CN-117530591-B - Temperature detection device for multifunctional cooking integrated machine cooker

CN117530591BCN 117530591 BCN117530591 BCN 117530591BCN-117530591-B

Abstract

The invention relates to a multifunctional cooking all-in-one machine, in particular to a temperature detection device for a cooker of the multifunctional cooking all-in-one machine, which comprises three temperature sensors, namely an in-pot sensor arranged on a pot cover and used for detecting the temperature of gas in the pot, a pot bottom sensor arranged on a pot bottom and used for detecting the temperature of the bottom surface of the pot, and a heating plate sensor arranged on a heating plate, wherein after the cooker is started to work, the temperature in the pot, the temperature of the pot bottom and the temperature of the heating plate detected by the three sensors are collected, the temperature of at least two of the three temperature values are judged according to the change trend of the temperature value with time, and the state information of the pot cover which is judged to be in the state of no pot dry burning, accidental burning or midway opening is sent to a main control center of the cooker, and a stop working instruction is sent to the heating plate by the main control center, so that the cooker can be effectively protected, the cooker can be automatically detected, and the user experience is effectively improved.

Inventors

HE GUANG
HE QING
ZHAO YUHAO
XU ZHANWEI

Assignees

上海爱餐机器人(集团)有限公司

Dates

Publication Date: 20260505
Application Date: 20220801

Claims (7)

1. The temperature detection device for the multifunctional cooking integrated machine cooker is characterized by comprising three temperature sensors, namely an in-pot sensor arranged on a pot cover and used for detecting the temperature of gas in the pot, a pot bottom sensor arranged on a pot bottom of the cooker and used for detecting the temperature of the bottom surface of the pot, and a heating plate sensor arranged on a heating plate and used for detecting the surface temperature of the heating plate, wherein after the cooker is started to work, the temperature in the pot, the temperature of the pot bottom and the temperature of the heating plate detected by the three sensors are collected, the temperature values are judged according to the size of at least two temperature values in the three temperature values and the change trend along with time, and the state information of the determined cooker in no-pot dry burning, accidental burning or midway opening of the pot cover is sent to a main control center of the cooker, and a stop working instruction is sent to the heating plate by the main control center; An aluminum cover capable of elastically moving up and down is arranged in a central through hole of the heating disc, a gap is reserved between the aluminum cover and the inner wall of the central through hole, an outer spring is arranged in the aluminum cover, the top end of the outer spring is abutted against the inner wall of the aluminum cover, a probe of the pan bottom sensor is arranged below the aluminum cover, and when the pan body is placed in a cooker, the aluminum cover compresses the outer spring to move downwards, and the top surface of the probe is directly contacted with the aluminum cover.
2. The temperature detecting device for a multifunctional cooking-integrated machine cooker according to claim 1, wherein no-pot dry combustion in the cooker is determined to be in an empty state when the temperature in the pot is always greater than the bottom temperature over time after a short period of time when the heating plate is turned on.
3. The temperature detecting device for a multifunctional cooking integrated machine cooker according to claim 1, wherein after a short period of time during which said heating plate is turned on, when the temperature change amount per unit time of the bottom temperature and the heating plate temperature tends to be the same and the temperature in the pan is less than the bottom temperature, it is determined that there is dry cooking.
4. The temperature detecting device for use in a cooker of a multifunctional cooking-integrated machine according to claim 1, wherein during normal operation of the heat-generating plate, when the temperature in the pot suddenly decreases from a constant range value for 10 seconds to 30 seconds and the temperature of the bottom of the pot and the temperature of the heat-generating plate still rise, it is determined that the pot cover is accidentally burned or opened halfway.
5. The temperature detecting device for use in a cooker of a multifunctional cooking-integrated machine according to claim 1, wherein the pot cover is determined to be opened halfway when the temperature in the pot is suddenly changed from an ascending state to a descending state during normal operation of the heating plate.
6. The temperature detecting device for a cooker of a multifunctional cooking all-in-one machine according to any one of claims 1 to 5, wherein when the bottom temperature of the pot reaches the operating temperature set by the cooking program, the main control center of the cooker switches the operating mode of the heating plate to the intermittent operating mode.
7. The temperature sensing device for use in a multi-functional cooking all-in-one cooker of claim 6, wherein said in-pot sensor, said bottom-of-pot sensor, and said hotplate sensor are all thermistors.

Description

Temperature detection device for multifunctional cooking integrated machine cooker Technical Field The invention relates to a multifunctional cooking integrated machine, in particular to a temperature detection device for a cooker of the multifunctional cooking integrated machine. Background The cooking all-in-one machine is favored by a plurality of consumers due to strong functions and high intelligent degree, but at present, when a pot in the cooking all-in-one machine is in an unexpected working state (such as no pot dry burning (a pot body is not put into the pot during cooking), no pot dry burning (a pot body is put into the pot during cooking), unexpected dry burning (the pot body is burnt out due to the out-of-control of a main control center in the cooking process) or a pot cover is opened halfway (the pot cover is opened unexpectedly during the cooking), the cooking all-in-one machine is generally damaged due to the fact that a circuit for cutting off the work of a heating disc is not arranged, and even if a device for cutting off the work of the heating disc is arranged, the cooking all-in-one machine is also high in production cost due to the fact that the structure is complex, the parts and the corresponding arranged sensors are more. Disclosure of Invention The invention aims to solve the technical problem of providing a temperature detection device which comprises a plurality of temperature sensors and is used for effectively preventing a pot from being dry-burned without a pot, being dry-burned with a pot, accidentally burning dry or opening a pot cover halfway in the cooking process of the pot. In order to solve the technical problems, the technical scheme of the invention is as follows: The utility model provides a temperature detection device for among multi-functional culinary art all-in-one pot utensil, a serial communication port, including three temperature sensor, be the pot sensor that sets up on the pot cover and detect the gas temperature in the pot, the pot sensor that sets up and be used for detecting the dish surface temperature that generates heat on the dish that generates heat at the pot bottom detection pot bottom surface temperature and set up, after starting the pot utensil work, through gathering the pot temperature that three sensors detected, pot bottom temperature and heating dish temperature, judge according to the size of at least two temperature values and the trend of change over time in three temperature values, the pot utensil that will judge is in no pot dry-heat, has the pot dry-heat, unexpected dry-heat or opens the state information of pot cover midway to the master control center of pot utensil, send stop work instruction to the dish that generates heat by this master control center. Further, after a short period of time of the heating plate opening work, when the temperature change in the pot is always larger than the temperature of the bottom of the pot along with time, the pot is determined to be in an empty state and no pot dry burning exists in the pot. Further, after a short period of time of the heating plate opening operation, when the temperature change amount of the pot bottom temperature and the heating plate temperature in unit time tend to be the same and the temperature in the pot is smaller than the pot bottom temperature, the pot is determined to be dry-burned. Further, during the normal operation of the heating plate, when the temperature in the pot suddenly drops from a constant range value for 10 seconds to 30 seconds and the temperature of the bottom of the pot and the temperature of the heating plate are still rising, the pot cover is considered to be accidentally burned or opened halfway. Further, in the normal working process of the heating plate, when the temperature in the pot is suddenly changed from the rising state to the lowering state, the pot cover is determined to be opened halfway. Further, when the temperature of the bottom of the pot reaches the working temperature set by the cooking program, the main control center of the cooker enables the working mode of the heating plate to be switched into an intermittent working mode. Further, the sensor in the pot, the sensor at the bottom of the pot and the sensor of the heating plate are all thermistors. Further, the center of the heating plate is provided with a central through hole, an aluminum cover capable of elastically moving up and down is arranged in the central through hole, a gap is reserved between the aluminum cover and the inner wall of the central through hole, the pan bottom sensor is arranged in the aluminum cover, and when the pan body is placed in the cooker, the aluminum cover moves downwards to enable the bottom surface of the pan body to be in contact with the upper surface of the heating plate, and meanwhile the pan bottom sensor is abutted to the lower surface of the aluminum cover. Compared with the prior art, the temperature detection device can realize re