JPH04129Y2 - - Google Patents
Info
- Publication number
- JPH04129Y2 JPH04129Y2 JP20092386U JP20092386U JPH04129Y2 JP H04129 Y2 JPH04129 Y2 JP H04129Y2 JP 20092386 U JP20092386 U JP 20092386U JP 20092386 U JP20092386 U JP 20092386U JP H04129 Y2 JPH04129 Y2 JP H04129Y2
- Authority
- JP
- Japan
- Prior art keywords
- thermostat
- power cord
- contact
- water supply
- connector
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 230000002528 anti-freeze Effects 0.000 claims description 16
- 230000013011 mating Effects 0.000 claims description 7
- 239000012777 electrically insulating material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 20
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Resistance Heating (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は寒冷地等における水道の凍結を防止す
るために用いる水道凍結防止器に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water supply antifreeze device used to prevent water supply from freezing in cold regions.
［従来の技術］
従来、水道凍結防止器には水道管に帯状のヒー
タ体を巻着して用いるものがある。[Prior Art] Conventionally, some water supply antifreeze devices are used by wrapping a belt-shaped heater body around a water pipe.
この水道凍結防止器は、第５図及び第６図に示
すように、発熱線５１が長手方向に並列して配設
された発熱帯５２を有している。発熱帯５２は発
熱線５１を塩化ビニール樹脂材やゴム材などを帯
状に形成した内部に設けたものである。この発熱
帯５２は可撓性を有するもので、発熱帯５２の一
方端部５５において発熱線５１と電源コード５７
が接続されている。 As shown in FIGS. 5 and 6, this water supply antifreeze device has a heating zone 52 in which heating wires 51 are arranged in parallel in the longitudinal direction. The heating zone 52 has a heating wire 51 disposed inside a belt-shaped material such as vinyl chloride resin or rubber. This heating zone 52 is flexible, and at one end 55 of the heating zone 52, a heating wire 51 and a power cord 57 are connected.
is connected.
さらに、電源コード５７の他端には、電源プラ
グ５９が接続されている。 Further, a power plug 59 is connected to the other end of the power cord 57.
また、発熱帯５２の他端部分６１は、各々の発
熱線５１の端が接続されている。 Further, the other end portion 61 of the heating zone 52 is connected to the end of each heating wire 51.
そして、発熱帯５２の内部の複数の発熱線５１
のうち、一本の発熱線５１の中間部分には、サー
モスタツト６５を介して接続されており、サーモ
スタツト６５部分は、発熱帯５２と同材料にてモ
ールド成形がほどこされている。 A plurality of heating wires 51 inside the heating zone 52
The middle portion of one of the heating wires 51 is connected via a thermostat 65, and the thermostat 65 is molded from the same material as the heating zone 52.
したがつて、発熱帯５２を、たとえば水道管に
巻着して用い、サーモスタツト６５で温度調節が
行われる。 Therefore, the heating zone 52 is used by wrapping it around a water pipe, for example, and the temperature is controlled by the thermostat 65.
［考案が解決しようとする問題点］
しかしながら、水道凍結防止のサーモスタツト
６５は、ゆるやかな温度変化の中で用いられるた
め、クイツクアクシヨンタイプのサーモスタツト
を用いなければ、電波障害等の問題が起こる。[Problems to be solved by the invention] However, since the thermostat 65 for preventing water water from freezing is used under gradual temperature changes, problems such as radio wave interference may occur unless a quick-action type thermostat is used. happens.
したがつて、第７図に示すように、サーモスタ
ツト６５の接点の開閉温度差が大きく必要以上に
通電されることが多い。 Therefore, as shown in FIG. 7, the difference in temperature between opening and closing of the contacts of the thermostat 65 is large, and more current is often applied than necessary.
それ故に、本考案の目的は、通常閉路すべき雰
囲気温度に到達する以前にサーモスタツトを閉路
させて余分な通電を遮断する水道凍結防止器を提
供することにある。 SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a water supply antifreeze device that closes the thermostat to cut off excess electricity before reaching the ambient temperature at which it should normally be closed.
［問題点を解決するための手段］
本考案によれば、電源コードの一方端を電気絶
縁材料によつて作られたハウジング内に導入し
て、該ハウジング内に設けた導電性のコンタクト
に上記電源コードを接続したコネクタと、該コネ
クタの上記コンタクトに着脱可能に嵌合する導電
性の相手コンタクトを含む可撓性を有する帯状ヒ
ータ体とを有し、上記コンタクトの一方のコンタ
クトと上記電源コードの一方端との間にサーモス
タツトを有し、該サーモスタツトの両端と互いの
コンタクトとの間に、抵抗器、ダイオード及び電
源表示灯を直列に接続し、上記サーモスタツトの
近傍には、少なくとも上記抵抗器が設けられてい
ることを特徴とする水道凍結防止器が得られる。[Means for Solving the Problem] According to the present invention, one end of the power cord is introduced into a housing made of an electrically insulating material, and the conductive contact provided in the housing is connected to the above-mentioned one end. The connector includes a connector to which a power cord is connected, and a flexible belt-shaped heater body including a conductive mating contact that is removably fitted to the contact of the connector, one of the contacts and the power cord. A resistor, a diode, and a power indicator light are connected in series between both ends of the thermostat and each contact, and in the vicinity of the thermostat, at least A water supply anti-freeze device is obtained, which is characterized by being provided with the above-mentioned resistor.
［実施例］
第１図乃至第３図は本考案の水道凍結防止器の
一実施例を示している。[Embodiment] FIGS. 1 to 3 show an embodiment of the water supply antifreeze device of the present invention.
図示の水道凍結防止器は、電源コード１ａ，１
ｂの一方端を電気絶縁材料によつて作られたハウ
ジング３の内部に導入して、このハウジング３の
内部に設けた導電性のコンタクト５ａ，５ｂに電
源コード１を接続したコネクタ９を有している。 The illustrated water supply antifreeze device has power cords 1a, 1
A connector 9 is provided in which one end of the power cord 1 is introduced into a housing 3 made of an electrically insulating material, and a power cord 1 is connected to conductive contacts 5a and 5b provided inside the housing 3. ing.
コネクタ９のコンタクト５ａ，５ｂには、導電
性の相手コンタクト１１ａ，１１ｂを含む可撓性
を有する帯状のヒータ体１３が着脱可能に嵌合さ
れて電気的な接続が得られる。 A flexible band-shaped heater body 13 including conductive mating contacts 11a and 11b is removably fitted into the contacts 5a and 5b of the connector 9 to establish an electrical connection.
図示のコンタクト５ａ，５ｂは、２つのソケツ
トコンタクトが用いられ、このコンタクト５に着
脱可能に嵌合される相手コンタクト１１は２つの
ピンコンタクトが用いられている。 The illustrated contacts 5a and 5b are two socket contacts, and the mating contact 11 that is removably fitted to the contact 5 is two pin contacts.
帯状のヒータ体１３は可撓性を有する樹脂１８
の内部に発熱線２０が埋設されている。 The band-shaped heater body 13 is made of flexible resin 18
A heating wire 20 is buried inside.
相手コンタクト１１には樹脂１８によつて固定
されて、相手コネクタ２５が形成されている。 A mating connector 25 is formed by being fixed to the mating contact 11 with resin 18.
一方、コネクタ９の一方のコンタクト５ａと一
方の電源コード１ａとの間には、サーモスタツト
２７が接続されている。サーモスタツト２７の両
端と、他方のコンタクト５ｂとの間には、抵抗器
３０、ダイオード３１及び電源表示灯３２が直列
に接続されている。 On the other hand, a thermostat 27 is connected between one contact 5a of the connector 9 and one power cord 1a. A resistor 30, a diode 31, and a power indicator light 32 are connected in series between both ends of the thermostat 27 and the other contact 5b.
各々の抵抗器３０は、ハウジング３の内部にお
いて、サーモスタツト２７の近傍に設けられてい
る。各々の電源表示灯３２はハウジング３に形成
された貫通穴３５に嵌め込まれている。ハウジン
グ３には、透光性を有する樹脂材のカバー体３９
によつて覆われている。 Each resistor 30 is provided inside the housing 3 near the thermostat 27. Each power indicator light 32 is fitted into a through hole 35 formed in the housing 3. The housing 3 includes a cover body 39 made of a transparent resin material.
covered by.
今、ヒータ体１３は水道管等の管体（図示せ
ず）の周面に巻かれる。この際、相手コンタクト
１１ａ，１１ｂには、コネクタ９のコンタクト５
ａ，５ｂが嵌合される。そして、電源コード１
ａ，１ｂの他端に接続された電源プラグ４０を電
源に差込むと、ヒータ体１３に通電が行われる。 The heater body 13 is now wound around the circumferential surface of a pipe (not shown) such as a water pipe. At this time, the mating contacts 11a and 11b include the contact 5 of the connector 9.
a and 5b are fitted together. And power cord 1
When the power plug 40 connected to the other ends of a and 1b is inserted into a power source, the heater body 13 is energized.
したがつて、管体の内部の水は保温されて凍結
が防止される。 Therefore, the water inside the tube is kept warm and prevented from freezing.
この際、サーモスタツト２７の近傍には、抵抗
器３０が設けられているため、サーモスタツト２
７の近傍の温度が上昇するため、第４図に示すよ
うに、通常の雰囲気温度よりも早く、サーモスタ
ツト２７の閉路が形成される。 At this time, since a resistor 30 is provided near the thermostat 27, the thermostat 2
Since the temperature near 7 increases, the thermostat 27 closes earlier than the normal ambient temperature, as shown in FIG.
このため、ヒータ体１３の発熱線２０には、余
分な通電、即ち第４図に示すＨが遮断される。 Therefore, excess current, ie, H shown in FIG. 4, is cut off to the heating wire 20 of the heater body 13.
一般に、水道凍結防止器においては、管体内の
水の温度を０度以下にならないようにすれば凍結
しないため余分な加熱、即ち、第７図に示すヒー
タ体１３の表面温度を必要としない。 Generally, in a water supply antifreeze device, if the temperature of the water in the tube is kept below 0 degrees, the water will not freeze, so extra heating, ie, the surface temperature of the heater body 13 shown in FIG. 7, is not required.
［考案の効果］
以上本考案の水道凍結防止器の実施例によつて
述べたように、コネクタ内のサーモスタツトの近
傍に抵抗器を設けたため、ヒータ体への余分な通
電を遮断できる。この結果、水道凍結防止器は省
エネルギー効果が得られる。[Effects of the Invention] As described above with respect to the embodiments of the water supply antifreeze device of the present invention, since the resistor is provided in the vicinity of the thermostat in the connector, excess current to the heater body can be cut off. As a result, the water supply antifreeze device can achieve energy saving effects.
第１図は本考案の水道凍結防止器のコネクタの
一実施例を示す分解斜視図、第２図は本考案の水
道凍結防止器の一実施例を示す斜視図、第３図は
第２図に示した水道凍結防止器の回路図、第４図
は、本考案の水道凍結防止器の一実施例におけ
る、ヒータ体の表面温度とサーモスタツトの設定
温度とを示すグラフ。第５図は従来の水道凍結防
止器の平面断面図、第６図は第５図の水道凍結防
止器の回路図、第７図は第５図の発熱帯の表面温
度とサーモスタツトの設定温度とを示すグラフで
ある。
１……発熱線、２……発熱帯、１５……サーモ
スタツト、１ａ，１ｂ……電源コード、３……ハ
ウジング、９……コネクタ、５ａ，５ｂ……コン
タクト、１３……ヒータ体、２７……サーモスタ
ツト、３０……抵抗器。
Fig. 1 is an exploded perspective view showing one embodiment of the connector of the water supply antifreeze device of the present invention, Fig. 2 is a perspective view showing an embodiment of the water supply antifreeze device of the present invention, and Fig. 3 is the second embodiment. FIG. 4 is a graph showing the surface temperature of the heater body and the set temperature of the thermostat in one embodiment of the water supply antifreeze device of the present invention. Figure 5 is a cross-sectional plan view of a conventional water supply antifreeze device, Figure 6 is a circuit diagram of the water supply antifreeze device shown in Figure 5, and Figure 7 is the surface temperature of the heating zone shown in Figure 5 and the set temperature of the thermostat. It is a graph showing. 1...Heating wire, 2...Heating zone, 15...Thermostat, 1a, 1b...Power cord, 3...Housing, 9...Connector, 5a, 5b...Contact, 13...Heater body, 27 ...Thermostat, 30...Resistor.
Claims (1)
られたハウジング内に導入して、該ハウジング内
に設けた導電性のコンタクトに上記電源コードを
接続したコネクタと、該コネクタの上記コンタク
トに着脱可能に嵌合する導電性の相手コンタクト
を含む帯状ヒータ体とを有し、上記コンタクトの
一方のコンタクトと上記電源コードの一方端との
間に接続したサーモスタツトを有し、該サーモス
タツトの両端と互いのコンタクトとの間に、抵抗
器、ダイオード及び電源表示灯を直列に接続し、
上記サーモスタツトの近傍には、少なくとも上記
抵抗器が設けられていることを特徴とする水道凍
結防止器。 One end of the power cord is introduced into a housing made of electrically insulating material, and the power cord is connected to a conductive contact provided in the housing, and the power cord is connected to the connector, and the power cord can be attached to and detached from the contact of the connector. a strip-shaped heater body including a conductive mating contact that fits into the heater body; a thermostat connected between one of the contacts and one end of the power cord; both ends of the thermostat Connect a resistor, diode, and power indicator light in series between each contact,
A water supply antifreeze device, characterized in that at least the resistor is provided near the thermostat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20092386U JPH04129Y2 (en) | 1986-12-27 | 1986-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20092386U JPH04129Y2 (en) | 1986-12-27 | 1986-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63108460U JPS63108460U (en) | 1988-07-13 |
| JPH04129Y2 true JPH04129Y2 (en) | 1992-01-06 |
Family
ID=31163895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20092386U Expired JPH04129Y2 (en) | 1986-12-27 | 1986-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04129Y2 (en) |
-
1986
- 1986-12-27 JP JP20092386U patent/JPH04129Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63108460U (en) | 1988-07-13 |
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