KR-102961220-B1 - Power unit of an aerosol generating device

KR102961220B1KR 102961220 B1KR102961220 B1KR 102961220B1KR-102961220-B1

Abstract

An aerosol generating device with enhanced safety is provided. The suction device (100) is equipped with a heater connector (Cn) to which a heater (HTR) is connected to heat a load (500) by consuming power supplied from a power source (BAT), a case (110), and a thermistor (T4) disposed near the case (110) that outputs a value regarding the temperature of the case (110), and performs protection control that prohibits charging of the power source (BAT) and discharge from the power source (BAT) to the heater (HTR) based on the output value of the thermistor (T4).

Inventors

야마다 마나부
아오야마 타츠나리
카와나고 히로시
나카아에 히로키
나가하마 토루
니시무라 유키
후지키 타카시
마스다 유키
요시다 료

Assignees

니뽄 다바코 산교 가부시키가이샤

Dates

Publication Date: 20260507
Application Date: 20220225
Priority Date: 20210510

Claims (14)

As an aerosol generating device, Power and, A heater connector to which a heater is connected that heats an aerosol source by consuming power supplied from the above power source, and A case constituting the surface of the above-mentioned aerosol generating device, and A sensor is provided that outputs a value regarding the temperature of the case, which is positioned in the vicinity of the case. Based on the output value of the above sensor, protection control is executed to prohibit discharge from the above power source to the heater, and The above protection control includes a first protection control that can be terminated and a second protection control that can be terminated, which has more operations performed by the user for termination than the first protection control. If the above output value is a value indicating that the temperature of the case is greater than or equal to a first threshold value, the first protection control is executed, and If the above output value is a value indicating that the temperature of the case is higher than the first threshold value and is greater than or equal to the second threshold value, the second protection control is executed. Aerosol generating device.
In claim 1, The first protection control and the second protection control further prohibit charging of the power supply based on the output value of the sensor, Aerosol generating device.
In claim 2, A controller configured to control the supply of power from the above power source to the heater, and The above controller is, Based on the output value of the above sensor, the temperature of the above case is obtained, and When the temperature of the above case is greater than or equal to a first threshold value, the first protection control is executed, and When the temperature of the above case is below the first threshold value and below the third threshold value, the protection control is configured to be terminated. Aerosol generating device.
In claim 3, The controller is configured to terminate the first protection control when the temperature of the case becomes below the third threshold value while the first protection control is being executed. Aerosol generating device.
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In claim 1, It can operate in multiple modes, and The number of modes in which the second protection control is executable among the plurality of modes is greater than the number of modes in which the first protection control is executable among the plurality of modes. Aerosol generating device.
In claim 6, The system comprises an MCU configured to control the supply of power from the above power source to the heater, and The above first protection control is executed by the MCU, and The above second protection control is executed without going through the MCU, Aerosol generating device.
In claim 6, It can operate in multiple modes, and The above plurality of modes include a charging mode for charging the power source and a heating mode for discharging from the power source to the heater, and The above first protection control is not executed in either or both of the charging mode and the heating mode, Aerosol generating device.
In claim 8, The above first protection control is not executed in both the charging mode and the heating mode, Aerosol generating device.
In claim 8, The above plurality of modes include a sleep mode and a pre-heating mode that needs to be passed through to transition from the sleep mode to the heating mode. The above first protection control is executable in the above pre-heating mode, Aerosol generating device.
In claim 10, The above first protection control is executable only in the above pre-heating mode, Aerosol generating device.
In any one of claims 1 to 4 and claim 6, The above heater, and A chassis having the above power supply, the above heater, and the above sensor, Aerosol generating device.
In claim 12, The heater and the power source are arranged in a first direction, and The sensor is fixed to the chassis so as to be positioned between the heater and the power source in the first direction. Aerosol generating device.
In claim 12, The above chassis includes one or both of a portion located between the power source and the sensor and a portion located between the heater and the sensor. Aerosol generating device.

Description

Power unit of an aerosol generating device The present invention relates to a power unit of an aerosol generating device. Patent Document 1 describes an aerosol generating device comprising a battery and an aerosol generating element, and a device equipped with a portable charger. In this device, the portable charger has a thermistor that detects the temperature of the housing of the aerosol generating device, and when the temperature detected by the thermistor drops below 10°C, it operates a coil around the battery of the aerosol generating device to prevent the temperature of the battery from dropping to 10°C. Patent Document 2 describes a device that uses a comparator to protect against overcurrent or overvoltage. [Fig. 1] This is a perspective view of a non-combustion type suction device. [Fig. 2] This is a perspective view of a non-combustion suction device with a rod mounted. [Fig. 3] Another perspective view of a non-combustion suction device. [Fig. 4] This is an exploded perspective view of a non-combustion suction device. [Fig. 5] This is a perspective view of the internal unit of a non-combustion suction device. [Fig. 6] This is an exploded perspective view of the internal unit of Fig. 5. [Fig. 7] This is a perspective view of the internal unit with the power supply and chassis removed. [Fig. 8] Another perspective view of the internal unit with the power supply and chassis removed. [Fig. 9] This is a schematic diagram illustrating the operating mode of the suction device. [Fig. 10] This is a diagram showing the schematic configuration of the electrical circuit of the internal unit. [Fig. 11] This is a diagram showing the schematic configuration of the electrical circuit of the internal unit. [Fig. 12] This is a diagram showing the schematic configuration of the electrical circuit of the internal unit. [Fig. 13] This is a diagram illustrating the operation of an electrical circuit in sleep mode. [Fig. 14] This is a diagram illustrating the operation of an electrical circuit in active mode. [Fig. 15] This is a diagram illustrating the operation of the electric circuit in the initial heating setting mode. [Fig. 16] This is a diagram illustrating the operation of the electric circuit when heating the heater in the heating mode. [Fig. 17] This is a diagram illustrating the operation of an electric circuit when detecting the temperature of a heater in a heating mode. [Fig. 18] This is a diagram illustrating the operation of an electric circuit in charging mode. [Fig. 19] This is a diagram illustrating the operation of the electrical circuit during the reset (restart) of the MCU. [Fig. 20] This is a schematic diagram illustrating the detection process of suction action by an MCU using a puff thermistor. [Fig. 21] This is a circuit diagram of the key electronic components related to the thermistor selected from the electrical circuit shown in Fig. 10. [Fig. 22] This is a drawing showing the extracted portion of the range (AR) enclosed by the dashed line in Fig. 21. [Fig. 23] This is a diagram summarizing specific examples of protection control patterns implemented in a suction device. [Fig. 24] This is a flowchart to explain an example of the operation of the remaining battery IC and MCU when a high temperature notification signal is output from the remaining battery IC in sleep mode. [Fig. 25] This is a cross-sectional view of the cross-section passing through the case thermistor (T4) of the suction device shown in Fig. 1. [Fig. 26] This is a cross-sectional view of the cross-section passing through the case thermistor (T4) of the suction device shown in Fig. 1. Hereinafter, a suction system, which is an embodiment of an aerosol generating device according to the present invention, will be described with reference to the drawings. This suction system comprises a non-combustion type suction device (100) (hereinafter referred to simply as "suction device (100)"), which is an embodiment of a power unit of the present invention, and a rod (500) heated by the suction device (100). In the following description, a configuration in which the suction device (100) indetachably accommodates a heating unit is described as an example. However, the heating unit may be configured to be detachable from the suction device (100). For example, the rod (500) and the heating unit may be integrated and configured to be detachable from the suction device (100). That is, the power unit of the aerosol generating device may not be configured to include a heating unit as a component. Furthermore, "indetachable" refers to a configuration in which separation cannot be performed only for the intended use. Alternatively, an induction heating coil installed in the suction device (100) and a susceptor embedded in the rod (500) may cooperate to form a heating unit. FIG. 1 is a perspective view showing the overall configuration of the suction device (100). FIG. 2 is a perspective view of the suction device (100) showing the state with th