Stator assembly structure of aluminum wire winding

Abstract

The utility model discloses a stator assembly structure of an aluminum wire winding, which comprises a stator winding, and an injection molding protective cover used for protecting an aluminum wire covers the outer side of the stator winding. Compared with the prior art, the added injection molding protective cover can protect the aluminum wire. The aluminum wire is prevented from being damaged in the injection molding process, and the performance and normal operation of the motor can be effectively ensured.

Description

Technical Field

[0001] The utility model relates to a stator component structure of an aluminum wire winding. Background Art

[0002] Currently, most motors use copper enameled wire (copper wire for short) as their windings. With the rapid rise in copper prices, the cost of motors is also increasing. Therefore, the use of aluminum enameled wire (aluminum wire) to replace copper wire has gradually become a trend in motor development.

[0003] Existing technology, such as the Chinese utility model patent with publication number CN216625481 U, discloses an aluminum wire motor comprising a motor housing and a stator assembly disposed within the motor housing, as well as crimping terminals and a plastic encapsulation molded onto the surface of the stator assembly. The crimping terminals include a first end encapsulated within the plastic encapsulation and a second end exposed outside the plastic encapsulation. The stator assembly's lead wires are encapsulated within the plastic encapsulation and electrically connected to the first end, while the second end is electrically connected to a power cord. The lead wires are aluminum wires. This aluminum wire motor uses aluminum wire to form the coil windings of the stator assembly, with the crimping terminals serving as the intermediate connection between the aluminum wire and the power cord. The plastic encapsulation is used to injection-mold the aluminum wire and a portion of the crimping terminals. This provides a good and reliable sealing environment for the aluminum wire while ensuring electrical connection between the aluminum wire and the power cord, thereby extending the service life of the entire aluminum wire motor, including the aluminum wire.

[0004] Based on the above, existing technologies address the issue of aluminum wire sealing and protection by placing the wound stator windings into a mold for injection molding, where they are protected by a plastic shell. However, due to the relative fragility of aluminum wire, it is easily damaged by contact with the high-pressure injection molding liquid during the injection molding process. Damage to the aluminum wire can affect the performance and normal operation of the motor, requiring further improvement. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention proposes a stator assembly structure of an aluminum wire winding.

[0006] A stator assembly structure of an aluminum wire winding designed for this purpose includes a stator winding. The outer cover of the stator winding is provided with an injection-molded protective cover for protecting the aluminum wire.

[0007] Preferably, the injection-molded protective cover includes upper and lower protective cover bodies respectively covering the stator winding.

[0008] Preferably, the protective cover body is provided with a plurality of positioning notches arranged along its circumference, and the stator winding is provided with positioning ribs corresponding to the positioning notches arranged along the circumference, and the positioning ribs are inserted into the positioning notches.

[0009] Preferably, the stator winding is provided with a plurality of winding slots arranged along its circumference, and the protective cover body is provided with positioning ribs corresponding to the winding slots arranged along the circumference, and the positioning ribs are inserted into the winding slots.

[0010] Preferably, a circuit board recess is provided on the protective cover.

[0011] Preferably, the stator winding comprises a core body, and a winding frame is sleeved on the core body.

[0012] Compared to the prior art, the present invention includes a stator winding with an injection-molded protective cover on the outside of the stator winding to protect the aluminum wire. Compared to the prior art, the added injection-molded protective cover protects the aluminum wire, preventing damage to the aluminum wire during the injection molding process and effectively ensuring the motor's performance and normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is one of the three-dimensional structural diagrams of the present utility model;

[0014] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 3 This is one of the schematic diagrams of the decomposition structure of the utility model;

[0016] Figure 4 This is one of the cross-sectional structural diagrams of the present utility model;

[0017] Figure 5 This is the second schematic diagram of the cross-sectional structure of the present utility model;

[0018] Figure 6 This is the second schematic diagram of the decomposition structure of the present utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] See also Figures 1-6 A stator assembly structure of an aluminum wire winding includes a stator winding 10, and an injection-molded protective cover 20 is provided on the outer side of the stator winding 10 for protecting the aluminum wire.

[0021] After the stator winding 10 is wound, the injection-molded protective cover 20 is mounted on the stator winding 10 , and then the stator winding 10 with the injection-molded protective cover 20 is placed into an injection mold for injection molding to perform plastic sealing.

[0022] Based on the above, compared with the prior art, the added injection molding protective cover can protect the aluminum wire to avoid damage to the aluminum wire during the injection molding process, which can effectively ensure the performance and normal operation of the motor.

[0023] See also Figure 3 The injection molded protective cover 20 includes a protective cover body 210 that is respectively covered on the stator winding 10 at the upper and lower parts.

[0024] See also Figures 3 to 5 The protective cover body 210 is provided with a plurality of positioning notches 220 arranged along its circumference. The stator winding 10 is provided with positioning ribs 100 arranged along its circumference corresponding to the positioning notches 220. The positioning ribs 100 are inserted into the positioning notches 220. During assembly, the stator winding 10 and the protective cover body 210 are longitudinally inserted. During the plug-in assembly process, the positioning ribs 100 are inserted into the positioning notches 220. The plug-in connection between the two can constrain the assembly position of the two and prevent misalignment. Furthermore, the plug-in connection between the two adopts an interference fit, which can firmly connect the two together.

[0025] See also Figures 3 to 5 The stator winding 10 is provided with a plurality of winding slots 120 arranged along its circumference. The protective cover body 210 is provided with positioning ribs 230 arranged along its circumference corresponding to the winding slots 120. The positioning ribs 230 are inserted into the winding slots 120. During assembly, the stator winding 10 and the protective cover body 210 are longitudinally inserted. During the plug-in assembly process, the positioning ribs 230 are inserted into the winding slots 120. The insertion of the two can constrain the assembly position of the two and prevent misalignment. Furthermore, the two are inserted using an interference fit, which can firmly connect them together.

[0026] See also Figure 3 The protective cover body 210 is provided with a circuit board making way slot 240. The function of the circuit board making way slot 240 is to install a circuit board in the circuit board making way slot 240, and the circuit board is fixed to the stator winding 10.

[0027] See also Figure 6 The stator winding 10 comprises a core 101, on which a winding frame 102 is mounted. During production, the winding frame 102 is injection molded onto the core 101, and then aluminum wire is wound around the surface of the winding frame 102. After winding, the stator assembly 10 is plugged into the protective cover 210 for assembly and then encapsulation.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A stator assembly structure of an aluminum wire winding, comprising a stator winding (10), characterized in that: The outer cover of the stator winding (10) is provided with an injection-molded protective cover (20) for protecting the aluminum wire; The injection-molded protective cover (20) comprises upper and lower protective cover bodies (210) respectively covering the stator winding (10).

2. The stator assembly structure of the aluminum wire winding according to claim 1, characterized in that: The protective cover body (210) is provided with a plurality of positioning notches (220) arranged along its circumference, and the stator winding (10) is provided with positioning ribs (100) corresponding to the positioning notches (220) arranged along its circumference, and the positioning ribs (100) are inserted into the positioning notches (220).

3. The stator assembly structure of the aluminum wire winding according to claim 2, characterized in that: The stator winding (10) is provided with a plurality of winding slots (120) arranged along its circumference, and the protective cover body (210) is provided with positioning ribs (230) corresponding to the winding slots (120) arranged along its circumference, and the positioning ribs (230) are inserted into the winding slots (120).

4. A stator assembly structure of an aluminum wire winding according to any one of claims 1 to 3, characterized in that: The protective cover body (210) is provided with a circuit board clearance groove (240).

5. The stator assembly structure of an aluminum wire winding according to any one of claims 1 to 3, characterized in that: The stator winding (10) comprises a core (101), and a winding frame (102) is sleeved on the core (101).

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