JP2013024158A - Fan motor drive - Google Patents

Fan motor drive Download PDF

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JP2013024158A
JP2013024158A JP2011160573A JP2011160573A JP2013024158A JP 2013024158 A JP2013024158 A JP 2013024158A JP 2011160573 A JP2011160573 A JP 2011160573A JP 2011160573 A JP2011160573 A JP 2011160573A JP 2013024158 A JP2013024158 A JP 2013024158A
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support bar
fan
air
filter
unit case
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JP5899394B2 (en
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Tomohiko Naya
智彦 納家
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To solve such a problem that a fan motor, which keeps a filter part or a flat plate member conventionally used eliminated from requirements to make weight fall down with cost reduction and takes a constitution that the filter is integrally molded into unit casing, gets turbulent flow generated between the fan and the support bar in that case when a support bar for the unit casing supporting the filter from the center of an intake is straightly arranged, and that it serves as resistance of the air flow and causes pressure fluctuation to invite wind roar noise, unpleasant to the ear, of the fan in a high peak.SOLUTION: The support bar, which shows a shape of tripartition as viewed from direction toward the air intake of a suction mouth, in the direction of moving toward the center of an outlet, is deflected in the direction toward the air flow to utilize the support bar as a rectifying member, and to dissolve the turbulent flow generated between the fan and the support bar, and therefore silencing effect for suppressing the wind roar noise, unpleasant to the ear, of the fan in the high peak can be obtained.

Description

本発明は、ファンモータの吸込口にフィルタを配置したファンモータ駆動装置に関する。   The present invention relates to a fan motor driving device in which a filter is disposed at a suction port of a fan motor.

従来、ファンモータなどのファンモータ駆動装置では、ユニットケース内に吸入される空気を濾過するためにユニットケースとは別部品のフィルタ部を形成しそれを固定する構成が提案されている。   2. Description of the Related Art Conventionally, a fan motor driving device such as a fan motor has been proposed in which a filter part that is a separate part from the unit case is formed and the unit is fixed in order to filter the air sucked into the unit case.

この構成には様々な提案がなされており、ファンモータの吸込口の近傍にフィルタ部を配置した従来例を図５に示す。この図５に示すように、従来の技術では、ユニットケースとは別体に設けられたフィルタ部をユニットケースに設けられたフックに回し止める構成を採用していた（特許文献なし）。   Various proposals have been made for this configuration, and FIG. 5 shows a conventional example in which a filter portion is disposed in the vicinity of the suction port of the fan motor. As shown in FIG. 5, the conventional technique employs a configuration in which a filter portion provided separately from the unit case is locked to a hook provided in the unit case (no patent document).

また、吸込口とフィルタの間に対角線上に伸びる支持部材を配置する構造（例えば、特許文献１参照）などがある。   Further, there is a structure in which a support member extending diagonally between the suction port and the filter is disposed (for example, see Patent Document 1).

図６に上記特許文献１に開示された吸込口に支持部材が設けられた車両空調用送風ユニットの一例を示す。図６において、フィルタを支える略十字を呈した４枚の平板部材のうちの一枚の平板部材を、スクロール壁において遠心ファンに最も接近するノーズ位置αから、スクロール壁内で空気が流れる方向へ４０°の範囲に設置することで、支持部材が無い状態以上に吸入圧損を小さくでき、風量低下、騒音悪化を解消できる。   FIG. 6 shows an example of a vehicle air conditioning blower unit in which a support member is provided at the suction port disclosed in Patent Document 1. In FIG. 6, one flat plate member out of four flat plate members having a substantially cross shape that supports the filter is moved from a nose position α closest to the centrifugal fan in the scroll wall to the direction in which air flows in the scroll wall. By installing in the range of 40 °, the suction pressure loss can be reduced more than the state where there is no support member, and the air volume reduction and noise deterioration can be eliminated.

特許第４１７８９９２号公報Japanese Patent No. 4178992

近年、電装分野に用いられ、車内の電動化が進むにつれその需要が大きくなってきた車両用空調ファンモータは、ウエイトダウンのための小型化、薄型化およびコストダウンの要求が強い。そこで、図５および図６に示すように、従来用いていたフィルタ部または、平板部材を廃止し、ユニットケースにフィルタを一体に成型することでウエイトダウンとコストダウンを図ったものがある。   2. Description of the Related Art In recent years, vehicle air conditioning fan motors that have been used in the field of electrical equipment and have become increasingly demanding as the interior of a vehicle is electrified, have a strong demand for size reduction, thickness reduction, and cost reduction for weight down. Therefore, as shown in FIG. 5 and FIG. 6, there has been a case where the conventionally used filter portion or flat plate member is eliminated and the filter is integrally formed in a unit case to reduce weight and cost.

図７に、従来のユニットケースに支持バーが一体に成型された一例を示す。   FIG. 7 shows an example in which a support bar is formed integrally with a conventional unit case.

図７に示すように、ユニットケースの成型状態を加味し、吸込口中央からフィルタを支持するユニットケースの支持バーを真っ直ぐに配置した場合、ファンと支持バーの間に乱流が発生し、それが空気の流れの抵抗となって圧力変動を引き起こし、耳障りとなる高いピークのファンの風切り騒音を招くという課題がある。   As shown in FIG. 7, when the unit case support bar is placed straight from the center of the suction port, taking into account the molded state of the unit case, turbulence is generated between the fan and the support bar. However, there is a problem that the wind flow noise of a high-peak fan that causes a fluctuation in pressure due to the resistance of the air flow and becomes annoying is caused.

本発明は、このような従来の課題を解決するものであり、支持バーを整流部材として利用して、ファンと支持バーの間に発生する乱流を解消することで静音効果を有する機構を設けたファンモータ駆動装置を実現することを目的とする。   The present invention solves such a conventional problem, and a mechanism having a silent effect is provided by eliminating the turbulent flow generated between the fan and the support bar by using the support bar as a rectifying member. Another object is to realize a fan motor driving device.

上記課題を解決するために本発明は、ユニットケースには吸込口中央からフィルタを支持する支持バーが形状され、前記吸込口の空気吸込方向から見た形状は吹出口中央に向かう方向に対し３分割を呈するように配置されたものであり、３分割を呈した前記支持バーは、前記ユニットケース内において空気が流れる方向へ２５°±５°屈折させた構成からなるファンモータ駆動装置である。   In order to solve the above-mentioned problems, the present invention has a unit case in which a support bar for supporting a filter is formed from the center of the suction port, and the shape of the suction port viewed from the air suction direction is 3 in the direction toward the center of the blow-out port. The support bar which is arranged so as to divide into three parts and is divided into three parts is a fan motor driving device having a configuration in which the support bar is refracted by 25 ° ± 5 ° in the air flow direction in the unit case.

本発明によれば、支持バーを整流部材として利用して、ファンと支持バーの間に発生する乱流を解消することにより、耳障りとなる高いピークのファンの風切り騒音を抑制する静音効果を得ることができる。   According to the present invention, by using the support bar as a rectifying member, by eliminating the turbulent flow generated between the fan and the support bar, it is possible to obtain a silent effect for suppressing wind noise of a high-peak fan that is annoying. be able to.

本発明の実施の形態１に掛るファンモータ駆動装置の斜視図The perspective view of the fan motor drive device concerning Embodiment 1 of this invention 本発明の実施の形態１に掛るファンモータ駆動装置の構造図1 is a structural diagram of a fan motor drive device according to a first embodiment of the present invention. （ａ） 本発明の実施の形態１に掛るファンモータ駆動装置の支持バーの取付角度と騒音との関係を示すグラフ、（ｂ） 従来例のファンモータ駆動装置の支持バーの取付角度と騒音との関係を示すグラフ(A) The graph which shows the relationship between the attachment angle and noise of the support bar of the fan motor drive device concerning Embodiment 1 of this invention, (b) The attachment angle and noise of the support bar of the fan motor drive device of a prior art example Graph showing the relationship （ａ） 本発明の実施の形態１に掛る騒音ピークの発生要因を示す図、（ｂ） 従来例の騒音ピークの発生要因を示す図(A) The figure which shows the generation factor of the noise peak concerning Embodiment 1 of this invention, (b) The figure which shows the generation factor of the noise peak of a prior art example 本発明の実施の形態１に掛るファンモータ駆動装置の支持バーの長さを変形させた上視図The top view which changed the length of the support bar of the fan motor drive device concerning Embodiment 1 of this invention 従来のファンモータ駆動装置を示す構造図Structure diagram showing a conventional fan motor drive device 吸込口に支持部材が設けられた車両空調用送風ユニットの図Figure of air conditioning unit for vehicle air conditioning in which a support member is provided at the inlet 従来のユニットケースに支持バーが一体に成型された一例の図Illustration of an example of a support bar molded integrally with a conventional unit case

以下、本発明に係るファンモータ駆動装置の好適な実施の形態について添付の図面を参照しながら説明する。
（実施の形態１）
図１Ａ、図１Ｂは本発明の実施の形態１に掛るファンモータ駆動装置の斜視図および構造図である。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a fan motor driving device according to the invention will be described with reference to the accompanying drawings.
(Embodiment 1)
1A and 1B are a perspective view and a structural view of a fan motor drive device according to Embodiment 1 of the present invention.

図１Ｂにおいてファンモータ駆動装置は、内部に空気通路を形成するユニットケース１と、前記ユニットケース１の吸込口２に配置され、前記吸込口２に吸入される空気を濾過するフィルタ３と、回転に伴って前記空気通路内に空気流を発生するファン４と、前記ファン４を回転駆動するモータ部５とにより構成される。   In FIG. 1B, the fan motor drive device includes a unit case 1 that forms an air passage therein, a filter 3 that is disposed in the suction port 2 of the unit case 1 and filters air sucked into the suction port 2, and a rotation. Accordingly, the fan 4 that generates an air flow in the air passage and the motor unit 5 that rotationally drives the fan 4 are configured.

前記ユニットケース１には前記吸込口２の中央から前記フィルタ３を支持する支持バー６が形状され、前記吸込口２の空気吸込方向から見た形状は吹出口７の中央に向かう方向に対し３分割を呈するように配置されたものであり、３分割を呈した前記支持バー６は、幅２ｍｍ以下に形状され、前記ユニットケース１内において空気が流れる方向へ２５°±５°の範囲で屈折させた形状となっている。   The unit case 1 is formed with a support bar 6 that supports the filter 3 from the center of the suction port 2, and the shape of the suction port 2 viewed from the air suction direction is 3 with respect to the direction toward the center of the air outlet 7. The support bar 6, which is arranged so as to be divided, is formed to have a width of 2 mm or less and is refracted in a range of 25 ° ± 5 ° in the direction in which air flows in the unit case 1. The shape is

このファンモータ駆動装置は、ファン４が回転駆動されることによって、外気が吸込口２からファン４の内側に吸引され、ファン４の外側へファン４の回転とともに圧送される。ファン４の外側へ圧送された空気は、ユニットケース１の内部の壁に沿って吹出口７に導かれ、その吹出口７から車両用空調ユニット内に吹き出される。   In the fan motor driving device, when the fan 4 is driven to rotate, outside air is sucked into the fan 4 from the suction port 2 and is pumped to the outside of the fan 4 along with the rotation of the fan 4. The air pressure-fed outside the fan 4 is guided to the air outlet 7 along the inner wall of the unit case 1 and blown out from the air outlet 7 into the air conditioning unit for the vehicle.

フィルタ３は、複数の細い糸を編みこんで形状され、図１Ｂのユニットケース１上に示すようにユニットケース１上の吸込口２の全域に配置されるものであり、フィルタ３の落
下または、ファン４との接触を防ぐためにフィルタ３を支持する支持バー６とともにユニットケース１上を構成する樹脂部材によって一体に成型されたものである。 The filter 3 is formed by knitting a plurality of thin threads, and is disposed over the entire area of the suction port 2 on the unit case 1 as shown on the unit case 1 in FIG. 1B. In order to prevent contact with the fan 4, it is integrally molded by a resin member constituting the unit case 1 together with a support bar 6 that supports the filter 3.

また、吸込口２の開口範囲内は、支持バー６が空気の抵抗板として吸込圧損を生じさせない且つ、フィルタ３を保持するのに必要な強度を保つ板幅として２〜３ｍｍを残して切り欠く形状に設けられている。   Further, within the opening range of the suction port 2, the support bar 6 is cut out leaving 2 to 3 mm as a plate width that does not cause suction pressure loss as an air resistance plate and maintains the strength necessary for holding the filter 3. It is provided in the shape.

本実施例では、支持バー６は、吸込口の空気吸込方向から見た形状が吹出口中央に向かう方向に対し３分割を呈するように配置されたものであり、３分割を呈した支持バー６は、ユニットケース１内において空気が流れる方向へ２５°±５°屈折させたことを特徴としている。   In this embodiment, the support bar 6 is arranged so that the shape of the suction port viewed from the air suction direction is divided into three parts in the direction toward the center of the outlet, and the support bar 6 presenting the three parts is provided. Is characterized by being refracted by 25 ° ± 5 ° in the direction of air flow in the unit case 1.

図２は本発明の実施の形態１に掛るファンモータ駆動装置の支持バーの取付角度と騒音との関係を示すグラフである。また、図３は本発明の実施の形態１に掛る騒音ピークの発生要因を示す図である。   FIG. 2 is a graph showing the relationship between the mounting angle of the support bar and the noise of the fan motor driving apparatus according to the first embodiment of the present invention. FIG. 3 is a diagram showing the noise peak generation factors according to the first embodiment of the present invention.

この図２に示されるように、支持バー６を真っ直ぐに配置した場合に対し、ユニットケース１内において空気が流れる方向へ２５°±５°屈折させ配置した場合では、明らかに騒音ピークの発生の違いが見られる。騒音の発生の要因として図３に示されるように、支持バー６がファン４の曲面に対し整流板として作用するために、空気の乱流を防ぐことできる。その結果、支持バーが真っ直ぐに配置した場合よりも吸込口２に吸い込まれる空気の流れが大きく改善されて送風性能が向上したためである。   As shown in FIG. 2, when the support bar 6 is arranged straight, when it is refracted by 25 ° ± 5 ° in the direction of air flow in the unit case 1, the noise peak is clearly generated. There is a difference. As shown in FIG. 3 as a cause of noise generation, the support bar 6 acts as a current plate on the curved surface of the fan 4, so that air turbulence can be prevented. As a result, the flow of air sucked into the suction port 2 is greatly improved as compared with the case where the support bar is arranged straight, and the blowing performance is improved.

上述したように、本実施例のファンモータ駆動装置は、フィルタ部の廃止によるウエイトダウンおよびコストダウンを図ることができるとともに、支持バー６を真っ直ぐに配した状態よりも空気の流れを改善することにより、耳障りとなる高いピークのファンの風切り騒音を解消できる。   As described above, the fan motor driving device according to the present embodiment can reduce the weight and cost by eliminating the filter unit, and can improve the air flow as compared with the state in which the support bar 6 is arranged straight. Therefore, it is possible to eliminate wind noise from high-peak fans that are annoying.

図４は本発明の実施の形態１に掛るファンモータ駆動装置の支持バーの長さを変形させた上視図である。   FIG. 4 is a top view in which the length of the support bar of the fan motor drive device according to Embodiment 1 of the present invention is modified.

この図４に示されるように、支持バー６の吸込口２の中央から屈折させるまでの長さをａとし、屈折させた箇所からユニットケース１に繋がるまでの長さをｂとした時、ａおよびｂの長さを任意の長さに変形させたとしても上記と同様の効果を得ることは言うまでもない。   As shown in FIG. 4, when the length from the center of the suction port 2 of the support bar 6 to be refracted is a, and the length from the refracted portion to the unit case 1 is b, It goes without saying that the same effect as described above can be obtained even if the lengths b and b are changed to arbitrary lengths.

シート空調ファンモータ等、小型化、薄型化に加え、低騒音、低コスト化が要求される車両用送風装置等に用いられるファンモータに有用である。   It is useful for fan motors used in vehicle air blowers and the like that require low noise and low cost in addition to miniaturization and thinning, such as seat air conditioning fan motors.

１ ユニットケース
２ 吸込口
３ フィルタ
４ ファン
５ モータ部
６ 支持バー
７ 吹出口 1 Unit case 2 Suction port 3 Filter 4 Fan 5 Motor part 6 Support bar 7 Air outlet

Claims (2)

内部に空気通路を形成するユニットケースと、前記ユニットケースの吸込口に配置され、前記吸込口に吸入される空気を濾過するフィルタと、回転に伴って空気通路内に空気流を発生するファンと、前記ファンを回転駆動するモータ部とを備えた車両用送風装置において、前記ユニットケースには前記吸込口中央から前記フィルタを支持する支持バーが形状され、前記吸込口の空気吸込方向から見た形状は吹出口中央に向かう方向に対し３分割を呈するように配置されたものであり、３分割を呈した前記支持バーは、前記ユニットケース内において空気が流れる方向へ屈折させたことを特徴とするファンモータ駆動装置。 A unit case that forms an air passage therein, a filter that is disposed in a suction port of the unit case and that filters air sucked into the suction port, and a fan that generates an air flow in the air passage as it rotates In the vehicle air blower including the motor unit that rotationally drives the fan, the unit case is formed with a support bar that supports the filter from the center of the suction port, as viewed from the air suction direction of the suction port. The shape is arranged so as to present three divisions with respect to the direction toward the center of the outlet, and the support bar having the three divisions is refracted in the direction in which air flows in the unit case. Fan motor drive device. 前記支持バーは、前記ユニットケース内において空気が流れる方向へ２５°±５°屈折させたことを特徴とする請求項１記載のファンモータ駆動装置。 2. The fan motor drive device according to claim 1, wherein the support bar is refracted by 25 [deg.] ± 5 [deg.] In a direction in which air flows in the unit case.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113404715A (en) * 2021-08-17 2021-09-17 南通市吉腾鼓风机有限公司 Air blower for air conditioning
CN114741775A (en) * 2022-06-13 2022-07-12 山东科技大学 Method for calculating horizontal limit bearing capacity of composite loaded suction type foundation

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Publication number Priority date Publication date Assignee Title
JPS5429862U (en) * 1977-07-29 1979-02-27
JPS60130114U (en) * 1984-02-13 1985-08-31 カルソニックカンセイ株式会社 fan device
JPH0226800U (en) * 1988-08-05 1990-02-21
JPH06280799A (en) * 1993-03-29 1994-10-04 Nippondenso Co Ltd Blast device
JPH10274198A (en) * 1997-01-31 1998-10-13 Denso Corp Centrifugal blower
JP4178992B2 (en) * 2003-02-20 2008-11-12 株式会社デンソー Ventilation unit for vehicle air conditioning

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5429862U (en) * 1977-07-29 1979-02-27
JPS60130114U (en) * 1984-02-13 1985-08-31 カルソニックカンセイ株式会社 fan device
JPH0226800U (en) * 1988-08-05 1990-02-21
JPH06280799A (en) * 1993-03-29 1994-10-04 Nippondenso Co Ltd Blast device
JPH10274198A (en) * 1997-01-31 1998-10-13 Denso Corp Centrifugal blower
JP4178992B2 (en) * 2003-02-20 2008-11-12 株式会社デンソー Ventilation unit for vehicle air conditioning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113404715A (en) * 2021-08-17 2021-09-17 南通市吉腾鼓风机有限公司 Air blower for air conditioning
CN114741775A (en) * 2022-06-13 2022-07-12 山东科技大学 Method for calculating horizontal limit bearing capacity of composite loaded suction type foundation

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