Low-noise blower box structure based on intake passage optimization
By optimizing the air intake channel design of the blower casing, the problems of uneven airflow distribution and high noise were solved, achieving low noise and efficient heat dissipation, and improving the operational stability and maintenance convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANJIAN INTELLIGENT EQUIP MFG (JIANGSU) CO LTD
- Filing Date
- 2025-03-11
- Publication Date
- 2026-05-29
AI Technical Summary
The traditional blower casing lacks effective guidance and optimization in its air intake channel design, resulting in uneven airflow distribution, high noise, and poor heat dissipation, which affects equipment lifespan and production continuity.
A low-noise blower chassis structure based on optimized air intake channels was designed, including vertically arranged partitions and silencers, forming multiple air intake channels and chambers. By buffering and rectifying airflow, noise is reduced and heat dissipation efficiency is improved.
It significantly reduces aerodynamic noise, improves heat dissipation, enhances equipment operational stability and ease of maintenance, and extends equipment lifespan.
Smart Images
Figure CN224301110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blower housing technology, and in particular to a low-noise blower housing structure based on optimized air intake channel. Background Technology
[0002] In numerous industrial and civil applications, blowers play an indispensable role as crucial gas delivery equipment. However, the traditional air intake design of blowers is relatively rudimentary, often lacking effective guidance and optimization of airflow. Outside air typically enters the blower directly without buffering or rectification, leading to uneven airflow velocity and pressure distribution, easily causing strong aerodynamic noise. Furthermore, the airflow generates additional turbulence as it impacts components within the blower, further exacerbating noise pollution. Moreover, the unstable airflow cannot efficiently dissipate heat from critical components such as the electrical control system, frequency converter, and main unit, causing these components to operate at high temperatures for extended periods. This significantly shortens the equipment's lifespan, and frequent overheating failures severely impact production continuity. Utility Model Content
[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a low-noise blower chassis structure based on optimized air intake channel, so as to solve the problems of uneven airflow distribution and high noise in the traditional chassis in the prior art.
[0004] To achieve the above and other related objectives, this utility model provides the following technical solution:
[0005] The low-noise blower chassis structure based on optimized air intake channels includes: a chassis, a first partition and a second partition vertically disposed on the chassis bottom plate, a main unit mounting plate connected between the first partition and the second partition, and a silencer box located above the main unit mounting plate; an electrical control compartment is formed between the first partition and the left side panel of the chassis; a first air intake channel communicating with the electrical control compartment is formed between the silencer box and the top plate of the chassis; a second air intake channel communicating with the first air intake channel is formed between the second partition and the right side panel of the chassis; a frequency converter compartment for placing a frequency converter and communicating with the second air intake channel is formed between the main unit mounting plate and the chassis bottom plate; and a main unit compartment communicating with the frequency converter compartment is formed between the main unit mounting plate and the silencer box.
[0006] To achieve the above technical solution, outside air first enters the electrical control chamber. The electrical components within the chamber generate heat during operation, and the airflow dissipates this heat, preventing performance degradation or even damage due to overheating. The airflow exiting the electrical control chamber then enters the first intake channel, where its velocity and pressure distribution are further optimized, resulting in smoother flow and reducing noise caused by airflow instability. Subsequently, the airflow flows into the second intake channel and then into the frequency converter chamber, carrying away the heat generated by the frequency converter. Finally, the airflow enters the main unit chamber, providing the necessary airflow for the main unit's operation. The entire intake channel design, from the electrical control chamber to the subsequent channels and chambers, utilizes spatial layout and structural design to buffer and rectify the airflow. The design of the first and second intake channels allows for a smooth transition of airflow, reducing aerodynamic noise caused by airflow instability; the longer channels increase the airflow propagation path, causing sound waves to gradually attenuate during propagation, thus reducing noise.
[0007] In one embodiment of the present invention, the left side panel of the chassis is provided with a side door, and a filter structure is embedded in the side door.
[0008] To achieve the above technical solution, the side-opening door design on the left side panel of the chassis allows the side door to be opened when maintenance or cleaning of the chassis interior is required. The filter structure is embedded in the side-opening door, so when outside air enters, the air first comes into contact with the filter structure, allowing the air to be effectively filtered and smoothly pass into the chassis interior, and then enter the subsequent electrical control compartment and other areas to participate in the heat dissipation and air intake process.
[0009] In one embodiment of the present invention, the filter structure includes a mounting frame, a support plate disposed on the rear side of the mounting frame, and an air intake plate covering the mounting frame and having a plurality of air intake holes.
[0010] To achieve the above technical solution, air passes through the air intake plate and enters the space between the mounting frame and the support plate, where filter cotton or other types of filter materials can be placed. These filter materials can effectively remove residual fine particles, dust, and other impurities from the air, providing a finer filtration effect. After a period of use, the filter cotton's filtration capacity will decrease due to the adsorption of a large amount of impurities. Since the filter cotton is placed between the mounting frame and the support plate, the operator can easily remove the old filter cotton, replace it with new filter cotton, and then re-secure the mounting frame and support plate to restore the filter structure to its normal filtration function.
[0011] In one embodiment of the present invention, an air switch cabinet is provided on the rear inner wall of the electrical control compartment, and an air switch cabinet door hinged to the chassis is covered on the air switch cabinet.
[0012] To achieve the above technical solution, the circuit breaker cabinet is installed on the inner wall of the rear side of the electrical control compartment, which allows staff to easily open and close it when they need to operate the air switch or perform maintenance on the circuit breaker cabinet.
[0013] In one embodiment of the present invention, the electrical control compartment is provided with an electrical control cabinet, and the front wall of the electrical control compartment is hinged with an electrical control door, on which a display screen is embedded.
[0014] To achieve the above technical solution, the electrical control cabinet is installed inside the electrical control compartment for centralized management and control of various electrical components and system functions of the blower. The front wall of the electrical control compartment is hinged with an electrical control door, making the cabinet easily accessible for inspection, maintenance, or replacement of internal components. A display screen embedded in the electrical control door displays real-time operating status information of the blower, including but not limited to parameters such as speed, temperature, and pressure, greatly improving operational convenience and efficiency.
[0015] In one embodiment of the present invention, the main unit compartment is provided with an exhaust pipe that passes through the silencing box and extends out of the top plate of the chassis.
[0016] To achieve the above technical solution, the exhaust duct design allows hot air to be quickly and effectively discharged from the main unit compartment, avoiding heat accumulation inside the chassis, ensuring that key components can operate within the optimal temperature range, and extending the equipment's lifespan.
[0017] In one embodiment of this utility model, the top plate of the chassis is provided with a plurality of lifting lugs.
[0018] The lifting lug design enables the blower casing to be easily moved and installed using cranes, forklifts, or other lifting equipment. This is particularly suitable for large or heavy equipment, reducing the need for manual handling and lowering operational difficulty and risk.
[0019] As described above, the low-noise blower chassis structure based on optimized air intake channel of this utility model has the following beneficial effects:
[0020] 1. Superior noise reduction performance: Through the special shape and layout of the first and second air intake channels, and the ingenious configuration of the silencer box, the airflow is buffered and rectified at the source, significantly reducing aerodynamic noise caused by unstable airflow. At the same time, the longer air intake channel extends the propagation path of sound waves, causing the sound wave energy to gradually attenuate, effectively reducing noise interference.
[0021] 2. Highly efficient heat dissipation: The optimized air intake channel ensures that cool air can flow through the electronic control compartment, inverter compartment and main unit compartment in an orderly and efficient manner, providing precise heat dissipation support for each key heat-generating component.
[0022] 3. Convenient Maintenance: The side-opening door and embedded filter structure on the left side panel of the chassis greatly facilitate daily maintenance. When the filter cotton needs to be replaced, the operator only needs to easily open the air intake plate, conveniently remove the old filter cotton between the mounting frame and the support plate, and replace it with a new one. The whole process does not require complicated tools or professional skills, greatly shortening maintenance time and reducing maintenance costs.
[0023] 4. Intuitive operation monitoring: The display screen embedded in the electric control door presents the blower's various operating status information in real time, allowing operators to directly adjust the operating parameters from outside the electric control door. This greatly improves the convenience and timeliness of operation, optimizes the equipment's operating experience, and ensures that the blower can quickly respond to various changes in operating conditions. Attached Figure Description
[0024] Figure 1 The diagram shown is a structural schematic of this utility model.
[0025] Figure 2 This is another structural schematic diagram of the present invention.
[0026] Figure 3 The diagram shown is a schematic representation of the internal structure of this utility model.
[0027] Figure 4 This is a schematic diagram of another internal structure of the present invention.
[0028] Figure 5 The diagram shown is a structural schematic of the filter structure.
[0029] Component designation explanation
[0030] 1. Chassis ；2、 First partition ；3、 Second partition ；4、 Main unit installation board ；5、 Silencer ；6、 Electrically controlled warehouse ；7、 First air intake passage ；8、 Second air intake passage ；9、 Variable frequency drive compartment ；10、 Mainframe ；11、 Side door ；12、 Filter structure ； 121. Installation frame ；122、 support plate ；123、 air intake ；13、 Air switch cabinet ；14、 Open cabinet door ；15、 Electrical control cabinet ；16、 Electric door ；17、 Display screen ；18、 exhaust pipe ；19、 Hanging lugs. Detailed Implementation
[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features described herein can be combined with each other.
[0032] Please see Figures 1 to 5 This utility model provides a low-noise blower chassis structure based on optimized air intake channels, including a chassis 1, a first partition 2 and a second partition 3 vertically arranged on the bottom plate of the chassis 1, a main unit mounting plate 4 connected between the first partition 2 and the second partition 3, and a silencer box 5 located above the main unit mounting plate 4; an electrical control compartment 6 is formed between the first partition 2 and the left side plate of the chassis 1; a first air intake channel 7 is formed between the silencer box 5 and the top plate of the chassis 1, communicating with the electrical control compartment 6; a second air intake channel 8 is formed between the second partition 3 and the right side plate of the chassis 1, communicating with the first air intake channel 7; a frequency converter compartment 9 is formed between the main unit mounting plate 4 and the bottom plate of the chassis 1 for placing a frequency converter and communicating with the second air intake channel 8; and a main unit compartment 10 is formed between the main unit mounting plate 4 and the silencer box 5, communicating with the frequency converter compartment 9.
[0033] Outside air first enters the electrical control chamber 6. The electrical components within chamber 6 generate heat during operation, and the airflow dissipates this heat, preventing performance degradation or even damage due to overheating. The airflow exiting chamber 6 then enters the first intake channel 7, where its velocity and pressure distribution are further optimized, resulting in smoother flow and reducing noise caused by airflow instability. Subsequently, the airflow flows into the second intake channel 8 and then into the frequency converter chamber 9, carrying away the heat generated by the frequency converter. Finally, the airflow enters the main unit chamber 10, providing the necessary airflow for the main unit's operation. The entire intake channel design, starting from chamber 6 and extending to subsequent channels and chambers, utilizes spatial layout and structural design to buffer and rectify the airflow. The design of the first and second intake channels 7 and 8 allows for a smooth transition of airflow, reducing aerodynamic noise caused by airflow instability; the longer channels increase the airflow propagation path, causing sound waves to gradually attenuate during propagation, thus reducing noise.
[0034] The left side panel of the chassis 1 is provided with a side-opening door 11, and a filter structure 12 is embedded in the side-opening door 11. The side-opening door 11 on the left side panel of the chassis 1 is designed so that the side-opening door 11 can be opened when it is necessary to maintain or clean the inside of the chassis 1. The filter structure 12 is embedded in the side-opening door 11. When outside air enters, the air first comes into contact with the filter structure 12, so that the air can be effectively filtered and smoothly enter the inside of the chassis 1, and enter the subsequent electrical control compartment 6 and other areas to participate in the heat dissipation and air intake process.
[0035] The filter structure 12 includes a mounting frame 121, a support plate 122 disposed behind the mounting frame 121, and an air intake plate 123 covering the mounting frame 121 and having several air intake holes. Air passes through the air intake plate 123 and enters the space between the mounting frame 121 and the support plate 122, where filter cotton or other types of filter materials can be placed. These filter materials can effectively remove residual fine particles, dust, and other impurities from the air, providing a finer filtration effect. After a period of use, the filter cotton's filtration capacity will decrease due to the adsorption of a large amount of impurities. Since the filter cotton is placed between the mounting frame 121 and the support plate 122, the operator can easily remove the old filter cotton, replace it with new filter cotton, and then re-secure the mounting frame 121 and the support plate 122 to restore the filter structure 12 to its normal filtration function.
[0036] An air switch cabinet 13 is provided on the rear inner wall of the electrical control compartment 6, and the air switch cabinet 13 is covered with a door that is hinged to the chassis 1. The air switch cabinet 13 is located on the rear inner wall of the electrical control compartment 6 so that the staff can easily open and close it when they need to operate the air switch or perform maintenance on the air switch cabinet 13.
[0037] The electrical control compartment 6 houses an electrical control cabinet 15, and an electrical control door 16 is hinged to the front wall of the compartment 6. A display screen 17 is embedded in the electrical control door 16. The electrical control cabinet 15, installed within the compartment 6, is used for centralized management and control of various electrical components and system functions of the blower. The hinged electrical control door 16 on the front wall of the compartment 6 makes the cabinet easily accessible for inspection, maintenance, or replacement of internal components. The display screen 17 embedded in the electrical control door 16 displays real-time operating status information of the blower, including but not limited to parameters such as speed, temperature, and pressure, greatly improving operational convenience and efficiency.
[0038] The main unit compartment 10 is equipped with an exhaust duct 18 that passes through the silencer box 5 and extends out of the top plate of the chassis 1. The design of the exhaust duct 18 allows hot air to be quickly and effectively discharged from the main unit compartment 10, avoiding the accumulation of heat in the chassis 1, ensuring that key components can operate within the optimal temperature range, and extending the equipment life.
[0039] The top plate of the casing 1 is equipped with several lifting lugs 19. The design of the lifting lugs 19 allows the blower casing 1 to be easily moved and installed using cranes, forklifts, or other lifting equipment. This is particularly suitable for large or heavy equipment, reducing the need for manual handling and lowering the difficulty and risk of operation.
[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A low-noise blower chassis structure based on optimized air intake channel, characterized in that, include: The chassis, a first partition and a second partition vertically mounted on the chassis bottom plate, a host mounting plate connected between the first partition and the second partition, and a silencer box located above the host mounting plate; An electrical control compartment is formed between the first partition and the left side panel of the chassis; A first air intake channel connecting the electrical control compartment is formed between the silencing box and the top plate of the chassis. A second air intake channel is formed between the second partition and the right side panel of the chassis, which connects to the first air intake channel; A frequency converter compartment is formed between the main unit mounting plate and the chassis bottom plate for placing the frequency converter and connecting to the second air intake channel; The host mounting plate and the silencer box form a host compartment that connects to the frequency converter compartment.
2. The low-noise blower chassis structure based on optimized air intake channel as described in claim 1, characterized in that: The left side panel of the chassis is provided with a side door, and a filter structure is embedded in the side door.
3. The low-noise blower chassis structure based on optimized air intake channel according to claim 2, characterized in that: The filter structure includes a mounting frame, a support plate disposed on the rear side of the mounting frame, and an air intake plate covering the mounting frame and having a plurality of air intake holes.
4. The low-noise blower chassis structure based on optimized air intake channel as described in claim 1, characterized in that: The electrical control compartment is equipped with a circuit breaker cabinet on the rear inner wall, and the circuit breaker cabinet is covered with a circuit breaker cabinet door that is hinged to the chassis.
5. The low-noise blower chassis structure based on optimized air intake channel according to claim 1, characterized in that: The electrical control compartment is equipped with an electrical control cabinet, and an electrical control door is hinged to the front wall of the electrical control compartment. A display screen is embedded in the electrical control door.
6. The low-noise blower chassis structure based on optimized air intake channel according to claim 1, characterized in that: The main unit compartment is equipped with an exhaust pipe that passes through the silencing box and extends out of the top plate of the chassis.
7. The low-noise blower chassis structure based on optimized air intake channel according to claim 1, characterized in that: The top plate of the chassis is equipped with several lifting lugs.