Flexible plug assembly of battery compartment of battery replacement system of electric vehicle and charging system

Abstract

The utility model relates to a flexible plug assembly for a battery compartment of a battery replacing system of an electric vehicle. The flexible plug assembly comprises a charging head, a mounting plate, a guide column, a pressing plate, a shaft sleeve, a blocking pad, a cotter pin and a spring, the charging head is connected with a charging interface of a charged object and is mounted on one side of the mounting plate, and the other side of the mounting plate is provided with a slotted hole for accommodating the mounting head at one end of the guide post; a mounting head at one end of the guide column is arranged in a slotted hole of the mounting plate, the other end of the guide column penetrates through the shaft sleeve and then is sleeved with a blocking pad, and a cotter pin is arranged at the outer end of the blocking pad and prevents the guide column from falling off from the blocking pad; the pressing plate is connected with the mounting plate; mounting heads of the limiting guide columns are arranged in slotted holes of the mounting plate; the shaft sleeve is installed on the charging plug seat. And the spring is sleeved outside the guide post and is arranged between the pressing plate and the shaft sleeve. According to the utility model, the pre-tightening force is provided when the charging plug is matched, and the problem of inaccurate battery connection and positioning of an electric vehicle battery replacement system in the prior art is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of electric vehicle battery replacement, and in particular, relates to a battery compartment flexible plug assembly and a charging system for an electric vehicle battery replacement system. Background Art

[0002] In the current development of the new energy industry, battery swapping devices are an important part of improving the convenience of electric vehicles. Especially in the passenger car market, two mainstream battery swapping methods have emerged: chassis battery swapping and front-end battery swapping. As a relatively mature technology, chassis battery swapping has been widely used. However, the existing battery swapping methods, whether chassis battery swapping or front-end battery swapping, all use a similar mechanism: mechanical docking between the charging plug driven by the power element and the battery interface.

[0003] This prior art has several obvious problems and limitations. First, the mechanical positioning of the battery must be extremely accurate, which is the key to ensuring that the charging plug can be accurately inserted into the battery. Any positioning error may cause the plug to fail to dock correctly, which may result in a false connection, affecting charging efficiency and safety. In addition, especially in the front-end battery replacement method, the battery is pushed into the battery rack for too long, which may also lead to the risk of the charging connector being squeezed and damaged. These problems not only increase the complexity of the operation, but also increase the difficulty and cost of equipment maintenance.

[0004] Therefore, although the existing battery swap technology provides convenience for charging electric vehicles, its mechanical docking method still has many areas that need to be improved. These technical obstacles urgently need to be solved through more advanced settings and technological innovations to improve the overall efficiency and reliability of the battery swap system. Utility Model Content

[0005] In view of the deficiencies existing in the related technologies, the utility model provides a flexible plug assembly for the battery compartment of an electric vehicle battery replacement system, which solves the technical problem of inaccurate battery connection positioning in the electric vehicle battery replacement system.

[0006] On the one hand, the present application provides a flexible plug assembly for the battery compartment of an electric vehicle battery replacement system, including: a charging head, a mounting plate, a guide column, a pressure plate, a sleeve, a stopper, a cotter pin and a plug spring. The charging head is connected to the charging interface of the object to be charged and is installed on one side of the mounting plate, while the other side of the mounting plate is provided with a slot hole for accommodating the mounting head at one end of the guide column. The mounting head at one end of the guide column is placed in the slot hole of the mounting plate, and the other end of the guide column is passed through the sleeve and then a stopper is sleeved, and a cotter pin is provided at the outer end of the stopper, and the cotter pin prevents the guide column from falling off the stopper. The pressure plate is connected to the mounting plate, and the mounting head of the limiting guide column is in the slot hole of the mounting plate. The sleeve is installed on the charging plug socket. The plug spring is sleeved outside the guide column and is placed between the pressure plate and the sleeve.

[0007] In a possible implementation, the guide post can slide along the shaft sleeve.

[0008] In a possible implementation manner, the mounting head at one end of the guide column has a ball head, and the ball head can rotate in a ball socket on the mounting plate.

[0009] In a possible implementation, two guide posts are provided, which are provided on two sides relative to the charging head.

[0010] In a possible implementation, a gap is provided between the pressure plate and the guide column to adjust the deflectable angle of the charging head.

[0011] On the other hand, the present application provides an automatic charging system for the battery compartment of an electric vehicle battery exchange system, including any of the above-mentioned flexible plug assemblies for the battery compartment of an electric vehicle battery exchange system, and also includes an automatic anti-recognition device, the automatic anti-recognition device including: a baffle, a first connecting rod, a second connecting rod, a pressure wheel, a anti-recognition spring and a anti-recognition seat; wherein, one end of the baffle is connected to the anti-recognition seat through a pin shaft, and the other end is connected to the first connecting rod; the baffle is not connected to the other end of the anti-recognition seat, and a anti-recognition spring is provided below, and the anti-recognition spring is installed on the anti-recognition seat below the baffle, and the baffle is lifted under the action of the anti-recognition spring; one end of the first connecting rod is connected to the second connecting rod through a pin shaft, and the other end is connected to the middle part of the second connecting rod through a pin shaft; the pressure wheel is connected to one end of the second connecting rod, and the other end of the second connecting rod is installed on the anti-recognition seat through a pin shaft; when the pressure wheel rotates along the pin shaft connected to the anti-recognition seat, it drives the second connecting rod and the first connecting rod to move, and drives the baffle connected to the first connecting rod to be pressed together.

[0012] In a possible implementation, it also includes an electric push rod III, which is arranged corresponding to the automatic anti-retraction device of the battery compartment of the electric vehicle battery replacement system. The electric push rod is controlled to push the pressure wheel, and the forward pushing action of the pressure wheel drives the movement of the first connecting rod and the second connecting rod, so that the baffle is pressed and flush with the moving plane of the object, allowing the object to pass over the baffle.

[0013] It also includes: a positioning device, which is installed at the rear end of the battery compartment and is set corresponding to the battery to guide the battery to connect to the charging head.

[0014] Based on the above technical scheme, the flexible plug assembly of the battery compartment of the electric vehicle battery replacement system of the present invention realizes efficient connection and rapid positioning during the battery replacement process of the electric vehicle by combining the structure of the charging head, guide column, pressure plate, bushing, stopper, cotter pin and plug spring; by setting the guide column to slide along the bushing and setting the ball head at the end of the guide column, the charging head can adapt to deviations of different angles when connected, thereby improving the connection flexibility and reliability of the plug assembly; in addition, the setting of the pressure plate allows the offset angle of the charging head to be optimized by adjusting the gap, further enhancing the adaptability and stability of the entire system, and solving the problems of low battery connection efficiency and inaccurate positioning of the electric vehicle battery replacement system in the prior art. 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 the present 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 on the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of an automatic anti-retraction device for a battery compartment of an electric vehicle battery replacement system according to one embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an automatic charging system for a battery compartment of an electric vehicle battery replacement system according to one embodiment of the utility model;

[0018] Figure 3 This is a cross-sectional view of the structure of a flexible plug assembly of a battery compartment of an electric vehicle battery replacement system according to one embodiment of the utility model;

[0019] Figure 3a It is an enlarged schematic diagram of the connection position between the pressure plate and the guide column;

[0020] Figure 4 This is an axonometric view of a flexible plug assembly in a battery compartment of an electric vehicle battery replacement system according to one embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of battery charging docking of an automatic charging system for a battery compartment of an electric vehicle battery replacement system according to one embodiment of the utility model.

[0022] In the figure:

[0023] 21. Automatic stop device; 28. Electric push rod; 30. Object;

[0024] 21.1, blocking piece; 21.2, first connecting rod; 21.3, second connecting rod; 21.4, pressure wheel; 21.5, anti-retraction spring; 21.6, anti-retraction seat;

[0025] 24. Positioning device; 25. Flexible plug assembly; 301. Battery; 302. Battery compartment;

[0026] 25.1, charging head; 25.2, plug spring; 25.3, charging plug socket; 25.4, stopper; 25.5, cotter pin; 25.6, bushing; 25.7, guide column; 25.8, pressure plate; 25.9, mounting plate. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] In order to solve the technical problem of inaccurate battery connection positioning in electric vehicle battery replacement systems in the prior art, the present application provides a battery compartment flexible plug assembly and a charging system for an electric vehicle battery replacement system.

[0032] See also Figure 3 , Figure 4 and Figure 5In a possible implementation, the battery compartment flexible plug assembly of the electric vehicle battery replacement system includes: a charging head 25.1, connected to the charging interface of the charged object; a mounting plate 25.9, the charging head 25.1 is mounted on one side of the mounting plate 25.9, and a slot hole for accommodating the mounting head at one end of the guide column 25.7 is arranged on the other side of the mounting plate 25.9; the mounting head at one end of the guide column 25.7 is placed in the slot hole of the mounting plate 25.9; a pressure plate 25.8 is connected to the mounting plate 25.9, and a limit guide The mounting head of the column 25.7 is in the slot of the mounting plate 25.9; the other end of the guide column 25.7 passes through the shaft sleeve 25.6 and is sleeved with a stopper 25.4, and the guide column 25.7 is provided with a cotter pin 25.5 at the outer end of the stopper 25.4, and the cotter pin 25.5 prevents the guide column 25.7 from falling off from the stopper 25.4; the shaft sleeve 25.6 is installed on the charging plug socket 25.3; the plug spring 25.2 is sleeved outside the guide column 25.7 and placed between the pressure plate 25.8 and the shaft sleeve 25.6.

[0033] In this embodiment, the charging head 25.1 is fixed by the mounting plate 25.9 to ensure a stable connection with the interface of the charged object. The guide column 25.7 is combined with the slot of the mounting plate 25.9 through the pressure plate 25.8, providing the necessary guiding and supporting functions to ensure the stability and reliability of the entire plug assembly during use. The plug spring 25.2 provides the necessary tension to keep the guide column 25.7 in the appropriate position, while allowing a certain degree of elastic adjustment to adapt to different installation and operating conditions.

[0034] This embodiment improves the operational flexibility and durability of the plug assembly by integrating the guide column 25.7 and the plug spring 25.2. The cotter pin 25.5 prevents the guide column 25.7 from falling off under severe operating conditions, ensuring the safety and reliability of the system. In addition, the structural setting of the entire assembly optimizes the stability of the electrical connection, reduces maintenance costs, and improves ease of use.

[0035] In a possible implementation, the guide post 25.7 can slide along the shaft sleeve 25.6.

[0036] The sliding ability of the guide column 25.7 inside the sleeve 25.6 allows the plug assembly to adapt to different installation angles and positions. If there is a slight deviation when the battery is stored, but the positioning mechanism has not yet taken effect, the flexible plug assembly is used to compensate for the error and allow the charging plug to dock with the battery plug; this improves the adaptability and user-friendliness of the plug assembly, especially in emergency or non-standard battery replacement operations, and can effectively reduce the difficulty and time of operation.

[0037] In a possible embodiment, the mounting head at one end of the guide column 25.7 has a ball head, and the ball head can rotate in a ball socket on the mounting plate 25.9.

[0038] The setting of the ball head allows one end of the guide column 25.7 to rotate in multiple directions on the mounting plate 25.9, which increases the flexibility during connection and enables the plug to be more easily aligned and connected to the charging port of the battery compartment; it reduces the mechanical stress caused by installation errors, thereby extending the service life of the plug assembly.

[0039] In a possible implementation, two guide columns 25.7 are provided, which are provided on both sides relative to the charging head 25.1.

[0040] Two guide posts 25.7 are used, located on either side of the charging head 25.1, to provide better balance and support for the plug assembly; this helps to evenly distribute the mechanical load from the battery compartment to the charging head, thereby improving overall stability and reliability.

[0041] In a possible implementation, a gap is provided between the pressure plate 25.8 and the column 25.7, such as Figure 3a As shown in position a, adjust the offset angle of the charging head.

[0042] The gap is set to allow the ball head connected to the guide column 25.7 to rotate in the ball socket, so that the charging head 25.1 can adjust its angle as needed during the connection process to better align with the charging interface of the battery compartment. The gap formed by the drilled hole on the pressure plate 25.8 and the guide column 25.7 is the range within which the guide column can be offset; the adjustable setting significantly improves the docking flexibility of the charging head and reduces the risk of physical damage caused by improper docking, especially in the automatic battery replacement system, thereby improving the efficiency and safety of operation.

[0043] See also Figure 1 The present application also provides an automatic charging system for a battery compartment of an electric vehicle battery replacement system, including a flexible plug assembly for a battery compartment of an electric vehicle battery replacement system according to any of the above embodiments, and further including: an automatic anti-retraction device 21; wherein the automatic anti-retraction device 21 includes: a baffle 21.1, a first connecting rod 21.2, a second connecting rod 21.3, a pressure wheel 21.4, an anti-retraction spring 21.5 and an anti-retraction seat 21.6; wherein one end of the baffle 21.1 is connected to the anti-retraction seat 21.6 through a pin shaft, and the other end is connected to the first connecting rod 21.2; the baffle 21.1 is not connected to the other end of the anti-retraction seat 21.6, and an anti-retraction spring 21.5 is provided below, and the anti-retraction spring 21.5 is installed on the anti-retraction seat 21.6 below the baffle 21.1, and the baffle 21.1 is lifted under the action of the anti-retraction spring 21.5. One end of the first connecting rod 21.2 is connected to the second connecting rod 21.3 through a pin shaft, and the other end is connected to the middle part of the second connecting rod through a pin shaft. The pressing wheel is connected to one end of the second connecting rod, and the other end of the second connecting rod is installed on the stop seat through a pin shaft. When the pressing wheel rotates along the pin shaft connected to the stop seat, the second connecting rod and the first connecting rod are driven to move, and the baffle connected to the first connecting rod is driven to press together.

[0044] Baffle 21.1: It is automatically lifted up after the battery passes through to prevent the battery from moving backward.

[0045] The first connecting rod 21.2 and the second connecting rod 21.3 transmit the power of the pressing wheel 21.4 to control the lifting and pressing of the baffle.

[0046] Pressure wheel 21.4: receives external force such as the push of electric push rod III, and converts the force into movement of the baffle.

[0047] Stop spring 21.5: provides restoring force for the baffle to ensure that it can automatically return to the initial position when no external force is applied, thereby increasing the response speed and reliability of the system.

[0048] During operation, the pressing wheel 21.4 is pushed manually or by the electric push rod III 28, and the pressing wheel rotates to drive the second connecting rod 21.3, and then pushes the first connecting rod 21.2, and finally the blocking piece 21.1 moves from the stop seat 21.6 to the pressing position. After the battery passes through the blocking piece 21.1, the blocking piece can automatically lift up to prevent the battery from retreating.

[0049] In the above scheme, the automatic anti-retraction device of the battery compartment of the electric vehicle battery replacement system adopts a complex mechanical linkage system to achieve efficient and safe battery positioning and prevent the battery from accidentally moving. The baffle 21.1 is mechanically connected to the anti-retraction seat 21.6 and connected to the pressure wheel 21.4 through the first connecting rod 21.2, allowing it to move when the pressure wheel is subjected to external driving force, and automatically return to the initial blocking position by the restoring force provided by the anti-retraction spring 21.5 without external force. This setting ensures that the baffle can be lifted immediately after the battery passes through to prevent the battery from retreating, improves the convenience and efficiency of operation, and ensures safety and reliability during operation.

[0050] In a possible implementation, the device is installed behind the object 30 when it is moving. When the baffle 21.1 is pressed, the plane of the baffle after pressing is flush with the moving plane of the object 30, and the object moves along the pressing direction.

[0051] By adjusting the lifting and pressing of the baffle 21.1, the smoothness and safety of the battery replacement process is ensured, while the intervention of the operator is reduced and the automation level of the entire system is improved.

[0052] In a possible implementation, after the object 30 passes through, the blocking piece 21.1 is bounced up by the stop spring 21.5 to prevent the object from retreating, so that the blocking piece prevents the object from retreating.

[0053] When an object 30, such as a battery or other related components, passes through the baffle 21.1, the baffle will automatically rise due to the action of the stop spring 21.5 to prevent the object 30 from moving in the opposite direction. This automatic rebound mechanism ensures that after the object passes through the baffle, it will not accidentally retreat due to any external factors such as machine vibration.

[0054] This automatic locking function enhances the safety of the electric vehicle battery replacement system, ensures the stability of the battery during charging or replacement, and prevents accidental falling off or displacement, thereby protecting the safety of operators and equipment.

[0055] In a possible implementation manner, the pressure wheel 21.4 is fixedly connected to the second connecting rod via a connecting piece.

[0056] The connection between the pressure wheel 21.4 and the second connecting rod 21.3 is achieved through a fixed connecting piece. This connection mode provides a stable and strong structure, ensuring the stability and accuracy of the transmission during the process of the pressure wheel pushing the baffle 21.1 to press together.

[0057] By using fixed connections, the mechanical strength and durability of the entire system are improved, especially in high-load and high-frequency operating environments, increasing the reliability of the equipment.

[0058] Fixed connectors can be replaced with adjustable connectors or quick-release connectors as needed to facilitate maintenance and adjustment to meet different working conditions and maintenance requirements.

[0059] In a possible implementation, the pressure wheel 21.4 is connected to the second connecting rod 21.3 via a pin.

[0060] Through the pin connection, the pressure wheel 21.4 and the second connecting rod 21.3 can achieve relative rotation. This connection mode provides a certain flexibility, allowing the pressure wheel 21.4 to automatically adjust its angle according to the position of the baffle 21.1 during the pushing process.

[0061] In one possible implementation, the object 30 is a battery.

[0062] Object 30 is a battery, and the device is used in an electric vehicle battery replacement system.

[0063] In a possible implementation, an automatic charging system for a battery compartment of an electric vehicle battery replacement system is provided. Figure 2 , including an electric push rod III28, which is arranged corresponding to the automatic anti-recoil device of the battery compartment of the electric vehicle battery replacement system, that is, the automatic anti-recoil device 21 in the figure. The electric push rod III28 is controlled to push the pressure wheel, and the forward pushing action of the pressure wheel drives the movement of the first connecting rod and the second connecting rod, so that the baffle is pressed and flush with the moving plane of the object, allowing the object to pass over the baffle.

[0064] The electric push rod III28 is controlled by the electronic control system, providing a power source so that the pressure wheel 21.4 can be pushed as needed to achieve automatic baffle pressing and releasing, simplifying the operating process and improving the response speed and accuracy of the system.

[0065] By integrating the electric push rod III28, the device improves the automation level of the battery replacement process, reduces manual operations, and improves the efficiency and safety of battery replacement.

[0066] The electric push rod III28 can be replaced with different types of electric or hydraulic drive devices as needed to adapt to different operating speed and torque requirements, or choose a more suitable drive mode according to different working environments, such as using a hydraulic system in an explosion-proof environment.

[0067] See also Figure 5 In a possible implementation, it also includes: a positioning device 24, installed at the rear end of the battery compartment 302, corresponding to the battery 301, and used to guide the battery 301 to connect to the charging head 25.1.

[0068] The beneficial effects of the battery compartment automatic charging system of the electric vehicle battery replacement system of the present application are mainly reflected in the following aspects:

[0069] Improved safety: The device automatically rises after the battery passes through an automatic baffle mechanism to prevent the battery from accidentally rolling back, significantly improving the safety of the battery replacement process. The setting to prevent the battery from rolling back reduces the risk during the operation and ensures the safety of the operator and equipment.

[0070] Convenience of operation: Through the automated control system, such as the use of the electric push rod III28 and the pressure wheel mechanism, the system can automatically adjust the position of the baffle, reducing the need for manual operation and improving the convenience and efficiency of the battery replacement operation.

[0071] Structural stability: By adopting pin connection or fixed connecting parts, the connection between the pressure wheel and the connecting rod is ensured to be firm and reliable, which increases the mechanical strength and durability of the entire device, so that the device can adapt to continuous high-frequency operation without being easily damaged.

[0072] High degree of automation: The automation setting of the entire system reduces the possibility of human operation errors, improves the operating efficiency of the battery swap station and the battery swap speed, and can significantly improve service capabilities and response speed, especially in high-demand commercial operation environments.

[0073] 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.

[0074] 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 battery compartment flexible plug assembly for an electric vehicle battery replacement system, characterized in that: include: A charging head (25.1), connected to a charging interface of a charged object; A mounting plate (25.9), the charging head (25.1) is mounted on one side of the mounting plate (25.9), and a slot hole for accommodating the mounting head at one end of the guide column (25.7) is provided on the other side of the mounting plate (25.9); The mounting head at one end of the guide column (25.7) is placed in the slot of the mounting plate (25.9); The pressing plate (25.8) is connected to the mounting plate (25.9), and the mounting head of the limiting guide column (25.7) is in the slot hole of the mounting plate (25.9); The other end of the guide column (25.7) passes through the shaft sleeve (25.6) and is sleeved with a stopper (25.4). The guide column (25.7) is provided with a split pin (25.5) at the outer end of the stopper (25.4). The split pin (25.5) prevents the guide column (25.7) from falling off the stopper (25.4). The shaft sleeve (25.6) is mounted on the charging plug socket (25.3); The plug spring (25.2) is sleeved outside the guide column (25.7) and is placed between the pressure plate (25.8) and the shaft sleeve (25.6).

2. The battery compartment flexible plug assembly of the electric vehicle battery replacement system according to claim 1 is characterized in that: The guide post (25.7) can slide inside the shaft sleeve (25.6).

3. The battery compartment flexible plug assembly of the electric vehicle battery replacement system according to claim 2 is characterized in that: The mounting head at one end of the guide column (25.7) has a ball head which can rotate in a ball socket on the mounting plate (25.9).

4. The battery compartment flexible plug assembly of the electric vehicle battery replacement system according to claim 3 is characterized in that: Two guide posts (25.7) are provided, and are arranged on two sides relative to the charging head (25.1).

5. The battery compartment flexible plug assembly of the electric vehicle battery replacement system according to claim 4, characterized in that: A gap is provided between the pressing plate (25.8) and the guide column (25.7) to adjust the deflectable angle of the charging head.

6. An automatic charging system for battery compartment of an electric vehicle battery replacement system, characterized in that: The flexible plug assembly of the battery compartment of the electric vehicle battery replacement system according to any one of claims 1 to 5 further comprises an automatic anti-retraction device (21), the automatic anti-retraction device comprises: a baffle (21.1), a first connecting rod (21.2), a second connecting rod (21.3), a pressure wheel (21.4), an anti-retraction spring (21.5) and an anti-retraction seat (21.6), wherein: One end of the baffle (21.1) is connected to the stop seat (21.6) through a pin shaft, and the other end is connected to the first connecting rod (21.2); the other end of the baffle (21.1) is not connected to the stop seat (21.6), and a stop spring (21.5) is provided below the baffle (21.1), and the stop spring (21.5) is installed on the stop seat (21.6) below the baffle (21.1), and the baffle (21.1) is lifted under the action of the stop spring (21.5); One end of the first connecting rod (21.2) is connected to the second connecting rod (21.3) through a pin, and the other end is connected to the middle part of the second connecting rod (21.3) through a pin; The pressure wheel (21.4) is connected to one end of the second connecting rod (21.3), and the other end of the second connecting rod (21.3) is installed on the stop seat (21.6) through a pin shaft; When the pressing wheel (21.4) rotates along the pin shaft connected to the stop seat (21.6), it drives the second connecting rod (21.3) and the first connecting rod (21.2) to move, and drives the blocking piece (21.1) connected to the first connecting rod (21.2) to be pressed together.

7. The automatic charging system for battery compartment of an electric vehicle battery replacement system according to claim 6 is characterized in that: Also includes: The electric push rod III (28) is arranged corresponding to the automatic anti-retraction device of the battery compartment of the electric vehicle battery replacement system. The electric push rod (2) is controlled to push the pressure wheel (21.4), and the forward pushing action of the pressure wheel (21.4) drives the movement of the first connecting rod (21.2) and the second connecting rod (21.3), so that the blocking plate (21.1) is pressed and aligned with the moving plane of the object (30), allowing the object (30) to pass over the blocking plate (21.1).

8. The automatic charging system for battery compartment of an electric vehicle battery replacement system according to claim 7, characterized in that: Also includes: The positioning device (24) is installed at the rear end of the battery compartment (302) and is arranged corresponding to the battery (301) and is used to guide the battery (301) to connect to the charging head (25.1).

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