CN114046542B - Stove pulse integrated circuit and stove ignition control method - Google Patents
Stove pulse integrated circuit and stove ignition control method Download PDFInfo
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- CN114046542B CN114046542B CN202111290602.1A CN202111290602A CN114046542B CN 114046542 B CN114046542 B CN 114046542B CN 202111290602 A CN202111290602 A CN 202111290602A CN 114046542 B CN114046542 B CN 114046542B
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- 238000000034 method Methods 0.000 title claims description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 5
- 230000010355 oscillation Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000010354 integration Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 239000000523 sample Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/122—Arrangement or mounting of control or safety devices on stoves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/10—Arrangement or mounting of ignition devices
- F24C3/103—Arrangement or mounting of ignition devices of electric ignition devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention disclosesThe stove pulse integrated circuit comprises a main control chip which is connected with a power supply, an ignition switch and an adsorption switch, and is provided with a left ignition switch input end, a right ignition switch input end, a left ignition output end, a right ignition output end, a left suction valve output end and a right suction valve output end, and receives and transmits clock pulse signals; the ignition unit is connected with the left ignition switch input end, the right ignition switch input end, the left ignition output end and the right ignition output end and used for executing pulse signals; a resistor RKL The device is connected with the input end of the left ignition switch and is used for controlling the ignition unit, traditional discrete components are integrated into an integrated circuit, the number of the components is reduced from 60 to 26, the integration degree is greatly improved, and a main control chip is designed to be connected with the ignition unit so as to control the ignition work of a stove; resistor RKL The ignition time and the valve suction time are determined by the size, so that the user-defined requirement of a customer is met, and the work of controlling the ignition unit is performed.
Description
Technical Field
The invention relates to the technical field of stoves, in particular to a stove pulse integrated circuit and a stove ignition control method.
Background
At present, domestic gas stoves adopt two flameout safety protection devices, one of which consists of a thermocouple probe and a special non-self-priming thermocouple electromagnetic valve, which is also called a thermoelectric flameout safety protection device; and the other is composed of a flame ion probe and a self-priming electromagnetic valve, which is also called a self-priming electromagnetic valve flameout safety protection device.
In the conventional stove of the thermoelectric flameout safety protection device, in a normal combustion state, a thermoelectric potential is generated after a thermocouple probe is heated by flame, the thermoelectric potential is added on a thermocouple electromagnetic valve coil, and the electromagnetic valve is kept in an open state by current flowing through the electromagnetic valve coil. As shown in fig. 1, the conventional oven pulse is formed by combining discrete components, and one oven pulse needs up to 60 components to complete the product function, so that the processing procedure of the production line is complicated, and the testing is time-consuming.
Disclosure of Invention
In order to solve the problems, the invention provides a stove pulse integrated circuit and a stove ignition control method.
The technical scheme of the invention is as follows:
the invention relates to a stove pulse integrated circuit, which comprises:
the main control chip is connected with the power supply, the ignition switch and the adsorption switch and provided with a left ignition switch input end, a right ignition switch input end, a left ignition output end, a right ignition output end, a left suction valve output end and a right suction valve output end, and receives and transmits clock pulse signals;
the ignition unit is connected with the left ignition switch input end, the right ignition switch input end, the left ignition output end and the right ignition output end and used for executing pulse signals;
a resistor R KL The ignition control device is connected with the input end of the left ignition switch and used for controlling the ignition unit;
a resistor R KR Is connected with the input end of the right ignition switch and is used for controlling the ignition unit.
Further, the ignition unit comprises a left ignition unit and a right ignition unit, the left ignition unit of the first path of ignition unit is connected with the right ignition unit in series and is connected with the left ignition output end, the left ignition unit of the second path of ignition unit is connected with the left ignition output end in series, and the right ignition unit is connected with the right ignition output end in series.
Further, the 1 st pin of main control chip is right ignition switch input, and the 4 th pin is left ignition switch input, and the 5 th pin is left ignition output, and the 8 th pin is right ignition output, and the 6 th pin is left suction valve output, and the 7 th pin is right suction valve output, and the right ignition unit is connected to the 1 st pin, 7 th pin and the 8 th pin of main control chip, the left ignition unit is connected to the 4 th pin, 5 th pin and 6 th pin of main control chip, and the 2 nd pin of main control chip is connected to the power, and the 3 rd pin of main control chip is grounded.
Further, the ignition unit is also connected with an oscillation boosting module, the oscillation boosting module is respectively connected with a left ignition output end and a right ignition output end, the oscillation boosting module comprises a transformer T1, a triode Q1 and a capacitor C5, a collector electrode of the triode Q1 is connected with a power supply, a base electrode of the triode Q1 is connected with the capacitor C5, and an emitter electrode of the triode Q1 is connected with the transformer T1.
Further, a power supply battery reverse connection protection module is arranged in the main control chip to prevent the chip from being damaged.
The invention also discloses a stove ignition control method, which comprises the following steps:
step 1), a main control chip stores ignition mode information, ignition delay information and valve suction delay information;
step 2) the main control chip is powered on to detect whether the right ignition output end has a resistor R SE When the fire is in the ground, the fire enters a first path of ignition unit, the right ignition output end is set to be at a low level, then the stove enters a standby state, and if not, the fire enters a second ignition unit, and then the stove enters the standby state;
step 3), after detecting that any furnace end switch in the first path of ignition unit is closed and after the debounce time of 150ms is set in the main control chip, the main control chip pulls down the left suction valve output end and the right suction valve output end, the pull-down current is 150mA, the corresponding suction valve switch is opened, and meanwhile, the main control chip pulls down the left ignition output end, the pull-down current is 20mA, and ignition is started;
step 4), after detecting that one furnace end switch in the second path ignition unit is closed and after the debounce time of 150ms is set in the main control chip, the main control chip pulls down the corresponding left or right suction valve output end, the pull-down current is 150mA, the corresponding suction valve switch is opened, and meanwhile, the main control chip pulls down the left or right ignition output end, the pull-down current is 20mA, and ignition is started.
Further, in the step 3), when the main control chip detects that the furnace end switches corresponding to the left ignition input end and the right ignition input end are turned off, the left ignition output end is immediately turned off by pulling up, ignition is stopped, and the valve suction switches of the left suction valve output end and the right suction valve output end are turned off after the set valve suction time is over.
Further, in the step 4), when the main control chip detects that the burner switch of the 1 st or 4 th pin is turned off, the 5 th or 8 th pin is immediately turned off by pulling up, the ignition is stopped, and the 6 th or 7 th pin is turned off after the set valve suction time is over.
Further, when the main control chip detects that the valve suction time is over, the main control chip stops working and enters a standby state.
Further, in the step 2), when the main control chip does not detect the power supply, the left switch input terminal is set to be high level within the 30ms stable time of power-on, and the main control chip will automatically recognize that the longest ignition time and suction valve time are adopted.
The invention has the beneficial effects that: the traditional discrete elements are integrated into an integrated circuit, the number of the elements is reduced from 60 to 26, the integration degree is greatly improved, and a main control chip is designed to be connected with an ignition unit so as to control the ignition work of a stove; and a resistor R is arranged between the 4 th pin of the main control chip and the ground KL Through resistance R KL Current limiting, resistance R KL The ignition time and the valve suction time are determined by the size, so that the user-defined requirement of a customer is met, and the work of controlling the ignition unit is performed.
Drawings
FIG. 1 is a diagram of a pulse circuit of a conventional oven according to the background of the invention;
FIG. 2 is a circuit diagram of a stove pulse IC of the present invention at the time of simultaneous ignition;
FIG. 3 is a circuit diagram of a stove pulse IC according to the present invention during independent ignition;
FIG. 4 is a schematic block diagram of a stove pulse integrated circuit according to the present invention;
FIG. 5 is a flow chart of a method of controlling ignition of a stove according to the present invention;
FIG. 6 is a timing diagram of a single switch closure of a second path ignition unit of a stove ignition control method according to the present invention;
FIG. 7 is a timing diagram of the second path ignition unit of the stove ignition control method of the present invention with the left and right switches open;
FIG. 8 is a timing diagram of the second path ignition unit of the stove ignition control method of the present invention with the left and right switches simultaneously closed;
FIG. 9 is a timing diagram of a single switch closure of a first path of ignition units of a stove ignition control method according to the present invention;
FIG. 10 is a timing diagram of the first path of ignition unit with the left and right switches open and closed in accordance with the present invention;
FIG. 11 is a timing diagram of the first path of ignition unit of the stove ignition control method of the present invention with the left and right switches simultaneously closed;
fig. 12 is a schematic diagram of detecting when a main control chip of the stove ignition control method of the present invention is powered on.
In the figure, 1 is a main control chip, 2 is an ignition switch, 3 is a suction valve switch, and 4 is an ignition unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1-4, the present invention provides a stove pulse integrated circuit, comprising:
the main control chip 1 is connected with a power supply, an ignition switch 2 and an adsorption switch 3, and is provided with a left ignition switch input end, a right ignition switch input end, a left ignition output end, a right ignition output end, a left suction valve output end and a right suction valve output end, and receives and transmits clock pulse signals;
the ignition unit 4 is connected with the left ignition switch input end, the right ignition switch input end, the left ignition output end and the right ignition output end and executes pulse signals;
a resistor R KL The ignition control device is connected with the input end of the left ignition switch and used for controlling the ignition unit;
a resistor R KR Is connected with the input end of the right ignition switch and is used for controlling the ignition unit.
When the resistance R KL =10k, ignition time is 2s; when the resistance R KL <20K, the valve suction time is 5s; when the resistance R KL =40k, ignition time is 4s; when 20K<Resistor R KL <60K, the valve suction time is 7s; when the resistance R KL =80k, ignition time 9s; when the resistance R KL >60K, the valve suction time is 9s.
The ignition switch 2 and the adsorption switch 3 are product hardware, and belong to components in an ignition unit.
The ignition unit 4 comprises a left ignition unit and a right ignition unit, the left ignition unit of the first path of ignition unit is connected with the right ignition unit in series and is connected with the left ignition output end, the left ignition unit of the second path of ignition unit is connected with the left ignition output end in series, and the right ignition unit is connected with the right ignition output end in series.
The right ignition output end is also connected with a resistor R SE When the resistance R SE And (3) entering a first path of ignition unit, and otherwise, entering a second path of ignition unit, wherein the first path of ignition unit is in a two-burner simultaneous ignition mode, and the second path of ignition unit is in an independent burner ignition mode.
The utility model discloses a main control chip 1, including main control chip 1, main control chip 1's 1 st pin, the fourth pin, the fifth pin, the fourth pin and the fifth pin are the right ignition switch input, the fifth pin is the left ignition output, the fourth pin is the right ignition output, the fourth pin is the left suction valve output, the fourth pin is the right suction valve output, the 1 st pin, the fourth pin and the fourth pin of main control chip 1 connect right ignition unit, the fourth pin and the fourth pin of main control chip 1 connect left ignition unit, the fourth pin of main control chip 1 connects the power, the fourth pin of main control chip 1 is grounded.
The ignition unit 4 is also connected with an oscillation boosting module, the oscillation boosting module is respectively connected with a left ignition output end and a right ignition output end, the oscillation boosting module comprises a transformer T1, a triode Q1 and a capacitor C5, a collector electrode of the triode Q1 is connected with a power supply, a base electrode of the triode Q1 is connected with the capacitor C5, and an emitter electrode of the triode Q1 is connected with the transformer T1. The oscillation boosting module comprises a left oscillation boosting module and a right oscillation boosting module.
The main control chip is internally provided with a power supply battery reverse connection protection module, when the power supply battery is reversely connected, a current limiting circuit arranged in the main control chip limits the discharge current of the battery to be below 15mA (VCC=1.8V), so that the chip is prevented from being damaged.
And a power supply voltage stabilizing module, a valve suction driving control module and a digital timing module are also integrated in the main control chip 1. The power supply voltage stabilizing module provides a voltage stabilizing power supply for the main control chip 1, the suction valve driving control module controls the opening and the disconnection of the suction valve, and the digital timing module counts the ignition delay time and the suction valve delay time so as to achieve the purpose of precisely controlling the delay.
Referring to fig. 5, the invention also discloses a stove ignition control method, which comprises the following steps:
step 1), a main control chip 1 stores ignition mode information, ignition delay information and valve suction delay information;
step 2) the main control chip 1 is powered on to detect whether the right ignition output end has a resistor R SE When the fire is in the ground, the fire enters a first path of ignition unit, the right ignition output end is set to be at a low level, then the stove enters a standby state, and if not, the fire enters a second ignition unit, and then the stove enters the standby state;
step 3), after detecting that any furnace end switch in the first path of ignition unit is closed and after the debounce time of 150ms is set in the main control chip, the main control chip pulls down the left suction valve output end and the right suction valve output end, the pull-down current is 150mA, the corresponding suction valve switch 3 is opened, and meanwhile, the main control chip pulls down the left ignition output end, the pull-down current is 20mA, and ignition is started;
step 4), after detecting that one furnace end switch in the second path ignition unit is closed and after the debounce time of 150ms is set in the main control chip, the main control chip pulls down the corresponding left or right suction valve output end, the pull-down current is 150mA, the corresponding suction valve switch 3 is opened, and meanwhile, the main control chip pulls down the left or right ignition output end, the pull-down current is 20mA, and ignition is started.
In the step 3), when the main control chip detects that the furnace end switches corresponding to the left ignition input end and the right ignition input end are all turned off, the left ignition output end is immediately turned off by being pulled up, ignition is stopped, and the valve suction switches of the left suction valve output end and the right suction valve output end are turned off after the set valve suction time is over.
In the step 4), when the main control chip detects that the burner switch of the 1 st or 4 th pin is turned off, the 5 th or 8 th pin is immediately turned off by pulling up, ignition is stopped, and the 6 th or 7 th pin is turned off after the set valve suction time is over.
The first path of ignition units are in a simultaneous ignition mode, and the second path of ignition units are in an independent ignition mode.
Referring to FIGS. 7-11, timing diagrams in different modes are known and R is set KL ＝10K。
When the main control chip detects that the valve suction time is over, the main control chip stops working and enters a standby state.
Referring to fig. 12, in the step 2), when the main control chip does not detect the power supply, the left switch input terminal is set to be high level within the 30ms stable time of power-up, and the main control chip automatically recognizes that the longest ignition time and suction valve time are adopted.
A resistor R is connected between the left ignition input end and the ground KL Through resistance R KL Changing ignition time and valve suction time; a resistor R is connected between the right ignition input end and the ground KRL Through resistance R KR The ignition time and the suction valve time are changed.
The above examples illustrate only one embodiment of the invention, which is described in more detail and is not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A stove pulse integrated circuit, comprising:
the main control chip is connected with the power supply, the ignition switch and the adsorption switch and provided with a left ignition switch input end, a right ignition switch input end, a left ignition output end, a right ignition output end, a left suction valve output end and a right suction valve output end, and receives and transmits clock pulse signals;
the ignition unit is connected with the left ignition switch input end, the right ignition switch input end, the left ignition output end and the right ignition output end and used for executing pulse signals;
a resistor R KL And the left pointThe fire switch input end is connected and used for controlling the ignition unit;
a resistor R KR Is connected with the input end of the right ignition switch and is used for controlling the ignition unit.
2. The stove pulse integrated circuit of claim 1, wherein the ignition unit comprises a left ignition unit and a right ignition unit, the left ignition unit of the first path of ignition unit is connected in series with the right ignition unit and is connected with the left ignition output terminal, the left ignition unit of the second path of ignition unit is connected in series with the left ignition output terminal, and the right ignition unit is connected in series with the right ignition output terminal.
3. The stove pulse integrated circuit of claim 2, wherein the 1 st pin of the main control chip is a right ignition switch input end, the 4 th pin is a left ignition switch input end, the 5 th pin is a left ignition output end, the 8 th pin is a right ignition output end, the 6 th pin is a left suction valve output end, the 7 th pin is a right suction valve output end, the 1 st pin, the 7 th pin and the 8 th pin of the main control chip are connected with a right ignition unit, the 4 th pin, the 5 th pin and the 6 th pin of the main control chip are connected with a left ignition unit, the 2 nd pin of the main control chip is connected with a power supply, and the 3 rd pin of the main control chip is grounded.
4. The stove pulse integrated circuit according to claim 2, wherein the ignition unit is further connected with an oscillation boosting module, the oscillation boosting module is respectively connected with the left ignition output end and the right ignition output end, the oscillation boosting module comprises a transformer T1, a triode Q1 and a capacitor C5, a collector of the triode Q1 is connected with a power supply, a base of the triode Q1 is connected with the capacitor C5, and an emitter of the triode Q1 is connected with the transformer T1.
5. The stove pulse integrated circuit according to claim 4, wherein a power supply battery reverse connection protection module is arranged in the main control chip to prevent the chip from being damaged.
6. A method for controlling ignition of a stove, comprising:
step 1), a main control chip stores ignition mode information, ignition delay information and valve suction delay information;
step 2) the main control chip is powered on to detect whether the right ignition output end has a resistor R SE When the fire is in the ground, the fire enters a first path of ignition unit, the right ignition output end is set to be at a low level, then the stove enters a standby state, and if not, the fire enters a second ignition unit, and then the stove enters the standby state;
step 3), after detecting that any furnace end switch in the first path of ignition unit is closed and after the debounce time of 150ms is set in the main control chip, the main control chip pulls down the left suction valve output end and the right suction valve output end, the pull-down current is 150mA, the corresponding suction valve switch is opened, and meanwhile, the main control chip pulls down the left ignition output end, the pull-down current is 20mA, and ignition is started;
step 4), after detecting that one furnace end switch in the second path ignition unit is closed and after the debounce time of 150ms is set in the main control chip, the main control chip pulls down the corresponding left or right suction valve output end, the pull-down current is 150mA, the corresponding suction valve switch is opened, and meanwhile, the main control chip pulls down the left or right ignition output end, the pull-down current is 20mA, and ignition is started.
7. The method according to claim 6, wherein in the step 3), when the main control chip detects that the burner switches corresponding to the left and right ignition inputs are turned off, the left ignition output is immediately turned off by pulling up, the ignition is stopped, and the valve suction switches of the left and right valve suction outputs are turned off after the set valve suction time is completed.
8. The method according to claim 6, wherein in the step 4), when the main control chip detects that the burner switch of the 1 st or 4 th pin is turned off, the 5 th or 8 th pin is immediately turned off by pulling up, the ignition is stopped, and the 6 th or 7 th pin is turned off after the set valve suction time is completed.
9. The method according to claim 7 or 8, wherein when the main control chip detects that the valve suction time is over, the main control chip stops operating and enters a standby state.
10. The method according to claim 6, wherein in the step 2), when the main control chip does not detect the power source, the left switch input terminal is set to high level within the 30ms stable time of power-up, and the main control chip automatically recognizes that the longest ignition time and suction valve time are adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111290602.1A CN114046542B9 (en) | 2021-11-02 | 2021-11-02 | Stove pulse integrated circuit and stove ignition control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111290602.1A CN114046542B9 (en) | 2021-11-02 | 2021-11-02 | Stove pulse integrated circuit and stove ignition control method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| CN114046542A CN114046542A (en) | 2022-02-15 |
| CN114046542B true CN114046542B (en) | 2023-10-17 |
| CN114046542B9 CN114046542B9 (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111290602.1A Active CN114046542B9 (en) | 2021-11-02 | 2021-11-02 | Stove pulse integrated circuit and stove ignition control method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH340467A (en) * | 1956-03-03 | 1959-08-31 | Bosch Gmbh Robert | Gas device with several burners and magneto |
| CN203980358U (en) * | 2014-06-03 | 2014-12-03 | 上海市五四中学 | Gas cooker safety energy-saving device |
| CN110671725A (en) * | 2019-09-26 | 2020-01-10 | 浙江新涛电子科技有限公司 | Multi-burner ignition control system and method |
| CN111396934A (en) * | 2020-03-26 | 2020-07-10 | 广东百威电子有限公司 | Pulse ignition controller and ignition delay control method for dual-delay thermoelectric type kitchen range |
-
2021
- 2021-11-02 CN CN202111290602.1A patent/CN114046542B9/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH340467A (en) * | 1956-03-03 | 1959-08-31 | Bosch Gmbh Robert | Gas device with several burners and magneto |
| CN203980358U (en) * | 2014-06-03 | 2014-12-03 | 上海市五四中学 | Gas cooker safety energy-saving device |
| CN110671725A (en) * | 2019-09-26 | 2020-01-10 | 浙江新涛电子科技有限公司 | Multi-burner ignition control system and method |
| CN111396934A (en) * | 2020-03-26 | 2020-07-10 | 广东百威电子有限公司 | Pulse ignition controller and ignition delay control method for dual-delay thermoelectric type kitchen range |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114046542A (en) | 2022-02-15 |
| CN114046542B9 (en) | 2024-01-19 |
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| CI03 | Correction of invention patent |
Correction item: Claims Correct: Claims 1-8 submitted on August 16, 2023 False: Claims 1-10 submitted on the application date Number: 42-01 Page: ?? Volume: 39 |
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| CI03 | Correction of invention patent |