JPS6047932A - Temperature sensor - Google Patents
Temperature sensorInfo
- Publication number
- JPS6047932A JPS6047932A JP15585083A JP15585083A JPS6047932A JP S6047932 A JPS6047932 A JP S6047932A JP 15585083 A JP15585083 A JP 15585083A JP 15585083 A JP15585083 A JP 15585083A JP S6047932 A JPS6047932 A JP S6047932A
- Authority
- JP
- Japan
- Prior art keywords
- contact plate
- support
- temperature
- heat
- sensing element
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、複写機等の定着ローラーの温度制御等に利用
される温度センサに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a temperature sensor used for controlling the temperature of a fixing roller in a copying machine or the like.
従来例の構成とその問題点
近年の複写機業界は、複写速度の発達とともに、紙へト
ナーを定着させるローラー温度の高精度制御化が必要と
なシ、従来から高精度、高応答性で、かつ、堅牢な温度
センサがめられている。Conventional configurations and their problems In recent years, in the copier industry, with the development of copying speed, there has been a need for highly accurate control of the temperature of the rollers that fix toner on paper. Moreover, a robust temperature sensor is required.
以下、図面を参照しながら、上述したような従来の温度
センサについて説明全行う。Hereinafter, the conventional temperature sensor as described above will be fully explained with reference to the drawings.
第１図は従来の温度センサの取り付けられた状態の全体
図を示すものである。第２図Ａ、Ｂはその側面図と正面
図を示し、第３図は第２図Ｂの正面図のＡ−Ａ’断面の
状態を示すものである。 １は被温度測定物８から、温
度検知素子９を機械的保護をしながら、熱の受授を行う
接触板である。FIG. 1 shows an overall view of a conventional temperature sensor installed. FIGS. 2A and 2B show a side view and a front view thereof, and FIG. 3 shows a cross section taken along line AA' in the front view of FIG. 2B. Reference numeral 1 denotes a contact plate that receives and receives heat from the temperature measurement object 8 while mechanically protecting the temperature detection element 9 .
２は上記接触板１を保持する支持体である。３は接触板
１と支持体２を固着する鋲である。４は温度検知素子９
の電気量変換を入出力させるだめの心線である。５はビ
ン６を介して支４ｉ１体２に取りつけられた接触板１と
、被温度′６１１１定物８の位１〆イを保つための固定
ベースである。７は接触板１を常に被温度測定物８に接
するように押しつけ力を持たせたスプリングである。１
０は温度検知素子９を、接触板１に固着させるための接
着剤である。Reference numeral 2 denotes a support body that holds the above-mentioned contact plate 1. Reference numeral 3 denotes a stud for fixing the contact plate 1 and the support body 2 together. 4 is a temperature sensing element 9
This is the core wire for inputting and outputting electrical quantity conversion. Reference numeral 5 denotes a fixed base for maintaining the contact plate 1 attached to the support 4i1 body 2 via the bottle 6 and the constant temperature 8. Reference numeral 7 denotes a spring that has a pressing force to keep the contact plate 1 in constant contact with the object 8 to be temperature measured. 1
0 is an adhesive for fixing the temperature sensing element 9 to the contact plate 1.
以上のように構成された温度センサについて、以下その
動作について説明する。The operation of the temperature sensor configured as above will be described below.
被温度測定物８の温度変化を、接触板１を介して接着剤
１ｏで接触板１に固着させた温度検知素子９で感じとり
、導線４全通じて電気量の変換全行って測定を行うもの
である。捷だ、接触板１は支持体２に鋲３で固定し、支
持体２の一端は固定ベース６の一端にビン６を介して回
動可能に保持され、さらに、バネ７はビン６を支点にし
て、固定ベース５に対して支持体２を外側へ開くように
伺勢するように取りつけ、接触板１と、被温度測定物８
とが常に接触できるように構成されたものである。The temperature change of the object to be measured 8 is sensed by the temperature detection element 9 fixed to the contact plate 1 via the contact plate 1 with an adhesive 1o, and the measurement is performed by converting the electrical quantity through all the conductor wires 4. It is. The contact plate 1 is fixed to a support 2 with rivets 3, one end of the support 2 is rotatably held at one end of a fixed base 6 via a pin 6, and a spring 7 supports the pin 6 as a fulcrum. Then, the support body 2 is attached to the fixed base 5 so as to open outward, and the contact plate 1 and the temperature measurement object 8 are attached.
It is constructed so that the two can be in constant contact with each other.
しかしながら、上記のような構成では、被温度測定物８
から受熱した熱が支持体２への熱伝導による放熱を防ぐ
ため、接触板１の両端を細くして支持体２に取りつけな
ければならず、大きな外力に列して弱い構造となってい
た。また、外部へ信号を引出すだめの導線４も、直接外
へ導ひき出されているために、強度全高めるのに比較的
太いものを使用する必要があり、導線４からの放熱が大
きく、さら・に、温度検知素子９の周囲も開放された状
態となっており、気体の対流による放熱が高く、温度検
知素子９の被温度測定物８の温度差が大きく、正確な温
度測定が難しい。また、温度検知素子９の周囲が開放状
態であるので、電気絶縁性、あるいは、機械的強度から
の保護のために、接触板１と温度検知素子９を固着させ
る接着剤１Ｑは大量に塗布する必要があり、温度検知部
の熱容量を小さくすることが困難であり、被温度測定物
８からの熱を多量に必要とし、被温度測定物８への熱影
響が大であるっ
発明の目的
本発明は上記欠点に鑑み、温度検知素子の保護と、構造
物の強度を高め、外部導線をより強固なものとし、さら
には、熱伝導性と気体の対流による放熱を低くして、堅
固で、測定精度を高めた温度センサを提供することを目
的とするものである。However, in the above configuration, the temperature measured object 8
In order to prevent the heat received from the contact plate 1 from being dissipated by heat conduction to the support 2, both ends of the contact plate 1 must be made thin and attached to the support 2, resulting in a weak structure that can withstand large external forces. In addition, since the conductor wire 4 that outputs the signal to the outside is directly led out, it is necessary to use a relatively thick wire to increase the strength, and the heat dissipation from the conductor wire 4 is large. - Also, the area around the temperature sensing element 9 is open, so heat radiation due to gas convection is high, and the temperature difference between the object 8 to be measured by the temperature sensing element 9 is large, making accurate temperature measurement difficult. Furthermore, since the area around the temperature sensing element 9 is open, a large amount of adhesive 1Q for fixing the contact plate 1 and the temperature sensing element 9 is applied for electrical insulation or protection from mechanical strength. Therefore, it is difficult to reduce the heat capacity of the temperature detection part, and a large amount of heat is required from the object to be measured 8, and the thermal influence on the object to be measured 8 is large.Objective of the Invention In view of the above-mentioned drawbacks, the present invention protects the temperature sensing element, increases the strength of the structure, makes the external conductor stronger, and furthermore, reduces heat conductivity and heat dissipation due to gas convection, making it strong and solid. The purpose of this invention is to provide a temperature sensor with improved measurement accuracy.
発明の構成
この目的を達成するために本発明の温度センサは、被温
度測定物に接する部分を平行延長した突出部分を設けた
接触板と、この接触板と支持体の間に絶縁断熱体を設け
、上記支持体と絶縁断熱体で包み込むように温度検知素
子を上記接触板に取付け、さらに支持体と絶縁断熱体の
間に金属フレームを設け、この金属フレームに温度検知
素子の端子を接続するとともに外部引出し用としての導
線を接続する構成としたものであるっ
実施例の説明
以下、本発明の一実施例について図面を参照しながら説
明する。Structure of the Invention In order to achieve this object, the temperature sensor of the present invention includes a contact plate provided with a protruding portion extending parallel to the portion in contact with the object to be measured, and an insulating heat insulator between the contact plate and the support. A temperature sensing element is attached to the contact plate so as to be surrounded by the support and the insulation and heat insulation, and a metal frame is provided between the support and the insulation and insulation, and the terminal of the temperature sensing element is connected to this metal frame. DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第４図Ａ−Ｅは本発明における温度センサの組立図を示
し、第５図は温度検知部の組立構成で、第６図は温度検
知部の断面図を表１っすものである０１１は被温度測定
物１８から温度検知素子１９を機械的保護をしながら、
熱の受授を行う接触板、１２は接触板１１と、絶縁断熱
体２３を保持する支持体、１３は接触板１１と絶縁断熱
体２３を支持体１２へ固着する鋲、１４は温度検知素子
１９の電気変換量ｆ、 Ｉ）−ド端子２１と、金属フレ
ーム２２を介して入出力させる導線、１６はピン１６を
介して第６図の温度検知部と被温度測定部１８との位置
を保つだめの固定ベース、１６は支持体１２と固定ベー
ス１６全回動可能に接続するピン、１７は支持体１２に
取シ伺けられた接触板１１を被温度測定物１８に押し伺
はカを得るだめのバネ、１８は測定対象物である被温度
測定物、１９は温度変化を感じとる温度検知素子、２０
は温度検知素子１９を接触板１１に固着する接着剤、２
１は温度検知素子１９の変化全電気的に導くリード線、
２２は導線１４とリード線２１を中継接続を行う金属フ
レーム、２３は温度検知素子１９とリード線２１と金属
フレーム２２と導線１４の一鼓１；全電気的絶縁し、か
つ、温度検知素子１９に発生した熱を同図に放熱しない
ようにするだめの絶縁断熱体である。4A to 4E show assembly diagrams of the temperature sensor according to the present invention, FIG. 5 shows the assembly configuration of the temperature detection section, and FIG. 6 shows a sectional view of the temperature detection section. While mechanically protecting the temperature sensing element 19 from the temperature measurement object 18,
A contact plate that receives and receives heat; 12 is a support that holds the contact plate 11 and the insulating and heat-insulating body 23; 13 is a stud that fixes the contact plate 11 and the insulating and heat-insulating body 23 to the support 12; 14 is a temperature sensing element The electrical conversion amount f, I) at 19 is input/output through the lead terminal 21 and the metal frame 22, and the conductor 16 is connected to the position of the temperature sensing part and the temperature measuring part 18 in FIG. 6 through the pin 16. 16 is a pin that connects the support 12 and the fixed base 16 so that the fixed base 16 can rotate fully; 17 is a pin that connects the support 12 to the object to be measured 18; 18 is a temperature measurement object, 19 is a temperature detection element that senses temperature changes, 20
2 is an adhesive for fixing the temperature sensing element 19 to the contact plate 11;
1 is a lead wire that electrically conducts changes in the temperature detection element 19;
22 is a metal frame that connects the conductor 14 and the lead wire 21 via relay; 23 is a temperature detection element 19, the lead wire 21, the metal frame 22, and the conductor 14; fully electrically insulated; and the temperature detection element 19; This is an insulating and heat insulating material that prevents the heat generated by the heat from being radiated to the same area.
以上のように構成された温度センサについて、以下その
動作全説明する。The entire operation of the temperature sensor configured as described above will be explained below.
まず、動または静なる被温度測定物１８の熱変化を、接
触板１１を通じ接着剤２０で接触板１１に固着させた温
度検知素子１９に伝えるっこのとき、より安定した温度
変化を捕えるために、接触板１１には被温度測定物１８
に平行に長くした突出部分を設けて受熱分布を良くする
とともに、被温度測定物１８との平行的な機械振動に対
しても安定した接触を得るようにしたものである。また
接触板１１は絶縁断熱体２３を介して支持体１２へ、鋲
１３により保持されており、安定した形で取り付けられ
ており、被温度測定物１８との接触部以外を最小限の大
きさにしても機械的強度が得られ、かつ、絶縁断熱体２
３により、支持体１２への熱伝導による放熱がほとんど
なく、さらに、温度検知素子１９を接触板１１と絶縁断
熱体２３と支持体１２で包み込むような構造体となって
おり、気体の７］流による放熱をも少なくし、安定、か
つ、正確な温度測定ができるとともに、その封止構造か
ら外周への機械的強度をも高めることができるうさらに
、温度検知素子１９の温度検知による電気的変換の入出
力を外部へ導ひくのに、温度検知素子１９に取り付けら
れたリード線２１を支持体１２に取り付けられた金属フ
レーム２２に接合させ、導線１４と金属フレーム２２と
を接合して外部へ導線１４を通じて引き出した構造であ
る。この構造にすることにより、温度検知素子１９から
リード線２１を伝っての熱伝導の影響を低くするため、
リード線２１を極細線化しても、導線１４の外力からの
影響がほとんど無く、堅固で４１す定精度を高めた温度
センサとすることができ以上のように本発明は、接触板
の受熱分布と接触状態の安定性を得た構造であり、かつ
絶縁断熱体を用いたことによる、熱伝導および気体のｌ
ｊ流による熱放散を低くすることができ、さらに、温度
検知部周辺を構成体で封止しているため、機械的強度と
、完全な電気絶縁性を有することができ、丑だ、外部へ
の電気的入出力を行うのに、温度検知部内へ金属フレー
ム゛を設けたことによって、導体の外力による温度検知
素子とリード線を保護することができ、高い測定精度と
、強固な温肛センザを得るととができ、その工業的効果
は大な企゛ものがある。First, in order to detect a more stable temperature change when transmitting a dynamic or static thermal change of the temperature measurement object 18 through the contact plate 11 to the temperature sensing element 19 fixed to the contact plate 11 with an adhesive 20. , the temperature measurement object 18 is placed on the contact plate 11.
A protruding portion that is elongated in parallel with is provided to improve the distribution of heat reception and to obtain stable contact with the object to be measured 18 even against parallel mechanical vibrations. The contact plate 11 is held by rivets 13 to the support 12 via an insulating and heat insulating body 23, and is attached in a stable manner. However, mechanical strength can be obtained even if the insulating and heat insulating body 2
3, there is almost no heat dissipation due to thermal conduction to the support 12, and the structure is such that the temperature sensing element 19 is wrapped by the contact plate 11, the insulating and heat insulating body 23, and the support 12. It is possible to reduce the heat dissipation caused by the current, allowing stable and accurate temperature measurement.In addition, it is possible to increase the mechanical strength from the sealing structure to the outer periphery.In addition, the electrical In order to conduct the input and output of the conversion to the outside, the lead wire 21 attached to the temperature sensing element 19 is connected to the metal frame 22 attached to the support 12, and the conductor wire 14 and the metal frame 22 are connected to the outside. This structure is drawn out through a conductive wire 14. By adopting this structure, in order to reduce the influence of heat conduction from the temperature sensing element 19 to the lead wire 21,
Even if the lead wire 21 is made into an ultra-thin wire, there is almost no influence from the external force on the conductor wire 14, and a temperature sensor that is robust and has improved accuracy can be obtained.As described above, the present invention has the following advantages: It has a structure that achieves stability in the contact state with
It is possible to reduce heat dissipation due to current, and since the area around the temperature detection part is sealed with a structure, it has mechanical strength and complete electrical insulation, making it possible to prevent leakage to the outside. By installing a metal frame inside the temperature sensing part for electrical input/output, it is possible to protect the temperature sensing element and lead wire from external force of the conductor, resulting in high measurement accuracy and a strong anal temperature sensor. It can be used to produce acetic acid, and its industrial effects are of great significance.
第１図は従来の温度センサの使用状態における斜視図、
第２図Ａ、Ｂは第１図の側面図と正面図、第３図は第２
図Ｂの正面図のＡ −Ａ’断面図、 第および下面図、
第５図は温度検知部の分解斜視図、第６図は温度検知部
の断面図であるっ
１１・・・・・接触板、１２・・山・支持体、１３・・
・・・鋲、１４・・・・・・導線、１６・・・・・・固
定ベース、１６・・・・ピン、１７・・・・・・バネ、
１８・旧・・被温度測定物、１９・・・・・温度検知素
子、２ｏ・川・接着剤、２１・・・・・・リード線、２
２・・・・・・金属フレーム、２３・・・・・・絶縁断
熱体、
代理人の氏名 弁理士 中 尾 敏 男 はが１名第１
図 ４
＼
第２図
１イ
第 ５ 図Figure 1 is a perspective view of a conventional temperature sensor in use;
Figures 2A and B are side and front views of Figure 1, Figure 3 is the
A-A' sectional view of the front view of Figure B, the second and bottom views,
Fig. 5 is an exploded perspective view of the temperature detection section, and Fig. 6 is a sectional view of the temperature detection section.
...Tack, 14...Conductor, 16...Fixed base, 16...Pin, 17...Spring,
18.Old...Temperature measurement object, 19..Temperature detection element, 2o.River, Adhesive, 21..Lead wire, 2
2...Metal frame, 23...Insulation and heat insulation, Name of agent: Patent attorney Toshio Nakao Haga 1 person No. 1
Figure 4 ＼ Figure 2 1a Figure 5
Claims (1)
した突出部分を設け、この接触板と支持体との間に絶縁
断熱体を設け、この支持体と絶縁断熱体で包み込むよう
に温度検知素子を上記接触板に取付け、さらに支持体と
絶縁断熱体の間に金属フレームを設け、この金属フレー
ムに温度検知素子の端子を接続するとともに外部引出し
用としての導線を接続してなる温度センサっA contact plate in contact with the temperature measurement object is provided with a protruding portion extending parallel to the temperature measurement object, an insulating and heat insulating body is provided between the contact plate and the support, and the temperature is A temperature sensor in which a sensing element is attached to the contact plate, a metal frame is provided between the support and the insulator, and a terminal of the temperature sensing element is connected to this metal frame, as well as a conductor for external extraction. Wow
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15585083A JPS6047932A (en) | 1983-08-25 | 1983-08-25 | Temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15585083A JPS6047932A (en) | 1983-08-25 | 1983-08-25 | Temperature sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6047932A true JPS6047932A (en) | 1985-03-15 |
| JPH0117529B2 JPH0117529B2 (en) | 1989-03-30 |
Family
ID=15614864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15585083A Granted JPS6047932A (en) | 1983-08-25 | 1983-08-25 | Temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047932A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672968A2 (en) * | 1994-03-14 | 1995-09-20 | Canon Kabushiki Kaisha | Image heating apparatus and connector therefor |
| NL1005002C2 (en) * | 1997-01-14 | 1998-07-15 | Rodax N V | Device for measuring a temperature. |
| US8041260B2 (en) * | 2005-12-28 | 2011-10-18 | Kyocera Mita Corporation | Member mounting arrangement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4718733B2 (en) * | 2001-09-12 | 2011-07-06 | 安立計器株式会社 | Contact thermometer |
-
1983
- 1983-08-25 JP JP15585083A patent/JPS6047932A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672968A2 (en) * | 1994-03-14 | 1995-09-20 | Canon Kabushiki Kaisha | Image heating apparatus and connector therefor |
| EP0672968A3 (en) * | 1994-03-14 | 1996-07-10 | Canon Kk | Image heating apparatus and connector therefor. |
| US6023047A (en) * | 1994-03-14 | 2000-02-08 | Canon Kabushiki Kaisha | Image heating apparatus and connector with contact member covering heater |
| NL1005002C2 (en) * | 1997-01-14 | 1998-07-15 | Rodax N V | Device for measuring a temperature. |
| EP0857956A1 (en) * | 1997-01-14 | 1998-08-12 | Rodax N.V. | Device for measuring a temperature |
| US8041260B2 (en) * | 2005-12-28 | 2011-10-18 | Kyocera Mita Corporation | Member mounting arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0117529B2 (en) | 1989-03-30 |
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