Split-type cooking appliance and control method thereof

Patent metadata

Field	Value
Publication number	US-11684208-B2
Application number	US-202016854871-A
Country	US
Kind code	B2
Filing date	Apr 21, 2020
Priority date	Oct 24, 2017
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

Disclosed are a split-type cooking appliance and a control method therefor. The control method includes acquiring state information of an identification device after a base is powered on; if the state information is a first state, forbidding the base from operating in an induction cooker operation mode and allowing the base to operate in an electric cooker operation mode; if the state information of the identification device is a second state, determining whether a wireless transmission coil circuit detects a feedback signal; if so, forbidding the base from operating in the induction cooker operation mode and allowing the base to operate in the electric cooker operation mode; and if not, allowing the base to operate in the induction cooker operation mode, and forbidding the base from operating in the electric cooker operation mode.

First claim

What is claimed is:

1. A control method, comprising:
at a split-type cooking appliance that has a base provided with an identification device, a coil disk and a wireless transmitting coil circuit therein, wherein an appliance body is adapted to be placed on the base and detachable from the base:
acquiring state information of the identification device after the base is powered on;
in accordance with a determination that the state information of the identification device is a first state, the control method causes an induction cooker control module to prohibit the base from operating in an induction cooker operation mode and allowing the base to operate in an electric cooker operation mode by supplying AC power to the wireless transmitting coil circuit to generate an alternating electromagnetic field;
in accordance with a determination that the state information of the identification device is a second state different from the first state, the control method causes the induction cooker control module to determine whether the wireless transmitting coil circuit detects a feedback signal generated by an electric cooker control module from an induced electromotive force caused by the alternating electromagnetic field;
in accordance with a determination that the wireless transmitting coil circuit detects the feedback signal, the control method causes the induction cooker control module to prohibit the base from operating in the induction cooker operation mode and to allow the base to operate in the electric cooker operation mode by supplying AC power to the wireless transmitting coil circuit to generate the alternating electromagnetic field; and
in accordance with a determination that the wireless transmitting coil circuit does not detect the feedback signal, the control method causes the induction cooker control module to allow the base to operate in the induction cooker operation mode and to prohibit the base from operating in the electric cooker operation mode.

2. The control method according to claim 1 , wherein the identification device comprises a reed switch, wherein the reed switch is on in the first state, and the reed switch is off in the second state.

3. The control method according to claim 1 , wherein after the base is powered on, when the wireless transmitting coil circuit is in an off state and the state information of the identification device is the second state, the coil disk is controlled to output a heating and pot-sensing signal, and it is determined according to the heating and pot-sensing signal whether a pot is present on the base, wherein
if the pot is present on the base, the wireless transmitting coil circuit is controlled to operate to determine whether the wireless transmitting coil circuit detects the feedback signal; and
if no pot is present on the base, the base is allowed to operate in the induction cooker operation mode, and prohibited from operating in the electric cooker operation mode.

4. The control method according to claim 1 , wherein the base further comprises a first wireless communication device, wherein:
when the base is prohibited from operating in the induction cooker operation mode and allowed to operate in the electric cooker operation mode, a wireless power supply connection is established between the wireless transmitting coil circuit and a wireless receiving coil circuit of the appliance body that is placed on the base, a wireless communication connection is established between the first wireless communication device and a second wireless communication device of the appliance body to perform a communication data interaction between the base and the appliance body that is placed on the base, wherein the first wireless communication device and the second wireless communication device comprise infrared communication modules, and the coil disk is controlled to be heated according to the communication data interaction between the base and the appliance body that is placed on the base.

5. The control method according to claim 1 , wherein when the base is allowed to operate in the induction cooker operation mode and prohibited from operating in the electric cooker operation mode, the coil disk is controlled to be heated in the induction cooker operation mode.

6. The control method of claim 1 , wherein the electric cooker control module is provided in an appliance body, and the feedback signal is sent from the electric cooker control module to a wireless receiving coil circuit in the appliance body.

7. The control method of claim 6 , wherein the wireless receiving coil circuit transmits the feedback signal to the wireless transmitting coil circuit.

8. The method of claim 1 , wherein the electric cooker operation mode is used when the appliance body comprises a pressure cooker body or a rice cooker body.

9. A split-type cooking appliance, comprising:
a base provided with an identification device, a coil disk, a wireless transmitting coil circuit and an induction cooker control device therein, and
an appliance body adapted to be placed on the base and detachable from the base,
wherein the induction cooker control device is configured to acquire state information of the identification device after the base is powered on, wherein
in accordance with a determination that the state information of the identification device is a first state, the induction cooker control device is configured to prohibit the base from operating in an induction cooker operation mode and allow the base to operate in an electric cooker operation mode by supplying AC power to the wireless transmitting coil circuit to generate an alternating electromagnetic field;
in accordance with a determination that the state information of the identification device is a second state, the induction cooker control device is configured to determine whether the wireless transmitting coil circuit detects a feedback signal generated by an electric cooker control module from an induced electromotive force caused by the alternating electromagnetic field;
in accordance with a determination that the wireless transmitting coil circuit detects the feedback signal, the induction cooker control device is configured to prohibit the base from operating in the induction cooker operation mode and allow the base to operate in the electric cooker operation mode by supplying AC power to the wireless transmitting coil circuit to generate the alternating electromagnetic field; and
in accordance with a determination that the wireless transmitting coil circuit does not detect the feedback signal, the induction cooker control device is configured to allow the base to operate in the induction cooker operation mode and prohibit the base from operating in the electric cooker operation mode.

10. The split-type cooking appliance according to claim 9 , wherein the identification device comprises a reed switch, wherein the reed switch is on in the first state, and the reed switch is off in the second state.

11. The split-type cooking appliance according to claim 9 , wherein after the base is powered on, when the wireless transmitting coil circuit is in an off state and the state information of the identification device is the second state, the induction cooker control device is configured to control the coil disk to output a heating and pot-sensing signal, and to determine whether a pot is present on the base according to the heating and pot-sensing signal, wherein
if the pot is present on the base, the induction cooker control device is configured to control the wireless transmitting coil circuit to operate to determine whether the wireless transmitting coil circuit detects the feedback signal; and
if no pot is present on the bas

Assignees

• Foshan Shunde Midea Electrical Heating Appliances Mfg Co Ltd

Inventors

• He Yidong

Classifications

• A47J27/004

  with integral electrical heating means (drinking cups with integral heating means A47J36/2466) · CPC title

• A47J27/12

  Multiple-unit cooking vessels · CPC title

• A47J36/32 Primary

  Time-controlled igniting mechanisms or alarm devices · CPC title

• A47J36/2483

  with electrical heating means · CPC title

• A47J27/002 Primary

  Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels · CPC title