Atomizing core and cartridge

Abstract

An atomizing core and a cartridge are provided. The atomizing core includes an atomizing surface and a seepage surface opposite to the atomizing surface. The seepage surface is recessed downward to form an e-liquid slot. A heating wire is disposed on the atomizing surface. The atomizing core is made of a porous ceramic material. The atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired. A part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot. The present disclosure effectively avoids a problem that the seepage of the e-liquid is insufficient in a case that the e-liquid is in a small amount.

What is claimed is: 
     
         1 . An atomizing core, comprising:
 an atomizing surface; and   a seepage surface opposite to the atomizing surface;   wherein the seepage surface is recessed downward to form an e-liquid slot, a heating wire is disposed on the atomizing surface, the atomizing core is made of a porous ceramic material, and the atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired; and   wherein a part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot.   
     
     
         2 . The atomizing core according to  claim 1 , wherein an e-liquid slot wall is disposed around a periphery of the e-liquid slot, a first inclined surface is formed on a side surface of the e-liquid slot wall facing the e-liquid slot, and the inclined surface disposed on the peripheral wall of the protruding column facing the e-liquid slot is a second inclined surface. 
     
     
         3 . The atomizing core according to  claim 2 , wherein a top surface of the protruding column is higher than a top surface of the e-liquid slot wall, an inclination of the second inclined surface is greater than an inclination of the first inclined surface, the e-liquid slot is communicated around a periphery of the second inclined surface of the protruding column, and a width of two longitudinal sides of the e-liquid slot is less than a width of two transverse sides of the e-liquid slot. 
     
     
         4 . A cartridge, comprising:
 a cartridge tube, provided with a flue and a liquid storage chamber;   a closure body, installed in the cartridge tube and closing the liquid storage chamber;   an atomizing core, installed in the closure body; and   a base, fixed with the cartridge tube;   wherein the closure body comprises:   a closure member; and   a sealing member, formed or sleeved on the closure member;   wherein the closure member comprises:   a closure end;   an accommodation end, extending downward from the closure end;   an e-liquid passage, running through the closure end and extending to the accommodation end;   an air passage, disposed separately from the e-liquid passage; and   a notch, defined in a middle of the accommodation end;   the sealing member comprises:   an atomizing core installation cavity, formed in the notch;   wherein the atomizing core is placed in the atomizing core installation cavity for fixation, a conductive column connected to a power supply is disposed on the base, the conductive column abuts against a lower surface of the atomizing core to provide support for the atomizing core, an upper portion of the base abuts against a lower portion of the accommodation end, and the base is fixed with the cartridge tube;   the atomizing core comprises:   a seepage surface, in communication with the liquid storage chamber through the e-liquid passage; and   an atomizing surface;   wherein the seepage surface is recessed downward to form an e-liquid slot, a heating wire is disposed on the atomizing surface, an atomizing chamber is disposed below the atomizing core, the atomizing core is made of a porous ceramic material, the atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired, a part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot.   
     
     
         5 . The cartridge according to  claim 4 , wherein an e-liquid slot wall is disposed around a periphery of the e-liquid slot, a first inclined surface is formed on a side surface of the e-liquid slot wall facing the e-liquid slot, the inclined surface disposed on the peripheral wall of the protruding column facing the e-liquid slot is a second inclined surface, a top surface of the protruding column is higher than a top surface of the e-liquid slot wall, and an inclination of the second inclined surface is greater than an inclination of the first inclined surface. 
     
     
         6 . The cartridge according to  claim 5 , wherein the e-liquid slot is communicated around a periphery of the second inclined surface of the protruding column, and a width of two longitudinal sides of the e-liquid slot is less than a width of two transverse sides of the e-liquid slot. 
     
     
         7 . The cartridge according to  claim 6 , wherein the cartridge tube comprises a tube body;
 wherein first snap-fit portions are disposed on two transverse sides of a bottom of the tube body, and second snap-fit portions that are in snap-fit with the first snap-fit portions are disposed on two transverse sides of the base.   
     
     
         8 . The cartridge according to  claim 7 , wherein the air passage comprises:
 a connection air passage, running through a top of the closure end;   a longitudinal air passage, running through the closure end and in communication with the connection air passage; and   an outer-side air passage, extending from an outer edge of the longitudinal air passage to the accommodation end;   the sealing member further comprises a third sealing portion formed at the closure end;   wherein the third sealing portion comprises:   a second sealing ring, formed at a periphery of the closure end; and   a third sealing ring, formed at an inner side of the connection air passage;   wherein the second sealing ring is clamped between an inner wall surface of the tube body and an outer side surface of the closure end, and the third sealing ring is clamped between an inner wall surface of the connection air passage and an outer side surface of a free end of the flue;   the sealing member further comprises:   a first sealing ring, formed at the accommodation end; and   a second sealing portion, integrally formed with the first sealing ring and the second sealing ring and extending along an outer side surface of the closure member;   a chamber wall on a longitudinal side of the atomizing core installation cavity corresponding to a lower part of the outer-side air passage is recessed to form a recessed channel;   a top of the recessed channel is recessed to form a through-hole;   wherein the atomizing chamber is in communication with the through-hole, the through-hole, the recessed channel, the outer-side air passage, the longitudinal air passage and the connection air passage constitute the air passage, and the second sealing portion independently seals the through-hole, the recessed channel, the outer-side air passage and the longitudinal air passage of the air passage, to prevent the air passage from being polluted when there is leakage of the e-liquid from the third sealing ring.   
     
     
         9 . The cartridge according to  claim 8 , wherein a stop portion is formed at a bottom of two longitudinal sides of the notch of the accommodation end, a step portion abutting against the e-liquid slot wall is formed above the stop portion, and a support wall surface is formed between the step portion and the stop portion;
 wherein the atomizing core installation cavity of the sealing member is at least partially formed on an inner side of the support wall surface and surrounds a periphery of the atomizing core.   
     
     
         10 . The cartridge according to  claim 9 , wherein balance air grooves and air gaps that communicate the liquid storage chamber with the atomizing chamber or the air passage are defined on two transverse sides of the closure body;
 wherein the balance air grooves are defined on a transverse outer side surface of the closure member, and the air gaps are defined on a transverse outer side surface of the sealing member.   
     
     
         11 . The cartridge according to  claim 10 , wherein the balance gas grooves comprise:
 a plurality of intercommunicated first gas grooves arranged in a vertical direction; and   a pair of second gas grooves and a pair of third gas grooves that are respectively in communication with the first gas grooves on upper and lower sides;   first air gaps in communication with the second gas grooves are respectively defined on two transverse sides of an upper end of the sealing member, and second air gaps in communication with the third gas grooves are respectively defined on two transverse sides of a lower end of the sealing member;   wherein the first air gaps are in communication with the liquid storage chamber, and the second air gaps are in communication with the air passage or the atomizing chamber.   
     
     
         12 . The cartridge according to  claim 11 , wherein depths and widths of the first air gaps and the second air gaps vary with a viscosity of the e-liquid; the depths and the widths are adaptively adjusted for smooth airflow, so as to maintain an air pressure balance in the liquid storage chamber, with no leakage of the e-liquid from the first air gaps and the second air gaps; the depths of the first air gaps and the second air gaps are between 0.05 mm to 0.1 mm; the widths of the first air gaps and the second air gaps are between 1 mm to 2 mm; and the depths and the widths of the first air gaps and the second air gaps are smaller after the closure body is inserted into the cartridge tube. 
     
     
         13 . A cartridge, comprising:
 a cartridge tube provided with a flue and a liquid storage chamber;   a closure body, installed in the cartridge tube and closing the liquid storage chamber;   an atomizing core, installed in the closure body; and   a base, fixed with the cartridge tube;   wherein the closure body comprises:   a closure member; and   a sealing member, formed or sleeved on the closure member;   wherein the closure member comprises:   a closure end;   an accommodation end, extending downward from the closure end;   an e-liquid passage, running through the closure end and extending to the accommodation end; and   an air passage, disposed separately from the e-liquid passage;   the sealing member comprises:   an atomizing core installation cavity, formed in the accommodation end; and   a sealing ring, formed at peripheries of the closure end and the accommodation end;   wherein the atomizing core is placed in the atomizing core installation cavity for fixation;   the atomizing core comprises:   a seepage surface, in communication with the liquid storage chamber through the e-liquid passage; and   an atomizing surface;   wherein an atomizing chamber is disposed below the atomizing surface; and   wherein balance air gaps are defined on transverse outer sides of the closure member, air gaps that are in communication with the balance air gaps in an up-down direction are respectively defined on transverse outer sides of the sealing ring, and the liquid storage chamber is in communication with the atomizing chamber or the air passage through the air gaps and the balance air grooves.   
     
     
         14 . The cartridge according to  claim 13 , wherein the balance gas grooves comprise:
 a plurality of intercommunicated first gas grooves arranged in a vertical direction; and   a pair of second gas grooves and a pair of third gas grooves that are respectively in communication with the first gas grooves on upper and lower sides;   first air gaps in communication with the second gas grooves are respectively defined on two transverse sides of an upper end of the sealing ring, and second air gaps in communication with the third gas grooves are respectively defined on two transverse sides of a lower end of the sealing member;   wherein the first air gaps are in communication with the liquid storage chamber, and the second air gaps are in communication with the air passage or the atomizing chamber.   
     
     
         15 . The cartridge according to  claim 14 , wherein depths and widths of the first air gaps and the second air gaps vary with a viscosity of the e-liquid, the depths and the widths are adaptively adjusted for smooth airflow, so as to maintain an air pressure balance in the liquid storage chamber, with no leakage of the e-liquid from the first air gaps and the second air gaps. 
     
     
         16 . The cartridge according to  claim 15 , wherein the depths of the first air gaps and the second air gaps are between 0.05 mm to 0.1 mm, the widths of the first air gaps and the second air gaps are between 1 mm to 2 mm, and the depths and the widths of the first air gaps and the second air gaps are smaller after the closure body is inserted into the cartridge tube. 
     
     
         17 . The cartridge according to  claim 16 , wherein the first air grooves comprise:
 a plurality of strip grooves, extending along a transverse outer side surface of the closure member; and   vertical grooves that each communicates two adjacent strip grooves at a transverse end;   wherein the vertical grooves are disposed in a staggered manner in a longitudinal direction, so that two adjacent vertical grooves are respectively located at two ends in the longitudinal direction.   
     
     
         18 . The cartridge according to  claim 13 , wherein the seepage surface of the atomizing core is recessed downward to form an e-liquid slot, a heating wire is disposed on the atomizing surface, the atomizing core is made of a porous ceramic material, the atomizing core is formed with a plurality of capillary hole structures from the seepage surface to the atomizing surface after the atomizing core is fired, a part of the e-liquid slot protrudes upward to form a protruding column, and an inclined surface is disposed on a peripheral wall of the protruding column facing the e-liquid slot. 
     
     
         19 . The cartridge according to  claim 18 , wherein an e-liquid slot wall is disposed around a periphery of the e-liquid slot, a first inclined surface is formed on a side surface of the e-liquid slot wall facing the e-liquid slot, the inclined surface disposed on the peripheral wall of the protruding column facing the e-liquid slot is a second inclined surface, a top surface of the protruding column is higher than a top surface of the e-liquid slot wall, an inclination of the second inclined surface is greater than an inclination of the first inclined surface, the e-liquid slot is communicated around a periphery of the second inclined surface of the protruding column, and a width of two longitudinal sides of the e-liquid slot is less than a width of two transverse sides of the e-liquid slot. 
     
     
         20 . The cartridge according to  claim 13 , wherein a notch is defined in a middle of the accommodation end of the closure member;
 a conductive column connected to a power supply is disposed on the base, the conductive column abuts against a lower surface of the atomizing core to provide support for the atomizing core, an upper portion of the base abuts against a lower portion of the accommodation end, and the base is fixed with the cartridge tube;   the cartridge tube comprises a tube body, wherein first snap-fit portions are disposed on two transverse sides of a bottom of the tube body;   second snap-fit portions that are in snap-fit with the first snap-fit portions are disposed on two transverse sides of the base;   the air passage comprises:   a connection air passage, running through a top of the closure end;   a longitudinal air passage, running through the closure end and in communication with the connection air passage; and   an outer-side air passage, extending from an outer edge of the longitudinal air passage to the accommodation end;   the sealing member further comprises a third sealing portion formed at the closure end;   wherein the third sealing portion comprises:   a second sealing ring, formed at a periphery of the closure end; and   a third sealing ring, formed on an inner side of the connection air passage;   wherein the second sealing ring is clamped between an inner wall surface of the tube body and an outer side surface of the closure end, and the third sealing ring is clamped between an inner wall surface of the connection air passage and an outer side surface of a free end of the flue;   the sealing member further comprises:   a first sealing ring, formed at the accommodation end; and   a second sealing portion, integrally formed with the first sealing ring and the second sealing ring and extending along an outer side surface of the closure member;   wherein a cavity wall on a longitudinal side of the atomizing core installation cavity corresponding to a lower part of the outer-side air passage is recessed to form a recessed channel; a through-hole is defined by running through a top of the recessed channel, the atomizing chamber is in communication with the through-hole; the through-hole, the recessed channel, the outer-side air passage, the longitudinal air passage and the connection air passage constitute the air passage; and the second sealing portion independently seals the through-hole, the recessed channel, the outer-side air passage and the longitudinal air passage of the air passage, to prevent the air passage from being polluted when there is leakage of the e-liquid from the third sealing ring.