JPH0448501Y2 - - Google Patents
Info
- Publication number
- JPH0448501Y2 JPH0448501Y2 JP1984158934U JP15893484U JPH0448501Y2 JP H0448501 Y2 JPH0448501 Y2 JP H0448501Y2 JP 1984158934 U JP1984158934 U JP 1984158934U JP 15893484 U JP15893484 U JP 15893484U JP H0448501 Y2 JPH0448501 Y2 JP H0448501Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- detection element
- electrode pieces
- slope
- detection
- 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
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、主として水位レベルもしくは各種
処理槽の液面レベルを電気的に検出するためのレ
ベル検出素子の改良に関するものである。この種
の検出素子は、通常、検出すべき液中に垂下した
状態で使用し、該素子のボデイから下向きに突出
した状態の２本の高さの異なる電極部片を介し
て、これら部片間の電気的導通の有無（ON−
OFF）により、該素子を含む制御回路を開閉す
るように機能する。[Detailed Description of the Invention] [Industrial Application Field] This invention mainly relates to the improvement of a level detection element for electrically detecting the water level or the liquid level of various treatment tanks. This type of detection element is normally used in a suspended state in the liquid to be detected, and these parts are connected via two electrode pieces of different heights that protrude downward from the body of the element. Whether there is electrical continuity between (ON−
OFF), it functions to open and close a control circuit including the element.
この考案に関連する公知の検出素子としては、
第２図に示すごとく、硬質ゴム、プラスチツク等
から成る略円柱状部材１中に２本の電極線２ａ，
２ｂが挿通された構造のものが提案されている。
Known detection elements related to this invention include:
As shown in FIG. 2, two electrode wires 2a,
A structure in which 2b is inserted has been proposed.
しかるに、そのような公知の素子は、固体と液
体間のぬれ特性（ないしは毛管現象）により、部
材１の下端部に検出すべき液体の粒が付着し易
く、しばしば検出エラーを招来する。より具体的
に説明すると、部材１の直径：Ｄあるいは電極線
２ａ，２ｂ間の間隔：ｄにもよるけれども、それ
らの数値が小さくなればなる程部材底面部３全体
を被うような液体の粒g1や、電極線２ａ，２ｂに
架橋した状態の粒g2が残る。このため、該検出素
子を含む制御回路内では、電極線２ａ，２ｂの下
回つたレベル：L2において当然にそれらの電極
線間がOFF状態でなければならないにも拘らず、
ON信号が発生する。 However, in such known elements, droplets of the liquid to be detected tend to adhere to the lower end of the member 1 due to the wetting characteristics (or capillarity) between the solid and the liquid, often resulting in detection errors. To explain more specifically, although it depends on the diameter D of the member 1 or the distance d between the electrode wires 2a and 2b, the smaller these values, the more liquid will cover the entire bottom part 3 of the member. The grains g1 and the grains g2 crosslinked to the electrode wires 2a and 2b remain. For this reason, in the control circuit including the detection element, even though the electrode lines 2a and 2b must be in an OFF state when they fall below the level L2 ,
ON signal is generated.
そうした現象による検出エラーは、先に述べた
ように、部材１に関する数値：Ｄ，ｄの他、検出
すべき液体の性質によつても変動し、現実的に正
確な検出動作を阻害するだけでなく、様々なトラ
ブルを引き起こす原因となり得る。 As mentioned earlier, detection errors due to such phenomena vary depending on the properties of the liquid to be detected, in addition to the numerical values D and d related to member 1, and may actually only hinder accurate detection operations. This can lead to various problems.
この考案は、上述した処に鑑み、検出素子のボ
デイに検出すべき液体等が付着（残留）すること
により、検出エラーとしてのON信号が発生しな
いようにすることを目的として、ボデイ内に所要
間隔を設けて１組の電極部片を埋設し、これら電
極部片の各下端部をボデイ下端部上に露出して成
る検出素子の構成において、ボデイ下端部に軸線
に対して鋭角をなす実質上単一な斜面を形成し、
この斜面の中途個所より、少なくとも１組の前記
電極部片の下端部を前記軸線に沿つて高さを異な
らせて所要量突出させたことを特徴とするもので
ある。
In view of the above, this idea was developed to prevent the generation of ON signals as detection errors due to adhesion (remaining) of liquid, etc. to be detected on the body of the detection element. In the configuration of a detection element in which a pair of electrode pieces are buried at intervals and the lower ends of each electrode piece are exposed above the lower end of the body, there is a structure at the lower end of the body that forms an acute angle with respect to the axis. forming a single slope on the top;
The present invention is characterized in that the lower end portions of at least one set of the electrode pieces protrude by a required amount from a midway point on the slope at different heights along the axis.
第１図は、この考案の実施例を示すもので、１
０は検出素子のボデイを、１１はボデイ下端部
を、１２ａ，１２ｂは１組の電極部片を、３１は
該素子を接続している電気的な制御回路、例えば
硬水軟化装置のコントロールボツクスを、R1，
R2は各回路中に挿入したリレーをそれぞれ、表
している。
Figure 1 shows an example of this invention.
0 is the body of the detection element, 11 is the lower end of the body, 12a and 12b are a pair of electrode pieces, and 31 is an electrical control circuit connecting the element, for example, a control box of a water softener. , R 1 ,
R 2 represents the relay inserted in each circuit.
図示する複数の電極部片１２ａ，１２ｂは、両
者の高さを異ならせることに関連して、ボデイ下
端部１１を実質上単一な斜面１５で構成してあ
り、各電極部片１２ａ，１２ｂ下端部が僅かに突
出（露出）するようにしている。このようにする
と、ボデイ下端部に付着しがちな水滴あるいは液
滴が該斜面に沿つてスムーズに落下し、電極部片
１２ａ，１２ｂの突出端周りに存留することがな
い。 The illustrated plurality of electrode pieces 12a, 12b have different heights, so that the lower end portion 11 of the body is configured with a substantially single slope 15, and each of the electrode pieces 12a, 12b The lower end is slightly protruded (exposed). In this way, water droplets or liquid droplets that tend to adhere to the lower end of the body fall smoothly along the slope, and do not remain around the protruding ends of the electrode pieces 12a, 12b.
又、検出素子のボデイ１１よりも下方にアース
電極ないしは（−）電極としての導電片３０を設
置し、これと高位及び低位の電極部片１２ａ，１
２ｂとを電源を挟んで接続可能に構成した場合に
は、水位レベルに応じてそれらの電極部片のいず
れかが段階的にON−OFFすることにより、比較
的短い区間での水位レベルの検出、つまりは上下
の電極部片１２ａ，１２ｂとの相対的関係におい
て定まる数段階の−該電極部片が２個のときは同
図中のh1，h2，h3の３段階の−レベル検知をする
ことができる。 Further, a conductive piece 30 as a ground electrode or (-) electrode is installed below the body 11 of the detection element, and this and the higher and lower electrode pieces 12a, 1
2b can be connected across the power supply, the water level can be detected in a relatively short period by turning on and off one of the electrode pieces in stages according to the water level. , that is, several levels determined by the relative relationship with the upper and lower electrode pieces 12a and 12b; when there are two electrode pieces, there are three levels h 1 , h 2 , and h 3 in the figure. Can be detected.
従つて、この考案のレベル検出素子を使用する
ときは、従来の検出素子のように、検出すべき水
位あるいは液面レベルが電極部片の下端（検出
端）を下回つているにも拘らず、ボデイ下端部に
残留した水滴等により誤つたON信号を発すると
いう事態を解消し、同種のレベル検出素子を具備
するところの本体機器、例えば軟水器、ボイラー
等の制御回路の確実な動作と安全な制御を保障す
ることができる。しかも、該素子のボデイの形状
に関していわゆる水切りが良くなることにより、
電極部片の腐食を軽減し、寿命の延長を図ること
が可能で、上述の電極部片間の間隔：ｄを小さく
設定しなければならない検出個所、例えば狭小な
流路における水位の測定に有効であり、小型軽便
化を可能ならしめる等、多大な実用的効果を挙げ
得る。
Therefore, when using the level detection element of this invention, unlike the conventional detection element, even if the water level or liquid level to be detected is below the lower end (detection end) of the electrode piece, , eliminates the situation where a false ON signal is issued due to water droplets remaining on the lower end of the body, and ensures reliable operation and safety of control circuits of main body equipment such as water softeners and boilers that are equipped with the same type of level detection element. control can be ensured. Moreover, the shape of the body of the element improves so-called drainage,
It is possible to reduce corrosion of the electrode pieces and extend their lifespan, and is effective for measuring the water level in a narrow flow path, such as at a detection location where the spacing between the electrode pieces (d) described above must be set small. This can bring about great practical effects, such as making it possible to make it smaller and more convenient.
第１図は、この考案の実施例を示す概略的な側
面図、第２図は公知の検出素子を示す同上図であ
る。
１０……検出素子のボデイ、１１……ボデイ下
端部、１２ａ，１２ｂ……電極部片、１２a′，１
２b′……電極部片の下端部、１５……斜面、…
…軸線。
FIG. 1 is a schematic side view showing an embodiment of this invention, and FIG. 2 is a same view showing a known detection element. DESCRIPTION OF SYMBOLS 10... Body of detection element, 11... Lower end of body, 12a, 12b... Electrode piece, 12a', 1
2b'...lower end of electrode piece, 15...slope,...
...axis line.
Claims (1)
片１２ａ，１２ｂを埋設し、これら電極部片の各
下端部１２a′，１２b′をボデイ下端部１１上に露
出して成る検出素子の構成において、 ボデイ下端部１１に軸線に対して鋭角をなす
実質上単一な斜面１５を形成し、この斜面の中途
個所より、少なくとの１組の前記電極部片の下端
部を前記軸線に沿つて高さを異ならせて所要量突
出させたことを特徴とするレベル検出素子。[Claims for Utility Model Registration] A set of electrode pieces 12a, 12b is embedded within the body 10 at a required interval, and the lower ends 12a', 12b' of these electrode pieces are placed on the lower end 11 of the body. In the configuration of the exposed detection element, a substantially single slope 15 forming an acute angle with respect to the axis is formed on the lower end portion 11 of the body, and at least one set of the electrode parts is formed from a midway point of this slope. A level detection element characterized in that a lower end portion of the element is protruded by a required amount at different heights along the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984158934U JPH0448501Y2 (en) | 1984-10-20 | 1984-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984158934U JPH0448501Y2 (en) | 1984-10-20 | 1984-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6174839U JPS6174839U (en) | 1986-05-20 |
| JPH0448501Y2 true JPH0448501Y2 (en) | 1992-11-16 |
Family
ID=30716899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984158934U Expired JPH0448501Y2 (en) | 1984-10-20 | 1984-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448501Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55127233U (en) * | 1979-03-01 | 1980-09-09 | ||
| DE3205528C2 (en) * | 1982-02-12 | 1985-04-04 | Gustav 5870 Hemer Kolb | Probe for depth measurement |
-
1984
- 1984-10-20 JP JP1984158934U patent/JPH0448501Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6174839U (en) | 1986-05-20 |
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