Stator structure with high sealing performance

Abstract

The utility model relates to the technical field of stators. A stator structure with high sealing performance comprises a spliced circle type stator framework, a wire is wound on the stator framework, a stator shell is formed outside the stator framework in a plastic molding mode, the rear end of the stator shell is sealed, the front end of the stator shell is open, and a limiting check ring is integrally formed at the front end of the stator shell. According to the stator structure with the high sealing performance, the production cost can be reduced to a certain extent, the stator can be rapidly assembled, the strength of the stator structure is high, the use stability is good, the sealing effect is good, and oil can be prevented from entering a controller; the stator structure solves the technical problems that the stator structure in the prior art is mostly of a split structure during production, needs to be assembled physically by manpower, is high in manufacturing precision requirement and high in production cost, and cannot effectively guarantee the overall sealing performance and strength of the structure.

Description

Technical Field

[0001] The invention relates to the technical field of stators, and in particular to a stator structure with high sealing performance. Background Art

[0002] In modern society, cars have become one of the preferred means of transportation for the public. The automotive industry is developing rapidly. As the performance of automobiles is moving towards safer, more reliable, more stable, environmentally friendly and energy-saving directions, in order to ensure the stable operation of the automobile powertrain, it is necessary to equip a complete actuator. Therefore, various actuators with motors are widely used in automobile powertrains, including hydraulic actuators, gear selector actuators, brake assist, etc.

[0003] To ensure the cooling and lubrication of all engine components, an electronic oil pump is needed to provide power for the oil circulation. The electronic oil pump is powered by an internal motor to drive the impeller to drive the oil circulation to cool and lubricate related components. To ensure the normal operation of the motor, the oil circuit is usually designed to circulate inside the electronic oil pump to cool the motor. However, the oil will have a certain impact on the controller. Therefore, a reasonable design is needed to ensure that there is oil circulation in the motor cavity while having a good sealing effect on the controller cavity. The current stators are mostly split structures, and the installation steps are cumbersome and require high manufacturing precision to ensure the installation effect. The production cost is high and it consumes a lot of manpower for assembly. Therefore, there is a need for improvement. Summary of the invention

[0004] The present invention provides a stator structure with high sealing performance, which can reduce production costs to a certain extent, can quickly assemble a stator, has high stator structure strength, good use stability, good sealing effect, and can prevent oil from entering a controller; and solves the technical problems existing in the prior art that the stator structure is mostly a split structure during production, requires manpower to physically assemble, has high manufacturing precision requirements for the stator structure, has high production costs, and the sealing performance and strength of the overall structure cannot be effectively guaranteed.

[0005] The above technical problem of the present invention is solved by the following technical solution: a highly sealed stator structure, including a circular stator frame, winding wires on the stator frame, a stator shell molded outside the stator frame, the rear end of the stator shell is sealed, the front end is open, and the front end of the stator shell is integrally molded with a limiting retaining ring. During installation, the wires are first wound on the stator frame, and then the stator shell is molded outside the stator frame. The limiting retaining ring on the front side of the stator shell can fix and limit the stator frame. The stator shell can increase the strength of the stator and improve the overall stability on the one hand, and can eliminate the dimensional deviation generated in the process of stator circular splicing to a certain extent by using the injection molding process on the other hand.

[0006] Preferably, the front side of the stator housing is provided with an installation alignment slot recessed toward the rear side, and a shell is installed outside the stator housing. The installation alignment slot provided on the front side of the stator housing is used to facilitate accurate alignment and installation of the stator housing in the shell.

[0007] Preferably, the surface of the housing is integrally formed with a mounting protrusion that can be stuck in the mounting alignment slot on the front side of the stator housing. When installing, the stator is installed in its entirety in the housing, and the mounting protrusion on the housing is stuck in the mounting alignment slot of the stator housing. The sealing can be performed by gluing, which can effectively ensure the sealing of the controller and prevent oil from flowing into the inside of the controller.

[0008] Preferably, the surface of the housing is integrally formed with a mounting protrusion that can be stuck in the mounting alignment slot on the front side of the stator housing. When installing, the stator is installed in its entirety in the housing, and the mounting protrusion on the housing is stuck in the mounting alignment slot of the stator housing. The sealing can be performed by gluing, which can effectively ensure the sealing of the controller and prevent oil from flowing into the inside of the controller.

[0009] Preferably, a rotor shaft is provided at the center of the housing, and the rotor shaft extends into the rotor installation slot for matching. The rotor at the center of the housing can be matched and installed in the rotor installation slot for easy installation and positioning.

[0010] Preferably, the rear end of the stator housing is a mounting surface, and a pin mounting position is injection molded on the mounting surface. The pin mounting position is integrally injection molded on the mounting surface at the rear end of the stator housing to reduce the difficulty of installation.

[0011] Preferably, the mounting surface at the rear end of the stator housing is also injection molded with a stator lead-out position. The pin mounting position and the stator lead-out position on the mounting surface of the stator housing can realize fast and accurate wiring of the stator lead-out line.

[0012] Therefore, a highly sealed stator structure of the present invention has the following advantages: the injection molding process can be optimized to a certain extent to eliminate the dimensional deviation generated during the stator circle assembly process, reduce the production cost to a certain extent, and realize rapid assembly of the stator. The stator structure has high strength, good stability in use, and good sealing effect, which can prevent oil from entering the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of a stator structure with high sealing performance of the utility model.

[0014] Figure 2 yes Figure 1 Schematic diagram of the main structure.

[0015] Figure 3 yes Figure 1Schematic diagram of the main cross-sectional structure.

[0016] Figure 4 yes Figure 1 Rear view cross-sectional structural diagram of .

[0017] Figure 5 yes Figure 1 Schematic diagram of the left-side sectional structure.

[0018] In the figure, there are a stator frame 1, a stator housing 2, a limit ring 3, a pin mounting position 4, a stator lead-out position 5, an installation alignment slot 6, a housing 7, a mounting protrusion 8, a rotor shaft 9, a rotor mounting slot 10, and an angle sensor 11. DETAILED DESCRIPTION

[0019] The technical solution of the invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] Example:

[0021] like Figure 1 and 2 As shown in Figures 3, 4 and 5, a stator structure with high sealing performance includes a circular stator frame 1, on which wires are wound, and the stator frame 1 is plastic-molded with a stator shell 2, the rear end of the stator shell 2 is sealed, the rear end of the stator shell 2 is a mounting surface, the front end of the stator shell 2 is an open end, and the front end of the stator shell 2 is integrally formed with a limiting retaining ring 3.

[0022] Three pin mounting positions 4 are integrally injection-molded on the mounting surface at the rear end of the stator housing 2 , and stator lead-out positions 5 corresponding to the three pin mounting positions 4 are also integrally injection-molded on the mounting surface at the rear end of the stator housing 2 .

[0023] The front end of the stator housing 2 is provided with an installation alignment slot 6 which is recessed toward the rear side. A shell 7 is installed outside the stator housing 2 . An installation protrusion 8 which can be clamped in the installation alignment slot 6 is integrally formed inside the shell 7 .

[0024] A rotor shaft 9 is installed at the center of the housing 7 , and a rotor installation groove 10 corresponding to the rotor is opened at the center of the stator housing 2 , and an angle sensor 11 is installed in the rotor installation groove 10 .

[0025] During installation, the wire is first wound on the stator frame 1, and then the stator shell 2 is formed by plastic coating the stator frame 1. The stator shell 2 can increase the strength of the stator and improve the overall stability. On the other hand, the injection molding process can be used to eliminate the dimensional deviation generated during the stator rounding process to a certain extent.

[0026] Then the stator is installed as a whole in the shell 7. During installation, the installation protrusion 8 on the shell 7 is inserted into the installation alignment groove 6 of the stator housing 2. The gluing process can be used for sealing, which can effectively ensure the sealing of the controller and prevent oil from flowing into the inside of the controller.

[0027] The rotor at the center of the housing 7 can be mounted in the rotor mounting groove 10 , and the pin mounting position 4 and the stator lead-out position 5 on the mounting surface of the stator housing 7 can realize fast and accurate wiring of the stator lead-out wires.

Claims

1. A stator structure with high sealing performance, characterized in that: The invention comprises a circular stator frame, on which wires are wound, the stator frame is plastic-coated with a stator shell, the rear end of the stator shell is sealed and the front end is open, and a limiting retaining ring is integrally formed at the front end of the stator shell.

2. A stator structure with high sealing performance according to claim 1, characterized in that: The front side of the stator housing is provided with an installation alignment slot recessed toward the rear side, and a shell is installed outside the stator housing.

3. A stator structure with high sealing performance according to claim 2, characterized in that: The surface of the shell is integrally formed with a mounting protrusion that can be clamped in the mounting alignment groove on the front side of the stator housing.

4. A stator structure with high sealing performance according to claim 2, characterized in that: A rotor mounting groove is provided at the center of the stator housing, and an angle sensor is provided in the rotor mounting groove.

5. A stator structure with high sealing performance according to claim 3, characterized in that: A rotor shaft is arranged at the center of the shell, and the rotor shaft extends into the rotor installation groove for matching.

6. A stator structure with high sealing performance according to claim 1, characterized in that: The rear end of the stator housing is a mounting surface, and a pin mounting position is injection-molded on the mounting surface.

7. A stator structure with high sealing performance according to claim 6, characterized in that: A stator lead-out position is also injection-molded on the mounting surface at the rear end of the stator housing.

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