Lithium battery convenient to combine and assemble

Abstract

The utility model relates to the technical field of combination and assembly of lithium batteries, and discloses a lithium battery convenient to combine and assemble, which comprises an upper shell and a lower shell, a lithium battery cell is arranged between the upper shell and the lower shell, an anode hardware sheet is mounted at the end part of the upper shell, an upper annular clamping groove is formed in the outer wall of the upper shell, and a lower annular clamping groove is formed in the lower wall of the upper shell. A through hole is formed in the bottom end of the lower shell, a lower annular clamping groove is formed in the outer wall of the lower shell, a connecting piece is arranged on one side of the upper shell, hoops are installed at the two ends of the connecting piece, and a pull piece is installed on the side, away from the upper shell, of the connecting piece. When the lithium battery is assembled, the lithium battery cell is inserted into the lower shell, then the upper shell and the lower shell are inserted, and then the hoops at the two ends of the connecting piece are inserted into the upper annular clamping grooves and the lower annular clamping grooves in the upper shell and the lower shell correspondingly, so that the upper shell and the lower shell are fixed.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery assembly technology, specifically to a lithium battery that is easy to assemble. Background Technology

[0002] AA batteries are widely used in many small appliances and digital products because of their small size and moderate capacity. Currently, AA batteries sold on the market include lithium rechargeable batteries.

[0003] Common lithium batteries are typically assembled by dividing the steel casing into upper and lower parts, which are then joined using either threaded connections or snap-fit ​​mechanisms. However, with threaded connections, the connection is prone to loosening or stripping after assembly, creating gaps between the casings and causing the electrode connections to loosen. Snap-fit ​​connections, on the other hand, are difficult to disengage after engagement, and forceful disassembly may cause the snap-fit ​​to break, rendering the casing unusable. Therefore, those skilled in the art have provided a lithium battery that facilitates assembly and assembly to address the problems mentioned in the background section. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a lithium battery that is easy to assemble. This solves the problem that common lithium batteries are assembled by dividing the steel casing into upper and lower parts and splicing them together using threaded connections or protrusion snap-fit ​​methods. However, with threaded connections, the connection between the two casings is prone to loosening or stripping after connection, resulting in gaps between the casings and loosening of the electrode connections. The protrusion connection method is not easy to disengage after snap-fit, and the protrusion may break under violent disassembly, rendering the casing unusable.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery that is easy to assemble, comprising an upper shell and a lower shell, both of which are steel shells. A lithium battery cell is disposed between the upper shell and the lower shell. A positive electrode metal sheet is installed at the end of the upper shell. An upper annular groove is formed on the outer wall of the upper shell. A through hole is formed at the bottom of the lower shell. A lower annular groove is formed on the outer wall of the lower shell. A connecting piece is provided on one side of the upper shell. Clamps are installed at both ends of the connecting piece. A pull tab is installed on the side of the connecting piece away from the upper shell.

[0008] Preferably, the upper outer shell and the lower outer shell are slidably inserted together, and the clamps at both ends of the connecting piece are engaged with the corresponding upper annular grooves and lower annular grooves. By inserting the clamps at both ends of the connecting piece into the corresponding upper annular grooves and lower annular grooves on the upper and lower outer shells, the upper and lower outer shells are fixed together, thus forming a solid battery casing. When disassembling and assembling the battery cell, the connecting piece can be pulled out by the pull tab, causing the clamps at both ends of the connecting piece to disengage from the upper and lower outer shells, and finally completing the separation of the upper and lower outer shells.

[0009] Preferably, a circuit protection board is installed at the end of the lithium battery cell facing the upper outer casing, a negative electrode is installed on the circuit protection board, a positive electrode is installed on one side of the negative electrode, and a charging socket is provided on one side of the positive electrode, and the charging socket can adopt a TYPE-C, USB or other socket interface.

[0010] Preferably, a negative electrode metal sheet is sleeved on the negative electrode, and the end of the negative electrode metal sheet away from the negative electrode is provided with the bottom of the lithium battery cell. The end of the negative electrode metal sheet at the bottom of the lithium battery cell is in pressure contact with the through hole.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a lithium battery that is easy to assemble and has the following advantages:

[0013] Through its design, this lithium battery, during assembly, involves inserting the lithium battery cell into the lower casing, then connecting the upper and lower casings. The clamps at both ends of the connecting piece are then inserted into the corresponding upper and lower annular grooves on the upper and lower casings, thus securing the upper and lower casings and forming a robust battery housing. A pull tab is provided on the outside of the connecting piece, with one end protruding. When disassembling or assembling the battery cell, the connecting piece can be pulled out using the pull tab, disengaging the clamps at both ends of the connecting piece from the upper and lower casings, ultimately allowing for the separation of the upper and lower casings. This structure allows for quick and easy assembly and disassembly of the upper and lower casings, eliminating the difficulties or gaps associated with traditional snap-fit ​​or threaded connections. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a lithium battery that is easy to assemble, according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the through-hole structure in a lithium battery that facilitates assembly, provided by an embodiment of this application.

[0016] Figure 3 This is an exploded view of the structure of a lithium battery that is easy to assemble, according to an embodiment of this application.

[0017] Figure 4 This is a schematic diagram of the structure of a charging socket in a lithium battery that is easy to assemble, according to an embodiment of this application.

[0018] In the diagram: 1. Upper outer shell; 101. Upper annular slot; 102. Positive electrode metal sheet; 2. Lower outer shell; 201. Lower annular slot; 202. Through hole; 3. Connecting piece; 301. Pull piece; 302. Clamp; 4. Lithium battery cell; 5. Circuit protection board; 6. Negative electrode; 7. Positive electrode; 8. Charging socket; 9. Negative electrode metal sheet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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.

[0020] This utility model provides a technical solution: a lithium battery that is easy to assemble. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 The device includes an upper outer shell 1 and a lower outer shell 2, both of which are steel shells. A lithium battery cell 4 is disposed between the upper outer shell 1 and the lower outer shell 2. A positive electrode metal sheet 102 is installed at the end of the upper outer shell 1. An upper annular groove 101 is formed on the outer wall of the upper outer shell 1. A through hole 202 is formed at the bottom of the lower outer shell 2. A lower annular groove 201 is formed on the outer wall of the lower outer shell 2. A connecting piece 3 is provided on one side of the upper outer shell 1. Clamps 302 are installed at both ends of the connecting piece 3. A pull tab 301 is installed on the side of the upper outer shell 1 away from the connecting piece 3. The upper outer shell 1 and the lower outer shell 2 are slidably inserted together. The clamps 302 at both ends of the connecting piece 3 are engaged with the corresponding upper annular groove 101 and lower annular groove 201. The clamps 302 at both ends of the connecting piece 3 are inserted into the upper annular groove 101 and lower annular groove 201 on the corresponding upper outer shell 1 and lower outer shell 2, thereby fixing the upper outer shell 1 and lower outer shell 2. This makes the upper outer shell 1 and lower outer shell 2 form a solid battery casing. When disassembling and assembling the battery cell, the connecting piece 3 can be pulled out by the pull tab 301, so that the clamps 302 at both ends of the connecting piece 3 are disengaged from the upper outer shell 1 and lower outer shell 2, and finally the upper outer shell 1 and lower outer shell 2 can be separated.

[0021] Please see Figure 3 , Figure 4 A circuit protection board 5 is installed on one end of the lithium battery cell 4 facing the upper outer casing 1. A negative electrode 6 is installed on the circuit protection board 5. A positive electrode 7 is installed on one side of the negative electrode 6. A charging socket 8 is provided on one side of the positive electrode 7. The charging socket 8 can adopt a socket interface such as TYPE-C or USB. A negative electrode metal sheet 9 is sleeved on the negative electrode 6. The end of the negative electrode metal sheet 9 away from the negative electrode 6 is located at the bottom of the lithium battery cell 4. The end of the negative electrode metal sheet 9 at the bottom of the lithium battery cell 4 is in contact with the through hole 202.

[0022] This utility model discloses a lithium battery that is easy to assemble, consisting of an upper outer shell 1, a lower outer shell 2, a lithium battery cell 4, and a connecting piece 3. An insertion step is provided between the upper outer shell 1 and the lower outer shell 2 for quick insertion. The lithium battery cell 4 is located between the upper outer shell 1 and the lower outer shell 2. A circuit protection board 5 is installed on the end of the lithium battery cell 4 facing the upper outer shell 1. A negative electrode 6, a positive electrode 7, and a charging socket 8 are installed on the circuit protection board 5. The charging socket 8 can use a TYPE-C, USB, or other socket interface. A negative electrode 6 metal piece is connected to the negative electrode 6. The other end of the negative electrode 6 metal piece is located at the bottom of the lithium battery cell 4. A through hole 202 is opened at the bottom of the lower outer shell 2 to display the end of the negative electrode metal piece 9 away from the negative electrode 6. A positive electrode metal piece 102 is installed at the top of the upper outer shell 1 and is in contact with the positive electrode 7.

[0023] In this device, the lithium battery cell 4 is manufactured using a soft-pack cell manufacturing process and assembled into the upper shell 1 and lower shell 2 with a diameter of 14mm, forming a 1.5V rechargeable AA battery. The upper shell 1 and lower shell 2 are made of steel.

[0024] During assembly, the lithium battery cell 4 is inserted into the lower outer shell 2, and then the upper outer shell 1 is inserted into the lower outer shell 2. The charging socket 8 positions the upper outer shell 1 and the lower outer shell 2 during insertion, ensuring that the side with the groove step of the upper outer shell 1 is aligned when inserted into the lower outer shell 2. Then, the clamps 302 at both ends of the connecting piece 3 are inserted into the upper annular groove 101 and the lower annular groove 201 on the corresponding upper outer shell 1 and lower outer shell 2, thereby fixing the upper outer shell 1 and the lower outer shell 2. This forms a solid battery casing. A pull tab 301 is provided on the outside of the connecting piece 3, and one end of the pull tab 301 is raised. When disassembling or assembling the battery cell, the connecting piece 3 can be pulled out through the pull tab 301, so that the clamps 302 at both ends of the connecting piece 3 are released from the clamps on the upper outer shell 1 and the lower outer shell 2, and finally the upper outer shell 1 and the lower outer shell 2 are separated.

[0025] In the above structure, the upper outer shell 1 and the lower outer shell 2 are quick and easy to assemble, and equally quick and easy to disassemble. Compared with traditional snap-fit ​​connections and threaded connections, there are no difficulties in assembly or disassembly. It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery that is easy to assemble, comprising an upper casing and a lower casing, wherein a lithium battery cell is disposed between the upper casing and the lower casing, characterized in that: A positive electrode metal sheet is installed at the end of the upper shell. An upper annular groove is opened on the outer wall of the upper shell. A through hole is opened at the bottom of the lower shell. A lower annular groove is opened on the outer wall of the lower shell. A connecting piece is provided on one side of the upper shell. Clamps are installed at both ends of the connecting piece. A pull tab is installed on the side of the upper shell away from the connecting piece.

2. The lithium battery according to claim 1, characterized in that: A circuit protection board is installed on one end of the lithium battery cell facing the upper outer casing. A negative electrode is installed on the circuit protection board, and a positive electrode is installed on one side of the negative electrode. A charging socket is provided on one side of the positive electrode.

3. A lithium battery that is easy to assemble according to claim 2, characterized in that: A negative electrode metal sheet is sleeved on the negative electrode, and the bottom of the lithium battery cell is located at the end of the negative electrode metal sheet away from the negative electrode.

4. A lithium battery that is easy to assemble according to claim 3, characterized in that: The negative electrode metal sheet is in pressure contact with the through hole at one end of the bottom of the lithium battery cell.

5. A lithium battery that is easy to assemble according to claim 1, characterized in that: The upper outer shell and the lower outer shell are slidably connected.

6. A lithium battery that is easy to assemble according to claim 1, characterized in that: The clamps at both ends of the connecting piece are engaged with the corresponding upper and lower annular grooves.

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