Noise reduction dust collector

Abstract

The utility model discloses a noise-reduction dust collector. The dust collector comprises an upper machine shell, a lower machine shell, an upper motor cover, a lower motor cover, a dust cup, a sub-motor cover and a motor, wherein the upper machine shell and the lower machine shell are clamped with each other; the upper motor cover is arranged at one end of an inner cavity of the upper machine shell; the lower motor cover is arranged in the lower machine shell and is clamped with the upper motor cover in a matched manner; the exhaust cylinder is arranged in the lower motor cover and is communicated with the sub-motor cover; a gap exists between the upper motor cover and the sub-motor cover, and the upper motor cover is connected with the lower motor cover in an inserted mode, so that the sub-motor cover and the upper motor cover are communicated with each other through the exhaust cylinder, and a secondary air channel used for air outlet of the motor is formed. According to the utility model, the upper motor cover and the sub-motor cover are matched with each other, so that the motor cover forms a secondary air duct, the air outlet path of the motor is lengthened, and the air outlet noise consumption is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, in particular to a noise-reducing vacuum cleaner. Background Art

[0002] As an essential tool for modern household cleaning, the working principle of a vacuum cleaner mainly relies on the airflow generated by a motor drive. Dust and debris are sucked in through the dust inlet of the vacuum cleaner. The dust and debris pass through the filter system of the vacuum cleaner, are filtered out and remain inside the vacuum cleaner, and the clean air is discharged through the exhaust port. However, when the motor is running at high speed, the noise generated by the friction between the fan and the air, as well as the noise generated when the airflow flows inside the vacuum cleaner, make the vacuum cleaner make a loud noise when working. This noise not only affects the user's experience and makes it difficult to use the vacuum cleaner in an environment that needs to be kept quiet, but also the user's hearing is easily damaged if the user is in a high-noise environment for a long time, and may even cause health problems such as hearing loss. In the prior art, a silencer sponge is often added to the vacuum cleaner to improve the noise reduction ability of the vacuum cleaner. However, the thermal conductivity of the sound insulation sponge is relatively poor, which may hinder the heat dissipation inside the motor. After long-term use, the temperature of the motor may rise, affecting the normal operation and life of the motor. When the exhaust wind force is large, the silencer sponge cannot effectively block the noise.

[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 noise-reducing vacuum cleaner which can effectively solve the above-mentioned technical problems.

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

[0006] A noise reduction vacuum cleaner, characterized in that: it includes an upper shell and a lower shell that are clamped together, an upper motor cover arranged at one end of the inner cavity of the upper shell, a lower motor cover arranged in the lower shell and used to cooperate with the upper motor cover for clamping, a dust cup clamped at one end of the upper shell and connected with the upper motor cover, a sub-motor cover arranged in the inner cavity of the upper motor cover, a motor arranged in the sub-motor cover, and an exhaust pipe arranged in the lower motor cover and used to communicate with the sub-motor cover; wherein there is a gap between the upper motor cover and the sub-motor cover, and the upper motor cover is connected to the lower motor cover so that the sub-motor cover and the upper motor cover are connected to each other through the exhaust pipe, and form a secondary air duct for the motor to exhaust air.

[0007] Furthermore, the inner wall of the exhaust cylinder is evenly provided with a plurality of cylindrical air ducts for air flow out; wherein, one end of the plurality of cylindrical air ducts extends to the outside of the lower motor cover.

[0008] Furthermore, a partition plate extends from one end of the exhaust duct close to the lower casing, and the partition plate abuts against and divides the inner cavity of the lower casing, so that an opening for airflow to pass through exists between the bottom end of the lower motor cover and the inner cavity of the casing.

[0009] Furthermore, a first air outlet is provided at the top of the upper motor cover, and a second air outlet corresponding to and connected to the first air outlet is opened at the top of the upper housing.

[0010] Furthermore, a first connecting port is provided at one end of the dust cup, an interface for interconnecting with the first connecting port is provided on one side of the upper housing, and an assembly cavity for cooperating and communicating with the interface is provided at one end of the upper motor cover, so that the dust cup and the assembly cavity are interconnected through the first connecting port; wherein a HEPA assembly is provided in the assembly cavity.

[0011] Furthermore, the upper shell and the lower shell are snap-fitted to form a cavity for airflow to pass through between the upper shell and the upper motor cover, a second connecting port is provided at one end of the dust cup close to the connecting groove, and a third connecting port for connecting the cavity and the dust cup is provided in the connecting groove.

[0012] Furthermore, a mesh window for communicating with the assembly cavity is provided at the top of the cavity.

[0013] Furthermore, the upper motor cover and the sub-motor cover are an integrated structure, and one end of the sub-motor cover is provided with an air inlet interconnected with the assembly cavity.

[0014] Furthermore, an ash inlet is provided at one end of the lower casing.

[0015] Furthermore, a rubber sealing ring is provided between the upper motor cover and the lower motor cover.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model enables the motor cover to form a secondary air duct through the mutual cooperation between the upper motor cover and the sub-motor cover, thereby lengthening the air outlet path of the motor and enhancing the consumption of wind noise at the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a three-dimensional diagram of the utility model.

[0019] Figure 2 It is a cross-sectional view of the utility model.

[0020] Figure 3 It is an exploded view of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the upper motor cover of the utility model.

[0022] Figure 5 It is a cross-sectional view of the upper motor cover of the utility model.

[0023] Figure 6 It is a structural schematic diagram of the motor cover of the utility model.

[0024] Figure 7 This is a first structural schematic diagram of the lower motor cover of the utility model.

[0025] Figure 8 This is a second structural schematic diagram of the lower motor cover of the utility model.

[0026] In the figure: 1. upper casing, 2. upper motor cover, 3. dust cup, 4. lower motor cover, 5. sub-motor cover, 6. motor, 7. lower casing, 8. exhaust pipe, 9. cylindrical air duct, 10. partition plate, 11. opening, 12. cavity, 13. second air outlet, 14. interface, 15. first connecting port, 16. HEPA component, 17. assembly cavity, 18. connecting groove, 19. second connecting port, 20. secondary air duct, 21. third connecting port, 22. rubber sealing ring, 23. ash inlet, 24. second air outlet, 25. air inlet, 26. mesh window. 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 8 As shown, a noise reduction vacuum cleaner includes an upper shell 1 and a lower shell 7 which are clamped to each other, an upper motor cover 2 arranged at one end of the inner cavity of the upper shell 1, a lower motor cover 4 arranged in the lower shell 7 and used for clamping with the upper motor cover 2, a dust cup 3 clamped to one end of the upper shell 2 and communicated with the upper motor cover 2, a sub-motor cover 5 arranged in the inner cavity of the upper motor cover 2 and with an exhaust port 8, and a motor 6 arranged in the sub-motor cover 3; wherein, there is a gap between the upper motor cover 2 and the sub-motor cover 5, and the upper motor cover 2 is connected to the lower motor cover 4 so that the sub-motor cover 5 is connected to the upper motor cover 2 through the exhaust pipe 8, and the sub-motor cover 5 and the upper motor cover 2 form a secondary air duct 20 for the motor 6 to exhaust air.

[0030] Further, such as Figures 1 to 8As shown, one end of the lower housing 7 is provided with an ash inlet 23, one end of the upper housing 1 is provided with a connecting groove 18 for plugging with the dust cup 3, one end of the dust cup 3 is provided with a first connecting port 15, one end of the upper motor cover 2 is provided with an assembly cavity 17 for plugging with the first connecting port 15, one end of the sub-motor cover 5 is provided with an air inlet 25 interconnected with the assembly cavity 17, one side of the upper housing 1 is provided with an interface 14 for being sleeved on the assembly cavity 17, and the dust cup 3 is connected to the sub-motor cover 5 through the air inlet 25; wherein, a HEPA assembly 16 is provided in the assembly cavity 17; in this embodiment, the upper motor cover 2 and the lower motor cover 4 are snap-fitted to form a semi-enclosed cavity, and the dust cup 3 is correspondingly snap-fitted to the connecting groove 1 of the upper housing 1 8, the dust cup 3 is plugged into the upper housing 1 through the interface 14, and the interface 14 is interconnected with the first connecting port 15, so that the first connecting port 15 is interconnected with the air inlet 25 through the interface 14, so that the inner cavity of the dust cup 3 and the inner cavity of the sub-motor cover 5 are interconnected through the air inlet 25. In actual application, the negative pressure generated by the motor 6 makes the external airflow carry the dust into the inner cavity of the dust cup 3 through the ash inlet 23, and the dust in the inner cavity of the dust cup 3 is separated into large particles of dust and airflow through the HEPA component 16. The airflow enters the secondary air duct 20 formed by the upper motor cover 2 and the lower motor cover 4 through the first connecting port 15, and finally the airflow is discharged through the exhaust pipe 8 in the lower motor cover 4.

[0031] Specifically, Figures 1 to 8 As shown, the inner wall of the exhaust cylinder 8 is evenly provided with a plurality of cylindrical air ducts 9 for air flow out; wherein, one end of the plurality of cylindrical air ducts 9 extends to the outside of the lower motor cover 4. A partition plate 10 extends from the end of the exhaust cylinder 8 close to the lower casing 1, and the partition plate 10 abuts against the inner cavity of the lower casing 7 and divides the inner cavity of the lower casing 7, so that an opening 11 for air flow to pass through exists between the bottom end of the lower motor cover 4 and the inner cavity of the casing 1; in this embodiment, the lower motor cover 4 and the upper motor cover 2 are fixedly connected by screws so that the lower motor cover 4 and the upper motor cover 2 form a first cavity, the sub-motor cover 3 and the connecting tube 14 are plugged in cooperation so that a second cavity is formed between the sub-motor cover 3 and the exhaust cylinder 8, the motor 6 is arranged in the second cavity, the first cavity is sleeved on the outside of the second cavity, and the second cavity is connected to the first cavity through the cylindrical air duct 9, so that the first cavity It is combined with the second cavity to form a secondary air duct 20 for limiting the flow of air. During the use of this embodiment, when the motor 7 is started, the airflow enters the secondary air duct 20 through the exhaust port 8. The flow path of the airflow in the upper motor cover 2 is lengthened through the secondary air duct 20, which effectively enhances the airflow noise reduction capability of this embodiment. Furthermore, since the secondary air duct 20 is formed by a double-layer motor cover composed of the upper motor cover 2 and the sub-motor cover 5, and the upper motor cover 2 and the sub-motor cover 5 are an integrated structure, this embodiment can also effectively improve the barrier performance of the upper motor cover 2 to the noise generated by the motor 7 through the setting of multiple layers of motor covers, thereby further improving the noise reduction function of this embodiment.

[0032] It is worth noting that Figures 1 to 8 As shown, the exhaust port 8 in this embodiment is arranged at the top of the sub-motor cover 3, the exhaust port of the motor 6 is arranged at the open end of the sub-motor cover 2, the top of the upper motor cover 2 is provided with a first air outlet 24, and the top of the upper shell 1 is provided with a second air outlet 13 corresponding to the first air outlet 24. During the use of this embodiment, the airflow generated by the motor 6 needs to flow in from the top of the sub-motor cover, then go around to the secondary air duct 20 from the bottom, and then enter the second air outlet 13 on the top of the upper shell 1 through the first air outlet 24 to discharge air, thereby lengthening the air outlet duct, further enhancing the consumption of air outlet wind noise, and reducing the noise generated by the air flow.

[0033] To further optimize this embodiment, Figures 1 to 8 As shown, the upper housing 1 and the lower housing 7 are snap-fitted so that a cavity 12 for airflow to pass through is formed between the upper housing 1 and the upper motor cover 2. A second connecting port 19 is provided at one end of the dust cup 3 close to the connecting groove 18. A third connecting port 21 for connecting the cavity 12 and the dust cup 3 is provided in the connecting groove 18. A mesh window 26 for connecting the assembly cavity 17 is provided at the top of the cavity 12. In this embodiment, the cavity 12 and the assembly cavity 17 are interconnected through the mesh window 26, so that the cavity 12 is interconnected with the sub-motor cover 5 through the air inlet. By setting the cavity 12, the airflow entering the sub-motor cover 5 from the dust cup 3 can be separated, and the flow space of part of the airflow is increased to facilitate the circulation of the airflow, which is beneficial to reducing wind noise while enhancing the use effect of the embodiment.

[0034] like Figures 1 to 8 As shown, a rubber sealing ring 22 is provided between the upper motor cover 2 and the lower motor cover 4; in this embodiment, the rubber sealing ring 22 can effectively prevent the airflow from overflowing through the gap between the upper motor cover 2 and the lower motor cover 4, thereby affecting the noise reduction effect 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 noise reduction vacuum cleaner, characterized in that: The invention comprises an upper housing (1) and a lower housing (7) which are engaged with each other, an upper motor cover (2) arranged at one end of the inner cavity of the upper housing (1), a lower motor cover (4) arranged in the lower housing (7) and used for engaging with the upper motor cover (2), a dust cup (3) engaged with one end of the upper housing (1) and connected with the upper motor cover (2), a sub-motor cover (5) arranged in the inner cavity of the upper motor cover (2), a motor (6) arranged in the sub-motor cover (5), and an exhaust pipe (8) arranged in the lower motor cover (4) and used for communicating with the sub-motor cover (5); wherein a gap exists between the upper motor cover (2) and the sub-motor cover (5), and the upper motor cover (2) and the lower motor cover (4) are plugged together so that the sub-motor cover (5) and the upper motor cover (2) are connected with each other through the exhaust pipe (8), and a secondary air duct (20) is formed for the motor (6) to discharge air.

2. A noise reduction vacuum cleaner according to claim 1, characterized in that: The inner wall of the exhaust cylinder (8) is evenly provided with a plurality of cylindrical air ducts (9) for air flow out; wherein one end of the plurality of cylindrical air ducts (9) extends to the outside of the lower motor cover (4).

3. A noise reduction vacuum cleaner according to claim 2, characterized in that: A partition plate (10) extends from one end of the exhaust pipe (8) close to the lower casing (7), and the partition plate (10) abuts against the inner cavity of the lower casing (7) and divides the inner cavity of the lower casing (7), so that an opening (11) for airflow to pass through exists between the bottom end of the lower motor cover (4) and the inner cavity of the upper casing (1).

4. A noise reduction vacuum cleaner according to claim 3, characterized in that: The top of the upper motor cover (2) is provided with a first air outlet (24), and the top of the upper housing (1) is provided with a second air outlet (13) corresponding to and connected to the first air outlet (24).

5. A noise reduction vacuum cleaner according to claim 4, characterized in that: A first connection port (15) is provided at one end of the dust cup (3), an interface (14) for communicating with the first connection port (15) is provided at one side of the upper housing (1), and an assembly cavity (17) for communicating with the interface (14) is provided at one end of the upper motor cover (2), so that the dust cup (3) and the assembly cavity (17) are in communication with each other via the first connection port (15); wherein a HEPA assembly (16) is provided in the assembly cavity (17).

6. A noise reduction vacuum cleaner according to claim 5, characterized in that: One end of the upper housing (1) is provided with a connecting groove (18) for assembling a dust cup (3); an end of the dust cup (3) close to the connecting groove (18) is provided with a second connecting port (19); an end of the upper motor cover (2) close to the assembly cavity (17) is provided with a cavity (12) for airflow to pass through at the bottom; and a third connecting port (21) for connecting the cavity (12) and the dust cup (3) is provided in the connecting groove (18).

7. A noise reduction vacuum cleaner according to claim 6, characterized in that: A mesh window (26) for communicating with the assembly cavity (17) is provided at the top end of the cavity (12).

8. A noise reduction vacuum cleaner according to claim 7, characterized in that: The upper motor cover (2) and the sub-motor cover (5) are of an integrated structure, and one end of the sub-motor cover (5) is provided with an air inlet (25) which is in communication with the assembly cavity (17).

9. The noise reduction vacuum cleaner according to claim 1, characterized in that: An ash inlet (23) is provided at one end of the lower casing (7).

10. A noise reduction vacuum cleaner according to claim 9, characterized in that: A rubber sealing ring (22) is provided between the upper motor cover (2) and the lower motor cover (4).

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