CN215218646U - Acetone gas detection device, system and wearable equipment - Google Patents

Abstract

The utility model provides a gaseous detection device of acetone, system and wearable equipment relates to gaseous detection area. The utility model discloses a gaseous detection device of acetone includes casing, lid and at least one resistance type gas sensor, and a accommodation space is injectd to the casing, and the lid setting has a plurality of bleeder vents on the top of casing and lid. At least one resistance type gas sensor is arranged in the accommodating space of the shell and used for detecting the content of acetone gas contained in the gas entering from the air holes, wherein the resistance type gas sensor is an MEMS gas sensor or a gas sensor based on nanometer materials. The utility model discloses gaseous sensor based on MEMS gas sensor or nano-material's the advantage that the size is little, easily integrated and the accuracy is high to can set up it in the airtight space of compriseing casing and lid, and provide the possibility for selecting the casing and the lid of less volume.

Description

Acetone gas detection device, system and wearable equipment

Technical Field

The utility model relates to a gaseous detection area especially relates to a gaseous detection device of acetone, system and wearable equipment.

Background

The human body exhaled air is regarded as blood headspace gas, is discharged out of the body through alveolar exchange, and can reflect the endogenous metabolic condition of the human body to a certain extent. With the continuous development of nondestructive medical diagnosis in recent years, exhaled breath analysis has the potential of clinical disease early diagnosis and large-scale screening due to the non-invasiveness, painlessness and convenience, and is receiving more and more attention. Research shows that volatile organic compounds contained in exhaled breath are closely related to the metabolic state of diseases of human bodies, such as acetone and diabetes, aldehydes and breast cancer, alkanes and oxidative stress level and the like. The qualitative and quantitative analysis of thousands of trace components in exhaled breath by modern analytical methods (such as gas chromatography, mass spectrometry, spectroscopy, sensors, etc.) makes exhaled breath analysis possible.

Acetone is a metabolite of body fat decomposition, which is discharged when a person exhales, and thus can be a good indicator of fat burning. The general method of measurement is gas chromatography or mass spectrometry, but these expensive and cumbersome laboratory devices are not suitable for everyday use by people.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at a first aspect provides a gaseous detection device of acetone, solves among the prior art and utilizes traditional sensor to detect the technical problem that the detection device size of acetone is great, the rate of accuracy is low.

The utility model discloses the further purpose of first aspect is to improve acetone gas detection device's life.

The utility model discloses the purpose of second aspect provides a gaseous detecting system of acetone.

The utility model discloses the purpose of third aspect provides a wearable equipment with gaseous detection device of above-mentioned acetone.

According to the utility model discloses an aim of first aspect, the utility model provides an acetone gas detection device, include:

a housing defining an accommodating space;

the cover body is arranged at the top of the shell and is provided with a plurality of air holes;

at least one resistance type gas sensor, set up in the casing in the accommodation space for detect by the gaseous content of acetone that contains in the gas that the bleeder vent got into, wherein, resistance type gas sensor is MEMS gas sensor or based on nano-material's gas sensor.

Optionally, the area of the resistive gas sensor is less than 5mm²。

Optionally, the upper surface of the cover body is covered with a waterproof breathable film.

Optionally, the at least one resistive gas sensor comprises at least:

a first gas sensor for detecting a preset gas different from the acetone gas;

and the second gas sensor is used for detecting the preset gas and the acetone gas.

Optionally, the method further comprises:

a printed circuit board disposed in the accommodating space of the housing;

and the control chip is arranged on the printed circuit board, and the resistance type gas sensor is arranged on the control chip.

Optionally, the method further comprises:

and the communication unit is connected with the control chip and arranged on the printed circuit board.

Optionally, the housing is configured cylindrically.

According to the utility model discloses the purpose of second aspect, the utility model also provides a gaseous detecting system of acetone, include:

the acetone gas detection device, and

and the mobile terminal is connected with the communication unit in the acetone gas detection device.

Optionally, the mobile terminal is a mobile phone or a computer.

According to the utility model discloses the purpose of third aspect, the utility model discloses a wearable equipment is provided again, wearable equipment includes foretell acetone gas detection device.

The utility model discloses a gaseous detection device of acetone detects acetone gas through adopting MEMS gas sensor or based on nanomaterial's gas sensor, because MEMS gas sensor or based on nanomaterial's gas sensor have the size little, easily integrated and the high advantage of accuracy to can set up it in the airtight space of compriseing casing and lid, and provide the possibility for selecting less bulky casing and lid. Therefore, the acetone gas detection device achieves the technical purposes of small volume and high accuracy.

Further, the area of the resistance type gas sensor can be made smaller than 5mm²Therefore, the purpose of applying the acetone gas detection device to a device or equipment with smaller volume can be realized.

Further, the utility model discloses a lid upper surface covers has waterproof ventilated membrane. Adopt waterproof ventilated membrane can filter the steam that produces when human exhalation, avoid steam to enter into in the casing, influence resistance type gas sensor's detection effect and life.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of an acetone gas detection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an acetone gas detection apparatus according to another embodiment of the present invention;

fig. 3 is a schematic block diagram of an acetone gas detection system according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Example 1:

fig. 1 is a schematic structural view of an acetone gas detection apparatus 100 according to an embodiment of the present invention. As shown in fig. 1, the acetone gas detecting device 100 includes a housing 10, a cover 20, and at least one resistance type gas sensor 30, wherein the housing 10 defines an accommodating space, the cover 20 is disposed on the top of the housing 10, and the cover 20 has a plurality of ventilation holes 21. At least one resistance type gas sensor 30 is disposed in the receiving space of the case 10 for detecting the content of acetone gas contained in the gas entering through the vent hole 21, wherein the resistance type gas sensor 30 is a MEMS gas sensor or a nano material based gas sensor.

The utility model discloses gas sensor based on MEMS gas sensor or nano-material's size is little, and the advantage that easily integration and accuracy are high utilizes MEMS gas sensor or nano-material's gas element to detect acetone gas to can detect acetone gas content more accurately, and can reduce acetone gas detection device 100's integrated size, portable or installation.

Specifically, the utility model discloses well resistance type gas sensor 30's area is less than 5mm²For example, it may be 1mm²、2mm²、3mm²Or 4mm²Preferably 1mm². The area of the resistive gas sensor 30 refers to the surface area of the resistive gas sensor 30, that is, the surface of the resistive gas sensor 30 has a length and a width, for example, the length and the width are 1mm, respectively, and the surface area of the resistive gas sensor 30 is 1mm². Compared to conventional catalytic combustion sensors, electrochemical sensors, semiconductor sensors, chromatography, spectroscopy, MEMS gas sensors or nanomaterial-based gas sensors have low power consumption, typically below 50mw, e.g. power consumption can be as low as 10 mw.

Further, the at least one resistive gas sensor 30 includes at least a first gas sensor and a second gas sensor. The first gas sensor is used for detecting preset gas different from acetone gas, and the second gas sensor is used for detecting the preset gas and the acetone gas. The predetermined gas may be, for example, an aldehyde or an alkane. This first gas sensor and second gas sensor can constitute two passageway gas sensor arrays, and when first gas sensor and second gas sensor all had the response, the gas in the explanation environment this moment is preset gas, and when only the second gas sensor had the response, the gas in the explanation environment this moment was acetone gas. The detection accuracy can be improved by the two different gas sensors. When a gas sensor that responds only to acetone gas cannot be selected, the accuracy of detection by the gas sensor array can be improved in this way. Of course, in other embodiments, other types of sensor combinations may be selected, and the at least one resistive gas sensor 30 may further include a third gas sensor, a fourth gas sensor, and the like, so that a gas sensor array with more channels, such as a multi-channel gas sensor array with three channels, four channels, and the like, may be formed. Therefore, the utility model discloses a multichannel's mode comes the interference of discharge environment, improves the accuracy of the detection of sensor.

In this embodiment, the acetone gas detecting device 100 further comprises a printed wiring board 60 and a control chip 50, wherein the printed wiring board 60 is disposed in the accommodating space of the casing 10, the control chip 50 is disposed on the printed wiring board 60, and the resistance type gas sensor 30 is disposed on the control chip 50.

In this exemplary embodiment, the housing 10 is of cylindrical design. The printed wiring board 60 is configured in a circular shape having the same cross section as the housing 10.

Fig. 2 is a schematic structural view of an acetone gas detection apparatus 100 according to another embodiment of the present invention. In a preferred embodiment, as shown in fig. 2, the upper surface of the cover 20 is covered with a waterproof, breathable membrane 40. The utility model discloses a steam that produces when waterproof ventilated membrane 40 can filter human body exhalation, avoids steam to enter into casing 10 in, influences resistive gas sensor 30's detection effect and life.

Further, the acetone gas detecting device 100 further includes a communication unit 70 connected to the control chip 50, and the communication unit 70 is disposed on the printed circuit board 60. The utility model discloses can transmit the gas content data that resistance type gas sensor 30 detected for mobile terminal, for example cell-phone or computer etc. through communication unit 70, mobile terminal is through carrying out the analysis to data to show the analysis result for the user, convenience of customers in time knows the health problem of self.

Fig. 3 is a schematic block diagram of an acetone gas detection system according to an embodiment of the present invention. As shown in fig. 3, the acetone gas detection system includes the acetone gas detection device 100 and the mobile terminal 200, and the mobile terminal 200 is connected to the communication unit 70 in the acetone gas detection device 100. Specifically, the mobile terminal 200 is a mobile phone or a computer. The acetone gas detecting device 100 is not described in detail herein.

The utility model also provides a wearable equipment, wearable equipment installs foretell acetone gas detection device 100. The acetone gas detecting device 100 is not described in detail herein. For example, the wearable device may be a watch or a headset or other such everyday item.

The utility model discloses a gaseous detection device of acetone 100 is after last electricity, and resistance type gas sensor 30 and control chip 50 begin to operate, carry out data acquisition and data calculation. When the mouth is as close to the upper cover as possible when the human body exhales, the resistive gas sensor 30 and the control chip 50 measure and calculate the content of acetone gas in the currently exhaled air, and then send the measured and calculated data to the communication unit 70, the communication unit 70 transmits the data to the mobile terminal 200, and the mobile terminal 200 can analyze the health data of the user through the content of acetone gas, so that the user can know the health condition of the user in time. The utility model provides a gaseous detection device of acetone 100 volumes is less, portable, and the user can monitor the health status of self at any time.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. An acetone gas detection device, comprising:

a housing defining an accommodating space;

the cover body is arranged at the top of the shell and is provided with a plurality of air holes;

at least one resistance type gas sensor, set up in the casing in the accommodation space for detect by the gaseous content of acetone that contains in the gas that the bleeder vent got into, wherein, resistance type gas sensor is MEMS gas sensor or based on nano-material's gas sensor.

2. The acetone gas detecting apparatus according to claim 1, wherein the area of the resistance type gas sensor is less than 5mm²。

3. The acetone gas detecting apparatus according to claim 1 or 2, wherein the upper surface of the lid body is covered with a waterproof breathable film.

4. The acetone gas detecting apparatus according to claim 1 or 2, wherein the at least one resistance type gas sensor includes at least:

a first gas sensor for detecting a preset gas different from the acetone gas;

and the second gas sensor is used for detecting the preset gas and the acetone gas.

5. The acetone gas detecting apparatus according to claim 1 or 2, further comprising:

a printed circuit board disposed in the accommodating space of the housing;

and the control chip is arranged on the printed circuit board, and the resistance type gas sensor is arranged on the control chip.

6. The acetone gas detecting apparatus according to claim 5, further comprising:

and the communication unit is connected with the control chip and arranged on the printed circuit board.

7. The acetone gas detecting apparatus according to any one of claims 1 to 2 and 6, wherein the housing is configured in a cylindrical shape.

8. An acetone gas detection system, comprising:

the acetone gas detecting apparatus as claimed in any one of claims 1 to 7, and

and the mobile terminal is connected with the communication unit in the acetone gas detection device.

9. The acetone gas detecting system of claim 8,

the mobile terminal is a mobile phone or a computer.

10. A wearable device, characterized in that the wearable device comprises the acetone gas detection apparatus of any one of claims 1-7.

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