Assembling tool for battery pack

Abstract

The embodiment of the utility model provides a battery pack assembling tool, the battery pack assembling tool comprises a fixed platform and a lifting platform, the fixed platform is provided with a lifting port, the fixed platform is used for placing and connecting a first longitudinal beam, a second longitudinal beam and at least one cross beam, the lifting port is located in an assembly space surrounded by the first longitudinal beam, the second longitudinal beam and the at least one cross beam, the lifting platform can move between a lifting position and a falling position relative to the fixed platform, the lifting position is located above the fixed platform, the falling position is closer to the fixed platform than the lifting position, and the falling position is located below the lifting position. The lifting platform is used for alternately arranging the bottom plates, the borne battery cell groups and other cross beams at the falling position, and the lifting platform is used for moving the alternately arranged bottom plates, the borne battery cell groups and other cross beams into the assembly space at the falling position. The assembly tool of the battery pack provided by the embodiment of the utility model has higher assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery production, specifically to an assembly fixture for a battery pack. Background Technology

[0002] In related technologies, battery packs are assembled by gradually installing components on an assembly platform. During the assembly process, there are problems of mutual interference and collision between components, especially interference and collision with the battery pack frame, which leads to chaotic assembly and low efficiency of the battery pack. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose an assembly fixture for a battery pack.

[0005] The battery pack assembly tooling of this utility model embodiment assembles a battery pack including a frame assembly, a base plate and a battery cell assembly. The frame assembly includes a first longitudinal beam, a second longitudinal beam and a plurality of cross beams. The plurality of cross beams are spaced apart and connected between the first longitudinal beam and the second longitudinal beam. The base plate is provided between adjacent cross beams. The battery cell assembly is provided between at least some of the adjacent cross beams and the battery cell assembly is supported on the base plate.

[0006] The assembly fixture for the battery pack in this embodiment of the utility model includes:

[0007] A fixed platform is provided with a lifting port. The fixed platform is used to place and connect the first longitudinal beam, the second longitudinal beam and at least one of the cross beams, and the lifting port is located within the assembly space surrounded by the first longitudinal beam, the second longitudinal beam and at least one of the cross beams.

[0008] A lifting platform is movable relative to the fixed platform between a raised position and a lowered position. The raised position is located above the fixed platform, and the lowered position is closer to the fixed platform than the raised position. In the raised position, the lifting platform is used to alternately position the base plate and the battery cell assembly it carries with other beams. In the lowered position, the lifting platform is used to move the alternately positioned base plate and the battery cell assembly it carries with other beams into the assembly space.

[0009] The battery pack assembly fixture of this utility model embodiment has a lifting platform that assembles a first assembly part, which includes alternating base plates and battery cell packs, along with other crossbeams, in a lifting position. A fixed platform assembles a second assembly part, which includes a first longitudinal beam, a second longitudinal beam, and at least one crossbeam. Then, the lifting platform moves to a lowering position to move the first assembly part into the second assembly part and assemble the first and second assembly parts. This avoids interference and collisions during battery pack assembly and prevents the first assembly part from shifting or loosening during movement. Therefore, the battery pack assembly fixture of this utility model embodiment has high assembly efficiency.

[0010] In some embodiments, at the fall-off position, the lifting platform is located within the lifting opening and is flush with the fixed platform.

[0011] In some embodiments, the fixed platform includes a strip section, and the lifting ports are at least two spaced apart. The strip section is located between adjacent lifting ports and is used to support the crossbeam.

[0012] In some embodiments, the assembly fixture for the battery pack further includes a positioning beam for detachably connecting the crossbeams on the lifting platform located at least on both sides along an alternating arrangement direction.

[0013] In some embodiments, the positioning beam is used to detachably connect all the crossbeams on the lifting platform.

[0014] In some embodiments, the positioning beam includes a first positioning beam and a second positioning beam, wherein the first positioning beam is used to detachably connect the crossbeam of the lifting platform to one end of the first longitudinal beam, and the second positioning beam is used to detachably connect the crossbeam of the lifting platform to the other end of the second longitudinal beam.

[0015] In some embodiments, the first longitudinal beam, the second longitudinal beam, the first positioning beam, and the second positioning beam are each provided with threaded holes corresponding to the plurality of crossbeams. The threaded holes are used to provide threaded connectors to detachably connect the corresponding crossbeams. The plurality of threaded holes of the first longitudinal beam are positioned in a manner corresponding to the plurality of threaded holes of the first positioning beam, and the plurality of threaded holes of the second longitudinal beam are positioned in a manner corresponding to the plurality of threaded holes of the second positioning beam.

[0016] In some embodiments, the assembly fixture for the battery pack further includes a clamping member for detachably clamping both the base plate and the carried battery cell assembly to the crossbeam in alternating directions.

[0017] In some embodiments, the clamping member includes a guide rod, a fixed clamping head, and a movable clamping head. The guide rod extends in an alternating direction, one end of the guide rod is provided with the fixed clamping head, and the other end of the guide rod is provided with the movable clamping head, and the movable clamping head is movable along the extension direction of the guide rod.

[0018] In some embodiments, the assembly fixture for the battery pack further includes a base, a bracket, and a lifter. The bracket and the lifter are both disposed on the base, the fixed platform is disposed on the bracket, and the lifting platform is disposed on the lifter to move between the raised position and the lowered position under the drive of the lifter. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly fixture for the battery pack according to an embodiment of the present invention. Figure 1 The lifting platform is located in the lowered position;

[0020] Figure 2 This is a schematic diagram of the assembly fixture for the battery pack according to an embodiment of the present invention. Figure 2 The lifting platform is located in the raised position;

[0021] Figure 3 This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 1 ;

[0022] Figure 4 This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 2 ;

[0023] Figure 5 This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 3 ;

[0024] Figure 6 This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 4 ;

[0025] Figure 7 This is a partial cross-sectional view of the battery pack in an embodiment of this utility model;

[0026] Figure 8 This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 5 ;

[0027] Figure 9 This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 6 ;

[0028] Figure 10This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 7 .

[0029] Figure 11 This is a schematic diagram illustrating the usage process of the battery pack assembly fixture according to an embodiment of this utility model. Figure 8 .

[0030] Figure label:

[0031] 10. Battery pack; 1. Frame assembly; 11. First longitudinal beam; 12. Second longitudinal beam; 13. Crossbeam; 131. Crossbeam mounting bracket; 132. Heat exchange crossbeam; 133. Support crossbeam; 2. Base plate; 3. Cell assembly; 4. Pressure strip; 100. First assembly section; 200. Second assembly section;

[0032] 20. Assembly fixture; 21. Fixed platform; 211. Lifting port; 212. Strip section; 22. Lifting platform; 23. Positioning beam; 231. First positioning beam; 232. Second positioning beam; 24. Clamping component; 241. Guide rod; 242. Fixed clamping head; 243. Movable clamping head; 25. Base; 26. Bracket; 27. Lifter. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] The following is for reference. Figures 1-11 The assembly fixture 20 of the battery pack according to an embodiment of the present invention is described.

[0035] It should be noted that the battery pack 10 assembled by the battery pack assembly fixture 20 in this embodiment of the present invention includes a frame assembly 1, a base plate 2 and a cell assembly 3. The frame assembly 1 includes a first longitudinal beam 11, a second longitudinal beam 12 and a plurality of cross beams 13. The plurality of cross beams 13 are arranged at intervals and connected between the first longitudinal beam 11 and the second longitudinal beam 12. The base plate 2 is provided between adjacent cross beams 13. The cell assembly 3 is provided between at least some of the adjacent cross beams 13 and is supported on the base plate 2.

[0036] For example, such as Figures 3-11As shown, the first longitudinal beam 11 and the second longitudinal beam 12 both extend in the left-right direction and are arranged at intervals in the front-back direction. A crossbeam 13 extends in the front-back direction and connects between the first longitudinal beam 11 and the second longitudinal beam 12. Multiple crossbeams 13 are arranged at intervals in the left-right direction. A corresponding base plate 2 is provided between the bottoms of each adjacent crossbeam 13. The base plate 2 is preferably a strip plate extending in the front-back direction. The base plate 2 is detachable from the bottoms of the crossbeams 13, the bottoms of the first longitudinal beam 11, and the bottoms of the second longitudinal beam 12. Preferably, except between the leftmost and rightmost adjacent crossbeams 13, a battery cell assembly 3 is provided between each of the remaining adjacent crossbeams 13. The battery cell assembly 3 is supported on the corresponding base plate 2. It is understood that in some other embodiments, a corresponding battery cell assembly 3 can be provided between all adjacent crossbeams 13.

[0037] like Figures 1-11 As shown, the battery pack assembly fixture 20 of this embodiment includes a fixed platform 21 and a lifting platform 22.

[0038] The fixed platform 21 is provided with a lifting port 211. The fixed platform 21 is used to place and connect the first longitudinal beam 11, the second longitudinal beam 12 and at least one cross beam 13, and the lifting port 211 is located in the assembly space surrounded by the first longitudinal beam 11, the second longitudinal beam 12 and at least one cross beam 13.

[0039] like Figures 1-4 As shown, the fixed platform 21 is provided with a lifting port 211, preferably rectangular. The fixed platform 21 is used to place and connect the first longitudinal beam 11, the second longitudinal beam 12 and at least one crossbeam 13. The lifting port 211 is located in the space surrounded by the first longitudinal beam 11, the second longitudinal beam 12 and the two crossbeams 13.

[0040] The lifting platform 22 is movable relative to the fixed platform 21 between a raised position and a lowered position. The raised position is above the fixed platform 21, and the lowered position is closer to the fixed platform 21 than the raised position. In the raised position, the lifting platform 22 is used to alternately set the base plate 2 and the battery cell assembly 3 with other crossbeams 13. In the lowered position, the lifting platform 22 is used to move the alternately set base plate 2 and the battery cell assembly 3 with other crossbeams 13 into the assembly space.

[0041] like Figures 1-4 , Figures 8-11 As shown, the lifting platform 22 can move vertically between the raised position and the lowered position relative to the fixed platform 21, with the raised position located above the fixed platform 21 (e.g., Figure 2 The lowering position is closer to the fixed platform 21 than the lifting position (as described above). Figure 1As shown in the figure, in other words, the drop position is located between the lifting position and the fixed platform 21, or inside the fixed platform 21, or below the fixed platform 21, and the distance between the drop position and the fixed platform 21 is less than the distance between the lifting position and the fixed platform 21.

[0042] In the lifting position, the lifting platform 22 is used to alternately arrange the base plate 2 and the battery cell assembly 3 along the left and right directions with other crossbeams 13 except those provided on the fixed platform 21. In the lowering position, the lifting platform 22 is used to move the alternately arranged base plate 2 and the battery cell assembly 3 along with other crossbeams 13 into the assembly space, thereby connecting the other crossbeams 13 between the first longitudinal beam 11 and the second longitudinal beam 12.

[0043] When the battery pack assembly fixture 20 is used, the first assembly part 100 and the second assembly part 200 of the battery pack 10 are first assembled by the fixed platform 21 and the lifting platform 22 respectively. The first assembly part 100 and the second assembly part 200 can be assembled simultaneously or sequentially.

[0044] The first assembly section 100 is assembled on a lifting platform 22 located in a raised position. The first assembly section 100 uses at least one crossbeam 13 of the battery pack 10 as a reference, and alternately connects the base plate 2 and the supporting cell assembly 3 to the crossbeam 13 in sequence. Specifically, the base plate 2 is first connected to the bottom of the preceding crossbeam 13 (e.g., ...). Figure 5 As shown), then place the battery cell assembly 3 (as shown) on the base plate 2. Figure 6 (As shown), then connect the bottom plate 2 and the battery cell group 3 to the next crossbeam 13 on the side away from the previous crossbeam 13, and repeat the placement of the bottom plate 2, battery cell group 3 and crossbeam 13. The end of the placement can be the bottom plate 2 and the battery cell group 3 it carries, or it can be the crossbeam 13.

[0045] The second assembly section 200 is assembled on the fixed platform 21. The second assembly section 200 is formed by connecting at least one crossbeam 13 other than the first assembly section 100 of the battery pack 10 with the first longitudinal beam 11 and the second longitudinal beam 12, and surrounds to form an assembly space.

[0046] Then the lifting platform 22 moves from the raised position to the lowered position, causing the first assembly part 100 to move into the assembly space of the second assembly part 200.

[0047] The first assembly section 100 begins with a reference beam 13 along the alternating arrangement direction. After the first assembly section 100 moves into the second assembly section 200, the reference beam 13 and the beam 13 of the second assembly section 200 are arranged at intervals, and the base plate 2 is connected between the two beams 13.

[0048] If the end of the first assembly section 100 along the alternating arrangement direction is a base plate 2 and a battery cell assembly 3, after the first assembly section 100 moves into the second assembly section 200, the end base plate 2 is connected to the crossbeam 13 of the second assembly section 200. If the end of the first assembly section 100 along the alternating arrangement direction is a crossbeam 13, after the first assembly section 100 moves into the second assembly section 200, the end crossbeam 13 and the crossbeam 13 of the second assembly section 200 are arranged at intervals, and the base plate 2 is connected between the two crossbeams 13.

[0049] Then all the crossbeams 13 in the first assembly section 100 are connected between the first longitudinal beam 11 and the second longitudinal beam 12, preferably by bolts.

[0050] The battery pack assembly fixture 20 of this embodiment has a lifting platform that assembles a first assembly part, which includes alternating base plates and battery cell packs with other crossbeams, in a lifting position. A fixed platform assembles a second assembly part, which includes a first longitudinal beam, a second longitudinal beam, and at least one crossbeam. Then, the lifting platform moves to a lowering position to move the first assembly part into the second assembly part and assemble the first and second assembly parts. This avoids interference and collisions during battery pack assembly and prevents the first assembly part from shifting or loosening during movement. Therefore, the battery pack assembly fixture 20 of this embodiment has high assembly efficiency.

[0051] It should be noted that when at least one of foam layer, insulating sheet and plastic plate is required on the outer wall of the cell assembly 3, they must be placed in sequence during the assembly process of the first assembly part 100.

[0052] In some embodiments, the crossbeam 13 serving as a reference in the first assembly section 100 is detachably connected to the lifting platform 22. Preferably, the battery pack assembly fixture 20 further includes connecting bolts or clamps for detachably connecting the lifting platform 22 to the crossbeam 13 serving as a reference.

[0053] It is understood that in other embodiments, the lifting platform may be snapped together with a crossbeam serving as a reference.

[0054] In some embodiments, the base plate 2 is snap-fitted to the bottom of the crossbeam 13.

[0055] like Figure 7As shown, the bottom of the crossbeam 13 has a crossbeam retainer 131, which extends toward another crossbeam 13 adjacent to it. In other words, the bottom of the crossbeam 13 can have crossbeam retainers 131 on both the left and right sides, or only on one side. The left and right sidewalls of the base plate 2 are provided with base plate grooves, which are also formed on the bottom surface of the base plate 2. The crossbeam retainers 131 fit into the corresponding base plate grooves.

[0056] During the assembly of the first assembly part 100, the base plate 2 is placed on one side of the front crossbeam 13, and the crossbeam 13 is placed on the front base plate 2, so that the base plate 2 and the crossbeam 13 are detachably snapped together, so as to facilitate the independent disassembly of the base plate 2 of the battery pack and the battery cell group 3 it carries.

[0057] Assemble the first assembly part 100 on the lifting platform 22 to facilitate the alternating connection of the base plate 2 and the crossbeam 13, and ensure the stable connection between the base plate 2 and the crossbeam 13. Move the first assembly part 100 into the assembly space of the second assembly part 200 by lowering the lifting platform 22, which can prevent the alternating base plate 2 and crossbeam 13 from being misaligned or loose.

[0058] In some embodiments, in the lowered position, the lifting platform 22 is located inside the lifting port 211 and is flush with the fixed platform 21.

[0059] like Figure 1 As shown, the lifting platform 22 is fitted inside the lifting port 211. The top surface of the lifting platform 22 is flush with the top surface of the fixed platform 21 so as to align all the crossbeams 13 in the first assembly part 100 with the first longitudinal beam 11 and the second longitudinal beam 12, thereby facilitating the connection of all the crossbeams 13 in the first assembly part 100 between the first longitudinal beam 11 and the second longitudinal beam 12.

[0060] In some embodiments, the fixed platform 21 includes a strip 212, and at least two lifting ports 211 are arranged at intervals. The strip 212 is located between adjacent lifting ports 211 and is used to support the crossbeam 13.

[0061] like Figures 1-4 , Figures 8-11 As shown, the fixed platform 21 preferably, but not limited to, has two lifting ports 211 arranged at intervals along the left and right directions, and each lifting port 211 is provided with a corresponding lifting platform 22.

[0062] When the battery pack assembly fixture 20 is used, each of the two lifting platforms 22 is provided with a crossbeam 13 as a reference, and on each lifting platform 22, the base plate 2 and the battery cell assembly 3 are alternately set with the crossbeam 13 as a reference.

[0063] Between the two lifting ports 211 is a strip-shaped portion 212 of the fixed platform 21, which is a strip extending in the front-to-back direction to support the crossbeam 13.

[0064] When the battery pack assembly fixture 20 is used, the assembly of the second assembly part 200 on the fixed platform 21 includes three crossbeams 13. One crossbeam 13 is connected between the left ends of the first longitudinal beam 11 and the second longitudinal beam 12, another crossbeam 13 is connected between the right ends of the first longitudinal beam 11 and the second longitudinal beam 12, and the remaining crossbeam 13 is connected between the middle of the first longitudinal beam 11 and the middle of the second longitudinal beam 12 and is located on the strip 212.

[0065] In the first assembly section 100, the ends of the two crossbeams 13 arranged with reference to each other are base plates 2 and battery cell groups 3, and the base plates 2 and battery cell groups 3 at the two ends are arranged opposite each other in the left-right direction. After the first assembly section 100 moves into the assembly space of the second assembly section 200, the crossbeam 13 located in the strip section 212 in the second assembly section 200 is connected between the base plates 2 at the two ends.

[0066] It is understood that in other embodiments, the lifting platform and lifting port may be provided as one, or three or more, and the crossbeam of the second assembly part may be only two connected to the left end and the right end, or only one.

[0067] In some embodiments, the crossbeam 13 includes a heat exchange crossbeam 132 and a support crossbeam 133, and the heat exchange crossbeam 132 has a heat exchange channel inside for the flow of heat exchange medium.

[0068] In the first assembly section 100, the reference beam 13 adopts the support beam 133. With the support beam 133 as the reference, the base plate 2 and the battery cell assembly 3 are alternately arranged with the heat exchange beam 132. In other words, in the first assembly section 100, except for the reference beam 13 which adopts the support beam 133, all other beams 13 connected in sequence adopt the heat exchange beam 132.

[0069] Using the support beam 133 as a reference ensures the structural stability of the first assembly part 100 during the assembly process, as well as the compactness of the first assembly part 100.

[0070] In the second assembly section 200, the crossbeams 13 connecting the first longitudinal beam 11 and the second longitudinal beam 12 are all support crossbeams 133. This ensures the structural stability of the second assembly section 200 and facilitates the connection between the first assembly section 100 and the second assembly section 200.

[0071] Meanwhile, the supporting beam 133 ensures the structural strength of the battery pack 10, and the heat exchange beam 132 effectively dissipates heat and cools the cell group 3 during the operation of the battery pack 10.

[0072] In some embodiments, the battery pack assembly fixture 20 further includes a positioning beam 23 for detachably connecting a crossbeam 13 located at least on both sides along an alternating arrangement direction on the lifting platform 22.

[0073] like Figure 1 , Figure 2 , Figures 4-6 as well as Figure 8 As shown, the positioning beam 23 extends in the left-right direction. During the assembly of the first assembly part 100, the positioning beam 23 is detachably connected to the crossbeams 13 at least at the left and right ends of the first assembly part 100, preferably but not limited to being connected by bolts.

[0074] Preferably, the positioning beam 23 is detachably connected to the support beams 133 at least at the left and right ends of the first assembly part 100.

[0075] The positioning beam 23 defines the positions of the crossbeam 13, the base plate 2, and the supported battery cell assembly 3 in the first assembly part 100, so that after the first assembly part 100 is moved into the assembly space of the second assembly part 200, the crossbeam 13 in the first assembly part 100 is in the designated installation position in the second assembly part 200, so that the crossbeam 13 of the first assembly part 100 can be quickly connected between the first longitudinal beam 11 and the second longitudinal beam 12 without the need for repositioning.

[0076] In some embodiments, the positioning beam 23 is used to detachably connect all the crossbeams 13 on the lifting platform 22.

[0077] like Figure 1 , Figure 2 , Figures 4-6 as well as Figure 8 As shown, during the assembly of the first assembly part 100, all the crossbeams 13 of the first assembly part 100 are detachably connected to the positioning beam 23.

[0078] Specifically, after the reference support beam 133 is installed on the lifting platform 22 located in the lifting position, the positioning beam 23 is first detachably connected to the reference support beam 133. Then, the base plate 2 and the battery cell assembly 3 are alternately installed on the reference support beam 133 and the heat exchange beam 132 in sequence. Each time a heat exchange beam 132 is installed, the heat exchange beam 132 is detachably connected to the positioning beam 23.

[0079] During the use of the battery pack assembly fixture 20, the second assembly part 200 is assembled before the first assembly part 100. Then, the lifting platform 22 is placed in the lowered position, and the reference support beam 133 of the first assembly part 100 is placed in the installation space of the second assembly part 200. After the installation position of the reference support beam 133 relative to the second assembly part 200 in the horizontal plane is determined, the reference support beam 133 is connected to the lifting platform 22. The lifting platform 22 drives the reference support beam 133 to move to the lifting position, and then the assembly of the first assembly part 100 is carried out and completed. During the assembly of the first assembly part 100, the position of the reference support beam 133 relative to the second assembly part 200 in the horizontal plane remains constant.

[0080] After the first assembly section 100 is assembled, the lifting platform 22 drives the first assembly section 100 back to the lowered position and moves the first assembly section 100 into the installation space of the second assembly section 200. Since the position of the reference support beam 133 has not changed, the relative position of the heat exchange beam 132 in the first assembly section 100 and the reference support beam 133 is defined by the positioning beam 23. Therefore, the beams 13 in the first assembly section 100 are all in the designated installation position in the second assembly section 200, so that the beams 13 in the first assembly section 100 can be directly connected between the first longitudinal beam 11 and the second longitudinal beam 12 without adjusting the position again, thus achieving high assembly efficiency.

[0081] In some embodiments, the positioning beam 23 includes a first positioning beam 231 and a second positioning beam 232. The first positioning beam 231 is used to detachably connect the crossbeam 13 of the lifting platform 22 to one end of the first longitudinal beam 11, and the second positioning beam 232 is used to detachably connect the crossbeam 13 of the lifting platform 22 to the other end of the second longitudinal beam 12.

[0082] like Figures 1-6 and Figure 8 As shown, the positioning beam 23 includes a first positioning beam 231 and a second positioning beam 232. Both the first positioning beam 231 and the second positioning beam 232 extend in the left-right direction and are arranged at intervals in the front-back direction. The first positioning beam 231 is used to connect the front end of the crossbeam 13 in the first assembly part 100, and the second positioning beam 232 is used to connect the rear end of the crossbeam 13 in the first assembly part 100, thereby ensuring the stability of the position of the crossbeam 13 in the first assembly part 100.

[0083] In some embodiments, the first longitudinal beam 11, the second longitudinal beam 12, the first positioning beam 231, and the second positioning beam 232 are each provided with threaded holes corresponding to the plurality of cross beams 13. The threaded holes are used to provide threaded connectors to detachably connect the corresponding cross beams 13. The plurality of threaded holes of the first longitudinal beam 11 are positioned corresponding to the plurality of threaded holes of the first positioning beam 231, and the plurality of threaded holes of the second longitudinal beam 12 are positioned corresponding to the plurality of threaded holes of the second positioning beam 232.

[0084] like Figures 1-6 The first longitudinal beam 11, the second longitudinal beam 12, the first positioning beam 231, and the second positioning beam 232 are all provided with threaded holes corresponding to the plurality of crossbeams 13. The number of threaded holes corresponding to the end of the same crossbeam 13 can be one, two, three, or more. The threaded holes are used to install threaded fasteners to detachably connect the corresponding crossbeams 13. The threaded fasteners are preferably, but not limited to, bolts.

[0085] The multiple threaded holes of the first longitudinal beam 11 are correspondingly positioned to the multiple threaded holes of the first positioning beam 231. In other words, the threaded holes for bolts on the first positioning beam 231 are in the same position as the threaded holes for bolts on the first longitudinal beam 11. The multiple threaded holes of the second longitudinal beam 12 are correspondingly positioned to the multiple threaded holes of the second positioning beam 232. In other words, the threaded holes for bolts on the second positioning beam 232 are in the same position as the threaded holes for bolts on the second longitudinal beam 12.

[0086] Preferably, the shape and dimensions of the first positioning beam 231 are the same as those of the first longitudinal beam 11, and the shape and dimensions of the second positioning beam 232 are the same as those of the second longitudinal beam 12.

[0087] After the first assembly part 100 is moved into the installation space of the second assembly part 200, the crossbeam 13 in the first assembly part 100 is opposite to the threaded holes on the first longitudinal beam 11 and the second longitudinal beam 12 for bolt connection, so that bolts can be directly installed to connect the crossbeam 13 in the first assembly part 100 between the first longitudinal beam 11 and the second longitudinal beam 12, thereby achieving high assembly efficiency.

[0088] In some embodiments, the battery pack assembly fixture 20 further includes a clamping member 24 for detachably clamping both the base plate 2 and the carried cell assembly 3 along an alternating arrangement direction to the crossbeam 13.

[0089] like Figures 8-11 As shown, after the first assembly part 100 is assembled, the clamping member 24 is used to hold the first assembly part 100 along the alternating arrangement direction (i.e., as shown) Figure 8(As shown in the left and right directions) clamp the first assembly part 100, then remove the first positioning beam 231 and the second positioning beam 232, then move the first assembly part 100 clamped by the clamping member 24 into the assembly space of the second assembly part 200, connect the crossbeam 13 of the first assembly part 100 between the first longitudinal beam 11 and the second longitudinal beam 12, and then remove the clamping member 24.

[0090] The clamping member 24 ensures the compactness of the first assembly part 100 and defines the position of each crossbeam 13 in the first assembly part 100, so that all the crossbeams 13 in the first assembly part 100 fall to the designated installation position in the second assembly part 200. At the same time, the clamping member 24 replaces the positioning beam 23, so that the positioning beam 23 can be removed to avoid interference between the positioning beam 23 and the first longitudinal beam 11 and the second longitudinal beam 12 during the movement to the fall-back position.

[0091] It should be noted that after connecting the first assembly part 100 and the second assembly part 200, as... Figure 11 As shown, pressure strip 4 and cover plate (not shown) can be further installed to complete the assembly of battery pack 10. Pressure strip 4 is detachably connected to the top of adjacent support beam 133 with cell group 3 in the middle and abuts against the top surface of cell group 3. Cover plate is detachably provided on the top of the first longitudinal beam 11, the second longitudinal beam 12, and the two support beams 133 at the leftmost and rightmost ends.

[0092] In some embodiments, the clamping member 24 includes a guide rod 241, a fixed clamping head 242, and a movable clamping head 243. The guide rod 241 extends in an alternating direction. One end of the guide rod 241 is provided with the fixed clamping head 242, and the other end of the guide rod 241 is provided with the movable clamping head 243. The movable clamping head 243 is movable along the extending direction of the guide rod 241.

[0093] like Figure 2 As shown, the guide rod 241 extends in the left-right direction. One end of the guide rod 241 in the left-right direction is provided with a fixed clamping head 242. The fixed clamping head 242 is in a constant position relative to the guide rod 241. The other end of the guide rod 241 in the left-right direction is provided with a movable clamping head 243. The movable clamping head 243 can move in the left-right direction relative to the guide rod 241, thereby clamping and releasing the first assembly part 100.

[0094] In some embodiments, the battery pack assembly fixture 20 further includes a base 25, a bracket 26, and a lifter 27. The bracket 26 and the lifter 27 are both disposed on the base 25. The fixed platform 21 is disposed on the bracket 26, and the lifting platform 22 is disposed on the lifter 27 to move between a raised position and a lowered position under the drive of the lifter 27.

[0095] like Figure 1 and Figure 2As shown, the base 25 is horizontally arranged, and vertically extending brackets 26 and lifting devices 27 are provided on the base 25. The tops of several brackets 26 support the fixed platform 21, and the tops of several lifting devices 27 carry the lifting platform 22 and drive the lifting platform 22 to move vertically between the raised position and the lowered position. The lifting device 27 is preferably a telescopic cylinder.

[0096] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "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 element 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.

[0097] Furthermore, the terms "first" and "second" are used only for distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0098] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0099] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0100] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0101] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A battery pack assembly fixture, characterized in that, The battery pack (10) includes a frame assembly (1), a base plate (2), and a cell assembly (3). The frame assembly (1) includes a first longitudinal beam (11), a second longitudinal beam (12), and a plurality of cross beams (13). The plurality of cross beams (13) are spaced apart and connected between the first longitudinal beam (11) and the second longitudinal beam (12). The base plate (2) is provided between adjacent cross beams (13). The cell assembly (3) is provided between at least some of the adjacent cross beams (13), and the cell assembly (3) is supported on the base plate (2). The assembly fixture for the battery pack includes: A fixed platform (21) is provided with a lifting port (211). The fixed platform (21) is used to place and connect the first longitudinal beam (11), the second longitudinal beam (12) and at least one of the cross beams (13), and the lifting port (211) is located in the assembly space surrounded by the first longitudinal beam (11), the second longitudinal beam (12) and at least one of the cross beams (13). A lifting platform (22) is movable relative to the fixed platform (21) between a raised position and a lowered position. The raised position is located above the fixed platform (21), and the lowered position is closer to the fixed platform (21) than the raised position. In the raised position, the lifting platform (22) is used to alternately set the base plate (2) and the battery cell assembly (3) it carries with other beams (13). In the lowered position, the lifting platform (22) is used to move the alternately set base plate (2) and the battery cell assembly (3) it carries with other beams (13) into the assembly space.

2. The assembly fixture for the battery pack according to claim 1, characterized in that, At the lowering position, the lifting platform (22) is located inside the lifting port (211) and is flush with the fixed platform (21).

3. The assembly fixture for the battery pack according to claim 1, characterized in that, The fixed platform (21) includes a strip section (212), and the lifting ports (211) are at least two arranged at intervals. The strip section (212) is located between adjacent lifting ports (211) and is used to support the crossbeam (13).

4. The assembly fixture for the battery pack according to claim 1, characterized in that, The assembly fixture for the battery pack also includes a positioning beam (23), which is used to detachably connect the crossbeams (13) on the lifting platform (22) located at least on both sides along the alternating arrangement direction.

5. The assembly fixture for the battery pack according to claim 4, characterized in that, The positioning beam (23) is used to detachably connect all the crossbeams (13) on the lifting platform (22).

6. The assembly fixture for the battery pack according to claim 4, characterized in that, The positioning beam (23) includes a first positioning beam (231) and a second positioning beam (232). The first positioning beam (231) is used to detachably connect the crossbeam (13) of the lifting platform (22) to one end of the first longitudinal beam (11), and the second positioning beam (232) is used to detachably connect the crossbeam (13) of the lifting platform (22) to the other end of the second longitudinal beam (12).

7. The assembly fixture for the battery pack according to claim 6, characterized in that, The first longitudinal beam (11), the second longitudinal beam (12), the first positioning beam (231), and the second positioning beam (232) are all provided with threaded holes corresponding to the plurality of cross beams (13). The threaded holes are used to install threaded connectors to detachably connect the corresponding cross beams (13). The plurality of threaded holes of the first longitudinal beam (11) are arranged in a position corresponding to the plurality of threaded holes of the first positioning beam (231), and the plurality of threaded holes of the second longitudinal beam (12) are arranged in a position corresponding to the plurality of threaded holes of the second positioning beam (232).

8. The assembly fixture for the battery pack according to claim 1, characterized in that, The assembly fixture for the battery pack also includes a clamping member (24) for detachably clamping the base plate (2) and the battery cell assembly (3) along an alternating arrangement direction to the crossbeam (13).

9. The assembly fixture for the battery pack according to claim 8, characterized in that, The clamping member (24) includes a guide rod (241), a fixed clamping head (242), and a movable clamping head (243). The guide rod (241) extends along an alternating direction. One end of the guide rod (241) is provided with the fixed clamping head (242), and the other end of the guide rod (241) is provided with the movable clamping head (243). The movable clamping head (243) is movable along the extending direction of the guide rod (241).

10. The assembly fixture for the battery pack according to claim 1, characterized in that, The assembly fixture for the battery pack also includes a base (25), a bracket (26), and a lifter (27). The bracket (26) and the lifter (27) are both located on the base (25). The fixed platform (21) is located on the bracket (26), and the lifting platform (22) is located on the lifter (27) to move between the lifting position and the lowering position under the drive of the lifter (27).

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