JPH09240249A - Blower fan motor - Google Patents

Blower fan motor

Info

Publication number
JPH09240249A
JPH09240249A JP8048805A JP4880596A JPH09240249A JP H09240249 A JPH09240249 A JP H09240249A JP 8048805 A JP8048805 A JP 8048805A JP 4880596 A JP4880596 A JP 4880596A JP H09240249 A JPH09240249 A JP H09240249A
Authority
JP
Japan
Prior art keywords
brush
blower fan
fan motor
cooling air
opening area
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.)
Granted
Application number
JP8048805A
Other languages
Japanese (ja)
Other versions
JP3455358B2 (en
Inventor
Setsuya Uchino
節哉 内野
Kazuhiro Suzuki
和裕 鈴木
Kazuhiro Irie
一博 入江
Masashi Arai
政志 荒井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Calsonic Corp
Nissan Motor Co Ltd
Original Assignee
Calsonic Corp
Nissan Motor Co Ltd
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 Calsonic Corp, Nissan Motor Co Ltd filed Critical Calsonic Corp
Priority to JP04880596A priority Critical patent/JP3455358B2/en
Publication of JPH09240249A publication Critical patent/JPH09240249A/en
Application granted granted Critical
Publication of JP3455358B2 publication Critical patent/JP3455358B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To minimize vibration noise transmitted to an interior and dust passing through a cooling wind discharge port while maximally suppressing deterioration of a brush due to heat. SOLUTION: In a vehicle air conditioning blower fan motor provided with a brush, case bodies 21, 26, 27, in each of which a cooling wind inlet EN is formed on one end side while a cooling wind outlet EX is formed on the other end side, and a brush 23 which is supported by means of a brush base 22 fixed in these case bodies so as to be brought into pressure contact with a commutator 25 integrated with a rotary shaft 24, are provided, while a fan is installed in the rotary shaft 24 protruded from the other end sides of the case bodies. The brush 23 is supported on the cooling wind inlet EN side of the brush base 22, while an opening area of the cooling wind outlet EX is set to be 7-15% of the maximum opening area which can be formed on the other end sides of the case bodies.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、車両用空調装置に
用いられるブロアファンモータに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower fan motor used in a vehicle air conditioner.

【0002】[0002]

【従来の技術】この種の従来のブロアファンモータとし
て、例えば図9,図10に示すようなものが知られてい
る。図9,図10において、1は有底の略円筒状の本体
ケースであり、その上部開口1aを覆うように上部ブラ
ケット5が取付けられている。このブラケット5にはブ
ラシベース2を介して一対のブラシ3(一方のみ図示)
が互いに対向するよう支持され、ブラシ3の先端は本体
ケース1に支持された回転軸4と一体の整流子5に押圧
接触されている。回転軸4の一端は上部ブラケット5の
上端から突出され、ここにファン(不図示)が装着され
る。ブラシ3および整流子5を介して不図示のコイルが
通電されると、回転軸4が回転してファンが回転し、こ
れにより外気あるいは内気が不図示のクーリングユニッ
ト側に導かれる。この形態のブロアファンモータは、内
部に収納される部品を積み上げ的に組み付けていくこと
ができるので、組み付け作業性に優れる。
2. Description of the Related Art As a conventional blower fan motor of this type, those shown in FIGS. 9 and 10 are known. In FIGS. 9 and 10, reference numeral 1 is a bottomed, substantially cylindrical body case, and an upper bracket 5 is attached to cover the upper opening 1a. The bracket 5 has a pair of brushes 3 (only one is shown) via the brush base 2.
Are supported so as to face each other, and the tips of the brushes 3 are pressed into contact with the commutator 5 that is integral with the rotating shaft 4 supported by the main body case 1. One end of the rotating shaft 4 is projected from the upper end of the upper bracket 5, and a fan (not shown) is attached here. When a coil (not shown) is energized via the brush 3 and the commutator 5, the rotating shaft 4 rotates and the fan rotates, whereby external air or internal air is guided to the cooling unit side (not shown). The blower fan motor of this form is excellent in workability in assembling because the components housed inside can be stacked and assembled.

【0003】一方、この種のブロアファンモータでは、
駆動中にブラシ3が整流子5上を摺動するため、その摺
動摩擦熱によりブラシ3が加熱される。そこで、本体ケ
ース1の下部開口1bを覆う下部ブラケット7に冷却風
導入口ENを設ける一方、本体ケース1の上端部開口1
aを覆う上部ブラケット6に空気排出口EXを設け、フ
ァンで送風された空気の一部を冷却風導入口ENから本
体ケース1内に導入し、ブラシ3などの冷却に寄与した
後、空気排出口EXから外部に排出するようにしてい
る。
On the other hand, in this type of blower fan motor,
Since the brush 3 slides on the commutator 5 during driving, the sliding frictional heat heats the brush 3. Therefore, the cooling air inlet EN is provided in the lower bracket 7 that covers the lower opening 1b of the body case 1, while the upper end opening 1 of the body case 1 is provided.
An air outlet EX is provided in the upper bracket 6 that covers a, and a part of the air blown by the fan is introduced into the main body case 1 from the cooling air inlet EN to contribute to the cooling of the brush 3 and the like, and then the air is exhausted. It is designed to be discharged to the outside from the exit EX.

【0004】[0004]

【発明が解決しようとする課題】従来のブロアファンモ
ータでは、図10の如くブラシベース2の上部にブラシ
3が支持される構成のため、ブラシ3の冷却効率が悪
く、ブラシ3を十分に冷却するためにには冷却風の流量
を増加させる必要がある。そこで、冷却風排出口EXの
開口面積を本体ケース上部開口1aの面積の約25%と
比較的大きくし、冷却風の流通性を向上させている。し
かしながら、排出口EXの開口面積を大きくすると、ブ
ラシ3が整流子5上を摺動する際に発生する騒音が車内
に大きく伝わり、乗員が不快感を感ずるとともに、排出
口EXを通過する粉塵が抑制されないため、車室内の清
浄化に悪影響を与える。
In the conventional blower fan motor, since the brush 3 is supported on the upper part of the brush base 2 as shown in FIG. 10, the cooling efficiency of the brush 3 is poor and the brush 3 is sufficiently cooled. In order to do so, it is necessary to increase the flow rate of cooling air. Therefore, the opening area of the cooling air discharge port EX is made relatively large, about 25% of the area of the main body case upper opening 1a, to improve the flowability of the cooling air. However, if the opening area of the exhaust port EX is increased, the noise generated when the brush 3 slides on the commutator 5 is greatly transmitted to the inside of the vehicle, causing the passenger to feel uncomfortable and the dust passing through the exhaust port EX. Since it is not suppressed, it adversely affects the cleaning of the passenger compartment.

【0005】本発明の目的は、熱によるブラシの劣化を
極力抑えつつ冷却風排出口を通過して車室内へ伝わる摺
動音および排出口を通過する粉塵の抑制を図ったブロア
ファンモータを提供することにある。
An object of the present invention is to provide a blower fan motor in which deterioration of the brush due to heat is suppressed as much as possible and sliding noise transmitted through the cooling air exhaust port to the passenger compartment and dust passing through the exhaust port are suppressed. To do.

【0006】[0006]

【課題を解決するための手段】一実施の形態を示す図1
〜3に対応づけて説明すると、本発明は、一端側に冷却
風導入口ENが形成されるとともに、他端側に冷却風排
出口EXが形成された筐体21,26,27と、この筐
体内の上記他端側に固着されるブラシベース22に支持
され、回転軸24と一体の整流子25に押圧接触される
ブラシ23とを備え、筐体の他端側から突出された回転
軸24にファン30が装着される車両空調用ブラシ付き
ブロアファンモータに適用される。そして、ブラシ23
をブラシベース22の冷却風導入口ENを向く面側に支
持するとともに、冷却風排出口EXの開口面積が、筐体
の他端側に形成可能な最大開口面積の7〜15%となる
ようにし、これにより上記問題点を解決する。請求項2
の発明は、筒状の本体ケース21と、この本体ケースの
ファン取付け側の開口を覆うように取付けられたブラケ
ット26とを有し、冷却風排出口EXをブラケット26
に形成したものである。請求項3の発明は、冷却風排出
口を複数の孔から構成したものである。請求項4の発明
は、複数の孔を回転軸を中心とする同心円上に所定角度
間隔で形成したものである。
FIG. 1 shows an embodiment of the present invention.
Describing in association with 3 to 3, the present invention relates to the casings 21, 26, 27 in which the cooling air introduction port EN is formed on one end side and the cooling air discharge port EX is formed on the other end side. A rotating shaft that is supported by a brush base 22 that is fixed to the other end of the housing and that includes a brush 23 that is pressed into contact with a commutator 25 that is integral with the rotating shaft 24 and that protrudes from the other end of the housing. It is applied to a blower fan motor with a brush for vehicle air conditioning in which a fan 30 is attached to 24. And the brush 23
Is supported on the surface side of the brush base 22 facing the cooling air inlet EN, and the opening area of the cooling air outlet EX is 7 to 15% of the maximum opening area that can be formed on the other end side of the housing. This solves the above problems. Claim 2
Of the present invention has a cylindrical main body case 21 and a bracket 26 attached so as to cover an opening of the main body case on the fan mounting side, and the cooling air discharge port EX is attached to the bracket 26.
It is formed in. According to the third aspect of the invention, the cooling air discharge port is composed of a plurality of holes. According to a fourth aspect of the present invention, a plurality of holes are formed on a concentric circle centered on the rotation axis at predetermined angular intervals.

【0007】なお、本発明の構成を説明する上記課題を
解決するための手段の項では、本発明を分かり易くする
ために実施の形態の図を用いたが、これにより本発明が
実施の形態に限定されるものではない。
[0007] In the section of the means for solving the above-mentioned problems, which explains the configuration of the present invention, the drawings of the embodiments are used to facilitate understanding of the present invention. However, the present invention is not limited to this.

【0008】[0008]

【発明の効果】本発明によれば、ブラシをブラシベース
の冷却風導入口側に支持するようにしたので、ブラシベ
ースの上部にブラシを支持する従来と比べてブラシの冷
却効率が向上し、冷却風排出口の開口面積が小さくても
熱によるブラシの劣化を極力抑えることができる。ま
た、冷却風排出口の開口面積が、筐体の他端側に形成可
能な最大開口面積の7〜15%となるようにしたので、
車室内へ伝わる上記摺動音および排出口を通過する粉塵
の抑制が図れる。
According to the present invention, since the brush is supported on the side of the cooling air introducing port of the brush base, the cooling efficiency of the brush is improved as compared with the conventional case in which the brush is supported on the upper part of the brush base. Even if the opening area of the cooling air outlet is small, the deterioration of the brush due to heat can be suppressed as much as possible. Moreover, since the opening area of the cooling air discharge port is set to 7 to 15% of the maximum opening area that can be formed on the other end side of the housing,
It is possible to suppress the sliding noise transmitted to the vehicle interior and dust passing through the discharge port.

【0009】[0009]

【発明の実施の形態】図1〜図8により本発明の一実施
の形態を説明する。図1は本実施の形態における車両用
空調装置のブロアユニットを示す概略図である。ブロア
ユニットBUの下部にはブロアファンモータ100が取
付けられ、その回転軸24にファン30が取付けられ
る。ブロアファンファンモータ100によりファン30
が回転すると、外気あるいは内気(車室内空気)がブロ
アユニットBU内に導入され、不図示のクーリングユニ
ットに導かれる。また、一部の空気はダクト11を介し
てブロアファンモータ100の下部に導かれ、モータ1
00内部の冷却に寄与する。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram showing a blower unit of a vehicle air conditioner according to the present embodiment. A blower fan motor 100 is attached to the lower portion of the blower unit BU, and a fan 30 is attached to the rotary shaft 24 thereof. Blower fan Fan motor 100 for fan 30
When is rotated, outside air or inside air (air inside the vehicle) is introduced into the blower unit BU and guided to a cooling unit (not shown). In addition, a part of the air is guided to the lower part of the blower fan motor 100 via the duct 11,
00 contributes to cooling of the inside.

【0010】図2はブロアファンモータ100の構造を
示す上面図、図3はその縦断面図、図4はファン30が
取付けられた状態を示す要部拡大図である。21は略円
筒状の本体ケースであり、この本体ケース21の下端部
開口21bの一部を覆うように下部ブラケット27が取
付けられている。開口21bのうちブラケット27で覆
われない部分が冷却風導入口ENとされる。本体ケース
21内には上記回転軸24が回転可能に軸支され、この
回転軸24には、周面に導体が所定間隔おきに固着され
た円筒状の整流子25が取付けられている。整流子25
の各導体にコイル(不図示)が接続される。
FIG. 2 is a top view showing the structure of the blower fan motor 100, FIG. 3 is a vertical cross-sectional view thereof, and FIG. 4 is an enlarged view of essential parts showing a state in which the fan 30 is attached. Reference numeral 21 denotes a substantially cylindrical main body case, and a lower bracket 27 is attached so as to cover a part of the lower end opening 21b of the main body case 21. A portion of the opening 21b that is not covered with the bracket 27 serves as a cooling air inlet EN. The rotary shaft 24 is rotatably supported in the main body case 21, and a cylindrical commutator 25 having conductors fixed to the peripheral surface at predetermined intervals is attached to the rotary shaft 24. Commutator 25
A coil (not shown) is connected to each conductor.

【0011】本体ケース21の上部開口21aにはブラ
ケット27が取付けられ、このブラケット27に固着さ
れたブラシベース22の下部に一対のブラシ23が互い
に対向して、かつブラケット27の径方向に移動可能に
取付けられている。各ブラシ23は、ブラシベース22
との間に設けられたばね28(図4)を介して整流子2
5側に付勢され、先端が整流子25の周面に接触してい
る。また上部ブラケット27には、図2に示すように複
数の冷却風排出孔EXが、回転軸24を中心とする同心
円上に所定間隔で開けられている。個々の孔EXの面積
をS0、孔EXの総個数をn、本体ケース21の上部開
口の面積をSaとすると、
A bracket 27 is attached to the upper opening 21a of the main body case 21, and a pair of brushes 23 oppose each other under the brush base 22 fixed to the bracket 27 and are movable in the radial direction of the bracket 27. Installed on. Each brush 23 has a brush base 22.
Commutator 2 via a spring 28 (FIG. 4) provided between
The tip end is in contact with the peripheral surface of the commutator 25 by being urged to the 5 side. Further, as shown in FIG. 2, a plurality of cooling air discharge holes EX are formed in the upper bracket 27 on a concentric circle centered on the rotation shaft 24 at predetermined intervals. When the area of each hole EX is S0, the total number of holes EX is n, and the area of the upper opening of the main body case 21 is Sa,

【数1】α=(S0×n)/Sa=7〜15(%) となるように開口面積比αが設定されている。このα=
7〜15(%)は本発明者らの実験により導き出された
値であり、その詳細については後述する。
## EQU1 ## The opening area ratio α is set so that α = (S0 × n) / Sa = 7 to 15 (%). This α =
7 to 15 (%) is a value derived by the experiments of the present inventors, the details of which will be described later.

【0012】以上のように構成されたブロアファンモー
タ100において、ブラシ23および整流子25を介し
てコイルに通電することにより回転軸24が回転し、回
転軸24に取付けられたファン30が回転する。ファン
30の回転により、上述したように外気あるいは内気が
ブロアユニットBU内に導入されて不図示のクーリング
ユニットに導かれるとともに、一部の空気はダクト11
を通って冷却風としてブロアファンモータ100の下部
に導かれる。この冷却風は、ブロアファンモータ100
の冷却風導入口ENから本体ケース21内に導かれ、冷
却風排出孔EXから外部に排出される。冷却風が本体ケ
ース21内を流通する際にブラシ23などの部材が冷却
される。特に本実施の形態では、ブラシ23がブラシベ
ース22の下部に取付けられているので、従来と比べて
ブラシ23の冷却効率がよい。
In the blower fan motor 100 configured as described above, the rotating shaft 24 is rotated by energizing the coil through the brush 23 and the commutator 25, and the fan 30 attached to the rotating shaft 24 is rotated. . As described above, the rotation of the fan 30 introduces the outside air or the inside air into the blower unit BU and guides it to a cooling unit (not shown).
And is guided to the lower part of the blower fan motor 100 as a cooling air. This cooling air is supplied to the blower fan motor 100.
Is introduced into the main body case 21 from the cooling air introduction port EN and is discharged to the outside from the cooling air discharge hole EX. When the cooling air flows through the main body case 21, members such as the brush 23 are cooled. In particular, in the present embodiment, the brush 23 is attached to the lower portion of the brush base 22, so that the cooling efficiency of the brush 23 is better than in the conventional case.

【0013】ところで、従来技術でも述べたが、この種
のブロアファンモータ100にはブラシ23の加熱の他
に排出孔EXを通過する粉塵および騒音の問題がある。
これらの問題は、全て本体ケース1の上部開口21aの
面積と冷却風排出孔EXの総開口面積(実際の開口面
積)との比αに影響を受ける。そこで本発明者らは、最
適な開口面積比αを求めて種々の実験を行い、図5〜図
7に示すような結果を得た。
By the way, as described in the prior art, the blower fan motor 100 of this kind has a problem of dust and noise passing through the discharge hole EX in addition to the heating of the brush 23.
All of these problems are affected by the ratio α between the area of the upper opening 21a of the main body case 1 and the total opening area (actual opening area) of the cooling air discharge holes EX. Therefore, the inventors obtained various results by obtaining the optimum opening area ratio α and obtained the results shown in FIGS. 5 to 7.

【0014】図5は横軸に開口面積比α、縦軸にブラシ
23の温度をとったものである。図から分かるように、
開口面積比αが7%以上のときには、冷却効果が高いた
めにブラシ温度は問題にならないほど低いが、7%を下
回ると急激に上昇し、5%付近では耐久限界温度を超え
てしまう。したがって、開口面積比αは安全性を見込ん
で7%以上とするのが望ましい。
In FIG. 5, the horizontal axis represents the opening area ratio α and the vertical axis represents the temperature of the brush 23. As you can see from the figure,
When the opening area ratio α is 7% or more, the cooling effect is high and the brush temperature is so low as to be unproblematic. Therefore, it is desirable that the opening area ratio α be 7% or more in consideration of safety.

【0015】図6は横軸に開口面積比α、縦軸に排出口
EXを通過する粉塵の量をとったものである。図から分
かるように、通過する粉塵の量は開口面積比αが15%
以下では比較的少ないが、15%を超えると急激に上昇
する。したがって開口面積比αは、15%以下とするこ
とが望ましい。
In FIG. 6, the horizontal axis represents the opening area ratio α, and the vertical axis represents the amount of dust passing through the discharge port EX. As can be seen from the figure, the amount of dust passing through the opening area ratio α is 15%.
It is relatively small below, but rises sharply when it exceeds 15%. Therefore, it is desirable that the opening area ratio α be 15% or less.

【0016】図7は横軸に開口面積比α、縦軸にブラシ
23と整流子25との摺動により発生する騒音(車室内
における騒音)レベルをとったものである。図から分か
るように、騒音は開口面積比αが5%程度で発生し、以
降はαの上昇に伴って直線的に増加するが、α=7%付
近では騒音はかなり小さい。本発明者らは、本実施の形
態におけるブロアファンモータ(α=7%)と従来のブ
ロアファンモータ(α=25%)とを用いて同一の騒音
試験を繰返し行った結果、図8のような度数分布を得
た。これによれば、本実施の形態におけるモータの方が
全体的に騒音が低く、また平均値同士を比較した場合で
も約14%の騒音低減が達成できた。特に本実施の形態
では、冷却風排出孔EXを同心円上に複数個設けたの
で、回転軸24を支える上部ブラケットの強度を上げる
ことができ、また、内部の熱も一様に排出できるので耐
熱上も有利である。
In FIG. 7, the horizontal axis represents the opening area ratio α, and the vertical axis represents the noise level (noise in the passenger compartment) generated by the sliding of the brush 23 and the commutator 25. As can be seen from the figure, the noise is generated when the opening area ratio α is about 5% and increases linearly with the increase of α thereafter, but the noise is considerably small around α = 7%. The present inventors repeated the same noise test using the blower fan motor (α = 7%) of this embodiment and the conventional blower fan motor (α = 25%), and as a result, as shown in FIG. The frequency distribution was obtained. According to this, the motor according to the present embodiment has lower noise as a whole, and the noise reduction of about 14% can be achieved even when the average values are compared. In particular, in the present embodiment, since the plurality of cooling air discharge holes EX are provided on the concentric circles, the strength of the upper bracket that supports the rotating shaft 24 can be increased, and the internal heat can be uniformly discharged, so that the heat resistance can be improved. The above is also advantageous.

【0017】以上の実施の形態では、本体ケース21,
上部ブラケット26および下部ブラケット27が筐体を
構成する。なお、空気排出孔はα=7〜15%を満たせ
ばよく、その個数,形状,配置位置などは実施の形態に
限定されない。
In the above embodiment, the body case 21,
The upper bracket 26 and the lower bracket 27 form a housing. The air discharge holes need only satisfy α = 7 to 15%, and the number, shape, arrangement position, etc. of the air discharge holes are not limited to those in the embodiment.

【図面の簡単な説明】[Brief description of drawings]

【図1】一実施の形態における車両用空調装置のブロア
ユニットを示す概略図。
FIG. 1 is a schematic view showing a blower unit of a vehicle air conditioner according to an embodiment.

【図2】ブロアファンモータの上面図。FIG. 2 is a top view of a blower fan motor.

【図3】ブロアファンモータの縦断面図であり、左半分
が図2のIIIa方向から、右半分が図2のIIIb方向から
それぞれ見た図である。
3 is a vertical cross-sectional view of a blower fan motor, in which the left half is a view seen from the direction IIIa in FIG. 2 and the right half is a view seen from the direction IIIb in FIG.

【図4】ブロアファンモータの要部拡大図。FIG. 4 is an enlarged view of a main part of a blower fan motor.

【図5】冷却風排出口の開口面積比αに対するブラシ温
度を示す図。
FIG. 5 is a diagram showing a brush temperature with respect to an opening area ratio α of a cooling air discharge port.

【図6】上記αに対する冷却風排出口の粉塵通過量を示
す図。
FIG. 6 is a diagram showing the amount of dust passing through the cooling air outlet with respect to α.

【図7】上記αに対する騒音レベルを示す図。FIG. 7 is a diagram showing a noise level for α.

【図8】実施の形態および従来のブロアファンモータに
おける騒音の度数分布を示す図。
FIG. 8 is a diagram showing a frequency distribution of noise in the embodiment and the conventional blower fan motor.

【図9】従来のブロアファンモータを示す上面図。FIG. 9 is a top view showing a conventional blower fan motor.

【図10】図9のブロアファンモータの縦断面図であ
り、左半分が図9のXa方向から、右半分が図9のXb
方向からそれぞれ見た図である。
10 is a vertical cross-sectional view of the blower fan motor of FIG. 9, where the left half is from the Xa direction in FIG. 9 and the right half is Xb in FIG.
It is the figure seen from each direction.

【符号の説明】[Explanation of symbols]

21 本体ケース 22 ブラシベース 23 ブラシ 24 回転軸 25 整流子 26 上部ブラケット 27 下部ブラケット 30 ファン 100 ブロアファンモータ BU ブロアユニット EN 冷却風導入口 EX 冷却風排出孔 21 Body Case 22 Brush Base 23 Brush 24 Rotating Shaft 25 Commutator 26 Upper Bracket 27 Lower Bracket 30 Fan 100 Blower Fan Motor BU Blower Unit EN Cooling Air Inlet EX Cooling Air Discharge Hole

───────────────────────────────────────────────────── フロントページの続き (72)発明者 入江 一博 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 (72)発明者 荒井 政志 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiro Irie 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Masashi Arai 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 一端側に冷却風導入口が形成されるとと
もに、他端側に冷却風排出口が形成された筐体と、この
筐体内の前記他端側に固着されるブラシベースに支持さ
れ、回転軸と一体の整流子に押圧接触されるブラシとを
備え、前記筐体の前記他端側から突出された前記回転軸
にファンが装着される車両空調用ブラシ付きブロアファ
ンモータにおいて、 前記ブラシは前記ブラシベースの前記冷却風導入口を向
く面側に支持されるとともに、 前記冷却風排出口の開口面積が、前記筐体の前記他端側
に形成可能な最大開口面積の7〜15%となるようにし
たことを特徴とするブロアファンモータ。
1. A housing having a cooling air inlet formed at one end and a cooling air outlet at the other end, and a brush base fixed to the other end in the housing. A blower fan motor for a vehicle air conditioner, comprising a rotating shaft and a brush that is pressed into contact with a commutator integrated with the rotating shaft, and a fan is attached to the rotating shaft protruding from the other end side of the housing. The brush is supported on the side of the brush base that faces the cooling air inlet, and the opening area of the cooling air outlet is 7 to 7 of the maximum opening area that can be formed on the other end side of the housing. Blower fan motor characterized by being set to 15%.
【請求項2】 前記筐体は、筒状の本体ケースと、この
本体ケースのファン取付け側の開口を覆うように取付け
られたブラケットとを有し、前記冷却風排出口は、前記
ブラケットに形成されていることを特徴とする請求項1
に記載のブロアファンモータ。
2. The housing has a tubular main body case and a bracket attached so as to cover an opening of the main body case on the fan attachment side, and the cooling air discharge port is formed in the bracket. Claim 1 characterized by the above.
Blower fan motor described in.
【請求項3】 前記冷却風排出口は、複数の孔から成る
ことを特徴とする請求項2に記載のブロアファンモー
タ。
3. The blower fan motor according to claim 2, wherein the cooling air exhaust port includes a plurality of holes.
【請求項4】 前記複数の孔は、前記回転軸を中心とす
る同心円上に所定角度間隔で形成されていることを特徴
とする請求項3に記載のブロアファンモータ。
4. The blower fan motor according to claim 3, wherein the plurality of holes are formed on a concentric circle having the rotation axis as a center at predetermined angular intervals.
JP04880596A 1996-03-06 1996-03-06 Blower fan motor Expired - Fee Related JP3455358B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04880596A JP3455358B2 (en) 1996-03-06 1996-03-06 Blower fan motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04880596A JP3455358B2 (en) 1996-03-06 1996-03-06 Blower fan motor

Publications (2)

Publication Number Publication Date
JPH09240249A true JPH09240249A (en) 1997-09-16
JP3455358B2 JP3455358B2 (en) 2003-10-14

Family

ID=12813434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04880596A Expired - Fee Related JP3455358B2 (en) 1996-03-06 1996-03-06 Blower fan motor

Country Status (1)

Country Link
JP (1) JP3455358B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012510245A (en) * 2008-11-24 2012-04-26 ブローゼ・ファールツォイクタイレ・ゲーエムベーハー・ウント・コンパニ・コマンディットゲゼルシャフト・ヴュルツブルク Drive motor with integrated cooling means
JP2019189041A (en) * 2018-04-25 2019-10-31 株式会社デンソー Vehicle air conditioner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5322205U (en) * 1976-08-02 1978-02-24
JPH02223354A (en) * 1989-02-22 1990-09-05 Calsonic Corp Fan motor of automobile blower
JPH0587098A (en) * 1991-09-26 1993-04-06 Sanyo Electric Co Ltd Electric motor
JPH06211035A (en) * 1993-01-20 1994-08-02 Hitachi Ltd Small motor and blower using this motor
JPH0677465U (en) * 1993-04-13 1994-10-28 アスモ株式会社 Blower device for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5322205U (en) * 1976-08-02 1978-02-24
JPH02223354A (en) * 1989-02-22 1990-09-05 Calsonic Corp Fan motor of automobile blower
JPH0587098A (en) * 1991-09-26 1993-04-06 Sanyo Electric Co Ltd Electric motor
JPH06211035A (en) * 1993-01-20 1994-08-02 Hitachi Ltd Small motor and blower using this motor
JPH0677465U (en) * 1993-04-13 1994-10-28 アスモ株式会社 Blower device for vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012510245A (en) * 2008-11-24 2012-04-26 ブローゼ・ファールツォイクタイレ・ゲーエムベーハー・ウント・コンパニ・コマンディットゲゼルシャフト・ヴュルツブルク Drive motor with integrated cooling means
US9088184B2 (en) 2008-11-24 2015-07-21 Brose Fahrzeugteile Gmbh & Co. Kg, Würzburg Drive motor having integrated cooling
JP2019189041A (en) * 2018-04-25 2019-10-31 株式会社デンソー Vehicle air conditioner
WO2019208251A1 (en) * 2018-04-25 2019-10-31 株式会社デンソー Vehicle air-conditioning device

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