Heating components and cartridges

Abstract

A heating component, comprising a closure, an atomizer core, and a seal sleeved on the atomizer core and clamped between the atomizer core and the closure, the closure comprising a main body, an oil passage and an air passage opened on the main body and independent of each other, a receiving chamber arranged under the oil passage and connected to the oil passage, and a partial atomization chamber located below the receiving chamber, the atomizer core comprising a liquid seepage surface connected to the oil passage and an atomization surface connected to the atomization chamber, the seal comprising a wrapping portion tightly attached to the receiving portion, the wrapping portion comprising a wrapping wall clamped between the inner wall of the receiving chamber and the side of the atomizer core, and a covering portion extending integrally from the wrapping wall and tightly attached to the outer edge of the liquid seepage surface, the wrapping wall being provided with at least one balancing air groove connected to the atomization chamber on the side facing the atomizer core. The present application also comprises a cigarette cartridge.

Description

Technical Field

[0001] The present invention relates to the field of electronic cigarettes, and in particular to a heating component and a cigarette cartridge. Background Art

[0002] Patent application No. 201811033876.0 of the People's Republic of China discloses an atomizer and an electronic cigarette, which includes a cartridge tube provided with an oil storage chamber and an air pipe, a heating component installed in the cartridge tube and sealing the oil storage chamber, an atomizer core placed under the heating component, and a base buckled into the cartridge tube and located under the heating component. The heating component includes a hard plastic part and a sealing part sleeved on the corresponding part of the hard plastic part. The bottom of the heating component is recessed upward to form an installation chamber for accommodating the atomizer core, an oil passage that runs through from top to bottom to connect the upper surface of the atomizer core in the installation chamber with the oil storage chamber, and an air passage that connects the air pipe to the atomizer chamber below the atomizer core. The sealing part seals the joint between the oil storage chamber and the hard plastic part, the joint between the air pipe and the air passage, and the joint between the atomizer core and the hard plastic part.

[0003] The base includes an insulating body and an elastic pin (Pogo Pin) assembled or molded in the insulating body. There is a gap in the middle between the insulating body and the heating component to form an atomization chamber. The elastic pin is generally fixed in the insulating body by assembly or injection molding. The top of the elastic pin contacts the electrode at the bottom of the atomization core, and the bottom of the elastic pin is exposed from the bottom surface of the insulating body and connected to the battery of the cigarette rod. The elastic pin is generally not able to be connected to the material, and cannot be automatically connected to the material. The elastic pin needs to be manually placed in the mold and then injection molded. This solution has low production efficiency, is prone to errors, and may easily lead to production safety accidents.

[0004] At the same time, Patent Application No. 201811033876.0 of the People's Republic of China discloses a technical solution for maintaining the air pressure balance of the oil storage chamber, which maintains the air pressure balance inside and outside the oil storage chamber by opening an air guide channel on the side of the first sealing member close to the atomizer core. However, although the gap of the air guide channel is very small, it may still cause a great risk of oil leakage. Summary of the invention

[0005] Based on this, the present invention provides a heating component and a cigarette cartridge, which have the performance of maintaining the air pressure balance inside and outside the oil storage chamber and preventing oil leakage.

[0006] In order to solve the above technical problems, the present application provides a heating component, including a sealing member, an atomizer core and a sealing member sleeved on the atomizer core and clamped between the atomizer core and the sealing member, wherein the sealing member includes a main body, an oil passage and an air passage opened on the main body and independent of each other, a receiving chamber arranged under the oil passage and communicating with the oil passage, and a partial atomizing chamber located below the receiving chamber, wherein the atomizer core includes a liquid seepage surface communicating with the oil passage and an atomizing surface communicating with the atomizing chamber, and wherein the sealing member includes a wrapping portion closely attached to the receiving chamber, wherein the wrapping portion includes a wrapping wall clamped between the inner wall surface of the receiving chamber and the side surface of the atomizer core and a covering portion integrally extending from the wrapping wall and closely attached to the outer edge of the liquid seepage surface, wherein the wrapping wall is provided with at least one balancing air groove communicating with the atomizing chamber on the side surface facing the atomizer core, wherein when the oil passage is at a predetermined negative pressure value, the external air pressure from the balancing air groove causes the covering portion corresponding to the balancing air groove to open and allows external air to enter the space of the oil passage to achieve air pressure balance.

[0007] Preferably, the lateral sides of the top of the accommodating cavity are connected to the oil channel, the opening size of the top of the accommodating cavity is smaller than the size of the accommodating cavity and a peripheral top wall is formed on the periphery of the top of the accommodating cavity, the covering portion is at least partially clamped between the peripheral top wall and the seepage surface, and the covering portion and the seepage surface are interference fit.

[0008] Preferably, the covering position of the covering portion and the liquid seepage surface is not suppressed by the peripheral top wall on the side close to the balancing gas groove.

[0009] Preferably, the atomizer core further comprises a porous body, extension walls extending upward from both longitudinal sides of the porous body, and a transverse groove formed between a pair of the extension walls, and both ends of the transverse groove are connected to the oil channel to allow the smoke oil to enter the transverse groove.

[0010] Preferably, the wrapping portion further comprises fins extending downward from the covering portions on both lateral sides and pressed onto the bottom surface of the lateral through groove, and the balancing air grooves are arranged on the wrapping walls on both lateral sides and correspond to the positions of the fins.

[0011] Preferably, the fin includes a fin body pressed downward on the bottom surface of the transverse groove and a fin longitudinal wall connecting the fin body and the wrapping wall as a whole, and the covering part, the wrapping wall, the fin body and the fin longitudinal wall are arranged to form a cavity with a bottom opening, and the cavity is connected to the balancing air groove.

[0012] Preferably, the thickness of the fin body is smaller than the thickness of the longitudinal wall of the fin, the thickness of the fin body is between 0.15-0.3 mm, the height is between 0.6-1.3 mm, and the longitudinal width is between 0.9-1.5 mm; the longitudinal width of the cavity is greater than the depth of the balancing air groove.

[0013] Preferably, after the wrapping portion is clamped by the atomizer core and the accommodating cavity, the depth of the balancing gas groove is less than 0.2 mm.

[0014] Preferably, the closure member also includes a main body, which includes a connecting portion located at the upper end, a accommodating portion extending downward from the connecting portion, and a cavity portion extending downward from the accommodating portion, the atomization chamber is formed in the hollow inner cavity of the cavity portion, the accommodating chamber is opened in the accommodating portion and is located above the atomization chamber, the oil channel opens downward from the two lateral sides of the top of the connecting portion and is connected to the accommodating chamber, the air channel includes a first air channel opened downward from the middle of the top of the connecting portion, a second air channel penetrating the connecting portion in the longitudinal direction and connected to the first air channel, a third air channel recessed from the longitudinal sides of the accommodating portion and connected to the second air channel, and a fourth air channel formed by openings on the longitudinal sides of the cavity portion to connect the third air channel and the atomization chamber.

[0015] Preferably, the seal is integrally formed on the closure, and the seal also includes an upper sealing portion formed and wrapped around the connecting portion, a lower sealing portion formed and wrapped around the cavity portion, and a connecting portion formed on the longitudinal wall surface of the main body portion along the lateral sides of the second to fourth air passages, and the wrapping portion is connected to the lateral sides of the lower sealing portion.

[0016] Preferably, the upper sealing portion wraps around the outer peripheral wall surface of the connecting portion and the inner wall surface of the first air channel, the lower sealing portion wraps around the outer peripheral wall surface of the cavity portion and part of the inner wall surface of the atomization cavity, and the wrapping portion extends from the lower sealing portion on the inner wall surface of the atomization cavity to the accommodating cavity.

[0017] Preferably, the size of the atomizing chamber is larger than that of the accommodating chamber and a step portion is formed on both lateral sides of the top of the atomizing chamber, the step portion is provided with an embedding hole upward, and a bump protrudes downward from the bottom surface of the cavity portion; the lower sealing portion of the sealing member is provided with an embedding hole, a bump nested with the bump of the closure member, and an embedding hole.

[0018] In order to solve the above-mentioned technical problems, the present application also provides a cigarette cartridge, including the above-mentioned heating component, a tube body for the heating component to be sleeved inside, and a base that is buckled upward into the tube body and locks the heating component. The atomization core also includes a heating wire arranged on the atomization surface, the heating wire includes a heating wire body and a first and a second electrode connected to both sides of the heating wire body, the base includes an insulating seat body and an elastic terminal integrally injection molded on the insulating seat body, the elastic terminal includes a contact portion exposed to the bottom surface of the insulating seat body and an elastic arm that upwardly supports and electrically contacts the first and the second electrodes of the atomization core.

[0019] Preferably, the insulating seat body includes a base, a first step extending upward from the base, a second step extending upward from the first step, and a recessed portion recessed downward from the middle of the second step, the upper portion of the recessed portion constitutes a part of the atomization chamber, and the top of the insulating seat body at least partially supports the bottom surface of the cavity portion of the heating component.

[0020] Preferably, the elastic terminal also includes a bending portion formed by bending upward and extending from the lateral inner side of the contact portion and a supporting portion formed by bending inward horizontally and extending from the bending portion, and the elastic arm is formed by bending upward and extending from one longitudinal side of the supporting portion. The elastic arm includes a vertical arm portion formed by bending upward and extending from one longitudinal side of the supporting portion, a bending arm portion formed by bending first along a first longitudinal direction and then bending and extending along a second longitudinal direction from the vertical arm portion, a hook portion formed by bending downward from the free end of the bending arm portion, and a contact portion formed at the top of the bending arm portion and electrically contacting the first and second electrodes.

[0021] The heating component and the cigarette cartridge of the present application are provided with a balancing air groove connected to the atomization chamber on the wrapping wall of the sealing component, and the covering part above the balancing air groove is completely pressed on the liquid seepage surface of the atomization core. When the negative pressure in the liquid storage chamber reaches a certain value, the covering part is prompted to open to allow air to enter the liquid storage chamber from the atomization chamber along the balancing air groove and the opened covering part to achieve air pressure balance in the liquid storage chamber. At the same time, when the liquid storage chamber is in a non-negative pressure state, the covering part is tightly attached to the liquid seepage surface of the atomization core, which can effectively prevent oil leakage.

[0022] In addition, the seal and the closure are integrally injection molded, so that the seal and the closure are tightly combined, and a tighter combination is achieved through mutually nested protrusions and embedding holes, preventing the seal from cracking from the closure, thereby avoiding the problem of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the cigarette cartridge of this application;

[0024] Figure 2 This is a three-dimensional exploded view of the cigarette cartridge of this application;

[0025] Figure 3 The cigarette cartridge tube edge of the cigarette cartridge of this application Figure 1 A cross-sectional view taken along the dashed line AA shown;

[0026] Figure 4 A three-dimensional diagram of the heating component of the cigarette cartridge of the present application;

[0027] Figure 5 A three-dimensional diagram of the atomizer core of the cigarette cartridge of the present application;

[0028] Figure 6 A three-dimensional view of the atomizer core of the cigarette cartridge of the present application from another angle;

[0029] Figure 7 A three-dimensional diagram of the base of the cigarette cartridge of the present application;

[0030] Figure 8 A three-dimensional view of the base of the cigarette cartridge of the present application from another angle;

[0031] Fig. 9 A three-dimensional diagram of the elastic terminal of the cigarette cartridge base of the present application;

[0032] Fig.10 For this application, the cigarette cartridge Figure 1 A cross-sectional view shown along the dashed line AA;

[0033] Figures 11 to 18 This is a drawing of Embodiment 1 of the heating component of the present application;

[0034] Fig.11 A three-dimensional diagram of the heating element of the present application from another angle;

[0035] Fig.12 This is a three-dimensional exploded view of the heating component of this application;

[0036] Fig.13 This is a three-dimensional exploded view of the heating element of the present application from another angle;

[0037] Fig.14 for Fig.13 A partial enlarged view of the dotted circle shown;

[0038] Fig.15 For along Fig.11 A cross-sectional view taken along the dashed line BB shown;

[0039] Fig.16 for Fig.15 A partial enlarged view of the dotted circle shown;

[0040] Fig.17 For along Fig.11 A cross-sectional view of the CC dashed line shown;

[0041] Fig.18 for Fig.17 A partial enlarged view of the dotted circle shown;

[0042] Figures 19 to 21 This is a drawing of Embodiment 2 of the heating component of the cigarette cartridge of the present application;

[0043] Fig.19 This is a cross-sectional view of the second embodiment of the heating component of the present application;

[0044] Fig. 20 for Fig.19 A partial enlarged view of the dotted circle shown;

[0045] Fig.21 This is a three-dimensional diagram of the sealing component of the second embodiment of the heating component of the present application.

[0046] Figure ID:

[0047] The cigarette cartridge tube-10; the tube body-11; the upper tube body-111; the lower tube body-112; the liquid storage chamber-12; the flue-13; the flue tube-131; the insertion part-132; the smoke hole-133; the suction port-134; the first buckle part-14; the rubber plug-20; the atomizing core-30; the porous body-31; the transverse groove-32; the heating wire-33; the first electrode-331; the second electrode-332; the heating wire body -333; extension wall-34; liquid seepage surface-36; atomization surface-35; closure member-40; main body-41; connecting portion-411; accommodating portion-412; cavity portion-413; protrusion-414, 75; embedding hole-415, 721; oil channel-42; air channel-43; first air channel-431; second air channel-432; third air channel-433; fourth air channel-434; atomization cavity-44; Peripheral top wall-451; accommodating cavity-45; step portion-46; base-A; insulating seat body-50; base-51; first step-52; second step-53; recessed portion-54; air hole-55; second buckle portion-56; groove-57; first positioning hole-571; elastic terminal-60; contact portion-61; bending portion-62; supporting portion-63; elastic arm-64; vertical arm portion-641; Bending arm portion-642; undercut portion-643; contact portion-644; material connecting portion-65; sealing member-70; upper sealing portion-71; lower sealing portion-72; connecting portion-73; wrapping portion-74; wrapping wall-741; atomizer core mounting cavity-742; covering portion-743; fin-744; fin body-7441; fin longitudinal wall-7442; cavity-7443; balancing air groove-745. DETAILED DESCRIPTION

[0048] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0051] This application is Figure 1 The X direction is the left-right direction (lateral direction), the Y direction is the front-back direction (longitudinal direction), and the Z direction is the up-down direction (vertical direction).

[0052] See also Figures 1 to 4 As shown, the cigarette cartridge of the present application includes a cigarette cartridge tube 10 provided with a smoke channel 13 and a liquid storage chamber 12 , a heating component installed in the cigarette cartridge tube 10 and sealing the liquid storage chamber 12 , and a base A fixed to the cigarette cartridge tube 10 .

[0053] The smoke bomb tube 10 includes a tube body 11, a liquid storage cavity 12 located in the tube body 11, a flue 13 provided in the tube body 11 and penetrating from top to bottom, and a first buckle portion 14 provided on both sides of the bottom of the tube body 11. The tube body 11 includes an upper tube body 111 and a lower tube body 112, the wall thickness of the upper tube body 111 is greater than the wall thickness of the lower tube body 112, and the first buckle portion 14 is provided on both sides of the lower tube body 112. The flue 13 includes a flue pipe 131 extending from the top of the tube body 11 into the liquid storage cavity 12, a smoke hole 133 formed in the middle of the flue pipe 131, and an insertion portion 132 formed at the bottom of the flue pipe 131. A suction port 134 is formed through the top of the flue 13, and the aperture of the suction port 134 is greater than the aperture of the rest of the smoke hole 133. The outer diameter of the insertion portion 132 is smaller than the outer diameter of the flue pipe 131. Preferably, the flue 13 is located in the middle of the liquid storage chamber 12 ; in a specific implementation, the flue 13 may also be disposed on one side or both sides of the liquid storage chamber 12 .

[0054] When the cigarette cartridge is packaged, the suction port 134 is sealed by a rubber plug 20 to prevent foreign matter from entering the smoke hole 133 of the smoke duct 13 .

[0055] The heating component includes a closure member 40, a sealing member 70 integrally formed on the closure member 40, and an atomizer core 30 installed in the sealing member 70 and the closure member 40. The heating component is inserted into the tube body 11 and blocks the liquid storage cavity 12. An atomizer cavity 44 is provided at the lower side of the heating component, and a receiving cavity 45 for holding the atomizer core 30 is provided above the atomizer cavity 44. The upper side of the atomizer core 30 is communicated with the liquid storage cavity 12. The heating component also includes an airway 43 communicating with the flue 13 and the atomizer cavity 44.

[0056] Please continue reading Figure 5 , Figure 6 As shown, the atomizing core 30 includes a porous body 31, an extension wall 34 extending upward from both longitudinal sides of the porous body 31, and a transverse through groove 32 surrounded by the porous body 31 and a pair of extension walls 34. The transverse through groove 32 is through in the transverse direction, and is open on the left, right and upper sides. The bottom surface, side surface and / or top surface of the transverse through groove 32 and / or the extension wall 34 constitute the liquid permeation surface 36 of the atomizing core 30, and the bottom surface of the porous body 31 is the atomizing surface 35. A heating wire 33 is embedded or mounted on the atomizing surface 35, and the heating wire 33 includes a heating wire body 333 and first and second electrodes 331, 332 connected to the heating wire body 333 and located on the left and right sides. The heating wire body 333 extends in an S-shaped structure, and the width of the first and second electrodes 331, 332 is greater than the width of the heating wire body 333.

[0057] The sealing member 70 is clamped between the outer periphery of the porous body 31 and the sealing member 40 to achieve sealing. The cavity below the atomizing core 30 forms a part of the atomizing cavity.

[0058] Subsequently, the heating component is pushed upward into the tube body 11 of the cartridge tube 10. The sealing member 70 is clamped between the inner wall surface of the tube body 11 of the cartridge tube 10 and the outer periphery of the closure member 40 to seal the liquid storage chamber 12. At the same time, the insertion portion 132 of the flue 13 is inserted into the air passage 43, and the sealing member 70 is clamped between the outer wall surface of the flue 13 and the inner wall surface of the air passage 43 to seal the air passage 13 to prevent the smoke oil from penetrating into the air passage 13. The transverse ends of the transverse through groove 32 are connected to the liquid storage chamber 12 so that the smoke oil in the liquid storage chamber 12 flows into the transverse through groove 32. The smoke oil penetrates from the liquid seepage surface 36 to the side of the atomization surface 35. The atomization core 30 is made of porous ceramic or porous metal, and a plurality of capillaries are formed between the liquid seepage surface 36 and the atomization surface 35, and the smoke oil penetrates from the capillaries.

[0059] Please continue reading Figures 7 to 9 As shown, the base A includes an insulating seat body 50 and an elastic terminal 60 integrally formed with the insulating seat body 50. The insulating seat body 50 includes a base 51, a first step 52 extending upward from the base 51, a second step 53 extending upward from the first step 52, a recessed portion 54 recessed downward from the middle of the second step 53, and an air hole 55 penetrating downward from the middle of the recessed portion 54. The first step 52 has two lateral sides protruding outward to form a second buckle portion 56, and the first step 52 has two lateral sides recessed downward at the outer periphery of the second step 53 to form a groove 57. The surface of the second step 53 is higher than the surface of the first step 52, and the surface of the first step 52 is higher than the surface of the base 51. The size of the second step 53 is smaller than the size of the first step 52, that is, the second step 53 is completely located in the first step 52 in the vertical projection direction; the size of the first step 52 is smaller than the size of the base 51, that is, the first step 52 is completely located in the base 51 in the vertical projection direction. The atomizing chamber 44 of the heating component 40 is formed between the recessed portion 54 and the atomizing surface 35 of the atomizing core 30 .

[0060] The elastic terminal 60 includes a contact portion 61 whose bottom surface is exposed to the lower surface of the base 51, a bent portion 62 formed by bending upward and extending from the lateral inner side of the contact portion 61, a support portion 63 formed by bending horizontally and extending from the lateral inner side of the bent portion 62, and an elastic arm 64 formed by bending upward and extending from one longitudinal side of the support portion 63. The elastic arm 64 includes a vertical arm portion 641 formed by bending upward and extending from one longitudinal side of the support portion 63, a bent arm portion 642 formed by bending from the vertical arm portion 641 along a first longitudinal direction and then along a second longitudinal direction, a hook portion 643 formed by bending downward from the top of the bent arm portion 642, and a contact portion 644 formed at the top of the bent arm portion 642. The first longitudinal direction is opposite to the second longitudinal direction.

[0061] The contact portion 61 is formed in the base 51 and the lower surface of the contact portion 61 is exposed on the lower surface of the base 51 to electrically contact the battery contact of the cigarette rod. The bending portion 62 is formed in the base 51 and the first step 52, and the support portion 63 is formed on the bottom surface of the recessed portion 54 of the second step 53 and the surface of the support portion 63 is exposed on the bottom surface of the recessed portion 54. The contact portion 61 and the support portion 63 are both plate-like structures, and the elastic arm 64 is formed by bending and extending upward after tearing from one longitudinal side of the support portion 63. The groove 57 is formed with a first positioning hole 571 at the upper surface corresponding to the contact portion 61, and the first positioning hole 571 is convenient for clamping the contact portion 61 up and down by the mold ejector pin to position it during injection molding. A second positioning hole 58 is also formed on the lower surface of the base 51. The second positioning hole 58 is located below the support portion 63 and exposes at least a portion of the bottom surface of the support portion 63 to the second positioning hole 58. The positioning hole 58 facilitates the support portion 63 to be clamped up and down by a mold ejector pin for positioning during injection molding.

[0062] The elastic terminal 60 also includes a connecting portion 65 for connecting a material strip. A plurality of elastic terminals 60 are connected to a material strip through the connecting portion 65, so that fully automated injection molding in an automatic material pulling manner can be realized. The connecting portion 65 is preferably formed by bending upward and extending from the lateral outer side of the contact portion 61. When the elastic terminal 60 is stamped, a pre-breaking groove is formed between the connecting portion 65 and the material strip. After the insulating seat 50 is injection molded, the material strip can be directly bent to disconnect the material strip from the connecting portion 65 at the pre-breaking groove. Specifically, the connecting portion is exposed upward to the surface of the groove 57. In other embodiments, the connecting portion can be arranged at other parts of the elastic terminal 60, depending on the specific structure of the elastic terminal 60.

[0063] After the elastic terminal 60 is injection molded in the insulating seat 50, the insulating seat 50 is pushed upward from bottom to top into the tube body 11 of the cigarette bomb tube 10, wherein the outer periphery of the base 51 is in contact with the inner wall surface of the lower tube body 112 and the second buckle portion 56 is snapped into the first buckle portion 14 to achieve locking; the upper surface of the first step 52 is against the lower surface of the heating component 40 to achieve support for the heating component 40; the second step 53 partially enters the closure 40 of the heating component 40 to achieve the closure of the atomization chamber 44, that is, the shape of the second step 53 and the atomization chamber 44 of the closure 40 are contoured structures and can fit each other. The contact portions 644 of the elastic arms 64 of a pair of the elastic terminals 60 are upwardly pressed against the first and second electrodes 331, 332 of the heating wire 33 on one side of the atomization surface 35 of the atomization core 30 to achieve electrical contact.

[0064] The base of the cigarette cartridge of the present application adopts an elastic terminal 60 to replace the traditional elastic needle, so as to avoid the problem that the elastic needle cannot be connected to the material and thus cannot be automatically produced. The elastic terminal 60 realizes fully automated injection molding by connecting the material strip through the connecting part 65, which greatly reduces the labor cost in manufacturing, improves the stability of product production, and reduces quality problems caused by human factors.

[0065] Please continue reading Figures 11 to 18 , the structure and principle of the first embodiment of the heating component of the present application will be described in detail.

[0066] The closure member 40 includes a main body 41, oil passages 42 opened on both sides of the main body 41 in the up-down direction, a receiving chamber 45 formed in the main body 41 and located below the oil passages 42, an atomizing chamber 44 opened in the main body 41 and located below the receiving chamber 45, and an air passage 43 extending downward from the top of the main body 41 and connected to the atomizing chamber 44.

[0067] The main body 41 includes a connecting portion 411 at the upper end connecting the flue 13 and the liquid storage chamber 12, a receiving portion 412 located at the lower side of the connecting portion 411, and a cavity portion 413 located at the lower side of the receiving portion 412. The oil passage 42 extends downward from the two lateral sides of the top of the connecting portion 411 and communicates with the receiving chamber 45, the receiving chamber 45 is located in the receiving portion 412, and the atomizing chamber 44 is located in the cavity portion 413. The air passage 43 includes a first air passage 431 formed by being recessed downward from the middle of the top of the connecting portion 411, a second air passage 432 that penetrates the connecting portion 411 in the front and back of the middle part and communicates with the first air passage 431, a third air passage 433 that is recessed from the longitudinal side walls of the receiving portion 412 and communicates with the second air passage 432, and a fourth air passage 434 that penetrates the longitudinal side walls of the cavity portion 413 and connects the third air passage 433 with the atomizing chamber 44. The first air passage 431 is located between a pair of the oil passages 42, and the air passage 43 and the oil passage 42 are isolated and sealed from each other to be independent of each other. The size of the atomizing chamber 44 is larger than that of the accommodating chamber 45, and a peripheral top wall 451 is formed on the top outer periphery of the accommodating chamber 45.

[0068] A plurality of protrusions 414 are provided at the bottom of the cavity portion 413 outside the atomizing cavity 44 of the main body portion 41 , and step portions 46 are formed on both lateral sides of the atomizing cavity 44 . The step portions 46 are upwardly opened to form at least one embedding hole 415 , and the embedding hole 415 does not penetrate upward to the oil passage 42 .

[0069] The seal 70 is molded on the seal 40, and the seal 70 includes an upper sealing portion 71 covering the connecting portion 411, a lower sealing portion 72 covering the cavity portion 413, a connecting portion 73 connecting the upper sealing portion 71 and the lower sealing portion 72, and a wrapping portion 74 molded in the accommodating cavity 45.

[0070] The upper sealing portion 71 wraps around the outer periphery, top surface and inner wall surface of the connecting portion 411 and the first air duct 431 to seal them. That is, when the heating component is placed in the tube body 11, the upper sealing portion 71 is clamped between the outer periphery of the connecting portion 411 and the inner wall surface of the tube body 11, and between the inner wall surface of the first air duct 431 and the outer wall surface of the insertion portion 132 of the flue pipe 13, so as to seal the liquid storage chamber 12, so that the liquid storage chamber 12 and the outer wall surface of the heating component are sealed, and the liquid storage chamber 12 and the air duct 43 are sealed.

[0071] The lower sealing portion 72 wraps the bottom surface and the outer side surface of the cavity portion 413. The lower sealing portion 72 includes a plurality of embedding holes 721 for accommodating the protrusions 414 of the closure member 40 and protrusions 75 extending into the embedding holes 415 of the closure member 40, so that the sealing member 70 is tightly combined with the closure member 40 without causing cracking.

[0072] The lower sealing portion 72 is clamped between the outer wall surface of the cavity portion 413 and the inner wall surface of the tube body 11 to achieve secondary sealing of the liquid storage cavity 12. At the same time, the lower sealing portion 72 is also formed to cover the inner wall surface of the atomizing cavity 44, and the wrapping portion 74 extends upward from the lower sealing portion 72 at the inner wall surface of the atomizing cavity 44 and covers the inner wall surface of the accommodating cavity 45 and the bottom surface of the peripheral top wall 451.

[0073] The connecting portion 73 extends from both sides of the third air channel 433 in the up-down direction and connects the upper sealing portion 71 and the lower sealing portion 72. The connecting portion 73 is clamped between the outer side surface of the main body 41 and the inner wall surface of the tube body 11 to seal the air channel 43, so that the air channel 43 is sealed independently and the airflow is inhaled only through the atomization chamber 44.

[0074] The wrapping portion 74 includes a wrapping wall 741 formed and attached to the inner wall surface of the accommodating cavity 45, a covering portion 743 extending from the top of the wrapping wall 741 into the accommodating cavity 45, and fins 744 extending downward from both lateral sides of the covering portion 743. The fin 744 includes a fin body 7441, a fin longitudinal wall 7442 extending from the wrapping wall 741 and connecting the fin body 7441, and a cavity 7443 formed between the fin body 7441, the fin longitudinal wall 7442 and the wrapping wall 741. The inner wall surface of the wrapping wall 741 is located below the cavity 7443 and is provided with a balancing gas groove 745 connecting the atomizing cavity 44 and the cavity 7443.

[0075] The thickness of the fin body 7441 is between 0.15-0.3 mm, preferably 0.2 mm; the height is between 0.6-1.3 mm, preferably 0.9 mm; the width is between 0.9-1.5 mm. The longitudinal width of the cavity 7443 is 0.9-1.3 mm. The depth of the balancing air groove 745 is between 0.5-0.3 mm.

[0076] After the sealing member 70 and the closure member 40 are integrally injection molded, the atomizer core 30 is loaded from bottom to top into the atomizer core installation cavity 742 of the sealing member 70 located in the accommodating cavity 45 of the closure member 40, and the bottom of the wrapping wall 741 is located at the edge of one side of the atomizer cavity 44 and is provided with a chamfer 746 to facilitate the upward loading of the atomizer core 30. After loading, the wrapping wall 741 of the sealing member 70 is clamped and sealed by the atomizer core 30 and the accommodating cavity 45; the covering portion 743 is at least partially clamped between the surface of the extension wall 34 of the atomizer core 30 and the peripheral top wall 451 to achieve sealing, and the fin 744 enters downward into the transverse through groove 32; and the fin body 7441 and the fin longitudinal wall 7442 are tightly pressed on the surfaces at both ends of the transverse channel 32, and the fin body 7441 and the fin longitudinal wall 7442 are interference fit with the transverse through groove 32. The longitudinal sides of the fin longitudinal wall 7442 are respectively close to the inner side surfaces of the extension walls 34 at both ends of the transverse through groove 32 to achieve sealing. After the atomizer core 30 is pressed into the atomizer core installation cavity 7443, the wrapping wall 741 of the seal 70 is partially squeezed to reduce the depth of the balancing gas groove 745, but a certain margin is still retained to generate a channel allowing gas to pass through. The sizes of the fin 744 and the balancing gas groove 745 can be adjusted and optimized to adapt to different product structures.

[0077] When the e-liquid in the liquid storage chamber 12 is atomized, negative pressure is created in the liquid storage chamber 12, which is not conducive to the e-liquid continuing to penetrate downward through the atomizer core 30. The negative pressure state of the liquid storage chamber 12 causes the thinner fin body 7441 to tilt inward (such as Fig.16 The atomizing chamber 44 is tilted as shown by the dotted line) and a certain gap is generated to allow air to enter the liquid storage chamber 12 through the atomizing chamber 44, the balancing air groove 745 and the cavity 7443 to balance the air pressure in the liquid storage chamber 12.

[0078] Please continue reading Figures 19 to 21 , which is a drawing of the second embodiment of the heating component of the present application; the structure and principle of the second embodiment of the heating component of the present application will be introduced in detail below.

[0079] The difference between the second embodiment and the first embodiment is that the atomizer core 30 adopts a flat plate structure, that is, the liquid seepage surface 36 of the atomizer core 30 is a flat structure, and the transverse through groove 32 structure is no longer provided; and the fin 744 is eliminated. The covering part 743 on the top of the balancing air groove 745 covers the surface of the liquid seepage surface 36. When the liquid storage cavity 12 generates negative pressure, the covering part 743 on the upper side of the balancing air groove 745 is opened upward and allows the air in the atomizer cavity 44 to enter the liquid storage cavity 12 through the balancing air groove 745 and the opened covering part 743 to achieve the air pressure balance in the liquid storage cavity 12. The covering part 743 and the surface of the atomizer core 30 are interference fit.

[0080] In a specific implementation, the wrapping portion 74 may be designed independently from the sealing member 70 , that is, the wrapping portion 74 is directly wrapped around the atomizer core 30 and then inserted into the accommodating cavity 45 of the sealing member 40 .

[0081] The heating component and the cigarette cartridge of the present application are provided with a balancing air groove 745 connected to the atomization chamber 44 on the wrapping wall 741 of the sealing member 70, and the covering portion 743 above the balancing air groove 745 is completely pressed on the liquid seepage surface 36 of the atomization core 30, so that when the negative pressure in the liquid storage chamber 12 reaches a certain value, the covering portion 743 is prompted to open to allow air to enter the liquid storage chamber 12 from the atomization chamber 44 along the balancing air groove 745 and the opened covering portion 743 to achieve air pressure balance in the liquid storage chamber 12. At the same time, when the liquid storage chamber 12 is in a non-negative pressure state, the covering portion 743 is tightly attached to the liquid seepage surface 36 of the atomization core 30, which can effectively prevent oil leakage.

[0082] In addition, the seal 70 and the closure 40 are integrally injection molded, so that the seal 70 and the closure 40 are tightly combined, and a tighter combination is achieved through the mutually nested protrusions 414, 75 and embedding holes 415, 721, preventing the seal 70 from cracking from the closure 40, thereby avoiding the problem of product defects.

[0083] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0084] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A heating component, comprising a sealing member, an atomizing core, and a sealing member sleeved on the atomizing core and clamped between the atomizing core and the sealing member, wherein the sealing member comprises a main body, an oil passage and an air passage opened on the main body and independent of each other, a receiving chamber arranged under the oil passage and connected to the oil passage, and a partial atomizing chamber located below the receiving chamber, the atomizing core comprises a liquid permeation surface connected to the oil passage and an atomizing surface connected to the atomizing chamber, characterized in that: The sealing member comprises a wrapping portion which is closely attached to the accommodating cavity, wherein the wrapping portion comprises a wrapping wall which is clamped between the inner wall surface of the accommodating cavity and the side surface of the atomizer core, and a covering portion which is integrally extended from the wrapping wall and closely attached to the outer edge of the liquid seepage surface, and the wrapping wall is provided with at least one balancing air groove which is connected to the atomizer cavity on the side surface facing the atomizer core, and when the oil passage has a predetermined negative pressure value, the external air pressure from the balancing air groove causes the covering portion corresponding to the balancing air groove to open and allows external air to enter the space of the oil passage to achieve air pressure balance; The atomization core also includes a porous body, extension walls extending upward from both longitudinal sides of the porous body, and a transverse through groove formed between a pair of the extension walls, and both ends of the transverse through groove are connected to the oil channel to allow the smoke oil to enter the transverse through groove; the wrapping part also includes fins extending downward from the covering parts on both transverse sides and pressed on the bottom surface of the transverse through groove, and the balancing air groove is opened on the wrapping walls on both transverse sides and corresponds to the position of the fins; a heating wire is embedded or mounted on the atomization surface, and the heating wire includes a heating wire body and a first and a second electrode connected to the heating wire body and located on the left and right sides.

2. The heating component according to claim 1, characterized in that: The lateral sides of the top of the accommodating cavity are connected to the oil channel, the opening size of the top of the accommodating cavity is smaller than the size of the accommodating cavity and forms a peripheral top wall at the periphery of the top of the accommodating cavity, the covering part is at least partially clamped between the peripheral top wall and the liquid seepage surface, and the covering part and the liquid seepage surface are interference fit.

3. The heating component according to claim 2, characterized in that: The covering position of the covering portion and the liquid seepage surface is not suppressed by the peripheral top wall at the side close to the balancing gas groove.

4. The heating component according to claim 1, characterized in that: The fin includes a fin body pressed downward on the bottom surface of the transverse through groove and a fin longitudinal wall connecting the fin body and the wrapping wall as a whole. The covering part, the wrapping wall, the fin body and the fin longitudinal wall are arranged to form a cavity with a bottom opening, and the cavity is connected to the balancing air groove.

5. The heating component according to claim 4, characterized in that: The thickness of the fin body is less than the thickness of the longitudinal wall of the fin. The thickness of the fin body is between 0.15-0.3 mm, the height is between 0.6-1.3 mm, and the longitudinal width is between 0.9-1.5 mm. The longitudinal width of the cavity is greater than the depth of the balancing air groove.

6. The heating component according to claim 5, characterized in that: After the wrapping portion is clamped by the atomizer core and the accommodating cavity, the depth of the balancing gas groove is less than 0.2 mm.

7. The heating component according to claim 4, characterized in that: The closure member also includes a main body, which includes a connecting portion located at the upper end, a accommodating portion extending downward from the connecting portion, and a cavity portion extending downward from the accommodating portion. The atomization chamber is formed in the hollow inner cavity of the cavity portion, the accommodating chamber is opened in the accommodating portion and is located above the atomization chamber, the oil channel opens downward from the two lateral sides of the top of the connecting portion and is connected to the accommodating chamber, the air channel includes a first air channel opened downward from the middle of the top of the connecting portion, a second air channel that penetrates the connecting portion in the longitudinal direction and is connected to the first air channel, a third air channel that is recessed from the longitudinal sides of the accommodating portion and is connected to the second air channel, and a fourth air channel that is formed by openings on the longitudinal sides of the cavity portion and is connected to the third air channel and the atomization chamber.

8. The heating component according to claim 7, characterized in that: The sealing component is integrally formed on the closing component, and the sealing component also includes an upper sealing portion formed and wrapped around the connecting portion, a lower sealing portion formed and wrapped around the cavity portion, and a connecting portion formed on the longitudinal wall surface of the main body along the lateral sides of the second to fourth air passages, and the wrapping portion is connected to the lateral sides of the lower sealing portion.

9. The heating component according to claim 8, characterized in that: The upper sealing portion wraps around the outer peripheral wall of the connecting portion and the inner wall of the first air channel, the lower sealing portion wraps around the outer peripheral wall of the cavity portion and part of the inner wall of the atomizing cavity, and the wrapping portion extends from the lower sealing portion on the inner wall of the atomizing cavity to the accommodating cavity.

10. The heating component according to claim 9, characterized in that: The size of the atomizing chamber is larger than that of the accommodating chamber and a step portion is formed on both lateral sides of the top of the atomizing chamber, the step portion is provided with an embedding hole upward, and a bump protrudes downward from the bottom surface of the cavity portion; the lower sealing portion of the sealing member is provided with an embedding hole, a bump nested with the bump of the closure member, and an embedding hole.

11. A cigarette cartridge, characterized in that: It comprises a heating component as claimed in any one of claims 1 to 10, a tube body in which the heating component is sleeved, and a base that is buckled upward into the tube body and locks the heating component, the atomizer core also comprises a heating wire arranged on the atomization surface, the heating wire comprises a heating wire body and a first and a second electrode connected to both sides of the heating wire body, the base comprises an insulating seat body and an elastic terminal integrally injection-molded on the insulating seat body, the elastic terminal comprises a contact portion exposed to the bottom surface of the insulating seat body and an elastic arm that upwardly resists and electrically contacts the first and the second electrodes of the atomizer core.

12. The cigarette cartridge according to claim 11, characterized in that: The insulating seat body includes a base, a first step extending upward from the base, a second step extending upward from the first step, and a recessed portion recessed downward from the middle of the second step, the upper portion of the recessed portion constitutes a part of the atomization chamber, and the top of the insulating seat body at least partially supports the bottom surface of the cavity portion of the heating component.

13. The cigarette cartridge according to claim 12, characterized in that: The elastic terminal also includes a bending portion formed by bending upward and extending from the lateral inner side of the contact portion and a supporting portion formed by bending inward and extending horizontally from the bending portion. The elastic arm is formed by bending upward and extending from one longitudinal side of the supporting portion. The elastic arm includes a vertical arm portion formed by bending upward and extending from one longitudinal side of the supporting portion, a bending arm portion formed by bending first along a first longitudinal direction and then bending and extending along a second longitudinal direction from the vertical arm portion, a hook portion formed by bending downward from the free end of the bending arm portion, and a contact portion formed at the top of the bending arm portion and electrically contacting the first and second electrodes.

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