JPS631424Y2 - - Google Patents
Info
- Publication number
- JPS631424Y2 JPS631424Y2 JP1569485U JP1569485U JPS631424Y2 JP S631424 Y2 JPS631424 Y2 JP S631424Y2 JP 1569485 U JP1569485 U JP 1569485U JP 1569485 U JP1569485 U JP 1569485U JP S631424 Y2 JPS631424 Y2 JP S631424Y2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- temperature
- liquid crystal
- temperature sensor
- rubber cap
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 9
- 210000002858 crystal cell Anatomy 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000004043 responsiveness Effects 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
〔技術分野〕
本考案は、面ヒーターなど温度分布が一様でな
いヒーターの温度制御を行うヒーター制御装置、
特にその温度センサーの取付構造に関するもので
ある。[Detailed description of the invention] [Technical field] The present invention provides a heater control device for controlling the temperature of a heater with uneven temperature distribution, such as a surface heater;
In particular, it relates to the mounting structure of the temperature sensor.
液晶表示素子は、使用温度が低いと応答性が悪
くなるので、ヒーターでの補助が必要となる。ヒ
ーターとしては、一般に面ヒーターを用い、低温
域ではオン、ある温度以上ではオフさせる。
Since the responsiveness of liquid crystal display elements deteriorates when the operating temperature is low, assistance with a heater is required. A surface heater is generally used as the heater, and is turned on at low temperatures and turned off at temperatures above a certain level.
そのため、第４図に示すように面ヒーター１を
制御部２を介して電源３に接続するとともに、面
ヒーター１に温度センサー（サーミスタ）４を取
付け、検出温度に応じて制御部２のリレー接点な
どをオン、オフさせるようにしている。その場合
の制御部２の回路構成は第５図のようになつてい
る。 Therefore, as shown in FIG. 4, the surface heater 1 is connected to the power source 3 via the control section 2, and a temperature sensor (thermistor) 4 is attached to the surface heater 1, and the relay contact of the control section 2 is connected according to the detected temperature. I am trying to turn things on and off. The circuit configuration of the control section 2 in this case is as shown in FIG.
即ち、温度センサー４を抵抗R1を直列に接続
しその接続点の電圧をコンパレータCPの（−）
入力端に、基準値設定用としての抵抗R2，R3の
直列回路の中間点の電圧をコンパレータCPの
（＋）入力端にそれぞれ加えて比較し、その結果
に応じてトランジスタＱのオン、オフを制御して
リレーRYの付勢、消勢を行い、リレー接点RYa
の閉路時に面ヒーター１に通電するようにしてい
る。 That is, the temperature sensor 4 is connected in series with the resistor R1 , and the voltage at the connection point is the (-) of the comparator CP.
The voltage at the midpoint of the series circuit of resistors R 2 and R 3 for setting the reference value is applied to the input terminal and compared to the (+) input terminal of the comparator CP, and depending on the result, the transistor Q is turned on or off. Controls off and energizes and de-energizes relay RY, relay contact RY a
When the circuit is closed, the surface heater 1 is energized.
ところで、面ヒーター１は温度分布が一様でな
く、中央部は端部より温度上昇が急であるので、
温度センサー４の取付位置が問題となる。面ヒー
ターの場合には中央部の温度を検出し、それに基
づいて温度制御を行えば正確な制御となるが、中
央部では表示に影響があるので、端部に温度セン
サー４を設置するのが普通であり、適確な温度制
御が困難となる。 However, the temperature distribution of the surface heater 1 is not uniform, and the temperature rises more rapidly in the center than at the ends.
The installation position of the temperature sensor 4 is an issue. In the case of a surface heater, accurate control is possible if the temperature at the center is detected and temperature control is performed based on that, but since the display is affected at the center, the temperature sensor 4 is usually installed at the edge, which makes accurate temperature control difficult.
本考案の目的は、温度センサーの取付位置が端
部であつてもヒーターによる温度上昇を素早く検
出することができるヒーター制御装置を提供する
ことにある。
An object of the present invention is to provide a heater control device that can quickly detect a temperature rise caused by the heater even if the temperature sensor is installed at the end.
本考案は、液晶表示素子の液晶セルの背面に介
在させたメツシユ・ヒーターの温度を温度センサ
ーで検出し、基準値と検出温度との比較結果に応
じてヒーターのオン、オフを制御するようにした
ヒーター制御装置において、前記液晶表示素子の
背面構成材であつて、光源が連設される拡散板の
端部に背面側が底となる凹部を形成し、その底面
に断熱材を布設するとともに、前記温度センサー
を熱伝導性の高いゴムキヤツプで包んで前記凹部
にゴムキヤツプが前記ヒーターに密着するように
設置したことを特徴とするものである。
This invention uses a temperature sensor to detect the temperature of the mesh heater placed on the back of the liquid crystal cell of the liquid crystal display element, and controls the heater to be turned on or off according to the comparison result between the reference value and the detected temperature. In the heater control device according to the present invention, a concave portion having a bottom on the back side is formed at the end of the diffuser plate, which is a back component of the liquid crystal display element and is connected to the light source, and a heat insulating material is laid on the bottom surface of the concave portion, and The temperature sensor is characterized in that the temperature sensor is wrapped in a rubber cap having high thermal conductivity, and the rubber cap is installed in the recess so as to be in close contact with the heater.
第１図〜第３図は本考案の一実施例を示すもの
で、１１は液晶セル、１２はメツシユ・ヒータ
ー、１３は透過・反射板、１４は拡散板、１５は
光源であり、前記拡散板１４の端部にヒーター温
度検出部１６を設けている。この検出部１６は、
第１図に示すように拡散板１４にその背面側が底
となる凹部１４Ａを形成してその底面に断熱材１
６Ａを布設し、その上に熱伝導性の高いゴムキヤ
ツプ１６Ｂで包んだ温度センサー（サーミスタ）
１６Ｃを設置した構造となつており、ゴムキヤツ
プ１６Ｂが前記ヒーター１２に密着するように前
記透過・反射板１３の一部に切欠き１３Ａを設け
ている。また、ゴムキヤツプ１６Ｂは、第３図に
示すようにセンサー１６Ｃを密着した状態で包む
とともに、ヒーター１２などに密着するよう扁平
体をなしている。
1 to 3 show an embodiment of the present invention, in which 11 is a liquid crystal cell, 12 is a mesh heater, 13 is a transmission/reflection plate, 14 is a diffusion plate, and 15 is a light source. A heater temperature detection section 16 is provided at the end of the plate 14. This detection section 16 is
As shown in FIG. 1, a recess 14A is formed in the diffuser plate 14, and a heat insulating material 14A is formed on the bottom surface of the recess 14A.
Temperature sensor (thermistor) with 6A installed and wrapped with a highly thermally conductive rubber cap 16B.
16C, and a cutout 13A is provided in a part of the transmission/reflection plate 13 so that the rubber cap 16B comes into close contact with the heater 12. Further, as shown in FIG. 3, the rubber cap 16B tightly wraps the sensor 16C and is flat so that it tightly contacts the heater 12 and the like.
上記のような構造とすると、ヒーター１２が通
電状態となつて温度が上昇した場合、熱が密着状
態にあるゴムキヤツプ１６Ｂを介して温度センサ
ー１６Ｃに速やかに伝わり、すぐれた応答性でヒ
ーター制御が行われる。 With the above structure, when the heater 12 is energized and the temperature rises, the heat is quickly transmitted to the temperature sensor 16C via the rubber cap 16B that is in close contact with the heater 12, and the heater can be controlled with excellent responsiveness. be exposed.
以上のように本考案によれば、熱伝導性の高い
ゴムキヤツプで温度センサーを包み、これをヒー
ターに密着するように背面の拡散板で支持したの
で、ヒーターの温度を素早く検出することがで
き、応答性の向上が図れて適確な制御が期待でき
る。しかも、取付位置が端部であるので、表示面
の有効利用が可能であるとともに、取付け作業や
コード処理が容易となる。
As described above, according to the present invention, the temperature sensor is wrapped in a highly thermally conductive rubber cap, and this is supported by the diffuser plate on the back so that it is in close contact with the heater, so the temperature of the heater can be detected quickly. Responsiveness can be improved and accurate control can be expected. Moreover, since the mounting position is at the end, the display surface can be used effectively, and the mounting work and code processing are facilitated.
第１図は本考案に係るヒーター制御装置の一実
施例を示す断面図、第２図は分解斜視図、第３図
はゴムキヤツプの斜視図、第４図及び第５図は従
来例を示すブロツク図及び回路図である。
１１……液晶セル、１２……メツシユ・ヒータ
ー、１３……透過・反射板、１３Ａ……切欠き、
１４……拡散板、１４Ａ……凹部、１５……光
源、１６……温度検出部、１６Ａ……断熱材、１
６Ｂ……ゴムキヤツプ、１６Ｃ……温度センサ
ー。
Fig. 1 is a sectional view showing one embodiment of the heater control device according to the present invention, Fig. 2 is an exploded perspective view, Fig. 3 is a perspective view of a rubber cap, and Figs. 4 and 5 are blocks showing a conventional example. They are a figure and a circuit diagram. 11...Liquid crystal cell, 12...Mesh heater, 13...Transmission/reflection plate, 13A...Notch,
14...Diffusion plate, 14A...Recess, 15...Light source, 16...Temperature detection section, 16A...Insulating material, 1
6B...Rubber cap, 16C...Temperature sensor.
Claims (1)
ツシユ・ヒーターの温度を温度センサーで検出
し、基準値と検出温度との比較結果に応じてヒー
ターのオン、オフを制御するようにしたヒーター
制御装置において、前記液晶表示素子の背面構成
材であつて、光源が連設される拡散板の端部に背
面側が底となる凹部を形成し、その底面に断熱材
を布設するとともに、前記温度センサーを熱伝導
性の高いゴムキヤツプで包んで前記凹部にゴムキ
ヤツプが前記ヒーターに密着するように設置した
ことを特徴とするヒーター制御装置。 A heater control device that uses a temperature sensor to detect the temperature of a mesh heater placed on the back of the liquid crystal cell of a liquid crystal display element, and controls the heater to be turned on or off according to the comparison result between a reference value and the detected temperature. In this method, a concave portion having a bottom on the back side is formed at the end of the diffuser plate, which is a back component of the liquid crystal display element and to which the light source is connected, and a heat insulating material is laid on the bottom surface of the concave portion, and the temperature sensor is placed on the bottom of the concave portion. A heater control device characterized in that the heater is wrapped in a highly thermally conductive rubber cap and installed in the recess so that the rubber cap is in close contact with the heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1569485U JPS631424Y2 (en) | 1985-02-06 | 1985-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1569485U JPS631424Y2 (en) | 1985-02-06 | 1985-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61132699U JPS61132699U (en) | 1986-08-19 |
| JPS631424Y2 true JPS631424Y2 (en) | 1988-01-14 |
Family
ID=30501770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1569485U Expired JPS631424Y2 (en) | 1985-02-06 | 1985-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS631424Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2589304Y2 (en) * | 1990-02-13 | 1999-01-27 | 株式会社 三洋物産 | Pachinko machine display device |
-
1985
- 1985-02-06 JP JP1569485U patent/JPS631424Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61132699U (en) | 1986-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1278809C (en) | Heater for use as either primary or auxiliary heat source and improvedcircuitry for controlling the heater | |
| EP3875928A1 (en) | Transparent dome for a pyranometer | |
| JPS631424Y2 (en) | ||
| US5999064A (en) | Heated temperature variable attenuator | |
| JPH0639345Y2 (en) | Semiconductor temperature detector | |
| JPH0351709Y2 (en) | ||
| JP2563600B2 (en) | Heating toilet seat | |
| JP2885661B2 (en) | microwave | |
| JPS62238429A (en) | Temperature sensor | |
| JPS641623Y2 (en) | ||
| JPS5942605Y2 (en) | Freeze prevention device for diaphragm chambers in instantaneous gas water heaters, etc. | |
| JP3440691B2 (en) | Power element overheat detection device | |
| JPS5821511Y2 (en) | Connection terminal device with temperature sensing element | |
| JPH0289Y2 (en) | ||
| JPH0338662Y2 (en) | ||
| JP2002039983A (en) | Humidity sensor | |
| JPH0354660Y2 (en) | ||
| JP2587714Y2 (en) | Thermistor temperature detector | |
| JPS6111623Y2 (en) | ||
| JPH083437B2 (en) | Continuous level gauge | |
| JPS60160926A (en) | Heat-sensitive apparatus | |
| SU1179295A1 (en) | Device for heating animal husbandry rooms | |
| JPH06103104B2 (en) | Microwave oven with piezoelectric element sensor | |
| KR950005364Y1 (en) | Electric rice cooker | |
| JPS6017714Y2 (en) | Temperature control device for photoelectric conversion elements |