# US 9,750,281 B2 · Electronic cigarette charging and discharging circuit, battery assembly and electronic cigarette > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,750,281 B2 - Document ID: US9750281B2 - Status: Granted - Kind: B2 - Application number: 14/119,100 - Filed: 2013-09-30 - Published: 2016-09-29 - Granted: 2017-09-05 - Earliest claimed: 2013-08-30 - Assignees: Huizhou Kimree Technology Co., Ltd. Shenzhen Branch - Applicants: Zhiyong Xiang - Inventors: Zhiyong Xiang - Web page: https://patentgrep.com/patent/US9750281B2 ## CPC - H02J 7/70: characterised by the mechanical construction - A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts - A24F 40/50: Control or monitoring - A24F 40/90: Arrangements or methods specially adapted for charging batteries thereof - H01M 10/05: Accumulators with non-aqueous electrolyte (H01M10/39 takes precedence) - H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) - H02J 7/751: {concerning the insertion or the connection of the batteries} - H05B 3/06: Heater elements structurally combined with coupling elements or holders - Y02E 60/10: Energy storage using batteries - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The present application discloses an electronic cigarette charging and discharging circuit, wherein the electronic cigarette is provided with a charging input interface, such that the battery assembly can be directly inserted into a charger to be charged without removing the atomizing assembly, therefore the operation is more convenient, and wear and loose at the connecting portion caused by frequent disassembling and assembling can also be avoided. The present application further provides an electronic cigarette having the above charging structure and a battery assembly of the electronic cigarette. Besides being convenient for charging, the electronic cigarette may directly use a battery sleeve as an electrode, thus has a simple structure and is easy to manufacture. ## Claims ### Claim 1 An electronic cigarette charging and discharging circuit, comprising an integrated microphone controller, wherein the electronic cigarette charging and discharging circuit further comprises: a charging input interface; a charging management circuit having an input terminal connected to a first terminal of the charging input interface and an output terminal connected to a positive electrode or a negative electrode of a battery; and a charging and discharging two-in-one interface having a first terminal connected to an output terminal of the integrated microphone controller; and each of a second terminal of the charging input interface, a ground terminal of the integrated microphone controller and a second terminal of the charging and discharging two-in-one interface is connected to the negative electrode of the battery; wherein the charging management circuit comprises a charging integrated circuit, a first light emitting diode, a second light emitting diode, a capacitor, a first resistor, a second resistor and a third resistor; an anode of the first light emitting diode and an anode of the second light emitting diode are both connected to a VCC terminal of the charging integrated circuit, and the shared connecting terminal functions as the input terminal of the charging management circuit; a cathode of the first light emitting diode is connected to a CHRG terminal of the charging integrated circuit via the first resistor, a cathode of the second light emitting diode is connected to an LED terminal of the charging integrated circuit via the second resistor, a PROG terminal of the charging integrated circuit is connected to a first terminal of the third resistor, and each of a second terminal of the third resistor, a GND terminal of the charging integrated circuit and a first terminal of the capacitor is grounded; and the charging integrated circuit has a BAT terminal connected to a second terminal of the capacitor and functioning as the output terminal of the charging management circuit. ### Claim 2 (depends on 1) The electronic cigarette charging and discharging circuit according to claim 1, wherein the charging management circuit comprises a diode, and the diode has an anode functioning as the input terminal of the charging management circuit and a cathode functioning as the output terminal of the charging management circuit. ### Claim 3 (depends on 1) The electronic cigarette charging and discharging circuit according to claim 1, wherein the charging input interface is arranged at a lamp cap of an electronic cigarette. ### Claim 4 (depends on 1) An electronic cigarette, comprising a battery assembly and an atomizing assembly, wherein a metallic outer sleeve of the battery assembly is electrically connected to a metallic outer sleeve of the atomizing assembly, and the battery assembly comprises the electronic cigarette charging and discharging circuit according to claim 1. ### Claim 5 (depends on 4) The electronic cigarette according to claim 4, wherein the charging management circuit comprises a diode, and the diode has an anode functioning as the input terminal of the charging management circuit and a cathode functioning as the output terminal of the charging management circuit. ### Claim 6 (depends on 4) The electronic cigarette according to claim 4, wherein the charging input interface is arranged at a lamp cap of an electronic cigarette. ### Claim 7 A battery assembly of an electronic cigarette, comprising an electronic cigarette charging and discharging circuit having an integrated microphone controller, wherein the electronic cigarette charging and discharging circuit further comprises: a charging input interface; a charging management circuit having an input terminal connected to a first terminal of the charging input interface and an output terminal connected to a positive electrode or a negative electrode of a battery; and a charging and discharging two-in-one interface having a first terminal connected to an output terminal of the integrated microphone controller; and each of a second terminal of the charging input interface, a ground terminal of the integrated microphone controller and a second terminal of the charging and discharging two-in-one interface is connected to the negative electrode of the battery; wherein the charging management circuit comprises a charging integrated circuit, a first light emitting diode, a second light emitting diode, a capacitor, a first resistor, a second resistor and a third resistor; an anode of the first light emitting diode and an anode of the second light emitting diode are both connected to a VCC terminal of the charging integrated circuit, and the shared connecting terminal functions as the input terminal of the charging management circuit; a cathode of the first light emitting diode is connected to a CHRG terminal of the charging integrated circuit via the first resistor, a cathode of the second light emitting diode is connected to an LED terminal of the charging integrated circuit via the second resistor, a PROG terminal of the charging integrated circuit is connected to a first terminal of the third resistor, and each of a second terminal of the third resistor, a GND terminal of the charging integrated circuit and a first terminal of the capacitor is grounded; and the charging integrated circuit has a BAT terminal connected to a second terminal of the capacitor and functioning as the output terminal of the charging management circuit. ### Claim 8 (depends on 7) The battery assembly of an electronic cigarette according to claim 7, wherein the charging management circuit comprises a diode, and the diode has an anode functioning as the input terminal of the charging management circuit and a cathode functioning as the output terminal of the charging management circuit. ### Claim 9 (depends on 7) The battery assembly of an electronic cigarette according to claim 7, wherein the charging input interface is arranged at a lamp cap of an electronic cigarette.