Sealing power device for electronic cigarette tar bin
By combining the column support and the top rod, and using electromagnetic force to drive the top rod to control the oil inlet, the problem of large size and many parts in traditional electronic cigarette power devices is solved, achieving the effects of preventing oil leakage and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 深圳市禾晗科技有限公司
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional electronic cigarettes have large power units and many parts, resulting in high production costs, complex structures, and limited widespread application.
It adopts a combination structure of column support, push rod, sealing plug, coil and elastic element. It uses electromagnetic force to drive the push rod to achieve precise control of the oil inlet hole. The column structure combined with plastic shell fixes the coil, reducing the number of parts and optimizing the space occupation.
It effectively prevents oil leakage, reduces the number of parts, lowers production costs, improves production efficiency, and achieves a compact internal structure layout for electronic cigarettes.
Smart Images
Figure CN224112147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, and in particular to a sealing power device for an electronic cigarette oil tank. Background Technology
[0002] In the e-cigarette industry, traditional transparent tank-type e-cigarettes typically employ an open design for their filling ports. During actual use, frequent changes in internal and external air pressure due to environmental factors lead to frequent leaks and seepage, severely impacting the user experience. Existing leak-proof technologies, employing a combination of a power unit and a sealed piston, have effectively solved the leak problem. However, market testing has revealed several significant shortcomings: Firstly, the power unit is relatively large, occupying too much space within the limited internal structure of the e-cigarette, greatly restricting its widespread application across different models. Secondly, the technology involves a large number of components and a complex assembly process, increasing labor costs and overall production costs, thus hindering the product's market competitiveness. Utility Model Content
[0003] This utility model provides a sealing power device for electronic cigarette oil tank, which aims to solve the problems of large size of the power device and large number of parts in the existing electronic cigarette oil leakage prevention technology.
[0004] This utility model provides a sealing power device for an electronic e-liquid tank, including a column support, a top rod, a sealing plug, a coil, a shield, and an elastic element. The column support has a hollow column, the middle part of the top rod is movably connected to the inner cavity of the column, and the top of the top rod is connected to the sealing plug. The sealing plug is used to seal the oil inlet between the oil tank and the atomizing chamber. The coil is connected to the outer wall of the column, and the shield is connected to the column support and covers the outside of the coil. The elastic element is installed on the top rod and applies elastic force to the top rod. The top rod is magnetic, and when the coil is energized, it generates an axial electromagnetic force on the top rod.
[0005] As a further improvement of this utility model, the coil is interference-fitted with the outer wall of the column.
[0006] As a further improvement of this utility model, the upper half of the top rod is a thin rod portion, and the lower half of the top rod is a thick rod portion, with the thin rod portion and the thick rod portion connected by a transition platform.
[0007] As a further improvement of this utility model, the inner cavity of the column is provided with a thin rod chamber that moves with the thin rod part and a thick rod chamber that moves with the thick rod part. The thin rod chamber and the thick rod chamber are connected by a transition surface. When the top rod rises to the highest position, the transition surface contacts the transition platform.
[0008] As a further improvement of this utility model, the thick rod portion is magnetic, and the polarity direction of the thick rod portion is opposite to the direction of the electromagnetic force of the coil.
[0009] As a further improvement of this utility model, the column support is also provided with a cover mounting block, the cover mounting block is located on the outer ring of the column, a coil mounting position is reserved between the cover mounting block and the column, and the shielding cover is connected to the cover mounting block.
[0010] As a further improvement of this utility model, the bottom of the top rod is provided with a protruding retaining ring, and one end of the elastic element is fixed on the retaining ring.
[0011] As a further improvement of this utility model, the top of the push rod is provided with a buckle, and the sealing plug is provided with a buckle hole. The push rod is inserted into the buckle hole of the sealing plug through the buckle.
[0012] As a further improvement of this utility model, the electronic e-cigarette oil tank sealing power device also includes an oil passage, which connects the oil tank and the atomizing chamber. The oil inlet is set on the oil passage, the inner cavity of the column is connected to and communicates with the oil passage, and the top of the top rod passes through the inner cavity of the column and the oil passage and is connected to the sealing plug.
[0013] As a further improvement of this utility model, the sealing plug is located inside the oil tank. When oil is introduced, the push rod drives the sealing plug to move inside the oil tank to offset the oil inlet hole. When sealing, the push rod drives the sealing plug to move to the oil inlet hole and block it. Alternatively, the sealing plug is located inside the oil inlet channel. When oil is introduced, the push rod drives the sealing plug to move inside the oil inlet channel to offset the oil inlet hole. When sealing, the push rod drives the sealing plug to move to the oil inlet hole and block it.
[0014] The beneficial effects of this utility model are:
[0015] (1) Structural component integration and optimization: The coil is fixed by the column structure on the column bracket, replacing the original independent plastic coil bracket. This reduces the use of one component and significantly reduces the space occupied by the power unit inside the e-cigarette, making it possible to have a compact layout of the internal structure of the e-cigarette;
[0016] (2) Component consolidation and simplification: This design combines the original separate installation structure of push rod and piston rod into a single push rod structure. This optimization not only reduces the number of components but also eliminates an assembly process, thereby reducing production costs and improving production efficiency. Attached Figure Description
[0017] Figure 1 This is an overall structural diagram of the electronic cigarette containing the oil tank sealing power device according to this utility model;
[0018] Figure 2 This is an internal structural diagram of the electronic cigarette part containing the oil tank sealing power device of this utility model;
[0019] Figure 3 This is a structural cross-sectional view of the sealing power device for the electronic e-liquid tank of this utility model in its sealed state;
[0020] Figure 4 This is a cross-sectional view of the electronic e-cigarette oil tank sealing power device in the oil inlet state.
[0021] Figure 5 This is a diagram showing the internal structure of the plastic outer shell in this utility model;
[0022] Figure 6 This is an exploded view of the push rod and sealing plug in this utility model. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] like Figures 1 to 5 As shown, this utility model proposes an innovative solution that deeply integrates a magnetic power device with a shell structure. Through ingenious structural design, the performance and stability of the device are effectively improved. Specifically, an electronic e-liquid tank sealing power device of this utility model includes a column support 1, a top rod 2, a sealing plug 3, a coil 4, a shielding cover 5, and an elastic element 6. The column support 1 has a hollow column 11. The middle part of the top rod 2 is movably connected to the inner cavity of the column 11. The top of the top rod 2 is connected to the sealing plug 3, which is used to seal the oil inlet hole 83 between the oil tank 7 and the atomizing chamber 81. The coil 4 is connected to the outer wall of the column 11. The shielding cover 5 is connected to the column support 1 and covers the outside of the coil 4. The elastic element 6 is installed on the top rod 2 and applies elastic force to the top rod 2. The top rod 2 is magnetic, and when the coil 4 is energized, it generates an axial electromagnetic force on the top rod 2.
[0025] The internal structure of the electronic cigarette also includes a circuit board 101 and a battery 102. The battery 102 powers the entire electronic cigarette and is electrically connected to the circuit board 101. The two ends of the coil 4 are connected to the circuit board 101, and the circuit board 101 controls the power supply. This device uses electromagnetic force to cooperate with the sealing piston to achieve precise and effective control over the opening and closing of the oil inlet 83 of the e-cigarette's e-liquid tank 7. Precise control of the magnitude and direction of the electromagnetic force of the magnetic power device enables it to stably drive the piston movement and reliably switch between the filling and sealing states. Simultaneously, the sealing structure of the sealing plug 3 and the oil inlet 83 is optimized to effectively prevent oil leakage under various operating conditions. The collaborative working mode of the magnetic power device and the piston mechanism, and the method of controlling the opening and closing of the oil inlet 83 based on the principle of electromagnetic induction, are described.
[0026] The coil 4 is interference-fitted with the outer wall of the column 11. The coil 4 is preferably an enameled coil. A hollow structure resembling a column 11 is constructed within the housing design. This structure fully considers the principles of mechanics and electromagnetism, tightly fitting the enameled coil 4 onto the column 11. Utilizing the shape and material characteristics of the column 11, a stable fixation of the enameled coil 4 is achieved, ensuring that its electromagnetic performance is not affected by vibration, displacement, or other factors during device operation. The column 11 is made of thin-walled, elastic plastic, while the metal coil 4 is malleable. Utilizing these characteristics, the assembly of the coil 4 and the column 11 can be designed as an interference fit, meaning the outer diameter of the column 11 is appropriately larger than the aperture of the coil 4. During assembly, a tooling fixture is used to press the coil 4 onto the column 11. Due to the interference fit, the coil 4 and the side wall of the column 11 generate a clamping force, preventing it from falling off.
[0027] The upper part of the push rod 2 is a thin rod section 21, and the lower part is a thick rod section 22. The thin rod section 21 and the thick rod section 22 are connected by a transition platform 23. The thick rod section 22 is magnetic, and its polarity is opposite to that of the electromagnetic force of the coil 4. In the existing structure, two components, a magnetic push rod and a piston rod, are required to cooperate to realize the function of the push rod 2 in this utility model. However, since the magnetic push rod and the piston rod are made of the same material, by optimizing the material selection and processing technology, the magnetic push rod and the piston rod are integrated into the structure of the push rod 2. The thin rod section 21 is used to connect with the sealing plug 3 and plays the role of the piston rod in the existing structure. The thick rod section 22 is magnetic and realizes electromagnetic drive, playing the role of the existing magnetic push rod. In the integrated design of the push rod 2, it is ensured that the combined component meets the dual functional requirements of the piston rod and the push pin in terms of mechanical performance, and the strength, precision and reliability of the component are guaranteed. The integrated structural design of the piston rod and the magnetic power device pin, along with the corresponding material selection and processing technology, not only simplifies the assembly process but also improves the stability and durability of the device, demonstrating significant technical advantages.
[0028] The inner cavity of the column 11 is provided with a thin rod chamber 12 that movably engages with the thin rod portion 21, and a thick rod chamber 13 that movably engages with the thick rod portion 22. The thin rod chamber 12 and the thick rod chamber 13 are connected by a transition surface 14. When the push rod 2 rises to its highest position, the transition surface 14 contacts the transition platform 23. The thin rod chamber 12 and the thick rod chamber 13 can ensure the stability of the up-and-down movement of the thin rod portion 21 and the thick rod portion 22 of the push rod 2 inside the column 11. The engagement of the transition surface 14 and the transition platform 23 limits the movement distance of the push rod 2.
[0029] The push rod 2 of the power unit passes through the middle of the column 11. Thanks to its precise dimensions and high-precision machining, the column 11 provides stable and accurate guidance for the up-and-down movement of the push rod 2. During operation, whether at high speed or under complex external forces, the column 11 ensures that the push rod 2 moves up and down along the predetermined trajectory, effectively preventing swaying and deviation, ensuring the accuracy and stability of the movement, and laying a solid foundation for the reliable operation of the entire magnetic power unit.
[0030] The column support 1 is also equipped with a cover mounting block 15, which is located on the outer ring of the column 11. A coil mounting position 16 is reserved between the cover mounting block 15 and the column 11, and the shielding cover 5 is connected to the cover mounting block 15. The reserved coil mounting position 16 provides space for the coil 4 to be connected to the column 11. After the shielding cover 5 is installed on the column support 1, there is still a gap between it and the coil 4, which can avoid direct contact with the coil 4 and also play a shielding role. The shielding cover 5 is a cylindrical thin-walled metal structure. The cylindrical structure can concentrate the electromagnetic force to the center of the cylinder, thereby more effectively transmitting the force to the top rod 2 located at the center of the cylinder.
[0031] To further optimize the electromagnetic effect, a metal shield 5 is installed on the outside of the enameled coil 4. The shield 5 is made of a special metal material and is finely processed and designed to efficiently concentrate electromagnetic force, acting like a precise electromagnetic focuser to concentrate the originally dispersed electromagnetic force. At the same time, it effectively prevents the electromagnetic force from spreading outward, avoiding electromagnetic interference to surrounding equipment or the environment, and greatly improving the electromagnetic utilization efficiency of the magnetic power device.
[0032] The bottom of the push rod 2 has a protruding retaining ring 24, and one end of the elastic element 6 is fixed to the retaining ring 24. The retaining ring 24 is used to hook the elastic element 6 and provide a force-acting surface for applying pressure to the elastic element 6. The elastic element 6 can preferably be a spring. A sealing plug 3 is installed at the upper end of the push rod 2, and the lower end is connected to the spring. The continuous elastic force applied by the spring acts as a constant tension source, pulling the push rod 2 downward. The sealing plug 3 always maintains a good sealing state, effectively preventing oil leakage. This structural design not only ensures the internal sealing of the device and maintains the normal operating environment of the device, but also extends the service life of the device and reduces maintenance costs and equipment failure risks caused by oil leakage.
[0033] like Figure 6 As shown, the top of the push rod 2 is provided with an inverted buckle 25, and the sealing plug 3 is provided with an inverted buckle hole 31. The push rod 2 is inserted into the inverted buckle hole 31 of the sealing plug 3 through the inverted buckle 25. When installing the sealing plug 3, it is only necessary to use the elasticity of the sealing plug 3 material itself to press it into the inverted buckle 25 through the inverted buckle hole 31, which is convenient for installation.
[0034] The electronic e-cigarette oil tank sealing power device also includes an oil passage 82, which connects the oil tank 7 and the atomizing chamber 81. An oil inlet 83 is located on the oil passage 82. The inner cavity of the column 11 is connected to and connected to the oil passage 82. The top of the push rod 2 passes through the inner cavity of the column 11 and the oil passage 82 before connecting to the sealing plug 3. Figure 2 As shown, the internal structure of the electronic cigarette also includes an oil-passing shell 8 and a plastic shell 9. The oil tank 7, oil-passing shell 8, and plastic shell 9 are connected in sequence. The oil-passing channel 82 and the atomizing chamber 81 are located inside the oil-passing shell 8. The oil-passing hole is located on the oil-passing shell 8 and is located at the docking point with the oil tank 7. The atomizing core is connected to the atomizing chamber 81 of the oil-passing shell 8. The column support 1 and the plastic shell 9 are integrally molded, and the mold of the plastic shell 9 is CNC machined. The mold has high precision and can ensure the dimensional accuracy, surface smoothness, and verticality of the column 11, which can meet the requirements of the precise up and down movement of the top rod 2.
[0035] By cleverly utilizing the inherent structure of the plastic shell 9, the size, position, and shape of the upright 11 are precisely designed to meet the mechanical strength requirements for fixing the enameled copper coil 4, while also achieving a compact layout with other internal components of the electronic cigarette without affecting overall performance. This structure simplifies traditional fixing methods, reduces the number of parts, and lowers production costs.
[0036] The sealing plug 3 is located inside the oil tank 7. When oil is introduced, the push rod 2 moves the sealing plug 3 within the oil tank 7 to offset the oil inlet hole 83. When sealing, the push rod 2 moves the sealing plug 3 to the oil inlet hole 83 and blocks it. Alternatively, the sealing plug 3 is located within the oil inlet channel. When oil is introduced, the push rod 2 moves the sealing plug 3 within the oil inlet channel to offset the oil inlet hole 83. When sealing, the push rod 2 moves the sealing plug 3 to the oil inlet hole 83 and blocks it. Depending on actual needs, the sealing plug 3 can be installed either inside the oil tank 7 or inside the oil passage 82. Figure 3 and 4As shown, the sealing plug 3 is located inside the oil tank 7. At this time, the bottom of the push rod 2 extends to the outside of the shield 5. In its natural state, the elastic element 6 will press against the outside of the bottom end face of the shield 5 and act on the retaining ring 24 of the push rod 2, applying a downward elastic force to the push rod 2. The sealing plug 3 will also move downward under the action of the elastic force to block the oil passage. When the coil 4 is energized, it applies an upward electromagnetic force to the push rod 2. After overcoming the elastic force, the push rod 2 pushes the sealing plug 3 upward, and the sealing plug 3 moves into the oil tank 7 to open the oil passage. Of course, adjustments can be made to the above structure, placing the sealing plug 3 inside the oil passage 82. In this case, the bottom of the push rod 2 is located inside the shield 5, the bottom of the elastic element 6 abuts against the inner side of the bottom end face of the shield 5, and the top of the elastic element 6 abuts against the retaining ring 24 of the push rod 2. In its natural state, the elastic element 6 will press against the inner side of the bottom end face of the shield 5 and act on the retaining ring 24 of the push rod 2, applying an upward elastic force to the push rod 2. The sealing plug 3 will also move upward under the action of the elastic force to block the oil passage. When the coil 4 is energized, it applies a downward electromagnetic force to the push rod 2. After overcoming the elastic force, the push rod 2 pushes the sealing plug 3 downward, and the sealing plug 3 moves into the oil passage 82 to open the oil passage. The installation position of the elastic element 6 can be adjusted according to the actual structural needs, as long as it can satisfy the requirement of applying an elastic force in the corresponding direction to the push rod 2.
[0037] The working process of the sealing power device for the electronic e-liquid tank is as follows:
[0038] by Figure 3 and Figure 4 For example, the wires at both ends of the enameled coil 4 are soldered to the motherboard. After power is applied, under the action of electromagnetic induction, the enameled coil 4 will quickly generate a strong upward suction force. This suction force pushes the push rod 2 upward, thereby opening the sealing plug 3, allowing for smooth oil filling. After oil filling is completed, the power is cut off, the electromagnetic force disappears, and the push rod 2 moves downward and resets under the strong elastic force of the elastic element 6. The sealing plug 3 also returns to its initial sealed state, ensuring the airtightness of the electronic cigarette during use.
[0039] The advantages of this electronic e-liquid tank sealing power unit are:
[0040] (1) Structural component integration and optimization: The enameled copper coil 4 in the main structure of the power unit usually requires a plastic bracket for fixation. This design cleverly utilizes the column-shaped structure of the plastic shell 9 itself to replace the original independent plastic bracket. This innovative measure not only reduces the use of one component, but also significantly reduces the space occupied by the power unit inside the electronic cigarette, making it possible to have a compact layout of the internal structure of the electronic cigarette;
[0041] (2) Component Consolidation and Streamlining: Considering that the magnetic push rod of the power unit and the sealing piston rod are made of the same material, SUS304, and have the same processing technology, both being machined by locomotive, this design combines the two into a single push rod 2 component. This optimization not only reduces the number of components but also eliminates an assembly process, thereby reducing production costs and improving production efficiency.
[0042] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. An electronic e-liquid tank sealing power device, characterized in that, The utility model provides a kind of oil atomizer, including stand support, top rod, sealing plug, coil, shield, elastic element, the stand support is equipped with hollow column, the middle part of top rod is movably connected with the inner cavity of column, the top of top rod is connected sealing plug, the sealing plug is used to seal the oil inlet hole between oil depot and atomizing chamber, the coil is connected on the outer wall of column, the shield is connected on stand support and covers outside coil, the elastic element is installed on top rod and exerts elastic force on top rod, the top rod is magnetic, the coil generates axial electromagnetic force to top rod when energized.
2. An electronic e-liquid tank sealing power device according to claim 1, characterized in that, The coil is in interference fit with the outer wall of the column.
3. The electronic e-liquid tank sealing power device of claim 1, wherein, The upper half of the top rod is a thin rod portion, and the lower half of the top rod is a thick rod portion.
4. An electronic e-liquid tank sealing power device according to claim 3, characterized in that, The inner cavity of the column is provided with a thin rod chamber movably fitted with the thin rod portion, and a thick rod chamber movably fitted with the thick rod portion.
5. An electronic e-liquid tank sealing power device according to claim 3, characterized in that, The thin rod chamber and the thick rod chamber are connected by a transition surface.
6. The electronic e-liquid tank sealing power device of claim 1, wherein, The thick rod portion is magnetic, and the polarity direction of the thick rod portion is opposite to the direction of the electromagnetic force of the coil.
7. The electronic e-liquid cartridge sealing power device of claim 1, wherein, The stand support is also provided with a cover mounting block.
8. The electronic e-liquid cartridge sealing power device of claim 1, wherein, The bottom of the top rod is provided with a protruding snap ring.
9. The electronic e-liquid cartridge sealing power device of claim 1, wherein, The top of the top rod is provided with an undercut.
10. An electronic e-liquid cartomiser sealing power device according to claim 9, characterised in that, The sealing plug is located inside the oil depot. The sealing plug is located inside the oil inlet passage. The sealing plug is located inside the oil inlet passage.