Hoisting equipment for battery pack

Abstract

The utility model relates to the field of hoisting tools, in particular to hoisting equipment for a battery pack, which comprises a hoisting hole, a stiffening beam and a plurality of hoisting appliances which are matched for use, the plurality of hoisting holes are formed in the side wall surface of the battery pack; the reinforcing beam is in a long strip shape, and the reinforcing beam is bent in the width direction to form a plurality of right-angle turning grooves. The lifting appliances are in one-to-one correspondence with the lifting holes, each lifting appliance comprises a lifting rod and a limiting head which can be clamped into the lifting hole and is stressed by the reinforcing beam, the limiting head is fixedly arranged at one end part of the lifting rod, and a supporting rod is fixedly arranged between the limiting head and the lifting rod. The lifting appliance can be prevented from falling off during lifting, and the lifting stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of hoisting tools, in particular to hoisting equipment for battery packs. Background Art

[0002] With the popularity of new energy vehicles, the installed capacity of power batteries is also increasing. When installing power batteries, the assembled battery pack is hoisted to the target location for installation.

[0003] Due to the rapid development of power batteries, the structure of battery packs has become diversified. For example, some battery packs are directly connected to the vehicle body for assembly; and customer needs have become diversified. For example, some battery packs are supplied without hanging ears. Therefore, hoisting during production, assembly, and transportation is particularly critical. The existing hoisting device includes a frame and a latch assembly fixed on the frame for inserting into the vertical long hole position. The latch assembly includes a pin rod, a diameter-changing mechanism sleeved on the outside of the pin rod, and an elastic force-applying mechanism installed on the frame for applying force to the diameter-changing mechanism to change its diameter. The diameter-changing mechanism is configured so that after the latch assembly is inserted into the vertical long hole position, the diameter increases due to the force applied by the elastic force-applying mechanism, so that it can be stuck in the vertical long hole position and remain stuck.

[0004] Especially for the lifting of battery packs without hanging ears, the lifting is more difficult. During the lifting process, the existing device is very easy to slide and loosen, causing the battery pack without hanging ears to fall off. Utility Model Content

[0005] The utility model aims to provide a hoisting device for a battery pack, so as to solve the problem that the existing hoisting device is prone to sliding and loosening during the hoisting process, causing the battery pack without hanging ears to fall off.

[0006] The hoisting equipment for the battery pack in this solution includes supporting hoisting holes, reinforcing beams and several hoists;

[0007] A plurality of lifting holes are provided, and each lifting hole is opened on the side wall surface of the battery pack;

[0008] The reinforcing beam is in the shape of a long strip, and is bent in the width direction to form a plurality of right-angle turning grooves;

[0009] The sling corresponds to the lifting hole one by one, and includes a lifting rod and a limit head that can be inserted into the lifting hole and supported by a reinforcing beam. The limit head is fixed at one end of the lifting rod, and a support rod is fixed between the limit head and the lifting rod.

[0010] The beneficial effects of this program are:

[0011] When in use, the reinforcing beam is installed on the outer wall of the battery pack, and the reinforcing beam is located on the outer wall of the battery pack above the hoisting hole. Then the hoisting tool is passed through the hoisting hole and first contacts the top of the reinforcing beam under the limit of the hoisting hole, so that the reinforcing beam is stressed, and the hoisting hole is not used as a load-bearing point, which is not easy to deform and fail. The reinforcing beam of the battery pack in this hoisting structure is sufficient to bear the weight, thereby assuming the hoisting function, preventing it from falling off, and improving the stability of the hoisting.

[0012] Furthermore, the lifting hole includes three semicircular ports, and the semicircular ports are respectively located at 0°, 90° and 180° positions.

[0013] The beneficial effect is that the size of the lifting hole can facilitate the insertion of the limit head of the lifting device, and allow the support rod to contact the lifting hole for support.

[0014] Furthermore, the radius of the semicircular port is 6.75-6.95 mm, the vertical spacing between the centers of the semicircular ports at 0° and 90° is 9.5 mm, and the horizontal spacing between the centers of the semicircular ports at 0° and 180° is 27 mm.

[0015] The beneficial effect is that the size setting of the lifting hole can adapt to lifting tools of different sizes to improve the scope of application.

[0016] Furthermore, the width-wise cross section of the reinforcing beam is composed of two shapes, Ω and П, and the angles of each bend of the reinforcing beam are 90°.

[0017] The beneficial effect is that the shape of the reinforcing beam can be easily installed on the side wall of the battery pack and withstand the force of the hoisting device.

[0018] Furthermore, the width of the right-angle turning groove of the reinforcing beam is 21.5 mm, and the depth of the right-angle turning groove of the reinforcing beam is 20.4 mm.

[0019] The beneficial effect is that the size of the reinforcing beam is set so that the sling can contact the reinforcing beam to allow the reinforcing beam to bear the force.

[0020] Furthermore, a circular through hole is provided at the end of the suspension rod away from the limiting head, and the radius of the through hole is 10 mm.

[0021] The beneficial effect is that the through hole arrangement on the suspension rod can facilitate the stable installation of the suspension device during the lifting process.

[0022] Furthermore, the width of the suspension rod is 50 mm, and the length of the suspension rod is 170 mm.

[0023] The beneficial effect is that the size setting of the suspension rod can facilitate its use during the lifting process.

[0024] Furthermore, the limit head consists of a length of 27 mm and two semicircular ends with a radius of 6.25 mm.

[0025] The beneficial effect is that the limit head is relatively smooth and can be easily inserted into the lifting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of installation of a battery pack when hoisting the battery pack in an embodiment of the hoisting equipment for the battery pack of the utility model;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the reinforcing beam in the embodiment of the hoisting equipment for battery pack of the utility model;

[0028] Figure 3 This is a structural schematic diagram of a hoisting hole in an embodiment of a hoisting device for a battery pack of the utility model;

[0029] Figure 4 It is a three-dimensional structural diagram of a hoisting device in an embodiment of the utility model for a battery pack;

[0030] Figure 5 It is a three-view drawing of the lifting device in the embodiment of the lifting equipment for battery pack of the utility model. DETAILED DESCRIPTION

[0031] The following is further explained in detail through specific implementation methods.

[0032] The figure marks in the drawings of the specification include: reinforcing beam 1, lifting hole 2, lifting device 3, limit head 4, hanging rod 5, support rod 6, mounting hole 7, battery pack 8, through hole 9.

[0033] Example

[0034] Lifting equipment for battery packs, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: it includes supporting hoisting holes 2, reinforcing beams 1 and a plurality of hoisting tools 3. A plurality of hoisting holes 2 are provided, for example, six hoisting holes 2 are provided for hoisting control, and the hoisting holes 2 are opened on the side wall surface of the battery pack 8, and three hoisting holes 2 are provided on the two side wall surfaces of the battery pack 8 respectively.

[0035] The reinforcing beam 1 is in the shape of a long strip. The reinforcing beam 1 is bent in the width direction to form a plurality of right-angle turning grooves. The width-wise cross section of the reinforcing beam 1 is composed of two shapes, Ω and П, and the angles of each bending point of the reinforcing beam 1 are all 90°, that is, the reinforcing beam 1 is bent in the directions of vertical, right horizontal, vertical, left horizontal, vertical, right horizontal, vertical, and left horizontal, forming three recessed parts, of which the recessed part in the middle position is the center, and the other two recessed parts are symmetrically arranged, and the other two recessed parts are opposite to the opening direction of the recessed part in the middle, and a plurality of mounting holes 7 are provided on the bottom wall of the recessed parts on both sides of the middle position for easy use. The width of the right-angle turning groove of the reinforcing beam 1 is 21.5 mm, and the depth of the right-angle turning groove of the reinforcing beam 1 is 20.4 mm. The various size settings and shape settings of the reinforcing beam 1 can be inserted into a recessed position above the lifting hole of the battery pack 8 to bear the force.

[0036] The slings 3 correspond to the hanging holes 2 one by one, that is, there are six slings 3 for six hanging holes 2. The slings 3 include a hanging rod 5 and a limit head 4 that can be inserted into the hanging hole 2 and supported by the reinforcing beam 1. The limit head 4 is welded at one end of the hanging rod 5, and a support rod 6 is welded between the limit head 4 and the hanging rod 5. The hanging hole 2 includes three semicircular ports, which are respectively located at 0°, 90° and 180°. The radius of the semicircular port is 6.75-6.95mm, the vertical spacing of the semicircular port at the center of the circle at 0° and 90° is 9.5mm, and the horizontal spacing of the semicircular port at the center of the circle at 0° and 180° is 27mm.

[0037] like Figure 5 As shown, a circular through hole 9 is provided at the end of the suspension rod 5 away from the stopper head 4, and the radius of the through hole 9 is 10 mm. The width of the suspension rod 5 is 50 mm, and the length of the suspension rod 5 is 170 mm. The stopper head 4 is composed of two semicircular ends with a length of 27 mm and a radius of 6.25 mm.

[0038] When implementing it, Figure 1 As shown, the battery box is welded by sheet metal parts, and the welding process includes spot welding and laser arc welding. The lifting work is carried out by the matching lifting holes 2, lifting tools 3 and reinforcing beams 1. The lifting holes 2 are cut by laser, and the reinforcing beams 1 are only commonly used sheet metal profiles. In this lifting structure, the lifting holes 2 play a limiting role, and the reinforcing beams 1 play a supporting role, thereby achieving the lifting effect.

[0039] During hoisting, 4 or 6 pairs of hoists 3 are used to pass through the hoisting holes 2 on the side of the battery pack 8 and are fixed on the reinforcing beam 1, so as to quickly lift and complete the transportation of the battery pack 8.

[0040] The hoisting device 3 first contacts the top of the reinforcing beam 1 through the hoisting hole 2 under the limiting effect of the hoisting hole 2, so that the reinforcing beam 1 is subjected to force. In this way, the hoisting hole 2 does not serve as a load-bearing point and is not easily deformed or failed. The reinforcing beam 1 of the battery pack 8 of the hoisting structure is sufficient to bear the weight, thereby assuming the hoisting function.

[0041] Taking the existing battery pack 8 with a weight of 331 kg as an example, the lifting structure of the battery pack 8 adopts 4-point lifting and 6-point lifting, adopts the corresponding national standard, and the lifting simulation verification and the actual lifting verification are passed. The simulation results of the Z direction during the simulation are shown in Table 1.

[0042] Table 1 Z direction reverse result table

[0043]

[0044] The overall hoisting structure of this embodiment is simple, convenient, and highly reliable. It does not damage the battery pack 8 body, has high hoisting efficiency, is easy to meet, does not affect the outer envelope size of the battery pack 8, and occupies very little space of the battery pack 8 and the installation space of the whole vehicle battery pack 8. The hoisting structure has a low manufacturing cost, solves the problem of difficulty in hoisting without hanging ears, and improves the stability of hoisting without hanging ears.

[0045] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Lifting equipment for battery packs, characterized by: Including supporting lifting holes, reinforcing beams and several lifting tools; A plurality of lifting holes are provided, and each lifting hole is opened on the side wall surface of the battery pack; The reinforcing beam is in the shape of a long strip, and is bent in the width direction to form a plurality of right-angle turning grooves; The sling corresponds to the lifting hole one by one, and includes a lifting rod and a limit head that can be inserted into the lifting hole and supported by a reinforcing beam. The limit head is fixed at one end of the lifting rod, and a support rod is fixed between the limit head and the lifting rod.

2. The hoisting equipment for battery pack according to claim 1, characterized in that: The hanging hole includes three semicircular ports, which are respectively located at the positions of 0°, 90° and 180°.

3. The hoisting equipment for battery pack according to claim 2, characterized in that: The radius of the semicircular port is 6.75-6.95 mm, the vertical spacing between the centers of the semicircular ports at 0° and 90° is 9.5 mm, and the horizontal spacing between the centers of the semicircular ports at 0° and 180° is 27 mm.

4. The hoisting equipment for battery pack according to claim 1, characterized in that: The width-wise cross section of the reinforcing beam is composed of two shapes, Ω and П, and the angles of each bending point of the reinforcing beam are 90°.

5. The hoisting equipment for battery pack according to claim 4, characterized in that: The width of the right-angle turning groove of the reinforcing beam is 21.5 mm, and the depth of the right-angle turning groove of the reinforcing beam is 20.4 mm.

6. The hoisting device for battery pack according to claim 1, characterized in that: A circular through hole is provided at the end of the suspension rod away from the limiting head, and the radius of the through hole is 10 mm.

7. The hoisting equipment for battery pack according to claim 1, characterized in that: The width of the suspension rod is 50 mm, and the length of the suspension rod is 170 mm.

8. The hoisting device for battery pack according to claim 1, characterized in that: The limit head consists of a length of 27 mm and two semicircular ends with a radius of 6.25 mm.

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