JPH06176857A - Car sheet heater - Google Patents
Car sheet heaterInfo
- Publication number
- JPH06176857A JPH06176857A JP33023892A JP33023892A JPH06176857A JP H06176857 A JPH06176857 A JP H06176857A JP 33023892 A JP33023892 A JP 33023892A JP 33023892 A JP33023892 A JP 33023892A JP H06176857 A JPH06176857 A JP H06176857A
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- ptc
- ptc heating
- resistor
- conductive
- 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.)
- Pending
Links
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Surface Heating Bodies (AREA)
- Control Of Resistance Heating (AREA)
- Resistance Heating (AREA)
- Central Heating Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、発熱体線を配設し保持
する支持体を有する車両座席等に利用するカーシートヒ
ータに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car seat heater for use in a vehicle seat or the like having a support for disposing and holding a heating wire.
【０００２】[0002]
【従来の技術】近年、車両用座席に電気ヒータによる暖
房が行われるようになった。2. Description of the Related Art In recent years, vehicle seats have been heated by electric heaters.
【０００３】従来の電気ヒータによる暖房は、発熱体に
図７に示すようなチュービングヒータ２０が使用されて
いた。図７中のチュービングヒータ２０は以下のように
構成される。２１は可とう性を有する芯糸、２２は内部
電極、２３は電気絶縁材よりなる分離層、２４は外部電
極、２５は内側高分子層、２６は外側高分子層である。
このチュービングヒータ２０では温度を測定するための
温度検知線が別に必要であった。たとえ、チュービング
ヒータ２０に温度検知もできるようにしても温度制御方
法が困難で制御回路も複雑になってしまう。また、この
ようなチュービングヒータ２０は即熱性が低いため、通
電を始めてから必要な温度に到達するまで一定の時間を
経過しなければならない。そこで即熱性があることか
ら、発熱体に温度係数が正で大きい材料の抵抗体（以下
ＰＴＣ抵抗体と略す）を間に挟んだ一対の電極からなる
自己温度制御発熱体（以下ＰＴＣ発熱体と略す）を使用
したヒータユニットが考えられてきた。これは、前記一
対の電極間に電圧を印加すると、ＰＴＣ抵抗体が有する
抵抗温度特性から電極間を流れる電流によってＰＴＣ抵
抗体が瞬時に放熱と発熱のバランス点で一定に保とうと
するので、即熱性があり、全体的に均一な温度が得られ
る。In conventional heating with an electric heater, a tubing heater 20 as shown in FIG. 7 is used as a heating element. The tubing heater 20 in FIG. 7 is configured as follows. Reference numeral 21 is a flexible core yarn, 22 is an internal electrode, 23 is a separation layer made of an electrically insulating material, 24 is an external electrode, 25 is an inner polymer layer, and 26 is an outer polymer layer.
In this tubing heater 20, a temperature detection line for measuring the temperature was separately required. Even if the tubing heater 20 can detect the temperature, the temperature control method is difficult and the control circuit becomes complicated. Further, since such a tubing heater 20 has a low immediate heating property, a certain period of time has to elapse from the start of energization until the required temperature is reached. Therefore, the self-temperature control heating element (hereinafter referred to as PTC heating element) is composed of a pair of electrodes sandwiching a resistance element (hereinafter abbreviated as PTC resistor) made of a material having a large positive temperature coefficient in the heating element because of its immediate heating property. A heater unit using (abbreviated) has been considered. This is because when a voltage is applied between the pair of electrodes, the PTC resistor instantly tries to maintain a constant balance between heat dissipation and heat generation due to the current flowing between the electrodes due to the resistance temperature characteristic of the PTC resistor. It is heat-resistant and has a uniform temperature throughout.
【０００４】[0004]
【発明が解決しようとする課題】しかし、このＰＴＣ発
熱体においてＰＴＣ抵抗体材料の抵抗温度特性が何等か
の原因で経時変化してしまうと、そのためＰＴＣ抵抗体
を流れる電流による発熱量と発せられる放熱量のバラン
スによって決定される自己制御温度が変化してしまうこ
とになる。これはＰＴＣ抵抗体の抵抗温度特性の変化が
抵抗値が小さくなる方向の変化である場合は発熱温度が
高くなる。反対に、抵抗温度特性の変化が抵抗値が大き
くなる方向の変化であれば自己制御温度は低くなり、Ｐ
ＴＣ発熱体は発熱しなくなる。従来、このＰＴＣ発熱体
の抵抗温度特性が変化したことを検知する手段を持たな
いため、自己制御温度が高くなる方向、または低くなる
（発熱しなくなる）方向にＰＴＣ発熱体の抵抗温度特性
が変化したことを検知できないという課題があった。However, if the resistance temperature characteristic of the PTC resistor material changes with time in this PTC heating element for some reason, the amount of heat generated by the current flowing through the PTC resistor is generated. The self-control temperature determined by the balance of the amount of heat radiation will change. This is because the heat generation temperature increases when the resistance-temperature characteristic of the PTC resistor changes in the direction in which the resistance value decreases. On the contrary, if the change in the resistance-temperature characteristic is such that the resistance value increases, the self-control temperature decreases and P
The TC heating element ceases to generate heat. Conventionally, since there is no means for detecting that the resistance temperature characteristic of the PTC heating element has changed, the resistance temperature characteristic of the PTC heating element changes in a direction in which the self-control temperature increases or decreases (stops heat generation). There was a problem that it could not detect what was done.
【０００５】本発明の目的は、上記課題を解決するもの
でＰＴＣ発熱体の抵抗温度特性の異常を検知し、異常が
発生した場合にＰＴＣ発熱体への通電を制御して安全に
使用できるカーシートヒータを提供することにある。An object of the present invention is to solve the above-mentioned problems by detecting an abnormality in the resistance-temperature characteristic of a PTC heating element, and controlling the energization of the PTC heating element when an abnormality occurs so that the vehicle can be used safely. To provide a seat heater.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に本発明は、一定の間隔で平行に対向して配置する一対
の長尺の金属電極線と、前記電極線に結晶性高分子と導
電性微粉末からなる混合物を架橋処理および粉砕処理し
た導電性粒子と、カーボン粒子を結晶性高分子組成物に
混合分散して形成された導電性組成物を主成分とする正
抵抗温度係数を有する抵抗体を被覆して一体に成形さ
れ、前記抵抗体を電気絶縁体で被覆してなるＰＴＣ発熱
体と前記ＰＴＣ発熱体を保持するヒータユニットと、通
電時に前記ＰＴＣ発熱体に流れる電流を検出し通電制御
するコントローラという構成を備えたものである。In order to solve the above-mentioned problems, the present invention provides a pair of long metal electrode wires arranged in parallel and facing each other at regular intervals, and a crystalline polymer on the electrode wires. Conductive particles obtained by cross-linking and pulverizing a mixture of conductive fine powder, and a positive resistance temperature coefficient mainly composed of a conductive composition formed by mixing and dispersing carbon particles in a crystalline polymer composition. A PTC heating element formed by integrally covering a resistor having the same and covering the resistor with an electric insulator, a heater unit for holding the PTC heating element, and a current flowing through the PTC heating element when energized is detected. It is provided with a configuration called a controller for controlling energization.
【０００７】[0007]
【作用】本発明は、上記した構成によって、ＰＴＣ発熱
体の自己温度制御性から即熱性が高いヒータユニットが
得られ、またＰＴＣ発熱体を流れる電流の大きさを検知
してこの検出電流値があらかじめ設定しておいた電流値
の範囲を逸脱した場合は、ＰＴＣ発熱体への通電を制御
する。According to the present invention, with the above-described structure, a heater unit having a high heat-up property can be obtained from the self-temperature controllability of the PTC heating element, and the detected current value can be detected by detecting the magnitude of the current flowing through the PTC heating element. When the current value deviates from the preset current value range, the energization of the PTC heating element is controlled.
【０００８】[0008]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１は、この発明の一実施例のカーシートヒー
タの基本的な構成を示す斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the basic configuration of a car seat heater according to an embodiment of the present invention.
【０００９】図１において、車両用座席３の座部４と背
もたれ部５にはそれぞれヒータユニット１を配設してい
る。そして、このヒータユニット１は座部４と背もたれ
部５の表皮部６と、メインパッド部７との間に装着さ
れ、座席面の暖房を行うものである。このような車両用
座席３の暖房に使用されるヒータユニット１は、図２に
示すように２枚の布体８を貼合わせ、その間にＰＴＣ発
熱体９が保持されている。１０は、自動車からのバッテ
リ電力を供給するためのコネクタである。２は、ＰＴＣ
発熱体９への通電を制御する回路を組み込んだコントロ
ーラである。ヒータユニットの断面形状は図３に示す構
成となっている。In FIG. 1, a heater unit 1 is provided in each of a seat portion 4 and a backrest portion 5 of a vehicle seat 3. The heater unit 1 is mounted between the seat portion 4, the skin portion 6 of the backrest portion 5, and the main pad portion 7 to heat the seat surface. In the heater unit 1 used for heating the vehicle seat 3 as described above, two cloth bodies 8 are bonded together as shown in FIG. 2, and a PTC heating element 9 is held between them. 10 is a connector for supplying battery power from the automobile. 2 is PTC
This is a controller that incorporates a circuit that controls the energization of the heating element 9. The heater unit has a cross-sectional shape shown in FIG.
【００１０】図４は、ＰＴＣ発熱体９を示した断面構造
図である。図４において、１１は一定間隔で平行に対向
して配置された金属電極線で、前記電極線１１に結晶性
高分子と導電性微粉末からなる混合物を架橋処理及び粉
砕処理した導電性粒子と、カーボン粒子を結晶性高分子
組成物に混合分散して形成された導電性組成物を主成分
とする正抵抗温度係数を有する抵抗体１２で被覆し、前
記ＰＴＣ抵抗体１２を電気絶縁体１３で被覆してＰＴＣ
発熱体９としたものである。金属電極線１１は、外径
０.1mmの銅線を１６本よりしたものを用いた。さらに電
気絶縁体１３としてポリエステルを用いたが、ポリ塩化
ビニルやポリフェニレンサルファイド等であってもよ
い。ＰＴＣ抵抗体１２は下記組成物からなる。結晶性高
分子組成物としてポリエチレンを用い、導電性微粉末と
して、６０重量％のファーネスブラックを含む高密度ポ
リエチレン混練物１００重量部に架橋剤としてジクミル
パーオキサイドを４.5重量部配合したものを１８０℃で
１時間熱処理を施すことにより得た架橋物を冷凍粉砕に
より平均粒子径約５０μｍの導電粒子を作成した。その
後、この架橋粉砕導電粒子と粒径約０.1μｍのカーボン
を１０対１の比率から成る混合物を高密度ポリエチレン
中に全カーボン量が組成比５０重量％になるように混練
したものをＰＴＣ抵抗体１２として用いた。なお、この
ＰＴＣ抵抗体１２は、６×１０2Ω−cmの体積固有抵抗
値を示した。なお、前記実施例では結晶性高分子として
ポリエチレンを用いたがポリアミド、ポリプロピレン等
であってもよい。FIG. 4 is a sectional structural view showing the PTC heating element 9. In FIG. 4, reference numeral 11 denotes metal electrode wires arranged in parallel at regular intervals, and conductive particles obtained by subjecting the electrode wires 11 to crosslinking and pulverizing a mixture of a crystalline polymer and conductive fine powder. , The carbon particles are mixed and dispersed in the crystalline polymer composition, and the PTC resistor 12 is covered with a resistor 12 having a positive temperature coefficient of resistance, which is mainly composed of a conductive composition, and the PTC resistor 12 is electrically insulated. Covered with PTC
The heating element 9 is used. The metal electrode wire 11 used was made of 16 copper wires having an outer diameter of 0.1 mm. Further, although polyester is used as the electric insulator 13, it may be polyvinyl chloride, polyphenylene sulfide, or the like. The PTC resistor 12 is made of the following composition. Polyethylene was used as the crystalline polymer composition, and 100 parts by weight of a high-density polyethylene kneaded material containing 60% by weight of furnace black as conductive fine powder was mixed with 4.5 parts by weight of dicumyl peroxide as a crosslinking agent. Was heat-treated at 180 ° C. for 1 hour to freeze-pulverize the crosslinked product to prepare conductive particles having an average particle size of about 50 μm. Then, a mixture of the crosslinked crushed conductive particles and carbon having a particle diameter of about 0.1 μm in a ratio of 10: 1 was kneaded in high-density polyethylene so that the total carbon content was 50% by weight, and the PTC resistance was obtained. Used as the body 12. The PTC resistor 12 showed a volume resistivity value of 6 × 10 2 Ω-cm. Although polyethylene was used as the crystalline polymer in the above-mentioned examples, polyamide, polypropylene or the like may be used.
【００１１】上記のように作成したヒータユニット１の
表面温度は、自動車用バッテリからＤＣ１２Ｖを印加し
た時、接触暖房に程良い温度５５℃となった。The surface temperature of the heater unit 1 produced as described above was 55 ° C., which is suitable for contact heating, when DC 12 V was applied from the automobile battery.
【００１２】図５に、上記のように作成されたＰＴＣ発
熱体９の抵抗温度特性を示す。ここでは、ＰＴＣ発熱体
が熱履歴を受ける前の初期特性をＴ0 とする。Ｔ1 は熱
履歴を受けたために同一温度で見て抵抗値が低くなる方
向に変化したときのＰＴＣ発熱体９の抵抗温度特性を示
している。これは、熱履歴を受けたために経時変化でＰ
ＴＣ抵抗体１２中のカーボン粒子等の導電性粉末が凝集
するため或いは金属粉末の混入等により抵抗値が低くな
り、熱履歴を受ける前の初期特性と比較した場合、発熱
温度が高くなる異常発熱を起こした場合である。この場
合の電流値は初期と比較して著しく大きな電流が流れ
る。またＴ2 は熱履歴を受けたために同一温度で見て抵
抗値が高くなる方向に変化したときのＰＴＣ発熱体９の
抵抗温度特性である。これは、熱履歴を受けたために経
時変化により、ＰＴＣ抵抗体中１６が熱劣化により抵抗
値が高くなり、熱履歴を受ける前の初期特性と比較した
場合、発熱温度が低くなるためである。この場合、ＰＴ
Ｃ発熱体は初期と比較して電流値は著しく小さくなる。
一般にＰＴＣ発熱体９の抵抗温度特性の長期的な経時変
化は、Ｔ0 の初期特性から、Ｔ1 を経てＴ2 の抵抗温度
特性を示す。FIG. 5 shows resistance-temperature characteristics of the PTC heating element 9 produced as described above. Here, the initial characteristic before the PTC heating element is subjected to the thermal history is T 0 . T 1 indicates the resistance-temperature characteristic of the PTC heating element 9 when the resistance value changes in the direction of decreasing resistance value at the same temperature due to the thermal history. This is a change over time due to the heat history
The conductive powder such as carbon particles in the TC resistor 12 agglomerates or the resistance value becomes low due to the mixing of metal powder, etc., and the heat generation temperature becomes higher when compared with the initial characteristics before receiving the heat history. This is the case. The current value in this case is significantly larger than the initial value. Further, T 2 is a resistance temperature characteristic of the PTC heating element 9 when the resistance value changes in the direction of increasing resistance value at the same temperature due to the thermal history. This is because the PTC resistor 16 in the PTC resistor 16 has a high resistance value due to heat deterioration due to the change over time due to the heat history, and the heat generation temperature is low as compared with the initial characteristics before the heat history. In this case, PT
The current value of the C heating element is significantly smaller than that in the initial period.
In general, the long-term change of the resistance-temperature characteristic of the PTC heating element 9 shows the resistance-temperature characteristic of T 2 from T 1 to the initial characteristic of T 0 .
【００１３】図６において、本実施例の制御回路を示
す。ＰＴＣ発熱体９の両端は電源スイッチＳＷとスイッ
チ要素１８ａとを介して自動車用電源１４に電気的に接
続されている。また、前記回路には電流検出用標準抵抗
体１５が接続され、標準抵抗体１５の両端には電流検出
回路１６が接続され、自動車用電源１４の印加電圧と標
準抵抗体１５からＰＴＣ発熱体９に流れる電流を検出で
きるようになっている。電流検出回路１６にはここで検
出された電流値が、あらかじめ設定されている電流値の
範囲にあるかを判断する判定回路１７に電気的に接続さ
れている。この判定回路１７は、リレー作動回路１８に
電気的に接続され、さらにリレー作動回路１８には、自
動車用電源１４からスイッチＳＷを介してリレー作動回
路１８を作動させるための電圧変換を行うリレー電源回
路１９が電気的に接続されている。FIG. 6 shows a control circuit of this embodiment. Both ends of the PTC heating element 9 are electrically connected to the vehicle power supply 14 via the power switch SW and the switch element 18a. Further, a current detecting standard resistor 15 is connected to the circuit, and a current detecting circuit 16 is connected to both ends of the standard resistor 15, and the applied voltage of the automobile power supply 14 and the standard resistor 15 to the PTC heating element 9 are connected. It can detect the current flowing through. The current detection circuit 16 is electrically connected to a determination circuit 17 that determines whether the current value detected here is within a preset current value range. The determination circuit 17 is electrically connected to a relay operating circuit 18, and the relay operating circuit 18 includes a relay power source that performs voltage conversion for operating the relay operating circuit 18 from the vehicle power source 14 via the switch SW. The circuit 19 is electrically connected.
【００１４】判定回路１７は検出電流値の大きさをあら
かじめ設定していた範囲内か否かを判断し、判定結果に
よりリレー作動回路１８への制御信号を送る。判定回路
１７において、ＰＴＣ発熱体９に流れる電流値があらか
じめ設置していた電流値よりも大きい場合、反対に、判
定回路１７において、ＰＴＣ発熱体９に流れる電流値が
あらかじめ設置していた電流値よりも小さい場合は、Ｐ
ＴＣ抵抗体１２の抵抗温度特性が通電発熱による熱履歴
のため著しく変化したと考え、安全を図るために、判定
回路１７よりリレー作動回路１８に、スイッチ要素１８
ａをして自動車電源１４からＰＴＣ発熱体９への通電を
遮断する。The judgment circuit 17 judges whether or not the magnitude of the detected current value is within a preset range, and sends a control signal to the relay operation circuit 18 according to the judgment result. In the determination circuit 17, when the current value flowing in the PTC heating element 9 is larger than the preset current value, conversely, in the determination circuit 17, the current value flowing in the PTC heating element 9 is the preset current value. Less than, P
Considering that the resistance temperature characteristic of the TC resistor 12 has significantly changed due to the heat history due to heat generation by energization, for the sake of safety, the determination circuit 17 causes the relay operation circuit 18 to switch the switch element 18
Then, the power supply from the automobile power source 14 to the PTC heating element 9 is cut off.
【００１５】検出電流値が判定回路１７で一定の範囲で
あると判断された場合は、検出電流値の大きさに合わせ
て、一定時間周期でＯＮ−ＯＦＦされるような信号をリ
レー作動回路１８に与える。以上の制御で、ＰＴＣ発熱
体９の抵抗温度特性が図５のようにＴ1 からＴ2 へ変化
しても、ＰＴＣ発熱体９への通電時間が制御され発熱温
度が一定に保持され、ヒータユニット１は快適な温度を
維持できる。When the determination circuit 17 determines that the detected current value is within a certain range, the relay actuation circuit 18 outputs a signal that is turned on and off in a certain time period according to the magnitude of the detected current value. Give to. With the above control, even if the resistance-temperature characteristic of the PTC heating element 9 changes from T 1 to T 2 as shown in FIG. 5, the energization time to the PTC heating element 9 is controlled and the heating temperature is kept constant. Unit 1 can maintain a comfortable temperature.
【００１６】なお、ＰＴＣ発熱体９に流れる電流値を測
定する際に、ＰＴＣ抵抗体１２の抵抗温度係数が正で大
きいため、ＰＴＣ発熱体９が低温である場合、通電開始
時に流れる突入電流は非常に大きいので、電流検出回路
１６で検出する電流は通電開始後、一定時間経過してか
らの電流値を判定する。When measuring the value of the current flowing through the PTC heating element 9, since the temperature coefficient of resistance of the PTC resistor 12 is positive and large, when the PTC heating element 9 is at a low temperature, the rush current flowing at the start of energization is Since the current is very large, the current detected by the current detection circuit 16 is determined after the lapse of a certain time after the start of energization.
【００１７】以上の本発明の実施例によれば、ＰＴＣ発
熱体による即熱性があり、且つヒータユニットの快適な
発熱温度が持続し、ヒータユニット内のＰＴＣ発熱体が
異常発熱もしくは発熱しなくなれば、自動的にＰＴＣ発
熱体への通電を停止する。According to the above-described embodiment of the present invention, if the PTC heating element has an immediate heating property, the comfortable heating temperature of the heater unit is maintained, and the PTC heating element in the heater unit does not generate abnormal heat or does not generate heat. , The power supply to the PTC heating element is automatically stopped.
【００１８】[0018]
【発明の効果】以上のように、本発明のカーシートヒー
タによれば次の効果が得られる。 （１）ヒータユニットに正抵抗温度係数を有する発熱体
を使用しているので、従来の電気ヒータによる発熱性と
異なり、通電を始めてからの即熱性が向上する。 （２）発熱体の自己温度制御性から、表面温度を測定す
る温度センサや複雑な温度調節装置が不要である。また
ヒータユニット自体の表面温度は約５０〜５５℃程度で
安定するので、両座席周りの樹脂製品等を熱で損傷させ
ることがない。 （３）正抵抗温度係数を有する発熱体に流れる電流値を
測定して、その電流値の大きさから発熱体に通電する制
御としているので、長時間快適な温度で使用することが
できる。ＰＴＣ発熱体が異常発熱、または発熱しなくな
った場合には発熱体への通電を停止するので、安全性が
向上する。As described above, according to the car seat heater of the present invention, the following effects can be obtained. (1) Since the heater unit uses a heating element having a positive resistance temperature coefficient, the heating property is improved immediately after the start of energization, unlike the heating property of the conventional electric heater. (2) Due to the self-temperature controllability of the heating element, a temperature sensor for measuring the surface temperature and a complicated temperature adjusting device are not required. Moreover, since the surface temperature of the heater unit itself is stable at about 50 to 55 ° C., the resin products and the like around both seats are not damaged by heat. (3) The current value flowing through the heating element having a positive resistance temperature coefficient is measured and the heating element is energized based on the magnitude of the current value, so that it can be used for a long time at a comfortable temperature. When the PTC heating element abnormally heats up or stops generating heat, the power supply to the heating element is stopped, so that the safety is improved.
【図１】本発明の一実施例を示すカーシートヒータの斜
視図FIG. 1 is a perspective view of a car seat heater showing an embodiment of the present invention.
【図２】本発明の一実施例を示すヒータユニットの斜視
図FIG. 2 is a perspective view of a heater unit showing an embodiment of the present invention.
【図３】本発明の一実施例を示すヒータユニットの断面
図FIG. 3 is a sectional view of a heater unit showing an embodiment of the present invention.
【図４】本発明の一実施例を示すＰＴＣ発熱体の断面図FIG. 4 is a sectional view of a PTC heating element showing an embodiment of the present invention.
【図５】ＰＴＣ発熱体の抵抗温度特性図FIG. 5: Resistance-temperature characteristic diagram of PTC heating element
【図６】本発明の一実施例を示すＰＴＣ発熱体の通電制
御回路図FIG. 6 is a conduction control circuit diagram of a PTC heating element showing an embodiment of the present invention.
【図７】従来のヒータユニット用チュービングヒータの
正面図FIG. 7 is a front view of a conventional tubing heater for a heater unit.
１ ヒータユニット ２ コントローラ ９ ＰＴＣ発熱体 １１ 金属電極線 １２ ＰＴＣ抵抗体 １３ 電気絶縁体 1 Heater Unit 2 Controller 9 PTC Heating Element 11 Metal Electrode Wire 12 PTC Resistor 13 Electrical Insulator
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０５Ｂ 3/56 7913−3Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location H05B 3/56 7913-3K
Claims (2)
対の長尺の金属電極線と、前記電極線に結晶性高分子と
導電性微粉末からなる混合物を架橋処理および粉砕処理
した導電性粒子と、カーボン粒子を結晶性高分子組成物
に混合分散して形成された導電性組成物を主成分とする
正抵抗温度係数を有する抵抗体を被覆して一体に成形さ
れ、前記抵抗体を電気絶縁体で被覆してなるＰＴＣ発熱
体と、前記ＰＴＣ発熱体を保持するヒータユニットと、
通電時に前記ＰＴＣ発熱体に流れる電流を検出し、通電
制御するコントローラから構成されるカーシートヒー
タ。1. A pair of long metal electrode wires arranged parallel to each other at regular intervals and a conductive material obtained by subjecting the electrode wires to a crosslinking treatment and a pulverization treatment with a mixture of a crystalline polymer and a conductive fine powder. Conductive particles and carbon particles are mixed and dispersed in a crystalline polymer composition to cover a resistor having a positive resistance temperature coefficient containing a conductive composition as a main component and integrally molded to form a resistor. A PTC heating element obtained by coating the above with an electrical insulator, and a heater unit for holding the PTC heating element,
A car seat heater including a controller that detects a current flowing through the PTC heating element when energized and controls energization.
電制御するコントローラは、ＰＴＣ発熱体に流れる電流
の大きさを検出する回路と、この検出電流値がある一定
の範囲内であれば上記発熱体への通電を制御するように
し、一定範囲外であれば通電を停止する回路構成を備え
た請求項１記載のカーシートヒータ。2. A controller for detecting a current flowing through a PTC heating element and controlling energization includes a circuit for detecting the magnitude of a current flowing through the PTC heating element, and a detection circuit if the detected current value is within a certain range. 2. The car seat heater according to claim 1, further comprising a circuit configuration for controlling the energization of the heating element and stopping the energization when the temperature is out of a certain range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33023892A JPH06176857A (en) | 1992-12-10 | 1992-12-10 | Car sheet heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33023892A JPH06176857A (en) | 1992-12-10 | 1992-12-10 | Car sheet heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06176857A true JPH06176857A (en) | 1994-06-24 |
Family
ID=18230410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33023892A Pending JPH06176857A (en) | 1992-12-10 | 1992-12-10 | Car sheet heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06176857A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113446A (en) * | 1995-10-13 | 1997-05-02 | Horiba Ltd | Infrared gas analyzer |
| EP1199021A3 (en) * | 2000-10-20 | 2003-06-11 | Martin Schmänk | Scraper for removing ice from surfaces |
| JP2008213661A (en) * | 2007-03-05 | 2008-09-18 | Misato Kk | Vehicular planar heat generation body and vehicle heating device using this |
| JP2009066009A (en) * | 2007-09-10 | 2009-04-02 | Denso Corp | Air-conditioner for vehicle seat |
| JP2011036166A (en) * | 2009-08-10 | 2011-02-24 | Oshimo Sangyo Kk | Heat-transpiring device |
| KR101252283B1 (en) * | 2011-03-24 | 2013-04-08 | (주)피엔유에코에너지 | Car seat with SR heating element |
| US10375765B2 (en) | 2016-04-15 | 2019-08-06 | Hewlett-Packard Development Company, L.P. | 3-dimensional printed load cell parts |
| JP2022090650A (en) * | 2020-12-07 | 2022-06-17 | 深▲せん▼麦克韋爾科技有限公司 | Aerosol generating apparatus and heating element for the same |
| WO2024034577A1 (en) * | 2022-08-12 | 2024-02-15 | 日本発條株式会社 | Abnormality determination device, abnormality determination method, and abnormality determination program |
-
1992
- 1992-12-10 JP JP33023892A patent/JPH06176857A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113446A (en) * | 1995-10-13 | 1997-05-02 | Horiba Ltd | Infrared gas analyzer |
| EP1199021A3 (en) * | 2000-10-20 | 2003-06-11 | Martin Schmänk | Scraper for removing ice from surfaces |
| JP2008213661A (en) * | 2007-03-05 | 2008-09-18 | Misato Kk | Vehicular planar heat generation body and vehicle heating device using this |
| JP2009066009A (en) * | 2007-09-10 | 2009-04-02 | Denso Corp | Air-conditioner for vehicle seat |
| JP2011036166A (en) * | 2009-08-10 | 2011-02-24 | Oshimo Sangyo Kk | Heat-transpiring device |
| KR101252283B1 (en) * | 2011-03-24 | 2013-04-08 | (주)피엔유에코에너지 | Car seat with SR heating element |
| US10375765B2 (en) | 2016-04-15 | 2019-08-06 | Hewlett-Packard Development Company, L.P. | 3-dimensional printed load cell parts |
| US11064572B2 (en) | 2016-04-15 | 2021-07-13 | Hewlett-Packard Development Company, L.P. | 3-dimensional printed heater |
| JP2022090650A (en) * | 2020-12-07 | 2022-06-17 | 深▲せん▼麦克韋爾科技有限公司 | Aerosol generating apparatus and heating element for the same |
| WO2024034577A1 (en) * | 2022-08-12 | 2024-02-15 | 日本発條株式会社 | Abnormality determination device, abnormality determination method, and abnormality determination program |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0417097B1 (en) | Heating element and method for making such a heating element | |
| EP0125913B1 (en) | Flexible heating wire | |
| EP0873043A1 (en) | Heater wire with integral sensor wire and improved controller for same | |
| JPH06295780A (en) | Heating sheet | |
| JPH06176857A (en) | Car sheet heater | |
| CA1267927A (en) | Electric radiation heater assemblies | |
| JP2004055219A (en) | Seat heater | |
| JP2003332030A (en) | Car seat heater | |
| EP0160100B1 (en) | Ptc heating wire | |
| JP2007531203A (en) | Heating blanket | |
| JPH06178715A (en) | Water bed | |
| JP2003332027A (en) | Heating element | |
| JPS6134235B2 (en) | ||
| JPS6032958B2 (en) | heat sensitive body | |
| JP3977143B2 (en) | Floor heating system | |
| JPH0684587A (en) | Thermosensitive heater | |
| JP3796936B2 (en) | Wide area heating system | |
| JPH08145809A (en) | Composite temperature detector | |
| JPS6245672B2 (en) | ||
| JPS64619B2 (en) | ||
| JPH03216987A (en) | Control method for self-temperature control type heating element | |
| JPH0737679A (en) | Heater element with positive temperature coefficient of resistance | |
| JP2004214000A (en) | Vehicle-mounted temperature control device | |
| JPH03176981A (en) | Heating element with positive resistance temperature coefficient | |
| JPH03127480A (en) | Flat type heater |