US20130220299A1 - Airflow guiding member and air duct with airflow guiding member - Google Patents

Airflow guiding member and air duct with airflow guiding member Download PDF

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Publication number
US20130220299A1
US20130220299A1 US13/884,613 US201013884613A US2013220299A1 US 20130220299 A1 US20130220299 A1 US 20130220299A1 US 201013884613 A US201013884613 A US 201013884613A US 2013220299 A1 US2013220299 A1 US 2013220299A1
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US
United States
Prior art keywords
guiding
airflow
section
guiding member
air duct
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US13/884,613
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English (en)
Inventor
Shuei Yuan Lee
Hui Nen Su
Yuan Liang Lee
Chia Chun Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ACXING INDUSTRIAL Co Ltd
Acxing Ind Co Ltd
Original Assignee
Acxing Ind Co Ltd
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
Application filed by Acxing Ind Co Ltd filed Critical Acxing Ind Co Ltd
Assigned to ACXING INDUSTRIAL CO., LTD. reassignment ACXING INDUSTRIAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEE, CHIA CHUN, LEE, SHUEI YUAN, LEE, YUAN LIANG, SU, HUI NEN
Publication of US20130220299A1 publication Critical patent/US20130220299A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2028—Removing cooking fumes using an air curtain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains

Definitions

  • the present invention is generally related to an airflow guiding member and an air duct with the airflow guiding member, and more particular to an airflow guiding member capable of forming a planar air wall (or air curtain) for the containment of pollutants in the air and an air duct with the airflow guiding member.
  • exhaust (or dust-collecting) devices are installed around the work station so as to remove the pollutants and to prevent the hazard to operators' health.
  • a conventional and common exhaust device is an exhaust fan on top of the work station such as the range hood on top of furnaces or the exhaust fan on top of an experiment table, so that the pollutants dispersed above the work station are drawn into the exhaust fan and removed.
  • the capture efficiency of the exhaust fan is compromised as the pollutants are diffused to the side ways, or by the environment's crosswind. The working environment is therefore filled with pollutants.
  • the smoke guiding machine includes a front machine, and left and right machines connected in parallel to the two opposite ends of the front machine.
  • the front, left, and right machines surround a working area on the work station.
  • motors and squirrel-cages are configured inside the front, left, and right machines.
  • a number of inlets are configured on the lateral sides, and a number of outlets are configured on the top sides of the casings of the front, left, and right machines.
  • the motors drive the squirrel-cages to spin, and outside air enters the machines from the inlets and exits from the outlets, thereby forming an invisible (transparent) air curtain between the work station and the exhaust fan around the working area.
  • the pollutants above the work station are as such contained within the working area.
  • the capture efficiency of the exhaust fan is enhanced as the pollutants are prevented from diffusing to the side ways, or from the environment's crosswind.
  • the front, left, and right machines are extruded hollow tubes so as to form connected air ducts inside the machines.
  • the fans are configured at the ends of the left and right machines opposite to the ends joined to the front machine. After the fans are activated, airflows are produced to flow from the left and right machines into the front machine.
  • a number of guiding holes are also punched on top of the air duct structures of the machines as the outlets so that airflows in the air ducts can flow upward out of the smoke guiding machine and form air curtains around the working area between the work station and the exhaust fan.
  • the extruded air duct structures are simpler in manufacturing relative to the smoking guiding machines using squirrel-cages. However, working out guiding holes of proper gaps, dimensions, and directions on the air ducts has a certain degree of difficulty. The resulted higher production cost is still an issue.
  • the present invention provides an airflow guiding member and an air duct with the airflow guiding member so as to obviate the problems of the conventional smoke guiding machine such as the air duct's complex structure, difficulty in assembly and in working out guiding holes of proper gaps, dimensions, and directions on an extruded air duct, and the resulted higher production cost to the air duct.
  • the present invention discloses an air duct applied on a smoke guiding machine having at least a fan module for producing an airflow.
  • the air duct comprises a body and at least an airflow guiding member.
  • the body has a slot outlet configured on the body along an axial direction of the body, and a passage inside the body connected to the slot outlet.
  • the airflow flows through the passage.
  • the airflow guiding member is detachably configured in the slot outlet.
  • the airflow guiding member comprises a guiding ditch with a receiving section, a regulating section, and a guiding section.
  • the regulating section is connected between the receiving and guiding sections.
  • the receiving section has a greater width than that of the regulating section, which in turn has a greater width than that of the guiding section.
  • the airflow is received by the receiving section into the regulating section and then thrusts out of the body after sequentially compressed by the regulating and guiding sections.
  • the present invention further discloses an airflow guiding member configured in a slot outlet of an air duct.
  • the air duct has an airflow inside, and the airflow flows outside the air duct through the airflow guiding member.
  • the airflow guiding member is characterized in that the airflow guiding member is detachably configured in the slot outlet; the airflow guiding member comprises a guiding ditch with a receiving section, a regulating section, and a guiding section; the regulating section is connected between the receiving and guiding sections; the receiving section has a greater width than that of the regulating section, which in turn has a greater width than that of the guiding section; the airflow is received by the receiving section into the regulating section and then thrusts out of the air duct after sequentially compressed by the regulating and guiding sections.
  • the function and effect of the present invention are described as follow.
  • the manufacturing and assembly of the air duct is simplified.
  • the higher cost due to the difficulty in working out guiding holes on extruded air ducts is as such avoided.
  • the width of the guiding ditch is gradually reduced from the receiving section, through the regulating section, and to the guiding section, the airflow uniformly flows out of the body with an increased speed to form a planar air wall to confine pollutants in the air.
  • FIG. 1 is a perspective breakdown diagram showing a first embodiment of the present invention.
  • FIG. 2A is a cross-sectional breakdown diagram showing an air duct of the first embodiment of the present invention.
  • FIG. 2B is a cross-sectional diagram showing an air duct of the first embodiment of the present invention after its assembly.
  • FIG. 3 is a perspective diagram showing airflow guiding members according to the first embodiment of the present invention.
  • FIG. 4 is a schematic planar diagram showing airflow guiding members according to the first embodiment of the present invention.
  • FIG. 5 is a side-view diagram showing airflow guiding members according to the first embodiment of the present invention.
  • FIG. 6 is a perspective diagram showing an application scenario of the first embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional diagram showing an application scenario of a second embodiment of the present invention.
  • FIG. 8 is a perspective diagram showing a third embodiment of the present invention.
  • FIG. 9 is a perspective diagram showing an application scenario of the third embodiment of the present invention.
  • FIG. 10A is a cross-sectional breakdown diagram showing an air duct of a fourth embodiment of the present invention.
  • FIG. 10B is a cross-sectional diagram showing an air duct of the fourth embodiment of the present invention after its assembly.
  • FIG. 11 is a perspective diagram showing an application scenario of the fourth embodiment of the present invention.
  • the air ducts 10 are applied to a smoke guiding machine 1 .
  • the smoke guiding machine 1 contains a number of air ducts 10 , a control member 20 , and two corner members 30 .
  • the air ducts 10 are connected two opposite ends of the control member 20 , respectively.
  • the two corner members 30 are arranged at the two sides of the control member 20 , each connecting two air ducts 10 , so that an included angle is formed between the two air ducts 10 at the same side to the control member 20 , and the two air ducts 10 are as such positioned laterally and perpendicularly relative to the control member 20 , respectively.
  • the control member 20 is electrically connected to an external power source (not shown), and contains a control panel 210 and a control circuit (not shown) inside the control member 20 electrically connected to the control panel 210 .
  • Each corner member 30 is configured with a number of air inlets 310 , and there are two fans 40 inside the corner member 30 , each positioned adjacent to one of the two air ducts 10 joined by the corner member 30 .
  • the fans 40 are electrically connected to the control circuit in the control member 20 , and as such are controlled by the control member 20 to produce an airflow through the two air ducts 10 .
  • each air duct 10 contains a body 110 and a number of airflow guiding members 120 .
  • the body 110 is a hollow tube having an internal passage 111 for air to flow through, and is configured with a slot outlet 112 arranged along the axial direction on the surface of the body 110 so that the passage 111 is exposed.
  • the airflow guiding members 120 are integrally formed, for example, of a plastic material by injection molding.
  • the airflow guiding members 120 are detachably configured along the slot outlets 112 of the bodies 110 .
  • Each airflow guiding member 120 contains a main element 121 , a panel 122 , and a guiding ditch 123 .
  • the main element 121 contains a support part 1211 and a joining part 1212 .
  • the panel 122 is configured on a side of the support part 1211 opposite to the joining part 1212 .
  • the width of the panel 122 is greater than that of the support part 1211 so that the panel 122 is extended beyond at least a side edge of the support part 1211 .
  • the width of the support part 1211 is compatible with that of the slot outlet 112 , and is greater than that of the joining part 1212 . Therefore, when an airflow guiding member 120 is configured in a slot outlet 112 , its main element 121 is plugged into the slot outlet 112 , its panel 122 has the edge extended beyond the support part 1211 against the body 110 , and the main element 121 is as such suspended inside the body 110 .
  • the guiding ditch 123 is configured along the axial direction of the body 110 on the airflow guiding member 120 , and penetrates through the airflow guiding member 120 along the radial direction of the body 110 .
  • the guiding ditch 123 has a receiving section 1231 , a regulating section 1232 , and a guiding section 1233 .
  • the regulating section 1232 is connected between the receiving section 1231 and the guiding section 1233 .
  • the receiving section 1231 and the regulating section 1232 are perpendicular to the axle of the body 110 .
  • the guiding section 1233 can, but is not limited to, be slant to the regulating section 1232 .
  • the receiving section 1231 correspondingly penetrates the joining part 1212 of the main element 121
  • the regulating section 1232 correspondingly penetrates the support part 1211 of the main element 121
  • the guiding section 122 correspondingly penetrates the panel 122 .
  • the regulating section 1232 can, but is not limited to, be formed by a number of channels 1234 arranged at intervals in the support part 1211 as shown in FIG. 4 .
  • the regulating section 1232 can be an elongated trough through the support part 1211 similar to the receiving and guiding sections 231 and 1233 .
  • the receiving section 1231 has a greater width than that of the regulating section 1232 , which in turn has a greater width than that of the guiding section 1233 .
  • the width of the receiving section 1231 is gradually reduced towards to the regulating section 1232 so that the guiding ditch 123 has a nozzle-like structure on the airflow guiding member 120 .
  • a number of airflow guiding members 120 are end-to-end arranged in series along the body 110 's axial direction in the slot outlet 120 , thereby forming an airflow guiding device 130 whose length is compatible with that of the slot outlet 112 .
  • the airflow guiding members 120 have either a bulge 124 and/or a notch 125 such as a dovetailed notch corresponding to the bulge 124 so that two adjacent airflow guiding members 120 can have one's bulge 124 embedded into the other's notch 125 to achieve the end-to-end connection as shown in FIGS. 3 and 4 .
  • each airflow guiding member 120 has at least a through hole 1213 on the support part 1211 along the axial direction of the body 110 (i.e., along the length of the main element 121 ) penetrating the support part 1211 . Therefore, when the airflow guiding members 120 are arranged in series, their through holes 1213 can be threaded through by an axial rod 126 so that the airflow guiding members 120 are joined into an elongated airflow guiding device 130 as shown in FIG. 5 .
  • the axial rod 126 provides support to the airflow guiding members 120 so as to enhance the structural strength of the airflow guiding device 130 .
  • the axial rod 126 has a textured structure 1261 at one end so as to increase the axial rod 126 's friction in the through hole 1213 and to prevent the axial rod 126 from falling out of the through hole 1213 .
  • the ways that the airflow guiding members 120 are series-connected described above are only exemplary, and are not intended to limit the present invention. Other similar ways of connecting the airflow guiding members 120 should be considered within the scope of the present invention.
  • one of the adjacent airflow guiding members can have a joining region 1214 of its support part 1211 exposed by reducing the length of the panel 122 , and the other airflow guiding member 120 can have its panel 122 on the support part 1211 extended to form an extension piece 1221 .
  • one's extension piece 1221 is attached to the other's joining region 1214 and the gap between the airflow guiding members 120 is sealed.
  • the air flowing through the body 110 is as such guided outside of the body 110 only through the guiding ditch 123 .
  • the smoking guiding apparatus 1 is placed on a work station 5 where pollutants are produced, such as on a chemical experiment table or on a kitchen counter.
  • the smoke guiding machine 1 is positioned on a kitchen counter where the smoke guiding machine 1 has the air ducts 10 surrounding a working area 520 on the work station 5 with furnaces 510 within the working area 520 .
  • a range hood 6 is configured correspondingly over the working area 520 .
  • the airflow guiding members 120 in the air ducts 10 have the guiding sections 1233 of the guiding ditches 123 aimed slantwise towards the working area 520 .
  • the fans 40 are activated to produce an airflow through the passages 111 of the bodies 110 .
  • the airflow flows in a turbulent form to the airflow guiding members 120 and, as the width of the receiving sections 1231 shrink towards the regulating sections 1232 , is converged to the receiving sections 1231 .
  • As the airflow flows through the regulating sections 1232 through the receiving sections 1231 it is transformed into laminated flows of uniform speeds by the internal structure of the regulating sections 1232 .
  • the airflow then flows outside of the bodies 110 through the guiding sections 1233 .
  • the airflow is compressed and speeded up as it flows sequentially through the regulating section 1232 and the guiding section 1233 .
  • the airflow as such thrusts slantwise out of the body 110 to form a planar air wall (or air curtain) around the working area 520 .
  • the smoke (i.e., pollutant) produced by the furnaces 510 is therefore confined between the working area 520 and the range hood 6 , effectively preventing the smoke from spreading or from being drafted by external current into the outside of the working area 520 .
  • the capture efficiency of the range hood 6 is thereby enhanced and people's health will not be affected by pervasive smoke.
  • the air ducts disclosed by the present invention utilizes the nozzle-like structures of the airflow guiding members' guiding ditches to eject airflow uniformly with increased speed from the airflow guiding members to form planar air walls within which the pollutants are confined.
  • Different numbers of airflow guiding members can be cascaded to meet the various lengths of different bodies, thereby enhancing the assembly flexibility and convenience.
  • the manufacturing and assembly of the air ducts are simplified. The higher cost due to the difficulty in working out guiding holes on extruded air ducts is as such avoided.
  • the smoke guiding machine can also be installed below the counter.
  • the air ducts 10 of a second embodiment of the present invention have the width of their joining parts 1212 compatible with that of the slot outlets 1212 so that the airflow guiding members 120 can have their joining parts 1212 plugged into the slot outlets 112 and the support parts 1211 are extended above the bodies 110 , thereby forming a gap matching the depth of the work station's counter. Therefore, the bodies 110 can be first configured beneath the counter of the work station 5 .
  • the joining parts 1212 of the airflow guiding members 120 are plugged into the slot outlets 112 with the panels 122 against the work station 5 's counter top.
  • the counter of the work station 5 is as such sandwiched between the panels 122 and the bodies 110 , achieving a clean and simple appearance for the counter of the work station 5 .
  • the air ducts 10 according to a third embodiment of the present invention are similar structure-wise to those of the first embodiment.
  • the smoke guiding machine 1 has linearly arranged air ducts 10 .
  • the smoke guiding machine 1 can be installed around the furnaces 510 in a restaurant as shown in FIG. 9 .
  • the air ducts 10 can, but are not limited to, have the dimensions of the main elements 121 of the air guiding members 120 compatible with those of the slot outlets 112 of the bodies 110 .
  • each air duct 10 is composed of a single airflow guiding member 120 and body 110 .
  • the air flowing inside the body 110 is guided to form a planar air wall through the guiding ditch 123 around the furnaces 510 so as to contain the pollutants.
  • the air ducts 10 of a fourth embodiment is structurally similar to the previous third embodiment. Only their difference is described as follows.
  • the body 110 has a trough 113 on each edge bordering the slot outlet 112 along the axial direction of the body 110 .
  • the width of the troughs 113 is compatible with that of the panels 122 . Therefore, when an airflow guiding member 120 is joined to a body 110 , the two opposing sides of the panel 122 extending beyond the main element 121 are plugged into and locked in the troughs 113 of the body 110 .
  • the airflow guiding member 120 is as such reliably joined to the body 110 , preventing its falling off from the slot outlet 112 of the body 110 .
  • the smoke guiding machine 1 can also be applied in downward blowing configurations such as the installation on the top side of a frame 7 of the doors to a department store, restaurant, or mall to produce a planar air wall.
  • the pollutants dispersed in the air are as such blocked outside and the cleanness of the air inside is maintained.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Air-Flow Control Members (AREA)
  • Duct Arrangements (AREA)
US13/884,613 2010-11-26 2010-11-26 Airflow guiding member and air duct with airflow guiding member Abandoned US20130220299A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/001896 WO2012068706A1 (zh) 2010-11-26 2010-11-26 导流元件及具有此导流元件的导风管

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US20130220299A1 true US20130220299A1 (en) 2013-08-29

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US13/884,613 Abandoned US20130220299A1 (en) 2010-11-26 2010-11-26 Airflow guiding member and air duct with airflow guiding member

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US (1) US20130220299A1 (ko)
JP (1) JP5604600B2 (ko)
KR (1) KR101606344B1 (ko)
WO (1) WO2012068706A1 (ko)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130125764A1 (en) * 2011-11-17 2013-05-23 Sogang University Research And Business Foundation Ventilation apparatus and cooking system having the same
US20140116414A1 (en) * 2012-10-29 2014-05-01 Broan-Nutone Llc Custom range hood system and method
CN104776476A (zh) * 2015-04-16 2015-07-15 清华大学 一种基于室内pm2.5和co2控制的双功能厨房气幕式油烟机
ITUB20151068A1 (it) * 2015-05-27 2016-11-27 Tre P Eng S R L Piano di cottura soffiante
CN107860046A (zh) * 2017-12-26 2018-03-30 三立安薪（北京）科技有限公司 导烟机
EP3358259A1 (en) * 2017-02-02 2018-08-08 Electrolux Appliances Aktiebolag Kitchen assembly
US20210254838A1 (en) * 2019-04-22 2021-08-19 Shanmin SUN Balanced pollutant cleaning system

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US20100095949A1 (en) * 2008-10-17 2010-04-22 Rong Fung Huang Pollutant removing device and oblique single air curtain range hood using the device

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130125764A1 (en) * 2011-11-17 2013-05-23 Sogang University Research And Business Foundation Ventilation apparatus and cooking system having the same
US9874356B2 (en) * 2011-11-17 2018-01-23 Samsung Electronics Co., Ltd. Ventilation apparatus and cooking system having the same
US20140116414A1 (en) * 2012-10-29 2014-05-01 Broan-Nutone Llc Custom range hood system and method
CN104776476A (zh) * 2015-04-16 2015-07-15 清华大学 一种基于室内pm2.5和co2控制的双功能厨房气幕式油烟机
ITUB20151068A1 (it) * 2015-05-27 2016-11-27 Tre P Eng S R L Piano di cottura soffiante
WO2016189379A1 (en) * 2015-05-27 2016-12-01 Tre P Engineering S.R.L. Blowing cooking hob
EP3358259A1 (en) * 2017-02-02 2018-08-08 Electrolux Appliances Aktiebolag Kitchen assembly
WO2018141536A1 (en) * 2017-02-02 2018-08-09 Electrolux Appliances Aktiebolag Kitchen assembly
CN110177978A (zh) * 2017-02-02 2019-08-27 伊莱克斯家用电器股份公司 厨房组件
CN107860046A (zh) * 2017-12-26 2018-03-30 三立安薪（北京）科技有限公司 导烟机
US20210254838A1 (en) * 2019-04-22 2021-08-19 Shanmin SUN Balanced pollutant cleaning system
US11892172B2 (en) * 2019-04-22 2024-02-06 Shanmin SUN Balanced pollutant cleaning system

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WO2012068706A1 (zh) 2012-05-31
KR101606344B1 (ko) 2016-03-28
KR20130089260A (ko) 2013-08-09
JP5604600B2 (ja) 2014-10-08
JP2013543102A (ja) 2013-11-28

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Owner name: ACXING INDUSTRIAL CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, SHUEI YUAN;SU, HUI NEN;LEE, YUAN LIANG;AND OTHERS;REEL/FRAME:030389/0214

Effective date: 20130507

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION