CN210090431U - Gas detection module and gas detector - Google Patents
Gas detection module and gas detector Download PDFInfo
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- CN210090431U CN210090431U CN201920937512.9U CN201920937512U CN210090431U CN 210090431 U CN210090431 U CN 210090431U CN 201920937512 U CN201920937512 U CN 201920937512U CN 210090431 U CN210090431 U CN 210090431U
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Abstract
The embodiment of the application provides a gaseous module and gaseous detector that detects, this gaseous module that detects includes: the gas sensor, the first controller, the first voltage stabilizer and the module interface; the module interface comprises a serial interface and an enabling interface; the gas sensor, the first voltage stabilizer and the serial port interface of the module interface are connected with the first controller; the first voltage stabilizer is also connected with an enabling interface of the module interface; the connecting end of the module interface is used for connecting with an external mainboard; the first controller is used for providing the acquisition signal of the gas sensor to an external mainboard through the module interface; the first voltage stabilizer is used for receiving a power supply enabling signal sent by an external mainboard through the module interface and providing electric energy for the first controller according to the power supply enabling signal.
Description
Technical Field
The application relates to the field of gas detection, in particular to a gas detection module and a gas detector.
Background
For gas detectors, the lifetime of the sensor used to directly detect the electrochemical species in the gas detector is short, typically 1-2 years, whereas in environments where gas leaks are frequent, the lifetime of the sensor is much shorter.
However, if the sensor in the gas detector is to be replaced, the entire gas detector needs to be returned to the manufacturer, and after the manufacturer performs calibration or maintenance processing, the processed gas detector is returned to the user. Meanwhile, in the existing gas detector, when the controller on the mainboard operates normally, other devices on the mainboard all work, and the power consumption is high.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of this application is to provide a gaseous module and gaseous detector that detects to improve the defect that current gaseous detector is not convenient for maintain and the consumption is high.
In a first aspect, an embodiment of the present application provides a gas detection module, the gas detection module includes: the gas sensor, the first controller, the first voltage stabilizer and the module interface;
the module interface comprises a serial interface and an enabling interface;
the gas sensor, the first voltage stabilizer and a serial port interface of the module interface are connected with the first controller;
the first voltage stabilizer is also connected with an enabling interface of the module interface;
the connecting end of the module interface is used for being connected with an external mainboard;
the first controller is used for providing the acquisition signal of the gas sensor to the external mainboard through the module interface;
the first voltage stabilizer is used for receiving a power supply enabling signal sent by the external mainboard through the module interface and providing electric energy for the first controller according to the power supply enabling signal.
Through above-mentioned structure, provide a modularized design's scheme, if form gaseous detector jointly with gaseous detection module and outside mainboard, when the subassembly that is used for gathering gaseous information need be changed, need not to handle whole gaseous detector, only change gaseous detection module can, can simplify the maintenance process to gaseous detector, need not to return whole gaseous detection module to the manufacturer. In addition, the structure provides a structural basis for selective power supply and can reduce power consumption because the power supply enabling signal received by the module interface supplies power to the first controller.
With reference to the first aspect, in one possible design, the first controller has a first memory built therein;
the first memory is used for storing sensor parameters of the gas sensor;
the first controller is used for outputting a digital acquisition signal according to the sensor parameter and the analog acquisition signal of the gas sensor.
Through the structure, the first controller can output digital acquisition signals through the existing sensor parameters, the gas detection module can realize conversion processing of the acquisition signals, the requirement on an external mainboard is reduced, and only some common functional structures need to be integrated on the same external mainboard.
With reference to the first aspect, in one possible design, the gas detection module further includes an amplifier;
the gas sensor is connected with the amplifier, and the amplifier is connected with the first controller.
The signal output by the gas sensor can be amplified by the structure.
With reference to the first aspect, in one possible design, the connection end of the module interface is a probe;
the probe is used for being electrically connected with the external mainboard.
Through the structure, the probe type structure can realize elastic plug connection, can improve the stability between the gas detection module and the external mainboard, and is convenient for replacing the gas detection module.
With reference to the first aspect, in one possible design, the gas detection module further includes a signal plate and a module case;
the gas sensor, the first controller, the first voltage stabilizer and the module interface are arranged on the signal board;
the module shell is arranged on the periphery of the gas sensor in a sleeved mode.
One possible physical structure of the gas detection module is provided by the above structure.
With reference to the first aspect, in one possible design, a gasket is provided between the gas sensor and the module case.
Can promote the waterproof performance of gaseous detection module through above-mentioned structure.
In a second aspect, an embodiment of the present application provides a gas detector, which includes a main board and the gas detection module of the first aspect;
the mainboard is provided with a module connecting port;
the gas detection module is used for being connected with the module connecting port.
Through above-mentioned gas detection appearance, even changed gaseous detection module, also can match new gaseous detection module and mainboard.
With reference to the second aspect, in one possible design, the main board includes a second controller, a display unit;
the second controller is connected with the display unit;
the second controller is used for reading the acquisition signal output by the gas detection module;
and the display unit is used for displaying the information of the detected gas according to the acquisition signal.
Through above-mentioned structure, can detect the information of module output according to the gas and show the gas that is surveyed.
With reference to the second aspect, in one possible design, the motherboard further includes a status indication unit;
the state indicating unit is connected with the second controller and used for outputting a state signal.
Through the structure, the current state of the gas detector can be indicated.
With reference to the second aspect, in one possible design, the motherboard further includes a second voltage regulator and a third voltage regulator;
the second voltage stabilizer is connected with the second controller;
the third voltage stabilizer is connected with the display unit;
the second voltage stabilizer and the third voltage stabilizer are used for being connected with a power supply.
Through the structure, the two voltage stabilizers respectively supply power to the second controller and the display unit. Even if the third voltage stabilizer corresponding to the display unit is turned off, the normal operation of the second controller is not affected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a functional block diagram of a gas detection module according to an embodiment of the present disclosure.
Fig. 2 is a schematic diagram of a gas detection module according to an example provided in the embodiments of the present application.
Fig. 3 is a schematic diagram of a gas detection module according to another example provided by an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a gas detection module according to an embodiment of the present disclosure.
Fig. 5 is a functional block diagram of a gas detector according to an embodiment of the present disclosure.
Fig. 6 is a schematic diagram of a main board according to an embodiment of the present application.
Fig. 7 is a schematic diagram of a motherboard in an example provided by the embodiment of the present application.
Icon: 10-a gas detector; 100-a gas detection module; 110-a gas sensor; 120-a first controller; 130-a first voltage regulator; 140-a module interface; 150-an amplifier; 160-a signal plate; 170-module case; 180-a gasket; 200-a main board; 210-module connection port; 220-a second controller; 230-a display unit; 240-status indication unit; 250-a second voltage regulator; 260-third voltage regulator; 270-function keys; 280-second memory.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
First embodiment
Referring to fig. 1, fig. 1 is a functional block diagram of a gas detection module 100 according to an embodiment of the present disclosure.
The gas detection module 100 includes a gas sensor 110, a first controller 120, a first regulator 130, and a module interface 140.
The connection end of the module interface 140 is used for connecting with an external motherboard 200.
The module interface 140 includes a serial interface and an enable interface.
The module interface 140 may also include a power interface for accessing a specified voltage range, and a power interface for grounding or power sourcing negative. The module interface 140 can be a standard interface for data interaction between the gas detection module 100 and other external components. The appearance and internal communication protocols of each gas detection module 100 may be the same, which is beneficial to improve the versatility of the module. During specific production, only the corresponding gas detection module 100 needs to be developed and stored for one gas to be detected, and the corresponding gas detector 10 complete machine does not need to be designed for each gas to be detected.
In one example, the specified voltage range may be 3V-5V, and the module interface 140 may access 3V, 3.3V, 5V, etc. voltages.
In this embodiment, the serial interfaces of the gas sensor 110, the first voltage stabilizer 130, and the module interface 140 are connected to the first controller 120.
The first voltage regulator 130 is also coupled to an enable interface of the module interface 140.
And the gas sensor 110 is used for collecting the information of the measured gas. The gas sensor 110 may output an analog acquisition signal based on the gas being measured. When the analog acquisition signal is transmitted to the analog-to-digital converter, the analog acquisition signal can be converted into a digital acquisition signal.
The first controller 120 is configured to provide the collected signal of the gas sensor 110 to the external motherboard 200 through the module interface 140. The first controller 120 may be a processor having a low power consumption characteristic. In one example, the first controller 120 can be a processor of the MSP430 series.
In one embodiment, the first controller 120 may obtain a digital collecting signal according to the collecting signal of the gas sensor 110, and provide the digital collecting signal to the external motherboard 200 through the module interface 140.
The first voltage stabilizer 130 is configured to receive a power supply enable signal sent by the external motherboard 200 through the module interface 140, and provide power to the first controller 120 according to the power supply enable signal.
The gas detection module 100 may further include a module power source, and the first voltage stabilizer 130 connected to the module power source may provide power to the first controller 120 when the gas detection module 100 receives the effective power enable signal transmitted from the external motherboard 200 through the module interface 140. Wherein, a specific effective range can be set according to actual needs to determine an effective power supply enable signal, which can represent a signal capable of driving the first voltage regulator 130 to supply power.
The gas detection module 100 can be connected to an external main board 200 to form the gas detector 10. Because the gas detection module 100 is detachably connected to the external main board 200, the gas detector 10 is of a modular design rather than an integrated design, which is more advantageous for replacing the sensor part of the gas detector 10.
In a specific application scenario, if the gas detection module 100 and the external motherboard 200 form the modularized gas detector 10 together, when a sensor part needs to be replaced or maintained, a user can separate the gas detection module 100 from the external motherboard 200 by himself, the separated motherboard 200 can be directly connected with other gas detection modules 100 to form the gas detector 10 again, the whole gas detector 10 does not need to be returned to a manufacturer, and waiting time is shortened. If a user wants to maintain normal gas detection, the user only needs to prepare a single gas detection module 100 as a backup. As long as the module interface 140 of each gas detection module 100 is uniform, no matter which gas detection module 100 is used for detecting which gas, each gas detection module 100 can be connected with the same kind of motherboard 200. When a manufacturer researches and develops a product, only different gas detection modules 100 need to be designed according to specific types of gas to be detected, all the main boards 200 can adopt the same general design, and the research and development period can be shortened; in the production stock stage, stock can be carried out according to the type of the gas detection module 100, so that unnecessary storage of a warehouse can be reduced; in the after-sales maintenance stage, only the gas detection module 100 needs to be maintained or replaced, and the circuit structure of the whole gas detector 10 does not need to be considered, thereby simplifying the maintenance steps.
In addition, the gas detection module 100 and the external motherboard 200 provided in the embodiment of the present application may be regarded as a master-slave power supply relationship, and since the first voltage stabilizer 130 selectively supplies power to the first controller 120 according to the power supply enable signal, the power consumption of the gas detection module 100 provided in the embodiment of the present application is low. The gas detector 10 formed based on the gas detection module 100 can achieve low power consumption detection.
Alternatively, as shown in fig. 2, the first controller 120 is built in with a first memory. The first memory may be a FLASH memory.
The first memory is used to store sensor parameters of the gas sensor 110. The first controller 120 is configured to output a digital acquisition signal based on the sensor parameter and the analog acquisition signal of the gas sensor 110.
The analog acquisition signal may be converted into a digital acquisition signal by an analog-to-digital converter built in the first controller 120, and the digital acquisition signal is sent to the external motherboard 200 through a serial communication interface of a UART (Universal Asynchronous Receiver/Transmitter).
In one example, the Analog-to-Digital Converter may be a 24-bit ADC (Analog-to-Digital Converter).
The sensor parameters stored in the first memory may be different for gas detection module 100 used to detect different types of gases under test.
The sensor parameters may include a sensor identification corresponding to the gas sensor 110, a gas detection parameter. The information about which gas is collected by the gas sensor 110 can be determined by the sensor identification. The gas detection parameters may be necessary parameters for implementing an analog-to-digital conversion process of the acquired signal. The gas detection parameter may be, but is not limited to, rejection drift data, span data, linearization data, and the like.
In other embodiments, the first memory may be an external memory connected to the first controller 120.
Through the above structure, the first controller 120 may output a digital acquisition signal associated with the gas to be detected according to the storage content of the first memory, and the output digital acquisition signal may be sent to the external motherboard 200 through the serial port interface. The gas detection module 100 can realize conversion processing of collected signals, and reduces requirements on the external motherboard 200.
The first controller 120 may also receive configuration data sent by the external motherboard 200 through the serial interface, so as to read and write the content stored in the first memory.
Because the first controller 120 capable of directly outputting the digital acquisition signal exists in the gas detection module 100, the conversion process of the acquired information does not need to depend on the external main board 200, so that all the external main boards 200 can adopt a general design, and the research and development time of the gas detector 10 can be conveniently shortened.
In other embodiments, the analog-to-digital converter may be an external converter connected to the first controller 120 as a possible design. For example, the gas sensor 110 may be connected to the first controller 120 through an external converter. The first controller 120 may convert the digital signal output from the external converter again according to the content stored in the first memory to output a digital acquisition signal in a specified format. Wherein the specified format is related to the actual application requirements.
Optionally, as shown in fig. 3, the gas detection module 100 further comprises an amplifier 150. The gas sensor 110 may be connected to an amplifier 150, and the amplifier 150 is connected to the first controller 120.
The amplifier 150 may have one or more stages. In one example, the current to voltage amplification circuit can be considered as amplifier 150.
The signal output from the gas sensor 110 may be amplified by the amplifier 150.
In one example, the gas sensor 110 transmits the analog acquisition signal to the amplifier 150, and the analog acquisition signal amplified by the amplifier 150 is converted into a numerical signal by a 24-bit differential ADC, resulting in a digital acquisition signal. The first controller 120 converts the numerical signal output by the ADC into a gas concentration value in combination with the relevant parameters of the FLASH memory related to the gas sensor 110, and transmits the gas concentration value to the external motherboard 200 through the UART serial port, so that the external motherboard 200 controls the display device to display and the alarm device to alarm according to the gas concentration value.
The amplifier 150 may also be coupled to a first regulator 130, the first regulator 130 being configured to supply power to the amplifier 150 according to an enable control signal. Therefore, the power consumption can be reduced in a master-slave mode power supply mode.
In this embodiment, the connecting end of the module interface 140 is a probe, for example, a spring contact probe. The probes are used for electrically connecting with the external motherboard 200.
The probe can be inserted into a hole-shaped structure, and the hole-shaped structure can form a containing cavity. The probe can slide in the accommodating cavity in a telescopic manner, one end of the probe extends into or out of the accommodating cavity to be connected with the external motherboard 200, and the other end of the probe is used for wiring to be connected with the first controller 120, the first voltage stabilizer 130 and the power supply. An elastic part is arranged between the probe and the porous structure. Thereby, the elastic plug connection between the gas detection module 100 and the external main board 200 can be realized. Compared with the traditional connection mode of a contact pin and a socket, the elastic plug connection is realized by using the probe, the poor contact phenomenon can be improved, the gas detection module 100 and the external main board 200 can be separated conveniently in a mode of popping out the probe, the replacement process is simple and convenient, the abrasion to the connection part can be reduced, and the service lives of the gas detection module 100 and the gas detector 10 can be prolonged.
In an actual application scenario, after the gas detection module 100 in the gas detector 10 is replaced, the gas detector 10 is restarted, and the external motherboard 200 can identify a new gas detection module 100 and perform gas detection based on the new gas detection module 100.
A metal member may be disposed in the hole structure, and the metal member is connected to the external main board 200. The probes may contact the metal piece of the hole structure to achieve connection with the external main board 200.
In one embodiment, the hole structure may be installed on the external motherboard 200 as the module connection port 210 of the external motherboard 200.
As another embodiment, the hole structure may also be disposed on a housing, the housing is used to fix the gas detection module 100 and the external motherboard 200, a spacer for isolating the gas detection module 100 from the external motherboard 200 may be disposed on the housing, and when the probe passes through the hole structure on the spacer and contacts with the motherboard 200, the connection between the gas detection module 100 and the motherboard 200 is realized.
Optionally, as shown in fig. 4, the gas detection module 100 may further include a signal plate 160 and a module case 170.
The gas sensor 110, the first controller 120, the first voltage stabilizer 130, and the module interface 140 may be mounted on the signal board 160.
The module case 170 is fitted around the gas sensor 110. If the size of the signal plate 160 is smaller than the inner diameter of the module case 170, the module case 170 may be sleeved on the outer peripheries of the gas sensor 110 and the signal plate 160.
The signal plate 160 may include a first signal plate and a second signal plate, which are connected. The first backplate is used to mount the probe-like module interface 140 and the second backplate is used to mount the gas sensor 110. The first voltage stabilizer 130 may be disposed on the first signal board or may be disposed on the second signal board. The module power can be established on first signal board, also can establish on the second signal board.
The end of the module case 170 remote from the gas sensor 110 may be perforated. The through-holes may correspond to gas collection hoods on the housing body of the gas detector 10. Wherein, the gas detection module 100 and the external motherboard 200 can be enclosed by the housing case together. The gas sensor 110 can detect the gas outside the housing through the through hole of the module housing 170 and the gas-collecting hood on the housing.
Can integrate all electrical structures in gaseous detection module 100 through signal plate 160, reduce the module volume, can protect gaseous detection module 100 through module shell 170, avoid gas sensor 110 to influence gaseous the detecting because of striking oscillation effect.
Optionally, a gasket 180 is disposed between the gas sensor 110 and the module case 170. With this waterproof performance that can promote gaseous detection module 100, the life of extension gaseous detection module 100 improves the accuracy that gaseous detected.
Second embodiment
Based on the same concept as the first embodiment, the embodiment of the present application provides a gas detector 10. The gas detecting apparatus 10 includes a main board 200 and a gas detecting module 100 according to the first embodiment.
In this embodiment, as shown in fig. 5, a module connection port 210 is disposed on the motherboard 200. The gas detection module 100 is connected to the module connection port 210.
As an embodiment, if the module interface 140 of the gas detection module 100 is a probe, the inner diameter of the module connection port 210 may match the outer diameter of the module interface 140 of the gas detection module 100.
In another embodiment, if the module connection port 210 has a probe structure and the module interface 140 has a hole structure matching the probe structure, the outer diameter of the module connection port 210 can match the inner diameter of the module interface 140.
Through above-mentioned gas detector 10, be favorable to changing, overhauing gas detection module 100, simplify the maintenance process to gas detector 10, and can reduce the maintenance cost to gas detector 10. In addition, since the gas detection module 100 realizes master-slave power supply according to the enable control signal provided by the motherboard 200, the power consumption of the whole gas detector 10 can be reduced.
Alternatively, as shown in fig. 6, the main board 200 includes a second controller 220 and a display unit 230. The second controller 220 is connected with the display unit 230. The second controller 220 is used for reading the collected signal output by the gas detection module 100, and the display unit 230 is used for displaying the information of the detected gas according to the collected signal.
The second controller 220 may be a processor having a low power consumption characteristic. The second controller 220 may be a different controller than the first controller 120. For example, the second controller 220 may be a processor of the STM32 family.
The display unit 230 may be a liquid crystal display.
Optionally, the motherboard 200 may further include a second voltage regulator 250 and a third voltage regulator 260. The second regulator 250 is connected to the second controller 220, and the third regulator 260 is connected to the display unit 230. The second and third voltage regulators 250 and 260 are used to connect power supplies.
In one example, the power source on motherboard 200 may be a polymer lithium battery.
The second controller 220 and the display unit 230 on the main board 200 can be powered by the second voltage regulator 250 and the third voltage regulator 260, respectively.
Optionally, as shown in fig. 7, the main board 200 may further include a status indication unit 240. The status indication unit 240 is connected to the second controller 220, and the status indication unit 240 is configured to output a status signal. The power state, the instrument failure state, and the alarm state may be indicated by the state indicating unit 240. The status indication unit 240 may include, but is not limited to, a power indicator lamp, a fault indicator lamp, an alarm indicator lamp, a buzzer, and a vibrator.
In the gas detector 10, the main board 200 may display a gas concentration value of the detected gas, and when the concentration value reaches an alarm condition, the main board controls the buzzer, the vibrator and the corresponding indicator lamp to alarm, so as to prompt the user that the current gas concentration exceeds the standard.
Optionally, a second memory 280 is disposed on the motherboard 200, and the second memory 280 is connected to the second controller 220. The second memory 280 may be an EEPROM (Electrically Erasable and Programmable read only memory).
All functional operating parameters of the gas detector 10 may be stored in the second memory 280.
Optionally, a clock circuit may be further disposed on the main board 200, and a time reference of the clock circuit may be determined according to a specifically adopted clock chip. In one example, the clock chip may be DS1302, and in another example, the clock chip may be PCF 8485.
If the wireless communication unit connected to the second controller 220 is disposed on the main board 200, the clock circuit may be omitted, and the wireless communication unit directly receives the clock signal transmitted by the external electronic device, so as to implement time synchronization with the external electronic device.
The current acquisition time can be known by the clock circuit and can be displayed on the display unit 230.
Optionally, a function key 270 may be disposed on the main board 200, and the function key 270 is connected to the second controller 220. The function keys 270 may be menu buttons that can change the display state and the display format of the display unit 230. The function button 270 may be connected to the second voltage stabilizer 250, and the function button 270 may switch the gas detector 10 between a power-on state, a power-off state, and a standby state.
The motherboard 200 may further include a USB (Universal Serial Bus) interface connected to the second controller 220, and the motherboard 200 may be connected to an external electronic device through the USB interface, so that the external electronic device can change and rewrite the application program corresponding to the second controller 220.
Through the gas detector 10, the main board 200 can obtain the gas concentration information output by the gas detection module 100 through the module connection port 210, and display the gas concentration value on the liquid crystal display. When the gas concentration value satisfies the alarm threshold, the status indication unit 240 performs alarm prompt. The main board 200 can read and display other information of the gas detection module 100, including gas type, unit, measurement range, decimal point, etc., besides obtaining the gas concentration value.
Because each main board 200 is not associated with a specific gas type, the main boards 200 have universality, and can be produced in batches, and the corresponding main boards 200 do not need to be separately developed for each gas type, so that the development difficulty is reduced, and the inventory pressure can be reduced.
For other details of the gas detector 10 in this embodiment, please further refer to the related description of the gas detection module 100 provided in the first embodiment, which is not repeated herein.
In the embodiments provided in the present application, the coupling or connection of the devices or units may be electrical, mechanical or other.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A gas detection module, characterized in that, gas detection module includes: the gas sensor, the first controller, the first voltage stabilizer and the module interface;
the module interface comprises a serial interface and an enabling interface;
the gas sensor, the first voltage stabilizer and a serial port interface of the module interface are connected with the first controller;
the first voltage stabilizer is also connected with an enabling interface of the module interface;
the connecting end of the module interface is used for being connected with an external mainboard;
the first controller is used for providing the acquisition signal of the gas sensor to the external mainboard through the module interface;
the first voltage stabilizer is used for receiving a power supply enabling signal sent by the external mainboard through the module interface and providing electric energy for the first controller according to the power supply enabling signal.
2. The gas detection module of claim 1, wherein the first controller has a first memory built therein;
the first memory is used for storing sensor parameters of the gas sensor;
the first controller is used for outputting a digital acquisition signal according to the sensor parameter and the analog acquisition signal of the gas sensor.
3. The gas detection module of claim 1, further comprising an amplifier;
the gas sensor is connected with the amplifier, and the amplifier is connected with the first controller.
4. The gas detection module of claim 1, wherein the connection end of the module interface is a probe;
the probe is used for being electrically connected with the external mainboard.
5. The gas detection module of any one of claims 1-4, further comprising a signal plate, a module housing;
the gas sensor, the first controller, the first voltage stabilizer and the module interface are arranged on the signal board;
the module shell is arranged on the periphery of the gas sensor in a sleeved mode.
6. The gas detection module of claim 5, wherein a gasket is disposed between the gas sensor and the module housing.
7. A gas detector, comprising a main board and the gas detection module of any one of claims 1 to 6;
the mainboard is provided with a module connecting port;
the gas detection module is used for being connected with the module connecting port.
8. The gas detector of claim 7, wherein the main board includes a second controller, a display unit;
the second controller is connected with the display unit;
the second controller is used for reading the acquisition signal output by the gas detection module;
and the display unit is used for displaying the information of the detected gas according to the acquisition signal.
9. The gas detector of claim 8, wherein the main board further comprises a status indication unit;
the state indicating unit is connected with the second controller and used for outputting a state signal.
10. The gas detector of claim 8, wherein the motherboard further comprises a second potentiostat, a third potentiostat;
the second voltage stabilizer is connected with the second controller;
the third voltage stabilizer is connected with the display unit;
the second voltage stabilizer and the third voltage stabilizer are used for being connected with a power supply.
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CN201920937512.9U CN210090431U (en) | 2019-06-20 | 2019-06-20 | Gas detection module and gas detector |
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CN201920937512.9U CN210090431U (en) | 2019-06-20 | 2019-06-20 | Gas detection module and gas detector |
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