A rechargeable battery of an electronic cigarette through a conductive shell to turn on the electrode to the end
By placing a circuit board at the bottom of the electronic cigarette battery and using conductive and insulating sleeves to connect the positive and negative terminals of the battery to the end, the problem of the charging interface affecting aesthetics is solved, the structure is simplified, and the cost is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 廖志冰
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-21
AI Technical Summary
The existing charging interface design for electronic cigarettes involves opening holes in the side wall of the casing, which affects aesthetics and increases structural complexity and cost.
A circuit board is placed at the bottom of the battery, with a downward-facing charging interface on the circuit board. The positive and negative terminals of the battery are connected to the end of the battery through a conductive sleeve and an insulating sleeve, simplifying the structure and placing the charging interface at the bottom of the battery.
This approach simplifies the structural design of electronic cigarettes without compromising aesthetics, thereby reducing processing and assembly costs and material consumption.
Smart Images

Figure CN224537285U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of batteries, in particular to a rechargeable battery for an electronic cigarette, which is applied to an electronic cigarette and is capable of conducting electrodes to the end through a conductive shell. BACKGROUND
[0002] An electronic cigarette is an electronic product that generates aerosol vapor for a user to smoke by heating a heating element through electricity, and atomizes the tobacco liquid introduced by a tobacco liquid guide through high temperature to form aerosol vapor. The electronic cigarette is internally provided with a battery unit to supply power to the internal circuit board and the heating element. The battery unit is designed according to the shape of the electronic cigarette, and some use a lithium battery pack and some use a cylindrical battery. The applicant has previously applied for a utility model patent, with the publication number CN222997439U and the name of a self-top-down assembled electronic cigarette. In the design of the electronic cigarette, a cylindrical battery is used, and the overall electronic cigarette is in a cylindrical shape. The charging interface of the cylindrical battery in this scheme is on the upper side of the battery. The charging interface is provided on the side wall of the shell of the electronic cigarette, which causes the side wall of the shell of the electronic cigarette to be provided with a hole for connecting the charging interface, affecting the appearance. If the charging interface is set at the lower end of the battery on the basis of the technical scheme, an additional circuit board needs to be provided at the lower end of the battery, and the charging interface is set on the circuit board. The original circuit board at the upper end of the battery needs to be connected to the circuit board at the lower end by wires. This causes the structure to be complicated, and the processing and assembly costs and material costs increase. SUMMARY
[0003] To overcome the above technical problems, the present disclosure provides a rechargeable battery for an electronic cigarette, which is capable of conducting electrodes to the end through a conductive shell. The battery is provided with a circuit board at the lower end, the circuit board is provided with a downward charging interface, the positive and negative electrodes of the battery are connected to the circuit board, and the positive and negative electrodes of the battery are conducted to the end of the battery opposite to the other end where the circuit board is provided.
[0004] According to one aspect of this disclosure, a rechargeable battery for an electronic cigarette, which conducts electricity from electrodes to the end via a conductive shell, is provided. The battery includes a cylindrical cell with a first electrode and a second electrode at its upper and lower ends, respectively. A first conductive shell is fitted over the cylindrical cell, followed by an insulating shell, and then a second conductive shell. The first conductive shell is a hollow cylindrical shell with an open lower end and a sealed upper end. The first electrode of the cylindrical cell abuts against the inner wall of the sealed portion of the first conductive shell. The insulating shell has an open lower end and an annular port at its upper end, which is fastened to the upper edge of the first conductive shell. The second conductive shell... The battery casing is a hollow cylindrical shell with a first flange at the top. The first flange is fastened to the annular port of the insulating casing. The annular port has a width greater than the flange width of the first flange. The lower port formed by the lower ends of the first conductive casing, the insulating casing, and the second conductive casing is provided with a circuit board and a bottom cover. The top surface of the circuit board is connected to the second electrode of the cylindrical battery cell. The circuit board is provided with a first conductive spring, a second conductive spring, and a charging socket. The first conductive spring abuts against the inner wall of the first conductive casing, and the second conductive spring abuts against the inner wall of the second conductive casing. The charging socket has a downward-facing insertion port, and the bottom cover has a through hole exposing the insertion port of the charging socket.
[0005] Furthermore, an annular insulating pad is provided between the upper end of the first conductive sleeve and the annular port of the insulating sleeve to increase the insulation thickness of the annular port.
[0006] Furthermore, the circuit board is circular, and a first pad is provided in the center of the top surface of the circuit board. A conductive pillar is soldered to the first pad. The upper end of the conductive pillar abuts against the second electrode of the cylindrical battery cell. The charging socket is electrically connected to the conductive pillar, the charging socket is electrically connected to the first conductive spring, and the second conductive spring is electrically connected to the conductive pillar.
[0007] Furthermore, the bottom cover is a circular cover with an opening at the top. The inner side of the opening at the top of the bottom cover is provided with an inner step along the edge of the opening. The circuit board is embedded in the inner step. The middle of the outer wall of the bottom cover is provided with an outer step that forms around the outer wall of the bottom cover. The lower ends of the first conductive sleeve and the insulating sleeve are flush and fitted onto the outer step. The bottom of the bottom cover is fitted into the lower end of the second conductive sleeve, and the lower end of the second conductive sleeve is provided with a second flange that fastens to the bottom edge of the bottom cover.
[0008] Furthermore, a second pad is provided on the top surface of the circuit board near the edge. The second pad is soldered to a first conductive spring. The first conductive spring is bent outward to the side wall of the outer step of the bottom cover. The second pad is electrically connected to the charging socket.
[0009] Furthermore, a third pad is provided on the bottom surface of the circuit board near the edge, and a second conductive spring is soldered to the third pad. A slot is provided on the bottom of the bottom cover near the edge, and the second conductive spring passes through the slot and is bent and folded against the outer wall below the outer step of the bottom cover. The third pad is electrically connected to the first pad.
[0010] Furthermore, the circuit board is also equipped with a microphone sensor and an LED indicator. The bottom of the bottom cover is provided with a bottom air inlet, and the side wall below the outer step of the bottom cover and the side wall of the second conductive sleeve are provided with corresponding side air outlets.
[0011] The rechargeable battery structure disclosed in this technical solution has the following beneficial effects: A first conductive sleeve is fitted over a cylindrical battery cell, and the first conductive sleeve conducts electricity to the first electrode at the upper end of the cylindrical battery cell. Simultaneously, a first conductive spring contact is provided on the circuit board at the lower end of the cylindrical battery cell, making contact with the first conductive sleeve. An insulating sleeve is fitted over the first conductive sleeve, and a second conductive sleeve is fitted over the insulating sleeve. The insulating sleeve serves as an isolation layer. The second electrode at the lower end of the second conductive sleeve is connected to the circuit board, and the circuit board has a second conductive spring contact making contact with the second conductive sleeve. A first flange is designed at the upper end of the second conductive sleeve, thereby achieving overall conductivity between the first and second electrodes of the cylindrical battery cell at the upper end, facilitating connection with the electrode pins of the atomizing core of the electronic cigarette. This solution requires only one circuit board, with the lower end of the cylindrical battery cell having a downward-facing charging socket, facilitating placement inside the electronic cigarette casing for bottom-plug charging without removing the battery. Attached Figure Description
[0012] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this disclosure together with the specification and serve to explain the principles of this disclosure.
[0013] Figure 1 This is an exploded view of the overall structure of the rechargeable battery of this utility model.
[0014] Figure 2 This is an exploded view of the rechargeable battery structure of this utility model from another perspective.
[0015] Figure 3 This is a cross-sectional view of the rechargeable battery structure of this utility model.
[0016] Figure 4 This is a perspective view of the overall structure of the rechargeable battery of this utility model.
[0017] Figure 5 This is a cross-sectional view of the overall structure of an electronic cigarette in which the rechargeable battery of this utility model is applied.
[0018] Figure 6 This is a schematic diagram showing the electrode connection between the rechargeable battery of this invention and the heating element of the atomizing core inside the e-cigarette's reservoir. Detailed Implementation
[0019] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this disclosure.
[0020] Please refer to Figures 1 to 5 This technical solution discloses a specific embodiment of an electronic cigarette in which a rechargeable battery, through a conductive shell, conducts electricity from electrodes to the end. It includes a cylindrical battery cell 1, with a first electrode and a second electrode at its upper and lower ends, respectively. The first and second electrodes are the negative and positive electrodes, or vice versa. A first conductive shell 2 is fitted over the cylindrical battery cell 1, followed by an insulating shell 4, and then a second conductive shell 5. The first conductive shell 2 is a hollow cylindrical shell with an open lower end and a sealed upper end. The first electrode of the cylindrical battery cell 1 abuts against the inner wall of the sealed portion of the first conductive shell 2. The insulating shell 4 has an open lower end and an annular port 401 at its upper end, which is fastened to the upper edge of the first conductive shell 2. The second conductive sleeve 5 is a hollow cylindrical shell with a first flange 501 at the upper end. The first flange 501 is fastened to the annular port 401 of the insulating sleeve 4. The annular port 401 has a wider ring than the flange width of the first flange 501. The lower port formed by the lower ends of the first conductive sleeve 2, the insulating sleeve 4, and the second conductive sleeve 5 is provided with a circuit board 6 and a bottom cover 7. The top surface of the circuit board 6 is connected to the second electrode of the cylindrical battery cell 1. The circuit board 6 is provided with a first conductive spring 601, a second conductive spring 602, and a charging female connector 603. The first conductive spring 601 abuts against the inner wall of the first conductive sleeve 2, and the second conductive spring 602 abuts against the inner wall of the second conductive sleeve 5. The plug-in interface of the charging female connector 603 faces downward. The bottom cover 7 is provided with a through hole that exposes the plug-in interface of the charging female connector 603.
[0021] Furthermore, an annular insulating pad 3 is provided between the upper end of the first conductive sleeve 2 and the annular port 401 of the insulating sleeve 4. The annular insulating pad 3 is used to increase the insulation thickness of the annular port (401).
[0022] Please refer to Figure 1 , Figure 2The circuit board 6 is circular, and a first pad is provided in the center of the top surface of the circuit board 6. A conductive pillar 604 is soldered to the first pad. The upper end of the conductive pillar abuts against the second electrode of the cylindrical battery cell 1. The charging socket 603 is electrically connected to the conductive pillar 604. The charging socket 603 is electrically connected to the first conductive spring 601. The second conductive spring 602 is electrically connected to the conductive pillar 604.
[0023] Please refer to Figures 1 to 3 Furthermore, the bottom cover 7 is a circular cover with an opening at the top. An inner step 701 along the edge of the opening is provided on the inner side of the top opening of the bottom cover 7. The circuit board 6 is embedded in the inner step 701. An outer step 702 along the circumference of the outer wall of the bottom cover 7 is provided at the middle of the outer wall. The lower ends of the first conductive sleeve 2 and the insulating sleeve 4 are flush and fitted onto the outer step 702. The bottom of the bottom cover 7 is fitted inside the lower end of the second conductive sleeve 5, and the lower end of the second conductive sleeve 5 has a second flange that fastens to the bottom edge of the bottom cover 7. Specifically, a second solder pad is provided on the top surface of the circuit board 6 near the edge. The second solder pad is soldered to the first conductive spring 601, which is bent outwards to the side wall of the outer step 702 of the bottom cover 7. The second solder pad is electrically connected to the charging socket 603. The circuit board 6 has a third pad near its edge on its bottom surface, where a second conductive spring 602 is soldered. The bottom cover 7 has a slot 703 near its edge on its bottom surface. The second conductive spring 602 passes through the slot 703 and bends against the outer wall below the outer step 702 of the bottom cover 7. The third pad is electrically connected to the first pad. Preferably, the first conductive spring 601 and the second conductive spring 602 are cold-rolled nickel-plated springs.
[0024] Furthermore, the circuit board 6 is also equipped with a microphone sensor and an LED indicator. The bottom of the bottom cover 7 is provided with a bottom air inlet 704, and the side wall below the outer step 702 of the bottom cover 7 and the side wall of the second conductive sleeve 5 are provided with corresponding side air passages. If the microphone sensor is installed on the top surface of the circuit board 6, then an air inlet hole for activating the microphone sensor needs to be provided on the circuit board 6.
[0025] Please refer to Figure 5 , Figure 6This solution applies a rechargeable battery to electronic cigarettes. In the cylindrical electronic cigarette of this solution, the connection structure of the electrode pins of the heating element of the atomizer core is disclosed in patent publication CN222997439U, entitled "An Electronic Cigarette Assembled from Top to Bottom." The atomizer core is housed within the oil reservoir, and the electrode pins of the heating element extend from the lower oil seal of the oil reservoir. The negative pin of the heating element is connected to a spring located at the center, and the positive pin of the heating element is connected to a conductive cap ring fitted onto the lower oil seal. In the rechargeable battery designed in this solution, the spring connecting the positive pin of the heating element of the atomizer core within the electronic cigarette's oil reservoir abuts against the sealing end face exposed from the annular port 401 of the insulating shell 4 and the inner side of the first flange 501 of the second conductive shell 5 at the upper end of the first conductive shell 2, thereby connecting the electronic cigarette to the negative terminal of the battery. The conductive cover ring abuts against the first flange 501 of the second conductive sleeve 5, thereby connecting the electronic cigarette to the positive terminal of the battery.
[0026] Please refer to Figure 5 As shown in the cross-sectional view of the electronic cigarette structure in this embodiment, the airflow direction during use is as follows: external air enters from the bottom air inlet 704 of the bottom cover 7, then enters the gap between the outer wall of the rechargeable battery and the inner wall of the electronic cigarette housing through the side air outlet, then enters the lower end of the e-liquid cup of the electronic cigarette, enters the atomizing core channel, and is output from the mouthpiece.
[0027] The parts not described in detail in this technical solution specification are obvious to those skilled in the art and can be supplemented and improved based on existing technical knowledge. At the same time, those skilled in the art should understand that the above embodiments are merely preferred embodiments of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A rechargeable battery for an electronic cigarette, wherein the electrodes are connected to the end via a conductive shell, comprising a cylindrical battery cell (1), the upper and lower ends of the cylindrical battery cell (1) being a first electrode and a second electrode, respectively, characterized in that, The cylindrical battery cell (1) is fitted with a first conductive shell (2), which is fitted with an insulating shell (4), and the insulating shell (4) is fitted with a second conductive shell (5). The first conductive shell (2) is a hollow cylindrical shell with an open bottom and a sealed top. The first electrode of the cylindrical battery cell (1) abuts against the sealed inner wall of the first conductive shell (2). The insulating shell (4) is an open bottom and has a circular port (401) at the top. The circular port (401) is fastened to the upper edge of the first conductive shell (2). The second conductive shell (5) is a hollow cylindrical shell with a first flange (501) at the top. The first flange (501) is fastened to the circular port (401) of the insulating shell (4). Above, the ring width of the annular port (401) is greater than the flange width of the first flange (501); the lower port formed by the lower ends of the first conductive shell (2), the insulating shell (4), and the second conductive shell (5) is provided with a circuit board (6) and a bottom cover (7). The top surface of the circuit board (6) is connected to the second electrode of the cylindrical battery cell (1). The circuit board (6) is provided with a first conductive spring (601), a second conductive spring (602), and a charging female socket (603). The first conductive spring (601) abuts against the inner wall of the first conductive shell (2), and the second conductive spring (602) abuts against the inner wall of the second conductive shell (5). The plug-in interface of the charging female socket (603) faces downward. The bottom cover (7) is provided with a through hole that exposes the plug-in interface of the charging female socket (603).
2. The electronic cigarette according to claim 1, wherein the electrodes are connected to the end via a conductive shell, characterized in that, An annular insulating pad (3) is provided between the upper end of the first conductive sleeve (2) and the annular port (401) of the insulating sleeve (4) to increase the insulation thickness of the annular port (401).
3. The electronic cigarette according to claim 1, wherein the electrodes are connected to the end via a conductive shell, characterized in that, The circuit board (6) is circular. A first pad is provided in the center of the top surface of the circuit board (6). A conductive pillar (604) is soldered to the first pad. The upper end of the conductive pillar abuts against the second electrode of the cylindrical battery cell (1). The charging socket (603) is electrically connected to the conductive pillar (604). The charging socket (603) is electrically connected to the first conductive spring (601). The second conductive spring (602) is electrically connected to the conductive pillar (604).
4. The electronic cigarette according to claim 3, wherein the electrodes are connected to the end via a conductive shell, characterized in that, The bottom cover (7) is a circular cover with an opening at the top. The inner side of the opening at the top of the bottom cover (7) is provided with an inner step (701) along the edge of the opening. The circuit board (6) is embedded in the inner step (701). The middle part of the outer wall of the bottom cover (7) is provided with an outer step (702) formed around the outer wall of the bottom cover (7). The lower ends of the first conductive sleeve (2) and the insulating sleeve (4) are flush and fitted onto the outer step (702). The bottom of the bottom cover (7) is fitted into the lower end of the second conductive sleeve (5), and the lower end of the second conductive sleeve (5) is provided with a second flange that fastens to the bottom edge of the bottom cover (7).
5. The electronic cigarette according to claim 4, wherein the electrodes are connected to the end via a conductive shell, characterized in that, The circuit board (6) has a second pad near the edge on its top surface. The second pad is soldered to a first conductive spring (601). The first conductive spring (601) is bent outward to the side wall of the outer step (702) of the bottom cover (7). The second pad is electrically connected to the charging socket (603).
6. The electronic cigarette according to claim 5, wherein the electrodes are connected to the end via a conductive shell, characterized in that, The bottom surface of the circuit board (6) is provided with a third pad near the edge, and the third pad is used to solder a second conductive spring (602). The bottom of the bottom cover (7) is provided with a slot (703) near the edge. The second conductive spring (602) passes through the slot (703) and is bent and folded against the outer wall below the outer step (702) of the bottom cover (7). The third pad is electrically connected to the first pad.
7. The electronic cigarette according to claim 5, wherein the electrodes are connected to the end via a conductive shell, characterized in that, The circuit board (6) is also provided with a microphone sensor and an LED indicator. The bottom of the bottom cover (7) is provided with a bottom air inlet (704). The side wall below the outer step (702) of the bottom cover (7) and the side wall of the second conductive sleeve (5) are provided with corresponding side air passages.