Drive-integrated ac servo motor

Abstract

The application relates to the technical field of servo motors, and discloses a drive-integrated alternating-current servo motor which comprises a motor shell, a wind cooling module is mounted on the surface of the motor shell, and a driver is mounted on the top of the motor shell; the bottom of the driver is provided with an inverted concave character-shaped structure; the inverted concave character-shaped structure, the top of the motor shell and the wind cooling module form a directional air chamber; the inverted concave character-shaped bottom of the driver, the motor shell and the wind cooling module form an open directional air chamber; the air flow is forced to flow through the motor heat dissipation area and the driver heating element area by combining the air flow communication cavity on the top of the motor shell and the hollow guide strip; the directional air chamber does not need a complex flow channel structure, and precise heat dissipation fins are used to realize precise heat dissipation; when the height of the fins is higher than that of the flow channel, the forced air flow adheres to the fins to strengthen heat exchange; when the height of the fins is lower than that of the flow channel, the air resistance is reduced to adapt to large-flow heat dissipation; the two modes cover multiple scene requirements, guarantee the heat dissipation efficiency, and simplify the structure and reduce the cost.

Description

Technical Field

[0001] This invention relates to the field of servo motor technology, specifically to an integrated AC servo motor for driving. Background Technology

[0002] The existing integrated AC servo motor is a high-efficiency drive device that integrates the servo motor body and the driver into one unit. Through structural optimization, it achieves deep integration of "motor-drive-control". It abandons the traditional mode of separate installation of motor and driver, and adopts a compact design to integrate power module, control circuit and motor housing, reducing connection cables and installation space.

[0003] In the existing technology of driving integrated AC servo motors, although the structure of the motor body and the driver has been integrated, there are still many defects that need to be solved in practical applications. The most prominent one is the limitation of heat dissipation design. Since the motor and driver are tightly mounted on the same mounting surface, the heat generated by the two during operation will accumulate in large quantities on the contact surface, forming a significant thermal coupling effect.

[0004] To alleviate this problem, existing technologies often employ heat dissipation by creating flow channels on the mounting surface, attempting to remove heat through a fluid medium. However, the structural characteristics of the flow channels themselves make them a new source of thermal resistance—the roughness of the inner wall of the flow channel, the boundary layer effect of fluid flow, and the contact thermal resistance between the flow channel and the motor housing and driver all significantly reduce heat dissipation efficiency, making it difficult for heat to be quickly dissipated. Long-term operation can easily cause overheating and aging of the power devices inside the driver, affecting the lifespan of the equipment. An even more prominent issue is the cost burden brought about by the flow channel design. The machining of the flow channels requires high-precision machining processes. Whether it's milling and finishing after casting or directly using a CNC machining center to carve the cavity, both require significant time and equipment costs.

[0005] For an integrated structure that is already compact in size, the layout of the flow channel must avoid internal cables and structural support positions, which further increases the design complexity and leads to a significant increase in manufacturing costs. This makes it even more difficult to control the cost of integrated motors, which are already expensive due to their integrated design, thus limiting their widespread application in low- to mid-range automation scenarios.

[0006] Furthermore, the reliability issues caused by vibration transmission cannot be ignored. When a servo motor is running, the high-speed rotation of the rotor and the electromagnetic force of the stator winding will generate periodic vibrations. These vibrations are directly transmitted to the driver through the rigidly connected mounting surface. In the existing integrated structure, the motor and driver are mostly assembled with rigid bolts, lacking effective vibration isolation design. This results in vibration energy acting on the electronic components inside the driver without attenuation. For example, fragile parts such as capacitor pins and solder joints in the driver are subjected to high-frequency vibration for a long time, which can easily lead to fatigue fracture or poor contact. Precision control chips may also experience signal drift due to vibration interference, resulting in decreased control accuracy or even malfunction.

[0007] This vibration coupling problem is particularly pronounced under high speed and high load conditions, which seriously affects the operational stability and reliability of the equipment. However, existing technologies that simply rely on increasing the structural wall thickness or selecting high-strength materials will fall into a vicious cycle of increased weight and cost, making it difficult to fundamentally solve the vibration transmission problem.

[0008] The combination of these shortcomings makes it difficult for existing integrated AC servo motors to achieve a balance between heat dissipation efficiency, cost control, and operational reliability, thus restricting their further application in industrial scenarios with high precision and high stability requirements.

[0009] Therefore, this invention proposes an integrated AC servo motor for driving. Summary of the Invention

[0010] The purpose of this invention is to provide an integrated AC servo motor for driving, so as to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, the present invention provides the following technical solution: an integrated AC servo motor driver, comprising a motor housing, an air-cooling module mounted on the surface of the motor housing, and a driver mounted on its top, wherein the bottom of the driver is configured with an inverted U-shaped structure, and the inverted U-shaped structure, together with the top of the motor housing and the air-cooling module, forms a directional air chamber;

[0012] The airflow generated by the air-cooling module enters the directional air chamber through the air inlet, and is forced to flow through the heat dissipation area on the top of the motor housing and the corresponding area of ​​the heat-generating element at the bottom of the driver before being discharged, thus achieving coordinated directional heat dissipation.

[0013] Preferably, the top of the motor housing is provided with an airflow communication cavity, which is connected to the directional air chamber. The top of the motor housing is symmetrically and integrally formed with hollow guide strips, which are connected to the airflow communication cavity. The bottom of the driver extends downward and is integrally formed with a sliding flange. The driver slides against the surface of the hollow guide strip through the sliding flange to achieve the assembly effect. Both surfaces are provided with threaded holes and are threadedly connected with bolts.

[0014] Preferably, each of the hollowed-out guide strips is equipped with a composite damping plate. The composite damping plate is composed of an elastic curved plate one, an elastic curved plate two, an elastic curved plate three, and two fixing rings. The two ends of the elastic curved plate one are fixedly connected to the inner wall of the hollowed-out guide strip, and the two fixing rings fix the elastic curved plate one, the elastic curved plate two, and the elastic curved plate three into an integral structure.

[0015] Preferably, the top of the hollow guide strip is provided with an elastic relief groove, the third elastic curved plate protrudes from the surface of the elastic relief groove, and the bending direction of the first elastic curved plate, the second elastic curved plate, and the third elastic curved plate are all set to upward.

[0016] Preferably, when the driver slides on the surface of the hollow guide strip, the elastic curved plate is pressed against the interior of the hollow guide strip.

[0017] Preferably, flow grooves are provided on the sides of the hollowed-out guide strips that are close to each other, and several fins are fixedly connected to the top of the motor housing.

[0018] Preferably, the height of the fins is higher than the height of the flow channel.

[0019] Preferably, the height of the fins is lower than the height of the flow channel, and the two hollow guide strips are fixedly connected to an end connecting plate on the side away from the air-cooling module, with a blocking component installed at the bottom of the end connecting plate.

[0020] Preferably, the blocking member consists of a rotating shaft and flexible bristles, the rotating shaft being rotatably connected between the hollow guide strips, and the top of the flexible bristles being fixedly connected to the bottom of the rotating shaft.

[0021] Preferably, the blocking member and the end connecting plate enclose the directional air chamber structure into a semi-enclosed structure.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention forms an open directional air chamber by enclosing the inverted concave bottom of the driver, the motor housing, and the air-cooling module. Combined with the coordinated layout of the airflow connecting cavity on the top of the motor housing and the hollow guide strip, the airflow is forced to flow through the heat dissipation area of ​​the motor and the heat-generating element area of ​​the driver. The directional air chamber does not require a complex flow channel structure. It uses natural airflow and fins to achieve precise heat dissipation. When the fin height is higher than the flow channel, the airflow is forced to adhere to the fins to enhance heat exchange. When the fin height is lower than the flow channel, the air resistance is reduced to adapt to high-flow heat dissipation. The two modes cover the needs of multiple scenarios, ensuring heat dissipation efficiency while simplifying the structure and reducing costs. At the same time, the sliding assembly design allows the driver to be quickly removed, and the interior of the directional air chamber is fully exposed, solving the problems of difficult maintenance and inconvenient dust cleaning of traditional integrated structures, and greatly improving the convenience of maintenance.

[0024] 2. This invention utilizes a graded damping mechanism with composite damping plates. Within a hollowed-out guide strip, a damping structure is integrated, consisting of three elastic curved plates and a fixing ring. During installation, the weight of the driver causes the third elastic curved plate to deform first, followed by progressively attenuated deformation of the second and first curved plates via the fixing ring, creating a "pre-tightening deformation" that enhances assembly stability. During operation, the elasticity and rigidity characteristics of different curved plates are utilized to absorb high-frequency electromagnetic vibrations, buffer mid-frequency load vibrations, and limit low-frequency start-stop impacts, achieving graded isolation of vibration energy. Compared to traditional passive solutions that increase wall thickness and use high-strength materials, this active damping design, based on structural synergy, effectively blocks vibration transmission, protects driver electronic components, improves equipment reliability, and does not add excessive weight or cost.

[0025] 3. This invention utilizes a dynamic dustproof structure with "airflow-driven flexible bristles." At the outlet of the directional air chamber, a blocking component consisting of a rotating shaft and flexible bristles is installed via an end connecting plate. When the equipment is running, the airflow pushes the bristles up to open the channel, achieving low-resistance heat dissipation. When the machine stops, the bristles naturally droop down to close the channel, forming a dustproof barrier. This dynamic design requires no additional power and uses the adaptability of airflow to resolve the contradiction between dust prevention and heat dissipation. The flexible bristles both block dust intrusion and reduce wind resistance through rotation, making it suitable for dusty environments such as textile workshops and food production lines. It breaks through the application bottleneck of traditional technologies in special environments and ensures long-term stable operation of the motor.

[0026] 4. Traditional integrated motor structural designs often focus on a single function, leading to component redundancy and increased costs. This technology, through the concept of structural reuse, allows the hollow guide strip to serve multiple functions: assembly guidance, heat dissipation channel, and vibration damping carrier. As an assembly component, the cooperation between the sliding flange and the guide strip facilitates the installation of the driver. As a heat dissipation channel, the internal meandering airflow carries away assembly stress heat and supplements the motor's cooling source. As a vibration damping carrier, the integrated composite damping plate achieves vibration isolation. At the same time, the fins, airflow connecting cavity, and other structures are also functionally integrated around the directional air chamber. This abandons the traditional "single-function component" design, achieving multiple needs such as heat dissipation, assembly, vibration damping, and dust prevention with minimal structural investment. It maximizes functional integration within a compact space, significantly improving the product's cost-effectiveness and application flexibility.

[0027] 5. This invention achieves precise scenario coverage through differentiated design: Embodiment 1 uses an open directional air chamber with fins higher than the flow channel to adapt to high-precision, low-dust industrial automation scenarios (such as precision machine tools and high-end robots), ensuring heat dissipation efficiency and assembly accuracy; Embodiment 2 uses a semi-enclosed dynamic dustproof air chamber with fins lower than the flow channel to adapt to scenarios with high dust and large flow heat dissipation requirements (such as textiles and food processing), solving the contradiction between dust accumulation thermal resistance and air resistance. This scenario-based segmented design allows the same technical architecture to be flexibly adjusted to adapt to different industry needs, breaking through the limitations of the traditional "one-size-fits-all" design, providing technical support for the widespread application of integrated AC servo motors, and promoting the industry towards a more precise and adaptable direction. Attached Figure Description

[0028] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the main structure of the present invention;

[0029] Figure 2 This is a three-dimensional cross-sectional view of the main structure of the present invention;

[0030] Figure 3 This is a three-dimensional disassembly diagram of the main structure of the present invention;

[0031] Figure 4 This is a three-dimensional sectional view of the main structure of the present invention from another angle;

[0032] Figure 5 This is a three-dimensional schematic diagram of the composite damping plate and the hollowed-out guide strip of the present invention;

[0033] Figure 6 This is a three-dimensional disassembly diagram of the composite damping plate of the present invention;

[0034] Figure 7 This is a three-dimensional schematic diagram of the fit between the fins and the flow channel in Embodiment 1 of the present invention;

[0035] Figure 8 This is a partial three-dimensional schematic diagram of the main structure in Embodiment 2 of the present invention;

[0036] Figure 9 This is a three-dimensional schematic diagram of the fit between the fins and the flow channel in Embodiment 2 of the present invention;

[0037] Figure 10 This is a three-dimensional disassembly diagram of the main structure in Embodiment 2 of the present invention.

[0038] In the picture:

[0039] 1. Motor housing; 11. Hollowed-out guide strip; 111. Elastic relief groove; 112. Flow groove; 12. Fin; 2. Air-cooled module; 21. Airflow connecting cavity; 3. Driver; 31. Sliding flange; 4. Composite damping plate; 41. Elastic curved plate one; 42. Elastic curved plate two; 43. Elastic curved plate three; 44. Fixing ring; 5. Blocking component; 51. Rotating shaft; 52. Flexible bristles; 6. End connecting plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0041] Example 1, please refer to as follows Figures 1 to 7 As shown, an integrated AC servo motor includes a motor housing 1, a wind-cooled module 2 mounted on the surface of the motor housing 1, and a driver 3 mounted on its top. The bottom of the driver 3 is configured with an inverted U-shaped structure, and the inverted U-shaped structure, together with the top of the motor housing 1 and the wind-cooled module 2, forms a directional air chamber.

[0042] The airflow generated by the air-cooled module 2 enters the directional air chamber through the air inlet, and is forced to flow through the heat dissipation area at the top of the motor housing 1 and the corresponding area of ​​the heat-generating element at the bottom of the driver 3 before being discharged, thus achieving coordinated directional heat dissipation.

[0043] It should be noted that the top of the motor housing 1 is provided with an airflow communication cavity 21, which is connected to the directional air chamber. The top of the motor housing 1 is symmetrically and integrally formed with hollow guide strips 11, which are connected to the airflow communication cavity 21. The bottom of the driver 3 extends downward and is integrally formed with a sliding flange 31. The driver 3 slides against the surface of the hollow guide strips 11 through the sliding flange 31 to achieve the assembly effect. Both surfaces are provided with threaded holes and bolts are threadedly connected. Each hollow guide strip 11 is equipped with a composite damping plate 4. The composite damping plate 4 is composed of an elastic curved plate 1 41, an elastic curved plate 2 42, an elastic curved plate 3 43, and two fixing rings 44. The two ends of the elastic curved plate 1 41 are fixedly connected. Attached to the inner wall of the hollow guide strip 11, two fixing rings 44 fix the first elastic curved plate 41, the second elastic curved plate 42, and the third elastic curved plate 43 into a whole structure. The top of the hollow guide strip 11 is provided with an elastic relief groove 111. The third elastic curved plate 43 protrudes from the surface of the elastic relief groove 111. The bending direction of the first elastic curved plate 41, the second elastic curved plate 42, and the third elastic curved plate 43 is all set upward. When the driver 3 slides on the surface of the hollow guide strip 11, the third elastic curved plate 43 is pressed against the inside of the hollow guide strip 11. The sides of the hollow guide strip 11 that are close to each other are provided with flow grooves 112. Several fins 12 are fixedly connected to the top of the motor housing 1. The height of the fins 12 is higher than the height of the flow grooves 112.

[0044] Specifically, during the installation phase, the operator aligns the sliding flange 31 of the driver 3 with the hollow guide strip 11 on the top of the motor housing 1, and smoothly slides it along the guide strip toward the side of the air-cooled module 2.

[0045] As the driver 3 is gradually positioned, its own weight is transmitted to the composite damping plate 4 inside the hollow guide strip 11 through the sliding flange 31. Since the elastic curved plate 3 43 protrudes from the surface of the elastic relief groove 111 of the hollow guide strip 11, the weight of the driver 3 will directly act on the elastic curved plate 3 43, forcing it to undergo slight elastic deformation downwards.

[0046] It should be noted that the elastic curved plate 3 43 forms a rigid connection with the elastic curved plate 2 42 and the elastic curved plate 1 41 through the fixing ring 44. Therefore, the deformation energy of the elastic curved plate 3 43 will be transmitted step by step through the fixing ring 44, which will drive the elastic curved plate 2 42 and the elastic curved plate 1 41 to produce linkage deformation with decreasing amplitude in turn. This process enables the composite damping plate 4 to form a stable "pre-tightening deformation" during the installation stage, providing a continuous pre-tightening force for the assembly surface of the driver 3 and the motor housing 1, laying the foundation for the stability of equipment operation.

[0047] After the driver 3 slides to the preset position, the bolts are inserted into the threaded holes on the surface of the sliding flange 31 and the hollow guide strip 11 and tightened to complete the rigid locking, further enhancing the anti-loosening ability of the assembly structure.

[0048] When the equipment is running, after the air-cooling module 2 is started, external cold air is quickly drawn into the directional air chamber formed by the inverted U-shaped bottom of the driver 3, the top of the motor housing 1, and the air-cooling module 2 through the air inlet.

[0049] Because the airflow communication cavity 21 at the top of the motor housing 1 is directly connected to the directional air chamber, and the hollow guide strip 11 is rigidly connected to the airflow communication cavity 21, the airflow is forcibly distributed into two core paths. Combined with the structural design that the height of the fins 12 is higher than that of the flow groove 112, precise and efficient heat dissipation is achieved.

[0050] Path 1: After the deep heat dissipation airflow of the hollow guide strip 11 enters the interior of the hollow guide strip 11, it is blocked by the pre-tightened composite damping plate 4 (elastic curved plate 1 41, elastic curved plate 2 42, elastic curved plate 3 43), forming a "winding channel" inside the guide strip. When the airflow flows along the gap between the composite damping plate 4 and the inner wall of the hollow guide strip 11, it can carry away the heat generated by the assembly stress and vibration friction of the guide strip (avoiding thermal expansion from affecting the sliding assembly accuracy); on the other hand, it indirectly supplements the heat dissipation area at the top of the motor housing 1 through heat conduction, so that the hollow guide strip 11 is upgraded from a "simple assembly component" to a "heat dissipation auxiliary channel", significantly improving the structural function reuse rate.

[0051] Path 2: Targeted heat dissipation of driver 3 and motor housing 1. Another part of the airflow directly flows into the gap area between the bottom of driver 3 and the top of motor housing 1. Since the height of the fins 12 on the top of motor housing 1 is higher than that of the flow channel 112, the airflow cannot escape quickly from the flow channel 112 and is forced to "adhere to flow" along the surface of the fins 12. The fins 12 increase the heat dissipation area and quickly conduct the heat generated inside the motor housing 1 (electromagnetic losses of stator windings and rotor core) to the airflow. At the same time, the airflow fully covers the heat-generating components (such as IGBT modules and capacitor banks) at the bottom of driver 3 in the gap area, accurately removing the working heat of power electronic devices and realizing the coordinated heat dissipation of motor and driver 3.

[0052] During equipment operation, the electromagnetic force of the stator winding will cause the rotor to vibrate periodically, and the vibration will be transmitted to the hollow guide bar 11 through the motor housing 1.

[0053] At this point, the pre-tightened composite damping plate 4 plays a graded damping role: the elastic curved plate 3 43, with its high elasticity, absorbs high-frequency vibration energy (such as electromagnetic vibration) through high-frequency small-amplitude deformation; the elastic curved plate 2 42 buffers medium-frequency vibration (such as mechanical vibration caused by load fluctuations) with medium-amplitude deformation; and the elastic curved plate 1 41 restricts low-frequency large-amplitude vibration (such as impact vibration during equipment start-up and shutdown) through its rigid structure. This "graded damping" mechanism not only blocks the transmission of vibration energy to the actuator 3, preventing internal electronic components (such as solder joints and capacitor pins) from being damaged by vibration fatigue, but also strengthens the overall structure's vibration resistance through pre-tightening deformation, ensuring that the actuator 3 operates stably in a vibration environment.

[0054] Ultimately, through the synergistic structure of "compact integration + efficient heat dissipation + stable vibration resistance", reliable operation of the integrated AC servo motor is achieved.

[0055] More importantly, the sliding assembly structure of this design provides significant convenience for equipment maintenance. When maintenance or cleaning is required, the operator only needs to loosen the bolts on the surface of the sliding flange 31 and the hollow guide bar 11 to slide the driver 3 along the hollow guide bar 11 to the side away from the air-cooled module 2 without disassembling the overall structure. This design greatly reduces the operating space required for maintenance and is especially suitable for industrial scenarios where equipment is densely installed.

[0056] Meanwhile, after the drive 3 slides apart, the interior of the directional air chamber, the surface of the fins 12, and the gap area of ​​the hollow guide strip 11 are fully exposed, making it easy for operators to directly clean the accumulated dust or check the condition of the heat dissipation components. This avoids the cumbersome disassembly and assembly problems that occur during the maintenance of traditional integrated structures, and significantly improves maintenance efficiency.

[0057] Example 2, please refer to the following: Figures 8 to 10 As shown, the height of the fin 12 is lower than the height of the flow channel 112. The two hollow guide strips 11 are fixedly connected to the end connecting plate 6 on the side away from the air-cooling module 2. The bottom of the end connecting plate 6 is equipped with a blocking member 5.

[0058] It should be noted that the blocking component 5 consists of a rotating shaft 51 and flexible bristles 52. The rotating shaft 51 is rotatably connected between the hollow guide strips 11, and the top of the flexible bristles 52 is fixedly connected to the bottom of the rotating shaft 51. The blocking component 5 and the end connecting plate 6 enclose the directional air chamber structure into a semi-enclosed structure.

[0059] Specifically, in this embodiment, the height of the fin 12 is lower than the height of the flow channel 112. This design significantly reduces the flow resistance of the airflow at the top of the motor housing 1. When the air-cooling module 2 is started, the airflow in the directional air chamber can flow more smoothly over the surface of the fin 12, reducing the wind pressure loss caused by the obstruction of the fin 12. This is especially suitable for working conditions that require a large flow of air for rapid heat dissipation.

[0060] To balance the requirements of low-resistance heat dissipation and dust prevention, and to cope with dust intrusion caused by environmental changes, a blocking element 5 is installed on the side of the two hollow guide strips 11 away from the air-cooled module 2 via an end connecting plate 6. The blocking element 5 consists of a rotating shaft 51 and flexible bristles 52. The rotating shaft 51 is rotatably connected between the hollow guide strips 11, and the flexible bristles 52 are distributed in a ring at the bottom of the rotating shaft 51. Together with the end connecting plate 6 and the hollow guide strips 11, they enclose the directional air chamber into a semi-enclosed structure.

[0061] This structure is designed to reduce the thermal resistance accumulation problem that easily occurs in the open directional air chamber of Example 1 in dusty environments, forming a protective barrier from a spatial structure perspective.

[0062] When the equipment is running, the airflow flows through the directional air chamber and then through the flow channel 112, and then flows towards the blocking member 5. At this time, the thrust of the airflow acts on the flexible bristles 52, causing the rotating shaft 51 to rotate to a certain extent. The originally naturally drooping flexible bristles 52 are lifted up with the rotating shaft 51, so that the outlet channel of the directional air chamber is opened.

[0063] This dynamic process avoids the wind resistance problem of traditional fixed dust screens (by reducing airflow impact resistance through the rotation of flexible bristles 52), and also blocks dust, fibers and other impurities from the external environment from entering the directional air chamber through the dense distribution of flexible bristles 52. This prevents dust from adhering to the bottom of the fins 12 or the driver 3 to form a heat insulation layer, effectively solving the hidden danger of increased thermal resistance caused by dust accumulation in the open structure of Embodiment 1, and ensuring stable heat dissipation efficiency.

[0064] When the equipment stops, the airflow thrust disappears, the rotating shaft 51 returns to its original position under the action of gravity, and the flexible bristles 52 naturally droop down to close the outlet channel, forming a continuous dust barrier, further preventing dust from intruding and accumulating during shutdown.

[0065] This design, which combines "airflow-driven automatic opening and closing with flexible bristles 52 for physical barrier," addresses the heat dissipation challenges in dusty environments through the synergistic effect of the blocking component 5 and the end connecting plate 6. It achieves the dual functions of "low-resistance heat dissipation" and "active dust prevention," enabling the integrated AC servo motor to maintain stable operation in dusty environments while reducing maintenance costs associated with regular dust cleaning.

[0066] Therefore, this embodiment is more suitable for industrial scenarios with a lot of dust or sensitive airflow resistance (such as textile workshops, food processing production lines, etc.). By optimizing the airflow path and dustproof design, it can improve the environmental adaptability of the equipment while ensuring heat dissipation efficiency.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drive-integrated AC servo motor, comprising a motor housing (1), a fan-cooled module (2) mounted on the surface of the motor housing (1), and a driver (3) mounted on its top, characterized in that: The bottom of the driver (3) is configured with an inverted U-shaped structure, which together with the top of the motor housing (1) and the air-cooling module (2) forms a directional air chamber; The airflow generated by the air-cooling module (2) enters the directional air chamber through the air inlet, and is forced to flow through the heat dissipation area at the top of the motor housing (1) and the corresponding area of ​​the heat-generating element at the bottom of the driver (3) before being discharged, thereby achieving coordinated directional heat dissipation; The top of the motor housing (1) is provided with an airflow communication cavity (21), which is connected to the directional air chamber. The top of the motor housing (1) is symmetrically integrally formed with a hollow guide strip (11), which is connected to the airflow communication cavity (21). The bottom of the driver (3) extends downward and is integrally formed with a sliding flange (31). The driver (3) slides against the surface of the hollow guide strip (11) through the sliding flange (31) to achieve the assembly effect. Both surfaces are provided with threaded holes and are threadedly connected with bolts. Each of the hollow guide strips (11) is equipped with a composite damping plate (4). The composite damping plate (4) is composed of an elastic curved plate one (41), an elastic curved plate two (42), an elastic curved plate three (43), and two fixing rings (44). The two ends of the elastic curved plate one (41) are fixedly connected to the inner wall of the hollow guide strip (11). The two fixing rings (44) fix the elastic curved plate one (41), the elastic curved plate two (42), and the elastic curved plate three (43) into an integral structure. The top of the hollow guide strip (11) is provided with an elastic relief groove (111), and the third elastic curved plate (43) protrudes from the surface of the elastic relief groove (111). The bending direction of the first elastic curved plate (41), the second elastic curved plate (42), and the third elastic curved plate (43) is all set to upward.

2. The integrated AC servo motor for driving according to claim 1, characterized in that: When the driver (3) slides on the surface of the hollow guide strip (11), the elastic curved plate three (43) is pressed against the interior of the hollow guide strip (11).

3. The integrated AC servo motor for driving according to claim 1, characterized in that: The hollow guide strips (11) are provided with flow grooves (112) on the side that are close to each other, and a number of fins (12) are fixedly connected to the top of the motor housing (1).

4. The integrated AC servo motor for driving according to claim 3, characterized in that: The height of the fin (12) is higher than the height of the flow channel (112).

5. The integrated AC servo motor for driving according to claim 3, characterized in that: The height of the fin (12) is lower than the height of the flow groove (112). The two hollow guide strips (11) are fixedly connected to the end connecting plate (6) on the side away from the air-cooling module (2). The bottom of the end connecting plate (6) is equipped with a blocking member (5).

6. The integrated AC servo motor for driving according to claim 5, characterized in that: The blocking member (5) consists of a rotating shaft (51) and flexible bristles (52). The rotating shaft (51) is rotatably connected between the hollow guide strips (11), and the top of the flexible bristles (52) is fixedly connected to the bottom of the rotating shaft (51).

7. The integrated AC servo motor for driving according to claim 6, characterized in that: The blocking component (5) and the end connecting plate (6) enclose the directional air chamber structure into a semi-enclosed structure.

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