JPS5824000Y2 - Whirlpool blower soundproofing device - Google Patents
Whirlpool blower soundproofing deviceInfo
- Publication number
- JPS5824000Y2 JPS5824000Y2 JP1978026520U JP2652078U JPS5824000Y2 JP S5824000 Y2 JPS5824000 Y2 JP S5824000Y2 JP 1978026520 U JP1978026520 U JP 1978026520U JP 2652078 U JP2652078 U JP 2652078U JP S5824000 Y2 JPS5824000 Y2 JP S5824000Y2
- Authority
- JP
- Japan
- Prior art keywords
- blower
- cover
- electric motor
- soundproof cover
- outer box
- 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
Description
【考案の詳細な説明】
本案は駆動用電動機に外扇形電動機を使用した渦流プロ
ワを防音カバー内に収容して、上記電動機の外扇により
防音カバー内に外気を通して、渦流ブロワの冷却を行な
うようにした渦流プロワの防音装置の改良に関するもの
である。[Detailed description of the invention] In this invention, a vortex blower using an external fan-shaped motor as the drive motor is housed inside a soundproof cover, and the external fan of the motor passes outside air into the soundproof cover to cool the vortex blower. The present invention relates to an improvement of a soundproofing device for a whirlpool blower.
第１図および第２図は従来のこの種防音装置を示すもの
で、１は渦流プロワであって、これは外扇２を有する電
動機３の軸端側にプロワ外箱４を取付け、この外箱内に
上記電動機：てよって駆動される羽根車（図示せず）を
設け、外箱４内の外周部に設けた通風路の両端部には電
動機軸と平行にのびる吸込管５および吐出管６を連結し
である。FIGS. 1 and 2 show a conventional soundproofing device of this kind, in which reference numeral 1 is a vortex blower, in which a blower outer box 4 is attached to the shaft end side of an electric motor 3 having an outer fan 2. An impeller (not shown) driven by the electric motor is provided inside the box, and a suction pipe 5 and a discharge pipe extend parallel to the motor axis at both ends of a ventilation passage provided on the outer periphery of the outer box 4. 6 is connected.
上記吸込管５および吐出管６にはそれぞれ消音器７が設
けられている。A muffler 7 is provided in each of the suction pipe 5 and the discharge pipe 6.
８は渦流プロワ１を覆う防音カバーで、図示してないが
、内側に吸音材を貼っである。Reference numeral 8 denotes a soundproof cover that covers the whirlpool blower 1, and although not shown, a sound absorbing material is pasted on the inside.
この防音カバーの電動機側の端壁８ａの上部には吸気穴
１０を設け、この吸気穴と隔絶された下方の凹部にはブ
ロワの吸込管５およ西壮出前６の端部をのぞませる吸込
穴１１および吐出穴１２を設けである。An intake hole 10 is provided in the upper part of the end wall 8a on the motor side of this soundproof cover, and the ends of the blower's suction pipe 5 and the west end 6 are visible in a lower recessed part separated from the intake hole. A suction hole 11 and a discharge hole 12 are provided.
一方防音カバーのブロワ外箱側の端壁８ｂの上部には排
気穴１３を設けである。On the other hand, an exhaust hole 13 is provided in the upper part of the end wall 8b of the soundproof cover on the side of the blower outer box.
筐た、防音カバーの周壁８ｃの内側には電動機の外扇覆
い１４との間の間隙を塞ぐ通風案内壁１５を設けである
。A ventilation guide wall 15 is provided inside the peripheral wall 8c of the soundproof cover to close the gap between the housing and the outer fan cover 14 of the electric motor.
ブロワ１を運転すると吸込管５よりプロワ外箱４の通風
路に空気が吸込１れ、この通風路を通る間に圧縮されて
、吐出管６より防音カバー８の外部に吐出される。When the blower 1 is operated, air is sucked into the ventilation path of the blower outer box 4 through the suction pipe 5, is compressed while passing through the ventilation path, and is discharged from the discharge pipe 6 to the outside of the soundproof cover 8.
一方電動機の外扇２により冷却風が矢印のごとく防音カ
バーの吸気穴１０より防音カバー８内に吸込まれ、外扇
覆い１４の通気穴１６より入って、外扇覆い１４と電動
機外枠１７との間の吹出口１８より出て、電動機外枠１
７およびプロワ外箱４の外面を冷却したのち、防音カバ
ーの排気穴１３より排出される。On the other hand, cooling air is sucked into the soundproof cover 8 by the external fan 2 of the electric motor from the intake hole 10 of the soundproof cover as shown by the arrow, enters through the ventilation hole 16 of the external fan cover 14, and connects the external fan cover 14 and the motor outer frame 17. It comes out from the air outlet 18 between the motor outer frame 1
7 and the outer surfaces of the blower outer box 4 are cooled, and then discharged from the exhaust hole 13 of the soundproof cover.
このような従来構造においては、電動機の外扇２によっ
て外扇覆いと外枠との間の吹出口１８より出て外枠１７
の外面を冷却し、温度の高くなった風がプロワ外箱４に
あたったとき、その一部が矢印のごとく防音カバーの周
壁８ｃの内面に沿い反転して風速の大きい圧力の低い吹
出口１８附近の流れに吸込ｌれ合流する。In such a conventional structure, the outer fan 2 of the electric motor exits from the air outlet 18 between the outer fan cover and the outer frame and the outer fan 17
When the high-temperature air cools the outer surface of the blower and hits the blower outer box 4, a part of the air turns around along the inner surface of the peripheral wall 8c of the soundproof cover as shown by the arrow, and flows to the air outlet 18 where the wind speed is high and the pressure is low. It is sucked into the nearby flow and merges with it.
このため、電動機３の外枠１７の外面にプロワ外箱４に
あたって暖められた風が還流するため、ここに熱がこも
ってし筐い、電動機３の温度が上昇してし１う。For this reason, the heated air that hits the blower outer box 4 flows back to the outer surface of the outer frame 17 of the electric motor 3, so that heat is trapped there and the temperature of the electric motor 3 rises.
同時に、ブロワ外箱４側に送り出される風の温度も引き
上げてし捷うため渦流プロワ１の冷却効果が悪くなって
しまう欠点があった。At the same time, the temperature of the air sent to the blower outer box 4 side is also increased and the cooling effect of the whirlpool blower 1 is deteriorated.
本考案はこの点にかんがみ、電動機外扇によって外扇覆
いと電動機外枠との間の吹出口より出た冷却風の一部が
プロワ外箱にあたったのチ、防音カバー内側に沿い反転
して吹出口側に戻るのを防止する手段をプロワ外箱より
電動機側にプロワ外箱より通風間隙を介して設け、プロ
ワ外箱で温度の高くなった風が再び電動機側に戻ること
なくスムースに排気してゆくことができるよう改良した
構造の渦流プロワの防音装置を提案するものである。The present invention takes this point into account, and when a portion of the cooling air that comes out of the outlet between the outer fan cover and the motor outer frame due to the motor outer fan hits the blower outer box, it is reversed along the inside of the soundproof cover. A means to prevent the wind from returning to the blower outlet side is provided from the blower outer box to the motor side through a ventilation gap from the blower outer box, so that the air that has become hot in the blower outer box can be smoothly prevented from returning to the motor side. This paper proposes a soundproofing device for a whirlpool blower with an improved structure that allows exhaust to flow out.
第３図は本案の一実施例を示すもので、防音カバーの周
壁８ｃの内側に、プロワ外箱４の電動機側の側部に通風
間隙１９を介して列内し、その内周部と電動機外枠１７
との間に通風間隙２０を形成する反転流防止壁２１を突
設したものである。FIG. 3 shows an embodiment of the present invention, in which a row is placed inside the peripheral wall 8c of the soundproof cover, on the side of the blower outer box 4 on the motor side, with a ventilation gap 19 therebetween, and between the inner circumference and the motor. Outer frame 17
A reverse flow prevention wall 21 is provided protrudingly to form a ventilation gap 20 between the two.
このようにすることによりプロワ外箱４にあたった冷却
風は上記反転流防止壁２１によって反転するのを防止さ
れて、ことごとくプロワ外箱４と防音カバー周壁８ｃと
の間隙を通り防音カバーの排気穴１３より排出される。By doing this, the cooling air that hits the blower outer box 4 is prevented from being reversed by the reverse flow prevention wall 21, and all of the cooling air passes through the gap between the blower outer box 4 and the soundproof cover peripheral wall 8c and is exhausted from the soundproof cover. It is discharged from the hole 13.
したがって、プロワ外箱４で高温になった空気は電動機
３側に戻ることがなくなり、電動機３側に熱がこもるこ
とがなくなる。Therefore, the air that has become hot in the blower outer box 4 will not return to the electric motor 3 side, and heat will not accumulate on the electric motor 3 side.
第４図は第５図に示す別の実施例を説明するためのもの
であり、このように防音カバー８の通風案内壁１５の内
側に近接して周壁８Ｃに通気穴２２を設けると、プロワ
外箱４にあたった後、防音カバー内側に沿い反転して吹
出口１８側に戻る温度の高い空気を、通気穴２２より巻
き込んだ外気により冷却することができる。FIG. 4 is for explaining another embodiment shown in FIG. 5, and when the ventilation holes 22 are provided in the peripheral wall 8C close to the inside of the ventilation guide wall 15 of the soundproof cover 8, After hitting the outer box 4, the high-temperature air turns around along the inside of the soundproof cover and returns to the air outlet 18 side, and can be cooled by the outside air drawn in through the ventilation holes 22.
このとき、通気穴２２付近は内部の音が直接外部に飛び
出さないように従来より公知のしゃへい構造を取るもの
である。At this time, a conventionally known shielding structure is used in the vicinity of the ventilation hole 22 to prevent internal sounds from directly escaping to the outside.
したがって、第５図に示すように、反転流防止壁２１と
通気穴２２を設けると渦流プロワ１の冷却はより確実と
なる。Therefore, as shown in FIG. 5, if a reverse flow prevention wall 21 and a ventilation hole 22 are provided, cooling of the vortex flow blower 1 becomes more reliable.
本考案は以上説明したように、電動機外扇によって外扇
覆いと電動機外枠との間の吹出口より出り冷却風の一部
がプロワ外箱にあたったのち、防音カバー内側に沿い反
転して吹出口側に戻るのを防止する手段をプロワ外箱よ
り電動機側にプロワ外箱より通風間隙を介して設けたも
のである。As explained above, in the present invention, a part of the cooling air is emitted from the outlet between the outer fan cover and the motor outer frame by the electric motor outer fan, hits the blower outer box, and then reverses along the inside of the soundproof cover. A means for preventing the blower from returning to the blower outlet side is provided on the side of the electric motor from the blower outer case through a ventilation gap from the blower outer case.
したがって、本考案によればプロワ外箱にあたって温度
の高くなった空気が防音カバー内にこもることなくスム
ースに排出してゆくことができ、渦流プロワの冷却を妨
げることがない渦流プロワの防音装置を得ることができ
る。Therefore, according to the present invention, a soundproofing device for a whirlpool blower is provided, which allows the air that has reached a high temperature when it hits the blower outer box to be smoothly discharged without being trapped inside the soundproof cover, and which does not hinder the cooling of the whirlpool blower. Obtainable.
第１図は従来の渦流プロワの防音装置を示す切断側面図
、第２図は同正面図、第３図は本考案の一つの実施例を
説明するための切断側面図、第４図・第５図は本考案の
他の実施例を説明するための切断側面図である。
１・・・・・・渦流プロワ、２・・・・・・外扇、３・
・・・・・電動機、４・・・・・・プロワ外箱、５・・
・・・・吸込管、６・・・・・−吐出管、Ｉ・・・・・
・消音器、８・・・・・・防音カバー、１０・・・・・
・吸気穴、１３・・・・・・排気穴、１４・・・・・・
外扇覆い、１５・・・・・・通風案内壁、１８・・・・
・・吹出口、１９・・・・・・通風間隙、２１・・・・
・−反転流防止壁、２２・・・・・・通気穴。Fig. 1 is a cutaway side view showing a conventional soundproofing device for a whirlpool blower, Fig. 2 is a front view of the same, Fig. 3 is a cutaway side view for explaining one embodiment of the present invention, and Figs. FIG. 5 is a cutaway side view for explaining another embodiment of the present invention. 1... Whirlpool blower, 2... Outer fan, 3.
...Electric motor, 4...Prower outer box, 5...
...Suction pipe, 6...-Discharge pipe, I...
・Silencer, 8...Soundproof cover, 10...
・Intake hole, 13...Exhaust hole, 14...
Outside fan cover, 15... Ventilation guide wall, 18...
...Air outlet, 19...Ventilation gap, 21...
・-Reverse flow prevention wall, 22...Vent hole.
Claims (1)
動機によって駆動される羽根車を設け、上記外箱内外周
部の通風路の両端に電動機軸と平行にのひる吹込管およ
び吐出管を連結した渦流ブロワを防音カバーで覆い、こ
の防音カバーの電動機側の端部に吸気穴を、ブロワ外箱
側の端部に排気穴をそれぞれ設けると共に、防音カバー
の周壁内側に電動機の外扇覆いとの間の間隙を塞ぐ通風
案内壁を設け、かつ、ブロワの吸込管および吐出管の端
部をカバー外部に開口させたものにおいて、電動機外扇
によって外扇覆いと電動機外枠との間の吹出口より出た
冷却風の一部がブロワ外箱にあたったのち、防音カバー
内側に沿い反転して上記吹出口側に戻るのを防止するた
め、防音カバーの周壁内側にプロワ外箱の電動機側の側
部と通風間隙を介して対向し、その内周部と電動機外枠
との間に通風間隙を形成する反転流防止壁を突設したこ
とを特徴とする渦流プロワの防音装置。An impeller driven by the electric motor is installed in the blower outer box attached to the shaft end side of the outer fan-shaped electric motor, and an air blowing pipe and a discharge pipe are installed at both ends of the ventilation passage on the inner and outer periphery of the outer box in parallel with the motor shaft. Cover the vortex blower connected to the soundproof cover with a soundproof cover, provide an intake hole at the end of the soundproof cover on the motor side, and an exhaust hole at the end of the blower outer box side, and install the external fan of the electric motor inside the peripheral wall of the soundproof cover. In the case where a ventilation guide wall is provided to close the gap between the cover and the blower, and the ends of the suction pipe and discharge pipe of the blower are opened to the outside of the cover, the gap between the outer fan cover and the motor outer frame is In order to prevent some of the cooling air coming out of the blower outlet from hitting the blower outer box, turning around along the inside of the soundproof cover and returning to the blower outlet side, the blower outer box is placed inside the peripheral wall of the soundproof cover. 1. A soundproofing device for a whirlpool blower, characterized in that a reverse flow prevention wall is provided protrudingly facing a side portion of the electric motor side with a ventilation gap therebetween, and forming a ventilation gap between the inner peripheral portion of the wall and the outer frame of the electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978026520U JPS5824000Y2 (en) | 1978-03-03 | 1978-03-03 | Whirlpool blower soundproofing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978026520U JPS5824000Y2 (en) | 1978-03-03 | 1978-03-03 | Whirlpool blower soundproofing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54130604U JPS54130604U (en) | 1979-09-11 |
| JPS5824000Y2 true JPS5824000Y2 (en) | 1983-05-23 |
Family
ID=28868928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978026520U Expired JPS5824000Y2 (en) | 1978-03-03 | 1978-03-03 | Whirlpool blower soundproofing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824000Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010229884A (en) * | 2009-03-27 | 2010-10-14 | Max Co Ltd | Sound reduction storage tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU383890A1 (en) * | 1971-01-07 | 1973-05-23 | CENTRIFUGAL INJECTION INSTALLATION |
-
1978
- 1978-03-03 JP JP1978026520U patent/JPS5824000Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU383890A1 (en) * | 1971-01-07 | 1973-05-23 | CENTRIFUGAL INJECTION INSTALLATION |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54130604U (en) | 1979-09-11 |
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