CN203771718U - Gas water heater - Google Patents
Gas water heater Download PDFInfo
- Publication number
- CN203771718U CN203771718U CN201420099704.4U CN201420099704U CN203771718U CN 203771718 U CN203771718 U CN 203771718U CN 201420099704 U CN201420099704 U CN 201420099704U CN 203771718 U CN203771718 U CN 203771718U
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- China
- Prior art keywords
- gas
- circuit
- module
- signal
- gas heater
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- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims description 20
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000006233 lamp black Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 113
- 239000002737 fuel gas Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model relates to a gas water heater. The gas water heater comprises a housing, wherein a gas water heater main processing controlling unit is arranged inside the housing and connected with a combustible gas detecting module. The gas water heater is characterized by further comprising a signal transmitter module connected with the combustible gas detecting module, wherein the signal transmitter module is connected with the signal receiving module of an air exhausting mechanism; the signal receiving module of the air exhausting mechanism is connected with an air exhausting mechanism main controlling unit. According to the utility model, compared with the prior art, the gas water heater has the following advantages: when the combustible gas detecting module detects the alarm that the combustible gas is over-proof, the gas valve of the gas water heater is cut off, and meanwhile, the information can be transmitted through the signal transmitter module, therefore, the air exhausting mechanism can be controlled for starting, and the safety protection function can be achieved.
Description
Technical field
The utility model relates to a kind of gas heater.
Background technology
Society, along with the raising of people's living standard, more people has had higher requirement to the safety and comfort of living environment.Fuel gas alarm can carry out immediately sound, light when fuel gas is revealed reports to the police, effective safety of having guaranteed living environment.But, in life, can meet accident unavoidably, as gas-cooker or gas heater there is igniting error, emit pot or wind is gone out, midway flame-out, main valve is not closed tight etc. has just accounted for the major part of gas leakage reason, so the proportion of fuel gas alarm in our life will be more and more heavier.But be only that fuel gas alarm can only play early warning, warning function, cannot really play the function of security protection after reporting to the police.
For this reason, there is at present a kind of gas heater with plug-in CO warning device, when the CO warning device of this gas heater detects CO concentration over-standard, started and report to the police, and automatically cut off the burnt gas valve of gas heater.But this technology, when CO concentration over-standard being detected, cuts off the burnt gas valve of gas heater while being only, make CO concentration no longer continue to increase, but but can not actively gather effective measures, indoor CO is taken away, can not thoroughly solve the rear required function of safety protection of doing of reporting to the police.
Utility model content
Technical problem to be solved in the utility model be for above-mentioned prior art, provide the pernicious gases such as CO in a kind of Control Room effectively to exceed standard and the situation of micro-gas leakage, can also solve exceed standard after by the pernicious gas discharge chambers such as indoor CO.
The technical scheme that the above-mentioned primary technical problem of the utility model solution adopts is: a kind of gas heater, comprise housing, in housing, be provided with gas heater main body processing and control element (PCE), gas heater main control unit is connected with combustible gas detecting module, it is characterized in that: also comprise the signal emission module being connected with combustible gas detecting module, this signal emission module is connected with the signal receiving module of air exhausting device, and the signal receiving module of air exhausting device is connected with air exhausting device main control unit.
As improvement, described lower housing portion is provided with perforation, and described combustible gas detecting module is arranged on described enclosure interior, near described perforation setting, and convenient installation and replacing combustible gas detecting module.
Improve, described combustible gas detecting module and described signal emission module are arranged on same circuit board again, and described signal emission module and signal receiving module are radio frequency transceiving module.
Preferably, described air exhausting device is lampblack absorber or exhaust blower.
Improve again, described combustible gas detecting module comprises combustible gas sensor, filter circuit, A/D change-over circuit, MCU circuit, alarm indication circuit and interface circuit, wherein the output of combustible gas sensor connects the input of filter circuit, the output of filter circuit connects the input of A/D change-over circuit, the output of A/D change-over circuit connects the input of MCU circuit, the first signal output of MCU circuit is connected with alarm indication circuit, the secondary signal output of MCU circuit is connected with gas heater main control unit by interface circuit, the 3rd signal output part of MCU circuit connects signal emission module.
Improve again, in the housing of described hot gas water heater, also comprise the Water heater gas valve control circuit and the draught fan control circuit that are connected with gas heater main control unit.
Preferably, described combustible gas sensor adopts the gas sensor that signal is SB-95-12, MCU circuit adopts the IC chip that model is STM8S003F3, the 2nd pin of gas sensor is connected with 14 pins of IC chip, after connecting the 13 resistance, the 2nd pin of gas sensor is connected with 16 pins of IC chip, after connecting the 14 resistance, the 2nd pin of gas sensor is connected with 15 pins of IC chip, the 3rd pin of gas sensor connects the drain electrode of the 3rd metal-oxide-semiconductor, the source electrode of the 3rd metal-oxide-semiconductor connects the drain electrode of the second metal-oxide-semiconductor, the base stage that connects the first switching tube after source electrode connection the 6th resistance of the second metal-oxide-semiconductor, the colelctor electrode of the first switching tube is connected with 13 pins of IC chip after connecting the 7th resistance, the grid of the second metal-oxide-semiconductor is connected with the colelctor electrode of the first switching tube, the grid of the 3rd metal-oxide-semiconductor is connected with 17 pins of IC chip.
Compared with prior art, the utility model has the advantage of: combustible gas detecting module detects fuel gas and exceeds standard while reporting to the police, can be when cutting off gas valve for gas water heater body, can also carry out information transmission by signal emission module, thereby control the startup of air exhausting device, start the effect of security protection, detection of gas cellular installation is inner at gas heater, do not need secondary installing, can detect the concentration of the fuel gas in gas heater inside and ambient indoor environment, and there is the function with indoor exhaust wind equipment (as lampblack absorber) interlock, can effectively prevent from leaking because of indoor fuel gas the accident causing, really play safety interaction protection, bring more use value to user and society.
Accompanying drawing explanation
Fig. 1 is the perspective view of gas heater in the utility model embodiment;
Fig. 2 is gas heater internal structure schematic diagram in the utility model embodiment;
Fig. 3 is the functional module connection layout of gas heater in the utility model embodiment;
Fig. 4 is the circuit theory diagrams of combustible gas detecting module in the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As Fig. 1, gas heater shown in Fig. 2 and Fig. 3, comprise housing 1, in housing 1, be provided with gas heater main body processing and control element (PCE) 11, described housing 1 bottom is provided with perforation 12, in housing 1, be provided with the combustible gas detecting module 13 being connected with gas heater main body processing and control element (PCE) 11, the signal emission module 14 being connected with combustible gas detecting module 13, the Water heater gas valve control circuit 15 being connected with gas heater main control unit 11 and draught fan control circuit 16, signal emission module 14 is connected with the signal receiving module 21 of air exhausting device 2 outside gas heater, the signal receiving module 21 of air exhausting device 2 is connected with air exhausting device main control unit 22.
In the present embodiment, combustible gas detecting module 13 and described signal emission module 14 are arranged on same circuit board 1-a, it is upper that gas heater main control unit 11, Water heater gas valve control circuit 15 and draught fan control circuit 16 are arranged on same circuit board 1-b, and the combustible gas sensor 131 of combustible gas detecting module 13 arranges through this perforation 12.Described signal emission module and signal receiving module are radio frequency transceiving module.
Aforementioned air exhausting device can be exhaust blower or the ventilating fan of lampblack absorber or indoor location, if the system that need to use the utility model to provide, a radio frequency transceiving module need to be installed in air exhausting device, this radio frequency transceiving module is connected with startup system or the main control unit of air exhausting device.
In the present embodiment, described combustible gas detecting module 13 comprises combustible gas sensor 131, filter circuit 132, A/D change-over circuit 133, MCU circuit 134, alarm indication circuit 135 and interface circuit 136, wherein the output of combustible gas sensor connects the input of filter circuit, the output of filter circuit connects the input of A/D change-over circuit, the output of A/D change-over circuit connects the input of MCU circuit, the first signal output of MCU circuit is connected with alarm indication circuit, the secondary signal output of MCU circuit is connected with gas heater main control unit by interface circuit, the 3rd signal output part of MCU circuit connects signal emission module, shown in Figure 3.Concrete, described combustible gas sensor adopts the gas sensor 131 that signal is SB-95-12, can gather the concentration of CO and CH4 simultaneously, MCU circuit adopts the IC chip U1 that model is STM8S003F3, the concrete structure of filter circuit and A/D change-over circuit is: the 2nd pin of gas sensor 131 is connected with 14 pins of IC chip U1, the 2nd pin of gas sensor 131 is connected with 16 pins of IC chip U1 after connecting the 13 resistance R 13, the 2nd pin of gas sensor 131 is connected with 15 pins of IC chip U1 after connecting the 14 resistance R 14, the 3rd pin of gas sensor 131 connects the drain electrode of the 3rd metal-oxide-semiconductor Q3, the source electrode of the 3rd metal-oxide-semiconductor Q3 connects the drain electrode of the second metal-oxide-semiconductor Q2, the source electrode of the second metal-oxide-semiconductor Q2 connects the base stage of rear connection the first switching tube Q1 of the 6th resistance R 6, the colelctor electrode of the first switching tube Q1 is connected with 13 pins of IC chip U1 after connecting the 7th resistance R 7, the grid of the second metal-oxide-semiconductor Q2 is connected with the colelctor electrode of the first switching tube Q1, the grid of the 3rd metal-oxide-semiconductor Q3 is connected with 17 pins of IC chip U1, the 1st pin of IC chip U1 connects the 9th resistance R 9 afterwards and gas heater main control unit 11, the 11st pin and the signal emission module of IC chip U1 is that the signal input pin of the radio frequency transceiving module in the present embodiment is connected.Shown in Figure 4.
The operation control method of above-mentioned gas heater is:
CO and CH4 concentration in the real-time sensing chamber of combustible gas sensor, 17 of IC chip, 13 pin output pulse signals, through the first switching tube and the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor is controlled gas sensor, gas sensor is experienced the gas concentration in surrounding environment by sensitive material, change the concentration of gas into the signal of telecommunication, exporting change voltage passes to 14 pins of IC chip, 14 pins of IC chip receive after voltage change, by IC chip internal A/D modular converter, carry out A/D conversion, and be converted into actual concentrations numerical value, detect CO or CH4 gas concentration simultaneously and whether surpass corresponding alarm settings concentration, if surpass corresponding alarm settings concentration, export CO or CH4 concentration over-standard alarm signal and show by alarm indication circuit, simultaneously, this CO or CH4 concentration over-standard alarm signal are sent to gas heater main control unit by interface circuit, gas heater main control unit receives after this alarm signal, output control signal is closed the gas valve of gas heater to Water heater gas valve control circuit, and export the blower fan that control signal fan control circuit is opened gas heater, when judging CO or CH4 concentration, IC chip surpasses after corresponding alarm settings concentration, also CO or CH4 concentration over-standard alarm signal are passed to signal emission module, signal emission module by CO or/send to the signal receiving module of air exhausting device to be connected with CH4 concentration over-standard alarm signal, the signal receiving module of air exhausting device receives that combustable gas concentration exceeds standard after alarm signal, this combustable gas concentration alarm signal that exceeds standard is sent to air exhausting device main control unit, air exhausting device main control unit receives this combustable gas concentration and exceeds standard and start air exhausting device master's exhaust system after alarm signal,
In addition, whether IC chip can also detect in real time combustible gas sensor and lose efficacy, if IC chip is never received the concentration signal value of combustible gas sensor in the given time, judge that combustible gas sensor breaks down, now, IC chip is exported combustible gas sensor failure alarm signal and is shown by alarm indication circuit;
In addition, in the present embodiment, gas heater can also be according to gas heater in running order or off working state distinguish control, concrete, when hot gas water heater in running order:
When IC chip judges indoor CO or/and the concentration value of CH4 gas is less than corresponding early warning while setting concentration, by interface circuit, notify gas heater main body processing and control element (PCE), gas heater is normally worked, now air exhausting device does not start;
As indoor CO or/and the concentration value of CH4 gas reaches corresponding early warning while setting concentration, CO is or/and CH4 early warning signal for the output of IC chip, and show by alarm indication circuit, user CO is or/and CH4 early warning in prompting, IC chip is notified gas heater main body processing and control element (PCE) by interface circuit simultaneously, gas heater is normally worked, and now air exhausting device does not start;
As indoor CO or/and the concentration value of CH4 gas while meeting and exceeding corresponding alarm settings concentration, corresponding alarm settings concentration is greater than corresponding early warning and sets concentration herein, CO is or/and CH4 concentration over-standard alarm signal for the output of IC chip, and show by alarm indication circuit, prompting user CO is or/and CH4 warning, IC chip is notified gas heater main body processing and control element (PCE) by interface circuit simultaneously, close the gas valve of gas heater, and export the blower fan that control signal fan control circuit is opened gas heater, discharge CO outward or/and CH4, simultaneously, IC chip is being exported CO or/and in CH4 concentration over-standard alarm signal, also by CO or/and CH4 concentration over-standard alarm signal passes to signal emission module, signal emission module by CO or/and CH4 concentration over-standard alarm signal sends to the signal receiving module of air exhausting device to connect, the signal receiving module of air exhausting device is received CO or/and after CH4 concentration over-standard alarm signal, by CO or/and CH4 concentration over-standard alarm signal sends to air exhausting device main control unit, air exhausting device main control unit receives this CO or/and start air exhausting device master's exhaust system after CH4 concentration over-standard alarm signal, to outdoor discharge CO or/and CH4,
When gas heater is in off working state:
When IC chip judges indoor CO or/and the concentration value of CH4 gas is less than corresponding early warning while setting concentration, by interface circuit, notify gas heater main body processing and control element (PCE), make gas heater keep original duty, now air exhausting device does not start;
As indoor CO or/and the concentration value of CH4 gas reaches corresponding early warning while setting concentration, CO is or/and CH4 early warning signal for the output of IC chip, and show by alarm indication circuit, user CO is or/and CH4 early warning in prompting, IC chip is notified gas heater main body processing and control element (PCE) by interface circuit simultaneously, make gas heater keep original duty, now air exhausting device does not start;
As indoor CO or/and the concentration value of CH4 gas while meeting and exceeding corresponding alarm settings concentration, corresponding alarm settings concentration is greater than corresponding early warning and sets concentration herein, CO is or/and CH4 concentration over-standard alarm signal for the output of IC chip, and show by alarm indication circuit, prompting user CO is or/and CH4 warning, IC chip is notified gas heater main body processing and control element (PCE) by interface circuit simultaneously, make gas heater keep original duty, and export the blower fan that control signal fan control circuit is opened gas heater, discharge CO outward or/and CH4, simultaneously, IC chip is being exported CO or/and in CH4 concentration over-standard alarm signal, also by CO or/and CH4 concentration over-standard alarm signal passes to signal emission module, signal emission module by CO or/and CH4 concentration over-standard alarm signal sends to the signal receiving module of air exhausting device to connect, the signal receiving module of air exhausting device is received CO or/and after CH4 concentration over-standard alarm signal, by CO or/and CH4 concentration over-standard alarm signal sends to air exhausting device main control unit, air exhausting device main control unit receives this CO or/and start air exhausting device master's exhaust system after CH4 concentration over-standard alarm signal, to outdoor discharge CO or/and CH4.
Claims (7)
1. a gas heater, comprise housing, in housing, be provided with gas heater main body processing and control element (PCE), gas heater main control unit is connected with combustible gas detecting module, it is characterized in that: also comprise the signal emission module being connected with combustible gas detecting module, this signal emission module is connected with the signal receiving module of air exhausting device, and the signal receiving module of air exhausting device is connected with air exhausting device main control unit.
2. gas heater according to claim 1, is characterized in that: described lower housing portion is provided with perforation, and described combustible gas detecting module is arranged on described enclosure interior, near described perforation setting.
3. gas heater according to claim 1 and 2, is characterized in that: described combustible gas detecting module and described signal emission module are arranged on same circuit board, and described signal emission module and signal receiving module are radio frequency transceiving module.
4. gas heater according to claim 1, is characterized in that: described air exhausting device is lampblack absorber or exhaust blower.
5. gas heater according to claim 1, it is characterized in that: described combustible gas detecting module comprises combustible gas sensor, filter circuit, A/D change-over circuit, MCU circuit, alarm indication circuit and interface circuit, wherein the output of combustible gas sensor connects the input of filter circuit, the output of filter circuit connects the input of A/D change-over circuit, the output of A/D change-over circuit connects the input of MCU circuit, the first signal output of MCU circuit is connected with alarm indication circuit, the secondary signal output of MCU circuit is connected with gas heater main control unit by interface circuit, the 3rd signal output part of MCU circuit connects signal emission module.
6. gas heater according to claim 5, is characterized in that: also comprise the Water heater gas valve control circuit and the draught fan control circuit that are connected with gas heater main control unit.
7. gas heater according to claim 6, it is characterized in that: described combustible gas sensor adopts the gas sensor that signal is SB-95-12, MCU circuit adopts the IC chip that model is STM8S003F3, the 2nd pin of gas sensor is connected with 14 pins of IC chip, after connecting the 13 resistance, the 2nd pin of gas sensor is connected with 16 pins of IC chip, after connecting the 14 resistance, the 2nd pin of gas sensor is connected with 15 pins of IC chip, the 3rd pin of gas sensor connects the drain electrode of the 3rd metal-oxide-semiconductor, the source electrode of the 3rd metal-oxide-semiconductor connects the drain electrode of the second metal-oxide-semiconductor, the base stage that connects the first switching tube after source electrode connection the 6th resistance of the second metal-oxide-semiconductor, the colelctor electrode of the first switching tube is connected with 13 pins of IC chip after connecting the 7th resistance, the grid of the second metal-oxide-semiconductor is connected with the colelctor electrode of the first switching tube, the grid of the 3rd metal-oxide-semiconductor is connected with 17 pins of IC chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099704.4U CN203771718U (en) | 2014-03-06 | 2014-03-06 | Gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099704.4U CN203771718U (en) | 2014-03-06 | 2014-03-06 | Gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771718U true CN203771718U (en) | 2014-08-13 |
Family
ID=51288904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420099704.4U Expired - Lifetime CN203771718U (en) | 2014-03-06 | 2014-03-06 | Gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203771718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900264A (en) * | 2014-03-06 | 2014-07-02 | 宁波方太厨具有限公司 | Gas water heater and work control method therefore |
-
2014
- 2014-03-06 CN CN201420099704.4U patent/CN203771718U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900264A (en) * | 2014-03-06 | 2014-07-02 | 宁波方太厨具有限公司 | Gas water heater and work control method therefore |
| CN103900264B (en) * | 2014-03-06 | 2016-09-21 | 宁波方太厨具有限公司 | A kind of gas heater and operation control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
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| CX01 | Expiry of patent term |