Assembly type lithium battery explosion-proof charging device and system

Abstract

The utility model provides an assembly type lithium battery explosion-proof charging device and system, the device comprises a battery compartment main body, the battery compartment main body is provided with a compartment door, a cavity for accommodating a battery is arranged in the battery compartment main body, the side wall of the battery compartment main body is provided with a water inlet, an overflow port and an exhaust port, the water inlet is connected with a water inlet pipe, the overflow port is connected with an overflow pipe, the overflow pipe comprises a first overflow pipe and a second overflow pipe, the second overflow pipe is vertically arranged, one end of the first overflow pipe is connected with the overflow port, and the other end of the first overflow pipe is connected with the middle of the second overflow pipe; and a charging socket is also arranged in the battery compartment main body. When the battery accidentally burns, water can be quickly injected into the bin through the water inlet pipe to extinguish fire, the overflow pipe plays an overflow role, redundant water is discharged, the internal pressure of the battery bin main body is prevented from being too large, and the flowing water can continuously cool the battery. The exhaust port plays a role in exhausting, so that the internal pressure of the battery compartment main body is prevented from being too high.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery explosion -proof charging technical field especially relates to assembly type lithium battery explosion -proof charging device and system. BACKGROUND

[0002] China is a big country of production, use and export of lithium battery electric bicycle, and its safe charging problem is very important. In the current charging mode, the electric bicycle mainly promoted in the parking shed with car charging mode has many safety hazards. Once the lithium battery catches fire during charging, it is difficult to effectively stop the fire due to its combustion characteristics. When a bicycle catches fire during charging, it is easy to cause the phenomenon of "fire burning along the line", which not only harms the surrounding vehicles, causes a large number of vehicles and batteries to be destroyed, causes huge economic losses, but also threatens the safety of personnel's life. Moreover, the existing charging facilities lack effective monitoring and response measures for the signs of lithium battery combustion, and it is difficult to effectively prevent and control before or at the early stage of the accident, which cannot meet the urgent needs of safe charging of lithium battery electric bicycle.

[0003] The announcement number CN114899898B discloses an assembly type lithium battery explosion -proof charging system, which comprises a charging cabinet body, the charging cabinet body contains a plurality of compartments, a battery compartment is arranged in the compartment and pulled in the inner and outer directions, a placing opening is formed on one side of the battery compartment corresponding to the compartment, a compartment door is arranged on the battery compartment corresponding to the placing opening, a spraying opening is formed on the top of the battery compartment, and at least a sealing body is arranged on the edge of the placing opening or the inner side of the compartment door.

[0004] When in use, once the lithium battery catches fire during charging, it is difficult to effectively stop the fire due to its combustion characteristics. When a bicycle catches fire during charging, it is easy to cause the phenomenon of "fire burning along the line", which not only harms the surrounding vehicles, causes a large number of vehicles and batteries to be destroyed, causes huge economic losses, but also threatens the safety of personnel's life. Therefore, we propose an assembly type lithium battery explosion -proof charging system. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an assembly type lithium battery explosion -proof charging device and system, which solves the existing problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An assembled lithium battery explosion-proof charging device, comprising a battery compartment main body, the battery compartment main body is provided with a compartment door, a cavity for accommodating a battery is arranged in the battery compartment main body, a water inlet, an overflow port and an exhaust port are arranged on the side wall of the battery compartment main body, the horizontal height of the water inlet is lower than that of the overflow port and the exhaust port, the water inlet is connected with a water inlet pipe, the overflow port is connected with an overflow pipe, the overflow pipe comprises a first overflow pipe and a second overflow pipe, the second overflow pipe is vertically arranged, one end of the first overflow pipe is connected with the overflow port, and the other end is connected with the middle part of the second overflow pipe, and a charging socket is further arranged in the battery compartment main body.

[0008] Further, the horizontal height of the overflow port is higher than that of the top surface of the battery.

[0009] Further, the first overflow pipe is inclinedly arranged, and the horizontal height of the end connected with the second overflow pipe is lower than that of the end connected with the overflow port.

[0010] Further, the bottom inner wall of the battery compartment main body is fixedly installed with a guide rail, the guide rail is a cuboid strip, and the guide rail is an engineering plastic structure.

[0011] Further, a framework is arranged on the outer side of the battery compartment main body.

[0012] Further, a sealing strip is fixedly installed between the compartment door and the battery compartment main body.

[0013] Further, a water baffle is fixedly installed on the outer side of the battery compartment main body below the compartment door.

[0014] Further, the assembled lithium battery explosion-proof charging device further comprises a temperature sensor, an electric control device and an electromagnetic valve, the temperature sensor is arranged in the battery compartment main body, the temperature sensor is electrically connected with the input end of the electric control device, and the electromagnetic valve is arranged on the water inlet pipe and is electrically connected with the output end of the electric control device.

[0015] An assembled lithium battery explosion-proof charging system, comprising a plurality of the assembled lithium battery explosion-proof charging devices, each assembled lithium battery explosion-proof charging device is combined and assembled together through horizontal and / or vertical arrangement, and the second overflow pipes of two adjacent assembled lithium battery explosion-proof charging devices are connected.

[0016] Further, each adjacent assembled lithium battery explosion-proof charging device is connected through a connecting corner code.

[0017] Compared with the prior art, the utility model discloses an assembly type lithium battery explosion -proof charging device and system, the device includes the battery compartment main part, the battery compartment main part is equipped with the door, is equipped with the cavity for accommodating the battery in the battery compartment main part, the lateral wall of battery compartment main part is equipped with the water inlet, overflow port and exhaust port, the horizontal height of water inlet is lower than the horizontal height of overflow port and exhaust port, and the water inlet is connected with the water inlet pipe, and the overflow port is connected with the overflow pipe, the overflow pipe includes first overflow pipe and second overflow pipe, the second overflow pipe sets up vertically, one end of first overflow pipe is connected overflow port, and the other end is connected second overflow pipe middle part, the battery compartment main part is also equipped with the charging socket. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be needed to use the drawing of the embodiment briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is the schematic diagram of the assembly type lithium battery explosion -proof charging device of example one.

[0020] Figure 2 It is the schematic diagram of the assembly type lithium battery explosion -proof charging device of example one without showing the door.

[0021] Figure 3 It is the schematic diagram of the assembly type lithium battery explosion -proof charging device of example one from another perspective.

[0022] Figure 4 It is the schematic diagram of the assembly type lithium battery explosion -proof charging device of example one.

[0023] Figure 5 It is the schematic diagram of the assembly type lithium battery explosion -proof charging system of example two without showing the door.

[0024] Figure 6 It is the schematic diagram of the assembly type lithium battery explosion -proof charging system of example one from another perspective.

[0025] Wherein: 1, battery compartment main body; 2, battery; 3, door; 4, water inlet pipe; 5, first overflow pipe; 6, second overflow pipe; 7, charging socket; 8, guide rail; 9, framework; 10, sealing strip; 11, water baffle; 12, temperature sensor; 13, electric control; 14, water level sensor; 15, charger; 16, connecting corner code. DETAILED DESCRIPTION

[0026] 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. 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. Embodiment one

[0027] Reference Figures 1-3 The embodiment provides an assembled lithium battery explosion-proof charging device, which comprises a battery compartment main body 1, the battery compartment main body 1 is provided with a door 3, the battery compartment main body 1 is provided with a cavity for accommodating a battery 2, a water inlet, an overflow port and an exhaust port are arranged on the side wall of the battery compartment main body 1, the horizontal height of the water inlet is lower than that of the overflow port and the exhaust port, the water inlet is connected with a water inlet pipe 4, the overflow port is connected with an overflow pipe, the overflow pipe comprises a first overflow pipe 5 and a second overflow pipe 6, the second overflow pipe 6 is vertically arranged, one end of the first overflow pipe 5 is connected with the overflow port, and the other end is connected with the middle part of the second overflow pipe 6, and the battery compartment main body 1 is further provided with a charging socket 7.

[0028] When the battery 2 accidentally burns, water can be quickly injected into the compartment through the water inlet pipe 4 to extinguish the fire, the overflow pipe plays a role of overflow, and the excess water is discharged to prevent the internal pressure of the battery compartment main body from being too large, and the flowing water can continuously cool the battery. The exhaust port plays a role of exhaust to prevent the internal pressure of the battery compartment main body from being too large.

[0029] It should be noted that the battery compartment main body 1 is a hollow thin-walled container, and the material of the battery compartment main body 1 is plastic material, such as flame-retardant polypropylene.

[0030] In the embodiment, the overflow port and the exhaust port are combined, the overflow port and the overflow pipe play a role of overflow and exhaust, on the one hand, harmful gases generated by the burning of the battery 2 can be discharged, and on the other hand, the excess water is discharged to prevent the internal pressure of the battery compartment main body 1 from being too large.

[0031] In the specific implementation process, the horizontal height of the overflow port is higher than the horizontal height of the top surface of battery 2. In this embodiment, the horizontal height of the overflow port is 10-15 cm higher than the horizontal height of the top surface of battery 2. This can prevent the battery 2 in the upper battery compartment from burning and prevent water after filling from flowing back into the compartment and damaging the battery in this compartment. It can also allow excess water to be smoothly discharged from the battery compartment when filling with water.

[0032] In the specific implementation process, the first overflow pipe 5 is set at an angle, and the horizontal height of the end connected to the second overflow pipe 6 is lower than the horizontal height of the end connected to the overflow port. In this embodiment, the tilt angle of the first overflow pipe 5 is set to 45°.

[0033] In the specific implementation process, a guide rail 8 is fixedly installed on the bottom inner wall of the battery compartment body 1. The guide rail 8 is a cuboid strip and is made of engineering plastic. The guide rail 8 is made of engineering plastic with a low coefficient of friction, such as polytetrafluoroethylene. The design of the guide rail 8 reduces the contact area between the battery 2 and the battery compartment body 1, thereby significantly reducing the frictional resistance when placing and removing the battery 2. This facilitates the user's operation of replacing and charging the battery 2, and also reduces potential safety hazards caused by friction, such as electrostatic sparks.

[0034] In the specific implementation process, a frame 9 is provided on the outside of the battery compartment body 1. The frame 9 serves to reinforce and facilitate expansion.

[0035] like Figure 4 As shown, in the specific implementation process, a sealing strip 10 is fixedly installed between the door 3 and the battery compartment body 1. The function of the sealing strip 10 is to prevent water from overflowing from the gap between the door 3 and the battery compartment body 1 when the battery compartment body 1 is filled with water.

[0036] In the specific implementation process, a water baffle 11 is fixedly installed on the outer side of the battery compartment body 1 below the door 3. The water baffle 11 is made of metal plate such as aluminum plate, and its outward extension distance is greater than the outer edge of the door 3, and its width is also greater than the width of the door 3. When water is filled into the compartment, if the door 3 is not sealed well and water leaks, the water baffle 11 can block the water and prevent it from flowing into the battery compartment of the next layer.

[0037] In its implementation, the assembled lithium battery explosion-proof charging device also includes a temperature sensor 12, an electronic controller 13, and a solenoid valve. The temperature sensor 12 is located inside the battery compartment body 1 and is electrically connected to the input terminal of the electronic controller 13. The solenoid valve is located on the water inlet pipe 4 and is electrically connected to the output terminal of the electronic controller 13. The temperature sensor 12 is a high-precision, fast-response thermistor sensor, which can accurately monitor the temperature change of the battery 2, with a measurement accuracy of ±0.5℃. When the electronic controller 13 detects that the temperature of the temperature sensor 12 is too high, it controls the solenoid valve to open and inject water into the compartment.

[0038] In the specific implementation process, the assembled lithium battery explosion-proof charging device further comprises a water level sensor 14 arranged on the inner wall of the battery compartment main body 1, and the water level sensor 14 is electrically connected with the input end of the electric controller 13. The water level sensor 14 adopts a capacitive sensor, which can accurately detect the water level in the battery compartment. When the water level reaches the set control height, a signal can be sent in time, and the electric controller 13 controls the electromagnetic valve to close and stops water injection into the compartment.

[0039] In the specific implementation process, the rear side wall of the battery compartment main body 1 is further provided with a charger 15, the input end of the charger 15 is connected with the charging socket 7, and the output end of the charger 15 is connected with the battery 2.

[0040] In the specific implementation process, the assembled lithium battery explosion-proof charging device further comprises a wireless communication module electrically connected with the electric controller 13. The wireless communication module can be a WIFI, Bluetooth or 4G communication module, which is used to send an alarm message to a cloud server when the battery 2 is on fire. The cloud server can store relevant data and timely notify relevant personnel such as property management personnel, fire department, etc., so that they can take further measures. Embodiment two

[0041] As shown in Figures 5-6 The embodiment provides an assembled lithium battery explosion-proof charging system, which comprises a plurality of assembled lithium battery explosion-proof charging devices of embodiment one, and the assembled lithium battery explosion-proof charging devices are combined and assembled together through a transverse and / or longitudinal arrangement mode, and the second overflow pipes 6 of two adjacent assembled lithium battery explosion-proof charging devices are connected.

[0042] In the specific implementation process, the assembled lithium battery explosion-proof charging devices share one electric controller 13, and the electric controller 13 is arranged at the top end.

[0043] In the specific implementation process, the skeletons 9 of adjacent assembled lithium battery explosion-proof charging devices are connected through connecting corner codes 16. The connecting corner codes 16 have shapes of cross, L shape and T shape, and the connecting corner codes 16 are made of aluminum alloy. The skeleton 9 is designed through mechanical calculation and optimization, can bear the weight of the battery compartment main body 1 and the battery, and remains stable under different environmental conditions such as earthquake and strong wind, thereby ensuring the safety of the whole system.

[0044] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The above has carried out the detailed introduction to the assembled lithium battery explosion-proof charging system provided by the utility model. The principle and implementation mode of the utility model are described in the text by applying specific embodiments. The above embodiment description is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways. These improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A prefabricated explosion-proof charging device for lithium batteries, characterized in that, The battery compartment body (1) is provided with a compartment door (3), and a cavity for accommodating a battery (2) is arranged in the battery compartment body (1). The side wall of the battery compartment body (1) is provided with a water inlet, an overflow port and an exhaust port. The horizontal height of the water inlet is lower than that of the overflow port and the exhaust port. The water inlet is connected with a water inlet pipe (4), and the overflow port is connected with an overflow pipe. The overflow pipe comprises a first overflow pipe (5) and a second overflow pipe (6). The second overflow pipe (6) is arranged vertically, and one end of the first overflow pipe (5) is connected with the overflow port, and the other end is connected with the middle part of the second overflow pipe (6). The battery compartment body (1) is further provided with a charging socket (7).

2. The assembled lithium battery explosion-proof charging device according to claim 1, characterized in that, The horizontal height of the overflow port is higher than that of the top surface of the battery (2).

3. The assembled lithium battery explosion-proof charging device according to claim 1, characterized in that, The first overflow pipe (5) is arranged obliquely, and the horizontal height of the end connected with the second overflow pipe (6) is lower than that of the end connected with the overflow port.

4. The assembled lithium battery explosion-proof charging device according to claim 1, characterized in that, The bottom inner wall of the battery compartment body (1) is fixedly installed with a guide rail (8). The guide rail (8) is a cuboid strip, and the guide rail (8) is made of engineering plastic.

5. The assembled lithium battery explosion-proof charging device according to claim 1, characterized in that, The outer side of the battery compartment body (1) is provided with a framework (9).

6. The assembled lithium battery explosion-proof charging device according to claim 1, characterized in that, The sealing strip (10) is fixedly installed between the compartment door (3) and the battery compartment body (1).

7. The assembled lithium battery explosion-proof charging device according to claim 1, characterized in that, The outer side of the battery compartment body (1) below the compartment door (3) is fixedly installed with a water baffle (11). 8.The assembled lithium battery explosion-proof charging device according to claim 1, characterized in that, The assembled lithium battery explosion-proof charging device further comprises a temperature sensor (12), an electric control device (13) and an electromagnetic valve. The temperature sensor (12) is arranged in the battery compartment body (1), and the temperature sensor (12) is electrically connected with the input end of the electric control device (13). The electromagnetic valve is arranged on the water inlet pipe (4), and the electromagnetic valve is electrically connected with the output end of the electric control device (13).

9. A prefabricated lithium battery explosion-proof charging system, characterized in that, A plurality of assembled lithium battery explosion-proof charging devices as claimed in claim 1 are combined and assembled together through horizontal and / or vertical arrangement. The second overflow pipes (6) of two adjacent assembled lithium battery explosion-proof charging devices are connected.

10. The assembled lithium battery explosion-proof charging system according to claim 9, characterized in that, Adjacent assembled lithium battery explosion-proof charging devices are connected through connecting corner codes (16).

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