CN118124530A

CN118124530A - Battery changing device

Info

Publication number: CN118124530A
Application number: CN202310801702.9A
Authority: CN
Inventors: 张建平; 李长宏; 宋志强
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-12-01
Filing date: 2023-06-30
Publication date: 2024-06-04
Also published as: CN219487565U; CN219600989U; CN116653573A; CN220180550U; CN117239326A; CN219312729U; CN219312872U; CN117227565A; CN118124527A; CN118124528A; WO2024114741A1; WO2024114754A1; CN116653687A; CN220076109U; CN219312565U; CN118124447A; CN219096478U; CN117227566A; CN118124446A; CN219096683U

Abstract

The application relates to the technical field of vehicle power conversion, and discloses power conversion equipment which comprises a power conversion base, a power conversion platform and a lifting device, wherein the lifting device acts on the power conversion platform to enable the power conversion platform to lift relative to the power conversion base, the lifting device comprises a lifting driving unit and a transmission unit which are in transmission connection, the transmission unit comprises a connecting rod type telescopic mechanism, the connecting rod type telescopic mechanism comprises a first rod component and a second rod component which are in cross connection, and the same side of the first rod component and the same side of the second rod component face the power conversion platform. On the basis of guaranteeing lifting travel, the structure is simplified, and the height of the power exchange equipment is reduced so as to adapt to power exchange vehicles with different chassis heights.

Description

Battery changing device

The present application claims priority from chinese patent application CN2022115318647, with application date 2022, 12/1. The present application incorporates the entirety of the above-mentioned chinese patent application.

Technical Field

The application belongs to the technical field of vehicle power conversion, and particularly relates to power conversion equipment.

Background

With the development and popularization of new energy vehicles, the battery pack quick-change technology also develops rapidly. Currently, a battery pack of a new energy vehicle is mostly fixed on a girder or a quick-change bracket at the bottom of the vehicle, so that when the battery pack is replaced, a special battery replacement device is required to be controlled to be moved to a battery replacement position at the bottom of the vehicle, and then the battery replacement device is controlled to execute lifting operation and battery pack locking and unlocking operation so as to complete the whole battery replacement process.

The current battery replacing equipment generally comprises a battery replacing base, a lifting device and a battery replacing platform for supporting a battery pack, wherein the lifting device drives the battery replacing platform to lift, and then the battery pack is lifted. The lifting device commonly used in the prior art is usually a scissor lifting structure or a rigid chain lifting structure, the lifting device is directly arranged at the bottom of the power exchange platform to perform lifting operation, the structure is complex, the span between the power component and the executing component is large, the transverse occupied space is increased, the vertical space of the executing component is large, the lifting stroke can be limited by the structure of the executing component, so that the lifting stroke is limited, the application scene is limited, the arrangement of each component is inflexible, the interference is easy to occur, the vertical lifting degree is poor, and the control accuracy is poor.

In addition, the applicant has found through intensive researches that, in the process of power exchange of a passenger car or a heavy truck, the bottom space of the power exchange vehicle is limited, and particularly when the heavy truck large-sized vehicle is used for power exchange, the battery pack used by the heavy truck occupies a larger space, so that the size requirement on the power exchange equipment is higher, the structure of the conventional power exchange equipment is complex, the occupied height space is large, the maximum lifting stroke of the power exchange equipment is limited, the wide application is not facilitated, and the power exchange equipment is required to be further optimized.

Disclosure of Invention

In order to solve the problems of large occupied space and limited lifting stroke of the power exchange equipment caused by complex lifting device structure of the power exchange equipment in the prior art, the application provides the power exchange equipment, which reduces the height of the power exchange equipment on the basis of ensuring the lifting stroke by optimizing the lifting device structure so as to adapt to power exchange vehicles with different chassis heights.

The technical scheme adopted by the application is as follows:

the application discloses a power conversion device which comprises a power conversion base, a power conversion platform and a lifting device, wherein the lifting device acts on the power conversion platform to enable the power conversion platform to lift relative to the power conversion base, the lifting device comprises a lifting driving unit and a transmission unit which are in transmission connection, the transmission unit comprises a connecting rod type telescopic mechanism, the connecting rod type telescopic mechanism comprises a first rod assembly and a second rod assembly which are in cross connection, and the same side of the first rod assembly and the same side of the second rod assembly face the power conversion platform.

Through setting up connecting rod formula telescopic machanism in one side of trading electric platform, compare in setting up connecting rod formula telescopic machanism in the bottom of trading electric platform, can reduce the height of trading electric equipment, and then conveniently trade electric equipment and travel to the bottom of the high vehicle of different chassis and trade the electricity, increase application scenario, the application is extensive. In addition, the lifting stroke of the connecting rod type telescopic mechanism arranged on the side can be designed according to the actual power change requirement, and the lifting height requirement required by power change can be ensured. Therefore, the connecting rod type telescopic mechanism is utilized, the lifting stroke is met, the structure of the power conversion equipment is more compact, the occupied space on the height is small, and the power conversion requirements of power conversion vehicles with different chassis heights can be widely adapted.

Preferably, two ends of the first rod assembly are respectively connected with the power conversion platform and the power conversion base, one end of the second rod assembly is connected with one of the power conversion platform and the power conversion base, and the other end of the second rod assembly is connected to the rod body of the first rod assembly.

Through with the end connection of second pole subassembly on first pole subassembly, and not directly with trade electric platform or trade electric base connection, reduced connecting rod formula telescopic machanism and traded the hookup point position between electric platform or the electric base that trades, and then practiced thrift the slider or rotate the structure quantity such as seat that set up at the hookup point position, optimized and traded electric equipment overall structure, reduce cost lightens whole weight. In addition, the first rod assembly is not connected with the second rod assembly, and the additional space is reserved on one side, which is beneficial to avoiding the structure and avoiding interference.

Preferably, two ends of the second rod assembly are respectively connected with the first rod assembly and the power exchange base in a rotating way, one end of the first rod assembly is connected with the power exchange platform in a rotating way, the other end of the first rod assembly is connected with the power exchange base in a moving way, and the lifting driving unit is used for driving the movable connecting end of the first rod assembly to move so as to enable the power exchange platform to lift.

Through setting up the both ends of second pole subassembly into rotation respectively and connect for the one end of the relative platform that trades of first pole subassembly can be established to rotate and connect and the one end of the relative base that trades of trades is established to remove and is connected, has simplified connecting rod formula telescopic machanism and the connection structure who trades the platform, reduces connecting component quantity, reduce cost, provides the support to the motion of first pole subassembly through the second pole subassembly, is favorable to stable in structure, goes up and down smoothly steadily, keeps better straightness that hangs down. Moreover, based on the structure, the lifting of the level changing platform can be realized by conveniently arranging or installing a lifting driving unit or related structures and the like on the level changing base to drive the movable connecting end of the first rod assembly to move, the space of the level changing base is reasonably utilized, and the reasonable arrangement of the connecting wire bundles of the lifting driving unit is facilitated.

Preferably, the connecting rod type telescopic mechanism is symmetrically arranged on two sides of the battery changing platform, the battery changing platform is provided with a containing groove which is sunken downwards to form a battery pack, and one end of the first rod assembly is connected with the groove side wall of the containing groove.

Through arranging telescopic machanism symmetry in the both sides of trading the electric platform for trade the electric platform and can steadily go up and down, keep the straightness that hangs down. The battery pack is accommodated by the accommodating groove on the battery replacing platform, so that the high sharing of the battery pack and the battery replacing platform is realized, the overall height of the battery pack carried by the battery replacing equipment is reduced, the battery replacing equipment can be more adapted to vehicles with limited bottom space for replacing electricity, the first rod assembly is connected to the groove side wall of the accommodating groove, the battery pack is connected to the bottom of the accommodating groove in comparison with the battery pack, the rod assembly and the battery replacing platform are high in sharing, the overall height of the battery replacing equipment is further reduced, and the vertical structure is compact.

Preferably, the length of the second rod assembly is half of the length of the first rod assembly, and one end of the second rod assembly is connected to the rod body center position of the first rod assembly.

Through setting the length of second pole subassembly to the body of rod central point of first pole subassembly and connect at first pole subassembly, ensure link formula telescopic machanism's structural stability, the drive is more laborsaving, does benefit to the steady lift of trading the electricity platform, and the height maximize that realizes going up and down is applicable to the scene that the vehicle bottom traded the electricity at the limited basis of link formula telescopic machanism angle that opens and shuts and travel limit.

Preferably, two opposite sides of the power conversion platform are respectively provided with a plurality of connecting rod type telescopic mechanisms, and the two connecting rod type telescopic mechanisms positioned on the same side of the power conversion platform are symmetrically arranged.

The plurality of connecting rod type telescopic mechanisms are respectively arranged on the two opposite sides of the power conversion platform, so that the power conversion platform is ensured to stably lift, the whole load is uniform, and the load capacity of the power conversion equipment on the battery pack is improved; in addition, two connecting rod type telescopic mechanisms positioned on the same side of the level changing platform are symmetrically arranged, so that two second rod assemblies in one group can be arranged away from each other and can also be arranged close to each other, the coordination and stability of the whole structure are ensured, the support is stable, and the deflection of the level changing platform is effectively avoided.

Preferably, one side of the power conversion platform is outwards convexly provided with a mounting shaft, and one end of the first rod assembly is rotationally connected with the mounting shaft;

preferably, the link type telescopic mechanism includes a plurality of first lever assemblies arranged side by side in an extending direction of the mounting shaft and a plurality of second lever assemblies engaged with the respective first lever assemblies.

The connection part of the battery replacement platform and the connecting rod type telescopic mechanism is reinforced by arranging the mounting shaft, so that the effective support of the battery replacement platform is ensured; in addition, a plurality of first pole components are arranged in parallel along the extending direction of the installation shaft, stress points of the installation shaft are dispersed, the installation shaft is prevented from being bent, the overall structural strength is improved, and reliable support of the battery replacement platform is maintained.

Preferably, the second lever assembly includes a first clamping lever and a second clamping lever clamped at both sides of the first lever assembly;

preferably, the power conversion base is provided with a flaky rotating seat, one ends of the first clamping rod and the second clamping rod are respectively connected to two sides of the rotating seat in a rotating mode, and the other ends of the first clamping rod and the second clamping rod are connected to two sides of the second rod assembly in a rotating mode.

Through setting up the centre gripping in first clamping lever and the second clamping lever of first pole subassembly both sides, can reduce the thickness of pole subassembly, conveniently process and connect at the rotation link of first pole subassembly and second pole subassembly simultaneously, improve the connection stability of connecting the tip, moreover, do benefit to the assembly to rotating structures such as seat, improve structural reliability.

Preferably, the power conversion equipment further comprises a travelling mechanism arranged on the power conversion base, the travelling mechanism comprises travelling wheels and a driving mechanism, the travelling wheels comprise first travelling wheels and second travelling wheels which are rotatably arranged on two sides of the power conversion base, the driving mechanism comprises first driving mechanisms and second driving mechanisms which are in one-to-one corresponding transmission connection with the first travelling wheels and the second travelling wheels, so that the power conversion equipment can travel and move, and the travelling direction of the power conversion equipment is adjusted by controlling the speed difference between the first travelling wheels and the second travelling wheels so as to be matched with the parking position of the power conversion vehicle.

On the basis of setting the first traveling wheel and the second traveling wheel to realize the straight line traveling of the power conversion equipment, the traveling direction of the power conversion equipment is adjusted by controlling the speed difference between the first traveling wheel and the second traveling wheel so as to be matched with the parking position of the power conversion vehicle. Specifically, in the process that the battery replacement equipment walks towards the bottom of the vehicle, the traveling angle of the battery replacement equipment can be adjusted by controlling the speed difference between the first traveling wheel and the second traveling wheel in a forward different rotation speed mode, so that the battery replacement equipment is directly aligned with a battery pack or a battery pack mounting position at the bottom of the vehicle accurately; or after the battery replacement equipment walks to a preset position at the bottom of the vehicle, the speed difference between the first walking wheel and the second walking wheel is controlled in a reverse rotation mode, so that the gesture of the battery replacement equipment is twisted, the accurate alignment of the battery replacement equipment and the battery pack at the bottom of the vehicle or the installation position of the battery pack is realized, namely, the locking and unlocking mechanism on the battery replacement platform is aligned with the locking mechanism on the battery pack, so that the locking and unlocking operation of the battery pack is carried out, and the battery pack is convenient to detach or install quickly, and the battery replacement efficiency is improved.

Preferably, the first travelling wheel and the second travelling wheel are respectively arranged at the middle positions of the two sides of the power exchange equipment, and auxiliary wheels are respectively arranged at the end angle positions of the power exchange equipment;

Preferably, the power conversion base comprises two longitudinal frames arranged on two sides in parallel and two transverse frames connecting the two longitudinal frames, the first travelling wheel and the second travelling wheel are respectively arranged in the middle of the two longitudinal frames, the auxiliary wheel is arranged at the connecting position of the transverse frames and the longitudinal frames, the first rod assembly and the second rod assembly are both arranged on the transverse frames, the lifting driving unit is arranged on the transverse frames and is positioned at the side of the first rod assembly and the first rod assembly, the movable connecting end of the first rod assembly is movably connected with the transverse frames, and the lifting driving unit drives the movable connecting end of the first rod assembly to move so as to lift the power conversion platform;

Preferably, the first travelling wheel and the second travelling wheel are positioned at two sides of the power conversion base along the travelling direction, the connecting rod type telescopic mechanism is arranged at the other two sides of the power conversion base, the first driving mechanism and/or the second driving mechanism comprises a driving motor and a transmission assembly, and the driving motor is positioned at one side of the power conversion base, provided with the connecting rod type telescopic mechanism, and transmits power to the first travelling wheel and/or the second travelling wheel through the transmission assembly.

Through locating the intermediate position of trading electric equipment both sides respectively with first walking wheel and second walking wheel for utilize the in-process of walking of first walking wheel and second walking wheel differential, trade the whole atress of electric base balanced, the drive is laborsaving more, does benefit to the centering adjustment of trading electric platform and vehicle trading electric potential, makes the location of trading electric equipment accurate. Through setting up the auxiliary wheel for the power conversion base atress is more balanced in the in-process of traveling, and is stable to the support of battery package. Through setting up vertical frame and horizontal frame, simplify the structure of trading the electric base, make overall layout reasonable, arrange first pole subassembly, second pole subassembly on horizontal frame, lift drive unit sets up on horizontal frame and lie in the side at first pole subassembly and first pole subassembly, lift drive unit and two pole subassemblies share trading the horizontal space of electric equipment, horizontal span reduces, compact structure does benefit to reducing trading the horizontal size of electric equipment, make things convenient for trading electric equipment to pass in and out from vehicle width direction, can extensively adapt to the trading electric demand of different trading electric vehicles; through first pole subassembly, second pole subassembly arrangement on horizontal frame, two pole subassemblies can distribute in the width both sides of girder at the power conversion in-process, reduce the risk that pole subassembly in-process and girder take place to interfere.

Through setting up the driving motor of first actuating mechanism or second actuating mechanism in connecting rod formula telescopic machanism's same one side, the both ends of direction of travel can practice thrift the space, avoids trading the electricity equipment too wide, and space utilization is reasonable, makes things convenient for trading the electricity equipment to get in and out from vehicle width direction. And the wiring harness is beneficial to centralizing power, so that the winding caused by overlong wiring harness is avoided, and the wiring is complex.

Preferably, the bottom of trading the electric base is equipped with the direction subassembly, and the direction subassembly is used for with trading the guide rail looks adaptation in the walking passageway of electric equipment and carries out walking direction to the electric equipment, and the direction subassembly is including pressing from both sides a plurality of leading wheels of locating the guide rail both sides and fixing on trading the electric base in order to be used for installing the mount pad of leading wheel.

Through the guide component and the guide rail adaptation that set up, guide the battery replacement equipment and travel along the guide rail with the appointed route for the battery replacement equipment can rapidly and accurately travel to the vehicle bottom of changing, realizes that the vehicle bottom trades the electricity. The guide assembly is provided with the leading wheel and the mount pad, realizes the installation through mount pad and the base that trades the electricity, and the rethread leading wheel realizes sliding connection with the guide rail and realizes the direction, and the structure is more reliable.

Preferably, the mounting seat comprises a frame body fixed on the power exchange base and provided with a containing cavity and a sliding block slidably arranged in the frame body, and the guide wheel is rotatably connected to the bottom surface of the sliding block through a shaft rod;

Preferably, the guide assembly further comprises a bolt arranged on the power exchange base and close to the frame body, a positioning hole is formed in the side face of the sliding block, facing the bolt, of the sliding block, and the bolt can be arranged in a telescopic mode relative to the positioning hole so as to fix or release the position of the guide wheel.

In this scheme, the slider slidable locates in the framework, can realize the nimble adjustment position or the position of slider relative framework, and then drive the position adjustment of leading wheel, when first walking wheel and the same direction rotation of second walking wheel, the power conversion equipment is straight line and is gone, slider and framework keep at an angle, when first walking wheel and the differential rotation of second walking wheel, power conversion equipment can change the walking direction or take place the gesture and twist reverse, because slider and framework sliding fit, both have the activity allowance for loose fit relation, the framework rotates along with the power conversion base, the angle of slider adaptation adjustment its relative frame, and then prevent leading wheel and the guide rail jamming on the slider for power conversion equipment can smoothly adjust, and then the deflection angle of adaptation power conversion vehicle, with the battery package or the battery package mounted position accurate alignment of trading the train bottom.

Through setting up the bolt, the bolt can stretch out and draw back the setting with fixed or release the position of leading wheel with the locating hole relatively, consequently, when changing electric equipment needs straight line to travel, can insert the position of fixed leading wheel in the locating hole through the control bolt, thereby make leading wheel and guide rail adaptation in order to walk the direction, when changing electric equipment needs adjustment walking direction or take place the gesture torsion, release the leading wheel through the control bolt break away from the locating hole, make its action that can adapt to changing electric equipment and follow up freely, avoid leading wheel and guide rail jamming, ensure the different state switch of changing electric equipment.

By adopting the technical scheme, the application has the following beneficial effects:

1. Compared with the connecting rod type telescopic mechanism arranged at the bottom of the power conversion platform, the height of the power conversion equipment can be reduced, so that the power conversion equipment can conveniently drive to the bottoms of vehicles with different chassis heights to convert power, the application scene is increased, and the power conversion equipment is widely applied. In addition, the lifting stroke of the connecting rod type telescopic mechanism arranged on the side can be designed according to the actual power change requirement, and the lifting height requirement required by power change can be ensured. Therefore, the connecting rod type telescopic mechanism is utilized, the lifting stroke is met, the structure of the power conversion equipment is more compact, the occupied space on the height is small, and the power conversion requirements of power conversion vehicles with different chassis heights can be widely adapted.

2. As a preferred embodiment of the application, the end part of the second rod component is connected to the first rod component, but is not directly connected with the power conversion platform or the power conversion base, so that the connection point positions of the connecting rod type telescopic mechanism between the power conversion platform or the power conversion base are reduced, the number of sliding blocks or rotating seats and other structures arranged at the connection point positions is further reduced, the integral structure of the power conversion equipment is optimized, the cost is reduced, and the integral weight is reduced. The mobile load of the power conversion equipment is reduced, the mobile load is flexible and accurate, the power conversion efficiency is improved, in addition, an additional space is reserved on the side, which is not connected with the second rod assembly, of the first rod assembly, the structure is facilitated, and interference is avoided.

3. As a preferred embodiment of the application, the driving mechanism comprises a first driving mechanism and a second driving mechanism which are in transmission connection with the first travelling wheel and the second travelling wheel in a one-to-one correspondence manner so as to realize the travelling movement of the power exchange device, and the travelling direction of the power exchange device is adjusted to be matched with the parking position of the power exchange vehicle by controlling the speed difference between the first travelling wheel and the second travelling wheel. Specifically, in the process that the battery replacing equipment walks towards the bottom of the vehicle, the traveling angle of the battery replacing equipment can be adjusted by controlling the first traveling wheel and the second traveling wheel in a forward different rotating speed mode so that the battery replacing equipment is directly aligned with a battery pack or a battery pack mounting position at the bottom of the vehicle accurately; or after the battery replacement equipment walks to a preset position at the bottom of the vehicle, the speed difference between the first walking wheel and the second walking wheel is controlled in a reverse rotation mode, so that the gesture of the battery replacement equipment is twisted, the accurate alignment of the battery replacement equipment and the battery pack at the bottom of the vehicle or the installation position of the battery pack is realized, namely, the locking and unlocking mechanism on the battery replacement platform is aligned with the locking mechanism on the battery pack, so that the locking and unlocking operation of the battery pack is carried out, and the battery pack is convenient to detach or install quickly, and the battery replacement efficiency is improved.

4. According to the application, the guide assembly is matched with the guide rail, so that the power conversion equipment is guided to run along the guide rail in a specified route, the power conversion equipment can quickly and accurately run to the bottom of the power conversion vehicle, and the power conversion of the bottom of the vehicle is realized. The guide assembly is provided with the leading wheel and the mount pad, realizes the installation through mount pad and the base that trades the electricity, and the rethread leading wheel realizes sliding connection with the guide rail and realizes the direction, and the structure is more reliable.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

Fig. 1 is a schematic structural diagram of a power conversion device in a power conversion state according to an embodiment of the present application.

Fig. 2 is a schematic perspective view of a power conversion device according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a lifting device according to an embodiment of the application.

Fig. 4 is a schematic structural view of a lifting device and a travelling mechanism according to an embodiment of the present application.

Fig. 5 is a top view illustrating a structure of a power conversion apparatus in a power conversion state according to an embodiment of the present application.

Fig. 6 is an enlarged schematic view of the portion a in fig. 5.

Fig. 7 is a schematic view showing the cooperation of the guide assembly and the guide rail in an embodiment of the present application.

Description of the drawings:

10-a power conversion base; 101-a longitudinal frame; 102-a transverse frame; 20-a power conversion platform; 21-mounting a shaft; 22-a receiving groove; 23-supporting walls; 24-vertical side walls; 30-lifting device; 11-sliding pairs; 111-slide rails; 112-mounting base; 113-a sliding groove; 12-rotating a seat; 40-lifting driving unit; 41-an electric motor; 42-a screw assembly; 421-rotation; 422-a rotation axis; 50-a transmission unit; 51-a first lever assembly; 511-a mobile connection; 52-a second lever assembly; 521-a first clamping bar; 522-a second clamping bar; 53-synchronizing bar; 60-battery pack; 70-girder; 80-a travelling mechanism; 81-a first travelling wheel; 82-a second travelling wheel; 83-a first drive mechanism; 84-a second drive mechanism; 85-auxiliary wheels; 86-driving a motor; 87-a transmission assembly; 90-guide rails; 91-a guide assembly; 911-guiding wheels; 912—a mount; 9121-a frame; 9122-a slider; 93-a bolt.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below. It should be noted that, without conflict, embodiments of the present application and features in each embodiment may be combined with each other.

In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 and 2, the application discloses a power exchange device in one embodiment, which comprises a power exchange base 10, a power exchange platform 20 and a lifting device 30, wherein the power exchange platform 20 is used for supporting a battery pack 60, the lifting device 30 acts on the power exchange platform 20 to enable the power exchange platform 20 to lift relative to the power exchange base 10, the lifting device 30 comprises a lifting driving unit 40 and a driving unit 50 which are in transmission connection, the driving unit 50 comprises a connecting rod type telescopic mechanism, the connecting rod type telescopic mechanism comprises a first rod assembly 51 and a second rod assembly 52 which are in cross connection, and the same side of the first rod assembly 51 and the second rod assembly 52 faces the power exchange platform 20.

In this embodiment, the connecting rod type telescopic mechanism is arranged on one side of the level changing platform 20, compared with the connecting rod type telescopic mechanism arranged on the bottom of the level changing platform 20, the height of the battery replacing equipment can be reduced, and then the battery replacing equipment can conveniently travel to the bottoms of vehicles with different chassis heights to replace electricity, so that the application scene is increased, and the application is wide. In addition, the lifting stroke of the connecting rod type telescopic mechanism arranged on the side can be designed according to the actual power change requirement, and the lifting height requirement required by power change can be ensured. Therefore, the connecting rod type telescopic mechanism is utilized, the lifting stroke is met, the structure of the power conversion equipment is more compact, the occupied space on the height is small, and the power conversion requirements of power conversion vehicles with different chassis heights can be widely adapted.

As shown in fig. 1 and 2, preferably, both ends, i.e., the top and bottom ends, of the first lever assembly 51 are connected to the power conversion table 20 and the power conversion base 10, respectively, and one end of the second lever assembly 52 is connected to the power conversion base 10 and the other end is connected to the lever body of the first lever assembly 51.

Of course, it is understood that one end of the second pole assembly 52 is not limited to connection to the power conversion base 10, and in another preferred embodiment, one end of the second pole assembly 52 is connected to the power conversion table 20.

Through connecting the one end of second pole subassembly 51 on first pole subassembly 51, and not directly be connected with trading level platform 20 or trading the electricity base 10, reduced the connecting point position of connecting rod telescopic machanism between trading the electricity platform 20 or trading the electricity base 10, and then practiced thrift the structure quantity such as slider or the rotation seat that set up at the connecting point position, optimized trading electric equipment overall structure, the cost is reduced, lighten whole weight. In addition, an additional space is reserved on the side, which is not connected with the second rod assembly 52, of the first rod assembly 51, so that the structure is avoided, and interference is avoided.

One end of the second rod assembly 52 is connected with the level changing platform 20 or the level changing base 10, so that structural stability of the connecting rod type telescopic mechanism can be guaranteed, coordination and stability of the whole structure of the level changing platform 20 are realized, support of the level changing platform 20 is stable, and deflection of the level changing platform 20 is effectively avoided.

More specifically, as shown in fig. 3, the second rod assembly 52 has a length half that of the first rod assembly 51, and one end of the second rod assembly 52 is connected to the rod center of the first rod assembly 51.

Through setting the length of second pole subassembly 52 to the body of rod central point of first pole subassembly 51 half and connect at first pole subassembly 51, ensure link formula telescopic machanism's structural stability, the drive is more laborsaving, does benefit to the steady lift of trading level platform 20, and the height maximize that realizes going up and down is applicable to the scene that vehicle bottom traded the electricity at the limited basis of link formula telescopic machanism angle that opens and shuts and travel limit, and the practicality is wider.

As shown in fig. 1, preferably, both ends of the second lever assembly 52 are rotatably connected to the first lever assembly 51 and the power exchanging base 10, respectively, one end of the first lever assembly 51 is rotatably connected to the power exchanging base 20, the other end of the first lever assembly 51 is movably connected to the power exchanging base 10, and the elevation driving unit 40 is used for driving the movable connection end 511 of the first lever assembly 51 to move in the direction shown by the arrow a in fig. 1 to elevate the power exchanging base 20.

Through setting up the both ends of second pole subassembly 52 respectively to rotate and connect for the one end of first pole subassembly 51 relative to trade electric platform 20 can be established to rotate and connect and the one end of relative trade electric base 10 is established to remove and is connected, has simplified the connection structure of connecting rod telescopic machanism and trading electric platform 20, reduces connecting component quantity, reduce cost, provides the support to the motion of first pole subassembly 51 through second pole subassembly 52, is favorable to stable in structure, and it is smooth and easy steady to go up and down, keeps better straightness that hangs down. Moreover, based on the structure, the lifting of the level changing platform 20 can be realized by conveniently arranging or installing the lifting driving unit 40 or related structures and the like on the level changing base 10 to drive the movable connecting end of the first rod assembly 51 to move, so that the space of the level changing base 10 is reasonably utilized, and the reasonable arrangement of the connecting wire bundles of the lifting driving unit 40 is facilitated.

As shown in fig. 1, with respect to the specific structure of the above-mentioned movable connection position, more preferably, the movable connection end 511 of the first rod assembly 51 is slidably connected with the power exchanging base 10 through the sliding pair 11, and referring to fig. 3 and 4, the sliding pair 11 includes a sliding rail 111 and a mounting seat 112, the sliding rail 111 is fixedly disposed on the power exchanging base 10, a sliding groove 113 slidably connected with the sliding rail 111 is disposed at the bottom of the mounting seat 112, and the movable connection end 511 of the first rod assembly 51 is rotatably connected with the mounting seat 112. Through the mutual cooperation of slide rail 111 and mount pad 112, can enough help the smooth and easy slip of first pole subassembly 51, realize trading the level platform and steadily go up and down, simultaneously, can realize the control of first pole subassembly 51 sliding stroke through setting up the structure of ending or sensing part at slide rail 111 and mount pad 112, and then control trades the lift stroke of electric equipment.

As shown in fig. 3 and 4, with respect to the specific structure of the above-mentioned rotational position, more preferably, the rotational connection end of the second lever assembly 52 is rotatably connected to the power exchanging base 10 by the sheet-shaped rotational base 12, and the rotational shaft passes through the second lever assembly to be rotatably connected to the rotational base 12. Preferably, a copper sleeve is provided at the rotation shaft.

As shown in fig. 2, preferably, one side of the level shifter 20 is provided with a mounting shaft 21 protruding outwards, and the top end of the first rod assembly 51 is rotatably connected with the mounting shaft 21 through a copper sleeve; the connection part between the battery exchange platform 20 and the connecting rod type telescopic mechanism is reinforced by arranging the mounting shaft 21.

As shown in fig. 4, more preferably, the link type telescopic mechanism includes a plurality of first lever assemblies 51 arranged side by side in the extending direction of the mounting shaft 21 and second lever assemblies 52 engaged with the respective first lever assemblies 51, the second lever assemblies 52 including first and second clamp bars 521 and 522 clamped on both sides of the first lever assemblies 51. Specifically, as shown in fig. 4, two first lever assemblies 51 are arranged side by side in the extending direction of the mounting shaft 21, wherein both sides of each first lever assembly 51 sandwich the first clamping lever 521 and the second clamping lever 522.

The connection part of the battery replacing platform 20 and the connecting rod type telescopic mechanism is reinforced by arranging the mounting shaft 21, so that the effective support of the battery replacing platform 20 is ensured; in addition, a plurality of first rod assemblies 51 are arranged in parallel along the extending direction of the mounting shaft 21, so that stress points of the mounting shaft 21 are dispersed, bending of the mounting shaft 21 is avoided, the overall structural strength is increased, and reliable support of the battery exchange platform 20 is maintained.

As shown in fig. 3 and 4, specifically, the power conversion base 10 is provided with a sheet-shaped rotating base 12, one ends of the first clamping rod 521 and the second clamping rod 522 are respectively rotatably connected to two sides of the rotating base 12, and the other ends of the first clamping rod 521 and the second clamping rod 522 are rotatably connected to two sides of the first rod assembly 51.

Regarding the connection structure between the ends of the first rod assembly 51 and the second rod assembly 52, preferably, the first clamping rod 521 and the second clamping rod 522 clamp the middle part of the first rod assembly 51, and the three parts are provided with through holes at the connection positions, and the copper sleeve and the fixed shaft are arranged in the through holes, so that the three parts are rotationally connected.

Through setting up the first clamping lever 521 and the second clamping lever 522 of centre gripping in first pole subassembly 51 both sides, can reduce the thickness of single second pole subassembly, conveniently process and connect at the rotation link of first pole subassembly 51 and second pole subassembly 52 simultaneously, improve the connection stability of connecting the tip, moreover, do benefit to the assembly to structures such as rotating seat, improve structural reliability.

It will be appreciated that when the second lever assembly is a single lever body, the rotational connection may be achieved in the same manner as described above.

As shown in fig. 1 and 2, the link type telescopic mechanism is preferably symmetrically arranged at both sides of the battery changing table 20, and in particular, the battery changing table 20 is provided with a receiving groove 22 recessed downward to form a battery pack, and one end of the first lever assembly 51 is connected to a groove sidewall of the receiving groove 22. Two opposite sides of the level changing table 20 are respectively provided with a plurality of connecting rod type telescopic mechanisms, and two connecting rod type telescopic mechanisms positioned on the same side of the level changing table 20 are symmetrically arranged.

By providing a plurality of link-type telescopic mechanisms on opposite sides of the level shifter 20, respectively, two link-type telescopic mechanisms on the same side of the level shifter 20 are symmetrically arranged, specifically, as shown in fig. 2 and fig. 4, two second rod assemblies 52 in a group are arranged away from each other, and the two second rod assemblies 52 are connected to the power-exchanging base.

Of course, in another embodiment, two second rod assemblies 52 in one side are disposed proximate to each other.

The two connecting rod type telescopic mechanisms positioned on the same side of the level changing platform 20 are symmetrically arranged, the two second rod assemblies 52 are mutually close to or mutually far away from each other, the coordination and stability of the whole structure can be ensured, the support is stable, and the deflection of the level changing platform is effectively avoided.

In practice, the two link-type telescopic mechanisms in one side may be arranged asymmetrically, for example, one of the two second lever assemblies 52 in one set is connected to the power exchange base and the other is connected to the power exchange table.

As shown in fig. 1 and 2, more preferably, the level shifter 20 includes a support wall 23 extending in a lateral direction and two vertical side walls 24 protruding upward from the support wall, the two vertical side walls being disposed opposite to each other so as to enclose the accommodation groove 22. By symmetrically arranging the telescopic mechanisms on two sides of the level changing platform 20, the level changing platform 20 can stably lift and keep the lifting verticality. The accommodating groove 22 is formed in the level changing table 20, the height sharing of the battery pack and the level changing table 20 is achieved, the overall height is reduced, the battery pack and the level changing table are more suitable for the situation that the space at the bottom of a vehicle is limited, the first rod assembly 51 is connected to the side wall of the accommodating groove 22, compared with the situation that the first rod assembly is connected to the bottom of the accommodating groove 22, the battery pack and the level changing table 20 are shared, the overall height of the battery pack and the level changing table 20 is further reduced, and the battery pack and the level changing table are compact in vertical structure.

As shown in fig. 5 and 6, preferably, the elevation driving unit 40 includes a power motor 41 and a screw assembly 42, the screw assembly 42 includes a rotation shaft and a rotating member coupled to the outer side of the rotation shaft in a sleeved manner, a motor shaft of the power motor 41 is connected to the rotation shaft through a coupling member 43, and when the rotation shaft rotates with the motor shaft of the power motor 41, the rotating member moves in a straight line to drive the moving connection end 511 of the first lever assembly to move in a straight line. More specifically, a synchronizing lever 53 is provided between the two first lever assemblies 51 arranged in parallel, both ends of the synchronizing lever 53 are respectively connected to the moving connection ends 511 of the two first lever assemblies, and synchronous driving of the two first lever assemblies is achieved by driving the synchronizing lever 53 to move.

Of course, the structure of the elevation driving unit 40 is not limited to the above one, and in practice, the linear driving of the moving connection end 511 of the first lever assembly may be directly implemented by a hydraulic cylinder or a pneumatic cylinder.

As shown in fig. 5, preferably, the power conversion device further includes a traveling mechanism 80 disposed on the power conversion base 10, the traveling mechanism 80 includes traveling wheels including a first traveling wheel 81 and a second traveling wheel 82 rotatably disposed at both sides of the power conversion base 10, and the driving mechanism includes a first driving mechanism 83 and a second driving mechanism 84 in one-to-one transmission connection with the first traveling wheel 81 and the second traveling wheel 82, so as to realize traveling movement of the power conversion device along a first direction (as indicated by a B arrow in fig. 5), and the traveling direction of the power conversion device is adjusted by controlling a speed difference between the first traveling wheel 81 and the second traveling wheel 82 so as to be adapted to a parking position of the power conversion vehicle.

On the basis of setting the first travelling wheel 81 and the second travelling wheel 82 to realize the straight line travelling of the battery exchange device, the travelling direction of the battery exchange device is adjusted by controlling the speed difference between the first travelling wheel 81 and the second travelling wheel 82 so as to be matched with the parking position of the battery exchange vehicle. Specifically, in the process that the battery replacing device walks towards the bottom of the vehicle, the traveling angle of the battery replacing device can be adjusted by controlling the first traveling wheel 81 and the second traveling wheel 82 to have speed difference in a forward different rotation speed mode, so that the battery replacing device is directly aligned with a battery pack or a battery pack installation position at the bottom of the vehicle accurately; or after the battery replacement device walks to a preset position at the bottom of the vehicle, the first travelling wheel 81 and the second travelling wheel 82 are controlled in a reverse rotation mode to have a speed difference so that the gesture of the battery replacement device is twisted, and the accurate alignment of the battery replacement device and the battery pack at the bottom of the vehicle or the mounting position of the battery pack is realized, namely, the locking and unlocking mechanism on the battery replacement platform is aligned with the locking mechanism on the battery pack, so that the locking and unlocking operation of the battery pack is carried out, and the battery pack is convenient to detach or mount quickly, and the battery replacement efficiency is improved.

As shown in fig. 4, preferably, the first travelling wheel 81 and the second travelling wheel 82 are respectively arranged at the middle positions of two sides of the power exchange device, and auxiliary wheels 85 are respectively arranged at the end angle positions of the power exchange device.

As shown in fig. 4, preferably, the first travelling wheel 81 and the second travelling wheel 82 are located at two sides of the power exchange base 10 along the travelling direction, the link telescopic mechanism is disposed at the other two sides of the power exchange base 10, the first driving mechanism and the second driving mechanism each comprise a driving motor 86 and a transmission assembly 87, and the driving motor 86 is located at one side of the power exchange base 10 where the link telescopic mechanism is disposed and transmits power to the first travelling wheel 81 and/or the second travelling wheel 82 through the transmission assembly 87. More preferably, the drive assembly 87 is a rack and pinion assembly or a sprocket and chain configuration.

Specifically, as shown in fig. 1 and 5, the power conversion base 10 includes two longitudinal frames 101 arranged in parallel on both sides and two lateral frames 102 connecting the two longitudinal frames, the first traveling wheel 81 and the second traveling wheel 82 are respectively provided in the middle of the two longitudinal frames 101, and the auxiliary wheel 85 is located at the longitudinal frames near the connection position of the lateral frames and the longitudinal frames. As shown in fig. 5, the first and second lever assemblies 51 and 52 are mounted on the lateral frame 102, and the elevation driving unit 40 is disposed on the lateral frame 102 at a side of the first and second lever assemblies 51 and 52, and the moving connection end 511 of the first lever assembly 51 is connected to the lateral frame 102, and the elevation driving unit drives the moving connection end 511 of the first lever assembly 51 to move to elevate the level shifter 20;

Through locating the intermediate position of trading electric equipment both sides respectively with first walking wheel 81 and second walking wheel 82 for utilize the in-process of walking of first walking wheel 81 and second walking wheel 82 differential, trade electric base 10 whole atress balanced, the drive is laborsaving more, does benefit to the centering adjustment of trading electric platform 20 and vehicle trading electric potential, makes the location of trading electric equipment accurate. By arranging the auxiliary wheels, the power conversion base 10 is more balanced in stress in the running process, and the battery pack is supported stably. By providing the longitudinal frames and the transverse frames, the structure of the power exchange base 10 is simplified, and the overall layout is more compact and reasonable. The first rod assembly 51, the second rod assembly 52 and the lifting driving unit 40 are reasonably arranged on the transverse frame 102, the first rod assembly 51 and the second rod assembly 52 are arranged on the transverse frame 102, the lifting driving unit 40 is arranged on the transverse frame 102 and is positioned at the side of the first rod assembly 51 and the side of the first rod assembly 51, the lifting driving unit 40 and the two rod assemblies share the transverse space of the power exchange device, the transverse span is reduced, the structure is compact, the transverse size of the power exchange device is reduced, the power exchange device is convenient to enter and exit from the width direction of a vehicle, and the power exchange requirement of different power exchange vehicles can be widely adapted; by arranging the first and second pole assemblies 51, 52 on the transverse frame 102, both pole assemblies can be distributed on both sides of the width of the girder during the power change, reducing the risk of interference with the girder during the lifting of the pole assemblies.

Through setting up the driving motor of first actuating mechanism 83 and second actuating mechanism 84 in the same side of connecting rod formula telescopic machanism, the both ends of the direction of travel of trading the electric equipment promptly, can practice thrift the space, avoid trading the electric equipment too wide, space utilization is reasonable, makes things convenient for trading the electric equipment to get in and out from vehicle width direction. And the wiring harness concentration of the motor is facilitated, winding caused by overlong wiring harness is avoided, and wiring is complex.

As shown in fig. 1, preferably, a guiding component 91 is disposed at the bottom of the power conversion base 10, the guiding component 91 is adapted to a guide rail 90 in a running channel of the power conversion device to guide the running of the power conversion device, and the guiding component 91 includes a plurality of guiding wheels 911 clamped at two sides of the guide rail 90 and a mounting seat 912 fixed on the power conversion base 10 for mounting the guiding wheels 911. As shown in fig. 7, the mounting seat 912 includes a frame 9121 fixed to the power conversion base 10 and having a receiving cavity, and a slider 9122 slidably disposed in the frame, and the guide wheel 911 is rotatably connected to a bottom surface of the slider 9122 through a shaft.

More preferably, referring to fig. 6, the guiding assembly 91 further includes a latch 93 disposed on the power exchange base 10 and close to the frame, a positioning hole is disposed on a side of the slider 9122 facing the latch, and the latch 93 can be telescopically disposed with respect to the positioning hole to fix or release the position of the guiding wheel 911. For example, the bolt 93 extends into the insertion positioning hole, so that the bolt and the sliding block are limited and fixed, and the guide wheel and the guide rail of the sliding block are limited, thereby being beneficial to limiting and guiding the straight running process of the battery replacement equipment; when the bolt 93 is contracted and separated from the positioning hole of the sliding block, although the guide wheel is in contact with the guide rail, the sliding block can deflect relative to the frame due to a deflection gap between the sliding block and the frame, the guide effect of the guide rail on the power exchange equipment is invalid, and the power exchange equipment is controlled to deflect according to the speed difference of the travelling wheel.

Through the guide component 91 and the guide rail 90 adaptation that set up, guide the battery replacement equipment along guide rail 90 with appointed route travel for the battery replacement equipment can be fast and accurate travel to the vehicle bottom of changing, realizes that the vehicle bottom changes the electricity. The guide assembly 91 is provided with the guide wheel 911 and the mounting seat 912, realizes the installation through the mounting seat 912 and the power conversion base 10, and realizes the guide by utilizing the sliding connection of the guide wheel 911 and the guide rail 90, thereby realizing the guide and ensuring the structure more reliable.

In this scheme, the sliding block 9122 is slidably disposed in the frame 9121, so that the sliding block 9122 can flexibly adjust the position or position relative to the frame 9121, and further drive the position adjustment of the guide wheel 911, when the first travelling wheel 81 and the second travelling wheel 82 rotate in the same direction, the power conversion device runs straight, the sliding block 9122 and the frame 9121 are kept at an angle, when the first travelling wheel 81 and the second travelling wheel 82 rotate in a differential manner, the power conversion device can change the travelling direction or twist in posture, because the sliding block 9122 and the frame 9121 are in loose fit and have a movable allowance, the frame 9121 rotates along with the power conversion base, the sliding block 9122 adapts to adjust the angle relative to the frame, and further prevents the guide wheel 911 and the guide rail 90 on the sliding block 9122 from being stuck, so that the power conversion device can be smoothly adjusted, and further adapt to the deflection angle of the power conversion vehicle, so as to accurately align with the battery pack or the battery pack mounting position at the bottom of the power conversion vehicle.

Through setting up the bolt 93, the bolt 93 can stretch out and draw back the setting with the position of fixed or release leading wheel 911 relatively to consequently, when changing electric equipment needs straight line to travel, can insert the position of fixed leading wheel 911 in the locating hole through control bolt 93, thereby make leading wheel 911 and guide rail adaptation in order to walk the direction, when changing electric equipment needs adjustment walking direction or take place the gesture torsion, release leading wheel 911 through control bolt 93 break away from the locating hole, make it can adapt to changing electric equipment's action and follow-up freely, avoid leading wheel 911 and guide rail 90 jamming, ensure changing electric equipment's different state switch.

As shown in fig. 1 to 7, taking the above preferred embodiment as an example, a process of disassembling a battery pack of a battery replacement device will be described in detail:

Firstly, controlling the power conversion equipment to travel to a power conversion position corresponding to the bottom of the current power conversion vehicle:

The first travelling wheel 81 and the second travelling wheel 82 of the power exchange device are controlled to rotate at the same speed, so that the power exchange device runs along the direction B (width direction of the power exchange vehicle) in fig. 1 from the side direction of the power exchange vehicle to the bottom of the power exchange vehicle, and the retaining latch 93 is in plug-in fit with the sliding block 9122 in the running process, so that the running process is guided through the limit fit of the guide wheel and the guide rail, and the power exchange device runs straight along the guide rail 90.

When the deviation information of the rotation angle between the actual parking position of the battery changing vehicle and the standard battery changing position is obtained, the walking direction of the walking process can be changed, the gesture of the battery changing device can be twisted when the vehicle moves to the preset position at the bottom of the battery changing vehicle, and the accurate alignment of the battery changing device and the battery pack or the battery pack mounting position at the bottom of the current battery changing vehicle can be realized, namely, the battery changing device is ensured to move to the battery changing position corresponding to the current battery changing vehicle. The specific process is as follows:

The control bolt 93 can be separated from the sliding block 9122 in the running process of the power exchange equipment, so that the guide wheel can be free to follow, and the running direction of the power exchange equipment is changed by controlling the first running wheel 81 and the second running wheel 82 to rotate in the same direction and at different speeds, so that the power exchange equipment can be ensured to run to a power exchange position corresponding to the bottom of a power exchange vehicle. Or after the power conversion equipment walks to a preset position at the bottom of the vehicle, the control bolt 93 is separated from the sliding block 9122, so that the guide wheel 911 can freely follow, and the speed difference between the first travelling wheel 81 and the second travelling wheel 82 is controlled in a reverse rotation mode, so that the posture of the power conversion equipment is twisted, and the accurate alignment of the power conversion equipment and the battery pack or the battery pack mounting position at the bottom of the vehicle is realized.

Then, the level changing platform of the power changing equipment is controlled to lift:

By controlling the lifting driving unit 40 to act, the movable connecting end 511 of the first rod assembly slides along arrow a (the length direction of the battery-changing vehicle) in fig. 1, at this time, the crossing angle of the first rod assembly 51 and the second rod assembly 52 changes, and the top end of the first rod assembly 51 is controlled to lift to drive the battery-changing platform 20 to lift to a battery pack close to the bottom of the vehicle.

Next, the battery pack is unlocked:

the unlocking piece on the battery replacing platform is controlled to act, unlocking of the battery pack is achieved, the battery pack with insufficient power is supported by the battery replacing platform, and then the battery replacing platform is controlled to descend, so that the battery pack can be conveniently transported to a charging position further.

It can be understood that when the full-power battery pack is required to be mounted on the battery-replacing vehicle, the control principle that the battery-replacing device runs to an accurate potential-replacing state and the lifting distance of the battery-replacing platform are the same as the battery pack dismounting principle, and the description is omitted here.

The application can be realized by adopting or referring to the prior art at the places which are not described in the application.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims

1. The utility model provides a trade electric equipment, its characterized in that, includes trading electric base, trades electric platform and lifting means, lifting means acts on trade electric platform makes trade electric platform relatively trade electric base goes up and down, lifting means includes lift drive unit and the drive unit that the transmission is connected, the drive unit includes connecting rod formula telescopic machanism, connecting rod formula telescopic machanism includes cross connection's first pole subassembly and second pole subassembly, first pole subassembly with the same side of second pole subassembly is towards trade electric platform.

2. The power conversion device according to claim 1, wherein two ends of the first rod assembly are respectively connected with the power conversion platform and the power conversion base, one end of the second rod assembly is connected with one of the power conversion platform and the power conversion base, and the other end is connected to a rod body of the first rod assembly.

3. The power exchanging device according to claim 2, wherein two ends of the second rod assembly are respectively rotatably connected with the first rod assembly and the power exchanging base, one end of the first rod assembly is rotatably connected with the power exchanging platform, the other end of the first rod assembly is movably connected with the power exchanging base, and the lifting driving unit is used for driving the movable connecting end of the first rod assembly to move so as to lift the power exchanging platform;

and/or the connecting rod type telescopic mechanisms are symmetrically arranged at two sides of the battery changing platform, the battery changing platform is provided with a containing groove which is sunken downwards to form a battery pack, and one end of the first rod assembly is connected with the groove side wall of the containing groove.

4. The power conversion apparatus according to claim 1, wherein a length of the second lever assembly is half a length of the first lever assembly, and one end of the second lever assembly is connected to a lever body center position of the first lever assembly;

And/or, two opposite sides of the power conversion platform are respectively provided with a plurality of connecting rod type telescopic mechanisms, and two connecting rod type telescopic mechanisms positioned on the same side of the power conversion platform are symmetrically arranged.

5. The power conversion equipment according to claim 1, wherein one side of the power conversion platform is provided with a mounting shaft in an outward protruding manner, and one end of the first rod assembly is rotatably connected with the mounting shaft;

And/or the connecting rod type telescopic mechanism comprises a plurality of first rod assemblies and a plurality of second rod assemblies matched with each first rod assembly, wherein the first rod assemblies are arranged in parallel along the extending direction of the mounting shaft.

6. The power conversion apparatus according to claim 5, wherein the second lever assembly includes a first clamping lever and a second clamping lever clamped on both sides of the first lever assembly;

And/or, a flaky rotating seat is arranged on the power conversion base, one ends of the first clamping rod and the second clamping rod are respectively connected to two sides of the rotating seat in a rotating way, and the other ends of the first clamping rod and the second clamping rod are connected to two sides of the second rod assembly in a rotating way.

7. The power conversion equipment according to any one of claims 1 to 6, further comprising a travelling mechanism arranged on the power conversion base, wherein the travelling mechanism comprises travelling wheels and a driving mechanism, the travelling wheels comprise a first travelling wheel and a second travelling wheel rotatably arranged on two sides of the power conversion base, the driving mechanism comprises a first driving mechanism and a second driving mechanism in one-to-one transmission connection with the first travelling wheel and the second travelling wheel, so that the power conversion equipment can travel, and the travelling direction of the power conversion equipment is adjusted to be matched with the parking position of a power conversion vehicle by controlling the speed difference between the first travelling wheel and the second travelling wheel.

8. The power conversion equipment according to claim 7, wherein the first travelling wheel and the second travelling wheel are respectively arranged at intermediate positions of two sides of the power conversion equipment, and auxiliary wheels are respectively arranged at end angle positions of the power conversion equipment;

And/or the power conversion base comprises two longitudinal frames which are arranged on two sides in parallel and two transverse frames which are used for connecting the two longitudinal frames, the first travelling wheel and the second travelling wheel are respectively arranged in the middle of the two longitudinal frames, the auxiliary wheel is arranged at the connecting position of the transverse frames and the longitudinal frames, the first rod assembly and the second rod assembly are both arranged on the transverse frames, the lifting driving unit is arranged on the transverse frames and is positioned on the side of the first rod assembly and the first rod assembly, the movable connecting end of the first rod assembly is movably connected with the transverse frames, and the lifting driving unit drives the movable connecting end of the first rod assembly to move so as to lift the power conversion platform;

And/or, the first travelling wheel and the second travelling wheel are positioned at two sides of the power conversion base along the travelling direction, the connecting rod type telescopic mechanism is arranged at the other two sides of the power conversion base, the first driving mechanism and/or the second driving mechanism comprises a driving motor and a transmission assembly, and the driving motor is positioned at one side of the power conversion base provided with the connecting rod type telescopic mechanism and transmits power to the first travelling wheel and/or the second travelling wheel through the transmission assembly.

9. The power conversion equipment according to claim 7, wherein a guide assembly is arranged at the bottom of the power conversion base and is used for being matched with a guide rail in a traveling channel of the power conversion equipment to conduct traveling guide on the power conversion equipment, and the guide assembly comprises a plurality of guide wheels clamped on two sides of the guide rail and a mounting seat fixed on the power conversion base and used for mounting the guide wheels.

10. The power conversion equipment according to claim 9, wherein the mounting base comprises a frame body which is fixed on the power conversion base and provided with a containing cavity, and a sliding block which is slidably arranged in the frame body, and the guide wheel is rotatably connected to the bottom surface of the sliding block through a shaft rod;

And/or, the guide assembly further comprises a bolt arranged on the power conversion base and close to the frame body, a positioning hole is formed in the side face of the sliding block, which faces the bolt, and the bolt can be arranged in a telescopic manner relative to the positioning hole so as to fix or release the position of the guide wheel.