Motor and clothing treatment apparatus

Abstract

This motor comprises a stator and a rotor. The rotor may comprise: a holder comprising a base, and a sidewall extending from the perimeter thereof; a rotor body disposed on the inner side of the sidewall of the holder, and comprising a plurality of rotor cores and magnets; and a frame disposed on the inner side of the base of the holder.

Description

Motor and garment handling unit

[0001] The present disclosure relates to a motor and a garment handling device.

[0002] A garment handling device is a device for handling and / or managing garments. The garment handling device may include a washing machine and / or a dryer.

[0003] A washing machine is a device that mixes laundry, water, and detergent together to create friction between them, thereby washing the laundry. The cycles performed by a washing machine, regardless of the type of washing machine, can include a washing cycle, which supplies detergent and water to the tub and rotates the drum to wash the laundry; a rinsing cycle, which supplies water to the tub and rotates the drum to rinse the laundry; and a spin-drying cycle, which drains water from the tub and rotates the drum to remove moisture from the laundry.

[0004] A dryer is a device that dries an object using high-temperature, dry air. A dryer can dry an object by rotating a drum containing the object and allowing hot air to pass through the drum. The process performed by the dryer may include a drying process for drying the object.

[0005] One aspect of the present disclosure provides a motor having an improved structure and a garment treatment device including the same.

[0006] One aspect of the present disclosure provides a motor having a rotor in which deformation (e.g., shrinkage), damage, etc. are reduced and / or prevented, and a garment treatment device including the same.

[0007] One aspect of the present disclosure provides a motor having a rigidly reinforced rotor and a garment treatment device including the same.

[0008] One aspect of the present disclosure provides a motor and a garment treatment device including the same, which improve process efficiency and reduce manufacturing costs.

[0009] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0010] A motor according to one embodiment of the present disclosure may include a stator and a rotor configured to rotate relative to the stator from the outside of the stator. The rotor may include a holder configured to receive the stator, the holder including a base configured to cover one side of the stator and a side wall configured to extend from a periphery of the base and surround the stator; a rotor body disposed inside the side wall, the rotor body including a plurality of rotor cores and a plurality of magnets, wherein each of the rotor cores and each of the magnets is configured to be alternately arranged; and a frame disposed inside the base to support an periphery of the base connected to the side wall.

[0011] A garment treatment device according to one embodiment of the present disclosure may include: a tub; a drum rotatable within the tub; a motor for generating a driving force, the motor including a stator and a rotor configured to rotate by interacting with the stator; and a rotating shaft connecting the motor and the drum so as to transmit the driving force of the motor to the drum. The rotor may include a rotor body including a plurality of rotor cores and a plurality of magnets, each of the rotor cores and each of the magnets being configured to be alternately arranged along a rotational direction of the rotor. The rotor body may have a ring shape. The rotor may include a frame spaced apart from the rotor body. The frame may have a circular shape. The rotor may include a holder integrally formed with the rotor body and the frame through insert injection. The holder may include a first molding part corresponding to the rotor body, and a second molding part extending from the first molding part and corresponding to the frame.

[0012] FIG. 1 is a cross-sectional view of an example of a garment treatment device according to one embodiment.

[0013] FIG. 2 is a cross-sectional view of an example of a garment treatment device according to one embodiment.

[0014] Figure 3 illustrates a motor according to one embodiment.

[0015] Figure 4 is a perspective view of a rotor according to one embodiment.

[0016] Figure 5 is a cross-sectional perspective view taken along line A-A' shown in Figure 4.

[0017] Figure 6 is a perspective view of a portion of a rotor configuration according to one embodiment.

[0018] FIG. 7 is a perspective view showing a part of a rotor configuration according to one embodiment in a different direction from FIG. 6.

[0019] Figure 8 is an exploded view of a portion of a rotor according to one embodiment.

[0020] FIG. 9 is an exploded view showing a portion of a rotor according to one embodiment in a different direction from FIG. 8.

[0021] Figure 10 illustrates the interior of a rotor according to one embodiment.

[0022] Figure 11 is a cross-sectional view taken along line B-B' shown in Figure 10.

[0023] Figure 12 is an enlarged view of part C shown in Figure 11.

[0024] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0025] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0026] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0027] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0028] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0029] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0030] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0031] The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0032] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0033] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0034] Washing machines according to various embodiments can perform washing, rinsing, spin-drying, and drying processes. A washing machine is an example of a clothing treatment device, and the concept of a clothing treatment device encompasses devices that wash clothing (items to be washed, items to be dried), devices that dry clothing, and devices that can perform both washing and drying of clothing.

[0035] Washing machines according to various embodiments may include top-loading washing machines in which the laundry inlet for loading or removing laundry is provided facing upward, or front-loading washing machines in which the laundry inlet is provided facing forward. Washing machines according to various embodiments may include washing machines of other loading methods other than top-loading washing machines and front-loading washing machines.

[0036] In the case of a top-loading washing machine, laundry can be washed using a water current generated by a rotating body such as a pulsator. In the case of a front-loading washing machine, laundry can be washed by rotating the drum to repeatedly raise and lower the laundry. The front-loading washing machine may include a washing machine with a dryer that can dry the laundry contained inside the drum. The washing machine with a dryer may include a hot air supply device for supplying high-temperature air into the drum and a condensing device for removing moisture from the air discharged from the drum. For example, the washing machine with a dryer may include a heat pump device. The washing machine according to various embodiments may include a washing machine with a washing method other than the washing method described above.

[0037] Washing machines according to various embodiments may include a housing that accommodates various components therein. The housing may be provided in the form of a box with a laundry inlet formed on one side.

[0038] A washing machine may include a door for opening and closing the laundry compartment. The door may be rotatably mounted to the housing by a hinge. At least a portion of the door may be transparent or translucent to allow the interior of the housing to be viewed.

[0039] A washing machine may include a tub provided within a housing to store water. The tub may be provided in a generally cylindrical shape with a tub opening formed on one side, and may be positioned within the housing such that the tub opening corresponds to a laundry inlet.

[0040] The tub may be connected to the housing by a damper. The damper can absorb vibrations generated when the drum rotates, thereby reducing the vibrations transmitted to the housing.

[0041] A washing machine may include a drum configured to accommodate laundry.

[0042] The drum may be positioned within the tub such that the drum opening provided on one side corresponds to the laundry inlet and the tub opening. Laundry may be sequentially passed through the laundry inlet, the tub opening, and the drum opening to be accommodated within the drum or taken out from the drum.

[0043] The drum rotates within the tub and can perform each of the washing, rinsing, and / or dehydration operations. The cylindrical wall of the drum is formed with a number of perforations, allowing water stored in the tub to flow into or out of the drum.

[0044] A washing machine may include a drive device configured to rotate a drum. The drive device may include a drive motor and a rotating shaft for transmitting driving force generated by the drive motor to the drum. The rotating shaft may be connected to the drum by penetrating the tub.

[0045] The driving device can rotate the drum forward or backward to perform each operation according to the washing, rinsing, and / or dehydration, or drying cycle.

[0046] A washing machine may include a water supply device configured to supply water to a tub. The water supply device may include a water supply pipe and a water supply valve provided on the water supply pipe. The water supply pipe may be connected to an external water source. The water supply pipe may extend from the external water source to a detergent supply device and / or the tub. Water may be supplied to the tub via the detergent supply device. Water may be supplied to the tub without passing through the detergent supply device.

[0047] The water supply valve can open or close the water supply line in response to an electrical signal from the control unit. The water supply valve can allow or block the supply of water to the tub from an external water source. The water supply valve may include, for example, a solenoid valve that opens and closes in response to an electrical signal.

[0048] A washing machine may include a detergent supply device configured to supply detergent to a tub. The detergent supply device may include a manual detergent supply device that requires a user to add detergent for each wash cycle, and an automatic detergent supply device that stores a large amount of detergent and automatically supplies a predetermined amount of detergent during a wash cycle. The detergent supply device may include a detergent compartment for storing detergent. The detergent supply device may be configured to supply detergent into the tub during a water supply process. Water supplied through a water supply pipe may be mixed with detergent via the detergent supply device. The water mixed with detergent may be supplied into the tub. Detergent is used as a comprehensive term for pre-wash detergent, main wash detergent, fabric softener, bleach, etc., and the detergent compartment may be divided into a pre-wash detergent storage area, a main wash detergent storage area, a fabric softener storage area, and a bleach storage area.

[0049] A washing machine may include a drain device configured to discharge water contained in a tub to the outside. The drain device may include a drain pipe extending from the bottom of the tub to the outside of the housing, a drain valve provided on the drain pipe to open and close the drain pipe, and a pump provided on the drain pipe. The pump may pump water in the drain pipe to the outside of the housing.

[0050] The washing machine may include a control panel positioned on one side of the housing. The control panel may provide a user interface for a user to interact with the washing machine. The user interface may include at least one input interface and at least one output interface.

[0051] At least one input interface can convert sensory information received from a user into an electrical signal.

[0052] At least one input interface may include a power button, an operation button, a course selection dial (or a course selection button), and a wash / rinse / spin setting button. The at least one input interface may include, for example, a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and / or a microphone.

[0053] At least one output interface can visually or audibly convey information related to the operation of the washing machine to the user.

[0054] For example, at least one output interface may transmit information related to the washing cycle and operating time of the washing machine, as well as washing / rinsing / spin settings to the user. Information related to the operation of the washing machine may be output via a screen, indicator, voice, etc. At least one output interface may include, for example, a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, a speaker, etc.

[0055] The washing machine may include a communication module for communicating with external devices via wires and / or wirelessly.

[0056] The communication module may include at least one of a short-range communication module or a long-range communication module.

[0057] The communication module can transmit data to or receive data from external devices (e.g., a server, a user device, and / or a home appliance). For example, the communication module can establish communication with a server, a user device, and / or a home appliance, and transmit and receive various data.

[0058] To this end, the communication module may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between external devices, and the performance of communication through the established communication channel. According to one embodiment, the communication module may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with the external device via a first network (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0059] The short-range wireless communication module may include, but is not limited to, a Bluetooth communication module, a BLE (Bluetooth Low Energy) communication module, a near field communication module, a WLAN (Wi-Fi) communication module, a Zigbee communication module, an infrared (IrDA, infrared Data Association) communication module, a WFD (Wi-Fi Direct) communication module, an UWB (ultrawideband) communication module, an Ant+ communication module, a microwave (uWave) communication module, etc.

[0060] The long-distance communication module may include a communication module that performs various types of long-distance communication and may include a mobile communication unit. The mobile communication unit transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network.

[0061] In one embodiment, the communication module can communicate with external devices such as a server, a user device, and other home appliances through a peripheral access point (AP). The access point (AP) can connect a local area network (LAN) to which the washing machine or the user device is connected to a wide area network (WAN) to which the server is connected. The washing machine or the user device can be connected to the server through the wide area network (WAN). The control unit can control various components of the washing machine, such as a drive motor and a water inlet valve. The control unit can control various components of the washing machine to perform at least one cycle, including water supply, washing, rinsing, and / or spin-drying, based on a user input. For example, the control unit can control the drive motor to adjust the rotation speed of the drum, or control the water inlet valve of the water supply device to supply water to the tub.

[0062] The control unit may include hardware such as a CPU or memory, and software such as a control program. For example, the control unit may include an algorithm for controlling the operation of components within the washing machine, at least one memory storing program-type data, and at least one processor performing the aforementioned operation using data stored in the at least one memory. The memory and the processor may each be implemented as separate chips. The processor may include one or more processor chips or one or more processing cores. The memory may include one or more memory chips or one or more memory blocks. Additionally, the memory and the processor may be implemented as a single chip.

[0063] Various embodiments are described below with reference to the attached drawings.

[0064] FIG. 1 is a cross-sectional view of an example of a garment treatment device according to one embodiment. Referring to FIG. 1, a washing machine (1) will be described as an example of a garment treatment device. The washing machine (1) corresponds to a front-loading washing machine.

[0065] As illustrated in FIG. 1, a washing machine (1) may include a housing (10), a tub (20) provided inside the housing (10), and a drum (30) provided inside the tub (20). The washing machine (1) may include a motor (50) provided to rotate the drum (30).

[0066] A washing machine (1) may include a housing (10) configured to accommodate various components therein. The housing (10) may form the exterior of the washing machine (1). The housing (10) may have a box shape with one portion open.

[0067] The washing machine (1) may include an inlet (11) formed to allow access to the interior of the drum (30). Laundry may be fed into the drum (30) or taken out from the drum (30) through the inlet (11). The inlet (11) may open approximately toward the front. For example, the inlet (11) may include an opening formed in the housing (10), an opening formed in the tub (20), and an opening formed in the drum (30).

[0068] The washing machine (1) may include a door (40) for opening and closing the inlet (11). The door (40) may be rotatably mounted to the housing (10) by a hinge. At least a portion of the door (40) may be made transparent or translucent so as to allow the interior of the housing (10) to be visible.

[0069] A washing machine (1) may include a tub (20) provided inside a housing (10) to store water. The tub (20) may be placed inside the housing (10). The tub (20) may be supported inside the housing (10). The tub (20) may have a roughly cylindrical shape with one side open.

[0070] The tub (20) can be elastically supported from the housing (10) by a damper (70). The damper (70) can connect the housing (10) and the tub (20). The damper (70) can be provided to absorb vibration energy between the tub (20) and the housing (10) to attenuate the vibration when the vibration generated when the drum (30) rotates is transmitted to the tub (20) and / or the housing (10).

[0071] A washing machine (1) may include a drum (30) provided to accommodate laundry. The drum (30) may be rotatably provided inside a tub (20). The drum (30) may perform washing, rinsing, dehydration, and / or drying while rotating inside the tub (20). The drum (30) may include a hole (31) connecting the internal space of the drum (30) and the internal space of the tub (20). The drum (30) may have a generally cylindrical shape with one side open. At least one lifter (33) may be installed on the inner circumference of the drum (30) so that laundry can be raised and lowered when the drum (30) rotates.

[0072] The washing machine (1) may include a driving device for driving a drum (30). The driving device may rotate the drum (30). The driving device may be arranged to rotate the drum (30) forward or backward to perform washing, rinsing, and / or dehydration, or drying operations.

[0073] The driving device may include a motor (50) that generates driving force. A detailed description of the motor (50) will be described later.

[0074] The driving device may include a rotating shaft (60) for transmitting driving force generated from a motor (50) to a drum (30). The rotating shaft (60) may connect the drum (30) and the motor (50). One end of the rotating shaft (60) may be connected to the drum (30), and the other end of the rotating shaft (60) may be connected to the motor (50).

[0075] A bearing housing (21) may be provided on the rear portion of the tub (20) to rotatably support a rotating shaft (60). For example, the bearing housing (21) may be provided from an aluminum alloy and may be inserted into the rear portion of the tub (20) when the tub (20) is injection molded.

[0076] The washing machine (1) may include a water supply device (12). The water supply device (12) may supply water to the tub (20). The water supply device (12) may be located on the upper side of the tub (20). The water supply device (12) may include a water supply pipe (13) and a water supply valve (14) provided in the water supply pipe (13). The water supply pipe (13) may be connected to an external water source. The water supply pipe (13) may extend from the external water source to a detergent supply device (90) and / or the tub (20). Water may be supplied to the tub (20) via the detergent supply device (90). Water may be supplied to the tub (20) without passing through the detergent supply device (90).

[0077] The water supply valve (14) can open or close the water supply pipe (13) in response to an electrical signal from the control unit. The water supply valve (14) can allow or block the supply of water from an external water source to the tub (20). The water supply valve (14) may include, for example, a solenoid valve that opens and closes in response to an electrical signal.

[0078] The washing machine (1) may include a detergent supply device (90) configured to supply detergent to the tub (20). The detergent supply device (90) may be configured to supply detergent into the tub (20) during the water supply process. Water supplied through the water supply pipe (13) may be mixed with detergent via the detergent supply device (90). The water mixed with the detergent may be supplied into the tub (20). The detergent may include not only laundry detergent but also a rinse agent, a deodorant, a sterilizer, or an air freshener for a dryer. The detergent supply device (90) may be connected to the tub (20) through a supply pipe (18).

[0079] The washing machine (1) may include a drain device (80). The drain device (80) may be configured to discharge water contained in the tub (20) to the outside. The drain device (80) may include a drain pump (83) for pumping water in the tub (20). The drain device (80) may include a connecting hose (81) that connects the drain port (22) of the tub (20) and the drain pump (83) so that water inside the tub (20) can flow into the drain pump (83). The drain device (80) may include a drain hose (84) that guides water pumped by the drain pump (83) to the outside of the housing (10). The drain device (80) may include a drain valve (82) provided in the connecting hose (81) to open and close the connecting hose (81).

[0080] The washing machine (1) may provide a user interface device for interaction between a user and the washing machine (1). The user interface device may include at least one input interface and at least one output interface.

[0081] FIG. 2 is a cross-sectional view of an example of a garment treatment device according to one embodiment. Referring to FIG. 2, a washing machine (1a) will be described as an example of a garment treatment device. The washing machine (1a) corresponds to a top-loading washing machine.

[0082] As illustrated in Fig. 2, a washing machine (1a) may include a housing (10a), a tub (20a) provided inside the housing (10a), and a drum (30a) provided inside the tub (20a). The washing machine (1a) may include a motor (50) provided to rotate the drum (30a).

[0083] A washing machine (1a) may include a housing (10a) configured to accommodate various components therein. The housing (10a) may form the exterior of the washing machine (1a). The housing (10a) may have a box shape with one portion open.

[0084] The washing machine (1a) may include an inlet (11a) formed to allow access to the interior of the drum (30a). Laundry may be fed into or taken out of the drum (30a) through the inlet (11a). The inlet (11a) may open approximately upward. For example, the inlet (11a) may include an opening formed in the housing (10a), an opening formed in the tub (20a), and an opening formed in the drum (30a).

[0085] The washing machine (1a) may include a door (40a) for opening and closing the inlet (11a). The door (40a) may be rotatably mounted to the housing (10a) by a hinge. At least a portion of the door (40a) may be transparent or translucent to allow the interior of the housing (10a) to be visible.

[0086] The washing machine (1a) may include a tub (20a) provided inside the housing (10a) to store water. The tub (20a) may be placed inside the housing (10a). The tub (20a) may be supported inside the housing (10a). The tub (20a) may have a roughly cylindrical shape with one side open.

[0087] The tub (20a) can be elastically supported from the housing (10a) by a damper (70a). The damper (70a) can connect the housing (10a) and the tub (20a). The damper (70a) can be provided to absorb vibration energy between the tub (20a) and the housing (10a) to attenuate the vibration when the vibration generated when the drum (30a) rotates is transmitted to the tub (20a) and / or the housing (10a).

[0088] A washing machine (1a) may include a drum (30a) configured to accommodate laundry. The drum (30a) may be rotatably provided within a tub (20a). The drum (30a) may perform washing, rinsing, dehydration, and / or drying while rotating within the tub (20a). The drum (30a) may include a hole (31a) connecting the internal space of the drum (30a) and the internal space of the tub (20a). The drum (30a) may have a generally cylindrical shape with one side open.

[0089] A balancing unit (36a) may be installed on the upper portion of the drum (30a) to resolve the load imbalance caused by laundry. The balancing unit (36a) includes a housing having an annular channel and a ball or fluid mass that is movably provided inside the channel, and the ball or fluid moves in accordance with the rotation of the drum (30a) to resolve the load imbalance of the drum (30a).

[0090] A pulsator (37a) is rotatably installed at the bottom of the drum (30a) to generate a washing water stream. Laundry can be washed by the washing water stream generated by the pulsator (37a).

[0091] The washing machine (1a) may include a driving device for driving a drum (30a) and a pulsator (37a). The driving device may be configured to rotate the drum (30a). The driving device may be configured to rotate the pulsator (37a).

[0092] The driving device may include a motor (50) that generates driving force. A detailed description of the motor (50) will be described later.

[0093] The driving device may include a rotating shaft (60) for transmitting driving force generated from a motor (50) to a drum (30a) and a pulsator (37a). The rotating shaft (60) may connect the drum (30a) and the motor (50).

[0094] For example, the rotating shaft (60) may include a dehydration shaft (61) provided to transmit the driving force of the motor (50) to the drum (30a). The rotating shaft (60) may include a washing shaft (62) provided to transmit the driving force of the motor (50) to the pulsator (37a). The dehydration shaft (61) may be formed to have a hollow portion, and the washing shaft (62) may be provided in the hollow portion of the dehydration shaft (61).

[0095] The washing machine (1a) may include a clutch device (63) that connects or disconnects the motor (50) and the spindle shaft (61). When the clutch device (63) disconnects the spindle shaft (61) and the motor (50), power is transmitted only to the washing shaft (62), so that only the pulsator (37a) rotates. When the clutch device (63) connects the spindle shaft (61) and the motor (50), power is transmitted to both the spindle shaft (61) and the washing shaft (62), so that the drum (30a) and the pulsator (37a) can rotate simultaneously.

[0096] When only the pulsator (37a) rotates, a washing water flow is generated by the rotation of the pulsator (37a), and the laundry rotates by the generated washing water flow, causing friction with the drum (30a), so that the laundry can be washed. When the pulsator (37a) and the drum (30a) rotate simultaneously, the laundry inside the drum (30a) rotates, causing the moisture in the laundry to be removed by centrifugal force, so that the laundry can be dehydrated.

[0097] The washing machine (10a) may include a water supply device (12a). The water supply device (12a) may supply water to the tub (20a). The water supply device (12a) may be located above the tub (20a). The water supply device (12a) may include a water supply pipe and a water supply valve provided in the water supply pipe. The water supply pipe may be connected to an external water source. The water supply pipe may extend from the external water source to the detergent supply device (90a) and / or the tub (20a). Water may be supplied to the tub (20a) via the detergent supply device (90a). Water may be supplied to the tub (20a) without passing through the detergent supply device (90a).

[0098] The water supply valve can open or close the water supply pipe in response to an electrical signal from the control unit. The water supply valve can allow or block the supply of water from an external water source to the tub (20a). The water supply valve may include, for example, a solenoid valve that opens and closes in response to an electrical signal.

[0099] The washing machine (10a) may include a detergent supply device (90a) configured to supply detergent to the tub (20a). The detergent supply device (90a) may be configured to supply detergent into the tub (20a) during the water supply process. Water supplied through the water supply pipe may be mixed with detergent via the detergent supply device (90a). The water mixed with detergent may be supplied into the tub (20a). The detergent may include not only laundry detergent but also a rinse agent, a deodorant, a sterilizer, or an air freshener for a dryer.

[0100] The washing machine (10a) may include a drainage device (80a). The drainage device (80a) may be configured to discharge water stored in the tub (20a) to the outside. A drainage port (22a) may be formed at the bottom of the tub (20a) to drain water stored in the tub (20a) to the outside of the tub (20a). A drainage hose (84a) may be connected to the drainage port (22a), and a drainage valve (82a) may be provided on the drainage hose (84a) to open and close the drainage hose (84a).

[0101] The washing machine (1a) may provide a user interface device for interaction between a user and the washing machine (1a). The user interface device may include at least one input interface and at least one output interface.

[0102] Meanwhile, while FIGS. 1 and 2 illustrate a washing machine (1; 1a) as an example of a clothing treatment device, the present disclosure is not limited thereto. For example, the clothing treatment device may be a dryer or a washing machine / dryer. Furthermore, the details of the motor (50) described below are not limited to clothing treatment devices and can be applied to various home appliances.

[0103] Figure 3 illustrates a motor according to one embodiment.

[0104] A motor (50) may include a stator (100) and a rotor (200). The motor (50) may include a stator (100) and a rotor (200) rotatable relative to the stator (100). The rotor (200) may be arranged to rotate by electromagnetic interaction with the stator (100). The rotor (200) may be arranged to rotate outside the stator (100). The motor (50) may generate driving force. The motor (50) may convert electrical power into rotational power.

[0105] The stator (100) may include a stator core (110). The stator core (110) may include a ring-shaped core body and a plurality of teeth (111) protruding radially outward from the core body. The plurality of teeth (111) may be arranged along the circumferential direction of the core body. Each tooth (111) may be magnetized to one of the N pole and the S pole by a magnetic field formed by power supplied to the coil (130).

[0106] The stator (100) may include an insulator (120) that is arranged to surround the stator core (110). The insulator (120) may be made of a material having electrical insulation properties.

[0107] The stator (100) may include a coil (130) wound around an insulator (120). The coil (130) may be wound around the insulator (120) at positions corresponding to a plurality of teeth (111). When current is supplied to the coil (130), the coil (130) may form a magnetic field.

[0108] The stator (100) may include a coupling portion (140). For example, the coupling portion (140) may include a hole through which a fastening member (not shown) (e.g., a screw) may be fastened. For example, the coupling portion (140) may be coupled to the rear of the tub (20). For example, the coupling portion (140) may be coupled to a bearing housing (21, see FIG. 1) of the tub (20).

[0109] The rotor (200) may be arranged to surround the stator (100). The rotor (200) may include a receiving space (214) for accommodating the stator (100). As an example, the motor (50) may be an outer rotor type motor configured to rotate so that the rotor (200) surrounds the stator (100). The outer diameter of the stator (100) may be smaller than the inner diameter of the rotor (200). However, the present disclosure is not limited to the above-described example.

[0110] Fig. 4 is a perspective view of a rotor according to one embodiment. Fig. 5 is a cutaway perspective view taken along line A-A' shown in Fig. 4. Fig. 6 is a perspective view of a portion of a rotor according to one embodiment. Fig. 7 is a perspective view illustrating a portion of a rotor according to one embodiment from a different direction than Fig. 6. Fig. 8 is an exploded view of a portion of a rotor according to one embodiment. Fig. 9 is an exploded view illustrating a portion of a rotor according to one embodiment from a different direction than Fig. 8.

[0111] The rotor (200) may include a holder (210). The holder (210) may form the overall appearance of the rotor (200). The holder (210) may be configured to receive the stator (100). The holder (210) may be configured to support and / or secure components of the rotor (200) (e.g., the rotor body (220), the frame (230), and / or the bush (240)).

[0112] The holder (210) may include a base (211) and a side wall (212).

[0113] The base (211) may be provided to cover one side of the stator (100).

[0114] The side wall (212) may be provided to surround the stator (100). The side wall (212) may be provided to be arranged on the outside of the stator (100). For example, the side wall (212) may be provided to extend along the circumferential direction of the stator (100) to cover the stator (100). The side wall (212) may extend from the edge of the base (211). The side wall (212) may extend in a first direction (D1) from the edge of the base (211). As the side wall (212) extends from the base (211) in the first direction (D1), an accommodation space (214) may be formed. The side wall (212) may be arranged to surround the stator (100). Meanwhile, the first direction (D1) may include a direction in which the motor (50) faces the drum (30, 30a). The first direction (D1) may include the direction in which the motor (50) faces the tub (20, 20a).

[0115] The holder (210) may have a roughly cylindrical shape with one side open. The base (211) may have a roughly circular shape. The side wall (212) may have a roughly ring shape.

[0116] The side wall (212) may include an inner side wall (212a) facing the rotational axis (S) of the rotor (200). The side wall (212) may include an outer side wall (212b) provided on the opposite side of the inner side wall (212a). The side wall (212) may include a connecting wall (212c) connecting the inner side wall (212a) and the outer side wall (212b).

[0117] The base (211) may be provided to correspond to the rotor body (220) to be described later. The side wall (212) may be provided to correspond to the frame (230) to be described later.

[0118] The holder (210) may be formed by insert injection. The holder (210) may be formed integrally with the components of the rotor (200) through an insert injection process. The holder (210) may be formed by curing molten resin. The holder (210) may be referred to as an injection-molded product (210). The side wall (212) may be referred to as a first molding part (212), and the base (211) may be referred to as a second molding part (211). The first molding part (212) may correspond to the rotor body (220), and the second molding part (211) may extend from the first molding part (212) and correspond to the frame (230). A detailed description regarding the insert injection of the rotor (200) will be described later.

[0119] The rotor (200) may include a rotor body (220). The rotor body (220) may include a plurality of rotor cores (221) and a plurality of magnets (222). The rotor body (220) may have a roughly ring shape.

[0120] Each rotor core (221) and each magnet (222) may be arranged alternately. Each rotor core (221) and each magnet (222) may be arranged alternately along the rotational direction of the rotor (200). Each rotor core (221) and each magnet (222) may be arranged alternately along the circumferential direction of the rotor (200). A plurality of rotor cores (221) may be arranged spaced apart from each other along the circumferential direction of the rotor (200). A plurality of magnets (222) may be arranged spaced apart from each other along the circumferential direction of the rotor (200). The rotor cores (221) may be arranged between the magnets (222). The magnets (222) may be arranged between the rotor cores (221). For example, one magnet (222a) among the plurality of magnets may be placed between adjacent first rotor cores (221a) and second rotor cores (221b) among the plurality of rotor cores (see FIG. 8). Similarly, one rotor core among the plurality of rotor cores may be placed between adjacent first magnets and second magnets among the plurality of magnets.

[0121] A plurality of rotor cores (221) and a plurality of magnets (222) can be combined. For example, a plurality of rotor cores (221) and a plurality of magnets (222) can be configured as an assembly.

[0122] A plurality of rotor cores (221) may be provided to support a plurality of magnets (222). The plurality of rotor cores (221) may be provided to form a path (magnetic path) for magnetic flux generated from the plurality of magnets (222). The plurality of rotor cores (221) may enhance the electromagnetic force generated by the electromagnetic interaction between the rotor (200) and the stator (100).

[0123] A plurality of magnets (222) may be arranged to form a magnetic field. The plurality of magnets (222) may be arranged to electromagnetically interact with the stator (100). The rotor (200) may rotate as a result of the interaction between the magnetic field generated by the coil (130) of the stator (100) and the magnetic field generated by the plurality of magnets (222) of the rotor (200). The plurality of magnets (222) may be arranged such that the south poles and north poles are alternately arranged along the circumferential direction.

[0124] For example, each of the magnets (222) may include a ferrite magnet or a magnet containing rare earth elements such as neodymium or samarium. However, the present disclosure is not limited to the above-described examples, and each of the magnets (220) may be provided with magnets of various materials.

[0125] The rotor body (220) may correspond to the side wall (212) of the holder (210). The rotor body (220) may be placed inside the side wall (212) of the holder (210). The rotor body (220) may be formed integrally with the holder (210) through insert injection.

[0126] Meanwhile, in this document, the meaning of "disposed within" a first component of a second component may include that at least a portion of the first component is located within the second component. Accordingly, the meaning of "disposed within" a first component of a second component may include not only that the entire first component is completely covered by the second component, but also that a portion of the first component is exposed from the second component.

[0127] A portion of each rotor core (221) may be provided to be exposed from the side wall (212) of the holder (210). A portion of each rotor core (221) may be provided to be exposed from the inner side wall (212a) of the holder (210). A portion of each rotor core (221) may be a portion that is not covered by the holder (210). A portion of each rotor core (221) may be arranged to face the rotation axis (S). As the rotor core (221) is exposed from the holder (210), the magnetic field formed in the magnet (222) can interact more easily with the magnetic field formed in the stator (100). The rotor core (221) may not interfere with the electromagnetic force generated in the magnet (222).

[0128] A portion of each rotor core (221) may be provided to be connected to the inner wall (212a). A surface of each rotor core (221) facing the rotation axis (S) may be provided to be flush with the inner wall (212a). Each rotor core (221) may be connected to the inner wall (212a) without a step within a predetermined error range. As a result, the air gap between the stator (100) and the rotor (200) may be maintained constant. As the air gap between the stator (100) and the rotor (200) is maintained constant, vibration and / or noise of the motor (50) may be reduced, and the efficiency of the motor (50) may be increased.

[0129] The rotor (200) may include a frame (230). The frame (230) may correspond to the base (211) of the holder (210). The frame (230) may be disposed within the base (211) of the holder (210). By disposing the frame (230) within the base (211) of the holder (210), deformation or damage of the holder (210) may be prevented. The frame (230) may be formed integrally with the holder (210) through insert injection, and may prevent deformation (e.g., shrinkage) or damage of the holder (210). A detailed description thereof will be provided later.

[0130] The frame (230) may be arranged to be spaced apart from the rotor body (220) (see FIGS. 11 and 12). The frame (230) may be spaced apart from the rotor body (220) in a second direction (D2). The second direction (D2) may be a direction opposite to the first direction (D1). The frame (230) may be arranged to not come into contact with the rotor body (220).

[0131] The frame (230) may include a plate (231) and a plate edge (232).

[0132] The frame (230) may have a roughly circular shape. The plate (231) may have a roughly disc shape. The plate edge (232) may have a roughly ring shape.

[0133] The plate edge (232) may be formed on the outer surface of the plate (231). The plate edge (232) may extend radially outward from the plate (231). The plate edge (232) may be provided to be bent toward the rotor body (220). The plate edge (232) may be provided to be bent approximately along the first direction (D1). The frame (230) may have a shape in which an edge portion of the frame (230) is bent inward. For example, the outermost portion of the plate edge (232) may be provided so as not to face radially outward of the frame (230). With this shape, when the rotor (200) rotates, the frame (230) may be disposed inside the base (211) of the holder (210) to support an edge portion of the base (211). For example, when the rotor (200) rotates, a force that opposes the force that tends to move away from the center of rotation of the rotor (200) may be applied to the plate edge (232). That is, when the rotor (200) rotates, the frame (230) can support the holder (210) so that the holder (210) is not damaged by a strong centrifugal force. Consequently, the rigidity of the rotor (200) can be increased.

[0134] The frame (230) may include an opening (233). The opening (233) may be formed in the center of the frame (230). The opening (233) may be formed by penetrating the plate (231) of the frame (230). A bush (240) may be placed within the opening (233).

[0135] The frame (230) may include a first frame hole (234). The first frame hole (234) may be formed by penetrating the plate (231) of the frame (230).

[0136] As described above, the holder (210) may be formed by hardening molten resin during an insert injection process. The molten resin may be arranged to pass through the first frame hole (234) of the frame (230). The molten resin may cover the frame (230) while passing through the first frame hole (234). The first frame hole (234) may be arranged to correspond to a gate for injecting the molten resin into the cavity. The first frame hole (234) may be referred to as a gate hole (234).

[0137] For example, a plurality of first frame holes (234) may be provided, and the plurality of first frame holes (234) may be spaced apart from each other. For example, the plurality of first frame holes (234) may be arranged in a predetermined pattern.

[0138] The frame (230) may include a second frame hole (235). The second frame hole (235) may be formed by penetrating the plate (231) of the frame (230).

[0139] A fixing member (e.g., a fixing pin) for fixing the rotor (200) when the rotor (200) is magnetized can be inserted into the second frame hole (235). The second frame hole (235) can be referred to as a first fixing hole (235). The holder (210) can include a second fixing hole (213) that is provided to overlap the second frame hole (235). The first fixing hole (235) and the second fixing hole (213) can be in communication. When the rotor (200) is magnetized, the fixing member can be inserted into the first fixing hole (235) and the second fixing hole (213) to fix the rotor (200).

[0140] For example, a plurality of second frame holes (235) may be provided, and the plurality of second frame holes (235) may be spaced apart from each other. For example, the plurality of second frame holes (235) may be arranged in a predetermined pattern.

[0141] The rotor (200) may include a bush (240). The bush (240) may be positioned within the opening (233) of the frame (230). The bush (240) may be provided to form a rotational axis (S) of the rotor (200). The center of the bush (240) may form the rotational axis (S). The bush (240) may transmit the rotational force generated in the rotor (200) to the rotational shaft (60). The bush (240) may be coupled with the rotational shaft (60, see FIGS. 1 and 2). The bush (240) may include a bush hole (241) into which the rotational shaft (60) may be inserted. For example, a serration may be formed inside the bush hole (241).

[0142] The bush (240) can be formed integrally with the holder (210) through insert injection. The bush (240) can be fixed to the base (211) of the holder (210).

[0143] Fig. 10 illustrates the interior of a rotor according to one embodiment. Fig. 11 is a cross-sectional view taken along line B-B' shown in Fig. 10. Fig. 12 is an enlarged view of portion C shown in Fig. 11.

[0144] Referring to FIG. 10, the rotor (200) may include a rotor body (220), a frame (230), and a bush (240). More specifically, in FIG. 10, to show how the frame (230) is arranged inside the base (211) of the holder (210), the base (211) is drawn with a dotted line (e.g., the base (211) is drawn transparently), and the frame (230) arranged inside the base (211) is drawn with a solid line.

[0145] The rotor (200) may include a holder (210). The holder (210) may support a rotor body (220), a frame (230), and a bush (240). The holder (210) may fix the rotor body (220), the frame (230), and the bush (240). The holder (210) may be provided to cover the rotor body (220), the frame (230), and the bush (240).

[0146] The rotor (200) can be manufactured through an insert injection process. The holder (210), the rotor body (220), and the frame (230) can be integrally formed through insert injection. The holder (210), the rotor body (220), the frame (230), and the bush (240) can be integrally formed through insert injection.

[0147] For example, a rotor body (220), a frame (230), and a bush (240) may be placed within a cavity of a mold. Molten resin may be injected into the cavity of the mold through a gate. The resin injected into the cavity may fill the rotor body (220), the frame (230), and the surroundings of the bush (240). At this time, the resin may be arranged to cover the frame (230) while passing through the first frame hole (234) of the frame (230). The resin filled in the cavity may be hardened while being cooled. The hardened resin may form a holder (210). The holder (210) may be formed integrally with the rotor body (220), the frame (230), and / or the bush (240) through insert injection. The base (211) of the holder (210) can be formed integrally with the frame (230) and the bush (240). The base (211) of the holder (210) can support and / or fix the frame (230) and the bush (240). The side wall (212) of the holder (210) can be formed integrally with the rotor body (220). The side wall (212) of the holder (210) can support and / or fix the rotor body (220).

[0148] Typically, when manufacturing a rotor using insert injection molding, the molded material that constitutes the rotor may become deformed. For example, if the thickness of the molded material is inconsistent and varies significantly, or if the molded material is thick, the molded material may shrink as it cools. This shrinkage can cause the rotor's magnetic field to become unstable due to changes in its dimensions. For example, when the rotor rotates, a strong centrifugal force may be generated, causing multiple magnets and multiple rotor cores to be ejected from the molded material, potentially deforming or damaging the molded material. To prevent the molded material from scattering and enhance its strength, an additional ring member press-fitted onto the outside of the molded material may be provided. However, the ring member may be made of a relatively expensive, non-magnetic stainless steel (SUS) material to prevent magnetic flux leakage. After the insert injection process, an additional process of press-fitting the ring member onto the outside of the molded material may be required. This increases the manufacturing cost of the rotor and may reduce its process efficiency. Additionally, as the ring member is pressed into the outside of the injection molded product, the outer diameter of the rotor can increase.

[0149] In contrast, according to one embodiment of the present disclosure, the rotor (200) may include a frame (230). The frame (230) may be provided to prevent deformation or damage of the holder (210). The frame (230) may be provided to prevent flying of the holder (210). The frame (230) may be provided to reinforce the rigidity of the rotor (200).

[0150] For example, the frame (230) may include a material having a strength higher than that of the resin. For example, the frame (230) may include a material having a thermal expansion coefficient lower than that of the resin. As an example, the frame (230) may include a metal material.

[0151] The frame (230) may be placed inside the base (211) of the holder (210). The frame (230) may be formed integrally with the holder (210) through an insert injection process. The resin may form the holder (210) by covering the frame (230) and then curing and cooling. The frame (230) may support the holder (210) while forming a kind of skeleton inside the holder (210). As a result, the holder (210) may not be deformed by the frame (230). The holder (210) may not shrink even after the insert injection process due to the frame (230).

[0152] The frame (230) may be arranged inside the base (211) to support the edge of the base (211) connected to the side wall (212). The frame (230) may have a shape in which an edge portion of the frame (230) is bent. That is, the frame (230) may include a plate edge (232). The plate edge (232) may be bent toward the rotor body (220). In general, when the rotor rotates, the edge portion of the rotor may receive the greatest centrifugal force, which may cause damage to the injection-molded material constituting the rotor (e.g., cracks). According to the present disclosure, the plate edge (232) of the frame (230) may be arranged to correspond to the edge portion of the base (211) of the holder (210). The plate edge (232) of the frame (230) may be arranged to support a portion connected to the side wall (212) of the base (211). The frame (230) may be provided with a shape that is bent inward from approximately the outer edge portion by having a plate edge (232), so that a force opposite to the force that tends to deviate from the center of rotation when the rotor (200) rotates may be applied to the plate edge (232). That is, the plate edge (232) of the frame (230) may be arranged inside the base (211) of the holder (210) to reduce / offset the force that tends to deviate from the center of rotation of the rotor (200). Accordingly, even if a strong centrifugal force is generated when the rotor (200) rotates, the holder (210) may not be damaged by the frame (230). Ultimately, the frame (230) may help secure the rigidity of the rotor (200).

[0153] The rotor (200) may not include a ring member. The process of press-fitting the ring member into the injection molded product may be omitted. The frame (230) may be manufactured from a metal material that is relatively cheaper than the material of the ring member. This reduces the manufacturing cost of the rotor (200) and increases the manufacturing efficiency of the rotor (200). In addition, since the ring member is not press-fitted onto the outside of the holder (210), the outer diameter of the rotor (200) may not increase.

[0154] Referring to FIG. 11, the diameter (D) of the frame (230) according to one embodiment may be smaller than the outer diameter (O) of the rotor body (220) and larger than the inner diameter (I) of the rotor body (220). The outer diameter (O) of the rotor body (220) may refer to the diameter of the outermost edge of the rotor body (220). The inner diameter (I) of the rotor body (220) may refer to the diameter of the innermost edge of the rotor body (220). The edge of the frame (230) may be provided to correspond between the outermost edge of the rotor body (220) and the innermost edge of the rotor body (220). At this time, the frame (230) and the rotor body (220) may be concentric. The center of the frame (230) and the center of the rotor body (220) may be placed on the same line as the rotation axis (S).

[0155] For example, when the diameter (D) of the frame (230) is larger than the outer diameter (O) of the rotor body (220), the area where the frame (230) and the rotor body (220) overlap increases, and the frame (230) may affect the magnetic field formed in the rotor body (220). For example, when the diameter (D) of the frame (230) is larger than the outer diameter (O) of the rotor body (220), the frame (230) may weaken the magnetism of the plurality of magnets (230). For example, when the diameter (D) of the frame (230) is larger than the outer diameter (O) of the rotor body (220), the size and weight of the rotor (200) may increase. For example, when the diameter (D) of the frame (230) is smaller than the inner diameter (I) of the rotor body (220), the effect of the frame (230) reinforcing the rigidity of the holder (210) may be reduced. Accordingly, in order for the frame (230) to support the holder (210) without affecting the magnetic field of the rotor body (220), the diameter (D) of the frame (230) may be smaller than the outer diameter (O) of the rotor body (220) and larger than the inner diameter (I) of the rotor body (220).

[0156] Referring to FIG. 12, a frame (230) according to one embodiment may include a plate (231) and a plate edge (232).

[0157] For example, the plate edge (232) may include a first extension portion (232a). The first extension portion (232a) may be formed to be bent from an edge of the plate (231) and inclined relative to the plate (231). The first extension portion (232a) may be bent from the plate (231) toward the rotor body (220). The first extension portion (232a) may be bent in a first direction (D1) from the plate (231). The first extension portion (232a) may include a shape that tapers as it moves away from the rotor body (220). The first extension portion (232a) may be provided to taper along the second direction (D2). The inclination angle (α) between the plate (231) and the first extension portion (232a) may be approximately 10 degrees or more.

[0158] For example, the plate edge (232) may include a second extension (232b). The second extension (232b) may be bent from the edge of the first extension (232a) and may extend toward the rotor body (220). The second extension (232b) may extend in a first direction (D1) from the first extension (232a).

[0159] For example, the radius of curvature of each bent portion of the plate edge (232) may be approximately 2 mm or more.

[0160] However, the present disclosure is not limited to the above-described examples, and there is no limitation on the shape of the plate edge (232) as long as the plate edge (232) includes at least one portion bent toward the rotor body (220).

[0161] Referring to FIG. 12, a frame (230) according to one embodiment may be spaced apart from a rotor body (220) along a second direction (D2). A gap (g) may be formed between the frame (230) and the rotor body (220).

[0162] For example, if no gap (g) is formed between the frame (230) and the rotor body (220) or if the gap (g) is very small, the frame (230) may affect the magnetic field formed in the rotor body (220). For example, if no gap (g) is formed between the frame (230) and the rotor body (220) or if the gap (g) is very small, the frame (230) may take away the magnetism of the plurality of magnets (230). To prevent this, the frame (230) and the rotor body (220) may be arranged so as not to contact each other. For example, a resin (i.e., a material of the holder (210)) may be filled between the frame (230) and the rotor body (220).

[0163] For example, if the gap (g) between the frame (230) and the rotor body (220) is very large, the size and weight of the rotor (200) may increase. Accordingly, the frame (230) and the rotor body (220) may be spaced apart within a predetermined range.

[0164] For example, the gap (g) may be approximately 0.5 mm or more and approximately 10 mm or less. However, the above-described numerical range is merely exemplary, and the present disclosure is not limited thereto. It goes without saying that the numerical range of the gap (g) may vary depending on the type of the rotor (200), the size of each component of the rotor (200), the material of each component of the rotor (200), etc.

[0165] A motor (50) according to one embodiment of the present disclosure may include a stator (100) and a rotor (200) configured to rotate outside the stator (100). The rotor (200) may include a holder (210) configured to accommodate the stator (100). The holder (210) may include a base (211) and a side wall (212). The base (211) may be configured to cover one side of the stator (100). The side wall (212) may be configured to extend from a periphery of the base (211) and surround the stator (100). The rotor (200) may include a rotor body (220) including a plurality of rotor cores (221) and a plurality of magnets (222). Each rotor core (221) and each magnet (222) may be configured to be alternately arranged. The rotor body (220) may be arranged inside the side wall (212). The rotor (200) may include a frame (230) arranged inside the base (211). The frame (230) may be provided to support the edge of the base (211) connected to the side wall (212).

[0166] The holder (210), the rotor body (220), and the frame (230) can be formed integrally by insert injection.

[0167] The above rotor body (220) may have a ring shape. The above frame (230) may have a circular shape.

[0168] The side wall (212) may extend from the edge of the base (211) in a first direction (D1). The frame (230) may be spaced apart from the rotor body (220) in a second direction (D2) opposite to the first direction (D1).

[0169] The diameter (D) of the frame (230) may be smaller than the outer diameter (O) of the rotor body (220). The diameter (D) of the frame (230) may be larger than the inner diameter (I) of the rotor body (220).

[0170] The above frame (230) may include a plate (231) and a plate edge (232). The plate edge (232) may extend radially outward from the plate (231) and be arranged to be bent toward the rotor body (220).

[0171] The plate edge (232) may include an extension (232a) that is bent from the edge of the plate (231) and formed to be inclined with respect to the plate (231). The extension (232a) may include a shape that tapers as it moves away from the rotor body (220).

[0172] The above extension portion may be a first extension portion (232a). The plate edge (232) may further include a second extension portion (232b) that is bent from the edge of the first extension portion (232a) and extends toward the rotor body (220).

[0173] The frame (230) may include an opening (233) formed in the center of the frame (230). The rotor (200) may further include a bush (240) arranged to be placed within the opening (233) of the frame (230). The bush (240) may be arranged to form a rotational axis (S) of the rotor (200).

[0174] The rotor body (220), the frame (230), the bush (240), and the holder (210) can be formed integrally by insert injection.

[0175] The above holder (210) can be formed by hardening molten resin.

[0176] The above frame (230) may include a gate hole (234) through which the molten resin passes.

[0177] The above frame (230) may include a first fixing hole (235), and the holder (210) may include a second fixing hole (213) provided to overlap with the first fixing hole (235).

[0178] The above frame (230) may include a metal material.

[0179] The side wall (212) of the holder (210) may include an inner wall (212a) facing the rotation axis (S) of the rotor (200), an outer wall (212b) provided on the opposite side of the inner wall, and a connecting wall (212c) connecting the inner wall and the outer wall. A portion of each rotor core (221) may be provided to be exposed from the inner wall (212a) and connected to the inner wall (212a).

[0180] A garment treatment device (1; 1a) according to one embodiment of the present disclosure may include: a tub (20; 20a); a drum (30; 30a) rotatable within the tub; a motor (50) that generates driving force, the motor (50) including a stator (100) and a rotor (200) configured to rotate by interacting with the stator (100); and a rotating shaft (60) that connects the motor (50) and the drum (30; 30a) so as to transmit the driving force of the motor (50) to the drum (30; 30a). The rotor (200) may include a rotor body (220) including a plurality of rotor cores (221) and a plurality of magnets (222). Each rotor core (221) and each magnet (222) of the rotor body (220) may be configured to be alternately arranged along the rotational direction of the rotor (200). The rotor body (220) may have a ring shape. The rotor (200) may include a frame (230) spaced apart from the rotor body (220) and having a circular shape. The rotor (200) may include a holder (210) formed integrally with the rotor body (220) and the frame (230) through insert injection. The holder (210) may include a first molding part (212) corresponding to the rotor body (220). The holder (210) may include a second molding part (211) extending from the first molding part (212) and corresponding to the frame (230).

[0181] The above frame (230) may include a plate (231); and a plate edge (232) extending radially outward from the plate (231) and arranged to be bent toward the rotor body (220).

[0182] The plate edge (232) may include a first extension portion (232a) that is formed to be inclined relative to the plate (231) by being bent from the edge of the plate (231) and has a shape that tapers as it moves away from the rotor body (220); and a second extension portion (232b) that is bent from the edge of the first extension portion (232a) and extends toward the rotor body (220).

[0183] The first molding portion (212) may extend in a first direction (D1) from the edge of the second molding portion (211). The frame (230) may be spaced apart from the rotor body (220) in a second direction (D2) opposite to the first direction (D1).

[0184] The diameter (D) of the above frame (230) may be smaller than the outer diameter (O) of the rotor body (220) and larger than the inner diameter (I) of the rotor body (220).

[0185] According to the invention, the motor (50) may include a rotor (200) having an improved structure. The motor (50) applied to a garment treatment device (1; 1a) and other home appliances may include a rotor (200) having an improved structure.

[0186] According to the concept of the present disclosure, the rotor (200) may include a frame (230). The holder (210) and the frame (230) may be integrally formed through insert injection. The frame (230) may be provided to prevent deformation (e.g., shrinkage) and / or damage of the holder (210). The frame (230) may reinforce the strength of the holder (210). As a result, the lifespan of the rotor (200) may be increased.

[0187] According to the concept of the present disclosure, the manufacturing efficiency of the rotor (200) can be increased. The rotor (200) does not require a ring member. This simplifies the manufacturing process of the rotor (200) and reduces the manufacturing cost of the rotor (200).

[0188] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0189] The above illustrates and describes specific embodiments. However, the invention is not limited to the above-described embodiments, and those skilled in the art will readily appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. Stator; and A rotor is provided to rotate with respect to the stator outside the stator; The above rotor, A holder configured to accommodate the stator, the holder comprising a base configured to cover one side of the stator, and a side wall configured to extend from a rim of the base and surround the stator; A rotor body disposed inside the side wall, comprising a plurality of rotor cores and a plurality of magnets, wherein each rotor core and each magnet are arranged alternately; and A motor including a frame disposed inside the base to support the edge of the base connected to the side wall.

2. In paragraph 1, A motor in which the holder, the rotor body, and the frame are integrally formed by insert injection.

3. In paragraph 1, The above rotor body includes a ring shape, The above frame is a motor including a circular shape.

4. In paragraph 1, The side wall extends in a first direction from the edge of the base, A motor in which the frame is spaced apart from the rotor body in a second direction opposite to the first direction.

5. In paragraph 3, A motor in which the diameter of the above frame is smaller than the outer diameter of the above rotor body and larger than the inner diameter of the above rotor body.

6. In paragraph 3, The above frame is, plate; and A motor comprising a plate edge extending radially outward from the plate and arranged to be bent toward the rotor body.

7. In paragraph 6, The above plate edge, A motor comprising an extension portion formed to be inclined relative to the plate by being bent from the edge of the plate, and having a shape that tapers as it moves away from the rotor body.

8. In paragraph 7, The above extension is a first extension, The above plate edge, A motor further comprising a second extension portion that is bent from the edge of the first extension portion and extends toward the rotor body.

9. In paragraph 1, The above frame includes an opening formed in the center of the frame, A motor wherein the rotor is arranged to be positioned within the opening of the frame and further includes a bush arranged to form a rotational axis of the rotor.

10. In paragraph 9, A motor in which the rotor body, the frame, the bush, and the holder are integrally formed by insert injection.

11. In paragraph 2, The above holder is a motor formed by hardening of molten resin.

12. In paragraph 11, The above frame is a motor including a gate hole through which the molten resin passes.

13. In paragraph 1, The above frame includes a first fixing hole, A motor in which the holder includes a second fixing hole arranged to overlap the first fixing hole.

14. In paragraph 1, The above frame is a motor including a metal material.

15. In paragraph 1, The side wall of the above holder, The inner wall facing the rotation axis of the rotor, An outer wall provided on the opposite side of the inner wall, Including a connecting wall connecting the inner wall and the outer wall, A motor in which a portion of each of the rotor cores is exposed from the inner wall and connected to the inner wall.

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