Laundry treating apparatus

Abstract

A laundry treating apparatus includes a drum providing a space for storing laundry, a drying part supplying heated air to the drum, a fixing panel provided at a position spaced apart from a rear surface of the drum, a power transmission part including a housing fixed to the fixing panel, 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 a rear surface of the drum and the other end located inside the housing, and a gear unit located inside the housing and transmitting a rotational motion of the input shaft to the output shaft, and a motor fixed to the fixing panel or the housing to rotate the input shaft. The housing includes a housing main body having an open hole in a surface facing the fixing panel, an accommodation space provided in the housing main body to provide a space in which the gear unit is installed and to communicate with the outside through the open hole, and a housing cover fixed to the housing main body in a separable manner to close the open hole.

Description

[0001] This invention is a divisional application of the following patent application: Application No.: 202210118256.7, Application Date: February 8, 2022, Invention Title: Clothing Processing Device Technical Field

[0002] This invention relates to a garment processing device. Background Technology

[0003] Clothing handling equipment is a general term for washing machines used to wash clothes (washed or dried), dryers used to dry clothes, and other devices capable of washing and drying clothes.

[0004] Generally, a washing machine includes: an outer tub for storing water; a washing drum disposed inside the outer tub for storing clothes; and a drive unit (washing drive unit) for rotating the washing drum. A dryer includes: a drying drum for storing clothes; 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 clothes.

[0005] Generally, the washing drive unit includes: a stator fixed to the outer tub to form a rotating magnetic field; a rotor that rotates by means of the rotating magnetic field; and a rotating shaft that passes through the outer tub and connects the washing drum and the rotor. The drying drive unit includes: a motor; a pulley 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.

[0006] The washing drive unit is configured such that the rotating shaft of the motor connects the washing drum and the rotor. In order to wash or spin-dry clothes, it is necessary for the washing drive unit to control the rotation speed of the washing drum at a high level or change the rotation direction of the washing drum. By directly connecting the rotating shaft of the motor to the washing drum and the rotor, it is possible to easily control the rotation speed and rotation direction of the washing drum.

[0007] On the other hand, existing drying drive units generally use a power transmission mechanism such as a belt to connect the drying drum to the motor's rotating shaft. This is because dryers rarely need to maintain the drying drum's rotation speed at a high level or change its rotation direction, so rotating the drying drum via a power transmission mechanism like a belt is acceptable. Even so, if the rotation speed and direction of the drying drum can be changed, the movement of clothes inside the drum can be controlled; therefore, the dryer can be expected to shorten drying time and improve drying performance.

[0008] In existing dryers, one type includes a drying drive unit that connects the rotor and the drying drum using a speed reducer (Korean Patent Publication No. 10-2020-0065931). This drying drive unit is configured such that an input shaft connected to the rotor and an output shaft connected to the drying drum are coaxial. Therefore, shortening the drying time and improving drying performance is expected. However, there is a possibility that the heat supplied to the drying drum may be transferred to the interior of the drying drive unit, causing a decrease in the durability of the drying drive unit. Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] The technical problem to be solved by the present invention is to provide a garment processing device comprising: a power transmission unit, which is connected to an input shaft connected to a rotor and an output shaft connected to a drum, wherein the input shaft and the output shaft are coaxial.

[0011] Furthermore, the technical problem to be solved by the present invention is to provide a clothing treatment device that minimizes the deterioration of the durability of the power transmission part by means of dissipating the heat inside the power transmission part to the outside.

[0012] Technical solutions to the problem

[0013] This invention provides a garment processing apparatus, comprising: a drum, a drum body having a space for storing and drying objects (clothes, etc.), a front cover forming the front of the drum body, a rear cover forming the rear of the drum body, and a drum inlet penetrating the front cover and communicating with the interior of the drum body; a fixed panel disposed at a position spaced apart from the rear cover; a housing fixed to the fixed panel and having a housing body and a housing cover, the housing body having an internal receiving space and an opening communicating the receiving space with the outside, the housing cover being coupled to the housing body and closing the opening; and an input shaft penetrating the housing. The main body has one end located outside the receiving space and the other end located inside the receiving space; an output shaft passes through the housing cover, with one end fixed to the rear cover and the other end located inside the receiving space; a gear unit located inside the receiving space, which transmits the rotational motion of the input shaft to the output shaft; a motor having a stator fixed to the fixed panel or the housing and forming a rotating magnetic field and a rotor rotating by means of the rotating magnetic field; a fastening body fixed to the rotor and connecting the input shaft and the rotor; and a first heat dissipation part disposed on the fastening body, which forms airflow between the housing body and the rotor when the rotor rotates.

[0014] The first heat dissipation part may include blades protruding from the fastening body toward the housing body.

[0015] The first heat dissipation part can be configured such that a plurality of blades protruding from the fastening body toward the housing body are arranged radially around the input shaft.

[0016] The garment processing device may further include: a motor heat dissipation unit disposed on the rotor, which releases heat from inside the rotor to the outside of the rotor.

[0017] The rotor may include: a rotor body, the fastening body being fixed to the rotor body; a rotor circumferential surface extending from the rotor body in a manner surrounding the circumferential surface of the stator; and a plurality of permanent magnets arranged along the rotor circumferential surface with N poles and S poles alternately exposed; the motor heat dissipation portion may include: a rotor through-hole penetrating the rotor body and formed radially along the rotor body; and rotor blades protruding from the rotor body and extending along the edge of the rotor through-hole.

[0018] The garment handling device may further include a fastening body bending portion formed by bending the fastening body toward the rotor, and the blade may extend from the fastening body bending portion to the edge of the fastening body.

[0019] The garment handling device may further include: a second heat dissipation unit; which is disposed on the main body of the housing to release heat inside the housing space to the outside of the housing space.

[0020] The main body of the housing may include: a housing base; an input shaft through hole that penetrates the housing base for insertion of the input shaft; and a housing circumferential surface that extends from the edge of the housing base toward the fixed panel; the second heat dissipation part may include a housing protrusion that protrudes from the housing circumferential surface.

[0021] The main body of the housing may include: a housing base; an input shaft through hole that penetrates the housing base for insertion of the input shaft; and a housing circumferential surface that extends from the edge of the housing base toward the fixed panel; the second heat dissipation part may include a housing bending part that bends from the housing circumferential surface toward the receiving space.

[0022] The housing body may include: a housing base; an input shaft through hole that penetrates the housing base for insertion of the input shaft; and a housing circumferential surface that extends from the edge of the housing base toward the fixed panel; the second heat dissipation part may be composed of cooling fins protruding from the housing circumferential surface.

[0023] The garment processing device may further include: an input shaft through-hole penetrating the main body of the housing for insertion of the input shaft; a pipe-shaped input shaft support extending from the input shaft through-hole toward the rotor; a first input shaft bearing disposed on the input shaft support for rotatably connecting the input shaft to the input shaft through-hole; a second input shaft bearing disposed on the input shaft support between the first input shaft bearing and the fastening body for rotatably connecting the input shaft to the input shaft through-hole; a fastening body bending portion disposed on the fastening body to form a space for accommodating the input shaft support; and a bending portion through-hole penetrating the rotor for insertion of the fastening body bending portion.

[0024] The garment handling device may further include a damper located between the first bearing of the input shaft and the second bearing of the input shaft to reduce the vibration transmitted from the first bearing of the input shaft to the second bearing of the input shaft.

[0025] The gear unit may include: a gear ring fixed to the housing body and located inside the receiving space; a drive gear fixed to the input shaft and located inside the receiving space; a cage located inside the receiving space, with the other end of the output shaft fixed to the cage; and a driven gear rotatably fixed to the cage, connecting the drive gear and the gear ring.

[0026] A garment processing apparatus is provided, comprising: a drum providing space for storing garments; a drying unit supplying heated air to the drum; a fixed panel disposed at a position spaced apart from the rear of the drum; a power transmission unit including a housing, an input shaft, an output shaft, and a gear unit, the housing being fixed to the fixed panel, one end of the input shaft being located outside the housing and the other end being located inside the housing, one end of the output shaft being fixed to the rear of the drum and the other end being located inside the housing, the gear unit being located inside the housing and transmitting rotational motion of the input shaft to the output shaft; and a motor fixed to the fixed panel or the housing to rotate the input shaft; the housing comprising: a housing body having an opening on the side facing the fixed panel; a receiving space disposed in the housing body providing space for mounting the gear unit and communicating with the outside through the opening; and a housing cover being detachably fixed to the housing body to close the opening.

[0027] The garment handling device further includes a supply pipe disposed on the fixed panel to guide air to the rear of the roller.

[0028] The housing is fixed to the fixed panel and is located in a space separate from the space where the roller is located.

[0029] The motor includes: a stator fixed to the fixed panel or the housing to form a rotating magnetic field; and a rotor, one end of the input shaft fixed to the rotor, the rotor rotating by means of the rotating magnetic field.

[0030] The stator is fixed to the housing.

[0031] The housing cover includes: a cover body surrounding the open hole; an output shaft through hole penetrating the cover body for insertion of the output shaft; and an output shaft support portion protruding from the cover body toward the fixed panel and surrounding the output shaft through hole.

[0032] The garment handling device further includes a fastening part for fastening the housing cover to the fixed panel.

[0033] The motor includes: a stator that forms a rotating magnetic field; and a rotor, one end of the input shaft being fixed to the rotor, the rotor rotating by means of the rotating magnetic field; the cover body also includes a mounting portion, the stator being fixed to the mounting portion.

[0034] The cover body is located between the housing body and the fixed panel, and can prevent the housing body and the fixed panel from contacting each other.

[0035] The housing cover also includes a bent portion, which is formed by protruding from the area of ​​the cover body including the output shaft through hole toward the fixed panel.

[0036] The garment processing device further includes an output shaft bearing disposed inside the output shaft support portion, which fixes the output shaft so that it can rotate inside the output shaft support portion.

[0037] The garment processing device further includes a sealing element, fixed to the output shaft support, to prevent external gas from flowing into the output shaft bearing.

[0038] The garment handling device further includes a heat insulation section disposed on the housing cover to reduce the transfer of external heat to the receiving space.

[0039] Invention Effects

[0040] The present invention provides a garment processing device comprising: a power transmission unit, which connects an input shaft connected to a rotor and an output shaft connected to a roller, wherein the input shaft and the output shaft are coaxial.

[0041] Furthermore, the present invention provides a garment treatment apparatus that minimizes the deterioration of the durability of the power transmission section by dissipating heat from the interior of the power transmission section to the exterior. Attached Figure Description

[0042] Figure 1 and Figure 2 An example of a garment handling device is illustrated.

[0043] Figure 3 and Figure 4 The illustration shows an example of the internal structure of a garment handling device.

[0044] Figure 5 An example of a stator is shown in the figure.

[0045] Figure 6 An example of a rotor is illustrated.

[0046] Figures 7 to 10 An example of a power transmission unit is illustrated.

[0047] Figure 11 An example of a heat insulation section is illustrated.

[0048] Figure 12 and Figure 13 The diagram shows a cross-section of the power transmission section. Detailed Implementation

[0049] The following describes in detail an embodiment of the garment handling device with reference to the accompanying drawings.

[0050] Figure 1 An example of a garment handling device 100 is illustrated, which may include: a housing 1; and a drum 2 rotatably disposed inside the housing, providing space for storing garments (to be washed or dried). Figure 2 As shown, a drying section 3 can be installed inside the housing 1, which supplies high-temperature dry air (air with a temperature higher than room temperature and a dryness level higher than indoor air) to the drum 2 to remove moisture from the clothes.

[0051] like Figure 3 As shown, the housing 1 includes: a front panel 11, which forms the front surface of the garment handling device; and a base panel 17, which forms the bottom surface of the garment handling device. An inlet 111 communicating with the roller 2 is provided on the front panel 11, and the inlet 111 can be closed by a door 113.

[0052] A control panel 115 is provided on the front panel 11. The control panel 115 may include: an input unit for receiving control commands input by the user, and a display unit for outputting information such as control commands that the user can select. The input unit may include: a power supply request unit for requesting power supply to the garment handling device, a process input unit for allowing the user to select a desired process from a plurality of processes, and an execution request unit for requesting the start of the user-selected process.

[0053] The roller 2 can be a hollow cylinder. Figure 2 As an example, the illustration shows a roller 2 having a cylindrical roller body 21 open at the front and rear, a front cover 22 forming the front of the roller body 21, and a rear cover 23 forming the rear of the roller body 21. The front cover 22 may have a roller inlet 221 that communicates the interior of the roller body 21 with the outside, and the rear cover 23 may have an air inlet 233 that allows external air to flow into the roller body 21.

[0054] like Figure 3 As shown, the roller body 21 may also have lifting ribs 24. The lifting ribs 24 may be formed by a plate extending from the front cover 22 to the rear cover 23, protruding from the roller body 21 toward the rotation center of the roller 2 (protruding from the circumferential surface of the roller toward the rotation center of the roller).

[0055] When the clothing processing device 100 is a device used only for drying clothes, the roller 2 may not have a roller through hole that penetrates the roller body 21 to allow communication between the inside of the roller and the outside of the roller.

[0056] The roller 2 can be rotatably fixed to at least one of the first support portion 12 and the second support portion 15 of the main body. The accompanying drawing illustrates, as an example, a case where the rear cover 23 is rotatably fixed to the second support portion 15 of the main body via a motor 5 (drive unit), and the front cover 22 is rotatably connected to the first support portion 12 of the main body.

[0057] The main body first support portion 12 may include a support panel 121, which is fixed to the housing 1 and located between the front panel 11 and the front cover 22. The support panel 121 may be fixed to the base panel 17 so as to be located between the front panel 11 and the front cover 22. In this case, the rear surface (the surface facing the support panel) of the front panel 11 may be fixed to the support panel 121, and the lower end may be fixed to the base panel 17.

[0058] The support panel 121 may include: a support panel through hole 122, and a roller connecting body 123 connecting the support panel through hole 122 and the roller inlet 221 (see reference). Figure 2 The support panel through hole 122 and the feed port 111 are connected by a panel connecting body 125. The support panel through hole 122 is a means of penetrating the support panel 121 to connect the feed port 111 with the roller feed port 221.

[0059] like Figure 2As shown, the roller connecting body 123 can be formed by a pipe fixed to the rear side (the surface facing the roller inlet in the space provided by the support panel 121). One end of the roller connecting body 123 can surround the through hole 122 of the support panel, and the free end of the roller connecting body 123 can support the front cover 22. That is, the free end of the roller connecting body 123 can be inserted into the roller inlet 221, or it can contact the free end of the front cover 22 forming the roller inlet 221.

[0060] Figure 2 The illustration shows, as an example, a case where the free end of the roller connecting body 123 is in contact with the free end of the front cover 22. In this case, the roller connecting body 123 may have an annular connecting damper 124. The connecting damper 124 is a means of minimizing the risk of the roller inlet 221 separating from the roller connecting body 123 when the roller 2 rotates or vibrates (the risk of air leakage from inside the roller into the housing).

[0061] The panel connecting body 125 can be constructed from a tube fixed to the front surface of the support panel 121 (the surface facing the front panel within the space provided by the support panel). One end of the panel connecting body 125 can surround the support panel through hole 122, and the other end can be connected to the inlet 111. Therefore, clothing supplied to the inlet 111 can be moved to the roller body 21 through the panel connecting body 125, the support panel through hole 122, the roller connecting body 123, and the roller inlet 221.

[0062] The support panel 121 may have an exhaust port 126 extending through the panel connecting body 125, and a filter 127 may be detachably fixed to the exhaust port 126. The filter 127 may have any structure as long as it can filter impurities in the air moving from the roller 2 to the exhaust port 126.

[0063] The support panel 121 may further include roller support portions 128 and 129, which are used to prevent the roller 2 from sagging. The roller support portion may include a first roller 128 and a second roller 129 fixed to the support panel 121 and rotatably supporting the roller 2. Figure 3 The illustration shows the first roller 128 and the second roller 129 supporting the roller body 21. However, the rollers 128 and 129 can also support the front cover 22.

[0064] The main body second support 15 can be configured to be fixed to the fixed panel 151 of the box body 1 in a location spaced apart from the rear cover 23. Figure 4 As an example, the illustration shows the case where the fixing panel 151 is fixed to the base panel 17 and forms the rear side (rear side of the housing) of the clothing handling device 100.

[0065] The mounting panel 151 may include a drive unit mounting groove 152 that provides space for mounting the motor 5. The drive unit mounting groove 152 may be a groove in which the mounting panel 151 is bent in a recessed shape toward the rear cover 23 of the roller. The mounting panel 151 may also include a mounting panel through hole 153 through which a shaft (output shaft) for rotating the roller 2 passes, and the mounting panel through hole 153 may be located inside the drive unit mounting groove 152.

[0066] As described above, when the roller 2 is composed of a roller body 21, a front cover 22 fixed to the roller body, and a rear cover 23 fixed to the roller body, the rigidity of the roller is improved compared to a structure in which the open front and rear sides of the roller body 21 are rotatably connected to the support panel 121 and the fixed panel 151, respectively. This increased rigidity minimizes the deformation of the roller body 21 during rotation, thus minimizing the following problems: when the roller body 21 deforms, clothing gets caught in the space between the roller body and the support panel, and the space between the roller body and the fixed panel (minimizing the load on the motor).

[0067] like Figure 2 As shown, the drying unit 3 may include: an exhaust flow path 31 connected to the exhaust port 126, a supply flow path 32 for guiding the air inside the exhaust flow path 31 to the drum body 21, and a heat exchange unit 34 disposed inside the exhaust flow path 31 and sequentially performing air dehumidification and heating.

[0068] The exhaust flow path 31 may include: a first pipe 311 connected to the exhaust port 126, a second pipe 312 connected to the supply flow path 32, and a third pipe 313 connecting the first pipe 311 and the second pipe 312. The third pipe 313 may be fixed to the base panel 17.

[0069] The heat exchange section 34 can be any device capable of sequentially dehumidifying and heating the air flowing into the exhaust flow path 31. Figure 2As an example, the heat exchange section 34 is illustrated as a heat pump. That is, the heat exchange section 34 includes: a first heat exchanger (heat absorption section) 341 that removes moisture from the air flowing into the exhaust flow path 31; a second heat exchanger (heat generation section) 343 disposed inside the exhaust flow path 31 and heating the air passing through the heat absorption section 341; and a fan 349 that moves the air discharged from the roller 2 to the supply pipe 32 after passing through the heat absorption section and the heat generation section in sequence.

[0070] The heat-absorbing part 341 and the heat-generating part 343 are arranged sequentially along the direction of air movement and are interconnected by a refrigerant pipe 348 for forming a refrigerant circulation path. The refrigerant moves along the refrigerant pipe 348 through a compressor 345 located outside the exhaust path 31, and the refrigerant pipe 348 is provided with a pressure regulator 347 for adjusting the refrigerant pressure.

[0071] like Figure 4 As shown, the air inlet 233 provided on the rear cover 23 of the roller can be configured such that a plurality of holes surround the center of the rear cover 23 (the rotation center of the roller). In this case, the supply flow path 32 may include: a supply pipe 321 provided on the fixed panel 151 and forming a movement path for air discharged from the second pipe 312, a first flow path forming part 323 and a second flow path forming part 324 that guide the air inside the supply pipe 321 to the air inlet 233.

[0072] The supply pipe 321 can be bent toward the fixed panel 151 away from the rear cover 23 to form a flow path (air movement path). In addition, the supply pipe 321 can be annular around the drive unit mounting groove 152, and the second pipe 312 can be connected to the circumferential surface of the supply pipe 321.

[0073] The first flow path forming part 323 may surround the outer circumferential surface of the ring formed by the plurality of air inlets 233, and the second flow path forming part 324 may surround the inner circumferential surface of the ring formed by the plurality of air inlets 233.

[0074] The first flow path forming part 323 and the second flow path forming part 324 can be fixed to the rear cover 23 or to the supply pipe 321. Figure 4 The illustration shows, as an example, the flow path forming portions 323 and 324 fixed to the rear cover 23. Figure 4In this configuration, the free end of the first flow path forming portion 323 surrounds the outer circumferential surface of the flow path (annular flow path) formed by the supply pipe 321, and the free end of the second flow path forming portion 324 surrounds the inner circumferential surface of the flow path formed by the supply pipe 321. The first flow path forming portion 323 and the second flow path forming portion 324 may be made of rubber or felt, etc.

[0075] The motor 5 for rotating the drum 2 includes: a stator 51 located in the drive mounting slot 152 and forming a rotating magnetic field; and a rotor 52 that rotates by means of the rotating magnetic field. The rotational motion of the rotor 52 can be transmitted to the drum 2 via a power transmission section 6 fixed to the fixed panel 151, wherein the stator 51 is fixed to at least one of the fixed panel 151 and the power transmission section 6. If the stator 51 is fixed to the power transmission section 6, it has an advantageous effect on maintaining the coaxiality of the input shaft 64 and the output shaft 65 provided in the power transmission section 6 (minimizing the vibration of the garment handling device when the drum rotates and minimizing the deterioration of the durability of the power transmission section).

[0076] To prevent the motor 5, which is mounted in the drive unit mounting slot 512, from being exposed to the outside (in order to improve the durability of the motor and prevent safety accidents by preventing the motor from being exposed to the external environment), the mounting panel 151 may also include a cover panel 19 for preventing the motor 5 from being exposed to the outside. Furthermore, the cover panel 19 may also be in a shape that prevents the supply pipe 321 from being exposed to the outside (a shape surrounding the supply pipe). This is intended to minimize heat loss to the outside of the supply pipe 321 and to prevent safety accidents that may occur when the body comes into contact with the supply pipe 321.

[0077] like Figure 5 As shown, the stator 51 may include: an iron core 511 (annular iron core) with a through hole (iron core through hole) 511b at the center, a plurality of support rods 511a protruding radially from the outer circumferential surface of the iron core 511, an annular iron core insulation portion 512 for insulating the iron core, a plurality of support rod insulation portions 514 disposed on the iron core insulation portion and surrounding each of the support rods, and a coil (not shown) disposed on the support rod insulation portion 514.

[0078] The core insulation portion 512 is designed to form a ring shape with an insulation through-hole 513 at its center, as it needs to create a space to accommodate the core 511. For ease of assembly, the core insulation portion 512 may include a first insulating body 512a and a second insulating body 512b. In this case, the support rod insulation portion 514 may include a first insulating portion of the support rod disposed on the first insulating body 512a and a second insulating portion of the support rod disposed on the second insulating body.

[0079] The core insulation portion 512 may include a stator bracket 515, which may be configured as a plurality of brackets protruding from the inner circumferential surface of the core insulation portion 512 toward the center of the through hole 513 of the insulation portion. When the core insulation portion 512 includes a first insulation body 512a and a second insulation body 512b, the stator bracket 515 may include a first bracket 515a disposed on the first insulation body and a second bracket 515b disposed on the second insulation body and combined with the first bracket 515a.

[0080] The stator bracket 515 can be fixed to the power transmission part 6 by a stator fastening part like a bolt. For this purpose, the stator bracket 515 can have a fastening part through hole 516.

[0081] like Figure 6 As shown, the rotor 52 may include: a rotor body 521; a rotor circumferential surface 522 extending from the edge of the rotor body 521 toward the fixed panel 515 to form a space for accommodating the stator 51; and a plurality of permanent magnets 523 fixed to the rotor circumferential surface 522 with the N pole and S pole alternately exposed.

[0082] The motor 5 may further include a motor heat dissipation unit 53, which releases the heat generated by the stator 51 to the outside of the rotor 52. The motor heat dissipation unit 53 may include a plurality of rotor through holes 531 that penetrate the rotor body 521, and rotor blades 533 disposed in the rotor body 521 to form an airflow that moves the air inside the rotor to the rotor through holes 531.

[0083] The rotor through-hole 531 can be formed by a slit extending from the center of the rotor body 521 toward the rotor circumferential surface 522, and the rotor blade 533 can be formed by a plate protruding from the rotor body 521 toward the fixing panel 151. In this case, the rotor blade 533 preferably extends from the center of the rotor body 521 toward the rotor circumferential surface 522. The rotor through-hole 531 can be configured such that a plurality of slits are arranged radially with reference to the center (input shaft) of the rotor body 521, and the rotor blade 533 can be fixed to the edge of the rotor through-hole 531.

[0084] Figure 7 An example of the power transmission unit 6 is illustrated. 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 (facing the rotor) of the housing H; an output shaft 65 rotatably fixed to the upper surface (facing the fixed panel) of the housing H; and a gear unit disposed inside the housing to transmit the rotational motion of the input shaft 64 to the output shaft 65. The input shaft 64 may be a shaft with one end fixed to the rotor 52 and the other end located inside the housing H, and the output shaft 65 may be a shaft with one end fixed to the rear cover 23 and the other end located inside the housing H.

[0085] The housing H is preferably fixed to the fixed panel 151 and located in a space separate from the space where the roller 2 is installed (the internal space of the housing) (the external space of the housing). This is to minimize the heat (heat released by the roller or drying section) transferred to the inside of the housing H and the inside of the housing to improve the durability of the power transmission part 6.

[0086] The input shaft 64 can be... Figure 6 The shaft fastening part 54 shown is engaged with the rotor body 521. The shaft fastening part 54 may include: a disc-shaped fastening body 541; and a shaft engagement hole 543 that passes through the fastening body and engages with one end of the input shaft 64.

[0087] To facilitate the assembly of the fastening body 541 and the rotor body 521, the fastening body 541 may have a body protrusion 544, and the rotor body 521 may have a body protrusion through hole 524 for the body protrusion 544 to be inserted.

[0088] Furthermore, to improve the strength of the fastening body 541, the fastening body 541 may also include a fastening body bending portion 542. The fastening body bending portion 542 may be formed by bending the surface of the fastening body 541 facing the housing H towards the rotor body 521 in a concave shape. In this case, the rotor body 521 may have a bending portion through hole 525 through which the fastening body bending portion 542 passes.

[0089] The output shaft 65 can be inserted into the through hole 153 of the fixed panel and connected to the roller 2. The rear cover 23 can have a shaft bracket 231 for fixing the output shaft 65 (see reference). Figure 4 This is to distribute the stress acting on the center of the rear cover 23 when the output shaft 65 rotates.

[0090] To prevent the housing H from sagging and to minimize the deformation of the mounting groove 152, the housing H can be fixed to the mounting panel 151 by means of the transfer bracket 61 and the housing fastener 612.

[0091] like Figure 4 As shown, the transmission bracket 61 may have a bracket through hole 611 through which the output shaft 65 passes, and the housing fastening part 612 may be configured as a bolt connecting the housing H and the transmission bracket 61. The transmission bracket 61 may be made of the same material as the fixing panel 151, or it may be made of a material with higher strength than the fixing panel 151.

[0092] Although Figure 4 The illustration shows the transfer bracket 61 fixed to the surface of the fixing panel 151 facing the rear cover 23, but the transfer bracket 61 can also be fixed to the surface of the cover panel 19 in the space provided by the fixing panel 151.

[0093] like Figure 8 As shown, the housing H may include: a housing body 62, which is configured as a hollow cylindrical shape and has an opening on the surface facing the fixing body 151; and a housing cover 63, which is fixed to the housing body 62 and closes the opening.

[0094] The housing body 62 includes a receiving space 622 for mounting the gear unit G, and the receiving space 622 can be connected to the outside through the opening. The receiving space 622 is formed by a housing base 621a for fixing the input shaft 64 and a housing circumferential surface 621b extending from the edge of the housing base 621a toward the housing cover 63.

[0095] like Figure 9As shown, the housing body 62 has an input shaft support portion 625 extending from the housing base 621a towards the rotor 52. The input shaft support portion 625 may be constructed by a tube surrounding an input shaft through hole 626 that penetrates the housing body 62. That is, the input shaft through hole 626 penetrates the input shaft support portion 625 and is connected to the receiving space 622.

[0096] The input shaft 64, inserted into the input shaft through hole 626, is rotatably fixed to the input shaft support 625 via input shaft bearings 628 and 629. The input shaft bearings may include: a first input shaft bearing 628; and a second input shaft bearing 629, which is fixed inside the input shaft through hole 626 and located between the first input shaft bearing 628 and the rotor 52.

[0097] The free end of the input shaft support 625 can be inserted into the bending portion 542 of the fastening body provided in the shaft fastening portion 54. To secure the two input shaft bearings 628 and 629, the length of the input shaft support 625 must be extended. However, if the free end of the input shaft support 625 is inserted into the bending portion 542 of the fastening body, the following effect is achieved: the space required to house the motor 5 and the power transmission portion 6 can be minimized (the volume of the garment handling device is minimized).

[0098] The housing cover 63 can be of any shape, as long as it can open and close the openings on the housing body 62. Figure 8 As an example, the illustration shows a case where the housing cover 63 is composed of a disc-shaped cover body 631. The housing cover 63 can be fixed to the housing body 62 by a cover fixing plate 623 provided on the circumferential surface 621b of the housing.

[0099] The housing cover 63 may include: an output shaft support portion 635 extending from the cover body 631 toward the fixed panel 151; an output shaft through hole 632 penetrating the output shaft support portion 635 for insertion of the output shaft 65; and output shaft bearings 638 and 639 disposed on the output shaft support portion 635 to rotatably fix the output shaft 65 to the output shaft through hole 632.

[0100] The housing cover 63 includes a mounting portion 637 disposed on the cover body 631, and the stator 51 is fixed to the mounting portion 637. The mounting portion 637 can be of various shapes that can be joined with stator fasteners (bolts, etc.). The accompanying drawing illustrates, as an example, the mounting portion 637 as a hollow cylindrical shape.

[0101] A plurality of mounting portions 637 may be provided along the circumferential surface of the cover body 631, and the number of stator brackets 515 is preferably the same as that of the mounting portions 637.

[0102] When the mounting portion 637 is configured as a cylinder protruding from the cover body 631 toward the rotor 52, the cover fixing plate 623 preferably has a fixing plate through hole 624 for the mounting portion 637 to be inserted. This is to minimize the outer diameter of the cover fixing plate 623 (to minimize the space required for the housing).

[0103] To improve the strength of the housing cover 63, the cover body 631 may include a bending portion 634, which is formed by protruding from the region including the output shaft through hole 632 toward the fixed panel 151.

[0104] The output shaft bearings may include a first output shaft bearing 638 and a second output shaft bearing 639 fixed to the output shaft support 635 and located inside the output shaft through hole 631. Furthermore, to prevent external air from being supplied to the output shaft bearings 638 and 639, the housing cover 63 may also include a sealing member 633 fixed to the output shaft support 635, sealing the output shaft through hole 632.

[0105] The housing H is fixed to the fixed panel 151 by the housing fastening part 612. The stator 51 is fixed to the housing H by the stator fastening part, which is inserted into the through hole 516 of the fastening part, and fixed to the mounting part 637. The rotor 52 is fixed to the housing H by the input shaft 64. That is, since the stator 51 and the rotor 52 are fixed to the housing H (because the stator and rotor vibrate together with the housing), the coaxiality variation between the input shaft 64 and the output shaft 65 can be minimized.

[0106] The gear unit G may include: a gear ring 66, which is fixed to the circumferential surface 621b of the housing and located in the receiving space 622; a driving gear 69, which is fixed to the input shaft 64 and located inside the receiving space 622; a cage 67, which is located inside the receiving space 622 and fixes the other end of the output shaft 65; and a driven gear 68, which is rotatably fixed to the cage 67 and connects the driving gear 69 and the gear ring 66.

[0107] like Figure 9 As shown, the gear ring 66 may include: a gear body 661, which is fixed to the circumferential surface 621b of the housing; and gear teeth 662, which are arranged along the inner circumferential surface of the gear body.

[0108] The retainer 67 may include: a first base 671 located inside a gear body through hole 663 (a through hole formed by a plurality of gear teeth) penetrating the gear body, fixing one end of the output shaft 65; a second base 672 located inside the gear body through hole 663, having a base through hole 673 in the center; and a connecting shaft 675 connecting the first base and the second base to form the rotation shaft of the driven gear 68. Since the output shaft 65 is fixed to the first base, whether the output shaft 65 rotates depends on whether the retainer 67 rotates.

[0109] The driven gear 68 can be composed of a plurality of gears. The accompanying drawing illustrates, as an example, a driven gear having a first driven gear 681, a first driven gear 682, and a third driven gear 683. The input shaft 64 is inserted into the base through hole 673 and is coaxial with the output shaft 65. The gear teeth of the driving gear 69 are located in the space formed between the driven gears and mesh with the gear teeth of the driven gears 682, 683.

[0110] like Figure 10 As shown, in order to facilitate the connection or assembly of the gear ring 66 and the housing body 62, the gear body 661 may have a fastening protrusion receiving groove 664, and the housing base 621a may have a gear ring fastening protrusion 621c that is inserted into the fastening protrusion receiving groove 664.

[0111] To improve the durability of the gear unit G, the housing H may also include a heat insulation portion 7. The heat insulation portion 7 is a means of minimizing external heat transferred to the internal accommodating space 622 of the housing, and is preferably made of a material with a lower thermal conductivity than the housing H. That is, when the housing body 62 and the housing cover 63 are made of metal, the heat insulation portion 7 is preferably made of a non-metallic material such as plastic.

[0112] When the housing H is fixed to the fixed panel 151 and located in the external space of the box, the heat insulation part 7 is preferably made of a material with a thermal conductivity lower than that of the fixed panel 151.

[0113] The heat insulation part 7 can surround the entire housing H, or it can be provided only in the area of ​​the housing H facing the fixed panel 151. Figure 10 As an example, the heat insulation 7 is illustrated only on the housing cover 63 (the area facing the fixed panel).

[0114] like Figure 11As shown, the heat insulation part 7 can be integrally formed with the housing cover 63. As an example, the heat insulation part 7 and the housing cover 63 can be formed by insert injection molding, in which molten material (plastic, etc.) is injected into a mold that contains the housing cover 63.

[0115] The heat insulation part 7 may include: a cover heat insulation body 71, which is fixed to the cover body 631; and a support heat insulation body 72, which surrounds the circumferential surface of the output shaft support part 635. Figure 10 As shown, the cover insulation body 71 may include at least one of a first insulation body 711 formed in the space provided by the cover body 631 and facing the surface of the fixed panel 151, and a second insulation body 712 formed in the space provided by the cover body 631 and facing the surface of the housing body 62.

[0116] When the cover heat insulation body 71 includes both a first heat insulation body 711 and a second heat insulation body 712, the cover heat insulation body 71 preferably further includes a connecting body 713, which penetrates the cover body 631 and connects the first heat insulation body 711 and the second heat insulation body 712. In this case, the cover body 631 should have a cover through hole 636 for providing the connecting body 713 (see reference). Figure 11 ).

[0117] like Figure 11 As shown, the heat insulation portion 7 may further include a mounting portion heat insulation body 73 surrounding the mounting portion 637. This is to minimize the transfer of heat from the motor 5 to the cover body 631 through the mounting portion 637. The mounting portion heat insulation body 73 preferably surrounds the entire circumference of the mounting portion 637.

[0118] To facilitate the connection between the stator 51 and the mounting portion 637, the garment handling device may further include a stator position setting portion 74. The stator position setting portion 74 may include a bracket protrusion 741 (see reference 741) disposed on the stator bracket 515. Figure 5 ), and a protrusion receiving groove 742 disposed on the second heat insulation body 712 for the bracket protrusion 741 to be inserted into (see reference ). Figure 9 ).

[0119] Unlike as described above, the heat insulation portion can be fixed to the fixed panel 151 and located between the housing cover 63 and the fixed panel 151, or fixed to the fixed panel 151 and located between the fixed panel 151 and the rear cover 23. In this case, the heat insulation portion can surround the through hole 153 of the fixed panel and can be composed of a plate with a diameter larger than that of the cover body.

[0120] In the power transmission unit 6 of the above structure, the gear unit G is located inside the receiving space 622 formed by the housing body 62. That is, the gear ring 66, the driving gear 69, and the driven gear 68 do not detach from the receiving space 622. The receiving space 622 is provided only in the housing body 62 to keep the gear unit G as far away as possible from the fixed panel 151 (a heat source that releases heat from inside the housing to outside the housing). As a result, the clothing handling device 100 can minimize the degradation of the durability of the gear unit G.

[0121] On the other hand, in the power transmission unit 6 of the above structure, when the driving gear 69 and driven gear 68 rotate, the repulsive force acting between the gears is transmitted to the input shaft 64 and output shaft 65. That is, when the driving gear and driven gear rotate, an external force acting away from the housing H or toward the interior of the housing H is input to the input shaft 64 and output shaft 65. This situation is more clearly observed when the driving gear, driven gear, and gear ring are helical gears.

[0122] like Figure 12 As shown, in order to minimize the risk of the input shaft 64 dislodging from the input shaft bearings 628, 629 or the input shaft support 625 caused by external forces acting on the input shaft 64, the garment handling device 100 may include a damper 9.

[0123] The damper 9 is disposed in the input shaft through hole 626 between the first input shaft bearing 628 and the second input shaft bearing 626, and is a means of reducing the transmission of vibration from the first input shaft bearing 628 to the second input shaft bearing 629.

[0124] The damper 9 can be composed of an elastic body (such as rubber) fixed to the circumferential surface of the input shaft 64 and located between the first bearing 628 and the second bearing 629 of the input shaft. Figure 8 As shown, the damper 9 may include: a damping body 91, the diameter of which is longer than the diameter of the input shaft 64 but shorter than the diameter of the input shaft through hole 626 (the diameter of the damping body is shorter than the outer diameter of the input shaft bearing); and a damping body through hole 92, which penetrates the damping body 91 for the input shaft 64 to be inserted.

[0125] like Figure 12 As shown, in order to minimize the vibration of the housing H, preferably, one side of the damping body 91 contacts the first bearing 628 of the input shaft, and the other side of the damping body 91 contacts the second bearing 629 of the input shaft.

[0126] Furthermore, the input shaft support portion 625 may also include a stop 627 (first stop) protruding towards the center of the input shaft through hole 626 and located between the first input shaft bearing 628 and the second input shaft bearing 629. The first stop 627 serves as a means of limiting the range of movement of the first input shaft bearing 628 toward the second input shaft bearing 629, or as a means of limiting the range of movement of the second input shaft bearing 629 toward the first input shaft bearing 628.

[0127] Since the input shaft 64 is engaged with the circumferential surface of the damping body 91 (since the damping body can rotate together with the input shaft), the radius of the damping body 91 (the outer radius of the damper) is preferably set to be shorter than the distance from the center of the input shaft through hole 626 to the first stop 627.

[0128] To minimize the problem of the output shaft bearings 638 and 639 detaching from the housing H due to external forces acting on the output shaft 65, the output shaft support 635 may include a stop 635c (second stop) for limiting the range of the first output shaft bearing 638 and the second output shaft bearing 639. Figure 11 As shown, the output shaft support 635 may include a first mounting portion 635a provided with the first bearing 638 of the output shaft and a second mounting portion 635b provided with the second bearing 639 of the output shaft, and the second stop 635c may be formed by a protrusion located between the first mounting portion 635a and the second mounting portion 635b.

[0129] To minimize heat transfer to the interior of the housing H and to release the heat from the housing H to the outside, the garment handling device may also include a heat dissipation unit 8. For example... Figure 8 As shown, the heat dissipation part 8 may include at least one of the following: a first heat dissipation part 81 disposed on the fastening body 541 and discharging air between the housing body 62 and the rotor 52 to the outside of the rotor 52, and a second heat dissipation part 82 disposed on the circumferential surface 621a of the housing body and releasing heat inside the receiving space 622 to the outside of the receiving space 622.

[0130] The first heat dissipation part 81 may be a blade protruding from the fastening body 541 toward the housing base 621a. Since the fastening body 541 and the first heat dissipation part 81 rotate when the rotor 52 rotates, the air between the rotor 52 and the housing body 62 is discharged to the outside of the rotor 52 through the rotor through hole 531, etc., and the temperature of the housing H will decrease during this process.

[0131] Figure 8As an example, the illustration shows a plurality of blades of the first heat dissipation part 81 arranged radially around the shaft coupling hole 543. The fastening body 541 may also have only one blade.

[0132] On the other hand, when the fastening body 541 has a fastening body bend 542, the first heat dissipation part 81 is preferably composed of blades extending from the fastening body bend 542 to the edge of the fastening body 541. This can increase the air exhaust volume by increasing the height of the blades (the length of the blades in the direction from the fastening body to the housing body).

[0133] The second heat dissipation section 82 may include at least one of a housing protrusion (cooling fins, etc.) protruding from the circumferential surface 621b of the housing, and a housing bending section (bending groove, etc.) bending from the circumferential surface 621b of the housing towards the receiving space 622. Because the second heat dissipation section 82 increases the surface area of ​​the circumferential surface 621b of the housing, it facilitates heat exchange between the housing body 62 and the external air.

[0134] The following is for reference Figure 13 Explain the operation process of the power transmission unit 6 mentioned above.

[0135] Figure 13 The illustration shows the interior of the housing body 62. When the rotor 52 rotates, the input shaft 64 rotates. When the driving gear 69 is rotated by the input shaft 64, the driven gears 681, 682, and 683, which mesh with the driving gear 69, also rotate. Since the driven gears 681, 682, and 683 are engaged with the gear ring 66 fixed to the housing body 62, when the driven gear 68 rotates, the cage 67 and the output shaft 65 rotate, and the roller 2 fixed to the output shaft 65 also rotates.

[0136] A portion of the heat supplied to the drum 2 through the drying section 3 dissipates to the outside of the drum 2 (the inside of the housing), while the heat inside the housing is released to the outside. If the heat released from the housing 1 is transferred to the housing H of the power transmission section 6, the durability of the gear unit G and the like will deteriorate. However, since the heat insulation section 7 in the garment processing device 100 minimizes the transfer of heat to the housing H, the risk of deterioration in the durability of the gear unit G can be reduced.

[0137] Furthermore, since the garment processing device 100 is provided with a first heat dissipation part 81 provided on the fastening body 541 connecting the input shaft 64 and the rotor 52, a second heat dissipation part 82 provided on the circumferential surface 621b of the housing, and a motor heat dissipation part 53 provided on the rotor, the overheating of the stator 51 and the overheating of the accommodating space 622 when the rotor 52 rotates (when the drum rotates) can be minimized.

[0138] The above-described garment processing device can be modified into various different forms, and the scope of the present invention is not limited to the above embodiments.

Claims

1. A garment processing device, characterized in that, include: Rollers provide space for storing clothes; The drying section supplies heated air to the drum; A fixed panel is positioned at a distance from the rear of the roller; The power transmission unit includes a housing, an input shaft, an output shaft, and a gear unit. The housing is fixed to the fixed panel. One end of the input shaft is located outside the housing, and the other end is located inside the housing. One end of the output shaft is fixed to the rear of the roller, and the other end is located inside the housing. The gear unit is located inside the housing and transmits the rotational motion of the input shaft to the output shaft. as well as A motor includes a stator and a rotor, the stator being fixed to the housing and forming a rotating magnetic field, one end of the input shaft being fixed to the rotor, and the rotor rotating by means of the rotating magnetic field; The housing includes: The main body of the housing has an opening on the side facing the fixed panel; A receiving space is provided in the main body of the housing, providing space for installing the gear unit, and communicating with the outside through the opening; The housing cover is detachably fixed to the housing body to close the opening; and A heat insulation section is provided on the housing cover to reduce the transfer of external heat to the interior of the housing space.

2. The garment processing device according to claim 1, characterized in that, Also includes: A supply conduit, located on the fixed panel, directs air to the rear of the roller.

3. The garment processing device according to claim 1, characterized in that, The housing is fixed to the fixed panel and is located in a space separate from the space where the roller is located.

4. The garment processing device according to claim 1, characterized in that, The housing cover includes: The cover body surrounds the open hole; An output shaft through-hole extends through the cover body for insertion of the output shaft; and The output shaft support protrudes from the cover body toward the fixed panel and surrounds the output shaft through hole.

5. The garment processing apparatus according to claim 4, characterized in that, Also includes: The fastening part secures the housing cover to the fixed panel.

6. The garment processing apparatus according to claim 4, characterized in that, The cover body also includes a mounting part, and the stator is fixed to the mounting part.

7. The garment processing apparatus according to claim 4, characterized in that, The cover body is located between the housing body and the fixed panel, and can prevent the housing body and the fixed panel from contacting each other.

8. The garment processing apparatus according to claim 4, characterized in that, The housing cover also includes: The bent portion is formed by protruding from the area of ​​the cover body, including the output shaft through hole, toward the fixed panel.

9. The garment processing apparatus according to claim 4, characterized in that, Also includes: An output shaft bearing is disposed inside the output shaft support portion, thereby fixing the output shaft so that it can rotate inside the output shaft support portion.

10. The garment processing apparatus according to claim 9, characterized in that, Also includes: A sealing element is fixed to the output shaft support to prevent external gas from flowing into the output shaft bearing.

11. The garment processing apparatus according to claim 4, characterized in that, The heat insulation component includes: The heat insulation body is fixed to the cover body; and The heat insulation body of the support part surrounds the circumferential surface of the output shaft support part.

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