Electronic atomization device

Abstract

The application discloses an electronic atomization device, which comprises an atomizer, a battery and a circuit board. The battery comprises a battery cell and a first connector. The circuit board is provided with a control unit and a second connector. The control unit comprises a second power supply pin and a detection port. The first power supply pin of the first connector is connected with two electrodes of the battery cell, the input and output pin of the first connector is connected with one electrode of the battery cell, the first power supply pin of the second connector is connected with the second power supply pin, and the input and output pin of the second connector is connected with the detection port. When the first connector and the second connector are connected, the first power supply pin of the first connector is electrically connected with the first power supply pin of the second connector, and the input and output pin of the first connector is electrically connected with the input and output pin of the second connector. The detection port detects the level signal of the input and output pin of the second connector to determine whether the battery is disassembled. In the above manner, whether the battery is disassembled can be identified.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and in particular to an electronic atomization device. Background Technology

[0002] Due to environmental protection and legal regulations, batteries need to be recycled. However, recycling batteries from disposable e-cigarette devices is difficult, leading to a rise in e-cigarette devices with removable batteries. However, improper battery removal or replacement can cause problems. For example, improper removal of the battery during high-power output can cause a sudden voltage drop, resulting in poor atomization. Similarly, replacing the original battery with a lower-quality one can cause overheating, bulging, or even explosion or fire. Therefore, it is necessary to identify whether the battery has been removed. Utility Model Content

[0003] This application provides an electronic atomizing device capable of identifying whether a battery has been removed.

[0004] In a first aspect, embodiments of this application provide an electronic atomizing device, comprising: an atomizer for atomizing a liquid matrix to generate an aerosol; a battery including a cell and a first connector; a circuit board having a control unit and a second connector disposed thereon; wherein, both the first connector and the second connector include a first power supply pin and an input / output pin, and the control unit includes a second power supply pin and a detection port; the first power supply pin of the first connector is electrically connected to the two electrodes of the cell in a one-to-one correspondence, the input / output pin of the first connector is electrically connected to one of the electrodes of the cell, the first power supply pin of the second connector is electrically connected to the second power supply pin of the control unit, and the input / output pin of the second connector is electrically connected to the detection port; when the first connector and the second connector are connected, the first power supply pin of the first connector is electrically connected to the first power supply pin of the second connector, and the input / output pin of the first connector is electrically connected to the input / output pin of the second connector; the detection port is used to detect the level signal of the input / output pin of the second connector to determine whether the battery has been removed.

[0005] In one or more embodiments, the pin length of the input / output pin of the second connector is less than the pin length of the first power supply pin of the second connector.

[0006] In one or more embodiments, the input / output pins of the first connector are electrically connected to the positive terminal of the battery cell.

[0007] In one or more embodiments, the circuit board is further provided with a storage unit for recording information when the battery is removed.

[0008] In one or more embodiments, the storage unit is integrated into the control unit.

[0009] In one or more embodiments, one of the first connector and the second connector is a female connector and the other is a male connector that can be plugged into the female connector.

[0010] In one or more embodiments, both the first power supply pin and the second power supply pin include a positive power supply pin and a negative power supply pin.

[0011] In one or more embodiments, the circuit board is further provided with a third connector, a first switch circuit, and a second switch circuit; the third connector is used for electrical connection to an external power supply; the first switch circuit is electrically connected between the positive power supply pin of the second connector and the atomizer, and the first switch circuit is also electrically connected to the third connector; the second switch circuit is electrically connected between the third connector and the atomizer; when the third connector is electrically connected to the external power supply, the second switch circuit is turned on in response to the voltage of the external power supply, and the first switch circuit is turned off in response to the voltage of the external power supply, and the external power supply supplies power to the atomizer; when the third connector is not electrically connected to the external power supply, and the first connector and the second connector are connected, the second switch circuit is turned off, and the first switch circuit is turned on in response to the voltage of the battery cell, and the battery cell supplies power to the atomizer.

[0012] In one or more embodiments, the first switching circuit includes a first PMOS transistor and a first resistor; the gate of the first PMOS transistor is electrically connected to the third connector and the first end of the first resistor, the source of the first PMOS transistor is electrically connected to the positive power supply pin of the second connector, the drain of the first PMOS transistor is electrically connected to the atomizer, and the second end of the first resistor is grounded.

[0013] In one or more embodiments, the second switching circuit includes a second PMOS transistor and a second resistor. The control terminal of the second PMOS transistor is grounded through the second resistor. The source of the second PMOS transistor is electrically connected to a third connector, and the drain of the second PMOS transistor is electrically connected to an atomizer.

[0014] The beneficial effects of this application are as follows: The electronic atomizing device of this application embodiment includes an atomizer, a battery, and a circuit board. The battery includes a cell and a first connector. A control unit and a second connector are disposed on the circuit board. Both the first and second connectors include a first power supply pin and an input / output pin. The control unit includes a second power supply pin and a detection port. The first power supply pin of the first connector is electrically connected to the two electrodes of the cell in a one-to-one correspondence. The input / output pin of the first connector is electrically connected to one of the electrodes of the cell. The first power supply pin of the second connector is electrically connected to the second power supply pin of the control unit. The input / output pin of the second connector is electrically connected to the detection port. When the first and second connectors are connected, the first power supply pin of the first connector is electrically connected to the first power supply pin of the second connector, and the input / output pin of the first connector is electrically connected to the input / output pin of the second connector. The detection port is used to detect the level signal of the input / output pin of the second connector to determine whether the battery has been removed. Specifically, when the first and second connectors switch from connection to disconnection, the level signal of the input / output pin of the second connector changes. The control unit can determine whether the battery has been removed based on whether the level signal changes, i.e., the control unit can identify whether the battery has been removed. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are not intended to limit the embodiments, and elements having the same reference numerals in the drawings are designated as similar elements.

[0016] Figure 1 This is a schematic diagram of the electronic atomizing device provided in the embodiments of this application. Figure 1 ; Figure 2 This is a schematic diagram of the electronic atomizing device provided in the embodiments of this application. Figure 2 ; Figure 3 This is a schematic diagram of the electronic atomizing device provided in the embodiments of this application. Figure 3 ; Figure 4 This is a schematic diagram of the electronic atomizing device provided in the embodiments of this application. Figure 4 ; Figure 5 This is a schematic diagram of the electronic atomizing device provided in the embodiments of this application. Figure 5 ; Figure 6 This is a schematic diagram of the circuit structure of the first switching circuit and the second switching circuit provided in the embodiments of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and thoroughly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0018] It should be noted that when an element is described as "connected" to another element, it can be directly connected to the other element, or there can be one or more intermediate elements between them.

[0019] Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0020] Please refer to Figure 1 , Figure 1 This is a schematic diagram of an electronic atomizing device provided in an embodiment of this application. The electronic atomizing device refers to any device that generates an aerosol from a liquid matrix during use, which typically evaporates the liquid aerosol to form the matrix, which may or may not contain nicotine.

[0021] like Figure 1 As shown, the electronic atomizing device 100 includes an atomizer 10, a battery 20, and a circuit board 30.

[0022] The atomizer 10 is used to atomize a liquid matrix to generate an aerosol. The liquid matrix is ​​a matrix capable of releasing volatile compounds that can form aerosols. These volatile compounds can be released by heating the aerosol-generating matrix.

[0023] The battery 20 includes a cell 21 and a first connector 22, wherein the cell 21 is used to store and release electrical energy; the first connector 22 is an electromechanical component for establishing an electrical or signal connection between electronic devices or systems. The circuit board 30 is provided with a second connector 31 and a control unit 32, wherein the second connector 31 is an electromechanical component for establishing an electrical or signal connection between electronic devices or systems; the control unit 32 may be a microcontroller unit (MCU) or a digital signal processing (DSP) controller, etc.

[0024] Both the first connector 22 and the second connector 31 include a first power supply pin (which includes pins B11 and B12) and an input / output pin IO1. The control unit 32 includes a second power supply pin (which includes pins B212 and B22) and a detection port IO2.

[0025] The first power supply pin of the first connector 22 is electrically connected to each of the two electrodes of the battery cell 21 in a one-to-one correspondence. Specifically, pin B11 of the first connector 22 is electrically connected to one electrode of the battery cell 21, and pin B12 of the first connector 22 is electrically connected to the other electrode of the battery cell 21. The input / output pin IO1 of the first connector 22 is electrically connected to one of the electrodes of the battery cell. Figure 1 Taking the electrode of the battery cell connected to pin B11 of the first connector 22 and the input / output pin IO1 of the first connector 22 as an example, the first power supply pin of the second connector 31 is electrically connected to the second power supply pin of the control unit 32, that is, pin B11 of the second connector 31 is electrically connected to pin B21 of the control unit 32, and pin B12 of the second connector 31 is electrically connected to pin B22 of the control unit 32. The input / output pin IO1 of the second connector 31 is electrically connected to the detection port IO2.

[0026] When the first connector 22 and the second connector 31 are connected, the first power supply pin of the first connector 22 is electrically connected to the first power supply pin of the second connector 31 (that is, pin B11 of the first connector 22 is electrically connected to pin B11 of the second connector 31, and pin B12 of the first connector 22 is electrically connected to pin B12 of the second connector 31), and the input / output pin IO1 of the first connector 22 is electrically connected to the input / output pin IO1 of the second connector 31.

[0027] The detection port IO2 is used to detect the level signal of the input / output pin IO1 of the second connector 31 to determine whether the battery 20 has been removed. It can be understood that when the first connector 22 is disconnected from the second connector 31, the corresponding battery 20 is removed. Furthermore, when the first connector 22 switches from connected to disconnected from the second connector 31, the level signal of the input / output pin IO1 of the second connector 31 changes, and the level signal of the detection port IO2 of the control unit 32 also changes accordingly. Therefore, the control unit 32 can determine whether the battery 20 has been removed based on whether this level signal changes. Thus, through the above process, the control unit 32 can identify whether the battery 20 has been removed.

[0028] In some embodiments, both the first power supply pin and the second power supply pin include a positive power supply pin and a negative power supply pin. Figure 1For example, in the first power supply pin of the first connector 22, pin B11 is the positive power supply pin, and pin B12 is the negative power supply pin; in the second connector 31, pin B11 is the positive power supply pin, and pin B12 is the negative power supply pin; in the second power supply pin of the control unit 32, pin B21 is the positive power supply pin, and pin B22 is the negative power supply pin. Specifically, pin B11 of the first power supply pin of the first connector 22 is electrically connected to the positive terminal V+ of the battery cell 21, and pin B12 of the first power supply pin of the first connector 22 is electrically connected to the negative terminal V- of the battery cell 21.

[0029] Figure 2 The pin lengths of each pin in the second connector 31 are illustrated exemplarily. Figure 2 As shown, the pin length of the first power supply pin of the second connector 31 is L1, meaning that the pin lengths of pins B11 and B12 of the second connector 31 are both L1. The pin length of the input / output pin IO1 of the second connector 31 is L2. L1 is greater than L2. Therefore, when the first connector 22 and the second connector 31 switch from connection to disconnection, on the one hand, the input / output pins IO1 of the first connector 22 and the second connector 31 disconnect first, causing a change in the level signal of the input / output pin IO1 of the second connector 31, that is, a change in the level signal of the detection port; on the other hand, the first power supply pin of the first connector 22 and the first power supply pin of the second connector 31 remain connected, that is, the battery cell 21 continues to supply power to the control unit 32. Then, the control unit 32 can determine whether the battery 20 has been removed based on the change in the level signal of the detection port.

[0030] Please continue to refer to Figure 2 In some embodiments, the input / output pin IO1 of the first connector 22 is electrically connected to the positive terminal V+ of the battery cell 21. Therefore, when the first connector 22 is connected to the second connector 31, the level signals of the input / output pin IO1 of the first connector 22, the input / output pin IO1 of the second connector 31, and the detection port IO2 are all high-level signals. When the connection between the first connector 22 and the second connector 31 is switched to disconnection, the level signals of the input / output pin IO1 of the second connector 31 and the detection port IO2 both switch from high-level signals to low-level signals. The control unit 32 can determine that the battery 20 has been removed based on the switch of the detection port IO2 level signal from high to low.

[0031] In some embodiments, such as Figure 3As shown, a storage unit 33 is also provided on the circuit board 30. The storage unit 33 is used to record information when the battery 30 is removed. For example, the storage unit 33 is used to record whether the battery 30 has been removed and the time when the battery 30 is removed.

[0032] In some embodiments, such as Figure 4 As shown, the storage unit 33 is integrated into the control unit 32. That is, the storage unit 33 and the control unit 32 are manufactured on the same chip, which can shorten the data transmission path, improve the data transmission speed, and reduce the risk of data loss.

[0033] In some embodiments, one of the first connector 22 and the second connector 31 is a female connector, and the other is a male connector that can be plugged into the female connector. Thus, when it is necessary to establish or disconnect the connection between the first connector 22 and the second connector 31, it is only necessary to plug the first connector 22 into the second connector 31 or pull the first connector 22 out of the second connector 31, which facilitates the installation and removal of the battery 20.

[0034] In some embodiments, such as Figure 5 As shown, the circuit board 30 is also provided with a third connector 34, a first switch circuit 35, and a second switch circuit 36.

[0035] The third connector 34 is used for electrical connection with the external power supply 200. The first switch circuit 35 is electrically connected between the positive power supply pin (i.e., pin B11) of the second connector 31 and the atomizer 10. The first switch circuit 35 is also electrically connected to the third connector 34. The second switch circuit 36 ​​is electrically connected between the third connector 34 and the atomizer 10.

[0036] Specifically, when the third connector 34 is electrically connected to the external power supply 200, the second switching circuit 36 ​​is turned on in response to the voltage of the external power supply 200, and the first switching circuit 35 is turned off in response to the voltage of the external power supply 200. The external power supply 200 supplies power to the atomizer 10 through the third connector 34 and the second switching circuit 36.

[0037] When the third connector 34 is not electrically connected to the external power supply 200, and the first connector 22 and the second connector 31 are connected, the second switch circuit 36 ​​is turned off, and the first switch circuit 35 is turned on in response to the voltage of the battery cell 21. The battery cell 21 supplies power to the atomizer 10 through the first connector 22, the second connector 31 and the first switch circuit 35.

[0038] Through the above process, the automatic switching between the battery cell 21 and the external power supply 200 to power the atomizer 10 is realized. Thus, if the battery cell 21 is removed due to reaching the end of its cycle life, the atomizer 10 can be powered by the external power supply 200 to maintain the normal use of the electronic atomizing device 100.

[0039] Please refer to Figure 6 , Figure 6 An exemplary circuit structure of the first switching circuit 35 and the second switching circuit 36 ​​is shown. Figure 6 As shown, the first switching circuit 35 includes a first PMOS transistor Q1 and a first resistor R1.

[0040] The gate of the first PMOS transistor Q1 is electrically connected to the third connector 34 and the first end of the first resistor R1, the source of the first PMOS transistor Q1 is electrically connected to the positive power supply pin (i.e., pin B11) of the second connector 31, the drain of the first PMOS transistor Q1 is electrically connected to the atomizer 10, and the second end of the first resistor R1 is grounded to GND.

[0041] The first resistor R1 is used to form an RC circuit with the parasitic capacitance between the gate and source of the first PMOS transistor Q1, so as to slowly turn on the first PMOS transistor Q1 and avoid the first PMOS transistor Q1 from having a large current at the moment of turn-on, which would damage the first PMOS transistor Q1.

[0042] In this embodiment, a PMOS transistor is used as the switching transistor in the first switching circuit 35. In other embodiments, the switching transistor in the first switching circuit 35 can be any controllable switch, such as an insulated gate bipolar transistor (IGBT) device, an integrated gate commutated thyristor (IGCT) device, a gate turn-off thyristor (GTO) device, a silicon controlled rectifier (SCR) device, a junction gate field-effect transistor (JFET) device, a MOS controlled thyristor (MCT) device, etc.

[0043] In some embodiments, the second switching circuit 36 ​​includes a second PMOS transistor Q2 and a second resistor R2.

[0044] The control terminal of the second PMOS transistor Q2 is grounded to GND through the second resistor R2, the source of the second PMOS transistor Q2 is electrically connected to the third connector 34, and the drain of the second PMOS transistor Q2 is electrically connected to the atomizer 10.

[0045] The second resistor R2 is used to form an RC circuit with the parasitic capacitance between the gate and source of the second PMOS transistor Q2, so as to slowly turn on the second PMOS transistor Q2 and avoid the second PMOS transistor Q2 from having a large current at the moment of turn-on, which would damage the second PMOS transistor Q2.

[0046] In this embodiment, a PMOS transistor is used as the switching transistor in the second switching circuit 36. In other embodiments, the switching transistor in the second switching circuit 36 ​​can be any controllable switch, such as an insulated gate bipolar transistor (IGBT) device, an integrated gate commutated thyristor (IGCT) device, a gate turn-off thyristor (GTO) device, a silicon controlled rectifier (SCR) device, a junction gate field-effect transistor (JFET) device, a MOS controlled thyristor (MCT) device, etc.

[0047] The following are Figure 6 The principle of the circuit structure shown will be explained.

[0048] When the third connector 34 is connected to the external power supply 200, the source voltage of the second PMOS transistor Q2 is the voltage of the external power supply 200, and the gate of the second PMOS transistor Q2 is grounded (GND). Therefore, the gate voltage of the second PMOS transistor Q2 is zero, and the gate-source voltage (i.e., the voltage difference between the gate and source) of the second PMOS transistor Q2 is less than zero and less than the conduction threshold of the second PMOS transistor Q2, so the second PMOS transistor Q2 is turned on. At the same time, the gate voltage of the first PMOS transistor Q1 is the voltage of the external power supply 200, and the source voltage of the first PMOS transistor Q1 is the voltage of the battery cell 21 (when the first connector 22 is connected to the second connector 34) or the source voltage of the first PMOS transistor Q1 is zero (when the first connector 22 is not connected to the second connector 34). In both of these cases, the gate-source voltage of the first PMOS transistor Q1 is greater than zero and greater than the conduction threshold of the first PMOS transistor Q1, so the first PMOS transistor Q1 is turned off. External power supply 200 supplies power to atomizer 10 through third connector 34 and second PMOS transistor Q2.

[0049] When the third connector 34 is not connected to the external power supply 200, and the first connector 22 is connected to the second connector 34, the source voltage of the second PMOS transistor Q2 is zero, and the gate of the second PMOS transistor Q2 is grounded (GND). Therefore, the gate voltage of the second PMOS transistor Q2 is zero, and the gate-source voltage of the second PMOS transistor Q2 is equal to zero and greater than the conduction threshold of the second PMOS transistor Q2 (the conduction threshold of the second PMOS transistor Q2 is usually negative), so the second PMOS transistor Q2 is turned off. At the same time, the gate voltage of the first PMOS transistor Q1 is zero, and the source voltage of the first PMOS transistor Q1 is the voltage of the battery cell 21. The gate-source voltage of the first PMOS transistor Q1 is less than zero and less than the conduction threshold of the first PMOS transistor Q1, so the first PMOS transistor Q1 is turned on. The battery cell 21 supplies power to the atomizer 10 through the first connector 22, the second connector 34, and the first connector 22 and the second connector 34.

[0050] Through the above process, the automatic switching between the battery cell 21 and the external power supply 200 to power the atomizer 10 is achieved. Therefore, if the battery cell 21 is removed due to reaching its cycle life, the atomizer 10 can be powered by the external power supply 200 to maintain the normal operation of the electronic atomizing device 100. Furthermore, the switching process between the battery cell 21 and the external power supply 200 is based on the voltage values ​​of the battery cell 21 and the external power supply 200, without occupying the I / O ports of the control unit 32.

[0051] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

[0052] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electronic atomizing device, characterized in that, include: Atomizers are used to atomize liquid matrices to produce aerosols. The battery includes the battery cell and the first connector; A circuit board, on which a control unit and a second connector are provided; The first connector and the second connector each include a first power supply pin and an input / output pin, and the control unit includes a second power supply pin and a detection port; The first power supply pin of the first connector is electrically connected to the two electrodes of the battery cell in a one-to-one correspondence. The input / output pin of the first connector is electrically connected to one of the electrodes of the battery cell. The first power supply pin of the second connector is electrically connected to the second power supply pin of the control unit. The input / output pin of the second connector is electrically connected to the detection port. When the first connector and the second connector are connected, the first power supply pin of the first connector is electrically connected to the first power supply pin of the second connector, and the input / output pin of the first connector is electrically connected to the input / output pin of the second connector. The detection port is used to detect the level signal of the input / output pins of the second connector to determine whether the battery has been removed.

2. The electronic atomizing device of claim 1, wherein, The pin length of the input / output pin of the second connector is less than the pin length of the first power supply pin of the second connector.

3. The electronic atomizing device of claim 1, wherein, The input / output pins of the first connector are electrically connected to the positive terminal of the battery cell.

4. The electronic atomizing device of claim 1, wherein, The circuit board is also equipped with a storage unit for recording information when the battery is removed.

5. The electronic atomizing device of claim 4, wherein, The storage unit is integrated into the control unit.

6. The electronic atomizing device according to claim 1, characterized in that, One of the first connector and the second connector is a female connector, and the other is a male connector that can be plugged into the female connector.

7. The electronic atomizing device of claim 1, wherein, Both the first power supply pin and the second power supply pin include a positive power supply pin and a negative power supply pin.

8. The electronic atomizing device according to claim 1, characterized in that, The circuit board is also provided with a third connector, a first switch circuit and a second switch circuit; The third connector is used for electrical connection with an external power source; The first switching circuit is electrically connected between the positive power supply pin of the second connector and the atomizer. The first switching circuit is also electrically connected to the third connector. The second switching circuit is electrically connected between the third connector and the atomizer. When the third connector is electrically connected to the external power source, the second switching circuit is turned on in response to the voltage of the external power source, and the first switching circuit is turned off in response to the voltage of the external power source, and the external power source supplies power to the atomizer. When the third connector is not electrically connected to the external power source and the first connector and the second connector are connected, the second switching circuit is turned off, and the first switching circuit is turned on in response to the voltage of the battery cell, and the battery cell supplies power to the atomizer.

9. The electronic atomizing device of claim 8, wherein, The first switching circuit includes a first PMOS transistor and a first resistor; The gate of the first PMOS transistor is electrically connected to the third connector and the first terminal of the first resistor, the source of the first PMOS transistor is electrically connected to the positive power supply pin of the second connector, the drain of the first PMOS transistor is electrically connected to the atomizer, and the second terminal of the first resistor is grounded.

10. The electronic atomizing device according to claim 8, characterized in that, The second switch circuit comprises a second PMOS tube and a second resistor, a control end of the second PMOS tube is connected to ground through the second resistor, a source of the second PMOS tube is electrically connected to the third connector, and a drain of the second PMOS tube is electrically connected to the atomizer.

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