Lithium battery with detachable shell

Abstract

The present application relates to the field of battery technology, and in particular to a lithium battery with a detachable shell. It includes a battery cell, a shell, an outer cover and a sheath, wherein the battery cell is placed in the shell, and a mutually interlocking connection structure is formed on the outer cover and the shell, and the sheath is sleeved on the outer periphery of the shell and the outer cover. By placing the soft-pack battery cell in the shell, and forming a mutually interlocking connection structure on the outer cover and the shell, and then snapping the outer cover to the shell, the battery cell is fixed in the shell, thereby improving the protection strength of the soft-pack battery cell, improving the external force bearing capacity, and avoiding the problem of easy damage to the battery cell when installed in an electronic device, and then sleeved on the outer periphery of the shell and the outer cover after the snap connection, the internal battery cell is further protected, and the outer cover and the shell are detachably connected through the mutually interlocking connection structure, thereby facilitating the removal and replacement of the battery cell.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a lithium battery with a detachable shell. Background Art

[0002] At present, the shell of soft-pack battery is mainly aluminum-plastic film, which is thin and does not provide enough protection for the battery and cannot withstand external forces. In particular, when soft-pack batteries are used in electronic cigarettes, they need to be replaced frequently. Since soft-pack batteries are relatively soft, they are easily damaged when installed in electronic cigarettes, causing corrosion and damage to the inside of the electronic cigarette. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides a lithium battery with a detachable shell, comprising a battery cell, a shell, an outer cover and a sheath, the battery cell is placed in the shell, the outer cover and the shell are formed with a mutually interlocking connection structure, and the sheath is sleeved on the outer periphery of the shell and the outer cover.

[0004] Preferably, a receiving groove for placing the battery cell is formed on one side of the shell, and the outer cover is buckled on the shell to fix the battery cell in the receiving groove.

[0005] Preferably, the housing is provided with card slots at the top and bottom of the accommodating groove, and card platforms which are buckled in the card slots are provided at the top and bottom of the outer cover.

[0006] Preferably, abutment blocks abutting against the side surfaces of the battery cells are arranged on the side surfaces of the outer cover facing the outer shell.

[0007] Preferably, it also includes a circuit board, on which a first connecting plate and a second connecting plate are arranged, a positive electrode and a negative electrode are formed on the top of the battery cell, and the positive electrode and the negative electrode are electrically connected to the first connecting plate and the second connecting plate respectively through the circuit board.

[0008] Preferably, a clearance groove for evacuating the first connecting piece and the second connecting piece is provided on the top of the shell.

[0009] Preferably, the second connecting piece is symmetrically arranged on both sides of the first connecting piece.

[0010] Preferably, a positioning block is provided on the inner side surface of the housing located at the accommodating groove, and the positioning block is supported on the bottom of the circuit board.

[0011] Preferably, a protective sheet is provided between the battery core and the housing, and between the battery core and the outer cover.

[0012] From the above, it can be seen that the application provided by the present application can obtain the following beneficial effects: by placing the soft-pack battery cell in the shell, a mutually interlocking connection structure is formed on the outer cover and the shell, and then the outer cover is buckled with the shell, so that the battery cell is fixed in the shell, thereby improving the protection strength of the soft-pack battery cell, improving the ability to withstand external forces, and avoiding the problem of easy damage to the battery cell when installed in electronic equipment. Then, the protective sheath is arranged on the outer periphery of the shell and the outer cover after the buckling connection, so as to further protect the internal battery cell, and the outer cover and the shell are detachably connected through the mutually interlocking connection structure, so as to facilitate the disassembly and replacement of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the description of the embodiments of the present application or the prior art are briefly introduced below. Obviously, the drawings described below are only part of the embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0014] Figure 1 This is an exploded view of a lithium battery with a detachable shell according to an embodiment of the present application;

[0015] Figure 2 This is a partial enlarged view of the battery cell of the embodiment of the present application;

[0016] Figure 3 This is a schematic diagram of the structure of the housing and outer cover of an embodiment of the present application;

[0017] Figure 4 This is a schematic diagram of the structure of the housing and outer cover of an embodiment of the present application;

[0018] Figure 5 This is a schematic diagram of the shell structure of an embodiment of the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Example

[0021] In order to solve the above technical problems, this embodiment provides a lithium battery with a detachable shell, such as Figure 1As shown, it includes a battery cell 10, a shell 20, an outer cover 30 and a sheath 40. The soft-pack battery cell 10 is placed in the shell 20, and a mutually buckled connection structure is formed on the outer cover 30 and the shell 20. Then, the outer cover 30 is buckled with the shell 20, so that the battery cell 10 is fixed in the shell 20, thereby improving the protection strength of the soft-pack battery cell 10, improving the external force bearing capacity, and avoiding the problem of easy damage of the battery cell when installed in an electronic device. Then, the sheath 40 is sleeved on the outer periphery of the shell 20 and the outer cover 30 after the buckling connection, so as to further protect the internal battery cell. The outer cover 30 and the shell 20 are detachably connected through the mutually buckled connection structure, so as to facilitate the disassembly and replacement of the battery cell.

[0022] Specifically, a receiving groove for placing the battery cell 10 is provided on one side of the shell 20. After the battery cell 10 is placed in the receiving groove, the outer cover 30 is snapped onto the side of the shell 20, thereby fixing the battery cell 10 in the receiving groove. When an electronic device such as an electronic cigarette is installed, the shell 20 and the outer cover 30 protect the battery cell to prevent the problem of the soft-pack battery cell being easily damaged during the installation process. The shell 20 and the outer cover 30 are made of PVC material, so they can be used in electronic cigarettes.

[0023] Furthermore, in order to realize the detachable connection between the outer cover 30 and the housing 20, as Figure 3-4 As shown, a card slot 21 is provided at the top and bottom of the housing 20 at the receiving groove, and a card stand 31 buckled in the card slot 21 is provided at the top and bottom of the outer cover 30. When the outer cover 30 covers the receiving groove on the side of the housing 20, the card stand 31 buckles in the card slot 21, so that the outer cover 30 and the housing 20 are fixedly connected to each other, so that the battery cell 1 is fixed in the receiving groove, and the card slot 21 and the card stand 31 constitute the above-mentioned connection structure.

[0024] In order to further fix the battery cell 10 in the receiving groove of the housing 20, abutment blocks 32 are provided on the side of the outer cover 30 facing the housing 20 to abut against the side of the battery cell 10. After the battery cell 10 is placed in the receiving groove, when the outer cover 30 covers the receiving groove on the side of the housing 20, the abutment blocks 32 abut against the side of the battery cell 10, thereby fixing the battery cell 10 in the receiving groove and preventing the battery cell 10 from shaking inside the housing 20 and the outer cover 30.

[0025] Further, such as Figure 2As shown, it also includes a circuit board 50, on which a first connecting piece 61 and a second connecting piece 62 are arranged, and a positive electrode 11 and a negative electrode 12 are formed on the top of the battery cell 10, and the positive electrode 11 and the negative electrode 12 are respectively electrically connected to the first connecting piece 61 and the second connecting piece 62 through the circuit board 50. Among them, the circuit board 50 plays a conductive role, and illustratively, the negative electrode 12 and the first connecting piece 61 are conductive, and the positive electrode 11 and the second connecting piece 62 are conductive, and then the first connecting piece 61 and the second connecting piece 62 are connected to the positive and negative electrodes of the electronic device.

[0026] In order to connect the first connecting piece 61 and the second connecting piece 62 to external electronic devices, a clearance groove 22 for evacuating the first connecting piece 61 and the second connecting piece 62 is provided on the top of the housing 20. When the battery cell 10 is loaded into the housing 20, the first connecting piece 61 and the second connecting piece 62 are placed in the clearance groove 22, so that the first connecting piece 61 and the second connecting piece 62 are exposed on the housing 20, and then the first connecting piece 61 and the second connecting piece 62 are connected to the positive and negative electrodes of the electronic device.

[0027] Further, for the convenience of installation, two second connecting pieces 62 are provided, and the second connecting pieces 62 are symmetrically arranged on both sides of the first connecting piece 61. Exemplarily, the first connecting piece 61 is the negative electrode 12, and the second connecting piece 62 is the positive electrode 11. The shape of the air-avoiding groove 22 matches the first connecting piece 61 and the second connecting piece 62. By symmetrically arranging the second connecting piece 62 on both sides of the first connecting piece 61, it plays a fool-proof role when the battery cell 10 is inserted, and there is no need to consider the installation direction of the battery cell 10, so that the battery cell 10 is conveniently installed in the housing 20.

[0028] The circuit board 50 is connected to the positive electrode 11 and the negative electrode 12 of the battery cell 10 through the electrode sheet 51. There is a gap between the circuit board 50 and the top of the battery cell 10. In order to support the circuit board 50, as shown in FIG. Figure 5 As shown, a positioning block 23 is provided on the inner side of the housing 20 located in the receiving groove. When the battery cell 10 is loaded into the receiving groove, the positioning block 23 is embedded between the circuit board 50 and the battery cell, and then supported on the bottom of the circuit board 50 by the positioning block 23.

[0029] Since a groove 22 for accommodating the first connecting piece 61 and the second connecting piece 62 is provided at the top of the shell 20, during installation, it is necessary to first insert one end of the battery cell 10 provided with the first connecting piece 61 and the second connecting piece 62 into the groove 22, and then buckle the bottom of the battery cell 10 into the bottom of the shell. To facilitate installation, in some embodiments, the bottom of the shell 20 is designed as a spring, and the spring is connected to the bottom of the shell 20 by structures such as a retaining spring. When the battery cell 10 is installed in the accommodating groove of the shell 20, the spring can be tilted outward and opened to install the battery cell 10 in the accommodating groove of the shell 20, and then the elastic force of the spring is used to reset the battery cell to the bottom of the battery cell, so that the battery cell is fixed in the accommodating groove of the shell, and then the outer cover 30 is covered on the shell 20. Alternatively, a guiding slope may be designed at the rear of the housing 20 , and the bottom of the battery cell 10 may be guided by the slope to slide into the receiving groove of the housing 20 , thereby avoiding collision between the battery cell 10 and the housing 20 , thereby achieving the purpose of convenient installation.

[0030] Further, a protective sheet 70 is provided between the battery cell 10 and the housing 20, and between the battery cell 10 and the outer cover 30. Exemplarily, the protective sheet 70 may be highland barley paper, which plays a protective role on the battery cell 10.

[0031] To summarize, the present application scheme places the soft-pack battery cell in the outer shell, forms a mutually interlocking connection structure on the outer cover and the outer shell, and then the outer cover is buckled to the outer shell to fix the battery cell in the outer shell, thereby improving the protection strength of the soft-pack battery cell, improving the ability to withstand external forces, and avoiding the problem of easy damage to the battery cell when installed in electronic equipment. The protective sheath is then arranged on the outer periphery of the outer shell and the outer cover after the buckling connection, so as to further protect the internal battery cell, and the outer cover and the outer shell are detachably connected through the mutually interlocking connection structure, thereby facilitating the disassembly and replacement of the battery cell.

[0032] The above-described implementation methods do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-described implementation methods shall be included in the protection scope of the technical solution.

Claims

1. A lithium battery with a detachable shell, characterized in that: The invention comprises a battery core (10), a shell (20), an outer cover (30) and a protective sheath (40); the battery core (10) is placed in the shell (20); a mutually buckled connection structure is formed on the outer cover (30) and the shell (20); and the protective sheath (40) is sleeved on the outer circumference of the shell (20) and the outer cover (30).

2. The lithium battery with a detachable shell according to claim 1, characterized in that: A receiving groove for accommodating the battery core (10) is provided on one side of the outer shell (20), and the outer cover (30) is buckled on the outer shell (20) so that the battery core (10) is fixed in the receiving groove.

3. The lithium battery with a detachable shell according to claim 2, characterized in that: The housing (20) is provided with card slots (21) at the top and bottom of the accommodating groove, and card stands (31) that are buckled into the card slots (21) are provided at the top and bottom of the outer cover (30), and the card slots (21) and the card stands (31) constitute the connection structure.

4. The lithium battery with a detachable shell according to claim 1, characterized in that: A supporting block (32) is provided on the side of the outer cover (30) facing the outer shell (20) and is in contact with the side of the battery cell.

5. The lithium battery with a detachable shell according to claim 2, characterized in that: The invention also comprises a circuit board (50), wherein a first connecting piece (61) and a second connecting piece (62) are provided on the circuit board (50), a positive electrode (11) and a negative electrode (12) are formed at one end of the battery cell (10), and the positive electrode (11) and the negative electrode (12) are respectively electrically connected to the first connecting piece (61) and the second connecting piece (62) through the circuit board (50).

6. The lithium battery with a detachable shell according to claim 5, characterized in that: A clearance groove (22) for evacuating the first connecting piece (61) and the second connecting piece (62) is provided on the top of the housing (20).

7. The lithium battery with a detachable shell according to claim 6, characterized in that: The second connecting piece (62) is symmetrically arranged on both sides of the first connecting piece (61).

8. The lithium battery with a detachable shell according to claim 5, characterized in that: A positioning block (23) is provided on the inner side surface of the housing (20) located at the accommodating groove, and the positioning block (23) is supported on the bottom of the circuit board (50).

9. The lithium battery with a detachable shell according to claim 1, characterized in that: A protective sheet (70) is provided between the battery core (10) and the housing (20), and between the battery core (10) and the outer cover (30).

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