Vehicle bottom battery replacing method and battery replacing station

Abstract

The invention relates to a vehicle bottom battery replacing method and a battery replacing station. The vehicle bottom battery replacing method comprises the steps that a containing plate used for containing a battery is provided, a first adjusting mechanism arranged on the first side of the containing plate is provided, a second adjusting mechanism arranged on the second side of the containing plate is provided, and the first adjusting mechanism and the second adjusting mechanism are connected with the containing plate through movable parts; the first adjusting mechanism and the second adjusting mechanism can move in the first direction and the height direction. According to the vehicle bottom battery replacing method capable of being applied to the battery replacing station, the height of a battery replacing trolley is reduced, meanwhile, a first adjusting mechanism and / or a second adjusting mechanism are / is driven to move, and a placing plate is driven to move in the first direction or rotate around the second direction; therefore, the mutual position between the battery on the placing plate and a battery compartment at the bottom of the vehicle is adjusted, so that the battery is aligned with the battery compartment.

Description

Technical Field

[0001] The present invention relates to the field of mechanical automation, and in particular to a vehicle bottom battery replacement method and a battery replacement station. Background Art

[0002] As oil resources are increasingly depleted, the demand for new energy vehicles is increasing. In current pure electric vehicles, when the vehicle's power is exhausted, the main methods of replenishing power are charging or battery replacement. Charging is to charge the battery in the pure electric vehicle to replenish the stored power of the vehicle. Battery replacement is to replace the energy storage battery in the pure electric vehicle as a whole, remove the battery with lower power in the pure electric vehicle, and replace it with a fully charged battery to ensure that the pure electric vehicle can continue to drive.

[0003] Among the pure electric vehicles that currently use the battery swapping technology route, there are also many ways to swap batteries, which are mainly divided into two types. One is to swap batteries from the top of the frame, which is often used in the commercial vehicle field. When battery swapping is needed, the crane in the battery swapping station will lift the battery with lower power in the pure electric commercial vehicle from the frame, and then lift a fully charged battery to the pure electric commercial vehicle. The other is to swap batteries from the bottom of the frame, which is often used in the pure electric passenger vehicle field. When battery swapping is needed, the battery swapping trolley enters the bottom of the pure electric passenger vehicle, and then the battery swapping trolley rises, and the battery in the pure electric passenger vehicle falls on the battery swapping trolley, and then the battery swapping trolley falls, and the battery swapping trolley carries the battery away from the bottom of the pure electric passenger vehicle; similarly, the battery swapping trolley carries another fully charged battery, and as the battery swapping trolley rises, the fully charged battery is installed in the pure electric passenger vehicle.

[0004] However, there are two major drawbacks in the battery replacement method from the bottom of the frame:

[0005] First, the battery swapping carts for battery swapping are usually stacked in a human-like manner, with the mechanisms for driving the battery swapping cart to rise and fall, the mechanisms for accommodating the batteries, and other mechanisms stacked one by one. As a result, the highest point of the battery swapping cart is relatively high above the ground, usually higher than the ground clearance of the pure electric vehicle frame. Therefore, trenches are usually required in existing battery swapping stations for pure electric vehicles. When a pure electric vehicle swaps batteries, the battery swapping cart travels in the trench. Due to the setting of the trench, the construction location of the battery swapping station is limited, and there needs to be sufficient space to dig the trench at the construction site.

[0006] Secondly, when a pure electric vehicle needs to be replaced, it needs to be parked in a battery replacement station similar to a parking space. When the pure electric vehicle is parked, it is difficult to park the pure electric vehicle in an ideal position. For example, if the parking position of the pure electric vehicle is too far to the left of the battery replacement station, the length direction of the pure electric vehicle is tilted with the length direction of the battery replacement station. All these will cause the battery replacement vehicle to be unable to smoothly align with the battery compartment at the bottom of the pure electric vehicle, thus failing to complete the battery replacement.

[0007] Therefore, there is an urgent need for a solution that can lower the height of the battery swap cart without digging trenches, while ensuring that the battery swap cart can be accurately aligned with the battery compartment. Summary of the invention

[0008] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a vehicle bottom battery replacement method and battery replacement station, which can significantly reduce the height of the battery replacement vehicle while ensuring that the battery replacement vehicle can be accurately aligned with the battery compartment.

[0009] The purpose of the present invention is achieved through the following technical solutions:

[0010] A method for replacing battery at the bottom of a vehicle, the method comprising:

[0011] Provide a placement plate for placing batteries,

[0012] A first adjustment mechanism is provided on the first side of the placement plate, and a second adjustment mechanism is provided on the second side of the placement plate, the first side is set to be opposite to the second side, the first adjustment mechanism and the second adjustment mechanism are both connected to the placement plate through a movable member, and the first adjustment mechanism and the second adjustment mechanism can both move in a first direction and a height direction;

[0013] The first adjusting mechanism and / or the second adjusting mechanism are set to move, so as to drive the connection point between the movable member and the placement plate to move along the first direction or the height direction, thereby driving the placement plate to move along the first direction or along the height direction or to rotate around the first axis, and the axial direction of the first axis is defined to be the same as the second direction, and the first direction, the second direction and the height direction are defined to be perpendicular to each other;

[0014] The placement plate is set to move along the first direction or rotate around the second direction, thereby adjusting the relative position between the battery on the placement plate and the battery compartment at the bottom of the vehicle, so that the battery is aligned with the battery compartment;

[0015] After the battery is aligned with the battery compartment, the placement plate moves along the height direction to install the battery into the battery compartment.

[0016] Furthermore, a third adjustment mechanism arranged on the first side and a fourth adjustment mechanism arranged on the second side are provided; the third adjustment mechanism and the fourth adjustment mechanism can move synchronously along the second direction, driving the placement plate to move along the second direction, thereby adjusting the relative position between the battery and the battery compartment.

[0017] Furthermore, the placement plate is driven to rotate around a second axis to adjust the relative position between the battery and the battery compartment, and the axial direction of the second axis is the same as the height direction.

[0018] Furthermore, the placement plate is driven to rotate around a third axis to adjust the relative position between the battery and the battery compartment, and the axial direction of the third axis is the same as the first direction.

[0019] Furthermore, the placement plate is configured to consist of a placement bottom plate and a placement top plate rotatably connected to the placement bottom plate, the placement bottom plate and the placement top plate rotate around the second axis, and a rotation adjustment mechanism is configured to drive the placement top plate to rotate.

[0020] Furthermore, it is defined that the first adjustment mechanism and the second adjustment mechanism together constitute an adjustment component, the number of the adjustment components is set to two, and the adjustment components are arranged in sequence along the second direction; the relative position of the two adjustment components in the first direction is driven to change, thereby driving the placement plate to rotate around the second axis.

[0021] Furthermore, the first adjustment mechanism and the second adjustment mechanism are defined to together constitute an adjustment component, the number of the adjustment components is set to two, and the adjustment components are arranged in sequence along the second direction; the adjustment component is driven to move along the height direction, and the relative position of each adjustment component in the height direction is changed, thereby driving the placement plate to rotate around the third axis.

[0022] Furthermore, a first rotating shaft is set, and the first adjusting mechanism and the second adjusting mechanism are set with the same structure, the first adjusting mechanism includes an adjusting plate, the adjusting plate rotates around the first rotating shaft, the axial direction of the first rotating shaft is the same as the first direction, and the connecting direction of the first adjusting mechanism and the second adjusting mechanism is the same as the first direction; the adjusting plate is movably connected to the placement plate through the movable part, the number of the movable parts is at least two, and the connection points between the movable part and the adjustment plate are distributed on both sides of the first rotating shaft; the first rotating shaft is rotated to drive the adjustment plate to rotate around the third axis, thereby driving the placement plate to rotate around the third axis.

[0023] Furthermore, the first adjustment mechanism and the second adjustment mechanism are arranged to cooperate with the placement plate to form a concave shape, the placement plate is arranged to be located at the bottom of the concave shape, and the battery is arranged to be located in a recessed area of ​​the concave shape.

[0024] A battery swap station adopts any of the above-mentioned vehicle bottom battery swap methods.

[0025] Compared with the prior art, the beneficial effect of the present invention is that: the present invention proposes a method for battery replacement at the bottom of a vehicle that can be applied in a battery replacement station, and by setting a first adjustment mechanism and a second adjustment mechanism for controlling the movement of the placement plate on both sides of the placement plate, the height of the highest point of the battery replacement vehicle from the ground is greatly reduced. At the same time, by driving the first adjustment mechanism and / or the second adjustment mechanism to move, the placement plate can be driven to move along the first direction or rotate around the second direction, thereby adjusting the relative position between the battery on the placement plate and the battery compartment at the bottom of the pure electric vehicle, so that the battery can be aligned with the battery compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a conceptual diagram of the vehicle bottom battery replacement method of the present invention;

[0027] Figure 2 is a second stereoscopic schematic diagram of the battery-swapping vehicle in the first embodiment of the present invention;

[0028] Figure 3 yes Figure 2 The enlarged schematic diagram of the middle A part;

[0029] Figure 4 is a three-dimensional schematic diagram of a battery-swapping vehicle in the second embodiment of the present invention;

[0030] Figure 5 yes Figure 4 Enlarged schematic diagram of part B in the middle.

[0031] In the figure:

[0032] 1-placing plate; 1a-placing bottom plate; 1b-placing top plate; 1c-placing plate body; 1d-adjusting plate; 2-first rotating shaft; 3-adjusting plate; 4-scissor arm; 5-first bottom plate; 6-chain; 7-first lifting platform; 8-second lifting platform; 9-third lifting platform; 10-fourth lifting platform; 11-connecting plate; 12-supporting plate; 13-second rotating shaft; 14-driving motor. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] The present invention discloses a battery swap station and a method for battery swapping at the bottom of a vehicle, wherein the battery swap station of the present invention adopts the method for battery swapping at the bottom of a vehicle of the present invention. In the battery swap station of the present invention, batteries can be swapped for many types of pure electric vehicles, such as pure electric heavy trucks, pure electric buses, and pure electric cars. The following takes battery swapping for a pure electric heavy truck as an example, and specifically takes battery swapping from the bottom of a pure electric heavy truck as an example. In the following, the first direction, the second direction, and the height direction are involved. For the sake of convenience, the first direction is defined as the X-axis direction, the second direction is defined as the Y-axis direction, and the height direction is defined as the Z-axis direction.

[0037] The vehicle bottom battery replacement method of the present invention is described in detail below:

[0038] like Figure 1 As shown, the vehicle bottom battery replacement method of the present invention includes: providing a placement plate 1 for placing batteries in the battery replacement station, providing a first adjustment mechanism arranged on the first side of the placement plate 1 in the battery replacement station, and providing a second adjustment mechanism arranged on the second side of the placement plate 1 in the battery replacement station. The first adjustment mechanism, the first adjustment mechanism and the placement plate 1 constitute a battery replacement vehicle for battery replacement. The first side and the second side are arranged opposite to each other, and the first adjustment mechanism and the second adjustment mechanism are both connected to the placement plate 1 through movable parts. The movable part can be a chain 6, a universal joint, or a rope. The first adjustment mechanism and the second adjustment mechanism are both movable in the first direction and the height direction, that is, the first adjustment mechanism and the second adjustment mechanism are both movable in the X-axis direction and the Z-axis direction. Figure 1In the figure, the Z-axis direction is perpendicular to the plane of the picture. In this paragraph, the focus of the vehicle bottom battery replacement method is on the form in which the battery replacement vehicle is provided.

[0039] like Figure 1 As shown, with respect to the structure of the battery-swapping vehicle provided in the previous paragraph, the vehicle bottom battery-swapping method of the present invention also includes: setting the first adjustment mechanism and / or the second adjustment mechanism to move, which can drive the connection point between the movable part and the placement plate 1 to move along the first direction or the height direction, thereby driving the placement plate 1 to move along the first direction or along the height direction or to rotate around the first axis. The axial direction of the first axis is defined to be the same as the second direction, and the first direction, the second direction and the height direction are defined to be perpendicular to each other. That is, when the first adjustment mechanism and / or the second adjustment mechanism moves along the X-axis direction or the Z-axis direction, the connection point between the movable part and the placement plate 1 can be driven to move along the X-axis direction or the Z-axis direction, thereby driving the placement plate 1 to move along the X-axis direction or along the Z-axis direction or to rotate around the Y-axis.

[0040] Among the three kinds of motions of the placement plate 1, namely, the motions of the placement plate 1 moving along the X-axis direction, the motions of the placement plate 1 moving along the Z-axis direction, or the rotation around the Y-axis, the motions of the placement plate 1 are mainly divided into two categories. The first kind of motion enables the battery on the placement plate 1 to be aligned with the battery compartment at the bottom of the pure electric heavy truck, and the second kind of motion enables the battery on the placement plate 1 to be installed into the battery compartment at the bottom of the pure electric heavy truck or to catch the low-power battery dropped from the battery compartment.

[0041] The first type of actions are as follows: Figure 1 As shown, the present invention sets the placement plate 1 to move along the first direction or rotate around the second direction, thereby adjusting the relative position between the battery on the placement plate 1 and the battery compartment at the bottom of the vehicle, so that the battery is aligned with the battery compartment, specifically:

[0042] The situation where the placement plate 1 moves along the first direction is that when the pure electric heavy truck enters the battery swap station, the pure electric heavy truck is parked at the battery swap station. When the pure electric heavy truck stops steadily at the battery swap station, if the battery compartment deviates from the placement plate 1 in the X-axis direction, the first adjustment mechanism and the second adjustment mechanism can be driven to move synchronously along the X-axis direction, driving the placement plate 1 to adjust the position with the battery compartment in the X-axis direction. It should be noted that before the pure electric heavy truck enters the battery swap station, the battery swap vehicle is far away from the ideal battery swap station setting. Usually, the direction in which the pure electric heavy truck enters the battery swap station is perpendicular to the X-axis. When the pure electric heavy truck stops steadily at the battery swap station, the placement plate 1 moves along the X-axis direction under the joint drive of the first adjustment mechanism and the second adjustment mechanism, and in the X-axis direction, the placement plate 1 is aligned with the battery compartment. Since the first adjustment mechanism and the second adjustment mechanism are respectively arranged on both sides of the placement plate 1, the ground clearance of the highest point of the battery swapping vehicle is greatly reduced. The battery swapping vehicle can pass through the bottom of the pure electric heavy truck on flat ground, so that the placement plate 1 used to place the battery can enter under the chassis of the pure electric heavy truck without digging a trench.

[0043] The case where the placement plate 1 rotates around the second direction is when the placement plate 1 is already located below the battery compartment, but due to daily wear of the pure electric heavy truck, it is inevitable that the plane where the battery compartment is located is inclined with the ground, and the intersection line between the plane where the battery compartment is located and the plane where the ground is located is set along the Y axis. At this time, in order to adjust the battery located on the placement plate 1, the first adjustment mechanism and / or the second adjustment mechanism are driven to move along the Z axis, and the movement pace of the first adjustment mechanism and the second adjustment mechanism is inconsistent, so that the relative position of the first adjustment mechanism and the second adjustment mechanism in the Z axis direction changes, and then the placement plate 1 rotates around the Y axis, so that the battery rotates to an angle that can be aligned with the battery compartment.

[0044] The second type of actions are as follows: Figure 1 As shown, after the battery is aligned with the battery compartment, the first adjustment mechanism and the second adjustment mechanism are driven to rise synchronously along the Z axis, driving the placement plate 1 to move along the height direction, that is, driving the placement plate 1 to rise along the Z axis to install the battery into the battery compartment.

[0045] Therefore, the present invention proposes a method for battery replacement at the bottom of a vehicle that can be used in a battery replacement station. By setting the first adjustment mechanism and the second adjustment mechanism that control the movement of the placement plate 1 on both sides of the placement plate, the height of the battery replacement vehicle is greatly reduced, and there is no need to dig trenches in the battery replacement station, which greatly reduces the site selection requirements of the battery replacement station. At the same time, by driving the first adjustment mechanism and / or the second adjustment mechanism to move, the placement plate 1 can be driven to move in the first direction or rotate around the second direction, thereby adjusting the relative position between the battery on the placement plate and the battery compartment at the bottom of the pure electric heavy truck, so that the battery can be aligned with the battery compartment, thereby improving the battery replacement efficiency.

[0046] The method for aligning the battery with the battery compartment mentioned in the above-mentioned vehicle bottom battery replacement method only includes two alignment methods, one is to drive the battery on the placement plate 1 to adjust in the X-axis direction, and the other is to drive the battery on the placement plate 1 to rotate around the Y-axis. However, in the actual battery replacement process at the battery swap station, the adjustment method for aligning the battery with the battery compartment is not limited to the above two adjustment methods. The following article describes in detail the other three adjustment methods, which can be used simultaneously in the battery swap station. In order to reduce the manufacturing cost of the battery swap station, these three adjustment methods may not be provided. Details:

[0047] like Figure 1As shown, the vehicle bottom battery replacement method of the present invention also includes providing a third adjustment mechanism arranged on the first side and a fourth adjustment mechanism arranged on the second side. The third adjustment mechanism and the fourth adjustment mechanism can move synchronously along the second direction, that is, both can move along the Y-axis. Drive the placement plate 1 to move along the second direction, that is, drive the placement plate 1 to move along the Y-axis. Thereby adjusting the relative position between the battery and the battery compartment on the Y-axis. Usually, a pure electric heavy truck enters the battery replacement station along the Y-axis, that is, the pure electric heavy truck moves along the Y-axis to the battery replacement station. However, since the pure electric heavy truck is parked manually, the parking position of the pure electric heavy truck will deviate from the ideal parking position on the Y-axis. Therefore, in order to align the battery located on the placement plate 1 with the battery compartment, it is necessary to move the placement plate 1 along the Y-axis or move the pure electric heavy truck along the Y-axis. The present invention provides a third adjustment mechanism and a fourth adjustment mechanism so that the placement plate 1 can move along the Y-axis, so that the battery can be aligned with the battery compartment in the Y-axis direction.

[0048] like Figure 1 As shown, the vehicle bottom battery replacement method of the present invention also includes: driving the placement plate 1 to rotate around a second axis to adjust the relative position between the battery and the battery compartment, the axial direction of the second axis is the same as the height direction, that is, the second axis is arranged along the Z axis. When the pure electric heavy truck enters the battery replacement station, the length direction of the pure electric heavy truck will inevitably be tilted with the Y axis. Therefore, a mechanism is required to drive the placement plate 1 to rotate in the XOY plane, that is, the placement plate 1 can rotate around the Z axis. The present invention drives the placement plate 1 to rotate around the Z axis, so that the placement plate 1 can be aligned with the battery compartment in the XOY plane.

[0049] like Figure 1 As shown, the vehicle bottom battery replacement method of the present invention also includes driving the placement plate 1 to rotate around a third axis to adjust the relative position between the battery and the battery compartment, and the axial direction of the third axis is the same as the first direction. That is, the placement plate 1 can be driven to rotate around the X-axis. Similarly, due to the wear of the pure electric heavy truck during use, when the pure electric heavy truck is parked at the battery replacement station, the plane where the battery compartment of the pure electric heavy truck is located is inclined to the ground, and the placement plate 1 is rotated around the Y-axis in conjunction with the change in the relative position between the first adjustment mechanism and the second adjustment mechanism in the Z-axis direction as described above. Therefore, the battery is further aligned with the battery compartment by rotating around the X-axis and / or the Y-axis. The present invention further increases the adjustment angle of the battery by arranging the placement plate 1 to rotate around the X-axis.

[0050] The following describes in detail the battery replacement process of a pure electric heavy truck entering a battery replacement station using the vehicle bottom battery replacement method of the present invention, including the following steps:

[0051] Step 1: The pure electric heavy truck enters the battery swap station and drives to the battery swap station. At this time, the battery swap cart is far away from the vehicle.

[0052] Step 2: Drive the first adjustment mechanism and the second adjustment mechanism to move along the first direction, that is, along the X-axis; drive the placement plate 1 to move in translation as a whole until the placement plate 1 is located at the bottom of the pure electric heavy truck, specifically, the placement plate 1 moves to below the battery compartment of the pure electric heavy truck.

[0053] Step 3: Drive the first adjustment mechanism and the second adjustment mechanism to move synchronously in the height direction, that is, they both move along the Z axis. The first adjustment mechanism and the second adjustment mechanism rise synchronously, driving the placement plate 1 to rise in the height direction, that is, the placement plate 1 is lifted along the Z axis as a whole.

[0054] Step 4: Control the unlocking mechanism to unlock, and the low-power battery in the pure electric heavy truck falls onto the placement plate 1.

[0055] Step five, drive the first adjusting mechanism and the second adjusting mechanism to descend synchronously in the height direction, that is, to descend synchronously along the Z axis, and drive the placement plate 1 to descend in the height direction, that is, drive the placement plate 1 to move horizontally downward along the Z axis; until the highest points of the first adjusting mechanism, the second adjusting mechanism and the battery from the ground are all lower than the highest point of the pure electric heavy-duty truck chassis from the ground.

[0056] Step six, drive the first adjustment mechanism and the second adjustment mechanism to move in the first direction, that is, along the X-axis, until the placement plate 1 completely leaves the bottom of the pure electric heavy truck, and the battery swap car moves toward the battery storage cabinet in the battery swap station.

[0057] Step seven, remove the low-power battery in the pure electric heavy truck from the placement plate 1, and then place the low-power battery in the battery storage cabinet for charging; then take out a fully charged battery from the battery storage cabinet and place it on the placement plate 1.

[0058] Step eight, drive the first adjustment mechanism and the second adjustment mechanism to move in the first direction, that is, along the X-axis; until the placement plate 1 is located at the bottom of the pure electric heavy truck again, that is, the placement plate 1 moves to the bottom of the battery compartment of the pure electric heavy truck again.

[0059] Step nine, when the battery is not aligned with the battery compartment, drive the placement plate 1 to move along at least one of the five degrees of freedom: moving along the X-axis, moving along the Y-axis, rotating around the X-axis, rotating around the Y-axis, and rotating around the Z-axis, until the battery is aligned with the battery compartment.

[0060] Step ten, drive the first adjustment mechanism and the second adjustment mechanism to move synchronously in the height direction again, that is, move along the Z axis; drive the placement plate 1 to rise in the height direction again, that is, the placement plate 1 is lifted up by overall translation in the Z axis direction.

[0061] Step eleven: install the fully charged battery on the placement plate 1 into the pure electric heavy truck, and lock the battery in the pure electric heavy truck through the locking and unlocking mechanism.

[0062] Step twelve, drive the first adjusting mechanism and the second adjusting mechanism to descend synchronously in the height direction again, that is, descend along the Z axis; drive the placement plate 1 to descend in the height direction, that is, drive the placement plate 1 to move horizontally and descend along the Z axis; until the highest points of the first adjusting mechanism and the second adjusting mechanism from the ground are again lower than the highest point of the pure electric heavy-duty truck chassis from the ground.

[0063] Step thirteen, drive the first adjustment mechanism and the second adjustment mechanism to move in the first direction again, that is, move along the X-axis, until the battery-swap vehicle completely leaves the bottom of the pure electric heavy truck.

[0064] Step 14: The pure electric heavy truck completes the battery swap and leaves the battery swap station.

[0065] In the vehicle bottom battery replacement method of the present invention, there are many implementation methods for specifically driving the placement plate 1 to move along the second direction, driving the placement plate 1 to rotate around the second axis, and driving the placement plate 1 to rotate around the third axis. Two of the implementation methods are mainly described in detail below, which are described in detail as Example 1 and Example 2 respectively. Other implementation methods are referred to as other embodiments in this article. For other embodiments, a brief description is given below.

[0066] In detail, the detailed scheme for driving the placement plate 1 to move along the second direction, that is, the detailed scheme for moving along the Y axis is as follows:

[0067] Embodiment 1:

[0068] like Figure 2 and Figure 3 As shown, the third adjustment mechanism is arranged on the first adjustment mechanism, and the fourth adjustment mechanism is arranged on the second adjustment mechanism, and the first adjustment mechanism and the second adjustment mechanism are exactly the same. Taking the first adjustment mechanism as an example, the first adjustment mechanism includes an adjustment plate 3, a scissor arm 4 driving the adjustment plate 3 to move along the Z axis, a first base plate 5 connected to the first end of the scissor arm 4, and a pulley rail assembly connected to the first base plate 5, wherein the rail in the pulley rail assembly is arranged along the X axis, and the second end of the scissor arm 4 is connected to the adjustment plate 3. The third mechanism includes a second base plate and a first rail slider assembly arranged along the Y axis, wherein the slider in the first rail slider assembly is connected to the first base plate 5, the rail in the first rail slider assembly is connected to the second base plate, the pulley rail assembly is specifically connected to the second base plate, and the adjustment plate 3 is connected to the placement plate 1 through a chain 6. Therefore, when it is necessary to drive the placement plate 1 to move toward the Y-axis, the first sliders in the third adjustment mechanism and the fourth adjustment mechanism are driven to move synchronously along the Y-axis, driving the adjustment plate 3 to move along the Y-axis, thereby driving the chain 6 and each connection point of the placement plate 1 to move along the Y-axis, and then driving the placement plate 1 to move along the Y-axis, and finally making the battery on the placement plate 1 move along the Y-axis, so that the battery is aligned with the battery compartment in the Y-axis direction.

[0069] In the first embodiment, the battery moves along the X-axis and the Z-axis in the following manner, and the battery rotates around the Y-axis in the following manner. In detail, the scissor arm 4 is driven to move along the Z-axis, which can drive the connection point between the chain 6 and the placement plate 1 to move along the Z-axis. When the movement pace of the chain 6 and each connection point of the placement plate 1 in the Z-axis is consistent, the placement plate 1 as a whole translates along the Z-axis, and the battery translates along the Z-axis. When the movement pace of the chain 6 and each connection point of the placement plate 1 in the Z-axis is inconsistent, the placement plate 1 as a whole rotates around the Y-axis, and the battery rotates around the Y-axis. In the first adjustment mechanism and the second adjustment mechanism, the pulleys in the driving pulley rail assembly all move synchronously along the X-axis, driving the chain 6 and each connection point of the placement plate 1 to move in the same pace in the X-axis direction, thereby driving the placement plate 1 to move along the X-axis, and then driving the battery to move along the X-axis direction.

[0070] Embodiment 2:

[0071] like Figure 4 and Figure 5As shown, the number of the first adjustment mechanism and the second adjustment mechanism is at least two. In the second embodiment, the number of the first adjustment mechanism and the second adjustment mechanism is two. The two first adjustment mechanisms are respectively the first lifting platform 7 and the second lifting platform 8, and the two second adjustment mechanisms are respectively the third lifting platform 9 and the fourth lifting platform 10. The first lifting platform 7 and the second lifting platform 8 are arranged in sequence along the Y axis, and the third lifting platform 9 and the fourth lifting platform 10 are arranged in sequence along the Y axis. The first lifting platform 7 and the third lifting platform are arranged oppositely, and the second lifting platform 8 and the fourth lifting platform 10 are arranged oppositely. The first lifting platform 7, the second lifting platform 8, the third lifting platform 9 and the fourth lifting platform 10 have the same structure. Taking the first lifting platform 7 and the second lifting platform 8 as an example, the first lifting platform 7 and the second lifting platform 8 both include a connecting plate 11, and the first lifting platform 7 and the second lifting platform 8 can both drive the connecting plate 11 to move along the X axis and the Z axis. The third adjustment mechanism and the fourth adjustment mechanism have the same structure. Taking the third adjustment mechanism as an example, the third adjustment mechanism includes a second slide rail slider assembly, and the second slide rail slider assembly is arranged along the Y axis. The placement plate 1 includes a placement plate body 1c and an adjustment plate 1d. The placement plate body 1c is used to carry batteries. The adjustment plate 1d is connected to the placement plate body 1c, and the adjustment plate 1d is also connected to the second slider in the second slide rail slider assembly. In addition, a support plate 12 is provided. The second slide rail in the second slide rail slider assembly is connected to the support plate 12. The first end of the support plate 12 is connected to the connecting plate 11 located on the first lifting platform 7 through a chain 6, and the second end of the support plate 12 is connected to the connecting plate 11 located on the second lifting platform 8 through a chain 6. Since the support plate 12 is connected to the placement plate 1, the connection point between the movable part and the placement plate 1 is transferred to the connection between the second slider and the adjustment plate 1d. When it is necessary to adjust the battery to move along the Y axis, the second slider in the second slide rail slider assembly located on the first side of the support plate 1e can be driven, and the second slider in the second slide rail slider assembly located on the second side of the support plate 1e can be driven to move along the Y axis at the same pace, driving the placement plate body 1c to move along the Y axis, and then driving the battery to move along the Y axis, so that the battery is aligned with the battery compartment in the Y axis direction.

[0072] In the second embodiment, the battery moves along the X-axis and the Z-axis in the following manner, and the battery rotates around the Y-axis in the following manner. In detail, the first lifting platform 7, the second lifting platform 8, the third lifting platform 9 and the fourth lifting platform 10 drive their respective connecting plates 11 to move along the X-axis at the same pace, driving the placement plate body 1c to translate along the X-axis, and then driving the battery to translate along the X-axis. Similarly, the first lifting platform 7, the second lifting platform 8, the third lifting platform 9 and the fourth lifting platform 10 are driven to drive their respective connecting plates 11 to move along the Z-axis at the same pace, thereby driving the battery to translate along the Z-axis. The connecting plates 11 in the first lifting platform 7 and the second lifting platform 8 are driven to move along the Z-axis at the first pace, and the connecting plates 11 in the third lifting platform 9 and the fourth lifting platform 10 are driven to move along the Z-axis at the second pace, so that the relative position of the connecting plates 11 in each first adjustment mechanism and the connecting plates 11 in each second adjustment mechanism on the Z-axis changes, thereby rotating the placement plate body 1c around the Y-axis, and then rotating the battery around the Y-axis.

[0073] Other embodiments:

[0074] A first telescopic assembly can also be installed on the ground of the battery exchange station. The first telescopic assembly includes a first telescopic rod installed on the ground and a translation mechanism connected to the first telescopic rod. The first telescopic rod can be telescoped along the Z-axis direction. The translation mechanism is arranged on the side of the first telescopic rod away from the ground, and the translation mechanism can move along the Y-axis. When the placement plate 1 is located below the battery compartment, the first telescopic rod is driven to extend upward until the translation mechanism contacts the placement plate 1. Then the translation mechanism is driven to move along the Y-axis, driving the placement plate 1 to move along the Y-axis direction, and then driving the battery to move along the Y-axis direction, so that the battery is aligned with the battery compartment in the Y-axis direction. Since the third adjustment mechanism and the fourth adjustment mechanism are respectively arranged on the placement plate 1 in order to reduce the height of the battery from the ground as much as possible, if the distance between the battery and the pure electric heavy truck in the Z-axis direction is large, a drive plate can also be connected to the placement plate 1, and the battery is placed on the drive plate, and the drive plate can move relative to the placement plate 1 along the Y-axis direction.

[0075] In detail, the detailed scheme for driving the placement plate 1 to rotate around the second axis, that is, the detailed scheme for rotating around the Z axis is as follows:

[0076] Embodiment 1:

[0077] like Figure 2 and Figure 3 As shown, the placement plate 1 is composed of a placement bottom plate 1a and a placement top plate 1b rotatably connected to the placement bottom plate 1a. Specifically, the placement bottom plate 1a and the placement bottom plate 1a are connected via a second rotating shaft 13. The battery is placed on the placement top plate 1b. The placement bottom plate 1a and the placement top plate 1b rotate around the second axis, that is, the placement bottom plate 1a and the placement top plate 1b rotate around the second rotating shaft 13, and the axial direction of the second rotating shaft 13 is the Z-axis direction. A rotation adjustment mechanism is provided to drive the placement top plate 1b to rotate around the placement bottom plate 1a. Figure 3 In the embodiment, the rotation adjustment mechanism includes a driving motor 14 and a rack arranged at the edge of the placement top plate 1b, and a gear matched with the rack is arranged at the output end of the driving motor 14. The driving motor 14 rotates, driving the placement top plate 1b to rotate around the Z axis in the XOY plane, and then driving the battery to rotate around the Z axis, so that the battery is aligned with the battery compartment in the XOY plane.

[0078] Embodiment 2:

[0079] like Figure 4 and Figure 5 As shown, the first lifting platform 7 and the third lifting platform 9 together constitute an adjustment component. Similarly, the second lifting platform 8 and the fourth lifting platform 10 also together constitute an adjustment component, and the two adjustment components are arranged in sequence along the Y axis. The relative position between the two adjustment components is driven to change in the first direction, driving the placement plate 1 to rotate around the second axis. That is, the relative position between the two adjustment components on the X-axis is driven to change, such as the relative position of the first lifting platform 7 and the second lifting platform 8 on the X-axis changes, driving the support plate 12 to rotate around the Z-axis on the XOY plane. Since the support plate 12 is rigidly connected to the placement plate body 1c, the relative position of the first lifting platform 7 and the second lifting platform 8 on the X-axis changes, driving the placement plate body 1c to rotate around the Z-axis on the XOY plane, and then driving the battery to rotate around the Z-axis, so that the battery is aligned with the battery compartment on the XOY plane.

[0080] Other embodiments:

[0081] A second telescopic assembly can also be installed on the ground of the battery replacement station. The second telescopic assembly includes a second telescopic rod and a second turntable connected to the second telescopic rod. The second turntable is arranged at the end of the second telescopic rod away from the ground. The second telescopic rod is arranged along the Z axis, and the rotation axis of the second turntable is also arranged along the Z axis. When the placement plate 1 is located below the battery compartment, the second telescopic rod is driven to rise until the second turntable contacts the placement plate 1, and the second turntable is rotated to rotate the placement plate 1 around the Z axis, thereby driving the battery to rotate around the Z axis.

[0082] In detail, the detailed scheme for driving the placement plate 1 to rotate around the third axis, that is, the detailed scheme for rotating around the X axis is:

[0083] Embodiment 1:

[0084] like Figure 2 and Figure 3As shown, the first rotating shaft 2 is provided on both the first adjusting mechanism and the second adjusting mechanism, and the first rotating shaft 2 is rotated, so that the adjusting plate 3 rotates around the first rotating shaft 2. The axial direction of the first rotating shaft 2 is the same as the first direction, and the connecting direction of the first adjusting mechanism and the second adjusting mechanism is the same as the first direction. The connecting direction of the first adjusting mechanism and the second adjusting mechanism is the X-axis direction, and the axial direction of the first rotating shaft 2 is also the X-axis direction. The adjusting plate 3 is movably connected to the placement plate 1 through a chain 6, and the number of chains 6 is at least two, and the connection points of the chain 6 and the adjusting plate 3 are distributed on both sides of the first rotating shaft 2. The first rotating shaft 2 on the first adjusting mechanism and the first rotating shaft 2 on the second adjusting mechanism are synchronously rotated, driving the adjusting plate 3 to rotate around the third axis, that is, driving the adjusting plate 3 to rotate around the X-axis, thereby driving the placement plate 1 to rotate around the X-axis, and then driving the battery to rotate around the X-axis, so that the battery is aligned with the battery compartment.

[0085] Embodiment 2:

[0086] like Figure 4 and Figure 5 As shown, due to the arrangement of the first lifting platform 7, the second lifting platform 8, the third lifting platform 9 and the fourth lifting platform 10. Therefore, the drive adjustment component moves in the height direction, and the relative positions of the adjustment components in the height direction are changed, thereby driving the placement plate 1 to rotate around the third axis. For example, the first lifting platform 7 and the third lifting platform 9 are driven to descend along the Z axis synchronously, and the second lifting platform 8 and the fourth lifting platform 10 are driven to rise along the Z axis synchronously. Due to the arrangement of the chain 6, the support plates 12 on both sides of the placement plate body 1c are synchronously rotated around the X axis, driving the placement plate body 1c to rotate around the X axis, and then driving the battery on the placement plate body 1c to rotate around the X axis, so that the battery is aligned with the battery compartment.

[0087] Other embodiments:

[0088] Two third telescopic assemblies may also be arranged on the ground, and the two third telescopic assemblies are arranged in sequence along the Y-axis direction. When the placement plate 1 is located below the battery compartment, the two third telescopic assemblies are driven to telescope along the Z-axis direction until the two third telescopic assemblies are in contact with the placement plate 1. The two third telescopic assemblies are controlled to telescope at different distances, so that the placement plate 1 rotates around the X-axis.

[0089] In addition, if Figure 2 and Figure 4As shown, the vehicle bottom battery replacement method of the present invention defines the structure of the battery replacement vehicle. The first adjustment mechanism and the second adjustment mechanism are arranged to cooperate with the placement plate 1 to form a concave shape, the placement plate 1 is arranged to be located at the bottom of the concave shape, and the battery is arranged to be located in the recessed area of ​​the concave shape. By configuring the battery replacement vehicle to be in a concave shape, when the battery is carried on the placement plate 1, the overall height of the battery replacement vehicle is effectively reduced, making it easier for the battery replacement vehicle to drive away from the pure electric heavy truck. In other embodiments, when the first adjustment mechanism and the second adjustment mechanism adopt a structure with a lower ground clearance in the height direction, such as when the thickness of the first adjustment mechanism, the second adjustment mechanism and the placement plate 1 in the height direction are close, the first adjustment mechanism, the second adjustment mechanism and the placement plate 1 can also be arranged in a straight line shape.

[0090] In summary, the present invention greatly reduces the height of the battery swap cart by providing a structure of the battery swap cart. By limiting the motion relationship between the first adjustment mechanism and the second adjustment mechanism, the battery can be aligned with the battery compartment. And by providing a third adjustment mechanism and a fourth adjustment mechanism, the battery can be aligned with the battery compartment in the Y-axis direction. And by providing a third adjustment mechanism and a fourth adjustment mechanism, the battery can be aligned with the battery compartment in the Y-axis direction. And by driving the placement plate 1 to rotate around the Z-axis, the placement plate 1 can be aligned with the battery compartment on the XOY plane. And by setting the placement plate 1 to rotate around the X-axis, the adjustment angle of the battery is further increased. And by setting the battery swap cart into a concave shape, the overall height of the battery swap cart is effectively reduced.

[0091] It should be emphasized that the above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for replacing battery at the bottom of a vehicle, characterized in that: The method includes: A placement plate (1) is provided for placing the battery, A first adjustment mechanism is provided on the first side of the placement plate (1), and a second adjustment mechanism is provided on the second side of the placement plate (1); the first side and the second side are arranged opposite to each other, the first adjustment mechanism and the second adjustment mechanism are both connected to the placement plate (1) via a movable part, and the first adjustment mechanism and the second adjustment mechanism are both movable in a first direction and a height direction; The first adjusting mechanism and / or the second adjusting mechanism are arranged to move, so as to drive the connection point between the movable member and the placement plate (1) to move along the first direction or the height direction, thereby driving the placement plate (1) to move along the first direction or along the height direction or to rotate around a first axis, and the axial direction of the first axis is defined to be the same as the second direction, and the first direction, the second direction and the height direction are defined to be perpendicular to each other; The placement plate (1) is set to move along the first direction or rotate around the second direction, thereby adjusting the relative position between the battery on the placement plate (1) and the battery compartment at the bottom of the vehicle, so that the battery is aligned with the battery compartment; After the battery is aligned with the battery compartment, the placement plate (1) moves along the height direction to install the battery into the battery compartment.

2. The vehicle bottom battery replacement method according to claim 1, characterized in that: A third adjustment mechanism arranged on the first side and a fourth adjustment mechanism arranged on the second side are provided; the third adjustment mechanism and the fourth adjustment mechanism can move synchronously along the second direction, driving the placement plate (1) to move along the second direction, thereby adjusting the relative position between the battery and the battery compartment.

3. The vehicle bottom battery replacement method according to claim 1, characterized in that: The placement plate (1) is driven to rotate around a second axis to adjust the relative position between the battery and the battery compartment, and the axial direction of the second axis is the same as the height direction.

4. The vehicle bottom battery replacement method according to claim 1, characterized in that: The placement plate (1) is driven to rotate around a third axis to adjust the relative position between the battery and the battery compartment, and the axial direction of the third axis is the same as the first direction.

5. The vehicle bottom battery replacement method according to claim 3, characterized in that: The placement plate (1) is configured to consist of a placement bottom plate (1a) and a placement top plate (1b) rotatably connected to the placement bottom plate (1a); the placement bottom plate (1a) and the placement top plate (1b) rotate around the second axis; and a rotation adjustment mechanism is configured to drive the placement top plate (1b) to rotate.

6. The vehicle bottom battery replacement method according to claim 3, characterized in that: The first adjustment mechanism and the second adjustment mechanism are defined to together constitute an adjustment component, the number of the adjustment components is set to be two, and the adjustment components are arranged in sequence along the second direction; the relative positions of the two adjustment components in the first direction are driven to change, thereby driving the placement plate (1) to rotate around the second axis.

7. The vehicle bottom battery replacement method according to claim 4, characterized in that: The first adjustment mechanism and the second adjustment mechanism are defined to together constitute an adjustment component, the number of the adjustment components is set to be two, and the adjustment components are arranged in sequence along the second direction; the adjustment components are driven to move along the height direction, and the relative positions of the adjustment components in the height direction are changed, thereby driving the placement plate (1) to rotate around the third axis.

8. The vehicle bottom battery replacement method according to claim 4, characterized in that: A first rotating shaft (2) is provided, and the first adjusting mechanism and the second adjusting mechanism are provided with the same structure, the first adjusting mechanism comprises an adjusting plate (3), the adjusting plate (3) rotates around the first rotating shaft (2), the axial direction of the first rotating shaft (2) is the same as the first direction, and the connecting direction of the first adjusting mechanism and the second adjusting mechanism is the same as the first direction; the adjusting plate (3) is movably connected to the placement plate (1) through the movable part, the number of the movable parts is at least two, and the connection points between the movable parts and the adjusting plate (3) are distributed on both sides of the first rotating shaft (2); the first rotating shaft (2) is rotated to drive the adjusting plate (3) to rotate around the third axis, thereby driving the placement plate (1) to rotate around the third axis.

9. The vehicle bottom battery replacement method according to claim 1, characterized in that: The first adjustment mechanism and the second adjustment mechanism are arranged to cooperate with the placement plate (1) to form a concave shape, the placement plate (1) is arranged to be located at the bottom of the concave shape, and the battery is arranged to be located in a recessed area of ​​the concave shape.

10. A battery swap station, characterized in that: The vehicle bottom battery replacement method described in any one of claims 1 to 9 is adopted.

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