Transfer device suitable for power battery modules of multiple sizes

Abstract

The utility model relates to the technical field of battery production equipment, in particular to a transfer device suitable for multi-size power battery modules, which comprises a main body frame, a first part frame and a second part frame, wherein the main body frame is rectangular in the overlook direction and is provided with the first part frame and the second part frame which can be separated; the first part frame and the second part frame form a [shape in the overlook direction; the two sides of the first part frame and the two sides of the second part frame are provided with matched guide rail-shaped structures. The first part frame and the second part frame are oppositely mounted together through a guide rail-shaped structure and are connected in a sliding manner; and the lifting hooks are respectively arranged at two opposite ends of the first part frame and the second part frame. In order to solve the problem that a battery module clamp in the prior art cannot adapt to battery modules of different specifications, the first part frame and the second part frame can generate relative displacement through the guide rail-shaped structure, so that the distance between the lifting hooks arranged at the two ends is changed, and the battery modules of different lengths are effectively clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, and in particular to a transfer device suitable for power battery modules of multiple sizes. Background Art

[0002] A power battery module can be understood as the intermediate product between a cell and a battery pack, formed by combining lithium-ion cells in series and parallel, and equipped with a single-cell monitoring and management device. Its structure supports, secures, and protects the cells. Typically, a power battery pack contains multiple, for example, four, battery modules, combining them to achieve a higher total capacity.

[0003] In the prior art, there are already related clamping devices for hoisting power battery modules. For example, Chinese patent CN201810875449.0 discloses a battery module clamp, which includes: a support base; two clamping arms, at least one of which is mounted on the support base in a manner that allows it to slide relative to the support base, and a clamping claw is rotatably connected to the free end of each clamping arm; a sliding drive mechanism, which is mounted on the support base and can drive the at least one clamping arm to slide; and a rotation drive mechanism, which can drive the clamping claw to rotate relative to the clamping arm. The above-mentioned battery module clamp realizes the clamping, translation and flipping operations of the battery module, thereby improving production efficiency.

[0004] However, during actual implementation, the inventors discovered that different OEMs have different requirements for battery pack voltage, capacity, and other indicators, resulting in different cell combinations and, in turn, variations in the specifications of power battery modules. These variations render the original fixture, designed for a single specification, ineffective in effectively clamping the battery module. Utility Model Content

[0005] In view of the above problems existing in the prior art, a transfer device suitable for multi-sized power battery modules is now provided.

[0006] The specific technical solutions are as follows:

[0007] A transfer device suitable for power battery modules of various sizes, comprising a main frame and a hook;

[0008] The main frame is rectangular in a top view and comprises a separable first and second partial frames;

[0009] The first partial frame and the second partial frame are in a U shape when viewed from above;

[0010] Both sides of the first partial frame and the second partial frame have matching guide rail structures;

[0011] The first partial frame and the second partial frame are mounted together in opposite directions and slidably connected via the guide rail structure;

[0012] The hooks are respectively arranged at opposite ends of the first partial frame and the second partial frame.

[0013] On the other hand, the guide rail-like structure includes an inner guide rail structure and an outer guide rail structure that are separated from each other;

[0014] The internal guide rail structure is in the shape of an elongated cube;

[0015] The external guide rail structure is a sleeve-shaped structure, and the external guide rail structure is sleeved on the outside of the internal guide rail structure;

[0016] A first fastening device is provided at a distal end point of the external guide rail structure.

[0017] On the other hand, the left side of the first partial frame is provided with the external guide rail structure;

[0018] The inner guide rail structure is provided on the right side of the first part frame;

[0019] The left side of the second part frame is provided with the inner guide rail structure;

[0020] The outer guide rail structure is provided on the right side of the second partial frame.

[0021] On the other hand, the main framework also includes:

[0022] A telescopic adjustment structure, wherein the telescopic adjustment structure is mesh-shaped when viewed from above and includes a plurality of sliding rods;

[0023] A first rotating shaft is provided at each end of each slide bar, and a second rotating shaft is provided at the midpoint of the slide bar;

[0024] The sliding rods are arranged crosswise in a mesh shape, and the mutually crossed sliding rods are rotatably connected via the second rotating shaft;

[0025] Two adjacent groups of the sliding rods are rotationally connected via the first rotating shaft.

[0026] On the other hand, a slide structure is provided above the first partial frame and the second partial frame respectively;

[0027] The first rotating shafts of the sliding rods located at the head end and the tail end are installed in the sliding groove structure to slide.

[0028] On the other hand, a first spring mounting seat is provided above the first partial frame and the second partial frame respectively;

[0029] The second rotating shaft of the sliding rod at the head end and the end end is respectively provided with a second spring mounting seat on one side close to the first partial frame or the second partial frame;

[0030] A return spring is installed between the first spring mounting seat and the second spring mounting seat.

[0031] On the other hand, the hook includes a first hook, a second hook and an adjustment gear;

[0032] A first U-shaped groove is provided at the upper end of the first hook, and a first rack is provided on the first inner side surface of the first U-shaped groove;

[0033] The upper end of the second hook is provided with a second U-shaped groove, the second U-shaped groove is a hollow tube structure, and the first U-shaped groove is inserted into the second U-shaped groove;

[0034] A second rack is provided on the second inner side surface of the second U-shaped groove;

[0035] The adjusting gear matches the first rack and the second rack that are arranged opposite to each other.

[0036] On the other hand, the rotating shaft of the adjusting gear is installed on the first partial frame or the second partial frame, and the portion of the rotating shaft exposed from the first partial frame and the second partial frame is installed with an adjusting handle.

[0037] On the other hand, hanging rings are installed on the four corners of the main frame.

[0038] On the other hand, insulating sheets are respectively installed on the lower surfaces of the first rotating shaft and the second rotating shaft.

[0039] The above technical solution has the following advantages or beneficial effects:

[0040] To address the problem that existing battery module clamps cannot accommodate battery modules of varying sizes, this embodiment employs a main frame structure consisting of a first and second frame sections positioned opposite each other, with a guide rail structure positioned at the center joint. This guide rail structure allows the first and second frame sections to move relative to each other, thereby varying the spacing between the hooks at each end and effectively clamping battery modules of varying lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The embodiments of the present invention will be described more fully with reference to the accompanying drawings, which are for illustration and description only and are not intended to limit the scope of the present invention.

[0042] Figure 1Schematic diagram of the whole of the embodiment of the present utility model;

[0043] Figure 2 Schematic diagram of the telescopic adjustment structure of the embodiment of the present utility model;

[0044] Figure 3 Schematic diagram of the lifting hook of the embodiment of the present utility model;

[0045] Figure 4 Schematic diagram of the lifting hook of the embodiment of the present utility model. Specific embodiments

[0046] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0047] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0048] Next, the present utility model will be further described in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present utility model.

[0049] The present utility model includes:

[0050] A transfer device applicable to power battery modules of multiple sizes, as Figure 1 shown, including a main body frame 1 and a lifting hook 2;

[0051] The main body frame 1 is rectangular in the top view direction and has a separable first part frame 11 and a second part frame 12;

[0052] The first part frame 11 and the second part frame 12 are in a U-shaped in the top view direction;

[0053] Both sides of the first part frame 11 and the second part frame 12 have matching guide rail-like structures 3;

[0054] The first part frame 11 and the second part frame 12 are oppositely installed and slidably connected together through the guide rail-like structures 3;

[0055] The lifting hooks 2 are respectively arranged at the opposite ends of the first part frame 11 and the second part frame 12.

[0056] Specifically, to address the problem that existing battery module clamps cannot accommodate battery modules of varying sizes, this embodiment configures the main frame 1 into a first partial frame 11 and a second partial frame 12, which are positioned opposite each other. A guide rail structure 3 is provided at the intermediate butting portion. This guide rail structure 3 allows relative displacement between the first and second partial frames 11, 12, thereby varying the spacing between the hooks 2 at each end, effectively clamping battery modules of varying lengths.

[0057] Specifically, the main frame 1 is a rectangular structure, the top of which is typically used to connect to an external transport mechanism, such as an overhead crane. The battery module is typically in the shape of an elongated cube, with lifting holes or other equivalent structures at both ends, allowing hooks 2 to be inserted and lifted and transported.

[0058] In one embodiment, the guide rail structure 3 includes an inner guide rail structure 31 and an outer guide rail structure 32 that are separated from each other;

[0059] The internal guide rail structure is in the shape of a 31-long cube;

[0060] The external guide rail structure 32 is a sleeve-shaped structure, and the external guide rail structure 31 is sleeved on the outside of the internal guide rail structure 32;

[0061] A first fastening device 33 is provided at a distal end of the outer guide rail structure 32 .

[0062] Specifically, in order to adjust the distance between the first partial frame 11 and the second partial frame 12 , in this embodiment, the guide rail structure between the first partial frame 11 and the second partial frame 12 is set to be the same guide rail structure 3 .

[0063] The guide rail structure 3 comprises an inner guide rail structure 31 and an outer guide rail structure 32, which are separated from each other. The inner guide rail structure 31 is in the shape of an elongated cube and extends into the outer guide rail structure 32 to change its overall length. The outer guide rail structure 31 is sleeved onto the outside of the inner guide rail structure 32, and a first fastening device 33 is provided at the distal end. This first fastening device 33 is typically a locating bolt or other equivalent device that can be used to fasten the inner and outer guide rail structures 31 and 32.

[0064] For example, the first fastening device 33 is a bolt handle. It is mounted on the outer surface of the outer guide rail structure 31 via a threaded through-hole, passing through the outer guide rail structure 31 and abutting against the surface of the inner guide rail structure 31. When the bolt handle is tightened with a certain torque, the threads on the bolt handle and the threads in the threaded through-hole abut against each other, applying pressure to the lower end of the bolt handle and the surface of the inner guide rail structure 31, thereby achieving frictional fixation of the inner guide rail structure 31.

[0065] As an optional embodiment, positioning holes may also be configured on the surface of the internal guide rail structure 31 to assist in fixing the bolt handle.

[0066] When the length of the main frame 1 needs to be adjusted, first loosen the first fastening device 33, then pull the inner rail structure 31 to change the length of its extension into the outer rail structure 32. When the overall length of the main frame 1 matches the corresponding battery module, tighten the first fastening device 33.

[0067] Based on the above settings, the guide rail structure can be configured as follows:

[0068] An external guide rail structure 31 is provided on the left side of the first partial frame 11;

[0069] An internal guide rail structure 32 is provided on the right side of the first partial frame 11;

[0070] An inner guide rail structure 32 is provided on the left side of the second partial frame 12;

[0071] An external guide rail structure 31 is provided on the right side of the second partial frame 12 .

[0072] The above arrangement allows the first partial frame 11 and the second partial frame 12 to be centrally symmetrically arranged, thereby avoiding the bending problem that may be caused by arranging the same sleeve on the same side when the elongated length is long.

[0073] Accordingly, after selecting the above-mentioned frame structure, hanging rings 13 may be installed on the four corners of the main frame 1 , and the main frame 1 may be hoisted on an external mobile device through the hanging rings 13 .

[0074] In one embodiment, the main frame 1 further includes:

[0075] The telescopic adjustment structure 4 is mesh-shaped when viewed from above and includes a plurality of slide bars 41;

[0076] A first rotating shaft 42 is provided at each end of each slide bar 41, and a second rotating shaft 43 is provided at the midpoint of the slide bar 41;

[0077] The sliding rods 41 are arranged crosswise in a mesh shape, and the mutually crossed sliding rods 41 are rotatably connected via a second rotating shaft 43;

[0078] Two adjacent groups of sliding rods 41 are rotatably connected via first rotating shafts 42 .

[0079] Specifically, to achieve better stability of the main frame 1, this embodiment also provides a mesh-like telescopic adjustment structure 4 to assist in structural reinforcement and telescoping. The telescopic adjustment structure 4 is composed of multiple slide bars 41, each of which has a first rotation axis 42 at each end and a second rotation axis 43 at its midpoint.

[0080] During assembly, the slide bars 41 are first arranged in a crosswise diamond pattern, with the slide bars 41 facing the same direction and parallel to each other. The crossed slide bars 41 are then connected at their top and bottom surfaces by first pivots 42, which rotate when the length is changed. The ends of adjacent slide bars 41 are connected by second pivots 43, which rotate to adjust the angle between the two slide bars 41 when the length is changed.

[0081] In one embodiment, Figure 2 As shown, a slide groove structure 14 is provided above the first partial frame 11 and the second partial frame 12 respectively;

[0082] The first rotating shafts 42 of the sliding rods 41 at the head end and the tail end are installed in the sliding groove structure 14 to slide.

[0083] Specifically, to ensure a secure connection between the telescopic adjustment structure 4 and the first and second partial frames 11, 12, in this embodiment, two chute structures 14 are provided above the first and second partial frames 11, 12. The chute structures 14 are rectangular holes, corresponding to the first rotating shafts 42 at the two corners of the slide bar 41. The first rotating shafts 42 of the slide bar 41 at the head and tail ends are mounted in the chute structures 14. When telescoping occurs, the telescopic adjustment structure 4 is connected to the first and second partial frames 11, 12 along the chute structures 14.

[0084] In one embodiment, a first spring mounting seat is further provided above the first partial frame 11 and the second partial frame 12 respectively;

[0085] The second rotating shaft 43 of the sliding rod 41 at the head end and the end end is respectively provided with a second spring mounting seat on one side close to the first partial frame or the second partial frame;

[0086] A return spring 44 is installed between the first spring mounting seat and the second spring mounting seat.

[0087] Specifically, to securely connect the telescopic adjustment structure 4 to the first and second partial frames 11, 12, in this embodiment, first spring mounts are provided above the first and second partial frames 11, 12, respectively. Second spring mounts are provided on the side of the second rotating shaft 43 of the slide bar 41, located at the head and tail ends, respectively, near the first or second partial frame. A return spring 44 is installed between the first and second spring mounts to connect the first and second partial frames 11, 12 at their respective ends. When the length between the first and second partial frames 11, 12 is changed, the return spring 44 causes the telescopic adjustment structure 4 to be tensioned.

[0088] In one embodiment, an insulating sheet 45 is mounted on the lower surface of the first rotating shaft 42 and the lower surface of the second rotating shaft 43 .

[0089] Specifically, considering that tabs and busbars are provided above some battery modules, in order to achieve better insulation, in this embodiment, rectangular, mutually separated insulating sheets 45 are respectively installed on the lower surfaces of the first rotating shaft 42 and the second rotating shaft 43, which can maintain insulation to the telescopic adjustment structure 4 above and move with the extension and contraction of the telescopic adjustment structure 4.

[0090] In one embodiment, Figure 3 As shown, the hook 2 includes a first hook 21, a second hook 22 and an adjusting gear 23;

[0091] A first U-shaped groove is provided at the upper end of the first hook 21, and a first rack 24 is provided on the first inner side surface of the first U-shaped groove;

[0092] The upper end of the second hook 22 is provided with a second U-shaped groove, the second U-shaped groove is a hollow tube structure, and the first U-shaped groove is inserted into the second U-shaped groove oppositely;

[0093] A second rack 25 is provided on the second inner side surface of the second U-shaped groove;

[0094] The adjusting gear 23 matches with a first rack 24 and a second rack 25 which are arranged opposite to each other.

[0095] Specifically, to address the problem that changes in battery module specifications will lead to changes in the lifting position, in this embodiment, a hook 2 with the above structure is provided. The hook 2 includes a first hook 21 and a second hook 22 that are inserted into each other. The distance between the first hook 21 and the second hook 22 can be adjusted by changing the insertion length, thereby achieving adaptation to battery modules of different specifications.

[0096] To facilitate adjustment, the inner rings of the first hook 21 and the second hook 22 are provided with a first rack 24 and a second rack 25 , which can be driven to move by rotating the adjustment gear 23 , thereby changing the distance between the first hook 21 and the second hook 22 .

[0097] Specifically, the rotating shaft of the adjusting gear is installed on the first partial frame or the second partial frame, and the portion of the rotating shaft exposed from the first partial frame and the second partial frame is installed with an adjusting handle.

[0098] The user drives the internal adjustment gear by turning the adjustment handle, thereby changing the distance between the first hook 21 and the second hook 22 .

[0099] like Figure 4As shown, the first and second partial frames 11, 12 have a slotted end plate, the interior space of which can accommodate the rack structure of the hook 2. The lower end is slotted to allow the hook to extend. To achieve better mechanical transmission, a lifting ring 13 can also be placed directly above the end plate to reduce the overturning torque.

[0100] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A transfer device suitable for multi-size power battery modules, characterized in that: Including main frame and hook; The main frame is rectangular in a top view and comprises a separable first and second partial frames; The first partial frame and the second partial frame are in a U shape when viewed from above; Both sides of the first partial frame and the second partial frame have matching guide rail structures; The first partial frame and the second partial frame are mounted together in opposite directions and slidably connected via the guide rail structure; The hooks are respectively arranged at opposite ends of the first partial frame and the second partial frame.

2. The transfer device according to claim 1, characterized in that The guide rail structure includes an inner guide rail structure and an outer guide rail structure that are separated from each other; The internal guide rail structure is in the shape of an elongated cube; The external guide rail structure is a sleeve-shaped structure, and the external guide rail structure is sleeved on the outside of the internal guide rail structure; A first fastening device is provided at a distal end point of the external guide rail structure.

3. The transfer device according to claim 2, characterized in that The outer guide rail structure is provided on the left side of the first partial frame; The inner guide rail structure is provided on the right side of the first part frame; The left side of the second part frame is provided with the inner guide rail structure; The outer guide rail structure is provided on the right side of the second partial frame.

4. The transfer device according to claim 1, characterized in that The main framework also includes: A telescopic adjustment structure, wherein the telescopic adjustment structure is mesh-shaped when viewed from above and includes a plurality of sliding rods; A first rotating shaft is provided at each end of each slide bar, and a second rotating shaft is provided at the midpoint of the slide bar; The sliding rods are arranged crosswise in a mesh shape, and the mutually crossed sliding rods are rotatably connected via the second rotating shaft; Two adjacent groups of the sliding rods are rotationally connected via the first rotating shaft.

5. The transfer device according to claim 4, characterized in that: A slide structure is also provided above the first partial frame and the second partial frame respectively; The first rotating shafts of the sliding rods located at the head end and the tail end are installed in the sliding groove structure to slide.

6. The transfer device according to claim 4, characterized in that: A first spring mounting seat is also provided above the first partial frame and the second partial frame respectively; The second rotating shaft of the sliding rod at the head end and the end end is respectively provided with a second spring mounting seat on one side close to the first partial frame or the second partial frame; A return spring is installed between the first spring mounting seat and the second spring mounting seat.

7. The transfer device according to claim 1, characterized in that The hook comprises a first hook, a second hook and an adjusting gear; A first U-shaped groove is provided at the upper end of the first hook, and a first rack is provided on the first inner side surface of the first U-shaped groove; The upper end of the second hook is provided with a second U-shaped groove, the second U-shaped groove is a hollow tube structure, and the first U-shaped groove is inserted into the second U-shaped groove; A second rack is provided on the second inner side surface of the second U-shaped groove; The adjusting gear matches the first rack and the second rack that are arranged opposite to each other.

8. The transfer device according to claim 7, characterized in that The rotating shaft of the adjusting gear is installed on the first partial frame or the second partial frame, and the portion of the rotating shaft exposed from the first partial frame and the second partial frame is installed with an adjusting handle.

9. The transfer device according to claim 1, characterized in that: Hanging rings are installed on the four corners of the main frame.

10. The transfer device according to claim 4, characterized in that: Insulation sheets are respectively installed on the lower surfaces of the first rotating shaft and the second rotating shaft.

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