Integrated structure of motor seat and lower pipe

Abstract

The utility model discloses an integrated structure of a motor seat and a lower pipe. The integrated structure of the motor seat and the lower pipe comprises the motor seat and the lower pipe, the motor seat is connected with the lower pipe; the motor seat comprises a mounting inner cavity and a motor mounting structure; the motor mounting structure is arranged in the mounting inner cavity and comprises a connecting part and a fixing part, the fixing part is connected to the inner wall of the mounting inner cavity through the connecting part, and the fixing part is used for fixing a motor. The motor mounting structure is arranged in the mounting inner cavity, and the motor is fixed through the fixing part in the mounting inner cavity, so that stable connection between the motor and the motor seat is realized. Therefore, while the motor is fixed by the motor mounting structure, the problem that the outer surface of the motor seat is not flat due to the fact that the fastener protrudes out of the outer surface of the motor seat can be solved, and the problem of interference between the motor seat and other parts due to the fact that the outer surface of the motor seat is not flat is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bicycle accessories field especially relates to motor seat and lower tube integral structure. BACKGROUND

[0002] In the related art, the motor seat and lower tube integral structure comprises a motor seat, the motor seat is provided with a fastening hole, and a fastener is arranged through the fastening hole to fixedly connect the motor.

[0003] However, this assembly method has certain problems. In actual operation, after the fastener is arranged through the fastening hole, the fastener can protrude from the outer surface of the motor seat, so that the outer surface of the motor seat is uneven. This uneven outer surface causes interference when the motor seat cooperates with other components of the electric bicycle, thereby affecting the normal cooperation and overall performance of the components of the electric bicycle. SUMMARY

[0004] The utility model aims at at least solves one of the prior art technical problems. For this reason, one purpose of the utility model is to provide a motor seat and lower tube integral structure, the motor mounting structure is arranged in the installation inner cavity, and the problem of uneven outer surface of the motor seat caused by the protrusion of the fastener is improved.

[0005] The utility model embodiment provides a motor seat and lower tube integral structure, including motor seat and lower tube, the motor seat is linked with lower tube, the motor seat includes installation inner cavity and motor mounting structure, the motor mounting structure is located in the installation inner cavity and includes connecting portion and fixed portion, the fixed portion is connected on the cavity inner wall of the installation inner cavity through the connecting portion, and the fixed portion is used for fixing motor.

[0006] In some embodiments, the fixed portion includes a fixed plate and a fastening hole formed on the fixed plate.

[0007] In some embodiments, the connecting portion has a fastener accommodating cavity, and the fastening hole is in communication with the fastener accommodating cavity.

[0008] In some embodiments, the motor seat is provided with a through hole, the through hole is in communication with the fastener accommodating cavity and is axially aligned with the fastening hole.

[0009] In some embodiments, the connecting portion is configured as a convex column structure.

[0010] In some embodiments, the motor mounting structure is a group of two and includes at least two groups, at least one of the motor mounting structure is arranged at one end of the motor seat close to the lower tube, and at least another motor seat mounting structure is arranged at one end of the motor seat away from the lower tube.

[0011] In some embodiments, the motor seat comprises a first end wall, a second end wall and a surrounding wall, the first end wall, the second end wall and the surrounding wall surround an installation inner cavity, the surrounding wall is provided with an installation opening for communicating the installation inner cavity; the first end wall and the second end wall are both provided with a driving shaft avoiding structure; the outer surface of the first end wall and the outer surface of the second end wall are parallel, and the motor installation structure is arranged on the inner surface of the first end wall and the second end wall.

[0012] In some embodiments, a plurality of lower cover assembly holes are further included; a part of the lower cover assembly holes are arranged on the surrounding wall, and another part of the lower cover assembly holes are arranged on the end of the lower pipe close to the motor seat.

[0013] In some embodiments, the lower pipe is provided with a battery installation cavity; the battery installation cavity is communicated with the installation inner cavity through a communication opening; and the communication opening is used for passing through an electrical connecting piece.

[0014] In some embodiments, the motor seat and the lower pipe are integrally formed by oil injection or water injection.

[0015] In combination with the technical scheme, it can be seen that the embodiments provided by the utility model have the following advantages:

[0016] 1. The motor installation structure is arranged in the installation inner cavity, and the motor is fixed by the fixing part in the installation inner cavity, so that stable connection between the motor and the motor seat is realized. Thus, while the motor installation structure fixes the motor, it can also improve the problem of unevenness of the outer surface of the motor seat caused by the protrusion of the fastener out of the outer surface of the motor seat, and further improve the interference problem between the motor seat and other components caused by the unevenness of the outer surface of the motor seat.

[0017] 2. The utility model embodiment sets the connecting part between the cavity inner wall of the installation inner cavity and the fixing part, and the setting of the connecting part can share the structure stress to some extent and make up for the loss of the structural strength caused by the other measures taken to avoid the protrusion of the fastener. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0019] Figure 1 It is a structural schematic view of the motor seat and the lower pipe integrated structure according to the utility model embodiment;

[0020] Figure 2is a partial enlarged view of the motor seat and lower pipe integrated structure according to the embodiment of the utility model;

[0021] Figure 3 is a structural schematic view of the motor seat and lower pipe integrated structure according to the embodiment of the utility model;

[0022] Figure 4 is according to Figure 3 The sectional view at C-C.

[0023] Reference signs:

[0024] Motor seat and lower pipe integrated structure 100;

[0025] Motor seat 1, first end wall 111, outer surface 111a of first end wall, second end wall 112, outer surface 112b of second end wall, surrounding wall 113, mounting port 114, driving shaft avoiding structure 115, mounting inner cavity 12, motor mounting structure 13, connecting part 131, fixing part 132, fixing plate 1321, fastening hole 1322, through hole 133, lower cover assembly hole 14;

[0026] Lower pipe 2;

[0027] Communication port 3. DETAILED DESCRIPTION

[0028] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0029] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as limiting the utility model. In addition, the features limited as "first", "second" can be explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0030] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication. For ordinary skilled in the art, the above-mentioned term can be understood in the utility model specific meaning of the specific circumstances.

[0031] Reference is made below Figures 1-4 The motor seat and lower pipe integrated structure 100 according to the utility model embodiment is described.

[0032] As Figure 1 Indicated, the utility model provides a kind of motor seat and lower pipe integrated structure 100, motor seat and lower pipe integrated structure 100 include motor seat 1 and lower pipe 2, motor seat 1 is connected with lower pipe 2.

[0033] Motor seat 1 includes installation inner cavity 12 and motor installation structure 13, and motor installation structure 13 is located in installation inner cavity 12.Motor installation structure 13 includes connecting portion 131 and fixed portion 132, and fixed portion 132 is connected on the cavity inner wall of installation inner cavity 12 by connecting portion 131, and fixed portion 132 is used to fix motor.

[0034] In one specific application scenario, motor is arranged in installation inner cavity 12, and is fixed by motor installation structure 13 in installation inner cavity 12.Specifically, motor installation structure 13 includes connecting portion 131 and fixed portion 132, and fixed portion 132 is connected on the cavity inner wall of installation inner cavity 12 by connecting portion 131.

[0035] It can be seen from the technical scheme that the embodiments provided by the utility model have the following advantages:

[0036] 1, motor installation structure 13 is arranged in installation inner cavity 12, and motor is fixed by fixed portion 132 in installation inner cavity 12, to realize the stable connection between motor and motor seat 1.Therefore, motor installation structure 13 can improve the problem of unevenness of the outer surface of motor seat 1 caused by fastener protruding from the outer surface of motor seat 1 while fixing motor, and further improve the interference problem between motor seat 1 and other components caused by unevenness of the outer surface.

[0037] 2. In related technologies, the fastening hole 1322 uses a countersunk hole technique to improve the flatness of the outer surface, but this reduces the structural strength of the integrated structure 100 of the motor seat and the lower tube. In this embodiment of the utility model, a connecting part 131 is provided between the inner wall of the mounting cavity 12 and the fixing part 132. The connection part 131 can, to a certain extent, share the structural stress and compensate for the loss of structural strength caused by the countersunk hole adopted to avoid the fastener protrusion.

[0038] like Figure 2 and Figure 4 As shown, the fixing part 132 further includes a fixing plate 1321 and a fastening hole 1322, the fastening hole 1322 being formed on the fixing plate 1321. The fastening hole 1322 penetrates the fixing plate 1321 along the thickness direction. Specifically, the operator fixes the motor by passing a fastener through the fastening hole 1322. By providing the connecting part 131, the problem of fastener protrusion is improved, and the impact on the original structural strength of the motor seat and lower tube integrated structure 100 is reduced.

[0039] Furthermore, the connecting portion 131 has a fastener receiving cavity, and the fastening hole 1322 communicates with the fastener receiving cavity. A portion of the fastener can be accommodated in the fastener receiving cavity, which can further improve the problem of unevenness on the outer surface of the motor seat and lower tube integrated structure 100 caused by the fastener protrusion.

[0040] For example, when the fastener is a bolt, the bolt head can be accommodated in the fastener receiving cavity.

[0041] like Figure 2 and Figure 4 As shown, the motor base 1 further includes a through hole 133, which connects to the fastener receiving cavity. The through hole 133 is axially aligned with the fastening hole 1322. The operator can access the fastener from the outer surface of the integrated structure 100 of the motor base and lower tube, allowing the fastener to pass through the through hole 133, the fastener receiving cavity, and the fastening hole 1322 in sequence. The fastening hole 1322 can then be assembled and fixed with the motor in the mounting cavity 12. This means that the through hole 133 allows the operator to access the fastener from the outer surface of the integrated structure 100 of the motor base and lower tube, eliminating the need for operation from complex internal spaces or multiple angles. This direct approach reduces operational difficulty and time costs. The axial alignment of the through hole 133 and the fastening hole 1322 enables the operator to quickly and accurately position and assemble the fastener, significantly improving assembly efficiency.

[0042] like Figure 2 and Figure 4 As shown, the connecting part 131 is further constructed as a protruding column structure. The protruding column structure can provide stable support for the fixing plate 1321 and the motor, enhancing the motor fixing capability of the integrated structure 100 of motor seat and lower tube.

[0043] As shown in Figure 2 and Figure 4 , in combination with the above embodiments, the connecting portion 131 is configured as a protruding column connected to the cavity wall of the mounting inner cavity 12, the protruding column has a fastener receiving cavity penetrating in the axial direction, the fastener receiving cavity is a cylindrical cavity, the end of the protruding column away from the cavity wall is connected with a fixing plate 1321, the fixing plate 1321 is provided with a fastening hole 1322, the fastening hole 1322, the fastener receiving cavity and the through hole 133 are aligned in the axial direction.

[0044] As shown in Figure 2 and Figure 4 , in one specific example, the hole diameter of the fastening hole 1322 is smaller than the radial dimension of the fastener receiving cavity, and the hole diameter of the fastening hole 1322 is smaller than the hole diameter of the through hole 133. The hole diameter of the fastening hole 1322 is smaller than the hole diameter of the through hole 133, which facilitates the smooth introduction of the fastener during assembly, and the smaller hole diameter of the fastening hole 1322 can closely match the fastener to achieve reliable fastening connection, further ensuring the stability of the assembly.

[0045] As shown in Figure 2 and Figure 4 , further, the motor mounting structure 13 includes at least two groups, each group of motor mounting structure 13 includes two; wherein at least one group of motor mounting structure 13 is provided on the end of the motor seat 1 close to the lower pipe 2, and at least another group of motor seat 1 mounting structure is provided on the end of the motor seat 1 away from the lower pipe 2. Specifically, one group of motor mounting structure 13 includes left and right motor mounting structures respectively, the left motor mounting structure is provided on the left cavity wall of the mounting inner cavity 12, and the right motor mounting structure is provided on the right cavity wall of the mounting inner cavity 12. The left and right motor mounting structures are aligned in the left and right directions. At least one group of motor mounting structure 13 is provided on the two ends of the motor seat 1 close to and away from the lower pipe 2, which can fix the motor in multiple positions and enhance the stability and reliability of the assembly between the motor seat 1 and the motor. As shown in Figure 2 and Figure 3As shown, further, the motor seat 1 comprises a first end wall 111, a second end wall 112 and a surrounding wall 113, which enclose the installation inner cavity 12, and the surrounding wall 113 is provided with an installation opening 114 for communicating the installation inner cavity 12; the first end wall 111 and the second end wall 112 are both provided with a driving shaft avoiding structure 115; the outer surface 111a of the first end wall and the outer surface 112b of the second end wall are parallel, and the motor installation structure 13 is arranged on the inner surfaces of the first end wall 111 and the second end wall 112. The installation opening 114 provided on the surrounding wall 113 communicates the installation inner cavity 12, providing a convenient channel for the installation and removal of the motor. The first end wall 111 and the second end wall 112 are located at the axial ends of the motor driving shaft, i.e. the first end wall 111 is perpendicular to the axial direction of the motor driving shaft, and the second end wall 112 is perpendicular to the axial direction of the motor driving shaft, and the parallel arrangement of the outer surface 111a of the first end wall and the outer surface 112b of the second end wall is conducive to improving the assembly accuracy between the motor seat and the lower pipe integrated structure 100 and other components, reducing the influence on the chain transmission, and thus being conducive to reducing power consumption.

[0046] As Figure 2 shown, it needs to be further explained that the driving shaft avoiding structure 115 here is a hollowed-out area machined on the first end wall 111 and / or the second end wall 112, and the contour of the hollowed-out area needs to be designed in specific reference to the contour of the motor. After the development contour is machined on the basis of the motor contour using CNC (Computer Numerical Control Machining), the first end wall 111 and / or the second end wall 112 are cut to avoid interference between the first end wall 111 and the second end wall 112 and the motor.

[0047] In combination Figure 3 shown, in a preferred example, the inner surface of the first end wall 111 is provided with two motor installation structures 13, one arranged near one end of the first end wall 111 close to the lower pipe 2, and the other arranged at the end of the first end wall 111 away from the lower pipe 2; the inner surface of the second end wall 112 is provided with two motor installation structures 13, one arranged near one end of the second end wall 112 close to the lower pipe 2, and the other arranged at the end of the second end wall 112 away from the lower pipe 2. Through this structure, the motor is fixed in multiple positions, enhancing the stability and reliability of the assembly between the motor seat 1 and the motor. The first end wall 111 and the second end wall 112 here correspond to the left and right cavity walls of the installation inner cavity in the above-mentioned embodiments, respectively.

[0048] As Figure 2As shown, further, the motor seat and lower tube integrated structure 100 further comprises a plurality of lower cover assembly holes 14; a part of the lower cover assembly holes 14 are arranged on the surrounding wall 113, and the other part of the lower cover assembly holes 14 are arranged on the end of the lower tube 2 close to the motor seat 1. The lower cover is installed behind the motor seat and lower tube integrated structure 100 through the lower cover assembly holes 14, and the lower cover and the motor seat and lower tube integrated structure 100 can form a relatively closed space, reducing the entry of external pollutants such as dust, rainwater, sundries, etc. into the interior of the motor seat 1, protecting the motor and other internal components, and also playing a role in sound insulation and noise reduction to a certain extent, improving the riding comfort of the electric bicycle. By dispersing the plurality of lower cover assembly holes 14 on the surrounding wall 113 and the lower tube 2, the influence on the flatness of the outer surfaces of the first end wall 111 and the second end wall 112 can be reduced, and the stability and reliability of the connection between the lower cover and the motor seat and lower tube integrated structure 100 can be improved.

[0049] In combination Figures 1-3 And Figures 2-4 Figure 1 Figure 2 As shown, further, the lower tube 2 is provided with a battery mounting cavity, and the battery mounting cavity is communicated with the mounting inner cavity 12 through a communication port 3, and the communication port 3 is used for passing through an electrical connecting piece. The communication port 3 can pass through the electrical connecting piece, and the electrical connecting piece can connect the battery and the motor through the communication port 3, so as to realize the power supply of the battery to the motor. The lower tube 2 can protect the battery and reduce the scratching of the battery, thereby improving the safety.

[0050] Further, the motor seat 1 and the lower tube 2 are integrally formed by oil injection or water injection.

[0051] The other constitution and operation of the motor seat and lower tube integrated structure 100 according to the embodiments of the utility model are known to those skilled in the art, and will not be described in detail here. In the description of the utility model, "first feature", "second feature" can include one or more features. Among them, the up-down direction, the left-right direction and the front-rear direction are based on the up-down direction, the left-right direction and the front-rear direction shown in the figure.

[0052] In the description of the utility model, unless otherwise explicitly specified and limited, the "first feature" above or below the "second feature" can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "first feature" above, above and above the "second feature" includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.

[0053] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A motor base and lower tube integrated structure, characterized by, The utility model relates to a motor seat (1) and lower pipe (2) are connected, the motor seat (1) includes the installation inner chamber (12) and the motor installation structure (13), the motor installation structure (13) is arranged in the installation inner chamber (12) and includes the connecting portion (131) and the fixed portion (132), the fixed portion (132) is connected on the cavity inner wall of the installation inner chamber (12) through the connecting portion (131), and the fixed portion (132) is used for fixing motor. The fixed portion (132) includes the fixed plate (1321) and the fastening hole (1322) set up on the fixed plate (1321). The connecting portion (131) has a fastener accommodating cavity, and the fastening hole (1322) is in communication with the fastener accommodating cavity. The motor seat (1) is provided with a through hole (133), and the through hole (133) is in communication with the fastener accommodating cavity and axially aligned with the fastening hole (1322). The connecting portion (131) is configured as a convex column structure.

2. The motor base and lower tube integrated structure of claim 1, wherein, The motor installation structure (13) is two two for a group and includes at least two groups.

3. The motor base and lower tube integrated structure of claim 2, wherein, At least one of the motor installation structure (13) is arranged at one end of the motor seat (1) close to the lower pipe (2), and at least another group of the motor seat (1) installation structure is arranged at one end of the motor seat (1) away from the lower pipe (2).

4. The motor base and lower tube integrated structure of claim 3, wherein, The motor seat (1) includes a first end wall (111), a second end wall (112) and a surrounding wall (113), the first end wall (111), the second end wall (112) and the surrounding wall (113) are arranged to form an installation inner chamber (12), and the surrounding wall (113) is provided with an installation opening (114) for communicating the installation inner chamber (12); 5. The motor base and lower tube integrated structure of claim 3, wherein, The first end wall (111) and the second end wall (112) are provided with a driving shaft avoiding structure (115); 6. The motor base and lower tube integrated structure of claim 1, wherein, The outer surface (111a) of the first end wall and the outer surface (112b) of the second end wall are parallel, and the motor installation structure (13) is arranged on the inner surfaces of the first end wall (111) and the second end wall (112). Further comprising a plurality of lower cover assembly holes (14); 7. The motor base and lower tube integrated structure of claim 1, wherein, Part of the lower cover assembly holes (14) are arranged on the surrounding wall (113), and another part of the lower cover assembly holes (14) are arranged at one end of the lower pipe (2) close to the motor seat (1). The lower pipe (2) is provided with a battery installation cavity; The battery installation cavity is in communication with the installation inner chamber (12) through a communication port (3); 8. The motor base and lower tube integrated structure of claim 7, wherein, The communication port (3) is used for passing through an electrical connecting member. The motor seat (1) and the lower pipe (2) are integrally formed by oil injection or water injection.

9. The motor base and lower tube integrated structure of claim 1, wherein, ​ ​ ​ 10. The motor base and lower tube integrated structure of any one of claims 1-9, wherein, ​

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