CN217279294U - Detect intelligent wrist-watch of VOC gas concentration in air - Google Patents

Abstract

The utility model discloses a detect intelligent wrist-watch of VOC gas concentration in air, including watchcase, main control circuit board, battery and VOC gas sensor, be provided with one in the watchcase and hold the chamber, main control circuit board, battery, VOC gas sensor all set up in holding the intracavity, are equipped with microprocessor on this main control circuit board, microprocessor with battery and VOC gas sensor electric connection. The lateral wall of one side of watchcase is seted up and is held the inspection hole that the chamber communicates, and VOC gas sensor's sense terminal dress inlays in the inspection hole. The utility model discloses technical scheme sets up VOC gas sensor on intelligent wrist-watch, and the user can detect the VOC gas in the air through VOC gas sensor's sense terminal and measure and show measuring VOC gas concentration data through display module after wearing this intelligent wrist-watch to it is great to solve traditional detecting instrument volume, the problem of being not convenient for carry at any time.

Description

A smart watch that detects the concentration of VOC gas in the air

technical field

The utility model relates to the technical field of smart wearable devices, in particular to a smart watch with the function of detecting the concentration of VOC gas in the air.

Background technique

VOC is the abbreviation of volatile organic compounds, which are recognized as harmful pollutants. The common ones are benzene, toluene, styrene, ethylene glycol, propylene glycol, ether, acetone, isobutyl nitrite, trichloroethylene, etc. . In the production process of petrochemical industry, paint coating, printing manufacturing, home decoration and other industries, a large amount of polluting VOC gas will be generated, and the VOC gas will be directly discharged into the atmosphere, and the VOC will undergo a photochemical reaction under the action of light, which will lead to photochemical smog The increase of secondary organic aerosols and atmospheric organic acids can destroy the ozone layer, which is an important reason for the formation of haze weather (PM 2.5), and the VOC gas in the air also has certain toxicity, irritation, and carcinogenicity. Excessive inhalation can affect health and be extremely harmful to the human body. For the measurement of VOC gas concentration in the air, it is necessary to use a dedicated VOC gas detection instrument for detection; however, the above-mentioned VOC gas detection instruments are generally bulky and inconvenient to carry at any time.

With the development of science and technology, various wearable devices have emerged, which are favored for their portability and versatility, especially smart watches. In addition to indicating the time, smart watches also have information reminders and sports navigation. And the function of monitoring human physiological characteristics such as heart rate and blood oxygen. In view of this, the existing smart watches are improved and optimized to develop a smart watch that detects the concentration of VOC gas in the air.

Utility model content

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a smart watch for detecting the concentration of VOC gas in the air.

In order to achieve the above purpose, the present utility model proposes a smart watch for detecting the concentration of VOC gas in the air, which includes a watch case, a main control circuit board, a battery and a VOC gas sensor. The control circuit board, the battery, and the VOC gas sensor are all arranged in the accommodating cavity, and the main control circuit board is provided with a microprocessor, and the microprocessor is electrically connected with the battery and the VOC gas sensor; the The side wall of one side of the watch case is provided with a detection hole communicating with the accommodating cavity, and the detection end of the VOC gas sensor is fitted in the detection hole.

Preferably, the watch case includes a face cover and a bottom case, the face cover and the bottom case are closed to form the accommodating cavity; the bottom case is a hollow structure with an open upper end, and the inner side of the bottom case is provided with a fixed A bracket, the main control circuit board is fixedly installed on the fixed bracket.

Preferably, a limiting groove is formed on the inner surface of the bottom case, and the VOC gas sensor is accommodated and limited in the limiting groove.

Preferably, the VOC gas sensor includes a sensor main board and a detection end connected to the sensor main board, the detection end is a VOC gas detection probe, the side wall of one side of the bottom case is provided with the detection hole, the The VOC gas detection probe is mounted in the detection hole and protrudes from the outer surface of the bottom case along the detection hole.

Preferably, a sealing rubber ring is provided between the VOC gas detection probe and the inner wall of the detection hole.

Preferably, the main control circuit board is connected with a wireless communication module, and the wireless communication module is connected with an external device for wireless communication.

Preferably, the main control circuit board is further connected with a charging interface, and the charging interface is arranged on the outer surface of the watch case.

Preferably, the smart watch includes a display component, the display component is disposed in the accommodating cavity and is interposed between the face cover and the main control circuit board, and the display component is electrically connected to the main control circuit board.

Preferably, the smart watch further includes a motor, and the motor is arranged on the main control circuit board and is electrically connected to the microprocessor.

Preferably, the smart watch further includes a charging coil, the charging coil is disposed between the main control circuit board and the bottom cover, and is electrically connected to the microprocessor.

Preferably, the cross section of the watch case is circular or rectangular.

The technical scheme of the utility model is to set a VOC gas sensor on the smart watch. After wearing the smart watch, the user can measure the VOC gas in the air through the detection end of the VOC gas sensor and display the measured VOC gas concentration data through the display component. , in order to solve the problem that traditional testing instruments are bulky and inconvenient to carry at any time.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

Fig. 1 is the overall structure diagram of the utility model smart watch;

Fig. 2 is the split structure diagram of the smart watch of the present utility model;

FIG. 3 is a structural diagram of the connection between the VOC gas sensor and the main control circuit board in the smart watch of the present invention.

Description of reference numbers:

label name label name 1 case 11 Cover 2 main control board 12 bottom case 3 Battery 13 Detection hole 4 VOC gas sensor 14 Limit slot 5 display components 15 positioning boss 6 Fixed bracket 40 sensor board 10 accommodating cavity 41 VOC gas detection probe 61 groove

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the difference between the various components under a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

In the present utility model, unless otherwise expressly specified and limited, the terms "connection", "fixed" and the like should be understood in a broad sense, for example, "fixed" can be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, descriptions such as "first", "second", etc. in the present invention are only used for description purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. The meaning of "and/ke" in the whole text is to include three side-by-side schemes. Taking "A and/or B as an example", it includes scheme A, scheme B, or scheme that A and B satisfy at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

VOC is the abbreviation of volatile organic compounds, which are recognized as harmful pollutants. The common ones are benzene, toluene, styrene, ethylene glycol, propylene glycol, ether, acetone, isobutyl nitrite, trichloroethylene, etc. . In the production process of petrochemical industry, paint coating, printing manufacturing, home decoration and other industries, a large amount of polluting VOC gas will be generated, and the VOC gas will be directly discharged into the atmosphere, and the VOC will undergo a photochemical reaction under the action of light, which will lead to photochemical smog The increase of secondary organic aerosols and atmospheric organic acids can destroy the ozone layer, which is an important reason for the formation of haze weather (PM 2.5), and the VOC gas in the air also has certain toxicity, irritation, and carcinogenicity. Excessive inhalation can affect health and be extremely harmful to the human body. In the prior art, for the measurement of VOC gas concentration, it is necessary to use a dedicated VOC gas detection instrument for detection; however, the above-mentioned VOC gas detection instrument is generally bulky, inconvenient to carry at any time, and has a high cost.

With the development of science and technology, various wearable devices have emerged, which are favored because of their portability and versatility, especially smart watches. In addition to indicating the time, smart watches also have information reminders, exercise Navigation and monitoring of human physiological characteristics such as heart rate and blood oxygen. In addition, with the development of chip technology and wireless communication technology, the volume of sensors and processors is gradually reduced, and the data transmission stability and speed of wireless communication are continuously enhanced, which brings a technical basis for the design of micro-miniature MEMS gas sensors. Therefore, the internal structure of the existing smart watch is improved and optimized, and a smart watch that can detect the concentration of VOC gas in the air is developed.

Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a smart watch with a function of detecting the concentration of VOC gas in the air, as shown in FIG. 1 to FIG. 3 , the smart watch includes a watch case 1, a main control circuit Board 2, battery 3 and VOC gas sensor 4; watch case 1 is provided with an accommodation cavity 10, which is used to install the main control circuit board 2, battery 3, VOC gas sensor 4 and electronic components related to the smart watch etc., and the main control circuit board 2 is provided with a microprocessor, and the microprocessor is electrically connected with the battery 3 and the VOC gas sensor 4 . One side of the watch case 1 is provided with a detection hole 13 that communicates with the accommodating cavity 10 , and the detection end of the VOC gas sensor 4 is embedded in the detection hole 13 .

In more detail, as shown in FIGS. 2 and 3 , the overall shape of the watch case 1 in this embodiment is a rectangle, which can also be set to a circular shape, and can also be set to other shapes according to requirements, which is not limited here; The watch case in the example is rectangular. The watch case 1 includes a cover 11 and a bottom case 12. The cover 11 and the bottom case 12 are closed together to form an accommodating cavity 10 for installing electronic components of the smart watch. After the top cover 11 and the bottom case 12 are closed, they can be bonded with waterproof glue to achieve waterproofing between the top cover 11 and the bottom case 12, so that the external moisture will not enter the accommodating cavity 10 and ensure that the electronic Components can work normally and stably. The main control circuit board 2 , the battery 3 and the VOC gas sensor 4 are all arranged in the accommodating cavity 10 .

Further, the bottom case 12 is a hollow structure with an open upper end, the inner side of the bottom case 12 is provided with a fixing bracket 6, the fixing bracket 6 is fixedly installed on the inner surface of the bottom case 12 by screws, and the main control circuit board 2 is fixedly installed on the fixed In the groove 61 opened by the bracket 6; the inner wall surfaces on both sides of the bottom case 12 respectively protrude inward to form positioning bosses 15, the two positioning bosses 15 are parallel to each other, and the battery 3 is erected on the two positioning bosses 15. The boss 15 is placed on top of the cover 11 and the main control circuit board 2 . A limiting groove 42 is formed on the inner surface of the bottom case 12 facing the VOC gas sensor 4 . The VOC gas sensor 4 is accommodated and limited in the limiting groove 14 , and the VOC gas sensor 4 is electrically connected to the main control circuit board 2 . In this embodiment, the VOC gas sensor 4 is directly installed in the limit groove 4, so as to prevent the VOC gas sensor 4 from occupying the installation space of the accommodating cavity 10, improve the utilization rate in the accommodating cavity 10, and thereby reduce the overall volume of the smart watch . In this embodiment, the shape of the limiting groove 42 is adapted to the shape of the VOC gas sensor 4 , and the two adopt an interference fit, so that the VOC gas sensor 4 is accommodated and limited in the limiting groove 14 .

Further, the VOC gas sensor 4 includes a sensor mainboard 40 and a detection end connected to the sensor mainboard 40. The sensor mainboard 40 is accommodated and limited in the limit slot 14; the detection end is VOC gas. The detection probe 41 and the VOC gas detection probe 41 are connected to the sensor main board 40 through a flexible circuit board. In this embodiment, the side wall of the bottom case 12 facing the VOC gas detection probe 41 is provided with a detection hole 13 for embedding the VOC gas detection probe 41 , and the VOC gas detection probe 41 is embedded in the detection hole 13 opened in the bottom case 12 . In addition, the VOC gas detection probe 41 partially protrudes from the outer surface of the bottom case along the detection hole 13 . It can be understood that after wearing the smart watch, the user can detect the VOC gas concentration in the air through the VOC gas detection probe 41 of the VOC gas sensor 4, and convert the VOC gas concentration into an electrical signal and transmit it to the main control circuit 2. The microprocessor is processed, and the measured VOC gas concentration data is displayed through the display component 5 after being processed by the microprocessor. It enables users to detect the badness of air quality, especially to have a trend judgment on the concentration of VOC gas in the air, and make certain protection accordingly to avoid the human body inhaling excessive VOC gas and affecting health.

The specific model used by the VOC gas sensor 4 in this embodiment can be a sensor based on metal oxide materials known to those skilled in the art and used to detect VOC gas; for example, MMD1001E, MMD1013S, MMD1013B of Suzhou Huiwen Nano Technology Co. , MMD1013D and other MEMS gas sensors; Zhengzhou Weisheng Electronic Technology Co., Ltd.'s GM-102B, GM-202B, GM-502B, and other MEMS gas sensors, Shenzhen Daweilai Sensing Technology Development Co., Ltd.'s TP-4, TP-401P Such as MEMS gas sensors, ZM01, GM-502B, GM-202B of Hanwei Technology Group Co., Ltd. and other domestic and foreign MEMS gas sensors. The measurement principle of the VOC gas sensor 4 in this embodiment is to use the MEMS process to make a micro-hot plate on a Si-based substrate, and the gas-sensing material used is a metal oxide semiconductor material with low conductivity in clean air; when VOC When there is a sensitive gas environment at the gas sensor 4, the conductivity of the VOC gas sensor 4 changes with the concentration of the detected gas in the air; the higher the concentration of the gas, the higher the conductivity of the VOC gas sensor 4, the higher the The gas sensor 4 has high sensitivity, is small and precise, and uses the I2C or UART communication interface to output signals, which is convenient for multiple sensors to be networked and observed. There are technologies, so I won't mention them one by one here.

The main invention of the present invention is that the VOC gas sensor 4 is combined with the structure of the smart watch, and the VOC gas sensor 4 is arranged on the smart watch. The VOC gas in the air is measured and the measured VOC gas concentration data is displayed through the display component, so as to solve the problem that the traditional detection instrument is bulky and inconvenient to carry at any time.

In a preferred embodiment, in order to further improve the waterproof effect of the smart watch of the present invention, a sealing rubber ring is filled in the gap between the VOC gas detection probe 41 and the hole wall of the detection hole 13 . Or sealing with silicone grease or the like to prevent perspiration, water or external moisture from invading the detection hole 13 during use, so as to avoid damage to the electronic components in the accommodating cavity 10 .

In a preferred embodiment, the main control circuit board 2 is connected with a wireless communication module (not shown), and the wireless communication module is used for data interaction with smart terminals such as mobile phones and tablet computers. That is, the VOC gas sensor 4 transmits the detected VOC gas concentration signal to the microprocessor, and after being processed by the microprocessor, it can be sent to external communication devices such as mobile phone terminals and tablet computers through the wireless communication module. View relevant measured VOC gas concentration data.

In a preferred embodiment, the main control circuit board 2 is further connected with a charging interface (not shown), and the charging interface is arranged on the outer surface of the watch case 1 . In this embodiment, the charging interface is disposed on the outer surface of the bottom case 12 and connected to the battery 3 , and the user can charge the battery 3 through the charging interface through a data cable or a charging cable.

In a preferred embodiment, the smart watch includes a display assembly 5, the display assembly 5 is arranged in the accommodating cavity 10 and placed between the cover 11 and the main control circuit board 2, the display module 5 except for In addition to the display function of the smart watch about time, date, static or dynamic text, pictures, etc., it can also display the measured VOC gas concentration data. The cover 11 may be a cover made of transparent plastic or glass, which can facilitate viewing of the VOC gas concentration data displayed by the display module 5 through the cover 11 . The cover 11 can also be a touch screen. When the cover 11 is a touch screen and the display module 5 is a display screen, the cover 11 and the display module 5 can be integrated into one body through a screen bonding assembly process.

In a preferred embodiment, the smart watch further includes a motor (not shown), which is arranged on the main control circuit board 2 and is electrically connected to the microprocessor; when VOC gas in the air is detected When the concentration is too high, an early warning can be given by motor vibration to prevent users from inhaling toxic and harmful VOC gas in the air.

The above are only the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Under the inventive concept of the present utility model, any equivalent structural transformations made by using the contents of the present utility model description and accompanying drawings, or directly/ Indirect applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. The intelligent watch is characterized by comprising a watchcase, a main control circuit board, a battery and a VOC gas sensor, wherein a containing cavity is arranged in the watchcase, the main control circuit board, the battery and the VOC gas sensor are arranged in the containing cavity, a microprocessor is arranged on the main control circuit board, and the microprocessor is electrically connected with the battery and the VOC gas sensor; the lateral wall of one side of watchcase seted up with hold the inspection hole of chamber intercommunication, VOC gas sensor's sense terminal inlay in the inspection hole.

2. The smart watch of claim 1, wherein the case comprises a top cover and a bottom cover, the top cover and the bottom cover forming the receiving cavity when combined; the bottom shell is of a hollow structure with an open upper end, a fixing support is arranged on the inner side of the bottom shell, and the main control circuit board is fixedly mounted on the fixing support.

3. The smartwatch of claim 2, wherein the inner surface of the bottom case is formed with a limiting groove, and the VOC gas sensor is received and limited in the limiting groove.

4. The smart watch of claim 3, wherein the VOC gas sensor comprises a sensor main board and a detection end connected with the sensor main board, the detection end is a VOC gas detection probe, the detection hole is formed in a side wall of one side of the bottom case, and the VOC gas detection probe is embedded in the detection hole and extends out of the outer surface of the bottom case along the detection hole.

5. The smart watch of claim 4, wherein a sealing rubber ring is disposed between said VOC gas detection probe and an inner wall of said detection hole.

6. The smartwatch of claim 1, wherein the master control circuit board is connected to a wireless communication module, the wireless communication module being in wireless communication connection with an external device.

7. The smart watch of claim 1, wherein a charging interface is further connected to the main control circuit board, and the charging interface is disposed on an outer surface of the watch case.

8. The smart watch of any one of claims 2 to 7, wherein the smart watch comprises a display component, the display component is disposed in the accommodating cavity and disposed between the face cover and the main control circuit board, and the display component is electrically connected to the main control circuit board.

9. The smart watch of claim 8, further comprising a motor disposed on the master control circuit board and electrically connected to the microprocessor.

10. The smartwatch of any one of claims 1 to 7, wherein the watchcase is circular or rectangular in cross-section.

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