WO2016058434A1 - 风道结构及具有其的表面清洁装置 - Google Patents

风道结构及具有其的表面清洁装置 Download PDF

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Publication number
WO2016058434A1
WO2016058434A1 PCT/CN2015/085299 CN2015085299W WO2016058434A1 WO 2016058434 A1 WO2016058434 A1 WO 2016058434A1 CN 2015085299 W CN2015085299 W CN 2015085299W WO 2016058434 A1 WO2016058434 A1 WO 2016058434A1
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WO
WIPO (PCT)
Prior art keywords
cover body
air
inner cover
duct
chamber
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Application number
PCT/CN2015/085299
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English (en)
French (fr)
Inventor
刘胜辉
Original Assignee
江苏美的清洁电器股份有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201420589928.3U external-priority patent/CN204192510U/zh
Priority claimed from CN201410538600.3A external-priority patent/CN105559688B/zh
Application filed by 江苏美的清洁电器股份有限公司, 美的集团股份有限公司 filed Critical 江苏美的清洁电器股份有限公司
Priority to EP15851574.2A priority Critical patent/EP3207845B1/en
Publication of WO2016058434A1 publication Critical patent/WO2016058434A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the present invention relates to the field of household appliances, and in particular to a wind tunnel structure and a surface cleaning device therewith.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the present invention is required to provide a duct structure for a surface cleaning apparatus which has the advantages of simple structure and low noise.
  • a duct structure for a surface cleaning apparatus includes: a motor accommodating chamber provided with a accommodating chamber air inlet portion and a accommodating chamber air outlet portion, respectively;
  • the inner cover body is disposed in the motor accommodation chamber and is provided with an inner cover body air inlet portion and an inner cover body air outlet portion, wherein the accommodation chamber air inlet portion and the inner cover body air inlet portion pass through the inlet air
  • the motor is received in the inner casing body, wherein the motor housing chamber is provided with a partition member, and the partition member is disposed between the inner casing body and the accommodating chamber air outlet portion to
  • the motor accommodating chamber is partitioned into a first air duct chamber and a second air duct chamber, the inner hood body being housed in the first air duct chamber, the first air duct chamber and the second air duct chamber being The outer walls of the inlet duct are in communication with each other.
  • a motor housing chamber is partitioned into a first duct chamber and a second duct chamber by a partition, thereby prolonging a flow path of the airflow in the duct structure , reducing the flow velocity of the airflow in the first air duct cavity.
  • it is necessary to bypass the outer side wall of the inner cover body to enter the second air passage cavity, thereby further prolonging the flow path of the airflow in the air passage structure and reducing the airflow flow speed, thereby further Reduced wind noise.
  • the inner casing body air outlet portion is formed by a plurality of silencing holes.
  • the inner hood body air outlet portion is formed on a side of the inner hood body that is adjacent to the accommodating chamber air outlet portion.
  • the partitions are respectively connected to an outer side wall of the air inlet duct and an inner wall of the motor housing chamber adjacent to the air outlet portion of the housing chamber, and the inner portion is The cover is spaced apart from the outlet portion of the receiving chamber.
  • the inner cover body in the first duct cavity, is disposed such that a bottom surface of the inner cover body and an inner wall of the first air duct cavity opposite to the bottom surface The distance between them is the smallest.
  • the inner cover body is in a gas flow direction from the bottom surface of the inner cover body toward a side of the inner cover body opposite to the inner cover body air outlet portion.
  • the distance from the inner wall of the first duct cavity gradually increases.
  • the inner cover body and the inner wall of the first air passage cavity are in a gas flow direction of the inner cover body air outlet portion toward the bottom surface of the inner cover body The distance between them gradually decreases.
  • the section of the second duct cavity that is perpendicular to the flow direction of the airflow gradually increases in a direction toward the outlet portion of the accommodation chamber.
  • the air duct structure further includes: a Haipa assembly disposed at the plenum portion of the accommodating chamber and located within the second duct cavity.
  • the air duct structure includes: an outer cover body on which the accommodation chamber air inlet portion is formed, wherein a portion of the outer cover body forms with the partition member and the surface cleaning device The first duct cavity; and another portion of the outer casing opposite the portion of the outer casing and the partition forming the second duct cavity.
  • a lower edge of the portion of the outer cover is disposed in a first receiving groove formed on a body of the surface cleaning device; and a lower edge of the spacer is disposed at the In the second receiving groove formed on the main body, the second receiving groove and the first receiving groove are respectively located on opposite sides of the inner cover body.
  • a surface cleaning apparatus includes: a dust cup; a cyclone separator, the cyclone separator is housed in the dust cup, and whirls air entering from a bottom of the dust cup Dust removal; the air passage structure as described above, wherein the air outlet of the dust cup is in communication with the air inlet portion of the inner cover body.
  • the motor housing chamber is partitioned into the first duct chamber and the second duct chamber by the partition member, thereby prolonging the flow path of the airflow in the duct structure, reducing the airflow in the first The flow velocity in a duct cavity.
  • it is necessary to bypass the outer side wall of the inner cover body to enter the second air passage cavity, thereby further prolonging the flow path of the airflow in the air passage structure and reducing the airflow flow speed, thereby further Reduced wind noise.
  • FIG. 1 is a schematic structural view of a surface cleaning apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a duct structure for a surface cleaning apparatus according to an embodiment of the present invention
  • Figure 3 is an enlarged schematic view of a portion A in Figure 1;
  • Figure 4 is an enlarged schematic view of a portion B in Figure 1;
  • Figure 5 is an enlarged schematic view of the portion C in Figure 1.
  • a motor accommodating chamber 110 a accommodating chamber air inlet portion 111, and a accommodating chamber air outlet portion 112,
  • Inner cover body 120 inner cover body air inlet portion 121, inner cover body air outlet portion 122, bottom surface 123,
  • Second air duct cavity 142 Second air duct cavity 142
  • a dust cup 320 a dust cup 320, an air inlet 321, an air outlet 322,
  • Cyclone separator 330 Cyclone separator 330, steady flow chamber 340.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of “plurality” is at least two, For example, two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • a duct structure for the surface cleaning apparatus 300 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
  • a duct structure for a surface cleaning apparatus 300 includes a motor housing chamber 110, an inner casing 120, and a motor 130.
  • the motor housing chamber 110 is provided with a housing chamber air inlet portion 111 and a housing chamber air outlet portion 112, respectively.
  • the motor 130 is housed in the inner cover 120, and the inner cover 120 is disposed in the motor housing chamber 110 and is provided with an inner cover air inlet portion 121 and an inner cover body air outlet portion 122, wherein the accommodation chamber air inlet portion 111 and the inner cover portion are provided.
  • the body air inlet portion 121 communicates through the air inlet duct 124. As shown in FIG. 2, the airflow enters the intake air duct 124 from the accommodating chamber air inlet portion 111 in the direction of the arrow a, and the inner hood air inlet portion 121 that communicates with the intake air duct 124 enters the inner casing 120.
  • the inner cover body 120 flows out from the inner cover air outlet portion 122 along the arrow a1.
  • the inlet duct 124 may be disposed at the top of the inner casing 120, and the inner casing outlet portion 122 may be disposed at a position close to the bottom of the inner casing 120, thereby extending the airflow.
  • the length of the circulation path makes the turbulent airflow smooth, which reduces the wind noise.
  • a partitioning member 140 is disposed in the motor accommodating chamber 110, and the partitioning member 140 is disposed between the inner casing body 120 and the accommodating chamber air outlet portion 112 to partition the motor accommodating chamber 110 into the first air duct chamber 141 and the second air duct chamber 142.
  • the inner casing 120 is housed in the first duct cavity 141, and the first duct cavity 141 and the second duct cavity 142 are in communication with each other at the outer wall of the inlet duct 124.
  • the inner casing air outlet portion 122 is in communication with the first air duct cavity 141, and the communication position of the first air duct cavity 141 and the second air duct cavity 142 is disposed at a position adjacent to the outer wall of the intake air duct 124, and second.
  • the duct cavity 142 is in communication with the accommodating chamber air outlet portion 112. Therefore, in the process of flowing, the airflow needs to bypass the outer sidewall of the inner casing 120 to enter the second air duct cavity 142, thereby prolonging the flow path of the airflow, reducing the flow velocity, and changing the disordered airflow. It is more stable, which reduces the wind noise of the air duct structure.
  • the airflow after flowing out of the inner casing 120 in the direction of the arrow a1, the airflow enters the first duct cavity 141 in the direction of a2, and the airflow flows along the first duct cavity 141. And entering the second duct cavity 142 in the direction of the arrow a6, and finally flowing out of the accommodating chamber air outlet portion 112 in the direction of the arrow a7.
  • the motor accommodation chamber 110 is partitioned into the first air passage chamber 141 and the second air passage chamber 142 by the partition member 140, thereby extending the air flow in the air passage.
  • the flow path within the structure reduces the flow velocity of the gas stream within the first duct cavity 141.
  • the airflow needs to be bypassed during the flow process.
  • the outer side wall of the inner cover body 120 can enter the second air duct cavity 142, thereby further prolonging the flow path of the air flow in the air passage structure, reducing the air flow speed, thereby reducing the wind noise.
  • the partition members 140 are respectively connected to the outer side wall of the intake air duct 124 and the inner wall of the motor accommodation chamber 110 adjacent to the accommodation chamber air outlet portion 112, and the inner cover body 120 is
  • the accommodating chamber outlet portions 112 are spaced apart.
  • the upwardly facing side of the partitioning plate, the partial top portion of the motor housing chamber 110, and the side wall between the partitioning plate and the top of the motor housing chamber 110 are collectively configured as a second. Air duct cavity 142.
  • the first air duct cavity 141 and the accommodating chamber air outlet portion 112 are communicated through the second air duct cavity 142, that is, the airflow flows out of the first air duct cavity 141, passes through the first air duct cavity 141, and then flows out of the accommodating chamber.
  • the portion 112 is discharged.
  • the inner cover body air outlet portion 122 is formed on the side surface of the inner cover body 120 close to the accommodation chamber air outlet portion 112.
  • the airflow flows out of the inner casing air outlet portion 122 in the direction of the arrow a1, enters the first air duct cavity 141, and flows around the lower portion of the inner casing body 120 in the direction of the arrow a2, and then from the motor housing chamber 110.
  • the inner side away from the accommodating chamber air outlet portion 112 flows upward (in the direction indicated by an arrow a4 in FIG. 2), then enters the second duct chamber 142 in the direction indicated by the arrow a6, and finally exits from the accommodating chamber.
  • the portion 112 is discharged.
  • the inner cover body air outlet portion 122 is disposed on the side surface of the inner cover body 120 close to the accommodation chamber air outlet portion 112, so that the flow path of the airflow in the first air passage cavity 141 can be prolonged, and the flow velocity of the airflow can be reduced. , thereby reducing the wind noise of the air duct structure.
  • the motor 130 is vertically disposed within the first duct cavity 141, whereby the flow path of the airflow within the first duct cavity 141 can be extended.
  • the inner shroud air outlet portion 122 is formed by a plurality of silencing holes.
  • the sound absorbing hole can be a hole having a smaller diameter, whereby the air blowing noise of the air outlet portion 122 of the inner cover body can be reduced by the principle of the sound absorbing of the small hole.
  • the outer side wall of the inner cover body 120 on which the inner cover air outlet portion 122 is formed, and the inner wall of the motor accommodation chamber 110 opposite to the outer side wall at the position collectively define the first portion of the first air passage cavity 141.
  • the flow direction of the airflow in the first section 1411 is as indicated by arrow a2 in FIG. In the example shown in FIG.
  • the space of the first section 1411 of the first duct cavity 141 is larger than that of the inner casing body outlet portion 122, and the airflow enters through the inner casing outlet portion 122.
  • noise due to turbulence may be attenuated during entering into the first duct cavity 141. .
  • the distance between the inner cover body 120 and the inner wall of the first air passage cavity 141 is gradually reduced in the gas flow direction of the inner cover body air outlet portion 122 toward the bottom surface 123 of the inner cover body 120. small.
  • the first section 1411 of the first duct cavity 141 is gradually narrowed in the direction indicated by the arrow a2 in FIG. That is, the cross-sectional area perpendicular to the direction indicated by the arrow a2 gradually decreases along the flow direction of the airflow in the second section 1412.
  • the inner cover body 120 in the first duct cavity 141, is disposed such that the inner cover body 120 The distance between the bottom surface 123 and the inner wall of the first duct cavity 141 opposite to the bottom surface 123 is the smallest, and the air flow flows in the direction indicated by the arrow a3 in the second section 1412 of the first duct cavity 141.
  • the bottom surface 123 of the inner cover body 120 and the inner wall of the first air duct cavity 141 opposite to the bottom surface 123 define a second section 1412 of the first air duct cavity 141, and the second section 1412 is in communication with the first section 1411.
  • the cross-sectional area of the second section 1412 is the smallest in a section perpendicular to the direction in which the airflow flows.
  • the cross-sectional area of the first section 1411 is greater than the cross-sectional area of the second section 1412 in a section perpendicular to the direction in which the airflow flows, and the airflow enters the second section from the first section 1411.
  • the air flow passage is narrowed from the width, whereby the noise generated by the turbulence can be further reduced.
  • the inner cover body 120 and the inner wall of the first air passage cavity 141 are The distance between them gradually increases. That is, the side of the inner cover body 120 opposite to the inner cover air outlet portion 122 and the inner wall of the first air duct cavity 141 define a third segment 1413 of the first air passage cavity 141, the third segment 1413 and the The two segments 1412 are in communication. In the third segment 1413, the airflow flows in a direction as indicated by an arrow a4 in FIG.
  • the inner cover body 120 is adjacent to the top wall of the inner cover body 120 at a position opposite to the accommodation chamber outlet portion 112 and the inner wall of the first duct cavity 141 defines a fourth segment 1414.
  • the fourth segment 1414 is in communication with the third segment 1413, and the airflow flows in the direction indicated by the arrow a5 in the fourth segment 1414, and the fourth segment 1414 is gradually narrowed in the direction indicated by the arrow a5. That is, the cross-sectional area in the direction perpendicular to the arrow a5 gradually becomes smaller in the direction indicated by the arrow a5. Thereby, the airflow can be noise-reduced again, thereby further reducing the wind noise of the air duct structure.
  • the cross section of the second duct cavity 142 perpendicular to the flow direction of the airflow gradually increases in a direction toward the accommodating chamber air outlet portion 112. Therefore, during the flow of the airflow, the flow space of the airflow is gradually enlarged, which can effectively reduce the flow velocity of the airflow, thereby reducing the wind noise of the air passage structure.
  • the air duct structure further includes a Haipa assembly 150.
  • the Haipa assembly 150 is disposed at the accommodating chamber outlet portion 112 and within the second duct 142. It can be understood that the Haipa assembly 150 has the function of filtering dust and eliminating noise.
  • the arrangement of the Haipa assembly 150 at the outlet portion 112 of the storage chamber can further eliminate the noise of the air passage structure, improve the mute effect of the product and the dust removal effect.
  • the air duct structure further includes: a housing body 160.
  • the housing body 160 is formed with a housing chamber air inlet portion 111, wherein a portion of the housing body 160 forms a first air duct cavity 141 with the partition member 140 and the surface cleaning device 300; and an outer cover body 160 opposite to a portion of the outer cover body 160 A portion forms a second duct cavity 142 with the divider 140.
  • the air passage structure can be further simplified, and the structure of the air passage structure can be made more compact and reasonable.
  • the top of the inner cover body 120 is provided with a tubular body 125 facing upward, and the lower end of the tubular body 125 communicates with the inside of the inner cover body 120 and is formed as an inner cover air inlet portion 121, which is tubular.
  • the inlet duct 124 is formed inside the body 125.
  • a connecting member 170 is sleeved on the outer peripheral wall of the tubular body 125.
  • the lower end of the connecting member 170 is coupled to the outer side wall of the top of the inner cover 120, and the upper end of the connecting member 170 communicates with the inlet air duct 124 to form the accommodating chamber air inlet portion 111.
  • a card slot 171 extending in the circumferential direction of the connecting member is formed on the side wall of the connecting member 170 near the upper end of the connecting member 170, and the outer cover 160 is engaged in the card slot 171.
  • One end of the partition plate is sleeved on the outer peripheral wall of the connecting member 170 and connected to the outer side wall of the top of the inner cover body 120.
  • the side of the partition plate facing the outer cover body 160 is opposite to the partition plate on the outer cover body 160.
  • Partially structured second air duct cavity 142 in order to improve the mute effect of the air duct structure, the second air duct cavity 142 defined by the partition plate and part of the outer cover body 160 is oriented toward the accommodation chamber at an interface perpendicular to the flow direction of the air flow. The direction of the wind portion 112 gradually increases.
  • the lower edge of a portion of the outer cover 160 is disposed in the first receiving groove 311 formed on the main body 310 of the surface cleaning device 300, and the lower edge of the spacer 140 is disposed.
  • the second receiving groove 312 formed on the main body 310 the second receiving groove 312 and the first receiving groove 311 are respectively located on opposite sides of the inner cover body 120.
  • the surface cleaning device 300 can be a horizontal vacuum cleaner or an upright vacuum cleaner.
  • the gas enters the intake duct 124 from the accommodating chamber air inlet portion 111 in the direction indicated by the arrow a, and enters the inner shroud 120 from the inner shroud air inlet portion 121.
  • the airflow in the inner cover 120 flows out of the inner cover air outlet portion 122 in the direction indicated by the arrow a1, and enters the first segment 1411 of the first air passage cavity 141. Since the inner casing air outlet portion 122 is configured by a plurality of smaller diameter sound attenuating holes, the first section 1411 of the first air duct cavity 141 is a cavity having a large space, and when the airflow enters the inner casing air outlet portion 122 When the first section 1411 of the first duct cavity 141 is suddenly enlarged due to the airflow flow space, noise due to turbulence can be attenuated during entering into the first duct cavity 141.
  • the airflow in the first segment 1411 enters the second segment 1412 in the direction indicated by the arrow a3.
  • the airflow in the second segment 1412 has a narrower space, and the airflow is During the process of entering the second segment 1412 from the first segment 1411, a process in which the flow space is narrowed from wide is experienced, whereby noise in the air passage structure can be further attenuated.
  • the airflow in the second section 1412 enters the third section 1413 in the direction indicated by the arrow a4.
  • the airflow in the third section 1413 is relatively wide, and the airflow is The second paragraph 1412 enters During the third segment 1413, the narrowing of the flow space is again experienced, whereby the airflow flow space is again amplified, and the noise due to turbulence can be attenuated again during the process of entering the third segment 1413.
  • the airflow in the third segment 1413 enters the fourth segment 1414 in the direction indicated by the arrow a5.
  • the airflow in the fourth segment 1414 is narrower, and the airflow is
  • the third segment 1413 enters the fourth segment 1414 and again experiences a process in which the flow space is narrowed from wide, whereby the wind noise within the air duct structure can be once again reduced.
  • the airflow in the fourth section enters into the second duct cavity 142 along the line of defense indicated by the arrow a6, and flows in the direction indicated by the arrow a7.
  • the second duct cavity 142 The section perpendicular to the flow direction of the airflow gradually increases in a direction toward the accommodating chamber air outlet portion 112. Thereby, the flow velocity of the airflow can be effectively reduced, thereby reducing the wind noise of the air passage structure.
  • the gas completes a flow process in the air duct structure, and the inner cover body, the partition plate and the outer cover body define the air passage structure to a wide and narrow gas circulation passage, and the flow of the gas due to the wide and narrow change of the air passage structure During the process, the noise generated by the turbulent flow is gradually filtered and weakened, thereby achieving the mute effect of the air passage structure, thereby improving the mute effect of the whole machine.
  • a surface cleaning apparatus 300 includes a dust cup 320, a cyclone 330, and a duct assembly as described above.
  • the cyclone separator 330 is housed in the dust cup 320, and whirls and removes air entering from the bottom of the dust cup 320, and the air outlet 322 of the dust cup 320 communicates with the inner cover air inlet portion 121.
  • the dust cup 320 is formed with an air inlet 321 , and the gas enters the dust cup 320 from the air inlet, and then is removed by the cyclone 330.
  • the dust-removed gas passes through the air outlet 322 of the dust cup 320. It flows out and enters the air duct structure by the inner casing air inlet portion 121.
  • the motor housing chamber 110 is partitioned into the first duct chamber 141 and the second duct chamber 142 by the partition member 140, thereby prolonging the flow path of the airflow in the duct structure.
  • the flow velocity of the airflow within the first duct cavity 141 is reduced.
  • the airflow needs to bypass the outer sidewall of the inner casing 120 to enter the second air duct cavity 142, thereby further prolonging the flow path of the airflow in the air duct structure and reducing the airflow speed. , which reduces the wind noise.
  • a flow stabilizing chamber 340 is formed between the air outlet 322 of the dust cup 320 and the inner casing air inlet portion 121.
  • the gas flowing out of the dust cup 320 can be made gentler, and the flow velocity of the airflow entering the air passage structure can be reduced, which is advantageous for further reducing the wind noise entering the air passage structure.
  • the cross section of the steady flow chamber 340 in the direction perpendicular to the flow of the airflow gradually increases from the air outlet 322 of the dust cup 320 toward the inner cover air inlet portion 121. Thereby, it is advantageous to reduce the noise entering the duct assembly.
  • the gas enters the dust cup 320 from the air inlet, and is then dusted by the cyclone 330.
  • the dust-removed gas flows out from the air outlet 322 of the dust cup 320, and the air inlet portion of the inner cover body 121 enters the steady flow chamber 340.
  • the gas enters the intake duct 124 from the accommodating chamber air inlet portion 111 in the direction indicated by the arrow a, and enters the inner shroud 120 from the inner shroud air inlet portion 121.
  • the airflow in the inner cover 120 flows out of the inner cover air outlet portion 122 in the direction indicated by the arrow a1, and enters the first segment 1411 of the first air passage cavity 141. Since the inner casing air outlet portion 122 is configured by a plurality of smaller diameter sound attenuating holes, the first section 1411 of the first air duct cavity 141 is a cavity having a large space, and when the airflow enters the inner casing air outlet portion 122 When the first section 1411 of the first duct cavity 141 is suddenly enlarged due to the airflow flow space, noise due to turbulence can be attenuated during entering into the first duct cavity 141.
  • the airflow in the first segment 1411 enters the second segment 1412 in the direction indicated by the arrow a3.
  • the airflow in the second segment 1412 has a narrower space, and the airflow is During the process of entering the second segment 1412 from the first segment 1411, a process in which the flow space is narrowed from wide is experienced, whereby noise in the air passage structure can be further attenuated.
  • the airflow in the second section 1412 enters the third section 1413 in the direction indicated by the arrow a4.
  • the airflow in the third section 1413 is relatively wide, and the airflow is
  • the second segment 1412 enters the third segment 1413 and again experiences a narrowing of the flow space, whereby the airflow flow space is again amplified, and the noise generated by the turbulence can enter the third segment 1413.
  • the process is weakened again.
  • the airflow in the third segment 1413 enters the fourth segment 1414 in the direction indicated by the arrow a5.
  • the airflow in the fourth segment 1414 is narrower, and the airflow is
  • the third segment 1413 enters the fourth segment 1414 and again experiences a process in which the flow space is narrowed from wide to wide, whereby the wind noise of the air passage structure can be once again reduced.
  • the airflow in the fourth section enters into the second duct cavity 142 along the line of defense indicated by the arrow a6, and flows in the direction indicated by the arrow a7.
  • the second duct cavity 142 The section perpendicular to the flow direction of the airflow gradually increases in a direction toward the accommodating chamber air outlet portion 112. Thereby, the flow velocity of the airflow can be effectively reduced, thereby reducing the wind noise of the air passage structure.
  • the gas completes a flow process in the air duct structure, and the inner cover body, the partition plate and the outer cover body define the air passage structure to a wide and narrow gas circulation passage, and the flow of the gas due to the wide and narrow change of the air passage structure During the process, the noise generated by the turbulent flow is gradually filtered and weakened, thereby achieving the mute effect of the air passage structure, thereby improving the mute effect of the whole machine.

Abstract

一种风道结构及具有其的表面清洁装置（300）。风道结构包括：电机容纳室（110）；内罩体（120），内罩体（120）设在电机容纳室（110）内且设有内罩体进风部（121）和内罩体出风部（122），容纳室进风部（111）和内罩体进风部（121）通过进风风道（124）连通；电机容纳室（110）内设有分隔件（140），分隔件（140）设在内罩体（120）和容纳室出风部（112）之间以将电机容纳室（110）分隔成第一风道腔（141）和第二风道腔（142），内罩体（110）容纳在第一风道腔（141）内，第一风道腔（141）与第二风道腔（142）在进风风道（124）的外壁处彼此连通。

Description

风道结构及具有其的表面清洁装置 技术领域
本发明涉及家用电器技术领域，具体而言，特别涉及一种风道结构及具有其的表面清洁装置。
背景技术
随着吸尘器行业的不断发展，人们对吸尘器的要求也越来越高，要求大吸力，低噪音，同时还要小巧轻便。特别是卧式尘杯机类，为使噪音更低，降噪结构会变得越来越复杂，从而导致整机尺寸也越来越大，进而影响了吸尘器的外观。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明需要提供一种用于表面清洁装置的风道结构，所述风道结构具有结构简单、噪音低的优点。
本发明的还需提供一种具有上述风道结构的表面清洁装置。
根据本发明的一个方面提供了一种用于表面清洁装置的风道结构，包括：电机容纳室，所述电机容纳室分别设有容纳室进风部和容纳室出风部；内罩体，所述内罩体设置在所述电机容纳室内且设有内罩体进风部和内罩体出风部，其中所述容纳室进风部和所述内罩体进风部通过进风风道相连通；电机，所述电机容纳在所述内罩体内，其中所述电机容纳室内设置有分隔件，所述分隔件设置在所述内罩体和容纳室出风部之间以将所述电机容纳室分隔成第一风道腔和第二风道腔，所述内罩体容纳在所述第一风道腔内，所述第一风道腔与所述第二风道腔在所述进风风道的外壁处彼此相连通。
根据本发明实施例的用于表面清洁装置的风道结构，利用分隔件将电机容纳室分隔成第一风道腔和第二风道腔，由此延长了气流在风道结构内的流动路径，降低了气流在第一风道腔内的流动速度。另外，气流在流动的过程中，需要绕过内罩体的外侧壁，才能进入到第二风道腔内，从而进一步延长了气流在风道结构内的流动路径，降低了气流流动速度，进而降低了出风噪音。
根据本发明的一些实施例，所述内罩体出风部由多个消音孔所形成。
根据本发明的一些实施例，所述内罩体出风部形成在所述内罩体的靠近所述容纳室出风部的侧面上。
根据本发明的一些实施例，所述分隔件分别连接至所述进风风道的外侧壁和与所述容纳室出风部相邻的所述电机容纳室的内壁上，并将所述内罩体与所述容纳室出风部分隔开。
根据本发明的一些实施例，在所述第一风道腔内，所述内罩体设置成使得所述内罩体的底面和与所述底面相对的所述第一风道腔的内壁之间的距离最小。
根据本发明的一些实施例，在从所述内罩体的所述底面朝向所述内罩体的与所述内罩体出风部相反的一侧的气体流动方向上，所述内罩体与所述第一风道腔的所述内壁之间的距离逐渐增大。
根据本发明的一些实施例，在所述内罩体出风部朝向所述内罩体的所述底面的气体流动方向上，所述内罩体与所述第一风道腔的所述内壁之间的距离逐渐减小。
根据本发明的一些实施例，所述第二风道腔的垂直于气流流动方向的截面在朝向所述容纳室出风部的方向上逐渐增大。
根据本发明的一些实施例，风道结构还包括：海帕组件，所述海帕组件设置在所述容纳室出风部处且位于所述第二风道腔内。
根据本发明的一些实施例，风道结构包括：外罩体，所述外罩体上形成有所述容纳室进风部，其中所述外罩体的一部分与所述分隔件和所述表面清洁装置形成所述第一风道腔；以及与所述外罩体的所述一部分相对的所述外罩体的另一部分与所述分隔件形成所述第二风道腔。
根据本发明的一些实施例，所述外罩体的所述一部分的下边沿设置在所述表面清洁装置的主体上所形成的第一容纳槽中；以及所述分隔件的下边沿设置在所述主体上所形成的第二容纳槽中，所述第二容纳槽和所述第一容纳槽分别位于所述内罩体的相对侧。
根据本发明的另一方面提供了一种表面清洁装置，包括：尘杯；旋风分离器，所述旋风分离器容纳在所述尘杯中，并对从所述尘杯底部进入的空气进行旋风除尘；如上所述的风道结构，其中所述尘杯的出风口与所述内罩体进风部相连通。
根据本发明实施例的表面清洁装置，利用分隔件将电机容纳室分隔成第一风道腔和第二风道腔，由此延长了气流在风道结构内的流动路径，降低了气流在第一风道腔内的流动速度。另外，气流在流动的过程中，需要绕过内罩体的外侧壁，才能进入到第二风道腔内，从而进一步延长了气流在风道结构内的流动路径，降低了气流流动速度，进而降低了出风噪音。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
图1是根据本发明的一个实施例的用于表面清洁装置的结构示意图；
图2是根据本发明的一个实施例的用于表面清洁装置的风道结构的结构示意图；
图3是图1中A处的放大示意图；
图4是图1中B处的放大示意图；
图5是图1中C处的放大示意图。
附图标记：
电机容纳室110，容纳室进风部111，容纳室出风部112，
内罩体120，内罩体进风部121，内罩体出风部122，底面123，
进风风道124，管状体125，
电机130，
分隔件140，
第一风道腔141，
第一段1411，第二段1412，第三段1413，第四段1414，
第二风道腔142，
海帕组件150，外罩体160，
连接部件170，卡槽171，
表面清洁装置300，
主体310，第一容纳槽311，第二容纳槽312，
尘杯320，进风口321，出风口322，
旋风分离器330，稳流室340。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是至少两个， 例如两个、三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面参照附图详细描述根据本发明实施例的用于表面清洁装置300的风道结构。
如图1-图5所示，根据本发明实施例的用于表面清洁装置300的风道结构，包括：电机容纳室110、内罩体120以及电机130。
具体而言，电机容纳室110分别设有容纳室进风部111和容纳室出风部112。电机130容纳在内罩体120内，内罩体120设置在电机容纳室110内且设有内罩体进风部121和内罩体出风部122，其中容纳室进风部111和内罩体进风部121通过进风风道124相连通。如图2所示，气流沿着箭头a的方向由容纳室进风部111进入到进风风道124，再由于进风风道124连通的内罩体进风部121进入到内罩体120内，内罩体120内的气流a经过电机130后，沿着箭头a1的由内罩体出风部122流出内罩体120。在本发明的一个实施例中，进风风道124可以设置在内罩体120的顶部，内罩体出风部122可以设置在靠近内罩体120的底部的位置处，由此可以延长气流流通路径的长度，使紊乱的气流变得平稳，进而降低了出风噪音。
电机容纳室110内设置有分隔件140，分隔件140设置在内罩体120和容纳室出风部112之间以将电机容纳室110分隔成第一风道腔141和第二风道腔142，内罩体120容纳在第一风道腔141内，第一风道腔141与第二风道腔142在进风风道124的外壁处彼此相连通。换言之，内罩体出风部122与第一风道腔141连通，第一风道腔141与第二风道腔142的连通位置设置在邻近进风风道124的外壁的位置处，第二风道腔142与容纳室出风部112连通。由此，气流在流动的过程中，需要绕过内罩体120的外侧壁，才能进入到第二风道腔142内，从而延长了气流的流动路径，降低了流动速度，使紊乱的气流变得更加平稳，进而降低了风道结构的出风噪音。
例如，在如图2所示的示例中，气流沿着箭头a1的方向流出内罩体120后，沿着a2的方向进入到第一风道腔141，气流沿着第一风道腔141流动，并沿着箭头a6的方向进入到第二风道腔142，最后按照箭头a7的方向由容纳室出风部112流出。
根据本发明实施例的用于表面清洁装置300的风道结构，利用分隔件140将电机容纳室110分隔成第一风道腔141和第二风道腔142，由此延长了气流在风道结构内的流动路径，降低了气流在第一风道腔141内的流动速度。另外，气流在流动的过程中，需要绕过 内罩体120的外侧壁，才能进入到第二风道腔142内，从而进一步延长了气流在风道结构内的流动路径，降低了气流流动速度，进而降低了出风噪音。
在本发明的一个实施例中，分隔件140分别连接至进风风道124的外侧壁和与容纳室出风部112相邻的电机容纳室110的内壁上，并将内罩体120与所述容纳室出风部112分隔开。例如，如图2-图4所示，分隔板上朝向上方的一侧、电机容纳室110的部分顶部以及位于分隔板和电机容纳室110的顶部之间的侧壁共同构造成第二风道腔142。由此，第一风道腔141和容纳室出风部112通过第二风道腔142连通，即气流从第一风道腔141流出后经过第一风道腔141，再由容纳室出风部112排出。
在本发明的一个实施例中，如图1和图2所示，内罩体出风部122形成在内罩体120的靠近容纳室出风部112的侧面上。气流沿着箭头a1的方向由内罩体出风部122流出后，进入到第一风道腔141内，并沿着箭头a2的方向围绕内罩体120的下部流动，再从电机容纳室110内的远离容纳室出风部112的一侧向上流动(如图2中箭头a4所示的方向)，然后沿着箭头a6所示的方向进入第二风道腔142，最后由容纳室出风部112排出。由此，将内罩体出风部122设置在内罩体120的靠近容纳室出风部112的侧面上，可以延长气流在第一风道腔141内的流动路径，降低了气流的流动速度，从而减弱了风道结构的出风噪音。在本发明的一个实施例中，电机130竖直地设置在第一风道腔141内，由此，可以延长气流在第一风道腔141内的流动路径。
在本发明的一个实施例中，内罩体出风部122由多个消音孔所形成。可以理解的是，消音孔可以为直径较小的孔，由此可以利用小孔消音的原理降低内罩体出风部122的出风噪音。为方便描述，内罩体120上形成有内罩体出风部122的外侧壁、以及与该位置处的外侧壁相对的电机容纳室110的内壁共同限定出第一风道腔141的第一段1411，第一段1411内气流的流动方向如图2中箭头a2所示。在如图2所示的示例中，与内罩体出风部122相比，第一风道腔141的第一段1411的空间较大，气流在通过内罩体出风部122进入到第一风道腔141的过程中，由于第一风道腔141的第一段1411处的空间陡然放大，因紊流而产生的噪音可以在进入到第一风道腔141内的过程中被减弱。
在本发明的一个实施例中，在内罩体出风部122朝向内罩体120的底面123的气体流动方向上，内罩体120与第一风道腔141的内壁之间的距离逐渐减小。在如图2所示的示例中，在如图2中箭头a2所示的方向上，第一风道腔141的第一段1411逐渐变窄。也就是说，垂直于箭头a2所示的方向的截面面积沿着第二段1412内的气流流动方向逐渐减小。由此，可以进一步过滤出风噪音，提高风道结构的静音效果。
根据本发明的一个实施例，在第一风道腔141内，内罩体120设置成使得内罩体120 的底面123和与底面123相对的第一风道腔141的内壁之间的距离最小，气流在第一风道腔141的第二段1412内沿着箭头a3所示的方向流动。换言之，内罩体120的底面123和与底面123相对的第一风道腔141的内壁之间限定出第一风道腔141的第二段1412，第二段1412与第一段1411连通，在第一风道腔141内，在垂直于气流流动的方向的截面上，第二段1412的截面面积最小。例如，在如图2所示的示例中，在垂直于气流流动的方向的截面上，第一段1411的截面面积大于第二段1412的截面面积，气流由第一段1411进入到第二段1412的过程中，气流流通通道由宽变窄，由此，可以进一步减小因紊流而产生的噪音。
进一步地，在从内罩体120的底面123朝向内罩体120的与内罩体出风部122相反的一侧的气体流动方向上，内罩体120与第一风道腔141的内壁之间的距离逐渐增大。也就是说，内罩体120上的与内罩体出风部122相反的一侧与第一风道腔141内壁限定出第一风道腔141的第三段1413，第三段1413与第二段1412连通，在第三段1413内气流沿着如图2中箭头a4所示的方向流动，垂直于箭头a4所示的方向上的截面沿着箭头a4所示的方向逐渐增大。由此，气流在经过较窄的第二段1412后，进入逐渐变宽的第三段1413，有效地减缓了气流流动速度，使气流进一步变得平缓，降低了因紊流产生的噪声。
在如图2所示的示例中，内罩体120邻近内罩体120顶壁的位置处与容纳室出风部112相反的一侧与第一风道腔141的内壁限定出第四段1414，第四段1414与第三段1413连通，气流在第四段1414内沿着箭头a5所示的方向方流动，在箭头a5所示的方向上第四段1414逐渐变窄。也就是说，在垂直于箭头a5所示的方向上的截面面积沿着箭头a5所示的方向逐渐变小。由此，可以对再一次对气流进行降噪，从而进一步降低风道结构的出风噪音。
更进一步地，第二风道腔142的垂直于气流流动方向的截面在朝向容纳室出风部112的方向上逐渐增大。由此，气流在流动的过程中，气流的流动空间逐渐扩大可以有效地降低气流的流动速度，进而消减风道结构的出风噪音。
如图1所示，风道结构进一步包括：海帕组件150。海帕组件150设置在容纳室出风部112处且位于第二风道腔142内。可以理解的是，海帕组件150具有过滤灰尘和消除噪音的作用，在容纳室出风部112处设置海帕组件150可以进一步消除风道结构的噪声，提高产品的静音效果以及除尘效果。
如图1-图5所示，根据本发明的一个实施例，风道结构进一步包括：外罩体160。外罩体160上形成有容纳室进风部111，其中外罩体160的一部分与分隔件140和表面清洁装置300形成第一风道腔141；以及与外罩体160的一部分相对的外罩体160的另一部分与分隔件140形成第二风道腔142。由此，可以进一步简化风道结构，使风道结构的结构更加紧凑、合理。
例如，在如图3所示的示例中，内罩体120的顶部朝向上方设有管状体125，管状体125的下端与内罩体120内部连通且形成为内罩体进风部121，管状体125内部形成进风风道124。为方便管状体125与外罩体160连接，管状体125外周壁上套设有连接部件170。连接部件170的下端与内罩体120的顶部的外侧壁连接，连接部件170的上端与进风风道124连通且形成容纳腔进风部111。连接部件170的靠近连接部件170的上端的侧壁上形成有沿连接部件周向方向延伸的卡槽171，外罩体160卡接在卡槽171内。
分隔板的一端套设在连接部件170的外周壁上且与内罩体120的顶部的外侧壁连接，分隔板的朝向外罩体160的一侧与外罩体160上与分隔板相对的部分构造层第二风道腔142，为了提高风道结构的静音效果，由分隔板和部分外罩体160限定出的第二风道腔142在垂直于气流流动方向的界面在朝向容纳室出风部112的方向上逐渐增大。
在本发明的一个实施例中，如图5所示，外罩体160的一部分的下边沿设置在表面清洁装置300的主体310上所形成的第一容纳槽311中，分隔件140的下边沿设置在主体310上所形成的第二容纳槽312中，第二容纳槽312和第一容纳槽311分别位于内罩体120的相对侧。由此，简化了外罩体160与表面清洁装置300的主体310之间的装配过程，提高了生产效率。
在本发明的一个实施例中，表面清洁装置300可以为卧式吸尘器或者立式吸尘器。
下面参照图2详细描述根据本发明实施例的用于表面清洁装置300的风道结构内气体流动过程。
如图2所示，气体沿着箭头a所示的方向由容纳腔进风部111进入到进风风道124内，再由内罩体进风部121进入到内罩体120内。
内罩体120内的气流沿着箭头a1所示的方向由内罩体出风部122流出，进入到第一风道腔141的第一段1411。由于内罩体出风部122由多个直径较小的消音孔构造成，第一风道腔141的第一段1411为空间较大的腔，当气流由内罩体出风部122进入到第一风道腔141的第一段1411时，由于气流流通空间陡然放大，因紊流而产生的噪音可以在进入到第一风道腔141内的过程中被减弱。
第一段1411内的气流沿着箭头a3所示的方向进入到第二段1412内，与第一段1411内气流流动的空间相比，第二段1412内气流流动的空间较窄，气流在由第一段1411进入到第二段1412的过程中，经历流动空间由宽变窄的过程，由此，可以进一步消减因风道结构内的噪声。
第二段1412内的气流沿着箭头a4所示的方向进入到第三段1413内，与第二段1412内的气流流动空间相比，第三段1413内的气流流动空间较宽，气流由第二段1412进入到 第三段1413的过程中，再次经历流动空间的由窄变宽，由此，气流流动空间再次放大，因紊流而产生的噪音可以在进入到第三段1413内的过程中再次被减弱。
第三段1413内的气流沿着箭头a5所示的方向进入到第四段1414内，与第三段1413内的气流流动空间相比，第四段1414内的气流流动空间较窄，气流由第三段1413进入到第四段1414的过程中，再次经历流动空间由宽变窄的过程，由此，可以再一次消减了风道结构内的出风噪音。
第四段内气流沿着箭头a6所示的防线进入到第二风道腔142内，并沿着箭头a7所示的方向流动，在箭头a7所示的流动方向上，第二风道腔142的垂直于该气流流动方向的截面在朝向容纳室出风部112的方向上逐渐增大。由此，可以有效地降低气流的流动速度，进而消减风道结构的出风噪音。
至此，气体在风道结构内完成了一次流动过程，内罩体、分隔板以及外罩体将风道结构限定出宽窄不一的气体流通通道，由于风道结构的宽窄变化，气体在的流动过程中，因紊流产生的噪音被逐渐的过滤、削弱，进而实现了风道结构的静音效果，从而提高了整机的静音效果。
如图1-图5所示，根据本发明实施例的表面清洁装置300，包括：尘杯320、旋风分离器330以及如上所述的风道组件。
具体而言，旋风分离器330容纳在尘杯320中，并对从尘杯320底部进入的空气进行旋风除尘，尘杯320的出风口322与内罩体进风部121相连通。如图1所示，尘杯320上形成有进风口321，气体由进气口进入到尘杯320中，再经过旋风分离器330进行除尘，经过除尘后的气体由尘杯320的出风口322流出，并由内罩体进风部121进入到风道结构。
根据本发明实施例的表面清洁装置300，利用分隔件140将电机容纳室110分隔成第一风道腔141和第二风道腔142，由此延长了气流在风道结构内的流动路径，降低了气流在第一风道腔141内的流动速度。另外，气流在流动的过程中，需要绕过内罩体120的外侧壁，才能进入到第二风道腔142内，从而进一步延长了气流在风道结构内的流动路径，降低了气流流动速度，进而降低了出风噪音。
在本发明的一个实施例中，尘杯320的出风口322与内罩体进风部121之间形成有稳流室340。由此，可以使由尘杯320流出的气体变得更加平缓，降低了进入到风道结构的气流的流动速度，有利于进一步消减进入到风道结构的出风噪音。进一步地，如图1所示，稳流室340的沿着垂直于气流流动的方向的截面从尘杯320的出风口322朝向内罩体进风部121逐渐增大。由此，可有利于消减进入到风道组件内的噪音。
下面参照图1和图2详细描述根据本发明实施例的用于表面清洁装置300的风道结构内气体流动过程。
如图1所示，气体由进气口进入到尘杯320中，再经过旋风分离器330进行除尘，经过除尘后的气体由尘杯320的出风口322流出，并由内罩体进风部121进入到稳流室340。
如图2所示，气体沿着箭头a所示的方向由容纳腔进风部111进入到进风风道124内，再由内罩体进风部121进入到内罩体120内。
内罩体120内的气流沿着箭头a1所示的方向由内罩体出风部122流出，进入到第一风道腔141的第一段1411。由于内罩体出风部122由多个直径较小的消音孔构造成，第一风道腔141的第一段1411为空间较大的腔，当气流由内罩体出风部122进入到第一风道腔141的第一段1411时，由于气流流通空间陡然放大，因紊流而产生的噪音可以在进入到第一风道腔141内的过程中被减弱。
第一段1411内的气流沿着箭头a3所示的方向进入到第二段1412内，与第一段1411内气流流动的空间相比，第二段1412内气流流动的空间较窄，气流在由第一段1411进入到第二段1412的过程中，经历流动空间由宽变窄的过程，由此，可以进一步消减因风道结构内的噪声。
第二段1412内的气流沿着箭头a4所示的方向进入到第三段1413内，与第二段1412内的气流流动空间相比，第三段1413内的气流流动空间较宽，气流由第二段1412进入到第三段1413的过程中，再次经历流动空间的由窄变宽，由此，气流流动空间再次放大，因紊流而产生的噪音可以在进入到第三段1413内的过程中再次被减弱。
第三段1413内的气流沿着箭头a5所示的方向进入到第四段1414内，与第三段1413内的气流流动空间相比，第四段1414内的气流流动空间较窄，气流由第三段1413进入到第四段1414的过程中，再次经历流动空间由宽变窄的过程，由此，可以再一次消减了风道结构的出风噪音。
第四段内气流沿着箭头a6所示的防线进入到第二风道腔142内，并沿着箭头a7所示的方向流动，在箭头a7所示的流动方向上，第二风道腔142的垂直于该气流流动方向的截面在朝向容纳室出风部112的方向上逐渐增大。由此，可以有效地降低气流的流动速度，进而消减风道结构的出风噪音。
至此，气体在风道结构内完成了一次流动过程，内罩体、分隔板以及外罩体将风道结构限定出宽窄不一的气体流通通道，由于风道结构的宽窄变化，气体在的流动过程中，因紊流产生的噪音被逐渐的过滤、削弱，进而实现了风道结构的静音效果，从而提高了整机的静音效果。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示 例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (12)

  1. 一种用于表面清洁装置的风道结构，其特征在于，包括：
    电机容纳室，所述电机容纳室分别设有容纳室进风部和容纳室出风部；
    内罩体，所述内罩体设置在所述电机容纳室内且设有内罩体进风部和内罩体出风部，其中所述容纳室进风部和所述内罩体进风部通过进风风道相连通；
    电机，所述电机容纳在所述内罩体内，其中
    所述电机容纳室内设置有分隔件，所述分隔件设置在所述内罩体和容纳室出风部之间以将所述电机容纳室分隔成第一风道腔和第二风道腔，所述内罩体容纳在所述第一风道腔内，所述第一风道腔与所述第二风道腔在所述进风风道的外壁处彼此相连通。
  2. 根据权利要求1所述的风道结构，其特征在于，所述内罩体出风部由多个消音孔所形成。
  3. 根据权利要求1或2所述的风道结构，其特征在于，所述内罩体出风部形成在所述内罩体的靠近所述容纳室出风部的侧面上。
  4. 根据权利要求3所述的风道结构，其特征在于，所述分隔件分别连接至所述进风风道的外侧壁和与所述容纳室出风部相邻的所述电机容纳室的内壁上，并将所述内罩体与所述容纳室出风部分隔开。
  5. 根据权利要求3所述的风道结构，其特征在于，在所述第一风道腔内，所述内罩体设置成使得所述内罩体的底面和与所述底面相对的所述第一风道腔的内壁之间的距离最小。
  6. 根据权利要求5所述的风道结构，其特征在于，在从所述内罩体的所述底面朝向所述内罩体的与所述内罩体出风部相反的一侧的气体流动方向上，所述内罩体与所述第一风道腔的所述内壁之间的距离逐渐增大。
  7. 根据权利要求5所述的风道结构，其特征在于，在所述内罩体出风部朝向所述内罩体的所述底面的气体流动方向上，所述内罩体与所述第一风道腔的所述内壁之间的距离逐渐减小。
  8. 根据权利要求1-7中任一项所述的风道结构，其特征在于，所述第二风道腔的垂直于气流流动方向的截面在朝向所述容纳室出风部的方向上逐渐增大。
  9. 根据权利要求1-8中任一项所述的风道结构，其特征在于，进一步包括：
    海帕组件，所述海帕组件设置在所述容纳室出风部处且位于所述第二风道腔内。
  10. 根据权利要求1-9中任一项所述的风道结构，其特征在于，进一步包括：
    外罩体，所述外罩体上形成有所述容纳室进风部，其中
    所述外罩体的一部分与所述分隔件和所述表面清洁装置形成所述第一风道腔；以及
    与所述外罩体的所述一部分相对的所述外罩体的另一部分与所述分隔件形成所述第二风道腔。
  11. 根据权利要求10所述的风道结构，其特征在于，所述外罩体的所述一部分的下边沿设置在所述表面清洁装置的主体上所形成的第一容纳槽中；以及
    所述分隔件的下边沿设置在所述主体上所形成的第二容纳槽中，所述第二容纳槽和所述第一容纳槽分别位于所述内罩体的相对侧。
  12. 一种表面清洁装置，其特征在于，包括：
    尘杯；
    旋风分离器，所述旋风分离器容纳在所述尘杯中，并对从所述尘杯底部进入的空气进行旋风除尘；
    如权利要求1-11中任一所述的风道结构，其中所述尘杯的出风口与所述内罩体进风部相连通。
PCT/CN2015/085299 2014-10-13 2015-07-28 风道结构及具有其的表面清洁装置 WO2016058434A1 (zh)

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