Simple screw blower

Abstract

The utility model discloses a simple screw blower. The air blower comprises a shell, the shell is internally provided with a containing cavity, the front end face of the shell is provided with an air inlet, and the right end face of the shell is provided with an air outlet; a filtering assembly, a silencing assembly, a driving motor and a fan are sequentially arranged in the accommodating cavity from front to back; the left and right ends of the filtering assembly and the silencing assembly are respectively fixed to the inner wall of the shell; the driving motor is arranged at the bottom of the accommodating cavity; the fan comprises a machine shell and an impeller arranged in the machine shell, the machine shell is fixedly connected with the driving motor, the impeller is connected with an output shaft of the driving motor, and the fan is communicated with the air outlet. Through the arrangement, the air blower is simple in structure, compact in layout and high in function integration degree. Meanwhile, the airflow path covers the driving motor area, air cooling of the motor is effectively achieved, an additional cooling device is avoided, the energy efficiency ratio of the system is increased, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of blower technology, and in particular to a simple screw blower. Background Technology

[0002] A blower is a gas conveying device commonly used in industrial and civil systems. It features high air pressure and stable air delivery and is widely used in ventilation, equipment cooling, dust removal, combustion assistance, and other applications.

[0003] In existing technologies, filter components, silencing structures, motors, and fans need to be fixed separately, requiring multiple mounting mechanisms, resulting in a fragmented overall structure. Furthermore, motor cooling requires additional air-cooling channels or radiators, which not only occupies installation space but also increases the design and maintenance burden. The weak coupling and dispersed layout of components make disassembly and reassembly difficult in case of failure, impacting equipment maintenance efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a simplified screw blower. This high-speed blower features a simple structure, high integration, and convenient assembly and maintenance.

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

[0006] A simple screw blower includes: a housing with a receiving cavity inside; an air inlet on the front end face of the housing and an air outlet on the right end face; a filter assembly, a silencer assembly, a drive motor, and a blower are arranged sequentially from front to back inside the receiving cavity; the left and right ends of the filter assembly and the silencer assembly are respectively fixed to the inner wall of the housing; the drive motor is installed at the bottom of the receiving cavity; the blower includes a housing and an impeller disposed inside the housing, the housing is fixedly connected to the drive motor, the impeller is connected to the output shaft of the drive motor, and the blower is connected to the air outlet.

[0007] Furthermore, the filter assembly includes a first filter plate and a second filter plate arranged in a front-to-back direction, with the top and bottom of the first filter plate and the second filter plate connected by sheet metal parts; the first filter plate and the second filter plate are respectively provided with a plurality of filter holes; and filter cotton is provided between the first filter plate and the second filter plate.

[0008] Furthermore, the left and right ends of the first filter plate and / or the second filter plate are respectively provided with first fixing members, and the filter assembly is fixed to the inner wall of the housing by the first fixing members.

[0009] Furthermore, the noise reduction assembly includes a first noise reduction plate and a second noise reduction plate arranged in the front-to-back direction, with the top and bottom of the first noise reduction plate and the second noise reduction plate connected by sheet metal parts; the first noise reduction plate and the second noise reduction plate are provided with through holes for ventilation at corresponding positions; and noise reduction cotton is provided between the first noise reduction plate and the second noise reduction plate.

[0010] Furthermore, the left and right ends of the first and / or second sound-absorbing plates are respectively provided with second fixing members, and the sound-absorbing assembly is fixed to the inner wall of the housing through the second fixing members.

[0011] Furthermore, the rear end of the casing has an opening for gas to enter, and the bottom has a ventilation duct. The casing is connected to the air outlet through the ventilation duct.

[0012] Furthermore, the impeller has a three-dimensional flow structure.

[0013] Furthermore, a head frame is provided at the bottom of the drive motor, and the drive motor is at least partially mounted on the head frame, which is fixedly connected to the bottom surface of the housing.

[0014] Furthermore, the shell has four feet at the four corners for support.

[0015] Furthermore, a junction box is provided on the left side wall of the housing, and the junction box has a wiring hole; the wiring harness of the drive motor can be pulled into the junction box through the wiring hole and connected to the drive motor.

[0016] This invention provides a simplified screw blower. By sequentially arranging a filter assembly, a silencer assembly, a drive motor, and a blower inside the housing, it achieves a simple structure, compact layout, and high functional integration. Simultaneously, by ensuring the airflow path covers the drive motor area, effective air cooling of the motor is achieved, eliminating the need for additional cooling devices, improving the system's energy efficiency ratio, and reducing maintenance costs. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a simplified screw blower provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a simplified screw blower provided by this utility model;

[0019] Figure 3 This is a cross-sectional view of the fan provided according to this utility model;

[0020] Figure 4 This is a structural schematic diagram of the filter assembly provided by this utility model;

[0021] Figure 5 This is a structural schematic diagram of the noise reduction assembly provided by this utility model;

[0022] Figure 6 This is a structural schematic diagram of the fan provided according to this utility model. Detailed Implementation

[0023] 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.

[0024] In addition, to clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The top, bottom, left, right, front, and back sides are shown.

[0025] like Figures 1 to 3 As shown, this application provides a simple screw blower, which includes a housing 1. Specifically, the housing 1 has a receiving cavity, an air inlet 11 on the front end face of the housing 1, and an air outlet 12 on the right end face.

[0026] More specifically, the cavity contains, from front to back, a filter assembly 2, a silencer assembly 3, a drive motor 4, and a fan 5. The left and right ends of the filter assembly 2 and the silencer assembly 3 are fixed to the inner walls of the housing 1, respectively. The drive motor 4 is installed at the bottom of the cavity. The fan 5 includes a housing 51 and an impeller 52 disposed within the housing 51. The housing 51 is fixedly connected to the drive motor 4, the impeller 52 is connected to the output shaft of the drive motor 4, and the fan 5 communicates with the air outlet 12.

[0027] With the above-described design, the blower boasts a simple structure and high component integration, integrating filtration, noise reduction, cooling, and air delivery functions into a single housing 1. This reduces independent assembly and piping connections, improving overall compactness and reliability. Simultaneously, by ensuring the airflow path covers the drive motor 4 area, effective air cooling of the motor is achieved, eliminating the need for additional cooling devices, improving system energy efficiency, and reducing maintenance costs. Furthermore, the fixed structure ensures the stability and reliability of the components during operation. The overall layout facilitates miniaturization, making it easy to transport and install, and suitable for space-constrained applications.

[0028] like Figure 4 As shown, the filter assembly 2 includes a first filter plate 21 and a second filter plate 22 arranged in a front-to-back direction. The top and bottom of the first filter plate 21 and the second filter plate 22 are connected by sheet metal parts. The sheet metal connection structure is stable, preventing the assembly from shifting or falling off due to airflow impact or vibration during operation. The first filter plate 21 and the second filter plate 22 are respectively provided with a plurality of filter holes 23. Filter cotton is provided between the first filter plate 21 and the second filter plate 22. The filter holes 23 are used for pre-filtering large particulate impurities, while the filter cotton further enhances the fine filtration capability, significantly reduces the risk of dust entering the equipment, and effectively extends the service life of core components such as the motor and the fan 5.

[0029] Specifically, the left and right ends of the first filter plate 21 and / or the second filter plate 22 are respectively provided with first fixing members 24. The filter assembly 2 is fixed to the inner wall of the housing 1 by the first fixing members 24 to ensure that the filter assembly 2 will not shift or fall off during long-term operation of the equipment. The first fixing member 24 can be a screw structure, a slot structure or other connection structure, depending on the actual assembly requirements.

[0030] like Figure 5 As shown, the noise reduction assembly 3 includes a first noise reduction plate 31 and a second noise reduction plate 32 arranged in a front-to-back direction. The top and bottom of the first noise reduction plate 31 and the second noise reduction plate 32 are connected by sheet metal parts. The first noise reduction plate 31 and the second noise reduction plate 32 are provided with ventilation holes 33 at corresponding positions. Sound-absorbing cotton is provided between the first noise reduction plate 31 and the second noise reduction plate 32, thereby reducing system operating noise and improving overall comfort.

[0031] Specifically, the left and right ends of the first silencing plate 31 and / or the second silencing plate 32 are respectively provided with second fixing members 34. The silencing assembly 3 is fixed to the inner wall of the housing 1 through the second fixing members 34 to ensure the stability of the structure of the silencing assembly 3. Among them, according to the actual assembly requirements, the second fixing member 34 can be a screw structure, a slot structure or other connection structure.

[0032] like Figure 6 As shown, the rear end of the housing 51 has an opening 511 for gas to enter, and the bottom has a ventilation duct 512. The housing 51 is connected to the air outlet 12 through the ventilation duct 512. The housing 51 has a simple structure, is easy to process and shape, and is suitable for the miniaturization and modular design requirements of blowers.

[0033] like Figure 3 As shown, the impeller 52 has a three-dimensional flow structure, which enables optimized guidance of airflow in three-dimensional space, effectively improves the angle matching of airflow entering and leaving the blade, reduces flow separation and energy loss, and enhances gas compression efficiency.

[0034] like Figure 2 As shown, a headstock 6 is provided at the bottom of the drive motor 4, and the drive motor 4 is at least partially mounted on the headstock 6, which is fixedly connected to the bottom surface of the housing 1. Through this arrangement, the drive motor 4 is stably supported within the blower housing 1, effectively avoiding positioning deviations or increased vibrations caused by direct mounting of the motor to the bottom surface of the housing 1. Simultaneously, the headstock 6, as a structural intermediate layer, helps to disperse the vibrations and loads generated during motor operation, improving system stability and noise control. Furthermore, the headstock 6 facilitates motor installation and disassembly, enhancing assembly convenience and subsequent maintenance efficiency.

[0035] like Figure 1As shown, the four corners of the bottom surface of the housing 1 are provided with feet 13 for support, which improves the installation stability and seismic performance of the blower.

[0036] A junction box 14 is provided on the left side wall of the housing 1, and the junction box 14 has a wiring hole 141. The wiring harness of the drive motor 4 can be pulled into the junction box 14 through the wiring hole 141 and connected to the drive motor 4. Through the above arrangement, the motor power supply line can be effectively managed and protected, preventing external pulling, oil contamination and mechanical damage to the cable, and improving the reliability of system operation.

[0037] 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 simple screw blower, characterized in that, include: The housing (1) has a cavity inside, and the front end face of the housing (1) has an air inlet (11) and the right end face has an air outlet (12). The cavity is provided with a filter assembly (2), a noise reduction assembly (3), a drive motor (4) and a fan (5) from front to back. The left and right ends of the filter assembly (2) and the noise reduction assembly (3) are respectively fixed to the inner wall of the housing (1). The drive motor (4) is installed at the bottom of the cavity. The fan (5) includes a housing (51) and an impeller (52) installed in the housing (51). The housing (51) is fixedly connected to the drive motor (4), the impeller (52) is connected to the output shaft of the drive motor (4), and the fan (5) is connected to the air outlet (12).

2. The simplified screw blower as described in claim 1, characterized in that, The filter assembly (2) includes a first filter plate (21) and a second filter plate (22) arranged in the front-back direction. The top and bottom of the first filter plate (21) and the second filter plate (22) are connected by sheet metal parts. The first filter plate (21) and the second filter plate (22) are respectively provided with a plurality of filter holes (23). Filter cotton is provided between the first filter plate (21) and the second filter plate (22).

3. The simplified screw blower as described in claim 2, characterized in that, The first filter plate (21) and / or the second filter plate (22) are provided with first fixing members (24) at their left and right ends respectively, and the filter assembly (2) is fixed to the inner wall of the housing (1) by the first fixing members (24).

4. The simplified screw blower as described in claim 1, characterized in that, The noise reduction assembly (3) includes a first noise reduction plate (31) and a second noise reduction plate (32) arranged in the front-back direction. The top and bottom of the first noise reduction plate (31) and the second noise reduction plate (32) are connected by sheet metal parts. The first noise reduction plate (31) and the second noise reduction plate (32) are provided with ventilation holes (33) at corresponding positions. Noise reduction cotton is provided between the first noise reduction plate (31) and the second noise reduction plate (32).

5. The simplified screw blower as described in claim 4, characterized in that, The first silencing plate (31) and / or the second silencing plate (32) are respectively provided with second fixing members (34) at their left and right ends, and the silencing assembly (3) is fixed to the inner wall of the housing (1) by the second fixing members (34).

6. The simplified screw blower as described in claim 1, characterized in that, The rear end of the housing (51) is provided with an opening (511) for gas to enter, and the bottom is provided with a ventilation pipe (512). The housing (51) is connected to the air outlet (12) through the ventilation pipe (512).

7. The simplified screw blower as described in claim 1, characterized in that, The impeller (52) has a three-dimensional flow structure.

8. The simplified screw blower as described in claim 1, characterized in that, The drive motor (4) has a head frame (6) at its bottom. The drive motor (4) is at least partially mounted on the head frame (6). The head frame (6) is fixedly connected to the bottom surface of the housing (1).

9. The simplified screw blower as described in claim 1, characterized in that, The shell (1) has four feet (13) for support at the four corners of its bottom surface.

10. The simplified screw blower as described in claim 1, characterized in that, A junction box (14) is provided on the left side wall of the housing (1), and a wiring hole (141) is provided on the junction box (14); the wiring harness of the drive motor (4) can be pulled into the junction box (14) through the wiring hole (141) and connected to the drive motor (4).

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