JPH0338714B2 - - Google Patents
Info
- Publication number
- JPH0338714B2 JPH0338714B2 JP60114590A JP11459085A JPH0338714B2 JP H0338714 B2 JPH0338714 B2 JP H0338714B2 JP 60114590 A JP60114590 A JP 60114590A JP 11459085 A JP11459085 A JP 11459085A JP H0338714 B2 JPH0338714 B2 JP H0338714B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heating element
- control circuit
- temperature control
- circuit section
- 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
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Surface Heating Bodies (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はウオーターベツド袋体中の水温を常に
確実に検知できるようにしたウオーターベツド加
熱用面発熱体に関する。ウオーターベツドは、水
を密封袋体に収納し、この水をクツシヨン体とし
て使用し、収納した水をベツド基台と袋体の間に
配設された面発熱体により加熱して常に必要十分
な温度に保ち、上記袋体上に横臥したる人体をし
て快適な寝心地を得せしめるものである。
〔従来の技術〕
ウオーターベツドは第４図にその断面構成を示
すように、ベツド基台１と水密袋体２との間に面
発熱体３が接触介在している。袋体２には上記面
発熱体３により適温に加熱された水４が注入さ
れ、その上にシーツ５等を敷いて人体を横臥せし
めるものである。従来のウオーターベツド加熱用
面発熱体（以下、ウオーターベツド用発熱体と略
記する）は、第３図に示すように、二枚の絶縁保
護シート１１，１２とその間に蛇行挾持された発
熱導体１３とからなる発熱体３、この発熱体３の
温度を制御する温度制御回路部１４及びこの温度
制御回路と電気的に接続された温度検知用のサー
ミスタ１５から構成される。１６は電源に接続さ
れるプラグで、リード線１７により温度制御回路
部１４を介して発熱導体１３に電力を供給してい
る。１８は温度過昇防止用サーモスタツト、１９
は温度検知用サーミスタ１５と温度制御回路部１
４とを接続するリード線である。また２０は温度
制御回路部１４を内蔵した温度調節装置である。
〔発明が解決しようとする問題点〕
このように従来のウオーターベツド用発熱体
は、発熱体３、温度制御回路部１４及び温度検知
用サーミスタ１５が各々独立に存在しているた
め、次のような問題がある。リード線１９により
温度制御回路部と電気的に接続された温度検知用
サーミスタ１５が、水密袋体２の下部に正しく置
かれておればよいが、何らかの原因でこれが位置
ずれして、ベツドサイドなど袋体下部以外の場所
に放置されるような状況に至つたときには、水密
袋体２の正確な温度が検出されなくなるため、発
熱体３は長時間連続通電されることとなり安全性
の面から改善の必要があつた。また温度制御回路
部１４には、ドロツパー抵抗やスイツチング素子
から生ずる損失熱があるが、このロスとして生ず
る発熱が温度調節装置２０から空中に放散してし
まい、無駄に消費されることから、省エネルギー
の面で問題があつた。
〔問題点を解決するための手段〕
本発明は上記従来ウオーターベツド用面発熱体
のもつ問題点を解決するためになされたもので、
第１図及び第２図にその構成を示す。
本発明のウオーターベツド用発熱体は、二枚の
絶縁保護シート１１，１２とその間に蛇行挾持さ
れた発熱導体１３とからなる発熱体３、この発熱
体３の温度を制御する温度制御回路部１４及びこ
の温度制御回路と電気的に接続された温度検知用
サーミスタ１５から構成され、電源プラグ１６か
ら温度制御回路部１４を介して発熱導体１３に電
力が供給される点、電気回路的には従来のウオー
ターベツド用発熱体と同一構成である。しかしな
がら本発明においては、従来各々独立して存在し
た発熱体３、温度制御回路部１４及び温度検知用
サーミスタ１５を分散することなく、集中せしめ
たものである。即ち温度制御回路部１４及びこれ
と電気的に接続された温度検知用のサーミスタ１
５を、発熱体３の発熱導体パターンの直上に位置
しない絶縁保護シート面２１即ち非発熱部に載置
する。そして上記温度制御回路部１４は、放熱板
と機械的保護の役目を兼ねる金属ケース２２に収
納し、かつこの金属ケース２２と温度検知用のサ
ーミスタ１５及びサーモスタツト１８とを、合成
樹脂製保護カバー２３により覆い、これを前記水
密袋体２に密接せしめるようにしたものである。
温度制御回路部１４と温度検知用サーミスタ１５
とは離間して配設せしめる必要がある。温度制御
回路部１４と発熱導体１３との間に温度過昇防止
用サーモスタツト１８は介在せしめ、合成樹脂製
保護カバー２３の内部に置かれることが望まし
い。なお温度制御回路部１４からの放熱を良好に
するために、保護カバー２３の表面に重ねて金属
板を密着固定すれば、より効果的である。なお、
前記温度制御回路部１４の取付位置を発熱体３の
非発熱部２１と限定した理由は、温度制御回路部
１４が発熱体３の発熱導体パターン上に位置した
場合には前記ドロツパー抵抗やスイツチング素子
から生ずる損失熱の放散が悪くなり、温度制御回
路部１４は全体に高温になるため、これを構成し
ている各部品の耐熱グレードを高めることが必要
となり、温度制御回路部１４が高価格となり、か
つ故障の危険性も増すことになる。また、温度制
御回路部１４と温度検知用サーミスタ１５とを離
間して配設せしめる理由は、両者が近接した状態
ではサーミスタ１５が温度制御回路部１４から放
散される熱を受けて水密袋体２の正確な温度制御
ができないためである。
〔作業及び発明の効果〕
本発明のウオーターベツド用発熱体は、発熱体
３の非発熱部２１上に温度制御回路部１４及びこ
れと離間した温度検知用のサーミスタ１５を一体
に配設したものであるから、従来のように温度検
知用サーミスタ１５のみが袋体２下部から飛び出
して異常温度上昇をきたすといつた事故は起り得
ず、常に水密袋体の水温を正確に検知でき、安全
性が一段と高められる。また使用者が手元に置く
温度調節装置２０は、従来温度制御回路部１４を
内蔵するものであつたため、崇高となりがちであ
つたが、本発明によれば、可変抵抗器等数点の部
品を内蔵するに留まり、スイツチを兼ねるコント
ロールダイヤルのみでよいので、小型化が可能に
なり、価格上及び商品イメージ上有利となる。
一方、温度制御回路部１４からロスとして生じ
る発熱は、従来温度調節装置を通し空中に放産さ
れ無駄に消費されるものであつたが、本発明によ
れば放熱板を兼ねる金属ケース２２を介して水密
袋体２へ伝達されるため、放熱性の良いことは勿
論、水を加温するための一部のエネルギー源とし
て利用され、熱効率の向上が図れる。
以上説明したように、本発明により得られる効
果は大きく、本発明が産業に寄与するところ極め
て大である。 DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a surface heating element for heating a water bed, which allows the temperature of water in a water bed bag to be detected reliably at all times. A water bed stores water in a sealed bag body, uses this water as a cushion body, and heats the stored water with a surface heating element placed between the bed base and the bag body to always maintain the necessary and sufficient water. It maintains the temperature and allows the human body lying on the bag to have a comfortable sleeping experience. [Prior Art] As shown in the cross-sectional configuration of a waterbed in FIG. 4, a surface heating element 3 is interposed between a bed base 1 and a watertight bag body 2 in contact with each other. Water 4 heated to an appropriate temperature by the surface heating element 3 is poured into the bag body 2, and a sheet 5 or the like is spread on top of the water 4, and the human body is made to lie down. A conventional surface heating element for heating a water bed (hereinafter abbreviated as a heating element for a water bed), as shown in FIG. The heating element 3 is composed of a heating element 3, a temperature control circuit section 14 for controlling the temperature of the heating element 3 , and a thermistor 15 for temperature detection electrically connected to the temperature control circuit. A plug 16 is connected to a power source, and a lead wire 17 supplies power to the heat generating conductor 13 via the temperature control circuit section 14 . 18 is a thermostat for preventing excessive temperature rise, 19
are a temperature detection thermistor 15 and a temperature control circuit section 1
This is a lead wire that connects 4. Further, 20 is a temperature control device incorporating a temperature control circuit section 14. [Problems to be Solved by the Invention] As described above, in the conventional waterbed heating element, the heating element 3 , the temperature control circuit section 14, and the temperature detection thermistor 15 each exist independently, so that the following problems occur. There is a problem. It is sufficient if the temperature detection thermistor 15, which is electrically connected to the temperature control circuit section by the lead wire 19, is placed correctly at the bottom of the watertight bag body 2, but for some reason this may be misaligned and the bag may be placed on the bedside or other area. If the bag is left in a place other than the lower part of the body, the accurate temperature of the watertight bag 2 will not be detected, and the heating element 3 will be continuously energized for a long time, making it difficult to improve from a safety perspective. The need arose. Furthermore, in the temperature control circuit section 14, there is heat loss generated from the dropper resistance and switching elements, but the heat generated as this loss is dissipated into the air from the temperature control device 20 and is wasted, so it is not possible to save energy. There was a problem on the front. [Means for Solving the Problems] The present invention has been made to solve the problems of the above-mentioned conventional surface heating elements for water beds.
The configuration is shown in FIGS. 1 and 2. The heating element for a water bed of the present invention includes a heating element 3 consisting of two insulation protection sheets 11 and 12 and a heating conductor 13 meanderingly held between them, and a temperature control circuit section 14 that controls the temperature of the heating element 3 . and a temperature detection thermistor 15 electrically connected to this temperature control circuit, and power is supplied from a power plug 16 to the heat generating conductor 13 via the temperature control circuit section 14, which is a conventional electrical circuit. It has the same configuration as the heating element for water bed. However, in the present invention, the heating element 3 , the temperature control circuit section 14, and the temperature detection thermistor 15, which conventionally existed independently, are concentrated instead of being dispersed. That is, the temperature control circuit section 14 and the thermistor 1 for temperature detection electrically connected thereto.
5 is placed on the insulating protection sheet surface 21 of the heating element 3 that is not located directly above the heating conductor pattern, that is, on the non-heating part. The temperature control circuit section 14 is housed in a metal case 22 that serves as a heat sink and mechanical protection, and the metal case 22 and the thermistor 15 and thermostat 18 for temperature detection are enclosed in a synthetic resin protective cover. 23 and brought into close contact with the watertight bag body 2.
Temperature control circuit section 14 and temperature detection thermistor 15
It is necessary to place it away from the The thermostat 18 for preventing excessive temperature rise is interposed between the temperature control circuit section 14 and the heat generating conductor 13, and is preferably placed inside the protective cover 23 made of synthetic resin. In order to improve heat dissipation from the temperature control circuit section 14, it is more effective if a metal plate is tightly fixed over the surface of the protective cover 23. In addition,
The reason why the mounting position of the temperature control circuit part 14 is limited to the non-heat generating part 21 of the heat generating element 3 is that when the temperature control circuit part 14 is located on the heat generating conductor pattern of the heat generating element 3 , the dropper resistor and the switching element The dissipation of heat loss caused by the temperature control circuit section 14 becomes poor, and the entire temperature control circuit section 14 reaches a high temperature. Therefore, it is necessary to improve the heat resistance grade of each component that makes up the circuit section 14, and the temperature control circuit section 14 becomes expensive. , and the risk of failure also increases. Further, the reason why the temperature control circuit section 14 and the temperature detection thermistor 15 are arranged apart from each other is that when they are close to each other, the thermistor 15 receives heat dissipated from the temperature control circuit section 14 and the watertight bag body 2 This is because accurate temperature control is not possible. [Effects of Work and Invention] The heating element for a water bed of the present invention has a temperature control circuit section 14 and a thermistor 15 for temperature detection separated from this integrally disposed on the non-heat generating section 21 of the heating element 3. Therefore, unlike in the past, accidents such as when only the temperature detection thermistor 15 pops out from the bottom of the bag body 2 and causes an abnormal temperature rise cannot occur, and the water temperature in the watertight bag body can always be accurately detected, increasing safety. is further enhanced. In addition, the temperature control device 20 that the user has at hand has conventionally had a built-in temperature control circuit section 14, so it has tended to be expensive. Since it is only built-in and requires only a control dial that also serves as a switch, miniaturization is possible, which is advantageous in terms of price and product image. On the other hand, the heat generated as a loss from the temperature control circuit section 14 was conventionally released into the air through the temperature control device and was wasted, but according to the present invention, the heat generated as a loss is transmitted through the metal case 22 which also serves as a heat sink. Since the heat is transmitted to the watertight bag body 2, it not only has good heat dissipation properties but also is used as a part of the energy source for heating the water, improving thermal efficiency. As explained above, the effects obtained by the present invention are large, and the contribution of the present invention to industry is extremely large.
第１図は本発明に係るウオーターベツド用発熱
体の正面図、第２図は同要部拡大断面図である。
第３図は従来のウオーターベツド用発熱体の正面
図、第４図はウオーターベツド本体の断面図であ
る。
１……ベツド基台、２……水密袋体、３……発
熱体、１１，１２……絶縁保護シート、１３……
発熱導体、１４……温度制御回路部、１５……温
度検知用のサーミスタ、２０……温度調節装置、
２１……非発熱部、２２……金属ケース、２３…
…合成樹脂製保護カバー。
FIG. 1 is a front view of a heating element for a water bed according to the present invention, and FIG. 2 is an enlarged sectional view of the same essential part.
FIG. 3 is a front view of a conventional heating element for a water bed, and FIG. 4 is a sectional view of the water bed main body. 1...Bed base, 2...Watertight bag body, 3 ...Heating element, 11, 12...Insulating protection sheet, 13...
Heat generating conductor, 14...Temperature control circuit section, 15...Thermistor for temperature detection, 20...Temperature adjustment device,
21... Non-heat generating part, 22... Metal case, 23...
...Synthetic resin protective cover.
Claims (1)
蛇行挾持された発熱導体１３とからなる発熱体
３、前記発熱体３上に配置された温度過昇防止用
サーモスタツト１８、前記発熱体３の温度を制御
するための温度制御回路部１４を内蔵する温度調
節装置２０及び前記発熱体３とは別体に配置され
前記温度調節装置２０と電気的に接続された温度
検知用のサーミスタ１５を具備し、前記発熱体３
及び前記温度検知用サーミスタ１５とをベツド基
台１と水密袋体２間に配設してなるウオーターベ
ツド用発熱体において、前記発熱体３の発熱導体
１３のパターン上に位置しない絶縁保護シート面
２１に、前記サーモスタツト１８と温度調節装置
２０から取り出した温度制御回路部１４とこの温
度制御回路部１４と電気的に接続された温度検知
用サーミスタ１５とを離間して載置すると共に、
上記温度制御回路部１４を金属ケース２２に収納
し、かつこの金属ケース２２と少なくとも前記温
度検知用サーミスタ１５とを、合成樹脂製保護カ
バー２３により覆つたことを特徴とするウオータ
ーベツド用発熱体。 1 A heating element 3 consisting of two insulating protective sheets 11 and 12 and a heating conductor 13 meanderingly held between them; a thermostat 18 for preventing excessive temperature rise disposed on the heating element 3 ; A temperature adjusting device 20 incorporating a temperature control circuit section 14 for controlling temperature, and a thermistor 15 for temperature detection arranged separately from the heating element 3 and electrically connected to the temperature adjusting device 20 are provided. and the heating element 3
In the heating element for a water bed, in which the temperature detection thermistor 15 is disposed between the bed base 1 and the watertight bag body 2, an insulating protection sheet surface that is not located on the pattern of the heating conductor 13 of the heating element 3 ; 21, the thermostat 18, the temperature control circuit section 14 taken out from the temperature adjustment device 20, and the temperature detection thermistor 15 electrically connected to the temperature control circuit section 14 are placed separately, and
A heating element for a waterbed, characterized in that the temperature control circuit section 14 is housed in a metal case 22, and the metal case 22 and at least the temperature detection thermistor 15 are covered with a protective cover 23 made of synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11459085A JPS61271773A (en) | 1985-05-27 | 1985-05-27 | Heat generating body for water bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11459085A JPS61271773A (en) | 1985-05-27 | 1985-05-27 | Heat generating body for water bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61271773A JPS61271773A (en) | 1986-12-02 |
| JPH0338714B2 true JPH0338714B2 (en) | 1991-06-11 |
Family
ID=14641664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11459085A Granted JPS61271773A (en) | 1985-05-27 | 1985-05-27 | Heat generating body for water bed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61271773A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01141553U (en) * | 1988-03-16 | 1989-09-28 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642319Y2 (en) * | 1977-08-30 | 1981-10-02 | ||
| JPS59112493U (en) * | 1982-12-28 | 1984-07-30 | 三菱瓦斯化学株式会社 | heater |
-
1985
- 1985-05-27 JP JP11459085A patent/JPS61271773A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61271773A (en) | 1986-12-02 |
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