Frame and electric vehicle

Abstract

The utility model relates to the technical field of electric vehicles, and particularly discloses a frame and an electric vehicle, and the frame comprises a main body, a seat cask, a rear bottom fork assembly and a shock-proof piece. The two ends of the anti-vibration piece are rotationally connected with the seat cask and the rear bottom fork assembly respectively, the angle range of the inclined included angle A between the anti-vibration piece and the ground is limited to be 30-45 degrees, in this way, in the driving process of a user, the best stability and comfort can be provided for the user, and therefore the driving experience of the user is improved; therefore, the purpose of optimizing the design angle of the shock-proof spring in the prior art is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a frame and an electric vehicle. Background Art

[0002] The electric vehicle frame is the core of an electric vehicle, and its structure directly determines the safety and comfort of the electric vehicle. In the existing single shock-absorbing frame structure, the layout and design angle of the shock-absorbing spring are particularly important. The design angle of the shock-absorbing spring will affect the riding comfort of the user, and the layout of the shock-absorbing spring will affect the placement and space size of the seat bucket. Utility Model Content

[0003] The utility model aims to provide a frame and an electric vehicle, so as to optimize the design angle of the shock-absorbing spring and improve the riding comfort of the user.

[0004] On the one hand, the utility model provides a frame, which includes a main body; a seat barrel, which is arranged on the main body; a rear fork assembly, which is rotatably connected to the main body and is located below the seat barrel; a shock absorber, the upper end of the shock absorber is rotatably connected to the seat barrel, and the lower end of the shock absorber is rotatably connected to the rear fork assembly, the shock absorber is inclined from the lower end to the upper end toward the forward direction of the electric vehicle, and the inclination angle between the shock absorber and the ground is A, 30°≤A≤45°.

[0005] As an optional technical solution for the frame, the seat barrel has a first mounting seat, the rear fork assembly has a second mounting seat, the upper end of the shock absorber is rotatably connected to the first mounting seat, and the lower end of the shock absorber is rotatably connected to the second mounting seat.

[0006] As an optional technical solution for the frame, the frame includes a first fastener, the first mounting seat includes a first mounting tube and a first mounting plate and a second mounting plate spaced apart on the first mounting tube, the first mounting tube is connected to the seat barrel, a first mounting ring is provided at the upper end of the shock absorber, a first rotating bearing is provided in the first mounting ring, and the first fastener passes through the first mounting plate, the first rotating bearing and the second mounting plate in sequence to connect the upper end of the shock absorber and the first mounting seat.

[0007] As an optional technical solution for the vehicle frame, the first mounting plate and the second mounting plate are both U-shaped.

[0008] As an optional technical solution for the frame, the frame includes a second fastener, the second mounting seat includes a second mounting tube and a third mounting plate and a fourth mounting plate spaced apart on the second mounting tube, the second mounting tube is connected to the rear fork assembly, a second mounting ring is provided at the lower end of the shock absorber, a second rotating bearing is provided in the second mounting ring, and the second fastener passes through the third mounting plate, the second rotating bearing and the fourth mounting plate in sequence to connect the lower end of the shock absorber to the second mounting seat.

[0009] As an optional technical solution for the frame, the rear flat fork assembly includes a connecting tube, an upper side tube and a lower side tube. The connecting tube is rotatably connected to the main body. One end of the upper side tube and one end of the lower side tube are both arranged on the connecting tube, the other end of the upper side tube is connected to the other end of the lower side tube, and the second mounting seat is arranged on the upper side tube.

[0010] As an optional technical solution for the frame, the upper side tube includes a first tube body, a second tube body and a first cross beam tube, one end of the first tube body and one end of the second tube body are connected to the connecting tube, the other end of the first tube body and the other end of the second tube body are connected to the lower side tube, the two ends of the first cross beam tube are respectively connected to the first tube body and the second tube body, and the second mounting seat is arranged on the first cross beam tube.

[0011] As an optional technical solution for the frame, the lower side tube includes a third tube body, a fourth tube body and a second cross beam tube, one end of the third tube body and one end of the fourth tube body are both connected to the connecting tube, the other end of the third tube body is connected to the other end of the first tube body, the other end of the fourth tube body is connected to the other end of the second tube body, and both ends of the second cross beam tube are respectively connected to the third tube body and the fourth tube body.

[0012] As an optional technical solution for the frame, the rear fork assembly also includes a plurality of reinforcing tubes, and the plurality of reinforcing tubes are arranged at intervals between the upper side tube and the lower side tube.

[0013] As an optional technical solution for the frame, the main body includes a main beam, a battery frame support plate, a pair of main side tubes, and a pair of battery side tubes. One end of the pair of main side tubes is connected to the two sides of the main beam one by one, and the other end of the main side tubes extends upward and can be connected to each other. One end of the battery side tube is connected to the main beam, and the other end of the battery side tube is connected to the main side tube. One end of the battery frame support plate is connected to the main beam, and the other end of the battery frame support plate is connected to the main side tube.

[0014] On the other hand, the utility model provides an electric vehicle, comprising a frame in any of the above solutions.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a bicycle frame, which comprises a main body, a seat barrel, a rear flat fork assembly and a shock absorber. The two ends of the shock absorber are rotatably connected to the seat barrel and the rear flat fork assembly respectively, and the angle range of the inclination angle A between the shock absorber and the ground is limited to between 30° and 45°, so that the user can be provided with the best stability and comfort during driving, thereby improving the user's driving experience, and further achieving the purpose of optimizing the design angle of the shock absorber spring in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the vehicle frame in the embodiment of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0019] In the figure:

[0020] 1. Main body; 11. Main beam; 12. Main side tube; 13. Battery side tube; 14. Battery frame support plate;

[0021] 2. seat barrel; 21. first mounting seat; 211. first mounting pipe; 212. first mounting plate; 213. second mounting plate;

[0022] 3. Rear fork assembly; 31. Second mounting seat; 311. Second mounting tube; 312. Third mounting plate; 313. Fourth mounting plate; 32. Connecting tube; 33. Upper tube; 331. First tube body; 332. Second tube body; 333. First crossbeam tube; 34. Lower tube; 341. Third tube body; 342. Fourth tube body; 343. Second crossbeam tube; 35. Reinforcement tube;

[0023] 4. Shock absorbers. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected 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 the present invention can be understood according to specific circumstances.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] like Figure 1 to Figure 2 As shown, this embodiment provides a bicycle frame, which includes a main body 1, a seat barrel 2, a rear fork assembly 3 and a shock absorber 4. The seat barrel 2 and the rear fork assembly 3 are both arranged on the main body 1, and the rear fork assembly 3 is located below the seat barrel 2. At the same time, the upper end of the shock absorber 4 is rotatably connected to the seat barrel 2, and the lower end of the shock absorber 4 is rotatably connected to the rear fork assembly 3, and the angle of inclination A between the shock absorber 4 and the ground is limited to between 30° and 45°, so that the user can be provided with the best stability and comfort during driving, thereby improving the user's driving experience, and achieving the purpose of optimizing the design angle of the shock absorber spring in the prior art.

[0029] In one embodiment of the present invention, the shock-absorbing member 4 is a shock-absorbing spring, and the inclined angle A between the upper end of the shock-absorbing member 4 and the ground is 45°.

[0030] Alternatively, it can also be adjusted according to the overall design requirements of the electric vehicle, and the inclination angle A between the shock absorber 4 and the ground can be set to 30°, 35°, 40°, etc. While meeting user needs, it can also provide users with optimal stability and comfort, thereby improving the user's driving experience.

[0031] In order to facilitate the installation of the shock absorber 4, the seat barrel 2 is provided with a first mounting seat 21, and the rear fork assembly 3 is provided with a second mounting seat 31, so that the first mounting seat 21 can be rotatably connected to the upper end of the shock absorber 4, and similarly, the second mounting seat 31 can be rotatably connected to the lower end of the shock absorber 4. Since the shock absorber 4 will expand and contract during actual driving, the above arrangement can provide the user with the best stability and comfort.

[0032] Specifically, the frame includes a first fastener, and the first mounting seat 21 includes a first mounting tube 211 and a first mounting plate 212 and a second mounting plate 213 arranged at intervals on both sides of the first mounting tube 211, wherein the first mounting tube 211 is connected to the seat barrel 2, and a first mounting ring is provided at the upper end of the shock absorber 4, and a first rotating bearing is provided in the first mounting ring, so that the upper end of the shock absorber 4 can be connected to the first mounting seat 21 by the first fastener, and the first fastener can also be used as a rotating shaft, so that the upper end of the shock absorber 4 can rotate relative to the first mounting seat 21. Among them, the first fastener is a connection form in which a bolt and a nut cooperate, and the bolt passes through the first mounting plate 212, the first rotating bearing and the second mounting plate 213 in sequence, and cooperates with the nut to connect the upper end of the shock absorber 4 to the first mounting seat 21, and the bolt can be used as a rotating shaft.

[0033] In one embodiment of the utility model, the shape of the first mounting plate 212 and the shape of the second mounting plate 213 are both U-shaped. This arrangement can be distinguished from the prior art where the first mounting plate 212 and the second mounting plate 213 are directly arranged in a rectangular shape. The shape of the first mounting plate 212 and the shape of the second mounting plate 213 are both arranged in a U-shaped structure, so that the first mounting plate 212 and the second mounting plate 213 occupy less space under the seat bucket, and a larger storage space can be reserved under the seat bucket.

[0034] Specifically, the frame includes a second fastener, and the second mounting seat 31 includes a second mounting tube 311 and a third mounting plate 312 and a fourth mounting plate 313 spaced apart on the second mounting tube 311, wherein the second mounting tube 311 is connected to the rear fork assembly 3, and a second mounting ring is provided at the lower end of the shock absorber 4, and a second rotating bearing is provided in the second mounting ring. Similarly, the second fastener can be used to connect the lower end of the shock absorber 4 to the second mounting seat 31. The second fastener is also a connection form in which a bolt and a nut cooperate, and the bolt passes through the third mounting plate 312, the second rotating bearing and the fourth mounting plate 313 in sequence, and cooperates with the nut to connect the lower end of the shock absorber 4 to the second mounting seat 31, and the bolt can be used as a rotating shaft.

[0035] In this embodiment, if Figure 1 and Figure 2 As shown, the rear flat fork assembly 3 includes a connecting tube 32, an upper side tube 33 and a lower side tube 34. The connecting tube 32 is rotatably connected to the main body 1, and one end of the upper side tube 33 and one end of the lower side tube 34 can be set on the connecting tube 32, and the other end of the upper side tube 33 and the other end of the lower side tube 34 are connected as a whole. This arrangement makes it easy to install the second mounting seat 31 on the upper side tube 33 to play a supporting and positioning role.

[0036] Optionally, the connecting pipe 32 includes a pipe body and a connecting bearing arranged in the pipe body. The connecting bolt can be passed through the connecting bearing and fixed by a connecting nut, and the pipe body is connected to the main body 1.

[0037] Among them, the upper side tube 33 includes a first tube body 331, a second tube body 332 and a first cross beam tube 333. In one embodiment of the utility model, one end of the first tube body 331 and one end of the second tube body 332 are connected to the connecting tube 32, and the first cross beam tube 333 is located between the first tube body 331 and the second tube body 332. This arrangement makes it easy to install the second mounting seat 31 on the first cross beam tube 333.

[0038] Similarly, in this embodiment, the lower side tube 34 includes a third tube body 341, a fourth tube body 342 and a second cross beam tube 343. Among them, one end of the third tube body 341 and one end of the fourth tube body 342 are both connected to the connecting tube 32, and the other end of the fourth tube body 342 and the other end of the second tube body 332 can be connected through a connecting piece, and the two ends of the second cross beam tube 343 are respectively connected to the third tube body 341 and the fourth tube body 342 through a connecting piece, thereby ensuring the stability and reliability of the connection.

[0039] Specifically, the rear fork assembly 3 further includes a plurality of reinforcing tubes 35, which are arranged at intervals between the upper tube 33 and the lower tube 34. Such an arrangement can enhance the connection strength between the upper tube 33 and the lower tube 34, thereby improving the structural strength of the entire frame. The reinforcing tubes 35 can be arranged vertically or inclined.

[0040] In this embodiment, the main body 1 includes a main beam 11, a battery frame support plate 14, a pair of main side tubes 12, and a pair of battery side tubes 13. Since one end of the main side tube 12 and one end of the battery side tube 13 are connected to the main beam 11, the other end of the main side tube 12 can be connected through a connecting plate after extending upward. The other end of the battery side tube 13 is connected to the main side tube 12, and the double-sided tube structure design is adopted to enhance the strength and impact resistance of the frame. In addition, a battery frame support plate 14 is provided, which can enhance the structural strength of the battery compartment. The thickness of the battery frame support plate 14 is 4-6mm, which can increase the ground clearance of the frame, improve the problem of bottoming out and wading when the whole vehicle passes the speed bump, and can reasonably adapt the thickness of the battery frame support plate 14 according to the weight of the battery to meet the structural strength of the frame. Among them, the thickness of the battery frame support plate 14 can be 4mm, 4.5mm, 5.5mm, 6mm, which can also increase the ground clearance of the frame while meeting the structural strength of the frame. In this embodiment, the thickness of the battery frame support plate 14 is 5 mm.

[0041] Among them, the main beam 11 is inclined toward the forward direction of the electric vehicle, and the inclined angle between it and the ground is 65°-75°, which can enhance the strength and impact resistance of the frame, and the main beam 11 is an elliptical tube with a cross-section of 40mm*60mm, and its strength and torsional rigidity are higher than those of a round tube. Similarly, according to the overall design requirements of the electric vehicle, the inclined angle between the main beam 11 and the ground can be set to 65°, 68°, 70°, 72°, 75°, etc. The design angles of the inclined angles listed above can all enhance the strength and impact resistance of the frame. In one embodiment of the utility model, the inclined angle between the main beam 11 and the ground is 70°.

[0042] Optionally, the main body 1 further comprises a head pipe arranged on the main beam 11 and hooks connected to the upper side pipe 33 and the lower side pipe 34. The hooks are arranged to facilitate the installation of the motor. The head pipe is arranged to facilitate the installation of the handlebar.

[0043] This embodiment also provides an electric vehicle, including the frame of the above solution. With the electric vehicle of this embodiment, since the angle of inclination A between the upper end of the shock absorber 4 and the ground is limited to between 30° and 45°, the user can be provided with the best stability and comfort during driving, thereby improving the user's driving experience, thereby achieving the purpose of optimizing the design angle of the shock absorber spring in the prior art.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A frame, characterized in that: include: Subject (1); A seat bucket (2) is arranged on the main body (1); A rear flat fork assembly (3) is rotatably connected to the main body (1) and is located below the seat barrel (2); A shock absorber (4), wherein the upper end of the shock absorber (4) is rotatably connected to the seat barrel (2), and the lower end of the shock absorber (4) is rotatably connected to the rear fork assembly (3). The shock absorber (4) is inclined from the lower end to the upper end toward the forward direction of the electric vehicle, and the inclination angle between the shock absorber (4) and the ground is A, 30°≤A≤45°.

2. The frame according to claim 1, characterized in that: The seat barrel (2) has a first mounting seat (21), the rear flat fork assembly (3) has a second mounting seat (31), the upper end of the shock absorber (4) is rotatably connected to the first mounting seat (21), and the lower end of the shock absorber (4) is rotatably connected to the second mounting seat (31).

3. The frame according to claim 2, characterized in that: The frame comprises a first fastener, the first mounting seat (21) comprises a first mounting tube (211) and a first mounting plate (212) and a second mounting plate (213) arranged at intervals on both sides of the first mounting tube (211), the first mounting tube (211) is connected to the seat barrel (2), the upper end of the shock absorber (4) is provided with a first mounting ring, the first mounting ring is provided with a first rotating bearing, the first fastener passes through the first mounting plate (212), the first rotating bearing and the second mounting plate (213) in sequence to connect the upper end of the shock absorber (4) and the first mounting seat (21).

4. The frame according to claim 3, characterized in that: The first mounting plate (212) and the second mounting plate (213) are both U-shaped.

5. The frame according to claim 2, characterized in that: The frame comprises a second fastener, the second mounting seat (31) comprises a second mounting tube (311) and a third mounting plate (312) and a fourth mounting plate (313) arranged at intervals on the second mounting tube (311), the second mounting tube (311) is connected to the rear fork assembly (3), a second mounting ring is provided at the lower end of the shock absorber (4), a second rotating bearing is provided in the second mounting ring, and the second fastener passes through the third mounting plate (312), the second rotating bearing and the fourth mounting plate (313) in sequence to connect the lower end of the shock absorber (4) to the second mounting seat (31).

6. The frame according to claim 2, characterized in that: The rear flat fork assembly (3) comprises a connecting tube (32), an upper side tube (33) and a lower side tube (34); the connecting tube (32) and the main body (1) are rotatably connected; one end of the upper side tube (33) and one end of the lower side tube (34) are both arranged on the connecting tube (32); the other end of the upper side tube (33) and the other end of the lower side tube (34) are connected; and the second mounting seat (31) is arranged on the upper side tube (33).

7. The frame according to claim 6, characterized in that: The upper side tube (33) comprises a first tube body (331), a second tube body (332) and a first cross beam tube (333); one end of the first tube body (331) and one end of the second tube body (332) are both connected to the connecting tube (32); the other end of the first tube body (331) and the other end of the second tube body (332) are connected to the lower side tube (34); the two ends of the first cross beam tube (333) are respectively connected to the first tube body (331) and the second tube body (332); and the second mounting seat (31) is arranged on the first cross beam tube (333).

8. The frame according to claim 7, characterized in that: The lower side tube (34) comprises a third tube body (341), a fourth tube body (342) and a second cross beam tube (343); one end of the third tube body (341) and one end of the fourth tube body (342) are both connected to the connecting tube (32); the other end of the third tube body (341) is connected to the other end of the first tube body (331); the other end of the fourth tube body (342) is connected to the other end of the second tube body (332); and the two ends of the second cross beam tube (343) are respectively connected to the third tube body (341) and the fourth tube body (342).

9. The frame according to claim 6, characterized in that: The rear flat fork assembly (3) further comprises a plurality of reinforcing tubes (35), wherein the plurality of reinforcing tubes (35) are arranged at intervals between the upper side tube (33) and the lower side tube (34).

10. The frame according to claim 1, characterized in that: The main body (1) comprises a main beam (11), a battery frame support plate (14), a pair of main side tubes (12), and a pair of battery side tubes (13); one end of the pair of main side tubes (12) is connected to two sides of the main beam (11) in a one-to-one correspondence; the other end of the main side tubes (12) extends upward and can be connected to each other; one end of the battery side tube (13) is connected to the main beam (11), and the other end of the battery side tube (13) is connected to the main side tube (12); one end of the battery frame support plate (14) is connected to the main beam (11), and the other end of the battery frame support plate (14) is connected to the main side tube (12).

11. An electric vehicle, characterized in that: A vehicle frame comprising any one of claims 1-10.

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