WO2024001027A1 - 一键重加热电路和三明治机 - Google Patents

一键重加热电路和三明治机 Download PDF

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WO2024001027A1
WO2024001027A1 PCT/CN2022/135384 CN2022135384W WO2024001027A1 WO 2024001027 A1 WO2024001027 A1 WO 2024001027A1 CN 2022135384 W CN2022135384 W CN 2022135384W WO 2024001027 A1 WO2024001027 A1 WO 2024001027A1
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circuit
reheating
chip
electrically connected
pin
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PCT/CN2022/135384
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English (en)
French (fr)
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张技央
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卓亦胡
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/32—Time-controlled igniting mechanisms or alarm devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/10—Frying pans, e.g. frying pans with integrated lids or basting devices

Definitions

  • the utility model relates to the technical field of circuit timing, and in particular to a one-button reheating circuit.
  • the sandwich machine is a type of breakfast machine, which is a cooking machine that uses a baking pan to heat food; the sandwich machine uses electric heating wires to heat the baking pan to bake or fry food.
  • General sandwich machines have a timing function. When the set time is reached, the power is cut off and the heating stops; however, the conventional mechanical timing function can only time to minutes, not seconds. That is to say, if there are other reasons that cause the food to cool down and you want to heat the hot food, you can only use other machines to reheat it, such as a microwave oven, and use a sandwich machine for secondary heating because the electric heating wire of the sandwich machine has a large power and can only be set to a certain time. Food can easily burn.
  • the purpose of the utility model is to provide a one-button reheating circuit, which adds a one-button reheating circuit based on the conventional mechanical timing circuit, to solve the shortcoming that the conventional mechanical timing function can only be timed to minutes but not accurate to seconds.
  • a one-button reheating circuit including a heating circuit, a timing circuit, and a reheating circuit.
  • the reheating circuit is used to bypass the timing circuit and restart the heating circuit;
  • the heating circuit includes: a delay circuit, a rectifier and filter circuit, and a relay; the rectifier and filter circuit is electrically connected to the delay circuit, the delay circuit is electrically connected to the relay, and the relay is electrically connected to the timing circuit and the heating circuit.
  • the utility model is further configured as follows: the relay includes a common point C, a normally closed point NC, and a normally open point NO; the common point C is electrically connected to the negative electrode of the power supply, the normally closed point NC is electrically connected to the timing circuit, and the normally closed point NC is electrically connected to the timing circuit. Open point NO is electrically connected to the heating circuit.
  • the heating circuit is switched between a mechanical timing circuit and a chip delay circuit through a relay, enabling both long-term heating within 30 minutes and short-term heating within 30 seconds.
  • the utility model is further configured as follows: the rectifier and filter circuit is used to convert the alternating current of the power supply into direct current.
  • the AC power needs to be converted into DC power.
  • the utility model is further configured as follows: the relay further includes a coil, the coil is electrically connected to the delay circuit, the normally open point of the coil attracts and conducts, and the normally closed point of the coil disconnects conducts.
  • the delay circuit controls the coil to achieve switching conduction between the normally open point and the normally closed point.
  • the delay circuit includes a chip, a capacitor C1, a capacitor C3, an adjustable resistor RT, an indicator light J1KEY, a reheating switch J1REHEAT and a three-stage tube.
  • the utility model is further configured as follows: the chip model is EN555, and the transistor model is S8050.
  • the utility model is further configured as follows: the chip 1 pin is connected to the ground, the chip 2 pin is electrically connected to the indicator light J1KEY, the chip 3 pin is electrically connected to the triode base, the chip 4 pin is electrically connected to the positive output of the rectifier filter circuit, the chip 7 pin and the chip 6 The pins are connected in parallel. Pin 8 of the chip is electrically connected to the positive output of the rectifier and filter circuit. Pin 8 of the chip is the chip power pin to provide power for the chip.
  • the delay circuit is composed of EN555 chip.
  • a sandwich includes the one-button reheating circuit described above.
  • the reheating circuit is composed of a delay circuit, which can control the circuit conduction time to about 30 seconds, so that the sandwich machine can be quickly heated within seconds. , reheating food without burning it.
  • Figure 1 is a block diagram of the one-key reheating circuit.
  • Figure 2 is the overall circuit schematic diagram of the one-key reheating circuit.
  • Figure 3 is a circuit diagram of the rectifier and filter circuit.
  • Figure 4 is a circuit diagram of the delay circuit and relay.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be two components Internal connectivity; for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in specific situations; in this article, the heating circuit and timing circuit adopt existing technology, so they are expressed by functional terms. Simple symbols are used in the drawings, and the specific circuit structures of the heating circuit and timing circuit will not be explained in the description.
  • the one-key reheating circuit includes a heating circuit, a timing circuit and a reheating circuit; the reheating circuit includes a rectifier filter circuit, a delay circuit and a relay; when heating for the first time, the power is turned on , the current passes through the heating circuit, timing circuit and relay normally closed point NC in sequence, and then flows back to the power supply through the relay common point C to form a closed circuit, and the heating circuit starts to heat; when the set time is reached, the timer turns off, the circuit is open, and heating stops.
  • the reheating circuit includes a rectifier and filter circuit, a delay circuit and a relay; the rectifier and filter circuit is used to convert alternating current into direct current and provide DC power for the delay circuit and relay; the delay circuit realizes a delay in seconds through the chip and circuit structure. time start and stop; the relay is used to switch the heating circuit between mechanical timing and reheating timing.
  • the relay coil When the reheating function is turned on, the relay coil is energized and the normally open point NO and the common point C are connected. The current passes through the heating circuit, the relay normally open point NO and the common point C in turn. The return power forms a closed circuit and starts heating.
  • the delay When the circuit is activated, the relay coil loses power, the normally open point NO is disconnected, and heating stops.
  • the rectifier and filter circuit includes a rectifier part and a filter part.
  • the filter part includes a first resistor, a second resistor and a filter capacitor C4; the rectifier part adopts bridge filtering.
  • the rectifier and filter circuit in this article is designed to convert AC voltage into 12V DC voltage. In addition, it can also be converted into low-voltage DC voltage in the applicable range such as 24V and 36V.
  • the delay circuit includes the chip, capacitor C1, capacitor C3, adjustable resistor RT, indicator light J1KEY, reheating switch J1REHEAT and three-stage tube;
  • the three-stage tube model is S8050, the chip model is EN555, and the capacitor One end of C1 is electrically connected to the negative output of the rectifier and filter circuit, and the other end of capacitor C1 is electrically connected to one end of adjustable resistor RT; the other end of adjustable resistor RT is electrically connected to the positive output of rectifier and filter circuit;
  • one end of capacitor C3 is electrically connected to the negative output of rectifier and filter circuit, and the other end of capacitor C3
  • One is electrically connected to pin 5 of the chip;
  • pin 6 of the chip is electrically connected to one end of the adjustable resistor RT in parallel with the capacitor C1, pin 1 of the chip is connected to ground, pin 2 of the chip is electrically connected to the indicator light J1KEY, pin 3 of the chip is electrically connected to the base of the triode, and pin 4 of the
  • the neutral line of the power supply is connected to the common point C of the relay, the normally closed point NC is connected to the common point C, the normally closed point NC is connected to the timing circuit, the live wire of the power supply is connected to the heating circuit, the electric heating circuit is connected to the timing circuit, and the current is formed. loop, the machine enters normal working status.
  • the charging speed of capacitor C1 is related to the resistance of the adjustable resistor RT.
  • the resistance of RT is the largest, the charging time is the longest, that is, the reheating time is the longest.
  • the maximum resistance of RT is 500K, which can delay more than 30 seconds.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Baking, Grill, Roasting (AREA)
  • Relay Circuits (AREA)

Abstract

一键重加热电路和包括重加热电路的三明治机。一键重加热电路，包括加热电路、定时电路，重加热电路，重加热电路用于绕开定时电路重新启动加热电路：重加热电路包括：延时电路、整流滤波电路、继电器；整流滤波电路电连接延时电路，延时电路电连接继电器，继电器电连接定时电路和加热电路。具有以下优点和效果：在正常的机械定时基础上增加了重加热电路，重加热电路由延时电路组成，可使电路导通时间控制在30秒左右，使三明治机在30秒钟内快速加热，既重新加热食物又不会烧坏食物。

Description

一键重加热电路和三明治机 技术领域
本实用新型涉及电路定时技术领域，特别涉及一种一键重加热电路。
背景技术
三明治机是早餐机的一种，是使用烤盘来加热食物的烹饪机器；三明治机通过电热丝加热烤盘实现对食物的烘烤或煎制。
一般的三明治机具有定时功能，到达设定时间后，断电停止加热；但是常规的机械定时功能只能定时到分，无法精确到秒。也就是说如果有其他原因导致食物冷卻，想要加热吃热乎乎的食物则只能用其他机器重新加热如微波炉，而用三明治机二次加热因为三明治机电热丝功率较大且只能定时到分容易烤焦食物。
实用新型内容
本实用新型的目的是提供了一种一键重加热电路，再常规的机械定时电路基础上增加一键重加热电路，用于解决常规机械定时功能只能定时到分钟不能精确到秒的缺点。
本实用新型的上述技术目的是通过以下技术方案得以实现的：一键重加热电路，包括加热电路、定时电路，重加热电路，所述重加热电路用于绕开定时电路重新启动加热电路；所述重加热电路包括：延时电路、整流滤波电路、继电器；所述整流滤波电路电连接所述延时电路，所述延时电路电连接 所述继电器，所述继电器电连接定时电路和加热电路。
通过采用上述技术方案，绕开了机械定时器和温控器，使机器重新加热。
本实用新型的进一步设置为：所述继电器包括公共点C、常闭点NC、常开点NO；所述公共点C电连接电源负极，所述常闭点NC电连接定时电路，所述常开点NO电连接加热电路。
通过采用上述技术方案，通过继电器使加热电路在机械定时电路和芯片延时电路之间切换，既能进行30分钟内的长时间加热又能进行30秒内的短时间加热。
本实用新型的进一步设置为：所述整流滤波电路用于把电源的交流电转换成直流电。
不论使延时电路还是继电器都是直流电压，需要把交流电转换成直流电。
本实用新型的进一步设置为：所述继电器还包括线圈，所述线圈电连接延时电路，所述线圈吸合常开点导通，线圈断开常闭点导通。
通过采用上述技术方案，延时电路控制线圈实现常开点和常闭点的之间的切换导通
本实用新型的进一步设置为：所述延时电路包括芯片、电容C1、电容C3、可调电阻RT、指示灯J1KEY，重加热开关J1REHEAT和三级管。
本实用新型的进一步设置为：所述芯片型号为EN555，所述三极管型号为S8050。
本实用新型的进一步设置为：所述芯片1脚接地，芯片2脚电连接指示灯J1KEY，芯片3脚电连接三极管基极，芯片4脚电连接整流滤波电路输出正极，芯片7脚和芯片6脚并联，芯片8脚电连接整流滤波电路输出正极，芯片8脚为芯片电源引脚为芯片提供电源。
通过采用上述技术方案，由EN555芯片组成延时电路。
一种三明治，包括上述所述的一键重加热电路。
本实用新型具有以下有点：在正常的机械定时基础上增加了重加热电路，重加热电路由延时电路组成，可使电路导通时间控制在30秒左右，使三明治机在秒钟内快速加热，既重新加热食物又不会烧坏食物。
附图说明
图1是一键重加热电路结构框图。
图2是一键重加热电路整体电路原理图。
图3是整流滤波电路的电路图。
图4是延时电路和继电器的电路图。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述；显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例，基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置有”、“套设/接”、“连接”等，应做广义理解，例如“连接”，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通；对于本领域的普通技术人员而言，可以具体情况理解上述术语在本实用新型中的具体含义；本文中加热电路和定时电路采用 的是现有技术，所以采用功能性名词表示，附图中采用简单符号表示，在说明书中不会说明加热电路和定时电路具体电路结构。
一键重加热电路，如图1、图2所示，包括加热电路、定时电路和重加热电路；其中重加热电路包括整流滤波电路、延时电路和继电器；第一次加热时，电源接通，电流依次经过加热电路、定时电路和继电器常闭点NC，再经过继电器公共点C回流到电源形成闭路，加热电路开始加热；当到达设定时间时定时器断开，电路断路，停止加热。
重加热电路包括整流滤波电路、延时电路和继电器；整流滤波电路用于将交流电变成直流电，为延时电路和继电器提供直流电源；延时电路通过芯片和电路结构实现以秒为单位的延时启停；继电器用于加热电路在机械定时和重加热定时之间切换。开启重加热功能时，继电器线圈得电吸合常开点NO和公共点C接通，电流依次经过加热电路、继电器常开点NO和公共点C，回流电源形成闭路，开始加热，当延时电路作用时，继电器线圈失电，常开点NO断开，停止加热。
如图3所示，整流滤波电路包括整流部分和滤波部分，滤波部分包括第一电阻、第二电阻和滤波电容C4；整流部分采用桥式滤波。本文中整流滤波电路设计为交流电压转换成12V直流电压，除此外也可以转换成24V、36V等适用范围的低压直流电压。
如图4所示，延时电路包括芯片、电容C1、电容C3、可调电阻RT、指示灯J1KEY，重加热开关J1REHEAT和三级管；其中三级管型号为S8050,芯片型号为EN555，电容C1一端电连接整流滤波电路输出负极，电容C1另一端电连接可调电阻RT一端；可调电阻RT另一端电连接整流滤波电路输出正极；电容C3一端电连接整流滤波电路输出负极，电容C3另一个电连接芯片5脚； 芯片6脚电连接可调电阻RT一端与电容C1并联，芯片1脚接地，芯片2脚电连接指示灯J1KEY，芯片3脚电连接三极管基极，芯片4脚电连接整流滤波电路输出正极；芯片7脚和芯片6脚并联，芯片8脚电连接整流滤波电路输出正极；三极管集电极电连接整流滤波电路输出正极，三极管发射极电连接继电器正极，此处三极管作为开关导通为继电器线圈提供直流电。
本实用新型的基本工作原理为：
1、未使用重加热功能时，电源零线连接继电器公共点C，常闭点NC与公共点C连通，常闭点NC连接定时电路，电源火线连接加热电路，电热电路连接定时电路，电流形成回路，机器进入正常工作状态。
2、使用重加热功能时，按下重加热开关J1REHEAT，指示灯J1KEY得电灯亮，同时芯片2脚接收电平触发使芯片工作，芯片3脚输出电平，三极管基极接收电平，三极管导通，继电器线圈得电，继电器常开点NO吸合，常闭点NC断开，此时常开点NO与公共点C导通，常开点NO连接加热电路，电流此时绕开定时电路，机器直接加热。12V直流电压通过可调电阻RT为电容C1充电，芯片6脚电位升高，当芯片6脚电位上升到与芯片5脚电位相同时，延时电路复位，芯片形成稳态，芯片3脚无电平输出，三极管基极无信号，三极管断开，继电器线圈失电断开，常开点NO断开，停止加热。其中电容C1的充电速度与可调电阻RT阻值有关，当RT阻值最大时，充电时间最长，即重加热时间最长，RT阻值最大为500K，可延时30多秒。
以上所述仅是本实用新型的较佳实施方式，故凡依本实用新型专利申请范围所述的构造、特征及原理所做的等效变化或修饰，均包括于本实用新型专利申请范围内。

Claims (8)

  1. 一键重加热电路，包括加热电路、定时电路，其特征在于：还包括重加热电路，所述重加热电路用于绕开定时电路重新启动加热电路；所述重加热电路包括：延时电路、整流滤波电路、继电器；所述整流滤波电路电连接所述延时电路，所述延时电路电连接所述继电器，所述继电器电连接定时电路和加热电路。
  2. 根据权利要求1所述的一键重加热电路，其特征在于：所述继电器包括公共点C、常闭点NC、常开点NO；所述公共点C电连接电源负极，所述常闭点NC电连接定时电路，所述常开点NO电连接加热电路。
  3. 根据权利要求1所述的一键重加热电路，其特征在于：所述整流滤波电路用于把电源的交流电转换成直流电。
  4. 根据权利要求2所述的一键重加热电路，其特征在于：所述继电器还包括线圈，所述线圈电连接延时电路，所述线圈吸合常开点导通，线圈断开常闭点导通。
  5. 根据权利要求1所述的一键重加热电路，其特征在于：所述延时电路包括芯片、电容C1、电容C3、可调电阻RT、指示灯J1KEY，重加热开关J1REHEAT和三级管。
  6. 根据权利要求5所述的一键重加热电路，其特征在于：所述芯片型号为EN555，所述三极管型号为S8050。
  7. 根据权利要求5所述的一键重加热电路，其特征在于：所述芯片1脚接地，芯片2脚电连接指示灯J1KEY，芯片3脚电连接三极管基极，芯片4脚电连接整流滤波电路输出正极，芯片7脚和芯片6脚并联，芯片8脚电连接 整流滤波电路输出正极，芯片8脚为芯片电源引脚为芯片提供电源。
  8. 一种三明治，其特征在于：包括权利要求1-7中任意一项所述的一键重加热电路。
PCT/CN2022/135384 2022-06-30 2022-11-30 一键重加热电路和三明治机 WO2024001027A1 (zh)

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