Energy-saving circuit of electric cooker
By designing the inspection module and automatic heating module in the rice cooker, the problem of the pot lid was not turned off in time, which caused the rice to lose water overdose in time, and realized a better energy saving effect and the taste of rice.
Patent Information
- Application Number
- CN202421072964.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing rice cooker cannot detect the opening status of the pot lid, which causes the pot lid not to be closed in time after steaming, resulting in excessive loss of water and shriveling of rice, affecting the taste of food.
The energy -saving circuit of the rice cooker is designed, including turning on the detection module, automatic heating module, temperature sensing module, and thermal insulation module. Through the coordinated work of these modules, the opening state of the pot lid in real time, and control the heating and thermal insulation process to avoid unnecessary unnecessary unnecessary Lost calories.
Real -time monitoring and control of the opening state of the lid is realized, the problem of excessive water loss and dryness of the rice is avoided, the taste of the rice cooker is improved, and the energy saving effect of the rice cooker is improved.
Smart Images
Figure CN222398047U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric rice cookers, in particular to an energy-saving circuit for electric rice cookers. Background Art
[0002] Electric rice cooker, also known as electric rice cooker, is a modern cooking appliance that can perform multiple processing such as steaming, boiling, stewing, simmering and braising. It can not only cook food, but also keep it warm. It is clean and hygienic to use, has no pollution, saves time and effort, and is one of the indispensable appliances for modern housework. It is a kitchen appliance that uses electric heat to cook food. Its working temperature is mostly around 100℃, and it can perform multiple cooking operations such as steaming, boiling, stewing, simmering and braising.
[0003] There are still some deficiencies in the electric rice cooker in the prior art. Among them, the electric rice cooker in the prior art cannot detect the opening of the pot lid. During the use of the electric rice cooker, after the cooked rice is placed, most of the time the pot lid is not closed in time. If the dishes are not washed in time after the meal, the user may not be able to find the electric rice cooker in the insulation state in time. When the electric rice cooker continues to keep the rice warm, the continuous low-temperature heating of the rice will cause the rice to be at a higher temperature, thereby accelerating the evaporation rate of the water inside the rice noodles, and then causing the rice to lose water excessively and become shriveled, affecting the taste of the rice. In view of this, we propose an energy-saving circuit for the electric rice cooker. Utility Model Content
[0004] The utility model aims to provide an energy-saving circuit for an electric rice cooker. The energy-saving circuit for an electric rice cooker solves the problem that the electric rice cooker in the prior art cannot detect the opening of a pot cover. During the use of the electric rice cooker, after the cooked rice is placed, the pot cover is mostly not closed in time. If the operation such as washing dishes is not performed in time after the meal, the user may not be able to find the electric rice cooker in a heat preservation state in time. When the electric rice cooker continues to keep the rice warm, the continuous low-temperature heating of the rice will cause the rice to be at a higher temperature, thereby accelerating the evaporation rate of the water inside the rice noodles, and then causing the rice to lose water excessively and become shrunken, thereby affecting the edible taste of the rice.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The energy-saving circuit of the electric rice cooker comprises: a power supply module, an automatic heating module, a temperature sensing module, an opening detection module, and a heat preservation module;
[0007] The power module is used to perform overvoltage protection, rectification, voltage regulation and filtering on the input AC power and output DC power;
[0008] The temperature sensing module is used to monitor and sense the pot temperature inside the rice cooker;
[0009] The automatic heating module is used to heat the pot body inside the rice cooker;
[0010] The heat preservation module is used to control the opening and closing of the exhaust hole of the rice cooker cover;
[0011] The opening detection module is used for detecting the opening and closing of the electric cooker cover, outputting a status signal of the electric cooker cover, and controlling the operation of the automatic heating module through the status signal.
[0012] Preferably, the heat preservation module comprises a solenoid valve, which is connected to the interior of the electric rice cooker and the exhaust hole on the cover of the electric rice cooker, and is used to control the opening and closing of the exhaust hole.
[0013] Preferably, the automatic heating module includes a resistor and a magnet, the resistor is used to convert electrical energy into thermal energy and heat the inner pot of the rice cooker, the magnet is used to monitor the heating temperature and automatically disconnect the resistor circuit when the heating reaches a set value, and the automatic heating module also includes a delay module, which is used for timed heating for steaming operations or timed insulation of the rice cooker.
[0014] Preferably, the temperature sensing module outputs a temperature signal to the outside, which is used for temperature judgment through the temperature comparison module, and is used for outputting a control signal through the temperature comparison module and controlling the operation of the automatic heating module.
[0015] Preferably, the temperature sensing module and the opening detection module are respectively communicated with the automatic heating module via signals.
[0016] Preferably, the opening detection module includes a pressure sensor arranged at the edge of the pot cover, and the opening state of the pot cover can be detected by the pressure value of the pressure sensor and the state signal can be transmitted.
[0017] Preferably, a protection module is also included, and the protection module is used to protect the circuit and automatically disconnect the circuit when an abnormal current or voltage occurs inside the circuit.
[0018] By means of the above technical solution, the utility model provides an energy-saving circuit for an electric rice cooker.
[0019] Beneficial effects:
[0020] (1) The utility model can monitor the opening of the pot lid in real time by means of the opening detection module, and transmit the opening or closing status signal of the pot lid to the automatic heating module, thereby controlling the heating of the rice cooker, and preventing the rice cooker from being continuously heated in an open state, resulting in a large amount of water loss in the rice.
[0021] (2) The utility model can automatically control the closing of the exhaust hole on the pot cover by setting a heat preservation module, so that the exhaust hole can be closed in a low temperature state, thereby improving the heating effect of the heating structure on the pot body in the heat preservation state. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0023] Figure 1 It is a schematic diagram of the structure of the utility model; DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] The energy-saving circuit of the electric rice cooker comprises: a power supply module, an automatic heating module, a temperature sensing module, an opening detection module, and a heat preservation module;
[0026] A power supply module, used for performing overvoltage protection, rectification, voltage regulation and filtering on input AC power and outputting DC power, the power supply module includes a mains power supply, a first varistor, a first fuse, a first capacitor, a first voltage processing device, a first inductor, and a second capacitor; the induction cooker heating module includes a third capacitor and a heating coil; the first end of the mains power supply is connected to one end of the first varistor and connected to one end of the first capacitor and the first input end of the first voltage processing device through the first fuse, the second end of the mains power supply is connected to the other end of the first varistor, the other end of the first capacitor and the second input end of the first voltage processing device, the first output end of the first voltage processing device is connected to one end of the second capacitor, one end of the third capacitor and the first end of the heating coil through the first inductor, the other end of the third capacitor is connected to the second end of the heating coil, and the second output end of the first voltage processing device is connected to the other end of the second capacitor and the ground;
[0027] The temperature sensing module is used to monitor and sense the pot temperature inside the rice cooker. The temperature sensing module monitors the internal temperature of the rice cooker in real time, so that the insulation temperature of the rice cooker can be accurately controlled when the rice cooker is in insulation mode, and the automatic heating module is controlled to be turned on when the internal temperature drops to the minimum threshold, and the heating module is turned off when the internal temperature rises to the maximum threshold;
[0028] An automatic heating module is used to heat the pot body inside the rice cooker;
[0029] The heat preservation module is used to control the opening and closing of the exhaust hole of the rice cooker cover. The heat preservation module can close the exhaust hole when the inside of the rice cooker is kept warm, thereby avoiding excessive loss of water inside the rice during the heat preservation process. At the same time, it keeps the exhaust hole open during the cooking process to facilitate the discharge of high-temperature steam during the cooking process;
[0030] The opening detection module is used for detecting the opening and closing of the rice cooker lid, outputting a status signal of the rice cooker lid, and controlling the operation of the automatic heating module through the status signal. The opening detection module can detect the opening and closing of the lid, and can keep the rice cooker warm at a fixed time through the delay module when the lid is opened. When the keeping warm time is too long, the rice cooker can be automatically closed, thereby preventing the rice cooker from being in a keeping warm state for a long time.
[0031] The heat preservation module comprises a solenoid valve, which is communicated with the inside of the electric rice cooker and the exhaust hole on the cover of the electric rice cooker, and is used for controlling the opening and closing of the exhaust hole.
[0032] The automatic heating module includes a resistor and a magnet. The resistor is used to convert electrical energy into thermal energy and heat the inner pot of the rice cooker. The magnet is used to monitor the heating temperature and automatically disconnect the resistor circuit when the heating reaches a set value. The automatic heating module also includes a delay module, which is used for timed heating for steaming operations or timed insulation of the rice cooker.
[0033] The temperature sensing module outputs a temperature signal to the outside, which is used to make temperature judgment through the temperature comparison module, and is used to output a control signal through the temperature comparison module and control the operation of the automatic heating module.
[0034] The temperature sensing module and the opening detection module are respectively communicated with the automatic heating module through signals.
[0035] The opening detection module includes a pressure sensor arranged at the edge of the pot cover. The opening state of the pot cover can be detected through the pressure value of the pressure sensor and the state signal can be transmitted.
[0036] It also includes a protection module, which is used to protect the circuit and automatically disconnect the circuit when abnormal current or voltage occurs inside the circuit.
[0037] When the energy-saving circuit of the electric rice cooker is in use, first, the heating resistor inside the automatic heating module continuously heats the inside of the electric rice cooker. After the cooking operation is completed, the magnet loses its magnetism under high temperature and disconnects the heating resistor, so that the electric rice cooker is in a heat preservation state. At the same time, the temperature sensing module detects the temperature inside the electric rice cooker. When the pot cover is opened, the internal temperature continues to drop. At the same time, the detection module is opened to transmit a signal to the inside of the automatic heating module, and the delay module runs accordingly. When the pot cover is opened to a set time (reaching 2-4 hours), the heating resistor is completely disconnected, and the electric rice cooker is switched from the heat preservation state to the closed state. When the pot cover is closed for heat preservation, the temperature sensing module monitors the temperature inside the electric rice cooker in real time and transmits a signal to the automatic heating module, so that the inside of the electric rice cooker is kept warm within a set temperature range. At the same time, when the temperature is completed after cooking and drops to the highest threshold of the temperature sensing module, the heat preservation module closes the exhaust hole of the pot cover, thereby improving the heat preservation effect inside the electric rice cooker.
[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. The energy-saving circuit of the rice cooker is characterized by: The energy-saving circuit of the electric rice cooker comprises: a power supply module, an automatic heating module, a temperature sensing module, an opening detection module, and a heat preservation module; The power module is used to perform overvoltage protection, rectification, voltage regulation and filtering on the input AC power and output DC power; The temperature sensing module is used to monitor and sense the pot temperature inside the rice cooker; The automatic heating module is used to heat the pot body inside the electric rice cooker; The heat preservation module is used to control the opening and closing of the exhaust hole of the rice cooker cover; The opening detection module is used for detecting the opening and closing of the rice cooker cover, outputting a status signal of the rice cooker cover, and controlling the operation of the automatic heating module through the status signal.
2. The energy-saving circuit of the electric rice cooker according to claim 1, characterized in that: The heat preservation module comprises a solenoid valve, which is communicated with the inside of the electric rice cooker and the exhaust hole on the cover of the electric rice cooker, and is used for controlling the opening and closing of the exhaust hole.
3. The energy-saving circuit of the electric rice cooker according to claim 1, characterized in that: The automatic heating module includes a resistor and a magnet. The resistor is used to convert electrical energy into thermal energy and heat the inner pot of the electric rice cooker. The magnet is used to monitor the heating temperature and automatically disconnect the resistor circuit when the heating reaches a set value. The automatic heating module also includes a delay module, which is used for timed heating to perform steaming operations or to keep the electric rice cooker warm at a timed rate.
4. The energy-saving circuit for an electric rice cooker according to claim 1, characterized in that: The temperature sensing module outputs a temperature signal to the outside, which is used for temperature judgment through the temperature comparison module, and is used for outputting a control signal through the temperature comparison module and controlling the operation of the automatic heating module.
5. The energy-saving circuit for electric rice cookers according to claim 1, characterized in that: The temperature sensing module and the opening detection module are respectively communicated with the automatic heating module through signals.
6. The energy-saving circuit for an electric rice cooker according to claim 1, characterized in that: The opening detection module includes a pressure sensor arranged at the edge of the pot cover. The opening state of the pot cover can be detected through the pressure value of the pressure sensor and the state signal can be transmitted.
7. The energy-saving circuit for an electric rice cooker according to claim 1, characterized in that: It also includes a protection module, which is used to protect the circuit and can automatically disconnect the circuit when an abnormal current or voltage occurs inside the circuit.