JPH044236U - - Google Patents
Info
- Publication number
- JPH044236U JPH044236U JP4462290U JP4462290U JPH044236U JP H044236 U JPH044236 U JP H044236U JP 4462290 U JP4462290 U JP 4462290U JP 4462290 U JP4462290 U JP 4462290U JP H044236 U JPH044236 U JP H044236U
- Authority
- JP
- Japan
- Prior art keywords
- heat generating
- ceramic
- heating
- resistance element
- coating layer
- 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
- Measuring Volume Flow (AREA)
Description
第１図は本考案の一実施例よりなる流量検出用
発熱抵抗素子の断面図、第２図は第１図の製造工
程の概略図、第３図は本考案による発熱抵抗素子
と従来品の応答比較を示す図、第４図は発熱抵抗
素子のリード線に逃げる熱量を示した図である。
１……発熱部被覆層、２……非発熱部被覆層、
３……コートガラス、４……白金線、５……リー
ド線、６……Ｍｏ芯線、７……マスク材、８……
支柱。
Fig. 1 is a sectional view of a heating resistor element for flow rate detection according to an embodiment of the present invention, Fig. 2 is a schematic diagram of the manufacturing process of Fig. 1, and Fig. 3 is a cross-sectional view of a heating resistor element according to the present invention and a conventional product. FIG. 4, which is a diagram showing response comparison, is a diagram showing the amount of heat escaping to the lead wire of the heating resistor element. 1... Heat generating part coating layer, 2... Non-heat generating part coating layer,
3... Coated glass, 4... Platinum wire, 5... Lead wire, 6... Mo core wire, 7... Mask material, 8...
Prop.
Claims (1)
れたリード線と、前記リード線と該熱線との接続
部をセラミツクス又は、セラミツクス−ガラス複
合材料で被覆した熱線式空気流量計用発熱抵抗素
子において、前記被覆層が非発熱部で発熱部と異
種のセラミツクスで構成されていることを特徴と
する発熱抵抗素子。 ２ 請求項第１項記載の発熱抵抗素子において、
非発熱部の被覆層ガラスで構成されていることを
特徴とする発熱抵抗素子。 ３ 請求項第１項記載の発熱抵抗素子において、
非発熱部の被覆層が発熱部と異種のセラミツクス
を含むセラミツクス−ガラス複合材料で構成され
ていることを特徴とする発熱抵抗素子。 ４ 請求項第１項、第２項、第３項記載の発熱抵
抗素子において、発熱部の被覆層を構成する材料
の熱伝導率が少なくとも０．０３（ｃａｌ／cm・
ｓｅｃ・℃）以上で且つ、非発熱部を構成する材
料の熱伝導率が少なくとも０．０１（ｃａｌ／cm
・ｓｅｃ・℃）以下であることを特徴とする発熱
抵抗素子。 ５ 請求項第１項、第２項、第３項、第４項にお
いて、非発熱部を構成するセラミツクス、ガラス
あるいはセラミツクス−ガラス複合材料が電気泳
動法により塗布されていることを特徴とする発熱
抵抗素子。[Claims for Utility Model Registration] 1. A hot wire wound into a coil, a lead wire connected to both ends, and a connecting portion between the lead wire and the hot wire covered with ceramics or a ceramic-glass composite material. 1. A heating resistor element for a hot-wire air flowmeter, characterized in that the coating layer is a non-heating part and is made of a different type of ceramic from the heating part. 2. In the heating resistance element according to claim 1,
A heat generating resistor element characterized in that a non-heat generating part is made of a glass covering layer. 3. In the heating resistance element according to claim 1,
1. A heat generating resistor element, characterized in that a coating layer of a non-heat generating part is made of a ceramic-glass composite material containing a different type of ceramic from that of the heat generating part. 4. In the heating resistance element according to claims 1, 2, and 3, the material constituting the coating layer of the heating part has a thermal conductivity of at least 0.03 (cal/cm.
sec・℃) or more, and the thermal conductivity of the material constituting the non-heat generating part is at least 0.01 (cal/cm
・sec・℃) or less. 5. The heat generating device according to claim 1, 2, 3, or 4, characterized in that the ceramic, glass, or ceramic-glass composite material constituting the non-heat generating portion is applied by electrophoresis. Resistance element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4462290U JPH044236U (en) | 1990-04-27 | 1990-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4462290U JPH044236U (en) | 1990-04-27 | 1990-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044236U true JPH044236U (en) | 1992-01-16 |
Family
ID=31558092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4462290U Pending JPH044236U (en) | 1990-04-27 | 1990-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044236U (en) |
-
1990
- 1990-04-27 JP JP4462290U patent/JPH044236U/ja active Pending
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