Battery frame structure for pure electric construction machinery

Abstract

The utility model discloses a kind of battery frame structures of pure electric engineering machinery, it belongs to engineering machinery technical field, it solves the single of existing frame structure, modularization level is low, it is difficult to meet the demand of different electric quantity, the frame of multiple modules is made to increase cost.It mainly includes frame, battery module is equipped on frame, battery module includes upper battery assembly and bottom battery assembly, bottom battery assembly is arranged in the inside of frame;Upper battery assembly includes upper frame, middle component and lower frame, and middle component includes several middle frames;Upper frame, middle component and lower frame are set from top to bottom and fixedly connected;Bottom battery assembly includes bottom frame and fixed base, and bottom frame is connected with fixed base.The utility model battery pack frame is satisfied to the demand of different electric quantity by using modularization design structure, that is, the different combination of electric quantity is realized by increasing and reducing battery frame and battery pack.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and more specifically, to a battery frame structure for pure electric engineering machinery. Background Technology

[0002] With the advancement and development of new energy technologies, electric loaders have increasingly higher requirements for different ranges. Adapting to different power needs through battery pack combinations is a major challenge. The rational arrangement of battery packs and electronic controls is a significant issue. Existing frame structures are simple and have low modularity, making it difficult to meet the needs of different power levels. Multi-module frames lead to increased manufacturing costs, increased difficulty in tooling processing, and relatively difficult installation, welding, and hoisting for workers. At the same time, the dispersed battery arrangement increases the need for heat dissipation pipes, high-voltage lines, and low-voltage lines between batteries, further increasing costs. Utility Model Content

[0003] The purpose of this utility model is to provide a battery frame structure for pure electric engineering machinery to solve the problems described in the background art.

[0004] This utility model is achieved through the following technical solution:

[0005] A battery frame structure for pure electric engineering machinery includes a frame with a battery module mounted on it. The battery module includes an upper battery assembly and a lower battery assembly, with the lower battery assembly located inside the frame. The upper battery assembly includes an upper frame, a middle component, and a lower frame. The middle component includes several middle frames connected vertically. The upper frame, middle component, and lower frame are arranged and fixedly connected from top to bottom. The lower frame includes a lower support and a lower plate. The lower battery assembly includes a lower frame and a fixed base, with the lower frame connected to the fixed base.

[0006] Furthermore, the lower support includes a lower mounting plate, on which a plurality of lower columns are fixedly connected; the bottom of the lower columns is provided with a lower fixing plate I, which is fixedly connected to the lower plate; the top of the lower columns is provided with a lower fixing plate II, which is fixedly connected to the intermediate frame.

[0007] Furthermore, several of the lower columns are provided with stiffening plates I, which connect two adjacent lower columns; the lower fixing plate II is provided with stiffening plates II, one side of which is fixedly connected to the lower fixing plate II, and the other side is fixedly connected to the lower column.

[0008] Furthermore, the lower plate is provided with lifting lugs and mounting holes.

[0009] Furthermore, the upper frame includes an upper plate, on which a controller mounting base is provided; the bottom of the upper plate is fixedly connected to the middle frame.

[0010] Furthermore, the intermediate frame includes a central mounting plate with several central columns; a central fixing plate is provided on each central column; adjacent central columns are connected by stiffening plates III; stiffening plates IV are fixed on the central mounting plate, and stiffening plates IV are fixedly connected to the central columns; the bottom of the central mounting plate is connected to the lower frame; and the central fixing plate is connected to the upper frame.

[0011] Furthermore, the bottom frame includes a left bottom frame and a right bottom frame; both the left bottom frame and the right bottom frame are fixed on a fixed base; the fixed base is provided with lifting lugs II.

[0012] Furthermore, the right bottom frame is provided with a right mounting plate, the bottom of the right mounting plate is provided with a right column, the bottom of the right column is provided with a right fixing plate and / or a right connecting plate, and the right bottom frame is fixed to the fixed base by the right fixing plate and / or the right connecting plate.

[0013] Furthermore, the left bottom frame includes a left mounting plate, with a left column on one side and a left connecting plate on the other side; the left column is connected to a left fixing plate, and the left bottom frame is connected to a fixed base through the left fixing plate; the left bottom frame is connected to the right bottom frame through the left connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model's battery pack frame adopts a modular design structure to meet different power requirements. Adding or removing the battery frame and battery pack allows for different power combinations. When a smaller power is needed, simply removing the corresponding intermediate frame and battery compresses the space, shrinking the overall structure and reducing the size of the top cover of the power battery frame, improving rear visibility while lowering cover costs. The bottom frame is divided into two modules, reducing manufacturing difficulty and saving on manufacturing tooling and lifting equipment costs. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the upper battery assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the lower support of this utility model;

[0019] Figure 4 This is a schematic diagram of the lower plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the upper plate of this utility model;

[0021] Figure 6This is a schematic diagram of the intermediate frame of this utility model;

[0022] Figure 7 This is a schematic diagram of the bottom battery assembly of this utility model;

[0023] Figure 8 This is a schematic diagram of the fixed base of this utility model;

[0024] Figure 9 This is a schematic diagram of the right bottom frame of this utility model;

[0025] Figure 10 This is a schematic diagram of the left bottom frame of this utility model.

[0026] In the diagram: 1. Upper battery assembly; 11. Motor controller; 12. Battery controller; 13. Upper frame; 131. Motor controller mounting base; 132. Battery controller mounting base; 133. Upper plate; 14. Middle frame; 141. Middle column; 142. Middle fixing plate; 143. Rib plate IV; 144. Rib plate III; 145. Middle mounting plate; 15. Lower bracket; 151. Lower mounting plate; 152. Lower column; 153. Rib plate I; 154. Lower fixing plate I; 155. Lower fixing plate II; 156. Rib plate II; 16. Lower plate; 161. Mounting hole; 162. Lifting lug I; 17. Upper battery pack; 18. Fastener I; 2. Frame; 3. Bottom battery assembly; 31. Bottom battery pack; 32. Right bottom frame; 321. Right connecting plate; 322. Right mounting plate; 323. Right upright; 324. Right fixing plate; 33. Left bottom frame; 331. Left connecting plate; 332. Left mounting plate; 333. Left fixing plate; 334. Left upright; 34. Fixing base; 341. Fixing hole; 342. Lifting lug II; 35. Fastener II. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, the directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the creation of this utility model.

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Example 1: A battery frame structure for a pure electric engineering machine, such as... Figures 1-10As shown, the vehicle includes a frame 2, on which a battery module is mounted. The battery module includes an upper battery assembly 1 and a bottom battery assembly 3, with the bottom battery assembly 3 disposed inside the frame 2. The upper battery assembly 1 includes an upper frame 13, a middle component, and a lower frame. The middle component includes several middle frames 14, which are connected vertically. The upper frame 13, the middle component, and the lower frame are arranged and fixedly connected from top to bottom. The lower frame includes a lower bracket 15 and a lower plate 16. The bottom battery assembly 3 includes a bottom frame and a fixed base 34, with the bottom frame connected to the fixed base 34.

[0030] The lower plate 16 is at the bottom. The two upper battery packs 17 are first fixed to the lower plate 16 with bolts. Then, the lower bracket 15 is fixed to the lower plate 16 and fastened with fastener I 18. Then, the second upper battery pack 17 is placed on the lower mounting plate 151 on the lower bracket 15 and fixed. Then, the middle frame 14 is installed on the lower fixing plate of the lower bracket 15 and fixed with fastener I 18. The third upper battery pack 17 is fixed to the middle mounting plate 145 of the middle frame 14 with bolts. Finally, the upper frame 13 is fastened to the middle fixing plate 142 of the middle frame 14 with fastener I 18. Finally, the motor controller and battery controller 12 are fixed to the upper plate 133.

[0031] The modules are installed layer by layer, and the modular design allows for a reduction in battery capacity by removing the middle frame 14 and the battery in this layer, meeting customers' needs for small-capacity, low-cost models. When users need a large-capacity battery, the battery capacity can be increased by adding the middle frame 14 and the battery pack, meeting the needs for large-capacity, long-lasting battery use.

[0032] Example 2: A battery frame structure for a pure electric engineering machine, such as... Figure 3 As shown, the lower support 15 includes a lower mounting plate 151, on which a plurality of lower columns 152 are fixedly connected; the lower columns 152 have a lower fixing plate I 154 at their bottom, which is fixedly connected to the lower plate 16; the lower columns 152 have a lower fixing plate II 155 at their top, which is fixedly connected to the intermediate frame 14. The plurality of lower columns 152 are provided with stiffening plates I 153, which connect two adjacent lower columns 152; the lower fixing plate II 155 is provided with stiffening plates II 156, one side of which is fixedly connected to the lower fixing plate II 155, and the other side is fixedly connected to the lower column.

[0033] The lower mounting plate 151 is welded to the reinforcing rectangular tube for fixing the battery pack. The reinforcing rectangular tube penetrates the lower column 152 to ensure overall strength. At the same time, the stiffening plate I 153 connects two adjacent lower columns 152 in sequence, and welding is used to ensure strength and prevent welding deformation. The lower column 152 and the stiffening plate II 156 are welded to the lower fixing plate. The lower fixing plate has mounting holes 161 for fixing to the lower plate 16. The lower fixing plate II 155 is welded to the lower column 152. The lower fixing plate II 155 has fixing threaded holes for fixing the intermediate frame 14. The components in the lower bracket 15 are welded together. The overall structure has high strength and simple structure, which is suitable for modular design.

[0034] like Figure 4 As shown, the lower plate 16 is provided with lifting lugs I 162 and mounting holes 161. The lower plate 16 is designed with mounting holes 161 for installing batteries and fixing holes 341 for connecting with the lower bracket 15. At the same time, lifting lugs I 162 are designed at the front and rear and welded to the lower plate 16 for lifting the upper battery assembly 1. After the sub-assembly is completed, the entire upper battery assembly 1 can be lifted at one time.

[0035] like Figure 5 As shown, the upper frame 13 includes an upper plate 133, on which a controller mounting base is provided; the controller mounting base includes a motor controller mounting base 131 and a battery controller mounting base 132; the bottom of the upper plate 133 is fixedly connected to the middle frame 14.

[0036] A controller mounting base is fixed on the motor controller mounting base 131, and an upper battery controller 12 is fixed on the battery controller mounting base 132. The motor controller mounting base 131 and the battery controller mounting base 132 are welded to the lower plate 16. The bottom of the lower plate 16 is provided with horizontal and vertical stiffeners to ensure the overall strength. At the same time, fixing holes 341 are designed around the perimeter to fix it to the middle fixing plate 142 of the middle frame.

[0037] like Figure 6 As shown, the intermediate frame 14 includes a central mounting plate 145, on which a plurality of central columns 141 are provided; a central fixing plate 142 is provided on the central columns 141; adjacent central columns 141 are connected by stiffening plates III 144; stiffening plates IV 143 are fixed on the central mounting plate 145, and the stiffening plates IV 143 are fixedly connected to the central columns 141; the bottom of the central mounting plate 145 is connected to the lower frame; and the central fixing plate 142 is connected to the upper frame 13.

[0038] The central column 141 is welded to the central mounting plate 145. The mounting plate is designed with fixing holes 341 for fixing to the lower fixing plate on the lower bracket 15. The bottom of the central mounting plate 145 is provided with horizontal and vertical reinforcing rectangular tubes to ensure overall strength. Connecting rectangular tubes and stiffening plates III 144 are designed between adjacent central columns 141 to prevent the central columns 141 from welding deformation. At the same time, stiffening plates IV 143 are provided between each central column 141 and the connecting rectangular tube, and between the central column 141 and the central mounting plate 145 to prevent deformation. A central fixing plate 142 is set at the top of the central column 141. The central fixing plate 142 has positioning holes for fixing the upper frame 13. All components are welded together, and the welding is firm and reliable.

[0039] like Figure 7 As shown, the bottom frame includes a left bottom frame 33 and a right bottom frame 32; both the left bottom frame 33 and the right bottom frame 32 are fixed to the fixed base 34; the fixed base 34 is provided with lifting lugs II 342. Figure 8 As shown, the base plate of the fixed base 34 has a fixing hole 341 at the front and the bent plate of the fixed base 34 also has a fixing hole 341. The front and rear fixing holes 341 are connected to the front and rear parts of the frame 2 with bolts to ensure the reliability of the installation. At the same time, four lifting lugs II 342 are provided. Two of them are connected to the frame 2 and the lifting lugs II 342 with pins to prevent the bottom battery assembly 3 from falling off when the front and rear bolts fail. The four lifting lugs II 342 can also be used as lifting holes to ensure the lifting of the entire bottom battery assembly 3.

[0040] First, a set of bottom battery packs 31 are bolted to the fixed base 34. Then, the right bottom frame 32 is fixed to the fixed base 34 using fastener II. The left bottom frame 33 is fixed to the fixed base 34 at one end using fastener II 35, and the other end is fixed to the right bottom frame 32. Dividing the bottom frame into two modules reduces manufacturing difficulty and saves on manufacturing tooling and lifting costs. Finally, the upper set of bottom battery packs 31 are bolted to the bottom frame, and then another set of bottom battery packs 31 are bolted to the left bottom frame 33.

[0041] like Figure 9 As shown, the right bottom frame 32 is provided with a right mounting plate 322, the bottom of the right mounting plate 322 is provided with a right column 323, the bottom of the right column 323 is provided with a right fixing plate 324 and / or a right connecting plate 321, and the right bottom frame 32 is fixed to the fixed base 34 by the right fixing plate 324 or the right connecting plate 321.

[0042] The bottom of the right mounting plate 322 is provided with a right column 323 to ensure the installation space of the bottom battery pack 31. The bottom of the right mounting plate 322 is provided with reinforcing ribs and small ribs to ensure overall strength. A connecting rectangular tube is designed between adjacent right columns 323 to prevent deformation.

[0043] like Figure 10As shown, the left bottom frame 33 includes a left mounting plate 332, a left column 334 on one side of the left mounting plate 332, and a left connecting plate 331 on the other side; the left column 334 is connected to a left fixing plate 333, and the left bottom frame 33 is connected to a fixed base 34 through the left fixing plate 333; the left bottom frame 33 is connected to the right bottom frame 32 through the left connecting plate 331.

[0044] The bottom of the left mounting plate 332 has a left column 334 on one side and a left connecting plate 331 on the other side. The bottom of the left mounting plate 332 is equipped with reinforcing ribs and small ribs. The components are welded together to ensure overall strength. A connecting rectangular tube is designed between adjacent left columns 334 to prevent deformation.

[0045] Everything else is the same as in Example 1.

[0046] This utility model adopts a modular design, divided into upper and lower parts. The upper battery assembly 1 is hoisted as a whole, making installation convenient. The upper battery uses an integrated shock absorption system to prevent excessive impact on the battery. The battery capacity can be increased or decreased by adding or removing batteries and frames to meet the needs of different users for different capacity sizes. At the same time, the connections between the frames are simple and easy to install. The external overall structure adopts a sealed structure to ensure the battery's airtightness, providing dustproof, waterproof, and a certain degree of heat preservation. The bottom mounting bracket can also increase or decrease the battery capacity by adding or removing the left bottom frame 33 and the right bottom frame 32. Installation and disassembly are convenient. The bottom battery frame is divided into two parts for easy assembly and disassembly, reducing manufacturing difficulty and saving costs. At the same time, reducing the bottom battery can increase the loader's climbing ability.

[0047] The upper and lower battery assembly modules are arranged compactly, as are the wiring harnesses and conduits, reducing their length. They are also positioned at the rear of the unit to act as a counterweight, eliminating the need for additional counterweights to meet overall performance requirements.

[0048] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A battery frame structure for a pure electric engineering machinery, comprising a frame (2) on which a battery module is mounted, characterized in that: The battery module includes an upper battery assembly (1) and a bottom battery assembly (3), with the bottom battery assembly (3) located inside the frame (2). The upper battery assembly (1) includes an upper frame (13), an intermediate component, and a lower frame. The intermediate component includes several intermediate frames (14), which are connected vertically. The upper frame (13), the intermediate component, and the lower frame are arranged and fixedly connected from top to bottom. The lower frame includes a lower bracket (15) and a lower plate (16). The bottom battery assembly (3) includes a bottom frame and a fixed base (34), with the bottom frame connected to the fixed base (34).

2. The battery frame structure for pure electric engineering machinery according to claim 1, characterized in that: The lower support (15) includes a lower mounting plate (151), on which a plurality of lower columns (152) are fixedly connected; the lower columns (152) are provided with a lower fixing plate I (154) at the bottom, and the lower fixing plate I (154) is fixedly connected to the lower plate (16); the lower columns (152) are provided with a lower fixing plate II (155) at the top, and the lower fixing plate II (155) is fixedly connected to the intermediate frame (14).

3. The battery frame structure for pure electric engineering machinery according to claim 2, characterized in that: The lower columns (152) are provided with stiffening plates I (153), which connect two adjacent lower columns (152); the lower fixing plate II (155) is provided with stiffening plates II (156); one side of the stiffening plate II (156) is fixedly connected to the lower fixing plate II (155), and the other side is fixedly connected to the lower column (152).

4. The battery frame structure for pure electric engineering machinery according to claim 2, characterized in that: The lower plate (16) is provided with a lifting lug I (162) and a mounting hole (161).

5. The battery frame structure of the pure electric engineering machinery according to claim 1, characterized in that: The upper frame (13) includes an upper plate (133), on which a controller mounting base is provided; the bottom of the upper plate (133) is fixedly connected to the middle frame (14).

6. The battery frame structure of the pure electric engineering machinery according to claim 1, characterized in that: The intermediate frame (14) includes a central mounting plate (145), on which a plurality of central columns (141) are provided; a central fixing plate (142) is provided on the central columns (141); adjacent central columns (141) are connected by stiffening plates III (144); a stiffening plate IV (143) is fixed on the central mounting plate (145), and the stiffening plate IV (143) is fixedly connected to the central columns (141); the bottom of the central mounting plate (145) is connected to the lower frame; and the central fixing plate (142) is connected to the upper frame (13).

7. The battery frame structure of the pure electric engineering machinery according to claim 1, characterized in that: The bottom frame includes a left bottom frame (33) and a right bottom frame (32); both the left bottom frame (33) and the right bottom frame (32) are fixed on a fixed base (34); the fixed base (34) is provided with a lifting lug II (342).

8. The battery frame structure of the pure electric engineering machinery according to claim 7, characterized in that: The right bottom frame (32) is provided with a right mounting plate (322), the bottom of the right mounting plate (322) is provided with a right column (323), the bottom of the right column (323) is provided with a right fixing plate (324) and / or a right connecting plate (321), and the right bottom frame (32) is fixed to the fixed base (34) by the right fixing plate (324) and / or the right connecting plate (321).

9. The battery frame structure for pure electric engineering machinery according to claim 8, characterized in that: The left bottom frame (33) includes a left mounting plate (332), a left column (334) on one side of the left mounting plate (332) and a left connecting plate (331) on the other side; the left column (334) is connected to a left fixing plate (333), and the left bottom frame (33) is connected to a fixed base (34) through the left fixing plate (333); the left bottom frame (33) is connected to the right bottom frame (32) through the left connecting plate (331).

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