CN116022098A - Front-mounted power exchange equipment and power exchange station - Google Patents

Abstract

The present disclosure provides a front-end power conversion apparatus and a power conversion station. The front-mounted power conversion equipment comprises a frame, a cantilever beam and a grabbing mechanism, wherein the cantilever beam is movably connected with the frame. The grabbing mechanism comprises grabbing pieces, a traction rope and a supporting component, wherein the traction rope is connected with the cantilever beam, the free end of the traction rope is connected with the grabbing pieces, and the supporting component is connected with the grabbing pieces and used for guiding the grabbing pieces to move along the vertical direction; the grabbing piece is used for being matched with the hoisting component of the battery box so as to drive the battery box to move along the vertical direction under the traction of the traction rope. The grabbing piece of the front-mounted power conversion equipment and the grabbing piece of the power conversion station are connected with the cantilever beam through the traction rope, and the grabbing piece has a larger moving stroke in the vertical direction. Moreover, the grabbing piece is connected through the traction rope, so that the weight of the part of the battery replacement equipment, from which the cantilever beam is hung, is reduced, the balance of the weight distribution of the battery replacement equipment is improved, and the tilting risk of the battery replacement equipment is reduced.

Description

Front-mounted power exchange equipment and power exchange station

Technical Field

The disclosure relates to the field of power conversion, in particular to a front-mounted power conversion device and a power conversion station.

Background

The replaceable battery compartment is typically secured to the battery rack of the vehicle by a removable mounting. The vehicle is used for replacing the battery box through the battery replacement equipment. And after the replaced battery box is charged, the battery box is reinstalled on the vehicle through the battery replacement equipment. For electric trucks, particularly heavy electric trucks, the battery compartment of an electric truck is often replaceable. When the battery box of the vehicle needs to be replaced, the vehicle runs into the power exchange station, and the replacement of the battery box can be completed through the power exchange equipment.

In the front-mounted battery exchange device, the battery box is loaded in the moving direction of the battery exchange device in the process of carrying the battery box, for example, the front or rear of the battery box in the moving direction of the battery exchange device can be loaded. The opposite side-shifting type power conversion equipment with the structure has more compact structure and smaller occupied area. In the process of power exchange operation, the battery box needs to be carried along the vertical direction through the grabbing mechanism. The conventional battery exchange equipment generally has the problems that an air cylinder or a hydraulic cylinder is mounted in the moving direction of the battery exchange equipment, or a battery box is moved along the vertical direction by connecting a motor with a ball screw, but the moving stroke of the structure in the vertical direction is limited, the volume and the weight are large, the overall weight distribution of the battery exchange equipment is unbalanced, and particularly in the state of carrying the battery box, the weight distribution of the battery exchange equipment in the moving direction is unbalanced, so that the toppling phenomenon is easy to occur.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a front-end power conversion device and a power conversion station, which aim to solve the problem that the travel of the gripping mechanism of the existing power conversion device is limited.

The present disclosure first provides a front-end battery exchange device, including:

a frame arranged to move in a first direction;

a cantilever beam movably connected to the frame in a second direction perpendicular to the first direction;

the grabbing mechanism comprises grabbing pieces, a traction rope and a supporting component, wherein the traction rope is connected with the cantilever beam, the free end of the traction rope is connected with the grabbing pieces, and the supporting component is connected with the grabbing pieces and used for guiding the grabbing pieces to move along the vertical direction; the grabbing piece is used for being matched with the hoisting component of the battery box so as to drive the battery box to move along the vertical direction under the traction of the traction rope.

According to the front-mounted battery replacing device, the supporting assembly comprises a scissor, one end of the scissor is connected with the cantilever beam, and the other end of the scissor is connected with the grabbing piece. In some embodiments, the support assembly includes a grasping rail and a grasping slide, one of the grasping rail and the grasping slide being connected to the grasping element, the other being connected to the cantilever beam for guiding the grasping element to move in a vertical direction. In other embodiments, the length of the cantilever extends in the first direction and the outer end overhangs the frame; the fixed end of the traction rope is connected with the cantilever beam, and the free end extends to be connected with the grabbing piece along the length direction of the cantilever beam.

According to the front-mounted battery replacing device, the grabbing mechanism further comprises a gravity balancing device, the gravity balancing device is located at the inner end of the cantilever, and the fixed end of the traction rope is connected with the gravity balancing device.

According to the front-mounted battery replacing device, the grabbing mechanism further comprises a plurality of driving wheels, the fixed end of the traction rope is connected with the gravity balancing device, and the free end extends along the length direction of the cantilever beam and is connected with the grabbing piece in the vertical direction after bypassing the driving wheels.

According to the front-mounted battery replacing device, the grabbing mechanism further comprises a driving wheel, a driving rope and a coiling machine, wherein the coiling machine is located at the inner end of the cantilever beam and connected with the driving wheel, the driving wheel is rotationally connected with the cantilever beam, and the driving rope bypasses the driving wheel and is connected with the traction rope.

According to the front-mounted power conversion equipment, the driving wheel is connected with at least one driving wheel, the driving rope bypasses the driving wheel, and the driving wheel drives the driving wheel to rotate so as to pull the traction rope to move.

The front-mounted battery replacing device further comprises a traveling mechanism, wherein the traveling mechanism is connected with the frame and used for driving the frame to move along a first direction.

In addition, the present disclosure also provides a power exchange station, including:

the front-mounted power conversion equipment;

the front-mounted power conversion equipment is movably arranged in the roadway;

the battery seat is used for storing the battery box and is arranged on at least one side of the roadway.

The power exchange station further comprises a parking space, wherein the parking space is positioned at the end part of the roadway and is used for parking vehicles.

Compared with the prior art, the grabbing piece of the front-mounted battery replacement device and the grabbing piece of the battery replacement station are connected with the cantilever beam through the traction rope, so that the battery box can be carried along the vertical direction. Since the movement travel of the gripping element is no longer limited by the travel of the other components, by setting a suitable travel range of the traction rope, the gripping element has a greater movement travel in the vertical direction. Moreover, the grabbing piece is connected through the traction rope, so that the weight of the part of the battery replacement equipment, from which the cantilever beam is hung, is reduced, the balance of the weight distribution of the battery replacement equipment is improved, and the tilting risk of the battery replacement equipment is reduced. The front-mounted power exchange equipment and the power exchange station are simple and compact in structure, convenient to install, easier to maintain and capable of reducing the cost of the whole power exchange station.

Drawings

In order to more clearly illustrate the embodiments, the drawings that are required to be used in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are some examples of the present disclosure and that other drawings may be obtained from these drawings by persons of ordinary skill in the art without inventive work.

Fig. 1 is a schematic structural diagram of a power exchange station.

Fig. 2 is a schematic structural diagram of the power conversion apparatus.

Fig. 3 is a schematic diagram of the structure of the frame and running gear of the battery exchange device.

Fig. 4 is a schematic structural view of a frame and a traversing mechanism of the battery changing apparatus.

Fig. 5 is a schematic structural view of a gripping mechanism of the battery changing device.

Fig. 6 is a schematic diagram of the structure of the gripper mechanism haulage rope, the drive wheel and the coiler.

Fig. 7 is a schematic view of the structure of the grasping mechanism in another embodiment.

Description of the main reference signs

The following detailed description will further illustrate the disclosure in conjunction with the above-described drawings.

Detailed Description

In order that the above-recited objects, features and advantages of the present disclosure may be more clearly understood, a detailed description of the present disclosure will be rendered by reference to the appended drawings and appended drawings. In addition, embodiments of the present application and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, and the described embodiments are merely some, rather than all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In various embodiments, for ease of description and not limitation of the present disclosure, the term "coupled" as used in the specification and claims of this disclosure is not limited to a physical or mechanical connection, but may include an electrical connection, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship is changed accordingly.

Fig. 1 is a schematic structural diagram of a power exchange station. As shown in fig. 1, the power plant comprises a front-end power plant 30 and a frame 10. The frame 10 includes a plurality of laterally and longitudinally extending beams that are interconnected to form the frame 10 structure. The interior of the frame 10 has a tunnel (not shown), a parking space (the location where the vehicle 20 is parked in fig. 1), and a plurality of battery holders 41. The roadway is located in the middle of the frame 10, and the front-mounted power conversion device 30 is movably disposed in the roadway and can move back and forth along the length direction of the roadway. The battery holders 41 are used for storing the battery boxes 40, and in this embodiment, each battery holder 41 may correspondingly place one battery box 40, but those skilled in the art may correspondingly set a plurality of battery boxes 40 as required. The battery holders 41 are provided on at least one side of the tunnel, and in this embodiment, a plurality of battery holders 41 are provided on both sides of the tunnel in the width direction. The parking space is located at an end of the tunnel for parking the vehicle 20.

In use, the vehicle 20 travels generally in a direction perpendicular to the length of the roadway to the parking space and rests on the parking space. The front-mounted battery replacing device 30 moves along the length direction of the roadway, and after the battery box 40 on the vehicle 20 is disassembled, the front-mounted battery replacing device moves to the battery seats 41 on the two sides; and then the full battery box 40 on the battery seat 41 is conveyed to the vehicle 20 along the roadway, so that the battery replacement operation of the vehicle 20 is completed.

Fig. 2 is a schematic structural diagram of the front-mounted battery exchange device 30. As shown in fig. 2, the front-mounted battery exchange apparatus 30 includes a frame 31, a traveling mechanism 32, a traversing mechanism, and a gripping mechanism 34. The travelling mechanism 32 is used for driving the front-mounted battery changing device 30 to move along the length direction (first direction, namely, the X direction shown in fig. 2) of the roadway, and the traversing mechanism is used for moving the grabbing mechanism 34 to move along the transverse direction (second direction, namely, the Y direction shown in fig. 2). The gripping mechanism 34 is used to handle the battery box 40 for movement in the vertical direction (i.e., Z direction).

In the present embodiment, the frame 31 has a frame 10-like structure, and the bottom is connected to the traveling mechanism 32 to move in the X direction in the roadway. The rack 31 is provided with two T-shaped frames 10, and the two frames 10 are connected through a plurality of connecting beams which extend horizontally, so that the rack 31 has higher supporting strength, and deformation of the rack 31 in the process of carrying the battery box 40 is avoided.

Fig. 3 is a schematic structural view of the chassis 31 and the traveling mechanism 32 of the front-mounted battery exchange device 30. As shown in fig. 2 and 3, the travelling mechanism 32 is connected to the frame 31, and is configured to drive the frame 31 to move along the first direction. The traveling mechanism 32 comprises a traveling motor 321, a traveling chain 322, traveling wheels 323 and traveling guide rails 324. The walking motor 321 is mounted at the bottom of the frame 31, the walking chain 322 extends in the roadway along the length direction of the roadway, and two ends of the walking chain are fixedly connected to other objects. The travel motor 321 is engaged with the chain through a sprocket, so that the frame 31 can be pulled to move back and forth along the length direction of the roadway by bypassing the chain. The number of the traveling wheels 323 is plural, for example, four, and each traveling wheel may be rotatably connected to the bottom of the frame 31. The traveling rail 324 is disposed in the roadway and includes two parallel traveling rails. The cross section of the traveling guide rail 324 is in a T-shaped structure, the rotating surface of the traveling wheel 323 rotates on the top surface of the traveling guide rail 324, and traveling action is realized under the traction of the traveling motor 321 and the traveling chain 322. In addition, in order to prevent the chassis 31 from overturning and separating from the walking rail 324, in this embodiment, the walking mechanism 32 further includes one or more sets of guide wheel sets including a pair of guide wheels 325, and the guide wheels 325 are rotatably connected to the chassis 31 and clamp both sides of the walking rail 324, so that the stability of the front-mounted power exchanging apparatus 30 can be improved.

Fig. 4 is a schematic structural view of the frame 31 and the traversing mechanism of the front-mounted battery exchange device 30. As shown in fig. 2 and 4, the traversing mechanism includes a cantilever beam 33, and traversing guide rails 331 and traversing sliders 332 for laterally moving and connecting the cantilever beam 33 and the frame 31, and traversing motors 333, traversing gears 334, and traversing racks 335 for driving the cantilever beam 33 to laterally move.

The cantilever beam 33 is generally in a beam-column structure, one end of the cantilever beam 33 is movably connected to the frame 31 along the second direction through a traverse guide 331 and a traverse slider 332, and the length direction of the cantilever beam 33 extends along the first direction and is suspended from the frame 31. Specifically, the top of the frame 31 has a pair of traverse rails 331 extending in parallel with each other in the second direction, and the end of the cantilever beam 33 is provided with a plurality of traverse sliders 332, and the traverse sliders 332 are movably connected to the traverse rails 331 such that the cantilever beam 33 can be laterally moved in the second direction (i.e., Y direction) by the traverse sliders 332 and the traverse rails 331. To drive the cantilever beam 33 to move laterally, a traversing motor 333 is mounted on the cantilever beam 33, and a traversing rack 335 extends in a second direction and is coupled to the frame 31, the traversing motor 333 engaging the traversing rack 335 via a traversing gear 334 to draw the cantilever beam 33 back and forth in the second direction.

Fig. 5 is a schematic structural view of the gripping mechanism 34 of the front-mounted battery exchange device 30. As shown in fig. 2 and 5, the grabbing mechanism 34 is configured to cooperate with a lifting component of the battery box 40 to drive the battery box 40 to move in a vertical direction.

Specifically, the gripping mechanism 34 includes a gripping member 344, a supporting assembly, a traction rope 342 for balancing and driving the gripping member 344 to move in a vertical direction, a driving wheel 345, and a gravity balancing device 348, a coiler 341 for driving the traction rope 342 to move, a driving rope 349, and a driving wheel 3410. The grabbing piece 344 is used for being matched with a lifting component of the battery box 40, so that connection of the battery box 40 is achieved. The support assembly is used to assist in guiding the gripper 344 back and forth in a vertical direction relative to the cantilever beam 33.

In this embodiment, the bottom of the grabbing piece 344 is provided with a plurality of hooks, and the hooks can hook the hanging parts of the battery box 40, such as the cross beam or other hanging holes of the battery box 40, so as to connect the battery box 40 by matching with the movement of the grabbing piece 344. The support assembly is connected to the grabbing piece 344 for guiding the grabbing piece 344 to move in the vertical direction. The gripping member 344 is configured to cooperate with a hoisting member of the battery box 40 to drive the battery box 40 to move in a vertical direction under the traction of the traction rope 342. Illustratively, in this embodiment, the support assembly includes a shear 343, one end of the shear 343 being connected to the cantilever beam 33 and the other end being connected to the grasping member 344. In this way, the movement of the grabbing piece 344 can be stabilized by the expansion and contraction of the scissors 343 during the lifting and lowering of the grabbing piece 344, preventing the grabbing piece 344 from being severely shaken during the movement.

Fig. 6 is a schematic view of the structure of the traction rope 342, the transmission pulley 345 and the gravity balance 348 of the grasping mechanism 34, as well as the reel 341, the driving pulley 3410 and the driving rope 349. As shown in fig. 5 and 6, the coiler 341 is mounted at an end position of the cantilever 33 near the frame 31. By way of example, the drive line 349 may be a chain, a connecting line, or other connecting structure. The number of driving wheels 3410 may be plural, and may be a pulley, a sprocket, or the like, corresponding to the driving rope 349. Drive wheel 3410 is rotatably coupled to a cantilever beam and drive line 349 passes around drive wheel 3410 to form a closed loop. The output shaft of the coiler 341 is connected to a driving wheel 3410, so that the driving rope 349 can be driven by the driving wheel 3410 to move, and the other driving wheels 3410 are synchronously driven to rotate.

The gravity balance 348 is used for a machine that achieves a gravity-free state of the object, and has a function of balancing the gravity of the gripping member and the battery box. In some embodiments, the gravity balancing device 348 may be a gas balancing device, also known as a gas spring, which is a device that utilizes the principle of gas dynamics to achieve the gravity balancing function. In other embodiments, the gravity balancing device 348 may also be a hydraulic balancing device, and other types of gravity balancing devices may be used by those skilled in the art. In this embodiment, the gravity balance 348 is located at the inner end of the cantilever beam. In order to balance the weight distribution of the battery changing device 30, the gravity balancing device 348 and the coiler 341 may be disposed at a portion of the inner end of the cantilever beam above the frame 31, or may be directly disposed on the frame 31; the inner end of the cantilever beam is overhanging the frame 31 along the direction far away from the outer end under the condition of space permission, and the gravity balancing device 348 and the coiling machine 341 are preferably arranged at the part of the inner end of the cantilever beam overhanging the frame 31, so that an opposite force arm is formed with the grabbing piece and the battery box, and the force arm of the grabbing piece and the battery box to the frame 31 is counteracted, so that the weight distribution of the battery replacing equipment 30 can be balanced better, and the stability of the battery replacing equipment 30 is improved. The transmission wheel 345 may be a pulley, a sprocket, or the like, and is two in number and is rotatably connected to the cantilever beam 33. One end (fixed end) of the hauling rope 342 is connected with a gravity balancing device 348, the other end (free end) bypasses the driving wheel 345, and the free end of the hauling rope 342 extends along the length direction of the cantilever beam 33 after bypassing the driving wheel 345 and is connected with the grabbing piece 344 along the vertical direction after bypassing the driving wheel 345 again. In this embodiment, the number of the driving wheels 345 is four, three of which are rotatably disposed near the inner end of the cantilever beam 33, and the traction rope 342 passes around one side of the driving wheels 345 from below, passes around the middle driving wheel 345 from above, and then passes around the other side of the driving wheels 345 from below, so that the traction rope 342 can be meshed with the middle driving wheel 345 to have a larger enveloping angle, and the middle driving wheel 345 is connected with the driving wheel 3410 to serve as a driving wheel, thereby preventing the traction rope 342 from moving relatively (i.e. jumping teeth) relative to the driving wheel 345.

In operation, the coiler 341 drives the driving wheel 3410 to rotate, the driving wheel 3410 drives the other driving wheels 3410 to synchronously rotate through the driving rope 349342, the driving wheel 3410 drives at least one driving wheel 345 to rotate when rotating, the driving wheel 345 can drive the hauling rope 342 to move, and the hauling rope 342 bypasses the driving wheel 345 and then drives the grabbing piece 344 to move in the vertical direction. During the transmission of the traction rope 342, the traction rope 342 and the transmission wheel 345 are prevented from relative movement due to the large envelope length of the traction rope 342 around the two transmission wheels 345.

Fig. 7 is a schematic view of the structure of the grasping mechanism 34 in another embodiment. As shown in fig. 7, the support assembly includes a grabbing rail 346 and a grabbing slider 347, one of the grabbing rail 346 and the grabbing slider 347 is connected to the grabbing piece 344, and the other is connected to the cantilever beam 33, for guiding the grabbing piece 344 to move in the vertical direction. Specifically, in the present embodiment, the pair of gripping rails 346 are respectively disposed on both sides of the cantilever beam 33, and extend in the vertical direction to be connected to the gripping members 344; correspondingly, a plurality of gripping sliders 347 are respectively connected to two sides of the cantilever beam 33, so that the guide rail can be movably connected to the cantilever beam 33 through the sliders. During the movement of the gripper 344 in the vertical direction, the gripper 344 may be guided and supported by the gripper rail 346 and the gripper slide 347, the gripper 344 being placed to shake during the movement.

In operation, the vehicle 20 travels to a parking space, the front-mounted battery replacing device 30 moves along a roadway to a position close to the vehicle 20, then the cantilever beam 33 moves transversely to a position of the grabbing mechanism 34 corresponding to the battery box 40 of the vehicle 20, and the grabbing mechanism 34 moves in the vertical direction until the grabbing piece 344 hooks the battery box 40, and then the grabbing mechanism 34 lifts the battery box 40, so that the battery box 40 is separated from the vehicle 20.

Then, the travelling mechanism 32 moves to the position of the battery holder 41 where the battery box 40 is placed, and at the same time, the cantilever beam 33 moves laterally until the battery box 40 moves to the position corresponding to the battery holder 41, and the grabbing mechanism 34 moves in the vertical direction to place the battery box 40 on the battery holder 41, so as to complete the action of disassembling the battery box 40.

Finally, the cantilever beam 33 moves laterally, the full battery box 40 is obtained through the grabbing mechanism 34, and the cantilever beam moves to the vehicle 20, so that the whole power conversion process is completed. Since the process of storing the battery box 40 in the vehicle 20 is similar to the process of taking out the battery box 40, the description thereof will be omitted.

The front-mounted battery replacing device 30 and the battery replacing station are movably connected with the rack 31 along the second direction through the cantilever beam 33, the battery box 40 is carried along the vertical direction through the grabbing mechanism 34, and when the battery replacing device is used, the grabbing mechanism 34 is moved to the upper side of the battery box 40 through the cantilever beam 33 along the second direction, so that the grabbing mechanism 34 can grab the battery box 40, the battery box 40 is moved to the vehicle 20 or the battery box 40 detached from the vehicle 20 is moved to a destination, and the battery replacing operation of the vehicle 20 is completed. Since the movement stroke of the grasping member 344 is no longer limited to the strokes of other members, by setting a suitable movement range of the pulling rope 342, the grasping member 344 has a large movement stroke in the vertical direction. Moreover, the grabbing piece 344 is connected through the traction rope 342, so that the weight of the part, extending out from the connecting cantilever beam 33, of the battery changing device 30 is reduced, the balance of the weight distribution of the battery changing device 30 is improved, and the risk of dumping of the battery changing device 30 is reduced. The prepositive power exchanging device 30 and the power exchanging station are simple and compact in structure, convenient to install, easier to maintain and capable of reducing the cost of the whole power exchanging station.

Further, in the present embodiment, by connecting the fixed end of the traction rope 342 to the gravity balance 348, at least part of the weight of the grasping member 344 and the battery box 40 can be balanced, and the power consumption of the coiler 341 can be reduced. Moreover, since the gravity balance 348 may be provided on the cantilever beam 33, the cantilever beam 33 is not hindered from moving laterally in the second direction. Simultaneously, the gravity balancing device 348 and the coiling machine 341 are connected through the driving rope 349 and the traction rope 342, so that the gravity balancing device 348 and the coiling machine 341 can be installed at the inner end of the cantilever beam 33, and can be located above the frame 31, preferably away from the free end, so that the force arm of the grabbing piece 344 and the battery box 40 can be at least partially offset, the stability of the battery replacing equipment 30 is further improved, and the tilting risk of the battery replacing equipment 30 is reduced.

In the several specific implementations provided in the present disclosure, it will be apparent to those skilled in the art that the present disclosure is not limited to the details of the above-described exemplary embodiments, and that the present disclosure may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the disclosure being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. The terms first, second, etc. are used to denote a name, but not any particular order.

The above embodiments are merely for illustrating the technical aspects of the present disclosure, and although the present disclosure has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical aspects of the present disclosure.

Claims (11)

1. A front-end battery exchange device, comprising:

a frame arranged to move in a first direction;

a cantilever beam movably connected to the frame in a second direction perpendicular to the first direction;

the grabbing mechanism comprises grabbing pieces, a traction rope and a supporting component, wherein the traction rope is connected with the cantilever beam, the free end of the traction rope is connected with the grabbing pieces, and the supporting component is connected with the grabbing pieces and used for guiding the grabbing pieces to move along the vertical direction; the grabbing piece is used for being matched with the hoisting component of the battery box so as to drive the battery box to move along the vertical direction under the traction of the traction rope.

2. The front-end battery exchange apparatus of claim 1 wherein said support assembly comprises a scissor fork having one end connected to said cantilever beam and the other end connected to said grasping member.

3. The front-mounted battery exchange device of claim 1, wherein the support assembly comprises a grabbing guide rail and a grabbing sliding block, one of the grabbing guide rail and the grabbing sliding block is connected with the grabbing piece, and the other grabbing guide rail and the grabbing sliding block are connected with the cantilever beam and used for guiding the grabbing piece to move in the vertical direction.

4. The front-mounted battery exchange device of claim 1, wherein the length direction of the cantilever beam extends in the first direction and the outer end is cantilevered from the frame; the fixed end of the traction rope is connected with the cantilever beam, and the free end extends to be connected with the grabbing piece along the length direction of the cantilever beam.

5. The front-end battery exchange apparatus as set forth in claim 4, wherein the gripping mechanism further comprises a gravity balance device located at an inner end of the cantilever beam, and the fixed end of the traction rope is connected to the gravity balance device.

6. The pre-charge exchange device of claim 5 wherein the gripping mechanism further comprises a plurality of drive wheels, the fixed end of the haulage rope is connected to the gravity balancing device, and the free end extends along the length direction of the cantilever beam and bypasses the drive wheels to connect the gripping member in the vertical direction.

7. The front-mounted battery exchange apparatus of claim 6 wherein the gripping mechanism further comprises a drive wheel, a drive rope, and a reel, the reel being located at an inner end of the cantilever beam and connected to the drive wheel, the drive wheel being rotatably connected to the cantilever beam, the drive rope bypassing the drive wheel and being connected to the traction rope.

8. The front-mounted battery exchange device according to claim 7, wherein the driving wheel is connected with at least one driving wheel, the driving rope bypasses the driving wheel, and the driving wheel pulls the traction rope to move by driving the driving wheel to rotate.

9. The front-mounted battery exchange device of claim 1, further comprising a traveling mechanism coupled to the frame for driving the frame to move in a first direction.

10. A power exchange station, comprising:

a front-end battery exchange device according to any one of claims 1-9;

the front-mounted power conversion equipment is movably arranged in the roadway;

the battery seat is used for storing the battery box and is arranged on at least one side of the roadway.

11. The power exchange station of claim 10, further comprising a parking space at an end of the tunnel for parking a vehicle.

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