CN115817418A - Battery replacing system - Google Patents

Abstract

The invention provides a battery replacement system, and relates to the technical field of new energy of vehicles. The elevating system who trades electric installation is used for driving and trades electric platform and does the elevating movement for fixed platform, elevating system includes alternately lifting support, slider and follower, alternately lifting support, both ends respectively with trade electric platform and fixed platform connection, slider and fixed platform sliding connection, the slider has the first inclined plane of upwards extending towards the slope, the inclination on first inclined plane is greater than alternately lifting support and is in the contained angle between the extreme low position and the fixed platform, the follower is connected with alternately lifting support, and contact with the first inclined plane of slider, the follower sets up to move along first inclined plane when the slider slides, in order to drive alternately lifting support to do the elevating movement. According to the technical scheme, the cross lifting support slides on the sliding part through the driven part when being at the low position, so that the cross lifting support is driven to lift, and the jacking force of the cross lifting support when being at the low position can be improved.

Description

Battery replacing system

Technical Field

The invention relates to the technical field of vehicle new energy, in particular to a battery replacement system.

Background

In the prior art, in order to replace a vehicle battery pack, a battery replacement mechanism needs to be arranged. The battery pack is placed on the battery replacing mechanism, and the battery pack is driven to lift through the lifting movement of the battery replacing mechanism, so that an old battery pack is detached or a new battery pack is installed on a vehicle.

The battery replacement mechanism mainly achieves lifting motion through the crossed lifting support, the crossed lifting support is driven to do lifting motion through the driving unit, when the crossed lifting support is located at a low position, an included angle between the supporting arm of the crossed lifting support and a horizontal plane is small, and the situation that the jacking force is insufficient can be caused, so that the crossed lifting support is influenced to do lifting motion, and the lifting of the battery pack is influenced.

Disclosure of Invention

The invention aims to provide a battery replacement system, which solves the technical problem that the lifting force of a battery replacement mechanism is insufficient to influence the lifting of a battery pack in the prior art.

According to the purpose of the present invention, the present invention provides a battery replacement system, which includes a battery replacement device, wherein the battery replacement device includes at least one set of lifting mechanism, a fixed platform, and a battery replacement platform disposed above the fixed platform and used for supporting a vehicle battery pack, the lifting mechanism is used for driving the battery replacement platform to perform lifting motion relative to the fixed platform, and the lifting mechanism includes:

the two ends of the cross lifting support are respectively connected with the battery replacing platform and the fixing platform;

the sliding part is connected with the fixed platform in a sliding mode and provided with a first inclined surface extending in the upward direction in an inclined mode, and the inclined angle of the first inclined surface is larger than the included angle between the cross lifting support and the fixed platform when the cross lifting support is located at the lowest position;

the driven piece is connected with the crossed lifting support and is in contact with the first inclined plane of the sliding piece, and the driven piece is arranged to move along the first inclined plane when the sliding piece slides so as to drive the crossed lifting support to do lifting movement.

Optionally, the driven member is configured to have a roller, so that the roller rolls along the first inclined surface to drive the cross lifting bracket to perform lifting movement; or

The driven part is configured to be provided with a second inclined surface matched with the first inclined surface, so that the second inclined surface slides along the first inclined surface, and the crossed lifting support is driven to do lifting movement.

Optionally, the cross lifting bracket comprises a first cross arm and a second cross arm arranged in a cross, the follower being connected at a position where the first cross arm and the second cross arm intersect.

Optionally, the first cross arm has a first slide seat located at the top and a second support seat located at the bottom, the second cross arm has a first support seat located at the top and a second slide seat located at the bottom, the first support seat with trade electric platform fixed connection, the second support seat with fixed platform fixed connection, the first slide seat with trade electric platform sliding connection, the second slide seat with fixed platform sliding connection.

Optionally, the battery swapping device further includes:

the first sliding rail is arranged on the fixed platform;

the connecting plate is arranged to be in sliding connection with the first sliding rail and connected with the second sliding seat;

the sliding part is configured to slide along the first sliding rail and abut against the connecting plate when driving the driven part to move to the top of the first inclined plane, so as to drive the connecting plate to slide along the first sliding rail, and further drive the cross lifting support to perform lifting movement.

Optionally, the battery swapping device further includes:

and two ends of the auxiliary lifting assembly are respectively connected with the fixed platform and the battery replacing platform, and the auxiliary lifting assembly is constructed to move along with the cross lifting support when the cross lifting support does lifting motion so as to assist in supporting the battery replacing platform.

Optionally, the battery swapping device further includes:

and the driving mechanism is arranged on the fixed platform, is connected with the sliding piece and is used for driving the sliding piece to slide relative to the fixed platform.

Optionally, the battery swapping platform includes:

the lifting platform is connected with the crossed lifting support, and a plurality of positioning holes and a plurality of through holes are formed in the lifting platform;

the floating platform is arranged below the lifting platform and is connected with the lifting platform through a chain, and a plurality of positioning pins and a plurality of supporting blocks are arranged on the floating platform, so that the positioning pins and the supporting blocks respectively penetrate through the positioning holes and the through holes, and the vehicle battery pack is positioned and supported.

Optionally, two through grooves are formed in the lifting platform, and the battery replacement system further includes:

and the conveying mechanism is provided with two plate chain conveying belts which are respectively arranged at the two through grooves, and the conveying mechanism is constructed to do lifting motion relative to the lifting platform so as to drive the vehicle battery pack to ascend and be separated from the supporting block or drive the vehicle battery pack to descend and be abutted against the supporting block.

Optionally, the method further comprises:

a rail transport mechanism disposed at a bottom of the fixed platform, the fixed platform configured to move along the rail transport mechanism to transport the vehicle battery pack.

The battery replacing device comprises at least one group of lifting mechanism, a fixed platform and a battery replacing platform which is arranged above the fixed platform and used for supporting a vehicle battery pack, wherein the lifting mechanism is used for driving the battery replacing platform to do lifting motion relative to the fixed platform, the lifting mechanism comprises a cross lifting support, a sliding part and a driven part, and two ends of the cross lifting support are respectively connected with the battery replacing platform and the fixed platform. The sliding part is connected with the fixed platform in a sliding mode, the sliding part is provided with a first inclined plane extending towards the upper direction of the inclined plane, and the inclined angle of the first inclined plane is larger than the included angle between the cross lifting support and the fixed platform when the cross lifting support is located at the lowest position. The driven piece is connected with the crossed lifting support and is in contact with the first inclined surface of the sliding piece, and the driven piece is arranged to move along the first inclined surface when the sliding piece slides so as to drive the crossed lifting support to do lifting movement. According to the technical scheme, the cross lifting support slides on the sliding part through the driven part when being at the low position, so that the cross lifting support is driven to lift, the jacking force of the cross lifting support when being at the low position can be improved, and the condition that the jacking force is insufficient is avoided.

Further, the battery replacing platform comprises a lifting platform and a floating platform, wherein the lifting platform is connected with the crossed lifting support, and a plurality of positioning holes and a plurality of through holes are formed in the lifting platform. The floating platform is arranged below the lifting platform and is connected with the lifting platform through a chain, and a plurality of positioning pins and a plurality of supporting blocks are arranged on the floating platform, so that the positioning pins and the supporting blocks respectively penetrate through a plurality of positioning holes and a plurality of through holes, and the vehicle battery pack is positioned and supported. Above-mentioned technical scheme can be for trading the floating platform that the electric platform floated in the horizontal direction through setting up, more do benefit to the location of battery package for the battery package is placed more smoothly on trading the electric platform.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic block diagram of a swapping system according to one embodiment of the invention;

FIG. 2 is a schematic connection diagram of a cross lift bracket and follower in the swapping system of FIG. 1;

FIG. 3 is a schematic block diagram of the cross over lift bracket of FIG. 2;

FIG. 4 is a schematic connection diagram of a slider and a driving mechanism in the battery swapping system shown in FIG. 2;

FIG. 5 is a schematic position diagram of the slider spaced from the connecting plate in the swapping system of FIG. 2;

FIG. 6 is a schematic enlarged view at A in FIG. 5;

FIG. 7 is a schematic position diagram of the sliding member abutting against the connecting plate in the battery swapping system shown in FIG. 2;

FIG. 8 is a schematic enlarged view at B in FIG. 7;

FIG. 9 is a schematic block diagram of a rail transport mechanism in the swapping system of FIG. 1;

FIG. 10 is a schematic structural diagram of a swapping platform in the swapping system shown in FIG. 1;

FIG. 11 is a schematic enlarged view at C in FIG. 10;

FIG. 12 is a schematic block diagram of a transport mechanism in the swapping system of FIG. 1;

fig. 13 is a schematic enlarged view at D in fig. 12.

Reference numerals:

100-electric changing system, 10-fixed platform, 20-rail transport mechanism, 30-conveying mechanism, 40-driving mechanism, 11-electric changing platform, 12-first slide rail, 13-cross lifting support, 14-sliding part, 15-driven part, 16-auxiliary lifting component, 111-lifting platform, 112-floating platform, 113-chain, 114-through groove, 115-supporting block, 116-positioning pin, 21-rail, 22-gear, 23-rack, 24-traveling wheel, 25-mounting plate, 26-first driving motor, 27-guide wheel, 31-plate chain conveying belt, 32-guide shaft, 33-guide bearing, 34-guide plate, 35-electric cylinder, 36-lifting connecting plate, 37-second driving motor, 38-speed reducer, 39-transmission shaft, 131-first cross arm, 132-second cross arm, 133-second support, 134-first slide seat, 135-second slide seat, 136-first support seat, 137-connecting plate, 141-first inclined surface, 142-tail plate, 142-ball-tail plate, 143-ball screw seat and ball screw seat.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature, i.e., one or more such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. When a feature "comprises or comprises" a or some of its intended features, this indicates that other features are not excluded and that other features may be further included, unless expressly stated otherwise.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "coupled," and the like are intended to be inclusive and mean, for example, that a connection may be fixed or removable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.

Further, in the description of the present embodiments, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact by another feature therebetween. That is, in the description of the present embodiment, the first feature being "on," "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature "under," "beneath," or "beneath" a second feature may be directly under or obliquely under the first feature, or simply mean that the first feature is at a lesser elevation than the second feature.

Unless otherwise defined, all terms (including technical and scientific terms) used in the description of the present embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Fig. 1 is a schematic structural diagram of a swapping system 100 according to an embodiment of the present invention, fig. 2 is a schematic connection diagram of a cross lifting bracket 13 and a driven member 15 in the swapping system 100 shown in fig. 1, fig. 3 is a schematic structural diagram of the cross lifting bracket 13 shown in fig. 2, and fig. 4 is a schematic connection diagram of a slider 14 and a driving mechanism 40 in the swapping system 100 shown in fig. 2. As shown in fig. 1, 2, 3, and 4, in a specific embodiment, the battery swapping system 100 includes a battery swapping device, the battery swapping device includes at least one set of lifting mechanism, a fixed platform 10, and a battery swapping platform 11 disposed above the fixed platform 10 and used for supporting a vehicle battery pack, the lifting mechanism is used for driving the battery swapping platform 11 to perform a lifting motion relative to the fixed platform 10, the lifting mechanism includes a cross lifting bracket 13, a sliding part 14, and a driven part 15, two ends of the cross lifting bracket 13 are respectively connected with the battery swapping platform 11 and the fixed platform 10, the sliding part 14 is slidably connected with the fixed platform 10, the sliding part 14 has a first inclined plane 141 extending in an obliquely upward direction, and an inclination angle of the first inclined plane 141 is greater than an included angle between the cross lifting bracket 13 and the fixed platform 10 when the cross lifting bracket 13 is at a lowest position. Follower 15 is connected to cross lift bracket 13 and contacts first inclined plane 141 of slider 14, and follower 15 is set up to move along first inclined plane 141 when slider 14 slides to drive cross lift bracket 13 to do the elevating movement. Here, the number of the elevating mechanisms is two. In other embodiments, the number of the lifting mechanisms may also be set according to specific design requirements, for example, the number may be specifically set according to the size and weight of the battery replacement platform 11.

According to the embodiment, when the cross lifting support 13 is at the low position, the driven part 15 slides on the sliding part 14, so that the cross lifting support 13 is driven to lift, the jacking force of the cross lifting support 13 at the low position can be improved, and the situation that the jacking force is insufficient is avoided.

In this embodiment, the follower 15 is configured with a roller so that the roller rolls along the first slope 141 to move the cross lifting bracket 13 up and down.

In another embodiment, follower 15 is configured to have a second ramp surface that cooperates with first ramp surface 141 such that the second ramp surface slides along first ramp surface 141 to move cross-over lifting bracket 13 in a lifting motion.

As shown in fig. 3, in this embodiment, the cross elevating bracket 13 includes a first cross arm 131 and a second cross arm 132 arranged in a cross, and the follower 15 is connected at a position where the first cross arm 131 and the second cross arm 132 intersect. It is understood that the roller is located at the crossing position of the crossing elevating bracket 13 and is connected to the crossing elevating bracket 13 through a rotation shaft.

Specifically, the first cross arm 131 has a first sliding seat 134 at the top and a second supporting seat 133 at the bottom, the second cross arm 132 has a first supporting seat 136 at the top and a second sliding seat 135 at the bottom, the first sliding seat 134 is slidably connected with the power exchanging platform 11, the second supporting seat 133 is fixedly connected with the fixed platform 10, the first supporting seat 136 is fixedly connected with the power exchanging platform 11, and the second sliding seat 135 is slidably connected with the fixed platform 10. Specifically, a second slide rail is arranged below the battery replacing platform 11, and the first slide 134 of the first cross arm 131 of the cross lifting support 13 is slidably connected with the second slide rail and configured to slide along the second slide rail when the cross lifting support 13 performs lifting movement.

Fig. 5 is a schematic position view of the slide 14 and the connecting plate 137 in the battery replacement system 100 shown in fig. 2, in which the arrow direction indicates the forward sliding direction, fig. 6 is a schematic enlarged view at a in fig. 5, fig. 7 is a schematic position view of the slide 14 abutting against the connecting plate 137 in the battery replacement system 100 shown in fig. 2, and fig. 8 is a schematic enlarged view at B in fig. 7. As shown in fig. 5, 6, 7 and 8, in this embodiment, the battery replacing device further includes a first slide rail 12, a connecting plate 137 and a sliding member 14, wherein the first slide rail 12 is mounted on the fixed platform 10, and the connecting plate 137 is configured to be slidably connected to the first slide rail 12 and connected to the second slide 135. The sliding member 14 is configured to slide along the first slide rail 12, and abut against the connecting plate 137 when the driving follower 15 moves to the top of the first inclined plane 141, so as to drive the connecting plate 137 to slide along the first slide rail 12, and thus drive the cross lifting bracket 13 to perform lifting movement.

It can be understood that the connection plate 137 is connected to the second slide 135 of the second cross arm 132 of the cross lifting bracket 13 and can slide along the first slide rail 12, so as to slide the second slide 135, thereby adjusting the height of the cross lifting bracket 13. Here, the connecting plate 137 shares the first slide rail 12 with the slider 14.

Referring to fig. 4, 7 and 8, a notch 143 is formed below the slider 14, the connecting plate 137 is located at the notch 143, the first inclined surface 141 is located in front of the slider 14, and the slider 14 further has a tail plate 142. As can be seen in fig. 8, below the connecting plate 137 is the first slide rail 12.

Referring to fig. 5 and 6, when the sliding element 14 slides forward along the first sliding rail 12, the driven element 15 can move upward along the first inclined surface 141, and in this movement process, a gap is always kept between the tail plate 142 of the sliding element 14 and the connecting plate 137, that is, the sliding element 14 cannot directly drive the connecting plate 137 to slide forward along the first sliding rail 12, it can be understood that the sliding element 14 cannot directly drive the second sliding seat 135 in the cross lifting bracket 13 to slide forward, and only the driven element 15 moves upward along the first inclined surface 141 to drive the cross lifting bracket 13 to move upward, so that the second sliding seat 135 drives the connecting plate 137 to slide forward along the first sliding rail 12. When the driven member 15 moves to the top of the first inclined surface 141 along the first inclined surface 141, at this time, the sliding member 14 slides to a position where the tail plate 142 abuts against the connecting plate 137, the connecting plate 137 is directly driven by the sliding member 14 to continuously slide forward along the first slide rail 12, during the continuous forward sliding process, the driven member 15 continues to rise, so as to be separated from the sliding member 14, and the second slide carriage 135 is directly driven by the sliding member 14 to slide forward, so that the cross lifting bracket 13 continues to move upward.

When the sliding part 14 slides backwards along the first sliding rail 12, the sliding part 14 slides to a position where the side wall of the notch 143 abuts against the connecting plate 137 and directly drives the connecting plate 137 to slide backwards along the first sliding rail 12 until the cross lifting bracket 13 descends to the lowest position.

Referring to fig. 2, the battery replacement device further includes at least one auxiliary lifting assembly 16, two ends of the auxiliary lifting assembly 16 are respectively connected to the fixed platform 10 and the battery replacement platform 11, and the auxiliary lifting assembly 16 is configured to move along when the cross lifting support 13 performs lifting movement, so as to assist in supporting the battery replacement platform 11. Specifically, the auxiliary lifting assembly 16 is V-shaped, when the cross lifting bracket 13 moves upward, the included angle of the auxiliary lifting assembly 16 gradually increases to better support the battery replacing platform 11, and when the cross lifting bracket 13 moves downward, the included angle of the auxiliary lifting assembly 16 gradually decreases. In this embodiment, the number of the auxiliary lifting assemblies 16 is four, two auxiliary lifting assemblies 16 are respectively disposed on two opposite sides of the battery replacing platform 11, and the auxiliary lifting assemblies 16 and the cross lifting support 13 are arranged in the vertical direction, so that the installation space can be saved, and the occupied space of the battery replacing system 100 can be reduced.

In this embodiment, the battery replacing device further includes a driving mechanism 40, which is mounted on the fixed platform 10 and connected to the sliding member 14, for driving the sliding member 14 to slide relative to the fixed platform 10. In this embodiment, the drive mechanism 40 employs a ball screw 42 arrangement. The ball screw 42 device includes a motor, a ball screw 42, and a ball screw mount 41.

Specifically, referring to fig. 2 and 4, the number of the elevating mechanisms is two, the two elevating mechanisms are respectively disposed at both sides of the driving mechanism 40, and the tail plates 142 of the two sliders 14 are both connected with the ball screw 42 to simultaneously follow the movement when the ball screw 42 rotates.

Fig. 9 is a schematic block diagram of the rail transport mechanism 20 in the swapping system 100 shown in fig. 1. As shown in fig. 9, and referring to fig. 1 and 2, in this embodiment, the battery swapping system 100 further includes a rail transportation mechanism 20 disposed at the bottom of the fixed platform 10, and the fixed platform 10 is configured to move along the rail transportation mechanism 20 to transport the vehicle battery pack. Specifically, the rail transport mechanism 20 includes a rail 21, a gear 22, a rack 23, road wheels 24, a plurality of guide wheels 27, a mounting plate 25, and a first drive motor 26. Track 21 sets up on mounting panel 25, and walking wheel 24 installs in the bottom of fixed platform 10, and first driving motor 26 fixed mounting is in the bottom of fixed platform 10, and gear 22 installs at the output of first driving motor 26, and rack 23 sets up at mounting panel 25. A plurality of guide wheels 27 are arranged at the bottom of the fixed platform 10, guide strips are arranged on the mounting plate 25, and both side surfaces of the guide strips are in contact with the guide wheels 27 to guide the rail transport mechanism 20. Road wheels 24 are in contact with track 21 and gear 22 is in contact with rack 23. The fixed platform 10 is reciprocally movable on the rails 21 by the first driving motor 26.

Fig. 10 is a schematic structural diagram of the swapping platform 11 in the swapping system 100 shown in fig. 1, and fig. 11 is a schematic enlarged view at C in fig. 10. As shown in fig. 10 and 11, the battery replacing platform 11 includes a lifting platform 111 and a floating platform 112. The lifting platform 111 is connected with the cross lifting support 13, and a plurality of positioning holes and a plurality of through holes are formed in the lifting platform 111. The floating platform 112 is disposed below the lifting platform 111 and connected to the lifting platform 111 through a chain 113, and a plurality of positioning pins 116 and a plurality of supporting blocks 115 are disposed on the floating platform 112, so that the positioning pins 116 and the supporting blocks 115 respectively pass through the positioning holes and the through holes, thereby positioning and supporting the vehicle battery pack. It can be understood that the floating platform 112 is suspended below the lifting platform 111 by a chain 113, and the floating platform 112 can float in a horizontal direction relative to the lifting platform 111. The lifting platform 111 is connected with the fixed platform 10 through the cross lifting support 13, and the lifting platform 111 can vertically lift relative to the fixed platform 10 under the action of the cross lifting support 13.

Specifically, the floating platform 112 is provided with a positioning pin 116 and a supporting block 115, because the floating platform 112 can float in the horizontal direction, when the battery replacing platform 11 is lifted, the positioning pin 116 can be in guide fit with a positioning sleeve on the vehicle battery pack, and can be accurately positioned with the vehicle battery pack. The supporting block 115 is higher than the lifting platform 111, when the vehicle is changed, the bottom surface of the battery pack is in contact with the upper surface of the supporting block 115, and the supporting block 115 is made of nylon, so that the abrasion of the contact surface of the battery pack can be reduced. In addition, a battery blocking mechanism and an unlocking and locking mechanism are arranged on the floating platform 112, and the unlocking and locking mechanism is matched with a lockset on the battery pack and can unlock the battery pack from the vehicle or lock and fix the battery pack on the vehicle.

In this embodiment, the floating platform 112 capable of floating in the horizontal direction relative to the battery replacing platform 11 is provided, which is more beneficial to positioning the battery pack, so that the battery pack is more smoothly placed on the battery replacing platform 11.

Fig. 12 is a schematic configuration diagram of the conveying mechanism 30 in the battery replacement system 100 shown in fig. 1, and fig. 13 is a schematic enlarged view of a position D in fig. 12. As shown in fig. 12 and 13 and referring to fig. 1, in this embodiment, two through slots 114 are provided on the lifting platform 111, the battery replacement system 100 further includes a conveying mechanism 30, the conveying mechanism 30 has two plate link conveyors 31, the two plate link conveyors 31 are respectively provided at the two through slots 114, and the conveying mechanism 30 is configured to perform a lifting motion relative to the lifting platform 111 to lift the vehicle battery pack to disengage from the supporting block 115 or to lower the vehicle battery pack to abut against the supporting block 115.

Specifically, the conveying mechanism 30 includes a plate chain conveyor belt 31, a guide shaft 32, a guide bearing 33, a guide plate 34, an electric cylinder 35, a lifting connecting plate 36, a second drive motor 37, a speed reducer 38, and a transmission shaft 39. Two plate link chain conveyer belts 31 are connected with a speed reducer 38 through a transmission shaft 39. The second driving motor 37 can drive the two plate chain conveyer belts 31 to synchronously rotate, so that the function of conveying the battery pack is achieved, and the battery pack is prevented from deviating in the conveying process. The plate chain conveyer belt 31 is connected with a guide plate 34, a guide bearing 33 is installed on the guide plate 34, and a guide shaft 32 is fixed at the bottom of the lifting platform 111 and is connected with the guide bearing 33 in a sliding manner. The electric cylinder 35 is fixedly installed at the bottom of the lifting platform 111, an expansion rod of the electric cylinder 35 is connected with the lifting connecting plate 36, and the lifting connecting plate 36 is connected with the plate chain conveying belt 31. The plate link conveyor 31 is vertically liftable relative to the lifting platform 111 by the electric cylinder 35. When the plate link conveyor 31 is in the descending position, the upper surface of the plate link conveyor 31 is lower than the supporting block 115 and does not contact the battery pack. When the plate link chain conveying belt 31 ascends, the upper surface of the plate link chain conveying belt 31 is higher than the supporting block 115, so that the battery pack can be jacked up from the supporting block 115 of the battery replacing platform 11, and the battery pack is separated from the positioning pin 116 and the locking and unlocking mechanism.

In this embodiment, when the cross lifting bracket 13 is at the lower position, the motor drives the ball screw 42, the sliding member 14 can be driven by the ball screw 42 to move linearly along the horizontal direction, and the driven member 15 ascends along the first inclined surface 141 of the sliding member 14 to drive the cross lifting bracket 13 to ascend. When the follower 15 finishes the stroke of the first slope 141, the tail plate 142 of the slider 14 starts to contact with the second slide seat 135 of the cross lifting bracket 13, and the cross lifting bracket 13 is driven to ascend continuously, and the follower 15 gradually disengages from the first slope 141. The auxiliary lifting assembly 16 is arranged on one side of the cross lifting support 13 and connected with the lifting platform 111 of the battery replacing platform 11, and plays a role in increasing the rigidity of the whole structure of the cross lifting support 13 when the cross lifting support 13 is lifted, and reduces the shaking of the lifting platform 111 in the lifting process.

When the cross lifting support 13 is at a lower position, the included angle between the first cross arm 131 and the second cross arm 132 of the cross lifting support 13 and the horizontal plane is smaller, that is, the included angle between the first cross arm 131 and the second cross arm 132 of the cross lifting support 13 and the fixed platform 10 is smaller, and if the second sliding base 135 is directly driven to slide, the jacking force of the cross lifting support 13 in the vertical direction is small. In this embodiment, by providing the slider 14 and the follower 15, the inclination angle of the first slope 141 of the slider 14 is large, and the lifting force of the cross lifting bracket 13 in the vertical direction can be increased. When the cross lifting bracket 13 is lifted, the included angle between the first cross arm 131 and the second cross arm 132 and the horizontal plane is increased, and the second slider 135 is driven to provide sufficient jacking force. With the arrangement, on one hand, the jacking force of the cross lifting support 13 in the low position can be improved, the problem that the jacking force is insufficient due to the fact that the angles of the first cross arm 131 and the second cross arm 132 and the horizontal plane are too small is avoided, and on the other hand, the height of the cross lifting support 13 can be lowered, so that the necessary lifting height of the vehicle lifting mechanism is reduced.

When a vehicle enters the battery replacing station for replacing the battery, the battery replacing device is located in the charging cabin, the vehicle runs to the battery replacing position of the battery replacing cabin, the vehicle lifting mechanism lifts the vehicle, and the battery replacing device is driven by the rail transportation mechanism 20 to move from the charging cabin to the battery replacing cabin, so that the battery replacing device is located below a battery of the vehicle. The crossed lifting support 13 starts to lift, the lifting platform 111 drives the floating platform 112 to lift together, the positioning pin 116 on the floating platform 112 is accurately positioned with the battery, the locking and unlocking mechanism is contacted with the battery lock of the vehicle battery pack to form matching, and the supporting block 115 is contacted with the bottom surface of the vehicle battery pack. The unlocking mechanism acts to unlock the battery lock, the cross lifting support 13 begins to descend, and the battery breaks away from the vehicle under the condition of power shortage. The rail transport mechanism 20 drives the battery replacing device to move from the battery replacing cabin to the charging cabin, the cross lifting support 13 ascends to lift the vehicle battery pack to the vacant layer of the battery rack, and the plate chain conveyor belt 31 ascends under the action of the electric cylinder 35 to jack the vehicle battery pack up to be separated from the positioning pin 116 and the locking and unlocking mechanism. The plate link conveyor 31 operates to convey the vehicle battery pack to the battery rack empty floor. The battery replacing device is lifted to the layer where the full-charge batteries of the battery rack are located, the full-charge batteries are conveyed to the plate link conveyer belt 31, the plate link conveyer belt 31 descends, and the full-charge batteries are matched with the positioning pins 116 for positioning and fall on the supporting blocks 115. The battery replacing device continuously descends to the right position, and the rail transport mechanism 20 drives the battery replacing device to move from the charging cabin to the battery replacing cabin. The battery replacement device moves in place, the fully charged battery rises under the action of the cross lifting support 13 and is in butt joint with the vehicle in place, and the locking and unlocking mechanism acts to lock and fix the fully charged battery on the vehicle. The battery replacement device descends and returns to the charging cabin under the driving of the rail transport mechanism 20. The vehicle lifting mechanism puts down the vehicle, and the vehicle drives away from the battery replacement station to complete battery replacement.

In the embodiment, the battery replacing device is arranged on the rail transportation mechanism 20, and the conveying mechanism 30 is arranged on the battery replacing device, so that the battery replacing device can walk between the charging cabin and the battery replacing cabin, and thus the battery on the vehicle can be taken and placed by the battery replacing device when the battery replacing cabin is replaced, the battery can be taken and placed by the battery replacing device from the battery rack when the battery replacing cabin is charged, and thus, a stacker is not required to be arranged, and meanwhile, the conveying device of the battery replacing system 100 is simplified.

The embodiment designs the battery replacing device capable of moving on the track 21, simultaneously realizes the battery taking and placing functions of the battery replacing cabin and the charging cabin, and has high integration level and low cost of the battery replacing station. The battery replacement device designed by the embodiment has the advantages that the overall height of the battery replacement device is low, the vehicle lifting height of the vehicle lifting mechanism is favorably reduced, the lifting force of the battery replacement device is large when the battery replacement device is at a low position, and the battery replacement device is favorably lifted.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. The utility model provides a trade electric system, its characterized in that, is including trading the electric device, it includes that at least a set of elevating system, fixed platform and setting are in to trade the electric device fixed platform top just is used for supporting the trade electric platform of vehicle battery package, elevating system is used for driving trade the electric platform for fixed platform is elevating movement, elevating system includes:

the two ends of the cross lifting support are respectively connected with the battery replacing platform and the fixing platform;

the sliding part is connected with the fixed platform in a sliding manner, the sliding part is provided with a first inclined plane extending in the inclined upward direction, and the inclined angle of the first inclined plane is larger than the included angle between the cross lifting bracket and the fixed platform when the cross lifting bracket is at the lowest position;

the driven piece is connected with the crossed lifting support and is in contact with the first inclined plane of the sliding piece, and the driven piece is arranged to move along the first inclined plane when the sliding piece slides so as to drive the crossed lifting support to do lifting movement.

2. The battery swapping system of claim 1,

the driven piece is configured to be provided with a roller, so that the roller rolls along the first inclined surface to drive the crossed lifting support to do lifting motion; or

The driven part is configured to be provided with a second inclined surface matched with the first inclined surface, so that the second inclined surface slides along the first inclined surface, and the crossed lifting support is driven to do lifting movement.

3. The swapping system of claim 1, wherein the crossed lift bracket comprises a first crossed arm and a second crossed arm arranged in a cross, the follower being connected at a location where the first crossed arm and the second crossed arm intersect.

4. The swapping system of claim 3, wherein the first cross arm has a first carriage at the top and a second carriage at the bottom, the second cross arm has a first carriage at the top and a second carriage at the bottom, the first carriage is fixedly connected to the swapping platform, the second carriage is fixedly connected to the fixed platform, the first carriage is slidably connected to the swapping platform, and the second carriage is slidably connected to the fixed platform.

5. The battery swapping system of claim 4, wherein the battery swapping device further comprises:

the first sliding rail is arranged on the fixed platform;

the connecting plate is arranged to be in sliding connection with the first sliding rail and connected with the second sliding seat;

the sliding part is configured to slide along the first sliding rail and abut against the connecting plate when driving the driven part to move to the top of the first inclined plane, so as to drive the connecting plate to slide along the first sliding rail, and further drive the cross lifting support to perform lifting movement.

6. The battery swapping system of any one of claims 1-5, wherein the battery swapping device further comprises:

and two ends of the auxiliary lifting assembly are respectively connected with the fixed platform and the battery replacing platform, and the auxiliary lifting assembly is constructed to move along with the cross lifting support when the cross lifting support does lifting motion so as to assist in supporting the battery replacing platform.

7. The battery swapping system of any one of claims 1-5, wherein the battery swapping device further comprises:

and the driving mechanism is arranged on the fixed platform, is connected with the sliding piece and is used for driving the sliding piece to slide relative to the fixed platform.

8. The battery swapping system of any one of claims 1-5, wherein the battery swapping platform comprises:

the lifting platform is connected with the crossed lifting support, and a plurality of positioning holes and a plurality of through holes are formed in the lifting platform;

the floating platform is arranged below the lifting platform and is connected with the lifting platform through a chain, and a plurality of positioning pins and a plurality of supporting blocks are arranged on the floating platform, so that the positioning pins and the supporting blocks respectively penetrate through the positioning holes and the through holes, and the vehicle battery pack is positioned and supported.

9. The battery replacement system of claim 8, wherein two through slots are formed in the lifting platform, and the battery replacement system further comprises:

the conveying mechanism is provided with two plate chain conveying belts which are respectively arranged at the two through grooves, and the conveying mechanism is constructed to do lifting motion relative to the lifting platform so as to drive the vehicle battery pack to ascend and be separated from the supporting block or drive the vehicle battery pack to descend and be abutted to the supporting block.

10. The battery swapping system of any one of claims 1-5, further comprising:

a rail transport mechanism disposed at a bottom of the fixed platform, the fixed platform configured to move along the rail transport mechanism to transport the vehicle battery pack.

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