WO2018072051A1 - 一种智能控温控时燃气灶 - Google Patents

一种智能控温控时燃气灶 Download PDF

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Publication number
WO2018072051A1
WO2018072051A1 PCT/CN2016/000581 CN2016000581W WO2018072051A1 WO 2018072051 A1 WO2018072051 A1 WO 2018072051A1 CN 2016000581 W CN2016000581 W CN 2016000581W WO 2018072051 A1 WO2018072051 A1 WO 2018072051A1
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Prior art keywords
gas
fire
valve
control unit
electronic control
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PCT/CN2016/000581
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English (en)
French (fr)
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肖湘茂
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肖湘茂
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Priority to CN201690001716.6U priority Critical patent/CN210688325U/zh
Priority to PCT/CN2016/000581 priority patent/WO2018072051A1/zh
Publication of WO2018072051A1 publication Critical patent/WO2018072051A1/zh

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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

Definitions

  • the invention relates to an application of an electromechanical integrated automatic control technology in a gas stove.
  • the object of the present invention is to provide an intelligent temperature control and control gas stove for overcoming the problem that the existing gas stove cannot intelligently control the cooking time and cooking temperature of the gas stove.
  • the technical solution provided by the invention comprises an intelligent temperature control time control device, a burner head, a fire frame and a gas stove casing to form an intelligent temperature control time control gas stove.
  • the utility model is characterized in that: the gas valve assembly, the power switch, the charger, the rechargeable battery, the pulse generator, the electronic control unit, the thermocouple, the pot temperature sensor and the pulse ignition needle constitute an intelligent temperature control device; or the fire supply pipe Road solenoid valve, small fire gas supply line solenoid valve, total solenoid valve, power switch, charger, rechargeable battery, pulse generator, electronic control unit, thermocouple, pot temperature sensor, pulse ignition needle constitute intelligent temperature control device .
  • the gas valve assembly is composed of a gas inlet pipe, a total solenoid valve, a stepping motor, a manual knob, a small fire gas nozzle, a large fire gas nozzle, a gas valve seat, a gas valve core, a gas valve cover, a stepping motor gear, and a middle.
  • the stepping motor is located on one side of the gas valve seat, the stepping motor gear is meshed with the intermediate transmission gear, and the intermediate transmission gear is meshed with the gas valve core gear.
  • the total solenoid valve is laid flat and connected to the gas valve seat, and is at an acute angle with the extension of the extension line of the small fire gas nozzle.
  • the gas inlet pipe is disposed on the total solenoid valve and communicates with the total solenoid valve.
  • a spool inlet hole and a spool inlet trap hole are opened in the middle of the gas valve core side, and a spool outlet hole and a spool outlet hole are opened in the middle of the other side of the gas valve core;
  • the gas round hole and the valve core intake trapezoidal slot are connected in parallel; the valve core outlet hole and the valve core outlet square hole are connected in parallel; the valve core intake hole and the valve core intake trapezoidal slot combination regulate the gas supply amount size.
  • the stepper motor is electrically connected to the electronic control unit.
  • the total solenoid valve is electrically connected to the electronic control unit.
  • the manual signal switch is electrically connected to the electronic control unit.
  • the electronic control unit is composed of a single chip microcomputer, a display screen, a key, a stepping motor driver, a solenoid valve driving circuit, a thermocouple circuit relay, and an ignition control circuit.
  • the electronic control unit sets cooking, porridge, boiled dumplings, steamed meat, steamed buns, stew, soup, boiled water, barbecue, fried and various cooking methods and their control procedures.
  • the pot temperature sensor is located in the center of the burner and is electrically connected to the electronic control unit; the thermocouple is located in the small burner Between the fire ring and the large fire ring, and electrically connected to the electronic control unit.
  • the pulse ignition needle is located between the small fire ring and the large fire ring of the burner and is electrically connected to the pulse generator.
  • the charger is connected to the mains power supply and is electrically connected to the rechargeable battery. The charger and rechargeable battery are switched on or off by a linkage switch. The positive pole of the rechargeable battery is electrically connected to the pulse generator and the electronic control unit via a low voltage power line.
  • the electronic control unit adjusts the gas supply amount to control the fire level by rotating the gas valve core through the stepping motor according to a specific cooking program; or adjusts the fire level by opening or closing the solenoid valve of the large fire supply line. And determining the cooking time according to the following proportional time control method: the electronic control unit confirms the time point at which the water has boiled or the time point at which the pressure cooker starts to eject according to the temperature value transmitted from the pot temperature sensor, and reduces the time point to start the cooking time point.
  • the electronic control unit presets the cooking time of the fire in the further cooking time according to the current cooking mode, the cooking time of the medium fire, the proportion of the cooking time of the small fire, the size of the fire and the length of the cooking time. , complete the cooking task.
  • the electronic control unit determines whether to dry or burn according to the temperature of the bottom of the pot sent by the pot temperature sensor.
  • the electronic control unit When dry, the electronic control unit closes the total solenoid valve and buzzes. When the gas flame is accidentally extinguished and the thermocouple is turned off, the total solenoid valve is closed. When the rechargeable battery is de-energized, the total solenoid valve is closed. When the electronic control unit fails, the main solenoid valve closes.
  • the invention has the function of automatically completing the cooking task, and also has a scheduled time cooking function, which liberates the user from the busy cooking affairs. Because the cooking process is based on the fire experience summarized by the cooking experts, using fire, medium heat, and small fire alternately, the cooking time is also strictly controlled according to the fire requirements.
  • the cooked food is neither burnt nor cooked. It is delicious and delicious, especially the method of frying is to control the oil temperature intelligently, which greatly reduces the harmful substances and the destruction of nutrients in fried foods. Due to the intelligent control of the heat and cooking time, the cooking food does not overheat the fire, thus saving gas. At the same time, the present invention is also capable of cooking by hand.
  • Figure 1 is a plan view of Embodiment 1 and Embodiment 2;
  • Figure 2 is a structural view of an electronic system and a gas system of the first embodiment
  • Figure 3 is a front elevational view of the gas valve assembly of the first embodiment
  • Figure 4 is a plan view of the gas valve assembly of the first embodiment
  • Figure 5 is a structural view of the A-A section of Figure 4 when it is automatically controlled;
  • Figure 6 is a structural view of the A-A section of Figure 4 when manually controlled;
  • Figure 7 is a cross-sectional view taken along line B - B of Figure 6;
  • Figure 8 is a cross-sectional view taken along line C - C of Figure 7;
  • Figure 9 is a cross-sectional view taken along line D - D of Figure 7;
  • Figure 10 is a plan view of the gas valve assembly of the first embodiment after the gas valve cover is removed;
  • Figure 11 is a structural diagram of a single burner electronic system and a gas system of the second embodiment
  • FIG. 100 Gas valve assembly, 101. Gas inlet tube, 102. Total solenoid valve, 103. Stepper motor, 104. Manual knob, 105. Small fire gas nozzle, 106. Large fire gas nozzle, 107. Gas Valve cover, 108. Stepper motor gear, 109. Intermediate drive gear, 110. Gas spool gear, 111. Gas spool connection, 112. Gas spool groove, 113. Gas spool compression spring, 114. Manual Signal switch, 115. gas valve seat, 116. gas valve core, 117. spool hollow, 118. valve seat outlet to small round hole, 119. spool inlet hole, 120. valve seat inlet hole, 121. Spool intake trapezoidal slot, 122.
  • Spool small fire intake hole 123.
  • Spool outlet hole 124.
  • Spool outlet square hole 125.
  • Valve seat outlet to large fire hole 2. Power switch , 3. Charger, 4. Rechargeable battery, 5. Low voltage power line, 6. Pulse generator, 7. Electronic control unit, 8. Thermocouple, 9. Pot temperature sensor, 10. Pulse ignition needle, 11. Burner , 12. Fire frame, 13. Gas stove shell, 14. Burner B, 15. Manual knob B, 16. Electronic control unit B, 17. Thermocouple B, 18. Pot temperature sensor B, 19. Pulse ignition needle B , 20.
  • Gas valve total B 21 A fire air supply line solenoid valve, 22 fire air supply line solenoid valve B, 23 small fire air supply line solenoid valve 24. Gas valve manually.
  • the gas valve assembly (100) is composed of a gas inlet pipe (101), a total solenoid valve (102), a stepping motor (103), a manual knob (104), a small fire gas nozzle (105), and a large fire gas nozzle ( 106), the gas valve seat (115), the valve seat outlet gas to the small round hole (118), the valve seat outlet gas to the large fire round hole (125), the valve seat intake round hole (120), the gas valve core (116), The valve core inlet hole (119), the valve core intake trapezoidal slot (121), the spool small fire inlet hole (122), the spool outlet hole (123), the spool outlet hole (124), Spool hollow (117), gas valve cover (107), stepper motor gear (108), intermediate drive gear (109), gas spool gear (110), gas spool connection port (111), gas spool The slot (112), the gas spool compression spring (113), and the manual signal switch (114) are composed.
  • the stepping motor (103) is located on the side of the gas valve seat (115), the stepping motor gear (108) is meshed with the intermediate transmission gear (109), the intermediate transmission gear (109) and the gas valve
  • the core gear (110) is toothed.
  • the total solenoid valve (102) is placed in parallel with the gas valve seat (115) and is at an angle of 58 degrees to the extension of the small fire gas nozzle (105).
  • a gas inlet pipe (101) is disposed on the total solenoid valve (102) and is in communication with the total solenoid valve (102).
  • a valve seat inlet hole (120) is opened in the middle of the gas valve seat (115) side, and a valve seat is opened in the middle of the gas valve seat (115) to the large fire hole (125) and near the bottom of the valve seat.
  • a spool inlet hole (119) and a spool intake trap (121) are opened in the middle of the gas valve core (116), and a spool outlet is opened in the middle of the other side of the gas spool (116).
  • the hole (123) and the valve core outlet hole (124); the valve core inlet hole (119) and the valve core intake trapezoidal slot (121) are connected in parallel; the spool outlet hole (123) and the spool outlet
  • the square hole (124) is connected in parallel; a small spool air inlet hole (122) is opened between the spool outlet hole (123) and the spool intake trapped slot (121).
  • the stepper motor (103) is electrically connected to the electronic control unit (7).
  • the total solenoid valve (102) is electrically connected to the electronic control unit (7).
  • the manual signal switch (114) is electrically coupled to the electronic control unit (7).
  • the electronic control unit (7) is composed of a single chip microcomputer, a display screen, a key, a stepping motor driver, a solenoid valve driving circuit, a thermocouple circuit relay, and an ignition control circuit.
  • the pot temperature sensor (9) is located in the center of the burner (11) and is electrically connected to the electronic control unit (7).
  • the thermocouple (8) is located between the small fire ring and the large fire ring of the burner and is electrically connected to the electronic control unit (7).
  • the pulse ignition needle (10) is located between the small fire ring and the large fire ring of the burner and is electrically connected to the pulse generator (6).
  • the pulse generator (6) is electrically connected to the electronic control unit (7).
  • the charger (3) is externally connected to a 220V power supply and is electrically connected to the rechargeable battery (4). The charger (3) and the rechargeable battery (4) are switched on or off by a linkage switch (2).
  • the positive pole of the rechargeable battery (4) is electrically connected to the pulse generator (6) and the electronic control unit (7) and the electronic control unit B (16) via a low voltage power line (5).
  • the pulse ignition pin B (19) is electrically connected to the pulse generator (6).
  • the pot temperature sensor B (18) is electrically connected to the electronic control unit B (16).
  • the thermocouple B (17) is electrically connected to the electronic control unit B (16).
  • the pulse generator (6) is electrically connected to the electronic control unit B (16).
  • the gas spool connection port (111) is separated from the gas spool groove (112) by the elastic force of the gas spool compression spring (113).
  • the electronic control unit (7) starts pulse ignition according to a specific cooking program, opens the total solenoid valve (102) and the gas valve core (116), and the gas enters the large fire gas nozzle (106) and the small fire gas nozzle (105).
  • the pulse ignition needle (10) stops working and the gas stove enters a normal working state.
  • the electronic control unit (7) accepts the temperature of the bottom of the pot and the requirements of the food to be cooked at any time, and rotates the gas valve core (116) through the stepping motor (103) to adjust the gas supply amount to control the fire level.
  • the cooking time of each cooking stage is determined according to the proportional time control method.
  • the gas valve core (116) is rotated by the stepping motor (103), so that the valve core inlet hole (119) is aligned with the valve seat inlet hole (120), and the gas enters the total solenoid valve through the gas inlet pipe (101). (102), through the valve seat inlet hole (120), the valve core inlet hole (119), the valve core outlet hole (123), the valve seat outlet gas to the large fire hole (125) into the fire gas nozzle (106), cooking on fire.
  • the stepping motor (103) turns the gas valve core (116) again.
  • the spool intake trapezoidal slot (121) is aligned with the valve seat intake circular hole (120), the gas passes through the valve seat intake circular hole (120), the spool intake trapezoidal slot (121), The valve core outlet square slot (124), the valve seat outlet gas to the large fire round hole (125) into the large fire gas nozzle (106), for medium fire cooking.
  • the gas valve core (116) left and right to adjust the fire steplessly or large.
  • the stepping motor (103) rotates the gas valve core (116) at an angle to align the spool small fire inlet hole (122) with the valve seat intake round hole (120), the valve seat The gas outlet to the large fire hole (125) is blocked, and the gas enters the small fire gas nozzle (105) through the hollow (117) of the valve core and the valve seat to the small fire hole (118) for small fire cooking.
  • the stepping motor (103) reversely rotates the gas valve core (116) to block the valve seat intake hole (120) to close the gas valve.
  • the manual signal switch (114) is turned on by the manual knob (104), and the electronic control unit (7) stops the stepping motor (103) according to the signal that the manual signal switch (114) is turned on;
  • the pulse ignition needle (10) is started to ignite; at the same time, the hand push gas valve plug port (111) is inserted into the gas valve core groove (112) to rotate the gas valve core (116) to open the gas valve.
  • the thermocouple (8) generates a current
  • the pulse ignition stops and the gas stove enters a normal working state.
  • the gas valve spool (116) is rotated by the manual knob (104) to adjust the gas supply amount to change the fire level.
  • the electronic control unit (7) activates the thermocouple (8) to prevent accidental flameout, and activates the pot temperature sensor (9) to prevent dry burning and anti-air burning.
  • the electronic control unit (7) is composed of a single chip microcomputer, a display screen, a key, a solenoid valve driving circuit, a thermocouple circuit relay, and an ignition control circuit.
  • the total solenoid valve (102) is located behind the gas inlet pipe (101).
  • the intake port of the solenoid valve A (21) of the fire supply line, the intake port of the solenoid valve B (22) of the large fire supply line, and the intake port of the solenoid valve (23) of the small fire supply line are respectively connected with the total solenoid valve ( 102) Connected.
  • the air outlet of the solenoid valve A (21) of the fire supply line and the air outlet of the solenoid valve B (22) of the large fire supply line are respectively connected with the large gas nozzle (106).
  • the air outlet of the small fire supply line solenoid valve (23) is in communication with the small fire gas nozzle (105).
  • the intake port of the manual gas valve (24) is in communication with the total solenoid valve (102), and the air outlet of the manual gas valve (24) is in communication with the large fire gas nozzle (106) and the small fire gas nozzle (105), respectively.
  • the total solenoid valve (102) is electrically connected to the electronic control unit (7).
  • the fire supply valve solenoid valve (21), the large fire supply line solenoid valve B (22), and the small fire supply line solenoid valve (23) are electrically connected to the electronic control unit (7), respectively.
  • the manual gas valve (24) is off.
  • the electronic control unit (7) starts pulse ignition according to the specific cooking program, opens the total electromagnetic valve (102), the large fire supply line solenoid valve A (21), the large fire supply line solenoid valve B (22) and the small fire supply pipe
  • the road solenoid valve (23) the gas enters the large fire gas nozzle (106) and the small fire gas nozzle (105).
  • the pulse ignition needle (10) stops working and the gas stove enters a normal working state.
  • the electronic control unit (7) accepts the temperature of the bottom of the pot and the requirements of the food being cooked at any time by turning off or opening the solenoid valve (21) of the fire supply line and/or the solenoid valve of the high fire supply line.
  • B (22) adjusts the gas supply to control the fire.
  • the cooking time is adjusted according to the specific cooking program and the proportional time control method to complete the cooking task.
  • the large fire supply line solenoid valve A (21), the large fire supply line solenoid valve B (22), and the small fire supply line solenoid valve (23) are all closed.
  • the gas enters the large fire gas nozzle (106) and the small fire gas nozzle (105) through the manual gas valve (24). Turn the manual gas valve (24) to adjust the gas supply to change the fire.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

一种智能控温控时燃气灶，由燃气阀总成（100），电子控制单元（7），热电偶（8），锅温传感器（9），脉冲点火针（10）组成智能控温控时装置；或者由总电磁阀（102），大火供气管路电磁阀（21，22），小火供气管路电磁阀（23），电子控制单元（7），热电偶（8），锅温传感器（9），脉冲点火针（10）组成智能控温控时装置。燃气阀总成（100）是由总电磁阀（102），步进电机（103），手动旋钮（104），燃气阀座（115），燃气阀芯（116），步进电机齿轮（108），燃气阀芯齿轮（110），燃气阀芯连接榫（111），燃气阀芯凹槽（112），手动信号开关（114）组成。由电子控制单元（7）指令步进电机（103）转动燃气阀芯（116）控制燃气供给量和烹饪时间，或者由电子控制单元（7）指令大、小火供气管路电磁阀（21，22，23）开/关调节燃气供给量和烹饪时间。该燃气灶并且能够手动烹饪。

Description

一种智能控温控时燃气灶 技术领域
本发明涉及一种机电一体自动控制技术在燃气灶的应用。
背景技术
目前，大部分燃气灶是由手动来控制燃气供给量调整火势大小和燃烧时间，人必须时刻守着燃气灶，稍有不慎，就会发生饭烧糊的事情，或者水烧干的情况。有的燃气灶虽然设有定时装置，但需要人工确定烹饪时间，不能智能控制燃气灶烹饪时间和烹饪温度。
发明内容
本发明的目的在于：为克服现有燃气灶不能智能控制燃气灶烹饪时间和烹饪温度的问题，提供一种智能控温控时燃气灶。
为实现上述目的，本发明提供的技术方案是由智能控温控时装置，炉头，火架，燃气灶外壳组成一种智能控温控时燃气灶。其特征是：由燃气阀总成、电源开关、充电器、充电电池、脉冲发生器、电子控制单元、热电偶、锅温传感器、脉冲点火针组成智能控温控时装置；或者由大火供气管路电磁阀、小火供气管路电磁阀、总电磁阀、电源开关、充电器、充电电池、脉冲发生器、电子控制单元、热电偶、锅温传感器、脉冲点火针组成智能控温控时装置。
燃气阀总成是由燃气入口管、总电磁阀、步进电机、手动旋钮、小火燃气喷管、大火燃气喷管、燃气阀座、燃气阀芯、燃气阀盖、步进电机齿轮、中间传动齿轮、燃气阀芯齿轮、燃气阀芯连接榫、燃气阀芯凹槽、燃气阀芯压缩弹簧、手动信号开关组成。步进电机位于燃气阀座一侧，步进电机齿轮与中间传动齿轮齿合，中间传动齿轮与燃气阀芯齿轮齿合。总电磁阀平放与燃气阀座相连且相通，并与小火燃气喷管的延长线的夹角成锐角。燃气入口管设在总电磁阀上且与总电磁阀相通。在燃气阀芯一侧中部开一个阀芯进气圆孔和一个阀芯进气梯形槽孔，在燃气阀芯另一侧中部开一个阀芯出气圆孔和阀芯出气方孔；阀芯进气圆孔和阀芯进气梯形槽孔并接连通；阀芯出气圆孔和阀芯出气方孔并接连通；由阀芯进气圆孔和阀芯进气梯形槽孔组合调控燃气供给量大小。步进电机与电子控制单元电连接。总电磁阀与电子控制单元电连接。手动信号开关与电子控制单元电连接。
电子控制单元由单片机、显示屏、键、步进电机驱动器、电磁阀驱动电路、电热偶电路继电器、点火控制电路组成。电子控制单元设置煮饭、煮粥、煮饺子、蒸肉、蒸馒头、炖肉、煲汤、烧开水、烧烤、油炸多种烹饪方式及其控制程序。
锅温传感器位于炉头中心，并与电子控制单元电连接；热电偶位于炉头小 火环与大火环之间，并与电子控制单元电连接。脉冲点火针位于炉头小火环与大火环之间，并与脉冲发生器电连接。充电器外接市电电源，并与充电电池电连接。充电器和充电电池由一个联动开关负责开或关。充电电池的正极通过低压电源线与脉冲发生器和电子控制单元电连接。
在智能烹饪模式时，电子控制单元根据具体的烹饪程序，通过步进电机转动燃气阀芯调节燃气供应量控制火势大小；或者通过大火供气管路电磁阀的开或关来调节火势大小。并根据以下比例控时控温方法确定烹饪时间：电子控制单元根据锅温传感器传来的温度值，确认水已经沸腾的时间点或者高压锅开始喷气的时间点，将该时间点减开始烹饪时间点得到水开时间长度或者高压锅开始喷气时间长度；再根据程序设定的当前烹饪方式水开时间长度或者高压锅开始喷气时间长度，与水开时间点或者高压锅开始喷气时间点至食物烹熟时间点的时间长度之比计算出进一步烹饪时间；然后，电子控制单元根据当前烹饪方式预先设定的进一步烹饪时间里大火烹饪时间，中火烹饪时间，小火烹饪时间的比例，调整火势大小和烹饪时间长短，完成烹饪任务。同时，电子控制单元根据锅温传感器传来的锅底温度判定是否干烧或空烧，当干烧时，电子控制单元关闭总电磁阀，并蜂鸣。当燃气火焰意外熄灭使电热偶断电，总电磁阀关闭。当充电电池断电，总电磁阀关闭。当电子控制单元出现故障，总电磁阀关闭。
在手动烹饪模式时，通过手动旋钮调节燃气供应量改变火势大小。同时，电子控制单元启动电热偶防意外熄火功能，启动锅温传感器防干烧防空烧功能。
有益效果
本发明具有自动完成烹饪任务的功能，同时还有预约定时烹饪功能，使用户从繁忙的烹饪事务中解放出来。由于烹饪过程是按照烹饪专家总结的用火经验使用大火，中火，小火交替进行烹饪，烹饪时间也是严格按照火候要求程序化控制，所烹食物既不会烧焦，也不会未煮熟，而是味美可口，特别是油炸方式采用智能控制油温，大大减少了油炸食品有害物质产生和营养元素的破坏。由于火候和烹饪时间的智能化控制，烹饪食物不会超时过火，从而节约了燃气。同时，本发明还能够用手工操作做菜。
下面结合附图和实施例对本发明进一步说明。
附图说明
图1是实施例一和实施例二的平面图；
图2是实施例一的电子***和燃气***构造图；
图3是实施例一的燃气阀总成主视图；
图4是实施例一的燃气阀总成俯视图；
图5是图4的A——A剖面自动控制时的构造图；
图6是图4的A——A剖面手动控制时的构造图；
图7是图6的B——B断面图；
图8是图7的C——C断面图；
图9是图7的D——D断面图；
图10是实施例一的燃气阀总成去掉燃气阀盖后的俯视图；
图11是实施例二的单炉头电子***和燃气***构造图；
图中100.燃气阀总成，101.燃气入口管，102.总电磁阀，103.步进电机，104.手动旋钮，105.小火燃气喷管，106.大火燃气喷管，107.燃气阀盖，108.步进电机齿轮，109.中间传动齿轮，110.燃气阀芯齿轮，111.燃气阀芯连接榫，112.燃气阀芯凹槽，113.燃气阀芯压缩弹簧，114.手动信号开关，115.燃气阀座，116.燃气阀芯，117.阀芯中空，118.阀座出气至小火圆孔，119.阀芯进气圆孔，120.阀座进气圆孔，121.阀芯进气梯形槽孔，122.阀芯小火进气孔，123.阀芯出气圆孔，124.阀芯出气方孔，125.阀座出气至大火圆孔，2.电源开关，3.充电器，4.充电电池，5.低压电源线，6.脉冲发生器，7.电子控制单元，8.热电偶，9.锅温传感器，10.脉冲点火针，11.炉头，12.火架，13.燃气灶外壳，14.炉头乙，15.手动旋钮乙，16.电子控制单元乙，17.热电偶乙，18.锅温传感器乙，19.脉冲点火针乙，20.燃气阀总成乙，21.大火供气管路电磁阀甲，22.大火供气管路电磁阀乙，23.小火供气管路电磁阀，24.手动燃气阀。
具体实施方式
实施例一，在图1、图2、图3、图4、图5、图6、图7、图8、图9、图10中，由燃气阀总成(100)、电源开关(2)、充电器(3)、充电电池(4)、脉冲发生器(6)、电子控制单元(7)、热电偶(8)、锅温传感器(9)、脉冲点火针(10)、炉头(11)、火架(12)、燃气灶外壳(13)、炉头乙(14)、手动旋钮乙(15)、电子控制单元乙(16)、热电偶乙(17)、锅温传感器乙(18)、脉冲点火针乙(19)、燃气阀总成乙(20)组成一种智能控温控时燃气灶。
燃气阀总成(100)是由燃气入口管(101)、总电磁阀(102)、步进电机(103)、手动旋钮(104)、小火燃气喷管(105)、大火燃气喷管(106)、燃气阀座(115)、阀座出气至小火圆孔(118)、阀座出气至大火圆孔(125)、阀座进气圆孔(120)、燃气阀芯(116)、阀芯进气圆孔(119)、阀芯进气梯形槽孔(121)、阀芯小火进气孔(122)、阀芯出气圆孔(123)、阀芯出气方孔(124)、阀芯中空(117)、燃气阀盖(107)、步进电机齿轮(108)、中间传动齿轮(109)、燃气阀芯齿轮(110)、燃气阀芯连接榫(111)、燃气阀芯凹槽(112)、燃气阀芯压缩弹簧(113)、手动信号开关(114)组成。步进电机(103)位于燃气阀座(115)一侧，步进电机齿轮(108)与中间传动齿轮(109)齿合，中间传动齿轮(109)与燃气阀 芯齿轮(110)齿合。总电磁阀(102)平放与燃气阀座(115)相连且相通，并与小火燃气喷管(105)的延长线成58度的夹角。燃气入口管(101)设在总电磁阀(102)上且与总电磁阀(102)相通。在燃气阀座(115)一侧中部开一个阀座进气圆孔(120)，在燃气阀座(115)另一侧中部开一个阀座出气至大火圆孔(125)和靠近阀座底部开一个阀座出气至小火圆孔(118)。在燃气阀芯(116)一侧中部开一个阀芯进气圆孔(119)和阀芯进气梯形槽孔(121)，在燃气阀芯(116)另一侧中部开一个阀芯出气圆孔(123)和阀芯出气方孔(124)；阀芯进气圆孔(119)和阀芯进气梯形槽孔(121)并接连通；阀芯出气圆孔(123)和阀芯出气方孔(124)并接连通；在阀芯出气圆孔(123)和阀芯进气梯形槽孔(121)之间开一个阀芯小火进气孔(122)。步进电机(103)与电子控制单元(7)电连接。总电磁阀(102)与电子控制单元(7)电连接。手动信号开关(114)与电子控制单元(7)电连接。
电子控制单元(7)由单片机、显示屏、键、步进电机驱动器、电磁阀驱动电路、电热偶电路继电器、点火控制电路组成。
锅温传感器(9)位于炉头(11)中心，并与电子控制单元(7)电连接。热电偶(8)位于炉头小火环与大火环之间，并与电子控制单元(7)电连接。脉冲点火针(10)位于炉头小火环与大火环之间，并与脉冲发生器(6)电连接。脉冲发生器(6)与电子控制单元(7)电连接。充电器(3)外接220V的电源，并与充电电池(4)电连接。充电器(3)和充电电池(4)由一个联动开关(2)负责开或关。充电电池(4)的正极通过低压电源线(5)与脉冲发生器(6)和电子控制单元(7)及电子控制单元乙(16)电连接。脉冲点火针乙(19)与脉冲发生器(6)电连接。锅温传感器乙(18)与电子控制单元乙(16)电连接。电热偶乙(17)与电子控制单元乙(16)电连接。脉冲发生器(6)与电子控制单元乙(16)电连接。
在智能烹饪模式时，燃气阀芯连接榫(111)在燃气阀芯压缩弹簧(113)的弹力作用下与燃气阀芯凹槽(112)处于分离状态。电子控制单元(7)根据具体的烹饪程序，开始脉冲点火，打开总电磁阀(102)和燃气阀芯(116)，燃气进入大火燃气喷管(106)和小火燃气喷管(105)。当电热偶(8)产生电流后，脉冲点火针(10)停止工作，燃气灶进入正常工作状态。电子控制单元(7)随时接受锅温传感器(9)传来的锅底温度和所烹饪食物的要求，通过步进电机(103)转动燃气阀芯(116)调节燃气供给量控制火势大小。并根据比例控时控温方法确定各烹饪阶段的烹饪时间。通过步进电机(103)转动燃气阀芯(116)，使阀芯进气圆孔(119)与阀座进气圆孔(120)对准，燃气通过燃气入口管(101)进入总电磁阀(102)，再通过阀座进气圆孔(120)、阀芯进气圆孔(119)、阀芯出气圆孔(123)、阀座出气至大火圆孔(125)进入大火燃气喷管(106)，进行大火烹饪。大火烹饪时间达到后，步进电机(103)再转动燃气阀芯(116)一 个角度，使阀芯进气梯形槽孔(121)与阀座进气圆孔(120)对准，燃气通过阀座进气圆孔(120)、阀芯进气梯形槽孔(121)、阀芯出气方形槽孔(124)、阀座出气至大火圆孔(125)进入大火燃气喷管(106)，进行中火烹饪。在中火烹饪期间，根据锅温的需要，左右转动燃气阀芯(116)，将火无级调小或调大。中火烹饪时间达到后，步进电机(103)再转动燃气阀芯(116)一个角度，使阀芯小火进气孔(122)与阀座进气圆孔(120)对准，阀座出气至大火圆孔(125)被堵住，燃气通过阀芯中空(117)和阀座出气至小火孔(118)进入小火燃气喷管(105)，进行小火烹饪。总烹饪时间达到要求后，步进电机(103)反向转动燃气阀芯(116)堵住阀座进气圆孔(120)关闭燃气阀。同时，电子控制单元(7)根据锅温传感器(9)传来的锅底温度判定是否干烧或空烧，当干烧时，关闭总电磁阀(102)和燃气阀芯(116)，并蜂鸣。当燃气火焰意外熄灭使电热偶(8)断电，总电磁阀(102)关闭。当充电电池(4)断电，总电磁阀(102)关闭。当电子控制单元(7)出现故障，总电磁阀(102)关闭。
快速短按2次具体烹饪方式键后，进入相应烹饪方式的烹饪总时间调整，接着按+号或-号键进行烹饪总时间调整。再短按该烹饪键确认。
长按具体烹饪方式键，开始预约时间烹饪。
长按具体烹饪方式键后，紧接着按+号或-号键，进入相应烹饪方式的预约烹饪时间调整。再次短按该烹饪方式键确认。
长按油炸键后，紧接着按+号或-号键，进入油炸温度调整。再短按油炸键确认。
在手动烹饪模式时，通过手动旋钮(104)推动手动信号开关(114)接通，电子控制单元(7)根据手动信号开关(114)接通的信号，让步进电机(103)停止工作；启动脉冲点火针(10)点火；同时，手推动燃气阀芯连接榫(111)***燃气阀芯凹槽(112)转动燃气阀芯(116)打开燃气阀。当热电偶(8)产生电流后，脉冲点火停止，燃气灶进入正常工作状态。通过手动旋钮(104)转动燃气阀芯(116)调节燃气供应量改变火势大小。同时，电子控制单元(7)启动电热偶(8)防意外熄火功能，启动锅温传感器(9)防干烧防空烧功能。
实施例二，在图1、图11中，由燃气入口管(101)、总电磁阀(102)、小火燃气喷管(105)、大火燃气喷管(106)、充电器(3)、充电电池(4)、低压电源线(5)、脉冲发生器(6)、电子控制单元(7)、热电偶(8)、锅温传感器(9)、脉冲点火针(10)、大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)、小火供气管路电磁阀(23)、手动燃气阀(24)、炉头(11)、电源开关(2)、火架(12)、燃气灶外壳(13)组成一种智能控温控时燃气灶。
电子控制单元(7)由单片机、显示屏、键、电磁阀驱动电路、电热偶电路继电器、点火控制电路组成。
总电磁阀(102)位于燃气入口管(101)之后。大火供气管路电磁阀甲(21)的进气口、大火供气管路电磁阀乙(22)的进气口、小火供气管路电磁阀(23)的进气口分别与总电磁阀(102)连通。大火供气管路电磁阀甲(21)的出气口、大火供气管路电磁阀乙(22)的出气口分别与大火燃气喷管(106)连通。小火供气管路电磁阀(23)的出气口与小火燃气喷管(105)连通。手动燃气阀(24)的进气口与总电磁阀(102)连通，手动燃气阀(24)的出气口分别与大火燃气喷管(106)和小火燃气喷管(105)连通。总电磁阀(102)与电子控制单元(7)电连接。大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)、小火供气管路电磁阀(23)分别与电子控制单元(7)电连接。
在智能烹饪模式时，手动燃气阀(24)处于关闭状态。电子控制单元(7)根据具体的烹饪程序，开始脉冲点火，打开总电磁阀(102)、大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)和小火供气管路电磁阀(23)，燃气进入大火燃气喷管(106)和小火燃气喷管(105)。当电热偶(8)产生电流后，脉冲点火针(10)停止工作，燃气灶进入正常工作状态。电子控制单元(7)随时接受锅温传感器(9)传来的锅底温度和所烹饪食物的要求，通过关闭或打开大火供气管路电磁阀甲(21)和/或大火供气管路电磁阀乙(22)调节燃气供给量控制火势大小。并根据设定的具体烹饪程序和比例控时控温方法调整烹饪时间，完成烹饪任务。
在手动烹饪模式时，大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)、小火供气管路电磁阀(23)全部关闭。燃气通过手动燃气阀(24)进入大火燃气喷管(106)和小火燃气喷管(105)。转动手动燃气阀(24)调节燃气供应量改变火势大小。

Claims (3)

  1. 一种智能控温控时燃气灶，包括智能控温控时装置，炉头，火架，燃气灶外壳；其特征在于：由燃气阀总成、电源开关、充电器、充电电池、脉冲发生器、电子控制单元、热电偶、锅温传感器、脉冲点火针组成智能控温控时装置；或者由大火供气管路电磁阀、小火供气管路电磁阀、总电磁阀、电源开关、充电器、充电电池、脉冲发生器、电子控制单元、热电偶、锅温传感器、脉冲点火针组成智能控温控时装置；
    燃气阀总成是由燃气入口管、总电磁阀、步进电机、手动旋钮、小火燃气喷管、大火燃气喷管、燃气阀座、燃气阀芯、燃气阀盖、步进电机齿轮、中间传动齿轮、燃气阀芯齿轮、燃气阀芯连接榫、燃气阀芯凹槽、燃气阀芯压缩弹簧、手动信号开关组成；步进电机位于燃气阀座一侧，步进电机齿轮与中间传动齿轮齿合，中间传动齿轮与燃气阀芯齿轮齿合；总电磁阀平放与燃气阀座相连且相通，并与小火燃气喷管的延长线的夹角成锐角；燃气入口管设在总电磁阀上且与总电磁阀相通；在燃气阀芯一侧中部开一个阀芯进气圆孔和一个阀芯进气梯形槽孔，在燃气阀芯另一侧中部开一个阀芯出气圆孔和阀芯出气方孔；阀芯进气圆孔和阀芯进气梯形槽孔并接连通；阀芯出气圆孔和阀芯出气方孔并接连通；由阀芯进气圆孔和阀芯进气梯形槽孔组合调控燃气供给量大小；步进电机与电子控制单元电连接；总电磁阀与电子控制单元电连接；手动信号开关与电子控制单元电连接；
    电子控制单元由单片机、显示屏、键、步进电机驱动器、电磁阀驱动电路、电热偶电路继电器、点火控制电路组成；电子控制单元设置煮饭、煮粥、煮饺子、蒸肉、蒸馒头、炖肉、煲汤、烧开水、烧烤、油炸多种烹饪方式及其控制程序；
    锅温传感器位于炉头中心，并与电子控制单元电连接；热电偶位于炉头小火环与大火环之间，并与电子控制单元电连接；脉冲点火针位于炉头小火环与大火环之间，并与脉冲发生器电连接；充电器外接市电电源，并与充电电池电连接；充电器和充电电池由一个联动开关负责开或关；充电电池的正极通过低压电源线与脉冲发生器和电子控制单元电连接；
    在智能烹饪模式时，电子控制单元根据具体的烹饪程序，通过步进电机转动燃气阀芯调节燃气供应量控制火势大小；或者通过大火供气管路电磁阀的开或关来调节火势大小；并根据以下比例控时控温方法确定烹饪时间：电子控制单元根据锅温传感器传来的温度值，确认水已经沸腾的时间点或者高压锅开始喷气的时间点，将该时间点减开始烹饪时间点得到水开时间长度或者高压锅开始喷气时间长度；再根据程序设定的当前烹饪方式水开时间长度或者高压锅开始喷气时间长度，与水开时间点或者高压锅开始喷气时间点至食物烹熟时间点 的时间长度之比计算出进一步烹饪时间；然后，电子控制单元根据当前烹饪方式预先设定的进一步烹饪时间里大火烹饪时间，中火烹饪时间，小火烹饪时间的比例，调整火势大小和烹饪时间长短，完成烹饪任务；同时，电子控制单元根据锅温传感器传来的锅底温度判定是否干烧或空烧，当干烧时，电子控制单元关闭总电磁阀，并蜂鸣；当燃气火焰意外熄灭使电热偶断电，总电磁阀关闭；当充电电池断电，总电磁阀关闭；当电子控制单元出现故障，总电磁阀关闭；
    在手动烹饪模式时，通过手动旋钮调节燃气供应量改变火势大小；同时，电子控制单元启动电热偶防意外熄火功能，启动锅温传感器防干烧防空烧功能。
  2. 根据权利要求1所述一种智能控温控时燃气灶，其特征在于：由燃气阀总成(100)、电源开关(2)、充电器(3)、充电电池(4)、脉冲发生器(6)、电子控制单元(7)、热电偶(8)、锅温传感器(9)、脉冲点火针(10)、炉头(11)、火架(12)、燃气灶外壳(13)、炉头乙(14)、手动旋钮乙(15)、电子控制单元乙(16)、热电偶乙(17)、锅温传感器乙(18)、脉冲点火针乙(19)、燃气阀总成乙(20)组成一种智能控温控时燃气灶；
    燃气阀总成(100)是由燃气入口管(101)、总电磁阀(102)、步进电机(103)、手动旋钮(104)、小火燃气喷管(105)、大火燃气喷管(106)、燃气阀座(115)、阀座出气至小火圆孔(118)、阀座出气至大火圆孔(125)、阀座进气圆孔(120)、燃气阀芯(116)、阀芯进气圆孔(119)、阀芯进气梯形槽孔(121)、阀芯小火进气孔(122)、阀芯出气圆孔(123)、阀芯出气方孔(124)、阀芯中空(117)、燃气阀盖(107)、步进电机齿轮(108)、中间传动齿轮(109)、燃气阀芯齿轮(110)、燃气阀芯连接榫(111)、燃气阀芯凹槽(112)、燃气阀芯压缩弹簧(113)、手动信号开关(114)组成；步进电机(103)位于燃气阀座(115)一侧，步进电机齿轮(108)与中间传动齿轮(109)齿合，中间传动齿轮(109)与燃气阀芯齿轮(110)齿合；总电磁阀(102)平放与燃气阀座(115)相连且相通，并与小火燃气喷管(105)的延长线成58度的夹角；燃气入口管(101)设在总电磁阀(102)上且与总电磁阀(102)相通；在燃气阀座(115)一侧中部开一个阀座进气圆孔(120)，在燃气阀座(115)另一侧中部开一个阀座出气至大火圆孔(125)和靠近阀座底部开一个阀座出气至小火圆孔(118)；在燃气阀芯(116)一侧中部开一个阀芯进气圆孔(119)和阀芯进气梯形槽孔(121)，在燃气阀芯(116)另一侧中部开一个阀芯出气圆孔(123)和阀芯出气方孔(124)；阀芯进气圆孔(119)和阀芯进气梯形槽孔(121)并接连通；阀芯出气圆孔(123)和阀芯出气方孔(124)并接连通；在阀芯出气圆孔(123)和阀芯进气梯形槽孔(121)之间开一个阀芯小火进气孔(122)；步进电机(103)与电子控制单元(7)电连接；总电磁阀(102)与电子控制单元(7)电连接；手动信号开关(114)与电子控制单元(7)电连接；
    电子控制单元(7)由单片机、显示屏、键、步进电机驱动器、电磁阀驱动电路、电热偶电路继电器、点火控制电路组成；
    锅温传感器(9)位于炉头(11)中心，并与电子控制单元(7)电连接；热电偶(8)位于炉头小火环与大火环之间，并与电子控制单元(7)电连接；脉冲点火针(10)位于炉头小火环与大火环之间，并与脉冲发生器(6)电连接；脉冲发生器(6)与电子控制单元(7)电连接；充电器(3)外接220V的电源，并与充电电池(4)电连接；充电器(3)和充电电池(4)由一个联动开关(2)负责开或关；充电电池(4)的正极通过低压电源线(5)与脉冲发生器(6)和电子控制单元(7)及电子控制单元乙(16)电连接；脉冲点火针乙(19)与脉冲发生器(6)电连接；锅温传感器乙(18)与电子控制单元乙(16)电连接；电热偶乙(17)与电子控制单元乙(16)电连接；脉冲发生器(6)与电子控制单元乙(16)电连接；
    在智能烹饪模式时，燃气阀芯连接榫(111)在燃气阀芯压缩弹簧(113)的弹力作用下与燃气阀芯凹槽(112)处于分离状态；电子控制单元(7)根据具体的烹饪程序，开始脉冲点火，打开总电磁阀(102)和燃气阀芯(116)，燃气进入大火燃气喷管(106)和小火燃气喷管(105)；当电热偶(8)产生电流后，脉冲点火针(10)停止工作，燃气灶进入正常工作状态；电子控制单元(7)随时接受锅温传感器(9)传来的锅底温度和所烹饪食物的要求，通过步进电机(103)转动燃气阀芯(116)调节燃气供给量控制火势大小；并根据比例控时控温方法确定各烹饪阶段的烹饪时间；通过步进电机(103)转动燃气阀芯(116)，使阀芯进气圆孔(119)与阀座进气圆孔(120)对准，燃气通过燃气入口管(101)进入总电磁阀(102)，再通过阀座进气圆孔(120)、阀芯进气圆孔(119)、阀芯出气圆孔(123)、阀座出气至大火圆孔(125)进入大火燃气喷管(106)，进行大火烹饪；大火烹饪时间达到后，步进电机(103)再转动燃气阀芯(116)一个角度，使阀芯进气梯形槽孔(121)与阀座进气圆孔(120)对准，燃气通过阀座进气圆孔(120)、阀芯进气梯形槽孔(121)、阀芯出气方形槽孔(124)、阀座出气至大火圆孔(125)进入大火燃气喷管(106)，进行中火烹饪；在中火烹饪期间，根据锅温的需要，左右转动燃气阀芯(116)，将火无级调小或调大；中火烹饪时间达到后，步进电机(103)再转动燃气阀芯(116)一个角度，使阀芯小火进气孔(122)与阀座进气圆孔(120)对准，阀座出气至大火圆孔(125)被堵住，燃气通过阀芯中空(117)和阀座出气至小火孔(118)进入小火燃气喷管(105)，进行小火烹饪；总烹饪时间达到要求后，步进电机(103)反向转动燃气阀芯(116)堵住阀座进气圆孔(120)关闭燃气阀；同时，电子控制单元(7)根据锅温传感器(9)传来的锅底温度判定是否干烧或空烧，当干烧时，关闭总电磁阀(102)和燃气阀芯(116)，并蜂鸣；当燃气火焰意外熄灭使电热 偶(8)断电，总电磁阀(102)关闭；当充电电池(4)断电，总电磁阀(102)关闭；当电子控制单元(7)出现故障，总电磁阀(102)关闭；
    快速短按2次具体烹饪方式键后，进入相应烹饪方式的烹饪总时间调整，接着按+号或-号键进行烹饪总时间调整；再短按该烹饪键确认；
    长按具体烹饪方式键，开始预约时间烹饪；
    长按具体烹饪方式键后，紧接着按+号或-号键，进入相应烹饪方式的预约烹饪时间调整；再次短按该烹饪方式键确认；
    长按油炸键后，紧接着按+号或-号键，进入油炸温度调整；再短按油炸键确认；
    在手动烹饪模式时，通过手动旋钮(104)推动手动信号开关(114)接通，电子控制单元(7)根据手动信号开关(114)接通的信号，让步进电机(103)停止工作；启动脉冲点火针(10)点火；同时，手推动燃气阀芯连接榫(111)***燃气阀芯凹槽(112)转动燃气阀芯(116)打开燃气阀；当热电偶(8)产生电流后，脉冲点火停止，燃气灶进入正常工作状态；通过手动旋钮(104)转动燃气阀芯(116)调节燃气供应量改变火势大小；同时，电子控制单元(7)启动电热偶(8)防意外熄火功能，启动锅温传感器(9)防干烧防空烧功能。
  3. 根据权利要求1所述一种智能控温控时燃气灶，其特征在于：由燃气入口管(101)、总电磁阀(102)、小火燃气喷管(105)、大火燃气喷管(106)、充电器(3)、充电电池(4)、低压电源线(5)、脉冲发生器(6)、电子控制单元(7)、热电偶(8)、锅温传感器(9)、脉冲点火针(10)、大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)、小火供气管路电磁阀(23)、手动燃气阀(24)、炉头(11)、电源开关(2)、火架(12)、燃气灶外壳(13)组成一种智能控温控时燃气灶；
    电子控制单元(7)由单片机、显示屏、键、电磁阀驱动电路、电热偶电路继电器、点火控制电路组成；
    总电磁阀(102)位于燃气入口管(101)之后；大火供气管路电磁阀甲(21)的进气口、大火供气管路电磁阀乙(22)的进气口、小火供气管路电磁阀(23)的进气口分别与总电磁阀(102)连通；大火供气管路电磁阀甲(21)的出气口、大火供气管路电磁阀乙(22)的出气口分别与大火燃气喷管(106)连通；小火供气管路电磁阀(23)的出气口与小火燃气喷管(105)连通；手动燃气阀(24)的进气口与总电磁阀(102)连通，手动燃气阀(24)的出气口分别与大火燃气喷管(106)和小火燃气喷管(105)连通；总电磁阀(102)与电子控制单元(7)电连接；大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)、小火供气管路电磁阀(23)分别与电子控制单元(7)电连接；
    在智能烹饪模式时，手动燃气阀(24)处于关闭状态；电子控制单元(7)根据具体的烹饪程序，开始脉冲点火，打开总电磁阀(102)、大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)和小火供气管路电磁阀(23)，燃气进入大火燃气喷管(106)和小火燃气喷管(105)；当电热偶(8)产生电流后，脉冲点火针(10)停止工作，燃气灶进入正常工作状态；电子控制单元(7)随时接受锅温传感器(9)传来的锅底温度和所烹饪食物的要求，通过关闭或打开大火供气管路电磁阀甲(21)和/或大火供气管路电磁阀乙(22)调节燃气供给量控制火势大小；并根据设定的具体烹饪程序和比例控时控温方法调整烹饪时间，完成烹饪任务；
    在手动烹饪模式时，大火供气管路电磁阀甲(21)、大火供气管路电磁阀乙(22)、小火供气管路电磁阀(23)全部关闭；燃气通过手动燃气阀(24)进入大火燃气喷管(106)和小火燃气喷管(105)；转动手动燃气阀(24)调节燃气供应量改变火势大小。
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CN114046541B (zh) * 2021-11-02 2024-04-05 广东华美骏达电器有限公司 一种集成灶控制***
CN114215932A (zh) * 2021-11-25 2022-03-22 广东思利科智能科技有限公司 一种90度三腔压电式节能阀
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