JPH0615503Y2 - Resonance prevention structure for fan motor - Google Patents
Resonance prevention structure for fan motorInfo
- Publication number
- JPH0615503Y2 JPH0615503Y2 JP1988052695U JP5269588U JPH0615503Y2 JP H0615503 Y2 JPH0615503 Y2 JP H0615503Y2 JP 1988052695 U JP1988052695 U JP 1988052695U JP 5269588 U JP5269588 U JP 5269588U JP H0615503 Y2 JPH0615503 Y2 JP H0615503Y2
- Authority
- JP
- Japan
- Prior art keywords
- fan motor
- frame body
- vibration transmission
- cylindrical frame
- resonance
- 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
- Vibration Prevention Devices (AREA)
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は冷却用ファンモータを使用する電子機器等の
低騒音化構造に関し、詳しくは、ファンモータの共鳴音
防止構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a structure for reducing noise in an electronic device or the like using a cooling fan motor, and more particularly to a structure for preventing resonance noise of a fan motor.
［従来の技術］ 近年、電子機器の大容量小型化が進展するに伴い、当然
のことながら、その電子機器きょう体の内部冷却の必要
性が増大し、きょう体に取り付けられた冷却用ファンモ
ータの共鳴による騒音の問題が残されている。[Prior Art] With the recent progress in large-capacity and miniaturization of electronic devices, the need for internal cooling of the electronic device casing has naturally increased, and a cooling fan motor attached to the casing has naturally increased. The problem of noise due to resonance remains.
第４図は従来の冷却用ファンモータの一取付例を示す分
解斜視図であり、電子機器きょう体の取付板１（要部の
み示してある）にファンモータ２を図示せぬゴムクッシ
ョンなど緩衝部材を介して、フランジ３，４の各角隅部
３ａ，３ａ及び４ａ，４ａにおいてねじ５によって取り
付ける構造のものであった。ここで、１ａ，３ｂ，４ｂ
はそれぞれ取付板１、フランジ３及びフランジ４に設け
られた透孔であり、ねじ５がこれらの透孔１ａ，３ｂ，
４ｂを貫通する。又、３ｃはフランジ３と一体の支持脚
で、軸受部３ｄを一体に支持している。６は軸受部３ｄ
下部に軸受されて回転自在なモータに連結されているフ
ァンである。FIG. 4 is an exploded perspective view showing one mounting example of a conventional cooling fan motor, in which a fan motor 2 is attached to a mounting plate 1 (only a main part is shown) of an electronic device casing such as a rubber cushion (not shown). The structure is such that the flanges 3 and 4 are attached by screws 5 at the corners 3a, 3a and 4a, 4a of the flanges 3 and 4, respectively. Here, 1a, 3b, 4b
Are through holes provided in the mounting plate 1, the flange 3 and the flange 4, respectively, and the screws 5 are through holes 1a, 3b,
Penetrate 4b. Further, 3c is a support leg that is integral with the flange 3 and integrally supports the bearing portion 3d. 6 is a bearing portion 3d
It is a fan bearing a lower part and connected to a rotatable motor.
［考案が解決しようとする課題］ しかしながら、上記構成のファンモータ２を緩衝部材を
介して電子機器きょう体の取付板１にねじ５によってね
じ止めするだけでは、ファンモータ２から発生する振動
音が取付板１で共鳴して騒音が増大するという問題点が
あった。[Problems to be Solved by the Invention] However, if the fan motor 2 having the above-described configuration is screwed to the mounting plate 1 of the electronic device casing with the screw 5 via the cushioning member, the vibration noise generated from the fan motor 2 is generated. There is a problem in that the mounting plate 1 resonates to increase noise.
本考案は従来の技術の有するこのような問題点に鑑みて
なされたもので、目的とするところは、ファンモータ枠
体の両外側に設けたレバーによってファンモータを弾性
支持し、きょう体の取付板にファンモータを取り付けた
時の騒音の増加を防止することによって、ファンモータ
の共鳴音防止構造を提供しようとするものである。The present invention has been made in view of the above problems of the prior art. The purpose of the present invention is to elastically support the fan motor by levers provided on both outer sides of the fan motor frame and mount the housing. An object of the present invention is to provide a resonance noise prevention structure for a fan motor by preventing an increase in noise when the fan motor is attached to the plate.
［課題を解決するための手段］ 上記目的を達成するために、本考案におけるファンモー
タの共鳴音防止構造は、ファンモータを収容する円筒状
枠体の相対向する外周上に形成された両角部から、それ
ぞれ外周に接する方向に平行に延設されると共に、傾斜
して枠体底面下方にまで達する振動伝達防止レバーを設
け、その先端取付体にて円筒状枠体を取付板に固定し、
ファンモータを電子機器きょう体に担持してなるファン
モータの共鳴音防止構造となしたものである。[Means for Solving the Problems] In order to achieve the above-mentioned object, a resonance noise preventing structure for a fan motor according to the present invention has both corners formed on opposite outer peripheries of a cylindrical frame that houses the fan motor. From the above, a vibration transmission preventing lever that extends in parallel to the direction of contacting the outer circumference and that tilts to reach the bottom of the bottom of the frame body is provided, and the cylindrical frame body is fixed to the mounting plate by the tip mounting body,
This is a structure for preventing resonance noise of a fan motor in which a fan motor is carried on an electronic device casing.
そして、この振動伝達防止レバーは別個の弾性部材で作
ったものを枠体に固定してもよいが、枠体と一体に成形
することの方が好ましい。The vibration transmission preventing lever may be made of a separate elastic member and fixed to the frame body, but it is preferably formed integrally with the frame body.
［作用］ 本考案によれば、以上のようなファンモータの共鳴音防
止構造にしたので、ファンモータは、その枠体に設けら
れた２本の振動伝達防止レバーの先端部の取付体のみで
電子機器きょう体に担持されることになるので、ファン
モータからの振動の伝達はレバーにおいて減殺されるた
め、共鳴音の防止機能が発揮される。したがって、前記
問題点を除去出来ることになるのである。[Operation] According to the present invention, since the resonance noise preventing structure of the fan motor as described above is provided, the fan motor can be formed only by the attachment body of the tip end portions of the two vibration transmission preventing levers provided on the frame body. Since the vibration is transmitted from the fan motor to the lever because it is carried by the electronic device casing, the function of preventing resonance noise is exerted. Therefore, the problem can be eliminated.
［実施例］ 以下、本考案の実施例について図面を参照して説明す
る。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図は本考案の一実施例を示す一部分解斜視図で、第
２図はその側断面図である。第１，２図において、１１
はファンモータを取り付ける電子機器きょう体の取付
板、１２はファンモータを収容するプラスチック成形さ
れた円筒状枠体で上下に角状のフランジ１２ａ，１２ｂ
がある。１３は放射状に配設された支持脚１４によって
吊架され、フランジ１２ａに一体に成形されている軸受
部で、この内部にモータ軸の上端が軸支され、同軸下方
には、ファン１５図示していないがファンモータ本体が
設けられ、下端は下部フランジ１２ｂの軸受部に軸支さ
れている。１６は例えばばねなどの弾性部材で作られた
振動伝達防止レバーで、第２図に示されるように、途中
から傾斜してそれぞれの先端取付体１６ａ，１６ａ′が
フランジ１２ｂ下面よりも下方まで延設されており、上
部はフランジ１２ａの一方の角部１１２ａにねじ１７に
よって固定されている。尚、１６′はレバー１６と同一
構造で枠体１２の反対側に設けられた振動伝達防止レバ
ーであって、レバー１６と平行かつ反対方向（第２図参
照）に傾斜している。１６ａ，１６ａ′はレバー１６，
１６′の先端に設けられた、フランジ１２ａ，１２ｂと
平行な取付体で、ねじ１８によって電子機器きょう体の
取付板１１に取り付ける。FIG. 1 is a partially exploded perspective view showing an embodiment of the present invention, and FIG. 2 is a side sectional view thereof. 1 and 2 in FIG.
Reference numeral 12 is a mounting plate of an electronic device housing to which the fan motor is mounted, and 12 is a plastic-molded cylindrical frame body that houses the fan motor, and has upper and lower angular flanges 12a and 12b
There is. Reference numeral 13 denotes a bearing portion which is suspended by radial support legs 14 and which is integrally formed with the flange 12a. The upper end of the motor shaft is supported inside the bearing portion. Although not shown, a fan motor body is provided, and the lower end is pivotally supported by the bearing portion of the lower flange 12b. Reference numeral 16 is a vibration transmission preventing lever made of, for example, an elastic member such as a spring, and as shown in FIG. The upper part is fixed to one corner 112a of the flange 12a by a screw 17. Reference numeral 16 'denotes a vibration transmission preventing lever which has the same structure as the lever 16 and is provided on the opposite side of the frame body 12 and is inclined parallel to and opposite to the lever 16 (see FIG. 2). 16a and 16a 'are levers 16,
An attachment body provided at the tip of 16 'and parallel to the flanges 12a and 12b is attached to the attachment plate 11 of the electronic equipment casing with a screw 18.
このように構成されているので、ファンモータは弾性部
材で作られたレバー１６，１６′によって緩衝され、取
付体１６ａ，１６ａ′だけできょう体の取付板１１に担
持されている。したがって、ファンモータの姿勢によっ
て生ずる振動は、その弾性部材で作られているレバー１
６，１６′によって緩衝され、取付板１１には振動が余
り伝達されなくなるので、共鳴しにくくなる。測定によ
れば、従来構造では騒音４３ｄｂであったものが本実施
例では約３８ｄｂにまで減少した。With such a configuration, the fan motor is buffered by the levers 16 and 16 'made of elastic members, and only the mounting members 16a and 16a' are carried on the mounting plate 11 which is a flexible body. Therefore, the vibration caused by the attitude of the fan motor is generated by the lever 1 made of the elastic member.
Since the vibrations are not transmitted to the mounting plate 11 because they are buffered by 6, 16 ', resonance is less likely to occur. According to the measurement, the noise of 43 db in the conventional structure is reduced to about 38 db in this embodiment.
第３図は本考案の他の実施例を示す外観斜視図で、この
場合は、レバー２６，２６′が枠体２２と一体に成形さ
れている点が上記第１図実施例と異なっている。すなわ
ち、第３図において、２１は冷却用ファンモータを取り
付ける電子機器きょう体の取付板、２２はファンモータ
の枠体で、その外周２２ａ上の相対向する部分に角部２
２ｂ，２２ｃが形成されている。そして、２３は軸受
部、２４はこの軸受部２３を枠体２２に一体に成形支持
する支持脚で軸受部２３、支持脚２４は枠体２２と一体
に成形されている。２５はファンであり、２６，２６′
は枠体２２の相対向する角部２２ｂ，２２ｃからそれぞ
れ外周に接する方向に平行に延設されると共に、傾斜し
て枠体底面下方にまで達する振動伝達防止レバーで、２
６ａははその先端部に一体に成形された取付体で、この
取付面は枠体２２の上下面と平行である。この実施例に
よれば、振動伝達防止レバー２６，２６′までが枠体２
２と一体成形されているので、ファンモータは取付体２
６ａ，２６ａ′（図示せず）の２面のみで取付板２１に
ねじ２７によってねじ止めされ担持されているので、前
実施例（第１図、第２図参照）に比べて組立が簡易かつ
確実で、安価となる特徴があり、この実施例（第３図）
の方が好ましい。FIG. 3 is an external perspective view showing another embodiment of the present invention. In this case, the levers 26, 26 'are integrally formed with the frame body 22, which is different from the embodiment shown in FIG. . That is, in FIG. 3, reference numeral 21 is a mounting plate of an electronic device casing to which a cooling fan motor is attached, 22 is a frame of the fan motor, and corner portions 2 are provided on the outer periphery 22a at opposite portions.
2b and 22c are formed. Further, 23 is a bearing portion, 24 is a support leg that integrally supports the bearing portion 23 on the frame body 22, and the bearing portion 23 and the support leg 24 are integrally formed with the frame body 22. 25 is a fan, 26, 26 '
Is a vibration transmission preventing lever that extends in parallel from the opposite corners 22b and 22c of the frame body 22 in the direction of contacting the outer circumference, and that tilts to reach the bottom of the frame body.
Reference numeral 6a denotes an attachment body integrally formed at its tip portion, and the attachment surface is parallel to the upper and lower surfaces of the frame body 22. According to this embodiment, up to the vibration transmission preventing levers 26 and 26 ', the frame 2 is provided.
2, the fan motor is attached to the mounting body 2
6a and 26a '(not shown) are held on the mounting plate 21 by screws 27 only on two surfaces, so that the assembly is easier and easier than in the previous embodiment (see FIGS. 1 and 2). It has certain characteristics that it is reliable and inexpensive, and this embodiment (Fig. 3)
Is preferred.
［考案の効果］ 本考案は、上述のとおり構成されているので、次に記載
する効果を奏する。[Advantages of the Invention] Since the present invention is configured as described above, it has the following effects.
請求項（１）のファンモータの共鳴音防止構造において
は、電子機器きょう体の取付板が、ファンモータを、互
いに反対方向に傾斜する振動伝達防止レバーの先端取付
体だけで担持するので、ファンモータ自体の振動は、こ
の２本のレバーにて減殺され、従来構造では騒音４３ｄ
ｂのものが３８ｄｂ以下に押えられる。In the resonance noise preventing structure for a fan motor according to claim (1), since the mounting plate of the electronic device casing carries the fan motor only by the tip mounting bodies of the vibration transmission preventing levers inclined in opposite directions, the fan is mounted. Vibration of the motor itself is attenuated by these two levers, and noise 43d is generated in the conventional structure.
The thing of b is suppressed below 38db.
請求項（２）のファンモータの共鳴音防止構造において
は、従来構造のファンモータに弾性部材で作られた振動
伝達防止レバーをねじ止めするだけで騒音の少ない電子
機器きょう体が得られる。In the resonance noise preventing structure for a fan motor according to claim (2), an electronic device casing with less noise can be obtained by simply screwing a vibration transmission preventing lever made of an elastic member to a fan motor having a conventional structure.
請求項（３）のファンモータの共鳴音防止構造を用いる
と、振動伝達防止レバーは、ファンモータの枠体と一体
に成形されているので、請求項（２）のものよりも、組
立が簡易化され、安価にしてより確実な騒音防止が図れ
る。When the resonance sound preventing structure for a fan motor according to claim (3) is used, the vibration transmission preventing lever is formed integrally with the frame of the fan motor, so that the assembly is easier than that according to claim (2). The cost can be reduced and the noise can be more reliably prevented.
第１図は本考案の一実施例を示す外観斜視図、第２図は
その側断面図、第３図は本考案の他の実施例を示す外観
斜視図、第４図は従来例の分解斜視図である。 １１，２１……取付板、１２，２２……枠体、１３，２
３……軸受部、１４，２４……支持脚、１５，２５……
ファン、１６，１６′，２６，２６′……振動伝達防止
レバー、１６ａ，２６ａ……取付体。1 is an external perspective view showing an embodiment of the present invention, FIG. 2 is a side sectional view thereof, FIG. 3 is an external perspective view showing another embodiment of the present invention, and FIG. 4 is an exploded view of a conventional example. It is a perspective view. 11,21 ... Mounting plate, 12,22 ... Frame body, 13,2
3 ... Bearings, 14, 24 ... Support legs, 15, 25 ...
Fans, 16, 16 ', 26, 26' ... Vibration transmission preventing levers, 16a, 26a ..
Claims (3)
向する外周上に形成された両角部から、それぞれ外周に
接する方向に平行に延設されると共に、傾斜して枠体底
面下方にまで達する振動伝達防止レバーを設け、この先
端取付体にて円筒状枠体を取付板に固定し、ファンモー
タを電子機器きょう体に担持してなるファンモータの共
鳴音防止構造。1. A cylindrical frame body for accommodating a fan motor, extending from both corner portions formed on opposite outer peripheries of the cylindrical frame body in parallel with each other in a direction in contact with the outer peripheries thereof, and being inclined and below the bottom surface of the frame body. Resonance prevention structure for fan motors, which is equipped with a vibration transmission prevention lever that reaches up to this point, fixes the cylindrical frame to the mounting plate with this tip mounting body, and carries the fan motor on the electronic device housing.
され、円筒状枠体の上部フランジ両角部に連結された請
求項（１）記載のファンモータの共鳴音防止構造。2. The resonance noise preventing structure for a fan motor according to claim 1, wherein the vibration transmission preventing lever is made of an elastic member and is connected to both corners of the upper flange of the cylindrical frame.
に成形された請求項（１）記載の共鳴音防止構造。3. The resonance sound preventing structure according to claim 1, wherein the vibration transmission preventing lever is formed integrally with the cylindrical frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052695U JPH0615503Y2 (en) | 1988-04-19 | 1988-04-19 | Resonance prevention structure for fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052695U JPH0615503Y2 (en) | 1988-04-19 | 1988-04-19 | Resonance prevention structure for fan motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01159565U JPH01159565U (en) | 1989-11-06 |
| JPH0615503Y2 true JPH0615503Y2 (en) | 1994-04-20 |
Family
ID=31278702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988052695U Expired - Lifetime JPH0615503Y2 (en) | 1988-04-19 | 1988-04-19 | Resonance prevention structure for fan motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615503Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4652759B2 (en) * | 2004-09-17 | 2011-03-16 | キヤノン株式会社 | Fan unit and optical device |
| CN103608594B (en) * | 2011-06-16 | 2017-02-08 | 株式会社日立制作所 | Attachment structure for fan apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535840U (en) * | 1976-07-02 | 1978-01-19 | ||
| JPS5840595U (en) * | 1981-09-14 | 1983-03-17 | 国産電機株式会社 | cooling blower |
-
1988
- 1988-04-19 JP JP1988052695U patent/JPH0615503Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01159565U (en) | 1989-11-06 |
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