CN220615545U

CN220615545U - Safe storage cabinet that charges of lithium ion battery

Info

Publication number: CN220615545U
Application number: CN202322322302.8U
Authority: CN
Inventors: 姚华民; 张传甲
Original assignee: Vkan Certification And Testing Co ltd
Current assignee: Vkan Certification And Testing Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-19
Anticipated expiration: 2033-08-28

Abstract

The utility model discloses a safe charging storage cabinet for a lithium ion storage battery, which comprises a cabinet body, wherein a water tank and a plurality of battery bins are arranged at the bottom of the cabinet body, a charging unit for charging the lithium ion storage battery is respectively arranged in each battery bin, a supporting plate is arranged at the bottom surface of each battery bin, the front edge of each supporting plate is hinged, the supporting plate can rotate up and down, a rear partition plate is arranged at the rear of each battery bin, the upper edge of each rear partition plate is hinged, the rear partition plate can rotate back and forth, a transverse rear fixing rod is arranged below each supporting plate and at the upper part of the uppermost battery bin, and the rear end of each supporting plate is hung on the rear fixing rod through a first thermal fuse; the rear of the battery bin is provided with a battery sliding space, the upper surface of the water tank is provided with a falling inlet for the lithium ion storage battery to fall into the water tank, and the falling inlet corresponds to the battery sliding space. The utility model can isolate the lithium ion storage battery which catches fire abnormally under the condition of completely cutting off the power supply, and has higher safety.

Description

Safe storage cabinet that charges of lithium ion battery

Technical Field

The utility model relates to the technical field of safe charging of storage batteries, in particular to a safe charging storage cabinet of a lithium ion storage battery.

Background

The lithium ion storage battery has high energy density, is inflammable and explosive, has short starting time in a thermal runaway state, is violent in reaction and is easy to produce chain reaction. Along with the rapid development of three-wheel/two-wheel electric vehicles, a charging storage cabinet for storing and charging a lithium ion storage battery is also rapidly developed, and the charging storage cabinet can facilitate the three-wheel/two-wheel electric vehicles to change electricity in time.

The storage and the charging of the lithium ion storage battery in the charging storage cabinet are generally unattended, when an abnormality or an emergency occurs, a processor cannot process the lithium ion storage battery in time, and the processing process has a high danger to the processor.

The existing charging storage cabinet is generally only provided with a basic fire extinguishing device, and can not timely isolate an abnormal lithium ion storage battery, so that chain reaction during out-of-control is eliminated. When the lithium ion storage battery is abnormal or the emergency is on fire, the lithium ion storage batteries in other battery bins can be influenced rapidly, so that the other lithium ion storage batteries are also on fire, the condition of the charging storage cabinet is deteriorated rapidly, and the danger is increased. In addition, current charging cabinets require the use of power sources for the handling of exceptions or emergencies, which are not completely cut off, which increases the risk of electric shock to the handling personnel.

Disclosure of Invention

The utility model aims to provide a safe charging storage cabinet for a lithium ion storage battery, which can isolate and cool the lithium ion storage battery with abnormal ignition and has higher safety.

The aim of the utility model is achieved by the following technical scheme:

the utility model provides a safe storage cabinet that charges of lithium ion battery which characterized in that: the lithium ion battery charging device comprises a cabinet body, wherein a water tank positioned at the bottom and a plurality of battery bins positioned at the upper part are arranged in the cabinet body, a charging unit for charging a lithium ion battery is respectively arranged in each battery bin, a supporting plate is arranged on the bottom surface of each battery bin, the front edge of the supporting plate is hinged, so that the supporting plate can rotate up and down, a rear partition plate is arranged at the rear of each battery bin, the upper edge of the rear partition plate is hinged, so that the rear partition plate can rotate back and forth, a transverse rear fixing rod is arranged below each supporting plate and at the upper part of the uppermost battery bin, and the rear end of the supporting plate is hung on the rear fixing rod through a first thermal fuse; the rear of the battery bin is provided with a battery sliding space, the upper surface of the water tank is provided with a falling inlet for the lithium ion storage battery to fall into the water tank, and the falling inlet corresponds to the battery sliding space.

Preferably, the safe charging storage cabinet of the lithium ion storage battery further comprises a smoke discharge device, the smoke discharge device is provided with a smoke discharge pipe, the lower end of the smoke discharge pipe is communicated with the upper portion of the water tank, and the smoke discharge pipe extends to the upper portion of the cabinet body.

Preferably, the falling opening is hinged with a cover plate through a spring door, the cover plate can be turned up and down, and the cover plate is kept to be covered on the falling opening through a spring.

Preferably, the battery bins are arranged in a matrix, the upper and lower adjacent battery bins are separated by the supporting plate, and the upper edges of the rear partition plates of the rest battery bins are hinged with the rear edges of the supporting plate except for the uppermost battery bin.

Preferably, the lower edge of the rear partition plate is provided with a guide edge which is tilted backwards, and the guide edge corresponds to the rear edge of the supporting plate.

Preferably, the charging unit includes a socket for supplying power for charging the lithium ion secondary battery and a plug ejection device for ejecting a plug connected to the socket.

Preferably, the plug ejecting device is provided with an upper mounting seat, a lower mounting seat, a spring, a hammer and a second thermal fuse, the upper mounting seat and the lower mounting seat are fixedly mounted above the socket, the upper mounting seat and the lower mounting seat are vertically corresponding, the hammer is slidably penetrated into sliding holes of the upper mounting seat and the lower mounting seat, the lower end of the hammer is aligned with the plug connecting position, a shaft shoulder is arranged on the hammer, the spring is sleeved on the hammer, the spring is compressed between the upper surface of the shaft shoulder and the lower surface of the upper mounting seat, the second thermal fuse is connected with the upper end of the hammer, and the hammer is lifted upwards through the second thermal fuse.

Preferably, the second thermal fuse sequentially bypasses the guide post and the rear fixing rod above the upper mounting seat and is connected with the bottom of the battery compartment.

Preferably, the front side of the battery compartment is provided with a front fixing rod, and the front side of the supporting plate is hinged with the front fixing rod.

Preferably, the lithium ion storage battery safe charging storage cabinet further comprises a fire extinguishing device.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the lithium ion storage battery on fire in the battery bin is fed into the water tank by fusing the first thermal fuse, and the lithium ion storage battery is timely isolated and cooled by the water tank, so that the chain reaction can be eliminated, the influence on the lithium ion storage battery normally used in other battery bins can be avoided, the danger can be timely controlled, and if explosion occurs, the impact of the explosion can be reduced.

The first thermal fuse of the utility model is fused without using a power supply, so that when the lithium ion storage battery is abnormal, the ignited lithium ion storage battery can be sent into the water tank for isolation even if the power supply is completely cut off.

The utility model can independently send the lithium ion storage battery with abnormal ignition into the water tank for isolation and cooling, and can not send other normal lithium ion storage batteries into the water tank at the same time.

Drawings

FIG. 1 is a schematic perspective view of a hidden door of a safe charging storage cabinet for lithium ion batteries;

FIG. 2 is a schematic cross-sectional view of a lithium ion battery safe charge storage bin of the present utility model;

FIG. 3 is a schematic view of the structure of one column of battery compartments of the present utility model;

FIG. 4 is a schematic view of the structure of the present utility model at one of the battery compartments;

FIG. 5 is a schematic diagram of the safe charging storage cabinet of the lithium ion storage battery in the utility model in use, wherein the lithium ion storage battery in the penultimate battery compartment falls into the water tank when abnormal ignition occurs;

fig. 6 is a schematic diagram of an auto-power-off module.

The meaning of the reference numerals in the figures:

1-a cabinet body; 1.1-top plate; 2-a water tank; 3-a battery compartment; 4-socket; 5-a rear partition; 5.1-guiding edges; 6-a first thermal fuse; 7-supporting plates; 8-plug ejection means; 8.1-lower mounting seats; 8.2-springs; 8.3-hammering; 8.4-upper mounting base; 8.5-a second thermal fuse; 9-a front fixing rod; 10-a middle separator; 11-water; 12-cover plate; 13-battery slip space; 14-a rear fixing rod; 15-bin gate; 16-lithium ion battery; 17-smoke exhaust pipe.

Detailed Description

The utility model is further described below with reference to examples.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Examples:

fig. 1 to 4 show a safe charging storage cabinet for lithium ion storage batteries of the embodiment, which comprises a cabinet body 1.

Be equipped with water tank 2 and a plurality of battery compartment 3 in the cabinet body 1, water tank 2 is located the bottom of cabinet body 1, is equipped with water 11 in the water tank 1 during the use, and the degree of depth of water 11 is enough to submerge lithium ion battery completely, and certainly, water tank 2 can set up the structure of conventional water tanks such as water adding channel and drainage channel, ensures water level, water volume and temperature in suitable interval through automatic moisturizing or artifical moisturizing mode, when the temperature is too high, should take a large amount of moisturizing cooling schemes.

The battery bins 3 are arranged at the upper part of the cabinet body 1 and above the water tank 2, the battery bins 3 are arranged in a matrix, and the battery bins 3 in adjacent columns are separated by the middle partition plates 10. The front of the battery compartment 3 is provided with a compartment door 15, the structure of the compartment door 15 adopts a conventional structure, the compartment door 15 can be provided with a door lock, and the compartment door is locked through the door lock, so that the storage and the taking of the lithium ion storage battery are facilitated.

Each battery compartment 3 is respectively provided with a charging unit, and the lithium ion storage battery placed in the battery compartment 3 is charged by being connected with the charging unit.

The front side of the battery compartment 3 is provided with a front fixing rod 9, the bottom surface of the battery compartment 3 is provided with a supporting plate 7, and the front side of the supporting plate 7 is hinged with the front fixing rod 9 through a conventional structure, so that the supporting plate 7 can rotate up and down, and the upper and lower adjacent battery compartments 3 are separated through the supporting plate 7.

The rear baffle 5 is arranged at the rear of the battery compartment 3, and the upper edge of the rear baffle 5 is hinged, so that the rear baffle 5 can rotate back and forth, and the lithium ion storage battery can collide with the rear baffle 5 at the rear of the battery compartment 3. Wherein, except the uppermost battery compartment, the upper edge of the rear partition plate 5 of the rest battery compartments is hinged with the rear edge of the supporting plate 7, and the upper edge of the rear partition plate 5 of the uppermost battery compartment is hinged with the top plate 1.1 of the cabinet body. The rear partition 5 hinged to the pallet 7 will be able to move up and down with the rotation of the pallet 7. In this embodiment, the lower edge of the rear partition plate 5 is provided with a guide edge 5.1 tilted backward, and the guide edge 5.1 corresponds to the rear edge of the supporting plate 7, so that the rear partition plate 5 can smoothly move up and down without being blocked at the rear edge of the supporting plate 7.

The lower part of each supporting plate 7 and the upper part of the uppermost battery compartment 3 are respectively provided with a transverse rear fixing rod 14, the rear end of the supporting plate 7 is hung on the rear fixing rod 14 through the first thermal fuse 6, and the supporting plate 7 is kept in a horizontal state and does not incline backwards during normal use, and the lithium ion storage battery can be stably prevented from being arranged on the supporting plate 7. The first thermal fuse 6 is a conventional metal alloy filament or polymer alloy filament that fuses at high temperatures and has sufficient strength to support the weight of the lithium ion battery. As shown in fig. 5, when the lithium ion secondary battery in the battery compartment 3 catches fire, the first thermal fuse 6 will be fused, at this time, the supporting plate 7 will turn down until the lower face of the supporting plate 7 abuts against the rear fixing rod 14, after the supporting plate 7 is inclined, the lithium ion secondary battery 16 above it will slide backward and push the rear partition 5 away, and slide out to the rear of the battery compartment 3.

In this embodiment, the first thermal fuses 6 are respectively arranged at two side edges of the battery compartment 3, so that the supporting plate 7 can be pulled more stably.

The rear of the battery compartment 3 is provided with a battery sliding space 13, a falling inlet for the lithium ion storage battery to fall into the water tank is arranged on the water tank 2, the falling inlet corresponds to the position of the battery sliding space 13, and the lithium ion storage battery 16 sliding out to the rear of the battery compartment 3 falls downwards from the battery sliding space 13 and enters the water tank 2 through the falling inlet.

In this embodiment, the cover plate 12 is hinged at the drop port through a spring door, the cover plate 12 can be turned upside down, and the cover plate 12 is kept covered on the drop port through a spring. The provision of the spring door hinge employs a conventional door structure so that the cover plate 12 remains normally closed, the normally closed cover plate 12 minimizing evaporation of water. The lithium ion storage battery 16 falling from the battery sliding space 13 falls into the water tank 2 from the cover plate 12, the cover plate 12 is restored to the closed state after the lithium ion storage battery 16 falls into the water tank 2, and the closed cover plate 12 can block smoke in the water tank 2, so that the smoke diffusion is avoided, the risk of personnel poisoning is reduced, and the environmental pollution is reduced. The closed cover 12 also better blocks the spread of injuries if the lithium ion battery 16 explodes, etc. When the lithium ion battery 16 dropped into the water tank 2 releases energy, the generated air pressure can push the cover plate 12 upwards to release high-pressure air.

The safe storage cabinet that charges of lithium ion battery of this embodiment still includes smog discharging equipment, and smog discharging equipment is equipped with the pipe 17 of discharging fume, and the lower extreme of discharging fume pipe 17 communicates with the upper portion of water tank 2, and the pipe 17 of discharging fume extends to the top of cabinet body 1, and the pipe 17 of discharging fume is used for upwards discharging the smog in the water tank 2. In other embodiments, the smoke evacuation tube 17 may be connected to a conventional exhaust gas trapping device by which smoke evacuation can be reduced.

The charging unit of this embodiment includes socket 4 and plug pop-up device 8, and socket 4 fixed mounting is in the side of battery compartment 3, and socket 4 is connected with the power, and when lithium ion battery 16 needs to charge, lithium ion battery 16 will be connected with socket 4 through the plug, provides the power for lithium ion battery 16's charging through socket 4. A plug ejecting device 8 is installed at the socket 4 for ejecting the plug connected to the socket 4, i.e., separating the plug from the socket 4.

As shown in fig. 4, the plug ejecting device 8 of this embodiment is provided with an upper mounting seat 8.4, a lower mounting seat 8.1, a spring 8.2, a hammer 8.3 and a second thermal fuse 8.5, the upper mounting seat 8.4 and the lower mounting seat 8.1 are fixedly mounted above the socket 4, the upper mounting seat 8.4 and the lower mounting seat 8.1 are vertically corresponding, and vertical sliding holes are respectively provided on the upper mounting seat 8.4 and the lower mounting seat 8.1. The hammer 8.3 is cylindrical, the hammer 8.3 is slidably inserted into the sliding holes of the upper mounting seat 8.4 and the lower mounting seat 8.1, the lower end of the hammer 8.3 is aligned with the plug connection position, the hammer 8.3 is provided with a shaft shoulder, the shaft shoulder is positioned below the upper mounting seat 8.4, the spring 8.2 is sleeved on the hammer 8.3, the spring 8.2 is compressed between the upper surface of the shaft shoulder and the lower surface of the upper mounting seat 8.4, the second thermal fuse 8.5 is connected with the upper end of the hammer 8.3, and the hammer 8.3 is lifted upwards through the second thermal fuse 8.5. When abnormal ignition occurs in the lithium ion storage battery 16 in the battery compartment 3, the second thermal fuse 8.5 is fused, and at the moment, the hammer 8.3 is ejected downwards under the action of the spring 8.2 and hits the plug, so that the plug is separated from the socket 4. The second thermal fuse 8.5 is also a conventional metal alloy filament or polymer alloy filament which fuses at high temperatures, as is the first thermal fuse 6.

Wherein the second thermal fuse 8.5 sequentially bypasses the guide post and the rear fixing rod 14 above the upper mounting seat 8.4 and is connected with the bottom of the battery compartment 3.

Other conventional means for automatically ejecting the plug from the socket may also be employed for the plug ejecting device 4, as long as the automatic separation is achieved.

The safe storage cabinet that charges of lithium ion battery of this embodiment still includes extinguishing device, and extinguishing device adopts conventional device, can put out the fire open.

The use process of the safe charging storage cabinet of the lithium ion storage battery of the embodiment is as follows:

in use, the lithium ion battery 16 is placed in the battery compartment 3 and connected to the socket 4 by a plug for charging. As shown in fig. 5, when an abnormal fire occurs in a certain lithium ion storage battery 16, the first thermal fuse 6 is fused, so that the supporting plate 7 rotates downwards to incline, the lithium ion storage battery 16 on the supporting plate 7 slides backwards, then pushes away the rear partition plate 5, slides to the rear of the battery compartment 3, falls into the water tank 2 after passing through the battery sliding space 13 and the falling inlet, and is immersed into water 11 in the water tank 2 to form isolation; at the same time, the second thermal fuse 8.5 will be fused and the plug connected to the socket 4 will be kicked out by the hammer 8.3.

For the charging unit, protection modules such as an overvoltage protection module, an overcurrent module, a temperature protection module, an automatic power-off module and the like are also arranged, and safer charging is realized through the protection modules. When the voltage and the current are abnormal or the temperature is abnormal, the automatic power-off module is activated, and the power supply is cut off through the automatic power-off module. The automatic power-off module comprises functions of abnormal power-off, timing power-off, full power-off and the like.

The safe storage cabinet that charges of lithium ion battery of this embodiment can also set up sensor, pronunciation siren, light siren, warning information send module, network dress module etc.. The sensor comprises a temperature sensor, a smoke sensor, a voltage sensor, a current sensor, a liquid sensor, a humidity sensor and the like, when the data range monitored by the sensor exceeds a threshold value, sound and light are emitted, message early warning information is emitted, the voice alarm and the light alarm emit sound or light to remind nearby personnel, and the warning information emitting device and the network device are used for remotely emitting warning information to related personnel under abnormal conditions.

The above-mentioned embodiments of the present utility model are not intended to limit the scope of the present utility model, and the embodiments of the present utility model are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present utility model according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present utility model shall fall within the scope of the present utility model.

Claims

1. The utility model provides a safe storage cabinet that charges of lithium ion battery which characterized in that: the lithium ion battery charging cabinet comprises a cabinet body, wherein a water tank positioned at the bottom and a plurality of battery bins positioned at the upper part are arranged in the cabinet body, a charging unit for charging a lithium ion battery is respectively arranged in each battery bin, a supporting plate is arranged on the bottom surface of each battery bin, the front edge of the supporting plate is hinged, so that the supporting plate can rotate up and down, a rear partition plate is arranged at the rear of each battery bin, the upper edge of the rear partition plate is hinged, so that the rear partition plate can rotate back and forth, a transverse rear fixing rod is arranged below each supporting plate and on the upper part of the uppermost battery bin, and the rear end of the supporting plate is hung on the rear fixing rod through a first thermal fuse; the rear of the battery compartment is provided with a battery sliding space, the upper surface of the water tank is provided with a falling inlet for the lithium ion storage battery to fall into the water tank, and the falling inlet corresponds to the battery sliding space.

2. The lithium ion battery safe charge storage cabinet of claim 1, wherein: the safe storage cabinet that charges of lithium ion battery still includes smog discharging equipment, smog discharging equipment is equipped with the exhaust pipe, the lower extreme of exhaust pipe with the upper portion intercommunication of water tank, exhaust pipe extends to the top of the cabinet body.

3. The lithium ion battery safe charge storage cabinet of claim 1, wherein: the falling opening is connected with a cover plate through a spring door hinge, the cover plate can be turned up and down, and the cover plate is kept to be covered on the falling opening through a spring.

4. The lithium ion battery safe charge storage cabinet of claim 1, wherein: the battery bins are arranged in a matrix, the upper side and the lower side of the battery bins are separated by the supporting plate, and the upper sides of the rear partition plates of the rest battery bins are hinged with the rear sides of the supporting plate except for the uppermost battery bin.

5. The lithium ion battery safe charge storage cabinet of claim 4, wherein: the lower edge of the rear partition plate is provided with a guide edge which is tilted backwards, and the guide edge corresponds to the rear edge of the supporting plate.

6. The lithium ion battery safe charge storage cabinet of claim 1, wherein: the charging unit comprises a socket and a plug ejecting device, wherein the socket is used for supplying power for charging the lithium ion storage battery, and the plug ejecting device is used for ejecting a plug connected to the socket.

7. The lithium ion battery safe charge storage cabinet of claim 6, wherein: the plug ejecting device is provided with an upper mounting seat, a lower mounting seat, a spring, a hammer and a second thermal fuse, wherein the upper mounting seat and the lower mounting seat are fixedly arranged above the socket, the upper mounting seat and the lower mounting seat are vertically corresponding, the hammer is slidably penetrated into sliding holes of the upper mounting seat and the lower mounting seat, the lower end of the hammer is opposite to the plug connecting position, the hammer is provided with a shaft shoulder, the spring is sleeved on the hammer, the spring is compressed between the upper surface of the shaft shoulder and the lower surface of the upper mounting seat, and the second thermal fuse is connected with the upper end of the hammer and is upwards lifted by the second thermal fuse.

8. The lithium ion battery safe charge storage cabinet of claim 7, wherein: the second thermal fuse wire sequentially bypasses the guide post and the rear fixing rod on the upper mounting seat and is connected with the bottom of the battery bin.

9. The lithium ion battery safe charge storage cabinet of claim 1, wherein: the front side of the battery compartment is provided with a front fixing rod, and the front side of the supporting plate is hinged with the front fixing rod.

10. The lithium ion battery safe charge storage cabinet of claim 1, wherein: the lithium ion storage battery safe charging storage cabinet further comprises a fire extinguishing device.