CN203560960U - A Microwave Oven Based on Sensor Control - Google Patents

Abstract

The utility model provides a sensor control based microwave oven, which comprises a microwave oven body, a control system and a control panel, wherein the microwave oven body is composed of a shell, an oven door and a heating cavity; the heating cavity is internally provided with a rotating plate. The microwave oven further comprises a pressure sensor, a thermo-electric sensor, a display and an alarming apparatus. Compared with the existing microwave ovens, the sensor control based microwave oven provided by the utility model is additionally provided with the pressure sensor and the thermo-electric sensor, and the mass change and the temperature change of matters can be respectively detected by the pressure sensor and the thermo-electric sensor, so as to realize intelligent operation of the microwave oven.

Description

A Microwave Oven Based on Sensor Control

technical field

The utility model relates to the field of household appliances, in particular to a sensor-based microwave oven.

Background technique

Microwave ovens are widely used in the market as a commonly used household appliance. It can achieve the purpose of heating food by absorbing microwaves and generating resonance through food.

We know that excessive heating of food or not taking it out of the microwave oven for a long time after heating will lead to deterioration of food and cause cancer. However, the heating power of different microwave ovens currently on the market is not the same. Users cannot confirm whether the heated food has reached the required temperature, nor can they preset the specific heating time well, which greatly increases the risk of food deterioration and carcinogenesis. risks of.

Therefore, there is a need to provide a new microwave oven capable of detecting the heating degree of food and preventing the food from being sealed in the microwave oven for a long time after heating.

Utility model content

The utility model aims to provide a new microwave oven, which can detect the heating degree of food and remind the user whether to continue heating after reaching the preset temperature. Closed in the microwave.

In order to achieve the above object, the utility model provides a sensor-based microwave oven, which includes a microwave oven main body, a control system and a control panel. There is a turntable, and the microwave oven also includes:

A pressure sensor, the pressure sensor is arranged on the turntable and electrically connected with the control system;

A pyroelectric sensor, the pyroelectric sensor is arranged on the upper inner surface of the heating chamber and is electrically connected to the control system;

a display disposed on the front surface of the main body of the microwave oven and electrically connected to the control system; and,

An alarm, the alarm is conductively connected with the control system, and is used to issue an alarm when the microwave oven reaches a preset state.

In an embodiment of the present utility model, the pressure sensor is arranged at the center of the turntable.

In an embodiment of the present utility model, the pyroelectric sensor is arranged directly above the pressure sensor.

In an embodiment of the utility model, the thermoelectric sensor is a comb-shaped thermocouple. The central junction of the thermocouple is a hot junction, the junction of the peripheral part is a cold junction, and the central part is an infrared absorber. When external infrared rays irradiate the thermocouple, the temperature of the infrared absorber rises, and the thermocouple generates thermoelectromotive force, which causes a change in the output signal, and the temperature can be detected.

In an embodiment of the utility model, the pyroelectric sensor is conductively connected with the control system through an amplifying circuit and a regulating circuit.

In a preferred embodiment of the present invention, a sensor-based microwave oven is provided. Like the existing microwave oven, the microwave oven includes a microwave oven main body, a control system and a control panel. The control panel can be an existing knob type The control panel can also be a button-type control panel; the main body of the microwave oven is composed of a casing, an oven door and a heating cavity, and a turntable is arranged in the heating cavity, and the microwave oven also includes:

a pressure sensor, the pressure sensor is arranged on the center of the turntable, and is electrically connected with the control system; thus, the weight of the object placed on the turntable can be detected;

A pyroelectric sensor, the pyroelectric sensor is arranged on the upper inner surface of the heating chamber, directly above the pressure sensor, and electrically connected to the control system; the pyroelectric sensor is a comb-shaped thermocouple, The central junction is a hot junction, the junction of the peripheral part is a cold junction, and the central part is an infrared absorber. When external infrared rays irradiate the thermocouple, the temperature of the infrared absorber rises, and the thermocouple generates a thermoelectromotive force, which causes a change in the output signal, and the temperature can be detected;

a display disposed on the front surface of the main body of the microwave oven and electrically connected to the control system; and,

An alarm, the alarm is conductively connected with the control system, and is used to send an alarm when the microwave oven reaches a preset state; wherein,

The pyroelectric sensor is conductively connected with the control system through an amplification circuit and a regulation circuit.

It should be noted that the sensor-based microwave oven of the present invention adds a pressure sensor and a thermoelectric sensor on the basis of the existing microwave oven, and the rest of the heating or timing settings of the microwave oven remain unchanged.

The sensor-based microwave oven of the utility model adds a pressure sensor and a thermoelectric sensor on the basis of the existing microwave oven, and detects the weight and temperature changes of things respectively through the pressure sensor and the thermoelectric sensor, thereby realizing the intelligent operation of the microwave oven.

Description of drawings

Fig. 1 is a schematic structural view of a sensor-based microwave oven according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the pyroelectric sensor of the microwave oven in Fig. 1;

in:

1—main body of microwave oven; 2—turntable; 3—pressure sensor; 4—pyroelectric sensor, 41—infrared absorber; 5—display.

Detailed ways

The utility model will be described in detail below in conjunction with the examples, and the examples are intended to explain rather than limit the technical solution of the utility model.

In this embodiment, a sensor-based microwave oven is provided. Please refer to FIG. 1 , the microwave oven provided by this embodiment is the same as the existing microwave oven, including a microwave oven main body, a control system (not shown in the figure) and a control panel (not shown in the figure). The control panel can be an existing knob-type control panel, or a button-type control panel; the main body 1 of the microwave oven is composed of a casing, an oven door and a heating chamber, and a turntable is arranged in the heating chamber 2. The microwave oven also includes: a pressure sensor 3, a pyroelectric sensor 4, a display 5 and an alarm (not shown in the figure).

Please continue to refer to FIG. 1 , the pressure sensor 3 is disposed at the center of the turntable 2 and is electrically connected to the control system; thus, the weight of an object placed on the turntable can be detected.

The pyroelectric sensor 4 is arranged on the upper inner surface of the heating chamber, directly above the pressure sensor 3, and electrically connected to the control system. Please refer to Fig. 2, what Fig. 2 shows is the schematic structural diagram of described pyroelectric sensor 4, and described thermoelectric sensor 4 is comb structure thermocouple, and its central junction is hot junction, and the junction of peripheral part is cold junction, and central part is an infrared absorber 41 . When external infrared rays irradiate the thermocouple, the temperature of the infrared absorber rises, and the thermocouple generates thermoelectromotive force, which causes a change in the output signal, and the temperature can be detected.

The display 5 is arranged on the front surface of the main body of the microwave oven, and is conductively connected with the control system.

The alarm is conductively connected with the control system, and is used to issue an alarm when the microwave oven reaches a preset state.

When in use, a preset temperature is set in the control system. During the operation of the microwave oven, the pyroelectric sensor 4 detects the temperature of the heated food at any time. When the temperature reaches the preset temperature, the display 5 Inform the user that the temperature has reached the general requirements, so as to remind the user. If the user does not perform any operation, the control system controls the microwave oven to continue running until the program ends. Such a setting prevents the user from arbitrarily setting the heating time due to uncertainty about the time or temperature required for heating the food, thereby preventing the food from deteriorating due to overheating.

Furthermore, a preset time is also set in the control system, during the operation of the microwave oven, the pressure sensor 3 detects the pressure on the turntable 2 to confirm whether food is placed on the turntable 2 . When the heating program of the microwave oven is over, the alarm will sound an alarm to remind the user that the heating has been completed. When the alarm is sounded, the control system will start counting. When the time reaches the preset time, the The above-mentioned control system controls the oven door of the microwave oven to spring open automatically, so as to prevent the food from being easily carcinogenic due to being sealed in the heating chamber for a long time after heating.

The pressure sensor 3 can also be used to detect whether the heated food explodes. Because the pressure on the turntable will drop sharply after the food explodes, when the detection signal of the pressure sensor 3 drops sharply, the alarm will sound an alarm, and at the same time, the control system will control the door of the microwave oven to pop open automatically.

It should be noted that the sensor-based microwave oven of the present invention adds a pressure sensor and a thermoelectric sensor on the basis of the existing microwave oven, and the rest of the heating or timing settings of the microwave oven remain unchanged.

The sensor-based microwave oven of the present utility model adds a pressure sensor and a thermoelectric sensor on the basis of the existing microwave oven, and adjusts the control system accordingly. Thus realizing the intelligent operation of the microwave oven.

The utility model has been described by the above-mentioned relevant embodiments, but the above-mentioned embodiments are only examples for implementing the utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent arrangements included in the spirit and scope of the claims are included in the scope of the present invention.

Claims (5)

1. The utility model provides a microwave oven based on sensor control, includes microwave oven main part, control system and control panel, the microwave oven main part is formed by casing, furnace gate and heating chamber combination the heating intracavity is equipped with a carousel, its characterized in that, microwave oven still includes:

the pressure sensor is arranged on the turntable and is in conductive connection with the control system;

a thermoelectric sensor disposed on an upper interior surface of said heating chamber and in electrically conductive communication with said control system;

the display is arranged on the front surface of the microwave oven main body and is in conductive connection with the control system; and the number of the first and second groups,

and the alarm is electrically connected with the control system and used for giving an alarm when the microwave oven reaches a preset state.

2. The microwave oven as claimed in claim 1, wherein the pressure sensor is disposed at a center of the turntable.

3. The microwave oven according to claim 1, wherein the thermoelectric sensor is disposed directly above the pressure sensor.

4. The microwave oven as claimed in claim 1, wherein the pyroelectric sensor is a comb-structured thermocouple.

5. The microwave oven according to claim 1, wherein the pyroelectric sensor is electrically connected to the control system through an amplifying circuit and a regulating circuit.

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