JPH07328368A - Air cleaner - Google Patents

Air cleaner

Info

Publication number
JPH07328368A
JPH07328368A JP6124086A JP12408694A JPH07328368A JP H07328368 A JPH07328368 A JP H07328368A JP 6124086 A JP6124086 A JP 6124086A JP 12408694 A JP12408694 A JP 12408694A JP H07328368 A JPH07328368 A JP H07328368A
Authority
JP
Japan
Prior art keywords
air
section
sterilization
casing
air cleaner
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
JP6124086A
Other languages
Japanese (ja)
Inventor
義昭 ▲高▼木
Yoshiaki Takagi
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.)
NIPPON TEKUNISU KK
Original Assignee
NIPPON TEKUNISU KK
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 NIPPON TEKUNISU KK filed Critical NIPPON TEKUNISU KK
Priority to JP6124086A priority Critical patent/JPH07328368A/en
Publication of JPH07328368A publication Critical patent/JPH07328368A/en
Pending legal-status Critical Current

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  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

PURPOSE:To carry out three treatments, namely the removal of dust, removal of odorous, harmful substances and sterilization simply by one air cleaner by storing a cassette-shaped filter section using activated carbon and a sterilization lamp in one casing. CONSTITUTION:An air cleaner main body is composed of a prefilter section 10, a fan section 11, a main filter section 12, a sterilization section 13, an air plenum section 14, an almost cylindrical casing 15 for storing the above sections and a decorative plate 17 set on the outer periphery of the casing 5. Granular activated carbon 36 is filled between upper and lower cotton-like filter layers 34 and 35 located on the upper and lower ends of the main filter section 12, and odor and harmful substances in the air compressively transferred by a fan 33 are suction removed by the granular active carbon 36 and cleaned. A net-shaped cylinder 38 is inserted into the main filter section 12, and a sterilization lamp 39 is set on the center of the cylinder to sterilize effectively the air passing through the sterilization section 13. Thus the air is cleaned sufficiently by a plurality of functions of the air cleaner.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は空気清浄器に関する。This invention relates to air purifiers.

【0002】[0002]

【従来の技術】従来、室内の空気を清浄化するための空
気清浄器として、フィルター部で塵埃を濾過除去する機
能を有するものや、活性炭で臭気や有害物質を吸着除去
する機能を有するものや、殺菌灯で空気中の細菌や黴の
胞子を殺菌する機能を有するものがあった。
2. Description of the Related Art Conventionally, as an air purifier for purifying indoor air, one having a function of filtering and removing dust by a filter portion and one having a function of adsorbing and removing odors and harmful substances by activated carbon, , There was one that had the function of sterilizing bacteria and mold spores in the air with a germicidal lamp.

【0003】[0003]

【発明が解決しようとする課題】ところが、上記空気清
浄器は、それぞれ単一の機能しか有していないために、
十分な空気清浄ができなかったり、充分に空気を清浄化
するためには3種類の空気清浄器を備えなければならな
かった。
However, since each of the above air purifiers has only a single function,
It was not possible to perform sufficient air cleaning, or three types of air purifiers had to be provided in order to sufficiently clean the air.

【0004】[0004]

【課題を解決するための手段】本発明では、活性炭を用
いたカセット状のフィルター部と殺菌灯とを具備し、こ
れらを1個のケーシング中に収納したことを特徴とする
空気清浄器を適用せんとするものである。
According to the present invention, an air purifier characterized by comprising a cassette-shaped filter portion using activated carbon and a germicidal lamp, which are housed in a single casing, is applied. It is something to do.

【0005】[0005]

【実施例】本発明の実施例を図面を参照して説明する。Embodiments of the present invention will be described with reference to the drawings.

【0006】図1は、本発明に係る空気清浄器Aを示し
ており、同空気清浄器Aは、ストッパー付キャスタ1…
によって移動および固定自在とした台座2の中央に伸縮
自在の脚体3を立設し、同脚体3の上端に、略円筒形状
の空気清浄器本体4を連設している。また、キャスター
1…上方の台座2中にウエイトを取付けて空気清浄器A
の安定をよくしている。
FIG. 1 shows an air purifier A according to the present invention. The air purifier A is a caster 1 with a stopper ...
An extensible leg 3 is erected at the center of a pedestal 2 that can be moved and fixed by, and a substantially cylindrical air purifier body 4 is connected to the upper end of the pedestal 3. Further, a weight is attached to the pedestal 2 above the casters 1 ...
The stability of is improved.

【0007】図1中、5は脚体3の伸縮位置を固定する
ための締付具、6はトランス7を収納するためのトラン
スケースであり、上下面に冷却のための通気孔8を形成
している。9はループ状の配線コードである。
In FIG. 1, 5 is a fastener for fixing the expansion / contraction position of the leg 3, 6 is a transformer case for housing the transformer 7, and ventilation holes 8 for cooling are formed on the upper and lower surfaces. is doing. Reference numeral 9 is a loop-shaped wiring cord.

【0008】空気清浄器本体4は、図2で示すように、
プレフィルター部10と、ファン部11と、メインフィルタ
ー部12と、殺菌部13と、空気吹出部14と、これらを収納
する略円筒形状のケーシング15と、同ケーシング15の外
周に上下Z型金具16,16 を介して取付けられた化粧板17
とで構成されている。
The air purifier body 4 is, as shown in FIG.
The pre-filter unit 10, the fan unit 11, the main filter unit 12, the sterilization unit 13, the air blowing unit 14, a substantially cylindrical casing 15 for accommodating them, and the upper and lower Z-shaped metal fittings on the outer periphery of the casing 15. Veneer 17 mounted via 16,16
It consists of and.

【0009】プレフィルター部10は、図2及び図3で示
すように、ケーシング15の下端部に小ネジ18を介して着
脱自在に取付けた略円筒形状のプレフィルターケース19
の内部に、2枚の有孔略円盤状のプレフィルター本体20
を、スペーサー21を介して所定間隔を保持して上下に配
設し、これらをプレフィルターケース19の下端部に形成
した折返し部22で下方から支持している。
As shown in FIGS. 2 and 3, the pre-filter portion 10 is a substantially cylindrical pre-filter case 19 which is detachably attached to the lower end portion of the casing 15 via machine screws 18.
Inside the inside, two perforated disc-shaped prefilter bodies 20
Are arranged above and below with a predetermined space therebetween via a spacer 21, and these are supported from below by a folded portion 22 formed at the lower end of the prefilter case 19.

【0010】プレフィルター本体20は、それぞれ活性炭
粒子23を分散させた上流側綿状濾過層24と下流側綿状濾
過層25との間に、表面に磁性物質26をコーティングした
棒状の永久磁石27を互いに所定間隔を保持して挟持さ
せ、この上下両面に網状体28,28 を積層し、この積層物
を、図4で示すように、糸状体29で縫い合わせることに
よってこれらを一体化し、これらの外周を内側方向に開
口した断面略コ字形状の枠体30で囲繞して上記外周部を
挟持することにより、一体のカセット状のプレフィルタ
ー本体20を構成している。
The prefilter body 20 has a rod-shaped permanent magnet 27 having a surface coated with a magnetic substance 26 between an upstream cotton-like filtration layer 24 and a downstream cotton-like filtration layer 25 in which activated carbon particles 23 are dispersed. Are held at a predetermined distance from each other, and the net-like bodies 28, 28 are laminated on both upper and lower surfaces thereof, and the laminate is sewn together with a thread-like body 29 as shown in FIG. An outer peripheral portion is surrounded by a frame body 30 having an approximately U-shaped cross-section that is opened inward, and the outer peripheral portion is sandwiched to form an integral cassette-shaped prefilter body 20.

【0011】上記構成によって、メインフィルター部12
に吸入される空気を、予め濾過仕手塵埃粒子を除去する
ことができ、また、永久磁石27によって、空気中に懸濁
した鉄粉や磁性微粒子等を効果的に吸着除去することが
できる。
With the above structure, the main filter section 12
The air sucked into the air can be previously filtered to remove dust particles, and the permanent magnet 27 can effectively adsorb and remove iron powder, magnetic fine particles and the like suspended in the air.

【0012】また、プレフィルター本体20の上下両面に
粘着性物質を塗布しておくと、各綿状濾過層24,25 が捕
集した塵埃等の微粒子が脱落したり、内部に吸入された
りするのを防止することができる。
If an adhesive substance is applied to both the upper and lower surfaces of the pre-filter body 20, fine particles such as dust collected by the cotton-like filtration layers 24 and 25 may fall off or be sucked into the inside. Can be prevented.

【0013】ファン部11は、図2で示すように、前記脚
体3の上端にモーター31を固設して、その出力軸32にフ
ァン33を嵌着して、モーター31によりファン33を回転さ
せて空気をメインフィルター部12方向に圧送するように
している。
As shown in FIG. 2, in the fan unit 11, a motor 31 is fixedly mounted on the upper end of the leg body 3, a fan 33 is fitted on an output shaft 32 of the motor 31, and the fan 31 is rotated by the motor 31. The air is sent under pressure toward the main filter section 12.

【0014】メインフィルター部12は、図2で示すよう
に、厚肉の略円筒形状であり、上下端部に配設した上下
綿状濾過層34,35 の間に粒状活性炭36を充填し、これら
の内外周面と上下端面にネット37を張設することによ
り、一体のカセット状に構成している。
As shown in FIG. 2, the main filter portion 12 has a thick, substantially cylindrical shape, and granular activated carbon 36 is filled between the upper and lower cotton-like filtration layers 34, 35 disposed at the upper and lower ends. A net 37 is stretched on the inner and outer peripheral surfaces and the upper and lower end surfaces to form an integrated cassette.

【0015】かかる構成によって、ファン33によって圧
送された空気中の臭気や有害物質を粒状活性炭36で吸着
除去して空気を清浄化することができる。また、上下綿
状濾過層34,35 によって、粒状活性炭36から出る活性炭
粉末が、メインフィルター部12から外部に漏出するのを
防止している。
With such a configuration, the odor and harmful substances in the air that have been pressure-fed by the fan 33 can be adsorbed and removed by the granular activated carbon 36 to clean the air. Further, the upper and lower cotton-like filtration layers 34, 35 prevent the activated carbon powder from the granular activated carbon 36 from leaking out from the main filter portion 12.

【0016】なお、上記、各綿状濾過層24,25,34,35
は、木綿、麻、パーム等の植物性繊維、真綿、獣毛、等
の動物性繊維、ポリエステル、ナイロン等の合成繊維、
石綿、グラスウール等の鉱物性繊維、メタルウール等の
金属性繊維等の繊維性物質をマット状に積層したものを
用いることができ、網状体28,28 には、粗く織った布、
プラスチック網、金網、パンチングメタルやエクスパン
デッドメタルなどを用いることができる。また、糸状体
29には、動植物性繊維や、合成樹脂糸、細い金属線条、
ガラス糸等を用いることができる。
The above-mentioned cotton-like filtration layers 24, 25, 34, 35
Are plant fibers such as cotton, hemp, palm, animal fibers such as cotton, animal hair, synthetic fibers such as polyester and nylon,
A fibrous substance such as mineral fibers such as asbestos and glass wool, and metallic fibers such as metal wool laminated in a mat can be used.
A plastic net, a wire net, punching metal, expanded metal, etc. can be used. Also filamentous
29 includes animal and vegetable fibers, synthetic resin threads, thin metal filaments,
Glass thread or the like can be used.

【0017】なお、上記各綿状濾過層24,25,34,35 、網
状体28,28 、糸状体29に鉱物性や金属性の不燃性素材を
用いることで、火災の危険を防止することができる。
It is to be noted that the danger of fire is prevented by using a mineral or metallic non-combustible material for each of the above cotton-like filtration layers 24, 25, 34, 35, reticulate bodies 28, 28, and filaments 29. You can

【0018】殺菌部13は、図2で示すように、上記メイ
ンフィルター部12の内部に、網製円筒38を挿入し、その
中央に紫外線を発生する殺菌灯39を配設しており、網製
円筒38の下端に中空略半球形状の上流側整流体40を連設
して、気流をスムーズにして空気抵抗を減少させてい
る。
As shown in FIG. 2, the sterilization unit 13 has a net-made cylinder 38 inserted inside the main filter unit 12, and a sterilization lamp 39 for generating ultraviolet rays is arranged at the center thereof. A hollow substantially hemispherical upstream rectifying body 40 is connected to the lower end of the cylinder 38 to smooth the air flow and reduce the air resistance.

【0019】このように、殺菌灯39の外周を所定間隔を
保持して網製円筒38で囲繞したことで、殺菌灯39の紫外
線が効果的に作用して、殺菌部13通渦中の空気を効率よ
く殺菌すると共に殺菌むらがなくなるので、殺菌効果を
高めることができる。
As described above, since the outer circumference of the sterilizing lamp 39 is surrounded by the net-shaped cylinder 38 while keeping a predetermined interval, the ultraviolet rays of the sterilizing lamp 39 act effectively to remove the air in the vortex of the sterilizing unit 13. The sterilization effect can be enhanced because the sterilization is efficiently performed and the sterilization unevenness is eliminated.

【0020】また、メインフィルター部12から空気が網
製円筒38中に流入するので、殺菌灯39を冷却して過熱を
防止することができる。
Further, since air flows from the main filter portion 12 into the net cylinder 38, the sterilizing lamp 39 can be cooled to prevent overheating.

【0021】更に、網製円筒38の下端に連設した上流側
整流体40によって、下方からの気流を整流するので抵抗
が減少し、ファン33の効率を高めることができる。
Furthermore, since the upstream side rectifying body 40 connected to the lower end of the net cylinder 38 rectifies the air flow from below, the resistance is reduced and the efficiency of the fan 33 can be increased.

【0022】空気吹出部14は、図2で示すように、ケー
シング15の上端部に小ネジ18を介して着脱自在に取付け
た下方開口の有蓋略円筒形状の空気吹出ケース41の外周
面に水平状のスリット42を多数形成し、その内面に内低
外高に傾斜した整流板43を多数配設し、天井壁44の下面
に頂点に丸みを持たせた逆円錐形状の下流側整流体45を
取付けている。
As shown in FIG. 2, the air blowing portion 14 is horizontally attached to the outer peripheral surface of a substantially cylindrical air blowing case 41 with a lower opening, which is detachably attached to the upper end portion of a casing 15 via a machine screw 18. -Shaped slits 42 are formed, a large number of straightening vanes 43 inclined inwardly and outwardly are arranged on the inner surface thereof, and a reverse cone-shaped downstream straightening body 45 having a rounded apex on the lower surface of the ceiling wall 44. Is installed.

【0023】かかる構成によって、メインフィルター部
12を通過した空気は、スリット42から斜め上方向に吹出
されるのであるが、メインフィルター部12からの空気
は、下向き略円錐形状の下流側整流体45で、下流側整流
体45の外周方向に均等に分散され、その後、整流板43と
によってスムーズにスリット42に誘導されるので、空気
抵抗と渦流の発生が少なくなり、したがって、送風の効
率を高め、かつ、吹出し音を小さくすることができる。
With this configuration, the main filter section
The air that has passed through 12 is blown out obliquely upward from the slit 42, but the air from the main filter portion 12 is the downstream side rectifying body 45 having a substantially downward cone shape, and the outer peripheral direction of the downstream side rectifying body 45. Are evenly distributed over the air flow, and then smoothly guided to the slits 42 by the straightening vanes 43, so that air resistance and eddy current are reduced, and therefore, the efficiency of air blowing can be increased and the blowing noise can be reduced. it can.

【0024】本発明の実施例は上記のように構成されて
おり、空気清浄器Aを室内に設置して、モーター31の駆
動によりファン33を回転させると、室内の空気が空気清
浄器本体4の下端開口部から吸入され、まず、プレフィ
ルター部10で空気中の塵埃や鉄粉が除去され、次いで、
メインフィルター部12で臭気や有害物質が吸着除去され
ると共に、殺菌部13からの紫外線で殺菌され、清浄な空
気になって空気吹出部14から外部に吹出されて室内を循
環し、次第に室内全体の空気を清浄化すことができる。
The embodiment of the present invention is constructed as described above, and when the air purifier A is installed in the room and the fan 33 is rotated by the drive of the motor 31, the air in the room becomes the air purifier body 4. Inhaled from the lower end opening of the, first the dust and iron powder in the air is removed by the pre-filter unit 10, then,
Odor and harmful substances are adsorbed and removed by the main filter section 12, and sterilized by the ultraviolet rays from the sterilization section 13 to become clean air, which is blown out from the air blowing section 14 to the outside and gradually circulates in the room. The air can be cleaned.

【0025】図5は、上記空気清浄器本体4を、天井50
の下面に吊り金具51,51 を介して横位置に取付けたもの
を示しており、プレフィルター部10と空気吹出部14と
に、それぞれ導風板52,53 を設けて、空気清浄器本体4
の一方から斜め下方の空気を吸い込み、他方から斜め下
方向に濾過した空気を吹出すようにしている。
FIG. 5 shows the main body 4 of the air purifier with a ceiling 50.
It is shown that it is attached to the lower surface of the air conditioner in a horizontal position via hanging metal fittings 51, 51. Air guide plates 52, 53 are provided in the pre-filter unit 10 and the air blowing unit 14, respectively, and the air purifier body 4 is shown.
The air obliquely downward is sucked in from one side and the air filtered obliquely downward is blown out from the other side.

【0026】かかる構成によって、天井50から離れた位
置から室内の空気を吸い込み、清浄化した空気を斜め下
方向に吹出して室内を循環させることにより、次第に室
内全体の空気を清浄化することができる。
With this structure, the air in the room is sucked in from a position away from the ceiling 50, and the purified air is blown out obliquely downward to circulate in the room, whereby the air in the entire room can be gradually cleaned. .

【0027】図6は、前記空気清浄器本体4の構成要素
の配置や形式を変更して、壁掛型空気清浄器Bを構成し
たものを示しており、2枚のプレフィルター本体61を矩
形板状に形成し、その上方に下から順に、シロッコファ
ン62、メインフィルター部12とその内部の殺菌部13、ポ
ストフィルター61' を具備した空気吹出部63を配設し、
これらの外周を略箱形状のケーシング64でカバーしてい
る。
FIG. 6 shows a structure in which the wall-mounted air purifier B is constructed by changing the arrangement and form of the components of the air purifier main body 4, and the two prefilter main bodies 61 are rectangular plates. Formed in the shape of, a sirocco fan 62, a main filter part 12, a sterilizing part 13 inside thereof, and an air blowing part 63 equipped with a post filter 61 ′ are arranged in that order from the bottom,
The outer circumference of these is covered with a substantially box-shaped casing 64.

【0028】また、空気吹出部63の内部には、プレフィ
ルター本体61と略同様に構成したポストフィルター61'
を内蔵しており、更に、プレフィルター本体61の上流側
とポストフィルター61' の下流側には、それぞれ導風板
65,66 が設けられている。
Further, inside the air blowing portion 63, a post filter 61 'having substantially the same structure as the pre-filter main body 61 is constructed.
In addition, there are baffles on the upstream side of the pre-filter body 61 and on the downstream side of the post-filter 61 '.
65,66 are provided.

【0029】かかる構成によって、壁67から離れた位置
から室内の空気を吸い込み、清浄化した空気を斜め下方
向に吹出して室内を循環させることにより、次第に室内
全体の空気を清浄化することができる。
With this structure, the air in the room is sucked in from a position away from the wall 67, and the purified air is blown out obliquely downward to circulate in the room, whereby the air in the entire room can be gradually cleaned. .

【0030】なお、本実施例では、活性炭を用いたカセ
ット状のフィルター部、殺菌灯、磁気フィルター部及び
綿状濾過層を組合わせて空気清浄器を構成したものにつ
いて説明しているが、上記の他に、静電気で空気中の浮
遊粒子を吸着除去する帯電フィルターを組合わせて用い
ることもできる。
In this embodiment, an air purifier is constructed by combining a cassette-shaped filter portion using activated carbon, a germicidal lamp, a magnetic filter portion and a cotton-like filtration layer. Besides, it is also possible to use in combination with a charging filter that adsorbs and removes airborne particles by static electricity.

【0031】[0031]

【発明の効果】本発明によれば、活性炭を用いたカセッ
ト状のフィルター部と殺菌灯とを具備し、これらを1個
のケーシング中に収納したことによって、1台の空気清
浄器で、塵埃の除去、臭気有害物質の除去、殺菌の3通
りの処理を行うことができる。
According to the present invention, a cassette-shaped filter section using activated carbon and a germicidal lamp are provided, and these are housed in a single casing, so that a single air purifier can be used to remove dust. It is possible to carry out three kinds of treatments: removal of odor, removal of odorous and harmful substances, and sterilization.

【0032】また、カセット状のフィルター部は交換が
容易であることから、維持管理が容易で経費も少なくて
すむ。
Further, since the cassette-shaped filter portion can be easily replaced, maintenance is easy and the cost is low.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る空気清浄器の一部切欠側面図。FIG. 1 is a partially cutaway side view of an air purifier according to the present invention.

【図2】空気清浄器の要部縦断面図。FIG. 2 is a longitudinal sectional view of a main part of the air purifier.

【図3】プレフィルター部の断面図。FIG. 3 is a sectional view of a pre-filter unit.

【図4】プレフィルター部の斜視図。FIG. 4 is a perspective view of a pre-filter unit.

【図5】横型空気清浄器の側面図。FIG. 5 is a side view of the horizontal air cleaner.

【図6】壁掛け型空気清浄器の断面側面図。FIG. 6 is a sectional side view of the wall-mounted air purifier.

【符号の説明】[Explanation of symbols]

A 空気清浄器 12 フィルター部 39 殺菌灯 A Air purifier 12 Filter 39 Sterilization lamp

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 活性炭を用いたカセット状のフィルター
部(12)と殺菌灯(39)とを具備し、これらを1個のケーシ
ング(15)中に収納したことを特徴とする空気清浄器。
1. An air purifier comprising a cassette-shaped filter portion (12) using activated carbon and a germicidal lamp (39), which are housed in a single casing (15).
JP6124086A 1994-06-06 1994-06-06 Air cleaner Pending JPH07328368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6124086A JPH07328368A (en) 1994-06-06 1994-06-06 Air cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6124086A JPH07328368A (en) 1994-06-06 1994-06-06 Air cleaner

Publications (1)

Publication Number Publication Date
JPH07328368A true JPH07328368A (en) 1995-12-19

Family

ID=14876586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6124086A Pending JPH07328368A (en) 1994-06-06 1994-06-06 Air cleaner

Country Status (1)

Country Link
JP (1) JPH07328368A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09180974A (en) * 1995-12-26 1997-07-11 Dainippon Screen Mfg Co Ltd Substrate treating apparatus with air filter
JP2009507337A (en) * 2005-09-02 2009-02-19 エルジー・ケム・リミテッド Cooling system for battery pack including double filter device
CN107023891A (en) * 2017-04-20 2017-08-08 冀国霞 A kind of lazaretto ward air cleaning unit
JP2021023880A (en) * 2019-08-05 2021-02-22 株式会社ニトリホールディングス Air cleaning device
JP2021167710A (en) * 2020-04-08 2021-10-21 那須 正和 Air purification unit and component thereof
WO2023171168A1 (en) * 2022-03-11 2023-09-14 株式会社デンソー Apparatus for removing magnetic foreign matter, brushless motor, and propeller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09180974A (en) * 1995-12-26 1997-07-11 Dainippon Screen Mfg Co Ltd Substrate treating apparatus with air filter
JP2009507337A (en) * 2005-09-02 2009-02-19 エルジー・ケム・リミテッド Cooling system for battery pack including double filter device
CN107023891A (en) * 2017-04-20 2017-08-08 冀国霞 A kind of lazaretto ward air cleaning unit
JP2021023880A (en) * 2019-08-05 2021-02-22 株式会社ニトリホールディングス Air cleaning device
JP2021167710A (en) * 2020-04-08 2021-10-21 那須 正和 Air purification unit and component thereof
WO2023171168A1 (en) * 2022-03-11 2023-09-14 株式会社デンソー Apparatus for removing magnetic foreign matter, brushless motor, and propeller

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