Motor and clothes processing equipment

Abstract

The utility model discloses a motor and clothes processing equipment, and relates to the technical field of clothes processing, the motor comprises a first driving shaft, a second driving shaft and a plastic coated stator; the second driving shaft and the first driving shaft are coaxially arranged, the plastic-coated stator comprises a first stator assembly, a second stator assembly and a supporting piece, the first stator assembly is arranged in the circumferential direction of the first driving shaft, the second stator assembly is arranged in the circumferential direction of the second driving shaft, and the supporting piece is positioned between the first stator assembly and the second stator assembly; and the supporting piece, the first stator assembly and the second stator assembly are integrated in a plastic coating manner. According to the utility model, the first stator assembly and the second stator assembly are consolidated and molded into one plastic-coated stator by adopting a plastic coating process, and the first driving shaft and the second driving shaft share one plastic-coated stator for assembly, so that the axial length of the motor is reduced, the size of the motor can be reduced, and the occupation of the internal space of the clothes processing equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing treatment, and particularly relates to a motor and a clothing treatment device. Background Art

[0002] The dryer has the characteristics of rapid drying and is widely used in household life and industrial production. The dryer includes a drum and a wind wheel. When the wind wheel rotates, hot air flow can be blown into the drum. The drum and the wind wheel of the traditional dryer are driven by the same motor. When the drum rotates in reverse, the air volume of the wind wheel weakens, affecting the drying efficiency. In response to this, some new dryers have emerged on the market. These dryers are internally configured with different motor devices to drive the rotation of the drum and the rotation of the wind wheel respectively. However, this kind of dryer simply assembles the existing two motors together, occupying a relatively large internal space and resulting in an increase in the overall volume of the dryer. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a motor that can reduce the occupation of the internal space of the clothing treatment device.

[0004] The utility model also provides a clothing treatment device with the above-mentioned motor.

[0005] The motor according to the first aspect embodiment of the utility model is applied to a clothing treatment device. The motor includes:

[0006] A first drive shaft;

[0007] A second drive shaft coaxially arranged with the first drive shaft; and

[0008] A plastic-coated stator, including a first stator component, a second stator component and a support member. The first stator component is arranged along the circumferential direction of the first drive shaft, the second stator component is arranged along the circumferential direction of the second drive shaft, and the support member is positioned between the first stator component and the second stator component to make the first stator component and the second stator component coaxial. The support member, the first stator component and the second stator component are plastic-coated into one body.

[0009] The motor according to the embodiment of the utility model has at least the following beneficial effects:

[0010] The first stator assembly and the first drive shaft form a first motor, and the second stator assembly and the second drive shaft form a second motor. By using a plastic coating process, the first stator assembly and the second stator assembly are consolidated into one body to form a plastic-coated stator, so that the first motor and the second motor share a plastic-coated stator and are assembled together, rather than directly assembling the two motors as in the related art. This reduces the connection structure between the first motor and the second motor, reduces the axial length of the motor, and can reduce the overall volume of the motor, thereby reducing the occupation of the internal space of the dryer.

[0011] Moreover, the plastic-coated stator of the present invention further includes a support member. The support member is positioned between the first stator assembly and the second stator assembly, and the support member is also consolidated with the first stator assembly and the second stator assembly into one body by using a plastic coating process. By positioning the first stator assembly and the second stator assembly through the support member, during the molding process of the plastic-coated stator, the positioning steps of the first stator assembly, the second stator assembly and the injection mold are simplified, the plastic coating process is accelerated, the production efficiency can be improved, and at the same time, the positioning structure on the injection mold is simplified, and the production cost can be reduced.

[0012] According to some embodiments of the present invention, the support member includes:

[0013] A first positioning portion is provided at one end of the support member close to the first stator assembly, and the first positioning portion is in positioning cooperation with the first stator assembly;

[0014] A second positioning portion is provided at one end of the support member close to the second stator assembly, and the second positioning portion is in positioning cooperation with the second stator assembly.

[0015] According to some embodiments of the present invention, the first stator assembly includes a first stator core, the first positioning portion includes a first positioning groove, and the first positioning portion is lapped on the outer peripheral edge of the first stator core through the first positioning groove;

[0016] The second stator assembly includes a second stator core, the second positioning portion includes a second positioning groove, and the second positioning portion is lapped on the outer peripheral edge of the second stator core through the second positioning groove.

[0017] According to some embodiments of the present invention, the outer peripheral edge of the first stator core includes a first end face and a first outer peripheral surface connected to the first end face. The first end face is disposed opposite to the second stator assembly. The first positioning groove includes a first groove wall and a second groove wall. The first groove wall is in abutting and positioning with the first end face, and the second groove wall is in abutting and positioning with the first outer peripheral surface;

[0018] The outer peripheral edge of the second stator core includes a second end face and a second outer peripheral face connected to the second end face. The second end face is disposed opposite to the first stator assembly. The second positioning groove includes a third groove wall and a fourth groove wall. The third groove wall is in abutting contact and positioning with the second end face, and the fourth groove wall is in abutting contact and positioning with the second outer peripheral face.

[0019] According to some embodiments of the present invention, the first positioning groove is disposed along the circumferential direction of the first stator core; and / or, the second positioning groove is disposed along the circumferential direction of the second stator core.

[0020] According to some embodiments of the present invention, the plastic-coated stator further includes a bearing seat, which is located between the first stator assembly and the second stator assembly. The bearing seat is used to support the first drive shaft and / or the second drive shaft through bearings, and the bearing seat is integrally plastic-coated with the first stator assembly, the second stator assembly and the support member.

[0021] According to some embodiments of the present invention, the bearing seat includes a seat body and a rib. The rib protrudes from the outer wall of the seat body and is disposed along the circumferential direction of the seat body.

[0022] According to some embodiments of the present invention, the plastic-coated stator further includes a bearing seat, which is located between the first stator assembly and the second stator assembly. The bearing seat is used to support the first drive shaft and / or the second drive shaft through bearings, and the bearing seat and the support member are of an integral structure.

[0023] According to some embodiments of the present invention, the plastic-coated stator includes a plastic-sealed housing, and the motor further includes:

[0024] A first end cover, which is disposed at one end of the plastic-sealed housing along its axial direction. The first end cover is used to support the first drive shaft through a bearing;

[0025] A second end cover, which is disposed at the other end of the plastic-sealed housing along its axial direction. The second end cover is used to support the second drive shaft through a bearing.

[0026] According to some embodiments of the present invention, the plastic-sealed housing is provided with a first receiving groove and a second receiving groove that face away from each other along its axial direction. The groove wall of the first receiving groove forms a first positioning surface, and the groove wall of the second receiving groove forms a second positioning surface;

[0027] The first end cover includes a first insertion portion, and the first insertion portion is inserted into the first receiving groove and is in positioning cooperation with the first positioning surface;

[0028] The second end cover includes a second insertion portion which is inserted into the second receiving groove and is in positioning cooperation with the second positioning surface.

[0029] According to some embodiments of the present invention, the first insertion portion is in interference fit with the first positioning surface; and / or, the second insertion portion is in interference fit with the second positioning surface.

[0030] According to some embodiments of the present invention, the laundry treatment device includes a drum and a wind wheel. The first drive shaft is used to connect with the wind wheel, and the second drive shaft is used to connect with the drum.

[0031] The plastic-coated stator includes a plastic-sealed outer shell and a support arm connected to the plastic-sealed outer shell. A connecting shaft is provided at one end of the support arm away from the plastic-sealed outer shell. The motor further includes a belt drive assembly which includes a first pulley, a second pulley, and a transmission belt wound around the first pulley and the second pulley. The first pulley is rotatably mounted on the connecting shaft and is connected to the drum, and the second pulley is connected to the second drive shaft.

[0032] According to some embodiments of the present invention, the plastic-sealed outer shell and the support arm are integrally formed by plastic coating.

[0033] The laundry treatment device according to the second aspect embodiments of the present invention includes a drum, a wind wheel, and the motor according to any one of the above embodiments. Among them, the first drive shaft is connected to the wind wheel, and the second drive shaft is connected to the drum.

[0034] The laundry treatment device according to the embodiments of the present invention has at least the following beneficial effects:

[0035] By adopting the motor of the first aspect embodiments, a first motor is formed by setting a first stator assembly and a first drive shaft, and a second motor is formed by a second stator assembly and a second drive shaft. By using the plastic coating process to consolidate the first stator assembly and the second stator assembly into one body to form a plastic-coated stator, the first motor and the second motor share one plastic-coated stator and are assembled together, instead of directly assembling the two motors as in the related art. The connection structure between the first motor and the second motor is reduced, the axial length of the motor is reduced, the overall volume of the motor can be reduced, and thus the occupation of the internal space of the dryer can be reduced.

[0036] Moreover, the plastic-coated stator of the present utility model further includes a support member, which is positioned between the first stator assembly and the second stator assembly. The support member is also integrally consolidated with the first stator assembly and the second stator assembly by using the plastic coating process. The first stator assembly and the second stator assembly are positioned by the support member. During the forming process of the plastic-coated stator, the positioning steps of the first stator assembly, the second stator assembly and the injection mold are simplified, the plastic coating process is accelerated, the production efficiency can be improved, and at the same time, the positioning structure on the injection mold is simplified, and the production cost can be reduced.

[0037] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present utility model will be further described below in conjunction with the drawings and embodiments, where:

[0039] Figure 1 is a cross-sectional view of the motor according to the embodiment of the present utility model;

[0040] Figure 2 is an exploded view of the motor according to the embodiment of the present utility model;

[0041] Figure 3 is a schematic structural view of the plastic-coated stator according to the embodiment of the present utility model;

[0042] Figure 4 is an exploded view of the plastic-coated stator according to the embodiment of the present utility model;

[0043] Figure 5 is a schematic positioning view of the support member, the first stator assembly and the second stator assembly according to the embodiment of the present utility model;

[0044] Figure 6 is Figure 5 a partial enlarged view at A in

[0045] Figure 7 is Figure 5 a partial enlarged view at B in

[0046] Figure 8 is a schematic structural view of the bearing seat according to the embodiment of the present utility model;

[0047] Figure 9 is a schematic structural view of the first end cover according to the embodiment of the present utility model;

[0048] Figure 10 is a schematic structural view of the second end cover according to the embodiment of the present utility model.

[0049] Reference Numerals in the Drawings:

[0050] Motor 10; Plastic-coated stator 100; Plastic-sealed housing 110; First receiving groove 111; First positioning surface 1111;

[0051] Second receiving groove 112; Second positioning surface 1121; Third connecting hole 113;

[0052] First stator assembly 120; First stator core 121; First end face 1211; First outer peripheral surface 1212;

[0053] Second stator assembly 130; Second stator core 131; Second end face 1311; Second outer peripheral surface 1312;

[0054] Support member 140; First positioning portion 141; First positioning groove 1411; First groove wall 1411a; Second groove wall 1411b;

[0055] Second positioning portion 142; Second positioning groove 1421; Third groove wall 1421a; Fourth groove wall 1421b;

[0056] Bearing housing 150; Housing body 151; First installation groove 1511; Second installation groove 1512; Rib 152; Support arm 160; Connecting shaft 170;

[0057] First rotor assembly 200; First shaft assembly 300; First drive shaft 310; First bearing 320; Second bearing 330;

[0058] Second rotor assembly 400; Second shaft assembly 500; Second drive shaft 510; Third bearing 520; Fourth bearing 530;

[0059] First end cover 600; First insertion portion 610; Third installation groove 620; First connecting hole 630;

[0060] Second end cover 700; Second insertion portion 710; Fourth installation groove 720; Second connecting hole 730;

[0061] Drive belt assembly 800; First pulley 810; Second pulley 820; Drive belt 830. Detailed implementation mode

[0062] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0063] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as up, down, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0064] In the description of the present utility model, "a plurality of" refers to more than two. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0065] In the description of the present utility model, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0066] This application provides a motor, which is mainly applied to clothing treatment equipment. Among them, the clothing treatment equipment may include, but is not limited to, electrical appliances such as washing machines, dryers, and washing and drying integrated machines. Hereinafter, the dryer will be mainly used as an example for detailed description.

[0067] When the clothing treatment equipment is a dryer, it includes a drum and a blower wheel. Among them, the blower wheel is arranged in the air duct system of the dryer, and the blower wheel is configured to rotate to provide the power to drive the air flow, so as to blow the heated hot air in the air duct system into the drum. The drum is used to accommodate the clothes to be dried, and the drum is configured to rotate to drive the clothes accommodated therein to continuously tumble, so that the hot air blown into the drum can fully contact each piece of clothing.

[0068] For some dryers, the drum and the blower wheel are driven by the same drive shaft, so the rotation directions of the blower wheel and the drum are always the same. When the drum rotates in reverse, the blower wheel also rotates in reverse. At this time, the air volume generated by the blower wheel is very weak, resulting in a reduction in the hot air flow entering the drum and affecting the drying efficiency of the dryer.

[0069] Please refer to Figure 1 , Figure 1 This is a cross-sectional view of the motor according to an embodiment of the present utility model. In the embodiment of this application, the motor 10 includes a first motor and a second motor. The first motor includes a first drive shaft 310, and the first drive shaft 310 is connected to the blower wheel of the dryer. The second motor includes a second drive shaft 510, and the second drive shaft 510 is connected to the drum of the dryer.

[0070] Specifically, during the operation of the dryer, the first drive shaft 310 of the first motor drives the wind wheel to rotate, and the second drive shaft 510 of the second motor drives the drum to rotate. That is, the drum and the wind wheel are driven by different drive shafts respectively, and the rotation of the drum and the rotation of the wind wheel are independent of each other. Then, when the second motor drives the drum to rotate in reverse, the wind wheel can still maintain the original rotation direction under the drive of the first motor, ensuring the air volume of the drum, so that the reverse rotation of the drum will not affect the flow of hot air entering the drum, thereby improving the drying efficiency of the dryer and reducing energy consumption. It has been verified that under the same clothing capacity, the drying time of the dryer using the motor 10 of the present application can be reduced by 15% - 30%.

[0071] Please refer to Figure 1 and refer to Figure 2 , Figure 2 is an exploded view of the motor according to an embodiment of the present invention. The first motor includes a first stator assembly 120, a first rotor assembly 200, and the above-mentioned first drive shaft 310. The first stator assembly 120 is sleeved outside the first rotor assembly 200, that is, the first stator assembly 120 is arranged around the first rotor assembly 200. The first drive shaft 310 passes through the first rotor assembly 200 and is fixedly connected to the first rotor assembly 200. Under the action of the magnetic field, the first rotor assembly 200 can be driven to rotate relative to the first stator assembly 120, and the first rotor assembly 200 drives the first drive shaft 310 to rotate, thereby driving the wind wheel to rotate.

[0072] The second motor includes a second stator assembly 130, a second rotor assembly 400, and the above-mentioned second drive shaft 510. The second stator assembly 130 is sleeved outside the second rotor assembly 400, that is, the second stator assembly 130 is arranged around the second rotor assembly 400. The second drive shaft 510 passes through the second rotor assembly 400 and is fixedly connected to the second rotor assembly 400. Under the action of the magnetic field, the second rotor assembly 400 can be driven to rotate relative to the second stator assembly 130, and the second rotor assembly 400 drives the second drive shaft 510 to rotate, thereby driving the drum to rotate.

[0073] To make the dryer work better, the first motor and the second motor are usually assembled into one body. In the related art, generally, two existing motors are directly connected. For example, the end cover of one motor is connected to the end cover of the other motor by screws. In this way, the assembled motor occupies more space, squeezing the installation space of other components in the dryer, resulting in an increase in the volume of the dryer.

[0074] To solve the above problems, please refer to Figure 1 , Figure 2 and refer to Figure 3 , Figure 3Schematic diagram of the plastic - encapsulated stator according to the embodiment of the present utility model. In the embodiment of the present application, the motor 10 includes a plastic - encapsulated stator 100. The plastic - encapsulated stator 100 is composed of a first stator assembly 120, a second stator assembly 130, and a plastic - sealed housing 110 covering the first stator assembly 120 and the second stator assembly 130. That is, in the embodiment of the present application, the first stator assembly 120 and the second stator assembly 130 are fixedly connected into a whole by the plastic - encapsulation process to form a plastic - encapsulated stator 100.

[0075] By forming the first stator assembly 120 and the second stator assembly 130 into a plastic - encapsulated stator by the plastic - encapsulation process, that is, the first motor and the second motor share a plastic - encapsulated stator 100, the components on the first motor and the components on the second motor can be connected by sharing a plastic - encapsulated stator 100, rather than assembling two complete motors together as in the related art. This reduces the structural parts between the first motor and the second motor, reduces the axial length of the motor 10, can reduce the overall volume of the motor 10, and thus reduces the occupation of the internal space of the dryer.

[0076] Among them, the first drive shaft 310 and the second drive shaft 510 are coaxially arranged. Correspondingly, the first stator assembly 120 and the second stator assembly 130 are coaxially arranged. To ensure the coaxiality of the first stator assembly 120 and the second stator assembly 130, the plastic - encapsulated stator 100 further includes a support member 140. The support member 140 is positioned between the first stator assembly 120 and the second stator assembly 130, and moreover, the support member 140 is also plastic - encapsulated with the first stator assembly 120 and the second stator assembly 130 into one body.

[0077] Specifically, in the production process of the plastic - encapsulated stator 100, first, the support member 140 is positioned between the first stator assembly 120 and the second stator assembly 130, then the whole of the support member 140, the first stator assembly 120, and the second stator assembly 130 in positioning cooperation is placed into an injection mold, and then injection liquid is filled in the injection mold. After the injection liquid solidifies and forms, the plastic - encapsulated stator 100 is obtained.

[0078] In the present utility model, by arranging the support member 140 between the first stator assembly 120 and the second stator assembly 130, the support member 140 is used to position the first stator assembly 120 and the second stator assembly 130, preventing the first stator assembly 120 and the second stator assembly 130 from shifting due to the force during the injection - molding process, and can ensure the coaxiality of the first stator assembly 120 and the second stator assembly 130. Moreover, precisely because the positioning of the first stator assembly 120 and the second stator assembly 130 is realized by the support member 140, the positioning steps between the two and the injection mold are simplified, the production efficiency can be improved, and at the same time, the positioning structure on the injection mold is simplified, and the production cost can be reduced.

[0079] In addition, the support member 140 can serve as the framework of the plastic-coated stator 100, enhancing the overall strength and stiffness of the plastic-coated stator 100, preventing the plastic-coated stator 100 from being easily deformed, and improving the reliability and stability of the rotation of the first drive shaft 310 and the second drive shaft 510.

[0080] Please continue to refer to Figure 3 , the support member 140 includes a first positioning portion 141 and a second positioning portion 142. The first positioning portion 141 is disposed at one end of the support member 140 close to the first stator assembly 120, and the first positioning portion 141 is in positioning cooperation with the first stator assembly 120. The second positioning portion 142 is disposed at one end of the support member 140 close to the second stator assembly 130, and the second positioning portion 142 is in positioning cooperation with the second stator assembly 130.

[0081] There are various positioning methods for the first positioning portion 141 and the second positioning portion 142. For example, the pin-hole positioning method can be adopted. The first positioning portion 141 and the second positioning portion 142 can be set as positioning pins, and corresponding positioning holes are provided on the first stator assembly 120 and the second stator assembly 130. The positioning pins are inserted into the positioning holes to achieve the positioning of the support member 140 with the first stator assembly 120 and the second stator assembly 130. Or, the surface-to-surface positioning method can also be adopted. Positioning surfaces can be provided on both the first positioning portion 141 and the second positioning portion 142, and corresponding mating surfaces are provided on the first stator assembly 120 and the second stator assembly 130. The positioning of the support member 140 with the first stator assembly 120 and the second stator assembly 130 is achieved through the contact and cooperation between the positioning surface and the mating surface.

[0082] Please combine Figure 3 and refer to Figure 4 and Figure 5 , Figure 4 is the exploded view of the plastic-coated stator according to the embodiment of the present invention, Figure 5 is the positioning schematic diagram of the support member with the first stator assembly and the second stator assembly according to the embodiment of the present invention. In one embodiment, the first stator assembly 120 includes a first stator core 121, the first positioning portion 141 includes a first positioning groove 1411, and the first positioning portion 141 is lapped on the outer periphery of the first stator core 121 through the first positioning groove 1411. The second stator assembly 130 includes a second stator core 131, the second positioning portion 142 includes a second positioning groove 1421, and the second positioning portion 142 is lapped on the outer periphery of the second stator core 131 through the second positioning groove 1421. Wherein, the shape of the first positioning groove 1411 is adapted to the contour shape of the outer periphery of the first stator core 121, and the shape of the second positioning groove 1421 is adapted to the contour shape of the outer periphery of the second stator core 131.

[0083] By providing the first positioning groove 1411, the first positioning portion 141 is lapped on the outer peripheral edge of the first stator core 121, facilitating the positioning operation between the two and improving the positioning efficiency of the support member 140 and the first stator assembly 120. Similarly, by providing the second positioning groove 1421, the second positioning portion 142 is lapped on the outer peripheral edge of the second stator core 131, also improving the positioning efficiency of the support member 140 and the second stator assembly 130. Thus, the support member 140 can be quickly and properly fitted with the first stator assembly 120 and the second stator assembly 130, improving the production efficiency of the plastic-coated stator 100.

[0084] Please refer to Figure 5 and Figure 6 and Figure 7 , Figure 6 which is Figure 5 a partial enlarged view of location A in Figure 7 and Figure 5 is a partial enlarged view of location B in . The outer peripheral edge of the first stator core 121 includes a first end face 1211 and a first outer peripheral face 1212 connected to the first end face 1211. The first end face 1211 faces the second stator assembly 130, that is, the first end face 1211 is the outer surface of the first stator core 121 along its axial direction, and the first outer peripheral face 1212 is the outer surface of the first stator core 121 along its circumferential direction. For easy lapping, the first positioning groove 1411 is provided as a stepped groove, which includes a first groove wall 1411a and a second groove wall 1411b. Among them, the first groove wall 1411a abuts against and positions with the first end face 1211, enabling the support member 140 to be positioned and fitted with the first stator core 121 in its axial direction; the second groove wall 1411b abuts against and positions with the first outer peripheral face 1212, enabling the support member 140 to be positioned and fitted with the first stator core 121 in its circumferential direction.

[0085] The outer peripheral edge of the second stator core 131 includes a second end face 1311 and a second outer peripheral face 1312 connected to the second end face 1311. The second end face 1311 faces the first stator assembly 120, that is, the second end face 1311 is the outer surface of the second stator core 131 along its axial direction, and the second outer peripheral face 1312 is the outer surface of the second stator core 131 along its circumferential direction. For easy lapping, the second positioning groove 1421 is also provided as a stepped groove, which includes a third groove wall 1421a and a fourth groove wall 1421b. Among them, the third groove wall 1421a abuts against and positions with the second end face 1311, enabling the support member 140 to be positioned and fitted with the second stator core 131 in its axial direction; the fourth groove wall 1421b abuts against and positions with the second outer peripheral face 1312, enabling the support member 140 to be positioned and fitted with the second stator core 131 in its circumferential direction.

[0086] Then, through the abutting and positioning of the first groove wall 1411a against the first end face 1211, and the abutting and positioning of the third groove wall 1421a against the second end face 1311, the support member 140 simultaneously achieves the axial positioning of the first stator assembly 120 and the second stator assembly 130, defining the axial positions of the first stator assembly 120 and the second stator assembly 130. Also, through the abutting and positioning of the second groove wall 1411b against the first outer peripheral surface 1212, and the abutting and positioning of the fourth groove wall 1421b against the second outer peripheral surface 1312, the support member 140 simultaneously achieves the circumferential positioning of the first stator assembly 120 and the second stator assembly 130, enabling the first stator assembly 120 and the second stator assembly 130 to be coaxial.

[0087] In one embodiment, as Figure 4 shown, the support member 140 is integrally constructed to be generally cylindrical, giving the support member 140 itself relatively high strength to prevent the support member 140 from being deformed under pressure during the injection molding process, so as to ensure the positioning accuracy of the support member 140 for the first stator assembly 120 and the second stator assembly 130.

[0088] In one embodiment, the first positioning groove 1411 is provided along the circumferential direction of the first stator core 121, such that the first positioning groove 1411 is designed as an annular groove. Then, there is a relatively large positioning area between the first positioning groove 1411 and the first stator core 121, which can improve the positioning accuracy of the first positioning portion 141 and the second stator assembly 130, while ensuring the stability of the positioning fit between the two, facilitating subsequent injection molding operations.

[0089] Similarly, the second positioning groove 1421 is provided along the circumferential direction of the second stator core 131, such that the second positioning groove 1421 is also designed as an annular groove, giving a relatively large positioning area between the second positioning groove 1421 and the second stator core 131, which can improve the positioning accuracy of the second positioning portion 142 and the second stator assembly 130, while ensuring the stability of the positioning fit between the two, and being beneficial to subsequent injection molding operations.

[0090] In one embodiment, both the first stator assembly 120 and the second stator assembly 130 are configured as circular ring stators. The first outer peripheral surface 1212 of the first stator core 121 is a cylindrical surface, and the second outer peripheral surface 1312 of the second stator core 131 is a cylindrical surface. Correspondingly, the second groove wall 1411b of the first positioning groove 1411 is designed as a cylindrical mating surface, and the fourth groove wall 1421b of the second positioning groove 1421 is designed as a cylindrical mating surface. Among them, the cylindrical mating surface of the second groove wall 1411b and the cylindrical mating surface of the fourth groove wall 1421b are coaxially arranged. Thus, when the support member 140 is in positioning fit with the first stator assembly 120 and the second stator assembly 130, the first stator assembly 120 and the second stator assembly 130 can be coaxial.

[0091] ReferenceFigure 1 and Figure 2 As shown, in order to ensure the smoothness and stability of the rotation of the first drive shaft 310 and the second drive shaft 510, the motor 10 includes a first bearing 320, a second bearing 330, a third bearing 520 and a fourth bearing 530. Among them, the first bearing 320 and the second bearing 330 are rotatably matched with the first drive shaft 310, and the first bearing 320, the second bearing 330 and the first drive shaft 310 constitute the first shaft assembly 300 of the motor 10. The third bearing 520 and the fourth bearing 530 are rotatably matched with the second drive shaft 510, and the third bearing 520, the fourth bearing 530 and the second drive shaft 510 constitute the second shaft assembly 500 of the motor 10.

[0092] The first bearing 320 and the second bearing 330 are respectively disposed on both axial sides of the first rotor assembly 200, and the third bearing 520 and the fourth bearing 530 are respectively disposed on both axial sides of the second rotor assembly 400. The first bearing 320 is located on the side of the first rotor assembly 200 facing the second rotor assembly 400, and the third bearing 520 is located on the side of the second rotor assembly 400 facing the first rotor assembly 200.

[0093] In order to support and fix the first bearing 320 and the third bearing 520, the motor 10 further includes a bearing seat 150, and the bearing seat 150 is located between the first stator assembly 120 and the second stator assembly 130. Figure 1 And refer to Figure 8 , Figure 8 The structure diagram of the bearing seat of the embodiment of the utility model is shown in FIG. The bearing seat 150 is provided with a first mounting groove 1511 and a second mounting groove 1512 which are axially opposite to each other. The first bearing 320 is arranged in the first mounting groove 1511, and the first bearing 320 is connected to the first drive shaft 310. The third bearing 520 is arranged in the second mounting groove 1512, and the third bearing 520 is connected to the second drive shaft 510. The first mounting groove 1511 and the second mounting groove 1512 are both designed as cylindrical grooves, and the axis of the first mounting groove 1511 coincides with the axis of the second mounting groove 1512, so that the first bearing 320 and the third bearing 520 are coaxial, thereby ensuring that the first drive shaft 310 and the second drive shaft 510 are coaxial.

[0094] In one embodiment, reference Figure 3 As shown, the bearing seat 150 is integrally formed by plastic coating with the first stator assembly 120, the second stator assembly 130 and the support member 140. That is to say, the present embodiment also uses the plastic coating process to consolidate the first stator assembly 120, the second stator assembly 130, the support member 140 and the bearing seat 150 into one body, and the bearing seat 150 is also a component in the plastic coating stator 100. In this way, in the final assembly process of the motor 10, the installation process of the bearing seat 150 is omitted, the assembly steps are simplified, and the production efficiency can be improved.

[0095] In one embodiment, please refer again to Figure 8 , the bearing housing 150 includes a housing body 151 and a rib 152 protruding from the outer wall of the housing body 151. The rib 152 is arranged along the circumferential direction of the housing body 151. Among them, the rib 152 can be a complete ring-shaped rib plate, or can be composed of a plurality of spaced-apart rib plates, and the embodiments of the present application do not limit this.

[0096] Since the above-mentioned bearings are installed in the bearing housing 150, the loads acting on the bearings when the first drive shaft 310 and the second drive shaft 510 rotate will be transmitted to the bearing housing 150, and the bearing housing 150 bears a large load. In this embodiment, by providing a rib 152 on the outer circumference of the housing body 151, after the plastic-coated stator 100 is injection-molded, the rib 152 will be embedded into the interior of the plastic-sealed housing 110, enhancing the connection firmness between the bearing housing 150 and the plastic-sealed housing 110, preventing the bearing housing 150 from loosening and shifting under the action of the load, and avoiding affecting the normal rotation of the first drive shaft 310 and the second drive shaft 510.

[0097] In another alternative embodiment of the present application, the bearing housing 150 can also be an integral structure with the support member 140. It can be understood that the bearing housing 150 and the support member 140 can be integrally formed. For example, the bearing housing 150 and the support member 140 can be formed by machining from the same blank. It is easy to understand that by setting the bearing housing 150 and the support member 140 as an integral structure, during the general assembly process of the motor 10, the installation process of the bearing housing 150 can also be omitted, simplifying the assembly steps and improving production efficiency.

[0098] In one embodiment, the motor 10 includes a belt drive assembly 800, and the second motor drives the drum to rotate through the belt drive assembly 800. Specifically, the belt drive assembly 800 includes a first pulley 810, a second pulley 820, and a transmission belt 830 wound around the first pulley 810 and the second pulley 820. To support the belt drive assembly 800, please refer in combination to Figure 1 and Figure 3 , the plastic-coated stator 100 further includes a support arm 160. The support arm 160 is connected to the plastic-sealed housing 110. A connecting shaft 170 is provided at one end of the support arm 160 away from the plastic-sealed housing 110. The first pulley 810 is rotatably installed on the connecting shaft 170 and is connected to the drum. The second pulley 820 is fixedly connected to the second drive shaft 510. Thus, when the second motor operates, the second drive shaft 510 drives the second pulley 820 to rotate, the second pulley 820 drives the transmission belt 830 to transmit power, so that the transmission belt 830 drives the first pulley 810 to rotate, thereby driving the drum to rotate.

[0099] In one embodiment, the plastic housing 110 and the support arm 160 are integrally molded. This embodiment uses a plastic molding process to consolidate the support arm 160 and the plastic housing 110 into an integral structure, and during the assembly process of the motor 10, the installation step of the support arm 160 is omitted, further improving production efficiency.

[0100] Please refer to Figure 1 The plastic shell 110 is formed with a first accommodating groove 111 and a second accommodating groove 112 which are opposite to each other along its axial direction. The first rotor assembly 200 is arranged in the first accommodating groove 111, and the first drive shaft 310 is passed through the first accommodating groove 111 and connected to the first rotor assembly 200; the second rotor assembly 400 is arranged in the second accommodating groove 112, and the second drive shaft 510 is passed through the second accommodating groove 112 and connected to the second rotor assembly 400.

[0101] To seal the motor 10, refer to Figure 1 The motor 10 further includes a first end cover 600 and a second end cover 700. The first end cover 600 is disposed at one end of the plastic-encapsulated shell 110 along its axial direction to cover the first accommodating groove 111, thereby sealing the first rotor assembly 200, the first bearing 320 and the second bearing 330 in the plastic-encapsulated shell 110; the second end cover 700 is disposed at the other end of the plastic-encapsulated shell 110 along its axial direction, that is, the end of the plastic-encapsulated shell 110 away from the first end cover 600, thereby covering the second accommodating groove 112, thereby sealing the second rotor assembly 400, the third bearing 520 and the fourth bearing 530 in the plastic-encapsulated shell 110.

[0102] In one embodiment, please combine Figure 1 And refer to Figure 9 and Figure 10 , Figure 9 This is a schematic diagram of the structure of the first end cover of an embodiment of the utility model. Figure 10 Schematic diagram of the structure of the second end cover of the embodiment of the utility model. The first end cover 600 is provided with a third mounting groove 620, and the third mounting groove 620 is arranged on the side of the first end cover 600 facing the plastic shell 110, and the second bearing 330 is installed in the third mounting groove 620. The second end cover 700 is provided with a fourth mounting groove 720, and the fourth mounting groove 720 is arranged on the side of the second end cover 700 facing the plastic shell 110, and the fourth bearing 530 is installed in the fourth mounting groove 720.

[0103] Then, the first end cover 600 and the second end cover 700 are not only used to seal the first receiving groove 111 and the second receiving groove 112 respectively, but also used as the mounting parts for the second bearing 330 and the fourth bearing 530 respectively, to support and fix the third bearing 520 and the fourth bearing 530, and thus indirectly support the first drive shaft 310 and the second drive shaft 510. In this embodiment, the second bearing 330 is installed by the first end cover 600, and the fourth support is installed by the second end cover 700, without additionally arranging other mounting parts inside the plastic-sealed housing 110, thereby reducing the internal parts and further reducing the axial length of the motor 10, and further reducing the occupation of the internal space of the dryer.

[0104] Since the first end cover 600 supports the first drive shaft 310 through the second bearing 330, and the second end cover 700 supports the second drive shaft 510 through the fourth bearing 530, to ensure the coaxiality of the first drive shaft 310 and the second drive shaft 510, it is required that the first end cover 600 and the second end cover 700 are also coaxially matched.

[0105] Please refer to Figure 1 , Figure 3 , Figure 9 and Figure 10 , in an embodiment, the first end cover 600 includes a first insertion portion 610, the first insertion portion 610 is inserted into the first receiving groove 111, a first positioning surface 1111 is formed on the groove wall of the first receiving groove 111, and the first insertion portion 610 is in positioning cooperation with the first positioning surface 1111. Among them, the outer peripheral surface of the first insertion portion 610 can be a cylindrical surface, correspondingly, the first positioning surface 1111 is designed as a cylindrical mating surface, and through the positioning cooperation of the two cylindrical surfaces, the positioning of the first end cover 600 and the plastic-sealed housing 110 is realized.

[0106] The second end cover 700 includes a second insertion portion 710, the second insertion portion 710 is inserted into the second receiving groove 112, a second positioning surface 1121 is formed on the groove wall of the second receiving groove 112, and the second insertion portion 710 is in positioning cooperation with the second positioning surface 1121. Among them, the outer peripheral surface of the second insertion portion 710 can be a cylindrical surface, correspondingly, the second positioning surface 1121 is designed as a cylindrical mating surface, and through the positioning cooperation of the two cylindrical surfaces, the positioning of the second end cover 700 and the plastic-sealed housing 110 is realized.

[0107] It can be understood that the first positioning surface 1111 and the second positioning surface 1121 are coaxially arranged. In this way, after the first end cover 600 and the second end cover 700 are respectively positioned with the plastic-sealed housing 110, the coaxiality of the first end cover 600 and the second end cover 700 can be ensured.

[0108] In order to firmly connect the first end cover 600, the second end cover 700 and the plastic-sealed housing 110, in one embodiment, the plastic-sealed housing 110 is provided with a third connection hole 113 penetrating along its axial direction, the first end cover 600 is provided with a first connection hole 630, and the second end cover 700 is provided with a second connection hole 730. The first connection hole 630 is coaxial with the third connection hole 113, and the second connection hole 730 is coaxial with the third connection hole 113. The plastic-sealed housing 110 is connected to the first end cover 600 and the second end cover 700 by a fastener passing through the first connection hole 630, the third connection hole 113 and the second connection hole 730, so that the first end cover 600, the plastic-sealed housing 110 and the second end cover 700 are connected together. Among them, the fastener can be a screw or a rivet.

[0109] In one embodiment, the first insertion portion 610 is in interference fit with the first positioning surface 1111, and the second insertion portion 710 is in interference fit with the second positioning surface 1121.

[0110] That is, the first end cover 600 and the wall of the first receiving groove 111 are in a tight fit, and the second end cover 700 and the wall of the second receiving groove 112 are in a tight fit. Then, during the general assembly process of the motor 10, without the need for screw fixation, the first end cover 600 can be firmly connected to the plastic-coated stator 100, and the second end cover 700 can be firmly connected to the plastic-sealed housing 110, preventing the first end cover 600 and the second end cover 700 from detaching and falling off the plastic-sealed housing 110. Thus, when connecting the first end cover 600, the second end cover 700 and the plastic-coated stator 100, there is no need to hold the first end cover 600 and the second end cover 700 by hand, which is beneficial for the operator to perform the operation and can improve the assembly efficiency.

[0111] The present application also provides a laundry treatment device, and the laundry treatment device includes a motor 10 conceived based on any of the above embodiments. Among them, the laundry treatment device can be a washing machine, a dryer, or a washing and drying integrated machine.

[0112] Since the laundry treatment device adopts all the technical solutions of the motor 10 in the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment.

[0113] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A motor, applied to a laundry treatment device, characterized in that The motor includes: A first drive shaft; A second drive shaft, coaxially arranged with the first drive shaft; and A plastic-coated stator, including a first stator assembly, a second stator assembly, and a support member. The first stator assembly is arranged circumferentially along the first drive shaft, the second stator assembly is arranged circumferentially along the second drive shaft, and the support member is positioned between the first stator assembly and the second stator assembly to make the first stator assembly and the second stator assembly coaxial. The support member, the first stator assembly, and the second stator assembly are plastic-coated into one body.

2. The motor according to claim 1, characterized in that, The support member includes: A first positioning portion, arranged at one end of the support member close to the first stator assembly, and the first positioning portion is in positioning cooperation with the first stator assembly; A second positioning portion, arranged at one end of the support member close to the second stator assembly, and the second positioning portion is in positioning cooperation with the second stator assembly.

3. The motor according to claim 2, characterized in that, The first stator assembly includes a first stator core, and the first positioning portion includes a first positioning groove. The first positioning portion is lapped on the outer periphery of the first stator core through the first positioning groove; The second stator assembly includes a second stator core, and the second positioning portion includes a second positioning groove. The second positioning portion is lapped on the outer periphery of the second stator core through the second positioning groove.

4. The motor according to claim 3, characterized in that, The outer periphery of the first stator core includes a first end face and a first outer peripheral surface connected to the first end face. The first end face is arranged opposite to the second stator assembly. The first positioning groove includes a first groove wall and a second groove wall. The first groove wall abuts and positions with the first end face, and the second groove wall abuts and positions with the first outer peripheral surface; The outer periphery of the second stator core includes a second end face and a second outer peripheral surface connected to the second end face. The second end face is arranged opposite to the first stator assembly. The second positioning groove includes a third groove wall and a fourth groove wall. The third groove wall abuts and positions with the second end face, and the fourth groove wall abuts and positions with the second outer peripheral surface.

5. The motor according to claim 3, characterized in that, The first positioning groove is arranged circumferentially along the first stator core; and / or, the second positioning groove is arranged circumferentially along the second stator core.

6. The electric machine according to any one of claims 1 to 5, characterized in that, The plastic-coated stator further includes a bearing seat, which is located between the first stator assembly and the second stator assembly. The bearing seat is used to support the first drive shaft and / or the second drive shaft through bearings, and the bearing seat is plastic-coated into one body with the first stator assembly, the second stator assembly, and the support member.

7. The motor according to claim 6, characterized in that, The bearing seat includes a seat body and a rib. The rib protrudes from the outer wall of the seat body and is arranged circumferentially along the seat body.

8. The electric machine according to any one of claims 1 to 5, characterized in that, The plastic-coated stator further includes a bearing seat, which is located between the first stator assembly and the second stator assembly. The bearing seat is used to support the first drive shaft and / or the second drive shaft through bearings, and the bearing seat and the support member are of an integral structure.

9. The motor according to any one of claims 1 to 5, characterized in that, The plastic-coated stator includes a plastic-sealed outer shell, and the motor further includes: A first end cover, arranged at one end of the plastic-sealed outer shell along its axial direction. The first end cover is used to support the first drive shaft through a bearing; The second end cover is provided at the other end of the plastic-sealed housing along its axial direction, and the second end cover is used to support the second drive shaft through a bearing.

10. The motor according to claim 9, characterized in that, The plastic-sealed housing is provided with a first receiving groove and a second receiving groove facing away from each other along its axial direction. A first positioning surface is formed on the groove wall of the first receiving groove, and a second positioning surface is formed on the groove wall of the second receiving groove; The first end cover includes a first insertion portion, and the first insertion portion is inserted into the first receiving groove and is in positioning cooperation with the first positioning surface; The second end cover includes a second insertion portion, and the second insertion portion is inserted into the second receiving groove and is in positioning cooperation with the second positioning surface.

11. The motor according to claim 10, characterized in that, The first insertion portion is in interference fit with the first positioning surface; and / or, the second insertion portion is in interference fit with the second positioning surface.

12. The motor according to any one of claims 1 to 5, characterized in that, The clothing treatment device includes a drum and a wind wheel. The first drive shaft is used to connect with the wind wheel, and the second drive shaft is used to connect with the drum; The plastic-sealed stator includes a plastic-sealed housing and a support arm connected to the plastic-sealed housing. A connecting shaft is provided at one end of the support arm away from the plastic-sealed housing; the motor further includes a belt transmission assembly, and the belt transmission assembly includes a first pulley, a second pulley, and a transmission belt wound around the first pulley and the second pulley. The first pulley is rotatably installed on the connecting shaft and is connected to the drum, and the second pulley is connected to the second drive shaft.

13. The motor according to claim 12, characterized in that, The plastic-sealed housing and the support arm are integrally plastic-sealed.

14. A laundry treatment device, characterized in that, It includes a drum, a wind wheel, and the motor according to any one of claims 1 to 13, wherein the first drive shaft is connected to the wind wheel, and the second drive shaft is connected to the drum.

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