Battery module hoisting device and system

Abstract

The utility model belongs to the technical field of battery production, and particularly relates to a battery module hoisting device and system. The battery module hoisting device comprises a frame, a hoisting assembly and a positioning mechanism, and the frame is in sliding connection with a movable frame; the positioning mechanism comprises a positioning piece; the positioning piece can move along the direction vertical to the upper cover of the battery module, and the positioning mechanism can slide along the movable frame and is fixed at a preset position. The positioning mechanism provided by the utility model can be flexibly adjusted and has strong universality.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production, and specifically relates to a battery module hoisting device and system. Background Art

[0002] In the assembly process of new energy battery packs, the volume and weight of battery modules are increasing. Therefore, assembling battery modules into the battery pack box has become a huge challenge.

[0003] The existing battery module hoisting tool is equipped with a module placement structure, which can ensure the accurate placement of large modules into the box and reduce the damage of the modules during assembly. However, the position of the positioning mechanism of the existing hoisting tool cannot be flexibly adjusted, which limits the application scope of the hoisting tool. When the battery module model changes, the hoisting tool is no longer applicable and has poor versatility. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a battery module hoisting device and system, the positioning mechanism of which can be flexibly adjusted and has strong versatility.

[0005] In order to solve the deficiencies of the prior art, the technical solution provided by the utility model is:

[0006] A battery module hoisting device comprises a frame, a hoisting assembly and a positioning mechanism.

[0007] The frame is slidably connected with a movable frame;

[0008] The positioning mechanism comprises a positioning piece; the positioning piece can move in a direction perpendicular to the upper cover of the battery module, and the positioning mechanism can slide along the movable frame and be fixed at a preset position.

[0009] Preferably, the movable frame comprises a sliding portion and a connecting portion connected to the sliding portion; the sliding portion is slidably connected to the frame; the connecting portion is provided with a sliding rail groove penetrating from top to bottom;

[0010] The positioning mechanism can slide along the slide rail groove and be fixed at a preset position.

[0011] Preferably, the frame is provided with a slide groove and a support frame; the support frame is located on both sides of the slide groove, a sliding threaded screw rod is rotatably connected to the support frame on one side of the slide groove, and a smooth guide rod is connected to the support frame on the other side; the sliding threaded screw rod and the smooth guide rod are parallel to the slide groove;

[0012] The sliding part is provided with a through hole and a threaded hole, and is connected with a sliding limit block; the sliding limit block is slidably connected with the sliding groove;

[0013] The sliding threaded screw rod passes through the threaded hole and is threadedly connected with the sliding part; the smooth guide rod passes through the through hole and is slidably connected with the sliding part.

[0014] Preferably, the cross section of the slide rail groove is cross-shaped;

[0015] The positioning member is a positioning smooth screw rod; the positioning mechanism also includes a locking bolt, a cylindrical boss and a locking nut;

[0016] The locking nut is overlapped in the middle cavity of the slide rail groove and can move horizontally along the slide rail groove;

[0017] The locking bolt has a vertical cavity inside, which is in an inverted T shape, the lower part of which penetrates into the slide rail groove and is threadedly connected with the locking nut, and the upper part is located above the connecting part;

[0018] The positioning smooth screw rod passes through the cavity inside the locking bolt, can slide up and down along the cavity inside the locking bolt, and is connected to a cylindrical boss on the upper part;

[0019] The cylindrical boss is overlapped on the locking bolt.

[0020] Preferably, the hoisting assembly includes a suction cup mechanism; the suction cup mechanism includes a threaded rod and a suction cup;

[0021] The frame is provided with threaded holes;

[0022] The bottom of the threaded rod is connected to the suction cup, and the upper part is connected to the threaded hole.

[0023] Preferably, the hoisting assembly includes a hoisting mechanism; the hoisting mechanism includes a movable hanging ear mechanism and a hoisting shell;

[0024] The hanging shell is sleeved on the connecting part; the hanging shell is provided with a cavity, and a hidden hanging ear slot connected to the cavity is provided at the lower part; the hidden hanging ear slot is hollowed out on the side facing the battery module; the upper part of the hanging shell is provided with a first limiting slot and a second limiting slot connected to the cavity; the first limiting slot faces the battery module; the angle between the second limiting slot and the first limiting slot is greater than 90°;

[0025] The movable ear hanging mechanism is located in the cavity and can rotate in the cavity; the upper part of the movable ear hanging mechanism is connected to a lifting limit block, and the lifting limit block cooperates with the first limit groove or the second limit groove; the lifting limit block is connected to a handle; the lower part of the movable ear hanging mechanism is connected to the ear hanging block.

[0026] Preferably, the hanging shell is provided with two slide rail holes in the same direction as the connecting portion; the connecting portion is located in the slide rail holes; and the hanging shell can slide along the connecting portion.

[0027] Preferably, the movable ear-hanging mechanism is sleeved with a spring; the spring is located above the ear-hanging block and in the hidden ear-hanging groove.

[0028] Preferably, a lifting ring is connected to the frame.

[0029] A battery module hoisting system comprises the aforementioned battery module hoisting device.

[0030] Beneficial effects of the utility model:

[0031] The battery module lifting device provided by the utility model can adapt to the lifting of battery modules of different models through the sliding arrangement of the movable frame and the sliding arrangement of the positioning mechanism, and has strong versatility; the lowering direction of the battery module is fixed by the positioning mechanism, and the battery module is not only fast but also safe to enter the box, which solves the problems of difficult positioning of the module when entering the box and the battery module being extremely easy to be damaged during the assembly process.

[0032] The battery module hoisting device provided by the utility model has a suction cup mechanism whose height can be flexibly adjusted.

[0033] The battery module lifting device provided by the utility model has a lifting mechanism whose position can be flexibly adjusted. At the same time, the arrangement of hidden hanging ear grooves can prevent exposed hanging ear blocks from damaging the battery module and the battery box, thereby reducing the space occupied by the battery module lifting device in the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a top view of the battery module lifting device provided in Example 1;

[0035] Figure 2 is a top view of the suction cup mechanism provided in the first embodiment;

[0036] Figure 3 is a front cross-sectional schematic diagram of the suction cup mechanism provided in the first embodiment;

[0037] Figure 4 It is a schematic diagram of the connection between the movable frame, the positioning mechanism and the lifting mechanism provided in the first embodiment;

[0038] Figure 5 is a top view of the hoisting mechanism provided in the first embodiment;

[0039] Figure 6 is a cross-sectional view of the cooperation between the lifting mechanism and the connecting part provided in the first embodiment;

[0040] Figure 7 is a cross-sectional view of the hoisting housing provided in the first embodiment;

[0041] Figure 8 is a schematic diagram of a mobile ear hanging mechanism provided in Example 1;

[0042] Fig. 9 It is a schematic diagram of the installation of the hoisting housing and the movable hanging ear mechanism provided in the first embodiment;

[0043] Fig.10 is a side view of the connection between the hanging housing and the connection part provided in the first embodiment;

[0044] Fig.11 is a schematic diagram of the installation of the positioning mechanism and the connecting part provided in the first embodiment;

[0045] In the figure: 1, frame; 101, support frame; 102, smooth guide rod; 103, sliding threaded screw rod;

[0046] 2. Chute;

[0047] 3. Movable frame; 301. Sliding part; 302. Through hole; 303. Threaded hole; 304. Sliding stop block; 305. Slide rail groove; 306. Connecting part;

[0048] 4. Positioning mechanism; 401. Locking bolt; 402. Positioning smooth screw; 403. Cylindrical boss; 404. Locking nut;

[0049] 5. Lifting ring; 6. Threaded hole;

[0050] 7. Suction cup mechanism; 701. Threaded rod; 702. Suction cup;

[0051] 8. Lifting mechanism; 801. Lifting shell; 80111. First limiting groove; 80112. Second limiting groove; 8012. Cavity; 8013. Hidden hanging ear groove; 8014. Slide rail hole; 802. Mobile hanging ear mechanism; 8021. Handle; 8022. Lifting limiting block; 8023. Spring; 8024. Hanging ear block. DETAILED DESCRIPTION

[0052] The present invention is further described below in conjunction with the implementation modes. The following implementation modes are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning. Embodiment 1

[0056] This embodiment provides a battery module lifting device, see Figure 1 , including a frame 1, a hoisting assembly and a positioning mechanism 4. The frame 1 is slidably connected to a movable frame 3; the positioning mechanism 4 includes a positioning member; the positioning member can move in a direction perpendicular to the upper cover of the battery module, and the positioning mechanism 4 can slide along the movable frame 3 and be fixed at a preset position.

[0057] like Figure 1 As shown, the movable frame 3 is arranged on the frame 1, and two movable frames 3 are provided, and the two movable frames 3 are parallel to each other. A positioning mechanism 4 is connected to each side of each movable frame 3. The preset position is determined by the battery module model. When the battery module model changes, the positioning mechanism 4 can adapt to the change of the battery module side plate model by changing the distance between the two movable frames 3, and the positioning mechanism 4 can adapt to the change of the battery module end plate model by sliding the positioning mechanism 4 along the movable frame 3. Therefore, the battery module lifting device provided in this embodiment can adapt to the lifting of battery modules of different models and has strong versatility.

[0058] After the positioning mechanism 4 is adjusted to the preset position, subsequent hoisting can be carried out. During hoisting, the hoisting assembly is connected to the battery module, and the positioning piece is inserted into the rod hole of the battery module in a direction perpendicular to the upper cover of the battery module. The battery module is hoisted to an appropriate position above the battery pack box, and then the positioning piece is adjusted to move in a direction perpendicular to the upper cover of the battery module and inserted into the rod hole on the box. At this time, the descending direction of the battery module is fixed, and the battery module can accurately enter the fixed position inside the battery pack, and the battery module is quickly and safely put into the box.

[0059] In an optional embodiment of the present invention, see Figure 1 and Figure 4 The movable frame 3 includes a sliding portion 301 and a connecting portion 306 connected to both ends of the sliding portion 301. The sliding portion 301 is slidably connected to the frame 1. The connecting portion 306 is provided with a slide rail groove 305 that passes through from top to bottom, and the positioning mechanism 4 can slide along the slide rail groove 305 and be fixed at a preset position. A limiting structure can be provided at the outer end of the connecting portion 306.

[0060] In an optional embodiment of the present invention, see Figure 1 and Figure 4 , two slide grooves 2 are provided on the frame 1. The two slide grooves 2 are symmetrically grooved with the center of the frame 1, and support frames 101 are fixedly installed on both sides of the slide grooves 2. A sliding threaded screw 103 is rotatably connected to the support frame 101 on one side, and a smooth guide rod 102 is connected to the support frame 101 on the other side. The sliding threaded screw 103 and the smooth guide rod 102 are parallel to the slide groove 2. The sliding part 301 is in an inverted U shape, and through holes 302 and threaded holes 303 are provided at the corners on both sides of the sliding part 301, and a sliding limit block 304 is connected to the lower middle part. The sliding threaded screw 103 passes through the threaded hole 303 and is threadedly connected to the sliding part 301, and the smooth guide rod 102 passes through the through hole 302 and is slidably connected to the sliding part 301. The sliding limit block 304 is slidably connected to the slide groove 2. A rotating handle and other components can be connected to the outer end of the sliding threaded screw 103. When in use, the sliding threaded screw rod 103 is rotated to make the sliding limit block 304 slide along the sliding groove 2, thereby adjusting the distance between the two movable frames 3.

[0061] In an optional embodiment of the present invention, see Figure 1 , Figure 4 and Fig.11 , the cross section of the slide rail groove 305 is cross-shaped. The positioning member is a positioning smooth screw rod 402; the positioning mechanism 4 also includes a locking bolt 401, a cylindrical boss 403 and a locking nut 404. The locking nut 404 is overlapped in the middle cavity of the slide rail groove 305 and can move horizontally along the slide rail groove 305. A vertical cylindrical cavity is provided inside the locking bolt 401, which is in an inverted T shape. The lower part penetrates into the slide rail groove 305 and is threadedly connected with the locking nut 404, and the upper part is located above the connecting part 306. The positioning smooth screw rod 402 passes through the cavity in the locking bolt 401 and can slide up and down along the cavity. A cylindrical boss 403 is fixed on the upper part. The cylindrical boss 403 overlaps the locking bolt 401 to play a limiting role. When in use, the position of the positioning mechanism 4 on the movable frame 3 is adjusted by moving the locking bolt 401 that passes through the middle, and then the locking bolt 401 is screwed into the locking nut 404 to lock the position of the positioning mechanism 4 on the movable frame 3. The positioning smooth screw rod 402 can slide up and down along the locking bolt 401, which is also convenient for adjusting the vertical position of the positioning smooth screw rod 402 during hoisting.

[0062] In an optional embodiment of the present invention, see Figure 1 , Figure 2 and Figure 3 The hoisting assembly includes a suction cup mechanism 7, and the suction cup mechanism 7 includes a connected threaded rod 701 and a suction cup 702; a threaded hole 6 is provided in the center of the frame 1. An inverted T-shaped groove is provided above the suction cup 702, and the threaded rod 701 is in an inverted T shape, with the bottom located in the inverted T-shaped groove, and the upper part is connected to the threaded hole 6. By adjusting the relative position of the threaded rod 701 and the frame 1, the height of the suction cup 702 can be adjusted so that the suction cup 702 can fit well with the battery module below. For new battery modules that omit the end plate, the battery module can be hoisted by the adsorption of the suction cup mechanism 7. When other functional components are used to realize the hoisting of the battery module, the suction cup 702 plays a dual protective role.

[0063] In other embodiments of the present invention, see Figure 1 and Figure 4 The lifting assembly includes four lifting mechanisms 8. Fig. 9 The hanging mechanism 8 includes a movable hanging ear mechanism 802 and a hanging shell 801. Figure 4 , Figure 6 and Fig.10 The upper part of the hanging housing 801 is provided with two slide rail holes 8014 in the same direction as the connecting part 306. The connecting part 306 is located in the slide rail holes 8014. The hanging housing 801 is sleeved on the connecting part 306 and can slide along the connecting part 306. Figure 5 , Figure 6 and Figure 7 The hoisting shell 801 is provided with a vertical cavity 8012, and a hidden ear groove 8013 connected to the cavity 8012 is provided at the bottom; the hidden ear groove 8013 is hollowed out on one side facing the end plate of the battery module, and the upper part of the hoisting shell 801 is provided with a first limiting groove 80111 and a second limiting groove 80112 connected to the cavity 8012, the first limiting groove 80111 faces the end plate of the battery module, and the angle between the second limiting groove 80112 and the first limiting groove 80111 is greater than 90°, and the second limiting groove 80112 is preferably perpendicular to the first limiting groove 80111. The shape of the cavity 8012 is preferably cylindrical. Figure 5 , Figure 6 , Figure 8 and Fig. 9The movable ear hanging mechanism 802 is located in the cavity 8012 and can rotate in the cavity 8012. The upper part of the movable ear hanging mechanism 802 is connected with a lifting limit block 8022, which cooperates with the first limit groove 80111 or the second limit groove 80112. The lifting limit block 8022 is connected with a handle 8021; the lower part of the movable ear hanging mechanism 802 is connected with an ear hanging block 8024. The ear hanging block 8024 is in the same direction as the lifting limit block 8022, and the ear hanging block 8024 cooperates with the ear hanging groove of the battery module end plate. The movable ear hanging mechanism 802 is sleeved with a spring 8023; the spring 8023 is located above the ear hanging block 8024 and in the hidden ear hanging groove 8013. The movable ear mechanism 802 is rotated by rotating the handle 8021, and the lifting limit block 8022 is switched between the first limit slot 80111 and the second limit slot 80112. When the lifting limit block 8022 is matched with the first limit slot 80111 facing the end plate of the battery module, the ear block 8024 extends from the hidden ear slot 8013 toward the end plate of the battery module, and the lifting operation can be performed at this time. After the lifting operation is completed, the lifting limit block 8022 is moved out of the first limit slot 80111 facing the end plate of the battery module and matched with the second limit slot 80112, and the ear block 8024 is retracted into the hidden ear slot 8013, which can prevent the exposed ear block 8024 from damaging the battery module and the battery box, and at the same time can reduce the space occupied by the battery module lifting device in the battery box. The spring 8023 plays a locking role to ensure that when the lifting limit block 8022 cooperates with the first limit groove 80111 or the second limit groove 80112, the ear block 8024 will not move in the hidden ear groove 8013.

[0064] In an optional embodiment of the present invention, see Figure 1 Four symmetrical lifting rings 5 ​​are installed on both sides of the upper part of the frame 1.

[0065] The method of using the device is as follows:

[0066] By rotating and sliding the threaded screw 103, the two movable frames 3 are adjusted to the appropriate position, and the lifting mechanism 8 slides along the movable frame 3 to make it in a suitable lifting position, and then the lifting ring 5 on the lifting tool is connected to the lifting equipment. After that, the battery module lifting device is moved as a whole to the top of the battery module, and the lifting mechanism 8 is moved to the appropriate position on the side of the battery module end plate by rotating and sliding the threaded screw 103. By lifting the handle 8021, the lifting limit block 8022 is rotated into the first limit groove 80111, so that the ear block 8024 extends from the hidden ear groove 8013 into the ear groove of the end plate, and then the two movable frames 3 are adjusted to the appropriate position by rotating and sliding the threaded screw 103 to lock the ear block 8024 and support the module. At this time, the threaded rod 701 on the suction cup mechanism 7 is adjusted to make the suction cup 702 close to the top of the battery module and suck the battery module tightly, and the complete module battery is lifted. Then adjust the position of the positioning mechanism 4 on the movable frame 3, and adjust the positioning smooth screw rod 402 on the positioning mechanism 4 to make it move in a direction perpendicular to the upper cover of the battery module and insert it into the pull rod hole of the battery module, then hoist the battery module to an appropriate position above the battery pack box, and insert the positioning smooth screw rod 402 into the pull rod hole of the box, at this time, the descending direction of the four corners of the module is fixed, and then the hoisting equipment on the lifting ring 5 is used to move the battery module hoisting device in a direction perpendicular to the upper cover of the battery module, at this time, the positioning smooth screw rod 402 does not move, and the frame 1, movable frame 3, hoisting mechanism 8 and other components follow the battery module to move downward, completing the assembly of the battery module into the box, and then the suction cup mechanism 7 is separated from the battery module, and the handle 8021 is lifted to rotate the hoisting limit block 8022 to the second limit groove 80112, so that the ear block 8024 retracts to hide the ear groove 8013, and the battery module hoisting device is moved out of the battery box through the hoisting equipment. Embodiment 2

[0067] This embodiment provides a battery module hoisting system, including the battery module hoisting device provided in the first embodiment, whose positioning mechanism can be flexibly adjusted and has strong versatility.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A battery module hoisting device, comprising a frame (1), a hoisting assembly and a positioning mechanism (4), characterized in that: The frame (1) is slidably connected to a movable frame (3); the movable frame (3) comprises a connecting portion (306), and the connecting portion (306) is provided with a sliding rail groove (305) penetrating vertically; The positioning mechanism (4) comprises a positioning member, a locking bolt (401) and a locking nut (404); the positioning member can move in a direction perpendicular to the upper cover of the battery module, and the locking nut (404) overlaps the middle cavity of the slide rail groove (305) and can move horizontally along the slide rail groove (305); the lower part of the locking bolt (401) penetrates into the slide rail groove (305) and is threadedly connected to the locking nut (404), and the upper part is located above the connecting part (306), and the positioning mechanism (4) can slide along the movable frame (3) and be fixed at a preset position.

2. The battery module hoisting device according to claim 1, characterized in that: The movable frame (3) comprises a sliding portion (301), and a connecting portion (306) is connected to the sliding portion (301); the sliding portion (301) is slidably connected to the frame (1); The positioning mechanism (4) can slide along the slide rail groove (305) and be fixed at a preset position.

3. The battery module hoisting device according to claim 2, characterized in that: The frame (1) is provided with a slide groove (2) and a support frame (101); the support frame (101) is located on both sides of the slide groove (2); a sliding threaded screw rod (103) is rotatably connected to the support frame (101) on one side of the slide groove (2), and a smooth guide rod (102) is connected to the support frame (101) on the other side; the sliding threaded screw rod (103) and the smooth guide rod (102) are parallel to the slide groove (2); The sliding portion (301) is provided with a through hole (302) and a threaded hole (303), and is connected to a sliding limit block (304); the sliding limit block (304) is slidably connected to the sliding groove (2); The sliding threaded screw rod (103) passes through the threaded hole (303) and is threadedly connected to the sliding part (301); the smooth guide rod (102) passes through the through hole (302) and is slidably connected to the sliding part (301).

4. The battery module hoisting device according to claim 2, characterized in that: The cross section of the slide rail groove (305) is cross-shaped; The positioning member is a positioning smooth screw rod (402); the positioning mechanism (4) further comprises a cylindrical boss (403); The locking bolt (401) has a vertical cavity inside, which is in an inverted T shape; The positioning smooth screw (402) passes through the cavity inside the locking bolt (401), can slide up and down along the cavity inside the locking bolt (401), and is connected to a cylindrical boss (403) at the top; The cylindrical boss (403) is overlapped on the locking bolt (401).

5. The battery module hoisting device according to claim 1, characterized in that: The lifting assembly comprises a suction cup mechanism (7); the suction cup mechanism (7) comprises a threaded rod (701) and a suction cup (702); The frame (1) is provided with a threaded hole (6); The bottom of the threaded rod (701) is connected to the suction cup (702), and the upper part is connected to the threaded hole (6).

6. The battery module hoisting device according to claim 2, characterized in that: The hoisting assembly comprises a hoisting mechanism (8); the hoisting mechanism (8) comprises a movable hanging ear mechanism (802) and a hoisting shell (801); The hanging shell (801) is sleeved on the connecting portion (306); the hanging shell (801) is provided with a cavity (8012), and the lower part is provided with a hidden hanging ear groove (8013) connected with the cavity (8012); the hidden hanging ear groove (8013) is hollowed out on the side facing the battery module; the upper part of the hanging shell (801) is provided with a first limiting groove (80111) and a second limiting groove (80112) connected with the cavity (8012); the first limiting groove (80111) faces the battery module; the angle between the second limiting groove (80112) and the first limiting groove (80111) is greater than 90°; The movable ear hanging mechanism (802) is located in the cavity (8012) and can rotate in the cavity (8012); the upper part of the movable ear hanging mechanism (802) is connected to a lifting limit block (8022), and the lifting limit block (8022) cooperates with the first limit groove (80111) or the second limit groove (80112); the lifting limit block (8022) is connected to a handle (8021); and the lower part of the movable ear hanging mechanism (802) is connected to an ear hanging block (8024).

7. The battery module hoisting device according to claim 6, characterized in that: The hanging shell (801) is provided with two slide rail holes (8014) in the same direction as the connecting portion (306); the connecting portion (306) is located in the slide rail holes (8014); and the hanging shell (801) is capable of sliding along the connecting portion (306).

8. The battery module hoisting device according to claim 6, characterized in that: The movable ear hook mechanism (802) is sleeved with a spring (8023); the spring (8023) is located above the ear hook block (8024) and inside the hidden ear hook slot (8013).

9. The battery module hoisting device according to claim 1, characterized in that: A lifting ring (5) is connected to the frame (1).

10. A battery module hoisting system, characterized in that: A battery module lifting device comprising the battery module lifting device as described in any one of claims 1 to 9.

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