Electronic cigarette sensor with circular oil-proof and dust-proof integrated structure

Abstract

The utility model relates to the technical field of electronic cigarette sensors, in particular to a round electronic cigarette sensor with an oil-proof and dust-proof integrated structure, which comprises a packaging support, an upper cover, a lower cover, a protective net, a micro-electro-mechanical sensor and an ASIC (application specific integrated circuit) chip. The bonding pad is formed to facilitate surface mounting of an external LED lamp or output of other functions, the packaging structure can be internally or externally provided with an LED, the epitaxial bonding pad extends out to enable the electronic cigarette sensor to be more diversified in welding mode and more excellent in quality performance, and welding of an outer line or a patch and other circuit modules can be achieved; the bottom of the ASIC is in full contact with the bottom of the packaging support through a heat-conducting colloid, and the AISC chip and a bonding wire thereof are filled with the heat-conducting encapsulating colloid, so that the connection stability and the heat dissipation performance of the AISC chip are ensured, and the output power is greatly improved; the problems of self-starting, high power consumption, low SMT compatibility, low production efficiency and low yield caused by the fact that a pollution source of the electronic cigarette sensor enters the diaphragm are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic cigarette sensors, in particular to an electronic cigarette sensor with a circular oil-proof and dust-proof integrated structure. Background Art

[0002] As we all know, the existing electronic cigarette sensors on the market are all electret structures, which include protective nets, shells, plates, gaskets, cavities, diaphragms and copper rings, ASICs, capacitors, circuit boards, and LED lamp beads. From this structure, it can be seen that the structure of the electret electronic cigarette sensors on the market is complex. The pressure sensor with a "hamburger" structure is assembled by three parts. The first part includes: protective nets, shells, plates, gaskets, cavities, diaphragms and copper rings; the second part includes: circuit boards, ASICs, capacitors, and LED components; the third part includes: back pads for welding external wires and protective nets; the first part is assembled by using the form of mounting to assemble the subcomponents manually and by machines. Assemble into the outer shell part; the second part is assembled by soldering ASIC, capacitor, and LED components in the form of SOT or DFN packaging on the circuit board through SMT patches. SOT packaging is a common IC packaging type. Compared with DFN packaging, its size is slightly larger. It is arranged on both sides of the package by bending the pins. Surface mount technology is usually used for welding. This technology allows components to be directly installed on the circuit board; the first and second parts are assembled into the basic structure of the electronic cigarette sensor by riveting the aluminum-magnesium alloy shell, and the external wires are bonded to the back of the circuit board by welding. The protective net on the outer shell is mounted on the device to form an electret structure electronic cigarette sensor.

[0003] The above structure also has the following disadvantages: ASIC welding SMT is prone to empty soldering, resulting in functional failure; SOT and DFN packaged ASICs have poor heat dissipation capabilities, low output power, and poor user experience; the air inlet of the electret circuit board has no protective net and is directly aligned with the diaphragm and the air intake channel, which is very easy to enter oil, rosin, and tin beads, resulting in the risk of self-starting or non-starting of the e-cigarette; the electret is composed of many components, complex structure, high difficulty in assembly, and low precision, resulting in high labor costs and low production yield; the protective net is external, resulting in the nano-coating surface of the protective net being worn or wiped off during the process, installation or use, resulting in the failure of the protective net and high investment cost of mounting equipment; module end installation pain points: the installation of external leads needs to be folded back through the sealing sleeve, which has poor air tightness; the number of functional pads is small, which is inconvenient for functional expansion. Utility Model Content

[0004] (I) Implementation principle of electronic cigarette sensor

[0005] In order to solve the above problems, the utility model provides an electronic cigarette sensor with a circular oil-proof and dust-proof integrated structure. The integrated structure of the circular oil-proof and dust-proof electronic cigarette sensor uses a MEMS packaging process. The main features of MEMS packaging are high integration, small size, high reliability, low power consumption and low cost. The electronic cigarette sensor is a sensor based on micro-electromechanical system technology. The packaging process of this structure is to connect and package multifunctional chips such as MEMS chips and ASIC chips in a packaging cavity by means of bonding wires, and the pads are connected to the external module by means of patches or welding external leads. When smoking and inhaling action occur, airflow changes occur. The airflow changes cause the distance between the diaphragm and the back plate of the micromotor sensor to change, thereby generating a capacitance change. The micromotor sensor transmits the signal of this capacitance change to the ASIC chip for processing through a low-impedance bonding wire. After ASIC processing, the electrical signal is transmitted to the external module through the functional pads of the packaging bracket to realize the corresponding functional output.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electronic cigarette sensor with a circular oil-proof and dust-proof integrated structure, comprising a packaging bracket, an upper cover, a lower cover, a protective net, a micro-electromechanical sensor and an ASIC chip, the packaging bracket being provided with a cavity with an upper opening, a high step being provided on one side of the bottom wall of the cavity, an air guide channel penetrating the high step and the bottom wall of the cavity being provided on the high step, the micro-electromechanical sensor being also provided on the high step, the ASIC chip being provided on the bottom wall of the cavity away from the high step, a plurality of groups of pads being embedded in the bottom wall of the cavity, wherein the pads in the cavity, the ASIC chip and the micro-electromechanical sensor are connected by connecting wires, an upper cover matching the cavity is provided above the packaging bracket, the upper cover is provided with an air intake hole, a lower cover matching the air guide channel is provided below the packaging bracket, the lower cover is provided with an air inlet hole, and a protective net is provided on the side of the upper cover and the lower cover close to the cavity.

[0008] Preferably, the packaging bracket is provided with a Z-shaped air guide channel so that the suction and air inlet channels and the diaphragm are not directly aligned, thereby preventing the smoke oil from penetrating the air inlet hole and the rosin infiltration and tin bead splashing during bottom welding from directly damaging the diaphragm.

[0009] Preferably, the upper cover, the lower cover and the protective net are an integrally formed structure, which improves the efficiency of mounting the protective net, protects the nano-coating on the protective net and reduces equipment cost investment.

[0010] Preferably, there is an epitaxial pad at the bottom of the cavity, which can be mounted on a chip and welded with external leads to connect other modules. The pad is not as compact as the electret, so when welding external leads, the welding operability is strong and the welding quality is high, and there will be no welding short circuit or cold soldering abnormalities. It can be mounted on other module circuits by using a chip method, without the need for external wiring connections, saving the cost of external wiring materials and increasing the metal contact area between the pad and the module circuit, increasing the sensor's own heat dissipation performance and improving power output.

[0011] Preferably, the cavity is also filled with a thermally conductive encapsulating glue for covering the bonding wires and the ASIC chip, so as to better protect the ASIC chip, reduce the influence of light noise, and improve the heat dissipation capacity. This process ensures the excellent heat dissipation performance of the ASIC, so that the electronic cigarette sensor can achieve stable high-power output and improve the electronic cigarette customer experience; it solves the difficulties of poor heat dissipation of traditional AISC packaging itself and failure caused by empty soldering after patching.

[0012] Preferably, among the several groups of pads, there are pads with anti-stretching structures, and the anti-stretching pads use special design methods and stretching and bending methods to fill the gap in packaging bracket technology in the current market.

[0013] Preferably, the cavity epitaxial pads can be formed in plurality. Compared with the traditional electret packaging mode, there are more output function pads, and the required functions can be designed in a diversified and flexible manner according to the client application scenarios, which is more in line with market demand and recognition.

[0014] Preferably, high and low step platforms are formed in the cavity of the packaging bracket, the high step has an inherent micro-electromechanical sensor, and the low step has an inherent ASIC chip. The high step is to protect the ASIC chip from splashing the encapsulation glue onto the surface of the micro-electromechanical sensor when the encapsulation glue is sprayed.

[0015] Preferably, the protective net is attached to the inner side of the upper cover and the lower cover to more effectively protect the nano layer of the protective net and prevent it from failing. The protective net is added with a non-stick film layer to reduce the risk of leakage when bonding the protective net.

[0016] Preferably, the pad at the bottom is sunken to form a large grounding area, which greatly increases the heat dissipation capacity of the ASIC chip and improves the power output capacity of the ASIC chip.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides an electronic cigarette sensor with a circular oil-proof and dust-proof integrated structure, which has the following beneficial effects:

[0019] 1. The circular oil-proof and dust-proof integrated electronic cigarette sensor adopts the MEMS micro-electromechanical system packaging process. In this process, the bottom of the ASIC is fully in contact with the bottom of the packaging bracket through the thermal conductive colloid, and the AISC chip and its bonding wire are filled with thermal conductive encapsulation glue to ensure the stability of its connection and heat dissipation;

[0020] 2. The upper and lower covers of the structure have built-in protective nets. The protective nets are made of non-woven fabrics coated with nano-film materials. The nano-film has a series of functions such as waterproof, oil-proof and radiation-proof, so that the protective net has waterproof, oil-proof and dust-proof functions, which is different from the external electret protective net; it avoids the wear and tear of the nano-coating during the process, installation or use, resulting in the failure of the protective net, and solves the difficulty of the sensor smoke oil and dust entering the diaphragm in the background technology, resulting in self-starting or non-starting;

[0021] 3. The MEMS sensor is generated by etching technology. The diaphragm and back plate are made of silicon crystal, and the holes on the back plate are etched by nano-scale technology. The back plate has a much smaller aperture than the electret plate, and has great advantages in sensitivity, waterproof and oil-proof, and high temperature resistance. Therefore, it is not easy to deform during the manufacturing process, the diaphragm tension is highly consistent, the service life is long, and the risk of self-starting is reduced;

[0022] 4. The pads formed by the stamping, stretching and electroplating process of the package bracket perfectly solve the problems of incomplete short circuit of metal etching between pads, open circuit caused by overcurrent and burnout of the open hole metal, and low solderability of the coating due to chemical contamination;

[0023] 5. The epitaxial pad can be welded and patched. The pad can be welded with external wires or connected to other modules through patching. The wire welding method is suitable for electret customers. The patch welding method reduces the cost of external wiring, has a stable adhesion to the module, is not easy to fall off, and has good heat dissipation, which solves the difficulty of airtightness in the installation of electret modules;

[0024] 6. The pads can be flexibly set and used to install multiple multifunctional chips, such as installing OVP charging protection tubes to increase high-voltage resistance, and charging chips to realize high-voltage charging electronic cigarette sensors, thus meeting the multifunctional requirements of electronic cigarette customers;

[0025] 7. An inverted "Z"-shaped air hole is provided in the package bracket to prevent the air intake duct and the diaphragm from being directly aligned, so as to prevent the oil, water and dust passing through the protective net from directly damaging the diaphragm. When welding on the air intake surface, tin beads splash and rosin infiltrate the diaphragm to damage the diaphragm;

[0026] 8. The waterproof net and the shell are integrally formed. The waterproof net and the shell are mounted in batches by batch mounting, which solves the efficiency and cost difficulties of mounting the protective net with a single electret, greatly improving efficiency and reducing costs.

[0027] 9. Individual pads are generated by stamping and reverse stretching, filling the gap in packaging bracket technology in the current market;

[0028] 10. LED light-emitting components can be built-in or external. They can be installed inside the packaging bracket to encapsulate them into electronic cigarette sensors with internal light emission. LEDs can be flexibly placed to meet the application of electronic cigarettes in more scenarios;

[0029] 11. This circular oil-proof and dust-proof integrated electronic cigarette sensor has a child lock button function and a child lock protection function to prevent children from accidentally inhaling. The sensor can be unlocked by pressing the button 3 times within 2 seconds or blowing 3 times within 2 seconds. The child lock function can be automatically locked or unlocked if there is no AT output for a long time, which meets the needs of market customers for using cigarettes;

[0030] 12. The sensor can realize reverse start; as the name implies, it starts by inhaling from the back. Through the reverse logic selection of ASIC, it is judged that the distance between the diaphragm and the back plate becomes larger, that is, the capacitance value becomes smaller to start. This starting method better solves the impact of smoke oil, water stains, and dust on the diaphragm, and reduces the risk of self-start. Due to the design logic of the sensor, the sensor can be welded on the module by reverse patch method, solving the difficulties of installation, quality and cost of the electret module.

[0031] 13. A layer of non-stick film is added to the protective net to reduce the risk of leakage when gluing the protective net. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the cross section of the structure of the utility model;

[0033] Figure 2 This is a bottom view schematic diagram of the external wiring of the utility model structure;

[0034] Figure 3 This is a top view of the utility model structure with the upper cover opened;

[0035] Figure 4 It is a side view schematic diagram of the structure of the utility model;

[0036] Figure 5 This is a top view schematic diagram of the external wiring of the structure of the utility model;

[0037] Figure 6 This is a top view schematic diagram of the external wiring using a new structure.

[0038] In the figure: 1. Packaging bracket; 2. Upper cover; 3. Lower cover; 4. MEMS sensor; 5. ASIC chip; 6. Protective net; 7. Bonding wire; 8. Thermal conductive encapsulation glue; 9. Built-in LED light; 10. External LED light; 11. High step; 12. Solder pad; 13. Air intake hole; 14. Air intake hole; 15. Notch. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] See also Figure 1-6 , an electronic cigarette sensor with a circular oil-proof and dust-proof integrated structure, comprising a packaging bracket 1, an upper cover 2, a lower cover 3, a protective net 6, a micro-electromechanical sensor 4 and an ASIC chip 5, wherein the packaging bracket 1 is provided with a cavity with an upper opening, a high step 11 is provided on one side of the bottom wall of the cavity, an air guide channel penetrating the high step 11 and the bottom wall of the packaging bracket 1 is provided on the high step 11, and the micro-electromechanical sensor 4 is also provided on the high step 11, the ASIC chip 5 is provided on the bottom wall of the cavity away from the high step 11, and a plurality of groups of pads 12 are embedded in the bottom wall of the cavity, wherein a group of pads 12, the ASIC chip 5 and the micro-electromechanical sensor 4 are connected by connecting wires, an upper cover 2 adapted to the cavity is provided above the packaging bracket 1, the upper cover 2 is provided with an air suction hole 13, a lower cover 3 adapted to the air guide channel is provided below the packaging bracket 1, the lower cover 3 is provided with an air inlet hole 14, and a protective net 6 is provided on the upper cover 2 and the lower cover 3 close to the cavity.

[0041] The overall structure includes an upper cover 2 with a protective net 6, a micro-electromechanical sensor 4, an ASIC chip 5, a packaging bracket 1, and a lower cover 3 with a protective net 6 from top to bottom. The structure is simple, the processing cost is low, and it can be produced automatically. The packaging bracket 1 is mainly made of plastic and copper, and is formed by copper punching, stretching, electroplating, plastic injection molding and other processes. The electronic cigarette sensor is composed of the packaging bracket 1, the upper cover 2 and the lower cover 3 to form a covered accommodating space. The packaging bracket 1 cavity is formed of high and low steps by stamping and stretching processes. The packaging bracket 1 An inverted "Z"-shaped air guide channel is formed by injection molding below the high step 11 on the right side of the cavity. A micro-electromechanical sensor 4 is fixed to the upper end of the air guide channel by colloid. The micro-electromechanical sensor 4 is connected and fixed to the high step 11. A lower cover 3 is fixed to the lower end of the air guide channel by cover glue. The lower cover 3 is provided with air guide holes, and a protective net 6 is attached to the inner surface thereof. An ASIC chip 5 is fixed to the low step on the left side of the cavity of the package bracket 1 by colloid. The ASIC chip 5 is connected and cured by the metal pad 12 at the bottom of the package bracket 1 through the heat-conducting colloid. The surface circuit of the ASIC chip 5 and the inner surface of the package bracket 1 are The pad 12 and the micro-electromechanical sensor 4 circuit are provided with a circuit by welding with bonding wires 7, and then the ASIC chip 5 in the low step and the surrounding bonding wires 7 are filled with thermally conductive encapsulating glue 8, in order to better protect the AISC chip 5 and its bonding wires 7, reduce the influence of light noise, and improve the heat dissipation capacity; the upper cover 2 is fixed to the top of the package bracket 1 cavity with a cover glue, and a notch 15 is made on the top to prevent the burrs caused by injection molding from affecting the mounting of the upper cover 2; the upper cover 2 is provided with an air intake hole structure, and a protective net 6 is affixed to its inner surface, and a LOGO can be embedded according to needs. The built-in LED lamp 9 is mounted in the cavity of the packaging bracket 1, and an external LED lamp 10 can also be mounted. Other functional pads 12 can be flexibly set; the epitaxial pad 12 can be used to weld external wires or connect other modules in a patch type. The wire welding type can be suitable for traditional electret electronic cigarette sensor customers. The patch SMT is welded on other module circuits. The patch welding can reduce the cost of external wiring raw materials and quality risks during welding, improve the adhesion stability of module components, device heat dissipation, and sealability, and solve the difficulty of airtight installation of electret electronic cigarette sensors at the module end.

[0042] In this embodiment, the micro-electromechanical sensor 4 is generated using etching technology. The materials of the generated diaphragm and back plate are both silicon crystals, and the holes on the back plate are all made using nano-level etching technology. The aperture of the back plate is much smaller than that of the electret plate, and it shows great advantages in sensitivity, waterproof and oil-proof, and high temperature resistance. Therefore, it is not easy to deform during the manufacturing process, the diaphragm tension is highly consistent, the service life is long, and the risk of self-starting is reduced.

[0043] In this embodiment, an internal Z-shaped air guide channel is formed in the cavity of the packaging bracket 1 by injection molding to avoid direct alignment between the diaphragm and the air inlet hole, so that the rosin and tin beads splashing during welding of the external leads will not damage the diaphragm.

[0044] In this embodiment, the pads 12 formed by the package bracket 1 through a stamping, stretching and electroplating process perfectly solve the problems of short circuit caused by incomplete metal etching between the pads 12, open circuit caused by burning of the opening metal due to overcurrent, and low solderability due to chemical contamination of the coating;

[0045] In this embodiment, the epitaxial pad 12 can be welded and patched. The pad 12 can be welded with external wires or connected to other modules by patching. The wire welding method is suitable for electret customers. The patch welding method reduces the cost of external wiring and the quality risk during welding. The adhesion with the module is firm and not easy to fall off. The device has good heat dissipation, which solves the difficulty of airtightness in the installation of the electret module.

[0046] In this embodiment, the pad 12 can be flexibly set and used to realize the use of installing multiple multifunctional chips, such as installing an OVP charging protection tube to increase high-voltage resistance, and a charging chip to realize a high-voltage charging electronic cigarette sensor, so as to realize the multifunctional requirements of electronic cigarette customers;

[0047] In this embodiment, the protective net 6 and the cover body are integrally formed, and the protective net 6 and the cover body are mounted in batches by batch mounting, thereby solving the difficulty of efficiency and labor cost of mounting the protective net 6 separately on the electret body;

[0048] In this embodiment, individual pads 12 are generated by punching and reverse stretching, and the reverse stretching pads use a special design method and reverse stretching method to fill the gap in the current market packaging bracket technology;

[0049] In this embodiment, it has a child lock button function, which has a child lock protection function to prevent children from accidentally inhaling. The key can be unlocked by pressing it 3 times within 2 seconds or blowing 3 times within 2 seconds. The child lock function can automatically lock or unlock if there is no AT output for a long time, with multiple directional options;

[0050] In this embodiment, the sensor can realize reverse start; as the name implies, it is started by inhaling from the back, and through the reverse logic selection of ASIC chip 5, it is judged that the distance between the diaphragm and the back plate becomes larger, that is, the capacitance value becomes smaller to start. This starting method better solves the impact of smoke oil, water stains, and dust on the diaphragm, and reduces the risk of self-start. Due to the design logic of the sensor, the sensor can be welded on the module by reverse patch method, solving the difficulties of installation, quality and cost of the electret module end.

[0051] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0052] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0053] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0054] Although the embodiments of the utility model have been shown and described, it is understood that a person of ordinary skill in the art can make various changes, modifications, substitutions and variations to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is limited by the attached claims and their equivalents. The above embodiments only express several preferred implementations of the utility model, and the description is more specific and detailed. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as an exclusion of other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept of this article through the above teachings or the technology or knowledge of the relevant field, and it cannot be understood as a limitation on the scope of the utility model. It should be pointed out that a person of ordinary skill in the art can make several deformations and improvements without departing from the concept of the utility model. The changes and modifications made by the personnel in the field do not depart from the spirit and scope of the utility model, and these belong to the scope of protection of the attached claims of the utility model. Therefore, the scope of protection of the utility model patent shall be subject to the attached claims.

Claims

1. A circular oil-proof and dust-proof integrated electronic cigarette sensor, comprising a packaging bracket (1), an upper cover (2), a lower cover (3), a protective net (6), a micro-electromechanical sensor (4) and an ASIC chip (5), characterized in that: The packaging support (1) is provided with a cavity with an upper opening, a high step (11) is provided on one side of the bottom wall of the cavity, an air guide channel penetrating the high step (11) and the bottom wall of the packaging support (1) is provided on the high step (11), the micro-electromechanical sensor (4) is also provided on the high step (11), the ASIC chip (5) is provided on the bottom wall of the cavity away from the high step (11), a plurality of groups of pads (12) are extended from the bottom wall of the cavity, and individual pads (12) are generated by reverse drawing processing and can be externally mounted. The ED lamp (10) may also have an LED lamp (9) built in, wherein the pad (12), the ASIC chip (5) and the micro-electromechanical sensor (4) are connected via bonding wires, an upper cover (2) adapted to the cavity is arranged above the packaging bracket (1), the upper cover (2) is provided with an air intake hole (14), a lower cover (3) adapted to the air guide channel is arranged below the packaging bracket (1), the lower cover (3) is provided with an air intake hole (15), and a protective net (6) is arranged on the side of the upper cover (2) and the lower cover (3) close to the cavity.

2. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: The packaging bracket is provided with a Z-shaped air guide channel.

3. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: The upper cover (2), the lower cover (3) and the protective net (6) are an integrally formed structure.

4. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: An epitaxial pad (12) is provided at the bottom of the cavity.

5. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: The cavity is also filled with heat-conducting encapsulating glue (8) for encapsulating the bonding wire (7) and the ASIC chip (5).

6. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: Among the plurality of groups of solder pads (12), there are solder pads (12) with anti-stretching structures.

7. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: The cavity epitaxial pad (12) can be formed in plurality.

8. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: A high and low step platform is formed in the cavity of the packaging bracket (1).

9. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: The bottom wall of the ASIC chip (5) is connected to the packaging bracket (1) via a heat-conducting colloid.

10. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: The protective net (6) is attached to the inner sides of the upper cover (2) and the lower cover (3), and a non-stick film layer is added to the protective net.

11. The circular oil-proof and dust-proof integrated electronic cigarette sensor according to claim 1, characterized in that: The pad (12) at the bottom is sunken to form a large-area grounding.

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