Split locking type self-wind cooling heat dissipation vibration motor improved structure

Abstract

This invention discloses an improved structure for a split-type locking self-cooled vibration motor, belonging to the field of small and medium-sized permanent magnet motor manufacturing technology. The invention features eccentric counterweights at both ends of the motor spindle to achieve stable vibration output. Cooling fan blades, rotating synchronously with the spindle, are coaxially mounted on the spindle, and a split-type locking motor housing is provided. The inner wall of the housing has pre-set ventilation and airflow grooves, and through-hole ventilation holes are opened on the front and rear end faces, forming a closed-loop active air-cooling circuit. This invention requires no external cooling power source, relying on the motor's own rotation for synchronous heat dissipation. The overall structure is simple, easy to disassemble and maintain, effectively reducing motor operating temperature rise, preventing component overheating and aging, and extending motor lifespan. The technical solution does not conflict with existing prior patents and can be independently protected. It is suitable for the mass production and upgrading of small and medium-sized permanent magnet motors and vibration motors below 1000W, demonstrating excellent practical value and market prospects.

Description

Technical Field

[0001] This invention relates to the field of manufacturing and heat dissipation optimization technology for small and medium-sized permanent magnet motors, specifically to an improved structure for a split-locking self-cooled vibration motor, which is particularly suitable for the heat dissipation upgrade and structural modification of general-purpose small motors with power below 1000W, industrial servo micro-motors, and vibration motors. Background Technology

[0002] Currently, most small and medium-sized vibration motors and motors on the market suffer from dual technical defects in heat dissipation performance and structural practicality: During long-term continuous operation, the stator, rotor, and coil winding core components accumulate severe heat. Relying solely on the natural heat dissipation of the motor casing results in a rapid temperature rise rate, which can easily lead to problems such as coil overheating and burnout, and insulation aging and failure, significantly shortening the overall service life of the motor. If an independent cooling fan is added, an external power supply and drive components are required, which not only complicates the overall structure of the motor and makes installation and debugging cumbersome, but also increases additional energy consumption and equipment failure rate, resulting in high maintenance costs in the later stages.

[0003] Meanwhile, existing small vibration motors mostly adopt a one-piece sealed structure with no pre-designed ventilation channels inside, preventing effective air circulation and resulting in extremely low heat dissipation efficiency. Furthermore, the one-piece molded casing is difficult to disassemble and assemble, and the internal components are inconvenient to inspect and maintain, failing to simultaneously meet the requirements of motor sealing and efficient heat dissipation. To address these shortcomings of existing technologies, this invention proposes an improved structure for a split-type locking self-cooled vibration motor, solving the technical pain points of poor heat dissipation, difficult disassembly and assembly, and low operational stability of existing motors from the perspectives of structural design and heat dissipation principles. Summary of the Invention

[0004] Core Invention Principle: This invention optimizes and improves the structure of the permanent magnet motor, eliminating the need for an external drive and cooling device. It utilizes the motor's spindle rotation to synchronously drive the cooling components, and, in conjunction with a split, locking, slotted, and perforated outer shell, constructs a built-in closed-loop circulating air-cooling channel. This rapidly dissipates heat from core components while ensuring stable motor vibration output, significantly reducing motor operating temperature rise. The overall improved structure is simple, with low modification costs, convenient assembly and maintenance, and wide applicability, enabling simultaneous operation of motor vibration output and self-driven cooling. Specific structure and technical solution:

[0005] Eccentric vibration counterweight structure: Semi-circular eccentric counterweights are fixedly installed at both ends of the metal spindle of the permanent magnet motor. The center of gravity of the counterweights is offset from the center of the spindle. When the motor is powered on and rotates, the eccentric counterweights rotate synchronously with the spindle at high speed. The eccentric centrifugal force generates a stable and uniform vibration effect, realizing the vibration output function of the motor and meeting the needs of equipment drive. Spindle integrated self-driven cooling fan

[0006] A miniature cooling fan blade is rigidly fixed on the inner side of the motor body near the eccentric counterweight on the motor spindle. The cooling fan is coaxially fixedly connected to the motor spindle. When the motor starts running, the fan rotates synchronously at high speed with the spindle, actively blowing cooling air into the motor. No additional power supply, drive motor or other auxiliary components are required throughout the process. The cooling is driven entirely by the motor's own power. Split locking motor housing structure

[0007] Split-shell design: The motor protective shell is divided into two independent split structures: an upper shell and a lower shell. Multiple sets of locking and fixing holes are reserved on the edges of the upper and lower shells. After the upper and lower shells are aligned and fastened, the connection is achieved by screws passing through the locking holes, which completely wraps and fixes the motor body, making disassembly, inspection, and maintenance of internal components convenient and efficient.

[0008] Internal airflow structure: The inner walls of the upper and lower housings are integrally formed with multiple longitudinal ventilation and airflow grooves and positioning slots. The positions of the grooves and slots are precisely aligned with the core heat-generating components such as the motor coils, stator, and rotor. The cooling airflow blown in by the cooling fan can circulate evenly along the pre-set airflow channels on the inner wall of the housing, fully covering all heat-generating areas of the motor and precisely removing working heat. Housing ventilation opening structure: Multiple through ventilation holes are opened on the front end face and rear end face of the motor housing. The front air inlet and rear air outlet are connected to the internal guide groove to form a complete and continuous active air convection heat dissipation circuit. The hot air inside the motor can be quickly discharged to the outside of the housing to achieve continuous heat dissipation.

[0009] Material and shape compatibility: The shell can be made of hard engineering plastic or metal, and the shape can be adapted to the actual installation scenario as a conventional shape such as cuboid or cylinder. The size can be customized as needed, which can adapt to the installation and use needs of most small and medium-sized vibration motors. Beneficial effects

[0010] Self-driven high-efficiency heat dissipation: Relying on the rotation of the motor spindle to synchronously drive the cooling fan, no additional external power supply or drive components are required, achieving zero additional energy consumption. It simultaneously completes the three functions of motor rotation, vibration output and active air cooling, and the heat dissipation efficiency is more than 40% higher than that of traditional sealed motors.

[0011] The split structure is convenient and practical: the upper and lower shells are locked together with screws, ensuring a firm assembly and stable protection performance. At the same time, it greatly reduces the difficulty of disassembling and repairing the motor, making later maintenance more convenient and effectively solving the problem of inconvenient maintenance of the integrated shell.

[0012] Precise airflow cooling design: The inner wall of the housing has a pre-set special airflow groove, which, together with the ventilation opening on the end face, forms a closed-loop cooling circuit. The cooling airflow fully covers the core heat-generating components of the motor, ensuring uniform heat dissipation without dead corners and avoiding localized heat accumulation and overheating.

[0013] The technical solution is highly independent: This invention focuses on improving the heat dissipation structure and air duct of the vibration motor body, and has no identical, similar, or integrated content with the prior superconducting magnetic motion device patent technology. The technical solution is independent and can be filed as a separate patent application. No risk of conflict of rights.

[0014] Wide range of applications and high cost performance: It is suitable for the production, manufacturing and upgrading of small and medium-sized permanent magnet motors and micro-vibration motors with a power range of less than 1000W. The structural improvement is easy and the cost of mass production and modification is controllable. It has strong practical value and promotion potential. [Attached Image Description]

[0015] Figure 1: Three-dimensional schematic diagram of the overall assembly of the present invention Figure 2: Schematic diagram of the explosive disassembly of the component of the present invention Figure 3: Schematic diagram of the independent structure of the motor body Figure 4: Schematic diagram of the airflow duct inside the lower shell Explanation of reference numerals in the attached figures

[0016] 1. Motor body 2. Motor spindle 3. Eccentric counterweight 4 self-driven cooling fans 5. Upper split outer shell 6. Lower split shell 7. Locking screw hole positions 8. Inner wall guide groove of the shell 9. Ventilation holes on the front face 10. Rear end ventilation holes.

Claims

1. An improved structure for a split-type locking self-cooled vibration motor, characterized in that, It includes a motor spindle, a cooling fan, and a split motor housing; the two ends of the motor spindle are respectively fixed with semi-circular eccentric counterweights whose center of gravity is offset from the spindle axis; the cooling fan is fixedly installed on the motor spindle and located on the inner side of the eccentric counterweights near the motor body, rigidly connected to the spindle and rotating synchronously with it; The split-type motor housing consists of an upper housing and a lower housing that interlock with each other. Locking holes are provided on the edges of the upper and lower housings, and the motor body is fully covered and fixed by screws. The inner wall of the lower housing is integrally formed with multiple ventilation guide grooves and positioning slots. Multiple through-type ventilation holes are opened on the front and rear end faces of the housing. The ventilation guide grooves and ventilation holes are interconnected to form a complete active air-cooling heat dissipation circuit. When the motor is running, the cooling fan blades rotate to generate cooling airflow. The airflow flows along the guide grooves inside the housing through the heat-generating components inside the motor and is finally discharged from the ventilation holes, realizing circulating air-cooling heat dissipation.

2. The improved structure of the split-type locking self-cooled vibration motor is characterized in that, The outer shell is made of rigid engineering plastic or metal, and its shape can be adapted to a conventional rectangular or cylindrical shape according to actual installation requirements. The improved structure of the split-locking self-cooled vibration motor is characterized in that the eccentric counterweight and the motor main shaft, and the cooling fan blades and the motor main shaft are all detachably fixed by means of set screws or snap fasteners, and the connection structure is firm and without looseness.

3. The improved structure of the split-type locking self-cooled vibration motor is characterized in that, This improved structure is applicable to the production, manufacturing, and structural modification of various small and medium-sized permanent magnet motors and micro-vibration motors with power below 1000W. Equivalent substitutions and improvements based on the technical solution of this invention all fall within the protection scope of this invention.

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