Lithium ion battery pack with high safety

Abstract

The utility model discloses a lithium ion battery pack with high safety, which relates to the technical field of lithium batteries and comprises a mounting plate and a storage box, the storage box is mounted at the top of the mounting plate, a storage cavity is arranged in the storage box, a discharge pipe is mounted at the bottom of the storage cavity, a first spring is mounted on the inner wall of one side of the storage box, and a second spring is mounted on the inner wall of the other side of the storage box. A squeezing plate is mounted at one end of the first spring, and an electric telescopic rod is mounted on the inner bottom wall of the storage box. The fire extinguishing function can be achieved by installing the storage box, when a fire is recognized, the driving motor drives the second bevel gear to rotate, the first bevel gear drives the lead screw to rotate, the sliding block moves along with the lead screw, the sliding block drives the spray head to move to the fire position, the control valve is opened, and fire extinguishing materials are discharged through the telescopic pipe and the spray head; and the lower fire site is extinguished, so that the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium ion battery pack with high safety. Background Art

[0002] A lithium battery pack is a battery system composed of multiple lithium battery cells connected in series or in parallel. It is mainly used in scenarios such as mobile power supplies and energy storage devices. The lithium battery pack is composed of high-quality positive and negative electrode materials, electrolytes, diaphragms and packaging materials. It has the advantages of high energy density, long cycle life, good safety and high reliability. The working principle of the lithium battery pack is mainly based on the charging and discharging process of lithium ions. During charging, the lithium ions on the positive electrode will move to the negative electrode through the electrolyte and embed into the micropores of the carbon layer of the negative electrode; during discharge, the lithium ions embedded in the carbon layer of the negative electrode will escape and return to the positive electrode. This back-and-forth movement of lithium ions between the positive and negative electrodes enables the battery to be charged and discharged repeatedly.

[0003] In summary, the existing lithium battery packs are prone to catching fire when subjected to external forces during use, causing fires and endangering life safety, which is not safe enough. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium-ion battery pack with high safety to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium-ion battery pack with high safety, comprising a mounting plate and a storage box, wherein a storage box is mounted on the top of the mounting plate, a storage cavity is provided inside the storage box, a discharge pipe is mounted on the bottom of the storage cavity, a first spring is mounted on an inner wall of one side of the storage box, an extrusion plate is mounted on one end of the first spring, and an electric telescopic rod is mounted on the inner bottom wall of the storage box.

[0006] Preferably, there are three groups of mounting plates, the top of the mounting plates are provided with wiring holes, the outer walls of the mounting plates are provided with reinforcing plates, and the tops of the mounting plates are provided with placement grooves.

[0007] Preferably, a conductive block is installed on the inner bottom wall of the placement slot, an electric push rod is installed on the inner wall of the mounting plate, and one end of the electric push rod extends into the interior of the placement slot, a clamping plate is installed on one end of the electric push rod, and a lithium battery is placed on the inner bottom wall of the placement slot.

[0008] Preferably, a fixing column is installed on the inner bottom wall of the mounting plate, and a fixing ring is installed on the top of the fixing column.

[0009] Preferably, a lead screw is installed through the inner wall of the fixing ring, and a first bevel gear is installed at one end of the lead screw.

[0010] Preferably, a driving motor is installed on the inner top wall of the mounting plate, a second bevel gear is installed on the output end of the driving motor, and the second bevel gear is meshed with the first bevel gear.

[0011] Preferably, the outer wall of the lead screw is sleeved with a slider, a telescopic tube is installed on the top of the slider, one end of the telescopic tube is connected to one end of the discharge pipe, a nozzle is installed on the bottom of the slider, a control valve is installed on the outer wall of the nozzle, and a monitor is installed on the bottom of the mounting plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can realize the fire extinguishing function by installing a storage box. When a fire is identified, the driving motor drives the second bevel gear to rotate, the first bevel gear drives the lead screw to rotate, and the slider moves accordingly. The slider drives the nozzle to move to the fire position, and the control valve opens, so that the fire extinguishing material is discharged through the telescopic tube and the nozzle, and the fire at the fire below is extinguished, thereby improving the safety of the device;

[0014] 2. The utility model can prevent the lithium battery from falling off by installing a placement groove. The lithium battery is placed in the placement groove, and then the electric push rod is extended to drive the clamping plate to move. The two sets of clamping plates clamp the lithium battery to prevent the lithium battery from moving or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the mounting plate part of the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of the storage box of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the placement slot part of the utility model.

[0019] In the figure: 1. Mounting plate; 2. Wiring hole; 3. Reinforcement plate; 4. Placement slot; 5. Conductive block; 6. Electric push rod; 7. Clamping plate; 8. Lithium battery; 9. Storage box; 10. Storage chamber; 11. Discharge pipe; 12. First spring; 13. Extrusion plate; 14. Electric telescopic rod; 15. Fixed column; 16. Fixed ring; 17. Lead screw; 18. No. 1 bevel gear; 19. Drive motor; 20. No. 2 bevel gear; 21. Telescopic tube; 22. Sprinkler; 23. Control valve; 24. Monitor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1, please refer to Figure 1-Figure 4 The utility model provides an embodiment: a lithium-ion battery pack with high safety, comprising a mounting plate 1 and a storage box 9, wherein the storage box 9 is mounted on the top of the mounting plate 1, and a storage cavity 10 is arranged inside the storage box 9, and a discharge pipe 11 is mounted on the bottom of the storage cavity 10, and a first spring 12 is mounted on an inner wall of one side of the storage box 9, and an extrusion plate 13 is mounted on one end of the first spring 12, and an electric telescopic rod 14 is mounted on the inner bottom wall of the storage box 9. When a fire occurs in the battery pack, the electric telescopic rod 14 contracts so that the electric telescopic rod 14 no longer blocks the first spring 12, and the first spring 12 changes from a contracted state to an extended state, and the first spring 12 pushes the extrusion plate 13 to squeeze the fire extinguishing material inside the storage cavity 10, and the fire extinguishing material is discharged from the discharge pipe 11, and the lithium battery 8 below is extinguished, thereby improving the safety of the battery pack.

[0024] Example 2, please refer to Figure 1 and Figure 4The mounting plate 1 has three groups, a wiring hole 2 is installed on the top of the mounting plate 1, a reinforcing plate 3 is installed on the outer wall of the mounting plate 1, a placement groove 4 is provided on the top of the mounting plate 1, a conductive block 5 is installed on the inner bottom wall of the placement groove 4, an electric push rod 6 is installed on the inner wall of the mounting plate 1, and one end of the electric push rod 6 extends into the interior of the placement groove 4, a clamping plate 7 is installed on one end of the electric push rod 6, a lithium battery 8 is placed on the inner bottom wall of the placement groove 4, the lithium battery 8 is placed in the placement groove 4, and then the electric push rod 16 is extended to drive the clamping plate 7 to move, and the two groups of clamping plates 7 clamp the lithium battery 8 to prevent the lithium battery 8 from moving or falling off.

[0025] Example 3, please refer to Figure 2 The inner bottom wall of the mounting plate 1 is provided with a fixing column 15, the top of the fixing column 15 is provided with a fixing ring 16, the inner wall of the fixing ring 16 is provided with a lead screw 17, one end of the lead screw 17 is provided with a first bevel gear 18, the inner top wall of the mounting plate 1 is provided with a driving motor 19, the output end of the driving motor 19 is provided with a second bevel gear 20, and the second bevel gear 20 is meshed with the first bevel gear 18, the outer wall of the lead screw 17 is provided with a sliding block, the top of the sliding block is provided with a telescopic tube 21, one end of the telescopic tube 21 is connected with the discharge pipe 11 One end is connected, a nozzle 22 is installed at the bottom of the slider, a control valve 23 is installed on the outer wall of the nozzle 22, and a monitor 24 is installed at the bottom of the mounting plate 1. The monitor 24 monitors the battery pack below. When a fire is identified, the drive motor 19 drives the second bevel gear 20 to rotate, and the first bevel gear 18 drives the screw 17 to rotate, and the slider moves accordingly. The slider drives the nozzle 22 to move to the fire position, and the control valve 23 opens, so that the fire extinguishing material is discharged through the telescopic tube 21 and the nozzle 22, and the fire below is extinguished, thereby improving the safety of the device.

[0026] Working principle: the monitor 24 monitors the battery pack below. When a fire is detected, the drive motor 19 drives the second bevel gear 20 to rotate, the first bevel gear 18 drives the screw 17 to rotate, and the slider moves accordingly. The slider drives the nozzle 22 to move to the fire position, and the control valve 23 opens, so that the fire extinguishing material is discharged through the telescopic tube 21 and the nozzle 22 to extinguish the fire below, thereby improving the safety of the device. The lithium battery 8 is placed in the placement slot 4, and then the electric push rod 16 extends to drive the clamping plate 7 to move. The two sets of clamping plates 7 clamp the lithium battery 8 to prevent the lithium battery 8 from moving or falling off.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A lithium-ion battery pack with high safety, comprising a mounting plate (1) and a storage box (9), characterized in that: A storage box (9) is installed on the top of the mounting plate (1), a storage cavity (10) is provided inside the storage box (9), a discharge pipe (11) is installed at the bottom of the storage cavity (10), a first spring (12) is installed on the inner wall of one side of the storage box (9), an extrusion plate (13) is installed at one end of the first spring (12), and an electric telescopic rod (14) is installed on the inner bottom wall of the storage box (9).

2. A lithium-ion battery pack with high safety according to claim 1, characterized in that: The mounting plates (1) have three groups, the top of the mounting plates (1) is provided with wiring holes (2), the outer wall of the mounting plates (1) is provided with reinforcing plates (3), and the top of the mounting plates (1) is provided with placement grooves (4).

3. A lithium-ion battery pack with high safety according to claim 2, characterized in that: A conductive block (5) is installed on the inner bottom wall of the placement groove (4), an electric push rod (6) is installed on the inner wall of the mounting plate (1), and one end of the electric push rod (6) extends into the interior of the placement groove (4), a clamping plate (7) is installed on one end of the electric push rod (6), and a lithium battery (8) is placed on the inner bottom wall of the placement groove (4).

4. A lithium-ion battery pack with high safety according to claim 1, characterized in that: A fixing column (15) is installed on the inner bottom wall of the mounting plate (1), and a fixing ring (16) is installed on the top of the fixing column (15).

5. A lithium-ion battery pack with high safety according to claim 4, characterized in that: A lead screw (17) is installed through the inner wall of the fixing ring (16), and a first bevel gear (18) is installed at one end of the lead screw (17).

6. A lithium-ion battery pack with high safety according to claim 1, characterized in that: A driving motor (19) is installed on the inner top wall of the mounting plate (1), a second bevel gear (20) is installed on the output end of the driving motor (19), and the second bevel gear (20) is meshed with the first bevel gear (18).

7. A lithium-ion battery pack with high safety according to claim 5, characterized in that: The outer wall of the lead screw (17) is sleeved with a slider, a telescopic tube (21) is installed on the top of the slider, one end of the telescopic tube (21) is connected to one end of the discharge pipe (11), a nozzle (22) is installed at the bottom of the slider, a control valve (23) is installed on the outer wall of the nozzle (22), and a monitor (24) is installed at the bottom of the mounting plate (1).

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