Shared charging cabinet

Abstract

The utility model relates to a shared charging cabinet which comprises a cabinet body. A plurality of battery charging units are arranged in the cabinet body; the battery charging unit comprises a charging bin and a fire extinguishing module; the fire extinguishing module comprises a first spraying assembly for active fire extinguishing and a second spraying assembly for passive fire extinguishing; the shared charging cabinet is ingenious in design, and a dual protection mechanism is provided for the charging bin through active spraying fire extinguishing of the first spraying assembly and passive spraying fire extinguishing of the second spraying assembly. Active spraying and passive spraying can be selected according to the actual situation and the fire behavior, so that the strategy for coping with the fire is more flexible and effective; the first spraying assembly performs active spraying, so that intervention can be performed when a fire just occurs, occurrence of a fire disaster can be prevented in advance, and damage to the battery and the cabinet body caused by the fire disaster is reduced; and the second spraying assembly, namely passive spraying, is automatically started when the fire behavior is large or the temperature reaches a preset value, so that the overall safety protection level is improved, the effect is effectively exerted, and the safety of the battery is ensured.

Description

Technical Field

[0001] The utility model relates to a shared charging cabinet. Background Art

[0002] A battery charging cabinet is a device designed to provide a safe charging environment for batteries. It typically includes a charging module, battery storage area, management system, and safety protection measures. Since electric vehicle batteries can overheat or short-circuit during charging, potentially causing a fire, it is crucial to have a fire extinguishing device inside the charging compartment.

[0003] Existing charging cabinets generally only have one passive fire extinguishing system, such as the circulating water immersion fire extinguishing charging cabinet disclosed in Patent No. CN202320148394.X. It includes a charging cabinet, a water tank, a water pump, and a water ingress detection device. The charging cabinet is equipped with multiple charging compartments, each of which is equipped with a charging device and a fire sprinkler. If a battery fire occurs while charging in the charging compartment and the temperature inside the charging compartment reaches the burst temperature of the fire sprinkler, the fire sprinkler in the charging compartment will burst, and water in the water tank will flow into the charging compartment through the burst fire sprinkler to extinguish the fire. However, this passive fire extinguishing system has a slow response time. The system will only activate fire extinguishing when the temperature inside the charging compartment reaches the preset warning temperature, which may take some time. During this time, the fire may have spread and the fire may not be extinguished in time. If a flame appears in the charging compartment but the temperature has not exceeded the critical temperature of the fire sprinkler, the system cannot take fire extinguishing measures at this time, and the best time to extinguish the fire may be missed. Therefore, relying solely on passive fire extinguishing is not a safe solution. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a shared charging cabinet in response to the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a shared charging cabinet, comprising a cabinet with a hollow chamber inside, characterized in that a plurality of battery charging units are longitudinally arranged in the hollow chamber; the battery charging unit comprises a charging compartment and a fire extinguishing module fixedly connected to the charging compartment; a charging cavity for placing batteries is provided in the charging compartment; an opening for inserting batteries into the charging cavity is provided at the front end of the charging compartment; the fire extinguishing module comprises a first spray assembly that actively extinguishes the fire of the batteries in the charging cavity and a second spray assembly that passively extinguishes the fire of the batteries in the charging cavity; the first spray assembly is used to actively intervene in fire extinguishing when a fire just occurs or the temperature rises abnormally; the second spray assembly is used to passively start when the fire is large or the temperature exceeds a preset value; a water supply system for supplying water to the first spray assembly and the second spray assembly is also provided in the cabinet; a plurality of charging cabinet doors corresponding to the battery charging units to open or close the openings are provided on the front side of the cabinet;

[0006] In the shared charging cabinet of the present invention, the first spray assembly includes a first nozzle fixedly connected to the first water outlet of the water supply system; the first nozzle is provided with a first spray port, a first plug adapted to the first spray port, a first glass column providing support for the first plug so that it blocks the first water outlet, and a heating assembly sleeved on the first glass column to trigger its fracture;

[0007] In the shared charging cabinet of the present invention, the second spray assembly includes a second nozzle fixedly connected to the second water outlet of the water supply system; the second nozzle is provided with a second spray port, a second plug adapted to the first spray port, and a second glass column providing support for the second plug so that it blocks the second water outlet;

[0008] In the shared charging cabinet of the present invention, the first spray assembly and the second spray assembly are arranged side by side above the battery;

[0009] The shared charging cabinet of the present invention, wherein the water supply system includes a water tank arranged above the battery charging unit on the top layer, and two fire main pipes arranged side by side and both connected to the water tank; one of the fire main pipes is provided with a plurality of first branch pipes corresponding to and connected to the first spray ports one by one, and the other fire main pipe is provided with a plurality of second branch pipes corresponding to and connected to the second spray ports one by one;

[0010] The shared charging cabinet of the present invention, wherein the fire extinguishing module further comprises a protective cover fixedly connected to the upper surface of the charging compartment; a receiving space is provided in the protective cover; a through hole is provided on the charging compartment within the coverage of the protective cover; the receiving space is connected to the charging chamber through the through hole; the first nozzle and the second nozzle are both located in the receiving space;

[0011] The shared charging cabinet of the present invention is provided with a plurality of pressure relief holes on the upper shell of the charging compartment, which are connected to the charging chamber;

[0012] The shared charging cabinet of the present invention has a plurality of guide strips extending along the battery movement track on the left and right side walls and the inner surface of the bottom plate of the charging compartment;

[0013] The shared charging cabinet of the present invention is provided with a plurality of heat dissipation modules on the cabinet body for cooling the charging compartment in the hollow cavity;

[0014] The shared charging cabinet of the present invention, wherein the heat dissipation module includes at least one heat dissipation hole provided on the cabinet body and communicating with the hollow chamber, and at least one heat dissipation fan provided in the hollow chamber and located on one side of the heat dissipation hole; the heat dissipation fan blows the hot air in the hollow chamber out of the cabinet body through the heat dissipation hole;

[0015] The shared charging cabinet described in the present invention is provided with a plurality of control modules and sensitive electrical components on one side of the battery charging unit in the cabinet, and a maintenance door is also provided on the back of the cabinet.

[0016] The beneficial effects of the present invention are as follows: the shared charging cabinet is cleverly designed, providing a dual protection mechanism for the charging compartment through the active spray fire extinguishing of the first spray component and the passive spray fire extinguishing of the second spray component. Active spraying and passive spraying can be selected according to the actual situation and the size of the fire, making the strategy for dealing with fire more flexible and effective; the first spray component, that is, the active spraying, can intervene as soon as the fire appears, which can prevent the occurrence of fire in advance and reduce the damage caused by the fire to the battery and the cabinet. The design of the active spraying fire extinguishing makes it difficult for the first sprinkler head to trigger water spraying in non-fire situations, thereby reducing the risk of misoperation; and the second spray component, that is, the passive spraying, automatically starts when the fire is large or the temperature reaches the preset value, thereby improving the overall safety protection level, playing an effective role, and ensuring battery safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 This is a front view of a shared charging cabinet in a preferred embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 Rear view of the shared charging cabinet;

[0020] Figure 3 yes Figure 1 Schematic diagram of the internal structure of the shared charging cabinet;

[0021] Figure 4 yes Figure 3 An exploded perspective view of the battery charging unit 20;

[0022] Figure 5 yes Figure 4 A schematic structural diagram of the fire extinguishing module 22;

[0023] Figure 6 yes Figure 4 A perspective exploded view of the middle fire extinguishing module 22;

[0024] Figure 7 yes Figure 6 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0025] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0026] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] "Multiple" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0028] Moreover, the terms "up, down, front, back, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or apparatus described in this solution during normal use.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] A shared charging cabinet in a preferred embodiment of the present invention is as follows Figure 1-7 As shown, a shared charging cabinet includes a cabinet body 10 having a hollow chamber 11 therein. Multiple battery charging units 20 are longitudinally arranged within the hollow chamber 11. The battery charging units 20 include a charging compartment 21 and a fire extinguishing module 22 fixedly connected to the charging compartment 21. The charging compartment 21 includes a charging cavity 211 for placing batteries. The front end of the charging compartment 21 includes an opening 212 for inserting batteries into the charging cavity 211. The fire extinguishing module 22 includes a first spray assembly that actively extinguishes battery fires within the charging cavity 211 and a second spray assembly that passively extinguishes battery fires within the charging cavity 211. The first spray assembly is configured to actively extinguish fires when a fire has just occurred or when the temperature rises abnormally. The second spray assembly is configured to passively activate when the fire is large or when the temperature exceeds a preset value. The cabinet body 10 also includes a water supply system 30 that supplies water to the first and second spray assemblies. Furthermore, the cabinet body 10 includes multiple charging cabinet doors 12 on the front side, corresponding one to each of the battery charging units 20 to open or close the openings 212. Through multiple charging cabinet doors 12 corresponding one to one with the battery charging units, each charging cavity can be well isolated. When the user opens the charging cabinet door of any unused charging compartment, other charging compartments will not be affected and stop charging.

[0031] This shared charging cabinet is cleverly designed, providing dual protection for the charging compartment through active fire extinguishing through the first spray assembly and passive fire extinguishing through the second spray assembly. Active and passive spraying can be selected based on the actual situation and the size of the fire, making fire response strategies more flexible and effective. The first spray assembly, or active spraying, can intervene at the first sign of a fire, preventing it from happening and reducing damage to the battery and cabinet. The active spraying design prevents the first sprinkler head from easily triggering water spraying in the absence of a fire, thereby reducing the risk of misoperation. The second spray assembly, or passive spraying, automatically activates when the fire is large or the temperature reaches a preset value, enhancing the overall level of safety protection and effectively ensuring battery safety.

[0032] In this embodiment, the first spray assembly includes a first nozzle 221 fixedly connected to the first water outlet of the water supply system 30; the first nozzle 221 is provided with a first spray port 222, a first plug 223 adapted to the first spray port 222, a first glass column 224 that provides support for the first plug 223 so that it blocks the first water outlet, and a heating assembly 225 mounted on the first glass column 224 to trigger its rupture; the present invention uses the heating assembly to rapidly heat and raise the temperature when it detects a battery failure causing an abnormal temperature rise or when the system indicates a flame, thereby triggering the rupture of the first glass column, causing the first nozzle to begin spraying water, thereby enabling rapid response and control of the fire. This design can also reduce false triggering and improve the reliability of fire extinguishing. Optionally, the heating assembly can adopt the heating wire structure of the prior art. The heating wire can be heated up through the system control of the charging cabinet; it is worth noting that controlling the heating wire heating up through the system is a conventional technical means and is not an improvement point of the present invention, so it will not be elaborated here; if a flame is found or a battery failure is detected and an overheating abnormality occurs, the system can actively start the heating component to quickly heat up to trigger the first glass column to break, and the first plug is affected by the water pressure in the first fire pipe and detached from the first spray port, thereby allowing the water in the first fire pipe to flow into the charging cavity to extinguish the fire and cool the battery.

[0033] The first spray assembly has a simple structure. When the heating assembly detects an abnormal increase in battery temperature or the system prompts the presence of a fire, it quickly triggers the first glass column to break, causing the first nozzle to start spraying water. This design can quickly respond and control the fire. In addition, this design can reduce false triggering and improve the reliability of fire extinguishing.

[0034] Furthermore, the second spray assembly includes a second nozzle 226 fixedly connected to the second water outlet of the water supply system 30; the second nozzle 226 is provided with a second spray port 227, a second plug 228 adapted to the first spray port 222, and a second glass column 229 that provides support for the second plug 228 to block the second water outlet. When the battery temperature rises above the heat resistance threshold of the second glass column, the second glass column 225 naturally ruptures, and the second plug, affected by the water pressure in the second fire hose, detaches from the second spray port. This allows water in the second fire hose to flow into the charging cavity, extinguishing the battery fire and cooling it. This passive fire extinguishing method requires no human intervention, providing a second level of fire protection for the charging compartment.

[0035] Furthermore, in order to better extinguish the fire, the first spray assembly and the second spray assembly are arranged side by side above the battery, so as not to occupy too much space in the longitudinal direction of the battery compartment.

[0036] Furthermore, the water supply system 30 includes a water tank 31 located above the topmost battery charging unit 20, and two fire mains 32 arranged side by side and connected to the water tank 31. One fire main 32 is provided with a plurality of first branch pipes 33 corresponding one-to-one with and connected to the first spray ports 222, while the other fire main 32 is provided with a plurality of second branch pipes 34 corresponding one-to-one with and connected to the second spray ports 227. The two fire mains supply water to the first and second spray assemblies, respectively, without affecting each other's spraying efficiency.

[0037] Furthermore, the fire extinguishing module 22 also includes a protective cover 2211 fixedly connected to the upper surface of the charging compartment 21; the fire extinguishing module 22 is arranged above the charging compartment; the fire extinguishing module 20 does not take up too much space in the charging compartment, and can reduce the overall volume of the charging compartment 10; a accommodating space is provided in the protective cover 2211; a through hole 213 is provided on the charging compartment 21 within the coverage range of the protective cover 2211; the accommodating space is connected to the charging cavity 211 through the through hole 213; the first nozzle 221 and the second nozzle 226 are both located in the accommodating space; the first nozzle and the second nozzle are not easily affected by external interference; optionally, the fire extinguishing module 20 can be arranged in the charging compartment 10.

[0038] Furthermore, the upper shell of the charging compartment 21 is provided with a plurality of pressure relief holes 214 communicating with the charging chamber 211. The pressure relief holes can balance the internal and external pressures of the charging compartment, thereby preventing the pressure from pushing the battery compartment door open and accidentally injuring people in the event of a battery fire or explosion. At the same time, the pressure relief holes can also dissipate heat from the battery, thereby extending its service life.

[0039] Furthermore, the left and right side walls and the inner surface of the bottom plate of the charging compartment 21 are provided with multiple guide bars 215 extending along the battery's movement trajectory. By providing multiple guide bars, while supporting the battery, a certain amount of heat dissipation space can be reserved between the battery and the charging compartment shell, facilitating air circulation and heat dissipation.

[0040] In order to quickly dissipate heat from the multiple battery charging units in the cabinet, the cabinet 10 is provided with multiple heat dissipation modules for cooling the charging compartments 21 in the hollow chamber 11 .

[0041] In one embodiment, the heat dissipation module includes at least one heat dissipation hole 13 provided on the cabinet 10 and communicating with the hollow chamber 11, and at least one heat dissipation fan 14 provided in the hollow chamber 11 and located on one side of the heat dissipation hole 13; the heat dissipation fan 14 blows the hot air in the hollow chamber 11 out of the cabinet 10 through the heat dissipation hole 13. In this embodiment, a plurality of heat dissipation holes are provided and arranged in a strip-like manner. Optionally, the heat dissipation holes can also be provided as a plurality of circular holes; the heat dissipation fan is fixedly mounted on the inner wall of the cabinet on one side of the heat dissipation hole; the heat dissipation fan rapidly discharges the hot air in the chamber, thereby accelerating the heat transfer rate, improving the airflow distribution in the hollow chamber, promoting the exchange of hot and cold air, and reducing the operating temperature of the multiple charging pods in the hollow chamber, thereby improving the overall heat dissipation efficiency.

[0042] Furthermore, multiple control modules 15 and sensitive electrical components (not shown) are provided on one side of the battery charging unit 20 within the cabinet 10. A maintenance door 16 is also provided on the back of the cabinet 10. This control module 15 is prior art in the field of charging cabinets and will not be described in detail here. By arranging multiple control modules and sensitive electrical components on the side of the battery charging unit, not only does it help isolate these sensitive electrical components and control modules from the battery compartment, which may malfunction, thereby reducing mutual interference and improving system safety, but it also maximizes the use of cabinet space through a reasonable layout, avoiding disorganized wiring, and keeping the cabinet interior neat and orderly for easy management and operation. It also makes it easier for maintenance personnel to perform routine inspections, repairs, and replacement of damaged components on the control modules and sensitive electrical components.

[0043] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A shared charging cabinet, comprising a cabinet body with a hollow chamber inside, characterized in that: A plurality of battery charging units are longitudinally arranged in the hollow chamber; the battery charging unit includes a charging compartment and a fire extinguishing module fixedly connected to the charging compartment; a charging cavity for placing batteries is provided in the charging compartment; The front end of the charging compartment is provided with an opening for inserting the battery into the charging cavity; the fire extinguishing module includes a first spray component that actively extinguishes the battery fire in the charging cavity and a second spray component that passively extinguishes the battery fire in the charging cavity; the first spray component is used to actively intervene in fire extinguishing when the fire just occurs or the temperature rises abnormally; the second spray component is used to passively start when the temperature exceeds a preset value; the cabinet is also provided with a water supply system for supplying water to the first spray component and the second spray component; the front side of the cabinet is provided with a plurality of charging cabinet doors that correspond one-to-one to the battery charging units to open or close the opening.

2. The shared charging cabinet according to claim 1, characterized in that: The first spray assembly includes a first nozzle fixedly connected to the first water outlet of the water supply system; the first nozzle is provided with a first spray port, a first plug adapted to the first spray port, a first glass column that provides support for the first plug so that it blocks the first water outlet, and a heating assembly mounted on the first glass column to trigger its fracture.

3. The shared charging cabinet according to claim 2, characterized in that: The second spray assembly includes a second nozzle fixedly connected to the second water outlet of the water supply system; the second nozzle is provided with a second spray port, a second plug adapted to the first spray port, and a second glass column that provides support force for the second plug so that it blocks the second water outlet.

4. The shared charging cabinet according to any one of claims 1 to 3, characterized in that: The first spray assembly and the second spray assembly are arranged side by side above the battery.

5. The shared charging cabinet according to claim 3, characterized in that: The water supply system includes a water tank arranged above the battery charging unit on the top layer, and two fire main pipes arranged side by side and both connected to the water tank; one of the fire main pipes is provided with a plurality of first branch pipes corresponding one-to-one to and connected to the first spray outlets, and the other fire main pipe is provided with a plurality of second branch pipes corresponding one-to-one to and connected to the second spray outlets.

6. The shared charging cabinet according to claim 3, characterized in that: The fire extinguishing module also includes a protective cover fixedly connected to the upper surface of the charging compartment; a accommodating space is provided inside the protective cover; a through hole is provided on the charging compartment within the coverage range of the protective cover; the accommodating space is connected to the charging chamber through the through hole; the first nozzle and the second nozzle are both located in the accommodating space.

7. The shared charging cabinet according to claim 1, characterized in that: The upper shell of the charging compartment is also provided with a plurality of pressure relief holes connected to the charging cavity.

8. The shared charging cabinet according to claim 1, characterized in that: The cabinet is provided with a plurality of heat dissipation modules for cooling the charging compartment in the hollow cavity.

9. The shared charging cabinet according to claim 8, characterized in that: The heat dissipation module includes at least one heat dissipation hole arranged on the cabinet and connected to the hollow cavity, and at least one heat dissipation fan arranged in the hollow cavity and located on one side of the heat dissipation hole; the heat dissipation fan blows the hot air in the hollow cavity out of the cabinet through the heat dissipation hole.

10. The shared charging cabinet according to claim 1, characterized in that: A plurality of control modules and sensitive electrical components are provided in the cabinet on one side of the battery charging unit, and a maintenance door is provided on the back side of the cabinet.

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