Clothing processing apparatus

Abstract

The present invention provides a drum having a drum body providing a space for receiving clothes, a front cover forming a front surface of the drum body, a rear cover forming a rear surface of the drum body, and a drum insertion port provided to pass through the front cover; a fixed panel provided at a position separated from the rear cover and provided with a guide hole; an attachment body inserted into the guide hole and capable of reciprocating in a direction perpendicular to the fixed panel, and divided into a first region facing the direction in which the rear cover is located and a second region located opposite the first region based on the fixed panel; a head provided in the first region and preventing the attachment body from being separated from the fixed panel; and a head fixed to the second region. The clothing treatment device includes a housing, an input shaft having one end located outside the housing and the other end located inside the housing, an output shaft having one end fixed to the rear cover through a fixed panel and the other end located inside the housing, a power transmission section located inside the housing and provided with a gear section that transmits the rotational motion of the input shaft to the output shaft; a stator fixed to the second region or the housing and forming a rotating magnetic field; a rotor to which one end of the input shaft is fixed and which rotates due to the rotating magnetic field; and a first displacement limiting section provided in the second region to be located between the fixed panel and the housing and limiting the displacement of the housing moving toward the fixed panel.

Description

Technical Field

[0001] The present invention relates to a clothing treatment apparatus.

Background Art

[0002] A clothing treatment apparatus is a general term for a washing machine that washes clothing (objects to be washed or dried), a dryer that dries clothing, and an apparatus that can perform both washing and drying of clothing.

[0003] A washing machine is generally provided with a tub in which water is stored, a washing drum provided inside the tub for receiving clothing, and a drive unit (washing drive unit) for rotating the washing drum. A dryer is generally provided with a drying drum for receiving clothing, a drive unit (drying drive unit) for rotating the drying drum, and a heat exchange unit for supplying air to the drying drum to remove moisture from the clothing.

[0004] The washing drive unit is generally provided with a stator that forms a rotating magnetic field, a rotor that rotates by the rotating magnetic field, and a rotating shaft that penetrates the tub and connects the washing drum and the rotor. The drying drive unit is generally provided with a motor, a pulley fixed to the rotating shaft of the motor, and a belt (power transmission unit) that connects the rotational movement of the pulley to the drying drum.

[0005] The washing drive unit is provided such that the rotating shaft of the motor connects the washing drum and the rotor. For washing and dehydrating clothing, it is necessary for the washing drive unit to control the rotation speed of the washing drum to be high or change the rotation direction of the washing drum. However, when the rotating shaft of the motor is directly connected to the washing drum and the rotor, there is an effect that the rotation speed and rotation direction of the washing drum can be easily controlled.

[0006] On the one hand, in the conventional drying drive unit, it is common for a power transmission part such as a belt to connect the rotation axes of the drying drum and the motor. Since the drying machine has little need to maintain a high rotation speed of the drying drum or change the rotation direction of the drying drum, the drying drum may be rotated by a power transmission part such as a belt. However, if the rotation speed and rotation direction of the drying drum can be changed, the movement of the clothes inside the drying drum can be controlled, so it is expected that the drying time can be shortened and the drying performance can be improved in the drying machine as well.

[0007] Among conventional drying machines, there is one equipped with a drying drive unit in which a rotor and a drying drum are connected to a speed reducer (power transmission part) (Korean Patent Publication No. 10-2020-0065931). This drying drive unit is provided such that an input shaft connected to the rotor and an output shaft connected to the drying drum form the same axis, and it is expected to shorten the drying time and improve the drying performance. However, it is difficult to assemble the drying drum and the output shaft of the speed reducer. When assembling the drying drum and the output shaft, there is a disadvantage that the durability of the speed reducer and the drying drum decreases (damage to the bolts provided in the speed reducer, damage to the output shaft, damage to the drying drum, etc.).

Summary of the Invention

Problems to be Solved by the Invention

[0008] An object of the present invention is to solve the problem of providing a clothing treatment apparatus capable of minimizing a decrease in the durability of a power transmission part.

[0009] Another object of the present invention is to solve the problem of providing a clothing treatment apparatus in which the assembly of the output shaft of the power transmission part and the drum is easy.

Means for Solving the Problems

[0010] The present invention provides a drum body that provides a space for receiving clothing, a front cover that forms the front surface of the drum body, a rear cover that forms the rear surface of the drum body, and a drum provided with a drum inlet that penetrates the front cover, a fixed panel provided at a position separated from the rear cover and having a guide hole, and a mounting body that is inserted into the guide hole and can reciprocate along a direction perpendicular to the fixed panel and is divided into a first region facing the direction in which the rear cover is located and a second region located on the opposite side of the first region with reference to the fixed panel, a head provided in the first region to prevent the mounting body from separating from the fixed panel, a housing fixed to the second region, an input shaft having one end located outside the housing and the other end located inside the housing, an output shaft having one end fixed to the rear cover through the fixed panel and the other end located inside the housing, a power transmission unit provided inside the housing and having a gear unit that transmits the rotational movement of the input shaft to the output shaft, a stator fixed to the second region or the housing to form a rotating magnetic field, a rotor having one end of the input shaft fixed thereto and rotating by the rotating magnetic field, and a first displacement limiting unit provided in the second region so as to be located between the fixed panel and the housing and limiting the displacement of the housing moving toward the fixed panel; and provides a clothing processing apparatus including the same.

[0011] The first displacement limiting unit is provided with rubber.

[0012] One end of the rubber is fixed to the fixed panel, and the other end of the rubber is fixed to the housing.

[0013] The first displacement limiting unit is provided with a spring.

[0014] One end of the spring is fixed to the fixed panel, and the other end of the spring is fixed to the housing.

[0015] The number of the mounting bodies is provided with two or more, and the mounting bodies are arranged so as to be separated by the same angle around the fixed panel through hole.

[0016] The number of the first displacement limiting units is set to be equal to the number of the mounting bodies.

[0017] The clothing processing apparatus further includes a second displacement restricting portion that is provided in the first region, is located between the head and the fixed panel, and restricts displacement in a direction in which the housing moves away from the fixed panel.

[0018] The second displacement restricting portion is provided with rubber or a spring.

[0019] The clothing processing apparatus includes a rear cover through hole provided so as to penetrate the rear cover, a first fastening body fixed to the rear cover, closing the rear cover through hole, a second fastening body located inside the drum, a fastening portion through hole provided in the second fastening body, and a shaft fastening portion provided with a connecting body that is inserted into the rear cover through hole and connects the first fastening body and the second fastening body, a fastening portion through hole provided so as to penetrate the shaft fastening portion and into which one end of the output shaft is inserted, and a nut that passes through the fastening portion through hole and is coupled to one end of the output shaft that has passed through the fastening portion through hole to fix the output shaft to the shaft fastening portion.

[0020] The diameter of the connecting body is set to decrease from the first fastening body toward the second fastening body.

[0021] The clothing processing apparatus further includes a fastening portion cover that is located inside the drum, closes the rear cover through hole, and prevents the shaft fastening portion from being exposed inside the drum.

[0022] The clothing processing apparatus includes a cover through hole provided so as to penetrate the fastening portion cover, a fastening groove provided in the output shaft, and a bolt that is inserted into the cover through hole, fixed to the fastening groove, and fixes the fastening portion cover to the output shaft.

Advantages of the Invention

[0023] The present invention provides a clothing processing apparatus capable of minimizing a decrease in the durability of a speed reducer.

[0024] Further, the present invention provides a clothing processing apparatus in which assembly of the output shaft of the speed reducer and the drum is easy.

Brief Description of the Drawings

[0025]

Figure 1

[0026]

Figure 2

[0027]

Figure 3

[0028]

Figure 4

[0029]

Figure 5

[0030]

Figures 6 - 7

[0031]

Figures 8 - 10

DETAILED DESCRIPTION OF THE INVENTION

[0032] Hereinafter, embodiments of the clothing treatment apparatus will be described in detail with reference to the accompanying drawings.

[0033] FIG. 1 shows an example of a clothing treatment apparatus 100, and the clothing treatment apparatus 100 includes a cabinet 1 and a drum 2 that is rotatably provided inside the cabinet and provides a space for receiving clothing (an object to be washed or dried). As shown in FIG. 2, inside the cabinet 1, there is provided a drying section 3 that supplies high-temperature drying air (air at a temperature higher than room temperature, air with a higher dryness than the dryness of indoor air) to the drum 2 to remove moisture from the clothing.

[0034] As shown in FIG. 2, the cabinet 1 includes a front panel 11 that forms the front surface of the clothing treatment apparatus, and a base panel 17 that forms the bottom surface of the clothing treatment apparatus. The front panel 11 is provided with an inlet 111 that communicates with the drum 2, and the inlet 111 is provided so as to be closed by a door 113.

[0035] The front panel 11 is provided with a control panel 115. The control panel 115 is provided with an input unit for inputting control commands from the user, and a display unit for outputting information such as control commands selectable by the user. The input unit is provided to include a power supply request unit for requesting power supply to the clothing treatment apparatus, a course input unit for enabling the user to select a desired course from a plurality of courses, and an execution request unit for requesting the start of the course selected by the user.

[0036] The inside of the drum 2 is provided in a hollow cylindrical shape. As shown in FIG. 3, the drum 2 includes a cylindrical drum body 21 with open front and rear surfaces, a front cover 22 that forms the front surface of the drum body 21, and a rear cover 23 that forms the rear surface of the drum body 21.

[0037] The front cover 22 is provided with a drum inlet 221 that communicates the inside of the drum body 21 with the outside, and the rear cover 23 is provided with an air inlet 233 that allows outside air to flow into the drum body 21.

[0038] The drum body 21 is further provided with a lifter 24. The lifter 24 is a means for causing the clothes to repeatedly rise and fall inside the drum. The lifter 24 is provided by a plate extending from the front cover 22 toward the rear cover 23 and protruding from the drum body 21 toward the rotation center of the drum 2 (protruding from the circumferential surface of the drum toward the rotation center of the drum).

[0039] When the clothing treatment apparatus 100 is provided as an apparatus only for drying clothes, the drum 2 may not be provided with a drum through-hole that penetrates the drum body 21 in order to communicate the inside of the drum with the outside of the drum.

[0040] As shown in FIG. 4, the above-described drum 2 is rotatably fixed to at least one of the main body first support portion 12 and the main body second support portion 15. FIG. 4 shows an example in which the rear cover 23 is rotatably fixed to the main body second support portion 15 via a power transmission portion 6 described later, and the front cover 22 is rotatably connected to the main body first support portion 12.

[0041] The main body first support portion 12 is fixed to the cabinet 1 and is provided as a support panel 121 located between the front panel 11 and the front cover 22. The support panel 121 is provided so as to be located between the front panel 11 and the front cover 22 by being fixed to the base panel 17. In this case, the rear surface of the front panel 11 (the surface facing the support panel) is fixed to the support panel 121, and the lower end is fixed to the base panel 17.

[0042] The support panel 121 is provided to include a support panel through hole 122, a drum connector 123 that connects the support panel through hole 122 and the drum inlet 221, and a panel connector 125 that connects the support panel through hole 122 and the inlet 111. The support panel through hole 122 is provided so as to penetrate the support panel 121 and is a means for communicating the inlet 111 and the drum inlet 221.

[0043] The drum connector 123 is provided as a pipe fixed to the rear surface of the support panel 121 (the surface facing the drum inlet among the spaces provided by the support panel). One end of the drum connector 123 is provided so as to surround the support panel through hole 122, and the free end of the drum connector 123 is provided so as to support the front cover 22. That is, the free end of the drum connector 123 may be inserted into the drum inlet 221, or may be provided so as to contact the free end of the front cover 22 that forms the drum inlet 221 (the edge of the drum inlet). FIG. 4 shows an example in which the free end of the drum connector 123 contacts the free end of the front cover 22.

[0044] The panel connector 125 is provided as a pipe fixed to the front surface of the support panel 121 (the surface facing the front panel among the spaces provided by the support panel). One end of the panel connector 125 is provided to surround the support panel through-hole 122, and the other end of the panel connector 125 is provided to be connected to the input port 111. Therefore, the clothes supplied to the input port 111 move to the drum body 21 via the panel connector 125, the support panel through-hole 122, the drum connector 123, and the drum input port 221.

[0045] The support panel 121 is provided with an exhaust port 126 for discharging the air inside the drum 2 to the outside of the drum, and a filter 127 is detachably fixed to the exhaust port 126. The filter 127 may have any structure as long as it can filter foreign substances from the air moving from the drum 2 to the exhaust port 126.

[0046] The support panel 121 may further be provided with a drum support portion 128 for preventing the drum 2 from sagging. The drum support portion is fixed to the support panel 121 and is provided as a roller that rotatably supports the drum 2. FIG. 4 shows that the drum support portion 128 is provided to support the front cover 22, but the drum support portion 128 may be provided to support the circumferential surface of the drum body 21.

[0047] The main body second support portion 15 is provided as a fixed panel 151 fixed to the cabinet 1 so as to be located at a point separated from the rear cover 23. FIG. 5 shows an example in which the fixed panel 151 is fixed to the base panel 17 and forms the rear surface (the rear surface of the cabinet) of the clothing treatment apparatus 100.

[0048] The fixed panel 151 is provided with a drive unit mounting groove 152 that provides a space for mounting the motor 5. The drive unit mounting groove 152 is provided as a groove in which the fixed panel 151 is recessed and bent toward the rear cover 23 of the drum. The fixed panel 151 is provided with a fixed panel through-hole 153 through which a shaft (output shaft) for rotating the drum 2 passes, and the fixed panel through-hole 153 is located inside the drive unit mounting groove 152.

[0049] As described above, when the drum 2 is composed of a drum body 21, a front cover 22 fixed to the drum body, and a rear cover 23 fixed to the drum body, the rigidity of the drum is higher than that of a structure in which the opened front and rear surfaces of the drum body 21 are rotatably connected to the support panel 121 and the fixed panel 151, respectively. When the rigidity of the drum is increased, deformation of the drum body 21 during rotation of the drum can be minimized, which can minimize the problem that clothing is caught in the space between the drum body and the support panel and the space between the drum body and the fixed panel during deformation of the drum body (the load on the motor can be minimized).

[0050] As shown in FIG. 4, the drying unit 3 is provided to include an exhaust passage 31 connected to the exhaust port 126, a supply passage 32 that guides the air supplied from the exhaust passage 31 to the drum body 21, and a heat exchange unit 34 provided inside the exhaust passage 31 that sequentially dehumidifies and heats the air.

[0051] The exhaust passage 31 is provided to include a first duct 311 connected to the exhaust port 126, a second duct 312 connected to the supply passage 32, and a third duct 313 that connects the first duct 311 and the second duct 312. The third duct 313 is fixed to the base panel 17.

[0052] The heat exchange unit 34 can be provided as various devices as long as it can sequentially dehumidify and heat the air flowing into the exhaust passage 31. FIG. 4 shows an example in which the heat exchange unit 34 is provided as a heat pump. That is, the heat exchange unit 34 includes a first heat exchanger (heat absorption unit) 341 that removes moisture from the air flowing into the exhaust passage 31, a second heat exchanger (heat generation unit) 343 provided inside the exhaust passage 31 that heats the air that has passed through the heat absorption unit 341, and a fan 349 that moves the air discharged from the drum 2 to the supply duct 32 after the air has sequentially passed through the heat absorption unit and the heat generation unit.

[0053] The heat absorption part 341 and the heat generation part 343 are sequentially arranged along the air movement direction and are connected to each other via a refrigerant pipe 348 that forms a refrigerant circulation flow path. The refrigerant moves along the refrigerant pipe 348 by a compressor 345 located outside the exhaust flow path 31, and the refrigerant pipe 348 is provided with a pressure regulator 347 for adjusting the pressure of the refrigerant.

[0054] As shown in FIG. 5, the air inlet 233 provided in the rear cover 23 of the drum is provided by arranging a plurality of holes so as to surround the center of the rear cover 23 (the rotation center of the drum). In this case, the supply flow path 32 is provided in the fixed panel 151 and includes a supply duct 321 that forms a movement path of the air discharged from the second duct 312, a first flow path forming part 323 that guides the air inside the supply duct 321 to the air inlet 233, and a second flow path forming part 324.

[0055] The supply duct 321 is provided so as to form a flow path (air movement path) by bending the fixed panel 151 in a direction away from the rear cover 23. Further, the supply duct 321 is provided in a ring shape surrounding the drive part mounting groove 152, and the discharge port of the second duct 312 is provided so as to be connected to the circumferential surface of the supply duct 321.

[0056] The first flow path forming part 323 is provided so as to surround the outer circumferential surface of the ring formed by the air inlet 233 (the circumferential surface having the longer diameter among the two circumferential surfaces of the ring), and the second flow path forming part 324 is provided so as to surround the inner circumferential surface of the ring formed by the air inlet 233 (the circumferential surface having the shorter diameter among the two circumferential surfaces of the ring).

[0057] The first flow path forming part 323 and the second flow path forming part 324 may be fixed to the rear cover 23 or may be fixed to the supply duct 321. FIG. 5 shows an example in which the flow path forming parts 323 and 324 are fixed to the rear cover 23.

[0058] In the case of Fig. 5, the free end of the first flow path forming portion 323 surrounds the outer circumferential surface of the flow path (ring-shaped flow path) formed by the supply duct 321, and the free end of the second flow path forming portion 324 is provided so as to surround the inner circumferential surface of the flow path formed by the supply duct 321. The first flow path forming portion 323 and the second flow path forming portion 324 are made of rubber, felt, or the like.

[0059] The motor 5 that generates the power required for the rotation of the drum 2 is provided to include a stator 51 that forms a rotating field and is located in the drive unit mounting groove 152, and a rotor 52 that rotates by the rotating field. The rotational movement of the rotor 52 is transmitted to the drum 2 via the power transmission unit 6 fixed to the fixed panel 151, and the stator 51 is fixed to at least one of the fixed panel 151 or the power transmission unit 6.

[0060] In order to prevent the motor 5 located in the drive unit mounting groove 512 from being exposed to the outside (by preventing the motor from being exposed to the external environment, for improving the durability of the motor and preventing safety accidents), the fixed panel 151 is further provided with a cover panel 19 that prevents the motor 5 from being exposed to the outside. Further, the cover panel 19 is provided in a shape that can also prevent the supply duct 321 from being exposed to the outside (a shape that surrounds the supply duct). This is to minimize the heat escaping from the outside of the supply duct 321 and to prevent safety accidents that may occur when the body comes into contact with the supply duct 321.

[0061] The stator 51 is provided to include a ring-shaped core 511 having a through hole (core through hole) in the center, a plurality of support rods 513 protruding radially from the outer circumferential surface of the core 511, an insulator 512 that insulates the core and the support rods, and a coil 514 provided so as to surround the support rods 513.

[0062] The rotor 52 includes a disk-shaped rotor body 521, a rotor circumferential surface 522 that extends from the edge of the rotor body 521 toward the fixed panel 515 and forms a space for receiving the stator 51, and a plurality of permanent magnets 523 that are fixed to the rotor circumferential surface 522 such that N poles and S poles are alternately exposed.

[0063] FIG. 6 shows an example of a power transmission unit 6 that connects the rotor 52 and the rear cover 23 of the drum.

[0064] The power transmission unit 6 includes a housing H fixed to the fixed panel 151, an input shaft 64 rotatably fixed to the bottom surface of the housing H (the surface facing the direction where the rotor is located), an output shaft 65 rotatably fixed to the upper surface of the housing H (the surface facing the direction where the fixed panel is located), and a gear unit G provided inside the housing and configured to transmit the rotational movement of the input shaft 64 to the output shaft 65.

[0065] One end of the input shaft 64 is fixed to the rotor 52 and the other end is provided as a shaft located inside the housing H. One end of the output shaft 65 is fixed to the rear cover 23 and the other end is provided as a shaft located inside the housing H. The gear unit G is provided to connect one end of the input shaft 64 located inside the housing H and one end of the output shaft 65 located inside the housing.

[0066] The housing H is preferably fixed to the fixed panel 151 and located in a space (the external space of the cabinet) separated from the space (the internal space of the cabinet) where the drum 2 is located. This is to improve the durability of the power transmission unit 6 by minimizing the transfer of heat inside the cabinet (heat released from the drum and the drying section) to the inside of the housing H.

[0067] The input shaft 64 is coupled to the rotor body 521 via a shaft fixing portion 54. The shaft fixing portion 54 is provided to include a shaft fixing hole 543 to which one end of the input shaft 64 is fixed.

[0068] The output shaft 65 is inserted into the fixed panel through-hole 153 and connected to the rear cover 23. The rear cover 23 is provided with a shaft fastening portion 25 for fixing the output shaft 65. This is to disperse the stress acting on the center of the rear cover 23 during the rotation of the output shaft 65. The specific structure of the shaft fastening portion 25 will be described later.

[0069] To minimize the deformation of the fixed panel 151, the housing H is fixed to the fixed panel 151 via the transmission bracket 61 and the housing fastening portion 612.

[0070] As shown in FIG. 5, the transmission bracket 61 is provided with a bracket through-hole 611 through which the output shaft 65 passes. The housing fastening portion 612 is provided as a bolt for connecting the housing H and the transmission bracket 61. The transmission bracket 61 may be made of the same material as the fixed panel 151, or may be made of a material having a higher strength than that of the fixed panel 151.

[0071] As shown in FIG. 6, the housing H is provided in a cylindrical shape with a hollow interior, and includes a housing body 62 having an open hole on the surface facing the fixed body 151, and a housing cover 63 fixed to the housing body 62 and closing the open hole.

[0072] The housing body 62 is provided to form a receiving space 621 for mounting the gear portion G. The receiving space 621 is formed via a housing base 62a to which the input shaft 64 is fixed, and a housing circumferential surface 62b extending from the edge of the housing base 62a toward the housing cover 63.

[0073] As shown in FIG. 7, the housing body 62 is provided with an input shaft support portion 625 extending from the housing base 62a toward the rotor 52. The input shaft support portion 625 is provided as a pipe surrounding an input shaft through-hole 626 passing through the housing body 62.

[0074] The input shaft 64 inserted into the input shaft through-hole 626 is rotatably fixed to the input shaft support portion 625 via the input shaft bearings 628 and 629. The input shaft bearings are provided to include a first input shaft bearing 628 fixed to the input shaft support portion 625 and a second input shaft bearing 629 fixed inside the input shaft through-hole 626 and positioned between the first input shaft bearing 628 and the rotor 52.

[0075] The housing cover 63 may have any shape as long as it can open and close the open hole provided in the housing body 62. FIG. 7 shows an example in which the housing cover 63 is provided as a disc-shaped cover body 631. The housing cover 63 is provided to be fixed to the housing body 62 via a cover fixing plate 623 provided on the housing circumferential surface 62b.

[0076] The housing cover 63 is provided to include an output shaft through-hole 632 penetrating the cover body 631 and a pipe-shaped output shaft support portion 635 extending from the cover body 631 toward the fixed panel 151 and surrounding the output shaft through-hole 632.

[0077] The output shaft support portion 635 is provided with output shaft bearings 638 and 639 for rotatably fixing the output shaft 65 to the output shaft through-hole 632.

[0078] The output shaft bearings are provided to include a first output shaft bearing 638 fixed to the output shaft support portion 635 and positioned inside the output shaft through-hole 631 and a second output shaft bearing 639.

[0079] The gear portion G is provided to include a ring gear 66 fixed to the housing circumferential surface 62b and positioned in the receiving space 621, a driving gear 69 fixed to the input shaft 64 and positioned inside the receiving space 621, a cage 67 positioned inside the receiving space 622 and having the other end of the output shaft 65 fixed thereto, and a driven gear 68 rotatably fixed to the cage 67 and connecting the driving gear 69 and the ring gear 66.

[0080] The ring gear 66 is provided to include a gear body 661 fixed to the circumferential surface 62b of the housing, a gear body through-hole 663 provided so as to penetrate the gear body, and gear teeth 665 provided along the inner circumferential surface of the gear body.

[0081] The cage 67 is located inside the gear body through-hole 663, includes a first base 671 to which one end of the output shaft 65 is fixed, a second base 672 located inside the gear body through-hole 663 and having a base through-hole 673 provided at the center, and a connecting shaft 675 that connects the first base and the second base and forms the rotation axis of the driven gear 68. Since the output shaft 65 is fixed to the first base 671, whether the output shaft 65 rotates is determined according to whether the cage 67 rotates.

[0082] The driven gear 68 is provided as a plurality of gears rotatably fixed to the connecting shaft 675. In the drawings, an example is shown in which the driven gear is provided with a first driven gear 681, a second driven gear 682, and a third driven gear 683.

[0083] The input shaft 64 is inserted into the base through-hole 673, forms a coaxial relationship with the output shaft 65, and the gear teeth provided on the driving gear 69 are located in the space formed between the driven gears and mesh with the teeth of the driven gears 682, 682, 683.

[0084] As shown in FIG. 8, the power transmission unit 6 and the stator 51 described above are fixed to the fixed panel 151 by the mounting portion 7.

[0085] The mounting portion 7 is provided to include a mounting body 71 inserted into a guide hole 154 provided in the fixed panel 151. The mounting body 71 is inserted into the guide hole 154 and is provided as a bar that reciprocates along a direction orthogonal to the fixed panel 151.

[0086] The mounting body 71 inserted into the guide hole 154 is divided into a first region 71a facing the direction located in the space where the rear cover 23 is provided and a second region 71b located on the opposite side of the first region (the space where the rotor is provided).

[0087] The mounting portion 7 is fixed to the mounting body 71 and is provided to include a head 711 located in the first region 71a. The head 711 is a means for preventing the mounting body 71 from being separated from the fixed panel 151 when the mounting body 71 moves in the direction where the rotor 52 is located. The head 711 is provided as a disk having a diameter longer than the diameter of the guide hole 154.

[0088] The above-described power transmission portion 6 is fixed to the second region 71b of the mounting body. As shown in FIG. 9, the housing cover 63 is provided with a mounting body fixing portion 637, and the mounting body fixing portion 637 is fixed to the second region 71b of the mounting body. A plurality (the same number as the mounting body) of mounting body fixing portions 637 are provided along the circumferential surface of the cover body 631.

[0089] In this case, the stator 51 may be fixed to the housing H or may be fixed to the second region 71b of the mounting body. FIG. 9 shows an example in which the stator 51 is fixed to the free end of the mounting body 71 by a stator fixing bolt that connects the insulator 512 and the mounting body 71. A fixing hole 713 to which the stator fixing bolt is fastened is provided at the free end of the mounting body.

[0090] On the other hand, the mounting portion 7 is provided with a displacement limiting portion 72 (first displacement limiting portion) that limits the displacement of the housing H moving toward the fixed panel 151. The first displacement limiting portion 72 is provided in the second region 71b of the mounting body and is provided so as to be located between the fixed panel 151 and the housing H.

[0091] The first displacement limiting portion 72 can be provided with various structures as long as the displacement of the housing H moving toward the fixed panel 151 can be limited. FIG. 9 shows that the first displacement limiting portion 72 is provided with an elastic body such as rubber, and FIG. 10 shows that the first displacement limiting portion 72 is provided with a spring.

[0092] The first displacement limiting part 72 in Fig. 9 is provided such that a ring-shaped elastic body surrounds the circumferential surface of the mounting body 71, and is characterized by being located between the fixed panel 151 and the mounting body fixing part 637.

[0093] On the other hand, the first displacement limiting part 72 in Fig. 10 is characterized by being provided such that a spring surrounds the circumferential surface of the mounting body 71. One end of the spring is fixed to the fixed panel 151, and the other end of the spring is fixed to the mounting body fixing part 637.

[0094] The number of the mounting bodies 71 is provided as two or more, and the mounting bodies 71 are arranged so as to be separated by the same angle around the fixed panel through hole 153. Fig. 8 shows an example in which three mounting bodies 71 are provided, and the mounting bodies 71 are located at points separated by 120 degrees each around the fixed panel through hole 153.

[0095] In this case, the housing H is provided with the same number of mounting body fixing parts 637 as the mounting bodies 71, and the first displacement limiting part 72 is provided for each mounting body 71.

[0096] As shown in Fig. 8, the mounting part 7 is further provided with a second displacement limiting part 73 that is located between the head 711 and the fixed panel 151 and limits the displacement (the displacement in the direction in which the housing moves away from the fixed panel) of the head 711 moving toward the fixed panel 151.

[0097] The second displacement limiting part 73 is provided in the first region 71a of the mounting body and is composed of an elastic body or a spring located between the head 711 and the fixed panel 151.

[0098] The operating process of the power transmission part 6 described above is as follows. When the rotor 52 rotates, the input shaft 64 rotates. When the driving gear 69 rotates by the input shaft 64, the driven gears 681, 682, 683 located between the driving gear 69 and the ring gear 66 also rotate. When the driven gear 68 rotates, the cage 67 and the output shaft 65 rotate, and the drum 2 fixed to the output shaft 65 also rotates.

[0099] The above-described mounting portion 7 can reduce and suppress the forward vibration (displacement in which the drum 2 moves toward the support panel) and the backward vibration (displacement in which the drum 2 moves toward the fixed panel) that can occur during rotation.

[0100] When the drum 2 moves toward the support panel 121, the housing H connected to the drum by the output shaft 65 moves toward the fixed panel 151. When the housing H moves toward the fixed panel 151, the first displacement limiting portion 72 is compressed by the attachment body fixing portion 637. When the first displacement limiting portion 72 is compressed, the force that moves the drum 2 forward is reduced, and the movement ranges of the drum 2 and the housing H are limited.

[0101] Conversely, when the drum 2 moves toward the fixed panel 151, the housing H moves in a direction away from the fixed panel 151. When the housing H moves in a direction away from the fixed panel 151, the second displacement limiting portion 73 is compressed by the head 711. When the second displacement limiting portion 73 is compressed, the force that moves the drum 2 backward is reduced, and the movement ranges of the drum 2 and the housing H are limited.

[0102] On the other hand, in the clothing treatment apparatus 100 having the above-described structure, the housing H and the stator 51 are fixed to the fixed panel 151 by the mounting portion 7, and the rotor 52 is fixed to the housing H by the input shaft 64. Therefore, since the above-described stator 51 and rotor 52 vibrate together with the housing H, the clothing treatment apparatus 100 is advantageous or effective in maintaining the coaxiality of the input shaft 64 and the output shaft 65.

[0103] As described above, in order to disperse the stress acting on the center of the rear cover 23 (minimize the decrease in the durability of the rear cover) and minimize the decrease in the durability of the power transmission portion 6 when the output shaft 65 rotates, the output shaft 65 is connected to the rear cover 23 of the drum by the shaft fastening portion 25.

[0104] As shown in Fig. 9, the rear cover 23 is provided with a rear cover through hole 231, and the shaft fastening portion 25 includes a first fastening body 251 fixed to the rear cover 23, a connecting body 255 extending from the first fastening body 251 and inserted into the rear cover through hole 231, and a second fastening body 252 fixed to the connecting body 255 and located inside the drum 2. The second fastening body 252 is provided with a fastening portion through hole 253 into which the output shaft 65 is inserted.

[0105] The output shaft 65 is located inside the housing H and includes a fastening shaft 651 fixed to the cage 67 and a fixing shaft 652 extending from the fastening shaft 651 and inserted into the fastening portion through hole 253.

[0106] The circumferential surface of the fixing shaft 652 is provided with a thread 653 to which the nut 256 is fastened. The nut 256 is coupled to one end 652 of the output shaft that has passed through the fastening portion through hole 253 to fix the output shaft 65 to the shaft fastening portion 25.

[0107] The assembly of the drum 2 and the output shaft 65 is carried out by the process of fixing the fixed panel 151 to which the power transmission portion 6 is attached to the base panel 17, the process of inserting the output shaft 65 into the fastening portion through hole 253, the process of fixing the support panel 121 to the base panel 17 to fix the position of the front cover 22, and the process of coupling the output shaft 65 and the shaft fastening portion 25 via the nut 256.

[0108] Before the support panel 121 is fixed to the base panel 17, the output shaft 65 remains inserted into the fastening portion through hole 253, but the front cover is not supported by the drum support portion 128. However, since the output shaft 65 is merely inserted into the fastening portion through hole 253, the front cover 22 can be temporarily seated on the upper surface of the exhaust passage 31, the base 17, etc. Therefore, the shaft fastening portion 25 shown in Fig. 9 minimizes the transmission of the load of the drum 2 to the output shaft 65 when assembling the drum 2 and the output shaft 65, thereby minimizing the reduction in the durability of the power transmission portion 6 (damage to the output shaft bearing, damage to the cage, damage to the ring gear, etc.).

[0109] On the other hand, the diameter of the connecting body 255 is provided so as to decrease from the first fastening body 251 toward the second fastening body 252. When the shape of the connecting body 255 is provided as described above, the fixed shaft 652 is guided to the fastening portion through hole 253 along the surface of the connecting body 255. Therefore, the clothing treatment apparatus 100 can shorten the time for fixing the output shaft 65 to the shaft fastening portion 25.

[0110] In order to prevent the above-described shaft fastening portion 25 from being exposed inside the drum 2, the drum 2 is further provided with a fastening portion cover 27. As shown in FIG. 9, the fastening portion cover 27 may have any shape as long as it closes the rear cover through hole 231 and can prevent the shaft fastening portion 25 from being exposed. The fastening portion cover 27 is provided so as to be fixed to the output shaft 65 by a bolt 273 that is inserted into the cover through hole 271 and fixed to the fastening groove 654 of the fixed shaft 652.

[0111] The above-described clothing treatment apparatus can be implemented in various forms, and the scope of the rights of the present invention is not limited to the above-described embodiments.

Claims

1. A drum body that provides a space for receiving clothing, a front cover that forms the front surface of the drum body, a rear cover that forms the rear surface of the drum body, and a drum provided with a drum inlet that is provided so as to penetrate the front cover, A fixed panel provided at a position separated from the rear cover and provided with a guide hole, An attachment body that is inserted into the guide hole and can reciprocate along a direction orthogonal to the fixed panel, and is divided into a first region facing the direction in which the rear cover is located and a second region located on the opposite side of the first region with reference to the fixed panel, A head provided in the first region to prevent the attachment body from separating from the fixed panel, A housing fixed to the second region, an input shaft having one end located outside the housing and the other end located inside the housing, an output shaft having one end fixed to the rear cover through the fixed panel and the other end located inside the housing, and a power transmission unit provided inside the housing and including a gear unit that transmits the rotational movement of the input shaft to the output shaft, A stator fixed to the second region or the housing to form a rotating magnetic field, A rotor having one end of the input shaft fixed thereto and rotated by the rotating magnetic field, A first displacement limiting unit provided in the second region so as to be located between the fixed panel and the housing and limiting the displacement of the housing moving toward the fixed panel, a clothing treatment apparatus.

2. The first displacement limiting unit is provided with rubber, the clothing treatment apparatus according to claim 1.

3. The first displacement limiting unit is provided with a spring, the clothing treatment apparatus according to claim 1.

4. One end of the spring is fixed to the fixed panel, and the other end of the spring is fixed to the housing, the clothing treatment apparatus according to claim 3.

5. The number of the attachment bodies is provided with two or more, and the attachment bodies are arranged so as to be separated by the same angle around the fixed panel through hole, the clothing treatment apparatus according to claim 1.

6. The number of the first displacement limiting units is equal to the number of the attachment bodies, the clothing treatment apparatus according to claim 5.

7. The clothing treatment apparatus according to any one of claims 1 to 6, further comprising a second displacement limiting portion provided in the first region, located between the head and the fixed panel, and limiting displacement of the housing in a direction away from the fixed panel.

8. The clothing treatment apparatus according to claim 7, wherein the second displacement limiting portion is provided with rubber or a spring.

9. A rear cover through-hole provided so as to penetrate the rear cover, a first fastening body fixed to the rear cover, closing the rear cover through-hole, and fixed to the rear cover; a second fastening body located inside the drum; a fastening portion through-hole provided in the second fastening body; and a shaft fastening portion provided with a connecting body inserted into the rear cover through-hole and connecting the first fastening body and the second fastening body, a fastening portion through-hole provided so as to penetrate the shaft fastening portion and into which one end of the output shaft is inserted, and a nut coupled to one end of the output shaft that has passed through the fastening portion through-hole and fixing the output shaft to the shaft fastening portion, the clothing treatment apparatus according to claim 1.

10. The clothing treatment apparatus according to claim 9, wherein the diameter of the connecting body is set to decrease from the first fastening body toward the second fastening body.

11. The clothing treatment apparatus according to claim 10, further comprising a fastening portion cover located inside the drum, closing the rear cover through-hole, and preventing the shaft fastening portion from being exposed inside the drum.

12. a cover through-hole provided so as to penetrate the fastening portion cover, a fastening groove provided in the output shaft, and a bolt inserted into the cover through-hole, fixed to the fastening groove, and fixing the fastening portion cover to the output shaft, the clothing treatment apparatus according to claim 11.

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