JPH0680019A - Air cleaner for vehicle - Google Patents
Air cleaner for vehicleInfo
- Publication number
- JPH0680019A JPH0680019A JP25899192A JP25899192A JPH0680019A JP H0680019 A JPH0680019 A JP H0680019A JP 25899192 A JP25899192 A JP 25899192A JP 25899192 A JP25899192 A JP 25899192A JP H0680019 A JPH0680019 A JP H0680019A
- Authority
- JP
- Japan
- Prior art keywords
- air
- air filter
- vehicle
- motor
- control circuit
- 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.)
- Withdrawn
Links
Landscapes
- Air-Conditioning For Vehicles (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両用空調装置におけ
る空気浄化装置、とくにその点検保守装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying device for a vehicle air conditioner, and more particularly to an inspection and maintenance device therefor.
【０００２】[0002]
【従来の技術】従来の車両用空調装置においては、送風
ファンから熱交換器への途中に設置されたエアフィルタ
がほこり等により目詰まりを起こしているかどうかを、
エアフィルタを随時目視することにより、あるいは、エ
アフィルタが一定期間使用されたときに点検し、そのと
きエアフィルタが目詰まりを起こしていれば、エアフィ
ルタを清掃または交換していたが、エアフィルタの目視
点検は実際上面倒であるため、往々にして十分な点検が
行われにくく、また、エアフィルタが目詰まりを起こす
期間はその使用状況によって大きく異なるので、エアフ
ィルタの期間管理では的確な点検が困難であって、エア
フィルタが目詰まりを起こしたまま空調装置の運転が継
続されかねない不具合があった。2. Description of the Related Art In a conventional vehicle air conditioner, it is necessary to check whether an air filter installed midway from a blower fan to a heat exchanger is clogged with dust or the like.
Check the air filter from time to time, or check the air filter when it has been used for a certain period of time.If the air filter is clogged at that time, the air filter was cleaned or replaced. Since the visual inspection of the air filter is actually a top-down operation, it is often difficult to perform a sufficient inspection, and the period during which the air filter is clogged varies greatly depending on the usage conditions. However, there is a problem that the operation of the air conditioner may be continued with the air filter clogged.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、車両の空調
装置におけるエアフィルタが目詰まりを起こしたとき、
あるいは、目詰まりを起こしそうになったときには、こ
れを確実に検出することにより、エアフィルタの清掃ま
たは交換の必要性を乗員に知らせて、空調装置の正常な
運転を確保しようとするものである。SUMMARY OF THE INVENTION The present invention is directed to a vehicle air conditioner, in which the air filter is clogged,
Alternatively, when a clogging is about to occur, it is possible to reliably detect the clogging to inform the occupant of the necessity of cleaning or replacement of the air filter to ensure normal operation of the air conditioner. .
【０００４】[0004]
【課題を解決するための手段】このため、本発明にかか
る車両用空気浄化装置は、車両用空調装置において、送
風ファンを駆動するモータの作動状況検出部、同検出部
から作動信号を受ける制御回路及び同制御回路からの制
御信号により作動するインジケータを有し、上記制御回
路は上記作動信号が初期値から所定量以上変化したとき
または設定値に達したとき上記制御信号を出すように構
成されている。Therefore, the vehicle air purifying apparatus according to the present invention is an air conditioner for a vehicle. In the vehicle air conditioning apparatus, an operating condition detecting section of a motor for driving a blower fan, and a control for receiving an operating signal from the detecting section. A circuit and an indicator operated by a control signal from the control circuit, the control circuit being configured to output the control signal when the operation signal changes from an initial value by a predetermined amount or more or reaches a set value. ing.
【０００５】[0005]
【作用】すなわち、車両用空調装置におけるエアフィル
タがほこり等により汚れた場合には、その汚れの程度に
応じて送風ファンを駆動するモータの作動状況が変動す
るので、その検出部からの作動信号を受ける制御回路
は、作動信号が初期値から所定量以上変化したとき、ま
たは、予め設定された値に達したときインジケータに制
御信号を出し、この制御信号によりインジケータが作動
することによって、エアフィルタが目詰まりを起こし、
あるいは、目詰まりを起こしそうになっていることを乗
員に確実に知らせることができる。In other words, when the air filter in the vehicle air conditioner is contaminated by dust or the like, the operating condition of the motor for driving the blower fan changes depending on the degree of the contamination. The control circuit which receives the signal outputs a control signal to the indicator when the operation signal changes from the initial value by a predetermined amount or more, or when it reaches a preset value. Cause clogging,
Alternatively, the occupant can be surely notified that the vehicle is about to be clogged.
【０００６】[0006]
【実施例】以下、図面に示す本発明の実施例について具
体的に説明する。図１に示す車両用空調装置１におい
て、モータ２に直結されて駆動されるシロッコファン３
により、ダンパ４の切り換え位置に応じて外気取り入れ
口５または内気取り入れ口６から取り入れられた外気ま
たは内気が空気通路７へ送給され、この空気は順次空気
通路７内のエアフィルタ８及びクーリングユニット９を
通ってから、ミックスダンパ１０により一部がヒータコ
ア１１を経ることにより適宜調温され、その後、各ダン
パ１２により切り換えられる各吹き出し口１３から車内
の適当な個所に吹き出される。一方、シロッコファン３
を駆動するモータ２には、その消費電力、回転数等の作
動状況検出部１４が設置されており、検出部１４は制御
回路１５に接続されると共に、図示しないインスツルメ
ントパネルに配置されたランプ及びまたはブザーのイン
ジケータ１６が制御回路１５に接続されている。Embodiments of the present invention shown in the drawings will be specifically described below. In the vehicle air conditioner 1 shown in FIG. 1, a sirocco fan 3 driven by being directly connected to a motor 2
As a result, the outside air or the inside air taken in from the outside air intake port 5 or the inside air intake port 6 is fed to the air passage 7 according to the switching position of the damper 4, and this air is sequentially supplied to the air filter 8 and the cooling unit in the air passage 7. After passing through 9, part of the mixture damper 10 passes through the heater core 11 to adjust the temperature as appropriate, and thereafter, the mixture is blown out from the respective outlets 13 switched by the dampers 12 to appropriate places in the vehicle. Meanwhile, Sirocco fan 3
The motor 2 for driving the motor 2 is provided with an operation status detecting unit 14 for its power consumption, rotation speed, etc. The detecting unit 14 is connected to a control circuit 15 and is also arranged on an instrument panel (not shown). A lamp and / or buzzer indicator 16 is connected to the control circuit 15.
【０００７】図２はモータ２、ファン３及びエアフィル
タ８の特性曲線図であって、横軸はファン３の吐出風量
すなわちエアフィルタ８の通過風量、縦軸はモータ２の
消費電力と回転数及びファン３の吐出圧すなわちほぼエ
アフィルタ８の背圧を示し、Ａはファン３の吐出風量に
対する吐出圧の特性曲線、Ｂは清浄なエアフィルタ８の
通過風量に対する背圧の特性曲線、Ｃはほこり等により
目詰まりを起こしたときのエアフィルタ８の通過風量に
対する背圧の特性曲線、Ｄはファン３の吐出風量に対す
るモータ２の消費電力の特性曲線、Ｅはファン３の吐出
風量に対するモータ２の回転数の特性曲線をそれぞれ表
している。FIG. 2 is a characteristic curve diagram of the motor 2, the fan 3 and the air filter 8. The horizontal axis represents the discharge air volume of the fan 3, that is, the air volume passing through the air filter 8, and the vertical axis represents the power consumption and rotation speed of the motor 2. And the discharge pressure of the fan 3, that is, the back pressure of the air filter 8 approximately, A is a characteristic curve of the discharge pressure with respect to the discharge air volume of the fan 3, B is a characteristic curve of the back pressure with respect to the passing air volume of the clean air filter 8, and C is A back pressure characteristic curve with respect to the passing air volume of the air filter 8 when clogging is caused by dust, D is a characteristic curve of power consumption of the motor 2 with respect to the discharge air volume of the fan 3, and E is with the motor 2 with respect to the discharge air volume of the fan 3. The characteristic curves of the number of revolutions are shown.
【０００８】すなわち、エアフィルタ８が清浄なときに
空気通路７を流れる風量Ｑ１は曲線Ａ、Ｂの交点Ｘによ
って表されるため、このときのモータ２の消費電力及び
回転数はそれぞれ曲線Ｄ、Ｅと風量Ｑ１線との交点によ
り示されるＷ１、Ｎ１であるが、空調装置１の使用によ
りエアフィルタ８にほこりが付着して汚れるに従いエア
フィルタ８の通風抵抗が変化し、エアフィルタ８が目詰
まりを起こしたときに空気通路７を流れる風量Ｑ２は曲
線Ａ、Ｃの交点Ｙによって表されるため、このときのモ
ータ２の消費電力及び回転数はそれぞれ曲線Ｄ、Ｅと風
量Ｑ２線との交点により示されるＷ２、Ｎ２に変化する
ことになる。That is, since the air volume Q1 flowing through the air passage 7 when the air filter 8 is clean is represented by the intersection X of the curves A and B, the power consumption and the rotational speed of the motor 2 at this time are respectively the curves D and W1 and N1 are indicated by the intersections of E and the air volume Q1 line. However, the ventilation resistance of the air filter 8 changes as the dust adheres to and soils the air filter 8 due to the use of the air conditioner 1, so that the air filter 8 is not visible. Since the air volume Q2 flowing through the air passage 7 when a blockage occurs is represented by the intersection Y of the curves A and C, the power consumption and the rotation speed of the motor 2 at this time are respectively the curves D and E and the air volume Q2 line. It will change to W2 and N2 indicated by the intersection.
【０００９】制御回路１５は、エアフィルタ８が清浄な
ときの消費電力Ｗ１または回転数Ｎ１というモータ２の
初期作動信号を検出部１４から受けて記憶しており、空
調装置１の運転に応じて検出部１４から受けるモータ２
の作動信号が、Ｗ２−Ｗ１またはＮ２−Ｎ１の量以上に
変化し、あるいは、エアフィルタ８が目詰まりを起こし
たときのモータ２の消費電力Ｗ２または回転数Ｎ２に達
すれば、制御信号を出してインジケータ１６を作動さ
せ、エアフィルタ８が目詰まりを起こしていることを車
両の乗員に報知する。The control circuit 15 receives from the detection unit 14 an initial operation signal of the motor 2 indicating power consumption W1 or rotation speed N1 when the air filter 8 is clean, and stores the signal, and according to the operation of the air conditioner 1. Motor 2 received from detection unit 14
If the operation signal of changes to more than the amount of W2-W1 or N2-N1 or reaches the power consumption W2 of the motor 2 or the rotation speed N2 when the air filter 8 is clogged, the control signal is output. The indicator 16 is operated to notify the occupant of the vehicle that the air filter 8 is clogged.
【００１０】従って、適切な時期にエアフィルタ８が確
実に清掃または交換されることにより、空調装置１の正
常な運転を常に、かつ、容易に確保することができる。
また、検出部１４は空気通路７の外方に設置されてい
て、空調装置１の運転によって汚れたりするおそれは少
ないため、モータ２の作動状況を常に正確に検出して、
制御回路１５の誤作動を防止することができる長所があ
る。Therefore, by properly cleaning or replacing the air filter 8 at an appropriate time, the normal operation of the air conditioner 1 can always and easily be ensured.
Further, since the detection unit 14 is installed outside the air passage 7 and is unlikely to be contaminated due to the operation of the air conditioner 1, the operating state of the motor 2 is always detected accurately,
There is an advantage that the malfunction of the control circuit 15 can be prevented.
【００１１】なお、空調装置の正常な運転を一層確実に
するために、制御回路が作動状況検出部から受けるモー
タの作動信号が、エアフィルタが目詰まりを起こすより
少し前の汚れ状態に達したときの設定値と初期値との差
以上に初期値から変化したとき、または、上記設定値に
達したときに、制御回路がインジケータ１６に制御信号
を出すように構成して、エアフィルタが目詰まりを起こ
しそうになっていることを車両の乗員に報知することも
できるものである。In order to further ensure the normal operation of the air conditioner, the motor operating signal received from the operating condition detecting section by the control circuit has reached a dirty state slightly before the air filter is clogged. When the change from the initial value exceeds the difference between the set value and the initial value, or when the set value is reached, the control circuit outputs the control signal to the indicator 16 so that the air filter can It is also possible to notify the occupant of the vehicle that the vehicle is about to become clogged.
【００１２】[0012]
【発明の効果】本発明にかかる車両用空気浄化装置にお
いては、車両用空調装置のエアフィルタが目詰まりを起
こしたとき、あるいは、目詰まりを起こしそうになった
ときに、モータの作動状況検出部から作動信号を受ける
制御回路によってインジケータが作動し、エアフィルタ
の目詰まり、あるいは、その状態に近づいていることを
乗員に確実に知らせることができるので、エアフィルタ
が直ちに清掃または交換されることにより、空調装置の
正常な運転を常に、かつ、容易に確保することができ
る。また、モータの作動状況検出部は空調装置の空気通
路外に設置することができるので、空調装置の運転によ
って汚れたりするおそれは少なく、モータの作動状況を
常に正確に検出して、制御回路の誤作動を防止すること
ができる。In the vehicle air purifying apparatus according to the present invention, when the air filter of the vehicle air conditioner is clogged or is about to be clogged, the motor operating condition is detected. The indicator is activated by the control circuit that receives an activation signal from the engine, and the occupant can be surely notified that the air filter is clogged or is approaching its state, so the air filter should be immediately cleaned or replaced. As a result, normal operation of the air conditioner can always and easily be ensured. Also, since the motor operation status detection unit can be installed outside the air passage of the air conditioner, there is little risk of contamination by the operation of the air conditioner, and the motor operation status is always detected accurately and the control circuit It is possible to prevent malfunction.
【図１】本発明の実施例における概略配置図。FIG. 1 is a schematic layout diagram in an embodiment of the present invention.
【図２】上記実施例の特性曲線図。FIG. 2 is a characteristic curve diagram of the above embodiment.
１ 車両用空調装置 ３ ファン ７ 空気通路 ８ エアフィルタ １４ 作動状況検出部 １５ 制御回路 １６ インジケータ 1 Vehicle Air Conditioner 3 Fan 7 Air Passage 8 Air Filter 14 Operating Status Detector 15 Control Circuit 16 Indicator
Claims (1)
駆動するモータの作動状況検出部、同検出部から作動信
号を受ける制御回路及び同制御回路からの制御信号によ
り作動するインジケータを有し、上記制御回路は上記作
動信号が初期値から所定量以上変化したときまたは設定
値に達したとき上記制御信号を出すように構成された車
両用空気浄化装置。1. An air conditioner for a vehicle, comprising: an operation status detecting section of a motor for driving a blower fan; a control circuit that receives an operation signal from the detecting section; and an indicator that operates according to a control signal from the control circuit. The vehicle air purifying device, wherein the control circuit is configured to output the control signal when the operation signal changes from an initial value by a predetermined amount or more or reaches a set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25899192A JPH0680019A (en) | 1992-09-02 | 1992-09-02 | Air cleaner for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25899192A JPH0680019A (en) | 1992-09-02 | 1992-09-02 | Air cleaner for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0680019A true JPH0680019A (en) | 1994-03-22 |
Family
ID=17327839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25899192A Withdrawn JPH0680019A (en) | 1992-09-02 | 1992-09-02 | Air cleaner for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0680019A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007168707A (en) * | 2005-12-26 | 2007-07-05 | Sanden Corp | Air-conditioning system for vehicle |
| JPWO2017057030A1 (en) * | 2015-10-02 | 2017-10-05 | オリンパス株式会社 | Circulating smoke exhaust device |
| JP6365797B1 (en) * | 2018-03-30 | 2018-08-01 | 日本電気株式会社 | State estimation apparatus, method and program |
| WO2023189577A1 (en) * | 2022-03-30 | 2023-10-05 | ダイキン工業株式会社 | Fluid transport device, liquid cooling device, refrigeration device, and method for detecting state of fluid transport device |
-
1992
- 1992-09-02 JP JP25899192A patent/JPH0680019A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007168707A (en) * | 2005-12-26 | 2007-07-05 | Sanden Corp | Air-conditioning system for vehicle |
| JP4675229B2 (en) * | 2005-12-26 | 2011-04-20 | サンデン株式会社 | Air conditioning system for vehicles |
| JPWO2017057030A1 (en) * | 2015-10-02 | 2017-10-05 | オリンパス株式会社 | Circulating smoke exhaust device |
| JP6365797B1 (en) * | 2018-03-30 | 2018-08-01 | 日本電気株式会社 | State estimation apparatus, method and program |
| WO2019189754A1 (en) * | 2018-03-30 | 2019-10-03 | 日本電気株式会社 | State estimation device, method, program and recording medium |
| JP2019178797A (en) * | 2018-03-30 | 2019-10-17 | 日本電気株式会社 | State estimation device, method and program |
| US12070137B2 (en) | 2018-03-30 | 2024-08-27 | Nec Corporation | State estimation apparatus, method, and program storage medium |
| WO2023189577A1 (en) * | 2022-03-30 | 2023-10-05 | ダイキン工業株式会社 | Fluid transport device, liquid cooling device, refrigeration device, and method for detecting state of fluid transport device |
| JP2023148997A (en) * | 2022-03-30 | 2023-10-13 | ダイキン工業株式会社 | Fluid transport device, liquid cooling device, refrigeration device, and method for detecting state of fluid transport device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991102 |