Hand-held dust collector capable of reducing noise

Abstract

The utility model discloses a handheld dust collector capable of reducing noise. The dust collector comprises a handheld part with a power supply piece, a dust cup part arranged at one end of the handheld part, an air inlet duct arranged on one side of the dust cup part, a motor part arranged at the upper end of the dust cup part, a motor main body arranged in the motor part, a motor cover arranged on the motor main body in a sleeving manner, a motor cavity arranged in the motor cover, and an air exhaust piece arranged in the motor cavity in a sleeving manner; wherein the motor part is communicated with the dust cup part, an air outlet is formed in one side of the motor cavity, a plurality of baffles are evenly arranged on the periphery of the air exhaust part in a surrounding mode, and the power supply part is connected with the motor body through an electric wire, so that the motor body sucks airflow into the motor cavity through the air inlet channel; airflow enters the air exhaust piece through the air outlet and flows out from inside to outside through the baffle; according to the embodiment, the exhaust part is arranged in the motor cover, so that the flowing direction of airflow can be effectively unified through the baffle, the airflow is prevented from irregularly flowing in the motor cover to form hedging, and noise is reduced.

Description

Technical Field

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

[0002] In the field of vacuum cleaners, vacuum cleaners can be roughly divided into horizontal, vertical, handheld, etc. according to their structure. A handheld vacuum cleaner includes a motor, a dust cup, and a cyclone separator disposed in the dust cup. The motor generates negative air pressure in a sealed shell by driving the blades to rotate at high speed, generating airflow to absorb dust, and the dust and air are separated by the cyclone separator, and the separated air is discharged from the body. Among the existing handheld vacuum cleaners, the air outlet of the handheld vacuum cleaners currently on the market is directly from the back of the motor. However, due to the direct air outlet of the motor, the air duct is relatively short, and the airflow is very easy to produce a collision, resulting in a relatively large noise, which affects the use.

[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 handheld vacuum cleaner 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 handheld vacuum cleaner with noise reduction, characterized in that it includes a handheld part with a power supply, a dust cup part arranged at one end of the handheld part, an air inlet duct arranged at one side of the dust cup part, a motor part arranged at the upper end of the dust cup part, a motor body arranged inside the motor part, a motor cover mounted on the motor body, a motor cavity arranged inside the motor cover, and an exhaust part mounted in the motor cavity; wherein the motor part is connected to the dust cup part, an air outlet is arranged on one side of the motor cavity, a plurality of baffles are evenly arranged around the exhaust part, the power supply is connected to the motor body with electric wires, so that the motor body sucks air into the motor cavity through the air inlet duct, and the air enters the exhaust part through the air outlet and flows out from the inside to the outside through the baffle.

[0007] Furthermore, the exhaust member is a hollow cylindrical structure, and its cross section is an "I"-shaped structure, the baffle is detachably connected to the exhaust member, and the rotation angle range of any baffle on the exhaust member is 30° to 60°.

[0008] Furthermore, a connecting tube is sleeved on the exhaust member, a gap exists between the connecting tube and the baffle, a plurality of second openings are formed at one end of the exhaust member, and the second openings are distributed in an arc shape on the exhaust member.

[0009] Furthermore, a windshield is inserted into the exhaust member, a gap exists between the windshield and the baffle, and the windshield is provided with a mesh window, and the mesh window corresponds to the position of the air outlet.

[0010] Furthermore, a boss extends from the upper end of the motor cavity, a locking plate is buckled on the boss, a concave connecting disk is provided at the top of the motor cover, a cover plate is provided at the top of the connecting disk, the locking plate is abutted against the connecting disk, and a plurality of first openings are annularly provided on the connecting disk.

[0011] Furthermore, a plurality of connecting grooves are symmetrically provided around the boss, and a plurality of connecting blocks matching the shape and position of the connecting grooves extend upward from one end of the exhaust piece, the exhaust piece is clamped on the outer surface of the motor cavity through the connecting blocks, and one end of the exhaust piece abuts against the inner wall of the motor cover.

[0012] Furthermore, the baffles are of rectangular structure, and there is a gap between any two of the baffles.

[0013] Furthermore, a motor inner shell is provided in the motor part, the motor cover is a cylindrical structure, the motor inner shell is sleeved on the outer surface of the motor cover, and an air inlet is provided at one end of the motor inner shell, a cyclone separator is connected to the end of the motor inner shell close to the air inlet, and the cyclone separator is connected to the motor inner shell through the air inlet.

[0014] Furthermore, the dust cup part is detachably connected to the motor part, and the dust cup part covers the cyclone separator.

[0015] Furthermore, the dust cup portion and the air inlet duct are an integrated structure.

[0016] Compared with the prior art, the utility model has the following beneficial effects: by arranging an exhaust piece in the motor cover, the present embodiment can effectively unify the flow direction of the airflow through the baffle, prevent the airflow from flowing irregularly in the motor cover to form a collision, and reduce noise. 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 structural schematic 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 motor cover of the utility model.

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

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

[0024] In the figure: 1. hand-held part, 2. dust cup part, 3. motor part, 4. motor body, 5. motor cover, 6. exhaust part, 7. motor cavity, 8. air outlet, 9. power supply part, 10. baffle, 11. boss, 12. connecting groove, 13. connecting block, 14. connecting cylinder, 15. mesh window, 16. motor inner shell, 17. air inlet, 18. cyclone separator, 19. second opening, 20. wind shield, 21. locking plate, 22. connecting plate, 23. first opening, 24. cover plate, 25. air inlet duct. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] like Figures 1 to 6As shown, a noise-reducing handheld vacuum cleaner comprises a handheld portion 1 with a power supply unit 9, a dust cup portion 2 arranged at one end of the handheld portion 1, an air inlet duct 25 arranged at one side of the dust cup portion 2, a motor portion 3 arranged at the upper end of the dust cup portion 2, a motor body 4 arranged inside the motor portion 3, a motor cover 5 sleeved on the motor body 4, a motor cavity 7 arranged inside the motor cover 5, and an exhaust member 6 sleeved in the motor cavity 7; wherein the motor portion 3 is communicated with the dust cup portion 2, an air outlet 8 is arranged on one side of the motor cavity 7, a plurality of baffles 10 are evenly arranged around the exhaust member 6, the power supply unit 9 is connected to the motor body 4 with electric wires, so that the motor body 4 sucks external airflow into the motor cavity 7 through the air inlet duct 25, and the airflow enters the exhaust member 6 through the air outlet 8 and flows out through the baffle 10.

[0028] like Figure 2 As shown, a motor inner shell 16 is also provided in the motor part 3, and the motor inner shell 16 is sleeved on the outer surface of the motor cover 5, and an air inlet 17 is provided at one end of the motor inner shell 16, and a cyclone separator 18 is connected to the end of the motor inner shell 16 close to the air inlet 17, and the cyclone separator 18 is communicated with the motor inner shell 16 through the air inlet 17; the dust cup part 2 is detachably connected to the motor part 3, and the dust cup part 2 covers the cyclone separator 18, and the dust cup part 2 and the air inlet duct 25 are an integrated structure; in this embodiment, the suction force generated by the motor body 4 sucks the airflow entrained with dust into the dust cup part 2 through the air inlet duct 25, and the cyclone separator 18 separates the airflow entrained with dust into clean airflow and dust, and the dust accumulates in the inner cavity of the dust cup part 2, and the airflow enters the motor part 3 through the cyclone separator 18 and the air inlet 17 in turn, and the exhaust piece 6 diverts the airflow entering the motor part 3 into several streams, and discharges them from one end of the motor part 3.

[0029] Specifically, Figure 3 and Figure 6 As shown, the exhaust member 6 is a cylindrical structure, and its cross section is in the shape of an "I" character, a connecting tube 14 is sleeved on the outer side of the exhaust member 6, any one end of the connecting tube 14 is in contact with the outer surface of any one end of the exhaust member 6, and there is a gap between the connecting tube 14 and the baffle 10, and a windshield 20 is inserted into the windshield 6, and the windshield 20 is provided with a mesh window 15, the mesh window 15 corresponds to the position of the air outlet 8, and there is also a gap between the windshield 20 and the baffle 10; in the present embodiment, the exhaust member 6 is arranged between the windshield 20 and the connecting tube 14, so that an air duct for airflow to enter is formed between the windshield 20 and the connecting tube 14, in actual application, after the airflow enters the motor part 3 through the air inlet 17, it enters the air duct formed by the windshield 20 and the connecting tube 14 through the mesh window 15 on the windshield 20, so that the airflow flows in the air duct, and the flow path of the airflow in the motor part 3 is increased through the air duct, which is sufficient to effectively reduce the noise generated by the airflow in the present embodiment.

[0030] It is worth noting that the baffle 10 is detachably connected to the exhaust member 6, there is a gap between any two baffles 10, and the rotation angle range of any baffle 10 on the exhaust member 6 is 30° to 60°; in this embodiment, the baffle 10 is movably connected to the exhaust member 6, and the baffle 10 is in the air duct formed by the wind shield 20 and the connecting tube 14. When the airflow passes through the exhaust member 6, the wind force generated by the airflow enables the baffle 10 to rotate in the direction of the airflow; in actual application, when the airflow enters the air duct formed by the wind shield 20 and the connecting tube 14, the wind force generated by the airflow causes the baffle 10 to rotate at the same time. After being impacted by a large amount of airflow, the baffle 10 will unify the rotation direction, so that the flow direction of the airflow flowing in the rotation direction of the baffle 10 is also unified, and the impact force generated by the airflow and the motor cover 5 is reduced, which can effectively prevent the airflow from flowing irregularly in the motor cover 5 to form a collision, and avoid the airflow from colliding with other parts in the motor cover 5 to produce whistling, which is convenient for smooth airflow and can further reduce the noise generated by this embodiment.

[0031] like Figure 4 As shown, a boss 11 extends from the upper end of the motor cavity 7, and a plurality of connecting grooves 12 are symmetrically arranged around the boss 11. A plurality of connecting blocks 13 matching the shape and position of the connecting grooves 12 are extended upward from one end of the exhaust member 6. The exhaust member 6 is snap-fitted to the outer surface of the motor cavity 7 through the connecting block 13, and one end of the exhaust member 6 abuts against the inner wall of the motor cover 5. In this embodiment, a total of two connecting grooves 12 are arranged on the boss 11, and the connecting grooves 12 are symmetrically arranged on the boss 11. A total of two connecting blocks 13 are arranged on the exhaust member 6, and the connecting blocks 13 are also symmetrically arranged on the exhaust member 6. The connecting grooves 12 are correspondingly snap-fitted to the connecting blocks 13, so that the exhaust member 6 can be easily It is snap-fitted with the outer surface of the motor cavity 7, and since the cross-section of the exhaust piece 6 is in the shape of an "I" character, the shape structure of one end of the exhaust piece 6 matches the shape structure of one end of the motor cover 5, so that when the exhaust piece 6 is inserted into the motor cover 5 and snapped with the motor cavity 7, either end of the exhaust piece 6 is tightly abutted against the inner wall of the motor cover 5, preventing the formation of a gap between the motor cover 5 and the exhaust piece 6, and effectively avoiding the airflow entering the gap to generate a large airflow sound, and through the abutment of the exhaust piece 6 with the motor cover 5, it is also possible to further avoid the excessive airflow intensity generated in the motor part 3, stabilize the connection structure between the exhaust piece 6 and the motor cover 5, and enhance the use effect of this embodiment.

[0032] Further, such as Figures 1 to 6 As shown, a windshield 20 is provided on the inner side of the exhaust member 6, and a plurality of second openings 19 are provided near the edge of one end of the exhaust member 6 close to the connecting block 13. The second openings 19 are distributed in an arc shape at one end of the exhaust member 6, and the airflow flows out from the air duct formed by the windshield 20 and the connecting tube 14 through the second openings 19.

[0033] like Figure 4 and Figure 6As shown, a locking plate 21 is buckled on the boss 11, a concave connecting plate 22 is provided on the top of the motor cover 5, the locking plate 21 abuts against the inner wall of the bottom end of the connecting plate 22, a plurality of first openings 23 are evenly arranged on the connecting plate 22, and a cover plate 24 is provided on the top of the connecting plate 22; in the present embodiment, the first opening 23 corresponds to the position of the second opening 19, and during the implementation process, the airflow can flow into the first opening 23 through the second opening 19, and be discharged from the motor part 3 through the first opening 23.

[0034] Working principle: When this embodiment is started, the motor body 4 generates suction, so that the external airflow carrying dust enters the dust cup part 2 through the air inlet channel 25, and the cyclone separator 18 separates the airflow into clean airflow and dust. The dust accumulates in the dust cup part 2, and the clean airflow enters the motor part 3 through the cyclone separator 18. The clean airflow enters the motor body 4 through the air inlet 17, and the clean airflow enters the air duct formed by the wind shield cylinder 20 and the connecting cylinder 14 through the mesh window 15 on the wind shield cylinder 20. Thereafter, the clean airflow flows into the connecting disk 22 from the air duct formed by the wind shield cylinder 20 and the connecting cylinder 14 through the second opening 19, and is finally discharged from the motor part 3 through the first opening 23.

[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 handheld vacuum cleaner capable of reducing noise, characterized in that: The invention comprises a handheld part (1) having a power supply unit (9), a dust cup part (2) arranged at one end of the handheld part (1), an air inlet duct (25) arranged at one side of the dust cup part (2), a motor part (3) arranged at the upper end of the dust cup part (2), a motor body (4) arranged inside the motor part (3), a motor cover (5) sleeved on the motor body (4), a motor cavity (7) arranged inside the motor cover (5), and an exhaust part (6) sleeved in the motor cavity (7); wherein the motor The motor cavity (7) is connected to the dust cup portion (3), an air outlet (8) is provided on one side of the motor cavity (7), a plurality of rotatable baffles (10) are evenly arranged around the exhaust member (6), and the power supply member (9) is connected to the motor body (4) by electric wires, so that the motor body (4) draws external air into the motor cavity (7) through the air inlet duct (25), and the air enters the exhaust member (6) through the air outlet (8) and flows out from the inside to the outside through the baffle (10).

2. A noise-reducing handheld vacuum cleaner according to claim 1, characterized in that: The exhaust member (6) is a hollow cylindrical structure, and its cross section is an "I"-shaped structure. The baffle plate (10) is detachably connected to the exhaust member (6), and the rotation angle range of any baffle plate (10) on the exhaust member (6) is 30° to 60°.

3. A noise-reducing handheld vacuum cleaner as claimed in claim 2, characterized in that: A connecting tube (14) is sleeved on the exhaust member (6), a gap exists between the connecting tube (14) and the baffle (10), a plurality of second openings (19) are formed at one end of the exhaust member (6), and the second openings (19) are distributed in an arc shape on the exhaust member (6).

4. A noise-reducing handheld vacuum cleaner as claimed in claim 3, characterized in that: A windshield cylinder (20) is inserted into the air exhaust member (6), a gap exists between the windshield cylinder (20) and the baffle plate (10), and the windshield cylinder (20) is provided with a mesh window (15), and the mesh window (15) corresponds to the position of the air outlet (8).

5. A noise-reducing handheld vacuum cleaner as claimed in claim 4, characterized in that: A boss (11) extends from the upper end of the motor cavity (7), a locking plate (21) is buckled onto the boss (11), a concave connecting disk (22) is provided at the top end of the motor cover (5), a cover plate (24) is provided at the top end of the connecting disk (22), the locking plate (21) abuts against the connecting disk (22), and a plurality of first openings (23) are provided in an annular manner on the connecting disk (22).

6. A noise-reducing handheld vacuum cleaner according to claim 5, characterized in that: A plurality of connecting grooves (12) are symmetrically arranged around the boss (11); a plurality of connecting blocks (13) are extended upward from one end of the exhaust member (6) and are matched in shape and position with the connecting grooves (12); the exhaust member (6) is clamped on the outer surface of the motor cavity (7) through the connecting blocks (13), and one end of the exhaust member (6) is in contact with the inner wall of the motor cover (5).

7. A noise-reducing handheld vacuum cleaner according to claim 1, characterized in that: The baffle plates (10) are of a rectangular structure, and there is a gap between any two of the baffle plates (10).

8. The noise-reducing handheld vacuum cleaner according to claim 1, characterized in that: The motor part (3) is provided with a motor inner shell (16), the motor cover (5) is a cylindrical structure, the motor inner shell (16) is sleeved on the outer surface of the motor cover (5), and an air inlet (17) is provided at one end of the motor inner shell (16), and a cyclone separator (18) is connected to one end of the motor inner shell (16) close to the air inlet (17), and the cyclone separator (18) is connected to the motor inner shell (16) through the air inlet (17).

9. A noise-reducing handheld vacuum cleaner according to claim 8, characterized in that: The dust cup part (2) is detachably connected to the motor part (3), and the dust cup part (2) covers the cyclone separator (18).

10. A noise-reducing handheld vacuum cleaner according to claim 9, characterized in that: The dust cup portion (2) and the air inlet duct (25) are an integrated structure.

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