Lithium battery double-control fire extinguishing device with plugging structure

Abstract

The lithium battery double-control fire extinguishing device comprises a protective shell, a base, a lifting top plate, a blocking assembly, a flow guide cover, a puncturing pressing plate and a fire extinguishing agent bag, the protective shell is detachably arranged on the base, heat dissipation holes are formed in the two sides of the protective shell, a battery pack is arranged in the protective shell, the battery pack is connected with the base, and the lifting top plate is connected with the base. The flow guide cover is arranged at the bottom of the base, a flow guide opening is formed in the center of the bottom of the flow guide cover, the lifting top plate is arranged at the top of the protective shell in a liftable mode, the bottom of the lifting top plate is connected with the puncturing pressing plate through a sliding rod, the sliding rod movably penetrates through the top of the protective shell, and the puncturing pressing plate is arranged over the fire extinguishing agent bag. A plurality of stabs are distributed on the lower surface of the puncturing pressing plate, the fire extinguishing agent bag is arranged on a net plate, the net plate is fixedly connected with the inner wall of the protective shell and arranged above the battery pack, the blocking assembly comprises blocking side plates, the blocking side plates are fixedly connected with the two sides of the lifting top plate, and the blocking side plates are movably arranged on the surfaces of the heat dissipation holes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium battery fire extinguishing technical field, specifically point to a kind of lithium battery double-control fire extinguishing device with plugging structure. BACKGROUND

[0002] With the continuous development of science and technology, the market demand of double-control lithium battery is also higher and higher, when the traditional double-control lithium battery is used, since lithium battery surface will radiate heat for a long time, when heat reaches a certain degree, fire may occur, which brings safety hazard,

[0003] In the related art, especially in the field of electric bicycles and electric tricycles, the situation of battery spontaneous combustion occurs frequently, and the existing battery pack is usually wrapped with a plastic shell and installed in the electric vehicle. When the battery abnormally heats up or even spontaneously combusts, the plastic shell cannot wrap the exploding battery, and the fire spreads rapidly upwards, leaving the driver insufficient time to handle the emergency and escape quickly, posing a risk to the safety of the driver. INVENTION CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a lithium battery double-control fire extinguishing device with plugging structure, which effectively solves the above problems.

[0005] The technical scheme adopted by the utility model is as follows: the utility model provides a lithium battery double-control fire extinguishing device with plugging structure, which comprises a protective shell, a base, a lifting top plate, a plugging assembly, a flow guide cover, a piercing pressure plate and a fire extinguishing agent package. The protective shell is detachably arranged on the base, heat dissipation holes are formed in the two sides of the protective shell, a battery pack is arranged in the protective shell, the battery pack is connected with the base, the flow guide cover is arranged at the bottom of the base, a flow guide opening is formed in the center of the bottom of the flow guide cover, the lifting top plate is arranged on the top of the protective shell, the bottom of the lifting top plate is connected with the piercing pressure plate through a sliding rod, the sliding rod is movably arranged through the top of the protective shell, the piercing pressure plate is arranged directly above the fire extinguishing agent package, a plurality of protrusions are arranged on the lower surface of the piercing pressure plate, the fire extinguishing agent package is arranged on a mesh plate, the mesh plate is fixedly connected with the inner wall of the protective shell, the mesh plate is arranged above the battery pack, and the plugging assembly comprises a plugging side plate, which is fixedly connected with the two sides of the lifting top plate and movably arranged on the surface of the heat dissipation hole.

[0006] Further, the flow guide cover has a concave center, and a plastic lower cover is threadedly connected to the flow guide opening. Support upright plates are arranged on the lower surface of the base on both sides of the flow guide cover, so that the flow guide opening is higher than the ground. A grating plate is arranged in the base, above the flow guide cover. The battery pack is detachably arranged on the upper surface of the grating plate.

[0007] Further, the plugging assembly further comprises extrusion cylinders, a push plate and a connecting rod, wherein the extrusion cylinders are symmetrically arranged on the two side surfaces of the protection shell, the two ends of the push plate are respectively connected with the output ends of the two extrusion cylinders, one end of the connecting rod is fixedly connected with the middle part of the push plate, and the other end of the connecting rod is connected with the surface of the plugging side plate.

[0008] Further, the fire extinguishing agent bag is a soft package filled with liquid fire extinguishing agent, an adding opening is formed in the side wall of the protection shell, a sealing plate is bolted and connected with the side wall of the protection shell at the adding opening, the sealing plate is in sealing connection with the adding opening, and handles are connected with the two side walls of the protection shell.

[0009] Further, the heat dissipation hole is provided with a slot on one side, and the plugging side plate is in sliding connection with the slot.

[0010] Further, the protection shell and the base are both made of metal, a temperature sensor is arranged in the protection shell, a controller is arranged on one side of the protection shell, and the controller is in electrical connection with the temperature sensor and the extrusion cylinders.

[0011] The beneficial effects achieved by the lithium battery double-control fire extinguishing device with a plugging structure are as follows: the extrusion cylinders cooperate with the plugging side plate to plug the heat dissipation hole when the battery is self-ignited, so as to prevent the flame from escaping, and the linkage between the plugging side plate and the lifting top plate can push the piercing pressing plate to pierce and press the fire extinguishing agent bag on the net plate, so that the liquid fire extinguishing agent is poured onto the battery pack to cover and extinguish the fire, so as to realize rapid response and automatic fire extinguishing in cooperation with the temperature sensor, the flame caused by the explosion of the battery pack can be guided by the downwardly recessed flow guide cover, the protection shell can discharge the flame through the adding opening in the flow guide cover when the protection shell cannot bear the explosion flame, the flame is sprayed downward, the upward burning is avoided, the rapid spread is avoided, and emergency treatment and escape time are provided for the driver. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A three-dimensional structure schematic view of the lithium battery double-control fire extinguishing device with a plugging structure is provided in the utility model.

[0013] Figure 2 An internal structure sectional view schematic view of the lithium battery double-control fire extinguishing device with a plugging structure is provided in the utility model.

[0014] Figure 3 An internal structure sectional view schematic view of the protection shell of the lithium battery double-control fire extinguishing device with a plugging structure is provided in the utility model.

[0015] Figure 4 A structure explosion view of the lithium battery double-control fire extinguishing device with a plugging structure is provided in the utility model.

[0016] Wherein, 1-protect shell, 2-base, 3-lifting top plate, 4-plugging assembly, 5-plugging side plate, 6-extrusion cylinder, 8-piercing pressure plate, 9-thorn, 10-sliding rod, 11-battery pack, 12-duct cover, 13-grating plate, 14-duct, 15-push plate, 16-link, 17-fire extinguishing agent bag, 18-mesh plate, 19-addition port, 20-encapsulation plate, 21-handle, 22-radiating hole, 23-slot.

[0017] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] As Figures 1-4As shown, the utility model provides a lithium battery double -control fire extinguishing device of plugging structure, including protection shell 1, base 2, lifting roof 3, plugging subassembly 4, fairing 12, pierce pressing plate 8 and fire extinguishing agent bag 17, wherein, protection shell 1 is detachably arranged on base 2, and the both sides of protection shell 1 are provided with heat dissipation hole 22, and battery group 11 is arranged in protection shell 1, and battery group 11 is connected with base 2, and fairing 12 is arranged at the bottom of base 2, and the bottom center of fairing 12 is provided with flow guide mouth 14, and lifting roof 3 is arranged on the top of protection shell 1, and the bottom of lifting roof 3 is connected with pierce pressing plate 8 through slide rod 10, and slide rod 10 is movably penetrated through the top of protection shell 1, and pierce pressing plate 8 is arranged directly above fire extinguishing agent bag 17, and the lower surface of pierce pressing plate 8 is distributed with multiple prongs 9, and fire extinguishing agent bag 17 is arranged on screen plate 18, and screen plate 18 is fixedly connected with the inner wall of protection shell 1, and screen plate 18 is arranged above battery group 11, and plugging subassembly 4 includes plugging side plate 5, and plugging side plate 5 is fixedly connected with the both sides of lifting roof 3, and plugging side plate 5 is movably arranged on the surface of heat dissipation hole 22.

[0021] In an embodiment of the utility model, fairing 12 is the structure that concaves to the center, and plastic lower cover is screw -threaded on flow guide mouth 14, and the lower surface of base 2 of the both sides of fairing 12 is provided with support vertical plate, so that flow guide mouth 14 is higher than ground, and the inside of base 2 is provided with grating plate 13, and grating plate 13 is arranged above fairing 12, and battery group 11 is detachably arranged on the upper surface of grating plate 13.

[0022] In an embodiment of the utility model, plugging subassembly 4 still includes extrusion cylinder 6, push plate 15 and connecting rod 16, wherein, extrusion cylinder 6 is symmetrically arranged on the both sides of the surface of protection shell 1, and the both ends of push plate 15 are connected with the output end of the both sides extrusion cylinder 6 respectively, and one end of connecting rod 16 is fixedly connected with the middle part of push plate 15, and the other end of connecting rod 16 is connected with the surface of plugging side plate 5.

[0023] In an embodiment of the utility model, fire extinguishing agent bag 17 is soft package that has filled liquid fire extinguishing agent in the inside, and the side wall of protection shell 1 of fire extinguishing agent bag 17 side is provided with adding mouth 19, and the side wall of protection shell 1 at adding mouth 19 is bolted with encapsulation plate 20, and encapsulation plate 20 is sealedly connected with adding mouth 19, and the both side walls of protection shell 1 are connected with handle 21.

[0024] In an embodiment of the utility model, heat dissipation hole 22 side is provided with slot 23, and plugging side plate 5 is slidably connected with slot 23.

[0025] In an embodiment of the utility model, protection shell 1 and base 2 are all metal material, and protection shell 1 is provided with temperature sensor, and one side of protection shell 1 is provided with controller, and controller is electrically connected with temperature sensor and extrusion cylinder 6.

[0026] Working principle: when using the device, the relevant personnel will fix the battery pack on the grid plate 13 in the base 2 in advance, then cover it with the protective shell 1 and connect the protective shell 1 with the base 2 by using the bolt, then the relevant personnel will fill the fire extinguishing agent bag 17 filled with fire extinguishing agent liquid through the adding port 19 to the mesh plate 18, then seal the adding port 19 by using the packaging plate 20, then the device can be placed in the designated position of the electric vehicle and connected to the power supply.

[0027] When the battery of the electric vehicle self-ignites in the use process, the temperature sensor (not shown in the figure) arranged in the protective shell 1 detects that the temperature of the battery pack 11 exceeds the preset critical value, and then activates the extrusion cylinder 6 through the controller, at this time the extrusion cylinder 6 drives the push plate 15 to descend through the electric push rod, then the connecting rod 16 descends with it and pulls the blocking side plate 5 to move downward, at this time the blocking side plate 5 slides downward in the insertion slot 23 and the heat dissipation hole 22 is blocked, avoiding the flame from escaping from here, the lifting top plate 3 fixedly connected with the blocking side plate 5 is driven to descend by the slide rod 10, so that the multiple protrusions 9 distributed on the lower surface of the piercing plate 8 extrude and pierce the fire extinguishing agent bag 17, so that the liquid fire extinguishing agent in the fire extinguishing agent bag 17 is poured from the mesh plate 18 to the battery pack 11 below to extinguish the fire, when the explosion flame of the battery pack 11 is too large to be extinguished in time, due to the closed space in the protective shell 1, the flame spreads to the flow guide cover 12 through the grid plate 13, and the thinnest lower cover of the flow guide opening 14 is broken after being impacted by the high-temperature flame, so that the explosion flame pours downward, avoiding the upward spread of the flame to cause the rapid burning of the vehicle and directly threaten the driver, thereby providing the driver with reaction time.

[0028] The device has the following beneficial effects: the extrusion cylinder cooperates with the blocking side plate to block the heat dissipation hole when the battery self-ignites, so as to prevent the flame from escaping, and through the linkage of the blocking side plate and the lifting top plate, the piercing plate can extrude and pierce the fire extinguishing agent bag on the mesh plate, so that the liquid fire extinguishing agent is poured onto the battery pack to extinguish the fire, so as to realize rapid response and automatic extinguishing in cooperation with the temperature sensor, and the flow guide cover with the recessed structure can guide the flame when the battery pack explodes, so that the explosion flame is discharged from the adding port through the flow guide cover when the protective shell cannot bear the explosion flame, so that the flame is sprayed downward, avoiding the upward burning to cause rapid spread, thereby providing the driver with emergency treatment and escape time.

[0029] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

[0031] The above description of the present application and its embodiments has been described, which is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme should belong to the protection scope of the present application.

Claims

1. A dual-control fire extinguishing device for lithium batteries with a sealing structure, characterized in that: The device includes a protective shell (1), a base (2), a lifting top plate (3), a sealing assembly (4), a flow guide (12), a puncture pressure plate (8), and an extinguishing agent pack (17). The protective shell (1) is detachably mounted on the base (2). Heat dissipation holes (22) are provided on both sides of the protective shell (1). A battery pack (11) is installed inside the protective shell (1) and is connected to the base (2). The flow guide (12) is located at the bottom of the base (2), and a flow guide port (14) is provided at the center of the bottom of the flow guide (12). The lifting top plate (3) is detachably mounted on the top of the protective shell (1). The bottom of the lifting top plate (3) is open to the airflow. The sliding rod (10) is connected to the puncture pressure plate (8). The sliding rod (10) moves through the top of the protective shell (1). The puncture pressure plate (8) is located directly above the extinguishing agent pack (17). Multiple protrusions (9) are distributed on the lower surface of the puncture pressure plate (8). The extinguishing agent pack (17) is located on the mesh plate (18). The mesh plate (18) is fixedly connected to the inner wall of the protective shell (1). The mesh plate (18) is located above the battery pack (11). The sealing assembly (4) includes a sealing side plate (5). The sealing side plate (5) is fixedly connected to both sides of the lifting top plate (3). The sealing side plate (5) is movably located on the surface of the heat dissipation hole (22).

2. The lithium battery dual-control fire extinguishing device with a sealing structure according to claim 1, characterized in that: The flow guide (12) has a centrally recessed structure, and a plastic lower cover is threaded onto the flow guide (14). Support plates are provided on the lower surface of the base (2) on both sides of the flow guide (12), so that the flow guide (14) is higher than the ground. A grid plate (13) is provided inside the base (2), and the grid plate (13) is located above the flow guide (12). The battery pack (11) is detachably installed on the upper surface of the grid plate (13).

3. A dual-control fire extinguishing device for lithium batteries with a sealing structure according to claim 2, characterized in that: The sealing assembly (4) further includes a compression cylinder (6), a push plate (15), and a connecting rod (16). The compression cylinder (6) is symmetrically arranged on both sides of the protective shell (1). The two ends of the push plate (15) are respectively connected to the output ends of the compression cylinders (6) on both sides. One end of the connecting rod (16) is fixedly connected to the middle of the push plate (15), and the other end of the connecting rod (16) is connected to the surface of the sealing side plate (5).

4. A lithium battery dual-control fire extinguishing device with a sealing structure according to claim 3, characterized in that: The extinguishing agent pack (17) is a soft package filled with liquid extinguishing agent. The protective shell (1) on one side of the extinguishing agent pack (17) has an addition port (19). The protective shell (1) at the addition port (19) is bolted to a sealing plate (20). The sealing plate (20) is sealed to the addition port (19). The protective shell (1) has handles (21) on both sides.

5. A lithium battery dual-control fire extinguishing device with a sealing structure according to claim 4, characterized in that: A slot (23) is provided on one side of the heat dissipation hole (22), and the sealing side plate (5) is slidably connected to the slot (23).

6. A dual-control fire extinguishing device for lithium batteries with a sealing structure according to claim 5, characterized in that: Both the protective shell (1) and the base (2) are made of metal. A temperature sensor is installed inside the protective shell (1). A controller is installed on one side of the protective shell (1). The controller is electrically connected to the temperature sensor and the extrusion cylinder (6).

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