Electronic cigarette capable of supplying oil through motor
The motor assembly driven by a micro stepper motor and a food-grade silicone tube solves the problems of oil leakage and inaccurate flow in the e-cigarette oil supply structure, achieves precise control and miniaturized design, and improves taste consistency and layout adaptability.
Patent Information
- Application Number
- CN202511112071.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2025-09-23
AI Technical Summary
The existing e-cigarette oil supply structure has the risk of oil leakage, inaccurate oil supply flow, occupies a large space, and affects the taste consistency and design layout.
The motor assembly is driven by a micro stepper motor, which controls the oil supply through extrusion and peristalsis. The oil supply pipe is divided into three sections by rotors and rollers to achieve precise control of the oil supply. Food-grade silicone tubes are used to enhance sealing.
It achieves precise control of the e-liquid supply, reduces the risk of oil leakage, improves taste consistency, and takes up little space, making it suitable for the design layout of e-cigarettes.
Smart Images

Figure CN120678261A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to an electronic cigarette that supplies oil through a motor. Background Art
[0002] For liquid-based e-cigarettes, the liquid is typically stored in a reservoir and supplied to the reservoir when needed. To achieve precise control over the liquid supply, some designs currently use a pump. Existing designs typically employ a miniature DC diaphragm pump placed in the oil supply pipe, controlling the pump to control the oil supply. However, this pump structure cannot isolate the oil reservoir from the outside world. Leakage can occur under certain conditions, such as negative pressure, vibration, or varying temperatures. Controlling the oil flow depends on voltage, current, time, and internal reservoir pressure. E-cigarette voltage typically ranges from 3.4V to 4.2V. This voltage inconsistency leads to varying motor speeds, resulting in inaccurate liquid delivery. This also results in significant variations in the amount of liquid stored in the atomizer, leading to varying flavors. Furthermore, the typical size of a pump is 6.7*4cm, which takes up a lot of space and hinders the design and layout of the e-cigarette. Summary of the Invention
[0003] The technical problem solved by the present invention is to provide an electronic cigarette that supplies oil through a motor; the oil supply amount can be accurately and reliably controlled, and the volume occupied is relatively small.
[0004] The technical solution of the present invention to solve the above technical problems is:
[0005] The electronic cigarette includes an oil tank, oil storage cotton and an oil supply pipe; the oil supply pipe connects the oil tank and the oil storage cotton; and also includes a motor assembly; the motor assembly is arranged on the outside of the oil supply pipe and can flatten the oil supply pipe by squeezing to cut off the oil path of the oil supply pipe.
[0006] The motor assembly includes a stepper motor, a reducer and a rotor; the output of the stepper motor passes through the reducer and is connected to the rotor.
[0007] It also includes a rotating cavity for the oil supply pipe; a section of the oil supply pipe is bent in the rotating cavity; the rotor is placed in the center of the rotating cavity; the rotor can cooperate with the inner wall of the rotating cavity to flatten the oil supply pipe and cut off the oil path inside the oil supply pipe.
[0008] The front end of the rotor is connected to a radial roller; the two ends of the roller can cooperate with the inner wall of the rotating chamber to divide the oil supply pipe into three sections, namely the oil bin and roller section, the roller section, and the roller and oil storage cotton section; when the roller rotates driven by the stepper motor, the tobacco oil in the roller section of the oil supply pipe can be pressed into the roller and oil storage cotton section; as the roller continues to rotate, the tobacco oil in the oil bin and roller section becomes the tobacco oil in the next roller section.
[0009] When the rotor of the present invention rotates, the oil in the oil tank side of the oil supply pipe is input to the oil storage cotton side of the oil supply pipe by squeezing and peristalsis. The roller on the rotor squeezes the silicone oil supply pipe to cut off the oil circuit of the oil supply pipe and seal the oil circuit between the oil storage cotton and the oil tank. Even under negative pressure, vibration, different temperatures, etc., the oil in the oil tank will not leak out. The present invention adopts a micro-stepping motor, which can accurately control the speed, forward and reverse rotation and number of revolutions of the rotor to control the oil feed speed and flow rate, and realize stable control of the oil storage capacity of the atomizer. The consistency of taste is small. The motor assembly of the present invention is small in size and occupies little space, which is easier to design and layout of electronic cigarettes. The reducer is used to increase the torque of the stepping motor to drive the rotation of the rotor. The oil supply pipe of the present invention uses food-grade silicone tube, which can reach 100,000 to 200,000 times of squeezing, which is far greater than the lifespan required by electronic cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The present invention will be further described below in conjunction with the accompanying drawings:
[0011] Figure 1 is a schematic cross-sectional view of the electronic cigarette of the present invention;
[0012] Figure 2 This is a schematic diagram of the assembly state of the electronic cigarette motor assembly 4 and the oil supply pipe 3 of the present invention;
[0013] Figure 3 It is a three-dimensional exploded view of the electronic cigarette of the present invention. DETAILED DESCRIPTION
[0014] The following embodiments are descriptions of specific implementation methods of the present invention. Such descriptions are intended to facilitate understanding of the technical solutions of the present application by those skilled in the art and are not intended to limit the scope of protection of the technical solutions of the present invention. Any equivalent transformations that can be obtained based on the description of the embodiments of the present invention should fall within the scope of protection of the present invention.
[0015] like Figures 1 to 3 As shown, the electronic cigarette of the present invention includes an oil tank 1, oil storage cotton 2, an oil supply pipe 3 and a motor assembly 4. The oil supply pipe 3 connects the oil tank 1 and the oil storage cotton 2; that is, one end of the oil supply pipe is connected to the oil tank 1; and the other end is connected to the oil storage cotton 2.
[0016] like Figure 2 As shown, the motor assembly 4 includes a stepper motor 41, a reducer 42, and a rotor 43. The output of the stepper motor 41 passes through the reducer 42 and is then connected to the rotor 43. A radial roller 44 is connected to the front end of the rotor 43. A rotating chamber 45 is provided outside the roller 44. A section of the oil supply pipe 3 is bent within the rotating chamber 45 and wound around the outside of the roller 44.
[0017] The two ends of the roller 44 can cooperate with the inner wall of the rotary chamber 45 to separate the oil supply pipe 3 into three sections, namely the oil tank 1 and the roller 44 section, the roller 44 section and the roller 44 and the oil storage cotton 2 section. Figure 2 When the state shown continues to rotate clockwise, Figure 2 The left end of roller 44 is shown disengaged from the oil supply pipe 3; the right end of roller 44 presses the oil in roller 44's section within the oil supply pipe 3 into roller 44 and the oil storage cotton section 2. As roller 44 continues to rotate, its left end rotates to the right, completing the press fit with the oil supply pipe 3. The oil in oil reservoir 1 and roller 44's section joins the oil in the next roller 44 section. Thus, by controlling the rotation of roller 44, oil is supplied to the oil storage cotton 2 in a controlled manner. This invention has a certain delay in oil supply during initial use; the operating time of the peristaltic stepper motor 41 can be adjusted to delay the control to ensure a normal initial oil supply.
[0018] Figure 1 、 3 The electronic cigarette structure shown is an example for explaining the technical solution of the present invention; however, the present invention is not limited to the structure of the remaining parts of the electronic cigarette shown in the figure; the remaining parts are irrelevant to the implementation of the aforementioned solution and will not be described in detail here.
Claims
1. An electronic cigarette supplied with oil by a motor, comprising an oil tank, oil storage cotton, and an oil supply pipe; the oil supply pipe connecting the oil tank and the oil storage cotton; characterized in that: The motor assembly is also included; the motor assembly is arranged on the outside of the oil supply pipe and can flatten the oil supply pipe by squeezing to cut off the oil path of the oil supply pipe.
2. The electronic cigarette with oil supply by a motor according to claim 1, characterized in that: The motor assembly includes a stepper motor, a reducer and a rotor; the output of the stepper motor passes through the reducer and is connected to the rotor.
3. The electronic cigarette with oil supply by a motor according to claim 2, characterized in that: It also includes a rotating cavity for the oil supply pipe; a section of the oil supply pipe is bent in the rotating cavity; the rotor is placed in the center of the rotating cavity; the rotor can cooperate with the inner wall of the rotating cavity to flatten the oil supply pipe and cut off the oil path inside the oil supply pipe.
4. The electronic cigarette with oil supply by a motor according to claim 3, characterized in that: The front end of the rotor is connected to a radial roller; the two ends of the roller can cooperate with the inner wall of the rotating chamber to divide the oil supply pipe into three sections, namely the oil bin and roller section, the roller section, and the roller and oil storage cotton section; when the roller rotates driven by the stepper motor, the tobacco oil in the roller section of the oil supply pipe can be pressed into the roller and oil storage cotton section; as the roller continues to rotate, the tobacco oil in the oil bin and roller section becomes the tobacco oil in the next roller section.