A removable lithium battery with BMS

Abstract

The present application relates to the technical field of lithium batteries, and in particular to a detachable lithium battery with a BMS. The battery cell, protection board, and charge and discharge management BMS board are placed in sequence in a steel shell, and a plastic shell is covered at the end of the steel shell. The battery cell, protection board, and charge and discharge management BMS board are fixed in the steel shell through the plastic shell. The charge and discharge management BMS board and the protection board are electrically connected through pins. The charge and discharge management BMS board manages and protects the overcurrent, overvoltage, short circuit and other functions of battery charge and discharge, thereby improving the safety factor and the service life of the lithium battery. A heat shrink sleeve is provided on the outer periphery of the steel shell and the plastic shell, and the heat shrink sleeve is used to strengthen the firmness of the combination of the steel shell and the plastic shell.

Description

Technical Field

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

[0002] At present, for the convenience of use, most electronic cigarettes use removable lithium batteries. Lithium batteries do not have a charging and discharging BMS system. When disassembling and charging, they need to be equipped with a special contact charger, which is very inconvenient. In addition, there is no BMS management during the battery charging and discharging process, which can easily damage the lithium battery and reduce the service life of the lithium battery. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides a detachable lithium battery with BMS, including a steel shell, and a battery cell, a protection board, a charge and discharge management BMS board placed in the steel shell in sequence, and a plastic shell covering the end of the steel shell, the charge and discharge management BMS board and the protection board are electrically connected through a pin, and a heat shrink tube is provided on the outer periphery of the steel shell and the plastic shell.

[0004] Preferably, a TYPE-C charging port is provided at the bottom of the charge and discharge management BMS board.

[0005] Preferably, a positive output plate and a negative output plate are provided on the top of the charge and discharge management BMS board.

[0006] Preferably, the positive electrode output plate is circular, and the negative electrode output plate is annular and surrounds the positive electrode output plate.

[0007] Preferably, the plastic shell and the heat shrink tubing are provided with a space-avoiding groove for exposing the TYPE-C charging port.

[0008] Preferably, an opening for exposing the positive output sheet and the negative output sheet is formed on the top of the plastic shell.

[0009] Preferably, a buckle is formed at the bottom of the plastic shell and is buckled with the end of the steel shell.

[0010] As can be seen from the above, the following beneficial effects can be obtained by applying the present application: The present application solution sequentially places the battery cell, protection board, and charge and discharge management BMS board in the steel shell, and covers the end of the steel shell with a plastic shell, and fixes the battery cell, protection board, and charge and discharge management BMS board in the steel shell through the plastic shell. The charge and discharge management BMS board and the protection board are electrically connected through the pins, and the charge and discharge management BMS board manages and protects the overcurrent, overvoltage, short circuit and other functions of battery charge and discharge, thereby improving the safety factor and the service life of the lithium battery. A heat shrink sleeve is provided on the outer periphery of the steel shell and the plastic shell, and the heat shrink sleeve is used to strengthen the firmness of the combination of the steel shell and the plastic shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 This is an exploded view of a detachable lithium battery with a BMS according to an embodiment of the present application;

[0013] Figure 2 This is a partial schematic diagram of a detachable lithium battery with a BMS according to an embodiment of the present application;

[0014] Figure 3 This is a diagram of a detachable lithium battery assembly with a BMS according to an embodiment of the present application. DETAILED DESCRIPTION

[0015] 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.

[0016] Example

[0017] In order to solve the above technical problems, this embodiment provides a detachable lithium battery with a BMS, such as Figure 1-3 As shown, it includes a steel shell 20, and a battery cell 10, a protection board 30, and a charge and discharge management BMS board 40 placed in the steel shell 20 in sequence. A plastic shell 50 is covered at the end of the steel shell 20. The battery cell 10, the protection board 30, and the charge and discharge management BMS board 40 are fixed in the steel shell 20 through the plastic shell 50. The protection board 30 contacts the end of the battery. The charge and discharge management BMS board 40 and the protection board 30 are electrically connected through the pin 60. The charge and discharge management BMS board 40 manages and protects the overcurrent, overvoltage, short circuit and other functions of battery charge and discharge, thereby improving the safety factor and the service life of the lithium battery. A heat shrink sleeve 70 is provided on the outer periphery of the steel shell 20 and the plastic shell 50, and the heat shrink sleeve 70 is used to strengthen the firmness of the combination of the steel shell 20 and the plastic shell 50.

[0018] Furthermore, a buckle is formed at the bottom of the plastic shell 50 to buckle with the end of the steel shell 20, and then the plastic shell 50 is buckled with the steel shell 20, so that the battery cell 10, the protection board 30 and the charge and discharge management BMS board 40 are fixed in the steel shell 20, and the battery can be detachably connected. A TYPE-C charging port 41 is provided at the bottom of the charge and discharge management BMS board 40. The TYPE-C charging port 41 is used as a battery charging port, and a universal TYPE-C charger is used to facilitate charging.

[0019] Furthermore, the protection board 30 and the charge and discharge management BMS board 40 can be control circuit boards, the protection board 30 is electrically connected to the battery cell 10, the protection board 30 is electrically connected to the charge and discharge management BMS board 40 through the pin 60, and a positive output sheet 42 and a negative output sheet 43 are arranged on the top of the charge and discharge management BMS board 40. The positive output sheet 42 is used for the positive output of the battery, and the negative output sheet 43 is used for the negative output of the battery, wherein the positive output sheet 42 is circular, and the negative output sheet 43 is annular and surrounds the positive output sheet 42. The positive output sheet 42 and the negative output sheet 43 are hardware contact sheets.

[0020] The plastic shell 50 and the heat shrink tube 70 are provided with a clearance groove 51 for exposing the TYPE-C charging port 41 . A universal TYPE-C charger can pass through the clearance groove 51 and connect to the TYPE-C charging port 41 , making the charging operation simple and convenient.

[0021] Furthermore, the top of the plastic shell 50 is provided with an opening to expose the positive output sheet 42 and the negative output sheet 43, so that the positive output sheet 42 and the negative output sheet 43 are in electrical contact with the load. The steel shell 20 protects the battery cell from external damage.

[0022] In summary, the present application solution places the battery cell, protection board, and charge and discharge management BMS board in sequence in the steel shell, and covers the end of the steel shell with a plastic shell, and fixes the battery cell, protection board, and charge and discharge management BMS board in the steel shell through the plastic shell. The charge and discharge management BMS board and the protection board are electrically connected through the pins, and the charge and discharge management BMS board manages and protects the overcurrent, overvoltage, short circuit and other functions of battery charge and discharge, thereby improving the safety factor and the service life of the lithium battery. A heat shrink sleeve is provided on the outer periphery of the steel shell and the plastic shell, and the heat shrink sleeve is used to strengthen the firmness of the combination of the steel shell and the plastic shell.

[0023] The above-mentioned implementation modes 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-mentioned implementation modes shall be included in the protection scope of the technical solution.

Claims

1. A detachable lithium battery with BMS, characterized in that: The invention comprises a steel shell (20), a battery cell (10), a protection plate (30), a charge and discharge management BMS plate (40) which are sequentially placed in the steel shell (20), and a plastic shell (50) which covers the end of the steel shell (20); the charge and discharge management BMS plate (40) and the protection plate (30) are electrically connected via a plug pin (60); and a heat shrinkable sleeve (70) is sleeved on the outer periphery of the steel shell (20) and the plastic shell (50).

2. The detachable lithium battery with BMS according to claim 1, characterized in that: A TYPE-C charging port (41) is provided at the bottom of the charge and discharge management BMS board (40).

3. The detachable lithium battery with BMS according to claim 1, characterized in that: The top of the charge and discharge management BMS board (40) is provided with a positive electrode output sheet (42) and a negative electrode output sheet (43).

4. The detachable lithium battery with BMS according to claim 3, characterized in that: The positive electrode output plate (42) is circular, and the negative electrode output plate (43) is annular and surrounds the positive electrode output plate (42).

5. The detachable lithium battery with BMS according to claim 2, characterized in that: The plastic shell (50) and the heat shrinkable sleeve (70) are provided with a clearance groove (51) for exposing the TYPE-C charging port (41).

6. The detachable lithium battery with BMS according to claim 3, characterized in that: The top of the plastic shell (50) is provided with an opening for exposing the positive electrode output sheet (42) and the negative electrode output sheet (43).

7. The detachable lithium battery with BMS according to claim 1, characterized in that: A buckle is formed at the bottom of the plastic shell (50) and is buckled with the end of the steel shell (20).

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