Miniature electric automobile

Abstract

The utility model discloses a miniature electric vehicle which comprises a vehicle underframe, a main driver seat and a co-driver seat, the main driver seat and the co-driver seat are arranged on the vehicle underframe, two rear wheels are of two independent hub motor structures, and the hub motors are installed on oblique suspensions through independent rear axles. At least one battery bin is arranged below the main driver seat and the co-driver seat and at the position, between the two independent rear axles, of the tail of the vehicle underframe, battery packs are arranged in the battery bins and located on the vehicle underframe, and each battery pack can independently supply power to the corresponding hub motor. According to the utility model, the design scheme that the plurality of battery packs are independently detachable and are independently charged and supplied with power is adopted, so that the electric energy supply of the miniature electric automobile is continuous; by adopting the split type rear axle design and the hub motor scheme, the position space of the original integral type rear axle on the vehicle chassis is completely released, so that the mounting space of the battery pack is greatly increased, the design capacity of the battery pack is improved, and the endurance of a single whole is improved.

Description

Technical Field

[0001] The utility model relates to an electric vehicle, in particular to a micro electric vehicle. Background Art

[0002] Electric vehicles are vehicles that are powered by an onboard power supply and use an electric motor to drive the wheels. They are widely accepted and marketed for their environmental protection and energy saving.

[0003] As an important branch of new energy vehicles, micro electric vehicles offer advantages such as low price and easy maintenance. Existing micro electric vehicles typically have a single battery pack located in the middle of the vehicle chassis, making it difficult to replace. Furthermore, when driving on poor road conditions, foreign objects on the road can easily damage the battery pack. When a single battery pack is depleted, it needs to be recharged before continuing on the road, which is extremely inconvenient for frequent users. Furthermore, existing micro electric vehicles have an integral rear axle structure with the motor located on the rear axle. This compresses the space on the chassis for accommodating the battery pack, preventing the battery pack from increasing in capacity, thus affecting the vehicle's range on a single charge. Utility Model Content

[0004] The utility model aims to solve the existing technical problem by providing a micro electric vehicle, which adopts a design scheme of multiple battery packs that are independently detachable, independently charged and powered, so that the power supply of the micro electric vehicle is continuous, and the problem of the vehicle being unusable due to charging is eliminated; the installation positions of the multiple battery packs avoid the middle position of the vehicle chassis, thereby improving driving safety; the split rear axle design and the solution of using hub motors completely release the position space of the original integral rear axle on the vehicle chassis, thereby greatly increasing the installation space of the battery pack, and then increasing the design capacity of the battery pack, thereby improving the overall endurance of the single vehicle.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] The utility model discloses a micro electric vehicle, comprising a chassis, two front wheels and two rear wheels arranged on both sides of the chassis, a main driver's seat and a co-driver's seat arranged on the chassis, and a braking system. The two rear wheels are two independent hub motor structures, and the hub motors are mounted on an oblique suspension through an independent rear axle. The oblique suspension is arranged on the chassis, and at least one battery compartment is respectively provided below the main driver's seat and the co-driver's seat and at a position at the rear of the chassis between the two independent rear axles. A battery pack is provided in the battery compartment, and the battery pack is located on the chassis. Each battery pack can independently power the hub motor.

[0007] Compared with the existing technology, the micro electric vehicle of the present invention is provided with multiple battery packs, and each battery pack can independently power the hub motor. Therefore, when one of the battery packs is exhausted, it can be removed and charged, and the remaining battery packs continue to provide power to the hub motor, realizing the sustainability of the micro electric vehicle's driving time, which is suitable for the use scenario of urban taxis; the rear wheels are connected to the chassis with an independent rear axle, so that the space between the two independent rear axles on the chassis is released, which provides the possibility of designing at least one battery compartment at the rear of the chassis, thereby maximizing the battery pack capacity of the entire vehicle; the battery pack is above the chassis, that is, the battery pack is protected by the chassis, and when driving in a poor road environment, it will not directly contact the bumpy road surface and cause potholes; in addition, since the micro electric vehicle of the present invention is small in size, in order to improve space utilization, the main driver's seat and the co-driver's seat are deliberately designed to be staggered front and back.

[0008] The brake system includes a brake pedal, a front brake hydraulic cylinder and a rear brake hydraulic cylinder. The brake pedal is hinged to the vehicle frame. By stepping on the brake pedal, the brake pedal is flipped around the hinge position, and then the front brake push rod and the rear brake push rod on the brake pedal push the piston of the front brake hydraulic cylinder and the piston of the rear brake hydraulic cylinder respectively, thereby achieving braking of the front and rear wheels; the distance between the piston of the front brake hydraulic cylinder and the front brake push rod is smaller than the distance between the piston of the rear brake hydraulic cylinder and the rear brake push rod.

[0009] Since the left and right wheelbases and front and rear wheelbases of the micro electric vehicle of the present invention are small, and the center of gravity of the vehicle is biased towards the middle and rear part of the vehicle, in order to eliminate the risk of vehicle loss of control caused by braking, the synchronization of the front and rear wheel brakes is staggered. When the brake pedal is stepped on, the front brake assembly starts working first, followed by the rear brake assembly, thereby avoiding vehicle skidding and braking loss of control.

[0010] The battery packs under the main driver's seat and the co-driver's seat are respectively facing the main driver's door and the co-driver's door, and the main driver's door and the co-driver's door protect the battery packs; the micro electric vehicle is also provided with a rear door, and the rear door covers and protects at least one battery compartment at the rear of the vehicle chassis between two independent rear axles.

[0011] In order to maximize the capacity of the battery pack and not waste any space, the battery compartment has no cover. Therefore, we cleverly block the battery pack through the main driver's door and the co-pilot door, so that the battery pack is well protected. Moreover, the main driver's door, co-pilot door and rear door of the micro electric vehicle of the present invention are sheet metal parts made of metal, thereby improving the protection capability of the battery pack in each position.

[0012] The battery pack can be pulled out and arranged in the battery compartment, including a battery shell, a wheel frame assembly and a support frame assembly arranged at the bottom of the battery shell that can be flipped, folded, retracted or opened, the wheel frame assembly is provided with a roller, and the support frame assembly is provided with a support block; the bottom of the battery shell is also provided with a slide rail, and the slide rail corresponds to the pulley on the slide pad provided in the battery compartment.

[0013] The wheel frame assembly and the support frame assembly enable the battery pack of the present invention to achieve a function of free movement, so that when the battery pack is taken out, it can be conveniently moved to a charging position.

[0014] The top end of the battery case is provided with a reversible handle that can be raised or lowered. When the handle is raised, it can easily move the battery pack. When the handle is lowered, it becomes the outer frame of the battery case, also playing a certain protective role for the battery case.

[0015] The battery pack is connected to the vehicle's circuit system through a battery connector. The battery connector includes a sub-plug provided on the battery pack and a female plug provided on the vehicle frame that matches the sub-plug. An elastic sleeve is provided between the female plug and the vehicle frame.

[0016] By providing an elastic sleeve, a flexible connection structure is formed at the plug-in position of the battery pack and the circuit system, preventing the battery connector from being damaged due to the weight stress of the battery pack being concentrated on the battery connector when the vehicle is driving on bumpy roads.

[0017] The wheel frame assembly includes a left wheel frame, a right wheel frame and a connecting plate connecting the left wheel frame and the right wheel frame, the left wheel frame and the right wheel frame are respectively provided with rollers, and the left wheel frame and the right wheel frame are respectively provided with coaxial pivot shafts, the pivot shafts are pivotally connected to the pivot seats, and a torsion spring is sleeved on the pivot shafts, which has an elastic force on the wheel frame assembly to always rotate in the retracting direction; a limit rod is also provided between the left wheel frame and the right wheel frame, and the limit rod is limited by the limit assembly, so that the wheel frame assembly is in a retracted or opened state.

[0018] Through the torsion spring, the limit assembly and the limit rod, the folding of the wheel frame assembly is automated. When the wheel frame assembly is folded under the elastic force of the torsion spring, the wheel frame assembly flips around the pivot axis and flips toward the side of the battery shell. This flipping impact has a certain impact on the battery shell. In order to protect the battery shell from damage, the utility model adds a connecting plate, and corresponding connecting grooves and wheel grooves are set on the side of the battery shell. When the wheel frame assembly is flipped into place, the connecting plate matches in the connecting groove and the roller matches in the wheel groove.

[0019] The limit assembly includes a limit block and an elastic member, the limit block is hinged on the pivot seat, and a limit slot and a pressure plate are provided on the limit block, the limit slot corresponds to a matching limit rod, and the support frame assembly is provided with a driving member facing the pressure plate. When the support assembly is retracted, the driving member squeezes the pressure plate to flip downward around the hinge point of the limit block and the pivot seat, thereby causing the limit slot to flip upward, and then causing the limit rod locked in the limited slot to disengage from the limit slot, and the wheel frame assembly is in a retracted state; the elastic member is facing the pressure plate and is in the reverse position of the driving member, and has a reverse force on the pressure plate. When the driving member leaves the pressure plate and loses the squeezing force on the pressure plate, the elastic member causes the pressure plate to flip upward around the hinge point. At the same time, when the wheel frame assembly is manually flipped to an open state, the limit rod just falls into the limit slot.

[0020] The limiting component of the utility model is cleverly designed and realizes automatic retraction of the wheel frame component through the lever principle, with low cost and good effect.

[0021] The limiting groove is formed by an upper extending block and a lower extending block arranged at the front end of the limiting block, and the outer corners of the upper extending block and the lower extending block have rounded corners.

[0022] The elastic member is a U-shaped structure, comprising a fixed arm and an elastic arm, and the elastic arm and the fixed arm are transitionally connected via an arc plate.

[0023] The support frame assembly includes a support arm, the support block is at one end of the support arm, and a hinge shaft is provided at the other end of the support arm. The two ends of the hinge shaft are respectively passed through two hinge seats, and a torsion spring is also sleeved on the hinge shaft. The torsion spring has an elastic force on the support arm to always rotate in the opening direction.

[0024] When the support frame assembly and the wheel frame assembly are in the open state, the distance between the battery pack and the ground is consistent with the distance between the battery compartment and the ground, so that when the battery pack is moved to the battery compartment position by the handle, the battery installation operation can be completed by simply pushing the battery pack into the battery compartment, which is labor-saving and simple.

[0025] The sliding pad is provided with a guide inclined plate. When the battery pack is pushed toward the battery compartment, the support block on the support arm is blocked by the guide inclined plate and guided by the force, so that the support frame is flipped inward and retracted.

[0026] The design of the guide ramp allows the support frame assembly to automatically flip and retract when the battery pack is pushed into the battery compartment, thereby triggering the limit assembly to automatically flip and retract the wheel frame assembly, thereby improving the convenience of battery installation.

[0027] The beneficial effects of the utility model are:

[0028] Compared with the prior art, the micro electric vehicle has independent charging ports for each battery pack, and has the function of independently supplying power to the hub motor, so that the micro electric vehicle can continuously maintain the endurance capability, and is suitable for city rental; the unique independent rear axle design scheme releases the space of the rear axle position, provides the possibility of increasing the battery compartment, and thus increases the endurance capability; the battery pack is above the vehicle chassis, avoids being bumped by stones on the ground, and greatly improves the safety of the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a perspective view of one view angle of the micro electric vehicle of the utility model;

[0030] Figure 2 is a perspective view of another view angle of the micro electric vehicle of the utility model;

[0031] Figure 3 is a perspective view of the micro electric vehicle of the utility model after removing the main driver door and the co-driver door;

[0032] Figure 4 is a perspective view of part of the structure of the micro electric vehicle of the utility model;

[0033] Figure 5 is a top view structural schematic view of the micro electric vehicle of the utility model;

[0034] Figure 6 is a perspective view between the battery pack and the sliding pad of the micro electric vehicle of the utility model when the battery pack is retracted;

[0035] Figure 7 is Figure 6 an enlarged view of A of

[0036] Figure 8 is a perspective exploded view of the battery pack and the sliding pad of the micro electric vehicle of the utility model;

[0037] Figure 9 is a perspective view of the sliding pad of the micro electric vehicle of the utility model;

[0038] Figure 10 is a perspective view of the battery pack of the micro electric vehicle of the utility model when the support frame assembly and the wheel frame assembly are all opened;

[0039] Figure 11 is Figure 10 an enlarged view of B of

[0040] Figure 12 is a structural schematic view of the limiting block of the micro electric vehicle of the utility model;

[0041] Figure 13This is a schematic structural diagram of the elastic member of the micro electric vehicle of the utility model;

[0042] Figure 14 This is a three-dimensional diagram of the brake system of the micro electric vehicle of the utility model;

[0043] Figure 15 This is a cross-sectional view of the brake system of the micro electric vehicle of the present invention;

[0044] Figure 16 yes Figure 15 Magnified view of part C;

[0045] Figure 17 This is a structural diagram showing the position of the female plug of the micro electric vehicle of the present invention from one perspective;

[0046] Figure 18 This is a structural diagram showing the position of the female plug of the micro electric vehicle of the present invention from another perspective;

[0047] Figure 19 It is a three-dimensional diagram of a battery pack with a sub-plug of a micro electric vehicle of the present invention. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0049] See also Figures 1 to 19 The utility model provides a micro electric vehicle with an attractive and lightweight overall appearance, comprising a chassis 1, two front wheels 2 and two rear wheels 3 arranged on both sides of the chassis 1, and a main driver's seat 4 and a co-driver's seat 5 arranged on the chassis 1. The main driver's seat 4 and the co-driver's seat 5 are staggered front and back, thereby improving space utilization. The two rear wheels 3 are two independent hub motors 6 structures, and the hub motors 6 are mounted on an oblique suspension 47 through an independent rear axle 7. The oblique suspension 47 is arranged on the chassis 1. At least one battery compartment 8 is respectively provided below the main driver's seat 4 and the co-driver's seat 5 and at the rear of the chassis 1 between the two independent rear axles 7. A battery pack 9 is provided in the battery compartment 8, and the battery pack 9 is located on the chassis 1. Each battery pack 9 can independently power the hub motor.

[0050] The oblique suspension 47 is pivotally connected to the tilt rod 48 of the vehicle chassis 1. When the vehicle turns or encounters bumps, it can automatically adjust the inclination angle of the rear wheel 3, thereby improving driving safety. The reason is that: in order to increase the battery loading capacity and improve the endurance, the micro electric vehicle of the present invention also has a battery pack 9 installed at the rear of the vehicle, which causes the rear half of the vehicle to be heavier. The design of the oblique suspension 47 improves the stability and safety of the vehicle, thereby making the relationship between the battery pack 9 and the vehicle closer.

[0051] In the micro electric vehicle of the present invention, the installation entrances of several battery compartments 8 are respectively matched with the outer side surface below the main driver's seat 4, the outer side surface below the co-driver's seat 5 and the rear end 46. Therefore, the micro electric vehicle of the present invention is correspondingly inserted with a battery pack 9 in each battery compartment 8, and each battery pack 9 can independently power the hub motor 6. Therefore, when one of the battery packs 9 is exhausted, it can be taken out and charged, and the remaining battery packs 9 continue to provide power to the hub motor 6, thereby realizing the sustainability of the driving time of the micro electric vehicle and being suitable for the use scenario of urban taxis.

[0052] The rear wheel 3 connected to the chassis 1 by an independent rear axle 7 releases the space between the two independent rear axles 7 on the chassis 1, making it possible to design at least one battery compartment 8 at the rear of the chassis 1, thereby maximizing the capacity of the battery pack 9 of the entire vehicle.

[0053] The battery pack 9 is located above the vehicle chassis 1, meaning it is protected by the chassis 1. When driving on poor road conditions, it will not come into direct contact with potholes and potentially cause damage. The battery pack 9 located below the driver's seat 4 and the passenger seat 5 is not only protected by the chassis 1 but also by the metal driver's door 10 and the passenger door 11. This is because the battery pack 9 below the driver's seat 4 and the passenger seat 5 faces the driver's door 10 and the passenger door 11, respectively. This is partly to maximize the capacity of the battery pack 9 and to avoid wasting any space. Therefore, the battery compartment 8 is designed without a cover. This clever design utilizes the driver's door 10 and the passenger door 11 to block the battery pack 9, effectively protecting it within the battery compartment 8. Furthermore, a rear door (not shown) is designed at the rear of the vehicle. This metal rear door (not shown) covers and protects at least one battery compartment 8 located at the rear of the chassis 1, between the two independent rear axles 7.

[0054] Since the left and right wheelbases and the front and rear wheelbases of the micro electric vehicle of the present invention are relatively small, the battery pack 8 is concentrated in the middle and rear section of the vehicle, which causes the center of gravity of the vehicle to be biased towards the rear of the vehicle. In order to eliminate the risk of vehicle loss of control caused by braking, the synchronization of the front and rear wheel brakes is staggered. When the brake pedal 49 is stepped on, the front brake assembly starts working first, followed by the rear brake assembly, thereby avoiding vehicle tail-swinging and braking out of control. Specifically: the brake system includes a brake pedal 49, a front brake hydraulic cylinder 50 and a rear brake hydraulic cylinder 51. The brake pedal 49 is hinged on the vehicle frame. By stepping on the brake pedal 49, the brake pedal 49 is flipped around the hinge position, and then the front brake push rod 52 and the rear brake push rod 53 on the brake pedal 49 respectively push the piston 54 of the front brake hydraulic cylinder 50 and the piston 55 of the rear brake hydraulic cylinder 51, thereby achieving braking of the front wheel 2 and the rear wheel 3; the distance d1 between the piston 54 of the front brake hydraulic cylinder 50 and the front brake push rod 52 is smaller than the distance d2 between the piston 55 of the rear brake hydraulic cylinder 51 and the rear brake push rod 53.

[0055] The battery pack 9 is arranged in a retractable and slideable manner in the battery compartment 8, and includes a battery shell 12, a wheel frame assembly and a support frame assembly arranged at the bottom of the battery shell 12 that can be flipped, folded, retracted or opened,

[0056] The wheel frame assembly realizes the automation of the retraction and extension of the wheel frame assembly through the structural design of the torsion spring 13, the limit assembly 14 and the limit rod 15. Specifically, the wheel frame assembly includes a left wheel frame 16, a right wheel frame 17 and a connecting plate 18 connecting the left wheel frame 16 and the right wheel frame 17. The left wheel frame 16 and the right wheel frame 17 are respectively provided with rollers 19, and the left wheel frame 16 and the right wheel frame 17 are respectively provided with coaxial pivot shafts 20, the pivot shaft 20 is pivotally connected to the pivot seat 21, and the pivot shaft 20 is sleeved with a torsion spring 13, which has an elastic force on the wheel frame assembly to always rotate in the retracting direction; a limit rod 15 is also provided between the left wheel frame 16 and the right wheel frame 17, and the limit rod 15 is limited by the limit assembly 14, so that the wheel frame assembly is in a retracted or opened state.

[0057] When the wheel frame assembly is folded up due to the elastic force of the torsion spring 13, the wheel frame assembly flips around the pivot axis 20 and flips toward the side of the battery shell 12. This flipping impact force has a certain impact force on the battery shell 12. In order to protect the battery shell 12 from damage, the utility model adds a connecting plate 18, and correspondingly sets a connecting groove 22 and a wheel groove 23 on the side of the battery shell 12. When the wheel frame assembly is flipped into place, the connecting plate 18 matches in the connecting groove 22, and the roller 19 matches in the wheel groove 23; the setting of the connecting groove 22 and the wheel groove 23 also plays a role in positioning and limiting the wheel frame assembly after it is folded up, thereby indirectly protecting the wheel frame assembly.

[0058] It was mentioned earlier that the battery pack 9 is of the pull-out, slide-in type. The reason is that the bottom of the battery shell 12 described in the utility model is also provided with two left-right symmetrical slide rails 24. The slide rails 24 correspond to the pulleys 26 on the slide pads 25 provided in the battery compartment 8. The pulleys 26 can support the battery pack 9 and enable the battery pack 9 to slide smoothly into the battery compartment 8.

[0059] To facilitate the movement of the battery pack 9, a reversible handle 27 is provided at one end of the top of the battery housing 12. The handle 27 can be raised or lowered. When the wheel frame assembly is in the open position, the rollers 19 are on the ground, and the battery pack 9 can be easily moved by simply lifting the handle 27. When the battery pack 9 needs to be placed aside for charging or storage, the support frame assembly provides support.

[0060] The support frame assembly includes a support arm 28, one end of the support arm 28 is provided with a support block 29, and the other end of the support arm 28 is provided with a hinge shaft 30, the two ends of the hinge shaft 30 are respectively passed through two hinge seats 31, and a torsion spring 32 is also sleeved on the hinge shaft 30. The torsion spring 32 has an elastic force on the support arm 28 to always rotate in the opening direction. Therefore, when the battery pack 9 leaves the battery compartment 8, the torsion spring 13 drives the support arm 28 to open, thereby providing the battery pack 9 with supporting force.

[0061] In summary, the support frame assembly of the present invention is driven to open automatically by the torsion spring 32, and the support frame assembly is folded when the battery pack 9 slides into the battery compartment 8 and is blocked and guided by the guide inclined plate 33 provided on the sliding pad 25 in the battery compartment 8, so that the support arm 28 slowly flips around the hinge shaft 30 and finally reaches a fully folded state.

[0062] When the support frame assembly is fully retracted, the driving member 34 on the support frame assembly triggers the limit assembly 14, causing the wheel frame assembly to be automatically flipped and retracted. Specifically: the limit assembly 14 includes a limit block 35 and an elastic member 36, the limit block 35 is hinged on the pivot seat 21, and a limit groove 37 and a pressure plate 38 are provided on the limit block 35, and the limit groove 37 corresponds to the matching limit rod 15, so when the support assembly is retracted, the driving member 34 squeezes the pressure plate 38 to flip downward around the hinge point between the limit block 35 and the pivot seat 21, thereby causing the limit groove 37 to flip upward, and then causing the limit rod 15 locked in the limit groove 37 to disengage from the limit groove 37, and the wheel frame assembly is acted upon by the torsion spring 13 and flips to a retracted state.

[0063] Of course, when the support frame assembly and the wheel frame assembly are in the open state, it is because the battery pack 9 leaves the battery compartment 8, the torsion spring 32 drives the support frame assembly to open, and the elastic member 36 is facing the pressure plate 38 and is in the opposite position of the driving member 34, and has a reverse force on the pressure plate 38. Therefore, when the support frame assembly is opened, the driving member 34 leaves the pressure plate 38, thereby losing the squeezing force on the pressure plate 38, and the elastic member 36 causes the pressure plate 38 to flip upward around the hinge point. At the same time, when the wheel frame assembly can be manually flipped to the open state, the limit rod 15 just falls into the limit groove 37.

[0064] The limiting groove 37 is formed by an upper extension block 43 and a lower extension block 44 provided at the front end of the limiting block 35, and the outer corners of the upper extension block 43 and the lower extension block 44 have rounded corners 45. The design of the rounded corners 45 helps the limiting rod 15 fall into the limiting groove 37 better and more smoothly.

[0065] The elastic member 36 is a U-shaped structure, including a fixed arm 39 and an elastic arm 40, and the elastic arm 40 and the fixed arm 39 are transitionally connected by an arc plate 41. Of course, the elastic member 36 of the present invention is not limited to this structure, as long as it has elastic properties and is sufficient to successfully flip the limit block 35.

[0066] In order to facilitate the installation, removal and movement of the battery pack 9, when the support frame assembly and the wheel frame assembly are in the open state, the ground clearance of the battery pack 9 is consistent with the ground clearance of the battery compartment 8. That is to say, the height of the battery pack 9 supported by the support frame assembly and the wheel frame assembly is consistent with the height of the battery compartment 8 on the micro electric vehicle. Therefore, when the battery pack 9 is moved to the battery compartment 8 position by the handle 27, the installation operation of the battery pack 9 can be completed by simply pushing the battery pack 9 into the battery compartment 8, which is labor-saving and simple.

[0067] When the vehicle is in motion, it will shake due to the uneven road surface. After the battery pack 9 is installed in the battery compartment 8, its overall weight stress is concentrated on the battery connector 56. The battery connector 56 is an intermediate component connecting the battery pack 9 with the vehicle's circuit system. It includes a sub-plug 57 provided on the battery pack 9 and a female plug 58 provided on the frame that corresponds to the sub-plug 57. In order to prevent the battery connector 56 from being damaged due to concentrated stress, an elastic sleeve 59 is provided between the female plug 58 and the frame.

[0068] The micro electric vehicle provided by the embodiment of the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions disclosed by the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A micro electric vehicle comprising a chassis, two front wheels and two rear wheels disposed on either side of the chassis, a driver's seat and a passenger seat disposed on the chassis, and a braking system, characterized in that: The two rear wheels are two independent hub motor structures, and the hub motors are installed on the diagonal suspension through an independent rear axle. The diagonal suspension is set on the vehicle chassis. At least one battery compartment is provided below the main driver's seat and the co-driver's seat and at the rear of the vehicle chassis between the two independent rear axles. A battery pack is provided in the battery compartment, and the battery pack is located on the vehicle chassis. Each battery pack can independently power the hub motor.

2. A micro electric vehicle according to claim 1, characterized in that: The brake system includes a brake pedal, a front brake hydraulic cylinder and a rear brake hydraulic cylinder. The brake pedal is hinged to the vehicle frame. By stepping on the brake pedal, the brake pedal is flipped around the hinge position, and then the front brake push rod and the rear brake push rod on the brake pedal push the piston of the front brake hydraulic cylinder and the piston of the rear brake hydraulic cylinder respectively, thereby achieving braking of the front and rear wheels; the distance between the piston of the front brake hydraulic cylinder and the front brake push rod is smaller than the distance between the piston of the rear brake hydraulic cylinder and the rear brake push rod.

3. The micro electric vehicle according to claim 1, characterized in that: The battery packs under the main driver's seat and the co-driver's seat are respectively facing the main driver's door and the co-driver's door, and the main driver's door and the co-driver's door protect the battery packs; the micro electric vehicle is also provided with a rear door, and the rear door covers and protects at least one battery compartment at the rear of the vehicle chassis between two independent rear axles.

4. The micro electric vehicle according to claim 1, characterized in that: The battery pack can be pulled out and arranged in the battery compartment, including a battery shell, a wheel frame assembly and a support frame assembly arranged at the bottom of the battery shell that can be flipped, folded, retracted or opened, the wheel frame assembly is provided with a roller, and the support frame assembly is provided with a support block; the bottom of the battery shell is also provided with a slide rail, and the slide rail corresponds to the pulley on the slide pad provided in the battery compartment.

5. A micro electric vehicle according to claim 1, 2, 3 or 4, characterized in that: The battery pack is connected to the vehicle's circuit system through a battery connector. The battery connector includes a sub-plug provided on the battery pack and a female plug provided on the vehicle frame that matches the sub-plug. An elastic sleeve is provided between the female plug and the vehicle frame.

6. The micro electric vehicle according to claim 4, characterized in that: The wheel frame assembly includes a left wheel frame, a right wheel frame and a connecting plate connecting the left wheel frame and the right wheel frame, the left wheel frame and the right wheel frame are respectively provided with rollers, and the left wheel frame and the right wheel frame are respectively provided with coaxial pivot shafts, the pivot shafts are pivotally connected to the pivot seats, and a torsion spring is sleeved on the pivot shafts, which has an elastic force on the wheel frame assembly to always rotate in the retracting direction; a limit rod is also provided between the left wheel frame and the right wheel frame, and the limit rod is limited by the limit assembly, so that the wheel frame assembly is in a retracted or opened state.

7. The micro electric vehicle according to claim 6, characterized in that: The limit assembly includes a limit block and an elastic member, the limit block is hinged on the pivot seat, and a limit slot and a pressure plate are provided on the limit block, the limit slot corresponds to a matching limit rod, and the support frame assembly is provided with a driving member facing the pressure plate. When the support assembly is retracted, the driving member squeezes the pressure plate to flip downward around the hinge point of the limit block and the pivot seat, thereby causing the limit slot to flip upward, and then causing the limit rod locked in the limited slot to disengage from the limit slot, and the wheel frame assembly is in a retracted state; the elastic member is facing the pressure plate and is in the reverse position of the driving member, and has a reverse force on the pressure plate. When the driving member leaves the pressure plate and loses the squeezing force on the pressure plate, the elastic member causes the pressure plate to flip upward around the hinge point. At the same time, when the wheel frame assembly is manually flipped to an open state, the limit rod just falls into the limit slot.

8. The micro electric vehicle according to claim 7, characterized in that: The elastic member is a U-shaped structure, comprising a fixed arm and an elastic arm, and the elastic arm and the fixed arm are transitionally connected via an arc plate.

9. The micro electric vehicle according to claim 4, characterized in that: The support frame assembly includes a support arm, the support block is at one end of the support arm, and a hinge shaft is provided at the other end of the support arm. The two ends of the hinge shaft are respectively passed through two hinge seats, and a torsion spring is also sleeved on the hinge shaft. The torsion spring has an elastic force on the support arm to always rotate in the opening direction.

10. The micro electric vehicle according to claim 4, characterized in that: The sliding pad is provided with a guide inclined plate. When the battery pack is pushed toward the battery compartment, the support block on the support arm is blocked by the guide inclined plate and guided by the force, so that the support frame is flipped inward and retracted.

Images