Motor and clothes processing equipment

Abstract

The utility model discloses a motor and clothes processing equipment. The motor comprises a first motor, a second motor and a support. The first motor comprises a first stator assembly, the first stator assembly comprises a first stator iron core and a first plastic package shell covering the first stator iron core, and part of the first stator iron core extends out of the first plastic package shell; the second motor comprises a second stator assembly, the second stator assembly comprises a second stator iron core and a second plastic package shell covering the second stator iron core, and part of the second stator iron core extends out of the second plastic package shell; the support comprises a first end and a second end which are opposite in the axial direction of the motor, the first end is connected with the part, located outside the first plastic package shell, of the first stator iron core, and the second end is connected with the part, located outside the second plastic package shell, of the second stator iron core. According to the utility model, the first motor and the second motor share one bracket for connection, so that the axial length of the motors is reduced, and the occupation of the internal space of the clothes dryer can be 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 this regard, 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 large internal space and resulting in an increase in the overall volume of the dryer. Summary of the Utility Model

[0003] The utility model aims to at least solve 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 motor, including a first stator assembly. The first stator assembly includes a first stator core and a first plastic encapsulation shell covering the first stator core. Part of the first stator core extends out of the first plastic encapsulation shell.

[0007] A second motor, including a second stator assembly. The second stator assembly includes a second stator core and a second plastic encapsulation shell covering the second stator core. Part of the second stator core extends out of the second plastic encapsulation shell.

[0008] A bracket is supported between the first motor and the second motor. The first motor and the second motor are coaxially arranged. The bracket includes a first end and a second end facing away from each other along the axial direction of the motor. The first end is connected to the part of the first stator core outside the first plastic encapsulation shell, and the second end is connected to the part of the second stator core outside the second plastic encapsulation shell.

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

[0010] By connecting the first stator assembly to the bracket and connecting the second stator assembly to the bracket, the first motor and the second motor are connected as a whole, that is, the first motor and the second motor share a bracket for connection. Compared with directly connecting two complete motors in the related art, at least one part is saved, the axial length of the motor is reduced, the overall volume of the motor is reduced, and the occupation of the internal space of the dryer can be reduced.

[0011] Moreover, in the present utility model, the part of the first stator core extending outside the first plastic housing is connected to the bracket, and the part of the second stator core extending outside the second plastic housing is connected to the bracket. Compared with connecting the plastic housings of the two to the bracket, the connection strength between the first stator assembly, the second stator assembly and the bracket is enhanced, the problem of plastic being crushed and deformed due to the pre-tightening force of the fastener connection is avoided, the firmness and reliability of the connection between the first stator assembly, the second stator assembly and the bracket are improved, and the connection between the first motor and the second motor can be ensured to be firm and reliable.

[0012] According to some embodiments of the present utility model, the first stator core includes a first core body and a first connecting portion. The first connecting portion is connected to the outer peripheral edge of the first core body and extends outside the first plastic housing, and the first connecting portion is connected to the first end;

[0013] The second stator core includes a second core body and a second connecting portion. The second connecting portion is connected to the outer peripheral edge of the second core body and extends outside the second plastic housing, and the second connecting portion is connected to the second end.

[0014] According to some embodiments of the present utility model, the bracket includes a first positioning portion. The first positioning portion is arranged at the first end, and the first positioning portion is in positioning cooperation with the first connecting portion;

[0015] The bracket includes a second positioning portion. The second positioning portion is arranged at the second end, and the second positioning portion is in positioning cooperation with the second connecting portion.

[0016] According to some embodiments of the present utility model, the first positioning portion is located on the side of the first connecting portion away from the first core body, and a first positioning surface is arranged on the side of the first positioning portion facing the first connecting portion. The first positioning surface is in positioning cooperation with the outer wall of the first connecting portion; and / or,

[0017] The second positioning portion is located on the side of the second connecting portion away from the second core body, and a second positioning surface is arranged on the side of the second positioning portion facing the second connecting portion. The second positioning surface is in positioning cooperation with the outer wall of the second connecting portion.

[0018] According to some embodiments of the present utility model, the bracket is provided with a first receiving groove and a second receiving groove. The groove wall of the first receiving groove surrounds part of the first stator assembly, and the groove wall of the second receiving groove surrounds part of the second stator assembly. The first end is provided with a first end face, and the second end is provided with a second end face;

[0019] Wherein, the first connecting portion is located outside the first receiving groove and is connected to the first end face; the second connecting portion is located outside the second receiving groove and is connected to the second end face.

[0020] According to some embodiments of the present utility model, a third positioning surface is formed on the groove wall of the first receiving groove. The first iron core body includes a first stator yoke portion. The outer peripheral edge of the first stator yoke portion extends outside the first plastic encapsulation housing and is located in the first receiving groove. The outer peripheral edge of the first stator yoke portion is in positioning cooperation with the third positioning surface;

[0021] A fourth positioning surface is formed on the groove wall of the second receiving groove. The second iron core body includes a second stator yoke portion. The outer peripheral edge of the second stator yoke portion extends outside the second plastic encapsulation housing and is located in the second receiving groove. The outer peripheral edge of the second stator yoke portion is in positioning cooperation with the fourth positioning surface.

[0022] According to some embodiments of the present utility model, the outer peripheral edge of the first stator yoke portion is in interference fit with the third positioning surface; and / or, the outer peripheral edge of the second stator yoke portion is in interference fit with the fourth positioning surface.

[0023] According to some embodiments of the present utility model, the motor further includes:

[0024] A first shaft assembly, passing through the first stator assembly. The first shaft assembly includes a first driving shaft and a first bearing connected to the first driving shaft;

[0025] A second shaft assembly, passing through the second stator assembly. The second shaft assembly includes a second driving shaft and a second bearing connected to the second driving shaft;

[0026] A bearing chamber is provided inside the bracket. The bearing chamber includes a first installation groove and a second installation groove arranged along the axial direction of the motor. The first bearing is arranged in the first installation groove, and the second bearing is arranged in the second installation groove.

[0027] According to some embodiments of the present utility model, the first shaft assembly further includes a third bearing connected to the first driving shaft, and the second shaft assembly further includes a fourth bearing connected to the second driving shaft;

[0028] The first stator assembly further includes a first support member provided with a third mounting groove for supporting the third bearing, and the first support member and the first stator core are integrally plastic-coated;

[0029] The second stator assembly further includes a second support member provided with a fourth mounting groove for supporting the fourth bearing, and the second support member and the second stator core are integrally plastic-coated.

[0030] According to some embodiments of the present invention, the laundry treatment device includes a drum and a blower wheel, the first motor is used to connect with the blower wheel, and the second motor is used to connect with the drum;

[0031] The bracket includes a main body and a support arm connected to the main body. A connecting shaft is provided at one end of the support arm away from the main body; the second motor includes a second driving shaft, and the motor further includes a belt transmission assembly. 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 mounted on the connecting shaft and is connected to the drum, and the second pulley is connected to the second driving shaft.

[0032] According to some embodiments of the present invention, the support arm and the main body are integrally formed.

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

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

[0035] By adopting the motor of the first aspect embodiment, the motor connects the first stator assembly to the bracket and the second stator assembly to the bracket, so that the first motor and the second motor are connected as a whole, that is, the first motor and the second motor share a bracket for connection. Compared with directly connecting two complete motors in the related art, at least one part is saved, the axial length of the motor is reduced, the overall volume of the motor is reduced, and the occupation of the internal space of the dryer can be reduced.

[0036] Moreover, in the present utility model, the part of the first stator core extending outside the first plastic encapsulation housing is connected to the bracket, and the part of the second stator core extending outside the second plastic encapsulation housing is connected to the bracket. Compared with connecting the two through their plastic encapsulation housings to the bracket, the connection strength between the first stator assembly, the second stator assembly and the bracket is enhanced, the problem of plastic material being crushed and deformed due to the pre-tightening force of the fastener connection is avoided, the firmness and reliability of the connection between the first stator assembly, the second stator assembly and the bracket are improved, and it can ensure that the first motor and the second motor are firmly and reliably connected.

[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 following further describes the present utility model 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 diagram of the first stator assembly according to the embodiment of the present utility model;

[0042] Figure 4 is a schematic structural diagram of the second stator assembly according to the embodiment of the present utility model;

[0043] Figure 5 is a schematic structural diagram of the first stator core according to the embodiment of the present utility model;

[0044] Figure 6 is a schematic structural diagram of the second stator core according to the embodiment of the present utility model;

[0045] Figure 7 is a schematic structural diagram of the bracket from the first perspective according to the embodiment of the present utility model;

[0046] Figure 8 is a schematic structural diagram of the bracket from the second perspective according to the embodiment of the present utility model;

[0047] Figure 9 is Figure 1 a partial enlarged view of A in

[0048] Figure 10 is Figure 1 a partial enlarged view of B in

[0049] Figure 11 is Figure 7Partial enlarged view at position C;

[0050] Figure 12 is Figure 8 Partial enlarged view at position D;

[0051] Figure 13 Assembly schematic diagram of the first shaft assembly and the first rotor assembly of the embodiment of the present utility model;

[0052] Figure 14 Assembly schematic diagram of the second shaft assembly and the second rotor assembly of the embodiment of the present utility model.

[0053] Reference numerals in the drawings:

[0054] Motor 10;

[0055] First motor 10a; First stator assembly 100; First plastic-sealed housing 110;

[0056] First stator core 120; First core body 121; First stator yoke 1211; First stator teeth 1212; First connecting portion 122; First connecting hole 1221; First support member 130; Third mounting groove 131;

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

[0058] Second motor 10b; Second stator assembly 400; Second plastic-sealed housing 410;

[0059] Second stator core 420; Second core body 421; Second stator yoke 4211; Second stator teeth 4212; Second connecting portion 422; Second connecting hole 4221; Second support member 430; Fourth mounting groove 431;

[0060] Second rotor assembly 500; Second shaft assembly 600; Second drive shaft 610; Second bearing 620; Fourth bearing 630;

[0061] Bracket 700; Main body 710; First end 711; First end face 7111; Second end 712; Second end face 7121; Third connection 713; First receiving groove 714; Third positioning surface 7141; Second receiving groove 715; Fourth positioning surface 7151;

[0062] First positioning portion 720; First positioning surface 721; Second positioning portion 730; Second positioning surface 731;

[0063] Bearing chamber 740; First mounting groove 741; Second mounting groove 742; Support arm 750; Connecting shaft 760;

[0064] The first fastener 800a; the second fastener 800b;

[0065] The belt drive assembly 900; the first pulley 910; the second pulley 920; the drive belt 930. Detailed implementation manners

[0066] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein 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 by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0067] In the description of the present utility model, it should be understood that the orientation descriptions, such as up, down, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0068] In the description of the present utility model, "a plurality of" means more than two. If there is a description of the first and the second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0069] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", 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.

[0070] The present application provides a motor, which is mainly applied to a laundry treatment device. Among them, the laundry treatment device may include, but is not limited to, electrical appliances such as washing machines, dryers, and washing and drying integrated machines. Below, the dryer will be mainly used as an example for detailed description.

[0071] When the laundry treatment device 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.

[0072] For some dryers, the drum and the air impeller are driven by the same drive shaft, so the rotation directions of the air impeller and the drum are always the same. When the drum rotates in reverse, the air impeller also rotates in reverse. At this time, the air volume generated by the air impeller is very weak, resulting in a reduction in the hot air flow entering the drum and affecting the drying efficiency of the dryer.

[0073] Please refer to Figure 1 , Figure 1 FIG. is a cross-sectional view of the motor according to an embodiment of the present invention. In the embodiment of the present application, the motor 10 includes a first motor 10a and a second motor 10b. The first motor 10a includes a first drive shaft 310, and the first drive shaft 310 is connected to the air impeller of the dryer. The second motor 10b includes a second drive shaft 610, and the second drive shaft 610 is connected to the drum of the dryer.

[0074] Specifically, during the operation of the dryer, the first drive shaft 310 of the first motor 10a drives the air impeller to rotate, and the second drive shaft 610 of the second motor 10b drives the drum to rotate, that is, the drum and the air impeller are driven by different drive shafts respectively, and the rotation of the drum and the rotation of the air impeller are independent of each other. Then, when the second motor 10b drives the drum to rotate in reverse, the air impeller can still maintain its original rotation direction under the drive of the first motor 10a, ensuring the air volume, so that the reverse rotation of the drum will not affect the hot air flow 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%.

[0075] Please combine Figure 1 and refer to Figure 2 , Figure 2 FIG. is an exploded view of the motor according to an embodiment of the present invention. The first motor 10a includes a first stator assembly 100, a first rotor assembly 200, and the above-mentioned first drive shaft 310. The first stator assembly 100 is sleeved outside the first rotor assembly 200, that is, the first stator assembly 100 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 100, and the first rotor assembly 200 drives the first drive shaft 310 to rotate, thereby driving the air impeller to rotate.

[0076] The second motor 10b includes a second stator assembly 400, a second rotor assembly 500, and the aforementioned second drive shaft 610. The second stator assembly 400 is sleeved outside the second rotor assembly 500, that is, the second stator assembly 400 is arranged around the second rotor assembly 500. The second drive shaft 610 passes through the second rotor assembly 500 and is fixedly connected to the second rotor assembly 500. Under the action of the magnetic field, the second rotor assembly 500 can be driven to rotate relative to the second stator assembly 400, and the second rotor assembly 500 drives the second drive shaft 610 to rotate, thereby driving the drum to rotate.

[0077] To enable the dryer to work better, the first motor 10a and the second motor 10b can be assembled into one unit. In the related art, generally, two existing complete motors are directly connected. For example, the end cover of one motor is connected to the end cover of the other motor through fasteners such as screws. After such assembly, the motor occupies more space, squeezing the installation space of other components inside the dryer, resulting in an increase in the volume of the dryer.

[0078] To solve the above problems, the motor 10 includes a bracket 700, and the bracket 700 is used to support the first motor 10a and the second motor 10b. Please continue to refer to Figure 1 , the bracket 700 includes a first end 711 and a second end 712 that are opposite to each other along the axial direction of the motor 10. The first end 711 is connected to the first stator assembly 100, and the second end 712 is connected to the second stator assembly 400.

[0079] Specifically, by connecting the first stator assembly 100 to the bracket 700 and connecting the second stator assembly 400 to the bracket 700, the first motor 10a and the second motor 10b are connected into one unit. That is, the first motor 10a and the second motor 10b in the embodiment of the present invention share a bracket 700 for connection. Compared with directly connecting two complete motors in the related art, the end covers of each other are omitted, at least one part is saved, the axial length of the motor 10 is reduced, and thus the overall volume of the motor 10 is reduced, which can reduce the occupation of the internal space of the dryer.

[0080] Please combine Figure 1 and refer to Figure 3 and Figure 4 , Figure 3 is a schematic structural diagram of the first stator assembly in the embodiment of the present invention. Figure 4It is a schematic structural diagram of the second stator assembly according to an embodiment of the present invention. The first stator assembly 100 includes a first stator core 120 and a first plastic-sealed housing 110 that encapsulates the first stator core 120, and a part of the first stator core 120 extends outside the first plastic-sealed housing 110. The second stator assembly 400 includes a second stator core 420 and a second plastic-sealed housing 410 that encapsulates the second stator core 420, and a part of the second stator core 420 extends outside the second plastic-sealed housing 410. The first end 711 of the bracket 700 is connected to the part of the first stator core 120 outside the first plastic-sealed housing 110, and the second end 712 is connected to the part of the second stator core 420 outside the second plastic-sealed housing 410.

[0081] Specifically, the first end 711 can be connected to the first stator core 120 by fasteners such as screws and rivets. Similarly, the second end 712 can be connected to the second stator core 420 by fasteners such as screws and rivets.

[0082] In the present invention, by connecting the part of the first stator core 120 that extends outside the first plastic-sealed housing 110 to the bracket 700, and connecting the part of the second stator core 420 that extends outside the second plastic-sealed housing 410 to the bracket 700, rather than connecting the plastic-sealed housings of the two to the bracket 700, the connection strength between the first stator assembly 100, the second stator assembly 400 and the bracket 700 is enhanced, the problem of plastic material being crushed and deformed due to the pre-tightening force of the fastener connection is avoided, the firmness and reliability of the connection between the first stator assembly, the second stator assembly 400 and the bracket 700 are improved, and thus the firm and reliable connection between the first motor 10a and the second motor 10b is ensured.

[0083] Please refer to Figure 1 for reference Figure 5 , Figure 5 It is a schematic structural diagram of the first stator core according to an embodiment of the present invention. The first stator core 120 includes a first core body 121 and a first connecting portion 122. Among them, the first core body 121 is the main structure of the first stator core 120. The first core body 121 includes a first stator yoke portion 1211 and a plurality of first stator teeth 1212 connected to the first stator yoke portion 1211, and windings are wound around the first stator teeth 1212. The first connecting portion 122 is connected to the outer periphery of the first core body 121 (that is, the outer periphery of the first stator yoke portion 1211) and extends outside the first plastic-sealed housing 110, and the first connecting portion 122 is connected to the first end 711.

[0084] In this embodiment, the first stator core 120 is configured as the above structure. The first connecting portion 122 protrudes from the outer peripheral edge of the first core body 121. By connecting the first connecting portion 122 to the bracket 700 instead of connecting the first core body 121 to the bracket 700, the first core body 121 does not need to be made very large, avoiding material waste and reducing production costs. Moreover, the first connecting portion 122 is located at the outer peripheral edge of the first core body 121. The pre-tightening force generated by connecting the first connecting portion 122 to the bracket 700 through fasteners mainly acts on the first connecting portion 122 and has little influence on the first core body 121, which can prevent the first core body 121 from deforming.

[0085] To enhance the firmness of the connection between the first stator assembly 100 and the bracket 700, the number of the first connecting portions 122 is set to be multiple, and the multiple first connecting portions 122 can be evenly distributed along the outer peripheral edge of the first core body 121. It can be understood that only three first connecting portions 122 are shown in the drawings of this application as an example and should not be regarded as a limitation of this application.

[0086] Please refer to Figure 1 and refer to Figure 6 , Figure 6 which is a schematic structural diagram of the second stator core of the embodiment of the present invention. The second stator core 420 includes a second core body 421 and a second connecting portion 422. Among them, the second core body 421 includes a second stator yoke portion 4211 and a plurality of second stator teeth 4212 connected to the second stator yoke portion 4211, and windings are wound around the second stator teeth 4212. The second connecting portion 422 is connected to the outer peripheral edge of the second core body 421 (i.e., the outer peripheral edge of the second stator yoke portion 4211) and extends outside the second plastic encapsulation housing 410, and the second connecting portion 422 is connected to the second end 712.

[0087] Similarly, in this embodiment, by connecting the second connecting portion 422 to the bracket 700 instead of connecting the second core body 421 to the bracket 700, the second core body 421 does not need to be made very large, avoiding material waste and reducing production costs. Moreover, the second connecting portion 422 is located at the outer peripheral edge of the second core body 421. The pre-tightening force generated by connecting the second connecting portion 422 to the bracket 700 through fasteners mainly acts on the second connecting portion 422 and has little influence on the second core body 421, which can prevent the second core body 421 from deforming.

[0088] Similarly, the number of the second connecting portions 422 can be set to be multiple, and the multiple second connecting portions 422 are evenly distributed along the outer peripheral edge of the first core. In one embodiment, the number of the second connecting portions 422 is the same as the number of the first connecting portions 122.

[0089] Please refer toFigure 1 and refer to Figure 7 and Figure 8 , Figure 7 , which is a schematic structural diagram of the first perspective of the bracket according to the embodiment of the present invention, Figure 8 is a schematic structural diagram of the second perspective of the bracket according to the embodiment of the present invention. The bracket 700 includes a main body 710, and the main body 710 is configured to be generally sleeve-shaped. The main body 710 can be sleeved on a part of the first stator assembly 100 and a part of the second stator assembly 400 to better support the first stator assembly 100 and the second stator assembly 400.

[0090] In one embodiment, the motor 10 includes a belt transmission assembly 900, and the second motor 10b drives the roller to rotate through the belt transmission assembly 900. Specifically, the belt transmission assembly 900 includes a first pulley 910, a second pulley 920, and a transmission belt 930 wound around the first pulley 910 and the second pulley 920. To support the belt transmission assembly 900, the bracket 700 further includes a support arm 750. The support arm 750 is connected to the main body 710. A connecting shaft 760 is provided at one end of the support arm 750 away from the main body 710. The first pulley 910 is rotatably installed on the connecting shaft 760 and is connected to the roller. The second pulley 920 is fixedly connected to the second drive shaft 610. When the second motor 10b operates, the second drive shaft 610 drives the second pulley 920 to rotate. The second pulley 920 drives the transmission belt 930 to transmit power, so that the transmission belt 930 drives the first pulley 910 to rotate, thereby driving the roller to rotate.

[0091] In one embodiment, the main body 710 and the support arm 750 are integrally formed. For example, the support arm 750 and the main body 710 can be machined from the same blank. By providing the support arm 750 and the main body 710 to be integrally formed, the support arm 750 and the main body 710 are a whole. During the assembly process of the motor 10, the installation step of the support arm 750 is omitted, which can improve production efficiency.

[0092] In one embodiment, the bracket 700 is provided with a first receiving groove 714 and a second receiving groove 715. The groove wall of the first receiving groove 714 surrounds a part of the first stator assembly 100, and the groove wall of the second receiving groove 715 surrounds a part of the second stator assembly 400.

[0093] Please combine Figure 1 , Figure 7 , Figure 8 and refer to Figure 9 and Figure 10 , Figure 9 is Figure 1 a partial enlarged view of part A in Figure 10 is Figure 1Partial enlarged view at B in the figure. The first end 711 is provided with a first end face 7111, and the first connecting portion 122 is located outside the first receiving groove 714 and connected to the first end face 7111. The second end 712 is provided with a second end face 7121, and the second connecting portion 422 is located outside the second receiving groove 715 and connected to the second end face 7121.

[0094] Then, the part of the first connecting portion 122 that extends out of the first plastic encapsulation housing 110 and is located outside the first receiving groove 714 is connected to the first end 711 outside the bracket 700; the part of the second connecting portion 422 that extends out of the second plastic encapsulation housing 410 and is located outside the second receiving groove 715 is connected to the second end 712 outside the bracket 700. There is a larger operating space outside the bracket 700, which is more convenient for the operator to perform the connection operation, can improve production efficiency, and is conducive to subsequent maintenance and repair.

[0095] Specifically, the first connecting portion 122 is provided with a first connecting hole 1221, the second connecting portion 422 is provided with a second connecting hole 4221, and the bracket 700 is provided with a third connecting hole 713 that axially penetrates the first end face 7111 and the second end face 7121. In one embodiment, the motor 10 includes a first fastener 800a and a second fastener 800b. The first fastener 800a is disposed in the first connecting hole 1221 and the third connecting hole 713 to connect and fix the first stator assembly 100 to the first end 711 of the bracket 700. The second fastener 800b is disposed in the second connecting hole 4221 and the third connecting hole 713 to connect and fix the second stator assembly 400 to the second end 712 of the bracket 700. Wherein, the first fastener 800a and the second fastener 800b can be screws or rivets.

[0096] In another alternative embodiment, the motor 10 may include a third fastener that passes through the first connecting hole 1221, the second connecting hole 4221, and the third connecting hole 713, and only the third fastener is used to connect and fix the first stator assembly 100, the second stator assembly 400, and the bracket 700.

[0097] In one embodiment, the bracket 700 further includes a first positioning portion and a second positioning portion. The first positioning portion is disposed at the first end 711 and is in positioning cooperation with the first connecting portion 122. The second positioning portion is disposed at the second end 712 and is in positioning cooperation with the second connecting portion 422.

[0098] By setting the first positioning portion to perform positioning with the first connecting portion 122 and setting the second positioning portion to perform positioning with the second connecting portion 422, it is convenient to align the first stator assembly 100 with the bracket 700 and the second stator assembly 400 with the bracket 700, so as to more quickly align the first connecting hole 1221 with the third connecting hole 713 and align the second connecting hole 4221 with the third connecting hole 713, improving the assembly efficiency.

[0099] The first positioning portion and the first connecting portion 122, and the second positioning portion and the second connecting portion 422 can adopt various positioning methods. For example, both the first positioning portion and the second positioning portion can be set as positioning pins, and positioning holes can be provided on both the first connecting portion 122 and the second connecting portion 422. Through the insertion fit between the positioning pin and the positioning hole, pin-hole positioning is achieved. Another example is that both the first positioning portion and the second positioning portion can be provided with positioning surfaces. Correspondingly, mating surfaces are provided on both the first connecting portion 122 and the second connecting portion 422. Through the contact fit between the positioning surface and the mating surface, surface positioning is achieved.

[0100] In an embodiment, referring to Figure 7 and Figure 8 as shown, the first positioning portion 720 protrudes from the first end face 7111 and is provided in a columnar shape, and the second positioning portion 730 protrudes from the second end face 7121 and is provided in a columnar shape.

[0101] Please combine Figure 9 、 Figure 10 and refer to Figure 11 and Figure 12 , Figure 11 For Figure 7 the partial enlargement at C in Figure 12 and Figure 8 is the partial enlarged view at D in

[0102] In this embodiment, the first positioning portion 720 is positioned and cooperated with the first connecting portion 122 through the first positioning surface 721, that is, surface positioning is adopted between the two. The positioning structure is simple, and the positioning process is convenient and fast. Moreover, the first positioning portion 720 is located on the side of the first connecting portion 122 away from the first iron core body 121, that is, the first positioning portion 720 is located on the radial side of the first stator assembly 100, realizing the radial positioning of the first stator assembly 100. Based on this structure, one first positioning portion 720 is provided corresponding to each first connecting portion 122, which can quickly align the first connecting holes 1221 on each first connecting portion 122 with the third connecting holes 713 on the bracket 700, improving the assembly efficiency.

[0103] Similarly, the second positioning portion 730 is positioned and cooperated with the second connecting portion 422 through the second positioning surface 731, that is, surface positioning is also adopted between the two. The positioning structure is simple, and the positioning process is convenient and fast. Moreover, the second positioning portion 730 is located on the side of the second connecting portion 422 away from the second iron core body 421, that is, the second positioning portion 730 is located on the radial side of the second stator assembly 400, realizing the radial positioning of the second stator assembly 400. Then, one second positioning portion 730 is provided corresponding to each second connecting portion 422, which can quickly align the second connecting holes 4221 on each second connecting portion 422 with the third connecting holes 713 of the bracket 700, improving the assembly efficiency.

[0104] It is easy to understand that the positioning between the first positioning portion 720 and the first connecting portion 122 and the positioning between the second positioning portion 730 and the second connecting portion 422 are for the convenience of installing the first connecting portion 122, the second connecting portion 422 and the bracket 700. Both can be rough positioning and do not require very high positioning accuracy.

[0105] To ensure the coaxiality of the first stator assembly 100 and the second stator assembly 400, fine positioning can also be set. In one embodiment, please refer to Figures 7 to 9 , a third positioning surface 7141 is formed on the groove wall of the first receiving groove 714. The first stator yoke portion 1211 of the first iron core body 121 extends out of the first plastic housing 110 and is located in the first receiving groove 714. The outer peripheral edge of the first stator yoke portion 1211 is positioned and cooperated with the third positioning surface 7141. Among them, the outer peripheral edge of the first stator yoke portion 1211 is a cylindrical surface. Correspondingly, the third positioning surface 7141 is designed as a cylindrical mating surface. Through the positioning cooperation of the two cylindrical surfaces, the fine positioning of the first stator assembly 100 and the bracket 700 is realized.

[0106] Please refer to Figure 7 , Figure 8 and Figure 10, a fourth positioning surface 7151 is formed on the groove wall of the second receiving groove 715. The second stator yoke portion 4211 of the second iron core body 421 extends out of the second plastic encapsulation housing 410 and is located in the second receiving groove 715. The outer peripheral edge of the second stator yoke portion 4211 is in positioning cooperation with the fourth positioning surface 7151. Wherein, the outer peripheral edge of the second stator yoke portion 4211 is a cylindrical surface. Correspondingly, the fourth positioning surface 7151 is designed as a cylindrical mating surface. Through the positioning cooperation of the two cylindrical surfaces, precise positioning of the second stator assembly 400 and the bracket 700 is achieved.

[0107] It can be understood that the third positioning surface 7141 and the fourth positioning surface 7151 are coaxially arranged. In this way, after the first stator assembly 100 and the second stator assembly 400 are respectively positioned with the bracket 700, it can be ensured that the first stator assembly 100 and the second stator assembly 400 are coaxial.

[0108] It should also be pointed out that in this embodiment, the first stator yoke portion 1211 of the first iron core body 121 is in positioning cooperation with the third positioning surface 7141, rather than directly positioning the first plastic encapsulation housing 110 with the third positioning surface 7141, and the second stator yoke portion 4211 of the second iron core body 421 is in positioning cooperation with the fourth positioning surface 7151, rather than directly positioning the second plastic encapsulation housing 410 with the fourth positioning surface 7151. Since both the first iron core body 121 and the second iron core body 421 are made of metal materials, compared with the plastic material of the plastic encapsulation housing, it is easier to control the machining accuracy of the first iron core body 121 and the second iron core body 421, and it is more suitable as a reference for coaxial positioning, so as to better control the positioning accuracy of the first iron core body 121 and the third positioning surface 7141, and the positioning accuracy of the second iron core body 421 and the fourth positioning surface 7151.

[0109] In an embodiment, the outer peripheral edge of the first stator yoke portion 1211 is in interference fit with the third positioning surface 7141, and the outer peripheral edge of the second stator yoke portion 4211 is in interference fit with the fourth positioning surface 7151.

[0110] That is, the first stator assembly 100 and the groove wall of the first receiving groove 714 are in a tight fit, and the second stator assembly 400 and the groove wall of the second receiving groove 715 are in a tight fit. Then, during the general assembly process of the motor 10, without the need for screw fixation, the first stator assembly 100 can be firmly connected to the bracket 700, and the second stator assembly 400 can be firmly connected to the bracket 700, preventing the first stator assembly 100 and the second stator assembly 400 from detaching and falling off the bracket 700. Thus, when the first connecting portion 122 and the second connecting portion 422 are connected to the bracket 700 by screws, there is no need to hold the first stator assembly 100 and the second stator assembly 400 by hand, which is beneficial for the operator to operate and can improve the assembly efficiency.

[0111] In one embodiment, the first stator assembly 100 and the second stator assembly 400 are configured to have the same structure. Then, during the overall assembly process of the motor 10, there is no need to distinguish between the first stator assembly 100 and the second stator assembly 400, which improves the error tolerance rate during the assembly process of the motor 10, improves the assembly efficiency, and can improve the production efficiency. Moreover, since the first stator assembly 100 and the second stator assembly 400 have the same structure, they can be injection-molded using the same injection mold, reducing the number of injection molds required during the production process of the motor components and effectively reducing the production cost.

[0112] Of course, in some other embodiments of the present application, the first rotor assembly 200 and the second rotor assembly 500 can also be configured to have the same structure. Similarly, during the overall assembly process of the motor 10, there is no need to distinguish between the first rotor assembly 200 and the second rotor assembly 500, which improves the assembly efficiency and can further improve the production efficiency. At the same time, the first rotor assembly 200 and the second rotor assembly 500 can be produced on the same production line without opening two rotor production lines, further reducing the production cost.

[0113] To ensure the smoothness and stability of the rotation of the first drive shaft 310 and the second drive shaft 610, please refer to Figure 1 and Figure 13 and Figure 14 , Figure 13 FIG. 14 is an assembly schematic diagram of the first shaft assembly and the first rotor assembly according to an embodiment of the present invention, Figure 14 FIG. 15 is an assembly schematic diagram of the second shaft assembly and the second rotor assembly according to an embodiment of the present invention. The motor 10 includes a first bearing 320, a second bearing 620, a third bearing 330, and a fourth bearing 630. The first bearing 320 and the third bearing 330 are respectively disposed on the axial two sides of the first rotor assembly 200. The first bearing 320 and the third bearing 330 are rotationally engaged with the first drive shaft 310. The first bearing 320, the third bearing 330, and the first drive shaft 310 constitute the first shaft assembly 300 of the motor 10. The second bearing 620 and the fourth bearing 630 are respectively disposed on the axial two sides of the second rotor assembly 500. The second bearing 620 and the fourth bearing 630 are rotationally engaged with the second drive shaft 610. The second bearing 620, the fourth bearing 630, and the second drive shaft 610 constitute the second shaft assembly 600 of the motor 10. Among them, the first bearing 320 is located on the side of the first rotor assembly 200 close to the second motor 10b, and the second bearing 620 is located on the side of the second rotor assembly 500 close to the first motor 10a.

[0114] In order to support and fix the first bearing 320 and the second bearing 620, in one embodiment, please refer to Figure 1 , Figure 7 and Figure 8, a bearing chamber 740 is provided inside the bracket 700. The bearing chamber 740 includes a first mounting groove 741 and a second mounting groove 742. The first mounting groove 741 and the second mounting groove 742 are arranged along the axial direction of the motor 10. The first bearing 320 is disposed in the first mounting groove 741, and the second bearing 620 is disposed in the second mounting groove 742. Among them, both the first mounting groove 741 and the second mounting groove 742 are designed as cylindrical grooves, and the axis of the first mounting groove 741 coincides with the axis of the second mounting groove 742, so that the first bearing 320 and the second bearing 620 are coaxial, thereby ensuring that the first drive shaft 310 and the second drive shaft 610 are coaxial.

[0115] Please refer to Figure 1 , Figure 3 and Figure 4 , the motor 10 further includes a first support member 130. The first support member 130 is provided with a third mounting groove 131, and the third bearing 330 is disposed in the third mounting groove 131. Among them, the first support member 130 is a metal part, so that the first support member 130 has sufficient strength to better withstand the load acting on the first support member 130 when the first drive shaft 310 rotates, reduce deformation, and improve the reliability of the rotation of the first drive shaft 310. As Figure 3 shown, the first support member 130 is designed in a sleeve shape, and the first support member 130 can be formed by stamping a metal plate.

[0116] The second stator assembly 400 further includes a second support member 430. The second support member 430 is provided with a fourth mounting groove 431, and the fourth bearing 630 is disposed in the fourth mounting groove 431. Similarly, the second support member 430 is a metal part, so that the second support member 430 has sufficient strength to better withstand the load acting on the second support member 430 when the second drive shaft 610 rotates, reduce deformation, and improve the reliability of the rotation of the second drive shaft 610. As Figure 4 shown, the second support member 430 is designed in a sleeve shape, and the second support member 430 can be formed by stamping a metal plate.

[0117] In one embodiment, the first support member 130 and the first stator core 120 are integrally plastic-coated. By using the injection molding method to integrally plastic-coat and consolidate the first support member 130 and the first stator core 120, during the general assembly process of the motor 10, the installation step of the first support member 130 is omitted, the assembly process is simplified, and the assembly efficiency can be improved.

[0118] In one embodiment, the second support member 430 and the second stator core 420 are integrally plastic-coated. Similarly, by using the injection molding method to integrally plastic-coat the second support member 430 and the second stator core 420, during the general assembly process of the motor 10, the installation step of the second support member 430 is omitted, the assembly process is simplified, and the assembly efficiency can be improved.

[0119] The present application also provides a clothes processing device, which includes a motor 10 conceived based on any of the above embodiments. The clothes processing device can be a washing machine, a dryer, or a washer-dryer.

[0120] Since the clothes processing device adopts all the technical solutions of the motor 10 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment.

[0121] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A motor, applied to a laundry treatment device, characterized in that The motor includes: A first motor, including a first stator assembly, the first stator assembly including a first stator core and a first plastic-sealed housing covering the first stator core, and a part of the first stator core extending outside the first plastic-sealed housing; A second motor, including a second stator assembly, the second stator assembly including a second stator core and a second plastic-sealed housing covering the second stator core, and a part of the second stator core extending outside the second plastic-sealed housing; A bracket supported between the first motor and the second motor, the first motor and the second motor being coaxially arranged, the bracket including a first end and a second end facing away from each other along the axial direction of the motor, the first end being connected to the part of the first stator core outside the first plastic-sealed housing, and the second end being connected to the part of the second stator core outside the second plastic-sealed housing.

2. The motor according to claim 1, characterized in that, The first stator core includes a first core body and a first connecting portion, the first connecting portion being connected to the outer periphery of the first core body and extending outside the first plastic-sealed housing, and the first connecting portion being connected to the first end; The second stator core includes a second core body and a second connecting portion, the second connecting portion being connected to the outer periphery of the second core body and extending outside the second plastic-sealed housing, and the second connecting portion being connected to the second end.

3. The motor according to claim 2, characterized in that, The bracket includes a first positioning portion provided at the first end, and the first positioning portion is in positioning cooperation with the first connecting portion; The bracket includes a second positioning portion provided at the second end, and the second positioning portion is in positioning cooperation with the second connecting portion.

4. The motor according to claim 3, characterized in that, The first positioning portion is located on the side of the first connecting portion away from the first core body, and a first positioning surface is provided on the side of the first positioning portion facing the first connecting portion, and the first positioning surface is in positioning cooperation with the outer wall of the first connecting portion; and / or, The second positioning portion is located on the side of the second connecting portion away from the second core body, and a second positioning surface is provided on the side of the second positioning portion facing the second connecting portion, and the second positioning surface is in positioning cooperation with the outer wall of the second connecting portion.

5. The motor according to claim 2, characterized in that, The bracket is provided with a first receiving groove and a second receiving groove, the groove wall of the first receiving groove surrounding a part of the first stator assembly, the groove wall of the second receiving groove surrounding a part of the second stator assembly, the first end having a first end face, and the second end having a second end face; Wherein, the first connecting portion is located outside the first receiving groove and is connected to the first end face; the second connecting portion is located outside the second receiving groove and is connected to the second end face.

6. The motor according to claim 5, characterized in that, The groove wall of the first receiving groove forms a third positioning surface, the first stator core includes a first stator yoke portion, the outer periphery of the first stator yoke portion extends outside the first plastic-sealed housing and is located in the first receiving groove, and the outer periphery of the first stator yoke portion is in positioning cooperation with the third positioning surface; The groove wall of the second receiving groove is formed with a fourth positioning surface. The second iron core body includes a second stator yoke portion. The outer peripheral edge of the second stator yoke portion extends outside the second plastic encapsulation housing and is located within the second receiving groove. The outer peripheral edge of the second stator yoke portion is in positioning fit with the fourth positioning surface.

7. The motor according to claim 6, characterized in that, The outer peripheral edge of the first stator yoke portion is in interference fit with the third positioning surface; and / or, the outer peripheral edge of the second stator yoke portion is in interference fit with the fourth positioning surface.

8. The electric machine according to any one of claims 1 to 7, characterized in that, The motor further includes: A first shaft assembly, passing through the first stator assembly. The first shaft assembly includes a first driving shaft and a first bearing connected to the first driving shaft; A second shaft assembly, passing through the second stator assembly. The second shaft assembly includes a second driving shaft and a second bearing connected to the second driving shaft; A bearing chamber is provided inside the bracket. The bearing chamber includes a first installation groove and a second installation groove arranged along the axial direction of the motor. The first bearing is arranged in the first installation groove, and the second bearing is arranged in the second installation groove.

9. The motor according to claim 8, characterized in that, The first shaft assembly further includes a third bearing connected to the first driving shaft, and the second shaft assembly further includes a fourth bearing connected to the second driving shaft; The first stator assembly further includes a first support member. The first support member is provided with a third installation groove to support the third bearing. The first support member and the first stator iron core are integrally plastic encapsulated; The second stator assembly further includes a second support member. The second support member is provided with a fourth installation groove to support the fourth bearing. The second support member and the second stator iron core are integrally plastic encapsulated.

10. The electric machine according to any one of claims 1 to 7, characterized in that, The laundry treatment device includes a drum and a wind wheel. The first motor is used to be connected to the wind wheel, and the second motor is used to be connected to the drum; The bracket includes a main body and a support arm connected to the main body. A connecting shaft is provided at one end of the support arm away from the main body; the second motor includes a second driving shaft. The motor further includes a belt transmission assembly. 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 driving shaft.

11. The motor according to claim 10, characterized in that, The support arm and the main body are integrally formed.

12. A laundry treatment device, characterized in that, It includes a drum, a wind wheel, and a motor according to any one of claims 1 to 11, wherein the first motor is connected to the wind wheel, and the second motor is connected to the drum.

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