Dust collector with multiple noise reduction functions
By introducing multiple noise reduction structures into the vacuum cleaner, including a combination of cone tubes and silencers, the problem of poor noise reduction in existing vacuum cleaners has been solved, achieving a more efficient noise reduction effect and improving the user experience.
Patent Information
- Application Number
- CN202423322327.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The noise reduction structure on the air intake side of the existing vacuum cleaner motor is simple and the noise reduction effect is generally poor, resulting in loud noise during operation and affecting the user experience.
The system employs a multi-stage noise reduction structure, including a first noise reduction component inside the dust collection cup, a first sound-absorbing component inside the annular groove of the motor cover, and a second noise reduction component and a second sound-absorbing component at the air outlet. The airflow passes through multiple noise reduction paths composed of multiple conical tubes and sound-absorbing cotton, achieving multiple levels of noise reduction.
It achieves multiple noise reduction effects in the vacuum cleaner, with a compact and reasonable overall structure that does not take up extra space, significantly improving the user experience.
Smart Images
Figure CN223860766U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vacuum cleaner technology, and more particularly to a vacuum cleaner with multiple noise reduction features. Background Technology
[0002] Vacuum cleaners primarily utilize the suction power generated by the high-speed rotation of a motor to draw in dust or light dust particles from the air using negative pressure. The dust is then filtered through a microporous filter structure to achieve the purpose of dust collection. However, the high-speed operation of the motor generates considerable noise. Current vacuum cleaners typically employ noise-reducing structures or sponges on the motor's air intake side to mitigate this noise, but these methods are simplistic and generally ineffective, leaving the vacuum cleaner still quite noisy and negatively impacting the user experience. Utility Model Content
[0003] The purpose of this utility model is to solve the above-mentioned technical problems and provide a vacuum cleaner with multiple noise reduction functions. The vacuum cleaner of this application has multiple noise reduction structures on both the inlet and outlet sides, which are reasonable in structure and have good noise reduction effect.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A vacuum cleaner with multiple noise reduction features includes a motor cover for mounting a motor and a dust collection cup, the dust collection cup being connected to the motor cover; the dust collection cup is connected to a suction base, the suction base having an air inlet duct; a filter is installed inside the dust collection cup, the air inlet duct communicating with the filter; a first noise reduction component having several conical tubes is installed inside the filter, the air inlet and outlet sides of the first noise reduction component being located on the side closest to the motor cover, the airflow passing through the air inlet duct and filtering by the filter, and then passing through the first noise reduction component... After flowing into the inner cavity of each conical tube, the airflow passes through the middle of the conical tube and enters the inner cavity of the motor cover. An annular groove communicating with the inner cavity of the motor cover is provided around the outer periphery of the motor cover. A first noise-reducing component is installed in the annular groove. A second noise-reducing component with multiple conical tube holes is connected to the open side of the annular groove. An air outlet cover is connected to the outer side of the second noise-reducing component. The air outlet cover is narrowed on the air outlet side to form an air outlet. A second noise-reducing component is provided around the air outlet. The airflow output by the motor flows through the annular groove, then through the first noise-reducing component, and flows out through the air outlet.
[0006] In this application, the dust collection cup is connected to the dust collection base. Dust is drawn into the filter inside the dust collection cup through the air inlet duct for filtration. The first noise reduction component inside the dust collection cup has multiple conical tubes, with the air inlet and outlet sides located on the same side. The airflow enters the inner cavity of the filter, passes through the bottom of the first noise reduction component near the motor cover, and enters each conical tube. After achieving noise reduction in the inner cavity of the conical tube, it quickly flows out from that side. While achieving noise reduction, the air duct is relatively short, and the airflow does not need to flow out from the small-diameter end of the conical tube, which does not easily affect the air intake efficiency, resulting in a reasonable structure. The airflow output by the motor achieves a first noise reduction effect under the silencing effect of the first silencer when passing through the annular groove. The second noise reduction component connected to the annular groove has multiple conical holes. The airflow is further noise-reduced after passing through the multiple conical holes and is then output through the constricted air outlet, achieving a second noise reduction effect after passing through the second silencer. The vacuum cleaner of this application has multiple noise reduction structures, a compact and reasonable overall structure, does not require much installation space, and has high noise reduction efficiency.
[0007] In one embodiment, a connector is also included, one end of which is sealed to the dust collection cup and the other end of which is sealed to the air inlet side of the motor cover.
[0008] In one embodiment, the connector is provided with a plurality of air inlet pipes corresponding to each conical tube of the first noise reduction component; each conical tube of the first noise reduction component is spirally extended with a guide pipe, and after the airflow enters the inner cavity of the filter, it enters the inner cavity of the conical tube through the guide pipe, and then is input to the inner cavity of the motor cover through the air inlet pipe.
[0009] In one embodiment, each cone of the first noise reduction component has a guide section with a vertical sidewall at its bottom position, and the guide section is formed by spiral extension of the guide section; the height of the air inlet pipe is slightly higher than the height of the guide section.
[0010] In one embodiment, the first noise reduction component is connected to an extension tube inside the filter. The extension tube is tapered, and its end passes through the filter and abuts against the side wall of the dust collection cup away from the motor.
[0011] In one embodiment, a fixing plate is sleeved around the outer periphery of the small-diameter end of the tapered tube of the first noise reduction component, and the fixing plate is connected to the large-diameter end of the extension tube; a fixing hole is opened at the end of the filter, and the small-diameter end of the extension tube passes through the fixing hole and abuts against the dust collection cup.
[0012] In one embodiment, the motor cover includes an air inlet cover, the connector is snapped into the air inlet cover, and the connector is equipped with a sealing ring to form a sealed connection with the air inlet cover; a filter element is installed in the middle of the connector.
[0013] In one embodiment, the device further includes a mounting housing, wherein the motor cover, the second noise reduction component, and the air outlet cover are all installed in the inner cavity of the mounting housing; one end of the vacuum cleaner seat is a handle portion, which is connected to the mounting housing.
[0014] In one embodiment, an air outlet channel is provided on one side of the mounting housing, the air outlet cover is installed inside the mounting housing, and the air outlet is connected to the air outlet channel; the second silencer is located in the air outlet cavity formed between the air outlet and the air outlet channel.
[0015] In one embodiment, one side of the air outlet cover extends forward to form a horn-shaped air outlet, and the second silencer is fitted onto the air outlet. Attached Figure Description
[0016] Figure 1 This is a structural cross-sectional view of the vacuum cleaner provided by this utility model;
[0017] Figure 2 An exploded view of the structure of the vacuum cleaner provided by this utility model;
[0018] Figure 3 This is a cross-sectional view of the dust collection cup provided by this utility model;
[0019] Figure 4 This is an exploded view of the structure of the dust collection cup provided by this utility model;
[0020] Figure 5 A cross-sectional view of the motor noise reduction structure provided by this utility model;
[0021] Figure 6 An exploded view of the motor noise reduction structure provided by this utility model;
[0022] Figure 7 An exploded view of the mounting shell provided by this utility model;
[0023] Figure 8 A cross-sectional view of the mounting shell provided by this utility model. Detailed Implementation
[0024] This application provides a vacuum cleaner with multiple noise reduction features to address the technical problem that existing vacuum cleaners with noise reduction structures or sponges on the motor air intake side have a single structural form, generally poor noise reduction effect, and still produce significant noise during operation, affecting the user experience.
[0025] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0026] Please see Figures 1 to 8 This application provides a vacuum cleaner with multiple noise reduction features, including a motor cover 20 for mounting a motor 10 and a dust collection cup 30, the dust collection cup 30 being connected to the motor cover 20; the dust collection cup 30 is connected to a suction base 40, the suction base 40 having an air inlet duct 41; the inner cavity of the dust collection cup 30 is provided with a filter 50, the air inlet duct 41 being connected to the filter 50; the inner cavity of the filter 50 is equipped with a first noise reduction component 60 having a plurality of cone tubes 61, the air inlet side and the air outlet side of the first noise reduction component 60 being located on the side closest to the motor cover 20, the airflow passing through the air inlet duct 41 and filtering through the filter 50, and then passing through the first... The noise reduction component 60 flows into the inner cavity of each cone tube 61 and then enters the inner cavity of the motor cover 20 through the middle of the cone tube 61. The outer periphery of the motor cover 20 is provided with an annular groove 21 that connects to the inner cavity of the motor cover 20. The annular groove 21 is equipped with a first noise reduction component 22. The opening side of the annular groove 21 is connected to a second noise reduction component 70 with multiple cone holes. The outer side of the second noise reduction component 70 is connected to an air outlet cover 80. The air outlet cover 80 is narrowed on the air outlet side to form an air outlet 81. The air outlet 81 is surrounded by a second noise reduction component 82. The airflow output by the motor 10 flows through the annular groove 21 and then through the first noise reduction component 60, and flows out through the air outlet 81.
[0027] Specifically, a motor 10 is installed inside the motor housing 20, and the air inlet side of the motor housing 20 is connected to the dust collection cup 30; a dust suction seat 40 for sucking up dust is fixed at the bottom of the dust collection cup 30, and the dust suction seat 40 forms an air inlet channel 41 parallel to the dust collection cup 30 in its inner cavity; the air inlet end of the air inlet channel 41 is used for dust suction, and the air outlet end communicates with the holes opened on the side wall of the dust collection cup 30; the filter 50 located in the inner cavity of the dust collection cup 30 has a cyclone wall 51 on its outer wall to smoothly guide the airflow of the air inlet channel 41 to the filter wall 52 on the upper side of the filter 50, and the airflow mixed with dust is filtered by the filter wall 52 before entering the filter. The filter 50 has a first noise reduction component 60 installed inside its cavity. This first noise reduction component 60 consists of several tapered tubes 61, with the larger diameter end facing the air inlet side of the inlet shroud. The bottom side of the first noise reduction component 60 closest to the motor cover 20 is the air inlet side. Airflow enters the cavity of each tapered tube 61 through this area. Since the outlet and inlet sides of the first noise reduction component 60 are on the same side, the airflow is rectified within the cavity of the tapered tube 61 and then enters the cavity of the motor cover 20 from the middle of the same side of the tapered tube 61. Noise reduction is achieved as the airflow passes through the tapered tubes 61 of the first noise reduction component 60. Furthermore, due to the short flow channel, the output position has a relatively large [sound quality / advantage]. The diameter of the nozzle ensures that the air intake efficiency of the motor 10 is not easily affected during the noise reduction process. The inner cavity of the motor cover 20 forms a mounting groove for installing the motor 10, with the opening side being the air intake side. The outer periphery of the motor cover 20 extends an annular wall to the side opposite to the opening of the mounting groove to form an annular groove 21. A first noise-reducing component 22 with matching size is placed in the annular groove 21 so that the output airflow is silenced and noise-reduced when passing through the annular groove 21. The main body of the second noise-reducing component 70 is composed of multiple conical holes, one side of which connects with the opening of the annular groove 21, so that all the airflow after noise reduction by the first noise-reducing component 22 flows out through the conical holes for secondary noise reduction. The air outlet cover... The first noise-reducing component 22 and the second noise-reducing component 70 are connected, so that the airflow is output from the contracted air outlet 81. During the output process, the change in the diameter of the air outlet 81 has a certain noise reduction effect. After the airflow is output, it flows through the second noise-reducing component 82 for further noise reduction. Thus, there are multiple noise reduction effects in the airflow output duct. In this embodiment, the first noise-reducing component 22 and the second noise-reducing component 82 are made of sound-absorbing cotton. The structure is simple and the noise reduction effect is good. The vacuum cleaner has front-end noise reduction and rear-end noise reduction, and the output airflow of the motor 10 has multiple noise reduction effects, so that the overall noise reduction effect is obvious and the user experience is improved.
[0028] Furthermore, it also includes a connector 31, one end of which is sealed to the dust collection cup 30, and the other end is sealed to the air inlet side of the motor cover 20. The connector 31 is provided with a plurality of air inlet pipes 311 corresponding to each conical tube 61 of the first noise reduction component 60; each conical tube 61 of the first noise reduction component 60 is spirally extended with a guide pipe 611. After the airflow enters the inner cavity of the filter 50, it enters the inner cavity of the conical tube 61 through the guide pipe 611, and then enters the inner cavity of the motor cover 20 through the air inlet pipe 311. Connector 31 connects the dust collection cup 30 to the air inlet hood, forming a sealed connection with both ends to ensure smooth airflow and prevent additional noise due to air leakage. The airflow filtered and reduced by the dust collection cup 30 is input into the inner cavity of the motor cover 20 through the air inlet pipe 311 provided by connector 31. The position of the air inlet pipe 311 corresponds to each cone pipe 61 of the first noise reduction component 60. The main body of the first noise reduction component 60 consists of multiple cone pipes 61 arranged in a circumferential shape, and the bottom of each cone pipe 61 extends spirally to form an air guide pipe 611. The airflow enters the inner cavity of each cone hole through the air guide pipe 611; the air inlet pipe 311 of the connector 31 extends into each cone pipe 61, and the diameter of the air inlet pipe 311 is smaller than the diameter of the cone pipe 61, and the gap between the two forms the air inlet channel; by connecting the air inlet pipes 311 that extend into the cone pipe 61, the airflow flows into the inner cavity of the cone pipe 61 through the air guide pipe 611, and after being rectified and noise-reduced in the inner cavity of the cone pipe 61, it is quickly input to the motor side through the air inlet pipe 311; the airflow channel is short, which has both noise reduction and high air intake efficiency.
[0029] Furthermore, each cone tube 61 of the first noise reduction component 60 has a guide section 612 with a vertical sidewall near its bottom position. The guide section 611 is formed by the spiral extension of the guide section 612. The height of the air inlet pipe 311 is slightly higher than the height of the guide section 612. The sidewall of the guide section 612 is vertical and spirals outward to form the guide section 611. Each air inlet pipe 311 extends into the inner cavity of each cone tube 61 and is slightly higher than the height of the guide section 612, so that the airflow can completely enter the conical inner wall of the cone tube 61 for noise reduction, ensuring the noise reduction effect.
[0030] Furthermore, the first noise reduction component 60 is connected to an extension tube 62 within the inner cavity of the filter 50. The extension tube 62 is tapered, and its end passes through the filter 50 and abuts against the side wall of the dust collection cup 30 away from the motor 10. A fixing plate 63 is fitted around the outer periphery of the smaller diameter end of the tapered tube 61 of the first noise reduction component 60, and the fixing plate 63 is connected to the larger diameter end of the extension tube 62. A fixing hole 53 is provided at the end of the filter 50, and the smaller diameter end of the extension tube 62 passes through the fixing hole 53 and abuts against the dust collection cup 30. The tapered extension tube 62 is connected to the first noise reduction component 60 via a fixing plate 63, and its inner cavity is connected to the inner cavity of each tapered tube 61. The top of the filter 50 is provided with a fixing hole 53 that fits against the outer wall of the extension tube 62. After the extension tube 62 passes through the fixing hole 53, its end abuts against the end of the dust collection cup 30. Through the tapered extension tube 62, some airflow is output from the small-diameter end of the tapered tube 61 and can achieve noise reduction in the extension tube 62, further increasing the noise reduction effect. In addition, since the end of the extension tube 62 abuts against the end of the dust collection cup 30, the structural strength of the dust collection cup 30 is improved.
[0031] Furthermore, the motor cover 20 includes an air inlet cover 23, and the connector 31 is snapped into the air inlet cover 23. The connector 31 is fitted with a sealing ring 24 to form a sealed connection with the air inlet cover 23. A filter element 25 is installed in the middle of the connector 31. The air inlet cover 23 covers the motor cover 20 and forms a sealed connection with the connector 31, allowing the intake airflow to fully enter when the motor 10 is running. The filter element 25 in the middle of the connector 31 further filters the airflow, preventing it from affecting the operation of the motor 10.
[0032] See Figures 7 to 8 The system also includes a mounting shell 90, in which the motor cover 20, the second noise reduction component 70, and the air outlet cover 80 are all installed within the inner cavity of the mounting shell 90. One end of the dust collection base 40 is a handle portion 42, which is connected to the mounting shell 90. The motor cover 20, the noise reduction sleeve, and the air outlet cover 80 are connected in sequence, and the mounting shell 90 is fitted onto the outside of the three components to further limit the connection stability between the motor cover 20 and the noise reduction sleeve and the air outlet cover 80. Furthermore, the motor cover 20 has shock-absorbing pads 26 at both the inlet and outlet ends of the motor 10, thereby effectively reducing the vibration of the motor 10. This makes the components installed in the inner cavity of the mounting shell 90 more stable and less prone to displacement and gaps due to the vibration of the motor 10, thus affecting the noise reduction effect. The handle portion 42 of the dust collection base 40 is fitted and fixed to the mounting shell 90, making the connection between the dust collection cup 30 and the mounting shell 90 more stable.
[0033] Furthermore, an air outlet channel 91 is provided on one side of the mounting housing 90, and the air outlet cover 80 is installed inside the mounting housing 90, with the air outlet 81 connected to the air outlet channel 91; the second silencer 82 is located in the air outlet cavity 83 formed between the air outlet 81 and the air outlet channel 91. The air outlet channel 91 provided on one side of the mounting housing 90 is connected to the air outlet 81, and the second silencer 82 is provided between the air outlet channel 91 and the air outlet 81, so that the airflow output from the air outlet 81 can be output to the outside through the air outlet channel 91 after passing through the second silencer 82. A filter 25 is also provided inside the air outlet channel 91 to prevent dust from flowing out without complete filtration. In this embodiment, the air outlet cover 80 is limited by the mounting housing 90, and the second silencer 82 is provided in the air outlet cavity 83 between the air outlet covers 80 to achieve the noise reduction effect. The structure is simple and reasonable, and the noise reduction effect is good.
[0034] Furthermore, one side of the air outlet cover 80 extends forward to form a trumpet-shaped air outlet 81, and the second silencer 82 is sleeved on the air outlet 81. One side wall of the air outlet cover 80 is connected to the multi-cone sleeve, and the other side extends towards the center and tapers to form a trumpet-shaped air outlet 81, and the taper part is arc-shaped, so that the airflow output achieves a noise reduction effect.
[0035] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A vacuum cleaner with multiple noise reduction features, characterized in that, The device includes a motor housing for mounting the motor and a dust collection cup, the dust collection cup being connected to the motor housing; the dust collection cup is connected to a dust collection base, the dust collection base having an air inlet duct; the inner cavity of the dust collection cup has a filter, the air inlet duct being connected to the filter; the inner cavity of the filter is equipped with a first noise reduction component having several conical tubes, the air inlet and outlet sides of the first noise reduction component being located on the side closest to the motor housing, the airflow flows through the air inlet duct and is filtered by the filter, then flows into the inner cavity of each conical tube after passing through the first noise reduction component, and then enters the inner cavity of the motor housing through the middle of the conical tube; the outer periphery of the motor housing is provided with an annular groove communicating with the inner cavity of the motor housing, the annular groove is equipped with a first silencing component; the open side of the annular groove is connected to a second noise reduction component having multiple conical holes, the outer side of the second noise reduction component is connected to an air outlet cover, the air outlet cover narrowing to form an air outlet; the air outlet is surrounded by a second silencing component, the airflow output by the motor flows through the annular groove and then through the second noise reduction component, and flows out through the air outlet.
2. The vacuum cleaner with multiple noise reduction features according to claim 1, characterized in that, It also includes a connector, one end of which is sealed to the dust collection cup and the other end of which is sealed to the air inlet side of the motor cover.
3. The vacuum cleaner with multiple noise reduction functions according to claim 2, characterized in that, The connector is provided with a plurality of air inlet pipes corresponding to each cone tube of the first noise reduction component; each cone tube of the first noise reduction component is spirally extended with an air guide pipe. After the airflow enters the inner cavity of the filter, it enters the inner cavity of the cone tube through the air guide pipe, and then enters the inner cavity of the motor cover through the air inlet pipe.
4. The vacuum cleaner with multiple noise reduction features according to claim 3, characterized in that, Each cone of the first noise reduction component has a guide section with a vertical sidewall near its bottom, and the guide section is formed by spiral extension of the guide section; the height of the air inlet pipe is slightly higher than the height of the guide section.
5. The vacuum cleaner with multiple noise reduction features according to claim 3, characterized in that, The first noise reduction component is connected to an extension tube inside the filter. The extension tube is tapered, and its end passes through the filter and abuts against the side wall of the dust collection cup away from the motor.
6. The vacuum cleaner with multiple noise reduction features according to claim 5, characterized in that, A fixing plate is fitted around the outer periphery of the small-diameter end of the tapered tube of the first noise reduction component, and the fixing plate is connected to the large-diameter end of the extension tube; a fixing hole is opened at the end of the filter, and the small-diameter end of the extension tube passes through the fixing hole and abuts against the dust collection cup.
7. The vacuum cleaner with multiple noise reduction features according to claim 2, characterized in that, The motor cover includes an air inlet cover, the connector is snapped into the air inlet cover, and the connector is equipped with a sealing ring to form a sealed connection with the air inlet cover; a filter element is installed in the middle of the connector.
8. The vacuum cleaner with multiple noise reduction functions according to claim 1, characterized in that, It also includes a mounting shell, in which the motor cover, the second noise reduction component, and the air outlet cover are all installed in the inner cavity of the mounting shell; one end of the vacuum cleaner seat is a handle portion, which is connected to the mounting shell.
9. The vacuum cleaner with multiple noise reduction functions according to claim 8, characterized in that, An air outlet channel is provided on one side of the mounting housing, the air outlet cover is installed inside the mounting housing, and the air outlet is connected to the air outlet channel; the second silencer is located in the air outlet cavity formed between the air outlet and the air outlet channel.
10. The vacuum cleaner with multiple noise reduction functions according to claim 1, characterized in that, One side of the air outlet cover extends forward to form a horn-shaped air outlet, and the second silencer is fitted onto the air outlet.