Trailer straddle type battery pack replacement system

Abstract

The invention relates to a trailer straddle type battery pack replacement system which comprises a traction vehicle head, a trailer and a replacement device, the traction vehicle head comprises a cab, a brake system and an automobile beam, the trailer is also provided with the brake system, and the replacement system is further provided with a movable traction seat and a straddle type battery pack mounting frame. The movable traction seat is installed in the center, close to the tail, of an automobile frame, the traction vehicle head is connected with a trailer through the movable traction seat, the straddle type battery pack installation frame is installed on the automobile frame behind a traction vehicle cab in a straddle mode, and the replacing device is used when a battery is replaced. According to the straddle type battery pack replacement system, a new automobile battery replacement mode is provided, the problem of quick battery pack replacement of a pure electric trailer is solved, the straddle type battery pack mounting frame is adopted, the existing layout and structure of an automobile girder are fully utilized, the whole battery pack structure is simple and practical, replacement is quick and accurate, and the battery pack replacement efficiency is improved. Automatic control can be achieved, and the replacement efficiency is further improved.

Description

Technical Field

[0001] The present application belongs to the field of electric vehicles and relates to a trailer straddle-type battery pack replacement system. Background Art

[0002] With the rapid development of electric vehicles, intelligent battery replacement technology has become an important technical indicator for the application and development of electric vehicles. Currently on the market and in technology research and development, there are chassis bottom battery replacement technology, top battery replacement technology, and side battery replacement technology. As for the current side battery replacement technology, the battery pack is installed on the vehicle through the positioning installation methods such as the pins and blocks at the bottom of the battery pack, and is directly located on the vehicle beam. The disadvantages are high positioning accuracy requirements, high manufacturing technology requirements, high center of gravity of the battery pack, space occupation, complex replacement device, and slow replacement speed. At the same time, for pure electric trailers, due to the characteristics of the trailer structure itself, the space between the front of the trailer and the rear of the tractor is small, and the battery pack is located in the lower space of the trailer head, making it difficult to replace. Summary of the invention

[0003] The present application provides a trailer straddle-type battery pack replacement system, which has a simple structure, fast replacement, low manufacturing cost and high efficiency. It not only solves the problem that it is difficult to replace the battery pack of a pure electric trailer, but also serves as a new automobile battery replacement system that can be applied to battery replacement of other models of electric vehicles.

[0004] The technical solution adopted by the present invention is: A trailer straddle-type battery pack replacement system comprises a tractor head, a trailer and a replacement device. The tractor head comprises a cab, a vehicle frame and a brake system. The trailer is also provided with a brake system. The system is also provided with a mobile traction seat and a straddle-type battery pack mounting frame. The mobile traction seat is installed on the center of the vehicle frame near the tail. The tractor head is connected to the trailer through the mobile traction seat. The straddle-type battery pack mounting frame is straddled on the vehicle frame behind the tractor cab. The replacement device is used when replacing the battery.

[0005] The straddle-type battery pack mounting frame includes a battery pack bearing frame and a lifting structure, and the lifting structure is installed on the top of the battery pack bearing frame; the battery pack bearing frame is composed of a battery box and a straddle structure. The straddle-type battery pack mounting frame is also provided with a protective outer skin. The shape and size of the straddle structure of the straddle-type battery pack mounting frame match the corresponding automobile beam, and the lifting structure on the top of the battery pack bearing frame matches the lifting mechanism on the replacement device. The straddle-type battery bearing frame is made of materials including but not limited to metal or non-metal, and the structure includes but not limited to a welding structure, a casting structure, and a detachable connection structure. The replacement device may be a mobile replacement device or a fixed replacement device, and the mobile replacement device includes but is not limited to a mobile trolley. The replacement device may be provided in one or more units, and when multiple units are provided, one or more units are in a state of waiting for fully charged batteries to be loaded, and one or more units are in a state of waiting for no-load batteries to be loaded.

[0006] A mobile locking mechanism is arranged on the mobile traction seat.

[0007] To meet the needs of fully automatic intelligent battery replacement, the mobile locking mechanism on the mobile traction seat is equipped with an automatic intelligent locking system, the replacement device is an intelligent replacement device, each brake system is an intelligent braking system, and an automatic replacement intelligent console is installed on the tractor head. Each intelligent device and system can communicate with the intelligent automatic replacement console.

[0008] The method for replacing batteries using the straddle-type battery pack replacement system comprises the following steps: 1. The vehicle enters the battery replacement station and the trailer brakes; 2. The mobile locking mechanism on the mobile traction seat is released; 3. The trailer remains stationary and the tractor head moves forward a predetermined distance and then brakes; 4. The replacement device starts working, removes the exhausted battery pack on the vehicle, replaces it with a fully charged battery pack in the battery warehouse, and then returns and installs the exhausted battery pack to the original position; 5. The tractor head releases the brake and reverses to the original position; 6. The mobile locking mechanism on the mobile traction seat is locked again; 7. The trailer releases the brake; 8. The vehicle drives out of the battery replacement station and the battery replacement is completed.

[0009] This straddle-type battery pack replacement system is used for battery replacement. Each replacement equipment and system adopts intelligent equipment and systems, so that the entire replacement process can be realized through one-touch intelligent automatic operation through the automatic replacement intelligent control console set on the head of the tractor.

[0010] The trailer straddle-type battery pack replacement system provides a new way to replace vehicle batteries, solving the problem of quickly replacing battery packs for pure electric trailer tractors. It also uses a straddle-type battery pack mounting frame to fully utilize the existing layout and structure of the vehicle frame, making the entire battery pack structure simple and quick to replace. It can also achieve automated intelligent control, greatly improving battery replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1It is a schematic diagram of the composition of a trailer straddle-type battery pack replacement system provided in an embodiment of the present application; Figure 2 for Figure 1 sectional view of Figure 3 is a schematic diagram of a battery pack mounting frame in a straddle-type battery pack replacement system provided in an embodiment of the present application; Figure 4 yes Figure 3 Side view of Figure 5 It is a three-dimensional axonometric drawing of the battery pack carrier frame; Among them, 1 is a lifting structure, 2 is a battery pack bearing frame, 3 is a protective outer skin, 4 is a straddle structure, 5 is a vehicle beam, 6 is a mobile traction seat, 7 is a mobile locking mechanism, 8 is a straddle type battery pack mounting frame, 9 is a trailer, 10 is a battery warehouse, 11 is a replacement trolley, 12 is an automatic replacement intelligent control console, 13 is a tractor head, 14 is a cab, and 15 is a battery box. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and Examples. In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures, technologies, etc. are proposed so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices and methods are omitted to prevent unnecessary details from hindering the description of the present application. In order to illustrate the technical solutions described in the present application, the following is described by specific embodiments. Example

[0014] Figures 1 to 5 A schematic diagram of the composition and structure of a trailer straddle-type battery pack replacement system provided in an embodiment of the present application is shown.

[0015] The trailer straddle-type battery pack replacement system includes a tractor head 13, a trailer 9 and a replacement device 11. The tractor head 13 includes a cab 14, a vehicle beam 5 and a brake system. The trailer is also provided with a brake system. The replacement system is also provided with a mobile traction seat 6 and a straddle-type battery pack mounting frame 8; the mobile traction seat 6 is installed on the center of the vehicle beam 5 near the tail, and the tractor head 13 is connected to the trailer 9 through the mobile traction seat 6; the straddle-type battery pack mounting frame 8 is straddled and installed on the vehicle beam 5 behind the tractor cab 14; the replacement device 11 is used when replacing the battery.

[0016] The straddle-type battery pack mounting frame 8 includes a battery pack bearing frame 2 and a lifting structure 1. The lifting structure 1 is installed on the top of the battery pack bearing frame 2. The battery pack bearing frame is composed of a battery box 15 and a straddle structure 4. The automobile battery pack is installed in the battery box 15 of the battery pack mounting frame 8. The battery pack bearing frame 2 is a steel welding structure, and the material is alloy structural steel. The lifting structure 1 is a rectangular steel pipe welded on the top of the battery pack bearing frame 2. The straddle-type battery pack mounting frame 8 is also provided with a protective outer skin 3 on the outside. The outer skin 3 is made of a steel plate, and the outer skin 3 is fixed to the battery pack bearing frame 2 by bolts. The shape and size of the straddle structure 4 on the straddle-type battery pack mounting frame 8 match the matching automobile beam 5. The replacement device 11 is a manually operated forklift, which is set as one. The lifting fork on the manually operated forklift matches the inner cavity size of the rectangular steel pipe as the lifting structure on the top of the battery pack bearing frame. The mobile traction seat 6 is provided with a mobile locking mechanism 7.

[0017] The steps of using the straddle-type battery pack replacement system to replace the battery are as follows: 1. The vehicle enters the battery replacement station, and the trailer 9 brakes; 2. The mobile locking mechanism 7 on the mobile traction seat 6 is released; 3. The trailer 9 remains stationary, and the tractor head 13 moves forward a predetermined distance and then brakes; 4. The forklift 11 is manually operated to start working, go forward to remove the low-power battery pack on the vehicle, replace it with a fully charged battery pack in the battery warehouse 10, and then return and install it in the original position; 5. The tractor head 13 releases the brake and reverses to the original position; 6. The mobile locking mechanism 7 on the mobile traction seat 6 is locked again; 7. The trailer 9 releases the brake; 8. The vehicle drives out of the battery replacement station, and the battery replacement is completed. The above operations are all manual operations. Example

[0018] In this embodiment, the mobile locking mechanism 7 on the mobile traction seat 6 is provided with an automatic intelligent locking system, the replacement device 11 is an intelligent forklift, the traction head 13 is provided with an automatic replacement intelligent control console 12, the brake system is an intelligent brake system, the automatic intelligent locking system and the intelligent forklift and the intelligent brake system provided on the mobile locking mechanism 7 can communicate and connect with the intelligent automatic replacement control console 12, there are two intelligent forklifts, which are placed on both sides of the replacement station, one is in a waiting state for loading fully charged batteries, and the other is in an empty waiting state. After the replacement starts, the empty forklift directly removes the exhausted battery pack, and the other fully loaded forklift immediately directly installs the fully charged battery, which saves the waiting time of the tractor during the battery transportation process of the intelligent forklift, and greatly improves the efficiency. The rest is the same as Example 1.

[0019] The method of using the straddle-type battery pack replacement system to replace batteries is a fully intelligent automatic replacement method with one-button operation. After the driver drives the vehicle into the battery replacement station, he only needs to press the one-button replacement button on the automatic replacement intelligent console 12, and the entire replacement process will be automatically completed. The specific replacement steps are: 1. The trailer 9 brakes; 2. The mobile locking mechanism 7 on the mobile traction seat 6 is automatically released; 3. The trailer 9 remains stationary, and the tractor head 13 automatically moves forward a predetermined distance and then brakes; 4. The intelligent forklift 11 starts working, and automatically searches for the target according to the information and instructions issued by the automatic replacement intelligent console 12. The unloaded one goes forward to take the exhausted battery pack on the vehicle, replaces it with a fully charged battery pack in the battery warehouse 1, and then returns to its original position to continue to wait. The other intelligent forklift 11 carrying a fully charged battery pack immediately installs the fully charged battery pack at the original position of the exhausted battery pack, and then continues to wait. 5. The tractor 13 automatically releases the brake and reverses to the original position; 6. The mobile locking mechanism 7 on the mobile traction seat 6 automatically locks again; 7. The trailer releases the brake, the battery replacement is completed, and the vehicle switches to the manual operation mode. The above battery replacement operation is fully intelligent and unmanned.

[0020] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A trailer-mounted straddle-type battery replacement system, comprising a tractor head (13), a trailer (9) and a replacement device (11), wherein the tractor head comprises a cab (14), a vehicle beam (5) and a brake system, and the trailer is also provided with a brake system, characterized in that The replacement system is further provided with a mobile traction seat (6) and a straddle-type battery pack mounting frame (8); the mobile traction seat (6) is mounted on the center of the vehicle frame (5) near the rear, and the tractor head is connected to the trailer (9) via the mobile traction seat (6); the straddle-type battery pack mounting frame (8) is straddle-mounted on the vehicle frame (5) behind the tractor cab (14); and the replacement device (11) is used when replacing the battery.

2. The trailer straddle-type battery pack replacement system as claimed in claim 1, characterized in that: The replacement device (11) may be provided in one or more units, and the replacement device (11) is a mobile replacement device or a fixed replacement device; the mobile traction seat (6) is provided with a mobile locking mechanism (7).

3. The trailer straddle-type battery pack replacement system as claimed in claims 1 and 2, characterized in that: The straddle-type battery pack mounting frame (8) comprises a battery pack supporting frame (2) and a lifting structure (1), wherein the lifting structure (1) is installed on the top of the battery pack supporting frame (2); the battery pack supporting frame is composed of a battery box 15 and a straddle structure (4).

4. The trailer straddle-type battery pack replacement system as claimed in claim 3, characterized in that: The straddle-type battery pack mounting frame (8) is made of metal or non-metal material.

5. The trailer straddle-type battery pack replacement system as claimed in claim 4, characterized in that: The straddle-type battery pack mounting frame (8) is a welded structure, a cast structure or a detachable connection structure.

6. The trailer straddle-type battery pack replacement system as claimed in claim 5, characterized in that: The straddle-type battery pack mounting frame (8) is provided with a protective outer skin (3) on the outside.

7. The trailer straddle-type battery pack replacement system as described in claims 1, 2, 4, 5, and 6, characterized in that: The cab (14) is provided with an automatic replacement system intelligent control console (12), the mobile locking mechanism (7) is provided with an automatic intelligent locking mechanism, the replacement device (11) is an intelligent replacement device, and the brake system is an intelligent brake system; the automatic replacement intelligent control console (12) is communicatively connected with the mobile locking mechanism (7), the replacement device (11) and the intelligent brake system.

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