Vehicle battery replacement base assembly and battery replacement type truck

Abstract

The utility model discloses a vehicle battery replacing base assembly which comprises a base support, a linear driver, a connecting rod, a locking shaft and a rotating lock pin, the linear driver, the connecting rod, the locking shaft and the rotating lock pin are installed on the base support, the fixed end of the connecting rod is connected with the bottom end of the locking shaft, the locking shaft penetrates through the base support, and the top end of the locking shaft is connected with the rotating lock pin. A locking groove is formed in the corresponding position of the bottom face of the battery pack, the rotating lock pin is inserted into the locking groove, and the linear driver drives the locking shaft to rotate and drives the rotating lock pin to rotate in the locking groove so as to lock or unlock the base support and the battery pack. When the battery pack needs to be replaced, the linear driver acts, linear motion is converted into rotary motion through the connecting rod and the locking shaft, the rotary lock pin rotates in the lock groove in the bottom face of the battery pack, locking and unlocking of the battery pack are achieved, dislocation and jamming are avoided, the locking and unlocking process is faster and more stable, and the working efficiency is improved. The utility model further discloses a battery replacing type truck comprising the vehicle battery replacing base assembly.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicles, and in particular to a vehicle battery-changing base assembly. In addition, the utility model also relates to a battery-changing truck comprising the vehicle battery-changing base assembly. Background Art

[0002] With the increasing emphasis on environmental protection, pure electric vehicles have been widely used as new energy vehicle products, representing the future development direction of the automotive industry. However, due to the influence of battery technology, the energy density of the battery pack cannot be made too high, which results in a long charging time for electric vehicles and a short vehicle range. To solve this shortcoming, battery replacement technology came into being, replacing the battery pack as needed.

[0003] In order to ensure the stable operation of the vehicle, the battery pack needs to be fixed on the base. At the same time, in order to achieve the replacement of the battery pack, a locking mechanism that can be unlocked needs to be set. The locking mechanism in the prior art is a rod lock pin that moves linearly. The driver drives the rod lock pin to push straight into the corresponding hole to lock the battery pack. However, this method is prone to misalignment and jamming. It is necessary to ensure that the rod lock pin is aligned with the hole, resulting in an unstable battery replacement process. At the same time, this locking and unlocking method requires a greater driving force, resulting in energy waste and reduced replacement efficiency.

[0004] Therefore, how to provide a vehicle battery replacement base assembly that can replace battery packs stably and efficiently is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a vehicle battery swap base assembly, which converts linear motion into rotational motion through a connecting rod and a locking shaft, making the locking and unlocking process faster and more stable, thereby improving work efficiency. Another purpose of the utility model is to provide a battery swap truck including the vehicle battery swap base assembly.

[0006] In order to solve the above technical problems, the utility model provides a vehicle battery exchange base assembly, including a base bracket and a linear drive, a connecting rod, a locking shaft and a rotating locking pin installed on the base bracket, the linear drive and the connecting rod are located on the bottom surface of the base bracket, and the rotating locking pin is located on the top surface of the base bracket, one end of the linear drive is hinged to the base bracket, and the other end of the linear drive is hinged to the movable end of the connecting rod, the fixed end of the connecting rod is connected to the bottom end of the locking shaft, the locking shaft passes through the base bracket, and the top end of the locking shaft is connected to the rotating locking pin, the battery pack is installed on the top surface of the base bracket, and a locking groove is provided at the corresponding position of the bottom surface of the battery pack, the rotating locking pin is inserted into the locking groove, and the linear drive drives the locking shaft to rotate, driving the rotating locking pin to rotate in the locking groove to lock or unlock the base bracket and the battery pack.

[0007] Preferably, the linear drive is a hydraulic cylinder.

[0008] Preferably, the base support includes two oppositely arranged horizontal beams and two oppositely arranged longitudinal beams, the longitudinal beams are installed in the middle of the horizontal beams and are located below the horizontal beams, and upwardly inclined oblique beams are arranged on the outer sides of the longitudinal beams, and the outer ends of the oblique beams are close to the ends of the horizontal beams, and the vertical projections of the horizontal beams and the corresponding oblique beams coincide.

[0009] Preferably, it comprises four hydraulic cylinders and four rotating locking pins respectively arranged at the four corners of the base support, the hydraulic cylinder is located on the outside of the longitudinal beam, and the hydraulic cylinder is located between the two oblique beams on the same side.

[0010] Preferably, a hydraulic control system is installed on the bottom surface of the base bracket, and the hydraulic control system is connected to the four hydraulic cylinders through pipelines respectively, and stroke sensors are arranged at both ends of the hydraulic cylinders.

[0011] Preferably, it includes four mounting plates respectively installed at the four corners of the base bracket, a mounting support is installed on the outer end of the mounting plate, the mounting support is hinged to one end of the hydraulic cylinder, a through hole is provided at the inner end of the mounting plate, a bearing is installed in the through hole, and the locking shaft passes through the bearing.

[0012] Preferably, a return torsion spring is sleeved outside the locking shaft, and the return torsion spring is located between the connecting rod and the base bracket.

[0013] Preferably, a limited position frustum is provided between the locking shaft and the rod portion of the rotating locking pin.

[0014] Preferably, the head of the rotary locking pin is provided with an upwardly contracted wire slope.

[0015] The utility model provides a battery-swap truck, comprising a vehicle battery-swap base assembly as described in any one of the above items.

[0016] The utility model provides a vehicle battery exchange base assembly, including a base bracket and a linear drive, a connecting rod, a locking shaft and a rotating locking pin installed on the base bracket. The linear drive and the connecting rod are located on the bottom surface of the base bracket, and the rotating locking pin is located on the top surface of the base bracket. One end of the linear drive is hinged to the base bracket, and the other end of the linear drive is hinged to the movable end of the connecting rod. The fixed end of the connecting rod is connected to the bottom end of the locking shaft, the locking shaft passes through the base bracket, and the top end of the locking shaft is connected to the rotating locking pin. The battery pack is installed on the top surface of the base bracket, and a locking groove is provided at a corresponding position on the bottom surface of the battery pack. The rotating locking pin is inserted into the locking groove. The linear drive drives the locking shaft to rotate, which drives the rotating locking pin to rotate in the lock groove to lock or unlock the base bracket and the battery pack.

[0017] When the battery pack needs to be replaced, the linear drive is activated, converting the linear motion into rotational motion through the connecting rod and the locking shaft, so that the rotary lock pin rotates in the lock groove on the bottom of the battery pack, thereby locking and unlocking the battery pack, avoiding misalignment and jamming, making the locking and unlocking process faster and more stable, and improving work efficiency.

[0018] The utility model also provides a battery-swap truck including the above-mentioned vehicle battery-swap base assembly. Since the above-mentioned vehicle battery-swap base assembly has the above-mentioned technical effects, the above-mentioned battery-swap truck should also have the same technical effects, which will not be introduced in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of a specific implementation of the vehicle battery replacement base assembly provided by the utility model;

[0020] Figure 2 A structural schematic diagram of a mounting plate in a specific implementation of a vehicle battery replacement base assembly provided by the utility model;

[0021] Figure 3 This is a schematic diagram of the bottom surface of a mounting plate in a specific implementation manner of a vehicle battery replacement base assembly provided by the utility model.

[0022] Among them, there are a base bracket 1, a cross beam 11, a longitudinal beam 12, an oblique beam 13, a connecting rod 2, a locking shaft 3, a rotating locking pin 4, a hydraulic cylinder 5, a hydraulic control system 6, a mounting plate 7, a mounting support 8, a return torsion spring 9, and a limit round table 10. DETAILED DESCRIPTION

[0023] The core of the utility model is to provide a vehicle battery swap base assembly, which converts linear motion into rotational motion through a connecting rod and a locking shaft, making the locking and unlocking process faster and more stable, thereby improving work efficiency. Another core of the utility model is to provide a battery swap truck including the above-mentioned vehicle battery swap base assembly.

[0024] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Please refer to Figures 1 to 3 , Figure 1 A structural schematic diagram of a specific implementation of the vehicle battery replacement base assembly provided by the utility model; Figure 2 A structural schematic diagram of a mounting plate in a specific implementation of a vehicle battery replacement base assembly provided by the utility model; Figure 3 This is a schematic diagram of the bottom surface of a mounting plate in a specific implementation manner of a vehicle battery replacement base assembly provided by the utility model.

[0026] The specific embodiment of the utility model provides a vehicle battery exchange base assembly, including a base bracket 1 and a linear drive, a connecting rod 2, a locking shaft 3 and a rotating locking pin 4 installed on the base bracket 1. The side of the base bracket 1 in contact with the battery pack is the top surface, and the other side is the bottom surface. The linear drive and the connecting rod 2 are located on the bottom surface of the base bracket 1, and the rotating locking pin 4 is located on the top surface of the base bracket 1. One end of the linear drive is hinged to the base bracket 1, and the other end of the linear drive is hinged to the movable end of the connecting rod 2. The fixed end of the connecting rod 2 is connected to the bottom end of the locking shaft 3, the locking shaft 3 is perpendicular to the base bracket 1, the locking shaft 3 passes through the base bracket 1, and the top end of the locking shaft 3 is connected to the rotating locking pin 4, that is, the locking shaft 3 passes through the base bracket 1 to realize the connection between the connecting rod 2 and the rotating locking pin 4. When the action end of the linear drive makes a linear motion, it will push the movable end of the connecting rod 2 to rotate around the fixed end by a certain angle, thereby driving the locking shaft 3 to rotate, converting the linear motion into rotational motion, so that the rotating locking pin 4 connected to the locking shaft 3 rotates by the same angle.

[0027] Specifically, the rotary lock pin 4 includes a rod and a head, the lower end of the rod is connected to the locking shaft 3, the head is installed at the upper end of the rod, and the length of the head is greater than the width, wherein the battery pack is installed on the top surface of the base bracket 1, and a lock slot is provided at a corresponding position on the bottom surface of the battery pack, when the battery pack is installed, the rotary lock pin 4 is inserted into the lock slot, the opening of the lock slot matches the shape of the head of the rotary lock pin 4, and the lock slot has an expansion space inside, the head of the rotary lock pin 4 is inserted from the opening of the lock slot, when the rotary lock pin 4 rotates, the length ends of the head enter the expansion space, the head of the rotary lock pin 4 is stuck inside the lock slot, and the locking is completed, when unlocking is required, the rotary lock pin 4 is rotated in the opposite direction, so that the head of the rotary lock pin 4 corresponds to the opening of the lock slot again, and the unlocking is completed, so that the battery pack can be separated from the base bracket 1. The rotary lock pin 4 of other structures can also be used, such as the head of the rotary lock pin 4 is a baffle structure extending to one side, etc., all of which are within the protection scope of the present utility model.

[0028] When the battery pack needs to be replaced, the linear drive is activated, and the linear motion is converted into rotational motion through the connecting rod 2 and the locking shaft 3, so that the rotary lock pin 4 rotates in the lock groove on the bottom surface of the battery pack, thereby locking and unlocking the battery pack, avoiding misalignment and jamming, making the locking and unlocking process faster and more stable, and improving work efficiency.

[0029] Specifically, the linear drive is a hydraulic cylinder 5, which uses hydraulic thrust, and the thrust is used to rotate the locking pin 4. The hydraulic thrust is much greater than the gas thrust, making the locking mechanism more stable. Of course, electric cylinder drive can also be used.

[0030] In the vehicle battery replacement base assembly provided in the specific embodiment of the utility model, the base bracket 1 includes two oppositely arranged cross beams 11 and two oppositely arranged longitudinal beams 12. The longitudinal beam 12 is installed in the middle of the cross beam 11 and is located below the cross beam 11, that is, the two cross beams 11 and the two longitudinal beams 12 are spliced ​​into a tic-tac-toe frame. Further, side beams are arranged at both ends of the two cross beams 11, and multiple support beams are arranged between the two cross beams 11. The support beams are located between the two longitudinal beams 12 to improve the strength of the entire base bracket 1. Furthermore, an upwardly inclined oblique beam 13 is arranged on the outer side of the longitudinal beam 12, the inner end of the oblique beam 13 is close to the outer side surface of the longitudinal beam 12, and the outer end of the oblique beam 13 is close to the horizontal end, and the vertical projections of the cross beam 11 and the corresponding oblique beam 13 coincide.

[0031] In order to stably connect the battery pack, four hydraulic cylinders 5 and four rotating lock pins 4 are arranged at the four corners of the base bracket 1, and the hydraulic cylinders 5 are located outside the longitudinal beam 12, and the hydraulic cylinders 5 are located between the two oblique beams 13 on the same side. The locking force is effectively controlled at the supporting point of the base bracket 1, thereby protecting the structure of the base bracket 1 from deformation.

[0032] Preferably, four mounting plates 7 are respectively installed at the four corners of the base bracket 1, and a mounting support 8 is installed at the outer end of each mounting plate 7. The mounting support 8 is hinged to one end of the hydraulic cylinder 5. A through hole is provided at the inner end of the mounting plate 7, and a bearing is installed in the through hole. The locking shaft 3 passes through the bearing to facilitate the rotation of the locking shaft 3. The mounting support 8, the hydraulic cylinder 5 and the connecting rod 2 are all installed on the bottom surface of the mounting plate 7, and the rotating lock pin 4 is installed on the top surface of the mounting plate 7. The modularization of the locking mechanism is realized by the mounting plate 7, and the simple structure facilitates the installation of the locking mechanism.

[0033] At the same time, a hydraulic control system 6 is installed on the bottom surface of the base bracket 1. The hydraulic control system 6 is connected to four hydraulic cylinders 5 through pipelines. Travel sensors are set at both ends of the hydraulic cylinders 5. The movement stroke of the hydraulic cylinder 5 is judged, and then whether it is locked. The signal is transmitted to the battery replacement controller through the wiring harness, making the locking mechanism safer.

[0034] On the basis of the vehicle battery swap base assembly provided in the above-mentioned specific embodiments, a return torsion spring 9 is sheathed on the locking shaft 3, and the return torsion spring 9 is located between the connecting rod 2 and the base bracket 1. The automatic return of the connecting rod 2 is effectively controlled, so that the locking mechanism is better protected in a locked state when the entire locking mechanism fails or is stationary and does not work, and the overall locking mechanism is prevented from automatically opening during bumps.

[0035] Preferably, a limited position truncated cone 10 is provided between the locking shaft 3 and the rod of the rotating lock pin 4. The head of the rotating lock pin 4 is provided with an upwardly contracted wire slope, and the force contact surface is larger, thereby protecting the overall mechanism of the rotating lock pin 4, and the force surface of the rotating lock pin 4 is an inclined surface, which makes it easier to unlock and lock the rotating lock pin 4 when it rotates.

[0036] In addition to the above-mentioned vehicle battery-swap base assembly, a specific embodiment of the utility model also provides a battery-swap truck including the above-mentioned vehicle battery-swap base assembly. For the structures of other parts of the battery-swap truck, please refer to the prior art and will not be repeated in this article.

[0037] The above is a detailed introduction to the vehicle battery swap base assembly and battery swap truck provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A vehicle battery replacement base assembly, characterized in that: The invention comprises a base support (1), a linear drive, a connecting rod (2), a locking shaft (3) and a rotating locking pin (4) mounted on the base support (1), wherein the linear drive and the connecting rod (2) are located on the bottom surface of the base support (1), and the rotating locking pin (4) is located on the top surface of the base support (1); one end of the linear drive is hinged to the base support (1), and the other end of the linear drive is hinged to the movable end of the connecting rod (2); the fixed end of the connecting rod (2) is connected to the bottom end of the locking shaft (3), the locking shaft (3) passes through the base support (1), and the top end of the locking shaft (3) is connected to the rotating locking pin (4); a battery pack is mounted on the top surface of the base support (1), and a locking groove is provided at a corresponding position on the bottom surface of the battery pack, and the rotating locking pin (4) is inserted into the locking groove; the linear drive drives the locking shaft (3) to rotate, thereby driving the rotating locking pin (4) to rotate in the locking groove, so as to lock or unlock the base support (1) and the battery pack.

2. The vehicle battery replacement base assembly according to claim 1, characterized in that: The linear drive is specifically a hydraulic cylinder (5).

3. The vehicle battery replacement base assembly according to claim 2, characterized in that: The base support (1) comprises two oppositely arranged transverse beams (11) and two oppositely arranged longitudinal beams (12), wherein the longitudinal beams (12) are installed in the middle of the transverse beams (11) and are located below the transverse beams (11), and an upwardly inclined oblique beam (13) is arranged outside the longitudinal beams (12), and the outer ends of the oblique beams (13) are close to the ends of the transverse beams, and the vertical projections of the transverse beams (11) and the corresponding oblique beams (13) overlap.

4. The vehicle battery replacement base assembly according to claim 3, characterized in that: It comprises four hydraulic cylinders (5) and four rotating lock pins (4) respectively arranged at the four corners of the base support (1), wherein the hydraulic cylinder (5) is located outside the longitudinal beam (12), and the hydraulic cylinder (5) is located between the two inclined beams (13) on the same side.

5. The vehicle battery replacement base assembly according to claim 4, characterized in that: A hydraulic control system (6) is installed on the bottom surface of the base bracket (1); the hydraulic control system (6) is respectively connected to the four hydraulic cylinders (5) via pipelines; and stroke sensors are provided at both ends of the hydraulic cylinders (5).

6. The vehicle battery replacement base assembly according to claim 5, characterized in that: It comprises four mounting plates (7) respectively mounted on the four corners of the base bracket (1), the outer end of the mounting plate (7) is mounted with a mounting support (8), the mounting support (8) is hinged to one end of the hydraulic cylinder (5), the inner end of the mounting plate (7) is provided with a through hole, a bearing is mounted in the through hole, and the locking shaft (3) passes through the bearing.

7. The vehicle battery swap base assembly according to any one of claims 1 to 6, characterized in that: The locking shaft (3) is sheathed with a return torsion spring (9), and the return torsion spring (9) is located between the connecting rod (2) and the base bracket (1).

8. The vehicle battery replacement base assembly according to claim 7, characterized in that: A limiting truncated cone (10) is provided between the locking shaft (3) and the rod portion of the rotating locking pin (4).

9. The vehicle battery replacement base assembly according to claim 8, characterized in that: The head of the rotating lock pin (4) is provided with a wire slope that converges upwards.

10. A battery-swap truck, characterized in that: It comprises a vehicle battery swap base assembly as described in any one of claims 1 to 9.

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