CN218768356U - CO alarm for generator protection - Google Patents
CO alarm for generator protection Download PDFInfo
- Publication number
- CN218768356U CN218768356U CN202121401705.6U CN202121401705U CN218768356U CN 218768356 U CN218768356 U CN 218768356U CN 202121401705 U CN202121401705 U CN 202121401705U CN 218768356 U CN218768356 U CN 218768356U
- Authority
- CN
- China
- Prior art keywords
- alarm
- control unit
- resistor
- mcu control
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 36
- 230000003321 amplification Effects 0.000 claims description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 11
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a CO alarm is used in generator protection, include: the MCU control unit U2 is used for analyzing and processing signals, is in a deep sleep state when the generator does not operate, and wakes up a working state when the engine enters sleep addition after operating; the CO sensor detection unit U3 is connected with the MCU control unit and is used for converting the CO concentration in the environment into a corresponding electric signal and outputting the corresponding electric signal to the MCU control unit U2 for processing; the alarm prompting unit U4 is connected with the MCU control unit and is used for carrying out alarm prompting and alarm fault prompting on the CO concentration; the rotating speed detection unit U5 is connected with the MCU control unit and is used for acquiring the running state of the generator and simultaneously awakening the MCU control unit U2 to enter a normal working state from a deep sleep state; a flameout control unit U6 connected with the MCU control unit; a battery power supply unit U1.
Description
Technical Field
The utility model belongs to the technical field of the CO alarm, especially, relate to a CO alarm is used in generator protection.
Background
The portable generator is widely applied due to the advantages of small size, mobility, strong adaptability to working environment and the like. However, because the generator drives the magneto to output power through the gasoline engine, a large amount of harmful CO gas can be generated in the use process, and in many household applications, many casualties are caused by neglecting the CO emission problem. Many countries have begun to impose safety requirements on such products for the mandatory installation of CO alarms. In order to adapt to market demands, the utility model provides a CO alarm is used in generator protection.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome prior art not enough, provide a CO alarm is used in generator protection.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a CO alarm for generator protection comprises:
the MCU control unit U2 is used for analyzing and processing signals, is in a deep sleep state when the generator does not operate, and awakens a working state when the engine enters sleep addition after operation;
the CO sensor detection unit U3 is connected with the MCU control unit and is used for converting the CO concentration in the environment into a corresponding electric signal and outputting the corresponding electric signal to the MCU control unit U2 for processing;
the alarm prompting unit U4 is connected with the MCU control unit and is used for carrying out alarm prompting and alarm fault prompting on the CO concentration;
the rotating speed detection unit U5 is connected with the MCU control unit and is used for acquiring the running state of the generator and simultaneously awakening the MCU control unit U2 to enter a normal working state from a deep sleep state;
the flameout control unit U6 is connected with the MCU control unit and is used for turning off the generator to operate when the alarm fails or the CO concentration gives an alarm;
the battery power supply unit U1 is used for providing a working power supply required by the whole CO alarm; when the generator generates excessive CO, the CO concentration in the environment is converted into a corresponding electric signal through the CO sensor detection unit U3 and then is output to the MCU control unit U2 for processing, and the MCU control unit U2 processes the signal and then sends the signal to the alarm prompt unit and the flameout control unit so as to carry out alarm prompt on the CO concentration and simultaneously close the generator to operate, thereby preventing safety accidents.
Preferably, the battery power supply unit comprises a battery BT1 and a capacitor C1.
Preferably, the MCU control unit U2 includes a single chip microcomputer IC1, a capacitor C3, a resistor R6, and a capacitor C4.
Preferably, the CO sensor detection unit U3 includes a sensor polarization prevention circuit, a sensor self-checking circuit, a primary amplification circuit, a sensor J3, a primary filter, an operational amplification unit IC2_2, a secondary amplification circuit, an operational amplification unit IC2_1, and a filter circuit.
Preferably, the alarm prompting unit U4 includes a lamp LED4, a lamp LED3, a resistor R27, and a resistor R28.
Preferably, the rotation speed detection unit U5 includes a normally closed circuit, a resistor R1, a resistor R3, a resistor R4, an external engine igniter flameout module L0_ CO, a diode D1, a triode Q1, an MOS transistor Q2, and a capacitor C10.
Preferably, the flameout control unit U6 includes a switch tube Q1, a resistor R17, a resistor 18, and a capacitor C6.
To sum up, when the generator produced excessive CO, convert the CO concentration in the environment to corresponding signal of telecommunication through CO sensor detecting element U3 and export for MCU the processing of MCU the control unit U2, after MCU the control unit U2 was handled, with signal transmission to warning suggestion unit and flame-out the control unit, and then carry out the warning suggestion to CO concentration, close the generator operation simultaneously to prevent that the incident from taking place.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a circuit configuration diagram of the battery power supply unit U1.
Fig. 3 is a circuit configuration diagram of the MCU control unit U2.
Fig. 4 is a circuit configuration diagram of the CO sensor detection unit U3.
Fig. 5 is a circuit configuration diagram of the alarm prompting unit U4.
Fig. 6 is a circuit configuration diagram of the rotation speed detection unit U5.
Detailed Description
As shown in fig. 1 to 6, a CO alarm for generator protection includes: the gas sensor comprises an MCU control unit U2, a CO sensor detection unit U3, an alarm prompt unit U4, a rotating speed detection unit U5, a flameout control unit U6 and a battery power supply unit U1, wherein the MCU control unit U2 comprises a singlechip IC1, a capacitor C3, a resistor R6 and a capacitor C4, the singlechip IC1 is a singlechip with temperature detection function, can acquire the ambient temperature of the MCU control unit U2 and is used for compensating the change of the gas sensor caused by the temperature change; the capacitor C4 is a filter capacitor and filters the reset pin of the singlechip IC1 through the resistor R4 and the capacitor C4; the capacitor C3 is a filter capacitor.
Specifically, the CO sensor detection unit U3 detects the CO gas concentration and outputs a weak electrical signal, and amplifies and outputs the weak electrical signal to the MCU control unit U2, which includes a sensor anti-polarization circuit, a sensor self-detection circuit, a primary amplification circuit, a sensor J3, a primary filter, a secondary amplification circuit, a capacitor C5, an operational amplification unit IC2_2, a resistor 19, a capacitor C19, and a filter circuit, wherein the sensor anti-polarization circuit is composed of a resistor R9 and a switching tube Q3; the sensor self-checking circuit consists of a resistor R11, a switch tube Q4 and a resistor R21; the primary amplification circuit consists of a resistor R14, a resistor R10, a capacitor C8, a resistor R15 and an operational amplification unit IC2_1, and can amplify an electric signal output by the sensor J3; the capacitor C5 is a filter capacitor, primary filtering can be formed by the resistor R15 and the capacitor C5, the electric signal output by the sensor J3 is amplified by the primary amplifying circuit, primary filtering is formed by the resistor R15 and the capacitor C5, and the electric signal is transmitted to the operational amplifying unit IC2_2; the second-stage amplifying circuit is composed of a resistor R22 and a resistor R23, the filter circuit is composed of a capacitor C18 and a capacitor C19, and is used for filtering the operational amplifying unit IC2_2 and the operational amplifying unit IC2_1, and filtering and inputting the filtering to the AD1 port of the U2 module IC1 through the resistor R19 and the capacitor C17.
Specifically, the alarm prompting unit U4 includes a lamp LED4, a lamp LED3, a resistor R27, and a resistor R28, where the lamp LED4 is a red lamp, and is connected to an I/O4 pin of the single chip microcomputer IC1, and is used for a CO concentration alarm indication, and the CO concentration alarm indication includes a CO concentration peak value alarm indication and a CO concentration mean value alarm indication; the LED3 of the lamp is a yellow lamp which is connected to an I/O3 pin of the singlechip IC1 and is used for module fault alarm indication, and the fault alarm indication comprises battery low-voltage fault indication, alarm high-temperature fault indication, sensor fault indication and the like; the resistor R27 and the resistor R28 are current limiting resistors.
Preferably, the rotation speed detection unit U5 includes a normally closed circuit, a resistor R1, a resistor R3, a resistor R4, an external engine igniter flameout module L0_ CO, a diode D1, a triode Q1, an MOS transistor Q2, and a capacitor C10; the normally closed circuit consists of an MOS (metal oxide semiconductor) tube Q2, a resistor R2, a capacitor C2 and an I/O (input/output) 5 pin of a singlechip IC 1; the resistor R1 is a rotating speed signal pull-up resistor; the resistor R3 is a base current limiting resistor of the triode Q1; the resistor R4 is a pull-down bias resistor of the diode Q1, and the diode Q1 is prevented from being triggered by mistake; the diode D1 prevents the input voltage from reversely flowing into the flameout module L0_ CO of the external engine igniter; the capacitor C10 is a filter capacitor, filters the detected rotating speed signal and inputs the rotating speed signal to an I/O6 pin of the singlechip IC 1.
Specifically, the flameout control unit U6 includes a switching tube Q5, a resistor R17, a resistor 18, and a capacitor C6; the resistor R17 and the switch tube Q5 control an ignition trigger voltage input by an external engine igniter flameout module L0_ CO, and the ignition trigger voltage is directly connected to the ground when flameout is needed, so that the aim of flameout of the igniter is fulfilled; the resistor R18 and the capacitor C6 form a filter circuit to prevent the switch tube Q5 from being triggered by mistake.
Specifically, the battery power supply unit comprises a battery BT1 and a capacitor C1, wherein the battery BT1 is a non-rechargeable battery; and the capacitor C1 is a filter capacitor and is used for filtering the output voltage of the battery.
Claims (7)
1. The utility model provides a CO alarm is used in generator protection which characterized in that includes:
the MCU control unit U2 is used for analyzing and processing signals, is in a deep sleep state when the generator does not operate, and wakes up a working state when the engine enters sleep addition after operating;
the CO sensor detection unit U3 is connected with the MCU control unit and is used for converting the CO concentration in the environment into corresponding electric signals and outputting the electric signals to the MCU control unit U2 for processing;
the alarm prompting unit U4 is connected with the MCU control unit and is used for performing alarm prompting and alarm fault prompting on the CO concentration;
the rotating speed detection unit U5 is connected with the MCU control unit and is used for acquiring the running state of the generator and simultaneously awakening the MCU control unit U2 to enter a normal working state from a deep sleep state;
the flameout control unit U6 is connected with the MCU control unit and is used for turning off the generator to operate when the alarm fails or the CO concentration gives an alarm;
and the battery power supply unit U1 is used for providing a working power supply required by the whole CO alarm.
2. The CO alarm for protecting the generator according to claim 1, wherein: the battery power supply unit comprises a battery BT1 and a capacitor C1.
3. The CO alarm for protecting the generator according to claim 1, wherein: the MCU control unit U2 comprises a singlechip IC1, a capacitor C3, a resistor R6 and a capacitor C4.
4. The CO alarm for protecting the generator according to claim 1, wherein: the CO sensor detection unit U3 comprises a sensor anti-polarization circuit, a sensor self-detection circuit, a primary amplification circuit, a sensor J3, a secondary amplification circuit and a filter circuit.
5. The CO alarm for protecting the generator according to claim 1, wherein: the alarm prompting unit U4 comprises a lamp LED4, a lamp LED3, a resistor R27 and a resistor R28.
6. The CO alarm for protecting the generator according to claim 1, wherein: the rotating speed detection unit U5 comprises a normally closed circuit, a resistor R1, a resistor R3, a resistor R4, an external engine igniter flameout module L0_ CO, a diode D1, a triode Q1, an MOS (metal oxide semiconductor) tube Q2 and a capacitor C10.
7. The CO alarm for protecting the generator according to claim 1, wherein: the flameout control unit U6 comprises a switch tube Q5, a resistor R17, a resistor 18 and a capacitor C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121401705.6U CN218768356U (en) | 2021-06-23 | 2021-06-23 | CO alarm for generator protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121401705.6U CN218768356U (en) | 2021-06-23 | 2021-06-23 | CO alarm for generator protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218768356U true CN218768356U (en) | 2023-03-28 |
Family
ID=85642355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121401705.6U Active CN218768356U (en) | 2021-06-23 | 2021-06-23 | CO alarm for generator protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218768356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117275191A (en) * | 2023-09-22 | 2023-12-22 | 郑竣铭 | Built-in CO monitoring alarm device of fuel vehicle |
-
2021
- 2021-06-23 CN CN202121401705.6U patent/CN218768356U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117275191A (en) * | 2023-09-22 | 2023-12-22 | 郑竣铭 | Built-in CO monitoring alarm device of fuel vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113409554A (en) | CO alarm for battery type generator | |
| CN218768356U (en) | CO alarm for generator protection | |
| CN201302489Y (en) | Temperature alarming device of electric vortex retarder | |
| CN207517157U (en) | A kind of solar energy the wooded mountain fire protection warning device | |
| CN103473872A (en) | Monitoring alarm for bank at night | |
| CN201917998U (en) | Stand-alone anti-explosion alarm for inflammable gas | |
| CN103646489B (en) | Fire alarm installation | |
| CN217300712U (en) | Super-capacitor type CO alarm for generator | |
| CN209842840U (en) | Trace combustible volatile gas detection alarm | |
| US11488463B1 (en) | Co alarm for super capacitance type generator | |
| CN214226088U (en) | Multifunctional alarm | |
| CN102568160A (en) | Independent combustible gas explosion-proof alarm | |
| CN201259497Y (en) | Methane detection and alarm instrument | |
| CN202421789U (en) | Combustible gas leakage protection device | |
| CN201280107Y (en) | Self-ignition alarm device of automotive vehicle | |
| CN208998113U (en) | A kind of security system of combustor | |
| CN204331959U (en) | For the amplifying circuit of infrared detection alarming device | |
| CN208673505U (en) | A kind of intelligent gas monitoring device and circuit | |
| CN2180904Y (en) | Gas self-controller with alarm | |
| CN2258614Y (en) | Gas-leakage dc low-voltage alarm cutting off controller | |
| CN2404117Y (en) | Electronic monitoring water leakage protector | |
| CN214474572U (en) | Intelligent management and control circuit for unattended field operation of transformer substation | |
| CN203055083U (en) | A control circuit of a smoke and flame detector with multiple ionization chambers | |
| CN208124377U (en) | Preventing gas leakage device and gas-cooker | |
| CN2076643U (en) | Ion flame sensing type auto-protector for igniting and putting out fire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312300 Liang Hu Industrial Park, Shangyu District, Shaoxing, Zhejiang Patentee after: Zhejiang Fenglong Technology Co.,Ltd. Country or region after: China Address before: 312300 Liang Hu Industrial Park, Shangyu District, Shaoxing, Zhejiang Patentee before: Shaoxing Yicheng Electric Machinery Co.,Ltd. Country or region before: China |