Brushless rotor plastic coating structure convenient for material cutting balance
By installing a plastic wrap layer on the air blade shell of the DC brushless motor rotor and using automatic cutting equipment to perform cutting and balance, the problem of feeding balance in the prior art relying on manual operation, and the automation and production efficiency improvement is achieved.
Patent Information
- Application Number
- CN202420849553.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The feeding balance of existing DC brushless motor rotors mainly relies on manual operation, is inefficient and cannot be automated.
A plastic plastic wrap layer is installed on the outer shell of the air blade, and a material cutting hole is performed on the plastic wrap layer and the iron shell through automatic cutting equipment to achieve material cutting balance.
Through the automated material cutting balance process, production efficiency is improved, and the material strength of the plastic-encapsulated layer meets the requirements.
Smart Images
Figure CN222674016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rotor plastic-wrapped structure which is convenient for cutting and balancing, and is mainly applied to a DC brushless motor for electric tools. Background Art
[0002] like Figure 1 As shown, an existing type of brushless DC motor rotor includes an iron shell 1, a magnet 2 and a rotating shaft 3 are arranged inside the iron shell 1, and a fan blade is arranged outside the iron shell. The adjacent magnet installation gap serves as an iron shell side feeding position 4, and multiple hollow places of the fan blade shell body serve as fan blade side feeding positions 5. In the conventional production process, feeding balance is mainly performed at these two positions, and manual operation is required throughout the process, so the efficiency is low and automation cannot be achieved. Utility Model Content
[0003] In view of the above problems, the utility model provides a rotor plastic coating structure which is convenient for cutting and balancing, is easy to realize automation, and improves production efficiency.
[0004] To this end, the utility model adopts the following technical solution: a brushless rotor plastic coating structure that is convenient for cutting balance, including an iron shell, a magnet and a rotating shaft are arranged inside the iron shell, and is characterized in that a fan blade is arranged at the outer end of the iron shell, and a plastic coating layer is arranged on the outer shell of the fan blade.
[0005] Preferably, the plastic coating layer covers the entire outer side wall of the wind blade body.
[0006] Preferably, the material of the plastic coating layer is PA66+30GF.
[0007] The utility model improves the rotor structure, adds plastic coating on the outer wall of the fan blade body, realizes automatic cutting and balancing by cooperating with cutting equipment, and the strength meets the requirements, thereby improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of the prior art.
[0009] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.
[0010] Figure 3 It is a side view of the utility model.
[0011] In the figure: 1. iron shell, 2. magnet, 3. rotating shaft, 4. feeding position on the iron shell side, 5. feeding position on the fan blade side, 6. plastic coating layer, 7. cutting point for the fan blade, 8. cutting point for the iron shell. DETAILED DESCRIPTION
[0012] The present invention is further described below in conjunction with specific embodiments.
[0013] like Figure 2 and Figure 3 The brushless rotor plastic coating structure shown is convenient for cutting balance, comprising an iron shell 1, a magnet 2 and a rotating shaft 3 are arranged inside the iron shell 1, a fan blade is arranged at the outer end of the iron shell 1, and a plastic coating layer 6 is arranged on the outer shell of the fan blade.
[0014] Specifically, the plastic coating layer covers the outer side wall of the entire fan blade body, and the material of the plastic coating layer 6 is PA66+30GF, which has high strength, rigidity and heat resistance.
[0015] During production, the automatic cutting equipment is used to cut and punch holes on the plastic coating and the iron shell to achieve a balanced cutting process. According to actual production needs, multiple cutting operations may be required at different locations. The figure only shows one location on the iron shell and the plastic coating. For the same batch of motors, the automatic cutting equipment can save the corresponding parameters after multiple proofings. In subsequent batches of production, the parameters of the automatic cutting equipment can generally be used for fully automatic processing.
[0016] The utility model improves the rotor structure, adds plastic coating on the outer wall of the fan blade body, realizes automatic cutting and balancing by cooperating with cutting equipment, and the strength meets the requirements, thereby improving the production efficiency.
[0017] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.
Claims
1. A brushless rotor plastic coating structure that facilitates material balancing, comprising an iron shell (1), a magnet (2) and a rotating shaft (3) arranged inside the iron shell (1), characterized in that A fan blade is arranged at the outer end of the iron shell (1), and a plastic coating layer (6) is arranged on the outer shell of the fan blade.
2. A brushless rotor plastic coating structure for facilitating cutting balance according to claim 1, characterized in that The plastic coating layer (6) covers the outer side wall of the entire fan blade body.
3. A brushless rotor plastic coating structure for facilitating cutting balance according to claim 1 or 2, characterized in that The material of the plastic coating layer (6) is PA66+30GF.