Heating top cover structure of cigarette cartridge and manufacturing method thereof

Abstract

The present invention provides a heating top cover structure of a cigarette cartridge, comprising a base, a sealing part and a liquid collecting part. The sealing part and the liquid collecting part are arranged on the base. The base has a smoke oil channel and a smoke gas channel. The sealing part is arranged on the top of the base, and the edge of the sealing part is used to seal and abut with the inner wall of the shell cover. The liquid collecting part is arranged around the side wall of the base, and a plurality of annular liquid collecting grooves are opened on the side of the liquid collecting part, and each annular liquid collecting groove is arranged around the base. The sealing part and the liquid collecting part are both made of silicone. The heating top cover structure of the cigarette cartridge improves the sealing performance and further delays the leakage of the smoke oil. The present invention also provides a method for manufacturing the heating top cover structure of the cigarette cartridge, using an injection molding machine to perform an injection molding process to obtain a base. The base is placed in a mold, and a liquid silicone injection molding process is used to obtain a sealing part and a liquid collecting part coated on the base, thereby obtaining the heating top cover structure of the cigarette cartridge. The production process is simple and convenient, which improves production efficiency and reduces production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to a heating top cover structure of a cigarette cartridge and a manufacturing method thereof. Background Art

[0002] An electronic cigarette is an electronic product that imitates cigarettes and has the same appearance, smoke, taste and feel as cigarettes. In the prior art, an electronic cigarette generally includes a cigarette rod shell, a battery holder, a circuit board, a battery and a cigarette cartridge (the cigarette cartridge is also called an atomizer). The battery holder, the circuit board and the battery are housed in the cigarette rod shell, and the circuit board and the battery are mounted on the battery holder. The cigarette cartridge is partially inserted into the opening of the cigarette rod shell and is detachably connected. The cigarette cartridge is electrically connected to the circuit board by abutting contact. Specifically, a marble is provided on the end face of the battery holder, and the marble is electrically connected to the circuit board. The cigarette cartridge is electrically connected to the circuit board by contact with the marble. The battery supplies power to the circuit board, and the circuit board supplies power to the cigarette cartridge to atomize the tobacco oil contained in the cigarette cartridge, thereby generating smoke for the user to inhale.

[0003] The cartridge includes a heating component and a shell cover. The heating component is arranged on the shell cover. The smoke oil is stored in the shell cover. The shell cover also has a mouthpiece. The heating component is used to atomize the smoke oil for the user to inhale. The heating component includes a heating top cover, a heating element, and a heating base. The smoke oil enters the heating element through the cavity of the heating top cover. When the heating base contacts the pins of the battery holder, the heating base will be powered on to conduct the heating element to atomize the smoke oil on the heating element. The smoke will pass through the smoke channel of the heating top cover and overflow from the mouthpiece.

[0004] However, for the existing heating top cover structure, the plastic part of the heating top cover is provided with a liquid collecting sheet structure to collect the smoke oil leaking from the edge of the shell cover and the heating top cover. However, the liquid collecting effect is poor and it is difficult to effectively delay the leakage of smoke oil. In addition, the liquid collecting sheet structure is provided on the plastic part, which is complicated to produce and process, difficult to manufacture, and has high production cost. Summary of the invention

[0005] Based on this, it is necessary to provide a heating top cover structure of a cigarette cartridge and a manufacturing method thereof to address the technical problems of poor anti-leakage effect and high manufacturing difficulty.

[0006] A heating top cover structure of a cigarette cartridge, the heating top cover structure of the cigarette cartridge comprising: a base, a sealing part and a liquid collecting part. The sealing part and the liquid collecting part are arranged on the base. The base has a smoke oil channel and a smoke channel. The sealing part is arranged on the top of the base, and the edge of the sealing part is used to seal and abut with the inner wall of the shell cover. The liquid collecting part is arranged around the side wall of the base, and a plurality of annular liquid collecting grooves are opened on the side of the liquid collecting part, and each of the annular liquid collecting grooves is arranged around the base. The sealing part and the liquid collecting part are both made of silicone.

[0007] In one embodiment, the sealing portion and the liquid collecting portion are integrally formed.

[0008] In one embodiment, the base body is provided with a valve hole on the inner wall of the smoke oil channel, and the valve hole penetrates the base body and the liquid collecting portion. The sealing portion is provided with a valve cover, and the valve cover is closely attached to the base body on the inner wall of the smoke oil channel, and the valve cover can movably cover the valve hole.

[0009] In one embodiment, the sealing portion and the valve cover are both made of silicone and are integrally formed.

[0010] In one of the embodiments, the heating top cover structure of the cigarette cartridge further includes a heat insulating portion, and the heat insulating portion is arranged on the base at the output end of the cigarette oil channel.

[0011] In one embodiment, the heat insulating portion, the sealing portion and the liquid collecting portion are all made of silicone and are integrally formed.

[0012] In one embodiment, the base is provided with at least one connecting hole, and the heat insulating part is connected to the liquid collecting part through the connecting hole.

[0013] In one embodiment, the substrate is made of plastic.

[0014] Another object of the present invention is to provide a method for manufacturing a heating top cover structure of a cigarette cartridge, which is achieved through the following technical solutions:

[0015] A method for manufacturing a heating top cover structure of a cigarette cartridge comprises the following steps:

[0016] Step 1: Perform an injection molding process using an injection molding machine to obtain the substrate.

[0017] Step 2: Place the substrate into a mold and use a liquid silicone injection molding process to obtain the sealing portion and the liquid collecting portion coated on the substrate, thereby obtaining the heating top cover structure of the cigarette cartridge.

[0018] In one embodiment, the sealing portion and the liquid collecting portion are formed by integral injection molding.

[0019] The heating top cover structure of the above-mentioned cigarette cartridge carries the sealing part and the liquid collecting part through the base body, and uses the edge part of the sealing part to seal and abut against the inner wall of the shell cover to prevent the oil in the shell cover from leaking. The tobacco oil leaking from the edge part of the sealing part and the inner wall of the shell cover is collected by each annular liquid collecting groove of the liquid collecting part. The leaked tobacco oil will be poured into each annular liquid collecting groove, thereby effectively delaying the leakage of tobacco oil. The characteristic of silica gel that it is easy to absorb grease is utilized to improve the collection effect of the leaked tobacco oil. Since the liquid collecting part made of silica gel is easy to process and manufacture, it is easy to make a thin liquid collecting part, and it is easy to increase the depth of each annular liquid collecting groove, that is, to further delay the leakage of tobacco oil. The manufacturing method of the heating top cover structure of the cigarette cartridge first makes the base body by injection molding process, and then makes the sealing part and the liquid collecting part on the base body by liquid silicone injection molding process. The production process is simple and convenient, which greatly improves the production efficiency and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the heating top cover structure of the cigarette cartridge in one embodiment;

[0021] Figure 2 A schematic structural diagram of a heating top cover structure of a cigarette cartridge in one embodiment from another perspective;

[0022] Figure 3 It is a structural schematic diagram of the heating top cover structure of the cigarette cartridge in another perspective in one embodiment;

[0023] Figure 4 This is a schematic structural diagram of a base body of a heating top cover structure of a cigarette cartridge in one embodiment;

[0024] Figure 5 Another structural schematic diagram of the base of the heating top cover structure of the cigarette cartridge in one embodiment;

[0025] Figure 6 It is a partial structural schematic diagram of the heating top cover structure of the cigarette cartridge in one embodiment;

[0026] Figure 7 It is a partial structural schematic diagram of the heating top cover structure of the cigarette cartridge in another embodiment;

[0027] Figure 8 It is a partial structural schematic diagram of the heating top cover structure of the cigarette cartridge in another embodiment;

[0028] Fig. 9 This is a schematic diagram of the structure of a cigarette cartridge in one embodiment;

[0029] Fig.10 It is a schematic diagram of the structural disassembly of a cigarette cartridge in one embodiment. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central 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 a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Please also read Figures 1 to 10 The present invention provides a heating top cover structure 10 of a cigarette cartridge, and the heating top cover 10 structure of the cigarette cartridge includes: a base 100, a sealing part 200 and a liquid collecting part 300. The sealing part 200 and the liquid collecting part 300 are arranged on the base 100. The base 100 has a smoke oil channel 110 and a smoke channel 120. The sealing part 200 is arranged on the top of the base 100, and the edge part of the sealing part 200 is used to seal and abut with the inner wall of the shell cover 40. The liquid collecting part 300 is arranged around the side wall of the base 100, and a plurality of annular liquid collecting grooves 310 are opened on the side of the liquid collecting part 300, and each annular liquid collecting groove 310 is arranged around the base 100. The sealing part 200 and the liquid collecting part 300 are both made of silicone.

[0037] The heating top cover structure 10 of the above-mentioned cigarette cartridge carries the sealing part 200 and the liquid collecting part 300 through the base 100, and uses the edge of the sealing part 200 to seal and abut against the inner wall of the shell cover 40 to prevent the oil in the shell cover 40 from leaking. The oil leaking from the edge of the sealing part 200 and the inner wall of the shell cover 40 is collected by each annular liquid collecting groove 310 of the liquid collecting part 300. The leaked oil will be poured into each annular liquid collecting groove 310, thereby effectively delaying the leakage of the oil. The property of silica gel that it is easy to absorb grease is used to improve the collection effect of the leaked oil. Since the liquid collecting part 300 made of silica gel is easy to process and manufacture, it is easy to make a thin liquid collecting part 300, and it is easy to increase the depth of each annular liquid collecting groove 310, that is, to further delay the leakage of the oil.

[0038] The base 100 is used to carry the sealing part 200 and the liquid collecting part 300. In one embodiment, the base 100 is made of plastic. The smoke oil stored in the shell cover 40 of the cigarette cartridge enters the heating element 30 through the base 100. Specifically, the smoke oil flows to the heating element 30 through the smoke oil channel 110 of the base 100. In this embodiment, the smoke oil channel 110 has two input ends and is located at the top of the base 100, and the smoke oil channel 110 has an output end and is located at the bottom of the base 100, that is, the smoke channel 120 is a Y-shaped channel structure. The smoke oil on the heating element 30 will be atomized by the heating base 20 to generate smoke, and the smoke will be sent to the mouthpiece of the shell cover 40 along the smoke channel 120 on the base 100 for the user to inhale. The heating element 30 can be a heating ceramic, and the smoke oil will penetrate the heating ceramic, so that it will be atomized by the heating base 20 to generate smoke. In one embodiment, smoke generated by atomization of the smoke oil on the heating element 30 enters the smoke channel 120 from the heating base 20 through both sides of the base 100, and overflows from the output end of the smoke channel 120 at the top of the base 100. Specifically, the output end of the smoke channel 120 is located between the two input ends of the smoke oil channel 110.

[0039] The sealing part 200 is used to be sealed with the shell cover 40 to prevent the oil in the shell cover 40 from spilling out. Specifically, the edge of the sealing part 200 is sealed against the inner wall of the shell cover 40, thereby achieving structural sealing and preventing the oil in the shell cover 40 from spilling out. In this embodiment, the sealing part 200 is inserted into the top of the base 100, and only the two input ends of the oil channel 110 and the output end of the smoke channel 120 of the base 100 are exposed, thereby ensuring the connection stability between the sealing part 200 and the base 100.

[0040] The liquid collecting part 300 is used to delay the leakage of the smoke oil from the edge of the sealing part 200 and the inner wall of the shell cover 40. Specifically, the smoke oil leaking from the edge of the sealing part 200 and the inner wall of the shell cover 40 is collected by each annular liquid collecting groove 310 of the liquid collecting part 300. The leaked smoke oil will be poured into each annular liquid collecting groove 310, thereby effectively delaying the leakage of the smoke oil. The characteristic of silica gel that it is easy to absorb grease is utilized to improve the collection effect of the leaked smoke oil. Since the liquid collecting part 300 made of silica gel is easy to process and manufacture, it is easy to make a thin liquid collecting part 300, and it is easy to increase the depth of each annular liquid collecting groove 310, giving full play to the capillary phenomenon, so that condensed water and smoke oil are not easy to leak out, that is, the leakage of the smoke oil is further delayed.

[0041] Furthermore, in order to reduce the number of parts of the heating top cover structure, improve the manufacturing convenience, reduce the production difficulty, and enhance the installation stability of the liquid collecting part 300. In one embodiment, the sealing part 200 and the liquid collecting part 300 are integrally formed. In this way, the sealing part 200 and the liquid collecting part 300 are not easy to separate, which improves the structural strength. At the same time, the sealing part 200 and the liquid collecting part 300, which are both made of rubber, are easy to manufacture and mold in the same process, which is conducive to production and manufacturing, reduces the production difficulty, and improves the convenience of manufacturing. In addition, the number of parts of the heating top cover structure is further reduced.

[0042] In one embodiment, the base 100 is provided with a valve hole 130 on the inner wall of the smoke oil channel 110, and the valve hole 130 runs through the base 100 and the liquid collecting part 300. The sealing part 200 is provided with a valve cover 210, and the valve cover 210 is close to the inner wall of the base 100 on the smoke oil channel 110, and the valve cover 210 can movably cover the valve hole 130. It should be noted that in the technical field of electronic cigarettes, the heating top cover must have a valve hole 130 to balance the internal and external atmospheric pressure so that the smoke oil can flow. At the same time, the heating top cover also has a valve cover 210 to block the smoke oil when the user does not inhale the electronic cigarette. Specifically, when the user inhales the electronic cigarette, due to the air pressure difference, the valve cover 210 will be pushed open, so that the air pressure is balanced, and the smoke oil can flow, so as to flow into the heating element 30. When the user does not inhale the electronic cigarette, the valve cover 210 will block the valve hole 130. The heating component structure and principle of the electronic cigarette cartridge can be found in the prior art and will not be described in detail here. The technical solution to be protected in this embodiment is that the valve hole 130 is provided on the inner wall of the base 100 in the smoke oil channel 110, so that the valve cover 210 can fit the valve hole 130 closely, improve the tightness, and make it difficult for the smoke oil to leak or spray out. Furthermore, in one of the embodiments, the sealing part 200 and the valve cover 210 are both made of silicone and are integrally formed. This ensures the convenience of production and the reliability of the movable connection between the sealing part 200 and the valve cover 210.

[0043] Since the heating element 30 will be turned on by the heating base 20, the heating element 30 will generate high temperature. In order to prevent the heating element 30 from melting the substrate 100, and at the same time ensure the tightness of the connection between the substrate 100 and the heating element 30 at the output end of the smoke oil channel 110. In one embodiment, the heating top cover structure of the smoke bomb also includes an insulation part 400, which is arranged at the output end of the substrate 100 at the smoke oil channel 110. The substrate 100 is connected to the heating element 30 through the insulation part 400. On the one hand, the insulation part 400 plays a sealing role to prevent the smoke oil from leaking from the gap between the substrate 100 and the heating element 30. On the other hand, the insulation part 400 plays a heat insulation role to prevent the heating element 30 from melting the substrate 100 at high temperature. Further, in one embodiment, the insulation part 400, the sealing part 200 and the liquid collecting part 300 are all made of silicone and are integrally formed. The insulation part 400 made of silicone has good heat insulation and sealing properties. In addition, the heat insulation part 400, the sealing part 200 and the liquid collecting part 300 are integrally formed, which further reduces the number of parts of the heating top cover structure, improves the manufacturing convenience, and reduces the production difficulty. In one embodiment, the base 100 is provided with at least one connecting hole 140, and the heat insulation part 400 is connected to the liquid collecting part 300 through the connecting hole 140. In other words, the heat insulation part 400 can be integrally molded with the liquid collecting part 300 through the connecting hole 140. Specifically, in the present embodiment, the base 100 is provided with four connecting holes 140, which is conducive to ensuring the connection stability between the heat insulation part 400 and the liquid collecting part 300.

[0044] Another object of the present invention is to provide a method for manufacturing a heating top cover structure 10 of a cigarette cartridge, which is achieved through the following technical solutions:

[0045] A method for manufacturing a heating top cover structure 10 of a cigarette cartridge comprises the following steps:

[0046] Step 1: Perform an injection molding process using an injection molding machine to obtain the base body 100 .

[0047] Step 2: Place the base 100 into a mold and use a liquid silicone injection molding process to obtain a sealing portion 200 and a liquid collecting portion 300 coated on the base 100, thereby obtaining a heating top cover structure of the cigarette cartridge.

[0048] The manufacturing method of the heating top cover structure of the above-mentioned cigarette cartridge firstly manufactures the base 100 by injection molding process, and then manufactures the sealing part 200 and the liquid collecting part 300 by liquid silicone injection molding process on the base 100. The production process is simple and convenient, which greatly improves the production efficiency and reduces the production cost.

[0049] Specifically, in one embodiment, the sealing part 200 and the liquid collecting part 300 are formed by integral injection molding. Specifically, the sealing part 200 and the liquid collecting part 300 are made of liquid silicone and are integrally formed by LIM process. In this way, the characteristics of silicone are fully utilized to ensure the working stability and reliability of the heating top cover structure of the cigarette cartridge.

[0050] Furthermore, in step 2, the base 100 can be placed in a mold, and a liquid silicone injection molding process can be used to obtain a sealing portion 200, a liquid collecting portion 300, and a heat insulating portion 400 coated on the base 100, thereby obtaining a heating top cover structure of the cigarette cartridge. In other words, the sealing portion 200, the liquid collecting portion 300, and the heat insulating portion 400 are formed by integral injection molding. In this way, the number of parts of the heating top cover structure is reduced, the manufacturing convenience is improved, the production difficulty is reduced, and the compactness of the structure is improved.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0052] The above-mentioned embodiments only express several implementation methods 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 ordinary technicians in this field, 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 top cover structure of a cigarette cartridge, characterized in that: include: A base, a sealing portion and a liquid collecting portion; The sealing part and the liquid collecting part are arranged on the base; The base body has a smoke oil channel and a smoke channel; The sealing part is arranged on the top of the base, and the edge of the sealing part is used for sealingly contacting with the inner wall of the shell cover; the liquid collecting part is arranged around the side wall of the base, and a plurality of annular liquid collecting grooves are opened on the side of the liquid collecting part, and each of the annular liquid collecting grooves is arranged around the base; the sealing part and the liquid collecting part are both made of silicone; The base body is provided with a valve hole on the inner wall of the smoke oil channel, and the valve hole penetrates the base body and the liquid collecting portion; the sealing portion is provided with a valve cover, and the valve cover is closely attached to the base body and the inner wall of the smoke oil channel, and the valve cover can movably cover the valve hole; The heating top cover structure of the cigarette cartridge further includes a heat insulating portion, and the heat insulating portion is arranged on the output end of the base body at the cigarette oil channel; The base is provided with at least one communicating hole, and the heat insulating part is connected with the liquid collecting part through the communicating hole.

2. The heating top cover structure of the cigarette cartridge according to claim 1, characterized in that: The sealing portion and the liquid collecting portion are integrally formed.

3. The heating top cover structure of the cigarette cartridge according to claim 1, characterized in that: The sealing portion and the valve cover are both made of silicone and are integrally formed.

4. The heating top cover structure of the cigarette cartridge according to claim 1, characterized in that: The heat insulating portion, the sealing portion and the liquid collecting portion are all made of silicone and are integrally formed.

5. The heating top cover structure of the cigarette cartridge according to claim 1, characterized in that: The substrate is made of plastic.

6. A method for manufacturing the heating top cover structure of the cigarette cartridge according to claim 1, characterized in that: The steps include: Step 1: performing an injection molding process using an injection molding machine to obtain the substrate; Step 2: Place the substrate into a mold and use a liquid silicone injection molding process to obtain the sealing portion and the liquid collecting portion coated on the substrate, thereby obtaining the heating top cover structure of the cigarette cartridge.

7. The method for manufacturing the heating top cover structure of the cigarette cartridge according to claim 6, characterized in that: The sealing portion and the liquid collecting portion are integrally injection molded.

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