JPS6196350A - Automatic air flow deflecting device - Google Patents

Automatic air flow deflecting device

Info

Publication number
JPS6196350A
JPS6196350A JP21592084A JP21592084A JPS6196350A JP S6196350 A JPS6196350 A JP S6196350A JP 21592084 A JP21592084 A JP 21592084A JP 21592084 A JP21592084 A JP 21592084A JP S6196350 A JPS6196350 A JP S6196350A
Authority
JP
Japan
Prior art keywords
plate
motor
wind direction
air flow
flow deflecting
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.)
Pending
Application number
JP21592084A
Other languages
Japanese (ja)
Inventor
Masanao Otsuka
政尚 大塚
Koji Tanaka
幸二 田中
Ichiro Kamimura
一朗 上村
Hisashi Kogure
小暮　久
Tetsuo Nishiyama
西山　哲雄
Takahiko Ukuchi
隆彦 宇口
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP21592084A priority Critical patent/JPS6196350A/en
Publication of JPS6196350A publication Critical patent/JPS6196350A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/146—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1473—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cams or levers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)

Abstract

PURPOSE:To smoothly rock an air flow deflecting plate by a method wherein the movement of the air flow deflecting plate, which tends to move down by gravity faster than the rotating speed of a motor, is checked by a buffer, which is equipped so as to oppose in the rocking direction of the air flow deflecting plate. CONSTITUTION:When an air flow deflecting plate 5 is slightly inclined by a motor 14, the center of gravity of the plate 5 shifts to the forward side (the leftward side in the attached figure) of a fulcrum shaft 3, the plate 5 tends to move down counterclockwise by gravity faster than the rotating speed of a motor 14, because clearances exist in the turning force transfer mechanism of a motor. However, because the spring force of a buffer 17 applied to a rocking shaft 8 checks the gravity applied to the plate 5, the air flow deflecting plate 5 is smoothly pivoted by the turning force of the motor, which overcomes the spring force. With the smooth pivoting of the plate 5, the blowing-off direction of conditioned air is gradually and smoothly deflected obliquely downwards.

Description

【発明の詳細な説明】 （イ）産業上の利用分野 本発明は空気調和機に利用される自動風向変更装置に関
する。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an automatic wind direction changing device used in an air conditioner.

（ロ）従来の技術 モータにより風向変更板を自動的に揺動させる装置が空
気調和機や換気！１４に採用されているが、従来の装置
は例えば実会昭５１−５０３５９号公報で提示されてい
るように風向変更板を左右方向へ揺動させて吹出空気を
左右方向へ変更するものであった。(b) Conventional technology A device that automatically swings the wind direction changing plate using a motor is used for air conditioners and ventilation! 14, but the conventional device changes the blown air to the left and right by swinging a wind direction changing plate in the left and right directions, as disclosed in, for example, Jitsukai Publication No. 50359/1983. Ta.

Ｅ嗜　　発明が解決しようとする問題点モータの動力を
風向変更板に伝達する機構として回転可能に結合された
クランクやロッド等を用いており、これらを滑らかに回
転させる為にクリアランスをもたせて結合させている。Problem to be solved by the invention A crank, rod, etc. that are rotatably connected are used as a mechanism for transmitting the power of the motor to the wind direction changing plate, and in order to rotate them smoothly, they are connected with a clearance. I'm letting you do it.

このクリアランスは風向変更板を左右方向へ揺動させる
従来の装置においては何ら問題とならないが、天井吊型
空気調和機のよ５に風向変更板を上下方向へ揺動させる
装置にそのまま採用すると、風向変更板が水平状態から
斜下状態へと変わる途中で風向変更板が自らの自重でク
リアランスの分だけ急に下がって円ｌＩ＃に揺動されず
、美観が慣なわれると共に室内が均一に空調されない問
題点があった。This clearance does not pose any problem in conventional devices that swing the wind direction changing plate horizontally, but if it is used as is in a device that swings the wind direction changing plate vertically, such as a ceiling-hanging air conditioner, While the wind direction change plate changes from the horizontal state to the diagonal downward state, the wind direction change board suddenly lowers by its own weight by the amount of clearance and does not swing into the circle lI#, which improves the aesthetic appearance and makes the room uniform. There was a problem with no air conditioning.

に）問題点を解決するための手段 本発明はかかる問題点にｄＡ、吹出口の側板に支軸で上
下方向へ揺動可能に枢支される風向変更板と、この風向
変更板と一体に前記側板の円孤状の長孔内を摺動する揺
動軸と、一端がこり揺動軸と且つ他端がモータにより回
転円運動するクランクの先端と夫々回転可能に結合され
る口７ドとを有する自動風向変更装置Ｋ、風向変更板の
揺動方向く反発する緩衝具を備えたものである。B) Means for solving the problem The present invention solves this problem by providing a wind direction changing plate which is pivotably supported on a side plate of the air outlet so as to be able to swing vertically with a support shaft, and which is integrated with the wind direction changing plate. A swing shaft that slides in an arc-shaped elongated hole in the side plate, and a port 7 that is rotatably connected to the swing shaft at one end and the tip of a crank that rotates in a circular motion by a motor at the other end. This automatic wind direction changing device K is equipped with a shock absorber that provides repulsion in the swinging direction of the wind direction changing plate.

（ホ）作用 風向変更板の揺動に伴ない、風向変更板の重心が支軸の
真上位置から前後方向へ移行する際、クランクとロフト
並びに揺動軸における結合部のクリアランスや長孔と揺
動軸とのクリアランスによって風向変更板が自重でモー
タの回転速度よりも速く下がろうとしてもこの自重を緩
衝具で受は止めるので風向変更板は急に下がらず、円滑
に揺動される。(e) Operation When the center of gravity of the wind direction changing plate moves from the position directly above the spindle to the front and back direction as the wind direction changing plate swings, the clearance between the crank and the loft and the joint between the swing shaft and the elongated hole. Due to the clearance with the swing shaft, even if the wind direction change plate tries to lower due to its own weight faster than the rotational speed of the motor, this dead weight is stopped by the buffer, so the wind direction change plate does not fall suddenly and swings smoothly. .

（へ）実施例 第１図は天井吊型空気調和−における自動風向変更装置
の分解斜視図、第２図乃至第４図は異なる作動状態を示
す自動風向変更装置の側面図で。(F) Embodiment FIG. 1 is an exploded perspective view of an automatic wind direction changing device in a ceiling-suspended air conditioner, and FIGS. 2 to 4 are side views of the automatic wind direction changing device showing different operating states.

ｆｌ）は一点鎖綴矢印の如く調和空気が吹き出される吹
出口（２）の−板、（３）は側板（１１の内壁面（４）
から突出した支軸、（５）は支軸１３）にクリアランス
をもって回転可能に嵌入される軸孔（６）と側板（１）
の円孤状の長孔（７）内をクリアランスをもって摺動す
る揺動軸（８）とを端板（９１に設けた風向変更板、（
１Ｇは一端０υが揺動軸（８）と且つ他端α２の孔α３
かモータ（＋４１により回転円運動するクランクα５の
先端ｔｔｅと夫々クリアランスをもって回転可能に結合
されるロッドである。fl) is the − plate of the air outlet (2) from which conditioned air is blown out as shown by the chain arrow, and (3) is the inner wall surface (4) of the side plate (11).
The support shaft (5) protrudes from the support shaft (13), and the shaft hole (6) and side plate (1) are rotatably fitted into the support shaft 13) with clearance.
A swing shaft (8) that slides with clearance in an arc-shaped elongated hole (7) and a wind direction changing plate provided on an end plate (91).
1G has one end 0υ as the swing shaft (8) and the other end α2 as the hole α3
These rods are rotatably connected to the tip tte of a crank α5 which rotates in a circular motion by a motor (+41) with a clearance.

又、αＤは支軸（３）に軸孔（６）を嵌入する前に支軸
（３）Ｋ固定側環部Ｏｇが嵌合されると共に揺動軸（８
）を長孔（７）Ｋ挿通する前に揺動軸（８１に揺動側環
部０が嵌合され且つ折曲部（４）が側板（１１の固定孔
２１１１Ｃ内壁面（４）側から圧入されるバネからなる
ａｍ具で、一端側が固定側環部−と折曲部■とにより固
定されると共に他端側は揺動軸（８）と−緒に第２図に
示すＡ矢印方向とＢ矢印方向へ揺動される。そしてこの
揺動時に反発する緩ｍ具卸のバネ圧力はモータＩの回転
力の１／７程度と小さく設定されていると共に、第３図
、第４図圧水すように風向変更板（５）が支軸（３）を
支点として上下方向へ揺動する際、重心（ａ）（ｂ）が
変わって入方向とＢ方向とに自重がかかつてもこの重力
を受は止めるだけのバネ圧力に設定されている。In addition, αD is such that before the shaft hole (6) is fitted into the support shaft (3), the fixed side ring portion Og of the support shaft (3) K is fitted and the swing shaft (8
) is inserted into the elongated hole (7)K, the swing side ring part 0 is fitted into the swing shaft (81), and the bent part (4) is inserted from the inner wall surface (4) of the fixing hole 2111C of the side plate (11). It is an am tool made of a press-fitted spring, and one end is fixed by the fixed side ring part - and the bent part (■), and the other end is moved in the direction of the arrow A shown in Fig. 2 together with the swing shaft (8). and is swung in the direction of arrow B.The spring pressure of the loose fitting that rebounds during this swiveling is set to be as small as about 1/7 of the rotational force of motor I, and as shown in Figs. When the wind direction changing plate (5) swings up and down about the support shaft (3) as if pressing water, the center of gravity (a) and (b) change and even if the own weight is accumulated in the inlet direction and the B direction. The spring pressure is set to just enough to stop this gravity.

尚、モータα４は図示しない取付具により側板（１）の
外壁面器へ第２図乃至第４図に示す位置（固定されてい
る。Incidentally, the motor α4 is fixed to the outer wall surface of the side plate (1) at the position shown in FIGS. 2 to 4 (fixed) by a mounting tool (not shown).

以上の如く構成されており、第２図に示す状態に風向変
更板（５）がある時はこの重心（ｃｌが支軸（３）の真
上にあり、端板（９）を含む風向変更板（５）の重力が
支軸（３）Ｋかかつている。この第２図の状態から風。It is constructed as described above, and when the wind direction changing plate (5) is in the state shown in Figure 2, the center of gravity (cl) is directly above the support shaft (3), and the wind direction changing plate including the end plate (9) The gravity of the plate (5) is acting on the support shaft (3) K. From this state shown in Fig. 2, the wind is flowing.

向変災板（５）が第３図に示す状態の方向ヘモータＱ４
で僅かに傾くと重心（ｃｌが支軸（３）よりも前側（同
図の左側）に移動し、更に僅か傾くと風向変更板（５）
は上述のクリアランスにより自重で同図の反時計方向ヘ
モータ（１４１の回転速度よりも速く下がろうとするが
、この重力なり方向へ揺動軸（８）Ｋかかつている緩衝
具αηのバネ圧力で受は止めるので自重で勝手に下がる
ことはなく、このバネ圧力に打ち勝つモータＩの回転力
で風向変更板（５）は円滑に第３図に示す状態へ回動し
、これに伴ない調和空気の吹出方向は順次斜下方向へ滑
らかに変更されるつ逆に風向変更板（５）が第２図に示
す状態から＆！４図に示す状態の方向ヘモータα尋で僅
かに回動すると重心（ｃｌが支軸（３）よりも後側（同
図の右側）Ｋ移動し、更に僅か回動すると風向変更板（
５）は上述のクリアランスにより自重で同図の時計方向
ヘモータα尋の回転速度よりも速く回動しようとするが
、こや重力をＡ方向に揺動軸（８）Ｋかかっている緩衝
具αηのバネ圧力で受は止めるので自重で勝手に回動す
ることはなく、このバネ圧力に打ち勝つモータＩの回転
力で風向変更板（５）は円滑に第４図に示す水平状態へ
回動し、これに伴ない調和空気の吹出方向は斜下方向か
ら水平方向へ滑らかに変更される。Direction motor Q4 with direction change plate (5) in the state shown in Fig. 3
If it tilts slightly, the center of gravity (cl) moves to the front side (left side in the figure) of the support shaft (3), and if it tilts even slightly, the wind direction change plate (5)
Due to the above-mentioned clearance, the rotation speed of the motor (141) tries to fall counterclockwise in the same figure due to its own weight, but due to the spring pressure of the shock absorber αη that is applied to the swing axis (8) K in the direction of gravity. Since the receiver is stopped, it will not fall down automatically due to its own weight, and the rotational force of motor I that overcomes this spring pressure will smoothly rotate the wind direction change plate (5) to the state shown in Figure 3, and as a result, the conditioned air will change. The direction of air flow is gradually changed smoothly in the diagonally downward direction.Conversely, when the air direction changing plate (5) is slightly rotated from the state shown in Fig. 2 to the state shown in Fig. 4, the center of gravity changes. (When cl moves to the rear side (to the right in the figure) of the support shaft (3) and rotates a little further, the wind direction change plate (
5) attempts to rotate clockwise due to the above-mentioned clearance faster than the rotational speed of the motor α in the same figure due to its own weight, but the shock absorber αη on which the swing shaft (8) K is acting due to the gravity Since the holder is stopped by the spring pressure, it will not rotate freely due to its own weight, and the wind direction changing plate (5) will smoothly rotate to the horizontal state shown in Figure 4 due to the rotational force of motor I that overcomes this spring pressure. As a result, the blowing direction of the conditioned air is smoothly changed from the diagonally downward direction to the horizontal direction.

（ト）発明の効果 本発明によれば、風向変更板が上下方向に揺動する際に
この風向変更板の重心が変わって自動風向変更装置の機
構上のクリアランスにより風向変更板がモータの回転速
度よりも自重で速く回動しようとしてもこの回動方向に
反発する緩衝具で受は止め委ようＫしたので、風向変更
板は円滑に上下方向へ揺動し、美観を保つと共に室内を
むらなく空調することができる。(G) Effects of the Invention According to the present invention, when the wind direction changing plate swings in the vertical direction, the center of gravity of the wind direction changing plate changes, and due to the mechanical clearance of the automatic wind direction changing device, the wind direction changing plate is rotated by the motor. Even if it tries to rotate faster due to its own weight than the speed, the cushioning device that repulses the direction of rotation will stop the movement.The wind direction changing plate will smoothly swing up and down, maintaining the aesthetic appearance and making the room less uneven. It can be air conditioned without any need for air conditioning.

しかも左右方向へ風向変更板をモータで自動変更する従
来装置の機構を活用でき、製造コストを割安に抑えるこ
とができる。Furthermore, the mechanism of the conventional device that automatically changes the wind direction changing plate in the left and right directions using a motor can be utilized, and manufacturing costs can be kept relatively low.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示すもので、第１図は自動風向
変更装置の分解斜視図、第２図乃至第４図は異なる作動
状態を示す自動風向変更装置の側面図である。 （１）・・・側板、　（２）・・・吹出口、　（３）・
・・支軸、　（５）・・・風向変更板、　（７）・・・
長孔、　（訃・・揺動軸、　ａｏ・・・ａラド、　Ｉ・
・・モータ、　Ｑｓ・・・クランク、　ｔｔ′ｒＩ・・
・緩衝具。 出願人　三洋電機株式会社　外１名 代理人　弁理士　　佐　野　静　矢 筒１図 第４図 第３図The drawings show an embodiment of the present invention, and FIG. 1 is an exploded perspective view of the automatic wind direction changing device, and FIGS. 2 to 4 are side views of the automatic wind direction changing device showing different operating states. (1)...Side plate, (2)...Air outlet, (3)...
...Spindle, (5)...Wind direction change plate, (7)...
Long hole, (Oblin...swing axis, ao...arad, I...
...Motor, Qs...Crank, tt'rI...
・Buffer. Applicant Sanyo Electric Co., Ltd. and 1 other representative Patent attorney Shizuka Sano Quiver 1 Figure 4 Figure 3

Claims (1)

【特許請求の範囲】[Claims] （１）　吹出口の側板に支軸で上下方向へ揺動可能に枢
支される風向変更板と、この風向変更板と一体に前記側
板の円孤状の長孔内を摺動する揺動軸と、一端がこの揺
動軸と且つ他端がモータにより回転円運動するクランク
の先端と夫々回転可能に結合されるロッドと、風向変更
板の揺動方向に反発する緩衝具とを備えてなる自動風向
変更装置。(1) A wind direction changing plate that is pivoted to the side plate of the air outlet so as to be able to swing up and down on a support shaft, and a swing that slides integrally with this wind direction changing plate within a circular arc-shaped long hole in the side plate. A shaft, a rod having one end rotatably connected to the swing shaft and the other end rotatably connected to the tip of a crank that rotates in a circular motion by a motor, and a buffer that rebounds in the swing direction of the wind direction changing plate. Automatic wind direction change device.
JP21592084A 1984-10-15 1984-10-15 Automatic air flow deflecting device Pending JPS6196350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21592084A JPS6196350A (en) 1984-10-15 1984-10-15 Automatic air flow deflecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21592084A JPS6196350A (en) 1984-10-15 1984-10-15 Automatic air flow deflecting device

Publications (1)

Publication Number Publication Date
JPS6196350A true JPS6196350A (en) 1986-05-15

Family

ID=16680445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21592084A Pending JPS6196350A (en) 1984-10-15 1984-10-15 Automatic air flow deflecting device

Country Status (1)

Country Link
JP (1) JPS6196350A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11237076A (en) * 1998-02-24 1999-08-31 Fujitsu General Ltd Ceiling mounted type air conditioning equipment
CN109139561A (en) * 2018-09-30 2019-01-04 珠海格力电器股份有限公司 Air deflector movement device and fan
JPWO2018154804A1 (en) * 2017-02-21 2019-12-12 シャープ株式会社 Air conditioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846253A (en) * 1981-09-11 1983-03-17 Akatsuki Kinzoku Kogyo:Kk Crank device
JPS5930339U (en) * 1982-08-19 1984-02-25 籾山　邦昭 Press machine feeding device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846253A (en) * 1981-09-11 1983-03-17 Akatsuki Kinzoku Kogyo:Kk Crank device
JPS5930339U (en) * 1982-08-19 1984-02-25 籾山　邦昭 Press machine feeding device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11237076A (en) * 1998-02-24 1999-08-31 Fujitsu General Ltd Ceiling mounted type air conditioning equipment
JPWO2018154804A1 (en) * 2017-02-21 2019-12-12 シャープ株式会社 Air conditioner
CN109139561A (en) * 2018-09-30 2019-01-04 珠海格力电器股份有限公司 Air deflector movement device and fan

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