Agricultural machine battery system convenient to disassemble and assemble and agricultural machine

Abstract

The utility model discloses an agricultural machine battery system convenient to disassemble and assemble and an agricultural machine, the battery system comprises a battery box body, a hoisting matching assembly, a bottom beam and a fixed matching piece, the hoisting matching assembly is connected to the battery box body, the bottom beam is connected to the battery box body, the bottom beam is provided with a guide matching part, and the fixed matching piece is connected to the battery box body; the fixed matching piece is arranged on the bottom beam and provided with a pressing strip matching groove. According to the agricultural machine battery system convenient to disassemble and assemble, the fixed matching part is arranged on the bottom beam, so that the agricultural machine battery system can be conveniently matched with the pressing strip to be quickly assembled on the agricultural machine body, the agricultural machine battery system is also conveniently and quickly disassembled from the agricultural machine body, the agricultural machine battery system is convenient to disassemble and assemble, and the energy supply efficiency of agricultural machines is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric machinery, in particular to an agricultural machinery battery system and agricultural machinery which are convenient for disassembly and assembly. Background Art

[0002] With the progress of technology, various agricultural machineries are widely used in the process of agricultural production. For example, the application of agricultural machineries such as tillers, seeders, and harvesters has greatly reduced the cost of agricultural production and the labor intensity of agricultural practitioners. At present, traditional internal combustion engines (such as diesel engines, gasoline engines, etc.) are used as power sources for agricultural machineries to provide power for their operation. When the internal combustion engine is running, the fuel rate of the fuel (such as diesel, gasoline, etc.) is very low. The incomplete combustion of the fuel not only causes waste of the fuel itself, but also generates a large amount of harmful gases. On most agricultural machineries, the harmful gases generated by the internal combustion engine are directly discharged without any treatment, which makes the current agricultural machineries have many defects.

[0003] At present, with the rapid development of power equipment, as a device that consumes clean electric energy, electric agricultural machinery is increasingly valued for its cleanliness. Existing electric agricultural machinery includes an agricultural machinery main body and a battery box. The battery box is usually fixedly installed on the agricultural machinery main body and is not easy to disassemble and replace. The battery box can only be replenished by charging. When the agricultural machinery runs out of power, it cannot work and needs to be charged for a long time, which affects the work progress. Summary of the Utility Model

[0004] The utility model provides an agricultural machinery battery system and agricultural machinery which are convenient for disassembly and assembly, and improve the energy supply efficiency of agricultural machinery.

[0005] The utility model adopts the following technical solutions:

[0006] A first object of the present application is to provide an agricultural machinery battery system which is convenient for disassembly and assembly, including:

[0007] A battery box body;

[0008] A hoisting cooperation assembly, the hoisting cooperation assembly is connected to the battery box body;

[0009] A bottom beam, the bottom beam is connected to the battery box body, and a guiding cooperation part is arranged on the bottom beam;

[0010] A fixing cooperation piece, the fixing cooperation piece is arranged on the bottom beam, and the fixing cooperation piece has a pressing strip cooperation groove.

[0011] Optionally, the guiding cooperation part includes a rough guiding cooperation part arranged on the bottom beam, the rough guiding cooperation part extends longitudinally, and the rough guiding cooperation part has a guiding inclined surface.

[0012] Optionally, the guiding and mating part includes a fine guiding and mating part, and the fine guiding and mating part includes a jack formed on the bottom beam.

[0013] Optionally, the agricultural machinery battery system that is convenient for disassembly and assembly includes two bottom beams, and the two bottom beams are arranged on the battery box body at intervals;

[0014] Each of the rough guiding and mating parts and each of the fine guiding and mating parts are arranged at intervals in sequence along the length direction of the bottom beam.

[0015] Optionally, both the rough guiding and mating part and the fine guiding and mating part are arranged on the bottom surface of the bottom beam, and the fixing and mating part is arranged on the side surface of the bottom beam;

[0016] Wherein, the bottom surface and the side surface are perpendicular to each other.

[0017] Optionally, the fixing and mating part has a seat body and a hook part, the seat body is connected to the bottom beam, the hook part is connected to the seat body, and the hook part is formed with the pressing strip mating groove.

[0018] Optionally, the seat body is fixed to the bottom beam through a fastener.

[0019] Optionally, a thickened plate is welded on the side surface of the bottom beam, and a threaded groove is formed on the thickened plate;

[0020] One end of the fastener passes through the seat body and is threadedly connected to the threaded groove, and the cap body of the fastener is limited on the seat body.

[0021] Optionally, at least two fixing and mating parts are arranged on each bottom beam, and the fixing and mating parts are arranged at intervals in sequence along the length direction of the bottom beam.

[0022] The second object of the present application is to provide an agricultural machinery, including:

[0023] An agricultural machinery body, the agricultural machinery body has a guiding part and a pressing strip;

[0024] The above-mentioned agricultural machinery battery system that is convenient for disassembly and assembly, the guiding and mating part of the agricultural machinery battery system is in limit fit with the guiding part, the pressing strip penetrates through the pressing strip mating groove, and the pressing strip is detachably connected to the agricultural machinery body.

[0025] By adopting the above technical solutions, the present application has the following beneficial effects:

[0026] The agricultural machinery battery system that is convenient for disassembly and assembly of the present application can be conveniently and quickly assembled with the pressing strip on the agricultural machinery body by arranging the fixing and mating part on the bottom beam, and can also be quickly disassembled from the agricultural machinery body. The agricultural machinery battery system of the present application is convenient for disassembly and assembly, and improves the energy supply efficiency of the agricultural machinery.

[0027] The following further describes in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings. Description of the Drawings

[0028] As part of this application, the accompanying drawings are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not constitute an improper limitation of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0029] Figure 1 Shows a three-dimensional structural schematic diagram of the agricultural machinery battery system provided by the embodiment of this application;

[0030] Figure 2 Shows a partial structural schematic diagram of the agricultural machinery battery system provided by the embodiment of this application;

[0031] Figure 3 Shows a schematic diagram of the hoisting fitting of the hoisting cooperation group on the agricultural machinery battery system provided by the embodiment of this application in the deployed state;

[0032] Figure 4 Shows a bottom view of the agricultural machinery battery system provided by the embodiment of this application;

[0033] Figure 5 Shows a structural schematic diagram of the fixed fitting provided on the bottom beam of the agricultural machinery battery system provided by the embodiment of this application;

[0034] Figure 6 Shows a top view of the agricultural machinery battery system provided by the embodiment of this application;

[0035] Figure 7 Shows a schematic diagram of the cover body of the agricultural machinery battery system provided by the embodiment of this application in the separated state;

[0036] Figure 8 Shows a bottom view of the partial structure of the agricultural machinery battery system provided by the embodiment of this application;

[0037] Figure 9 Shows a partial structural schematic diagram of the agricultural machinery battery system provided by the embodiment of this application;

[0038] Figure 10 Shows an internal structural schematic diagram of the agricultural machinery battery system provided by the embodiment of this application;

[0039] Figure 11 Shows a structural schematic diagram of the water-cooling plate of the agricultural machinery battery system provided by the embodiment of this application;

[0040] Figure 12 The partial structural diagram of the water-cooling plate of the agricultural machinery battery system provided by the embodiment of the present application is shown;

[0041] Figure 13 The internal structural schematic diagram of the water-cooling plate of the agricultural machinery battery system provided by the embodiment of the present application is shown.

[0042] In the figure: 1. Battery box body; 11. Battery box shell; 111. Concave groove; 112. Opening; 12. Battery module; 121. End plate; 13. High-voltage box assembly; 14. Cover body; 141. Convex shell; 142. Flanging; 15. Sealing gasket; 16. Water-cooling plate; 16a. Inlet water flow channel; 16b. Outlet water flow channel; 16c. Water inlet; 16d. Water outlet; 161. Main board body; 1611. Middle board; 1612. Side board; 162. Front baffle; 163. Rear baffle; 164. Steel sleeve; 1641. Pipe body; 1642. Flange part; 165. Threaded sleeve; 17. Support plate; 18. Insulating board; 2. Lifting cooperation assembly; 21. Connecting plate; 211. Shaft body; 212. Limiting block; 213. Avoidance opening; 214. Magnetic attraction component; 22. Lifting cooperation part; 221. Sleeve; 222. Lifting cooperation board; 2221. Avoidance hole; 223. Locking cooperation part; 23. Elastic part; 3. Bottom beam; 31. Coarse guiding cooperation part; 32. Fine guiding cooperation part; 33. Thickened plate; 4. Fixed cooperation part; 41. Seat body; 42. Hook part; 5. Water-cooling unit; 6. Battery swapping connector; 7. DC / DC module; 8. Support box shell; 81. Bottom wall; 811. Concave shell part; 82. Top wall; 83. Side wall; 84. Bracket; 9. Connecting frame; 10. Water kettle.

[0043] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0045] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0046] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] Embodiment 1

[0048] See Figures 1 to 5 As shown, the embodiment of the present application provides an agricultural machinery battery system, which includes: a battery box body 1, a hoisting cooperation assembly 2, a bottom beam 3, and a fixing cooperation member 4. The hoisting cooperation assembly 2 is connected to the battery box body 1, the bottom beam 3 is connected to the battery box body 1, a guiding cooperation portion is provided on the bottom beam 3, the fixing cooperation member 4 is provided on the bottom beam 3, and the fixing cooperation member 4 has a pressing strip cooperation groove. A pressing strip can pass through the pressing strip cooperation grooves on each fixing cooperation member 4, and the pressing strip can be detachably fixed to the agricultural machinery vehicle body, thereby realizing the connection between the agricultural machinery battery system and the agricultural machinery vehicle body. When it is necessary to disassemble the agricultural machinery battery system, the connection structure between the pressing strip and the agricultural machinery vehicle body can be released to transport the agricultural machinery battery system.

[0049] The agricultural machinery battery system can be conveniently and quickly assembled with the pressing strip on the agricultural machinery vehicle body by providing the fixing cooperation member 4 on the bottom beam 3, and it is also convenient to be quickly disassembled from the agricultural machinery vehicle body. The disassembly and assembly of the agricultural machinery battery system of the present application are convenient, improving the energy supply efficiency of the agricultural machinery.

[0050] Two bottom beams 3 can be provided at the bottom of the battery box body 1. The two bottom beams 3 are arranged at intervals and in parallel. At least two fixing cooperation members 4 are respectively provided on each bottom beam 3. The fixing cooperation members 4 are in a hook shape. Each of the two bottom beams 3 corresponds to a pressing strip. The pressing strip can be pressed into the pressing strip cooperation grooves on each fixing cooperation member 4 on the bottom beam 3 from top to bottom at the same time, which is convenient for operation and has high disassembly and assembly efficiency.

[0051] In some possible implementation schemes, the guiding cooperation portion includes a rough guiding cooperation portion 31 provided on the bottom beam 3. The rough guiding cooperation portion 31 extends longitudinally, and the rough guiding cooperation portion 31 has a guiding inclined surface. The agricultural machinery vehicle body is provided with a rough guiding portion corresponding to the rough guiding cooperation portion 31. During the process of the battery box body falling from top to bottom under the traction of the crane into the agricultural machinery body, the guiding inclined surface of the rough guiding cooperation portion 31 can slide down along the rough guiding portion, and finally, under the guidance of the guiding portion, the agricultural machinery battery system accurately and stably seats at the set position. The rough guiding portion can be structures such as a frame or a metal frame strip. When the agricultural machinery battery system is installed in place, the rough guiding portion can be located inside the bottom beam 3.

[0052] In some possible embodiments, the guiding and mating part includes a precise guiding and mating part 32, and the precise guiding and mating part 32 includes a jack arranged on the bottom beam 3.

[0053] A precise guiding part is arranged on the agricultural machinery vehicle body. The precise guiding part can be a cylinder. During the process that the battery box body falls from top to bottom under the traction of the crane and into the agricultural machinery body, the guiding inclined surface of the rough guiding and mating part 31 can slide down along the rough guiding part to adjust the position of the battery box body 1, so that the cylinder can be smoothly inserted into the jack on the bottom beam 3, thereby precisely controlling the seating position of the agricultural machinery battery system.

[0054] In some possible embodiments, the agricultural machinery battery system includes two bottom beams 3. The two bottom beams 3 are arranged on the battery box body 1 at intervals, and each rough guiding and mating part 31 and each precise guiding and mating part 32 are arranged at intervals in sequence along the length direction of the bottom beam 3.

[0055] In some possible embodiments, both the rough guiding and mating part 31 and the precise guiding and mating part 32 are arranged on the bottom surface of the bottom beam 3, and the fixing and mating part 4 is arranged on the side surface of the bottom beam 3. Among them, the bottom surface and the side surface are perpendicular to each other. The fixing and mating part 4 is arranged on the side surface of the bottom beam 3, which can facilitate the cooperation with the pressing strip. The pressing strip can be connected to the corresponding position on the agricultural machinery vehicle through bolts.

[0056] In some possible embodiments, referring to Figure 5 As shown, the fixing and mating part 4 has a seat body 41 and a hook part 42. The seat body 41 is connected to the bottom beam 3, the hook part 42 is connected to the seat body 41, and the hook part 42 is formed with the pressing strip mating groove. The seat body is fixed to the bottom beam 3 through a fastener, and the fastener can be a bolt.

[0057] In some possible embodiments, a thickened plate 33 is welded on the side surface of the bottom beam 3. Threaded grooves are arranged on the thickened plate 33. One end of the fastener passes through the seat body 41 and is threadedly connected to the threaded groove, and the cap body of the fastener is limited on the seat body 41. The design of the thickened plate 33 provides space for arranging the threaded grooves, which facilitates the connection and assembly with the seat body 41.

[0058] In some possible embodiments, at least two fixing and mating parts 4 are arranged on each bottom beam 3, and the fixing and mating parts 4 are arranged at intervals in sequence along the length direction of the bottom beam 3. Thereby, the battery box body 1 can be fixed at the positions at both ends of the bottom beam 3, so that the overall force of the bottom beam 3 is balanced, the battery box body 1 is stable and will not be skewed, and the assembly structure strength and stability are improved.

[0059] An embodiment of the present application also provides an agricultural machine, including: an agricultural machine body and the above-mentioned agricultural machine battery system. The agricultural machine body has a guiding and mating portion and a pressing strip. The guiding and mating portion of the agricultural machine battery system is in limit mating with the guiding portion. The pressing strip penetrates through the pressing strip mating groove, and the pressing strip is detachably connected to the agricultural machine body. The assembly structure of the agricultural machine body of the agricultural machine and the agricultural machine battery system has been described in detail above. The agricultural machine body has an electronic control system, and the agricultural machine battery system can be electrically connected to the electronic control system to provide power for the agricultural machine to travel and work.

[0060] Embodiment 2

[0061] See Figures 1 to 3 As shown, an embodiment of the present application will describe the hoisting and mating assembly 2 in detail. It includes: a connecting plate 21 and a hoisting and mating member 22. The connecting plate 21 is used for connection and fixation. For example, the connecting plate 21 can be fixed to the outer wall of the battery box. The hoisting and mating member 22 is rotatably connected to the connecting plate 21. The hoisting and mating member 22 has an unfolded state and a folded state. In the unfolded state, see Figure 3 As shown, the hoisting and mating member 22 rotates to be perpendicular to the connecting plate 21. In the folded state, see Figure 1 As shown, the included angle between the hoisting and mating member 22 and the connecting plate 21 rotates to be less than a set value. For example, the hoisting and mating member 22 can rotate to fit on the outer surface of the battery box body 1 or fit on the connecting plate 21, or the hoisting and mating member 22 can rotate to be parallel to the connecting plate 21. The included angle between the hoisting and mating member 22 and the connecting plate 21 can be greater than or equal to 0 and less than 20 degrees.

[0062] The hoisting and mating assembly 2 of the present application has a folded state and an unfolded state. When it is necessary to hoist and transport the battery box, the hoisting and mating assembly 2 can be adjusted to the unfolded state to facilitate connection with the hoisting equipment. When it is not necessary to hoist the battery box, the hoisting and mating assembly 2 can be folded to avoid collision between the hoisting and mating member 22 and the outside world, improving safety.

[0063] In some possible implementation schemes, a shaft body 211 is provided on the connecting plate 21. The hoisting and mating member 22 has a sleeve 221 and a hoisting and mating plate 222. The sleeve 221 is rotatably sleeved on the shaft body 211. The hoisting and mating plate is connected to the sleeve 221. A hoisting and mating hole is provided on the hoisting and mating plate 222, which can facilitate connection with a crane and provide a crane lifting point. The hoisting and mating member 22 can rotate around the shaft body 211 through the sleeve 221 to adjust the hoisting and mating assembly 2 to the unfolded state or the folded state.

[0064] In some possible embodiments, two limiting blocks 212 are provided on the connecting plate 21, and the two limiting blocks 212 are arranged at intervals. The sleeve 221 is located between the two limiting blocks 212. Or rather, the sleeve 221 penetrates the space between the two limiting blocks 212, and the extending direction of the sleeve 221 is perpendicular to the arrangement direction of the two limiting blocks 212. The hoisting fitting 22 has a locking fitting portion 223, and the locking fitting portion 223 is at least provided on the sleeve 221. In the unfolded state, the hoisting fitting 22 rotates to be perpendicular to the connecting plate 21, and the hoisting fitting 22 translates along the shaft body 211, so that the locking fitting portion 223 moves between the two limiting blocks 212. The two limiting blocks 212 and the locking fitting portion 223 are in limiting cooperation to limit the rotation of the sleeve 221, so that the hoisting fitting plate 222 protrudes from the surface of the battery box body 1 and remains perpendicular to the connecting plate 21, which is convenient for connecting with hoisting equipment. The opposite surfaces of the two limiting blocks 212 can be flat surfaces, and the two sides of the locking fitting portion 223 can also be flat surfaces. In the unfolded state, the flat surfaces on both sides of the locking fitting portion 223 along the thickness direction of the hoisting fitting plate 222 are respectively in contact with or have a small gap with the flat surfaces of the two limiting blocks 212, so as to limit the hoisting fitting 22 to maintain the unfolded state. In the folded state, the hoisting fitting 22 translates along the shaft body 211, so that the locking fitting portion 223 disengages from the limiting space between the two limiting blocks 212, and the hoisting fitting 22 rotates and folds on the outer surface of the battery box body 1.

[0065] In some possible embodiments, the hoisting fitting assembly 2 includes an elastic member 23. The elastic member 23 is sleeved on the shaft body 211. One end of the elastic member 23 abuts against the sleeve 221, and the other end of the elastic member 23 abuts against one of the connecting plates 21. In the folded state, the hoisting fitting 22 and the limiting block 212 are in limiting cooperation, and the elastic member 23 is in a compressed state. In the state where the hoisting fitting 22 rotates to be perpendicular to the connecting plate 21, the elastic member 23 elastically releases and pushes the sleeve 221 to move along the shaft body 211, so that the locking fitting portion 223 moves between the two limiting blocks 212.

[0066] In the folded state, the hoisting fitting 22 and the connecting plate 21 are in limiting cooperation, and the elastic member 23 is in a compressed state. In the state where the hoisting fitting 22 rotates to be perpendicular to the connecting plate 21, the elastic member 23 elastically releases and pushes the hoisting fitting 22 upward, so that the locking fitting portion 223 moves between the two limiting blocks 212.

[0067] Two end seats can be provided on the connecting plate 21, and both ends of the shaft body 211 are respectively connected to the two end seats. The elastic member 23 can be a spring. The spring is sleeved on the shaft body 211, and both ends of the spring respectively abut against the lower end seat and the sleeve 221. When the hoisting fitting 22 is rotated to a state perpendicular to the connecting plate 21, the elastic member 23 elastically releases, pushing the sleeve 221 to move upward along the shaft body 211, so that the sleeve 221 contacts the upper end seat. At this time, the locking fitting portion 223 just moves between the two limiting blocks 212.

[0068] In some possible implementation manners, the locking fitting portion 223 extends along the hoisting fitting plate 222, and the locking fitting portion 223 is vertically connected to the locking fitting plate. In the folded state, the limiting block 212 is limited to the side of the locking fitting portion 223 away from the elastic member 23, and the elastic member 23 is in a compressed state.

[0069] In some possible implementation manners, an avoidance opening 213 is provided on the connecting plate 21. During the rotation of the hoisting fitting 22, the locking fitting portion 223 extends into the avoidance opening 213. The avoidance opening 213 avoids the locking fitting portion 223 during the rotation of the hoisting fitting 22, preventing interference between the locking fitting portion 223 and the connecting plate 21.

[0070] In some possible implementation manners, an avoidance hole 2221 is provided on the hoisting fitting plate 222. In the folded state, the limiting block 212 is received in the avoidance hole 2221. The limiting block 212 will not bump against the hoisting fitting plate 222 and will not block the rotation of the hoisting fitting 22.

[0071] In some possible implementation manners, a magnetic attraction component 214 is provided on the connecting plate 21. In the folded state, the hoisting fitting 22 approaches or contacts the magnetic attraction component. The magnetic attraction component and the hoisting fitting 22 are magnetically attracted to each other, so that the hoisting fitting 22 maintains the folded state and will not rotate and protrude from the surface of the battery box body 1, resulting in interference with external structures, thereby improving safety. The magnetic attraction component 214 can be a magnet.

[0072] The embodiment of the present application also provides an agricultural machinery battery system, including: a battery box body 1 and the above-mentioned hoisting fitting assembly 2. The connecting plate 21 of the hoisting fitting assembly 2 is fixedly connected to the surface of the battery box body 1. The connecting plate 21 can be welded to the surface of the battery box shell 11 of the battery box body 1, or the connecting plate 21 can also be connected to the battery box body 1 through fasteners.

[0073] In some possible embodiments, a plurality of lifting cooperation components 2 may be provided on the battery box body 1, and the respective lifting cooperation components 2 are respectively arranged on two opposite shell walls of the battery box body 1, which can facilitate the connection of lifting equipment and enable the battery box to be lifted smoothly.

[0074] In some possible embodiments, the surface of the battery box shell 11 of the battery box body 1 has a recessed groove, the connecting plate 21 is located in the recessed groove, and the connecting plate 21 is adhesively connected to the bottom wall of the recessed groove. In the folded state, at least a part of the lifting cooperation member 22 is embedded in the recessed groove, and in the unfolded state, the lifting cooperation member 22 extends out of the recessed groove. The setting of the recessed groove can facilitate the accommodation of the lifting cooperation member 22 and prevent the lifting cooperation member 22 from protruding too much from the surface of the battery box body 1, thus avoiding interference with the structures in the surrounding environment.

[0075] Embodiment Three

[0076] See Figure 6 and Figure 7 As shown, the embodiment of the present application further details an agricultural machinery battery system, including: a battery box shell 11, a battery pack, a high-voltage box assembly 13, and a cover body 14. The battery box shell 11 has a cavity and an opening 112 communicating with the cavity. The battery pack is arranged in the cavity, the high-voltage box assembly 13 is arranged in the cavity, the high-voltage box assembly 13 is electrically connected to the battery pack, at least a part of the structure of the high-voltage box assembly 13 is exposed at the opening 112, and the cover body 14 is detachably connected to the battery box shell 11. The cover body 14 is used to close or open the opening 112. The agricultural machinery battery system with convenient maintenance of the present application is provided with an opening 112 on the battery box shell 11, and the opening 112 is covered by the cover body 14. The cover body 14 is detachably arranged, so that the high-voltage box assembly 13 can be conveniently maintained.

[0077] In some possible embodiments, the cover body 14 includes a convex shell 141 and a flanging 142. The flanging 142 is connected to the opening edge of the convex shell 141, and the flanging 142 is detachably connected to the battery box shell 11. The convex shell 141 protrudes outward from the side away from the battery box shell 11, so as to increase the internal space of the battery box shell 11 and facilitate providing more space for accommodating the high-voltage box assembly 13.

[0078] In some possible embodiments, connection holes are provided on the edge of the battery box shell 11 at the opening 112, and a plurality of fasteners respectively pass through the flanging 142 and are connected to the connection holes. The fasteners can be screws. The stud of the screw passes through the flanging 142 and is connected to the connection hole, and the cap body of the screw is limited on the flanging 142. By using tools, the fasteners can be screwed to tighten or disassemble the fasteners.

[0079] In some possible embodiments, a gasket 15 is covered on the flanging 142. The rod of the fastener sequentially passes through the gasket 15 and the flanging 142 and is connected to the connection hole, and the cap of the fastener is limited on the gasket 15. The gasket 15 can be a flexible sheet such as rubber. The gasket 15 functions to seal the through hole on the fastener and the flanging 142. A gasket 15 can also be provided between the flanging 142 and the battery box housing 11 to seal the gap therebetween.

[0080] In some possible embodiments, an insulating plate 18 is adhesively connected to the inner wall of the convex housing 141. It functions to insulate and isolate the metal convex housing 141 and the high-voltage box assembly 13. The high-voltage box assembly 13 can include devices such as a relay, a fuse, a copper busbar, and a BMS. Among them, at least the BMS is exposed to the opening 112, facilitating the maintenance of the BMS.

[0081] In some possible embodiments, the opening 112 is located at the top of the battery box housing 11, and the high-voltage box assembly 13 is located between the opening 112 and the battery pack. The high-voltage box assembly 13 is located on top of each battery pack.

[0082] In some possible embodiments, the battery box housing 11 includes a plurality of plate bodies. The plate bodies are connected to each other, and the plate bodies enclose a cavity. The high-voltage box assembly 13 and the battery pack are both disposed in the cavity. Among them, the adjacent plate bodies are fully welded, improving the sealing performance of the agricultural machinery battery system and meeting the required sealing level.

[0083] In some possible embodiments, refer to Figure 8 As shown, the agricultural machinery battery system convenient for maintenance includes a water-cooling unit 5. The water-cooling unit 5 is connected to the outer surface of the battery box housing 11, and the water-cooling unit 5 is connected to the battery pack through a water-cooling pipeline. The water-cooling unit 5 is used to adjust the temperature of the battery pack.

[0084] The embodiment of the present application also provides an agricultural machinery at the same time, including: an agricultural machinery vehicle body and the above-mentioned agricultural machinery battery system. The agricultural machinery battery system is connected to the agricultural machinery vehicle body. The agricultural machinery body has an electric control system, and the agricultural machinery battery system can be electrically connected to the electric control system to provide power for the agricultural machinery to travel and work.

[0085] Embodiment 4

[0086] Refer to Figures 10 to 13 As shown, the present application describes the water-cooling plate 16 of the battery pack in detail, which includes: a water-cooling plate main body, a steel sleeve 164, and a threaded sleeve 165. The water-cooling plate main body has a plurality of first through holes and a plurality of second through holes. The steel sleeve 164 is inserted into the first through hole. The steel sleeve 164 has a through hole for the fastener to penetrate, and the threaded sleeve 165 is inserted into the second through hole.

[0087] The threaded sleeve 165 can be used to connect with the battery module 12 to fix the battery module 12 and the water-cooling plate 16, and the steel sleeve 164 is used to connect and fix the water-cooling plate 16 and the support plate 17 of the battery box. In this application, by providing the threaded sleeve 165 on the main body of the water-cooling plate, it is convenient to connect and fix the threaded sleeve 165 and the battery module 12. By providing the steel sleeve 164 on the main body of the water-cooling plate, it is convenient for the fastener to pass through the steel sleeve 164 to fix the water-cooling plate 16 on the support plate 17 inside the battery box shell 11. The fastener will not directly contact the water-cooling plate 16, preventing the water-cooling plate 16 from being squeezed and deformed and worn, improving the product reliability and extending the product life.

[0088] In some possible embodiments, the main body of the water-cooling plate includes: a main board body 161, a front baffle 162 and a rear baffle 163. The main board body 161 has a water channel cavity and openings at both ends of the water channel cavity. The front baffle 162 and the rear baffle 163 are respectively connected to both ends of the main board body 161 along the length direction. The front baffle 162 and the rear baffle 163 respectively block the openings at both ends of the main board body 161. The front baffle 162 and the rear baffle 163 are both provided with a first through hole and a second through hole. Thus, it is convenient for both the front baffle 162 and the rear baffle 163 on both sides of the main board body 161 to connect with the battery module 12, and it is also convenient for both the front baffle 162 and the rear baffle 163 to be fixed on the support plate 17 of the battery box.

[0089] In some possible embodiments, among the front baffle 162 and the rear baffle 163, the through hole of the steel sleeve 164 on one of them is a round hole, and the through hole of the steel sleeve 164 on the other is a long strip hole.

[0090] By providing a long strip hole on one of the front baffle 162 and the rear baffle 163, the manufacturing precision and assembly precision of the product are reduced. When the steel sleeve 164 on one side baffle is fixed to the connection hole on the support plate 17 through a fastener, the through hole of the steel sleeve 164 on the other side baffle is long strip-shaped, avoiding misalignment with the connection hole on the other side of the support plate 17. By adjusting the position of the fastener along the length direction of the through hole, it can be smoothly connected to the corresponding connection hole on the support plate 17.

[0091] In some possible embodiments, the main board body 161 includes a middle board 1611 and side boards 1612 located on both sides of the middle board 1611. Water channel cavities are provided in both the middle board 1611 and the side boards 1612. The water channel cavities of the middle board 1611 and the side boards 1612 are connected and communicated. The middle board 1611 and the side boards 1612 are fixed by laser welding. By dividing the main body into three boards, the area of a single board body is reduced, which is convenient for production. And the structure of each board welded by laser is firm, the weld seam is beautiful, with high strength and strong corrosion resistance.

[0092] In some possible embodiments, the front baffle 162 and the rear baffle 163 are respectively welded to the middle plate 1611 and the side plate 1612 by laser welding. Each structural member of the water-cooling plate 16 is welded by laser welding, which improves the overall quality of the product.

[0093] In some possible embodiments, as shown in Figure 12 FIG. 5, the steel sleeve 164 includes a pipe body 1641 and a flange portion 1642 connected to the end of the pipe body 1641. The flange portion 1642 fits on the surface of the water-cooling plate main body, and the pipe body 1641 passes through the first through hole. The rod body of the fastener passes through the pipe body 1641, and the cap body of the fastener is limited on the flange portion 1642. The fastener does not contact the water-cooling plate main body and will not cause wear to the water-cooling plate main body.

[0094] In some possible embodiments, the threaded sleeve 165 can be a nut or a spiral wire.

[0095] In some possible embodiments, as shown in Figure 13 FIG. 6, a plurality of partition ribs are arranged in the water channel cavity of the water-cooling plate main body to divide the water channel cavity into a plurality of inlet water channels 16a and outlet water channels 16b. Each inlet water channel 16a and each outlet water channel 16b are parallel to each other. The inlet water channels 16a and the outlet water channels 16b are connected. The water-cooling plate main body has a water inlet 16c and a water outlet 16d. The water inlet 16c is connected to each of the inlet water channels 16a, and the water outlet 16d is connected to each of the outlet water channels 16b. A plurality of inlet channels and a plurality of outlet channels are connected at one end of the water-cooling plate 16. The water flow path has few turns, small water flow resistance, and large water flow rate, improving the cooling efficiency.

[0096] The embodiment of the present application further provides a battery pack, including: the above-mentioned water-cooling plate 16 and a battery module 12. The battery module 12 has an end plate 121. One end of the connecting member passes through the end plate 121 and is threadedly connected to the threaded sleeve 165, and the other end of the connecting member is limited on the end plate 121.

[0097] The battery module 12 has a plurality of battery cells and two end plates 121. Each battery cell is arranged in sequence along the thickness direction. The two end plates 121 are respectively located on both sides of each battery cell. Longitudinal holes are provided on the end plates 121. The connecting member can be a long bolt. The screw rod of the connecting member passes through the longitudinal hole on the end plate 121 and is threadedly connected to the threaded sleeve 165, and the cap body of the long bolt is limited on the top of the end plate 121.

[0098] The embodiment of the present application also provides an agricultural machinery battery system, including: a battery box housing 11, a plurality of support plates 17 and a plurality of battery packs. The battery box housing 11 has a cavity. Each of the support plates 17 is disposed in the cavity, and the battery packs are supported on the support plates 17. One end of a fastener passes through a through hole of the steel sleeve 164 and is connected to the support plate 17, and the other end of the fastener is limited on the steel sleeve 164. The cap body of the fastener is in direct contact with the steel sleeve 164 and will not contact the main body of the water-cooling plate, so the main body of the water-cooling plate will not be worn. Its cap body contacts the steel sleeve 164, and the steel sleeve 164 is disposed through a first through hole, and the peripheral wall of the steel sleeve 164 fits with the inner wall of the first through hole, so that the main body of the water-cooling plate is subjected to balanced force and is not easily deformed.

[0099] Embodiment Five

[0100] See Figures 1 to 9 As shown, the embodiment of the present application further describes the agricultural machinery battery system, which includes: a battery box body 1, a bottom beam 3, a water-cooling unit 5 and a battery swapping connector 6. The battery box body 1 has a battery box housing 11 and battery packs, and the battery packs are disposed inside the battery box housing 11. A hoisting and mating assembly 2 is connected to the battery box housing 11. The bottom beam 3 is connected to the battery box body 1, and the bottom beam 3 is used for detachably connecting to an agricultural machinery vehicle body. The water-cooling unit 5 is located outside the battery box housing 11, and the water-cooling unit 5 is connected to the battery box housing 11. The water-cooling unit 5 is connected to the battery packs through a water-cooling pipeline. The battery swapping connector 6 is connected to the battery box body 1. The battery swapping connector 6 can be located at the bottom of the battery box body 1. The battery swapping connector 6 is electrically connected to the battery packs. In a state where the agricultural machinery battery system is installed on the agricultural machinery vehicle body, the battery swapping connector 6 is electrically connected to the agricultural machinery vehicle body. A connector corresponding to the battery swapping connector 6 is provided on the agricultural machinery vehicle body, and the connector and the battery swapping connector 6 can be a quick-insert structure, which facilitates connection. The connector can be electrically connected to the electronic control system of the agricultural machinery vehicle body, and the electronic control system of the agricultural machinery vehicle body is powered by the agricultural machinery battery system to provide driving power for the agricultural machinery vehicle body.

[0101] In some possible implementation schemes, the agricultural machinery battery system includes a DC / DC module 7. The input end of the DC / DC module 7 is electrically connected to the battery packs, and the output end of the DC / DC module 7 is electrically connected to the water-cooling unit 5. The DC / DC module 7 can convert the direct current of the battery packs and provide it to the water-cooling unit 5, so that the water-cooling unit 5 can operate normally.

[0102] In some possible embodiments, the agricultural machinery battery system includes a support housing 8, which is connected to the battery housing 11. The support housing 8 encloses an inner cavity, and the DC / DC module 7 is disposed in the inner cavity. The support housing 8 serves to protect the internal DC / DC module 7. The water-cooling unit 5 is supported on the support housing, and the water-cooling unit 5 is respectively connected to the support housing 8 and the battery housing 11. The support housing 8 has a dual function. In addition to accommodating and protecting the DC / DC module 7, it can also serve as a support structure to support the water-cooling unit 5 and increase the installation height of the water-cooling unit 5.

[0103] In some possible embodiments, heat dissipation holes are formed in the shell wall of the support housing 8, which is beneficial to the heat dissipation of the internal DC / DC module 7 and the power swapping connector 6 described below.

[0104] In some possible embodiments, referring to Figure 8 and Figure 9 as shown, the support housing 8 has a bottom wall 81, a top wall 82 and side walls 83. The bottom wall 81 and the top wall 82 are spaced apart, and the side walls 83 connect the top wall 82 and the bottom wall 81. At least one of the bottom wall 81, the top wall 82 and the side walls 83 is connected to the battery housing 11. The bottom wall 81, the top wall 82 and the side walls 83 enclose the inner cavity, and the heat dissipation holes are provided on the side walls 83. The side walls 83 have less occlusion. By providing the heat dissipation holes, the air circulation inside the support housing 8 can be accelerated.

[0105] In some possible embodiments, the agricultural machinery battery system includes a bracket 84, which is located in the inner cavity. The bracket 84 is connected to the bottom wall 81, and the DC / DC module 7 is disposed on the bracket 84.

[0106] The provision of the bracket 84 not only facilitates the installation of the DC / DC module 7, but also increases the installation height of the DC / DC module 7, which is beneficial to the heat dissipation of the DC / DC module 7.

[0107] In some possible embodiments, the bottom wall 81 has a recessed shell portion 811 that is recessed into the inner cavity. The recessed shell portion 811 forms an inner recess cavity, and the power swapping connector 6 is disposed in the inner recess cavity. At least part of the cable connecting the power swapping connector 6 is located in the inner cavity. The power swapping connector 6 is hidden in the inner recess cavity and does not protrude from the inner recess cavity, thereby serving to protect the power swapping connector 6. When the agricultural machinery battery system is supported on a support surface, the power swapping connector 6 will not contact the support surface, and the power swapping connector 6 will not be damaged or deformed under the action of the support surface. The electrical connector on the agricultural machinery vehicle body can be an outwardly protruding structure. When the agricultural machinery battery system is supported on the agricultural machinery vehicle body, the electrical connector is inserted into the inner recess cavity, and the electrical connector is electrically connected to the power swapping connector 6.

[0108] In some possible embodiments, referring to Figure 3 As shown, the agricultural machinery battery system includes a connecting frame 9 and a water kettle 10. The connecting frame 9 is connected to the top wall 82. The water kettle 10 is located between the connecting frame 9 and the water-cooling unit 5, and the water kettle 10 is fixed to the connecting frame 9. The water kettle 10 is connected to the water-cooling pipeline.

[0109] The embodiment of the present application also provides an agricultural machinery, including: an agricultural machinery body and the above-mentioned agricultural machinery battery system. The bottom beam 3 of the agricultural machinery battery system is detachably connected to the agricultural machinery body.

[0110] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above into equivalent embodiments with equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An agricultural machinery battery system that is easy to disassemble and assemble, characterized in that: include: Battery box body; A hoisting and fitting assembly, wherein the hoisting and fitting assembly is connected to the battery box body; A bottom beam, the bottom beam is connected to the battery box body, and a guide matching portion is provided on the bottom beam; A fixed fitting piece is arranged on the bottom beam, and the fixed fitting piece has a pressure strip fitting groove.

2. The conveniently disassembled agricultural machinery battery system according to claim 1 is characterized in that: The guide fitting portion comprises a rough guide fitting portion arranged on the bottom beam, the rough guide fitting portion extends in the longitudinal direction, and the rough guide fitting portion has a guide inclined surface.

3. The conveniently disassembled agricultural machinery battery system according to claim 2 is characterized in that: The guide fitting portion includes a precision guide fitting portion, and the precision guide fitting portion includes a socket arranged on the bottom beam.

4. The conveniently disassembled agricultural machinery battery system according to claim 3, characterized in that: It comprises two bottom beams, and the two bottom beams are arranged on the battery box body at intervals; The rough guide matching parts and the fine guide matching parts are sequentially arranged at intervals along the length direction of the bottom beam.

5. The conveniently disassembled agricultural machinery battery system according to claim 4, characterized in that: The rough guide matching part and the fine guide matching part are both arranged on the bottom surface of the bottom beam, and the fixed matching piece is arranged on the side surface of the bottom beam; Wherein, the bottom surface and the side surface are perpendicular to each other.

6. The conveniently disassembled agricultural machinery battery system according to claim 1, characterized in that: The fixing fitting has a seat body and a hook portion, wherein the seat body is connected to the bottom beam, the hook portion is connected to the seat body, and the pressure strip fitting groove is formed on the hook portion.

7. The conveniently disassembled agricultural machinery battery system according to claim 6, characterized in that: The seat body is fixed to the bottom beam by fasteners.

8. The conveniently disassembled agricultural machinery battery system according to claim 7, characterized in that: A thickened plate is welded on the side surface of the bottom beam, and a thread groove is arranged on the thickened plate; One end of the fastener passes through the seat body and is threadedly connected to the thread groove, and the cap body of the fastener is limited on the seat body.

9. The conveniently disassembled agricultural machinery battery system according to claim 1, characterized in that: At least two fixing fittings are arranged on each bottom beam, and the fixing fittings are arranged in sequence and spaced apart along the length direction of the bottom beam.

10. An agricultural machine, characterized in that: include: An agricultural machine body, the agricultural machine body having a guide portion and a pressure strip; According to the agricultural machinery battery system that is easy to disassemble and assemble as described in any one of claims 1-9, the guide matching part of the agricultural machinery battery system and the guide part are limitedly matched, the pressure strip passes through the pressure strip matching groove, and the pressure strip is detachably connected to the agricultural machinery body.

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