Abrégé

The present application relates to a current feedback circuit and an electric stove. The circuit comprises an electric stove arc striking circuit, a current feedback circuit and a processing module; a booster is connected between an output end of a switching power supply circuit and an input end of an ion needle assembly; the current feedback circuit is coupled to the output end of the switching power supply circuit; the current feedback circuit is configured to acquire a power supply signal of the output end of the switching power supply circuit to obtain a sampling signal; the processing module is respectively connected to the current feedback circuit and a control end of the switching power supply circuit, and the processing module is configured to receive the sampling signal and transmit a power supply adjusting signal to the control end of the switching power supply circuit according to the sampling signal, so that the switching power supply circuit adjusts the power supply amplitude of the power supply signal according to the power supply adjusting signal, thereby adjusting, in real time, the magnitude of the power supply signal output by the switching power supply circuit according to the numerical value of the sampling signal, to realize real-time feedback control according to a current. The overcurrent protection accuracy is improved, and the reliability of electric stove circuits is improved.

Classes IPC  ?

• H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• F24C 7/08 - Disposition ou montage des dispositifs de commande ou de sécurité

Abrégé

An electric stove power detection circuit and an electric stove. The circuit receives a mains supply voltage signal of an electric stove by means of a voltage transformer (100), and outputs a low-voltage sampling signal after performing mutual-induction isolation on the mains supply voltage signal; a current transformer (200) receives a mains supply current signal of the electric stove, and outputs a low-current sampling signal after performing mutual-induction isolation on the mains supply current signal; and a processing module (500) receives and processes the low-voltage sampling signal and the low-current sampling signal to obtain power information, thereby realizing the real-time power detection of the electric stove. Therefore, a power detection circuit is simplified, a power detection cost is reduced, the power detection of an electric stove can be realized, and a power detection data response time can also be shortened.

Classes IPC  ?

• G01R 21/06 - Dispositions pour procéder aux mesures de la puissance ou du facteur de puissance par mesure du courant et de la tension
• F24C 7/06 - Disposition ou montage des éléments de chauffage électrique
• F24C 7/08 - Disposition ou montage des dispositifs de commande ou de sécurité
• H03H 7/06 - Réseaux à deux accès sélecteurs de fréquence comprenant des résistances
• H03M 1/12 - Convertisseurs analogiques/numériques

Abrégé

This application relates to an electricity-triggered flame circuit and an electric flame cooker. An input end of a switching power supply circuit is connected to an external power supply. An n input end of a boost circuit is connected to an output end of the switching power supply circuit. An ion needle assembly comprises an ion needle module which has an input end connected to a first output end of the boost circuit and an output end close to an arc striking ion head. The output end of the ion needle module and the arc striking ion head form an ionization point pair. A power control circuit transmits to the switching power supply circuit a PWM signal corresponding to a preset feature parameter, and the preset feature parameter comprises the frequency or the duty cycle of the PWM signal; the switching power supply circuit outputs a power supply signal to the boost circuit according to the PWM signal; the boost circuit transmits a boost power supply signal to the ion needle assembly according to the power supply signal to control the ionization point pair for ionization and arc striking, so as to produce flames from electricity. A PWM signal corresponding to preset frequency is obtained by changing the preset frequency in the power control circuit, so that the ion needle assembly produces flames with adjustable output power and heat energy. The circuit structure is simplified.

Classes IPC  ?

• H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
• F24C 7/06 - Disposition ou montage des éléments de chauffage électrique
• F24C 7/08 - Disposition ou montage des dispositifs de commande ou de sécurité

Abrégé

The present application relates to an arc striking circuit of an electric flame cooker and an electric flame cooker. An input end of a switching power supply (100) of the circuit is connected to an external power supply; a first input end and a second input end of a booster (200) are separately connected to an output end of the switching power supply (100), and a second output end of the booster (200) is connected to a ground wire; an arc striking mechanism comprises an arc striking ion head provided on an electric flame cooker pot ring (1), and the electric flame cooker pot ring (1) is used for supporting a pot to be used; a plasma generator assembly (300) comprises at least two plasma generators (310); input ends of the plasma generators (310) are separately connected to a first output end of the booster (200), and output ends of the plasma generators (310) are separately arranged close to the arc striking ion head. Therefore, arc striking can be performed by using a lower voltage, thereby reducing the circuit cost, and improving the reliability of the arc striking circuit.

Classes IPC  ?

• H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu
• H02M 1/00 - Détails d'appareils pour transformation
• F24C 7/06 - Disposition ou montage des éléments de chauffage électrique
• H01T 23/00 - Appareils pour la production d'ions destinés à être introduits dans des gaz à l'état libre, p. ex. dans l'atmosphère

Abrégé

An electric fire stove circuit and an electric fire stove. The electric fire stove circuit comprises a switching power supply (100), a booster (200) and at least one group of ion probe point pair assemblies (300), wherein an input end of the switching power supply (100) is used for connecting to an external power supply; a first input end and a second input end of the booster (200) are respectively connected to an output end of the switching power supply (100); each ion probe point pair assembly (300) comprises a first ion probe module (310) and a second ion probe module (320); an input end of the first ion probe module (310) is connected to a first output end of the booster (200); an input end of the second ion probe module (320) is connected to a second output end of the booster (200); an output end of the first ion probe module (310) and an output end of the second ion probe module (320) form an electric ion point pair; and the capacitance value of a capacitor included in the first ion probe module (310) is not equal to the capacitance value of a capacitor included in the second ion probe module (320).

Classes IPC  ?

• H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 1/00 - Détails d'appareils pour transformation
• F24C 7/06 - Disposition ou montage des éléments de chauffage électrique
• H01T 23/00 - Appareils pour la production d'ions destinés à être introduits dans des gaz à l'état libre, p. ex. dans l'atmosphère

Abrégé

The present invention relates to an electric flame cooker, comprising: a housing assembly; a burner assembly, the burner assembly comprising a burner housing and a plasma assembly, the burner housing being disposed on the housing assembly, and the plasma assembly being disposed on the burner housing; a transformer assembly, the transformer assembly being disposed on the housing assembly and/or the burner assembly, the transformer assembly being electrically connected to the plasma assembly, and the transformer assembly being used for supplying power to the plasma assembly; and a control assembly, the control assembly being electrically connected to the transformer assembly. According to the electric flame cooker disclosed by the present application, the control assembly cooperates with the transformer assembly to supply high-voltage power to the burner assembly, such that when the control assembly controls the transformer assembly to operate, the plasma assembly acts on an external pot body or plasma components interact with each other to break down air to generate plasmas, and the external pot body is heated by means of heat generated by the generated plasmas, thereby achieving stable heating.

Classes IPC  ?

• F24C 7/00 - Poêles ou fourneaux chauffés à l’électricité
• F24C 7/06 - Disposition ou montage des éléments de chauffage électrique
• F24C 7/08 - Disposition ou montage des dispositifs de commande ou de sécurité
• F24C 15/00 - Parties constitutives
• H05H 1/24 - Production du plasma
• H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support

Abrégé

A plasma needle, a burner assembly, and an electric flame stove. The plasma needle comprises: a plasma head (1); a support rod (2), wherein the plasma head (1) is connected to one end of the support rod (2), and the other end of the support rod (2) is connected to an electrical connection assembly; and a first protective member (3) sleeved on the outer side of the support rod (2), at least part of the first protective member (3) being made of an insulating material for preventing adjacent plasma needles from arc discharge. The present application has the advantages of arc damage prevention performance and a high safety factor.

Classes IPC  ?

• H05H 1/24 - Production du plasma
• F24C 7/06 - Disposition ou montage des éléments de chauffage électrique
• F24C 7/08 - Disposition ou montage des dispositifs de commande ou de sécurité
• F24C 15/36 - Dispositifs protecteurs, p. ex. pour éviter le contact avec les parties chauffées