Marine air-cooled battery pack

Abstract

The marine air-cooled battery pack is characterized in that a box cover is arranged on the upper surface of a bottom plate, an outer folding edge is arranged on the periphery of the box cover and is fixedly connected with the bottom plate through bolts, supporting protrusions are arranged on the two sides and the middle position of a groove of the bottom plate, and a thickened protrusion is further arranged in the groove of the bottom plate. The bottom plate is located at the positions of the supporting protrusions and the thickening protrusions, screw holes are formed in the two ends of the bottom plate, a plurality of screw holes are evenly formed in the two sides of the bottom plate, bolts penetrate through the outer folding edges and are in threaded connection with the corresponding screw holes, and cooling fins are evenly arranged in grooves of the bottom plate. The box cover is reasonable in structure, saves more energy compared with a fan for heat dissipation, has good sealing performance and is particularly suitable for a humid environment on a ship, meanwhile, the supporting protrusions and the thickened protrusions are provided with the screw holes so that the outer folded edges of the box cover can be directly connected through the bolts, and the box cover is convenient to use. Nut matching is not needed, and the convenience of mounting and dismounting is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a marine air-cooled battery pack. Background Art

[0002] As a core component of electric boat propulsion, the safety and reliability of power battery packs are key breakthroughs in this field. Air-cooled battery packs are composed of multiple cells. To prevent dangerous overheating during charging and discharging, traditional battery packs often use fans for heat dissipation. This, on the one hand, allows moisture molecules to easily enter the battery casing, and on the other hand, it is not conducive to energy conservation. Furthermore, the housing and base of traditional air-cooled battery packs are typically connected with bolts and nuts, making installation inconvenient. Therefore, an improved technology is urgently needed to address this existing problem. Utility Model Content

[0003] The purpose of the utility model is to provide a marine air-cooled battery pack, which is more energy-efficient than fan cooling and is particularly suitable for humid environments on board ships. Heat dissipation can be achieved even when the box cover is fully sealed. At the same time, screw holes are provided through the supporting protrusions and the thickened protrusions to facilitate direct connection of the outer folding edge of the box cover with bolts without the need for nuts. The convenience of installation and disassembly is greatly improved, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a marine air-cooled battery pack, comprising a battery housing, a battery module and a lifting foot;

[0005] The battery case includes a box cover and a bottom plate, the box cover is arranged on the upper surface of the bottom plate, the outer periphery of the box cover is provided with an outer folding edge and is fastened to the bottom plate by bolts, a groove is provided on the lower surface of the bottom plate, support protrusions are provided on both sides and in the middle of the groove of the bottom plate, a thickening protrusion is further provided in the groove of the bottom plate, the bottom plate is located at the support protrusion and the thickening protrusion and is provided with screw holes at both ends, a plurality of screw holes are evenly provided on both sides of the bottom plate, the bolts pass through the outer folding edge and are threadedly connected to the corresponding screw holes, heat dissipation fins are evenly arranged in the groove of the bottom plate, the heat dissipation fins, the support protrusion and the thickening protrusion are parallel to each other, the battery module is connected to the bottom plate and arranged in the box cover;

[0006] There are several lifting feet, the cross section of each lifting foot is C-shaped, and each lifting foot is connected to the outer folding edge and the corresponding position of the bottom plate through bolts.

[0007] Preferably, the utility model provides a marine air-cooled battery pack, wherein the lengths of the supporting protrusions, the thickened protrusions and the heat dissipation fins are consistent.

[0008] Preferably, the utility model provides a marine air-cooled battery pack, wherein the horizontal height of the bottom of the supporting protrusion is smaller than the horizontal height of the bottom of the thickened protrusion and the heat dissipation fin.

[0009] Preferably, the utility model provides a marine air-cooled battery pack, wherein a power interface and a communication interface are provided at one end of the box cover.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] (1) Several supporting protrusions and thickening protrusions are provided on the lower surface of the bottom plate. At the same time, heat dissipation fins are evenly arranged in the grooves of the bottom plate. Through the grooves and heat dissipation fins, a large degree of heat exchange can be achieved between the cold air and the battery module, which greatly improves the heat dissipation performance of the battery pack. It is more energy-efficient than fan heat dissipation and is particularly suitable for the humid environment on board. Heat dissipation can also be achieved when the box cover is fully sealed.

[0012] (2) Screw holes are provided through the supporting protrusions and the thickened protrusions so that the outer folding edge of the box cover can be directly connected by bolts without the need for nuts, which greatly improves the convenience of installation and disassembly.

[0013] (3) Several lifting feet are also provided on both sides of the box to facilitate connection with the cabinet or external bracket to ensure the stability of the battery pack when the ship shakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a side view of the structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model from above.

[0017] In the figure: box cover 1, bottom plate 2, outer folding edge 3, groove 4, support protrusion 5, thickened protrusion 6, screw hole 7, heat dissipation fin 8, battery module 9, lifting foot 10, power interface 11, communication interface 12. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] It should be noted that, in the description of the present invention, the terms "inside", "outside", "up", "down", "both sides", "one end", "the other end", "left", "right", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0020] See also Figure 1-3 , the utility model provides a technical solution: a marine air-cooled battery pack, comprising a battery shell, a battery module 9 and a lifting foot 10;

[0021] The battery case includes a box cover 1 and a bottom plate 2. The box cover 1 is arranged on the upper surface of the bottom plate 2. The outer periphery of the box cover 1 is provided with an outer folding edge 3 and is fastened to the bottom plate 2 by bolts. A groove 4 is provided on the lower surface of the bottom plate 2. Support protrusions 5 are provided on both sides and in the middle of the groove 4 of the bottom plate 2. A thickening protrusion 6 is also provided in the groove 4 of the bottom plate 2. The bottom plate 2 is located at the support protrusion 5 and the thickening protrusion 6 and is provided with screw holes 7 at both ends. A number of screw holes 7 are evenly opened on both sides of the bottom plate 2. The bolts pass through the outer folding edge 3 and are threadedly connected to the corresponding screw holes 7. The groove 4 of the bottom plate 2 is evenly arranged with heat dissipation. The fins 8, the heat dissipation fins 8, the support protrusions 5 and the thickened protrusions 6 are parallel to each other. The lengths of the support protrusions 5, the thickened protrusions 6 and the heat dissipation fins 8 are consistent to ensure the flatness of both ends of the bottom plate 2. The horizontal height of the bottom of the support protrusions 5 is less than the horizontal height of the bottom of the thickened protrusions 6 and the heat dissipation fins 8, so that the whole is supported and lifted by the support protrusions 5, so that the hot air is smoothly discharged from both ends and both sides of the groove 4. The battery module 9 is connected to the bottom plate 2 and is arranged in the box cover 1. One end of the box cover 1 is provided with a power interface 11 and a communication interface 12 to achieve connection with electrical devices and a host computer;

[0022] There are several lifting feet 10, and the cross-section of the lifting feet 10 is C-shaped to achieve a suspended support connection with the cabinet or external bracket. The lifting feet 10 are connected to the corresponding positions of the outer folding edge 3 and the base plate 2 by bolts. The connection is direct and no nuts are required, which facilitates the installation of the lifting feet 10.

[0023] Assembly method and principle of use: Prepare the box cover 1, bottom plate 2 and lifting feet 10, then install the battery module 9 on the upper surface of the bottom plate 2, install the corresponding battery safety module and battery sampling module in the box cover 1, then cover the outside of the battery module 9, and then align the lifting feet 10 with the connection holes of the outer folding edge 3, and fasten the outer folding edge 3 of the box cover 1 to the bottom plate 2 with bolts, and at the same time install the lifting feet 10 in the corresponding position of the outer folding edge 3 to complete the assembly. When in use, the bottom of the bottom plate 2 is supported by the support protrusion 5, and the two sides are also fastened to the cabinet by the lifting feet 10. Cooling is achieved by transferring the heat of the battery cell to the air through natural convection through the heat dissipation fins 8 at the bottom of the box body 2. The utility model has a reasonable structure. A plurality of supporting protrusions 5 and thickened protrusions 6 are provided on the lower surface of the base plate 2. At the same time, heat dissipation fins 8 are evenly arranged in the grooves 4 of the base plate 2. Through the grooves 4 and the heat dissipation fins 8, a greater degree of heat exchange can be achieved between the cold air and the battery module, which greatly improves the heat dissipation performance of the battery pack. It is more energy-efficient than fan heat dissipation and is particularly suitable for humid environments on board. The box cover 1 can also achieve heat dissipation when it is fully sealed. At the same time, screw holes 7 are opened through the supporting protrusions 5 and the thickened protrusions 6, so that the outer folding edge 3 of the box cover 1 can be directly connected by bolts without the need for nuts, which greatly improves the convenience of installation and disassembly. A plurality of lifting feet 10 are also provided on both sides of the box body to facilitate connection with a cabinet or external bracket to ensure the stability of the battery pack when the ship shakes.

[0024] Anything not described in detail in the present invention is well known to those skilled in the art.

[0025] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A marine air-cooled battery pack, characterized by: It comprises a battery housing, a battery module (9) and a lifting foot (10); The battery housing comprises a box cover (1) and a bottom plate (2), wherein the box cover (1) is arranged on the upper surface of the bottom plate (2), an outer folding edge (3) is arranged on the periphery of the box cover (1) and is fastened to the bottom plate (2) by bolts, a groove (4) is provided on the lower surface of the bottom plate (2), support protrusions (5) are provided on both sides and in the middle of the groove (4) of the bottom plate (2), a thickening protrusion (6) is further provided in the groove (4) of the bottom plate (2), and the bottom plate (2) is located on the support protrusions. (5) and the thickened protrusion (6) and are provided with screw holes (7) at both ends, the bottom plate (2) is provided with a plurality of screw holes (7) evenly on both sides, the bolts pass through the outer folding edge (3) and are threadedly connected with the corresponding screw holes (7), the heat dissipation fins (8) are evenly arranged in the groove (4) of the bottom plate (2), the heat dissipation fins (8), the supporting protrusion (5) and the thickened protrusion (6) are parallel to each other, and the battery module (9) is connected to the bottom plate (2) and is arranged in the box cover (1); There are a plurality of hoisting feet (10), each of which has a C-shaped cross section. The hoisting feet (10) are connected to corresponding positions of the outer folding edge (3) and the bottom plate (2) through bolts.

2. The marine air-cooled battery pack according to claim 1, characterized in that: The supporting protrusion (5), the thickening protrusion (6) and the heat dissipation fins (8) are of the same length.

3. The marine air-cooled battery pack according to claim 1, characterized in that: The horizontal height of the bottom of the supporting protrusion (5) is smaller than the horizontal height of the bottom of the thickened protrusion (6) and the heat dissipation fin (8).

4. The marine air-cooled battery pack according to claim 1, characterized in that: One end of the box cover (1) is provided with a power interface (11) and a communication interface (12).

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