Laundry treating apparatus

Abstract

The present application relates to a filter unit for filtering air, the filter unit including a frame unit provided with an inner frame and an outer frame coupled to the inner frame, a filter fixed by coupling between the inner frame and the outer frame, and a shape maintaining unit inserted between the inner frame and the outer frame to maintain the shape of the frame unit.

Description

Technical Field

[0001] This disclosure relates to a garment processing apparatus for drying clothes. Background Technology

[0002] The term "clothing handling equipment" is a general term for equipment used for washing clothes, equipment used for drying clothes, and equipment capable of washing and drying clothes.

[0003] In conventional garment processing equipment capable of drying clothes, some garment processing devices include: a drum that provides space for storing clothes; a duct that forms a flow path for resupplying air exhausted from the drum back to the drum; a first heat exchanger for cooling the air introduced from the drum into the duct to remove moisture contained in the air; a second heat exchanger for heating the air that has passed through the first heat exchanger; and a fan for moving the air that has passed through the second heat exchanger to the drum. In conventional garment processing equipment with the above structure, since the air exhausted from the drum is dehumidified and heated while passing through the heat exchanger and then resupplying to the drum, foreign substances such as lint may remain in the heat exchanger. To solve this problem, some conventional garment processing equipment includes a filter (EP2691567B1) for filtering the air supplied to the first heat exchanger.

[0004] However, in the case of commercial dryers that can perform drying cycles such as sterilization, wrinkle removal, deodorization, and drying by supplying steam or hot air to large quantities of clothing, the drying capacity is increased compared to ordinary dryers. Therefore, there is a need for a commercial dryer designed with a much larger volume and a higher flow rate of supplied hot air in order to quickly dry large quantities of clothing.

[0005] Therefore, the importance of filters is emphasized, because the increased amount of foreign matter such as lint and its accumulation on the heat exchanger can reduce the heat transfer area and easily reduce drying performance.

[0006] However, given the specific nature of commercial dryers, it is difficult to ensure the structural robustness of the filters provided in existing conventional dryers, and due to poor accessibility, there are difficulties in regularly inspecting and cleaning the condition of the filters.

[0007] Furthermore, during the cleaning and assembly of the filter, the filter does not come into close contact with the inner surface of the pipe, resulting in a decrease in filtration performance and consequently a decrease in hygiene. Summary of the Invention

[0008] Technical issues

[0009] One object of this application is to provide a garment processing device that includes a filter with improved structural robustness.

[0010] Furthermore, the purpose of this application is to provide a garment processing device that includes a filter to ensure filtration reliability.

[0011] Furthermore, the purpose of this application is to provide a garment processing device including a filter, which reduces production costs and improves processability.

[0012] Furthermore, the purpose of this application is to provide a garment processing device that includes a filter that is easy to clean and replace.

[0013] Furthermore, the purpose of this application is to provide a garment processing device that includes a filter that allows visual inspection of the degree of lint buildup, thereby improving maintainability.

[0014] Technical solution

[0015] This application provides a filter unit for filtering air, the filter unit comprising: a frame unit including an inner frame and an outer frame connected to the inner frame; a mesh screen fixed by the connection of the inner frame and the outer frame; and a shape retainer inserted between the inner frame and the outer frame to maintain the shape of the frame unit.

[0016] The shape retainer may be made of a material with higher stiffness than the frame unit to prevent the frame unit from deforming.

[0017] The frame unit can accommodate a connecting magnet that generates magnetic force within the frame unit to enable attachment to and detachment from an object.

[0018] The inner frame may include a connecting magnet receiving groove, in which the connecting magnet is received, and the connecting magnet may be received in the connecting magnet receiving groove to be spaced apart from the corner portion connecting the side portion of the inner frame and the side portion of the outer frame.

[0019] The connecting magnet can be made of an elastic material.

[0020] The shape retainer can be configured as a closed curve shape that extends through the center of each side of the frame.

[0021] The shape retainer may be made of a metallic material and includes at least one weld line produced by welding the ends of the shape retainer to form a closed loop.

[0022] A fusion line can be formed at the corner by fusing the ends of the corners of the inner frame and the outer frame. The shape retainer can include at least one weld line generated by welding the ends of the shape retainer to form a closed loop, and the weld line can be formed at a point that does not interfere with the fusion line when the shape retainer is inserted into the frame unit.

[0023] The frame unit can be configured as a rectangular shape, wherein the length of one pair of sides is shorter than the length of another pair of sides, and the welding line of the shape retainer can be formed at a portion of the shorter pair of sides inserted into the side of the frame unit.

[0024] The protrusions and depressions can be formed as protrusions or recesses from the contact surfaces of the inner frame and the outer frame facing each other, and the outer frame can be connected to the inner frame by engaging the protrusions and depressions with each other.

[0025] The mesh screen can be fixed by the pressure generated by the engagement of the protrusions and the connection between the shape retainer and the frame unit.

[0026] In the protrusions and recesses, the protrusions formed to protrude from the contact surface may include: a first extension extending from the contact surface; and a second extension extending from an end of the first extension in a shape at least partially different from that of the first extension.

[0027] In a cross section perpendicular to the protrusion direction from the contact surface, at least a portion of the cross section of the second extension may not overlap with the cross section of the first extension relative to the protrusion direction.

[0028] In a cross-section extending perpendicular to each side of the frame, the end of the second extension extending from the end of the first extension can be formed as a circle.

[0029] In a cross-section extending perpendicular to each side of the frame, the second extension may be configured as a hook on one side of the end of the first extension.

[0030] A shape retainer receiving groove may be formed in at least one of the inner frame or the outer frame, and the shape retainer is received in the shape retainer receiving groove.

[0031] Multiple protrusions and recesses can be provided, and the multiple protrusions and recesses can be arranged in a row on each side of the frame unit along the direction from the inside to the outside of the frame unit.

[0032] The second extension may be configured to include at least a pair of hooks formed from the end of the first extension so that they face each other.

[0033] The second extension may be configured to include at least a pair of hooks formed from the end of the first extension toward one side of the frame.

[0034] The protrusion includes: a first protrusion protruding from a surface of the inner frame facing the outer frame; and a second protrusion formed to be recessed in a surface of the outer frame facing the inner frame to engage with the first protrusion. The outer frame can be connected to the inner frame through the engagement of the first and second protrusions.

[0035] A shape retainer receiving groove accommodating the shape retainer may be formed in at least one of the inner frame or the outer frame.

[0036] Multiple protrusions and recesses can be provided, and the multiple protrusions and recesses can be arranged in a row on each side of the frame unit along the direction from the inside to the outside of the frame unit, and the shape retainer receiving groove can be formed between the multiple protrusions and recesses.

[0037] The shape retainer may be made of a material whose torsional stiffness is equal to or greater than the torsional moment of the frame generated by the tension applied by the mesh screen.

[0038] A magnetic field source can be housed within the frame unit, and a magnetic sensor detects magnetic signals from the magnetic field source.

[0039] A magnetic field source can be housed in the frame unit, a magnetic sensor detects a magnetic signal from the magnetic field source, and the magnetic field source can be fixed in the inner frame to replace a portion of the first concave-convex portion and housed in the second concave-convex portion.

[0040] The sealing rib may be formed to project outward from at least a portion of the edge of the outer surface of the outer frame, and when the frame unit is fixed to the object, the sealing rib may prevent air from flowing through the joint between the outer peripheral surface of the frame and the object.

[0041] The handle may be configured to protrude from at least a portion of the outer frame to the outside of the pipe for gripping by a user.

[0042] Beneficial effects

[0043] This application provides a garment processing device that includes a filter with improved structural robustness.

[0044] In addition, this application provides a garment processing device that includes a filter to ensure filtration reliability.

[0045] In addition, this application provides a garment processing device including a filter, which reduces production costs and improves processability.

[0046] In addition, this application provides a garment processing device that includes a filter that is easy to clean and replace.

[0047] In addition, this application provides a garment processing device that includes a filter that allows visual inspection of the extent of lint buildup, thereby improving maintainability. Attached Figure Description

[0048] Figure 1 and Figure 2 An exemplary garment processing device is shown.

[0049] Figure 3 An exemplary internal configuration of a garment processing device is shown.

[0050] Figure 4 An exemplary garment processing device is shown.

[0051] Figure 5 An exemplary door of a garment handling device is shown.

[0052] Figure 6 and Figure 7 An exemplary front configuration of a garment handling device is shown.

[0053] Figure 8 An exemplary sealing structure for a garment processing device is shown.

[0054] Figure 9 An exemplary arrangement of the drive unit of the garment handling device is shown.

[0055] Figure 10 An exemplary rear configuration of the garment handling device is shown.

[0056] Figure 11 An exemplary roller structure of a garment handling device is shown.

[0057] Figure 12 This is an exemplary exploded view showing the roller.

[0058] Figure 13 An exemplary piping module of a garment processing device is shown.

[0059] Figure 14 An exemplary circulating fan for a garment processing device is shown.

[0060] Figure 15 An exemplary drying module of a garment processing device is shown.

[0061] Figure 16 An exemplary internal configuration of the drying module is shown.

[0062] Figure 17 A simplified structure is shown in which an auxiliary heat exchanger for a garment processing device is installed.

[0063] Figure 18 An exemplary opening of the pipe module is shown.

[0064] Figure 19 This is an exemplary exploded view showing the first filter of the pipeline module.

[0065] Figure 20 An exemplary process for manufacturing the framework of the first filter is shown.

[0066] Figure 21 This is an exemplary flowchart illustrating a method for manufacturing a first filter.

[0067] Figure 22 An exemplary outer frame for the first filter is shown.

[0068] Figure 23 An exemplary inner frame of the first filter is shown.

[0069] Figure 24 An exemplary protrusion and depression of the first filter is shown.

[0070] Figure 25 An exemplary shape of the protrusion and recess is shown.

[0071] Figure 26 An exemplary framework for the first filter is shown.

[0072] Figure 27 An exemplary shape retainer for the first filter is shown.

[0073] Figure 28 An exemplary process for assembling the first filter is shown.

[0074] Figure 29 An exemplary first filter is shown.

[0075] Figure 30 It shows along Figure 29 An exemplary cross section taken by line A-A'.

[0076] Figure 31 It shows along Figure 29 An exemplary cross section taken by line B-B'.

[0077] Figure 32 It shows along Figure 29 An exemplary cross section taken by line C-C'.

[0078] Figure 33 An exemplary second filter for the pipeline module is shown.

[0079] Figure 34 This is an exemplary exploded view showing the second filter.

[0080] Figure 35 An exemplary filter support for a pipeline module is shown.

[0081] Figure 36 An exemplary piping module including a first filter and a second filter is shown. Detailed Implementation

[0082] Embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. Throughout this disclosure, even in different embodiments, the same or similar reference numerals are assigned to the same or similar components, and their descriptions are replaced by the first description. As used herein, singular expressions include plural indicators unless the context clearly indicates otherwise. Furthermore, to at least make the subject matter of the embodiments disclosed herein clear, detailed descriptions of related known technologies will be avoided in describing embodiments of this disclosure. Moreover, it should be noted that the accompanying drawings are for ease of understanding of the embodiments disclosed herein and should not be construed as limiting the technical concept of this disclosure.

[0083] Figure 1 An embodiment of the garment processing apparatus according to the present disclosure is shown.

[0084] The garment processing apparatus disclosed herein can be configured as a dryer capable of performing any drying process for removing moisture from garments.

[0085] The clothing processing apparatus disclosed herein may include a drying body 10 capable of containing clothing, a drying module 20 capable of supplying at least one of hot air (hot air) or steam to the drying body 10, and a duct module 30 providing a flow path through which air within the drying body 10 may be discharged to the drying module 20 or discharged to the outside.

[0086] The garment processing apparatus of this disclosure can be configured as a commercial dryer. Therefore, the garment processing apparatus of this disclosure can be installed in environments where multiple users repeatedly perform more drying cycles than a household dryer, or in environments where a large quantity of garments, such as blankets or quilts, should be dried. Therefore, there is a need to provide the garment processing apparatus of this disclosure to accommodate a larger garment capacity than a household dryer and to rapidly perform drying cycles by supplying more hot air than a household dryer.

[0087] Therefore, in the clothing processing device disclosed herein, the volume of the drying body 10 needs to be larger than that of the configuration used to hold clothing in a household dryer, the drying module 20 also needs to be larger than the drying module of a household dryer to generate a large amount of hot air, and the duct module 30 also needs to be larger than the duct module of a household dryer to allow sufficient flow to move.

[0088] Therefore, the garment processing apparatus of this disclosure can be configured such that at least one of the drying module 20 or the duct module 30 is configured to be separate from the drying body 10 so as to be detachably connected to the drying body 10.

[0089] Therefore, in the garment processing apparatus of this disclosure, the volume of the drying body 10 can be sufficiently increased without being limited by the installation space of the drying module 20 or the duct module 30. Thus, the drying body 10 can be provided to accommodate a large quantity of garments without difficulty.

[0090] Furthermore, in the garment processing apparatus of this disclosure, the volume of the drying module 20 can be sufficiently increased without being limited by the installation space of the drying body 10 or the duct module 30. Therefore, the drying module 20 can also increase the volume of the heat source for heating air or generating steam, thereby generating sufficient hot air to dry a large quantity of garments or generating sufficient steam to disinfect and sterilize the garments.

[0091] Furthermore, in the garment processing apparatus of this disclosure, the volume of the duct module 30 can be sufficiently increased without being limited by the installation space of the drying body 10 or the drying module 20. Therefore, the duct module 30 can ensure a flow path through which sufficient airflow moves to the extended drying body 10 and the drying module 20, and the large-capacity filter, described later, can also be stably installed.

[0092] When the drying body 10 is provided with an opening through which clothes are put in, the drying module 20 and the pipe module 30 can be configured to communicate with the drying body 10 at a position that does not interfere with the opening.

[0093] When the opening of the drying body 10 is located at the front, the drying module 20 can be located at any of the top, bottom, sides and rear of the drying body 10, and the pipe module 30 can be located at any of the top, bottom, sides and rear of the drying body 10 in a position that does not interfere with the drying module 20.

[0094] For example, in the garment processing apparatus disclosed herein, the drying module 20 may be disposed at the rear of the drying body 10.

[0095] Therefore, compared to when the drying module 20 is located at the top or bottom of the drying body 10, the heating or heat exchange performance can be maximized by further increasing the volume of the drying module 20. Furthermore, by placing the drying module 20 at the rear of the drying body 10 instead of at the side, the overall width of the garment processing apparatus of this disclosure is reduced. Therefore, multiple garment processing devices of this disclosure can be easily arranged in a limited space. Moreover, when the drying module 20 is located at the rear of the drying body 10, the flow direction of the hot air exhaust is consistent with the flow direction inside the drying body 10, thereby reducing the overall flow resistance.

[0096] The pipe module 30 can be disposed at the top or bottom of the drying body 10. Therefore, the overall width of the clothing processing device of this disclosure can be reduced compared to when the clothing processing device of this disclosure is disposed on one side of the drying body 10.

[0097] The pipe module 30 can be located at the bottom of the drying body 10. Therefore, in the clothing processing device of this disclosure, the opening of the drying body 10 can be further spaced upward from the ground, and the user can easily put in and take out a large number of clothes through the opening.

[0098] Figure 2 An embodiment of the garment processing device of this disclosure is shown, in which components can be detachably mounted.

[0099] The garment processing apparatus disclosed herein can be configured such that at least one of the drying body 10, drying module 20 or duct module 30 is manufactured separately from the other drying body 10, drying module 20 or duct module 30, and can be detachably connected to allow air communication.

[0100] Typically, the drying module 20 may house heavier components for heating air or supplying steam, and is heavier than the drying body 10 or the piping module 30. Furthermore, the drying module 20 may have more electronic components housed within its internal components than the drying body 10 and the piping module 30, resulting in a higher frequency of repair and maintenance.

[0101] Therefore, the drying module 20 can be designed to be detachable from the drying body 10 in the garment processing apparatus of this disclosure. Thus, the garment processing apparatus of this disclosure can be easily installed by transporting the drying module 20 separately from the drying body 10. When there is a problem with the electronic components of the drying module 20, it can be replaced separately from the drying body 10, and since some components of the drying module 20 can be replaced by separating it from the bulky drying body 10, repair and maintenance are facilitated.

[0102] The garment processing device disclosed herein can integrate the drying body 10 and the duct module 30. Therefore, the connection between the drying body 10 and the duct module 30 can be strengthened, thereby eliminating the possibility of air leakage from the drying body 10 to the outside.

[0103] Furthermore, even with strong vibrations caused by the movement of a large number of clothes within the drying unit 10, the drying unit 10 and the piping module 30 can be prevented from arbitrarily separating. The drying unit 10 and the piping module 30 can be housed within a single cabinet and can be manufactured and transported simultaneously.

[0104] This is just one implementation method; the drying body 10 and the pipe module 30 can be configured as separate modules that can be detachably connected to each other.

[0105] Figure 3 An embodiment of the internal structure of the garment processing apparatus of this disclosure is shown.

[0106] The garment processing device disclosed herein can be configured as an exhaust type, and therefore, although the drying module 20 and the drying body 10 can be arranged to communicate with each other, and the drying body 10 and the duct module 30 can be arranged to communicate with each other, the drying module 20 and the duct module 30 can be arranged not to communicate with each other.

[0107] As shown in the figure, when the garment processing equipment of this disclosure is configured as a circulation type, the drying body 10, the duct module 30, and the drying module 20 can be arranged such that the air is interconnected. Therefore, as long as the installation space is ensured, the garment processing equipment of this disclosure can be installed without difficulty, regardless of whether the corresponding indoor space is connected to the outside.

[0108] The drying unit 10 may include a cabinet 110 forming the exterior and having an opening, a door 120 for opening and closing the opening, and a roller 150 rotatably disposed inside the cabinet 110 to accommodate clothing inserted through the opening.

[0109] The garment processing apparatus disclosed herein may include a drive unit 160 for rotating a drum 150. Thus, garments contained in the drum 150 may be dried by exposure to hot air supplied to the drum 150 as they rise and fall within the drum 150 due to the rotation of the drum 150.

[0110] The drive unit 160 can be installed in the drying body 10.

[0111] Therefore, the roller 150 and all components for rotating the roller 150 can be installed in the drying body 10, and repair and maintenance can be performed independently of the components of the piping module 30 or the drying module 20. Furthermore, since the entire configuration of the drive unit 160 is independent of the piping module 30, the piping module 30 does not need to be configured to allow the drive unit 160 to pass through or be installed therein, thereby improving the sealing performance of the piping module 30.

[0112] The duct module 30 may include a circulating fan 330 and a fan container 320 disposed at the rear of the duct body 310. The duct body 310 is disposed below the roller 150 to receive and move the air discharged from the roller 150. The fan container 320 provides space for the circulating fan 330.

[0113] The duct body 310 can be configured such that all its outer surfaces are sealed to prevent air leakage to the outside, except for the inflow of air from the roller 150.

[0114] The duct body 310 can be configured in any shape, as long as it allows air discharged from the roller 150 above it to flow in and be conveyed to the rear.

[0115] For example, the pipe body 310 can be configured as a shell shape with all shielded surfaces, which is positioned below the cabinet 110 to support the cabinet 110.

[0116] Alternatively, the duct body 310 can be housed inside the cabinet 110 and configured such that a frame (e.g., a cuboid) housed inside the cabinet 110 and supporting multiple components within the cabinet 110 is connected to a panel or similar element to shield the interior of the frame. For example, the drying body 10 and the duct module 30 can be installed in a single cabinet 110. The drying body 10 and the duct module 30 can be configured to share a single cabinet 110. The drying body 10 and the duct module 30 can be housed within the cabinet 110 forming the exterior, or the duct module 30 can be installed at the bottom of the drying body after the drying body 10 has been manufactured. Therefore, leakage of hot air or steam between the drying body 10 and the duct module 30 can be prevented, installation and transport can be facilitated, and aesthetics can be improved.

[0117] The fan housing 320 can be attached to the duct body 310 or supported inside the duct body 310 to house the circulating fan 330.

[0118] The fan housing 320 can be positioned further rearward than the front of the duct body 310 to ensure that air exhausted from the front of the roller 150 can flow into the space. Furthermore, the fan housing 320 can be positioned close to or in close contact with the drying module 20 to form a flow path for delivering air to the drying module 20.

[0119] The duct module 30 may also include a filter unit 4 disposed in front of the fan housing 320 to filter foreign matter flowing into the circulating fan 330.

[0120] The filter unit 4 can be positioned in front of the fan housing 320, with its length corresponding to the width of the duct body 310, so as to filter foreign substances discharged from a large amount of clothing without difficulty.

[0121] The filter unit 4 can be detachably disposed within the pipe body 310 to easily remove accumulated foreign matter. The pipe body 310 may include an inlet / outlet through which the filter unit 4 is inserted or removed, and the inlet / outlet may be located at the front of the pipe body 310. Therefore, the user can check the condition of the filter unit 4 and clean it without being limited by components such as the drying module 20 or the door 120.

[0122] The drying module 20 can be located at the rear of the cabinet 110 to supply hot air and steam into the cabinet 110.

[0123] The drying module 20 can be configured such that its lower front faces the pipe module 30 and its upper front faces the rear surface of the drying body 10 or the roller 150.

[0124] The drying module 20 may include a housing 210 disposed at the rear of the cabinet 110 and a heat exchange unit 240 disposed inside the housing 210 for dehumidifying and heating the air.

[0125] The housing 210 can be configured such that its height extends from the bottom of the pipe module 30 to the entire rear surface of the roller 150. The width of the housing 210 can correspond to or be less than the width of the cabinet 110. Therefore, the housing 210 can be installed without any problems, provided there is space available for installing the cabinet 110.

[0126] The thickness of the outer casing 210 in the front-to-back direction can be less than the thickness of the cabinet 110 and the pipe module 30 in the front-to-back direction. Therefore, the garment handling equipment of this disclosure can be designed to be compact.

[0127] The drying module 20 may also include a flow path forming unit 220 disposed within the housing 210 to guide air discharged from the duct module 30 back to the drum 150. At least a portion of the heat exchange unit 240 may be disposed inside the flow path forming unit 220.

[0128] The flow path forming unit 220 may extend in the height direction of the cabinet 110 or the housing 210 to receive air discharged from the duct module 30 and guide it toward the rear surface of the roller 150.

[0129] The main body of the pipeline 310 may be equipped with a pressure sensor to detect changes in air pressure.

[0130] Pressure sensors are sufficient as long as they detect the pressure applied to the sensor and output it as another physical quantity (such as electrical quantity), and their function and type are not limited, such as absolute pressure sensors, gauge pressure sensors, or differential pressure sensors.

[0131] The pressure sensor can be configured to determine at least one of the upstream or downstream pressure values ​​by means of a first pressure sensor PS1 disposed on the upstream side of the air inflow filter unit 4 and a second pressure sensor PS2 disposed on the downstream side of the air outflow filter unit 4.

[0132] The filtration performance of filter unit 4 can be detected by either the first pressure sensor PS1 or the second pressure sensor PS2 when it drops to or below a certain level. That is, when foreign matter accumulates excessively on the screen 41 of filter unit 4 to a level that cannot guarantee drying performance and condensation efficiency, filter unit 4 can be detected as being in a blocked state.

[0133] For example, when the pressure value measured by the first pressure sensor PS1 is equal to or greater than a certain level, it can be determined that the filtration performance of the filter unit 4 has deteriorated and air has accumulated upstream of the filter unit 4, and therefore the filter unit 4 is blocked.

[0134] Alternatively, when the pressure value measured by the second pressure sensor PS2 is equal to or greater than a certain level, it can be determined that the filtration performance of the filter unit 4 has deteriorated and air has not moved to the rear of the filter unit 4, which causes the filter unit 4 to become clogged.

[0135] Preferably, a pressure sensor can be provided to detect the pressure at the front and rear of the filter unit 4.

[0136] For example, multiple pressure sensors can be provided and installed at the front and rear of the filter unit 4. Therefore, the pressure is measured by the first pressure sensor PS1 and the second pressure sensor PS2 respectively, and when the difference between the measured pressures exceeds a preset threshold, it can be determined that the filter unit 4 is blocked.

[0137] Alternatively, the pressure sensor can be configured as a differential pressure sensor, and when the difference between the pressures measured by the first pressure sensor PS1 and the second pressure sensor PS2 exceeds a preset threshold, the flow before and after the filter unit 4 is not smooth, and therefore the filter unit 4 can be determined to be blocked.

[0138] Multiple filter units 4 can be provided, and pressure sensors can be provided to determine the blockage of each filter unit 4, in order to jointly determine the blockage of multiple filter units 4 or to determine the blockage of some filter units 4.

[0139] For example, the blockage of each of the multiple filter units 4 can be determined by measuring the difference between the upstream and downstream pressures of each filter unit 4.

[0140] For example, the blockage of the entire plurality of filter units 4 can be determined by measuring the difference between the upstream pressure of the filter unit 4 that first receives air from the drum 150 and the downstream pressure of the filter unit 4 that last receives air from the drum 150.

[0141] For example, a blockage can be determined by specifying the difference between the upstream and downstream pressures of some of the multiple filter units 4 configured to detect blockages.

[0142] In embodiments of this disclosure, air is formed on the top surface of the duct body 310 through its inlet from the roller 150, and the filter unit 4 may include an upstream filter and a downstream filter, the upstream filter filtering the air delivered to the inlet, and the downstream filter being disposed downstream of the upstream filter and delivering the filtered air to the circulating fan 330.

[0143] In the above scenario, the pressure sensor can measure the blockage of the upstream and downstream filters by measuring the difference between the upstream and downstream pressures of the upstream and downstream filters, respectively.

[0144] The upstream filter is configured to shield the inlet and filter the air supplied to the inlet, while the downstream filter can be configured to traverse the air flowing through the duct body in the front-to-back direction. In this configuration, a pressure sensor can detect blockage of filter unit 4 by sensing the pressure at at least one point before or after the downstream filter.

[0145] In the above scenario, when the pressure change measured by the first pressure sensor PS1 upstream of the downstream filter is equal to or less than a threshold range, it can be determined that airflow is stagnant downstream of the upstream filter and upstream of the downstream filter, thus both the upstream and downstream filters are clogged. For example, when the difference between the pressure value measured by the first pressure sensor PS1 located upstream of the downstream filter and the pressure value measured by the second pressure sensor PS2 located downstream of the downstream filter exceeds a threshold, clogging of the downstream filter can be detected.

[0146] In the above scenario, the pressure sensor can be configured as a differential pressure sensor to detect the difference between the pressure value measured by a first pressure sensor PS1 located upstream of the downstream filter and the pressure value measured by a second pressure sensor PS2 located downstream of the downstream filter. In this case, downstream filter blockage can be detected when the pressure difference between the first pressure sensor PS1 and the second pressure sensor PS2 is equal to or greater than a threshold. When the pressure difference between the first pressure sensor PS1 and the second pressure sensor PS2 is equal to or greater than the threshold and the rate of change of this difference deviates from a specific level, it can be determined that both the upstream and downstream filters are blocked.

[0147] The upstream filter can be exposed on the top surface of the pipe body to allow easy access. Therefore, users can periodically check the condition of the upstream filter to remove accumulated foreign matter, thereby preventing or resolving blockages.

[0148] Since the downstream filter is located inside the main pipe body, it is difficult to visually inspect for blockages. Therefore, the reliability of the filtration performance of filter unit 4 can be easily improved by detecting blockages in the downstream filter by sensing the pressure at the front and rear of the downstream filter.

[0149] The circulating fan 330 can be configured to be spaced at a predetermined distance from the bottom surface of the duct body 310. This minimizes the occurrence of eddies and other phenomena caused by the collision of air discharged downward from the inlet of the duct body 310 with the bottom surface of the duct body 310. Therefore, a pressure sensor can be provided to sense the pressure at a predetermined distance or greater from the bottom surface of the duct body 310, thereby improving the reliability of the sensing.

[0150] The circulating fan 330 can be positioned closer to the left or right side of the duct body 310 or fan housing 320. Therefore, compared to when the circulating fan 330 is positioned at the center of the duct body 310 or fan housing 320, the area of ​​vortices or dead zones where air does not flow can be reduced. In this case, a pressure sensor can be installed to detect the pressure on the left or right side of the duct body 310 closer to the circulating fan 330, thereby improving the reliability of the detection.

[0151] A pressure sensor can be provided to sense the pressure at the vertically extending portion of the inlet located on the top surface of the pipe body 310. Therefore, error factors caused by interference from the inner wall or other components of the pipe body 310 can be minimized.

[0152] The duct body 310 may include an outlet through which air is delivered to a circulating fan located at the rear. A pressure sensor may be provided to sense the pressure at the portion of the outlet extending in the longitudinal direction. Therefore, error factors caused by interference from the inner wall or other components of the duct body 310 can be minimized.

[0153] When the difference between the pressure values ​​measured by the first pressure sensor PS1 and the second pressure sensor PS2 exceeds a first threshold, the pressure sensors can provide a notification to the user requesting filter cleaning. The first threshold can be a range within which foreign matter accumulates to a certain extent in the filter unit 4, and the filtration performance decreases, but drying performance, etc., can still be guaranteed.

[0154] When the pressure difference detected by the pressure sensor between the first pressure sensor PS1 and the second pressure sensor PS2 exceeds a first threshold and reaches a second threshold, the drying function can be stopped. The second threshold may be a range where the drying performance and condensation efficiency are excessively reduced, causing the energy efficiency to drop to or below a certain level, or a range where components are damaged due to idling.

[0155] In addition to the main pipe 310, the pressure sensor can also detect the pressure of the drying module 20 or the drying main body 10.

[0156] In embodiments of this disclosure, pressure sensors can be provided to detect the pressure difference between the upstream of the evaporator 241 and the downstream of the condenser 242 by a third pressure sensor PS3 measuring the pressure on the upstream side of the evaporator 241 and a fourth pressure sensor PS4 measuring the pressure on the downstream side of the condenser 242. Therefore, blockage of the heat exchange unit 240 or the filter unit 4 can be detected. Since the pressure value measured by the third pressure sensor PS3 can be replaced by the pressure value downstream of the filter unit 4, it can also be replaced by the pressure value measured by the second pressure sensor PS2.

[0157] When the pressure difference between the third pressure sensor PS3 and the fourth pressure sensor PS4 exceeds a preset value, it can be determined that the amount of air discharged downstream of the condenser 242 is relatively small compared to the amount of air flowing upstream of the evaporator 241, and therefore the heat exchange unit 240, which includes the evaporator 241 and the condenser 242, can be detected to be blocked.

[0158] When the difference between the pressures measured by the third pressure sensor PS3 and the fourth pressure sensor PS4 is less than a preset value, it can be determined that the amount of air flowing upstream of the evaporator 241 itself has been reduced, and therefore the blockage of the filter unit 4 can be detected.

[0159] However, when the pressure sensors only measure the pressure difference between the third pressure sensor PS3 and the fourth pressure sensor PS4, the pressure difference between the third pressure sensor PS3 and the fourth pressure sensor PS4 when both the filter unit 4 and the heat exchange unit 240 are blocked can be similar to the pressure difference when neither the filter unit 4 nor the heat exchange unit 240 is blocked. Therefore, by detecting the blockage of the filter unit 4 using the first pressure sensor PS1 and the second pressure sensor PS2 respectively, it is possible to clearly determine whether the blocked component is the filter unit 4 or the heat exchange unit 240.

[0160] Figure 4 An embodiment of the front configuration of the garment handling apparatus of this disclosure is shown.

[0161] The cabinet 110 forming the exterior of the drying body 10 may include a front panel 111 disposed in front of the roller 150 and side panels 113 extending rearward from both sides of the front panel 111.

[0162] When the duct module 30 is installed inside the cabinet 110, the drying body 10 may also include a cover panel 112, which is configured to shield the front of the duct body 310.

[0163] The cover panel 112 can be arranged parallel to the front panel 111 and has a width corresponding to the width of the front panel 111.

[0164] The height of the cover panel 112 may be less than the height of the front panel 111 and less than the width of the cover panel 112.

[0165] The front panel 111 can be set to a height greater than its width.

[0166] The drying unit 10 may also include a control panel 190 on the upper part of the front panel 111 to receive commands for controlling the garment processing equipment of the present disclosure or to display the status of the garment processing equipment of the present disclosure.

[0167] The drying unit 10 may also include a payment device disposed on one side of the control panel 190 for receiving payments. The payment device may be configured to be any payment device capable of receiving coins or processing payments by communicating with cards, smartphones, etc.

[0168] The front panel 111 may be provided with an opening 1111 that allows the roller 150 to communicate with the outside. The drying body 10 may also include a door 120 for opening and closing the opening 1111. The door 120 may be rotatably coupled to the front panel 111, or a support structure within the front panel 111 may be rotatably coupled to a hinge connector 130 to open and close the opening 1111.

[0169] Figure 5 An embodiment of the door structure of the garment handling apparatus of this disclosure is shown.

[0170] Reference Figure 5 (a) Door 120 may include: an outer frame 121 configured to be larger than the area of ​​opening 1111 and exposed to the outside; an inner frame 122 coupled to the outer frame 121 to open and close opening 1111; and a hinge portion 125 disposed between the inner frame and the outer frame to allow door 120 to rotate relative to cabinet 110.

[0171] The inner frame 122 may include a sealing portion 124 that is in close contact with the inner peripheral surface of the opening 1111 to prevent hot air from leaking from the opening 1111. The sealing portion 124 may be configured in a shape corresponding to the opening 1111.

[0172] The inner frame 122 and the outer frame 121 may be provided with through holes through their centers to visually expose the interior of the opening 1111, and the door 120 may also include glass 123 connecting the inner frame 122 and the outer frame 121 to shield the through holes and allow light to pass through.

[0173] The inner frame 122 may have protrusions on its inner circumferential surface such that at least a portion of the protrusions is inserted into the inner circumferential surface of the opening 1111, and the sealing portion 124 may be made of an elastic material connected to surround the outer periphery of the protrusions.

[0174] The inner frame 122 may also be provided with a fixing part 126, which is configured to be detachably connected to a fastener provided on the front panel 111, etc.

[0175] The door 120 may also include a handle 127, which is formed by recessing the outer surface of at least one of the inner frame 122 or the outer frame 121 inward, such that the handle 127 can be gripped by a user's body.

[0176] For the fixing part 126 and the fastening part, a configuration such as conventional hooks and hook fasteners can be applied.

[0177] However, in the garment processing apparatus of this disclosure, the configuration of a locking device, such as locking the door 120 to the front panel 111 to prevent the door 120 from opening, can be omitted. Therefore, by reducing the thickness of the front panel 111 and the door 120 and ensuring a greater length of the roller 150, the drying capacity can be further increased.

[0178] Reference Figure 5 (b) The outer frame 121 may include an outer body 1211 forming its exterior and having a through hole at its center to expose the glass 123, a connecting protrusion 1213 disposed on the inner surface of the outer body 1211 and connected to the inner frame 122, and a grounding protrusion 1212 configured to penetrate into the inner frame 122 so as to be contactable with the front panel 111.

[0179] The elastic material can be attached to the grounding protrusion 1212 so that the door 120 can be prevented from being damaged even if the door 120 collides with the front panel 111.

[0180] Multiple grounding protrusions 1212 and multiple connection protrusions 1213 may be provided.

[0181] Figure 6 An embodiment of the front structure of the garment handling apparatus of this disclosure is shown.

[0182] The front panel 111 may be provided with an opening 1111 formed therethrough, and the opening 1111 may be configured to correspond to the shape of the inner surface of the door 120.

[0183] The front panel 111 may also include a hinge connector 130, and the hinge portion 125 may be connected to the hinge connector 130 on at least one side of the opening 1111.

[0184] Multiple hinge connectors 130 can be provided and arranged on one side of the opening 1111 to be spaced apart in the vertical direction.

[0185] Furthermore, hinge connectors 130 can be provided on both sides of the opening 1111. Depending on the need, the door 120 can be connected to the hinge connector 130 provided on the left side of the opening 1111, or to the hinge connector 130 provided on the right side of the opening 1111. Therefore, in the garment handling device of this disclosure, the rotation direction of the door 120 in opening and closing the opening 1111 can be selectively determined according to the installation position of the cabinet 110.

[0186] The cover panel 112 can be located below the front panel 111 so that it can be removed from the front of the pipe body 310.

[0187] The lower part of the cover panel 112 can be rotatably connected to the lower part of the pipe body 310 or the bottom panel of the cabinet 110, and the upper part of the cover panel 112 can be detachably connected to the upper part of the pipe body 310 or the lower part of the front panel 111. As a result, the cover panel 112 can be prevented from being lost even when the pipe body 310 is opened.

[0188] The duct body 310 can have a width corresponding to the width of the cabinet 110, allowing for sufficient movement of large flow rates. Furthermore, the front opening of the duct body 310 can have a width corresponding to the width of the duct body 310, and the filter unit 4 can be detachably disposed within the duct body 310. That is, the filter unit 4 can be exposed to the outside when the cover panel 112 is opened. Therefore, when the cover panel 112 is opened, the filter unit 4 can be easily pulled out through the front opening.

[0189] The filter unit 4 can be configured to allow air to pass through it and can be plate-shaped.

[0190] The filter unit 4 can be configured to be inclined relative to the height direction of the duct body 310. For example, the filter unit 4 can be configured such that the upper end forming the upper part of the filter unit 4 and the lower end forming the lower part of the filter unit 4 are in close contact with the inner surface of the duct body 310, and the upper end can be positioned forward or backward relative to the lower end. As a result, the cross-sectional area of ​​the filter unit 4 through which air passes is much larger than the cross-sectional area of ​​the duct body 310 in the front-back direction, thereby maximizing the filtration performance.

[0191] The filter unit 4 can be housed inside the pipe body 310, with its upper end positioned further forward than its lower end. Therefore, when the cover panel 112 is opened, the user can easily clean any foreign matter accumulated on the filter unit 4, which falls onto the bottom surface of the pipe body 310 due to gravity or vibration caused by the drive of the roller 150. Furthermore, when the pressure sensor detects blockage in the filter unit 4 and the filter unit 4 is pulled out through the front opening by opening the cover panel 112 for cleaning or replacement, the amount of foreign matter accumulated on the rear surface of the filter unit 4 is relatively small, thus increasing the ease and hygiene of removal.

[0192] When the pressure sensor detects a blockage in filter unit 4, the user...

[0193] The filter unit 4 may include a frame and a mesh member attached to the inner circumferential surface of the pipe body 310, the mesh member shielding the internal space of the frame and allowing air to pass through it while filtering foreign substances.

[0194] The filter unit 4 can be detachably disposed inside the pipe body 310 and can be inserted into or removed from the front opening of the pipe body 310.

[0195] Figure 7 An embodiment of the internal configuration of the garment handling apparatus of this disclosure as viewed from the front is shown.

[0196] The cabinet 110 may include a reinforcing frame 115 for securing the side panel 113, the reinforcing frame 115 being disposed at one or more of the front and rear portions of the side panel 113.

[0197] The front panel 111 can be fixedly connected to the reinforcing frame 115.

[0198] A rotatable roller 150 may be installed inside the cabinet 110. The roller 150 may be provided with an inlet 1531 communicating with the opening 1111 at the front.

[0199] The drying unit 10 may also include a housing 140 housed within a cabinet 110 to house the roller 150.

[0200] Typically, in the case of a household dryer, the drum 150 can be configured as a cylindrical shape without through holes on its circumferential surface. Support plates for rotatably supporting the drum can be formed at the front and rear of the drum 150, and pipes for communicating air with pipe modules 30, etc., can be mounted on the support plates.

[0201] However, in the case of commercial dryers, not only are the diameter and length of the drum 150 much larger than those of household dryers, but there is also a high probability that a much larger amount of clothing can be put into the drum 150 compared to household dryers.

[0202] Furthermore, when a large amount of clothing is wetted in the drum 150, the weight inside the drum 150 is much greater than the weight of a household dryer. Therefore, it is difficult to stably support the drum 150 using resin-based support plates commonly used in household dryers.

[0203] Additionally, sufficient flow rate should be ensured to dry the large quantity of clothes contained in the drum 150. However, given that resin-based support plates are commonly used in household dryers, it is not possible to install pipes through which the corresponding fluid can pass. Even if such pipes could be installed, problems would arise if the front and rear lengths of the cabinet 110 became excessively long.

[0204] To improve this, the garment handling apparatus of this disclosure can accommodate the roller 150 through the housing 140 and stably support the roller 150 from the bottom surface.

[0205] The housing 140 may be made of metal to stably support the support member 170 of the support roller 150, and may be provided with a thickness greater than that of the cabinet 110.

[0206] In addition, the housing 140 may have a larger cross-sectional area than the roller 150, and may be configured as a pipe shape capable of moving air, thereby maximizing the flow rate of hot air supplied to the roller 150.

[0207] Furthermore, the housing 140 can be configured to receive air from the drying module 20 via the rear and guide the air from the front to the duct module 30, thereby eliminating the need for the formation of separate ducts at the front of the roller 150 or on the front panel 111.

[0208] Specifically, the housing 140 may include an outlet on its bottom surface that supports at least a portion of the load on the roller 150 for discharging air introduced into the housing 140 to the duct module 30. The width of the outlet can be increased to a maximum of the width of the bottom surface of the housing, and the width of the outlet in the front-rear direction can extend sufficiently in the front-rear direction of the bottom surface of the housing. Therefore, the garment handling apparatus of this disclosure can supply sufficient air to the housing 140 by fixing the area of ​​the outlet.

[0209] Additionally, the roller 150 may have a discharge port on a portion of its circumferential surface, allowing air within the roller 150 to be easily discharged to the outlet even if the length of the roller 150 extends to the front panel 111. Therefore, the garment processing apparatus of this disclosure can ensure sufficient flow rate for drying large quantities of garments, making it suitable as a commercial dryer.

[0210] Specifically, housing 140 may be disposed between cabinet 110 and roller 150 to form a flow path through which air moves.

[0211] The housing 140 may be configured to accommodate the roller 150 and configured in a pipe shape to prevent hot air supplied to the roller 150 from leaking out of the cabinet 110.

[0212] The housing 140 can be configured to open the front and rear of the roller 150 while shielding the roller 150 in the circumferential direction.

[0213] The rear portion of housing 140 can communicate with drying module 20, and the front portion of housing 140 can be configured to contact front panel 111. Therefore, hot air supplied from drying module 20 can be guided to the front portion of roller 150.

[0214] Furthermore, the housing 140 may be configured to communicate with the duct module 30. In order to allow the hot air supplied from the drying module 20 to move sufficiently to the front of the roller 150, the housing 140 and the duct module 30 may be configured to communicate at a position closer to the front panel than the rear panel of the cabinet 110.

[0215] The drying unit 10 may also include a support 170 that rotatably supports the roller 150 within the cabinet 110. Therefore, even when the roller 150 is heavy or contains a large amount of clothing, it can rotate stably within the cabinet 110 without vibration or positional changes equal to or greater than a threshold.

[0216] At least a portion of the support member 170 may be housed in and supported by the housing 140. For this purpose, the housing 140 may be fixedly mounted on the pipe module 30.

[0217] The support member 170 can be respectively disposed on the bottom surface of the housing 140 and the outer peripheral surface of the roller 150, or disposed on the two lower sides of the roller 150.

[0218] The housing 140 may be configured to have a different shape than the roller 150, as long as it can accommodate the roller 150 and guide hot air to the front of the roller 150.

[0219] For example, when the roller 150 has a circular cross-section in the radial direction, the housing 140 may have a polygonal cross-section in the height direction.

[0220] The hinge connector 130 can be connected and secured to the housing 140.

[0221] The hinge connector 130 can be attached to both side surfaces of the housing 140, and by attaching to the inner surface of the housing 140, the hinge connector 130 can be attached without interfering with the connection between the housing 140 and the side panel 113 of the cabinet.

[0222] The housing 140 may be made of a metallic material and is configured to support the support 170 and the hinge connector 130.

[0223] The housing 140 can support the drive unit 160 from the outside of the housing 140.

[0224] Figure 8 An embodiment of the sealing structure of the garment handling apparatus of this disclosure is shown.

[0225] The housing 140 may be configured such that its front is open to facilitate the installation or replacement of the roller 150 within the housing 140.

[0226] The garment processing equipment disclosed herein may include a sealing unit 180 disposed in the drying body 10 to prevent hot air or steam supplied from the drying module 20 from leaking from the cabinet 110.

[0227] Specifically, the sealing unit 180 may include a front seal 181 coupled to the housing 140.

[0228] A front seal 181 may be provided to seal between the front surface of the housing 140 and the inner surface of the front panel 111.

[0229] The front seal 181 can be coupled along the periphery of the front surface of the housing 140. The front seal 181 can be configured as an elastic member that is coupled and secured to the distal end of the front surface of the housing 140.

[0230] The front seal 181 may be configured to contact the inner surface of the front panel 111.

[0231] The front surface of the housing 140 may be configured to have an area larger than the diameter of the roller 150 and the diameter of the opening 1111. Therefore, the front seal 181 may be disposed outside the opening 1111 and the roller 150.

[0232] Furthermore, since housing 140 is a component fixed within cabinet 110, front seal 181 can hold housing 140 in a fixed state when attached to housing 140. Therefore, front seal 181 can achieve higher sealing performance than if it were attached to a moving object such as a roller.

[0233] Since the front seal 181 is disposed along the front periphery of the housing 140, components such as the support 170 and the hinge connector 130 can be disposed inside the front seal 181.

[0234] The pipe module 30 can be located outside the front seal 181.

[0235] The front seal 181 prevents hot air from leaking between the exterior of the housing 140 and the interior of the cabinet 110, while the interior of the housing 140 is in communication with the drying module 20, allowing hot air to move.

[0236] Figure 9 An embodiment of the arrangement of the drive unit of the garment handling apparatus of this disclosure is shown.

[0237] The drive unit 160 of the garment handling apparatus of this disclosure can be mounted on top of and supported by the housing 140. The housing 140 can be made of a metallic material to stably support the drive unit 160.

[0238] The drive unit 160 can be configured as a belt / pulley type to rotate the roller 150. Therefore, when the drive unit 160 is positioned above the roller 150, the belt wound around the outer peripheral surface of the roller 150 can also provide force for supporting the roller 150.

[0239] Therefore, even if a large amount of clothing or heavy clothing is put into the drum 150 in a wet state, the drum 150 can rotate stably within the housing 140.

[0240] Furthermore, even after a period of time, the tension of the belt connecting the drive unit 160 and the roller 150 can be stably maintained by the load on the roller 150.

[0241] Specifically, the drive unit 160 of the garment handling apparatus of this disclosure may include: a drive motor 161 that provides power to rotate the roller 150; a belt 162 that is rotated by the drive motor 161 and contacts the outer peripheral surface of the roller 150; and fixing portions 163 and 164 for fixing the drive motor 161 to the top of the housing 140.

[0242] The fixing parts 163 and 164 may include a front fixing part 163 and a rear fixing part 164. The front fixing part 163 is disposed in front of the drive motor 161 and is mounted on the top surface of the housing 140. The rear fixing part 164 is disposed behind the drive motor 161 and faces the front fixing part 163.

[0243] The front fixing part 163 and the rear fixing part 164 can also be used to fix the two side panels 113 of the cabinet.

[0244] The drive unit 160 may further include a swing section 165, which is connected to the front fixed section 163 and the rear fixed section 164 to support the drive motor 161. The swing section 165 may be configured such that one side is rotatably connected to the front fixed section 163 and the rear fixed section 164 in the height direction, and the other side supports the drive motor 161. Therefore, when the roller 150 vibrates during rotation or its position changes slightly, the swing section 165 can reciprocate accordingly, thereby preventing excessive vibration from being transmitted to the drive motor 161 and sudden changes in belt tension.

[0245] The top surface of housing 140 is spaced downward from the top panel of the cabinet to ensure space for installation of drive unit 160.

[0246] In other words, while the bottom surface and two side surfaces of the housing 140 can be set to a flat plate shape, the top surface of the housing 140 can be set to a polygonal shape, such as a trapezoid.

[0247] For example, depending on the shape of the roller 150, the housing 140 can be configured such that both sides are lower than the central portion, thereby ensuring space for installing the drive unit 160 between the roller 150 and the cabinet 110.

[0248] The housing 140 may include a top surface 143 disposed above the roller 150 to support the drive unit 160.

[0249] The top surface 143 may include an inclined surface 1431 extending from the side panel 113 of the cabinet 110 toward the roller 150 above, thereby increasing their height.

[0250] The inclined surfaces 1431 are configured such that their height decreases as they extend from the center portion of the roller 150 toward the side panel 113 of the cabinet 110, thereby ensuring space for mounting the drive unit 160 at both upper ends of the roller 150.

[0251] Additionally, the top surface 143 may include an extension surface 1432 that extends from the top of the inclined surface 1431 toward the top of the roller 150, thereby maintaining its height.

[0252] The inclined surface 1431 and the extended surface 1432 can be configured as flat plates without curvature. Therefore, even if a portion with varying height is provided on the top surface 143, the occurrence of areas of residual stress concentration can be prevented.

[0253] Because of the extended surface 1432, the inclined surface 1431 is prevented from being overextended or having an excessively high top, and the front fixing part 163 and the rear fixing part 164 can be stably supported in a left-right balance.

[0254] The inclined surfaces 1431 may be configured to extend from both ends of the extended surfaces 1432 toward the side panels 113 such that their height is reduced, and the inclined surfaces 1431 may be formed symmetrically with respect to the extended surfaces 1432.

[0255] The housing 140 may also include a bottom surface 141 that supports the support member 170 and is disposed on the pipe module 30, and two side surfaces 142 that extend upward from both sides of the bottom surface 141 to face the side panel 113 and are fixed to the side panel 113. The top surface 143 may be configured to connect the two side surfaces 142 to each other.

[0256] Figure 10 An embodiment of the rear structure of the garment handling apparatus of this disclosure is shown.

[0257] The drying module 20 may also include a rear support unit 172 on its rear surface to rotatably support the roller 150.

[0258] The rear support unit 172 can form the rotation center of the roller 150 about which it rotates, and can also be used as the rotation axis of the roller 150.

[0259] The rear support unit 172 can be connected and fixed to the rear panel 114 that forms the rear surface of the cabinet 110.

[0260] The rear panel 114 can be connected and fixed to the two side panels 113 of the cabinet 110 and the rear surface of the housing 140.

[0261] The rear support unit 172 may include a rotating shaft 1721 connected to the rear rotation center of the roller 150, and a bracket 1722 for fixing the rotating shaft 1721 to the rear panel 114.

[0262] The sealing unit 180 may also include a rear sealer 182 for sealing between the rear surface of the roller 150 and the rear panel 114.

[0263] The bracket 1722 can be fixed to the inner surface of the rear panel 114 and is made of a metal material that has greater rigidity or greater thickness than the rear panel 114. The rotating shaft 1721 may have one end rotatably connected to the bracket 1722 and the other end connected to the roller 150 so as to rotate integrally with the roller 150.

[0264] The rotating shaft 1721 can be used to rotatably support the roller 150, and the power for directly rotating the roller 150 can be provided by the drive unit 160. As a result, the individual components of the drive unit 160 are not located between the rear of the roller 150 and the rear panel 114, thereby allowing the larger roller 150 to be fixed and further reducing the distance between the drying module 20 and the roller 150.

[0265] The drive unit 160 can be positioned closer to the rear of the roller 150 than to the front of the roller 150. Specifically, the drive unit 160 can be positioned closer to the rear panel 114 than to the front panel 111. This prevents the drive unit 160 from interfering with the discharge holes provided in the roller 150, as will be described later.

[0266] Figure 11 An embodiment of the roller structure of the garment handling apparatus of this disclosure is shown.

[0267] The housing 140 can be configured as an outer shell shape with an opening at the front to accommodate the roller 150.

[0268] The housing 140 may also be configured such that the rear is open. For example, the housing 140 may include a bottom surface 141, two side surfaces 142 and a top surface 143.

[0269] The rear surface of housing 140 can be used as an inlet through which air from drying module 20 is introduced. Furthermore, a through-hole formed through the bottom surface 141 of housing 140 can be configured as an outlet 1411 for discharging air to duct module 30.

[0270] The outlet 1411 can be configured as a slit shape that extends through the bottom surface 141 in the width direction longer than in the front-back direction.

[0271] The roller 150 can be inserted from the front of the housing 140 and connected to the rear support unit 172, which is connected to the rear panel 114.

[0272] The roller 150 may include a roller body 151, which is configured as a cylinder to provide space for accommodating clothing.

[0273] The roller 150 may also include a front body 153 attached to the front of the roller body 151 to maintain the shape of the roller body 151 and prevent clothes from being discharged randomly from the roller body 151.

[0274] The front body 153 can be configured as a ring to form an entrance 1531 in the center through which clothing is placed.

[0275] The roller 150 may include a lifter 156 connected to the inner circumferential surface of the roller body 151 to lift and lower the garment, and may also include a rear surface of the roller connected to the rear of the roller body 151 and fixed to the rear support unit 172.

[0276] The roller 150 may also include a discharge port 154 through which hot air can move through the roller body 151.

[0277] Multiple discharge holes 154 can be arranged along the circumference of the drum body 151. The discharge holes 154 can be positioned further forward than the rear of the drum body 151. Therefore, the hot air introduced into the drum body 151 can move as far as possible to the front of the drum body 151 to dry more clothes.

[0278] The outlet 1411 can be positioned further towards the front of the bottom surface 141 than its rear portion. A discharge hole 154 can be located in the region facing the outlet 1411. The discharge hole 154 can be positioned much longer than the width of the outlet 1411 in the longitudinal direction. However, at least some of the discharge holes 154 can be positioned further towards the front of the roller body 151 than their rear portions, thus overlapping the outlet 1411 in the vertical direction. Therefore, air introduced into the roller body 151 can be discharged as close as possible to the outlet 1411.

[0279] The discharge port 154 and outlet 1411 can serve as flow paths through which air can move. The discharge port 154 can be positioned along a length corresponding to the diameter of the roller 150, and the outlet 1411 can be positioned along a width corresponding to the width of the bottom surface 141. Therefore, the garment handling apparatus of this disclosure can omit the separate duct structure positioned in front of the roller 150 to guide the air discharged from the roller 150 to the duct module 30, and can sufficiently ensure the drying capacity suitable for commercial dryers by extending the length of the roller 150 as much as possible, while preventing an excessive increase in the length of the cabinet 110 in the front-to-back direction.

[0280] Figure 12 An embodiment of the rear drum structure of the garment processing apparatus of this disclosure is shown.

[0281] The roller 150 may include a rear body 152, which is attached to the rear of the roller body 151 to form the rear surface of the roller 150. The rear body 152 may be disc-shaped to be attached to the rear peripheral surface of the roller body 151.

[0282] The rear body 152 prevents clothing from escaping from the rear of the roller 150 and allows the roller 150 to rotate about the rotation axis 1721.

[0283] The rear body 152 can be configured to face the outlet through which hot air is discharged from the drying module 20.

[0284] The roller 150 may include a plurality of inlet holes 155 passing through the rear body 152 to introduce hot air into the roller body 151.

[0285] A connector 157 facing the rotating shaft 1721 and forming the rotation center of the roller can be provided at the center of the rear body 152. An inlet hole 155 can be provided between the inner peripheral surface of the rear body 152 and the outer peripheral surface of the connector 157.

[0286] The rear body 152 may also include a plurality of radial ribs extending from the connector 157 toward the inner peripheral surface of the rear body 152, and an inlet hole 155 may be formed between these radial ribs. The rigidity of the rear body 152 may be further enhanced by the radial ribs.

[0287] An inlet hole 155 may be formed in a region recessed from the inner circumferential surface of the rear body 152 toward the roller body 151. The lifter 156 may be fixed such that its rear end is coupled to the front of the inner circumferential surface of the rear body 152 and its other end is coupled to the rear surface of the front body 153.

[0288] The roller 150 may also include at least one of a bushing portion 158 for enhancing the rigidity of the connector 157 or a shaft connection portion 159 connected to the bushing portion 158 to fix the rotating shaft 1721.

[0289] The bushing 158 may be made of a material thicker than that of the connector 157, or have higher strength than that of the connector 157, to stably support the rotating shaft 1721.

[0290] The shaft connection portion 159 can be connected to the free end of the rotating shaft 1721 and is configured as a disc with a diameter larger than that of the rotating shaft 1721. The shaft connection portion 159 can be connected to the bushing portion 158 over a wider area than the rotating shaft 1721, thereby preventing the rotating shaft 1721 from disassembling or separating from the roller 150 even when an excessive load is applied to the rotating shaft 1721.

[0291] The shaft connection portion 159 may also be made of a material thicker than that of the connector 157, or have higher strength than that of the connector 157. The diameter of the shaft connection portion 159 may be smaller than the diameter of the bushing portion 158.

[0292] Because of the bushing portion 158 and the shaft connection portion 159, the rear body 152 can be made of a relatively thin and lightweight material, thereby reducing the manufacturing cost of the roller 150 and reducing the load on the drive unit 160 by reducing the moment of inertia for rotating the roller 150.

[0293] The rear body 152 can be bent rearward from its inner circumferential surface to ensure that the rear seal 182 can be placed in an area or space.

[0294] The rear seal 182 may be configured to surround the outermost periphery of the inlet port 155 and to be disposed along the inner peripheral surface of the rear body 152. The entire area of ​​the outlet of the drying module 20 may be disposed inside the rear seal 182, and the rear seal 182 may direct all supplied hot air to the inlet port 155.

[0295] Figure 13 An embodiment of the piping module of the garment handling apparatus of this disclosure is shown.

[0296] The duct module 30 may include a duct body 310, a fan container 320 and a circulating fan 330. A filter unit 4 may be installed in the duct body 310. The fan container 320 is located at the rear of the duct body 310 to draw in air using negative pressure. The circulating fan 330 is installed in the fan container 320 to generate negative pressure.

[0297] The duct body 310 can be configured to provide space through which air exhausted from the housing 140 moves. The duct body 310 can be configured as a shell shape, or it can be configured as a combination of multiple frames forming a cuboid and shielded by a plate covering these frames.

[0298] The pipe body 310 can be made of high-strength metal material to support the drying body 10.

[0299] The fan container 320 can be housed in the duct body 310, or the fan container 320 can be located at the rear of the duct body 310 and positioned further back than the filter unit 4.

[0300] The fan housing 320 can form a flow path that receives air from the front and discharges it to the rear. A fan mounting portion 340 for securing the circulating fan 330 to the fan housing 320 may also be included at the front of the fan housing 320. Therefore, even if the front of the fan housing 320 is wider than the diameter of the circulating fan 330, the fan mounting portion 340 can prevent the circulating fan 330 from detaching from the fan housing 320 and protect the circulating fan 330 from external impacts or foreign matter.

[0301] The circulating fan 330 can be positioned closer to the left or right side of the duct body 310 or fan housing 320. This reduces turbulent or dead zones where air does not circulate compared to when the circulating fan 330 is positioned at the center of the duct body 310 or fan housing 320.

[0302] The duct module 30 may also include a partition panel 313 disposed in front of the fan container 320 in the duct body 310 to separate the duct body 310 in the front-back direction.

[0303] A partition panel 313 can be provided to shield the area of ​​the opening of the fan container 320 except for the inlet area, and to fix the fan container 320 inside the duct body 310.

[0304] The fan mounting part 340 can be connected and fixed to the partition panel 313. The fan mounting part 340 can be configured to face the circulating fan 330, and the central area of ​​the fan mounting part 340 facing the circulating fan 330 can be perforated to serve as an inlet through which air is introduced into the fan container 320.

[0305] Figure 14 An embodiment in which a circulating fan is installed in the garment processing device of this disclosure is shown.

[0306] Reference Figure 14 (a) The fan container 320 may include a mounting portion 321 and a connecting portion 322. The mounting portion 321 has a space for mounting the circulating fan 330, and air introduced into the duct body 310 is drawn into the space. The connecting portion 322 extends to or is located at the rear of the mounting portion 321 to form a flow path for delivering the air discharged by the circulating fan 330 to the drying module 20.

[0307] The mounting portion 321 and the connecting portion 322 can be made of a material that can be manufactured by a foaming method. Therefore, even if the mounting portion 321 and the connecting portion 322 are configured with a complex structure to form flow paths therein, they can be manufactured to be thicker than when made of metal or resin-based materials. As a result, even if the circulating fan 330 is large enough to generate a large flow rate, the fan housing 320 can absorb noise, ensure the durability of the mounting portion 321 and the connecting portion 322 against high flow rates, and significantly reduce the overall weight of the fan housing 320.

[0308] Furthermore, materials manufactured using foaming methods typically have very low thermal conductivity. Therefore, even if the fan housing 320 has a large volume and hot air moves inside it, the heat loss rate is significantly reduced compared to materials made of metal or resin-based materials.

[0309] The mounting section 321 may have an open surface formed at the front, through which air is introduced and moved. The mounting section 321 may have a space on one side for accommodating the circulating fan 330, and on the other side a flow path for guiding the air supplied from the circulating fan 330 in the width direction of the duct body 310.

[0310] The partition panel 313 can be connected to the front of the mounting section 321 and is configured to shield the portion of the opening surface of the mounting section 321 other than the protective panel.

[0311] The connecting portion 322 may be disposed at the rear of the other side of the mounting portion 321 and extend to the front of the drying module 20. The connecting portion 322 may have a flow path through which air moves and an outlet through which air is discharged on its rear surface.

[0312] The connecting portion 322 can be provided separately from the mounting portion 321, and can be connected and fixed to the rear of the mounting portion 321 by press fitting or fastening members. Therefore, even if the extension directions of the flow paths formed in the mounting portion 321 and the connecting portion 322 are different from each other, they can be manufactured without difficulty by foaming.

[0313] The circulating fan 330 may include an impeller 331 that generates power to move air, and a fan motor 332 connected to the impeller 331 to rotate the impeller 331.

[0314] Reference Figure 14 (b) The circulating fan 330 may be coupled to and supported by at least one of the mounting portion 321 or the connecting portion 322. In this case, when the mounting portion 321 and the connecting portion 322 are made of a foam-moldable material instead of a metal or resin-based material, the rigidity used to support the circulating fan 330 may be insufficient.

[0315] Therefore, the garment handling device disclosed herein may include a fan fixing part 340, which is connected to the fan container 320 to fix the installation position of the circulating fan 330.

[0316] The fan mounting part 340 can be made of a material with higher strength than foam material.

[0317] For example, the fan mounting part 340 may include a mounting plate 341 arranged in the shape of a metal plate, which may be mounted on the second body and extend upward to be fixed.

[0318] The impeller 331 can be disposed in front of the fixed plate 341 and positioned inside the fan housing 320, and the fan motor 332 can be disposed behind the fixed plate 341 and positioned outside the fan housing 320.

[0319] The mounting plate 341 may also include a through hole through which the fan motor 332 can pass. Therefore, the circulating fan 330 can be connected to the mounting plate 341 by inserting the fan motor through the through hole of the mounting plate 341.

[0320] The fan mounting portion 340 may further include a mounting plate 342 disposed between the fan motor 332 and the impeller 331 and connected to the mounting plate. The mounting plate 342 may be provided to shield the through hole and fix the circulating fan 330 to the mounting plate 341.

[0321] Figure 15 An external embodiment of the drying module 20 is shown.

[0322] Reference Figure 15 (a) The drying module 20 may include a housing 210 disposed at the rear of the drying body 10 and the piping module 30. The housing 210 may be disposed at the rear of the cabinet 110.

[0323] The outer casing 210 can be configured as a rectangular parallelepiped shape and have a height equal to or less than the total height of the cabinet 110.

[0324] Reference Figure 15 (b) The housing 210 may include a flow path forming unit 220 and an auxiliary flow path unit 230. The flow path forming unit 220 forms a flow path for receiving air from the duct module 30 and supplying it to the drying body 10. The auxiliary flow path unit 230 is disposed on one side of the flow path forming unit 220 to form a flow path through which the housing 210 communicates with the external air. The flow path forming unit 220 and the auxiliary flow path unit 230 may be separated from each other so that air does not move between them.

[0325] Multiple heat exchangers for dehumidifying and heating the air can be installed inside the flow path forming unit 220, and electrical components such as compressors for supplying refrigerant to the heat exchangers for heat exchange with the air can be installed in the auxiliary flow path unit 230.

[0326] The flow path forming unit 220 can be disposed inside the housing 210 to communicate with the housing 140 or the drum 150 of the pipe module 30 and the drying body 10, thereby forming a flow path through which air circulates from the drum 150.

[0327] The flow path forming unit 220 can be formed to extend in the height direction inside the housing 210.

[0328] The auxiliary flow path unit 230 can be disposed on one side of the flow path forming unit 220.

[0329] The auxiliary flow path unit 230 can be configured such that its height corresponds to the height of the flow path forming unit 220, but its width is smaller than the width of the flow path forming unit 220. Therefore, sufficient flow velocity through the flow path forming unit 220 can be ensured.

[0330] The auxiliary flow path unit 230 can be separated from the drying body 10 and the piping module 30, and is configured to communicate only with the outside air. Therefore, the auxiliary flow path unit 230 can be prevented from being heated by hot air or exposed to foreign matter discharged from the drum 150. As a result, electrical components can be installed inside the auxiliary flow path unit 230 and operate stably.

[0331] The flow path forming unit 220 can be configured as a pipe shape disposed inside the housing 210, allowing air to flow through it.

[0332] However, in order to simplify the configuration of the drying module 20 and reduce its weight, the flow path forming unit 220 can be automatically formed by the configuration of the housing 210. For example, the flow path forming unit 220 can be automatically formed by the arrangement of the front panel 219, rear panel 212, partition panel 218 and side panel 211 forming the front surface of the housing 210.

[0333] The auxiliary flow path unit 230 can be automatically formed by arranging the front panel 219, auxiliary panel 214, partition panel 218 and side panel 211.

[0334] The auxiliary panel 214 may include a plurality of through holes formed in the height direction to communicate with the outside air.

[0335] See back Figure 15 (a) The housing 210 may include side panels 211 forming both sides and a rear panel 212 connected to the side panels 211 to form the rear portion of the housing 210.

[0336] The rear panel 212 can be configured to form the rear surface of the flow path forming unit 220 and prevent the flow path forming unit 220 from being exposed to the outside. In this case, the housing 210 may also include an auxiliary panel 214 disposed on one side of the rear panel 212 to form the rear surface of the auxiliary flow path unit 230 and prevent the auxiliary flow path unit 230 from being exposed to the outside.

[0337] The auxiliary panel 214 and the rear panel 212 can form the rear surface of the housing.

[0338] The housing 210 may also include a removable panel 213 detachably disposed on the rear panel 212 to expose the internal heat exchanger to the outside. Thus, even without separating the entire rear panel 212 from the housing 210, only the removable panel 213 can be separated from the rear panel 212 for cleaning, repair, or replacement of the heat exchanger.

[0339] The rear panel 212 may have a perforated area on the rear surface where the heat exchanger is installed, and the removable panel 213 may be detachably connected to the perforated area of ​​the rear panel 212.

[0340] Figure 16 One embodiment of the internal configuration of the drying module is shown.

[0341] Figure 16 (a) shows the internal configuration of the housing 210 in the drying module as viewed from the rear. Figure 16 (b) shows the internal configuration of the housing 210 in the drying module as viewed from the front.

[0342] Reference Figure 16 (a) The drying module 20 may include a heat exchange unit 240 disposed within the housing 210 to generate hot air by dehumidifying and heating the air supplied from the duct module 30.

[0343] The heat exchange unit 240 may include an evaporator 241 and a condenser 242. The evaporator 241 is disposed in the flow path forming unit 220 to cool the air supplied from the pipe module 30, and the condenser 242 heats the air that has passed through the evaporator 241.

[0344] The evaporator 241 and the condenser 242 can be disposed inside the flow path forming unit 220 and arranged vertically within the flow path forming unit 220. The condenser 242 can be spaced apart from the evaporator 241 and disposed above the evaporator 241.

[0345] The heat exchange unit 240 may further include a compressor 243 and an expansion valve 244. The compressor 243 receives refrigerant from the evaporator 241, heats the refrigerant, and delivers the refrigerant to the condenser 242. The expansion valve 244 expands the refrigerant that has passed through the condenser 242 to reduce the temperature and pressure of the refrigerant. The compressor 243 and the expansion valve 244 may be located inside the auxiliary flow path unit 230 to be separate from the flow path forming unit 220.

[0346] The heat exchange unit 240 may also include an auxiliary heat exchanger 245 connected to the condenser 242 and the evaporator 241 to exchange heat between the refrigerant and the outside air, and a switching valve 246 for selecting whether the refrigerant delivered from the condenser 242 is supplied to the expansion valve 244 or the auxiliary heat exchanger 245.

[0347] The auxiliary heat exchanger 245 and the switching valve 246 can also be located inside the auxiliary flow path unit 230 to be separate from the flow path forming unit 220.

[0348] The auxiliary heat exchanger 245 and the switching valve 246 can be positioned above the compressor 243, and the compressor 243 can be mounted on the bottom surface of the auxiliary flow path unit 230.

[0349] The auxiliary flow path unit 230 may also include an auxiliary fan 231 that brings outside air into contact with the auxiliary heat exchanger 245.

[0350] An auxiliary fan 231 can be positioned above the auxiliary heat exchanger 245. Therefore, when the auxiliary fan 231 is driven, outside air can cool the compressor 243 while moving towards the auxiliary heat exchanger 245.

[0351] The drying module 20 may also include a control panel 232, which provides commands to execute the drying cycle by controlling at least one of the auxiliary fan 231, compressor 243, expansion valve 244, or switching valve 246. The control panel 232 may be mounted in the auxiliary flow path unit 230 to prevent exposure to hot air passing through the flow path forming unit 220. The control panel 232 may be configured as a plate facing the front or rear of the auxiliary flow path unit 230. Therefore, when the auxiliary fan 231 is driven, the control panel 232 can also be cooled by outside air and prevent obstruction of the movement of outside air supplied to the auxiliary heat exchanger 245 in the auxiliary flow path unit 230.

[0352] The auxiliary flow path unit 230 may further include an auxiliary partition plate 233 that prevents air passing through the auxiliary heat exchanger 245 from approaching the control panel 232. The auxiliary partition plate 233 may be disposed between the auxiliary heat exchanger 245 and the control panel 232 and extend into the area where the auxiliary fan 231 is disposed.

[0353] Reference Figure 16 (b) The front panel 219 forming the front of the flow path forming unit 220 may be provided at the front of the flow path forming unit 220 and is provided to be spaced apart from the front of the auxiliary flow path unit 230.

[0354] Alternatively, the housing 210 may also include an additional panel 219 that forms the front surface of the flow path forming unit 220 by connecting the partition panel 218 and the side panel 211 at the rear of the front panel 219.

[0355] Although the following description is based on an embodiment that includes the additional panel 219, the same description can also be applied to an embodiment that includes only the front panel 219.

[0356] The additional panel 219 may include an inlet 215 located at the lower part of the flow path forming unit 220 and an outlet 216 located above the inlet 215. Air that has passed through the pipe module 30 is introduced through the inlet 215, and air that has passed through the condenser 242 is discharged through the outlet 216.

[0357] The inlet 215 can be located at the position of the fan container 320 facing below the evaporator 241, while the outlet 216 can be located at the position of the rear body 152 of the roller 150 on the rear panel 114 of the cabinet 110 facing the interior of the housing 140.

[0358] Therefore, the air discharged from the outlet of the connection 322 can be introduced through the inlet 215, rise by the power of the circulating fan 330, pass sequentially through the evaporator 241 and the condenser 242 to be dehumidified and heated, and then discharged through the outlet 216 into the housing 140 and the drum 150.

[0359] When the air cools, moisture can condense in the evaporator 241, and the condensate can drip from the evaporator 241 and collect on the bottom surface of the flow path forming unit 220.

[0360] The drying module 20 may include a drainage unit 250 communicating with the bottom surface of the flow path forming unit 220 to drain condensate.

[0361] The drainage unit 250 may include a drainage body 251 disposed on the bottom surface of the flow path forming unit 220 to collect water, and a drainage pipe 254 extending from the lower part of the drainage body 251 to the outside of the housing 210 to discharge water. The drainage unit 250 can prevent water condensed in the flow path forming unit 220 from evaporating again and re-entering the drum 150, and prevent the interior of the flow path forming unit 220 from rotting.

[0362] The drying module 20 may also include a cleaner capable of spraying water onto the evaporator 241 to wash away foreign matter or residual bacteria accumulated on the evaporator 241, and a water supply system 260 for supplying water to the cleaner.

[0363] A cleaner can be provided to spray water from below the evaporator 241 toward the evaporator 241. In addition, the evaporator 241 can be configured to be inclined, which not only increases the heat exchange area to improve drying performance, but also guides the water sprayed from the cleaner to move along the surface of the evaporator 241 to wash away foreign substances.

[0364] The drainage unit 250 can discharge all water sprayed from the cleaner and foreign matter separated from the evaporator 241 to the outside of the drying module 20.

[0365] The water supply system 260 can also use water condensed in the evaporator 241.

[0366] Alternatively, a water supply system 260 may be provided to receive direct water from an external water source and supply it to the cleaner.

[0367] The water supply system 260 may include a water supply valve 261 connected to an external water source and a water supply pipe 262 connected from the water supply valve 261 to the cleaner to supply water to the cleaner.

[0368] A control panel can also be provided to control the water supply valve 261.

[0369] Figure 17 This is a simplified diagram showing the structure of the auxiliary heat exchanger 245 of the garment processing equipment of this disclosure.

[0370] Figure 17 The diagram shows the state where the switching valve 246 is used as an evaporator for the auxiliary heat exchanger 245. However, the switching valve 246 can also change the flow path state to use the auxiliary heat exchanger as a condenser.

[0371] Using the auxiliary heat exchanger 245 as an evaporator corresponds to the state where the refrigerant, having passed through the condenser 242, passes through the switching valve 246 and the expansion valve 244 and is then directed to the auxiliary heat exchanger 245. Using the auxiliary heat exchanger 245 as a condenser corresponds to the state where the refrigerant, having passed through the condenser 242, is directly directed to the auxiliary heat exchanger 245 via the switching valve 246.

[0372] Since the garment processing equipment of this disclosure is designed as a commercial dryer, it is necessary to dry large quantities of garments quickly. Therefore, for the garment processing equipment of this disclosure, it is advisable to further increase the cross-sectional area of ​​the evaporator 241 to rapidly supply hot air from the beginning of the drying cycle, and to further increase the cross-sectional area of ​​the condenser 242 to supply high-temperature hot air during the middle and end of the drying cycle.

[0373] However, if the area of ​​the evaporator 241 and the condenser 242 is excessively increased, the volume of the drying module 20 may also be excessively increased.

[0374] Furthermore, while increasing the area of ​​the evaporator 241 may initially help heat the compressor 243, if the compressor 243 is operating normally, excessive heat may be supplied to the compressor 243, which may cause the compressor 243 to overheat.

[0375] In addition, while increasing the area of ​​the condenser 242 can help to quickly supply enough hot air at the start of the drying cycle, if the compressor 243 is running normally, excessive heat can be supplied to the drum 150, which may damage the clothes and increase the temperature along the entire circulation path, resulting in a decrease in the coefficient of performance.

[0376] To address this issue, the auxiliary heat exchanger 245 and the switching valve 246 can be further provided in the garment processing apparatus of this disclosure, such that the auxiliary heat exchanger 245 can be switched as needed and used as an evaporator 241 or a condenser 242.

[0377] For example, at the start of the drying cycle, control panel 280 can control switching valve 246 to use auxiliary heat exchanger 245 as evaporator 241. Specifically, switching valve 246 can direct refrigerant supplied from condenser 242 to expansion valve 244, and the refrigerant that has passed through expansion valve 244 can then flow through auxiliary heat exchanger 245 and then into evaporator 241.

[0378] In this process, the refrigerant can absorb heat from the outside air in the auxiliary heat exchanger 245 and then flow back to the evaporator 241 to absorb heat from the air flowing through the flow path forming unit 220. As a result, the energy of the refrigerant flowing into the compressor 243 can be further increased, thereby allowing the compressor 243 to operate normally and reducing the time required to increase the pressure of the refrigerant.

[0379] When the compressor 243 is operating normally, such as during or at the end of a drying cycle, the control panel 280 can control the switching valve 246 to use the auxiliary heat exchanger 245 as the condenser 242. Specifically, the switching valve 246 can direct refrigerant supplied from the condenser 242 directly to the auxiliary heat exchanger 245, and the refrigerant that has passed through the auxiliary heat exchanger 245 can flow into the evaporator 241 after passing through the expansion valve 244.

[0380] In this process, the refrigerant can heat the air flowing through the flow path forming unit 220 by dissipating heat from the condenser 242, and then move to the auxiliary heat exchanger 245 to return some of the remaining heat to the outside air. Therefore, the refrigerant, in a state where its enthalpy has been significantly reduced, can be cooled to a sufficient temperature and pressure as it passes through the expansion valve 244 and is then introduced into the evaporator 241. As a result, overheating of the heat exchange unit 240 and a decrease in the coefficient of performance can be prevented by ensuring a large temperature difference between the evaporator 241 and the condenser 242.

[0381] Figure 18 An example of pipe module 30 is shown.

[0382] The duct module 30 may include: a duct body 310 having an inlet 315 for receiving air from the roller 150 and an outlet 316 for discharging air received from the inlet 315; a circulating fan 330 configured to communicate with the outlet 316 to move air in the duct module 30; and a fan container 320 providing space therein for housing the circulating fan 330.

[0383] Inlet 315 and outlet 316 can be provided regardless of their location, such as on the top, bottom or side surface of the duct body 310, and the airflow moving through the duct body 310 can be extended in one direction, causing its direction to change at least once, or recirculated.

[0384] Inlet 315 may be positioned to receive air from roller 150 in a first direction, while outlet 316 may be positioned to discharge air received from inlet 315 in a second direction different from the first direction.

[0385] The main body of the pipe 310 can be configured as a rectangular parallelepiped shape, with the inlet 315 located on the first surface and the outlet 316 located on the second surface that shares a corner with the first surface.

[0386] The pipe body 310 may include an opening 350. The opening 350 can be used as a communication port through which air received from the roller 150 flows into the inlet 315 and is discharged through the outlet 316.

[0387] Providing an opening 350 to allow for the flow cross-section of air moving through the duct body 310 is sufficient, and multiple openings may be provided.

[0388] The air discharged from the roller 150 and delivered to the duct module 30 may contain foreign substances such as lint from clothing. In order to prevent air containing foreign substances from being delivered to the drying module 20 and reducing the coefficient of performance of the heat exchange unit 240 or causing hygienic deterioration, a filter unit 4 (described later) for filtering the air may be provided in the opening 350.

[0389] Multiple filter units 4 can be formed in the pipe body 310 and have the same or different structures.

[0390] Figure 19 This is an exploded view showing the first filter 4a as an embodiment of filter unit 4.

[0391] The first filter 4a can be used not only to filter air in the garment processing device 1 having the above-described structure, but also in any product including a duct that forms a flow path through which air moves.

[0392] The first filter 4a may be configured to include a frame unit F formed along the periphery of the opening 350, a mesh screen 41 having an edge fixed by the frame unit F to filter air, and a shape retainer 44 inserted into the frame unit F to maintain the shape of the frame unit F.

[0393] The frame unit F may include: an inner frame 6 formed along the periphery of the opening 350 and fixed to the pipe module 30; and an outer frame 5 connected to the inner frame 6 and exposed to the outside of the pipe module 30.

[0394] The shape retainer 44 can be configured to extend along the periphery of the opening 350 and be inserted between the inner frame 6 and the outer frame 5.

[0395] The shape retainer 44 may be made of a material having a higher stiffness than at least one of the inner frame 6 or the outer frame 5 to prevent deformation of the frame unit F.

[0396] The mesh screen 41 can provide tension toward the interior of the frame unit F in response to the tension force exerted by the frame unit F pulling its edges. Therefore, due to the tension of the mesh screen 41, a torsional moment may be generated in the frame unit F. The shape retainer 44 can be made of a material with torsional stiffness or higher against the torque generated in the frame unit F, thereby preventing torsion of the frame unit F.

[0397] Figure 20 This is a schematic diagram illustrating the manufacturing process of frame unit F. Figure 21 This is a flowchart illustrating the manufacturing process of frame unit F. The following will refer to... Figure 20 and Figure 21 Describe the manufacturing process of frame unit F.

[0398] The frame unit F can be manufactured by a manufacturing method including an extrusion step S1, a cutting step S2 and a fusion step S3. The extrusion step S1 continuously extrudes a product with a constant cross-section by heating the material forming the frame unit F at a high temperature. The cutting step S2 cuts the material that has undergone the extrusion step S1 to fit the length of each side of the opening 350. The fusion step S3 connects the ends of the material that has undergone the cutting step S2 by heating and thermal fusion to correspond to the shape of the opening 350.

[0399] Therefore, since the frame unit F, which is in the form of a closed curve formed along the periphery of the opening 350, is not manufactured integrally by injection molding or the like, the initial mold manufacturing cost is reduced, and the range of materials to be selected for the frame unit F is expanded.

[0400] Furthermore, since only compressive and shear stresses are used to process it, the degree of freedom of shape is increased when the cross-sections used to fix the shape retainer 44 and / or the mesh screen 41 are formed inside the frame unit F.

[0401] By fusing the ends of each material, a fusion line L1 can be created on the frame unit F. The fusion line L1 may not be clearly distinguishable visually.

[0402] The fusion line L1 can be identified by using a polymerizing agent that is different from the material that forms the framework unit F during the fusion process.

[0403] The deformation of the ends of the material that have undergone the extrusion step S1 and the cutting step S2 due to physical forces such as heat is sufficient to distinguish the fusion line L1 from the other parts in terms of physical or chemical shape, structure, or physical properties. The fusion line L1 is sufficient as long as it can be recognized by a person skilled in the art as a feature caused by fusion.

[0404] The inner frame 6 and the outer frame 5 can be manufactured with different cross sections or materials.

[0405] Figure 20 (a) shows a method for manufacturing the outer frame 5. Figure 20 (b) shows a method for manufacturing the inner frame 6.

[0406] The outer frame 5 can be manufactured by a manufacturing method including an outer frame extrusion step S1a, an outer frame cutting step S2a of cutting the material that has undergone the outer frame extrusion step S1a, and an outer frame fusion step S3a of heating and thermally fusing the ends of the material.

[0407] Through the outer frame fusion step S3a, an outer frame fusion line L11 can be formed on the outer frame 5.

[0408] The connecting magnet 42 that generates magnetic force can be housed inside the inner frame 6, and at least a portion of the pipe module 30 can be configured as a magnet that can be connected to the connecting magnet 42, so that the inner frame 6 can be detachably fixed to the pipe module 30.

[0409] Since the connecting magnet 42 can be accommodated in the inner frame 6, the inner frame 6 can be manufactured as follows.

[0410] The inner frame 6 can be manufactured by a manufacturing method including an inner frame extrusion step S1b, an inner frame cutting step S2b of cutting the material that has undergone the inner frame extrusion step S1b, an insertion step S25 of accommodating the connecting magnet 42 in the cut material, and an inner frame fusion step S3b of heating and thermally fusing the ends of the material accommodating the connecting magnet 42.

[0411] That is, in the case of an attachment object, such as an inner frame 6, since the connecting magnet 42 should be housed inside it, an insertion step S25 in which the connecting magnet 42 is housed can also be included after the cutting step S2.

[0412] To prevent the connecting magnet 42 from separating and to ensure its attachment reliability, preferably, the connecting magnet 42 is inserted into the connecting magnet receiving groove 62 (described later) and is formed separately within the inner frame 6. Therefore, the insertion step S25 can be performed after the cutting step S2 and before the fusion step S3.

[0413] Through the inner frame fusion step S3b, an inner frame fusion line L12 can be formed on the inner frame 6.

[0414] Figure 22 An example of a cross-section (hereinafter, the cross-section) is shown in a direction perpendicular to the extrusion direction of the outer frame 5, and Figure 23 An example of a cross-section (hereinafter referred to as the cross-section) is shown in a direction perpendicular to the compression direction of the inner frame 6. The characteristics of the cross-sections of the outer frame 5 and the inner frame 6 will be described below.

[0415] The protrusions and recesses 51 and 61 can be formed to protrude or recess from the contact surfaces of the inner frame 6 and the outer frame 5 facing each other for connection, and the inner frame 6 and the outer frame 5 can be connected to each other by fitting the protrusions and recesses 51 and 61 together.

[0416] At least one of the inner frame 6 or the outer frame 5 may be provided with shape retainer receiving grooves 54 and 64, in which shape retainer 44 is received.

[0417] The edge of the screen 41 can be fixed to the frame unit F by the pressure generated by the engagement of the protrusions and recesses 51 and 61 and the connection between the shape retainer 44 and the frame unit F.

[0418] The protrusions and recesses may include a first protrusion and recess 61 protruding from the surface of the inner frame 6 facing the outer frame 5 and a second protrusion and recess 51 recessed in the surface of the outer frame 5 facing the inner frame 6 to engage with the first protrusion and recess 61.

[0419] Since the first concave-convex portion 61 is designed to be protruding, the position and shape of the connecting magnet receiving groove 62 can be increased.

[0420] Compared to the outer frame 5, the inner frame 6 can be positioned relatively downstream of the air flowing through the pipe module 30.

[0421] Due to airflow, the screen 41 can apply an external force to the frame unit F in the downstream direction. In this case, when the first protrusion 61 is configured as a protruding shape and the second protrusion 51 is configured as a recessed shape, the force supporting the screen 41 in the upstream direction can be increased by the protrusions 51 and 61. Therefore, the screen 41 can be stably fixed to the frame unit F without excessive elongation.

[0422] The protrusions and recesses 51 and 61 may include a plurality of protrusions extending from the contact surface and a plurality of recesses engaging with the protrusions. The protrusions and recesses may be arranged in a row along a direction intersecting the extrusion (extension) direction of the frame unit F. This can improve the ease of manufacturing the frame unit F.

[0423] Preferably, on each side of the frame unit F, multiple protrusions and multiple recesses are arranged in rows from the inside to the outside of the frame. Therefore, the connecting force through the protrusions and recesses 51 and 61 is most effectively transmitted to the screen 41, allowing the screen 41 to be stably fixed to the frame unit F.

[0424] Shape retainer receiving grooves 54 and 64 can be formed between multiple recesses and multiple protrusions. Therefore, when the shape retainer 44 is received in the frame unit F, the recesses and protrusions 51 and 61 are connected in the internal and external directions of the frame unit F, thereby preventing the shape retainer 44 from separating and stably fixing it.

[0425] The sealing rib 52 may be formed to protrude around the outer peripheral surface of the outer frame 5 and be exposed to the outside of the pipe module 30. When the first filter 4a is fixed to the opening, the sealing rib 52 may prevent air from flowing into the joint between the outer peripheral surface of the frame unit F and the opening 350.

[0426] The sealing rib 52 can protrude from the edge of the frame unit F at an angle greater than the angle formed between the opening 350 in which the first filter 4a is installed and the inner surface of the pipe body 310. Therefore, the sealing rib 52 and the inner surface of the pipe body 310 naturally come into contact and are pressurized, thereby effectively blocking airflow.

[0427] The handle 53 may be configured to protrude from at least a portion of the outer frame 5 to the outside of the pipe module 30, allowing the user to grip the handle 53.

[0428] The user can separate the frame unit F from the opening 350 by pulling the handle 53 exposed to the outside of the pipe module 30 in an outward direction. Usability is improved because the user does not need to insert their fingers into the narrow gap formed between the opening 350 and the outer peripheral surface of the frame unit F to remove the first filter 4a.

[0429] By setting the connecting force generated by the assembly of the protrusions and recesses 51 and 61 to be greater than the attachment force of the connecting magnet 42 to the pipe module 30, not only the outer frame 5 but also the inner frame 6 can be pulled out immediately by pulling the handle 53.

[0430] The protrusion angle and position of the handle 53 can be changed depending on the position of the first filter 4a. The handle 53 can be configured so that a user of average height can grip the handle 53 within the range of arm movement without lifting their heels or bending their waist.

[0431] An anti-slip part 531 can be provided on the handle 53 to improve user usability. The anti-slip part 531 can be configured as a groove or protrusion that matches the shape of a finger or a shape used to prevent friction, and can be formed separately from the frame unit F and then attached to the handle 53.

[0432] Figure 22 (a) shows an example of an outer frame 5 in which a handle 53 and a sealing rib 52 are formed, and Figure 22 (b) shows an example of an outer frame 5 in which the handle 53 and sealing rib 52 are not formed.

[0433] like Figure 23 As shown, a connecting magnet receiving groove 62 for accommodating a connecting magnet can be formed in the inner frame 6. The connecting magnet 42 can be made of an elastic material to facilitate its accommodation in the connecting magnet receiving groove 62.

[0434] Figure 24 The protrusions and recesses 51 and 61 provided in the inner frame 6 and the outer frame 5 are shown.

[0435] In embodiments of this disclosure, the first protrusion 61 is shown as a protrusion projecting from the contact surface in the inner frame 6, and the second protrusion 51 is shown as a recess recessing from the contact surface in the outer frame 5. This is merely one embodiment of the present disclosure, and the protrusion and recess may be interchangeably provided in the outer frame 5 and the inner frame 6.

[0436] For ease of description, in the following text, the protrusion will be referred to as the first concave-convex portion 61, and the concave portion will be referred to as the second concave-convex portion 51.

[0437] The first protrusion 61 may include a first extension 611 extending from the contact surface and a second extension 612 extending from the end of the first extension 611.

[0438] The first extension 611 and the second extension 612 may have different shapes in a cross section perpendicular to the extension direction of the frame unit F.

[0439] In a cross-section perpendicular to the protruding direction of the first protrusion 61, preferably, at least a portion of the second extension 612 does not overlap with the first extension 611 in the protruding direction of the first protrusion 61. Therefore, even if an external force acts in the direction that would separate the first protrusion 61 and the second protrusion 51 while they are connected, they can be prevented from easily separating.

[0440] Figure 24 (a) shows an example 612a of a second extension 612 formed as a circle.

[0441] The second extension 612 can be configured as a circular shape, with a diameter greater than the extension width of the first extension 611.

[0442] Therefore, at least a portion of the extension section of the second extension 612 can be configured to be larger than the extension section of the first extension 611, thereby preventing separation between the outer frame 5 and the inner frame 6.

[0443] Figure 24 (b) shows an example in which one side of the second extension 612 is configured as a hook 612b from the end of the first extension 611.

[0444] Reference Figure 25 When the second extension 612 is configured as a hook 612b, the direction in which the second extension 612 bends from the first extension 611 will be described below.

[0445] Figure 25 The cross-section is shown along line D-D', which intersects the interior and exterior of a frame element F with a closed curve shape. For ease of explanation, the direction toward the outside of the frame element F is referred to as the outward direction R1, and the direction toward the inside of the frame element F is referred to as the inward direction R2.

[0446] exist Figure 25 In (a), of the pair of second extensions 612, one second extension 612 is shown to be bent from the first extension 611 in the outward direction R1, while the other second extension 612 is shown to be bent from the first extension 611 in the inward direction R2.

[0447] like Figure 25 As shown in (a), when the second extension 612 bends from the end of the first extension 611 in a direction facing each other, the edge of the screen 41 can be prevented from separating from the frame unit F.

[0448] For example, when the screen 41 is pulled in the outward direction R1 or the inward direction R2 (the direction in which the screen 41 separates from the frame unit F), the bent second extension 612 can deform towards the center of the inner side of the frame unit F by the elastic force of its material itself. Therefore, the force at the end of the second extension 612 that binds the screen 41 to the center of the frame unit F can be increased, thereby improving the fixing reliability of the screen 41.

[0449] exist Figure 25 In (b), a pair of second extensions 612 are shown bent from the first extension 611 in an outward direction R1. When the second extensions 612 are as Figure 25 The arrangement shown in (b) may be advantageous in resisting the tension of the screen 41.

[0450] For example, when the air inside the filter drum 150 of the screen 41 receives force in its central portion and thus transmits tension in the inward direction of the frame unit F, the second extension 612 is arranged in the outward direction R1, thereby maximizing the force against warping deformation, thus allowing the frame unit F to stably support the screen 41.

[0451] In this case, when the first protrusion 61 is formed as a protrusion on the inner frame 6, the second extension 612 can support the screen 41 to receive the force in the downstream direction toward the upstream side, which can improve the reliability of the connection between the screen 41 and the frame unit F.

[0452] Figure 26 An example of frame unit F is shown. Figure 26 (a) shows the inner frame 6 as viewed from the front of opening 350. Figure 26 (b) shows the outer frame 5 connected to the inner frame 6.

[0453] Figure 26 The frame unit F shown is provided as an example in a rectangular shape, where all interior angles are right angles and one pair of opposite sides is longer than the other pair of opposite sides.

[0454] For ease of description, a pair of relatively longer opposite sides will be referred to as long sides D1, while the remaining pair of relatively shorter opposite sides will be referred to as short sides D2 in the following text.

[0455] The inner frame 6 has a connecting magnet receiving groove 62 formed in the extrusion step S1, and the connecting magnet 42 can be accommodated in each side that has undergone the cutting step S2 to match the length of each side of the opening 350.

[0456] When the ends of the sides accommodating the connecting magnet are fused together, a specific fusion separation gap G can be formed between the connecting magnet 42 and each fused end to prevent the fusion from being hindered by the connecting magnet 42 or to prevent a reduction in the connection force due to the fusion. Therefore, the fusion separation gap G can be formed such that at least a portion of it overlaps with the fusion line L1.

[0457] The fusion separation gap G can be formed at each corner of the inner frame 6, so that the connecting magnet 42 is inserted into the inner frame 6, thus being discontinuous at the corner.

[0458] like Figure 26 As shown in (b), when the screen 41 and the outer frame 5 are connected to the inner frame 6, the screen 41 can be pressurized in the airflow direction (the direction in front of the penetration opening 350), while its edges are pulled by the frame unit F. Therefore, the frame unit F can receive tension in the inward direction R2.

[0459] When the frame unit F receives tension in the inward direction R2, the central portion of each side, which has stiffness enhanced by the connecting magnet 42, can resist this tension. However, the portion with the fusion separation gap G may deform due to the tension of the screen 41, in which the stiffness is weakened by the connecting magnet receiving groove 62, and the connecting magnet 42 is not accommodated. Therefore, the frame unit F can deform, causing it to bend or fold based on the corners forming the fusion separation gap G.

[0460] Furthermore, when twisting occurs on each side due to the tension of the screen 41, the twist angle F1 occurring on the long side D1 can be greater than the twist angle F2 occurring on the short side D2, because the twist angle is proportional to the length of the side.

[0461] Therefore, when the long side D1 is twisted, the frame element F can deform as if it were folded based on a pair of opposite corners.

[0462] Figure 27 An example of shape retainer 44 is shown. Figure 27 (a) shows the shape retainer 44 as viewed from the front of the opening 350, and Figure 27(b) shows a cross section of the shape retainer 44 forming a closed curve, taken along the line F-F' that intersects from the inside to the outside of the shape retainer 44.

[0463] The shape retainer 44 may be provided in the form of a round rod extending along the circumference of the opening 350.

[0464] The shape retainer 44 may be made of a metallic material and includes at least one weld line L2 formed by welding its ends to form a closed curve.

[0465] Weld lines L2 may not be clearly distinguishable by appearance. However, they can be identified by the form of physically uneven protrusions on the surface due to welding, markings from unevenly ground surfaces, discolored markings from heat treatment, or surface treatment markings.

[0466] Even if the weld line L2 is not visually noticeable, it can be distinguished by having a slightly uneven or different density or thickness compared to other parts. The weld line L2 is sufficient as long as a person skilled in the art can recognize that it is a feature produced by welding.

[0467] The weld joint of the weld line L2 on the shape retainer 44 can have lower strength than other parts. Therefore, the weld line L1 can be provided at a point that does not overlap with the fusion separation gap G or the fusion line L1, thereby avoiding deformation concentrated at the fusion separation gap G or the fusion line L1.

[0468] When the frame element F is set to a rectangular shape where all interior angles are right angles and one pair of opposite sides are longer than the other pair of opposite sides, the welding line L2 can be formed in the part of the frame element F that is inserted into the short side D2.

[0469] As described above, when twisting occurs on each side due to the tension of the mesh screen 41, the twist angle is proportional to the length of the side. Since the twist angle F1 appearing on the long side D1 is greater than the twist angle F2 appearing on the short side D2, forming a weld line L2 on the short side D2 can prevent strong loads from acting on the weld line L2 with relatively low intensity, thereby improving the reliability of the strength of the shape retainer 44.

[0470] When the opening 350 is set to a polygonal shape, the corner 441 of the shape retainer 44 can be formed as a bend with a radius R. Therefore, when an external force is applied to the shape retainer 44, breakage due to load concentration on the corner 441 can be prevented.

[0471] The shape retainer 44 can be made of a material having at least the stiffness to withstand the tension of the mesh 41 and the torsional stiffness to resist the torque of the frame unit F generated by the tension applied to the frame unit F by the mesh 41, or higher. Therefore, as described above, it is possible to prevent the long side D1 from twisting and to prevent the frame unit F from deforming as if based on a pair of opposing corner folds.

[0472] Figure 28 The components of the frame unit F, the mesh screen 41, and the shape retainer 44 are shown.

[0473] The shape retainer 44 can be inserted into the center of the frame unit F. That is, the length t1 from the contact surface P of the outer frame 5 to the end of the outer frame 5 and the length t2 from the contact surface P of the inner frame 6 to the end of the inner frame 6 can be equal, and the recess lengths of the shape retainer receiving grooves 54 and 64 from the contact surface P can be equal.

[0474] That is, the distance from the shape retainer 44 to the outside of the outer frame 5 and the distance from the shape retainer 44 to the outside of the inner frame 6 can be set to be the same.

[0475] When the frame unit F is made of the same material and the shape retainer 44 extends across the center of each side of the frame unit F, deformation of the frame unit F can be prevented most effectively, and production and design can be simplified.

[0476] The first filter 4a can be formed by assembly step S4, in which screen 41 is stacked on outer frame 5, shape retainer 44 is inserted into screen 41, and protrusions (first concave-convex portion 61) of inner frame 6 are fitted into recesses (second concave-convex portion 51) of outer frame 5, so that inner frame 6 and outer frame 5 are connected.

[0477] When the first protrusion 61 is formed as a protrusion on the inner frame 6 and the second protrusion 51 is formed as a recess on the outer frame 5, the screen can be inserted and fixed between the outer frame 5 and the shape retainer 44. When an external force is applied to the screen 41 in the downstream direction by the airflow, the protrusions 51 and 61 of the frame unit F and the shape retainer 44 can support the screen 41 in the upstream direction, and thus the screen 41 can be stably fixed to the frame unit F without excessive elongation.

[0478] Figure 29 The first filter 4a is shown as viewed from the front of the opening 350.

[0479] The pipe module 30 may be equipped with a magnetic sensor 314, which will be described later, to detect the strength of the magnetic field, etc. Therefore, the frame unit F may accommodate a magnetic field source 43 from which the magnetic sensor 314 detects magnetic signals to sense whether the filter unit 4 is attached to the pipe module 30.

[0480] The handle 53 and the magnetic field source 43 may be formed on or housed in at least a portion of the frame unit F. Figure 29 An example is shown in which the magnetic field source 43 is housed in the upper center of the frame unit F and the handle 53 is formed on the left side of the frame unit F.

[0481] based on Figure 29 , Figures 30 to 32 The cross section intersecting from the inside to the outside of frame element F is shown. Figure 30 The cross-section taken along line A-A' is shown, in which the handle 53 and the magnetic field source 43 are not formed. Figure 31 A cross-section taken along line B-B' is shown, which contains a magnetic field source 43, and Figure 32 A cross-section taken along line C-C' is shown, in which the handle 53 is accommodated. This is merely an embodiment of the present disclosure, and the handle 53 and the magnetic field source 43 may not be formed, or may be formed to overlap.

[0482] Figure 30 The diagram shows an inner frame 6 in which a connecting magnet 42 is housed and a first protrusion 61 is formed protruding from the contact surface P, a shape retainer 44 stacked on the inner frame 6, a mesh screen 41 stacked on the shape retainer 44, and an outer frame 5 in which a second protrusion 51 is formed recessed from the contact surface P and stacked on the mesh screen 41.

[0483] The frame unit F can be connected by the engagement of the first protrusion 61 and the second protrusion 51, and the screen 41 can be fixed by pressure from the shape retainer 44 and the frame unit F.

[0484] The above is one embodiment. The protruding and recessed directions of the first and second protruding parts 61 and 51 can be switched at their respective contact surfaces P, and the screen 41 can be fixed by pressure between the shape retainer 44 and the inner frame 6.

[0485] Since the mesh screen 41 is tensioned and pressurized by the frame unit F and the shape retainer 44, the first filter 4a can be aesthetically conveyed to the user as having the rigidity and strength suitable for commercial use in terms of appearance.

[0486] Figure 31 A magnetic field source 43 fixed to the inner frame 6 is shown. The inner frame 6 may be provided with a magnetic field source receiving slot 63, in which the magnetic field source 43 can be housed.

[0487] The magnetic field source receiving groove 63 can replace a portion of the first concave-convex portion 61 and protrude from the contact surface P to be fitted into the second concave-convex portion 51 of the outer frame 5.

[0488] Therefore, even if the inner frame 6 is compressed into a whole, the magnetic field source 43 can be accommodated by, for example, a process in which only a portion of the first protrusion 61 is cut during post-processing, thereby reducing production costs.

[0489] Figure 32 The handle 53 and sealing rib 52 formed on the outer frame 5 are shown.

[0490] As described above, the protrusion angle and formation position of the handle 53 can be changed according to the position where the first filter 4a is set.

[0491] The handle 53 can be configured so that users of average height can grip the handle 53 within the range of arm movement without lifting their heels or bending their waist.

[0492] For example, when the lower part of the first filter 4a is close to the ground, the handle can be located on the upper part or side of the first filter 4a for user accessibility, and the protruding angle can be formed to be offset towards the inside of the opening 350 to prevent interference with the pipe module 30 in which the first filter 4a is housed.

[0493] For ease of production, the handle 53 can be formed separately from the outer frame 5 and then attached to the outer frame 5.

[0494] As described above, the angle at which the sealing rib 52 protrudes from the outer edge of the outer frame 5 can be greater than the angle formed by the opening 350 in which the first filter 4a is installed and the inner surface of the pipe body 310. Therefore, the sealing rib 52 and the inner surface of the pipe body 310 naturally come into contact and are pressurized, thereby effectively blocking airflow.

[0495] The sealing rib 52 may be formed only on a portion of the outer frame 5, and for ease of production, the sealing rib 52 may be formed separately from the outer frame 5 and then attached to the outer frame 5.

[0496] Figure 33 A second filter 4b is shown as another embodiment of filter unit 4. Figure 34 This is an exploded view of the second filter 4b. The second filter 4b will be referred to below. Figure 33 and Figure 34 Describe it.

[0497] The second filter 4b can be specifically used to filter air in any product, which includes a duct forming a flow path through which air moves, and a garment processing device 1 having the above-described structure.

[0498] The second filter 4b may include: a filter body 8 having an opening formed on its inner circumferential surface; a mesh screen 41 for shielding the opening; and a panel unit 9 exposed to the outside of the pipe body 310 to receive external forces from the user.

[0499] The second filter 4b can be configured to slide into and out of the main body of the pipe 310.

[0500] When the second filter 4b is inserted through the front of the pipe body 310, the filter body 8 may be provided with a flange 85 extending in the front-rear direction, and the pipe body 310 may include a support member 72 (described later) supporting the flange 85 to help insert and remove the filter body 8, so that the filter body 8 can be easily inserted into the pipe body 310.

[0501] The support member 72 can be recessed to a predetermined depth so that the flange 85 can be inserted a certain distance and held in a fixed state, thereby preventing the filter body 8 from separating from the pipe body 310 arbitrarily or by vibration.

[0502] The flange portion 85 may include a flat portion 852 extending parallel to the insertion direction of the filter body 8, and an inclined portion 851 extending forward from the front end of the flat portion. The inclined portion 851 may be configured to interfere more with the support member 72 than the flat portion 852. Therefore, it is possible to prevent the filter body 8 from being pulled out contrary to the user's intention. In addition, when the user inserts the filter body 8 into the pipe body 310, the inclined portion 851 may interfere with the support member 72 and transmit an increased reaction force, thereby making it easier for the user to identify the point of full insertion.

[0503] Clearly, the filter body 8 may be provided with a rotating member (not shown), which includes a rotatable wheel and an axle connected to the center of the wheel at the location forming the flange 85. Similar to the case where the flange 85 is provided, the support member 72 may be formed to be recessed to a predetermined depth, such that one side of the rotating member is inserted and moved. Therefore, when the wheel rotates within the support member 72, the filter body 8 can be pulled out of the pipe body 310 and pushed into the pipe body 310.

[0504] The filter body 8 may include a limiting rib 86 on the upper part of the flange 85, the upward movement of which is restricted by the support 72, thereby preventing the filter body 8 from separating upward due to the operation of the dryer 1.

[0505] The filter body 8 may be provided with fixing ribs 84, which extend from the inner peripheral surface of the filter body 8 in a grid pattern to pass through the opening. The fixing ribs 84 may include a first fixing rib 84a extending along a first direction and a second fixing rib 84b disposed perpendicular to the first fixing rib 84a.

[0506] The screen 41 can be fixed such that its edges contact the inner circumferential surface of the filter body 8 and the fixing ribs 84. Therefore, deformation of the screen 41 due to airflow direction can be prevented, thereby improving the reliability of filtration performance and enhancing user satisfaction by conveying structural robustness in form.

[0507] Multiple filter bodies 8 can be provided. Multiple filter bodies 8 can be arranged along the width direction to form filter bodies 8.

[0508] Figure 33 and Figure 34 An example is shown where the filter body 8 includes a first filter body 8a and a second filter body 8b.

[0509] Each of the first filter body 8a and the second filter body 8b may include a mating surface 87 as a surface that contacts the other, a side surface 83 provided with a flange 85, a front surface 81 that contacts the panel unit 9, and a rear surface 82 that connects the rear end of the mating surface 87 and the rear end of the side surface 83 to form the rear portion of the filter body 8.

[0510] The second filter 4b can be inserted through the front of the pipe body 310, and the rear surface 82 can contact the pipe body 310.

[0511] The insertion surface 821 can be configured to be tilted relative to the height direction on the rear surface 82.

[0512] As will be described later, the pipe body 310 may be provided with a mounting surface 73 configured to contact the insertion surface 821 when the second filter 4b is fully inserted into the pipe body 310, and the mounting surface 73 may be configured to mate with the insertion surface 821.

[0513] Because the mounting surface 73 is inclined, the contact area between the filter body 8 and the pipe body 310 can be increased, thereby enhancing the sealing effect at the joint between the filter body 8 and the pipe body 310. Therefore, the unfiltered air discharged from the filter body 8 through the outlet 316 can be minimized.

[0514] The second filter 4b can receive air from the top and discharge it downwards, and the insertion surface 821 can be inclined such that its upper end is positioned further back than its lower end. Therefore, the air filtration efficiency can be improved by increasing the opening area of ​​the filter body 8. In addition, the tactile feel during insertion and removal can be improved by reducing the contact area between the filter body 8 and the pipe body 310.

[0515] The panel unit 9 may include a gripping part 911, which is configured to be gripped by a user or to receive external force.

[0516] The panel unit 9 may include a first panel 91 exposed to the outside of the pipe body 310 and a second panel 92 disposed behind the first panel 91. Therefore, the weight of the panel unit 9 can be reduced, and thus the filter body 8 can be prevented from sagging or from separating from the panel unit 9. Additionally, individual components can be inserted through the gap between the first panel 91 and the second panel 92.

[0517] The gripping portion 911 can be configured as a groove that is recessed rearward from the front surface of the first panel 91, and the gripping recess 912 through which the gripping portion 911 can pass can be formed in the second panel 92.

[0518] Since the gripping portion receiving groove 812, which is recessed along the gripping portion 911, is provided on the front surface 81 of the filter body 8, sufficient space can be ensured for the user to grip the gripping portion 911.

[0519] The front surface 81 may be provided with a front opening groove 811, the lower end of which is curved upward and does not interfere with the gripping portion receiving groove 812. Therefore, after the second filter 4b is pulled out a certain distance by gripping the gripping portion 911 of the panel unit 9, the user can easily pull it out by placing his hand on the lower end of the panel unit 9 and pulling the rear surface of the panel unit 9 forward.

[0520] Figure 35 A filter support unit 7 is shown, which is installed in the opening 350 to support the filter unit 4.

[0521] The pipe body 310 may include a filter support unit 7 to easily secure the filter unit 4 to the opening 350. The filter support unit 7 may be secured to the pipe module 30 and is configured to house the filter unit 4 thereon.

[0522] Figure 35 (a) shows an example of a filter support unit 7 that supports a filter, such as a first filter 4a, that is detachably attached to the pipe body 310. Figure 35(b) shows an example of filter support unit 7, which supports the second filter 4b.

[0523] exist Figure 35 A bend 71 may be formed on the filter support unit 7 shown in (a), with the ends of each side of the bend 71 bent. Therefore, the frame unit F can be stably supported by the filter support unit 7 via the bend 71.

[0524] The bend 71 may be formed only on a portion of the filter support unit 7. For example, when the angle between the side of the filter support unit 7 where the bend 71 is formed and the inner surface of the pipe body 310 is less than 90°, the bend 71 may be omitted because it may interfere with the separation of the filter unit 4.

[0525] Preferably, the bend 71 can be bent at an angle that does not restrict the path through which the filter body 8 is separated.

[0526] The filter support unit 7 can be configured as a magnet, so the frame unit F that houses the connecting magnet 42 can be easily attached and detached.

[0527] exist Figure 35 In (b), the support member 72 may be formed as a support flange 85 or a rotating member provided at the location where the flange 85 is formed.

[0528] The support member 72 may include a lower support portion 721 that supports the flange portion 85 or the rotating member from below, an upper support portion 723 that supports the flange portion 85 or the rotating member from above, and a connecting surface 722 that connects the lower support portion 721 and the upper support portion 723.

[0529] The connecting surface 722 can form the outer peripheral surface of the filter support unit 7, and the upper support portion 723 and the lower support portion 721 can be configured to protrude from one end and the other end of the connecting surface toward the interior of the filter support unit 7.

[0530] As described above, since the support member 72 is formed in a shape with a predetermined recessed depth, and since at least a portion of the flange portion 85 and the rotating member are accommodated and held in a fixed state within the support member 72, separation of the filter body 8 from the filter support unit 7 can be prevented.

[0531] The filter support unit 7 may include a mounting surface 73, on which an insertion surface 821 is mounted. The mounting surface 73 is located on the rear surface of the two side surfaces of the support member 72.

[0532] Since the mounting surface 73 is formed at an angle to mate with the insertion surface 821, the contact area between the insertion surface 821 and the mounting surface 73 can be increased, and the joint between the filter support unit 7 and the filter body 8 can be effectively shielded, thereby improving the filtration reliability of the filter unit 4.

[0533] Figure 36 A pipe module 30 is shown, which is equipped with a first filter 4a and a second filter 4b.

[0534] The filter unit 4 can be configured to obliquely traverse the flow cross section of the air introduced through the inlet 315 in the first direction and discharged toward the outlet 316 located in the second direction, or to vertically traverse the direction of air flow.

[0535] An inlet 315 may be provided on the top surface of the pipe body 310 to receive air downward from the roller 150, and an outlet 316 may be provided at the rear of the pipe body 310 to deliver air backward.

[0536] In the above cases, the filter unit 4 can be arranged parallel to the ground and perpendicular to the flow direction of the air conveyed downward from the inlet 315, or it can be arranged perpendicular to the flow direction of the air discharged backward through the outlet 316 in a direction perpendicular to the ground, or it can be inclined in the height direction inside the pipe body 310.

[0537] Regarding the upper and lower ends of the filter unit 4 that contacts the main body of the pipe 310, the upper end can be positioned further back than the lower end. In this case, the contact area between the filter unit 4 and the air can be increased, thereby improving the filtration efficiency.

[0538] The lower end of the filter unit 4 can be spaced apart from the front surface of the pipe body 310. Therefore, it is possible to prevent the filter unit 4 from separating or detaching due to interference with the cover panel 112 attached to the front of the pipe body 310.

[0539] In addition, when the magnetic field source 43 is housed in the periphery of the filter unit 4, the magnetic sensor 314 can be easily installed in the pipe body 310.

[0540] The main body of the pipe 310 can be configured as a hexahedron, with the inlet 315 located on the top surface and the outlet 316 located on the side surface sharing an edge with the top surface.

[0541] The upper end of the filter unit 4 can contact the rear surface of the pipe body 310, and the lower end of the filter unit 4 can contact the lower end of the pipe body 310.

[0542] The upper end of the filter unit 4 can be spaced apart from the top surface of the pipe body 310. In this case, additional components can be installed on the top surface of the pipe body 310, or components such as another filter can be installed, thereby increasing space utilization.

[0543] The filter unit 4 can be formed on a surface having edges as a pair of sides, the edges not contacting each other between the top surface where the inlet 315 is provided and the side surface where the outlet 316 is provided. In this case, the filtration efficiency of the filter unit 4 can be maximized.

[0544] The inlet 315 can be positioned closer to the front of the top surface of the pipe body 310.

[0545] Since the outlet 1411 of the bottom surface 141 of the roller 150 serves as the inlet 315, and the top surface of the pipe body 310 contacts the bottom surface 141 at its rear, including the inlet 315 formed at its front, processes such as separately manufacturing and connecting the top surface of the pipe body 310 can be omitted.

[0546] Regarding the upper and lower ends of the filter unit 4 that contacts the pipe body 310, the upper end can be positioned further forward than the lower end. Therefore, when the cover panel 112 is separated, the bottom surface of the pipe body 310 can be exposed. Thus, foreign matter that has separated from the filter unit 4 and accumulated in the pipe body 310 due to the operation of the dryer 1 or gravity can be easily cleaned. Figure 36 The diagram shows a second filter 4b configured to intersect perpendicularly with the flow cross-section of air supplied through inlet 315 in a first direction, and a first filter 4a configured to intersect obliquely with the flow cross-section of air filtered by the second filter 4b and moving toward outlet 316 in a second direction different from the first direction.

[0547] More specifically, the second filter 4b can be disposed on the top surface of the duct body 310 to filter the air moving downward from the roller 150, and the first filter 4a can be disposed below the second filter 4b to further filter the air that has been filtered by the second filter 4b and is moving toward the rear of the duct body 310.

[0548] When the second filter 4b is disposed on the top surface of the pipe body 310, the lower end of the first filter 4a can be spaced apart from the front surface of the pipe body 310 to ensure installation space for the second filter 4b. In this case, the insertion surface 821 and the mounting surface 73 can also be formed in positions that do not interfere with the first filter 4a.

[0549] As described above, when the top surface of the pipe body 310 contacts the bottom surface 141 at its rear and includes an inlet 315 formed at its front, a second filter 4b can be provided to shield the entire top surface of the pipe body 310, and thus the filtration reliability of the air introduced from the inlet 315 can be guaranteed.

[0550] The circulating fan 330 can be positioned closer to the left or right side of the duct body 310 or fan housing 320. Therefore, compared to the case where the circulating fan 330 is positioned at the center of the duct body 310 or fan housing 320, the area of ​​the vortex or the dead zone where the air does not flow can be reduced.

[0551] Therefore, the outlet 316 connected to the circulating fan 330 can also be positioned closer to the rear surface of the duct body 310.

[0552] The first filter 4a may include a lower end and an upper end that contact the pipe body 310, and the upper end may be positioned further back than the lower end, thus tilting in the height direction. When the first filter 4a is inserted through the inlet and the lower end of the first filter 4a contacts the pipe body 310, a magnetic sensor 314 may be provided to detect the magnetic field source 43.

[0553] Preferably, the magnetic field source 43 can be disposed at a relatively low end of the first filter 4a, and the magnetic sensor 314 can also be disposed on the lower part of the side surface of the pipe module 30 or on the side of the bottom surface of the pipe module 30. Therefore, the installation of the first filter 4a can only be sensed when the first filter 4a is properly positioned to be in close contact with the lower end of the pipe body 310. Thus, unfiltered air can be prevented from flowing through the gap at the opening at the lower end of the first filter 4a.

[0554] In such Figure 36 In the pipe module 30 shown in (a), which is equipped with filter unit 4, when it is necessary to inspect, replace, or clean filter unit 4, the user can pull out the second filter 4b by sliding it from the pipe body 310 and separate the first filter 4a toward the top surface where the second filter 4b is located, as shown in (a). Figure 36 As shown in (b). Therefore, the filter unit 4 can be easily accessed without disassembling the pipe module 30.

[0555] When a blockage is detected in the first filter 4a because the pressure difference measured by the first pressure sensor PS1 and the second pressure sensor PS2 exceeds a threshold, the first filter 4a can be separated from the pipe body 310 for cleaning or replacement. Since a relatively large amount of foreign matter adheres to one of the upward-facing surfaces of the first filter 4a, the scattering of accumulated foreign matter caused by the movement during the upward pulling of the first filter 4a can be minimized.

[0556] As described above, the circulating fan 330 can be configured to be spaced apart from the bottom surface of the duct body 310 by a predetermined distance. Therefore, eddies and other disturbances caused by the collision of air discharged downwards from the inlet 315 of the duct body 310 with the bottom surface of the duct body 310 can be minimized. At least one of a first pressure sensor PS1 or a second pressure sensor PS2 can be provided to measure the pressure at a portion spaced apart from the bottom surface of the duct body 310 by a predetermined distance or further.

[0557] The circulating fan 330 can be positioned closer to the left or right side of the duct body 310 or fan housing 320. Therefore, compared to the case where the circulating fan 330 is positioned at the center of the duct body 310 or fan housing 320, the area of ​​vortices or dead zones where air does not flow can be reduced. In this case, at least one of a first pressure sensor PS1 or a second pressure sensor PS2 can be provided to sense the pressure at the location of the duct body 310 positioned closer to the left or right side of the circulating fan 330, thereby improving the reliability of the sensing.

[0558] At least one of the first pressure sensor PS1 or the second pressure sensor PS2 can measure the pressure at the vertically extending portion of the inlet 315 disposed on the top surface of the pipe body 310. Additionally, at least one of the first pressure sensor PS1 or the second pressure sensor PS2 can measure the pressure at the longitudinally extending portion of the outlet 316. Therefore, error factors caused by interference with the inner wall or other components of the pipe body 310 can be minimized.

[0559] Similar to the first filter 4a, the second filter 4b may also be provided with a magnetic field source 43 detected by the magnetic sensor 314 to sense whether the second filter 4b is attached or removed.

[0560] Multiple magnetic sensors 314 can be provided to detect multiple filter units 4, such as a first filter 4a and a second filter 4b, respectively, and the magnetic sensors 314 are sufficient as long as they detect magnetic forces regardless of their type, such as Hall elements, magnetoresistive elements or optical fibers.

[0561] When the rear surface 82 or insertion surface 821 of the second filter 4b comes into contact with the pipe body 310, the magnetic sensor 314 can detect the magnetic field source 43 of the second filter 4b.

[0562] Preferably, the magnetic field source 43 can be disposed at the opposite rear of the second filter 4b, and the magnetic sensor 314 can also be disposed on the side of the rear surface of the pipe body 310. Therefore, the installation of the second filter 4b can only be sensed when the second filter 4b is properly positioned to be in close contact with the rear surface of the pipe body 310. Thus, unfiltered air can be prevented from flowing through the gap between the rear surface of the second filter 4b and the opening.

[0563] This disclosure can be modified and implemented in various forms, and the scope of the claims is not limited to the embodiments described above. Therefore, when a modified embodiment includes a component of the claims of this disclosure, it should be considered to fall within the scope of this disclosure.

Claims

1. A filter unit for filtering air, the filter unit comprising: A frame unit, the frame unit comprising an inner frame and an outer frame connected to the inner frame; A wire mesh screen, which is fixed by the connection between the inner frame and the outer frame; as well as A shape retainer is inserted between the inner frame and the outer frame to maintain the shape of the frame unit.

2. The filter unit according to claim 1, wherein, The shape retainer is made of a material with higher stiffness than the frame unit to prevent the frame unit from deforming.

3. The filter unit according to claim 1, wherein, The frame unit houses a connecting magnet that generates magnetic force within the frame unit, enabling it to be attached to and detached from an object.

4. The filter unit according to claim 3, wherein, The inner frame includes a connecting magnet receiving slot, in which the connecting magnet is received, and The connecting magnet is housed in the connecting magnet receiving groove, spaced apart from the corner portion connecting the side portion of the inner frame and the side portion of the outer frame.

5. The filter unit according to claim 3, wherein, The connecting magnet is made of an elastic material.

6. The filter unit according to claim 1, wherein, The shape retainer is made of a metallic material and includes at least one weld line formed by welding the ends of the shape retainer to form a closed loop.

7. The filter unit according to claim 6, wherein, The fusion line is formed at the corner by fusing the ends of the corners of the inner frame and the outer frame together. The shape retainer includes at least one weld line formed by welding the ends of the shape retainer to form a closed loop, and When the shape retainer is inserted into the frame unit, the weld line is formed at a point that does not interfere with the fusion line.

8. The filter unit according to claim 1, wherein, The protrusions and depressions are formed as protrusions or recesses from the contact surfaces of the inner frame and the outer frame facing each other, and The outer frame is connected to the inner frame by having the protrusions and recesses mate with each other.

9. The filter unit according to claim 8, wherein, In the aforementioned uneven portion, the protrusions formed as projections from the contact surface include: A first extension, the first extension extending from the contact surface; and A second extension extends from the end of the first extension in a shape that is at least partially different from that of the first extension.

10. The filter unit according to claim 9, wherein, In a cross section perpendicular to the protrusion direction from the contact surface, at least a portion of the cross section of the second extension does not overlap with the cross section of the first extension relative to the protrusion direction.

11. The filter unit according to claim 9, wherein, In a cross-section extending perpendicular to each side of the frame, the end of the second extension extending from the end of the first extension is formed as a circle.

12. The filter unit according to claim 9, wherein, In a cross-section extending perpendicular to each side of the frame, the second extension is configured as a hook on one side of the end of the first extension.

13. The filter unit according to claim 8, wherein, A shape retainer receiving groove is formed in at least one of the inner frame or the outer frame, and the shape retainer is received in the shape retainer receiving groove.

14. The filter unit according to claim 13, wherein, The frame unit is provided with multiple protrusions and recesses, and the multiple protrusions and recesses are arranged in a row on each side of the frame unit along a direction from the inside to the outside of the frame unit. The shape retainer receiving groove is formed between the plurality of protrusions and recesses.

15. The filter unit according to claim 1, wherein, The shape retainer is made of a material whose torsional stiffness is equal to or greater than the torsional moment of the frame generated by the tension applied by the mesh screen.

16. The filter unit according to claim 1, wherein, A magnetic field source is housed within the frame unit, and a magnetic sensor detects magnetic signals from the magnetic field source.

17. The filter unit according to claim 16, wherein, The protrusions and depressions are formed as protrusions or recesses from the contact surfaces of the inner frame and the outer frame facing each other. The inner frame and the outer frame are connected by the engagement of the protrusions and recesses, and The magnetic field source is inserted to replace a portion of the protrusion and is fixed between the inner frame and the outer frame.

18. The filter unit according to claim 1, wherein, The sealing ribs are formed to project outwards from at least a portion of the edge of the outer surface of the outer frame, and When the frame unit is fixed to the object, the sealing rib prevents air from flowing through the joint between the outer peripheral surface of the frame and the object.

19. The filter unit according to claim 1, wherein, The handle is formed to protrude from at least a portion of the outer frame to the outside of the pipe so that it can be gripped by a user.

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