Battery fire-fighting box

Abstract

The invention provides a battery fire-fighting box. The battery fire-fighting box comprises a box body, a box cover and at least one box door, a containing cavity used for containing a battery is formed in the box body. Openings are formed in the top of the box body and at least one side in the circumferential direction. The box cover is arranged at the top opening of the box body, hinged to the box body and used for opening and closing the top opening of the box body. A box door is arranged at each opening in the circumferential direction of the box body, and the box doors are rotatably connected with the box body and used for opening and closing the lateral openings of the box body. A water inlet and a water outlet are formed in the box door or the box body, cooling liquid can be directly injected into the containing cavity through the water inlet, the cooling liquid is used for pouring and submerging the battery located in the containing cavity, continuous immersion type liquid cooling is carried out on the battery, heat of the battery is directly taken away through heat exchange between the cooling liquid and the battery, and the cooling efficiency of the battery is improved. Therefore, the purpose of quickly cooling the battery is achieved. And after the cooling work of the battery is completed, the waste liquid in the accommodating cavity can be discharged outwards through the water outlet, so that the waste liquid can be conveniently treated in a centralized manner.

Description

Technical Field

[0001] The present invention relates to the technical field of energy batteries, and particularly to a battery fire box. Background Art

[0002] During the production process of batteries, due to improper design, manufacturing defects or some external factors, overheating may occur, resulting in an uncontrollable explosive electrical energy release, thereby generating smoke, flammable gases, and heat up to 600°C - 1000°C, which cannot be fundamentally extinguished in a short time.

[0003] Currently, for battery fire fighting, methods such as burying with sand and spraying water for cooling are mostly used. Among them, burying with sand mainly relies on the asphyxiation effect, that is, this method cools the battery by isolating the battery from external oxygen. However, this method cannot block the chemical reaction between the positive and negative electrode materials inside the battery. Therefore, using this method to cool the battery not only takes a long time but also has a poor fire fighting and cooling effect. Spraying water for cooling mainly relies on the cooperation of a water pump and a nozzle to form a high-pressure spray to expand the spraying range, so that the water mist can completely cover the battery and undergo heat exchange with the battery to achieve the effect of evaporation and cooling. However, this method requires the installation of special spraying equipment, which has a complex structure, increases the input cost, and increases the later maintenance cost. Summary of the Invention

[0004] The purpose of the present invention is to provide a battery fire box with good cooling effect, simple structure, and convenient and fast operation.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present application, the present application provides a battery fire box, including:

[0007] A box body, which has a hollow interior forming a receiving cavity for receiving a battery; at least one opening communicating with the receiving cavity is provided at the top and at least one side along the circumference of the box body;

[0008] A box cover, which is arranged at the top opening of the box body and is hinged to the box body, and the box cover is used to open and close the top opening of the box body;

[0009] At least one box door, one box door is provided at each opening along the circumference of the box body, one end of the box door is rotatably connected to the box body, and is used to open and close the side opening of the box body; a water inlet and a drain outlet are provided on the box door or the box body, the water inlet is used to connect the receiving cavity and an external coolant source, and the drain outlet is used to discharge the waste liquid in the receiving cavity to the outside.

[0010] In some embodiments, the battery fire protection box includes at least two rotating components, and each of the box doors is rotatably connected to the box body through at least two of the rotating components; each of the rotating components includes:

[0011] A first hinge seat, which is arranged at the lateral opening end of the box body;

[0012] A second hinge seat, which is arranged at the end of the box door;

[0013] A first hinge block, which is hinged to the first hinge seat;

[0014] A second hinge block, whose opposite ends are respectively hinged to the second hinge seat and the first hinge block;

[0015] Wherein, the first hinge seat, the second hinge seat, the first hinge block and the second hinge block are used to jointly realize the rotation of the box door relative to the box body in the horizontal plane.

[0016] In some embodiments, the first hinge seat and the first hinge block are hinged through a first hinge shaft, the first hinge block and the second hinge block are hinged through a second hinge shaft, the second hinge block and the second hinge seat are hinged through a third hinge shaft, and the first hinge shaft, the second hinge shaft and the third hinge shaft are parallel to each other.

[0017] In some embodiments, the first end of the box door is rotatably connected to the box body;

[0018] The battery fire protection box further includes at least one locking component, and the second end of each box door is detachably connected to the box body through at least one of the locking components; the locking component includes:

[0019] A locking member, which is rotatably arranged at the lateral opening end of the box body, and the locking member can rotate relative to the box body;

[0020] A pressing member, which is arranged at the edge of the box door and protrudes outward from the box door; an outward-opening clamping interface is arranged on the pressing member, and the clamping interface is used for clamping and cooperating with the locking member.

[0021] In some embodiments, the locking component further includes a locking piece, and the locking piece is movably connected to the end of the locking member far away from the box body;

[0022] When the locking member is clamped and cooperated with the clamping interface, the locking piece is located outside the pressing member; the outer diameter of the locking piece is larger than the diameter of the clamping interface; the locking piece can move towards the box door to abut against the pressing member.

[0023] In some embodiments, a first end of the box door is rotatably connected to the box body;

[0024] The battery fire protection box further includes at least one support assembly, and at least one support assembly is provided outside a second end of each box door;

[0025] The support assembly includes a connecting rod and a support wheel. The connecting rod is connected to the box door, the support wheel is rotatably connected to the bottom of the connecting rod, the support wheel extends downward beyond the bottom of the box door, and the support wheel can be attached to and roll along an external bearing surface as the box door rotates.

[0026] In some embodiments, the support assembly further includes a first positioning frame, a second positioning frame and a screw rod. The first positioning frame and the second positioning frame are arranged at intervals in the vertical direction on the box door; the screw rod is vertically arranged on the first positioning frame; the connecting rod is vertically arranged on the second positioning frame;

[0027] Wherein, the screw rod is threadedly connected to the first positioning frame, the connecting rod is slidably connected to the second positioning frame, and the top of the connecting rod abuts against or is fixed to the bottom of the screw rod. The screw rod can rotate relative to the first positioning frame and move up and down vertically relative to the first positioning frame to adjust the vertical position of the support wheel; or,

[0028] The screw rod is rotatably connected to the first positioning frame, the connecting rod is slidably connected to the second positioning frame, the screw rod is screwed to the connecting rod, and the screw rod can rotate relative to the first positioning frame and the connecting rod to drive the connecting rod to drive the support wheel to move up and down vertically.

[0029] In some embodiments, the box door is hermetically connected to the box body;

[0030] A second sealing member is provided on the inner side of the box door. When the box door is closed at the side opening of the box body, the second sealing member is press-fitted and attached to the box body.

[0031] In some embodiments, the water inlet is provided at the upper part of the box body or the box door; a first connection joint is connected to the water inlet, and the first connection joint is used for detachably connecting to a device for supplying a coolant source externally;

[0032] The drain port is provided at the lower part of the box body or the box door; a second connection joint is provided at the drain port, and the second connection joint is used for detachably connecting to a device for collecting waste liquid externally; a valve is provided on the second connection joint for realizing the on-off of the second connection joint.

[0033] In some embodiments, a plurality of load-bearing beams are arranged at intervals on the bottom wall inside the box body, and the plurality of load-bearing beams are used to jointly support the battery;

[0034] Each of the load-bearing beams is provided with a through hole for the liquid in the accommodating cavity to flow through;

[0035] One side of each of the load-bearing beams forms a concave surface; the opening directions of the concave surfaces of each of the load-bearing beams are the same.

[0036] In some embodiments, the box cover includes a first cover body and a second cover body, and the first cover body and the second cover body are used to jointly open and close the top opening of the box body;

[0037] The first end of the first cover body is hinged to the box body, the first end of the second cover body is hinged to the box body, and the first cover body and the second cover body are respectively rotated outwards to open the opening of the box body;

[0038] When the first cover body and the second cover body are closed at the opening of the box body, the second end of the first cover body overlaps with the second end of the second cover body.

[0039] In some embodiments, the first cover body includes a support portion located at the second end of the first cover body. A support surface is formed on the support portion. When the first cover body and the second cover body are closed at the opening of the box body, the support surface is used to fit and overlap with the inner side of the second end of the second cover body; the support portion is hermetically connected to the second cover body;

[0040] A sealing gasket is provided on the support surface, and the inner side of the second cover body is pressed against the sealing gasket so that the sealing gasket is compressed to realize the sealing connection between the support portion and the second cover body; and / or, the box cover is hermetically connected to the box body; a first sealing member is provided on the inner side of the box cover. When the box cover is closed at the opening of the box body, the first sealing member is pressed against and fits with the box body.

[0041] In some embodiments, the battery fire protection box includes a lifting member hinged between the inner side of the box body and the inner side of the box cover;

[0042] The lifting member includes a guiding arm and a free arm. A guiding groove is formed on the guiding arm. At least a part of the free arm is located in the guiding groove and is slidably connected to the guiding arm; the guiding arm is hinged to the inner side of the box cover, and the free arm is hinged to the inner side of the box body;

[0043] Wherein, the guiding arm and the free arm can rotate along with the rotation of the box cover, and the free arm and the guiding arm can relatively slide to extend or shorten the length of the lifting member.

[0044] In some embodiments, the battery fire protection box further includes a positioning member, which is hinged to the inner side of the box cover and can rotate relative to the box cover. One end of the positioning member away from the box cover is detachably connected to the box body, and the positioning member is used to position and support the box cover in an open state.

[0045] As can be seen from the above technical solutions, the present invention has at least the following advantages and positive effects:

[0046] In this application, the opening on the box body of the battery fire protection box allows the battery to enter and exit the accommodating cavity. During actual application, the box cover or the box door can be opened to expose the opening of the box body, so as to facilitate the operation of taking and placing the battery. In addition, the openable box door also facilitates the direct removal of the waste inside the box body from the lateral opening of the box body, so as to facilitate the cleaning work of the waste. Since the water inlet on the box body can communicate the accommodating cavity with an external coolant source, coolant can be directly injected into the accommodating cavity through the water inlet, and the coolant is used to irrigate and submerge the battery located in the accommodating cavity. In this way, the battery can be continuously cooled by immersion, and the heat of the battery can be directly taken away by the heat exchange between the coolant and the battery, so as to achieve the purpose of quickly cooling the battery. Moreover, this method does not require additional complex equipment, simplifies the structure of the battery fire protection box, and is convenient and simple to operate, reducing the cost.

[0047] In addition, a drain port is provided in the battery fire protection box of this application, which enables the waste liquid in the accommodating cavity to be discharged outwards through the drain port after the battery cooling work is completed, so as to facilitate the centralized treatment of the waste liquid. Brief Description of the Drawings

[0048] Figure 1 It is a schematic structural diagram of the battery fire protection box in the first state in this embodiment.

[0049] Figure 2 is Figure 1 a schematic structural diagram of the battery fire protection box in another direction in

[0050] Figure 3 It is a schematic structural diagram of the battery fire protection box in the second state in this embodiment.

[0051] Figure 4 It is a schematic structural diagram of the battery fire protection box in the third state in this embodiment.

[0052] Figure 5 is Figure 3 a side view of the battery fire protection box in along the A-A direction.

[0053] Figure 6 is Figure 1 a sectional view of the battery fire protection box in along the B-B direction.

[0054] Figure 7 For Figure 6 The enlarged structure diagram at position C in

[0055] Figure 8 This is the partial structure diagram of the battery fire box in this embodiment.

[0056] Figure 9 Is Figure 3 The enlarged structure diagram at position D in

[0057] Figure 10 Is Figure 3 The enlarged structure diagram at position E in

[0058] Figure 11 This is the structure diagram of the support component in this embodiment.

[0059] The description of the reference numerals in the drawings is as follows:

[0060] 1. Box body; 11. Chassis; 111. Bottom frame; 112. Bottom plate; 113. Slot; 12. Fixed wall; 121. Fixed plate; 122. Reinforcing beam; 13. Column; 14. Top beam; 16. Drainage port; 17. Bearing beam; 171. Through hole; 2. Box cover; 21. First cover body; 211. Top plate; 212. Frame body; 2121. Support beam; 2122. Fixed part; 2123. Connection part; 2124. Support part; 22. Second cover body; 3. Box door; 31. Box board; 32. Frame; 33. Reinforcing beam; 34. Connection beam; 35. Water inlet; 41. First connection joint; 42. Second connection joint; 43. Valve; 51. First seal; 52. Second seal; 53. Sealing gasket; 6. Lifting part; 61. Guide arm; 62. Free arm; 71. Positioning part; 711. Clamping part; 72. Snap ring; 8. Locking assembly; 81. Locking part; 82. Pressing part; 821. Clamping port; 83. Locking piece; 84. Connection base; 85. Plug pin; 86. Gasket; 9. Support component; 91. Connecting rod; 92. Support wheel; 93. First positioning frame; 94. Second positioning frame; 941. Positioning plate; 95. Screw; 96. Reset part; 97. Limiting part; 98. Rotating handle; 10. Pulling ring; 20. Rotating component; 201. First hinge seat; 202. Second hinge seat; 203. First hinge block; 204. Second hinge block; 205. First hinge shaft; 206. Second hinge shaft; 207. Third hinge shaft. Detailed implementation manners

[0061] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are for illustrative purposes in nature and not intended to limit the present invention.

[0062] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indication of the direction or position relationship (such as up, down, left, right, front, and back, etc.) is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. When these elements are in the positions shown in the drawings, these descriptions are appropriate. If the description of the positions of these elements changes, then the indication of these directions also changes accordingly.

[0063] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0064] The present application provides a battery fire protection box for fire protection and cooling of batteries.

[0065] The following will describe in detail the specific embodiments of the battery fire protection box of the present application in conjunction with the accompanying drawings.

[0066] Figure 1 FIG. is a schematic structural diagram of the battery fire protection box in the first state in this embodiment. Figure 2 is Figure 1 a schematic structural diagram of the battery fire protection box in another direction in FIG. Figure 3 FIG. is a schematic structural diagram of the battery fire protection box in the second state in this embodiment.

[0067] Referring to Figures 1 to 3 , the battery fire protection box includes a box body 1, a box cover 2, and at least one box door 3. The interior of the box body 1 is hollow and forms a receiving cavity for receiving batteries. The top of the box body 1 and at least one side along the circumference are provided with openings communicating with the receiving cavity. The box cover 2 is provided at the top opening of the box body 1 and is hinged to the box body 1. The box cover 2 is used to open and close the top opening of the box body 1. Each opening along the circumference of the box body 1 is provided with one of the box doors 3. The box door 3 is rotatably connected to the box body 1 and is used to open and close the lateral opening of the box body 1. An inlet 35 and a drain 16 are provided on the box door 3 or the box body 1. The inlet 35 is used to connect the receiving cavity and an external coolant source, and the drain 16 is used to discharge the waste liquid in the receiving cavity to the outside.

[0068] In this application, the opening on the box body 1 of the battery fire protection box allows the battery to enter and exit the accommodation cavity. During actual use, the box cover 2 or the box door 3 can be opened to expose the opening of the box body 1, facilitating the operation of taking out and placing the battery. In addition, the openable box door 3 also makes it convenient to directly take out the waste in the box body 1 from the side opening of the box body 1, facilitating the cleaning of the waste.

[0069] Moreover, since the water inlet 35 can connect the accommodation cavity and the external coolant source, coolant can be directly injected into the accommodation cavity through the water inlet 35, and the coolant is used to irrigate and submerge the battery located in the accommodation cavity. In this way, the battery can be continuously cooled by immersion liquid cooling, and the heat of the battery can be directly taken away by heat exchange between the coolant and the battery, thereby achieving the purpose of quickly cooling the battery. Moreover, this method does not require additional complex equipment, simplifies the structure of the battery fire protection box, is convenient and simple to operate, and reduces costs.

[0070] In addition, the battery fire protection box in this application is also provided with a drain port 16, which enables the waste liquid in the accommodation cavity to be discharged outward through the drain port 16 after the battery cooling work is completed, facilitating the centralized treatment of the waste liquid.

[0071] It should be noted that in this text, the first state of the battery fire protection box refers to the state when both the box cover 2 and the box door 3 are closed at the opening of the box body 1, and the second state of the battery fire protection box refers to the state when the box cover 2 or the box door 3 is opened to expose the opening of the box body 1.

[0072] Among them, the coolant can be water. Alternatively, the coolant can also be other liquids.

[0073] Reference Figures 1 to 3 , the interior of the box body 1 is hollow and forms an accommodation cavity for accommodating the battery. The box body 1 is also provided with an opening communicating with the accommodation cavity, and this opening can be used for taking out and placing the battery. Exemplarily, the top of the box body 1 and at least one side along the circumference are provided with openings communicating with the accommodation cavity. During actual use, the battery can be put into the accommodation cavity or taken out of the accommodation cavity through any one of the openings, facilitating the operation. Specifically, the top of the box body 1 and one side along the circumference are provided with openings communicating with the accommodation cavity.

[0074] For the convenience of description, it is now stipulated that with the battery fire protection box in the first state as the reference, the direction towards the inside of the box body 1 is the inside, and the direction away from the inside of the box body 1 is the outside.

[0075] Figure 4 This is a schematic structural diagram of the battery fire protection box in the third state in this embodiment.

[0076] It should be noted that in this text, the third state of the battery fire protection box refers to the state when both the box cover 2 and the box door 3 are opened.

[0077] Reference Figure 3 and Figure 4 As shown, the box body 1 includes a chassis 11 and three fixed walls 12. Among them, the three fixed walls 12 are arranged circumferentially on the chassis, and the three fixed walls 12 are connected in sequence and enclose a receiving cavity with the chassis 11, having an opening on the top and one circumferential side.

[0078] The chassis 11 includes a bottom frame 111 and a bottom plate 112. Specifically, the bottom frame 111 is in a rectangular frame structure. The bottom plate 112 is fixed to the top of the bottom frame 111.

[0079] In this embodiment, slots 113 are provided on the circumferential side of the bottom frame 111. The slots 113 are used to cooperate with tools such as forklifts to realize the transfer of the battery fire protection box.

[0080] The fixed wall 12 includes a fixing plate 121 and a plurality of reinforcing beams 122. Specifically, the fixing plate 121 stands on the chassis 11. The plurality of reinforcing beams 122 are arranged at intervals on the outer side of the fixing plate 121, which can strengthen the strength of the fixed wall 12.

[0081] The fixed wall 12 is hermetically connected to the chassis 11, which can improve the sealing performance of the battery fire protection box.

[0082] The box body 1 further includes four columns 13. The four columns 13 are correspondingly arranged at the four corners of the chassis 11, and the columns 13 extend vertically. At this time, one column 13 is arranged at each of the opposite ends of each fixed wall 12.

[0083] The box body 1 further includes a plurality of top beams 14. One top beam 14 is fixed to the top of each fixed wall 12, and the top beams 14 are connected between adjacent two columns 13. At this time, each reinforcing beam 122 of the fixed wall 12 is also connected between the chassis 11 and the corresponding top beam 14, which can further strengthen the structural strength of the fixed wall 12.

[0084] Reference Figures 1 to 3 As shown, the box cover 2 is located at the top of the box body 1 and is used to open and close the top opening of the box body 1.

[0085] The box cover 2 is hermetically connected to the box body 1. Specifically, a first seal 51 is provided on the inner side of the box cover 2. When the box cover 2 is closed at the opening of the box body 1, the first seal 51 is pressed and fitted with the box body 1 to fill the gap between the box cover 2 and the box body 1, thereby realizing the hermetic connection between the box cover 2 and the box body 1.

[0086] Exemplarily, the first seal 51 includes a first sealing portion and a second sealing portion that are connected. Among them, an angle is formed between the first sealing portion and the second sealing portion. The first sealing portion is connected to the box cover 2, and the second sealing portion is used to be pressed and fitted with the box body 1. That is, the cross section of the first seal 51 is V-shaped.

[0087] Figure 5 is Figure 3 a side view of the battery fire box along the A-A direction in Figure 6 is Figure 1 a sectional view of the battery fire box along the B-B direction in

[0088] Referring to Figures 1 to 3 and Figure 5 and Figure 6 , in this embodiment, the box cover 2 includes a first cover body 21 and a second cover body 22. The first cover body 21 and the second cover body 22 are used to jointly open and close the opening of the box body 1. Among them, by dividing the box cover 2 into two parts, namely the first cover body 21 and the second cover body 22, the single weights of the first cover body 21 and the second cover body 22 are light, and can be operated by one person, the operation is convenient and simple, and manpower can be saved.

[0089] The first end of the first cover body 21 is hinged to the box body 1, and the first cover body 21 rotates outward to open a part of the opening of the box body 1. Specifically, the first end of the first cover body 21 is hinged to the outside of a top beam 14, so that when the first cover body 21 is closed, the inner side of the first end of the first cover body 21 can be attached to the top of the top beam 14. Exemplarily, the first cover body 21 can be hinged to the box body 1 through structures such as hinges and hinges.

[0090] The first cover body 21 is hermetically connected to the box body 1. Specifically, a first sealing member 51 is provided along the circumference on the inner side of the first cover body 21. When the first cover body 21 is closed, the first sealing member 51 is pressed and attached to the top beam 14 and the top of the box door 3.

[0091] Figure 7 is Figure 6 a schematic enlarged view of the structure at C in

[0092] Referring to Figure 6 and Figure 7 , the first cover body 21 includes a support portion 2124. The support portion 2124 is located at the second end of the first cover body 21, and a support surface is formed on the support portion 2124.

[0093] The first cover body 21 includes a frame body 212 and a top plate 211. Among them, the frame body 212 is in a rectangular frame structure, which includes four support beams 2121 connected end to end. The top plate 211 covers the outside and the periphery of the frame body 212. Optionally, a support surface is formed on the support beam 2121 at the second end of the top plate 211. Specifically, the support beam 2121 includes a fixing part 2122, a connecting part 2123 and a supporting part 2124. The fixing part 2122 and the supporting part 2124 are respectively arranged on the inner and outer sides of the connecting part 2123, and are arranged at the opposite ends of the connecting part 2123. The fixing part 2122 is located at the first end of the connecting part 2123, and the fixing part 2122 is fixed to the top plate 211. The supporting part 2124 is located at the second end of the connecting part 2123 and extends inward beyond the inner sides of the other support beams 2121.

[0094] That is, in this embodiment, the support beam 2121 at the second end of the top plate 211 adopts a Z-shaped beam.

[0095] In other embodiments, the support beam 2121 at the second end of the top plate 211 can also adopt square steel pipe, U-shaped beam, I-shaped beam, etc., and a support plate can be fixed on the outside of the support beam 2121.

[0096] In this embodiment, the first end of the second cover body 22 is hinged to the box body 1, and the first cover body 21 and the second cover body 22 are respectively rotated outward to open the opening of the box body 1. Specifically, the first end of the second cover body 22 is hinged to the outside of a top beam 14, so that when the second cover body 22 is closed, the inner side of the first end of the second cover body 22 can be attached to the top of the top beam 14. Exemplarily, the second cover body 22 can be hinged to the box body 1 through structures such as hinges and hinges.

[0097] The second cover body 22 is hermetically connected to the box body 1. Specifically, a first sealing member 51 is provided along the circumference on the inner side of the second cover body 22. When the second cover body 22 is closed, the first sealing member 51 is pressed and attached to the top beam 14 and the top of the box door 3.

[0098] When the first cover body 21 and the second cover body 22 are closed at the top opening of the box body 1, the second end of the first cover body 21 overlaps with the second end of the second cover body 22. Specifically, the inner side of the second end of the second cover body 22 is attached and overlapped with the support surface. At this time, since the supporting part 2124 extends inward beyond the inner sides of the other support beams 2121 of the frame body 212 of the first cover body 21, when the first cover body 21 and the second cover body 22 overlap and close at the opening of the box body 1, the first cover body 21 and the second cover body 22 can be in the same plane to ensure that the first end of the first cover body 21 and the first end of the second cover body 22 can be attached to the corresponding top beam 14 to ensure the sealing performance of the battery fire protection box.

[0099] The support part 2124 is hermetically connected to the second cover 22. Specifically, a sealing gasket 53 is provided on the support surface of the support part 2124, and the inner side of the second cover 22 is crimped with the sealing gasket 53 to compress the sealing gasket 53, thereby realizing the sealing connection between the support beam 2121 and the second cover 22.

[0100] Specifically, the structure of the second cover 22 is substantially the same as that of the first cover 21, and both include a frame body 212 and a top plate 211. It should be particularly noted that square steel tubes are used for the four support beams 2121 of the frame body 212 of the second cover 22.

[0101] Reference Figure 3 , Figure 4 and Figure 5 , the battery fire protection box further includes a lifting member 6, and the lifting member 6 is hinged between the inner side of the box body 1 and the inner side of the box cover 2. In this embodiment, the number of the lifting members 6 is two, and the two lifting members 6 are arranged in one-to-one correspondence with the first cover 21 and the second cover 22.

[0102] Exemplarily, the lifting member 6 includes a guiding arm 61 and a free arm 62. A guiding groove is formed on the guiding arm 61. The free arm 62 is at least partially located in the guiding groove and is slidably connected to the guiding arm 61. Specifically, the inside of the guiding arm 61 is hollow and one end is open to form the guiding groove.

[0103] The guiding arm 61 is hermetically connected to the free arm 62. Specifically, a sealing guide sleeve is provided at the end of the free arm 62 located in the guiding groove, and the outer periphery of the sealing guide sleeve is closely attached to the inner peripheral wall of the guiding groove. Moreover, a sealing ring is provided at the opening of the guiding arm 61, and the sealing ring is sleeved on the outer periphery of the free arm 62. That is, the gap between the guiding arm 61 and the free arm 62 is filled by the sealing guide sleeve and the sealing ring.

[0104] The outer diameter of the free arm 62 is smaller than the inner diameter of the guiding arm 61, so that there is a gap between the free arm 62 and the guiding arm 61. Under the sealing action of the sealing guide sleeve and the sealing ring, the sealing guide sleeve can divide the guiding groove into two cavities. Compressed gas is filled in the cavity on the side of the sealing guide sleeve away from the sealing ring to increase the pressure in this cavity, so that there is a pressure difference between the two cavities.

[0105] Among them, the guiding arm 61 is hinged to the inner side of the box cover 2, and the hinge is located at one end of the first cover 21 away from the box door 3. The free arm 62 is hinged to the inner side of the box body 1, specifically to the upper part of the inner side of a fixed wall 12, and the fixed arm is distributed opposite to the box door 3.

[0106] In actual application, the guiding arm 61 and the free arm 62 can rotate along with the rotation of the box cover 2, and moreover, the free arm 62 and the guiding arm 61 can relatively slide to extend or shorten the length of the lifting member 6.

[0107] Specifically, when the box cover 2 is closed at the opening of the box body 1, the length of the lifting member 6 is the smallest. At this time, the cavity filled with compressed gas is compressed in space, so that the pressure inside it reaches the maximum value, increasing the pressure difference between the two cavities. During the process of pulling the box cover 2 outwards to open the box cover 2, under the pressure difference on both sides of the sealing guide sleeve of the lifting member 6, the movement of the sealing guide sleeve and the free arm 62 can be realized, so as to automatically extend the length of the lifting member 6. In this way, it can assist the rotation of the first cover body 21 and the second cover body 22, saving the external force applied when manually pulling to open the first cover body 21 and the second cover body 22, making the operation convenient. In addition, after the first cover body 21 and the second cover body 22 are opened, the lifting member 6 can also adapt to support the first cover body 21 and the second cover body 22 to keep the first cover body 21 and the second cover body 22 in an open state.

[0108] In this embodiment, the lifting member 6 is an air spring. However, the present application is not limited thereto. In other embodiments, the lifting member 6 can also be a hydraulic cylinder, a mechanical spring, etc.

[0109] The battery fire protection box further includes a positioning member 71. The positioning member 71 is hinged to the inner side of the box cover 2 and can rotate relative to the box cover 2. One end of the positioning member 71 away from the box cover 2 is detachably connected to the box body 1. Specifically, in the actual application process, after the box cover 2 is opened, the positioning member 71 can be connected to the box body 1 so that the positioning member 71 positions and supports the box cover 2 in an open state, further improving the stability of the box cover 2 in an open state. When it is necessary to close the box cover 2, the positioning member 71 can be detached from the box body 1, and the operation is convenient and simple.

[0110] In this embodiment, the number of the positioning members 71 is two, and the two positioning members 71 are arranged in one-to-one correspondence with the two lifting members 6. Optionally, the positioning member 71 and the first cover body 21 can be hinged through the hinge shaft for hinging the lifting member 6 and the first cover body 21, that is, one hinge shaft simultaneously realizes the hinging of the positioning member 71 and the first cover body 21 and the hinging of the lifting member 6 and the box cover 2. The connection mode between the positioning member 71 and the second cover body 22 adopts the above method.

[0111] Specifically, the positioning member 71 is provided with a clamping portion 711, and the fixed wall 12 of the box body 1 is provided with a snap ring 72. The connection between the positioning member 71 and the box body 1 is realized by the clamping of the clamping portion 711 and the snap ring 72. Optionally, a plurality of clamping portions 711 can be arranged at intervals on the positioning member 71 to facilitate selecting one of the clamping portions 711 to be in clamping cooperation with the snap ring 72 according to needs, so as to adjust the opening degree of the first box cover 2 or the second box cover 2 (the rotation angle relative to the box body 1).

[0112] In this embodiment, pull rings 10 are provided on both the first cover 21 and the second cover 22. By pulling the pull rings 10, the first cover 21 or the second cover 22 can be driven to rotate. That is to say, the pull rings 10 can serve as the force application points for the first cover 21 and the second cover 22 to facilitate the operation of the operator.

[0113] Reference Figure 2 and Figure 4 , the battery fire protection box includes at least one box door 3. A box door 3 is provided at each opening along the circumferential direction of the box body 1. The box door 3 is rotatably connected to the box body 1 and is used to open and close the lateral opening of the box body 1. Specifically, the number of box doors 3 is one. In other embodiments, the number of box doors 3 can also be multiple, as long as the box doors 3 are connected end to end in sequence with the fixed wall 12 and can enclose with the chassis 11 to form a structure with a top opening.

[0114] The first end of the box door 3 is hinged to the box body 1, so that the box door 3 can rotate outward or inward relative to the box body 1 with the hinge point as the rotation center to open and close the lateral opening of the box body 1.

[0115] In this embodiment, the battery fire protection box includes at least two rotating assemblies 20. Each box door 3 is rotatably connected to the box body 1 through at least two rotating assemblies 20.

[0116] Figure 8 is a partial structural schematic diagram of the battery fire protection box in this embodiment.

[0117] Reference Figure 8 , exemplarily, each rotating assembly 20 includes a first hinge seat 201, a second hinge seat 202, a first hinge block 203 and a second hinge block 204. The first hinge seat 201 is provided at the lateral opening end of the box body 1. The second hinge seat 202 is provided at the end of the box door 3. The first hinge block 203 is hinged to the first hinge seat 201. The two opposite ends of the second hinge block 204 are respectively hinged to the second hinge seat 202 and the first hinge block 203. Among them, the first hinge seat 201, the second hinge seat 202, the first hinge block 203 and the second hinge block 204 are used to jointly realize the rotation of the box door 3 relative to the box body 1 in the horizontal plane.

[0118] Specifically, the first hinge seat 201 and the first hinge block 203 are hinged through a first hinge shaft 205, the first hinge block 203 and the second hinge block 204 are hinged through a second hinge shaft 206, and the second hinge block 204 and the second hinge seat 202 are hinged through a third hinge shaft 207. The first hinge shaft 205, the second hinge shaft and the third hinge shaft 207 are parallel to each other.

[0119] That is, in the present application, a three-axis rotating assembly 20 is adopted to achieve the rotatable connection between the door 3 and the box body 1. Compared with using two axes or one axis, which has disadvantages such as a very fixed movement trajectory and poor adjustability, in the three-axis rotating assembly 20 adopted in the present application, the first hinge seat 201 and the first hinge block 203 can rotate relative to each other independently of other components, the first hinge block 203 and the second hinge block 204 can rotate relative to each other independently of other components, and the second hinge block 204 and the second hinge seat 202 can also rotate relative to each other independently of other components. This enables the relative angles between the first hinge seat 201 and the first hinge block 203, between the first hinge block 203 and the second hinge block 204, and between the second hinge block 204 and the second hinge seat 202 to be adjusted respectively. Through this rotating assembly 20, the angular range of the rotation of the door 3 relative to the box body 1 can be increased, thereby increasing the directions for adjusting the rotation of the door 3 through the rotating assembly 20; moreover, through the above-mentioned angular adjustment, the telescopic translation of the door 3 in the direction perpendicular to the first hinge axis 205 can also be achieved, so that the door 3 approaches or moves away from the box body 1, thereby adjusting the relative position between the door 3 and the box body 1, improving the adjustability of the door 3, and facilitating the inner side of the door 3 to closely adhere to the lateral opening end of the box body 1 to improve the sealing performance of the fire battery box.

[0120] Wherein, a first groove is provided on the side of the first hinge seat 201 facing away from the box body 1, and one end of the first hinge block 203 is received in the first groove. The first hinge axis 205 penetrates through the first hinge seat 201 and the end of the first hinge block 203 located in the first groove to achieve the hinge connection between the first hinge seat 201 and the first hinge block 203.

[0121] One end of the second hinge block 204 is provided with a second groove, and the end of the first hinge block 203 facing away from the first hinge seat 201 is received in the second groove. The second hinge axis 206 penetrates through the second hinge block 204 and the end of the first hinge block 203 located in the second groove to achieve the hinge connection between the first hinge seat 201 and the second hinge block 204.

[0122] A third groove is provided on the second hinge seat 202, and the end of the second hinge block 204 facing away from the first hinge block 203 is received in the third groove. The third hinge axis 207 penetrates through the second hinge seat 202 and the end of the second hinge block 204 located in the third groove to achieve the hinge connection between the second hinge seat 202 and the second hinge block 204.

[0123] In this embodiment, the box door 3 is detachably connected to the box body 1 to facilitate locking and unlocking between the box door 3 and the box body 1. Optionally, the battery fire protection box further includes at least one locking component 8, and the second end of the box door 3 and the box body 1 are detachably connected through the locking component 8. At this time, the first end of the box door 3 is hinged to one of the upright columns 13 at the opening end of the box body 1, and the second end of the box door 3 is detachably connected to the other upright column 13 at the opening end of the box body 1. Herein, the second end refers to the end opposite to the first end of the box door 3.

[0124] Reference Figure 2 , wherein, the upper and lower ends and the first end of the box door 3 can also be detachably connected to the box body 1 through at least one locking component 8 respectively to increase the connection strength between the box door 3 and the box body 1.

[0125] Reference Figure 8 , each locking component 8 includes a locking part 81 and a pressing part 82. Specifically, the locking part 81 is rotatably arranged at the lateral opening end of the box body 1, and the locking part 81 can rotate relative to the box body 1. The pressing part 82 is arranged at the edge of the box door 3 and protrudes outwards from the box door 3. An outward-opening clamping interface 821 is arranged on the pressing part 82, and the clamping interface 821 is used for clamping and cooperating with the locking part 81, so as to realize the detachable connection between the box door 3 and the box body 1.

[0126] Wherein, the locking component 8 further includes a connection base 84 and a bolt 85. The connection base 84 is fixed on the upright column 13 of the box body 1, and a receiving groove is formed on the connection base 84 for receiving the end part of the locking part 81. The bolt 85 vertically penetrates through the connection base 84 and the locking part 81 to realize the rotatable connection between the locking part 81 and the connection base 84.

[0127] The locking component 8 further includes a locking piece 83, and the locking piece 83 is movably connected to the end of the locking part 81 far away from the box body 1. When the locking part 81 is clamped and cooperated with the clamping interface 821, the locking piece 83 is located outside the pressing part 82. The outer diameter of the locking piece 83 is larger than the caliber of the clamping interface 821. And since the locking piece 83 can move relative to the locking part 81, this enables the locking piece 83 to move towards the box door 3 to abut against the pressing part 82, so as to tightly press the pressing part 82 and the box body 1 to realize the locking of the box door 3.

[0128] Moreover, since the above-mentioned rotating assembly 20 can also move the door 3 closer to or away from the box body 1, at this time, during the process of closing the door 3 at the side opening of the box body 1, the rotating assembly 20 can be used to adjust the gap between the inner side of the door 3 and the side opening end of the box body 1. Then, by moving the locking member 83 of the locking assembly 8 relative to the locking connector 81, it can adapt to abut against the door 3 after the gap is adjusted. That is, the cooperation between the locking assembly 8 and the rotating assembly 20 can achieve adjustable locking force of the door 3, thereby ensuring that the door 3 can be tightly pressed against the side opening end of the box body 1 when closed, so as to improve the sealing performance of the battery fire protection box.

[0129] Similarly, in the above design, the locking member 83 can also move in a direction away from the door 3 and have a gap with the pressing member 82, so as to facilitate rotating the locking connector 81 to release the clamping connection between the locking connector 81 and the pressing member 82, and realize the unlocking of the door 3. The above operation is convenient and simple, and can be operated by one person, and can quickly realize the unlocking and locking of the door 3.

[0130] Exemplarily, an external thread is provided on the outer periphery of the locking connector 81, a locking groove is provided on the locking member 83, and an internal thread adapted to the external thread is provided on the inner peripheral wall of the locking groove, and the internal thread is screwed with the external thread to realize the movable connection between the locking connector 81 and the locking member 83.

[0131] The locking assembly 8 may further include a gasket 86. The gasket 86 is sleeved on the outer periphery of the pressing member 82 and is located between the locking member 83 and the connection base 84. When the locking connector 81 is clamped and matched with the clamping interface 821, the gasket 86 is located outside the pressing member 82. The outer diameter of the gasket 86 is larger than the outer diameter of the locking member 83, and the outer diameter of the gasket 86 is larger than the diameter of the clamping interface 821. In actual application, as the locking member 83 moves towards the door 3, the locking member 83 can abut against the gasket 86 and make the gasket 86 abut against the outside of the pressing member 82, so as to increase the contact area with the pressing member 82 and improve the locking effect on the door 3.

[0132] In this embodiment, the number of the locking assemblies 8 can be multiple, and the multiple locking assemblies 8 are spaced along the circumferential direction of the door 3. In this way, the door 3 can be locked in the circumferential direction, the locking effect on the door 3 can be improved, and the gap between the door 3 and the box body 1 can be reduced in the circumferential direction, so as to improve the sealing performance of the battery fire protection box.

[0133] The door 3 is hermetically connected to the box body 1, which can improve the sealing performance of the battery fire protection box. Refer to Figure 4 , exemplarily, a second sealing member 52 is provided on the inner side of the door 3. When the door 3 is closed at the opening of the box body 1, the second sealing member 52 is pressed and fitted with the box body 1 to fill the gap between the door 3 and the box body 1, thereby realizing the hermetic connection between the door 3 and the box body 1.

[0134] Exemplarily, the cabinet door 3 includes a frame body 32 and a cabinet board 31. Among them, the frame body 32 has a rectangular frame structure. The cabinet board 31 is fixed to the inner side of the frame body 32. The cabinet door 3 may further include a plurality of reinforcing beams 33. The plurality of reinforcing beams 33 are arranged at intervals on the outer periphery of the cabinet board 31 to strengthen the structural strength of the cabinet door 3. Each reinforcing beam 33 extends vertically, and the upper and lower ends of each reinforcing beam 33 are connected between the frame bodies 32. At least one connecting beam 34 may also be used to connect between adjacent two reinforcing beams 33, and at least one connecting beam 34 may also be used to connect between the reinforcing beam 33 at the edge and the frame body 32. Moreover, each connecting beam 34 is connected to the outer side of the cabinet board 31, so as to further strengthen the structural strength of the cabinet door 3.

[0135] Reference Figures 1 to 5 , a water inlet 35 and a drain port 16 are provided on the cabinet door 3 or the cabinet body 1. The water inlet 35 is used to connect the accommodation cavity and an external coolant source, and the drain port 16 is used to discharge the waste liquid in the accommodation cavity to the outside.

[0136] Reference Figure 2 、 Figure 4 , specifically, the water inlet 35 is located at the upper part of the cabinet door 3, so that the liquid flow can flow from top to bottom in the cabinet body 1 to gradually fill the accommodation cavity. Compared with the way of feeding liquid from the lower part, in this application, feeding liquid from the upper part can avoid the hydraulic pressure of the stored coolant inside the cabinet body 1 affecting the liquid discharge of the water inlet 35, so as to ensure the smoothness and stability of the liquid flow flowing into the cabinet body 1 from the water inlet 35.

[0137] In this embodiment, a first connection joint 41 is connected to the water inlet 35. The first connection joint 41 is used for detachably connecting with the equipment that supplies the external coolant source, so as to facilitate the quick connection and quick disassembly between the battery fire protection box and the equipment that supplies the external coolant source, and the operation is convenient and simple. Exemplarily, the first connection joint 41 adopts a fire protection joint.

[0138] Specifically, the drain port 16 is provided at the lower part of the cabinet body 1, so as to facilitate the complete discharge of the waste liquid in the accommodation cavity and improve the waste discharge effect.

[0139] Figure 9 For Figure 3 the enlarged structural schematic diagram at D in

[0140] Reference Figure 9 , in this embodiment, a second connection joint 42 is provided at the drain port 16. The second connection joint 42 is used for detachably connecting with the equipment that collects the external waste liquid, so as to facilitate the quick connection and quick disassembly between the battery fire protection box and the equipment that collects the external waste liquid, and the operation is convenient and simple. A valve 43 is provided on the second connection joint 42 to realize the on-off of the second connection joint 42 for opening and closing the drain port 16. Exemplarily, the second connection joint 42 adopts a fire protection joint.

[0141] Figure 10 is Figure 3 a schematic enlarged view of the structure at position E in

[0142] Referring to Figure 3 , Figure 4 and Figure 10 , a plurality of bearing beams 17 are arranged at intervals on the bottom wall in the box body 1. The plurality of bearing beams 17 are used to jointly support the battery and can make the battery be spaced above the bottom wall in the box body 1. In actual application, the interval between the battery and the bottom wall in the box body 1 can accommodate the coolant. In this way, the coolant can contact the bottom of the battery, which can increase the contact area between the coolant and the battery, make the battery be completely immersed in the coolant, so as to realize the rapid cooling of the battery and improve the efficiency. In addition, the arrangement of the bearing beams 17 can also prevent the bottom wall of the box body 1 from being damaged due to excessive force when the battery is put in, and can play a protective role for the box body 1. Specifically, the plurality of bearing beams 17 are arranged at intervals on the top of the bottom plate 112. Optionally, each bearing beam 17 is arranged in parallel at intervals with the water inlet 35.

[0143] In this embodiment, each bearing beam 17 is provided with a through hole 171 for the liquid in the accommodating cavity to flow through. In actual application, during the process of injecting the coolant into the accommodating cavity, the coolant can pass through the through hole 171 to quickly and evenly fill the interval between two adjacent bearing beams 17. When discharging the waste liquid outward, the waste liquid can also flow gradually towards the drainage port 16 through the through hole 171, so as to further ensure that the waste liquid in the accommodating cavity can be completely discharged.

[0144] The number of the through holes 171 on each bearing beam 17 can be one. Optionally, the through holes 171 on each bearing beam 17 are all arranged to be aligned with the water inlet 35, so that the waste liquid flowing through the through hole 171 can directly flow towards the drainage port 16, which can improve the efficiency of liquid flow to a certain extent.

[0145] In other embodiments, a plurality of through holes 171 can be arranged at intervals on each bearing beam 17 to improve the efficiency of liquid flow.

[0146] In this embodiment, a concave surface is formed on one side of each bearing beam 17. That is to say, the cross section of the bearing beam 17 is C-shaped, so that the bearing beam 17 can effectively share the load, reduce the stress concentration degree, and improve the bearing capacity of the bearing beam 17. Specifically, the opening directions of the concave surfaces of each bearing beam 17 are the same.

[0147] Referring to Figure 2 , in this embodiment, the battery fire protection box further includes at least one support assembly 9, and at least one support assembly 9 is arranged outside the second end of each box door 3.

[0148] Figure 11 is a schematic structural view of the support assembly 9 in this embodiment.

[0149] refer to Figure 11 The support assembly 9 includes a connecting rod 91 and a supporting wheel 92. The connecting rod 91 is connected to the box door 3. The supporting wheel 92 is rotatably connected to the bottom of the connecting rod 91. The supporting wheel 92 extends downward beyond the bottom of the box door 3. The supporting wheel 92 can fit and roll along the external bearing surface as the box door 3 rotates. This can provide support and traction for the opening and closing of the box door 3, so as to assist the rotation of the box door 3 during the opening and closing process, save the external force applied when manually pulling to open the box door 3, and facilitate operation.

[0150] The external bearing surface mentioned above may be the ground or any other plane.

[0151] Optionally, the support assembly 9 may further include a first positioning frame 93, a second positioning frame 94 and a screw 95. The first positioning frame 93 and the second positioning frame 94 are arranged on the box door 3 at intervals in the vertical direction. The screw 95 is vertically penetrated on the first positioning frame 93. The connecting rod 91 is vertically penetrated on the second positioning frame 94. Among them, the screw 95 is threadedly connected to the first positioning frame 93, the connecting rod 91 is slidably connected to the second positioning frame 94, and the top of the connecting rod 91 is abutted or fixed to the bottom of the screw 95, and the screw 95 can rotate relative to the first positioning frame 93 and rise and fall vertically relative to the first positioning frame 93 to adjust the vertical position of the support wheel 92.

[0152] The above design makes the position of the support wheel 92 adjustable, so that the support wheel 92 can better adapt to the fit with the external load-bearing surface, and improve the auxiliary rotation function and support function of the support wheel 92. In addition, the height position of the support wheel 92 is adjustable, and it can also play an auxiliary support role in the second end of the door 3 after the height is adjusted, so as to ensure that the door 3 is completely closed at the lateral opening of the box body 1, and the side of the second seal 52 away from the door 3 can be completely fit and pressed against the lateral opening end of the box body 1, so as to improve the sealing effect of the battery fire fighting box. At the same time, after the door 3 is locked with the box body 1 through the locking assembly 8, the height of the support wheel 92 can also be adjusted to lift the support wheel 92 upward and away from the load-bearing surface, so as to prevent the support wheel 92 from being damaged due to long-term contact with the load-bearing surface, so as to extend the service life of the support wheel 92.

[0153] It should be noted that the axis of the connecting rod 91 is arranged parallel to the axis of the screw rod 95, so that the screw rod 95 can accurately act on the connecting rod 91 to ensure the transmission effect between the two and improve the structural reliability. In the actual installation process, the axes of the screw rod 95 and the connecting rod 91 can be slightly offset, as long as the screw rod 95 can be connected or abutted with the connecting rod 91.

[0154] In other embodiments, the screw rod 95 is rotatably connected to the first positioning bracket 93, the connecting rod 91 is slidably connected to the second positioning bracket 94, the screw rod 95 is screwed to the connecting rod 91, and the screw rod 95 can rotate relative to the first positioning bracket 93 and the connecting rod 91, so that the connecting rod 91 drives the supporting wheel 92 to move up and down vertically. Among them, the liftable form of the supporting wheel 92 can also be realized by other forms (such as telescopic rods), and the specific setting is determined according to needs, and no more restrictions are made here.

[0155] In this embodiment, the first positioning bracket 93 can be a plate body. The second positioning bracket 94 can be composed of at least one plate body. Specifically, the second positioning bracket 94 includes two positioning plates 941 arranged at intervals in the vertical direction, and the connecting rod 91 passes through the two positioning plates 941 at the same time. In other embodiments, the first positioning bracket 93 and the second positioning bracket 94 can also be structures such as sleeves.

[0156] Optionally, the support assembly 9 can also include a reset member 96. The reset member 96 is sleeved on the outer periphery of the connecting rod 91, and one end of the reset member 96 is connected to one of the positioning plates 941, and the other end is connected to the connecting rod 91 to limit the position of the reset member 96 on the connecting rod 91. Among them, the opposite ends of the reset member 96 can approach or move away from each other as the connecting rod 91 moves up and down.

[0157] Specifically, the reset member 96 can be a compression spring, that is, the top end of the reset member 96 is connected to the connecting rod 91, the bottom end of the reset member 96 is connected to the top of the lower positioning plate 941, and the reset member 96 is in a compressed state. At this time, the reset member 96 wants to restore its deformation and continuously exerts an upward thrust on the connecting rod 91, which makes the connecting rod 91 always abut against the bottom end of the screw rod 95, so that the connecting rod 91 can slide up and down normally as the position of the screw rod 95 is adjusted to realize lifting.

[0158] In other embodiments, the reset member 96 can also be a tension spring, that is, the top end of the reset member 96 is connected to the bottom of the upper positioning plate 941, the bottom end of the reset member 96 is connected to the connecting rod 91, and the reset member 96 is in a stretched state. At this time, the reset member 96 wants to restore its deformation and continuously exerts an upward pulling force on the connecting rod 91, which makes the connecting rod 91 always abut against the bottom end of the screw rod 95, so that the connecting rod 91 can slide up and down normally as the position of the screw rod 95 is adjusted to realize lifting.

[0159] Among them, the support component 9 may further include a limit member 97 disposed on the outer periphery of the connecting rod 91 for connecting with the reset member 96. Among them, the reset member 96 may be abutted and limited between the limit member 97 and the positioning plate 941, or may be fixed between the limit member 97 and the positioning plate 941. The limit member 97 may be annular, or the limit member 97 may also be composed of a plurality of limit bodies arranged at intervals along the circumferential direction of the connecting rod 91. At this time, the plurality of limit bodies are jointly used to abut or connect the reset member 96.

[0160] Optionally, the support component 9 may further include a rotary handle 98 fixed to the top of the screw rod 95. An external force can be applied to the rotary handle 98 to drive the screw rod 95 to rotate relative to the first positioning frame 93 for easy operation.

[0161] Based on the above description, it can be seen that for the battery fire protection box provided in this application, the structural settings of each component itself, the forms of mutual cooperation between each component, etc. are all convenient for operation, simple and fast, and all operations can be performed by one person, saving manpower, and being safe and environmentally friendly.

[0162] It can be seen from the above technical solutions that the present invention has at least the following advantages and positive effects:

[0163] In this application, the opening on the box body of the battery fire protection box can be used for the battery to enter and exit the accommodating cavity. In actual application, the box cover or the box door can be opened to expose the opening of the box body to facilitate the taking and placing operations of the battery. In addition, the openable box door also facilitates the direct removal of the waste in the box body from the lateral opening of the box body to facilitate the cleaning work of the waste.

[0164] Moreover, since the water inlet on the box body can communicate the accommodating cavity with the external coolant source, the coolant can be directly injected into the accommodating cavity through the water inlet, and the coolant is used to irrigate and submerge the battery located in the accommodating cavity. In this way, the battery can be continuously cooled by immersion, and the heat of the battery can be directly taken away by heat exchange between the coolant and the battery, so as to achieve the purpose of quickly cooling the battery. And, this method does not require additional complex equipment, simplifies the structure of the battery fire protection box, and is convenient and simple to operate, reducing the cost.

[0165] In addition, the battery fire protection box in this application is also provided with a drain port, which enables the waste liquid in the accommodating cavity to be discharged outwards through the drain port after the cooling work of the battery is completed, so as to facilitate the centralized treatment of the waste liquid.

[0166] While the invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims, and thus all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A battery fire protection box, characterized in that, Comprising: A box body, which has a hollow interior forming a receiving cavity for accommodating a battery; openings communicating with the receiving cavity are provided at the top of the box body and at least one side along the circumference; A box cover, which is provided at the top opening of the box body and is hinged to the box body, and the box cover is used to open and close the top opening of the box body; At least one box door, one box door is provided at each opening of the box body along the circumference, one end of the box door is rotatably connected to the box body for opening and closing the side opening of the box body; a water inlet and a drain outlet are provided on the box door or the box body, the water inlet is used to connect the receiving cavity and an external coolant source, and the drain outlet is used to discharge the waste liquid in the receiving cavity to the outside.

2. The battery fire protection box according to claim 1, characterized in that, The battery fire protection box includes at least two rotating components, and each box door is rotatably connected to the box body through at least two rotating components; each rotating component includes: A first hinge seat, which is provided at the side opening end of the box body; A second hinge seat, which is provided at the end of the box door; A first hinge block, which is hinged to the first hinge seat; A second hinge block, with its opposite ends respectively hinged to the second hinge seat and the first hinge block; Wherein, the first hinge seat, the second hinge seat, the first hinge block and the second hinge block are used to jointly realize the rotation of the box door relative to the box body in the horizontal plane.

3. The battery fire protection box according to claim 2, wherein, The first hinge seat and the first hinge block are hinged through a first hinge shaft, the first hinge block and the second hinge block are hinged through a second hinge shaft, the second hinge block and the second hinge seat are hinged through a third hinge shaft, and the first hinge shaft, the second hinge shaft and the third hinge shaft are parallel to each other.

4. The battery fire protection box according to claim 1, wherein The first end of the box door is rotatably connected to the box body; The battery fire protection box further includes at least one locking component, and the second end of each box door is detachably connected to the box body through at least one locking component; the locking component includes: A locking piece, which is rotatably provided at the side opening end of the box body, and the locking piece can rotate relative to the box body; A pressing piece, which is provided at the edge of the box door and protrudes outward from the box door; a clamping interface with an outward opening is provided on the pressing piece, and the clamping interface is used for clamping and cooperating with the locking piece.

5. The battery fire protection box according to claim 4, characterized in that, The locking component further includes a locking member, and the locking member is movably connected to the end of the locking piece away from the box body; When the locking piece is clamped and cooperated with the clamping interface, the locking member is located outside the pressing piece; the outer diameter of the locking member is larger than the diameter of the clamping interface; the locking member can move towards the box door to abut against the pressing piece.

6. The battery fire protection box according to claim 1, characterized in that The first end of the box door is rotatably connected to the box body; The battery fire protection box further includes at least one support component, and at least one support component is provided outside the second end of each box door; The support component includes a connecting rod and a support wheel, the connecting rod is connected to the box door, the support wheel is rotatably connected to the bottom of the connecting rod, the support wheel extends downward beyond the bottom of the box door, and the support wheel can roll along an external bearing surface while being attached as the box door rotates.

7. The battery fire protection box according to claim 6, characterized in that, The support assembly further includes a first positioning frame, a second positioning frame and a screw rod. The first positioning frame and the second positioning frame are arranged at intervals in the vertical direction on the box door. The screw rod is vertically penetrated through the first positioning frame. The connecting rod is vertically penetrated through the second positioning frame. Wherein, the screw rod is threadedly connected with the first positioning frame, the connecting rod is slidably connected with the second positioning frame, and the top of the connecting rod abuts or is fixed to the bottom of the screw rod. The screw rod can rotate relative to the first positioning frame and move up and down vertically relative to the first positioning frame to adjust the position of the support wheel in the vertical direction; or The screw rod is rotatably connected with the first positioning frame, the connecting rod is slidably connected with the second positioning frame, and the screw rod is threadedly connected with the connecting rod. The screw rod can rotate relative to the first positioning frame and the connecting rod, so that the connecting rod drives the support wheel to move up and down vertically.

8. The battery fire protection box according to claim 1, characterized in that, The box door is hermetically connected to the box body. A second sealing member is provided on the inner side of the box door. When the box door is closed at the side opening of the box body, the second sealing member is press-fitted and attached to the box body.

9. The battery fire protection box according to claim 1, characterized in that, The water inlet is provided at the upper part of the box body or the box door. A first connection joint is connected to the water inlet, and the first connection joint is used for detachably connecting with a device for supplying a coolant source externally. The drain port is provided at the lower part of the box body or the box door. A second connection joint is provided at the drain port, and the second connection joint is used for detachably connecting with a device for collecting waste liquid externally. A valve is provided on the second connection joint for realizing the on-off of the second connection joint.

10. The battery fire protection box according to claim 1, characterized in that, A plurality of load-bearing beams are arranged at intervals on the bottom wall in the box body, and the plurality of load-bearing beams are used for jointly supporting the battery. Through holes are provided on each of the load-bearing beams, and the through holes are used for the liquid in the accommodating cavity to flow through. A concave surface is formed on one side of each of the load-bearing beams. The opening directions of the concave surfaces of each of the load-bearing beams are the same.

11. The battery fire protection box according to claim 1, characterized in that, The box cover includes a first cover body and a second cover body, and the first cover body and the second cover body are used for jointly opening and closing the top opening of the box body. The first end of the first cover body is hinged to the box body, the first end of the second cover body is hinged to the box body, and the first cover body and the second cover body are respectively rotated outwards to open the opening of the box body. When the first cover body and the second cover body are closed at the opening of the box body, the second end of the first cover body overlaps with the second end of the second cover body.

12. The battery fire protection box according to claim 11, characterized in that, The first cover body includes a support portion, the support portion is located at the second end of the first cover body, and a support surface is formed on the support portion. When the first cover body and the second cover body are closed at the opening of the box body, the support surface is used for fitting and overlapping with the inner side of the second end of the second cover body. The support portion is hermetically connected to the second cover body. A gasket is provided on the supporting surface, and the inner side of the second cover body is press-connected to the gasket so that the gasket is compressed to achieve the sealed connection between the supporting part and the second cover body; and / or, the box cover is sealed to the box body; a first sealing member is provided on the inner side of the box cover, and when the box cover is closed at the opening of the box body, the first sealing member is press-connected and fitted to the box body.

13. The battery fire protection box according to claim 1, characterized in that, The battery fire protection box includes a jacking member, and the jacking member is hinged between the inner side of the box body and the inner side of the box cover; The jacking member includes a guiding arm and a free arm. A guiding groove is formed on the guiding arm. At least a part of the free arm is located in the guiding groove and is slidably connected to the guiding arm; the guiding arm is hinged to the inner side of the box cover, and the free arm is hinged to the inner side of the box body; Wherein, the guiding arm and the free arm can rotate along with the rotation of the box cover, and moreover, the free arm and the guiding arm can relatively slide to extend or shorten the length of the jacking member.

14. The battery fire protection box according to claim 13, wherein The battery fire protection box further includes a positioning member. The positioning member is hinged to the inner side of the box cover and can rotate relative to the box cover. One end of the positioning member away from the box cover is detachably connected to the box body. The positioning member is used to position and support the box cover in the open state.

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