A detachable battery for an electronic cigarette

Abstract

This utility model discloses a detachable battery for electronic cigarettes, including a battery body with a connecting end cap at its front end. The battery body includes a pouch cell and a protective shell, with the protective shell covering at least the pouch cell. The battery body also includes a rear end cap, which is installed at the rear end of the battery body and forms a closed protective cavity with the connecting end cap and the protective shell, completely enclosing the pouch cell within the protective cavity. The pouch cell has a tab at the end facing the connecting end cap, and an overload protection unit is provided between the tab and the connecting end cap. The overload protection unit is electrically connected to both the tab and the connecting end cap. This utility model, on the one hand, allows for detachable installation in electronic cigarettes, facilitating replacement when the battery fails or its storage capacity decreases; on the other hand, the protective shell protects the pouch cell from damage by sharp objects or tools during installation and removal.

Description

Technical Field

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

[0002] Electronic cigarettes are electronic devices used to simulate smoking. With their lightweight design, diverse flavors (such as fruit and desserts), and futuristic aesthetics, they have quickly become a trend symbol among young consumers. Current electronic cigarettes mainly consist of a battery, an atomizer, and a cartridge. Most existing electronic cigarette batteries are only coated with high-temperature adhesive to prevent short circuits, thus requiring the battery to be fixed inside the e-cigarette's casing for protection. However, this structure has certain drawbacks. For example, after prolonged use, the battery's storage capacity decreases. Replacing the battery is difficult, and during this process, the aluminum-plastic film can be scratched or the battery itself can be penetrated by sharp objects or tools.

[0003] In the prior art, such as patent document CN212661072U, an electronic cigarette battery is disclosed, including a cartridge part and a battery rod part. The battery rod part includes a microphone (control switch) and a battery cell, with the microphone welded to the battery cell. This electronic cigarette battery improves the reliability of the battery connection through welding, but it results in the battery being non-removable, making it difficult to install and remove when the battery fails and needs replacement. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model proposes a removable battery for electronic cigarettes. On the one hand, it is installed on the electronic cigarette through a detachable connection, making it easy to install and remove when the battery fails or its storage capacity decreases and needs to be replaced. On the other hand, the protective shell protects the soft-pack battery cell, preventing it from being easily damaged by sharp objects or tools during installation and removal.

[0005] This invention is implemented as follows: A removable battery for electronic cigarettes includes a battery body. The battery body has a connecting end cap at its front end, which is electrically connected to the electronic cigarette. The connecting end cap has a power supply contact for powering the battery, and the electronic cigarette has a power supply contact corresponding to the power supply contact. When the removable battery is installed on the electronic cigarette, the power supply contact is electrically connected to the power supply contact. By connecting the contacts, the battery of the electronic cigarette is removable. When the battery of the electronic cigarette fails or its storage capacity decreases and needs to be replaced, it can be quickly installed and removed, improving the convenience of replacing the battery of the electronic cigarette.

[0006] The battery body includes a pouch cell and a protective shell corresponding to the pouch cell. The protective shell covers at least the pouch cell, with its inner wall fitting against the side wall of the pouch cell. The battery body also includes a rear end cap, which is installed at the end of the battery body and forms a closed protective cavity with the connecting end cap and the protective shell, completely enclosing the pouch cell within the protective cavity. The protective shell protects the pouch cell from being scratched by sharp objects or tools or penetrated by the cell body during assembly or disassembly, thus improving the safety of the pouch cell.

[0007] The pouch cell has a tab at one end facing the connecting end cover. An overload protection unit is also provided between the tab and the connecting end cover, and the overload protection unit is electrically connected to both the tab and the connecting end cover. The overload protection unit is used to limit the maximum current flowing through the pouch cell, prevent the pouch cell from being overloaded, and reduce the risk of damage to the pouch cell.

[0008] Preferably, the connecting end cap includes a blade-type connector, which comprises multiple sequentially arranged blades forming a locking groove between adjacent blades. Each blade has a protruding locking portion on its side facing the locking groove. When the removable battery is installed in the electronic cigarette, the blades are electrically connected to the electronic cigarette, and the locking portion engages with the electronic cigarette. Compared to direct wire bonding, the blade-type connector eliminates the need for secondary soldering, making installation and disassembly simpler and faster, thus improving the convenience of subsequent maintenance. Furthermore, the blade-type connection is tight and can withstand a certain amount of impact, further enhancing the reliability of the connection.

[0009] Specifically, the connecting end cap also includes symmetrically arranged positioning grooves on both sides of the blade-type connector. When the removable battery is installed on the electronic cigarette, the positioning grooves engage and position with the electronic cigarette. The positioning grooves are used for positioning during battery installation. When the removable battery is installed, the positioning grooves prevent misalignment of the blade-type connector and improve its reliability.

[0010] As an equivalent alternative, the overload protection unit is equipped with a BTB connector (Board-to-Board connector). The outer surface of the connection end cover has a mounting groove adapted to the BTB connector. The BTB connector passes through the side wall of the connection end cover from the inside out and is installed in the mounting groove. By placing the BTB connector on the connection end cover, the space occupied by the BTB connector within the protective housing is reduced. This allows the protective housing to accommodate larger pouch cells without changing its overall volume, thus increasing the battery's energy storage capacity and range.

[0011] Specifically, the connecting end cap has a connecting portion, and the bottom of the connecting portion has a connecting groove. When the removable battery is installed in the electronic cigarette, the connecting groove engages with the electronic cigarette. The connecting groove ensures the battery is securely installed in the electronic cigarette, preventing accidental dislodgement and improving battery reliability.

[0012] As an equivalent alternative, the overload protection unit includes a BTB connector and a circuit board. The circuit board extends from the inside out through the connection end cover and along the extension direction of the battery body. The BTB connector is located at the end of the circuit board. By placing the BTB connector outside the connection end cover via the circuit board, the space occupied by the BTB connector within the protective housing is reduced. This allows the protective housing to accommodate larger pouch cells while maintaining its original size, increasing the battery's capacity and range. Furthermore, the outward-extending BTB connector facilitates observation of the connection during connection and makes mating easier, further improving the convenience of battery connection.

[0013] Specifically, the circuit board is an FPC (flexible printed circuit board). FPCs have a certain degree of deformation capability, allowing the battery to adapt during installation, thereby reducing the precision requirements during battery assembly and improving assembly convenience.

[0014] Preferably, the battery body further includes a covering layer surrounding the outer periphery of the protective shell. This covering layer is made of composite paper and is decorated with decorative patterns or displays battery information. Decorating the covering layer with decorative patterns or displaying battery information enhances the battery's aesthetics and facilitates differentiation between different battery models, thus improving its recognizability.

[0015] Preferably, the protective shell is made of steel alloy or aluminum alloy. Steel alloy and aluminum alloy can simultaneously take into account the characteristics of high strength and lightweight, which can reduce the weight of the protective shell while ensuring protective strength, making the e-cigarette more convenient to carry and improving the convenience of the e-cigarette.

[0016] Specifically, the thickness of the protective shell is greater than or equal to 0.1 mm.

[0017] The beneficial effects of this utility model are:

[0018] This utility model proposes a removable battery for electronic cigarettes. On the one hand, it is installed on the electronic cigarette through a detachable connection, making it easy to install and remove when the battery fails or its storage capacity decreases and needs to be replaced. On the other hand, the protective shell protects the soft-pack battery cell, preventing the soft-pack battery cell from being scratched by sharp objects or tools or penetrated by the aluminum-plastic film or the battery cell body during installation and removal, thus improving the safety of the soft-pack battery cell. Attached Figure Description

[0019] Figure 1 This is an exploded view of Embodiment 1 of the removable battery of this utility model;

[0020] Figure 2 This is an exploded schematic diagram of the battery body of Embodiment 1 of the detachable battery of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection end cap of Embodiment 1 of the detachable battery of this utility model;

[0022] Figure 4 The blade-type connector is an embodiment 1 of the removable battery of this utility model;

[0023] Figure 5 This is an exploded view of Embodiment 2 of the removable battery of this utility model;

[0024] Figure 6 This is a schematic diagram of the overload protection unit of Embodiment 2 of the removable battery of this utility model;

[0025] Figure 7 This is a schematic diagram of the connection end cap of Embodiment 2 of the detachable battery of this utility model;

[0026] Figure 8 Another schematic diagram of the connection end cap of Embodiment 2 of the detachable battery of this utility model;

[0027] Figure 9 This is an exploded view of Embodiment 3 of the removable battery of this utility model;

[0028] Figure 10 This is a schematic diagram of the overload protection unit of Embodiment 3 of the removable battery of this utility model.

[0029] Figure label:

[0030] 1. Battery body; 2. Connecting end cap; 3. Overload protection unit; 11. Soft-pack cell; 12. Protective shell; 13. Rear end cap; 14. Covering layer; 21. Blade-type connector; 22. Positioning groove; 23. Mounting groove; 24. Connecting part; 31. BTB connector; 32. Circuit board; 111. Electrode; 211. Blade; 212. Snap-fit ​​part; 241. Connecting groove. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] like Figures 1-4 As shown, a removable battery for an electronic cigarette includes a battery body 1. The battery body 1 has a connecting end cap 2 at its front end, which is electrically connected to the electronic cigarette. The connecting end cap 2 has a power supply contact for powering the battery, and the electronic cigarette has a power supply contact corresponding to the power supply contact. When the removable battery is installed on the electronic cigarette, the power supply contact is electrically connected to the power supply contact. By connecting the contacts, the battery of the electronic cigarette is removable. When the battery of the electronic cigarette fails or its storage capacity decreases and needs to be replaced, it can be quickly installed and removed, improving the convenience of replacing the battery of the electronic cigarette.

[0034] The battery body 1 includes a pouch cell 11 and a protective shell 12 corresponding to the pouch cell 11. The protective shell 12 at least covers the pouch cell 11, so that the inner wall of the protective shell 12 fits against the side wall of the pouch cell 11. The battery body 1 also includes a rear end cover 13, which is installed at the end of the battery body 1 and forms a closed protective cavity with the connecting end cover 2 and the protective shell 12, so that the pouch cell 11 is completely covered in the protective cavity. The protective shell 12 is used to protect the pouch cell 11 and prevent the pouch cell 11 from being scratched by sharp objects or tools or penetrated by the cell body during installation and removal, thereby improving the safety of the pouch cell 11.

[0035] The pouch cell 11 has a tab 111 at one end facing the connecting end cover 2. An overload protection unit 3 is also provided between the tab 111 and the connecting end cover 2. The overload protection unit 3 is electrically connected to both the tab 111 and the connecting end cover 2. The overload protection unit 3 is used to limit the maximum current flowing through the pouch cell 11, prevent the pouch cell 11 from being overloaded, and reduce the risk of damage to the pouch cell 11.

[0036] In this embodiment, the overload protection unit 3 is a battery protection chip with integrated MOSFET (metal-oxide-semiconductor transistor), specifically model OMS221D-FE.

[0037] In this embodiment, the connecting end cap 2 includes a blade-type connector 21, which comprises a plurality of sequentially arranged blades 211. Adjacent blades 211 form a snap-fit ​​groove, and each blade 211 has a protruding snap-fit ​​portion 212 on its side facing the snap-fit ​​groove. When the removable battery is installed on the electronic cigarette, the blades 211 are electrically connected to the electronic cigarette, and the snap-fit ​​portion 212 snaps into the electronic cigarette. Compared with direct wire bonding, the blade-type connector 21 eliminates the need for secondary soldering, making installation and disassembly simpler and faster, and improving the convenience of subsequent maintenance. Furthermore, the blade-type connection is tight and can withstand a certain amount of impact, further improving the reliability of the connection.

[0038] Specifically, the connecting end cap 2 also includes positioning grooves 22 symmetrically arranged on both sides of the blade-type connector 21. When the removable battery is installed on the electronic cigarette, the positioning grooves 22 engage and position with the electronic cigarette. The positioning grooves 22 are used for positioning during battery installation. When the removable battery is installed, positioning is achieved through the positioning grooves 22, preventing misalignment of the blade-type connector 21 and improving the reliability of the blade-type connector 21.

[0039] In this embodiment, the battery body 1 further includes a covering layer 14 that covers the outer periphery of the protective shell 12. The covering layer 14 is made of composite paper and decorated with a decorative pattern. Decorative patterns on the covering layer 14 enhance the battery's aesthetics.

[0040] In this embodiment, the protective shell 12 is made of steel alloy, which combines high strength and lightweight characteristics. It can reduce the weight of the protective shell 12 while ensuring protective strength, making the e-cigarette more convenient to carry and improving the convenience of the e-cigarette.

[0041] Specifically, the thickness of the protective shell 12 is 0.1 mm.

[0042] Example 2

[0043] like Figures 5-8 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:

[0044] In this embodiment, the overload protection unit 3 is equipped with a BTB connector 31. The outer surface of the connection end cover 2 has a mounting groove 23 adapted to the BTB connector 31. The BTB connector 31 passes through the side wall of the connection end cover 2 from the inside out and is installed in the mounting groove 23. By placing the BTB connector 31 on the connection end cover 2, the space occupied by the BTB connector 31 within the protective shell 12 is reduced. This allows the protective shell 12 to accommodate a larger soft-pack battery cell 11 without changing its volume, thereby increasing the battery's energy storage capacity and range.

[0045] Specifically, the connecting end cap 2 is provided with a connecting part 24, and the bottom of the connecting part 24 is provided with a connecting groove 241. When the removable battery is installed on the electronic cigarette, the connecting groove 241 engages with the electronic cigarette. The connecting groove 241 ensures the stability of the battery installation on the electronic cigarette, prevents the battery from accidentally falling off, and improves the reliability of the battery.

[0046] Example 3

[0047] like Figures 9-10 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:

[0048] In this embodiment, the overload protection unit 3 includes a BTB connector 31 and a circuit board 32. The circuit board 32 extends outward from the connection end cover 2 and along the extension direction of the battery body 1. The BTB connector 31 is located at the end of the circuit board 32. By placing the BTB connector 31 outside the connection end cover 2 via the circuit board 32, the space occupied by the BTB connector 31 within the protective shell 12 is reduced. This allows the protective shell 12 to accommodate a larger soft-pack battery cell 11 without changing its volume, thereby increasing the battery's energy storage capacity and range. Furthermore, the outward extension of the BTB connector 31 facilitates observation of the connection during connection, making it easier to assemble and further improving the convenience of battery connection.

[0049] Specifically, the circuit board 32 is an FPC (flexible printed circuit board). The FPC has a certain deformation capability, which enables the battery to have an adaptive effect during installation, thereby reducing the precision requirements during battery assembly and improving assembly convenience.

[0050] Example 4

[0051] This is one embodiment of the present invention. The main technical solution of this embodiment is the same as that of embodiment 2 or 3. Features not explained in this embodiment are explained in embodiment 2 or 3, and will not be repeated here. The difference between this embodiment and embodiment 2 or 3 is as follows:

[0052] In this embodiment, the overload protection unit 3 is equipped with a BTB connector 31. 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 31 in the protective shell 12, allowing the protective shell 12 to accommodate a larger soft-pack battery cell 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.

[0053] Specifically, the battery compartment of the electronic cigarette also has an output FPC, which is electrically connected to the BTB connector 31 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.

[0054] 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, comprising a battery body, wherein a connecting end cap is provided at the first end of the battery body, the connecting end cap being electrically connected to an electronic cigarette, characterized in that: The battery body includes a pouch cell and a protective shell corresponding to the pouch cell. The protective shell covers at least the pouch cell, with the inner wall of the protective shell fitting against the side wall of the pouch cell. The battery body also includes a rear end cap, which is installed at the end of the battery body and forms a closed protective cavity with the connecting end cap and the protective shell, so that the pouch cell is completely covered within the protective cavity. The soft-pack battery cell has a tab at one end facing the connecting end cover. An overload protection unit is also provided between the tab and the connecting end cover. The overload protection unit is electrically connected to both the tab and the connecting end cover.

2. The removable battery for electronic cigarettes according to claim 1, characterized in that: The connecting end cap includes a blade-type connector, which includes multiple blades arranged in sequence, with adjacent blades forming a snap-fit ​​groove. The blades have a protruding snap-fit ​​portion on the side facing the snap-fit ​​groove. When the removable battery is installed on the electronic cigarette, the blades are electrically connected to the electronic cigarette, and the snap-fit ​​portion snaps into the electronic cigarette.

3. A removable battery for electronic cigarettes according to claim 2, characterized in that: The connecting end cap also includes positioning grooves symmetrically arranged on both sides of the blade-type connector. When the removable battery is installed on the electronic cigarette, the positioning grooves are engaged and positioned with the electronic cigarette.

4. A removable battery for electronic cigarettes according to claim 1, characterized in that: The overload protection unit is equipped with a BTB connector. The outer surface of the connection end cover is provided with a mounting groove that is compatible with the BTB connector. The BTB connector passes through the side wall of the connection end cover from the inside to the outside and is installed in the mounting groove.

5. A removable battery for electronic cigarettes according to claim 4, characterized in that: The connecting end cap is provided with a connecting part, and the bottom of the connecting part is provided with a connecting groove. When the removable battery is installed on the electronic cigarette, the connecting groove is engaged with the electronic cigarette.

6. A removable battery for electronic cigarettes according to claim 1, characterized in that: The overload protection unit is provided with a BTB connector and a circuit board. The circuit board extends out of the connection end cover from the inside and extends along the extension direction of the battery body. The BTB connector is located at the end of the circuit board.

7. A removable battery for electronic cigarettes according to claim 6, characterized in that: The circuit board is an FPC.

8. A removable battery for electronic cigarettes according to claim 1, characterized in that: The battery body also includes a covering layer that covers the outer periphery of the protective shell. The covering layer is made of composite paper and is decorated with patterns or displays battery information.

9. A removable battery for electronic cigarettes according to claim 1, characterized in that: The protective shell is made of steel alloy or aluminum alloy.

10. A removable battery for electronic cigarettes according to claim 9, characterized in that: The thickness of the protective shell is greater than or equal to 0.1 mm.

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