Straddle type large storage battery electric vehicle

Abstract

The bestriding type large storage battery electric vehicle comprises a frame vehicle frame and an integral storage battery, the frame vehicle frame comprises a handlebar pipe, a rear bottom fork and a bottom supporting beam, the front end of the bottom supporting beam is fixedly connected to the handlebar pipe, and the rear bottom fork is movably connected to the rear end side of the bottom supporting beam. The bottom supporting beam is bent towards the lower side, and a straight-rod-shaped horizontally-arranged mounting part is formed at the bottom end of the bottom supporting beam; a 7-shaped top supporting beam is arranged between the bibcock pipe and the rear bottom fork, the top supporting beam is located on the upper side of the bottom supporting beam, the top supporting beam is provided with a straight rod part and a downward extending part, the straight rod part and the mounting part are arranged in parallel, the front end of the straight rod part is fixedly connected with the bibcock pipe, the downward extending part extends out towards the lower side, and the rear end of the mounting part is fixedly connected with the lower end side of the downward extending part; a mounting cavity is formed between the top supporting beam and the bottom supporting beam, a mounting opening allowing the storage battery to enter the mounting cavity is formed in the side, in the width direction of the electric vehicle, of the mounting cavity, and the storage battery enters and exits the mounting cavity in the width direction of the electric vehicle.

Description

Technical Field

[0001] The invention relates to an electric vehicle, in particular to a straddle-type electric vehicle with a large battery. Background Art

[0002] A straddle-type vehicle is relative to a pedal-type vehicle. When in use, the rider rides the electric vehicle in a straddle-type manner. In order to support the rider's feet, a rod-shaped or block-shaped footrest is provided on opposite sides of the width direction of the straddle-type vehicle, while a pedal-type vehicle has a plate-shaped footrest in the middle of the frame. Straddle-type vehicles are generally functional vehicles with requirements for high speed and high horsepower. Straddle-type vehicles are usually powered by internal combustion engines, and straddle-type vehicles powered by electricity are rare.

[0003] A Chinese patent document (publication number: CN 210822590U) discloses a straddle-type electric vehicle beam frame, comprising a front vertical tube, left and right upper main frame tubes, a front main frame tube, left and right rear main frame tubes, and left and right front frame vertical tubes; the left and right upper main frame tubes extend rearward from the front vertical tube; the front main frame tube extends downward from the front vertical tube; the front ends of the left and right rear main frame tubes are respectively fixedly connected to the left and right sides of the lower end of the front main frame tube, and the rear ends of the left and right rear main frame tubes are respectively fixedly connected to the rear parts of the left and right upper main frame tubes; the left and right front frame vertical tubes are located behind the front vertical tube, and the lower ends of the left and right front frame vertical tubes are respectively fixedly connected to the left and right sides of the upper part of the front main frame tube, and the upper ends of the left and right front frame vertical tubes are respectively fixedly connected to the front parts of the left and right upper main frame tubes. The beam frame type frame of the straddle-type electric vehicle provided by the present invention has high frame strength, is stable and reliable, and is light in weight.

[0004] This type of frame is used on a straddle-type electric vehicle. A relatively large space is formed on the rear side of the frame stem tube for loading a large battery. However, the overall layout of the frame is not reasonable and cannot provide good support for the battery. The overall strength of the frame is not high. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a straddle-type large-battery electric vehicle, which can provide stable support for the battery while ensuring sufficient strength, and is suitable for installing and disassembling the integral battery.

[0006] In order to solve the technical problems, the technical solution of the present invention is as follows: a straddle-type large battery electric vehicle comprises a frame-type vehicle frame and an integral battery, the vehicle frame comprises a handlebar tube, a rear flat fork and a bottom support beam, the front end of the bottom support beam is fixedly connected to the handlebar tube, the rear flat fork is movably connected to the rear end side of the bottom support beam, and is characterized in that the bottom support beam is bent toward the lower side, and a straight rod-shaped horizontally arranged mounting portion is formed at the bottom end of the bottom support beam; a "7"-shaped top support beam is provided between the handlebar tube and the rear flat fork, the top support beam is located on the upper side of the bottom support beam, the top support beam has a straight rod portion and a downward extension portion, the straight rod portion and the mounting portion are arranged in parallel, the front end of the straight rod portion is fixedly connected to the handlebar tube, the downward extension portion extends toward the lower side, and the rear end of the mounting portion is fixedly connected to the lower end side of the downward extension portion; an mounting cavity is formed between the top support beam and the bottom support beam, and an mounting opening for the power battery to enter the mounting cavity is formed on one side of the mounting cavity in the width direction of the electric vehicle, and the battery enters and exits the mounting cavity in the width direction of the electric vehicle.

[0007] The large battery is relative to the on-board battery on the scooter. This large battery has a larger volume and capacity to provide sufficient power for the vehicle. Moreover, this battery is made into an integral structure, so that the battery can be installed in the installation cavity as a whole, or replaced from the installation cavity. After the battery is installed in the installation cavity, the support part on the bottom support beam generally provides the main load-bearing support for the battery.

[0008] Furthermore, a support rail is provided on the bottom surface of the installation cavity, and the support rail is provided along the width direction of the electric vehicle. A plurality of rollers are provided at the bottom of the battery, and the rollers are used to roll along the length direction of the support rail to enable the battery to enter and exit the installation cavity. The bottom of the installation cavity is formed by the provision of the support rail, and the provision of the roller rail and the support rail facilitates the installation of heavy batteries, making the installation and removal of the battery easy and convenient, and facilitating the installation of the battery in place.

[0009] Furthermore, a baffle extending upward is fixed to one end of the support rail away from the installation opening, and an elastic anti-collision convex head is provided on the side of the baffle facing the installation opening. The baffle can limit the installation of the battery, so that the battery can be safely installed in place.

[0010] Furthermore, a guide wheel is protrudingly provided on the bottom support beam, the guide wheel is arranged horizontally, the guide wheel extends into the installation cavity at the side of the installation cavity, and the guide wheel is used to roll and contact with the side of the battery. The arrangement of the guide wheel can further improve the convenience of battery installation, and can well adapt to the installation of large-volume and heavy-weight integral batteries.

[0011] Furthermore, there are two bottom support beams, which are arranged in parallel, and an L-shaped support portion is formed on the bottom support beam, and the installation portion is a part of the support portion; there is one top support beam, which is located between the two bottom support beams, and support rods approximately in the shape of [ are fixedly connected on opposite sides of the straight rod portion of the top support beam, and a vertical pole is fixedly connected between the rear ends of the two support rods and the rear ends of the installation portions of the two bottom support beams, respectively, and the vertical pole is arranged vertically, and the support portion, the support rod and the vertical pole enclose an installation cavity approximately in the shape of a quadrangular prism. By arranging the support rod and the vertical pole, and by having two bottom support beams, it is convenient to form a structurally complete installation cavity on the frame, which can accommodate an integral battery. The arrangement of the vertical pole also adapts to the spatial position arrangement of the bottom support beam and the arrangement of the support rod. By arranging a top support beam, the overall weight of the frame can be effectively reduced on the basis of ensuring the overall strength of the frame.

[0012] Furthermore, the front upper ends of the two bottom support beams are connected by a horizontally arranged connecting rod, the lower end of a top rod is connected to the connecting rod, and the upper end of the top rod is connected to the straight rod portion of the top support beam. By arranging the connecting rod and the top rod, the bottom support beam and the top support beam can be connected into a whole, which can well ensure the overall strength of the frame.

[0013] Furthermore, the front end of the support frame is fixedly connected to the straight rod portion of the top support beam, and the rear end of the support frame extends into the upper side of the rear fork, and the rear fork and the support frame are connected via a shock absorber. The support frame is provided to facilitate the provision of a seat cushion for the rider to sit on the frame, and the position stability of the seat cushion is good.

[0014] Furthermore, the front end of the support rod is fixedly connected to the connecting rod, and the rear end of the support rod is fixedly connected to the support frame. This is well adapted to the overall structural setting of the frame, the arrangement is reasonable, and the two ends of the support rod have a firm connection position.

[0015] Furthermore, a mounting frame in the shape of [ is fixedly connected to the outer side surface of the vertical pole, and the outer side surfaces of the corresponding mounting frame, support rod and support part are flush, and a loose-leaf is connected to the mounting frame at the mounting opening, and a blocking rod is connected to the loose-leaf, and the outer end of the blocking rod is detachably connected to the corresponding support part through a knob, and the blocking rod is used to block the battery in the mounting cavity. Through the arrangement of the mounting frame, the overall structure of the mounting cavity is complete, which is convenient for forming a relatively closed mounting cavity, and is convenient for the arrangement of the side panels of the mounting cavity, which can provide good protection for the battery.

[0016] Furthermore, an L-shaped support plate is fixedly connected to the opposite side surfaces of the lower extension rod, and the outer side spacing of the two support plates corresponds to the size of the fork opening at the front end of the rear flat fork. The front end fork opening of the rear flat fork is forked on the two support plates, and the pivot passes through the front end of the rear flat fork, the two support plates and the lower extension. Through the arrangement of the two support plates, a connection structure adapted to the size of the fork opening at the front end of the rear flat fork can be formed at the position of the lower extension rod, so that the front end of the rear flat fork can be stably connected.

[0017] Compared with the prior art, the present invention has the following beneficial effects: in the electric vehicle, an installation cavity is formed at the middle position of the frame to realize the installation of the integral battery, so that the installation stability of the battery can be guaranteed. Through the arrangement of the bottom support beam and the top support beam, the structure is reasonable, and it is convenient to form a firm installation structure on the frame, which can provide good protection for the battery. Moreover, a larger installation cavity can be arranged, so that the volume of the battery is large enough to provide sufficient power for the riding of the electric vehicle, meeting the riding characteristics of the straddle-type electric vehicle. By providing an installation port on one side of the installation cavity along the width direction of the electric vehicle, the battery enters and exits the installation cavity in the width direction of the electric vehicle, which can well adapt to the installation and disassembly of the integral battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the frame part of this electric vehicle.

[0019] Figure 2 yes Figure 1 The structure diagram of the middle part after the explosion.

[0020] Figure 3 yes Figure 1 The structure diagram after removing the battery and tool box.

[0021] Figure 4 yes Figure 3 The structure diagram of the middle part after the explosion.

[0022] Figure 5 It is a structural diagram of the bottom support beam.

[0023] Figure 6 It is a structural diagram of the top support beam.

[0024] In the figure, 1, faucet pipe; 2, baffle; 3, bottom support beam; 31, support part; 311, installation part; 4, battery; 5, rear fork; 6, shock absorber; 7, connecting plate; 8, support frame; 9, diagonal rod; 10, top support beam; 101, straight rod part; 102, lower extension part; 11, tool box; 12, support plate; 13, knob; 14, roller; 15, support rail; 151, baffle; 152, anti-collision boss; 16, installation frame; 17, vertical pole; 18, support pole; 19, connecting rod; 20, top rod; 21, installation cavity. DETAILED DESCRIPTION

[0025] In conjunction with the drawings of the specification, the straddle-type large battery electric vehicle is generally a two-wheel structure, and its structure includes a frame-type frame and a battery 4, Figure 1 , 2 As shown in the figure, the battery 4 is an integral structure. The frame serves as the strength foundation of the electric vehicle, and the battery 4 provides power for riding the electric vehicle. The frame includes a handlebar tube 1, a rear fork 5, and a bottom support beam 3. A handlebar shaft is rotatably mounted in the handlebar tube 1, and a front wheel is rotatably mounted at the lower end of the handlebar shaft; the front end of the rear fork 5 is movably connected, and the rear end of the rear fork 5 is rotatably connected to the rear wheel; the bottom support beam 3 provides strength support in the front and rear directions of the electric vehicle, and the bottom support beam 3 can also provide the main weight support for the battery 4. The front end of the bottom support beam 3 is generally welded and fixedly connected to the handlebar tube 1, and the rear fork 5 is movably connected to the rear end side of the bottom support beam 3.

[0026] The bottom support beam 3 is bent downward, and can provide a larger space in the height direction of the electric vehicle. A straight rod-shaped mounting portion 311 is formed at the bottom end of the bottom support beam 3, and the battery 4 is placed and supported on the mounting portion 311. A "7"-shaped top support beam 10 is provided between the faucet pipe 1 and the rear flat fork 5, and the top support beam 10 is located on the upper side of the bottom support beam 3. The top support beam 10 has a straight rod portion 101 and a downward extension portion 102 connected as one body. The straight rod portion 101 and the downward extension portion 102 are both straight rod-shaped. The straight rod portion 101 is located above the mounting portion 311, and the straight rod portion 101 and the mounting portion 311 are arranged in parallel. The mounting portion 311 is generally arranged in the horizontal direction. According to the actual setting requirements, the straight rod portion 101 is slightly inclined, and the front end of the straight rod portion 101 is higher than the rear end. The front end of the straight rod portion 101 is welded and fixedly connected to the faucet pipe 1, the lower extension portion 102 extends downward, and the lower extension portion 102 extends into the position of the mounting portion 311, and the rear end of the mounting portion 311 is welded and fixedly connected to the lower end side of the lower extension portion 102. An installation cavity 21 is formed between the top support beam 10 and the bottom support beam 3. Due to the shapes and arrangement positions of the top support beam 10 and the bottom support beam 3, there is a relatively large space between the top support beam 10 and the bottom support beam 3 to arrange the installation cavity 21. The size of the installation cavity 21 in the vertical direction is relatively large. In the front and rear directions of the electric vehicle, according to actual needs, the length of the straight rod portion 101 and the mounting portion 311 can be set to meet the size requirements of the installation cavity 21 in the front and rear directions of the electric vehicle.

[0027] A tool box 11 is fixed between the faucet pipe 1 and the straight rod portion 101 on the top support beam 10 . The tool box 11 is located on the upper side of the straight rod portion 101 .

[0028] The battery 4 is externally an integral structure. The battery 4 can be made into one piece or multiple individual batteries electrically connected together by wires. These individual batteries are installed in a closed housing and electrically connected to the motor on the electric vehicle through wires. In order to accommodate the installation of such a large-sized and heavy battery 4, an installation opening is formed on one side of the installation cavity 21 in the width direction of the electric vehicle to allow the battery 4 to enter the installation cavity 21. Usually, such an installation opening is unilaterally arranged at the installation cavity 21, and the battery 4 enters and exits the installation cavity 21 in the width direction of the electric vehicle.

[0029] A support rail 15 is provided on the bottom surface of the installation cavity 21. The figure shows that there are two support rails 15. The support rails 15 are arranged along the width direction of the electric vehicle. A groove is provided on the support rail 15. A plurality of rollers 14 are provided at the bottom of the battery 4. These rollers 14 are arranged in two rows. One row of rollers 14 is used to roll directly supported in the groove on one support rail 15. The rollers 14 are used to roll in the length direction of the support rail 15 to enable the battery 4 to enter and exit the installation cavity 21. A guide wheel 22 is protrudingly provided on the bottom support beam 3. Specifically, the guide wheel 22 is provided on the upper side of the installation portion 311 of the bottom support beam 3. The guide wheel 22 is arranged horizontally. The guide wheel 22 extends into the installation cavity 21 at the side of the installation cavity 21. The guide wheel 22 is used to roll with the side of the battery 4. The guide wheel 22 and the roller 14 have the same structure. In order to facilitate the installation of the battery 4 in the installation cavity 21, an upwardly extending baffle 151 is fixed to the end of the support rail 15 away from the installation opening. The support rail 15 can be a sheet-shaped body, and the baffle 151 is formed by bending and deforming the corresponding end of the support rail 15. An elastic anti-collision protrusion 152 is provided on the side of the baffle 151 facing the installation opening.

[0030] There are two bottom support beams 3, which are arranged in parallel and spaced apart in the width direction of the electric vehicle. The bottom support beams 3 are bent and deformed to form an L-shaped support portion 31, and the mounting portion 311 is a part of the support portion 31. There is one top support beam 10, which is located between the two bottom support beams 3 in the width direction of the electric vehicle. The top support beam 10 and the bottom support beam 3 play a major role in strength support in the front-rear direction of the electric vehicle. Support rods 18 approximately in the shape of [ are fixedly connected to the opposite sides of the straight rod portion 101 of the top support beam 10, and the support rods 18 extend in the width direction of the electric vehicle. A vertical rod 17 is fixedly connected between the rear ends of the two support rods 18 and the rear ends of the mounting portions 311 of the two bottom support beams 3, and the vertical rod 17 is arranged vertically. The support portion 31, the support rod 18 and the vertical rod 17 enclose an installation cavity 21 approximately in the shape of a quadrangular prism. By providing two support rods 18 and two vertical rods 17, the width dimension of the top support beam 10 is extended, thereby providing strength support for the installation cavity 21 in the width direction of the electric vehicle.

[0031] In addition to being fixedly connected at the front ends of the two bottom support beams 3 by the faucet pipe 1, a connecting rod 19 is also horizontally arranged between the front upper ends of the two bottom support beams 3, and the two ends of the connecting rod 19 are respectively fixed by welding to realize the fixed connection between the two bottom support beams 3. The lower end of an inclined top rod 20 is fixedly connected to the connecting rod 19 by welding, and the upper end of the top rod 20 is connected to the straight rod portion 101 of the top support beam 10 by welding, thereby realizing the support of the top support beam 10.

[0032] A seat cushion for the rider is provided on the top of the electric vehicle, and the seat cushion is placed on a double-rod support frame 9, and the two front ends of the support frame 9 are fixedly connected to the opposite sides of the straight rod portion 101 of the top support beam 10 by welding. The rear end of the support frame 9 extends into the upper side of the rear flat fork 5, and the rear end of the support frame 9 is fixedly connected to the lower extension portion 102 of the top support beam 10 through two inclined rods 9. A connecting plate 7 is welded and fixed between the upper end of the inclined rod 9 and the support frame 9, and the rear flat fork 5 and the support frame 9 are connected through a shock absorber 6, the upper end of the shock absorber 6 is pivotally connected to the connecting plate 7, and the lower end of the shock absorber 6 is pivotally connected to the rear flat fork 5. The front end of the support rod 18 is welded and fixedly connected to the connecting rod 19, and the rear end of the support rod 18 is fixedly connected to the support frame 9.

[0033] A mounting frame 16 in the shape of [ is fixedly connected to the outer side of the vertical pole 17. The corresponding outer side surfaces of the mounting frame 16, the support rod 18 and the support portion 31 are flush, so that a relatively regular quadrangular prism support frame is formed around the mounting cavity 21. Four side plates are welded and fixed on the four inner side surfaces of the support frame, so as to form a hollow quadrangular prism-shaped mounting cavity 21. In order to limit the position of the battery 4, a loose-leaf is connected to the mounting frame 16 at the mounting port, and a sheet-like long strip-shaped blocking rod 2 is connected to the loose-leaf. The outer end of the blocking rod 2 is detachably connected to the corresponding support portion 31 through a knob 13. The blocking rod 2 is used to block and limit the battery 4 in the mounting cavity 21.

[0034] An L-shaped support plate 12 is welded and fixed to the opposite side surfaces of the lower extension rod, and the interval between the opposite outer sides of the two support plates 12 corresponds to the size of the fork at the front end of the rear fork 5. The fork at the front end of the rear fork 5 is forked to the two support plates 12. The pivot passes through the front end of the rear fork 5, the two support plates 12 and the lower extension 102, so that the front end of the rear fork 5 and the lower extension 102 of the top support beam 10 are movably hinged together.

Claims

1. A straddle-type large battery electric vehicle, comprising a frame-type frame and an integral battery, the frame comprising a stem tube, a rear flat fork and a bottom support beam, the front end of the bottom support beam is fixedly connected to the stem tube, the rear flat fork is movably connected to the rear end side of the bottom support beam, characterized in that: The bottom support beam is bent toward the downward side, and a straight rod-shaped horizontally arranged mounting portion is formed at the bottom end of the bottom support beam; a "7"-shaped top support beam is provided between the faucet tube and the rear flat fork, the top support beam is located on the upper side of the bottom support beam, the top support beam has a straight rod portion and a downward extending portion, the straight rod portion and the mounting portion are arranged in parallel, the front end of the straight rod portion is fixedly connected to the faucet tube, the downward extending portion extends toward the downward side, and the rear end of the mounting portion is fixedly connected to the lower end side of the downward extending portion; an mounting cavity is formed between the top support beam and the bottom support beam, and an mounting opening for the power battery to enter the mounting cavity is formed on one side of the mounting cavity in the width direction of the electric vehicle, and the battery enters and exits the mounting cavity in the width direction of the electric vehicle.

2. The straddle-type large battery electric vehicle according to claim 1, characterized in that: A support rail is arranged on the bottom surface of the installation cavity, and the support rail is arranged along the width direction of the electric vehicle. A plurality of rollers are arranged at the bottom of the battery, and the rollers are used to roll in the length direction of the support rail to enable the battery to enter and exit the installation cavity.

3. The straddle-type large battery electric vehicle according to claim 2, characterized in that: A baffle extending upward is fixed to one end of the support rail away from the installation opening, and an elastic anti-collision convex head is arranged on the side of the baffle facing the installation opening.

4. The straddle-type large battery electric vehicle according to claim 2, characterized in that: A guide wheel is protrudingly provided on the bottom support beam, the guide wheel is arranged horizontally, and the guide wheel extends into the installation cavity at the side of the installation cavity, and the guide wheel is used for rolling contact with the side of the battery.

5. The straddle-type large battery electric vehicle according to claim 1, characterized in that: There are two bottom support beams, which are arranged in parallel. An L-shaped support portion is formed on the bottom support beam, and the mounting portion is a part of the support portion. There is one top support beam, which is located between the two bottom support beams. Support rods approximately in the shape of [ are fixedly connected on opposite sides of the straight rod portion of the top support beam, and a vertical rod is fixedly connected between the rear ends of the two support rods and the rear ends of the mounting portions of the two bottom support beams. The vertical rods are arranged vertically, and the support portion, the support rod and the vertical rod form a mounting cavity approximately in the shape of a quadrangular prism.

6. The straddle-type large battery electric vehicle according to claim 5, characterized in that: The front upper ends of the two bottom support beams are fixedly connected by a horizontally arranged connecting rod, the lower end of a top rod is fixedly connected to the connecting rod, and the upper end of the top rod is fixedly connected to the straight rod portion of the top support beam.

7. The straddle-type large battery electric vehicle according to claim 6, characterized in that: The front end of the support frame is fixedly connected to the straight rod portion of the top support beam, and the rear end of the support frame extends into the upper side of the rear flat fork. The rear flat fork and the support frame are connected via a shock absorber.

8. The straddle-type large battery electric vehicle according to claim 7, characterized in that: The front end of the support rod is fixedly connected to the connecting rod, and the rear end of the support rod is fixedly connected to the supporting frame.

9. The straddle-type large battery electric vehicle according to claim 5, characterized in that: A mounting frame in the shape of [ is fixedly connected to the outer side surface of the vertical pole, and the outer side surfaces of the corresponding mounting frame, support rod and supporting part are flush with each other. A loose-leaf is connected to the mounting frame at the mounting opening, and a blocking rod is connected to the loose-leaf. The outer end of the blocking rod is detachably connected to the corresponding supporting part through a knob, and the blocking rod is used to block the battery in the mounting cavity.

10. The straddle-type large battery electric vehicle according to any one of claims 1 to 9, characterized in that: An L-shaped support plate is fixedly connected to the opposite side surfaces of the lower extension rod respectively, the outer side surface spacing of the two support plates corresponds to the size of the front end fork of the rear flat fork, the front end fork of the rear flat fork is forked on the two support plates, and the pivot is connected to the front end of the rear flat fork, the two support plates and the lower extension part.

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