Electric vehicle rear fork and electric vehicle

Abstract

The utility model discloses an electric vehicle rear fork and an electric vehicle and relates to the technical field of electric vehicles, the electric vehicle rear fork comprises a rear fork body, a first connecting piece and a second connecting piece, the rear fork body is provided with two connecting ends, and the first connecting piece and the second connecting piece are respectively connected to the two connecting ends. The first connecting piece and the second connecting piece are both used for being fixedly connected with a frame, the bottom fork body is used for being connected with a damping structure and a wheel assembly, and a gap is formed between the first connecting piece and the second connecting piece and used for arranging a battery. According to the electric vehicle rear fork and the electric vehicle, the cost of the electric vehicle is low, and space distribution and utilization are more reasonable.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle technical field especially relates to a kind of electric vehicle rear fork and electric vehicle. BACKGROUND

[0002] Electric vehicle rear fork is the important parts of electric vehicle, its function is fixed rear wheel, carries the weight of vehicle body, and bear the power of rear wheel drive and the tension of brake rear wheel, so it can keep the stability of vehicle body.Electric vehicle rear fork on the market head tube part is a pipe, the both ends of pipe are fixedly connected with frame, for example, CN215399151U discloses a kind of electric vehicle rear fork, the two side beam tubes of the electric vehicle rear fork are fixedly connected on mounting sleeve (i.e. head tube formed by a pipe), and mounting sleeve is used to connect with electric vehicle frame.Electric vehicle rear fork using mounting sleeve, raw material cost is higher, and mounting sleeve occupies part of the space of battery installation, and the distribution and utilization of space is not reasonable enough.Therefore, there is an urgent need for a kind of electric vehicle rear fork and electric vehicle with lower cost and more reasonable space distribution and utilization. SUMMARY

[0003] The utility model aims at providing a kind of electric vehicle rear fork and electric vehicle to solve the problems existing in the prior art, so that cost is lower and the distribution and utilization of space is more reasonable.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a kind of electric vehicle rear fork, comprising: fork body, first connecting piece and second connecting piece, the fork body has two connecting ends, the first connecting piece and the second connecting piece are connected on two the connecting end, the first connecting piece and the second connecting piece are used to be fixedly connected with frame, the fork body is used to be connected with damping structure and wheel assembly, the first connecting piece and the second connecting piece have interval and are used to set battery between the first connecting piece and the second connecting piece.

[0006] In some embodiments, the fork body includes first beam tube, second beam tube and reinforcing pipe, the reinforcing pipe is arranged between the first beam tube and the second beam tube, the both ends of reinforcing pipe are fixedly connected with the first beam tube and the second beam tube, one end of the first beam tube forms one connecting end, and the other connecting end is formed on one end of the second beam tube, which is located on the same side with the connecting end of the first beam tube.

[0007] In some embodiments, the flat fork body further comprises a first reinforcing member and a second reinforcing member, the first reinforcing member is arranged at an included angle formed by the first beam tube and the reinforcing tube, one side of the first reinforcing member is fixedly connected to the first beam tube, and the other side is fixedly connected to the reinforcing tube, the second reinforcing member is arranged at an included angle formed by the second beam tube and the reinforcing tube, one side of the second reinforcing member is fixedly connected to the second beam tube, and the other side is fixedly connected to the reinforcing tube.

[0008] In some embodiments, the first connecting member and the second connecting member each comprise a connecting portion, a first plate member and a second plate member, the connecting portion is connected to the connecting end, the first plate member and the second plate member are fixedly connected to the connecting portion, and the first plate member and the second plate member are each used for fixedly connecting with the frame.

[0009] In some embodiments, the first plate member and the second plate member are oppositely arranged, an installation groove is formed between the first plate member and the second plate member, the frame has two installation sections, the shapes of the two installation sections respectively match the shapes of the installation grooves of the first connecting member and the second connecting member, and the two installation sections can be respectively clamped in the two installation grooves and fixedly connected with the two installation grooves.

[0010] In some embodiments, the inner side walls of the two installation grooves are respectively welded with the outer side surfaces of the two installation sections.

[0011] In some embodiments, the upper side of the first beam tube is fixedly connected with a first connecting seat, the upper side of the second beam tube is fixedly connected with a second connecting seat, and the first connecting seat and the second connecting seat are each used for forming a rotary connection with a damping structure on the frame.

[0012] In some embodiments, the connecting portion of the first connecting member and the connecting portion of the second connecting member are respectively coaxially rotatably connected with the two connecting ends.

[0013] In some embodiments, further comprising a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are respectively fixedly connected to the first beam tube and the second beam tube, and the first connecting plate and the second connecting plate are each used for being connected with the frame through bolts, and the bolt connection can facilitate the installation and disassembly of the first connecting plate and the second connecting plate with the frame.

[0014] This utility model also provides an electric vehicle, including a frame, a wheel assembly, a battery, a shock absorption structure, and the aforementioned electric vehicle rear swingarm. The wheel assembly, the shock absorption structure, and the battery are all connected to the frame. The swingarm body is connected to the shock absorption structure and the wheel assembly. The first connector and the second connector are both fixedly connected to the frame. The battery is located between the first connector and the second connector.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] The electric vehicle rear swingarm provided by this utility model has a first connector and a second connector respectively set on the two connecting ends of the swingarm body. Compared with the head tube formed by a single tube, the use of the first connector and the second connector reduces the production cost due to the use of less raw materials. The gap between the first connector and the second connector allows the battery to be placed between the first connector and the second connector, realizing the rational allocation and utilization of the electric vehicle space. Moreover, the first connector and the second connector replace the head tube formed by a single tube, reducing the weight and making the centrifugal force of the electric vehicle less when turning, thus improving the stability of the electric vehicle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the rear horizontal fork of an electric vehicle in some embodiments of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the electric vehicle rear horizontal fork in Embodiment 1 of this utility model and the frame, battery and shock absorption structure on the electric vehicle in Embodiment 2.

[0020] Figure 3 for Figure 1 A three-dimensional structural diagram of the first connecting component;

[0021] In the diagram: 1. Flat fork body; 11. First beam tube; 12. Second beam tube; 13. Reinforcing tube; 14. First reinforcing member; 15. Second reinforcing member; 2. First connecting member; 21. Connecting part; 22. First plate; 23. Second plate; 24. Mounting slot; 3. Second connecting member; 4. First connecting seat; 5. Second connecting seat; 6. First connecting plate; 7. Second connecting plate; 8. Frame; 81. Mounting section; 9. Shock absorption structure; 10. Battery. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] The utility model discloses a kind of electric vehicle rear flat fork and electric vehicle, to solve the problems existing in the prior art described above, make electric vehicle lighter, more stable, lower cost and more reasonable space distribution.

[0024] To make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0025] Embodiment one

[0026] The embodiment provides a kind of electric vehicle rear flat fork, as shown in Figures 1-3 It includes: flat fork body 1, first connecting piece 2 and second connecting piece 3, flat fork body 1 has two connecting ends, first connecting piece 2 and second connecting piece 3 are connected on two connecting ends respectively, first connecting piece 2 and second connecting piece 3 are all used to be fixedly connected with frame 8, flat fork body 1 is used to be connected with shock-absorbing structure 9 and wheel assembly, first connecting piece 2 and second connecting piece 3 have interval and are used to set battery 10.

[0027] The electric vehicle rear flat fork provided by the embodiment, by being respectively provided with first connecting piece 2 and second connecting piece 3 on two connecting ends of flat fork body 1, using first connecting piece 2 and second connecting piece 3, compared with using the head tube formed by a pipe, because the raw material used is less, reduce production cost;First connecting piece 2 and second connecting piece 3 have interval, i.e. battery 10 can be set between first connecting piece 2 and second connecting piece 3, realize the reasonable distribution and utilization of electric vehicle space;Moreover, first connecting piece 2 and second connecting piece 3 replace the head tube formed by a pipe, reduce weight, through actual test, using first connecting piece 2 and second connecting piece 3, compared with using a pipe, its weight is reduced by 500g, this makes the centrifugal force of electric vehicle when turning smaller, improves the stability of electric vehicle.

[0028] In an embodiment of the present application, the flat fork body 1 comprises a first beam tube 11, a second beam tube 12 and a reinforcing tube 13, the reinforcing tube 13 is arranged between the first beam tube 11 and the second beam tube 12, two ends of the reinforcing tube 13 are fixedly connected with the first beam tube 11 and the second beam tube 12 respectively, one end of the first beam tube 11 forms a connecting end, and one end of the second beam tube 12 which is located at the same side of the connecting end of the first beam tube 11 forms another connecting end. The reinforcing tube 13 can enhance the reliability of the connection between the first beam tube 11 and the second beam tube 12.

[0029] In an embodiment of the present application, the flat fork body 1 further comprises a first reinforcing member 14 and a second reinforcing member 15, the first reinforcing member 14 is arranged at the included angle formed by the first beam tube 11 and the reinforcing tube 13, one side of the first reinforcing member 14 is fixedly connected with the first beam tube 11, and the other side is fixedly connected with the reinforcing tube 13, the second reinforcing member 15 is arranged at the included angle formed by the second beam tube 12 and the reinforcing tube 13, one side of the second reinforcing member 15 is fixedly connected with the second beam tube 12, and the other side is fixedly connected with the reinforcing tube 13. The first reinforcing member 14 and the second reinforcing member 15 can further improve the stability of the flat fork body 1.

[0030] In order to facilitate the production of the first connecting member 2 and the second connecting member 3, in an embodiment of the present application, the first connecting member 2 and the second connecting member 3 each comprise a connecting part 21, a first plate member 22 and a second plate member 23, the connecting part 21 is connected with the connecting end, the first plate member 22 and the second plate member 23 are fixedly connected with the connecting part 21, and the first plate member 22 and the second plate member 23 are each used for fixedly connecting with the frame 8.

[0031] In an embodiment of the present application, the first plate member 22 and the second plate member 23 are oppositely arranged and have a spacing, an installation groove 24 is formed between the first plate member 22 and the second plate member 23, the frame 8 has two installation sections 81, the shapes of the two installation sections 81 respectively match the shapes of the installation grooves 24 of the first connecting member 2 and the second connecting member 3 respectively, and the two installation sections 81 can be respectively clamped in the two installation grooves 24 and fixedly connected with the two installation grooves 24. The installation groove 24 formed by the first plate member 22 and the second plate member 23 limits the frame 8, thereby improving the reliability of the connection between the flat fork of the electric vehicle and the frame 8.

[0032] In order to further improve the reliability of the connection between the flat fork of the electric vehicle and the frame 8, in an embodiment of the present application, the inner side walls of the two installation grooves 24 are respectively welded with the outer side surfaces of the two installation sections 81.

[0033] In order to facilitate the connection of the damping structure 9 and the electric vehicle rear flat fork, in an embodiment of the present embodiment, the upper side of the first beam pipe 11 is fixedly connected with a first connecting seat 4, and the upper side of the second beam pipe 12 is fixedly connected with a second connecting seat 5. Both the first connecting seat 4 and the second connecting seat 5 are used to form a rotary connection with the damping structure 9. Specifically, the damping structure 9 includes a first spring shock absorber and a second spring shock absorber. One end of the first spring is rotatably connected to the frame, and the other end is rotatably connected to the first connecting seat 4. One end of the second spring is rotatably connected to the frame, and the other end is rotatably connected to the second connecting seat 5.

[0034] In an embodiment of the present embodiment, the connecting portion 21 of the first connecting piece 2 and the connecting portion 21 of the second connecting piece 3 are coaxially rotatably connected with the two connecting ends respectively. When the frame 8 is pressed, the damping structure 9 transmits vibration to the electric vehicle rear flat fork, and causes the first beam pipe 11 and the second beam pipe 12 to deform, respectively, so that the first beam pipe 11 and the second beam pipe 12 rotate relative to the first connecting portion 21 and the second connecting portion 21. The rotation is used to buffer the deformation of the first beam pipe 11 and the second beam pipe 12, thereby improving the service life of the first beam pipe 11 and the second beam pipe 12.

[0035] In an embodiment of the present embodiment, the electric vehicle rear flat fork provided by the present embodiment further includes a first connecting plate 6 and a second connecting plate 7. The first connecting plate 6 and the second connecting plate 7 are fixedly connected to the first beam pipe 11 and the second beam pipe 12 respectively. Both the first connecting plate 6 and the second connecting plate 7 are used to be connected with the frame 8 by bolts. The bolt connection can facilitate the installation and disassembly of the first connecting plate 6 and the second connecting plate 7 with the frame 8.

[0036] Embodiment two

[0037] The present embodiment provides an electric vehicle, which includes a frame 8, a wheel assembly, a battery 10, a damping structure 9 and the electric vehicle rear flat fork in embodiment one. The wheel assembly, the damping structure 9 and the battery 10 are connected to the frame 8. The flat fork body 1 is connected with the damping structure 9 and the wheel assembly. The first connecting piece 2 and the second connecting piece 3 are fixedly connected with the frame 8. The battery 10 is located between the first connecting piece 2 and the second connecting piece 3.

[0038] The electric vehicle in the present embodiment has lighter weight, stronger stability, lower cost and more reasonable space allocation due to the use of the electric vehicle rear flat fork in embodiment one.

[0039] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. An electric vehicle rear flat fork, characterized by: include: The fork body comprises a first connector and a second connector. The fork body has two connecting ends. The first connector and the second connector are respectively connected to the two connecting ends. Both the first connector and the second connector are used for fixed connection with the frame. The fork body is used for connection with the shock absorption structure and the wheel assembly. There is a gap between the first connector and the second connector for housing the battery.

2. The electric vehicle rear dropout according to claim 1, characterized in that: The flat fork body includes a first beam tube, a second beam tube, and a reinforcing tube. The reinforcing tube is disposed between the first beam tube and the second beam tube. Both ends of the reinforcing tube are fixedly connected to the first beam tube and the second beam tube, respectively. One end of the first beam tube forms a connecting end, and one end of the second beam tube located on the same side as the connecting end of the first beam tube forms another connecting end.

3. The electric vehicle rear dropout according to claim 2, characterized in that: The flat fork body also includes a first reinforcing member and a second reinforcing member. The first reinforcing member is disposed at the angle formed by the first beam tube and the reinforcing tube. One side of the first reinforcing member is fixedly connected to the first beam tube, and the other side is fixedly connected to the reinforcing tube. The second reinforcing member is disposed at the angle formed by the second beam tube and the reinforcing tube. One side of the second reinforcing member is fixedly connected to the second beam tube, and the other side is fixedly connected to the reinforcing tube.

4. The electric vehicle rear dropout according to claim 3, characterized in that: Both the first connector and the second connector include a connecting portion, a first plate and a second plate. The connecting portion is connected to the connecting end, and the first plate and the second plate are fixedly connected to the connecting portion. Both the first plate and the second plate are used to be fixedly connected to the vehicle frame.

5. The electric vehicle rear dropout according to claim 4, characterized in that: The first plate and the second plate are arranged opposite to each other, and a mounting groove is formed between the first plate and the second plate. The frame has two mounting sections, the shapes of which match the shapes of the mounting grooves of the first connector and the second connector, respectively. The two mounting sections can be respectively locked in the two mounting grooves and are respectively fixedly connected to the two mounting grooves.

6. The electric vehicle rear dropout according to claim 5, characterized in that: The inner sidewalls of the two mounting slots are respectively welded to the outer sidewalls of the two mounting sections.

7. The electric vehicle rear dropout according to claim 2, wherein: A first connecting seat is fixedly connected to the upper side of the first beam tube, and a second connecting seat is fixedly connected to the upper side of the second beam tube. Both the first connecting seat and the second connecting seat are used to form a rotatable connection with the shock absorption structure on the frame.

8. The electric vehicle rear dropout according to claim 1, wherein: The connecting portion of the first connector and the connecting portion of the second connector are respectively rotatably connected to the two connecting ends on the same axis.

9. The electric vehicle rear dropout according to claim 2, wherein: It also includes a first connecting plate and a second connecting plate, which are respectively fixedly connected to the first beam tube and the second beam tube. Both the first connecting plate and the second connecting plate are used to be connected to the vehicle frame by bolts.

10. An electric vehicle characterized by comprising: The electric vehicle rear flat fork comprises a frame, a wheel assembly, a battery, a damping structure and the electric vehicle rear flat fork according to any one of claims 1-9, wherein the wheel assembly, the damping structure and the battery are connected to the frame, the flat fork body is connected to the damping structure and the wheel assembly, the first connecting piece and the second connecting piece are fixedly connected to the frame, and the battery is located between the first connecting piece and the second connecting piece.

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