Child electric vehicle

Abstract

The child electric vehicle comprises an electric vehicle frame, a front wheel, a rear wheel, a battery box and a handle part, the front wheel and the rear wheel are arranged at the two ends of the electric vehicle frame, the electric vehicle frame comprises a main vehicle frame for installing the battery box, and the battery box is peripherally sealed by the main vehicle frame. When a child uses the electric vehicle in a rainy day or in an environment with more accumulated water on the ground, the sealed mounting cavity can reduce rainwater or accumulated water entering the battery box, and a battery and a circuit system are protected from being damaged, so that the service life of the electric vehicle is prolonged; in addition, the closed mounting cavity can reduce the risk that the battery box is subjected to external impact or collision in the driving process, and the situation that the battery is damaged or short-circuited is reduced.

Description

Technical Field

[0001] This application relates to the field of electric vehicles, and particularly to a children's electric vehicle. Background Art

[0002] Two-wheeled electric vehicles are a modern conventional means of transportation. With the development of technology, electric technology has been applied to the field of children's vehicles.

[0003] Currently, the frame of a children's electric vehicle generally includes a down tube, a battery box installed inside the down tube, and a battery protection cover plate that covers the lower part of the down tube and is used to enclose the battery box. The down tube and the battery protection cover plate are rotatably connected by a rotating shaft. Locking rings are provided on both the down tube and the battery protection cover plate. The down tube is a hollow structure. The battery box is placed inside the down tube, and the cover plate and the down tube are locked using the locking rings. After installation, the vehicle can be ridden.

[0004] Regarding the above related technology, there will still be gaps at the connection between the battery protection cover plate and the down tube. When a child rides the vehicle in rainy weather or in an environment with a lot of water accumulation on the ground, rainwater or splashed accumulated water will enter the down tube through the gaps, which will damage the battery box inside the down tube, shortening the service life of the electric vehicle. Summary of the Utility Model

[0005] In order to improve the service life of a children's electric vehicle, this application provides a children's electric vehicle.

[0006] A children's electric vehicle provided by this application adopts the following technical solutions:

[0007] A children's electric vehicle includes an electric vehicle frame, a front wheel and a rear wheel provided at both ends of the electric vehicle frame, a battery box, and a handle part. It is characterized in that the electric vehicle frame includes a main frame for installing the battery box, and the main frame circumferentially encloses the battery box.

[0008] By adopting the above technical solutions, when a child uses the electric vehicle in rainy weather or in an environment with a lot of water accumulation on the ground, the enclosed installation cavity can reduce the entry of rainwater or accumulated water into the battery box, protecting the battery and the circuit system from damage, thereby extending the service life of the electric vehicle; and the enclosed installation cavity can reduce the risk of the battery box being externally impacted or collided during driving, further reducing the occurrence of battery damage or short circuit.

[0009] Optionally, the electric vehicle frame further includes a front frame and a rear frame. The main frame is sleeved on the front frame, and a shock absorber is provided between the main frame and the rear frame. Both ends of the shock absorber are rotatably connected to the main frame and the rear frame respectively.

[0010] By adopting the above technical solution, the main frame is sleeved on the front frame, and a shock absorber is arranged between the main frame and the rear frame. The above structural design enhances the overall stability and durability of the electric vehicle. Moreover, as a key component connecting the main frame and the rear frame, the shock absorber can withstand and disperse the forces from all directions, thereby maintaining the stability and balance of the electric vehicle during driving.

[0011] Optionally, one end of the main frame is provided with a mounting frame for connecting the shock absorber, and the mounting frame seals the main frame.

[0012] By adopting the above technical solution, on the one hand, the mounting frame can effectively seal the end of the main frame, reducing the entry of rainwater, accumulated water and other impurities into the interior of the main frame; on the other hand, the mounting frame provides a dedicated connection point for the shock absorber, making the connection between the shock absorber and the main frame more stable and reliable, ensuring that the shock absorber can function properly during the driving of the electric vehicle, and reducing the safety hazards caused by loose or detached connections; secondly, when the shock absorber needs to be replaced or upgraded, only the mounting frame needs to be operated, without disassembling and reconstructing the entire main frame, thereby improving the maintenance efficiency and reducing the maintenance cost at the same time.

[0013] Optionally, the main frame, the rear frame and the shock absorber are integrally in a straight line.

[0014] By adopting the above technical solution, when the children's electric vehicle is driving, the impact force from the road surface can be more directly absorbed and mitigated by the shock absorber. The straight-line design makes the mechanical transmission between the main frame, the rear frame and the shock absorber more direct and efficient, and is transmitted to all parts of the frame, thereby improving the overall performance and durability of the children's electric vehicle.

[0015] Optionally, the rear frame includes rear side frames respectively arranged on both sides of the rear wheel and a rear connecting frame connecting the two rear side frames, and the shock absorber is rotatably connected to the rear connecting frame.

[0016] By adopting the above technical solution, since the shock absorber is rotatably connected to the connecting frame, this structure, compared with an electric vehicle with shock absorbers installed on both sides of the rear wheel respectively, not only saves costs but also can absorb and mitigate vibrations through the rotational connection method, reducing the impact of vibrations on the electric vehicle and children. At the same time, this connection method also helps to maintain the stability and reliability of the shock absorber during driving.

[0017] Optionally, the end of the rear side frame has a clamping groove for clamping the rear wheel.

[0018] By adopting the above technical solution, by setting a clamping groove at the end of the rear side frame, the rear wheel can be firmly clamped therein, thereby enhancing the overall structural stability of the rear part of the electric vehicle. This design helps to reduce the looseness or deviation of the rear wheel caused by vibration or external force during driving, and improves driving safety; the design of the clamping groove makes the installation and removal process of the rear wheel easier and faster, and the assembly and removal of the rear wheel can be easily completed without complicated fixing devices or tools, thereby improving maintenance efficiency and convenience.

[0019] Optionally, a main control box for installing control components is provided below the main frame, and the rear connecting frame is rotatably connected to the main control box.

[0020] By adopting the above technical solution, on the one hand, the main control box is installed under the main frame, which helps to lower the center of gravity of the vehicle and improve stability and safety during driving; on the other hand, the main control box can reduce the overall use space of the frame while increasing the overall structural strength of the frame.

[0021] Optionally, a safety cushion is provided on the top of the main frame, and a protrusion for preventing children from escaping is provided on a side of the safety cushion away from the front frame.

[0022] By adopting the above technical solution, since a protrusion is provided on the side of the seat cushion away from the front frame, when a child brakes suddenly during riding, the protrusion can effectively prevent the child from accidentally sliding off or falling off the seat during riding, thereby improving the safety performance of the electric vehicle.

[0023] Optionally, the safety seat cushion includes a seat cushion connecting frame fixedly connected to the main frame, a seat cushion frame arranged on the seat cushion connecting frame, and a seat cushion cover sleeved on the seat cushion frame.

[0024] By adopting the above technical solution, since the support frame is screwed under the seat cushion, on the one hand, the support frame is connected to the bottom of the seat cushion by screwing, which provides a stable support for the seat cushion and can effectively disperse the pressure on the seat cushion, ensuring that the seat cushion is not easily deformed or damaged during use, thereby extending its service life; on the other hand, since the seat cushion is screwed to the support frame, the installation and disassembly process of the support frame becomes relatively simple and quick, which not only facilitates assembly during the production process, but also facilitates users to repair or replace it when necessary.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The main frame has a circumferentially enclosed battery box, which makes it difficult for rainwater or accumulated water to enter the main frame, protecting the battery and the circuit system from damage, thus extending the service life of the electric vehicle. Moreover, the enclosed installation cavity can protect the battery box from the risk of external impact or collision, thereby reducing the occurrence of battery damage or short circuit.

[0027] 2. The main frame, rear frame, and shock absorber are in an overall straight line. When the children's electric vehicle is in motion, the impact force and vibration from the road surface can be more directly absorbed and mitigated by the shock absorber. The straight-line design enables more direct and efficient mechanical transmission between the main frame, rear frame, and shock absorber, and transmits it to all parts of the frame, thereby improving the overall performance and durability of the children's electric vehicle.

[0028] 3. A safety seat cushion is provided on the side of the main frame facing away from the main control box, and a protrusion for preventing children from detaching is provided on the side of the safety seat cushion away from the front frame. Due to the protrusion provided on the side of the safety seat cushion away from the front frame, when a child brakes suddenly during riding, the protrusion can effectively prevent the child from accidentally slipping or detaching from the seat during riding, improving the safety performance of the electric vehicle. Description of the Drawings

[0029] Figure 1 is a schematic diagram of the overall structure of the children's electric vehicle in this application.

[0030] Figure 2 is a schematic diagram of the front side frame and wheels of the children's electric vehicle in this application.

[0031] Figure 3 is a schematic diagram of a partial cross-section of the children's electric vehicle in this application.

[0032] Figure 4 is an exploded view of the footrest of the children's electric vehicle in this application.

[0033] Figure 5 is a schematic diagram of the rear side frame of the children's electric vehicle in this application.

[0034] Figure 6 is an exploded view of the safety seat cushion of the children's electric vehicle in this application.

[0035] Explanation of the reference numerals in the accompanying drawings: 1. electric frame; 11. front frame; 111. front side frame; 112. front connecting frame; 113. snap-in groove; 12. main frame; 121. mounting cavity; 122. sleeve hole; 123. mounting frame; 124. through hole; 13. rear frame; 131. rear side frame; 132. rear connecting frame; 133. hinge seat; 134. rotating end; 2. front wheel; 21. front wheel axle; 3. rear wheel; 4. handle; 5. shock absorber; 6. battery box; 7. main control box; 71. connector; 72. foot pedal; 8. control part; 9. safety cushion; 91. cushion connecting frame; 92. cushion frame; 921. reinforcing rib; 922. raised part; 93. cushion cover. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The present application embodiment discloses a children's electric vehicle. Figure 1 A children's electric vehicle comprises an electric frame 1, a front wheel 2, a rear wheel 3 and a handle 4. The front wheel 2 and the rear wheel 3 are respectively arranged at the front and rear ends of the electric frame 1. The handle 4 and the front wheel 2 are located on the same side and fixed to the top of the electric frame 1.

[0038] Reference Figure 1 The electric vehicle frame 1 includes a front frame 11, a main frame 12 and a rear frame 13. The main frame 12 is mounted on the front frame 11. The rear frame 13 is connected to the front frame 11 through a shock absorber 5. Both ends of the shock absorber 5 are rotatably connected to the main frame 12 and the rear frame 13 through a rotating shaft.

[0039] Reference Figure 1 and Figure 2 The front frame 11 includes a front side frame 111 located on both sides of the front wheel 2 of the electric vehicle and a front connecting frame 112 connecting the two front side frames 111. The main frame 12 is sleeved on the front connecting frame 112, and the ends of the two front side frames 111 have a clamping groove 113 clamped with the front wheel 2. The front wheel 2 is rotatably mounted with a front wheel shaft 21 that matches the clamping groove 113. After the front side frame 111 is clamped on the front wheel shaft 21, a nut is threadedly installed on the front wheel shaft 21 to limit the axial disengagement of the front side frame 111. The handle is fixed to the top of the front connecting frame 112.

[0040] Reference Figure 3 The main frame 12 is in the shape of a straight cylinder as a whole, and is fully enclosed in the circumferential direction. An installation cavity 121 is formed inside the main frame 12 for installing the battery box 6. The front end of the main frame 12 has a sleeve hole 122 for inserting the front connecting frame 112. The rear end of the main frame 12 is detachably installed with an installation frame 123 for sealing the end of the main frame 12. The installation frame 123 and the opposite sides of the main frame 12 are provided with through holes 124 for inserting the rotating shaft of the shock absorber 5.

[0041] Refer to Figure 3 and Figure 4 At the bottom of the main frame 12, there is also a main control box 7 integrally or welded for installing the control component 8. The main control box 7 is triangular as a whole. The control component 8 is installed inside the main control box 7, and the control component 8 is used to control the braking, starting, etc. of the electric vehicle. A connecting piece 71 is provided at the bottom of the main control box 7, and pedal boards 72 are fixed on both sides of the connecting piece 71 by bolts.

[0042] Refer to Figure 5 The rear frame 13 includes rear side frames 131 located on both sides of the rear wheel 3 and a rear connecting frame 132 connecting the two rear side frames 131. The two rear side frames 131 are respectively clamped to both sides of the rear wheel 3. The rear side frame 131 is also fixed to the rear wheel 3 by clamping.

[0043] Refer to Figure 5 At the connection between the rear side frame 131 and the rear connecting frame 132, there is a hinge seat 133 welded for the other end of the shock absorber 5 to be hinged. The rear connecting frame 132 also has a rotating end 134 rotatably connected to the main control box 7 on the side facing the main frame 12. Through the connection between the rear connecting frame 132 and the main control box 7, the overall structure is made more flexible.

[0044] Refer to Figure 6 On the top of the main frame 12, there is a safety seat cushion 9. The safety seat cushion 9 includes a seat cushion connecting frame 91 fixed to the main frame 12, a seat cushion skeleton 92 arranged on the top of the seat cushion connecting frame 91, and a seat cushion cover 93 sleeved on the seat cushion skeleton 92. The seat cushion connecting frame 91 is a metal bracket, which is fixed to the main frame 12 by welding or other means.

[0045] Refer to Figure 6 The seat cushion skeleton 92 covers the seat cushion connecting frame 91 and is fixed by bolt connection. The seat cushion skeleton 92 is made of hard material. Reinforcing ribs 921 are evenly arranged at intervals along the horizontal direction on both sides of the seat cushion skeleton 92. The seat cushion skeleton 92 extends upward on the side away from the handle part 4 to form a convex part 922. The setting of the convex part 922 can reduce the occurrence of children falling off the electric vehicle.

[0046] Refer to Figure 6 The seat cushion cover 93 sleeves and covers the seat cushion skeleton 92. It is made of elastic material and can ensure the comfort of children when riding.

[0047] After the installer installs the battery box 6 in the circumferentially enclosed main frame 12, the installation frame 123 is inserted into the main frame 12, and then the shock absorber 5 is connected to the installation frame 123 and the main frame 12 through a rotating shaft. The other end of the shock absorber 5 is connected to the rear frame 13. In this way, the main frame 12, the shock absorber 5, and the rear frame 13 are all in a straight line, and only one shock absorber 5 is installed, so that the impact force from the road surface on the children's electric vehicle can be more directly absorbed and mitigated by the shock absorber 5.

[0048] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A children's electric vehicle, comprising an electric vehicle frame (1), a front wheel (2) and a rear wheel (3) arranged at both ends of the electric vehicle frame (1), a battery box (6) and a handle (4), characterized in that: The electric vehicle frame (1) comprises a main frame (12) for mounting the battery box (6), wherein the main frame (12) circumferentially encloses the battery box (6).

2. A children's electric vehicle according to claim 1, characterized in that: The electric vehicle frame (1) further comprises a front frame (11) and a rear frame (13); the main frame (12) is sleeved on the front frame (11); a shock absorber (5) is arranged between the main frame (12) and the rear frame (13); and two ends of the shock absorber (5) are rotatably connected to the main frame (12) and the rear frame (13), respectively.

3. A children's electric vehicle according to claim 2, characterized in that: One end of the main frame (12) is provided with a mounting frame (123) for connecting the shock absorber (5), and the mounting frame (123) seals the main frame (12).

4. A children's electric vehicle according to claim 2, characterized in that: The main frame (12), the rear frame (13) and the shock absorber (5) are linear as a whole.

5. The electric vehicle for children according to claim 2, characterized in that: The rear vehicle frame (13) comprises rear side frames (131) respectively arranged on both sides of the rear wheel (3) and a rear connecting frame (132) connecting the two rear side frames (131); the shock absorber (5) and the rear connecting frame (132) are rotatably connected.

6. The electric vehicle for children according to claim 5, characterized in that: The end of the rear side frame (131) has a clamping groove (113) for clamping to the rear wheel (3).

7. The electric vehicle for children according to claim 5, characterized in that: A main control box (7) for mounting a control component (8) is provided below the main vehicle frame (12), and the rear connecting frame (132) is rotatably connected to the main control box (7).

8. The electric vehicle for children according to claim 2, characterized in that: A safety cushion (9) is arranged on the top of the main frame (12), and a protrusion (922) for preventing children from escaping is arranged on a side of the safety cushion (9) away from the front frame (11).

9. The electric vehicle for children according to claim 8, characterized in that: The safety seat cushion (9) comprises a seat cushion connection frame (91) fixedly connected to the main vehicle frame (12), a seat cushion frame (92) arranged on the seat cushion connection frame (91), and a seat cushion cover (93) sleeved on the seat cushion frame (92).

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