Integrated small-sized screw machine

By integrating the air tank, compression components, variable frequency speed control module, and control module, the problem of the dispersed structure of traditional screw air compressors is solved, achieving compact and efficient equipment operation and simplified maintenance, and improving the stability and energy efficiency of the system.

CN223839331UActive Publication Date: 2026-01-27XINLEI COMPRESSOR CO LTD
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Patent Information

Application Number
CN202520953623.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-01-27
Estimated Expiration
2035-05-14

AI Technical Summary

Technical Problem

Traditional screw air compressors have a dispersed structure, occupy a large space, are complex to install and wire, are inconvenient to maintain, and are easily affected by external interference, which can affect their operational stability.

Method used

The integrated design integrates the air tank, compression assembly, variable frequency speed control module and control module on the support plate, and combines cooling assembly, oil mist separation assembly and walking parts to achieve modular management and compact structure.

Benefits of technology

It simplifies installation space, improves equipment integration, enhances system response speed and operational stability, reduces maintenance difficulty and energy waste, and improves the overall efficiency and reliability of the equipment.

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Abstract

The utility model discloses an integrated small-sized screw machine. The screw machine comprises an air storage tank, a compression assembly, a frequency conversion speed regulation module and a control module, a supporting plate is arranged at the top of the gas storage tank; the compression assembly is arranged on the supporting plate and comprises a driving motor and a compression rotor; the driving motor is connected with the compression rotor and can drive the compression rotor to rotate; the compression assembly is communicated with the air storage tank; the variable-frequency speed regulation assembly is arranged on the compression assembly and is used for realizing variable-frequency regulation and control of the driving motor; and the control module is arranged on the compression assembly, is integrated with the variable-frequency speed regulation module and is used for performing parameter setting and operation control on the variable-frequency speed regulation module. Through the arrangement, the screw machine is more compact in structure and higher in function integration degree.
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Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to an integrated small screw compressor. Background Technology

[0002] A screw air compressor mainly consists of a screw compressor unit, a motor, a cooling system, and a control system. Its working principle is that the motor drives the screw compressor unit to draw in and compress air, and then discharges the compressed air.

[0003] Traditional screw air compressors typically employ a split design, with the main unit, inverter, and control module arranged independently. This type of equipment has a relatively dispersed structure, occupies a large space, and is complex to install and wire, making maintenance and operation inconvenient; in some space-constrained applications, deployment is difficult. Furthermore, because the control module and inverter module are independently located, the stability of the equipment's operation is susceptible to external interference, which can affect system response and operational accuracy. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an integrated miniature screw compressor. This screw compressor has a compact structure and a higher degree of functional integration.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An integrated small screw compressor includes: an air tank, a compression assembly, a variable frequency speed control module, and a control module; a support plate is mounted on the top of the air tank; the compression assembly is mounted on the support plate and includes a drive motor and a compression rotor; the drive motor is connected to the compression rotor and can drive the compression rotor to rotate; the compression assembly is connected to the air tank; the variable frequency speed control module is mounted on the compression assembly and is used to realize variable frequency control of the drive motor; the control module is mounted on the compression assembly and integrated with the variable frequency speed control module, and is used to set parameters and control the operation of the variable frequency speed control module.

[0007] Furthermore, the screw compressor also includes a cooling assembly mounted on a support plate and connected to the compression assembly.

[0008] Furthermore, the cooling assembly includes a fan and an oil reservoir. The fan is at least partially mounted on the support plate, and the oil reservoir is connected to the fan via a pipe. The oil reservoir is also connected to the interior of the compression assembly via a pipe.

[0009] Furthermore, the screw compressor also includes an oil mist separation component, which is mounted on a support plate and connected to the air outlet of the compression component. The oil mist separation component is also connected to the interior of the air storage tank.

[0010] Furthermore, the oil mist separation assembly is equipped with an oil return pipe at the bottom, which is connected to the oil storage unit.

[0011] Furthermore, the screw compressor also includes a traveling component, which is installed at the bottom of the screw compressor.

[0012] The aforementioned integrated small screw compressor simplifies the structural design, reduces installation space, and improves the integration and modular management efficiency of the equipment by setting a support plate on the top of the gas storage tank and integrating the compression component, variable frequency speed control module, and control module on the compression component. At the same time, it facilitates system control and maintenance, and solves the problems of traditional screw compressors such as dispersed structure, complex wiring, and inconvenient installation and maintenance. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the integrated small screw compressor provided by this utility model. Detailed Implementation

[0014] 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.

[0015] like Figure 1 As shown, this application provides an integrated small screw compressor, which includes: an air tank 1, a compression assembly 3, a variable frequency speed control module 4, and a control module.

[0016] Specifically, a support plate 2 is mounted on the top of the gas storage tank 1. A compression assembly 3, including a drive motor 31 and a compression rotor 32, is mounted on the support plate 2. The drive motor 31 is connected to the compression rotor 32 and can drive the compression rotor 32 to rotate. The compression assembly 3 is connected to the gas storage tank 1. A variable frequency speed control assembly is mounted on the compression assembly 3 to achieve variable frequency control of the drive motor 31. A control module is mounted on the compression assembly 3 and integrated with the variable frequency speed control module 4 for setting parameters and controlling the operation of the variable frequency speed control module 4.

[0017] Through integrated design, the screw compressor improves the compactness of the equipment structure, reduces the number of connecting parts, and helps to reduce assembly costs and equipment size. By integrating the variable frequency speed control module 4 with the control module on the compression assembly 3, the system's response speed is accelerated, operation is simplified, and fault diagnosis and maintenance are facilitated. At the same time, the variable frequency drive mode can flexibly adjust the motor power according to the system load requirements, reducing energy waste and improving the energy efficiency ratio.

[0018] More specifically, the screw compressor also includes a cooling assembly 5, which is mounted on the support plate 2 and connected to the compression assembly 3. By adding the cooling assembly 5, the operating temperature of the compression assembly 3 can be significantly reduced, improving the overall operational stability and service life of the equipment. The independent configuration of the cooling module also facilitates later maintenance or replacement operations, increasing the system's modularity. This structure also avoids thermal interference from high temperatures on the variable frequency speed control module 4 and the control module, ensuring their operational accuracy and control response speed, effectively improving the overall reliability and efficiency of the machine.

[0019] Furthermore, the cooling assembly 5 includes a fan 51 and an oil reservoir 52. The fan 51 is at least partially mounted on the support plate 2, and the oil reservoir 52 is connected to the fan 51 via a pipe. The oil reservoir 52 is also connected to the interior of the compression assembly 3 via a pipe. This configuration effectively improves heat dissipation efficiency and enhances the ability to control the operating temperature of the compression assembly 3.

[0020] Furthermore, the screw compressor also includes an oil mist separation component 6, which is mounted on the support plate 2 and connected to the outlet of the compression component 3. The oil mist separation component 6 is also connected to the interior of the air storage tank 1. By introducing the oil mist separation component 6, the cleanliness of the screw compressor's output gas can be significantly improved, preventing oil mist from entering the air storage tank 1 and causing internal contamination and corrosion, thus extending the service life of the air storage system. At the same time, this component reduces the risk of oil contamination to downstream pneumatic equipment, ensuring the stable operation and maintenance cycle of the entire pneumatic system.

[0021] The oil mist separation component 6 is equipped with an oil return pipe 61 at the bottom, which is connected to the oil storage component 52, thereby significantly improving the utilization rate of lubricating oil, reducing consumable costs, and avoiding manual periodic oil draining operations, thus improving the automation level of the system.

[0022] The screw compressor also includes a traveling component 7, which is installed at the bottom of the air tank 1. The traveling component 7 can be in the form of casters, rollers or slide rails, so that the whole machine can move flexibly in the factory area or work site.

[0023] 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. An integrated small screw compressor, characterized in that, include: Gas storage tank (1), with a support plate (2) installed on the top of the gas storage tank (1); Compression assembly (3), which is mounted on the support plate (2), includes a drive motor (31) and a compression rotor (32); the drive motor (31) is connected to the compression rotor (32) and can drive the compression rotor (32) to rotate; the compression assembly (3) is connected to the gas storage tank (1); Variable frequency speed control module (4), the variable frequency speed control module (4) is installed on the compression component (3) and is used to realize the variable frequency control of the drive motor (31); The control module is installed on the compression component (3) and integrated with the variable frequency speed control module (4) for setting parameters and controlling the operation of the variable frequency speed control module (4).

2. The integrated small screw compressor as described in claim 1, characterized in that, The screw compressor also includes a cooling assembly (5), which is mounted on the support plate (2) and communicates with the compression assembly (3).

3. The integrated small screw compressor as described in claim 2, characterized in that, The cooling assembly (5) includes a fan (51) and an oil reservoir (52). The fan (51) is at least partially disposed on the support plate (2). The oil reservoir (52) is connected to the fan (51) via a pipeline. The oil reservoir (52) is connected to the interior of the compression assembly (3) via a pipeline.

4. The integrated small screw compressor as described in claim 3, characterized in that, The screw compressor also includes an oil mist separation component (6), which is installed on the support plate (2) and connected to the air outlet of the compression component (3). The oil mist separation component (6) is also connected to the interior of the air storage tank (1).

5. The integrated small screw compressor as described in claim 4, characterized in that, The oil mist separation component (6) is provided with an oil return pipe (61) at the bottom, which is connected to the oil storage component (52).

6. The integrated small screw compressor as described in claim 1, characterized in that, The screw compressor also includes a traveling component (7), which is installed at the bottom of the gas storage tank (1).