Fire-fighting spraying device and battery pack

Abstract

The utility model belongs to the technical field of batteries, and discloses a fire-fighting spraying device and a battery pack. The fire-fighting spraying device comprises a spraying mechanism and a directional structure. Wherein the orientation structure is arranged on a side plate of a shell of the battery pack, the orientation structure comprises an inclined part, the injection mechanism is mounted on the inclined part, and the inclined part enables the injection mechanism to inject a fire extinguishing medium to the inclined upper part so as to inject the fire extinguishing medium to the upper part of a battery module. The fire extinguishing medium of the fire-fighting spraying device can be sprayed to the unshielded space at the upper part of the battery module, so that the effective spraying area is greatly increased, and the fire extinguishing effect and the fire extinguishing efficiency are further improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a fire sprinkler device and battery pack. Background Technology

[0002] In the energy storage field, batteries have become the primary energy storage device due to their advantages such as high energy density, long lifespan, and environmental friendliness. However, when battery modules experience thermal runaway or electrical faults, they can easily lead to fires. Therefore, fire protection measures are particularly important in the event of a battery module fire.

[0003] like Figure 1 As shown, in the prior art, the fire protection measure for the battery module 3 is a fire extinguishing agent nozzle 2. The fire extinguishing agent nozzle 2 is generally installed on the battery pack housing 1 and faces the battery module 3 directly. When a fire occurs inside the battery module 3, the fire extinguishing agent nozzle 2 instantly sprays the fire extinguishing agent into the battery module 3, thereby extinguishing the fire. However, because the internal components of the battery module 3 are tightly arranged, and the fire extinguishing agent nozzle 2 sprays directly at the battery module 3 (i.e., the direction of the fire extinguishing agent sprayed by the nozzle 2 is horizontal), some of the fire extinguishing agent is blocked by the end plate or other components of the battery module 3, preventing it from effectively reaching the battery cells. This results in low fire extinguishing effect and efficiency.

[0004] Therefore, there is an urgent need to propose a fire sprinkler system and battery pack to solve the above-mentioned technical problems. Utility Model Content

[0005] According to one aspect of the present invention, the present invention provides a fire-fighting sprinkler device, wherein the fire extinguishing medium can be sprayed into the unobstructed space above the battery module, which greatly increases the effective spraying area and thus improves the fire extinguishing effect and fire extinguishing efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A fire sprinkler system for a battery pack, the battery pack including a housing and battery modules disposed within the housing, the fire sprinkler system comprising:

[0008] A spraying mechanism used to spray extinguishing agents;

[0009] A directional structure is provided on the side plate of the housing. The directional structure includes an inclined portion. The spraying mechanism is mounted on the inclined portion. The inclined portion causes the spraying mechanism to spray the fire extinguishing medium obliquely upward, so as to spray the fire extinguishing medium above the battery module.

[0010] Optionally, the orientation structure is located on the side of the side plate opposite to the battery module.

[0011] Optionally, the side plate is provided with a mounting opening, and the orientation structure is disposed at the mounting opening;

[0012] The inclined portion is an inclined panel that is set at an acute angle to the side plate. The three adjacent sides of the inclined panel are respectively connected to three connecting plates. Two adjacent connecting plates are connected to each other. The inclined panel and the three connecting plates form a cover structure. The cover is sealed and covered by the installation opening.

[0013] The inclined panel is provided with a first connection hole, and the spraying mechanism is sealed through the first connection hole.

[0014] Optionally, the spraying mechanism includes a mounting plate and a nozzle passing through the mounting plate, the mounting plate being detachably connected to the inclined panel, and a sealing element being provided between the mounting plate and the inclined panel.

[0015] Optionally, the orientation structure and the side plate form an integral structure.

[0016] Optionally, each of the connecting plates is provided with a number of reinforcing ribs.

[0017] Optionally, the side plate is provided with an installation opening, the orientation structure is a wedge block, the plane of the wedge block is sealed to the installation opening, the wedge block is provided with a second connecting hole perpendicular to the inclined surface of the wedge block, and the spraying mechanism is sealed through the second connecting hole.

[0018] Optionally, the wedge block is installed on the side plate by welding.

[0019] According to another aspect of the present invention, a battery pack is also provided, including a housing, a battery module, and a fire sprinkler device as described in any of the above technical solutions, wherein the directional structure of the fire sprinkler device is disposed on the housing.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a fire sprinkler system, including a spraying mechanism and a directional structure. The directional structure is disposed on the side plate of the battery pack housing. The directional structure includes an inclined portion, which directs the spraying direction of the spraying mechanism mounted thereon to an oblique upward. This arrangement allows the fire extinguishing medium sprayed by the spraying mechanism to reach the unobstructed space above the battery module. Compared with the prior art where the fire extinguishing medium is sprayed horizontally towards the battery module, this avoids the fire extinguishing medium being obstructed by the end plate or other components of the battery module, increasing the effective spraying area and thus improving the fire extinguishing effect and efficiency.

[0022] Furthermore, by using a directional structure to change the spray direction of the spray mechanism, no modifications to the spray mechanism are required, resulting in a simple structure and low R&D costs.

[0023] This utility model also provides a battery pack, including a housing, a battery module, and the aforementioned fire sprinkler system. Because this battery pack incorporates the aforementioned fire sprinkler system, it offers a high level of safety. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a partial schematic diagram of a battery pack in the prior art;

[0026] Figure 2 This is a schematic diagram of the fire sprinkler system provided in this embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of an oriented structure from one perspective provided by an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of an oriented structure from another perspective provided by an embodiment of the present invention;

[0029] Figure 5 This is a cross-sectional view of another oriented structure provided in an embodiment of this utility model.

[0030] Figure 1 middle:

[0031] 1. Battery pack housing; 2. Fire extinguishing agent nozzle; 3. Battery module;

[0032] Figures 2-5 middle:

[0033] 10. Housing; 20. Battery module;

[0034] 100. Spraying mechanism; 110. Mounting plate; 120. Nozzle;

[0035] 200, Orientation structure; 210, Inclined part; 211, First connecting hole; 220, Connecting plate. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] This embodiment provides a fire sprinkler device for a battery pack. The fire extinguishing medium of the fire sprinkler device can be sprayed into the unobstructed space above the battery module, which greatly increases the effective spraying area and thus improves the fire extinguishing effect and efficiency.

[0044] Specifically, such as Figure 2 As shown, the fire sprinkler system includes a spraying mechanism 100 and a directional structure 200.

[0045] The spraying mechanism 100 is used to spray extinguishing media to extinguish the fire in the battery pack. Optionally, the extinguishing media can be perfluorohexanone, fine water mist, heptafluoropropane, etc., whichever is selected according to actual needs; this application does not impose specific limitations.

[0046] A directional structure 200 is disposed on the side plate of the battery pack housing 10. The directional structure 200 includes an inclined portion 210, on which a spraying mechanism 100 is mounted. The inclined portion 210 causes the spraying mechanism 100 to spray the extinguishing medium obliquely upwards, thereby spraying the extinguishing medium above the battery module 20. That is, the directional structure 200 changes the spraying direction of the spraying mechanism 100, allowing the extinguishing medium sprayed by the spraying mechanism 100 to be sprayed onto the unobstructed space above the battery module 20. Compared with the prior art where the extinguishing medium is sprayed horizontally towards the battery module 20, this avoids the extinguishing medium being obstructed by the end plate or other components of the battery module 20, increases the effective spraying area, and thus improves the extinguishing effect and efficiency.

[0047] Furthermore, by using the directional structure 200 to change the spray direction of the spray mechanism 100, no modifications to the spray mechanism 100 are required, resulting in a simple structure and low R&D costs.

[0048] It is worth noting that in the prior art, the nozzle 120 is directly installed through the side plate of the battery pack housing 10. Therefore, the central axis of the nozzle 120 is perpendicular to the side plate, that is, the spraying direction of the nozzle 120 is perpendicular to the side plate (in the horizontal direction).

[0049] It is worth noting that the spraying mechanism 100 is connected to the extinguishing medium storage device, which continuously supplies the extinguishing medium to the spraying mechanism 100 to ensure the reliability of fire extinguishing. Since the structure of the extinguishing medium storage device and the connection method between the extinguishing medium storage device and the spraying mechanism 100 are existing technologies, their specific structures will not be described in detail.

[0050] It is understandable that the tilt angle of the tilting part 210 can be designed according to factors such as the installation position of the directional structure 200 and the height of the battery module 20, so as to ensure that the spraying mechanism 100 can spray the extinguishing medium into the space above the battery module 20.

[0051] Optionally, the orientation structure 200 is disposed on the side of the side panel away from the battery module 20, that is, the orientation structure 200 is disposed on the outside of the housing 10. This arrangement can avoid the orientation structure 200 occupying the internal space of the housing 10, which is conducive to improving the space utilization of the housing 10.

[0052] Optionally, such as Figure 3 and Figure 4 As shown, in one possible embodiment, a mounting opening (not shown) is provided on the side plate, and the orientation structure 200 is disposed at the mounting opening. The inclined portion 210 is an inclined panel set at an acute angle to the side plate. The three adjacent sides of the inclined panel are respectively connected to three connecting plates 220. Two adjacent connecting plates 220 are connected to each other. The inclined panel and the three connecting plates 220 form a cover structure, which is sealed and covered at the mounting opening. A first connecting hole 211 is provided on the inclined panel, and the spraying mechanism 100 is sealed and passes through the first connecting hole 211. This orientation structure 200 is relatively simple and easy to process and assemble.

[0053] Furthermore, the directional structure 200 and the side plate form an integral structure. This arrangement ensures both the connection strength between the directional structure 200 and the side plate, and the sealing between them. Optionally, the directional structure 200 can be formed by stamping on the side plate for easy processing.

[0054] Optionally, each connecting plate 220 is provided with several reinforcing ribs. This arrangement can improve the strength of the connecting plate 220, thereby improving its resistance to deformation, reducing the risk of changes in the tilt angle of the tilted panel of the directional structure 200 due to impact or other reasons, and thus ensuring the fire extinguishing effect of the fire sprinkler system.

[0055] Optionally, see [link to relevant documentation] Figure 2 The spraying mechanism 100 includes a mounting plate 110 and a nozzle 120 passing through the mounting plate 110. The mounting plate 110 is detachably connected to an inclined panel, and a seal is provided between the mounting plate 110 and the inclined panel. The detachable connection between the mounting plate 110 and the inclined panel facilitates the replacement and maintenance of the spraying mechanism 100. The seal between the mounting plate 110 and the inclined panel ensures a sealed connection, resulting in a simple structure that is easy to install and disassemble.

[0056] Understandably, the outlet end of nozzle 120 is located inside the housing 10 and is used to spray the extinguishing medium. The inlet end of nozzle 120 is located outside the housing 10 and is used to connect to the extinguishing medium storage device.

[0057] Optionally, the mounting plate 110 can be detachably connected to the inclined panel by bolts. The bolt connection structure is simple and has high connection strength, which can reduce the risk of misalignment after the nozzle 120 is installed, thereby improving the reliability of the nozzle 120.

[0058] Furthermore, such as Figure 5 As shown, in another possible embodiment, the side plate has a mounting opening, the directional structure 200 is a wedge-shaped block, the plane of the wedge-shaped block seals the mounting opening, and the wedge-shaped block has a second connecting hole perpendicular to the inclined surface of the wedge-shaped block. The spraying mechanism 100 passes through the second connecting hole. By setting the directional structure 200 as a wedge-shaped block, the structural strength of the directional structure 200 is higher, and the contact area between the second connecting hole and the spraying mechanism 100 is larger, resulting in a better effect in fixing the spraying mechanism 100. In addition, this directional structure 200 is relatively simple and easy to process and assemble.

[0059] Alternatively, the wedge block can be connected to the side plate by welding. The welding process is simple, easy to operate, and has good sealing performance.

[0060] This embodiment also provides a battery pack, including a housing 10, a battery module 20 and the aforementioned fire sprinkler device, wherein the directional structure 200 of the fire sprinkler device is disposed on the housing 10.

[0061] Because this battery pack uses the aforementioned fire sprinkler system, it has excellent fire extinguishing effect and efficiency, and therefore is highly safe to use.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fire sprinkler system for a battery pack, the battery pack comprising a housing (10) and a battery module (20) disposed within the housing (10), characterized in that, The fire sprinkler system includes: The spraying mechanism (100) is used to spray the extinguishing medium; A directional structure (200) is disposed on the side plate of the housing (10). The directional structure (200) includes an inclined portion (210). The spraying mechanism (100) is mounted on the inclined portion (210). The inclined portion (210) causes the spraying mechanism (100) to spray the fire extinguishing medium obliquely upward, so as to spray the fire extinguishing medium above the battery module (20).

2. The fire sprinkler system according to claim 1, characterized in that, The orientation structure (200) is located on the side of the side plate opposite to the battery module (20).

3. The fire sprinkler system according to claim 1, characterized in that, The side plate is provided with an installation opening, and the orientation structure (200) is disposed at the installation opening; The inclined portion (210) is an inclined panel that is set at an acute angle to the side plate. The three adjacent sides of the inclined panel are respectively connected to three connecting plates (220). Two adjacent connecting plates (220) are connected to each other. The inclined panel and the three connecting plates (220) form a cover structure. The cover is sealed and covered by the installation opening. The inclined panel is provided with a first connection hole (211), and the spraying mechanism (100) is sealed through the first connection hole (211).

4. The fire sprinkler system according to claim 3, characterized in that, The spraying mechanism (100) includes a mounting plate (110) and a nozzle (120) passing through the mounting plate (110). The mounting plate (110) is detachably connected to the inclined panel, and a seal is provided between the mounting plate (110) and the inclined panel.

5. The fire sprinkler system according to claim 3, characterized in that, The directional structure (200) and the side plate form an integral structure.

6. The fire sprinkler system according to claim 3, characterized in that, Each of the connecting plates (220) is provided with several reinforcing ribs.

7. The fire sprinkler system according to claim 1, characterized in that, The side plate is provided with an installation opening, the orientation structure (200) is a wedge block, the plane of the wedge block is sealed to the installation opening, the wedge block is provided with a second connecting hole perpendicular to the inclined surface of the wedge block, and the spraying mechanism (100) is sealed through the second connecting hole.

8. The fire sprinkler system according to claim 7, characterized in that, The wedge-shaped block is installed on the side plate by welding.

9. A battery pack, characterized in that, The device includes a housing (10), a battery module (20), and a fire sprinkler device according to any one of claims 1-8, wherein the directional structure (200) of the fire sprinkler device is disposed on the housing (10).

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