CN110466380A - Battery charging abnormality eliminating method and charging cabinet in a kind of charging cabinet - Google Patents

Abstract

The invention relates to a method for handling abnormal charging of a battery in a charging cabinet. The implementation method is as follows: monitor the battery being charged in the charging cabinet for fire; In the liquid tank filled with fire extinguishing liquid, part or all of it is submerged under the liquid surface of the fire extinguishing liquid; in this way, the impending or existing fire can be automatically extinguished without being on duty, so as to reduce the battery fire caused by for personal and property damage purposes.

Description

A method for handling abnormal charging of batteries in a charging cabinet and the charging cabinet

technical field

The invention relates to the technical field of charging cabinets, and more specifically, to a method for handling abnormal charging of batteries in the charging cabinet and the charging cabinet.

Background technique

With the increasing popularity of electric vehicles and the fire risk of charging indoors, the country requires that the charging of electric vehicle power batteries be carried out outdoors, and charging cabinets are usually used to charge the batteries; the batteries on electric vehicles are usually lithium batteries, lithium batteries There is a potential safety hazard of fire during charging, and reports of lithium battery charging on fire are not uncommon. There is a need for a method for handling abnormal battery charging in a charging cabinet and a charging cabinet that can reduce the loss caused by lithium battery charging on fire.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for handling abnormal charging of a battery in a charging cabinet and to provide a charging cabinet for the above-mentioned defects of the prior art.

The technical solution adopted by the present invention to solve its technical problems is:

Construct a method for handling abnormal charging of batteries in the charging cabinet, and its implementation method is as follows:

The first step: monitor the fire of the charging battery in the charging cabinet;

Step 2: When it is detected that the battery is on fire or has a tendency to catch fire, change the position of the battery so that it enters the liquid tank equipped with fire extinguishing liquid on the charging cabinet, and submerges part or all of it under the liquid surface of the fire extinguishing liquid.

The method for handling abnormal battery charging in the charging cabinet according to the present invention, wherein the fire monitoring includes monitoring the battery surface temperature, monitoring the smoke in the charging chamber, monitoring the carbon dioxide concentration in the charging chamber, and monitoring the oxygen concentration in the charging chamber. one or more.

The method for handling abnormal battery charging in the charging cabinet according to the present invention, wherein the liquid tank is arranged at the inner bottom of the charging cabinet, and there is a power supply between the charging chamber for charging the battery and the front side plate of the charging cabinet. a space through which the battery falls, which communicates with the interior of the liquid tank;

The method of changing the position of the battery so that it enters the liquid tank equipped with fire extinguishing liquid on the charging cabinet is: the battery moves from the charging chamber to the gap, and falls into the liquid tank from the gap Inside.

The method for handling abnormal battery charging in the charging cabinet according to the present invention, wherein, by turning over the inner bottom plate of the charging chamber, the battery slides toward the gap, and the battery falls into the liquid tank through the gap;

Alternatively, a traverse mechanism is used to drive the battery to slide toward the gap, so that the battery falls into the liquid tank through the gap.

The method for handling abnormal battery charging in the charging cabinet according to the present invention, wherein, the liquid tank is arranged directly below the charging chamber for charging the battery, and the liquid tank and the charging chamber are arranged in a one-to-one correspondence; The battery is charged using a contact connector or the power supply connection is disconnected when the battery is detected to be on fire or has a fire tendency in the second step;

The method of changing the position of the battery so that it enters the liquid tank equipped with fire extinguishing liquid on the charging cabinet is: open the inner bottom plate of the charging chamber, so that the battery falls into the liquid tank located directly below the inner bottom plate .

The method for handling abnormal battery charging in the charging cabinet according to the present invention, wherein the first driving mechanism is used to translate or turn over the inner bottom plate of the charging chamber, so that the battery falls into the liquid tank directly below the inner bottom plate;

Alternatively, the inner bottom plate of the charging chamber is set as a double-door type, and the second driving mechanism is used to open the double-door type inner bottom plate downward.

The method for handling abnormal battery charging in the charging cabinet according to the present invention, wherein the front end of the charging chamber for battery charging is open; the liquid tank is arranged on the outer surface of the charging cabinet and is located at the directly below the opening;

The method of changing the position of the battery so that it enters the liquid tank equipped with fire extinguishing liquid on the charging cabinet is: using a pushing mechanism to push the battery out of the charging chamber so that the battery falls into the liquid tank.

A charging cabinet, according to the above-mentioned method for handling abnormal battery charging in the charging cabinet, which includes a cabinet body, and the cabinet body is provided with one or more charging chambers for charging the battery, and a fire alarm for monitoring the battery charging fire state monitor; the cabinet is provided with a liquid tank loaded with fire extinguishing fluid; the liquid tank is provided at the inner bottom of the cabinet, between the charging chamber for charging the battery and the front side panel of the cabinet There is a gap for the battery to drop, and the gap communicates with the inside of the liquid tank; the inner bottom plate of the charging chamber can be vertically turned over; the cabinet is also provided with a turning motor or an electromagnetic mechanism.

The charging cabinet of the present invention, wherein, the movable end of the turning motor is fixedly connected to the middle or rear end of the inner bottom plate.

The charging cabinet of the present invention, wherein, the inner bottom plate is provided with a pushing cylinder for pushing the battery toward the gap.

The beneficial effects of the present invention are: monitor the fire of the battery being charged in the charging cabinet, and when the battery is detected to be on fire or tend to catch fire, change the position of the battery so that it enters the liquid tank equipped with fire extinguishing fluid on the charging cabinet, and Part or all of it is submerged under the liquid surface of the fire extinguishing fluid; in this way, the charging battery that has caught fire or has a sign of fire can be put into the liquid tank at the first time and soaked in the fire extinguishing fluid without being on duty , to reduce the loss caused by battery fire.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the drawings and embodiments. The drawings in the following description are only part of the embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings without paying creative work:

Fig. 1 is a flow chart of a method for handling abnormal charging of a battery in a charging cabinet according to Embodiment 1 of the present invention;

Fig. 2 is a cross-sectional side view of the structure of the charging cabinet according to the method for handling abnormal charging of batteries in the charging cabinet according to Embodiment 2 of the present invention;

Fig. 3 is a schematic diagram of the structure of the charging cabinet when the battery is moved by the method for handling the abnormal charging of the battery in the charging cabinet according to the second embodiment of the present invention;

4 is a schematic structural diagram of the charging cabinet according to the method for handling abnormal charging of batteries in the charging cabinet according to Embodiment 3 of the present invention;

5 is a schematic diagram of the structure of the charging chamber and the liquid tank of the method for handling abnormal charging of batteries in the charging cabinet according to Embodiment 4 of the present invention;

6 is a schematic diagram of the downward deflection structure of the inner bottom plate of the charging chamber according to the method for handling abnormal charging of batteries in the charging cabinet according to Embodiment 4 of the present invention;

Fig. 7 is a schematic diagram of the lateral movement structure of the inner bottom plate of the charging chamber according to the method for handling the abnormal charging of the battery in the charging cabinet according to the fourth embodiment of the present invention;

Fig. 8 is a schematic diagram of the structure of double doors on the inner floor of the charging chamber according to the method for handling abnormal charging of batteries in the charging cabinet according to Embodiment 5 of the present invention;

9 is a cross-sectional side view of the structure of the charging cabinet according to the method for handling abnormal charging of batteries in the charging cabinet according to Embodiment 6 of the present invention;

Fig. 10 is a schematic structural diagram of a charging cabinet according to Embodiment 7 of the present invention;

Fig. 11 is a schematic diagram of battery sliding in the charging cabinet according to Embodiment 7 of the present invention;

Fig. 12 is a schematic diagram of the connection structure between the turning motor of the charging cabinet and the inner bottom plate according to the seventh embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be made below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, and Not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

The method for handling the abnormal charging of the battery in the charging cabinet according to the preferred embodiment of the present invention is shown in Figure 1, and its implementation method is as follows:

S01: Monitor the fire of the charging battery in the charging cabinet;

S02: When it is detected that the battery is on fire or has a tendency to catch fire, change the position of the battery so that it enters the liquid tank equipped with fire extinguishing liquid on the charging cabinet, and submerges part or all of it under the liquid surface of the fire extinguishing liquid;

In this way, the charging battery that has caught fire or has a sign of fire can be put into the liquid tank at the first time without being on duty, and soaked in the fire extinguishing liquid, so as to reduce the damage caused by the battery fire to the entire charging cabinet. scrap loss;

It should be noted that the means used to change the position of the battery can be various, such as using existing moving mechanisms such as manipulators, fireproof conveyor belts, pushing cylinders, etc., or using The method can realize the change of the position of the battery, which also belongs to the scope of protection of this application; the fire extinguishing liquid can be water, a mixture of water or additives, or other existing fire extinguishing liquids;

In addition, for the fire monitoring of the battery, when the temperature of the battery rises abnormally and exceeds a set threshold, it is determined that the battery has a sign of fire; when the battery smokes, it is also judged that the battery has a sign of fire; in addition , when the battery just started to catch fire, monitoring the state and taking timely measures as in the second step can also achieve the purpose of avoiding the burning of the entire charging cabinet, but in contrast, when the battery has a sign of fire. Taking measures will be more reliable;

Preferably, a layer of anti-evaporation layer is arranged on the surface of the fire extinguishing liquid; the anti-evaporation layer can adopt existing non-flammable floating water materials such as transformer oil;

Preferably, the fire monitoring includes one or more of battery surface temperature monitoring, smoke monitoring in the charging chamber, carbon dioxide concentration monitoring in the charging chamber, and oxygen concentration monitoring in the charging chamber; based on the state of different stages when the lithium battery catches fire : First, the battery will have abnormal heating, then smoke, and finally an open flame; correspondingly, the battery surface temperature monitoring, the smoke monitoring in the charging chamber, and the concentration monitoring of oxygen, carbon dioxide and other gases in the charging chamber are used to monitor the fire of the battery. Of course, it can also be other existing lithium battery fire monitoring methods.

Embodiment two

This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated, as shown in Figure 2 and Figure 3, the difference is that the liquid tank 2 is arranged at the inner bottom of the charging cabinet 1, and the charging chamber for charging the battery There is a gap 4 between 3 and the front side plate of the charging cabinet 1 for the battery to drop, and the gap 4 communicates with the inside of the liquid tank 2;

The way to change the position of the battery 5 so that it enters the liquid tank 2 equipped with fire extinguishing fluid on the charging cabinet 1 is to make the battery 5 move from the charging chamber 3 to the gap 4, and fall into the liquid tank 2 from the gap 4 More specifically, by turning over the inner bottom plate 30 of the charging chamber 3, the battery 5 slides toward the gap 4, and the battery 5 falls into the liquid tank 2 through the gap 4;

FIG. 3 is a schematic diagram of the deflection of the inner bottom plate 30 when the uppermost battery is abnormal;

The deflection mode of the inner bottom plate 30 may be driven by a stepping motor, or other existing controllable deflection modes.

Embodiment Three

This embodiment is basically the same as Embodiment 2, and the similarities will not be repeated. As shown in FIG. In the liquid tank 2; the traversing mechanism 6 can adopt electric push rods, cylinders or the like.

It should be noted that the two methods in Embodiment 2 and Embodiment 3 can be used in combination, that is, the inner bottom plate is used for deflection and the lateral movement mechanism is used to provide thrust. It should be noted that when used in combination, the lateral movement The moving mechanism shall be arranged on the inner bottom plate.

Embodiment Four

This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. As shown in Figure 5-7, the difference is that the liquid tank 2 is arranged directly below the charging chamber 3 for charging the battery 5, and the liquid The slot 2 and the charging chamber 3 are set in one-to-one correspondence; the battery 5 is charged with a contact connector or disconnected from the power supply when the battery is on fire or has a tendency to catch fire in the second step;

The way to change the position of the battery so that it enters the liquid tank equipped with fire extinguishing liquid on the charging cabinet is: open the inner bottom plate 30 of the charging chamber 3, so that the battery 5 falls into the liquid tank 2 located directly below the inner bottom plate 30; More specifically: the first driving mechanism is used to translate or turn over the inner bottom plate 30 of the charging chamber 3, so that the battery 5 falls into the liquid tank 2 directly below the inner bottom plate 30;

Wherein, when the method of driving the inner bottom plate to deflect downward is adopted, the first driving mechanism may use an existing deflection driving mechanism such as a motor;

When the method of driving the inner bottom plate to move laterally is adopted, the first driving mechanism can adopt the existing lateral movement driving mechanism such as air cylinder and electric pull rod;

Embodiment five

This embodiment is basically the same as Embodiment 4, and the similarities will not be repeated. As shown in FIG. Open the inner bottom panel 30 of the double-door type.

Embodiment six

This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. As shown in Figure 9, the difference is that: the front end of the charging chamber 3 for charging the battery 5 is open; and is located directly below the opening of the charging chamber 3; the way to change the position of the battery 5 so that it enters the liquid tank 2 equipped with fire extinguishing fluid on the charging cabinet 1 is: use the push mechanism 7 to push the battery 5 is pushed out of the charging chamber 3, so that the battery 5 falls into the liquid tank 2; the pushing mechanism 7 can be a cylinder, an electric push rod, etc.

Embodiment seven

A charging cabinet, according to the above-mentioned method for handling abnormal charging of batteries in the charging cabinet, as shown in Figure 10-12, includes a cabinet body 1, and one or more charging chambers 3 for charging batteries 5 are arranged on the cabinet body 1, and a fire detector (not shown) for monitoring battery 5 charging and fire state; cabinet 1 is provided with liquid tank 2 loaded with fire extinguishing fluid; liquid tank 2 is arranged on the inner bottom of cabinet 1, for battery 5 There is a gap 4 between the charging chamber 3 and the front side plate of the cabinet body 1 for the battery 5 to drop, and the gap 4 communicates with the inside of the liquid tank 2; the inner bottom plate 30 of the charging chamber 3 can be vertically turned over; the cabinet body 1 There is also a turning motor 8 that drives the inner bottom plate 30 to turn over;

When the fire detector detects that the battery is on fire or there is a sign of fire, it sends an electrical signal to the controller of the overturning motor, controls the overturning motor 8 to drive the inner bottom plate 30 to overturn, and the battery 5 slides down by its own weight and falls into the liquid after passing through the gap 4. In the fire extinguishing liquid in tank 2, the purpose of automatic protection can be achieved, the entire charging cabinet can be prevented from being burned by fire, and the loss can be reduced;

The fire extinguishing fluid can be water, a mixture of water or additives, or other existing fire extinguishing fluids;

For the fire monitoring of the battery, when the temperature of the battery rises abnormally and exceeds a set threshold, it is determined that the battery has a sign of fire; when the battery smokes, it is also judged that the battery has a sign of fire; When the battery first catches fire, monitoring the state and taking timely measures as in the second step can also achieve the purpose of avoiding the burning of the entire charging cabinet, but in contrast, taking measures when the battery has a sign of fire , will be more reliable;

Preferably, the fire monitoring includes one or more of battery surface temperature monitoring, smoke monitoring in the charging chamber, carbon dioxide concentration monitoring in the charging chamber, and oxygen concentration monitoring in the charging chamber; based on the state of different stages when the lithium battery catches fire : First, the battery will have abnormal heating, then smoke, and finally an open flame; correspondingly, the battery surface temperature monitoring, the smoke monitoring in the charging chamber, and the concentration monitoring of oxygen, carbon dioxide and other gases in the charging chamber are used to monitor the fire of the battery. Of course, it can also be other existing lithium battery fire monitoring methods.

Preferably, the movable end of the turning motor 8 is fixedly connected to the middle or rear end of the inner bottom plate 30 .

Preferably, the inner bottom plate 30 is provided with a push cylinder 9 that pushes the battery 5 toward the gap 4; on the basis of the battery sliding down by its own weight, the push cylinder provides another thrust to further accelerate the falling process of the battery 5; especially for, The charging plug and the charging socket are used to charge the battery. This method can ensure that the battery is stably detached from the charging plug in the charging chamber; of course, since the weight of the battery generally exceeds 5kg, its weight is enough to detach from the charging plug when it slides down. , increasing and promoting cylinder 9 is a kind of auxiliary insurance means.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims (10)

1. battery charging abnormality eliminating method in a kind of charging cabinet, which is characterized in that implementation method is as follows:

Step 1: having carried out thermal monitoring to the battery in charging cabinet in charging；

Step 2: when monitoring battery catches fire or having trend on fire, the position for changing battery makes it into be arranged on charging cabinet In liquid bath equipped with extinguishing fluid, and it is partially or totally submerged under extinguishing fluid liquid level.

2. battery charging abnormality eliminating method in charging cabinet according to claim 1, which is characterized in that described thermal monitoring Including to battery surface temperature monitoring, to charging chamber in smoke monitoring, to charging chamber in gas concentration lwevel monitoring and it is right It is one or more in oxygen concentration monitoring in charging chamber.

3. battery charging abnormality eliminating method in charging cabinet according to claim 1, which is characterized in that the liquid bath setting In the interior bottom of the charging cabinet, fallen for existing between charging chamber and the front side board of the charging cabinet of battery charging for battery Under gap, which is connected to the inside of the liquid bath；

The position for changing battery makes it into the mode in the liquid bath equipped with extinguishing fluid being arranged on charging cabinet are as follows: so that electricity Pond is moved to the gap by the charging chamber, and is fallen into the liquid bath by the gap.

4. battery charging abnormality eliminating method in charging cabinet according to claim 3, which is characterized in that by described in overturning The inner bottom plating of charging chamber, so that battery is slided towards the gap, battery is fallen into the liquid bath via the gap；

Or battery is driven to slide towards the gap using transverse-moving mechanism, so that battery falls into the liquid via the gap In slot.

5. battery charging abnormality eliminating method in charging cabinet according to claim 1, which is characterized in that the liquid bath setting In the underface of the charging chamber to charge for battery, and liquid bath is closely arranged with charging chamber one-to-one correspondence；Battery is filled Electricity is disconnected using contact connector or when monitoring battery catches fire in the second step or having trend on fire to it For electrical connection；

The position for changing battery makes it into the mode in the liquid bath equipped with extinguishing fluid being arranged on charging cabinet are as follows: opens institute The inner bottom plating for stating charging chamber, so that battery is fallen into the liquid bath immediately below the inner bottom plating.

6. battery charging abnormality eliminating method in charging cabinet according to claim 5, which is characterized in that using the first driving Mechanism translates or overturns the inner bottom plating of the charging chamber, so that battery is fallen into the liquid bath immediately below the inner bottom plating；

Or the inner bottom plating of the charging chamber is arranged to double-door type, double-door type is opened downwards using the second driving mechanism Inner bottom plating.

7. battery charging abnormality eliminating method in charging cabinet according to claim 1, which is characterized in that for battery charging The chamber front end opening that charges setting；The outer surface of the charging cabinet is arranged in the liquid bath, and is located at the charging chamber Open underface；

The position for changing battery makes it into the mode in the liquid bath equipped with extinguishing fluid being arranged on charging cabinet are as follows: uses and pushes away Battery is released the charging chamber by motivation structure, so that battery is fallen into the liquid bath.

8. a kind of charging cabinet, battery charges abnormality eliminating method in -7 any charging cabinets according to claim 1, feature It is, including cabinet body, one or more charging chambers for battery charging is provided on the cabinet body, and monitoring battery charges The monitor on fire of fiery state；The liquid bath for being mounted with extinguishing fluid is provided on the cabinet body；The liquid bath is arranged in the cabinet body Interior bottom, between charging chamber and the front side board of the cabinet body of battery charging in the presence of the gap that is fallen for battery, the sky Gap is connected to the inside of the liquid bath；The inner bottom plating of the charging chamber can longitudinally overturn setting；It is additionally provided on the cabinet body Drive the overturning motor or electromagnetic mechanism of the inner bottom plating overturning.

9. charging cabinet according to claim 8, which is characterized in that in the movable end and the inner bottom plating of the overturning motor Between or rear end be fixedly connected.

10. charging cabinet according to claim 8, which is characterized in that be provided on the inner bottom plating towards the gap and pushed The pusher cylinder of battery.