CN207962741U - A kind of kitchen range with detection thermocouple electromotive force function - Google Patents
A kind of kitchen range with detection thermocouple electromotive force function Download PDFInfo
- Publication number
- CN207962741U CN207962741U CN201820173320.0U CN201820173320U CN207962741U CN 207962741 U CN207962741 U CN 207962741U CN 201820173320 U CN201820173320 U CN 201820173320U CN 207962741 U CN207962741 U CN 207962741U
- Authority
- CN
- China
- Prior art keywords
- kitchen range
- thermocouple
- electromotive force
- detection
- main body
- 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
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 84
- 230000003321 amplification Effects 0.000 claims abstract description 39
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims description 8
- 238000012806 monitoring device Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
Abstract
A kind of kitchen range with detection thermocouple electromotive force function, are provided with kitchen range main body and the detection device for detecting thermocouple electromotive force.The kitchen range main body is provided with thermocouple, and detection module and thermocouple are assemblied in kitchen range main body respectively, and thermocouple is electrically connected with detection module and kitchen range main body respectively.The amplification module that the detection device is provided with the comparison module by electromotive force and base value comparison and amplifies comparison result, thermocouple is electrically connected with the detection signal input part of comparison module, the output end of comparison module is electrically connected with the input terminal of amplification module, and the output end of amplification module is electrically connected with kitchen range main body.The kitchen range of the utility model can detect the faint electromotive force of thermocouple, and thermocouple can be made to be provided in the application in other directions of kitchen range may.The faint electromotive force of the thermocouple is amplified to numerical value appropriate by the utility model by detection module, is monitored the flame status of kitchen range in real time by flame monitoring equipment, is substantially increased kitchen range safety.
Description
Technical field
The utility model is related to kitchen range field, more particularly to a kind of kitchen range with detection thermocouple electromotive force function.
Background technology
In existing gas-cooker technology, blowout protection technology is widely used.For the flame-out protection device of gas-cooker, greatly
Part all whether there is abnormal misfire using thermocouple to detect gas-cooker, if abnormal misfire, flame-out protection device is certainly
The dynamic input for blocking fuel gas.Principle is electromotive force to be generated when heated based on thermocouple, but the value of this electromotive force is micro-
It is small and weak, only several millivolts, it can only be used to control the open and close of solenoid valve.Because in the prior art, there is no for
The faint electromotive force of thermocouple is detected, therefore is not applied preferably in kitchen range in the electromotive force of thermocouple,
Such as monitor the behaviour in service of kitchen range.
Therefore in view of the shortcomings of the prior art, providing a kind of existing to solve with the kitchen range for detecting thermocouple electromotive force function
Technical deficiency is very necessary.
Utility model content
The purpose of this utility model is that being provided in place of avoiding the deficiencies in the prior art a kind of with detection thermocouple electricity
The kitchen range of kinetic potential function.The kitchen range can detect the faint electromotive force of thermocouple, and thermocouple can be made in the application in other directions of kitchen range
Possibility is provided.
The above-mentioned purpose of the utility model is realized by following technical measures：
A kind of kitchen range with detection thermocouple electromotive force function are provided, are provided with kitchen range main body and for detecting thermocouple
The detection device of electromotive force.
The kitchen range main body is provided with thermocouple, and detection module and thermocouple are assemblied in kitchen range main body, thermocouple point respectively
It is not electrically connected with detection module and kitchen range main body.
The amplification that the detection device is provided with the comparison module by electromotive force and base value comparison and amplifies comparison result
Module, thermocouple are electrically connected with the detection signal input part of comparison module, the input of the output end and amplification module of comparison module
End electrical connection, the output end of amplification module are electrically connected with kitchen range main body.
Preferably, above-mentioned comparison module is provided with comparator U1A, resistance R2, resistance R4, capacitance C2 and capacitance C5.
The 1 foot serial resistance R2 ground connection of comparator U1A, 1 foot of comparator U1A are also connect with amplification module, comparator U1A
2 foot serial resistance R4 connect with thermocouple, the 2 feet also series capacitance C5 ground connection of comparator U1A, the 3 feet series winding of comparator U1A
Capacitance C2 ground connection, 3 feet of comparator U1A are also connect with power input VCC, and 4 feet and the amplification module of comparator U1A connect
It connects, the 5 feet ground connection of comparator U1A.
Preferably, above-mentioned amplification module is provided with zener diode ZD1, resistance R1, resistance R3, capacitance C1 and capacitance C4.
The 4 foot serial resistance R1 of comparator U1A are connect with 1 foot of comparator U1A, the 4 foot series capacitance C1 of comparator U1A
It is connect with 1 foot of comparator U1A, 4 feet of comparator U1A are also connect with one end of resistance R3, the other end series winding electricity of resistance R3
Hold C4 ground connection, the other end of resistance R3 is connect with the cathode of zener diode ZD1, and the other end of resistance R3 also connects with kitchen range main body
It connects, the plus earth of zener diode ZD1.
Preferably, above-mentioned kitchen range main body is additionally provided with the flame monitoring equipment for monitoring flame status, and flame monitoring
Device is fixedly installed in kitchen range main body, and flame monitoring equipment is electrically connected with the other end of resistance R3.
Preferably, above-mentioned kitchen range main body is additionally provided with solenoid valve, and solenoid valve is fixedly installed in kitchen range main body, and solenoid valve with
Thermocouple is electrically connected.
Preferably, above-mentioned thermocouple is set as two or more.
Preferably, above-mentioned solenoid valve is set as two or more.
Preferably, above-mentioned detection device is set as two or more.
Preferably, above-mentioned flame monitoring equipment is set as two or more.
Flame monitoring equipment, detection device, solenoid valve and thermocouple all correspond.
Preferably, model LM324, LM358 of above-mentioned comparator U1A, uA741, TL081, TL0812, TL0813,
Any one of TL0814 or OP07.
Preferably, model 1N4727,1N4728 of above-mentioned zener diode ZD1,1N4730,1N4731,1N4733,
1N4734、1N4735、1N4736、1N4737、 1N4738、1N4739、1N4744、1N4745、1N4746、1N4748、
Any one of 1N4752,1N4756 or 1N4740.
A kind of kitchen range with detection thermocouple electromotive force function of the utility model, are provided with kitchen range main body and for examining
Survey the detection device of thermocouple electromotive force.The kitchen range main body is provided with thermocouple, and detection module and thermocouple are assemblied in respectively
Kitchen range main body, thermocouple are electrically connected with detection module and kitchen range main body respectively.The detection device is provided with electromotive force and base
The detection signal input part electricity of the amplification module for being worth the comparison module of comparison and amplifying comparison result, thermocouple and comparison module
Connection, the output end of comparison module are electrically connected with the input terminal of amplification module, and output end and the kitchen range main body of amplification module are electrically connected
It connects.The kitchen range of the utility model can detect the faint electromotive force of thermocouple, and thermocouple can be made in the application in other directions of kitchen range
There is provided may.The faint electromotive force of the thermocouple is amplified to numerical value appropriate by the utility model by detection module, passes through fire
Flame monitoring device monitors the flame status of kitchen range in real time, substantially increases kitchen range safety.
Description of the drawings
Fig. 1 is a kind of flow chart with the kitchen range for detecting thermocouple electromotive force function of the utility model.
Fig. 2 is a kind of circuit diagram of the detection module of the kitchen range with detection thermocouple electromotive force function of the utility model.
In Fig. 1 to Fig. 2, include：
Kitchen range main body 1, thermocouple 11, solenoid valve 12, flame monitoring equipment 13,
Detection device 2, comparison module 21, amplification module 22.
Specific implementation mode
The technical solution of the utility model is described further with the following Examples.
Embodiment 1.
A kind of kitchen range with detection thermocouple electromotive force function, as shown in Figure 1, being provided with kitchen range main body 1 and for examining
The detection device 2 of 11 electromotive force of calorimetric galvanic couple；The kitchen range main body 1 is provided with thermocouple 11, and detection module and thermocouple 11 divide
It is not fixedly installed in kitchen range main body 1, thermocouple 11 is electrically connected with detection module and kitchen range main body 1 respectively.
The amplification module that detection device 2 is provided with the comparison module 21 by electromotive force and base value comparison and amplifies electromotive force
22, thermocouple 11 is electrically connected with comparison module 21, and comparison module 21 is electrically connected with amplification module 22, amplification module 22 and kitchen range master
Body 1 is electrically connected.
Comparison module 21 is provided with comparator U1A, resistance R2, resistance R4, capacitance C2 and capacitance C5.The 1 of comparator U1A
Foot serial resistance R2 ground connection, 1 foot of comparator U1A also connects with amplification module 22, the 2 foot serial resistance R4 of comparator U1A and
Thermocouple 11 connects, the 2 feet also series capacitance C5 ground connection of comparator U1A, the 3 foot series capacitance C2 ground connection of comparator U1A, than
3 feet compared with device U1A are also connect with power input VCC, and 4 feet of comparator U1A are connect with amplification module 22, comparator U1A's
5 feet are grounded.
Amplification module 22 is provided with zener diode ZD1, resistance R1, resistance R3, capacitance C1 and capacitance C4.Comparator U1A
4 foot serial resistance R1 connect with 1 foot of comparator U1A, 1 foot of the 4 foot series capacitance C1 and comparator U1A of comparator U1A
Connection, 4 feet of comparator U1A are also connect with one end of resistance R3, the other end series capacitance C4 ground connection of resistance R3, resistance R3
The other end connect with the cathode of zener diode ZD1, the other end of resistance R3 is also connect with kitchen range main body 1, zener diode
The plus earth of ZD1.
The operation principle of the utility model is：Kitchen range generate flame when working, and the variation of temperature is converted by thermocouple 11
Faint electromotive force, thermocouple 11 are connect with the comparison module 21 of detection device 2, by electromotive force and base value and are compared, by contrast
The electromotive force crossed is transmitted to amplification module 22 again, and faint electromotive force is amplified to numerical value appropriate by amplification module 22, amplifies mould
Electromotive force after amplification is transmitted to flame monitoring equipment 13 by block 22, and kitchen range main body 1 can monitor the flame status of kitchen range in real time, and
Flame status is prompted to user.Electromotive force is also transferred to solenoid valve 12 by thermocouple 11 simultaneously, and solenoid valve 12 is made to be always maintained at
It opens.
It should be noted that the thermocouple 11 of the utility model, solenoid valve 12 and flame monitoring equipment 13 are the public affairs of this field
Know that common sense, people from this field can also be selected flexibly as needed.
This has the kitchen range of detection thermocouple electromotive force function, is provided with kitchen range main body 1 and for detecting 11 electricity of thermocouple
The detection device 2 of kinetic potential.The kitchen range main body 1 is provided with thermocouple 1, and detection module 2 and thermocouple 11 are assemblied in kitchen range respectively
Main body 1, thermocouple 11 are electrically connected with detection module and kitchen range main body 1 respectively.The detection device 2 be provided with by electromotive force with
The comparison module 21 of base value comparison and the amplification module 22 for amplifying comparison result, the detection of thermocouple 11 and comparison module 21
Signal input part is electrically connected, and the output end of comparison module 21 is electrically connected with the input terminal of amplification module 22, amplification module 22 it is defeated
Outlet is electrically connected with kitchen range main body 1.The kitchen range of the utility model can detect the faint electromotive force of thermocouple 11, thermocouple can be made to exist
The application in other directions of kitchen range provides may.
Embodiment 2.
A kind of kitchen range with detection thermocouple electromotive force function, other features are identical as example 1, the difference is that,
Kitchen range main body 1 is additionally provided with the flame monitoring equipment 13 for monitoring flame status, and flame monitoring equipment 13 is fixedly installed in
Kitchen range main body 1, flame monitoring equipment 13 are electrically connected with the other end of resistance R3.Kitchen range main body 1 is additionally provided with solenoid valve 12, electromagnetism
Valve 12 is fixedly installed in kitchen range main body 1, and solenoid valve 12 is electrically connected with thermocouple 11.
This has the kitchen range of detection thermocouple electromotive force function, is provided with kitchen range main body 1 and for detecting 11 electricity of thermocouple
The detection device 2 of kinetic potential.The kitchen range main body 1 is provided with thermocouple 1, and detection module 2 and thermocouple 11 are assemblied in kitchen range respectively
Main body 1, thermocouple 11 are electrically connected with detection module and kitchen range main body 1 respectively.The detection device 2 be provided with by electromotive force with
The comparison module 21 of base value comparison and the amplification module 22 for amplifying comparison result, the detection of thermocouple 11 and comparison module 21
Signal input part is electrically connected, and the output end of comparison module 21 is electrically connected with the input terminal of amplification module 22, amplification module 22 it is defeated
Outlet is electrically connected with kitchen range main body 1.The kitchen range of the utility model can detect the faint electromotive force of thermocouple 11, thermocouple can be made to exist
The application in other directions of kitchen range provides may.The utility model puts the faint electromotive force of the thermocouple by detection module 2
It is big that kitchen range safety is substantially increased by the flame status of the real time monitoring kitchen range of flame monitoring equipment 13 to numerical value appropriate.
Embodiment 3.
A kind of kitchen range with detection thermocouple electromotive force function, other features are identical as example 1, the difference is that,
Thermocouple 11 is set as two, and solenoid valve 12 is set as two.Detection device 2 is set as two, and flame monitoring equipment 13 is arranged
It is two.
Flame monitoring equipment 13, detection device 2, solenoid valve 12 and thermocouple 11 all correspond.
It should be noted that the flame monitoring equipment 13 of the present embodiment, detection device 2, solenoid valve 12 and thermocouple 11 can
To be both configured to two, can also be both configured to two with arbitrary positive integer.Depending on specific embodiment is with actual conditions.
This has the kitchen range of detection thermocouple electromotive force function, is provided with kitchen range main body 1 and for detecting 11 electricity of thermocouple
The detection device 2 of kinetic potential.The kitchen range main body 1 is provided with thermocouple 1, and detection module 2 and thermocouple 11 are assemblied in kitchen range respectively
Main body 1, thermocouple 11 are electrically connected with detection module and kitchen range main body 1 respectively.The detection device 2 is provided with electromotive force and base
The amplification module 22 for being worth the comparison module 21 of comparison and amplifying comparison result, the detection signal of thermocouple 11 and comparison module 21
Input terminal is electrically connected, and the output end of comparison module 21 is electrically connected with the input terminal of amplification module 22, the output end of amplification module 22
It is electrically connected with kitchen range main body 1.The kitchen range of the utility model can detect the faint electromotive force of thermocouple 11, thermocouple can be made in kitchen range
Other directions application provide may.The faint electromotive force of the thermocouple is amplified to by the utility model by detection module 2
Numerical value appropriate is monitored in real time the flame status of kitchen range by flame monitoring equipment 13, substantially increases kitchen range safety.
Embodiment 4.
A kind of kitchen range with detection thermocouple electromotive force function, other features are identical as example 1, the difference is that,
The model LM324 of comparator U1A, can also LM358, uA741, TL081, TL0812, TL0813, TL0814 or OP07
Deng any one.
The model 1N4727 of zener diode ZD1, can also 1N4728,1N4730,1N4731,1N4733,
1N4734、1N4735、1N4736、1N4737、1N4738、 1N4739、1N4744、1N4745、1N4746、1N4748、
1N4752,1N4756 or 1N4740 etc. any one.
This has the kitchen range of detection thermocouple electromotive force function, is provided with kitchen range main body 1 and for detecting 11 electricity of thermocouple
The detection device 2 of kinetic potential.The kitchen range main body 1 is provided with thermocouple 1, and detection module 2 and thermocouple 11 are assemblied in kitchen range respectively
Main body 1, thermocouple 11 are electrically connected with detection module and kitchen range main body 1 respectively.The detection device 2 is provided with electromotive force and base
The amplification module 22 for being worth the comparison module 21 of comparison and amplifying comparison result, the detection signal of thermocouple 11 and comparison module 21
Input terminal is electrically connected, and the output end of comparison module 21 is electrically connected with the input terminal of amplification module 22, the output end of amplification module 22
It is electrically connected with kitchen range main body 1.The kitchen range of the utility model can detect the faint electromotive force of thermocouple 11, thermocouple can be made in kitchen range
Other directions application provide may.The faint electromotive force of the thermocouple is amplified to by the utility model by detection module 2
Numerical value appropriate is monitored in real time the flame status of kitchen range by flame monitoring equipment 13, substantially increases kitchen range safety.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model rather than to this practicality
The limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, the common skill of this field
Art personnel, which should be appreciated that, to be modified or replaced equivalently technical solutions of the utility model, new without departing from this practicality
The spirit and scope of type technical solution.
Claims (10)
1. a kind of kitchen range with detection thermocouple electromotive force function, it is characterised in that：It is provided with kitchen range main body and for detecting
The detection device of thermocouple electromotive force；
The kitchen range main body is provided with thermocouple, and detection module and thermocouple are assemblied in kitchen range main body respectively, thermocouple respectively with
Detection module and the electrical connection of kitchen range main body；
The amplification module that the detection device is provided with the comparison module by electromotive force and base value comparison and amplifies comparison result,
Thermocouple is electrically connected with the detection signal input part of comparison module, and the output end of comparison module and the input terminal of amplification module are electrically connected
It connects, the output end of amplification module is electrically connected with kitchen range main body.
2. a kind of kitchen range with detection thermocouple electromotive force function according to claim 1, it is characterised in that：The ratio
Module is provided with comparator U1A, resistance R2, resistance R4, capacitance C2 and capacitance C5,
The 1 foot serial resistance R2 ground connection of comparator U1A, 1 foot of comparator U1A are also connect with amplification module, and the 2 of comparator U1A
Foot serial resistance R4 is connect with thermocouple, the 2 feet also series capacitance C5 ground connection of comparator U1A, the 3 feet series winding electricity of comparator U1A
Holding C2 ground connection, 3 feet of comparator U1A are also connect with power input VCC, and 4 feet of comparator U1A are connect with amplification module, than
5 feet ground connection compared with device U1A.
3. a kind of kitchen range with detection thermocouple electromotive force function according to claim 2, it is characterised in that：It is described to put
Big module is provided with zener diode ZD1, resistance R1, resistance R3, capacitance C1 and capacitance C4,
The 4 foot serial resistance R1 of comparator U1A are connect with 1 foot of comparator U1A, the 4 foot series capacitance C1 of comparator U1A with than
1 foot connection compared with device U1A, 4 feet of comparator U1A are also connect with one end of resistance R3, the other end series capacitance C4 of resistance R3
Ground connection, the other end of resistance R3 are connect with the cathode of zener diode ZD1, and the other end of resistance R3 is also connect with kitchen range main body,
The plus earth of zener diode ZD1.
4. a kind of kitchen range with detection thermocouple electromotive force function according to claim 3, it is characterised in that：The stove
Tool main body is additionally provided with the flame monitoring equipment for monitoring flame status, and flame monitoring equipment is fixedly installed in kitchen range master
Body, flame monitoring equipment are electrically connected with the other end of resistance R3.
5. a kind of kitchen range with detection thermocouple electromotive force function according to claim 4, it is characterised in that：The stove
Tool main body is additionally provided with solenoid valve, and solenoid valve is fixedly installed in kitchen range main body, and solenoid valve is electrically connected with thermocouple.
6. a kind of kitchen range with detection thermocouple electromotive force function according to claim 5, it is characterised in that：The heat
Galvanic couple is set as two or more；
The solenoid valve is set as two or more.
7. a kind of kitchen range with detection thermocouple electromotive force function according to claim 6, it is characterised in that：The inspection
It surveys device and is set as two or more.
8. a kind of kitchen range with detection thermocouple electromotive force function according to claim 7, it is characterised in that：The fire
Flame monitoring device is set as two or more；
Flame monitoring equipment, detection device, solenoid valve and thermocouple all correspond.
9. a kind of kitchen range with detection thermocouple electromotive force function according to claim 8, it is characterised in that：The ratio
Model LM324, LM358, uA741, TL081, TL0812, TL0813, TL0814 or OP07's compared with device U1A is any one
Kind.
10. a kind of kitchen range with detection thermocouple electromotive force function according to claim 9, it is characterised in that：It is described
Model 1N4727,1N4728 of zener diode ZD1,1N4730,1N4731,1N4733,1N4734,1N4735,1N4736,
1N4737,1N4738,1N4739,1N4744,1N4745,1N4746,1N4748,1N4752,1N4756 or 1N4740's appoints
Meaning is a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820173320.0U CN207962741U (en) | 2018-01-31 | 2018-01-31 | A kind of kitchen range with detection thermocouple electromotive force function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820173320.0U CN207962741U (en) | 2018-01-31 | 2018-01-31 | A kind of kitchen range with detection thermocouple electromotive force function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207962741U true CN207962741U (en) | 2018-10-12 |
Family
ID=63736461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820173320.0U Expired - Fee Related CN207962741U (en) | 2018-01-31 | 2018-01-31 | A kind of kitchen range with detection thermocouple electromotive force function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207962741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151082A (en) * | 2018-01-31 | 2018-06-12 | 佛山市云米电器科技有限公司 | A kind of kitchen range for having the function of to detect thermocouple electromotive force |
-
2018
- 2018-01-31 CN CN201820173320.0U patent/CN207962741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151082A (en) * | 2018-01-31 | 2018-06-12 | 佛山市云米电器科技有限公司 | A kind of kitchen range for having the function of to detect thermocouple electromotive force |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101280888B (en) | Indoor gas pipeline leakage protecting method and apparatus | |
| CN205900958U (en) | Intelligent security socket with child protection function | |
| CN205861815U (en) | The detecting system of Simple Low Voltage power distribution network leakage current | |
| CN106052971B (en) | A kind of gas leakage monitoring method and system based on gas metering | |
| CN106097667A (en) | Combustible gas leakage detection method, equipment and combustion gas household electrical appliances | |
| CN207962741U (en) | A kind of kitchen range with detection thermocouple electromotive force function | |
| CN104240449A (en) | Detection alarm | |
| CN106123049A (en) | A kind of gas-cooker with gas leakage alarm defencive function and leakage protecting method thereof | |
| CN109239587A (en) | A kind of thyristor valve test macro based on transparent forwarding | |
| CN208567153U (en) | Earth wire charged testing device and a kind of electric heater | |
| CN212134925U (en) | Non-contact electric leakage detection device | |
| CN204087439U (en) | A kind of detecting alarm | |
| CN108151082A (en) | A kind of kitchen range for having the function of to detect thermocouple electromotive force | |
| CN205580604U (en) | Cubical switchboard temperature measurement early warning system | |
| CN107769158A (en) | A kind of safe leakage protection circuit | |
| CN108224790B (en) | Ground wire live detection device and electric water heater | |
| CN209182952U (en) | Detector for electric fire protection and electric fire monitoring system | |
| Sholihah et al. | Automation of occupational safety and health (K3) electricity based on internet of things (IoT) | |
| CN206039210U (en) | Remote monitoring system for boiler | |
| CN106292398A (en) | A kind of control device for box of electric energy meter | |
| CN108006984A (en) | Detect the anti-electric brake and gas heater of gas leakage | |
| CN207036196U (en) | Intelligent gas meter | |
| CN207778825U (en) | The power plug arrangement and gas-fired equipment of gas-fired equipment | |
| CN107091965A (en) | A kind of electric power electric safe distribution of electric power detection means of anticreep auto-alarm function | |
| CN206338952U (en) | Water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |