Quick-change collet control device for back type battery box of pure electric heavy truck

Abstract

The utility model provides a quick-change collet control device for a back type battery box of a pure electric heavy truck, which comprises a collet frame, a battery collet assembly and a cylinder control component, the collet frame is mounted on the lower end face of the battery collet assembly, and the cylinder control component comprises a cylinder mounting rack, a compression cylinder and a spring bolt. The air cylinder installation frame is installed on the upper end face of the battery bottom support assembly, the compression air cylinder is installed on the air cylinder installation frame, and the telescopic end of the compression air cylinder is connected with the spring bolt through the spring. According to the battery replacing collet electrical device, the battery replacing collet electrical device can be controlled through a manual button in a one-key mode, so that locking and unlocking of the battery replacing collet and the battery box are achieved, the battery box can be safely and rapidly replaced, and the battery replacing efficiency is improved. And the connection reliability of the battery bottom support and the battery box can be monitored in real time, so that the connection reliability of the battery bottom support and the battery box is ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery swapping technology, and in particular to a quick-change bottom tray control device for a rear battery box of a pure electric heavy truck. Background Technology

[0002] Entering the 21st century, with continuous technological advancements and increasing international market demand, China's new energy vehicle industry began a phase of rapid development. The 2010s were a golden age for the industry's rapid growth. Leading domestic companies actively invested in research and development, launching a series of competitive new energy vehicle products. With increasing market demand and improved technology, China's new energy vehicle industry has secured a significant position in the global market, and its industrial chain has largely taken shape. From upstream battery material supply to downstream vehicle manufacturing, numerous companies participate in each segment, demonstrating strong competitiveness in the international market. In recent years, with the introduction of the "dual-carbon" target, China's new energy vehicle industry has ushered in new development opportunities. The government has continuously increased policy support for new energy vehicles, promoting their development towards intelligence and connectivity. Simultaneously, the construction of charging infrastructure has accelerated, significantly improving the ease of use of new energy vehicles. Under the guidance of government policies, China's new energy vehicle industry has experienced the entire process from its initial stage to rapid development. In the future, with continuous technological breakthroughs and further market maturity, China's new energy vehicle industry will continue to maintain strong growth momentum. However, since the emergence of electric vehicles, two distinct energy replenishment models have emerged—charging and battery swapping.

[0003] After setbacks in the passenger vehicle market, battery swapping is experiencing rapid growth in the new energy heavy-duty truck market, with penetration increasing from 0.2% in 2020 to 3.7% in 2022. The biggest challenge for battery swapping – the lack of standardized regulations – is gradually being addressed in the battery swapping heavy-duty truck sector, driven by industry alliances. In numerous closed scenarios, such as steel mills, power plants, mines, ports, and short-distance transport, battery swapping heavy-duty trucks demonstrate significantly better economic efficiency than diesel trucks due to their low cost and rapid refueling capabilities. Furthermore, while diesel heavy-duty trucks account for only 3% of the total vehicle fleet, they contribute approximately 40% of CO2 emissions. This means that the potential for carbon reduction in heavy-duty trucks is far greater than in passenger vehicles. Driven by the 2030 plan, carbon reduction in heavy-duty trucks is imperative, presenting both opportunities and challenges for battery swapping heavy-duty trucks.

[0004] However, improving battery swapping efficiency has always been a challenge that major OEMs and energy storage companies need to continuously refine. Against this backdrop, a new, fast, safe, and reliable quick-swap base control device for the rear-mounted battery box of pure electric heavy-duty trucks is required. This aims to address the key challenges and pain points related to battery swapping efficiency, thereby improving the efficiency of battery swapping for pure electric heavy-duty trucks. Summary of the Invention

[0005] This utility model provides a quick-change base tray control device for the rear battery box of a pure electric heavy truck, which solves the problems of long battery replacement time, high labor intensity, and low positioning accuracy of the battery base tray and battery box in the existing technology. It realizes the locking and opening of the battery replacement base tray and battery box, and can replace the battery box safely and quickly, thereby improving the efficiency of battery replacement.

[0006] This utility model provides a quick-change base tray control device for a rear-mounted battery box of a pure electric heavy truck, including a base tray frame, a battery base tray assembly and a cylinder control component.

[0007] The base frame is mounted on the lower end face of the battery base assembly;

[0008] The cylinder control assembly includes a cylinder mounting bracket, a compression cylinder, and a locking tongue. The cylinder mounting bracket is mounted on the upper surface of the battery base assembly.

[0009] The compression cylinder is mounted on a cylinder mounting bracket, and the telescopic end of the compression cylinder is connected to a locking tongue via a spring.

[0010] Preferably, it also includes a gas source line and a power supply line, which are installed below the base frame and are respectively connected to an external gas source and a power supply.

[0011] Preferably, a solenoid valve and a control switch are also installed on the outer wall of the battery base assembly. The control switch is connected to the solenoid valve, the solenoid valve is connected to the gas source line, and the control switch is connected to the power supply line.

[0012] Preferably, the compression cylinder is also connected to an air source line.

[0013] Preferably, it also includes a position sensor, which is mounted on the compression cylinder.

[0014] Preferably, the position sensor is connected to an external battery swapping controller. Beneficial effects

[0015] (1) The present invention has a novel structural design and a high degree of automation. When the operator uses the hoisting equipment to lift the rear battery box of the pure electric heavy truck, the operator can control the battery swapping base electrical device with a manual button, thereby realizing the locking and opening of the battery swapping base and the battery box. The battery box can be replaced safely and quickly, thereby improving the battery swapping efficiency.

[0016] (2) This utility model can monitor the connection reliability between the battery base and the battery box in real time during vehicle driving and battery swapping, thereby greatly ensuring the safety of the vehicle battery swapping system.

[0017] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the control principle of this utility model;

[0021] Explanation of reference numerals in the attached drawings: 1. Base frame; 2. Battery base assembly; 3. Cylinder mounting bracket; 4. Compressed cylinder; 5. Locking tongue; 6. Air supply line; 7. Power supply line; 8. Solenoid valve; 9. Control switch; 10. Position sensor. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this invention are intended to cover non-exclusive inclusion.

[0024] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. For example, in the description of this utility model, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the descriptions of directions such as the X direction, Y direction, and Z direction used to explain the operation and construction of the components in this embodiment are not absolute but relative. Although these directions are appropriate when the components are in the positions shown in the figure, they should be interpreted differently when these positions change.

[0027] Furthermore, the terms "first," "second," etc., in the specification, claims, or drawings of this utility model are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by fasteners, such as screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] Please see Figures 1-2 This utility model discloses a quick-change bottom support control device for a rear-mounted battery box of a pure electric heavy truck, including a bottom support frame 1, a battery bottom support assembly 2 and a cylinder control component.

[0031] The base frame 1 is mounted on the lower end face of the battery base assembly 2;

[0032] The cylinder control assembly includes a cylinder mounting bracket 3, a compression cylinder 4, and a locking tongue 5. The cylinder mounting bracket 3 is mounted on the upper surface of the battery base assembly 2.

[0033] The compression cylinder 4 is mounted on the cylinder mounting bracket 3, and the telescopic end of the compression cylinder 4 is connected to the locking tongue 5 by a spring.

[0034] This utility model also includes an air source line 6 and a power supply line 7, which are installed below the base frame 1 and are respectively connected to an external air source and a power supply.

[0035] In this utility model, a solenoid valve 8 and a control switch 9 are also installed on the outer side wall of the battery base assembly 2. The control switch 9 is connected to the solenoid valve 8, the solenoid valve 8 is connected to the air source line 6, and the control switch 9 is connected to the power supply line 7; the compressed air cylinder 4 is also connected to the air source line 6.

[0036] This invention also includes a position sensor 10, which is installed on the compression cylinder 4 and connected to an external battery swapping controller. During vehicle operation, the position sensor on the cylinder monitors the position of the latch in real time and feeds it back to the battery swapping controller, thereby ensuring vehicle safety. Conversely, removing the battery box only requires pressing the control switch of the solenoid valve; after the latch retracts, the battery box can be lifted from directly above using a lifting device.

[0037] Working Principle: After the battery base assembly is assembled with the vehicle via the base frame, the air / power supply is connected. Pressing the solenoid valve control switch compresses the cylinder spring under the action of the air supply, retracting the connecting latch into the cylinder. This allows the battery pack assembly to be smoothly lifted onto the base from directly above. Once the battery pack assembly is in the predetermined position, releasing the solenoid valve control switch pushes the spring and the connecting latch back to their initial position, thus securing the battery pack. During vehicle operation, the position sensor on the cylinder monitors the latch position in real time and provides feedback to the battery swapping controller, ensuring vehicle safety during operation. Conversely, removing the battery pack only requires pressing the solenoid valve control switch; after the latch retracts, a lifting device can be used to lift the battery pack from directly above.

[0038] In summary, this utility model features a novel structural design and a high degree of automation. When operators use hoisting equipment to lift the rear-mounted battery box of the pure electric heavy truck, they can manually control the electrical device of the battery swapping base with a single button, thereby locking and unlocking the battery swapping base and the battery box. This allows for safe and quick battery box replacement, thus significantly improving battery swapping efficiency. Furthermore, this utility model can monitor the connection reliability between the battery base and the battery box in real time during vehicle operation and battery swapping, thereby greatly ensuring the safety of the vehicle battery swapping system.

[0039] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-change base tray control device for a rear-mounted battery box of a pure electric heavy-duty truck, characterized in that, Includes a base frame (1), a battery base assembly (2), and a cylinder control assembly; The base frame (1) is installed on the lower end face of the battery base assembly (2); The cylinder control assembly includes a cylinder mounting bracket (3), a compression cylinder (4), and a locking tongue (5). The cylinder mounting bracket (3) is mounted on the upper surface of the battery base assembly (2). The compression cylinder (4) is mounted on the cylinder mounting bracket (3), and the telescopic end of the compression cylinder (4) is connected to the locking tongue (5) by a spring; It also includes an air source line (6) and a power supply line (7), which are installed below the base frame (1) and are connected to an external air source and power supply respectively. The outer wall of the battery base assembly (2) is also equipped with a solenoid valve (8) and a control switch (9). The control switch (9) is connected to the solenoid valve (8), the solenoid valve (8) is connected to the gas source line (6), and the control switch (9) is connected to the power supply line (7). The compressed cylinder (4) is also connected to the air source line (6); It also includes a position sensor (10) which is mounted on the compression cylinder (4); The position sensor (10) is connected to an external battery swapping controller.

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