Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
  • D06F34/14—Arrangements for detecting or measuring specific parameters
  • D06F34/26—Condition of the drying air, e.g. air humidity or temperature
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F58/00—Domestic laundry dryers
  • D06F58/20—General details of domestic laundry dryers 
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F58/00—Domestic laundry dryers
  • D06F58/20—General details of domestic laundry dryers 
  • D06F58/26—Heating arrangements, e.g. gas heating equipment
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
  • D06F2103/28—Air properties
  • D06F2103/32—Temperature
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
  • D06F2103/52—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to electric heating means, e.g. temperature or voltage
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
  • D06F2105/28—Electric heating
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
  • D06F2105/32—Air flow control means

Definitions

• the present invention provides a drying air duct assembly.
• the drying air duct assembly of the present invention includes: a housing, provided with an air inlet and an air outlet; a blower, configured to be able to introduce an airflow outside the housing into the housing through the air inlet; a heating member, disposed inside the housing and positioned between the air inlet and the air outlet, the heating member having a heating air duct, an inlet end of the heating air duct communicating with the air inlet such that the airflow entering into the housing through the air inlet flows into the heating air duct, the heating member including a heating body which is capable of heating the airflow flowing through the heating air duct, and an outlet end of the heating air duct communicating with the air outlet such that hot airflow inside the heating air duct flows out of the air outlet; and a temperature control member, disposed inside the heating air duct, the temperature control member being connected in series with the heating body of the heating member to form a closed loop, and the temperature control member being used to detect temperature within the heating air duct, and
• the temperature control member includes a first over-temperature protection switch.
• the first over-temperature protection switch is connected in series with the heating body and is configured to open the loop in a case where the temperature within the heating air duct exceeds a first set temperature.
• the first over-temperature protection switch is further configured to close the loop in a case where the temperature within the heating air duct is lower than the first set temperature.
• the temperature control member further includes a second over-temperature protection switch.
• the second over-temperature protection switch is connected in series with both of the first over-temperature protection switch and the heating body, and the second over-temperature protection switch is configured to open the loop in a case where the temperature within the heating air duct exceeds a second set temperature, and not to close the loop in a case where the temperature within the heating air duct is lower than the second set temperature, where the first set temperature is lower than the second set temperature.
• the driving mechanism includes an electromagnetic member.
• the sliding plate is magnetic.
• the electromagnetic member can generate a magnetic attraction force on the sliding plate so as to force the sliding plate to move out of the heating air duct.
• the driving mechanism further includes an elastic reset member, which enables the sliding plate to move back into the heating air duct after the electromagnetic member is deenergized.
• the drying air duct assembly further includes a backdraft prevention member disposed at the air outlet.
• the backdraft prevention member is configured to be able to open the air outlet, to allow the airflow inside the heating air duct to flow out of the air outlet.
• the backdraft prevention member is further configured to be able to close the air outlet, to prevent foreign matters outside the housing from entering the housing through the air outlet.
• the backdraft prevention member includes a plurality of sealing substrates and a plurality of valve plates.
• the plurality of the sealing substrates and the plurality of the valve plates are sequentially distributed at intervals.
• the sealing substrates are installed on the housing to divide the air outlet into a plurality of air outlet channels.
• the valve plates are pivotally connected with the housing. The valve plates are configured to be able to abut against the sealing substrates to close the air outlet channels when they are in a first working state, and move away from the sealing substrates to open the air outlet channels when they are in a second working state.
• the present invention provides a laundry treatment device.
• the laundry treatment device of the present invention includes the drying air duct assembly as described above.
• the temperature control member in the heating air duct, on the one hand, the temperature within the heating air duct can be accurately monitored, thereby achieving a more accurate high-temperature hot air, improving the drying efficiency and shortening the time for the drying; and on the other hand, the loop can be opened when the temperature within the heating air duct exceeds the set temperature, thereby avoiding the drying air duct assembly from being burned out due to over-high temperature of the hot air inside the heating air duct, and further avoiding potential safety hazards.
• the temperature of the hot air inside the heating air duct can be detected more accurately, and the loop can be opened when the temperature of the hot air inside the heating air duct is over high, thereby preventing the superconducting heating wire from being continuously heated and causing the temperature within the heating air duct to continuously raise and deviate from the set temperature.
• the loop can be closed when the temperature of the hot air inside the heating air duct is lower than the set temperature, enabling the superconducting heating wire to be continuously heated and raise the temperature within the heating air duct rise to reach the set temperature, thereby more accurately controlling the temperature of the hot air inside the heating air duct.
• the configuration where the heating member is wound around the supporting skeleton as the superconducting heating wire avoid the phenomenon that the surface of the heating tube in the prior art is burned red, thereby preventing potential safety hazards such as scald and fire, and greatly improving the safety for the drying air duct; and on the other hand, can raise the temperature quickly and improve the heating efficiency, due to the advantages of the superconducting heating wire such as low thermal resistance and high heat exchange efficiency, thereby greatly improving the drying efficiency of the laundry treatment device.
• the superconducting heating wire has the characteristics of rapid heat dissipation and cooling upon power failure, which can reduce the heat loss, improve the heat utilization rate and reduce the energy waste.
• disposing the driving mechanism as an electromagnetic member can avoid using the motor, thereby reducing the cost of the driving mechanism, and further reducing the cost of the drying air duct assembly.
• the structure of the driving mechanism can be simplified, improving the simplicity of the drying air duct assembly.
• the laundry foams or clothes flocks in the laundry treatment device can be prevented from entering the drying air duct assembly through the air outlet when the drying air duct assembly is not in operation, thereby avoiding the blockage of the drying air duct assembly; and on the other hand, the air outlet can be opened to allow the airflow inside the heating air duct to flow out of the air outlet when the drying air duct assembly is in operation, facilitating the delivery of the hot air, thereby avoiding affecting the normal use of the drying air duct assembly.
• disposing the backdraft prevention member in the form of sealing substrates and valve plates can avoid using the motor, thereby reducing the cost of the backdraft prevention member, and further reducing the cost of the drying air duct assembly.
• the structure of the drying air duct assembly can be simpler and lighter.
• the hot air blown out of the air outlet can be divided into a plurality of airflows, enabling the hot air to be blown into a drying chamber of the laundry treatment device more evenly, thereby improving the drying effect.
• the laundry treatment device further provided by the present invention on the basis of the above technical solution has the beneficial effects of the above drying air duct assembly due to the employment of the above-introduced drying air duct assembly.
• the temperature of the hot air of the laundry treatment device of the present invention is more accurate, the drying efficiency is higher, the safety for the device is higher, the structure is simpler, the cost is lower, the repair of the laundry treatment device is more convenient, and the user experience is better.
• Fig. 1 is a first structural schematic diagram of a drying air duct assembly of the present invention
• Fig. 2 is a second structural schematic diagram of a drying air duct assembly of the present invention
• Fig. 3 is a structural schematic diagram of a section view taken along line A-A in Fig. 2 .
• the drying air duct assembly of the present invention includes a housing 1, a blower 2, a heating member and a temperature control member.
• the housing 1 is provided with an air inlet 101 and an air outlet 102, an accommodating cavity 103 (as shown in Figs. 6 and 6 ) is disposed inside the housing 1, and both the air outlet 102 and the air inlet 101 communicate with the accommodating cavity 103.
• the blower 2 is configured to be able to introduce an airflow outside the housing 1 into the housing 1 through the air inlet 101, and the air outlet 102 is communicated with a drying chamber of the laundry treatment device, so as to deliver hot air into the drying chamber.
• the heating member is disposed inside the accommodating cavity 103 of the housing 1 and is positioned between the air inlet 101 and the air outlet 102.
• the heating member is provided with a heating air duct 30.
• An inlet end 301 of the heating air duct 30 is communicated with the air inlet 101, allowing the airflow which enters the housing 1 through the air inlet 101 to flow into the heating air duct 30.
• the heating member includes a heating body which is capable of heating the airflow flowing through the heating air duct 30.
• An outlet end 302 of the heating air duct 30 is communicated with the air outlet 102, allowing the hot airflow inside the heating air duct 30 to flow out of the air outlet 102.
• the temperature control member 7 is disposed inside the heating air duct 30, and is connected in series with the heating body of the heating member to form a closed loop.
• the temperature control member 7 is used to detect temperature within the heating air duct 30, and open the loop in a case where the temperature within the heating air duct 30 is greater than a set temperature.
• the temperature within the heating air duct 30 can be accurately monitored, thereby achieving a more accurate high-temperature hot air, improving the drying efficiency and shortening the time for the drying; and on the other hand, the loop can be opened when the temperature within the heating air duct 30 exceeds the set temperature, thereby preventing the drying air duct assembly from being burned out due to over-high temperature of the hot air inside the heating air duct 30, and further avoiding potential safety hazards.
• the housing 1 may be configured integrally, or may be constructed from an upper housing and a lower housing, and so on by those skilled in the art. Such adjustments and modifications to the specific configuration of the housing 1 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the housing 1 of the present invention is formed by connecting an upper housing 11 and a lower housing 12.
• the air inlet 101 is disposed on the lower housing 12, and the air outlet 102 is formed between the upper housing 11 and the lower housing 12.
• the upper housing 11 and the lower housing 12 may be fixedly connected by fasteners such as bolts, or are clamped with each other to form the housing 1, and so on by those skilled in the art.
• fasteners such as bolts
• Such adjustments and modifications to the specific fixation between the upper housing 11 and the lower housing 12 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• Fig. 4 is a structural schematic diagram of a section view taken along line B-B in Fig. 3 .
• fastening holes 15 are formed in both of the upper housing 11 and the lower housing 12 of the present invention, and the upper housing 11 and the lower housing 12 are fixedly connected by bolts.
• a sealing element 14 is disposed between the upper housing 11 and the lower housing 12 to seal the housing 1.
• the upper housing 11 may be configured integrally, or constructed from two parts, or constructed from a plurality of parts, and so on by those skilled in the part. Such adjustments and modifications to the specific configuration of the upper housing 11 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the heating member can be overhauled by disassembling the first upper housing 1101 from the lower housing 12 (as shown in Figs. 5 and 6 ), eliminating the need to disassemble the entire upper housing 11 from the lower housing 12, thereby improving the overhauling efficiency.
• the air inlet 101 is disposed on the lower housing 12, and the air outlet 102 is formed between the upper housing 11 and the lower housing 12.
• the blower 2 may be disposed outside the housing 1 by those skilled in the art, where an exhaust port of the blower 2 is communicated with the air inlet 101.
• the blower 2 may be disposed inside the housing 1, where a suction port of the blower 2 is communicated with the air inlet 101 and the exhaust port of the blower 2 is communicated with the inlet end 301 of the heating channel.
• a suction port of the blower 2 is communicated with the air inlet 101 and the exhaust port of the blower 2 is communicated with the inlet end 301 of the heating channel.
• a heating tube as the heating member, where the heating air duct 30 is formed inside the heating tube; or use a heating ring as the heating member, where the heating air duct 30 is formed inside the heating ring; or provide the heating member in the form of a heating body, a supporting skeleton or an air duct shell, where a superconducting heating wire or an electromagnetic heating coil is wound around the supporting skeleton and the heating air duct 30 is formed inside the air duct shell, and so on.
• Such adjustments and modifications to the specific placement of the heating member do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• Fig. 5 is a structural schematic diagram with the first upper housing hidden, in Fig. 1 ; and Fig. 6 is a structural schematic diagram with an insulating shell partially hidden, in Fig. 5 .
• the heating member of the present invention further includes a supporting skeleton 32 and an insulating shell 33.
• the supporting skeleton 32 and the heating body both are disposed inside the insulating shell 33, the heating air duct 30 is formed inside the insulating shell 33, and the heating body is a superconducting heating wire 31 which is wound around the exterior of the supporting skeleton 32.
• the configuration where the heating member is disposed in the form of the heating tube or the heating ring can prevent the phenomenon that the surface of the heating tube in the prior art is burned red, thereby avoiding potential safety hazards such as scald and fire, and greatly improving the safety of the drying air duct; and on the other hand, can raise the temperature quickly and improve the heating efficiency, due to the advantages of the superconducting heating wire 31 such as low thermal resistance and high heat exchange efficiency, thereby greatly improving the drying efficiency of the laundry treatment device.
• the superconducting heating wire 31 has the characteristics of rapid heat dissipation and cooling upon power failure, which can reduce the heat loss, improve the heat utilization rate and reduce the energy waste.
• the heating body is not limited to the superconducting heating wire 31.
• the heating body may also be provided as a superconducting heating sheet, and so on. Such adjustments and modifications to the specific configuration of the superconducting heating body do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the heating body is provided as the superconducting heating wire 31.
• the cross section of the supporting skeleton 32 may be designed as a rectangular, circular, or X shape, and so on by those skilled in the art. Such adjustments and modifications to the specific configuration of the supporting skeleton 32 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the supporting skeleton 32 of the present invention includes supporting plates.
• Four supporting plates are provided and connected with each other to form the supporting skeleton 32 with an X-shaped cross section.
• a plurality of grooves 322 are disposed at the edge positions of the supporting skeleton 32.
• the superconducting heating wire 31 is spirally wound around the X-shaped supporting skeleton 32, and is positioned inside the grooves 322 on the supporting skeleton 32.
• disposing the cross section of the supporting skeleton 32 as the X shape can reduce, the contact area between the superconducting heating wire 31 and the supporting skeleton 32, thereby improving the heat dissipation efficiency of the superconducting heating wire 31, and further improving the drying efficiency of the drying air duct.
• Disposing the plurality of grooves 322 at the edge positions of the supporting skeleton 32 and embedding the superconducting heating wire 31 into the grooves 322 can prevent the superconducting heating wire 31 from being mispositioned, and avoiding the superconducting heating wire 31 from falling off the supporting skeleton 32, thereby improving the stability of the drying air duct assembly.
• the four supporting plates may be disposed integrally, or may be adhered to each other, and so on by those skilled in the art.
• Such flexible adjustments and modifications do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the supporting skeleton 32 may be made of a mica material, such as a mica sheet, or may be made of a ceramic material, or may be made of a glass fiber ceramic composite material, and so on by those skilled in the art.
• a mica material such as a mica sheet
• a ceramic material such as a ceramic
• a glass fiber ceramic composite material such as a glass fiber ceramic composite material
• the supporting skeleton 32 is configured to be made of a mica sheet.
• the insulating shell 33 may be made a mica material, such as a mica sheet, or may be made of a ceramic material, or may be made of a glass fiber ceramic composite material, and so on by those skilled in the art. Such adjustments and modifications to the specific materials of the insulating shell 33 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• a plurality of clip-on limiting ribs 13 are disposed inside the housing 1 of the present invention, to clamp the insulating shell 33 into the housing 1.
• the plurality of clip-on limiting ribs 13 By disposing the plurality of clip-on limiting ribs 13 inside the housing 1, on the one hand, it is convenient to clamp the insulating shell 33 into the housing 1. Compared with the configuration where the insulating shell 33 is fixed inside the housing 1 by fasteners, clamping the insulating shell 33 into the housing 1 can reduce using the fasteners, thereby reducing components of the drying air duct assembly, and meanwhile, improving the installation efficiency of the insulating shell 33. On the other hand, by disposing the plurality of clip-on limiting ribs 13, more airflow introduced into the housing 1 through the blower 2 can enter the heating air duct 30, thereby increasing the amount of the hot air output from the air outlet 102, and further improving the drying efficiency.
• the number of the clip-on limiting ribs 13 is not limited to being a plurality.
• two clip-on limiting ribs 13 may also be disposed, and so on.
• Such adjustments and modifications to the specific number of the clip-on limiting ribs 13 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the plurality of clip-on limiting ribs 13 are provided.
• the temperature control member 7 may be provided as an over-temperature protection switch by those skilled in the art, where the over-temperature protection switch is connected in series with the heating body.
• the over-temperature protection switch 7 is configured to open the loop in a case where the temperature within the heating air duct 30 exceeds a first set temperature, and further configured to close the loop in a case where the temperature within the heating air duct 30 is lower than the first set temperature.
• the temperature control member 7 may be disposed only as an over-temperature fuse switch, where the over-temperature fuse switch is configured to open the loop in a case where the temperature within the heating air duct 30 exceeds a second set temperature.
• the temperature control member 7 may be provided as both an over-temperature protection switch 71 and an over-temperature fuse switch 72, where the over-temperature protection switch 71 and the over-temperature fuse switch 72 both are connected in series with the heating body, and so on.
• Such adjustments and modifications to the specific configuration of the temperature control member 7 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the temperature control member 7 of the present invention includes the first over-temperature protection switch 71 and the second over-temperature protection switch 72.
• the first over-temperature protection switch 71 and the second over-temperature protection switch 72 both are connected in series with the heating body.
• the first over-temperature protection switch 71 is configured to open the loop in a case where the temperature within the heating air duct 30 exceeds the first set temperature, and further configured to close the loop in a case where the temperature within the heating air duct 30 is lower than the first set temperature.
• the second over-temperature protection switch 72 is configured to open the loop in a case where the temperature within the heating air duct 30 exceeds the second set temperature, and further configured to close the loop in a case where the temperature within the heating air duct 30 is lower than the second set temperature.
• the first set temperature is lower than the second set temperature.
• the loop can be opened when the temperature of the hot air inside the heating air duct 30 is over high, preventing the superconducting heating wire 31 from being continuously heated, thereby avoiding continuous temperature rise in the heating air duct and deviation from the set temperature.
• the loop can be closed when the temperature of the hot air inside the heating air duct 30 is lower than the set temperature, enabling the superconducting heating wire 31 to be continuously heated and raising the temperature within the heating air duct 30 rise to reach the set temperature, thereby more accurately controlling the temperature of the hot air inside the heating air duct 30.
• the loop can be opened by melting, preventing the superconducting heating wire 31 from being continuously heated and burning up the housing 1, thereby avoiding scald or fire, achieving a double over-temperature protection for the drying air duct, and improving the use safety of the laundry treatment device.
• the temperature control member 7 may be disposed at the inlet end 301 of the hot air channel 30, or may be disposed at the middle of the hot air channel 30, or may be disposed at the outlet end 302 of the hot air channel 30, and so on by those skilled in the art. Such adjustments and modifications to the specific placement of the temperature control member 7 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the temperature control member 7 is disposed at the middle of the hot air channel 30.
• the driving mechanism 42 may be provided as a motor, or may be provided as an electromagnetic member by those skilled in the art, where the sliding plate 41 is magnetic, and when energized, the electromagnetic member can generate a magnetic attraction force on the sliding plate 41 so as to force the sliding plate 41 to move out of the heating air duct 30, and so on.
• the driving mechanism 42 may be provided as a motor, or may be provided as an electromagnetic member by those skilled in the art, where the sliding plate 41 is magnetic, and when energized, the electromagnetic member can generate a magnetic attraction force on the sliding plate 41 so as to force the sliding plate 41 to move out of the heating air duct 30, and so on.
• the driving mechanism 42 of the present invention includes an electromagnetic member 421.
• the sliding plate 41 is magnetic.
• the electromagnetic member 421 can generate a magnetic attraction force on the sliding plate 41 so as to force the sliding plate 41 to move out of the heating air duct 30.
• the driving mechanism 42 further includes an elastic reset member 422, which enables the sliding plate 41 to move back into the heating air duct 30 after the electromagnetic member 421 is deenergized.
• the elastic reset member 422 may be provided as a spring, or may be provided as an elastic rope, and so on by those skilled in the art. Such adjustments and modifications to the specific configuration of the elastic reset member 422 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the sliding plate 41 may be made of a magnetic material, or a magnetic element may also be disposed on one side, corresponding to the electromagnetic member 421, of the sliding plate 41, and so on by those skilled in the art.
• Such flexible adjustments and modifications do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• a magnetic element is disposed on one side, corresponding to the electromagnetic member 421, of the sliding plate 41.
• the drying air duct assembly of the present invention further includes a first cord take-up member 431 and a second cord take-up member 432.
• the first cord take-up member 431 and the second cord take-up member 432 are positioned at two ends of the temperature control member 7 respectively.
• the sliding plate 41 moves out of the heating air duct 30
• the power cord 6 inside the first cord take-up member 431 is released, so that the sliding plate 41 moves towards the second cord take-up member 432, and the power cord 6 between the sliding plate 41 and the second cord take-up member 432 is retracted into the first cord take-up member 431.
• the power cord 6 can be retracted into the first cord take-up member 431 or the second cord take-up member 432 when the sliding plate 41 moves out of or back into the heating air duct 30, preventing the power cord 6 from being accumulated and entangled, and further facilitating the repair of the temperature control member 7.
• first cord take-up member 431 and the second cord take-up member 432 may be provided as automatic cord take-up reels, or may be provided as automatic cord take-up units, and so on by those skilled in the art. Such adjustments and modifications to the specific configuration of the first cord take-up member 431 and the second cord take-up member 432 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the first cord take-up member 431 and the second cord take-up member 432 both are provided as automatic cord take-up units.
• the sliding plate 41 When the drying air duct assembly is in normal use, the sliding plate 41 is positioned inside the heating air duct 30. In this case, the torsion spring on the first cord take-up member 431 is in a loosened state, and the torsion spring on the second cord take-up member 432 is in a tensioned state.
• the temperature detection member 7 needs to be repaired, as the driving mechanism 42 drives the sliding plate 41 to move towards the second cord take-up member 432, the power cord 6 on the first cord take-up member 431 is released.
• the torsion spring of the first cord take-up member 431 gradually changes from the loosened state to the tensioned state
• the torsion spring of the second cord take-up member 432 gradually changes from the tensioned state to the loosened state
• the power cord 6 between the sliding plate 41 and the second cord take-up member 432 is retracted into the second cord take-up member 432.
• Fig. 7 is a partially enlarged schematic diagram at C in Fig. 3 .
• the backdraft prevention member 5 may be provided as motors and valve plates, where the air outlet 102 can be closed when the drying air duct assembly is not in operation, and the motors drive the valve plates to move relative to the housing 1 so as to open the air outlet 102 when the drying air duct assembly is in operation.
• the backdraft prevention member 5 may be provided as a backdraft prevention valve, where the backdraft prevention valve is pivotally connected with the housing 1.
• the backdraft prevention valve abuts against the housing 1 to close the air outlet 102 when the drying air duct assembly is not in operation, and can be pushed by the airflow inside the housing 1 to rotate relative to the housing 1 and make the air outlet 102 opened when the drying air duct assembly is in operation, thereby facilitating the delivery of the hot air, and so on.
• Such adjustments and modifications to the specific configuration of the backdraft prevention member 5 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• disposing the backdraft prevention member 5 as the sealing substrates 51 and valve plates 52 can avoid using the motor, thereby reducing the cost of the backdraft prevention member 5, and further reducing the cost of the drying air duct assembly.
• the structure of the drying air duct assembly can be simpler and lighter.
• the hot air blown out of the air outlet 102 can be divided into a plurality of airflows, so that the hot air can be blown into the drying chamber of the laundry treatment device more evenly, improving the drying effect.
• the plurality of the sealing substrates 51 and the plurality of the valve plates 52 are disposed.
• two sealing substrates 51 may be disposed, and accordingly, one valve plate 52 may be disposed, and the two sealing substrates 51 are positioned at both sides of the valve plate 52.
• three sealing substrates 51 may be disposed, and accordingly, two valve plates 52 may be disposed, and the sealing substrates 51 and the valve plates 52 are sequentially distributed at intervals, and so on.
• Such adjustments and modifications to the specific numbers of the sealing substrates 51 and the valve plate 52 do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.
• the plurality of the sealing substrates 51 and the plurality of the valve plates 52 are disposed.
• the sealing substrates 51 may be made of materials with sealing effects, such as rubber materials.
• sealing gaskets may be disposed on the sealing substrates 51, so that a sealing between the valve plate 52 and the sealing substrates 51 can be realized when the valve plate 52 abuts against the sealing substrates 51, and so on.
• the sealing substrates 51 are made of the rubber materials.
• a fixing structure may be disposed on the drying air duct assembly, enabling the drying air duct assembly to be installed on the laundry treatment device by the fixing structure.
• a clip-on structure may be disposed on the drying air duct assembly, enabling the drying air duct assembly to be installed on the laundry treatment device through clamping the drying air duct assembly to the laundry treatment device by the clip-on structure, and so on.
• the drying air duct assembly of the present invention further includes a fixing structure disposed on the housing 1.
• the drying air duct assembly is installed on the laundry treatment device by the fixing structure.
• the laundry treatment device may be provided as a washer and dryer combo, or may be provided as a laundry dryer, or may be disposed a laundry care machine, and so on.
• Such adjustments and modifications to the specific configuration of the laundry treatment device do not deviate from the principle and scope of the present invention, and shall consequently fall within the protection scope of the present invention.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Drying Of Solid Materials (AREA)
• Detail Structures Of Washing Machines And Dryers (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=90729838

Family Applications (1)

Country Status (5)

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Family Cites Families (6)

• 2022
  • 2022-10-21 CN CN202211295427.XA patent/CN117917495B/zh active Active
• 2023
  • 2023-10-16 WO PCT/CN2023/124753 patent/WO2024083077A1/zh not_active Ceased
  • 2023-10-16 EP EP23879066.1A patent/EP4606945A4/de active Pending
  • 2023-10-16 JP JP2025522606A patent/JP2025534793A/ja active Pending
  • 2023-10-16 AU AU2023363913A patent/AU2023363913A1/en active Pending

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