JP2748632B2 - Turbidity detector for washing machine - Google Patents
Turbidity detector for washing machineInfo
- Publication number
- JP2748632B2 JP2748632B2 JP2023147A JP2314790A JP2748632B2 JP 2748632 B2 JP2748632 B2 JP 2748632B2 JP 2023147 A JP2023147 A JP 2023147A JP 2314790 A JP2314790 A JP 2314790A JP 2748632 B2 JP2748632 B2 JP 2748632B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting element
- cover
- washing machine
- storage case
- 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
- Control Of Washing Machine And Dryer (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は洗濯機の洗濯液の濁度を光学的に検出するた
めの洗濯機の濁度検出装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine turbidity detecting device for optically detecting the turbidity of a washing liquid of a washing machine.
従来の技術 従来、この種の洗濯機の濁度検出装置は、第４図に示
すような構造になっていた。すなわち、発光装置は発光
素子21と、この発光素子21を電気的に接続するプリント
配線板22と、このプリント配線板22を収納するための収
納ケース23で構成され、同じように受光装置は、受光素
子24,プリント配線板25,収納ケース26で構成されてい
る。そしてこの発光装置と受光装置とを、外来光を遮断
するためのカバー27に、取り付けネジ28と29によりプリ
ント配線板と収納ケースを介して取り付けていた。30は
発光素子21とプリント配線板22を湿気から保護する防湿
材である。また、31も受光素子24とプリント配線板25と
を湿気から保護する防湿材である。32はカバー27が取り
付けられる洗濯機の排水管である。2. Description of the Related Art Conventionally, a turbidity detecting device for a washing machine of this type has a structure as shown in FIG. That is, the light emitting device is composed of a light emitting element 21, a printed wiring board 22 for electrically connecting the light emitting element 21, and a storage case 23 for storing the printed wiring board 22, and similarly, the light receiving device is It comprises a light receiving element 24, a printed wiring board 25, and a storage case 26. Then, the light emitting device and the light receiving device are mounted on a cover 27 for blocking external light by using mounting screws 28 and 29 via a printed wiring board and a storage case. Reference numeral 30 denotes a moisture-proof material for protecting the light emitting element 21 and the printed wiring board 22 from moisture. 31 is also a moisture-proof material for protecting the light receiving element 24 and the printed wiring board 25 from moisture. 32 is a drain pipe of the washing machine to which the cover 27 is attached.
発明が解決しようとする課題 しかし、このような構造のようなものでは、発光素子
21を取り付けたプリント配線板22を収納ケース23を介し
て、取り付けネジ28によりカバー27に取り付けた後、防
湿材30を充填しなければならず、しかも受光側にも同じ
ように、防湿材31を充填しなければならない。そして、
この防湿材30,31は一般的にはエポキシ材料などが使用
されている。したがって、このエポキシ材料を充填して
硬化するのに、多大な時間が必要となり、量産性の面で
問題があった。Problems to be Solved by the Invention However, in such a structure, a light emitting element
After attaching the printed wiring board 22 with the attached 21 to the cover 27 with the mounting screws 28 via the storage case 23, the moisture proof material 30 must be filled, and the moisture proof material 31 Must be filled. And
Generally, epoxy materials and the like are used for the moisture proof materials 30 and 31. Therefore, it takes a lot of time to fill and cure the epoxy material, and there is a problem in mass productivity.
つまり、発光側をエポキシ材料で充填硬化した後に、
さらにもう一度同じように、受光側にもエポキシ材料を
充填硬化しなければならないという課題を有していた。In other words, after filling and curing the light emitting side with epoxy material,
In the same manner, there was a problem that the light-receiving side had to be filled with an epoxy material and cured.
また、この濁度検出装置は洗濯機に取り付けたとき
に、太陽光などの外来光から、受光素子が影響を受けに
くくするためにカバーをもうけているが、このカバーだ
けでは不十分であり、特に洗濯機の蓋を開けたときなど
上部からの外来光に対して影響を受けやすく、正確な洗
濯機の濁度を検出できないという問題があった。In addition, when this turbidity detection device is attached to a washing machine, a cover is provided to make the light receiving element less affected by extraneous light such as sunlight, but this cover alone is insufficient. In particular, there is a problem in that the turbidity of the washing machine cannot be accurately detected because it is easily affected by extraneous light from above, such as when the lid of the washing machine is opened.
そこで、本発明は、発行側と受光側とを順番に防湿材
で充填することなく、同時に充填材が充填できる構造で
あって外来光の影響を受けにくくする構成を提供するこ
とを目的とする。Therefore, an object of the present invention is to provide a structure in which the filler and the light-receiving side can be simultaneously filled with a filler without being sequentially filled with a moisture-proof material, and are less likely to be affected by extraneous light. .
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発明は、発光素子と、受
光素子と、前記発光素子および受光素子をそれぞれ独立
して収納する収納ケースと、前記発光素子および受光素
子が同一線上に対峙して保持されるように各々の収納ケ
ースを取り付けるとともに外来光を遮断するカバーとを
有し、前記各々の収納ケースは、前記発光素子又は受光
素子を電気的に接続するプリント配線基板を収納して防
湿材が充填された充填部と、前記カバーに取り付ける取
り付け部からなると共に可視光遮断材料により構成され
たものである。Means for Solving the Problems In order to achieve the above object, the present invention provides a light emitting element, a light receiving element, a storage case for independently storing the light emitting element and the light receiving element, and the light emitting element and the light receiving element. A cover that attaches each storage case so as to be held on the same line and that blocks external light, and each of the storage cases electrically connects the light emitting element or the light receiving element. It comprises a filling portion for accommodating a substrate and filled with a moisture-proof material, and a mounting portion to be attached to the cover, and is made of a visible light shielding material.
作用 本発明の洗濯機の濁度装置は、上記構成により、発光
素子又は受光素子を収納するそれぞれの収納ケースに、
各素子およびプリント配線基板を取り付け、防湿剤を充
填硬化した後、それぞれカバーに取り付けるものである
ため、エポキシ樹脂材料などの充填材の硬化をカバー取
り付け時に同時に行う必要がなくなり、量産性の向上が
図れるものである。The turbidity device of the washing machine according to the present invention has the above configuration, and in each of the storage cases for storing the light emitting element or the light receiving element,
After mounting each element and printed wiring board, filling and curing the moisture proofing agent, each is attached to the cover, so it is not necessary to cure the filler such as epoxy resin material at the same time as the cover is attached, improving mass productivity. It can be achieved.
また太陽光などの外来光の影響を受けにくくしている
ため、正確な洗濯液の濁度を検出できるものである。In addition, since it is hardly affected by extraneous light such as sunlight, the turbidity of the washing liquid can be accurately detected.
実 施 例 以下、本発明の一実施例を添付図面にもとづいて説明
する。第３図は本発明による全自動洗濯機の縦断面図で
あり、１は洗濯機本体、２は内槽３と外槽４とからなる
洗濯槽で、衣類が投入される内槽３の周壁には多数の小
穴があり、外槽４はサスペンション５によって前記本体
１から懸垂支持されている。６及び７は外槽４の底部に
取り付けられたモータ及びブレーキ・クラッチ機構、８
は排水バルブで、外槽４底部に設けられた排水口９と、
前記排水バルブ８の流入口とは透光性材料によって形成
した垂直部と水平部を有する流入管10により連結されて
おり、流入管10の垂直部は排水口９に接続され、水平部
は排水バルブ８の流入口に接続されている。11は排水ホ
ースで、排水バルブ８の流出口に連結されている。そし
て、本発明の洗濯機の濁度検出装置12は、第２図に示す
ように外来光を遮断するカバー121で、前記流入管10に
ネジ13などにより支持されて設置されている。14は発光
装置であり受光装置はこの発光装置14と同一線上に対峙
して保持している。Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 3 is a longitudinal sectional view of a fully automatic washing machine according to the present invention, wherein 1 is a washing machine main body, 2 is a washing tub comprising an inner tub 3 and an outer tub 4, and a peripheral wall of the inner tub 3 into which clothes are put. The outer tub 4 is suspended from the main body 1 by a suspension 5. 6 and 7 are a motor and brake / clutch mechanism mounted on the bottom of the outer tub 4;
Is a drain valve, a drain port 9 provided at the bottom of the outer tank 4,
The inflow port of the drain valve 8 is connected by an inflow pipe 10 having a vertical portion and a horizontal portion formed of a translucent material. The vertical portion of the inflow pipe 10 is connected to a drain port 9, and the horizontal portion is drained. It is connected to the inlet of the valve 8. A drain hose 11 is connected to an outlet of the drain valve 8. As shown in FIG. 2, the turbidity detecting device 12 of the washing machine of the present invention is provided with a cover 121 for blocking external light and supported by the inflow pipe 10 with a screw 13 or the like. Reference numeral 14 denotes a light emitting device, and the light receiving device is held facing the light emitting device 14 on the same line.
この濁度検出装置12の詳細を第１図に示す。同図にお
いて、14は発光素子141を有した発光装置であり、15は
受光素子151を有した受光装置であり、この発光装置14
と受光装置15とをそれぞれ独立した収納ケース142と152
に収納しており、この収納ケースを外来光を遮断するカ
バー121にビス143と153に取り付けている。そしてこの
ビスの取り付け箇所は発光素子141とこの発光素子141を
電気的に接続するプリント配線板144と、このプリント
配線板144を収納する収納ケース142とからなり、前記収
納ケース142内に防湿材145を充填硬化した後に前記カバ
ー121に取り付けられるように、防湿材145の充填箇所と
は独立させた箇所に設置されている。すなわち、収納ケ
ース142と152は、受発光装置とこの受発光装置を電気的
に接続するプリント配線板とを防湿材により充填硬化す
るための充填部とカバーに機械的に取り付けるための取
り付け部から構成されている。The details of the turbidity detector 12 are shown in FIG. In the figure, reference numeral 14 denotes a light emitting device having a light emitting element 141, and 15 denotes a light receiving device having a light receiving element 151.
And the light-receiving device 15 are independent storage cases 142 and 152, respectively.
The storage case is attached to screws 143 and 153 on a cover 121 that blocks external light. The mounting portion of the screw includes a light emitting element 141, a printed wiring board 144 for electrically connecting the light emitting element 141, and a storage case 142 for storing the printed wiring board 144. It is installed at a location independent of the location where the moisture-proof material 145 is filled, so that it can be attached to the cover 121 after the 145 has been filled and cured. That is, the storage cases 142 and 152 are provided with a filling portion for filling and curing the light emitting and receiving device and a printed wiring board electrically connecting the light receiving and emitting device with the moisture proof material and an attaching portion for mechanically attaching the cover to the cover. It is configured.
また146はプリント配線板142を収納ケース142に固定
するためのビスであり、防湿材の充填硬化のときに、発
光素子141を外部回路に電気的に接続するためのリード
線147によりプリント配線板が浮き上がらないようにす
るためのものである。Reference numeral 146 denotes a screw for fixing the printed wiring board 142 to the storage case 142, and a lead wire 147 for electrically connecting the light emitting element 141 to an external circuit at the time of filling and curing of the moisture proof material. Is to prevent the surface from rising.
受光装置15も、上記構成と同様に構成されており、15
3は収納ケース152をカバー121に取り付けるためのビ
ス、154は受光素子151を電気的に接続するプリント配線
板、155は受光素子151とプリント配線板154を防湿材、1
56はプリント配線板156を収納ケース152に取り付けるビ
ス、157はリード線である。The light receiving device 15 is also configured in the same manner as the above configuration.
3 is a screw for attaching the storage case 152 to the cover 121, 154 is a printed wiring board for electrically connecting the light receiving element 151, 155 is a moistureproof material for the light receiving element 151 and the printed wiring board 154, 1
56 is a screw for attaching the printed wiring board 156 to the storage case 152, and 157 is a lead wire.
すなわち、本発明の洗濯機の濁度検出装置は、発光装
置と受光装置とをそれぞれ独立した収納ケース142と152
に収納し、カバー121に取り付けており、さらに収納ケ
ースは防湿剤を充填硬化するための充填部とカバーに取
り付ける取り付け部から構成されているため、発光装置
と受光装置とを別々に分離独立して、防湿剤を充填硬化
できるものである。That is, the turbidity detecting device of the washing machine according to the present invention includes the light-emitting device and the light-receiving device, which are independent storage cases 142 and 152.
The light-emitting device and the light-receiving device are separately separated and independent because the storage case is composed of a filling portion for filling and curing the moisture barrier and a mounting portion to be attached to the cover. And can be filled and cured with a moisture barrier.
また、発光装置は赤外光を出力する発光素子を使用
し、受光装置は赤外光を受光する受光素子を使用してい
る。さらに前記収納ケース142及び152とは、ポリカーボ
ネートなどの可視光遮断材料により構成している。The light emitting device uses a light emitting element that outputs infrared light, and the light receiving device uses a light receiving element that receives infrared light. Further, the storage cases 142 and 152 are made of a visible light shielding material such as polycarbonate.
そのため、太陽光などの外来光の影響を受けにくく、
正確な洗濯液の濁度を検知できるものである。Therefore, it is hardly affected by extraneous light such as sunlight,
It can accurately detect the turbidity of the washing liquid.
発明の効果 以上述べてきたように、本発明の洗濯機の濁度検出装
置は、発光素子と、受光素子と、前記発光素子および受
光素子をそれぞれ独立して収納する収納ケースと、前記
発光素子および受光素子が同一線上に対峙して保持され
るように各々の収納ケースを取り付けるとともに外来光
を遮断するカバーとを有し、前記各々の収納ケースは、
前記発光素子又は受光素子を電気的に接続するプリント
配線基板を収納して防湿材が充填された充填部と、前記
カバーに取り付ける取り付け部からなると共に可視光遮
断材料により構成されたものであるため、発光素子又は
受光素子を収納するそれぞれの収納ケースに、各素子お
よびプリント配線基板を取り付け、防湿剤を充填硬化し
た後、それぞれカバーに取り付けるものであるため、エ
ポキシ樹脂材料などの充填材の硬化をカバー取り付け時
に同時に行う必要がなくなり、量産性の向上が図れるも
のである。Effect of the Invention As described above, the turbidity detecting device for a washing machine according to the present invention includes a light emitting element, a light receiving element, a storage case for independently storing the light emitting element and the light receiving element, and the light emitting element. And a cover that attaches each storage case so that the light receiving element is held facing the same line and blocks external light, and each storage case includes:
Since the printed wiring board for electrically connecting the light emitting element or the light receiving element is housed and filled with a moisture-proof material and a mounting part to be attached to the cover, it is made of a visible light shielding material. Since each element and the printed wiring board are mounted in each storage case for storing the light emitting element or the light receiving element, and after filling and curing with the moisture proofing agent, each is attached to the cover, the curing of the filler such as epoxy resin material is performed. Need not be performed at the same time when the cover is attached, and mass productivity can be improved.
さらに、収納ケースを可視光遮断材料で構成している
ため太陽光などの外来光の影響を受けにくくなるため、
正確かつ安定した洗濯液の濁度を検出できるものであ
る。Furthermore, because the storage case is made of visible light blocking material, it is less affected by extraneous light such as sunlight,
It can accurately and stably detect the turbidity of the washing liquid.
第１図は本発明の一実施例を示す洗濯機濁度検出装置の
断面図、第２図は同取り付け状態を示す側面図、第３図
は同洗濯機の断面図、第４図は従来の洗濯機の濁度検出
装置の断面図である。 121……カバー、141……発光素子、142,152……収納ケ
ース、142a,152b……充填部、142b,152b……取り付け
部、144,154……プリント配線板、145,155……防湿材、
151……受光素子。FIG. 1 is a cross-sectional view of a washing machine turbidity detecting device showing one embodiment of the present invention, FIG. 2 is a side view showing the mounted state, FIG. 3 is a cross-sectional view of the washing machine, and FIG. It is sectional drawing of the turbidity detection apparatus of the washing machine of FIG. 121 ... cover, 141 ... light emitting element, 142, 152 ... storage case, 142a, 152b ... filling part, 142b, 152b ... mounting part, 144, 154 ... printed wiring board, 145, 155 ... moisture proof material,
151 ... Light receiving element.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊瀬知 宣博 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭58−97396（ＪＰ，Ａ) 特開 昭54−144044（ＪＰ，Ａ) 実開 昭63−140676（ＪＰ，Ｕ) ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Norihiro Ise No. 1006 Kadoma, Kazuma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-58-97396 (JP, A) JP-A Sho 54-144044 (JP, A) Actually open 1988-140676 (JP, U)
Claims (1)
よび受光素子をそれぞれ独立して収納する収納ケース
と、前記発光素子および受光素子が同一線上に対峙して
保持されるように各々の収納ケースを取り付けるととも
に外来光を遮断するカバーとを有し、前記各々の収納ケ
ースは、前記発光素子又は受光素子を電気的に接続する
プリント配線基板を収納して防湿材が充填された充填部
と、前記カバーに取り付ける取り付け部からなると共に
可視光遮断材料により構成された洗濯機の濁度検出装
置。A light-emitting element, a light-receiving element, a storage case for independently storing the light-emitting element and the light-receiving element, and a housing case for holding the light-emitting element and the light-receiving element facing each other on the same line. A cover for attaching a storage case and blocking external light, wherein each storage case stores a printed wiring board for electrically connecting the light emitting element or the light receiving element and is filled with a moisture-proof material; And a turbidity detecting device for a washing machine, comprising: a mounting portion attached to the cover; and a visible light blocking material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023147A JP2748632B2 (en) | 1990-01-31 | 1990-01-31 | Turbidity detector for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023147A JP2748632B2 (en) | 1990-01-31 | 1990-01-31 | Turbidity detector for washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03224598A JPH03224598A (en) | 1991-10-03 |
| JP2748632B2 true JP2748632B2 (en) | 1998-05-13 |
Family
ID=12102457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023147A Expired - Lifetime JP2748632B2 (en) | 1990-01-31 | 1990-01-31 | Turbidity detector for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2748632B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994240A (en) * | 2009-08-25 | 2011-03-30 | 松下电器产业株式会社 | Washing machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4909391B2 (en) * | 2009-08-25 | 2012-04-04 | パナソニック株式会社 | Washing machine |
| JP2014030465A (en) * | 2012-08-01 | 2014-02-20 | Panasonic Corp | Permeability detection device for washing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144044A (en) * | 1978-04-28 | 1979-11-09 | Toshiba Corp | Washing water turbidity detector for electric washing machine |
| JPS5897396A (en) * | 1981-12-07 | 1983-06-09 | 松下電器産業株式会社 | Apparatus for detecting completion of process in washer |
| JPS63140676U (en) * | 1987-03-05 | 1988-09-16 |
-
1990
- 1990-01-31 JP JP2023147A patent/JP2748632B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994240A (en) * | 2009-08-25 | 2011-03-30 | 松下电器产业株式会社 | Washing machine |
| CN101994240B (en) * | 2009-08-25 | 2013-03-27 | 松下电器产业株式会社 | Washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03224598A (en) | 1991-10-03 |
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