Locking and unlocking mechanism and electric vehicle battery replacement system

Abstract

The utility model relates to a locking and unlocking mechanism for a battery replacement system of an electric vehicle, which comprises a locking and unlocking mechanism arranged on a battery supporting plate, the battery supporting plate comprises a first-layer plate and a second-layer frame, and the first-layer plate is arranged above the second-layer frame; the locking and unlocking mechanism comprises a Z-direction lock head, a Y-direction lock head and an X-Y-direction lock head which penetrate through the first-layer plate; the Z-direction lock head is installed on a Z-direction lifting plate on the back face of the first-layer plate, and the Z-direction lifting plate is driven by an electric cylinder to move in the vertical direction. The X-Y-direction lock head slides along the horizontal direction under the pushing of the electric cylinder through the guide rail system; and the Y-direction lock head is controlled by a push plate and an electric cylinder to move along a specified direction. The technical problems that in the prior art, a locking and unlocking mechanism is difficult to adapt to batteries of different sizes, and multi-direction accurate control cannot be carried out are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric vehicle battery replacement, and particularly relates to an electric vehicle battery replacement system and a locking and unlocking mechanism. BACKGROUND

[0002] With the popularity of electric vehicles, the application of electric vehicle battery replacement systems is becoming increasingly widespread. At present, there are many types of batteries used by electric vehicles on the market, and the sizes and specifications of the batteries are different, which brings many challenges to the locking and unlocking operation in the battery replacement process. The existing locking and unlocking mechanism can usually only be applied to batteries of a specific size, and cannot meet the installation and disassembly needs of batteries of different sizes, resulting in low replacement efficiency and poor device versatility, and it is difficult to meet the diversified market demand.

[0003] In the existing system, the locking and unlocking mechanism cannot be accurately controlled in multiple directions, especially when locking and unlocking large-size batteries. The common one-way movement mechanism cannot guarantee that the locking and unlocking head can accurately reach the specified position, further exacerbating the inconvenience and complexity of the replacement operation. Therefore, the existing technology urgently needs a locking and unlocking mechanism that can adapt to batteries of different sizes and has the function of accurate control in multiple directions, so as to improve the versatility, stability and operation efficiency of the battery replacement system. CONTENT OF THE INVENTION

[0004] In view of the deficiencies in the related art, the locking and unlocking mechanism of the electric vehicle battery replacement system provided by the present application solves the technical problem that the existing locking and unlocking mechanism cannot adapt to batteries of different sizes and cannot be accurately controlled in multiple directions.

[0005] In a possible implementation, a locking and unlocking mechanism for an electric vehicle battery replacement system is provided, the locking and unlocking mechanism is arranged on a battery tray, the battery tray comprises a layer plate and a two-layer frame, the layer plate is installed above the two-layer frame; the locking and unlocking mechanism comprises a Z-direction lock head, a Y-direction lock head and an X-Y-direction lock head passing through the layer plate; wherein the Z-direction lock head is installed on a Z-direction lifting plate in the shape of an I-beam on the back of the layer plate, the back of the layer plate is installed with a cylinder V through a cylinder mounting seat, the output shaft of the cylinder V is connected with the Z-direction lifting plate to drive the Z-direction lifting plate and the Z-direction lock head thereon to move up and down along a direction perpendicular to the plane of the layer plate; a guide shaft is arranged on the Z-direction lifting plate and passes through the layer plate, the Z-direction lifting plate and the Z-direction lock head thereon move up and down along the guide shaft; the back of the layer plate is provided with a cylinder III, a guide rail III, a cylinder IV and a guide rail IV, the output shaft of the cylinder IV is connected with the X-Y-direction lock head, the X-Y-direction lock head is connected with the guide rail IV and can slide along the guide rail IV under the pushing of the cylinder IV; the output shaft of the cylinder III is connected with the guide rail IV, the guide rail IV is installed on the guide rail III and can slide along the guide rail III under the pushing of the cylinder III, and the guide rail IV is perpendicular to the guide rail III; the back of the layer plate is provided with a cylinder VIII, a guide rail VIII and a Y-direction push plate, the Y-direction lock head is connected with the guide rail VIII through the Y-direction push plate, and the output shaft of the cylinder VIII is connected with the Y-direction push plate and can push the Y-direction push plate and the Y-direction lock head connected therewith to slide along the guide rail VIII.

[0006] In a possible implementation, the Z-direction lock head is four, which is arranged on four endpoints of the Z-direction lifting plate in the shape of an I-beam; the layer plate and the two-layer frame are connected by electromagnetic attraction, and the electromagnet is provided with four.

[0007] In a possible implementation, a plurality of side scissors assemblies are arranged between the layer plate and the two-layer frame, the side scissors assembly comprises two side scissors, two fixed seats, two sliding seats and two guide rails; the two side scissors are X-shaped, the same ends of the two side scissors are respectively installed on the layer plate and the two-layer frame through the fixed seats; the other ends of the two side scissors are respectively installed on the two guide rails through the sliding seats; and the two guide rails are respectively installed on the layer plate and the two-layer frame.

[0008] In a possible implementation, two groups of side scissors assemblies are arranged in parallel on opposite sides of the layer plate and the two-layer frame.

[0009] In a possible implementation, the X centers of the two side scissors are connected by a pin shaft.

[0010] In a possible implementation, a drag chain is further included, which is arranged between the layer plate and the two-layer frame, the drag chain has a channel inside, and the channel is arranged with cables of motors and switch devices.

[0011] In a possible implementation, an electric vehicle battery replacement system is provided, which comprises a locking and unlocking mechanism for the electric vehicle battery replacement system, and the locking and unlocking mechanism is arranged between layers of a battery frame.

[0012] In a possible implementation, the battery rack further comprises a plurality of battery positioning devices, and the battery positioning devices and the battery pads are arranged on each layer of the battery rack; the battery positioning devices comprise a large battery positioning shaft and a small battery positioning shaft, and the large battery positioning shaft and the small battery positioning shaft are installed on the battery rack and are adapted to large batteries and small batteries of different sizes or specifications respectively; and the battery pads are installed on the battery rack and are arranged correspondingly to the battery positioning devices, and are used for supporting the large batteries or the small batteries.

[0013] Based on the above technical scheme, the locking and unlocking mechanism of the electric vehicle battery replacement system can realize stable locking and unlocking of the battery supporting plate in multiple directions through the Z-direction, Y-direction and X-Y-direction lock heads. The electric cylinder drives each lock head for accurate control, which can automatically complete the locking and unlocking operation of the battery during the battery replacement process, greatly improving the efficiency and safety of the battery replacement. The system is particularly suitable for battery racks with a multi-layer structure, can more effectively utilize space, and can be adapted to batteries of different sizes, further improving the automation degree and applicability of the electric vehicle battery replacement. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0015] Figure 1 Two battery placement schemes of the battery rack of the utility model are shown;

[0016] Figure 1a The utility model is Figure 1 A partial enlarged view of the large battery positioning shaft and the small battery positioning shaft in the utility model;

[0017] Figure 2 A top view of the locking and unlocking mechanism and a schematic view of the movement direction of the locking and unlocking lock head;

[0018] Figure 3 The top plate back side layout of the locking and unlocking mechanism;

[0019] Figure 3a The overall structure of the locking and unlocking mechanism;

[0020] Figure 4 A schematic view of the double-layer electric cylinder layout on the back side of the one-layer plate of the locking and unlocking mechanism;

[0021] Figure 5 A schematic view of the installation of the four lock heads in the locking and unlocking structure;

[0022] Figure 5a A schematic view of the partial structure at the bottom of the two-layer plate of the locking and unlocking mechanism;

[0023] Figure 5b The schematic view of the bottom of the two-layer plate of the locking and unlocking mechanism

[0024] Figure 6 The schematic view of the side scissors assembly structure of the locking and unlocking mechanism

[0025] Figure 7 The schematic view of the drag chain structure of the locking and unlocking mechanism.

[0026] In the figure:

[0027] 1, battery holder; 11, large battery; 12, small battery; 21, large battery positioning shaft; 22, small battery positioning shaft; 3, battery cushion block; 6, locking and unlocking mechanism; 61, one-layer plate; 62, two-layer frame; 63, Z-direction lock head; 64, Y-direction lock head; 65, X-Y-direction lock head; 66, Z-direction lifting plate; 67, electric cylinder V; 671, electric cylinder mounting seat; 68, guide shaft; 69, electric cylinder III; 610, guide rail III; 611, electric cylinder IV; 612, guide rail IV; 613, electric cylinder VIII; 614, guide rail VIII; 615, Y-direction push plate; 616, electromagnet; 617, side scissors; 618, fixed seat; 619, sliding seat; 620, guide rail VII; 621, pin shaft II; 622, drag chain; 623, hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be understood that the terms “center”, “transverse”, “longitudinal”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] The terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first”, “second”, “third” can explicitly or implicitly include one or more of the features.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In order to solve the technical problems that the unlocking mechanism in the prior art is difficult to adapt to different sizes of batteries and cannot be accurately controlled in multiple directions. The present application provides an electric vehicle battery replacement system and its locking and unlocking mechanism.

[0033] Referring to Figure 1 and Figure 1a In one possible implementation, the electric vehicle battery replacement system includes a battery rack 1 and a plurality of battery positioning devices. The battery rack 1 is a multi-layer structure, each layer is provided with a battery positioning device and a battery pad 3. The battery positioning device includes a large battery positioning shaft 21 and a small battery positioning shaft 22, which are respectively adapted to different sizes or specifications of batteries 11 and 12, and are installed on the battery rack 1. The battery pad 3 is installed on the battery rack 1 and is correspondingly arranged with the battery positioning device to support the battery 11 and 12.

[0034] The electric vehicle battery replacement system includes a battery rack 1 and a plurality of battery positioning devices. The battery rack 1 adopts a multi-layer structure, each layer is provided with a battery positioning device and a battery pad 3. The battery positioning device is composed of a large battery positioning shaft 21 and a small battery positioning shaft 22, which are respectively adapted to different sizes or specifications of batteries 11 and 12. The battery positioning shafts 21 and 22 are installed on the battery rack 1, so that the batteries can be stably installed and positioned. The battery pad 3 is installed on the battery rack 1 and is correspondingly arranged with the battery positioning device to support the battery and ensure the stability of the battery in use.

[0035] In the above implementation, the multi-layer structure of the battery rack 1 enables the system to accommodate multiple batteries and adapt to different sizes of batteries through different positioning devices. The large battery positioning shaft 21 and the small battery positioning shaft 22 are respectively adapted to the batteries according to their sizes, ensuring the stable fixation of the batteries on the battery rack 1. The cooperation of the battery pad 3 and the battery positioning device can effectively support the battery, avoid the battery from shaking or shifting during use, and ensure the safety and stability of the battery during the operation of the electric vehicle.

[0036] The system design can adapt to batteries of various specifications, improving the convenience and adaptability of electric vehicle battery replacement. In addition, through the supporting action of the battery pad 3, the stability of the battery installation is further enhanced, the damage of the battery caused by vibration or impact is reduced, and the service life of the battery is prolonged.

[0037] Referring to Figures 2-4 In one possible implementation, the unlocking mechanism 6 includes a first layer plate 61 and a second layer frame 62. The first layer plate 61 is installed above the second layer frame 62. The unlocking mechanism 6 includes a Z-direction lock head 63, a Y-direction lock head 64, and an X-Y-direction lock head 65 passing through the first layer plate 61. The Z-direction lock head 63 is installed on an I-shaped Z-direction lifting plate 66 at the back of the first layer plate 61. An electric cylinder V 67 is fixed to the back of the first layer plate 61 through a mounting seat 671. The output shaft of the electric cylinder V 67 is connected to the Z-direction lifting plate 66 to move it up and down, thereby driving the Z-direction lock head 63 to move up and down in the vertical direction. A guide shaft 68 is arranged on the Z-direction lifting plate 66 to pass through the first layer plate 61, so that the Z-direction lifting plate 66 and the Z-direction lock head 63 move up and down along the guide shaft 68.

[0038] An electric cylinder III 69, a guide rail III 610, an electric cylinder IV 611, and a guide rail IV 612 are installed at the back of the first layer plate 61. The output shaft of the electric cylinder IV 611 is connected to the X-Y-direction lock head 65 and slides through the guide rail IV 612. The electric cylinder III 69 drives the guide rail IV 612 to move in a direction perpendicular to the guide rail III 610, thereby driving the X-Y-direction lock head 65 to operate. The Y-direction lock head 64 is connected to a guide rail VIII 614 through a Y-direction push plate 615 and is driven by an electric cylinder VIII 613 to slide along the guide rail VIII 614.

[0039] The unlocking mechanism 6 realizes the automatic locking and unlocking of the battery tray 56 through the lock heads in three directions (Z-direction, Y-direction, and X-Y-direction) and the corresponding electric cylinder and guide rail system. The Z-direction lock head 63 moves up and down along the guide shaft 68 through the action of the electric cylinder V 67, ensuring that the battery tray 56 is locked or released in the vertical direction. The Y-direction lock head 64 and the X-Y-direction lock head 65 slide on the corresponding guide rail VIII 614 and guide rail IV 612, respectively, through the driving of the electric cylinder VIII 613 and the electric cylinder IV 611, realizing the locking or releasing of the battery tray 56 in the Y-direction and the X-Y-direction. Through this multi-directional locking and unlocking design, the battery tray 56 can be firmly fixed in three-dimensional space, ensuring the safety and stability of the battery during replacement.

[0040] The unlocking mechanism provides a multi-directional locking mode, ensuring the safety and reliability of the battery during installation and replacement. The multi-directional locking design not only enhances the fixation effect of the battery, but also improves the operation efficiency of the entire system.

[0041] Referring to Figure 5 and Figure 5a , 5b In one possible implementation, the Z-direction lock head 63 is four, arranged at four endpoints of the I-shaped Z-direction lifting plate 66. The first layer plate 61 and the second layer frame 62 are connected by an electromagnet 616, and the electromagnet 616 is provided with four.

[0042] In the above embodiments, the number of Z-direction lock heads 63 is four, arranged at the four endpoints of the I-shaped Z-direction lifting plate 66 to ensure the locking of the battery at multiple points and improve the stability of the fixation. The electromagnet 616 provides additional adsorption force to tightly connect the first layer plate 61 and the second layer rack 62 together through electromagnetic adsorption, further enhancing the stability and safety of the overall structure.

[0043] This design effectively improves the fixation performance and operational safety of the system by increasing the number of Z-direction lock heads 63 and introducing electromagnetic adsorption connection. Especially in application scenarios requiring higher strength and reliability, this design can provide more stable and reliable battery fixation effect.

[0044] Referring to Figure 6 In a possible embodiment, a set of side scissors assemblies is provided between the first layer plate 61 and the second layer rack 62. The set of side scissors assemblies includes two side scissors 617, two fixed seats 618, two sliding seats 619, and two guide rails VII 620. The two side scissors 617 are X-shaped and are fixed to the first layer plate 61 and the second layer rack 62 through the fixed seats 618, and the other end is connected to the guide rails VII 620 through the sliding seats 619, which are installed on the first layer plate 61 and the second layer rack 62.

[0045] The side scissors assembly provides additional support and adjustment functions for the first layer plate 61 and the second layer rack 62 through the X-shaped structure. During the installation and removal of the battery first layer plate, the side scissors assembly can bear the weight of the first layer plate and guide its smooth movement. Through the sliding of the sliding seat 619 on the guide rail VII 620, the side scissors assembly can realize flexible adjustment of the first layer plate, ensuring stability and precise positioning during battery replacement.

[0046] In another embodiment, the number and size of the side scissors assemblies can be adjusted according to the weight and size of the battery first layer plate. The design of the guide rail VII 620 and the sliding seat 619 can also be optimized as needed, choosing more durable or corrosion-resistant materials to adapt to applications in harsh environments.

[0047] In a possible embodiment, the side scissors assemblies are provided in two sets, respectively arranged on opposite sides of the first layer plate 61 and the second layer rack 62. The two sets of side scissors assemblies can provide support and adjustment functions for the battery tray at different positions of the tray, thereby realizing stable movement and locking of the battery first layer plate.

[0048] The two sets of side scissor assemblies are installed on the opposite sides of the battery tray, and the parallel arrangement further increases the stability and carrying capacity of the tray. During the battery replacement process, the side scissor assemblies not only support the tray, but also adjust the height and position of the tray in the vertical and horizontal directions, ensuring that the battery tray can be smoothly locked or unlocked.

[0049] In one possible implementation, the two side scissors 617 are connected at the center of the X-shaped structure by a pin shaft 621. The rotation function of the pin shaft 621 through the center point enables the side scissors 617 to achieve flexible extension and adjustment, enhancing the movement ability of the tray.

[0050] The X-shaped structure of the side scissors 617 is connected by the pin shaft 621, allowing the side scissors to rotate around the pin shaft, providing stable adjustment capability in the up-down direction of the tray. During the battery replacement process, when the tray moves up and down, the pin shaft 621 allows the side scissors assembly to automatically adjust according to the height change of the tray, maintaining the balance and stability of the tray.

[0051] Referring to Figure 7 In one possible implementation, the locking and unlocking mechanism further includes a drag chain 622 arranged between the tray 61 and the second layer frame 62 for laying cables of the motor and switch device. The drag chain 622 is provided with a channel 623 for laying and protecting the cables, to ensure the safety and reliability of the cables during the movement of the tray.

[0052] The drag chain 622 connects the tray 61 and the second layer frame 62 through its flexible design, and the channel 623 is used to accommodate the cables of the motor and switch device. During the movement of the battery tray, the drag chain 622 stretches and contracts with the movement of the tray, ensuring that the cables are not damaged or broken due to the movement of the tray. At the same time, the channel 623 provides good protection for the cables, preventing damage to the cables from the external environment.

[0053] In one possible implementation, a method suitable for charging different specifications of electric vehicle batteries applies any one of the electric vehicle battery replacement systems. The method includes the following steps:

[0054] Controlling the movement of the feeding battery to the interlayer or layer of the battery rack, and controlling the large battery positioning shaft or the small battery positioning shaft to position the feeding battery according to the model of the feeding battery.

[0055] Controlling the Z-direction lock head, the Y-direction lock head, and the X-Y direction lock head to lock the feeding battery.

[0056] In the above embodiment, the positioning device in the electric vehicle battery replacement system first ensures the precise positioning of the feed battery on the battery rack. Next, the battery is multi-directionally locked by controlling the Z, Y, and XY locking knobs to ensure stability during charging. Finally, depending on the battery model, the water and electricity connectors are aligned and docked with the battery charging port to complete the charging operation.

[0057] This method achieves precise positioning and charging docking of batteries of different specifications through automated control, effectively reducing manual operation errors and time, improving charging efficiency and the intelligence of the system. Furthermore, the multi-directional locking design ensures the safety of the charging process and reduces the risk of charging failures caused by vibration or unstable connections.

[0058] Other embodiments of the present invention are as follows:

[0059] 1. Battery rack

[0060] 1. The battery rack is equipped with two battery positioning devices. The position of different batteries is adjusted by the stacker, so that the batteries are placed on two positioning shafts. The positioning shafts are installed on the battery rack by screws, so that the battery rack can be compatible with both large and small batteries and can charge the batteries. Figure 1 .

[0061] 2. Lock and unlock

[0062] 1. The locking and unlocking mechanism can adapt to batteries of different sizes. The locking and unlocking lock is pushed by the electric cylinder to move, so that locking and unlocking operations can be performed for batteries of different sizes. When removing and installing a small battery, the locking and unlocking connector moves inward under the push of the electric cylinder. When removing and installing a large battery, the locking and unlocking connector moves toward the outer edge. An electric cylinder is installed on the back side of the locking and unlocking layer plate to drive the guide slider mechanism, which is connected to the locking and unlocking lock through a push plate. It is suitable for loading and unloading batteries of different sizes separately. At the same time, four electromagnets are arranged to ensure that the locking and unlocking top layer plate will not shift during operation. At the same time, in order to realize the removal and installation of large batteries, the two corner locks move in the "L" direction (XY direction), and two layers of electric cylinders are arranged to push and control their movement in two directions and reach the specified position. Figure 2 .

[0063] When locking and unlocking the lock, the lock moves to a position suitable for the corresponding battery and is lifted by the electric cylinder. The four middle locks are lifted at the same time by the electric cylinder connected to the Z-direction lifting plate, saving internal space for locking and unlocking. Then the 12 locks perform the locking and unlocking operation.

[0064] 2. The four locking and unlocking heads are connected through an "I"-shaped Z-direction lifting plate. The Z-direction lifting plate determines the Z-direction movement direction through two guide shafts and is connected to the top plate through the electric cylinder and the electric cylinder mounting base. The electric cylinder is used to realize the lifting of the four locking and unlocking heads. Figure 5 .

[0065] Finally, it should be noted that the various embodiments described in the specification are intended to be progressive, and each successive embodiment is intended to be an improvement over the previous embodiment, with the differences between the various embodiments being the focus of each embodiment.

[0066] The above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application; although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific implementation of the present application can be modified or some technical features can be replaced equivalently without departing from the spirit of the technical solutions of the present application, and all of them should be included in the technical solutions of the present application.

Claims

1. A locking and unlocking mechanism for an electric vehicle battery replacement system, characterized in that, the locking and unlocking mechanism (6) is arranged on a battery tray, which comprises a plate (61) and a shelf (62), and the plate (61) is installed above the shelf (62); the locking and unlocking mechanism (6) comprises a Z-direction lock head (63), a Y-direction lock head (64), and an X-Y-direction lock head (65) passing through the plate (61); wherein the Z-direction lock head (63) is installed on a Z-direction lifting plate (66) in the shape of an I-beam on the back of the plate (61), a cylinder V (67) is installed on the back of the plate (61) through a cylinder mounting seat (671), the output shaft of the cylinder V (67) is connected with the Z-direction lifting plate (66), driving the Z-direction lifting plate (66) and the Z-direction lock head (63) thereon to move up and down along a direction perpendicular to the plane of the plate (61); a guide shaft (68) is arranged on the Z-direction lifting plate (66) and passes through the plate (61), and the Z-direction lifting plate (66) and the Z-direction lock head (63) thereon move up and down along the guide shaft (68); the back of the plate (61) is provided with a cylinder III (69), a guide rail III (610), a cylinder IV (611), and a guide rail IV (612), the output shaft of the cylinder IV (611) is connected with the X-Y-direction lock head (65), the X-Y-direction lock head (65) is connected with the guide rail IV (612) and can slide along the guide rail IV (612) under the push of the cylinder IV (611); the output shaft of the cylinder III (69) is connected with the guide rail IV (612), the guide rail IV (612) is installed on the guide rail III (610) and can slide along the guide rail III (610) under the push of the cylinder III (69), and the guide rail IV (612) is perpendicular to the guide rail III (610); the back of the plate (61) is provided with a cylinder VIII (613), a guide rail VIII (614), and a Y-direction push plate (615), the Y-direction lock head (64) is connected with the guide rail VIII (614) through the Y-direction push plate (615), and the output shaft of the cylinder VIII (613) is connected with the Y-direction push plate (615) and can push the Y-direction push plate (615) and the Y-direction lock head (64) connected therewith to slide along the guide rail VIII (614).

2. The lock and unlock mechanism of the electric vehicle battery replacement system according to claim 1, wherein, The Z-direction lock head (63) is four, which are respectively arranged on four endpoints of the Z-direction lifting plate (66) in the shape of an I-beam; the plate (61) and the shelf (62) are connected by magnetic attraction through electromagnets (616), and the electromagnets (616) are provided with four.

3. The lock and unlock mechanism of the electric vehicle battery replacement system according to claim 2, wherein, A group of side scissors assemblies are arranged between the plate (61) and the shelf (62), and each side scissors assembly comprises two side scissors (617), two fixed seats (618), two sliding seats (619), and two guide rails VII (620); the two side scissors (617) are X-shaped, and the same ends of the two side scissors (617) are respectively installed on the plate (61) and the shelf (62) through the fixed seats (618); the other ends of the two side scissors (617) are respectively installed on the two guide rails VII (620) through the sliding seats (619); and the two guide rails VII (620) are respectively installed on the plate (61) and the shelf (62).

4. The lock and unlock mechanism of the electric vehicle battery replacement system according to claim 3, wherein, The side scissors assemblies are arranged in two groups and are arranged in parallel on opposite sides of the first layer plate (61) and the second layer frame (62).

5. The battery exchange system for electric vehicles according to claim 4, wherein The X centers of the two side scissors (617) are connected by a pin shaft (621).

6. The battery swapping system for electric vehicle as claimed in claim 5, wherein, Further comprising: A drag chain (622) is arranged between the first layer plate (61) and the second layer frame (62), and the drag chain (622) has a channel (623) in which the cables of the motor and switch device are arranged.

7. An electric vehicle battery swap system comprising the electric vehicle battery swap system unlocking and locking mechanism of any one of claims 1-6, characterized in that, Further comprising: The battery rack (1) is a multi-layer structure; the unlocking mechanism (6) for the battery replacement system of the electric vehicle is arranged between the layers of the battery rack (1).

8. The electric vehicle swap battery system of claim 7, wherein, Further comprising: A plurality of battery positioning devices are arranged on each layer of the battery rack, and a battery cushion block is arranged on each layer of the battery rack; The battery positioning device comprises a large battery positioning shaft (21) and a small battery positioning shaft (22), and the large battery positioning shaft (21) and the small battery positioning shaft (22) are installed on the battery rack (1) and are adapted to large batteries (11) and small batteries (12) of different sizes or specifications, respectively; The battery cushion block (3) is installed on the battery rack (1) and is arranged correspondingly to the battery positioning device, and is used for supporting the large battery or the small battery.

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