CN210000300U - Vehicle carrying assembly, carrying device and power exchange platform - Google Patents

Abstract

The utility model relates to a vehicle bears the weight of the subassembly, bears the weight of the device and trades electric platform. The vehicle bearing assembly is used for replacing a battery platform and has an idle state and a bearing state for bearing a vehicle positioned on the battery replacing platform during battery replacement, and comprises at least two bearing devices which are arranged in such a way that the difference of the levelness of the bearing devices is within a preset range in the bearing state, so that the borne vehicle does not need to be leveled when the battery replacement is carried out. Adopt the utility model discloses need not the leveling operation when trading the electricity operation to the vehicle, can shorten whole electricity time of trading, improve and trade electric efficiency and trade the electricity success rate to can reduce cost, promote user's the electricity of trading and experience.

Description

Vehicle carrying assembly, carrying device and power exchange platform

technical field

The utility model relates to the technical field of battery replacement, in particular to a vehicle bearing assembly, a bearing device, a battery replacement platform and a vehicle battery replacement operation method.

Background technique

With the advancement of science and technology and social development, various types of new energy vehicles such as pure electric vehicles and hybrid vehicles are increasingly widely used. As far as these new vehicles are concerned, aspects such as quick battery replacement are becoming more and more important.

At present, the main working method of the power exchange equipment without civil engineering is to lift the vehicle to a certain height and level it through the motor-driven screw rod, and reserve a certain vertical space for battery replacement. Then, the depleted battery on the vehicle is removed by the locking and unlocking mechanism, and then the transfer mechanism transports it to the battery compartment and takes out the charged battery from the latter, so as to install the charged battery on the vehicle to be replaced. During the process of locking and unlocking the battery, the positioning of the body/battery and the locking and unlocking mechanism must be ensured. Therefore, during the battery replacement process, achieving and maintaining the levelness of the body chassis is a key to ensuring the positioning of the body/battery and the locking and unlocking mechanism. point.

The existing power exchange station usually adopts a four-column lifting device. Before each power exchange operation, it is necessary to level the starting positions of the four column support surfaces used for lifting. Generally, a level is used, and the control cabinet is used. The control program and driving device of the four-post lifting device lift the supporting surfaces of the four columns of the four-post lifting device to a uniform height. However, whether it is manually using a level to level the initial plane of the four columns, or using program control to uniformly lift the support surfaces of these columns to a consistent height, there will be accumulation of errors, which is not conducive to the positioning of the mechanism, and Will adversely affect battery replacement. In addition, during the entire power exchange process, it takes a long time to perform the leveling operation, and a motor-screw transmission mechanism needs to be configured for the four-post lifting device, which also increases the overall cost.

Utility model content

In view of this, the present invention provides a vehicle carrying assembly, a carrying device, a power exchange platform and a vehicle power exchange operation method for a power exchange system, thereby effectively solving or alleviating the above problems and other aspects existing in the prior art one or more of the questions.

First of all, according to a first aspect of the present invention, there is provided a vehicle carrying assembly, which is used for a power exchange platform and has an unloaded state, and is used for carrying a power exchange platform located on the power exchange platform during power exchange. The carrying state of the vehicle on the vehicle, which includes at least two carrying devices, and they are arranged so that in the carrying state, the level difference between each other is within a preset range, so that when the carried vehicle is battery-swapped No levelling operation required.

In the vehicle carrying assembly according to the present invention, optionally, the carrying device includes:

a base mounted on or near the power swap platform; and

a receiving part, which is connected with the base part and can move relative to it, and is arranged to form self-locking with the base part in the loaded state and/or the unloaded state, the receiving part is in the Contact with the vehicle in the load-bearing state to carry its weight.

In the vehicle carrying assembly according to the present invention, optionally, the carrying device includes a power component, which is configured to provide power to make the receiving part move in place relative to the base to form a self-locking .

In the vehicle carrying assembly according to the present invention, optionally, the power component is an electric motor provided in the base.

In the vehicle carrying assembly according to the present invention, optionally, the receiving portion is arranged to form a first angle with the base portion in the unloaded state, and rotate relative to the base portion in a horizontal plane in the loaded state after the second angle; or

The receiving portion is arranged to form a third angle with the base portion in the unloaded state, and is in the loaded state after being rotated by a fourth angle relative to the base portion in a vertical plane.

In the vehicle carrying assembly according to the present invention, optionally, the base is installed vertically on the power exchange platform, and the first angle, the second angle, the third angle and /or the fourth angle is 90 degrees.

In the vehicle carrying assembly according to the present invention, optionally, the base portion is configured in a column shape, and the receiving portion is configured in a rod shape.

Secondly, according to a second aspect of the present invention, there is provided a carrying device configured as a carrying device in a vehicle carrying assembly as described in any one of the above.

In addition, according to a third aspect of the present invention, it provides a power exchange platform on which at least one set of vehicle bearing assemblies as described in any of the above is provided.

In the power exchange platform according to the present invention, optionally, the vehicle bearing assembly includes:

At least two of the carrying devices arranged on one side of the power exchange platform, wherein the receiving part of each carrying device is moved into position relative to the base in a horizontal plane to form self-locking; and

The at least two carrying devices arranged on the other side of the power exchange platform, wherein the receiving part of each carrying device moves in place relative to the base in a vertical plane to form self-locking.

In the power exchange platform according to the present invention, optionally, the power exchange platform further includes a front wheel lifting device and a rear wheel lifting device for lifting or lowering the vehicle, and the power exchange platform is arranged on the power exchange platform. At least two of the carrying devices on the other side of the , are arranged adjacent to the front wheel lifting device and the rear wheel lifting device, respectively.

In addition, according to the fourth aspect of the present invention, there is also provided a vehicle battery swap operation method, comprising the steps of:

A. Install a vehicle load bearing assembly as described in any of the above on the battery swap platform; and

B. The vehicle carrying assembly is used to carry the vehicle during power swapping of the vehicle on the power swap platform.

In the vehicle battery swap operation method according to the present invention, optionally, the step B includes:

Park the vehicle on the power exchange platform and lift it to a predetermined position;

switching the vehicle load-bearing assembly from an unloaded state to a loaded state;

placing the vehicle on the vehicle carrying assembly from the predetermined position for carrying;

exchanging the power of the vehicle, and lifting it to the set position after the power exchange is completed;

causing the vehicle load bearing assembly to switch from a loaded state to an unloaded state; and

Lower the vehicle onto the battery swap platform and drive away from the battery swap platform.

In the vehicle battery swap operation method according to the present invention, optionally, the predetermined position and the set position are the same position.

From the following detailed description in conjunction with the accompanying drawings, the principles, features, characteristics, advantages, etc. of the technical solutions according to the present invention will be clearly understood. For example, it will be understood that, compared with the prior art, using the technical solution provided by the present invention does not require a leveling operation when performing a power exchange operation on a vehicle, so that it is unnecessary to provide a complex screw leveling mechanism and control system, etc., and can shorten the entire power exchange time, improve power exchange efficiency and power exchange success rate, which will be very helpful to reduce costs, save the internal equipment space of the charging and replacing system, and bring better replacement for users. Electric experience.

Description of drawings

The technical solutions of the present utility model will be described in further detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are only designed for the purpose of explanation, and are only intended to conceptually illustrate the structure described herein. , rather than necessarily drawn to scale.

FIG. 1 is a schematic three-dimensional structural diagram of an example of a carrying device in an unloaded state in an embodiment of a vehicle carrying assembly according to the present invention.

FIG. 2 is a schematic three-dimensional structural diagram of the example of the carrying device shown in FIG. 1 in a carrying state.

FIG. 3 is a perspective structural schematic diagram of another example of a carrying device in an unloaded state in the embodiment of the vehicle carrying assembly according to the present invention.

FIG. 4 is a schematic three-dimensional structural diagram of the example of the carrying device shown in FIG. 3 in a carrying state.

Fig. 5 is a schematic three-dimensional structural diagram of an embodiment of a vehicle carrying assembly according to the present invention arranged on a power exchange platform and in an unloaded state.

FIG. 6 is a schematic top view of the embodiment of the vehicle carrying assembly shown in FIG. 5 arranged on a power exchange platform and in an unloaded state.

FIG. 7 is a schematic three-dimensional structural diagram of the embodiment of the vehicle carrying assembly shown in FIG. 5 in a carrying state, wherein the carried vehicle is also shown.

FIG. 8 is a schematic top view of the embodiment of the vehicle carrying assembly shown in FIG. 7 in a carrying state and carrying a vehicle.

FIG. 9 is a schematic flowchart of an embodiment of a vehicle battery swap operation method according to the present invention.

Detailed ways

First of all, it should be noted that the structural composition, steps, features and advantages of the vehicle carrying assembly, carrying device, power exchange platform and vehicle power exchange operation method of the present invention will be specifically described below by way of example, but all descriptions They are only used for illustration and should not be construed as forming any limitation to the present invention.

As used herein, the technical term "battery" includes, but is not limited to, batteries, battery packs, battery packs, etc. used to power the vehicle, and the technical term "vehicle load" refers to the weight of the vehicle itself and the weight that may be loaded on the vehicle at this time. the weight of the contents and/or occupants, the technical term "connection" means the direct connection and/or indirect connection of one part to another part, the technical terms "upper", "lower", "right", "left" "," "front", "rear", "vertical", "horizontal" and their derivatives, etc. shall be associated with the orientation in the drawings, and unless explicitly stated, the present invention may take various alternative orientations.

In addition, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the drawings, the present invention still allows these technical features ( or its equivalents) continue to carry out any combination or deletion, so it should be considered that these more embodiments according to the present invention are also within the scope of the description herein. Additionally, to simplify the drawings, the same or similar parts and features may be labeled in only one or several places in the same drawing.

First of all, please refer to FIG. 1 to FIG. 4 , in which the basic structural composition of two kinds of carrying devices in an embodiment of the vehicle carrying assembly according to the present invention and their respective two kinds of work are exemplarily provided in these figures. state (that is, the no-load state that does not need to be carried and the loaded state that needs to be carried), the vehicle carrying assembly can be composed of these two carrying devices, and they can be installed on or near the power-changing platform ( For example, on the field work floor, adjacent installations or equipment, etc.), it can not only be used to carry the vehicle during the vehicle power exchange, but also does not require any leveling operations.

Specifically, in this example shown in FIGS. 1 and 2 , the carrying device 1 includes a base 11 , a receiving part 12 and a power component (not shown), which is schematically shown in FIG. 1 . 1 is in an unloaded state, and in FIG. 2 the carrying device 1 is shown schematically in a loaded state.

As for the base 11 , it is mounted on the power exchange platform 2 such as shown in FIGS. 3 and 4 to provide support for the entire carrier 1 . For example, the base 11 may be vertically mounted on the power exchange platform 2 . In an optional situation, the base 11 can be configured as a column (eg, a circular column, a square column, etc.), or it can be configured into any other suitable shape to better suit various application requirements.

The receiving portion 12 is connected with the above-mentioned base portion 11 , for example, the two can be connected together by means of hinges, welding and the like. The receiving portion 12 is configured to be in contact with the vehicle to carry its weight during power exchange, and it can be configured into a rod shape or any other suitable shape according to the specific application.

In the carrying device 1, the power component is provided to provide power, so that the above-mentioned receiving portion 12 can move relative to the base portion 11 in the horizontal plane, and is formed after the movement is in place (ie, reaches the desired position). Self-locking. By performing the above movement, the state switching of the carrying device 1 between the unloaded state and the carrying state can be realized, and because of the above-mentioned self-locking function, the undesired shaking of the receiving part 12 can be avoided when the vehicle is carried. question.

By way of example, the power component described above may employ an electric motor, and the base 11 may be configured with an internal cavity in order to place the electric motor therein, so that the carrying device may have a very compact structure. In addition, since the carrying device 1 does not need to carry the vehicle load during the switching between the no-load state and the carrying state, it can be driven by a motor with a smaller power, which is also beneficial to reduce the space occupied by the motor. Of course, in some applications, other components, units or devices may also be used for the above-mentioned power components, for example, a speed-increasing mechanism, a deceleration mechanism, etc. may be provided.

In the above examples, the self-locking function of the carrying device 1 in the carrying state can be provided by a power component such as a motor, that is, the relative position between the base 11 and the receiving part 12 can be locked in the carrying state. However, it should be noted that the present invention allows many other ways to realize such self-locking function.

For example, it can be realized by means of electromagnetic lock. That is, the base part 11 and the receiving part 12 can be provided with electromagnetic parts matching each other, so that when the base part 11 and the receiving part 12 are in place in the loaded state, the electromagnetic attraction force can be formed by energizing these matching electromagnetic parts to make them are engaged together, thereby locking the relative position between the base 11 and the receptacle 12 . When it is necessary to release the above locking, the electromagnetic attraction force for engaging the above-mentioned electromagnetic components can be eliminated by stopping the power supply to the above-mentioned electromagnetic components, thereby enabling the receiving part 12 to move relative to the base part 11 again.

In addition, a mechanical structure such as a concave-convex matching structure can also be used for implementation. Specifically, for example, the base portion 11 and the receiving portion 12 may be provided with concave portions or convex portions that match each other, respectively, so that when the base portion 11 and the receiving portion 12 are seated in a loaded state, the above-mentioned concave portions and convex portions can be engaged by to lock the relative position between the base part 11 and the receiving part 12 . When it is necessary to release the above locking, the above-mentioned concave part and convex part can be disengaged, so that the receiving part 12 can be moved relative to the base part 11 again.

In addition, it should be noted that in the present invention, it is also allowed to use many possible methods such as electromagnetic attraction force, mechanical structure and so on discussed above to realize the relative position locking of the base portion 11 and the receiving portion 12 of the carrying device 1 in an unloaded state. , which will help to avoid problems such as undesired interference and collision between the vehicle bearing assembly and surrounding objects or people in an unloaded state, so that the vehicle bearing assembly can be used more safely and reliably.

As shown in FIG. 1 , when the carrying device 1 is in an unloaded state, an angle (eg, 90 degrees or other suitable values) can be formed between the receiving portion 12 and the base portion 11 , and they are not under load at this time. When the power is provided by a power component such as a motor, the receiving part 12 can be rotated relative to the base part 11 by an angle (such as 90 degrees or other suitable values) in the horizontal plane to reach the desired position, the carrying device 1 is in the load-bearing state shown in FIG. 2 at this position, that is, the load-bearing device 1 can be used to carry the vehicle load at this time.

Next, please refer to FIGS. 3 and 4 , which illustrate another carrier device that can be used in the vehicle carrier assembly according to the present invention, which will be described in detail below.

In this example, the carrying device 1 comprises a base 11, a receiving part 12 and a power component (not shown), which is schematically shown in FIG. 3 in an unloaded state, and in FIG. 4 schematically shows the situation in which the carrying device 1 is in the carrying state. Unless otherwise specified herein, the corresponding descriptions regarding the structure, composition, mounting arrangement, function, etc. of the carrier device shown in FIGS. 1 and 2 apply equally to the carrier device shown in FIGS. 3 and 4 . .

The difference from the aforementioned carrying device is that for the carrying device 1 shown in Figures 3 and 4, in the unloaded state, an angle (such as 90 degrees or other) can be formed between the receiving part 12 and the base part 11. suitable value); when the power is provided by a power component such as a motor, etc., the receiving part 12 can be rotated relative to the base part 11 by an angle (such as 90 degrees or other suitable values) in the vertical plane to make it reach the desired value , that is, the carrying device 1 is in the carrying state shown in FIG. 4 at this time, so that the carrying device 1 can be used to carry the vehicle load.

The above only describes two kinds of carrying devices by way of exemplary example, any one of the carrying devices or both of them can be used to form the vehicle carrying assembly according to the present invention.

Specifically, in practical applications, the vehicle carrying assembly may include two or more such carrying devices, which can be installed and arranged at any suitable position on the power exchange platform, and can be installed so that these When the bearing devices are in the bearing state, the level difference between them is controlled within a preset range (the specific difference accuracy requirements can be set according to the actual application), so as to ensure that the When the battery-swapped vehicle is placed on these carriers of the vehicle-carrying assembly, it can fully meet the leveling standard required for the battery-changing operation using, for example, the locking and unlocking mechanism, so that it is not necessary to perform the battery-changing operation as in the prior art. Multiple leveling operations must be performed to ensure the accuracy of battery removal and installation. In this way, not only the equipment cost of configuring the motor-screw transmission mechanism, control program, etc. can be saved, but also the power exchange time can be significantly reduced due to the cancellation of the leveling operation process, the overall operation can be simplified, the use and maintenance costs can be reduced, and the exchange rate can be improved. Electrical efficiency and success rate.

In addition, it should be noted that, since the present invention adopts such innovative structural improvement designs as above, there is no need to perform leveling operation, which will also allow drivers and passengers to directly replace the battery without getting off the vehicle, thereby realizing The fully automatic power exchange operation of "people not leaving the car". In contrast, in the existing battery swapping system, if the driver and occupant stay in the vehicle during the battery swapping operation, their activities in the vehicle may have an adverse or even serious impact on the battery disassembly and assembly operation. , so it is necessary to "separate the human and the vehicle" during the power exchange operation, and the fully automatic power exchange operation cannot be achieved at all. By adopting the technical solution of the utility model, it is not necessary to perform a leveling operation on the vehicle before the power-changing operation, and the driver and passengers do not need to leave the vehicle during the power-changing operation, which will greatly optimize the time-consuming of the power-changing operation and reduce the waiting time of users. time, and improve their battery swapping experience.

It can be understood that, compared with the prior art, the adoption of the vehicle carrying assembly according to the present invention has these very obvious technical advantages as described above. The above-mentioned level difference/error exists only once in the machining accuracy and initial assembly of these bearing devices. Strictly control the machining process and assembly method to ensure the consistency of the leveling of these bearing devices on the bearing contact surface of the vehicle. Of course, during use, it is possible to perform maintenance, replacement and other operations on some bearing devices in the vehicle bearing assembly. At this time, the level difference/error between these bearing devices can also be adjusted and controlled, so as to be able to This allows it to continue to meet the required levelness standards, so that the leveling operations that are common and necessary in the prior art are still not required.

In addition, it should be noted that, without departing from the gist of the present invention, for the carrying device in the vehicle carrying assembly of the present invention, its specific structural composition, structural form, material, number of installations, etc. are all allowed According to the design idea of the present invention, flexible design, change and adjustment are carried out so as to fully meet various possible practical application requirements.

According to another technical solution of the present invention, there is also provided a carrying device for a vehicle carrying assembly, such a carrying device will be manufactured separately and configured as a vehicle designed and provided according to the present invention as described above The bearing device in the bearing assembly is used to form the vehicle bearing assembly of the present invention.

In view of the fact that the vehicle carrying assembly and the carrying device according to the present invention have the above-mentioned technical advantages over the prior art, they are very suitable for applying them to a charging and replacing system (for example, a device that can perform operations such as power swapping, charging, etc.) Various types of charging stations, such as fixed charging stations, mobile charging stations, etc.), in order to overcome the disadvantages and deficiencies existing in the prior art, including those described above. According to a technical solution of the present invention, it provides a charging and exchanging system, wherein one or more groups of vehicle bearing assemblies designed and provided according to the present invention can be provided.

As an example, two or more carrying devices 1 of the type shown in Figures 1 and 2 can be installed on one side of the power exchange platform 2 (the left side in Figures 5 to 8 ), when in the In the no-load state, these carrying devices 1 can be arranged in the directions shown in FIGS. 5 and 6 without bearing load, that is, the receiving part 12 of the carrying device 1 can be kept in the direction of the vehicle body/longitudinal direction of the power exchange platform 2. parallel. When it needs to be in a bearing state, power can be provided by a power component such as a motor, etc., so that the receiving part 12 in the bearing device 1 rotates an angle (such as 90 degrees or other suitable values) relative to the base 11 in the horizontal plane. , reaches the desired position as shown in Figures 7 and 8 and forms a self-lock for subsequent use to carry the load of the vehicle 5 to be swapped.

At the same time, two or more carrying devices 1 of the type shown in FIGS. 3 and 4 can be installed on the other side of the power exchange platform 2 (right side in FIGS. 5 to 8 ), when in the empty Under the load state, these carrying devices 1 can be arranged in the directions shown in Figures 5 and 6 without bearing the load. When it is required to be in a bearing state, power can be provided by a power component such as a motor, etc., so that the receiving part 12 in the bearing device 1 rotates an angle (such as 90 degrees or other suitable values) relative to the base 11 in the vertical plane ), reach the desired position as shown in Figures 7 and 8 and form self-locking, so as to be subsequently used to carry the load of the vehicle 5 to be replaced.

As shown in FIGS. 5 to 8 , in an optional situation, a front wheel lifting device 3 and a rear wheel lifting device 4 can be provided on the power exchange platform 2 to carry the vehicle 5 parked on the power exchange platform. By lifting or lowering, the vehicle 5 can be moved up and down relative to the power exchange platform. At this time, the carrying device 1 of the type shown in FIG. 3 and FIG. 4 can be arranged in the vicinity of the above-mentioned front wheel lifting device 3 and rear wheel lifting device 4 respectively, which can not only make the overall structure layout more compact , and facilitates a better distribution and application of the load-bearing forces to suitable locations, for example, on the vehicle chassis.

As an aspect that is obviously superior to the prior art, the present invention also provides a vehicle battery swap operation method. As an example, as shown in FIG. 9 , the vehicle battery swap operation method of the present invention may include the following steps:

First, in step S11, the vehicle bearing assembly designed and provided according to the present utility model is installed on the power exchange platform;

Then, in step S12, the vehicle-carrying assembly is used to carry the vehicle during the battery-swapping of the vehicle on the power-swapping platform.

In an optional situation, the specific power exchange process in the above step S12 can be implemented according to the following steps:

Drive in and park the vehicle on the power exchange platform with the vehicle carrier assembly in an unloaded state, and then lift the vehicle to a predetermined position, that is, when the vehicle is in the predetermined position, it will not affect the connection The working state switch of the vehicle-bearing assembly to be carried out in the next step;

To switch the vehicle carrying assembly (ie, the carrying devices contained therein) from the unloaded state to the carrying state, as an example, for example, two devices arranged on the left side of the power exchange platform 2 as shown in Figs. Each carrying device 1 is in place after rotating in the horizontal plane, and the receiving parts 12 in the two carrying devices 1 arranged on the right side of the power exchange platform 2 as shown in FIG. 5 to FIG. 8 are opposite in the vertical plane The base 11 is rotated upwards into position, that is, the respective receiving parts 12 of the two carrying devices 1 on the left side will carry the vehicle load along its transverse direction, and the respective receiving parts 12 of the two carrying devices 1 on the right side will be along the horizontal direction. its longitudinal direction to carry the vehicle load;

lowering the vehicle and placing it from the above-mentioned predetermined position onto the vehicle load-carrying assembly through which the vehicle load is carried, without any levelling operation being required before or after this;

Replacing the battery of the vehicle, such as removing the battery (such as a depleted battery, a faulty battery, etc.) on the vehicle through the unlocking mechanism, and then installing the charged battery on the vehicle;

After the power exchange operation is completed, the vehicle is lifted to a set position, and the set position and the predetermined position can be the same position or different positions, and the utility model allows selection and setting of this according to the actual application situation;

Then, switch the vehicle carrying assembly (ie the carrying means it contains) from the carrying state to the unloading state;

Subsequently, the vehicle is lowered and placed on the battery swap platform, which is then driven off the battery swap platform.

It can be understood that, since the composition, structure, installation arrangement, use, function and other technical contents of the vehicle bearing assembly and its bearing device have been described in great detail in the foregoing, you can directly refer to the specific description of the corresponding part above. , the description will not be repeated in the method of the present invention.

The above only illustrates the vehicle carrying assembly, the carrying device, the power exchange platform and the vehicle power exchange operation method according to the present invention by way of examples. With regard to the limitations of the present invention, those skilled in the art can also make various modifications and improvements without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should belong to the scope of the present invention and be defined by the various claims of the present invention.

Claims (12)

1. Vehicle carrying assembly of the kind 1, , characterized in that the vehicle carrying assembly is used for swapping electric power platform and has an idle state, and is used for carrying the carrying state of the vehicle that is located on the platform during swapping electric power, and it includes at least two carrying devices, they are arranged that in the carrying state, the difference of levelness between each other is in the preset scope, so that the vehicle that carries need not leveling when swapping electric power.
2. 2. The vehicle load bearing assembly of claim 1, wherein said load bearing device comprises:

   a base mounted on or near the battery swapping platform; and

   a bolster connected to and movable relative to the base and arranged to form a self-locking with the base in the loaded state and/or the unloaded state, the bolster being in contact with the vehicle to carry its weight in the loaded state.
3. 3. The vehicle load bearing assembly of claim 2, wherein said load bearing device comprises a powered component configured to provide power to cause said bolster to self-lock upon movement into position relative to said base.
4. 4. The vehicle load bearing assembly of claim 3, wherein said power component is an electric motor disposed within said base.
5. 5. The vehicle load bearing assembly of claim 2, wherein said bolster is arranged to form an angle with said base in said unloaded state and in said loaded state after being rotated a second angle in a horizontal plane relative to said base, or

   The bearing part is arranged to form a third angle with the base part in the no-load state and is in the bearing state after rotating relative to the base part by a fourth angle in a vertical plane.
6. 6. The vehicle load bearing assembly of claim 5, wherein said base is mounted vertically on said swapping platform, and said , second, third, and/or fourth angles are 90 degrees.
7. 7. The vehicle load bearing assembly of any of claims 2-6, wherein the base portion is configured to be cylindrical and the bolster portion is configured to be rod-shaped.
8. A carrier device of , wherein the carrier device is configured as a carrier device in a vehicle carrier assembly of any of claims 1-7 through .
9. 9, kinds of trade electric platform, characterized in that, be provided with at least group's the vehicle load-carrying component of claim 1 on trading electric platform.
10. 10, kinds of battery replacing platforms, characterized in that, there are at least groups of vehicle load bearing assemblies as claimed in any of claims 2-7 on the battery replacing platform.
11. 11. The swapping platform of claim 10, wherein the vehicle carrying assembly comprises:

    at least two of the carrying devices arranged on the side of the power conversion platform, wherein the bearing part of each carrying device forms self-locking after moving in position relative to the base part in a horizontal plane

    At least two of the carriers arranged on the other sides of the swapping platform, wherein the receptacle of each carrier forms a self-locking after moving into position relative to the base in a vertical plane.
12. 12. The swapping platform of claim 11, further comprising a front wheel lifting device and a rear wheel lifting device for lifting or lowering a vehicle, the at least two carrying devices arranged on the other side of the swapping platform being arranged adjacent to the front wheel lifting device and the rear wheel lifting device, respectively.

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