A direct drive motor control device
By introducing heat dissipation channels and cooling channels from the cooling control box into the direct drive motor, combined with the design of the exhaust fan and cooling plate, the problems of dust accumulation and poor heat dissipation at high temperatures are solved, achieving efficient ventilation and heat dissipation and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINXUN INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-26
AI Technical Summary
Direct drive motors are prone to introducing dust during ventilation and heat dissipation, and their heat dissipation effect is poor in high-temperature environments. Existing technologies introduce natural air through filter holes, which leads to dust accumulation and reduced heat dissipation efficiency due to temperature differences.
The design incorporates heat dissipation and cooling channels within the refrigeration control box. It utilizes exhaust fans and cooling plates to achieve hot air circulation and heat dissipation, and combines the Peltier effect of semiconductor materials for cooling and heating, thereby improving heat dissipation and reducing dust ingress.
It achieves efficient ventilation and heat dissipation inside the direct drive motor, reduces dust accumulation, improves heat dissipation, and enhances operational stability.
Smart Images
Figure CN224418576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a direct drive motor control device, belonging to the field of direct drive motor technology. Background Technology
[0002] A direct drive motor is a type of motor drive system that eliminates traditional transmission mechanisms (such as gearboxes, belts, lead screws, reducers, etc.) and directly connects or integrates the rotor or mover of the motor (usually a rotary or linear motor) to the load (work object).
[0003] A direct drive motor generates a lot of hot air inside when it is running. If this hot air is not ventilated and cooled in time, the direct drive motor will always be in a high-temperature working environment, which will easily cause the direct drive motor to burn out.
[0004] In related technologies, ventilation and heat dissipation for direct drive motors are generally carried out by creating filter holes on the outside of a cover installed at one end of the direct drive motor housing. This has several advantages: first, by integrating the filter holes into the cover, the overall footprint of the direct drive motor can be reduced; second, the cover is easy to install and remove, facilitating future maintenance of the direct drive motor's interior; and third, during direct drive motor operation, a large amount of natural air can be introduced into the motor through the filter holes, achieving rapid ventilation and heat dissipation.
[0005] However, this method also has some drawbacks. For example, when a large amount of natural air is introduced into the direct drive motor for ventilation and heat dissipation, dust in the air will also be carried in. After entering the motor, this dust can accumulate in large quantities through electrostatic adsorption. If it is not cleaned in time, it will affect the normal operation of the direct drive motor. At the same time, if the direct drive motor is in a high-temperature working environment, the temperature difference between the introduced natural air and the hot air inside the direct drive motor will not be large, which will reduce the ventilation and heat dissipation effect on the running direct drive motor. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a direct drive motor control device, which solves the problems in the background art where a large amount of dust is introduced into the drive motor during ventilation and heat dissipation, and the direct drive motor itself is in a high-temperature working environment, resulting in poor ventilation and heat dissipation effect of the direct drive motor.
[0007] The technical solution adopted by this utility model to solve its technical problem is:
[0008] A direct drive motor control device, the direct drive motor control device comprising:
[0009] The cooling control box has a partition that separates the cooling channel into a heat dissipation channel and a cooling channel. One end of the heat dissipation channel is connected to the inside of the direct drive motor. An exhaust fan is installed at the connection point between the heat dissipation channel and the direct drive motor. Heat dissipation holes are arranged linearly on the outer side of the heat dissipation channel. Cold air holes are arranged linearly on the inner side of the cooling channel. The cooling channel is connected to the inside of the direct drive motor through the cold air holes.
[0010] Meanwhile, a cooling plate is installed on the partition.
[0011] Preferably, the cooling plate includes semiconductor material A and semiconductor material B, with the surfaces of semiconductor material A and semiconductor material B bonded together; and DC power wires are connected to one side of semiconductor material A and the other side of semiconductor material B.
[0012] Preferably, the direct drive motor control device further includes: a housing, and a refrigeration control box is provided on the outside of the housing, the refrigeration control box being connected to the inside of the housing; a cover is installed at one end of the housing.
[0013] Preferably, the outer surface of the outer shell has anti-slip grooves distributed in a ring.
[0014] Preferably, a cavity is formed inside the housing, a direct drive assembly is installed inside the cavity, and an output shaft is installed at the other end of the housing. The direct drive assembly installed inside the cavity is connected to one end of the output shaft.
[0015] Preferably, the direct drive assembly includes a stator core, windings, a rotor core, and permanent magnets. The stator core is wound with windings on its outer side, and permanent magnets are distributed on one side of the stator core. The rotor core is rotatably mounted inside the stator core shaft, and an output shaft is installed at the position of the rotor core shaft.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] The aforementioned direct drive motor control device has the following advantages compared to the current direct drive motor method of creating filter holes on the outside of a cover installed at one end of the direct drive motor housing:
[0018] It consists of a cooling control box mounted on the casing of a direct drive motor. The interior of the cooling control box is divided by a partition to form a heat dissipation channel and a cooling channel. One end of the heat dissipation channel is connected to the inside of the direct drive motor, and an exhaust fan is installed at the connection point. Heat dissipation holes are arranged linearly on the outer side of the heat dissipation channel. Cold air holes are arranged linearly on the inner side of the cooling channel, and the cooling channel is connected to the inside of the direct drive motor through the cold air holes. A cooling plate is mounted on the partition.
[0019] This generates a large amount of hot air inside the direct drive motor. At this time, the exhaust fan is started and the DC power is connected to the cooling plate. The exhaust fan runs and transports the hot air inside the direct drive motor to the heat dissipation channel through negative pressure, and then it is discharged through the heat dissipation holes. After the cooling plate is powered on, it can heat the inside of the heat dissipation channel on one side and cool the inside of the cooling channel on the other side. The cooled air enters the direct drive motor through the cold air holes, exchanges heat with the hot air inside the direct drive motor, and is finally discharged by the running exhaust fan.
[0020] This creates air circulation inside the direct drive motor, greatly improving the ventilation and heat dissipation during operation while also reducing the entry of dust from the outside air. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of a direct drive motor control device according to the present invention.
[0023] Figure 2 This is a schematic diagram of the internal structure of a direct drive motor control device according to the present invention.
[0024] Figure 3 This is a cross-sectional view of a direct drive motor control device according to the present invention.
[0025] Figure 4 This is a schematic diagram of the structure of the cooling plate of a direct drive motor control device according to this utility model.
[0026] In the diagram: 1-cover, 2-outer shell, 3-anti-slip groove, 4-refrigeration control box, 5-output shaft, 6-cavity, 7-stator core, 8-winding, 9-permanent magnet, 10-rotor core, 11-exhaust fan, 12-heat dissipation channel, 13-heat dissipation hole, 14-partition, 15-refrigeration plate, 16-refrigeration channel, 17-cooling air hole, 18-semiconductor material A, 19-semiconductor material B, 20-DC wire. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-4 This utility model provides a technical solution:
[0029] A direct drive motor control device, the direct drive motor control device comprising:
[0030] The refrigeration control box 4 is installed on the housing of the direct drive motor and is used to perform ventilation and heat dissipation operations on the inside of the direct drive motor during operation.
[0031] The cooling control box 4 is divided into a heat dissipation channel 12 and a cooling channel 16 by a partition 14. One end of the heat dissipation channel 12 is connected to the inside of the direct drive motor. An exhaust fan 11 is installed at the position where the heat dissipation channel 12 is connected to the direct drive motor. Heat dissipation holes 13 are arranged linearly on the outside of the heat dissipation channel 12. Cold air holes 17 are arranged linearly on the inside of the cooling channel 16. The cooling channel 16 is connected to the inside of the direct drive motor through the cold air holes 17.
[0032] Meanwhile, a cooling plate 15 is installed on the partition 14;
[0033] In an embodiment of this utility model, when the cooling control box 4 is used to ventilate and dissipate heat for the running direct drive motor, a large amount of hot air is generated inside the running direct drive motor. At this time, the exhaust fan 11 is started and the DC power is connected to the cooling plate 15.
[0034] When the exhaust fan 11 is running, it transports the hot air inside the direct drive motor to the heat dissipation channel 12 through negative pressure, and then exhausts it through the heat dissipation hole 13. When the cooling plate 15 is connected to the power supply, it can heat the inside of the heat dissipation channel 12 on one side and cool the inside of the cooling channel 16 on the other side. The cooled air enters the inside of the direct drive motor through the cold air hole 17, exchanges heat with the hot air inside the direct drive motor, and is finally discharged by the running exhaust fan 11.
[0035] This creates air circulation inside the direct drive motor, thus greatly improving the ventilation and heat dissipation effect during operation.
[0036] Please see Figure 4In one embodiment of the present invention, the cooling plate 15 includes semiconductor material A18 and semiconductor material B19, with the surfaces of semiconductor material A18 and semiconductor material B19 being attached and mounted together; and DC power wires 20 are connected to one side of semiconductor material A18 and the other side of semiconductor material B19 respectively.
[0037] According to the Peltier effect, when a direct current flows through a loop (junction) composed of two different conductors (or semiconductors), heat absorption or release will occur at the junction.
[0038] Therefore, when DC power is simultaneously supplied to semiconductor material A18 and semiconductor material B19 through DC power wire 20, the cooling plate 15 will heat up and cool down at the same time, thereby continuing to heat the hot air entering the heat dissipation channel 12 and then expelling it through the heat dissipation hole 13; while the air inside the cooling channel 16 is cooled and then guided into the direct drive motor through the cold air hole 17, accelerating the ventilation and heat dissipation operation inside the running direct drive motor.
[0039] Please refer to Figure 13. In one embodiment of this utility model, the direct drive motor control device further includes:
[0040] The outer surface of the outer casing 2 has anti-slip grooves 3 arranged in a ring on its outer surface. The anti-slip grooves 3 formed on the outer surface of the outer casing 2 can improve the stability of the direct drive motor when it is running or placed (if the outer surface of the outer casing 2 is smooth, it is easy to roll). On the other hand, it can also increase the contact area with the outside air and improve the ventilation and heat dissipation effect of the direct drive motor when it is running.
[0041] Specifically, a refrigeration control box 4 is also provided on the outside of the outer shell 2, and the refrigeration control box 4 is connected to the inside of the outer shell 2; a cover 1 is installed at one end of the outer shell 2, which is used to seal one side of the outer shell 2, both to seal and protect the direct drive motor, and can be easily disassembled later to facilitate maintenance of the inside of the direct drive motor.
[0042] The outer shell 2 forms a cavity 6 inside, and a direct drive assembly is installed inside the cavity 6. An output shaft 5 is installed at the other end of the outer shell 2. The direct drive assembly installed inside the cavity 6 is connected to one end of the output shaft 5.
[0043] When the direct drive component is powered on, it will drive the output shaft 5 to rotate, which is used to output the mechanical energy of the direct drive motor.
[0044] Please see Figure 2 and Figure 3The direct drive assembly installed inside the cavity 6 includes a stator core 7, a winding 8, a rotor core 10, and a permanent magnet 9. The winding 8 is wound around the outside of the stator core 7, and the permanent magnet 9 is distributed on one side of the stator core 7. The rotor core 10 is rotatably installed inside the shaft of the stator core 7, and an output shaft 5 is installed at the shaft position of the rotor core 10.
[0045] In this embodiment of the invention, the stator core 7 is formed by stacking silicon steel sheets, and the insulating layer is used to block the eddy current path and reduce eddy current loss. The specific functions of the stator core 7 are: 1. Magnetic conduction path: forming a low magnetic reluctance path and guiding the magnetic field to close along the designed path; 2. Supporting the winding 8: providing a physical structure to fix the winding 8; and the functions of the winding 8 are: 1. Current carrier: passing alternating current (such as three-phase sinusoidal current) to generate a rotating magnetic field; and 2. Energy conversion medium: converting electrical energy into magnetic energy (motor) through electromagnetic induction.
[0046] The permanent magnets 9 distributed on one side of the stator core 7 serve two purposes: 1. To establish an excitation magnetic field: replacing the electric excitation system and providing a constant magnetic field (without excitation loss); and 2. To increase power density: neodymium iron boron (NdFeB) magnets can provide remanence of >1.2T.
[0047] In addition, the rotor core 10 has the following functions: 1. Magnetic circuit closure: together with the stator core 7, it forms a complete magnetic circuit; 2. Bearing permanent magnets / guide bars: fixing magnets in permanent magnet motors; embedding aluminum / copper guide bars in induction motors; and 3. Mechanical support: transmitting electromagnetic torque to the output shaft 5, enabling the output shaft 5 to run and output mechanical kinetic energy.
[0048] The output mode of the direct drive component is as follows: current is passed through the winding 8 → a rotating magnetic field is generated → the permanent magnet 9 is cut → the rotor core 10 is induced by current or magnetic pull → the rotor core 10 drives the output shaft 5 to output torque.
[0049] The workflow of this embodiment is as follows:
[0050] When the direct drive motor is running, a large amount of hot air is generated inside the direct drive motor. At this time, the exhaust fan 11 installed inside the refrigeration control box 4 is started and the DC power is connected to the refrigeration plate 15.
[0051] When the exhaust fan 11 operates, it transports the hot air inside the cavity 6 to the heat dissipation channel 12 through negative pressure, and then discharges it through the heat dissipation hole 13. When the cooling plate 15 is connected to the power supply, it can heat the inside of the heat dissipation channel 12 on one side and cool the inside of the cooling channel 16 on the other side. The cooled air passes through the cold air hole 17 and enters the direct drive motor, where it exchanges heat with the hot air inside the cavity 6, and is finally discharged by the operating exhaust fan 11.
[0052] This creates air circulation inside the direct drive motor, thus greatly improving the ventilation and heat dissipation effect during operation.
[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A direct drive motor control device, characterized by include: The refrigeration control box (4) is divided by a partition (14) to form a heat dissipation channel (12) and a refrigeration channel (16). One end of the heat dissipation channel (12) is connected to the inside of the direct drive motor. An exhaust fan (11) is installed at the position where the heat dissipation channel (12) is connected to the direct drive motor. Heat dissipation holes (13) are arranged linearly on the outside of the heat dissipation channel (12). Cold air holes (17) are arranged linearly on the inside of the refrigeration channel (16). The refrigeration channel (16) is connected to the inside of the direct drive motor through the cold air holes (17). Meanwhile, a cooling plate (15) is installed on the partition (14).
2. The direct drive motor control device of claim 1, wherein: The cooling plate (15) includes semiconductor material A (18) and semiconductor material B (19), with the surface of semiconductor material A (18) and the surface of semiconductor material B (19) attached together; at the same time, DC wires (20) are connected to the semiconductor material A (18) side and the semiconductor material B (19) side respectively.
3. A direct drive motor control device according to any of claims 1 or 2, characterized in that: The direct drive motor control device also includes: a housing (2), and a refrigeration control box (4) is provided on the outside of the housing (2), which is connected to the inside of the housing (2); a cover (1) is installed on one end of the housing (2).
4. The direct drive motor control device according to claim 3, characterized in that: The outer surface of the outer shell (2) has anti-slip grooves (3) distributed in a ring.
5. A direct-drive motor control device according to claim 4, characterized in that: The housing (2) forms a cavity (6) inside, and a direct drive assembly is installed inside the cavity (6). An output shaft (5) is installed at the other end of the housing (2). The direct drive assembly installed inside the cavity (6) is connected to one end of the output shaft (5).
6. A direct-drive motor control device according to claim 5, characterized in that: The direct drive assembly includes a stator core (7), windings (8), a rotor core (10), and permanent magnets (9). The stator core (7) is wound with windings (8) on the outside and permanent magnets (9) are distributed on one side of the stator core (7). The rotor core (10) is rotatably mounted inside the shaft of the stator core (7) and an output shaft (5) is installed at the shaft position of the rotor core (10).