CN216580205U

CN216580205U - Battery pack moving device and battery changing station

Info

Publication number: CN216580205U
Application number: CN202122874151.8U
Authority: CN
Inventors: 李龙; 朱攀; 杨海东; 杨全凯; 韩磊
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-24
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a battery pack moving device and a battery changing station, which comprise a transportation frame, a first driving assembly, a second driving assembly and at least one clamping piece, wherein the clamping piece is used for clamping a battery pack; the first driving assembly comprises a driving screw rod, a moving body and a transmission piece fixed on the moving body, the driving screw rod is horizontally arranged on the transportation frame, and the driving screw rod is in threaded connection with the transmission piece and is used for driving the transmission piece to translate along the axial direction of the driving screw rod; the second drive assembly comprises a synchronous belt, the clamping piece is rotatably arranged on the synchronous belt, the synchronous belt is located on two sides of the moving main body, and the synchronous belt and the moving main body move relatively to each other for driving the clamping piece to move along the axial direction of the driving screw rod. The battery pack moving device adopts the driving screw rod and the synchronous belt to form a two-stage driving structure, so that the movable range of the clamping piece is expanded, the occupied space can be saved when the battery pack moving device is idle, the whole structure is compact, the installation and the maintenance are convenient, and the comprehensive cost is low.

Description

Battery pack moving device and battery changing station

Technical Field

The utility model relates to the technical field of battery changing stations, in particular to a battery pack moving device and a battery changing station.

Background

The small-sized battery replacing station is automatic equipment for replacing batteries of electric automobiles, and the battery replacing station on the market at present mainly comprises a container, a battery rack with a power bin, a lifter and a battery replacing device. After the electric vehicle enters the battery replacing station, the battery replacing device can take down the battery pack which consumes the electric energy, then the elevator ascends to the position of the power bin of the battery frame, and the power bin of the battery frame conveys the fully charged battery to the elevator, so that the whole battery replacing process is completed. However, in the elevator in the prior art, the motor must be installed on each layer of battery rack, which causes the disadvantages of overlarge occupied space, complex control, inconvenient installation and maintenance, frequent failure and the like, resulting in overhigh comprehensive cost and low overall practicability. Therefore, a battery pack moving device is needed, which can move in the horizontal direction and the vertical direction between the battery racks, and further move the battery pack, thereby saving energy, reducing the complexity of a control system, and saving maintenance cost.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a battery pack moving device and a battery changing station, which can move between battery racks to transport battery packs, have simple structure and convenient installation and maintenance, reduce the control difficulty, save energy and greatly reduce the comprehensive cost.

The utility model provides a battery pack moving device which comprises a transport frame, a first driving assembly, a second driving assembly and at least one clamping piece, wherein the clamping piece is used for clamping a battery pack; the first driving assembly comprises a driving screw rod, a moving body and a transmission piece fixed on the moving body, the driving screw rod is horizontally arranged on the transportation frame, and the driving screw rod is in threaded connection with the transmission piece and is used for driving the transmission piece to translate along the axial direction of the driving screw rod; the second driving assembly comprises a synchronous belt, the clamping piece is rotatably arranged on the synchronous belt, the synchronous belt is located on two sides of the moving main body, and the synchronous belt and the moving main body move relatively and are used for driving the clamping piece to move along the axial direction of the driving screw rod.

Further, the second driving assemblies are arranged in one-to-one correspondence with the clamping members.

Further, the transport frame is provided with at least one group of roller rows, and the roller rows are used for enabling the battery pack to move along the axial direction of the driving screw rod.

Furthermore, two sides of the transportation frame, which are not adjacent to each other, are respectively and fixedly provided with a driving device and a limiting part, the driving device is rotatably connected with one end of the driving screw rod, the limiting part is rotatably connected with the other end of the driving screw rod, and the limiting part is used for abutting against the transmission part.

Further, the battery pack moving device further comprises at least one group of guide assemblies, each guide assembly comprises a guide rail and a first sliding piece which is arranged in a sliding mode relative to the guide rail, the guide rails are fixedly connected with the transportation frame, the guide rails are parallel to the axial direction of the driving screw rod, and the first sliding pieces are fixedly connected with the moving body.

Furthermore, a rotating cylinder is further arranged on the synchronous belt and fixedly connected with the synchronous belt, and the rotating cylinder is further rotatably connected with one end of the clamping piece and used for driving the clamping piece to rotate.

Further, the tail end of the clamping piece is provided with a clamping portion, and the clamping portion is used for being clamped with the battery pack in a matching mode.

Furthermore, the battery pack moving device further comprises a plurality of lifting assemblies, wherein the lifting assemblies are located at the edge of the transportation frame and used for driving the transportation frame to move in the vertical direction.

Preferably, the lifting assembly comprises a fixed part, a connecting part and a second sliding part, the fixed part is fixedly connected with the transportation frame, the fixed part and the second sliding part are arranged in a relatively static manner through the connecting part, and the second sliding part is used for being connected with a frame of the lifter in a sliding manner.

The utility model also provides a battery changing station which comprises a lifter and the battery pack moving device, wherein the battery pack moving device is arranged in the lifter and can move in the lifter along the vertical direction.

The implementation of the utility model has the following beneficial effects:

1. the conveying frame and the clamping piece form a secondary driving structure through the first driving assembly and the second driving assembly, the moving main body drives the clamping piece to move along the moving direction through relative sliding between the driving screw rod and the transmission piece, and the synchronous belt drives the clamping piece to further extend towards the moving direction, so that the movable range of the clamping piece is expanded; meanwhile, when the first driving assembly and the second driving assembly retract, the second driving assembly hardly occupies extra space, and the length and the space can be greatly saved.

2. The roller row is arranged in a rolling manner, so that the friction force applied to the battery pack during movement is greatly reduced, and the battery pack can move quickly and smoothly.

3. Adopt revolving cylinder drive clamping piece, the mode that the battery package was blocked to the clamping piece end promotes compact structure degree, and the joint is quick, saves the cost.

4. The lifting assembly is connected with the transportation frame, so that the transportation frame can move up and down in the lifter to reach the multilayer storage positions in the battery rack; in addition, the lifting of the transportation frame is realized through the hinge, so that the processing precision in the vertical direction can be reduced, and the processing cost and the manufacturing difficulty are reduced.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described, wherein like parts are designated by like reference numerals. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural view of a battery pack moving device provided by the present invention when a moving body is extended;

fig. 2 is a schematic structural view of the battery pack moving apparatus provided in the present invention when the moving body is retracted;

FIG. 3 is a schematic view of the connection of the clamping members in a possible embodiment of the utility model;

FIG. 4 is a schematic view of the clamp of FIG. 3 rotated 90;

FIG. 5 is a schematic diagram of a lift assembly in accordance with one possible embodiment of the present invention;

fig. 6 is a schematic structural view of an elevator in a possible embodiment of the present invention.

Wherein the reference numerals in the figures correspond to: 1-a transport frame, 11-a roller row, 12-a limiting piece, 2-a first driving assembly, 21-a driving screw rod, 22-a moving body, 23-a transmission piece, 3-a second driving assembly, 31-a synchronous belt, 32-a rotary cylinder, 33-a sliding connection piece, 4-a clamping piece, 41-a clamping part, 5-a guide assembly, 51-a guide rail, 52-a first sliding piece, 6-a lifting assembly, 61-a fixing piece, 62-a connecting piece, 63-a second sliding piece and 64-a lifting chain.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "back", "two ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred device or structure must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; also, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Examples

The embodiment provides a battery replacing station, which is provided with a lifter for moving a battery pack, wherein a battery pack moving device is arranged in the lifter and can lift in the lifter along a vertical direction; as shown in the accompanying drawings 1-6 of the specification, the battery pack moving device comprises a transport frame 1 and two clamping members 4, wherein the clamping members 4 are used for clamping a battery pack, the transport frame 1 is used for driving the clamping members 4 after clamping the battery pack to move integrally in the vertical direction, and in the horizontal direction, the transport frame 1 and the clamping members 4 are connected with each other through a first driving assembly 2 and a second driving assembly 3, so that the clamping members 4 can move in the horizontal direction relative to the transport frame 1, the clamping members 4 can extend out of the edge of the transport frame 1 and then contact and clamp the battery pack placed in a battery pack storage bin, and the battery pack is also driven to move to the transport frame 1 along with the retraction of the clamping members 4 into the transport frame 1, and then the battery pack is transported in a battery replacing station along with the movement of the transport frame 1.

Specifically, as shown in fig. 1-2 of the specification, the first driving assembly 2 and the second driving assembly 3 form a two-stage driving structure, and the movable range of the clamping member 4 in the horizontal direction is prolonged; the first driving assembly 2 comprises a driving screw rod 21, a moving body 22 and a transmission piece 23 fixed on the moving body 22, the driving screw rod 21 is horizontally arranged on the transportation frame 1, and the transmission piece 23 is in threaded connection with the driving screw rod 21, so that when the driving screw rod 21 rotates, the transmission piece 23 can be driven to translate along the axial direction of the driving screw rod 21 according to the matching of threads between the transmission piece 23 and the driving screw rod 21, and the moving body 22 fixedly connected with the transmission piece 23 is driven to translate along the axial direction of the driving screw rod 21, so that first-stage translation motion is realized; here, the axial direction of the driving screw 21 is the moving direction of the moving body 22, the clamping member 4, and the battery pack in the horizontal direction.

Specifically, as shown in fig. 2, the transportation frame 1 has four sides, wherein a driving device and a limiting member 12 are respectively disposed on two sides of the transportation frame 1 perpendicular to the moving direction, the driving device is rotatably connected to one end of a driving screw 21, and outputs power to drive the driving screw 21 to rotate; the limiting piece 12 is fixedly arranged on the edge of the other end of the transportation frame 1 and is rotatably connected with the other end of the driving screw rod 21, so that the driving screw rod 21 can rotate relative to the transportation frame 1, and the moving main body 22 is driven to move; when the moving body 22 extends out of the transportation frame 1 and reaches the position shown in fig. 1, the maximum movable distance of the moving body 22 is reached, at this time, the limiting member 12 abuts against the transmission member 23, so as to prevent the transmission member 23 from moving excessively and prevent the transmission member 23 from being separated from the driving screw 21, so that the moving body 22 falls off and the battery pack moving device is damaged.

Specifically, as shown in fig. 1-2 of the specification, the battery pack moving device further includes two sets of guide assemblies 5, where the guide assemblies 5 include guide rails 51 and first sliding members 52 slidably disposed with respect to the guide rails 51, where the guide rails of the two sets of guide assemblies 5 are disposed in parallel and parallel to the axial direction of the driving screw 21, so as to ensure that the moving direction of the moving body 22 is accurate and is not prone to deviation; in the present embodiment, the guide rail 51 is fixedly connected with the transport frame 1, and the first sliding member 52 is fixedly connected with the moving body 22, so as to ensure the stability of sliding; in a possible embodiment of the present description, it is also possible to fixedly connect the first slider 52 to the transport frame 1, while the guide rail 51 is fixedly connected to the moving body 22, in a flexible and versatile manner; in addition, in another possible embodiment of the present description, it is also possible to provide only one set of guide assemblies 5, reducing the structural complexity and also saving materials and corresponding costs; in other embodiments of the present disclosure, the first sliding member 52 may be provided with a matching groove, and an inner wall of the matching groove is completely matched with the surface of the guide rail 51, so that the contact surface of the first sliding member 52 and the guide rail 51 is highly matched, and it is ensured that the guide rail 51 and the first sliding member 52 do not shake in a direction perpendicular to the moving direction, thereby reducing the possibility of occurrence of shock as much as possible, and further reducing the risk of the battery pack being shocked and dropped.

Specifically, as shown in the attached drawing 1 of the specification, the transportation frame 1 is further provided with two sets of roller rows 11, the rolling direction of each roller is consistent with the moving direction of the moving main body 22, when the clamping piece 4 clamps the battery pack and retracts into the transportation frame 1, the upper surface of each roller row 11 is in contact with the bottom of the battery pack, through the rolling of the roller rows 11, the friction force between the battery pack and the transportation frame 1 is reduced, the clamping piece 4 only needs to apply a small pushing force to the battery pack, the battery pack can be driven to move easily, the load of the clamping piece 4 is reduced, the service life of the clamping piece 4 is prolonged, meanwhile, the battery pack is prevented from dropping abnormally due to the fact that the resistance is too large in the moving process, and the operation stability of the whole battery pack moving device is improved.

Specifically, as shown in fig. 1-2, the second driving assemblies 3 and the clamping members 4 are arranged in two groups in a one-to-one correspondence manner, and are used for driving the clamping members 4 to further move towards the moving direction when the moving main body 22 moves to the maximum moving distance, so as to enlarge the movable distance of the whole clamping members 4, and in a retracted state, the occupied length and space can be effectively saved, and the space utilization rate is high; the second driving assembly 3 includes synchronous belts 31, the synchronous belts 31 are located at two sides of the moving main body 22, and can rotate relative to the moving main body 22, so as to drive the clamping member 4 to further extend along the moving direction, that is, the clamping member can further move from one end of the moving main body 22 close to the driving device to one end of the moving main body 22 close to the limiting member 12, so as to implement a second-stage translational motion; in a possible embodiment of the present specification, the length occupied by the timing belt 31 in the moving direction may be set to be greater than the length of the two sides of the moving body 22, as shown in fig. 1, in the direction perpendicular to the driving screw 21, one end of the timing belt 31 exceeds the edge of the middle of the moving body 22 and extends toward the outside of the moving body 22, so as to further expand the movable range of the clamping member 4 and save the material and cost of the moving body 22 corresponding to the exceeding part of the timing belt 31.

Specifically, as shown in fig. 3-4 of the specification, the clamping member 4 is provided as a rotatable structure, and a rotating cylinder 32 is provided on the timing belt 31 for driving the clamping member 4 to rotate to clamp the battery pack; the rotating cylinder 32 is fixedly connected with the synchronous belt 31, and the rotating cylinder 32 is further rotatably connected with one end of the clamping member 4, so that when the synchronous belt 31 rotates, the rotating cylinder 31 and the clamping member 4 can be driven to move together along the moving direction; in one possible embodiment of the present disclosure, in order to improve the connection reliability, a sliding connector 33 may be further fixedly disposed on the rotating cylinder 32, and the sliding connector 33 can slide back and forth along two sides of the moving body 22, so as to drive the rotating cylinder 32 and the clamping member 4 to move together, thereby improving the movement reliability of the clamping member 4.

Specifically, as shown in fig. 3, a clamping portion 41 used for being matched with a battery pack is arranged at the tail end of the clamping member 4, in order to ensure that the clamping member 4 can effectively drive the battery pack to move, a connecting groove can be arranged on the clamping portion 41, and a convex battery lock is arranged in a corresponding area on the battery pack, so that along with the rotation of the clamping portion 41, the connecting groove can rotate to the position of the battery lock, the battery lock can be conveniently clamped into the connecting groove, and then a pushing force along the moving direction is applied to the battery pack to push the battery pack to move into the transportation frame 1; alternatively, in one possible embodiment of the present specification, the connection groove may be provided on the battery pack, and the battery lock may be provided on the snap-in portion 41; and, according to the difference of the position of setting of battery lock on the battery package, can also change the setting orientation of spread groove, for example, in this embodiment, as shown in fig. 3, clamping member 4 is vertical state under idle state, the spread groove orientation at this moment is the horizontal direction, and the orientation removes the direction that main part 22 was located, and clamping member 4 rotates to the state in fig. 4 during operation, spread groove orientation down at this moment, can with be located the battery lock joint on battery package upper portion, thereby guarantee that clamping member 4 presss from both sides tight battery package, the setting form is various, and is nimble changeable, and application scope is wide.

Specifically, the battery pack moving device further comprises a plurality of lifting assemblies 6, as shown in fig. 6 in the specification, a group of lifting assemblies 6 is arranged at each of four edges of the lifter, and the whole conveying frame 1 can be driven to move up and down; as shown in fig. 5 of the specification, the lifting assembly 6 includes a fixed member 61, a connecting member 62 and a second sliding member 63, the fixed member 61 is fixedly connected with the transportation frame 1, the second sliding member 63 is slidably connected with the frame of the lifter, and the fixed member 61 and the second sliding member 63 are relatively statically arranged through the connecting member 62, so that when the second sliding member 63 slides up and down along the frame of the lifter, the fixed member 61 and the transportation frame 1 fixedly connected with the fixed member 61 can be driven to move up and down; in this embodiment, the connecting member 62 may be a fixing pin, so that the connecting manner is simple and the structural complexity is low; in a possible embodiment of the present specification, the second sliding member 63 may be configured as a hinge, and the fixing member 61 is fixed to the hinge, and drives the transportation frame 1 to move up and down along with the up-and-down movement of the hinge, so as to reduce the processing precision of the installation surface in the vertical direction, reduce the manufacturing difficulty, reduce the processing cost, and meanwhile, the hinge is more stable in traction and lifting, and has high reliability.

When the battery pack is taken from the battery compartment, the second sliding part 63 slides relative to the frame of the elevator to drive the transportation frame 1 to reach the height of the battery compartment, then the second sliding part 63 stops sliding, the transportation frame 1 stops, the driving device starts to output power to drive the screw rod 21 to rotate, the transmission part 23 is driven to translate towards the limiting part 12 to drive the moving main body 22 to integrally translate and extend out of the range of the transportation frame 1, and in the process, the guide rail 51 is matched with the first sliding part 52 to ensure that the translation direction is always accurate; the synchronous belt 31 starts to rotate, the rotary cylinder 31 and the clamping piece 4 are driven to further extend towards the outside of the transportation frame 1, but the rotation of the synchronous belt 31 can be started after the moving main body 22 reaches the maximum movable distance, and can also be synchronously performed in the moving process of the moving main body 22 so as to improve the transportation efficiency, until the clamping part 41 on the clamping piece 4 can be just clamped with the battery pack, the battery pack is driven to retract towards the transportation frame 1 according to the step opposite to the extending process, the first driving assembly 2 and the second driving assembly 3 are controlled, the battery pack can be moved into the transportation frame 1 under the driving of the clamping piece 4, the surface of the battery pack is in contact with the roller row 11, the friction force is reduced through the rolling of the roller row 11, and the movement efficiency of the battery pack is improved; on the contrary, when placing the battery package in the battery compartment, 4 centre gripping battery packages of clamping piece along with transportation frame 1 wholly moves to the battery compartment place height, later according to the scope that the process control clamping piece 4 that stretches out of transportation frame 1 of the aforesaid drives the battery package, reachs the battery compartment, clamping piece 4 and battery package unblock separation, clamping piece 4 is according to the above-mentioned retraction process, drives the transportation frame 1 that retracts by first drive assembly 2 and second drive assembly 3, later transportation frame 1 resets or is used for transporting next battery package.

According to the embodiment, the utility model has the following beneficial effects:

While the utility model has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the utility model as defined by the claims.

Claims

1. A battery pack moving device, characterized by comprising a transport frame (1), a first drive assembly (2), a second drive assembly (3) and at least one clamping member (4), the clamping member (4) being used for clamping a battery pack; the first driving assembly (2) comprises a driving screw rod (21), a moving body (22) and a transmission piece (23) fixed on the moving body (22), the driving screw rod (21) is horizontally arranged on the transportation frame (1), and the driving screw rod (21) is in threaded connection with the transmission piece (23) and is used for driving the transmission piece (23) to translate along the axial direction of the driving screw rod (21); the second drive assembly (3) includes hold-in range (31), clamping piece (4) rotatable set up in hold-in range (31), hold-in range (31) are located the both sides of removal main part (22), and hold-in range (31) with removal main part (22) relative movement sets up, is used for driving clamping piece (4) are followed the axial direction of drive lead screw (21) removes.

2. A battery pack displacement apparatus as claimed in claim 1, wherein the second drive assemblies (3) are arranged in one-to-one correspondence with the clamping members (4).

3. A battery pack displacement apparatus as claimed in claim 1, wherein the transport frame (1) is provided with at least one set of roller rows (11), the roller rows (11) being adapted to displace the battery pack in the axial direction of the drive screw (21).

4. The battery pack moving device according to claim 1, wherein two non-adjacent sides of the transportation frame (1) are respectively and fixedly provided with a driving device and a limiting member (12), the driving device is rotatably connected with one end of the driving screw rod (21), the limiting member (12) is rotatably connected with the other end of the driving screw rod (21), and the limiting member (12) is used for abutting against the transmission member (23).

5. A battery pack displacement device according to claim 1, characterized in that the battery pack displacement device further comprises at least one set of guide assemblies (5), the guide assemblies (5) comprising a guide rail (51) and a first slide (52) slidably arranged relative to the guide rail (51), the guide rail (51) being fixedly connected to the transport frame (1), and the guide rail (51) being parallel to the axial direction of the drive screw (21), the first slide (52) being fixedly connected to the displacement body (22).

6. The battery pack moving device according to claim 1, wherein a rotating cylinder (32) is further disposed on the synchronous belt (31), the rotating cylinder (32) is fixedly connected to the synchronous belt (31), and the rotating cylinder (32) is further rotatably connected to one end of the clamping member (4) for driving the clamping member (4) to rotate.

7. The battery pack moving device according to claim 1, wherein a clamping portion (41) is arranged at the end of the clamping member (4), and the clamping portion (41) is used for matching and clamping with a battery pack.

8. A battery pack displacement apparatus according to claim 1, further comprising a plurality of lifting assemblies (6), wherein the lifting assemblies (6) are located at the edge of the transport frame (1) for moving the transport frame (1) in the vertical direction.

9. The battery pack moving device according to claim 8, wherein the lifting assembly (6) comprises a fixed member (61), a connecting member (62) and a second sliding member (63), the fixed member (61) is fixedly connected with the transportation frame (1), the fixed member (61) and the second sliding member (63) are arranged stationary relative to each other through the connecting member (62), and the second sliding member (63) is used for being slidably connected with a frame of a lifter.

10. A battery changing station comprising an elevator and a battery pack moving device according to any one of claims 1 to 9, wherein the battery pack moving device is disposed in the elevator and is capable of moving in a vertical direction in the elevator.