Drawer type heavy truck energy storage module convenient for battery replacement

Abstract

The invention relates to the technical field of energy storage module replacement, in particular to a drawer type heavy truck energy storage module convenient for battery replacement, which comprises a shell, an energy storage frame arranged in the shell, a plurality of groups of energy storage modules, a plurality of limiting devices and a connecting device, a plurality of vertically arranged energy storage areas are arranged in the energy storage frame, and the multiple groups of energy storage modules are sequentially arranged in the corresponding energy storage areas; each limiting device is arranged outside each corresponding energy storage module and is in sliding connection with the energy storage frame so as to drive each energy storage module to move in the length direction of the energy storage frame; the connecting device is arranged on the outer side of the energy storage frame and can be selectively in threaded connection with a limiting device arranged outside the to-be-replaced energy storage module so as to drive the to-be-replaced energy storage module to move out of or move into the energy storage area.

Description

Technical Field

[0001] This invention relates to the field of energy storage module replacement technology, specifically a drawer-type heavy-duty truck energy storage module that facilitates battery replacement. Background Technology

[0002] With the development of the new energy vehicle industry, the application of battery-swapping heavy-duty trucks is becoming increasingly common, especially those using rear-mounted batteries, which offer fast battery swapping efficiency and are simple and convenient to operate. The battery pack mainly consists of multiple modules and a frame, with the modules stacked on the frame to provide power. During use, if any individual module within the battery pack is damaged, it will affect the overall power supply to the heavy-duty truck, requiring the replacement of the damaged module.

[0003] Since the modules are all inside the frame, they need to be removed one by one until the damaged ones are removed. This replacement method is inefficient and difficult to operate, causing a lot of inconvenience to maintenance personnel. Therefore, this invention provides a drawer-type heavy truck energy storage module that is easy to replace with batteries. Summary of the Invention

[0004] The purpose of this invention is to provide a drawer-type, easily replaceable battery energy storage module for heavy-duty trucks, in order to solve the problem of inconvenient module replacement mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A drawer-type, easily replaceable battery energy storage module for heavy-duty trucks includes a housing, an energy storage frame disposed within the housing, multiple energy storage modules, multiple limiting devices, and a connecting device. The energy storage frame contains multiple vertically arranged energy storage zones, and the multiple energy storage modules are sequentially arranged within their respective energy storage zones. Each limiting device is located outside its corresponding energy storage module and is slidably connected to the energy storage frame to move each energy storage module along the length of the energy storage frame. The connecting device is located outside the energy storage frame and can selectively connect threadedly to the limiting device located outside the energy storage module to be replaced, thereby moving the energy storage module to be replaced out of or into the energy storage zone.

[0006] Preferably, the energy storage frame includes a pair of base frames, two sets of support rods symmetrically arranged in the longitudinal direction, multiple crossbars, and multiple pairs of load-bearing rods; several longitudinal support rods and several crossbars are vertically staggered and fixedly arranged between a pair of base frames, and multiple pairs of load-bearing rods are equidistantly arranged in the vertical direction and fixedly connected to the inner wall of the crossbars, thereby being divided to form multiple energy storage areas.

[0007] Preferably, each energy storage module is placed on each pair of support rods, with the support rods located in the middle of the side wall of the crossbar, so that the upper and lower sides of the support rods and the side wall of the crossbar form a pair of steps; the base frame is fixedly connected to the area between adjacent support rods with a baffle plate; a pair of fixing rods are fixedly connected to the outside of the multiple crossbars corresponding to each support rod, and a sliding groove is provided between each pair of fixing rods.

[0008] Preferably, each limiting device includes a movable plate, a pair of outer movable rods, a pair of inner movable rods, and a limiting plate; the pair of outer movable rods are slidably connected in the corresponding sliding groove, and the pair of inner movable rods are disposed on the side walls on opposite sides of the pair of bearing rods; the movable plate and the limiting plate are fixedly connected to the two ends of the pair of inner movable rods respectively; the movable plate extends to both sides and is fixedly connected to one end of the pair of outer movable rods, and the length of the outer movable rod is not less than that of the sliding groove.

[0009] Preferably, the movable plate is also provided with a pair of first threaded grooves.

[0010] Preferably, the moving plate and the limiting plate are located on both sides of the width direction of each corresponding energy storage module; a pair of U-shaped limiting plates are also provided on the upper side of the energy storage module, and the U-shaped limiting plates are set on both sides of the top of the length direction of each corresponding energy storage module to embed the energy storage module into the middle of the U-shaped limiting plate; the U-shaped limiting plate is also provided with multiple moving slots corresponding to the energy storage module.

[0011] Preferably, the connecting device includes multiple pairs of U-shaped connecting blocks, multiple connecting components, and a sliding frame; each pair of connecting blocks is slidably connected to a movable plate, and a pair of laterally protruding portions of the connecting blocks are provided with second threaded grooves; the sliding frame is slidably connected to the upper side of the top base frame, a pair of connecting blocks are provided between adjacent connecting components, and the sliding frame is threadedly connected to the topmost connecting component; the remaining connecting components can be selectively used to be threadedly connected to the second threaded groove or to the first threaded groove.

[0012] Preferably, the sliding frame has a U-shaped cross-section and an opening at the end near the limiting plate, allowing the sliding frame to move away from the limiting plate along the base frame.

[0013] Preferably, the connecting assembly includes a pair of first threaded rods, a pair of connecting rods, and a pair of second threaded rods. The upper end of the connecting rod is fixedly connected to the first threaded rod, and the lower end has a threaded cavity that is threadedly connected to the second threaded rod. The topmost first threaded rod extends upward and is threadedly connected to the sliding frame, while the remaining first threaded rods are used for threaded connection to the connecting block. The second threaded rods are partially threaded into the threaded cavity.

[0014] Preferably, a positioning nut is fixedly connected to the outer wall of the second threaded rod. The height of the second threaded rod below the positioning nut is equal to the sum of the heights of the first and second threaded grooves, and the height above the positioning nut is greater than or equal to the height of the threaded cavity. This ensures that the height of the remaining unthreaded threaded cavities is equal to the sum of the heights of the first and second threaded grooves. The second threaded rod can be selectively threaded to the corresponding first or second threaded groove by rotation.

[0015] Compared with the prior art, the beneficial effects of the present invention are: Improved module replacement efficiency: The connecting components of the connector support selective threaded connections, allowing only the faulty module to be pulled out, avoiding complete disassembly and reducing workload.

[0016] The drawer-type frame sliding structure, consisting of a limiting device, a sliding frame, and a connecting device, allows the energy storage module to move along the energy storage frame following the limiting device. When the limiting device moves to the point where the energy storage module to be replaced is pulled out of the energy storage area, the energy storage module can slide out directly from both sides without disassembling other modules, which is simple, convenient, and efficient.

[0017] Structural stability is guaranteed: The sliding frame, connecting components, connecting blocks, and external moving rod support rod form a frame structure design. The sliding frame is slidably connected to the top base frame, and the external moving rod is slidably connected to the sliding groove to provide rigid support for the sliding frame and the external moving rod. This ensures stable support for the energy storage module when the limiting device is moved out (including moving the entire energy storage module out), and ensures the safety of the staff when replacing the module.

[0018] The ease of operation is enhanced. The sliding frame is driven by a drive device, which indirectly drives the limit device to move, thereby replacing manual operation, greatly reducing the difficulty of operation and improving the efficiency of module replacement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection between the energy storage frame and the energy storage module of the present invention; Figure 3 This is a schematic diagram of the energy storage framework structure of the present invention; Figure 4 This is a schematic diagram of the structure of the limiting device part of the present invention pulling out the energy storage frame; Figure 5 This is an exploded view of the limiting device and energy storage frame structure of the present invention; Figure 6 This is a schematic diagram of the energy storage module of the present invention located at the limiting device; Figure 7 This is a schematic diagram of the connection between the limiting device and the energy storage module of the present invention; Figure 8This is a schematic diagram of the connection between the driving device and the sliding frame of the present invention; Figure 9 This is a disassembled structural diagram of the connecting device of the present invention and a schematic diagram of the positional relationship between the connecting device and the moving plate; Figure 10 This is a structural disassembly diagram of the connecting component of the present invention; Figure 11 This is a cross-sectional view of the connection between the connecting component, the movable plate, and the connecting block of the present invention. Figure 12 This is a cross-sectional view of the connection between the drive device and the base frame of the present invention; Figure 13 This is a cross-sectional view of the connection between the support shaft and the Z-shaped rod and the rotating shaft and the base frame of the present invention. Figure 14 This is a cross-sectional view of the connection between the L-shaped rod and the rotating shaft in this invention. Figure 15 This is a side view of the connection between the positioning block and the drive rod of the present invention.

[0020] In the diagram: 1. Shell, 2. Energy storage frame, 21. Base frame, 211. Baffle plate, 22. Support rod, 23. Crossbar, 24. Bearing rod, 241. Step, 25. Fixing rod, 3. Energy storage module, 4. Limiting device, 41. Moving plate, 411. First threaded groove, 42. Outer moving rod, 43. Inner moving rod, 44. Limiting plate, 45. U-shaped limiting plate, 5. Connecting device, 51. Connecting block, 511. Second threaded groove, 52. Connecting assembly, 521. First threaded rod, 522. Connecting rod, 5221. Threaded cavity, 523. Second threaded rod, 524. Stabilizing plate, 53. Sliding frame, 54. Positioning nut, 6. Driving device, 61. Driving rod, 611. Positioning block, 62. Linking rod, 63. Rotating shaft, 64. Motor, 65. Support assembly, 651. Support shaft, 652. Z-shaped rod, 653. L-shaped rod. Detailed Implementation

[0021] Example 1 Please see Figures 1-11 The present invention provides a technical solution: such as Figures 1-3 As shown, a drawer-type, easily replaceable battery energy storage module for heavy-duty trucks includes a housing 1, an energy storage frame 2, multiple energy storage modules 3, multiple limiting devices 4, and a connecting device 5 disposed within the housing 1. The energy storage frame 2 has multiple vertically arranged energy storage zones, and the multiple energy storage modules 3 are sequentially arranged within their respective energy storage zones. Each limiting device 4 is disposed outside each corresponding energy storage module 3 and is slidably connected to the energy storage frame 2 to drive each energy storage module 3 to move along the length of the energy storage frame 2. The connecting device 5 is disposed outside the energy storage frame 2 and can selectively connect threadedly to the limiting device 4 disposed outside the energy storage module 3 to be replaced, thereby driving the energy storage module 3 to be replaced to move out of or into the energy storage zone.

[0022] The energy storage frame 2 includes a pair of base frames 21, two sets of support rods 22, multiple crossbars 23, and multiple pairs of load-bearing rods 24. The base frames 21 are rectangular frames. The support rods 22 are symmetrically arranged longitudinally. Several support rods 22 and several crossbars 23 are vertically staggered and fixedly arranged between the pair of base frames 21. Multiple pairs of load-bearing rods 24 are equidistantly arranged vertically and fixedly connected to the inner wall of the crossbars 23, thereby dividing the space into multiple energy storage zones. Each energy storage module 3 is placed on each pair of load-bearing rods 24. The load-bearing rods 24 are located in the middle of the side wall of the crossbars 23, so that the upper and lower sides of the load-bearing rods 24 and the side wall of the crossbars 23 form a pair of steps 241. The vertical direction of the steps 241 is used to restrict the movement of individual energy storage modules 3 in the width direction of the base frame 21 to ensure the stability of the energy storage modules 3. A baffle plate 211 is fixedly connected to the area between adjacent support rods 22 of the base frame 21 to restrict the movement of energy storage modules 3 located at the top and bottom. A pair of fixing rods 25 are fixedly connected to the outside of the multiple crossbars 23 corresponding to each bearing rod 24. A sliding groove is provided between each pair of fixing rods 25, and the sliding groove is used to slide with the limiting device 4.

[0023] In this embodiment, each set of support rods 22 includes four support rods 22, and four crossbars 23 are arranged between adjacent support rods 22; the number of support rods 22 and crossbars 23 can be selectively increased or decreased according to the actual load-bearing situation.

[0024] like Figures 4-8 As shown, each limiting device 4 includes a movable plate 41, a pair of outer movable rods 42, a pair of inner movable rods 43, and a limiting plate 44. The pair of outer movable rods 42 are slidably connected to corresponding sliding grooves. The pair of inner movable rods 43 are disposed on the sidewalls opposite to the pair of bearing rods 24. Sliding rods extend from the middle of the sidewalls corresponding to the bearing rods 24 and the inner movable rods 43 to match the grooves (not shown) on the side of the inner movable rods 43, allowing the bearing rods 24 and the inner movable rods 43 to be slidably connected, with their upper and lower sides flush. The movable plate 41 and the limiting plate 44 are fixedly connected to both ends of the pair of inner movable rods 43, respectively. The movable plate 41 extends to both sides and is fixedly connected to one end of a pair of outer movable rods 42. The length of the outer movable rods 42 is greater than the length of the sliding groove, causing the other end of the outer movable rods 42 to extend out of the sliding groove. A pair of first threaded grooves 411 are also provided on the movable plate 41. The movable plate 41 and the limiting plate 44 are located on both sides of the width direction of each corresponding energy storage module 3. The movable plate 41 moves to move the energy storage module 3 located between the movable plate 41 and the limiting plate 44 out of or into the energy storage area. It also prevents the individual energy storage module 3 between the movable plate 41 and the limiting plate 44 from moving along the length direction of the base frame 21, ensuring stability when moving out of or into the energy storage area.

[0025] A pair of U-shaped limiting plates 45 are also provided on the upper side of the energy storage module 3. The U-shaped limiting plates 45 are set on both sides of the top of each energy storage module 3 in the length direction to embed the energy storage module 3 into the middle of the U-shaped limiting plates 45, which is used to further restrict the movement of the energy storage module 3 and ensure the stability of the energy storage module 3. The U-shaped limiting plates 45 are also provided with multiple corresponding moving slots 451 for the energy storage module 3, so as to facilitate the removal of the energy storage module 3 and the replacement of a new energy storage module 3. The upper side of the U-shaped limiting plates 45 is attached to the lower side of the bearing rod 24 or the lower side of the top base frame 21.

[0026] like Figures 8-11 As shown, the connecting device 5 includes multiple pairs of connecting blocks 51, multiple connecting components 52, and a sliding frame 53. The connecting blocks 51 have a U-shaped cross-section, and each pair of connecting blocks 51 is slidably connected to a moving plate 41. A pair of laterally protruding portions of the connecting blocks 51 are provided with second threaded grooves 511. The sliding frame 53 is slidably connected to the upper side of the top base frame 21. The sliding frame 53 has a U-shaped cross-section, and the end near the limiting plate 44 is open, allowing the sliding frame 53 to move along the base frame 21 in a direction away from the limiting plate 44. A pair of connecting blocks 51 are provided between adjacent connecting components 52, and the sliding frame 53 is threadedly connected to the topmost connecting component 52. The remaining connecting components 52 can be selectively threadedly connected to the second threaded groove 511 to extend their length, or simultaneously threadedly connected to the first threaded groove 411 and the second threaded groove 511, so that the sliding frame 53 can slide to drive the connecting components 52 and the corresponding moving plate 41 to move.

[0027] The connecting assembly 52 includes a pair of first threaded rods 521, a pair of connecting rods 522, and a pair of second threaded rods 523. The upper end of the connecting rod 522 is fixedly connected to the first threaded rod 521, and the lower end has a threaded cavity 5221. The threaded cavity 5221 is threadedly connected to the second threaded rod 523. The topmost first threaded rod 521 extends upward and is threadedly connected to the sliding frame 53. The remaining first threaded rods 521 are used for threaded connection to the connecting block 51. A positioning nut 54 is fixedly connected to the outer wall of the second threaded rod 523. The height of the second threaded rod 523 below the positioning nut 54 is equal to the sum of the heights of the first threaded groove 411 and the second threaded groove 511, and the height above is greater than or equal to the height of the threaded cavity 5221. Part of the second threaded rod 523 is threadedly connected to the threaded cavity 5221, such that the height of the remaining unthreaded threaded cavity 5221 is equal to the sum of the heights of the first threaded groove 411 and the second threaded groove 511 (the surface of the second threaded rod 523 not threadedly connected to the threaded cavity 5221 can be painted with color for distinction). The second threaded rod 523 can be rotated to selectively connect to the first threaded groove 411 or the second threaded groove 511, or not connect to either.

[0028] Working principle: When it is necessary to replace the energy storage module 3, the operator first disassembles the housing 1 on the same side as the connecting device 5, connects the moving plate 41 of the corresponding set of energy storage modules 3 to be replaced through the connecting device 5, and then pulls out the set of energy storage modules 3 for replacement.

[0029] Specifically, in this embodiment, the multiple energy storage modules 3 are defined from top to bottom as the first energy storage module 3, the second energy storage module 3, the third energy storage module 3, the fourth energy storage module 3, and the fifth energy storage module 3; the multiple moving plates 41 are defined from top to bottom as the first layer moving plate 41, the second layer moving plate 41, the third layer moving plate 41, and the fourth layer moving plate 41; and the multiple pairs of connecting blocks 51 are defined as the first layer connecting block 51, the second layer connecting block 51, the third layer connecting block 51, and the fourth layer connecting block 51. Taking the replacement of the third energy storage module 3 as an example...

[0030] Step 1: The operator connects the pair of second threaded rods 523 corresponding to the first layer energy storage module 3 to the upper part of the first layer connecting block 51, but not to the first layer moving plate 41; the operator connects the pair of first threaded rods 521 corresponding to the second layer energy storage module 3 to the lower part of the first layer connecting block 51, and the operator connects the pair of second threaded rods 523 corresponding to the second layer energy storage module 3 to the upper part of the second layer connecting block 51, but not to the second layer moving plate 41; the operator connects the pair of first threaded rods 521 corresponding to the third layer energy storage module 3 to the lower part of the second layer connecting block 51.

[0031] Step 2: The pair of second threaded rods 523 corresponding to the third-layer energy storage module 3 are first rotated into the threaded cavity 5221, and are not connected to the third-layer moving plate 41 and the third-layer connecting block 51. Then, the pair of second threaded rods 523 corresponding to the fourth-layer energy storage module 3 are not connected to the fourth-layer moving plate 41 and the fourth-layer connecting block 51. After that, the operator slides the third-layer connecting block 51 out of the third-layer moving plate 41, and the first threaded rod 521 connected to the lower part of the third-layer connecting block 51 is moved out simultaneously.

[0032] Step 3: The operator then connects the pair of second threaded rods 523 of the corresponding third-layer energy storage module 3 to the third-layer moving plate 41 via thread.

[0033] Step 4: The operator pulls the second threaded rod 523 of the third and above moving plates 41 outward to pull the third moving plate 41 and the third set of energy storage modules 3 out of the energy storage area. During the pulling process, the sliding frame 53 and the corresponding outer moving rod 42 and inner moving rod 43 of the third moving plate move simultaneously. The frame structure formed by the third moving plate 41, the first threaded rod 521 of the third and above moving plates 41, the connecting block 51, the second threaded rod 523, the sliding frame 53, and the corresponding outer moving rod 42 of the third moving plate 41 ensures the stability of the third set of energy storage modules 3 during and after movement. After the third set of energy storage modules 3 is moved out, the energy storage module 3 to be replaced is taken out from the side and replaced with a new energy storage module 3. Then, the third set of energy storage modules 3 is pushed back into the energy storage area to complete the replacement of the energy storage modules 3.

[0034] Step 5: Disconnect the second threaded rod 523 of the corresponding third energy storage module 3 from the third moving plate 41, and place the third connecting block 51 back onto the third moving plate 41. The replacement of the remaining energy storage modules 3 is done in the same way as the replacement of the third energy storage module 3. Finally, reinstall the removed housing 1 and seal it.

[0035] Example 2 Based on Example 1, such as Figure 8 and Figures 12-15 As shown, in order to reduce the difficulty of pulling the movable plate 41 outward, a drive device 6 is also fixedly connected to the base frame 21 at the top, which is used to fix the sliding frame 53 to the sliding frame 53 and drive the sliding frame 53 to move by electric power.

[0036] Specifically, the drive device 6 includes a drive rod 61, multiple connecting rods 62, a rotating shaft 63, a motor 64, and a support assembly 65. The drive rod 61 is hollow inside and extends further towards the limiting plate 44. The rotating shaft 63 is located inside the drive rod 61 and is threadedly connected, extending out of the drive rod 61. The multiple connecting rods 62 are evenly distributed on both sides of the drive rod 61, and their two ends are fixedly connected to the outer wall of the drive rod 61 and the sliding frame 53, respectively. One end of the support assembly 65 is rotatably connected to the rotating shaft 63, and the other end is connected to the top base frame 21 to maintain the stability of the rotating shaft 63. The motor 64 is fixedly connected to the top base frame 21, and the motor 64 is engaged with the extended end of the rotating shaft 63 near the limiting plate 44 to drive the rotating shaft 63 to rotate, thereby forcing the drive rod 61 to move the sliding frame 53 away from the limiting plate 44.

[0037] The support assembly 65 includes a support shaft 651, a Z-shaped rod 652, and an L-shaped rod 653. The support shaft 651 is inserted into a rotating groove opened near the end of the rotating shaft 63 near the moving plate 41. One end of the Z-shaped rod 652 is fixedly connected to the support shaft 651, and the other end is fixedly connected to the top base frame 21 located inside the sliding frame 53. The lateral portion of the Z-shaped rod 652 is located on the upper side of the sliding frame 53 to ensure the normal movement of the sliding frame 53. The upper end of the L-shaped rod 653 is rotatably connected to the outer wall of the rotating shaft 63 near the end of the limiting plate 44, and the other end is fixedly connected to the outer side of the top base frame 21.

[0038] The lower side of the drive rod 61 is hollowed out, and the width of the hollowed-out part matches the width of the Z-shaped rod 652, so that the drive rod 61 can move smoothly; a positioning block 611 is fixedly connected to the hollowed-out part of the extension of the drive rod 61 to limit the movement distance of the drive rod 61.

[0039] Working principle: Taking the third energy storage module 3 as an example; after completing the first three steps of Example 1, start motor 64. Motor 64 drives rotating shaft 63 to rotate. Rotating shaft 63 drives drive rod 61, connecting rod 62, and sliding frame 53 to move away from limit plate 44 until the energy storage module 3 to be replaced is pulled out. Then, turn off motor 64. If the energy storage module 3 closest to limit plate 44 needs to be replaced, when drive rod 61 drives positioning block 611 to contact Z-shaped rod 652, motor 64 is turned off. At this time, all the third energy storage modules 3 are pulled out of the energy storage area. After the energy storage module 3 is replaced, start motor 64 again. Motor 64 rotates in the opposite direction, driving drive rod 61, connecting rod 62, and sliding frame 53 to move away from limit plate 44 until the third energy storage module 3 is pushed into the energy storage area. Finally, operate according to step 5 of Example 1.

[0040] Example 3 Based on Example 1, such as Figure 9 As shown, to ensure the stability of the connecting component 52, the connecting component 52 also includes multiple pairs of stabilizing plates 524 corresponding to multiple pairs of connecting rods 522. The two ends of each pair of stabilizing plates 524 are rotatably connected to the upper and lower ends of the corresponding pair of connecting rods 522, thereby improving the stability of the connection.

Claims

1. A drawer-type, easily replaceable battery energy storage module for heavy-duty trucks, characterized in that: The device includes a housing (1), an energy storage frame (2) disposed within the housing (1), multiple energy storage modules (3), multiple limiting devices (4), and a connecting device (5); the energy storage frame (2) has multiple vertically arranged energy storage areas inside, and multiple energy storage modules (3) are sequentially disposed in the corresponding energy storage areas; each limiting device (4) is disposed outside each corresponding energy storage module (3) and is slidably connected to the energy storage frame (2) to drive each energy storage module (3) to move along the length direction of the energy storage frame (2); the connecting device (5) is disposed outside the energy storage frame (2) and can selectively be threadedly connected to the limiting device (4) disposed outside the energy storage module (3) to be replaced, so as to drive the energy storage module (3) to be replaced to move out or into the energy storage area.

2. The drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 1, characterized in that: The energy storage frame (2) includes a pair of base frames (21), two sets of support rods (22) arranged symmetrically in the longitudinal direction, multiple crossbars (23) and multiple pairs of load-bearing rods (24); several longitudinal support rods (22) and several crossbars (23) are vertically staggered and fixedly arranged between a pair of base frames (21), and multiple pairs of load-bearing rods (24) are equidistantly arranged in the vertical direction and fixedly connected to the inner wall of the crossbars (23), thereby being separated to form multiple energy storage areas.

3. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 2, characterized in that: Each energy storage module (3) is placed on each pair of support rods (24). The support rods (24) are located in the middle of the side wall of the crossbar (23), so that the upper and lower sides of the support rods (24) and the side wall of the crossbar (23) form a pair of steps (241). The base frame (21) is fixedly connected to the baffle plate (211) in the area between the adjacent support rods (22). A pair of fixing rods (25) are fixedly connected to the outside of the multiple crossbars (23) corresponding to each support rod (24), and a sliding groove is provided between each pair of fixing rods (25).

4. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 3, characterized in that: Each limiting device (4) includes a moving plate (41), a pair of outer moving rods (42), a pair of inner moving rods (43), and a limiting plate (44); the pair of outer moving rods (42) are slidably connected in the corresponding sliding groove, and the pair of inner moving rods (43) are set on the side walls on opposite sides of a pair of bearing rods (24); the two ends of the pair of inner moving rods (43) are respectively fixedly connected to the moving plate (41) and the limiting plate (44); the moving plate (41) extends to both sides and is fixedly connected to one end of the pair of outer moving rods (42), and the length of the outer moving rods (42) is not less than that of the sliding groove.

5. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 4, characterized in that: The movable plate (41) is also provided with a pair of first threaded grooves (411).

6. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 4, characterized in that: The movable plate (41) and the limiting plate (44) are located on both sides of the width direction of each corresponding energy storage module (3); a pair of U-shaped limiting plates (45) are also provided on the upper side of the energy storage module (3). The U-shaped limiting plates (45) are set on both sides of the top of the length direction of each corresponding energy storage module (3) to embed the energy storage module (3) into the middle of the U-shaped limiting plate (45); the U-shaped limiting plate (45) is also provided with multiple movable slots (451) corresponding to the energy storage module (3).

7. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 5, characterized in that: The connecting device (5) includes multiple pairs of U-shaped connecting blocks (51), multiple connecting components (52), and a sliding frame (53); each pair of connecting blocks (51) is slidably connected to a moving plate (41), and a pair of laterally extended portions of the connecting blocks (51) are provided with second threaded grooves (511); the sliding frame (53) is slidably connected to the upper side of the top base frame (21), and a pair of connecting blocks (51) are provided between adjacent connecting components (52), and the sliding frame (53) is threadedly connected to the topmost connecting component (52); the remaining connecting components (52) can be selectively used to be threadedly connected to the second threaded groove (511) or to the first threaded groove (411).

8. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 7, characterized in that: The sliding frame (53) has a U-shaped cross section and an opening at the end near the limiting plate (44), allowing the sliding frame (53) to move away from the limiting plate (44) along the base frame (21).

9. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 7, characterized in that: The connecting assembly (52) includes a pair of first threaded rods (521), a pair of connecting rods (522), and a pair of second threaded rods (523). The upper end of the connecting rod (522) is fixedly connected to the first threaded rod (521), and the lower end is provided with a threaded cavity (5221) that is threadedly connected to the second threaded rod (523). The topmost first threaded rod (521) extends upward and is threadedly connected to the sliding frame (53), while the remaining first threaded rods (521) are used to be threadedly connected to the connecting block (51). The second threaded rod (523) is partially threadedly connected to the threaded cavity (5221).

10. A drawer-type, easily replaceable battery heavy-duty truck energy storage module according to claim 9, characterized in that: The outer wall of the second threaded rod (523) is fixedly connected to a positioning nut (54). The height of the second threaded rod (523) on the lower side of the positioning nut (54) is equal to the sum of the heights of the first threaded groove (411) and the second threaded groove (511), and the height on the upper side is greater than or equal to the height of the threaded cavity (5221). This makes the height of the remaining unthreaded threaded cavity (5221) equal to the sum of the heights of the first threaded groove (411) and the second threaded groove (511). The second threaded rod (523) can be rotated to selectively connect to the corresponding first threaded groove (411) or second threaded groove (511).

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