A motor fixing structure

Abstract

The utility model discloses a motor fixing structure. It includes a vehicle frame, a connecting piece is fixedly provided at the lower connecting end of the vehicle frame, and a plurality of first through holes are provided on the connecting piece; a motor unit, a mounting table surface matching with the connecting piece is formed on the circumferential outer wall of the motor unit, and a plurality of threaded holes corresponding to the first through holes are provided on the mounting table surface; and a plurality of fasteners, the fasteners are passed through the first through holes and threadedly connected with the threaded holes to fix the motor unit on the vehicle frame. The utility model structure occupies less space and can be applied to lighter vehicles; the vehicle mass is more concentrated, which helps to improve the vehicle's handling; the installation points are more concentrated, which is convenient for fastening and disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor fixing structure. Background Art

[0002] In the prior art, the motor on the electric vehicle is usually provided with a plurality of fixing points circumferentially on its left and right side walls. Correspondingly, the frame on the electric vehicle needs to have two left and right arms, each arm having a mounting hole adapted to the fixing points on the motor, and then the motor is fixed by fasteners, such as the patent documents CN215706913U and CN217294808U previously applied for by the applicant.

[0003] Because the support arms of the vehicle frame in this form are arranged on both sides of the motor, the overall width of the vehicle frame must be larger than the width of the motor, which not only limits the width design development of the vehicle, but also limits the weight reduction design development of the vehicle frame. For this reason, the applicant made further improvements. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a motor fixing structure.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A motor fixing structure, comprising

[0007] A vehicle frame, wherein a connecting piece is fixedly provided at a lower connecting end of the vehicle frame, and a plurality of first through holes are formed on the connecting piece;

[0008] A motor unit, wherein a mounting surface matching the connecting member is formed on a circumferential outer wall of the motor unit, and a plurality of threaded holes corresponding to the first through holes are formed on the mounting surface; and

[0009] A plurality of fasteners are provided through the first through hole and are threadedly connected to the threaded hole to fix the motor unit on the vehicle frame.

[0010] In the above scheme, preferably, the vehicle frame includes a bent portion formed by bending from top to bottom, and the lower connecting end is the lower end of the bent portion.

[0011] In the above solution, preferably, a second through hole is opened in the middle of the connecting member, and the lower connecting end of the vehicle frame is passed through the second through hole.

[0012] In the above solution, preferably, the shape and size of the second through hole are matched with the shape and size of the lower connecting end.

[0013] In the above solution, preferably, the connecting member includes one or more first extension walls extending upward therefrom, and when the connecting member is assembled on the vehicle frame, the first extension walls fit the outer wall of the vehicle frame.

[0014] In the above solution, preferably, the connecting member is welded to the lower connecting end of the vehicle frame.

[0015] In the above solution, preferably, corresponding first through holes are respectively formed at the four corners of the connecting member.

[0016] In the above solution, preferably, the outer periphery of the connecting member includes a second extension wall extending downward therefrom to form an installation cavity adapted to the installation table.

[0017] In the above scheme, preferably, the shape and size of the mounting table are adapted to the shape and size of the mounting cavity, and when the connecting member is assembled on the mounting table, the inner wall of the second extension wall fits with the outer wall of the mounting table.

[0018] In the above solution, preferably, the mounting table includes a groove adapted to the lower connecting end of the vehicle frame.

[0019] The beneficial effects of the utility model are:

[0020] The structure of the utility model occupies less space and can be applied to lighter vehicles;

[0021] The vehicle mass is more centralized, which helps improve vehicle handling;

[0022] The installation points are more centralized, which makes fastening easier and assembly and disassembly more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the utility model.

[0024] Figure 2 It is a schematic diagram of a vehicle frame of the utility model.

[0025] Figure 3 This is a schematic diagram of the connecting piece of the utility model.

[0026] Figure 4 This is a schematic diagram of the connecting piece of the utility model from another perspective.

[0027] Figure 5 It is a schematic diagram of the motor unit of the utility model.

[0028] Figure 6 It is a schematic diagram of the matching state of the motor unit and the connecting piece of the utility model. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0030] See also Figure 1-Figure 6 , a motor fixing structure includes a vehicle frame 1, a motor unit 2 and a plurality of fasteners 3.

[0031] The vehicle frame 1 includes a bent portion formed by bending from top to bottom, the lower end of the bent portion is a lower connecting end 11, and a connecting member 4 is fixedly provided at the lower connecting end 11.

[0032] As one embodiment, the vehicle frame 1 has only one centrally arranged main frame tube 12, and the bending portion is located on the main frame tube 12. The one referred to here is relative to the existing design, such as the patent document CN215706913U previously applied for by the applicant, which has two main frame tubes distributed on the left and right. It should be noted that other sub-frame tubes 13 can be further designed under the main frame tube 12 to improve the vehicle frame connection strength and vehicle stability, such as Figure 1 As shown, a sub-frame tube 13 is designed below the main frame tube 12 , and the front ends of the main frame tube 12 and the sub-frame tube 13 are integrally formed or welded to a connecting metal member 14 .

[0033] The connecting member 4 has a second through hole 41 in the middle thereof, and the lower connecting end 11 of the vehicle frame 1 is passed through the second through hole 41 . The two can be fixed by welding or other methods after being matched.

[0034] As one option, the shape and size of the second through hole 41 are adapted to the shape and size of the lower connecting end 11. The connecting member 4 includes one or more first extension walls 42 extending upward therefrom. When the connecting member 4 is assembled on the vehicle frame 1, the first extension walls 42 fit the outer wall of the vehicle frame 1.

[0035] In this embodiment, the connecting member 4 is further provided with a plurality of first through holes 43. As one option, corresponding first through holes 43 are respectively provided at the four corners of the connecting member 4. Figure 3 , Figure 4 shown.

[0036] The connecting member 4 is used for installing the motor unit 2. Specifically, a mounting table 5 matching the connecting member 4 is formed on the circumferential outer wall of the motor unit 2. When the motor unit 2 is installed on the connecting member 4, the top wall of the mounting table 5 can fit with the inner top wall of the connecting member 4. At the same time, a plurality of threaded holes 51 corresponding to the first through holes 43 are opened on the mounting table 5, so that the motor unit 2 can be fixed to the connecting member 4 by the fastener 3, so that the motor unit 2 is firmly positioned on the vehicle frame 1.

[0037] Specifically, the fastener 3 passes through the first through hole 43 and is threadedly connected to the threaded hole 51 , and is tightened to lock the motor unit 2 .

[0038] For the circumferential outer wall of the motor unit 2 described above, Figure 1 Taking the motor unit shown as an example, its left and right sides are side walls, and the circumferential outer wall is the side wall other than the left and right side walls. The side wall is located between the left and right side walls, which is different from the existing design of connecting the vehicle frame with the left and right side walls of the motor.

[0039] In order to improve the tightness of the connection between the connecting member 4 and the mounting table 5, in this embodiment, the outer periphery of the connecting member 4 includes a second extension wall 44 extending downward therefrom. Figure 4 As shown, the second extension wall 44 forms a wrapping structure, and at the same time forms a mounting cavity 45 on its inner side that is adapted to the mounting table top 5. After the connector 4 is matched with the mounting table top 5, the upper end of the mounting table top 5 is integrally inserted into the mounting cavity 45, and the inner wall of the second extension wall 44 can fit or tend to fit the side wall of the mounting table top 5.

[0040] As an implementation method, the shape and size of the mounting table 5 are matched with the shape and size of the mounting cavity 45 .

[0041] To further enhance the tightness of the fit between the motor unit 2 and the vehicle frame 1 , in this embodiment, the mounting table 5 includes a groove 52 adapted to the lower connecting end 11 of the vehicle frame 1 , and after assembly, a portion of the lower connecting end 11 is inserted into the groove 52 .

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A motor fixing structure, characterized in that: include A vehicle frame, wherein a connecting piece is fixedly provided at a lower connecting end of the vehicle frame, and a plurality of first through holes are formed on the connecting piece; A motor unit, wherein a mounting table surface matching the connecting member is formed on the circumferential outer wall of the motor unit, and a plurality of threaded holes corresponding to the first through holes are formed on the mounting table surface; as well as A plurality of fasteners are provided through the first through hole and are threadedly connected to the threaded hole to fix the motor unit on the vehicle frame.

2. A motor fixing structure according to claim 1, characterized in that: The vehicle frame includes a bent portion formed by bending from top to bottom, and the lower connecting end is the lower end of the bent portion.

3. The motor fixing structure according to claim 1, characterized in that: A second through hole is opened in the middle of the connecting member, and the lower connecting end of the vehicle frame is passed through the second through hole.

4. A motor fixing structure according to claim 3, characterized in that: The shape and size of the second through hole match the shape and size of the lower connecting end.

5. The motor fixing structure according to claim 1, characterized in that: The connecting member includes one or more first extending walls extending upwards thereof. When the connecting member is assembled on the vehicle frame, the first extending walls fit the outer wall of the vehicle frame.

6. A motor fixing structure according to any one of claims 1 to 5, characterized in that: The connecting piece is welded to the lower connecting end of the vehicle frame.

7. The motor fixing structure according to claim 1, characterized in that: The four corners of the connecting member are respectively provided with corresponding first through holes.

8. The motor fixing structure according to claim 1, characterized in that: The outer periphery of the connecting member includes a second extending wall extending downward therefrom to form an installation cavity adapted to the installation table.

9. The motor fixing structure according to claim 8, characterized in that: The shape and size of the installation table are adapted to the shape and size of the installation cavity. When the connecting member is assembled on the installation table, the inner wall of the second extension wall fits with the outer wall of the installation table.

10. The motor fixing structure according to claim 1, characterized in that: The mounting table includes a groove adapted to the lower connecting end of the vehicle frame.

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