A battery box

Abstract

The application discloses a battery box, comprising a frame and a battery pack. The frame comprises a bottom frame, a top frame and a middle frame, the bottom frame and the top frame are arranged at intervals, the middle frame is located between the bottom frame and the top frame, and the middle frame is connected with the top frame and the bottom frame respectively, a battery mounting space is formed between the top frame and the bottom frame, the top frame has a bottom plate, the bottom plate has an avoiding opening communicating with the battery mounting space, a water retaining frame is arranged around the edge of the avoiding opening on the bottom plate, the battery pack is arranged in the battery mounting space, a maintenance switch is arranged on the battery pack, and the maintenance switch is exposed to the avoiding opening. The battery box of the application sets the avoiding opening on the top frame, so that the maintenance switch of the battery pack is exposed to the avoiding opening, manual disassembly and maintenance of the maintenance switch are facilitated, power supply of the battery box is controlled, and relevant maintenance work can be carried out.

Description

Technical Field

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

[0002] A battery box typically consists of a frame and a battery pack. The frame provides space for battery installation, and the battery pack is housed within this space. The frame also has a top frame located at the top of the battery box. A maintenance switch (MSD) is usually installed on the battery pack. The main function of the MSD is to manually disconnect the high-voltage battery output for maintenance. Once the MSD is disconnected, the battery pack's output voltage immediately drops to zero, ensuring system safety. If the MSD needs to be located on the top side of the battery pack, the top frame obstructs the top structure of the battery pack, making the installation and removal of the MSD more difficult and hindering maintenance efficiency. For example, utility model patent application number 202121989052.8 provides a vehicle energy system with a replaceable battery box, which places the water-cooled unit at the bottom of the battery box. If the MSD is located on the top of the battery pack, the top structure of the frame will obstruct the top of the battery pack, making the installation and removal of the MSD inconvenient. For example, the invention patent with application number 202410201848.4 provides a battery box in which the high-voltage box and water-cooling unit are both located at the bottom of the frame. If the maintenance switch is set at the top of the battery pack, the top of the frame will block the top of the battery pack, making it inconvenient to install or remove the maintenance switch.

[0003] ​​ Utility Model Content

[0004] To solve one of the above-mentioned technical problems, this utility model provides a battery box.

[0005] The present invention adopts the following technical solution:

[0006] A battery box, comprising:

[0007] The frame includes a bottom frame, a top frame, and a middle frame. The bottom frame and the top frame are spaced apart. The middle frame is located between the bottom frame and the top frame and connects the top frame and the bottom frame. A battery mounting space is formed between the top frame and the bottom frame. The top frame has a base plate with a clearance opening communicating with the battery mounting space. A water-blocking frame is provided around the edge of the clearance opening on the base plate.

[0008] A battery pack is disposed within the battery installation space, and a maintenance switch is provided on the battery pack, the maintenance switch being exposed in the clearance opening.

[0009] Optionally, the water-blocking frame is formed by bending the base plate, or the water-blocking frame is welded / bonded to the base plate.

[0010] Optionally, the battery box includes a water-cooled unit, which is disposed on the top frame and connected to a circulating water-cooled pipe that passes through the clearance opening and is connected to the battery pack.

[0011] Optionally, a riser is provided on the base plate, the circulating water cooling pipe is connected to the riser, and there is a gap between the circulating water cooling pipe and the water baffle frame.

[0012] Optionally, the circulating water cooling pipe includes an outlet pipe and a return pipe;

[0013] The battery pack has a water inlet and a water outlet, which are exposed to the clearance opening;

[0014] The outlet pipe passes through the clearance opening and connects to the return water inlet, and the return water pipe passes through the clearance opening and connects to the inlet.

[0015] Optionally, the clearance opening is elongated.

[0016] The water inlet, the maintenance switch, and the return water inlet are arranged sequentially along the length of the clearance opening.

[0017] Optionally, the battery box includes a protective cover assembly disposed on the base plate and covering the clearance opening.

[0018] Optionally, the battery box includes at least two battery packs;

[0019] At least two clearance openings are provided on the base plate;

[0020] The maintenance switches for each battery pack are exposed in their respective clearance openings;

[0021] The battery box has at least two protective cover assemblies, each of which covers a corresponding clearance opening.

[0022] Optionally, the battery box includes a water bottle;

[0023] The kettle is mounted on the protective cover assembly.

[0024] Optionally, the battery box includes a T-Box remote communication module, which is mounted on the protective cover assembly.

[0025] By adopting the above technical solution, this application has the following beneficial effects:

[0026] The battery box of this application has a clearance opening on the top frame, which exposes the maintenance switch of the battery pack, making it convenient to manually remove and install the maintenance switch to control the power off of the battery box for related maintenance work.

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0029] Figure 1 A front view of the battery box with convenient wiring provided in an embodiment of this application is shown;

[0030] Figure 2 A top view of the battery box with convenient wiring provided in an embodiment of this application is shown;

[0031] Figure 3 This diagram illustrates the structure of the top frame of the battery box with convenient wiring provided in an embodiment of this application.

[0032] Figure 4 Show Figure 3 Enlarged view of section A in the middle;

[0033] Figure 5 This illustration shows a schematic diagram of the battery pack structure of the battery box with convenient wiring provided in an embodiment of this application;

[0034] Figure 6 This diagram shows a structural diagram of a battery box that conceals the battery pack for convenient wiring, as provided in an embodiment of this application.

[0035] Figure 7 A partial structural schematic diagram of the battery box with convenient wiring provided in an embodiment of this application is shown;

[0036] Figure 8 This illustration shows another partial structural diagram of the battery box with convenient wiring provided in an embodiment of this application;

[0037] Figure 9 A partial structural diagram of the battery box top frame with convenient wiring provided in an embodiment of this application is shown;

[0038] Figure 10 A top view showing a partial structure of the battery box top frame with convenient wiring provided in an embodiment of this application;

[0039] Figure 11 This illustration shows a schematic diagram of the battery pack structure of the battery box with convenient wiring provided in an embodiment of this application;

[0040] Figure 12 This diagram shows a partial structural schematic of a hidden protective cover assembly on the top frame of a battery box with convenient wiring, as provided in an embodiment of this application.

[0041] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0043] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Example 1

[0046] See Figures 1 to 12As shown in the figure, this application embodiment provides a battery box 100, including a frame 1 and a battery pack 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, and the middle frame 13 connects the top frame 12 and the bottom frame 11 respectively. A battery mounting space is formed between the top frame 12 and the bottom frame 11. The top frame 12 has a bottom plate 1215, and the bottom plate 1215 has a clearance opening 1216 communicating with the battery mounting space. A water-blocking frame 1213 is provided around the edge of the clearance opening 1216 on the bottom plate 1215. The battery pack 2 is disposed in the battery mounting space, and a maintenance switch 25 is provided on the battery pack 2, which is exposed in the clearance opening 1216. The battery box 100 of this application has a clearance opening 1216 on the top frame 12, so that the maintenance switch 25 of the battery pack 2 is exposed in the clearance opening 1216, which facilitates manual disassembly and assembly of the maintenance switch 25 to control the power off of the battery box 100 for related maintenance work.

[0047] The water-blocking frame 1213 can be a closed ring. When liquid enters the bottom plate 1215 on the bottom frame 11, the water-blocking frame 1213 prevents water from flowing into the battery box 100 through the avoidance opening 1216, reducing safety hazards. For example, a water-cooling unit 3 can be installed on the top frame 12. The water condensed in the water-cooling unit 3 will flow into the bottom plate 1215, and the design of the water-blocking frame 1213 can effectively block the water.

[0048] A protective cover assembly can also be installed on the top frame 12 to cover the top of the clearance opening 1216 and prevent rainwater from entering the battery box 100 directly through the clearance opening 1216.

[0049] In some possible implementations, the water-blocking frame 1213 can be formed by bending the base plate 1215, i.e., the water-blocking frame 1213 and the base plate 1215 are integrally formed, resulting in high structural strength. The water-blocking frame 1213 can also be formed by shearing and bending the base plate 1215. Among the multiple side plates formed after bending, adjacent side plates can be welded and fixed, thereby forming a closed U-shaped water-blocking frame 1213. Alternatively, the water-blocking frame 1213 can also be a separate component from the base plate 1215, and can be welded / bonded to the base plate 1215 later.

[0050] In some possible implementation schemes, combined Figure 11 and Figure 12As shown, the battery box 100 includes a water-cooled unit 3, which is mounted on the top frame 12. The water-cooled unit 3 is connected to a circulating water-cooling pipe 36, which passes through a clearance opening 1216 and connects to the battery pack 2. The water-cooled unit 3 is mounted on the top frame 12, and the circulating water-cooling pipe 36 can extend along the clearance opening 1216 into the box and connect to the battery pack 2, thus simplifying the pipe layout structure.

[0051] In some possible implementations, such as Figure 12 As shown, a riser 1218 is provided on the base plate 1215, and the circulating water cooling pipe 36 is connected to the riser 1218, so that there is a gap between the circulating water cooling pipe 36 and the water baffle 1213. By setting the riser 1218, the circulating water cooling pipe 36 is raised, preventing the circulating water cooling pipe 36 from directly contacting the water baffle 1213 and being cut or damaged by the water baffle 1213.

[0052] In some possible implementation schemes, combined Figure 11 and Figure 12 As shown, the circulating water cooling pipe 36 includes an outlet pipe and a return pipe. The battery pack 2 has an inlet 23 and a return pipe 24. Both the inlet 23 and the return pipe 24 are exposed to the relief opening 1216. The outlet pipe passes through the relief opening 1216 and is connected to the inlet 23. The return pipe passes through the relief opening 1216 and is connected to the return pipe 24.

[0053] Both the water inlet 23 and the water outlet 24 are located on 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.

[0054] In some possible implementations, the clearance opening 1216 is elongated, with the water inlet 23, maintenance switch 25, and return water outlet 24 arranged sequentially along the length of the clearance opening 1216. By making the clearance opening 1216 elongated, the water inlet 23, maintenance switch 25, and return water outlet 24 are all exposed within the clearance opening 1216, facilitating both the installation and removal of the maintenance switch 25 and the connection of the circulating water cooling pipe 36. Specifically, the water inlet 23 and return water outlet 24 on the battery pack 2 are located on opposite sides of the maintenance switch 25.

[0055] In some possible implementations, the battery box 100 includes a protective cover assembly 125, which is disposed on the base plate 1215 and covers the clearance opening 1216. This prevents rainwater from directly entering the interior of the battery box 100 through the clearance opening 1216. The protective cover assembly 125 also serves to conceal and protect the maintenance switch 25, preventing it from being accidentally pulled out. The protective cover assembly 125 may cover the circulating water cooling pipe 36 exposed on the top frame 12, preventing the circulating water cooling pipe 36 from being damaged by impacts or bumps from external structures.

[0056] In some possible implementations, the battery box 100 includes at least two battery packs 2, and at least two clearance openings 1216 are provided on the base plate 1215. The maintenance switch 25 of each battery pack 2 is exposed in the corresponding clearance opening 1216. The battery box 100 has at least two protective cover assemblies 125, and each protective cover assembly 125 covers the corresponding clearance opening 1216.

[0057] In some possible implementations, the battery box 100 includes a water tank 10, which is mounted on the protective cover assembly 125, making full use of the space. The water tank 10 is connected to the circulating water cooling pipe 36 for adding coolant to the water-cooled unit 3.

[0058] Optionally, the battery box 100 includes a T-Box remote communication module 6, which is mounted on the protective cover assembly 125. The T-Box remote communication module 6 and the water bottle 10 can be respectively set on different protective cover assemblies 125, making reasonable and full use of the space of the top frame.

[0059] Example 2

[0060] See Figures 1 to 12 As shown in the figure, this application embodiment provides a battery box 100 with convenient wiring, including: a frame 1, which includes a bottom frame 11, a top frame 12, and a middle frame 13. A high-voltage box 4 is disposed on the bottom frame 11, the top frame 12 is located on 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 disposed 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, which connects the bottom frame 11 and the top frame 12. A battery pack 2 is disposed between the bottom frame 11 and the top frame 12, and a cable 5 is connected to the longitudinal beam 131. The cable 5 extends along the longitudinal beam 131, with one end of the cable 5 connected to the high-voltage box 4 and the other end of the cable 5 connected to the electrical device.

[0061] In this embodiment, the longitudinal beam 131 connects the bottom frame 11 and the top frame 12, increasing the structural strength of the frame 1 of the battery box 100. It also provides a fixing position for the cable 5, allowing the cable 5 to extend along the longitudinal beam 131 to the top frame 12. This facilitates the connection of the high-voltage box 4 and the various electrical devices on the top frame 12, and also makes the cable 5 arranged in a neat and orderly manner, avoiding the problem of the cable 5 hanging messily and being easily bent and damaged.

[0062] In some possible implementations, the middle frame 13 includes two side frames 132, which are respectively located 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 disposed between the side frames 132 and the longitudinal beam.

[0063] The battery box 100 of this application can be installed on a heavy truck. One surface of the battery box 100 perpendicular to its thickness direction faces the front of the heavy truck, and the other surface of the battery box 100 perpendicular to its thickness direction faces the rear of the truck. The side brackets 132 on both sides of the battery box 100 face (perpendicular) to the width direction of the truck. The side brackets 132 serve to protect the battery pack 2.

[0064] The lightweight battery box 100 provided in this embodiment is equipped with side frames 132, which can protect the battery box 100 from both sides of the battery pack 2, preventing the battery pack 2 from being directly impacted by external forces and thus avoiding deformation and damage. The side frames 132 also facilitate the installation of the sealing plate, 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 to form a hollow structure, which is beneficial for weight reduction and realizes the lightweight design of the battery box 100, reducing the weight of the battery box 100.

[0065] In some possible implementations, multiple cable bundles are provided on the longitudinal beam, with each bundle spaced apart along the length of the longitudinal beam 131, and each bundle is connected to a cable 5. Each bundle secures a different position of the cable 5, keeping the cable 5 close to the longitudinal beam 131. The cable bundles can be cable ties, ropes, or other structures.

[0066] In some possible implementations, such as Figure 10 and Figure 12 As shown, the top frame 12 has an upper bottom frame 121 and an upper peripheral frame 122 located around the edge of the upper bottom frame 121. Each electrical device is installed in the upper bottom frame 121, and a cable routing port 1211 is provided on the upper bottom frame 121. Cables extend to the electrical devices through the cable routing port 1211. By providing the cable routing port 1211 on the upper bottom frame 121, cables 5 can be easily passed through and extended into the top frame 12 to connect to the electrical devices within the top frame 12.

[0067] In some possible implementations, such as Figure 10 As shown, a water baffle 1212 is provided on the upper surface of the upper bottom frame 121 along the edge of the wiring port 1211. The water baffle 1212 can be connected to the upper peripheral frame 122 to form a closed ring structure, which can play a role in blocking water and prevent water on the upper bottom frame 121 from flowing directly into the battery box 100 through the wiring port 1211, thereby improving safety.

[0068] In some possible implementations, the electrical equipment includes a water-cooled unit 3, which is mounted on the top frame 12, and cables 5 are connected to the water-cooled unit 3.

[0069] The upper bottom frame 121 and the upper peripheral side frame 122 enclose an upper cavity with an open top. The water-cooled unit 3 is housed in the upper cavity and is directly supported on the upper bottom frame 121. The upper edge of the water-cooled unit 3 does not protrude beyond the upper edge of the peripheral side frame and is protected by the upper peripheral side frame 122.

[0070] In some possible implementations, the electrical device may also 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.

[0071] In some possible implementation schemes, combined Figure 7 and Figure 8 As shown, mounting blocks 7 protrude from the top frame 12 and / or the bottom frame 11, and the ends of the longitudinal beams 131 are connected to the mounting blocks 7 by fasteners 1113. The longitudinal beams 131 and the mounting blocks 7 are detachably connected, facilitating disassembly and assembly for later maintenance.

[0072] The mounting block 7 may be provided with a threaded groove. One end of the fastener passes through the longitudinal beam 131 and is threaded into the threaded groove, while the other end of the fastener is confined to the longitudinal beam 131. The fastener 1113 can be a bolt. Specifically, the longitudinal beam 131 has a hollow cavity, and a notch 1311 communicating with the hollow cavity is opened at the end (top or bottom) of the longitudinal beam 131. The fastener is a bolt, which has a stud and a cap that connects to the stud. The stud passes through the notch 1311 and the shell wall of the longitudinal beam 131 in sequence and is threaded into the threaded groove on the mounting block 7. The cap extends into the cavity from the notch 1311 and fits against the inner wall of the longitudinal beam 131, thereby achieving effective connection between the longitudinal beam 131 and the top frame 12 and the bottom frame 11, respectively.

[0073] Multiple locking grooves 1153 can be provided on the bottom frame 11 of the frame 1 for cooperating with the locking mechanism. The locking tongue of the locking mechanism can be inserted into the locking groove to lock the battery box. The locking mechanism can be set on the battery box base for supporting the battery box.

[0074] The water-cooled unit 3 has a casing, with its bottom shell supported on a top frame 12 and its top shell exposed above the top frame 12. An air outlet 31 is located on the top shell. The rotation axis of the cooling fan inside the water-cooled unit 3 can pass through the air outlet 31, allowing the airflow driven by the cooling fan to be smoothly discharged from the casing through the air outlet 31. The water-cooled unit 3 also has a peripheral shell connecting the top and bottom shells, with an air inlet on the peripheral shell. The air inlet is positioned unobstructed, allowing for unobstructed airflow.

[0075] Example 3

[0076] See Figures 1 to 12As shown, this application embodiment provides a battery box 100, including: a bottom frame 11, a top frame 12, a middle frame 13, a battery pack 2, and cables 5. A high-voltage box 4 is disposed on the bottom frame 11, the top frame 12 is located on top of the bottom frame 11, and there is a gap between the top frame 12 and the bottom frame 11. A water-cooled unit 3 is disposed on the top frame 12, the middle frame 13 is located between the bottom frame 11 and the top frame 12, and the middle frame 13 includes a longitudinal beam 131, which connects the top frame 12 and the bottom frame 11 respectively. The battery pack 2 is disposed between the bottom frame 11 and the top frame 12, and the cables 5 are connected to the longitudinal beam 131 and extend along the longitudinal beam 131. One end of the cables 5 is connected to the high-voltage box 4, and the other end of the cables 5 is connected to the water-cooled unit 3.

[0077] In this embodiment, the water-cooled unit 3 is placed on the top frame 12, which does not occupy the space of the bottom frame 11, thus reducing the size of the bottom frame 11. This embodiment also utilizes a longitudinal beam 131 to connect the bottom frame 11 and the top frame 12, increasing the structural strength of the battery box 100 frame 1, and providing a fixing point for the cable 5. This allows the cable 5 to extend along the longitudinal beam 131 to the top frame 12, facilitating the connection between the high-voltage box 4 and the water-cooled unit 3. This results in a neat and orderly cable arrangement, reducing the likelihood of malfunctions and preventing the cable 5 from becoming messy and prone to breakage.

[0078] In some possible implementation schemes, combined Figure 6 and Figure 7 As shown, the central frame 13 includes two longitudinal beams 131. 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-cooled unit 3. The communication line 52 extends along the other longitudinal beam 131 and is at least partially electrically connected to the water-cooled unit 3. The power supply line 51 is used by the high-voltage box 4 to supply power to the water-cooled unit 3, and the communication line 52 is used for information exchange between the high-voltage box 4 and the water-cooled unit 3. The power supply line 51 is a high-voltage line, while the communication line 52 is a low-voltage signal line. In this embodiment, the power supply line 51 and the communication line 52 are set separately on both sides, making the line layout clearer and facilitating production, installation, and maintenance. 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 prevented from interfering with the low-voltage communication line 52.

[0079] In some possible implementations, such as Figure 1 and Figure 6As shown, the 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 located between two adjacent battery packs 2, and the two longitudinal beams 131 are respectively positioned on both sides of the bottom frame 11 along its width. The arrangement of the longitudinal beams 131 does not interfere with the arrangement of the individual battery packs 2. Furthermore, the longitudinal beams 131 are located in the gap between two adjacent battery packs 2, thus concealing the cables 5 extending along the longitudinal beams 131 and protecting the cables 5.

[0080] In some possible implementations, such as Figures 7 to 10 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 cable routing port 1211 is provided on the upper bottom frame 121. The water-cooled unit 3 is disposed on the upper bottom frame 121. The power supply line 51 and the communication line 52 both extend to the water-cooled unit 3 through the cable routing port 1211. By providing the cable routing port 1211 on the upper bottom frame 121, the cables 5 can be easily passed through and extended into the top frame 12 to connect to the water-cooled unit 3 inside the top frame 12.

[0081] In some possible implementations, such as Figure 10 As shown, a water baffle 1212 is provided on the upper surface of the upper bottom frame 121 along the edge of the wiring port 1211. The water baffle 1212 is a closed ring, or the water baffle 1212 can be connected to the upper peripheral frame 122 to form a closed ring structure, which can play a role in blocking water and prevent water on the upper bottom frame 121 from flowing directly into the battery box 100 through the wiring port 1211, thereby improving safety.

[0082] In some possible implementation schemes, combined Figures 7 to 10 As shown, the cable 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 is relatively thick, making bending inadvisable. By positioning the cable routing opening 1211 near the corresponding longitudinal beam 131, the power supply line 51 can extend into the top frame 12 without bending or with only a slight bend after passing through the cable routing opening 1211. The communication line 52, being a low-voltage signal line with a small diameter, can extend from the top of the corresponding longitudinal beam 131 to one side of another longitudinal beam 131, and ultimately pass through the cable routing opening 1211 into the top frame 12.

[0083] In some possible implementation schemes, combined Figure 7 and Figure 9 As shown, the casing of the water-cooled unit 3 is provided with a cable pass-through port, through which the cable 5 extends into the top frame 12 via the cable pass-through port 1211 and extends into the casing of the water-cooled unit.

[0084] Combination Figure 5 and Figure 6As shown, the side shell of the water-cooled unit's casing corresponding to the wiring port 1211 includes a first shell wall 331 and a second shell wall 332. The first shell wall 331 is attached to the upper peripheral frame 122 of the top frame 12. A wiring cavity 124 is formed between the second shell wall 332 and the upper peripheral frame 122. A wire through-hole is provided on the second shell wall 332. The wiring cavity 124 connects the wire through-hole and the wiring port 1211.

[0085] The first shell wall 331 protrudes from the second shell wall 332 and can fit snugly with the upper peripheral frame 122. The second shell wall 332 has a gap with the inner wall of the upper peripheral frame 122, forming a cable routing cavity 124. After the cable 5 passes through the cable routing port 1211 and extends into the cable routing cavity 124, it has a certain bending space, which allows the cable 5 to bend and turn smoothly and then pass through the cable insertion port to extend into the water-cooled unit 3.

[0086] In some possible implementations, the top shell of the housing has an extension wall 38 extending out of the peripheral sidewall, which covers the wiring opening 1211. The extension wall 38 is provided to shield the top of the wiring opening 1211, preventing rainwater from falling directly into the wiring opening 1211 and entering the battery compartment 100.

[0087] In some possible implementations, such as Figure 5 As shown, the battery box 100 also includes a flexible sealing sheet 35. The flexible sealing sheet 35 is attached to the surface of the housing and covers the cable entry point. A slit is provided on the flexible sealing sheet 35, through which the cable 5 passes. The flexible sealing sheet 35 serves to block water, impurities, and dust, preventing impurities from entering the interior of the water-cooled unit 3.

[0088] In some possible implementations, the battery box 100 includes a T-Box remote communication module 6, which is disposed on the top frame 12. An outlet for a connecting cable cavity 124 is formed between the housing and the upper peripheral side frame 122. A portion of the communication cable 52 extends out of the outlet from the cable cavity 124 and extends to the T-Box remote communication module 6 to connect to the T-Box remote communication module 6.

[0089] Example 4

[0090] See Figures 1 to 12As shown in the embodiment of this application, the battery box 100 is further described in detail, including: 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, and the middle frame 13 is located between the bottom frame 11 and the top frame 12, connecting both the top frame 12 and the bottom frame 11. A battery mounting space is formed between the bottom frame 11 and the top frame 12. The top frame 12 is used for connection to hoisting equipment. The battery pack 2 is disposed within the battery mounting space. The water-cooling unit 3 is disposed on the top frame 12 and connected to a circulating water-cooling pipe 36, which extends from the top frame 12 to the battery pack 2. The protective cover assembly 125 is disposed on the top frame 12 and covers the circulating water-cooling pipe 36.

[0091] The protective cover assembly 125 can be a metal structure, such as aluminum alloy or steel plate, or it can be made of polymer materials, such as a rigid plastic structure.

[0092] In this embodiment of the application, the top frame 12 and the hoisting equipment are detachably connected, which presents a problem of the hoisting equipment squeezing and damaging 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 hoisting equipment from squeezing and damaging the circulating water cooling pipe 36, extending the service life of the circulating water cooling pipe 36, and improving safety.

[0093] In some possible implementations, 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-cooled unit 3 is supported on the upper bottom frame 121, the circulating water-cooled pipe 36 extends along the upper bottom frame 121, and the protective cover assembly 125 is connected to the upper bottom frame 121 to cover the circulating water-cooled pipe 36.

[0094] The upper bottom frame 121 and the upper peripheral side frame 122 enclose an upper cavity with an open top. The water-cooled unit 3 is housed in the upper cavity and is directly supported on the upper bottom frame 121. The upper edge of the water-cooled unit 3 does not protrude beyond the upper edge of the peripheral side frame and is protected by the upper peripheral side frame 122.

[0095] In some possible implementation schemes, combined Figure 12As shown, an opening 1216 is provided on the upper bottom frame 121. 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. One end of the curved extension section 362 is connected to the straight extension section 361, and the other end passes through the 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 bottom frame 121 and covers the straight extension section 361. The second protective cover 1252 is connected to the upper bottom frame 121 and covers the opening 1216 and the curved extension section 362.

[0096] A straight extension section 361 is provided on the side of the circulating water cooling pipe 36 near the water-cooled unit 3 body to avoid kinking or bending at the connection part 82, which facilitates smooth water flow and reliable connection between the circulating water cooling pipe 36 and the water-cooled unit body. A curved extension section 362 is provided on the side near the clearance opening 1216 to easily and smoothly extend through the clearance opening 1216 to the bottom side of the battery pack 2 for connection.

[0097] In some possible implementations, such as Figure 3 and Figure 12 As shown, a lifting groove 1223 is provided on the upper peripheral frame 122. The lifting device's lifting tool can be attached to the lifting groove 1223 to achieve effective connection with the battery box 100. A portion of the circulating water cooling pipe 36 is located below the lifting groove 1223 and is easily squeezed by the lifting tool. In this embodiment, a first protective cover 1251 is positioned close to the lifting groove 1223 and extends along the extension direction of the lifting groove 1223. The first protective cover 1251 extends along the lower edge of the upper peripheral frame 122, effectively protecting a portion of the circulating water cooling pipe 36 along the lower edge of the lifting groove 1223. The extension length of the first protective cover 1251 is not shorter than the length of the lifting groove 1223.

[0098] In some possible implementations, a first channel is formed between the first protective cover 1251 and the upper bottom frame 121, and a second channel is formed between the second protective cover 1252 and the upper bottom frame 121. One end of the first protective cover 1251 extends to the water-cooled 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, and the first channel and the second channel are connected. The circulating water-cooling pipe 36 extends through the first channel and the second channel in sequence.

[0099] The first protective cover 1251 and the second protective cover 1252 are connected, and their channels are interconnected without any disconnection. Therefore, they can provide comprehensive protection for the circulating water cooling pipe 36. It should be noted that in this application, the first protective cover 1251 and the second protective cover 1252 can be either a single piece or separate parts. When the first protective cover 1251 and the second protective cover 1252 are separate parts, the workpiece volume can be reduced, facilitating transportation and processing. For example, smaller workpieces are more conducive to material saving during fabrication.

[0100] In some possible implementation schemes, combined Figure 3 and Figure 4 As shown, both the first protective cover 1251 and the second protective cover 1252 include a top plate 125a and a bent edge 125b disposed on the edge of the top plate 125a. The bent edge 125b is fixedly connected to the upper bottom frame 121. There is a gap between the top plate 125a and the upper bottom frame 121, forming the aforementioned channel. One end of the top plate 125a of the first protective cover 1251 is attached and fixed to 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 integral structure, so that the first channel and the second channel are directly connected and there is no disconnected area between them.

[0101] The side of the bent plate 443 away from the top plate 125a can be bent to form a fitting edge, which is attached to the upper bottom frame 121. Fasteners pass through the fitting edge and are connected to the upper bottom frame 121.

[0102] In some possible implementations, a reinforcing member is provided on the upper bottom frame 121, the reinforcing member being connected to the upper peripheral frame or the upper bottom frame, and at least a portion of the bent edge is connected to the reinforcing member or the upper peripheral frame.

[0103] The reinforcing component can increase the height of the protective cover assembly 125 and enlarge the size of the internal channels to facilitate the accommodation of the circulating water cooling pipe 36 or other structures. The reinforcing component 1217 can also lift and increase the structural strength of the protective cover assembly 125, preventing the protective cover assembly 125 from easily falling off. Part of the bent edge 125b of the protective cover assembly 125 can be directly fixed to the beam on the upper peripheral frame 122.

[0104] In some possible implementations, the battery box 100 includes two battery packs 2, and two clearance openings 1216 are provided on the upper bottom frame 121. The two clearance openings 1216 are respectively located on both sides of the water-cooled unit 3. The water-cooled unit 3 is located in the middle of the top frame 12. The water-cooled unit 3 is connected to two circulating water-cooling pipes 36, which extend to the two clearance openings 1216 respectively. The battery box 100 has two protective cover assemblies 125, which respectively cover the corresponding circulating water-cooling pipes 36.

[0105] It should be noted that the circulating water cooling pipe 36 typically includes two pipes, namely a return water pipe and a return water pipe, which are respectively connected to the corresponding interfaces on the battery pack 2. In this embodiment, circulating water cooling pipes 36 are respectively provided on both sides of the water-cooled unit 3 for easy connection to the two battery packs 2. Corresponding protective cover assemblies 125 can be provided for the two circulating water cooling pipes 36.

[0106] like Figure 2 and Figure 3 As shown, the two protective cover assemblies 125 have roughly the same structure. This allows the first protective cover 1251 of the two assemblies to be designed to have identical dimensions and shape, and both can share materials. The second protective cover 1252 of both assemblies is designed with a corresponding shape and size according to actual requirements.

[0107] In some possible implementations, the battery box 100 includes a water tank 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. By placing the water tank 10 on the second protective cover 1252, the top space of the frame 1 can be fully utilized. The water tank 10 can be used to replenish liquid into the water-cooled unit 3.

[0108] In some possible implementations, the battery box 100 includes a T-Box remote communication module 6, which is mounted on a second protective cover 1252 of another protective cover assembly 125. By placing the T-Box remote communication module 6 on the protective cover assembly 125, a compact design is achieved, making full use of the space at the top of the frame 1.

[0109] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A battery box, characterized in that, include: The frame includes a bottom frame, a top frame, and a middle frame. The bottom frame and the top frame are spaced apart. The middle frame is located between the bottom frame and the top frame and connects the top frame and the bottom frame. A battery mounting space is formed between the top frame and the bottom frame. The top frame has a base plate with a clearance opening that communicates with the battery mounting space. A water-blocking frame is provided around the edge of the clearance opening on the base plate. A battery pack is disposed within the battery installation space, and a maintenance switch is provided on the battery pack, the maintenance switch being exposed in the clearance opening.

2. The battery box according to claim 1, characterized in that, The water-blocking frame is formed by bending the base plate, or the water-blocking frame is welded / bonded to the base plate.

3. A battery box according to claim 1, characterized in that, It includes a water-cooled unit, which is installed on the top frame and connected to a circulating water-cooled pipe that passes through the clearance opening and is connected to the battery pack.

4. A battery box according to claim 3, characterized in that, A riser is provided on the base plate, and the circulating water cooling pipe is connected to the riser. There is a gap between the circulating water cooling pipe and the water baffle frame.

5. A battery box according to claim 3, characterized in that, The circulating water cooling pipe includes an outlet pipe and a return pipe; The battery pack has a water inlet and a water outlet, which are exposed to the clearance opening; The outlet pipe passes through the clearance opening and connects to the inlet, and the return pipe passes through the clearance opening and connects to the return outlet.

6. A battery box according to claim 5, characterized in that, The clearance is elongated. The water inlet, the maintenance switch, and the return water inlet are arranged sequentially along the length of the clearance opening.

7. A battery box according to claim 1, characterized in that, It includes a protective cover assembly disposed on the base plate and covering the clearance opening.

8. A battery box according to claim 7, characterized in that, Includes at least two battery packs; At least two clearance openings are provided on the base plate; The maintenance switches for each battery pack are exposed in their respective clearance openings; The battery box has at least two protective cover assemblies, each of which covers a corresponding clearance opening.

9. A battery box according to claim 7, characterized in that, Including a kettle; The kettle is mounted on the protective cover assembly.

10. A battery box according to claim 7, characterized in that, It includes a T-Box remote communication module, which is mounted on the protective cover assembly.

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