Double-bin sliding table for battery replacement system of electric vehicle and bidirectional battery replacement method

Abstract

The double-bin sliding table comprises two oppositely-arranged sliding table bodies, guide rails I are arranged on the upper planes of the sliding table bodies, guide rails II are arranged on the inner side faces of the sliding table bodies, sliding blocks I and sliding blocks II are arranged on the guide rails correspondingly, and the sliding blocks slide along the guide rails correspondingly; the first group of battery supporting plates are connected with the sliding block I through an upper sliding seat and are positioned on the upper plane of the sliding table; the second group of battery supporting plates are connected with the sliding block II through the lower sliding seat and are positioned on the inner side surface of the sliding table; the two sets of synchronous belts are arranged around the upper plane and the lower plane of the sliding table respectively, the servo motor drives the synchronous belt wheels through the speed reducer and the coupler, and the synchronous belts are connected with the sliding seat to achieve movement of the supporting plate. The technical problem that in the prior art, the efficiency of a battery replacement station is low due to the fact that the battery replacement process is complex or occupies a large space is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of battery replacement for electric vehicles, and in particular, relates to a double-compartment slide and a bidirectional battery replacement method for an electric vehicle battery replacement system. Background Art

[0002] With the popularity and application of electric vehicles, battery replacement stations (battery swap stations) have gradually become an important infrastructure to solve the problem of electric vehicle endurance. The traditional way of charging electric vehicles is time-consuming and difficult to meet the user's demand for fast endurance, so the battery swap model came into being. However, the existing battery swap technology and system design still have some problems and shortcomings in practical applications.

[0003] Battery swap technology with cache position: In the design of some battery swap stations, in order to achieve a smooth battery swap process, the system sets up a cache position for temporary storage of the feeder batteries removed from the electric vehicle. The specific process is: the removed feeder battery is first placed in the cache position, the fully charged battery is moved from the docking position to the RGV (rail-guided transport vehicle), and then the fully charged battery is loaded into the battery compartment of the electric vehicle. After that, the feeder battery in the cache position is moved to the battery compartment of the battery swap station for charging or subsequent processing.

[0004] Although this type of design improves the smoothness of battery replacement, it has the disadvantage of taking up a lot of space. The battery swap station requires additional space to set up cache positions, which not only increases the overall footprint of the battery swap station, but also requires a larger box to accommodate more battery storage positions, increasing the site use cost and equipment manufacturing cost.

[0005] In another prior art, although the docking position is cancelled, the disassembled feed battery is directly sent to the battery compartment, and then a new fully charged battery is moved to the RGV and installed on the electric vehicle. This design omits the cache position, but the battery replacement process becomes more lengthy. Summary of the invention

[0006] In view of the shortcomings existing in the related art, the present invention provides a double-bin slide for an electric vehicle battery replacement system, which solves the technical problem in the prior art that the battery replacement station has low efficiency due to the complicated battery replacement process or the large amount of space occupied.

[0007] In a possible embodiment, a double-bin slide for an electric vehicle battery replacement system is provided, including: two slides arranged opposite to each other, guide rails I are respectively provided on the upper planes of the two slides, guide rails II are respectively provided on the opposite inner surfaces of the two slides, sliders I and sliders II are respectively provided on guide rails I and guide rails II, and sliders I and sliders II slide along guide rails I and guide rails II respectively; two parts of a first group of battery trays are respectively connected to two corresponding sliders I through upper slide seats, and the first group of battery trays are located on the upper planes of the two slides; two parts of a second group of battery trays are respectively connected to two corresponding sliders II through lower slide seats, and the second group of battery trays are located On the relatively inner surfaces of the two slides; two groups of four-section synchronous belts, the two sections of synchronous belts in each group are arranged around the upper plane and the lower plane of the same slide, and a servo motor, a reducer, a coupling and a synchronous pulley are arranged at the same end of the two slides; the servo motor is connected to the coupling through the reducer, and the output shaft of the coupling is connected to the synchronous pulley, and the two synchronous belts are respectively installed on the synchronous pulleys on one side of the servo motor installed and the other side at the two ends of the two slides; the upper slide is connected to the synchronous belt clamping plate, and the synchronous belt clamping plate is connected to the synchronous belt located on the upper plane of the slide; the lower slide is connected to the synchronous belt clamping block mounting seat, and the synchronous belt clamping block mounting seat is connected to the synchronous belt located on the lower plane of the slide.

[0008] In a possible implementation, the two parts of the first group of battery support plates are respectively installed on the upper slide seat through the upper support frame and the upper support plate.

[0009] In a possible implementation, it also includes: a water retaining assembly, including a water retaining bracket and a water retaining plate, the water retaining bracket is installed on the inner surface of the slide and is placed above the guide rail II; the water retaining plate is installed on the water retaining bracket, and the water retaining plate is placed between the planes where the first battery tray and the second group of battery trays are located.

[0010] In a possible implementation manner, one or more water retaining components are provided.

[0011] In one possible embodiment, a method for bidirectional battery replacement of an electric vehicle is provided, which uses a dual-compartment slide of an electric vehicle battery replacement system, including: controlling fully charged batteries to move from a battery rack to a first group of battery trays on the dual-compartment slide; controlling the dual-compartment slide to move under a feed battery of the electric vehicle to be replaced; controlling the feed battery to move to a second group of battery trays; controlling fully charged batteries to move from the first group of battery trays into a battery compartment of the electric vehicle; and controlling the feed battery to move from the second group of battery trays into the battery rack for charging.

[0012] In one possible implementation, controlling the feeding battery to move from the second battery tray into the battery rack includes: controlling the servo motor to start to drive the second battery tray to slide along the slide, receiving a trigger signal from a slide proximity switch, and controlling the servo motor to stop running according to the trigger signal.

[0013] In one possible implementation, controlling the feeding battery to move from the second group of battery trays into the battery rack includes: controlling the servo motor to start to drive the first group of battery trays to slide along the slide, receiving a trigger signal from a slide proximity switch, and controlling the servo motor to stop running according to the trigger signal.

[0014] Based on the above technical solution, the double-compartment slide for the battery replacement system of an electric vehicle of the present invention realizes the bidirectional rapid replacement of the battery of an electric vehicle by setting a double slide structure, synchronous belt drive and servo motor control. Specifically, the first group of battery trays is used to carry fully charged batteries, and the second group of battery trays is used to receive feed batteries, and the synchronous movement in and out of the batteries is realized by bidirectional sliding. The sliding paths of the two battery trays are staggered and operate independently, avoiding mutual interference during the sliding process, and ensuring a smooth replacement process of the fully charged battery and the feed battery. The servo motor drives the synchronous belt to drive the upper slide and the lower slide to slide along the guide rail, so that the fully charged battery is accurately moved into the battery compartment of the electric vehicle, and the feed battery is moved to the battery rack for charging, thereby solving the problem of low efficiency of battery replacement in existing electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of a double-bin slide pallet;

[0017] Figure 2 Two sets of battery trays for double-compartment slides;

[0018] Figure 3 This is a schematic diagram of the position of the double-bin slide slider guide rail and synchronous belt;

[0019] Figure 4 This is a schematic diagram of the location of a battery swap station in the prior art;

[0020] Figure 5 It is a schematic diagram of the working area of ​​the double-bin slide table of the present invention;

[0021] Figure 6 It is a schematic diagram of the double-bin slide structure of the present invention;

[0022] Figure 7 It is a structural line drawing of a double-bin slide;

[0023] Figure 8 for Figure 7 A partial enlarged view of .

[0024] In the figure:

[0025] 5. Double-bin slide; 51. Slide; 52. Guide rail I; 53. Guide rail II; 54. Slider I; 55. Slider II; 56. First set of battery support plates; 561. Upper slide; 562. Upper support frame; 563. Upper support plate; 564. Scale plate; 565. Scale; 566. Sensor sheet II; 567. Slide proximity switch; 568. Water retaining bracket; 569. Water retaining plate; 57. Second set of battery support plates; 571 , lower slide seat; 572, upper guide block; 573, lower guide block; 574, lower guide block right; 575, upper guide block right; 576, lower guide block left; 577, upper guide block left; 578, lower support plate; 58, synchronous belt; 59, servo motor; 510, reducer; 511, coupling; 512, synchronous belt pulley; 513, synchronous belt clamping plate; 514, synchronous belt clamping block mounting seat; 515, drive shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the examples of the present application to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0029] In the description of this application, 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In order to solve the technical problem in the prior art that battery replacement stations are inefficient due to the complicated battery replacement process or the large amount of space occupied, the present application provides a double-compartment slide for an electric vehicle battery replacement system.

[0031] See also Figure 1-Figure 3 In a possible embodiment, the double-bin slide 5 is used for a battery replacement system of an electric vehicle, including: two slides 51 arranged opposite to each other, guide rails Ⅰ 52 are respectively arranged on the upper planes of the two slides 51, and guide rails Ⅱ 53 are respectively arranged on the relatively inner surfaces of the two slides 51; sliders Ⅰ 54 and sliders Ⅱ 55 are respectively arranged on the guide rails Ⅰ 52 and guide rails Ⅱ 53, and the sliders Ⅰ 54 and sliders Ⅱ 55 slide along the guide rails Ⅰ 52 and guide rails Ⅱ 53 respectively; the two parts of the first group of battery trays 56 are respectively connected to the two corresponding sliders Ⅰ 54 through the upper slides 561, and the first group of battery trays 56 are located on the upper planes of the two slides 51; the two parts of the second group of battery trays 57 are respectively connected to the two corresponding sliders Ⅱ 55 through the lower slides 571, and the second group of battery trays 57 are located on the relatively inner surfaces of the two slides 51.

[0032] Two groups of four-section synchronous belts 58, the two sections of synchronous belts 58 in each group are arranged around the upper plane and the lower plane of the same slide 51, and a servo motor 59, a reducer 510, a coupling 511 and a synchronous pulley 512 are arranged at the same end of the two slides 51. The servo motor 59 is connected to the coupling 511 through the reducer 510, and the output shaft of the coupling 511 is connected to the synchronous pulley 512. The two synchronous belts 58 are respectively installed on one side of the servo motor 59 installed at both ends of the two slides 51 and the synchronous pulley 512 on the other side. The upper slide 561 is connected to the synchronous belt clamping plate 513, and the synchronous belt clamping plate 513 is connected to the synchronous belt 58 located on the upper plane of the slide 51; the lower slide 571 is connected to the synchronous belt clamp block mounting seat 514, and the synchronous belt clamp block mounting seat 514 is connected to the synchronous belt 58 located on the lower plane of the slide 51.

[0033] The double-bin slide table realizes the sliding and fixing of the battery tray by the relative arrangement of two slide tables 51, and cooperates with the sliders Ⅰ54 and Ⅱ55 on the guide rails Ⅰ52 and Ⅱ53. The first group of battery trays 56 slide along the guide rail Ⅰ52 through the upper slide seat 561 and the slider Ⅰ54, and the second group of battery trays 57 slide along the guide rail Ⅱ53 through the lower slide seat 571 and the slider Ⅱ55. The two groups of battery trays adopt a two-way synchronous transmission method to alternately complete the transportation and replacement operations of the feeding battery and the fully charged battery, and are independent of each other during the operation process, and will not interfere with the entire The battery replacement process includes controlling the servo motor 59 to drive the synchronous belt 58 to move the fully charged battery from the battery rack to the first group of battery trays, and at the same time move the feeding battery to the second group of battery trays and move the slide to the bottom of the electric vehicle. Through precise positioning and synchronous control, the loading of the fully charged battery and the unloading of the feeding battery are realized to ensure that the whole process is carried out efficiently and automatically. The servo motor 59 drives the synchronous belt 58 to rotate, and the synchronous belt clamping plate 513 and the synchronous belt clamp block mounting seat 514 are used to drive the tray to perform precise displacement to ensure precise control of the tray position.

[0034] The double-bin slide has a compact structure. The two slides realize multi-directional sliding of the battery tray through the upper and lower guide rails, and can simultaneously carry out battery loading and unloading operations, greatly improving the efficiency of battery replacement. The servo motor drives the synchronous belt system to achieve automatic and precise control of the battery tray, reducing the complexity of operation and manual participation, and improving the stability and reliability of the system.

[0035] In another possible implementation, guide rails I 52 and II 53 may use other forms of linear guides, such as ball guides or magnetic levitation guides, to adapt to different environmental requirements. The synchronous belt drive system can be replaced with a chain drive or a gear drive system to enhance durability and load capacity under special conditions. At the same time, the servo motor 59 can be replaced with other types of motors as needed, such as a stepper motor or a brushless DC motor, to meet different precision and response speed requirements.

[0036] See also Figure 3 In a possible implementation manner, the two parts of the first battery support plate 56 are respectively installed on the upper slide 561 through the upper support frame 562 and the upper support plate 563.

[0037] The upper support frame 562 and the upper support plate 563 provide stable support for the first group of battery support plates 56, ensuring that the batteries can be firmly fixed on the support plates and slide smoothly through the sliding cooperation between the upper slide seat 561 and the slider I54, thereby achieving precise movement of the battery support plates.

[0038] This structure improves the stability and load-bearing capacity of the battery tray by adding an upper support frame 562 and an upper tray 563, ensures the stability and safety of the battery during the sliding of the tray, and effectively reduces the risk of failure caused by battery shaking or loosening.

[0039] In a possible embodiment, the double-bin slide also includes a water retaining assembly, which includes a water retaining bracket 568 and a water retaining plate 569. The water retaining bracket 568 is installed on the inner surface of the slide 51 and is located above the guide rail II 53. The water retaining plate 569 is installed on the water retaining bracket and is placed between the planes where the first group of battery trays 56 and the second group of battery trays 57 are located.

[0040] The water retaining assembly is fixed to the inner side of the slide 51 by a water retaining bracket, and the water retaining plate is placed above the guide rail II 53, thereby effectively preventing external liquid or dust from entering the key parts of the sliding system, such as the guide rail and the slider. This structure ensures the cleanliness and smoothness of the sliding process of the battery tray, especially in an environment with high humidity or possible liquid leakage, which can effectively extend the service life of the system.

[0041] The setting of the water retaining assembly improves the protection capability of the slide system, can effectively block liquid or dust, prevent contamination or damage to key components such as guide rails and motors, and extend the service life of the system. At the same time, the structure is simple, easy to install and maintain, and greatly reduces the failure rate of the system in harsh environments.

[0042] In a possible implementation, one or more groups of water retaining components may be provided to enhance the protective effect of the system.

[0043] By increasing the number of water retaining components, the slide system can be more comprehensively protected in different key locations. For example, water retaining components can be installed near multiple guide rails or battery trays to prevent liquids or dust from affecting sliding components in multiple areas at the same time. Each water retaining component functions independently to ensure that the slide system can still work normally under complex working conditions.

[0044] See also Figure 7 and Figure 8 In a possible implementation, the double-bin slide also includes a scale plate 564 , which is disposed on the upper slide 561 and has an indicating end, which indicates a scale 565 on the slide 51 .

[0045] The scale plate 564 is fixed on the upper slide 561, and its indicating end is used in conjunction with the scale 565 on the slide 51. When the battery tray slides along the guide rail, the indicating end of the scale plate moves to the corresponding position, indicating the exact position of the current tray. This design can assist equipment installation and maintenance personnel to find the zero point when debugging the equipment, and provide a reference for setting the position for system control.

[0046] See also Figure 8In a possible implementation, the double-bin slide also includes a sensing sheet II 566 and a slide proximity switch 567. The sensing sheet II 566 is disposed on the upper slide 561, and the slide proximity switch 567 is disposed at both ends of the slide 51. When the sensing sheet II 566 contacts the slide proximity switch 567, the slide proximity switch 567 is triggered and a trigger signal is sent out. The servo motor 59 is controlled by the trigger signal of the slide proximity switch 567 and stops.

[0047] When the battery tray moves to a predetermined position through the slide, the sensor sheet II 566 on the upper slide 561 triggers the proximity switches 567 at both ends of the slide 51. The proximity switches send a signal to control the servo motor 59 to stop running. This method ensures the automatic stop function of the battery tray when it moves to the specified position, avoids excessive sliding of the tray, and provides precise control of the movement of the battery tray.

[0048] In a possible implementation, a bidirectional battery replacement method for an electric vehicle uses a dual-bin slide system of any of the above implementations. The method includes the following steps:

[0049] Control the fully charged batteries to move from the battery rack to the first battery support plate 56 of the double-compartment slide;

[0050] Control the double-bin slide to move to the bottom of the electric vehicle feed battery to be replaced;

[0051] Control the feeding battery to move to the second battery support plate 57;

[0052] Controlling the fully charged batteries to move from the first battery tray 56 into the battery compartment of the electric vehicle;

[0053] The control feed battery is moved from the second battery tray 57 into the battery rack and charged.

[0054] First, the control system of the electric vehicle drives the first group of battery trays 56 to slide through the servo motor 59 and the synchronous belt drive system of the double-bin slide, and moves the fully charged batteries on the battery rack to the upper tray of the double-bin slide. Subsequently, the slide system moves the battery tray to the bottom of the battery compartment of the electric vehicle. Then, the feeding battery is moved to the second group of battery trays 57 through the sliding mechanism of the battery tray. Then, the system controls the first group of battery trays 56 to accurately place the fully charged batteries into the battery compartment of the electric vehicle. Finally, by controlling the second group of battery trays 57, the feeding battery is slid from the tray into the battery rack for charging. The entire process is precisely positioned through the slide proximity switch 567, and efficient two-way battery replacement operation is achieved through the automatic control of the servo motor.

[0055] In a possible implementation, the operation of controlling the feeding battery to move from the second battery tray 57 into the battery rack includes the following steps:

[0056] Control the servo motor 59 to start, driving the second battery support plate 57 to slide along the slide 51;

[0057] When the slide proximity switch 567 is triggered by the induction sheet II 566, the servo motor 59 is controlled to stop running.

[0058] When the feeding battery needs to be moved from the second group of battery trays 57 into the battery rack, the system first starts the servo motor 59, drives the slider II 55 to drive the tray to slide along the guide rail II 53. When the second group of battery trays moves to the predetermined position, the sensor sheet II 566 on the upper slide 561 triggers the slide proximity switch 567. After receiving the stop signal, the servo motor 59 immediately stops the sliding of the tray, so that the feeding battery falls accurately into the battery rack for charging.

[0059] By controlling the start and stop of the servo motor, the precise movement of the battery tray and the safe loading and unloading of the feed battery are achieved; the slide proximity switch 567 provides real-time feedback to ensure that the movement of the tray is accurate and correct, effectively avoiding the battery sliding over or under, and further improving the safety and stability of the system.

[0060] Some other embodiments of the present invention are as follows:

[0061] 1. The double-bin slide has two types of battery temporary storage pallets, one high and one low. The placement of different batteries is determined by the guide block, which can be used to transport batteries of two different sizes.

[0062] 2. The double-compartment slide has two sets of battery trays, i.e. two battery transport positions. Figure 5 Each set of battery pallets can transport large and small batteries. The two sets of pallets move on the slide through sliders and guide rails. The two sets of battery pallets are connected together through four sets of synchronous belts. The main motor of the slide drives the synchronous belt pulley to drive the synchronous belt movement, so that the two sets of pallets can run synchronously and staggered, which greatly improves the battery transportation speed. Figure 7 .

[0063] As another implementation method, the battery swapping process and mechanism of the battery swapping station are described as follows;

[0064] The battery swapping system of the battery swapping station of the present invention is used to reduce the occupied volume of the battery swapping station without reducing the battery swapping time. The prior art includes:

[0065] 1. The battery swap station is equipped with a cache position for the removed batteries. After the feeder battery removed from the vehicle is placed in the cache position, the fully charged battery is moved from the docking position to the RGV, and then the fully charged battery is installed on the vehicle. It is best to move the cache position battery to the battery compartment; see Figure 4 .

[0066] Disadvantages of prior art 1: The cache position temporarily takes up more space, and the box of the power station also needs to be larger;

[0067] 2. Cancel the docking position, put the checked batteries into the battery compartment, and then move a new battery to the RGV;

[0068] Disadvantages of existing technology 2: The battery replacement time is too long. After the battery on the car is disassembled, it needs to be sent to the battery compartment first, and then another battery is moved, which adds more time and is not good for the customer experience.

[0069] The present invention describes a battery replacement process and mechanism, which eliminates the buffer position, reduces the area occupied by the battery replacement station and the size of the box, and adopts a double-layer design from the docking position to the RGV conveying mechanism. Before the battery replacement, a fully charged battery is prepared on the lower layer, and the removed feed battery is moved from the RGV to the upper layer, and the feed battery is transported from the upper layer to the docking position, and the fully charged battery is transported from the lower layer to the RGV. Figure 5 .

[0070] A1 and A2, B1 and B2 are two groups of battery lifting mechanisms, with upper and lower layers, which reciprocate left and right on the slide rails through belts;

[0071] A1 and A2 are responsible for transporting the dismantled old batteries, while B1 and B2 are responsible for transporting the fully charged new batteries to be installed.

[0072] First, place the fully charged new battery on B1B2, move A1 and A2 to the removed feeding battery, lift the battery, then move A1A2 to the right and B1B2 to the left synchronously; the two sets of lifting mechanisms move synchronously to reduce the time of transportation; after the battery replacement is completed, move the A1A2 battery to the battery rack, A1A2 to the left, and B1B2 to the right to return to the origin.

[0073] This solution adopts a two-layer conveying mechanism design, which reduces the cache positions without reducing the battery replacement speed, thus reducing the cost of the battery replacement station while retaining the battery replacement experience; a double-layer conveying mechanism is adopted, and the conveying mechanism is in the form of a battery replacement cart instead of a double-layer conveyor belt; a lifting and moving method is adopted to transport batteries.

[0074] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0075] The above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present application, which should be included in the scope of the technical solution requested for protection in the present application.

Claims

1. A double-compartment slide for an electric vehicle battery replacement system, characterized in that: include: The double-bin slide (5) comprises two slides (51) arranged opposite to each other, wherein a first group of battery support plates (56) are located on the upper planes of the two slides (51); and a second group of battery support plates (57) are located on the opposite inner surfaces of the two slides (51); Two groups of four-section synchronous belts (58), each group of two-section synchronous belts (58) are arranged around the upper plane and the lower plane of the same slide (51), and a servo motor (59), a reducer (510), a coupling (511) and a synchronous pulley (512) are arranged at the same end of the two slides (51); the first group of battery support plates (56) and the second group of battery support plates (57) are respectively connected to the upper plane and the lower plane of the two groups of four-section synchronous belts (58).

2. The double-compartment slide for an electric vehicle battery replacement system according to claim 1, characterized in that: Two slides (51) are arranged opposite to each other, guide rails I (52) are arranged on the upper planes of the two slides (51), guide rails II (53) are arranged on the opposite inner surfaces of the two slides (51), sliders I (54) and sliders II (55) are arranged on the guide rails I (52) and II (53), respectively, and the sliders I (54) and II (55) slide along the guide rails I (52) and II (53), respectively; The two parts of the first battery support plate (56) are respectively connected to two corresponding sliders I (54) through an upper slide seat (561); The two parts of the second battery support plate (57) are respectively connected to two corresponding sliders II (55) through a lower slide seat (571); The servo motor (59) is connected to the coupling (511) via a speed reducer (510), the output shaft of the coupling (511) is connected to a synchronous pulley (512), and two synchronous belts (58) are respectively installed on one side of the servo motor (59) and the synchronous pulley (512) on the other side at both ends of the two slides (51); The upper slide seat (561) is connected to the synchronous belt clamping plate (513), and the synchronous belt clamping plate (513) is connected to the synchronous belt (58) located on the upper plane of the slide table (51); The lower slide seat (571) is connected to the synchronous belt clamp block mounting seat (514), and the synchronous belt clamp block mounting seat (514) is connected to the synchronous belt (58) located on the lower plane of the slide table (51).

3. The double-compartment slide for an electric vehicle battery replacement system according to claim 2, characterized in that: The two parts of the first battery support plate (56) are respectively mounted on the upper slide seat (561) via an upper support frame (562) and an upper support plate (563).

4. The double-compartment slide for an electric vehicle battery replacement system according to claim 3, characterized in that: Also includes: The water retaining assembly comprises a water retaining bracket (568) and a water retaining plate (569). The water retaining bracket (568) is mounted on the inner surface of the slide (51) and is placed above the guide rail II (53). The water retaining plate (569) is mounted on the water retaining bracket (568). The water retaining plate (569) is placed between the planes where the first battery support plate (56) and the second battery support plate (57) are located.

5. The double-compartment slide for an electric vehicle battery replacement system according to claim 4, characterized in that: One or more water retaining components are provided.

6. A bidirectional battery replacement method for an electric vehicle, characterized in that: The double-compartment slide for an electric vehicle battery replacement system according to any one of claims 1 to 5 comprises: Control the fully charged batteries to move from the battery rack to the first battery tray of the double-compartment slide; Control the double-bin slide to move to the bottom of the feed battery of the electric vehicle to be replaced; Control the feed battery to move to the second battery tray; Control the fully charged battery to move from the first battery tray into the battery compartment of the electric vehicle; The control feed battery is moved from the second battery tray into the battery rack and charged.

7. The electric vehicle bidirectional battery replacement method according to claim 6, characterized in that: Controlling the feeding battery to move from the second battery tray into the battery rack includes: controlling the servo motor to start to drive the second battery tray to slide along the slide, receiving a trigger signal from a slide proximity switch, and controlling the servo motor to stop running according to the trigger signal.

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