CN113777435B - Analog user detection method for gas stove - Google Patents
Analog user detection method for gas stove Download PDFInfo
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- CN113777435B CN113777435B CN202111170805.7A CN202111170805A CN113777435B CN 113777435 B CN113777435 B CN 113777435B CN 202111170805 A CN202111170805 A CN 202111170805A CN 113777435 B CN113777435 B CN 113777435B
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- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000004088 simulation Methods 0.000 claims abstract description 18
- 238000013461 design Methods 0.000 claims abstract description 14
- 238000012937 correction Methods 0.000 claims abstract description 5
- 238000011835 investigation Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 89
- 239000002737 fuel gas Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses a simulated user detection method for a gas stove, which comprises the following steps: connecting the analog battery to a gas stove to be detected; the variable resistor is regulated, and when the simulation battery simulates the early stage, the middle stage and the later stage of the life cycle of the battery respectively, the valve opening capacity of the gas stove is detected; summarizing the valve opening capability of the gas stove; if the valve opening capability of the gas stove is the same as the expected design target, the gas stove is indicated to be normal in function and is ended, otherwise, the gas stove is subjected to problem investigation and correction, and the simulation user detection method is re-executed. The invention realizes the detection of the valve opening capability of the gas stove based on the simulation of the actual power supply condition of the battery in the process of using the gas stove by a user, and ensures the delivery quality of the gas stove.
Description
Technical Field
The invention relates to a simulated user detection method for a gas cooker, and belongs to the field of cooker detection before delivery.
Background
In a gas stove as one of the kitchen core appliances, in the case of not having a complicated display function and wireless linkage, only basic functions (ignition, valve opening, flame detection, MCU operation) are maintained, and power consumption is generally not high, so that a conventional battery (such as a carbon battery and an alkaline battery) is generally used as a power supply of the gas stove. However, it is unknown that conventional batteries have different performances in the front, middle and rear stages of the battery life cycle, such as whether the battery utilization rate is high or not, whether the battery is durable or not, and whether the battery can be normally used in the front, middle and rear stages of the battery life cycle due to installation errors of key parts after the gas cooker is assembled. It is conceivable that if a gas stove with high quality requirements cannot be used normally when the battery is in the middle of the battery life cycle, it is obvious that the gas stove has problems, and the quality of the outgoing gas stove is not guaranteed. Therefore, designing a method for detecting a gas stove based on the different periods of the battery (the front, middle and later periods of the battery life cycle) is an urgent problem to be solved at present.
Disclosure of Invention
The invention aims to provide a simulated user detection method for a gas stove, which realizes detection of valve opening capacity of the gas stove based on simulation of actual power supply conditions of a battery in the process of using the gas stove by a user and ensures factory quality of the gas stove.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the simulated user detection method for the gas stove comprises an igniter control board, wherein the igniter control board is connected with an electromagnetic valve and an ignition pulser.
1) The simulation battery is used as a power supply to be connected to a power supply port of the gas stove to be detected, wherein: the analog battery comprises a variable resistor and a stabilized voltage power supply which are connected in series;
2) And (3) adjusting the variable resistor, and detecting the valve opening capacity of the gas stove to be detected when the simulated battery is made to simulate the early stage, the middle stage and the later stage of the life cycle of the battery respectively:
the igniter control panel is electrified, the ignition pulser is started while the electromagnetic valve is driven to be opened, whether fuel gas can be ignited and combustion is formed is checked, wherein: if the fuel gas is ignited and burnt, the valve can be opened, otherwise, the valve cannot be opened;
3) Summarizing valve opening capability of the gas stove to be detected when the simulation battery simulates the early, middle and later stages of the life cycle of the battery respectively;
4) The following judgment is made: if the valve opening capacity of the gas stove to be detected is the same as the expected design target when the simulated battery simulates the early, middle and later stages of the life cycle of the battery respectively, the gas stove to be detected is normal in function, and the gas stove to be detected is ended, otherwise, the next step is carried out;
5) And (3) performing problem investigation and correction on the gas stove to be detected, and returning to 1).
The invention has the advantages that:
the simulated user detection method simulates the actual power supply condition of the battery in the process of using the gas stove to detect the valve opening capability of the gas stove, and prevents the valve opening capability of the gas stove from being damaged, so that on one hand, the influence of the installation errors of key parts in the assembling process of the gas stove on the normal use of the gas stove is greatly reduced, on the other hand, the influence of the battery power on the normal use of the gas stove after the battery power is reduced is greatly reduced, and the factory quality of the gas stove is ensured.
Drawings
Fig. 1 is a flowchart of a simulated user detection method for a gas cooker of the present invention.
FIG. 2 is a schematic diagram illustrating an embodiment of a method for simulating user detection according to the present invention.
Fig. 3 is a schematic diagram of a discharge characteristic of a conventional battery.
FIG. 4 is a schematic diagram illustrating a method for simulating user detection according to an embodiment of the present invention.
Detailed Description
In order to realize the present invention, particularly, discharge characteristics of conventional batteries commonly used for gas cookers have been studied and analyzed. Here, the conventional battery means a carbonaceous battery, an alkaline battery, or the like currently used in a gas cooker in the market, and the battery is equivalent to an internal resistance r and a regulated power supply V epsilon in series.
It is well known that the electromotive force and internal resistance of a battery are important technical indicators for measuring the performance of the battery.
Output voltage U of battery L Is the positive potential E of the regulated power supply V epsilon not including ohmic potential drop P Negative electrode potential E excluding ohmic potential drop N And the potential drop of the internal resistance r of the battery, namely:
U L ＝E P －E N －i×r，
in the formula, i represents the discharge current of the battery.
Then, when the battery is open (i=0), the open voltage of the battery, that is, the electromotive force epsilon, is:
ε＝E P －E N 。
1 section of No. 1 alkaline dry battery is selected, the nominal output voltage of the alkaline dry battery is 1.5V, and the discharge current is 600mA.
The alkaline dry cell was discharged every day for 2 hours, and after discharging, the electromotive force epsilon of the alkaline dry cell was measured to calculate the internal resistance r of the cell, thereby obtaining the curves shown in the following table 1 and fig. 3.
TABLE 1 relationship between battery electromotive force, internal resistance and discharge time
| Discharge time/h | Electromotive force epsilon/V | Internal resistance r/Ω | |
| Initial initiation | 0 | 1.59 | 0.25 |
| Day 1 for 2 hours | 2 | 1.45 | 0.45 |
| Day 2 for 2 hours | 4 | 1.41 | 0.51 |
| Day 3 2 hours | 6 | 1.37 | 0.55 |
| Day 4 2 hours | 8 | 1.34 | 0.76 |
| Day 5 for 2 hours | 10 | 1.32 | 1.01 |
| Day 6 2 hours | 12 | 1.28 | 1.46 |
The following rules can be derived from table 1 and fig. 3 above:
(1) The longer the discharge time, the greater the internal resistance r of the battery.
(2) The longer the discharge time, i.e., the longer the battery life, the smaller the electromotive force epsilon.
Although there are slight differences in batteries from manufacturer to manufacturer, the performance of the battery generally follows the above rules throughout the battery life cycle.
Based on the law of the research on the discharge characteristics of the battery, the invention divides the life cycle of the battery into three stages of early stage, medium stage and later stage to detect the valve opening capability of the gas stove, and specifically:
the gas stove 10 to be detected, which simulates the user detection method, comprises an igniter control plate 11, wherein the igniter control plate 11 is connected with an electromagnetic valve 12 and an ignition pulser 13, and the gas stove 10 is an existing gas stove in the field.
Referring to fig. 1 and 2, the simulated user detection method for a gas cooker of the present invention includes the steps of:
1) The simulated battery 20 is used as a power supply to be connected to a power supply port of the gas stove 10 to be detected, namely, the situation that a user loads the battery into a battery box of the gas stove 10 is simulated, and the gas stove 10 is connected with a corresponding gas pipeline, wherein: the analog battery 20 includes a variable resistor R and a regulated power supply V epsilon connected in series;
2) The variable resistor R is adjusted, and when the simulation battery 20 is made to simulate the early, middle and later stages of the battery life cycle respectively, the valve opening capability detection is performed on the gas stove 10 to be detected:
the igniter control board 11 is powered on, the ignition pulser 13 is started while the electromagnetic valve 12 is driven to be opened, whether fuel gas can be ignited and combustion is formed is checked, wherein: if the fuel gas is ignited and burnt, the valve can be opened, otherwise, the valve cannot be opened;
3) Summarizing the valve opening capability of the gas cooker 10 to be detected when the simulation battery 20 simulates the early, middle and later stages of the battery life cycle respectively;
4) The following judgment is made: if the valve opening capability of the gas stove 10 to be detected is the same as the expected design target when the simulation battery 20 simulates the early, middle and later stages of the battery life cycle respectively, the gas stove 10 to be detected is indicated to be normal in function, namely, the quality meets the requirements, and is ended, otherwise, the gas stove 10 to be detected is indicated to be abnormal in function, namely, the quality does not meet the requirements, and the next step is carried out;
5) And (3) performing problem investigation (such as tooling problem) and correction on the gas stove 10 to be detected, and returning to 1).
In the present invention, the front, middle and rear phases of the battery life cycle of the analog battery 20 are respectively the voltage ranges corresponding to the front, middle and rear phases of the battery life cycle of the analog battery 20, in which: the resistance value of the variable resistor R increases in order when the analog battery 20 simulates the early, middle and late stages of the battery life cycle, respectively, and the electromotive force epsilon of the analog battery 20 decreases in order when the analog battery 20 simulates the early, middle and late stages of the battery life cycle, respectively.
In practical implementation, it is preferable to perform multiple valve opening capability detection by adjusting the variable resistor R to a plurality of different resistance values in the early, middle and late stages of the battery life cycle of the analog battery 20.
In actual practice, if the simulated battery 20 is made to simulate a two-carbon or alkaline battery (conventional battery) with a nominal output voltage of 1.5V, then: the electromotive force epsilon of the analog battery 20 is variable between 2.0V and 3.1V, and the resistance value of the variable resistor R is adjustable between 0.5Ω and 3Ω, wherein:
when the simulated battery 20 simulates the early stage of the life cycle of the battery, R is less than or equal to 1.25 omega and epsilon is more than or equal to 2.8V;
when the simulation battery 20 simulates the middle stage of the life cycle of the battery, R is more than 1.25 omega and less than or equal to 2.25 omega, and epsilon is more than or equal to 2.4V and less than or equal to 2.8V;
when the simulated battery 20 simulates the later stage of the battery life cycle, R is more than 2.25 omega, and epsilon is more than or equal to 2.0V and less than 2.4V.
Referring specifically to table 2, the early, middle and late stages of the battery life cycle are indicated by solid line shading, dash-dot line shading, and dashed line shading, respectively. The unshaded part is an auxiliary area for explaining the difference of different batteries.
TABLE 2
In actual implementation, as in fig. 4, a simulated battery pack 30 may be used instead of the simulated battery 20, wherein:
the analog battery pack 30 includes four battery cells connected in parallel, each battery cell is composed of a series fixed resistor, a regulated power supply and a switch, the fixed resistors of the four battery cells have different resistance values and the electromotive forces of the regulated power supply are different, wherein: each battery unit is conducted by closing a switch of the battery unit, so that the four battery units respectively correspond to the early stage, the middle late stage and the later stage of the life cycle of the battery; the resistance values of the fixed resistors at the early, middle and late stages of the life cycle of the analog battery are sequentially increased, and the electromotive forces at the early, middle and late stages of the life cycle of the analog battery are sequentially reduced.
For example, as shown in fig. 4, four battery cells are designed as:
the battery unit 1 is composed of a fixed resistor R1, a regulated power supply vε 1 and a switch K1, r1=0.5Ω, vε1=3.0v, the battery unit 2 is composed of a fixed resistor R2, a regulated power supply vε 2 and a switch K2, r2=1.5Ω, vε2=2.75v, the battery unit 3 is composed of a fixed resistor R3, a regulated power supply vε3 and a switch K3, r3=2.0Ω, vε3=2.5v, the battery unit 4 is composed of a fixed resistor R4, a regulated power supply vε4 and a switch K4, r4=2.6Ω, vε4=2.2v, whereby the battery units 1 to 4 are used to simulate the early, middle and late stages of the battery life cycle, respectively.
Here, each cell corresponds to the analog battery 20 shown in fig. 2 for simulating two-cell carbonaceous or alkaline batteries (conventional batteries) having a nominal output voltage of 1.5V, and the electromotive force epsilon of the stabilized power supply is between 2.0V and 3.1V and the fixed resistance value is between 0.5Ω and 3Ω for each cell.
The simulated user detection method for the gas stove is executed before the gas stove 10 to be detected leaves the factory, so that the design can well prevent the gas stove from being damaged, on one hand, the influence of the installation errors of key parts in the assembling process on the normal use of the gas stove is greatly reduced, on the other hand, the influence of the electric power of the battery on the normal use of the gas stove after the electric power is reduced is greatly reduced, and the quality of the gas stove can meet the factory requirement.
Taking the simulated battery pack 30 shown in fig. 4 as an example, the simulated user detection method of the present invention is performed for the gas cooker 10 of model A, B, as follows:
the expected design objectives for the valve opening capacity of a gas burner of model A, B are seen in tables 3 and 4, respectively, below, prior to execution.
As shown in table 3, the expected design targets of the valve opening capability of the gas cooker 10 of model a (hereinafter simply referred to as gas cooker a) are shown in the table, wherein O indicates that the valve can be opened, and X indicates that the valve cannot be opened.
Here, if the "valve-openable" occupancy ratio is high in a certain stage of the battery life cycle, the intended design goal at this stage is considered to be "valve-openable". Similarly, if the "impossible to open valve" occupancy is high for a certain phase of the battery life cycle, the intended design goal at this phase is considered to be "impossible to open valve".
TABLE 3 Table 3
As shown in table 4, the expected design targets of the valve opening capability of the gas cooker 10 of model B (hereinafter simply referred to as gas cooker B) are shown in the table, wherein O indicates that the valve can be opened, and X indicates that the valve cannot be opened.
TABLE 4 Table 4
Then, the simulated user detection method of the present invention is performed for the gas cookers A, B, respectively.
The following describes a gas range a as an example.
First, the analog battery pack 30 shown in fig. 4 is connected to the power supply port of the gas cooker a as a power supply source. Then, the switches K1 to K4 are individually closed in sequence, so that the power supply of the gas stove a is simulated by the simulated battery pack 30 in the states of the front stage, the middle stage and the rear stage of the battery life cycle, and the valve opening capability of the gas stove a is detected while the states of the front stage, the middle stage and the rear stage are simulated.
The valve opening capability detection process specifically comprises the following steps: the igniter control board 11 is powered on to drive the solenoid valve 12 to open, and at the same time, the ignition pulser 13 is started to check whether the fuel gas is ignited and combustion is formed. If the fuel gas ignites and burns, the valve can be opened, otherwise, the valve can not be opened.
Then, the valve opening ability of the gas cooker a in the above four stages is summarized, see table 5 below.
TABLE 5
In table 5, O means "closed", X means "open", OK means "openable valve", NG means "not openable valve".
Table 5 and table 3 are compared to determine whether the valve opening capability of the gas stove a in the four stages is the same as the expected design target. It can be found by careful comparison that the results of table 5 deviate from the expected design goals of table 3, specifically, the gas stove a does not meet the set requirement of "valve opening" in the middle and early stages of the battery life cycle, and therefore, the function of the gas stove a is abnormal, i.e., the quality of the gas stove a is not satisfactory, the problem checking and correction are required, and then the simulated user detection method of the present invention is re-executed until the gas stove a functions normally.
Similarly, the simulated user detection method of the invention is executed on the gas stove B, and the valve opening capacity of the gas stove B is obtained, which is shown in the following table 6.
TABLE 6
In table 6, O means "closed", X means "open", OK means "openable valve", NG means "not openable valve".
Table 6 and table 4 are compared to determine whether the valve opening capability of the gas stove B in the four stages is the same as the expected design target. By careful comparison, the results of Table 6 were found to match the expected design goals of Table 4, and thus, the gas stove B was functioning properly, i.e., the quality of the gas stove B was satisfactory, and shipped from the factory.
The foregoing is a description of the preferred embodiments of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any modifications, equivalent changes, simple substitutions and the like based on the technical scheme of the present invention can be made without departing from the spirit and scope of the present invention.
Claims (6)
1. The simulated user detection method for the gas stove comprises an igniter control board, wherein the igniter control board is connected with an electromagnetic valve and an ignition pulser.
1) The simulation battery is used as a power supply to be connected to a power supply port of the gas stove to be detected, wherein: the analog battery comprises a variable resistor and a stabilized voltage power supply which are connected in series;
2) And (3) adjusting the variable resistor, and detecting the valve opening capacity of the gas stove to be detected when the simulated battery is made to simulate the early stage, the middle stage and the later stage of the life cycle of the battery respectively:
the igniter control panel is electrified, the ignition pulser is started while the electromagnetic valve is driven to be opened, whether fuel gas can be ignited and combustion is formed is checked, wherein: if the fuel gas is ignited and burnt, the valve can be opened, otherwise, the valve cannot be opened;
3) Summarizing valve opening capability of the gas stove to be detected when the simulation battery simulates the early, middle and later stages of the life cycle of the battery respectively;
4) The following judgment is made: if the valve opening capacity of the gas stove to be detected is the same as the expected design target when the simulated battery simulates the early, middle and later stages of the life cycle of the battery respectively, the gas stove to be detected is normal in function, and the gas stove to be detected is ended, otherwise, the next step is carried out;
5) And (3) performing problem investigation and correction on the gas stove to be detected, and returning to 1).
2. The simulated user detection method for a gas cooker as claimed in claim 1, wherein:
the front stage, the middle stage and the later stage of the life cycle of the simulation battery are respectively simulated, the electromotive force of the simulation battery is instructed to be respectively in the voltage ranges corresponding to the front stage, the middle stage and the later stage of the life cycle of the battery, wherein: and when the simulation battery simulates the early stage, the middle stage and the later stage of the life cycle of the battery respectively, the resistance value of the variable resistor is sequentially increased, and the electromotive force of the simulation battery is sequentially reduced.
3. The simulated user detection method for a gas cooker as claimed in claim 2, wherein:
and when the simulation battery simulates the early stage, the middle stage and the later stage of the life cycle of the battery respectively, the variable resistor is adjusted to a plurality of different resistance values to perform multiple valve opening capability detection.
4. A simulated user detection method for a gas range as claimed in claim 3, wherein:
if the simulated battery simulates a two-carbon or alkaline battery with a nominal output voltage of 1.5V, then: the electromotive force of the simulation battery is variable between 2.0V and 3.1V, the resistance value of the variable resistor is adjustable between 0.5 omega and 3 omega, wherein:
when the simulated battery simulates the early stage of the life cycle of the battery, R is less than or equal to 1.25 omega, and epsilon is more than or equal to 2.8V;
when the simulated battery simulates the middle period of the life cycle of the battery, R is more than 1.25 omega and less than or equal to 2.25 omega, and epsilon is more than or equal to 2.4V and less than 2.8V;
r is more than 2.25 omega, and epsilon is more than or equal to 2.0V and less than 2.4V when the simulated battery simulates the later stage of the life cycle of the battery;
epsilon represents the electromotive force of the analog battery, and R represents the resistance value of the variable resistor.
5. The simulated user detection method for a gas cooker as claimed in claim 1, wherein:
using a simulated battery pack in place of the simulated battery, wherein:
the analog battery pack comprises four battery units connected in parallel, each battery unit consists of a fixed resistor, a stabilized voltage power supply and a switch which are connected in series, the fixed resistor resistance values of the four battery units are different, and the electromotive forces of the stabilized voltage power supplies are different, wherein: each battery unit is conducted by closing a switch of the battery unit, so that the four battery units respectively correspond to the early stage, the middle late stage and the later stage of the life cycle of the battery; the resistance values of the fixed resistors at the early, middle and late stages of the life cycle of the analog battery are sequentially increased, and the electromotive forces at the early, middle and late stages of the life cycle of the analog battery are sequentially reduced.
6. The simulated user detection method for a gas cooker as claimed in any one of claims 1 to 5, wherein:
the simulated user detection method for the gas stove is executed before the gas stove to be detected leaves the factory.
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| CN111720863A (en) * | 2020-06-15 | 2020-09-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Gas stove battery detection control method and gas stove |
| CN111679203A (en) * | 2020-07-31 | 2020-09-18 | 佛山市顺德区美的洗涤电器制造有限公司 | Method and device for judging residual capacity of battery, cooking equipment and storage medium |
| CN112366795A (en) * | 2020-12-01 | 2021-02-12 | 上海交通大学 | Power electronic intelligent battery unit |
| CN113432157A (en) * | 2021-07-30 | 2021-09-24 | 华帝股份有限公司 | Gas stove and control method thereof |
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