Temperature-adjustable energy-saving environment-friendly healthy food heater

Abstract

The utility model belongs to the technical field of kitchen utensils and electric appliances, and particularly relates to a temperature-adjustable energy-saving environment-friendly healthy food heater, which comprises a power supply module, a temperature acquisition unit, a microcontroller, a display, a direct-current heater, an alternating-current heater, a button unit, a first electronic switch and a second electronic switch, the power supply module comprises an alternating-current power supply unit and a direct-current power supply unit, and the alternating-current power supply unit and the direct-current power supply unit are electrically connected to the alternating-current heater and the direct-current heater through a first electronic switch and a second electronic switch respectively. According to the energy-saving, environment-friendly and healthy food heater capable of adjusting the temperature, by arranging the direct-current heater and the alternating-current heater, heating can be conducted through the alternating-current heater when the food heater is used at home, the direct-current heater can be used when the food heater is used on a vehicle outside, using is more flexible, meanwhile, a heating power device is adopted, and compared with a microwave oven, the heating power device is more convenient to use. And meanwhile, compared with microwave heating, power consumption is low, and radiation is small.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliances technology, specifically relating to an energy-saving, environmentally friendly, and healthy food heater with adjustable temperature. Background Technology

[0002] Most food heaters currently on the market use microwave heating. Microwave heating has the following drawbacks: 1. The high temperatures in a microwave oven can damage the nutritional components of food. 2. Microwave ovens are unsuitable for heating unpackaged foods; temperature control is inaccurate, and bubbling or even explosions can occur, causing harm. 3. Precise temperature control is difficult in microwave ovens, affecting the taste of food. 4. Consumers worry about the irreversible damage caused by radiation leaking from microwave ovens. 5. Microwave ovens are not suitable for DC power supply. Drivers of cars and trucks often find it difficult to maintain a healthy diet while driving long distances or traveling outdoors, creating demand for food heaters powered by vehicle power (DC 12V or 24V). 6. Microwave ovens are bulky, inconvenient to carry, consume a lot of energy, and have low space utilization. Utility Model Content

[0003] The present invention aims to provide an energy-saving, environmentally friendly, and healthy food heater with adjustable temperature, so that food can be heated in both AC and DC power supply scenarios, thereby improving the ease of use of the heater.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater is provided, comprising a power supply module, a temperature acquisition unit, a microcontroller, and a heating module;

[0006] The power supply module includes an AC power supply unit and a DC power supply unit.

[0007] The heating module includes a DC heater and an AC heater;

[0008] The AC power supply unit is controlled by a microcontroller to supply power to the AC heater for heating.

[0009] The DC power supply unit is controlled by a microcontroller to supply power to the DC heater for heating.

[0010] Preferably, it also includes a display, a button unit, a first electronic switch, and a second electronic switch;

[0011] The first electronic switch is connected between the AC power supply unit and the AC heater;

[0012] The second electronic switch is electrically connected between the DC power supply unit and the DC heater;

[0013] The first electronic switch and the second electronic switch are respectively electrically connected to the microcontroller;

[0014] The temperature acquisition unit, display, and button unit are electrically connected to the microcontroller.

[0015] Preferably, the AC power supply unit includes a first voltage regulator chip for providing low-voltage DC power, and the DC power supply unit includes a second voltage regulator chip for providing low-voltage DC power, so as to power low-voltage electronic devices including the microcontroller.

[0016] Preferably, the AC power supply unit is an AC110V-240V power supply unit, and the DC power supply unit is a DC12V-24V power supply unit.

[0017] Preferably, the temperature acquisition unit includes a temperature sensor for acquiring the temperature of the DC heater and the AC heater.

[0018] Preferably, the display is a digital tube.

[0019] Preferably, the button unit includes a temperature control device and a push switch, wherein the temperature control device is a temperature adjustment knob.

[0020] Preferably, the button unit is a push-button switch that is movably located in the middle of the temperature adjustment knob.

[0021] Preferably, the first electronic switch is a bidirectional thyristor, and the second electronic switch is a MOSFET.

[0022] Preferably, it also includes a buzzer electrically connected to the microcontroller.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up an AC power supply unit and a DC power supply unit in the power supply module, and correspondingly providing a DC heater and an AC heater, the DC power supply unit and DC heater are used in low-voltage DC power supply scenarios such as vehicle-mounted applications, while the AC power supply unit and AC heater are used in AC power supply scenarios such as homes or offices. In addition, since this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater uses a heating power device, it avoids the texture changes caused by high-temperature heating of food in traditional microwave ovens and the resulting concerns about radiation. Furthermore, this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater consumes less power than microwave heating while ensuring the health of food heating. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a functional framework diagram of the temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater of this utility model;

[0026] Figure 2 This is the circuit schematic diagram of the overall power supply module of this utility model;

[0027] Figure 3 This is an exploded view of the main structure of the food heater in this utility model. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] An energy-saving, environmentally friendly, and healthy food heater with adjustable temperature, such as Figure 1 As shown, this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater includes a power supply module, a temperature acquisition unit, a microcontroller, a display, a DC heater, an AC heater, a button unit, a first electronic switch, and a second electronic switch. The power supply module supplies power to the other electrical components of the food heater. The power supply module includes an AC power supply unit and a DC power supply unit. The DC and AC heaters are heating power devices used to heat food. The AC power supply unit provides AC power and low-voltage DC power. The AC power serves as the power source for the AC heater, while the low-voltage DC power serves as the power source for the microcontroller and other low-voltage components. The DC power supply unit provides higher-voltage DC power and low-voltage DC power. The higher-voltage DC power serves as the power source for the DC heater, while the low-voltage DC power serves as the power source for the microcontroller and other low-voltage components. The microcontroller is also connected to a buzzer. When the temperature sensor detects that the set temperature has been reached, the microcontroller controls the buzzer to sound an alarm.

[0031] The AC power supply unit and the DC power supply unit are electrically connected to the DC heater and the AC heater respectively through the first electronic switch and the second electronic switch. The first electronic switch and the second electronic switch are switches that can be controlled to be turned on and off by the microcontroller, and the power of the heater can be adjusted by controlling the switching frequency. The control terminals of the first electronic switch and the second electronic switch are electrically connected to the microcontroller respectively.

[0032] It should be noted that the microcontroller is a single-chip microcomputer. The temperature acquisition unit, display, and button unit are electrically connected to the microcontroller. The temperature acquisition unit can acquire the heating temperature of the DC heater and AC heater and feed it back to the microcontroller. The microcontroller controls the display to show the heating temperature information of the heater. The button unit sends control signals to the microcontroller. The button unit includes a temperature adjustment device, which sends the set heating temperature signal to the microcontroller. The microcontroller then controls the heating temperature of the heater.

[0033] This temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater allows consumers to conveniently heat food in various usage scenarios. Since the power supply module includes an AC power supply unit and a DC power supply unit, and is equipped with a DC heater and an AC heater respectively, the DC power supply unit and DC heater are used in low-voltage DC power supply scenarios such as vehicles, while the AC power supply unit and AC heater are used in AC power supply scenarios such as homes or offices.

[0034] In addition, because this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater uses heating power devices, it avoids the texture changes caused by the high-temperature heating of food in traditional microwave ovens and the resulting concerns about radiation. Moreover, this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater consumes less power than microwave heating while ensuring the health of the food being heated.

[0035] At the same time, such as Figure 2 As shown, the AC power supply unit of this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater includes a first voltage regulator chip U11 for providing low-voltage DC power. The first voltage regulator chip U11 converts the AC power supplied by the ACL terminal into 5V low-voltage DC power. The first voltage regulator chip U11 is surrounded by electronic components such as filter capacitors, inductors, and resistors to ensure its normal operation. The AC1 terminal of the AC power supply unit is connected to the input terminal of the first electronic switch. The DC power supply unit includes a second voltage regulator chip U12 for providing low-voltage DC power. The second voltage regulator chip U12 is equipped with peripheral circuits consisting of diodes, resistors, etc. The second voltage regulator chip U12 provides 5V low-voltage DC power to low-voltage electronic components, including microcontrollers. The DC24 terminal of the DC power supply unit is used to connect to a DC power supply in scenarios such as vehicle-mounted power supply. The DC1 terminal of the DC power supply unit is used to connect to the input terminal of the second electronic switch.

[0036] Furthermore, this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater features an AC power supply unit of AC110V-240V and a DC power supply unit of DC12V-24V, providing a wide power supply voltage range. This enhances its applicability to various usage scenarios, making it suitable for use in offices, homes, outdoor travel, and in cars and trucks.

[0037] Furthermore, such as Figure 2 As shown, the temperature acquisition unit of this temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater includes a temperature sensor for acquiring the temperature of the DC heater and the AC heater. The temperature sensor is an NTC thermistor, and its working power is provided by a DC power supply unit or a 5V low-voltage DC power output from the DC power supply unit.

[0038] The display is a digital tube, the temperature control device is a temperature adjustment knob, the button unit is a push-button switch located in the middle of the temperature adjustment knob, the first electronic switch is a bidirectional thyristor, and the second electronic switch is a MOSFET.

[0039] Example 2

[0040] This embodiment provides a heating device for carrying the temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater described in Embodiment 1. Please refer to [link / reference needed]. Figure 3 The diagram shows an exploded view of the heating element 3 removed from the main body 1. The heating element 3 is located within the main body 1. A control unit 4 is located on the front of the heating element 3. The control unit 4 is a circuit board that houses the control circuitry for the entire food heater. A display, temperature control device, and button unit are located on the control unit 4. A push-button switch and a temperature adjustment knob are nested together. The push-button switch is used to turn the entire circuit on and off by pressing it. The temperature adjustment knob is used to adjust the temperature by rotating it. A DC heater and an AC heater are located within the heating element 3. The cavity 5 inside the main body 1 is used for storing food during heating. An opening 6 is located at the bottom front of the main body 1, and the control unit 4 is located at the opening 6. A power cord 7 and a connecting wire 8 are located on the rear of the main body 1. The power cord 7 is used for AC power supply, and the connecting wire 8 is used for DC power supply. A lid 2 is located on the top of the main body 1, and shoulder straps 9 are attached to both sides for easy carrying.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature-adjustable, energy-saving, environmentally friendly, and healthy food heater, characterized in that: The power supply module, the temperature acquisition unit, the microcontroller and the heating module are included. The power supply module includes an AC power supply unit and a DC power supply unit. The heating module includes a DC heater and an AC heater. The AC power supply unit is controlled by the microcontroller to supply power to the AC heater for heating. The DC power supply unit is controlled by the microcontroller to supply power to the DC heater for heating.

2. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 1, characterized in that: The display, the button unit, the first electronic switch and the second electronic switch are also included. The first electronic switch is connected between the AC power supply unit and the AC heater. The second electronic switch is electrically connected between the DC power supply unit and the DC heater. The first electronic switch and the second electronic switch are respectively electrically connected to the microcontroller. The temperature acquisition unit, the display and the button unit are respectively electrically connected to the microcontroller.

3. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 2, characterized in that: The AC power supply unit includes a first voltage stabilizing chip for providing low-voltage DC power, and the DC power supply unit includes a second voltage stabilizing chip for providing low-voltage DC power, for supplying power to low-voltage electronic devices including the microcontroller.

4. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 2, characterized in that: The AC power supply unit is an AC 110V-240V power supply unit, and the DC power supply unit is a DC 12V-24V power supply unit.

5. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 2, characterized in that: The temperature acquisition unit includes a temperature sensor for acquiring the temperature of the DC heater and the AC heater.

6. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 2, characterized in that: The display is a digital tube.

7. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 2, characterized in that: The button unit includes a temperature adjusting device and a press switch, and the temperature adjusting device is a temperature adjusting knob.

8. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 2, characterized in that: The first electronic switch is a bidirectional thyristor, and the second electronic switch is a MOS tube.

9. The temperature-controllable, energy-saving, environmentally friendly, and healthy food heater according to claim 2, characterized in that: The buzzer is also electrically connected to the microcontroller.

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