Heating wire, atomization core, atomizer and electronic cigarette

Abstract

The present invention provides a heating wire, an atomization core, an atomizer and an electronic cigarette. Among them, the heating wire includes a heating wire main body, the heating wire main body includes a first heating section and a second heating section connected to each other, the second heating section is configured to correspond to oil inlet, the first heating section and the second heating section are respectively composed of coils that are multi-turn, have a spacing between adjacent turns, and are in a spiral shape, and the spacing between adjacent turns of the first heating section is smaller than the spacing between adjacent turns of the second heating section. The heating wire, atomization core, atomizer and electronic cigarette provided by the present invention can solve the problems of unsmooth oil inlet and slow oil guiding of the atomizer by designing different heating sections of the heating wire and using different coil spacings of different heating sections.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and particularly relates to a heating wire, an atomization core, an atomizer and an electronic cigarette. Background Art

[0002] In the related art, the heating wire of the atomizer is a coil formed by longitudinally stacking metal wires with equal spacing between adjacent turns. The heating wire is installed in the atomization core of the atomizer. However, the oil guiding of the atomizer in the related art is slow. Summary of the Invention

[0003] The purpose of the present invention is to provide a heating wire, an atomization core, an atomizer and an electronic cigarette to solve the problem of slow oil guiding of the atomizer.

[0004] In the first aspect of the embodiment of the present invention, a heating wire is provided, including a heating wire main body. The heating wire main body includes a first heating section and a second heating section connected to each other. The second heating section is configured to correspond to oil inlet. The first heating section and the second heating section are respectively composed of coils that are adjacent to each other with a spacing therebetween and are in a spiral shape, and the spacing between adjacent turns of the first heating section is smaller than the spacing between adjacent turns of the second heating section.

[0005] As an implementation manner, the number of turns of the coils of the first heating section is more than the number of turns of the coils of the second heating section.

[0006] As an implementation manner, the heating wire main body further includes a third heating section. The third heating section is composed of coils that are adjacent to each other with a spacing therebetween and are in a spiral shape. The third heating section and the first heating section are respectively connected to two ends of the second heating section.

[0007] As an implementation manner, the first heating section, the second heating section and the third heating section are configured to be arranged in sequence along the air flow direction. The number of turns of the coils of the third heating section is less than the number of turns of the coils of the first heating section, and the number of turns of the coils of the third heating section is more than the number of turns of the coils of the second heating section. The spacing between adjacent turns of the third heating section is smaller than the spacing between adjacent turns of the first heating section.

[0008] As an implementation manner, the first heating section and the third heating section are respectively connected to the second heating section by welding connection, riveting connection, winding connection, pasting connection, contact connection or integral molding process.

[0009] As an implementation manner, at least one first wire for conducting electricity is connected to the end of the first heating section departing from the second heating section, and at least one second wire for conducting electricity is connected to the end of the third heating section departing from the second heating section.

[0010] As an implementation manner, the at least one first conductive wire is connected to the first heating section by welding connection, riveting connection, winding connection, pasting connection, contact connection or integral molding process.

[0011] The at least one second conductive wire is connected to the third heating section by welding connection, riveting connection, winding connection, pasting connection, contact connection or integral molding process.

[0012] As an implementation manner, the number of turns of the coil of the first heating section is 6.3 - 10.6 turns, and the distance between two adjacent turns of the coil of the first heating section is 0.146 - 0.546 mm;

[0013] The number of turns of the coil of the second heating section is 1.0 - 5.0 turns, and the distance between two adjacent turns of the coil of the second heating section is 0.2 - 0.8 mm;

[0014] The number of turns of the coil of the third heating section is 2.2 - 6.6 turns, and the distance between two adjacent turns of the coil of the third heating section is 0.01 - 0.3 mm.

[0015] As an implementation manner, the wire diameter of each turn of the coil of the first heating section, the second heating section and the third heating section is 0.1 - 0.4 mm.

[0016] As an implementation manner, the outer diameter of the heating wire body is 1.0 - 4.0 mm;

[0017] The height of the heating wire body is 4.5 - 12.5 mm.

[0018] As an implementation manner, the coils of the first heating section, the second heating section and the third heating section are all made of metal materials.

[0019] A second aspect of the embodiments of the present invention provides an atomizing core, including an atomizing core body. A heating cavity is formed in the atomizing core body, and the atomizing core body is provided with at least one oil inlet hole. The heating wire as described above is provided in the heating cavity, and the second heating section in the heating wire corresponds to the at least one oil inlet hole.

[0020] As an implementation manner, the atomizing core body includes an atomizing tube and oil guiding cotton. The heating cavity is formed inside the atomizing tube. The atomizing tube is provided with the at least one oil inlet hole and at least one exhaust hole for exhausting air on the outer wall. The at least one exhaust hole corresponds to the first heating section of the heating wire body. The oil guiding cotton is wrapped outside the heating wire body, and the oil guiding cotton blocks one side of the at least one oil inlet hole and the at least one exhaust hole.

[0021] As an implementation manner, the exhaust hole is linear, and one end of the exhaust hole communicates with the oil inlet hole and / or a fuel storage cavity configured to communicate with the oil inlet hole, and the other end of the exhaust hole communicates with the heating cavity.

[0022] As an implementation manner, the atomizing core body further includes a fixing member. One end of the fixing member is inserted into the heating cavity, and first and second conductive electrodes electrically connected to the heating wire are provided at the end of the other end of the fixing member.

[0023] A third aspect of an embodiment of the present invention provides an atomizer, including an atomizer body. A fuel storage cavity is formed in the atomizer body, and the atomizing core as described above for atomizing e-liquid is provided in the fuel storage cavity.

[0024] As an implementation manner, the atomizer body includes an oil storage chamber body. A fuel storage cavity is formed in the oil storage chamber body. A smoking port for smoking is provided at one end of the oil storage chamber body. A smoke guide tube is protruded from the smoking port into the fuel storage cavity in the atomizer body. The smoke guide tube communicates with the smoking port. One end of the atomizing core away from the base is inserted into the smoke guide tube. The smoke guide tube communicates with the heating cavity. A sealing member for sealing the fuel storage cavity is provided between the outer peripheral wall of the atomizing core and the inner peripheral wall of the oil storage chamber body;

[0025] A gas guide member is provided at one end of the oil storage chamber body away from the smoking port. One end of the gas guide member abuts against the sealing member. An oil injection channel communicating with the fuel storage cavity and an air inlet channel communicating with the heating cavity are provided at the other end of the gas guide member. The oil injection channel is used for injecting oil, and the air inlet channel is used for admitting air.

[0026] A fourth aspect of an embodiment of the present invention provides an electronic cigarette, including the atomizer as described above.

[0027] For the heating wire, atomizing core, atomizer and electronic cigarette provided by the embodiments of the present invention, by designing the heating wire to include a first heating section and a second heating section, the second heating section can be arranged corresponding to the oil inlet hole, and the distance between adjacent turns of the coil in the first heating section is less than the distance between adjacent turns of the coil in the second heating section. After the heating wire is installed in the atomizing core, the extrusion of the oil guiding cotton at the oil inlet hole is reduced, and the e-liquid can be quickly sucked into the oil guiding cotton through the oil inlet hole, thereby solving the problems of unsmooth oil inlet and slow oil guiding of the atomizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be described in detail below with reference to the drawings to make the above advantages of the present invention more obvious. Among them,

[0029] Figure 1 is an exploded view of the atomizer in an embodiment of the present invention;

[0030] Figure 2 is a schematic structural diagram of the atomizer in the embodiment of the present invention;

[0031] Figure 3 is Figure 2 a schematic cross-sectional view of;

[0032] Figure 4 is Figure 1 a schematic structural diagram of the main body of the heating wire in;

[0033] Figure 5 is Figure 1 a schematic diagram of the size of the main body of the heating wire in;

[0034] Figure 6 is Figure 1 a schematic diagram of the size of each heating section in the main body of the heating wire in;

[0035] Figure 7 is the airflow direction diagram of the atomizer in the embodiment of the present invention. Detailed implementation manners

[0036] The following will combine the accompanying drawings and embodiments to detail the implementation manners of the present invention, so as to fully understand how the present invention uses technical means to solve technical problems and the implementation process of achieving technical effects and implement accordingly. It should be noted that as long as there is no conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0037] It should be noted that a large number of technical features are recorded in the description of this application, distributed in various technical solutions. If all possible combinations of technical features (i.e., technical solutions) of this application are listed, the description will be too long. To avoid this problem, each technical feature invented in the above-mentioned invention content of this application, each technical feature invented in the following embodiments and examples, and each technical feature invented in the accompanying drawings can be freely combined with each other to form various new technical solutions (these technical solutions are all regarded as having been recorded in this specification), unless the combination of such technical features is technically infeasible. For example, in one example, features A + B + C are invented, and in another example, features A + B + D + E are invented, and features C and D are equivalent technical means that play the same role. Technically, only one of them can be used and it is impossible to use both at the same time. Feature E can be combined with feature C technically, then the solution of A + B + C + D should not be regarded as having been recorded due to technical infeasibility, and the solution of A + B + C + E should be regarded as having been recorded.

[0038] In the related art, the heating wire of an atomizer is a coil formed by longitudinally stacking metal wires with equal spacing between adjacent turns. The heating wire is installed in the atomization core of the atomizer, causing the wicking cotton blocking the oil inlet hole to be squeezed by the heating section of the corresponding heating wire, resulting in slow oil conduction of the wicking cotton and prone to insufficient oil supply, causing cotton burning. In addition, due to gravity, the e-liquid will flow downward to the lower part of the wicking cotton, resulting in dripping of the wicking cotton and leaking out of the atomizer. Moreover, oil bubble sounds will also be generated after the air flow passes through the heating chamber, and oil leakage will occur when the atomizer is placed upside down, and there are many other problems.

[0039] To solve at least one of the above problems, an embodiment of the present invention provides a heating wire, an atomization core, an atomizer, and an electronic cigarette. By designing the heating wire to include a first heating section and a second heating section, the second heating section can correspond to oil inlet, and the spacing between adjacent turns of the coil in the first heating section is smaller than the spacing between adjacent turns of the coil in the second heating section, which reduces the extrusion of the wicking cotton at the oil inlet hole. The e-liquid can be quickly sucked into the wicking cotton through the oil inlet hole, thereby solving the problems of unsmooth oil inlet and slow oil conduction of the atomizer.

[0040] Specifically, as Figure 1 shown, in a specific embodiment of the present invention, an atomizer is provided. The atomizer includes an atomizer body, and an oil storage chamber 103 is formed in the atomizer body. An atomization core for atomizing e-liquid is provided in the oil storage chamber 103.

[0041] The atomization core includes an atomization core body. A heating chamber 302 is formed in the atomization core body, and at least one oil inlet hole 301 for communicating with the oil storage chamber 103 is provided in the atomization core body. A heating wire is provided in the heating chamber 302.

[0042] The heating wire includes a heating wire body 5. The heating wire body 5 includes a connected first heating section 501 and a second heating section 502. The second heating section is configured to be arranged corresponding to the oil inlet hole 301. The first heating section 501 and the second heating section 502 are respectively composed of coils with a spacing between adjacent turns and in a spiral shape, and the spacing between adjacent turns of the first heating section 501 is smaller than the spacing between adjacent turns of the second heating section 502. It should be noted that the atomization core body may further include wicking cotton 4. The wicking cotton 4 can be coated outside the heating wire body 5 and is used to block the oil inlet hole 301.

[0043] By designing different heating sections of the heating wire and using the coil spacing of different heating sections, when it is installed in the atomization core, the spacing between adjacent turns of the second heating section 502 corresponding to the oil inlet hole 301 is larger, so as to reduce the extrusion force on the wicking cotton 4. The e-liquid is more likely to enter the wicking cotton 4 from the oil inlet hole 301, thereby solving the problems of unsmooth oil inlet and slow oil conduction of the atomizer.

[0044] In some embodiments, the number of turns of the coil of the first heating section 501 is more than that of the second heating section 502, which can increase the calorific value and heating area and quickly atomize the e-liquid.

[0045] In some embodiments, the heating wire body 5 further includes a third heating section 503. The third heating section 503 is composed of a plurality of turns of coils that are spaced apart from each other and are in a spiral shape. The third heating section 503 and the first heating section 501 are respectively connected to two ends of the second heating section 502. Specifically, the third heating section 503 is connected to one end of the second heating section 502, and the first heating section 501 is connected to the other end of the second heating section 502.

[0046] It should be noted that as Figure 3 shown, the heating wire body 5 can be divided into upper, middle and lower heating sections. The first heating section 501 is connected to the lower end of the second heating section 502, and the third heating section 503 is connected to the upper end of the second heating section 502. By providing the third heating section 503, the length of the heating wire can be increased, the heating area can be further increased, and it is beneficial to the atomization effect of the e-liquid.

[0047] Among them, the coils of the first heating section 501, the second heating section 502 and the third heating section 503 can all be made of a metal material, thereby simplifying the processing of the heating wire body. Further, the coils of the first heating section 501, the second heating section 502 and the third heating section 503 include but are not limited to being made of Fe, Gr, Ni or Fe+Ni metal materials.

[0048] In some embodiments, as Figure 5 shown, at least one first conducting wire 505 for conducting electricity is connected to the end of the first heating section 501 facing away from the second heating section 502, and at least one second conducting wire 504 for conducting electricity is connected to the end of the third heating section 503 facing away from the second heating section 502. By providing the first conducting wire 505 and the second conducting wire 504, the electrical connection of the heating wire can be conveniently realized.

[0049] In some embodiments, the first heating section 501, the second heating section 502 and the third heating section 503 are configured to be arranged in sequence along the airflow direction. The first heating section 501 can be located at the lowermost position away from the smoking port 101, and the third heating section can be located at the uppermost position close to the smoking port 101. The number of turns of the coil of the third heating section 503 is less than that of the first heating section 501, and the number of turns of the coil of the third heating section 503 is greater than that of the second heating section 502. The distance between two adjacent turns of the coil of the third heating section 503 is less than the distance between two adjacent turns of the coil of the first heating section 501.

[0050] Combined with the above embodiments, the number of turns of the coil in the second heating section 502 can be the least, and the distance between adjacent turns of the coil can be the largest. It should be noted that the heating wire is coated with oil guiding cotton 4. The second heating section 502 can be arranged corresponding to the oil inlet hole 301, and a part of the oil guiding cotton 4 can be located between the oil inlet hole 301 and the second heating section 502. Since the number of turns of the coil in the second heating section 502 is the least and the distance is the largest, the extrusion force on this part of the oil guiding cotton 4 is the smallest, making the permeability of this part of the oil guiding cotton 4 good, which can accelerate the oil guiding efficiency and prevent insufficient oil supply.

[0051] In some embodiments, the atomization core body includes an atomization tube 3 and oil guiding cotton 4. The heating cavity 302 is formed inside the atomization tube 3. At least one oil inlet hole 301 for oil inlet and at least one exhaust hole 303 for exhausting gas are provided on the outer wall of the atomization tube 3. The oil guiding cotton 4 is coated outside the heating wire body 5, and the oil guiding cotton 5 blocks one side of the at least one oil inlet hole 301 and the at least one exhaust hole 303.

[0052] In some embodiments, the at least one exhaust hole 303 can correspond to the first heating section 501 of the heating wire body 5. Among them, the number of turns of the coil in the first heating section 501 can be the most, and the distance between adjacent turns of the coil is smaller than the distance between adjacent turns of the coil in the second heating section 502.

[0053] It should be noted that when the first heating section 501 corresponds to the exhaust hole 303, the extrusion force on the part of the oil guiding cotton 4 located between the exhaust hole 303 and the oil guiding cotton 4 is relatively large, and the heat generation amount and heat generation area are also large. In the related art, the e-liquid will deposit at the lower end of the oil guiding cotton under the action of gravity, resulting in dripping of the oil guiding cotton. However, in the embodiments of the present invention, after the oil guiding cotton 4 is extruded by the first heating section, the speed of the e-liquid descending to the lower end of the oil guiding cotton 4 can be slowed down. At the same time, the large heat generation amount and heat generation area of this section can quickly atomize the e-liquid deposited at the lower end of the oil guiding cotton 4, and can also suck away the e-liquid deposited in the exhaust hole 303 to maintain the permeability of the exhaust hole 303 and ensure that gas can smoothly pass through the exhaust hole 303 to supplement air into the oil storage cavity 103.

[0054] In some embodiments, the spacing between two adjacent turns of the coil of the third heating section 503 can be minimized. The number of turns of its coil can be more than that of the second heating section 502 and less than that of the first heating section 501. The third heating section 503 can be located at the uppermost end near the smoking port 101, and it can also exert a certain squeezing force on the wicking cotton 4 at the upper part, reducing the gap between the wicking cotton 4 and the inner wall of the atomizing tube 3, preventing the phenomenon of oil bubbling sound when the air flow passes through the heating chamber 302 due to the large gap between the wicking cotton 4 and the inner wall of the atomizing tube 3. At the same time, oil leakage can be prevented when the atomizer is placed upside down, and the coils of the third heating section 503 are the densest, which can prevent the wicking cotton 4 from being squeezed into the spacing between the coils and affecting the air flow through.

[0055] In some embodiments, the first heating section 501 and the third heating section 503 are connected to the second heating section 502 by welding, riveting, winding, pasting, contacting or integral molding processes. This embodiment is preferably welding connection. The coil of the second heating section 502 is made of Ni metal material, and the spacing between the coils of the second heating section 502 is large. The coils of the first heating section 501 and the third heating section 503 are made of Ni+Fe alloy metal material, and their resistance values are greater than the resistance value of the coil of the second heating section 502. Therefore, the coil of the second heating section 502 generates a large amount of heat and is firmly connected without open circuit.

[0056] The first wire 505 is connected to the first heating section 501 by welding, riveting, winding, pasting, contacting or integral molding processes. The second wire 504 is connected to the third heating section 503 by welding, riveting, winding, pasting, contacting or integral molding processes. This embodiment is preferably integral molding process, which is convenient for processing and forming.

[0057] In some embodiments, Figure 6 For the first heating section 501, the number of turns of its coil is 6.3 - 10.6 turns, and the spacing d2 between two adjacent turns of the coil is 0.146 - 0.546 mm. Among them, the number of turns of the coil of the first heating section 501 can be, for example, 8.0 turns, 8.1 turns, 8.2 turns, 8.3 turns, 8.4 turns, 8.45 turns, 8.5 turns, 8.57 turns, 8.6 turns; the spacing d2 between two adjacent turns of the coil of the first heating section 501 can be, for example, 0.14 mm, 0.146 mm, 0.25 mm, 0.35 mm, 0.346 mm, 0.35 mm, 0.36 mm, 0.38 mm, 0.45 mm.

[0058] The number of turns of the coil in the second heating section 502 is 1.0 - 5.0 turns, and the spacing d1 between two adjacent turns of the coil in the second heating section 502 is 0.2 - 0.8 mm; among them, the number of turns of the coil in the second heating section 502 can be, for example, 1.5 turns, 2.0 turns, 2.2 turns, 2.4 turns, 2.5 turns, 2.6 turns, 2.8 turns, 3 turns, 3.5 turns; the spacing d1 between two adjacent turns of the coil in the second heating section 502 can be, for example, 0.28 mm, 0.30 mm, 0.35 mm, 0.38 mm, 0.40 mm, 0.45 mm, 0.48 mm, 0.55 mm, 0.60 mm.

[0059] The number of turns of the coil in the third heating section 503 is 2.2 - 6.6 turns, and the spacing d between two adjacent turns of the coil in the third heating section 503 is 0.01 - 0.3 mm. Among them, the number of turns of the coil in the third heating section 503 can be, for example, 3.5 turns, 3.8 turns, 4.0 turns, 4.2 turns, 4.3 turns, 4.4 turns, 4.5 turns, 4.6 turns, 4.8 turns; the spacing d between two adjacent turns of the coil in the third heating section 503503 can be, for example, 0.10 mm, 0.15 mm, 0.18 mm, 0.221 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.38 mm, 0.42 mm.

[0060] In some embodiments, such as Figure 5 in, the outer diameter φ of the heating wire body 5 is 1.0 - 4.0 mm; among them, the outer diameter φ of the heating wire body 5 can be, for example, 2.0 mm, 2.2 mm, 2.55 mm, 2.56 mm, 2.57 mm, 2.6 mm, 2.65 mm, 0.72 mm, 0.75 mm.

[0061] The height H of the heating wire body 5 is 4.5 - 12.5 mm. Among them, the height H of the heating wire body 5 can be, for example, 8.1 mm, 8.2 mm, 8.3 mm, 8.4 mm, 8.5 mm, 8.6 mm, 8.7 mm, 8.8 mm, 8.9 mm.

[0062] The wire diameter φ1 of each turn of the coil in the first heating section 501, the second heating section 502 and the third heating section 503 is 0.1 - 0.4 mm. Among them, the wire diameter φ1 of each turn of the coil in the first heating section 501, the second heating section 502 and the third heating section 503 can be, for example, 0.20 mm, 0.25 mm, 0.28 mm, 0.3 mm, 0.32 mm, 0.35 mm, 0.4 mm, 0.45 mm.

[0063] This embodiment further provides an atomizer core, including an atomizer core body, a heating chamber 302 is formed in the atomizer core body, and the atomizer core body is provided with at least one oil inlet hole 301, and a heating wire is arranged in the heating chamber 302. The second heating section 502 in the heating wire corresponds to the at least one oil inlet hole 301.

[0064] Among them, the structure and function of the heating wire are the same as those in the above embodiment, and the details can be referred to the above embodiments.

[0065] In some embodiments, the atomizer core body includes an atomizer tube 3 and oil-guiding cotton 4, a heating chamber 302 is formed inside the atomizer tube 3, at least one oil inlet hole 301 for oil inlet and at least one exhaust hole 303 for exhaust are opened on the outer wall of the atomizer tube 3, the exhaust hole 303 corresponds to the first heating section 501 of the heating wire body 5, the oil-guiding cotton 4 is wrapped outside the heating wire body 5, and the oil-guiding cotton 4 blocks one side of at least one oil inlet hole 301 and at least one exhaust hole 303. The exhaust hole 303 can be used to maintain the air pressure balance in the oil storage chamber 103 to promote oil conduction.

[0066] In some embodiments, the exhaust hole 303 is linear, one end of the exhaust hole 303 is connected to the oil inlet hole 301 or / and is configured to communicate with the oil storage chamber 103 to which the oil inlet hole 301 is to lead, and the other end of the exhaust hole 303 is connected to the heating chamber 302. In combination with the above, it should be noted that a gap channel is formed between the exhaust hole 303 and the outer wall of the oil guide cotton 4 and the inner wall of the oil sealing member 7, and the outside air can enter the smoke guide pipe 102 from the smoking port 101, then enter the heating chamber 302, and then enter the gap channel through one end of the exhaust hole 303, and finally enter the oil storage chamber 103 through the other end of the exhaust hole 303, so as to maintain the air pressure balance in the oil storage chamber 103 and promote oil conduction.

[0067] In some embodiments, the atomizer core body also includes a fixing member 6, one end of which is inserted into the heating chamber 302, and the other end of the fixing member 6 is provided with a first conductive electrode 601 and a second conductive electrode 602 electrically connected to the heating wire, thereby achieving heating of the heating wire.

[0068] For example, the fixing member 6 can be inserted into the heating chamber 302 of the atomizing tube 3 , and the other end thereof away from the heating chamber 302 is provided with a first conductive electrode 601 and a second conductive electrode 602 electrically connected to the first conductive wire 505 and the second conductive wire 504 , respectively.

[0069] This embodiment further provides an atomizer, including an atomizer body, wherein an oil storage chamber 103 is formed in the atomizer body, and an atomizer core for atomizing tobacco oil is disposed in the oil storage chamber 103 .

[0070] Among them, the structure and function of the atomizer core are the same as those in the above embodiment, and the details can be referred to the above embodiments.

[0071] In some embodiments, the atomizer body includes an oil storage tank body 1, in which an oil storage cavity 103 is formed. A smoking port 101 for smoking is provided at one end of the oil storage tank body 1. A smoke guide tube 102 is formed on the atomizer body protruding from the smoking port 101 into the oil storage cavity 103. The smoke guide tube 102 is communicated with the smoking port 101. The end of the atomizer core facing away from the base is inserted into the smoke guide tube 102. The smoke guide tube 102 is communicated with the heating cavity 302. An oil sealing member 7 for sealing the oil storage cavity 103 is provided between the outer peripheral wall of the atomizer core and the inner peripheral wall of the oil storage tank body 1. The oil sealing member 7 can block the other side of the exhaust hole 303.

[0072] The oil storage tank body 1 and the oil sealing member 7 can be used to store oil and seal oil respectively, so as to provide oil for the oil-conducting cotton and avoid leakage.

[0073] An air guide 8 is provided at one end of the oil storage tank body 1 away from the smoking port 101. One end of the air guide 8 is in contact with the oil sealing member 7. The other end of the air guide 8 is provided with an oil injection channel 801 communicating with the oil storage chamber 103 and an air intake channel 802 communicating with the heating chamber 302. The oil injection channel 801 is used for oil injection, and the air intake channel 802 is used for air intake. It should be noted that the airflow can enter the heating chamber 302 from the air intake channel 802, driving the heating wire to heat the oil in the oil guide cotton 4 to generate smoke. In addition, the smoke enters the smoke guide tube 102 from the heating chamber 302, and is finally inhaled from the smoking port 101, thereby achieving smoking.

[0074] This embodiment also provides an electronic cigarette, including an atomizer.

[0075] Among them, the structure and function of the atomizer are the same as those in the above embodiment, and the details can be referred to the above embodiments.

[0076] The following describes it in detail through specific embodiments.

[0077] like Figure 1-6, this embodiment provides an atomizer, which includes: an oil storage chamber body 1, a sealing sleeve 2, an atomization tube 3, a wicking cotton 4, a heating wire main body 5, a fixing member 6, an oil sealing member 7, an air guiding member 8, and an iron shell 9. Among them, the heating wire main body 5 is composed of a first heating section 501 and a third heating section 503 respectively connected to both ends of a second heating section 502. And a first conducting wire 505 for conducting electricity is connected to the upper end of the first heating section 501 as the positive electrode, and a second conducting wire 504 for conducting electricity is connected to the lower end of the third heating section 503 as the negative electrode. The first heating section 501, the second heating section 502, and the third heating section 503 are composed of coils that are multi-turn, have a spacing between adjacent turns, and are in a spiral shape. The spacing between adjacent turns of the first heating section 501 and the third heating section 503 is smaller than the spacing between adjacent turns of the second heating section 502. The spacing between adjacent turns of the third heating section 503 is smaller than the spacing between adjacent turns of the first heating section 501. The number of turns of the coils of the first heating section 501 is more than the number of turns of the coils of the third heating section 503. The number of turns of the coils of the third heating section 503 is more than the number of turns of the coils of the second heating section 502. After the heating wire is installed in the atomization core, it can make the oil inlet and oil guiding more rapid and prevent the atomizer from leaking oil. A heating cavity 302 is formed in the atomization tube 3. The wicking cotton 4 is wrapped around the outer peripheral wall of the heating wire main body 5 and then is installed in the heating cavity 302 of the atomization tube 3 together and fixed. The wicking cotton 4 is used to absorb oil for the heating wire main body 5 to heat. Two oil inlet holes 301 for oil inlet and an exhaust hole 303 for exhaust are opened on the outer wall of the atomization tube 3. The oil inlet holes 301 correspond to the second heating section 502 of the heating wire main body 5, and the exhaust hole 303 corresponds to the first heating section 501 of the heating wire main body 5. The wicking cotton 4 blocks a part of the inner sides of the oil inlet holes 301 and the exhaust hole 303. After the e-liquid enters from the oil inlet holes 301, it can be directly introduced into the wicking cotton 4. The upper end of the fixing member 6 is inserted into the heating cavity 302 of the atomization tube 3 and fixed. The bottom of the fixing member 6 is provided with a first conductive electrode 601 and a second conductive electrode 602 that are electrically connected to the first conducting wire 505 and the second conducting wire 504. An oil storage cavity 103 is formed in the oil storage chamber body 1 for storing oil. The oil sealing member 7 is installed in the oil storage chamber body 1 to seal the oil storage cavity 103. The air guiding member 8 is installed and fixed in the bottom opening of the oil storage chamber body 1. The atomization tube 3 penetrates through the air guiding member 8 and the oil sealing member 7 and extends into the oil storage cavity 103, and the fixing member 6 fixed at the lower end of the atomization tube 3 is located in the air guiding member 8. The oil sealing member 7 is wrapped around the outer peripheral wall of the atomization tube 3 and blocks a part of the outer side of the exhaust hole 303. A gap channel is formed between the exhaust hole 303, the outer wall of the wicking cotton 4, and the inner wall of the oil sealing member 7. External air can enter the smoke guiding tube 102 from the smoking port 101, then enter the heating cavity 302, then enter the gap channel through the lower end of the exhaust hole 303, and finally enter the oil storage cavity 103 through the upper end of the exhaust hole 303 to maintain the air pressure balance in the oil storage cavity 103 to promote oil guiding.A smoking port 101 is provided at the top of the oil storage tank body 1 for smoking. A smoke guide pipe 102 protrudes from the smoking port 101 into the oil storage cavity 103 to realize smoke exhaust. The smoke guide pipe 102 communicates with the smoking port 101. The upper end of the atomization pipe 3 is inserted into the smoke guide pipe 102, and the smoke guide pipe 102 communicates with the heating cavity 302 to realize smoke guiding. A sealing sleeve 2 is installed to seal between the outer peripheral wall of the upper end of the atomization pipe 3 and the inner peripheral wall of the smoke guide pipe 102. The bottom of the air guiding member 8 is provided with an oil injection channel 801 communicating with the oil storage cavity 103 for oil injection, and an air intake channel 802 communicating with the heating cavity 302 for air intake. An iron shell 9 is sleeved on the bottom of the oil storage tank body 1 and fixed to the oil storage tank body 1, which can be used to prevent the deformation of the oil storage tank body 1. Among them, the number of turns of the coil of the first heating section 501 is 8.4 turns, the distance d2 between two adjacent turns of the coil of the first heating section 501 is 0.346 mm, the number of turns of the coil of the second heating section 502 is 2.5 turns, and the distance d1 between two adjacent turns of the coil of the second heating section 502 is 0.4 mm. The number of turns of the coil of the third heating section 503 is 4.4 turns, the distance d between two adjacent turns of the coil of the third heating section 503 is 0.221 mm, the outer diameter φ of the heating wire body 5 is 2.56 mm, the height H of the heating wire body 5 is 8.5 mm, and the wire diameter φ1 of each turn of the coil of the first heating section 501, the second heating section 502 and the third heating section 503 is 0.28 mm.,

[0078] As Figure 7 shown, the air flow direction of the atomizer is shown in a specific embodiment of the present invention. When smoking, the air flow can enter the heating cavity 302 of the atomization pipe 3 from the air intake channel 802 at the bottom of the air guiding member 8, drive the heating wire body 5 to heat the e-liquid in the wick 4 to generate smoke, then the smoke enters the smoke guide pipe 102, and finally is inhaled from the smoking port 101.

[0079] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An atomization core, comprising an atomization core body, a heating cavity is formed in the atomization core body, a heating wire is arranged in the heating cavity, and at least one oil inlet hole is formed in the atomization core body. The heating wire includes a heating wire body, and the heating wire body includes a first heating section and a second heating section connected to each other. The second heating section is configured to correspond to the at least one oil inlet hole. The first heating section and the second heating section are respectively composed of coils that are adjacent to each other with a spacing therebetween and are in a spiral shape. And the spacing between adjacent turns of the first heating section is smaller than the spacing between adjacent turns of the second heating section, and the number of turns of the coils of the first heating section is more than the number of turns of the coils of the second heating section.

2. The atomization core according to claim 1, wherein, the heating wire body further includes a third heating section, the third heating section is composed of coils that are adjacent to each other with a spacing therebetween and are in a spiral shape, and the third heating section and the first heating section are respectively connected to two ends of the second heating section.

3. The atomization core according to claim 2, wherein, the first heating section, the second heating section and the third heating section are configured to be arranged in sequence along the air flow direction. The number of turns of the coils of the third heating section is less than the number of turns of the coils of the first heating section, and the number of turns of the coils of the third heating section is more than the number of turns of the coils of the second heating section. The spacing between adjacent turns of the third heating section is smaller than the spacing between adjacent turns of the first heating section.

4. The atomization core according to claim 3, wherein, the first heating section and the third heating section are respectively connected to the second heating section by welding connection, riveting connection, winding connection, pasting connection, contact connection or integral molding process.

5. The atomization core according to any one of claims 2-4, wherein, at least one first wire for conducting electricity is connected to the end of the first heating section departing from the second heating section, and at least one second wire for conducting electricity is connected to the end of the third heating section departing from the second heating section.

6. The atomization core according to claim 5, wherein, the at least one first wire is connected to the first heating section by welding connection, riveting connection, winding connection, pasting connection, contact connection or integral molding process, and the at least one second wire is connected to the third heating section by welding connection, riveting connection, winding connection, pasting connection, contact connection or integral molding process.

7. The atomization core according to any one of claims 2-4, wherein, the number of turns of the coils of the first heating section is 6.3-10.6 turns, and the spacing between adjacent turns of the first heating section is 0.146-0.546 mm; the number of turns of the coils of the second heating section is 1.0-5.0 turns, and the spacing between adjacent turns of the second heating section is 0.2-0.8 mm; the number of turns of the coils of the third heating section is 2.2-6.6 turns, and the spacing between adjacent turns of the third heating section is 0.01-0.3 mm.

8. The atomizing core according to any one of claims 2-4, wherein, the wire diameter of each turn of the coil of the first heating section, the second heating section and the third heating section is 0.1-0.4 mm.

9. The atomizing core according to any one of claims 1-4, wherein, the outer diameter of the heating wire body is 1.0-4.0 mm; the height of the heating wire body is 4.5-12.5 mm.

10. The atomizing core according to any one of claims 2-4, wherein, the coils of the first heating section, the second heating section and the third heating section are all made of a metal material.

11. The atomizing core according to claim 10, wherein, the atomizing core body includes an atomizing tube and wicking cotton. The heating cavity is formed inside the atomizing tube. At least one oil inlet hole and at least one exhaust hole for exhausting gas are provided on the outer wall of the atomizing tube. The at least one exhaust hole corresponds to the first heating section of the heating wire body. The wicking cotton is wrapped outside the heating wire body, and the wicking cotton blocks one side of the at least one oil inlet hole and the at least one exhaust hole.

12. The atomizing core according to claim 11, wherein, the exhaust hole is linear, and one end of the exhaust hole communicates with the oil inlet hole or / and the oil storage cavity configured to communicate with the oil inlet hole, and the other end of the exhaust hole communicates with the heating cavity.

13. The atomizing core according to claim 1, wherein, the atomizing core body further includes a fixing member. One end of the fixing member is inserted into the heating cavity, and a first conductive electrode and a second conductive electrode electrically connected to the heating wire are provided at the end of the other end of the fixing member.

14. An atomizer, comprising an atomizer body. An oil storage cavity is formed inside the atomizer body. The atomizing core according to any one of claims 1-13 for atomizing e-liquid is provided in the oil storage cavity.

15. The atomizer according to claim 14, wherein, the atomizer body includes an oil storage chamber body. An oil storage cavity is formed inside the oil storage chamber body. A smoking port for smoking is provided at one end of the oil storage chamber body. A smoke guiding tube protrudes from the smoking port into the oil storage cavity in the atomizer body. The smoke guiding tube communicates with the smoking port. One end of the atomizing core away from the base is inserted into the smoke guiding tube. The smoke guiding tube communicates with the heating cavity. A sealing member for sealing the oil storage cavity is provided between the outer peripheral wall of the atomizing core and the inner peripheral wall of the oil storage chamber body; a gas guiding member is provided at one end of the oil storage chamber body away from the smoking port. One end of the gas guiding member abuts against the sealing member. An oil injection channel communicating with the oil storage cavity and an air intake channel communicating with the heating cavity are provided at the other end of the gas guiding member. The oil injection channel is used for injecting oil, and the air intake channel is used for intake.

16. An electronic cigarette, comprising the atomizer according to claim 14 or 15.

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