Dust collector with noise reduction air duct

Abstract

The utility model discloses a dust collector with a noise reduction air duct. The first shell and the second shell are connected in a clamped mode, the motor cavity is formed in one end of an inner cavity of the second shell and provided with a motor, the exhaust window is formed in the other end of the inner cavity of the second shell, the inner sealing plate is arranged outside the exhaust window in a surrounding mode, the outer sealing plate is arranged outside the first sealing plate in a surrounding mode, and the ventilation opening is formed in the motor cavity and communicated with the motor. The closed groove is formed in one side of the first shell; wherein the inner sealing plate and the outer sealing plate are combined to form a labyrinth type air duct, one end of the air duct extends into the motor cavity and is communicated with the ventilation opening, and the first shell and the second shell are connected in a clamped mode so that the sealing strips can be correspondingly connected with the inner sealing plate and the outer sealing plate in an inserted mode, and therefore a sealed cavity for airflow to penetrate through is defined. Airflow enters the air duct and then is exhausted through the exhaust window; according to the utility model, the labyrinth-shaped air channel is formed between the motor and the exhaust window, so that the flowing space of airflow is increased, and the working noise of the dust collector is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cleaning, in particular to a vacuum cleaner with a noise reduction air duct. Background Art

[0002] A vacuum cleaner is a cleaning and sanitary appliance used to remove dust from the floor, carpets, walls, furniture, clothing and various gaps. A vacuum cleaner generally includes a motor that generates suction from an imported power source, a motor air inlet that forms an air path system, a suction nozzle, a filter assembly, a dust box and a shell; the vacuum cleaner motor is the core power source of the vacuum cleaner and is responsible for driving the rotating parts inside the vacuum cleaner. When the vacuum cleaner is running, the motor drives the impeller to rotate at high speed, and after the air inside the vacuum cleaner is discharged, a negative pressure difference is formed inside the vacuum cleaner, and the dust is sucked into the dust box inside the vacuum cleaner body together with the air through the negative pressure difference. However, when the motor is exhausting, a strong airflow is generated due to the compression and push of the air by the high-speed rotating fan blades. When these airflows pass through the exhaust port, due to the shape and size restrictions of the channel, turbulence and vortices will be generated, which will then generate obvious noise. Airflow noise not only affects the user experience of the vacuum cleaner, making the vacuum cleaner make a harsh sound when working, but also may affect the quietness of the surrounding environment, posing a potential threat to the user's hearing health.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum cleaner with a noise reduction air duct which can effectively solve the above technical problems.

[0005] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0006] A vacuum cleaner with a noise reduction air duct, characterized in that it comprises a first shell and a second shell that are mutually engaged, a motor cavity provided at one end of the inner cavity of the second shell and having a motor, an exhaust window provided at the other end of the inner cavity of the second shell, an inner sealing plate arranged around the exhaust window, an outer sealing plate arranged around the first sealing plate, a vent provided in the motor cavity and communicating with the motor, and a sealing strip provided at one end of the first shell;

[0007] Among them, the inner sealing plate and the outer sealing plate are combined to form a maze-like air duct, one end of the air duct extends into the motor cavity and is interconnected with the vent, and the first shell and the second shell are snap-connected so that the closing strip is respectively plugged into the inner sealing plate and the outer sealing plate, thereby defining a closed cavity for airflow to pass through, and the airflow enters the air duct and is discharged through the exhaust window.

[0008] Furthermore, the inner sealing plate and the outer sealing plate are of equal height and width, and the inner sealing plate is provided with at least three bends; wherein the cross-sectional shape of the outer sealing plate is a rectangle.

[0009] Furthermore, a snap-in groove is provided on the outer surface of the second shell, and an air inlet duct is snap-connected in the snap-in groove; a cover cavity for fitting and snapping with the motor cavity is provided at one end of the first shell away from the closing strip, and an air inlet is snap-connected at one end of the cover cavity; one end of the air inlet duct penetrates into the motor cavity and is connected to the air inlet.

[0010] Furthermore, the second housing is provided with a first opening at one end close to the exhaust window for communicating with the air inlet duct, and the first housing is provided with an assembly groove with a dust box at one end away from the cover plate cavity;

[0011] Among them, one end of the assembly groove is provided with a second opening corresponding to the first opening, and one end of the dust box is provided with an ash inlet connected to the second opening, one end of the air inlet duct passes through the first opening and the second opening in sequence to be plugged into the ash inlet, and the air inlet and the dust box are connected to each other through the air inlet duct.

[0012] Furthermore, a HEPA component is inserted into one end of the dust box, a seal is provided at one end of the motor, an opening is provided at one end of the assembly groove for the seal to pass through, and the seal passes through the opening and is tightly buckled onto the HEPA component.

[0013] Furthermore, a dust box cover for buckling with the dust box is detachably connected to the first shell.

[0014] Furthermore, rubber strips are adhered to the top ends of the inner sealing plate and the outer sealing plate.

[0015] Furthermore, the closing strip is arranged on the outer surface of the bottom end of the assembly groove, and a clamping groove is arranged on the closing strip.

[0016] Furthermore, a groove communicating with the exhaust window is formed on the outer surface of the second shell, and a filter element is clamped in the groove.

[0017] Furthermore, a sealing ring is provided between the first shell and the second shell.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model forms a maze-shaped air duct between the motor and the exhaust window, thereby increasing the flow space of the airflow and reducing the working noise of the vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is an exploded view of the utility model.

[0022] Figure 3 It is a cross-sectional view of the utility model.

[0023] Figure 4 This is a first structural schematic diagram of the second shell of the utility model.

[0024] Figure 5 This is a second structural schematic diagram of the second shell of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the first shell of the utility model.

[0026] In the figure: 1. first shell, 2. dust box, 3. second shell, 4. motor, 5. air duct, 6. motor cavity, 7. vent, 8. exhaust window, 9. closing strip, 10. inner sealing plate, 11. outer sealing plate, 12. snap-in groove, 13. air inlet duct, 14. cover plate cavity, 15. air inlet, 16. first opening, 17. second opening, 18. ash inlet, 19. HEPA component, 20. seal, 21. opening, 22. dust box cover, 23. rubber strip, 24. slot, 25. groove, 26. filter, 27. sealing ring, 28. assembly groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0028] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] like Figures 1 to 6 As shown, a vacuum cleaner with a noise reduction air duct includes a first shell 1, a second shell 3 corresponding to the first shell 1, a motor cavity 6 provided at one end of the inner cavity of the second shell 3 and having a motor 4, an exhaust window 8 opened at the other end of the inner cavity of the second shell 3, an inner sealing plate 10 arranged around the outside of the exhaust window 8, an outer sealing plate 11 arranged around the outside of the first sealing plate 10, a vent 7 provided in the motor cavity 6 and interconnected with the motor 4, and a closing strip 9 provided at one end of the first shell 1; wherein the inner sealing plate 10 and the outer sealing plate 11 are combined to form a labyrinth air duct 5, one end of the air duct 5 extends into the motor cavity 6 and is interconnected with the vent 7, the first shell 1 and the second shell 3 are clamped so that the closing strip 9 is respectively plugged into the inner sealing plate 10 and the outer sealing plate 11, thereby defining a closed cavity for airflow to pass through, and the airflow enters the air duct 5 and is discharged through the exhaust window 8.

[0030] Further, such as Figures 1 to 6As shown, the inner sealing plate 10 and the outer sealing plate 11 are of equal height and width, and the inner sealing plate 10 is provided with at least three bends; wherein the cross-sectional shape of the outer sealing plate 11 is rectangular, the closing strip 9 is provided on the outer surface of the bottom end of the assembly groove 28, and the closing strip 9 is provided with a card slot 24, and the outer surface of the second shell 3 is provided with a groove 25 that is interconnected with the exhaust window 8, and a filter element 26 is card-connected in the groove 25; in this embodiment, the groove 25 is provided on the outer surface of the second shell 3, and the bottom end surface of the groove 25 extends to the second shell 3. A convex block is formed in the inner cavity of the shell 3, and the exhaust window 8 is arranged on the top surface of the convex block so that the exhaust window 8 and the groove 25 are connected to each other. The inner sealing plate 10 is wound around the outer side of the convex block with one end of the convex block as the starting point, and the inner sealing plate 10 is provided with at least three 90° bends when winding. The outer sealing plate 11 is arranged on the outer side of the inner sealing plate 10 and there is a gap between the outer sealing plate 11 and the inner sealing plate 10, and the other end of the inner sealing plate 10 is fixed on the outer sealing plate 11, and the cross-sectional shape of the outer sealing plate 11 is rectangular, and the outer sealing plate 11 is formed by the gap. A labyrinth-like air duct 5 is formed with the inner sealing plate 10 through which the airflow passes, and the air duct 5 wraps itself layer by layer and is wound around at least twice; it is worth noting that there are two closing strips 9 in the present embodiment, including a first closing strip for abutting against the outer sealing plate 11, and a second closing strip for abutting against the inner sealing plate 10. When the first shell 1 and the second shell 3 are correspondingly engaged, the card groove 24 on the first closing strip is tightly abutted against the outer sealing plate 11, and the card groove 24 on the second closing strip is tightly abutted against the inner sealing plate 10, so that the air duct 5 forms a closed air duct. In the operation of the present embodiment, the air duct 5 can, on the one hand, lengthen the flow space of the airflow and limit the flow space of the airflow, which can effectively stabilize the airflow velocity and flow direction, and reduce the noise generated by the airflow impact; on the other hand, through the labyrinth characteristics and airtightness of the air duct 5, the air duct 5 can produce surround-type multiple isolations for the airflow noise, which can prevent the noise generated by the airflow flow from being directly transmitted to the outside, thereby avoiding the noise generated when the present embodiment is working.

[0031] In addition, if Figures 1 to 6 As shown, the inner sealing plate 10 and the outer sealing plate 11 are fixed to the inner cavity of the second shell 3, and rubber strips 23 are adhered to the top ends of the inner sealing plate 10 and the outer sealing plate 11; in this embodiment, the rubber strips 23 help to enhance the airtightness between the inner sealing plate 10 and the outer sealing plate 11 and the card slot 24, respectively, to prevent airflow from leaking from the air duct 5, to prevent airflow leakage from causing the airflow to impact the inner sealing plate 10 or the outer sealing plate 11 to generate vibration, and by fixing the inner sealing plate 10 and the outer sealing plate 11 on the second shell 3 respectively, it is possible to avoid displacement of the inner sealing plate 10 or the outer sealing plate 11 due to excessive airflow or excessive impact of airflow, thereby preventing the noise reduction effect of this embodiment from being affected.

[0032] Furthermore, Figures 1 to 6As shown, the outer surface of the second shell 3 is provided with a snap-fit ​​groove 12, and an air inlet duct 13 is snap-fitted into the snap-fit ​​groove 12. The end of the first shell 1 away from the closing strip 9 is provided with a cover plate cavity 14 for engaging with the motor cavity 6, and an air inlet 15 is snap-fitted into one end of the cover plate cavity 14. One end of the air inlet duct 13 penetrates into the motor cavity 6 and communicates with the air inlet 15. The end of the second shell 3 close to the exhaust window 8 is provided with a first opening 16 for communicating with the air inlet duct 13, and the end of the first shell 1 away from the cover plate cavity 14 is provided with an assembly groove 28 with a dust box 2; wherein, one end of the assembly groove 28 is provided with a second opening 17 corresponding to the first opening 16, and one end of the dust box 2 is provided with an ash inlet 18 communicating with the second opening 17, and one end of the air inlet duct 13 sequentially penetrates the first opening 16 and the second opening 17 so as to be plugged into the ash inlet 18. The air inlet 15 and the dust box 2 are connected to each other through the air inlet duct 13; in this embodiment, the air inlet duct 13 is connected to the outer surface of the second shell 3 by snapping, and the cross-sectional shape is 7-shaped, the dust box 2 is arranged in the assembly groove 28, the ash inlet 18 is abutted against the second opening 17, the first opening 16 is used for the air inlet duct 13 to pass through, and one end of the air inlet duct 13 passes through the first opening 16 and snaps into the second opening 17, so that the air inlet duct 13 and the dust box 2 are connected to each other through the ash inlet 18; the motor cavity 6 and the cover The plate cavity 14 is buckled correspondingly, and the air inlet 15 is snapped on one end of the first shell 1 close to the motor cavity, wherein the other end of the air inlet duct 13 passes through the second shell 3 and is plugged into the air inlet 15; it should be noted that a Hypa component 19 is plugged into one end of the dust box 2, a seal 20 is provided at one end of the motor 4, and an opening 21 for the seal 20 to pass through is provided at one end of the assembly groove 28, and the seal 20 passes through the opening 21 and is tightly buckled on the Hypa component 19, and the Hypa component 19 is used to filter the dust entering the dust box 2 In order to remove dust from the dust box, a seal 20 is provided between the motor 4 and the HEPA component 19, and the HEPA component 19 and the seal 20 are tightly buckled together. In actual use, the negative pressure generated by the motor 4 draws the external dust into the air inlet duct 13 through the air inlet 15, and enters the dust box 2 through the ash inlet 18. The tight buckling of the HEPA component 19 and the seal 20 can effectively prevent the airflow adsorbed by the negative pressure of the motor 4 from leaking on the HEPA component 19, thereby further preventing the airflow from leaking and generating noise.

[0033] like Figures 1 to 6 As shown, the first shell 1 is detachably connected with a dust box cover 22 for buckling with the dust box 2; in this embodiment, the dust box cover 22 is detachably snap-connected to the first shell 1, so that the user can open the dust box cover 22 to dump the dust.

[0034] like Figures 1 to 6 As shown, a sealing ring 27 is provided between the first shell 1 and the second shell 3. In this embodiment, the sealing ring 27 can enhance the stability of the structure of this embodiment and enhance the service life of this embodiment.

[0035] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A vacuum cleaner with a noise reduction air duct, characterized in that: The invention comprises a first shell (1) and a second shell (3) which are mutually engaged, a motor cavity (6) provided at one end of the inner cavity of the second shell (3) and having a motor (4), an exhaust window (8) provided at the other end of the inner cavity of the second shell (3), an inner sealing plate (10) arranged around the exhaust window (8), an outer sealing plate (11) arranged around the inner sealing plate (10), a vent (7) provided in the motor cavity (6) and communicating with the motor (4), and a closing strip (9) provided at one end of the first shell (1); The inner sealing plate (10) and the outer sealing plate (11) are combined to form a labyrinth-like air duct (5), one end of the air duct (5) extends into the motor cavity (6) and is interconnected with the vent (7), the first shell (1) and the second shell (3) are snap-fitted so that the closing strip (9) is respectively plugged into the inner sealing plate (10) and the outer sealing plate (11), thereby defining a closed cavity for air flow to pass through, and the air flow enters the air duct (5) and is discharged through the exhaust window (8).

2. A vacuum cleaner with a noise reduction air duct as claimed in claim 1, characterized in that: The inner sealing plate (10) and the outer sealing plate (11) are of equal height and width, and the inner sealing plate (10) is provided with at least three bends; wherein the cross-sectional shape of the outer sealing plate (11) is rectangular.

3. A vacuum cleaner with a noise reduction air duct as claimed in claim 1, characterized in that: The outer surface of the second shell (3) is provided with a snap-fit ​​groove (12), and an air inlet duct (13) is snap-fitted into the snap-fit ​​groove (12); the end of the first shell (1) away from the closing strip (9) is provided with a cover cavity (14) for engaging with the motor cavity (6), and one end of the cover cavity (14) is snap-fitted with an air inlet (15); one end of the air inlet duct (13) penetrates into the motor cavity (6) and is connected to the air inlet (15).

4. A vacuum cleaner with a noise reduction air duct as claimed in claim 3, characterized in that: The second shell (3) is provided with a first opening (16) at one end close to the exhaust window (8) for communicating with the air inlet duct (13), and the first shell (1) is provided with a mounting groove (28) with a dust box (2) at one end away from the cover plate cavity (14); One end of the assembly groove (28) is provided with a second opening (17) corresponding to the first opening (16), and one end of the dust box (2) is provided with an ash inlet (18) interconnected with the second opening (17), one end of the air inlet duct (13) passes through the first opening (16) and the second opening (17) in sequence so as to be plugged into the ash inlet (18), and the air inlet (15) and the dust box (2) are interconnected via the air inlet duct (13).

5. A vacuum cleaner with a noise reduction air duct as claimed in claim 4, characterized in that: A HEPA component (19) is inserted into one end of the dust box (2), a sealing member (20) is provided at one end of the motor (4), and an opening (21) for the sealing member (20) to pass through is provided at one end of the assembly groove (28), and the sealing member (20) passes through the opening (21) and is tightly buckled onto the HEPA component (19).

6. A vacuum cleaner with a noise reduction air duct as claimed in claim 5, characterized in that: The first shell (1) is detachably connected to a dust box cover (22) for buckling with the dust box (2).

7. A vacuum cleaner with a noise reduction air duct as claimed in claim 6, characterized in that: Rubber strips (23) are adhered to the top ends of the inner sealing plate (10) and the outer sealing plate (11).

8. A vacuum cleaner with a noise reduction air duct as claimed in claim 7, characterized in that: The closing strip (9) is arranged on the outer surface of the bottom end of the assembly groove (28), and a clamping groove (24) is arranged on the closing strip (9).

9. A vacuum cleaner with a noise reduction air duct as claimed in claim 1, characterized in that: The outer surface of the second shell (3) is provided with a groove (25) which is in communication with the exhaust window (8), and a filter element (26) is clamped in the groove (25).

10. A vacuum cleaner with a noise reduction air duct as claimed in claim 1, characterized in that: A sealing ring (27) is provided between the first shell (1) and the second shell (3).

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