Disclosure of Invention
Accordingly, it is necessary to provide a dust collecting apparatus and a dust collecting device which are less noisy in operation.
A dust extraction device comprising:
a housing;
The air flow generator is arranged in the shell and provides air flow suction force for driving external air flow to flow into the dust collection device;
A first air-dust separating member disposed within the housing and having a first air-dust separating chamber located upstream of the air flow generator;
The first air-dust separation piece is arranged around the periphery of the air flow generator, and an exhaust channel which is positioned at the downstream of the air flow generator and communicated with the air flow generator is formed between the first air-dust separation piece and the air flow generator.
In the dust collection device, the first air-dust separation member is arranged around the periphery of the air flow generator, and a first air-dust separation cavity is formed inside the first air-dust separation member. Therefore, the first air-dust separation cavity is arranged on the periphery of the air flow generator, and noise generated during the operation of the air flow generator can be absorbed through the first air-dust separation cavity, so that the noise of the dust collection device is reduced. And an exhaust passage which is positioned at the downstream of the airflow generator and communicated with the airflow generator is formed between the first air-dust separation piece and the airflow generator, and clean air flowing out of the first air-dust separation cavity enters the exhaust passage after passing through the airflow generator and is discharged to the outside from the exhaust passage. Meanwhile, an exhaust channel is formed between the air flow generator and the first air dust separating piece in a surrounding mode, the exhaust channel is located on the periphery of the air flow generator, noise generated when the air flow generator works can be further absorbed, noise of the dust collection device is further reduced, silence is improved, and a user can conveniently use the dust collector.
In one embodiment, the device further comprises a second gas-dust separation part with a second gas-dust separation cavity, wherein the second gas-dust separation part is provided with a gas inlet communicated with the second gas-dust separation cavity, and the second gas-dust separation cavity is positioned at the upstream of the first gas-dust separation cavity and is communicated with the first gas-dust separation cavity.
In one embodiment, an air inlet channel is formed between the housing and the first air-dust separation member, and the air inlet channel is communicated between the first air-dust separation chamber and the second air-dust separation chamber.
In one embodiment, the dust collector further comprises a dust collecting piece connected with the first air-dust separating piece, wherein the dust collecting piece is positioned in the gravity direction of the first air-dust separating piece and provided with a first dust collecting cavity communicated with the first air-dust separating cavity.
In one embodiment, the dust collecting member is sleeved in the second air-dust separating member;
The bottom end of the dust collecting piece far away from the first air dust separating piece is in an opening shape, and the bottom end of the dust collecting piece in an opening shape is abutted with the bottom wall of the second dust collecting separating piece.
In one embodiment, the dust collector further comprises a filter screen, wherein the filter screen is sleeved between the shell and the dust collecting piece at intervals and is positioned on an airflow path from the second air-dust separation cavity to the first air-dust separation cavity.
In one embodiment, the device further comprises a flow guiding piece with a flow guiding cavity, the flow guiding piece is in butt joint with the first air dust separating piece corresponding to the air outlet side of the air flow generator, and the flow guiding cavity is communicated between the air outlet of the air flow generator and the inlet of the exhaust channel.
In one embodiment, the flow guiding member comprises a body with the flow guiding cavity and a connecting plate arranged on the body, and the first air dust separating member is in butt joint with the connecting plate.
In one embodiment, the device further comprises a drainage piece, wherein the drainage piece is arranged in the shell;
The exhaust port of the first air-dust separation piece and the air suction port of the air flow generator are positioned at the same end in the shell, and the drainage piece is arranged on the air suction side of the air flow generator and is provided with a drainage channel which is communicated with the exhaust port of the first air-dust separation piece and the air suction port of the air flow generator.
In one embodiment, a drainage cavity communicated with the outlet of the exhaust channel is formed between the drainage piece and the shell in a surrounding mode, and an exhaust hole communicated with the drainage cavity is formed in the shell.
In one embodiment, the housing includes a top wall and a side wall surrounding the periphery of the top wall, the drainage piece is disposed in the housing opposite to the top wall, and encloses with the top wall and the side wall to form the drainage cavity, and the side wall encloses to form the drainage cavity, and the exhaust hole is formed on a part of the drainage cavity.
A dust collection device comprises the dust collection device.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, in an embodiment of the present invention, a dust collection device 100 is provided, which includes a housing 10, a power source 16, and an airflow generator 30 and a first dust separating member 50 all disposed in the housing 10.
The power supply 16 is used to supply power to the airflow generator 30. The airflow generator 30 provides an airflow suction force that draws an external airflow into the cleaner, and the first dust separating member 50 has a first dust separating chamber 52 upstream of the airflow generator 30. The air flow suction generated during the operation of the air flow generator 30 drives the external air flow to enter the first air-dust separation cavity 52 for air-dust separation, and clean air after dust separation flows out of the first air-dust separation cavity 52 and is discharged to the outside through the air flow generator 30, so that dust collection is completed.
As shown in fig. 2 and 7, in some embodiments, the first air-dust separating member 50 is disposed around the periphery of the air flow generator 30, and a first air-dust separating chamber 52 is formed inside the first air-dust separating member 50. In this way, the first air-dust separating chamber 52 surrounds the periphery of the air flow generator 30, so that the noise generated when the air flow generator 30 works can be absorbed by the first air-dust separating chamber 52, and the noise of the dust collection device 100 can be reduced. Also, an exhaust passage 60 is formed between the first dust separating member 50 and the airflow generator 30 downstream of the airflow generator 30 and in communication with the airflow generator 30, and clean air flowing out of the first dust separating chamber 52 passes through the airflow generator 30 and then enters the exhaust passage 60, and is discharged from the exhaust passage 60 to the outside. Meanwhile, the exhaust channel 60 is formed between the airflow generator 30 and the first air dust separating member 50, which is equivalent to the exhaust channel 60 being located at the periphery of the airflow generator 30, so that the noise generated during the operation of the airflow generator 30 can be further absorbed, the noise of the dust collection device 100 can be further reduced, the silence can be improved, and the user can use the dust collector conveniently.
As shown in fig. 4 to 5, in particular, the first dust separating member 50 includes a plurality of first sub-dust separating members 51, and the first dust separating chamber 52 includes a plurality of first sub-dust separating chambers 521 formed in each of the first sub-dust separating members 51. The plurality of first sub-gas-dust separation members 51 are connected in an annular arrangement around the outer circumference of the gas flow generator 30, and the first sub-gas-dust separation chamber 521 in each of the first sub-gas-dust separation members 51 performs gas-dust separation on the inflow gas flow, and the gas-dust separation is efficiently performed by the plurality of first sub-gas-dust separation chambers 521. Meanwhile, noise generated from the airflow generator 30 is absorbed by the plurality of first sub-dust separating chambers 521 around the outer circumference of the airflow generator 30.
Optionally, each first sub-air-dust separating member 51 is a cyclone separator, when the air flow with dust and dirt enters the cyclone separator and then rotates downwards in a spiral manner, the dust and dirt can obtain larger centrifugal force due to larger mass in the rotation process, finally, the dust and dirt fall into the dust collecting cavity under the action of self gravity after impacting the inner wall of the cyclone separator, and meanwhile, clean air is discharged from the cyclone separator, so that air-dust separation is realized.
As shown in fig. 2-3, in some embodiments, the dust collecting device 100 further includes a second air-dust separating member 40 having a second air-dust separating chamber 41, an air inlet 43 is formed on the second air-dust separating member 40 and is in communication with the second air-dust separating chamber 41, and the second air-dust separating chamber 41 is located upstream of the first air-dust separating chamber 52 and is in communication with the first air-dust separating chamber 52. That is, the second air-dust separating member 40 is further disposed before the first air-dust separating member 50, and the air suction generated by the air flow generator 30 drives the air flow to enter the second air-dust separating member 40 through the air inlet 43 for primary air-dust separation, then enter the first air-dust separating member 50 for secondary air-dust separation, so that the secondary air-dust separation is realized, the air-dust separation rate is higher, and the separation effect is better.
Further, an air intake passage 12 is formed between the housing 10 and the first air-dust separating member 50, the air intake passage 12 is communicated between the first air-dust separating chamber 52 and the second air-dust separating chamber 41, and the air flow in the second air-dust separating chamber 41 enters the first air-dust separating chamber 52 through the air intake passage 12. In addition, the first air-dust separating member 50 is disposed around the periphery of the air flow generator 30, and the air inlet channel 12 between the first air-dust separating member 50 and the housing 10 also surrounds the first air-dust separating member 50, and is further disposed around the periphery of the air flow generator 30, so that the noise generated by the air flow generator 30 can be absorbed through the air inlet channel 12.
Specifically, the outer periphery of the airflow generator 30 is sequentially provided with an exhaust channel 60 located between the airflow generator 30 and the first air-dust separating member 50, a first air-dust separating cavity 52 located in the first air-dust separating member 50, and an air inlet channel 12 located between the first air-dust separating member 50 and the casing 10, that is, the exhaust channel 60, the first air-dust separating cavity 52 and the air inlet channel 12 are sequentially arranged on the outer periphery of the airflow generator 30 from inside to outside, so that the multi-layer absorption is performed on the noise generated by the airflow generator 30, the noise transmitted during the operation of the dust suction device 100 is effectively reduced, and the use experience of a user is improved.
In some embodiments, the dust collection device 100 further includes a drainage member 70, and the drainage member 70 is disposed in the housing 10. The exhaust port of the first air-dust separating member 50 is located at the same end as the air inlet of the air-flow generator 30 in the housing 10, and the flow guiding member 70 is provided on the air-suction side of the air-flow generator 30 and has a flow guiding passage 72 communicating the exhaust port of the first air-dust separating member 50 with the air inlet of the air-flow generator 30, and clean air discharged from the first air-dust separating member 50 flows to the air-flow generator 30 through the flow guiding passage 72. Meanwhile, the exhaust port of the first air-dust separating element 50 is located at the air suction side of the air flow generator 30, and the drainage channel 72 is only required to be arranged at the air suction end of the air flow generator 30, so that the exhaust port of the first air-dust separating element can be communicated with the air suction port of the air flow generator 30, the drainage channel 72 is shorter, the flowing resistance of air flow is smaller, the flow speed of the air flow is accelerated, and the air suction flow is improved.
Specifically, the airflow generator 30 includes a motor and a fan blade connected to an output end of the motor, and the motor drives the fan blade to rotate when working, so as to form an airflow suction force for driving the airflow into the dust collection device 100. The end of the airflow generator 30 with the fan blade is the air suction end, and the end of the airflow generator 30 with the fan blade is arranged on the same side as the air discharge end of the first air-dust separating member 50, so that the air suction end of the airflow generator 30 and the air discharge end of the first air-dust separating member 50 are arranged on the same side, and the resistance of the airflow flowing between the first air-dust separating member 50 and the airflow generator 30 is reduced.
More specifically, the dust collection device 100 further includes a pre-filter 32, where the pre-filter 32 is sleeved on the aspirator end of the airflow generator 30, that is, the pre-filter 32 is sleeved on the end of the airflow generator 30 with the fan blade, and the pre-filter 32 is communicated with the drainage channel 72 to filter the airflow flowing from the drainage channel 72 into the airflow generator 30, so as to prevent dust from accumulating inside the airflow generator 30. The housing 10 is provided with a mounting opening 15 corresponding to the suction end of the airflow generator 30, and the prefilter 32 is detachably mounted in the mounting opening 15, so that the prefilter 32 can be easily removed from the mounting opening 15 of the housing 10 when the prefilter 32 needs to be cleaned.
Further, a drainage cavity 74 communicated with the outlet of the exhaust channel 60 is formed between the drainage piece 70 and the shell 10, and the shell 10 is provided with an exhaust hole 14 communicated with the drainage cavity 74. After the flow guide 70 is arranged on the suction side of the airflow generator 30, a flow guide cavity 74 communicated with the outlet of the exhaust channel 60 is also formed between the outer wall of the flow guide 70 and the inner wall of the shell 10, and clean air in the exhaust channel 60 is discharged to the outside through the exhaust hole 14 by the flow guide cavity 74. In this way, the drainage member 70 not only forms the drainage channel 72 in itself, but also defines the drainage cavity 74 between the drainage member 70 and the housing 10, thereby realizing multiple functions.
As shown in fig. 4 to 6, specifically, the first dust separating member 50 is provided with a first via hole 53, the first via hole 53 is communicated with an outlet of the exhaust channel 60, the drainage member 70 is provided with a second via hole 73 corresponding to the first via hole 53, the second via hole 73 is communicated with the drainage cavity 74, and air flow enters the drainage cavity 74 from the exhaust channel 60 after passing through the first via hole 53 and the second via hole 73, and finally is discharged from the exhaust hole 14.
As shown in fig. 3, the housing 10 further includes a top wall 11 and a side wall 13 surrounding the periphery of the top wall 11, the drainage member 70 is disposed in the housing 10 opposite to the top wall 11 and forms a drainage cavity 74 with the top wall 11 and the side wall 13, the portion of the side wall 13 surrounding the drainage cavity 74 is provided with a vent hole 14, such that the vent hole 14 is in communication with the drainage cavity 74, and the vent hole 14 is located in the upper half of the side wall 13 near the top wall 11. In this way, the air is discharged from the upper half of the side surface of the housing 10, and the discharged air flow does not blow to the cleaned surface after dust collection, and dust in the uncleaned part is not blown to the cleaned surface, thereby preventing the cleaning effect from being affected. And, also can not directly blow to operator's face by the direct exhaust in top of casing 10, protect the operator, convenience of customers uses, improves user experience degree.
As shown in fig. 2-3, in some embodiments, the dust collection device 100 further includes a flow guiding member 90 having a flow guiding cavity 92, where the flow guiding member 90 is abutted with the first dust separating member 50 corresponding to the air outlet side of the airflow generator 30, and the flow guiding cavity 92 is connected between the air outlet of the airflow generator 30 and the inlet of the exhaust passage 60. As is apparent from the foregoing description, the exhaust passage 60 is provided around the outer periphery of the airflow generator 30, so that the extending direction of the exhaust passage 60 is parallel to the airflow direction in the airflow generator 30, and in order to allow the airflow flowing vertically from the inside of the airflow generator 30 to enter the adjacent vertical exhaust passage 60, the flow guide 90 is provided on the air outlet side of the airflow generator 30, and the airflow discharged from the airflow generator 30 is guided by the flow guide 90 to enter the exhaust passage 60.
Specifically, the flow guiding member 90 includes a body 91 and a connection plate 93, the body 91 has a flow guiding cavity 92, the connection plate 93 is disposed on the body 91, and the first air dust separating member 50 is in butt joint with the connection plate 93. When the dust collecting apparatus 100 is assembled, the first air-dust separating member 50 may be coupled to the connection plate 93, and the body 91 connected to the connection plate 93 may be directed toward the air outlet end of the air flow generator 30 surrounded by the first air-dust separating member 50, and the air flow may be guided from the air outlet end of the air flow generator 30 into the adjacent air discharge passage 60.
In some embodiments, the dust collecting device 100 further includes a dust collecting member 80 connected to the first air-dust separating member 50, the dust collecting member 80 being located in the gravity direction of the first air-dust separating member 50 and having a first dust collecting chamber 81 communicating with the first air-dust separating chamber 52, and when the air flow with dust rotates at a high speed in the first air-dust separating chamber 52, the dust impacts on the inner wall of the first air-dust separating chamber 52 due to a large centrifugal force and falls into the first dust collecting chamber 81 under the self gravity, and the dust separated in the first air-dust separating chamber 52 is collected by the first dust collecting chamber 81.
Further, the dust collecting member 80 is sleeved in the second air-dust separating member 40, the bottom end of the dust collecting member 80 far away from the first air-dust separating member 50 is in an opening shape, and the bottom end of the dust collecting member 80 in the opening shape is abutted with the bottom wall of the second air-dust separating member 40. Thus, the dust collecting member 80 extends into the second dust separating chamber 41, and the dust collecting member 80 is accommodated through the second dust separating chamber 41. The bottom end of the dust collecting member 80 is open and contacts the bottom wall of the second air-dust separating chamber 41, and dust in the first dust collecting chamber 81 is supported by the bottom wall of the second air-dust separating member 40. Meanwhile, the dust separated after the high-speed rotation in the second dust-gas separation chamber 41 falls down on the bottom wall of the second dust-gas separation member 40 under the self-gravity. The dust separated by the first and second dust separating members 50 and 40 is eventually collected on the bottom wall of the second dust separating member 40. When the dust is poured, the dust in the dust collecting piece 80 and the dust in the second dust separating cavity 41 can be poured out by only opening the bottom wall of the second dust separating piece 40, or when the dust is poured, the second dust separating piece 40 is disassembled, and the dust which is gathered on the bottom wall of the second dust separating piece 40 is poured out through the opening of the second dust separating piece 40, which allows the dust collecting piece 80 to pass through, so that the dust separated by the first dust separating piece 50 and the second dust separating piece 40 can be cleaned at one time.
Alternatively, the dust collecting member 80 includes a dust collecting section 82 and a transition section 84 connected between the dust collecting section 82 and the first air-dust separating member 50, the transition section 84 being inclined in a radial direction from the outside to the inside thereof toward the vicinity of the dust collecting section 82, such that the transition section 84 is inclined downward toward the vicinity of the center of the dust collecting section 82, guiding dust to collect in the dust collecting section 82. At the same time, clean air separated in the second air-dust separation chamber 41 can be smoothly introduced into the intake passage 12 through the inclined transition section 84. In addition, the diameter of the transition section 84 gradually decreases in the direction in which the first air-dust separating member 50 is directed toward the dust collecting section 82, and the dust collecting section 82 connected to the transition section 84 is provided with the smallest diameter of the transition section 84, has a smaller diameter, occupies a smaller space of the second air-dust separating chamber 41, and does not affect the air-dust separating operation in the second air-dust separating chamber 41.
In some embodiments, the dust collection device 100 further includes a filter screen 20, where the filter screen 20 is sleeved between the housing 10 and the dust collecting member 80 at a distance, and is located on an airflow path from the second air-dust separation chamber 41 to the first air-dust separation chamber 52, so as to filter the airflow flowing from the second air-dust separation chamber 41 to the first air-dust separation chamber 52, and prevent larger particles of dust from entering the first air-dust separation chamber 52, thereby further improving the air-dust separation rate.
Referring to fig. 2 and 3, the airflow path of the dust suction device 100 is that the airflow with dust enters the second air-dust separation chamber 41 through the air inlet 43, is primarily air-dust separated in the second air-dust separation chamber 41, then enters the air inlet channel 12 after passing through the filter screen 20, enters the first air-dust separation chamber 52 through the air inlet channel 12, is secondarily air-dust separated in the first air-dust separation chamber 52, and the clean airflow with dust separated flows from the first air-dust separation chamber 52 to the drainage channel 72, flows to the airflow generator 30, enters the air guide chamber 92 from the air outlet end of the airflow generator 30, then enters the air exhaust channel 60, finally enters the drainage chamber 74 communicated with the air exhaust channel 60, and flows to the outside from the air exhaust hole 14 on the side wall 13 of the housing 10, thus completing the dust suction. When the dust collection device 100 works, the airflow is continuously driven to flow along the path, so that the dust collection work is completed.
Based on the same inventive concept, in an embodiment of the present invention, a dust collection apparatus is further provided, including the dust collection device 100, so that noise is low during operation.
In some embodiments, the dust collection device further comprises a pipe member and a cleaning member, wherein one end of the pipe member is provided with the cleaning member, and the other end of the pipe member is sleeved at the air inlet 43. When the dust collection device works, the cleaning piece is contacted with the surface to be cleaned, and dust on the surface to be cleaned is carried up, so that the dust and the air flow from the pipe body piece to the air inlet 43 together for dust collection. Alternatively, the suction device is a hand-held cleaner.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.