CN202331727U - Indoor liquefied gas concentration alarm device - Google Patents
Indoor liquefied gas concentration alarm device Download PDFInfo
- Publication number
- CN202331727U CN202331727U CN2011204488868U CN201120448886U CN202331727U CN 202331727 U CN202331727 U CN 202331727U CN 2011204488868 U CN2011204488868 U CN 2011204488868U CN 201120448886 U CN201120448886 U CN 201120448886U CN 202331727 U CN202331727 U CN 202331727U
- Authority
- CN
- China
- Prior art keywords
- liquefied gas
- housing
- gas concentration
- chip microcomputer
- casing
- 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.)
- Expired - Fee Related
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Abstract
An indoor liquefied gas concentration alarm device comprises a casing and a liquefied gas sensor module installed on the casing. A liquid crystal display is arranged in the casing, a single chip microcomputer control module is installed in the casing, an elastic switch is arranged in the casing, and the liquefied gas sensor module and the liquid crystal display are connected with the single chip microcomputer control module. The liquefied gas concentration alarm device can well give out alarm when liquefied gas is leaked, can automatically start an exhaust fan to form convection between indoor air and outdoor air in alarming and effectively avoids toxication accidents caused by leakage of the liquefied gas.
Description
Technical field
The utility model relates to a kind of liquefied gas concentration warning device.
Background technology
Principal ingredient is a carbon monoxide behind rock gas that uses in the daily life and the liquefied gas incomplete combustion, can cause the people to suffocate even death, and annual simultaneously deadly incident happens occasionally because gas leak is poisoned.
Summary of the invention
For solving the problems of the technologies described above; The utility model provides a kind of liquefied gas concentration warning device; Can when gas leak, send warning well; And when reporting to the police, can start the convection current that exhaust fan forms outdoor air and room air automatically, effectively prevent the generation of gas leak poisoning.
The above-mentioned purpose of the utility model is to realize through such technical scheme: liquefied gas concentration warning device; Comprise housing; Be installed in the liquefied gas sensor assembly on the housing, housing is provided with LCD, and enclosure interior is equipped with single chip control module; Housing is provided with elastic switch, and said liquefied gas sensor assembly, LCD are connected with single chip control module.
Said single chip control module is provided with single-chip microcomputer, and single-chip microcomputer connects first relay switch through optocoupler, and first relay switch connects second relay switch.
Housing is provided with supply socket, exhaust fan socket.
Housing is provided with holder.
The liquefied gas sensor assembly adopts MQ-5 liquefied gas sensor.
A kind of liquefied gas concentration of the utility model warning device just can very fast reaction in case gas leak takes place, and its process is that the liquefied gas warning device has detected and leaks when taking place, and just can start exhaust fan simultaneously by activating alarm.
When the measured value of liquefied gas concentration sensor is higher than the concentration of indoor permission; Single-chip microcomputer U1 sends out power on signal will for the light lotus root; First relay switch is closed, and second relay switch loses voltage and jumps to AC 220V mains side automatically and just connect fan, takes a breath to indoor; Single-chip microcomputer U1 just gives an opposite signal when concentration is fallen, and closes fan.
Housing is provided with holder, can fix on the wall.
The liquefied gas sensor assembly adopts MQ-5 liquefied gas sensor, and is highly sensitive, has long-term serviceable life and reliable stability.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the utility model device circuit figure.
Embodiment
As shown in Figure 1; Liquefied gas concentration warning device comprises housing 1, is installed in the liquefied gas sensor assembly 2 on the housing 1; It is characterized in that: housing 1 is provided with LCD 3; Housing 1 inside is equipped with single chip control module, and housing 1 is provided with elastic switch 4, and said liquefied gas sensor assembly 2, LCD 3 are connected with single chip control module.Housing 1 is provided with the elastic switch 4 of fan socket and fan, and the Wiring type supply socket, and housing 1 is provided with holder 5.
Said single chip control module is provided with single-chip microcomputer U1, and single-chip microcomputer U1 connects the first relay switch J1 through optocoupler Q, and the first relay switch J1 connects the second relay switch J2.
Liquefied gas sensor assembly 2 adopts MQ-5 liquefied gas sensor.
The utility model device circuit is as shown in Figure 2, mainly by single chip control module, and liquefied gas sensor assembly 2, LCD 3, elastic switch 4, the first relay switch J1, compositions such as the second relay switch J2.
Single-chip microcomputer U1 is a key control unit, and the liquefactionization signal of sensor is handled, and analyzes in the present air whether gas leak is arranged; And on LCD 3, show current air regime; If air detection just can start relay switch, is opened exhaust fan to carbon monoxide or methane gas are arranged; Housing 1 is provided with and is provided with an elastic switch 4, and the user also can initiate self exhaust fan.
The pin1 port of liquefied gas sensor assembly 2 connects power supply, pin4 port ground connection, and the pin2 port is unsettled, and the P20 end of pin3 port and single-chip microcomputer U1 is connected, and indoor liquefied gas content and concentration value is delivered to single chip control module handles.Capacitor C 1, C2, C3, resistance R 1 and crystal oscillator Y1 constitute the start-oscillation circuit of single-chip microcomputer U1, and capacitor C 1 links to each other with X0, the X1 port of single-chip microcomputer U1 respectively with the end of C2, and the other end of capacitor C 3 links to each other with the Reset port of single-chip microcomputer U1.
10 ~ No. 17 ports of LCD 3 link to each other with P00 ~ P07 end of single-chip microcomputer U1 respectively, constitute the parallel data passage.5 ~ No. 9 ports of LCD 3 link to each other with P10 ~ P14 end of single-chip microcomputer U1 respectively, constitute the control channel of LCD 3.No. 1 port of LCD 3, No. 20 ports link to each other with power supply ground, and No. 2 ports, No. 19 ports connect and power supply VCC.Between power supply VCC and power ground end, add capacitor C 4, C5, C6, guarantee the stable of supply voltage.No. 3 ports of LCD 3 linked to each other the backlight intensity of regulator solution crystal display 3 with No. 18 ports after advancing slide rheostat RP.The P22 of single-chip microcomputer U1 held into the light lotus root Q and the first relay switch J1; The second relay switch J2 connects, and plays the effect of control exhaust fan elastic switch 4, when the measured value of liquefied gas concentration sensor is higher than the concentration of indoor permission; Single-chip microcomputer U1 sends out power on signal will for the light lotus root; First relay switch is closed, and second relay switch loses voltage and jumps to AC 220V mains side automatically and just connect fan, takes a breath to indoor; Single-chip microcomputer U1 just gives an opposite signal when concentration is fallen, and closes fan.
Claims (5)
1. liquefied gas concentration warning device; Comprise housing (1); Be installed in the liquefied gas sensor assembly (2) on the housing (1), it is characterized in that: housing (1) is provided with LCD (3), and housing (1) inside is equipped with single chip control module; Housing (1) is provided with elastic switch (4), and said liquefied gas sensor assembly (2), LCD (3) are connected with single chip control module.
2. according to the said liquefied gas concentration of claim 1 warning device; It is characterized in that: said single chip control module is provided with single-chip microcomputer (U1); Single-chip microcomputer (U1) connects first relay switch (J1) through optocoupler (Q), and first relay switch (J1) connects second relay switch (J2).
3. according to the said liquefied gas concentration of claim 1 warning device, it is characterized in that: said housing (1) is provided with supply socket, exhaust fan socket.
4. according to claim 1 or 3 said liquefied gas concentration warning devices, it is characterized in that: said housing (1) is provided with holder (5).
5. according to the said liquefied gas concentration of claim 1 warning device, it is characterized in that: said liquefied gas sensor assembly (2) adopts MQ-5 liquefied gas sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204488868U CN202331727U (en) | 2011-11-14 | 2011-11-14 | Indoor liquefied gas concentration alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204488868U CN202331727U (en) | 2011-11-14 | 2011-11-14 | Indoor liquefied gas concentration alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202331727U true CN202331727U (en) | 2012-07-11 |
Family
ID=46443699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204488868U Expired - Fee Related CN202331727U (en) | 2011-11-14 | 2011-11-14 | Indoor liquefied gas concentration alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202331727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085004A (en) * | 2019-05-09 | 2019-08-02 | 王亮 | A kind of fuel gas detection alarm self-starting blower fan control system |
-
2011
- 2011-11-14 CN CN2011204488868U patent/CN202331727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085004A (en) * | 2019-05-09 | 2019-08-02 | 王亮 | A kind of fuel gas detection alarm self-starting blower fan control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121114 |