JPS621438Y2 - - Google Patents
Info
- Publication number
- JPS621438Y2 JPS621438Y2 JP1980148938U JP14893880U JPS621438Y2 JP S621438 Y2 JPS621438 Y2 JP S621438Y2 JP 1980148938 U JP1980148938 U JP 1980148938U JP 14893880 U JP14893880 U JP 14893880U JP S621438 Y2 JPS621438 Y2 JP S621438Y2
- Authority
- JP
- Japan
- Prior art keywords
- intermediate plate
- flange
- side plates
- fan casing
- flanges
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 10
- 238000007664 blowing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本案は空気調和機等に組み込まれる遠心型送風
機のフアンケーシングに関する。[Detailed description of the invention] (a) Industrial application field This invention relates to a fan casing for a centrifugal blower incorporated in an air conditioner or the like.
(ロ) 従来の技術
フアンケーシング内に多翼羽根車を収納する遠
心型送風機においては、羽根車の破損、軸受の注
油、部品交換その他の補修点検時にフアンケーシ
ングの側板を外して羽根車を取り出したり、第５
図に示す如く側板１に羽根車の外径よりも大径の
開口を設け、この開口に吸込口を有したノズル２
を着脱自在に取り付け、羽根車を取り出す時には
ノズル板２を取り外すようにしていた。(b) Conventional technology In a centrifugal blower that houses a multi-blade impeller in a fan casing, the side plate of the fan casing must be removed and the impeller removed when inspecting the impeller for damage, bearing lubrication, parts replacement, and other repairs. Or, the fifth
As shown in the figure, an opening with a diameter larger than the outer diameter of the impeller is provided in the side plate 1, and a nozzle 2 has a suction port in this opening.
is detachably attached, and the nozzle plate 2 is removed when the impeller is taken out.
しかしながら、かかる前者の構造では側板の周
縁が渦巻形状となつているためにエアーが漏れな
いように側板を取り付けるのは大変であつた。
又、後者の構造ではノズル２を別部品として用意
しなければならないため製造コストが高くつく欠
点を有していた。 However, in the former structure, since the peripheral edge of the side plate has a spiral shape, it is difficult to attach the side plate to prevent air from leaking.
Furthermore, the latter structure has the disadvantage that the nozzle 2 must be prepared as a separate component, resulting in high manufacturing costs.
このため、実公昭52−3682号公報で提示されて
いるように、フアンケーシングを合成樹脂で一体
成形すると共に周壁板の渦巻部を一部開いてこの
開口部よりフアンを取り出すようにしたものがあ
つたが、この開口部を塞ぐ開閉周壁板はこの両側
縁を側壁板部に単に突き当てるだけであるためエ
アーシールが充分でなく、且つ合成樹脂による一
体成形であるため大型のフアンケーシングには金
型費用がコストアツプすると共に強度的にもたな
くなるのであまり適さない、等の問題点を有して
いた。 For this reason, as proposed in Japanese Utility Model Publication No. 52-3682, the fan casing is integrally molded from synthetic resin, and the spiral part of the surrounding wall plate is partially opened so that the fan can be taken out from this opening. However, since the opening/closing peripheral wall plate that closes this opening simply abuts both side edges against the side wall plate, the air seal is not sufficient, and since it is integrally molded from synthetic resin, it is not suitable for large fan casings. This has had problems such as increased mold costs and lack of strength, making it not very suitable.
又、実公昭47−25042号公報で提示されている
ように、渦型フアンケーシングを羽根車の軸方向
に沿つて二分割してフアンを取り出すようにした
ものがあつたが、分割された一方の半体には吐出
口が一体に形成されると共に吸入孔の片半分が形
成され、且つ他方の半体には吸入孔の残り半分が
形成される、きわめて複雑な金型形状を必要とす
るため、コストがアツプすることは避けられなか
つた。 In addition, as proposed in Japanese Utility Model Publication No. 47-25042, there was a device in which the vortex type fan casing was divided into two along the axial direction of the impeller so that the fan could be taken out. The discharge port is integrally formed in one half of the mold, and one half of the suction hole is formed in the other half, and the other half of the suction hole is formed in the other half, which requires an extremely complicated mold shape. Therefore, it was inevitable that costs would rise.
(ハ) 考案が解決しようとする問題点
本案は合成樹脂製フアンケーシングでは製造コ
ストが高くつき、且つ強度的にも弱い問題点があ
り、しかも、実公昭52−3682号公報で提示された
フアンケーシングではフアンとの間隙寸法に精度
が要求されるノーズ部も一緒に取り外されるため
送風性能に悪影響を及ぼす問題点があることに着
目し、これら問題点を解決すると共にエアー漏れ
がない板金製フアンケーシングを提供するように
したものである。(c) Problems that the invention seeks to solve This invention has the problems that synthetic resin fan casings are expensive to manufacture and are weak in strength, and moreover, it is difficult to solve the problem of the fan presented in Publication of Utility Model Publication No. 52-3682. We focused on the fact that the nose section of the casing, which requires precision in the gap between the fan and the fan, has a negative impact on air blowing performance. It is designed to provide a casing.
(ニ) 問題点を解決するための手段
本案は遠心型送風機のフアンケーシングを板金
製の一対の側板とこの側板に跨がつて取り付けら
れる板金製の中間板とより構成するにあたり、側
板には中間板の両側縁部が面接触するフランジを
設けると共に、中間板の両側縁部にフランジが嵌
まり合う切欠口を設け、この切欠口を境に、中間
板をフランジの内側面に沿つて固着される渦巻部
と、フランジの外側面に沿う平担な着脱部とで構
成するようにしたものである。(d) Means for solving the problem In this proposal, the fan casing of a centrifugal blower is constructed of a pair of side plates made of sheet metal and an intermediate plate made of sheet metal that is attached to span these side plates. In addition to providing flanges with which both side edges of the plate are in surface contact, cutouts into which the flanges fit are provided on both side edges of the intermediate plate, and the intermediate plate is fixed along the inner surface of the flange with this cutout as a border. The flange is constructed of a spiral part and a flat attachment/detachment part along the outer surface of the flange.
(ホ) 作用
フランジが一体形成された左右一対の板金製側
板と長方形状の板金製中間板とを一組用意し、中
間板の渦巻部をフランジの内側面に沿つて渦巻状
に屈曲させてスポツト溶接等により固着した後、
中間板をフランジと交叉させてフランジの内側よ
り外側へ導出させ、然る後、着脱部をフランジの
外側面に平担形状に沿わせて螺子止めすると、フ
アンケーシングは完成される。(E) Effect A pair of left and right side plates made of sheet metal with integrally formed flanges and a rectangular intermediate plate made of sheet metal are prepared, and the spiral portion of the intermediate plate is bent in a spiral shape along the inner surface of the flange. After being fixed by spot welding etc.,
The fan casing is completed by making the intermediate plate intersect with the flange and leading it out from the inside of the flange, and then screwing the attachment/detachment part along the outer surface of the flange in a flat shape.
かかる組み立てにより、渦巻部の両側縁部は渦
巻状に屈曲される際に中間板自体がもつ弾性復元
力が働いてフランジの内側面に面接触状態で圧接
されると共に着脱部は弾性復元力が働かない平担
形状のもとでフランジの外側面に面接触状態で接
合されるため、フランジと中間板の両側縁部との
間からエアーが漏れることはない。 With this assembly, when the both side edges of the spiral part are bent into a spiral shape, the elastic restoring force of the intermediate plate itself acts and is brought into pressure contact with the inner surface of the flange in a surface contact state, and the attachment/detachment part is also subjected to the elastic restoring force. Since it is joined to the outer surface of the flange in surface contact with the non-working flat shape, air will not leak from between the flange and both side edges of the intermediate plate.
多翼羽根車を補修点検する際には中間板の着脱
部を外して開くことにより羽根車が取り出せる。 When repairing or inspecting a multi-blade impeller, the impeller can be taken out by removing and opening the removable part of the intermediate plate.
(ヘ) 実施例
本案の一実施例を第１図乃至第４図に基づいて
説明すると、３は板金製の一対の側板４，４と、
この両側板に跨がつて取り付けられる板金製の中
間板７とより構成される遠心型送風機のフアンケ
ーシングで、両側板４，４には夫々吸込口５，５
（ただし、片吸込型の場合、吸込口は一方のみと
する）を設けると共に、この両側板４，４の夫々
の端縁１１，１１と中間板７の両端縁１２，１２
とで吐出口１３を形成するようにしたものであ
る。(F) Embodiment An embodiment of the present invention will be explained based on FIGS. 1 to 4. 3 includes a pair of side plates 4, 4 made of sheet metal;
A fan casing of a centrifugal blower is composed of an intermediate plate 7 made of sheet metal that is attached to span these side plates, and the side plates 4, 4 have suction ports 5, 5, respectively.
(However, in the case of a single suction type, the suction port is only on one side.)
The ejection port 13 is formed by these.
そして、両側板４，４には夫々互いに向き合う
ように張り出されるフランジ６，６が設けられて
いると共に、中間板７の両側縁部１４，１４にフ
ランジ６，６の交叉部１５が嵌まり合う切欠口８
が設けられており、この切欠口８を境に、中間板
７がフランジ６，６の内側面１６に沿つて固着さ
れる渦巻部７ｂと、フランジ６，６の外側面１７
に沿つて着脱自在に取り付けられる平担状の着脱
部７ａとで構成されている。 Flanges 6, 6 are provided on both side plates 4, 4, respectively, and extend so as to face each other, and intersecting portions 15 of the flanges 6, 6 are fitted into both side edges 14, 14 of intermediate plate 7. Matching notch 8
A spiral portion 7b, to which the intermediate plate 7 is fixed along the inner surfaces 16 of the flanges 6, 6, and an outer surface 17 of the flanges 6, 6 are provided, with this notch 8 as a border.
It is comprised of a flat-shaped attachment/detachment part 7a that can be detachably attached along the ridge.
尚、中間板７の着脱部７ａにはフランジ６，６
の螺子穴１０と螺子１８止めするための穴９が設
けられている。 Note that flanges 6, 6 are provided on the detachable portion 7a of the intermediate plate 7.
A screw hole 10 and a hole 9 for securing a screw 18 are provided.
次にフアンケーシング３の組み立て作業を説明
する。予めフランジ６，６が一体形成された左右
一対の板金製側板４，４と第３図に示す長方形状
の板金製中間板７とを一組用意し、中間板７の渦
巻部７ｂをフランジ６，６の内側面１６に沿つて
渦巻状に屈曲させてスポット溶接等により固着す
る。この時、渦巻部７ｂの両側縁部１４，１４は
渦巻状に屈曲される際に中間板７自体がもつ弾性
復元力が働いてフランジ６，６の内側面１６に面
接触状態で圧接される。 Next, the assembly work of the fan casing 3 will be explained. A pair of left and right side plates 4, 4 made of sheet metal on which flanges 6, 6 are integrally formed and a rectangular intermediate plate 7 made of sheet metal shown in FIG. , 6 in a spiral shape and fixed by spot welding or the like. At this time, the both side edges 14, 14 of the spiral portion 7b are pressed into surface contact with the inner surfaces 16 of the flanges 6, 6 due to the elastic restoring force of the intermediate plate 7 itself when bent into a spiral shape. .
そして、中間板７を切欠口８でフランジ６，６
と交叉させてフランジ６，６の内側より外側へ導
出させた後、着脱部７ａをフランジ６，６の外側
面１７に沿わせて螺子１８止めする。この時、着
脱部７ａは弾性復元力が働かない平担な素材形状
のもとでフランジ６，６の外側面１７に面接触状
態で接合される。 Then, attach the intermediate plate 7 to the flanges 6, 6 with the notch 8.
After intersecting with the inner side of the flanges 6, 6 and leading out from the inside thereof, the detachable part 7a is fitted along the outer surface 17 of the flanges 6, 6 and fixed with the screw 18. At this time, the attachment/detachment part 7a is joined to the outer surface 17 of the flanges 6, 6 in surface contact with the flat material shape in which no elastic restoring force acts.
このようにして、フアンケーシング３は完成さ
れるため、フランジ６，６と中間板７の両側縁部
１４，１４との間から送風運転時にエアーが漏れ
ることはなく、且つ、多翼羽根車（図示しない）
の組み込みや補修点検の際の取り外し時には螺子
１８を外して着脱部７ａを第４図に示す如く交叉
部８，１５を中心にして開くことにより、この開
口から羽根車の組み込みと取り外しが行なえる。 Since the fan casing 3 is completed in this way, air will not leak from between the flanges 6, 6 and both side edges 14, 14 of the intermediate plate 7 during air blowing operation, and the multi-blade impeller ( (not shown)
When assembling the impeller or removing it for repair and inspection, the screw 18 is removed and the removable part 7a is opened centering around the intersection parts 8 and 15 as shown in FIG. 4, so that the impeller can be installed and removed from this opening. .
しかも、吸込口５，５から吸い込まれたエアー
がノーズ部Ｎを起点として徐々に圧縮されながら
フアンケーシング３内を流れた後、吐出口１３か
ら送出される遠心型送風機において、ノーズ部Ｎ
と多翼羽根車との間隙の寸法に精度が要求される
ことは衆知のとおりであり、本案はこの点に留意
し羽根車の取り出し時にノーズ部Ｎを取り外さな
いようにして多翼羽根車との間隙寸法に狂いが生
じないようにしている。 Moreover, in a centrifugal blower in which the air sucked from the suction ports 5, 5 is gradually compressed starting from the nose portion N and flows through the fan casing 3, the air is sent out from the discharge port 13.
It is well known that precision is required in the dimension of the gap between the multi-blade impeller and the multi-blade impeller. This is to prevent deviations in the gap dimensions.
(ト) 考案の効果
本案によれば、一対の側板と中間板とからなる
３部品で板金製フアンケーシングを形成するよう
にしたので、最小部品点数で強度のあるフアンケ
ーシングを安価に且つ容易に製作することができ
ると共に、中間板の渦巻部は渦巻状に屈曲される
際に中間板自体がもつ弾性復元力が働いて両側板
のフランジの内側面に面接触状態で圧接され、且
つ多翼羽根車の組み込みや取り出し時に外方へ開
かれる中間板の着脱部は弾性復元力が働かない平
担な形状のもとでフランジの外側面に面接触状態
で接合されるため、フランジと中間板の両側縁部
との間からエアーが漏れるのを防止することがで
きる。(G) Effects of the invention According to this invention, a fan casing made of sheet metal is formed from three parts consisting of a pair of side plates and an intermediate plate, so that a strong fan casing with a minimum number of parts can be produced inexpensively and easily. In addition, when the spiral portion of the intermediate plate is bent into a spiral shape, the elastic restoring force of the intermediate plate itself acts and is pressed into contact with the inner surfaces of the flanges of both side plates in a state of surface contact. The attachment/detachment part of the intermediate plate, which opens outward when installing or removing the impeller, has a flat shape that does not exert any elastic restoring force, and is joined to the outer surface of the flange in surface contact. It is possible to prevent air from leaking between the two side edges.
しかも、多翼羽根車の組み込みや取り出し時に
ノーズ部は取り外されないため、多翼羽根車とノ
ーズ部との間隙の寸法に狂いが生じることはな
く、送風性能を高く維持することができる。 Furthermore, since the nose portion is not removed when the multi-blade impeller is assembled or removed, the gap between the multi-blade impeller and the nose portion does not vary in size, and the air blowing performance can be maintained at a high level.
又、中間板と交叉させるための切欠口を中間板
に設け、フランジには設けないようにしたので、
フランジの強度が低下することはなく、且つ切欠
口を中間板の成形時に同時に形成することがで
き、製造工程を少なくすることができる。 In addition, a notch was provided in the intermediate plate to intersect with the intermediate plate, but not in the flange.
The strength of the flange does not decrease, and the notch can be formed at the same time as the intermediate plate is formed, so that the number of manufacturing steps can be reduced.
第１図乃至第４図は本案の一実施例を示すもの
で、第１図はフアンケーシングの斜視図、第２図
は第１図の−線断面図、第３図は中間板の展
開図、第４図は中間板の着脱部を外したフアンケ
ーシングの斜視図、第５図は従来のフアンケーシ
ングの斜視図である。
３……フアンケーシング、４……側板、５……
吸込口、６……フランジ、７……中間板、７ａ…
…着脱部、７ｂ……渦巻部、８……切欠部、１３
……吐出口、１６……フランジの内側面、１７…
…フランジの外側面。
Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a perspective view of the fan casing, Figure 2 is a cross-sectional view taken along the - line in Figure 1, and Figure 3 is a developed view of the intermediate plate. , FIG. 4 is a perspective view of the fan casing with the attachment/detachment part of the intermediate plate removed, and FIG. 5 is a perspective view of a conventional fan casing. 3...Fan casing, 4...Side plate, 5...
Suction port, 6... flange, 7... intermediate plate, 7a...
...Detachable part, 7b... Spiral part, 8... Notch part, 13
...Discharge port, 16...Inner surface of flange, 17...
...outer surface of the flange.
Claims (1)
れる中間板とより構成され、側板の夫々の端縁と
中間板の両端縁とで吐出口が形成され、且つ側板
の少なくとも一方に吸込口が設けられている遠心
型送風機のフアンケーシングにおいて、これら板
を板金製にし、且つ側板に夫々互いに向き合うよ
うに張り出されるフランジが設けられると共に、
中間板の両側縁部にフランジが嵌まり合う切欠口
が設けられ、中間板はこの切欠口を境にフランジ
の内側面に沿う渦巻部と、フランジの外側面に沿
う平坦な着脱部とで構成されていることを特徴と
する遠心型送風機のフアンケーシング。 Consisting of a pair of side plates and an intermediate plate attached to span the side plates, a discharge port is formed by each edge of the side plates and both edges of the intermediate plate, and a suction port is provided in at least one of the side plates. In the fan casing of a centrifugal blower, these plates are made of sheet metal, and the side plates are provided with flanges that extend so as to face each other,
A notch into which the flange fits is provided on both edges of the intermediate plate, and the intermediate plate consists of a spiral part that runs along the inner surface of the flange with this notch as a boundary, and a flat attachment/detachment part that runs along the outer surface of the flange. A fan casing for a centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980148938U JPS621438Y2 (en) | 1980-10-17 | 1980-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980148938U JPS621438Y2 (en) | 1980-10-17 | 1980-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5771796U JPS5771796U (en) | 1982-05-01 |
| JPS621438Y2 true JPS621438Y2 (en) | 1987-01-13 |
Family
ID=29508345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980148938U Expired JPS621438Y2 (en) | 1980-10-17 | 1980-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS621438Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4725042U (en) * | 1971-04-09 | 1972-11-21 | ||
| JPS523682U (en) * | 1975-06-24 | 1977-01-11 |
-
1980
- 1980-10-17 JP JP1980148938U patent/JPS621438Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4725042U (en) * | 1971-04-09 | 1972-11-21 | ||
| JPS523682U (en) * | 1975-06-24 | 1977-01-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5771796U (en) | 1982-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102212652B1 (en) | Centrifugal fan | |
| KR100713996B1 (en) | Blade wheel for centrifugal blower and centrifugal blower with the same | |
| US8732948B2 (en) | Method of manufacturing impeller for centrifugal blower | |
| EP3650705B1 (en) | Impeller of centrifugal fan | |
| JP3092554B2 (en) | Centrifugal blower, method for manufacturing the same, and air conditioner equipped with the centrifugal blower | |
| DE112017003760T5 (en) | CENTRIFUGAL | |
| JP2018135876A (en) | Centrifugal blower | |
| JPS621438Y2 (en) | ||
| JP3695294B2 (en) | Cross flow fan | |
| WO2019058573A1 (en) | Sirocco fan, blowing device, and air conditioner | |
| WO2017126444A1 (en) | Centrifugal fan impeller | |
| JPS6124718Y2 (en) | ||
| JPH1082533A (en) | Air conditioner | |
| JPH0353036Y2 (en) | ||
| JP2740694B2 (en) | Electric blower | |
| JPS6087397U (en) | multi-blade fan device | |
| JPS6122178Y2 (en) | ||
| JPS587235Y2 (en) | Air conditioner outlet insulation device | |
| JPH0344570Y2 (en) | ||
| WO2018151013A1 (en) | Centrifugal blower | |
| JPS6339439Y2 (en) | ||
| JPS6146494A (en) | Motor fan | |
| JPS6233999Y2 (en) | ||
| JPS6199038A (en) | Blower of air conditioner | |
| JP2603969Y2 (en) | Multi-blade fan casing |