CN113715674A

CN113715674A - Battery replacing device and battery replacing station

Info

Publication number: CN113715674A
Application number: CN202110875330.5A
Authority: CN
Inventors: 高志明; 蒙祀凯; 舒标
Original assignee: Sany Heavy Industry Co Ltd
Current assignee: Sany Lithium Energy Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-30
Anticipated expiration: 2041-07-30
Also published as: CN113715674B

Abstract

The invention provides a battery replacing device and a battery replacing station, which relate to the technical field of vehicle battery replacement and comprise the following components: a traveling mechanism; the first seat body is arranged on the travelling mechanism through the swing mechanism; the first grabbing mechanism and the second grabbing mechanism are arranged on the first seat body side by side, and are both provided with a butt joint structure for butt joint with the battery module, and the grabbing directions of the first grabbing mechanism and the second grabbing mechanism are the same; and the first driving mechanism is used for driving the first grabbing mechanism and the second grabbing mechanism to respectively displace along the first track and the second track. The battery replacing device can take out the fully charged battery module for standby before the vehicle arrives, so that the waiting time of the vehicle is reduced. In the rotating process of the first base, the first grabbing mechanism and the second grabbing mechanism can be retracted to the first base body, the turning radius is shortened, the occupied space of the first base body is reduced, and the occupied area of the power exchanging station is further reduced.

Description

Battery replacing device and battery replacing station

Technical Field

The invention relates to the technical field of vehicle battery replacement, in particular to a battery replacement device and a battery replacement station.

Background

The electric vehicle conforms to the trend of energy conservation and environmental protection, greatly facilitates short-distance traffic, and plays an important role in national economy mainly through energy conservation and environmental protection. As is well known, the development of the electric vehicle is severely restricted by overlong charging time of the electric vehicle, and in order to solve the problem of overlong charging time of the electric vehicle, batteries of the electric vehicle are replaced by adopting a battery replacement mode in the prior art.

At trading electric in-process, the electric motor car stops to be put in and trades the electricity station after, trades the electric device and just can take out and place in retrieving the storehouse with the insufficient voltage's battery module to just can take out the battery module of full electricity and install in the electric motor car from the storage compartment after placing the battery module of insufficient voltage in retrieving the storehouse, lead to trading the electric time long, trade the electric inefficiency. Therefore, the technical problems to be solved urgently by those skilled in the art are solved by solving the problems of long battery replacement time and low battery replacement efficiency of the battery replacement device in the prior art.

Disclosure of Invention

The invention provides a battery replacing device capable of shortening battery replacing time and improving battery replacing efficiency, which is used for overcoming the defects of long battery replacing time and low battery replacing efficiency of the battery replacing device in the prior art and realizing the effect of efficiently replacing batteries.

The invention provides a battery replacement device, comprising: a traveling mechanism; the first seat body is arranged on the travelling mechanism through a swing mechanism, and the swing mechanism is used for driving the first seat body to rotate; the first grabbing mechanism and the second grabbing mechanism are arranged on the first base body side by side, the first grabbing mechanism and the second grabbing mechanism are respectively provided with a butt joint structure for butt joint with a battery module, and the grabbing directions of the first grabbing mechanism and the second grabbing mechanism are the same; the first driving mechanism is used for driving the first grabbing mechanism and the second grabbing mechanism to respectively displace along a first track and a second track, and the first track is parallel to the second track.

According to the battery replacing device provided by the invention, the first grabbing mechanism and the second grabbing mechanism can move between the battery compartment and the vehicle and pick and place the battery module through the traveling mechanism, the rotating mechanism, the first driving mechanism and the like. Wherein, running gear can make first snatch the mechanism and can align with the battery mounted position of vehicle respectively to take out the battery module of insufficient power and place the battery module of full power to the battery mounted position from the battery mounted position. The swing mechanism can adjust the grabbing directions of the first grabbing mechanism and the second grabbing mechanism. After the vehicle parking position is inclined, the slewing mechanism can enable the battery replacing device to rotate to be parallel to the battery. The first drive mechanism is capable of translating the first and second grasping mechanisms.

Through setting up first snatching the mechanism and snatching the mechanism with the second, trade the electric in-process, first snatchs the mechanism and can get the battery module that full electricity from battery gets the position before the vehicle does not reach trades the electricity station. After the vehicle reaches the battery replacing station, the second grabbing mechanism can directly take out the battery module in the vehicle, and then the fully charged battery module is placed into the vehicle through the first grabbing mechanism to complete the battery replacing process.

Compared with the battery replacing device in the prior art, the battery replacing device can take out the fully charged battery module for standby before the vehicle arrives, so that the waiting time of the vehicle is reduced, the battery replacing time is shortened, and the battery replacing efficiency is improved. In addition, when the first grabbing mechanism and the second grabbing mechanism take and place batteries in the battery compartment, the batteries in the corresponding compartment can be taken and placed only by rotating angles without walking, and the battery changing time is shortened. The battery replacement efficiency is improved.

In addition, first guiding mechanism and second guiding mechanism set up side by side, can make first pedestal along the ascending size of first guiding mechanism or second guiding mechanism extending direction littleer to reduce and trade the area of electric installation, and then reduce the area who trades the power station.

In addition, it is important to point out that the first grabbing mechanism and the second grabbing mechanism provided by the invention are arranged side by side, when the first base rotates, the first grabbing mechanism and the second grabbing mechanism can be in a retraction state, the rotation radius is effectively shortened, the battery compartment can be arranged around the battery replacing device in a short distance, and the area occupied by the battery replacing station is further obviously reduced.

The battery replacing device provided by the invention further comprises a lifting mechanism, and the lifting mechanism is used for driving the first base body to lift.

The first seat body is driven to lift through the lifting mechanism, so that the battery replacing device can be compatible with vehicles with different heights, and batteries of the vehicles with different height specifications can be replaced.

According to the battery replacing device provided by the invention, the walking mechanism comprises: the first seat body is arranged on the second seat body through the swing mechanism; the travelling wheel is rotatably arranged at the bottom of the second seat body; and the second driving mechanism is used for driving the travelling wheels to rotate.

So set up, running gear's structure is simpler to through setting up running gear, can make first snatch the mechanism and the second snatch the mechanism and adjust well with the battery installation position of vehicle respectively, so that get and put battery module.

According to the battery replacement device provided by the invention, the travelling mechanism further comprises a third guide structure matched with the travelling wheel.

Through setting up the third guide structure who trades the wheel matched with the setting, can go to control more conveniently, accurately and trade electric installation's advancing direction.

According to the battery replacement device provided by the invention, the second driving mechanism comprises a motor, and an output shaft of the motor is in transmission connection with the traveling wheel so as to drive the traveling wheel to rotate.

So set up, second actuating mechanism's simple structure can convenient and fast ground drive trade the electric installation and advance.

According to the battery replacement device provided by the invention, the first base is provided with the first guide structure and the second guide structure which are arranged side by side, the extension directions of the first guide structure and the second guide structure are parallel, and the first grabbing mechanism and the second grabbing mechanism are matched with the first guide structure and the second guide structure in a one-to-one correspondence manner.

The running directions of the first grabbing mechanism and the second grabbing mechanism can be conveniently and accurately controlled through the first guide structure and the second guide structure.

According to the battery replacement device provided by the invention, the first guide structure and the second guide structure are symmetrical about the rotation center of the first base.

Through setting up first guide structure and second guide structure symmetrically in the both sides of the centre of rotation of first pedestal, then first snatch the mechanism and the second snatchs the mechanism and also distribute in the both sides of first pedestal centre of rotation, so first snatch the mechanism and the second snatchs the gravity of mechanism and can offset each other to avoid the problem of first pedestal lateration to a certain extent at least.

According to the battery replacing device provided by the invention, the first grabbing mechanism and the second grabbing mechanism both comprise:

the vertical supporting seat is arranged on the first seat body;

the butt joint structure comprises a vertical supporting seat, a side-changing gripper device and a top-changing gripper device, wherein the side-changing gripper device is arranged on the side face of the vertical supporting seat, the top-changing gripper device is arranged on the top of the vertical supporting seat, and the side-changing gripper device and the top-changing gripper device are both provided with butt joint structures.

The side-changing gripper can be connected with the side part of the battery module, so that the side-changing operation is completed, and the side-changing vehicle is compatible with a side-changing vehicle. The top-changing gripper can be connected with the top of the battery module, so that top-changing operation is completed, and the top-changing type vehicle is compatible. Therefore, the battery replacing device can perform side replacing operation on the battery module and top replacing operation on the battery module, can adapt to vehicles with different battery replacing modes, and has a wider application range.

According to the battery replacement device provided by the invention, the first driving mechanism comprises a lead screw nut driving mechanism or a gear rack driving mechanism or a linear driving cylinder. So set up, first actuating mechanism's simple structure.

The invention provides a battery replacing station which comprises a battery bin and a battery replacing device as described in any one of the above; the battery compartment is provided with a plurality of battery compartments, each battery compartment can contain a pair of battery modules, the plurality of battery compartments are distributed annularly, the battery replacing device is arranged in an annular space formed by the battery compartments, a parking position for stopping a vehicle is arranged on the outer side of the annular space, and an opening corresponding to the parking position is formed in the annular space.

According to the battery replacement station, the battery replacement device is arranged, so that the problems of long battery replacement time and low battery replacement efficiency of the battery replacement device in the prior art are solved. Through the arrangement of the battery bins which are distributed in an annular mode, the battery replacing device can take out fully charged battery modules from the battery bins in sequence, or place the battery modules which are taken out from the vehicle and lack of power into the idle battery bins in sequence. The battery bins distributed annularly can improve the utilization rate of space, and compared with the battery bins arranged in a plane, the battery replacing device in the battery replacing station basically only needs to rotate in situ, has short translation distance, and can reduce the floor area of the battery replacing station.

And, first snatch the mechanism and snatch the mechanism for setting up side by side with the second, when first base gyration, first snatch the mechanism and snatch the mechanism with the second and can be in the withdrawal state, has effectively shortened radius of gyration, and the battery compartment can be arranged more closely ground and trade electric installation around, and then has obviously reduced and trade the shared area of power station.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a power swapping device in some embodiments provided by the present invention;

fig. 2 is a schematic structural diagram of a swapping station in some embodiments provided by the present invention;

reference numerals:

1: a first seat body; 2: a first grasping mechanism; 3: a second grasping mechanism;

4: a battery module; 5: a first guide structure; 6: a second guide structure;

7: a second seat body; 8: a third guide structure; 9: a vehicle;

10: a cantilever member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following describes the battery swapping device provided in the embodiment of the present invention with reference to fig. 1 to 2.

Specifically, the battery replacing device includes a traveling mechanism, a first seat 1, a first grabbing mechanism 2, a second grabbing mechanism 3, and a first driving mechanism. The traveling mechanism is used for enabling the battery replacing device to move along the length direction of the vehicle. The first seat body 1 is arranged on the travelling mechanism through a slewing mechanism. The rotating mechanism is used for driving the first seat body 1 to rotate. Alternatively, the first fastening structure 1 may be a plate structure, for example, including but not limited to a steel plate, an aluminum alloy plate, or a carbon fiber plate.

The first grabbing mechanism 2 and the second grabbing mechanism 3 are both provided with butt joint structures for butting with the battery modules 4. Specifically, above-mentioned butt joint structure can be for can with hanging groove assorted couple on the battery module, perhaps, butt joint structure also can be for pressing from both sides tight fixture block etc. of battery module, and butt joint structure's concrete structure can be specifically set for according to actual conditions, and it is no longer repeated here.

The first guide structure 5 and the second guide structure 6 are arranged on the first seat body side by side. The first gripping mechanism 2 and the second gripping mechanism 3 have the same gripping direction. It should be noted that the first gripping mechanism 2 and the second gripping mechanism 3 have the same gripping direction, that is, the moving direction is the same when the first gripping mechanism 2 and the second gripping mechanism 3 move from the initial position to the gripping position.

The first driving mechanism is used for driving the first grabbing mechanism and the second grabbing mechanism to respectively displace along a first track and a second track, and the first track is parallel to the second track.

The battery replacing device in the embodiment provided by the invention enables the first grabbing mechanism 2 and the second grabbing mechanism 3 to move between the battery compartment and the vehicle 9 and pick and place the battery module 4 through the traveling mechanism, the slewing mechanism, the first driving mechanism and the like. The traveling mechanism can align the first grasping mechanism 2 and the second grasping mechanism 3 with the battery mounting positions of the vehicle 9, respectively, to take out a low-powered battery module from the battery mounting positions and place a full-powered battery module to the battery mounting positions. The swing mechanism can adjust the grabbing directions of the first grabbing mechanism 2 and the second grabbing mechanism 3. After the vehicle parking position is inclined, the slewing mechanism can enable the battery replacing device to rotate to be parallel to the battery. The first drive mechanism is able to translate the first 2 and second 3 gripping mechanisms.

Through setting up first snatch mechanism 2 and second and snatch mechanism 3, in trading the electric process, first snatch mechanism 2 can get the battery module of full charge from battery getting and putting the position before vehicle 9 does not reach trades the electric station. After the vehicle 9 reaches the battery replacement station, the second grabbing mechanism 3 can directly take out the battery module in the vehicle 9, and then the first grabbing mechanism 2 puts the fully charged battery module into the vehicle 9 to complete the battery replacement process. Compared with the battery replacing device in the prior art, the battery replacing device can take out the fully charged battery module for standby before the vehicle 9 arrives, so that the waiting time of the vehicle 9 is reduced, the battery replacing time is shortened, and the battery replacing efficiency is improved. In addition, when the first grabbing mechanism and the second grabbing mechanism take and place batteries in the battery compartment, the batteries in the corresponding compartment can be taken and placed only by rotating angles without walking, and the battery changing time is shortened. The battery replacement efficiency is improved.

It should be noted that, in the above process, the first grasping mechanism 2 grasps a fully charged battery module, and the second grasping mechanism 3 grasps a power-deficient battery module, which are only described for convenience of understanding, and should not be understood as a limitation to the protection range, because in the actual power exchanging process, a process that the second grasping mechanism 3 grasps a fully charged battery module and the first grasping mechanism 2 grasps a power-deficient battery module may also occur.

In addition, first guiding mechanism and second guiding mechanism set up side by side, can make first pedestal 1 along first guiding mechanism or the ascending size in second guiding mechanism extending direction littleer to reduce and trade the area of occupying of electric installation, and reduce the space area of trading when electric installation is rotatory, and then reduce the area of trading the power station. Further, first snatch the mechanism and snatch the mechanism for setting up side by side with the second, when first base gyration, first snatch the mechanism and snatch the mechanism with the second and can be in the withdrawal state, has effectively shortened radius of gyration, and the battery compartment can be arranged more closely ground and trade electric installation around, and then has obviously reduced and traded the shared area in place of power station.

In some embodiments provided by the invention, the battery replacement device further comprises a lifting mechanism. The lifting mechanism is used for driving the first base body 1 to lift. The slewing mechanism can be a slewing bearing in the prior art, and the lifting mechanism can be a linear driving device such as an electric cylinder. The first seat body 1 is driven to ascend and descend by arranging the lifting mechanism, so that the battery replacing device can be compatible with vehicles 9 with different heights, and batteries of the vehicles 9 with different height specifications can be replaced.

Optionally, the traveling mechanism, the lifting mechanism, the swing mechanism and the first seat 1 are connected in sequence. Specifically, the first end of the lifting mechanism is connected with the traveling mechanism, and the second end of the lifting mechanism is connected with the bottom of the swing mechanism. The first seat 1 is installed on the top of the revolving mechanism. The revolving mechanism directly drives the first seat body to rotate. The lifting mechanism drives the swing mechanism to lift, and the swing mechanism drives the first seat body to lift.

Of course, the connection relationship between the four is not limited to the above-mentioned manner, and for example, the traveling mechanism, the rotating mechanism, the lifting mechanism, and the first seat 1 may be connected in sequence. Specifically, the bottom of the revolving mechanism is connected with the traveling mechanism, the first end of the lifting mechanism is connected with the top of the revolving mechanism, and the second end of the lifting mechanism is connected with the first seat body 1. The lifting mechanism directly drives the first seat body to lift. The swing mechanism drives the lifting mechanism to rotate, and then the lifting mechanism drives the first seat body to rotate. Both the two modes can realize the rotation action and the lifting action of the first seat body 1.

In some embodiments of the present invention, the traveling mechanism includes a second seat 7, a traveling wheel, and a second driving mechanism. The first seat body 1 is arranged on the second seat body 7 through a rotary mechanism. The traveling wheels are rotatably arranged at the bottom of the second seat 7. The second driving mechanism is used for driving the travelling wheels to rotate. So set up, running gear's structure is simpler to through setting up running gear, can make first snatch mechanism 2 and the second snatch mechanism 3 and aim at with the battery installation position of vehicle 9 respectively, so that get to vehicle 9 and put battery module 4. Alternatively, the second fastening structure 7 may be a plate structure, such as but not limited to, a steel plate, an aluminum alloy plate, and a carbon fiber plate.

In some embodiments provided by the present invention, the travel mechanism further comprises a third guide structure 8 cooperating with the travel wheels. The third guiding structure 8 may be provided as two parallel arranged guide rails. Through setting up and trade electric installation's advancing direction can be controlled more conveniently, accurately with walking wheel matched with third guide structure 8. Optionally, the circumferential surface of the road wheel is provided with an annular groove matched with the guide rail, so that the road wheel can better run along the guide rail.

As an alternative, the bottom of the second seat 7 is further provided with a supporting component for supporting the second seat 7. The support members include, but are not limited to, oil cylinders, air cylinders, and electric cylinders. The battery replacing device can be supported after the battery replacing device moves to the target position through the supporting component. Namely, the second seat body is separated from the third guide structure 8, and the support component is utilized to support the second seat body, so that the battery replacing device is prevented from shifting in the battery replacing process, and the battery replacing device is more stable in operation in the battery replacing process.

In some embodiments provided herein, the second drive mechanism comprises a motor. The output shaft of the motor is in transmission connection with the travelling wheels so as to drive the travelling wheels to rotate. For example, the output shaft of the motor drives the road wheels to rotate through a gear transmission or a coupling transmission. So set up, second actuating mechanism's simple structure can convenient and fast ground drive trade the electric installation and advance.

In some embodiments provided by the present invention, the first seat is provided with a first guiding structure 5 and a second guiding structure 6 arranged side by side. The extending directions of the first guide structure 5 and the second guide structure 6 are parallel, and the first grabbing mechanism 2 and the second grabbing mechanism 3 are matched with the first guide structure 5 and the second guide structure 6 in a one-to-one correspondence mode. The running directions of the first grabbing mechanism and the second grabbing mechanism can be conveniently and accurately controlled through the first guide structure and the second guide structure.

In some embodiments provided by the present invention, the first guide structure 5 and the second guide structure each comprise two mutually parallel guide rails. With this arrangement, the first guide structure 5 and the second guide structure 6 are simple in structure.

In some embodiments provided by the present invention, the first guide structure 5 and the second guide structure 6 are symmetrical with respect to the rotation center of the first seat 1. Through setting up first guide structure 5 and second guide structure 6 symmetry in the both sides of first pedestal centre of revolution, then first snatch mechanism 2 and second and snatch mechanism 3 and also distribute in the both sides of 1 centre of revolution of first pedestal, so first snatch the gravity that mechanism 2 and second snatch mechanism 3 and can offset each other, thereby avoid the problem of first pedestal 1 laterad to a certain extent at least, make first pedestal 1 rotate more steadily and smoothly, reduce the fault rate, the life of extension trades the electric installation.

In some embodiments provided by the present invention, the first gripping mechanism 2 and the second gripping mechanism 3 each comprise: at least one of a side-changing gripper device and a top-changing gripper device, and a vertical support seat.

Wherein, the vertical supporting seat is arranged on the first seat body 1. Further, the vertical supporting seat is matched with the first guide structure or the second guide structure. Alternatively, the vertical support base may be a cylindrical structure. Also, the cylindrical structure may be formed by welding or screw coupling of profiles or plates, etc. Further, in order to reduce the weight of the vertical supporting seat, the vertical supporting seat may be provided as a box structure formed of a plate material, or as a frame structure formed by connecting rod members.

The side-replacing gripper device is arranged on the side face of the vertical supporting seat, the top-replacing gripper device is arranged on the top of the vertical supporting seat, and the side-replacing gripper device and the top-replacing gripper device are both provided with butt joint structures.

As shown in fig. 1, optionally, a cantilever member 10 is provided on the vertical support base. For example, the interior of the cantilever member may be provided with a cavity structure to reduce the weight of the cantilever member. And a reinforcing plate arranged along the length direction of the cantilever part is arranged in the cavity structure so as to improve the bearing capacity of the cantilever part. In addition, lightening holes can be arranged on the cantilever part for lightening the weight of the cantilever part. The first end of the cantilever member 10 is connected to the top of the vertical support base, and the second end extends out of the vertical support base. The cantilever member 10 may be welded to the vertical support base or screwed thereto. The top-changing gripping device is arranged at the bottom of the cantilever part 10.

Alternatively, the top-changing gripper device may be connected to the boom member 10 via a mounting seat. That is, the mounting seat is connected to the bottom of the cantilever 10, and the top-changing gripper is connected to the mounting seat. For example, the mounting may be connected to the boom member 10 by a flexible member, such as a wire rope. Damping parts used for preventing the mounting seat from shaking are arranged on the periphery of the mounting seat. The damping member may be mounted on the cantilever member. The damping member includes, but is not limited to, a spring, a rubber block, or a damper. In the moving process of the battery module, especially in the starting and stopping process, the jacking and replacing gripper device is easy to generate larger impact force due to the large weight and large inertia of the battery module, so that weak links of connecting structures of the jacking and replacing gripper device and the like are damaged. And make the top trade tongs device can produce displacement extrusion damping piece through the flexible piece to the impact that produces the battery module cushions, avoids the weak link to receive the impact and damages. Through setting up the energy that the damping piece can absorb the impact and produce, reduce and avoid rocking of battery module even to trade the battery installation position that electric installation put into battery compartment or electric motor car with battery module. By the arrangement, the upper limit of the operation speed of the battery replacing device can be improved, the battery replacing efficiency is indirectly improved, the service life of the battery replacing device can be prolonged, and the use cost of an enterprise is reduced.

The side-changing gripper can be connected with the side of the battery module 4 to complete the side-changing operation to be compatible with the side-changing vehicle 9. Can be connected with the top of the battery module 4 by the top-changing gripper, thereby completing the top-changing operation to be compatible with the top-changing vehicle 9. Therefore, the battery replacing device can perform side replacing operation on the battery module 4 and top replacing operation on the battery module 4, can adapt to vehicles 9 with different battery replacing modes, and has a wider application range.

In some embodiments provided by the present invention, the first drive mechanism comprises a lead screw nut drive mechanism or a rack and pinion drive mechanism or a linear drive cylinder. So set up, first actuating mechanism's simple structure. The screw nut driving mechanism, the gear rack driving mechanism or the linear driving cylinder are arranged in a pair to respectively drive the first grabbing mechanism 2 and the second grabbing mechanism 3.

The screw and nut driving mechanism comprises a screw rotatably connected with the first base body, a nut arranged on the first grabbing mechanism 2 or the second grabbing mechanism 3 and a motor in transmission connection with the screw. The nut is matched with a lead screw which is parallel to the first guide structure 5 or the second guide structure 6. The gear and rack driving mechanism comprises a rack arranged on the first base body, a gear which is rotatably arranged on the first grabbing mechanism 2 or the second grabbing mechanism 3 and a motor which is in transmission connection with the gear, and the gear and the rack are in meshing transmission. The linear driving cylinder includes, but is not limited to, a cylinder, a pneumatic cylinder and an electric cylinder. The first end of the linear driving cylinder is connected with the first seat body, and the second end of the linear driving cylinder is connected with the first grabbing mechanism 2 or the second grabbing mechanism 3.

The embodiment of the invention also provides a battery replacing station which comprises a battery bin and the battery replacing device. Wherein, the battery compartment sets up to a plurality ofly. Each of which can accommodate a pair of battery modules 4. The battery bins are distributed annularly, and the battery replacing device is arranged in an annular space formed by the battery bins. The outside of the annular space is provided with a parking position where the vehicle 9 is stopped, and the annular space is provided with an opening corresponding to the parking position.

The battery replacing station is provided with the battery replacing device, so that the problems that the battery replacing time of the battery replacing device is long and the battery replacing efficiency is low in the prior art are solved. Through the arrangement of the battery bins which are distributed in the annular mode, the battery replacing device can sequentially take out fully charged battery modules from the battery bins, or sequentially place the battery modules which are taken out from the vehicle 9 and lack of power into the idle battery bins. The battery bins distributed annularly can improve the utilization rate of space, and compared with the battery bins arranged in a plane, the battery replacing device in the battery replacing station basically only needs to rotate in situ, has short translation distance, and can reduce the floor area of the battery replacing station. In addition, first snatch the mechanism and snatch the mechanism for setting up side by side with the second, when first base gyration, first snatch the mechanism and snatch the mechanism with the second and can be in the withdrawal state, has effectively shortened radius of gyration, and the battery compartment can be arranged more closely ground and trade electric installation around, and then has obviously reduced and has traded the shared area in place area of power station.

The working process of the power swapping station is described below with reference to fig. 2: first, as shown in fig. 2, fully charged battery modules are placed in the respective battery compartments. The battery compartment at the upper left corner in fig. 2 is defined as a first battery compartment, and clockwise sequentially comprises a second battery compartment and a third battery compartment, and so on. A fully charged battery module 4 is arranged in the first battery compartment, and a pair of fully charged battery modules 4 are arranged in the other battery compartments. Before the vehicle 9 does not reach, the first grabbing mechanism 2 grabs the battery module 4 on the right side in the first battery compartment. When the vehicle 9 arrives, the second grasping mechanism 3 is first brought into opposition to the battery mounting position of the vehicle 9 by the traveling mechanism, and the battery module 4 with a power loss in the vehicle 9 is taken out. And then enabling the first grabbing mechanism 2 to be opposite to the battery mounting position of the vehicle 9 through the travelling mechanism, and sending the fully charged battery module 4 grabbed by the first grabbing mechanism 2 to the battery mounting position of the vehicle 9 to finish the battery replacement process. The battery module 4 of insufficient power that the second snatchs mechanism 3 snatched sends into the left side in the first battery compartment, and first battery compartment right side is vacant this moment.

Then, the second grasping mechanism 3 grasps the fully charged battery module 4 from the left side in the second battery compartment before the next vehicle 9 arrives. After the vehicle 9 arrives, the battery module 4 with the power shortage of the vehicle 9 is grabbed through the first grabbing mechanism 2, and the battery module 4 with the power shortage grabbed by the second grabbing mechanism 3 is sent to the battery installation position of the vehicle 9, so that the battery replacement process is completed. The battery module 4 of insufficient power that first snatch mechanism 2 snatched sends into the right side in the first battery compartment, and second battery compartment left side is vacant this moment. Thus, the fully charged battery modules 4 in the battery compartments are sequentially captured, and the battery modules 4 with insufficient power are sequentially placed in the vacant battery compartments. It should be noted that the term "power shortage" includes, but is not limited to, low battery capacity of the battery module 4.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A battery swapping device is characterized by comprising:

a traveling mechanism;

the first seat body is arranged on the travelling mechanism through a swing mechanism, and the swing mechanism is used for driving the first seat body to rotate;

the first grabbing mechanism and the second grabbing mechanism are arranged on the first base body side by side, the first grabbing mechanism and the second grabbing mechanism are respectively provided with a butt joint structure for butt joint with a battery module, and the grabbing directions of the first grabbing mechanism and the second grabbing mechanism are the same;

2. The battery replacement device according to claim 1, further comprising a lifting mechanism for driving the first base to lift.

3. The battery swapping device of claim 1, wherein the traveling mechanism comprises:

the first seat body is arranged on the second seat body through the swing mechanism;

the travelling wheel is rotatably arranged at the bottom of the second seat body;

and the second driving mechanism is used for driving the travelling wheels to rotate.

4. The battery swapping device of claim 3, wherein the traveling mechanism further comprises a third guide structure engaged with the traveling wheel.

5. The battery swapping device of claim 3, wherein the second driving mechanism comprises a motor, and an output shaft of the motor is in transmission connection with the traveling wheel to drive the traveling wheel to rotate.

6. The battery replacement device according to claim 1, wherein the first seat is provided with a first guide structure and a second guide structure which are arranged side by side, the extending directions of the first guide structure and the second guide structure are parallel, and the first grabbing mechanisms and the second grabbing mechanisms are matched with the first guide structure and the second guide structure in a one-to-one correspondence manner.

7. The battery swapping device as in claim 6, wherein the first guide structure and the second guide structure are symmetrical with respect to a rotation center of the first base.

8. The battery swapping device of claim 1, wherein the first and second grasping mechanisms each comprise:

the vertical supporting seat is arranged on the first seat body;

9. The battery swapping device of claim 1, wherein the first driving mechanism comprises a lead screw nut driving mechanism or a rack and pinion driving mechanism or a linear driving cylinder.

10. A battery swapping station, characterized by comprising a battery compartment and a swapping device as claimed in any one of claims 1-9;

the battery compartment is provided with a plurality of battery compartments, each battery compartment can contain a pair of battery modules, the plurality of battery compartments are distributed annularly, the battery replacing device is arranged in an annular space formed by the battery compartments, a parking position for stopping a vehicle is arranged on the outer side of the annular space, and an opening corresponding to the parking position is formed in the annular space.