Battery box capable of conveniently disassembling and assembling maintenance switch

Abstract

The invention discloses a battery box convenient to disassemble and assemble a maintenance switch. The battery box comprises a bottom frame, a battery pack, a top frame, a water cooling unit, a kettle and a lifting mechanism. A receding opening communicated with the battery installation space is formed in the top frame, the battery pack is arranged in the battery installation space and provided with a maintenance switch, the maintenance switch is exposed to the receding opening, the water cooling unit is arranged on the top frame and connected to the battery pack through a circulating water cooling pipe, and the kettle is arranged on the top frame and shields the receding opening. The kettle is connected to the circulating water cooling pipe, and the lifting mechanism is arranged on the top frame and is in transmission connection with the kettle to drive the kettle to ascend and descend, so that the kettle gets close to or away from the avoiding opening. According to the electric kettle, the lifting mechanism can drive the kettle to ascend and descend, the kettle can be conveniently arranged, meanwhile, disassembly and assembly of the maintenance switch are not affected, the maintenance switch can be hidden or exposed through the lifting movement of the kettle, protection of the maintenance switch is facilitated, and disassembly and assembly of the maintenance switch are also facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a battery box with a switch that is convenient for disassembly, assembly and maintenance. Background Art

[0002] The battery box usually includes a frame and a battery pack. The frame has a battery installation space, the battery pack is arranged in the battery installation space, and the frame has a top frame located on the top of the battery box. A maintenance switch (usually called MSD) is usually set on the battery pack. The main function of the maintenance switch is to manually control the output power outage of the high-voltage battery to facilitate related maintenance work. Once the maintenance switch is unplugged, the output voltage of the battery pack will immediately drop to 0 to ensure system safety. If the maintenance switch of the battery pack needs to be set on the top side, the setting of the top frame blocks the top structure of the battery pack, making it difficult to disassemble and assemble the maintenance switch, which is not conducive to improving maintenance efficiency. For example, the utility model patent with application number 202121989052.8 provides an on-board energy system with a replaceable battery box, which sets the water cooling unit at the bottom of the battery box. If a maintenance switch is set at the top of the battery pack, the frame will block the top of the battery pack, making it inconvenient to disassemble and assemble the maintenance switch. For another example, the invention patent with application number 202410201848.4 provides a battery box, whose high-voltage box and water-cooling unit are both arranged at the bottom of the frame. If a maintenance switch is set on the top of the battery pack, the frame will block the top of the battery pack, making it inconvenient to disassemble and assemble the maintenance switch. Summary of the Invention

[0003] In order to solve one of the above technical problems, the present application provides a battery box with a switch that is easy to disassemble and repair.

[0004] The present invention adopts the following technical solutions:

[0005] A battery box with a switch that is convenient for disassembly and maintenance, comprising:

[0006] bottom frame;

[0007] A top frame, the top frame being located on top of the bottom frame and connected to the bottom frame, a battery installation space being formed between the top frame and the bottom frame, and a relief opening being provided on the top frame and communicating with the battery installation space;

[0008] a battery pack, the battery pack being disposed in the battery installation space, the battery pack having a maintenance switch, the maintenance switch being exposed to the avoidance opening;

[0009] A water cooling unit, the water cooling unit is arranged on the top frame and connected to the battery pack via a circulating water cooling pipe;

[0010] A kettle, the kettle being arranged on the top frame, the kettle shielding the avoidance opening, and the kettle being connected to the circulating water cooling pipe;

[0011] A lifting mechanism is provided on the top frame, and the lifting mechanism is in transmission connection with the kettle to drive the kettle to move up and down so that the kettle approaches or moves away from the avoidance opening.

[0012] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0014] Figure 1 A front view of a battery box provided in an embodiment of the present application is shown;

[0015] Figure 2 A bottom view of a battery box provided in an embodiment of the present application is shown;

[0016] Figure 3 A top view of a battery box provided in an embodiment of the present application is shown;

[0017] Figure 4 A schematic structural diagram of the top frame of the battery box provided in an embodiment of the present application is shown;

[0018] Figure 5 Show Figure 4 Enlarged view of part A in the middle;

[0019] Figure 6 A schematic diagram showing the three-dimensional structure of a water cooling unit for a battery box provided in an embodiment of the present application is shown;

[0020] Figure 7 A schematic structural diagram of a battery box frame provided in an embodiment of the present application is shown;

[0021] Figure 8 A schematic diagram showing the coordinated structure of the water cooling unit and the high-voltage box in the battery box provided in an embodiment of the present application is shown;

[0022] Figure 9 A schematic diagram of a local structure of a battery box provided in an embodiment of the present application is shown;

[0023] Figure 10 A schematic diagram of the three-dimensional structure of a battery box provided in an embodiment of the present application is shown;

[0024] Figure 11 An enlarged view of part B of the battery box provided in an embodiment of the present application is shown;

[0025] Figure 12 A schematic structural diagram showing a sealing plate assembly provided on a battery box according to an embodiment of the present application is shown;

[0026] Figure 13 A schematic diagram showing a hidden portion of a sealing plate in a battery box provided in an embodiment of the present application;

[0027] Figure 14 Show Figure 13 Enlarged view of middle C part;

[0028] Figure 15 Another three-dimensional perspective view of the battery box provided by an embodiment of the present application is shown;

[0029] Figure 16 Show Figure 15 Enlarged view of the middle D part;

[0030] Figure 17 A schematic diagram showing a partial structure of the top frame of the battery box provided in an embodiment of the present application is shown;

[0031] Figure 18 A diagram showing a partial state of the top frame of the battery box provided by an embodiment of the present application hiding the first column;

[0032] Figure 19 Another partial structural diagram of the battery box provided in an embodiment of the present application is shown;

[0033] Figure 20 A schematic diagram showing the matching structure of the top frame and cables in the battery box provided in an embodiment of the present application is shown;

[0034] Figure 21 A partial top view of the top frame of the battery box provided in an embodiment of the present application is shown;

[0035] Figure 22 A schematic diagram showing the structure of a battery pack of a battery box provided in an embodiment of the present application;

[0036] Figure 23 A schematic diagram showing a partial structure of a protective cover assembly hidden in the top frame of a battery box provided in an embodiment of the present application;

[0037] Figure 24 A schematic diagram showing the structure of a battery box provided in an embodiment of the present application with a kettle in a raised state on the top frame;

[0038] Figure 25 A partial diagram showing a bottom frame of a battery box provided by an embodiment of the present application, viewed from above;

[0039] Figure 26 Another partial view showing a bottom frame of a battery box provided by an embodiment of the present application from a bottom perspective;

[0040] Figure 27 A schematic structural diagram of a high-voltage box of a battery box provided in an embodiment of the present application is shown;

[0041] Figure 28 A top view of a high-voltage box in a battery box provided in an embodiment of the present application is shown;

[0042] Figure 29 A schematic diagram showing the matching structure of the battery box and the battery box base in the battery box provided in an embodiment of the present application is shown;

[0043] Figure 30 A schematic diagram showing a portion of the structure of the bottom frame of the battery box provided in an embodiment of the present application is shown;

[0044] Figure 31 An exploded view of a precise positioning device in a battery box provided by an embodiment of the present application is shown;

[0045] Figure 32 A cross-sectional view showing the mating structure of the lock tongue of the battery box and the battery box base provided in an embodiment of the present application;

[0046] Figure 33 A cross-sectional view showing a partial structure of a battery box provided in an embodiment of the present application;

[0047] Figure 34 A partial schematic diagram of the appearance of the locking mating groove of the battery box provided in an embodiment of the present application is shown.

[0048] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0051] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0052] Example 1

[0053] See also Figures 1 to 24 As shown, an embodiment of the present application provides a battery box 100 with a switch 25 that is easy to disassemble and maintain, including: a bottom frame 11, a top frame 12, a battery pack 2, a water cooling unit 3, a kettle 10 and a lifting mechanism 20. The top frame 12 is located at the top of the bottom frame 11 and is connected to the bottom frame 11. A battery installation space is formed between the top frame 12 and the bottom frame 11. An avoidance opening 1216 connected to the battery installation space is provided on the top frame 12. The battery pack 2 is provided in the battery installation space. The battery pack 2 has a maintenance switch 25. The maintenance switch 25 is exposed to the avoidance opening 1216. The water cooling unit 3 is provided on the top frame 12. The water cooling unit 3 is connected to the battery pack 2 through a circulating water cooling pipe 36. The kettle 10 is provided on the top frame 12. The kettle 10 blocks the avoidance opening 1216. The kettle 10 is connected to the circulating water cooling pipe 36. The lifting mechanism 20 is provided on the top frame 12. The lifting mechanism 20 and the kettle 10 are transmission-connected to drive the kettle 10 to move up and down so that the kettle 10 approaches or moves away from the avoidance opening 1216.

[0054] In the present application, the maintenance switch 25 of the battery pack 2 is provided on one side of the top of the battery pack 2, corresponding to the avoidance opening 1216 on the top frame 12. The kettle 10 is provided on top of the avoidance opening 1216, making full use of the space of the top frame 12. However, the location of the kettle 10 blocks the avoidance opening 1216, making it difficult to remove the maintenance switch 25. If the height of the kettle 10 is increased, although the distance from the avoidance opening 1216 can be increased, the height of the entire battery box 100 will be increased, affecting the application of the battery box 100. To address these practical problems, the embodiment of the present application provides a lifting mechanism 20 on the top frame 12. The lifting mechanism 20 is connected to the kettle 10. The lifting mechanism 20 can drive the kettle 10 to move up and down to hide or expose the maintenance switch 25, which is beneficial to protecting the maintenance switch 25 and also facilitates the disassembly and assembly of the maintenance switch 25. When the switch 25 needs to be disassembled and repaired, the kettle 10 can be lifted by the lifting mechanism 20 to expose the escape opening 1216, making it convenient for a person to reach into the escape opening 1216 and remove the maintenance switch 25. After the maintenance work is completed, the maintenance switch 25 can be reset, and then the lifting mechanism 20 can be retracted to drive the kettle 10 to reset, and the kettle 10 covers the escape opening 1216.

[0055] In some possible embodiments, the battery box 100 for convenient disassembly and maintenance of the switch 25 includes a protective cover assembly 125, which is arranged on the top frame 12 and covers the avoidance opening 1216, and the protective cover assembly 125 has an operating opening 12521, and the operating opening 12521 is connected to the avoidance opening 1216, the kettle 10 is arranged on the protective cover assembly 125, and the lifting mechanism 20 is arranged on the protective cover assembly 125, and the lifting mechanism 20 drives the protective cover assembly 125 to approach or move away from the protective cover assembly 125 to cover or move away from the operating opening 12521.

[0056] The protective cover assembly 125 covers and protects the escape opening 1216. The kettle 10 is positioned on top of the protective cover assembly 125. An access port 12521 is provided on the protective cover assembly 125, located directly above the escape opening 1216. By raising the kettle 10, a user can access the maintenance switch 25 on the battery pack 2 by passing through the access port 12521 and the escape opening 1216. The protective cover assembly 125 also covers and protects the circulating water cooling pipe 36.

[0057] In some possible embodiments, the lifting mechanism 20 includes a scissors frame, the bottom end of the scissors frame is slidably connected to the protective cover assembly 125, and the top end of the scissors frame is movably connected to the kettle 10. The scissors frame has a folded state and an extended state. In the folded state, the kettle 10 covers the operating port 12521, and in the extended state, the kettle 10 is away from the operating port 12521.

[0058] The embodiment of the present application utilizes a scissor frame to achieve the lifting and lowering control of the kettle 10. This embodiment has a simple structure, is safe and reliable, supports manual operation, and does not require an electric drive structure. For example, when it is necessary to disassemble and repair the switch 25, it is only necessary to manually lift the kettle 10, and the scissor frame will passively deform accordingly.

[0059] In some possible embodiments, the protective cover assembly 125 is provided with first brackets 12522 on both sides of the operating port 12521, each having a first groove. Second brackets 101 are provided on both sides of the kettle 10, each having a second groove. The scissor frame includes a first rod 201 and a second rod 202 hingedly connected at the middle. One end of the first rod 201 is movably connected to the first groove, and the other end of the first rod 201 is hinged to the second bracket 101. One end of the second rod 202 is slidably connected to the second groove, and the other end of the second rod 202 is hinged to the first bracket 12522. The scissor frame of the present application has only two crossed rods on the same side, which is relatively simple in structure, low in cost, and high in reliability.

[0060] In some possible implementations, in the folded state, one end of the fastener 1113 can pass through the second bracket 101 and be connected to the protective cover assembly 125 , while the other end of the fastener 1113 is confined to the second bracket 101 .

[0061] Under normal conditions, the kettle 10 is fixed to the protective cover assembly 125 by fasteners, and the kettle 10 will not easily detach from the protective cover. When the switch 25 needs to be disassembled and repaired, it is necessary to first remove the various fasteners connecting the kettle 10 and the protective cover assembly 125 to release the connection between the kettle 10 and the protective cover assembly 125.

[0062] In some possible embodiments, combined Figure 23 and 24 As shown, a connecting nozzle is provided on the side of the kettle 10 facing the operating port 12521, and the circulating water cooling pipe 36 has an outlet pipe and a return pipe. An extension pipe section 363 is connected to one of the outlet pipe and the return pipe. The extension pipe section 363 is located on the inner side of the protective cover assembly 125, and the extension pipe section 363 is connected to the connecting nozzle of the kettle 10.

[0063] In this embodiment, a connecting nozzle is provided at the bottom of the kettle 10 to connect to the circulating water cooling pipe 36 and is used to inject coolant into the circulating water cooling pipe 36. Considering that the need to raise and lower the kettle 10 would pull on the extension pipe section 363, which could easily cause the extension pipe section 363 to bend and break, or even cause the extension pipe section 363 to separate from the connecting nozzle, in this embodiment of the application, at least a portion of the extension pipe section 363 is configured as a bellows. The bellows are flexible and easily deformed and bent, preventing excessive pulling forces between the extension pipe section and the connecting nozzle, thereby improving safety and extending service life.

[0064] Example 2

[0065] like Figures 1 to 10 As shown, the embodiment of the present application provides a battery box 100 with a small height, including: a bottom frame 11, a top frame 12, a battery pack 2, and a water cooling unit 3. The high-voltage box 4 is arranged on the bottom frame 11, and the top frame 12 is located on top of the bottom frame 11 and connected to the bottom frame 11. The top frame 12 and the bottom frame 11 form a battery installation space between the top frame 12 and the bottom frame 11. The battery pack 2 is arranged in the battery installation space, and the water cooling unit 3 is arranged on the top frame 12.

[0066] The battery box 100 of the present application sets the high-voltage box 4 on the bottom frame 11, and sets the water cooling unit 3 on the top frame 12. The water cooling unit 3 does not occupy the space of the bottom frame 11, which is conducive to reducing the height of the bottom frame 11, making the center of gravity of the battery box 100 lower, which is conducive to enhancing the structural strength of the entire system, reducing the vibration fatigue of the entire system, and improving space utilization, making the battery box 100 easy to maintain and more efficient to assemble. In the embodiment of the present application, the water cooling unit 3 is set on the inner side of the top frame 12, making full use of the space of the top frame 12, reducing the height of the battery box 100, and optimizing the overall design of the vehicle. It can reduce the air resistance of the vehicle during driving, thereby improving energy efficiency and endurance.

[0067] In some possible embodiments, combined Figures 3 to 5 As shown, the top frame 12 has an upper bottom frame 121 and an upper peripheral side frame 122 located around the edge of the upper bottom frame 121. A top cavity is formed between the upper bottom frame 121 and the upper peripheral side frame 122. The water cooling unit 3 is arranged in the top cavity, and the water cooling unit 3 does not extend out of the upper edge of the top frame 12.

[0068] The water cooling unit 3 of the present application is embedded in the top cavity and does not protrude from the top frame 12. It has a small height and is not prone to interference with external structures, and the structural design is more reasonable.

[0069] The structure of the water-cooling unit 3 is well known in the art. This application only adjusts the layout of the arrangement positions of the various structural components of the water-cooling unit 3, and does not change the structures of the various components. This application will not go into details about the structure and principle of the water-cooling unit. The various structural components of the water-cooling unit, such as the compressor, condenser, cooling fan, etc., are all arranged in the same casing, and there is no need to avoid other structures in the top frame 12, so there is no need to break them up. The various structural components in the top frame 12 give priority to the arrangement of the water-cooling unit 3, and the water-cooling unit 3 can be arranged in the middle position of the top frame 12. The high-pressure box 4 is arranged at the bottom, and the water-cooling unit 3 is arranged at the top. The two do not interfere with each other, which facilitates assembly.

[0070] In some possible implementation schemes, a cooling fan is provided inside the water cooling unit 3 , and the rotation axis of the cooling fan is perpendicular to the upper base frame 121 .

[0071] The radial dimension of the rotation area of the cooling fan in the water-cooled unit 3 is relatively large. If the rotation axis of the cooling fan is set horizontally and installed on the bottom frame, the height dimension of the bottom frame needs to be increased so that the height of the bottom frame is greater than the radial dimension of the rotation area of the cold zone fan in order to fully accommodate the water-cooled unit 3. In order to reduce the bottom frame, in the embodiment of the present application, the water-cooled unit 3 is first set on the top frame, so that the height of the bottom frame can be easily reduced. At the same time, the present application adjusts the installation direction of the cooling fan in the water-cooled unit so that the rotation axis of the cooling fan is a vertical line. The thickness of the cooling fan blade is extremely small, which is conducive to reducing the height dimension of the casing of the water-cooled unit, so that the casing of the water-cooled unit can be a flat structure. Therefore, there is no need to increase the height dimension of the top frame 12 too much. The increased height of the top frame is much smaller than the reduced height of the bottom frame, which is conducive to reducing the height of the entire battery box 100.

[0072] In some possible implementations, the water cooling unit 3 has a casing, the bottom casing of which is supported on the upper bottom frame 121 , the top casing of which is exposed to the top frame 12 , and the air outlet 31 is provided on the top casing.

[0073] like Figure 4 As shown, an air outlet 31 is provided on one side of the top of the housing of the water-cooling unit 3, without any obstructing structure. When the cooling fan rotates at high speed, the airflow is smoothly discharged from the top of the battery box 100. The rotation axis of the cooling fan can pass through the air outlet 31, so that the airflow driven by the cooling fan can be smoothly discharged from the housing through the air outlet 31.

[0074] In some possible embodiments, such as Figure 10 As shown, the water-cooling unit 3 has a peripheral shell connecting the top and bottom shells, and an air inlet 34 is provided on the peripheral shell. The peripheral shell can be understood as the shell wall of the casing that is perpendicular to the upper bottom frame 121. The peripheral shell partially contacts the upper peripheral frame 122, while the remaining portion has a large gap with the upper peripheral frame 122. The air inlet 34 can be provided on the peripheral shell with a large gap with the upper peripheral frame 122. The location of the air inlet 34 is unobstructed, allowing for smooth air intake.

[0075] In some possible embodiments, combined Figure 4 and Figure 6As shown, the water-cooling unit 3 is arranged in the middle of the upper base frame 121 along the length direction. The upper peripheral side frame 122 has two long frame sides 1221 and two short frame sides 1222. The peripheral side shell of the water-cooling unit 3 has two opposing first side shells 32 and two opposing second side shells 33. The two second side shells 33 are respectively attached to the two long frame sides 1221. The two first side shells 32 have gaps with the corresponding short frame sides 1222, and an air inlet 34 is provided on one of the first side shells 32. The large gap between the first side shell 32 and the short frame side 1222 can meet the requirement of smooth air intake of the air inlet 34.

[0076] In some possible implementation schemes, an air inlet is also provided on the second side shell 33 , and a vent is provided on the long frame side 1221 , which is connected to the air inlet on the second side shell 33 .

[0077] In this embodiment, although the second side shell 33 is obscured by the long frame edge 1221, a vent can be provided on the long frame edge 1221. Providing an air inlet on the second side shell 33 opposite the vent also provides an air intake path. Providing at least two vents on the water cooling unit 3, oriented perpendicularly to each other, facilitates air intake from different directions on the water cooling unit 3 in various environments for the battery box 100, eliminating the risk of air flow obstruction.

[0078] In some possible embodiments, such as Figure 4 As shown, the battery box 100 with a small height dimension includes a limiting beam 123, which is detachably connected to the upper peripheral side frame 122. The limiting beam 123 is limited to both sides of the water-cooling unit 3. Connecting ears are provided on the water-cooling unit 3, which can be directly fixed to the top frame 12 by fasteners. The purpose of providing the limiting beam 123 is to reinforce the water-cooling unit 3 and improve the assembly structural strength and stability of the water-cooling unit 3. The limiting beam 123 can be a movable structure, that is, the limiting beam 123 and the upper peripheral side frame 122 are detachably connected. The water-cooling unit 3 is first placed inside the top frame 12, and then the limiting beam 123 is installed on both sides of the water-cooling unit 3 to reinforce the water-cooling unit 3.

[0079] In some possible embodiments, such as Figure 4As shown, a hoisting matching groove 1223 is provided on the upper peripheral side frame 122, and the hoisting matching groove 1223 is located on the side of the limiting beam 123 away from the water-cooling unit 3. The limiting beam 123 is also used to guide the sling so that the sling can be smoothly inserted into the hoisting matching groove 1223. The top frame 12 can cooperate with the hoisting equipment, and the battery box 100 can be transferred with the help of the hoisting equipment. The hoisting equipment has a sling, and the sling is used to be combined with the upper peripheral side frame 122. The sling can have a hook, and the hook is provided with an inclined portion. In the process of the hook gradually approaching the top frame 12 from top to bottom, the limiting beam 123 will contact the inclined portion, fine-tuning the position of the sling so that the hook on the sling can be smoothly inserted into the hoisting matching groove 1223. For example, the hook has a first inclined surface and a second inclined surface. When the sling gradually falls, the first inclined surface contacts the limiting beam 123, and the second inclined surface contacts the upper peripheral side frame 122. Under the cooperative guiding action of the limiting beam 123 and the upper peripheral side frame 122, the hook can finally be smoothly inserted into the lifting cooperation groove 1223, thereby realizing the combination of the sling and the top frame 12.

[0080] Example 3

[0081] See also Figures 1 to 20 As shown, the embodiment of the present application provides a new type of battery box 100, including: a bottom frame 11, a top frame 12, a middle frame 13, a battery pack 2 and a cable 5. A high-voltage box 4 is provided on the bottom frame 11, the top frame 12 is located on the top of the bottom frame 11, and there is a gap between the top frame 12 and the bottom frame 11. A water-cooling unit 3 is provided on the top frame 12, the middle frame 13 is located between the bottom frame 11 and the top frame 12, the middle frame 13 includes a longitudinal beam 131, and the longitudinal beam 131 connects the top frame 12 and the bottom frame 11 respectively. The battery pack 2 is provided between the bottom frame 11 and the top frame 12, the cable 5 is connected to the longitudinal beam 131, and extends along the longitudinal beam 131, one end of the cable 5 is connected to the high-voltage box 4, and the other end of the cable 5 is connected to the water-cooling unit 3.

[0082] In the embodiment of the present application, the water cooling unit 3 is arranged on the top frame 12, which does not occupy the space of the bottom frame 11, which is conducive to reducing the size of the bottom frame 11. In the embodiment of the present application, the longitudinal beam 131 is provided to connect the bottom frame 11 and the top frame 12, thereby increasing the structural strength of the frame 1 of the battery box 100, and providing a fixing position for the cable 5, so that the cable 5 can extend along the longitudinal beam 131 to the top frame 12, facilitating the connection between the high-voltage box 4 and the water cooling unit 3, and making the cable 5 arranged neatly and orderly, less prone to malfunction, and avoiding the problem of the cable 5 being easily bent and damaged due to a messy arrangement.

[0083] In some possible embodiments, combined Figure 7 and Figure 8As shown, the middle frame 13 includes two longitudinal beams 131, and the cable 5 includes a power supply line 51 and a communication line 52. The power supply line 51 extends along one longitudinal beam 131 and is electrically connected to the water-cooling unit 3. The communication line 52 extends along the other longitudinal beam 131 and is at least partially electrically connected to the water-cooling unit 3. The power supply line 51 is used for the high-voltage box 4 to supply power to the water-cooling unit 3, and the communication line 52 is used for information exchange between the high-voltage box 4 and the water-cooling unit 3. The power supply line 51 is a high-voltage line, while the communication line 52 is a low-voltage signal line. In the embodiment of the present application, the power supply line 51 and the communication line 52 are set separately on both sides, so that the line layout is clearer and the production, installation and maintenance work are facilitated. At the same time, by setting the power supply line 51 and the communication line 52 separately on both sides, mutual interference between the two is avoided, and the electromagnetic radiation of the high-voltage power supply line 51 is avoided from interfering with the low-voltage communication line 52.

[0084] In some possible embodiments, such as Figure 10 As shown, the novel battery box 100 includes at least two battery packs 2, each extending along the length of the bottom frame 11. A longitudinal beam 131 is positioned between two adjacent battery packs 2, with two longitudinal beams 131 located on either side of the bottom frame 11 along the width. The longitudinal beams 131 do not interfere with the arrangement of the individual battery packs 2. Furthermore, the longitudinal beams 131 are positioned in the gap between adjacent battery packs 2, concealing and protecting the cables 5 extending along the longitudinal beams 131.

[0085] In some possible embodiments, combined Figure 4 、 Figure 5 、 Figure 8 、 Figure 20 and Figure 21 As shown, the top frame 12 includes an upper base frame 121 and an upper peripheral side frame 122 located around the edge of the upper base frame 121. The upper base frame 121 is provided with a wiring opening 1211. The water cooling unit 3 is disposed on the upper base frame 121. The power supply line 51 and the communication line 52 both pass through the wiring opening 1211 and extend to the water cooling unit 3. By providing the wiring opening 1211 on the upper base frame 121, the cables 5 can be easily extended through the top frame 12 to connect to the water cooling unit 3 inside the top frame 12.

[0086] In some possible embodiments, such as Figure 21 As shown, a water baffle 1212 is provided on the upper surface of the upper base frame 121 along the edge of the wiring opening 1211. The water baffle 1212 is a closed ring, or the water baffle 1212 can be connected to the upper peripheral side frame 122 to form a closed ring structure, which can block water and prevent water on the upper base frame 121 from flowing directly into the battery box 100 through the wiring opening 1211, thereby improving safety.

[0087] In some possible embodiments, combined Figure 7 、 Figure 8 、 Figure 20 and Figure 21 As shown, the routing opening 1211 is located near the longitudinal beam 131 connecting the power supply line 51. The power supply line 51 has a high voltage, and the cable 5 is relatively thick and difficult to bend. By locating the routing opening 1211 close to the corresponding longitudinal beam 131, the power supply line 51 does not need to be bent, or only bends slightly, before passing through the routing opening 1211 and extending into the top frame 12. The communication line 52 is a low-voltage signal line with a small diameter. It can extend from the top of the corresponding longitudinal beam 131 to the side of the other longitudinal beam 131, and finally pass through the routing opening 1211 and extend into the top frame 12.

[0088] In some possible embodiments, combined Figure 6 、 Figure 7 、 Figure 8 and Figure 20 As shown, a wire threading port is provided on the casing of the water cooling unit 3, and the cable 5 extending from the wiring port 1211 into the top frame 12 at least partially passes through the wire threading port and extends into the casing of the water cooling unit.

[0089] The side shell of the casing of the water-cooling unit corresponding to the wiring opening 1211 includes a first shell wall 331 and a second shell wall 332. The first shell wall 331 is attached to the upper side frame 122 of the top frame 12. A wiring cavity 124 is formed between the second shell wall 332 and the upper side frame 122. A wiring opening is set on the second shell wall 332, and the wiring cavity 124 connects the wiring opening and the wiring opening 1211.

[0090] The first shell wall 331 protrudes from the second shell wall 332 and can fit together with the upper peripheral frame 122, while there is a gap between the second shell wall 332 and the inner wall of the upper peripheral frame 122, forming a wiring cavity 124. After the cable 5 passes through the wiring opening 1211 and extends into the wiring cavity 124, there is a certain bending space, so that the cable 5 can bend and turn smoothly and then further pass through the threading opening and extend into the interior of the water-cooling unit 3.

[0091] In some possible embodiments, the top shell of the housing has an extension wall 38 extending from the peripheral side wall, and the extension wall 38 covers the wiring opening 1211. The provision of the extension wall 38 can block the top of the wiring opening 1211, preventing rainwater from directly falling into the wiring opening 1211 and entering the interior of the battery box 100.

[0092] In some possible embodiments, such as Figure 6 As shown, the novel battery box 100 further includes a flexible sealing sheet 35, which is attached to the surface of the housing and covers the threading port. The flexible sealing sheet 35 is provided with a slit through which the cable 5 passes. The flexible sealing sheet 35 serves to block water and impurities and dust, preventing impurities from entering the interior of the water-cooling unit 3.

[0093] In some possible embodiments, such as Figure 4 As shown, the new battery box 100 includes a T-Box remote communication module 6, which is arranged on the top frame 12. An outlet connected to the wiring cavity 124 is formed between the casing and the upper peripheral side frame 122. Part of the communication line 52 extends out of the wiring cavity 124 from the outlet and extends to the T-Box remote communication module 6 to connect to the T-Box remote communication module 6.

[0094] Example 4

[0095] Combine Figure 1 as well as Figures 10 to 13 As shown, an embodiment of the present application provides a battery box 100, comprising: a frame 1, a reinforcement member 8, and at least two battery packs 2. A battery installation space is formed inside the frame 1, and each battery pack 2 is disposed in the battery installation space. The battery packs 2 are arranged in sequence along the horizontal direction, and the battery packs 2 are fixed to the frame 1. The reinforcement member 8 is located between two adjacent battery packs 2. The reinforcement member 8 has two side connecting portions, and the two side connecting portions extend to two adjacent battery packs 2 respectively. Each side connecting portion includes two extension pieces 81, and the two extension pieces 81 have an angle between them. Each extension piece 81 is respectively attached to a corresponding battery pack 2.

[0096] In the embodiment of the present application, the reinforcement 8 connects and fixes the two adjacent battery packs 2 in the horizontal direction to form a whole, strengthens and fixes the battery packs 2, avoids the formation of a concentrated force point at the lower edge of the gap between the two battery packs 2, protects the bottom structure of the frame 1, and extends the service life of the battery box 100.

[0097] The reinforcement 8 of the present application is X-shaped. Compared with the straight strip structure, the side connection parts on both sides of the reinforcement 8 of the present application are V-shaped structures, which have the effect of connecting and tightening in both the horizontal and height directions. It has been verified by simulation experiments that the X-shaped connection structure makes the connection structure of adjacent battery packs 2 more stable and reliable.

[0098] In some possible embodiments, the angle between the two extension pieces 81 of the side connection portion is acute. The angle between the two extension pieces 81 of the side connection portion is small. When the two extension pieces 81 are connected to the battery packs 2, the connection points are close, and they can cooperate with each other to share the load, significantly improving the strength and stability of the connection structure between the two adjacent battery packs 2.

[0099] In some possible embodiments, the reinforcement member 8 is sheet-shaped, and the extension trajectory of the peripheral edge of the reinforcement member 8 is a smoothly transitional arc. The peripheral edge of the entire reinforcement member 8 has no sharp or sharp corners, thereby avoiding the formation of stress concentration points and extending the service life of the reinforcement member 8.

[0100] In some possible embodiments, a fixing hole 811 is provided at one end of each extension piece 81 away from the center of the reinforcement 8, one end of the fastener 1113 passes through the fixing hole 811 and is connected to the battery pack 2, and the other end of the fastener 1113 is limited to the extension piece 81.

[0101] The end of the extension piece 81 is provided with a fixing hole 811, which facilitates connection to the outer shell of the battery pack 2 via a fastener 1113. For example, the fastener 1113 can be a bolt, and the outer shell of the battery pack 2 can be provided with a threaded hole. The stud of the bolt passes through the fixing hole 811 on the extension piece 81 and is threadedly connected to the threaded hole on the battery pack 2, with the cap of the bolt being retained on the surface of the extension piece 81.

[0102] In some possible implementations, at least two reinforcement members 8 are provided on both sides of the battery box 100 (both sides of the battery box 100 along the thickness direction), and the reinforcement members 8 are sequentially spaced along the height direction of the frame 1. As a result, both sides of adjacent battery packs 2 are connected by multiple reinforcement members 8, thereby enhancing the strength of the connection structure.

[0103] In some possible embodiments, the frame 1 includes a longitudinal beam 131 disposed between the two battery packs 2 , and the reinforcement 8 is connected to the longitudinal beam 131 .

[0104] The frame 1 may also include a top frame 12, a bottom frame 11, and a middle frame 13. The middle frame 13 includes a longitudinal beam 131 and two side frames 132. The middle frame 13 is located between the top frame 12 and the bottom frame 11. The side frames 132 of the middle frame 13 are located at both ends of the bottom frame 11 along the length direction, and the side frames 132 respectively connect the top frame 12 and the bottom frame 11. The longitudinal beam 131 of the middle frame 13 is located between the two side frames 132, and each battery pack 2 is located between the longitudinal beam 131 and the side frames 132. The middle portion of the reinforcement 8 is connected to the longitudinal beam 131, thereby ensuring that each battery pack 2 is fixed to the top frame 12 at the top, the bottom to the bottom frame 11 at the bottom, and the sides are fixed to the side frames 132 and the longitudinal beam 131 on both sides, effectively fixing each side of the battery pack 2.

[0105] In some possible embodiments, the battery box 100 includes a cover plate 91 connected to the frame 1, covering the battery pack 2, the reinforcement 8, and the longitudinal beam 131. The cover plate 91 protects the battery pack 2, the reinforcement 8, and the longitudinal beam 131, and also provides aesthetics.

[0106] In some possible implementations, the sealing plate 91 is connected to the reinforcement 8 by fasteners. There may be a gap between the sealing plate 91 and the battery pack 2. By fastening the sealing plate 91 to the reinforcement 8, the middle of the sealing plate 91 can be prevented from vibrating and hitting the shell of the battery pack 2.

[0107] In some possible embodiments, such as Figure 11 As shown, the side of the reinforcement member 8 facing away from the battery pack 2 is provided with a connecting portion 82 having a threaded groove. One end of the fastener passes through the sealing plate 91 and is threadedly connected to the threaded groove. The other end of the fastener 1113 is restrained on the sealing plate 91. The connecting portion 82 can be a nut portion protruding from the surface of the sealing plate 91, and the nut portion has a threaded groove. The fastener can be a bolt, the stud of the bolt passes through the sealing plate 91 and is threadedly connected to the threaded groove of the nut portion. The cap of the bolt is restrained on the sealing plate 91. By tightening the bolt, the sealing plate 91 is fitted to the reinforcement member 8.

[0108] In some possible implementation schemes, the reinforcement member 8 is an integrally formed part, and the reinforcement member 8 is a sheet that can be smoothly attached to the outer surface of the shell of the battery pack 2, does not occupy a large space, and does not affect the assembly of other structural parts of the battery box 100, such as the sealing plate 91 and other structures.

[0109] Example 5

[0110] See also Figures 1 to 14 As shown, the embodiment of the present application further illustrates the battery box 100, which includes a frame 1, a battery pack 2, and a sealing plate assembly 9. A battery installation space is formed inside the frame 1, the battery pack 2 is arranged in the battery installation space, and the battery pack 2 is connected to the frame 1. The sealing plate assembly 9 includes a plurality of sealing plates 91, each of which is connected to the frame 1 and / or the battery pack 2. Each sealing plate 91 cooperates to cover the battery pack 2. Among at least some adjacent sealing plates 91, one has a main board portion 911 and an overlapping edge 912 connected to the main board portion 911, and an overlapping groove is formed between the overlapping edge 912 and the main board portion 911. The edge of the other is embedded in the overlapping groove, and the overlapping edge 912 covers the gap between the main board portion 911 and the adjacent sealing plate 91.

[0111] The battery case 100 provided in this embodiment of the application has concave overlapping edges 912 provided on at least a portion of the sealing panels 91, forming overlapping grooves that serve as position limiters and facilitate the rapid assembly of adjacent sealing panels 91. The overlapping edges 912 block the gaps between adjacent sealing panels 91, protecting the internal battery pack 2 and preventing foreign matter from entering the inner side of the sealing panels 91. Furthermore, the overlapping edges 912 provide a comprehensive shielding effect on the battery pack 2. The overlapping sealing panels 91 seal the gaps, preventing the battery pack 2 shell from being exposed, and providing an aesthetically pleasing appearance.

[0112] In some possible embodiments, such as Figure 14 As shown, an avoidance hole 9121 is opened on the overlapping edge 912, and the fastener passes through the edge of one sealing plate 91 and the avoidance hole 9121 on the overlapping edge 912 of the other sealing plate 91 in sequence to connect to the battery pack 2, and the other end of the fastener 1113 is limited to the sealing plate 91 outside the overlapping edge 912.

[0113] In this embodiment, it is not necessary to secure the edges of each sealing plate 91 with separate fasteners. In this embodiment, the edges of two adjacent sealing plates 91 share fasteners, reducing the number of components and improving assembly efficiency, facilitating assembly and disassembly of the sealing plates 91 and maintenance of the battery pack 2. The fasteners can be bolts, the studs of which pass through the avoidance holes 9121 on the edge of one sealing plate 91 and the overlapping edge 912 of the other sealing plate 91, and are threadedly connected to the housing of the battery pack 2.

[0114] In some possible embodiments, such as Figure 14 As shown, a gasket 9122 is provided on the side of the overlapping edge 912 facing the battery pack 2. The gasket 9122 is attached to the outer surface of the battery pack 2. The provision of the gasket 9122 increases the thickness of the overlapping edge 912 locally, so that after the overlapping edge 912 is fixed to the battery pack 2, the boss on the overlapping edge 912 can fit closely to the shell of the battery pack 2. This prevents the formation of a large cavity between the sealing plate 91 and the battery pack 2, which could cause the sealing plate 91 to vibrate and hit the battery pack 2.

[0115] In some possible implementations, the avoidance hole 9121 passes through the gasket 9122. The fastener 1113 is provided through the gasket 9122, and the fastener 1113 can directly act on the gasket 9122, so that the gasket 9122 is tightly fitted to the surface of the outer shell of the battery pack 2.

[0116] In some possible implementations, the gasket 9122 and the overlapping edge 912 are integrally formed, which has a simple structure, high structural strength, and is not prone to tearing or breakage. The gasket 9122 can also be a separate part from the overlapping edge 912, and the gasket 9122 is later welded to the overlapping edge 912.

[0117] In some possible implementations, the main plate portion 911 and the overlapping edge 912 are formed by bending a single piece of the sealing plate 91. For example, the bent edge 125b is formed by stamping and bending the edge of the single piece of sealing plate 91. The sealing plate 91 with the overlapping edge 912 is simple to produce and does not require significantly more steps or costs than a straight sealing plate 91.

[0118] In some possible embodiments, the frame 1 includes a bottom frame 11, a top frame 12 and a middle frame 13. The bottom frame 11 and the top frame 12 are spaced apart, and the middle frame 13 is located between the bottom frame 11 and the top frame 12. The middle frame 13 is respectively connected to the top frame 12 and the bottom frame 11. A battery installation space is formed between the bottom frame 11 and the top frame 12. Part of the sealing plate 91 covers the top frame 12 and / or the bottom frame 11, and part of the sealing plate 91 covers the middle frame 13. Among them, among the sealing plates 91 covering the middle frame 13, at least part of the sealing plates 91 are provided with overlapping edges 912.

[0119] A battery pack 2 is arranged in the middle frame 13, so at least some of the sealing plates 91 covering the middle frame 13 are provided with overlapping edges 912, and the edges of another adjacent sealing plate 91 are embedded in the overlapping plates, which can effectively shield and protect the battery pack 2, and the adjacent sealing plates 91 share fasteners, reducing the number of fasteners used.

[0120] Specifically, among the sealing plates 91 covering the middle frame 13, in each sealing plate 91 located in the same plane, one of two adjacent sealing plates 91 is provided with an overlapping edge 912, thereby completely shielding and protecting the battery pack 2 inside the middle frame 13.

[0121] In some possible embodiments, combined Figure 13 and Figure 15 As shown, the side surfaces of the overall structure formed by each battery pack 2 have two large surfaces 21 and two narrow surfaces 22. The two large surfaces 21 are parallel to each other, and the two narrow surfaces 22 are parallel to each other. The narrow surfaces 22 are perpendicular to the large surfaces 21, and the two narrow surfaces 22 are located at both ends of the large surfaces 21. Three sealing plates 91 are connected to each large surface 21 of the central frame 13. The three sealing plates 91 are arranged in sequence to cover the large surfaces 21. Among the three sealing plates 91, one of the two adjacent ones is provided with an overlapping edge 912.

[0122] When the battery box 100 is installed on a heavy truck, the large surface 21 on one side of the battery box 100 faces the front of the truck, and the large surface 21 on the other side of the battery box 100 faces the rear of the truck. The two narrow surfaces 22 (also called width surfaces) of the battery box 100 face (perpendicular to) the width direction of the truck.

[0123] In some possible embodiments, combined Figure 10 and Figure 12 As shown, of the three sealing plates 91, the sealing plates 91 at the two ends, away from the middle sealing plate 91, are connected to the middle frame 13 via fasteners. For example, the middle frame 13 includes two side frames 132, which are located at both ends of the bottom frame 11 and respectively connected to the top frame 12 and the bottom frame 11. Of the three sealing plates 91, the sealing plates 91 at the two ends are connected to the side frames 132 via bolts, with the sealing plates 91 at the other ends being connected to the side frames 132 at one edge. The sealing plates 91 at the other ends and the middle sealing plate 91 are connected to the housing of the battery pack 2 via fasteners.

[0124] Example 6

[0125] See also Figures 1 to 16As shown, the embodiment of the present application further illustrates the battery box 100, which includes a frame 1 and several battery packs 2. The frame 1 includes a bottom frame 11, a top frame 12, and a middle frame 13. The bottom frame 11 and the top frame 12 are spaced apart, and the middle frame 13 is located between the bottom frame 11 and the top frame 12. The middle frame 13 includes two side frames 132, which are located on both sides of the bottom frame 11 along the length direction. The side frames 132 are respectively connected to the top frame 12 and the bottom frame 11. The side frames 132 are provided with multiple weight-reducing grooves 1323. A battery installation space is formed between the bottom frame 11, the top frame 12, and the two side frames 132. The top frame 12 is used to connect to the lifting equipment. Each battery pack 2 is arranged in the battery installation space.

[0126] The battery box 100 of the present application can be installed on a heavy truck, with one side of the battery box 100 perpendicular to the thickness facing the front of the truck, and the other side of the battery box 100 perpendicular to the thickness facing the rear. Side frames 132 on either side of the battery box 100 face (perpendicular to) the width of the truck. Side frames 132 protect the battery pack 2.

[0127] The lightweight battery box 100 provided in this embodiment of the present application is equipped with side frames 132, which protect the battery box 100 on both sides of the battery pack 2, preventing the battery pack 2 from being directly impacted by external forces and causing deformation and damage. The provision of side frames 132 also facilitates the installation of the sealing plate 91, which can cover the side frames 132 to shield and protect the surface of the battery pack 2. The side frames 132 are provided with weight-reducing grooves 1323, forming a hollow structure, which facilitates weight reduction, realizes the lightweight design of the battery box 100, and reduces the weight of the battery box 100.

[0128] In some possible embodiments, combined Figure 13 and Figure 15 As shown, the battery packs 2 are arranged in sequence along the length direction of the bottom frame 11. The peripheral side surfaces of the overall structure formed by the battery packs 2 have two large surfaces 21 and two narrow surfaces 22. The two large surfaces 21 are parallel to each other, and the two narrow surfaces 22 are parallel to each other. The narrow surfaces 22 are perpendicular to the large surfaces 21. The two narrow surfaces 22 are located at both ends of the large surface 21, and the two side frames 132 respectively cover the two narrow surfaces 22 of the overall structure.

[0129] When the battery box 100 is installed on a heavy truck, the large surface 21 on one side of the battery box 100 faces the front of the truck, while the large surface 21 on the other side of the battery box 100 faces the rear. The two narrow surfaces 22 (also known as width surfaces) of the battery box 100 face (are perpendicular to) the width of the truck and are exposed on both sides of the truck. The side frames 132 protect the narrow surfaces 22 on both sides of the battery pack 2.

[0130] In some possible embodiments, the side frame 132 has two columns (second columns 1321) and several beams 1322, each beam 1322 is located between two second columns 1321, and the two ends of the beam 1322 are respectively connected to the corresponding second columns 1321, and weight-reducing grooves 1323 are opened on the second columns 1321 and / or the beams 1322.

[0131] Weight-reducing grooves 1323 may be provided on both the crossbeam 1322 and the uprights, and the side frame 132 forms a hollow lightweight frame 1 , which is beneficial for reducing the weight of the battery box 100 .

[0132] In some possible embodiments, the battery case 100 includes a sealing plate 91, at least a portion of which covers the side frames 132, and the sealing plate 91 is connected to the side frames 132 via fasteners. The provision of the side frames 132 provides a mounting position for the side sealing plates 91, facilitating the installation of the side sealing plates 91, allowing the sealing plates 91 to cover the narrow sides 22 of each battery pack 2, shielding and protecting the battery packs 2.

[0133] In some possible embodiments, multiple rivet nuts are provided on the column and / or beam 1322, and a weight-reducing groove 1323 is provided on the column and / or beam 1322 between two adjacent rivet nuts. One end of the fastener 1113 passes through the sealing plate 91 and is connected to the rivet nut, and the other end of the fastener 1113 is limited to the sealing plate 91.

[0134] The fastener 1113 can be a bolt. By arranging rivet nuts on the crossbeam 1322 and the column, the stud of the bolt can pass through the cover plate 91 and be threadedly connected to the rivet nut, and the cap of the bolt is limited on the cover plate 91. The weight-reducing groove 1323 is opened between adjacent rivet nuts. The structural design is reasonable and significantly plays a role in weight reduction.

[0135] In some possible embodiments, combined Figure 22 As shown, the lightweight battery box 100 includes a water cooling unit 3, which is arranged on the top frame 12. The battery pack 2 has a water inlet 23 and a water return port 24. The water cooling unit 3 is connected to a water outlet pipe and a water return pipe. The water outlet pipe is connected to the water inlet 23, and the return pipe is connected to the return water port 24.

[0136] In the embodiment of the present application, the water cooling unit 3 is arranged on the top frame 12, which is more reasonable than the arrangement of the water cooling unit 3 on the bottom frame 11. The arrangement of the water cooling unit 3 on the top frame 12 helps to simplify the structure of the bottom frame 11, thereby reducing the height of the bottom frame 11 and reducing the height of the entire battery box 100.

[0137] In some possible embodiments, such as Figure 22As shown, the water inlet 23 and the water return port 24 are located at the top of the battery pack 2. Because the water cooling unit 3 is disposed on the top frame 12, in the embodiment of the present application, the water inlet 23 and the water return port 24 of the battery pack 2 are both disposed at the top of the battery pack 2, that is, on one side close to the top frame 12, to facilitate connection with the water outlet pipe and the water return pipe of the water cooling unit 3, thereby simplifying the assembly structure of the water cooling pipe.

[0138] In some possible implementations, the battery box 100 includes a high-voltage box 4, which is mounted on the bottom frame 11 and electrically connected to the battery pack 2. The high-voltage box 4 is electrically connected to the water-cooling unit 3 to provide power to the water-cooling unit 3 and to communicate with the water-cooling unit 3 to manage and control the water-cooling unit 3.

[0139] In some possible embodiments, the middle frame 13 includes a longitudinal beam 131, which is located between two adjacent battery packs 2, and the longitudinal beam 131 connects the bottom frame 11 and the top frame 12 respectively. The water cooling unit 3 is connected to the high-voltage box 4 through a cable 5, and the cable 5 extends along the longitudinal beam 131.

[0140] The longitudinal beam 131 not only connects and fixes the top frame 12 and the bottom frame 11, increasing the structural strength of the frame 1, but also facilitates the routing of the cables 5. The cables 5 can be located on the side of the longitudinal beam 131 facing the gap between the two battery packs 2, and the cables 5 are hidden and protected.

[0141] Combine Figure 8 and Figure 9 As shown, a plurality of cable ties may be provided on the longitudinal beam 131, each of which is sequentially spaced along the length of the longitudinal beam 131, and each of which is connected to a fixed cable 5 so that the cable 5 remains close to the longitudinal beam 131. The cable ties may be cable ties, binding ropes, or other structural members.

[0142] Example 7

[0143] See also Figures 1 to 23As shown, the embodiment of the present application further describes the battery box 100 in detail, which includes: a frame 1, a battery pack 2, a water cooling unit 3 and a protective cover assembly 125. The frame 1 includes a bottom frame 11, a top frame 12 and a middle frame 13. The bottom frame 11 and the top frame 12 are spaced apart. The middle frame 13 is located between the bottom frame 11 and the top frame 12, and the middle frame 13 is respectively connected to the top frame 12 and the bottom frame 11. A battery installation space is formed between the bottom frame 11 and the top frame 12. The top frame 12 is used to connect to the lifting equipment. The battery pack 2 is arranged in the battery installation cavity. The water cooling unit 3 is arranged on the top frame 12. The water cooling unit 3 is connected to the circulating water cooling pipe 36. The circulating water cooling pipe 36 extends from the top frame 12 to the battery pack 2. The protective cover assembly 125 is arranged on the top frame 12, and the protective cover assembly 125 covers the circulating water cooling pipe 36.

[0144] The protective cover component 125 may be a metal structure, such as aluminum alloy or steel plate. The protective cover component 125 may also be made of a polymer material, such as a hard plastic structure.

[0145] In the embodiment of the present application, since the top frame 12 and the lifting equipment are detachably connected, there is a problem that the hoist may squeeze and damage the circulating water cooling pipe 36. A protective cover assembly 125 is provided on the top frame 12 to cover and protect the circulating water cooling pipe 36, thereby preventing the circulating water cooling pipe 36 from being squeezed and damaged by the lifting equipment, thereby extending the service life of the circulating water cooling pipe 36 and improving safety.

[0146] In some possible embodiments, the top frame 12 has an upper bottom frame 121 and an upper peripheral side frame 122 located around the edge of the upper bottom frame 121. The water cooling unit 3 is supported on the upper bottom frame 121. The circulating water cooling pipe 36 extends along the upper bottom frame 121. The protective cover assembly 125 is connected to the upper bottom frame 121 to cover the circulating water cooling pipe 36.

[0147] The upper base frame 121 and the upper peripheral side frame 122 enclose an upper cavity with an open top. The water-cooling unit 3 is accommodated in the upper cavity, and the water-cooling unit 3 is directly supported on the upper base frame 121. The upper edge of the water-cooling unit 3 does not protrude from the upper edge of the peripheral side frame and is protected by the upper peripheral side frame 122.

[0148] In some possible embodiments, combined Figure 4 and Figure 23As shown, an escape opening 1216 is provided on the upper base frame 121, and the circulating water cooling pipe 36 includes a straight extension section 361 and a curved extension section 362. The straight extension section 361 is connected to the water cooling unit 3, and one end of the curved extension section 362 is connected to the straight extension section 361, and the other end passes through the escape opening 1216 and is connected to the battery pack 2. The protective cover assembly 125 includes a first protective cover 1251 and a second protective cover 1252. The first protective cover 1251 is connected to the upper base frame 121, and the first protective cover 1251 covers the straight extension section 361. The second protective cover 1252 is connected to the upper base frame 121, and the second protective cover 1252 covers the escape opening 1216 and the curved extension section 362.

[0149] A straight extension section 361 is provided on the side of the circulating water cooling pipe 36 near the water cooling unit 3 to prevent bending of the circulating water cooling pipe 36 and the water cooling unit 3 at the connection 82, facilitating a smooth water passage and a secure connection between the circulating water cooling pipe 36 and the water cooling unit. A curved extension section 362 is provided on the side near the escape opening 1216 to facilitate smooth passage through the escape opening 1216 and extend to the bottom side of the battery pack 2 for connection.

[0150] In some possible embodiments, such as Figure 4 As shown, a hoisting fitting groove 1223 is provided on the upper peripheral side frame 122, and the hoisting equipment's hoisting fitting groove 1223 can be hung on the hoisting fitting groove 1223 to achieve effective combination with the battery box 100. Part of the pipe section of the circulating water cooling pipe 36 is located on the lower side of the hoisting fitting groove 1223 and is easily squeezed by the hoisting fitting groove. In the embodiment of the present application, the first protective cover 1251 is arranged close to the hoisting fitting groove 1223 and extends along the extension direction of the hoisting fitting groove 1223. The first protective cover 1251 extends along the lower edge of the upper peripheral side frame 122, effectively protecting the part of the pipe section of the circulating water cooling pipe 36 at the lower edge of the hoisting fitting groove 1223. The extension length of the first protective cover 1251 is not shorter than the length of the hoisting fitting groove 1223.

[0151] In some possible embodiments, a first channel is formed between the first protective cover 1251 and the upper base frame 121, and a second channel is formed between the second protective cover 1252 and the upper base frame 121. One end of the first protective cover 1251 extends to the water cooling unit 3, and the other end of the first protective cover 1251 extends to the second protective cover 1252. The first protective cover 1251 and the second protective cover 1252 are connected, the first channel and the second channel are connected, and the circulating water cooling pipe 36 extends through the first channel and the second channel in sequence.

[0152] The first protective cover 1251 and the second protective cover 1252 are connected, and the channels of the two are interconnected without any disconnected areas. Therefore, the circulating water cooling pipe 36 can be fully protected. It should be noted that in the present application, the first protective cover 1251 and the second protective cover 1252 can also be a single piece, or the first protective cover 1251 and the second protective cover 1252 can also be separate pieces. When the first protective cover 1251 and the second protective cover 1252 are separate pieces, the volume of the workpiece can be reduced, making transportation and processing easier. For example, when making cloth, a small-sized workpiece is more conducive to saving materials.

[0153] In some possible embodiments, combined Figure 4 and Figure 5 As shown, the first protective cover 1251 and the second protective cover 1252 both include a top plate 125a and a bent edge 125b arranged on the edge of the top plate 125a, the bent edge 125b is fixedly connected to the upper base frame 121, and there is a gap between the top plate 125a and the upper base frame 121 to form the above-mentioned channel. One end of the top plate 125a of the first protective cover 1251 is fitted and fixed on the top plate 125a of the second protective cover 1252, thereby connecting the first protective cover 1251 and the second protective cover 1252 to form an integrated structure, so that the first channel and the second channel are directly connected, and there is no disconnected area between the two.

[0154] The side of the bending plate 443 facing away from the top plate 125 a can be bent to form a fitting edge, and the fitting edge is fitted on the upper base frame 121 , and the fastener passes through the fitting edge and is connected to the upper base frame 121 .

[0155] In some possible implementations, a reinforcing component is provided on the upper base frame 121 , and the reinforcing component is connected to the upper peripheral side frame or the upper base frame, and at least part of the bent edge is connected to the reinforcing component or the upper peripheral side frame.

[0156] The reinforcement components can elevate the protective cover assembly 125, increasing the size of the internal passageway to facilitate the accommodation of the circulating water cooling pipe 36 or other structures. The reinforcement components 1217 can also enhance the structural strength of the protective cover assembly 125 by lifting it, preventing it from easily falling off. The partially bent edge 125b of the protective cover assembly 125 can be directly fixed to the beam body of the upper peripheral frame 122.

[0157] In some possible embodiments, the battery box 100 includes two battery packs 2, and two avoidance openings 1216 are set on the upper bottom frame 121. The two avoidance openings 1216 are respectively arranged on both sides of the water cooling unit 3. The water cooling unit 3 is located in the middle position of the top frame 12. The water cooling unit 3 is connected to two circulating water cooling pipes 36. The two circulating water cooling pipes 36 extend to the two avoidance openings 1216 respectively. The battery box 100 has two protective cover assemblies 125, and the two protective cover assemblies 125 respectively cover the corresponding circulating water cooling pipes 36.

[0158] It should be noted that the circulating water cooling pipe 36 typically consists of two pipes: an inlet pipe and a return pipe, each of which is connected to a corresponding port on the battery pack 2. In this embodiment, a circulating water cooling pipe 36 is provided on each side of the water cooling unit 3 to facilitate connection to the two battery packs 2. Corresponding protective cover assemblies 125 can be provided for each of the two circulating water cooling pipes 36.

[0159] like Figure 3 and Figure 4 As shown, the two protective cover assemblies 125 have roughly the same structure. This allows the first protective covers 1251 of the two protective cover assemblies 125 to be designed to be identical in size and shape, allowing the two to share materials. The second protective covers 1252 of the two protective cover assemblies can be designed with corresponding shapes and sizes based on actual needs.

[0160] In some possible embodiments, the battery box 100 includes a water bottle 10, which is mounted on a second protective cover 1252 of a protective cover assembly 125 and connected to a circulating water cooling pipe 36. Placing the water bottle 10 on the second protective cover 1252 allows full utilization of the top space of the frame 1. The water bottle 10 can be used to replenish liquid in the water cooling unit 3.

[0161] In some possible embodiments, the battery box 100 includes a T-Box telecommunication module 6, which is mounted on a second protective cover 1252 of another protective cover assembly 125. By placing the T-Box telecommunication module 6 on the protective cover assembly 125, a compact design is achieved, fully utilizing the space at the top of the frame 1.

[0162] Example 8

[0163] See also Figures 1 to 19 As shown, the embodiment of the present application provides a drainable battery box 100, comprising: a bottom frame 11, a top frame 12, a water cooling unit 3, a middle frame 13 and a battery pack 2. The top frame 12 is located on top of the bottom frame 11. The top frame 12 includes an upper bottom frame 121 and an upper peripheral frame 122 located around the edge of the upper bottom frame 121. A first drainage channel 12253 is provided in the upper peripheral frame 122. The water cooling unit 3 is provided on the upper bottom frame 121. The accumulated water on the upper bottom frame 121 can be drained through the first drainage channel 12253. The middle frame 13 is located between the bottom frame 11 and the top frame 12. The middle frame 13 connects the top frame 12 and the bottom frame 11 respectively. A battery installation space is formed between the top frame 12 and the bottom frame 11. The battery pack 2 is provided in the battery installation space.

[0164] In the related art, such as the battery box replaceable vehicle energy system provided in the utility model patent application number 202121989052.8, the water cooling unit 3 is arranged at the bottom of the battery box 100, which occupies a large space at the bottom of the battery box 100, making the height of the battery box 100 high and limiting some applications of the battery box 100. In the embodiment of the present application, the water cooling unit 3 is arranged on the top frame 12, which does not occupy the space of the bottom frame 11, fully utilizes the space of the top frame 12, and is conducive to reducing the height of the frame 1 of the entire battery box 100.

[0165] like Figures 17 to 19 As shown, liquid entering the top frame, such as rainwater or condensed water flowing out of the water-cooling unit 3, enters the upper bottom frame 121, and will further flow into the first drainage channel 12253 in the upper peripheral side frame 122, and then be discharged from the top frame 12. The liquid will not flow into the battery pack 2 in the battery box 100, nor will it cause water accumulation on the top frame, thereby improving safety.

[0166] In some possible implementation schemes, the bottom wall of the casing of the water-cooling unit 3 is attached to the upper bottom frame 121, a drain port 37 is provided on the peripheral shell of the casing, and a water inlet 122511 connected to the first drainage channel 12253 is provided on the inner side wall of the upper peripheral frame 122. The liquid discharged from the drain port 37 can flow into the water inlet 122511 along the upper bottom frame 121.

[0167] By providing a drain port 37 on the housing's peripheral shell, condensed water within the housing is drained directly through the drain port 37, entering the upper base frame 121 and then flowing through the water inlet 122511 into the first drainage channel 12253 within the upper peripheral frame 122. The peripheral shell of the housing can be understood as the shell wall extending along the height of the housing. The water inlet 122511 can be set at the lower edge of the peripheral shell, and the lower edge of the water inlet 122511 can be flush with the bottom wall of the housing to ensure that all liquid in the housing can be drained smoothly.

[0168] In some possible embodiments, combined Figures 17 to 19 As shown, the upper peripheral side frame 122 includes two main boards 12251 spaced apart and a plurality of transverse boards 12252 located between the two main boards 12251 and respectively connected to the two main boards 12251. The transverse boards 12252 are spaced apart in sequence along the height direction of the top frame 12. A first drainage channel 12253 is formed between the two bottom transverse boards 12252. A water inlet 122511 is provided on the main board 12251 on the inner side of the upper peripheral side panel.

[0169] The upper surface of the upper base frame 121 can be flush with the lower edge of the water inlet 122511, ensuring that any liquid entering the upper base frame 121 can be discharged smoothly through the water inlet 122511 into the first drainage channel 12253. The upper peripheral side frame 122 is a hollow structure, which has the effect of reducing weight. Through the arrangement of two main plates 12251 and multiple cross plates 12252, the upper peripheral side frame 122 achieves both weight reduction and forms the first drainage channel 12253 for water discharge.

[0170] In some possible embodiments, the casing is located in the middle position of the top frame 12 along the length direction, and multiple drainage outlets 37 are provided on the two side shells of the casing perpendicular to the length direction of the top frame 12, and multiple water inlets 122511 are provided at intervals along the extension direction on the lower edge of the upper side frame 122.

[0171] The two side shells of the casing, perpendicular to the length of the top frame 12, have gaps with the inner wall of the upper side frame 122, allowing for drainage ports 37 to be provided. Liquid within the casing is drained smoothly through these ports. Numerous drainage ports 37 are provided on the casing, and numerous water inlets 122511 are provided on the upper side frame 122, ensuring that liquid can be promptly drained from the water-cooling unit 3. Liquid entering the upper bottom frame 121 is promptly drained through the water inlets 122511 into the first drainage channel 12253.

[0172] In some possible embodiments, such as Figure 4 As shown, the upper base frame 121 has a frame body and multiple bottom plates 1215. The frame body is connected to the middle frame 13, and each bottom plate 1215 is connected to the frame body. The frame body has multiple beams 1214 that are crisscrossed, and the upper surface of each beam 1214 and the upper surface of the bottom plate 1215 are located in the same plane. There is no height difference between the frame body and the bottom plate 1215, so a large amount of effusion will not be retained. In addition, part of the frame edge of the upper peripheral side frame 122 of the top frame 12 is configured as a hollow structure to facilitate direct drainage. That is, the effusion entering the upper base frame 121 partially flows into the first drainage channel 12253, and the remaining part is directly discharged from the hollow portion on the upper peripheral side frame 122.

[0173] In some possible embodiments, combined Figures 17 to 19As shown, the upper peripheral side frame 122 includes a plurality of first columns 1224 and a profile plate 1225. Each profile plate 1225 is located between each first column 1224, and each first column 1224 is connected to the corresponding profile plate 1225. The profile plate 1225 has a first drainage channel 12253 and a water inlet 122511. The first column 1224 has a first column cavity and a side hole connected to the first column cavity. The first drainage channel 12253 of the profile plate 1225 is connected to the side hole. In the implementation of this application, the upper peripheral side frame 122 may include four first columns 1224, which are arranged at the four corners of the rectangle. A profile plate 1225 is disposed between two adjacent first columns 1224. The profile plate 1225 may be an aluminum profile plate 1225. In this application, the hollow cavity of the aluminum profile is used as the first drainage channel 12253. First column 1224 is provided with a side hole on its side. After first column 1224 and profile plate 1225 are connected, the end of first drainage channel 12253 in profile plate 1225 is connected to the side hole. Liquid entering first drainage channel 12253 flows through the side hole into the first column cavity and drains downward, preventing water from accumulating on the top frame.

[0174] In some possible embodiments, the middle frame 13 has side frames 132, which are located on both sides of the bottom frame 11, and the side frames 132 are respectively connected to the top frame 12 and the bottom frame 11, and the side frames 132 have a second drainage channel, and the first column cavity is connected to the second drainage channel.

[0175] The side frame 132 is located on the outside of the battery pack 2 and at the edge of the frame 1 of the battery box 100. By providing a second drainage channel on the side frame 132, it is beneficial to drain the liquid to the outer contour edge of the battery box 100 and away from the battery pack 2 inside the battery box 100.

[0176] In some possible embodiments, the side frame 132 includes multiple second columns 1321. Each second column 1321 has a second drainage channel and a weight-reducing groove 1323 connecting to the second drainage channel. Liquid entering the second drainage channel can be drained through the weight-reducing groove 1323. Each second column 1321 on the side frame 132 is aligned with each first column 1224, and the opposing first columns 1224 and second columns 1321 are located on the same vertical line. The cavity extending along the height of the second column 1321 serves as the second drainage channel. Liquid drained from the first column cavity further flows into the second drainage channel of the second column 1321 and is drained through the weight-reducing groove 1323 in the second drainage channel.

[0177] Providing the weight-reducing grooves 1323 on the second uprights 1321 of the side frame 132 achieves a dual benefit: it reduces weight while also facilitating the drainage of liquid from the second uprights 1321. It is important to note that the weight-reducing grooves 1323 are provided on the side of the first upright 1224 facing away from the battery pack 2. This allows drainage to flow from the side of the second upright 1321 facing away from the battery pack 2, preventing excessive contact of the drained water with the battery pack 2.

[0178] It should be noted that the weight-reducing groove may not be provided on the second column, and a second drainage channel may be formed between the second column and the outer wall of the battery pack. The second drainage channel may extend directly to the bottom of the battery box, thereby facilitating direct drainage of water to the bottom of the battery box.

[0179] In some possible implementations, the water-cooling unit 3 has an air outlet 31 located at the top of the housing. On rainy days, rainwater can easily enter the housing of the water-cooling unit 3 through the air outlet 31. Rainwater that enters the housing is drained through the drain 37, preventing water from accumulating inside the housing. Other electrical components within the housing are also waterproof, preventing malfunctions caused by water ingress.

[0180] Embodiment 9

[0181] See also Figures 1 to 20 As shown, an embodiment of the present application provides a battery box 100 that is convenient for wiring, including: a bottom frame 11, a top frame 12, and a middle frame 13. A high-voltage box 4 is provided on the bottom frame 11, the top frame 12 is located on the top of the bottom frame 11, and there is a gap between the top frame 12 and the bottom frame 11, an electrical device is provided on the top frame 12, and the middle frame 13 is located between the bottom frame 11 and the top frame 12. The middle frame 13 includes a longitudinal beam 131, and the longitudinal beam 131 connects the bottom frame 11 and the bottom frame 11 respectively. The battery pack 2 is provided between the bottom frame 11 and the top frame 12, and the cable 5 is connected to the longitudinal beam 131. The cable 5 extends along the longitudinal beam 131. One end of the cable 5 is connected to the high-voltage box 4, and the other end of the cable 5 is connected to the electrical device.

[0182] The embodiment of the present application can connect the bottom frame 11 and the top frame 12 by setting a longitudinal beam 131, thereby increasing the structural strength of the frame 1 of the battery box 100, and provide a fixing position for the cable 5, so that the cable 5 can extend along the longitudinal beam 131 to the top frame 12, thereby facilitating the connection between the high-voltage box 4 and various electrical devices on the top frame 12, and also making the cable 5 arranged neatly and orderly, avoiding the problem of the cable 5 being arranged in a messy manner and sagging, which is easy to bend and break.

[0183] In some possible embodiments, the middle frame 13 includes two side frames 132, which are respectively arranged at both ends of the bottom frame 11 along the length direction, and the side frames 132 are respectively connected to the top frame 12 and the bottom frame 11, the longitudinal beam is located between the two side frames 132, and the battery pack 2 is arranged between the side frames 132 and the longitudinal beam.

[0184] The battery box 100 of the present application can be installed on a heavy truck, with one side of the battery box 100 perpendicular to the thickness facing the front of the truck, and the other side of the battery box 100 perpendicular to the thickness facing the rear. Side frames 132 on either side of the battery box 100 face (perpendicular to) the width of the truck. Side frames 132 protect the battery pack 2.

[0185] The lightweight battery box 100 provided in this embodiment of the present application is equipped with side frames 132, which protect the battery box 100 on both sides of the battery pack 2, preventing the battery pack 2 from being directly impacted by external forces and causing deformation and damage. The provision of side frames 132 also facilitates the installation of the sealing plate 91, which can cover the side frames 132 to shield and protect the surface of the battery pack 2. The side frames 132 can be provided with weight-reducing grooves, forming a hollow structure, which facilitates weight reduction, achieving a lightweight design for the battery box 100 and reducing the weight of the battery box 100.

[0186] In some possible implementations, multiple cable ties are provided on the longitudinal beam, each of which is spaced apart along the length of the longitudinal beam 131 and connected to a cable 5. Each cable ties secures a different position of the cable 5, keeping the cable 5 in close contact with the longitudinal beam 131. The cable ties can be cable ties, ropes, or other structures.

[0187] In some possible embodiments, combined Figures 1 to 21 As shown, the top frame 12 includes an upper base frame 121 and an upper peripheral frame 122 located around the edge of the upper base frame 121. The electrical devices are mounted on the upper base frame 121. The upper base frame 121 is provided with a wiring opening 1211, through which the cables extend to the electrical devices. The wiring opening 1211 provided on the upper base frame 121 facilitates the passage of the cables 5 through the top frame 12 to connect to the electrical devices within the top frame 12.

[0188] In some possible implementations, a water retaining plate 1212 is provided on the upper surface of the upper base frame 121 along the edge of the wiring opening 1211. The water retaining plate 1212 can be connected to the upper peripheral side frame 122 to form a closed annular structure, which can block water from the upper base frame 121 and prevent water from flowing directly from the wiring opening 1211 into the battery box 100, thereby improving safety.

[0189] In some possible implementation schemes, the electrical device includes a water cooling unit 3 , which is disposed on the top frame 12 , and the cable 5 is connected to the water cooling unit 3 .

[0190] The upper base frame 121 and the upper peripheral side frame 122 enclose an upper cavity with an open top. The water-cooling unit 3 is accommodated in the upper cavity, and the water-cooling unit 3 is directly supported on the upper base frame 121. The upper edge of the water-cooling unit 3 does not protrude from the upper edge of the peripheral side frame and is protected by the upper peripheral side frame 122.

[0191] In some possible implementations, the electrical device may further include a T-Box remote communication module 6 , which is disposed on the top frame 12 , and the cable 5 is connected to the T-Box remote communication module 6 .

[0192] In some possible embodiments, combined Figure 8 and Figure 9 As shown, the top frame 12 and / or the bottom frame 11 are provided with a mounting block 7 protruding therefrom, and the end of the longitudinal beam 131 is connected to the mounting block 7 by a fastener 1113. The longitudinal beam 131 and the mounting block 7 are detachably connected, which facilitates later maintenance and disassembly.

[0193] The mounting block 7 may be provided with a threaded groove, one end of the fastener passes through the longitudinal beam 131 and is threadedly connected to the threaded groove, and the other end of the fastener is limited on the longitudinal beam 131. The fastener 1113 may be a bolt. Specifically, the longitudinal beam 131 has a hollow cavity, and a notch portion 1311 communicating with the hollow cavity is provided at the end (top or bottom) of the longitudinal beam 131. The fastener is a bolt having a stud and a cap body for connecting the stud. The stud passes through the notch portion 1311 and the shell wall of the longitudinal beam 131 in turn and is threadedly connected to the threaded groove on the mounting block 7. The cap body extends into the cavity from the notch portion 1311 and fits against the inner wall of the longitudinal beam 131, thereby realizing effective connection of the longitudinal beam 131 with the top frame 12 and the bottom frame 11, respectively.

[0194] Example 10

[0195] See also Figures 1 to 23As shown, an embodiment of the present application provides a battery box 100, comprising: a frame 1 and a battery pack 2. Frame 1 comprises a bottom frame 11, a top frame 12, and a middle frame 13. The bottom frame 11 and the top frame 12 are spaced apart, and the middle frame 13 is located between the bottom frame 11 and the top frame 12. The middle frame 13 connects the top frame 12 and the bottom frame 11, respectively. A battery installation space is formed between the top frame 12 and the bottom frame 11. The top frame 12 has a bottom plate 1215, which has an escape opening 1216 that connects to the battery installation space. A water retaining frame 1213 is provided on the bottom plate 1215 around the edge of the escape opening 1216. The battery pack 2 is disposed in the battery installation cavity. A maintenance switch 25 is provided on the battery pack 2, and the maintenance switch 25 is exposed in the escape opening 1216. The battery box 100 of the present application is provided with an escape opening 1216 on the top frame 12, so that the maintenance switch 25 of the battery pack 2 is exposed to the escape opening 1216, which facilitates manual disassembly and assembly of the maintenance switch 25 to control the power off of the battery box 100 so as to carry out relevant maintenance work.

[0196] The water retaining frame 1213 can be a closed ring. When liquid enters the bottom plate 1215 on the bottom frame 11, the water retaining frame 1213 can prevent the water from flowing into the battery box 100 through the escape 1216, thereby reducing safety hazards. For example, a water cooling unit 3 can be installed on the top frame 12. The condensed water in the water cooling unit 3 will flow into the bottom plate 1215. The design of the water retaining frame 1213 can effectively prevent water from flowing into the bottom plate 1215.

[0197] A protective cover assembly may also be provided on the top frame 12 to cover the top of the escape opening 1216 to prevent rainwater from directly entering the interior of the battery box 100 through the escape opening 1216 .

[0198] In some possible embodiments, the water retaining frame 1213 can be formed by bending the bottom plate 1215, that is, the water retaining frame 1213 and the bottom plate 1215 are integrally formed, which has high structural strength. The water retaining frame 1213 can be formed by shearing and bending on the bottom plate 1215. Among the multiple side panels formed after bending, adjacent side panels can be welded and fixed to form a closed water retaining frame 1213 in the shape of a square. Alternatively, the water retaining frame 1213 can also be a separate component from the bottom plate 1215, and then welded / bonded to the bottom plate 1215 at a later time.

[0199] In some possible embodiments, such as Figure 23 As shown, the battery box 100 includes a water-cooling unit 3, which is mounted on the top frame 12. A circulating water-cooling pipe 36 is connected to the water-cooling unit 3. The circulating water-cooling pipe 36 passes through the escape opening 1216 and connects to the battery pack 2. The water-cooling unit 3 is mounted on the top frame 12, and the circulating water-cooling pipe 36 can extend along the escape opening 1216 into the box body and connect to the battery pack 2, thereby simplifying the piping layout.

[0200] In some possible embodiments, such as Figure 23 As shown, a raised seat 1218 is provided on the bottom plate 1215, and the circulating water cooling pipe 36 is connected to the raised seat 1218, so that there is a distance between the circulating water cooling pipe 36 and the water retaining frame 1213. The provision of the raised seat 1218 increases the height of the circulating water cooling pipe 36, preventing the circulating water cooling pipe 36 from directly contacting the water retaining frame 1213 and being cut and damaged by the water retaining frame 1213.

[0201] In some possible embodiments, the circulating water cooling pipe 36 includes a water outlet pipe and a water return pipe, the battery pack 2 has a water inlet 23 and a water return port 24, both the water inlet 23 and the water return port 24 are exposed to the avoidance port 1216, the water outlet pipe passes through the avoidance port 1216 and is connected to the water inlet 23, and the water inlet pipe passes through the avoidance port 1216 and is connected to the water return port 24.

[0202] The water inlet 23 and the water return port 24 are both arranged at the top of the battery pack 2, which facilitates connection with the circulating water cooling pipe 36, simplifies the pipeline structure, and improves assembly efficiency.

[0203] In some possible implementations, the escape opening 1216 is elongated, with the water inlet 23, maintenance switch 25, and water return port 24 arranged sequentially along the length of the escape opening 1216. By configuring the escape opening 1216 as an elongated strip, the water inlet 23, maintenance switch 25, and water return port 24 are all exposed to the escape opening 1216, facilitating both the removal and installation of the maintenance switch 25 and the connection of the circulating water cooling pipe 36. The water inlet 23 and water return port 24 on the battery pack 2 are located on either side of the maintenance switch 25.

[0204] In some possible embodiments, the battery box 100 includes a protective cover assembly 125, which is disposed on the bottom plate 1215 and covers the escape opening 1216. This prevents rainwater from directly entering the interior of the battery box 100 through the escape opening 1216. The provision of the protective cover assembly 125 also serves to conceal and protect the maintenance switch 25, preventing the maintenance switch 25 from being accidentally pulled out. The protective cover assembly 125 can cover the circulating water cooling pipe 36 exposed on the top frame 12, preventing the circulating water cooling pipe 36 from being damaged by impact or collision with external structures.

[0205] In some possible embodiments, the battery box 100 with a lifting protection function includes at least two battery packs 2, at least two avoidance openings 1216 are set on the bottom plate 1215, and the maintenance switch 25 of each battery pack 2 is exposed to the corresponding avoidance opening 1216 respectively. The battery box 100 has at least two protective cover assemblies 125, and each protective cover assembly 125 covers the corresponding avoidance opening 1216 respectively.

[0206] In some possible implementations, the battery box 100 with a hoisting protection function includes a water bottle 10, which is mounted on the protective cover assembly 125 to fully utilize the space. The water bottle 10 is connected to the circulating water cooling pipe 36 for adding coolant to the water cooling unit 3.

[0207] Optionally, the battery box 100 with a hoisting protection function includes a T-Box remote communication module 6, which is installed on the protective cover assembly 125. The T-Box remote communication module 6 and the kettle 10 can be respectively arranged on different protective cover assemblies 125, thereby reasonably and fully utilizing the space of the top frame.

[0208] Example 11

[0209] See also Figures 1 to 31 As shown, the embodiment of the present application provides a precise positioning device 111 for a battery box. Figure 31 As shown, it includes: an aluminum block 1111 and a wear-resistant part 1112. Aluminum block 1111 has a slot 11111, and aluminum block 1111 is used for connection and fixation. Wear-resistant part 1112 has a connecting plate 11121 and a positioning sleeve 11122. Connecting plate 11121 is attached to the surface of aluminum block 1111 and is detachably connected to aluminum block 1111. Positioning sleeve 11122 is connected to connecting plate 11121 and inserted into slot 11111. Connecting plate 11121 is provided with an insertion port for connecting positioning sleeve 11122.

[0210] When the battery box 100 with the precise positioning device 111 is seated on the battery box base 200, the guide post on the battery box base 200 can be inserted into the positioning sleeve 11122 through the insertion port and fit against the inner wall of the positioning sleeve 11122. The guide post does not directly contact the slot 11111 of the aluminum block 1111, thereby avoiding wear on the aluminum block 1111.

[0211] The wear-resistant part 1112 can be made of steel or nylon sleeve, etc., and has strong wear resistance, can withstand frequent friction, is not easy to wear, thereby extending the service life. The wear-resistant part 1112 generally performs well and can maintain stable performance in various harsh environments.

[0212] The precise positioning device 111 of the present application comprises a two-part structure: an aluminum block 1111 is welded to the aluminum frame 1 or connected via fasteners, while a wear-resistant part is made of a wear-resistant material and can frictionally engage with the guide post on the battery box base 200 for a long time without being severely worn, thereby extending the service life of the precise positioning device 111. When replacing the precise positioning device 111 of the present application, only the wear-resistant part 1112 needs to be disassembled and replaced, which is relatively convenient.

[0213] In some possible implementations, the connecting plate 11121 is provided with a plurality of connecting holes 11121a, each of which is spaced apart along the circumference of the insertion opening. One end of each of the plurality of fasteners 1113 passes through a corresponding connecting hole 11121a and is connected to the aluminum block 1111, while the other end of the fastener 1113 is retained on the connecting plate 11121. When the wear-resistant part 1112 needs to be replaced, the wear-resistant part 1112 can be replaced smoothly by removing each fastener 1113.

[0214] In some possible implementations, the aluminum block 1111 is provided with a plurality of thread grooves, each of which is sequentially spaced along the circumference of the slot 11111. The fastener 1113 comprises a screw and a cap. The screw passes through the connection hole 11121a and is threadedly connected to the thread groove, and the cap is restrained by the connection plate 11121. The fastener 1113 is a bolt, which is relatively easy to assemble and disassemble.

[0215] In some possible implementation schemes, the slot 11111 passes through the aluminum block 1111, so that the top of the slot 11111 is connected to the atmosphere, avoiding blockage of the top of the slot 11111, so that during the process of inserting the guide column into the slot 11111, the air is compressed, which affects the fit between the guide column and the precision positioning device 111.

[0216] In some possible implementation schemes, the extension length of the positioning sleeve 11122 is smaller than the extension length of the slot 11111 , which is sufficient to fit in with the guide column, saving materials and facilitating the assembly and disassembly of the wear-resistant part 1112 and the aluminum block 1111 .

[0217] In some possible implementations, aluminum block 1111 is roughly a cube with multiple flat surfaces. One flat surface is provided with a notch for slot 11111, and connecting plate 11121 covers the flat surface with the notch. Connecting plate 11121 is preferably designed to match the area of the flat surface with the notch as much as possible, thereby fully covering the side of aluminum block 1111 facing battery box base 200. This also increases the contact area between wear-resistant member 1112 and battery box base 200, facilitating a stable fit between battery box 100 and battery box base 200.

[0218] The embodiment of the present application also provides a battery box 100 , comprising: a frame 1 and the above-mentioned precise positioning device 111 . The battery box 100 is arranged on the frame 1 , and the precise positioning device 111 is arranged on the frame 1 .

[0219] When the battery box 100 is gradually seated on the battery box base 200 from top to bottom, the guide post on the battery box base 200 can be inserted into the positioning sleeve 11122 through the insertion port and fit into the inner wall of the positioning sleeve 11122. The guide post on the battery box base 200 does not directly contact the slot 11111 of the aluminum block 1111, thereby avoiding wear on the aluminum block 1111.

[0220] In some possible implementations, the frame 1 is an aluminum frame 1, and the aluminum block 1111 of the fine positioning device 111 is welded to the aluminum frame 1. The aluminum frame 1 and the aluminum block 1111 are made of the same material and can be easily welded and fixed.

[0221] Aluminum block 1111 has a circumferential side surface extending around the circumference of slot 11111, and a top surface and a bottom surface located at either end of the circumferential side surface. Notches are provided on the bottom and top surfaces for communication with slot 11111. A connecting plate 11121 covers the bottom surface, which faces battery box base 200. The circumferential side surface of aluminum block 1111 is welded to aluminum frame 1.

[0222] In some possible embodiments, the peripheral side surface has multiple straight side surfaces arranged in sequence, and two adjacent side surfaces are perpendicular to each other. The frame 1 has a right-angle area, the aluminum block 1111 is located in the right-angle area, and the two adjacent side surfaces on the aluminum block 1111 are respectively welded to the two boundary surfaces of the right-angle area of the frame 1.

[0223] In some possible embodiments, such as Figure 25 As shown, the frame 1 is provided with an electrical connector 43 at the bottom, and the battery box 100 has multiple precision positioning devices 111, each located around the electrical connector 43. The battery box base 200 also has an electrical connector 43, and multiple guide posts are also provided around the electrical connector on the battery box base 200. The provision of the precision positioning devices 111 around the electrical connector 43 facilitates precise alignment and reliable connection of the electrical connector 43 on the battery box 100 with the electrical connector on the battery box base 200 when the battery box 100 is seated.

[0224] Example 12

[0225] See also Figures 1 to 27 As shown, an embodiment of the present application provides a high-voltage box 4, comprising: a high-voltage box body 41 and an adapter frame. The high-voltage box body 41 is provided with a connecting ear 411 on the edge, and the connecting ear 411 is provided with an ear hole 4111. The adapter frame is located around the high-voltage box body 41 and is detachably connected to the connecting ear 411. The adapter frame is provided with an adapter hole 4221. The extension direction of the adapter hole 4221 is perpendicular to the extension direction of the ear hole 4111, and is used for detachable connection with the frame 1.

[0226] The battery case 100 typically includes a battery pack 2, a high-voltage box 4, a top frame 12, and a bottom frame 11. The top frame 12 and bottom frame 11 are spaced apart, with the battery pack 2 positioned between them and the high-voltage box 4 mounted on top. In previous designs, the bottom frame 11 was taller and had a larger interior space. A mounting opening was provided on the sidewall of the bottom frame 11, allowing the high-voltage box 4 to be inserted into the bottom frame 11 through the mounting opening. The connecting ears 411 on the sides of the high-voltage box 4 overlapped with the corresponding structure inside the bottom frame 11, and the high-voltage box 4 was then secured with bolts. The bolts extend along the height of the battery case 100. However, in the new design, the height of the bottom frame 11 has been reduced, making it impossible to provide a mounting opening on the sidewall of the bottom frame 11. Therefore, the high-voltage box 4 is mounted from the bottom side of the battery case 100. This means that when assembling the high-voltage box 4, the battery case 100 must be hoisted and then assembled from the bottom up. However, in the prior art, the connecting ear 411 of the high-voltage box 4 is arranged horizontally, and the ear hole 4111 opened on the horizontal structure makes it only possible to fix it with bolts vertically (in the height direction of the battery box 100), and the extension dimension of the connecting ear 411 is short, which makes it impossible or difficult to assemble it quickly and effectively with the bottom frame 11 of the battery box 100. In order to solve this technical problem, the high-voltage box body 41 of the high-voltage box 4 provided in the embodiment of the present application is connected to an adapter frame through the connecting ear 411. The extension direction of the adapter hole 4221 on the adapter frame is perpendicular to the extension direction of the ear hole 4111, which changes the installation direction, that is, the bolt can extend in the horizontal direction to fix the high-voltage box 4, thereby facilitating the transfer assembly of the high-voltage box 4 on the battery box 100, simplifying the assembly structure, and significantly improving the assembly efficiency. It should be noted that in the present application, the extension direction of the hole can be understood as the thickness direction of the corresponding carrier, or the extension direction of the channel inside the hole.

[0227] In some possible implementation schemes, a connection hole is provided on the adapter frame, and the fastener 1113 is passed through the connection hole and the ear hole 4111 on the connecting ear 411 to connect and fix the high-voltage box body 41 and the adapter frame.

[0228] Specifically, the connection hole has an internal thread, and the fastener includes a stud and a cap. The bolt passes through the ear hole 4111 of the connection ear 411 and is threadedly connected to the connection hole, and the cap is restrained by the connection ear 411. The fastener 1113 can be a bolt. The bolt and the adapter frame increase the edge size of the high-voltage box 4, allowing the adapter frame to extend to the corresponding structure on the bottom frame 11 of the battery box 100, facilitating the connection and fixation between the adapter frame and the corresponding structure on the bottom frame 11.

[0229] In some possible embodiments, such as Figures 25 to 28As shown, the adapter frame includes two adapter beams 42, which are respectively arranged on both sides of the high-voltage box body 41. The adapter beams 42 are connected to corresponding connecting ears 411, and adapter holes 4221 are provided on the adapter beams 42. The two adapter beams 42 are respectively fixed to the bottom frame 11 with fasteners to stably and effectively assemble the high-voltage box body 41.

[0230] In some possible embodiments, the transfer beam 42 has a hollow cavity and an operating hole 4231, the transfer hole 4221 and the operating hole 4231 are both connected to the hollow cavity, the transfer hole 4221 is exposed to the operating hole 4231, and the fastener 1113 can pass through the operating hole 4231 and the transfer hole 4221 in sequence to be connected to the frame 1.

[0231] The setting of the operation hole 4231 plays the role of operation avoidance, which facilitates the avoidance of the fastener, so that the fastener can pass through the operation hole 4231 to smoothly connect the adapter beam 42 to the bottom frame 11 of the battery box 100.

[0232] In some possible embodiments, the transfer beam 42 includes a first slat 421, a second slat 422 and a third slat 423. The first slat 421 and the second slat 422 are vertically connected. The third slat 423 is respectively connected to the first slat 421 and the second slat 422. A sleeve 424 is provided on the first slat and the third slat. The sleeve 424 has a connecting hole. The fastener 1113 can pass through the ear hole 4111 of the connecting ear 411 and be threadedly connected to the connecting hole of the sleeve 424 to connect and fix the high-voltage box body 41 and the transfer beam 42. The second slat is provided with a transfer hole 4221, and the third slat is provided with an operating hole 4231.

[0233] like Figure 25 As shown, the cross-section of the adapter beam 42 is a right triangle. Two reinforcement beams 117 can be spaced apart inside the bottom frame 11. The high-voltage box 4 is located between the two reinforcement beams 117, and both sides of the high-voltage box body 41 are connected to the corresponding reinforcement beams 117 via adapter brackets. Specifically, fasteners pass through the adapter holes 4221 and are threaded onto the reinforcement beams 117.

[0234] In some possible embodiments, combined Figure 25 and Figure 26 As shown, the high-voltage box 4 includes a support member 44. The high-voltage box body 41 has a bottom surface, on which an electrical connector 43 is provided. The support member 44 is connected to the high-voltage box body 41, and protrudes from the electrical connector 43 in a direction perpendicular to the bottom surface.

[0235] When the high-voltage box 4 is supported on the support surface, the support member 44 directly contacts the support surface, and there is a gap between the electrical connector 43 and the support surface to prevent the electrical connector 43 from directly contacting the support surface, causing damage and deformation of the electrical connector 43 and resulting in economic losses.

[0236] In some possible embodiments, the support member 44 includes a support plate extending along the periphery of the electrical connector 43. The support plate can be directly connected to the bottom surface or the periphery of the high-voltage box body 41. The support plate is provided with a weight-reducing groove 441. The provision of the weight-reducing groove 441 has the effect of reducing the weight of the high-voltage box body 41, thereby preventing the high-voltage box body 41 from being excessively heavy.

[0237] In some possible embodiments, such as Figure 26 As shown, at least part of the support plate comprises a main plate 442 and a bent plate 443. The main plate 442 is connected to the high-voltage box body 41, and the bent plate 443 is attached to the main plate 442. The bent plate 443 is formed by bending the main plate 442. The provision of the bent plate 443 increases the thickness of the lower edge of the support plate, thereby improving the structural strength of the support plate. The provision of the bent plate 443 makes the lower edge of the support plate smooth, preventing the sharp edge of the support plate from easily cutting and damaging the external structure.

[0238] The present application also provides a battery box 100, comprising: a frame 1 and the above-mentioned high-voltage box 4, a battery pack 2 is arranged on the frame 1, the adapter frame of the high-voltage box 4 is detachably connected to the frame 1 through the adapter hole 4221, and the high-voltage box body 41 of the high-voltage box 4 is electrically connected to the battery pack 2.

[0239] The frame 1 may include a top frame 12 and a bottom frame 11, which are spaced apart from each other. The battery pack 2 is disposed between the top frame 12 and the bottom frame 11, and the high-voltage box 4 is mounted on the bottom frame 11. The specific assembly structure of the high-voltage box 4 and the frame 1 has been described in detail above and will not be repeated in this application.

[0240] Example 13

[0241] See also Figures 1 to 34 As shown, the embodiment of the present application provides a battery box 100 with a locking mating portion, comprising: a frame 1, a battery pack 2 and a lock tongue mating platform 112. Figure 32 and Figure 34 As shown, a battery installation space is formed inside the frame 1. A locking mating groove 1153 is formed on the frame 1. The battery pack 2 is disposed in the battery installation space. The lock tongue mating platform 112 is disposed in the locking mating groove 1153. The lock tongue mating platform 112 has a first platform 1121 and a second platform 1122. The first platform 1121 is connected to the inner wall of the locking mating groove 1153. The second platform 1122 covers the first platform 1121 and is detachably connected to the first platform 1121. When the lock tongue 210 of the locking mechanism is inserted into the locking mating groove 1153, the lock tongue 210 abuts against the second platform 1122 of the lock tongue mating platform 112.

[0242] In this embodiment of the present application, a locking tongue engagement platform 112 is provided within the locking engagement groove 1153 of the battery case 100, which can directly engage with the locking tongue 210 of the locking mechanism to prevent damage to the main structure of the frame 1. The locking tongue engagement platform 112 is made of a wear-resistant material, such as steel, for a long service life. The locking tongue engagement platform 112 includes a first platform 1121 and a second platform 1122. The second platform 1122 is detachable for easy replacement, eliminating the need to replace the first platform 1121, thus saving materials.

[0243] In some possible implementations, a threaded groove is provided on the first platform 1121, and connection holes are provided at both ends of the second platform 1122. Two first fasteners 1123 each have one end threaded through the corresponding connection hole and connected to the threaded groove on the first platform 1121, while the other end of the first fastener 1123 is retained on the second platform 1122. The first fasteners 1123 may be bolts, and tightening the bolts facilitates assembly and disassembly of the second platform 1122. The first fasteners 1123 are only connected to the first platform 1121 and are not used to connect to the frame 1, resulting in a simple structure and ease of assembly and disassembly.

[0244] like Figure 34 As shown, in some possible implementation schemes, a side of the second platform 1122 facing away from the first platform 1121 is provided with an inclined surface 11221, and an end of the inclined surface 11221 close to the inner side of the frame 1 (bottom frame) is lower than an end of the inclined surface 11221 close to the outer side of the frame 1.

[0245] like Figure 32 As shown, at least part of the upper surface of the second platform 1122 is an inclined platform, and the lock tongue 210 of the locking mechanism is a rotating and swinging lock tongue 210. When the lock tongue 210 swings, it is inserted into the locking matching groove 1153 from the inner side of the frame 1, and the lock tongue 210 directly stops at the inclined platform. The inclined platform and the rotating and swinging lock tongue 210 are more compatible, and the locking force of the lock tongue 210 is greater, which can effectively and reliably lock the battery box 100.

[0246] In some possible implementations, both ends of the first platform 1121 along the length direction are connected to the frame 1 via second fasteners 1124, and the second platform 1122 is located between the two second fasteners 1124. The second platform 1122 is directly fixed to the frame 1 via the fasteners, and the first platform 1121 cannot be easily disassembled, and the first platform 1121 can maintain a stable and reliable assembly relationship with the frame 1.

[0247] In some possible embodiments, such as Figure 3As shown, the frame 1 includes an outer frame plate, which has a locking matching groove 1153, and a cylinder 1125 is provided in the outer frame plate. The cylinder 1125 has a threaded groove, and one end of the second fastener 1124 passes through the first platform 1121 and is threadedly connected to the threaded groove of the cylinder 1125, and the other end of the second fastener 1124 is limited to the first platform 1121.

[0248] The outer frame plate can be a pure aluminum profile plate of a certain thickness. After the locking engagement groove 1153 is provided, it is sufficient to accommodate the lock tongue engagement platform 112. A receiving space is provided within the outer frame plate, and a cylindrical member 1125 is inserted and secured within the receiving space on the inner side of the outer frame plate. Cylindrical member 1125 is an internally threaded cylinder, and the second fastener 1124 is a bolt. The bolt's stud can be threadedly connected to the internally threaded cylinder, and the bolt's cap is restrained by the first platform 1121. The second platform 1122 is located between the two second fasteners 1124 and does not interfere with them.

[0249] In some possible implementations, the locking groove 1153 passes through the outer frame plate along the thickness direction of the outer frame plate.

[0250] Specifically, the outer frame plate includes a profile plate and a sealing plate 91, a cylinder 1125 is provided in the profile plate, the sealing plate 91 covers the profile plate, and the locking fitting groove 1153 includes a through-hole provided on the profile plate 1225 and an observation port 91a provided on the sealing plate 91, as shown in FIG. Figure 12 As shown, the observation port 91a communicates with the through port.

[0251] Combine Figure 12 、 Figure 32 and Figure 34 As shown, the observation port 91a can be used to conveniently observe whether the lock tongue 210 and the lock tongue matching platform 112 are normally matched. At the same time, when the lock tongue 210 cannot be retracted, the setting of the observation port 91a can conveniently use the external structure to apply external force to the lock tongue 210 to release the locking structure of the lock tongue 210.

[0252] In some possible embodiments, such as Figure 32 As shown, vertical ribs 1161 are provided in the inner cavity of the plate section of the profile plate 1225 located on the lower side of the locking fitting groove 1153, and the vertical ribs 1161 extend along the height direction of the battery box 100. Horizontal ribs 1162 are provided in the inner cavity of the plate section of the profile plate 1225 located on the lower side of the locking fitting groove 1153, and the horizontal ribs 1162 are vertically connected to the vertical ribs 1161. The provision of the vertical ribs 1161 can increase the vertical support structural strength of the profile plate 1225, and can withstand the downward pressure applied by the lock tongue 210. The provision of the horizontal ribs 1162 can connect the vertical ribs 1161, increase the structural strength of the vertical ribs 1161, and prevent the vertical ribs 1161 from being skewed due to force, resulting in a weakening of the vertical support effect.

[0253] In some possible embodiments, such as Figure 30 As shown, a backing plate 113 is provided at the lower edge of the frame 1 corresponding to the locking groove 1153. The force between the lower edge of the frame 1 corresponding to the locking groove 1153 and the support surface is the greatest. By adding the backing plate 113 there, the backing plate 113 directly contacts the support surface, protecting the pure aluminum structure of the frame 1 and preventing deformation of the frame 1 under external forces.

[0254] Example 14

[0255] See also Figures 1 to 34 As shown, an embodiment of the present application provides a frame 1 of a battery box 100, including: a bottom frame 11, a middle frame 13 and a top frame 12, the bottom frame 11 includes a plurality of outer frame plates, the outer frame plates are connected to each other, and the outer frame plates are enclosed to form a bottom cavity, the top frame 12 and the bottom frame 11 have a gap, the middle frame 13 is located between the bottom frame 11 and the top frame 12, and is respectively connected to the top frame 12 and the bottom frame 11, a battery installation space is formed between the top frame 12 and the bottom frame 11, the outer frame plate is a hollow plate, and the outer frame plate has a solid portion 1142 at one end close to the battery installation space, and the solid portion 1142 is provided with a threaded groove for connecting the battery pack 2 and / or the middle frame 13.

[0256] The outer frame plate in this application is hollow, which helps reduce weight. A solid structure is provided at the top of the outer frame plate, and threaded grooves are provided in the solid area to facilitate connection and fixation with the battery pack 2 and / or the middle frame 13. This ensures high strength and stability of the connection structure between the battery pack 2 and / or the middle frame 13 and the bottom frame 11 while reducing weight.

[0257] In some possible embodiments, such as Figure 32 and Figure 33 As shown, the outer frame plate has a first plate section 114 close to the battery installation space. The first plate section 114 has a hollow groove 1141 and a solid portion 1142 . The solid portion 1142 and the hollow groove 1141 are arranged in sequence along the thickness direction of the first plate section 114 .

[0258] The first plate section 114 is the top section of the outer frame plate. The first plate section 114 is not a completely solid structure, but a solid structure on one side along the thickness direction, which is convenient for opening a threaded groove. The other side of the first plate section 114 is a hollow groove 1141, which has the effect of reducing weight and will not affect the connection between the solid part 1142 and the battery pack 2 or the middle frame 13.

[0259] In some possible embodiments, the outer frame plate has a second plate segment 115, which is connected to the side of the first plate segment 114 facing away from the battery installation space. The second plate segment 115 includes two outer plates 1151 and multiple ribs 1152. The two outer plates 1151 are spaced apart and arranged in parallel. Each rib 1152 is arranged between the two outer plates 1151. The two sides of the ribs 1152 are connected to the two outer plates 1151 respectively, forming multiple cavities between the two outer plates 1151 and each rib 1152. The second plate segment 115 and the first plate segment 114 are integrally formed, and the entire outer frame plate can be an aluminum alloy profile plate 1225. The interior of the second plate segment 115 has a large number of hollow cavities, which significantly reduces weight.

[0260] In some possible implementation schemes, each rib 1152 is arranged at an angle, and each rib 1152 separates the space between the two outer plates 1151 to form a plurality of triangular prism-shaped cavities.

[0261] In this embodiment, second plate segment 115 is located mid-height along the outer frame of bottom frame 11 and is susceptible to impact from external structures. The numerous triangular cross-sections of second plate segment 115 provide exceptional stability, allowing it to withstand various forces and external forces while remaining secure. This significantly improves the overall stability of the structure and reduces the risk of deformation and damage.

[0262] In some possible embodiments, a locking groove 1153 is defined in the second plate segment 115 and extends along the thickness of the second plate segment 115. When the battery box 100 with the frame 1 is unloaded onto the battery box base 200, the locking tongue 210 of the locking mechanism on the battery box base 200 can be inserted into the locking groove 1153 to secure the frame 1.

[0263] In some possible embodiments, the outer frame plate has a third plate segment 116, which is located on the side of the second plate segment 115 facing away from the first plate segment 114. Vertical ribs 1161 are disposed in the cavity of the third plate segment 116. Horizontal ribs 1162 are disposed in the cavity of the third plate segment 116, and the horizontal ribs 1162 are perpendicularly connected to the vertical ribs 1161.

[0264] Vertical ribs 1161 extend along the height of frame 1. The provision of vertical ribs 1161 increases the vertical support structural strength of profile plate 1225, enabling it to withstand the downward pressure exerted by locking tongue 210. Horizontal ribs 1162 connect vertical ribs 1161, increasing their structural strength and preventing them from becoming distorted under load, which could weaken their vertical support.

[0265] In some possible embodiments, the frame 1 of the battery box 100 includes a locking tongue mating platform 112, a locking mating groove 1153 is provided on the lower edge of the second plate section 115, the locking tongue mating platform 112 is located in the locking mating groove 1153, and the locking tongue mating platform 112 is connected to the third plate section 116 by fasteners.

[0266] The locking tongue engaging platform 112 is provided in the locking engaging groove 1153 of the battery box 100 and can directly contact and engage with the locking tongue 210 of the locking mechanism to prevent damage to the main structure of the frame 1. The locking tongue engaging platform 112 is made of wear-resistant material, such as steel structure, and has a long service life.

[0267] In some possible embodiments, such as Figure 32 and Figure 33 As shown, the frame 1 of the battery box 100 includes a cylindrical member 1125, which is disposed within the third plate section 116. The cylindrical member 1125 has a threaded groove. One end of a fastener passes through the lock tongue mating platform 112 and is threadedly connected to the threaded groove of the cylindrical member 1125, while the other end of the fastener is restrained by the lock tongue mating platform 112. The fastener can be a bolt, the stud of the bolt passes through the lock tongue mating platform 112 and is threadedly connected to the cylindrical member 1125, and the cap of the bolt is restrained by the lock tongue mating platform 112.

[0268] This embodiment also provides a battery box 100, comprising the aforementioned frame 1 and a battery pack 2. The battery pack 2 is positioned within the battery mounting space. One end of a fastener passes through the battery pack 2 and is threadedly connected to a threaded groove in the outer frame, while the other end of the fastener is retained within the battery pack 2. The middle frame 13 can also be mounted in a similar manner. For example, one end of a fastener passes through the middle frame and is threadedly connected to a threaded groove in the outer frame, while the other end of the fastener is retained within a corresponding structure on the middle frame.

[0269] Example 15

[0270] See also Figures 1 to 30 As shown, the embodiment of the present application provides a bottom frame 11 of a battery box 100, comprising: a bottom peripheral side frame, a high-voltage box 4, and a plurality of reinforcing beams 117. The bottom peripheral side frames enclose a bottom cavity, the reinforcing beams 117 are located in the bottom cavity, and the two ends of the reinforcing beams 117 are respectively connected to the bottom peripheral side frames. A wire pass-through opening 1173 is provided on the reinforcing beams 117. The high-voltage box 4 is located in the bottom cavity, and the high-voltage cavity is located between two adjacent reinforcing beams 117. The high-voltage box 4 is connected to the two reinforcing beams 117. The high-voltage box 4 is connected to a cable 5, which passes through the wire pass-through opening 1173.

[0271] The present application sets a reinforcing beam 117 in the bottom cavity of the bottom frame 11, which serves to enhance the structural strength of the bottom peripheral frame, and also facilitates the installation of the high-voltage box 4. A wire opening 1173 is set on the reinforcing beam 117, which can facilitate the external wiring of the high-voltage box 4. The reinforcing beam 117 will not interfere with the electrical connection between the high-voltage box 4 and other external devices.

[0272] In some possible implementations, the reinforcing beams 117 on both sides of the high-voltage box 4 are provided with wire openings 1173. Cables 5 are connected to both sides of the high-voltage box 4, and the cables 5 on both sides of the high-voltage box 4 extend through the corresponding wire openings 1173. The cables 5 on both sides of the high-voltage box 4 can smoothly pass through the wire openings 1173 on the corresponding reinforcing beams 117, making cable routing more convenient and more orderly. In addition to strengthening the structural strength of the bottom frame 11, the two reinforcing beams 117 are also used to connect and secure the high-voltage box 4.

[0273] In some possible implementations, the reinforcement beam 117 includes an outer shell wall and a plurality of reinforcement ribs. The outer shell wall has a shell cavity. Each reinforcement rib is disposed in the shell cavity and each reinforcement rib is connected to an inner wall of the outer shell wall.

[0274] Multiple reinforcing ribs are provided within the reinforcement beam 117, creating numerous hollow cavities between adjacent ribs or between the ribs and the outer shell wall. This reduces weight and increases the structural strength of the reinforcement beam 117, preventing deformation. The reinforcement beam 117 can be made of aluminum. The bottom side frames can also be made of aluminum.

[0275] In some possible embodiments, combined Figure 30 As shown, the bottom frame 11 of the battery box 100 includes a blocking piece 1174. The reinforcing beam 117 is plate-shaped. The wire opening 1173 penetrates the reinforcing beam 117 along the thickness direction of the reinforcing beam 117. The blocking piece 1174 covers the thickness end surface of the wire opening 1173 of the reinforcing beam 117 to seal the shell cavity on one side of the wire opening 1173. The blocking piece 1174 not only enhances the structural strength of the reinforcing beam 117, but also covers the side of the shell cavity of the bottom frame 11 close to the wire opening 1173, preventing external impurities from entering the shell cavity through the wire opening 1173, which is difficult to clean. At the same time, the blocking piece 1174 can smoothly contact the cable 5 to prevent the cable 5 from being cut and damaged by the shell wall.

[0276] In some possible embodiments, the blocking piece 1174 includes two longitudinal pieces 11741 and two transverse pieces 11742. The two longitudinal pieces 11741 are located on either side of the cable opening 1173 in the horizontal direction, and the two transverse pieces 11742 are located on either side of the cable opening 1173 in the vertical direction. The longitudinal pieces 11741 are smoothly connected to the two transverse pieces 11742. The two longitudinal pieces 11741 and the two transverse pieces 11742 are smoothly connected to form a closed ring, which facilitates the passage of the cable 5 without cutting the cable 5.

[0277] In some possible embodiments, curved pieces are provided at both ends of the longitudinal sheet 11741 in the height direction, and the curved pieces are smoothly connected to the transverse sheet 11742. The longitudinal sheet 11741 supports the reinforcement beam 117 in the longitudinal direction (height direction), thereby enhancing the structural strength of the reinforcement beam 117 at the wiring opening 1211 and reducing or preventing deformation of the reinforcement beam 117.

[0278] In some possible implementations, adapter frames are connected to both sides of the high-voltage box 4. The adapter frames on both sides of the high-voltage box 4 are respectively connected to the corresponding reinforcing beams 117 via fasteners. The high-voltage box 4 of the present application is mounted on the bottom side of the bottom frame 11. By adding adapter frames on both sides of the high-voltage box 4, the high-voltage box 4 can be easily installed on the two reinforcing beams 117. The adapter frames can be assembled to the reinforcing beams 117 using bolts.

[0279] In some possible embodiments, such as Figure 30 and Figure 31 As shown, the bottom frame 11 may include a precision positioning device 111, which is located in the right angle formed between the reinforcing beam 117 and the bottom peripheral side frame, and is fixed to the reinforcing beam 117. A positioning matching groove is provided on the precision positioning device 111.

[0280] When the battery box 100 with the bottom frame 11 is seated on the battery box base 200 , the guide posts on the battery box base 200 can be inserted into the positioning and fitting grooves to achieve accurate positioning of the battery box 100 .

[0281] In some possible implementations, the bottom side frame is provided with a locking groove 1153. When the battery box 100 with the bottom frame 11 is unloaded onto the battery box base 200, the locking tongue 210 of the locking mechanism on the battery box base 200 can be inserted into the locking groove 1153 to secure the bottom frame 11 of the battery box 100.

[0282] This embodiment also provides a battery box 100, including: a top frame 12, a middle frame 13 and the above-mentioned bottom frame 11, the top frame 12 is located on the top of the bottom frame 11, the middle frame 13 is located between the bottom frame 11 and the top frame 12, the middle frame 13 is respectively connected to the top frame 12 and the bottom frame 11, and a battery installation space is formed between the top frame 12 and the bottom frame 11. The battery pack 2 is arranged in the battery installation space, and the cable 5 of the high-voltage box 4 is electrically connected to the battery pack 2. Through the above-mentioned structural design, the bottom frame 11 is sufficient to bear the weight of the battery pack 2 and the top frame 12, and the frame 1 of the battery box 100 has high structural strength, good stability and durability.

[0283] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A battery box with a switch that is easy to disassemble and maintain, characterized in that: include: bottom frame; A top frame, the top frame being located on top of the bottom frame and connected to the bottom frame, a battery installation space being formed between the top frame and the bottom frame, and a relief opening being provided on the top frame and communicating with the battery installation space; a battery pack, the battery pack being disposed in the battery installation space, the battery pack having a maintenance switch, the maintenance switch being exposed to the avoidance opening; A water cooling unit, the water cooling unit is arranged on the top frame and connected to the battery pack via a circulating water cooling pipe; A kettle, the kettle being arranged on the top frame, the kettle shielding the avoidance opening, and the kettle being connected to the circulating water cooling pipe; A lifting mechanism is provided on the top frame, and the lifting mechanism is in transmission connection with the kettle to drive the kettle to move up and down so that the kettle approaches or moves away from the avoidance opening.

2. The battery box with a switch that is easy to disassemble and maintain according to claim 1 is characterized in that: including a protective cover assembly; The protective cover assembly is arranged on the top frame and covers the avoidance opening; The protective cover assembly has an operation port, and the operation port is connected to the avoidance port; The kettle is arranged on the protective cover assembly, and the lifting mechanism is arranged on the protective cover assembly. The lifting mechanism drives the protective cover assembly to approach or move away from the protective cover assembly to cover or move away from the operation port.

3. The battery box with a switch that is easy to disassemble and maintain according to claim 2, characterized in that: The lifting mechanism includes a scissor frame; The bottom end of the scissor frame is slidably connected to the protective cover assembly, and the top end of the scissor frame is movably connected to the kettle; The scissor frame has a folded state and an extended state; In the folded state, the kettle covers the operation port, and in the extended state, the kettle is away from the operation port.

4. The battery box with a switch that is easy to disassemble and maintain according to claim 3 is characterized in that: The protective cover assembly is provided with a first bracket on both sides of the operation port, wherein the first bracket has a first groove; A second bracket is provided on both sides of the kettle, and the second bracket has a second groove; The scissors frame includes a first rod and a second rod hinged in the middle, one end of the first rod is movably connected to the first groove, the other end of the first rod is hinged to the second bracket, one end of the second rod is slidably connected to the second groove, and the other end of the second rod is hinged to the first bracket.

5. The battery box with a switch that is convenient for disassembly and maintenance according to claim 4 is characterized in that: In the folded state, the fastener can pass through the second bracket and be connected to the protective cover assembly, and the other end of the fastener is limited to the second bracket.

6. The battery box with a switch that is easy to disassemble and maintain according to claim 2, characterized in that: A connecting spout is provided on one side of the kettle facing the operating port; The circulating water cooling pipe has a water outlet pipe and a water return pipe, and one of the water outlet pipe and the water return pipe is connected to an extension pipe section; The extension pipe section is located inside the protective cover assembly, and the extension pipe section is connected to the connecting nozzle of the kettle; Preferably, the extended pipe section is a corrugated pipe.

7. The battery box with a switch that is easy to disassemble and maintain according to claim 1, characterized in that: The top frame comprises an upper bottom frame and an upper peripheral side frame located around the edge of the upper bottom frame, the upper peripheral side frame is used to connect to the hoisting equipment, the upper bottom frame is provided with the avoidance opening, the water cooling unit is arranged on the upper bottom frame, and the circulating water cooling pipe of the water cooling unit passes through the avoidance opening and extends to the battery pack; Preferably, the battery box includes a protective cover assembly, the circulating water cooling pipe extends along the upper bottom frame, and the protective cover assembly is connected to the upper bottom frame to cover the circulating water cooling pipe on the upper bottom frame.

8. The battery box with a switch that is convenient for disassembly and maintenance according to claim 7, characterized in that: The circulating water cooling pipe includes a straight extension pipe section and a curved extension pipe section, the straight extension pipe section is connected to the water cooling unit, one end of the curved extension pipe section is connected to the straight extension pipe section, and the other end passes through the avoidance opening and is connected to the battery pack, the protective cover assembly includes a first protective cover and a second protective cover, the first protective cover is connected to the upper bottom frame and covers the straight extension pipe section, the second protective cover is connected to the upper bottom frame and covers the avoidance opening and the curved extension pipe section; Preferably, a hoisting fitting hole is opened on the upper peripheral side frame, and the first protective cover is arranged close to the hoisting fitting hole and extends along the extension direction of the hoisting fitting hole; Preferably, a first channel is formed between the first protective cover and the upper bottom frame, and a second channel is formed between the second protective cover and the upper bottom frame. One end of the first protective cover extends to the water cooling unit, and the other end of the first protective cover extends to the second protective cover. The first protective cover and the second protective cover are connected, the first channel and the second channel are connected, and the circulating water cooling pipe extends through the first channel and the second channel in sequence. Preferably, the first protective cover and the second protective cover both include a top plate and a bent edge arranged on the edge of the top plate, the bent edge is fixedly connected to the upper bottom frame, there is a gap between the top plate and the upper bottom frame, and one side of the top plate of the first protective cover is fitted and fixed on the top plate of the second protective cover.

9. The battery box with a switch that is convenient for disassembly and maintenance according to claim 8, characterized in that: A cooling fan is provided inside the water cooling unit, and a rotation axis of the cooling fan is perpendicular to the upper base frame; Preferably, the water cooling unit has a casing, the bottom casing of the casing is supported on the upper bottom frame, the top casing of the casing is exposed to the top frame, and the top casing is provided with an air outlet; Preferably, the water cooling unit has a peripheral shell connecting the top shell and the bottom shell, and an air inlet is provided on the peripheral shell; Preferably, the water cooling unit is arranged at the middle position of the upper base frame along the length direction, the upper peripheral side frame has two long frame sides and two short frame sides, the peripheral side shell of the water cooling unit has two opposite first side shells and two opposite second side shells, the two second side shells are respectively attached to the two long sides, the two first side shells respectively have a gap with the corresponding short frame sides, and the air inlet is provided on the first side shell; Preferably, an air inlet is also provided on the second side shell, and a vent is provided on the edge of the long frame, and the vent is connected to the air inlet on the second side shell.

10. The battery box with a switch that is convenient for disassembly and maintenance according to any one of claims 7 to 9, characterized in that: It comprises a limiting beam, which is detachably connected to the upper peripheral side frame and is limited to two sides of the water cooling unit.

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