Airflow switch structure of electronic cigarette

Abstract

The utility model relates to the technical field of electronic cigarettes, in particular to an airflow switch structure of an electronic cigarette, an air inlet communicated with an inner cavity of a shell is formed in sealing silica gel and a PCB, an air inlet switch is used for opening or closing the air inlet, and the air inlet switch is arranged on the sealing silica gel in a sliding mode. An airflow detection channel is formed between the sealing silica gel and the PCB, an airflow channel communicated with the airflow detection channel is formed in the sealing silica gel in a penetrating mode, and a first air channel and a second air channel are formed in the surface, facing the sealing silica gel, of the air inlet switch; when the electronic cigarette works, the air inlet switch opens the air inlet, and the airflow channel communicates with outside air through the first air channel; when the air inlet is closed by the air inlet switch, the airflow channel is communicated with the inner cavity of the shell through the second air channel, and then the airflow detection channel is communicated with the inner cavity of the shell through the airflow channel, so that no air pressure difference is generated between the inner cavity of the shell and the airflow detection channel; therefore, the electronic cigarette is prevented from being accidentally started by the airflow sensor due to unbalanced air pressure.

Description

Technical Field

[0001] This application relates to the field of electronic cigarette technology, and in particular to an airflow switch structure for an electronic cigarette. Background Technology

[0002] Electronic cigarettes, also known as virtual cigarettes or electronic atomizers, are primarily used for smoking cessation and as a substitute for traditional cigarettes. Currently, e-cigarettes are becoming increasingly popular, making them, like mobile phones, an essential daily item for some users. E-cigarettes work by heating and atomizing e-liquid with a tobacco flavor using a heating circuit to simulate the inhalation of traditional cigarettes. Existing e-cigarette switches come in two types: push-button switches and airflow switches. Airflow switches work by using an airflow sensor to detect changes in air pressure when the user inhales, thus activating the e-cigarette. Typically, an inhalation airflow channel and a detection airflow channel are located within the e-cigarette. The airflow sensor is located in the detection airflow channel. When not in use, the e-cigarette's air intake is closed, and the inhalation airflow channel and detection airflow channel are not connected. To prevent accidental activation, a sealing film is used to create a sealed cavity in the detection airflow channel. However, when the e-cigarette is shaken or prolonged use causes the seal to fail, changes in air pressure within the detection airflow channel can trigger the airflow sensor, leading to accidental activation of the e-cigarette. Utility Model Content

[0003] To address one of the aforementioned technical problems, this application provides an airflow switch structure for an electronic cigarette, including a housing, a cartridge assembly disposed within the housing, a sealing silicone pad and an air inlet switch disposed at the bottom of the housing, a PCB board disposed between the cartridge assembly and the sealing silicone pad, an air inlet port communicating with the internal cavity of the housing being formed between the sealing silicone pad and the PCB board, the air inlet switch being used to open or close the air inlet port, an airflow detection channel being formed between the sealing silicone pad and the PCB board, the sealing silicone pad having an airflow channel communicating with the airflow detection channel, and the air inlet switch having a first air passage and a second air passage on its surface facing the sealing silicone pad; when the air inlet switch opens the air inlet port, the airflow channel communicates with outside air through the first air passage; when the air inlet switch closes the air inlet port, the airflow channel communicates with the internal cavity of the housing through the second air passage.

[0004] Preferably, an installation groove is formed on the surface of the sealing silicone, the air intake switch is slidably disposed in the installation groove, and the air intake port and the airflow channel are formed in the installation groove.

[0005] Preferably, the first air passage is located on the side of the surface of the air intake switch, and an air groove is provided in the mounting groove on the side near the first air passage. When the air intake switch opens the air intake, the airflow channel communicates with the outside air through the air groove and the first air passage.

[0006] Preferably, a connecting groove is formed in the mounting groove, and the connecting groove extends from the air inlet to the airflow channel.

[0007] Preferably, the cartridge assembly includes a battery disposed above the PCB board, an oil cup disposed above the battery, and a motherboard disposed on one side of the battery.

[0008] Preferably, the oil cup is provided with oil storage cotton and atomizing core, the atomizing core is electrically connected to the main board, and a silicone oil cup top is provided at the end of the oil cup.

[0009] Compared with the prior art, the beneficial effects of this application are as follows: This application provides an air inlet connecting the internal cavity of the housing by opening an air inlet in the sealing silicone and the PCB board. An air inlet switch is used to open or close the air inlet, and the air inlet switch is slidably mounted on the sealing silicone. An airflow detection channel is formed between the sealing silicone and the PCB board, and the sealing silicone passes through the airflow channel that connects to the airflow detection channel. The surface of the air inlet switch facing the sealing silicone has a first air passage and a second air passage. When the electronic cigarette is working, the air inlet switch opens the air inlet, and the airflow channel connects to the outside air through the first air passage. When the air inlet switch closes the air inlet, the airflow channel connects to the internal cavity of the housing through the second air passage, and then the airflow detection channel connects to the internal cavity of the housing through the airflow channel. This prevents a pressure difference from being generated between the internal cavity of the housing and the airflow detection channel, thereby preventing the electronic cigarette from being accidentally activated by the airflow sensor due to pressure imbalance. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram showing the disassembled airflow switch structure of an electronic cigarette according to an embodiment of this application;

[0012] Figure 2 This is a schematic diagram of the sealing silicone and air intake switch in an embodiment of this application;

[0013] Figure 3 This is a structural diagram of the sealing silicone and air intake switch according to an embodiment of this application;

[0014] Figure 4 This is a cross-sectional view of an electronic cigarette according to an embodiment of this application;

[0015] Figure 5 This is a schematic diagram showing the closed state of the electronic cigarette air intake switch in an embodiment of this application;

[0016] Figure 6 Examples of this application Figure 5 Enlarged view of part A;

[0017] Figure 7 This is a schematic diagram showing the open state of the electronic cigarette air intake switch in an embodiment of this application;

[0018] Figure 8 Examples of this application Figure 7 Enlarged view of part B. Detailed Implementation

[0019] The following drawings disclose several embodiments of this application. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this application. That is, in some embodiments of this application, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0020] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0021] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit this application. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0022] To further understand the content, features, and effects of this application, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0023] To address the aforementioned technical problems, this embodiment provides an airflow switch structure for an electronic cigarette, such as... Figures 1-3 As shown, the device includes a housing 10, a cartridge assembly 20 disposed within the housing 10, a sealing silicone 40 disposed at the bottom of the housing 10, and an air intake switch 50. A PCB board 30 is disposed between the cartridge assembly 20 and the sealing silicone 40. The sealing silicone 40 and the PCB board 30 have an air intake port 41 that connects to the internal cavity of the housing 10. The air intake switch 50 is used to open or close the air intake port 41. The air intake switch 50 is slidably disposed on the sealing silicone 40, and the air intake switch 50 has a vent 51. When the vent 51 of the air intake switch 50 is connected to the air intake port 41, it indicates that the air intake port 41 is open. An airflow detection channel 43 is formed between the sealing silicone 40 and the PCB board 30. An airflow sensor is installed in the airflow detection channel 43. The sealing silicone 40 passes through an airflow channel 42 that connects to the airflow detection channel 43. The air intake switch 50 has a first air passage 52 and a second air passage 53 on its surface facing the sealing silicone 40. When the electronic cigarette is working, the air intake switch 50 opens the air intake port 41, and the airflow channel 42 connects to the outside air through the first air passage 52. When the air intake switch 50 closes the air intake port 41, the airflow channel 42 connects to the internal cavity of the housing 10 through the second air passage 53. Consequently, the airflow detection channel 43 connects to the internal cavity of the housing 10 through the airflow channel 42, so that no air pressure difference is generated between the internal cavity of the housing 10 and the airflow detection channel 43, thereby preventing the airflow sensor from accidentally activating the electronic cigarette due to air pressure imbalance.

[0024] Specifically, such as Figure 3 As shown, a mounting groove 46 is formed on the surface of the sealing silicone 40. The air intake switch 50 is slidably disposed in the mounting groove 46, and the air intake port 41 and the airflow channel 42 are formed in the mounting groove 46. The air intake switch 50 is embedded in the bottom of the housing 10, and the movement of the air intake switch 50 is limited by the housing 10. Figures 7-8 As shown, when the air inlet switch 50 is moved so that the air vent 51 is aligned with the air inlet 41, it indicates that the outside air is connected to the internal cavity of the housing 10. At this time, the airflow channel 42 is connected to the outside air through the first air passage 52, which in turn connects the airflow detection channel 43 with the outside air. When the user inhales, the airflow sensor in the airflow detection channel 43 detects the change in airflow, thereby driving the cartridge assembly 20 to work through the PCB board 30 to generate smoke for the user to inhale.

[0025] like Figures 5-6As shown, when the air intake switch 50 is moved, causing the air vent 51 to be misaligned with the air intake 41, the air intake switch 50 closes the air intake 41, and the first air passage 52 no longer connects the airflow detection channel 43 to the outside. At this time, the airflow passage 42 connects to the internal cavity of the housing 10 through the second air passage 53, and the airflow detection channel 43 connects to the internal cavity of the housing 10 through the airflow passage 42. This prevents a pressure difference between the internal cavity of the housing 10 and the airflow detection channel 43, thus achieving air pressure balance and preventing the sensor from being accidentally triggered due to pressure imbalance in the internal cavity of the housing 10.

[0026] Furthermore, such as Figure 3 As shown, the first air passage 52 is located on the side of the surface of the air intake switch 50. An air groove 44 is provided in the mounting groove 46 on the side near the first air passage 52. When the air intake switch 50 opens the air inlet 41, the airflow channel 42 connects to the outside air through the air groove 44 and the first air passage 52. When the air intake switch 50 closes the air inlet 41, the air intake switch 50 isolates the air groove 44 from the airflow channel 42, so that when the electronic cigarette is not working, the airflow detection channel 43 is isolated from the outside air.

[0027] Furthermore, a connecting groove 45 is formed in the mounting groove 46, extending from the air inlet 41 to the airflow channel 42. For example... Figure 8 As shown, when the air intake switch 50 opens the air intake port 41, the air intake switch 50 isolates the airflow channel 42 from the connecting groove 45, thus isolating the airflow channel 42 and the airflow detection channel 43 from the air intake port 41. At this time, the airflow channel 42 is connected to the outside air through the air groove 44 and the first air passage 52; Figure 6 As shown, when the air intake switch 50 closes the air intake port 41, the airflow channel 42 is connected to the connecting groove 45 through the second air passage 53, thereby connecting the airflow channel 42 and the airflow detection channel 43 to the air intake port 41, and connecting the airflow detection channel 43 to the internal cavity of the housing 10. When the electronic cigarette is not working, the airflow detection channel 43 is connected to the internal cavity of the housing 10 and maintains air pressure balance, so that the air pressure of the airflow detection channel 43 will not change when the electronic cigarette is in the off state, avoiding the airflow sensor from triggering and causing the electronic cigarette to start unexpectedly. The airflow sensor can be set on the PCB board 30 and located in the airflow detection channel 43, and the airflow sensor is electrically connected to the PCB board 30.

[0028] Furthermore, such as Figure 4As shown, the cartridge assembly 20 includes a battery 21 disposed above a PCB board 30, an oil cup 23 disposed above the battery 21, and a main board 22 disposed on one side of the battery 21. The oil cup 23 contains an oil-collecting cotton and an atomizing coil. The atomizing coil and the battery 21 are electrically connected to the main board 22. A silicone sealant 24 is disposed at the end of the oil cup 23, which acts as a seal to prevent e-liquid leakage. Furthermore, the main board 22 is electrically connected to the PCB board 30, so that when the airflow sensor is triggered, a signal can be sent from the PCB board 30 to the main board 22, which then drives the atomizing coil to produce vapor. The structure and working principle of the cartridge assembly 20 are existing technologies and will not be described in detail here.

[0029] In summary, in one or more embodiments of this application, an air inlet communicating with the internal cavity of the housing is provided in the sealing silicone and the PCB board. An air inlet switch is used to open or close the air inlet, and the air inlet switch is slidably disposed on the sealing silicone. An airflow detection channel is formed between the sealing silicone and the PCB board, and the sealing silicone passes through the airflow channel communicating with the airflow detection channel. The surface of the air inlet switch facing the sealing silicone has a first air passage and a second air passage. When the electronic cigarette is working, the air inlet switch opens the air inlet, and the airflow channel communicates with the outside air through the first air passage. When the air inlet switch closes the air inlet, the airflow channel communicates with the internal cavity of the housing through the second air passage, and then the airflow detection channel communicates with the internal cavity of the housing through the airflow channel. This prevents a pressure difference from being generated between the internal cavity of the housing and the airflow detection channel, thereby preventing the airflow sensor from accidentally activating the electronic cigarette due to pressure imbalance.

[0030] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. An airflow switch structure for an electronic cigarette, characterized in that: The device includes a housing (10), a cartridge assembly (20) disposed within the housing (10), a sealing silicone (40) disposed at the bottom of the housing (10), and an air inlet switch (50). A PCB board (30) is disposed between the cartridge assembly (20) and the sealing silicone (40). The sealing silicone (40) and the PCB board (30) have air inlets (41) that communicate with the internal cavity of the housing (10). The air inlet switch (50) is used to open or close the vent (51) of the air inlet (41). An airflow is formed between the sealing silicone (40) and the PCB board (30). The detection channel (43) is provided with a sealing silicone (40) through which an airflow channel (42) is opened to connect the airflow detection channel (43). The air inlet switch (50) is provided with a first air passage (52) and a second air passage (53) facing the surface of the sealing silicone (40). When the air inlet switch (50) opens the air inlet (41), the airflow channel (42) is connected to the outside air through the first air passage (52). When the air inlet switch (50) closes the air inlet (41), the airflow channel (42) is connected to the internal cavity of the housing (10) through the second air passage (53).

2. The airflow switch structure of the electronic cigarette according to claim 1, characterized in that: An installation groove (46) is provided on the surface of the sealing silicone (40), the air inlet switch (50) is slidably disposed in the installation groove (46), and the air inlet (41) and the airflow channel (42) are provided in the installation groove (46).

3. The airflow switch structure of the electronic cigarette according to claim 2, characterized in that: The first air passage (52) is located on the side of the surface of the air intake switch (50). An air groove (44) is provided in the mounting groove (46) on the side near the first air passage (52). When the air intake switch (50) opens the air inlet (41), the airflow passage (42) is connected to the outside air through the air groove (44) and the first air passage (52).

4. The airflow switch structure of the electronic cigarette according to claim 2, characterized in that: A connecting groove (45) is formed in the mounting groove (46), and the connecting groove (45) extends from the air inlet (41) to the airflow channel (42).

5. The airflow switch structure of the electronic cigarette according to claim 1, characterized in that: The cartridge assembly (20) includes a battery (21) disposed above the PCB board (30), an oil cup (23) disposed above the battery (21), and a motherboard (22) disposed on one side of the battery (21).

6. The airflow switch structure of the electronic cigarette according to claim 5, characterized in that: The oil cup (23) is provided with oil storage cotton and atomizing core. The atomizing core is electrically connected to the main board (22). A silicone oil cup top (24) is provided at the end of the oil cup (23).

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