Electronic cigarette capable of automatically opening and closing oil tank

Abstract

This utility model discloses an electronic cigarette with good oil leakage prevention and easy operation, featuring an automatically opening and closing oil tank. The cigarette includes a shell, an atomizing component, an opening and closing component, a control circuit board, and a battery. The shell has a suction port and an air inlet. Inside the shell, a partition separates the inner cavity into an oil tank and a control chamber. The partition has a mounting hole in its center and an oil guide hole on its upper surface connecting to the oil tank. An oil valve channel communicating with the bottom of the oil guide hole and the side wall of the mounting hole is located within the partition. The atomizing component includes an atomizing outer tube and an atomizing core. The outer tube is inserted into the mounting hole and has an atomizing channel and an oil inlet. The atomizing core is located within the atomizing channel. The opening and closing component includes a motor and a rotary oil valve located above the motor, inserted into the oil valve channel, and driven by the motor. The top of the rotary oil valve has an oil guide groove, and the side wall of the oil guide groove has an oil passage hole. The rotary oil valve rotates under the drive of the motor's output shaft, either connecting the oil passage hole to the oil inlet hole or blocking the oil passage hole from the inner wall of the oil valve channel.

Description

Technical Field

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

[0002] When an e-cigarette is working, the negative pressure generated by the user's inhalation drives the microphone to start, heating the atomizer coil. Simultaneously, e-liquid in the tank enters the atomization channel under this negative pressure and is heated by the coil to form tiny atomized particles. Therefore, the atomization channel is often connected to the tank and air intake. In this situation, the tank often needs to be closed when the e-cigarette is not in use to prevent e-liquid from entering the atomization channel and flowing out through the air intake, causing leakage. Currently, most e-cigarettes on the market prevent leakage by using e-liquid reservoirs or plugs at the connection between the tank and the atomization channel, or by placing the tank below the coil and inverting the e-cigarette during use to allow e-liquid to enter, preventing it from entering the coil when the e-cigarette is upright. However, e-liquid reservoirs are porous and easily leak into the atomization channel, leading to leakage. Therefore, they are not very effective at preventing leakage. Plugs require manual operation to open and close the tank, which is cumbersome. The inverted oil inlet method places high demands on the placement of e-cigarettes. Since users often place the product haphazardly, e-liquid can easily enter the atomization channel when the e-cigarette is not placed upright, leading to leakage and insufficient anti-leakage effect. Utility Model Content

[0003] Therefore, it is necessary to address the above-mentioned shortcomings by providing an electronic cigarette with good oil leakage prevention, easy operation, and automatic oil tank opening and closing.

[0004] An electronic cigarette with an automatically opening and closing oil tank includes:

[0005] The housing has a suction port at the top and an air inlet at the bottom. A partition is provided inside the housing, which is sealed to the inner wall of the housing and separates the inner cavity of the housing to form an oil tank for storing e-liquid and a control chamber located below the oil tank. An installation hole is provided in the middle of the partition, and an oil guide hole is provided on the upper surface of the partition, located beside the installation hole and communicating with the oil tank. An oil valve channel is provided inside the partition, communicating with the bottom of the oil guide hole and the side wall of the installation hole.

[0006] The atomizing assembly includes an atomizing outer tube and an atomizing core. The atomizing outer tube is inserted into a mounting hole and has an atomizing channel communicating with the suction port and the air inlet, as well as an oil inlet hole penetrating the side wall of the atomizing channel and communicating with the oil valve channel. The atomizing core is housed in the atomizing channel.

[0007] An opening and closing assembly includes a motor housed within a control cavity, a rotary oil valve located above the motor and inserted into an oil valve channel, the bottom of the rotary oil valve being drivenly connected to the output shaft of the motor, and the top of the rotary oil valve having an oil guide groove communicating with the oil guide hole. An oil passage hole is formed on the side wall of the oil guide groove. The rotary oil valve rotates under the drive of the motor's output shaft to either connect the oil passage hole with the oil inlet hole or to block the oil passage hole with the inner wall of the oil valve channel.

[0008] An electronic control assembly, comprising a control circuit board housed within a control cavity and a battery, wherein the control circuit board is electrically connected to the battery, the atomizing core, and the motor.

[0009] In one embodiment, the lower surface of the separator is provided with a first mounting groove below the oil valve channel. The first mounting groove includes a first part located directly below the oil valve channel and communicating with the oil valve channel, and a second part located on the side of the first part facing away from the atomization channel and communicating with the first part. The second part has a fan-shaped structure and has a first position on one side and a second position on the other side. The opening and closing assembly also includes a limiting post. One end of the limiting post is fixedly connected to the lower side wall of the rotary oil valve, and the other end of the limiting post is located inside the second part. When the limiting post rotates to the first position inside the second part, the oil passage hole communicates with the oil inlet hole. When the limiting post rotates to the second position inside the second part, the inner wall of the oil valve channel blocks the oil passage hole.

[0010] In one embodiment, a connecting groove is provided on the lower surface of the rotary oil valve, the output shaft of the motor is inserted into the connecting groove and fixedly connected to the rotary oil valve, and the limiting post penetrates the side wall of the connecting groove and is fixedly connected to the output shaft of the motor.

[0011] In one embodiment, the lower part of the oil guide hole is provided with a first limiting ring extending along the height direction of the separator and into the oil valve channel. The inner space of the first limiting ring is connected to the oil guide hole and the oil valve channel respectively. The upper part of the oil valve channel is formed with a first annular limiting groove surrounding the first limiting ring. The top of the rotary oil valve is inserted into the first annular limiting groove and abuts against the top surface of the first annular limiting groove. The motor is limited and matched with the rotary oil valve along the height direction of the separator, and the output shaft of the motor is threadedly matched with the inner wall of the connecting groove.

[0012] In one embodiment, the housing includes a middle shell, a top shell fixed to the upper part of the middle shell and sealed to the middle shell and having the suction port, a bottom shell fixed to the lower part of the middle shell and sealed to the middle shell, a connecting pipe located in the oil tank, and a bracket located in the control cavity. The top end of the connecting pipe is sealed to the edge of the suction port, and the bottom end of the connecting pipe is sealed to the top end of the atomizing outer pipe. The inner cavity of the connecting pipe forms an air guide channel communicating with the suction port and the atomizing channel.

[0013] The bracket includes a support plate that abuts against the lower surface of the separator and the inner wall of the middle shell, an annular baffle fixed to the lower edge of the support plate and forming the control cavity together with the support plate, a guide tube located inside the annular baffle and extending along the height direction of the middle shell, and a limiting tube fixed to the lower surface of the support plate adjacent to the first mounting groove. The support plate has a central hole in the middle that communicates with the inner cavity of the guide tube and the inner cavity of the atomizing core. The support plate has a side hole on the side of the central hole that communicates with the inner cavity of the limiting tube and the first mounting groove. The bottom end of the guide tube communicates with the air inlet. The motor is inserted into the limiting tube and fixedly connected to the limiting tube. The output shaft of the motor is inserted into the first mounting groove through the side hole and fixedly connected to the lower part of the rotary oil valve. The battery is located on the side of the guide tube facing away from the motor. The control circuit board includes a horizontal circuit board located below the battery, the guide tube, and the motor, and a vertical circuit board located on the side of the limiting tube facing away from the guide tube and fixedly connected to the horizontal circuit board.

[0014] In one embodiment, the annular baffle has an installation notch corresponding to the vertical circuit board. The side of the vertical circuit board facing away from the battery has a display screen and a switch located above the display screen. The middle shell has a transparent observation window corresponding to the installation notch. The transparent observation window has a switch opening corresponding to the switch, and a display area is formed below the switch opening on the transparent observation window. The electronic control component also includes a button connected to the switch and a button protective sleeve that passes through the switch opening and fits the button.

[0015] In one embodiment, the upper surface of the horizontal circuit board is provided with a microphone, and the housing further includes a microphone protector located above the horizontal circuit board, a gas regulating protector located below the horizontal circuit board, and a gas regulating valve located below the gas regulating protector.

[0016] The microphone protector has a connecting ring on its upper surface and a receiving groove on its lower surface. A first through groove communicating with the connecting ring and the receiving groove is opened in the middle of the microphone protector. The bottom end of the guide tube is inserted into the inner space of the connecting ring and is sealed to the connecting ring. The guide tube is also connected to the first through groove. The microphone is eccentrically positioned in the receiving groove. A first vent hole is opened on the side of the microphone on the horizontal circuit board, penetrating the upper and lower surfaces of the horizontal circuit board and communicating with the receiving groove. The lower surface of the microphone protector abuts against and is sealed to the upper surface of the horizontal circuit board.

[0017] The upper surface of the bottom shell is provided with a second limiting ring, and the lower surface of the bottom shell is provided with an air inlet that communicates with the inner space of the second limiting ring. The air regulating protective component is housed in the inner space of the second limiting ring and elastically abuts against the inner wall of the second limiting ring and the lower surface of the horizontal circuit board. The lower surface of the air regulating protective component is provided with a guide groove, and the upper surface of the air regulating protective component is provided with a second air passage that communicates with the guide groove and the first air passage. The air regulating valve is embedded in the guide groove and abuts against the inner edge of the air inlet. The air regulating valve is provided with at least one adjusting hole. The air regulating valve slides between a third position and a fourth position in the guide groove. When the air regulating valve slides to the third position, it blocks the second air passage. When the air regulating valve slides to the fourth position, it communicates with the second air passage.

[0018] In one embodiment, the lower surface of the horizontal circuit board is provided with a charging connector, and the bottom shell has an opening for threading the charging connector.

[0019] In one embodiment, the atomizing core includes a tubular atomizing support housed within an atomizing channel, an annular oil-retaining cotton disposed within the inner cavity of the tubular atomizing support, and a heating wire located within the annular oil-retaining cotton ring and electrically connected to a control circuit board. The tubular atomizing support has a through hole communicating with the oil inlet.

[0020] In one embodiment, the lower surface of the separator is provided with a second mounting groove corresponding to the central hole, and the upper surface of the support plate is fixed with a third limiting ring inserted into the second mounting groove on the circumferential side of the central hole. The lower part of the inner wall of the mounting hole is provided with an annular protrusion that communicates with the third limiting ring and the mounting hole. The annular protrusion separates the lower part of the mounting hole to form a second through groove and a second annular limiting groove surrounding the second through groove. The bottom ends of the atomizing outer tube and the tubular atomizing bracket are inserted into the second annular limiting groove, and the bottom end of the annular oil storage cotton abuts against the top end of the annular protrusion.

[0021] This invention relates to an electronic cigarette with an automatically opening and closing oil tank. A rotary oil valve with an oil guide groove and an oil passage hole is installed within the oil valve channel. The output shaft of a motor is connected to the rotary oil valve. By controlling the rotation of the motor output shaft, the rotary oil valve rotates until the oil passage hole connects with the oil inlet hole, allowing e-liquid in the oil tank to enter the atomization channel through the oil valve channel to supply e-liquid to the atomizer core. Alternatively, the rotary oil valve rotates until the inner wall of the oil valve channel blocks the oil passage hole, thus cutting off the connection between the oil tank and the atomization channel and stopping the supply of e-liquid to the atomizer core. Thus, only the rotation of the motor output shaft is needed to automatically open and close the oil tank, making it easy to operate and reducing the difficulty of opening and closing the oil tank. When the inner wall of the oil valve channel blocks the oil passage hole, the oil path is completely blocked, preventing e-liquid from entering the atomization channel. Furthermore, no oil leakage occurs whether the electronic cigarette is placed upright or upside down, improving the leak-proof effect of the electronic cigarette. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an electronic cigarette in one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the explosion structure of an electronic cigarette in one embodiment of the present invention;

[0024] Figure 3 This is a structural schematic diagram of a vertical cross-section of an electronic cigarette in a certain state according to one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the horizontal cross-section of an electronic cigarette in one state according to an embodiment of the present invention;

[0026] Figure 5 This is a structural schematic diagram of a vertical cross-section of an electronic cigarette in another state according to one embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the horizontal cross-section of an electronic cigarette in another state according to one embodiment of the present invention. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] Please combine Figure 1-6This utility model discloses an electronic cigarette with good oil leakage prevention and easy operation, featuring an automatically opening and closing oil tank. The electronic cigarette includes a housing 100, an atomizing component 200, an opening and closing component 300, and an electronic control component 400. The housing 100 houses the other components and provides a place for e-liquid atomization. A suction port 110 is provided at the top of the housing 100 to form the mouthpiece of the electronic cigarette, and an air inlet 120 is provided at the bottom of the housing 100. A partition 500 is provided inside the housing 100, which is sealed to the inner wall of the housing 100 and separates the inner cavity of the housing 100 to form an oil tank 510 for storing e-liquid and a control cavity 520 located below the oil tank 510. The separator 500 has a mounting hole 530 in the middle, and an oil guide hole 540 located beside the mounting hole 530 and communicating with the oil tank 510 on the upper surface of the separator 500. An oil valve channel 550 communicating with the bottom of the oil guide hole 540 and the side wall of the mounting hole 530 is provided inside the separator 500. The atomizing assembly 200 includes an atomizing outer tube 210 and an atomizing core 220. The atomizing outer tube 210 is inserted into the mounting hole 530. The atomizing outer tube 210 has an atomizing channel 211 communicating with the suction port 110 and the air inlet 120, and an oil inlet hole 212 penetrating the side wall of the atomizing channel 211 and communicating with the oil valve channel 550. The atomizing core 220 is housed in the atomizing channel. The opening / closing assembly 300 includes a motor 310 housed within a control cavity 520 and a rotary oil valve 320 located above the motor 310 and inserted into an oil valve channel 550. The bottom of the rotary oil valve 320 is driven and connected to the output shaft of the motor 310. The top of the rotary oil valve 320 has an oil guide groove 321 communicating with an oil guide hole 540. An oil passage hole 322 is formed on the side wall of the oil guide groove 321. The rotary oil valve 320 rotates under the drive of the output shaft of the motor 310, so that the oil passage hole 322 communicates with the oil inlet hole 212, or the inner wall of the oil valve channel 550 blocks the oil passage hole 322. In this embodiment, the atomization channel 211 and the oil tank 510 are only connected when the oil passage hole 322 and the oil inlet hole 212 are connected, so that the e-liquid in the oil tank 510 can flow into the atomization channel 211 and provide atomizing material for the atomizing core 220 to form smoke. The electronic control assembly 400 includes a control circuit board 410 and a battery 420 housed in a control cavity 520. The control circuit board 410 is electrically connected to the battery 420, the atomizing core 220, and the motor 310.

[0030] It should be noted that in this embodiment, the oil guide groove 321 at the top of the rotary oil valve 320 is always connected to the oil tank 510, that is, the oil guide groove 321 always contains e-liquid. When the user needs to use the e-cigarette, inhaling it creates a negative pressure at the inhalation port 110. Under this negative pressure, air from outside the housing 100 enters the atomization channel 211 through the air inlet 120. At this time, the control circuit board 410 controls the atomizing core 220 and the motor 310 to work, causing the atomizing core 220 to heat up. Simultaneously, the output shaft of the motor 310 drives the rotary oil valve 320 to rotate, causing at least a portion of the oil passage 322 to separate from the oil valve channel 550. The oil passage 322 then connects with the oil inlet 212, allowing the e-liquid in the oil tank 510 to sequentially enter the atomization channel 211 through the oil guide groove 321, the oil passage 322, and the oil inlet 212. Within the atomization channel 211, the e-liquid is heated by the atomizing core 220 to form vapor (oil mist) for the user to inhale. As the rotary valve 320 continues to rotate, the portion of the oil passage 322 blocked by the inner wall of the valve channel 550 gradually decreases, and the e-liquid flow gradually increases until the oil passage 322 is completely away from the inner wall of the valve channel 550. At this point, the motor 310 stops operating under the control of the control circuit board 410. At this time, the e-liquid flow reaches its maximum, and the oil passage 322 is fully open, continuously and stably supplying e-liquid to the atomizer core 220 in the atomization channel 211. When the e-cigarette is finished being used, the control circuit board 410 controls the motor 310 to operate, causing the output shaft of the motor 310 to drive the rotary valve 320 to rotate. This gradually seals the oil passage 322 from the inner wall of the valve channel 550 until the oil passage 322 is completely blocked by the inner wall of the valve channel 550, thus trapping the e-liquid in the guide groove 321. This blocks the connection between the oil tank 510 and the atomization channel 211, stopping the supply of e-liquid to the atomizer core 220 and preventing leakage.

[0031] The aforementioned electronic cigarette with an automatically opening and closing oil tank features a rotary oil valve 320 within the oil valve channel 550, which has an oil guide groove 321 and an oil passage hole 322. The output shaft of the motor 310 is connected to the rotary oil valve 320. By controlling the rotation of the motor 310's output shaft, the rotary oil valve 320 can rotate until the oil passage hole 322 connects with the oil inlet hole 212, allowing the e-liquid in the oil tank 510 to enter the atomization channel 211 through the oil valve channel 550 to supply e-liquid to the atomizing coil 220. Alternatively, the rotary oil valve 320 can rotate until the inner wall of the oil valve channel 550 is blocked. The oil passage 322 blocks the connection between the oil tank 510 and the atomization channel 211, stopping the supply of oil to the atomizing core 220. Thus, the oil tank 510 can be automatically switched on and off simply by controlling the output shaft of the motor 310. This is easy to operate and reduces the difficulty of switching the oil tank 510 on and off. When the inner wall of the oil valve channel 550 blocks the oil passage 322, the oil path is completely blocked by the inner wall of the oil valve channel 550, blocking the path of e-liquid into the atomization channel 211. Moreover, there will be no oil leakage whether the e-cigarette is placed upright or upside down, thus improving the oil leakage prevention effect of the e-cigarette.

[0032] The separator 500 is a columnar structure made of silicone material. The separator 500 abuts against the inner wall of the housing 100 to isolate the oil tank 510 from the control chamber 520, preventing e-liquid from entering the control chamber 520. In this embodiment, the upper surface of the separator 500 is located inside the oil tank 510, and the lower surface of the separator 500 is provided with a first mounting groove 560 below the oil valve channel 550. The first mounting groove 560 includes a first portion 561 located directly below and communicating with the oil valve channel 550, and a second portion 562 located on the side of the first portion 561 facing away from the atomization channel 211 and communicating with the first portion 561. The second portion 562 has a fan-shaped structure and has a first position on one side and a second position on the other side. The opening and closing assembly 300 also includes a limiting post 330. One end of the limiting post 330 is fixedly connected to the lower side wall of the rotary oil valve 320, and the other end of the limiting post 330 is located in the second part 562. The upper part of the rotary oil valve 320 is located in the oil valve channel 550, and the lower part of the rotary oil valve 320 is located in the first part 561. When the rotary oil valve 320 rotates under the drive of the output shaft of the motor 310, the limiting post 330 rotates between the first position and the second position in the second part 562 with the axis of the output shaft of the motor 310 as the center. By constraining the limiting post 330 by the two opposing inner side walls of the second part 562, the rotation range of the second limiting post 330 can be limited, that is, the rotation amplitude of the rotary oil valve 320 can be limited. In this embodiment, when the limiting post 330 rotates to the first position within the second part 562, the oil passage 322 communicates with the oil inlet 212. When the limiting post 330 rotates to the second position within the second part 562, the inner wall of the oil valve channel 550 blocks the oil passage 322.

[0033] Furthermore, the inner wall of the second part 562 is provided with a first contact switch electrically connected to the control circuit board 410 at the first position, and a second contact switch electrically connected to the control circuit board 410 is provided at the second position on the inner wall of the second part 562. In this way, on the one hand, the rotation amplitude of the rotary oil valve 320 can be limited by the inner wall of the second part 562, so that when the limiting post 330 rotates to the two extreme positions in the second part 562, the oil passage 322 is completely connected to the oil inlet 212, or the oil passage 322 is completely blocked by the inner wall of the oil valve channel 550, ensuring the reliability of the opening and closing of the oil tank 510; on the other hand, when the control circuit board 410 receives the electrical signal of the first contact switch, it determines that the oil tank 510 is fully open and controls the motor 310 to stop. Thus, when the control circuit board 410 receives the signal to control the motor 310 to operate again, it reverses the control motor 310, so that the limiting post 330 rotates to the second position, thereby blocking the oil passage 322 through the oil valve channel 550.

[0034] In one embodiment, a connecting groove 323 is provided on the lower surface of the rotary oil valve 320. The output shaft of the motor 310 is inserted into the connecting groove 323 and fixedly connected to the rotary oil valve 320. A limiting post 330 penetrates the side wall of the connecting groove 323 and is fixedly connected to the output shaft of the motor 310. Preferably, the limiting post 330 is a screw that penetrates the side wall of the connecting groove 323 and is fixedly connected to the output shaft of the motor 310. Furthermore, the lower part of the oil guide hole 540 is provided with a first limiting ring extending along the height direction of the separator 500 and extending into the oil valve channel 550. The inner space of the first limiting ring is connected to the oil guide hole 540 and the oil valve channel 550 respectively. The upper part of the oil valve channel 550 forms a first annular limiting groove around the first limiting ring. The top of the rotary oil valve 320 is inserted into the first annular limiting groove and abuts against the top surface of the first annular limiting groove. The motor 310 is limited and cooperates with the rotary oil valve 320 along the height direction of the separator 500, and the output shaft of the motor 310 is threadedly engaged with the inner wall of the connecting groove 323. Thus, because the top of the rotary oil valve 320 abuts against the top surface of the first annular limiting groove, and the motor 310 is engaged with the rotary oil valve 320 along the height direction of the separator 500, the height direction of the rotary oil valve 320 is limited. Furthermore, because the limiting post 330 penetrates the side wall of the connecting groove 323 and is fixedly connected to the output shaft of the motor 310, the rotary oil valve 320 and the output shaft of the motor 310 are connected as one unit through the limiting post 330. This ensures that the rotary oil valve 320 always rotates synchronously with the output shaft of the motor 310 during its rotation. Simultaneously, the limiting post 330 limits the rotation range of the rotary oil valve 320 to adjust the relative position between the oil passage 322 and the inner wall of the oil valve channel 550, thereby realizing the opening and closing of the oil tank 510. In this embodiment, the threaded engagement between the output shaft of the motor 310 and the inner wall of the connecting groove 323 aims to increase the contact area between the output shaft of the motor 310 and the inner wall of the connecting groove 323, thereby improving the stability of their connection.

[0035] The housing 100 includes a middle shell 130, a top shell 140 fixed to the upper part of the middle shell 130 and sealed to the middle shell 130 and having a suction port 110, a bottom shell 150 fixed to the lower part of the middle shell 130 and sealed to the middle shell 130, a connecting pipe 160 located in the oil tank 510, and a bracket 170 located in the control chamber 520. The top end of the connecting pipe 160 is sealed to the edge of the suction port 110, and the bottom end of the connecting pipe 160 is sealed to the top end of the atomizing outer pipe 210. The inner cavity of the connecting pipe 160 forms an air guide channel 161 that communicates with the suction port 110 and the atomizing channel 211. Furthermore, the suction port 110 is fitted with a removable cap and a mouthpiece plug 111. When the user is not using the e-cigarette, the mouthpiece plug 111 can be placed over the suction port 110 to prevent residual e-liquid in the atomization channel 211 from flowing out through the suction port 110. It also prevents external dust and impurities from entering the atomization channel 211 through the suction port 110, thus avoiding blockage. Additionally, the bottom end of the connecting tube 160 has a slot 162. The top end of the atomizing outer tube 210 is inserted into this slot 162 and sealed to the inner wall of the slot 162 by at least two silicone sealing rings 163, preventing air leakage or oil seepage at the mating point between the atomizing outer tube 210 and the connecting tube 160. The top end of the connecting tube 160 is integrally formed with the top shell 140, and the top end of the connecting tube 160 completely surrounds the lower edge of the suction port 110 to prevent e-liquid in the oil tank 510 from entering the airflow channel 161 from the top end of the connecting tube 160.

[0036] The bracket 170 includes a support plate 171 that abuts against the lower surface of the separator 500 and the inner wall of the middle shell 130; an annular baffle 172 fixed to the lower edge of the support plate 171 and forming a control cavity 520 together with the support plate 171; a guide tube 173 located inside the annular baffle 172 and extending along the height direction of the middle shell 130; and a limiting tube 174 fixed to the lower surface of the support plate 171 adjacent to the first mounting groove 560. A central section of the support plate 171 is provided. The guide tube 173 has a central hole communicating with the inner cavity of the guide tube 173 and the inner cavity of the atomizing core 220. A side hole is provided on the support plate 171 beside the central hole, communicating with the inner cavity of the limiting tube 174 and the first mounting groove 560. The bottom end of the guide tube 173 communicates with the air inlet 120. The motor 310 is inserted into the limiting tube 174 and fixedly connected to it. The output shaft of the motor 310 is inserted into the first mounting groove 560 via the side hole and fixedly connected to the lower part of the rotary oil valve 320. In this embodiment, by setting the annular baffle 172, the contact area between the support 170 and the inner wall of the middle shell 130 is increased, and the mechanical strength of the support 170 is improved, preventing deformation of the support 170 under the pressure of the separator 500. The guide tube 173 serves as a connecting channel between the atomizing channel 211 and the air inlet 120, allowing airflow to be guided from the bottom of the electronic cigarette to the atomizing channel 211 in the middle of the electronic cigarette. The limiting tube 174 is used to mount the motor 310 to position it. In this embodiment, the inner wall of the limiting tube 174 protrudes near the bottom of the limiting tube 174 to form an annular step. The annular side of the motor 310 is provided with another limiting step that matches the shape of the annular step. Thus, the annular step and the limiting step cooperate to support the motor 310, thereby positioning the motor 310 on the bracket 170 and preventing the motor 310 from moving during operation. Of course, in other embodiments, while the motor 310 is mounted on the limiting tube 174 through the cooperation of the limiting step and the annular step, a secondary positioning of the motor 310 and the limiting tube 174 can be achieved by inserting a screw through the limiting tube 174 and into the motor 310, further improving the stability of the connection between the motor 310 and the limiting tube 174. The battery 420 is located on the side of the guide tube 173 facing away from the motor 310. That is, the battery 420 and the motor 310 are respectively positioned on opposite sides of the guide tube 173 to make efficient use of the space on both sides of the guide tube 173. The control circuit board 410 includes a horizontal circuit board 411 located below the battery 420, the guide tube 173, and the motor 310, and a vertical circuit board 412 located on the side of the limiting tube 174 facing away from the guide tube 173 and fixedly connected to the horizontal circuit board 411. In this embodiment, the horizontal circuit board 411 and the vertical circuit board 412 are only used to define the positions of the two sub-circuit boards of the control circuit board 410, and do not define their specific circuit structure. The horizontal circuit board 411 and the vertical circuit board 412 are electrically connected to jointly control the entire electronic cigarette.

[0037] It should be noted that in this embodiment, the upper surface edge of the support plate 171 is provided with an annular support portion 175, and a protruding ring 570 is provided in the middle of the annular side surface of the separator 500. The protruding ring 570 is distributed around the circumference of the separator 500. The lower outer side surface of the top shell 140 abuts against the upper inner side surface of the middle shell 130, the upper outer side surface of the bottom shell 150 abuts against the lower inner side surface of the middle shell 130, the bottom end of the top shell 140 abuts against the upper surface of the protruding ring 570, and the lower inner side surface of the top shell 140 abuts against the annular side surface of the separator 500 located above the protruding ring 570. The outer ring surface of the support 175 abuts against the inner wall of the middle shell 130, the inner ring surface of the annular support 175 abuts against the side ring of the separator 500 located below the convex ring 570, the top of the annular support 175 abuts against the lower surface of the convex ring 570, and the outer ring surface of the convex ring 570 abuts against the inner side surface of the middle shell 130. In this way, while separating the oil tank 510 and the control cavity 520 by the separator 500 to prevent oil leakage, the installation position of the bracket 170 and the top shell 140 can be limited by the convex ring 570 on the separator 500, so as to reduce the assembly difficulty of the electronic cigarette.

[0038] In one embodiment, an mounting notch 176 is provided on the annular baffle 172 corresponding to the vertical circuit board 412. A display screen 413 and a switch 414 located above the display screen 413 are provided on the side of the vertical circuit board 412 facing away from the battery 420. A transparent observation window 131 is provided on the middle shell 130 corresponding to the mounting notch 176. A switch opening 132 corresponding to the switch is provided on the transparent observation window 131, and a display area is formed below the switch opening 132 on the transparent observation window 131. The electronic control assembly 400 also includes a button 415 connected to the switch and a button protective sleeve 416 passing through the switch opening 132 and sleeved on the button 415. Preferably, the transparent observation window 131 can be made of colored or colorless acrylic sheet, glass or plexiglass material, and the transparency of the transparent observation window 131 is between 50% and 100%. In this way, during the use of the e-cigarette, the user can view the parameters displayed on the screen 413 through the transparent observation window 131, such as the battery level 420, the e-cigarette's operating voltage, and the status of the e-liquid tank 510, and understand the e-cigarette's working status in real time. When using the e-cigarette, the user can send an electrical signal to the vertical circuit board 412 by pressing the button 415 to start or stop the e-cigarette. Specifically, when the user presses the button 415 to start the e-cigarette, the control circuit board 410 controls the atomizer 220 and the motor 310 to work synchronously, so as to open the e-liquid tank 510 and heat up the atomizer 220, thereby atomizing the e-liquid flowing into the atomization channel 211. Conversely, when the user presses the button 415 to turn off the e-cigarette, the control circuit board 410 controls the atomizer 220 to stop heating, and the motor 310 reverses to close the e-liquid tank 510. In this way, the e-cigarette closes the e-liquid tank 510 at the same time as it is turned off, which can prevent the occurrence of e-liquid leakage.

[0039] In this embodiment, the upper surface of the horizontal circuit board 411 is provided with a microphone 417, and the housing 100 also includes a microphone protector 4171 located above the horizontal circuit board 411, a gas regulating protector 418 located below the horizontal circuit board 411, and a gas regulating valve 419 located below the gas regulating protector 418. The microphone protector 4171 is made of silicone material. The upper surface of the microphone protector 4171 is provided with a connecting ring 4172, and the lower surface of the microphone protector 4171 is provided with a receiving groove 4173. The middle part of the microphone protector 4171 is provided with a first through groove that communicates with the connecting ring 4172 and the receiving groove 4173. The bottom end of the guide tube 173 is inserted into the inner space of the connecting ring 4172 and is sealed to the connecting ring 4172. The guide tube 173 is connected to the first through groove, thereby achieving a primary isolation between the control cavity 520 and the air duct 161 to prevent e-liquid from entering the control cavity 520 through the gap at the connection between the guide tube 173 and the microphone protector 4171. The microphone 417 is eccentrically positioned within the receiving groove 4173. The microphone 417 is electrically connected to the control circuit board 410 and is triggered and activated under the negative pressure generated during user inhalation to control the operation of the atomizing core 220. This eccentric positioning ensures that the microphone 417 can be triggered and activated under negative pressure when the inhalation port 110 is being inhaled. Furthermore, it prevents e-liquid dripping from the atomization channel 211 from falling onto the microphone 417 and contaminating it. A first air vent is provided on the horizontal circuit board 411 beside the microphone 417, penetrating the upper and lower surfaces of the horizontal circuit board 411 and communicating with the receiving groove 4173. The lower surface of the microphone protector 4171 abuts against and seals against the upper surface of the horizontal circuit board 411, achieving secondary isolation between the control chamber 520 and the air duct 161, further preventing e-liquid from entering the control chamber 520.

[0040] The upper surface of the bottom shell 150 is provided with a second limiting ring 151, and the lower surface of the bottom shell 150 is provided with an air inlet 120 communicating with the inner space of the second limiting ring 151. The air inlet 120 has a racetrack-shaped structure and extends along the width direction of the electronic cigarette. The gas regulating protection component 418 is made of silicone material. The gas regulating protection component 418 is housed in the inner space of the second limiting ring 151 and elastically abuts against the inner wall of the second limiting ring 151 and the lower surface of the horizontal circuit board 411 to prevent air leakage and ensure the stability of the air pressure in the air guide channel 161 during inhalation. The lower surface of the gas regulating protection component 418 is provided with a guide groove 4181, and the upper surface of the gas regulating protection component 418 is provided with a second air passage 4182 that communicates with the guide groove 4181 and the first air passage. The gas regulating valve 419 is embedded in the guide groove 4181 and abuts against the inner edge of the air inlet 120. That is, the dimension of the air inlet 120 along the width direction of the e-cigarette is smaller than the dimension of the guide groove 4181 along the width direction of the e-cigarette, and the dimension of the air inlet 120 along the thickness direction of the e-cigarette is smaller than the dimension of the guide groove along the thickness direction of the e-cigarette. In this way, the gas regulating valve 419 is restricted between the bottom shell 150 and the gas regulating protection component 418, which can prevent the gas regulating valve 419 from falling off the bottom shell 150 and achieve the positioning of the gas regulating valve 419. In this embodiment, the air regulating valve 419 has at least one regulating hole. The air regulating valve 419 slides between a third position and a fourth position within the guide groove 4181. When the air regulating valve 419 slides to the third position, it blocks the second air passage 4182. When the air regulating valve 419 slides to the fourth position, it connects with the second air passage 4182. Thus, by pushing the air regulating valve 419, it moves within the guide groove 4181, allowing the regulating hole to connect with or separate from the second air passage 4182. This achieves the connection or blockage between the air inlet 120 and the atomizing channel 211, ensuring smooth air intake for the electronic cigarette. When the user does not need to use the electronic cigarette, they can slide the air regulating valve 419 to close the air inlet 120, thereby preventing e-liquid from leaking out through the air inlet 120 and preventing e-liquid leakage. In addition, in this embodiment, the lower surface of the air regulating valve 419 is provided with anti-slip texture on the side of the regulating hole to avoid slippage when the air regulating valve 419 is turned, thereby reducing the difficulty of adjusting the air regulating valve 419.

[0041] In one embodiment, a charging connector 4111 is provided on the lower surface of the horizontal circuit board 411, and a socket for the charging connector 4111 is provided on the bottom shell 150. Thus, the user can electrically connect the charging connector 4111 and an external power source via a connecting cable to charge the battery 420, ensuring that the battery 420 has sufficient power to support the operation of the electronic cigarette.

[0042] The atomizing core 220 includes a tubular atomizing support 221 housed within the atomizing channel 211, an annular oil-retaining cotton 222 disposed within the inner cavity of the tubular atomizing support 221, and a heating wire 223 located within the annular oil-retaining cotton 222 and electrically connected to the control circuit board 410. The tubular atomizing support 221 has a through hole communicating with the oil inlet 212. In this embodiment, the tubular atomizing support 221 is made of ceramic or silicon carbide material. When the oil tank 510 is opened, e-liquid enters the inner cavity of the tubular atomizing support 221 through the oil inlet 212 on the atomizing outer tube 210 and soaks the annular oil-retaining cotton 222. The e-liquid is diverted through several micropores on the annular oil-retaining cotton 222, dispersing it into several fine droplets. After passing through the annular oil-retaining cotton 222, the e-liquid is heated by the heating wire 223 within the annular space of the annular oil-retaining cotton 222, thereby forming a mist-like e-liquid for the user to inhale.

[0043] In one embodiment, the lower surface of the separator 500 is provided with a second mounting groove 580 corresponding to the central hole. The upper surface of the support plate 171 is fixed with a third limiting ring inserted into the second mounting groove 580 on the annular side of the central hole. Thus, through the concave-convex cooperation between the third limiting ring and the second mounting groove 580, the mutual positioning between the bracket 170 and the separator 500 can be achieved, so that the bracket 170 and the separator 500 can be quickly aligned and installed during the assembly of the electronic cigarette, thereby reducing the assembly difficulty of the electronic cigarette. The lower part of the inner wall of the mounting hole 530 is provided with an annular protrusion 531 that communicates with the third limiting ring and the mounting hole 530. The annular protrusion 531 separates the lower part of the mounting hole 530 to form a second through groove and a second annular limiting groove 532 surrounding the second through groove. The bottom ends of the atomizing outer tube 210 and the tubular atomizing bracket 170 are inserted into the second annular limiting groove 532, and the bottom end of the annular oil storage cotton 222 abuts against the top end of the annular protrusion 531. Thus, the bottom ends of the atomizing outer tube 210 and the tubular atomizing bracket 170 are supported by the second annular limiting groove 532, and the bottom end of the annular oil-collecting cotton 222 is supported by the annular protrusion 531. On the one hand, this facilitates the quick positioning and installation of the atomizing outer tube 210 and the atomizing core 220 on the separator 500. On the other hand, the limiting of the bottom ends of the atomizing outer tube 210 and the tubular atomizing bracket 170 by the second annular limiting groove 532 can prevent the atomizing outer tube 210 and the atomizing core 220 from shaking relative to the separator 500, thereby improving the stability of the electronic cigarette structure.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electronic cigarette with an automatically opening and closing oil tank, characterized in that, include: The housing has a suction port at the top and an air inlet at the bottom. A partition is provided inside the housing, which is sealed to the inner wall of the housing and separates the inner cavity of the housing to form an oil tank for storing e-liquid and a control chamber located below the oil tank. An installation hole is provided in the middle of the partition, and an oil guide hole is provided on the upper surface of the partition, located beside the installation hole and communicating with the oil tank. An oil valve channel is provided inside the partition, communicating with the bottom of the oil guide hole and the side wall of the installation hole. The atomizing assembly includes an atomizing outer tube and an atomizing core. The atomizing outer tube is inserted into a mounting hole and has an atomizing channel communicating with the suction port and the air inlet, as well as an oil inlet hole penetrating the side wall of the atomizing channel and communicating with the oil valve channel. The atomizing core is housed in the atomizing channel. An opening and closing assembly includes a motor housed in a control cavity, a rotary oil valve located above the motor and inserted into an oil valve channel, the bottom of the rotary oil valve being driven to connect with the output shaft of the motor, and the top of the rotary oil valve having an oil guide groove communicating with the oil guide hole. The side wall of the oil guide groove has an oil passage hole. The rotary oil valve rotates under the drive of the output shaft of the motor to make the oil passage hole communicate with the oil inlet hole, or to make the inner wall of the oil valve channel block the oil passage hole. as well as An electronic control assembly, comprising a control circuit board housed within a control cavity and a battery, wherein the control circuit board is electrically connected to the battery, the atomizing core, and the motor.

2. The electronic cigarette with an automatically opening and closing oil tank according to claim 1, characterized in that, The lower surface of the separator is provided with a first mounting groove below the oil valve channel. The first mounting groove includes a first part located directly below the oil valve channel and communicating with the oil valve channel, and a second part located on the side of the first part facing away from the atomization channel and communicating with the first part. The second part has a fan-shaped structure and has a first position on one side and a second position on the other side. The opening and closing assembly also includes a limiting post. One end of the limiting post is fixedly connected to the lower side wall of the rotary oil valve, and the other end of the limiting post is located inside the second part. When the limiting post rotates to the first position inside the second part, the oil passage hole communicates with the oil inlet hole. When the limiting post rotates to the second position inside the second part, the inner wall of the oil valve channel blocks the oil passage hole.

3. The electronic cigarette with an automatically opening and closing oil tank according to claim 2, characterized in that, The lower surface of the rotary oil valve is provided with a connecting groove, the output shaft of the motor is inserted into the connecting groove and fixedly connected to the rotary oil valve, and the limiting post passes through the side wall of the connecting groove and is fixedly connected to the output shaft of the motor.

4. The electronic cigarette with an automatically opening and closing oil tank according to claim 3, characterized in that, The lower part of the oil guide hole is provided with a first limiting ring extending along the height direction of the separator and into the oil valve channel. The inner space of the first limiting ring is connected to the oil guide hole and the oil valve channel respectively. The upper part of the oil valve channel is formed with a first annular limiting groove surrounding the first limiting ring. The top of the rotary oil valve is inserted into the first annular limiting groove and abuts against the top surface of the first annular limiting groove. The motor is limited and matched with the rotary oil valve along the height direction of the separator, and the output shaft of the motor is threadedly matched with the inner wall of the connecting groove.

5. The electronic cigarette with an automatically opening and closing oil tank according to claim 2, characterized in that, The housing includes a middle shell, a top shell fixed to the upper part of the middle shell and sealed to the middle shell and having the suction port, a bottom shell fixed to the lower part of the middle shell and sealed to the middle shell, a connecting pipe located in the oil tank, and a bracket located in the control chamber. The top end of the connecting pipe is sealed to the edge of the suction port, and the bottom end of the connecting pipe is sealed to the top end of the atomizing outer pipe. The inner cavity of the connecting pipe forms an air guide channel communicating with the suction port and the atomizing channel. The bracket includes a support plate that abuts against the lower surface of the separator and the inner wall of the middle shell, an annular baffle fixed to the lower edge of the support plate and forming the control cavity together with the support plate, a guide tube located inside the annular baffle and extending along the height direction of the middle shell, and a limiting tube fixed to the lower surface of the support plate adjacent to the first mounting groove. The support plate has a central hole in the middle that communicates with the inner cavity of the guide tube and the inner cavity of the atomizing core. The support plate has a side hole on the side of the central hole that communicates with the inner cavity of the limiting tube and the first mounting groove. The bottom end of the guide tube communicates with the air inlet. The motor is inserted into the limiting tube and fixedly connected to the limiting tube. The output shaft of the motor is inserted into the first mounting groove through the side hole and fixedly connected to the lower part of the rotary oil valve. The battery is located on the side of the guide tube facing away from the motor. The control circuit board includes a horizontal circuit board located below the battery, the guide tube, and the motor, and a vertical circuit board located on the side of the limiting tube facing away from the guide tube and fixedly connected to the horizontal circuit board.

6. The electronic cigarette with an automatically opening and closing oil tank according to claim 5, characterized in that, The annular baffle has an installation notch corresponding to the vertical circuit board. The side of the vertical circuit board facing away from the battery has a display screen and a switch above the display screen. The middle shell has a transparent observation window corresponding to the installation notch. The transparent observation window has a switch opening corresponding to the switch, and a display area is formed below the switch opening on the transparent observation window. The electronic control component also includes a button connected to the switch and a button protective sleeve that passes through the switch opening and fits the button.

7. The electronic cigarette with an automatically opening and closing oil tank according to claim 5, characterized in that, The upper surface of the horizontal circuit board is provided with a microphone, and the housing also includes a microphone protection component located above the horizontal circuit board, a gas regulating protection component located below the horizontal circuit board, and a gas regulating valve located below the gas regulating protection component. The microphone protector has a connecting ring on its upper surface and a receiving groove on its lower surface. A first through groove communicating with the connecting ring and the receiving groove is opened in the middle of the microphone protector. The bottom end of the guide tube is inserted into the inner space of the connecting ring and is sealed to the connecting ring. The guide tube is also connected to the first through groove. The microphone is eccentrically positioned in the receiving groove. A first vent hole is opened on the side of the microphone on the horizontal circuit board, penetrating the upper and lower surfaces of the horizontal circuit board and communicating with the receiving groove. The lower surface of the microphone protector abuts against and is sealed to the upper surface of the horizontal circuit board. The upper surface of the bottom shell is provided with a second limiting ring, and the lower surface of the bottom shell is provided with an air inlet that communicates with the inner space of the second limiting ring. The air regulating protective component is housed in the inner space of the second limiting ring and elastically abuts against the inner wall of the second limiting ring and the lower surface of the horizontal circuit board. The lower surface of the air regulating protective component is provided with a guide groove, and the upper surface of the air regulating protective component is provided with a second air passage that communicates with the guide groove and the first air passage. The air regulating valve is embedded in the guide groove and abuts against the inner edge of the air inlet. The air regulating valve is provided with at least one adjusting hole. The air regulating valve slides between a third position and a fourth position in the guide groove. When the air regulating valve slides to the third position, it blocks the second air passage. When the air regulating valve slides to the fourth position, it communicates with the second air passage.

8. The electronic cigarette with an automatically opening and closing oil tank according to claim 5, characterized in that, The lower surface of the horizontal circuit board is provided with a charging connector, and the bottom shell has an opening for threading the charging connector.

9. The electronic cigarette with an automatically opening and closing oil tank according to claim 5, characterized in that, The atomizing core includes a tubular atomizing support housed in the atomizing channel, an annular oil storage cotton disposed in the inner cavity of the tubular atomizing support, and a heating wire located in the space inside the annular oil storage cotton and electrically connected to the control circuit board. The tubular atomizing support has a through hole communicating with the oil inlet.

10. The electronic cigarette with an automatically opening and closing oil tank according to claim 9, characterized in that, The lower surface of the separator is provided with a second mounting groove corresponding to the central hole. The upper surface of the support plate is fixed with a third limiting ring inserted into the second mounting groove on the circumferential side of the central hole. The lower part of the inner wall of the mounting hole is provided with an annular protrusion that communicates with the third limiting ring and the mounting hole. The annular protrusion separates the lower part of the mounting hole to form a second through groove and a second annular limiting groove surrounding the second through groove. The bottom ends of the atomizing outer tube and the tubular atomizing bracket are inserted into the second annular limiting groove. The bottom end of the annular oil storage cotton abuts against the top end of the annular protrusion.

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