Atomizer for preventing blockage of air flow channels

Abstract

The present invention discloses an atomizer for preventing blockage of an air flow channel, which is used to be connected to a battery rod to form an electronic atomization device. The atomizer includes a mouthpiece, an outer tube, an upper cover, a lower cover, a ventilation tube, a porous atomization core and a connection seat. The upper cover and the lower cover are respectively arranged at two ends of the outer tube. An air intake through hole that penetrates up and down is arranged in the mouthpiece, and the mouthpiece is connected and arranged at the upper end of the upper cover. The ventilation tube is arranged on one side inside the outer tube, and both ends thereof respectively penetrate through the upper cover and the lower cover. The cavity between the outer tube, the ventilation tube, the upper cover and the lower cover forms a liquid storage cavity. Two-level cavities including a first cavity and a second cavity are arranged upward at the lower end of the lower cover. The outer side wall of the upper part of the connection seat is sleeved on the inner wall of the first cavity. The porous atomization core is accommodated and installed in the second cavity. A throttling through hole is arranged above the second cavity to communicate the liquid storage cavity with the upper surface of the porous atomization core. The upper end surface of the connection seat is provided with an atomization cavity downward, and the lower surface of the porous atomization core is arranged above the atomization cavity. The ventilation tube communicates the air intake through hole and the atomization cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic atomization devices. More specifically, the present invention relates to an atomizer for preventing blockage of an air flow channel. Background Art

[0002] An electronic atomization device emits smoke for a user to use by heating an atomization liquid. An electronic atomization device generally includes a battery rod and an atomizer. A battery for supplying power to the atomizer is provided inside the battery rod. The atomizer includes a heating unit. When powered on, the heating unit can atomize a solution to be atomized, that is, an atomization liquid, into a vapor mist for the user to inhale. The atomization liquid includes e-cigarette liquid, medical liquid, etc. The electronic atomization device is specifically applied to e-cigarettes, medical drug atomization devices, etc. Its basic function is to provide heating and atomization functions, and convert a solution such as an atomization liquid or a medical liquid stored in the electronic atomization device into a vapor mist, aerosol, vapor, etc.

[0003] In existing electronic atomization devices, the material used as a liquid guide in the atomizer includes a porous ceramic material. An atomization core made of the existing porous ceramic material is generally made into a tubular shape. Its liquid absorption surface is provided on the outer wall, and the atomization surface is provided in the central through hole of the atomization core. The central through hole of the atomization core also serves as an air flow channel, and the air flow also flows out through this central through hole. When the viscosity of the atomization liquid used is relatively high, after the atomizer stops working, the atomization liquid slowly oozes out from the atomization surface and is likely to condense on the inner wall of the central through hole of the atomization core, reducing the flow area of the central through hole and even causing blockage. When the atomizer works next time, the air flow cannot be smoothly sucked out from the central through hole or the air flow channel, resulting in an extremely bad user experience for the user. Summary of the Invention

[0004] The purpose of the present invention is to provide an atomizer for preventing blockage of an air flow channel, which can avoid blockage of the air flow through hole.

[0005] The technical solution of the present invention is implemented as follows: The atomizer for preventing blockage of the air flow channel is used to connect to a battery rod to form an electronic atomization device. The special features are as follows: It includes a mouthpiece, an outer tube, an upper cover, a lower cover, a ventilation tube, a porous atomization core, and a connection seat. The upper cover and the lower cover are respectively provided at both ends of the outer tube. The mouthpiece is provided with an air intake through hole that penetrates up and down. The mouthpiece is connected and provided at the upper end of the upper cover. The ventilation tube is provided on one side inside the outer tube, and both ends respectively penetrate through the upper cover and the lower cover. The cavity between the outer tube, the ventilation tube, the upper cover, and the lower cover forms a liquid storage cavity for storing atomization liquid. The lower end of the lower cover is provided with two-stage cavities upwards, including a first cavity and a second cavity. The outer side wall of the upper part of the connection seat is sleeved on the inner wall of the first cavity. The porous atomization core is accommodated and installed in the second cavity. Above the second cavity, there is a throttling through hole connecting the liquid storage cavity and the upper surface of the porous atomization core. The upper end surface of the connection seat is provided with an atomization cavity downwards. The lower surface of the porous atomization core is provided above the atomization cavity. The ventilation tube connects the air intake through hole and the atomization cavity.

[0006] Preferably, an atomization core sealing sleeve is provided on the outer side wall of the porous atomization core to seal the gap between the porous atomization core and the inner wall of the second cavity.

[0007] Preferably, a shoulder is provided in the middle of the outer side wall of the upper cover. The outer side wall of the upper cover above the shoulder is connected to the inner wall of the lower end of the mouthpiece. The outer side wall of the upper cover below the shoulder is sleeved with a first sealing ring and then connected to the inner wall of the upper end of the outer tube.

[0008] Preferably, the upper cover is also provided with a liquid injection through hole that penetrates up and down. A pluggable plug is provided in the liquid injection through hole to block the liquid injection through hole.

[0009] Preferably, the lower cover is integrally sleeved on the inner wall of the lower part of the outer tube, and an O-shaped sealing ring is provided between the lower cover and the outer tube.

[0010] Preferably, the porous atomization core includes a porous body and a heating resistor. A liquid storage groove is provided on the upper end surface of the porous body facing downwards. The heating resistor is provided on the lower end surface of the porous body, and electrode pins are respectively connected to both ends of the heating resistor.

[0011] Preferably, the upper part of the connection seat includes stepped upper and lower two-stage outer side walls. The outer diameter of the upper-stage outer side wall is smaller than the outer diameter of the lower-stage outer side wall. The upper-stage outer side wall is sleeved on the inner wall of the first cavity of the lower cover. A vertical annular groove is provided downwards between the upper-stage outer side wall and the lower-stage outer side wall. A second sealing ring is provided on the vertical annular groove to seal the gap between the upper-stage outer side wall and the inner wall of the lower end of the outer tube. The lower-stage outer side wall of the connection seat is provided with a first air intake hole communicating with the atomization cavity.

[0012] Preferably, a connecting pipe with a reduced outer diameter is provided at the lower part of the connecting seat, and a connecting thread is provided on the outer side wall of the connecting pipe for threaded connection with the battery rod.

[0013] Preferably, a tubular electrode is sleeved inside the connecting pipe. An electrode through hole is provided inside the tubular electrode. An insulating ring is provided between the tubular electrode and the connecting pipe. The upper end surface of the tubular electrode is closed, and a second air inlet communicating with the electrode through hole is provided on the upper side surface.

[0014] Preferably, the outer tube is made of a transparent material to observe the remaining amount of the atomizing liquid in the liquid storage cavity. The porous body atomizing core includes a porous body made of a porous ceramic material.

[0015] The beneficial effect of the atomizer for preventing blockage of the air flow channel in the present invention is as follows: The atomizer is provided with a porous body atomizing core and a ventilation pipe. The atomizing cavity is arranged at the lower part of the porous body atomizing core. The porous body atomizing core is not provided with a central through hole in the middle. A liquid storage groove is provided on it, and the lower surface is set as an atomizing surface. The atomizing liquid seeps downward from the liquid storage groove to the lower surface and is atomized in the atomizing cavity. The atomized misty air flow flows upward through the ventilation pipe and flows out. With this structure, when using an atomizing liquid with a relatively high viscosity, even if the atomizing liquid slowly seeps out from the atomizing surface and causes condensation, it will not block the ventilation pipe. In addition, the first air inlet of the connecting seat and the second air inlet of the tubular electrode are both at a certain distance from the bottom of the atomizing cavity, so as to prevent the atomizing liquid dripping to the bottom of the atomizing cavity from flowing into and condensing on the first air inlet and the second air inlet. In this way, the phenomenon that the air flow channel is easily blocked is avoided, and the user experience is greatly improved. Description of the Drawings

[0016] Figure 1 is an exploded structure diagram of the atomizer according to an embodiment of the present invention;

[0017] Figure 2 is a front view of the atomizer according to an embodiment of the present invention;

[0018] Figure 3 is Figure 2 a side A-A cross-sectional view of the atomizer according to an embodiment of the present invention in

[0019] Figure 4 is a side view of the atomizer according to an embodiment of the present invention;

[0020] Figure 5 is Figure 4 a front B-B cross-sectional view of the atomizer according to an embodiment of the present invention in

[0021] Figure 6 is a front view of the upper cover according to an embodiment of the present invention;

[0022] Figure 7 is a three-dimensional view of the upper cover according to an embodiment of the present invention;

[0023] Figure 8 Cross-section of the lower cover according to an embodiment of the present invention Figure 1 ;

[0024] Figure 9 Cross-section of the lower cover according to an embodiment of the present invention Figure 2 ;

[0025] Figure 10 Stereoscopic view of the lower cover according to an embodiment of the present invention;

[0026] Figure 11 Stereoscopic view of the porous atomization core according to an embodiment of the present invention;

[0027] Figure 12 Bottom view of the porous atomization core according to an embodiment of the present invention;

[0028] Figure 13 Stereoscopic view of the connection base according to an embodiment of the present invention;

[0029] Figure 14 Stereoscopic view of the tubular electrode according to an embodiment of the present invention.

[0030] Among them, the main component symbols are explained as follows:

[0031] 1. Mouthpiece; 10. Air intake through hole; 2. Outer tube; 3. Upper cover; 30. Shoulder; 31. Liquid injection through hole; 32. Plug; 33. Upper cover through hole; 4. Lower cover; 401. First cavity; 402. Second cavity; 41. Throttle through hole; 42. Lower cover through hole; 43. Transverse annular groove; 44. O-ring seal; 5. Vent pipe; 6. Porous atomization core; 60. Atomization core seal sleeve; 61. Porous body; 610. Liquid storage tank; 62. Heating resistor; 63. Electrode pin; 7. Connection base; 70. Atomization cavity; 71. Upper stage outer side wall; 72. Lower stage outer side wall; 720. First air intake hole; 73. Vertical annular groove; 74. Second sealing ring; 75. Connection pipe; 76. Tubular electrode; 760. Second air intake hole; 761. Flange; 762. Convex ring; 763. Electrode through hole; 77. Insulating ring; 8. Liquid storage cavity. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] The atomizer of the present invention for preventing blockage of the air flow channel, for the convenience of the following description, such as Figure 2As shown, the atomizer nozzle for preventing the air flow channel from being blocked is placed vertically with the nozzle facing upwards. Descriptions such as "upper, lower, upper part, lower part, upper end, lower end, upper surface, lower surface" of each component described in this article refer to the vertical position relationship when the atomizer nozzle for preventing the air flow channel from being blocked is placed vertically with the nozzle facing upwards.

[0034] The atomizer of the present invention for preventing the air flow channel from being blocked can be connected to a battery rod to form a complete electronic atomization device.

[0035] Embodiment

[0036] As Figure 1 shown, an atomizer of the present invention for preventing the air flow channel from being blocked includes a nozzle 1, an outer tube 2, an upper cover 3, a lower cover 4, a ventilation tube 5, a porous body atomization core 6, and a connection seat 7.

[0037] As Figure 2 、 Figure 3 shown, the upper cover 3 and the lower cover 4 are respectively provided at both ends of the outer tube 2. An air intake through hole 10 that penetrates up and down is provided inside the nozzle 1. The nozzle 1 is connected to the upper end of the upper cover 3. The ventilation tube 5 is provided on one side inside the outer tube 2 and its two ends respectively penetrate through the upper cover 3 and the lower cover 4. The cavity between the outer tube 2, the ventilation tube 5, the upper cover 3, and the lower cover 4 forms a liquid storage cavity 8 for storing atomization liquid.

[0038] As Figures 2 - 5 shown, a shoulder 30 is provided in the middle of the outer side wall of the upper cover 3. The outer side wall of the upper cover above the shoulder 30 is connected to the inner wall of the lower end of the nozzle 1. The outer side wall of the upper cover below the shoulder 30 is sleeved with a first sealing ring 34 and then connected to the inner wall of the upper end of the outer tube 2. The upper cover 3 is also provided with a liquid injection through hole 31 that penetrates up and down. The liquid injection through hole 31 is used to inject atomization liquid after assembly, or to re-inject atomization liquid after it is consumed. A pluggable plug 32 is provided in the liquid injection through hole 31 to block the liquid injection through hole 31. An upper cover through hole 33 is also provided beside the liquid injection through hole 31 on the upper cover 3. The upper cover through hole 33 is used to insert and connect the upper end of the ventilation tube 5.

[0039] As Figure 2 、 Figure 3 、 Figures 6 - 8As shown, two levels of cavities are provided upward at the lower end of the lower cover 4, including a first cavity 401 and a second cavity 402. The outer side wall of the upper part of the connecting seat 7 is sleeved on the inner wall of the first cavity 401. The porous atomization core 6 is accommodated and installed in the second cavity 402. An atomization core sealing sleeve 60 is provided on the outer side wall of the porous atomization core 6 to seal the gap between the porous atomization core 6 and the inner wall of the second cavity 402. Above the second cavity 402, a throttling through-hole 41 is provided to connect the liquid storage cavity 8 and the upper surface of the porous atomization core 6. The upper end of the connecting seat 7 is connected to the lower end of the lower cover 4 and the lower end of the outer tube 2. The upper end surface of the connecting seat 7 is provided with an atomization cavity 70 downward. The lower surface of the porous atomization core 6 is located above the atomization cavity 70. The ventilation tube 5 communicates the air intake through-hole 10 and the atomization cavity 70.

[0040] On the other side of the second cavity 402 of the lower cover 4, a lower cover through-hole 42 is provided to communicate with the first cavity 401. The lower cover through-hole 42 is used to insert and connect the lower end of the ventilation tube 5. A transverse annular groove 43 is further provided on the outer side wall of the lower cover. An O-ring seal 44 is provided in the transverse annular groove 43. The outer side wall of the lower cover 4 is integrally sleeved on the lower inner wall of the outer tube 2. The O-ring seal 44 seals the gap between the lower cover 4 and the outer tube 2.

[0041] As Figure 9 、 Figure 10 shown, the porous atomization core 6 includes a porous body 61 and a heating resistor 62. The upper end surface of the porous body 61 is provided with a liquid storage groove 610 downward. The heating resistor 62 is arranged on the lower end surface of the porous body 61. Electrode pins 63 are respectively connected to both ends of the heating resistor 62. The porous body 61 of the present invention is made of porous ceramic, and the porous atomization core 6 is a porous ceramic atomization core. The porous ceramic has a microporous structure and can adsorb, conduct, and permeate the atomization liquid. The microporous structure in the porous body can enable the atomization liquid in the liquid storage groove 610 to permeate and conduct to the lower end surface of the porous body 61 for heating and atomization by the heating resistor 62.

[0042] As Figure 2 、 Figure 3 、 Figure 11As shown, the upper part of the connection base 7 includes two stepped outer side walls at the upper and lower levels. The outer diameter of the upper-level outer side wall 71 is smaller than that of the lower-level outer side wall 72. The upper-level outer side wall 71 is sleeved on the inner wall of the first cavity 401 of the lower cover. A vertical annular groove 73 is provided downward between the upper-level outer side wall 71 and the lower-level outer side wall 72. A second sealing ring 74 is provided on the vertical annular groove 73 to seal the gap between the upper-level outer side wall 71 and the inner wall of the lower end of the outer tube 2. The lower part of the connection base 7 is provided with a connecting tube 75 with a reduced outer diameter. A connecting thread is provided on the outer side wall of the connecting tube 75 for threaded connection with the battery rod. A first air inlet hole 720 is horizontally provided on the lower-level outer side wall 72 of the connection base 7 and communicates with the atomization chamber 70. There is a height difference between the first air inlet hole 720 and the bottom of the atomization chamber 70 to prevent the atomized liquid dripping to the bottom of the atomization chamber 70 from flowing into the first air inlet hole 720. It is easy for the thicker atomized liquid to flow into the first air inlet hole 720 and cause blockage.

[0043] As Figure 2 , Figure 3 , Figure 11 As shown, a tubular electrode 76 is sleeved inside the connecting tube 75. The tubular electrode is used to connect one of the electrode pins 63, and the connection base 7 connects the other electrode pin 63. An electrode through hole 763 is provided inside the tubular electrode. An insulating ring 77 is provided between the tubular electrode 76 and the connecting tube 75. The upper end surface of the tubular electrode 76 is closed and a second air inlet hole 760 communicating with the electrode through hole 763 is provided on the upper side surface. The electrode through hole 763 leads from the bottom to the second air inlet hole 760. The upper end surface of the tubular electrode 76 is closed, which can prevent the atomized liquid leaking from the porous atomization core 6 in the upper part of the atomization chamber from dripping down and falling into the electrode through hole 763 of the tubular electrode 76. It is easy for the thicker atomized liquid to cause blockage of the electrode through hole 763, making the airflow sensor unable to sense the inhalation airflow. The second air inlet hole 760 is provided on the upper side surface of the tubular electrode 76 and has a relatively high distance from the bottom of the atomization chamber 70 to prevent the atomized liquid dripping to the bottom of the atomization chamber 70 from flowing into the electrode through hole 763 inside the tubular electrode 76 through the second air inlet hole 760. It is easy for the thicker atomized liquid to cause blockage of the electrode through hole. A flange 761 is provided at the bottom end of the tubular electrode 76 and a convex ring 762 is provided on the outer side wall of the tubular electrode. The flange 761 and the convex ring 762 are used to clamp the insulating ring 77 and fix it inside the connecting tube 75.

[0044] As Figures 1 - 3 As shown, the outer tube is made of a transparent material to facilitate observing the remaining amount of the atomized liquid in the liquid storage chamber.

[0045] As Figure 2As shown, in the atomizer for preventing the blockage of the air flow channel according to the embodiment of the present invention, when it works, due to the suction at the mouthpiece, the external gas flows into the atomization chamber 70 from the first air inlet hole 720. At this time, the atomization liquid flows downward from the liquid storage chamber 8 to the liquid storage groove 610 of the porous atomization core, and then penetrates to the atomization surface at the bottom of the porous atomization core 6, and is atomized into aerosol by the heating resistor 62 and dissipated in the atomization chamber 70. The aerosol flows upward with the entering external gas through the air pipe 5 and the suction through hole 10 and is sucked into the user's mouth. When the user sucks at the mouthpiece, a negative pressure is simultaneously generated in the tubular electrode 76, and the air flow flows upward from the bottom of the electrode through hole 763 of the tubular electrode 76 and flows into the atomization chamber 70 through the second air inlet hole 760. The tubular electrode 76 is connected to the battery rod, and its electrode through hole 763 is also communicated with the induction through hole in the battery rod, so that the air flow sensor or the air pressure sensor communicating with the induction through hole is triggered to start the heating resistor 62 to work. The continuous arrows in the figure show the direction of the air flow when the atomizer works. The atomizer of the present invention is provided with a porous atomization core and an air pipe. The atomization chamber is arranged below the porous atomization core. The porous atomization core is not provided with a central through hole in the middle, and a liquid storage groove is arranged on it, and the lower surface is set as the atomization surface. The atomization liquid penetrates downward from the liquid storage groove to the lower surface and is atomized in the atomization chamber. The atomized aerosol flows upward and flows out through the air pipe. With the above structure of the atomizer of the present invention, when using an atomization liquid with a relatively high viscosity, even if the atomization liquid slowly oozes out from the atomization surface and causes condensation, it will not block the air pipe, avoiding the phenomenon that the air flow channel is easily blocked.

[0046] The above description is only the preferred embodiment of the present invention, and the above specific embodiments are not limitations on the present invention. Within the scope of the technical idea of the present invention, various deformations and modifications can occur. Any retouching, modification or equivalent replacement made by those of ordinary skill in the art according to the above description shall fall within the scope protected by the present invention.

Claims

1. An atomizer for preventing blockage of an air flow channel, which is used to be connected to a battery rod to form an electronic atomization device, and is characterized in that: It includes a suction nozzle, an outer tube, an upper cover, a lower cover, a ventilation tube, a porous atomization core and a connection seat. The upper cover and the lower cover are respectively arranged at both ends of the outer tube. The suction nozzle is provided with an air intake through hole that penetrates up and down. The suction nozzle is connected and arranged at the upper end of the upper cover. The ventilation tube is arranged on one side inside the outer tube and its two ends respectively penetrate through the upper cover and the lower cover. The cavity between the outer tube, the ventilation tube, the upper cover and the lower cover forms a liquid storage cavity for storing atomization liquid. The lower end of the lower cover is provided with two-level cavities upwards, including a first cavity and a second cavity. The outer side wall of the upper part of the connection seat is sleeved on the inner wall of the first cavity. The porous atomization core is accommodated and installed in the second cavity. A throttling through hole is provided above the second cavity to connect the liquid storage cavity and the upper surface of the porous atomization core. The upper end surface of the connection seat is provided with an atomization cavity downwards. The lower surface of the porous atomization core is arranged above the atomization cavity. The ventilation tube connects the air intake through hole and the atomization cavity; The porous atomization core includes a porous body and a heating resistor. A liquid storage groove is provided on the upper end surface of the porous body facing downwards. The heating resistor is arranged on the lower end surface of the porous body. Electrode pins are respectively connected to both ends of the heating resistor; The lower part of the connection seat is provided with a connection tube with a reduced outer diameter. A connection thread is provided on the outer side wall of the connection tube for threaded connection with the battery rod; A tubular electrode is sleeved inside the connection tube. An electrode through hole is provided inside the tubular electrode. An insulating ring is provided between the tubular electrode and the connection tube. The upper end surface of the tubular electrode is closed and a second air intake hole communicating with the electrode through hole is provided on the upper side surface; 2. The atomizer for preventing blockage of the air flow channel according to claim 1, wherein: An atomization core sealing sleeve is provided on the outer side wall of the porous atomization core to seal the gap between the porous atomization core and the inner wall of the second cavity; 3. The atomizer for preventing blockage of the air flow channel according to claim 1, wherein: A shoulder is provided in the middle of the outer side wall of the upper cover. The outer side wall of the upper cover above the shoulder is connected to the inner wall of the lower end of the suction nozzle. The outer side wall of the upper cover below the shoulder is sleeved with a first sealing ring and then connected to the inner wall of the upper end of the outer tube; 4. The atomizer for preventing blockage of the air flow channel according to claim 1, wherein: The upper cover is also provided with a liquid injection through hole that penetrates up and down. A pluggable plug is provided in the liquid injection through hole to block the liquid injection through hole; 5. The atomizer for preventing blockage of the air flow channel according to claim 1, wherein: The lower cover is integrally sleeved on the inner wall of the lower part of the outer tube. An O-shaped sealing ring is provided between the lower cover and the outer tube; 6. The atomizer for preventing blockage of the air flow channel according to claim 1, wherein: The upper part of the connection seat includes stepped upper and lower two-level outer side walls. The outer diameter of the upper-level outer side wall is smaller than that of the lower-level outer side wall. The upper-level outer side wall is sleeved on the inner wall of the first cavity of the lower cover. A vertical annular groove is provided downwards between the upper-level outer side wall and the lower-level outer side wall. A second sealing ring is provided on the vertical annular groove to seal the gap between the upper-level outer side wall and the inner wall of the lower end of the outer tube. A first air intake hole communicating with the atomization cavity is provided on the lower-level outer side wall of the connection seat; 7. The atomizer for preventing blockage of the air flow channel according to claim 1, wherein: The outer tube is made of a transparent material to observe the remaining amount of atomization liquid in the liquid storage cavity. The porous atomization core includes a porous body made of porous ceramic material.

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