CN116641215A - Drum clothes dryer with built-in dehumidifying mechanism - Google Patents
Drum clothes dryer with built-in dehumidifying mechanism Download PDFInfo
- Publication number
- CN116641215A CN116641215A CN202310524604.5A CN202310524604A CN116641215A CN 116641215 A CN116641215 A CN 116641215A CN 202310524604 A CN202310524604 A CN 202310524604A CN 116641215 A CN116641215 A CN 116641215A
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- drum
- roller
- dehumidifying
- rotating wheel
- face
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- 238000009423 ventilation Methods 0.000 claims abstract description 3
- 230000008929 regeneration Effects 0.000 claims description 37
- 238000011069 regeneration method Methods 0.000 claims description 37
- 238000001816 cooling Methods 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 239000003570 air Substances 0.000 description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000007791 dehumidification Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- 239000002274 desiccant Substances 0.000 description 5
- 239000012080 ambient air Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- 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
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A tumble dryer with an incorporated dehumidifying mechanism, comprising: a drum for holding the laundry to be dried; a mechanical system for driving the drum to rotate; a ventilation system, wherein a fan drives air to pass through the roller cavity; a dehumidifying mechanism for reducing the humidity of the air; the dehumidifying mechanism is a rotating wheel dehumidifying mechanism, and a dehumidifying rotating wheel of the mechanism is arranged between a back plate of a clothes dryer box body and the bottom of the roller along the axis direction of the roller and is close to the bottom of the roller. The design reduces the working temperature of the inner cavity of the roller compared with the traditional design, and simultaneously, the whole structure of the clothes dryer is compact, the external dimension of the clothes dryer is smaller, and the wet and hot air path discharged by the roller is received to be the shortest, so that the air path structure is simplified, and the operation efficiency is improved.
Description
Technical Field
The application relates to a drum clothes dryer with a dehumidifying mechanism, belonging to the classification of IPC (IPC) of D06F58/10 and D06F58/24.
Background
The traditional drum clothes dryer with a dehumidifying mechanism, such as a heat pump type clothes dryer or a condensing type clothes dryer, has the defects that the working temperature of the inner cavity of the drum is high, and the drying of part of clothes is damaged, and needs to be improved.
Regarding terms and common knowledge, unless specified in the specification, reference may be made to national standards GB/T23118-2008 "household and similar use Drum washer-dryer" and national industry standards QB/T4685-2014 "household and similar use Heat Pump dryer" and QB/T4109-2010 "Combined Rotary dehumidifier", percent of employment on the job for maintenance of household appliances (1 st edition of mechanical Industrial Press 2011), proficiency of maintenance of washing machine from entry to proficiency (supervalue edition) (2012 of China railway Press), dictionary of refrigeration engineering technology (1 st edition of Shanghai transportation university press 1987), motor engineering Manual of 1978-1 st edition of mechanical Industrial Press or 2 nd edition of 1997, and "mechanical engineering Manual". See also patent publications CN205821818U, CN204370204U, CN201190237Y, CN113969495A and CN114775239a, etc., network data such as hundred degree encyclopedia related entries.
Disclosure of Invention
The application aims to solve the technical problems that: the working temperature of the inner cavity of the roller clothes dryer with the dehumidifying mechanism can be reduced compared with that of the traditional design.
The technical scheme for solving the technical problems is as follows: a tumble dryer with an incorporated dehumidifying mechanism, comprising:
-a drum for holding the laundry to be dried;
-a mechanical system driving the rotation of the drum;
-a ventilation system, the fan of which drives air through the drum cavity;
-a dehumidifying mechanism for reducing the humidity of the air;
the method is characterized in that: the dehumidifying mechanism is a rotating wheel dehumidifying mechanism, and a dehumidifying rotating wheel of the mechanism is arranged between a back plate of a clothes dryer box body and the bottom of the roller along the axis direction of the roller and is close to the bottom of the roller.
The design utilizes the characteristic that the temperature of the dehumidifying output air of the rotating wheel is lower, and the largest dehumidifying rotating wheel in the functional mechanism is equivalent to the diameter of the drum of the clothes dryer, and the dehumidifying rotating wheel is arranged between the back plate of the box body of the clothes dryer and the bottom of the drum along the axis direction of the drum and is close to the bottom of the drum, so that the working temperature of the inner cavity of the drum is reduced compared with that of the traditional design, the whole structure of the clothes dryer is compact, the external dimension of the clothes dryer is smaller, and the wet and hot air path exhausted by the drum is received to be shortest, thereby simplifying the air path structure and improving the operation efficiency.
The typical design is: the dehumidifying rotating wheel is arranged coaxially with the roller. This is the most compact overall structure of the dryer and the most smooth structure for receiving the hot and humid air exhausted from the drum.
One of the typical designs of the drum dryer is:
a) A filter screen, a heating surface of a condenser and left and right end surfaces of a dehumidifying rotating wheel are sequentially arranged between a back plate of a clothes dryer box body and the bottom of the drum along the axis direction of the drum from a rear opening of the drum;
b) The flow section of the dehumidifying rotating wheel along the axial direction of the roller is divided into a large sector-shaped hygroscopic zone and a small sector-shaped regeneration zone, and each dehumidifying rotating wheel is provided with a flow passage:
the air inlet of the main fan of the dehumidifying rotating wheel is attached to the right end face of the moisture absorption area along the axis direction of the roller, and the air outlet is communicated with the cavity of the roller;
the air outlet of the regeneration circulating fan passes through the electric heater to be led to the left end face of the regeneration zone, and the air outlet of the right end face of the regeneration zone passes through the cooling surface of the condenser and then returns to the air inlet of the regeneration circulating fan.
The dehumidifying air flow of the clothes dryer is closed loop, so that the energy is saved.
The second typical design of the drum dryer is:
a) A filter screen, a cooling surface of a condenser, a 1 st electric heater, left and right end surfaces of a dehumidifying rotating wheel and a left end opening of the drum are sequentially arranged between a back plate of a clothes dryer box body and the bottom of the drum along the axis direction of the drum from the back plate of the clothes dryer box body;
b) The flow section of the dehumidifying rotating wheel along the axial direction of the roller is divided into a large sector-shaped hygroscopic zone and a small sector-shaped regeneration zone, and each dehumidifying rotating wheel is provided with a flow passage:
a main fan is arranged at the opening of the back plate of the clothes dryer box body, and the air inlet of the main fan is communicated with the opening at the right end of the roller;
the air outlet of the regeneration circulating fan passes through the 2 nd electric heater to be led to the right end face of the regeneration zone, and the air outlet of the left end face of the regeneration zone passes through the cooling surface of the condenser and then returns to the air inlet of the regeneration circulating fan.
The dehumidifying air flow of the clothes dryer is open loop, which is beneficial to shortening the clothes drying time.
The technical scheme and typical design of the application will be further described in the specific embodiments.
Drawings
The following drawings are provided to illustrate specific embodiments of the application.
Fig. 1 is a schematic view of a conventional drum dryer.
Fig. 2 is a schematic front view of the structure of a drum dryer and a schematic sectional view of the drum dryer according to embodiment 1 of the present application.
Fig. 3 is a schematic view of the operation principle of the rotary wheel dehumidifying mechanism of the drum dryer according to embodiment 1 of the present application.
Fig. 4 is a schematic view of a control structure of a drum dryer according to embodiment 1 of the present application.
Fig. 5 is a schematic front view showing the construction of a drum dryer according to embodiment 2 of the present application and a schematic sectional view of the drum dryer.
Fig. 6 is a schematic view showing the operation principle of a drum dryer turning wheel dehumidifying mechanism according to embodiment 2 of the present application.
Fig. 7 is a schematic view of a control structure of a drum dryer according to embodiment 2 of the present application.
Detailed Description
The drum dryer of the embodiment of the application is improved based on the traditional basic structure of an in-line drum dryer disclosed in patent publication CN205821818U of the inventor. The conventional basic structure is as shown in fig. 1:
comprising a housing 12 of the machine body, the housing 12 of the machine body comprising a front cover 4 and a rear cover 5. The lower part of the rear cover 5 of the box body is provided with a shutter 51 for external ambient air to enter the inner cavity of the shell 12. The casing 12 is provided with an air inlet 13 of the machine body at a proper position on one side surface, such as below the front cover 4 of the box body. The air inlet 13 is arranged in the machine body towards the opening direction of the left end face of the cavity of the roller 3, and is provided with a barrier 1 and an electric heater 2 for blocking sundries in sequence. The air flow outlet of the electric heater 2 is communicated with the opening of the left end face of the cavity of the roller 3;
the drum 3 is rotatably supported on a supporting structure in the casing 12, the centrifugal impeller 7 is rotatably supported on the rotating shaft of the drum 3, the motor 9 is axially extended to rotate at a lower speed by the v-ribbed belt driving drum 3 tensioned by the pinch roller with the v-ribbed belt pulley 90, and the centrifugal impeller 7 is driven to rotate at a higher speed in the volute 8 by the belt pulley 91, a belt (not shown in the figure) and the belt pulley 31. The axial air inlet of the centrifugal impeller 7 is led to the opening of the right end face of the cavity of the roller 3, and the air outlet of the flow passage of the peripheral wall of the volute 8 is led to the machine body air outlet 6 which penetrates through a round hole of the rear cover 5 of the box body and is fixed. The air outlet 6 and the volute 8 may be integrally formed.
When the motor 9 drives the roller 3 and the centrifugal impeller 7 to rotate, under the negative pressure caused by the rotation of the centrifugal impeller 7, the air outside the machine sequentially passes through the air inlet 13, the barrier 1, the electric heater 2, the cavity of the roller 3, the centrifugal impeller 7 and the volute 8 and is discharged to the air outlet 6 of the machine body. The clean hot air flow filtered by the grating 1 and heated by the electric heater 2 sweeps the clothes 32 turned in the cavity of the rotary drum 3 to dry, and the generated damp and hot air is discharged out of the machine body through the machine body air outlet 6.
The drum dryer according to embodiment 1 of the present application is an improvement of the conventional basic structure shown in fig. 1, mainly in that the centrifugal impeller 7 and its volute 8, and the belt pulley 91, belt and belt pulley 31 for driving the centrifugal impeller are removed, and the space left for setting the rotary dehumidification mechanism is specifically:
a) As shown in fig. 2, between the cabinet back 5 of the dryer housing 12 and the bottom of the drum 3, the filter screen 102, the heating surface of the condenser 104, and the left and right end surfaces of the desiccant rotor 105 are arranged in this order from the rear opening of the drum 3 along the axial direction of the drum 3. Condenser 104 is a divided wall heat exchanger consisting of spaced heating and cooling surfaces;
b) As shown in fig. 3, the flow section of the desiccant rotor 105 in the axial direction of the drum 3 is divided into a large sector-shaped hygroscopic region and a small sector-shaped regeneration region, each having a flow passage:
the air inlet of the main fan 7 of the dehumidification runner 105 is attached to the right end face of the moisture absorption area of the dehumidification runner 105 along the axis direction of the roller, and the air outlet is communicated with the cavity of the roller 3;
the air outlet of the regeneration circulating fan 110 passes through the electric heater 109 to the left end face of the regeneration zone, and the air outlet of the right end face of the regeneration zone passes through the cooling surface of the condenser 104 and then returns to the air inlet of the regeneration circulating fan 110.
c) As shown in fig. 3, a temperature controller 106 is arranged in the air inlet channel of the main fan 7 and is used for detecting and controlling the temperature of the air flow of the clothes drying; a temperature controller 108 is arranged at an air flow inlet of the regeneration zone of the dehumidification rotating wheel and is used for detecting and controlling the temperature of regenerated air flow; a temperature and humidity sensor 103 is arranged at the upstream of the heating surface of the condenser 104 and is used for detecting and controlling the clothes drying condition; a water tank 114 for collecting condensed water generated from the condenser 104, a water level sensor 103 for detecting and controlling a water level of the water tank 114;
d) As shown in fig. 4, the dryer controller 112 with a single chip microcomputer as a core detects signals from the temperature controller 106, the temperature controller 108, the temperature and humidity sensor 103 and the water level sensor 103, and controls the operations of the motor 9, the wheel motor 111, the main fan 7, the regenerative cycle fan 110 and the electric heater 109 according to a set program.
According to the above structure, when the motor 9 drives the drum 3 to rotate, hot air flows sweep clothes turned in the inner cavity of the rotating drum 3 to dry, hot and humid air exhausted from the inner cavity of the drum 3 is sucked by negative pressure generated by the air inlet of the centrifugal impeller of the main fan 7 on the right end face of the moisture absorption area of the abutted moisture absorption rotating wheel 105, and sequentially passes through the filter screen 102, the heating surface of the condenser 104 and the left end face and the right end face of the moisture absorption area of the moisture absorption rotating wheel 105, so that the air dehumidified by the moisture absorption area of the moisture absorption rotating wheel 105 is heated by the heating surface of the condenser 104, exhausted from the air outlet of the main fan 7, and returned into the cavity of the drum 3 along the space or the channel between the casing 12 and the drum 3 and the slotting or the air outlet of the reversing wing of the column body of the drum 3. The air outlet of the regeneration circulation fan 110 sequentially passes through the electric heater 109, the left end face and the right end face of the regeneration zone of the dehumidifying rotor 105, and the cooling surface of the condenser 104, and then returns to the air inlet of the regeneration circulation fan 110.
The drum dryer according to embodiment 2 of the present application is an improvement of the conventional basic structure shown in fig. 1, and is also mainly characterized in that the centrifugal impeller 7 and its spiral case 8, and the belt pulley 91, belt and belt pulley 31 for driving the centrifugal impeller are removed, and the space left is used for setting a rotary dehumidification mechanism, specifically:
a) As shown in fig. 5, between the dryer cabinet back plate 5 and the bottom of the drum 3 in the axial direction of the drum 3, the filter screen 102, the cooling surface of the condenser 104, the PTC heater 116, the left and right end surfaces of the desiccant rotor 105, and the left end opening of the drum 3 are arranged in this order from the dryer housing 12 to the cabinet back plate 5;
b) As shown in fig. 5, the flow section of the desiccant rotor 105 in the axial direction of the drum 3 is divided into a large sector-shaped hygroscopic region and a small sector-shaped regeneration region, each having a flow passage:
the main fan 7 is arranged at the opening of the back plate 5 of the clothes dryer box body, the air inlet of the main fan is led to the opening near the front cover 4 at the right end of the roller 3 through an air duct, and the filter screen 117 is arranged;
the air outlet of the regeneration circulating fan 110 sequentially passes through the electric heater 109, the right end face and the left end face of the regeneration zone of the dehumidification runner 105, and the cooling surface of the condenser 104, and then returns to the air inlet of the regeneration circulating fan 110;
c) As shown in fig. 6, a temperature controller 106 is arranged in the air inlet channel of the main fan 7 and is used for detecting and controlling the temperature of the air flow of the clothes drying; a temperature controller 108 is arranged at an air flow inlet of the regeneration zone of the dehumidification rotating wheel and is used for detecting and controlling the temperature of regenerated air flow; a temperature and humidity sensor 103 is arranged at the upstream of the heating surface of the condenser 104 and is used for detecting and controlling the clothes drying condition; a water tank 114 for collecting condensed water generated from the condenser 104, a water level sensor 103 for detecting and controlling a water level of the water tank 114;
d) As shown in fig. 7, the dryer controller 112 with a single chip microcomputer as a core detects signals from the temperature controller 106, the temperature controller 108, the temperature and humidity sensor 103 and the water level sensor 103, and controls the operations of the motor 9, the wheel motor 111, the main fan 7, the regenerative cycle fan 110 and the electric heater 109 according to a set program.
According to the above structure, the negative pressure generated by the main fan 7 in the inner cavity of the drum 3 drives the ambient air to enter from the filter screen 102 arranged on the back plate 5, and sequentially flows through the cooling surface of the condenser 104, the PTC heater 116, the left end face and the right end face of the moisture absorption region of the desiccant rotor 105, and enters the inner cavity of the drum 3 through the left end opening of the drum 3. When the motor 9 drives the drum 3 to rotate, the drying hot air flow dehumidified by the moisture absorption area of the dehumidification rotating wheel 105 and heated by the PTC heater 116 sweeps the clothes turned in the inner cavity of the rotating drum 3 to dry the clothes, and the generated damp and hot air is sucked by the main fan 7 under negative pressure from the back plate 5 and then is discharged to the environment. The air outlet of the regeneration circulation fan 110 sequentially passes through the electric heater 109, the left end face and the right end face of the regeneration zone of the dehumidifying rotor 105, and the cooling surface of the condenser 104, and then returns to the air inlet of the regeneration circulation fan 110.
The embodiment of the application can be modified by the following design:
1. the dehumidifying rotating wheels and the rotary drum in the embodiment 1 and the embodiment 2 are arranged coaxially, and the dehumidifying rotating wheels and the rotary drum are the most compact overall structure of the clothes dryer and the most smooth structure for receiving the hot and humid air exhausted by the rotary drum. When the diameter of the dehumidifying rotating wheel is smaller than that of the roller, the dehumidifying rotating wheel and the roller can be arranged coaxially but not coaxially, namely, the axis is parallel, according to the arrangement requirement of an internal mechanism.
2. In embodiments 1 and 2, the drum 3 is rotatably supported by a support structure in the housing 12, and the v-ribbed belt transmission drum 3 stretched by a pinch roller with a v-ribbed belt wheel by the shaft of the motor 9 is rotated at a relatively low speed. It is also possible to make the dryer more compact by coaxially coupling the drive drum by means of a suitable motor (including a disk motor) shaft extension, see patent publication CN113969495a, etc.
3. In embodiment 2, a fan 7 fixed through a circular hole of the rear cover 5 of the box body can move in the circular hole along the axis for a proper distance, and the air discharge quantity of the miniature high-speed fan can be increased.
Claims (4)
1. A tumble dryer with an incorporated dehumidifying mechanism, comprising:
-a drum for holding the laundry to be dried;
-a mechanical system driving the rotation of the drum;
-a ventilation system, the fan of which drives air through the drum cavity;
-a dehumidifying mechanism for reducing the humidity of the air;
the method is characterized in that: the dehumidifying mechanism is a rotating wheel dehumidifying mechanism, and a dehumidifying rotating wheel of the mechanism is arranged between a back plate of a clothes dryer box body and the bottom of the roller along the axis direction of the roller and is close to the bottom of the roller.
2. The tumble dryer according to claim 1 wherein: the dehumidifying rotating wheel is arranged coaxially with the roller.
3. The tumble dryer according to claim 1 or claim 2, further characterized by:
a) A filter screen (102), a heating surface of a condenser (104) and left and right end surfaces of a dehumidifying rotating wheel (105) are sequentially arranged between a back plate (5) of a clothes dryer box body and the bottom of the drum (3) along the axial direction of the drum (3) from an opening behind the drum (3);
b) The flow section of the dehumidifying rotating wheel (105) along the axial direction of the roller (3) is divided into a large sector-shaped hygroscopic zone and a small sector-shaped regeneration zone, and each dehumidifying rotating wheel is provided with a flow passage:
the air inlet of the main fan (7) of the dehumidifying rotating wheel (105) is attached to the right end face of the moisture absorption area along the axis direction of the roller, and the air outlet is communicated with the cavity of the roller (3);
the air outlet of the regeneration circulating fan (110) passes through the electric heater (109) to be led to the left end face of the regeneration zone, and the air outlet of the right end face of the regeneration zone passes through the cooling surface of the condenser (104) and then returns to the air inlet of the regeneration circulating fan (110).
4. The tumble dryer according to claim 1 or claim 2, further characterized by:
a) The filter screen (102), the cooling surface of the condenser (104), the 1 st electric heater (116), the left end face and the right end face of the dehumidifying rotating wheel (105) and the left end opening of the drum (3) are sequentially arranged between the back plate (5) of the dryer box body and the bottom of the drum (3) along the axial direction of the drum (3) from the back plate (5) of the dryer box body;
b) The flow section of the dehumidifying rotating wheel (105) along the axial direction of the roller (3) is divided into a large sector-shaped hygroscopic zone and a small sector-shaped regeneration zone, and each dehumidifying rotating wheel is provided with a flow passage:
-a main fan (7) is arranged at the opening of the back plate (5) of the clothes dryer box body, and the air inlet of the main fan is communicated with the opening at the right end of the roller (3);
the air outlet of the regeneration circulating fan (110) passes through the 2 nd electric heater (109) to be led to the right end face of the regeneration zone, and the air outlet of the left end face of the regeneration zone passes through the cooling surface of the condenser (104) and then returns to the air inlet of the regeneration circulating fan (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310524604.5A CN116641215A (en) | 2023-05-09 | 2023-05-09 | Drum clothes dryer with built-in dehumidifying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310524604.5A CN116641215A (en) | 2023-05-09 | 2023-05-09 | Drum clothes dryer with built-in dehumidifying mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116641215A true CN116641215A (en) | 2023-08-25 |
Family
ID=87618012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310524604.5A Pending CN116641215A (en) | 2023-05-09 | 2023-05-09 | Drum clothes dryer with built-in dehumidifying mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116641215A (en) |
-
2023
- 2023-05-09 CN CN202310524604.5A patent/CN116641215A/en active Pending
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