JPS6440023U - - Google Patents
Info
- Publication number
- JPS6440023U JPS6440023U JP13449087U JP13449087U JPS6440023U JP S6440023 U JPS6440023 U JP S6440023U JP 13449087 U JP13449087 U JP 13449087U JP 13449087 U JP13449087 U JP 13449087U JP S6440023 U JPS6440023 U JP S6440023U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- housing
- capacitor
- hot
- heating resistor
- 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、第２図は、本案の一実施例である熱線
式空気流量計の断面図、第３図および第４図は熱
線式空気流量計の駆動回路の平面図および断面図
、第５図から第９図はシールドケースとベースの
接続部の断面図、第１０図は電波障害特性試験結
果を示す図である。
１……ホツトワイヤ、２……コールドワイヤ、
３……モールドケース、４……ベース、５……吸
入空気、６……ワイヤ、８……支持部材、９……
支持ピン、１０……ボデイ、１１……駆動回路、
１２……シールドケース、１４……ワイヤ、１５
……貫通コンデンサ、１６……ネジ、１７……ピ
ン、１８……ピン、１９……突起、２０……導電
性接着剤。
1 and 2 are cross-sectional views of a hot-wire air flowmeter that is an embodiment of the present invention, FIGS. 3 and 4 are plan views and cross-sectional views of the drive circuit of the hot-wire air flowmeter, and FIG. 9 to 9 are cross-sectional views of the connecting portion between the shield case and the base, and FIG. 10 is a diagram showing the results of a radio wave interference characteristic test. 1...Hot wire, 2...Cold wire,
3...Mold case, 4...Base, 5...Intake air, 6...Wire, 8...Support member, 9...
Support pin, 10...Body, 11...Drive circuit,
12... Shield case, 14... Wire, 15
...Feedthrough capacitor, 16...screw, 17...pin, 18...pin, 19...protrusion, 20...conductive adhesive.
Claims (1)
通路を形成するハウジング及び前記発熱抵抗体を
定められた温度に加熱すると共に、該加熱電圧を
空気流量に対応した出力電圧信号に変換する駆動
回路から成る熱線式空気流量計において、前記ハ
ウジングに形成された外部接続用端子または、端
子と駆動回路を接続する導電性部材からコンデン
サを介して、前記ハウジングに導通させる位置を
、前記コンデンサの真下付近で、しかも、駆動回
路を形成している基板端を越えない範囲の一部に
設けたことを特徴とする熱線式空気流量計。 A housing that forms an intake air passage with a heating resistor installed in the air passage, and a drive circuit that heats the heating resistor to a predetermined temperature and converts the heating voltage into an output voltage signal corresponding to the air flow rate. In the hot-wire air flowmeter, the position where conduction is made from the external connection terminal formed on the housing or the conductive member connecting the terminal and the drive circuit to the housing via the capacitor is located near directly below the capacitor. Moreover, the hot wire air flowmeter is characterized in that it is installed in a part of the area that does not extend beyond the edge of the substrate forming the drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13449087U JPS6440023U (en) | 1987-09-04 | 1987-09-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13449087U JPS6440023U (en) | 1987-09-04 | 1987-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6440023U true JPS6440023U (en) | 1989-03-09 |
Family
ID=31393292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13449087U Pending JPS6440023U (en) | 1987-09-04 | 1987-09-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6440023U (en) |
-
1987
- 1987-09-04 JP JP13449087U patent/JPS6440023U/ja active Pending
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