JPS642115U - - Google Patents
Info
- Publication number
- JPS642115U JPS642115U JP9673287U JP9673287U JPS642115U JP S642115 U JPS642115 U JP S642115U JP 9673287 U JP9673287 U JP 9673287U JP 9673287 U JP9673287 U JP 9673287U JP S642115 U JPS642115 U JP S642115U
- Authority
- JP
- Japan
- Prior art keywords
- intake air
- surface portion
- plate surface
- base material
- heat
- 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
- 238000001514 detection method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 239000010409 thin film Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図ａは本考案の一実施例における流速検出
素子の平面図、第１図ｂは同、側面図、第２図は
本考案の一実施例における流速検出素子の他の実
施例の平面図、第３図は本考案の一実施例の断面
図、第４図は本考案の一実施例における検出回路
の回路図、第５図は第１図に示した流速検出素子
の温度分布図、第６図は第１図に示した流速検出
素子に堆積物が形成された状態を示す平面図、第
７図及び第８図は流速検出素子の更に他の実施例
に係り、夫々第７図は平面図、第８図は第７図の
流速検出素子に堆積物が形成された状態を示す平
面図、第９図乃至第１２図ｂは流速検出素子の従
来技術に係り、第９図は平面図、第１０図は側面
図、第１１図は温度分布図、第１２図ａは第９図
の流速検出素子に堆積物が形成された状態を示す
平面図、第１２図ｂは同、側面図である。
１…流速検出素子、２…基材、２ａ…板面部、
３…感熱抵抗体、５…側端面。
Fig. 1a is a plan view of a flow velocity detection element according to an embodiment of the present invention, Fig. 1b is a side view of the same, and Fig. 2 is a plane view of another embodiment of the flow velocity detection element according to an embodiment of the present invention. Figure 3 is a sectional view of an embodiment of the present invention, Figure 4 is a circuit diagram of a detection circuit in an embodiment of the invention, and Figure 5 is a temperature distribution diagram of the flow rate detection element shown in Figure 1. , FIG. 6 is a plan view showing a state in which deposits are formed on the flow velocity detection element shown in FIG. 1, and FIGS. 9 is a plan view, FIG. 8 is a plan view showing a state in which deposits are formed on the flow velocity detection element shown in FIG. 7, and FIGS. is a plan view, FIG. 10 is a side view, FIG. 11 is a temperature distribution diagram, FIG. , a side view. DESCRIPTION OF SYMBOLS 1... Flow velocity detection element, 2... Base material, 2a... Plate surface part,
3... Heat-sensitive resistor, 5... Side end surface.
Claims (1)
体を付着してなる流速検出素子を、吸気通路内に
、前記基材の一端部を取付部として、前記基材の
板面部を吸入空気の流れ方向に平行にして配置し
た吸入空気量検出装置において、前記基材の吸入
空気の流れに対向する側端面から吸入空気の流れ
方向に所定距離離隔した板面部に前記感熱抵抗体
を付着したことを特徴とする吸入空気量検出装置
。 (2) 前記基材の板面部の少なくとも一部が前記
吸入空気の流れ方向に平行な長辺と、流れ方向に
垂直な短辺からなる長方形に形成されており、該
長方形板面部の前記吸入空気の流れに対向する短
辺から所定距離離隔した板面部に前記感熱抵抗体
を付着したことを特徴とする実用新案登録請求の
範囲第１項記載の吸入空気量検出装置。 (3) 前記基材の吸入空気の流れに対向する側端
面と前記感熱抵抗体付着板面部との間の前記所定
距離を、前記感熱抵抗体の発熱量が前記基材にお
いて前記感熱抵抗体付着板面部を起点として前記
吸気通路内の吸入空気の最低流速下で放熱し乍ら
伝導して前記板面部の温度が前記吸入空気の温度
と等しくなる位置までの距離より大としたことを
特徴とする実用新案登録請求の範囲第１項又は第
２項記載の吸入空気量検出装置。[Claims for Utility Model Registration] (1) A flow velocity detection element formed by attaching a thin film heat-sensitive resistor to the plate surface of a flat base material is installed in an intake passage, and one end of the base material is attached to a mounting part. In the intake air amount detection device in which the plate surface portion of the base material is arranged parallel to the flow direction of the intake air, the sensor is spaced a predetermined distance in the flow direction of the intake air from the side end surface of the base material facing the flow of the intake air. An intake air amount detection device characterized in that the heat-sensitive resistor is attached to a plate surface portion. (2) At least a part of the plate surface portion of the base material is formed into a rectangle consisting of long sides parallel to the flow direction of the intake air and short sides perpendicular to the flow direction, and the intake air of the rectangular plate surface portion 2. The intake air amount detecting device according to claim 1, wherein the heat-sensitive resistor is attached to a plate surface portion spaced a predetermined distance from the short side facing the air flow. (3) The predetermined distance between the side end face of the base material facing the flow of intake air and the surface portion of the plate to which the heat-sensitive resistor is attached is determined by the amount of heat generated by the heat-sensitive resistor on the base material. The distance from the plate surface portion as a starting point to a position where the temperature of the plate surface portion becomes equal to the temperature of the intake air through conduction while dissipating heat under the lowest flow velocity of the intake air in the intake passage. An intake air amount detection device according to claim 1 or 2 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9673287U JPS642115U (en) | 1987-06-23 | 1987-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9673287U JPS642115U (en) | 1987-06-23 | 1987-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS642115U true JPS642115U (en) | 1989-01-09 |
Family
ID=30962812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9673287U Pending JPS642115U (en) | 1987-06-23 | 1987-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642115U (en) |
-
1987
- 1987-06-23 JP JP9673287U patent/JPS642115U/ja active Pending
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