Lithium battery with high-strength protective shell

Abstract

The utility model discloses a lithium battery with a high-strength protective shell in the field of lithium batteries, which comprises a protective shell, a battery module and a master control circuit board, the battery module is arranged in the protective shell, the master control circuit board is arranged in the protective shell, the battery module is electrically connected with the master control circuit board, an anti-collision plate is arranged on the top surface of the protective shell, and the master control circuit board is electrically connected with the anti-collision plate. A plurality of fixing plates are fixedly arranged on the side face of the protective shell, the fixing plates extend in the length direction of the protective shell, and a plurality of square aluminum frames are fixedly arranged on the surfaces of the fixing plates; according to the lithium battery with the high-strength protective shell, the anti-collision plate arranged on the top surface of the protective shell can effectively resist impact from the top and protect the internal battery module and the main control circuit board from being damaged, and the structural strength of the protective shell is enhanced by the plurality of fixed plates fixed on the side surface and the square-shaped aluminum frame on the fixed plates; therefore, the lithium battery can better keep integrity when being subjected to side impact, and the anti-collision performance is high.

Description

Technical Field

[0001] This utility model relates to the field of lithium batteries, specifically to a lithium battery with a high-strength protective casing. Background Technology

[0002] Currently, lithium batteries, as high-efficiency energy storage devices, are widely used in new energy, industrial equipment, and consumer electronics. However, with the expansion of application scenarios (such as outdoor operations, power tools, and mobile energy storage devices), lithium batteries face more complex usage environments.

[0003] Existing lithium batteries still have the following drawbacks: Traditional lithium battery protective cases have a simple structure and lack effective protection against multi-directional impacts from the top, sides, and bottom. This makes them prone to damage to the internal battery modules or main control circuit boards due to collisions. The protective cases lack reinforced support structures, making them susceptible to deformation under pressure or compression, affecting battery sealing and safety. The bottom support structure is poorly designed, leading to structural damage when the battery is under heavy load or stored for extended periods, impacting reliability. The lack of a lateral fixing structure at the bottom makes the battery prone to structural fatigue during stacking, fixing, or movement, and the protective case is easily damaged after long-term use. The excessive weight of the battery module can easily cause the protective shell to be crushed. Alternatively, due to the large weight of the battery module, the bottom of the protective shell needs to have strong load-bearing capacity. Most existing lithium battery protective shells are ordinary flat plates with poor load-bearing capacity. They cannot withstand harsh operating conditions such as bumps and impacts, and they cannot resist destructive impacts and compression. Since vehicles inevitably experience bumps and vibrations when driving on various road conditions, and even in the event of a collision, the battery will be subjected to strong impacts, causing damage to the protective shell. The poor load-bearing capacity of the protective shell makes it easy for the internal battery module to fall out, resulting in low structural strength and poor load-bearing capacity. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a lithium battery with a high-strength protective shell, which can effectively solve the technical problems of existing lithium batteries having poor impact resistance, pressure resistance, collision resistance, low structural strength, and poor load-bearing capacity.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a lithium battery with a high-strength protective shell, including a protective shell, a battery module disposed inside the protective shell, and a main control circuit board disposed inside the protective shell. The battery module and the main control circuit board are electrically connected. An anti-collision plate is provided on the top surface of the protective shell. Several fixing plates are fixedly provided on the side of the protective shell. The fixing plates extend along the length direction of the protective shell. Several U-shaped aluminum frames are fixedly provided on the surface of the fixing plates. The aluminum frames extend along the length direction of the fixing plates. A protective rod is surrounded on the surface of the protective shell. A pull rod is provided at both ends of the protective rod. The protective rod and the pull rod are welded together. Several base plates are fixedly provided at the bottom of the protective shell. Adjacent base plates are evenly distributed. Several support plates are provided on the surface of the base plates. Adjacent support plates are symmetrically arranged. Several bottom rods are fixedly provided on the surface of the base plates. The bottom rods and support plates are all on the same horizontal plane.

[0006] Furthermore, a display screen is embedded in the side of the protective shell, and the display screen is electrically connected to the main control circuit board.

[0007] Furthermore, a power interface is provided at one end of the main control circuit board, and the power interface is electrically connected to the main control circuit board. One end of the power interface extends to the outside of the protective shell.

[0008] Furthermore, a cooling fan is installed inside the protective shell, which is electrically connected to the main control circuit board. An air duct is installed inside the protective shell, with an air inlet at the end near the cooling fan and an air outlet at the end near the power interface. When the cooling fan blows air, air is drawn from the air inlet into the interior of the protective shell and discharged through the air duct from the air outlet, thereby cooling the battery module inside the protective shell.

[0009] Furthermore, a protective cover is provided at one end of the protective shell near the air outlet, and the protective cover is provided with a dustproof net.

[0010] Furthermore, the top surface of the anti-collision plate is provided with a control panel, the surface of the control panel is provided with a number of adjustment buttons and switches, the surface of the control panel is provided with positive electrodes and negative electrodes, and the adjustment buttons, switches, positive electrodes and negative electrodes are all electrically connected to the main control circuit board.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model has a lithium battery with a high-strength protective shell. The anti-collision plate set on the top surface of the protective shell can effectively resist the impact from the top, protecting the internal battery module and main control circuit board from damage. Several fixed plates on the side and the U-shaped aluminum frame on them enhance the structural strength of the protective shell, so that the lithium battery can better maintain its integrity when subjected to side impacts, and has strong anti-collision performance. The protective rods set around the surface of the protective shell and the tie rods at both ends are connected by welding, which further improves the impact resistance and pressure resistance of the protective shell. Several base plates and support plates on the base plates are fixed at the bottom, providing a stable support structure with strong load-bearing capacity, which greatly improves the overall strength of the lithium battery. Attached Figure Description

[0012] Figure 1 This is a perspective view of the lithium battery with a high-strength protective shell according to the present invention.

[0013] Figure 2 This is an exploded view of the lithium battery with a high-strength protective shell according to this utility model.

[0014] Numbering on the map:

[0015] 1-Protective shell; 2-Battery module; 3-Main control circuit board; 4-Power interface; 5-Anti-collision plate; 6-Control panel; 7-Negative electrode; 8-Positive electrode; 9-Switch; 10-Adjustment button; 11-Display screen; 12-Protective rod; 13-Pull rod; 14-Air inlet; 15-Air outlet; 16-Cooling fan; 17-Fixing plate; 18-Aluminum frame; 19-Protective cover; 20-Dustproof net; 21-Base plate; 22-Support plate; 23-Base rod. Detailed Implementation

[0016] 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 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.

[0017] The following is combined with Figure 1 and Figure 2 The present invention provides a detailed description of a lithium battery with a high-strength protective casing:

[0018] A lithium battery with a high-strength protective casing includes a protective casing 1, a battery module 2 disposed inside the protective casing 1, and a main control circuit board 3 disposed inside the protective casing 1. The battery module 2 and the main control circuit board 3 are electrically connected. An anti-collision plate 5 is provided on the top surface of the protective casing 1. Several fixing plates 17 are fixedly provided on the side of the protective casing 1. The fixing plates 17 extend along the length direction of the protective casing 1. Several U-shaped aluminum frames 18 are fixedly provided on the surface of the fixing plates 17. The aluminum frames 18 extend along the length of the fixing plates 17. Extending in the direction, the protective shell 1 is surrounded by a protective rod 12, and each end of the protective rod 12 is provided with a tie rod 13. The protective rod 12 and the tie rod 13 are welded together. Several base plates 21 are fixedly provided at the bottom of the protective shell 1. Adjacent base plates 21 are evenly distributed. Several support plates 22 are provided on the surface of the base plates 21. Adjacent support plates 22 are symmetrically arranged. Several bottom rods 23 are fixedly provided on the surface of the base plates 21. The bottom rods 23 and the support plates 22 are all on the same horizontal plane.

[0019] A display screen 11 is embedded in the side of the protective shell 1. The display screen 11 is electrically connected to the main control circuit board 3. A power interface 4 is provided at one end of the main control circuit board 3, and the power interface 4 is electrically connected to the main control circuit board 3. One end of the power interface 4 extends to the outside of the protective shell 1. A cooling fan 16 is provided inside the protective shell 1, and the cooling fan 16 is electrically connected to the main control circuit board 3. An air duct is provided inside the protective shell 1. An air inlet 14 is provided at the end of the protective shell 1 near the cooling fan 16, and an air outlet 15 is provided at the end of the protective shell 1 near the power interface 4. When the cooling fan... When the fan 16 blows air, air is drawn from the air inlet 14 and blown into the interior of the protective shell 1. The air is then discharged from the air outlet 15 through the air duct, thus achieving heat dissipation for the battery module 2 inside the protective shell 1. A protective cover 19 is provided at one end of the protective shell 1 near the air outlet 15. The protective cover 19 is provided with a dustproof net 20. A control panel 6 is provided on the top surface of the anti-collision plate 5. Several adjustment buttons 10 and switches 9 are provided on the surface of the control panel 6. A positive electrode 8 and a negative electrode 7 are provided on the surface of the control panel 6. The adjustment buttons 10, switches 9, positive electrode 8 and negative electrode 7 are all electrically connected to the main control circuit board 3.

[0020] The anti-collision plate 5 is made of high-strength aluminum alloy with a thickness of 5mm and an anodized surface. The bottom of the protective shell 1 is provided with equidistantly arranged base plates 21. Support plates 22 and base rods 23 are welded on the base plates 21 to form a load-bearing structure. The protective rods 12 surround the protective shell 1 and are welded to the tie rods 13 at both ends to form a ring-shaped anti-compression frame. The protective shell 1 is also equipped with a temperature sensor connected to the main control circuit board 3. The speed of the cooling fan 16 is dynamically adjusted according to the temperature of the battery module 2. It runs at low speed when the temperature is below 40℃, at medium speed when the temperature is between 40-60℃, and at full speed when the temperature is above 60℃. By setting up air ducts inside the protective shell 1, the airflow path is extended, which greatly improves the heat dissipation efficiency. The air outlet 15 is equipped with a protective cover 19 to prevent dust. Fiber optic strain sensors and piezoelectric film sensors are also embedded at the key stress points of the protective shell 1 to monitor the deformation and internal pressure of the protective shell 1 in real time. The data is transmitted to the cloud through a wireless module to warn of damage to the protective shell 1.

[0021] The display screen 11 embedded on the side of the protective shell 1 is electrically connected to the main control circuit board 3, which can display the battery status in real time, such as power, voltage, temperature, etc., for convenient user monitoring. The cooling fan 16 and air duct set inside the protective shell 1 draw in air through the air inlet 14, blow it to the battery module 2 through the cooling fan 16, and finally exhaust it through the air outlet 15, which effectively reduces the operating temperature of the battery module 2 and extends the service life of the lithium battery. The control panel 6 on the top surface of the anti-collision plate 5 integrates the adjustment button 10, switch 9, positive electrode 8 and negative electrode 7, which is electrically connected to the main control circuit board 3, making it convenient for users to adjust battery parameters, control the switch 9 and connect electrodes, improving the ease of operation of the lithium battery.

[0022] The lithium battery in this embodiment has a high-strength protective shell. The anti-collision plate 5 on the top surface of the protective shell 1 can effectively resist the impact from the top and protect the internal battery module 2 and main control circuit board 3 from damage. The fixed plates 17 on the side and the U-shaped aluminum frame 18 on them enhance the structural strength of the protective shell 1, so that the lithium battery can better maintain its integrity when subjected to side impacts and has strong anti-collision performance. The protective rods 12 and the pull rods 13 at both ends of the protective shell 1 are connected by welding, which further improves the impact resistance and pressure resistance of the protective shell 1. The fixed base plates 21 and the support plates 22 on the base plates 21 provide a stable support structure with strong load-bearing capacity, which greatly improves the overall strength of the lithium battery.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lithium battery with a high-strength protective casing, comprising a protective casing, a battery module disposed inside the protective casing, and a main control circuit board disposed inside the protective casing, wherein the battery module and the main control circuit board are electrically connected, characterized in that: The protective shell has a top anti-collision plate and several fixing plates fixedly installed on its sides. The fixing plates extend along the length of the protective shell. Several U-shaped aluminum frames are fixedly installed on the surface of the fixing plates, extending along the length of the fixing plates. Protective rods are arranged around the surface of the protective shell, with tie rods at both ends. The protective rods are welded to the tie rods. Several base plates are fixedly installed at the bottom of the protective shell, with adjacent base plates arranged at equal intervals. Several support plates are installed on the surface of the base plates, with adjacent support plates arranged symmetrically. Several bottom rods are fixedly installed on the surface of the base plates, with the bottom rods and support plates all on the same horizontal plane.

2. The lithium battery with a high-strength protective casing according to claim 1, characterized in that: The protective shell has a display screen embedded in its side, and the display screen is electrically connected to the main control circuit board.

3. The lithium battery with a high-strength protective casing according to claim 1, characterized in that: One end of the main control circuit board is provided with a power interface, which is electrically connected to the main control circuit board, and one end of the power interface extends to the outside of the protective shell.

4. The lithium battery with a high-strength protective casing according to claim 3, characterized in that: The protective shell is equipped with a cooling fan, which is electrically connected to the main control circuit board. The protective shell is also equipped with an air duct. An air inlet is located at the end of the protective shell near the cooling fan, and an air outlet is located at the end of the protective shell near the power interface. When the cooling fan blows air, the air is drawn from the air inlet into the interior of the protective shell and discharged from the air outlet through the air duct, thereby cooling the battery module inside the protective shell.

5. The lithium battery with a high-strength protective casing according to claim 4, characterized in that: The protective shell is provided with a protective cover at one end near the air outlet, and the protective cover is provided with a dustproof net.

6. The lithium battery with a high-strength protective casing according to any one of claims 1-5, characterized in that: The top surface of the anti-collision plate is provided with a control panel, the surface of the control panel is provided with a number of adjustment buttons and switches, and the surface of the control panel is provided with positive and negative electrodes. The adjustment buttons, switches, positive and negative electrodes are all electrically connected to the main control circuit board.

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