Expiration type hydrogen detector

Abstract

The utility model discloses an expiration type hydrogen detector, including: shell component, master control module, and power supply module, sensor module, bluetooth module and indicator light module that are respectively electrically connected with the master control module, the master control module includes master control MCU, master control MCU is 8 bit processor, the power supply module includes: battery, the battery is connected with the sensor module, the bluetooth module is connected with the indicator light module, the battery is connected with the sensor module, the bluetooth module is connected with the indicator light module. The battery is electrically connected with the shell assembly, the voltage stabilizing circuit and the charging circuit are electrically connected with the battery, the sensor module comprises a sensor circuit and an operational amplifier circuit electrically connected with the sensor circuit, the sensor module is used for realizing hydrogen detection, and the shell assembly comprises a main shell and a blowing nozzle shell. According to the utility model, the whole circuit structure is simple, the cost is lower, the arrangement position of the hydrogen sensor in the blowing detection cavity is more scientific, the data accuracy is ensured, and the use requirements can be well met.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaled gas detectors, in particular to an exhaled hydrogen gas detector. Background Art

[0002] At present, the existing exhaled hydrogen gas detectors have problems such as high cost and inaccurate test results caused by the unscientific setting position of sensors, and cannot well meet the usage requirements of people.

[0003] Therefore, the existing technology has defects and needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome at least some deficiencies of the existing technology, meet broader usage requirements, and provide an exhaled hydrogen gas detector.

[0005] The technical solution of the utility model is as follows: The utility model provides an exhaled hydrogen gas detector, including: a housing assembly, a main control module, and a power module, a sensor module, a Bluetooth module, and an indicator light module that are respectively electrically connected to the main control module. The main control module includes a main control MCU, and the main control MCU is an 8-bit processor. The power module includes: a battery, a voltage stabilizing circuit and a charging circuit that are respectively electrically connected to the battery. The sensor module includes a sensor circuit and an operational amplifier circuit that is electrically connected to the sensor circuit. The sensor module is used to realize hydrogen gas detection. The housing assembly includes: a main housing and a nozzle housing. An air blowing detection cavity and a component accommodation cavity are formed inside the housing assembly. The air blowing detection cavity is located inside the nozzle housing. An air blowing hole and a plurality of air outlet holes that are both connected to the air blowing detection cavity are formed on the nozzle housing. The air blowing hole is located at one end of the housing assembly. A partition structure is formed inside the nozzle housing to separate the air blowing detection cavity and the component accommodation cavity. The partition structure includes: a first vertical plate, a horizontal plate and a second vertical plate. The first vertical plate and the second vertical plate are vertically arranged. The horizontal plate is horizontally arranged corresponding to the position of the air outlet holes. Both sides of the horizontal plate are respectively connected to the first vertical plate and the second vertical plate. An installation hole is formed on the horizontal plate. Installation columns are formed on both sides of the installation hole. The hydrogen gas sensor in the sensor module is arranged at the installation hole through the installation columns.

[0006] Furthermore, a light guide ring is also provided between the nozzle housing and the main housing. A plurality of light guide holes are formed on the housing assembly. The light guide ring is arranged on the housing assembly corresponding to covering the light guide holes. At least one indicator light of the indicator light module is arranged at the light guide holes.

[0007] Furthermore, the model of the main control MCU is FT61F145-TRB.

[0008] Further, it also includes a key module, and the key module is electrically connected to the main control module.

[0009] Further, the main control module further includes a programming interface, and the programming interface is electrically connected to the main control MCU.

[0010] Adopting the above solution, the beneficial effects of the present utility model are as follows: The overall circuit structure is concise, the cost is low, the installation position of the hydrogen sensor in the blowing detection cavity is more scientific, ensuring the accuracy of data and well meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the circuit structure framework diagram of the present utility model.

[0012] Figure 2A and Figure 2B is the circuit diagram of the main control module of the present utility model.

[0013] Figure 3A and Figure 3B is the circuit diagram of the sensor module of the present utility model.

[0014] Figure 4A and Figure 4B is the circuit diagram of the power supply module of the present utility model.

[0015] Figure 5 is the circuit diagram of the Bluetooth module of the present utility model.

[0016] Figure 6A and Figure 6B is the circuit diagram of the indicator light module of the present utility model.

[0017] Figure 7 is the structural schematic diagram of the housing assembly of the present utility model Figure 1 .

[0018] Figure 8 is the second structural schematic diagram of the housing assembly of the present utility model.

[0019] Figure 9 is the third structural schematic diagram of the housing assembly of the present utility model.

[0020] Figure 10 is Figure 9 the cross-sectional view at A-A in

[0021] Figure 11 is the structural schematic diagram of the blowing nozzle housing of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be described in detail below with reference to the drawings and specific embodiments.

[0023] Please refer to Figures 1 to 11 In this embodiment, the present utility model provides an exhaled hydrogen detector, which includes: a housing assembly, a main control module, and a power module, a sensor module, a Bluetooth module, and an indicator module that are respectively electrically connected to the main control module.

[0024] Please refer to Figure 2A and Figure 2B The main control module includes a main control MCU U4 and a programming interface. The programming interface CN1 is electrically connected to the main control MCU U4. The main control MCU U4 is selected as an 8-bit processor, which can save costs. The specific model in this embodiment is: FT61F145-TRB. The main control module is used for data processing and controlling the operation of the detector.

[0025] Please refer to 4A and Figure 4B The power module includes: a battery, a voltage stabilizing circuit and a charging circuit that are respectively electrically connected to the battery. The power module is used to provide power for the operation of the detector.

[0026] Please refer to Figure 3A and Figure 3B The sensor module includes a sensor circuit and an operational amplifier circuit that is electrically connected to the sensor circuit. The sensor module is used to achieve hydrogen detection. The data detected in the sensor circuit is amplified and processed by the operational amplifier circuit and then sent to the main control module. The sensor adopted is the latest MEMS process, with a solid structure and good seismic resistance. Compared with the existing electrochemical and semiconductor hydrogen sensors, it has the advantages of low power consumption, high measurement accuracy, small size, high sensitivity, fast response and recovery, simple drive circuit, good stability, and long service life.

[0027] Please refer to Figure 5 The Bluetooth module is used to achieve Bluetooth communication between the detector and external devices such as mobile phones and tablets.

[0028] Please refer to Figure 6A and 6B The indicator module includes several indicators, which can be used as Bluetooth indicators, switch status indicators, result indicators, etc. to achieve an indication function.

[0029] Furthermore, the detector further includes a button module, and the button module is electrically connected to the main control module to achieve a switch function.

[0030] When working, the sensor module detects the hydrogen concentration and sends the data to the main control module. The main control module can process the data, send the data through the Bluetooth module, or compare it with the concentration standard to determine whether it exceeds the standard, and achieve indication through the indicator module.

[0031] Please refer to Figures 7 to 11 The housing assembly includes: a main housing 2 and a mouthpiece housing 1. A blow detection cavity and a component accommodating cavity are formed in the housing assembly. The blow detection cavity is located in the mouthpiece housing 1 for gas detection to avoid interference. The component accommodating cavity can accommodate components such as a mainboard and a battery. The nozzle housing 1 is provided with a blowing hole 11 and a plurality of air outlet holes 12, both of which are connected to the blowing detection cavity. The blowing hole 11 is located at one end of the housing assembly. A partition structure is formed in the nozzle housing 1 to separate the blowing detection cavity and the component accommodating cavity. The partition structure includes: a first vertical plate 13, a horizontal plate 14 and a second vertical plate 15. The first vertical plate 13 and the second vertical plate 15 are vertically arranged, and the horizontal plate 14 is horizontally arranged corresponding to the position of the air outlet hole 12. Both sides of the horizontal plate 14 are respectively connected to the first vertical plate 13 and the second vertical plate 15. A mounting hole 17 is formed on the horizontal plate 14. Mounting columns 16 are formed on both sides of the mounting hole 17. The hydrogen sensor in the sensor module is arranged at the mounting hole 17 through the mounting columns 16. When the inspector performs a blow test, the gas enters from the blow nozzle 11, passes through the blow test cavity, and is blown out from the air outlet 13. The structural setting of this scheme can not only ensure the independence of the blow test cavity, but also the setting position of the hydrogen sensor is more scientific, which can achieve a more accurate detection effect.

[0032] Furthermore, a light guide ring 3 is provided between the mouthpiece housing 1 and the main housing 2, and a plurality of light guide holes 18 are provided on the housing assembly. The light guide ring 3 is provided on the housing assembly to cover the light guide holes 13. At least one indicator light of the indicator light module is provided at the light guide hole 18, and the light emitted by the indicator light can be transmitted through the light guide ring 3. This structural design makes the indication more beautiful, and the light of the light guide ring can be observed intuitively to obtain information when blowing.

[0033] In summary, the beneficial effects of this solution are: the overall circuit structure is streamlined, the cost is low, the setting position of the hydrogen sensor in the air blowing detection chamber is more scientific, the accuracy of the data is guaranteed, and it can well meet the use requirements.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A breath hydrogen detector, characterized in that: include: A shell assembly, a main control module, and a power module, a sensor module, a Bluetooth module and an indicator light module electrically connected to the main control module respectively. The main control module includes a main control MCU, which is an 8-bit processor. The power module includes: a battery, a voltage stabilizing circuit and a charging circuit electrically connected to the battery respectively. The sensor module includes a sensor circuit and an operational amplifier circuit electrically connected to the sensor circuit. The sensor module is used to realize hydrogen detection. The shell assembly includes: a main shell and a mouthpiece shell. A blowing detection cavity and a component accommodating cavity are formed in the shell assembly. The blowing detection cavity is located in the mouthpiece shell. The nozzle shell is provided with a blowing hole and a plurality of air outlet holes, both of which are connected to the blowing detection cavity. The blowing hole is located at one end of the shell assembly. A partition structure is formed in the nozzle shell to separate the blowing detection cavity and the component accommodating cavity. The partition structure includes: a first vertical plate, a horizontal plate and a second vertical plate. The first vertical plate and the second vertical plate are vertically arranged. The horizontal plate is horizontally arranged corresponding to the position of the air outlet hole. Both sides of the horizontal plate are respectively connected to the first vertical plate and the second vertical plate. A mounting hole is formed on the horizontal plate. Mounting columns are formed on both sides of the mounting hole. The hydrogen sensor in the sensor module is arranged at the mounting hole through the mounting columns.

2. The breath hydrogen detector according to claim 1, characterized in that: A light guide ring is further provided between the nozzle shell and the main shell, and a plurality of light guide holes are provided on the shell assembly. The light guide ring is provided on the shell assembly to cover the light guide holes accordingly, and at least one indicator light of the indicator light module is provided at the light guide hole.

3. The breath hydrogen detector according to claim 1 or 2, characterized in that: The model of the main control MCU is FT61F145-TRB.

4. The breath hydrogen detector according to claim 1 or 2, characterized in that: It also includes a key module, which is electrically connected to the main control module.

5. The breath hydrogen detector according to claim 1 or 2, characterized in that: The main control module also includes a burning interface, and the burning interface is electrically connected to the main control MCU.

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