Integrated electric bicycle frame

Abstract

The utility model discloses an integrated electric bicycle frame and relates to the technical field of bicycles. Comprising a frame body, a power supply plug bush is arranged on a middle cross beam of the frame body, bearing beams, close to front wheels, at the bottom of the frame body are of a separated structure design, and an assembly structure is arranged between the cross beam and the two separated bearing beams at the bottom of the frame body and has a driving source containing function. The driving source is electrically connected with the power supply plug bush, and the bearing beam of the separated structure design is of a hollow tubular structure. The bearing beam at the bottom of the frame body adopts a separated structural design, and is matched with the assembly structure and the air charging device, so that the driving source and the air charging device are reasonably mounted and accommodated, the structural integrity of the bearing beam can be conveniently recovered as required, the structural strength of the frame is ensured, and the service life of the frame is prolonged. And the installation and maintenance convenience of the driving source is improved.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, specifically to an integrated electric bicycle frame. Background Technology

[0002] As a key supporting component of electric bicycles, the structural design of the electric bicycle frame directly affects the overall performance of the vehicle.

[0003] A search revealed that Chinese utility model patent application with publication number "CN216301359U" proposes "an integrated electric bicycle frame". The frame body is constructed by assembling and welding the left and right halves of the frame, which allows for greater integration of the various structures, improves the assembly efficiency of the frame body, and enhances the aesthetics of the bicycle.

[0004] However, in actual use, the aforementioned devices and similar existing devices require a complete disassembly for power system maintenance due to the separate installation structure of the drive source and the frame body, which greatly increases maintenance costs. In addition, the frame has structural defects in the integration of the inflation device, and the inflation device is not portable and easy to store, causing many inconveniences to users. Utility Model Content

[0005] The purpose of this invention is to provide an integrated electric bicycle frame to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated electric bicycle frame, comprising: a frame body, a power supply socket provided at the crossbeam in the middle section of the frame body, a load-bearing beam at the bottom of the frame body near the front wheel with a separate structure design, an assembly structure configured between the crossbeam and the two separate load-bearing beams at the bottom of the frame body, the assembly structure having a drive source accommodating function, and an electrical connection established between the drive source and the power supply socket;

[0007] The load-bearing beam with a split structure adopts a hollow tubular structure. One of the tubes has a stress-bearing notch on its outer surface. The integrity of the load-bearing beam structure is restored by inserting an inflation device between the two tubes. The operating handle of the inflation device and the stress-bearing notch exhibit geometric adaptation characteristics.

[0008] Furthermore, the assembly structure includes: two motor reinforcing ribs, respectively configured and fixed between the crossbeam and the two tubes, the two motor reinforcing ribs being placed within the normal plane formed by the surfaces between the crossbeam and the two tubes, and a motor assembly frame installed between the two motor reinforcing ribs, the motor assembly frame being used to install the drive source.

[0009] Furthermore, the top and bottom surfaces of the motor assembly frame are respectively fitted with closed sleeves. When the two closed sleeves move towards each other in the normal plane, they press against the surface of the drive source and complete the positioning of the drive source within the motor assembly frame.

[0010] Furthermore, the vertical beam in the middle of the vehicle frame and the motor reinforcing rib are respectively provided with wire holes and wire harness holes, and the inner wall of the wire holes is provided with elastic sealing rings.

[0011] Furthermore, the rear fork of the frame is integrated with a controller mounting base. The surface of the controller mounting base is provided with a honeycomb heat dissipation grille, and the internal cavity of the controller mounting base forms a heat conduction path with the drive source shell through a thermally conductive silicone pad.

[0012] Furthermore, the edge of the force-bearing notch is provided with a magnetic block, which is used to attract metal parts and prevent the inflation device from shifting during installation.

[0013] Furthermore, the inner wall of the closed sleeve is provided with a rubber anti-slip pad to increase the friction with the surface of the drive source, ensure stable positioning, and prevent the drive source from shaking during vehicle operation.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This integrated electric bicycle frame, through the separate structural design of the load-bearing beam at the bottom of the frame, and in conjunction with the assembly structure and inflation device, not only achieves reasonable installation and accommodation of the drive source and inflation device, but also allows for easy restoration of the structural integrity of the load-bearing beam when needed. This ensures the structural strength of the frame while improving the convenience of drive source installation and maintenance.

[0016] By using motor reinforcing ribs, motor mounting brackets, and specially designed closing sleeves, the drive source can be effectively positioned, reducing its shaking during vehicle operation and improving overall stability. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of the present invention;

[0018] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0019] Figure 3 for Figure 1 A magnified view of part B in the middle section.

[0020] In the diagram: 1. Frame body; 2. Power supply socket; 3. Closure sleeve; 4. Motor assembly bracket; 5. Wiring harness hole; 6. Motor reinforcing rib; 7. Stress-bearing notch; 8. Parts storage tube; 9. Wiring hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Before understanding the technical solution proposed in this application, it is important to understand the combination of Figures 1 to 3 As shown, in this embodiment, the frame body 1 is manufactured using aluminum alloy extrusion molding process. The mounting base of the power supply socket 2 is pre-embedded inside the crossbeam. During assembly, the drive source (not shown) is first placed inside the motor mounting bracket 4. The upper and lower closing sleeves are retracted along the normal plane by rotating the fastening bolts of the closing sleeve 3. The frictional resistance generated by the rubber anti-slip pad is used to achieve three-way fixation of the drive source. Then, the operating handle of the inflation device (not shown) is aligned with the trapezoidal groove of the force notch 7 and inserted. At this time, the magnetic block and the metal shell of the inflation device have an adsorption effect to ensure that the sealing surface is completely in contact. During the wiring harness arrangement stage, the power cord must first be inserted through the elastic sealing ring of the wire hole 9 and extended along the pre-set wiring groove on the outside of the motor reinforcing rib 6 to the controller mounting base.

[0023] Specifically, such as Figures 1-3 As shown, the technical device proposed in this application includes: a frame body 1 adopts a high-strength aluminum alloy frame structure, the surface of which is anodized to form a protective layer; a power supply socket 2 is provided at the crossbeam in the middle section of the frame body 1, the power supply socket 2 adopts a three-way conductive copper core array arrangement, and is equipped with a waterproof and insulating cover; the load-bearing beam at the bottom of the frame body 1 near the front wheel adopts a separate structure design, and an assembly structure is configured between the crossbeam and the two separate load-bearing beams at the bottom of the frame body 1; the assembly structure achieves quick assembly and disassembly through a two-way locking mechanism; its internal cavity is equipped with a shock-absorbing rubber pad and has the function of accommodating the drive source; the drive source is a brushless DC motor module, which is packaged... An electrical connection is established between the heat dissipation channel and the power supply socket 2, and the connecting wire harness adopts a spiral tensile-resistant wiring method. It should be noted that the load-bearing beam with the split structure design adopts a hollow tubular structure, and its wall thickness has been optimized by finite element stress analysis. An air guide channel is provided inside the tube. One of the tubes is the accessory compartment tube 8. The outer surface of the accessory compartment tube 8 has a stress notch 7 at a 45-degree angle. The edge of the stress notch 7 is treated with laser chamfering. The integrity of the load-bearing beam structure is restored by inserting an air inflation device between the two tubes. The operating handle of the air inflation device adopts an ergonomic curved surface design and presents a geometric adaptation feature with the stress notch 7.

[0024] As a preferred embodiment, the assembly structure in this embodiment includes: two motor reinforcing ribs 6, each cast from high-strength alloy steel, fixed between the crossbeam and the two pipes. The two motor reinforcing ribs 6 are placed in the normal plane formed by the surfaces between the crossbeam and the two pipes, and their extension direction is inclined at an angle of 8-12° with the axis of the pipe to optimize stress distribution. A trapezoidal cross-section motor assembly frame 4 is welded between the two motor reinforcing ribs 6. The motor assembly frame 4 adopts a box-type structure design and is used to install the drive source. Its inner cavity surface is covered with a 3mm thick shock-absorbing rubber layer. It should be noted that the top and bottom surfaces of the motor assembly frame 4 are respectively machined with dovetail groove guide rails (not shown in the attached figure). The closing sleeve 3 is sleeved with it through an adjustable clearance sliding pair. When the two closing sleeves 3 move towards each other in the normal plane, they squeeze the surface of the drive source and complete the multi-directional positioning of the drive source within the motor assembly frame 4.

[0025] As a preferred embodiment, in this embodiment, the vertical beam in the middle of the frame body 1 and the motor reinforcing rib 6 are respectively provided with a wire hole 9 and a wire harness hole 5. The inner wall of the wire hole 9 is provided with an elastic sealing ring. The rear fork of the frame body 1 is integrated with a controller mounting base. The surface of the controller mounting base is provided with a honeycomb heat dissipation grille. The internal cavity of the controller mounting base forms a heat conduction path with the drive source shell through a thermally conductive silicone pad. The edge of the force notch 7 is provided with a magnetic block. The magnetic block is used to attract metal parts and prevent the inflation device from shifting during the installation process. Finally, it should be noted that the inner wall of the closing sleeve 3 is provided with a rubber anti-slip pad to increase the friction with the surface of the drive source, ensure stable positioning, and prevent the drive source from shaking during vehicle operation.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated electric bicycle rack comprising: The utility model provides a kind of vehicle frame body (1), it is characterized by: The utility model provides a kind of vehicle frame body (1), it is characterized by: The hollow tubular structure of the load-bearing beam of the split structure design is provided with stress notch (7) on the outer surface of one pipe body, and the structural integrity of the load-bearing beam is restored by inserting the inflating device between the two pipe bodies, and the operating handle of the inflating device is geometrically matched with the stress notch (7).

2. The integrated electric bicycle rack of claim 1, wherein: The assembly structure includes two motor reinforcing ribs (6) arranged between the crossbeam and the two pipe bodies respectively, the two motor reinforcing ribs (6) are arranged in the normal plane formed between the crossbeam and the two pipe bodies, and a motor assembly frame (4) is installed between the two motor reinforcing ribs (6), and the motor assembly frame (4) is used for installing the driving source.

3. The integrated electric bicycle rack of claim 2, wherein: The top surface and the bottom surface of the motor assembly frame (4) are respectively sleeved with a closed sleeve (3), and when the two closed sleeves (3) move towards each other in the normal plane, the surface of the driving source is squeezed, and the positioning of the driving source in the motor assembly frame (4) is completed.

4. The integrated electric bicycle rack of claim 2, wherein: The vertical beam in the middle of the vehicle frame body (1) and the outer part of the motor reinforcing rib (6) are respectively provided with a threading hole (9) and a wire harness hole (5), and the inner wall of the threading hole (9) is provided with an elastic sealing ring.

5. The integrated electric bicycle rack of claim 4, wherein: The rear fork part of the vehicle frame body (1) is integrated with a controller mounting seat, the surface of the controller mounting seat is provided with a honeycomb-shaped heat dissipation grille, and the internal cavity of the controller mounting seat forms a heat conduction path with the shell of the driving source through a heat-conducting silica gel pad.

6. The integrated electric bicycle rack of claim 1, wherein: The edge of the stress notch (7) is provided with a magnetic block, which is used for adsorbing metal parts, and prevents the inflating device from shifting during installation.

7. The integrated electric bicycle rack of claim 3, wherein: The inner wall of the closed sleeve (3) is provided with a rubber antiskid pad, which increases the friction force with the surface of the driving source, ensures the positioning stability, and avoids the shaking of the driving source during vehicle driving.

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