Solid state battery pack

Abstract

The utility model discloses a solid-state battery pack, which relates to the technical field of battery packs and comprises a cover body for protecting a battery body, a fixed plate is arranged in the cover body, a plurality of temperature detectors distributed at equal intervals are arranged in the fixed plate, a placement box is arranged on the side surface of the cover body, a movable block is arranged in the placement box, and a screw rod is arranged in the movable block. A motor is arranged at the end of the screw rod, a tank body used for storing a fire extinguishing agent is arranged above the moving block, an eruption control system for the fire extinguishing agent is arranged in the tank body, a connecting box is arranged on one side of the tank body, a sliding groove for the connecting box to slide is formed in the wall body of the cover body, and the motor is electrically connected with a plurality of temperature detectors. The fault area of the battery pack can be accurately extinguished from the interior of an automobile, so that the battery pack suppresses a fire source at the initial stage of fire, and the damage degree of the battery pack is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, specifically to solid-state battery packs. Background Technology

[0002] Solid-state batteries are a battery technology that uses solid electrodes and solid electrolytes to replace lithium-ion or lithium-polymer batteries found in liquid or polymer gel electrolytes, and are widely used in the field of new energy vehicles.

[0003] There are many safety hazards in the traditional battery pack installation environment in the field of new energy vehicles. For example, when a car is involved in an accident and the battery pack is subjected to external impact, its internal structure can be easily damaged, leading to malfunctions or even explosions and fires. Currently, the way to deal with fires is to use fire extinguishers outside the car to extinguish the battery. This method is difficult to extinguish the fire source in its early stages, so it can easily lead to serious damage to the battery pack.

[0004] Therefore, this utility model proposes a solid-state battery pack. Utility Model Content

[0005] The purpose of this utility model is to provide a solid-state battery pack to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a solid-state battery pack, including a cover for protecting the battery body, a fixing plate inside the cover, multiple temperature detectors evenly distributed inside the fixing plate, a placement box on the side of the cover, a moving block inside the placement box, a screw inside the moving block, a motor at the end of the screw, a tank for storing fire extinguishing agent above the moving block, a fire extinguishing agent spray control system inside the tank, a connecting box on one side of the tank, a sliding groove on the wall of the cover for the connecting box to slide, and the motor electrically connected to the multiple temperature detectors.

[0006] Preferably, when the temperature detector detects that the ambient temperature is higher than the normal operating value of the battery pack, the temperature detector sends a start signal to the motor and causes the motor to rotate a preset number of revolutions.

[0007] Preferably, the number of rotations of the drive motors for temperature detectors located at different positions in the fixed plate is different.

[0008] Preferably, the outer wall of the connecting box is provided with a discharge box, which is rotatably connected to the connecting box via a rotating shaft. A fixing plate is provided above the discharge box, and an electric push rod is provided on the side of the fixing plate. The bottom of the electric push rod is fixedly connected to the connecting box, and the electric push rod is electrically connected to the spray control system inside the tank.

[0009] Preferably, the end of the discharge box is sloping outwards.

[0010] Preferably, the fixing plate is located in the center of the cover and is equidistant from the two sets of batteries.

[0011] This utility model has at least the following beneficial effects:

[0012] In this invention, the linkage between multiple temperature detectors and motor rotation allows the canister to be precisely moved to the area to be extinguished. Simultaneously, the canister's spraying system is activated, allowing the extinguishing agent inside the canister to be discharged from the connecting box, providing targeted fire suppression for the high-temperature areas of the battery pack. Compared to existing technologies, this allows for precise extinguishing of fires from inside the vehicle, targeting the faulty areas of the battery pack and suppressing the fire source in its early stages, effectively reducing the extent of damage to the battery pack. Furthermore, while the canister is in the spraying state, the electric push rod causes the extinguishing agent discharged from the discharge box to swing back and forth, further expanding the coverage area of ​​the extinguishing agent and ensuring that the surrounding areas of the high-temperature area receive adequate cooling, resulting in a more thorough fire suppression effect on the battery pack. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the cover structure in this utility model;

[0015] Figure 3 This utility model Figure 2 Enlarged view of the structure of region A in the middle;

[0016] Figure 4 This is a cross-sectional view of the cover and connecting box structure of this utility model;

[0017] Figure 5 This utility model Figure 4 Enlarged view of the structure of region B in the middle.

[0018] In the diagram: 1-Cover; 2-Fixing plate; 3-Temperature detector; 4-Placement box; 5-Moving block; 6-Screw; 7-Motor; 8-Tank; 9-Connecting box; 10-Slide groove; 11-Discharge box; 12-Fixing plate; 13-Electric push rod. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-5This utility model provides a technical solution: a solid-state battery pack.

[0021] Example

[0022] The device includes a cover 1 for protecting the battery body. Inside the cover 1, there is a fixing plate 2 and it is fixedly connected to the cover 1. The fixing plate 2 is located in the center of the cover 1 and is equidistant from the two battery packs. Inside the fixing plate 2, there are multiple temperature detectors 3 that are evenly distributed. All temperature detectors 3 are fixedly connected to the fixing plate 2. All temperature detectors 3 are located in the middle area of ​​the battery pack. Therefore, when an abnormal high temperature occurs in a battery pack, the temperature detectors 3 can detect it immediately. At the same time, each temperature detector 3 represents one end area of ​​the entire battery pack, which is more conducive to localized and accurate detection of the operating temperature of the battery pack.

[0023] The side of the enclosure 1 is provided with a placement box 4 and is fixedly connected to it. Inside the placement box 4 is a movable block 5, and inside the movable block 5 is a screw 6 and is threadedly connected to it. Both ends of the screw 6 are rotatably connected to the placement box 4. The end of the screw 6 is provided with a motor 7. The motor 7 drives the screw 6 to rotate through a coupling. The side of the motor 7 is slidably connected to the placement box 4. Above the movable block 5 is a tank 8 for storing extinguishing agent and is fixedly connected to it. Inside the tank 8 is a spray control system for extinguishing agent. This spray control system is existing technology and is electrically connected to the motor 7. After the motor 7 stops rotating a preset number of times, the extinguishing agent in the tank 8 is automatically sprayed out by the spray control system. One side of the tank 8 is provided with a connecting box 9 and is connected to it. The connecting box 9 is L-shaped. The bottom of the connecting box 9 is fixedly connected to the movable block 5 by bolts. The wall of the enclosure 1 is provided with a sliding groove 10 for the connecting box 9 to slide. The motor 7 is electrically connected to multiple temperature detectors 3.

[0024] In addition, the outer wall of the connecting box 9 is provided with a discharge box 11. The discharge box 11 is rotatably connected to the connecting box 9 via a rotating shaft. A fixing plate 12 is provided on the top of the discharge box 11 and is fixedly connected thereto. An electric push rod 13 is provided on the side of the fixing plate 12 and is fixedly connected thereto. The bottom of the electric push rod 13 is fixedly connected to the connecting box 9. The electric push rod 13 is electrically connected to the spray control system inside the tank 8. When the tank 8 is in the spraying state, the electric push rod 13 automatically performs reciprocating extension and retraction movements. The end of the discharge box 11 is shaped as an outwardly expanding inclined shape, which is more conducive to expanding the dispersion range of the extinguishing agent.

[0025] Working principle:

[0026] When a temperature detector 3 within the fixed plate 2 detects that the ambient temperature exceeds the normal operating value of the battery pack, the temperature detector 3 sends a start signal to the motor 7, causing the motor 7 to rotate a preset number of times. The motor 7 then drives the screw 6, which in turn moves the moving block 5 within the placement box 4 until it reaches the detection area of ​​the temperature detector 3 that sent the signal. The number of rotations of the motor 7 driven by temperature detectors 3 at different positions within the fixed plate 2 varies, but when any temperature detector 3 detects an abnormal temperature, the moving block 5 can slide to the designated high-temperature area. After this, the motor 7 activates the spray system of the tank 8 via an electrical signal, causing the extinguishing agent within the tank 8 to be discharged from the connecting box 9, providing targeted fire suppression for the high-temperature areas of the battery pack. Compared to existing technologies, this allows for precise fire suppression of the battery pack's faulty areas from inside the vehicle, suppressing the fire source in its early stages and effectively reducing the extent of damage to the battery pack.

[0027] In addition, when the tank 8 is in the spraying state, the electric push rod 13 will automatically reciprocate and extend. The electric push rod 13 will then drive the discharge box 11 to reciprocate and rotate in the opposite direction through the fixing plate 12. This will cause the extinguishing agent discharged from the discharge box 11 to also swing back and forth, which can further expand the coverage of the extinguishing agent and allow the surrounding area of ​​the high temperature area to be effectively cooled, making the fire extinguishing effect of the battery pack more complete.

[0028] 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, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0029] 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 solid-state battery pack, comprising a cover (1) for protecting the battery body, characterized in that: The inside of the cover (1) is provided with a fixing plate (2), and the inside of the fixing plate (2) is provided with multiple temperature detectors (3) distributed at equal intervals. The side of the cover (1) is provided with a placement box (4), the inside of the placement box (4) is provided with a moving block (5), the inside of the moving block (5) is provided with a screw (6), the end of the screw (6) is provided with a motor (7), the top of the moving block (5) is provided with a tank (8) for storing extinguishing agent, the inside of the tank (8) is provided with a spray control system for extinguishing agent, the side of the tank (8) is provided with a connecting box (9), the wall of the cover (1) is provided with a sliding groove (10) for the connecting box (9) to slide, and the motor (7) is electrically connected to multiple temperature detectors (3).

2. The solid-state battery pack according to claim 1, characterized in that: When the temperature detector (3) detects that the ambient temperature is greater than the normal operating value of the battery pack, the temperature detector (3) sends a start signal to the motor (7) and causes the motor (7) to rotate a preset number of times.

3. The solid-state battery pack according to claim 2, characterized in that: The number of rotations of the temperature detectors (3) at different positions in the fixed plate (2) and the drive motors (7) are different.

4. The solid-state battery pack according to claim 1, characterized in that: The outer wall of the connecting box (9) is provided with a discharge box (11). The discharge box (11) is rotatably connected to the connecting box (9) through a rotating shaft. A fixing plate (12) is provided above the discharge box (11). An electric push rod (13) is provided on the side of the fixing plate (12). The bottom of the electric push rod (13) is fixedly connected to the connecting box (9). The electric push rod (13) is electrically connected to the spray control system inside the tank (8).

5. The solid-state battery pack according to claim 4, characterized in that: The end of the discharge box (11) is shaped to be inclined outward.

6. The solid-state battery pack according to claim 5, characterized in that: The fixing plate (2) is located in the center of the cover (1) and is equidistant from the two sets of batteries.

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