An electronic cigarette

Abstract

The utility model discloses an electronic cigarette, including the flexible circuit board, the flexible circuit board includes the ground wire and at least one first induction electrode, the ground wire includes the first wiring end, and every first induction electrode includes the second wiring end, and the electronic cigarette can form the capacitance between the first induction electrode and the ground wire on the flexible circuit board when working, and the capacitance change value of the capacitance is based on this, and the capacitance change value of the capacitance caused according to temperature is reflected to the electronic cigarette, and further can guarantee that the electronic cigarette is under the high temperature condition and touches the normal work, and will not misreport point, improves the product competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of electronic cigarette technology, and in particular to an electronic cigarette. Background Technology

[0002] Currently, electronic cigarettes use flexible touchscreens. However, the temperature changes during the use of electronic cigarettes, and flexible touchscreens are quite sensitive to temperature. When heated, the dielectric constant of some layers will change, resulting in a large change in capacitance. When existing electronic cigarettes need to measure capacitance, they cannot reflect the capacitance change caused by temperature. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide an electronic cigarette. The specific technical solution is as follows:

[0004] This utility model provides an electronic cigarette, comprising:

[0005] A flexible circuit board, the flexible circuit board including a ground wire and at least one first sensing electrode; the ground wire includes a first terminal, and each of the first sensing electrodes includes a second terminal.

[0006] In one possible implementation, the flexible circuit board includes a plurality of first sensing electrodes.

[0007] In one possible implementation, the first sensing electrode is disposed in the non-signal trace area of ​​the flexible circuit board.

[0008] In one possible implementation, each of the first sensing electrodes is disposed in a different region of the non-signal trace area of ​​the flexible circuit board.

[0009] In one possible implementation, the electronic cigarette further includes a housing, a flexible circuit board, and a touch panel;

[0010] The flexible circuit board is disposed inside the housing;

[0011] The housing is provided with a mounting groove, and the touch panel is disposed in the mounting groove;

[0012] The touch panel is electrically connected to the flexible circuit board;

[0013] The distance between the signal line in the first channel of the flexible circuit board and the ground line is greater than a preset threshold, wherein the first channel is the signal transmission line between the touch panel and the flexible circuit board.

[0014] In one possible implementation, the electronic cigarette further includes a display screen; the display screen is electrically connected to the flexible circuit board, the display screens are all disposed in the mounting slot, and the touch panel is attached to the display screen.

[0015] In one possible implementation, the spacing is 0.3 mm.

[0016] In one possible implementation, it also includes:

[0017] Control module; the control module is disposed inside the housing;

[0018] The control module includes a third terminal and a fourth terminal, wherein the third terminal is connected to the first terminal and the fourth terminal is connected to the second terminal;

[0019] The touch panel includes a fifth terminal and a sixth terminal, and the control module further includes a seventh terminal and an eighth terminal.

[0020] The seventh terminal is connected to the fifth terminal, and the eighth terminal is connected to the sixth terminal.

[0021] In one possible implementation, the first sensing electrode is disposed on the flexible circuit board near the touch panel.

[0022] In one possible implementation, the housing includes a first sub-housing and a second sub-housing;

[0023] The first sub-shell and the second sub-shell are connected by a press-fitting method;

[0024] The mounting slot is disposed on the first sub-shell, and the flexible circuit board is disposed inside the second sub-shell.

[0025] The beneficial effects of this utility model embodiment are as follows:

[0026] This utility model provides an electronic cigarette, including a flexible circuit board. The flexible circuit board includes a ground wire and at least one first sensing electrode. The ground wire includes a first terminal, and each of the first sensing electrodes includes a second terminal. When the electronic cigarette is working, the capacitance formed between the first sensing electrode and the ground wire on the flexible circuit board can be measured. The capacitance change value reflects the capacitance change value of the electronic cigarette caused by temperature. This further ensures that the electronic cigarette can operate normally under high temperature conditions, without false alarms, and improves product competitiveness.

[0027] Of course, implementing any product or method of this utility model does not necessarily require achieving all of the above advantages at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0029] Figure 1 This is a schematic diagram of a first structure of an electronic cigarette provided in an embodiment of the present utility model;

[0030] Figure 2 This is a schematic diagram of a second structure of an electronic cigarette provided in an embodiment of the present invention;

[0031] Figure 3 A third structural schematic diagram of an electronic cigarette is provided for embodiments of this utility model;

[0032] Figure 4 A flowchart illustrating the control module provided in an embodiment of this utility model;

[0033] Figure 5 This is a schematic diagram of the fourth structure of an electronic cigarette provided in an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of a flexible circuit board for an electronic cigarette provided in an embodiment of this utility model;

[0035] Figure 7-1 A front view of an electronic cigarette provided in an embodiment of this utility model;

[0036] Figure 7-2 A rear view of an electronic cigarette provided in an embodiment of this utility model;

[0037] Figure 7-3 A side view of an electronic cigarette provided in an embodiment of this utility model. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art based on the present utility model are within the protection scope of the present utility model.

[0039] As temperature increases, capacitance continuously increases. In conventional flexible OLED (Organic Light-Emitting Diode) touch products, the capacitance change caused by temperature at high temperatures is greater than the capacitance change caused by finger touch, and both are greater than the reference capacitance. The principle of touch detection is based on C... s -C base >C 阈值 .

[0040] C s =C p +C F

[0041] C p This includes the capacitance between the panel (touch panel), COF (chip flip-flop), and FPC (flexible printed circuit board) circuits and GND (ground).

[0042] C F The capacitance between the object and the touch panel.

[0043] C base C is the first reference value for the total induced capacitance. 阈值 This is the preset reporting threshold.

[0044] When C s -C base >C 阈值 The time will be announced.

[0045] Especially when using a PC (Polycarbonate Cove) cover, heating will change the dielectric constant of the PC, and the temperature will remain for a longer time than that of glass, making it more likely to affect the touch function.

[0046] To ensure the electronic cigarette functions properly under high temperatures, prevent false alarms, and enhance product competitiveness, this utility model provides an electronic cigarette, comprising:

[0047] A flexible circuit board, the flexible circuit board including a ground wire and at least one first sensing electrode; the ground wire includes a first terminal, and each of the first sensing electrodes includes a second terminal.

[0048] like Figure 1 As shown, the electronic cigarette includes a touch panel 01, a control module 02, and a flexible circuit board 03. The touch panel 01 and the control module 02 are electrically connected to the flexible circuit board 03. The flexible circuit board 03 includes at least one first sensing electrode 031.

[0049] The flexible printed circuit board 03 (FPC) can have signal line routing areas and non-signal line routing areas. The signal line routing area includes the TP (touch panel) channel. The TP channel is mainly the signal transmission line between the touch panel 01 and the flexible printed circuit board 03. The signal lines set on the TP channel are mainly made of copper foil etching.

[0050] At least one first sensing electrode 031 can also be provided on the flexible circuit board 03. The first sensing electrode 031 can be located at any position on the flexible circuit board 03, which can be determined based on the actual situation and is not limited here. The number of first sensing electrodes 031 can be one or more, which can be determined based on the actual situation and is not limited here.

[0051] like Figure 2 As shown in one example, the flexible circuit board includes signal trace areas and non-signal trace areas. A first sensing electrode 031 is disposed in the non-signal trace area of ​​the flexible circuit board, and the first sensing electrode 031 is mainly formed by etching copper foil. Because the first sensing electrode 031 is disposed in the non-signal trace area of ​​the flexible circuit board, the first sensing capacitor does not reflect the capacitance change caused by finger touch, but only detects the amount of capacitance change due to temperature.

[0052] The touch panel 01 and the control module 02 are electrically connected to the flexible circuit board 03, and the first sensing electrode 031 is also electrically connected to the control module 02.

[0053] When an electronic cigarette is in use, an inductive capacitor is formed between the first sensing electrode 031 after power is applied and the ground wire in the flexible circuit board 03.

[0054] Measuring the capacitance change of the sensing capacitor between the first and second terminals can reflect the capacitance change of the electronic cigarette caused by temperature. This further ensures that the electronic cigarette's touch control works normally under high temperatures, preventing false alarms and improving product competitiveness.

[0055] In one possible implementation, the flexible circuit board includes a plurality of first sensing electrodes.

[0056] When the flexible circuit board 03 has enough space, multiple sensing points can be added to the flexible circuit board 03 to detect temperature changes at different points on the screen.

[0057] The channel area of ​​the first sensing electrode 031 is similar in size to the self-contained cube in the film layer of the touch panel, such as... Figure 5As shown, the flexible circuit board 03 includes multiple first sensing electrodes 031. Each newly added first sensing electrode 031 detects temperature changes, and the average value of the final detection result is taken to improve measurement accuracy.

[0058] In one possible implementation, the first sensing electrode is disposed in the non-signal trace area of ​​the flexible circuit board.

[0059] like Figure 3 As shown, the first sensing electrode 031 is set in the non-signal line routing area A of the flexible circuit board. In this way, the first sensing capacitor does not reflect the capacitance change caused by finger touch, but only detects the amount of capacitance change caused by temperature.

[0060] In one possible implementation, each of the first sensing electrodes is disposed in a different region of the non-signal trace area of ​​the flexible circuit board.

[0061] Multiple sensing points are added to different areas of the flexible circuit board 03 to detect temperature changes at different points on the screen.

[0062] In one possible implementation, the electronic cigarette further includes a housing, a flexible circuit board, and a touch panel;

[0063] The flexible circuit board is disposed inside the housing;

[0064] The housing is provided with a mounting groove, and the touch panel is disposed in the mounting groove;

[0065] The touch panel is electrically connected to the flexible circuit board;

[0066] The distance between the signal line in the first channel of the flexible circuit board and the ground line is greater than a preset threshold, wherein the first channel is the signal transmission line between the touch panel and the flexible circuit board.

[0067] The spacing between the conductive traces transmitting electrical signals and the ground trace is greater than a preset threshold. Simultaneously, the spacing between the TP channel trace and the GND trace is increased. Figure 6 As shown, Figure 6 Channel 1 is TP channel 1, channel 2 is TP channel 2, channel 3 is TP channel 3, channel 4 is TP channel 4, d is the spacing between the TP channel trace and the GND trace, 032 is the GND trace, 033 is the signal line in the first channel, TP channel is the first channel, and 04 is COF.

[0068] According to the formula C = ξS / 4kπd, the capacitance decreases as the spacing increases, thereby reducing the coupling capacitance on the flexible circuit board 03 and thus reducing C. S This ensures that the change in capacitance is less than the reporting threshold.

[0069] In one possible implementation, the electronic cigarette further includes a display screen; the display screen is electrically connected to the flexible circuit board, the display screens are all disposed in the mounting slot, and the touch panel is attached to the display screen.

[0070] The display screen on an electronic cigarette can show device status information, operation instructions, and personalized settings. In one example, the display screen is a flexible display screen, such as a flexible OLED (Organic Light-Emitting Diode) display screen.

[0071] For example, the electronic cigarette also includes a driver chip, which is connected to the display screen via a flexible circuit board. The driver chip is used to provide signals to the display screen and control the display screen to display corresponding content.

[0072] The display screen provides users with intuitive device status information, operation guidance, and personalized settings. By integrating and visually presenting information such as battery level, parameters, and faults, users can more easily control the device and understand its status.

[0073] In one possible implementation, the spacing is 0.3 mm.

[0074] The spacing between the conductive lines transmitting electrical signals and the ground line in the flexible circuit board 03 can be set to 0.3mm.

[0075] In one possible implementation, it also includes:

[0076] Control module; the control module is disposed inside the housing;

[0077] The control module includes a third terminal and a fourth terminal, wherein the third terminal is connected to the first terminal and the fourth terminal is connected to the second terminal;

[0078] The touch panel includes a fifth terminal and a sixth terminal, and the control module further includes a seventh terminal and an eighth terminal.

[0079] The seventh terminal is connected to the fifth terminal, and the eighth terminal is connected to the sixth terminal.

[0080] The control module 02 is used to: measure the first sensing capacitance formed between the first sensing electrode 031 and the ground wire in the flexible circuit board 03 at preset time intervals; obtain the first detection value of the current first sensing capacitance; calculate the difference between the first detection value and the second detection value to obtain the capacitance change value; the second detection value is the value obtained before detecting the first detection value; determine whether the total sensing capacitance of the touch panel 01 meets the reporting conditions based on the capacitance change value, and realize the reporting if the reporting conditions are met.

[0081] The control module 02 can detect the induced capacitance formed between the first sensing electrode 031 on the flexible circuit board 03 and the ground wire in the flexible circuit board 03. The induced capacitance formed between the first sensing electrode 031 and the ground wire in the flexible circuit board 03 is the first sensing capacitance.

[0082] Because temperature affects the dielectric constant of a capacitor, if the temperature rises during use, it will change the dielectric constant of the capacitor, thus affecting its capacitance value. There is a corresponding relationship between the change in capacitance and the change in temperature. Generally speaking, for every 1°C increase in temperature, the capacitance increases by approximately 200 pF. Based on the change in the capacitance of the first sensing capacitor, the change in capacitance caused by temperature can be determined.

[0083] The preset time period is determined based on actual conditions and is not limited here. The control module 02 can measure the capacitance value of the first sensing capacitor at preset time intervals.

[0084] The first detection value is the value measured by the control module on the first sensing capacitor in the current time period. The second detection value is the value measured before the first detection value. In one example, the second detection value is the value measured after the electronic cigarette is turned on; in another example, the second detection value is the value measured on the first sensing capacitor in the previous time period. For clarity, this will be explained in detail below.

[0085] Then, the difference between the first and second detection values ​​is calculated to obtain the capacitance change value. Since the first sensing capacitance does not reflect the capacitance change caused by finger touch, it only detects the change in capacitance due to temperature. Based on the capacitance change value, it can be determined whether the capacitance change is caused by temperature or by the change in capacitance value due to temperature. The total sensing capacitance of the touch panel is then determined based on the capacitance change value to see if it meets the reporting conditions. If the reporting conditions are met, the electrode coordinates at the finger touch point can be obtained, and processing based on these coordinates enables the reporting of the touch point.

[0086] The change in capacitance is calculated based on the measured capacitance value. The change in capacitance caused by temperature is used to determine whether the total sensing capacitance of the touch panel 01 meets the reporting requirements. This ensures that the touch product can work normally under high temperature conditions, without false reporting, and improves product competitiveness.

[0087] In one possible implementation, the control module 02 is specifically used for:

[0088] The second detection value is the value obtained from the first measurement after the electronic cigarette 00 is powered on; the control module 02 is specifically used for:

[0089] Obtain the detected value of the total sensing capacitance of the current touch panel 01;

[0090] The difference between the detected value of the total sensing capacitance of the current touch panel 01 and the capacitance change value is determined as the actual value of the current total sensing capacitance.

[0091] Calculate the difference between the actual value of the total sense capacitance and the first reference value of the total sense capacitance to obtain the first difference;

[0092] If the first difference is greater than the preset reporting threshold, the reporting condition is determined to be met; the first reference value of the total sensing capacitance is a value predetermined when the electronic cigarette 00 is turned on.

[0093] The second detection value is the value measured for the first time after the electronic cigarette 00 is powered on. When the electronic cigarette 00 is powered on, its temperature is the ambient temperature. The capacitance measurement value in the electronic cigarette is the actual capacitance value measured at the ambient temperature, and there will be no change in capacitance due to temperature rise. For example, the temperature when measuring the second detection value is a preset temperature. By calculating the difference between the first and second detection values, the capacitance change caused by the electronic cigarette's current temperature from the preset temperature to the point where the first detection value was measured can be obtained.

[0094] The control module can detect the total capacitance of the touch panel. The total capacitance includes a second capacitor and a third capacitor. The second capacitance includes the capacitance between the touch panel and the ground wire, the capacitance between the flip-chip film and the ground wire, and the capacitance between each wire in the flexible circuit board and the ground wire. The third capacitance is the capacitance between the object touching the touch panel and the touch panel.

[0095] C s =C p +C F

[0096] C p This includes the capacitance between the panel (touch panel), COF (chip flip-flop), and FPC (flexible printed circuit board) circuits and GND (ground).

[0097] C F The capacitance between the object and the touch panel.

[0098] Based on the capacitance change value caused by temperature, the actual value of the total sensing capacitance of the current touch panel is determined. In other words, the difference between the detected value of the total sensing capacitance of the current touch panel 01 and the capacitance change value is determined as the actual value of the current total sensing capacitance. The capacitance increase caused by temperature change is filtered out in real time, and only the capacitance of finger touch is retained.

[0099] Reporting principle: C s -C base >C 阈值

[0100] C base C is the first reference value for the total induced capacitance. 阈值 This is the preset reporting threshold.

[0101] If the first difference is greater than the preset reporting threshold, the reporting condition is determined to be met.

[0102] like Figure 3 As shown, the first sensing electrode 031 is set in the non-signal line routing area A of the flexible circuit board. In this way, the first sensing capacitor does not reflect the capacitance change caused by finger touch, but only detects the amount of capacitance change caused by temperature. Based on the capacitance change value caused by temperature, the actual value of the current total sensing capacitance of the touch panel is determined. The capacitance increase caused by temperature change is filtered out in real time, and only the capacitance of finger touch is retained, thereby ensuring the accuracy of the reporting.

[0103] In one possible implementation, the second detection value is the value measured in the previous time period of the first sensing capacitor; the control module 02 is specifically used for:

[0104] If the capacitance change value is less than a preset threshold, the capacitance change value is determined to be a capacitance change value caused by temperature. The sum of the current second reference value of the total sense capacitance and the capacitance change value is updated to the second reference value of the total sense capacitance. The difference between the detected value of the total sense capacitance and the updated second reference value of the total sense capacitance is calculated to obtain the first difference.

[0105] If the change in capacitance is not less than a preset threshold, calculate the difference between the detected value of the total sense capacitance and the current reference value of the total sense capacitance to obtain the first difference.

[0106] If the first difference is greater than the preset reporting threshold, the reporting condition is determined to be met.

[0107] like Figure 4 As shown, Figure 4This is a flowchart illustrating a control module provided in an embodiment of this application. The control module 02 measures the first sensing capacitance according to a preset time period, obtains the first detection value of the current first sensing capacitance and the second detection value of the first sensing capacitance measured in the previous period, and determines the difference between the two measured values ​​based on the first and second detection values. Because the capacitance change caused by temperature change is not as abrupt as a finger touch, the amount of change each time is within a preset range, for example, the preset range is 40pF to 60pF. It is determined whether the change value of the first capacitance is not less than a preset threshold. If the change value of the first capacitance is not less than the preset threshold, it means that the current capacitance change is caused by a finger touch. The difference between the detected value of the total sensing capacitance and the current reference value of the total sensing capacitance is calculated to obtain the first difference. If the first difference is greater than the preset reporting threshold, it is determined that the reporting condition is met.

[0108] If the change in the first capacitance is less than a preset threshold, it indicates that the current capacitance change is not caused by finger touch, but by a change in capacitance due to temperature. The second reference value of the total sensed capacitance can then be updated, confirming the capacitance change is based on the temperature-induced capacitance change. The sum of the current second reference value of the total sensed capacitance and the capacitance change value is used to update the second reference value of the total sensed capacitance. The difference between the detected value of the total sensed capacitance and the updated second reference value is calculated to obtain the first difference. In other words, the reference value of the total capacitance is continuously refreshed based on the capacitance change caused by temperature, causing the relative change in capacitance to approach 0. The difference between the detected value of the total sensed capacitance and the reference value of the total sensed capacitance is calculated to obtain the first difference. If the first difference is greater than a preset reporting threshold, the reporting condition is determined to be met.

[0109] In one possible implementation, the flexible circuit board 03 includes a plurality of first sensing electrodes 031;

[0110] The control module 02 is specifically used for:

[0111] At preset time intervals, the first sensing capacitance formed between each of the first sensing electrodes 031 and the ground wire in the flexible circuit board 03 is measured.

[0112] For each first sensing capacitor, calculate the difference between the first detection value and the second detection value corresponding to that first sensing capacitor to obtain the first change value;

[0113] Calculate the mean of each of the first change values, and use this mean as the capacitance change value.

[0114] When the flexible circuit board 03 has enough space, multiple sensing points can be added to the flexible circuit board 03 to detect temperature changes at different points on the screen.

[0115] The channel area of ​​the first sensing electrode 031 is similar in size to the self-contained cube in the film layer of the touch panel, such as... Figure 5 As shown, the flexible circuit board 03 includes multiple first sensing electrodes 031. Each newly added first sensing electrode 031 detects temperature changes, and the average value of the final detection result is fed back to the control module. The control module filters out the increased capacitance caused by temperature changes in real time, retaining only the capacitance from finger touch.

[0116] In one possible implementation, the flexible circuit board includes a plurality of first sensing electrodes;

[0117] The control module is specifically used for:

[0118] At preset time intervals, the first induced capacitance formed between each of the first sensing electrodes and the ground wire in the flexible circuit board is measured.

[0119] Calculate the average of the first detection values ​​corresponding to each first sensing capacitor to obtain the first value of the first sensing capacitor;

[0120] Calculate the average of the second detection values ​​corresponding to each first sensing capacitor to obtain the second value of the first sensing capacitor;

[0121] The difference between the first value and the second value of the first sensing capacitor is calculated to obtain the capacitance change value.

[0122] When the flexible circuit board 03 has enough space, multiple sensing points can be added to the flexible circuit board 03 to detect temperature changes at different points on the screen.

[0123] The channel area of ​​the first sensing electrode 031 is similar in size to the self-contained cube in the film layer of the touch panel, such as... Figure 5 As shown, the flexible circuit board 03 includes multiple first sensing electrodes 031. Each newly added first sensing electrode 031 detects temperature changes, and the average value of the final detection result is fed back to the control module. The control module filters out the increased capacitance caused by temperature changes in real time, retaining only the capacitance from finger touch.

[0124] In one possible implementation, the first sensing electrode is disposed on the flexible circuit board near the touch panel.

[0125] The first sensing electrode is located on the flexible circuit board near the touch panel. The first sensing electrode can more accurately reflect the change in capacitance value of the touch panel caused by temperature changes.

[0126] In one possible implementation, the housing includes a first sub-housing and a second sub-housing;

[0127] The first sub-shell and the second sub-shell are connected by a press-fitting method;

[0128] The mounting slot is disposed on the first sub-shell, and the flexible circuit board is disposed inside the second sub-shell.

[0129] like Figures 7-1 to 7-3 As shown, the housing includes a first sub-housing and a second sub-housing, which can be connected by pressing. The touch panel is disposed on the first sub-housing, while the flexible circuit board is disposed on the second sub-housing.

[0130] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0131] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0132] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. An electronic cigarette, characterized in that, include: A flexible circuit board, the flexible circuit board including a ground wire and at least one first sensing electrode; The ground wire includes a first terminal, and each of the first sensing electrodes includes a second terminal.

2. The electronic cigarette according to claim 1, characterized in that, The flexible circuit board includes multiple first sensing electrodes.

3. The electronic cigarette according to claim 1, characterized in that, The first sensing electrode is disposed in the non-signal line routing area of ​​the flexible circuit board.

4. The electronic cigarette according to claim 2, characterized in that, Each of the first sensing electrodes is disposed in a different region of the non-signal line routing area of ​​the flexible circuit board.

5. The electronic cigarette according to claim 1, characterized in that, The electronic cigarette also includes a housing, a flexible circuit board, and a touch panel; The flexible circuit board is disposed inside the housing; The housing is provided with a mounting groove, and the touch panel is disposed in the mounting groove; The touch panel is electrically connected to the flexible circuit board; The distance between the signal line in the first channel of the flexible circuit board and the ground line is greater than a preset threshold, wherein the first channel is the signal transmission line between the touch panel and the flexible circuit board.

6. The electronic cigarette according to claim 5, characterized in that, The electronic cigarette also includes a display screen; the display screen is electrically connected to the flexible circuit board, the display screens are all disposed in the mounting slot, and the touch panel is attached to the display screen.

7. The electronic cigarette according to claim 5, characterized in that, The spacing is 0.3 mm.

8. The electronic cigarette according to claim 5, characterized in that, Also includes: Control module; The control module is located inside the housing; The control module includes a third terminal and a fourth terminal, wherein the third terminal is connected to the first terminal and the fourth terminal is connected to the second terminal; The touch panel includes a fifth terminal and a sixth terminal, and the control module further includes a seventh terminal and an eighth terminal. The seventh terminal is connected to the fifth terminal, and the eighth terminal is connected to the sixth terminal.

9. The electronic cigarette according to claim 8, characterized in that, The first sensing electrode is disposed on the flexible circuit board near the touch panel.

10. The electronic cigarette according to claim 9, characterized in that, The housing includes a first sub-housing and a second sub-housing; The first sub-shell and the second sub-shell are connected by a press-fitting method; The mounting slot is disposed on the first sub-shell, and the flexible circuit board is disposed inside the second sub-shell.

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