Clothes Processing Equipment

Abstract

the drum including a stator that generates a rotating magnetic field and a rotor that rotates by the rotating magnetic field; a fixed panel located between the rear cover and the stator; a fixed panel through-hole that passes through the fixed panel; a support that is fixed to the fixed panel so as to be rotatable within a predetermined angular range and that is located in the fixed panel through-hole, and a housing mounting part that is provided with a support through-hole that passes through the support; a housing that is fixed to the support and provides a space in which the stator is fixed; an input shaft having one end fixed to the rotor and the other end located inside the housing; an output shaft having one end inserted into the support through-hole and fixed to the rear cover and the other end located inside the housing; and a power transmission part that is located inside the housing and has a gear part that transmits the rotational motion of the input shaft to the output shaft.

Description

[Technical field]

[0001] The present invention relates to a laundry treatment device. [Background technology]

[0002] A clothing processing device is a general term for a washing machine that washes clothing (items to be washed or dried), a dryer that dries clothing, and an apparatus that can both wash and dry clothing.

[0003] A washing machine is generally equipped with a tub in which water is stored, a washing drum inside the tub in which clothes are received, and a drive unit (washing drive unit) that rotates the washing drum, while a dryer is generally equipped with a drying drum in which clothes are received, a drive unit (drying drive unit) that rotates the drying drum, and a heat exchange unit that supplies air to the drying drum to remove moisture from the clothes.

[0004] The washing drive unit is generally configured to include a stator that is fixed to the tub and forms a rotating magnetic field, a rotor that rotates due to the rotating magnetic field, and a rotating shaft that passes through the tub and connects the washing drum and the rotor, while the drying drive unit is generally configured to include a motor, a pulley that is fixed to the rotating shaft of the motor, and a belt (power transmission unit) that connects the rotational motion of the pulley to the drying drum.

[0005] The washing drive unit is provided so that the rotating shaft of the motor directly connects the washing drum and the rotor. In order to wash and spin-dry the clothes, the washing drive unit needs to control the rotation speed of the washing drum to a high speed or change the rotation direction of the washing drum. When the rotating shaft of the motor is provided so that the rotating shaft directly connects the washing drum and the rotor, the rotation speed and rotation direction of the washing drum can be easily controlled.

[0006] Meanwhile, conventional dryer drive units generally have a structure in which a power transmission unit such as a belt connects the dryer drum to the rotating shaft of a motor. This is because a dryer does not have much need to maintain a high rotation speed of the dryer drum or change the rotation direction of the dryer drum, and the dryer drum may be rotated by a power transmission unit such as a belt. However, if the rotation speed and rotation direction of the dryer drum can be changed, the movement of the clothes inside the dryer drum can be controlled, and therefore, a shorter drying time and improved drying performance can be expected in the dryer.

[0007] Among conventional dryers, there is one equipped with a dryer drive unit that connects the rotor and drying drum to a reducer (power transmission unit) (Korean Patent Publication No. 10-2020-0065931). This dryer drive unit is equipped with an input shaft connected to the rotor and an output shaft connected to the drying drum that are coaxial, which is expected to shorten the drying time and improve drying performance, but it has disadvantages in that it is difficult to assemble the drying drum and the output shaft of the reducer, and when assembling the drying drum and the output shaft, the durability of the reducer and drying drum decreases (damage to the bolts attached to the reducer, damage to the output shaft, damage to the drying drum, etc.).

[0008] In addition, in conventional dryers, the vibration of the drying drum fixed to the output shaft of the reducer is transmitted to the reducer, and the vibration transmitted to the reducer is then transmitted to the support on which the reducer is supported. Therefore, the rigidity of the support on which the reducer is supported needs to be set so as to reduce or suppress the vibration of the drying drum (vibration of the reducer) when the drying drum rotates.

[0009] If the thickness of the support is thick, the vibration of the drying drum can be effectively suppressed, but there is a disadvantage that the manufacturing cost and weight of the laundry treatment device increase, whereas if the thickness of the support is thin, the vibration of the drying drum cannot be limited within a set range, and there is a risk of the support or the reducer being damaged. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Korean Patent Publication No. 10-2020-0065931 Summary of the Invention [Problem to be solved by the invention]

[0011] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a clothes treating device that can minimize deterioration in the durability of a power transmission unit and a drum.

[0012] Another object of the present invention is to provide a clothes treating device capable of minimizing deterioration in durability of a fixing panel to which a power transmission unit is fixed.

[0013] Another object of the present invention is to provide a clothes treating device in which the power transmission unit and the drum can be easily assembled. [Means for solving the problem]

[0014] the drum including 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, a drum including a drum input port provided to pass through the front cover, a motor including a stator forming a rotating magnetic field and a rotor rotated by the rotating magnetic field, a fixed panel located between the rear cover and the stator, a fixed panel through-hole passing through the fixed panel, a support fixed to the fixed panel so as to be rotatable within a preset angular range and located in the fixed panel through-hole, and a housing mounting part including a support through-hole passing through the support, a housing fixed to the support and providing a space for fixing the stator, an input shaft having one end fixed to the rotor and the other end located inside the housing, an output shaft having one end inserted into the support through-hole and fixed to the rear cover and the other end located inside the housing, and a power transmission part having a gear part located inside the housing and transmitting the rotational motion of the input shaft to the output shaft.

[0015] The garment treatment device further includes a displacement limiter that sets a rotation angle of the support relative to the fixed panel.

[0016] The displacement limiting portion includes a mounting hole formed to penetrate the fixed panel, a fastener inserted into the mounting hole and having one end positioned between the rear cover and the fixed panel and the other end fixed to the housing, and a head provided on the fastener and positioned between the rear cover and the fixed panel.

[0017] The diameter of the fastener is set to be smaller than the diameter of the mounting hole.

[0018] The stator is secured to a fastener or housing.

[0019] The clothing treatment device further includes a damper coupled to the fastener and positioned between the fixed panel and the housing.

[0020] The clothing processing device further includes an output shaft through hole provided in the housing and through which the output shaft passes, an output shaft support portion provided in a pipe shape surrounding the output shaft through hole, protruding from the housing and inserted into the support through hole, and a support fixing portion fixed to the circumferential surface of the output shaft support portion and preventing the output shaft support portion from being separated from the support through hole.

[0021] The clothing processing device includes a first fixed body fixed to a fixed panel, a first fixed body through hole passing through the first fixed body, a support part first housing provided on the first fixed body to surround the first fixed body through hole, a second fixed body fixed to the fixed panel or the first fixed body, a second fixed body through hole passing through the second fixed body, and a support part second housing provided on the second fixed body to surround the second fixed body through hole and which forms an installation space together with the support part first housing.

[0022] The clothing treatment device further includes a guide that defines a rotational path for the support.

[0023] The guide includes a first protrusion provided in the mounting space and protruding toward the support, a second protrusion provided in the mounting space and protruding toward the support, a first groove provided along the circumferential surface of the support and forming a movement path for the first protrusion, and a second groove provided along the circumferential surface of the support and forming a movement path for the second protrusion.

[0024] The first and second protrusions are provided to be located at points spaced apart from each other by 180 degrees with respect to the center of the support through hole.

[0025] The first groove is provided as a groove bent from the uppermost end of the support toward the support through-hole, and the second groove is provided as a groove bent from the lowermost end of the support toward the support through-hole.

[0026] The clothing processing device includes a rear cover through-hole formed to pass through the rear cover, a shaft fastening portion fixed to the rear cover and closing the rear cover through-hole, a fastening portion through-hole formed to pass through the shaft fastening portion and into which one end of the output shaft is inserted, and a nut connected to one end of the output shaft inserted into the fastening portion through-hole and fixing the output shaft to the shaft fastening portion.

[0027] The diameter of the connector is configured to decrease from the first connector to the second connector.

[0028] The garment treatment device further includes a fastener cover located inside the drum for closing the rear cover through-hole and preventing the shaft fastener from being exposed inside the drum.

[0029] The clothing processing device includes a cover through-hole formed to pass through the fastening portion cover, a fastening groove formed in the output shaft, and a bolt inserted into the cover through-hole and fixed to the fastening groove to fix the fastening portion cover to the output shaft. Effect of the Invention

[0030] The present invention provides a clothes treating device that can minimize deterioration in durability of a power transmission unit and a drum.

[0031] In addition, the present invention provides a clothes treating device that can minimize deterioration in durability of a fixing panel to which a power transmission unit is fixed.

[0032] The present invention also provides a clothes treating device in which the power transmission unit and the drum can be easily assembled. [Brief description of the drawings]

[0033] [Figure 1] 1 shows an example of a clothing treatment device. [Diagram 2] 1 shows an example of a cabinet structure and support panels. [Diagram 3] 1 shows an example of a drum. [Figure 4] 2 shows an example of a drying section. [Diagram 5] 1 shows an example of a fixed panel. [Figure 6] 2 shows an example of a power transmission unit. [Figure 7] 2 shows an example of a power transmission unit. [Figure 8] 1 shows an example of a coupling structure of a drum, a fixed panel, and a power transmission unit. [Figure 9] 1 shows an example of a coupling structure of a drum, a fixed panel, and a power transmission unit. [Figure 10] 1 shows an example of a connection structure between a drum and an output shaft. [Figure 11] 1 shows an example of a connection structure between a drum and an output shaft. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] Hereinafter, an embodiment of a clothes processing device will be described in detail with reference to the accompanying drawings.

[0035] Fig. 1 shows an example of a clothing processing device 100, which includes a cabinet 1 and a drum 2 that is rotatably provided inside the cabinet and provides a space for receiving clothing (items to be washed or dried). As shown in Fig. 2, the cabinet 1 includes a drying section 3 that supplies high-temperature dry 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.

[0036] 2, the cabinet 1 includes a front panel 11 that forms the front surface of the garment treatment device, and a base panel 17 that forms the bottom surface of the garment treatment device. The front panel 11 is provided with an input port 111 that communicates with the drum 2, and the input port 111 is provided so as to be closed by a door 113.

[0037] The front panel 11 is provided with a control panel 115, which includes an input unit for inputting control commands from a user and a display unit for outputting information such as user-selectable control commands. The input unit includes a power supply request unit for requesting power supply to the clothing processing device, a course input unit for allowing 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.

[0038] The inside of the drum 2 is formed in a hollow cylindrical shape. As shown in Fig. 3, the drum 2 is provided to include a cylindrical drum body 21 whose front and rear faces are open, a front cover 22 that forms the front face of the drum body 21, and a rear cover 23 that forms the rear face of the drum body 21.

[0039] The front cover 22 is provided with a drum input port 221 that connects 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.

[0040] The drum body 21 is further provided with a lifter 24. The lifter 24 is a means for allowing the clothes to repeatedly rise and fall inside the drum. The lifter 24 is provided by a board extending from the front cover 22 toward the rear cover 23 and protruding from the drum body 21 toward the center of rotation of the drum 2 (protruding from the circumferential surface of the drum toward the center of rotation of the drum).

[0041] When the clothing treatment device 100 is used only as a device for drying clothing, the drum 2 does not need to be provided with a drum through-hole that passes through the drum body 21 to connect the inside of the drum with the outside of the drum.

[0042] As shown in Fig. 4, the drum 2 described above is rotatably fixed to at least one of the main body first support part 12 and the main body second support part 15. Fig. 4 shows an example in which the rear cover 23 is rotatably fixed to the main body second support part 15 via the power transmission part 6 described later, and the front cover 22 is rotatably connected to the main body first support part 12.

[0043] The first main body support part 12 is provided as a support panel 121 fixed to the cabinet 1 and 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.

[0044] 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 input port 221, and a panel connector 125 that connects the support panel through hole 122 and the input port 111. The support panel through hole 122 is provided to penetrate the support panel 121, and is a means for communicating the input port 111 and the drum input port 221.

[0045] 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 in the space provided by the support panel). One end of the drum connector 123 is provided to surround the support panel through hole 122, and the free end of the drum connector 123 is provided 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 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.

[0046] 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 in the space 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.

[0047] The support panel 121 is provided with an exhaust port 126 that exhausts 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 out foreign matter from the air moving from the drum 2 to the exhaust port 126.

[0048] The support panel 121 may further include a drum support portion 128 for preventing sagging of the drum 2. The drum support portion is fixed to the support panel 121 and is provided as a roller for rotatably supporting the drum 2. Although Fig. 4 shows that the drum support portion 128 is provided to support the front cover 22, the drum support portion 128 may be provided to support the circumferential surface of the drum body 21.

[0049] The second main body support part 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 of the garment processing device 100 (the rear surface of the cabinet).

[0050] 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 formed by bending the fixed panel 151 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) that rotates the drum 2 passes, and the fixed panel through hole 153 is located inside the drive unit mounting groove 152.

[0051] As described above, when the drum 2 is composed of the drum body 21, the front cover 22 fixed to the drum body, and the rear cover 23 fixed to the drum body, the drum has higher rigidity than a structure in which the open front and rear faces of the drum body 21 are rotatably connected to the support panel 121 and the fixed panel 151, respectively. When the drum has higher rigidity, deformation of the drum body 21 during drum rotation can be minimized, which can minimize the problem of clothes being 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 21 (the load on the motor can be minimized).

[0052] As shown in FIG. 4, the drying unit 3 includes 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 exchanger 34 that is provided inside the exhaust passage 31 and sequentially dehumidifies and heats the air.

[0053] The exhaust passage 31 includes 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 connecting the first duct 311 and the second duct 312. The third duct 313 is fixed to the base panel 17.

[0054] 4 shows an example in which the heat exchanger 34 is a heat pump. That is, the heat exchanger 34 includes a first heat exchanger (heat absorption part) 341 that removes moisture from the air that is introduced into the exhaust passage 31, a second heat exchanger (heat generation part) 343 that is provided inside the exhaust passage 31 and heats the air that has passed through the heat absorption part 341, and a fan 349 that moves the air discharged from the drum 2 to the supply duct 32 after the air has passed through the heat absorption part and the heat generation part in sequence.

[0055] The heat absorbing part 341 and the heat generating part 343 are sequentially arranged along the direction of air movement and are connected to each other through a refrigerant pipe 348 that forms a circulation path of the refrigerant. The refrigerant moves along the refrigerant pipe 348 by a compressor 345 located outside the exhaust path 31, and the refrigerant pipe 348 is provided with a pressure regulator 347 that adjusts the pressure of the refrigerant.

[0056] 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 forming a movement path of the air discharged from the second duct 312, a first flow path forming part 323 and a second flow path forming part 324 which guide the air inside the supply duct 321 to the air inlet 233.

[0057] The supply duct 321 is provided to form a flow path (air movement path) by bending the fixed panel 151 in a direction away from the rear cover 23. In addition, the supply duct 321 is provided in a ring shape surrounding the drive unit mounting groove 152, and the outlet of the second duct 312 is provided to be connected to the circumferential surface of the supply duct 321.

[0058] The first flow path forming portion 323 is arranged to surround an outer circumferential surface of the ring formed by the air inlet 233 (the circumferential surface having the longer diameter of the two circumferential surfaces of the ring), and the second flow path forming portion 324 is arranged to surround an inner circumferential surface of the ring formed by the air inlet 233 (the circumferential surface having the shorter diameter of the two circumferential surfaces of the ring).

[0059] The first flow path forming portion 323 and the second flow path forming portion 324 may be fixed to the rear cover 23 or may be fixed to the supply duct 321, but FIG. 5 shows an example in which the flow path forming portions 323, 324 are fixed to the rear cover 23.

[0060] 5, the free end of the first flow path forming part 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 part 324 surrounds the inner circumferential surface of the flow path formed by the supply duct 321. The first flow path forming part 323 and the second flow path forming part 324 are made of rubber, felt, or the like.

[0061] The motor 5 that generates the power required to rotate the drum 2 includes a stator 51 that is positioned in the drive unit mounting groove 152 and forms a rotating field, and a rotor 52 that rotates due to the rotating field. The rotational motion of the rotor 52 is transmitted to the drum 2 via a power transmission unit 6 that is fixed to a fixed panel 151, and the stator 51 is fixed to the power transmission unit 6.

[0062] When the stator 51 is fixed to the power transmission unit 6, it has an advantageous effect in maintaining the coaxiality of the input shaft 64 and the output shaft 65 provided in the power transmission unit 6 (which can minimize vibration of the clothing treatment device when the drum rotates and minimize deterioration in durability of the power transmission unit).

[0063] In order to prevent the motor 5 positioned in the drive unit mounting groove 512 from being exposed to the outside (to improve the durability of the motor and prevent safety accidents by preventing the motor from being exposed to the external environment), the fixing panel 151 is further provided with a cover panel 19 that prevents the motor 5 from being exposed to the outside. In addition, 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 not only minimize the loss of heat to the outside of the supply duct 321 but also to prevent safety accidents that may occur when the body comes into contact with the supply duct 321.

[0064] The stator 51 includes a ring-shaped core 511 having a through hole (core through hole) at the center, a plurality of support rods 513 protruding radially from the outer circumferential surface of the core 511, insulators 512 for insulating the core and the support rods, and coils 514 arranged to surround the support rods 513.

[0065] The rotor 52 includes a disk-shaped rotor body 521, a rotor circumferential surface 522 extending from the edge of the rotor body 521 toward the fixed panel 515 and forming a space in which the stator 51 is received, and a plurality of permanent magnets 523 fixed to the rotor circumferential surface 522 so that the north and south poles are exposed alternately.

[0066] FIG. 6 shows an example of a power transmission unit 6 connecting the rotor 52 and the rear cover 23 of the drum.

[0067] The power transmission unit 6 includes a housing H fixed to a fixed panel 151, an input shaft 64 rotatably fixed to the bottom surface of the housing H (the surface facing the direction in which the rotor is located), an output shaft 65 rotatably fixed to the top surface of the housing H (the surface facing the direction in which the fixed panel is located), and a gear unit G provided inside the housing and transmitting the rotational motion of the input shaft 64 to the output shaft 65.

[0068] The input shaft 64 is provided as a shaft having one end fixed to the rotor 52 and the other end located inside the housing H, and the output shaft 65 is provided as a shaft having one end fixed to the rear cover 23 and the other end 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.

[0069] It is preferable that the housing H is provided so as to be located in a space (external space of the cabinet) separated from the space (internal space of the cabinet) in which the drum 2 is located, in order to improve the durability of the power transmission unit 6 by minimizing the transfer of heat inside the cabinet (heat emitted from the drum or drying unit) to the inside of the housing H.

[0070] The input shaft 64 is coupled to the rotor body 521 via the 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.

[0071] The output shaft 65 is inserted into the fixing panel through hole 153 and connected to the rear cover 23, and the rear cover 23 is provided with a shaft fastening portion 25 to which the output shaft 65 is fixed. This is to disperse stress acting on the center of the rear cover 23 when the output shaft 65 rotates. The specific structure of the shaft fastening portion 25 will be described later.

[0072] The housing H is provided in a hollow cylindrical shape, 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.

[0073] The housing body 62 is provided to form a receiving space 621 in which the gear portion G is attached. The receiving space 621 is provided to be formed via a housing base 62a to which the input shaft 64 is fixed and a housing circumferential surface 62b extending from an edge of the housing base 62a toward the housing cover 63.

[0074] As shown in FIG. 7, the housing body 62 has an input shaft support portion 625 extending from the housing base portion 62a toward the rotor 52, and the input shaft support portion 625 is provided as a pipe surrounding an input shaft through hole 626 that penetrates the housing body 62.

[0075] The input shaft 64 inserted into the input shaft through hole 626 is rotatably fixed to the input shaft support portion 625 via input shaft bearings 628, 629. The input shaft bearings are provided to include an input shaft first bearing 628 fixed to the input shaft support portion 625, and an input shaft second bearing 629 fixed inside the input shaft through hole 626 and positioned between the input shaft first bearing 628 and the rotor 52.

[0076] The housing cover 63 may have any shape as long as it can open and close the opening provided in the housing body 62, but Fig. 7 shows an example in which the housing cover 63 is provided as a disk-shaped cover body 631. The housing cover 63 is provided so as to be fixed to the housing body 62 via a cover fixing plate 623 provided on the housing circumferential surface 62b.

[0077] The housing cover 63 includes an output shaft through hole 632 formed to penetrate 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.

[0078] The output shaft support portion 635 is provided with output shaft bearings 638 and 639 that rotatably fix the output shaft 65 in the output shaft through hole 632 .

[0079] The output shaft bearing is fixed to the output shaft support portion 635 and is provided to include an output shaft first bearing 638 and an output shaft second bearing 639 located inside the output shaft through hole 631 .

[0080] The gear section G is configured to include a ring gear 66 fixed to the housing circumferential surface 62b and positioned in the receiving space 621, a main 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 to which the other end of the output shaft 65 is fixed, and a driven gear 68 fixed rotatably to the cage 67 and connecting the main gear 69 and the ring gear 66.

[0081] The ring gear 66 includes a gear body 661 fixed to the housing circumferential surface 62b, a gear body through hole 663 extending through the gear body, and gear teeth 665 provided along the inner circumferential surface of the gear body.

[0082] The cage 67 is provided to include a first base 671 located inside the gear body through hole 663 and to which one end of the output shaft 65 is fixed, a second base 672 located inside the gear body through hole 663 and provided with a base through hole 673 in the center, and a connecting shaft 675 connecting the first base and the second base and forming the rotation shaft of the driven gear 68. Since the output shaft 65 is fixed to the first base 671, whether the output shaft 65 rotates or not is determined depending on whether the cage 67 rotates or not.

[0083] The driven gear 68 is provided as a plurality of gears rotatably fixed to the connecting shaft 675, and the drawing shows an example in which the driven gears are provided as a first driven gear 681, a second driven gear 682, and a third driven gear 683.

[0084] The input shaft 64 is inserted into the base through hole 673 and is coaxial with the output shaft 65 , and the gear teeth of the driving gear 69 are positioned in the space formed between the driven gears and mesh with the teeth of the driven gears 682 , 682 , 683 .

[0085] The operation process of the power transmission unit 6 described above is as follows. When the rotor 52 rotates, the input shaft 64 rotates. When the main gear 69 rotates by the input shaft 64, the driven gears 681, 682, 683 meshed with the main gear 69 also rotate. Since the driven gears 681, 682, 683 are in mesh with the ring gear 66 fixed to the housing body 62, 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.

[0086] The power transmission unit 6 having the above-described structure is rotatably fixed to the fixed panel 151 by the housing mounting portion 7.

[0087] As shown in Fig. 8, the housing attachment portion 7 is provided as a support portion 74 that is fixed to a fixed panel 151 so as to be rotatable within a preset angular range. Fig. 8 shows an example in which the support portion 74 is rotatably fixed to the fixed panel 151 by a first fixed body 71 and a second fixed body 72.

[0088] As shown in FIG. 9, the first fixed body 71 and the second fixed body 72 are means for forming a mounting space 73 in which a support portion 74 is received.

[0089] The first fixture 71 and the second fixture 72 are separated from each other and fixed to the fixed panel 151. Alternatively, the first fixture 72 may be fixed to the fixed panel 151, and the second fixture 72 may be fixed to the first fixture 71.

[0090] The first fixed body 71 is provided with a first fixed body through hole 711 that communicates with the fixed panel through hole 153, and a support portion first housing 712 that is provided to surround the first fixed body through hole 711 and forms part of the mounting space 73.

[0091] The second fixed body 72 is provided with a second fixed body through hole 721 communicating with the fixed panel through hole 153 (communicating with the first fixed body through hole), and a support portion second housing 722 surrounding the second fixed body through hole 721 and forming a part of the mounting space 73. The mounting space 73 is formed by combining the support portion first housing 712 and the support portion second housing 722.

[0092] The support portion 74 is provided so as to include a substantially spherical support 741 positioned inside the mounting space 73 and a support through-hole 742 penetrating the support 741 .

[0093] The support 741 coupled to the mounting space 73 is positioned in the fixed panel through-hole 153. Therefore, when the support 741 is fixed to the mounting space 73, the support through-hole 742 is positioned in the fixed panel through-hole 153.

[0094] The output shaft support part 635 of the power transmission part is inserted into the support through hole 742, and the output shaft support part 635 is fixed to the support 741 via the support fixing part 743. The output shaft support part 634 has a screw thread on its circumferential surface, and the support fixing part 743 is provided with a nut that is fastened to the screw thread.

[0095] The housing attachment portion 7 is further provided with a guide 75 that forms a rotation path for the support 741. The guide 75 is provided so as to form a path along which the support 741 moves in the height direction of the fixed panel 151.

[0096] That is, the guide 75 is a means for rotating the support 741 within a plane (ZY plane) that extends from the fixed panel 151 toward the support panel 121 and that includes a vertical line H (a vertical line passing through the center of the second fixed body through hole, a vertical line passing through the center of the first fixed body through hole) passing through the center of the fixed panel through hole 153. Therefore, as shown in Fig. 10, the guide 75 is a means for preventing the support 741 from rotating within a plane (XZ plane) parallel to the base panel 17.

[0097] As shown in FIG. 9, the guide 75 is provided in the mounting space 73 and includes a first protrusion 751 protruding toward the support 741, a second protrusion 752 provided in the mounting space and protruding toward the support 741, a first groove 753 provided along the circumferential surface of the support 741 and forming a movement path for the first protrusion 751, and a second groove 754 provided along the circumferential surface of the support 741 and forming a movement path for the second protrusion 752.

[0098] The first protrusion 751 and the second protrusion 752 are provided to be located at points spaced 180 degrees apart from each other with respect to the center of the support through hole 742. That is, the first protrusion 751 is provided to contact the uppermost end of the support 741, and the second protrusion 752 is provided to contact the lowermost end of the support 741.

[0099] The first protrusion 751 is provided on at least one of the support portion first housing 712 and the support portion second housing 722 , and the second protrusion 752 is provided on at least one of the support portion first housing 712 and the support portion second housing 722 .

[0100] Although the above embodiment describes the case where the support 741 is provided in a spherical shape, the shape of the support 741 can be changed in various ways as long as the support allows the above-mentioned movement.

[0101] In the clothing processing device 100 having the above-mentioned structure, the rear cover 23 of the drum is fixed to the output shaft 65, and the front cover 22 is seated on the drum support part 128. When the drum 2 rotates, vibrations are generated in the drum, but since the power transmission part 6 to which the output shaft 65 is fixed is fixed to the fixed panel 151 by the housing mounting part 7, the transmission of the vibrations of the drum to the fixed panel 151 can be reduced. Therefore, the clothing processing device 100 can minimize the deterioration of the durability of the fixed panel 151.

[0102] Meanwhile, the clothing processing device 100 further includes a displacement limiting unit 8 that limits the rotation angle of the support 741. When the rotation angle of the support 741 is limited by the displacement limiting unit 8, the sagging of the front surface 22 (front cover) of the drum (the angle between the horizontal line and a straight line that passes through the rotation center of the drum and is parallel to the length direction of the drum) can be adjusted.

[0103] The displacement limiting portion 8 is provided to include a fastening body 81 that passes through the fixed panel 151 and is fixed to the housing H.

[0104] 11, one end of the fastener 81 is located between the rear cover 23 and the fixed panel 151, and the other end is fixed to the housing H. The housing H is provided with a connector 637 that is coupled to the other end of the fastener 81.

[0105] One end of the fastener 81 is provided with a head 82 that is located between the rear cover 23 and the fixed panel 151 and prevents the fastener 81 from being separated from the fixed panel 151 .

[0106] The stator 51 may be fixed to the connector 637, or may be directly fixed to the fastener 81. Fig. 11 shows an example in which the stator 51 is fixed to the fastener 81 by a bolt that connects the insulator 512 and the fastener 81.

[0107] The fastener 81 penetrates the fixed panel 151 through the mounting hole 84. When the fastener 81 is provided to penetrate only the fixed panel 151, the mounting hole 84 becomes a first mounting hole 841 provided in the fixed panel 151. On the other hand, when the fastener 81 is provided to penetrate both the first fixed body 71 and the fixed panel 151, the mounting hole 84 becomes a first mounting hole 841 provided in the fixed panel and a second mounting hole 842 that penetrates the first fixed body 71.

[0108] 11 shows that the fastener 81 is provided to pass through all of the fastener bracket 87, the first fixed body 71, and the fixed panel 151, in which case the mounting holes 84 are a first mounting hole 841 provided in the fixed panel, a second mounting hole 842 that passes through the first fixed body 71, and a third mounting hole 843 that passes through the fastener bracket 87. The diameter of the fastener 81 needs to be set smaller than the diameter of the mounting hole 84 so that the housing H can rotate (so that the fastener can move inside the mounting hole) within a preset angle range.

[0109] The fastener bracket 87 is a means for minimizing the risk of the fastener 81 damaging the fixed panel 151. As shown in FIG. 9, the fastener bracket 87 is provided in a disk shape and is fixed to the first fixed body 71.

[0110] The fastener bracket 87 is provided with a bracket through-hole 871 that is formed to communicate with the fixing panel through-hole 153 and exposes the mounting space 73 to the outside.

[0111] The third mounting hole 843 is provided as a plurality of through holes arranged to surround the bracket through hole 871, and the fastener bracket 87 further includes a fastener guide 872 extending from the third mounting hole 843 toward the first fixed body 71.

[0112] 11, fastener guide 872 is inserted into second mounting hole 842 and first mounting hole 841 to guide the linear motion of fastener 81. In this case, the diameter of fastener 81 needs to be set smaller than the diameter of fastener guide 872 so that housing H can rotate freely within a preset angular range (so that the fastener moves inside the fastener guide).

[0113] The displacement limiting part 8 is further provided with a damper 85 in order to allow the housing H to rotate (rotate within the YZ plane) around the support 741, return the housing H to its initial position, limit the displacement of the drum front cover 22, and prevent the housing H from colliding with the fixed panel 151. The damper 85 is provided in the fastener 81 and is provided as a ring-shaped rubber or spring located between the fixed panel 151 and the connector 637.

[0114] In the clothing processing device 100 having the above-mentioned structure, the housing H of the power transmission unit 6 rotates around the support body 741, so that even if the drum 2 vibrates in the YZ plane, the transmission of external force to the output shaft 65, output shaft bearings 638, 639, cage 67, and gear unit G provided in the power transmission unit 6 can be minimized.

[0115] In addition, since the clothing treatment device 100 having the above-mentioned structure rotates around the support 741 (because the vibration of the drum is consumed by the kinetic energy of the housing), it can also minimize the transmission of the vibration of the drum to the fixed panel 151 (improving the durability of the fixed panel).

[0116] As described above, in order to distribute the stress acting on the center of the rear cover 23 when the output shaft 65 rotates (to minimize the deterioration of the durability of the rear cover), the output shaft 65 is connected to the rear cover 23 of the drum via the shaft fastening portion 25.

[0117] That is, as shown in FIG. 8, the rear cover 23 is provided with a rear cover through hole 231 , and the shaft fastening portion 25 is fixed to the rear cover 23 so as to close the rear cover through hole 231 .

[0118] The shaft fastening part 25 includes a first fastening body 251 fixed to the rear cover 23, a connector 255 extending from the first fastening body 251 and inserted into the rear cover through hole 231, and a second fastening tube 252 fixed to the connector 255 and positioned inside the drum 2. The second fastening body 252 has a fastening part through hole 253 into which the output shaft 65 is inserted.

[0119] The output shaft 65 is located inside the housing H and includes a fastening shaft 651 fixed to the cage 67, and a fixed shaft 652 extending from the fastening shaft 651 and inserted into the fastening portion through hole 253. A screw thread 653 is formed on the circumferential surface of the fixed shaft 652. In this case, the output shaft 65 is fixed to the shaft fastening portion 25 by a nut 256 coupled to the screw thread 653.

[0120] The assembly of the drum 2 and the output shaft 65 is carried out through the steps of fixing the fixing panel 151, to which the power transmission unit 6 is attached, to the base panel 17, inserting the output shaft 65 into the fastening part through hole 253, fixing the support panel 121 to the base panel 17 and fixing the position of the front cover 22, and connecting the output shaft 65 to the shaft fastening part 25 via the nut 256.

[0121] Before the support panel 121 is fixed to the base panel 17, the output shaft 65 remains inserted in the fastening part through hole 253, but the front cover is not supported by the drum support part 128. However, in the above-mentioned clothing processing device, the fastening part through hole 253 and the support body 741 allow the front cover 22 to remain temporarily seated on the upper surface of the exhaust passage 31, the base part 17, etc. Therefore, the clothing processing device 100 can reduce the risk of the durability of the power transmission part 6 decreasing when the shaft fastening part 25 and the output shaft 65 are coupled.

[0122] Meanwhile, the diameter of the connector 255 is configured to decrease from the first fastener 251 to the second fastener 252. When the connector 255 has the above-described shape, the fixed shaft 652 is guided into the fastener through-hole 253 along the surface of the connector 255, so that the time required to insert the fixed shaft 652 into the fastener through-hole 253 can be shortened.

[0123] In order to prevent the above-mentioned shaft fastening portion 25 from being exposed to the inside of the drum 2, a fastening portion cover 27 is further provided in this embodiment as well. The fastening portion cover 27 may have any shape as long as it can close the rear cover through hole 231 and prevent the shaft fastening portion 25 from being exposed.

[0124] The fastening portion cover 27 is provided so as to be fixed to the output shaft 65 by a bolt 273 which is inserted into the cover through hole 271 and fixed to the fastening groove 654 of the fixed shaft 652 .

[0125] The above-described clothing treatment device can be modified and embodied in various forms, and the scope of the present invention is not limited to the above-described embodiments.

Claims

1. a drum including a drum body on which garments are received, 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 motor including a stator that generates a rotating magnetic field and a rotor that rotates due to the rotating magnetic field; a fixing panel located between the rear cover and the stator; A fixing panel through hole penetrating the fixing panel; a housing mounting portion including a support member fixed to the fixed panel so as to be rotatable within a preset angular range and positioned in the fixed panel through hole, and a support member through hole penetrating the support member; a housing fixed to the support and providing a space in which the stator is fixed; an input shaft having one end fixed to the rotor and the other end located inside the housing; an output shaft having one end inserted into a through hole of the support and fixed to the rear cover and the other end located inside the housing; and a power transmission unit located inside the housing and having a gear unit for transmitting the rotational motion of the input shaft to the output shaft.

2. The clothing treatment device according to claim 1 , further comprising a displacement limiting unit that sets a rotation angle of the support body relative to the fixed panel.

3. The displacement limiting portion is A mounting hole provided to pass through the fixed panel; a fastener that is inserted into the mounting hole, has one end located between the rear cover and the fixed panel, and has the other end fixed to the housing; a head provided on the fastener and positioned between the rear cover and the fixing panel; The clothing processing device according to claim 2, wherein the diameter of the fastening body is set to be smaller than the diameter of the mounting hole.

4. The clothing treatment device according to claim 3 , wherein the stator is fixed to the fastening body or the housing.

5. The clothing treatment device of claim 3, further comprising a damper coupled to the fastener and positioned between the fixed panel and the housing.

6. an output shaft through hole provided in the housing and through which the output shaft passes; an output shaft support portion having a pipe shape surrounding the output shaft through hole, protruding from the housing and inserted into the support body through hole; The clothing processing device according to claim 1 , further comprising a support fixing portion fixed to a circumferential surface of the output shaft support portion to prevent the output shaft support portion from being separated from the support through hole.

7. A first fixed body fixed to the fixed panel; a first fixed body through hole penetrating the first fixed body; a support portion first housing provided on the first fixed body so as to surround the first fixed body through hole; A second fixed body fixed to the fixed panel or the first fixed body; a second fixed body through hole penetrating the second fixed body; The clothing processing device according to claim 1, further comprising: a support portion second housing provided on the second fixed body so as to surround the second fixed body through hole and forming the mounting space together with the support portion first housing.

8. The clothing treatment device according to claim 7, further comprising a guide that defines a rotation path for the support.

9. The guide is A first protrusion provided in the mounting space and protruding toward the support body; A second protrusion provided in the mounting space and protruding toward the support body; A first groove is provided along a circumferential surface of the support and forms a movement path of the first protrusion; The clothing processing device according to claim 8, further comprising: a second groove provided along the circumferential surface of the support and forming a movement path for the second protrusion.

10. The clothing treatment device according to claim 9, wherein the first protrusion and the second protrusion are located at points spaced 180 degrees apart from each other with respect to the center of the support through hole.

11. The first groove is provided as a groove bent from the uppermost end of the support toward the support through hole, The clothing treatment device according to claim 10, wherein the second groove is formed as a groove bent from the bottom end of the support toward the support through hole.

12. A rear cover through hole provided to pass through the rear cover; a shaft fastening portion fixed to the rear cover and closing the rear cover through hole; a fastening portion through hole provided to pass through the shaft fastening portion and into which one end of the output shaft is inserted; The clothing processing device according to claim 1 , further comprising: a nut coupled to one end of the output shaft inserted into the fastening portion through hole, the nut fixing the output shaft to the shaft fastening portion.

13. The clothing treatment device according to claim 12, wherein the diameter of the connector is configured to decrease from the first fastening body toward the second fastening body.

14. The clothing treatment device according to claim 12, further comprising a fastening portion cover located inside the drum to close the rear cover through hole and prevent the shaft fastening portion from being exposed inside the drum.

15. a cover through hole provided to pass through the fastening portion cover; A fastening groove is provided in the output shaft; The clothing processing device according to claim 14, further comprising: a bolt that is inserted into the cover through-hole and fixed to the fastening groove to fix the fastening portion cover to the output shaft.

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