CN220732479U

CN220732479U - Lower pipe mechanism of motor seat

Info

Publication number: CN220732479U
Application number: CN202322153231.3U
Authority: CN
Inventors: 龙波平; 钟剑毅
Original assignee: Guangzhou Leonis Machinery Co ltd
Current assignee: Guangzhou Leonis Machinery Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-04-05
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a motor seat lower tube mechanism, which relates to the technical field of electric bicycles and comprises the following components: a motor seat and a lower tube; the motor seat is connected with the bottom end of the lower pipe, and the head end of the lower pipe is used for connecting the head pipe; the motor seat is internally provided with a first inner cavity for installing a motor, and a first aluminum piece is attached to the cavity wall of the first inner cavity. The utility model provides a motor seat lower pipe mechanism which is used for solving the technical problems that a motor installed by the motor seat lower pipe mechanism of the existing electric bicycle shakes to wear the inside of a motor seat when running for a long time, so that the mechanism is easy to deform, the product rigidity test is difficult to pass, and the appearance quality is poor.

Description

Lower pipe mechanism of motor seat

Technical Field

The utility model relates to the technical field of electric bicycles, in particular to a motor seat down tube mechanism.

Background

At present, a motor is required to be installed in a motor seat of a motor seat lower pipe mechanism used for an electric bicycle, the motor shakes to abrade the inside of the motor seat when running for a long time, the motor seat lower pipe mechanism is usually manufactured by adopting a recasting technology, the inside density is loose, the appearance is rough and the deformation is large, the shaking abrasion of the motor is easier to deform, the product rigidity test is difficult to pass, and the appearance quality of the mechanism is poor.

Disclosure of Invention

The embodiment of the utility model discloses a motor seat lower pipe mechanism which is used for solving the technical problems that a motor installed in the motor seat lower pipe mechanism of the existing electric bicycle shakes to wear the inside of the motor seat when running for a long time, so that the mechanism is easy to deform, the product rigidity test is difficult to pass, and the appearance quality is poor.

The embodiment of the utility model provides a motor seat pipe-down mechanism, which comprises: a motor seat and a lower tube;

the motor seat is connected with the bottom end of the lower pipe, and the head end of the lower pipe is used for connecting the head pipe;

the motor seat is internally provided with a first inner cavity for installing a motor, and a first aluminum piece is attached to the cavity wall of the first inner cavity.

Preferably, the number of the first aluminum pieces is two, and the two first aluminum pieces are respectively attached to the left side wall and the right side wall of the first inner cavity.

Preferably, a motor assembly hole is formed in the pipe wall of the motor seat, and the motor assembly hole penetrates through the first aluminum piece.

Preferably, the first aluminum piece is attached to the cavity wall of the first inner cavity through welding.

Preferably, a second inner cavity for installing a battery is formed in the lower pipe.

Preferably, a second aluminum piece is attached to the cavity wall of the second inner cavity.

Preferably, the second aluminum piece is attached to the cavity wall of the second inner cavity by welding.

Preferably, a battery assembly hole is formed in the second inner cavity.

Preferably, the motor seat and the lower pipe are manufactured by integrally forming an oil injection or a water injection.

Preferably, the wall thickness of the motor seat is 2.0-6.0mm; the wall thickness of the lower pipe is 2.0-6.0mm.

The motor seat lower pipe mechanism provided by the utility model has the following advantages:

comprising the following steps: a motor seat and a lower tube; the motor seat is connected with the bottom end of the lower pipe, and the head end of the lower pipe is used for connecting the head pipe; the motor seat is internally provided with a first inner cavity for installing a motor, and a first aluminum piece is attached to the cavity wall of the first inner cavity.

According to the utility model, the bottom end of the lower pipe is connected with the motor seat, the head end of the lower pipe is connected with the pipe, the motor seat is internally provided with the first inner cavity for installing the motor, and the first aluminum piece is arranged on the cavity wall of the first inner cavity of the motor seat in a fitting way, so that the structural strength of the motor seat can be enhanced, the motor seat is favorably verified through a product rigidity test, the degree of shaking and wearing of the motor seat of the motor is favorably reduced, the mechanism is not easy to deform, and the appearance quality of the mechanism is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a motor base down tube mechanism according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a motor seat according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a down tube according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

FIG. 5 is a cross-sectional view B-B of FIG. 1;

FIG. 6 is a cross-sectional view of C-C of FIG. 1;

FIG. 7 is a D-D sectional view of FIG. 1;

in the figure: 1. a motor base; 11. a first lumen; 12. a motor assembly hole; 2. a lower pipe; 21. a second lumen; 22. a battery assembly hole; 3. and a first aluminum piece.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model are clearly and completely described, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

Furthermore, the descriptions of the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In the description of the present utility model, "pairs" means at least two pairs, e.g., two pairs, three pairs, etc., unless specifically defined otherwise; the meaning of "a plurality of" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

Referring to fig. 1 to 7, a motor base down tube mechanism according to an embodiment of the present utility model includes: a motor seat 1 and a lower pipe 2;

the motor seat 1 is connected with the bottom end of the lower pipe 2, and the head end of the lower pipe 2 is used for connecting a head pipe;

the motor seat 1 is provided with a first inner cavity 11 for installing a motor, and a first aluminum piece 3 is attached to the cavity wall of the first inner cavity 11.

It should be noted that, motor seat 1 is connected to down the bottom of pipe 2, and the head end connector pipe of pipe 2 down is provided with the first inner chamber 11 that is used for installing the motor in the motor seat 1, through laminating on the chamber wall of the first inner chamber 11 of motor seat 1 and setting up first aluminum part 3, can strengthen the structural strength of motor seat 1, is favorable to verifying through the test of product rigidity, is favorable to alleviateing the degree of motor shake wearing and tearing motor seat 1, and the mechanism is difficult for warping, has promoted the outward appearance quality of mechanism.

As a further improvement, the number of the first aluminum pieces 3 is two, and the two first aluminum pieces 3 are respectively attached to the left side wall and the right side wall of the first inner cavity 11.

It should be noted that, in order to save the area of the first aluminum part 3, two first aluminum parts 3 are respectively attached to the left side wall and the right side wall of the first inner cavity 11, and the two first aluminum parts 3 are oppositely arranged to clamp the motor from the left side and the right side for installation, so that the motor can swing left and right when shaking, and therefore, the motor can strike the first aluminum part 3, and deformation caused by direct striking of the motor seat 1 is avoided.

The opening of the first cavity 11 is downward, facilitating the upward mounting of the motor. The shape of the first cavity 11 is adapted to the shape of the motor to be installed, and is an open profile formed by CNC numerical control machining.

In another specific embodiment, the number of the first aluminum pieces 3 is one, and the first aluminum pieces 3 are an integral structure distributed on the left side wall and the right side wall of the first inner cavity 11.

As a further improvement, a motor assembly hole 12 is formed in the pipe wall of the motor seat 1, and the motor assembly hole 12 penetrates through the first aluminum piece 3.

It should be noted that, the motor assembly hole 12 formed on the pipe wall of the motor seat 1 penetrates through the first aluminum part 3, and a screw can penetrate through the motor assembly hole 12 to fix the motor beside the first aluminum part 3.

The motor mounting hole 12 is a milled hole.

The motor assembly holes 12 are a plurality of pairs of motor assembly holes 12, and each pair of motor assembly holes 12 is formed on the opposite side walls of the motor seat 1. In fig. 2, the plurality of pairs of motor assembly holes are three pairs of motor assembly holes, wherein one pair of motor assembly holes 12 is arranged at one end of the motor base 1 far away from the lower tube 2, and the other two pairs of motor assembly holes 12 are arranged at one end of the motor base 1 near the lower tube 2.

As a further development, the first aluminum part 3 is attached to the wall of the first inner chamber 11 by welding.

The first aluminum material 3 is bonded to the wall of the first inner cavity 11 by welding, and the first aluminum material 3 is not easily detached and can be more stably fixed to the wall.

As a further improvement, a second inner cavity 21 for installing a battery is formed in the lower tube 2.

The opening of the second cavity 21 faces upward, so that the battery can be mounted downward. The shape of the second cavity 21 is adapted to the height and width of the battery profile to be mounted. The battery in the second cavity 21 is connected to the motor in the first cavity 11 by a cross-wire.

As a further development, a second aluminum part (not shown) is attached to the wall of the second interior space 21.

The second inner cavity 21 is used for installing and accommodating a battery, and the second aluminum member is attached to the cavity wall of the second inner cavity 21, so that the structural strength of the lower tube 2 can be enhanced. The material of the second aluminum member 21 can insulate heat, and can effectively avoid excessive temperature rise caused by direct contact of the lower tube 2 with the heat-generating battery.

As a further development, the second aluminum part is attached to the wall of the second inner chamber 21 by welding.

The second aluminum member is bonded to the wall of the second inner chamber 21 by welding, and the second aluminum member is not easily detached and can be more stably fixed to the wall.

As a further improvement, a battery assembly hole 22 is formed in the second inner cavity 21.

The second inner cavity 21 is provided with a battery mounting hole 22 for fixedly mounting a battery.

The battery mounting holes 22 are milled holes.

The battery assembly holes 22 are multiple, one part of the battery assembly holes 22 are positioned at the position of the second inner cavity 21 close to the motor seat 1, and the other part of the battery assembly holes 22 are positioned at the position of the second inner cavity 21 far away from the motor seat 1, so that the stability of fixing the battery from two ends is better.

As a further improvement, the motor seat 1 and the lower pipe 2 are manufactured by integrally forming an oil injection or a water injection.

In the prior art, a motor seat lower pipe mechanism used by an electric bicycle is formed by welding a motor seat manufactured by a forging process and a lower pipe manufactured by a section bar or a water injection, and has the advantages of higher manufacturing cost, low efficiency and poor appearance quality;

compared with the split motor seat 1 and the lower pipe 2 which need to be assembled, the integrally formed motor seat 1 and lower pipe 2 have simpler manufacturing steps and higher efficiency, the motor seat 1 and the lower pipe 2 cannot be scattered, and the connection between the motor seat 1 and the lower pipe 2 is smoother;

in the prior art, the motor seat 1 and the lower pipe 2 manufactured by adopting the recasting technology have loose and hollow internal density, rough appearance, easy cracking and larger deformation, are easy to generate the conditions of frame baking varnish foaming or frame cracking, have poor appearance quality and have potential safety hazards;

according to the utility model, the motor seat 1 and the lower pipe 2 which are integrally formed by oil injection or water injection are smooth in appearance, so that the subsequent paint baking process is facilitated, the appearance design is more attractive, the combination of X-ray verification and the frame EN15194 test marking actual measurement results shows that the motor seat 1 and the lower pipe 2 which are integrally formed by oil injection or water injection are high in internal density, are not easy to deform, and improve the frame safety.

Under the same condition, the motor seat lower pipe mechanism formed by adopting the oil injection or water injection integrated forming gravity casting process saves 60 percent of cost.

The process flow of the water injection integrated molding is as follows: shrinking pipe, bending, expanding pipe, flattening, shaping, water injection and CNC numerical control machine tool processing;

the motor seat pipe-discharging mechanism with better appearance quality can be manufactured by a process mode that gas or other liquid fills the inside of the pipe fitting and applies pressure to enable the pipe material to be molded in the die cavity.

As a further improvement, the wall thickness of the motor seat 1 is 2.0-6.0mm; the wall thickness of the lower tube 2 is 2.0-6.0mm.

The foregoing describes a motor base down tube mechanism provided by the present utility model in detail, and those skilled in the art will appreciate that the present utility model is not limited to the above description, except insofar as modifications may be made in accordance with the principles and concepts of the embodiments of the present utility model.

Claims

1. A motor mount lower tube mechanism, comprising: a motor seat and a lower tube;

2. The motor mount lower pipe mechanism according to claim 1, wherein the number of the first aluminum pieces is two, and the two first aluminum pieces are respectively attached to the left side wall and the right side wall of the first inner cavity.

3. The motor mount lower pipe mechanism according to claim 1, wherein a motor mounting hole is formed in a pipe wall of the motor mount, and the motor mounting hole penetrates through the first aluminum member.

4. The motor mount lower tube mechanism of claim 1, wherein the first aluminum member is attached to a wall of the first inner cavity by welding.

5. The motor mount lower tube mechanism as set forth in claim 1, wherein a second interior cavity for mounting a battery is formed in said lower tube.

6. The motor mount lower tube mechanism as set forth in claim 5, wherein a second aluminum member is attached to a wall of said second interior chamber.

7. The motor mount lower tube mechanism of claim 6, wherein the second aluminum member is attached to a wall of the second inner chamber by welding.

8. The motor mount lower tube mechanism as set forth in claim 5, wherein said second interior cavity defines a battery assembly aperture therein.

9. The motor mount lower tube mechanism of claim 1, wherein the motor mount and the lower tube are integrally formed by injection molding.

10. The motor mount lower tube mechanism of claim 1 or 5, wherein the motor mount has a wall thickness of 2.0-6.0mm; the wall thickness of the lower pipe is 2.0-6.0mm.