CN201576383U - Hot-wire type automobile airflow meter experimental box - Google Patents
Hot-wire type automobile airflow meter experimental box Download PDFInfo
- Publication number
- CN201576383U CN201576383U CN2009201943939U CN200920194393U CN201576383U CN 201576383 U CN201576383 U CN 201576383U CN 2009201943939 U CN2009201943939 U CN 2009201943939U CN 200920194393 U CN200920194393 U CN 200920194393U CN 201576383 U CN201576383 U CN 201576383U
- Authority
- CN
- China
- Prior art keywords
- hot
- airflow meter
- wire type
- teaching
- experimental box
- 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 - Fee Related
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a hot-wire type automobile airflow meter experimental box for teaching, which comprises a carrying case. Am aluminum alloy panel is mounted inside the carrying case, a signal terminal detection port, an accident arrangement switch, a digital voltmeter of signal voltage of an airflow meter, the hot-wire type airflow meter, a self-cleaning signal indication light-emitting diode, a self-cleaning switch, a fan rotation speed control knob and a signal detection terminal are installed on the aluminum alloy panel, a 220V/12V switch voltage stabilizing power supply and a fan rotation speed control module are fixed on the back of the aluminum alloy panel, and a 220V power supply input interface is disposed on the right side of a box body. The hot-wire type automobile airflow meter experimental box can truly realize direct field teaching, can stimulate running principles of hot-wire type automobile airflow meter really, is simple in structure, high in technical content, strong in reliability, convenient in operation and high in teaching efficiency, and opens up a brand-new path for teaching modes.
Description
Technical field
The utility model belongs to a kind of automobile theory teaching instrument, particularly relates to a kind of motor car engine hot wire air flowmeter experimental box.
Background technology
At present, still the device that does not have the hot wire air flowmeter theory teaching in hot wire air flowmeter theory teaching side at home and abroad, and can only be to utilize car load and engine pedestal to carry out operating while imparting knowledge to students of artificial passive type merely, this type of way not only teaching method is very inconvenient, efficiency of teaching is low, the student is not easy to understand the real principle of work of hot wire air flowmeter, thus not directly perceived, inconvenient, can't the adapt teaching training paces of development.
Summary of the invention
For solving the deficiency of above-mentioned existence, the utility model provides a kind of good reliability, easy to carry, motor car engine hot wire air flowmeter experimental box that operational efficiency is high, easy to operate.
The technical scheme that the utility model adopted is:
A kind of teaching automobile hot wire air flowmeter experimental box, it is characterized in that: described teaching comprises suitcase with automobile hot wire air flowmeter experimental box, aluminium alloy panel is installed in the suitcase, signal terminal is installed on the aluminium alloy panel detects mouth, fault is provided with switch, the digital voltmeter of air flowmeter signal voltage, hot wire air flowmeter, self-cleaning signal indication light emitting diode, self-cleaning switch, the rotation speed of the fan control handle, the input terminal, the behind of aluminium alloy panel is fixed with the 220V/12V switching power supply, rotation speed of the fan control module, the right side of casing are the 220V power input interface.
Turn on the power switch, fault is provided with switch all toggles it to the ON position, regulate the rotation speed of the fan knob, rotation speed of the fan can change with knob, respective change also can take place in the wind speed of fan, fan airstream blows the hot line silk, and respective change will take place the signal output voltage of hot wire air flowmeter, and its signal voltage shows by digital voltmeter; Pressing the self-cleaning button control circuit of hot line can stop the heating of hot line silk after 1 second, self-cleaning indication diode lights also can be bright synchronously.Stir fault and switch is set line fault can be set, can observe the variation of hot wire air flowmeter signal voltage by fault is set.
The beneficial effects of the utility model are:
One: easy to carry, directly perceived, can allow the student get information about very much structure, the circuit working principle of heating type oxygen sensors.
Two: dense rare result that heating type oxygen sensors is measured is with visual in image the indicating of diode level, the product technology content height, and volume is small and exquisite, be provided with conveniently, make simple, with low cost, and the reliability during operation, degree of stability, degree of accuracy are all very high.
Three, the input port is installed on the panel, makes things convenient for the student to use oscillograph or multimeter testing circuit signal, fault is provided with switch can arbitrarily make fault, makes things convenient for the circuit theory of students ' understanding lambda sensor.
Description of drawings
Fig. 1 is the front view in kind that the utility model assembles;
Fig. 2 is the back side plane view of the utility model panel;
Fig. 3 is a rotation speed of the fan control principle block diagram of the present utility model;
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
In Fig. 1,1 fan for the simulation rotation speed change, 2 is aluminium alloy panel, 11 power input interfaces for simulation self-cleaning burner on light, 9 faults are provided with switch, 10 for suitcase, 8 for air flowmeter signal display digit voltage table, 7 for air flowmeter side detection terminal, 6 for hot wire air flowmeter, 5 for rotation speed of the fan adjusting knob, 4 for self-cleaning switch, 3.
In Fig. 2,12 is the circuit for controlling speed of fan module, and 13 is switching power supply.
Fig. 3 is rotation speed of the fan control module circuit theory diagrams.
In conjunction with Fig. 1, Fig. 2, shown in Figure 3, hot wire air flowmeter experimental box of the present utility model:
Embodiment: teaching comprises suitcase 7 with automobile hot wire air flowmeter experimental box, aluminium alloy panel 10 is installed in the suitcase 7, signal terminal is installed on the aluminium alloy panel 10 detects mouth 5, fault is provided with switch 9, the digital voltmeter 6 of air flowmeter signal voltage, hot wire air flowmeter 4, self-cleaning signal indication light emitting diode 8, self-cleaning switch 2, rotation speed of the fan control handle 3, input terminal 5, the behind of aluminium alloy panel 10 is fixed with 220V/12V switching power supply 13, rotation speed of the fan control module 12, the right side of casing are 220V power input interface 11.
The 220V attaching plug is inserted power supply input port 11, through switching power supply 13 voltage transitions is become the 12V DC voltage, the 12V DC voltage is given air flowmeter 4 power supplies and 12 power supplies of circuit for controlling speed of fan module, rotation speed of the fan control changes the rotating speed that duty is recently controlled fan by regulating rotational speed regulation knob 3, fan passes to air flowmeter 4 with the air quantity variation, the hot line silk of air flowmeter 4 inside is with the variation generation thermal loss of flow velocity, the circuit of air flowmeter 4 inside detects the variation of electric signal thereupon thereupon, just can show the variation of air flow rate signal by digital voltmeter 6; Press self-cleaning switch 2, the hot line silk of observation hot wire air flowmeter inside can be seen rubescent, and this is the hot wire air flowmeter self-cleaning function; Use multimeter or oscilloscope measurement terminal 5 can detect the parameter of the electric signal of flowmeter; Fault is provided with switch 9 disconnects the air mass flow loop, can see disconnecting of the influence of different switches flow meter signal by rising.
Claims (1)
1. a teaching is with automobile hot wire air flowmeter experimental box, it is characterized in that: described teaching comprises suitcase (7) with automobile hot wire air flowmeter experimental box, aluminium alloy panel (10) is installed in the suitcase (7), signal terminal is installed on the aluminium alloy panel (10) detects mouthful (5), fault is provided with switch (9), the digital voltmeter of air flowmeter signal voltage (6), hot wire air flowmeter (4), self-cleaning signal indication light emitting diode (8), self-cleaning switch (2), rotation speed of the fan control handle (3), input terminal (5), the behind of aluminium alloy panel (10) is fixed with 220V/12V switching power supply (13), rotation speed of the fan control module (12), the right side of casing are 220V power input interface (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201943939U CN201576383U (en) | 2009-09-09 | 2009-09-09 | Hot-wire type automobile airflow meter experimental box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201943939U CN201576383U (en) | 2009-09-09 | 2009-09-09 | Hot-wire type automobile airflow meter experimental box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576383U true CN201576383U (en) | 2010-09-08 |
Family
ID=42696259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201943939U Expired - Fee Related CN201576383U (en) | 2009-09-09 | 2009-09-09 | Hot-wire type automobile airflow meter experimental box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869483A (en) * | 2016-05-27 | 2016-08-17 | 中原工学院 | Malfunction setting box of hot-film air flow meter sensor of automobile |
| CN112634693A (en) * | 2020-12-15 | 2021-04-09 | 重庆建安仪器有限责任公司 | Radiometer operation maintenance training system |
-
2009
- 2009-09-09 CN CN2009201943939U patent/CN201576383U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869483A (en) * | 2016-05-27 | 2016-08-17 | 中原工学院 | Malfunction setting box of hot-film air flow meter sensor of automobile |
| CN112634693A (en) * | 2020-12-15 | 2021-04-09 | 重庆建安仪器有限责任公司 | Radiometer operation maintenance training system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206114298U (en) | Bleed valve control box | |
| CN201576383U (en) | Hot-wire type automobile airflow meter experimental box | |
| CN201210243Y (en) | Socket | |
| CN109298324A (en) | The close switch automatic checkout system of one kind | |
| CN203259595U (en) | Full-automatic digital megohmmeter | |
| CN105137507B (en) | A kind of automated system for measuring cup type air velocity transducer starting and wind speed characteristics | |
| CN101451863B (en) | Automobile combination instrument test method and apparatus thereof | |
| CN201955394U (en) | Air-conditioning power consumption metering and display device | |
| CN201281729Y (en) | Grounding resistance tester | |
| CN103954801A (en) | Measuring device of rotating speed sensor | |
| CN203249751U (en) | Intelligent wind tunnel wind speed adjustment and data acquisition system | |
| CN205374024U (en) | Air outlet air speed measuring device about vehicle air conditioner | |
| CN202102006U (en) | Device for measuring rotating speed of air conditioner fan | |
| CN202735364U (en) | Mine-used electronic airflow meter and wind speed sensor detection device | |
| CN101441250A (en) | Electric generator detection system and apparatus | |
| CN201302673Y (en) | Testing device for air conditioner controllers | |
| CN105510016A (en) | Air speed measuring device for left air outlet and right air outlet of automotive air conditioner | |
| CN203870124U (en) | Rotating speed sensor measuring device | |
| CN209911466U (en) | Comprehensive test box for testing electrical circuit of aircraft accessory | |
| CN207010578U (en) | Engine-cooling system thermo-electric generation simulator stand | |
| CN201229253Y (en) | Multifunctional switch characteristic check meter | |
| CN216747806U (en) | Instrument and meter for electrician with dustproof function | |
| CN206557367U (en) | Current Voltage meter apparatus on a kind of calibration electric welding machine of lithium battery power supply | |
| CN2556067Y (en) | Control panel for gasoline generating set | |
| CN208432666U (en) | A kind of steering engine detection circuit and the cabinet apparatus for placing the detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangzhou Heying Teaching Equipment Co., Ltd. Assignor: Feng Jin|Wang Hailin Contract record no.: 2012440000502 Denomination of utility model: Hot-wire type automobile airflow meter experimental box Granted publication date: 20100908 License type: Exclusive License Record date: 20120820 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20130909 |