Novel circular structure electronic cigarette sensor with bottom internally-rolled star-shaped bonding pad

Abstract

A novel round structure electronic cigarette sensor with a bottom inward-rolling star-shaped bonding pad is characterized in that the round structure comprises a metal frame structure, an injection molding plastic package outer wall, a round outer cover structure and an oil-proof structure, the metal frame is formed by stamping and bending, the metal frame is made of red copper, and the metal frame is formed by stamping and bending through a round mold; as the required internal bonding wire bonding pad and the required external star-shaped bonding pad are formed by bending along an arc in a circular bending mode, the injection molding and plastic packaging outer wall is formed by placing the metal frame into a fixed forming mold and then injecting resin adhesive to enable the metal frame to be semi-wrapped by the outer wall, the whole body is circular, and high and low steps, a Z-shaped air guide channel and a retaining wall are included in the outer wall of the injection molding and plastic packaging outer wall. The circular outer cover structure is provided with an air suction hole with an ox nose structure through stamping; the oil-proof structure is provided with a bottom oil-proof net, an upper cover oil-proof net and an in-cavity oil-proof cotton structure, the appearance of the round structure meets the round appearance of 90% of electronic cigarette customers on the market, and the problem that traditional electrets and MEMS packages on the market are poor in oil-proof performance is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic cigarette sensors, in particular to a novel circular electronic cigarette sensor with an inwardly rolled star-shaped pad at the bottom. Background Art

[0002] Electret structure electronic cigarette sensors occupy the main market of electronic cigarettes at present. MEMS type electronic cigarette sensors are also slowly sprouting and growing. Its structure includes dustproof net, shell, plate, gasket, cavity, diaphragm and copper ring, ASIC, capacitor, circuit board, LED lamp beads. It can be seen from the structure that the structure of electret electronic cigarette sensors on the market is complex. The stacked "hamburger" structure of the air pressure sensor has a low assembly accuracy due to its mechanical assembly structure. The electret packaged in this way faces the problems of large starting negative pressure deviation, poor stability, poor oil resistance, easy self-starting, and inability to achieve large Problems include power output and numerous customer complaints. The main carriers used in electret sensor e-cigarette sensors are all PCB circuit boards. PCB circuit boards have major problems such as excessive debris, internal circuit short circuits and open circuits, and the need for cutting, which seriously affect the performance and product quality of the MEMS sensor. The packaged electret PCB circuit board is connected to the external module by welding external wires. The number of welding external wire pads on the electret PCB circuit board is limited. Currently, e-cigarettes with electret structures generally have a single ASIC functional chip inside, which cannot achieve the multi-function output and high power output required by existing customers.

[0003] Even the existing MEMS packaging has many difficulties to be solved. For example, the bottom air inlet has no oil-proof net, which makes it easy for tin beads or rosin to splash into the bottom diaphragm during patching, posing a very serious hidden danger to the micro-electromechanical sensor. In the current MEMS-packaged e-cigarette sensor, many debris and microparticles are easily adhered to the diaphragm during the manufacturing process and contaminate the diaphragm. The rectangular shape structure does not meet the upgrade requirements of electret users. The expensive cost of the PCBA circuit board and the large-area iron-nickel-plated shell increases the processing cost of the PCBA solution board. With the growing demand in the e-cigarette market, the demand for e-cigarette sensors is also gradually increasing. The requirements for the structure and function of e-cigarette sensors are more diversified and innovative, which brings more opportunities and challenges to the packaging of e-cigarette sensors.

[0004] The above structure has the following disadvantages:

[0005] 1. ASICs packaged in SOT and DFN have poor heat dissipation capabilities, low output power, and poor user experience.

[0006] 2. The PCB circuit board short circuit causes functional failure. Incomplete etching between the lines causes copper to be connected together, resulting in a PCB short circuit or a line disconnection causing an open circuit.

[0007] 3. Materials such as solder mask green oil on PCB circuit boards are easy to fall off or have residual debris, resulting in the risk of empty soldering or poor soldering during pad soldering operations. The solder mask green oil has poor coverage accuracy and may cover the pad, resulting in solder voids.

[0008] 4. There is no protective net on the air inlet of the electret, and the air hole is directly aimed at the diaphragm. When welding the outer wire, rosin and tin beads are easy to splash onto the diaphragm, damaging the diaphragm and causing diaphragm failure.

[0009] 5. The numerous electret components, complex structure, low precision and other assembly problems make manual processing and repair difficult, reducing production efficiency and product quality.

[0010] 6. The electret can only be welded with external wires and is not compatible with SMT patch operations. The folding back of the external wires during installation affects the air tightness of the electronic cigarette, resulting in poor air tightness stability. Too much exposed copper wire during welding is prone to short circuits, resulting in high quality risks and increasing the cost of the external wires.

[0011] 7. Currently, the stamped lead frames on the market are all rectangular, and the pads are generated by right-angle bending. In addition, the gap between the bent pads and the resin glue is large, which affects the stability of the starting negative pressure.

[0012] 8. The number of electret pads is small, which cannot meet the multi-function output conditions required by current customers and has a single function.

[0013] 9. Each country has relevant laws prohibiting children from using e-cigarettes. Traditional electrets do not have child lock functions and reverse start logic.

[0014] 10. Electronic cigarettes have high requirements for PCB circuit board cutting, which makes existing electronic cigarette cutting difficult and brings many potential risks. For example, debris contamination of the diaphragm, water stains contamination of the diaphragm and other problems seriously affect the service life of the diaphragm.

[0015] 11. Existing MEMS packaged electronic cigarette sensors do not have built-in light-emitting LEDs and can only have a single functional chip, which has become the main obstacle to their development.

[0016] 12. For existing MEMS packaged electronic cigarette sensors, the bonded micro-electromechanical sensors may be damaged by other processes. Once smoke enters the hole, there is no protective structure inside the cavity, and the smoke can directly contaminate the micro-electromechanical sensors, causing them to fail. Utility Model Content

[0017] (1) Technical problems solved

[0018] In order to solve the above problems, the present invention provides a novel circular electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom.

[0019] (2) Technical solution

[0020] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom, the circular structure comprising a metal frame structure, an injection-molded outer wall, an upper cover structure and an oil-proof structure, the metal frame being made by stamping and bending, and its material is red copper, which is stamped and bent by a circular mold, and the internal welding wire pad, the external star-shaped pad, the high step and the low step are formed along the arc, the injection-molded outer wall is placed in the metal frame by a fixed molding mold, and a gap is filled between the fixed molding mold and the metal frame. The frame is filled with resin glue to form an outer wall that half-wraps the metal frame. The frame is circular as a whole. The frame is provided with a cavity with an upper opening. A high step is provided on one side of the bottom wall of the cavity. The high step is provided with an air guide channel that passes through the high step and the bottom of the frame. The high step is also provided with the micro-electromechanical sensor. A low step is provided in the cavity away from the high step. The ASIC chip is provided on the low step. The frame is also provided with a partition wall. The top of the frame is adapted to be provided with an upper cover structure to provide an upper cover dam. The upper cover dam is provided with a notch, and the notch is provided with an inclined surface.

[0021] The upper cover structure is punched with an air intake hole with a bull nose structure; the upper cover oil-proof net is arranged on the upper cover structure, the bottom oil-proof net is arranged under the frame at the outlet of the Z-shaped air guide channel, the oil-proof cotton in the cavity is arranged on the partition wall, and the height of the upper cover dam is higher than the height of the waterproof net;

[0022] The micro-electromechanical sensor is solidified on the high step by colloid, and the ASIC chip is solidified on the low step by colloid. The micro-electromechanical sensor and the ASIC chip are electrically connected through bonding wires, and the ASIC chip is filled with protective colloid.

[0023] The utility model has the following improvements: the star-shaped pad formed by stamping and the middle large pad are kept in the same plane; the star-shaped pad is wrapped inwardly at the bottom of the cavity after injection molding, and its height is lower than that of the resin glue.

[0024] The utility model has the improvement that the bull nose upper cover formed by stamping is arranged in an array on the whole plate.

[0025] The utility model is improved in that the air guide channel is Z-shaped.

[0026] The utility model has the following improvements: the partition wall and the oil-proof cotton in the cavity form an oil-proof structural layer; the partition wall is in a semi-open door shape structure; and the height of the partition wall is adapted to the height of the upper cover step.

[0027] The improvement of the present invention is that the oil-proof structure is integrally mounted and formed with the main metal frame, and the metal frame presents a multi-group array structure.

[0028] The utility model is improved in that the oil-proof and waterproof protective layer structure includes five layers of oil-proof and waterproof protective layers, namely, a bottom waterproof net, a Z-shaped air guide channel, oil-proof cotton, a bull nose structure, and an upper cover waterproof net;

[0029] The utility model is improved in that the external star-shaped pad can be connected to the external solution board through SMT patch or welding external wire.

[0030] The improvement of the utility model is that multiple multifunctional chips can be mounted inside the circular stamped multiple pad structures;

[0031] The improvement of the utility model is that the mounted LED lamp can be mounted on both sides and can emit light inside or outside the cavity;

[0032] The utility model has the following improvements: the circular electronic cigarette sensor has a child lock function;

[0033] The utility model is improved in that the circular electronic cigarette sensor can be started in both forward and reverse directions.

[0034] (3) Beneficial effects

[0035] Compared with the existing technology, the present invention provides a new type of circular electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom, which has the following beneficial effects:

[0036] 1. This circular-structured electronic cigarette sensor uses a MEMS micro-electromechanical system packaging process. In this process, the bottom of the ASIC is in full contact with the copper block at the bottom of the package bracket through a thermally conductive colloid. The AISC chip and its bonding wires are filled with thermally conductive encapsulating glue to ensure the stability of the connection and heat dissipation.

[0037] 2. The one-piece array structure of the upper cover, oil-proof cotton, and waterproof mesh is mounted on the entire board. Compared with the electret mesh mounting process, the entire process has fewer steps and quality control nodes, which reduces the quality risk of the sensor production process, reduces the risk of adverse effects caused by the process links, and improves production efficiency.

[0038] 3. A partition wall is generated in the circular cavity structure. The partition wall avoids the risk of residual glue contamination caused by ASIC filling and encapsulation and the risk of damage to the MEMS sensor due to movement of process components, ensuring the high performance and high quality output of the MEMS sensor.

[0039] 4. Since the solder pad is rolled inward and lower than the plastic cavity, a sealed airway environment is formed around the air inlet hole at the bottom of the electronic cigarette sensor after the patch, ensuring the stable output of the electronic cigarette sensor and the consistency of the starting negative pressure.

[0040] 5. The generation of a barrier wall in the circular cavity structure helps to isolate the risk of the oil-proof cotton damaging the micro-electromechanical sensor. It also helps the oil-proof cotton and the barrier wall to form a sealed oil-proof airway, thereby improving the overall oil-proof performance of the electronic cigarette sensor.

[0041] 6. The partition wall with a semi-open door structure is convenient for connecting the electrical circuits of the micro-electromechanical sensor and forming an internal airway for smoking. The raw material and production and processing costs are lower than those of the existing electret PCB circuit board.

[0042] 7. The external star-shaped pad can be welded and patched. The pad can be used to weld external wires or connect to the solution board through patching. Welding external wires is suitable for electret customers. Patch welding reduces the cost of external wiring, has a firm bond with the solution board, is not easy to fall off, and has good heat dissipation, which solves the difficulty of airtight installation of the electret solution board.

[0043] 8. The soldering pads can be flexibly set up and used to realize the installation of multiple multifunctional chips, such as installing an OVP charging protection tube to increase high-voltage resistance, and installing a charging chip to realize a high-voltage charging electronic cigarette sensor, thereby meeting the multifunctional requirements of electronic cigarette customers.

[0044] 9. An inverted Z-shaped air guide hole is provided in the packaging bracket to prevent the air intake duct and the diaphragm from being directly aligned, preventing oil, water and dust passing through the protective net from directly damaging the diaphragm, and preventing tin beads and rosin from splashing onto the diaphragm when welding external wires on the air intake surface, causing it to fail.

[0045] 10. LED light-emitting components can be built-in or external. They can be installed inside the packaging bracket and packaged into an internally luminous electronic cigarette sensor. The LED can be flexibly placed to meet the needs of more electronic cigarette applications.

[0046] 11. Since the ASIC chip opens the child lock by judging the conduction threshold and time threshold and gate logic, the button action causes the ASIC chip control group to form an open circuit and a broken circuit. The conduction threshold set by the ASIC chip design is the number of times the circuit is formed. When the number of times the circuit is formed within the specified time reaches the set requirement, the child lock is opened. This setting is highly secure and will not cause children to trigger the start of the e-cigarette due to accidental touch or inhalation, which more effectively and effectively solves the problems of children's accidental inhalation and misoperation.

[0047] 12. The sensor can achieve reverse start; through ASIC reverse logic selection, it determines that the distance between the diaphragm and the back plate increases, that is, the capacitance value decreases to start. This starting method better solves the impact of smoke oil, water stains, and dust on the diaphragm, reduces the risk of self-start, and solves the difficulty of electronic cigarette diaphragms being contaminated by smoke oil.

[0048] 13. A barrier wall is provided to optimize the pollution of the MEMS sensor by the traditional sealant process and fix the position of the oil-proof cotton, reduce the risk of contamination of the MEMS sensor chip in other processes, and improve the service life and user experience of the electronic cigarette sensor of this packaging structure.

[0049] 14. The structure adopts MEMS packaging structure. The entire electronic cigarette sensor includes an oil-proof bull nose structure, a waterproof net on the upper cover, a waterproof net for the air inlet, oil-proof cotton, and a Z-shaped air inlet airway. The electronic cigarette sensor with five layers of oil-proof and waterproof structure is far superior to the oil resistance and anti-backblow properties of electronic cigarette sensors on the market. It better solves the pain point of poor oil resistance of the current industry's electronic cigarette sensors and improves the service life of the electronic cigarette sensors.

[0050] 15. The stress generated by the stamping process of the metal frame is much lower than the stress of the PCB circuit board used in the traditional electret, which solves the impact of stress on the MEMS sensor, ensures the original state of the MEMS sensor, and ensures the consistency of the negative pressure when the electronic cigarette sensor is started.

[0051] 16. The height of the injection-molded dam is slightly higher than the height of the waterproof net, which is more stable and accurate in the electronic cigarette sensor testing process, ensuring the consistency of the starting negative pressure of shipments and reducing the misjudgment caused by the test and leading to quality problems on the application end.

[0052] 17. The notch of the injection molding cavity dam is provided with an inclined surface structure, which makes it easier to separate the upper cover with pre-cut structure from the fixed frame.

[0053] 18. The circular structure of the e-cigarette uses a snap to secure it to the frame. Removal requires only a simple pressure, resulting in a simple and efficient peeling process that generates no debris and reduces contamination of the diaphragm. The circular stamped e-cigarette sensor lead frame structure satisfies the circular appearance requirements of 90% of e-cigarette users on the market, eliminating the need to modify the corresponding microphone housing airway mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the structural cross section of the utility model;

[0055] Figure 2 This is a schematic top view of the structure of the present utility model;

[0056] Figure 3 This is a bottom view schematic diagram of the structure of the present utility model;

[0057] Figure 4 The structure of the utility model is viewed from above Figure 2 ;

[0058] Figure 5 This is a structural diagram of the metal frame of the present utility model;

[0059] Figure 6 This is a structural diagram of the entire panel frame of the present invention.

[0060] In the figure: 1. Cavity; 2. Upper cover structure; 3. MEMS sensor; 4. ASIC chip; 5. High step; 6. Air intake channel; 7. Partition wall; 8. Sealant; 9. Upper cover oil-proof net; 10. Air intake hole; 11. Oil-proof cotton; 12. Star-shaped pad; 13. Upper cover dam; 14. Notch. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] Reference Figures 1-6 A new type of circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom. The circular structure includes a metal frame structure, an injection-molded outer wall, an upper cover structure 2 and an oil-proof structure. The metal frame is made of red copper and is stamped and bent with a circular mold. The circular bending is formed along the arc to form the required internal welding wire pads, external star-shaped pads 12, high steps 5 and low steps. The injection-molded outer wall is placed in the metal frame by fixing the molding mold, and then injecting resin glue to form an outer wall that half wraps the metal frame. The whole is The present invention is circular, and the frame is provided with a cavity 1 with an upper opening, a high step 5 is provided on one side of the bottom wall of the cavity 1, and a Z-shaped air guide channel is provided on the high step 5 that passes through the high step 5 and the bottom of the frame. The micro-electromechanical sensor 3 is also provided on the high step 5. The cavity 1 is away from the high step 5. There is a low step, and the ASIC chip 4 is provided on the low step. The frame is also provided with a partition wall 7. The top of the frame is adapted to the upper cover structure 2 to provide an upper cover dam 13. The upper cover dam 13 is provided with a notch 14, and the notch 14 is provided with an inclined surface.

[0063] An air intake hole 10 with a bull nose structure is punched out on the upper cover structure 2; the oil-proof structure includes a bottom oil-proof net, an upper cover oil-proof net 9 and an intra-cavity oil-proof cotton 11. The upper cover oil-proof net 9 is arranged on the upper cover structure 2, the bottom oil-proof net is arranged under the frame at the outlet of the Z-shaped air guide channel, and the intra-cavity oil-proof cotton 11 is arranged on the retaining wall, and its height is higher than the height of the waterproof net.

[0064] The MEMS sensor 3 is solidified on the high step 5 by colloid, and the ASIC chip 4 is solidified on the low step by colloid. The MEMS sensor 3 and the ASIC chip 4 are electrically connected via bonding wires, and the ASIC chip 4 is filled with protective colloid.

[0065] The structure adopts the MEMS micro-electromechanical system packaging process. In this process, the bottom of the ASIC is in full contact with the copper block at the bottom of the packaging bracket through thermal conductive glue. The AISC chip and its bonding wires are filled with thermal conductive encapsulation glue to ensure the stability of its connection and heat dissipation.

[0066] The stamping process creates a height difference between the high and low steps 5, with the low step sinking to form a large ground surface. The integrated array structure of the top cover, oil-proof cotton 11, and waterproof mesh allows for whole-board mounting. Compared to the electret mesh mounting process, the entire process has fewer steps and fewer quality control nodes, reducing quality risks in the sensor production process and the risk of defects caused by process links, thereby improving production efficiency.

[0067] The stamped star-shaped pad 12 and the lower step of the central large pad are aligned. After injection molding, the star-shaped pad 12 is wrapped inwardly and placed below the resin adhesive at the bottom of the cavity 1. Because the pad is rolled inwardly and below the plastic cavity 1, a sealed airway is formed around the air inlet at the bottom of the electronic cigarette sensor after placement, ensuring stable output and consistent negative pressure at startup.

[0068] The number of internal wire bonding pads formed by the stamping is large, and can be adapted to various line connection methods.

[0069] The bull nose upper cover formed by stamping is arranged in an array on the entire plate.

[0070] The air guide channel is in a Z-shape, and the Z-shaped air guide channel prevents the micro-electromechanical sensor 3 and the air inlet from being directly aligned.

[0071] An inverted Z-shaped air guide hole is provided in the packaging bracket to prevent the air intake duct and the diaphragm from being directly aligned, thereby preventing oil, water and dust passing through the protective net from directly damaging the diaphragm, and preventing tin beads from splashing and rosin from seeping into the diaphragm during welding on the air intake surface and damaging the diaphragm.

[0072] The injection molding cavity 1 is provided with a barrier wall 7, which forms an oil-proof layer with oil-proof cotton 11 in the cavity. The barrier wall 7 is in the shape of a semi-open door, and its height matches the height of the upper cover step. The internal oil-proof cotton 11 is attached to the interior of the cavity 1 to filter smoke entering the cavity 1.

[0073] The barrier wall 7 generated in the circular cavity 1 structure helps to isolate the risk of the oil-proof cotton 11 damaging the micro-electromechanical sensor 3, and is also conducive to the oil-proof cotton 11 and the barrier wall 7 forming a sealed oil-proof airway, thereby improving the overall oil-proof performance of the electronic cigarette sensor.

[0074] The partition wall 7 of the semi-open door structure is convenient for connecting the electrical circuit of the micro-electromechanical sensor 3 and for forming an internal airway for smoking. The raw material and production and processing costs are lower than those of the existing electret PCB circuit board.

[0075] The oil-proof structure is integrally mounted on the main metal frame, and the metal frame presents a multi-group array structure.

[0076] The external star-shaped pad 12 can be connected to an external test module through SMT patches or welding external wires. The multiple groups of pads stamped with a circular structure can be mounted with multiple multifunctional chips. The mounted LED lamp can emit light on both sides, and can emit light inside the cavity 1 or outside the cavity 1.

[0077] LED light-emitting components can be built-in or external. They can be installed inside the packaging bracket and packaged into an internally luminous electronic cigarette sensor. The LED can be flexibly placed to meet the needs of more electronic cigarette applications.

[0078] The pads can be flexibly set up and used to realize the installation of 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, thereby meeting the multifunctional requirements of electronic cigarette customers.

[0079] The external star-shaped pad 12 can be welded and patched. The pad can be used to weld external wires or connect to the solution board through patch method. The wire welding method is suitable for electret customers. The patch welding method reduces the cost of external wiring, has a firm adhesion to the module, is not easy to fall off, and has good heat dissipation of the device, which solves the difficulty of airtight installation of the electret module.

[0080] The circular electronic cigarette sensor has a child lock function.

[0081] The circular electronic cigarette sensor can be started in both forward and reverse directions.

[0082] Since the ASIC chip 4 judges the opening of the child lock by judging the conduction threshold and the time threshold and the gate logic, the key action causes the ASIC chip 4 control group to form an open circuit and a disconnected circuit. After the conduction threshold set by the ASIC chip 4, that is, the number of times the conduction forms a loop, the child lock is opened when the number of times the loop is formed within the specified time reaches the set requirement. This setting is highly safe and will not cause children to trigger the start of the electronic cigarette due to accidental touch or inhalation, which more effectively and effectively solves the problems of children's accidental inhalation and misoperation.

[0083] The sensor can be reverse-started; through ASIC reverse logic selection, it determines that the distance between the diaphragm and the back plate increases, that is, the capacitance value decreases 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 to the module through a reverse patch method, solving the difficulties of installation, quality, and cost at the electret module end.

[0084] The barrier wall 7 is provided to optimize the pollution of the traditional sealant 8 to the MEMS sensor 3 and fix the oil-proof cotton 11 position, thereby reducing the pollution in the cavity of the MEMS sensor 3 chip and improving the service life and user experience of the electronic cigarette sensor of the packaging structure;

[0085] The structure adopts MEMS packaging structure. The entire electronic cigarette sensor includes an oil-proof bull nose structure, a waterproof net on the upper cover, a waterproof net for the air inlet, oil-proof cotton 11, and a Z-shaped air inlet airway. The electronic cigarette sensor with five layers of oil-proof and waterproof structure is far superior to the oil resistance and anti-backblowing properties of electronic cigarette sensors on the market. It better solves the pain point of poor oil resistance of the current industry's electronic cigarette sensors and improves the service life of the electronic cigarette sensors.

[0086] The stress generated by the stamping process of the metal frame is much lower than the stress of the PCB circuit board used in the traditional electret, which solves the impact of stress on the MEMS sensor 3, ensures the original state of the MEMS sensor 3, and ensures the consistency of the negative pressure when the electronic cigarette sensor is started.

[0087] The height of the injection-molded dam is slightly higher than the height of the waterproof net, which makes it more stable and accurate in the e-cigarette sensor testing process, reducing misjudgments caused by testing and leading to quality problems on the application end.

[0088] The dam gap 14 of the injection molding cavity 1 is provided with an inclined surface structure, which facilitates the upper cover with the pre-cut structure to be separated from the fixed frame more easily.

[0089] The circular-structured e-cigarette uses a buckle to fix it on the frame. It can be peeled off by simply pressing with external force. The peeling method is simple and efficient, does not generate related debris, and reduces pollution to the diaphragm.

[0090] The circular stamping method of the electronic cigarette sensor lead frame structure meets the circular appearance requirements of 90% of the electronic cigarette customers on the market, and the electronic cigarette shape does not need to change the corresponding microphone airway mold.

[0091] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, 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 this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0092] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0093] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0094] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. The above embodiments only express several preferred embodiments of the present invention, and their descriptions are relatively specific and detailed. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Instead, it can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention through the above teachings or the technology or knowledge in the relevant field. It should not be construed as limiting the scope of the present invention. It should be pointed out that it is possible for those skilled in the art to make various variations and improvements without departing from the spirit and scope of the present invention. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention and are within the scope of protection of the appended claims. Therefore, the scope of protection of the present utility model patent shall be based on the appended claims.

Claims

1. A new type of circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom, characterized in that: The circular structure includes a metal frame structure, an injection molded outer wall (1), an upper cover (2) and an oil-proof structure. The metal frame is made of red copper by stamping and bending. It is stamped and bent with a circular mold to form an internal welding pad, an external star-shaped pad (12), a high step (5) and a low step along the arc. The injection molded outer wall is placed in the metal frame through a fixed molding mold. Resin glue is filled between the fixed molding mold and the metal frame to form an outer wall that half wraps the metal frame. The whole is circular. The frame is provided with a cavity with an upper opening. A high step (5) is provided on one side of the bottom wall of the cavity, and a Z-shaped air guide channel is provided on the high step (5) and passes through the high step (5) and the bottom of the frame. A micro-electromechanical sensor (3) is also provided on the high step (5). A low step is provided in the cavity away from the high step (5), and an ASIC chip (4) is provided on the low step. A partition wall (7) is also provided on the frame. The top of the frame is adapted to be equipped with an upper cover (2) and an upper cover dam (13). A notch (14) is provided on the upper cover dam (13), and an inclined surface is provided on the notch (14). The upper cover (2) is provided with an air intake hole (10) having a bull nose structure by punching; the upper cover oil-proof net (9) is provided on the upper cover (2); the bottom oil-proof net is provided under the frame at the outlet of the Z-shaped air guide channel; the oil-proof cotton (11) in the cavity is attached to the upper cover (2) and the partition wall to form an oil-proof channel; the upper cover dam (13) is higher than the height of the waterproof net; The micro-electromechanical sensor (3) is solidified at the high step (5) through colloid, and the ASIC chip (4) is solidified at the low step through colloid. The micro-electromechanical sensor (3) and the ASIC chip (4) are electrically connected through bonding wires, and the ASIC chip (4) is filled with protective colloid.

2. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 1 is characterized by: The star-shaped pad (12) formed by stamping and the middle large pad are kept in the same plane. The star-shaped pad (12) is rolled inwardly and wrapped around the bottom of the cavity after injection molding, and its height is lower than that of the resin glue.

3. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 2, characterized in that: The bull nose cover formed by stamping is arranged in an array on the entire plate.

4. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 3 is characterized by: The Z-shaped air guide channel is Z-shaped.

5. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 4, characterized in that: The partition wall (7) and the oil-proof cotton (11) in the cavity form an oil-proof structural layer. The partition wall (7) is a semi-open door-shaped structure, and its height is adapted to the height of the upper cover step.

6. The novel circular electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 5, characterized in that: The oil-proof structure is integrally mounted on the main metal frame, and the metal frame presents a multi-group array structure.

7. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 6, characterized in that: The oil-proof structural layer comprises five oil-proof and waterproof protective layers, namely, a bottom waterproof net, a Z-shaped air guide channel, oil-proof cotton (11), a bull nose structure, and an upper cover waterproof net; 8. The novel circular electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 7, characterized in that: The external star-shaped pad (12) can be connected to an external solution board through an SMT patch or welding external wires.

9. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 8, characterized in that: Multiple multifunctional chips can be mounted inside the circular stamped multiple pad structures.

10. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 9, characterized in that: The SMD LED lamp can be mounted on both sides and can emit light inside or outside the cavity.

11. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 10, characterized in that: The circular electronic cigarette sensor has a child lock function.

12. The novel circular structure electronic cigarette sensor with an inward-rolled star-shaped pad at the bottom according to claim 11, characterized in that: The circular electronic cigarette sensor can be started in both forward and reverse directions.

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