Coaxial linkage motor reversible device and adaptation method

Abstract

This invention discloses a coaxially linked reversible motor device and its adaptation method, belonging to the technical fields of motor equipment, electromechanical manufacturing, asynchronous induction power generation, and operating condition inverter adaptation. This invention abandons the inherent structure and design concept of traditional cylindrical asynchronous motors, innovatively adopting a coaxial linkage, circular vertical disk-type axial magnetic field integrated architecture. The stator is fixedly mounted on the main shaft bearing, the winding coils remain stationary, and the squirrel-cage rotors on both sides are locked and fixed to the main shaft on both sides of the stator, achieving high-precision coaxial synchronous rotation through the central bearing. The rotor features integrated heat dissipation blades, and the housing is equipped with open heat dissipation holes and external sealed ventilation ducts to achieve dual-mode heat dissipation. The two ends of the main shaft extend outwards, allowing for the detachable assembly of semi-circular and elliptical eccentric counterweights, enabling the device to also function as a stable vibration motor. Different specifications of fan blade assemblies can also be replaced at the shaft ends, enabling both active airflow for heat dissipation and coaxial self-generation through linkage with natural wind and airflow. It can be widely used in five major fields: rail transit, new energy vehicles, industrial machinery, aviation and ships, and civilian life. It has a high degree of functional integration and strong adaptability to various scenarios, and has extremely high promotion and application value and market practical value.

Description

Technical Field

[0001] This invention relates to the fields of asynchronous motor equipment manufacturing, integrated kinetic energy recovery power generation, electromechanical motor production, and electromechanical reversible inverter adaptation technology, specifically a coaxial motor reversible device and adaptation method. Background Technology

[0002] Traditional asynchronous motors generally adopt a classic design with a cylindrical structure, radial magnetic field layout, and built-in rotor rotation. They are bulky, thick, and have a high space occupancy rate. Their heat dissipation method is singular and fixed, and their functions are extremely limited. They can only be used as a single drive motor and cannot realize extended functions such as working condition inverter power generation, mechanical vibration operation, and full-area autonomous air cooling. Their adaptability to multiple scenarios is extremely poor.

[0003] Meanwhile, traditional motors lack an integrated and precise coaxial linkage design, resulting in low stator-rotor matching accuracy and poor long-term operational stability; the main shaft has no standardized expansion mounting positions at both ends, making it impossible to install eccentric counterweights and external fan components, thus limiting the scope for functional expansion.

[0004] In addition, traditional asynchronous motors are difficult to adapt to complex and harsh working conditions such as bumpy vehicle loading, high temperature and heavy load, outdoor waterproof and dustproof, and multi-position installation. They lack the basic design foundation for multi-purpose use, free switching of working conditions, and multi-functional integrated design. The industry has long suffered from many technical shortcomings such as outdated structure, single function, insufficient coaxial operation accuracy, and weak adaptability to harsh environments.

[0005] The applicant previously submitted several patents for vertical and side-mounted disc-type permanent magnet power and power generation, all of which adopted permanent magnet excitation structures and belonged to the permanent magnet synchronous motor technology route. However, this invention completely abandons the permanent magnet structure and is developed purely based on the squirrel-cage asynchronous induction principle. It adopts a brand-new assembly form with the stator fixed in the center, the rotor locked on the side, and the main shaft extending outward in both directions. The working principle, magnetic circuit structure, and overall architecture of the two are completely independent, with no technological overlap or content borrowing. It belongs to a brand-new and independent asynchronous electromechanical innovative technology solution. Summary of the Invention

[0006] I. Four Core Structural Innovations of This Invention This invention, based on the fundamental working principle of asynchronous motors, comprehensively reconstructs and upgrades the traditional motor's shape, layout, and function, breaking through the traditional design barriers of cylindrical motors and creating a new coaxial, vertically mounted electromechanical structure, achieving four core breakthroughs: (i) Innovative shape and layout, ultra-thin, compact and easy to install Completely abandoning the traditional cylindrical ring structure, it adopts a coaxial linkage + circular vertical disc axial magnetic field-facing layout. The whole machine is ultra-thin and flat with a compact structure, which can realize various installation postures such as vertical hoisting, side suspension, and embedded concealed installation. The two ends of the main shaft can be extended as needed, and the squirrel cage rotor is locked and fixed to the main shaft end faces on both sides of the stator. The central bearing ensures precise coaxial linkage between the stator and rotor, which greatly improves the stability of equipment operation. The extended end of the main shaft is reserved with a standardized installation position, which can flexibly add eccentric counterweights and fan blades of various specifications, greatly expanding the application scenarios of the equipment.

[0007] (ii) Reverse optimization of stator and rotor layout to reduce failures and extend service life The stator is centrally fixed and mounted on the main shaft bearing. The internal winding coils are fixed and stationary throughout the entire process and do not move with any rotating parts, thus eliminating common faults such as pulling, tangling, aging and breakage of power supply lines at the source. The rotor is symmetrically locked and fixed on the main shaft on both sides of the stator and rotates synchronously with the main shaft. The stator and rotor have uniform clearance and high coaxiality, which completely solves the common problems of vibration and poor fit of traditional motors in the industry.

[0008] (III) Dual-mode full-area heat dissipation structure, strong high temperature resistance and adaptability The rotor has multiple types of heat dissipation blades integrally formed on its outer side. The blades rotate synchronously with the rotor, forming a circulating air duct inside the equipment to achieve active forced convection heat dissipation. The casing is also equipped with exposed natural heat dissipation holes and connection ports that can be connected to sealed ventilation ducts. In normal operation, heat dissipation is achieved through natural convection from the holes. In humid, dusty, or enclosed high-temperature conditions, sealed air ducts can be connected to achieve closed ventilation and heat dissipation, taking into account both heat dissipation efficiency and waterproof and dustproof performance.

[0009] Meanwhile, multiple mechanical locking structures are added to the main spindle bearing position. Through axial limiting, radial buckling, and fastening sleeve, the bearing position is firmly locked to prevent bearing loosening and spindle misalignment during long-term operation, thus ensuring the coaxial operation accuracy of the whole machine for a long time.

[0010] (iv) Non-permanent magnet asynchronous architecture, completely avoiding the risk of demagnetization. This invention does not use any permanent magnets throughout the entire process. It relies solely on the squirrel-cage rotor and the fixed stator to complete the electromagnetic induction energy conversion. It is not affected by high temperature, strong vibration, or high and low temperature environments. It does not have problems with permanent magnet demagnetization or magnetic force attenuation failure. Its high temperature resistance, shock resistance, and aging resistance far exceed those of permanent magnet disc motors. It is suitable for various heavy-duty, high-frequency vibration, and harsh operating environments.

[0011] II. Two reversible inverter core operation modes This invention requires no changes to the mechanical structure and can freely switch between two core operating conditions simply by using commercially available electronic control components. This invention only protects the physical mechanical structure and assembly adaptation method, and does not include existing mature technologies such as electronic control programs, drive circuits, and intelligent control systems. 1. Motor active drive mode An external universal motor drive control module is used to energize the internal windings of the stator and establish a uniform axial rotating magnetic field. The magnetic field drives the rotors on both sides to rotate synchronously with the main shaft, while the central stator remains stationary. The whole machine outputs stable mechanical torque and can be used as a main drive motor and transmission power source in various mechanical equipment.

[0012] 2. External force linkage without self-generated power generation condition With the power supply removed, the main shaft and rotor are passively rotated by natural wind, airflow from the vehicle, and external mechanical transmission. The rotating rotor cuts the magnetic field lines of the fixed stator winding at a uniform speed, generating induced alternating current based on the principle of asynchronous induction. An external rectifier and voltage regulator module can then be used to process the electrical energy, realizing the recovery of kinetic and wind energy for power generation. This can be used for equipment self-powering, energy storage, auxiliary power supply, and range extension.

[0013] 3. Expanding vibration operation conditions Semi-circular and elliptical eccentric counterweights are fixed at the extended positions at both ends of the main shaft. When the main shaft rotates at high speed, the eccentric blocks generate uniform centrifugal vibration force. Relying on the high-precision coaxial structure, the vibration force is guaranteed to be stable and balanced, enabling the equipment to directly possess the complete functions of a vibration motor, such as industrial vibratory screening, material conveying, vibration dust removal, building vibration, and civil health and wellness vibration therapy.

[0014] 4. Fan multi-functional adapter The fan blade assembly comes in two assembly forms: for high-speed, heavy-load scenarios, an auxiliary independent bearing is added, resulting in lower operating resistance and higher heat dissipation and air delivery efficiency; for conventional light-load scenarios, it is directly fixed by interference clamping and snap-locking, which simplifies the structure, makes disassembly and assembly convenient, and ensures sturdiness and durability.

[0015] Three, Five Main Application Adaptation Scenarios In the rail transit sector: it is used as an auxiliary drive component for trains, utilizing the airflow on the train's side to drive an external fan to recover kinetic energy and generate electricity, while also taking into account equipment ventilation and heat dissipation, and freely switching between drive and power generation modes.

[0016] In the field of new energy vehicles: As an integrated component for vehicle drive and kinetic energy recovery, it generates electricity by relying on natural wind during vehicle operation to replenish the vehicle's power. Its structure is shock resistant and adaptable to bumpy driving environments.

[0017] In the field of industrial machinery: It is compatible with power transmission of industrial equipment, forced cooling of units, material vibration screening, and energy-saving energy storage and power generation systems, meeting the needs of heavy-duty industrial applications, high-frequency start-stop, and long-term continuous operation.

[0018] In the aviation and marine industries: used for aircraft and ship electromechanical auxiliary propulsion, cabin ventilation, and airflow recovery power generation; the high-strength coaxial structure is suitable for complex and harsh navigation environments.

[0019] In the civilian sector: it is used in household ventilation equipment, electrical heat dissipation devices, health and wellness vibration therapy equipment, and small household wind-assisted power generation equipment. It has a compact and practical structure and is easy to install and use.

[0020] IV. Scope of Invention Protection The scope of protection includes: the overall mechanical structure, the assembly and connection relationships of components, the internal spatial layout, the multi-functional expansion and installation structure, and the assembly and usage methods adapted to different working conditions; the core protection includes the coaxial linkage circular vertical disk main structure, the centrally fixed stator structure, the side-mounted locking rotor structure, the bidirectional outward extension spindle, the dual-mode heat dissipation structure, the shaft end counterweight vibration structure, and the external fan power generation assembly structure.

[0021] The following are explicitly excluded: commercially available and mature electronic control components and technologies, such as motor drivers, rectifier and voltage regulator modules, electronic control circuits, intelligent control programs, and variable frequency speed control systems, are not within the scope of this invention's innovation and the protection of the claims. Attached Figure Description

[0022] Figure 1. Front view of the overall structure of the coaxial motor reversible inverter (see attached figure in the abstract). Explanation of numerical labels in the attached diagram 1. One-piece protective shell 2. Centered fixed disc stator 3. Left-side disc rotor 4. Right-side disc rotor 5. Through-type center-linked transmission main shaft 6-center support positioning bearing 7. Rotor-integrated axial heat dissipation blades 8. Open-type natural ventilation holes on the outer casing 9. Sealed ventilation duct connection ports 10. Large fan assembly mounting position at the spindle extension end 11 Eccentric Vibration Counterweight Assembly Position 12 Axial limiting locking ring 13 Radial anti-loosening fasteners 14 Bearing locking fastening sleeve 15 Internal coaxial fan Detailed Implementation

[0023] This invention is a coaxial circular disc asynchronous inverter motor device, which is composed of a circular housing, a centrally fixed disc stator, a double-sided symmetrical squirrel cage rotor, a central support bearing, integrated rotor heat dissipation blades, a dual-mode heat dissipation air duct, a bidirectional extended main shaft, an eccentric vibration counterweight, and a detachable fan blade assembly.

[0024] The core assembly structure of the equipment is as follows: the stator is fixedly installed in the main shaft bearing installation area, and the internal winding coil is stationary and fixed throughout the entire process, eliminating the risk of rotation and pulling; the rotors on both sides are locked and fixed to the main shaft end faces on the left and right sides of the stator respectively, and the stator and rotor are precisely coaxial and concentric by relying on the central support bearing, with uniform operating gap and smooth operation without vibration.

[0025] The main shaft extends outwards at both ends with reserved extended shaft sections. The shaft sections can be disassembled and replaced with accessories according to actual needs: adding an eccentric counterweight can achieve stable mechanical vibration function; by replacing the fan blades with different sizes, it can actively rotate to deliver air for heat dissipation when powered on, and passively rotate to generate electricity when powered on without airflow.

[0026] The rotor features integrated multi-specification guide cooling blades on its outer side. When the equipment is running, the blades rotate synchronously, creating a circulating airflow inside the machine to quickly remove internal heat. Multiple natural heat dissipation holes are provided on the surface of the casing to meet daily heat dissipation needs. A sealed interface is reserved on the side of the casing, which can be directly connected to a sealed ventilation duct. This enables closed-loop forced heat dissipation in dusty, humid, and enclosed environments without ventilation, comprehensively improving the equipment's environmental adaptability.

[0027] The spindle bearing assembly position adopts a multi-mechanical locking structure, which uses axial retaining ring for limiting, radial snap-locking to prevent loosening, and fastening sleeve for locking to completely avoid problems such as bearing displacement, spindle movement, and coaxiality misalignment during long-term operation of the equipment, thus greatly extending the overall service life of the equipment.

[0028] This device is easy to assemble and can be used without disassembling the machine body to switch operating conditions: it can be connected to the drive and control system to output power as a drive motor; disconnecting the drive power supply and connecting an external voltage regulator output module can turn it into an external force self-generating device; adding an eccentric counterweight to the shaft end can directly use it as a vibration device. One machine realizes multiple practical functions such as driving, power generation, heat dissipation and vibration.

[0029] The entire machine adopts a pure asynchronous electromagnetic induction working mode, with no permanent magnet components involved in the magnetic field construction. This results in lower production and assembly costs, fewer restrictions on the usage environment, excellent high temperature resistance, vibration resistance, and aging resistance. It is suitable for batch assembly and use in multiple industries and scenarios, has low modification and upgrade difficulty, and is highly practical for market implementation. Beneficial effects

[0030] Significant advantages in structural shape: Abandoning the traditional bulky cylindrical structure, the ultra-thin circular plate layout occupies little space, allowing for flexible installation in multiple postures, and the coaxial linkage design ensures high operating precision and smooth operation, completely solving the problems of large size, limited installation, and vibration during operation of traditional motors.

[0031] Comprehensive upgrade in heat dissipation performance: Built-in rotating air guide blades combined with the dual-mode heat dissipation structure of the casing provide simultaneous internal and external heat dissipation, resulting in high heat dissipation efficiency. It is less prone to heat buildup and aging during continuous high-temperature operation, and its adaptability to harsh working conditions such as waterproofing and dustproofing has been greatly improved.

[0032] Significantly reduced line faults: The stator winding is fixed and stationary, completely eliminating faults such as coil rotation and wear, wire breakage, and short circuits. The equipment has a low failure rate and its long-term stability and service life are significantly improved.

[0033] Free-flowing bidirectional inverter: The same machine can achieve bidirectional energy conversion between electric drive and external power generation, making it energy-saving and environmentally friendly with one machine for two purposes. It eliminates the need to repeatedly purchase multiple types of equipment, reducing equipment investment and installation space costs.

[0034] It has extremely strong functional expandability: relying on the main shaft extension structure, it can quickly realize additional functions such as mechanical vibration, forced ventilation, and wind power generation, covering the needs of all fields such as industrial production, transportation, and home life.

[0035] Highly adaptable to various environments: Designed without permanent magnets, it is not afraid of demagnetization due to high temperatures or strong shocks. The overall structure is robust and durable, and it can work stably for a long time under heavy loads, in bumpy conditions, outdoors, or in enclosed and confined spaces.

[0036] Clear technical distinction and no infringement risk: This invention is a pure asynchronous non-permanent magnet technology route, which is completely different from the applicant's original permanent magnet disc motor patent in terms of structure and principle. The innovation points are clear, the novelty and inventiveness are sufficient, and the patent authorization success rate is high.

[0037] High value for mass production: The overall component structure is simple, the processing difficulty is low, and the assembly is convenient. It can quickly achieve standardized mass production, adapt to the upgrading and replacement of various old motor equipment, and has broad prospects for market popularization and commercial promotion.

Claims

1. A reversible device for a coaxially driven motor, characterized in that: The overall design adopts a coaxial, interconnected, circular disc structure, abandoning the traditional cylindrical asynchronous motor layout. It mainly consists of a disc-shaped housing, a centrally fixed disc stator, a double-sided rotating squirrel-cage rotor, integrated rotor cooling blades, a dual-mode cooling housing, and a bidirectional extended main shaft. The disc stator has built-in winding coils that remain fixed and stationary. The main shaft is mounted on the inner side of the stator via a central bearing, with only the bearing rotating relative to the main shaft. The rotor has no independent excitation coil and is locked and fixed to the end faces of the main shaft on both sides of the stator, rotating synchronously with the main shaft. The stator and rotor are coaxially opposed and assembled. The two ends of the main shaft extend outwards, and the shaft ends can be detached and fitted with semi-circular or elliptical eccentric counterweights. Different specifications of fan blade assemblies can also be replaced.

2. The coaxial linkage motor reversible device according to claim 1, characterized in that: The rotor is integrally formed with vertically arranged S-shaped, spiral, and directional airflow cooling blades on its outer side. The cooling blades rotate synchronously with the rotor, forming directional airflow channels inside the equipment and constructing a forced convection cooling system for the entire machine.

3. The coaxial linkage motor reversible device according to claim 1, characterized in that: The whole machine adopts a three-in-one locking assembly structure. The connection between the spindle and the bearing housing is equipped with a bearing locking and positioning structure. With the help of axial limit ring, radial anti-loosening buckle and locking sleeve, the bearing is limited in both directions, which prevents the spindle from moving axially and radially, and maintains high-precision coaxial stable operation for a long time.

4. The coaxial linkage motor reversible device according to claim 1, characterized in that: The casing has distributed ventilation and heat dissipation holes to achieve natural convection heat dissipation. At the same time, the casing has reserved sealed connection ports, which can be connected to external sealed ventilation ducts to form a closed heat dissipation air duct, suitable for use in normal temperature and normal working conditions as well as in outdoor humid, dusty, and enclosed harsh working conditions.

5. The coaxial linkage motor reversible device according to claim 1, characterized in that: The eccentric counterweights mounted at both ends of the main shaft rotate at high speed with the main shaft, generating a uniform and stable centrifugal eccentric torque, which makes the whole machine output smooth and regular mechanical vibration, realizing the complete operation function of the vibration motor.

6. The coaxial linkage motor reversible device according to claim 1, characterized in that: The fan blade assembly mounted on the main shaft extension section can actively rotate with the main shaft to complete forced airflow for heat dissipation; it can also passively rotate by natural wind or the airflow of the equipment, realizing multi-purpose use and self-generated power generation.

7. The coaxial linkage motor reversible device according to claim 1, characterized in that: This device features two operating modes that can be switched in real time: motor-driven and external force-linked self-generated power. Both modes share the same main mechanical structure, allowing for smooth switching without disassembly or modification of components. In the drive mode, an external general-purpose electronic control module supplies power to the stator windings, establishing an axial rotational magnetic field to drive the main shaft to output mechanical power. In the power generation mode, external force drives the main shaft and rotor to rotate passively, cutting the magnetic field lines of the stator windings to generate induced electrical energy, which is then stably supplied to the outside after being regulated by a voltage stabilization module.

8. The coaxial linkage motor reversible device according to claim 1, characterized in that: The machine integrates multiple functions such as power drive, passive power generation, full-area ventilation and heat dissipation, industrial vibration operation, and health and wellness vibration. It is suitable for five major application scenarios: rail transit, new energy vehicles, industrial machinery, aviation and ships, and civilian life. All functions are realized by relying on the coaxial circular disc-type main structure.

9. A coaxially linked motor reversible device according to any one of claims 1-8, characterized in that: Based on the coaxial linkage main structure, bearing locking structure, dual-mode heat dissipation structure, shaft end counterweight vibration structure, and external fan power generation structure of this invention, the blade specifications can be adjusted, the assembly method can be changed, and the local structure can be optimized according to the installation space and operating conditions. All equivalent substitutions, simple modifications, and equivalent deformations made on the basis of the core technical concept of this invention fall within the protection scope of this invention.

Images