Short circuit protection structure of atomization device and atomization device

Abstract

The present application relates to a kind of short-circuit protection structure of atomization device and atomization device, and the short-circuit protection structure of atomization device includes cartridge, MCU control module, battery module, unidirectional conducting device and energy storage module, the input end of unidirectional conducting device is electrically connected with the output end of battery module, the output end of unidirectional conducting device and the output end of energy storage module are electrically connected with the power supply port of MCU control module;When cartridge is in the state of suction, and atomization device is in normal working condition, battery module is unidirectional power supply to MCU control module by unidirectional conducting device, and energy storage module is in full power state;When cartridge is in the state of suction, and atomization device is in abnormal short-circuit state, battery module stops the power supply to MCU control module, and energy storage device supplies power to MCU control module, so that MCU control module carries out state identification and cuts off the heating of cartridge.The short-circuit protection structure of the atomization device reaches the purpose of short-circuit protection by additionally adding unidirectional conducting device and energy storage module.

Description

Technical Field

[0001] This invention relates to the field of electronic cigarette technology, and in particular to a short-circuit protection structure for an atomizing device and the atomizing device itself. Background Technology

[0002] Electronic atomizers, also known as e-cigarettes, are products powered by lithium polymer batteries. They heat e-liquid in a cartridge, turning nicotine and other substances into vapor for the user to inhale. Currently, major brands of atomizers strive for constant power output to heat the cartridge while maintaining a good flavor experience. However, due to the complexities of user scenarios, dust / sweat, and damaged casings, electrical short circuits in the cartridge or heating coil are sometimes unavoidable. Furthermore, e-liquid leakage is a problem, and prolonged leakage can lead to short circuits. Once a short circuit occurs, the battery depletes rapidly, generating excessive heat, damaging the battery cell, and potentially causing a safety hazard.

[0003] Currently, many electronic cigarette MCU control modules (MCUs) on the market are directly powered by batteries, and these MCU control modules cannot implement LVD (low voltage detection), or even if reset, there are no relevant registers to read the status and determine the cause of the reset. Short circuit protection is heavily limited by the chip itself. Summary of the Invention

[0004] Based on this, the present invention provides a short-circuit protection structure for an atomizing device and an atomizing device, which achieves the purpose of short-circuit protection by electrically connecting a unidirectional conducting device between the MCU control module and the battery module and by additionally adding an energy storage module.

[0005] A short-circuit protection structure for an atomizing device includes a cartridge, an MCU control module, a battery module, a unidirectional conduction device, and an energy storage module. The input terminal of the unidirectional conduction device is electrically connected to the output terminal of the battery module, and the output terminals of the unidirectional conduction device and the energy storage module are electrically connected to the power supply port of the MCU control module.

[0006] When the cartridge is inhaled and the atomizing device is in normal working condition, the battery module supplies power to the MCU control module in one direction through the unidirectional conduction device, and the energy storage module is fully charged.

[0007] When the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the battery module stops supplying power to the MCU control module, and the energy storage device supplies power to the MCU control module, enabling the MCU control module to identify the status and cut off the heating of the cartridge.

[0008] In one embodiment, when the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the one-way conduction device can prevent the electrical energy of the energy storage module from flowing back to the battery module.

[0009] In one embodiment, the unidirectional conducting device is a diode.

[0010] In one embodiment, the short-circuit protection structure of the atomizing device further includes a logic switch, a first voltage divider module, and a second voltage divider module. The power supply port of the MCU control module, the first voltage divider module, and the second voltage divider module are electrically connected to the logic switch, the output terminal of the battery module is electrically connected to the first voltage divider module, the second voltage divider module is grounded, and the IO port of the MCU control module is electrically connected to the second voltage divider module.

[0011] When the cartridge is inhaled and the atomizing device is in normal working condition, the logic switch is turned off, and the IO port of the MCU control module is grounded through the second voltage divider module;

[0012] When the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the logic switch is turned on, and the power supply port of the MCU control module is grounded through the first voltage divider module and the second voltage divider module, so that the voltage of the IO port of the MCU control module is higher than the voltage of the power supply port of the MCU control module, triggering the MCU control module to cut off the heating of the cartridge.

[0013] In one embodiment, when the cartridge is inhaled and the atomizing device is in normal working condition, the voltage of the battery module is higher than the voltage of the power supply port of the MCU control module.

[0014] In one embodiment, the first voltage divider module includes a first resistor;

[0015] The second voltage divider module includes a second resistor.

[0016] In one embodiment, the resistance value of the second resistor is ten times the resistance value of the first resistor.

[0017] In one embodiment, when the logic switch is turned on, the second resistor is connected in series with the first resistor to divide the voltage at the power supply port of the MCU control module, so that the voltage at the IO port of the MCU control module is higher than the voltage at the power supply port of the MCU control module.

[0018] In one embodiment, the logic switch is a MOS transistor.

[0019] The short-circuit protection structure of the aforementioned atomizing device includes a unidirectional conductive device electrically connected between the MCU control module and the battery module, and an additional energy storage module that supplies power to the MCU control module in the event of an abnormal short circuit in the atomizing device. Under normal operating conditions, the battery module's power is supplied unidirectionally to the MCU control module via the unidirectional conductive device, while the energy storage module remains fully charged as a backup power source. When the atomizing device experiences an abnormal short circuit, the battery module's power rapidly decreases, ceasing power supply to the MCU control module. The energy storage device can then briefly supply power to the MCU control module, allowing the MCU control module to identify the status and cut off the heating of the cartridge, thus achieving short-circuit protection.

[0020] The present invention also provides an atomizing device, which includes the short-circuit protection structure of the atomizing device described above. Short-circuit protection is achieved by electrically connecting a unidirectional conducting device between the MCU control module and the battery module, and by additionally adding an energy storage module. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the unidirectional conduction of the short-circuit protection structure of the atomizing device of the present invention;

[0022] Figure 2 This is a schematic diagram of the voltage divider protection of the short-circuit protection structure of the atomizing device of the present invention.

[0023] The meanings of the labels in the attached diagram are as follows:

[0024] 1-Battery module; 2-One-way conduction device; 3-Energy storage module; 4-MCU power supply port; 5-Logic switch; 6-First resistor; 7-Second resistor; 8-MCU I / O port. Detailed Implementation

[0025] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] like Figure 1 As shown, the short-circuit protection structure of the atomizing device includes a cartridge, an MCU control module, a battery module 1, a one-way conduction device 2, and an energy storage module 3. The input terminal of the one-way conduction device 2 is electrically connected to the output terminal of the battery module 1, and the output terminals of the one-way conduction device 2 and the energy storage module 3 are electrically connected to the power supply port of the MCU control module (see MCU power supply port 4 in the figure).

[0029] When the cartridge is inhaled and the atomizing device is in normal working condition, the battery module 1 supplies power to the MCU control module in one direction through the unidirectional conduction device 2, and the energy storage module 3 is fully charged.

[0030] When the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the battery module 1 stops supplying power to the MCU control module, and the energy storage device supplies power to the MCU control module, enabling the MCU control module to identify the status and cut off the heating of the cartridge.

[0031] The short-circuit protection structure of this atomizing device includes a unidirectional conductive device 2 electrically connected between the MCU control module and the battery module 1, and an additional energy storage module 3 that supplies power to the MCU control module in the event of an abnormal short circuit in the atomizing device. Under normal operating conditions, the battery module 1's power is supplied unidirectionally to the MCU control module only by the unidirectional conductive device 2, while the energy storage module 3 remains fully charged as a backup power source. When the atomizing device experiences an abnormal short circuit, the battery module 1's power rapidly decreases, stopping power supply to the MCU control module. The energy storage device can then briefly supply power to the MCU control module, allowing the MCU control module to identify the status and cut off the heating of the cartridge, thus achieving short-circuit protection.

[0032] In this embodiment of the invention, the state recognition refers to the MCU control module recognizing the current state of the atomizing device and confirming whether the current atomizing device is in an abnormal short circuit state.

[0033] In one embodiment, such as Figure 1As shown, when the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the one-way conduction device 2 can prevent the power of the energy storage module 3 from flowing back to the battery module 1, thereby ensuring that the energy storage module 3 can only supply power to the MCU control module.

[0034] In one embodiment, when the cartridge is in the inhalation state and the atomizing device is in normal working state, the voltage of the power supply port of the MCU control module is approximately the voltage of the battery module 1, or the voltage of the power supply port of the MCU control module is a few tenths of a volt lower than the voltage of the battery module 1, depending on the type of conducting device.

[0035] Furthermore, while the battery module 1 supplies power to the MCU control module in one direction, it can also choose to supply power to the energy storage module 3 synchronously, so that the energy storage module 3 can always be fully charged during normal operation, and also allow the energy storage module 3 to be used in multiple abnormal short-circuit states.

[0036] In practical applications, whether the battery module 1 simultaneously supplies power to the energy storage module 3 while supplying power to the MCU control module can be selected according to actual needs and is not restricted here. Furthermore, the method by which the energy storage module 3 replenishes its power after a brief power supply to the MCU control module is also not restricted here.

[0037] In one embodiment, the unidirectional conducting device 2 can be a diode. It is understood that the anode of the diode is electrically connected to the anode of the battery module 1, and the cathode of the diode is connected to the power supply port of the MCU control module, to ensure that the battery module 1 can provide unidirectional power to the MCU control module, while preventing energy (such as energy from the energy storage module 3) from flowing back to the battery module 1 from the cathode side of the diode. In other embodiments not shown in the figure, the unidirectional conducting device 2 can also be other components with the same function.

[0038] In one embodiment, the energy storage module 3 may be an energy storage device with a large capacitor to ensure that the MCU control module completes the entire process of status identification and cutting off the heating of the tobacco cartridge, and prevents the status identification and cutting off of the heating of the tobacco cartridge from being terminated due to insufficient power in the middle, thereby ensuring the complete realization of short circuit protection.

[0039] In one embodiment, such as Figure 2As shown, the short-circuit protection structure of the atomizing device also includes a logic switch 5, a first voltage divider module, and a second voltage divider module. The power supply port of the MCU control module, the first voltage divider module, and the second voltage divider module are electrically connected to the logic switch 5, respectively. The output terminal of the battery module 1 is electrically connected to the first voltage divider module, the second voltage divider module is grounded, and the IO port of the MCU control module (see MCU IO port 8 in the figure) is electrically connected to the second voltage divider module.

[0040] When the cartridge is in the inhalation state and the atomizing device is in normal working state, the logic switch 5 is closed, and the IO port of the MCU control module is grounded through the second voltage divider module.

[0041] When the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the logic switch 5 is turned on, and the power supply port of the MCU control module is grounded through the first voltage divider module and the second voltage divider module, so that the voltage of the IO port of the MCU control module is higher than the voltage of the power supply port of the MCU control module, triggering the MCU control module to cut off the heating of the cartridge.

[0042] The short-circuit protection structure of the atomizing device grounds the power supply port of the MCU control module through the first voltage divider module, the logic switch 5, and the second voltage divider module. When the cartridge is in the inhalation state and the atomizing device is in normal operation, the IO port of the MCU control module is grounded through the second voltage divider module, and the IO port of the MCU control module is at a low level. When the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the power supply port of the MCU control module is grounded through the first and second voltage divider modules, the IO port of the MCU control module is at a high level, and a level transition is detected, triggering an interrupt in the MCU control module, immediately stopping the PWM operation, cutting off the heating path from the battery module 1 to the heating coil of the cartridge, protecting the battery, and preventing further consumption.

[0043] It should be noted that, Figure 1 The method of short-circuit protection shown can be compared with... Figure 2 The short-circuit protection method shown can coexist in the same atomizing device through voltage division. Although the two are not combined in the figure, in actual production and manufacturing, they can coexist in the same atomizing device through parallel connection.

[0044] In one embodiment, such as Figure 2As shown, due to the presence of the second voltage divider module, when the cartridge is in the inhalation state and the atomizing device is in normal working state, the voltage of the battery module 1 will be higher than the voltage of the power supply port of the MCU control module to ensure normal power supply and guarantee the continuous heating of the e-liquid by the cartridge.

[0045] In one embodiment, such as Figure 2 As shown, in order to realize the voltage division function of the first voltage divider module and the second voltage divider module, the first voltage divider module includes a first resistor 6; the second voltage divider module includes a second resistor 7, so as to perform voltage division and reduction by means of resistor voltage division.

[0046] It should be noted that in this embodiment of the invention, the first voltage divider module uses a method of connecting a single first resistor 6 between the power supply port of the MCU control module and the logic switch 5, and the second voltage divider module uses a method of electrically connecting a single second resistor 7 to the logic switch 5. However, in other embodiments not shown in the figure, the first voltage divider module may also use multiple first resistors connected in series or parallel to achieve voltage division and reduction at the power supply port of the MCU control module. The second voltage divider module may also be formed by multiple second resistors 7 connected in series or parallel, as long as it ensures that the second voltage divider module can perform voltage division and reduction at both the power supply port and the I / O port of the MCU control module.

[0047] In addition, in other embodiments not shown in the figure, the first voltage divider module and the second voltage divider module may be selected from other components besides resistors, as long as they can effectively perform voltage division and reduction.

[0048] In one embodiment, the resistance of the second resistor 7 is ten times the resistance of the first resistor 6. This is to ensure that the voltage at the power supply port of the MCU control module, after being divided by the first resistor 6 and the second resistor 7, is less than the voltage at the I / O port of the MCU control module, triggering an interrupt in the MCU control module. This immediately cuts off the heating path from the battery module 1 to the heating wire of the cartridge, protecting the battery and preventing further consumption.

[0049] In one embodiment, such as Figure 2 As shown, when the logic switch 5 is turned on, the second resistor 7 is connected in series with the first resistor 6 to divide the voltage at the power supply port of the MCU control module, so that the voltage at the IO port of the MCU control module is higher than the voltage at the power supply port of the MCU control module, thereby triggering the MCU control module to interrupt and cut off the continued heating of the tobacco cartridge.

[0050] In one embodiment, such as Figure 2As shown, the logic switch 5 is preferably a MOSFET. In other embodiments not shown, the logic switch 5 may also be selected from other components that can achieve the same function, and there are no restrictions on this.

[0051] This invention also provides an atomizing device, which includes the short-circuit protection structure of the atomizing device provided in the above embodiments. A unidirectional conducting device 2 is electrically connected between the MCU control module and the battery module 1, and an additional energy storage module 3 is added to supply power to the MCU control module when the atomizing device experiences an abnormal short circuit, thus achieving short-circuit protection. Under normal operating conditions, the battery module 1's power is supplied unidirectionally to the MCU control module only by the unidirectional conducting device 2, while the energy storage module 3 remains fully charged as a backup power source. When the atomizing device experiences an abnormal short circuit, the battery module 1's power rapidly decreases, stopping power supply to the MCU control module. The energy storage device can then briefly supply power to the MCU control module, allowing the MCU control module to identify the status and cut off the heating of the cartridge, thus achieving short-circuit protection.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments merely illustrate preferred implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A short circuit protection structure of an atomizing device, characterized by: It includes a cigarette cartridge, an MCU control module, a battery module, a unidirectional conduction device, and an energy storage module. The input terminal of the unidirectional conduction device is electrically connected to the output terminal of the battery module, and the output terminals of the unidirectional conduction device and the energy storage module are electrically connected to the power supply port of the MCU control module. When the cartridge is inhaled and the atomizing device is in normal working condition, the battery module supplies power to the MCU control module in one direction through the unidirectional conduction device, and the energy storage module is fully charged. When the cartridge is in the inhalation state and the atomizing device is in an abnormal short circuit state, the battery module stops supplying power to the MCU control module, and the energy storage module supplies power to the MCU control module, enabling the MCU control module to perform state recognition and cut off the heating of the cartridge; The short-circuit protection structure of the atomizing device also includes a logic switch, a first voltage divider module, and a second voltage divider module. The power supply port of the MCU control module, the first voltage divider module, and the second voltage divider module are electrically connected to the logic switch, the output terminal of the battery module is electrically connected to the first voltage divider module, the second voltage divider module is grounded, and the IO port of the MCU control module is electrically connected to the second voltage divider module. When the cartridge is inhaled and the atomizing device is in normal working condition, the logic switch is turned off, and the IO port of the MCU control module is grounded through the second voltage divider module; When the cartridge is in the inhalation state and the atomizing device is in an abnormal short-circuit state, the logic switch is turned on, and the power supply port of the MCU control module is grounded through the first voltage divider module and the second voltage divider module, so that the voltage of the IO port of the MCU control module is higher than the voltage of the power supply port of the MCU control module, triggering the MCU control module to cut off the heating of the cartridge. 2.The short circuit protection structure of an atomization device according to claim 1, characterized in that: When the cartridge is inhaled and the atomizing device is in an abnormal short-circuit state, the one-way conduction device can prevent the electrical energy of the energy storage module from flowing back to the battery module. 3.The short circuit protection structure of an atomization device according to claim 1, wherein: The unidirectional conducting device is a diode. 4.The short circuit protection structure of an atomization device according to claim 1, wherein: When the cartridge is inhaled and the atomizing device is in normal working condition, the voltage of the battery module is higher than the voltage of the power supply port of the MCU control module. 5.The short circuit protection structure of an atomization device according to claim 1, wherein: The first voltage divider module includes a first resistor; The second voltage divider module includes a second resistor. 6.The short circuit protection structure of an atomization device according to claim 5, wherein: The resistance of the second resistor is ten times the resistance of the first resistor. 7.The short circuit protection structure of an atomization device according to claim 5, wherein: When the logic switch is turned on, the second resistor is connected in series with the first resistor to divide the voltage at the power supply port of the MCU control module, so that the voltage at the IO port of the MCU control module is higher than the voltage at the power supply port of the MCU control module. 8.The short circuit protection structure of an atomization device according to claim 1, wherein: The logic switch is a MOSFET.

9. An atomising device characterised in that, Includes a short-circuit protection structure for the atomizing device as described in any one of claims 1-8.

Images