WO2006009348A1

WO2006009348A1 - Slide-type range hood

Info

Publication number: WO2006009348A1
Application number: PCT/KR2005/001087
Authority: WO
Inventors: Jeong Sik Kim
Original assignee: Dae Sung Engineering & Research Co., Ltd
Priority date: 2004-07-21
Filing date: 2005-04-14
Publication date: 2006-01-26
Also published as: KR100466663B1; JP2006032356A

Abstract

Disclosed herein is a slide-type range hood. The range hood is constructed so that a slider (30) is mounted to the lower portion of a hood housing (21) to be pushed into or pulled out from the hood housing, an exhaust fan (24) is installed in the hood housing and operated to suck odors or the like from a room through exhaust filters mounted to the bottom of the hood housing and the slider, prior to discharging the odors through a backdraft exhaust damper (23) to the atmosphere, an air supply housing (50) having an air supply fan (53) is mounted on the hood housing, and a front injection trough having a nozzle is mounted to the front of the slider, thus jetting exterior air, drawn by the operation of the air supply fan, through the nozzle, therefore forming an air curtain under the front of the range hood.

Description

SLIDE-TYPE RANGE HOOD

Technical Field

[1] The present invention relates toa slide-type range hood, which is constructed so that a slider is mounted to a lower portion of a hood housing in such a way as to be pushed into or pulled out from the hood housing, an exhaust fan is installed in the hood housing and operated to suck odors and hot air from a room, especially a kitchen, through exhaust filters mounted to the bottom of the hood housing and the bottom of the slider, prior to discharging the odors and hot air through a backdraft exhaust damper to the atmosphere, an air supply housing having an air supply fan is mounted on the hood housing, and a front injection trough having a nozzle along the bottom thereof is mounted to the front of the slider, thus jetting exterior air, drawn by the operation of the air supply fan installed in the air supply housing, through the nozzle of the front injection trough, therefore forming an air curtain under the front of the range hood. Background Art

[2] Generally, a conventional slide-type range hood 1 includes a box-shaped hood housing 2. A backdraft damper 4 equipped with an exhaust fan 5 is installed in the hood housing 2, and an exhaust filter 6 is mounted to the bottom of the hood housing 2. Side support frames 3 are provided along opposite sides of a lower portion of the hood housing 2. Further, a slider 10 is inserted through an opening 2-1 provided on the front of the hood housing 2 and supported on the side support frames 3 to be pushed into or pulled out from the hood housing 2, with a front plate 11 attached to the front of the slider 10. An exhaust duct 12 is defined in the slider 10 and opens rearwards, with an exhaust filter 13 mounted to the bottom of the slider 10. Further, a limit switch 7 is installed at a rear position on theinner surface of either of the side support frames 3, and detects whether the slider 10 is pushed into or pulled out fromthe hood housing 2, thus controlling the operation of the exhaust fan 5.

[3] When a user holds thelower end of the front plate 11 and pulls the slider 10 out of the hood housing 2, as shown in FIG. 3, the limit switch 7 detects that the slider 10 has been pulled out from the hood housing 2, and simultaneously electricity is supplied to the exhaust fan 5.

[4] When the electricity is supplied to the exhaust fan 5, the exhaust fan 5 operates to suck air from a room. Due to the suction force of the exhaust fan 5, odors and hot air produced from a cooking apparatus, such as a gas range, are forcibly drawn into the hood housing 2 through the exhaust filters 6 and 13 that are mounted to the bottom of the hood housing 2 and the bottom ofthe slider 10, respectively. The odors and hot air, drawn through the exhaust filters 6 and 13 into the hood housing 2, are discharged through the backdraft damper 4 to the atmosphere.

[5] The conventional slide-type range hood 1, constructed and operated as described above, is problematic in that it merely sucks odors and hot air produced from a cooking apparatus, such as a gas range, using the suction force of the exhaust fan 5, so that it is impossible to completely suck odors, hot air, and noxious gases produced bythe cooking apparatus. Thereby, some of the odors, hot air, and noxious gases produced from the cooking apparatus may disperse into a room, thus making indoor air dirty.

[6] That is, some of the odors and hot air moving upwards due to the suction force of the exhaust fan 5 may not enter the hood housing 2 and the slider 10. Such odors, hot air, and noxiousgases move upwards to the ceiling, and circulate in a room. Thereby, the conventional slide-type hood housing is problematic in that the room may quickly become dirty.

Disclosure of Invention Technical Problem

[7] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and the present invention aims to provide an improved slide-type range hood.

[8] An object of the present invention is to provide a slide-type range hood, which is constructed so that a slider is mounted to thelower portion of a hood housing in such a way as to be pushed into or pulled out fromthe hood housing, an exhaust fan is installed in the hood housing and operated to suck odors and hot air from a room, especially a kitchen, through exhaust filters mounted to the bottom of the hood housing and the bottom of the slider, prior to discharging the odors and hot air through a backdraft exhaust damper to the atmosphere, an air supply housing having an air supply fan is mounted on the hood housing, and a front injection trough having a nozzle along the bottom thereof is mounted to the front of the slider.

[9] Another object of the present invention is to provide a slide-type range hood, which jets exterior air, drawn by the operation of an air supply fan installed in an air supply housing, through the nozzle of a front injection trough, thus forming an air curtain under thefront of the range hood, therefore preventing the spread of odors, hot air, and noxious gases produced by a cooking apparatus, such as a gas range, and preventing indoor air from being polluted. Further, the air curtain allows odors, hot air, and noxious gases existing around the range hood to be more easily and smoothly discharged to the atmosphere.

[10] A further object of the present invention is to provide a slide-type range hood, which uses exterior air as air that is jetted under the front of the range hood through thenozzle of a front injection trough to thus form an air curtain, and supplies the exterior air to a room, thus ventilating the room, and keeping the room more pleasant.

[11] In order to accomplish the above objects, the present invention providesa slide-type range hood, including a hood housing, a slider mounted to a lower portion of the hood housing in such a way as to be pulled out from or pushed into the hood housing, a limit switch to detect whether the slider has been pulled out from the hood housing, an exhaust fan operating when the slider has been pulled out from the hood housing, thus drawing odors, hot air, and noxious gases from a room through an exhaust filter mounted to a bottom of the hood housing and an exhaust filter mounted to a bottom of the slider, and a backdraft damper to discharge the drawn odors, hot air, and noxious gases to the atmosphere, wherein an air supply housing is mounted to a predetermined position on the hood housing to be isolated from the hood housing, and includesan air supply chamber, an air supply fan installed in the air supply chamber, and an air supply filter mounted to an upper surface of the air supply housing, anda front injection trough is mounted to a front of the slider which is mounted to the lower portion of the hood housing in such a way as to be pulled out from or pushed into the hood housing, with a nozzle formed on a bottom of the front injection trough, and a communication means allows the air supply chamber of the air supply housing to communicate with the front injection trough, thus supplying air from the air supply chamber to the front injection trough. Technical Solution

[12] The above and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiment of the invention in conjunction with the accompanying drawings.

[13] FIGS. 4 to 7 show a slide-type range hood 20, according to the preferred embodiment of the present invention. FIGS. 4, 5, and 6 are a plan view, a front sectional view, and a side sectional view, respectively,showing the slide-type range hood 20 according to this invention, and FIG. 7 is an operational diagram of the slide- type range hood 20 of this invention.

[14] The slide-type range hood 20 includes a hood housing 21 having a box shape. Side support frames 22 are provided on opposite sides of thelower portion of the hood housing 21. Further, a backdraft damper 23 is installed in the hood housing 21, and an exhaust fan 24 is installed in the backdraft damper 23. An exhaust filter 25 is mounted to the bottom of the hood housing 21. Further, a slider 30 is supported on the side support frames 22, provided on the opposite sides of the lower portion of the hood housing 21, to be pushed into or pulled out from the hood housing 21. [15] An exhaust duct 31 is defined in the slider 30 to open rearwards. An exhaust filter

32 is mounted to the bottom of the slider 30. A limit switch 26 is installed at a rear position on theinner surface of either of the side support frames 22, and detects whether the slider 30 is pushed into or pulled out from the hood housing 21, thus controlling the operation of the exhaust fan 24 and an air supply fan 53 that will be described hereinafter.

[16] Further, an air supply housing 50 is mounted to a position on a top plate 21-1 con¬ stituting the hood housing 21 such that the air supply housing 50 is isolated from the hood housing 21. Theair supply fan 53 is installed in an air supply chamber 51 which is defined in the air supply housing 50. Further, an air supply filter 52 is mounted to theupper surface of the air supply housing 50.

[17] A front injection trough 40 is mounted to the front of the slider 30 which is provided on thelower portion of the hood housing 21 and supported on the side support frames 22 to be pushed into or pulled out from the hood housing 21. A nozzle 41 is formed on the bottom of the front injection trough 40 to open downwards, and jets air to form an air curtain.

[18] A communication means, which allows the air supply chamber 51 of the air supply housing 50 to communicate with the front injection trough 40 of the slider 30, comprises a front partition plate 54. The front partition plate 54 is installed in the hood housing 21 to be parallel to a front plate 58, thus defining an air supply duct 55. The upper end of the air supply duct 55communicates with the air supply chamber 51, and the lower end of the air supply duct 55 forms an outlet communicating port 56.A middle plate 34 is provided at a position in the slider 30 to be parallel to an upper plate 33. Thereby, an air supply duct 35 is provided above the middle plate 34, while the exhaust duct 31 is provided under the middle plate 34.

[19] A rear portion of the upper plate 33 of the slider 30 is removed, thus forming a space. A stopper 37 is provided at an inside end of the upper plate 33, and is stopped by the front plate 58 of the hood housing 21. A guide wall 38 is provided on a rear portion of the middle plate 34 to be higher than the upper plate 33. An inlet com¬ municating port 36 is provided between the stopper 37 of the upper plate 33 and the guide wall 38, and communicates with the air supply duct 35. Locking hooks 57 and 39 are provided at the lower end of the front partition plate 54 defining the air supply duct 55 and an upper end of the guide wall 38 defining the inlet communicating port 36, respectively, such that the locking hooks 57 and 39 face each other. In this case, the locking hook 39 of the guide wall 38 is provided above the locking hook 57 of the front partition plate 54 to cover the locking hook 57.

Advantageous Effects [20] According to the present invention, a slide-type range hood is constructed so that a slider is mounted to thelower portion of a hood housing in such a way as to be pushed into or pulled out from the hood housing, an exhaust fan is installed in the hood housing and operated to suck odors and hot air from a room, especially a kitchen, through exhaust filters mounted to the bottom of the hood housing and the bottom of the slider, prior to discharging the odors and hot air through a backdraft exhaust damper to the atmosphere, an air supply housing having an air supply fan is mounted on the hood housing, and a front injection trough having a nozzle along thebottom thereof is mounted to the front of the slider. In this case, exterior air,drawn by the operation of the air supply fan installed in the air supply housing, is jetted through the nozzle of the front injection trough, thus forming an air curtain under the front of the range hood, therefore preventing the spread of odors, hot air, and noxious gases produced bya cooking apparatus, such as a gas range, and preventing indoor air from being polluted. Further, the air curtain allows odors, hot air, and noxious gases existing around the range hood to be more easily and smoothly discharged to the atmosphere. Furthermore, the slide-type range hood uses exterior air as air that is jetted under the front of the range hood through thenozzle of the front injection trough to thus form the air curtain, and supplies the exterior air to a room, thus ventilating the room, and keeping the room more pleasant. Brief Description of the Drawings

[21] FIGS. 1 to 3 are a front sectional view, a side sectional view, and an operational diagram, respectively, showing a conventional slide-type range hood;

[22] FIGS. 4 to 6 are a plan view, a front sectional view, and a side sectional view, re- spectively,showing a slide-type range hood, according to the present invention; and

[23] FIG. 7 is an operational diagram of the slide-type range hood, according to the present invention. Best Mode for Carrying Out the Invention

[24] A slide-type range hood 20 according to the present invention normally maintains the state of FIG. 6. That is, a slider 30 is received in a hood housing 21 while being supported on side support frames 22 of the hood housing 21.

[25] The slider 30 supported on the side support frames 22 is pulled out from the hood housing 21, as shown in FIG. 3. At this time, a limit switch 26 detects that the slider 30 has been pulled out from the hood housing 21. In response tothe detected result, an exhaust fan 24 installed in the hood housing 21 and an air supply fan 53 installed in an air supply housing 50 are simultaneously operated.

[26] Particularly, when the slider 30 supported on the side support frames 22 is pulled out from the hood housing 21, as shown in FIG. 3, a stopper 37 provided on an upper plate 33 of the slider 30 is stopped by a front plate 58 of the hood housing 21. A locking hook 39 of a guide wall 38 engages with a locking hook 57 of a front partition plate 54, so that the slider 30 does not move outwards any more. Thus, the slider 30 is stopped.

[27] Further, when the air supply fan 53 installed in the air supply housing 50 is operated, fresh air is drawn through an air supply filter 52 into an air supply chamber 51, due to the suction force of the air supply fan 53. The fresh air drawn into the air supply chamber 51 passes through an air supply duct 55 which is defined between thefront plate 58 and the front partition plate 54. The air flows through an outlet com¬ municating port 56 and an inlet communicating port 36 which communicate with each other, prior to flowing into an air supply duct 35 defined between the upper plate 33 and a middle plate 34 of the slider 30.

[28] The fresh air drawn into the air supply duct 35 is jetteddownwards through a nozzle

41 of a front injection trough 40. The exterior air jetted downwards through the nozzle 41 forms an air curtain 42 in front of the exhaust filters 25 and 32 orthe cooking apparatus, such as a gas range. When the air curtain 42 is formed in front of the cooking apparatus, the air curtain 42 prevents the spread of odors, hot air, or noxious gases produced by the cooking apparatus.

[29] The odors, hot air, or noxious gases, which do not escape outside ofthe air curtain

42, are drawn by the exhaust fan 24 that is operated in the hood housing 21. Afterwards, the drawn odors, hot air, or noxious gases are discharged to the atmosphere through the backdraft exhaust damper 4. According to this invention, the spread of the odors, hot air, or noxious gases produced by the cooking apparatus, such as the gas range, is prevented by the air curtain 42. Thereby, the odors, hot air, or noxious gases are not dispersed into a room, thus keeping the room pleasant.

[30] Although the preferred embodiment of the present invention has been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Industrial Applicability

[31] As described above, the present invention provides an improved slide-type range hood, which is installed above a cooking apparatus, such as a gas range, thus forcibly drawing odors, hot air, etc. produced during a cooking process, prior to discharging themto the atmosphere. According to this invention, the range hood jets air under the bottom of the range hood, thus forming an air curtain.

Claims

[1] A slide-type range hood, comprising a hood housing, a slider mounted to a lower portion of the hood housing in such a way as to be pulled out from or pushed into the hood housing, a limit switch to detect whether the slider has been pulled out from the hood housing, an exhaust fan operating when the slider has been pulled out from the hood housing, thus drawing odors, hot air, and noxious gases from a room through an exhaust filter mounted to a bottom of the hood housing and an exhaust filter mounted to a bottom of the slider, a backdraft damper to discharge the drawn odors, hot air, and noxious gases to the atmosphere, an air supply housing mounted to a predetermined position on the hood housing to be isolated from the hood housing, and including an air supply chamber, an air supply fan installed in the air supply chamber, and an air supply filter mounted to an upper surface of the air supply housing, a front injection trough mounted to a front of the slider which is mounted to the lower portion of the hood housing in such a way as to be pulled out from or pushed into the hood housing, with a nozzle formed on a bottom of the front injection trough, and communication means to allow the air supply chamber of the air supply housing to communicate with the front injection trough, thus supplying air from the air supply chamber to the front injection trough, wherein the communication means, allowing the air supply chamber of the air supply housing to communicate with the front injection trough, comprises a front partition plate, the front partition plate being installed in the hood housing to be parallel to a front plate of the hood housing, thus defining a first air supply duct, with an upper end of the first air supply duct communicating with the air supply chamber, and a lower end of the first air supply duct forming an outlet com¬ municating port, a middle plate is mounted to a predetermined position in the slider to be parallel to an upper plate of the slider, thus defining a second air supply duct above the middle plate, with an exhaust duct provided under the middle plate, a rear portion of the upper plate of the slider comprises a space, a stopper is provided on an inside end of the upper plate to be stopped by the front plate of the hood housing, and a guide wall is provided on a rear portion of the middle plate to be higher than the upper plate, thus defining an inlet communicating port between the stopper and the guide wall, the inlet communicating port coupled to the second air supply duct, and a first locking hook is provided at a lower end of the front partition plate defining the first air supply duct, and a second locking hook is provided at an upper end of the guide wall defining the inlet communicating port to correspond to the first locking hook, the second locking hook of the guide wall being positioned above the first locking hook of the front partition wall to cover the first locking hook.