A fast-charging LFP battery

Abstract

The utility model discloses a kind of fast-charging LFP batteries, including intermediate box, the end box is connected with upper and lower side of intermediate box, it is characterized in that, multiple fixed rings of two rows are provided in the inside of intermediate box, the cooperation sleeve is set in the fixed ring, fast-charging LFP battery is assembled in the cooperation sleeve, electrode assembly is provided in the end box, electrode assembly includes the fixed casing of being set in the upper and lower side of intermediate box, multiple elastic electrode structures are provided in the fixed casing of upper side, multiple rigid electrode structures are provided in the fixed casing of lower side, the periphery end face of intermediate box is additionally provided with multiple roller assemblies, utilize the second electric connection contact and end electrode piece form another electrode connection in the other end of fast-charging LFP battery, can be electrically connected for different height fast-charging LFP battery;So as to make the module generalization.

Description

Technical Field

[0001] This utility model relates to the field of LFP battery technology, specifically a fast-charging LFP battery. Background Technology

[0002] LFP batteries, also known as lithium iron phosphate batteries, have several drawbacks due to the variety of types available. For example, because LFP batteries come in various standardized capacity specifications, they are typically designed as cylindrical battery posts with positive and negative terminals. As the capacity changes, their length and diameter also change. Therefore, the integrated casing for different LFP batteries needs to be designed separately to accommodate multiple LFP battery packs. Using integrated casings of different sizes increases both design and manufacturing costs.

[0003] Furthermore, existing battery boxes are rigidly connected to the placement area after installation without any buffer structure, which affects structural stability. Also, they rely on manual handling during transportation, which is difficult and inconvenient due to the large overall weight of the battery boxes. Extensive research has been conducted on this issue. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fast-charging LFP battery that can solve the problems in the prior art.

[0005] This utility model is achieved through the following technical solution: A fast-charging LFP battery of this utility model includes an intermediate housing, with end housings connected to the upper and lower sides of the intermediate housing. The intermediate housing has multiple fixing rings arranged in two rows and multiple columns on its inner side. A matching sleeve is fitted inside each fixing ring, and a fast-charging LFP battery is assembled inside the matching sleeve. An electrode assembly is provided inside each end housing. The electrode assembly includes fixed housings disposed on the upper and lower sides of the intermediate housing. Multiple elastic electrode structures are disposed within the upper fixed housing, and multiple rigid electrode structures are disposed within the lower fixed housing. Multiple roller assemblies are also provided on the four outer faces of the intermediate housing.

[0006] Advantageously, the roller assembly includes a mounting plate, a cavity is provided in the mounting plate, movable grooves are provided at the upper and lower ends of the cavity, a connecting shaft is fixedly provided in the movable groove, and a plurality of elastic roller structures are fixedly provided on the outer surface of the connecting shaft.

[0007] Advantageously, the mounting plate has bolt holes at its upper and lower ends, bolts are installed in the bolt holes, and the movable groove has internal threaded holes at its upper and lower ends. The bolts pass through the bolt holes and are threadedly connected to the internal threaded holes.

[0008] Advantageously, the elastic roller structure includes a plurality of rollers fixedly disposed on the connecting shaft, the outer surface of the rollers being tightly fitted with rubber sleeves.

[0009] Advantageously, the outer surface of the roller is provided with a plurality of arc-shaped grooves, and the inner side of the rubber sleeve is provided with a plurality of protrusions. The protrusions and the rubber sleeve are made of elastic rubber material. The protrusions are elastically tightened in the arc-shaped grooves, so that the rubber sleeve is disposed on the outer surface of the roller.

[0010] Advantageously, the intermediate housing is provided with a plurality of grooves around its perimeter, and the roller assembly is installed and fixed in the grooves.

[0011] In a further technical solution, the upper and lower ends of the mating sleeve are provided with flanges, which abut against the upper and lower ends of the fixing ring.

[0012] In a further technical solution, the inner cavity of the sleeve is provided with a through hole running vertically through it, through which the fast-charging LFP battery passes.

[0013] In a further technical solution, a plurality of locking bolts are provided inside the fixed housing, and a plurality of threaded holes are provided on the upper and lower sides of the intermediate box. The locking bolts pass through the fixed housing and are threadedly engaged with the threaded holes.

[0014] In a further technical solution, the locking bolt in the lower fixed housing is fully tightened into the threaded hole, and the locking bolt abuts against the end wall of the threaded hole.

[0015] A further technical solution includes an elastic electrode structure comprising a plurality of first electrical contact points disposed within the fixed housing on the upper side, a conductive rod disposed at the bottom of the first electrical contact point, a sliding conductive rod slidably disposed on the outer surface of the conductive rod, and a spring elastically disposed between the top of the sliding conductive rod and the bottom of the first electrical contact point.

[0016] A further technical solution is that the rigid electrode structure includes a plurality of second electrical contact points disposed on the bottom of the fixed housing on the lower side, and an end electrode piece is disposed on one side of the second electrical contact point.

[0017] The beneficial effects of this utility model are: 1. By incorporating a flexible sliding conductive rod, while maintaining electrical connection between the sliding conductive rod, the conductive rod, and the first electrical contact point, one end of the fast-charging LFP battery can be pressed down using the sliding conductive rod. The second electrical contact point and the end electrode plate form another electrode connected to the other end of the fast-charging LFP battery. This allows for electrical connection to fast-charging LFP batteries of different heights, facilitating the standardization of the module and enabling the placement of various fast-charging LFP batteries of the same specification, resulting in lower cost and better performance.

[0018] Second, the use of roller assemblies creates a buffer structure around the battery box, isolating it from the installation space after the battery box is placed in the installation space, preventing the battery box from being directly and rigidly connected to the installation area. Furthermore, when personnel remove the battery box for handling, the rollers and rubber sleeves on the roller assembly can be used to make contact with the ground, facilitating pushing and moving, which is very convenient for handling. Attached Figure Description

[0019] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of a fast-charging LFP battery according to the present invention; Figure 2 for Figure 1 Schematic diagram of the internal structure of the middle and intermediate boxes; Figure 3 for Figure 2 A schematic diagram at point A in the middle; Figure 4 for Figure 2 A schematic diagram at point B in the middle; Figure 5 for Figure 2 A schematic diagram of the battery structure viewed from below; Figure 6 for Figure 1 A schematic diagram of the battery after the roller assembly has been installed. Figure 7 for Figure 6 Schematic diagram of the middle roller assembly; Figure 8 for Figure 7 A schematic diagram of the vertical cross-sectional structure of the middle roller assembly; Figure 9 for Figure 6 A schematic diagram of the upper view structure of the middle roller assembly; In the figure, there are: second electrical connector 11, first electrical connector 12, locking bolt 13, fixed housing 14, end box 15, intermediate box 16, threaded hole 21, fast-charging LFP battery 22, second electrical contact point 23, end electrode plate 25, first electrical contact point 31, conductive rod 32, sliding conductive rod 33, spring 34, fixing ring 41, mating sleeve 42, third electrical connector 51, groove 61, roller assembly 62, mounting plate 71, connecting shaft 72, roller 73, arc groove 74, movable groove 75, rubber sleeve 76, protrusion 77, bolt 78, bolt hole 79, and internal threaded hole 81. Detailed Implementation

[0021] like Figures 1-9 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationship of this utility model is consistent in the up, down, left, right, front, and back directions. A fast-charging LFP battery includes a middle housing 16, with end housings 15 detachably connected to the upper and lower sides of the middle housing 16. Bolts are installed inside the end housings 15, which are threadedly connected to the middle housing 16. Multiple fixing rings 41 arranged in two rows and multiple columns are arranged inside the middle housing 16. Matching sleeves 42 are fitted inside the fixing rings 41, and fast-charging LFP batteries 22 are assembled inside the matching sleeves 42. If one fast-charging LFP battery 22 has its positive terminal facing upwards, then the fast-charging LFP batteries 22 around it on the front, back, left, and right sides have their positive terminals facing downwards. Electrode assemblies are installed inside the end housings 15. Multiple roller assemblies 62 are also provided on the four sides of the middle housing 16. The roller assemblies 62 form an isolation around the middle housing 16, and after the battery is removed as a whole, the roller assemblies 62 can be used as wheels to assist personnel in moving the battery when in contact with the ground.

[0022] Advantageously, the roller assembly 62 includes a mounting plate 71, the mounting plate 71 has a cavity, the upper and lower ends of the cavity are provided with movable grooves 75, a connecting shaft 72 is fixedly provided in the movable grooves 75, and a plurality of elastic roller structures are fixedly provided on the outer surface of the connecting shaft 72.

[0023] Advantageously, the mounting plate 71 is provided with bolt holes 79 at its upper and lower ends, and bolts 78 are provided in the bolt holes 79. The movable groove 75 is provided with internal threaded holes 81 at its upper and lower ends. The bolts 78 pass through the bolt holes 79 and are threadedly connected to the internal threaded holes 81.

[0024] Advantageously, the elastic roller structure includes a plurality of rollers 73 fixedly disposed on the connecting shaft 72, and the outer surface of the rollers 73 is tightly fitted with rubber sleeves 76.

[0025] Advantageously, the outer surface of the roller 73 is provided with a plurality of arc-shaped grooves 74, and the inner side of the rubber sleeve 76 is provided with a plurality of protrusions 77. The protrusions 77 and the rubber sleeve 76 are made of elastic rubber material. The protrusions 77 are elastically tightened in the arc-shaped grooves 74, so that the rubber sleeve 76 is disposed on the outer surface of the roller 73.

[0026] Advantageously, the rollers 73 and arc-shaped grooves 74 at different positions have the same shape but different sizes. The rollers 73 and arc-shaped grooves 74 in the middle are the largest, while those on the upper and lower sides gradually decrease in size. For the rubber sleeves 76 and protrusions 77, all rubber sleeves 76 have the same diameter, but the size of their inner holes and protrusions 77 remains close to the size of the rollers 73. That is, the protrusions 77 and inner holes in the middle rubber sleeves 76 are the largest, while those on the upper and lower sides gradually decrease in size. This arrangement facilitates the insertion of the larger rubber sleeves 76 from the upper and lower sides, allowing them to tighten around the outer surfaces of the rollers 73 and arc-shaped grooves 74 in the middle position. Figure 9 As shown.

[0027] Advantageously, the intermediate housing 16 is provided with a plurality of grooves 61 around its perimeter, and the roller assembly 62 is installed and fixed in the grooves 61.

[0028] Advantageously, the upper and lower ends of the sleeve 42 are provided with flanges, which abut against the upper and lower ends of the fixing ring 41. The sleeve 42 has an inner hole that runs through it from top to bottom, through which the fast-charging LFP battery 22 passes. In specific installation, the inner hole size of the sleeve 42 can be specifically placed according to the different diameters of the fast-charging LFP battery 22, so as to stably install the fast-charging LFP battery 22 in the sleeve 42.

[0029] Advantageously, the electrode assembly includes a fixed housing 14 disposed on the upper and lower sides of the intermediate housing 16. The fixed housing 14 is provided with a plurality of locking bolts 13. The upper and lower sides of the intermediate housing 16 are provided with a plurality of threaded holes 21. The locking bolts 13 pass through the fixed housing 14 and are threadedly engaged with the threaded holes 21. The upper fixed housing 14 is provided with a plurality of elastic electrode structures, and the lower fixed housing 14 is provided with a plurality of rigid electrode structures. The locking bolts 13 in the lower fixed housing 14 are fully tightened in the threaded holes 21, and the locking bolts 13 are abutted against the end wall of the threaded holes 21.

[0030] Advantageously, the elastic electrode structure includes a plurality of first electrical contact points 31 disposed in the fixed housing 14 on the upper side, a conductive rod 32 disposed at the bottom of the first electrical contact point 31, a sliding conductive rod 33 slidably disposed on the outer surface of the conductive rod 32, a spring 34 elastically disposed between the top of the sliding conductive rod 33 and the bottom of the first electrical contact point 31, and the sliding conductive rod 33 is electrically connected to the positive or negative terminal of the fast-charging LFP battery 22.

[0031] Advantageously, the rigid electrode structure includes a plurality of second electrical contact points 23 disposed at the bottom of the fixed housing 14 on the lower side, and an end electrode piece 25 disposed on one side of the second electrical contact point 23, the end electrode piece 25 being electrically connected to the positive or negative electrode of the fast-charging LFP battery 22.

[0032] Advantageously, a first electrical connection piece 12 is provided on one side of the top fixed housing 14, and the first electrical connection piece 12 is electrically connected to the first electrical connection contact point 31 located on the front and rear sides of the end of the fixed housing 14. A plurality of second electrical connection pieces 11 are also provided on one side of the top fixed housing 14, and the second electrical connection pieces 11 electrically connect the left and right adjacent first electrical connection contact points 31. A plurality of third electrical connection pieces 51 are provided on one side of the bottom fixed housing 14, and the third electrical connection pieces 51 electrically connect the left and right adjacent second electrical connection contact points 23.

[0033] Example 1 Based on the aforementioned basic scheme, further limitations are imposed: Advantageously, when multiple fast-charging LFP batteries 22 form a series circuit, the first electrical connector 12 is electrically connected between the first electrical connection contacts 31 on the front and rear sides of the left end of the top fixed housing 14; the second electrical connector 11 is connected between the first electrical connection contacts 31 of the second and third columns, the fourth and fifth columns, and the sixth and seventh columns at the top of the fixed housing 14; the third electrical connector 51 is connected between the second electrical connection contacts 23 of the first and second columns, the third and fourth columns, the fifth and sixth columns, and the seventh and eighth columns at the bottom of the fixed housing 14; and the eighth column of first electrical connection contacts 31 located on the upper fixed housing 14 is connected to the positive and negative terminals of the power plug, thereby enabling power supply using the power plug.

[0034] Since connecting batteries in series is a common technique, there are many ways to invert the fast-charging LFP battery 22 and connect the electrodes to form a series circuit. In other words, the fast-charging LFP battery 22 can be electrically connected in series. Therefore, there are many specific methods, and not all of them will be listed here.

[0035] By screwing the lower fixed housing 14 to one side of the middle housing 16, and then using the multiple elastic electrodes provided inside the upper and lower middle housing 16, the fast-charging LFP battery 22 is pressed against the rigid electrode side, so that the elastic electrode and the rigid electrode can improve the stability of electrical connection with fast-charging LFP batteries 22 of different heights. Furthermore, by rotating the locking bolt 13 inside the upper fixed housing 14, the upper fixed housing 14 can be moved toward the fast-charging LFP battery 22.

[0036] When setting up the fast-charging LFP battery 22, it is necessary to set up the same type of fast-charging LFP battery 22. Since the sleeve 42 can be used to replace other specifications, and the elastic electrode and rigid electrode can make stable electrical connection for fast-charging LFP batteries 22 of different heights, the end box 15 and the middle box 16 can stably connect the fast-charging LFP battery 22 between the third electrical connection piece 51 and the first electrical connection contact point 31 when installing fast-charging LFP batteries 22 of other heights.

[0037] For fast-charging LFP batteries 22 of different diameters, a matching sleeve 42 that matches its outer diameter can be installed and snapped into the retaining ring 41. For the matching sleeve 42, the inner diameter that matches the fast-charging LFP battery 22 needs to be machined during manufacturing.

[0038] In the specific configuration, the end housing 15, the fixed housing 14, and the intermediate housing 16 are made of insulating materials.

[0039] After the battery box is placed into the installation space, the rubber sleeve 76 abuts against the installation space, serving as an isolation function.

[0040] After the battery is removed from the installation space, when it is moved on the ground, the battery box can be pushed and moved on the ground by using the rubber sleeve 76 to contact the ground.

[0041] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A fast-charging LFP battery, comprising an intermediate housing (16), wherein end housings (15) are connected to the upper and lower sides of the intermediate housing (16), characterized in that, The inner side of the intermediate housing (16) is provided with multiple fixing rings (41) arranged in two rows and multiple columns. A matching sleeve (42) is fitted inside the fixing ring (41). A fast-charging LFP battery (22) is assembled inside the matching sleeve (42). An electrode assembly is provided inside the end housing (15). The electrode assembly includes a fixed housing (14) arranged on the upper and lower sides of the intermediate housing (16). Multiple elastic electrode structures are arranged inside the upper fixed housing (14), and multiple rigid electrode structures are arranged inside the lower fixed housing (14). The elastic electrode structures and the rigid electrode structures are electrically connected to the fast-charging LFP battery (22) on one side of each other. Multiple roller assemblies (62) are also provided on the four sides of the intermediate housing (16).

2. The fast-charging LFP battery according to claim 1, characterized in that: The upper and lower ends of the sleeve (42) are provided with flanges, which abut against the upper and lower ends of the fixing ring (41).

3. The fast-charging LFP battery according to claim 1, characterized in that: The sleeve (42) has an inner hole that runs vertically through it, through which the fast-charging LFP battery (22) passes.

4. The fast-charging LFP battery according to claim 1, characterized in that: The fixed housing (14) is provided with a plurality of locking bolts (13), and the intermediate box (16) is provided with a plurality of threaded holes (21) on the upper and lower sides. The locking bolts (13) pass through the fixed housing (14) and are threadedly connected to the threaded holes (21).

5. A fast-charging LFP battery according to claim 4, characterized in that: The locking bolt (13) in the lower fixed housing (14) is fully tightened into the threaded hole (21), and the locking bolt (13) is abutted against the end wall of the threaded hole (21).

6. A fast-charging LFP battery according to any one of claims 1-5, characterized in that: The elastic electrode structure includes a plurality of first electrical contact points (31) disposed in the fixed housing (14) on the upper side. A conductive rod (32) is disposed at the bottom of the first electrical contact point (31). A sliding conductive rod (33) is slidably disposed on the outer surface of the conductive rod (32). A spring (34) is elastically disposed between the top of the sliding conductive rod (33) and the bottom of the first electrical contact point (31).

7. A fast-charging LFP battery according to any one of claims 1-5, characterized in that: The rigid electrode structure includes a plurality of second electrical contact points (23) disposed at the bottom of the fixed housing (14) on the lower side, and an end electrode plate (25) is disposed on one side of the second electrical contact point (23).

8. A fast-charging LFP battery according to any one of claims 1-5, characterized in that: The roller assembly (62) includes a mounting plate (71), a cavity is provided in the mounting plate (71), and movable grooves (75) are provided at the upper and lower ends of the cavity. A connecting shaft (72) is fixedly provided in the movable groove (75), and multiple elastic roller structures are fixedly provided on the outer surface of the connecting shaft (72).

9. A fast-charging LFP battery according to claim 8, characterized in that: The mounting plate (71) has bolt holes (79) at its upper and lower ends, and bolts (78) are installed in the bolt holes (79). The movable groove (75) has internal threaded holes (81) at its upper and lower ends. The bolts (78) pass through the bolt holes (79) and are threadedly connected to the internal threaded holes (81).

10. A fast-charging LFP battery according to claim 8, characterized in that: The elastic roller structure includes a plurality of rollers (73) fixedly mounted on the connecting shaft (72), and the outer surface of the rollers (73) is tightly fitted with rubber sleeves (76).

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