Lightweight screw machine motor structure

Abstract

The utility model discloses a lightweight screw machine motor structure. The motor structure comprises a machine head, a motor cylinder, a stator assembly, a rotor assembly and an air guide assembly. The motor cylinder is made of a light metal material, sleeves the outer side of the stator assembly and is fixedly connected with the machine head; the rotor assembly is rotatably arranged in the stator assembly, and a rotating structure for driving gas to flow is arranged on the rotor assembly; the air guide structure is arranged at the end, away from the machine head, of the motor barrel and used for guiding external air to flow in in the axial direction of the motor barrel. A plurality of heat dissipation channels extending in the axial direction are formed in the motor cylinder, an air flowing path matched with the rotating structure is formed, and air is driven by the rotor assembly to flow along the heat dissipation channels and is exhausted through the end, away from the air guide structure, of the motor cylinder. Through the arrangement, the heat dissipation efficiency of the motor is effectively improved, the overall quality is reduced, and the problems that a traditional screw motor is low in heat dissipation efficiency and heavy in structure are solved.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to a lightweight screw compressor motor structure. Background Technology

[0002] In existing screw compressors, the motor structure, as the core power unit, directly affects the overall performance, energy efficiency, and reliability of the machine. Traditional screw compressor motor structures generally use robust but relatively heavy metal materials to manufacture the motor barrel, in order to improve its mechanical strength and durability. However, while this material choice increases structural rigidity, it significantly increases the overall weight of the machine, which is detrimental to lightweight design requirements, especially in applications with higher demands for energy efficiency and volume-to-weight ratio.

[0003] Furthermore, in terms of motor heat dissipation structure, common designs mainly rely on external fans or natural heat dissipation from the motor surface. These designs have short heat dissipation paths, simple ventilation structures, and fail to create effective internal air circulation. As the motor operates under high load for extended periods, internal heat is difficult to dissipate in time, easily leading to localized overheating and affecting the operational stability and lifespan of the stator and rotor assemblies.

[0004] While some existing designs attempt to improve cooling by adding heat sinks or air ducts, inefficient heat dissipation remains due to improper duct layout or insufficient airflow. Particularly during motor operation, the rotating components cannot effectively coordinate to create a continuous, directional airflow, resulting in a short overall heat dissipation path and high flow resistance, ultimately limiting further optimization of motor performance. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a lightweight screw motor structure. This two-pen holder ensures the stability of the pens during storage, preventing them from easily shaking.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lightweight screw compressor motor structure includes a compressor head, a motor barrel, a stator assembly, a rotor assembly, and an air guide assembly. The motor barrel is made of lightweight metal material and is fitted onto the outside of the stator assembly, with the motor barrel fixedly connected to the compressor head. The rotor assembly is rotatably disposed inside the stator assembly and has a rotating structure for driving gas flow. The air guide assembly is located at the end of the motor barrel away from the compressor head and is used to guide external air to flow in along the axial direction of the motor barrel. The motor barrel has several axially extending heat dissipation channels, forming an airflow path that cooperates with the rotating structure. The air flows along the heat dissipation channels under the drive of the rotor assembly and is discharged through the end of the motor barrel away from the air guide assembly.

[0008] Furthermore, the lightweight metal material is die-cast aluminum.

[0009] Furthermore, the motor barrel is equipped with six heat dissipation channels, which are evenly distributed around the stator assembly.

[0010] Furthermore, each heat dissipation channel is provided with several heat dissipation ribs along the axial direction of the motor cylinder.

[0011] Furthermore, each heat dissipation channel is equipped with 5 heat dissipation fins, which are evenly distributed within the heat dissipation channel.

[0012] Furthermore, the rotating structure is a heat sink disposed on the outer surface of the rotor assembly. The heat sink is arranged radially along the rotor assembly and is used to create an airflow effect when the rotor assembly rotates.

[0013] Furthermore, the end of the motor cylinder away from the air guide assembly is provided with several heat dissipation holes, and each heat dissipation hole is connected to a heat dissipation channel.

[0014] The aforementioned lightweight screw compressor motor structure, by employing a lightweight metal motor barrel, incorporating multiple internal heat dissipation channels and air guiding components, and integrating rotating heat sinks on the rotor assembly, achieves axial guidance and forced flow of air inside the motor. This effectively improves the motor's heat dissipation efficiency, reduces the overall weight of the machine, and solves the problems of low heat dissipation efficiency and bulky structure of traditional screw compressor motors. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the screw compressor motor along the axial direction provided by this utility model;

[0016] Figure 2 This is a radial cross-sectional view of the screw compressor motor provided by this utility model. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] like Figure 1 and Figure 2 As shown, this application provides a lightweight screw compressor motor structure, which includes a compressor head 1, a motor barrel 2, a stator assembly 3, a rotor assembly 4, and an air guide assembly 5.

[0019] Specifically, the motor cylinder 2 is made of lightweight metal and is fitted onto the outside of the stator assembly 3, with the motor cylinder 2 fixedly connected to the head 1. The rotor assembly 4 is rotatably disposed inside the stator assembly 3, and the rotor assembly 4 is provided with a rotating structure 6 for driving gas flow. The air guide assembly 5 is disposed at the end of the motor cylinder 2 away from the head 1, and is used to guide external air to flow in along the axial direction of the motor cylinder 2. The motor cylinder 2 is provided with several axially extending heat dissipation channels 21, forming an air flow path that cooperates with the rotating structure 6. The air flows along the heat dissipation channels 21 under the drive of the rotor assembly 4 and is discharged through the end of the motor cylinder 2 away from the air guide assembly 5.

[0020] Through the above-mentioned configuration, the overall mass of the motor is significantly reduced, which helps to improve the energy efficiency ratio and system integration efficiency of the screw compressor. Simultaneously, the multiple heat dissipation channels 21 between the motor barrel 2 and the stator assembly 3, in conjunction with the rotor rotation structure 6, form an active cooling system. This system creates a forced ventilation flow field during motor operation, effectively improving heat dissipation performance and extending the motor's service life. Furthermore, the combined design of the air guide assembly 5 and the heat dissipation holes 23 ensures a clear cooling airflow path, resulting in more concentrated and faster heat dissipation.

[0021] More specifically, the lightweight metal material is die-cast aluminum. Die-cast aluminum has a low density, which helps reduce overall weight. At the same time, its thermal conductivity is superior to most structural metals, enabling it to quickly conduct the heat generated during stator and rotor operation to the outside of the motor casing 2. Furthermore, the die-casting process is suitable for mass production, producing parts with high dimensional accuracy and smooth surfaces, which facilitates subsequent assembly and matching, reduces production costs, and improves reliability.

[0022] like Figure 2 As shown, the motor cylinder 2 has six heat dissipation channels 21, evenly distributed around the stator assembly. This results in a more uniform heat distribution within the motor cylinder 2, which helps maintain a stable temperature field during motor operation. Furthermore, the cooling air is guided by multiple paths, effectively preventing localized insufficient cooling caused by excessive air resistance in any one channel. It should be understood that the number of heat dissipation channels 21 can be adjusted according to cooling requirements.

[0023] Furthermore, each heat dissipation channel 21 is provided with several heat dissipation ribs 22 along the axial direction of the motor cylinder 2, thereby increasing the heat exchange surface area and significantly improving the heat exchange efficiency per unit volume of the channel. At the same time, it can optimize the cooling airflow path, reduce the formation of turbulent areas, and improve the smoothness of cooling gas flow.

[0024] Furthermore, each heat dissipation channel 21 is provided with 5 heat dissipation ribs 22, which are evenly distributed within the heat dissipation channel 21 to balance the flow area and heat exchange area of ​​the channel cross-section, ensuring the flow rate and throughput of the cooling airflow. It should be understood that in practical applications, the number of heat dissipation ribs 22 can be adjusted to 3, 4 or more depending on the heat load. For example, in high-power applications, 6 to 8 ribs can be added to improve heat exchange capacity. In compact structural designs, non-equidistant arrangement or segmented design of some ribs can be used to balance heat exchange performance and channel unobstructed flow.

[0025] like Figure 1 As shown, the rotating structure 6 is a heat sink set on the outer surface of the rotor assembly 4. The heat sink is arranged radially along the rotor assembly 4 and is used to create an airflow effect when the rotor assembly 4 rotates, which significantly improves the heat dissipation capacity while ensuring the simplicity of the system.

[0026] The motor cylinder 2 has several heat dissipation holes 23 at the end away from the air guide assembly 5. Each heat dissipation hole 23 is connected to a heat dissipation channel 21, which can achieve precise airflow control and reduce wind pressure interference between channels.

[0027] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A lightweight screw motor structure, characterized by, Including machine head (1), motor cylinder (2), stator assembly (3), rotor assembly (4) and air guide assembly (5);The motor cylinder (2) is made of light metal material, is sleeved on the outer side of the stator assembly (3), and the motor cylinder (2) is fixedly connected with the machine head (1);The rotor assembly (4) is rotatably arranged in the stator assembly (3), and the rotor assembly (4) is provided with a rotating structure (6) for driving gas flow;The air guide assembly (5) is arranged at one end of the motor cylinder (2) away from the machine head (1), for guiding external air to flow into along the axial direction of the motor cylinder (2);The motor cylinder (2) is provided with a plurality of heat dissipation channels (21) extending in the axial direction, forming an air flow path matched with the rotating structure (6), and air flows along the heat dissipation channel (21) under the driving of the rotor assembly (4) and is discharged from one end of the motor cylinder (2) away from the air guide assembly (5).

2. The lightweight screw motor structure according to claim 1, characterized by, The light metal material is die-cast aluminum material.

3. The light-weight screw motor structure according to claim 1, wherein The motor cylinder (2) is provided with six heat dissipation channels (21), which are uniformly arranged around the stator assembly (3).

4. The light-weight screw machine motor structure of claim 1, wherein Each heat dissipation channel (21) is provided with a plurality of heat dissipation ribs (22) in the axial direction of the motor cylinder (2).

5. The light-weight screw motor structure according to claim 4, wherein Each heat dissipation channel (21) is provided with five heat dissipation ribs (22), and the heat dissipation ribs (22) are uniformly arranged in the heat dissipation channel (21).

6. The light-weight screw machine motor structure of claim 1, wherein The rotating structure (6) is a cooling fin arranged on the outer surface of the rotor assembly (4), which is arranged along the radial direction of the rotor assembly (4) and is used for forming an air guide effect when the rotor assembly (4) rotates.

7. The light-weight screw machine motor structure of claim 1, wherein The end of the motor cylinder (2) away from the air guide assembly (5) is provided with a plurality of heat dissipation holes (23), and each heat dissipation hole (23) is connected with one heat dissipation channel (21).

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