CN219360836U - Fire prevention bucket is used in lithium cell charging - Google Patents

Abstract

The application relates to a lithium cell charges with fire prevention bucket, include: the barrel comprises a barrel body and a barrel cover, wherein a circuit board and a socket panel are arranged on the barrel cover, and a temperature sensor, a smoke sensor, a gas detector, a current detector and a control chip are connected to the circuit board; the socket panel is electrically connected with the circuit board, and the circuit board is provided with an overcurrent protection switch capable of cutting off the charging circuit. The fireproof barrel for lithium battery charging can protect the lithium battery during charging, and reduce the risks of deflagration and fire spreading.

Description

Fire prevention bucket is used in lithium cell charging

Technical Field

The application relates to the technical field of lithium battery charging, in particular to a fireproof barrel for lithium battery charging.

Background

In the aspect of electric bicycle charging safety, the targeted scheme mainly starts from two angles of an explosion-proof box for protecting a battery body and an intelligent socket for sensing a charging danger signal.

The related scheme of explosion-proof box mainly is to charge rechargeable lithium cell in the safety box body, when dangerous, will explode or the dangerous restriction of condition of a fire in a small range through the box body.

The intelligent socket scheme mainly senses dangers through means such as current and temperature sensors, and then carries out alarm processing on dangerous signals, so that charging safety is protected.

The explosion-proof box is only limited to restrain the fire in the box body space, so that a user cannot sense and process the danger in advance and can only passively wait for the end of the fire; the intelligent socket can alarm to a certain extent, but is limited to sound and light signals, if no person exists in the house, the alarm signals cannot be processed, and the danger still exists. And once not handled in time, the smart jack cannot limit the spread of fire.

Disclosure of Invention

The utility model aims at providing a lithium cell is fire prevention bucket for charging can protect the lithium cell when charging, reduces the risk that deflagration and condition of a fire spread.

In order to achieve the above object, the present utility model provides a fire prevention barrel for lithium battery charging, comprising: the barrel comprises a barrel body and a barrel cover, wherein a circuit board and a socket panel are arranged on the barrel cover, and a temperature sensor, a smoke sensor, a gas detector and a control chip are connected to the circuit board;

the socket panel is electrically connected with the circuit board, and the circuit board is provided with an overcurrent protection switch capable of cutting off the charging circuit.

In an alternative embodiment, a fan is disposed on the tub cover, and the fan is electrically connected to the circuit board.

In an alternative implementation mode, the circuit board is also connected with an audible and visual alarm and a communication module, and the audible and visual alarm and the communication module are respectively and electrically connected with the control chip.

In an alternative embodiment, a fire extinguishing assembly is arranged on the bottom wall of the inner side of the barrel cover, and the fire extinguishing assembly comprises a fire extinguishing bag made of inflammable fabric and a fire extinguishing agent contained in the fire extinguishing bag.

In an alternative embodiment, the barrel body is of a double-layer structure and comprises an inner barrel and an outer barrel, and a gap is reserved between the inner barrel and the outer barrel.

In an alternative embodiment, the inner barrel and the outer barrel are respectively provided with pressure relief holes, and the pressure relief holes are arranged in a staggered manner on the barrel body.

In an alternative embodiment, a hinge is connected between the outer tub and the tub cover, and the tub cover is covered on the tub body in an openable manner.

In an alternative embodiment, the barrel body comprises a cavity for accommodating the lithium battery, and a notch for the charging wire to penetrate out of the cavity is arranged on the bottom edge of the barrel cover.

In an alternative embodiment, a groove is formed in the barrel cover, the fan, the socket panel and the circuit board are all installed in the groove, and a cover plate is arranged on the groove.

In an alternative embodiment, the circuit board is externally connected with a power supply, and a starting key and an indicator lamp are arranged on the circuit board.

Through the lithium cell that sets up with fire prevention bucket, can put into the bucket with the lithium cell and charge, effectively strengthened the security that the lithium cell charges.

The circuit board and the socket panel which are arranged on the barrel cover are combined, normal charging can be guaranteed, the temperature sensor, the smoke sensor, the gas detector, the current detector and the control chip which are connected to the circuit board can detect the temperature, the smoke and the gas in the fireproof barrel, a dangerous sensing module in the fireproof barrel is formed, and meanwhile, whether charging current is abnormal or not is judged through the current detector.

The control chip can control the on-off of the charging circuit, so that the charging circuit is disconnected according to the detected abnormal parameters, and intelligent control in the charging process of the lithium battery is ensured.

The socket panel is electrically connected with the circuit board, and the overcurrent protection switch capable of cutting off the charging circuit is arranged on the circuit board, so that the charging circuit can be cut off under the condition that the charging circuit is overlarge, and the risks of deflagration and fire are avoided to the greatest extent.

Additional features and advantages of the present application will be set forth in the detailed description which follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a fire prevention barrel for charging a lithium battery in the present application;

fig. 2 is a schematic top view of a fire protection barrel for charging lithium batteries in the present application;

FIG. 3 is a schematic view of the structure of the circuit board, fan and socket panel on the tub cover;

fig. 4 is a schematic structural view of the tub cover in an opened state in the present application.

Icon:

1-a barrel body; 11-an inner barrel; 12-an outer barrel; 13-a pressure relief hole; 14-cavity;

2-a barrel cover; 21-fire extinguishing bag; 22-notch; 23-grooves; 24-cover plate;

3-a circuit board; 31-a temperature sensor; 32-smoke sensor; 33-a gas detector; 34-an overcurrent protection switch; 35-an audible and visual alarm; 36-a communication module; 37-start key; 38-an indicator light;

4-a receptacle panel;

5-a fan;

6-hinge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The lithium cell among this application charges with fire prevention bucket, mainly used lithium cell's safety charge, through the form of shelving the lithium cell in fire prevention bucket, reduce the influence to the external world when the explosion takes place for lithium cell once.

Referring to fig. 1-4, specifically, detection components such as temperature, smoke, gas and current are arranged on the circuit board 3, so that environmental parameters and current parameters in the fireproof barrel are monitored in real time, and the on-off of a charging circuit is controlled by a control chip, so that the safety of the lithium battery in the charging process is ensured.

Through being connected socket panel 4 and circuit board 3 electricity to combine the overcurrent protection switch 34 that can cut off charging circuit that sets up on circuit board 3, can stop the charge by oneself under the too high circumstances of charging current, reduce the deflagration risk of firing of lithium cell in the charging process to a great extent.

The utility model relates to a fireproof barrel for charging lithium batteries, which mainly comprises a barrel body 1 and a barrel cover 2, wherein the barrel body 1 and the barrel cover 2 form a main body structure of the fireproof barrel, the barrel body 1 is particularly used for accommodating lithium batteries, and the barrel cover 2 is mainly used for installing a circuit board 3 and a socket panel 4.

The circuit board 3 is externally connected with a power supply, and specifically, is powered through the outside. When charging, the charger of lithium cell sets up in the fire prevention bucket outside, and the power plug of charger is pegged graft on the socket panel 4 of fire prevention bucket, and the interface that charges of charger stretches into staving 1 and is connected with the lithium cell.

The circuit board 3 is connected with a temperature sensor 31, a smoke sensor 32, a gas detector 33, a current detector, and a control chip (the current detector and the control chip are not shown in the drawing), and specifically, the temperature sensor 31, the smoke sensor 32, the gas detector 33, and the current detector are all electrically connected with the control chip.

The temperature sensor 31 is mainly used for monitoring the temperature in the fireproof barrel, the smoke sensor 32 is mainly used for monitoring whether smoke appears in the fireproof barrel, the gas detector 33 is mainly used for monitoring hazardous gas components such as toxic and harmful substances in the fireproof barrel, including hydrogen, CO, VOC and the like, and the current detector is mainly used for monitoring whether the current of the charging circuit is abnormal.

The detection devices with different parameters are electrically connected with the control chip, and the monitored environmental parameters and current parameters can be transmitted to the control chip in real time, so that the control chip can control the on-off of the charging circuit according to actual conditions, and further charging can be timely stopped under abnormal charging conditions, and the risks of deflagration and fire disaster occurrence of the lithium battery are reduced.

The socket panel 4 is electrically connected with the circuit board 3, and the connection between the socket panel 4 and the lithium battery can provide a charging circuit for the lithium battery by combining the external power supply of the circuit board 3 and the connection between the charger and the lithium battery.

Through setting up overcurrent protection switch 34 on circuit board 3, can cut off charging circuit, form charging circuit's overcurrent protection, in the charging process, in case the circumstances of the anomaly that charging current is too high appear, overcurrent protection switch 34 can automatic cutout charging circuit, effectively strengthen the security of lithium cell charging process.

The circuit board 3 is also connected with an audible and visual alarm 35 and a communication module 36, and the audible and visual alarm 35 and the communication module 36 are respectively and electrically connected with the control chip. By the arrangement mode, when the charging abnormality occurs, the control chip can control the audible and visual alarm 35 to give an alarm, and meanwhile, the alarm is sent to the mobile phone end of the user in a form of a short message or a mobile phone app alarm through the communication module 36.

In addition, through the electrical connection of the communication module 36 and the control chip, the temperature sensor 31, the smoke sensor 32, the gas detector 33 and the current detector are respectively electrically connected with the control chip, so that parameter signals of the temperature, the smoke, the gas and the current received by the control chip can be transmitted to the terminal through the communication module 36, and a user can grasp the environment and the current parameters in real time.

In one specific embodiment, the barrel cover 2 is provided with a fan 5 for cooling the lithium battery during charging, and the fan 5 can be powered by electrically connecting the fan 5 with the circuit board 3 and combining an external power supply of the circuit board 3.

In the operation process of the fan 5 in the embodiment, the outside air of the barrel body 1 can be led in, and the inside air of the barrel body 1 is led out, so that the ventilation of the inside air and the outside air of the fireproof barrel is realized, and a good heat dissipation and cooling effect is achieved.

In one preferred embodiment, in order to prevent the explosion fire from being unable to interfere and not effectively limit the spread of the fire, a fire extinguishing assembly is further arranged on the bottom wall of the inner side of the barrel cover 2, wherein the fire extinguishing assembly comprises a fire extinguishing bag 21, the fire extinguishing bag 21 is contained with a fire extinguishing agent, and the fire extinguishing bag 21 is made of inflammable fabric, and chemical fiber materials such as terylene, chinlon, acrylon, vinylon or spandex are preferably adopted.

Once a fire occurs, the fire extinguishing bag 21 made of inflammable fabric can be broken in time, and the fire extinguishing agent in the fire extinguishing bag 21 is released outwards, so that the lithium battery after the fire is extinguished effectively, and the spread of the fire is prevented effectively.

The barrel body 1 in the embodiment is of a double-layer structure and comprises an inner barrel 11 and an outer barrel 12, a gap is reserved between the inner barrel 11 and the outer barrel 12, a double-layer heat insulation design is formed, and the heat influence of battery ignition on the surrounding can be reduced.

Further, the inner barrel 11 and the outer barrel 12 are respectively provided with a pressure relief hole 13, and the pressure relief holes 13 on the inner barrel 11 and the pressure relief holes 13 on the outer barrel 12 are arranged in a staggered manner. Preferably, the pressure release holes 13 on the inner barrel 11 and the pressure release holes 13 on the outer barrel 12 are respectively arranged on two adjacent side wall surfaces, each pressure release hole comprises a plurality of groups of strip holes, the two groups of strip holes are staggered on the adjacent side wall surfaces up and down, and when no fire disaster occurs, the air in the fireproof barrel can be led out through the fan 5; the pressure release holes 13 are arranged in a staggered manner on the inner layer and the outer layer, so that the pressure release of the barrel body is facilitated, the flame can be prevented from being directly sprayed outside, and the influence on the outside is reduced.

In the utility model, the barrel body 1 and the barrel cover 2 of the fireproof barrel are connected through the hinge 6, specifically, the hinge 6 is arranged between the outer barrel 12 and the barrel cover 2, so that the barrel cover 2 can be covered on the barrel body 1 in an openable manner.

Through this kind of setting mode, can make things convenient for the lithium cell to place in staving 1 to and to the airtight of fire prevention bucket after placing. The tub 1 comprises a cavity 14 for receiving a lithium battery, and the charging interface of the charger extends into the tub 1 and is connected to the lithium battery, based on the above-described plug-in connection of the charger to the socket panel 4 of the fire-resistant tub. In order to prevent the charger connecting wire from affecting the normal buckling cover of the barrel cover 2 on the barrel body 1, a notch 22 for the charging wire to penetrate out of the cavity 14 of the barrel body 1 is arranged on the bottom edge of the barrel cover 2, and the buckling cover of the barrel cover 2 on the barrel body 1 is ensured to be tightly screwed.

Be provided with recess 23 on bung 2, fan 5, socket panel 4 and circuit board 3 are all installed in recess 23, are connected with apron 24 simultaneously on recess 23, are provided with the through-hole that supplies socket panel 4 to pass on the apron 24, after covering apron 24 buckle closure on recess 23, can make socket panel 4's top surface expose, make things convenient for charger power plug's grafting.

The circuit board 3 is externally connected with a power supply to ensure normal power supply of the fire prevention barrel for charging the lithium battery, the circuit board 3 is provided with a starting key 37 and an indicator lamp 38, the starting key 37 can control the starting and stopping of charging, and the indicator lamp 38 can display the working state of the fire prevention barrel.

When the fireproof barrel for charging the lithium battery is used, firstly, the lithium battery is placed in the fireproof barrel, a charging interface of a charger and an electric inserting port of the lithium battery are in butt joint, a charger main body is positioned outside the barrel, an electric wire enters the barrel through a notch 22 on the bottom edge of the barrel cover 2, then a fireproof barrel power supply is connected, and a charger power plug is inserted into a fireproof barrel socket panel 4. Finally, the start button 37 is pressed to start charging.

At the moment, the fireproof barrel starts to work, all sensors are started to monitor conditions in the barrel, and if no abnormality exists, the charging circuit is kept on until the charging is completed; if an abnormal condition is detected, the charging circuit is cut off through the overcurrent protection switch 34 or the control chip, the audible and visual alarm 35 is started, the built-in fire extinguishing bag 21 is opened for extinguishing fire, and alarm information is uploaded through the communication module 36.

It should be noted that, without conflict, features in the embodiments of the present application may be combined with each other.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. A fire prevention bucket for lithium cell charges, characterized in that includes: the barrel comprises a barrel body and a barrel cover, wherein a circuit board and a socket panel are arranged on the barrel cover, and a temperature sensor, a smoke sensor, a gas detector, a current detector and a control chip are connected to the circuit board;

the socket panel is electrically connected with the circuit board, and the circuit board is provided with an overcurrent protection switch capable of cutting off the charging circuit.

2. The fire prevention bucket for lithium battery charging according to claim 1, wherein a fan is arranged on the bucket cover, and the fan is electrically connected with the circuit board.

3. The fire prevention bucket for lithium battery charging according to claim 2, wherein the circuit board is further connected with an audible and visual alarm and a communication module, and the audible and visual alarm and the communication module are respectively and electrically connected with the control chip.

4. The fire prevention bucket for lithium battery charging according to claim 1, wherein a fire extinguishing assembly is provided on the inner bottom wall of the bucket cover, and the fire extinguishing assembly comprises a fire extinguishing bag of inflammable fabric and a fire extinguishing agent contained in the fire extinguishing bag.

5. The fire prevention bucket for lithium battery charging according to any one of claims 1-4, wherein the bucket body has a double-layer structure, comprising an inner bucket and an outer bucket, and a gap is left between the inner bucket and the outer bucket.

6. The fire prevention bucket for lithium battery charging according to claim 5, wherein pressure release holes are respectively arranged on the inner bucket and the outer bucket, and the pressure release holes are arranged on the bucket body in a staggered manner.

7. The fire prevention bucket for lithium battery charging according to claim 5, wherein a hinge is connected between the outer bucket and the bucket cover, and the bucket cover is covered on the bucket body in an openable and closable manner.

8. The fire prevention bucket for lithium battery charging according to claim 5, wherein the bucket body comprises a cavity for accommodating the lithium battery, and a notch for allowing a charging wire to pass out of the cavity is arranged on the bottom edge of the bucket cover.

9. The fire prevention bucket for lithium battery charging according to claim 2, wherein a groove is arranged on the bucket cover, the fan, the socket panel and the circuit board are all installed in the groove, and a cover plate is arranged on the groove.

10. The fire prevention bucket for lithium battery charging according to claim 1, wherein the circuit board is externally connected with a power supply and is provided with a starting button and an indicator lamp.