A new electric vehicle frame and shock-absorbing battery integrated structure

Abstract

The application provides a novel electric vehicle frame and shock-absorbing battery integrated structure, which comprises a headstock, two main beams symmetrically arranged on both sides of the headstock, a support column arranged above the main beams, a seat plate frame connected with the support column and extending rearward, a rear flat fork connected with rear wheels and arranged between the two main beams, a connecting rod arranged on the upper part of the support column and used for connecting the two support columns, a shock absorber arranged between the connecting rod and the rear flat fork, a first support plate arranged on each side of the rear flat fork, a tail end of the main beam being connected with the lower part of the first support plate, and a battery box arranged above the first support plate and used for fixing a battery pack. The novel electric vehicle frame and shock-absorbing battery integrated structure can realize middle single shock absorption, change the placement position of the battery, and shorten the wheelbase of the electric vehicle frame.

Description

Technical Field

[0001] This application belongs to the field of electric bicycle and electric motorcycle accessories, specifically involving a new type of electric vehicle frame and shock-absorbing battery integrated structure. Background Technology

[0002] Electric bicycles and electric motorcycles are a type of transportation that integrates modern electric technology with traditional bicycle design concepts. They represent a series of technological upgrades and functional expansions based on the basic structure of a regular bicycle. The motor, as the core power output device, provides powerful support for the vehicle's movement, delivering the appropriate torque according to the rider's needs, helping them easily cope with various road conditions. Whether climbing hills or accelerating, riding becomes more effortless and comfortable. A battery serves as an auxiliary energy source, providing a stable power supply to the motor, enabling the electric vehicle to travel a certain distance using its own energy storage system without an external power source.

[0003] The frame is the core load-bearing structure of an electric vehicle, a crucial component for balancing safety, performance, and cost. It supports the weight of the entire vehicle and the rider, bearing the impact, vibration, and load pressure during riding. It also serves as a mounting platform for other components (such as the motor, battery, suspension system, and braking system), ensuring the coordinated operation of all parts. The frame includes a battery compartment to secure the battery. Different battery types are used in standard electric bicycles and electric motorcycles, including 72V32A, 72V20A, 60V20A, and 48V24A. Currently, electric vehicle frames typically place the battery compartment under the footrests and saddle, and are equipped with dual shock absorbers. This results in a longer wheelbase (the distance between the center points of the two wheels), making the electric vehicle appear bulky. Furthermore, existing frames do not provide space for adding a battery pack, failing to meet the riding needs of different user groups. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a new type of electric vehicle frame and shock-absorbing battery integrated structure, with a centrally located single shock absorber, changing the placement position of the battery and shortening the wheelbase of the electric vehicle frame.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A novel integrated structure for an electric vehicle frame and shock-absorbing battery includes a handlebar frame, two main beams arranged symmetrically on both sides of the handlebar frame, a support column above the main beams, a seat frame connected to the support column and extending rearward, a rear horizontal fork connected to the rear wheel between the two main beams, a connecting rod for connecting the two support columns on the upper part of the support column, a shock absorber between the connecting rod and the rear horizontal fork, a first support plate on each side of the rear horizontal fork, the lower part of the first support plate connected to the raised tail end of the main beam, and a battery box for fixing the battery pack on the upper part of the first support plate.

[0007] Furthermore, the steering frame includes a main tube connected to the main beam and a head tube located at the front end of the main tube. The head tube is angled to make it easier for the rider to control the steering of the electric vehicle.

[0008] Furthermore, each main beam includes a horizontal section, a first inclined section extending obliquely upward from the front end of the horizontal section, a second inclined section curving obliquely upward from the rear end of the horizontal section, and a bent section connected to the first inclined section and extending towards the head frame. Smooth transitions are provided between the horizontal section and the first inclined section, between the first inclined section and the bent section, and between the horizontal section and the second inclined section to avoid stress concentration. The two bent sections converge and connect in the middle of the main beam. A first reinforcing rod is provided between the two first inclined sections. The bottom end of the main beam is connected to the first reinforcing rod. A second reinforcing rod is connected between the first inclined section and the support column. A third reinforcing rod is provided between the two horizontal sections.

[0009] Furthermore, the third reinforcing rod has a connecting seat in the middle. The connecting seat includes two parallel side plates and a connecting plate between the two side plates. The height of the side plates is greater than the height of the connecting plate. The top edge of the side plates is flush with the top edge of the connecting plate. The part of the side plate protruding from the connecting plate has an arc-shaped notch for connecting with the third reinforcing rod. The side edge of the side plate away from the connecting plate has a semi-circular notch for connecting with the rear horizontal fork.

[0010] Furthermore, the front end of the first support plate is fixedly connected to the support column, and a second support plate is provided between the two first support plates. The second support plate is located above the connecting seat and has a battery box. The length of the first support plate is greater than the length of the second support plate. The length of the first support plate is increased according to the number of battery packs. For example, the length of the first support plate can be 2-4 times the length of a single battery. For instance, two battery packs are placed on the second support plate and one battery pack is placed on the first support plate. In practical applications, the first support plates are located on both sides of the rear swingarm, which is connected to the electric vehicle wheel. The second support plate is located between the two first support plates, and both the first and second support plates have battery boxes. The battery position and battery type can be freely adjusted on the first and second support plates.

[0011] Furthermore, a foot pedal is installed above the second reinforcing bar, and a battery pack installation space is installed below the foot pedal. The battery pack installation space is formed by the first reinforcing bar, the second reinforcing bar, and the horizontal section. Depending on the user group, battery packs can be added in the installation space. For example, if a food delivery driver needs a longer range, more battery packs can be installed to improve the electric vehicle's range.

[0012] Furthermore, the rear swingarm includes a left rear swingarm and a right rear swingarm that extend forward and backward and are symmetrically arranged. The front ends of the left rear swingarm and the right rear swingarm are connected by a cross tube. The length of the cross tube is less than the distance between the two main beams. The middle part of the cross tube is connected to the semi-circular notch of the connecting seat. The rear end of the left rear swingarm is provided with a left rear swingarm shaft hole, and the rear end of the right rear swingarm is provided with a right rear swingarm shaft hole. The left rear swingarm shaft hole and the right rear swingarm shaft hole are connected to the axle of the rear wheel of the electric vehicle. The rear ends of the left rear swingarm and the right rear swingarm are connected to a crank rod. The crank rod can be, for example, a regular parabolic shape. The apex of the crank rod is provided with a first hinge seat connected to the shock absorber.

[0013] Furthermore, a second hinge seat is provided in the middle of the connecting rod, and the two ends of the shock absorber are hinged to the first hinge seat and the second hinge seat respectively. Since the second hinge seat is located in the middle of the connecting rod, the connecting seat is located in the middle of the third reinforcing rod, the middle of the horizontal tube is connected to the semi-circular notch of the connecting seat, and the first hinge seat is located at the top of the curved rod, the shock absorber is located in the middle of the entire electric vehicle, thereby balancing the weight of the entire vehicle body, keeping the center of gravity stable during the ride, effectively filtering road bumps and unevenness, and converting most of the impact force into the compression and rebound motion of the shock absorber, thus improving riding comfort.

[0014] Furthermore, the seat frame includes seat steel pipes that are respectively connected to the top of the two support columns and a fourth reinforcing rod that is connected between the two seat steel pipes and parallel to the connecting rod. A support diagonal rod is provided between the seat steel pipe and the support column.

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

[0016] This utility model discloses a novel integrated structure for an electric vehicle frame and shock-absorbing battery. The main beam connects the handlebar frame, seat frame, rear swingarm, and shock absorber to ensure the overall stability of the electric vehicle. First support plates are located on both sides of the rear swingarm, with a second support plate between them. Battery boxes are mounted on both the first and second support plates. The length of the first support plates can be increased according to the number of battery packs, allowing for flexible adjustment of battery position and type on both plates. A battery pack mounting space is provided below the foot pedals, supported by a first reinforcing rod and a second reinforcing rod. The design incorporates a horizontal section that encloses the vehicle, allowing for the addition of battery packs to cater to different user groups and improve the electric vehicle's range. The second hinge seat is located in the middle of the connecting rod, the connecting seat in the middle of the third reinforcing rod, and the middle of the horizontal tube connects to the semi-circular notch of the connecting seat. The first hinge seat is located at the apex of the curved rod, ensuring the shock absorber is positioned in the center of the entire electric vehicle. This balances the overall weight of the vehicle, maintaining a stable center of gravity during operation, effectively filtering road bumps and unevenness, and converting most of the impact force into the compression and rebound motion of the shock absorber, thus improving riding comfort. This novel electric vehicle frame and shock-absorbing battery integrated structure places the battery pack on both sides of the wheel, with a centrally located single shock absorber, reducing the wheelbase and resulting in a compact and aesthetically pleasing overall electric vehicle body. Attached Figure Description

[0017] Figure 1 This is a first-view schematic diagram of a novel electric vehicle frame and shock-absorbing battery integrated structure according to the present invention.

[0018] Figure 2 This is a second-view schematic diagram of a novel electric vehicle frame and shock-absorbing battery integrated structure according to the present invention.

[0019] Figure 3 This is a first-person view of the chassis without a battery box.

[0020] Figure 4 This is a second-view illustration of the vehicle frame without a battery box.

[0021] Figure 5 The front view of the vehicle frame without a battery box.

[0022] Figure 6 This is a schematic diagram of a rear horizontal crossbar.

[0023] Figure 7 This is a schematic diagram of the connector.

[0024] Figure 8 A schematic diagram of the vehicle frame for mounting the battery pack.

[0025] Figure label:

[0026] 1-Faucet holder, 101-Main pipe, 102-Head pipe,

[0027] 2-Main beam, 201-Horizontal section, 202-First inclined section, 203-Second inclined section, 204-Bending section, 205-First reinforcing bar, 206-Second reinforcing bar, 207-Third reinforcing bar

[0028] 3-Support column,

[0029] 4-Seating board frame, 401-Seating board steel pipe, 402-Fourth reinforcing bar, 403-Supporting diagonal bar,

[0030] 5-Rear swingarm, 501-Left rear swingarm, 502-Right rear swingarm, 503-Horizontal tube, 504-Left rear swingarm shaft hole, 505-Right rear swingarm shaft hole, 506-Crank rod.

[0031] 6-Connecting rod,

[0032] 7-Shock absorber,

[0033] 801 - First support plate, 802 - Second support plate

[0034] 9-Battery pack, 10-Battery box

[0035] 11-Connecting seat, 1101-Side plate, 1102-Connecting plate, 1103-Arc-shaped notch, 1104-Semi-circular notch

[0036] 1201 - First hinge seat, 1202 - Second hinge seat. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] 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, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] like Figure 1-8 As shown, a novel electric vehicle frame and shock-absorbing battery integrated structure includes a handlebar frame 1, two main beams 2 arranged symmetrically on both sides of the handlebar frame 1, a support column 3 located above the main beams 2, and a seat frame 4 connected to the support column 3 and extending rearward. A rear horizontal fork 5 connected to the rear wheel is provided between the two main beams 2. A connecting rod 6 for connecting the two support columns 3 is provided on the upper part of the support column 3. A shock absorber 7 is provided between the connecting rod 6 and the rear horizontal fork 5. A first support plate 801 is provided on each side of the rear horizontal fork 5. The lower part of the first support plate 801 is connected to the raised tail end of the main beam 2. A battery box 10 for fixing the battery pack 9 is provided above the first support plate 801.

[0042] like Figure 1 , Figure 2 , Figure 3 As shown, the headrest frame 1 includes a main tube 101 connected to the main beam 2 and a head tube 102 arranged at the front end of the main tube 101. The head tube 102 is inclined to make it easier for the rider to control the steering of the electric vehicle.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, each main beam 2 includes a horizontal section 201, a first inclined section 202 extending obliquely upward from the front end of the horizontal section 201, a second inclined section 203 curving obliquely upward from the rear end of the horizontal section 201, and a bent section 204 connected to the first inclined section 202 and extending towards the head frame 1. Smooth transitions are provided between the horizontal section 201 and the first inclined section 202, between the first inclined section 202 and the bent section 204, and between the horizontal section 201 and the second inclined section 203 to avoid stress concentration. The two bent sections 204 converge and connect to the middle of the main pipe 101. A first reinforcing rod 205 is provided between the two first inclined sections 202. The bottom end of the main pipe 101 is connected to the first reinforcing rod 205. A second reinforcing rod 206 is connected between the first inclined section 202 and the support column 3. A third reinforcing rod 207 is provided between the two horizontal sections 201.

[0044] like Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, the third reinforcing rod 207 has a connecting seat 11 in the middle. The connecting seat 11 includes two parallel side plates 1101 and a connecting plate 1102 disposed between the two side plates 1101. The height of the side plates 1101 is greater than the height of the connecting plate 1102. The top edge of the side plates 1101 is flush with the top edge of the connecting plate 1102. The part of the side plates 1101 that protrudes from the connecting plate 1102 has an arc-shaped notch 1103 for connecting with the third reinforcing rod 207. The side edge of the side plates 1101 away from the connecting plate 1102 has a semi-circular notch 1104 for connecting with the rear horizontal fork 5.

[0045] like Figure 3 , Figure 5 As shown, the front end of the first support plate 801 is fixedly connected to the support column 3. A second support plate 802 is provided between the two first support plates 801. The second support plate 802 is located above the connecting seat 11, and a battery box 10 is provided on the second support plate 802. The length of the first support plate 801 is greater than the length of the second support plate 802. The length of the first support plate 801 is increased according to the number of battery packs 9. For example, the length of the first support plate 801 can be 2-4 times the length of a single battery. For example, two battery packs are placed on the second support plate 802, and one battery pack is placed on the first support plate 801. In specific applications, the first support plates 801 are located on both sides of the rear horizontal fork 5, which is connected to the electric vehicle wheel. A second support plate 802 is provided between the two first support plates 801. Both the first support plate 801 and the second support plate 802 are provided with battery boxes 10. The battery position and battery type can be adjusted arbitrarily on the first support plate 801 and the second support plate 802.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, a foot pedal is provided above the second reinforcing rod 206, and a space for installing the battery pack 9 is provided below the foot pedal. The space for installing the battery pack 9 is formed by the first reinforcing rod 205, the second reinforcing rod 206 and the horizontal section 201. Depending on the user group, more battery packs 9 can be added to the space. For example, if a delivery driver needs a longer range, more battery packs 9 can be added to improve the range of the electric vehicle.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the rear horizontal fork 5 includes a left rear horizontal fork 501 and a right rear horizontal fork 502 that extend forward and backward and are symmetrically arranged. The front ends of the left rear horizontal fork 501 and the right rear horizontal fork 502 are connected by a horizontal tube 503. The length of the horizontal tube 503 is less than the distance between the two main beams 2. The middle part of the horizontal tube 503 is connected to the semi-circular notch 1104 of the connecting seat 11. The rear end of the left rear horizontal fork 501 is provided with a left rear horizontal fork shaft hole 504, and the rear end of the right rear horizontal fork 502 is provided with a right rear horizontal fork shaft hole 505. The left rear horizontal fork shaft hole 504 and the right rear horizontal fork shaft hole 505 are connected to the axle of the rear wheel of the electric vehicle. The rear ends of the left rear horizontal fork 501 and the right rear horizontal fork 502 are connected to a crank rod 506. The crank rod 506 can be, for example, a regular parabolic shape. The vertex of the crank rod 506 is provided with a first hinge seat 1201 connected to the shock absorber 7.

[0048] like Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 As shown, the middle of the connecting rod 6 is provided with a second hinge seat 1202. The two ends of the shock absorber 7 are respectively hinged to the first hinge seat 1201 and the second hinge seat 1202. Since the second hinge seat 1202 is located in the middle of the connecting rod 6, the connecting seat 11 is located in the middle of the third reinforcing rod 207, the middle of the horizontal tube 503 is connected to the semi-circular notch 1104 of the connecting seat 11, and the first hinge seat 1201 is located at the top of the curved rod 506, the shock absorber 7 is located in the middle of the entire electric vehicle, thereby balancing the weight of the entire vehicle body, keeping the center of gravity stable during the ride, effectively filtering road bumps and unevenness, and converting most of the impact force into the compression and rebound motion of the shock absorber 7, thus improving riding comfort.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the seat frame 4 includes seat steel pipes 401 that are respectively connected to the top of the two support columns 3 and a fourth reinforcing rod 402 that is connected between the two seat steel pipes 401 and parallel to the connecting rod 6. A support diagonal rod 403 is provided between the seat steel pipes 401 and the support columns 3.

[0050] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel integrated structure for an electric vehicle frame and shock-absorbing battery, characterized in that, It includes a headrest frame (1), two main beams (2) arranged symmetrically on both sides of the headrest frame (1), a support column (3) set above the main beams (2), a seat frame (4) connected to the support column (3) and extending backward, a rear horizontal fork (5) connected to the rear wheel is provided between the two main beams (2), a connecting rod (6) for connecting the two support columns (3) is provided on the upper part of the support column (3), a shock absorber (7) is provided between the connecting rod (6) and the rear horizontal fork (5), a first support plate (801) is provided on both sides of the rear horizontal fork (5), the lower part of the first support plate (801) is connected to the raised tail end of the main beam (2), and a battery box (10) for fixing the battery pack (9) is provided above the first support plate (801).

2. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 1, characterized in that, The head frame (1) includes a main pipe (101) connected to the main beam (2) and a head tube (102) arranged at the front end of the main pipe (101), with the head tube (102) being inclined.

3. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 2, characterized in that, Each main beam (2) includes a horizontal section (201), a first inclined section (202) extending obliquely upward from the front end of the horizontal section (201), a second inclined section (203) curving obliquely upward from the rear end of the horizontal section (201), and a bent section (204) connected to the first inclined section (202) and extending towards the head frame (1). The horizontal section (201) and the first inclined section (202), the first inclined section (202) and the bent section (204), and the horizontal section (201) are connected to each other. 1) A smooth transition is provided between the first inclined section (203) and the second inclined section (204). The two bent sections (204) are connected to the middle of the main pipe (101). A first reinforcing rod (205) is provided between the two first inclined sections (202). The bottom end of the main pipe (101) is connected to the first reinforcing rod (205). A second reinforcing rod (206) is connected between the first inclined section (202) and the support column (3). A third reinforcing rod (207) is provided between the two horizontal sections (201).

4. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 3, characterized in that, The third reinforcing rod (207) has a connecting seat (11) in the middle. The connecting seat (11) includes two parallel side plates (1101) and a connecting plate (1102) between the two side plates (1101). The height of the side plate (1101) is greater than the height of the connecting plate (1102). The top edge of the side plate (1101) is flush with the top edge of the connecting plate (1102). The part of the side plate (1101) that protrudes from the connecting plate (1102) has an arc-shaped notch (1103) for connecting with the third reinforcing rod (207). The side edge of the side plate (1101) away from the connecting plate (1102) has a semi-circular notch (1104) for connecting with the rear horizontal fork (5).

5. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 4, characterized in that, The front end of the first support plate (801) is fixedly connected to the support column (3). A second support plate (802) is provided between the two first support plates (801). The second support plate (802) is located above the connecting seat (11). A battery box (10) is provided on the second support plate (802). The length of the first support plate (801) is greater than the length of the second support plate (802).

6. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 3, characterized in that, A foot pedal is provided above the second reinforcing rod (206), and a space for installing the battery pack (9) is provided below the foot pedal. The space for installing the battery pack (9) is formed by the first reinforcing rod (205), the second reinforcing rod (206), and the horizontal section (201).

7. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 4, characterized in that, The rear horizontal fork (5) includes a left rear horizontal fork (501) and a right rear horizontal fork (502) that extend forward and backward and are symmetrically arranged. The front ends of the left rear horizontal fork (501) and the right rear horizontal fork (502) are connected by a horizontal tube (503). The length of the horizontal tube (503) is less than the distance between the two main beams (2). The middle part of the horizontal tube (503) is connected to the semi-circular notch (1104) of the connecting seat (11). The rear end of the left rear horizontal fork (501) The left rear horizontal fork shaft hole (504) is provided, and the rear end of the right rear horizontal fork (502) is provided with a right rear horizontal fork shaft hole (505). The left rear horizontal fork shaft hole (504) and the right rear horizontal fork shaft hole (505) are connected to the axle of the rear wheel of the electric vehicle. The rear ends of the left rear horizontal fork (501) and the right rear horizontal fork (502) are connected with a crank (506). The top of the crank (506) is provided with a first hinge seat (1201) connected to the shock absorber (7).

8. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 7, characterized in that, The middle part of the connecting rod (6) is provided with a second hinge seat (1202), and the two ends of the shock absorber (7) are respectively hinged to the first hinge seat (1201) and the second hinge seat (1202).

9. The novel electric vehicle frame and shock-absorbing battery integrated structure according to claim 1, characterized in that, The seat frame (4) includes a seat steel pipe (401) connected to the top of the two support columns (3) respectively, and a fourth reinforcing rod (402) connected between the two seat steel pipes (401) and parallel to the connecting rod (6). A support diagonal rod (403) is provided between the seat steel pipe (401) and the support column (3).

Images