JP3549249B2 - Centrifugal fan spiral casing - Google Patents

Centrifugal fan spiral casing Download PDF

Info

Publication number
JP3549249B2
JP3549249B2 JP12245094A JP12245094A JP3549249B2 JP 3549249 B2 JP3549249 B2 JP 3549249B2 JP 12245094 A JP12245094 A JP 12245094A JP 12245094 A JP12245094 A JP 12245094A JP 3549249 B2 JP3549249 B2 JP 3549249B2
Authority
JP
Japan
Prior art keywords
adapter
mounting surfaces
mounting surface
scroll plate
spiral casing
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 - Fee Related
Application number
JP12245094A
Other languages
Japanese (ja)
Other versions
JPH07332295A (en
Inventor
弘成 小方
Original Assignee
松下エコシステムズ株式会社
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 松下エコシステムズ株式会社 filed Critical 松下エコシステムズ株式会社
Priority to JP12245094A priority Critical patent/JP3549249B2/en
Publication of JPH07332295A publication Critical patent/JPH07332295A/en
Application granted granted Critical
Publication of JP3549249B2 publication Critical patent/JP3549249B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

【０００１】
【産業上の利用分野】
本発明は、空調および換気送風などに使用される遠心ファンの渦巻ケーシングに関する。
【０００２】
【従来の技術】
従来、この種の遠心ファンの渦巻ケーシングは、図８に示すように、スクロール板１０１と、２つの側板１０２が溶接やシーム加工などで固定されており、吹出口１０３には、ダクトを接続するためのアダプタ１０４が取り付けられている構成であった。
【０００３】
上記構成において、アダプタ１０４は施工性からねじ１０１などで着脱できるようになっており、吹出口１０３とアダプタ１０４の間は気密性が保たれない。ねじ１０５の本数を多くすると良いが、施工性が悪くなる。このため、吹出口１０３とアダプタ１０４の間にはパッキン１０６が貼り付けられ、送風時に空気もれなどがないようにされていることが広く知られている。
【０００４】
【発明が解決しようとする課題】
このような従来の遠心ファンの渦巻ケーシングでは、吹出口１０４とアダプタ１０５の接合面１０６の気密性を保つためにパッキン１０６が必要となり、部品数が増加することから、組立工数および材料費が増加するという問題があった。
【０００５】
本発明は上記課題を解決するもので、組立工数および材料費が増加しないで吹出口１０４とアダプタ１０５の接合面１０６の気密性を保つ遠心ファンの渦巻ケーシングを提供することを目的とする。
【０００６】
【課題を解決するための手段】
本発明の遠心ファンの渦巻ケーシングは上記目的を達成するために、第１の手段は、スクロール板と２つの側板が、スクロール板に設けられたつめを側板に設けられたつめ幅より幅の広いつめ穴に挿入し、折り曲げることで連結され、吹出口にダクトなどを接続するためのアダプタを取り付ける取付面として上下がスクロール板、左右が側板をアダプタ側取付面と平行となるように折り曲げることによって形成され、アダプタが側板の左右の取付面のみに固定されている構成とする。
【０００７】
また、第２の手段は、第１の手段のアダプタを取り付ける取付面を、上下がスクロール板を吹出口外側にむかってアダプタ側に傾斜するように折り曲げ、左右が側板をアダプタ側取付面となるように折り曲げることによって形成されている構成とする。
【０００８】
また、第３の手段は、第１の手段のアダプタを取り付ける取付面として上下がスクロール板を左右の取付面と平行に折り曲げ、スクロール板による上下の取付面と接するアダプタ側取付面を吹出口外側にむかってスクロール板による取付面側に傾斜するように形成されている構成とする。
【０００９】
また、第４手段は、第１の手段のアダプタを取り付ける取付面を、左右が側板を吹出口外側にむかってアダプタ側に傾斜するように折り曲げ、上下がスクロール板をアダプタ取付面と平行となるように折り曲げることによって形成されている構成とする。
【００１０】
また、第５の手段は、第１の手段のアダプタを取り付ける取付面として左右が側板を上下の取付面と平行に折り曲げ、側板による左右の取付面と接するアダプタ側取付面を吹出口外側にむかって側板による左右の取付面側に傾斜するように形成されている構成とする。
【００１１】
【作用】
本発明は上記した第１の手段の構成により、スクロール板に備えられたつめがつめ幅より幅の広いつめ穴に挿入されて連結されているため、スクロール板が平坦な形状に伸びようとする弾性力によって、スクロール板による上下の取付面が側板による左右の取付面よりアダプタ側に突出する。アダプタを側板による取付面にねじなどで固定されると、スクロール板による取付面は、アダプタ側取付面スクロール板の弾性力によって密着し、気密性を保つことができる。
【００１２】
また、第２の手段の構成により、第１の手段でスクロール板による取付面が、アダプタ側取付面にスクロール板の弾性力によって密着するとき、スクロール板による取付面が傾斜してアダプタ側取付面に接触していくときの弾性力も加わるため、気密性を保つことができる。
【００１３】
また、第３の手段の構成により、第１の手段でスクロール板による取付面が、アダプタ側取付面にスクロール板の弾性力によって密着するとき、アダプタ側取付面が傾斜してスクロール板による取付面に接触していくときの弾性力も加わるため、気密性を保つことができる。
【００１４】
また、第４の手段の構成により、第１の手段でスクロール板による取付面が、アダプタ側取付面にスクロール板の弾性力によって密着するとき、側板による取付面が傾斜してアダプタ側取付面に接触していくときの弾性力も加わるため、気密性を保つことができる。
【００１５】
また、第５の手段の構成により、第１の手段でスクロール板による取付面が、アダプタ側取付面にスクロール板の弾性力によって密着するとき、アダプタ側取付面が傾斜して側板による取付面に接触していくときの弾性力も加わるため、気密性を保つことができる。
【００１６】
【実施例】
以下、本発明の第１実施例について、図１，図２および図３を参照しながら説明する。なお、従来例と同一箇所には同一番号を付し、詳細な説明は省略する。
【００１７】
図に示すように、曲げに対して復元しようとする弾性力を持つ金属からできたスクロール板１０１の側辺には側板１０２との連結のためのつめ１が複数個設けられ、２つの側板１０２には、スクロール板１０１に備えられたつめ１を挿入するためにつめ１の幅より広い幅のつめ穴２がつめ１と同数だけ設けられている。スクロール板１０１は渦巻形状を形成すべく曲げられ、複数個のつめ１を相対する複数個のつめ穴２に挿入したのちに折り曲げられ、スクロール板１０１と２つの側板１０２は連結される。また、吹出口１０３には、アダプタ１０４を取り付けるために上下の取付面３がスクロール板１０１、左右の取付面４が側板１０２を上下のアダプタ側取付面５および左右のアダプタ側取付面６と平行となるように折り曲げることによって形成されている。
【００１８】
このとき、スクロール板１０１には、曲げに対して復元しようとする弾性力が作用し、つめ１の幅よりつめ穴２の幅が広いことから、スクロール板１０１はつめ穴２のなかをつめ１が移動できる距離だけ平坦に戻るように変形し、その結果上下の取付面３は左右の取付面４よりアダプタ１０４側に突出することになる。アダプタ１０４を取り付けるためにねじ１０５を締めこんでゆくと、上下のアダプタ側取付面５はアダプタ１０４側に突出している上下の取付面３に接触する。さらに、ねじ１０５を締めこんでゆくと上下の取付面３はアダプタ１０４に押されながら密着し、スクロール板１０１はつめ穴２のなかをつめ１が移動できる距離だけ変形する。左右の取付面４と左右のアダプタ側取付面６が密着したとき、上下の取付面３と上下のアダプタ側取付面５は弾性力で密着しており、気密性が保たれ空気もれは発生しない。
【００１９】
このように本発明の第１実施例の遠心ファンの渦巻ケーシングによれば、スクロール板１０１の弾性力によって吹出口１０３とアダプタ１０４の間の気密性を保つことができる。
【００２０】
つぎに、本発明の第２実施例について、図５を参照しながら説明する。なお、第１実施例と同一箇所には同一番号を付し、詳細な説明は省略する。
【００２１】
図に示すように、アダプタ１０４を取り付けるために、上下の取付面３がスクロール板１０１を吹出口１０３外側にむかってアダプタ１０４側に傾斜するように折り曲げ、左右の取付面４が側板１０２を左右のアダプタ側取付面６と平行となるように折り曲げることによって形成されている。
【００２２】
アダプタ１０４を取り付けるためにねじ１０５を締めこんでゆくと、上下のアダプタ側取付面７はアダプタ１０４側に突出している上下の取付面３の端辺７に接触する。さらに、ねじ１０５を締めこんでゆくと上下の取付面３はアダプタ１０４に押され、アダプタ側取付面５と平行になるように変形して密着し、スクロール板１０１はつめ穴２のなかをつめ１が移動できる距離だけ変形する。左右の取付面４と左右のアダプタ側取付面６が密着したとき、上下の取付面３と上下のアダプタ側取付面５は弾性力で密着しており、気密性が保たれ空気もれは発生しない。
【００２３】
このように本発明の第２実施例の遠心ファンの渦巻ケーシングによれば、スクロール板１０１と上下の取付面３の弾性力によって吹出口１０３とアダプタ１０４の間の気密性を保つことができる。
【００２４】
つぎに、本発明の第３実施例について、図６を参照しながら説明する。なお、第１実施例と同一箇所には同一番号を付し、詳細な説明は省略する。
【００２５】
図に示すように、アダプタ１０４を取り付けるために、上下の取付面３がスクロール板１０１を、左右の取付面４が側板１０２を左右のアダプタ側取付面６と平行となるように折り曲げ、上下のアダプタ側取付面５が吹出口１０３外側にむかって上下の取付面３側に傾斜するように形成されている。
【００２６】
アダプタ１０４を取り付けるためにねじ１０５を締めこんでゆくと、上下のアダプタ側取付面５はアダプタ１０４側に突出している上下の取付面３の端辺７に接触する。さらに、ねじ１０５を締めこんでゆくと上下のアダプタ側取付面５は上下の取付面３に押され、上下の取付面３と平行になるように変形して密着し、スクロール板１０１はつめ穴２のなかをつめ１が移動できる距離だけ変形する。左右の取付面４と左右のアダプタ側取付面６が密着したとき、上下の取付面３と上下のアダプタ側取付面５は弾性力で密着しており、気密性が保たれ空気もれは発生しない。
【００２７】
このように本発明の第３実施例の遠心ファンの渦巻ケーシングによれば、スクロール板１０１と上下のアダプタ側取付面５の弾性力によって吹出口１０３とアダプタ１０４の間の気密性を保つことができる。
【００２８】
つぎに、本発明の第４実施例について、図６を参照しながら説明する。なお、第１実施例と同一箇所には同一番号を付し、詳細な説明は省略する。
【００２９】
図に示すように、アダプタ１０４を取り付けるために、左右の取付面４が側板１０２を吹出口１０３外側にむかってアダプタ１０４側に傾斜するように折り曲げ、上下の取付面３がスクロール板１０１を上下のアダプタ側取付面５と平行となるように折り曲げることによって形成されている。
【００３０】
アダプタ１０４を取り付けるためにねじ１０５を締めこんでゆくと、左右のアダプタ側取付面６と左右の取付面４の端辺８が接触する。さらに、ねじ１０５を締めこんでゆくと左右の取付面４はアダプタ１０４に押され、左右のアダプタ側取付面６と平行になるように変形していく。また、上下のアダプタ側取付面５はアダプタ１０４側に突出している上下の取付面３に接触し、上下の取付面３はアダプタ１０４に押されながら密着し、スクロール板１０１はつめ穴２のなかをつめ１が移動できる距離だけ変形する。左右の取付面４と左右のアダプタ側取付面６が完全に密着したとき、上下の取付面３と上下のアダプタ側取付面５は弾性力で密着しており、気密性が保たれ空気もれは発生しない。
【００３１】
このように本発明の第４実施例の遠心ファンの渦巻ケーシングによれば、スクロール板１０１と左右の取付面４の弾性力によって吹出口１０３とアダプタ１０４の間の気密性を保つことができる。
【００３２】
つぎに、本発明の第５実施例について、図７を参照しながら説明する。なお、第１実施例と同一箇所には同一番号を付し、詳細な説明は省略する。
【００３３】
図に示すように、アダプタ１０４を取り付けるために、上下の取付面３がスクロール板１０１を、左右の取付面４が側板１０２を左右のアダプタ側取付面６と平行となるように折り曲げ、左右のアダプタ側取付面６が吹出口１０３外側にむかって左右の取付面４側に傾斜するように形成されている。
【００３４】
アダプタ１０４を取り付けるためにねじ１０５を締めこんでゆくと、左右のアダプタ側取付面６と左右の取付面４の端辺８が接触する。さらに、ねじ１０５を締めこんでゆくと左右のアダプタ側取付面６は左右の取付面４に押され、左右の取付面４と平行になるように変形していく。また、上下のアダプタ側取付面５はアダプタ１０４側に突出している上下の取付面３に接触し、上下の取付面３はアダプタ１０４に押されながら密着し、スクロール板１０１はつめ穴２のなかをつめ１が移動できる距離だけ変形する。左右の取付面４と左右のアダプタ側取付面６が完全に密着したとき、上下の取付面３と上下のアダプタ側取付面５は弾性力で密着しており、気密性が保たれ空気もれは発生しない。
【００３５】
このように本発明の第４実施例の遠心ファンの渦巻ケーシングによれば、スクロール板１０１と左右のアダプタ側取付面６の弾性力によって吹出口１０３とアダプタ１０４の間の気密性を保つことができる。
【００３６】
【発明の効果】
以上の実施例から明らかなように、本発明によればスクロール板の弾性力によって、吹出口とアダプタの間の気密性を保つため、パッキンなどが不要となり組立工数および材料費が増加しないで、気密性を保ち空気もれが発生しない遠心ファンの渦巻ケーシングが提供できる。
【図面の簡単な説明】
【図１】本発明の第１実施例の遠心ファンの渦巻ケーシングの側面図
【図２】同つめの取り付け詳細図
【図３】同吹出口部へのアダプタ取り付け詳細図
【図４】本発明の第２実施例の遠心ファンの渦巻ケーシングの吹出口部へのアダプタ取り付け詳細図
【図５】本発明の第３実施例の遠心ファンの渦巻ケーシングの吹出口部へのアダプタ取り付け詳細図
【図６】本発明の第４実施例の遠心ファンの渦巻ケーシングの吹出口部へのアダプタ取り付け詳細図
【図７】本発明の第５実施例の遠心ファンの渦巻ケーシングの吹出口部へのアダプタ取り付け詳細図
【図８】従来の遠心ファンの渦巻ケーシングの側面図
【符号の説明】
１ つめ
２ つめ穴
３ 上下の取付面
４ 左右の取付面
５ 上下のアダプタ側取付面
６ 左右のアダプタ側取付面
１０１ スクロール板
１０２ 側板
１０３ 吹出口
１０４ アダプタ[0001]
[Industrial applications]
The present invention relates to a spiral casing of a centrifugal fan used for air conditioning and ventilation ventilation.
[0002]
[Prior art]
Conventionally, in a spiral casing of this type of centrifugal fan, as shown in FIG. 8, a scroll plate 101 and two side plates 102 are fixed by welding or seam processing, and a duct is connected to an outlet 103. And an adapter 104 is attached.
[0003]
In the above configuration, the adapter 104 is detachable with the screw 101 or the like from the viewpoint of workability, and airtightness is not maintained between the outlet 103 and the adapter 104. It is good to increase the number of screws 105, but the workability is deteriorated. For this reason, it is widely known that a packing 106 is attached between the outlet 103 and the adapter 104 so that there is no air leakage at the time of blowing.
[0004]
[Problems to be solved by the invention]
In such a conventional spiral casing of a centrifugal fan, the packing 106 is required to maintain the airtightness of the joint surface 106 between the outlet 104 and the adapter 105, and the number of parts increases. There was a problem of doing.
[0005]
An object of the present invention is to provide a spiral casing of a centrifugal fan that maintains the airtightness of a joint surface 106 between an outlet 104 and an adapter 105 without increasing the number of assembling steps and material costs.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the spiral casing of the centrifugal fan according to the present invention has a first means in which the scroll plate and the two side plates are wider than the width of the pawl provided on the side plate. It is connected by inserting it into the claw hole and bending it, and by folding the upper and lower scroll plates as the mounting surface to attach the adapter for connecting the duct etc. to the outlet, and the left and right side plates parallel to the adapter side mounting surface And the adapter is fixed to only the left and right mounting surfaces of the side plate.
[0007]
Further, the second means is formed by bending the mounting surface of the first means for mounting the adapter so that the upper and lower sides are inclined toward the adapter toward the outside of the air outlet from the scroll plate, and the left and right sides serve as the adapter-side mounting surfaces. Formed by bending as described above.
[0008]
Further, the third means is that the upper and lower sides of the scroll plate are bent in parallel with the left and right mounting surfaces as the mounting surface for mounting the adapter of the first means, and the adapter side mounting surface which is in contact with the upper and lower mounting surfaces formed by the scroll plate is provided outside the outlet. The configuration is such that it is formed so as to be inclined toward the mounting surface side by the scroll plate.
[0009]
The fourth means may bend the mounting surface for mounting the adapter of the first means so that the left and right sides are inclined toward the adapter toward the outside of the outlet from the side plate, and the upper and lower sides of the scroll plate are parallel to the adapter mounting surface. Formed by bending as described above.
[0010]
The fifth means may be configured such that the left and right side plates are bent in parallel with the upper and lower mounting surfaces as mounting surfaces for mounting the adapter of the first means, and the adapter mounting surface in contact with the left and right mounting surfaces formed by the side plates is directed outward from the outlet. It is configured to be inclined to the left and right mounting surfaces by the side plates.
[0011]
[Action]
According to the first aspect of the present invention, since the claw provided on the scroll plate is inserted and connected to the claw hole wider than the claw width, the scroll plate tends to extend to a flat shape. The elastic force causes the upper and lower mounting surfaces of the scroll plate to protrude toward the adapter from the left and right mounting surfaces of the side plate. When the adapter is fixed to the mounting surface of the side plate with screws or the like, the mounting surface of the scroll plate is in close contact with the adapter-side mounting surface by the elastic force of the scroll plate, and airtightness can be maintained.
[0012]
Further, according to the configuration of the second means, when the mounting surface of the scroll plate is brought into close contact with the adapter-side mounting surface by the elastic force of the scroll plate by the first means, the mounting surface of the scroll plate is inclined and the adapter-side mounting surface is inclined. Since the elastic force at the time of coming into contact with the member is also applied, airtightness can be maintained.
[0013]
Further, according to the configuration of the third means, when the mounting surface of the scroll plate is brought into close contact with the adapter-side mounting surface by the elastic force of the scroll plate by the first means, the mounting surface of the scroll plate is inclined by tilting the adapter-side mounting surface. Since the elastic force at the time of coming into contact with the member is also applied, airtightness can be maintained.
[0014]
Further, according to the configuration of the fourth means, when the mounting surface of the scroll plate is brought into close contact with the adapter-side mounting surface by the elastic force of the scroll plate by the first means, the mounting surface of the side plate is inclined to be attached to the adapter-side mounting surface. Since the elastic force at the time of contact is also applied, airtightness can be maintained.
[0015]
Further, according to the configuration of the fifth means, when the mounting surface of the scroll plate is brought into close contact with the adapter-side mounting surface by the elastic force of the scroll plate by the first means, the adapter-side mounting surface is inclined to be attached to the mounting surface of the side plate. Since the elastic force at the time of contact is also applied, airtightness can be maintained.
[0016]
【Example】
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. The same parts as those in the conventional example are denoted by the same reference numerals, and detailed description is omitted.
[0017]
As shown in the figure, a plurality of pawls 1 are provided on a side of a scroll plate 101 made of a metal having an elastic force which is to be restored against bending, for connection with a side plate 102. Are provided with the same number of pawl holes 2 as the number of the pawls 1 for inserting the pawls 1 provided on the scroll plate 101. The scroll plate 101 is bent to form a spiral shape, a plurality of claws 1 are inserted into a plurality of corresponding pawl holes 2 and then bent, and the scroll plate 101 and the two side plates 102 are connected. In the outlet 103, the upper and lower mounting surfaces 3 are parallel to the scroll plate 101 and the left and right mounting surfaces 4 are parallel to the upper and lower adapter side mounting surfaces 5 and the left and right adapter side mounting surfaces 6 for mounting the adapter 104. It is formed by bending so that
[0018]
At this time, the scroll plate 101 receives an elastic force that attempts to recover from bending, and the width of the pawl hole 2 is wider than the width of the pawl 1. Therefore, the scroll plate 101 holds the pawl hole 2 in the pawl hole 2. Is deformed so as to return flat by a distance that can be moved. As a result, the upper and lower mounting surfaces 3 project toward the adapter 104 from the left and right mounting surfaces 4. When the screw 105 is tightened to attach the adapter 104, the upper and lower adapter-side mounting surfaces 5 come into contact with the upper and lower mounting surfaces 3 protruding toward the adapter 104. When the screw 105 is further tightened, the upper and lower mounting surfaces 3 are pressed against the adapter 104 and come into close contact with each other, and the scroll plate 101 is deformed in the pawl hole 2 by a distance that allows the pawl 1 to move. When the left and right mounting surfaces 4 and the left and right adapter-side mounting surfaces 6 are in close contact, the upper and lower mounting surfaces 3 and the upper and lower adapter-side mounting surfaces 5 are in close contact with elastic force, so that airtightness is maintained and air leakage occurs. do not do.
[0019]
As described above, according to the spiral casing of the centrifugal fan according to the first embodiment of the present invention, the airtightness between the outlet 103 and the adapter 104 can be maintained by the elastic force of the scroll plate 101.
[0020]
Next, a second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.
[0021]
As shown in the figure, in order to mount the adapter 104, the upper and lower mounting surfaces 3 are bent so that the scroll plate 101 is inclined toward the adapter 104 toward the outside of the air outlet 103, and the left and right mounting surfaces 4 fold the side plate 102 right and left. And is formed so as to be parallel to the adapter-side mounting surface 6.
[0022]
When the screw 105 is tightened to attach the adapter 104, the upper and lower adapter-side mounting surfaces 7 come into contact with the ends 7 of the upper and lower mounting surfaces 3 protruding toward the adapter 104. Further, when the screw 105 is tightened, the upper and lower mounting surfaces 3 are pressed by the adapter 104, deformed and adhered to be parallel to the adapter-side mounting surface 5, and the scroll plate 101 is caught in the pawl hole 2. Deforms by the distance that 1 can move When the left and right mounting surfaces 4 and the left and right adapter-side mounting surfaces 6 are in close contact, the upper and lower mounting surfaces 3 and the upper and lower adapter-side mounting surfaces 5 are in close contact with elastic force, so that airtightness is maintained and air leakage occurs. do not do.
[0023]
Thus, according to the spiral casing of the centrifugal fan according to the second embodiment of the present invention, the airtightness between the outlet 103 and the adapter 104 can be maintained by the elastic force of the scroll plate 101 and the upper and lower mounting surfaces 3.
[0024]
Next, a third embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.
[0025]
As shown in the figure, in order to mount the adapter 104, the upper and lower mounting surfaces 3 bend the scroll plate 101, and the left and right mounting surfaces 4 bend the side plate 102 so as to be parallel to the left and right adapter side mounting surfaces 6. The adapter-side mounting surface 5 is formed so as to incline to the upper and lower mounting surfaces 3 toward the outside of the outlet 103.
[0026]
When the screw 105 is tightened to attach the adapter 104, the upper and lower adapter-side mounting surfaces 5 come into contact with the edges 7 of the upper and lower mounting surfaces 3 protruding toward the adapter 104. Further, when the screw 105 is tightened, the upper and lower adapter-side mounting surfaces 5 are pressed by the upper and lower mounting surfaces 3, and are deformed so as to be parallel to the upper and lower mounting surfaces 3 so as to be in close contact therewith. It deforms by the distance that the pawl 1 can move in 2. When the left and right mounting surfaces 4 and the left and right adapter-side mounting surfaces 6 are in close contact, the upper and lower mounting surfaces 3 and the upper and lower adapter-side mounting surfaces 5 are in close contact with elastic force, so that airtightness is maintained and air leakage occurs. do not do.
[0027]
As described above, according to the spiral casing of the centrifugal fan of the third embodiment of the present invention, the airtightness between the outlet 103 and the adapter 104 can be maintained by the elastic force of the scroll plate 101 and the upper and lower adapter-side mounting surfaces 5. it can.
[0028]
Next, a fourth embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.
[0029]
As shown in the drawing, in order to mount the adapter 104, the left and right mounting surfaces 4 are bent so that the side plate 102 is inclined toward the outside of the outlet 103 toward the adapter 104, and the upper and lower mounting surfaces 3 move the scroll plate 101 up and down. Is formed so as to be parallel to the adapter-side mounting surface 5.
[0030]
When the screw 105 is tightened to mount the adapter 104, the left and right adapter-side mounting surfaces 6 and the end sides 8 of the left and right mounting surfaces 4 come into contact. When the screw 105 is further tightened, the left and right mounting surfaces 4 are pushed by the adapter 104 and deform so as to be parallel to the left and right adapter-side mounting surfaces 6. The upper and lower adapter-side mounting surfaces 5 are in contact with the upper and lower mounting surfaces 3 protruding toward the adapter 104, and the upper and lower mounting surfaces 3 are in close contact with each other while being pressed by the adapter 104. Is deformed by the distance that the pawl 1 can move. When the left and right mounting surfaces 4 and the right and left adapter-side mounting surfaces 6 are completely in close contact, the upper and lower mounting surfaces 3 and the upper and lower adapter-side mounting surfaces 5 are in close contact with elastic force, so that airtightness is maintained and air leaks. Does not occur.
[0031]
Thus, according to the spiral casing of the centrifugal fan of the fourth embodiment of the present invention, the airtightness between the outlet 103 and the adapter 104 can be maintained by the elastic force of the scroll plate 101 and the left and right mounting surfaces 4.
[0032]
Next, a fifth embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.
[0033]
As shown in the figure, in order to mount the adapter 104, the upper and lower mounting surfaces 3 bend the scroll plate 101, and the left and right mounting surfaces 4 bend the side plate 102 so as to be parallel to the left and right adapter side mounting surfaces 6. The adapter-side mounting surface 6 is formed so as to be inclined toward the left and right mounting surfaces 4 toward the outside of the outlet 103.
[0034]
When the screw 105 is tightened to mount the adapter 104, the left and right adapter-side mounting surfaces 6 and the end sides 8 of the left and right mounting surfaces 4 come into contact. When the screw 105 is further tightened, the left and right adapter-side mounting surfaces 6 are pressed by the left and right mounting surfaces 4 and deform so as to be parallel to the left and right mounting surfaces 4. The upper and lower adapter-side mounting surfaces 5 are in contact with the upper and lower mounting surfaces 3 protruding toward the adapter 104, and the upper and lower mounting surfaces 3 are in close contact with each other while being pressed by the adapter 104. Is deformed by the distance that the pawl 1 can move. When the left and right mounting surfaces 4 and the right and left adapter-side mounting surfaces 6 are completely in close contact, the upper and lower mounting surfaces 3 and the upper and lower adapter-side mounting surfaces 5 are in close contact with elastic force, so that airtightness is maintained and air leaks. Does not occur.
[0035]
Thus, according to the spiral casing of the centrifugal fan of the fourth embodiment of the present invention, the airtightness between the outlet 103 and the adapter 104 can be maintained by the elastic force of the scroll plate 101 and the left and right adapter-side mounting surfaces 6. it can.
[0036]
【The invention's effect】
As is apparent from the above embodiments, according to the present invention, the elastic force of the scroll plate maintains the airtightness between the outlet and the adapter, so that packing and the like are not required and the number of assembling steps and material costs do not increase. A spiral casing of a centrifugal fan that maintains airtightness and does not cause air leakage can be provided.
[Brief description of the drawings]
FIG. 1 is a side view of a spiral casing of a centrifugal fan according to a first embodiment of the present invention. FIG. 2 is a detailed view of attachment of the claw. FIG. 3 is a detailed view of attachment of an adapter to the outlet. FIG. FIG. 5 is a detailed view of an adapter attached to an outlet of a spiral casing of a centrifugal fan according to a second embodiment of the present invention. FIG. 5 is a detailed view of an adapter attached to an outlet of a spiral casing of a centrifugal fan according to a third embodiment of the present invention. FIG. 6 is a detailed view of the mounting of the adapter to the outlet of the spiral casing of the centrifugal fan according to the fourth embodiment of the present invention. FIG. 7 is the mounting of the adapter to the outlet of the spiral casing of the centrifugal fan according to the fifth embodiment of the present invention. Detailed view [Fig. 8] Side view of conventional spiral casing of centrifugal fan [Explanation of reference numerals]
First and second holes 3 Upper and lower mounting surfaces 4 Left and right mounting surfaces 5 Upper and lower adapter side mounting surfaces 6 Left and right adapter side mounting surfaces 101 Scroll plate 102 Side plate 103 Blow outlet 104 Adapter

Claims (5)

スクロール板と２つの側板が、スクロール板に設けられたつめを側板に設けられたつめ幅より幅の広いつめ穴に挿入し、折り曲げることで連結され、吹出口にダクトなどを接続するためのアダプタを取り付ける取付面として上下がスクロール板、左右が側板をアダプタ側取付面と平行となるように折り曲げることによって形成され、アダプタが側板の左右の取付面のみに固定されていることを特徴とする遠心ファンの渦巻ケーシング。An adapter for connecting a scroll plate and two side plates by inserting a pawl provided on the scroll plate into a pawl hole wider than a pawl width provided on the side plate and bending the same, and connecting a duct or the like to an outlet. The centrifugal mechanism is characterized in that the upper and lower sides are formed by bending the scroll plate as the mounting surface, and the left and right sides are bent so that the side plate becomes parallel to the adapter side mounting surface, and the adapter is fixed only to the left and right mounting surfaces of the side plate. The spiral casing of the fan. アダプタを取り付ける取付面として上下がスクロール板を吹出口外側にむかってアダプタ側に傾斜するように折り曲げ、左右が側板をアダプタ側取付面と平行となるように折り曲げることによって形成されていることを特徴とする請求項１記載の遠心ファンの渦巻ケーシング。The upper and lower sides are formed by bending the scroll plate so as to be inclined toward the adapter toward the outside of the outlet, and the left and right sides are formed by bending the side plate so as to be parallel to the adapter-side mounting surface. The spiral casing of a centrifugal fan according to claim 1, wherein アダプタを取り付ける取付面として上下スクロール板を左右の取付面と平行に折り曲げ、スクロール板による上下の取付面と接するアダプタ側取付面を吹出口外側にむかってスクロール板による取付面側に傾斜するように形成されていることを特徴とする請求項１記載の遠心ファンの渦巻ケーシング。The upper and lower scroll plates are bent in parallel with the left and right mounting surfaces as the mounting surface for mounting the adapter, and the mounting surface on the adapter side, which contacts the upper and lower mounting surfaces by the scroll plate, is inclined toward the outside of the air outlet toward the mounting surface by the scroll plate. The spiral casing of a centrifugal fan according to claim 1, wherein the spiral casing is formed. アダプタを取り付ける取付面として左右が側板を吹出口外側にむかってアダプタ側に傾斜するように折り曲げ、上下がスクロール板をアダプタ側取付面と平行となるように折り曲げることによって形成されていることを特徴とする請求項１記載の遠心ファンの渦巻ケーシング。The mounting surface for mounting the adapter is formed by bending the side plate so that the left and right sides are inclined toward the adapter toward the outside of the outlet, and the top and bottom are formed by bending the scroll plate so as to be parallel to the mounting surface on the adapter side. The spiral casing of a centrifugal fan according to claim 1, wherein アダプタを取り付ける取付面として左右が側板を上下の取付面と平行に折り曲げ、側板による左右の取付面と接するアダプタ側取付面を吹出口外側にむかって側板による左右の取付面側に傾斜するように形成されていることを特徴とする請求項１記載の遠心ファンの渦巻ケーシング。The left and right sides of the side plate are bent parallel to the upper and lower mounting surfaces as the mounting surface for mounting the adapter, and the adapter side mounting surface that is in contact with the left and right mounting surfaces by the side plate is inclined toward the outside of the outlet toward the left and right mounting surfaces by the side plate. The spiral casing of a centrifugal fan according to claim 1, wherein the spiral casing is formed.
JP12245094A 1994-06-03 1994-06-03 Centrifugal fan spiral casing Expired - Fee Related JP3549249B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12245094A JP3549249B2 (en) 1994-06-03 1994-06-03 Centrifugal fan spiral casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12245094A JP3549249B2 (en) 1994-06-03 1994-06-03 Centrifugal fan spiral casing

Publications (2)

Publication Number Publication Date
JPH07332295A JPH07332295A (en) 1995-12-22
JP3549249B2 true JP3549249B2 (en) 2004-08-04

Family

ID=14836149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12245094A Expired - Fee Related JP3549249B2 (en) 1994-06-03 1994-06-03 Centrifugal fan spiral casing

Country Status (1)

Country Link
JP (1) JP3549249B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005997B (en) * 2014-05-13 2016-06-08 珠海格力电器股份有限公司 Volute, centrifugal fan and air conditioner

Also Published As

Publication number Publication date
JPH07332295A (en) 1995-12-22

Similar Documents

Publication Publication Date Title
EP1050720B1 (en) Air conditioner
JPS6158300A (en) Electromagnetic shielding device
JP2001248988A (en) Heat exchanger
JPH11280985A (en) Protection cover for wiring and piping
US4461499A (en) Transverse joint system for sheet metal ducts
JP3549249B2 (en) Centrifugal fan spiral casing
US5879815A (en) Channel for fire damper assembly
JP3702549B2 (en) Case assembly structure
JP3804081B2 (en) Ventilation duct
KR0119809Y1 (en) Heat changer fixing structure of air conditioner
JP4671552B2 (en) Air conditioning equipment
JP4214456B2 (en) Indoor heat exchanger for air conditioning
JP4433586B2 (en) Air conditioner
JP2858934B2 (en) Blower unit
KR200232355Y1 (en) A structure fixing for thermistor with loeation-dislocation convenience in a split air conditioner
JP4675069B2 (en) Corrugated duct assembly structure
JP7490195B2 (en) Duct wall panel joint structure
JP2001133034A (en) Engaging device for air conditioner
CN218296032U (en) Front panel, outdoor unit and air conditioner
JP2579089B2 (en) Duct ventilation fan
JPH0512657Y2 (en)
GB2281102A (en) Ventilator motor support framework
KR0131460Y1 (en) Apparatus of overload protector for airconditioner compressor
JP3584445B2 (en) Air-conditioning chamber duct connection structure
JP4225423B2 (en) Air duct connection structure

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040311

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040323

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040420

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080430

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090430

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090430

Year of fee payment: 5

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090430

Year of fee payment: 5

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100430

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110430

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120430

Year of fee payment: 8

LAPS Cancellation because of no payment of annual fees