Electric pot having improved function of continuing temperature-maintenance operation

Patent metadata

Field	Value
Publication number	US-11478104-B2
Application number	US-201916709642-A
Country	US
Kind code	B2
Filing date	Dec 10, 2019
Priority date	Dec 14, 2018
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

An electric pot may include a controller that controls a heater to perform a temperature-maintenance operation based on an input relating to a temperature-maintenance operation and based on information on temperatures. A memory may receive information in relation to a temperature-maintenance operation from the controller and may store the information and retain the stored information in relation to a temperature-maintenance operation regardless of whether a pot main body is attached to or detached from a supporter.

First claim

What is claimed is:

1. An electric pot, comprising:
a supporter that receives electrical power from a power supply;
a pot main body that is detachably coupled to an upper end of the supporter, the pot main body to receive electrical power from the supporter based on a coupling with the supporter, and the pot main body includes:
a heater to heat contents in the pot main body, and
a temperature sensor to sense a temperature of the contents; and

a handle to electrically connect to the pot main body, and the handle includes:
an input device to receive a first input relating to a temperature-maintenance operation and a second input relating to driving of the heater,
a controller configured to:
receive, from the input device, the first input,
receive, from the temperature sensor, information regarding a temperature of the contents,
control the heater to perform the temperature-maintenance operation based on the received first input and the received information regarding the temperature of the contents, and

a memory to receive, from the controller, information regarding the temperature-maintenance operation and to store the received information, and the memory to retain the stored information regarding the temperature-maintenance operation regardless of whether the pot main body is attached to the supporter or the pot main body is detached from the supporter,

wherein the first input includes at least one of an input regarding whether to initiate the temperature-maintenance operation, an input regarding a target setting temperature, and an input regarding an entire temperature-maintenance-continuation periods, and
the information regarding the temperature-maintenance operation includes at least one of information regarding whether the temperature-maintenance operation is set, information regarding the target setting temperature, and information regarding a remaining temperature-maintenance-continuation period of the entire temperature-maintenance-continuation periods, and
wherein when the pot main body is separated from the supporter after the temperature-maintenance operation is initiated, the controller is to stop the temperature-maintenance-operation and counting of the entire temperature-maintenance-continuation periods, and is to update the information regarding the temperature-maintenance operation based on status of the temperature-maintenance operation at a separation time of the pot main body and the supporter, and the controller is to provide, to the memory, the updated information, and
when the pot main body separated from the supporter is re-coupled to the supporter, and the controller receives, from the input device, the second input relating to an initiation of driving of the heater, the controller is to re-initiate driving of the heater, and is to determine whether to re-initiate the temperature-maintenance operation based on the updated information regarding the temperature-maintenance operation at the separation time.

2. The electric pot of claim 1 , wherein the controller is configured to update the information regarding the temperature-maintenance operation in every predetermined cycle until the entire temperature-maintenance-continuation period is completed, and the controller is to provide the updated information to the memory, and
wherein when the pot main body is separated from the supporter, the controller is to update the information regarding the temperature-maintenance operation based on status at the separation time of the pot main body and the supporter regardless of the predetermined cycle, and the controller is to provide the updated information to the memory.

3. The electric pot of claim 1 , wherein when the controller receives, from the input device, the first input relating to the temperature-maintenance operation, the controller is to control the heater to raise the temperature of the contents, and when the temperature of the contents reaches the target setting temperature, the controller is to control the heater to maintain the temperature of the contents at the target setting temperature.

4. The electric pot of claim 3 , wherein the temperature maintenance operation and counting of entire temperature-maintenance-continuation periods is initiated at a time when the temperature of the contents reaches the target setting temperature.

5. The electric pot of claim 1 , wherein when the updated information regarding the temperature-maintenance operation at the separation time indicates that the temperature-maintenance operation is set and there is a remaining temperature-maintenance-continuation period of the entire temperature-maintenance-continuation periods, and when an amount of the contents is not insufficient, the controller is to control the heater to re-initiate the temperature-maintenance operation.

6. The electric pot of claim 1 , wherein when the updated information regarding the temperature-maintenance operation at the separation time indicates that the temperature-maintenance operation is set and there is a remaining temperature-maintenance-continuation period of the entire temperature-maintenance-continuation periods, and when an amount of the contents is insufficient, the temperature-maintenance operation is not re-initiated by the controller.

7. The electric pot of claim 1 , wherein when the updated information regarding the temperature-maintenance operation at the separation time indicates that the temperature-maintenance operation is set and there is no remaining temperature-maintenance-continuation period of the entire temperature-maintenance-continuation period, the temperature-maintenance operation is not re-initiate by the controller.

8. The electric pot of claim 1 , wherein when the updated information relating to the temperature-maintenance operation at the separation time indicates that the temperature-maintenance operation is not set, the temperature-maintenance operation is not re-initiated by the controller.

9. The electric pot of claim 1 , wherein when the temperature-maintenance operation is re-initiated, counting of a remaining temperature-maintenance-continuation period of the entire temperature-maintenance-continuation periods is re-initiated after the temperature of the contents reaches the target setting temperature.

10. The electric pot of claim 1 , wherein when driving of the heater is re-initiated, the controller compares a time for a temperature of the contents to reach the target setting temperature with a predetermined reference time, and
based on a result of the comparison, the controller is to determine whether an amount of the contents is not insufficient, and the controller is to determine whether to re-initiate the temperature-maintenance operation based on the determination.

11. The electric pot of claim 10 , wherein when the time for the temperature of the contents to reach the target setting temperature exceeds the predetermined reference time, the controller is to determine that an amount of the contents is not insufficient, and the controller is to control the heater to re-initiate the temperature-maintenance operation based on a result of the determination, and
wherein when the time for the temperature of the contents to reach the target setting temperature is less than the predetermined reference time, the controller is to determine that an amount of the contents is insufficient, and the temperature-maintenance operation is not re-initiated by the controller.

12. An electric pot, comprising:
a supporter that receives electrical power from a power supply;
a pot main body that is detachably coupled to an upper end of the supporter, the pot main body to receive electrical power from the suppo

Assignees

• Lg Electronics Inc

Inventors

• Kim Namhun
• Jang Ho Yong

Classifications

• A47J27/21083 Primary

  with variable operating parameters, e.g. temperature or boiling period · CPC title

• A47J27/21058 Primary

  Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water (A47J27/21158 takes precedence) · CPC title

• A47J27/21166

  Constructional details or accessories · CPC title

• H05B1/0269

  For heating of fluids · CPC title

• A47J27/212

  with signaling means, e.g. whistling kettles · CPC title