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JP4114219B2 - Electric well pump - Google Patents
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JP4114219B2 - Electric well pump - Google Patents

Electric well pump Download PDF

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Publication number
JP4114219B2
JP4114219B2 JP23677297A JP23677297A JP4114219B2 JP 4114219 B2 JP4114219 B2 JP 4114219B2 JP 23677297 A JP23677297 A JP 23677297A JP 23677297 A JP23677297 A JP 23677297A JP 4114219 B2 JP4114219 B2 JP 4114219B2
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JP
Japan
Prior art keywords
triac
control unit
well pump
protective cover
terminal
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 - Fee Related
Application number
JP23677297A
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Japanese (ja)
Other versions
JPH1182371A (en
Inventor
広志 野元
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP23677297A priority Critical patent/JP4114219B2/en
Publication of JPH1182371A publication Critical patent/JPH1182371A/en
Application granted granted Critical
Publication of JP4114219B2 publication Critical patent/JP4114219B2/en
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Expired - Fee Related legal-status Critical Current

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、水道蛇口の開閉によって自動運転できるように水圧検知手段と流量検知手段と制御部を備え、かつ、前記制御部によって通電制御されるトライアック等の駆動素子を備えた電気井戸ポンプに関する。
【0002】
【従来の技術】
一般に電気井戸ポンプは、水道蛇口を開くと水圧を検知してポンプを運転し、流量を検知して停止させるようになっている。このような動作を行わせるため、図4に示す電気井戸ポンプの構成としている。
【0003】
すなわち、ベース1上にモータ2とポンプ3を装置し、圧力センサ4、流量センサ5、焼損防止器6(図示せず)およびアキュムレータ7を付設し、モータ2の上には制御部取付板8を介して制御部9を設け、これら全体をカバー10で覆って構成されている。
【0004】
また、駆動系の電気回路は図5に示すように構成され、すなわち、電源11よりモータ2の通電回路に、T1、T2、G端子を持つ駆動素子であるトライアック12および焼損防止器6を設け、前記圧力センサ4および流量センサ5の信号によって制御部9がトライアック12を導通制御するようになっている。
【0005】
前記制御部9とトライアック12の組立て構造は、図6に示すようになっている。すなわち、放熱板13にビス14でトライアック12を取り付け、その放熱板13をビス15で制御部9のケーシングに取り付けることで、トライアック12を制御部9に外付けしている。そしてケーシング内において、制御部9の電子回路はリード線とコネクタ16を介してトライアック12の端子に接続され、さらに、コネクタ16の外周に電気絶縁性の保護チューブ17を装着している。図中の6は焼損防止器、18は進相コンデンサである。
【0006】
ところで、一般的に電気井戸ポンプは屋外に設置される場合が多く、ポンプカバー10の内部に昆虫などが侵入することがある。これらの昆虫などが駆動素子であるトライアック12の導電部間、あるいはトライアック12の導電部と製品の非充電金属部の間に侵入し、その間に介在することにより、制御系の異常、または漏電等の問題が発生することがある。
【0007】
この問題を防ぐため、トライアック12の端子接続部の外周、すなわちコネクタ16の外周に電気絶縁性の保護チューブ17を装着するが、さらに、図7に示すように放熱板13とトライアック12の間に絶縁シート19を設け、かつ、トライアック12と制御部取付板8との間に絶縁距離をとっていた。
【0008】
【発明が解決しようとする課題】
このような従来の電気井戸ポンプにおける制御部9とトライアック12の組立て構造では、その組み立てる場合に、まず放熱板13の上に絶縁シート19を重ね、その上にトライアック12を載せるとともに、トライアック12をビス14で固定する。そして保護チューブ17を被せたコネクタ16をトライアック12の端子部に差し込み、制御部9と放熱板13をビス15で固定するものであり、絶縁シート19を必要とすることから作業工程が増え、サービス性が悪いものであった。
【0009】
また、トライアック12におけるT2端子以外のT1、G端子は絶縁していないので、トライアック12のT1、G端子と導電性である制御部取付板8の間で昆虫が介在したとき漏電が発生することになり、この対策として十分な絶縁距離の確保が必要で、製品の性格上、スペース的な問題がある。そして、昆虫の種類や大きさによっては、どの程度の絶縁距離が必要なのか予測できない。
【0010】
また、トライアック12を取り付けるビス14は、放熱板13と制御部取付板8を通して大地アースに導通しており、したがって前記と同様の問題が発生する。
【0011】
そしてトライアック12の取付孔は部品によって既に決定しているもので、絶縁距離をそれ以上広げることは不可能であり、これを対策するためには、トライアック取付用のビス14を完全に絶縁物で覆わなければならないという問題がある。
【0012】
本発明は上記課題を解決するもので、制御部を接続するトライアックの端子部を簡単に絶縁することができ、そしてその制御部へのトライアックの組立て作業性、サービス性のよい電気井戸ポンプを提供することを目的とする。
【0013】
【課題を解決するための手段】
本発明は上記目的を達成するために、電気井戸ポンプにおける制御部の電子回路と駆動素子の複数の端子をコネクタで接続する構成であって、前記駆動素子とコネクタ間に独立した複数の挿通空間を持つ電気絶縁性の保護カバーを設け、前記駆動素子の各端子をそれぞれ前記保護カバーの独立した複数の挿通空間に通した構成とする。
【0014】
本発明によれば、電気井戸ポンプにおける制御部を接続するトライアックの端子部を簡単に絶縁することができ、その制御部へのトライアックの組立て作業性、サービス性をよくすることができる。
【0015】
【発明の実施の形態】
本発明の請求項1に記載の発明は、水圧検知手段と流量検知手段と制御部を備えて自動運転を行う電気井戸ポンプであり、且つ、ビスにより駆動素子を放熱板に取り付け、該放熱板を制御部のケーシングに外付けし、制御部のケーシング内の電子回路にリード線を介して接続したコネクタを駆動素子の複数の端子にケーシング内において接続した電気井戸ポンプであって、前記駆動素子とコネクタ間に、内部にリブによって仕切られた独立した複数の挿通空間を持つと共に前記駆動素子及びコネクタとは別体で且つ電気絶縁性で筒状の保護カバーを設け、該保護カバーを駆動素子の外周に位置させ、前記駆動素子の各端子をそれぞれ保護カバーの独立した複数の挿通空間に通して保護カバーにより駆動素子の各端子を絶縁し、前記コネクタを保護カバーの内側において駆動素子の複数の端子に接続したものであり、電気井戸ポンプにおける制御部を接続するトライアックの端子部を簡単に絶縁することができ、しかも制御部へのトライアックの組立て作業性をよくし、サービス性もよくするという作用を有する。
【0016】
以下、本発明の実施の形態を図面を参照して説明する。
(実施の形態1)
図1は本発明の実施の形態1の電気井戸ポンプにおける制御部とトライアックの組立て構成を示す平面図、図2(a)は同電気井戸ポンプにおける制御部とトライアックの端子との接続部の構成を示す平面図、図2(b)は同電気井戸ポンプにおける制御部とトライアックの端子との接続部の構成を示す断側面図、図3は前記接続部に使用される保護カバーの構成を示す平面図である。なお、前記従来例と同一構成部品には同一符号を付与し、その説明は省略する。
【0017】
本実施の形態1の電気井戸ポンプは、制御部とトライアックの組立て構成に特徴を有し、さらに詳しくは、制御部とトライアックの端子との接続部に特異の構成をもつ保護カバーを使用したことに特徴を有する。
【0018】
図1に示すように、制御部9には駆動素子であるトライアック12が外付けされ、トライアック12の端子には制御部9の電子回路に接続するためのコネクタ16を差し込んであり、そしてこの接続部に保護カバー20を付設している。
【0019】
前記保護カバー20は絶縁性材料よりなり、図3に示すように筒状で、内部に3個のリブ21によって仕切られて独立した複数の挿通空間A、B、C、Dを有している。そして、前記3個のリブ21はトライアック12のT2端子とT1端子、G端子を仕切る関係をもたせている。
【0020】
前記保護カバー20の組み込みは、図2に示すように行われ、すなわち、トライアック12の外周に位置させ、挿通空間Bにトライアック12のT2端子を通し、その上からコネクタ16をトライアック12の端子に接続する。このとき、保護カバー20は、トライアック12とコネクタ16が接続したときにできる距離の中に、わずかな隙間を残した状態で取付けられる。この構成により、トライアック12のT1端子、G端子とT2端子はそれぞれ絶縁された空間を持つことができる。
【0021】
上記構成により、昆虫等が侵入しても、トライアック12の端子とトライアック取り付け用のビス14、制御部取付板8などとの漏電の防止ができ、また、トライアック12の端子間の絶縁が確実なものとなる。
【0022】
また、1点の部品で前記漏電防止と絶縁対策が可能であり、組立て工数の削減やサービス性の向上が図れる。
【0023】
【発明の効果】
以上の説明より明らかなように、本発明は制御部と駆動素子であるトライアックの接続部、すなわちトライアックとコネクタの間に独立した複数の挿通空間を持つ保護カバーを用いることにより、トライアック端子部を簡単に絶縁することができ、組立て作業性もよく、また、サービス性もよい電気井戸ポンプにおける制御部と駆動素子の接続部構成とすることができる。
【図面の簡単な説明】
【図1】本発明の実施の形態1の電気井戸ポンプにおける制御部とトライアックの組立て構成を示す平面図
【図2】(a)は同電気井戸ポンプにおける制御部とトライアックの端子との接続部の構成を示す平面図
(b)は同電気井戸ポンプにおける制御部とトライアックの端子との接続部の構成を示す断側面図
【図3】同電気井戸ポンプにおける制御部とトライアックの端子との接続部に使用される保護カバーの構成を示す平面図
【図4】従来の電気井戸ポンプの構成を示す斜視図
【図5】同電気井戸ポンプの駆動系の電気回路図
【図6】同電気井戸ポンプにおける制御部とトライアックの組立て構成を示す平面図
【図7】(a)は同電気井戸ポンプにおける制御部とトライアックの端子との接続部の構成を示す平面図
(b)は同電気井戸ポンプにおける制御部とトライアックの端子との接続部の構成を示す断側面図
【符号の説明】
2 モータ
3 ポンプ
4 圧力センサ
5 流量センサ
6 焼損防止器
9 制御部
12 トライアック
13 放熱板
14 ビス
15 ビス
16 コネクタ
18 進相コンデンサ
20 保護カバー
21 リブ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric well pump including a water pressure detecting means, a flow rate detecting means, and a control unit so that automatic operation can be performed by opening and closing a water faucet, and a driving element such as a triac that is energized and controlled by the control unit.
[0002]
[Prior art]
In general, an electric well pump detects a water pressure when a water tap is opened, operates the pump, detects a flow rate, and stops. In order to perform such an operation, the electric well pump shown in FIG. 4 is used.
[0003]
That is, a motor 2 and a pump 3 are installed on a base 1, a pressure sensor 4, a flow sensor 5, a burnout preventer 6 (not shown), and an accumulator 7 are attached. A control unit 9 is provided via the cover 10 and the whole is covered with a cover 10.
[0004]
Further, the electric circuit of the drive system is configured as shown in FIG. 5, that is, the triac 12 and the burnout preventer 6 which are drive elements having T1, T2, and G terminals are provided in the energization circuit of the motor 2 from the power source 11. The controller 9 controls the conduction of the triac 12 by signals from the pressure sensor 4 and the flow sensor 5.
[0005]
The assembly structure of the control unit 9 and the triac 12 is as shown in FIG. That is, the triac 12 is attached to the heat radiating plate 13 with screws 14, and the heat radiating plate 13 is attached to the casing of the control unit 9 with screws 15, so that the triac 12 is externally attached to the control unit 9. In the casing, the electronic circuit of the control unit 9 is connected to the terminal of the triac 12 via the lead wire and the connector 16, and an electrically insulating protective tube 17 is attached to the outer periphery of the connector 16. In the figure, 6 is a burnout preventer and 18 is a phase advance capacitor.
[0006]
By the way, generally, an electric well pump is often installed outdoors, and insects or the like may enter the pump cover 10. These insects enter between the conductive parts of the triac 12 as a driving element or between the conductive part of the triac 12 and the non-charged metal part of the product, and intervene between them, thereby causing abnormalities in the control system, electric leakage, etc. Problems may occur.
[0007]
In order to prevent this problem, an electrically insulating protective tube 17 is attached to the outer periphery of the terminal connection portion of the triac 12, that is, the outer periphery of the connector 16, and further, as shown in FIG. An insulating sheet 19 was provided, and an insulating distance was taken between the triac 12 and the control unit mounting plate 8.
[0008]
[Problems to be solved by the invention]
In such an assembly structure of the control unit 9 and the triac 12 in the conventional electric well pump, when the assembly is performed, first, the insulating sheet 19 is overlaid on the heat radiating plate 13, and the triac 12 is placed thereon, and the triac 12 is mounted. Secure with screws 14. Then, the connector 16 covered with the protective tube 17 is inserted into the terminal portion of the triac 12, and the control unit 9 and the heat radiating plate 13 are fixed with screws 15, and since the insulating sheet 19 is required, the work process is increased, and the service is increased. It was bad.
[0009]
In addition, since the T1 and G terminals other than the T2 terminal in the triac 12 are not insulated, leakage occurs when an insect is interposed between the T1 and G terminals of the triac 12 and the control unit mounting plate 8 that is conductive. As a countermeasure, it is necessary to secure a sufficient insulation distance, and there is a space problem in terms of the product. And it cannot be predicted how much insulation distance is required depending on the kind and size of insects.
[0010]
Further, the screw 14 for attaching the triac 12 is electrically connected to the earth ground through the heat radiating plate 13 and the control portion attaching plate 8, and therefore, the same problem as described above occurs.
[0011]
The mounting holes of the triac 12 are already determined depending on the parts, and it is impossible to further increase the insulation distance. To prevent this, the triac mounting screws 14 are completely insulated. There is a problem that it must be covered.
[0012]
SUMMARY OF THE INVENTION The present invention solves the above problems, and provides an electric well pump that can easily insulate a terminal portion of a TRIAC that connects a control unit, and has good workability and serviceability for assembling the TRIAC to the control unit. The purpose is to do.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has a configuration in which an electronic circuit of a control unit in an electric well pump and a plurality of terminals of a drive element are connected by a connector, and a plurality of insertion spaces independent between the drive element and the connector. An electrically insulating protective cover is provided, and each terminal of the drive element is passed through a plurality of independent insertion spaces of the protective cover.
[0014]
According to the present invention, it is possible to easily insulate the terminal portion of the triac connecting the control unit in the electric well pump, and to improve the assembly workability and serviceability of the triac to the control unit.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention, Ri electric well pump der to perform automatic operation provided with a control unit pressure detecting means and the flow rate detecting means, and, a drive element attached to the heat radiating plate by screws, heat radiating An electric well pump in which a plate is externally attached to a casing of a control unit, and a connector connected to an electronic circuit in the casing of the control unit via a lead wire is connected to a plurality of terminals of a driving element in the casing, between the device and the connector, inside provided a cylindrical protection cover and electrically insulating separately from the said drive elements and a connector with one lifting a plurality of insertion spaces separate partitioned by ribs, the protective cover Position the outer periphery of the driving element, pass each terminal of the driving element through a plurality of independent insertion spaces of the protective cover, insulate each terminal of the driving element by the protective cover, Mamoru is obtained by connecting a plurality of terminals of the driving element in the inside of the cover, can easily insulate the terminal portions of the triac connects the control unit in the electric well pump, moreover triac assembling workability to the control unit It has the effect of improving the serviceability.
[0016]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a plan view showing an assembly configuration of a control unit and a triac in the electric well pump according to Embodiment 1 of the present invention, and FIG. 2A is a configuration of a connection portion between the control unit and the triac terminal in the electric well pump. FIG. 2 (b) is a sectional side view showing the configuration of the connecting portion between the control unit and the TRIAC terminal in the electric well pump, and FIG. 3 shows the configuration of the protective cover used in the connecting portion. It is a top view. In addition, the same code | symbol is provided to the same component as the said prior art example, and the description is abbreviate | omitted.
[0017]
The electric well pump of the first embodiment has a feature in the assembly configuration of the control unit and the triac, and more specifically, a protective cover having a specific configuration is used at the connection portion between the control unit and the triac terminal. It has the characteristics.
[0018]
As shown in FIG. 1, a triac 12 as a drive element is externally attached to the control unit 9, and a connector 16 for connecting to an electronic circuit of the control unit 9 is inserted into a terminal of the triac 12. The protective cover 20 is attached to the part.
[0019]
The protective cover 20 is made of an insulating material, is cylindrical as shown in FIG. 3, and has a plurality of independent insertion spaces A, B, C, and D that are partitioned by three ribs 21 inside. . The three ribs 21 have a relationship for partitioning the T2 terminal, the T1 terminal, and the G terminal of the triac 12.
[0020]
The protective cover 20 is assembled as shown in FIG. 2, that is, positioned on the outer periphery of the triac 12, the T2 terminal of the triac 12 is passed through the insertion space B, and the connector 16 is connected to the terminal of the triac 12 from above. Connecting. At this time, the protective cover 20 is attached in a state where a slight gap is left in a distance that can be formed when the triac 12 and the connector 16 are connected. With this configuration, the T1 terminal, G terminal, and T2 terminal of the triac 12 can have insulated spaces.
[0021]
With the above configuration, even if an insect or the like enters, it is possible to prevent electric leakage between the terminal of the triac 12 and the screw 14 for attaching the triac, the control unit mounting plate 8, and the like, and insulation between the terminals of the triac 12 is ensured. It will be a thing.
[0022]
Moreover, the leakage prevention and insulation measures can be performed with a single component, so that the number of assembling steps can be reduced and the serviceability can be improved.
[0023]
【The invention's effect】
As is clear from the above description, the present invention uses a protective cover having a plurality of independent insertion spaces between the triac and the connector, i.e., the triac connecting portion, which is the control portion and the driving element, thereby providing a triac terminal portion. It is possible to easily connect the control unit and the drive element in the electric well pump with good assembly workability and good serviceability.
[Brief description of the drawings]
FIG. 1 is a plan view showing an assembly configuration of a control unit and a triac in the electric well pump according to the first embodiment of the present invention. FIG. 2 (a) is a connection part between the control unit and a triac terminal in the electric well pump. FIG. 3B is a cross-sectional side view showing the configuration of the connecting portion between the control unit and the TRIAC terminal in the electric well pump. FIG. 3 shows the connection between the control unit and the TRIAC terminal in the electric well pump. FIG. 4 is a perspective view showing the structure of a conventional electric well pump. FIG. 5 is an electric circuit diagram of a drive system of the electric well pump. FIG. 7A is a plan view showing the configuration of the connection between the control unit and the TRIAC terminal in the electric well pump. FIG. 7B is a plan view showing the assembly configuration of the control unit and the TRIAC in the pump. Sectional side view showing the configuration of a connection portion between the control unit and the triac terminal in flop EXPLANATION OF REFERENCE NUMERALS
2 Motor 3 Pump 4 Pressure sensor 5 Flow rate sensor 6 Burnout protector 9 Control unit 12 Triac 13 Heat sink 14 Screw 15 Screw 16 Connector 18 Phase advance capacitor 20 Protective cover 21 Rib

Claims (1)

水圧検知手段と流量検知手段と制御部を備えて自動運転を行う電気井戸ポンプであり、且つ、ビスにより駆動素子を放熱板に取り付け、該放熱板を制御部のケーシングに外付けし、制御部のケーシング内の電子回路にリード線を介して接続したコネクタを駆動素子の複数の端子にケーシング内において接続した電気井戸ポンプであって、前記駆動素子とコネクタ間に、内部にリブによって仕切られた独立した複数の挿通空間を持つと共に前記駆動素子及びコネクタとは別体で且つ電気絶縁性で筒状の保護カバーを設け、該保護カバーを駆動素子の外周に位置させ、前記駆動素子の各端子をそれぞれ保護カバーの独立した複数の挿通空間に通して保護カバーにより駆動素子の各端子を絶縁し、前記コネクタを保護カバーの内側において駆動素子の複数の端子に接続したことを特徴とする電気井戸ポンプ。 An electric well pump for automatic operation provided with a control unit pressure detecting means and the flow rate detecting means, and, a drive element attached to the heat radiating plate by screws, externally of the heat radiating plate to the casing of the control unit, the control unit An electrical well pump in which a connector connected to an electronic circuit in the casing via a lead wire is connected to a plurality of terminals of the driving element in the casing, and is partitioned between the driving element and the connector by a rib inside independent provided a tubular protective cover and electrically insulating separately from the plurality of the driving element and the connector with one lifting an insertion space, to position the said protective cover on the outer periphery of the drive element, each of the drive element Each terminal is passed through a plurality of independent insertion spaces of the protective cover, each terminal of the drive element is insulated by the protective cover, and the connector is connected to the drive element inside the protective cover. Electric well pump, characterized in that connected to the plurality of terminals.
JP23677297A 1997-09-02 1997-09-02 Electric well pump Expired - Fee Related JP4114219B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23677297A JP4114219B2 (en) 1997-09-02 1997-09-02 Electric well pump

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Application Number Priority Date Filing Date Title
JP23677297A JP4114219B2 (en) 1997-09-02 1997-09-02 Electric well pump

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JPH1182371A JPH1182371A (en) 1999-03-26
JP4114219B2 true JP4114219B2 (en) 2008-07-09

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Application Number Title Priority Date Filing Date
JP23677297A Expired - Fee Related JP4114219B2 (en) 1997-09-02 1997-09-02 Electric well pump

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Publication number Priority date Publication date Assignee Title
JP2016020843A (en) * 2014-07-14 2016-02-04 株式会社川本製作所 Detector and water supply device

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