CN213181441U - Vehicle-mounted carbon dioxide detection device - Google Patents
Vehicle-mounted carbon dioxide detection device Download PDFInfo
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- CN213181441U CN213181441U CN202021408158.XU CN202021408158U CN213181441U CN 213181441 U CN213181441 U CN 213181441U CN 202021408158 U CN202021408158 U CN 202021408158U CN 213181441 U CN213181441 U CN 213181441U
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Abstract
The utility model discloses a vehicle-mounted carbon dioxide detection device, which comprises a detection device body and a sampling device, wherein the sampling device is fixedly connected with the detection device body; the cross section of the detection device body is circular, a display screen is arranged on the outer surface of the front end of the detection device body, a sound outlet hole and an alarm lamp are arranged above the display screen, a plurality of function keys are arranged below the display screen, and the function keys are arranged at equal intervals along the periphery of the detection device body; a USB interface is arranged below the function key; the sampling device comprises a pipe sleeve and a sampling head, one end of the pipe sleeve is connected with the detection device body, and the other end of the pipe sleeve is connected with the sampling head. The utility model discloses simple structure, convenient to use, sampling device can detect the concentration of CO2 of not CO-altitude or depth range in the car through setting up the flexible pipe box of buckling, and it is high to detect the precision, and sensitivity is high.
Description
Technical Field
The utility model belongs to the technical field of detection device, concretely relates to on-vehicle carbon dioxide detection device.
Background
The air pollution in the automobile refers to the condition that the air quality in the automobile is poor due to the reasons of no ventilation, body decoration and the like, particularly, the concentration of carbon dioxide is increased, the carbon dioxide is not toxic, but the concentration of oxygen is reduced along with the increase of the concentration of the carbon dioxide, the content of the carbon dioxide in the air with sufficient oxygen is reduced by 5 percent, and the air is harmless to people, but if the content of the oxygen is lower than 17 percent, the carbon dioxide poisoning can be caused; patients with mild carbon dioxide poisoning may have dizziness, palpitation, coma, convulsion, or even death due to sudden respiratory arrest. Therefore, it is necessary to provide an on-vehicle carbon dioxide detection device.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's situation, overcome above defect, provide a vehicle-mounted carbon dioxide detection device.
In order to achieve the above object, the present invention is achieved by the following technical means.
A vehicle-mounted carbon dioxide detection device comprises a detection device body and a sampling device, wherein the sampling device is fixedly connected with the detection device body; the cross section of the detection device body is circular, a display screen is arranged on the outer surface of the front end of the detection device body, a sound outlet hole and an alarm lamp are arranged above the display screen, a plurality of function keys are arranged below the display screen, and the function keys are arranged at equal intervals along the periphery of the detection device body; a USB interface is arranged below the function key; the sampling device comprises a pipe sleeve and a sampling head, wherein one end of the pipe sleeve is connected with the detection device body, and the other end of the pipe sleeve is connected with the sampling head; a carbon dioxide sensing circuit is arranged in the detection device body.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the carbon dioxide sensing circuit includes a chip P1, a chip P2, an amplifier U1, and an amplifier U2; wherein:
the 2 pin of the chip P1 is connected with the 4 pin of an amplifier U2;
the 3 pin of the chip P1 is connected with the 2 pin of an amplifier U2;
the 5-pin of the chip P1 is connected with one end of an adjustable resistor Rp3 and one end of a resistor R2; the other end of the adjustable resistor Rp3 is connected with a pin 2 of a chip P2; the other end of the resistor R2 is connected with a 5 pin of a chip P2;
the 1 pin and the 3 pin of the chip P2 are simultaneously connected with the 5 pin of the chip P5;
the 2 pin of the chip P2 is connected with a power supply;
the 5 pin of the chip P2 is grounded;
the 4 pin and the 6 pin of the chip P2 are simultaneously connected with the 3 pin of an amplifier U1;
the 2 pin of the amplifier U1 is simultaneously connected with one end of a resistor R1 and one end of a resistor R3, and the other end of the resistor R3 is grounded; the other end of the resistor R1 is connected with a pin 6 of an amplifier U1;
the 6 pin of the amplifier U1 is connected with the 2 pin of the amplifier U2;
the 7 pin of the amplifier U1 is connected with a power supply;
the 1 pin and the 5 pin of the amplifier U2 are connected with a potentiometer Rp1, the potentiometer Rp1 is grounded, and the 5 pin of the amplifier U2 is simultaneously connected with a power supply;
the 2 pin of the amplifier U2 is connected with one end of a capacitor C1, and the other end of the capacitor C1 is connected with the 3 pin of an amplifier U2;
the 3 pin of the amplifier U2 is grounded;
the 4-pin of the amplifier U2 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is grounded; the 4 pins of the amplifier U2 are simultaneously connected with the cathode of the light emitting diode, and the anode of the light emitting diode is connected with a power supply.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the pipe casing is a flexible and bendable pipe casing.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the chip P1 and the chip P2 are carbon dioxide sensors of MG811 type, respectively.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the models of the amplifier U1 and the amplifier U2 are respectively LM 393.
The utility model discloses a vehicle-mounted carbon dioxide detection device, its beneficial effect lies in: the utility model discloses simple structure, convenient to use, sampling device can detect the concentration of CO2 of not CO-altitude or depth range in the car through setting up the flexible pipe box of buckling, and it is high to detect the precision, and sensitivity is high.
Drawings
Fig. 1 is a schematic overall structure diagram of the preferred embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a carbon dioxide sensing circuit according to a preferred embodiment of the present invention.
The reference numerals include: the device comprises a detection device body 10, a display screen 11, a sound outlet hole 12, an alarm lamp 13, a function key 14, a USB interface 15, a sampling device 20, a pipe sleeve 21 and a sampling head 22.
Detailed Description
The utility model discloses an on-vehicle carbon dioxide detection device combines preferred embodiment below, and is right the utility model discloses a detailed embodiment does further description.
Referring to fig. 1 to 2 of the drawings, fig. 1 is a schematic view of the overall structure of the preferred embodiment of the present invention; fig. 2 is a schematic circuit diagram of a carbon dioxide sensing circuit according to a preferred embodiment of the present invention.
A vehicle-mounted carbon dioxide detection device comprises a detection device body 10 and a sampling device 20, wherein the sampling device 20 is fixedly connected with the detection device body 10; the cross section of the detection device body 10 is circular, a display screen 11 is arranged on the outer surface of the front end of the detection device body 10, a sound outlet hole 12 and an alarm lamp 13 are arranged above the display screen (when the concentration of the detected carbon dioxide is too high, the sound outlet hole 12 gives an alarm sound, and the alarm lamp 13 starts to flash to achieve the alarm effect), a plurality of function keys 14 are arranged below the display screen 11, and the function keys 14 are arranged at equal intervals along the periphery of the detection device body 10; a USB interface 15 (which is convenient for charging and is convenient for leading detected data into a computer) is arranged below the function key 14; the sampling device 20 comprises a pipe sleeve 21 and a sampling head 22, wherein one end of the pipe sleeve 21 is connected with the detection device body 10, and the other end of the pipe sleeve is connected with the sampling head 22; a carbon dioxide sensing circuit is arranged in the detection device body 10.
Preferably, the carbon dioxide sensing circuit comprises a chip P1, a chip P2, an amplifier U1 and an amplifier U2; wherein:
the 2 pin of the chip P1 is connected with the 4 pin of an amplifier U2;
the 3 pin of the chip P1 is connected with the 2 pin of an amplifier U2;
the 5-pin of the chip P1 is connected with one end of an adjustable resistor Rp3 and one end of a resistor R2; the other end of the adjustable resistor Rp3 is connected with a pin 2 of a chip P2; the other end of the resistor R2 is connected with a 5 pin of a chip P2;
the 1 pin and the 3 pin of the chip P2 are simultaneously connected with the 5 pin of the chip P5;
the 2 pin of the chip P2 is connected with a power supply;
the 5 pin of the chip P2 is grounded;
the 4 pin and the 6 pin of the chip P2 are simultaneously connected with the 3 pin of an amplifier U1;
the 2 pin of the amplifier U1 is simultaneously connected with one end of a resistor R1 and one end of a resistor R3, and the other end of the resistor R3 is grounded; the other end of the resistor R1 is connected with a pin 6 of an amplifier U1;
the 6 pin of the amplifier U1 is connected with the 2 pin of the amplifier U2;
the 7 pin of the amplifier U1 is connected with a power supply;
the 1 pin and the 5 pin of the amplifier U2 are connected with a potentiometer Rp1, the potentiometer Rp1 is grounded, and the 5 pin of the amplifier U2 is simultaneously connected with a power supply;
the 2 pin of the amplifier U2 is connected with one end of a capacitor C1, and the other end of the capacitor C1 is connected with the 3 pin of an amplifier U2;
the 3 pin of the amplifier U2 is grounded;
the 4-pin of the amplifier U2 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is grounded; the 4 pins of the amplifier U2 are simultaneously connected with the cathode of the light emitting diode, and the anode of the light emitting diode is connected with a power supply.
Preferably, the pipe sleeve 21 is a flexible bendable pipe sleeve; the concentration of CO2 can be detected at different heights or depth ranges within the vehicle.
Preferably, the chip P1 and the chip P2 are respectively MG811 model carbon dioxide sensors.
Preferably, the amplifier U1 and the amplifier U2 are each of type LM 393.
It should be mentioned that the present invention relates to the technical features such as the type selection of the light emitting diode, which should be regarded as the prior art, and the specific structure, the operation principle of these technical features and the control mode and the space arrangement mode that may be involved are all the conventional choices in the field, which should not be regarded as the invention point of the present invention, and the present invention is not further specifically described in detail.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides an on-vehicle carbon dioxide detection device which characterized in that: the device comprises a detection device body and a sampling device, wherein the sampling device is fixedly connected with the detection device body; the cross section of the detection device body is circular, a display screen is arranged on the outer surface of the front end of the detection device body, a sound outlet hole and an alarm lamp are arranged above the display screen, a plurality of function keys are arranged below the display screen, and the function keys are arranged at equal intervals along the periphery of the detection device body; a USB interface is arranged below the function key; the sampling device comprises a pipe sleeve and a sampling head, wherein one end of the pipe sleeve is connected with the detection device body, and the other end of the pipe sleeve is connected with the sampling head; a carbon dioxide sensing circuit is arranged in the detection device body.
2. The vehicle-mounted carbon dioxide detection device according to claim 1, characterized in that: the carbon dioxide sensing circuit comprises a chip P1, a chip P2, an amplifier U1 and an amplifier U2; wherein:
the 2 pin of the chip P1 is connected with the 4 pin of an amplifier U2;
the 3 pin of the chip P1 is connected with the 2 pin of an amplifier U2;
the 5-pin of the chip P1 is connected with one end of an adjustable resistor Rp3 and one end of a resistor R2; the other end of the adjustable resistor Rp3 is connected with a pin 2 of a chip P2; the other end of the resistor R2 is connected with a 5 pin of a chip P2;
the 1 pin and the 3 pin of the chip P2 are simultaneously connected with the 5 pin of the chip P5;
the 2 pin of the chip P2 is connected with a power supply;
the 5 pin of the chip P2 is grounded;
the 4 pin and the 6 pin of the chip P2 are simultaneously connected with the 3 pin of an amplifier U1;
pins 1, 4 and 5 of the amplifier U1 are simultaneously connected with a potentiometer Rp2, and a pin 4 of the amplifier U1 is grounded;
the 2 pin of the amplifier U1 is simultaneously connected with one end of a resistor R1 and one end of a resistor R3, and the other end of the resistor R3 is grounded; the other end of the resistor R1 is connected with a pin 6 of an amplifier U1;
the 6 pin of the amplifier U1 is connected with the 2 pin of the amplifier U2;
the 7 pin of the amplifier U1 is connected with a power supply;
the 1 pin and the 5 pin of the amplifier U2 are connected with a potentiometer Rp1, the potentiometer Rp1 is grounded, and the 5 pin of the amplifier U2 is simultaneously connected with a power supply;
the 2 pin of the amplifier U2 is connected with one end of a capacitor C1, and the other end of the capacitor C1 is connected with the 3 pin of an amplifier U2;
the 3 pin of the amplifier U2 is grounded;
the 4-pin of the amplifier U2 is connected with one end of a capacitor C2, and the other end of the capacitor C2 is grounded; the 4 pins of the amplifier U2 are simultaneously connected with the cathode of the light emitting diode, and the anode of the light emitting diode is connected with a power supply.
3. The vehicle-mounted carbon dioxide detection device according to claim 1, characterized in that: the pipe sleeve is a flexible bendable pipe sleeve.
4. The vehicle-mounted carbon dioxide detection device according to claim 2, characterized in that: the chip P1 and the chip P2 are respectively MG811 model carbon dioxide sensors.
5. The vehicle-mounted carbon dioxide detection device according to claim 2, characterized in that: the amplifier U1 and the amplifier U2 are respectively of the type LM 393.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021408158.XU CN213181441U (en) | 2020-07-16 | 2020-07-16 | Vehicle-mounted carbon dioxide detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021408158.XU CN213181441U (en) | 2020-07-16 | 2020-07-16 | Vehicle-mounted carbon dioxide detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213181441U true CN213181441U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021408158.XU Active CN213181441U (en) | 2020-07-16 | 2020-07-16 | Vehicle-mounted carbon dioxide detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213181441U (en) |
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2020
- 2020-07-16 CN CN202021408158.XU patent/CN213181441U/en active Active
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