CN209432911U - Gas equipment battery power prompt system and gas equipment - Google Patents
Gas equipment battery power prompt system and gas equipment Download PDFInfo
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- CN209432911U CN209432911U CN201821407469.7U CN201821407469U CN209432911U CN 209432911 U CN209432911 U CN 209432911U CN 201821407469 U CN201821407469 U CN 201821407469U CN 209432911 U CN209432911 U CN 209432911U
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- 238000001514 detection method Methods 0.000 claims abstract description 58
- 230000005611 electricity Effects 0.000 claims description 28
- 238000005259 measurement Methods 0.000 claims description 18
- 238000010304 firing Methods 0.000 claims description 14
- 230000001939 inductive effect Effects 0.000 claims description 12
- 239000007789 gas Substances 0.000 abstract description 7
- 239000002737 fuel gas Substances 0.000 abstract 1
- 239000000567 combustion gas Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010892 electric spark Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides a gas equipment battery power reminder system and gas equipment. The fuel gas equipment battery power prompting system comprises a pulse igniter. The pulse igniter comprises an ignition circuit for ignition; the battery electric quantity detection circuit is used for detecting the electric quantity of a battery for supplying power to the pulse igniter; the reminder is used for sending out a reminding signal; and the controller is respectively connected with the ignition circuit, the battery electric quantity detection circuit and the reminder and is used for controlling the reminder to send out a reminding signal when the electric quantity of the battery detected by the battery electric quantity detection circuit is lower than a threshold value. The utility model discloses a gas equipment battery power reminder system and gas equipment can remind when battery power is lower.
Description
Technical field
The utility model relates generally to kitchen and bath's household electrical appliances more particularly to a kind of gas-fired equipment battery capacity prompt system and combustion
Gas equipment.
Background technique
Gas-cooker generally includes the pipeline realized the burner of burning, provide combustion gas for burner, controls combustion gas on-off
Electrically-controlled valve, the thermocouple for maintaining electrically-controlled valve to open and the pulse igniter for realizing igniting.The flame of burner heats thermocouple
Afterwards, thermocouple can generate potential difference, and form electric current in the circuit that thermocouple and electrically-controlled valve are constituted.The electric current can make electrically-controlled valve
It opens and maintains with opening state.When user presses the knob on gas-cooker, pulse igniter exports high-voltage pulse signal
To ignition electrode, forms electric spark and realize igniting.Pulse igniter needs battery to power for it.With the use of gas-cooker, battery
Electricity can gradually decrease, and when battery capacity reduces to a certain extent, will lead to pulse igniter can not work, and cannot achieve and beat
Fire.At this point, there are many users to will mistakenly believe that gas-cooker damage, and contact producer's request after-sale service.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of gas-fired equipment battery capacity prompt system and combustion gas
Equipment can be reminded when battery capacity is lower.
In order to solve the above technical problems, the one side of the utility model provides a kind of gas-fired equipment battery capacity prompt system
System, including pulse igniter, the pulse igniter include: the firing circuit for igniting；Battery power detection circuit is used for
It is detected as the electricity of the battery of the pulse igniter power supply；Reminiscences, for issuing alerting signal；And controller, with institute
It states firing circuit, the battery power detection circuit and the reminiscences to be separately connected, for detecting electricity in the battery capacity
When the electricity for the battery that road detects is lower than threshold value, controls the reminiscences and issue alerting signal.
In an embodiment of the utility model, the battery power detection circuit includes current measurement sub-circuit, described
Current measurement sub-circuit is for measuring the driving current value that the battery is supplied to electrically-controlled valve.
In an embodiment of the utility model, the controller is when the driving current value is lower than first threshold, control
It makes the reminiscences and issues alerting signal；Wherein, the first threshold is to be exported according to the setting battery to described automatically controlled
One ratio value of the current value of valve.
In an embodiment of the utility model, the battery power detection circuit includes voltage measurement sub-circuit, described
Voltage measurement sub-circuit is used to measure the voltage value of the battery.
In an embodiment of the utility model, the controller controls institute when the voltage value is lower than second threshold
It states reminiscences and issues alerting signal；Wherein, the second threshold is a ratio value of the nominal voltage of the battery.
In an embodiment of the utility model, pulse igniter further includes for detecting in burner with the presence or absence of flame
Flame detection circuit；The flame detection circuit is connect with the controller；The controller is in the flame detection circuit
When detecting the presence of flame, the battery is controlled as electrically-controlled valve power supply.
In an embodiment of the utility model, the controller when flame is not detected in the flame detection circuit,
It controls the battery and stops being that the electrically-controlled valve is powered.
In an embodiment of the utility model, the flame detection circuit includes ion inductive needle.
In an embodiment of the utility model, the reminiscences includes one of buzzer, display screen and indicator light
Or it is a variety of.
The another aspect of the utility model provides a kind of gas-fired equipment, comprising: burner；Electrically-controlled valve is set to described
On the steam line of burner；And gas-fired equipment battery capacity prompt system as described above.
Compared with prior art, the utility model has the advantage that
The pulse igniter, gas-fired equipment of the utility model have battery power detection circuit, are able to detect the electricity of battery
Whether amount is lower than threshold value, and when the electricity of battery is lower than threshold value, is issued and reminded by reminiscences, user is reminded to replace battery,
Avoid causes user to be mistakenly considered combustion apparatus damage because battery capacity is low.
Detailed description of the invention
Fig. 1 is the basic block diagram of the pulse igniter of some embodiments of the utility model.
Fig. 2 is the schematic block diagram of the battery power detection circuit of some embodiments of the utility model.
Fig. 3 is the schematic block diagram of the battery power detection circuit of some embodiments of the utility model.
Fig. 4 is the schematic block diagram of the reminiscences of some embodiments of the utility model.
Fig. 5 is the basic block diagram of the gas-fired equipment of some embodiments of the utility model.
Fig. 6 is the basic block diagram of the gas-fired equipment of some embodiments of the utility model.
Specific embodiment
It is practical to this below in conjunction with attached drawing for the above objects, features, and advantages of the utility model can be clearer and more comprehensible
Novel specific embodiment elaborates.
Many details are explained in the following description in order to fully understand the utility model, but this is practical new
Type can also be implemented using other different from other way described herein, therefore the utility model is not by following public tool
The limitation of body embodiment.
As shown in the application and claims, unless context clearly prompts exceptional situation, " one ", "one", " one
The words such as kind " and/or "the" not refer in particular to odd number, may also comprise plural number.It is, in general, that term " includes " only prompts to wrap with "comprising"
Include clearly identify the step of and element, and these steps and element do not constitute one it is exclusive enumerate, method or apparatus
The step of may also including other or element.
It is referred to as " on the other element " it should be appreciated that working as an element, " being connected to another element ", " is coupled in
When another element " or " contacting another element ", it can directly on another element, be connected or coupled to,
Or another element is contacted, or may exist insertion element.In contrast, when an element is referred to as " directly another
On a element ", " being directly connected in ", " being coupled directly to " or when " directly contact " another element, insertion element is not present.Together
Sample, when first element referred to as " is in electrical contact " or " being electrically coupled to " second element, in the first element and this second yuan
There is the power path for allowing electric current flowing between part.The power path may include capacitor, the inductor of coupling and/or permission electricity
Other elements of flowing, or even do not contacted directly between conducting element.
A kind of gas-fired equipment battery capacity prompt system is disclosed in some embodiments of the utility model, it can be right
Electricity for the battery of gas-fired equipment power supply is prompted.The gas-fired equipment battery capacity prompt system includes pulse igniter.
Fig. 1 is the basic block diagram of the pulse igniter of some embodiments of the utility model.Refering to what is shown in Fig. 1, pulse point
Firearm 10 may include firing circuit 11, battery power detection circuit 12, reminiscences 13 and controller 14.Firing circuit 11, electricity
Pond electric quantity detecting circuit 12 and reminiscences 13 are connect with controller 14 respectively.Battery 100 can provide electricity for pulse igniter 10
Source.Specifically, battery 100 can be in firing circuit 11, battery power detection circuit 12, reminiscences 13 and controller 14
At least one provides power supply.Battery 100 is one of such as may include dry cell, lithium battery, nickel-metal hydride battery or a variety of.
Firing circuit 11 is for lighting a fire to combustion gas.In some embodiments, firing circuit 11 is by generating high-tension pulse
Signal is rushed, and is set the igniting needle-discharging near burner and generates electric spark to realize igniting.
Battery power detection circuit 12 is used to be detected as the electricity for the battery 100 that pulse igniter 10 provides power supply.Work as electricity
When pond electric quantity detecting circuit 12 detects the electricity of battery 100 lower than threshold value, alerting signal can be issued by reminiscences 13.It should
Threshold value can be 10%, 5%, 3% etc. of the nominal electricity of battery 100.The alerting signal that reminiscences 13 issues can be the sense of hearing
Signal, visual signal, haptic signal etc..
Fig. 2 is the schematic block diagram of the battery power detection circuit of some embodiments of the utility model.Refering to what is shown in Fig. 2,
Battery power detection circuit 12 may include current measurement sub-circuit 12a.Current measurement sub-circuit 12a is for measuring battery 100
It is supplied to the driving current value of electrically-controlled valve.The driving current that battery 100 is supplied to electrically-controlled valve is measured in current measurement sub-circuit 12a
After value, controller 14 can compare the driving current value and first threshold, to determine whether reminiscences 13 issues alerting signal.Tool
For body, when the driving current value is less than first threshold, determine that reminiscences 13 issues alerting signal；When the driving current value is big
When first threshold, determine reminiscences 13 without issuing alerting signal.In some embodiments, which can be with
To be exported according to setting battery 100 to a ratio value of the current value of electrically-controlled valve (such as 10 milliamperes (mA), 2 milliamperes etc.).?
In some embodiments, the size of the current value of the setting can be controlled by controller 14.
The principle of battery power detection circuit 12 shown in Fig. 2 is briefly described below.When electrically-controlled valve maintains
Opening state needs the first electric current, such as 10mA, and controller 14 can provide the first electric current to electrically-controlled valve using battery 100.But work as
When the electricity of battery 100 is lower than threshold value, battery 100 can not provide the first electric current, and battery 100 is only capable of providing lower than the first electric current
The second electric current.Therefore, if the battery 100 that current measurement circuit 12a is measured is supplied to the driving current value of electrically-controlled valve lower than the
When one electric current (i.e. first threshold), that is, it can determine that the electricity of battery 100 already below threshold value.Of course, it is possible to set first threshold
It is 95%, 90%, 80%, 60% etc. of a ratio value of the first electric current, such as the first electric current.
Battery power detection circuit 12 shown in Fig. 2 is wanted by comparing reality output to the electric current of electrically-controlled valve and according to setting
It exports to the electric current of electrically-controlled valve (or its ratio value) and determines whether battery is in low battery state.Due to shown in Fig. 2
Battery power detection circuit 12 is to detect battery capacity by electric current, can more accurately determine the state of battery.
Fig. 3 is the schematic block diagram of the battery power detection circuit of some embodiments of the utility model.Refering to what is shown in Fig. 3,
Battery power detection circuit 12 may include voltage measurement sub-circuit 12b.Voltage measurement sub-circuit 12b is for measuring battery 100
Voltage value.After voltage measurement sub-circuit 12b measures the voltage value of battery 100, controller 14 can compare the voltage value with
Second threshold, to determine whether reminiscences 13 issues alerting signal.Specifically, when the electricity that voltage measurement sub-circuit 12b is measured
When the voltage in pond 100 is lower than second threshold, determine that reminiscences 13 issues alerting signal；It is measured as voltage measurement sub-circuit 12b
When the voltage of battery 100 is greater than or equal to second threshold, determine reminiscences 13 without issuing alerting signal.In some embodiments
In, second threshold can for battery 100 nominal voltage a ratio value, such as battery 100 nominal voltage 10%,
5%, 3% etc..It should be noted that when using the concatenated mode of multiple batteries for the power supply of pulse igniter 10, it is described nominal
Voltage value is the summation of the nominal voltage of the multiple batteries.For example, when using nominal voltage for the two section dry cells of 1.5V
When series connection is that pulse igniter 10 is powered, the nominal voltage is 1.5V+1.5V=3V.
Battery power detection circuit shown in Fig. 3 12 by comparing actual measurement cell voltage and battery nominal voltage
One ratio value determines whether battery is in low battery state.Since battery power detection circuit 12 shown in Fig. 3 is to pass through electricity
For pressure to detect battery capacity, having the advantages that being capable of real-time detection.
Fig. 4 is the schematic block diagram of the reminiscences of some embodiments of the utility model.Refering to what is shown in Fig. 4, reminiscences 13 can
To include one of buzzer 13a, indicator light 13b and display screen 13c or a variety of, or the like.Buzzer 13a can be pressure
Electric-type buzzer and/or electromagnetic buzzer.Indicator light 13b can be one of LED, halogen lamp, fluorescent lamp etc. or a variety of.
Display screen 13c can be one of liquid crystal display, OLED display screen, plasma panel etc. or a variety of.
It continues to refer to figure 1, controller 14 is control device and/or circuit in pulse igniter 10.Controller 14 is for example
May include logic circuit, microcontroller (MCU), specific integrated circuit (ASIC), field programmable gate array (FPGA),
One of programmable logic device (CPLD) etc. is a variety of.
In some embodiments, pulse igniter 10 further includes flame detection circuit 15.Flame detection circuit 15 and control
Device 14 connects.Battery 100 can also provide electric energy for flame detection circuit 15.
Flame detection circuit 15 is for detecting in burner with the presence or absence of flame.In some embodiments, fire defector electricity
Road 15 may include ion inductive needle, and be detected by being set in burner or being set to the ion inductive needle near burner
With the presence or absence of flame.Specifically, flame detection circuit 15 can apply the electricity of opposed polarity to burner and ion inductive needle
Pressure, since burning can generate a large amount of ion and/or electronics, when in burner there are when flame, burner and ion inductive needle
It just will form current loop, therefore can be judged in burner according to whether there is electric current in the circuit with the presence or absence of flame.
In some embodiments, controller 14 can control the opening and closing of electrically-controlled valve, according to the testing result of flame detection circuit 15 with reality
Existing blowout protection.Specifically, when flame detection circuit 15 detects the presence of flame, controller 14 can control battery 100
It powers to electrically-controlled valve, opens electrically-controlled valve, with lasting supply combustion gas；When flame is not detected in flame detection circuit 15, control
Device 14, which can control battery 100, to be stopped being that electrically-controlled valve is powered, and closes electrically-controlled valve, to cut off the supply of combustion gas.In the present embodiment
In, flame detection circuit 15 is detected in burner by ion inductive needle with the presence or absence of flame.Compared to the mode of thermocouple,
Ion induction mode has the characteristics that determine fray-out of flame immediately when fray-out of flame, can quickly close automatically controlled
Valve, to fast implement blowout protection.
Fig. 5 is the basic block diagram of the gas-fired equipment of some embodiments of the utility model.Refering to what is shown in Fig. 1, gas-fired equipment 1
Including pulse igniter 10, burner 20, electrically-controlled valve 30 and steam line 40.Battery 100 is that pulse igniter 10 provides electric energy.
Battery 100 is one of such as may include dry cell, lithium battery, nickel-metal hydride battery or a variety of.Gas-fired equipment 1 may include combustion
Steam stove, gas heater, gas fired-boiler etc., the utility model is without restriction to this.
Burner 20 is for burning to combustion gas.Combustion gas can be supplied to burner 20 by steam line 40.The combustion
Gas may include natural gas, coal gas, liquefied petroleum gas etc..
Electrically-controlled valve 30 is set on steam line 40, for controlling the on-off of combustion gas.Electrically-controlled valve 30 and pulse igniter 10
Etc. matching, blowout protection may be implemented.Electrically-controlled valve 30 can be normally closed electrically-controlled valve.Electrically-controlled valve 30 can be mentioned by battery 100
The electric energy of confession keeps it in opening state.In some embodiments, electrically-controlled valve 30 can be solenoid valve.
It is appreciated that being also provided with plug valve (not shown), on steam line 40 to set using combustion gas
When standby 1, the size of flame can be controlled by the plug valve.In some embodiments, the plug valve at least have high fire, in
Three kinds of fire, small fire flame gears.
Firing circuit 11 in pulse igniter 10 is for lighting a fire to combustion gas.In some embodiments, firing circuit
11 by generating high-voltage pulse signal, and is set the electric discharge of the ignition electrode 11a near burner 20 and generates electric spark to realize
Igniting.
Flame detection circuit 15 in pulse igniter 10 is for detecting in burner with the presence or absence of flame.In some implementations
In example, flame detection circuit 15 may include ion inductive needle 15a, and by being set in burner 20 or being set to burner
Ion inductive needle 15a near 20 detects whether that there are flames.Specifically, flame detection circuit 15 can be to 20 He of burner
Ion inductive needle 15a applies the voltage of opposed polarity, since burning can generate a large amount of ion and/or electronics, when burner 20
In there are when flame, burner 20 and ion inductive needle 15a just will form current loop, thus can according in the circuit whether
There are electric currents to judge in burner 20 with the presence or absence of flame.In some embodiments, controller 14 can be according to fire defector
The testing result of circuit 15 controls the opening and closing of electrically-controlled valve 30, to realize blowout protection.Specifically, when flame detection circuit 15
When detecting the presence of flame, controller 14 can control battery 100 and power to electrically-controlled valve 30, open electrically-controlled valve 30, to continue
Supply combustion gas；When flame is not detected in flame detection circuit 15, controller 14, which can control battery 100, to be stopped being electrically-controlled valve 30
Power supply closes electrically-controlled valve 30, to cut off the supply of combustion gas.
It is appreciated that gas-fired equipment may include multiple burners 20, it correspondingly also include multiple electrically-controlled valves 30, air supply pipe
Road 40 etc..There are two the gas-fired equipments 2 of burner 20 for tool as shown in Figure 6.Although showing two firing circuits 11, two in Fig. 6
A flame detection circuit 15, it is to be understood that, the igniting of two burners 20 can be realized by a firing circuit 11, it can be with
Realize that two burners 20 whether there is the detection of flame by a flame detection circuit 15.
The working principle of gas-fired equipment 1 is briefly introduced by taking gas furnace as an example below.It is automatically controlled in the sparking of user's turning knob
Valve 30 can be screwed and open, and provide combustion gas to burner 20 via steam line 40.Meanwhile firing circuit 11 can export high-tension pulse
Punching issues electric spark to ignition electrode 11a, ignition electrode 11a, realizes igniting.After realizing igniting, in combustion process, ion induction
Current loop is formed between needle 15a and burner 20, flame detection circuit 15 determines in burner 20 according to the current loop
There are flames.At this point, controller 14 controls battery 100 as the power supply of electrically-controlled valve 30, electrically-controlled valve 30 is set to be maintained at opening state, with dimension
Offer combustion gas is provided, combustion gas is kept to burn away.When the fray-out of flame in burner 20, ion inductive needle 15a and burner 20
There is no electric currents in the circuit of composition.Stop being that electrically-controlled valve 30 is powered at this point, flame detection circuit 15 controls battery 100, it is automatically controlled
Valve 30 returns to closed state, stops providing combustion gas, to realize blowout protection.During 1 use of gas-fired equipment, battery capacity
Detection circuit 12 can be supplied to the driving current value of electrically-controlled valve 30 by measuring battery 100 and/or measure the voltage of battery 100
The mode of value determines whether the electricity of battery 100 is lower than threshold value.If the electricity of battery 100 is lower than threshold value, pass through reminiscences
13 issue alerting signal.
Gas-fired equipment 1 has battery power detection circuit 12, and whether the electricity for being able to detect battery 100 is lower than threshold value, and
It when the electricity of battery 100 is lower than threshold value, is issued and is reminded by reminiscences 13, reminded user to replace battery, avoid because of battery
Electricity is low and user is caused to be mistakenly considered combustion apparatus damage.
Although the utility model is described with reference to current specific embodiment, ordinary skill in the art
Personnel it should be appreciated that more than embodiment be intended merely to illustrate the utility model, be detached from the spirit of the present invention no
In the case of can also make various equivalent change or replacement, therefore, as long as to upper in the spirit of the utility model
State the variation of embodiment, modification will all be fallen in the range of following claims.
Claims (8)
1. a kind of gas-fired equipment battery capacity prompt system, which is characterized in that including pulse igniter, the pulse igniter packet
It includes:
Firing circuit for igniting；
Battery power detection circuit, the electricity of the battery for being detected as the pulse igniter power supply；
Reminiscences, for issuing alerting signal；
Controller is separately connected with the firing circuit, the battery power detection circuit and the reminiscences, for described
When the electricity for the battery that battery power detection circuit detects is lower than threshold value, controls the reminiscences and issue alerting signal；
For detecting the flame detection circuit that whether there is flame in burner, the flame detection circuit and the controller connect
It connects；The controller controls the battery and powers for electrically-controlled valve when the flame detection circuit detects the presence of flame, described
Controller controls the battery and stops being that the electrically-controlled valve is powered when flame is not detected in the flame detection circuit.
2. gas-fired equipment battery capacity prompt system according to claim 1, which is characterized in that the battery capacity detection
Circuit includes current measurement sub-circuit, and the current measurement sub-circuit is used to measure the driving electricity that the battery is supplied to electrically-controlled valve
Flow valuve.
3. gas-fired equipment battery capacity prompt system according to claim 2, which is characterized in that the controller is described
When driving current value is lower than first threshold, controls the reminiscences and issue alerting signal；Wherein, it is set according to the first threshold
The fixed battery will be exported to a ratio value of the current value of the electrically-controlled valve.
4. gas-fired equipment battery capacity prompt system according to claim 1, which is characterized in that the battery capacity detection
Circuit includes voltage measurement sub-circuit, and the voltage measurement sub-circuit is used to measure the voltage value of the battery.
5. gas-fired equipment battery capacity prompt system according to claim 4, which is characterized in that the controller is described
When voltage value is lower than second threshold, controls the reminiscences and issue alerting signal；Wherein, the second threshold is the battery
One ratio value of nominal voltage.
6. gas-fired equipment battery capacity prompt system according to claim 1, which is characterized in that the flame detection circuit
Including ion inductive needle.
7. gas-fired equipment battery capacity prompt system according to claim 1, which is characterized in that the reminiscences includes bee
Ring one of device, display screen and indicator light or a variety of.
8. a kind of gas-fired equipment characterized by comprising
Burner；
Electrically-controlled valve is set on the steam line of the burner；And
Gas-fired equipment battery capacity prompt system as described in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407469.7U CN209432911U (en) | 2018-08-29 | 2018-08-29 | Gas equipment battery power prompt system and gas equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407469.7U CN209432911U (en) | 2018-08-29 | 2018-08-29 | Gas equipment battery power prompt system and gas equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209432911U true CN209432911U (en) | 2019-09-24 |
Family
ID=68006454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821407469.7U Active CN209432911U (en) | 2018-08-29 | 2018-08-29 | Gas equipment battery power prompt system and gas equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209432911U (en) |
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2018
- 2018-08-29 CN CN201821407469.7U patent/CN209432911U/en active Active
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