Aluminum wire motor

Abstract

The invention discloses an aluminum wire motor which at least comprises a stator assembly and a rotor assembly which rotate relatively, the rotor assembly is connected with a rotating shaft, the stator assembly comprises a stator winding, and the outer side of the stator winding is covered with an injection molding protective cover used for protecting an aluminum wire. 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 invention relates to an aluminum wire motor. Background Art

[0002] At present, most motors use copper enameled wire (referred to as copper wire) as motor windings. With the rapid increase in copper prices, the cost of motors is also getting higher and higher. Therefore, the use of aluminum enameled wire (referred to as aluminum wire) to replace copper wire has gradually become a trend in the development of motors.

[0003] Existing technologies such as Chinese invention patents, with announcement number CN216625481 U, disclose an aluminum wire motor, including a motor housing and a stator assembly arranged in the motor housing, and also including a crimping terminal and a plastic shell injection-molded on the surface of the stator assembly; the crimping terminal includes a first end plastic-sealed in the plastic shell and a second end exposed outside the plastic shell; the lead wire of the stator assembly is plastic-sealed in the plastic shell and electrically connected to the first end, and the second end is used to electrically connect to the power line; the lead wire is an aluminum wire. The aluminum wire motor uses aluminum wire to form the coil winding of the stator assembly, uses the crimping terminal as the intermediate connection medium between the aluminum wire and the power line, and uses the plastic shell to injection-mold and seal the aluminum wire and part of the crimping terminal, providing a good and reliable sealing environment for the aluminum wire on the premise of achieving conduction between the aluminum wire and the power line, thereby extending the service life of the entire aluminum wire motor including the aluminum wire.

[0004] Based on the above, the prior art solves the problem of aluminum wire sealing and protection by placing the wound stator winding into a mold for injection molding so that the stator winding is protected by a plastic shell. However, since the aluminum wire is relatively fragile, it is easy to be damaged by contact with the high-pressure injection plastic during the injection molding process. When the aluminum wire is damaged, it will affect the performance and normal operation of the motor, which needs further improvement. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an aluminum wire motor that can protect aluminum wires.

[0006] An aluminum wire motor designed for this purpose comprises at least a stator assembly and a rotor assembly that rotate relative to each other, wherein the rotor assembly is connected to a rotating shaft, and the stator assembly comprises a stator winding, wherein an injection molded protective cover is provided on the outer side of the stator winding for protecting the aluminum wire.

[0007] Preferably, the injection molded protective cover comprises 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 grooves arranged along its circumference, and the protective cover body is provided with positioning ribs corresponding to the winding grooves arranged along the circumference, and the positioning ribs are inserted into the winding grooves.

[0010] Preferably, a circuit board clearance groove is provided on the protective cover body.

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

[0012] Compared with the prior art, the present invention has an injection-molded protective cover for protecting the aluminum wire on the outer cover of the stator winding. Compared with the prior art, the added injection-molded 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention;

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

[0015] Figure 3 It is one of the schematic diagrams of the decomposition structure of the present invention;

[0016] Figure 4 It is one of the cross-sectional structure schematic diagrams of the present invention;

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

[0018] Figure 6 This is the second schematic diagram of the decomposition structure of the present invention;

[0019] Figure 7 It is a schematic diagram of the three-dimensional structure of the motor. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-Figure 7 An aluminum wire motor comprises at least a stator assembly 30 and a rotor assembly 40 which rotate relative to each other, wherein the rotor assembly 40 is connected to a rotating shaft 50, and the stator assembly 30 comprises a stator winding 10, wherein an injection molded protective cover 20 is provided on the outer side of the stator winding 10 for protecting the aluminum wire.

[0022] After the stator winding 10 is wound, the injection-molded protective cover 20 is installed on the stator winding 10 , and then the stator winding 10 carrying the injection-molded protective cover 20 is placed in an injection mold for injection molding to perform plastic sealing.

[0023] 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.

[0024] See also Figure 3 The injection molded protective cover 20 includes a protective cover body 210 which is respectively covered on the stator winding 10 from top to bottom.

[0025] See also Figures 3 to 5 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. During assembly, the stator winding 10 and the protective cover body 210 are longitudinally inserted, and during the plug-in assembly process, the positioning ribs 100 are inserted into the positioning notches 220, and the plug-in of the two can constrain the position of the two to be assembled with each other to avoid misalignment. Furthermore, the plug-in of the two adopts an interference fit, which can firmly connect the two together.

[0026] See also Figures 3 to 5 The stator winding 10 is provided with a plurality of winding grooves 120 arranged along its circumference, and the protective cover body 210 is provided with positioning ribs 230 corresponding to the winding grooves 120 arranged along its circumference, and the positioning ribs 230 are plugged into the winding grooves 120. During assembly, the stator winding 10 and the protective cover body 210 are longitudinally plugged in. During the plug-in assembly process, the positioning ribs 230 are plugged into the winding grooves 120. The plug-in of the two can constrain the position of the two to be assembled with each other to avoid misalignment. Furthermore, the plug-in of the two adopts an interference fit, which can firmly connect the two together.

[0027] See also Figure 3 The protective cover body 210 is provided with a circuit board clearance groove 240. The function of the circuit board clearance groove 240 is that a circuit board is installed in the circuit board clearance groove 240, and the circuit board is fixed to the stator winding 10.

[0028] See also Figure 6 The stator winding 10 includes a core 101, and a winding frame 102 is sleeved on the core 101. During production, the winding frame 102 is plastic-sealed on the core 101 by injection molding, and then aluminum wire is wound on the surface of the winding frame 102. After the winding is completed, the stator assembly 10 is plugged and assembled with the protective cover body 210, and then plastic-sealed.

[0029] The above shows and describes the basic principles and main features of the present invention and the 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 only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An aluminum wire motor, comprising at least a stator assembly (30) and a rotor assembly (40) that rotate relative to each other, wherein the rotor assembly (40) is connected to a rotating shaft (50), and the stator assembly (30) comprises a stator winding (10), characterized in that: The outer side cover of the stator winding (10) is provided with an injection-molded protective cover (20) for protecting the aluminum wire.

2. The aluminum wire motor according to claim 1, characterized in that: The injection-molded protective cover (20) comprises protective cover bodies (210) which are respectively arranged at the top and the bottom to cover the stator winding (10).

3. The aluminum wire motor according to claim 2, 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 convex ribs (100) corresponding to the positioning notches (220) arranged along its circumference, and the positioning convex ribs (100) are inserted into the positioning notches (220).

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

5. An aluminum wire motor according to any one of claims 2 to 4, characterized in that: The protective cover body (210) is provided with a circuit board clearance groove (240).

6. An aluminum wire motor according to any one of claims 1 to 4, 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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