CN210742240U - Low-cost air quality detector - Google Patents
Low-cost air quality detector Download PDFInfo
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- CN210742240U CN210742240U CN201921781888.1U CN201921781888U CN210742240U CN 210742240 U CN210742240 U CN 210742240U CN 201921781888 U CN201921781888 U CN 201921781888U CN 210742240 U CN210742240 U CN 210742240U
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- circuit board
- indicator lamp
- upper shell
- air quality
- quality detector
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Abstract
The utility model discloses a low-cost air quality detector, which comprises an upper shell, a circuit board, a lithium battery, a connecting carrier and a lower shell, the circuit board is detachably arranged in the lower shell, the left end of the circuit board is electrically connected with a USB interface and a lithium battery, the middle part of the circuit board is electrically connected with a connecting carrier, the outer side of the connecting carrier is fixedly provided with a nixie tube, the right end of the circuit board is electrically connected with a formaldehyde sensor and a TVOC sensor, an upper shell is detachably arranged above the circuit board, a transparent panel is fixedly arranged on the outer side of the upper shell, a switching indicator lamp is fixedly arranged on the outer side of the middle part of the upper shell, an overproof indicator lamp is fixedly arranged on the right side of the switching indicator lamp, a charging indicator lamp is fixedly arranged below the switching indicator lamp, the charge indicator lamp right side movable mounting has the button, the bleeder vent has been seted up to the epitheca right side surface. The utility model discloses a miniaturized lithium cell, two kinds of pollutant measuring module realize miniaturized, simple easy-to-use, the cost is lower.
Description
Technical Field
The utility model relates to an empty gas detection surveys the field, specifically is a low-cost air quality detector.
Background
At present, more and more detection functions such as temperature, humidity, electromagnetic radiation, dust, formaldehyde, TVOC and the like are added to the air quality detector, and each gas needs a corresponding sensor, so that the problem of high cost is caused. Among the living environmental pollutants, formaldehyde and TVOC are the most concerned detection variables. Therefore, a simple and low-cost air quality detector is an important requirement.
SUMMERY OF THE UTILITY MODEL
For solving the problem that appears among the prior art, the utility model provides a low-cost air quality detector.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a low-cost air quality detector, which comprises an upper shell, a circuit board, a lithium battery, a connecting carrier and a lower shell, the circuit board is detachably arranged in the lower shell, the left end of the circuit board is electrically connected with a USB interface and a lithium battery, the middle part of the circuit board is electrically connected with a connecting carrier, the outer side of the connecting carrier is fixedly provided with a nixie tube, the right end of the circuit board is electrically connected with a formaldehyde sensor and a TVOC sensor, an upper shell is detachably arranged above the circuit board, a transparent panel is fixedly arranged on the outer side of the upper shell, a switching indicator lamp is fixedly arranged on the outer side of the middle part of the upper shell, an overproof indicator lamp is fixedly arranged on the right side of the switching indicator lamp, a charging indicator lamp is fixedly arranged below the switching indicator lamp, the charge indicator lamp right side movable mounting has the button, the bleeder vent has been seted up to the epitheca right side surface.
Further, USB interface, lithium cell, connection carrier, formaldehyde sensor and TVOC sensor all weld in the circuit board outside, switch pilot lamp, the pilot lamp that exceeds standard, charge pilot lamp and button all through wire and circuit board electric connection.
Furthermore, the number of the keys is two, one is a switch button, and the other is a switching or zero calibration button.
Further, the USB interface is welded on the circuit board and aligned with the charging port of the lower shell for the access of an external power supply.
Furthermore, the bleeder vent comprises a plurality of circular ports, and evenly distributed is 4 triangle-shaped to sharp states.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the miniature lithium battery and the two pollutant measuring modules are adopted, so that the miniaturization, simplicity, easy use and lower cost are realized.
2. Through the transparent panel and the pilot lamp that set up, the required data message of observation that the user can be clear, it is comparatively convenient to use.
Drawings
Fig. 1 is a schematic diagram of the overall explosion structure of the present invention;
fig. 2 is a schematic front structural view of the present invention.
In the figure: 1. a transparent panel; 2. an upper shell; 3. a USB interface; 4. a lithium battery; 5. connecting a carrier; 6. a lower case; 7. a nixie tube; 8. a formaldehyde sensor; 9. a TVOC sensor; 10. a circuit board; 11. switching an indicator light; 12. an over-standard indicator light; 13. air holes are formed; 14. a charging indicator light; 15. and (6) pressing a key.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1-2, a low-cost air quality detector comprises an upper shell 2, a circuit board 10, a lithium battery 4, a connecting carrier 5 and a lower shell 6, wherein the circuit board 10 is detachably mounted inside the lower shell 6, the left end of the circuit board 10 is electrically connected with a USB interface 3 and the lithium battery 4, the middle part of the circuit board 10 is electrically connected with the connecting carrier 5, a nixie tube 7 is fixedly mounted at the right side of the connecting carrier 5, a formaldehyde sensor 8 and a TVOC sensor 9 are electrically connected at the right end of the circuit board 10, the upper shell 2 is detachably mounted above the circuit board 10, a transparent panel 1 is fixedly mounted at the outer side of the upper shell 2, a switching indicator lamp 11 is fixedly mounted at the outer side of the middle part of the upper shell 2, a standard-exceeding indicator lamp 12 is fixedly mounted at the right side of the switching indicator lamp 11, a charging indicator lamp 14 is fixedly mounted, the outer surface of the right side of the upper shell 2 is provided with an air hole 13.
Wherein, it should be noted that the light-transmitting panel 1 is connected with the upper shell 2 through a buckle, and relevant indication characters are printed on the surface of the light-transmitting panel in a silk-screen manner.
Wherein, it should be noted that, circuit board 10 contains other auxiliary circuit such as charge control unit, lithium cell 4, charactron 7, button 15, TVOC sensor 9 for measure the concentration value of TVOC pollutant, it is directly welded on circuit board 10, formaldehyde sensor 8 for measure formaldehyde gas concentration, it is connected to circuit board 10 through the winding displacement, switching pilot lamp 11 is used for instructing the current value that charactron 7 shows and is the concentration of TVOC or formaldehyde, indicator 12 that exceeds standard is used for instructing present display gas whether exceeds standard, if not exceed standard green light bright, exceed standard red light bright, charge pilot lamp 14 is used for instructing lithium cell 4 electric quantity whether full of, is not full of red light bright, is full of green light bright.
The key 15 is provided with two keys, one is a switch button, and the other is a switching or zero calibration button.
The USB interface 3 is soldered to the circuit board 10 and aligned with the charging port of the lower case 6 for the access of an external power source.
The bleeder vent 13 comprises a plurality of circular ports, and evenly distributed is 4 triangle-shaped to sharp states.
It should be noted that the air holes 13 are used for realizing air circulation, so as to ensure the accuracy of the measured value of the pollutants.
The working principle is as follows: the method comprises the steps that all parts are installed at specified positions according to the specification and the attached drawings, the lithium battery 4 supplies power to power utilization parts of the device, air enters the device from the air holes 13, corresponding data are measured by the formaldehyde sensor 8 and the TVOC sensor 9 at the moment, corresponding values are displayed by the nixie tube 7, the switching indicator lamp 11 is used for indicating whether the value displayed by the nixie tube 7 is TVOC or formaldehyde concentration at present, the standard exceeding indicator lamp 12 is used for indicating whether the displayed gas is standard exceeding or not, if the standard exceeding indicator lamp is not standard exceeding, the green lamp is on, the standard exceeding red lamp is on, the charging indicator lamp 14 is used for indicating whether the electric quantity of the lithium battery 4 is full, the red lamp is not full, the green lamp is full, if adjustment is needed, one is operated through the key 15, the other is a switch button, the other is a switching or zero calibration button, short-press switching is performed, zero.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited by the above embodiments, and that the orientations indicated by the terms "upper", "lower", "left" and "right" are based on the orientation shown in the drawings, and are only for convenience of description rather than requiring that the present invention must be operated in a specific orientation, and therefore should not be construed as limiting the present invention, and that the above embodiments and the description are only illustrative of the principles of the present invention, and that the present invention may be subject to various changes and modifications without departing from the spirit and scope of the present invention, and that such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a low-cost air quality detector, includes epitheca (2), circuit board (10), lithium cell (4), connection carrier (5) and inferior valve (6), its characterized in that: the improved solar battery is characterized in that a circuit board (10) is detachably mounted inside the lower shell (6), the left end of the circuit board (10) is electrically connected with a USB interface (3) and a lithium battery (4), the middle part of the circuit board (10) is electrically connected with a connecting carrier (5), the outer side of the connecting carrier (5) is fixedly provided with a nixie tube (7), the right end of the circuit board (10) is electrically connected with a formaldehyde sensor (8) and a TVOC sensor (9), an upper shell (2) is detachably mounted above the circuit board (10), the outer side of the upper shell (2) is fixedly provided with a transparent panel (1), the outer side of the middle part of the upper shell (2) is fixedly provided with a switching indicator lamp (11), the right side of the switching indicator lamp (11) is fixedly provided with a standard exceeding indicator lamp (12), the lower part of the switching indicator lamp (11) is fixedly provided with a, the outer surface of the right side of the upper shell (2) is provided with an air hole (13).
2. A low cost air quality detector according to claim 1, wherein: USB interface (3), lithium cell (4), connection carrier (5), formaldehyde sensor (8) and TVOC sensor (9) all weld in circuit board (10) outside, switch pilot lamp (11), exceed standard pilot lamp (12), charge pilot lamp (14) and button (15) all through wire and circuit board (10) electric connection.
3. A low cost air quality detector according to claim 1, wherein: the number of the keys (15) is two, one is a switch button, and the other is a switching or zero calibration button.
4. A low cost air quality detector according to claim 1, wherein: the USB interface (3) is welded on the circuit board (10) and is aligned with the charging port of the lower shell (6) for the access of an external power supply.
5. A low cost air quality detector according to claim 1, wherein: the air holes (13) are formed by a plurality of circular holes and are uniformly distributed in a 4-triangular pointed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781888.1U CN210742240U (en) | 2019-10-23 | 2019-10-23 | Low-cost air quality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921781888.1U CN210742240U (en) | 2019-10-23 | 2019-10-23 | Low-cost air quality detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210742240U true CN210742240U (en) | 2020-06-12 |
Family
ID=70986157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921781888.1U Active CN210742240U (en) | 2019-10-23 | 2019-10-23 | Low-cost air quality detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210742240U (en) |
-
2019
- 2019-10-23 CN CN201921781888.1U patent/CN210742240U/en active Active
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