Gearbox process fixing structure for automobile micro motor
By setting a first positioning structure and a second positioning structure on the automotive micro-motor gearbox, the assembly process is simplified, assembly consistency is improved, and costs are reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INTEVA PROD ZHENJIANG
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-07
AI Technical Summary
The existing assembly process for automotive micro-motor gearboxes is complex and costly, and is difficult to simplify and optimize.
The first positioning structure and the second positioning structure are respectively set on the top of the gearbox and the mounting port of the motor body, and the assembly consistency is improved by engaging and positioning.
This improves the assembly consistency between the motor body and the gearbox, facilitates automated production and transportation, and reduces assembly costs.
Smart Images

Figure CN224473147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive micro motor assembly, and more particularly to process fixing assembly, specifically a gearbox process fixing structure for automotive micro motors. Background Technology
[0002] The gearbox assembly technology for drive motors is one of the key core technologies in fields such as new energy vehicles, industrial automation, and robotics. Its assembly quality directly affects transmission efficiency, noise, lifespan, and reliability.
[0003] Currently, the industry commonly uses high-strength bolts with anti-loosening technology (such as Loctite adhesive and thread pre-coating), which requires precise control of the preload (torque-angle method), or hot fitting (heated gearbox) or cold fitting (cooled shaft), relying on high-precision temperature control to achieve interference fit. This method is more expensive but does not require additional fasteners. In addition, there are auxiliary axial fixation methods, which combine laser alignment technology to ensure concentricity, i.e., using pins / keyways for positioning.
[0004] The drawback of existing technologies is that they cannot effectively simplify assembly processes or reduce process costs, leaving room for optimization to some extent. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a gearbox process fixing structure for automotive micro motors.
[0006] To achieve the above objectives, the specific details of the gearbox fixing structure for automotive micro motors according to this utility model are as follows:
[0007] The main feature of this gearbox fixing structure for automotive micro motors is that the fixing structure is set on the gearbox and includes a first positioning structure and a second positioning structure. The first positioning structure is set on the top of the gearbox, and the second positioning structure is set at the motor body mounting port.
[0008] Preferably, the first positioning structure is a symmetrical groove.
[0009] Preferably, the symmetrical groove includes a concave portion located in the middle, protrusions extending along both sides of the concave portion, and extensions extending along both sides of the protrusions.
[0010] Preferably, the protrusion and the extension are arranged perpendicularly.
[0011] Preferably, the extension is disposed on both sides of the top of the gearbox, so that the first positioning structure is fixed to the top of the gearbox.
[0012] Preferably, the second positioning structure is an open structure.
[0013] Preferably, the opening structure includes an opening portion for achieving engagement and positioning.
[0014] Preferably, the opening is located at the top of the second positioning structure and at an outer portion perpendicular to the top of the second positioning structure.
[0015] The gearbox process fixing structure for automotive micro motors of this utility model, after the gearbox is engaged and positioned by the first positioning structure and the second positioning structure, can effectively improve the assembly consistency of the motor body and the gearbox, facilitate the fixing and transportation of materials in automated production, provide good positioning and support for automotive micro motor assembly, thereby improving assembly consistency. The addition of a separate positioning structure and the strengthening of the treatment can effectively avoid potential damage to functional areas, and has significant application value. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the gearbox process fixing structure for automotive micro motors according to this utility model.
[0017] Figure 2 This is a top view of the gearbox process fixing structure for automotive micro motors according to this utility model.
[0018] Figure 3 This is a detailed view of the first positioning structure of the gearbox process fixing structure for automotive micro motors according to this utility model.
[0019] Figure 4 This is a detailed view of the second positioning structure of the gearbox process fixing structure for automotive micro motors according to this utility model.
[0020] Figure 5 This is a schematic diagram of the first assembly effect of the gearbox process fixing structure for automotive micro motors according to this utility model.
[0021] Figure 6 This is a schematic diagram of the second assembly effect of the gearbox process fixing structure for automotive micro motors according to this utility model.
[0022] Figure 7 This is a schematic diagram of the third assembly effect of the gearbox process fixing structure for automotive micro motors according to this utility model.
[0023] Figure Labels
[0024] 1 Gearbox
[0025] 2 First positioning structure
[0026] 2-1 Concave portion
[0027] 2-2 Protrusion
[0028] 2-3 extension
[0029] 3 Second positioning structure
[0030] 3-1 Opening
[0031] 4 motor body Detailed Implementation
[0032] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.
[0033] Before describing the embodiments according to the present invention in detail, it should be noted that, in the following, the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0034] Please see Figures 1 to 4 As shown, the present invention relates to a gearbox process fixing structure for automotive micro motors. The fixing structure is mounted on the gearbox 1 and includes a first positioning structure 2 and a second positioning structure 3. The first positioning structure 2 is located on the top of the gearbox 1, and the second positioning structure 3 is located at the motor body mounting port.
[0035] In a preferred embodiment of the present invention, the first positioning structure 2 is a symmetrical groove.
[0036] In a preferred embodiment of the present invention, the symmetrical groove includes a concave portion 2-1 located in the middle, a protruding portion 2-2 protruding along both sides of the concave portion 2-1, and an extension portion 2-3 extending along both sides of the protruding portion 2-2.
[0037] In a preferred embodiment of the present invention, the protrusion 2-2 and the extension 2-3 are arranged perpendicularly.
[0038] In a preferred embodiment of the present invention, the extension portion 2-3 is disposed on both sides of the top of the gearbox 1, so that the first positioning structure 2 is fixed to the top of the gearbox 1.
[0039] In a preferred embodiment of the present invention, the second positioning structure 3 is an open structure.
[0040] In a preferred embodiment of the present invention, the opening structure includes an opening portion 3-1, which is used to achieve locking and positioning.
[0041] In a preferred embodiment of the present invention, the opening 3-1 is provided on the top of the second positioning structure 3 and on the outer side perpendicular to the top of the second positioning structure 3.
[0042] like Figures 5 to 7 As shown, in practical applications, the first positioning structure 2 is used to position the top of the gearbox 1, and the second positioning structure 3 is used to position the opening of the gearbox 1 (i.e., the mounting opening of the motor body). After the gearbox 1 is positioned by the first positioning structure 2 and the second positioning structure 3, the consistency of the assembly of the motor body 4 and the gearbox 1 can be effectively improved.
[0043] The gearbox process fixing structure for automotive micro motors of this utility model, after the gearbox is engaged and positioned by the first positioning structure and the second positioning structure, can effectively improve the assembly consistency of the motor body and the gearbox, facilitate the fixing and transportation of materials in automated production, provide good positioning and support for automotive micro motor assembly, thereby improving assembly consistency. The addition of a separate positioning structure and the strengthening of the treatment can effectively avoid potential damage to functional areas, and has significant application value.
[0044] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.
Claims
1. A gearbox process fixing structure for automotive micro motors, characterized in that, The fixing structure is set on the gearbox (1) and includes a first positioning structure (2) and a second positioning structure (3). The first positioning structure (2) is set on the top of the gearbox (1) and the second positioning structure (3) is set at the motor body mounting port. The first positioning structure (2) is a symmetrical groove; The second positioning structure (3) is an open structure, which includes an opening (3-1) for locking and positioning.
2. The gearbox process fixing structure for automotive micro motors according to claim 1, characterized in that, The symmetrical groove includes a concave portion (2-1) located in the middle, a protruding portion (2-2) protruding from both sides of the concave portion (2-1), and an extension portion (2-3) extending from both sides of the protruding portion (2-2).
3. The gearbox process fixing structure for automotive micro motors according to claim 2, characterized in that, The protrusion (2-2) and the extension (2-3) are arranged perpendicularly.
4. The gearbox process fixing structure for automotive micro motors according to claim 2, characterized in that, The extensions (2-3) are integrally disposed on both sides of the top of the gearbox (1), so that the first positioning structure (2) is integrally fixed on the top of the gearbox (1).
5. The gearbox process fixing structure for automotive micro-motors according to claim 1, characterized in that, The opening (3-1) is provided on the top of the second positioning structure (3) and on the outer side perpendicular to the top of the second positioning structure (3).