Electronic cigarette with protective structure and detachable battery

Abstract

The utility model discloses a detachable battery of electronic cigarette with protection structure, including battery main part, and battery main part includes soft pack battery and casing, and the inside of casing has the accommodation cavity, and the soft pack battery is embedded in the accommodation cavity, still includes end cover, and the opening of casing is installed to end cover, still be equipped with the connecting unit on end cover, and the inside and outside both sides of end cover are penetrated to connecting unit, and the part of connecting unit is penetrated to the outside of end cover with detachable mode and is connected with electronic cigarette, the soft pack battery still includes the exposed pole lug, and the pole lug is to end cover, and is connected with connecting unit electricity. The utility model discloses one aspect with detachable mode through connecting unit and installs battery on electronic cigarette, when the battery needs replacement, has improved the convenience of replacement, on the other hand, through the casing protection to the soft pack battery, prevents the battery fall and causes the damage.

Description

Technical Field

[0001] This utility model belongs to the field of electronic cigarettes, specifically relating to a removable battery for electronic cigarettes with a protective structure. Background Technology

[0002] Electronic cigarettes, as electronic atomization devices, convert e-liquid into a mist to simulate the smoking experience. Compared to traditional tobacco, e-cigarettes effectively reduce harmful substances in tobacco, such as tar and carbon monoxide produced during combustion, making them popular. Most existing e-cigarettes consist of an atomizer, a battery, and a cartridge. To protect the battery, it is usually fixed inside the e-cigarette's casing, which provides protection. However, this casing makes battery replacement difficult and maintenance challenging.

[0003] In existing technologies, such as patent document CN104161304A, an integrated electronic cigarette is disclosed, including an integrated electronic cigarette body. The integrated electronic cigarette body includes an atomizer and a battery assembly, and the atomizer core and the battery are electrically connected through a positive electrode pin. This integrated design avoids the electronic cigarette becoming unusable due to failure at the connection between the atomizer and the battery rod; however, when the electronic cigarette's battery fails and needs to be replaced, it actually increases the difficulty of battery replacement. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model proposes a removable battery for electronic cigarettes with a protective structure. On the one hand, the battery is installed in a removable manner on the electronic cigarette through a connecting unit, which improves the convenience of battery replacement when needed. On the other hand, the casing protects the soft-pack battery from damage caused by drops.

[0005] This invention is implemented as follows: A removable electronic cigarette battery with a protective structure includes a battery body, which comprises a pouch battery and a hollow shell. One end of the shell is open, forming a semi-closed cavity inside. The pouch battery is embedded in the cavity, and the shell covers the pouch battery. The sealing material of the pouch battery is usually aluminum-plastic film. Aluminum-plastic film is soft and easily damaged when subjected to impact from sharp objects or external pressure, leading to safety problems such as battery leakage and short circuits. The shell is used to protect the pouch battery, preventing it from being impacted by sharp objects or subjected to external pressure during operation, reducing the safety risks of battery leakage and short circuits, and improving the safety of the pouch battery.

[0006] The device also includes an end cap corresponding to the housing, which is installed at the opening of the housing to form a closed protective cavity. The end cap also has a connecting unit that extends through both the inner and outer sides of the end cap, with the portion extending through the outer side of the end cap being detachably connected to the electronic cigarette. The pouch battery also includes exposed tabs facing the end cap and electrically connected to the connecting unit, thus electrically connecting the pouch battery to the electronic cigarette. The electronic cigarette has a power interface corresponding to the connecting unit. When the battery is installed on the electronic cigarette, the connecting unit engages or plugs into the power interface, forming a detachable connection between the battery and the electronic cigarette. This improves the convenience of battery replacement when the electronic cigarette battery fails.

[0007] Preferably, an overload protection unit is further provided between the electrode tab and the end cap. The overload protection unit includes a circuit board, one end of which is soldered to the electrode tab, and the other end is electrically connected to the connection unit. The overload protection unit is used to limit the maximum current flowing through the pouch battery, preventing excessive current caused by a short circuit in the electronic cigarette from damaging the pouch battery, thus reducing the risk of damage to the pouch battery.

[0008] Specifically, the connection unit is a snap-fit ​​connector. One end of the snap-fit ​​connector, penetrating the outer side of the end cap, has multiple parallel snap-fit ​​slots. The sidewalls of these slots have protruding snap-fit ​​portions. When the removable battery is installed in the electronic cigarette, the snap-fit ​​portions engage with the electronic cigarette. The other end is electrically connected to the circuit board. This snap-fit ​​connector connects the battery to the electronic cigarette, avoiding secondary soldering and making battery installation and removal more convenient. Furthermore, the snap-fit ​​connector can withstand a certain amount of impact, further improving its reliability.

[0009] Specifically, a blade is provided between adjacent snap-fit ​​slots, the edge of which gradually increases from the outside to the inside, forming a guide portion; the end cap is also provided with positioning portions symmetrically arranged on both sides of the snap-fit ​​connector. When the removable battery is installed on the electronic cigarette, the positioning portions and guide portions connect to the electronic cigarette first and then last. The guide portion is used to guide the snap-fit ​​connector during connection, avoiding dimensional errors in parts that could cause the snap-fit ​​connector to not connect smoothly, thus improving the smoothness of the snap-fit ​​connector connection.

[0010] Alternatively, the connection unit includes an FPC (Flexible Printed Circuit) and a BTB (Board-to-Board) connector. The first end of the FPC is electrically connected to the circuit board, and the second end of the FPC passes through the end cap from the inside out, exposing the second end. The BTB connector is mounted on the second end of the FPC and is electrically connected to the FPC connector. By externalizing the BTB connector, the space occupied by the BTB connector within the receiving cavity is reduced, allowing the receiving cavity to accommodate a larger pouch battery and increasing the battery capacity.

[0011] Specifically, the end cap has a mounting groove corresponding to the BTB connector, and the BTB connector is installed in the mounting groove. By installing the BTB connector in the mounting groove, the FPC is concealed within the receiving cavity, reducing the risk of the FPC being scratched during installation and improving the safety of the FPC.

[0012] Specifically, the end cap also has a connecting portion on its end face, which extends along the direction of the battery body; the connecting portion also has a connecting groove located at the bottom of the connecting portion. The connecting portion is used for positioning the battery when it is installed on the electronic cigarette, improving the installation accuracy of the battery; the connecting groove is used for snapping the battery in place during installation, improving the installation reliability of the battery.

[0013] As an equivalent alternative, the end of the FPC extends through the end cap and then extends along the extension direction of the battery body, giving the BTB connector a certain amount of room to move, reducing the installation accuracy required for the BTB connector, and improving the ease of installation of the BTB connector.

[0014] Specifically, the end cap is also provided with a clearance groove that is adapted to the electrode tab, and the clearance groove extends laterally through both sides of the end cap. The clearance groove is used to avoid the electrode tab, reducing the risk of damaging the electrode tab during the installation of the end cap.

[0015] Preferably, the housing is made of steel alloy or aluminum alloy, and the thickness of the housing is greater than or equal to 0.1 mm.

[0016] The beneficial effects of this utility model are:

[0017] This invention proposes a detachable battery for electronic cigarettes with a protective structure. On the one hand, the battery and electronic cigarette are detachably connected by the connecting unit and the power interface, which improves the convenience of battery replacement when the electronic cigarette battery fails. On the other hand, the housing protects the pouch battery from impacts from sharp objects or external pressure during use, reducing the safety risks of battery leakage and short circuits, and improving the safety of the pouch battery. Attached Figure Description

[0018] Figure 1 This is an exploded schematic diagram of the detachable battery in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the end cap of the detachable battery according to Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the blade connector for the detachable battery in Embodiment 1 of this utility model;

[0021] Figure 4 This is an exploded schematic diagram of the detachable battery in Embodiment 2 of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection unit and overload protection unit of the detachable battery in Embodiment 2 of this utility model;

[0023] Figure 6 This is a schematic diagram of the end cap of the detachable battery in Embodiment 2 of this utility model;

[0024] Figure 7 This is another schematic diagram of the end cap of the detachable battery in Embodiment 2 of this utility model;

[0025] Figure 8 This is an exploded schematic diagram of the detachable battery in Embodiment 3 of this utility model;

[0026] Figure 9 This is a schematic diagram of the connection unit and overload protection unit of the detachable battery in Embodiment 3 of this utility model.

[0027] Figure label:

[0028] 1. Battery body; 2. End cap; 3. Overload protection unit; 11. Soft pack battery; 12. Housing; 21. Connecting unit; 22. Positioning part; 23. Mounting slot; 24. Connecting part; 25. Clearance slot; 111. Tab; 121. Receiving cavity; 211. Snap-fit ​​slot; 212. Snap-fit ​​part; 213. Blade; 214. Guide part; 215. FPC; 216. BTB connector; 241. Connecting slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figures 1-3 As shown, a removable electronic cigarette battery with a protective structure includes a battery body 1. The battery body 1 includes a pouch battery 11 and a hollow shell 12. One end of the shell 12 is open, forming a semi-closed receiving cavity 121 inside the shell 12. The pouch battery 11 is embedded in the receiving cavity 121, and the shell 12 covers the pouch battery 11. The sealing material of the pouch battery 11 is usually an aluminum-plastic film. The aluminum-plastic film is soft and easily damaged when subjected to impact from sharp objects or external pressure, leading to safety problems such as battery leakage and short circuit. The shell 12 is used to protect the pouch battery 11, preventing it from being impacted by sharp objects or subjected to external pressure during the process, reducing the safety risks of battery leakage and short circuit, and improving the safety of the pouch battery 11.

[0032] The system also includes an end cap 2 corresponding to the housing 12. The end cap 2 is installed at the opening of the housing 12, forming a closed protective cavity 121. The end cap 2 is also provided with a connecting unit 21, which extends through both the inner and outer sides of the end cap 2. The portion of the connecting unit 21 extending through the outer side of the end cap 2 is detachably connected to the electronic cigarette. The soft-pack battery 11 also includes exposed tabs 111 facing the end cap 2 and electrically connected to the connecting unit 21, thus electrically connecting the soft-pack battery 11 to the electronic cigarette. The electronic cigarette has a power interface corresponding to the connecting unit 21. When the battery is installed on the electronic cigarette, the connecting unit 21 engages or plugs into the power interface, forming a detachable connection between the battery and the electronic cigarette. This improves the convenience of battery replacement when the electronic cigarette battery fails.

[0033] In this embodiment, an overload protection unit 3 is also provided between the tab 111 and the end cap 2. The overload protection unit 3 includes a circuit board, one end of which is soldered to the tab 111, and the other end is electrically connected to the connection unit 21. The overload protection unit 3 is used to limit the maximum current flowing through the pouch battery 11, preventing the electronic cigarette from short-circuiting and causing excessive current that could damage the pouch battery 11, thus reducing the risk of damage to the pouch battery 11.

[0034] In this embodiment, the overload protection unit 3 is a battery protection chip with integrated MOSFET (metal-oxide-semiconductor transistor), specifically model OMS221D-FE.

[0035] Specifically, the connecting unit 21 is a snap-fit ​​connector. One end of the snap-fit ​​connector, penetrating the outer side of the end cap 2, has multiple parallel snap-fit ​​slots 211. The sidewalls of the snap-fit ​​slots 211 have protruding snap-fit ​​portions 212. When the removable battery is installed on the electronic cigarette, the snap-fit ​​portions 212 snap into the electronic cigarette. The other end is electrically connected to the circuit board. Connecting the battery to the electronic cigarette via the snap-fit ​​connector avoids secondary soldering, making battery installation and removal more convenient. Simultaneously, the snap-fit ​​connector can withstand a certain amount of impact, further improving its reliability.

[0036] Specifically, adjacent snap-fit ​​slots 211 are provided with blades 213, the edges of which gradually increase from the outside to the inside, forming guide portions 214; the end cap 2 is also provided with positioning portions 22 symmetrically arranged on both sides of the snap-fit ​​connector. When the removable battery is installed on the electronic cigarette, the positioning portions 22 and guide portions 214 are connected to the electronic cigarette one after the other. The guide portions 214 are used to guide the snap-fit ​​connector during connection, avoiding part size errors that cause the snap-fit ​​connector to be disconnected awkwardly, thus improving the smoothness of the snap-fit ​​connector connection.

[0037] In this embodiment, the housing 12 is made of steel alloy and the thickness of the housing 12 is 0.1 mm.

[0038] Example 2

[0039] like Figures 4-7 As shown, this is one embodiment of the present invention. The main technical solution of this embodiment is the same as that of Embodiment 1. Features not explained in this embodiment are explained in Embodiment 1 and will not be repeated here. The difference between this embodiment and Embodiment 1 is:

[0040] In this embodiment, the connection unit 21 includes an FPC 215 (flexible printed circuit board) and a BTB connector 216 (board-to-board connector). The first end of the FPC 215 is electrically connected to the circuit board, and the second end of the FPC 215 passes through the end cap 2 from the inside out, exposing the second end. The BTB connector 216 is mounted on the second end and electrically connected to the FPC 215 connector. By externalizing the BTB connector 216, the space occupied by the BTB connector 216 within the receiving cavity 121 is reduced, allowing the receiving cavity 121 to accommodate a larger pouch battery 11 and increasing the battery capacity.

[0041] Specifically, the end cap 2 is provided with a mounting groove 23 corresponding to the BTB connector 216, and the BTB connector 216 is installed in the mounting groove 23. By installing the BTB connector 216 in the mounting groove 23, the FPC 215 is concealed within the receiving cavity 121, reducing the risk of the FPC 215 being scratched during installation and improving the safety of the FPC 215.

[0042] Specifically, the end cap 2 also has a connecting portion 24 on its end face, which extends along the direction of the battery body 1; the connecting portion 24 also has a connecting groove 241, which is located at the bottom of the connecting portion 24. The connecting portion 24 is used for positioning the battery when it is installed on the electronic cigarette, improving the installation accuracy of the battery; the connecting groove 241 is used for snapping the battery in place during installation, improving the installation reliability of the battery.

[0043] Specifically, the end cap 2 is also provided with a clearance groove 25 that is adapted to the electrode tab 111, and the clearance groove 25 extends laterally through both sides of the end cap 2. The clearance groove 25 is used to avoid the electrode tab 111, reducing the risk of damaging the electrode tab 111 during the installation of the end cap 2.

[0044] Example 3

[0045] like Figures 8-9 As shown, this is one embodiment of the present invention. The main technical solution of this embodiment is the same as that of embodiment 2. Features not explained in this embodiment are explained in embodiment 1 and will not be repeated here. The difference between this embodiment and embodiment 1 is:

[0046] In this embodiment, after the end of the FPC215 passes through the end cap 2, it extends along the extension direction of the battery body 1, giving the BTB connector 216 a certain amount of room to move, reducing the installation accuracy required for the BTB connector 216, and improving the installation convenience of the BTB connector 216.

[0047] Example 4

[0048] This is one embodiment of the present invention. The main technical solution of this embodiment is the same as that of Embodiment 2. Features not explained in this embodiment are explained in Embodiment 2 and will not be repeated here. The difference between this embodiment and Embodiment 2 is as follows:

[0049] In this embodiment, the overload protection unit 3 is fixed to the front end of the battery body 1 by low-pressure injection molding, so that the overload protection unit 3 can be electrically connected to the battery body 1 without cables. On the one hand, this reduces the space occupied by the BTB connector 216 in the housing 12, allowing the housing 12 to accommodate a larger soft-pack battery 11 without changing its volume, thereby increasing the battery's energy storage capacity and range. On the other hand, it reduces the number of cables used for electrical connection on the battery body 1, reducing the risk of damage when the battery is exposed outside the battery compartment.

[0050] Specifically, the battery compartment of the electronic cigarette also has an output FPC, which is electrically connected to the BTB connector 216 in the battery body 1. The FPC has a certain deformation capability, which allows the battery to have an adaptive effect during installation, thereby reducing the precision requirements during battery assembly and improving assembly convenience.

[0051] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A removable battery for electronic cigarettes with a protective structure, comprising a battery body, the battery body including a pouch battery and a hollow casing, characterized in that: One end of the housing is open, forming a semi-closed receiving cavity inside the housing. The soft-pack battery is embedded in the receiving cavity, and the housing covers the soft-pack battery. It also includes an end cap corresponding to the housing, which is installed at the opening of the housing to form a closed protective cavity; the end cap is also provided with a connecting unit, which penetrates through the inner and outer sides of the end cap, and the portion of the connecting unit penetrating through the outer side of the end cap is detachably connected to the electronic cigarette; the pouch battery also includes exposed tabs, which face the end cap and are electrically connected to the connecting unit, so that the pouch battery is electrically connected to the electronic cigarette.

2. The removable battery for electronic cigarettes with a protective structure according to claim 1, characterized in that: An overload protection unit is also provided between the electrode tab and the end cap. The overload protection unit includes a circuit board, one end of which is soldered to the electrode tab and the other end is electrically connected to the connection unit.

3. The removable battery for electronic cigarettes with a protective structure according to claim 2, characterized in that: The connection unit is a blade-type connector. One end of the blade-type connector, which passes through the outer side of the end cover, has multiple parallel snap-fit ​​slots. The sidewall of the snap-fit ​​slot has a protruding snap-fit ​​part. When the removable battery is installed on the electronic cigarette, the snap-fit ​​part snaps into the electronic cigarette. The other end is electrically connected to the circuit board.

4. The removable battery for electronic cigarettes with a protective structure according to claim 3, characterized in that: There are blades between adjacent snap-fit ​​slots, and the edges of the blades gradually increase from the outside to the inside to form guide portions; the end cap is also provided with positioning portions symmetrically arranged on both sides of the blade snap-fit ​​connector. When the removable battery is installed on the electronic cigarette, the positioning portions and guide portions are connected to the electronic cigarette first and then last.

5. A removable battery for electronic cigarettes with a protective structure according to claim 2, characterized in that: The connection unit includes an FPC and a BTB connector. The first end of the FPC is electrically connected to the circuit board, and the end of the FPC passes through the end cap from the inside to the outside, exposing the end of the FPC. The BTB connector is installed at the end of the BTB connector and is electrically connected to the FPC connector.

6. The removable battery for an electronic cigarette with a protective structure according to claim 5, characterized in that: The end cap is provided with a mounting groove corresponding to the BTB connector, and the BTB connector is installed in the mounting groove.

7. A removable battery for electronic cigarettes with a protective structure according to claim 6, characterized in that: The end cap is also provided with a connecting part on its end face, the connecting part extending along the direction of the battery body; the connecting part is also provided with a connecting groove, the connecting groove being located at the bottom of the connecting part.

8. A removable battery for electronic cigarettes with a protective structure according to claim 5, characterized in that: The end of the FPC connector passes through the end cap and extends along the extension direction of the battery body.

9. A removable battery for electronic cigarettes with a protective structure according to claim 5, characterized in that: The end cap is also provided with a clearance groove that is adapted to the electrode tab, and the clearance groove extends laterally through both sides of the end cap.

10. A removable battery for electronic cigarettes with a protective structure according to claim 1, characterized in that: The housing is made of steel alloy or aluminum alloy, and the thickness of the housing is greater than or equal to 0.1 mm.

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