JP3075878B2 - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JP3075878B2 JP3075878B2 JP05013793A JP1379393A JP3075878B2 JP 3075878 B2 JP3075878 B2 JP 3075878B2 JP 05013793 A JP05013793 A JP 05013793A JP 1379393 A JP1379393 A JP 1379393A JP 3075878 B2 JP3075878 B2 JP 3075878B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- filter
- air conditioner
- heat exchanger
- detector
- 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
- Air Conditioning Control Device (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、石油またはガス温風暖
房機、エアコン等のフィルタの目詰りを検出する検出器
を備えた空気調和機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a detector for detecting clogging of a filter such as an oil or gas hot air heater and an air conditioner.
【0002】[0002]
【従来の技術】従来、フィルタの目詰りは、空気調和機
の積算運転時間をもとにするものが一般的であった。2. Description of the Related Art Conventionally, clogging of a filter is generally based on the accumulated operation time of an air conditioner.
【0003】また、フィルタの目詰りを検出する検出器
としては、特公昭62−48137号公報等にあるよう
に各種センサを用いるものも知られている。図3におい
て、1は空気調和機本体、2は吸気口、3は着脱自在な
フィルタ、4は熱交換器、5は送風機、6は吹出口であ
り、室内空気は送風機5により吸気口2から空気調和機
本体1内に取り込まれ、フィルタ3及び熱交換器4を介
して吹出口6より室内に放出される。この時、室内空気
は埃等がフィルタ3に付着された後、熱交換器4により
熱交換されるものである。7はフィルタ3の目詰りを検
出する光電式検出器であり、この詳細は図4に示すもの
とする。As a detector for detecting clogging of a filter, a detector using various sensors as disclosed in JP-B-62-48137 is known. In FIG. 3, 1 is an air conditioner main body, 2 is an intake port, 3 is a detachable filter, 4 is a heat exchanger, 5 is a blower, 6 is an outlet, and indoor air is blown from the intake port 2 by the blower 5. It is taken into the air conditioner main body 1 and is discharged into the room from the outlet 6 via the filter 3 and the heat exchanger 4. At this time, the indoor air is subjected to heat exchange by the heat exchanger 4 after dust and the like are attached to the filter 3. Reference numeral 7 denotes a photoelectric detector for detecting clogging of the filter 3, the details of which are shown in FIG.
【0004】即ち、光電式検出器7はフィルタ3の両側
に発光素子8と受光素子9とからなる検出部を設けたも
のである。通常は発光素子8の光がフィルタ3を透過し
て受光素子9に到達するが、フィルタ3に埃が付着する
と透過性が悪くなり、受光素子9での受光ができなくな
り、そのため、光電式検出器7からの信号がリ−ド線1
0,10を介して空気調和機本体1内にある制御装置
(図示せず)に伝えられ、運転停止、またはランプ、ブ
ザ−等による目詰り報知を行うものである。[0004] That is, the photoelectric detector 7 is provided with a detection unit including a light emitting element 8 and a light receiving element 9 on both sides of the filter 3. Normally, the light of the light emitting element 8 passes through the filter 3 and reaches the light receiving element 9; however, if dust adheres to the filter 3, the light transmittance deteriorates, and the light receiving element 9 cannot receive light. The signal from the detector 7 is the lead line 1
The control signal is transmitted to a control device (not shown) in the air conditioner main body 1 through 0 and 10 to stop the operation or notify the clogging by a lamp, a buzzer or the like.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、積算運
転時間をもとにするものでは、空気調和機の置かれた部
屋の状態によりフィルタの汚れが異なり、不正確である
という問題がある。However, the method based on the accumulated operation time has a problem that the filter is stained differently depending on the state of the room where the air conditioner is placed, and is inaccurate.
【0006】また、検出器として上述した光電式検出器
或いは差圧センサ、ホットサ−ミスタ、風速センサ等を
用いると正確な値を得ることも可能であるが、非常に高
価になるという問題がある。If the above-mentioned photoelectric detector, differential pressure sensor, hot thermistor, wind speed sensor or the like is used as a detector, an accurate value can be obtained, but it is very expensive. .
【0007】本発明は、上述した事実に鑑み成されたも
のであり、空気調和機の置かれた部屋の状態に左右され
ることが少なく、安価で精度のよいフィルタの目詰り検
出が行われようにすることを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned facts, and is inexpensive and accurately detects clogging of a filter, which is less affected by the state of a room in which an air conditioner is placed. The purpose is to be.
【0008】[0008]
【課題を解決するための手段】本発明は、吸気口及び吹
出口を有し、これらを連絡する送風経路に熱交換器と送
風機とを設け、前記吸気口から吸込まれた吸込外気を熱
交換器で調温して吹出口から送出するようにした空気調
和機本体と、前記熱交換器の風上側に着脱自在に設けら
れたフィルタと、このフィルタの目詰りを検出する検出
器とを備えた空気調和機において、前記フィルタの目詰
り時に吸込外気を集中させる貫通孔を有する歪ゲージを
配したものである。According to the present invention, there is provided an air inlet and an air outlet, and a heat exchanger and a blower are provided in an air flow path connecting the air inlet and the air outlet. An air conditioner main body, which is controlled by a heater and sent out from an outlet, a filter detachably provided on the windward side of the heat exchanger, and a detector for detecting clogging of the filter. In the air conditioner, when the filter is clogged , a strain gauge having a through-hole for concentrating suction outside air is provided.
It is obtained by distribution.
【0009】[0009]
【作用】吸気口及び吹出口を連絡する送風経路に熱交換
器と送風機とを備え、吸気口から吸込まれた吸込外気を
熱交換器で調温して吹出口から送出する空気調和機にお
いて、そのフィルタの目詰りを検出する検出器は、前記
フィルタの目詰り時に吸込外気を集中させる貫通孔を有
する歪ゲージを配した構成なので、フィルタの目詰りが
ない時は、フィルタを境とした内外差圧によるゲージめ
歪みは小さく、電気抵抗の変化分も小さいが、フィルタ
の目が詰まるにつれ、貫通孔を通る風量が増し、それに
よる歪ゲージの歪みが大きくなり、電気抵抗の変化分も
大きくなるため、歪ゲージの歪みによる電気抵抗の変化
分が一定値を越えた場合にフィルタの目詰りが発生した
と判断できるものである。In an air conditioner provided with a heat exchanger and a blower in a blowing path connecting an intake port and an air outlet, the outside air sucked from the air inlet is temperature-controlled by the heat exchanger and sent out from the air outlet. The detector for detecting clogging of the filter has a through-hole for concentrating intake air when the filter is clogged.
Since configurations arranged strain gauges that, as when there is no clogging of the filter, the gauge Me distortion due out differential pressure and boundary filter is small, but the variation of the electrical resistance is small, the eyes of the filter is clogged, Since the amount of air passing through the through-hole increases, the strain in the strain gauge increases, and the change in electrical resistance also increases.If the change in electrical resistance due to strain in the strain gauge exceeds a certain value, the filter becomes clogged. Can be determined to have occurred.
【0010】これにより、空気調和機の置かれた部屋の
状態に左右されることのない精度の高い検出器を提供す
ることができる。また、歪ゲ−ジは圧力センサ等と比較
して非常に安価であるため、製造コストも下げることが
できる。Thus, a highly accurate detector can be provided which is not affected by the condition of the room where the air conditioner is placed. Further, since the strain gauge is very inexpensive as compared with a pressure sensor or the like, the manufacturing cost can be reduced.
【0011】[0011]
【実施例】以下、本発明の一実施例を図面に基ずいて説
明する。図1において、1は空気調和機本体、2は空気
調和機本体1の前面に開口する吸気口、3は着脱自在な
フィルタ、4は熱交換器であり、吸気口2と熱交換器4
との間にフィルタ3が挿入されるものである。また、5
は送風機、6は吹出口であり、室内空気は送風機5によ
り吸気口2から空気調和機本体1内に取り込まれ、フィ
ルタ3及び熱交換器4を介して吹出口6より室内に放出
される。この時、室内空気は埃等がフィルタ3に付着さ
れた後、熱交換器4により熱交換されるものである。1
1はフィルタ3の目詰りを検出する検出器(歪ゲ−ジ)
である。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes an air conditioner main body, 2 denotes an air inlet opening to the front of the air conditioner main body 1, 3 denotes a detachable filter, 4 denotes a heat exchanger, and the air inlet 2 and the heat exchanger 4
And the filter 3 is inserted between them. Also, 5
Is a blower, and 6 is an air outlet. Room air is taken into the air conditioner main body 1 from the air inlet 2 by the air blower 5, and discharged into the room from the air outlet 6 through the filter 3 and the heat exchanger 4. At this time, the indoor air is subjected to heat exchange by the heat exchanger 4 after dust and the like are attached to the filter 3. 1
1 is a detector for detecting clogging of the filter 3 (distortion gauge).
It is.
【0012】図2は検出器11の詳細を示すものであ
る。即ち、検出器11は有機フィルム等を用いたフレキ
シブルフィルム12と、このフレキシブルフィルム12
内に納められている歪検出電極13及びりード線14、
14から成っており、フィルタ3を境とする内外差圧の
圧力変化によるフレキシブルフィルム12の変形を基
に、フィルタ3の目詰りを感知するものである。つま
り、フレキシブルフィルム12の変形と同時に歪検出電
極13が変形し、この変形を電気抵抗の変化に変え、そ
の信号を接続端子15、15につながるリード線14,
14によって空気調和機本体1内にある制御装置(図示
せず)に伝え、運転停止、またはランプ、ブザー等で目
詰り状態を報知するものである。[0012] Figure 2 shows a detail of the detector 11. That is, the detector 11 includes a flexible film 12 using an organic film or the like and the flexible film 12.
The strain detecting electrode 13 and the lead wire 14 contained in the
The filter 14 detects the clogging of the filter 3 based on the deformation of the flexible film 12 due to a change in the pressure difference between the inside and outside of the filter 3. In other words, the strain detecting electrode 13 is deformed simultaneously with the deformation of the flexible film 12, and this deformation is changed into a change in electric resistance, and the signal is transmitted to the connection wires 15, 15.
The information is transmitted to a control device (not shown) in the air conditioner main body 1 by 14 to notify the stop of operation or the clogging state by a lamp, a buzzer, or the like.
【0013】このような検出器11の取り付け場所は、
フィルタ3を境とする内外差圧の圧力変化を感知できる
場所であればどこでも良い。The location for mounting such a detector 11 is as follows.
Any location can be used as long as a change in the pressure difference between the inside and outside of the filter 3 can be sensed.
【0014】また、検出器11の取り付け場所は、フレ
キシブルフィルム12の歪検出電極13に干渉しない部
分に適当な大きさの貫通穴等を設けて、フィルタ3の目
詰り時にこの貫通穴に吸込外気を集中させ、これにより
歪検出電極13の変形が大きくなるようにすることで、
フィルタ目詰まりの感度をより高めることができる。The detector 11 is mounted on a portion of the flexible film 12 which does not interfere with the strain detecting electrode 13 by providing a through hole or the like having an appropriate size. was concentrated by thereby to deform the <br/> distortion detecting electrodes 13 increases,
The sensitivity of filter clogging can be further enhanced.
【0015】[0015]
【発明の効果】本発明は、以上のように構成されている
ため、空気調和機の置かれた部屋の状態に左右されるこ
とが少なく、精度の高いフィルタの目詰り検出を行うこ
とができ、製造コストも下げることができる。Since the present invention is constructed as described above, it is possible to detect the clogging of the filter with high accuracy without being influenced by the state of the room where the air conditioner is placed. Also, the manufacturing cost can be reduced.
【図1】本発明の一実施例を示す空気調和機の概略構成
図である。FIG. 1 is a schematic configuration diagram of an air conditioner showing one embodiment of the present invention.
【図2】同じく歪ゲ−ジの概略構成図である。FIG. 2 is a schematic configuration diagram of a strain gauge.
【図3】従来例を示す空気調和機の概略構成図である。FIG. 3 is a schematic configuration diagram of an air conditioner showing a conventional example.
【図4】同じく光電式検出器の概略構成図である。FIG. 4 is a schematic configuration diagram of the photoelectric detector.
1 空気調和機本体 2 吸気口 3 フィルタ 4 熱交換器 5 送風機 6 吹出口 11 歪ゲ−ジ(検出器) DESCRIPTION OF SYMBOLS 1 Air conditioner main body 2 Inlet 3 Filter 4 Heat exchanger 5 Blower 6 Outlet 11 Strain gauge (detector)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 冨士本 宜意 大阪府守口市京阪本通2丁目18番地 三 洋電機株式会社内 (56)参考文献 特開 平3−236596(JP,A) 特開 昭61−101221(JP,A) 特公 昭62−48137(JP,B2) (58)調査した分野(Int.Cl.7,DB名) F24F 13/28 F24F 11/02 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshimoto Fujimoto 2-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-3-236596 (JP, A) JP-A-61-101221 (JP, A) JP-B-62-48137 (JP, B2) (58) Fields investigated (Int. Cl. 7 , DB name) F24F 13/28 F24F 11/02
Claims (1)
する送風経路に熱交換器と送風機とを設け、前記吸気口
から吸込まれた吸込外気を熱交換器で調温して吹出口か
ら送出するようにした空気調和機本体と、前記熱交換器
の風上側に着脱自在に設けられたフィルタと、このフィ
ルタの目詰りを検出する検出器とを備えた空気調和機に
おいて、前記フィルタの目詰り時に吸込外気を集中させ
る貫通孔を有する歪ゲージを配したことを特徴とする空
気調和機。1. A heat exchanger and a blower are provided in an air blow path connecting the air inlet and the air outlet, and the outside air sucked from the air inlet is temperature-controlled by the heat exchanger and the air outlet is provided. An air conditioner comprising: an air conditioner body adapted to be sent from the air conditioner; a filter detachably provided on the windward side of the heat exchanger; and a detector for detecting clogging of the filter. An air conditioner comprising a strain gauge having a through-hole for concentrating the intake outside air when clogging occurs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05013793A JP3075878B2 (en) | 1993-01-29 | 1993-01-29 | Air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05013793A JP3075878B2 (en) | 1993-01-29 | 1993-01-29 | Air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06221597A JPH06221597A (en) | 1994-08-09 |
JP3075878B2 true JP3075878B2 (en) | 2000-08-14 |
Family
ID=11843131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05013793A Expired - Lifetime JP3075878B2 (en) | 1993-01-29 | 1993-01-29 | Air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3075878B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11119545B2 (en) | 2016-10-17 | 2021-09-14 | Hewlett-Packard Development Company, L.P. | Filter mesh with incorporated strain gauge |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2944320B1 (en) * | 2009-04-14 | 2011-03-25 | Peugeot Citroen Automobiles Sa | PARTICLE FILTER AND EXHAUST LINE COMPRISING SUCH A FILTER |
CN116123686A (en) * | 2021-11-12 | 2023-05-16 | 青岛海尔空调器有限总公司 | Method and assembly for controlling gap between air deflector and panel |
-
1993
- 1993-01-29 JP JP05013793A patent/JP3075878B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11119545B2 (en) | 2016-10-17 | 2021-09-14 | Hewlett-Packard Development Company, L.P. | Filter mesh with incorporated strain gauge |
Also Published As
Publication number | Publication date |
---|---|
JPH06221597A (en) | 1994-08-09 |
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