Hub motor wiring structure of electric camping car

Abstract

The utility model discloses a wheel hub motor wiring structure of an electric camping car, which comprises a wheel fork, a wheel hub motor is rotatably connected in the bottom end of the wheel fork, a rotating shaft is arranged in the middle of the top of the wheel fork, the interior of the rotating shaft is hollow, an electric wire penetrates through the middle of the rotating shaft to be connected with the wheel hub motor, the rotating shaft is provided with a first bearing, and the first bearing is connected with the wheel hub motor. The first bearing is used for being connected with a folding bicycle body, the wheel fork can rotate relative to the folding bicycle body through the first bearing, by the adoption of the method, the rotating shaft is arranged to be in the hollow shape, electric wires can be wired from the interior of the rotating shaft, the attractiveness of the bicycle body is improved, meanwhile, the electric wires can be prevented from being collided, and due to the fact that the electric wires are wired from the interior of the rotating shaft, the electric wires are prevented from being collided. And through the arrangement of the third bearing, the folding bicycle body is supported, the stability is improved, meanwhile, the rotation of the wheel fork is not influenced, the structure is reasonable, the service life of the bearing is prolonged, and the stability of the folding bicycle body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of camping vehicles, in particular to a hub motor wiring structure of an electric camping vehicle. Background Art

[0002] A camper van is a foldable, towable cargo vehicle. It is widely used in transporting things because it is easy to use, can carry cargo, is easy to store, and saves time and effort. It is now often used in outdoor activities or short-distance transportation.

[0003] Existing camping cars are divided into electric and non-electric according to the driving mode. Among them, electric camping cars are popular in the market because they can provide power assistance when in use and are more labor-saving to use than non-electric camping cars. The structural difference between electric camping cars and non-electric camping cars is that the electric camping car replaces the two wheels at the same end or the four wheels of the whole vehicle with hub motors. When in use, the operation of the hub motor is controlled by a controller to drive the frame to move, thereby achieving the effect of electric power assistance. However, since the hub motor requires electric drive, wires are required to transmit electricity to the hub motor. Since the wires of the fixed wheel do not need to rotate, they can be fixed inside the wheel fork for routing, which can avoid the wires being exposed. However, since the steering wheel needs to rotate to control the direction, the wires cannot be fixed inside the wheel fork for routing. The existing method is to expose the wires directly to the outside and not fixed to the wheel fork to avoid affecting the rotation of the steering wheel. In this way, scratches and bumps are prone to occur during use, resulting in a short service life of the wires, and this method also affects the aesthetics.

[0004] Therefore, it is urgent to design a hub motor wiring structure for an electric camper to overcome one or more deficiencies of the above-mentioned prior arts. Utility Model Content

[0005] The utility model adopts the technical solution to solve the above technical problems as follows: to provide a wheel hub motor wiring structure of an electric camping vehicle, characterized in that it comprises: a folding body, the folding body is a gathering type body or a folding type body, one end of the folding body is provided with a fixed wheel assembly, the other end of the folding body is rotatably provided with a direction wheel assembly, the end of the folding body provided with the direction wheel assembly is also provided with a direction rod assembly, the direction rod assembly is connected with the direction wheel assembly, and the direction rod assembly can control the rotation of the direction wheel assembly; the direction wheel assembly comprises: a wheel fork, the bottom end of the wheel fork is rotatably connected with a wheel hub motor, a rotating shaft is provided in the middle of the top of the wheel fork, the interior of the rotating shaft is hollow, an electric wire passes through the middle of the rotating shaft and is connected to the wheel hub motor, the rotating shaft is provided with a first bearing, the first bearing is used to be connected with the folding body, and the wheel fork can rotate relative to the folding body through the first bearing.

[0006] In a preferred embodiment, a second bearing is further provided on the rotating shaft, and the second bearing is spaced apart from the first bearing.

[0007] In a preferred embodiment, a third bearing is further provided at the bottom of the rotating shaft, and the third bearing is an axial bearing.

[0008] In a preferred embodiment, the first bearing and the second bearing are radial bearings.

[0009] In a preferred embodiment, the first bearing and the second bearing are clearance-fitted with the rotating shaft, and the first bearing and the second bearing are fixedly connected to the outside.

[0010] In a preferred embodiment, a buffer is further provided on the top of the wheel fork, and the buffer is sleeved on the outer side of the rotating shaft, and the first bearing and the second bearing are located above the buffer.

[0011] In a preferred embodiment, a wire threading opening is further provided on one side of the wheel fork, and the wire passing through the rotating shaft passes out from the wire threading opening and is connected to the wheel hub motor.

[0012] In a preferred embodiment, a thread is provided at one end of the rotating shaft away from the wheel fork, and the rotating shaft is connected to a nut via the thread.

[0013] In a preferred embodiment, at least one wire clamp is connected to one side of the fork for fixing the wires.

[0014] In a preferred embodiment, one end of the folding vehicle body provided with the steering wheel assembly is also provided with a mounting seat, the steering wheel assembly is connected to the mounting seat, and the first bearing is tightly fitted with the mounting seat.

[0015] In a preferred embodiment, a box cover is further provided at the connection between the mounting seat and the rotating shaft, and the wires are located inside the box cover after being led out from the rotating shaft.

[0016] In a preferred embodiment, a wire guard is further provided inside the wheel fork above the wheel hub motor.

[0017] The beneficial effects of the utility model are as follows: by setting the rotating shaft to be hollow, the electric wires can be routed from the inside of the rotating shaft, which improves the aesthetics of the vehicle body and avoids collisions with the wires. At the same time, since the wires are routed from the inside of the rotating shaft, the wires will not affect the rotation of the wheel fork. The third bearing is provided to support the folding vehicle body, thereby improving stability, while not affecting the rotation of the wheel fork. The structure is reasonable, the service life of the bearings is improved, and the stability of the folding vehicle body is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cooperation between the steering wheel assembly and the mounting seat of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the steering wheel assembly of the utility model;

[0021] Figure 4 This is an exploded view of the steering wheel assembly of the utility model.

[0022] In the figure:

[0023] 10. Wheel fork; 11. Rotating shaft; 12. Hub motor; 13. First bearing; 14. Second bearing; 15. Third bearing; 16. Buffer; 17. Threading port; 18. Thread; 19. Nut; 20. Wire clamp; 21. Folding body; 22. Fixed wheel assembly; 23. Steering wheel assembly; 24. Steering rod assembly; 25. Mounting seat; 26. Box cover. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0026] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0027] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0028] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. Therefore, the utility model is not limited to the specific embodiments disclosed below.

[0029] like Figure 1-Figure 4 As shown, the utility model provides a wiring structure of a hub motor 12 of an electric camping vehicle, including: a folding body 21, the folding body 21 is a gathering type body or a folding type body, one end of the folding body 21 is provided with a fixed wheel assembly 22, the other end of the folding body 21 is rotatably provided with a direction wheel assembly 23, the end of the folding body 21 provided with the direction wheel assembly 23 is also provided with a direction rod assembly 24, the direction rod assembly 24 is connected to the direction wheel assembly 23, and the direction rod assembly 24 can control the rotation of the direction wheel assembly 23; The steering wheel assembly 23 includes: a wheel fork 10, wherein a wheel hub motor 12 is rotatably connected to the bottom end of the wheel fork 10, a rotating shaft 11 is provided in the middle of the top of the wheel fork 10, the interior of the rotating shaft 11 is hollow, and an electric wire passes through the middle of the rotating shaft 11 and is connected to the wheel hub motor 12, and a first bearing 13 and a second bearing 14 are provided at intervals on the rotating shaft 11, and the first bearing 13 and the second bearing 14 are used to be connected to the folding vehicle body 21, and the wheel fork 10 can rotate relative to the folding vehicle body 21 through the first bearing 13 and the second bearing 14;

[0030] Specifically, the folding body 21 is a gathering type body or a folding type body, and the difference between the two lies in the different folding methods. When folding, the folding type body 21 is folded in two opposite directions toward the center line. In this way, the structure of the folding body 21 is relatively simple, while when folding, the gathering type body is gathered toward the middle of the folding body 21 in four directions of front, back, left and right. In this way, the volume of the folded ... A fixed wheel assembly 22 is provided at one end of the folding body 21, and the fixed wheel assembly 22 is fixedly connected to the folding body 21, and the direction is fixed and cannot be changed. A direction wheel assembly 23 is provided at the other end of the folding body 21, and the direction wheel assembly 23 is rotatably connected to the folding body 21, and the direction of the direction wheel assembly 23 can be changed. A direction rod assembly 24 is also provided at one end of the folding body 21 where the direction wheel assembly 23 is provided, and the direction rod assembly 24 is connected to the direction wheel assembly 23 and is used to drive the direction wheel assembly 23 to rotate so as to control the walking direction of the folding body 21; wherein the direction wheel assembly 23 comprises: a wheel fork 10, wherein a wheel hub motor 12 is rotatably connected to the bottom end of the wheel fork 10, and a hollow rotating shaft 11 is provided at the top end of the wheel fork 10, and the rotating shaft 11 is used to be connected to the folding body 21, and a first axis is arranged at intervals on the rotating shaft 11 The first bearing 13 and the second bearing 14 are used to prevent the rotating shaft 11 from tilting relative to the folding body 21 when the force is large. At the same time, the setting of the double bearings can share the force, thereby increasing the service life of a single bearing. To facilitate the routing of wires, the rotating shaft 11 is hollow in structure. The wires can pass through the inside of the rotating shaft 11 and be connected to an external controller. When the wires are driven by the wheel fork 10 to rotate, the rotation point of the wires and the rotation point of the rotating shaft 11 are in the same vertical line. Therefore, the rotation of the wheel fork 10 will not pull the wires and will not affect the rotation of the hub motor 12. At the same time, since the wires are routed from the inside of the rotating shaft 11, the wires can be hidden, which not only improves the overall appearance and neatness, but also prevents the wires from being bumped.

[0031] The first bearing 13 and the second bearing 14 are preferably radial bearings to enable the rotating shaft 11 to rotate in situ relative to the folding body 21, or bearings that can withstand both radial and axial forces are used. However, the cost of such bearings is relatively high and can be determined according to usage requirements.

[0032] Furthermore, one end of the folding body 21 having the steering wheel assembly 23 is also provided with a mounting seat 25, the steering wheel assembly 23 is connected to the mounting seat 25, and the first bearing is tightly fitted with the mounting seat 25;

[0033] Furthermore, a box cover 26 is provided at the connection between the mounting seat 25 and the rotating shaft 11, and the wires are located inside the box cover 26 after being led out from the rotating shaft 11;

[0034] Specifically, the corner positions of the folding body 21 are all provided with mounting seats 25 for connecting to the frame of the folding body 21, and the steering wheel assembly 23 is also connected to the mounting seat 25. The steering wheel assembly 23 can rotate relative to the mounting seat 25, and the first bearing and the second bearing of the steering wheel assembly 23 are tightly matched with the mounting seat 25 and fixed in the mounting seat 25. The rotating shaft 11 is inserted into the mounting seat 25, wherein the nut is located above the mounting seat 25, and the rotating shaft 11 is limited from being separated from the first bearing by the mounting seat 25, wherein a box cover 26 is also provided above the mounting seat 25, and the box cover 26 can be used to cover the wires led out from the rotating shaft.

[0035] Furthermore, a third bearing 15 is provided at the bottom of the rotating shaft 11;

[0036] Specifically, in the prior art, since the steering wheel of the folding vehicle body 21 needs to rotate, in order to avoid contact between the wheel fork 10 and the folding vehicle body 21 and the friction that affects the rotation, there is usually a gap between the top of the wheel fork 10 and the folding vehicle body 21. At this time, the folding vehicle body 21 is supported by the rotating shaft 11 and is located above the steering wheel. After the folding vehicle body 21 is loaded with goods, under the action of gravity, the position where the folding vehicle body 21 is connected to the rotating shaft 11 will easily sink. To avoid this situation, a third bearing 15 is further provided at the bottom of the rotating shaft 11. The third bearing is located at the installation position. Below the seat 25, the third bearing 15 is used to fill the gap between the wheel fork 10 and the mounting seat 25, and because the bearing itself is used to enable relative rotation between the two structural members, even if a third bearing 15 is provided between the wheel fork 10 and the folding body 21, it will not affect the rotation of the hub motor 12 too much; preferably, in order to avoid force transmission to the second bearing 14 adjacent to the third bearing 15, the outer diameter of the third bearing 15 is larger than the outer diameter of the second bearing 14, so that the outer ring of the third bearing 15 is in contact with the folding body 21, thereby achieving the effect of supporting the folding body 21 and preventing it from sinking.

[0037] Further, the third bearing 15 is an axial bearing;

[0038] Specifically, since the force direction of the third bearing 15 is mainly along the direction of the rotating shaft 11, in order to ensure its bearing capacity, an axial bearing is preferably used, and in order to further reduce the influence of the rotation of the fork 10 relative to the folding body 21 caused by the setting of the third bearing 15, the third bearing 15 is also preferably a plane bearing that bears axial force, thereby reducing the influence of the rotation caused by the setting of the third bearing 15.

[0039] Furthermore, the first bearing 13 and the second bearing 14 are clearance-fitted with the rotating shaft 11, and the first bearing 13 and the second bearing 14 are fixedly connected to the outside;

[0040] Specifically, in order to prevent the folding body 21 from being damaged easily due to force acting on the first bearing 13 and the second bearing 14 under gravity when the folding body 21 is loaded with a large weight, thereby affecting the durability, a clearance fit is adopted between the first bearing 13 and the second bearing 14 and the rotating shaft 11, wherein the first bearing 13 and the second bearing 14 are respectively fixed in the mounting seat 25, so that the rotating shaft 11 can move relative to the first bearing 13 and the second bearing 14, thereby preventing force from acting on the first bearing 13 and the second bearing 14 through movement, and does not affect the rotation of the fork 10; preferably, the first bearing 13 and the second bearing 14 are of equal size to prevent the smaller one from shaking in the mounting seat 25, resulting in abnormal noise during use.

[0041] Furthermore, a buffer 16 is further provided on the top of the wheel fork 10. The buffer 16 is sleeved on the outer side of the rotating shaft 11. The first bearing 13 and the second bearing 14 are located above the buffer 16.

[0042] Specifically, although the first bearing 13 and the second bearing 14 can be prevented from being subjected to force by the movement of the rotating shaft 11, the movement of the rotating shaft 11 will cause force to act directly on the connection between the folding body 21 and the rotating shaft 11, which will affect the folding body 21 or the wheel fork 10. To avoid this situation, a buffer 16 is further provided on the top of the wheel fork 10. The buffer 16 is sleeved on the outside of the rotating shaft 11. Through the setting of the buffer 16, the force generated by the folding body 21 and the wheel fork 10 after being subjected to force can be buffered, thereby preventing force from directly acting on the folding body 21 or the wheel fork 10, thereby ensuring the service life and stability of the folding body 21.

[0043] It should be noted that the buffer 16 can be a device with the effect of absorbing impact force, such as a coil spring, a damper, etc., or a flexible structural member such as rubber, silicone, etc.

[0044] Furthermore, a wire threading opening 17 is provided on one side of the wheel fork 10, and the wire passing through the rotating shaft 11 passes through the wire threading opening 17 and is connected to the wheel hub motor 12;

[0045] Specifically, in order to reduce the gap between the two sides of the fork 10 and the hub motor 12, a wire threading port 17 is further opened on the top side of the fork 10. The wire threading port 17 is used for allowing the wire to pass into the fork 10 and be led out from the rotating shaft 11. At this time, there is no need to reserve a spacing for the wires between the fork 10 and the hub motor 12.

[0046] Furthermore, a thread 18 is provided at one end of the rotating shaft 11 away from the wheel fork 10, and the rotating shaft 11 is connected to a nut 19 through the thread 18;

[0047] Specifically, in order to prevent the rotating shaft 11 from escaping from the first bearing 13 and the second bearing 14 , a thread 18 is provided on the top of the rotating shaft 11 , and a nut 19 is connected to the thread 18 through the thread 18 , thereby limiting the rotating shaft 11 from escaping from the first bearing 13 and the second bearing 14 through the nut 19 .

[0048] Furthermore, at least one wire clamp 20 is connected to one side of the wheel fork 10 for fixing the wires;

[0049] Specifically, in order to prevent the electric wire from shaking on the side of the fork 10, at least one wire clamp 20 is provided on the side of the fork 10 for clamping and fixing the electric wire.

[0050] Furthermore, a wire guard (not shown) is provided inside the wheel fork 10 above the wheel hub motor 12;

[0051] Specifically, since the distance between the hub motor 12 and the fork 10 is small, in order to prevent the wires from being scratched by the adhesion on the tread of the hub motor 12, a wire guard is provided inside the top of the fork 10 to prevent the adhesion on the tread of the hub motor 12 from contacting the wires. The wire guard can be a baffle located on both sides of the wires and higher than the wires, or it can seal the top of the fork 10 to isolate the wires from the outside.

[0052] In summary, the present application sets the rotating shaft to be hollow so that the wires can be routed inside the rotating shaft, which improves the aesthetics of the vehicle body while preventing the wires from being bumped. At the same time, since the wires are routed inside the rotating shaft, the wires will not affect the rotation of the wheel fork. The third bearing is set to support the folding vehicle body 21, thereby improving stability without affecting the rotation of the wheel fork. The structure is reasonable, which improves the service life of the bearings and increases the stability of the folding vehicle body 21.

[0053] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A hub motor wiring structure for an electric camper, characterized in that: include: A folding vehicle body, the folding vehicle body is a gathering type vehicle body or a folding type vehicle body, one end of the folding vehicle body is provided with a fixed wheel assembly, the other end of the folding vehicle body is rotatably provided with a steering wheel assembly, the end of the folding vehicle body provided with the steering wheel assembly is also provided with a steering rod assembly, the steering rod assembly is connected to the steering wheel assembly, and the steering rod assembly can control the rotation of the steering wheel assembly; the steering wheel assembly comprises: a wheel fork, a wheel hub motor is rotatably connected to the bottom end of the wheel fork, a rotating shaft is provided in the middle of the top of the wheel fork, the interior of the rotating shaft is hollow, an electric wire passes through the middle of the rotating shaft and is connected to the wheel hub motor, the rotating shaft is provided with a first bearing, the first bearing is used to connect with the folding vehicle body, and the wheel fork can rotate relative to the folding vehicle body through the first bearing.

2. The hub motor wiring structure of the electric camper according to claim 1, characterized in that: The rotating shaft is also provided with a second bearing, and the second bearing is spaced apart from the first bearing.

3. The hub motor wiring structure of the electric camper according to claim 1, characterized in that: A third bearing is also provided at the bottom of the rotating shaft, and the third bearing is an axial bearing.

4. The hub motor wiring structure of the electric camper according to claim 2, characterized in that: The first bearing and the second bearing are radial bearings.

5. The wheel hub motor wiring structure of the electric camper according to claim 2, characterized in that: The first bearing and the second bearing are clearance-matched with the rotating shaft, and the first bearing and the second bearing are fixedly connected to the folding vehicle body.

6. The wheel hub motor wiring structure of the electric camper according to claim 5, characterized in that: A buffer is also provided on the top of the wheel fork. The buffer is sleeved on the outer side of the rotating shaft. The first bearing and the second bearing are located above the buffer.

7. The wheel hub motor wiring structure of the electric camper according to claim 1, characterized in that: A wire threading opening is also provided on one side of the wheel fork, and the wire passing through the rotating shaft passes out from the wire threading opening and is connected to the wheel hub motor.

8. The hub motor wiring structure of the electric camper according to claim 1, characterized in that: A thread is arranged at one end of the rotating shaft away from the wheel fork, and the rotating shaft is connected with a nut via the thread.

9. The wheel hub motor wiring structure of the electric camper according to claim 1, characterized in that: At least one wire clamp is connected to one side of the wheel fork for fixing the wires.

10. The hub motor wiring structure of the electric camper according to claim 1, characterized in that: One end of the folding vehicle body provided with the steering wheel assembly is also provided with a mounting seat, the steering wheel assembly is connected to the mounting seat, and the first bearing is tightly matched with the mounting seat.

11. The hub motor wiring structure of the electric camper according to claim 10, characterized in that: A box cover is also provided at the connection between the mounting seat and the rotating shaft, and the electric wire is located in the box cover after being led out from the rotating shaft.

12. The wheel hub motor wiring structure of the electric camper according to claim 7, characterized in that: A wire guard is also provided inside the wheel fork above the wheel hub motor.

Images