Patent Application
20230129267
This application claims to the priority of Chinese Patent Application No. 2021112263830, filed on Oct. 21, 2021, the entire content of which is incorporated herein by reference.
The present disclosure relates to the field of electronic cigarettes, in particular to a heating assembly and a manufacturing method thereof.
At present, as a substitute for tobacco, electronic cigarettes are deeply loved by smokers. The electronic cigarette mainly includes a cartridge and a main body. The cartridge is mounted in an opening of an upper part of the main body. The main body is equipped with a circuit board, a battery, and a support therein. The battery and the circuit board are mounted on the support. An upper part of the support is provided with terminals. The terminals are exposed on an upper surface of the main body. The battery is connected to the circuit board, and the circuit board is connected to the terminals. An atomizing core is disposed in the cartridge. An upper part of the atomizing core is in communication with a nozzle through a smoke channel. A bottom of the atomizing core is provided with a spring needle. An upper part of the spring needle is connected to the atomizing core, and a lower part of the spring needle is connected to the terminal to achieve an electrical connection. The battery powers the atomizing core, and the circuit board controls the atomizing core to operate.
The current atomizing core are of two types. One atomizing core is a cotton core, which is generally formed by wrapping the oil-guiding cotton around a periphery of a helical heating wire. An outer surface of the oil-guiding cotton is soaked in e-liquid in the cartridge. Due to the limitation of the pitch of the helical heating wire, the distance between the adjacent helical turns is relatively large, and a contact part between the heating wire and the oil-guiding cotton is hot, and the temperature of a non-contact part between the heating wire and the oil-guiding cotton is low, resulting in uneven temperature inside the oil-guiding cotton and uneven heating of the e-liquid. In addition, an assembly process of this oil-guiding cotton and the heating wire can easily cause the contact between the oil-guiding cotton and the heating wire to be loose. In addition, during the assembly process, firstly, the oil-guiding cotton is wrapped on the periphery of the bent heating wire. After wrapping the oil-guiding cotton, the excess oil-guiding cotton at both ends is cut off. As such, at least half of the length of one oil-guiding cotton is cut off, and the cut part cannot be reused, resulting in a waste of the oil-guiding cotton.
The other atomizing core is a ceramic core, which is generally a combination of a ceramic and a heating wire. The heating wire is sintered on a lower surface of the ceramic, and the heating wire is partially exposed on the lower surface of the ceramic. An oil inlet groove is provided on an upper surface of the ceramic. This atomizing core needs to be subject to a sintering process. During the sintering process, firstly, the heating wire is disposed on a lower surface of a ceramic prototype, in which the heating wire cannot be completely covered by the ceramic, but needs to be half buried and half exposed. The ceramic is sintered at a temperature of about 1200 degrees. The process of this one-piece ceramic core seems to be simple, but in fact, the process is difficult to control; and if any element on the ceramic core is subsequently damaged, the entire ceramic core needs to be replaced.
According to various embodiments of the present disclosure, a heating assembly and a manufacturing method thereof are provided, which have the characteristics of simple structure, convenient operation, and strong practicability.
The present disclosure provides a heating assembly, which includes:
a lower base, an upper part of the lower base being provided with two supporting parts that are oppositely arranged;
a heating element including a heating part and electrode parts, and the heating part is made of a woven mesh, and the woven mesh includes heating wires arranged in parallel; two ends of each of the heating wires are connected to the two electrode parts, respectively; the heating wires are connected to each other by fixing wires; the fixing wires are arranged in parallel with the electrode parts, and the electrode parts are arranged at opposite ends of the heating part; the electrode parts abut against the supporting parts;
an oil-guiding cotton abutting against an upper surface of the heating part; and
an upper base fastened to the upper part of the lower base to fix the heating element and the oil-guiding cotton.
In one of the embodiments, a mesh hole is provided between two adjacent heating wires and between two adjacent fixing wires connected to the two adjacent heating wires. The oil-guiding cotton is exposed to the mesh hole.
In one of the embodiments, the oil-guiding cotton has a hardness, of which the value is listed. The oil-guiding cotton is deformed when being pressed by an external force, and maintains its original shape when being not pressed by an external force. A silicone sleeve is sleeved on an upper part of the oil-guiding cotton. The silicone sleeve includes a top surface and a side surface. The side surface is bent and extended downward from the top surface. The top surface is provided with an oil-passing hole. The oil-guiding cotton is exposed to the oil-passing hole. The side surface is arranged between an inner side of the upper base and an outer side of the oil-guiding cotton.
In one of the embodiments, the fixing wires are bent upward to extend to form a fixing part. The fixing part is partially inserted into the oil-guiding cotton to fix the oil-guiding cotton.
A manufacturing method of a heating assembly, including:
a), providing a lower base;
b), arranging a heating element on an upper part of the lower base;
c), arranging an oil-guiding cotton on an upper surface of the heating element; and
d), arranging an upper base above the oil-guiding cotton, moving the upper base downward or moving the lower base upward, and the upper base is fastened to the lower base, to fix the oil-guiding cotton and the heating element between the upper base and the lower base.
In one of the embodiments, in step a), the upper part of the lower base is provided with two supporting parts that are oppositely arranged. The two supporting parts are located at a same height. In step b), the heating element includes a heating part and electrode parts. The heating part is made of a woven mesh. The woven mesh includes heating wires arranged in parallel. Two ends of each of the heating wires are connected to the two electrode parts, respectively. The heating wires are connected to each other by fixing wires. The fixing wires are arranged in parallel with the electrode parts. The electrode parts are arranged at opposite ends of the heating part. The electrode parts are arranged on upper surfaces of the supporting parts.
In one of the embodiments, in step c), the oil-guiding cotton is deformed when being pressed by an external force, and maintains its original shape when being not pressed by an external force. The fixing wires are bent upward to extend to form a fixing part. After the oil-guiding cotton is arranged on an upper surface of the heating part, the fixing part is pressed inward, and the fixing part enters the oil-guiding cotton to fix the oil-guiding cotton.
In one of the embodiments, in step c), after the oil-guiding cotton is arranged on the upper surface of the heating part, a silicone sleeve is provided. The silicone sleeve includes a top surface and a side surface. The side surface is bent and extended downward from the top surface. The top surface is provided with an oil-passing hole. The silicone sleeve is mounted on an upper part of the oil-guiding cotton, and the oil-guiding cotton is exposed to the oil-passing hole. The side surface covers an outer side surface of the oil-guiding cotton.
In one of the embodiments, in step d), the upper base is fastened to the lower base, and an inner side of the upper base presses the top surface and the side surface. The top surface presses the oil-guiding cotton to press the oil-guiding cotton downward and a lower surface of the oil-guiding cotton is in close contact with the heating element. The side surface is pressed by the inner side of the upper base and an outer side surface of the oil-guiding cotton, and a sealing between the inner side of the upper base and the oil-guiding cotton is realized.
A manufacturing method of a heating assembly includes:
(1), providing an upper base, and arranging an opening of the upper base upward;
(2), arranging an oil-guiding cotton in the opening of the upper base;
(3), arranging a heating element on an upper part of the oil-guiding cotton; and
(4), fastening a lower base to the upper base to fix the heating element and the oil-guiding cotton between the upper base and the lower base.
In one of the embodiments, the manufacturing method further includes: after step (1), providing a silicone sleeve. The silicone sleeve includes a top surface and a side surface. The side surface is bent and extended downward from the top surface. The top surface is provided with an oil-passing hole. After the silicone sleeve is mounted on the opening of the upper base, the oil-guiding cotton is mounted in the silicone sleeve, and the side surface covers the oil-guiding cotton.
In one of the embodiments, in step (3), the heating element includes a heating part and electrode parts. The heating part is made of a woven mesh. The woven mesh includes heating wires arranged in parallel. Two ends of each of the heating wires are connected to two electrode parts, respectively. The heating wires are connected to each other by fixing wires. The fixing wires are arranged in parallel with the electrode parts. The electrode parts are arranged at opposite ends of the heating part. The heating part is arranged on an upper surface of the oil-guiding cotton.
In one of the embodiments, an upper part of the lower base is provided with two supporting parts that are oppositely arranged. The two supporting parts are located at a same height. When the supporting parts are aligned with the electrode parts, and the upper base is fastened to the lower base, the electrode parts and the supporting parts are tightly pressed, and the oil-guiding cotton and the heating part are tightly pressed.
The heating assembly of the present disclosure includes: a lower base, an upper part of the lower base being provided with two supporting parts that are oppositely arranged; a heating element including a heating part and electrode parts, and the heating part is made of a woven mesh, and the woven mesh includes heating wires arranged in parallel, and two ends of each of the heating wires are connected to the two electrode parts, respectively, the heating wires are connected to each other by fixing wires, and the fixing wires are arranged in parallel with the electrode parts, the electrode parts are arranged at opposite ends of the heating part, the electrode parts abut against the supporting parts; an oil-guiding cotton abutting against an upper surface of the heating part; and an upper base fastened to the upper part of the lower base to fix the heating element and the oil-guiding cotton. The heating assembly has a simple structure, and adopts the cooperation of the oil-guiding cotton and the woven mesh. The mesh-like structure of the woven mesh itself can not only cause the oil-guiding cotton to be in close contact with the woven mesh, but also can heat the oil-guiding cotton evenly.
In addition, the manufacturing method of the heating assembly according to the present disclosure includes: providing a lower base; arranging a heating element on an upper part of the lower base; arranging an oil-guiding cotton on an upper surface of the heating element; and arranging an upper base above the oil-guiding cotton, moving the upper base downward or moving the lower base upward, and the upper base is fastened to the lower base, to fix the oil-guiding cotton and the heating element between the upper base and the lower base. The assembly between the oil-guiding cotton and the heating element is simple. The oil-guiding cotton is attached to the heating element, and then the upper base and the lower base are fastened to each other to complete the assembly of the heating assembly. The processing procedure is simplified and the manufacturing process is simple. Compared with the conventional ceramic process, high temperature sintering is avoided, and the determination of the relative position between the heating wires and the ceramic is avoided.
In order to illustrate the embodiments of the present disclosure more clearly, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Apparently, the accompanying drawings in the following description are only some embodiments of the present disclosure.
The embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments.
As shown in
A heating element 2 includes a heating part 25 and electrode parts 22. The heating part 25 is made of a woven mesh, and the woven mesh includes heating wires 21 arranged in parallel. Two ends of each of the heating wires 21 are connected to the two electrode parts 22, respectively. The heating wires 21 are connected to each other by fixing wires 23. The fixing wires 23 are arranged in parallel with the electrode parts 22, and the electrode parts 22 are arranged at opposite ends of the heating part 25. The electrode parts 22 abut against the supporting parts 11. The heating part 25 is a metal woven mesh formed by random weaving of metal wires. The metal wires are made of one of gold, silver, copper, tungsten, stainless steel, iron chromium alloys, nickel-chromium alloys, and titanium alloys. In the embodiment of the present disclosure, the heating part 25 adopts the metal woven mesh, which can increase the contact area with e-liquid, and the e-liquid on an oil-guiding cotton is uniformly atomized, and the atomization area is maximized, and thus a smaller output power can achieve good smoke volume effect, saving energy and reducing consumption.
An oil-guiding cotton 3 abuts against an upper surface of the heating part 25. The oil-guiding cotton 3 has a strength. The oil-guiding cotton 3 is also called an oil storage cotton. The oil-guiding cotton 3 itself has a function of absorbing the e-liquid, and also a function of storing the e-liquid. Under normal conditions, the oil-guiding cotton 3 can hold the e-liquid to prevent the e-liquid from falling off from the oil-guiding cotton 3. When the amount of the e-liquid in the oil-guiding cotton 3 decreases, the oil-guiding cotton 3 can also absorb external e-liquid.
An upper base 5 is fastened to the upper part of the lower base 1 to fix the heating element 2 and the oil-guiding cotton 3. The upper base 5 is made of plastic material. The upper base 5 and the lower base 1 are connected by means of engaging. For example, the upper base 5 is provided with an elastic arm, and the lower base 1 is provided with an engaging hole. When the elastic arm of the upper base 5 enters the engaging hole, the engaging is completed. When a separation is required, the elastic arm is separated from the engaging hole, and the upper base 5 is separated from the lower base 1.
A mesh hole 26 is provided between two adjacent heating wires 21 and between two adjacent fixing wires 23 connected to the two adjacent heating wires 21. In other words, heating wires 21 arranged in parallel, and are connected between the two electrode parts 22; the fixing wire 23 is connected to two adjacent heating wires 21, and the mesh hole 26 is enclosed by two adjacent heating wires 21 and two adjacent fixing wires 23. The oil-guiding cotton 3 is exposed to the mesh holes 26, and the oil-guiding cotton 3 can be closely attached to the mesh holes 26, resulting in even heating. In addition, the mesh holes 26 can further increase the flow of air flow. On the one hand, the air flow from the outside can easily enter the inner side of the mesh holes 26, and exchange heat with the hot air flow at the inner side. On the other hand, the gas generated after heating can be also easily volatilized through the mesh holes 26. This three-dimensional woven mesh itself is uneven in height, and a contact portion of the woven mesh and the oil-guiding cotton 3 is also uneven. This uneven woven mesh is convenient for contact stability, and the oil-guiding cotton 3 is prevented from sliding with respect to the woven mesh.
The oil-guiding cotton 3 has a hardness and strength. The oil-guiding cotton 3 is made of polyethylene terephthalate (PET), polyester fiber, high-density cotton 4000#, or the like. The hardness of the oil-guiding cotton 3 is 50A-90A. The oil-guiding cotton 3 is deformed when being pressed by an external force, and maintains its original shape when being not pressed by an external force. A silicone sleeve 4 is sleeved on an upper part of the oil-guiding cotton 3. The silicone sleeve 4 includes a top surface and a side surface. The side surface is bent and extended downward from the top surface. The top surface is provided with an oil-passing hole. The oil-guiding cotton 3 is exposed to the oil-passing hole. The side surface is arranged between an inner side of the upper base 5 and an outer side of the oil-guiding cotton 3.
When the fixing wires 23 are steel wires, the fixing wires 23 can strengthen the fixing and increase the strength of the woven mesh itself. The fixing wires 23 of the woven mesh can also be appropriately extended. The fixing wires 23 are bent upward to extend to form a fixing part. The fixing part is partially inserted into the oil-guiding cotton 3 to fix the oil-guiding cotton 3, which can prevent the oil-guiding cotton 3 from being separated from the woven mesh, especially when the woven mesh is easily separated from the oil-guiding cotton 3 due to the thermal expansion principle during the heating process in which the woven mesh generates heat. Due to the existence of the fixing part, the separation of the oil-guiding cotton 3 from the woven mesh can be avoided.
A first assembling process of a heating assembly, that is, a manufacturing method of a heating assembly is provided, and includes the following steps.
a), providing a lower base 1;
b), arranging a heating element 2 on an upper part of the lower base 1;
c), arranging an oil-guiding cotton 3 on an upper surface of the heating element 2; and
d), arranging an upper base 5 above the oil-guiding cotton 3, moving the upper base 5 downward or moving the lower base 1 upward, and the upper base 5 is fastened to the lower base 1, to fix the oil-guiding cotton 3 and the heating element 2 between the upper base 5 and the lower base 1.
In step a), the upper part of the lower base 1 is provided with two supporting parts 11 that are oppositely arranged. The two supporting parts 11 are located at the same height. In step b), the heating element 2 includes a heating part 25 and electrode parts 22. The heating part 25 is made of a woven mesh. The woven mesh includes heating wires 21 arranged in parallel. Two ends of each of the heating wires 21 are connected to the two electrode parts 22, respectively. The heating wires 21 are connected to each other by fixing wires 23. The fixing wires 23 are arranged in parallel with the electrode parts 22. The electrode parts 22 are arranged at opposite ends of the heating part 25. The electrode parts 22 are arranged on upper surfaces of the supporting parts 11.
In step c), the oil-guiding cotton 3 is deformed when being pressed by an external force, and maintains its original shape when being not pressed by an external force. The fixing wires 23 are bent upward to extend to form a fixing part. After the oil-guiding cotton 3 is arranged on the upper surface of the heating part 25, the fixing part is pressed inward, and the fixing part enters the oil-guiding cotton 3 to fix the oil-guiding cotton 3.
In step c), after the oil-guiding cotton 3 is arranged on the upper surface of the heating part 25, a silicone sleeve 4 is provided. The silicone sleeve 4 includes a top surface and a side surface. The side surface is bent and extended downward from the top surface. The top surface is provided with an oil-passing hole. The silicone sleeve 4 is mounted on the upper part of the oil-guiding cotton 3, and the oil-guiding cotton 3 is exposed to the oil-passing hole. The side surface covers an outer side surface of the oil-guiding cotton 3.
In step d), the upper base 5 is fastened to the lower base 1, and an inner side of the upper base 5 presses the top surface and the side surface. The top surface presses the oil-guiding cotton 3 to press the oil-guiding cotton 3 downward and a lower surface of the oil-guiding cotton 3 is in close contact with the heating element 2. The side surface is pressed by the inner side of the upper base 5 and the outer side surface of the oil-guiding cotton 3, and the sealing between the inner side of the upper base 5 and the oil-guiding cotton 3 can be achieved. The silicone sleeve 4 may be used. Of course, in other designs, the silicone sleeve 4 may not be used, and the upper base may be directly fastened to the lower base.
Through the process of the present disclosure, the heating assembly can be assembled quickly, especially the assembly between the heating element and the oil-guiding cotton can be completed quickly, in which the oil-guiding cotton can be directly arranged on the surface of the heating element. Compared with the conventional cotton wrapping process, the manufacturing process of the present disclosure is greatly simplified.
A second assembling process of a heating assembly, that is, a manufacturing method of a heating assembly is as follows, and includes:
(1), providing an upper base 5, and arranging an opening of the upper base 5 upward;
(2), arranging an oil-guiding cotton 3 in the opening of the upper base 5;
(3), arranging a heating element 2 on an upper part of the oil-guiding cotton 3; and
(4), fastening a lower base 1 to the upper base 5 to fix the heating element 2 and the oil-guiding cotton 3 between the upper base 5 and the lower base 1.
After step (1), a silicone sleeve 4 is provided. The silicone sleeve 4 includes a top surface and a side surface. The side surface is bent and extended downward from the top surface. The top surface is provided with an oil-passing hole. After the silicone sleeve 4 is mounted on the opening of the upper base 5, the oil-guiding cotton 3 is mounted in the silicone sleeve 4, and the side surface covers the oil-guiding cotton 3.
In step (3), the heating element 2 includes a heating part 25 and electrode parts 22. The heating part 25 is made of a woven mesh. The woven mesh includes wires 21 arranged in parallel. Two ends of each of the heating wires 21 are connected to two electrode parts 22, respectively. The heating wires 21 are connected to each other by fixing wires 23. The fixing wires 23 are arranged in parallel with the electrode parts 22. The electrode parts 22 are arranged at the opposite ends of the heating part 25. The heating part 25 is arranged on an upper surface of the oil-guiding cotton 3.
An upper part of the lower base 1 is provided with two supporting parts 11 that are oppositely arranged. The two supporting parts 11 are located at the same height. When the supporting parts 11 are aligned with the electrode parts 22, and the upper base 5 is fastened to the lower base 1, the electrode parts 22 and the supporting parts 11 are tightly pressed, and the oil-guiding cotton 3 and the heating part 25 are tightly pressed.
The second assembling process has the same principle as the first assembling process, except that the assembling directions are opposite to each other. That is, the upper base 5, the oil-guiding cotton 3, the heating element 2, and the lower base 1 can be mounted upside down, and the heating assembly of the present disclosure can also be obtained.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202111226383.0 | Oct 2021 | CN | national |
