A heating wire assembly spiral nesting fixing structure

Abstract

The utility model relates to a kind of heating wire assembly spiral nesting fixing structure, belong to electronic cigarette heating wire fixing technical field.The heating wire assembly spiral nesting fixing structure, comprising: fixedly installed in the fixed seat of tobacco stem interior, the top of the fixed seat is provided with heating wire, the top of the fixed seat is fixedly installed with two electrode columns;Supporting and fixing mechanism is used to stably support and fix heating wire The supporting and fixing mechanism is arranged on the side of heating wire;Inner strut is located inside heating wire, provides support to coil inner circle, supporting assembly is located outside heating wire, forms annular limit to coil outer circle, so that it keeps from shaking, eccentric in radial direction, improve the adhesion stability of heating wire and cotton core, fixed assembly is arranged between two electrode columns, can provide axial limit and buffer when heating wire is heated and expands, prevent coil from moving, so that heating wire keeps stable state in continuous heating cycle.

Description

Technical Field

[0001] This utility model relates to the field of electronic cigarette heating wire fixing technology, and in particular to a spiral nested fixing structure for a heating wire assembly. Background Technology

[0002] In an e-cigarette atomizer coil, the heating coil assembly typically consists of a cotton wick and a spiral heating wire. The cotton wick absorbs and transports e-liquid, while the heating wire heats and vaporizes the e-liquid within the wick when energized. To ensure stable contact between the heating wire and the cotton wick, a support structure is usually installed inside the atomizer coil to support the wick.

[0003] In practical use, under conditions such as thermal expansion and contraction, drop impact, or repeated changes in suction resistance, the heating wire assembly is prone to problems such as unstable adhesion between the cotton core and the heating wire, axial movement of the heating wire, and slight deformation of the outer diameter of the coil, which affect the uniformity of atomization and the efficiency of oil conduction. Utility Model Content

[0004] Therefore, it is necessary to provide a spiral nested fixing structure for the heating wire assembly to address the problems that easily occur in actual use, such as unstable adhesion between the cotton core and the heating wire, axial movement of the heating wire, and slight deformation of the outer diameter of the coil, which affect the uniformity of atomization and the efficiency of oil conduction.

[0005] A spiral nested fixing structure for a heating wire assembly includes: a fixing seat fixedly installed inside a cigarette rod, wherein a heating wire is disposed on the top of the fixing seat, and two electrode posts are fixedly installed on the top of the fixing seat; a support fixing mechanism for stably supporting and fixing the heating wire, wherein the support fixing mechanism is disposed on one side of the heating wire; wherein the support fixing mechanism includes an inner support column disposed on the inner side of the heating wire, a support component disposed on the outer side of the heating wire, and a fixing component disposed between the two electrode posts.

[0006] The support assembly includes a spiral groove formed on the surface of the inner support column, the heating wire is embedded and snapped into the inside of the spiral groove, and the two ends of the heating wire are respectively fixedly connected to two electrode posts.

[0007] The inner support column is covered with a cotton core, which is located between the heating wire and the inner support column.

[0008] An outer sleeve is fitted around the outer side of the inner support column, the heating wire is located inside the outer sleeve, and multiple expansion springs are fixedly installed inside the outer sleeve.

[0009] Each of the expansion springs is provided with a circular shape, and the expansion springs are distributed at equal intervals.

[0010] A movable rod is slidably mounted on the surface of one side of the electrode post. A spring is sleeved through the outer side of the movable rod. A clamping block is fixedly mounted on one end of the movable rod near the inner support column. The clamping block is cone-shaped. A clamping groove that matches the shape of the clamping block is opened on one side of the inner support column.

[0011] The fixing component includes a telescopic sleeve fixedly installed on the surface of the electrode post on the other side. A fixing tooth block is fixedly installed at the other end of the telescopic sleeve. A fixing groove is opened on the other side of the inner support column. One side of the fixing tooth block extends into the fixing groove and is locked into the fixing groove.

[0012] The telescopic sleeve has multiple deformable bladders fixedly installed inside, and all of the deformable bladders are elliptical in shape.

[0013] Beneficial effects

[0014] 1. The inner support column is located inside the heating wire, providing support for the inner coil of the coil to prevent deformation such as indentation or collapse when it softens due to heat or expands due to oil absorption; the support component is located outside the heating wire, forming a circumferential limit on the outer coil of the coil, keeping it stable and unwavering in the radial direction, improving the bonding stability between the heating wire and the cotton core; the fixing component is set between the two electrode posts, which can provide axial limit and buffer when the heating wire expands due to heat, preventing the coil from shifting and ensuring that the heating wire maintains a stable geometric structure and stress state during continuous heating cycles.

[0015] 2. By setting a telescopic sleeve and a fixed tooth block on the opposite side of the movable rod, the inner support column is simultaneously clamped by the clamping block and the fixed tooth block in the radial direction. The fixed tooth block is continuously embedded in the fixing groove, which can form a reliable rigid positioning for the inner support column. The movable rod and the clamping block provide elastic contact, thus forming a symmetrical limiting structure with one hard and one elastic component. This structure can automatically correct and reset when the inner support column is slightly displaced due to thermal expansion and contraction or micro-vibration, ensuring its stable position during operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support and fixing mechanism of this utility model;

[0019] Figure 3This is a schematic diagram of the electrode post and outer sleeve structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the inner support column and the clamping block structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0022] Figure label:

[0023] 100. Fixing base; 200. Heating wire; 210. Electrode post; 300. Support and fixing mechanism; 310. Inner support column; 320. Support assembly; 321. Spiral groove; 322. Cotton core; 323. Outer sleeve; 324. Expansion spring; 325. Movable rod; 326. Spring; 327. Clamping block; 330. Fixing assembly; 331. Telescopic sleeve; 332. Fixing tooth block; 333. Fixing groove; 334. Deformable bladder. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The following is combined with Figures 1-5 This invention describes the spiral nested fixing structure of the heating wire assembly.

[0026] In one embodiment, a spiral nested fixing structure for a heating wire assembly includes: a fixing seat 100 fixedly installed inside a cigarette holder, a heating wire 200 disposed on the top of the fixing seat 100, and two electrode posts 210 fixedly installed on the top of the fixing seat 100; a support fixing mechanism 300, which is disposed on one side of the heating wire 200 for stably supporting and fixing the heating wire 200; wherein the support fixing mechanism 300 includes an inner support column 310 disposed inside the heating wire 200, a support component 320 disposed outside the heating wire 200, and a fixing component 330 disposed between the two electrode posts 210.

[0027] In this embodiment, the inner support column 310 is located inside the heating wire 200 and can support the inner coil of the heating wire 200, so that the coil does not deform such as inward concavity or collapse when it softens due to heat or expands due to continuous oil absorption. The support component 320 is located outside the heating wire 200 and forms circumferential support and clamping for the outer coil, so that the heating wire 200 does not shake or become eccentric in the radial direction, and improves the uniformity of the fit between the coil and the cotton core 322. The fixing component 330 set between the two electrode columns 210 can produce a limiting and buffering effect when the heating wire 200 expands due to heat, so that the coil does not move or shift in the axial direction, thereby ensuring that the heating wire 200 maintains a stable geometric shape and stress state during the continuous heating cycle.

[0028] It should be noted that the existing heating wire assembly fixing structure usually includes basic components such as a fixing base 100, electrode post 210, cotton wick 322, and a spiral heating wire 200 wound around the outside of the cotton wick 322. The support component 320 only provides light support for the outer ring of the heating wire 200 and does not participate in the e-liquid delivery or actual heating of the heating area. It will not block the path of the cotton wick 322 for oil absorption and e-liquid vaporization. The fixing component 330 is set in the space between the electrode posts 210 and is used to limit the axial movement of the coil. Its range of motion is separated from the heating area. It does not participate in the heating process and will not change the heating shape of the heating wire 200.

[0029] The support assembly 320 includes a spiral groove 321 formed on the surface of the inner pillar 310, and a heating wire 200 is embedded and snapped into the inside of the spiral groove 321. The two ends of the heating wire 200 are respectively fixedly connected to two electrode posts 210.

[0030] In this embodiment, by providing a spiral groove 321 on the outer surface of the inner support 310, the heating wire 200 can be automatically embedded and positioned along the spiral path during assembly, avoiding problems such as coil offset, looseness, or uneven coil spacing during installation. The spiral groove 321 forms a circumferential wrap around the outer diameter of the heating wire 200 coil, making it less likely for the coil to bulge inward, outward, or laterally jump when it expands due to heat or oil absorption. This ensures that the heating wire 200 always adheres to the cotton core 322 during operation to maintain a stable thermal field distribution.

[0031] The inner support column 310 is fitted with a cotton core 322, which is located between the heating wire 200 and the inner support column 310.

[0032] In this embodiment, by sleeved with a cotton core 322 on the outside of the inner support column 310, the cotton core 322 forms a flexible fit and continuous oil supply function to the heating wire 200 embedded in the spiral groove 321. On the one hand, the cotton core 322 can fully absorb the surrounding e-liquid and evenly deliver it to the heating wire 200, so that the heating wire 200 is always in a good oil-containing state during the heating process, reducing the problems of dry burning, scorching and local insufficient oil supply. On the other hand, the cotton core 322 is between the heating wire 200 and the inner support column 310, which can provide a buffer space when the heating wire 200 expands due to heat, so as to avoid the coil being constrained by thermal expansion and deformed or metal fatigued.

[0033] An outer sleeve 323 is fitted on the outside of the inner support column 310, and the heating wire 200 is located inside the outer sleeve 323. Multiple expansion springs 324 are fixedly installed inside the outer sleeve 323.

[0034] In this embodiment, multiple expansion springs 324 allow the outer sleeve 323 to be fitted onto the outside of the heating wire 200. The expansion springs 324 can form a radial limiting and flexible pressing effect on the outer ring of the heating wire 200 or the cotton core 322. During assembly, the expansion springs 324 are slightly stretched by the heating wire 200 and the cotton core 322. Under the action of the rebound force, a uniform covering pressure is generated on the outer ring of the cotton core 322, so that the cotton core 322 is always tightly attached to the surface of the heating wire 200, thereby improving the oil conduction efficiency of the cotton core 322 and the oil uniformity on the outside of the coil. At the same time, the elastic structure of the expansion springs 324 can absorb part of the deformation when the heating wire 200 is repeatedly thermally expanded and contracted or the device is vibrated, preventing the coil from loosening, becoming eccentric or shaking in the radial direction, and keeping the heating wire 200 in a stable spatial position under high-frequency thermal cycling.

[0035] Multiple expansion springs 324 are all arranged in a circular shape, and the multiple expansion springs 324 are equidistantly distributed.

[0036] In this embodiment, the annular spring can form a continuous circumferential clamping force when it rebounds, so that the cotton core 322 is stably attached to the entire circumference, thereby improving the degree of coverage of the heating wire 200 by the cotton core 322 and the uniformity of oil conduction. The equidistantly distributed expansion springs 324 can provide balanced elastic buffering when the heating wire 200 expands when heated, contracts when cooled, and when the equipment is subjected to external force vibration, so that the coil always maintains a stable central position in the radial direction.

[0037] A movable rod 325 is slidably mounted on the surface of one electrode post 210. A spring 326 is sleeved through the outside of the movable rod 325. A clamping block 327 is fixedly mounted on one end of the movable rod 325 near the inner support column 310. The clamping block 327 is set in a conical shape. A clamping groove that matches the shape of the clamping block 327 is opened on one side of the inner support column 310.

[0038] In this embodiment, the spring 326 provides a continuous elastic thrust towards the inner support column 310, causing the clamping block 327 to always tend to extend into the clamping groove in its natural state, thereby providing a stable lateral limiting effect on the inner support column 310. The matching fit between the conical clamping block 327 and the clamping groove can form a self-guiding snap-fit ​​relationship, allowing the clamping block 327 to automatically return to its original position and accurately embed into the clamping groove when slight displacement occurs during assembly or temperature changes. This effectively prevents the inner support column 310 from shaking, becoming eccentric, or rotating due to vibration, thermal expansion and contraction, or external impact. The compressible buffer stroke provided by the spring 326 can absorb some stress when the heating wire 200 expands, avoiding uneven force or structural damage to the inner support column 310 caused by rigid limiting, and improving the stability and reliability of the overall support mechanism during long-term heat absorption, heating, and cooling cycles.

[0039] The fixing component 330 includes a telescopic sleeve 331 fixedly installed on the surface of the electrode post 210 on the other side. A fixing tooth block 332 is fixedly installed on the other end of the telescopic sleeve 331. A fixing groove 333 is opened on the other side of the inner support column 310. One side of the fixing tooth block 332 extends into the fixing groove 333 and is locked in place with the fixing groove 333.

[0040] In this embodiment, by providing a telescopic sleeve 331 and a fixed tooth block 332 on the side opposite to the movable rod 325, the inner support column 310 is simultaneously clamped by the clamping block 327 and the fixed tooth block 332 in the radial direction. The fixed tooth block 332 is fixedly installed on the telescopic sleeve 331, and its protruding end is continuously embedded in the fixed groove 333, which can form a reliable rigid engagement of the inner support column 310, so that the inner support column 310 has a stable limiting effect in both the axial and horizontal directions. After the inner support column 310 is assembled, it forms a symmetrical limiting structure of one hard and one elastic. That is, the fixed tooth block 332 provides a stable reference positioning, while the movable rod 325 and the clamping block 327 provide a finely adjustable elastic fit. The two work together to maintain the automatic reset function when the inner support column 310 has a slight displacement tendency due to thermal expansion and contraction or micro-vibration.

[0041] Multiple deformable bladders 334 are fixedly installed inside the telescopic sleeve 331, and all of the multiple deformable bladders 334 are set in an elliptical shape.

[0042] In this embodiment, the deformable bladder 334 is filled with a material that can expand in volume with temperature changes, such as thermally expandable rubber, microspheres, and expandable graphite. When the heating wire 200 is working, as the temperature of the atomization zone rises, the expansion medium inside the deformable bladder 334 is rapidly heated and pressurized, causing the deformable bladder 334 to bulge outward from an elliptical shape. This pushes the fixed tooth block 332 to make a slight displacement in the direction of the inward support 310, so that the fixed tooth block 332 forms a tighter limiting clamping effect during the heating stage of the heating wire 200. When the heating wire 200 stops heating and the temperature drops, the deformable bladder 334 automatically returns to its original shape due to the contraction of the internal medium, causing the fixed tooth block 332 to return to its initial position, thus realizing a reversible thermal response limiting function.

[0043] Working principle: The two electrode posts 210 first energize both ends of the heating wire 200, causing the spiral coil to heat up and vaporize the e-liquid in the cotton wick 322. During operation, the heating wire 200 is provided with stable radial positioning by a double-layer support system consisting of the inner support column 310 and the outer sleeve 323. The coil spacing is limited by the spiral groove 321 on the inner side of the coil, and the outer side is continuously subjected to circumferential clamping force by multiple expansion springs 324, so that the heating wire 200 maintains a stable geometric structure under conditions of thermal expansion, oil absorption expansion, or vibration. As the temperature rises, the cotton core 322 continuously supplies oil to the heating wire 200, ensuring a uniform and smooth heating process. During the heating phase, the fixing component 330 begins to function as a dynamic limiter. The movable rod 325 on one side, under the action of the spring 326, presses the clamping block 327 into the clamping groove, achieving flexible lateral limiting. The fixing tooth block 332 on the other side forms a rigid reference positioning under the support of the telescopic sleeve 331. At the same time, the deformation bladder 334 inside the telescopic sleeve 331 expands due to the temperature rise, pushing the fixing tooth block 332 inward. This automatically strengthens the clamping force on the inner support column 310 during the high-temperature stage, preventing the support column from shaking or shifting due to thermal expansion and contraction. After the heating wire 200 stops working and the temperature drops, the deformation bladder 334 automatically retracts, and the fixing tooth block 332 and the movable rod 325 return to their initial limiting positions. The support structure returns to its stable cold state. Throughout the process, the heating wire 200 maintains a stable central position and a uniform fit, thus ensuring the consistency of atomization efficiency and atomization effect.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A spiral nested fixing structure for a heating wire assembly, characterized in that, include: A fixed base (100) is fixedly installed inside the cigarette rod. A heating wire (200) is provided on the top of the fixed base (100). Two electrode posts (210) are fixedly installed on the top of the fixed base (100). A support and fixing mechanism (300) is provided for stably supporting and fixing the heating wire (200). The support and fixing mechanism (300) is disposed on one side of the heating wire (200). The supporting and fixing mechanism (300) includes an inner support column (310) disposed inside the heating wire (200), a supporting component (320) disposed outside the heating wire (200), and a fixing component (330) disposed between the two electrode columns (210).

2. The spiral nested fixing structure of the heating wire assembly according to claim 1, characterized in that, The support assembly (320) includes a spiral groove (321) formed on the surface of the inner support column (310), the heating wire (200) is embedded and snapped into the inside of the spiral groove (321), and the two ends of the heating wire (200) are respectively fixedly connected to two electrode posts (210).

3. The spiral nested fixing structure of the heating wire assembly according to claim 1, characterized in that, The inner support (310) is covered with a cotton core (322), which is located between the heating wire (200) and the inner support (310).

4. The spiral nested fixing structure of the heating wire assembly according to claim 1, characterized in that, The outer sleeve (323) is fitted on the outside of the inner support (310), the heating wire (200) is located inside the outer sleeve (323), and a plurality of expansion springs (324) are fixedly installed inside the outer sleeve (323).

5. The spiral nested fixing structure of the heating wire assembly according to claim 4, characterized in that, Each of the expansion springs (324) is provided with a circular shape, and the expansion springs (324) are distributed at equal intervals.

6. The spiral nested fixing structure of the heating wire assembly according to claim 1, characterized in that, A movable rod (325) is slidably mounted on the surface of one side of the electrode post (210). A spring (326) is sleeved through the outer side of the movable rod (325). A clamping block (327) is fixedly mounted on one end of the movable rod (325) near the inner support column (310). The clamping block (327) is set in a conical shape. A clamping groove that matches the shape of the clamping block (327) is opened on one side of the inner support column (310).

7. The spiral nested fixing structure of the heating wire assembly according to claim 1, characterized in that, The fixing component (330) includes a telescopic sleeve (331) fixedly installed on the surface of the electrode post (210) on the other side. A fixing tooth block (332) is fixedly installed at the other end of the telescopic sleeve (331). A fixing groove (333) is opened on the other side of the inner support column (310). One side of the fixing tooth block (332) extends into the fixing groove (333) and is locked in place with the fixing groove (333).

8. The spiral nested fixing structure of the heating wire assembly according to claim 7, characterized in that, The telescopic sleeve (331) has multiple deformable bladders (334) fixedly installed inside, and all of the multiple deformable bladders (334) are set in an elliptical shape.

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