Electronic cigarette cartridge and electronic cigarette comprising same

Abstract

The utility model relates to the technical field of electronic cigarettes, in particular to an electronic cigarette cartridge and an electronic cigarette comprising the same. The electronic cigarette cartridge provided by the utility model comprises a cartridge body; the atomization air channel penetrates through the smoke cartridge body and extends to a first smoking part of the smoke cartridge body; the air pressure sensing air passage is arranged in the smoke cartridge body and extends to a second suction part of the smoke cartridge body in a one-way manner; and a negative pressure air hole of the absolute pressure type air pressure sensor is communicated with the air pressure sensing air channel. According to the utility model, the air pressure sensing air passage and the atomization passage are mutually independent and are closer to the oral cavity of a user, so that on one hand, the suction action of the user can be sensitively detected, quick starting is realized, the effect similar to second suction is achieved, and the user experience is greatly improved; on the other hand, the problem of sensitivity mismatching caused by air hole adjustment in a traditional electronic cigarette is solved, the air pressure sensor is not prone to being affected by air hole adjustment, the requirement for different air inlet flow adjustment can be met, and the user experience consistency is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic cigarette technical field especially, relate to a kind of electronic cigarette cartridge, including its electronic cigarette. BACKGROUND

[0002] As the substitute product of traditional tobacco product, the social acceptance of electronic cigarette gradually improves, especially in developed countries in Europe and America. In the electronic cigarette, in order to simulate the feeling of smoking traditional tobacco products, the airflow sensor needs to sense the user's puffing action, so as to provide the electric signal for the atomizer to heat the tobacco tar.

[0003] In production practice, the applicant finds that the sensor of the prior art electronic cigarette is used for a long time in the tobacco tar atomization channel, and the tobacco tar is easily infiltrated into the sensor, thereby challenging the accuracy and reliability of the sensor. UTILITY MODEL CONTENT

[0004] I. Technical problems to be solved

[0005] The utility model expects to at least partially solve one of the above technical problems.

[0006] II. Technical solutions

[0007] The utility model provides a kind of electronic cigarette cartridge in the first aspect.The electronic cigarette cartridge includes: cartridge body;Atomization air duct, through cartridge body, extend to the first puffing position of cartridge body;Barometric sensing air duct, it is set in cartridge body, one-way extends to the second puffing position of cartridge body;Absolute pressure type barometric sensor, its negative pressure air hole is communicated to barometric sensing air duct.

[0008] In some embodiments of the utility model, the cartridge body includes: mouthpiece and oil depot, both are: combined connection or fixed connection;Barometric sensing air duct is set in mouthpiece;Mouthpiece forms sensor installation space;Absolute pressure type barometric sensor, its circuit board is fixed on the installation plane of sensor installation space;Its negative pressure air hole is aligned with barometric sensing air duct.

[0009] In some embodiments of the utility model, mouthpiece and oil depot are: combined connection;Sensor installation space is: the sensor installation groove in the bottom of mouthpiece, the sensor installation groove is communicated to barometric sensing air duct upwards;The circuit board of absolute pressure type barometric sensor is fixed on the upper surface of sensor installation groove.

[0010] In some embodiments of the utility model, mouthpiece and oil depot are combinedly connected by magnetic attraction mode.

[0011] In some embodiments of the utility model, sealing pad is arranged between the circuit board and the installation plane in the periphery of the negative pressure air hole.

[0012] In some embodiments of the utility model, the inside of the mouthpiece part forms a through atomization air passage mouthpiece section, the inside of the oil tank part forms a through atomization air passage oil tank section, and in the combined state of the mouthpiece part and the oil tank part, the atomization air passage mouthpiece section and the atomization air passage oil tank section together form an atomization air passage.

[0013] In some embodiments of the utility model, the bottom of the oil tank part is provided with N signal contacts, N ≥ 2, the output signal of the absolute pressure type air pressure sensor is led out by the circuit board, and the sensing signal line is connected to the N signal contacts.

[0014] In some embodiments of the utility model, the surface of the circuit board facing the oil tank part is provided with N windowed pads, the signal output end of the absolute pressure type air pressure sensor is connected to the N windowed pads, the upper surface of the oil tank part is provided with N male pin contacts corresponding to the N windowed pads, the N male pin contacts are connected to the N signal contacts at the bottom of the oil tank part through the sensing signal line, in the combined state of the mouthpiece part and the oil tank part, the N male pin contacts and the N windowed pads realize signal connection, and in the separated state of the mouthpiece part and the oil tank part, the N male pin contacts and the N windowed pads realize signal disconnection.

[0015] In some embodiments of the utility model, the mouthpiece part and the oil tank part are fixedly connected, the atomization air passage is an integrally formed air passage penetrating through the mouthpiece part and the oil tank part, the sensor mounting space is a sensor mounting cavity formed in the mouthpiece part and communicating upward to the air pressure sensing air passage, and the circuit board of the absolute pressure type air pressure sensor is fixed to the upper plane of the sensor mounting cavity.

[0016] In some embodiments of the utility model, the air pressure sensing air passage penetrates through the cartridge body, the bottom of the cartridge body forms a sensor mounting space, the circuit board of the absolute pressure type air pressure sensor is fixed to the mounting plane of the sensor mounting space, the negative pressure air hole is aligned with the air pressure sensing air passage, the bottom of the cartridge body is provided with N signal contacts, N ≥ 2, the output signal of the absolute pressure type air pressure sensor is led out by the circuit board, and the sensing signal line is connected to the N signal contacts.

[0017] In some embodiments of the utility model, the air pressure sensing air passage is a straight line type air passage, an L type air passage, an S type air passage or a hook type air passage.

[0018] In some embodiments of the utility model, the length of the air pressure sensing air passage along the center line direction of the atomization air passage is between 2mm and 10mm.

[0019] In some embodiments of the utility model, the first suction part and the second suction part are different suction parts or the same suction part at the top end of the cartridge body.

[0020] In some embodiments of the utility model, the air pressure sensing air passage is a linear air passage, which is parallel to the atomization air passage; the first suction position and the second suction position are different suction positions at the top end of the smoke cartridge body.

[0021] In some embodiments of the utility model, the absolute pressure type air pressure sensor is an absolute pressure type piezoelectric sensor, which comprises: a circuit board having a negative pressure hole formed therein; a shell coupled to the circuit board to form a sensor inner cavity therebetween; a MEMS chip encapsulated in the sensor inner cavity; a substrate comprising: a peripheral substrate outer ring body; a substrate back cavity formed in the substrate outer ring body; a piezoelectric sensing diaphragm formed on the substrate outer ring body and the substrate back cavity; an ASIC chip having a signal input end connected to the piezoelectric sensing diaphragm of the MEMS chip and a signal output end serving as a signal output end of the absolute pressure type piezoelectric sensor; wherein the negative pressure hole is the only passage for communication between the sensor inner cavity and the outside.

[0022] The utility model provides a kind of electronic cigarette in the second aspect of the utility model.The electronic cigarette includes: the electronic cigarette cartridge as above;Cigarette holder, and electronic cigarette cartridge combination formula connection.

[0023] III. Beneficial Effects

[0024] From the above technical solution, the utility model has at least one of the following beneficial effects relative to the prior art:

[0025] 1. In the prior art high-end electronic cigarette, a device for adjusting the size of the air hole is configured to meet the mouth suction, lung suction and other non-smoking modes, which requires a starting negative pressure for the sensor. Under the same suction force, the air hole is enlarged, the airflow velocity is slowed down, and the negative pressure measured at the sensor is smaller, so the starting negative pressure of the sensor needs to be adjusted to a smaller value to trigger successfully. The optimal setting of the starting negative pressure of the industry air pressure sensor is-120Pa, which is sufficient to meet the mouth suction mode, but it is difficult to meet the lung suction with a larger air hole opening. Usually, the starting negative pressure needs to be set to about-40Pa to get similar experience. However, the starting negative pressure of-40Pa (lower than-100Pa) is easily disturbed by the outside environment to cause false start.

[0026] In the utility model, the absolute pressure type air pressure sensor is arranged at the cigarette holder instead of in the cigarette holder, and the air pressure sensing air passage and the atomization passage are independent of each other and relatively close to the user's oral cavity. On the one hand, it can sensitively detect the user's suction action and start quickly to achieve a similar "second suction" effect, greatly improving the user experience. On the other hand, it solves the problem of sensitivity mismatch caused by adjusting the air hole in traditional electronic cigarettes. The air pressure sensor is not easily affected by the adjustment of the air hole and can meet the needs of different air intake flow adjustments (mouth suction and lung suction), ensuring the consistency of user experience.

[0027] 2. In existing technologies, the airway of electronic cigarette sensors adopts a bidirectional airway design, and the sensor cavity uses a dual-hole design. The first hole connects to the atmosphere, and the second hole connects to the oral cavity. Voltage sensing is achieved through the flow of gas. However, during prolonged e-liquid atomization, e-liquid condensation can easily intrude into the electronic cigarette sensor, causing damage, leading to malfunction of the device, and rendering it unusable.

[0028] In this invention, the air pressure sensing channel is a unidirectional independent channel separate from the atomizing channel, and an absolute pressure type air pressure sensor is used, thereby preventing e-liquid from entering the air pressure sensing channel and improving the service life of the electronic cigarette sensor.

[0029] 3. In the existing technology, the sensor cavity adopts a dual-hole design, with the first hole connected to the atmosphere and the second hole connected to the oral cavity. When there is a drastic change in atmospheric pressure, it may lead to the risk of false triggering.

[0030] In this invention, the circuit board, housing, and piezoelectric sensing diaphragm constitute a fully enclosed structure, ensuring that the air pressure inside the sensor cavity C remains constant at one standard atmosphere. If air intake occurs through the inlet, the diaphragm responds rapidly and outputs a corresponding electrical signal. In particular, the fully enclosed structure prevents the infiltration of e-liquid moisture, ensuring the electronic cigarette sensor can operate stably for extended periods. More importantly, because the sensor cavity C is isolated from the atmosphere, the air pressure inside the sensor cavity remains stable. Under these conditions, when an aircraft descends or approaches a heat source, the electronic cigarette will not be accidentally triggered, thus improving the safety of the electronic cigarette.

[0031] 4. In the existing technology, electronic cigarette cartridges are non-detachable units.

[0032] In this invention, the e-cigarette cartridge is designed as a detachable mouthpiece and an e-liquid tank, which can provide users with a better DIY experience, that is, the sensor part can be freely replaced to meet different taste preferences. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the first embodiment of the electronic cigarette cartridge of this utility model.

[0034] Figure 2 To adopt Figure 1 The diagram shows the structure of an electronic cigarette cartridge.

[0035] Figure 3 for Figure 2 The diagram shows an absolute pressure piezoelectric sensor in an electronic cigarette cartridge.

[0036] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the MEMS chip in the absolute pressure piezoelectric sensor.

[0037] Figure 5 Figure 1 is a structural schematic diagram of a first embodiment of an electronic cigarette cartridge according to the present application.

[0038] Figure 6 Figure 2 is a structural schematic diagram of a second embodiment of an electronic cigarette cartridge according to the present application. DETAILED DESCRIPTION

[0039] The present application is characterized in that the electronic cigarette sensor is arranged in the one-way sensor channel of the cartridge, thereby reducing the pollution of the tobacco tar to the electronic cigarette sensor and improving the accuracy of the electronic cigarette sensor.

[0040] In order to make the purpose, technical solutions and advantages of the present application clearer, the following further describes the present application in detail with reference to the drawings and in conjunction with specific embodiments.

[0041] The present application provides an electronic cigarette cartridge in a first aspect. Figure 1 Figure 1 is a structural schematic diagram of a first embodiment of an electronic cigarette cartridge according to the present application. Figure 2 Figure 1 Figure 2 is a structural schematic diagram of a second embodiment of an electronic cigarette cartridge according to the present application.

[0042] As shown in Figures 1 and 2, the electronic cigarette cartridge 100 includes a cartridge body 110, an atomization air channel 120, a pressure sensing air channel 130 and an absolute pressure sensor 140. Figure 1 As shown in Figures 1 and 2, the electronic cigarette cartridge 100 includes a cartridge body 110, an atomization air channel 120, a pressure sensing air channel 130 and an absolute pressure sensor 140. Figure 2 In the present embodiment, the cartridge 100 and the cigarette rod 200 are connected in a combined manner. The cigarette rod 200 is provided with a control board, a battery and a Type-C small plate. Unlike the prior art in which a double-hole air pressure sensor is arranged in the cigarette rod, the present embodiment uses an absolute pressure sensor and arranges it in the one-way air hole of the cartridge. Specifically, the electronic cigarette cartridge of the present embodiment includes:

[0043] The cartridge body 110;

[0044] The atomization air channel 120 extends through the cartridge body and extends to a first puffing position of the cartridge body and is internally provided with a heating wire 121;

[0045] The pressure sensing air channel 130 is arranged in the cartridge body and extends to a second puffing position of the cartridge body in a one-way manner.

[0046] The absolute pressure sensor 140 is arranged in the cartridge body and is provided with a negative pressure air hole.

[0047] The following describes each part of the electronic cigarette cartridge of the present embodiment in detail.

[0048] ​In the prior art, the electronic cigarette gas pressure sensor for monitoring the smoking action is arranged at the head of the cigarette rod. The advantage of such arrangement is that the smoke generated by smoking flows out from the cartridge along the smoke flow channel, and the probability of backflow to the sensor is low. In high-end electronic cigarettes, a device for adjusting the size of the air hole is configured to meet the mouth suction, lung suction and other non-smoking modes, thereby requiring the starting negative pressure of the sensor. Under the same suction force, the air hole is adjusted to be larger, the air flow rate is slower, and the negative pressure measured at the sensor is smaller, so the starting negative pressure of the sensor needs to be adjusted to be smaller to successfully trigger. The starting negative pressure of the gas pressure sensor in the industry is optimally set to -120 Pa, which is sufficient to meet the mouth suction mode, but for the lung suction with a larger air hole opening, it is difficult to meet the requirements, and the starting negative pressure usually needs to be set to about -40 Pa to obtain similar experience. However, the starting negative pressure of -40 Pa (lower than -100 Pa) is easily disturbed by the external environment to cause false start.

[0049] In this embodiment, when the user smokes, air enters from the air hole 201, passes through the tobacco oil heated by the heating wire 121 in the atomization air channel 120, enters the user's oral cavity at the suction site, and completes the smoking process. Unlike the prior art, in this embodiment, the absolute pressure type gas pressure sensor 140 is arranged at the cartridge rather than in the cigarette rod, and the gas pressure sensing air channel 130 and the atomization channel 120 are independent of each other and relatively close to the user's oral cavity, thereby solving the problem of sensitivity mismatch caused by adjusting the air hole in traditional electronic cigarettes, and the gas pressure sensor is not easily affected by the adjustment of the air hole, can cope with the demand for different air intake flow adjustment (mouth suction and lung suction), and ensures the consistency of user experience.

[0050] In the prior art, the air channel of the electronic cigarette sensor adopts a bidirectional air channel, and the sensor cavity adopts a double-hole design, the first hole is connected to the atmosphere, and the second hole is connected to the oral cavity, and the voltage is sensed by the flow of gas. However, during the long-term atomization of tobacco oil, the invasion of tobacco oil condensate into the electronic cigarette sensor can cause damage, leading to dysfunction of the electronic cigarette, and even causing the electronic cigarette to be scrapped in severe cases.

[0051] Unlike the prior art, in this embodiment, the gas pressure sensing air channel 130 is a one-way independent air channel independent of the atomization air channel, and an absolute pressure type gas pressure sensor 140 is used, thereby avoiding the entry of tobacco oil into the gas pressure sensing air channel and improving the service life of the electronic cigarette sensor. The following will be described respectively.

[0052] As shown in Figure 1 Although a gap for the lead of the sensing signal line is left on the side wall of the oil reservoir part, the gap is only for the lead and has no gas flow function. Moreover, in order to improve the sensitivity of the sensor, the negative pressure air hole of the electronic cigarette sensor is arranged opposite to the gas pressure sensing air channel, and a sealing rubber ring 145 is arranged around it.

[0053] In order to ensure that the user's smoking action can be perceived by the electronic cigarette sensor, the air pressure sensing air channel 130 in the embodiment adopts a straight one-way air channel, and the length of the air pressure sensing air channel in the direction of the center line of the atomization air channel is 5 mm, but the utility model is not limited thereto.

[0054] In other embodiments of the utility model, the air pressure sensing air channel can also be an L-shaped one-way air channel, an S-shaped one-way air channel or a hook-shaped one-way air channel. Those skilled in the art should understand that the bending of the air channel will affect the sensing accuracy of the electronic cigarette sensor, therefore, the sensitivity of these deformation modes is not as good as the straight air channel of the embodiment. However, the hook-shaped one-way air channel, for example, in the shape of "√" or similar to the shape of a fish hook, can further reduce the influence of the tobacco oil condensate on the electronic cigarette sensor, and has unique advantages. In other embodiments of the utility model, the length of the air pressure sensing air channel in the direction of the center line of the atomization air channel can be between 0.2 cm and 0.8 cm, and can change to adapt to the size change of the cartridge itself.

[0055] Please refer to Figure 1 In the embodiment, the atomization air channel 120 and the air pressure sensing air channel 130 correspond to different suction positions on the cartridge body, that is, the atomization air channel 120 and the air pressure sensing air channel 130 are two parallel air channels, the starting points of which are different, and the ending points are also different. By such arrangement, the tobacco oil can be prevented from entering the air pressure sensing air channel to the greatest extent, and the sensor can be prevented from being contaminated.

[0056] In other embodiments of the utility model, the atomization air channel 120 and the air pressure sensing air channel 130 can also correspond to the same suction position on the cartridge body, that is, the atomization air channel 120 and the air pressure sensing air channel 130 are two intersecting air channels, the starting points of which are different, and the ending points are the same suction port at the top end of the cartridge body, and the first suction position and the second suction position are the same position.

[0057] In the embodiment, the absolute pressure type air pressure sensor is an absolute pressure type piezoelectric sensor, and the internal air pressure is 1 standard atmosphere. Figure 3 For Figure 2 the schematic diagram of the absolute pressure type piezoelectric sensor in the electronic cigarette cartridge is shown. Figure 4 For Figure 3 the cross-sectional schematic diagram of the MEMS chip in the absolute pressure type piezoelectric sensor is shown. As Figure 3 and Figure 4 In the embodiment, the absolute pressure type air pressure sensor 140 includes:

[0058] a circuit board 141, a negative pressure hole 141a being formed in the circuit board 141;

[0059] a shell 142, which is buckled on the circuit board, and forms a sensor inner cavity C between the two.

[0060] The MEMS chip 143 is packaged in the sensor inner cavity, and the position corresponding to the negative pressure hole on the circuit board includes:

[0061] The substrate 143a includes: a peripheral substrate outer ring body; and a substrate back cavity formed in the substrate outer ring body.

[0062] The piezoelectric sensing diaphragm is formed on the substrate outer ring body and the substrate back cavity.

[0063] The ASIC chip 144 is connected to the piezoelectric sensing diaphragm of the MEMS chip at the signal input end, and the signal output end serves as the signal output end of the absolute pressure piezoelectric sensor.

[0064] The negative pressure hole 141a is the only passage for the sensor inner cavity C to communicate with the outside, and the air pressure in the sensor inner cavity C is 1 standard atmosphere.

[0065] In the prior art, the sensor inner cavity adopts a double-hole design, the first hole is connected to the atmosphere, and the second hole is connected to the oral cavity. When the air pressure of the atmosphere changes dramatically, the risk of false triggering is caused.

[0066] Unlike the prior art, in the embodiment, the circuit board, the shell, and the piezoelectric sensing diaphragm form a fully enclosed structure, thereby ensuring that the air pressure in the sensor inner cavity C is equal to 1 standard atmosphere. If the suction hole performs a suction action, the diaphragm will quickly respond and output the corresponding electrical signal. In particular, the fully enclosed structure prevents the penetration of tobacco oil and water vapor, ensuring that the electronic cigarette sensor can work stably for a long time. More importantly, since the sensor inner cavity C is isolated from the atmosphere, the air pressure in the sensor inner cavity remains stable. In this case, when the aircraft descends or approaches a heat source, the electronic cigarette body will not be falsely triggered, thereby improving the safety of the electronic cigarette.

[0067] Further, in the absolute pressure sensor of the embodiment, the shell 142 is a metal shell, which is packaged and fixed on the circuit board 141 by welding, and can also shield external electromagnetic interference.

[0068] In the embodiment, the piezoelectric sensing diaphragm includes: a support layer 143b formed above the substrate outer ring body and the substrate back cavity; a lower electrode layer 143c, a piezoelectric layer 143d, and an upper electrode layer 143e formed in sequence on the support layer; and a hydrophobic fumed silica coating 143f formed above the upper electrode layer.

[0069] It should be noted that the piezoelectric sensing diaphragm is designed with a hydrophobic fumed silica coating on the surface, which has good hydrophobic and oleophobic properties, and can greatly reduce the adhesion and deposition of tobacco oil and water vapor condensate on the surface of the piezoelectric sensing diaphragm.

[0070] Those skilled in the art should understand that the above sensor film is only the preferred embodiment of the present application. In some other embodiments of the present application, the sensor film can also be in the form of a double wafer, which can also achieve the present application, and will not be described further here.

[0071] As for the material, thickness and other features of the substrate, back cavity, piezoelectric layer and electrode layer, reference can be made to the related description of the prior art, which will not be further described here.

[0072] Please continue to refer to Figure 1 In the present embodiment, the cartridge body includes a combined mouthpiece A and an oil tank B. The oil tank B forms an oil tank 160. Both the first and second suction sites are located at the top end of the mouthpiece. Here, the combined connection means that it can be easily separated and combined. Preferably, magnetic blocks M are provided at the corresponding positions of the mouthpiece and the oil tank, and the combined connection is achieved by the two magnetic blocks. However, those skilled in the art should understand that the above is only the preferred mode of the present application. In other embodiments of the present application, the mouthpiece and the oil tank can also be combined by a snap-fit mode.

[0073] Please refer to Figure 1 As for the sensor installation, one side of the bottom of the mouthpiece forms a sensor installation groove, which is connected upward to a gas pressure sensing airway; the circuit board of the absolute pressure gas pressure sensor 140 is fixed upward to the upper surface of the sensor installation groove; the negative pressure hole of the absolute pressure gas pressure sensor is directly opposite the gas pressure sensing airway 130; around the negative pressure hole, a sealing gasket is provided between the circuit board and the corresponding installation plane of the sensor installation space.

[0074] Please refer to Figure 1 As for the airway design, the gas pressure sensing airway 130 is located in the mouthpiece. At the same time, a through atomizing airway mouthpiece section 120A is formed on the inner side of the mouthpiece; a through atomizing airway oil tank section 120B is formed on the inner side of the oil tank; in the combined state of the mouthpiece and the oil tank, the atomizing airway mouthpiece section 120A and the atomizing airway oil tank section 120B together form an atomizing airway 120.

[0075] As Figure 1 and Figure 3As shown, in terms of circuit design, unlike existing electronic cigarette sensors, this embodiment extends the sensor circuit board for assembly and signal connection. Specifically, four windowed pads 141b are provided on the surface of the circuit board facing the oil tank section, and the signal output terminal of the absolute pressure type pressure sensor is connected to these four windowed pads 141b. Four male solder pins 151 corresponding to the windowed pads are provided on the upper surface of the oil tank section B. These four male solder pins are connected to four signal contacts 153 at the bottom of the oil tank section—AT contact, GND contact, OUT contact, and VDD contact—via side-mounted sensor signal lines 152. Based on this, when the mouthpiece section A and the oil tank section B are combined, the four male solder pins 151 and the four windowed pads 141b are connected; when the mouthpiece section A and the oil tank section B are separated, the four male solder pins 151 and the four windowed pads 141b are disconnected.

[0076] In existing technologies, e-cigarette cartridges are non-detachable units. However, in this embodiment, by designing the e-cigarette cartridge as a detachable mouthpiece and e-liquid reservoir, a better DIY experience can be provided to users, allowing the sensor to be freely replaced to meet different taste preferences.

[0077] Those skilled in the art should understand that although the number of signal contacts is set to four in this embodiment, the present invention is not limited thereto. The number of signal contacts can be set according to the needs of the actual scenario, and the present invention can be implemented in any way.

[0078] Figure 5 This is a schematic diagram of the structure of the second embodiment of the electronic cigarette cartridge of this utility model. The difference between this embodiment and the first embodiment is that the cartridge is an integrated design, that is, the mouthpiece and the e-liquid tank are fixedly connected, and a sensor mounting cavity is provided inside the cartridge. Here, "fixedly connected" means that the user will not separate the mouthpiece and the e-liquid tank during normal use.

[0079] like Figure 5 As shown, in this embodiment, the air pressure sensing airway is a straight airway; the cartridge body includes an integrally designed mouthpiece A and a fuel tank B. The fuel tank B forms a fuel tank 160. The atomizing airway 120 is an airway that passes through the mouthpiece and the fuel tank. The air pressure sensing airway 130 is disposed inside the mouthpiece and extends directly to the inhalation area. The sensor mounting space is a sensor mounting cavity inside the cartridge body; the circuit board of the absolute pressure sensor 140 is fixed to the upper surface of the sensor mounting cavity.

[0080] In terms of circuit design, four signal contacts 153 are provided at the bottom of the cartridge body; the signal output terminal of the absolute pressure sensor 140 is led out through the circuit board and connected to the sensing signal line 152; the sensing signal line 152 passes through the gap between the side of the oil tank and the cartridge body and is connected to the four signal contacts 153.

[0081] The advantage of the embodiment is that the mouthpiece and the oil tank are fixedly connected and integrally designed, and the air tightness and reliability are better than those of the first embodiment.

[0082] Figure 6 The difference between the embodiment and the first embodiment is that the cartridge is a whole, and the mouthpiece and the oil tank are no longer distinguished. Specifically, in the design of the electronic cigarette cartridge, the mouthpiece and the oil tank can be integrally formed.

[0083] As shown in the drawings, Figure 6 In the embodiment, the atomization air channel 120 and the air pressure sensing channel 130 both penetrate the cartridge body 110. A sensor mounting space is formed at the bottom of the cartridge body. For the absolute pressure sensor 140, the circuit board is fixed to the mounting plane of the sensor mounting space, and the negative pressure air hole is aligned with the air pressure sensing channel.

[0084] In terms of circuit design, four signal contacts 153 are arranged at the bottom of the cartridge body. The output signal of the absolute pressure sensor is led out by the circuit board, and the sensing signal line is connected to the four signal contacts.

[0085] The advantage of the embodiment is that the cartridge is a whole, the reliability is better, the distance between the absolute pressure sensor and the signal contact is closer, and the circuit connection is more convenient and reliable.

[0086] So far, the three embodiments of the electronic cigarette cartridge have been introduced.

[0087] Based on the electronic cigarette cartridge in the above embodiments, the utility model also provides an electronic cigarette. Please refer to Figure 1 The electronic cigarette embodiment of the utility model comprises: the cartridge 100 in the above embodiment; and a cigarette holder 200, which is connected in combination with the electronic cigarette cartridge. The cigarette holder 200 is provided with a control board, a battery and a Type-C small plate.

[0088] So far, the various embodiments of the utility model have been introduced. According to the above description, those skilled in the art should have a clear understanding of the utility model.

[0089] It should be noted that, unless explicitly stated to the contrary, the numerical parameters in the specification and claims of the utility model can be approximate values, which can be changed according to the content of the utility model. Specifically, all the numbers indicating the content, reaction conditions and the like described in the specification and claims should be understood as being modified by the term "about" in all cases, which means that the content includes a change of ±10% in some embodiments from the specific number.

[0090] The ordinal numbers, such as "first", used in the description and claims, as well as Arabic numbers, letters, etc., are intended to modify the corresponding elements only and are used to clearly distinguish one element from another element with the same name, but do not mean that the element has any ordinal number, nor represent the order of one element and another element.

[0091] It should also be noted that the direction terms mentioned in the embodiments, such as "center", "transverse", "longitudinal", "top", "bottom", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Throughout the drawings, the same elements are represented by the same or similar reference numerals. In addition, the shapes and sizes of the components in the drawings do not reflect the actual size and ratio, but only illustrate the content of the embodiments of the present application.

[0092] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be a fixed connection, or a combined connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0093] Those skilled in the art should understand that in the claims and description of the present application, the word "comprising" does not exclude the presence of elements not listed in the claims. The word "one" or "an" before an element does not exclude the presence of multiple such elements.

[0094] For certain implementations, if it is not the key content of the present application, and is well known to those skilled in the art, due to the limitation of the length of the specification, it is not described in detail in the drawings or the text of the specification, at this time, it can be understood by referring to the related prior art.

[0095] In addition, the purpose of providing the above embodiments is only to make the present application meet the legal requirements, and the present application can be implemented in many different forms, and should not be interpreted as being limited to the embodiments described herein.

[0096] Similarly, it is to be appreciated that the use of any of the included example embodiments is an abuse of the field, and should not be interpreted as reflecting an intention that the claimed application require a greater scope than is reflected by the examination of the included example embodiments. In particular, the examination of the included example embodiments is intended to demonstrate that each of the claimed applications aspects is wider in scope than is reflected by the included example embodiments. Moreover, the example embodiments can be interchanged with one another or with other embodiments, as appropriate, based on design and reliability considerations, i.e., technical features from different example embodiments can be freely combined to form further embodiments. Accordingly, the claims, as follows, are hereby expressly incorporated into this Detailed Description section by this specific inclusion, wherein each claim is separately standing on its own merit by virtue of being specifically and distinctly claimed. Each claim is hereby incorporated into this Detailed Description section by this specific inclusion.

[0097] The above detailed description has shown, described, and pointed out the various features of the application. It will be appreciated that various modifications can be made within the scope of the present application, and the foregoing description is not to be construed as limiting the application. Accordingly, all such modifications are intended to be included within the scope of the application.

Claims

1. An electronic cigarette cartridge, characterized by, The electronic cigarette cartridge comprises: a cartridge body; an atomization gas passage extending through the cartridge body to a first suction position of the cartridge body; a gas pressure sensing passage arranged in the cartridge body and extending to a second suction position of the cartridge body in one direction; an absolute pressure type gas pressure sensor with a negative pressure hole communicating with the gas pressure sensing passage.

2. The electronic cigarette cartridge according to claim 1, wherein the cartridge body comprises a mouthpiece and an oil tank, which are connected in a combined or fixed manner; the gas pressure sensing passage is arranged in the mouthpiece, and the mouthpiece forms a sensor mounting space; the circuit board of the absolute pressure type gas pressure sensor is fixed to a mounting plane of the sensor mounting space, and the negative pressure hole of the absolute pressure type gas pressure sensor is aligned with the gas pressure sensing passage.

3. The electronic cigarette cartridge according to claim 2, wherein the mouthpiece and the oil tank are connected in a combined manner; the sensor mounting space is a sensor mounting groove at the bottom of the mouthpiece, which is upwardly communicated with the gas pressure sensing passage, and the circuit board of the absolute pressure type gas pressure sensor is fixed to the upper surface of the sensor mounting groove.

4. The electronic cigarette cartridge according to claim 3, wherein the mouthpiece and the oil tank are connected in a combined manner by magnetic attraction; and / or, a sealing gasket is arranged between the circuit board and the mounting plane around the negative pressure hole; and / or, the inside of the mouthpiece forms a through atomization gas passage mouthpiece section, the inside of the oil tank forms a through atomization gas passage oil tank section, and the atomization gas passage mouthpiece section and the atomization gas passage oil tank section together form the atomization gas passage in the combined state of the mouthpiece and the oil tank; and / or, the bottom of the oil tank is provided with N signal contacts, N≥2, the output signal of the absolute pressure type gas pressure sensor is led out by the circuit board, and the sensing signal line is connected to the N signal contacts.

5. The electronic cigarette cartridge according to claim 4, wherein the surface of the circuit board facing the oil tank is provided with N windowed pads, and the signal output end of the absolute pressure type gas pressure sensor is connected to the N windowed pads; the upper surface of the oil tank is provided with N male pin terminals corresponding to the N windowed pads, and the N male pin terminals are connected to the N signal contacts at the bottom of the oil tank through the sensing signal line; in the combined state of the mouthpiece and the oil tank, the N male pin terminals and the N windowed pads are in signal connection, and in the separated state of the mouthpiece and the oil tank, the N male pin terminals and the N windowed pads are in signal disconnection.

6. The electronic cigarette cartridge according to claim 2, wherein the mouthpiece and the oil tank are connected in a fixed manner; the atomization gas passage is an integrally formed passage through the mouthpiece and the oil tank; the sensor mounting space is a sensor mounting cavity formed in the mouthpiece, which is upwardly communicated with the gas pressure sensing passage, and the circuit board of the absolute pressure type gas pressure sensor is fixed to the upper plane of the sensor mounting cavity.

7. The electronic cigarette cartridge according to claim 1, wherein the gas pressure sensing passage extends through the cartridge body. The bottom of the cartridge body forms a sensor mounting space; The circuit board of the absolute pressure sensor is fixed to the mounting plane of the sensor mounting space; and the negative pressure air hole is aligned with the air pressure sensing air channel; The bottom of the cartridge body is provided with N signal contacts, N≥2; the output signal of the absolute pressure sensor is led out by the circuit board, and the sensing signal line is connected to the N signal contacts.

8. The electronic cigarette cartridge according to any one of claims 1 to 7, characterized in that: The air pressure sensing air channel is a straight air channel, an L-shaped air channel, an S-shaped air channel, or a hook-shaped air channel; And / or, the length of the air pressure sensing air channel along the center line direction of the atomization air channel is between 2 mm and 10 mm; And / or, the first and second suction positions are different suction positions or the same suction position at the top end of the cartridge body; And / or, the air pressure sensing air channel is a straight air channel parallel to the atomization air channel; and the first and second suction positions are different suction positions at the top end of the cartridge body.

9. The electronic cigarette cartridge of any one of claims 1 to 7, wherein, The absolute pressure sensor is an absolute pressure piezoelectric sensor, which comprises: A circuit board having a negative pressure hole formed therein; An outer shell coupled to the circuit board to form a sensor inner cavity therebetween; A MEMS chip encapsulated in the sensor inner cavity, and the position corresponding to the negative pressure hole on the circuit board comprises: A substrate comprising a peripheral substrate outer ring body and a substrate back cavity formed in the substrate outer ring body; A piezoelectric sensing diaphragm formed on the substrate outer ring body and the substrate back cavity; An ASIC chip having a signal input end connected to the piezoelectric sensing diaphragm of the MEMS chip and a signal output end as a signal output end of the absolute pressure piezoelectric sensor; The negative pressure hole is the only passage for communication between the sensor inner cavity and the outside.

10. An electronic cigarette, characterized in that, The electronic cigarette cartridge according to any one of claims 1 to 9; A cigarette rod connected in combination with the electronic cigarette cartridge. ​

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