New energy vehicle power battery pack mounting assembly and battery replacing method

Abstract

The invention discloses a new energy vehicle power battery pack mounting assembly and a battery replacing method.The new energy vehicle power battery pack mounting assembly comprises a fixing frame and a battery pack body, a plurality of side sliding blocks moving longitudinally are arranged on the two sides of the fixing frame, and clamping blocks moving vertically are arranged at the positions, corresponding to the side sliding blocks, of the two sides of the fixing frame; at least two parallel push rods are arranged between the side faces, facing each other, of the side sliding block and the clamping block in a hinged mode. According to the new energy vehicle power battery pack mounting assembly and the battery replacing method, assembly of bolts is simplified, the battery pack body is fixed in a side clamping assembly mode, and the battery replacing speed and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy battery pack, in particular, to a new energy vehicle power battery pack mounting assembly and a battery replacement method. BACKGROUND

[0002] The new energy vehicle power battery pack is installed on the vehicle to provide power for driving the vehicle. The existing new energy vehicle power battery pack mounting assembly structure includes a battery pack body and a mounting frame for fixing the battery pack body, and the two are usually connected by bolts.

[0003] In order to shorten the charging time of the battery pack body, a battery replacement method is used, that is, the battery pack body is replaced as a whole, and the fully charged battery pack body is replaced with the low battery pack body on the vehicle. During the replacement process, the bolts need to be disassembled and installed.

[0004] During the disassembly and installation of the bolts, a more complicated bolt pose calibration operation is required. In addition to the time for disassembling and installing the bolts, the total time for battery replacement will also increase. SUMMARY

[0005] The purpose of the present application is to provide a new energy vehicle power battery pack mounting assembly and a battery replacement method, which simplifies the assembly of the bolts, fixes the battery pack body by a side clamping assembly, and increases the battery replacement speed and efficiency.

[0006] In order to achieve the above purpose, the present application provides a new energy vehicle power battery pack mounting assembly, which comprises a fixed frame and a battery pack body. The two sides of the fixed frame are provided with a plurality of longitudinally moving side slides. The two sides of the fixed frame are provided with a plurality of vertically moving clamping blocks corresponding to the positions of the side slides. At least two parallel push rods are hingedly arranged between the sides of the side slides and the clamping blocks facing each other.

[0007] Preferably, the two sides of the fixed frame are provided as a U-shaped strip lying on the side, the side slides slide in the U-shaped strip, the upper side and the lower side of the U-shaped strip are provided with long strip sliding holes, and the upper side and the lower side of the side slide are provided with convex strips corresponding to the long strip sliding holes.

[0008] Preferably, one end of the U-shaped strip is provided with a motor mounting plate, and the other end is provided with a shaft seat plate. A driving motor is installed on the motor mounting plate, and a lead screw lever is connected with the driving motor. A lead screw nut is arranged on the side slide and threadedly cooperates with the lead screw lever. The end of the lead screw lever is rotatably arranged on the shaft seat plate.

[0009] Preferably, the outer side of the clamping block is provided with a first side groove, the inner side of the side sliding block is provided with a second side groove, and the two ends of the parallel push rod are respectively rotatably installed in the first side groove and the second side groove through the rotating shafts.

[0010] Preferably, the inner wall of the U-shaped strip is provided with a plurality of vertical holes corresponding to the clamping blocks, the outer side of the vertical hole is provided with a guide pipe, the inner side of the clamping block is provided with a plurality of transverse insertion strips, and the outer wall of the battery pack body is provided with transverse insertion grooves corresponding to the transverse insertion strips.

[0011] Preferably, the two ends of the battery pack body are provided with L-shaped insertion plates capable of being inserted into the two ends of the fixed frame, and the two ends of the fixed frame are provided with rectangular holes.

[0012] Preferably, the inner side of the rectangular hole is provided with a T-shaped hole, a T-shaped block capable of sliding transversely is installed in the T-shaped hole, a screw hole is arranged in the middle of the T-shaped block, the two ends of the fixed frame are provided with first through holes capable of inserting fastening bolts, the L-shaped insertion plate is provided with second through holes corresponding to the first through holes, and the first through holes, the second through holes and the screw hole are coaxially arranged.

[0013] Preferably, the side of the T-shaped hole close to the inside is provided with a first circular groove, the inner side of the T-shaped block is provided with a second circular groove corresponding to the first circular groove, and a spring is arranged between the first circular groove and the second circular groove.

[0014] Preferably, a positioning column is fixed at the center of the first circular groove, and the side of the L-shaped insertion plate facing the T-shaped block is provided with a positioning groove capable of being embedded in the end face of the T-shaped block.

[0015] The application also provides a battery replacement method for the new energy vehicle power battery pack mounting assembly.

[0016] S1, driving the vehicle loaded with the new energy vehicle power battery pack mounting assembly to a battery replacement position, and performing position calibration through a visual sensor;

[0017] S2, opening the battery compartment door of the battery replacement station, supporting the battery pack body through a lifting device carried by an AGV trolley, and loosening the clamping of the clamping block on the battery pack by sliding the side sliding blocks on both sides.

[0018] S3, carrying the battery pack body into a charging position by the AGV trolley.

[0019] Lifting the battery pack body to an assembly position by another AGV trolley, sliding the side sliding blocks on both sides in the opposite direction, and clamping the battery pack by the clamping block.

[0020] According to the technical scheme, the new energy vehicle power battery pack mounting assembly and the battery replacement method simplify the assembly of the bolts, utilize the synchronous movement of the plurality of side sliding blocks and the linkage of the at least two parallel push rods corresponding to each side sliding block to push the clamping blocks to clamp or release the side surface of the battery pack, and fix the battery pack body through the side clamping assembly, thereby increasing the battery replacement speed and efficiency.

[0021] Other features and advantages of the present application will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the principles of the application. In the drawings:

[0023] Figure 1 is a schematic view of the overall structure of the new energy vehicle power battery pack mounting assembly;

[0024] Figure 2 is a schematic view of the top view structure of the new energy vehicle power battery pack mounting assembly;

[0025] Figure 3 is a schematic view of the A-A cross-sectional structure of Figure 2 ;

[0026] Figure 4 is a schematic view of the B-B cross-sectional structure of Figure 2 ;

[0027] Figure 5 is a schematic view of the side view of the new energy vehicle power battery pack mounting assembly;

[0028] Figure 6 is a schematic view of the C-C cross-sectional structure of Figure 5 ;

[0029] Figure 7 is a schematic view of the local enlarged structure of the D area in Figure 6 ;

[0030] Figure 8 is a schematic view of the local enlarged structure of the E area in Figure 6 .

[0031] LIST OF ELEMENTS

[0032] 1-fixed frame; 2-guide pipe; 3-battery pack body; 4-U-shaped bar; 5-motor mounting plate; 6-axle seat plate; 7-driving motor; 8-screw lever; 9-side sliding block; 10-convex strip; 11-long sliding hole; 12-L-shaped plate; 13-fastening bolt; 14-transverse insertion slot; 15-transverse insertion strip; 16-clamping block; 17-parallel push rod; 18-work-shaped block; 19-screw hole; 20-first circular groove; 21-second circular groove; 22-positioning column; 23-spring; 24-positioning groove; 25-first side groove; 26-second side groove; 27-rotating shaft. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0034] In the present application, the orientation words such as "up and down, left and right, front and back, inside and outside" contained in the terms only represent the orientation of the terms in the conventional use state or the common name understood by those skilled in the art, and should not be regarded as a limitation of the terms.

[0035] Reference Figures 1-8 The new energy vehicle power battery pack mounting assembly shown in the figure comprises a fixed frame 1 and a battery pack body 3, a plurality of longitudinally moving side sliding blocks 9 are arranged on both sides of the fixed frame 1, clamping blocks 16 vertically moving are arranged on both sides of the fixed frame 1 corresponding to the positions of the side sliding blocks 9, and at least two parallel push rods 17 are hingedly arranged between the sides of the side sliding blocks 9 and the clamping blocks 16 facing each other.

[0036] The new energy vehicle power battery pack mounting assembly and the battery replacement method simplify the assembly of bolts, utilize the synchronous movement of a plurality of side sliding blocks, and utilize the linkage of at least two parallel push rods 17 corresponding to each side sliding block 9 to push the clamping blocks 16 to clamp or loosen the side of the battery pack, so as to fix the battery pack body 3 in a side clamping manner, thereby increasing the battery replacement speed and efficiency.

[0037] In this embodiment, the two sides of the fixed frame 1 are arranged as a U-shaped bar 4 lying on the side, the side sliding blocks 9 slide in the U-shaped bar 4, the upper side and the lower side of the U-shaped bar 4 are provided with long sliding holes 11, and the upper side and the lower side of the side sliding blocks 9 are provided with convex strips 10 corresponding to the long sliding holes 11. Through such arrangement, the side sliding blocks 9 can slide along the long sliding holes 11 in the U-shaped bar 4.

[0038] In this embodiment, one end of the U-shaped strip 4 is provided with a motor mounting plate 5, and the other end is provided with a shaft seat plate 6; the motor mounting plate 5 is provided with a driving motor 7, the driving motor 7 is connected with a lead screw lever 8, the side sliding block 9 is provided with a lead screw nut which is threadedly connected with the lead screw lever 8; the end of the lead screw lever 8 is rotatably arranged on the shaft seat plate 6. In use, the lead screw lever 8 is driven to rotate by the driving motor 7, and the plurality of side sliding blocks 9 are synchronously pushed or moved backward under the cooperation of the lead screw lever 8 and the lead screw nut, so as to push or pull the clamping block 16 through the parallel push rod 17, thereby realizing clamping or loosening of the side of the battery pack body 3. In order to avoid loosening, the driving motor 7 used is a self-locking motor which can lock the shaft body when stopping rotating.

[0039] In this embodiment, the outer side of the clamping block 16 is provided with a first side groove 25, the inner side of the side sliding block 9 is provided with a second side groove 26, and the two ends of the parallel push rod 17 are rotatably arranged in the first side groove 25 and the second side groove 26 through the rotating shaft 27. In one embodiment, two parallel push rods 17 are arranged corresponding to each side sliding block 9, forming a parallel four-bar linkage structure, and the clamping block 16 is driven to move vertically through the forward and backward sliding of the side sliding block 9.

[0040] In this embodiment, the inner wall of the U-shaped strip 4 is provided with a plurality of vertical holes corresponding to the clamping block 16, the outer side of the vertical hole is provided with a guide pipe 2, the inner side of the clamping block 16 is provided with a plurality of transverse insertion strips 15, and the outer wall of the battery pack body 3 is provided with a transverse insertion slot 14 corresponding to the transverse insertion strip 15. Through the cooperation of the transverse insertion strip 15 and the transverse insertion slot 14, when the clamping block 16 is clamped, the transverse insertion strip 15 is inserted into the transverse insertion slot 14, thereby improving the vertical stability and avoiding the battery pack body 3 from falling.

[0041] In this embodiment, the two ends of the battery pack body 3 are provided with L-shaped insertion plates 12 which can be inserted into the two ends of the fixed frame 1, and the two ends of the fixed frame 1 are provided with rectangular holes. Through such arrangement, when the battery pack body 3 is assembled upward, the vertical section of the L-shaped insertion plate 12 is inserted into the corresponding rectangular hole, thereby improving the anti-impact ability of the front and rear ends of the battery pack body 3 and improving the overall stability.

[0042] In the embodiment, the inner side of the rectangular hole is provided with a T-shaped hole, a T-shaped block 18 capable of transverse sliding is installed in the T-shaped hole, the middle part of the T-shaped block 18 is provided with a threaded hole 19, the two ends of the fixed frame 1 are provided with first through holes capable of inserting the fastening bolt 13, the L-shaped insert plate 12 is provided with second through holes corresponding to the first through holes, and the first through holes, the second through holes and the threaded hole 19 are coaxially arranged. Through such an arrangement, the transversely arranged fastening bolt 13 is sequentially inserted into the first through hole and the second through hole and then screwed into the threaded hole 19, so that the outer end surface of the T-shaped block 18 is clamped on the inner wall of the rectangular hole, thereby reinforcing the fixation of the battery pack body 3.

[0043] In the embodiment, the inner side of the T-shaped hole is provided with a first circular groove 20, the inner side of the T-shaped block 18 is provided with a second circular groove 21 corresponding to the first circular groove 20, and a spring 23 is arranged between the first circular groove 20 and the second circular groove 21. Through such an arrangement, when the fastening bolt 13 is loosened, the T-shaped block 18 is reset by the spring 23.

[0044] In the embodiment, the first circular groove 20 is fixedly connected with a positioning column 22 at the center, and the side of the L-shaped insert plate 12 facing the T-shaped block 18 is provided with a positioning groove 24 capable of embedding the end surface of the T-shaped block 18. After the T-shaped block 18 is locked, one end thereof is embedded in the positioning groove 24, and the middle part is in the T-shaped hole, so that the vertical limiting of the two ends of the battery pack body 3 is realized, and the vertical stability of the battery pack body 3 is further increased.

[0045] As a matched use of the new energy vehicle power battery pack mounting assembly in the application, a self-provided bolt wrench is also installed on the vehicle frame, when the two sides are clamped by the clamping blocks 16, the vehicle drives out of the battery replacement station, and the self-provided bolt wrench is used to tighten the fastening bolt 13 and the T-shaped block 18.

[0046] The application also provides a battery replacement method for the new energy vehicle power battery pack mounting assembly, which comprises the following steps.

[0047] S1, driving the vehicle loaded with the new energy vehicle power battery pack mounting assembly to a battery replacement position, and performing position calibration through a visual sensor;

[0048] S2, opening the battery compartment door of the battery replacement station, supporting the battery pack body 3 through a jacking device carried by an AGV trolley, and loosening the clamping of the battery pack by the clamping blocks 16 through the sliding of the side sliding blocks 9 on the two sides;

[0049] S3, carrying the battery pack body 3 into a charging position through the AGV trolley;

[0050] Carrying the battery pack body 3 to an assembly position through another AGV trolley, reversely sliding the side sliding blocks 9 on the two sides, and clamping the battery pack through the clamping blocks 16.

[0051] By the above battery replacement method, the device for disassembling the bolts on the AGV trolley is omitted, thus saving the time for disassembling and assembling the bolts during the battery replacement, thereby shortening the battery replacement time. In order to increase the fixing strength of the battery pack, the tightening bolts 13 and the I-beam 18 are tightened by the self-provided bolt wrench while the vehicle is driving out of the battery replacement station, realizing the front and rear and left and right fixation of the battery pack body 3. The bolt wrench can be always connected with the tightening bolts 13, reducing the calibration step of the bolt position.

[0052] The preferred embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application.

[0053] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present application will not further describe various possible combination manners.

[0054] In addition, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, and it should also be considered as disclosed by the present application.

Claims

1. A new energy vehicle power battery pack mounting assembly, characterized in that, The device includes a fixed frame (1) and a battery pack body (3). The fixed frame (1) has multiple longitudinally movable side sliders (9) on both sides. The fixed frame (1) has vertically movable clamping blocks (16) on both sides corresponding to the positions of the side sliders (9). At least two parallel push rods (17) are hinged between the sides of the side sliders (9) and the clamping blocks (16) facing each other.

2. The new energy vehicle power battery pack mounting assembly according to claim 1, characterized in that, The two sides of the fixed frame (1) are set as U-shaped strips (4) lying on their sides; The side slider (9) slides within the U-shaped strip (4). The upper and lower sides of the U-shaped strip (4) are provided with elongated sliding holes (11), and the upper and lower sides of the side slider (9) are provided with protrusions (10) corresponding to the elongated sliding holes (11).

3. The new energy vehicle power battery pack mounting assembly according to claim 2, characterized in that, One end of the U-shaped bar (4) is provided with a motor mounting plate (5), and the other end is provided with a bearing plate (6); a drive motor (7) is mounted on the motor mounting plate (5), and a lead lever (8) is shaft-connected to the drive motor (7); a lead screw nut that is threadedly engaged with the lead lever (8) is provided on the side slider (9); the end of the lead lever (8) is rotatably mounted on the bearing plate (6).

4. The new energy vehicle power battery pack mounting assembly according to claim 3, characterized in that, The clamping block (16) has a first side groove (25) on its outer side, and the side slider (9) has a second side groove (26) on its inner side. The two ends of the parallel push rod (17) are respectively rotatably installed in the first side groove (25) and the second side groove (26) via a rotating shaft (27).

5. The new energy vehicle power battery pack mounting assembly according to claim 4, characterized in that, The inner wall of the U-shaped strip (4) is provided with a plurality of vertical holes corresponding to the clamping block (16), and a guide tube (2) is provided on the outer periphery of the vertical holes. The inner side of the clamping block (16) is provided with a plurality of transverse inserts (15), and the outer wall of the battery pack body (3) is provided with transverse slots (14) corresponding to the transverse inserts (15).

6. The new energy vehicle traction battery pack mounting assembly according to any one of claims 1-5, characterized in that, The battery pack body (3) is provided with L-shaped insert plates (12) at both ends that can be inserted into the two ends of the fixing frame (1), and the fixing frame (1) is provided with rectangular holes at both ends.

7. The new energy vehicle power battery pack mounting assembly according to claim 6, characterized in that, The rectangular hole has an I-shaped hole on its inner side, and an I-shaped block (18) that can slide laterally is installed in the I-shaped hole. A screw hole (19) is provided in the middle of the I-shaped block (18). The fixed frame (1) has first through holes at both ends for inserting fastening bolts (13), and the L-plate (12) has second through holes corresponding to the first through holes. The first through holes, the second through holes and the screw holes (19) are coaxially arranged.

8. The new energy vehicle power battery pack mounting assembly according to claim 7, characterized in that, The inner side of the I-shaped hole is provided with a first circular groove (20), and the inner side of the I-shaped block (18) is provided with a second circular groove (21) corresponding to the first circular groove (20). A spring (23) is provided between the first circular groove (20) and the second circular groove (21).

9. The new energy vehicle power battery pack mounting assembly according to claim 8, characterized in that, The first circular groove (20) is fixedly connected to a positioning post (22), and the L-shaped insert plate (12) facing the I-shaped block (18) is provided with a positioning groove (24) that can be embedded into the end face of the I-shaped block (18).

10. A method for battery swapping of the new energy vehicle power battery pack mounting assembly according to any one of claims 1-9, characterized in that, include: S1. Drive the vehicle equipped with the new energy vehicle power battery pack assembly to the power exchange point and perform position calibration using a visual sensor. S2, open the battery compartment door of the battery swap station, provide support to the battery pack body (3) through the lifting device carried by the AGV trolley, loosen the clamping of the battery pack by the clamping block (16) on the two side sliding blocks (9); S3, carry the battery pack body (3) into the charging position by the AGV trolley; Carry the battery pack body (3) to the assembly position by another AGV trolley, slide the two side sliding blocks (9) in reverse, and clamp the battery pack by the clamping block (16).

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