CN210578188U

CN210578188U - Plastic package stator and motor

Info

Publication number: CN210578188U
Application number: CN201921498067.7U
Authority: CN
Inventors: 林泳君; 伍光祥; 漆凌君; 陈东锁
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-19
Anticipated expiration: 2029-09-09

Abstract

The utility model provides a plastic envelope stator and motor relates to motor technical field, and the PG board of having solved current PG motor is at final assembly link pressure equipment, the complicated technical problem of assembly process. The plastic package stator comprises a PG component and a stator component, wherein the PG component and the stator component are integrally injection-molded. Compared with the process of press mounting of the PG plate of the conventional PG motor in the final assembly link, the PG assembly does not need to be pressed in the final assembly process, the total assembly parts are reduced, the final assembly process is simplified, full-automatic final assembly production can be realized, the production efficiency is improved, and the product quality consistency is improved.

Description

Plastic package stator and motor

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to a plastic envelope stator and motor are related to.

Background

The PG motor is a motor with Hall element, its speed regulation principle is to receive the magnetic signal of the magnetic ring on the rotor by the Hall element and output the corresponding pulse signal to the terminal control panel, then regulate the working voltage to the PG motor by regulating the conduction angle of the controlled silicon to carry on the automatic control of the rotational speed.

The applicant has found that the prior art has at least the following technical problems:

the fixing mode of the PG component of the traditional plastic package PG motor is that a PG plate is placed at an inner circle step of a plastic package stator of the motor and is riveted and fixed by an end cover, and the PG component is shown in figure 1. At present, the PG plate 41' of the plastic packaging motor general structure is installed in a final assembly link, and is pressed and assembled by an operator operating a machine. The PG line 42 'needs to be led out from the PG groove 43', the process is complex, and the PG assembly is easy to offset and is crushed by the end cover, so that the automatic capping of the assembly is difficult to realize, manual matching is still needed for riveting, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastic envelope stator and motor to the PG board of the current PG motor that exists among the solution prior art is at the final assembly link pressure equipment, the complicated technical problem of assembly process. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of plastic envelope stator, including PG subassembly and stator module, the PG subassembly with the integrative injection moulding of stator module.

Optionally, the stator assembly comprises a wound stator and an electric power terminal board, and the PG assembly is arranged separately from the electric power terminal board.

Optionally, the PG component comprises a PG plate and a PG line, and the PG plate is provided with a positioning hole.

Optionally, the PG component further comprises a PG auxiliary spacer, and the PG auxiliary spacer is fixed to the PG plate.

Optionally, the PG auxiliary spacers are ring-shaped structures, and the inner rings of the PG auxiliary spacers are circular arcs and have cutting corners.

Optionally, the PG plate and the electric power wiring plate are located on different planes.

Optionally, the PG board is provided with a plurality of positioning holes.

Optionally, the PG plate and the wound stator are isolated and positioned by a molding compound.

Optionally, the PG component and the stator component are integrally formed by injection molding of a BMC molding compound.

The utility model provides a pair of motor, including above arbitrary plastic envelope stator.

The utility model provides a plastic package stator and a motor, the plastic package stator comprises a PG component and a stator component, and the PG component and the stator component are integrally molded by injection; compared with the process of press mounting of the PG plate of the conventional PG motor in the final assembly link, the PG assembly does not need to be pressed in the final assembly process, the total assembly parts are reduced, the final assembly process is simplified, full-automatic final assembly production can be realized, the production efficiency is improved, and the product quality consistency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a structure of a plastic package motor in the prior art;

FIG. 1', end caps; 2', a rotor assembly; 3', a magnetic ring; 41', PG plate; 42', PG line; 43', PG groove; 5', plastic packaging the stator; 6', a strong electric wire;

fig. 2 is a schematic perspective view of a plastic package stator according to an embodiment of the present invention;

FIG. 3 is a schematic view of the connection relationship between the stator assembly and the PG assembly according to the present invention;

FIG. 4 is a schematic view of a partial enlarged structure of the PG plate and the PG auxiliary spacers in FIG. 3;

FIG. 5 is a schematic elevation view of the structure of FIG. 3;

FIG. 6 is a schematic cross-sectional view of the plastic stator of the present invention;

FIG. 7 is a partially enlarged schematic view of portion I of FIG. 6;

fig. 8 is a schematic cross-sectional structural view of a PG motor according to an embodiment of the present invention.

FIG. 1, PG component; 11. a PG plate; 111. positioning holes; 12. a PG line; 13. PG auxiliary locating plates; 2. a wound stator; 21. a stator core positioning surface; 31. a strong current wiring board I; 32. a strong current wiring board II; 4. a power line; 5. a six-hole outgoing line sheath; 6. an upper mold core; 61. a concave thimble; 7. b B a cover; 8. plastic packaging material; 9. a lower mold core; 91. a convex thimble; 100. plastic packaging the stator; 200. a rotor assembly; 300. a front end cover; 400. a front damping ring; 500. and a rear damping ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a plastic envelope stator 100, including PG subassembly 1 and stator module, PG subassembly 1 and the integrative injection moulding of stator module.

After the PG assembly 1 and the stator assembly are integrally injection molded, compared with the process of press mounting of a PG plate of the conventional PG motor in a final assembly link, the PG assembly 1 does not need to be press mounted in the final assembly process, the total assembly parts are reduced, the final assembly process is simplified, full-automatic final assembly production can be realized, the production efficiency is improved, and the product quality consistency is improved.

As an alternative embodiment, as shown in fig. 3 and 5, the stator assembly 2 includes a wound stator 21 and an electric power terminal board, and the PG assembly 1 is provided separately from the electric power terminal board.

When the traditional integrated design is adopted, the PG plate and the strong current wiring board are welded on a winding stator, and under the conditions of certain size of a mold core and certain theoretical installation position of a magnetic ring, once the iron core stacking thickness is changed (the iron core stacking thickness is not suitable for injection molding of the mold core), the induction positions of the Hall plate and the magnetic ring are changed, and the problem of unsuccessful injection molding is the most intuitive problem. And the utility model discloses the split type design of forceful electric power wiring board on PG subassembly 1 and stator module 2, the purpose of 1 strong, the weak current components of a whole that can function independently design of PG subassembly is moulded plastics in order to realize the different integrative of overlapping thick motor stator's built-in PG subassembly 1. PG subassembly 1 is moulded plastics by injection mold's last mould core 6 and lower mould core 9 location, and PG subassembly 1 location does not receive the influence that the iron core folded the height, and the location is accurate, realizes that a mould can mould plastics multiple iron core and fold high scheme product, improves the mould commonality, has reduced the input cost of mould.

As an alternative embodiment, the PG component 1 includes a PG plate 11 and PG lines 12, and a positioning hole 111 is opened on the PG plate 11. See fig. 3.

The PG plate 11 is provided with a positioning hole 111, and is connected with the mold positioning thimble through the positioning hole 111 in a matching manner, as shown in fig. 7, so that the injection molding positioning function is realized during injection molding.

The number and arrangement of the positioning holes 111 are consistent with those of the injection mold core and the mold cavity ejector pins.

As an alternative embodiment, the PG member 1 further includes a PG auxiliary spacer 13, and the PG auxiliary spacer 13 is fixed to the PG plate 11.

The PG auxiliary positioning sheet 13 is used for positioning, and is convenient and quick.

As an alternative embodiment, as shown in fig. 4, the PG auxiliary spacers 13 have a ring structure, and the inner ring thereof has a circular arc shape and has cutting corners.

Before injection molding, the PG auxiliary positioning sheets 13 are fixed with the PG plate 11 into a whole, and the shape design of the arc and the cutting angle in the middle of the PG auxiliary positioning sheets 13 is consistent with that of an injection molding mold core. The cutting angle a is shown in fig. 4. The cutting angle a may take 45 degrees.

The arc and the cutting angle in the middle of the PG auxiliary positioning sheet 13 can ensure the distance position between the Hall element and the magnetic ring in theoretical installation, and can also enable staff to quickly find the positioning hole 111 when placing.

As an alternative embodiment, the PG plate 11 is located on a different plane from the electric power wiring plate.

The PG plate 11 and the strong current wiring plate 11 are positioned on different planes, so that a product with multiple iron core stacking heights can be formed by one set of injection mold.

As an alternative embodiment, the PG plate 11 has a plurality of positioning holes 111.

The positioning holes 111 facilitate reliable positioning of the PG plate 11 during injection molding.

As an alternative embodiment, the PG plate 11 and the wound stator 21 are separated and positioned by a molding compound.

The PG plate 11 is not fixed on the wound stator 21, and is designed in a split type with a strong current wiring board, so that a product with multiple iron core stacking heights can be formed by injection molding of the same injection mold.

As an optional implementation mode, the PG assembly and the stator assembly are integrally formed by adopting BMC (bulk molding compound) molding materials in an injection molding mode.

The product prepared by the BMC (bulk molding compound) plastic package material has good mechanical property, high dimensional stability, good surface smoothness, excellent water resistance, oil resistance and corrosion resistance, excellent heat resistance and excellent electrical property.

The utility model provides a pair of motor, including above arbitrary plastic envelope stator 100.

As shown in fig. 8, the plastic package motor includes a plastic package stator 100, a rotor assembly 200, a front damper ring 400, a rear damper ring 500, a front end cover 300, etc., the plastic package stator 100 is formed by integrally injection molding a stator assembly 200 and a BB cover 7 through a BMC plastic package material 8, the stator assembly 2 includes a winding stator 21, a power supply assembly (including an outgoing line sheath and a strong current 4), a PG assembly 1 (including a PG plate 11 and a PG line 12), a strong current wiring board i/ii, the PG plate 11 and the strong current connection split design, and the PG plate 11 is not fixed on the winding stator 21, see fig. 5. When in injection molding, the ejector pins designed on the mold cores of the injection mold are used for positioning injection molding, so that the same mold can be used for injection molding of products with various different iron core stack-up schemes, the universality of the injection mold is improved, and the mold input cost is reduced. Meanwhile, the PG component 1 does not need to be pressed and assembled in the final assembly, so that the final assembly parts are reduced, the final assembly process is simplified, the full-automatic final assembly production can be realized, the production efficiency is improved, and the product quality consistency is improved.

The PG plate 11 has a plurality of positioning holes 111. The upper mold core 6 and the lower mold core 9 of the injection mold are respectively provided with a plurality of concave thimbles 61 and convex thimbles 91 for positioning the PG plate 11. The production method of the plastic package stator 100 can be as follows: the stator assembly 2 is placed into the lower mold core 9 of the injection mold, the positioning holes 111 of the PG plate 11 are synchronously placed into the convex ejector pins 91 of the lower mold core 9, the BB cover 7 is placed, the mold is closed (the concave ejector pins 61 of the upper mold core 6 are aligned with the convex ejector pins 91 of the lower mold core 9 to complete the limiting of the PG plate 11), the BMC plastic package material 8 is injected, and the plastic package stator 100 is as shown in fig. 2.

It is also possible to design a PG auxiliary positioning plate 13, which is fixed with the PG plate 11 first and then positioned with the mold.

The utility model provides an injection mold, it is used for moulding plastics above arbitrary plastic envelope stator 100, including first mold core and second mold core, first mold core have with the arch of locating hole 111 looks adaptation, the second mold core have with the recess of protruding looks adaptation. The mold injection production process is shown in fig. 6.

The first mold core and the second mold core are aligned through the concave-convex structure.

In an alternative embodiment, the first mold core is a lower mold core 9, and the second mold core is an upper mold core 6.

The lower mold core 9 is provided with a convex thimble 91 matched with the positioning hole 111, and the upper mold core 6 is provided with a concave thimble 61, so that the alignment injection molding is convenient.

In an alternative embodiment, the protrusion is a thimble.

The protrusion is a thimble, so that the positioning and injection molding are convenient.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The plastic package stator is characterized by comprising a PG assembly and a stator assembly, wherein the PG assembly and the stator assembly are integrally injection-molded.

2. The plastic package stator according to claim 1, wherein the stator assembly comprises a wound stator and a high voltage power terminal board, and the PG assembly and the high voltage power terminal board are arranged in a split manner.

3. The plastic package stator according to claim 2, wherein the PG member comprises a PG plate and a PG wire, and the PG plate is provided with a positioning hole.

4. The plastic package stator of claim 3, wherein the PG assembly further comprises PG auxiliary spacers fixed to the PG plate.

5. The plastic package stator according to claim 4, wherein the PG auxiliary positioning plate is of an annular structure, and an inner ring of the PG auxiliary positioning plate is of a circular arc shape and has a cutting angle.

6. The plastic package stator according to claim 4, wherein the PG plate and the strong electric wiring board are located on different planes.

7. The plastic package stator according to claim 3, wherein the PG plate is provided with a plurality of positioning holes.

8. The plastic package stator according to claim 3, wherein the PG plate and the wound stator are isolated and positioned by a plastic package material.

9. The plastic package stator according to claim 1, wherein the PG component and the stator component are integrally injection molded by BMC molding compound.

10. An electrical machine comprising a plastic encapsulated stator according to any of claims 1-9.