Energy storage box with fire extinguishing function

Abstract

The utility model relates to the technical field of safety protection of energy storage power stations, and provides an energy storage box with a fire extinguishing function, which comprises a cover body, a box body, a lithium battery, a detection starting line and a fire extinguishing device, the cover body can be matched with the box body, the lithium battery is arranged in the box body, the cover body comprises an inner cover and an outer cover which are arranged at an interval, the detection starting line is fixed below the inner cover, the fire extinguishing device is arranged between the inner cover and the outer cover and is in communication connection with the detection starting line, a first spraying opening is formed in the inner cover, and the first spraying opening is communicated with a cavity between the inner cover and the outer cover. According to the utility model, the fire extinguishing function can be realized, the electrolyte can be quickly discharged out of the box body, the electrolyte is prevented from releasing combustible gas due to heating, and fire spreading can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection of energy storage power stations, in particular to an energy storage box with a fire extinguishing function. Background Art

[0002] Energy storage is a key supporting technology for energy structure adjustment and power system transformation under the wave of new energy. As a new energy battery, lithium-ion batteries are not only more environmentally friendly but also have better performance. Therefore, they are widely used in energy storage power stations.

[0003] Lithium-ion container energy storage solutions are widely used in the access and consumption of new energy power generation, realizing distributed power generation and microgrid energy storage, and providing reliable power supply and power quality for power system frequency and voltage regulation, and distribution system upgrades and renovations. However, lithium-ion batteries may experience thermal runaway during storage due to heat accumulation from their own chemical reactions or the influence of external heat sources. Once a fire occurs, it will have a serious impact on the safety performance of the energy storage power station, and traditional energy storage boxes lack effective fire extinguishing methods.

[0004] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Utility Model Content

[0005] The utility model provides a solution to the technical problem that traditional energy storage boxes lack effective fire extinguishing means.

[0006] In order to solve the above technical problems, the utility model provides an energy storage box with a fire extinguishing function, comprising:

[0007] Cover body 1, box body 2, lithium battery 3, detection start line 4 and fire extinguishing device 5;

[0008] The cover body 1 can be matched with the box body 2, the lithium battery 3 is arranged inside the box body 2, the cover body 1 includes an inner cover 11 and an outer cover 12 arranged at intervals, the detection start line 4 is fixed under the inner cover 11, the fire extinguishing device 5 is arranged between the inner cover 11 and the outer cover 12 and is communicated with the detection start line 4, and the inner cover 11 is provided with a first discharge port 111, and the first discharge port 111 is connected to the cavity between the inner cover 11 and the outer cover 12.

[0009] Preferably, it also includes a bottom plate 6 , which is arranged inside the box body 2 ; wherein the lithium battery 3 is fixed above the bottom plate 6 .

[0010] Preferably, a drainage hole 61 is provided on the bottom plate 6 , and the drainage hole 61 is communicated with a drainage channel 7 between the bottom plate 6 and the box body 2 .

[0011] Preferably, the number of the drainage holes 61 corresponds to the number of the lithium batteries 3 .

[0012] Preferably, a docking groove 21 is provided on the side wall of the box body 2 , and the docking groove 21 is communicated with the first discharge port 111 .

[0013] Preferably, a second discharge port 211 is provided on one side of the docking groove 21 , and the second discharge port 211 is communicated with the interior of the box body 2 .

[0014] Preferably, it also includes a buckle 8 , wherein the detection start line 4 is fixed below the inner cover 11 through the buckle 8 .

[0015] Preferably, an angle is provided between the drainage channel 7 and the horizontal plane.

[0016] Preferably, the inner cover 11 and the outer cover 12 are detachably connected.

[0017] In view of the deficiencies in the prior art, the beneficial effects that can be achieved by the utility model are as follows:

[0018] The utility model provides a detection start line and a fire extinguishing device. When the temperature of the lithium battery rises due to thermal runaway, the detection start line can detect the temperature abnormality and then start, so that the fire extinguishing device sprays out the fire extinguishing medium to achieve the fire extinguishing function.

[0019] Furthermore, the utility model provides drainage holes and drainage channels, which can quickly discharge electrolyte out of the box when thermal runaway occurs in the lithium battery, thereby preventing the electrolyte from releasing flammable gas due to heat, and effectively reducing the spread of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0021] Figure 1 This is a partial schematic diagram of an energy storage box with a fire extinguishing function provided by an embodiment of the utility model;

[0022] Figure 2 This is another partial schematic diagram of an energy storage box with a fire extinguishing function provided by an embodiment of the utility model;

[0023] Figure 3 yes Figure 2 Side view of

[0024] Figure 4 yes Figure 1 Top view of the .

[0025] In the accompanying drawings, the same reference numerals are used to denote the same components or structures, wherein:

[0026] 1-cover body, 11-inner cover, 111-first discharge port, 12-outer cover; 2-box body, 21-docking slot, 211-second discharge port; 3-lithium battery; 4-detection start line; 5-fire extinguishing device; 6-bottom plate; 7-drainage channel; 8-buckle. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0029] In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] In order to solve the technical problem that the traditional energy storage box lacks effective fire extinguishing means, this embodiment provides an energy storage box with a fire extinguishing function, such as Figure 1-Figure 4 As shown, it includes: a cover body 1, a box body 2, a lithium battery 3, a detection start line 4 and a fire extinguishing device 5; the cover body 1 can cooperate with the box body 2 to achieve sealing, the lithium battery 3 is arranged inside the box body 2, the cover body 1 includes an inner cover 11 and an outer cover 12 arranged at intervals, the detection start line 4 is fixed under the inner cover 11, and in specific implementation, the detection start line 4 is fixed under the inner cover 11 by a buckle 8, the fire extinguishing device 5 is arranged between the inner cover 11 and the outer cover 12 and is communicated with the detection start line 4, and a first discharge port 111 is provided on the inner cover 11, and the first discharge port 111 is connected to the cavity between the inner cover 11 and the outer cover 12.

[0031] When the temperature of the lithium battery 3 rises due to thermal runaway, the detection start line 4 can detect the temperature abnormality and start, so that the fire extinguishing device 5 sprays the fire extinguishing medium, and the fire extinguishing medium is sprayed onto the lithium battery 3 from the first spraying port 111 to achieve the fire extinguishing function.

[0032] In order to provide support for the lithium battery 3 , the energy storage box with a fire extinguishing function provided in this embodiment also includes a bottom plate 6 , which is arranged inside the box body 2 ; wherein the lithium battery 3 is fixed above the bottom plate 6 .

[0033] In order to achieve rapid discharge of electrolyte, a pressure relief valve is provided on the lithium battery 3. When the temperature is abnormal, the pressure relief valve will open, allowing the electrolyte in the lithium battery 3 to overflow quickly. At the same time, a drainage hole is provided on the bottom plate 6, and the drainage hole is connected to the drainage channel 7 between the bottom plate 6 and the box body 2. The electrolyte enters the drainage channel 7 after passing through the drainage hole and is finally discharged to the outside of the box body 2. Preferably, the number of drainage holes corresponds to the number of lithium batteries 3. Furthermore, in order to speed up the discharge speed of the electrolyte, as one of the optional implementation methods, an inclined angle is provided between the drainage channel 7 and the horizontal plane.

[0034] In some optional implementations, in order to provide protection for the lithium battery 3 and prevent the fire extinguishing medium from being directly sprayed onto the lithium battery 3 during the fire extinguishing process, the flow path of the fire extinguishing medium can also be optimized. In specific implementation, a docking groove 21 is provided on the side wall of the box body 2. When the cover body 1 can cooperate with the box body 2, the docking groove 21 can be connected to the first discharge port 111. A second discharge port 211 is provided on one side of the docking groove 21. The second discharge port 211 is connected to the interior of the box body 2. The fire extinguishing medium sprayed from the fire extinguishing device 5 enters the interior of the box body 2 through the first discharge port 111, the docking groove 21, and the second discharge port 211 in sequence. The fire extinguishing medium reduces the oxygen concentration inside the box body 2 and is less likely to cause a fire. At the same time, it can also enter the drainage channel 7 and accelerate the discharge of the electrolyte to the outside of the box body 2. Without relying on any electronic equipment, the discharge of the fire extinguishing medium (for example, white smoke) will allow personnel to discover that the lithium battery 3 is in a thermal runaway state as soon as possible, thereby serving as a warning.

[0035] In order to facilitate the later maintenance of the fire extinguishing device 5, preferably, the inner cover 11 and the outer cover 12 are detachably connected. During maintenance, it is only necessary to remove the outer cover 12 to perform maintenance on the fire extinguishing device 5. During the maintenance process, the sealing effect of the energy storage box can be maintained and the cleanliness of the inside of the energy storage box can be guaranteed to the greatest extent.

[0036] In summary, this embodiment provides an energy storage box with a fire extinguishing function, which can realize the fire extinguishing function and can also quickly discharge the electrolyte out of the box body to prevent the electrolyte from releasing flammable gas due to heat, which can effectively reduce the spread of fire.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy storage box with fire extinguishing function, characterized in that: include: A cover body (1), a box body (2), a lithium battery (3), a detection start line (4) and a fire extinguishing device (5); The cover body (1) can be matched with the box body (2), the lithium battery (3) is arranged inside the box body (2), the cover body (1) comprises an inner cover (11) and an outer cover (12) arranged at an interval, a detection start line (4) is fixed below the inner cover (11), a fire extinguishing device (5) is arranged between the inner cover (11) and the outer cover (12) and is connected to the detection start line (4), and a first discharge port (111) is provided on the inner cover (11), and the first discharge port (111) is connected to a cavity between the inner cover (11) and the outer cover (12).

2. The energy storage box with fire extinguishing function according to claim 1, characterized in that: It also includes a bottom plate (6), which is arranged inside the box body (2); wherein the lithium battery (3) is fixed above the bottom plate (6).

3. The energy storage box with fire extinguishing function according to claim 2, characterized in that: A drainage hole is provided on the bottom plate (6), and the drainage hole is communicated with a drainage channel (7) between the bottom plate (6) and the box body (2).

4. The energy storage box with fire extinguishing function according to claim 3 is characterized in that: The number of the drainage holes corresponds one to one to the number of the lithium batteries (3).

5. The energy storage box with fire extinguishing function according to claim 4, characterized in that: A docking groove (21) is provided on the side wall of the box body (2), and the docking groove (21) is communicated with the first discharge port (111).

6. The energy storage box with fire extinguishing function according to claim 5, characterized in that: A second discharge port (211) is provided on one side of the docking groove (21), and the second discharge port (211) is communicated with the interior of the box body (2).

7. The energy storage box with fire extinguishing function according to claim 1, characterized in that: It also includes a buckle (8); wherein the detection start line (4) is fixed below the inner cover (11) through the buckle (8).

8. The energy storage box with fire extinguishing function according to claim 3, characterized in that: An angle is provided between the drainage channel (7) and the horizontal plane.

9. The energy storage box with fire extinguishing function according to claim 1, characterized in that: The inner cover (11) and the outer cover (12) are detachably connected.

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