Frame structure of electric vehicle and electric vehicle

Abstract

The utility model provides a frame structure of an electric vehicle, which relates to the field of electric vehicles and comprises a front fork sleeve and a beam frame connected with the front fork sleeve, the beam frame comprises a front beam section, a connecting section and a rear beam section which are sequentially connected, the front beam section is fixedly connected with the front fork sleeve, two rear fork plates which are oppositely arranged are arranged on the rear beam section, and the connecting section is fixedly connected with the front fork sleeve. The rear beam section is further movably connected with a goods shelf, damping assemblies are arranged between the two sides of the goods shelf and the bicycle beam frame, the damping assemblies are located in front of the rear beam section, and each damping assembly comprises an upper connecting base connected with the goods shelf, a lower connecting base connected with the connecting section and a damper movably connected with the upper connecting base and the lower connecting base. Compared with the prior art, according to the frame structure of the electric vehicle, the rear beam section of the beam frame is directly connected with the goods shelf, the shock absorber is arranged in front of the tail end of the beam frame, and the seat post sleeve is arranged at the front end of the goods shelf, so that the stroke of the goods shelf is reduced, the comfort is improved, the whole frame structure is easy to manufacture and assemble, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicles, and in particular to a frame structure for an electric vehicle and an electric vehicle using the frame structure. Background Technology

[0002] Currently, electric vehicles have become a popular mode of transportation in small and medium-sized cities and rural areas of my country, bringing convenience to people's travel. As living standards improve, people's requirements for the driving comfort of electric vehicles have also increased.

[0003] The frame is an important component of an electric vehicle. It bears the mass and effective load of each assembly of the electric vehicle, as well as various forces and torques generated when the electric vehicle is in motion, and various static and dynamic loads. The structural design of the frame directly determines the safety, support, and aesthetics of the electric vehicle.

[0004] Existing vehicle frame structures typically include a beam frame and a seat tube and rack mounted on the beam frame. The conventional shock absorption method is the soft tail design, where the rear end of the rack is usually connected to the beam frame via a shock absorber, with the rotation fulcrum of the beam frame and rack located below. However, with this shock absorption method, the rack mainly relies on the connection between the front end of the rack and the beam frame for support. When encountering bumpy roads, the shock absorption effect of this frame structure is not good enough, resulting in a noticeable bumpy ride. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a frame structure for an electric vehicle that reduces the travel distance of the rack, improves comfort, facilitates manufacturing and assembly, and reduces frame costs.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An electric vehicle frame structure includes a front fork sleeve and a frame beam connected to the front fork sleeve. The frame beam includes a front beam section, a connecting section, and a rear beam section connected in sequence. The front beam section is fixedly connected to the front fork sleeve. The rear beam section is provided with two opposing rear fork plates. The rear beam section is also movably connected to a rack. Shock-absorbing components are provided between the rack and the frame beam on both sides. The shock-absorbing components are located in front of the rear beam section. The shock-absorbing components include an upper connecting seat connected to the rack, a lower connecting seat connected to the connecting section, and a shock absorber movably connecting the upper connecting seat and the lower connecting seat.

[0008] Preferably, the beam frame is formed by bending a first beam tube and a second beam tube, the connecting section of the first beam tube and the second beam tube is horizontal, and the front beam section and the rear beam section of the first beam tube and the second beam tube are bent upward.

[0009] More preferably, the shelf is provided with shelf mounting seats on both sides, and the shelf mounting seats are located behind the lower connecting seat. The rear beam sections of the first and second beam tubes are provided with frame mounting seats that cooperate with the shelf mounting seats. The shelf mounting and the frame mounting seats are connected by a pin shaft.

[0010] More preferably, the beam frame is further provided with a beam mounting plate, which includes a front beam mounting plate and a connecting beam mounting plate. The front beam mounting plate is disposed between the front beam sections of the first beam tube and the second beam tube, and the connecting beam mounting plate is disposed between the connecting section of the first beam tube and the second beam tube.

[0011] More preferably, a storage basket can be detachably installed on the connecting beam mounting plate.

[0012] More preferably, a battery guard is installed at the bottom of the connecting beam mounting plate, and a battery mounting position is provided inside the battery guard.

[0013] More preferably, a front foot pedal and a rear foot pedal are also installed on the connecting section of the first and second beam tubes.

[0014] More preferably, the front end of the shelf is fixedly connected to a seat pole sleeve located above the vehicle beam frame.

[0015] This utility model also provides an electric vehicle, which includes a frame structure.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a frame structure for an electric vehicle, in which the rear beam section of the vehicle frame is directly connected to the rack, the shock absorber is set in front of the rear end of the vehicle frame, and the seat post sleeve is set in front of the rack. This reduces the rack travel, improves comfort, reduces space occupation, and the entire frame structure is simple to manufacture and assemble, reducing costs. Attached Figure Description

[0017] Figure 1 A schematic diagram of the frame structure of an electric vehicle provided by this utility model. Figure 1 .

[0018] Figure 2 A schematic diagram of the frame structure of an electric vehicle provided by this utility model. Figure 2 .

[0019] Figure 3 A schematic diagram of the frame structure of an electric vehicle provided by this utility model. Figure 3 Detailed Implementation

[0020] The preferred embodiments of this utility model will be described in detail with reference to the accompanying drawings.

[0021] Figures 1 to 3This is a preferred embodiment of the frame structure of an electric vehicle provided by this utility model. For example... Figures 1 to 3 As shown, the frame mechanism includes a front fork sleeve 10 and a frame beam 20 connected to the front fork sleeve. The frame beam 20 includes a front beam section 21, a connecting section 22, and a rear beam section 23 connected in sequence. The front beam section 21 is fixedly connected to the front fork sleeve 10. The rear beam section 23 is provided with two opposing rear fork plates 30. The rear beam section 23 is also movably connected to a rack 40. Shock-absorbing components 50 are provided on both sides of the rack 40 between it and the frame beam 10. The shock-absorbing components 50 are located in front of the rear beam section 23. The shock-absorbing components 50 include an upper connecting seat 51 connected to the rack, a lower connecting seat 52 connected to the connecting section, and a shock absorber 53 movably connecting the upper connecting seat and the lower connecting seat. In this way, the rear beam section 23 of the frame beam is directly connected to the rack 40. The connection position between the rear beam section 23 and the rack 40 is at the top. The shock absorber 53 is located in front of the rear beam section 23 of the frame beam 20, which reduces the travel of the rack and improves comfort. The shock absorber 53 is a conventional electric vehicle shock absorber, and this application does not make any changes to it.

[0022] like Figure 2 As shown, the frame 23 is formed by bending a first beam tube 201 and a second beam tube 202, resulting in a U-shape. The connecting section 22 of the first and second beam tubes 201 and 202 is horizontal. The front beam section 21 and rear beam section 23 of the first and second beam tubes 201 and 202 are bent upwards. The front beam section 21 of the first and second beam tubes 201 and 202 are connected. The front end of the frame 23 is fixedly connected to the front fork sleeve 10. The connecting section 22 of the first and second beam tubes 201 and 202, and the rear beam section 23 are arranged side by side. A rear wheel is installed between the rear beam section 23 of the first and second beam tubes 201 and 202. A front foot pedal 27 and a rear foot pedal 28 are also installed on the connecting section of the first and second beam tubes 201 and 202 for user convenience.

[0023] The shelf 40 is provided with shelf mounting seats 41 on both sides, and the shelf mounting seats 41 are located behind the lower connecting seat 52. The rear beam sections 23 of the first beam tube 201 and the second beam tube 202 are provided with frame mounting seats 231 that cooperate with the shelf mounting seats. The shelf mounting seats 41 and the frame mounting seats 231 are connected by a pin, so that the connection position between the rear beam section 23 and the shelf 40 is above, which can limit the travel displacement of the shelf 40 and reduce vibration. The frame mounting seats 231 are provided with an insertion groove for the shelf mounting seats 41 to be inserted. The shelf mounting seats 41 are inserted into the insertion groove of the frame mounting seats 231, and then a pin is inserted into the pin hole of the frame mounting seats 231 and the shelf mounting seats 41.

[0024] The shelf 40 can also be used as a rear seat frame. The shelf 40 is equipped with a seat cushion mounting plate 42, on which a flexible seat cushion can be installed to improve comfort.

[0025] like Figure 3 As shown, the vehicle beam frame 23 is also equipped with a vehicle beam mounting plate 24, which includes a front beam mounting plate 241 and a connecting beam mounting plate 242. The front beam mounting plate 241 is located between the front beam sections 21 of the first vehicle beam tube 201 and the second vehicle beam tube 202, and the connecting beam mounting plate 242 is located between the connecting section 22 of the first vehicle beam tube 201 and the second vehicle beam tube 202. The front beam mounting plate 241 and the connecting beam mounting plate 242 are connected as one unit. The front beam mounting plate 241 can serve as a wind and mud shield, and the connecting beam mounting plate 242 can serve as a load-bearing unit. A storage basket 25 can be detachably installed on the connecting beam mounting plate 242 for convenient placement of items. A battery guard 26 is installed at the bottom of the connecting beam mounting plate 242, and the battery guard 26 has a battery mounting position. This allows the battery to be placed in the battery mounting position at the bottom of the connecting beam mounting plate 242, protecting the battery and reducing the space occupied.

[0026] The front end of the shelf 40 is fixedly connected to a seat pole sleeve 60 located above the beam frame 20. The seat pole sleeve 60 is suspended, which saves space and is convenient.

[0027] like Figures 1 to 3 As shown, this utility model also provides an electric vehicle, which uses the frame structure described in this utility model.

[0028] In summary, the technical solution of this utility model can fully and effectively achieve the aforementioned objectives. Furthermore, the structure and functional principles of this utility model have been fully verified in the embodiments, achieving the expected effects and objectives. Without departing from the principles and essence of this utility model, various changes or modifications can be made to the embodiments. Therefore, this utility model includes all substitutions within the scope mentioned in the patent application claims, and any equivalent changes made within the scope of this patent application are within the scope of the patent application.

Claims

1. A frame structure for an electric vehicle, comprising a front fork sleeve and a frame beam connected to the front fork sleeve, characterized in that, The vehicle frame includes a front beam section, a connecting section, and a rear beam section connected in sequence. The front beam section is fixedly connected to the front fork sleeve. The rear beam section is provided with two oppositely arranged rear fork plates. The rear beam section is also movably connected to a rack. Shock-absorbing components are provided between the rack and the vehicle frame on both sides. The shock-absorbing components are located in front of the rear beam section. The shock-absorbing components include an upper connecting seat connected to the rack, a lower connecting seat connected to the connecting section, and a shock absorber movably connecting the upper connecting seat and the lower connecting seat.

2. The frame structure of the electric vehicle according to claim 1, characterized in that: The vehicle beam frame is formed by bending a first vehicle beam tube and a second vehicle beam tube. The connecting section of the first vehicle beam tube and the second vehicle beam tube is horizontal, and the front beam section and the rear beam section of the first vehicle beam tube and the second vehicle beam tube are bent upward.

3. The frame structure of the electric vehicle according to claim 2, characterized in that: The shelf is provided with shelf mounting seats on both sides, and the shelf mounting seats are located behind the lower connecting seat. The rear beam sections of the first and second beam tubes are provided with frame mounting seats that cooperate with the shelf mounting seats. The shelf mounting and the frame mounting seats are connected by a pin shaft.

4. The frame structure of the electric vehicle according to claim 2, characterized in that: The vehicle beam frame is also provided with a vehicle beam mounting plate, which includes a front beam mounting plate and a connecting beam mounting plate. The front beam mounting plate is located between the front beam sections of the first vehicle beam tube and the second vehicle beam tube, and the connecting beam mounting plate is located between the connecting section of the first vehicle beam tube and the second vehicle beam tube.

5. The frame structure of the electric vehicle according to claim 4, characterized in that: A storage basket can be detachably installed on the mounting plate of the connecting beam.

6. The frame structure of the electric vehicle according to claim 4, characterized in that: A battery guard is installed at the bottom of the connecting beam mounting plate, and a battery mounting position is provided inside the battery guard.

7. The frame structure of the electric vehicle according to claim 2, characterized in that: A front foot pedal and a rear foot pedal are also installed on the connecting section of the first and second beam tubes.

8. The frame structure of the electric vehicle according to claim 1, characterized in that: The front end of the shelf is fixedly connected to a seat pole sleeve located above the vehicle beam frame.

9. An electric vehicle, characterized in that, Includes the frame structure as described in any one of claims 1 to 8.

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