Novel synchronous motor

Abstract

The utility model provides a novel synchronous motor, and belongs to the field of motors. The problem that an existing motor is poor in heat dissipation efficiency is solved. The novel synchronous motor comprises a motor shell, a stator and rotor assembly, an air cooling fan and a connecting shaft, the connecting shaft sequentially penetrates through the air cooling fan and the stator and rotor assembly, a plurality of through holes are evenly formed in the outer portion of the motor shell in the circumferential direction, separation nets are arranged in the through holes, the novel synchronous motor further comprises a heat dissipation mechanism, and the heat dissipation mechanism is composed of a plurality of guide vanes and connecting pieces. The multiple guide vanes are arranged in a vortex structure, the rotating direction of the guide vanes is arranged in an involute mode, the guide vanes and the connecting piece jointly form a composite channel cavity, the stator and rotor assembly is located in the composite channel cavity, the connecting shaft sequentially penetrates through the air cooling fan, the stator and rotor assembly and the connecting piece and is fixedly connected with the connecting piece, and the air cooling fan, the guide vanes and the connecting piece are synchronously driven to rotate through rotation of the connecting shaft. The LED lamp has the advantage of high heat dissipation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of electric motors, and relates to an electric motor, and more particularly to a novel synchronous motor. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Traditionally, motors were housed in protective casings for protection. However, while these casings offered better protection, they also resulted in poor heat dissipation. Currently, most motor cooling systems rely on fans installed at the motor's end, leading to low overall airflow efficiency and unsatisfactory heat exchange. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel synchronous motor to solve these problems.

[0004] The purpose of this utility model can be achieved through the following technical solution: A novel synchronous motor, comprising a motor housing, a stator and rotor assembly, a fan-cooled fan and a connecting shaft, wherein the connecting shaft passes through the fan-cooled fan and the stator and rotor assembly in sequence, characterized in that the motor housing is provided with a plurality of through holes in the outer circumferential direction to improve heat dissipation efficiency, and an isolation mesh is provided inside the through holes;

[0005] The novel synchronous motor also includes a heat dissipation mechanism;

[0006] The heat dissipation mechanism consists of multiple circumferentially distributed guide vanes and an integrated connector. The multiple guide vanes are arranged in a vortex structure with their rotation direction gradually opening, and together with the connector, they form a composite channel cavity.

[0007] The stator and rotor assembly is located inside the composite channel cavity. The connecting shaft passes through the air-cooled fan, the stator and rotor assembly and the connector in sequence, and is fixedly connected to the connector. The rotation of the connecting shaft synchronously drives the air-cooled fan, guide vanes and connector to rotate. By utilizing the swirling effect of the composite channel cavity, all-round air cooling heat dissipation of the stator and rotor assembly is achieved.

[0008] In the aforementioned novel synchronous motor, the end portion of the motor housing has a heat dissipation grille for improving airflow exchange efficiency.

[0009] In the aforementioned novel synchronous motor, the involute radius of curvature of the guide vane is positively correlated with the rotational speed of the connecting shaft, and the windward surface of the guide vane is provided with a hydrodynamic tilt angle of 5°-15°.

[0010] In the aforementioned novel synchronous motor, the connecting shaft adopts a split stepped shaft structure, which is fixedly connected to the connecting component through a spline connection.

[0011] Compared with existing technologies, this new synchronous motor can achieve air cooling of the stator and rotor components through the combination of guide vanes and connecting parts. Compared with traditional unidirectional air cooling, the composite vortex increases the heat dissipation area by more than 40% and reduces the temperature difference of rotor hot spots to within 8°C, making it suitable for high power density scenarios. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the new synchronous motor.

[0013] Figure 2 This is a schematic diagram of the internal three-dimensional structure of this novel synchronous motor.

[0014] In the diagram, 1 is the motor housing; 2 is the stator and rotor assembly; 3 is the air-cooled fan; 4 is the through hole; 5 is the isolation mesh; 6 is the guide vane; 7 is the connector; and 8 is the heat dissipation grille. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1 , Figure 2 As shown, this novel synchronous motor includes a motor housing 1, a stator-rotor assembly 2, a cooling fan 3, and a connecting shaft. The connecting shaft passes sequentially through the cooling fan 3 and the stator-rotor assembly. The motor housing 1 has multiple through holes 4 on its outer circumference to improve heat dissipation efficiency. An isolation mesh 5 is installed inside each through hole 4. The novel synchronous motor also includes a heat dissipation mechanism, which consists of multiple circumferentially arranged guide vanes 6 and an integrated connector 7. The guide vanes 6 are arranged in a vortex structure with an involute rotation direction, forming a composite channel cavity with the connector 7. The stator-rotor assembly 2 is located inside the composite channel cavity. The connecting shaft passes sequentially through the cooling fan 3, the stator-rotor assembly 2, and the connector 7, and is fixedly connected to the connector 7. The rotation of the connecting shaft synchronously drives the cooling fan 3, the guide vanes 6, and the connector 7 to rotate. Utilizing the swirling effect of the composite channel cavity, all-around air cooling of the stator-rotor assembly 2 is achieved. The motor housing 1 has a heat dissipation grille 8 at its end to improve airflow exchange efficiency. The involute radius of curvature of the guide vane 6 is positively correlated with the rotational speed of the connecting shaft. The windward side of the guide vane 6 has a hydrodynamic tilt angle of 5°-15°. The connecting shaft adopts a split stepped shaft structure, which is fixedly connected to the mating section of the connecting piece 7 by a spline fit.

[0017] Through the structural cooperation of guide vane 6 and connector 7, the stator and rotor assembly 2 can be cooled by air. Compared with traditional unidirectional air cooling, the composite vortex increases the heat dissipation area by more than 40% and reduces the temperature difference of rotor hot spots to within 8°C, which is suitable for high power density scenarios.

[0018] Working principle

[0019] The connecting shaft synchronously drives the air-cooled fan 3, guide vanes 6, and connecting parts 7 to rotate via splines. The involute arrangement of the guide vanes 6 forms a vortex airflow. The airflow forms a spiral motion path within the composite channel cavity, covering the three-dimensional space of the stator and rotor assembly 2, enhancing heat dissipation through forced convection and turbulence effects. The involute radius of curvature of the guide vanes 6 is positively correlated with the rotational speed; the curvature increases at high speeds, extending the airflow contact time; the curvature decreases at low speeds, maintaining airflow penetration. A 5°-15° tilt angle on the windward side optimizes aerodynamic performance and reduces wind resistance and noise. The front air-cooled fan 3 generates the axial main airflow, the guide vanes 6 form a radial secondary flow through swirling, and the end heat dissipation grille 8 accelerates exhaust gas discharge through negative pressure, forming a three-stage heat dissipation chain of "axial intake - swirling diffusion - negative pressure discharge".

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document uses a lot of technical terms, the possibility of using other terms is not excluded. These terms are used merely to facilitate the description and explanation of the essence of this invention; interpreting them as any kind of additional limitation would contradict the spirit of this invention.

Claims

1. A novel synchronous motor, comprising a motor housing (1), a stator-rotor assembly (2), an air-cooled fan (3), and a connecting shaft, wherein the connecting shaft passes sequentially through the air-cooled fan (3) and the stator-rotor assembly, characterized in that, The motor housing (1) is provided with multiple through holes (4) in the outer circumference to improve heat dissipation efficiency, and an isolation mesh (5) is provided inside the through hole (4). The novel synchronous motor also includes a heat dissipation mechanism; The heat dissipation mechanism consists of multiple circumferentially distributed guide vanes (6) and an integrated connector (7). The multiple guide vanes (6) are arranged in a vortex structure with their rotation direction gradually opening, and together with the connector (7) form a composite channel cavity. The stator and rotor assembly (2) is located inside the composite channel cavity. The connecting shaft passes through the air-cooled fan (3), the stator and rotor assembly (2) and the connector (7) in sequence, and is fixedly connected to the connector (7). The air-cooled fan (3), the guide vane (6) and the connector (7) are driven to rotate synchronously by the rotation of the connecting shaft. The swirling effect of the composite channel cavity is used to achieve all-round air cooling of the stator and rotor assembly (2).

2. The novel synchronous motor according to claim 1, characterized in that, The motor housing (1) has a heat dissipation grille (8) at its end to improve airflow exchange efficiency.

3. A novel synchronous motor according to claim 1, characterized in that, The involute radius of curvature of the guide vane (6) is positively correlated with the rotational speed of the connecting shaft, and the windward surface of the guide vane (6) is provided with a hydrodynamic tilt angle of 5°-15°.

4. A novel synchronous motor according to claim 1, characterized in that, The connecting shaft adopts a split stepped shaft structure, and it is fixedly connected to the connecting part (7) through spline connection.

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