JPS6234268Y2 - - Google Patents
Info
- Publication number
- JPS6234268Y2 JPS6234268Y2 JP17020581U JP17020581U JPS6234268Y2 JP S6234268 Y2 JPS6234268 Y2 JP S6234268Y2 JP 17020581 U JP17020581 U JP 17020581U JP 17020581 U JP17020581 U JP 17020581U JP S6234268 Y2 JPS6234268 Y2 JP S6234268Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- fixing roller
- temperature sensor
- metal
- attached
- 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
- 239000002184 metal Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000011324 bead Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
【考案の詳細な説明】
本考案は回転体等の被測温体に接触させること
なく、該測温体の表面温度を検出するための温度
センサに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temperature sensor for detecting the surface temperature of a temperature measuring object such as a rotating body without contacting the temperature measuring object.
従来、コピー機における定着ローラの温度制御
を行うための温度センサとしては、定着ローラに
サーミスタ等の感温素子を直接あるいは間接的に
接触させて表面温度を検出していた。そのために
定着ローラに傷が付き易く、また定着ローラと接
触している部分での摩耗が大きく端用年数も短か
くなると共に間接的に温度検出を行う方法では、
定着ローラに接触する感温素子保護部材に熱が奪
われ、従つて熱応答性が悪い等の欠点を有するも
のであつた。 Conventionally, in order to control the temperature of the fixing roller in a copy machine, a temperature sensor such as a thermistor is directly or indirectly brought into contact with the fixing roller to detect the surface temperature. As a result, the fixing roller is easily scratched, and the part in contact with the fixing roller is subject to large wear, shortening the service life. In addition, the indirect method of detecting the temperature has the following problems:
The heat is absorbed by the temperature-sensing element protective member which is in contact with the fixing roller, and therefore the thermal response is poor.
そこで近年、絶縁体によりベースに金属フレー
ムを平行に取付けると共に該金属フレームの先端
にサーミスタ等の感温素子を取付けたものが開発
されている。これは定着ローラに対して感温素子
が適宜間隔を介して配置されるようにベースを固
定するものであり、非接触式なので定着ローラに
傷を付けることがないこと、また金属フレームも
定着ローラに接触しないので、熱が該金属フレー
ムに直接的に逃げないことなどで、従来のものよ
り優れている。 Therefore, in recent years, a device has been developed in which a metal frame is attached in parallel to a base using an insulator, and a temperature sensing element such as a thermistor is attached to the tip of the metal frame. This fixes the base so that the temperature-sensitive element is placed at an appropriate distance from the fixing roller, and since it is a non-contact type, it does not damage the fixing roller. It is superior to conventional metal frames in that it does not come in contact with the metal frame, so heat does not escape directly to the metal frame.
しかしこの温度センサにあつても、金属フレー
ムの面積が大きいので、定着ローラの熱が相当量
金属フレームに吸収され、該金属フレームの熱に
よつて感温素子の検出温度が影響を受け易い等の
欠点があると共に金属フレームであることからし
て定着ローラに対する取付け位置が制限される外
コストも高くなる等の欠点があつた。 However, even with this temperature sensor, since the metal frame has a large area, a considerable amount of the heat from the fixing roller is absorbed by the metal frame, and the temperature detected by the temperature sensing element is likely to be affected by the heat of the metal frame. In addition, since it is a metal frame, the mounting position relative to the fixing roller is limited, and the cost is also high.
本考案は叙上の点に着目して成されたもので、
その目的とするところは、感温素子を取付けるた
めの物体が金属線であることからして、定着ロー
ラの熱による悪影響が少なく、感温素子の取付け
が非常に簡単に行える温度センサを提供するにあ
る。 This idea was created by focusing on the points mentioned above.
The purpose of this is to provide a temperature sensor in which the temperature-sensitive element can be attached very easily, with less adverse effects from the heat of the fixing roller, since the object on which the temperature-sensitive element is attached is a metal wire. It is in.
本考案の他の目的とするところは、金属線に段
差を設けることにより、定着ローラに対する取付
け位置を熱対流の乱れの少ない側方に取付けるこ
とができ、定着ローラ表面に沿つた乱れの少ない
熱の流れを検出できて正確なる温度測定が可能な
温度センサを提供するにある。 Another object of the present invention is that by providing a step in the metal wire, it can be attached to the side of the fixing roller where there is less turbulence in heat convection. An object of the present invention is to provide a temperature sensor that can detect the flow of water and measure temperature accurately.
次に本考案の一実施例を図面と共に説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
１は合成樹脂製等の絶縁材による支持台にし
て、２個の長孔１ａが形成されている。この長孔
１ａはコピー機本体側の枠板に固着された支持杆
に対し、定着ローラＡとの間隙を調整するための
ものである。２，３は略Ｕ字状に形成された大小
の金属線にして、その基部２ａ，３ａが上記支持
台１の一側にモールドにて固定されている。そし
て各金属線２，３の相対向する一端は、支持台１
の上面より突出され端子線２ｂ，３ｂとなつてい
る。また金属線２，３の中心部分２ｃ，３ｃは前
後方向にずれていて段差が形成されている。４は
ビードサーミスタ等の感温素子にして、そのリー
ド線が上記金属線２，３の中心部分２ｃ，３ｃに
半田付け等によつて固定されている。 Reference numeral 1 denotes a support base made of an insulating material such as synthetic resin, and has two elongated holes 1a formed therein. This elongated hole 1a is for adjusting the gap between the fixing roller A and the support rod fixed to the frame plate of the main body of the copying machine. Reference numerals 2 and 3 are metal wires of large and small shapes formed in a substantially U-shape, and their bases 2a and 3a are fixed to one side of the support base 1 by molding. One end of each of the metal wires 2 and 3 facing each other is connected to the support base 1.
The terminal wires 2b and 3b protrude from the upper surface of the terminal. Further, the center portions 2c, 3c of the metal wires 2, 3 are shifted in the front-rear direction to form a step. Reference numeral 4 designates a temperature sensing element such as a bead thermistor, and its lead wire is fixed to the center portions 2c, 3c of the metal wires 2, 3 by soldering or the like.
以上のように構成された温度センサは、第３図
に示すように定着ローラＡの上部よりやや下側の
位置になるように設置される。温度センサの金属
線２，３は上記したように前後方向に段差を有す
るように形成されているため取付けた感温素子４
は略定着ローラＡの曲面と平行になる。このよう
に温度センサを取付けると、温度センサ本体を第
３図で左右に移動させるだけで感温素子４と定着
ローラＡの表面との距離△ｌを容易に調整するこ
とができる。温度センサを第３図に示すような位
置に取付けることは、定着ローラＡの真上に取付
ける場合と比較し熱の対流の乱れが少ないため温
度の正確な検出が可能となる。 The temperature sensor configured as described above is installed at a position slightly below the top of the fixing roller A, as shown in FIG. As mentioned above, the metal wires 2 and 3 of the temperature sensor are formed to have a step in the front and back direction, so the attached temperature sensing element 4
is substantially parallel to the curved surface of the fixing roller A. When the temperature sensor is installed in this manner, the distance Δl between the temperature sensing element 4 and the surface of the fixing roller A can be easily adjusted by simply moving the temperature sensor body left and right in FIG. When the temperature sensor is installed in the position shown in FIG. 3, as compared with the case where it is installed directly above the fixing roller A, there is less disturbance in heat convection, so that accurate temperature detection is possible.
なお本実施例にあつて金属線２，３は銅、ステ
ンレス鋼等が適すると共に線に代えてパイプや幅
ぜまの板体であつても良い。 In this embodiment, the metal wires 2 and 3 are suitably made of copper, stainless steel, etc., and may also be a pipe or a plate with a width gap instead of the wires.
また端子線２ｂ，３ｂは金属線２，３より延長
しただけのものに限定されることなく、基部２
ａ，３ａにリード線を接続したものであつても良
い。 Furthermore, the terminal wires 2b and 3b are not limited to those that simply extend from the metal wires 2 and 3;
It is also possible to connect lead wires to a and 3a.
本考案は上記したように、支持台に略Ｕ字状の
２本の金属線を上下２段に取付けると共に該金属
線間に感温素子を取付け、定着ローラ等の被測温
体に非接触で測温でき、従つて被測温体に傷を付
けたりすることがないと共に感温素子が取付けら
れている部材が金属線であることにより熱容量が
小さく、ために金属線により熱影響が小さく正確
に測温できるものである。 As mentioned above, the present invention involves attaching two approximately U-shaped metal wires to the support stand in two stages, upper and lower, and installing a temperature sensing element between the metal wires so as not to make contact with the object to be measured, such as the fixing roller. The temperature can be measured with a metal wire, which does not damage the object to be measured, and because the member to which the temperature sensing element is attached is a metal wire, the heat capacity is small, so the metal wire has a small thermal effect. It can measure temperature accurately.
また金属線を前後方向に段差を設けたことによ
り、被測温体の側面に配置しても感温素子は被測
温体である定着ローラに対し平行状態となり、従
つて熱の対流の乱れが少ない場所で正確な温度検
出ができる等の効果を有するものである。 In addition, by providing a step in the front and back direction of the metal wire, the temperature-sensing element is parallel to the fixing roller, which is the temperature-measuring object, even if it is placed on the side of the temperature-measuring object, which prevents disturbances in heat convection. This has the advantage of being able to accurately detect temperature in places where there is little temperature.
図は本考案に係る温度センサの一実施例を示
し、第１図は斜視図、第２図は平面図、第３図は
使用状態の側面図である。
１……支持台、２，３……金属線、４……感温
素子。
The drawings show an embodiment of the temperature sensor according to the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a plan view, and Fig. 3 is a side view of the temperature sensor in use. 1... Support stand, 2, 3... Metal wire, 4... Temperature sensing element.
Claims (1)
に取付けられた一対の略Ｕ字状の金属線と、該
金属線間にリード線が取付けられたビードサー
ミスタ等の感温素子とより成る温度センサ。 (2) 上記金属線が段差を設けて支持体に取付けら
れていることを特徴とする実用新案登録請求の
範囲第１項記載の温度センサ。[Claims for Utility Model Registration] (1) A support made of an insulator, a pair of substantially U-shaped metal wires attached vertically to the support, and a lead wire attached between the metal wires. A temperature sensor consisting of a temperature sensing element such as a bead thermistor. (2) The temperature sensor according to claim 1, wherein the metal wire is attached to a support with a step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17020581U JPS5876130U (en) | 1981-11-17 | 1981-11-17 | temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17020581U JPS5876130U (en) | 1981-11-17 | 1981-11-17 | temperature sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5876130U JPS5876130U (en) | 1983-05-23 |
| JPS6234268Y2 true JPS6234268Y2 (en) | 1987-09-01 |
Family
ID=29962167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17020581U Granted JPS5876130U (en) | 1981-11-17 | 1981-11-17 | temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5876130U (en) |
-
1981
- 1981-11-17 JP JP17020581U patent/JPS5876130U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5876130U (en) | 1983-05-23 |
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