected to the drive shaft of the permanent magnet direct drive motor body (101). The auxiliary mechanism (2) includes a housing (201). The housing (201) is bolted to the outside of one end of the connecting seat (102). A retainer (208) is rotatably connected inside the housing (201). A fan blade (209) is rotatably inserted at the center of the retainer (208), and a connecting rod (210) is movably inserted at the center of the fan blade (209). A second mating plate (211) and a third mating plate (212) are respectively fitted at both ends of the connecting rod (210). A high-temperature resistant servo motor (204) is fixedly installed on one side of the inside of the housing (201). A fourth mating plate (205) is fitted at the output end of the high-temperature resistant servo motor (204). The second mating plate (211) and the third mating plate (212) can be used for frictional connection with the first mating plate (104) and the fourth mating plate (205), respectively.

2. The stable heat dissipation type permanent magnet direct drive motor according to claim 1, characterized in that: The inner ring of the fan blade (209) is provided with several sliding grooves (215), and the outer side of the connecting rod (210) is provided with several sliding strips (216). The sliding grooves (215) and the sliding strips (216) are slidably connected.

3. The stable heat dissipation type permanent magnet direct drive motor according to claim 1, characterized in that: The connecting rod (210) is rotatably fitted with an adjusting seat (213) at one end near the third docking plate (212), and a first movable seat (214) is fixedly installed at both ends of the adjusting seat (213).

4. A stable heat dissipation permanent magnet direct drive motor according to claim 3, characterized in that: The housing (201) has two fixedly installed second movable seats (206) on both sides inside. The second movable seats (206) are each hinged with an electric telescopic rod (207) by a pin. The other end of the electric telescopic rod (207) is hinged to the inside of the first movable seat (214) by a pin.

5. A stable heat dissipation permanent magnet direct drive motor according to claim 1, characterized in that: A plurality of ventilation holes (202) are provided at one end of the housing (201), and a filter screen (203) is installed inside the housing (201) on one side of the plurality of ventilation holes (202).

6. A stable heat dissipation permanent magnet direct drive motor according to claim 1, characterized in that: The connector (102) has several heat dissipation holes (103) inside, and the heat dissipation holes (103) are connected to the interior of the permanent magnet direct drive motor body (101).

7. A stable heat dissipation permanent magnet direct drive motor according to claim 1, characterized in that: Silicone anti-slip pads are fixedly installed on the outer sides of the first docking plate (104), the second docking plate (211), the third docking plate (212), and the fourth docking plate (205).

8. A stable heat dissipation permanent magnet direct drive motor according to claim 1, characterized in that: A controller (105) is installed on one side of the permanent magnet direct drive motor body (101).

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