JPH0532599B2 - - Google Patents
Info
- Publication number
- JPH0532599B2 JPH0532599B2 JP61077129A JP7712986A JPH0532599B2 JP H0532599 B2 JPH0532599 B2 JP H0532599B2 JP 61077129 A JP61077129 A JP 61077129A JP 7712986 A JP7712986 A JP 7712986A JP H0532599 B2 JPH0532599 B2 JP H0532599B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- shaft
- fan
- motor
- pressure spring
- 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 - Lifetime
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明の電磁調理器などに使用されるフアン装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fan device used in an electromagnetic cooker or the like.
従来の技術
電磁調理器などの加熱調理器において、調理器
本体を薄型にすることは、卓上で鍋料理などの調
理の場合非常に使い勝手が良くなつて、商品性が
向上するものであるが、内部部品の構成上、その
高さに制約があつた。Conventional Technology In heating cookers such as electromagnetic cookers, making the cooker body thinner makes it much easier to use when cooking pot dishes on a tabletop, and improves marketability. Due to the structure of the internal parts, there were restrictions on their height.
その特に主要な要素として、内部の部品冷却を
行う、フアンモーターの小型化が必要とされてい
る。そのため最近、第５図のように、小型のDC
モーター１をフアン２の内部に配置して、小型
化、薄型化を図つたものが考案されている。 A particularly important element of this is the need to downsize the fan motor that cools internal components. Therefore, recently, as shown in Figure 5, small DC
A device has been devised in which the motor 1 is placed inside the fan 2 to make it smaller and thinner.
発明が解決しようとする問題点
ところが、フアン２の羽根の大きさに対し、
DCモーター１の形状がある一定以上小さくなる
と、調理器の性能上新たな問題を発生する。Problems to be solved by the invention However, with respect to the size of the blades of fan 2,
If the shape of the DC motor 1 becomes smaller than a certain level, new problems will occur in terms of the performance of the cooker.
それは、フアン２の羽根のぶれ、偏心により、
DCモーター１のシヤフト３が軸受４の内面に不
規則に接触して、騒音を発生するものである。こ
れは、シヤフトと軸受部のクリアランスａによつ
て発生するためクリアランス音といわれる。その
ため従来は、DCモーター１の軸受部４を長くの
ばしたり、シヤフト径を大きくしたりして、軸受
部の構造を強固にし、偏心の発生を抑えるように
していたが、DCモーター自体の小型化や低価格
化の面で大きな障害となつていた。 This is due to the vibration and eccentricity of the fan 2 blades.
The shaft 3 of the DC motor 1 irregularly contacts the inner surface of the bearing 4, generating noise. This is called clearance noise because it is generated by the clearance a between the shaft and the bearing. Therefore, in the past, the bearing part 4 of the DC motor 1 was lengthened or the shaft diameter was increased to strengthen the structure of the bearing part and suppress the occurrence of eccentricity.However, miniaturization of the DC motor itself This was a major obstacle in terms of price reduction and price reduction.
本発明は、上記従来の問題点を解消するもの
で、フアンの薄型化を図りつつ軸受部での騒音の
発生を防止したものである。 The present invention solves the above-mentioned conventional problems, and aims to reduce the thickness of the fan while preventing the generation of noise at the bearing portion.
問題点を解決するための手段
上記従来の問題点を解決するために本発明は遠
心形フアンと、この遠心形フアンの内部に配置さ
れるとともに、第１の軸受でシヤフトが支承さ
れ、同シヤフトに上記フアンを固定したモーター
と、上記シヤフトに挿入されるとともに、第１の
軸受の反モーター側に位置させた第２の軸受と、
この第２の軸受に圧接して上記シヤフトを径方向
の一方に付勢する圧力バネとを具備したものであ
る。Means for Solving the Problems In order to solve the above conventional problems, the present invention includes a centrifugal fan, a shaft disposed inside the centrifugal fan, a shaft supported by a first bearing, a motor to which the fan is fixed; a second bearing inserted into the shaft and located on the side opposite to the motor of the first bearing;
A pressure spring is provided which presses against the second bearing and biases the shaft in one direction in the radial direction.
作 用
上記手段によれば、シヤフトには第２の軸受を
介して圧力バネの力が径方向に加わつておりした
がつて、第１の軸受内部でシヤフトが不規則に回
転することがない。Effect: According to the above means, since the force of the pressure spring is applied to the shaft in the radial direction via the second bearing, the shaft does not rotate irregularly inside the first bearing.
実施例
以下その実施例を第１図〜第４図を参照して説
明する。Embodiment The embodiment will be described below with reference to FIGS. 1 to 4.
図において、調理器本体５は、その上部に調理
プレート６を有し、吸気口をもつ底板７で下方が
閉じられている。そして、８がこの調理器本体５
に内設した冷却用のフアンモーターで、遠心形フ
アン９の内部にモーター８′を配置した構成とな
つている。 In the figure, a cooking device main body 5 has a cooking plate 6 on its upper part, and is closed at the bottom by a bottom plate 7 having an air intake port. 8 is this cooker main body 5
A cooling fan motor is installed inside the centrifugal fan 9, and the motor 8' is arranged inside the centrifugal fan 9.
そして先端部に上記フアン９を固定したモータ
ー８′のシヤフト１０は第１の軸受１１で軸支さ
れている。さらにこのシヤフト１０には上記第１
の軸受１１とは別の第２の軸受１２が挿入されて
いる。この第２の軸受１２は内部に油を含む、い
わゆるオイルレスメタルと同材質のもので、第１
の軸受１１の反モーター側に位置している。１３
は一端をモーター支持体１４に固定した薄板バネ
状の圧力バネを示し、その遊端は上記第２の軸受
１２の外周縁に斜めから圧接しているものであ
る。すなわち、上記圧力バネ１３の圧接によつ
て、第２の軸受１２には径方向と軸方向（モータ
ー方向）との分力が作用することとなる。 A shaft 10 of a motor 8' having the fan 9 fixed to its tip is supported by a first bearing 11. Furthermore, this shaft 10 has the above-mentioned first
A second bearing 12 different from the bearing 11 is inserted. This second bearing 12 is made of the same material as so-called oil-less metal that contains oil inside.
The bearing 11 is located on the opposite side of the motor. 13
1 shows a pressure spring in the form of a thin plate spring whose one end is fixed to the motor support 14, and its free end is in pressure contact with the outer peripheral edge of the second bearing 12 from an angle. That is, due to the pressurization of the pressure spring 13, force components in the radial direction and the axial direction (motor direction) act on the second bearing 12.
上記の構成において、シヤフト１０には圧力バ
ネ１３の圧接によつて、第２の軸受１２を介して
径方向の力が加わつており、そのため、第１の軸
受１１の一方にシヤフト１０が付勢されて回転す
る。 In the above configuration, a radial force is applied to the shaft 10 via the second bearing 12 due to pressure contact of the pressure spring 13, so that the shaft 10 is biased against one of the first bearings 11. rotated.
したがつて、シヤフト１０と第１の軸受１１の
内壁との間にクリアランスがあつても、不規則に
回転することがなく、よつて、騒音の発生も抑制
できるものである。 Therefore, even if there is a clearance between the shaft 10 and the inner wall of the first bearing 11, the shaft 10 will not rotate irregularly, and the generation of noise can therefore be suppressed.
また圧力バネ１３の力は、第２の軸受１２に軸
方向（モーター方向）への分力としても作用する
ところから、この第２の軸受１２の移動防止に役
立つている。 Furthermore, the force of the pressure spring 13 also acts on the second bearing 12 as a component force in the axial direction (motor direction), so it is useful for preventing movement of the second bearing 12.
そして上記実施例では、シヤフト１０に直接圧
力バネ１３を圧接させるのではなく、第２の軸受
１２を設けてこれに付勢力を作用させているた
め、上記圧力バネ１３の耐久性を大幅に向上させ
ることができる。 In the above embodiment, the pressure spring 13 is not brought into pressure contact with the shaft 10 directly, but the second bearing 12 is provided to apply a biasing force to the second bearing 12, so that the durability of the pressure spring 13 is greatly improved. can be done.
発明の効果
このように本発明は、遠心形フアンの内部に配
置されるとともに、第１の軸受でシヤフトが支承
され、同シヤフトに上記フアンを固定したモータ
ーと、上記シヤフトに挿入されるとともに、第１
の軸受の反モーター側に位置させた第２の軸受
と、この第２の軸受に圧接して上記シヤフトを径
方向の一方に付勢する圧力バネとを具備したもの
で、第１の軸受でのシヤフトの不規則回転を防止
して異常音の発生を抑制できるものであり、また
構成も簡単で、フアン装置の薄型化を促進できる
とともに、耐久性に富むものを提供できるもので
ある。Effects of the Invention As described above, the present invention includes a motor that is placed inside a centrifugal fan, has a shaft supported by a first bearing, and has the fan fixed to the shaft, and a motor that is inserted into the shaft. 1st
The shaft is equipped with a second bearing located on the side opposite to the motor of the bearing, and a pressure spring that presses against the second bearing and biases the shaft in one direction in the radial direction. The present invention is capable of preventing irregular rotation of the shaft of the fan and suppressing the generation of abnormal noise, and is also simple in construction, facilitating the reduction in thickness of the fan device, and providing a highly durable fan device.
第１図は本発明の実施例を示す要部断面図、第
２図は同冷却フアン部の断面図、第３図は誘導加
熱調理器の外観斜視図、第４図は同要部外観斜視
図、第５図は従来例を示す要部断面図である。
５……調理器本体、８……フアンモーター、９
……フアン、１０……シヤフト、１１……軸受、
１２……リング、１３……圧力バネ。
Fig. 1 is a sectional view of a main part showing an embodiment of the present invention, Fig. 2 is a sectional view of the cooling fan section, Fig. 3 is an external perspective view of the induction heating cooker, and Fig. 4 is an external perspective view of the main part. FIG. 5 is a sectional view of a main part showing a conventional example. 5...Cooker body, 8...Fan motor, 9
...Fan, 10...Shaft, 11...Bearing,
12...Ring, 13...Pressure spring.
Claims (1)
配置されるとともに、第１の軸受でシヤフトが支
承され、同シヤフトに上記フアンを固定したモー
ターと、上記シヤフトに挿入されるとともに、第
１の軸受の反モーター側に位置させた第２の軸受
と、この第２の軸受に圧接して上記シヤフトを径
方向の一方に付勢する圧力バネとを具備したフア
ン装置。1 A centrifugal fan, a motor disposed inside the centrifugal fan, a shaft supported by a first bearing, and the fan fixed to the shaft; A fan device comprising: a second bearing located on the opposite side of the bearing; and a pressure spring that presses against the second bearing and biases the shaft in one radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61077129A JPS62233496A (en) | 1986-04-03 | 1986-04-03 | fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61077129A JPS62233496A (en) | 1986-04-03 | 1986-04-03 | fan device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62233496A JPS62233496A (en) | 1987-10-13 |
| JPH0532599B2 true JPH0532599B2 (en) | 1993-05-17 |
Family
ID=13625183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61077129A Granted JPS62233496A (en) | 1986-04-03 | 1986-04-03 | fan device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62233496A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51137109A (en) * | 1975-05-21 | 1976-11-26 | Sharp Corp | Bearing system for a cross flow fan |
| JPS51150711A (en) * | 1975-06-20 | 1976-12-24 | Hitachi Ltd | An electric blower |
| JPS59179299U (en) * | 1983-05-18 | 1984-11-30 | 松下電器産業株式会社 | heating cooker |
-
1986
- 1986-04-03 JP JP61077129A patent/JPS62233496A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62233496A (en) | 1987-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |