Battery frame for pure electric loader

Abstract

The utility model discloses a battery frame for a pure electric loader, a battery pack is arranged in the battery frame, the battery frame is divided into an upper part, a middle part and a lower part, the upper part, the middle part and the lower part of the battery frame are mutually independent, and the upper part of the battery frame and the middle part of the battery frame are of a cubic cage type structure. The upper battery frame and the middle battery frame are mounted above a rear frame of the loading machine, the lower battery frame is of a tray type structure and mounted on a counterweight bin of the rear frame of the loading machine, modular design and an open structure are adopted, cost is low, strength is high, the structure is simple, maintenance is convenient, good battery heat dissipation is achieved, the working time is enough, and the service life of the loading machine is prolonged. And the working efficiency of the loader is greatly improved.

Description

Technical Field

[0001] The utility model relates to a battery frame, in particular to a battery frame for a pure electric loader. Background Art

[0002] As a new energy construction machinery, pure electric loaders replace traditional fuel engines with electric motors to provide kinetic energy, and the main energy source is the battery pack. However, due to the particularity of the loader's working conditions and operating capabilities, its power consumption is relatively large. In order to improve the loader's working time and work efficiency, it is often necessary to equip it with a large-capacity battery pack. However, large-capacity batteries are often accompanied by large volumes.

[0003] At present, the battery frame of pure electric loaders mainly adopts a box structure or a distributed structure. This structure is a semi-enclosed structure, which has a great impact on the heat dissipation of the battery, and the overall cost is high, and it is inconvenient to repair later. The space at the rear of the loader is extremely limited. How to reasonably use the limited space on the loader to arrange a larger battery pack is a problem that needs to be solved urgently. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a battery frame for a pure electric loader. The solution adopts a modular design and an open structure. It is not only low in cost, high in strength, simple in structure, and easy to maintain, but also has good battery heat dissipation and sufficient working time, thereby greatly improving the working efficiency of the loader.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a battery frame for a pure electric loader, a battery pack is installed in the battery frame, the battery frame is divided into three parts: upper, middle and lower parts, the upper, middle and lower battery frames are independent of each other, the upper battery frame and the middle battery frame are cubic cage structures, the upper battery frame and the middle battery frame are installed above the rear frame of the loader, and the lower battery frame is a tray-type structure, which is installed on the counterweight bin of the rear frame of the loader.

[0006] Furthermore, removable covers and fixing pins for fixing the lower battery frame are provided on both sides of the counterweight compartment of the rear frame.

[0007] Furthermore, the upper battery frame includes: an upper frame bottom plate, an upper cover assembly, columns, and an upper battery mounting layer. The upper cover assembly is fixed to the upper frame bottom plate by a plurality of the columns. At least one upper battery mounting layer is arranged between the upper cover assembly and the upper frame bottom plate and fixed on the columns. The upper frame bottom plate is fixed above the rear frame of the loader.

[0008] Furthermore, the upper battery mounting layer is a square structure, comprising: a crossbeam and an upper battery mounting base, a plurality of the crossbeams are mounted on adjacent columns in the upper battery frame, and both ends of the plurality of battery mounting bases are fixed on two crossbeams of the same upper battery mounting layer.

[0009] Furthermore, reinforcing rib plates are provided between the upper frame bottom plate and the columns, and between the upper cover assembly and the columns.

[0010] Furthermore, the middle battery frame includes: a middle frame bottom plate, a middle upper cover assembly, columns, and a middle battery mounting layer. The middle upper cover assembly is fixed above the middle frame bottom plate by a plurality of columns, and a plurality of middle battery mounting layers are arranged between the middle frame bottom plate and the middle upper cover assembly and fixed on the columns.

[0011] Furthermore, the central battery mounting layer is a square structure, including: a crossbeam and a central battery mounting base, a plurality of crossbeams are installed between adjacent columns in the central battery frame, and the central battery mounting base is installed on the plurality of crossbeams.

[0012] Furthermore, reinforcing rib plates are provided between the middle frame bottom plate and the columns, and between the middle upper cover assembly and the columns.

[0013] Furthermore, the lower battery frame includes: a counterweight bin bottom plate, a side plate, a lower lower battery mounting plate, a lower upper battery mounting plate, and a fixing seat. The three side plates are spaced apart and fixed on the counterweight bin bottom plate to form two battery mounting chambers. Multiple lower lower battery mounting plates are fixed on the bottoms of the two battery mounting chambers. Multiple lower upper battery mounting plates are installed on the three side plates. Two adjacent lower upper battery mounting plates are used to fix a group of batteries. Multiple fixing seats are installed on the tail of the counterweight bin bottom plate and cooperate with the lower upper battery mounting plate near the tail of the counterweight bin bottom plate to fix a group of batteries. Inspection ports are provided on the side panels on both sides.

[0014] Furthermore, the lower battery frame also includes: an articulated ear plate and a lifting ear plate. Multiple articulated ear plates and lifting ear plates are symmetrically fixed on both sides of the counterweight bin bottom plate. The installation position of the articulated ear plate corresponds to the fixing pins on both sides of the counterweight bin of the rear frame. The lifting ear plate is used to lift the lower battery frame.

[0015] The beneficial effects of the utility model are as follows: the battery frame adopts a modular design and an open structure, which is not only low in cost, high in strength, simple in structure, and convenient in maintenance, but also has good battery heat dissipation, thereby greatly improving the working efficiency of the loader. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the utility model;

[0018] Figure 3 Schematic diagram of the upper battery frame structure;

[0019] Figure 4 It is a schematic diagram of the middle battery frame structure;

[0020] Figure 5 It is a schematic diagram of the lower battery frame structure;

[0021] Figure 6 The schematic diagram of the battery pack installation structure is shown below;

[0022] In the figure: 1. rear frame; 11. counterweight bin; 12. cover plate; 13. fixing pin; 2. upper battery frame; 21. upper frame bottom plate; 22. upper cover assembly; 23. column; 24. crossbeam; 25. upper battery mounting base; 3. middle battery frame; 31. middle frame bottom plate; 32. middle cover assembly; 33. middle battery mounting base; 4. lower battery frame; 41. counterweight bin bottom plate; 42. side plate; 43. lower lower battery mounting plate; 44. lower upper battery mounting plate; 45. fixing seat; 46. hinged ear plate; 47. lifting ear plate; 5. bolt fasteners; 6. upper battery pack; 7. middle battery pack; 8. lower battery pack. Implementation

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the scope of the utility model.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] like Figure 1-2 As shown, a battery frame for a pure electric loader is installed with a battery pack, and the battery frame is divided into three parts: upper, middle and lower parts. The upper, middle and lower battery frames are independent of each other. The upper battery frame 2 and the middle battery frame 3 are cubic cage structures, and the upper battery frame 2 and the middle battery frame 3 are installed above the rear frame 1 of the loader. The lower battery frame 4 is a tray structure and is installed on the counterweight bin 11 of the rear frame 1 of the loader.

[0026] The battery pack installed on the upper battery frame 2 is the upper battery group 6, the battery pack installed on the middle battery frame is the middle battery group 7, and the battery pack installed on the lower battery frame 4 is the lower battery group 8.

[0027] There is a height difference between the installation positions of the upper battery frame 2 and the middle battery frame 3 .

[0028] The upper battery frame 2 and the middle battery frame 3 adopt a cubic cage structure, which not only ensures the structural performance of the battery frame, but also provides sufficient space to assemble the battery. The lower battery frame 4 is a tray structure, which not only increases the battery power of the whole machine, but also increases the operating stability of the whole machine, and also replaces the counterweight in the traditional loader.

[0029] Furthermore, a removable cover plate 12 and a fixing pin 13 for fixing the lower battery frame 4 are provided on both sides of the counterweight bin 11 of the rear frame 1. The fixing pin 13 provides strong support for the installation of the lower battery frame 4, and also increases the safety and reliability of the lower battery frame 4. The cover plate 12 is installed on both sides of the rear frame 1 by bolt fasteners 5, and the charging port of the battery pack in the lower battery frame 4 faces both sides.

[0030] like Figure 3 As shown, the upper battery frame 2 includes: an upper frame bottom plate 21, an upper cover assembly 22, columns 23, and an upper battery mounting layer. The upper cover assembly 22 is fixed to the upper frame bottom plate 21 by bolt fasteners 5 and a plurality of the columns 23. The columns 23 are welded to the upper frame bottom plate 21. The two upper battery mounting layers are arranged between the cover assembly and the upper frame bottom plate 21 and are fixed to the columns 23 by bolt fasteners 5. The upper frame bottom plate 21 is fixed above the rear frame 1 of the loader by bolt fasteners 5.

[0031] Furthermore, the upper battery mounting layer is a square structure, including: a cross beam 24 and an upper battery mounting base 25, and multiple cross beams 24 are installed on adjacent columns 23 in the upper battery frame 2 by bolt fasteners 5, and the two ends of multiple battery mounting bases are fixed to two cross beams 24 of the same upper battery mounting layer by bolt fasteners 5.

[0032] Furthermore, reinforcing ribs are provided between the upper frame bottom plate 21 and the column 23 and between the upper cover assembly 22 and the column 23 . The reinforcing ribs are fixed to the upper frame bottom plate 21 and the column 23 by welding, and the reinforcing ribs are fixed to the upper cover assembly 22 and the column 23 by bolt fasteners 5 .

[0033] like Figure 4As shown, the middle battery frame 3 includes: a middle frame bottom plate 31, a middle upper cover assembly 32, a column 23, and a middle battery mounting layer. The middle upper cover assembly 32 is fixed above the middle frame bottom plate 31 by bolt fasteners 5 and multiple columns 23. The middle frame bottom plate 31 and the columns 23 are welded together. The multiple middle battery mounting layers are arranged between the middle frame bottom plate 31 and the middle upper cover assembly 32, and are fixed to the columns 23 by bolt fasteners 5.

[0034] Furthermore, the middle battery mounting layer is a square structure, including: a cross beam 24 and a middle battery mounting base 33, multiple cross beams 24 are installed between adjacent columns 23 in the middle battery frame 3 by bolt fasteners 5, and the middle battery mounting base 33 is installed on the multiple cross beams 24 by bolt fasteners 5.

[0035] Furthermore, reinforcing ribs are provided between the middle frame bottom plate 31 and the column 23 and between the middle upper cover assembly 32 and the column 23 . The reinforcing ribs are fixed to the middle frame bottom plate 31 and the column 23 by welding, and the reinforcing ribs are fixed to the middle upper cover assembly 32 and the column 23 by bolt fasteners 5 .

[0036] like Figure 5 As shown, the lower battery frame 4 includes: a counterweight bin bottom plate 41, a side plate 42, a lower lower battery mounting plate 43, a lower upper battery mounting plate 44, and a fixing seat 45. The three side plates 42 are spaced apart and welded and fixed on the counterweight bin bottom plate 41 to form two battery mounting chambers. The four lower lower battery mounting plates 43 are welded and fixed on the bottoms of the two battery mounting chambers. A plurality of lower upper battery mounting plates 44 are welded and mounted on the three side plates 42. Two adjacent lower upper battery mounting plates 44 are used to fix the battery pack. A plurality of fixing seats 45 are mounted on the tail of the counterweight bin bottom plate 41 and cooperate with the lower upper battery mounting plate 44 near the tail of the counterweight bin bottom plate 41 to fix the battery pack. Inspection ports are provided on the side plates 42 on both sides. When repairing the lower battery frame 4, it is only necessary to remove the cover plate 12 to carry out the repair work, which greatly reduces the difficulty of repairing and maintaining the lower battery frame 4.

[0037] The lower lower battery mounting plate 43, the lower upper battery mounting plate 44, the middle battery mounting base 33, and the upper battery mounting base 25 are mounting plates for mounting batteries.

[0038] like Figure 6 As shown, in this example, a total of 6 battery packs are installed in the upper battery frame 2, a total of 3 battery packs are installed in the middle battery frame 3, and a total of 6 battery packs are installed in the lower battery frame 4. The lower battery frame 4 is fixed to the counterweight compartment 11 of the rear frame 1 by bolt fasteners 5.

[0039] Furthermore, the lower battery frame 4 also includes: an articulated ear plate 46 and a lifting ear plate 47. Multiple articulated ear plates 46 and lifting ear plates 47 are symmetrically fixed on both sides of the counterweight bin bottom plate 41. The installation position of the articulated ear plate 46 corresponds to the fixing pins 13 on both sides of the counterweight bin 11 of the rear frame 1. The lifting ear plate 47 is used to lift the lower battery frame 4.

[0040] This device places the lower battery frame at the original loader counterweight position, which can not only increase the total power of the loader, but also increase the operating stability of the loader. The structure is simple, high in strength and low in cost, and by rationally utilizing space, the height of the loader hood is reduced, the driver's field of vision is broadened, and good heat dissipation of the battery packs in each part is ensured. The key is that the subsequent maintenance and repair of the battery system is easy to operate, which greatly improves the work efficiency.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery frame for a pure electric loader, characterized in that: A battery pack is installed in the battery frame, and the battery frame is divided into three parts: upper, middle and lower. The upper, middle and lower battery frames are independent of each other. The upper battery frame and the middle battery frame are cubic cage structures. The upper battery frame and the middle battery frame are installed above the rear frame of the loader. The lower battery frame is a tray structure and is installed on the counterweight bin of the rear frame of the loader.

2. A battery frame for a pure electric loader according to claim 1, characterized in that: Both sides of the counterweight compartment of the rear frame are provided with detachable cover plates and fixing pins for fixing the lower battery frame.

3. A battery frame for a pure electric loader according to claim 1, characterized in that: The upper battery frame includes: an upper frame bottom plate, an upper cover assembly, columns, and an upper battery mounting layer. The upper cover assembly is fixed to the upper frame bottom plate through a plurality of the columns. At least one upper battery mounting layer is arranged between the upper cover assembly and the upper frame bottom plate and fixed on the columns. The upper frame bottom plate is fixed above the rear frame of the loader.

4. A battery frame for a pure electric loader according to claim 2, characterized in that: The upper battery mounting layer is a square structure, comprising: a crossbeam and an upper battery mounting base, wherein a plurality of the crossbeams are mounted on adjacent columns in the upper battery frame, and both ends of the plurality of battery mounting bases are fixed on two crossbeams of the same upper battery mounting layer.

5. A battery frame for a pure electric loader according to claim 4, characterized in that: Reinforcing rib plates are provided between the upper frame bottom plate and the columns, and between the upper cover assembly and the columns.

6. A battery frame for a pure electric loader according to claim 1, characterized in that: The central battery frame includes: a central frame bottom plate, a central upper cover assembly, columns, and a central battery mounting layer. The central upper cover assembly is fixed above the central frame bottom plate by a plurality of columns. The plurality of central battery mounting layers are arranged between the central frame bottom plate and the central upper cover assembly and fixed on the columns.

7. A battery frame for a pure electric loader according to claim 6, characterized in that: The central battery installation layer is a square structure, including: a crossbeam and a central battery installation base, a plurality of crossbeams are installed between adjacent columns in the central battery frame, and the central battery installation base is installed on the plurality of crossbeams.

8. A battery frame for a pure electric loader according to claim 7, characterized in that: Reinforcement ribs are provided between the middle frame bottom plate and the columns, and between the middle upper cover assembly and the columns.

9. A battery frame for a pure electric loader according to claim 2, characterized in that: The lower battery frame includes: a counterweight bin bottom plate, side plates, a lower lower battery mounting plate, a lower upper battery mounting plate, and a fixing seat. The three side plates are spaced apart and fixed on the counterweight bin bottom plate to form two battery mounting chambers. Multiple lower lower battery mounting plates are fixed on the bottoms of the two battery mounting chambers. Multiple lower upper battery mounting plates are installed on the three side plates. Two adjacent lower upper battery mounting plates are used to fix the battery pack. Multiple fixing seats are installed on the tail of the counterweight bin bottom plate and cooperate with the lower upper battery mounting plate near the tail of the counterweight bin bottom plate to fix the battery pack. Inspection ports are provided on the side panels on both sides.

10. A battery frame for a pure electric loader according to claim 9, characterized in that: The lower battery frame also includes: an articulated ear plate and a lifting ear plate. Multiple articulated ear plates and lifting ear plates are symmetrically fixed on both sides of the counterweight bin bottom plate. The installation position of the articulated ear plate corresponds to the fixing pins on both sides of the counterweight bin of the rear frame. The lifting ear plate is used to lift the lower battery frame.

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