WO2021213530A1 - Heat pump clothes dryer and control method for heat pump clothes dryer - Google Patents
Heat pump clothes dryer and control method for heat pump clothes dryer Download PDFInfo
- Publication number
- WO2021213530A1 WO2021213530A1 PCT/CN2021/090851 CN2021090851W WO2021213530A1 WO 2021213530 A1 WO2021213530 A1 WO 2021213530A1 CN 2021090851 W CN2021090851 W CN 2021090851W WO 2021213530 A1 WO2021213530 A1 WO 2021213530A1
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- WIPO (PCT)
- Prior art keywords
- air
- heat pump
- hot
- clothes dryer
- drum
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- 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
- D06F33/00—Control of operations performed in washing machines or washer-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
-
- 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
Definitions
- the invention relates to a clothes dryer technology, in particular to a heat pump clothes dryer and a control method of the heat pump clothes dryer.
- the heat pump dryer is a commonly used household appliance for drying clothes.
- the heat pump clothes dryer includes a drum, a fan, an air duct and a heat pump system; the drum is connected to the air duct, and the heat pump system includes a compressor, a condenser and an evaporator, at least the fan, the condenser and the evaporator are arranged in the air duct.
- the heat pump dryer When the heat pump dryer is working, the refrigerant undergoes a gas-liquid two-phase change in the heat pump system to absorb or release heat.
- the refrigerant condenses and releases heat at the condenser;
- the fan drives the air in the air duct to pass through the condenser, and the air absorbs
- the heat rises up and turns into dry and hot air, and the dry and hot air is sent into the drum, and takes away the moisture of the clothes to become hot and humid air, which makes the temperature of the clothes increase and the moisture decreases;
- the hot and humid air exits the drum and is sent to the evaporator for processing Cooling and dehumidification; the cooled and dehumidified air is then heated by the condenser, and the cycle is repeated to achieve drying of clothes.
- One aspect of the present invention is to provide a heat pump clothes dryer, which includes a drum, a heat pump system, a fan, and a ventilation component.
- the drum has an inlet for dry and hot air and an outlet for hot and humid air.
- the heat pump system includes an air duct, a condenser, and an evaporator;
- the air duct includes a first part, a second part and a third part; the hot and humid air outlet and the air inlet of the evaporator are communicated through the first part, and the air outlet of the evaporator is connected to the condenser
- the air inlet is communicated through the second part, and the air outlet of the condenser is communicated with the dry hot air inlet through the third part;
- the fan is used to drive air to flow in the air duct and the drum;
- the air assembly is arranged in the first part of the air duct, and has an openable and closable air inlet and an air outlet; the air inlet is used to introduce
- the technical effect of one aspect of the present invention is: by providing a ventilating assembly, the ventilating assembly introduces cold air from the air inlet into the first part of the air duct, or discharges some hot and humid air in the first part of the air duct to the outside of the air duct , To reduce the temperature of the hot and humid air that exchanges heat with the refrigerant in the evaporator pipe, thereby reducing the discharge temperature of the compressor, which is beneficial to avoid the reduction of drying efficiency caused by frequent start and stop of the compressor due to high load .
- Another aspect of the present invention is to provide a control method of a heat pump clothes dryer, which includes: starting the heat pump clothes dryer; according to the working temperature of the heat pump system, controlling the ventilation assembly to introduce cold air to the connecting evaporator and the drum
- the hot and humid air outlet is in a part of the air duct, or the ventilation assembly is controlled to discharge some hot and humid air in the air duct.
- the technical effect of another aspect of the present invention is that the heat pump clothes dryer controls the ventilation component to introduce cold air into the first part and/or discharge part of the humid and hot air in the first part according to the working temperature of the heat pump system, so as to reduce entering the evaporator
- the temperature of the hot and humid air reduces the discharge temperature of the compressor, which helps to avoid the frequent start and stop of the compressor during high-load work.
- Fig. 1 is a schematic diagram of the principle of a heat pump clothes dryer provided by the present invention
- Fig. 2 is a partial structural diagram 1 of the heat pump clothes dryer provided by the present invention.
- FIG. 3 is a schematic diagram of the structure of the heat pump system in Figure 2;
- Fig. 4 is a second schematic diagram of a part of the structure of the heat pump clothes dryer provided by the present invention.
- Fig. 5 is a schematic diagram of the structure of the rear side plate in Fig. 4;
- FIG. 6 is a third schematic diagram of a part of the structure of the heat pump clothes dryer provided by the present invention.
- Fig. 7 is a schematic diagram of the structure of the front support and ventilation assembly in Fig. 6;
- FIG. 8 is a schematic diagram of the structure of part A in FIG. 7;
- Fig. 9 is a partial enlarged view of the ventilation assembly in Fig. 1;
- FIG. 10 is a schematic diagram of a driving structure of a ventilation component in a heat pump clothes dryer provided by the present invention.
- FIG. 11 is a schematic diagram of another driving structure of a ventilation component in a heat pump clothes dryer provided by the present invention.
- FIG. 12 is a schematic diagram of another heat pump clothes dryer provided by the present invention.
- Fig. 13 is the first flow diagram of the control method of the heat pump clothes dryer provided by the present invention.
- FIG. 14 is a schematic diagram of the second flow of the heat pump clothes dryer control method provided by the present invention.
- FIG. 15 is the third flow diagram of the heat pump clothes dryer control method provided by the present invention.
- FIG. 16 is a fourth flowchart of the method for controlling the heat pump clothes dryer provided by the present invention.
- the heat pump dryer is a commonly used household appliance for drying clothes.
- the heat pump clothes dryer includes a box body, a drum rotatably arranged in the box body, and a drying and condensing system installed between the box body and the drum and used for drying the clothes in the drum.
- the drying and condensing system includes a fan, a heat pump system and an air duct.
- the heat pump system includes a compressor, a condenser, and an evaporator. Both the condenser and the evaporator include a gas flow channel for gas flow and a pipe for refrigerant flow. The gas flow channel and the pipe are arranged crosswise, so that heat exchange between the gas and the refrigerant can be realized.
- the air duct connects the drum, the fan, the condenser and the evaporator in series to form an air duct for the flow of hot air to dry the clothes.
- the fan is used to keep the hot air circulating between the air duct and the drum
- the evaporator is used to cool the hot and humid air entering the air duct from the drum to remove the moisture in the hot and humid air
- the condenser is used to remove the moisture in the evaporator.
- the cold and dry air heated by water vapor and cooling.
- the fan drives the air in the box to circulate between the air duct and the drum.
- the hot and humid air entering the air duct from the air outlet of the drum enters the evaporator from the air inlet of the evaporator and exchanges heat with the refrigerant in the evaporator pipe.
- the heat of the hot and humid air is exchanged with the refrigerant in the evaporator pipe to make
- the refrigerant heats up and vaporizes, the water vapor in the hot and humid air condenses into condensed water due to the decrease in temperature and is separated from the air under the action of gravity.
- the gas port enters the condenser.
- the refrigerant that has been heated and vaporized in the evaporator becomes a high-temperature and high-pressure gas under the action of the compressor, and then flows into the pipe of the condenser, and exchanges heat with the dry and cold air entering the condenser from the inlet of the condenser.
- the dry and cold air becomes hot and dry air and is discharged from the air outlet of the condenser, and then flows into the drum from the air inlet of the drum to dry the clothes in the drum.
- the hot dry air vaporizes the water in the wet clothes, it turns into hot and humid air, and then enters the air duct from the air outlet of the drum again to start the next cycle.
- the refrigerant that loses heat in the condenser pipe flows back into the evaporator pipe to start the next cycle. In this way, the clothes can be dried finally.
- the present invention can consider installing a cooling component on the air duct between the hot and humid air outlet of the drum and the evaporator to reduce the temperature of the airflow to the evaporator and the condenser, so that the temperature is in line with the work of the evaporator and the condenser.
- the compressor can be in a high-efficiency working state to avoid compressor shutdown.
- FIG. 1 is a schematic diagram of the principle of a heat pump clothes dryer provided by the present invention
- Fig. 2 is a partial structural diagram 1 of the heat pump clothes dryer provided by the present invention
- Fig. 3 is a schematic structural diagram of the heat pump system in Fig. 2
- Fig. 4 is a schematic diagram of the heat pump system in Fig. 2
- FIG. 5 is a structural diagram of the rear side plate in FIG. 4.
- the heat pump clothes dryer includes a box body 1, a drum 2 rotatably arranged in the box body 1, and a drum 2 arranged between the box body 1 and the drum 2 and used for aligning the inside of the drum 2.
- the fan 3 and the heat pump system 4 are used to dry the clothes, and the cabinet 1 protects the drum 2, the fan 3 and the heat pump system 4.
- the bottom of the drum 2 is provided with a hot and dry air inlet (that is, the air inlet of the drum 2, which is located at the right end of the drum 2 in FIG. 1), and the opening of the drum 2 is provided with a hot and humid air outlet 21 (that is, the air outlet of the drum 2, Located at the left end of the drum 2 in Figure 1).
- the heat pump system 4 includes an air duct, a condenser 42, an evaporator 43, and a compressor 41. Both the condenser 42 and the evaporator 43 include a gas flow channel for gas flow and a pipe for refrigerant flow, and the gas flow channel and the pipe are arranged in an intersecting manner, so that heat exchange between the gas and the refrigerant can be realized.
- the air duct includes a first part A2, a second part A3, a third part A4, and a fourth part that are connected in sequence.
- the hot and humid air outlet 21 and the air inlet of the evaporator 43 are connected through the first part A2, and the air outlet of the evaporator 43 is connected to the condenser
- the air inlet of the condenser 42 is connected through the second part A3, the air outlet of the condenser 42 and the hot dry air inlet are communicated through the third part A4, and the fourth part is formed in the drum 2.
- the fan 3 is arranged in the first part A2, the compressor 41 is arranged independently of the air duct, the compressor 41 is located between the air outlet of the evaporator 43 and the air inlet of the condenser 42, the evaporator 43, the compressor 41 It is connected to the condenser 42 in sequence and constitutes a heat pump circuit A1 for circulating the refrigerant.
- the evaporator 43 is used to cool the hot and humid air in the first part A2 to remove the water vapor in the hot and humid air
- the condenser 42 is used to heat the dry and cold air after the water vapor is removed and the temperature is reduced in the evaporator 43
- the compressor 41 is used to Compressed refrigerant is a power supply unit that circulates the refrigerant along the heat pump circuit A1.
- the fan 3 is connected to the air duct, and the fan 3 is used to drive air to flow between the air duct and the drum 2.
- the fan 3 may include a motor and a fan blade, and the motor is in a transmission connection with the fan blade, and the motor drives the fan blade to rotate to keep air flowing between the air duct and the drum 2.
- the fourth part can be formed by the rear side plate 11 of the box body 1 and the air duct cover plate.
- the air duct cover plate is arranged on the side of the rear side plate 11 of the box body 1 facing away from the drum 2.
- An air inlet 110 is provided at a position corresponding to the dry and hot air inlet, and the air inlet 110 may be arranged along the circumference of the drum 2.
- the drum 2 rotates in the cabinet 1, and the laundry in the drum 2 flips up and down with the rotation of the drum 2; the fan 3 drives the air in the cabinet 1 in the air duct and the drum 2 flows within.
- the hot and humid air entering the first part A2 from the hot and humid air outlet 21 enters the evaporator 43 from the air inlet of the evaporator 43, and exchanges heat with the refrigerant in the pipe of the evaporator 43, and the refrigerant in the pipe of the evaporator 43 absorbs damp heat The heat of the air heats up and vaporizes.
- the water vapor in the hot and humid air condenses into condensed water due to the decrease in temperature and is separated from the air under the action of gravity.
- the hot and humid air loses a large amount of water vapor and becomes dry and cold air.
- the air outlet is discharged, and then the dry and cold air flows along the second part A3 to the air inlet of the condenser 42 and enters the condenser 42 from the air inlet of the condenser 42.
- the refrigerant heated and vaporized in the evaporator 43 becomes a high-temperature and high-pressure gas under the action of the compressor 41, and then flows into the pipe of the condenser 42 and interacts with the dry and cold air entering the condenser 42 from the inlet of the condenser 42
- the dry and cold air absorbs a large amount of heat from the high-temperature and high-pressure gas phase refrigerant and becomes hot dry air.
- the hot dry air flows from the outlet of the condenser 42 into the third part A4 of the air duct, and then flows into the drum 2 through the hot dry air inlet. In order to dry the laundry in the drum 2.
- the hot dry air will become hot and humid air after vaporizing the water in the wet clothes, and then enter the first part A2 from the hot and humid air outlet 21 again to start the next cycle.
- the refrigerant that loses heat in the tube of the condenser 42 flows back into the tube of the evaporator 43 to start the next cycle. In this way, the clothes can be dried finally.
- a water receiving pan may also be provided under the evaporator 43.
- the hot and humid air in the airflow can be cooled and condensed to precipitate condensed water to achieve the purpose of dehumidification.
- the heat pump system 4 can be arranged at any position on the outer circumference of the drum 2. Considering the heavy weight of the heat pump system 4, the heat pump system 4 can be arranged at the bottom of the drum 2 to prevent the heat pump system 4 from falling due to weak support.
- the evaporator 43, the condenser 42, and the fan 3 can be arranged at intervals along the axis of the drum 2 to avoid the increase in the total length of the air duct caused by the staggered arrangement of the evaporator 43, the condenser 42, and the fan 3 along the radial direction of the drum 2. Thereby, the wind resistance can be reduced, and the heat loss of the hot air can be reduced.
- Fig. 6 is a partial structural diagram 3 of the heat pump clothes dryer provided by the present invention
- Fig. 7 is a structural diagram of the front support and ventilation assembly in Fig. 6
- Fig. 8 is a structural diagram of part A in Fig. 7.
- the first part A2 may be formed on the front support 7 of the heat pump dryer.
- the front support 7 also has a support part for supporting the hot and humid air outlet 21 of the drum 2.
- the first part A2 has a first through hole 71 communicating with the hot and humid wind outlet 21 of the drum 2 and a second through hole 72 communicating with the air inlet of the evaporator 43. Thereby, the hot and humid air discharged from the hot and humid air outlet 21 easily enters the first portion A2.
- the front support 7 may be provided with multiple support parts for supporting the hot and humid air outlet 21 of the drum 2, and the multiple support parts may be located on the same side or both sides of the first through hole 71.
- a plurality of supporting parts may be symmetrically arranged on both sides of the first through hole 71, which is located on the lower side of the hot and humid air outlet 21 of the drum 2, namely In other words, taking the vertical plane passing through the axis of the drum 2 as the first plane, the first through hole 71 may intersect the first plane or the first through hole 71 may be symmetrically arranged with respect to the first plane.
- Fig. 9 is a partial enlarged view of the ventilation assembly in Fig. 1.
- the heat pump dryer also includes a ventilating assembly 5, the ventilating assembly 5 is arranged on the first part A2 of the air duct, that is, the ventilating assembly 5 is arranged on the drum 2
- the hot and humid air outlet 21 and the air inlet of the evaporator 43 are used to reduce the temperature of the hot and humid air in the first part A2.
- the ventilating assembly 5 is provided to reduce the temperature of the hot and humid air in the first part A2, thereby reducing the discharge temperature of the compressor 41, so as to prevent the compressor 41 from frequently starting and stopping due to high load.
- the ventilating assembly 5 may have an openable and closable air inlet 52, which is used to introduce cold air outside the air duct into the first part A2 of the air duct, so as to reduce the temperature of the hot and humid air in the first part A2.
- the air inlet 52 is used to introduce cold air into the first part A2, and the cold air enters the first part A2 and mixes with the hot and humid air to reduce the temperature of the hot and humid air that exchanges heat with the refrigerant in the pipe of the evaporator 43, thereby Reducing the discharge temperature of the compressor 41 avoids frequent start and stop of the compressor 41 due to high load, thereby helping to avoid a reduction in the drying efficiency of the heat pump clothes dryer.
- cold air should be understood in a broad sense, that is, cold air can be understood as the air outside the box 1, the air between the box 1 and the drum 2, or the low-temperature air discharged through heat exchange equipment, as long as its temperature is low.
- the temperature of the hot and humid air discharged from the hot and humid air outlet 21 of the drum 2 is sufficient.
- the cold air in the first part A2 after being cooled and dehumidified by the evaporator 43 can be re-introduced into the first part A2 from the air inlet 52.
- the air inlet 52 may be provided at an end of the first part A2 close to the air inlet of the evaporator 43, that is, the air inlet 52 is provided close to the air inlet of the evaporator 43.
- the fan 3 is arranged on the first part A2, wherein the first part is located on the side of the fan 3 where the wind pressure is negative, and the first part is located on the side of the fan 3 where the wind pressure is positive.
- the first part A2 The side closer to the evaporator 43 increases the negative pressure.
- the ventilating assembly 5 may have an openable and closable air outlet 55, and the air outlet 55 discharges part of the hot and humid air in the first part A2 out of the first part A2 to reduce the temperature of the hot and humid air in the first part A2.
- the air outlet 55 is used to lead the hot and humid air in the first part A2 to the outside of the first part A2, reducing the amount of hot and humid air entering the air inlet of the evaporator 43, thereby reducing the discharge temperature of the compressor 41, thereby The compressor 41 is prevented from shutting down, and the drying efficiency is prevented from being affected.
- the air outlet 55 may be arranged at an end of the first part A2 close to the hot and humid air outlet 21 of the drum 2, that is, the air outlet 55 is arranged away from the air inlet of the evaporator 43. Since the positive pressure on the side of the first part A2 closer to the drum 2 is greater, the air outlet 55 is arranged at one end close to the hot and humid air outlet 21 of the drum 2, so that part of the hot and humid air in the first part A2 can be discharged easily, and the heat dissipation effect is good.
- the ventilation assembly 5 may have at least one of the air inlet 52 and the air outlet 55.
- the air venting assembly 5 is provided with an air inlet 52 and/or an air outlet 55.
- the ventilating assembly 5 when the ventilating assembly 5 is provided with only the air inlet 52, the cold air enters the first part A2 through the air inlet 52, and the air volume in the first part A2 increases. Because the first part A2 of the heat pump clothes dryer is not tightly sealed, some The hot and humid air can leak out through the assembly gap of the first part A2, and part of the hot and humid air can also be discharged out through the air inlet 52. At this time, the air inlet 52 performs the functions of air intake and exhaust at the same time.
- the air inlet 52 and the air outlet 55 may be spaced apart along the length of the air duct. Distance setting. Therefore, there is a certain distance between the air inlet 52 and the air outlet 55 to prevent a part of the hot and humid air discharged through the air outlet 55 from flowing back from the air inlet 52 to the first part A2 of the air duct.
- the area of the air outlet 55 may be larger than the area of the air inlet 52.
- the hot air flows through a long route and has a lot of loss, and the air inlet 52 is close to the blower 3, that is, the intake flow of cold air will be greater than that of hot air.
- the air inlet volume of the cold air can be automatically balanced with the air outlet volume of the hot air, avoiding excessive introduction of cold air, and the heat pump system cannot heat the cold air in time, resulting in dryness. The clothing efficiency is reduced.
- the ventilation assembly 5 may include a body 51 installed on the first part A2 of the air duct, and the air inlet 52 is provided on the body 51. Therefore, by adjusting the installation position of the main body 51 on the first part A2 of the air duct, the cold air introduced from the air inlet 52 can be guided to a suitable position of the first part A2.
- the body 51 includes a mounting plate 511 mounted on the first part A2, and the air inlet 52 is provided on the mounting plate 511.
- the setting position of the air outlet 55 includes but is not limited to the following possible implementations:
- the air outlet 55 may also be provided on the body 51.
- the air outlet 55 is also provided on the mounting plate 511. Therefore, by adjusting the installation position of the main body 51 on the first part A2 of the air duct, the hot and humid air discharged from the air outlet 55 can be drawn to a suitable position.
- the main body 51 may be arranged close to the front side wall of the box body 1 so as to guide the hot and humid air from the front side wall of the box body 1.
- the air inlet 52 and the air outlet 55 can be integrally formed on the main body 51, that is, the air inlet 52 and the air outlet 55 can be formed on the main body 51 at the same time, which avoids the use of the heat pump dryer in the cabinet 1 An opening is added on the top to simplify the processing process.
- the body 51 also includes a first wall plate 512 arranged on the mounting plate 511 toward the inner side of the first part A2, the first wall plate 512 is used to receive the hot and humid air discharged from the hot and humid air outlet 21 of the drum 2;
- the air outlet 52 and the air outlet 55 are arranged side by side on the mounting plate 511, and the air outlet 55 is located on the side of the air inlet 52 close to the first wall plate 512.
- the first wall plate 512 can be arranged along the radial direction of the first part, the air outlet 55 is arranged on the side of the first wall plate 512 facing the hot air, and the air inlet 52 is arranged on the air outlet 55 away from the first wall plate 512. On the side.
- the hot and humid air discharged from the hot and humid air outlet 21 of the drum 2 can impact the first wall plate 512, and part of the hot and humid air impacting the first wall plate 512 can flow along the first wall plate 512 to the air outlet 55 and be discharged.
- the first wall plate 512 guides part of the hot and humid air to the air outlet 55, which acts as a wind guide.
- the air inlet 52 located on the side of the air outlet 55 is subjected to the negative pressure of the fan 3 to introduce cold air into the first part A2.
- the air outlet 55 may be formed on the front support 7 of the heat pump clothes dryer. Therefore, since the first part A2 is formed on the front support 7, the air outlet 55 formed on the front support 7 directly communicates with the hot and humid air outlet 21, so the position of the air outlet 55 can be unaffected by wind pressure, and the air outlet effect is good .
- the position of the air outlet 55 on the front support 7 is not limited. For example, it may be located on the front support 7 on the rear side wall of the drum 2, the front support 7 on the front side wall facing away from the drum 2, or on the front side wall of the drum 2. The connecting side wall between the rear side wall and the front side wall.
- the first part A2 may be integrally arranged.
- the first part A2 may be arc-shaped, and the arc-shaped first part A2 can conduct wind smoothly.
- the first section A2 can also be arranged in sections.
- the first section A2 specifically includes a first section A21 and a second section A22.
- the first section A21 is perpendicular to the drum
- the second section A22 extends in the direction parallel to the axis of the drum 2.
- the first section A21 and the second section A22 are both attached to the inner wall of the box body 1.
- the air outlet 55 may be formed at the first section A21, the second section A22, or the intersection of the first section A21 and the second section A22.
- the first wall plate 512 can be arranged in a radial direction perpendicular to the wall surface of the first section A2, as long as the first wall plate 512 does not block the first section A2. Can.
- the first wall plate 512 can be set at different positions according to the extension direction of the first section A21.
- the body 51 may Including a first wall plate 512, a second wall plate 513 and a third wall plate connecting the first wall plate 512 and the second wall plate 513, the first wall plate 512, the second wall plate 513 and the third wall plate are all mounted On the inner wall of the first part A2.
- the first wall plate 512, the second wall plate 513, and the third wall plate enclose a cavity 514 with an opening facing the hot and humid air outlet 21 of the drum 2.
- the air inlet is connected, and the other end of the cavity 514 along the axis of the drum 2 is provided with a mounting plate 511.
- the air inlet 52 may be arranged above the air outlet 55 or the air inlet 52 and the air outlet 55 may be arranged side by side in the horizontal direction.
- the first through hole 71 is located in the middle of the front support 7, and the evaporator 43 may be located on one side of the first plane, and the first section A21 may be The heat pump dryer extends in an oblique shape at the side. At this time, hot air can hit the first wall 512, and the air inlet 52 and the air outlet 55 can be provided on the first wall 512 or the mounting plate 511.
- a mounting part is also connected to the front support 7. At this time, the body 51 can seal the mounting part.
- the installation part may be a through-hole structure opened on the first part A2, as long as the first cover 53 can be firmly installed.
- the ventilation assembly 5 may also include a first cover 53, a second cover 56 and a driver 54.
- the first cover 53 is provided at the air inlet 52, and the second cover 56 covers Located at the air outlet 55, the driver 54 is used to controllably drive the first cover 53 to open and close the air inlet 52, and to controllably drive the second cover 56 to move to open and close the air outlet 55. Therefore, the air inlet 52 and the air outlet 55 can be opened and closed in a controllable manner, so that the heat pump clothes dryer is suitable for various scenarios.
- the driver 54 drives the first cover plate 53 to close the air inlet 52 and drives the second cover plate 56 to close the air outlet 55, so as to prevent the hot and humid air entering the air inlet of the evaporator 43 from cooling down, and then avoid The drying efficiency is reduced; in the later stage of drying, the driver 54 drives the first cover 53 to open the air inlet 52 and the second cover 56 to open the air outlet 55 to reduce the discharge temperature of the compressor 41, thereby avoiding the compressor 41 Frequent start and stop due to high load.
- the area of the first cover plate 53 is larger than the area of the air inlet hole 52, and the first cover plate 53 is attached to the wall surface around the air inlet hole 52 on the mounting plate 511 to optimize the sealing effect.
- the surface of the first cover plate 53 facing the main body 51 may also be provided with a first sealing member for sealing the air inlet 52.
- the first sealing member can be pressed between the first cover 53 and the body 51, which improves the sealing performance of the air inlet 52, so that when the air inlet 52 is closed, the hot and humid air from the first cover 53 can be reduced.
- the gap with the mounting plate 511 may flow out.
- the area of the second cover plate 56 may also be larger than the area of the air outlet 55, and the second cover plate 56 is attached to the wall surface around the air outlet 55 on the mounting plate 511 to optimize the sealing effect.
- the surface of the second cover plate 56 facing the main body 51 is also provided with a second sealing member, and the second sealing member is used to seal the air outlet 55.
- the second sealing member can be compressed between the second cover 56 and the main body 51, which improves the sealing performance of the air outlet 55, so that when the air outlet 55 is closed, the hot and humid air is reduced from the second cover 56 and the installation.
- the gap between the plates 511 may flow out.
- first sealing element and the second sealing element may be rubber rings well known to those skilled in the art.
- the first cover 53 may be installed on the outer wall surface of the first part A2, in order to prevent the first cover 53 from protruding from the cabinet 1 of the heat pump clothes dryer when the first cover 53 is opened.
- the movement form of the first cover plate 53 can be translation or rotation.
- the driver 54 can be a motor, an air cylinder, an oil cylinder, or the like.
- one side of the first cover plate 53 has a first rotating shaft 531 rotatably connected to the body 51, the driver 54 is a motor, and the motor shaft is drivingly connected to the first rotating shaft 531, and the motor drives the first cover plate 53 around the first rotating shaft. 531 rotates to open or close the air inlet 52.
- the driver 54 is used to drive the first cover 53 to rotate toward the inside of the first part A2. Since the gap between the outer wall surface of the first part A2 and the box 1 of the heat pump clothes dryer is small, this arrangement can avoid interference with the box 1 during the rotation of the first cover 53 and the air inlet 52 cannot be completed. Turn on.
- the driver 54 can be arranged outside the first part A2, so that the driver 54 can avoid occupying a part of the first part A2 and causing the wind resistance to increase.
- the second cover 56 may also be installed on the outer wall surface of the first part A2, in order to prevent the second cover 56 from protruding from the cabinet 1 of the heat pump clothes dryer when the second cover 56 is opened.
- the second cover 56 is similar to the first cover 53, and the movement form of the second cover 56 can also be translation or rotation.
- one side of the second cover 56 has a second rotating shaft 561 rotatably connected to the body 51, and the driver 54 is connected to the second rotating shaft 561 for driving the second cover 56 to rotate around the second rotating shaft 561 to open or Close the vent 55.
- the driver 54 can also drive the second cover 56 to rotate toward the inside of the first part A2, so as to prevent the second cover 56 from interfering with the box body 1 during the rotation of the second cover 56 to prevent the air outlet 55 from being completely opened.
- two independent drivers 54 can be provided to drive the first cover plate 53 and the second cover plate 56 to move respectively. Therefore, by separately controlling the two independent drivers 54, the first cover 53 and the second cover 56 can be driven to move separately, so that the air inlet 52 and the air outlet 55 can be opened and closed in various situations.
- the opening and closing situations of the air inlet 52 and the air outlet 55 are divided into the following types: the air inlet 52 is opened, the air outlet 55 is closed, the air inlet 52 and the air outlet 55 are opened at the same time, and the air inlet 52 is closed, The air outlet 55 is opened, and the air inlet 52 and the air outlet 55 are closed at the same time.
- the first cover plate 53 and the second cover plate 56 can also be linked and controlled by the same driver 54. Therefore, when the number of the drivers 54 is one, the air inlet 52 and the air outlet 55 can be opened or closed at the same time, so that there is no need to control the two drivers 54 separately, and the operation is simple and convenient.
- the ventilation assembly 5 may further include a connection between the first cover plate 53 and the second cover plate.
- the driver 54 is connected to any one of the linkage assembly, the first rotating shaft 531 and the second rotating shaft 561.
- Fig. 10 is a schematic diagram of a driving structure of a ventilation component in a heat pump clothes dryer provided by the present invention.
- the first rotating shaft 531 is located at one end of the first cover plate 53
- the second rotating shaft 561 is also located at one end of the second cover plate 56
- the first cover plate 53 And the second cover 56 can rotate in the same direction.
- the connecting rod assembly may include a connecting rod connecting the first rotating shaft 531 and the second rotating shaft 561.
- the connecting rod is connected to the end surfaces of the first rotating shaft 531 and the second rotating shaft 561, and the connecting rod is not connected to the first rotating shaft 531. Intersect the axis of the second rotating shaft 561.
- the first rotating shaft 531, the second rotating shaft 561, the connecting rod, and the first part A2 may constitute a parallelogram linkage mechanism.
- the first cover plate 53 and the second cover plate 56 can be rotated at the same time.
- Fig. 11 is a schematic diagram of another driving structure of a ventilation assembly in a heat pump clothes dryer provided by the present invention.
- the first rotating shaft 531 when the first rotating shaft 531 is located on the side of the air inlet 52 away from the air outlet 55, the second rotating shaft 561 is located on the side of the air outlet 55 away from the air inlet 52.
- the first cover plate 53 and the second cover plate 56 can rotate in opposite directions.
- the connecting rod assembly may include a third rotating shaft 57 connected to the body 51, and a first connecting rod 58 and a second connecting rod 59 connected to the end surface of the third rotating shaft 57, and the third rotating shaft 57 is located in the air inlet 52.
- the end of the first connecting rod 58 away from the third rotating shaft 57 is connected to the end surface of the first rotating shaft 531, and the end of the second connecting rod 59 away from the third rotating shaft 57 is connected to the end surface of the second rotating shaft 561; the driver 54 is in transmission connection with the third rotating shaft 57 to drive the third rotating shaft 57 to rotate, thereby driving the first connecting rod 58 and the second connecting rod 59 to move, thereby simultaneously pushing the first rotating shaft 531 and the second rotating shaft 561 to rotate to simultaneously open the The air hole 52 and the air outlet 55.
- the third rotating shaft 57 is located between the first rotating shaft 531 and the second rotating shaft 561, and the third rotating shaft 57 may not be located in the same plane as the first rotating shaft 531 and the second rotating shaft 561.
- the third rotating shaft 57 and the first rotating shaft 531 and the second rotating shaft 561 are located in the same plane. Therefore, it is easy to process and manufacture, and at the same time, the internal space of the heat pump clothes dryer is saved, so as to free up more installation space for other components.
- the first connecting rod 58 connects the first rotating shaft 531 and the third rotating shaft 57
- the second connecting rod 59 connects the second rotating shaft 561 and the third rotating shaft 57.
- the first link 58, the first shaft 531, the third shaft 57 and the first part A2 constitute a first four-bar linkage mechanism.
- the second rotating shaft 561, the third rotating shaft 57 and the first part A2 constitute a second four-bar linkage mechanism, one of the first four-bar linkage mechanism and the second four-bar linkage mechanism is a regular parallelogram linkage structure, and the other is a reverse
- the parallelogram connecting rod structure realizes the rotation of the first cover plate 53 and the second cover plate 56 in opposite directions.
- the material of the first rotating shaft 531, the second rotating shaft 561, and the third rotating shaft 57 may be POM, nylon, etc., which can be self-lubricating and wear-resistant.
- the body 51 may also be provided with a first filter 9 for filtering impurities in the hot and humid air.
- the first filter 9 is installed at the end of the body 51 facing the hot and humid air outlet 21 of the drum 2, from After the hot and humid air discharged from the hot and humid air outlet 21 is filtered by the first filter 9, a part of the filtered hot and humid air exits the first part A2 through the air outlet 55, and the other part of the filtered hot and humid air enters the evaporator 43.
- the hot and dry air vaporizes the water in the wet clothes in the drum 2 into hot and humid air.
- the hot and humid air lifts up some of the lint on the clothes and enters the first part A2.
- the first filter 9 is provided to avoid the hair. Foreign matter such as flocs enters the evaporator 43 and causes the gas flow channel and pipe of the evaporator 43 to be blocked.
- the first filter 9 may be a filter mesh, or a lint filter well known to those skilled in the art.
- the main body 51 is detachably mounted on the first part A2 of the air duct. Therefore, it is convenient to disassemble the main body 51 from the air duct, thereby facilitating maintenance and replacement of the main body 51.
- the first filter 9 can be detached from the main body 51 to facilitate cleaning of the impurities filtered off on the first filter 9 to ensure the effective operation of the first filter 9.
- the main body 51 can be connected to the air duct by means of snap connection or screw connection.
- the heat pump clothes dryer may further include a second filter, and the second filter may be arranged on the first through hole 71 or the first section A21 to prevent the sundries in the humid and hot air from passing through the first through hole 71 or the first section A21. Section A21 flows out.
- the second filter is similar to the first filter 9, and can also be a filter screen or a lint filter.
- the driver can be set in the gap between the front support 7 and the bottom side plate of the box 1.
- the output shaft of the driver Passing through the side wall of the first part in the vertical direction and extending into the first part, the third rotating shaft 57 is detachably connected with the output shaft, which is convenient to take the main body 51 and the first filter 9 and the second filter installed on the main body 51 Device.
- the heat pump dryer also includes a control device, which is connected to the ventilation assembly 5, and the control device is used to control the ventilation assembly 5 to open and close the air inlet 52 And/or open and close the vent 55.
- the control device may be an ICU (Inner Control Unit), a PLC (Programmable Logic Controller, programmable detection controller), or a single-chip microcomputer.
- the control device is electrically connected to the driver 54, and the control device controls the driver 54 to realize the opening and closing of the air inlet 52 and/or the air outlet 55.
- the control device When the first cover 53 and the second cover 56 are respectively controlled by two independent drivers 54, the control device respectively controls the two drivers 54 to drive the first cover 53 to move to open and close the air inlet 52, and to drive the first cover 53 The two cover plates 56 move to open and close the air outlet 55.
- the control device controls the one driver 54 to drive the first cover plate 53 and the second cover plate 56 to move to open or close the air intake at the same time Hole 52 and vent 55.
- the heat pump clothes dryer may include a timer.
- the timer is used to time the rotation time of the drum 2, and the control device is used to control the ventilation assembly 5 when the rotation time of the drum 2 calculated by the timer reaches a set time.
- the cold air outside the air duct is introduced into the first part A2, and the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2. Therefore, when the working time of the heat pump dryer reaches the set time and enters the late drying stage, the ventilation assembly 5 is controlled to reduce the temperature of the hot and humid air in the first part A2, so as to reduce the discharge temperature of the compressor 41.
- the setting time can be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer. For example, after the drum 2 has rotated for 30 minutes, the heat pump dryer enters the late drying stage, that is, the humidity of the clothes has been greatly reduced, and the temperature of the hot and humid air discharged from the hot and humid air outlet 21 has increased significantly, the set time can be set to 30 minutes .
- the heat pump clothes dryer may further include a temperature detection device electrically connected to the control device.
- the temperature detection device is used to detect the working temperature of the heat pump system 4, and the control device is used to detect when the temperature detected by the temperature detection device is greater than the preset temperature.
- the ventilation component 5 is controlled to introduce the cold air outside the air duct into the first part A2, and the ventilation component 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2. Therefore, when the working temperature of the heat pump system 4 is higher than the preset temperature, the temperature of the moist and hot air in the first part A2 is reduced by controlling the ventilating assembly 5, thereby reducing the discharge temperature of the compressor 41 and avoiding the compressor 41 Frequent start and stop results in low drying efficiency.
- this configuration can more accurately control the ventilating assembly 5 to reduce the temperature of the hot and humid air in the first part A2 when the high working temperature of the heat pump system 4 causes the compressor 41 to work at a high load.
- the temperature detection device may be a temperature sensor or an infrared thermocouple meter.
- the temperature detection device can be used to detect the temperature of the air duct. Therefore, by knowing the temperature of the air in the air duct, the working condition of the compressor 41 can be roughly judged.
- the compressor 41 may be in a high load state, which is reduced by the ventilation assembly 5. The temperature of the air in the air duct prevents the compressor 41 from shutting down.
- the temperature detection device may include a first temperature detection device, the first temperature detection device is used to detect the temperature of the air inlet of the evaporator 43, and the control device is used when the temperature detected by the first temperature detection device is greater than the first preset temperature ,
- the control ventilation assembly 5 introduces the cold air outside the air duct into the first part A2, and discharges some hot and humid air in the first part A2 of the air duct out of the first part A2.
- the first temperature detection device can be used to automatically monitor the temperature of the hot and humid air entering the evaporator 43, so that an increase in the discharge temperature of the compressor 41 can be detected early, and countermeasures can be taken to prevent the compressor 41 from shutting down.
- this embodiment does not limit the first preset temperature, and can be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer.
- the first preset temperature is between 70°C and 80°C.
- the temperature detection device may also include a second temperature detection device, the second temperature detection device is used to detect the temperature of the air outlet of the condenser 42, and the control device is used to detect when the temperature detected by the second temperature detection device is greater than the second preset temperature.
- the ventilating assembly 5 is controlled to introduce the cold air outside the air duct into the first part A2, and to discharge some hot and humid air in the first part A2 of the air duct out of the first part A2. Therefore, the second temperature detection device can be used to automatically monitor the temperature of the hot dry air discharged from the air outlet of the condenser 42.
- the second preset temperature is greater than the first preset temperature, and the second preset temperature can also be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer.
- the second preset temperature is between 90°C and 100°C.
- the temperature detection device may also include a third temperature detection device.
- the third temperature detection device is used to detect the temperature of the air outlet of the compressor 41, and the control device is used to detect when the temperature detected by the third temperature detection device is greater than
- the ventilating assembly 5 is controlled to introduce the cold air outside the air duct into the first part A2, and to discharge some hot and humid air in the first part A2 of the air duct out of the first part A2.
- the third temperature detection device can be used to automatically monitor the discharge temperature of the compressor 41, so that an increase in the discharge temperature of the compressor 41 can be detected early, and countermeasures can be taken to prevent the compressor 41 from shutting down.
- this embodiment does not limit the third preset temperature, which can be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer.
- the third preset temperature is between 60°C and 70°C.
- the temperature detection device can also be arranged in other positions of the first part A2 to detect the temperature of the hot and humid air in the first part A2.
- the temperature detecting device may be provided on the front support 7 on the rear side wall of the drum 2 and on the connecting side wall of the drum 2 for connecting the front side wall and the rear side wall.
- the heat pump clothes dryer further includes a first driving motor 6 arranged in the cabinet 1, and the first driving motor 6 is connected to the drum 2 through a transmission device to drive the drum 2 to rotate.
- the transmission device can be a chain drive, a belt drive or a worm gear drive.
- the transmission device includes a pulley and a belt. The pulley is in transmission connection with the first driving motor 6.
- the belt is wound around the pulley and the drum 2 so as to transmit the power of the first driving motor 6 to the drum 2.
- the first driving motor 6 can also be connected to the drum 2 through a clutch to drive the drum 2 to rotate.
- the first drive motor 6 may be electrically connected to a control device, and the control device controls the rotation of the drum 2 through the first drive motor 6. Further, the control device can be used to control the periodic forward and reverse rotation of the drum 2 and stop the rotation for a preset time when the drum 2 is switched between the forward rotation and the reverse rotation. Therefore, in the process of drying the clothes, the drum 2 can be rotated forward and then reversed, so as to shake the clothes to be dried, so as to prevent the clothes to be dried from being knotted; moreover, stopping the rotation means that the drum 2 is switched from the forward rotation state.
- a buffer is provided for the reverse state to overcome the motion inertia.
- the drum 2 forward rotation time, stop rotation time and reverse rotation time can be freely set by the technicians according to actual needs.
- the forward rotation time and the reverse rotation time are both between 1 and 3 minutes, and the stop time is 3s. Between ⁇ 5s.
- the first driving motor 6 can be a three-phase asynchronous motor to drive the drum 2 for forward rotation and reverse rotation. Therefore, compared with setting two motors to drive the drum 2 to rotate forward and reverse, it is possible to avoid the motor occupying too much space in the box 1, so as to free up more installation space for other components of the heat pump system 4, so that the heat pump
- the system 4 can use a larger condenser 42 and an evaporator 43 to increase the heat exchange capacity of the heat pump system 4 and improve the drying effect.
- the first driving motor 6 may also be connected to the fan 3 to simultaneously drive the fan 3 to rotate.
- the number of motors used can be reduced, so that the space occupied by the motors in the cabinet 1 is reduced.
- the heat pump clothes dryer can also be separately provided with a second driving motor connected to the fan 3 for driving the fan 3 separately. Therefore, the drum 2 and the fan 3 are driven by the first driving motor 6 and the second driving motor, respectively, so that the drum 2 and the fan 3 can be controlled separately to avoid the mutual influence of the operating states of the two.
- control device is also electrically connected with the second driving motor, and the control device is used to control the normal operation of the fan 3 when the drum 2 stops rotating.
- the control device is also used to control the normal operation of the heat pump system 4 when the drum 2 stops rotating.
- the heat pump system 4 is prevented from switching between the running state and the stopped running state during the drying process, so as to avoid the heat pump system 4 from re-heating and heating when switching to the running state, resulting in a decrease in the drying efficiency.
- Fig. 12 is a schematic diagram of another heat pump clothes dryer provided by the present invention.
- the heat pump dryer may further include a heating element 8, which is arranged between the air outlet of the condenser 42 and the dry hot air inlet of the drum 2, that is, in the second part A3 of the air duct .
- the hot dry air discharged from the air outlet of the condenser 42 can be reheated when it flows through the heating element 8, so that the temperature of the hot dry air flowing into the drum 2 rises again, thereby accelerating the drying speed and improving the drying rate. Dry efficiency.
- the heating element 8 can speed up the temperature rise, so as to improve the drying efficiency and shorten the drying process. Dry time.
- the heating element 8 can be an electric heating wire, a heat exchange tube with a flow of heat exchange medium, a PCT heating element, or other heating devices well known to those skilled in the art.
- the heating element 8 may be arranged at the bottom of the drum 2 or inside the drum 2, as long as the temperature of the dry hot air entering the drum 2 can be increased.
- the heating element 8 may also be electrically connected to a control device, which is also used to periodically control the drum 2 to stop rotating, and when the drum 2 stops rotating, the control device also controls the heating element 8 to stop heating. Thus, it is avoided that the heating element 8 continues to heat and dry when the drum 2 is stopped, and the temperature of the dry hot air sent into the drum 2 is prevented from being too high, causing the laundry staying in the drum 2 to be burned.
- a control device which is also used to periodically control the drum 2 to stop rotating, and when the drum 2 stops rotating, the control device also controls the heating element 8 to stop heating.
- Fig. 13 is a schematic flow chart 1 of the control method of the heat pump clothes dryer provided by the present invention. As shown in Figures 1 to 13, this embodiment also provides a method for controlling a heat pump clothes dryer, which includes the following steps:
- the control method of the heat pump clothes dryer controls the ventilation assembly 5 to introduce cold air into the first part A2 and/or exhaust part of the hot and humid air in the first part A2 according to the working temperature of the heat pump system 4, so as to reduce the evaporation
- the temperature of the hot and humid air in the compressor 43 reduces the discharge temperature of the compressor 41, thereby avoiding the frequent start and stop of the compressor 41 during high-load operation.
- control methods are briefly introduced in combination with the structure of the heat pump dryer, but these control methods should not be regarded as specific restrictions on the control method of the heat pump dryer.
- Fig. 14 is a second flowchart of the method for controlling the heat pump clothes dryer provided by the present invention.
- the air exchange assembly 5 is controlled to introduce cold air into a part of the air duct connecting the evaporator 43 and the hot and humid air outlet 21 of the drum 2; and/or, control the exchange
- the implementation manners for the air assembly 5 to discharge some hot and humid air in the first part A2 include but are not limited to the following:
- the temperature of the air inlet of the evaporator 43 determines whether the temperature of the air inlet of the evaporator 43 is greater than the first preset temperature; if so, control the ventilation assembly 5 to introduce cold air into the In a part of the air duct connecting the evaporator 43 and the hot and humid air outlet 21 of the drum 2; and/or, the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2.
- the temperature of the air outlet of the condenser 42 obtains the temperature of the air outlet of the condenser 42; determine whether the temperature of the air outlet of the condenser 42 is greater than the second preset temperature; The evaporator 43 and a part of the air duct of the hot and humid air outlet 21 of the drum 2; and/or, the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2.
- the temperature of the air outlet of the compressor 41 determines whether the temperature of the air outlet of the compressor 41 is greater than the third preset temperature; if so, control the ventilation assembly 5 to introduce cold air to the connection The evaporator 43 and a part of the air duct of the hot and humid air outlet 21 of the drum 2; and/or, the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2.
- control ventilation assembly 5 introduces cold air into a part of the air duct connecting the evaporator 43 and the hot and humid air outlet 21 of the drum 2 to specifically include: controlling the driver 54 to drive the first cover 53 to move to open the air inlet 52
- the control of the ventilation assembly 5 to discharge some hot and humid air in the first part A2 out of the first part A2 specifically includes: controlling the driver 54 to drive the second cover 56 to move to open the air outlet 55.
- the two drivers 54 are respectively controlled to open and close the air inlet 52 and/or the air outlet 55;
- control driver 54 can open or close the air inlet 52 and the air outlet 55 at the same time.
- the process of starting the heat pump dryer can be divided into an energy-saving mode and a fast drying mode.
- the heat pump dryer automatically executes the corresponding control method.
- Fig. 15 is the third flow diagram of the control method of the heat pump clothes dryer provided by the present invention. As shown in Figure 15, in the energy-saving mode, starting the heat pump dryer specifically includes:
- the drum 2 is controlled to rotate, the fan 3 is operated, and the heat pump system 4 is operated, and the ventilation assembly 5 is controlled not to introduce cold air outside the air duct into the first part A2, and not to discharge part of the hot and humid air in the first part A2 out of the first part A2.
- the control of the rotation of the drum 2 and the operation of the fan 3 can be executed in sequence or simultaneously.
- the drum 2 and the fan 3 are driven by the first driving motor 6 at the same time, the rotation of the drum 2 is controlled while the fan 3 is controlled to operate.
- the drum 2 and the fan 3 are driven by the first driving motor 6 and the second driving motor, respectively, the drum 2 can be controlled to rotate first, and then the fan 3 can be controlled to operate.
- controlling the rotation of the drum 2 specifically includes: controlling the periodic forward and reverse rotation of the drum 2 and stopping the rotation for a preset time when the drum 2 is switched between the forward rotation and the reverse rotation. It should be understood that when the drum 2 and the fan 3 are driven by the first drive motor 6 and the second drive motor, respectively, when the drum 2 stops rotating, the fan 3 can keep running through the control of the second drive motor by the control device. state. Therefore, it is avoided that the fan 3 stops running under the influence of the drum 2, which causes the drying speed to decrease.
- the heat pump system 4 is controlled to work.
- the heat pump system 4 is prevented from starting at the same time, so as to prevent the excessive inrush current from being generated at the moment of starting to cause the circuit to be damaged.
- the heat pump system 4 can be controlled by the control device to keep working. As a result, it can be avoided that the heat pump system 4 needs to be preheated and heated again after being switched from the stop working state to the working state, which results in a long drying time.
- the heat pump dryer in the early stage of drying, when the heat pump dryer is started, only the drum 2, the fan 3 and the heat pump system 4 operate to dry the clothes.
- the heat pump dryer has low energy consumption .
- FIG. 16 is a fourth flowchart of the method for controlling the heat pump clothes dryer provided by the present invention. As shown in Figure 16, in the fast drying mode, starting the heat pump dryer specifically includes:
- the heating element 8 can be controlled to be heated first, and then the heat pump system 4 can be controlled to work; or the heat pump system 4 can be operated and the heating element 8 can be controlled at the same time. heating.
- a preferred example of this embodiment is to control the work of the heat pump system 4 first, and then control the heating element 8 to heat. Therefore, the heat pump system 4 and the heating element 8 are prevented from starting at the same time, so as to prevent the excessive inrush current from being generated at the moment of starting and causing the circuit to be damaged, and to prevent the heating element 8 from being dry-burned in the early stage of drying.
- control method further includes: controlling the heating element 8 to stop heating when the drum 2 stops rotating.
- the heating element 8 is prevented from continuously heating and dry burning when the drum 2 stops rotating, and the temperature of the dry hot air sent into the drum 2 is prevented from being too high, causing the laundry staying in the drum 2 to be burned.
- energy consumption should be avoided.
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Abstract
Disclosed are a heat pump clothes dryer and a control method for the heat pump clothes dryer. The heat pump clothes dryer comprises a drum (2), a heat pump system (4), a fan (3) and a ventilation assembly (5), wherein the heat pump system (4) comprises an air duct, a condenser (42) and an evaporator (43); the air duct comprising a first part (A2) in communication with a hot humid air outlet (21) of the drum (2) and an air inlet of the evaporator (43); and the ventilation assembly (5) is mounted on the first part (A2) of the air duct, and the ventilation assembly (5) is provided with an air intake hole (52) and an air output hole (55) which are capable of being opened and closed, the air intake hole (52) being used for introducing cold air outside the air duct into the first part (A2), and the air output hole (55) being used for discharging some of hot humid air inside the first part (A2). By means of the arrangement, the ventilation assembly (5) can guide cold air into the air duct and/or exhaust the hot humid air in the first part (A2) of the air duct, so as to reduce the temperature of the hot humid air exchanging heat with a refrigerant in a pipeline of the evaporator (43), thereby reducing the temperature of the exhaust air of a compressor (41), and preventing the compressor (41) from being repeatedly started and stopped due to overload.
Description
本申请要求于2020年05月20日提交中国专利局、申请号为202010431219.2、申请名称为“换气组件和热泵干衣机”的中国专利申请的优先权、于2020年05月20日提交中国专利局、申请号为202010431212.0、申请名称为“热泵干衣机及热泵干衣机的控制方法”的中国专利申请的优先权、及于2020年05月20日提交中国专利局、申请号为202010431216.9、申请名称为“热泵干衣机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed with the Chinese Patent Office on May 20, 2020, the application number is 202010431219.2, and the application name is "Ventilation components and heat pump dryers", and it is filed in China on May 20, 2020. The patent office, the application number is 202010431212.0, the priority of the Chinese patent application named "heat pump dryer and heat pump dryer control method", and the application number is 202010431216.9 submitted to the China Patent Office on May 20, 2020 1. The priority of the Chinese patent application named "Heat Pump Dryer", the entire content of which is incorporated in this application by reference.
本发明涉及干衣机技术,尤其涉及一种热泵干衣机及热泵干衣机的控制方法。The invention relates to a clothes dryer technology, in particular to a heat pump clothes dryer and a control method of the heat pump clothes dryer.
热泵干衣机是一种常用的家用电器,用于烘干衣物。The heat pump dryer is a commonly used household appliance for drying clothes.
热泵干衣机包括滚筒、风机、风道和热泵系统;滚筒与风道连通,热泵系统包括压缩机、冷凝器以及蒸发器,至少风机、冷凝器和蒸发器设置在风道内。热泵干衣机工作时,制冷剂在热泵系统中发生气液两相变化,以吸收或放出热量,其中,制冷剂在冷凝器处冷凝放热;风机带动风道中的空气经过冷凝器,空气吸收热量升温变为干热空气,干热空气被送入滚筒,并带走了衣物的湿气变为湿热空气,使得衣物温度升高、水分减少;湿热空气排出滚筒,被送至蒸发器处进行降温除湿;降温除湿后的空气随后经冷凝器升温,周而复始,实现烘干衣物。The heat pump clothes dryer includes a drum, a fan, an air duct and a heat pump system; the drum is connected to the air duct, and the heat pump system includes a compressor, a condenser and an evaporator, at least the fan, the condenser and the evaporator are arranged in the air duct. When the heat pump dryer is working, the refrigerant undergoes a gas-liquid two-phase change in the heat pump system to absorb or release heat. Among them, the refrigerant condenses and releases heat at the condenser; the fan drives the air in the air duct to pass through the condenser, and the air absorbs The heat rises up and turns into dry and hot air, and the dry and hot air is sent into the drum, and takes away the moisture of the clothes to become hot and humid air, which makes the temperature of the clothes increase and the moisture decreases; the hot and humid air exits the drum and is sent to the evaporator for processing Cooling and dehumidification; the cooled and dehumidified air is then heated by the condenser, and the cycle is repeated to achieve drying of clothes.
然而,当从滚筒排出的气流温度升高时,例如在烘干后期,待烘干衣物湿度降低,待烘干衣物所需的热量减少,从滚筒排出的湿热空气的温度会相应的升高,此时压缩机因排气温度过高而处于高负荷工作状态,导致压缩机频繁启停,从而影响烘干效率。However, when the temperature of the airflow discharged from the drum increases, for example, in the later stage of drying, the humidity of the clothes to be dried decreases, and the heat required for the clothes to be dried decreases, and the temperature of the hot and humid air discharged from the drum will increase accordingly. At this time, the compressor is in a high-load working state due to the excessively high exhaust temperature, which causes the compressor to start and stop frequently, which affects the drying efficiency.
发明内容Summary of the invention
本发明的一个方面是提供一种热泵干衣机,其包括:滚筒、热泵系统、风机以及换气组件,滚筒具有干热风进口与湿热风出口,热泵系统包括风道、冷凝器和蒸发器;所述风道包括第一部分、第二部分和第三部分;所述湿热风出口和所述蒸发器的进气口通过所述第一部分连通,所述蒸发器的出气口与所述冷凝器的进气口通过所述第二部分连通,所述冷凝器的出气口与所述干热风进口通过所述第三部分连通;风机用于驱动空气在所述风道和所述滚筒内流动;换气组件设于所述风道的第一部分,具有可开闭的进气孔和出气孔;所述进气孔用于将所述风道外的冷风引入所述风道的第一部分;所述出气孔用于将所述风道的第一部分内的部分湿热空气排出。One aspect of the present invention is to provide a heat pump clothes dryer, which includes a drum, a heat pump system, a fan, and a ventilation component. The drum has an inlet for dry and hot air and an outlet for hot and humid air. The heat pump system includes an air duct, a condenser, and an evaporator; The air duct includes a first part, a second part and a third part; the hot and humid air outlet and the air inlet of the evaporator are communicated through the first part, and the air outlet of the evaporator is connected to the condenser The air inlet is communicated through the second part, and the air outlet of the condenser is communicated with the dry hot air inlet through the third part; the fan is used to drive air to flow in the air duct and the drum; The air assembly is arranged in the first part of the air duct, and has an openable and closable air inlet and an air outlet; the air inlet is used to introduce cold air outside the air duct into the first part of the air duct; The air hole is used to exhaust part of the hot and humid air in the first part of the air duct.
本发明的一个方面的技术效果是:通过设置换气组件,换气组件将冷风从进气孔引入到风道的第一部分内,或者将风道的第一部分内的一些湿热空气排出到风道外,以降低与蒸发器的管道中的制冷剂进行换热的湿热空气的温度,从而降低了压缩机的排气温度,有利于避免压缩机因高负荷而频繁启停所导致的烘干效率降低。The technical effect of one aspect of the present invention is: by providing a ventilating assembly, the ventilating assembly introduces cold air from the air inlet into the first part of the air duct, or discharges some hot and humid air in the first part of the air duct to the outside of the air duct , To reduce the temperature of the hot and humid air that exchanges heat with the refrigerant in the evaporator pipe, thereby reducing the discharge temperature of the compressor, which is beneficial to avoid the reduction of drying efficiency caused by frequent start and stop of the compressor due to high load .
本发明的另一个方面是提供一种热泵干衣机的控制方法,其包括:启动热泵干衣机;根据热泵系统的工作温度,控制换气组件将冷风引入到用于连接蒸发器和滚筒的湿热风出口的一部分风道内,或者,控制所述换气组件将所述风道内的一些湿热空气排出。Another aspect of the present invention is to provide a control method of a heat pump clothes dryer, which includes: starting the heat pump clothes dryer; according to the working temperature of the heat pump system, controlling the ventilation assembly to introduce cold air to the connecting evaporator and the drum The hot and humid air outlet is in a part of the air duct, or the ventilation assembly is controlled to discharge some hot and humid air in the air duct.
本发明的另一个方面的技术效果是:热泵干衣机根据热泵系统的工作温度,控制换气组件向第一部分内导入冷风和/或将第一部分内的部分湿热空气排出,以降低进入蒸发器的湿热空气的温度,进而降低压缩机的排气温度,从而有利于避免压缩机高负荷工作而频繁启停。The technical effect of another aspect of the present invention is that the heat pump clothes dryer controls the ventilation component to introduce cold air into the first part and/or discharge part of the humid and hot air in the first part according to the working temperature of the heat pump system, so as to reduce entering the evaporator The temperature of the hot and humid air reduces the discharge temperature of the compressor, which helps to avoid the frequent start and stop of the compressor during high-load work.
图1为本发明提供的一种热泵干衣机的原理示意图;Fig. 1 is a schematic diagram of the principle of a heat pump clothes dryer provided by the present invention;
图2为本发明提供的热泵干衣机的部分结构示意图一;Fig. 2 is a partial structural diagram 1 of the heat pump clothes dryer provided by the present invention;
图3为图2中热泵系统的结构示意图;Figure 3 is a schematic diagram of the structure of the heat pump system in Figure 2;
图4为本发明提供的热泵干衣机的部分结构示意图二;Fig. 4 is a second schematic diagram of a part of the structure of the heat pump clothes dryer provided by the present invention;
图5为图4中后侧板的结构示意图;Fig. 5 is a schematic diagram of the structure of the rear side plate in Fig. 4;
图6为本发明提供的热泵干衣机的部分结构示意图三;FIG. 6 is a third schematic diagram of a part of the structure of the heat pump clothes dryer provided by the present invention;
图7为图6中前支撑与换气组件的结构示意图;Fig. 7 is a schematic diagram of the structure of the front support and ventilation assembly in Fig. 6;
图8为图7中A部分的结构示意图;FIG. 8 is a schematic diagram of the structure of part A in FIG. 7;
图9为图1中换气组件的局部放大图;Fig. 9 is a partial enlarged view of the ventilation assembly in Fig. 1;
图10为本发明提供的一种热泵干衣机中换气组件的一种驱动结构示意图;10 is a schematic diagram of a driving structure of a ventilation component in a heat pump clothes dryer provided by the present invention;
图11为本发明提供的一种热泵干衣机中换气组件的另一种驱动结构示意图;11 is a schematic diagram of another driving structure of a ventilation component in a heat pump clothes dryer provided by the present invention;
图12为本发明提供的另一种热泵干衣机的原理示意图;Figure 12 is a schematic diagram of another heat pump clothes dryer provided by the present invention;
图13本发明提供的热泵干衣机控制方法的流程示意图一;Fig. 13 is the first flow diagram of the control method of the heat pump clothes dryer provided by the present invention;
图14为本发明提供的热泵干衣机控制方法的流程示意图二;14 is a schematic diagram of the second flow of the heat pump clothes dryer control method provided by the present invention;
图15为本发明提供的热泵干衣机控制方法的流程示意图三;FIG. 15 is the third flow diagram of the heat pump clothes dryer control method provided by the present invention;
图16为本发明提供的热泵干衣机控制方法的流程示意图四。FIG. 16 is a fourth flowchart of the method for controlling the heat pump clothes dryer provided by the present invention.
附图中:In the attached picture:
1:箱体;11:后侧板;110:进风孔;2:滚筒;21:湿热风出口;3:风机;4:热泵系统;41:压缩机;42:冷凝器;43:蒸发器;5:换气组件;51:本体;511:安装板;512:第一壁板;513:第二壁板;514:腔体;52:进气孔;53:第一盖板;531:第一转轴;54:驱动器;55:出气孔;56:第二盖板;561:第二转轴;57:第三转轴;58:第一连杆;59:第二连杆;6:第一驱动电机;7:前支撑;71:第一通孔;72:第二通孔;8:加热件;9:第一过滤器;A1:热泵回路;A2:第一部分;A21:第一段;A22:第二段;A3:第二部分;A4:第三部分。1: cabinet; 11: rear side panel; 110: air inlet; 2: drum; 21: hot and humid air outlet; 3: fan; 4: heat pump system; 41: compressor; 42: condenser; 43: evaporator 5: ventilating components; 51: body; 511: mounting plate; 512: first wall plate; 513: second wall plate; 514: cavity; 52: air inlet; 53: first cover plate; 531: The first shaft; 54: the driver; 55: the air outlet; 56: the second cover plate; 561: the second shaft; 57: the third shaft; 58: the first connecting rod; 59: the second connecting rod; 6: the first Drive motor; 7: front support; 71: first through hole; 72: second through hole; 8: heating element; 9: first filter; A1: heat pump circuit; A2: first part; A21: first section; A22: Second paragraph; A3: Second part; A4: Third part.
以下结合附图对本发明的具体实施方式进行详细说明,应当理解的是,此处所描述的具体实施方式仅用于说明和解释本发明,本发明不局限于下述的具体实施方式。The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and the present invention is not limited to the following specific embodiments.
热泵干衣机是一种常用的家用电器,用于烘干衣物。The heat pump dryer is a commonly used household appliance for drying clothes.
热泵干衣机包括箱体、可转动设置于箱体内的滚筒,以及安装在箱体和滚筒之间、且用于对滚筒内的衣物进行烘干的烘干冷凝系统。其中,烘 干冷凝系统包括风机、热泵系统以及风道。The heat pump clothes dryer includes a box body, a drum rotatably arranged in the box body, and a drying and condensing system installed between the box body and the drum and used for drying the clothes in the drum. Among them, the drying and condensing system includes a fan, a heat pump system and an air duct.
热泵系统包括压缩机、冷凝器以及蒸发器。冷凝器和蒸发器均包括有供气体流动的气体流道以及供制冷剂流动的管道,气体流道和管道交叉设置,从而可以实现气体与制冷剂之间的热交换。风道将滚筒、风机、冷凝器和蒸发器串联在一起,从而形成用于供热风流动以烘干衣物的风道。其中,风机用于保持热风在风道和滚筒之间的循环流动,蒸发器用于使从滚筒进入风道内的湿热空气降温以去除湿热空气内的水汽,冷凝器则用于将在蒸发器内去除水汽并降温后的干冷空气加热。The heat pump system includes a compressor, a condenser, and an evaporator. Both the condenser and the evaporator include a gas flow channel for gas flow and a pipe for refrigerant flow. The gas flow channel and the pipe are arranged crosswise, so that heat exchange between the gas and the refrigerant can be realized. The air duct connects the drum, the fan, the condenser and the evaporator in series to form an air duct for the flow of hot air to dry the clothes. Among them, the fan is used to keep the hot air circulating between the air duct and the drum, the evaporator is used to cool the hot and humid air entering the air duct from the drum to remove the moisture in the hot and humid air, and the condenser is used to remove the moisture in the evaporator. The cold and dry air heated by water vapor and cooling.
具体而言,热泵干衣机在启动后,风机驱动箱体内的空气在风道和滚筒之间循环流动。从滚筒出风口进入风道内的湿热空气从蒸发器的进气口进入蒸发器内,并与蒸发器管道内的制冷剂进行热交换,湿热空气的热量交换给蒸发器管道内的制冷剂,使得制冷剂升温气化,湿热空气中的水汽由于温度降低而凝结成冷凝水并在重力作用下从空气中分离,失去大量水汽的干冷空气则从蒸发器的出气口排出,随后从冷凝器的进气口进入到冷凝器中。Specifically, after the heat pump dryer is started, the fan drives the air in the box to circulate between the air duct and the drum. The hot and humid air entering the air duct from the air outlet of the drum enters the evaporator from the air inlet of the evaporator and exchanges heat with the refrigerant in the evaporator pipe. The heat of the hot and humid air is exchanged with the refrigerant in the evaporator pipe to make The refrigerant heats up and vaporizes, the water vapor in the hot and humid air condenses into condensed water due to the decrease in temperature and is separated from the air under the action of gravity. The gas port enters the condenser.
在蒸发器内升温气化后的制冷剂在压缩机的作用下变成高温高压气体,然后流入冷凝器的管道内,并与从冷凝器的进气口进入冷凝器的干冷空气进行热交换,干冷空气在吸收高温高压气相制冷剂的大量热量后变成干热空气从冷凝器的出气口排出,随后从滚筒的进风口流入滚筒内,以便对滚筒内的衣物进行干燥。The refrigerant that has been heated and vaporized in the evaporator becomes a high-temperature and high-pressure gas under the action of the compressor, and then flows into the pipe of the condenser, and exchanges heat with the dry and cold air entering the condenser from the inlet of the condenser. After absorbing a large amount of heat from the high-temperature and high-pressure gas phase refrigerant, the dry and cold air becomes hot and dry air and is discharged from the air outlet of the condenser, and then flows into the drum from the air inlet of the drum to dry the clothes in the drum.
干热空气在将湿衣物中的水气化以后变成湿热空气,随后再一次从滚筒的出风口进入风道内,从而开始下一次循环。冷凝器管道内失去热量的制冷剂则流回到蒸发器的管道内,以便开始下一次循环。如此,最终可以实现衣物的烘干。After the hot dry air vaporizes the water in the wet clothes, it turns into hot and humid air, and then enters the air duct from the air outlet of the drum again to start the next cycle. The refrigerant that loses heat in the condenser pipe flows back into the evaporator pipe to start the next cycle. In this way, the clothes can be dried finally.
然而,在烘干后期,衣物的湿度已经大幅降低,从滚筒进风口进入滚筒内的干热空气的温度下降幅度明显变小,使得从滚筒出风口排出的湿热空气的温度会有明显的增加,在与蒸发器管道中的制冷剂换热后,会使得压缩机的排气温度过高,导致压缩机停机或出现断断续续工作的情况,从而影响烘干效率。However, in the later stage of drying, the humidity of the clothes has been greatly reduced, and the temperature drop of the dry and hot air entering the drum from the drum air inlet is significantly smaller, so that the temperature of the moist and hot air discharged from the drum air outlet will increase significantly. After the heat exchange with the refrigerant in the evaporator pipe, the exhaust temperature of the compressor will be too high, causing the compressor to stop or work intermittently, thereby affecting the drying efficiency.
有鉴于此,本发明可以考虑在滚筒的湿热风出口与蒸发器之间的风道 上设置冷却组件,用于降低流向蒸发器和冷凝器的气流温度,使其温度符合蒸发器和冷凝器的工作温度范围,压缩机可以处于高效工作状态,避免压缩机停机。In view of this, the present invention can consider installing a cooling component on the air duct between the hot and humid air outlet of the drum and the evaporator to reduce the temperature of the airflow to the evaporator and the condenser, so that the temperature is in line with the work of the evaporator and the condenser. In the temperature range, the compressor can be in a high-efficiency working state to avoid compressor shutdown.
实施例一Example one
图1为本发明提供的一种热泵干衣机的原理示意图,图2为本发明提供的热泵干衣机的部分结构示意图一,图3为图2中热泵系统的结构示意图,图4为本发明提供的热泵干衣机的部分结构示意图二,图5为图4中后侧板的结构示意图。如图1至图5所示,热泵干衣机包括箱体1、可转动的设置在箱体1内的滚筒2,以及设置在箱体1和滚筒2之间、且用于对滚筒2内的衣物进行烘干的风机3和热泵系统4,箱体1对滚筒2、风机3及热泵系统4形成防护。其中,滚筒2的筒底设置有干热风进口(也即滚筒2的进风口,图1中位于滚筒2的右端),滚筒2的筒口设置有湿热风出口21(也即滚筒2的出风口,图1中位于滚筒2的左端)。Fig. 1 is a schematic diagram of the principle of a heat pump clothes dryer provided by the present invention, Fig. 2 is a partial structural diagram 1 of the heat pump clothes dryer provided by the present invention, Fig. 3 is a schematic structural diagram of the heat pump system in Fig. 2, and Fig. 4 is a schematic diagram of the heat pump system in Fig. 2 The second partial structural diagram of the heat pump clothes dryer provided by the present invention. FIG. 5 is a structural diagram of the rear side plate in FIG. 4. As shown in Figures 1 to 5, the heat pump clothes dryer includes a box body 1, a drum 2 rotatably arranged in the box body 1, and a drum 2 arranged between the box body 1 and the drum 2 and used for aligning the inside of the drum 2. The fan 3 and the heat pump system 4 are used to dry the clothes, and the cabinet 1 protects the drum 2, the fan 3 and the heat pump system 4. Among them, the bottom of the drum 2 is provided with a hot and dry air inlet (that is, the air inlet of the drum 2, which is located at the right end of the drum 2 in FIG. 1), and the opening of the drum 2 is provided with a hot and humid air outlet 21 (that is, the air outlet of the drum 2, Located at the left end of the drum 2 in Figure 1).
热泵系统4包括风道、冷凝器42、蒸发器43和压缩机41。冷凝器42和蒸发器43均包括有供气体流动的气体流道以及供制冷剂流动的管道,气体流道和管道交叉设置,从而可以实现气体与制冷剂之间的热交换。风道包括依次连通的第一部分A2、第二部分A3、第三部分A4和第四部分,湿热风出口21和蒸发器43的进气口通过第一部分A2连通,蒸发器43的出气口与冷凝器42的进气口通过第二部分A3连通,冷凝器42的出气口与干热风进口通过第三部分A4连通,滚筒2内形成第四部分。The heat pump system 4 includes an air duct, a condenser 42, an evaporator 43, and a compressor 41. Both the condenser 42 and the evaporator 43 include a gas flow channel for gas flow and a pipe for refrigerant flow, and the gas flow channel and the pipe are arranged in an intersecting manner, so that heat exchange between the gas and the refrigerant can be realized. The air duct includes a first part A2, a second part A3, a third part A4, and a fourth part that are connected in sequence. The hot and humid air outlet 21 and the air inlet of the evaporator 43 are connected through the first part A2, and the air outlet of the evaporator 43 is connected to the condenser The air inlet of the condenser 42 is connected through the second part A3, the air outlet of the condenser 42 and the hot dry air inlet are communicated through the third part A4, and the fourth part is formed in the drum 2.
在图1中,风机3设置在第一部分A2,压缩机41独立于风道设置,压缩机41位于蒸发器43的出气口与冷凝器42的进气口之间,蒸发器43、压缩机41和冷凝器42依次相连并构成用于供制冷剂循环流动的热泵回路A1。In Figure 1, the fan 3 is arranged in the first part A2, the compressor 41 is arranged independently of the air duct, the compressor 41 is located between the air outlet of the evaporator 43 and the air inlet of the condenser 42, the evaporator 43, the compressor 41 It is connected to the condenser 42 in sequence and constitutes a heat pump circuit A1 for circulating the refrigerant.
其中,蒸发器43用于将第一部分A2内的湿热空气降温以去除湿热空气内的水汽,冷凝器42用于将在蒸发器43内去除水汽并降温后的干冷空气加热,压缩机41用于压缩制冷剂,是制冷剂沿热泵回路A1循环工作的动力供给单元。Among them, the evaporator 43 is used to cool the hot and humid air in the first part A2 to remove the water vapor in the hot and humid air, the condenser 42 is used to heat the dry and cold air after the water vapor is removed and the temperature is reduced in the evaporator 43, and the compressor 41 is used to Compressed refrigerant is a power supply unit that circulates the refrigerant along the heat pump circuit A1.
风机3与风道连通,风机3用于驱动空气在风道和滚筒2流动。其中,风机3可以包括电机和扇叶,电机与扇叶传动连接,电机驱动扇叶转动以保持空气在风道和滚筒2之间流动。The fan 3 is connected to the air duct, and the fan 3 is used to drive air to flow between the air duct and the drum 2. Wherein, the fan 3 may include a motor and a fan blade, and the motor is in a transmission connection with the fan blade, and the motor drives the fan blade to rotate to keep air flowing between the air duct and the drum 2.
第四部分可以由箱体1的后侧板11和风道盖板形成,风道盖板设置在箱体1的后侧板11背离滚筒2的一侧,箱体1的后侧板11上与干热风进口相对应的位置设有进风孔110,进风孔110可以沿滚筒2的周向设置。The fourth part can be formed by the rear side plate 11 of the box body 1 and the air duct cover plate. The air duct cover plate is arranged on the side of the rear side plate 11 of the box body 1 facing away from the drum 2. An air inlet 110 is provided at a position corresponding to the dry and hot air inlet, and the air inlet 110 may be arranged along the circumference of the drum 2.
具体而言,热泵干衣机工作时,滚筒2在箱体1内转动,滚筒2内的衣物随滚筒2的转动在其内部上下翻转;风机3驱动箱体1内的空气在风道和滚筒2内流动。从湿热风出口21进入第一部分A2的湿热空气从蒸发器43的进气口进入蒸发器43内,并与蒸发器43管道内的制冷剂进行热交换,蒸发器43管道内的制冷剂吸收湿热空气的热量并升温气化,湿热空气中的水汽由于温度降低而凝结成冷凝水并在重力作用下从空气中分离,湿热空气失去大量水汽而变成干冷空气,干冷空气则从蒸发器43的出气口排出,随后干冷空气沿第二部分A3流至冷凝器42的进气口,并从冷凝器42的进气口进入到冷凝器42中。Specifically, when the heat pump dryer is working, the drum 2 rotates in the cabinet 1, and the laundry in the drum 2 flips up and down with the rotation of the drum 2; the fan 3 drives the air in the cabinet 1 in the air duct and the drum 2 flows within. The hot and humid air entering the first part A2 from the hot and humid air outlet 21 enters the evaporator 43 from the air inlet of the evaporator 43, and exchanges heat with the refrigerant in the pipe of the evaporator 43, and the refrigerant in the pipe of the evaporator 43 absorbs damp heat The heat of the air heats up and vaporizes. The water vapor in the hot and humid air condenses into condensed water due to the decrease in temperature and is separated from the air under the action of gravity. The hot and humid air loses a large amount of water vapor and becomes dry and cold air. The air outlet is discharged, and then the dry and cold air flows along the second part A3 to the air inlet of the condenser 42 and enters the condenser 42 from the air inlet of the condenser 42.
在蒸发器43内升温气化后的制冷剂在压缩机41的作用下变成高温高压气体,然后流入冷凝器42的管道内,并与从冷凝器42进气口进入冷凝器42的干冷空气进行热交换,干冷空气在吸收高温高压气相制冷剂的大量热量后变成干热空气,干热空气从冷凝器42的出气口流入风道的第三部分A4,随后经干热风进口流入滚筒2内,以便对滚筒2内的衣物进行干燥。The refrigerant heated and vaporized in the evaporator 43 becomes a high-temperature and high-pressure gas under the action of the compressor 41, and then flows into the pipe of the condenser 42 and interacts with the dry and cold air entering the condenser 42 from the inlet of the condenser 42 For heat exchange, the dry and cold air absorbs a large amount of heat from the high-temperature and high-pressure gas phase refrigerant and becomes hot dry air. The hot dry air flows from the outlet of the condenser 42 into the third part A4 of the air duct, and then flows into the drum 2 through the hot dry air inlet. In order to dry the laundry in the drum 2.
干热空气在将湿衣物中的水气化以后变成湿热空气,随后再一次从湿热风出口21进入第一部分A2,从而开始下一次循环。冷凝器42管道内失去热量的制冷剂则流回到蒸发器43的管道内,以便开始下一次循环。如此,最终可以实现衣物的烘干。The hot dry air will become hot and humid air after vaporizing the water in the wet clothes, and then enter the first part A2 from the hot and humid air outlet 21 again to start the next cycle. The refrigerant that loses heat in the tube of the condenser 42 flows back into the tube of the evaporator 43 to start the next cycle. In this way, the clothes can be dried finally.
可以理解的,蒸发器43的下方还可以设置有接水盘。这样,从滚筒2的湿热风出口21排出的湿热空气流经蒸发器43时,气流中的湿热空气可以降温冷凝以析出冷凝水,达到除湿的目的,接水盘用于收集湿热空气所凝结成的冷凝水,以免析出的冷凝水落于箱体1内,进而有利于避免冷凝水流至地面上。It is understandable that a water receiving pan may also be provided under the evaporator 43. In this way, when the hot and humid air discharged from the hot and humid air outlet 21 of the drum 2 flows through the evaporator 43, the hot and humid air in the airflow can be cooled and condensed to precipitate condensed water to achieve the purpose of dehumidification. In order to prevent the precipitated condensate from falling into the box 1, it is beneficial to prevent the condensed water from flowing to the ground.
其中,热泵系统4可以设置在滚筒2外周的任意位置,考虑到热泵系统4重量大,热泵系统4可以设置在滚筒2的底部,避免因热泵系统4支撑不牢固而掉落。蒸发器43、冷凝器42和风机3可以沿滚筒2的轴线方向间隔设置,避免因蒸发器43、冷凝器42、风机3沿滚筒2的径向错开设置所导致的风道的总长度增加,从而可以降低风阻,减少热风的热损耗。Wherein, the heat pump system 4 can be arranged at any position on the outer circumference of the drum 2. Considering the heavy weight of the heat pump system 4, the heat pump system 4 can be arranged at the bottom of the drum 2 to prevent the heat pump system 4 from falling due to weak support. The evaporator 43, the condenser 42, and the fan 3 can be arranged at intervals along the axis of the drum 2 to avoid the increase in the total length of the air duct caused by the staggered arrangement of the evaporator 43, the condenser 42, and the fan 3 along the radial direction of the drum 2. Thereby, the wind resistance can be reduced, and the heat loss of the hot air can be reduced.
图6为本发明提供的热泵干衣机的部分结构示意图三,图7为图6中前支撑与换气组件的结构示意图,图8为图7中A部分的结构示意图。根据热泵干衣机结构,风道的各个部分之间的结构不同。示例性地,如图6至图8所示,第一部分A2可以形成在热泵干衣机的前支撑7上,前支撑7还具有用于支撑滚筒2的湿热风出口21的支撑部,第一部分A2具有与滚筒2的湿热风出口21连通的第一通孔71和与蒸发器43的进气口连通的第二通孔72。由此,从湿热风出口21排出的湿热空气容易进入第一部分A2。Fig. 6 is a partial structural diagram 3 of the heat pump clothes dryer provided by the present invention, Fig. 7 is a structural diagram of the front support and ventilation assembly in Fig. 6, and Fig. 8 is a structural diagram of part A in Fig. 7. According to the structure of the heat pump dryer, the structure of each part of the air duct is different. Exemplarily, as shown in FIGS. 6 to 8, the first part A2 may be formed on the front support 7 of the heat pump dryer. The front support 7 also has a support part for supporting the hot and humid air outlet 21 of the drum 2. The first part A2 has a first through hole 71 communicating with the hot and humid wind outlet 21 of the drum 2 and a second through hole 72 communicating with the air inlet of the evaporator 43. Thereby, the hot and humid air discharged from the hot and humid air outlet 21 easily enters the first portion A2.
其中,前支撑7上可以设有用于支撑滚筒2的湿热风出口21的多个支撑部,多个支撑部可以位于第一通孔71的同一侧或两侧。考虑到滚筒2的湿热风出口21的支撑稳定性,多个支撑部可以对称设置在第一通孔71的两侧,第一通孔71位于滚筒2的湿热风出口21的下侧,也就是说,以过滚筒2轴线的垂直平面为第一平面,第一通孔71可以与第一平面相交或者第一通孔71可以相对于第一平面对称设置。Wherein, the front support 7 may be provided with multiple support parts for supporting the hot and humid air outlet 21 of the drum 2, and the multiple support parts may be located on the same side or both sides of the first through hole 71. Considering the support stability of the hot and humid air outlet 21 of the drum 2, a plurality of supporting parts may be symmetrically arranged on both sides of the first through hole 71, which is located on the lower side of the hot and humid air outlet 21 of the drum 2, namely In other words, taking the vertical plane passing through the axis of the drum 2 as the first plane, the first through hole 71 may intersect the first plane or the first through hole 71 may be symmetrically arranged with respect to the first plane.
图9为图1中换气组件的局部放大图。如图1、图7图8和图9所示,热泵干衣机还包括换气组件5,换气组件5设置在风道的第一部分A2上,也即换气组件5设置在滚筒2的湿热风出口21与蒸发器43进气口之间,用于降低第一部分A2内湿热空气的温度。由此,在烘干后期,衣物的湿度已经大幅降低,进入滚筒2内的干热空气与待烘干衣物交换的热量减少,从湿热风出口21排出的湿热空气的温度会相应的升高,通过设置换气组件5来降低第一部分A2内湿热空气的温度,进而降低压缩机41的排气温度,从而避免压缩机41因高负荷而频繁启停。Fig. 9 is a partial enlarged view of the ventilation assembly in Fig. 1. As shown in Figure 1, Figure 7 Figure 8 and Figure 9, the heat pump dryer also includes a ventilating assembly 5, the ventilating assembly 5 is arranged on the first part A2 of the air duct, that is, the ventilating assembly 5 is arranged on the drum 2 The hot and humid air outlet 21 and the air inlet of the evaporator 43 are used to reduce the temperature of the hot and humid air in the first part A2. As a result, in the later stage of drying, the humidity of the clothes has been greatly reduced, and the heat exchange between the hot and dry air entering the drum 2 and the clothes to be dried is reduced, and the temperature of the hot and humid air discharged from the hot and humid air outlet 21 will increase accordingly. The ventilating assembly 5 is provided to reduce the temperature of the hot and humid air in the first part A2, thereby reducing the discharge temperature of the compressor 41, so as to prevent the compressor 41 from frequently starting and stopping due to high load.
可选地,换气组件5可以具有可开闭的进气孔52,进气孔52用于将风道外的冷风引入风道的第一部分A2内,以降低第一部分A2内湿热空气的温度。如此设置,进气孔52用于将冷风导入到第一部分A2,冷风进入第一部分A2内并与湿热空气混合,以降低与蒸发器43管道中的制冷剂进 行换热的湿热空气的温度,从而降低压缩机41的排气温度,避免了压缩机41因高负荷而频繁启停,从而有利于避免热泵干衣机的烘干效率降低。Optionally, the ventilating assembly 5 may have an openable and closable air inlet 52, which is used to introduce cold air outside the air duct into the first part A2 of the air duct, so as to reduce the temperature of the hot and humid air in the first part A2. In this way, the air inlet 52 is used to introduce cold air into the first part A2, and the cold air enters the first part A2 and mixes with the hot and humid air to reduce the temperature of the hot and humid air that exchanges heat with the refrigerant in the pipe of the evaporator 43, thereby Reducing the discharge temperature of the compressor 41 avoids frequent start and stop of the compressor 41 due to high load, thereby helping to avoid a reduction in the drying efficiency of the heat pump clothes dryer.
这里,需要说明的是,冷风应当作广义理解,即冷风可以理解为箱体1外侧的空气、箱体1与滚筒2之间的空气、或者经由换热设备排出的低温空气,只要其温度低于滚筒2的湿热风出口21排出的湿热空气的温度即可。示例性地,可以将第一部分A2中经蒸发器43降温除湿后的冷空气从进气孔52处重新导入第一部分A2内。Here, it should be noted that cold air should be understood in a broad sense, that is, cold air can be understood as the air outside the box 1, the air between the box 1 and the drum 2, or the low-temperature air discharged through heat exchange equipment, as long as its temperature is low. The temperature of the hot and humid air discharged from the hot and humid air outlet 21 of the drum 2 is sufficient. Exemplarily, the cold air in the first part A2 after being cooled and dehumidified by the evaporator 43 can be re-introduced into the first part A2 from the air inlet 52.
示意性地,进气孔52可以设置在第一部分A2靠近蒸发器43的进气口的一端,也就是说,进气孔52靠近蒸发器43的进气口设置。风机3设置在第一部分A2上,其中,第一部分位于风机3进风的一侧的风压为负,第一部分位于风机3出风的一侧的风压为正,简言之,第一部分A2越靠近蒸发器43的一侧负压越大,通过将进气孔52设置在靠近蒸发器43的一端,便于冷风在负压作用下进入第一部分A2内,流动性好,散热效果好。Illustratively, the air inlet 52 may be provided at an end of the first part A2 close to the air inlet of the evaporator 43, that is, the air inlet 52 is provided close to the air inlet of the evaporator 43. The fan 3 is arranged on the first part A2, wherein the first part is located on the side of the fan 3 where the wind pressure is negative, and the first part is located on the side of the fan 3 where the wind pressure is positive. In short, the first part A2 The side closer to the evaporator 43 increases the negative pressure. By arranging the air inlet 52 at the end close to the evaporator 43, it is convenient for cold air to enter the first part A2 under the negative pressure, with good fluidity and good heat dissipation effect.
可选的,换气组件5可以具有可开闭的出气孔55,出气孔55将第一部分A2内的部分湿热空气排出第一部分A2,以降低第一部分A2内湿热空气的温度。如此设置,出气孔55用于将第一部分A2内的湿热空气导出到第一部分A2外,减少了进入蒸发器43进气口的湿热空气的气量,进而降低了压缩机41的排气温度,从而避免压缩机41发生停机,避免了烘干效率受影响。Optionally, the ventilating assembly 5 may have an openable and closable air outlet 55, and the air outlet 55 discharges part of the hot and humid air in the first part A2 out of the first part A2 to reduce the temperature of the hot and humid air in the first part A2. In this way, the air outlet 55 is used to lead the hot and humid air in the first part A2 to the outside of the first part A2, reducing the amount of hot and humid air entering the air inlet of the evaporator 43, thereby reducing the discharge temperature of the compressor 41, thereby The compressor 41 is prevented from shutting down, and the drying efficiency is prevented from being affected.
示意性地,出气孔55可以设置在第一部分A2靠近滚筒2的湿热风出口21的一端,也即出气孔55远离蒸发器43的进气口设置。由于第一部分A2越靠近滚筒2的一侧正压越大,通过将出气孔55设置在靠近滚筒2的湿热风出口21的一端,便于将第一部分A2的部分湿热空气排出,散热效果好。Illustratively, the air outlet 55 may be arranged at an end of the first part A2 close to the hot and humid air outlet 21 of the drum 2, that is, the air outlet 55 is arranged away from the air inlet of the evaporator 43. Since the positive pressure on the side of the first part A2 closer to the drum 2 is greater, the air outlet 55 is arranged at one end close to the hot and humid air outlet 21 of the drum 2, so that part of the hot and humid air in the first part A2 can be discharged easily, and the heat dissipation effect is good.
结合上文描述的内容,可以理解的是,换气组件5可以具有进气孔52和出气孔55中的至少一者。换句话说,换气组件5上设有进气孔52和/或出气孔55。In combination with the above description, it can be understood that the ventilation assembly 5 may have at least one of the air inlet 52 and the air outlet 55. In other words, the air venting assembly 5 is provided with an air inlet 52 and/or an air outlet 55.
例如,换气组件5仅设有进气孔52时,冷风经进气孔52进入第一部分A2内,第一部分A2内的风量增加,由于热泵干衣机的第一部分A2密 封性不高,部分湿热空气可以通过第一部分A2的装配间隙外泄,部分湿热空气也可以通过进气孔52向外排出,此时进气孔52同时实现进气和排气作用。For example, when the ventilating assembly 5 is provided with only the air inlet 52, the cold air enters the first part A2 through the air inlet 52, and the air volume in the first part A2 increases. Because the first part A2 of the heat pump clothes dryer is not tightly sealed, some The hot and humid air can leak out through the assembly gap of the first part A2, and part of the hot and humid air can also be discharged out through the air inlet 52. At this time, the air inlet 52 performs the functions of air intake and exhaust at the same time.
再例如,如图1和图9所示,换气组件5同时具有可开闭的进气孔52和出气孔55时,进气孔52和出气孔55可以沿着风道的长度方向间隔一段距离设置。由此,进气孔52与出气孔55之间具有一定的距离,避免经出气孔55排出的一部分湿热空气从进气孔52回流至风道的第一部分A2。For another example, as shown in Figures 1 and 9, when the ventilation assembly 5 has both an openable and closable air inlet 52 and an air outlet 55, the air inlet 52 and the air outlet 55 may be spaced apart along the length of the air duct. Distance setting. Therefore, there is a certain distance between the air inlet 52 and the air outlet 55 to prevent a part of the hot and humid air discharged through the air outlet 55 from flowing back from the air inlet 52 to the first part A2 of the air duct.
当换气组件5同时具有可开闭的进气孔52和出气孔55时,出气孔55的面积可以大于进气孔52的面积。由风机3经第三部分A4、第四部分以及第一段A21,热风的流经的路线长,损耗多,而进气孔52靠近风机3,也就是冷风的进气流量会大于热风的出气流量,通过将出气孔55的面积设置为大于进气孔52的面积,使得冷风的进风量可以和热风的出风量可以自动达到平衡,避免冷风导入过多,热泵系统不能及时加热冷风,导致干衣效率降低。When the ventilation assembly 5 has both the openable and closable air inlet 52 and the air outlet 55, the area of the air outlet 55 may be larger than the area of the air inlet 52. From the blower 3 through the third section A4, the fourth section and the first section A21, the hot air flows through a long route and has a lot of loss, and the air inlet 52 is close to the blower 3, that is, the intake flow of cold air will be greater than that of hot air. By setting the area of the air outlet 55 to be larger than the area of the air inlet 52, the air inlet volume of the cold air can be automatically balanced with the air outlet volume of the hot air, avoiding excessive introduction of cold air, and the heat pump system cannot heat the cold air in time, resulting in dryness. The clothing efficiency is reduced.
下面结合附图来描述进气孔52和出气孔55的形成位置。The formation positions of the air inlet hole 52 and the air outlet hole 55 will be described below with reference to the drawings.
如图7至图9所示,换气组件5可以包括本体51,本体51安装在风道的第一部分A2上,进气孔52设置在本体51上。由此,通过调整本体51在风道的第一部分A2的安装位置,可以将从进气孔52导入的冷风引到第一部分A2合适的位置。具体的,本体51包括安装在第一部分A2上的安装板511,进气孔52设置在安装板511上。As shown in FIGS. 7 to 9, the ventilation assembly 5 may include a body 51 installed on the first part A2 of the air duct, and the air inlet 52 is provided on the body 51. Therefore, by adjusting the installation position of the main body 51 on the first part A2 of the air duct, the cold air introduced from the air inlet 52 can be guided to a suitable position of the first part A2. Specifically, the body 51 includes a mounting plate 511 mounted on the first part A2, and the air inlet 52 is provided on the mounting plate 511.
其中,出气孔55的设置位置包括但不限于如下可能的实现方式:Wherein, the setting position of the air outlet 55 includes but is not limited to the following possible implementations:
在一种可实现的方式中,出气孔55也可以设置在本体51上。具体的,出气孔55也设置在安装板511上。由此,通过调整本体51在风道的第一部分A2的安装位置,可以将从出气孔55排出的湿热空气引出到合适的位置。例如,本体51可以靠近箱体1的前侧壁设置,从而将湿热空气由箱体1的前侧壁导出。In an achievable manner, the air outlet 55 may also be provided on the body 51. Specifically, the air outlet 55 is also provided on the mounting plate 511. Therefore, by adjusting the installation position of the main body 51 on the first part A2 of the air duct, the hot and humid air discharged from the air outlet 55 can be drawn to a suitable position. For example, the main body 51 may be arranged close to the front side wall of the box body 1 so as to guide the hot and humid air from the front side wall of the box body 1.
而且,进气孔52与出气孔55可以一体形成在本体51上,也就是说,在本体51上可以同时加工形成进气孔52与出气孔55,避免了在热泵干衣机的箱体1上增设开口,从而可以简化加工工艺。Moreover, the air inlet 52 and the air outlet 55 can be integrally formed on the main body 51, that is, the air inlet 52 and the air outlet 55 can be formed on the main body 51 at the same time, which avoids the use of the heat pump dryer in the cabinet 1 An opening is added on the top to simplify the processing process.
在该示例中,本体51还包括设置在安装板511朝向第一部分A2内侧 的第一壁板512,第一壁板512用于承接由滚筒2的湿热风出口21排出的湿热空气;进气孔52和出气孔55并排设置在安装板511上,且出气孔55位于进气孔52靠近第一壁板512的一侧。此时,第一壁板512可以沿第一部分的径向设置,出气孔55设置在第一壁板512面向热风来向的一侧,进气孔52设置在出气孔55背离第一壁板512的一侧。In this example, the body 51 also includes a first wall plate 512 arranged on the mounting plate 511 toward the inner side of the first part A2, the first wall plate 512 is used to receive the hot and humid air discharged from the hot and humid air outlet 21 of the drum 2; The air outlet 52 and the air outlet 55 are arranged side by side on the mounting plate 511, and the air outlet 55 is located on the side of the air inlet 52 close to the first wall plate 512. At this time, the first wall plate 512 can be arranged along the radial direction of the first part, the air outlet 55 is arranged on the side of the first wall plate 512 facing the hot air, and the air inlet 52 is arranged on the air outlet 55 away from the first wall plate 512. On the side.
这样设置,从滚筒2的湿热风出口21排出的湿热空气可以冲击第一壁板512,冲击第一壁板512的部分湿热空气可以沿着第一壁板512流动至出气孔55并排出,利用第一壁板512将部分湿热空气导至出气孔55,起到了导风作用。而位于出气孔55一侧的进气孔52受到风机3负压的作用可以向第一部分A2内导入冷风。With this arrangement, the hot and humid air discharged from the hot and humid air outlet 21 of the drum 2 can impact the first wall plate 512, and part of the hot and humid air impacting the first wall plate 512 can flow along the first wall plate 512 to the air outlet 55 and be discharged. The first wall plate 512 guides part of the hot and humid air to the air outlet 55, which acts as a wind guide. The air inlet 52 located on the side of the air outlet 55 is subjected to the negative pressure of the fan 3 to introduce cold air into the first part A2.
在另一种可实现的方式中,出气孔55可以形成在热泵干衣机的前支撑7上。由此,由于第一部分A2形成在前支撑7上,则形成在前支撑7上的出气孔55直接与湿热风出口21连通,因此出气孔55的位置可以不受风压影响,出风效果好。本实施例对出气孔55在前支撑7上的位置不做限制,例如可以位于前支撑7在滚筒2的后侧壁上、前支撑7背离滚筒2的前侧壁上,或者位于滚筒2的后侧壁和前侧壁之间的连接侧壁。In another achievable manner, the air outlet 55 may be formed on the front support 7 of the heat pump clothes dryer. Therefore, since the first part A2 is formed on the front support 7, the air outlet 55 formed on the front support 7 directly communicates with the hot and humid air outlet 21, so the position of the air outlet 55 can be unaffected by wind pressure, and the air outlet effect is good . In this embodiment, the position of the air outlet 55 on the front support 7 is not limited. For example, it may be located on the front support 7 on the rear side wall of the drum 2, the front support 7 on the front side wall facing away from the drum 2, or on the front side wall of the drum 2. The connecting side wall between the rear side wall and the front side wall.
其中,第一部分A2可以呈整体式设置,此时第一部分A2可以呈弧形,弧形第一部分A2能够顺畅的进行导风。或者,在一些实施例中,如图7和图8所示,第一部分A2还可以分段设置,第一部分A2具体的包括第一段A21和第二段A22,第一段A21沿垂直于滚筒2轴线的方向延伸,第二段A22沿平行于滚筒2的轴线方向延伸,第一段A21和第二段A22均贴合箱体1的内壁设置。由此,能够有效的利用热泵干衣机箱体1内的空间。此时,出气孔55可以形成在第一段A21、第二段A22或者第一段A21与第二段A22的相交处。Among them, the first part A2 may be integrally arranged. At this time, the first part A2 may be arc-shaped, and the arc-shaped first part A2 can conduct wind smoothly. Or, in some embodiments, as shown in Figures 7 and 8, the first section A2 can also be arranged in sections. The first section A2 specifically includes a first section A21 and a second section A22. The first section A21 is perpendicular to the drum The second section A22 extends in the direction parallel to the axis of the drum 2. The first section A21 and the second section A22 are both attached to the inner wall of the box body 1. As a result, the space in the heat pump dryer cabinet 1 can be effectively used. At this time, the air outlet 55 may be formed at the first section A21, the second section A22, or the intersection of the first section A21 and the second section A22.
当出气孔55设置在第一段A21或第二段A22上时,第一壁板512可以沿垂直于第一部分A2的壁面的径向设置,只要第一壁板512未封堵第一部分A2即可。When the air outlet 55 is provided on the first section A21 or the second section A22, the first wall plate 512 can be arranged in a radial direction perpendicular to the wall surface of the first section A2, as long as the first wall plate 512 does not block the first section A2. Can.
当出气孔55设置在第一段A21和第二段A22的相交处时,根据第一段A21的延伸方向不同,第一壁板512可以设置在不同位置处,请参阅图8,本体51可以包括第一壁板512、第二壁板513和连接第一壁板512与 第二壁板513的第三壁板,第一壁板512、第二壁板513和第三壁板均贴装在第一部分A2的内壁面上。第一壁板512、第二壁板513和第三壁板围成具有开口的腔体514,开口朝向滚筒2的湿热风出口21,腔体514沿滚筒2轴线方向的一端与蒸发器43的进气口连通,腔体514沿滚筒2轴线方向的另一端设置安装板511。When the air outlet 55 is provided at the intersection of the first section A21 and the second section A22, the first wall plate 512 can be set at different positions according to the extension direction of the first section A21. Please refer to FIG. 8, the body 51 may Including a first wall plate 512, a second wall plate 513 and a third wall plate connecting the first wall plate 512 and the second wall plate 513, the first wall plate 512, the second wall plate 513 and the third wall plate are all mounted On the inner wall of the first part A2. The first wall plate 512, the second wall plate 513, and the third wall plate enclose a cavity 514 with an opening facing the hot and humid air outlet 21 of the drum 2. The air inlet is connected, and the other end of the cavity 514 along the axis of the drum 2 is provided with a mounting plate 511.
当第一段A21沿竖直方向延伸时,热风冲击第三壁板,此时,进气孔52可以设置在出气孔55的上方或者进气孔52可以和出气孔55沿水平方向并排设置。When the first section A21 extends in the vertical direction, hot wind impacts the third wall plate. At this time, the air inlet 52 may be arranged above the air outlet 55 or the air inlet 52 and the air outlet 55 may be arranged side by side in the horizontal direction.
考虑到第一通孔71的两侧具有支撑滚筒2的支撑部,第一通孔71位于前支撑7的中部,而蒸发器43可以位于第一平面的一侧,第一段A21可以呈向热泵干衣机侧方延伸的倾斜状,此时热风可以冲击第一壁板512,进气孔52和出气孔55可以设置在第一壁板512或安装板511上。Considering that there are supporting parts on both sides of the first through hole 71 to support the roller 2, the first through hole 71 is located in the middle of the front support 7, and the evaporator 43 may be located on one side of the first plane, and the first section A21 may be The heat pump dryer extends in an oblique shape at the side. At this time, hot air can hit the first wall 512, and the air inlet 52 and the air outlet 55 can be provided on the first wall 512 or the mounting plate 511.
值得说明的是,前支撑7上还连接有安装部,此时,本体51能对安装部形成密封。其中,安装部可以是开设在第一部分A2上的通孔状结构,只要能稳固安装第一盖板53即可。It is worth noting that a mounting part is also connected to the front support 7. At this time, the body 51 can seal the mounting part. Wherein, the installation part may be a through-hole structure opened on the first part A2, as long as the first cover 53 can be firmly installed.
下面,仅以进气孔52和出气孔55设置在本体51为例进行说明,当本领域技术人员阅读了下面的技术方案后,显然可以理解进气孔52设置在本体上、出气孔55设置在前支撑7上的技术方案。In the following, only the air inlet 52 and the air outlet 55 are provided on the body 51 as an example for description. After reading the following technical solutions, those skilled in the art can clearly understand that the air inlet 52 is provided on the body and the air outlet 55 is provided. The technical solution on the front support 7.
继续参照图7至图9,换气组件5还可以包括第一盖板53、第二盖板56以及驱动器54,第一盖板53盖设在进气孔52处,第二盖板56盖设在出气孔55处,驱动器54用于可控的驱动第一盖板53运动以开闭进气孔52,以及用于可控的驱动第二盖板56运动以开闭出气孔55。由此,通过可控的开闭进气孔52和出气孔55,以使热泵干衣机适用于各种场景下。7-9, the ventilation assembly 5 may also include a first cover 53, a second cover 56 and a driver 54. The first cover 53 is provided at the air inlet 52, and the second cover 56 covers Located at the air outlet 55, the driver 54 is used to controllably drive the first cover 53 to open and close the air inlet 52, and to controllably drive the second cover 56 to move to open and close the air outlet 55. Therefore, the air inlet 52 and the air outlet 55 can be opened and closed in a controllable manner, so that the heat pump clothes dryer is suitable for various scenarios.
示例性地,在烘干前期,驱动器54驱动第一盖板53关闭进气孔52、驱动第二盖板56关闭出气孔55,避免进入蒸发器43的进气口的湿热空气降温,继而避免烘干效率降低;在烘干后期,驱动器54驱动第一盖板53打开进气孔52、驱动第二盖板56打开出气孔55,以降低压缩机41的排气温度,从而避免压缩机41因高负荷而频繁启停。Exemplarily, in the early stage of drying, the driver 54 drives the first cover plate 53 to close the air inlet 52 and drives the second cover plate 56 to close the air outlet 55, so as to prevent the hot and humid air entering the air inlet of the evaporator 43 from cooling down, and then avoid The drying efficiency is reduced; in the later stage of drying, the driver 54 drives the first cover 53 to open the air inlet 52 and the second cover 56 to open the air outlet 55 to reduce the discharge temperature of the compressor 41, thereby avoiding the compressor 41 Frequent start and stop due to high load.
其中,第一盖板53的面积大于进气孔52的面积,第一盖板53与安装板511上进气孔52周围的壁面贴合,为优化封闭效果。进一步地,第 一盖板53朝向本体51的表面还可以设置有第一密封件,第一密封件用于密封进气孔52。由此,第一密封件可以压紧在第一盖板53与本体51之间,提高了进气孔52的密封性,以在进气孔52关闭时,降低湿热空气从第一盖板53与安装板511之间的间隙流出的可能性。Wherein, the area of the first cover plate 53 is larger than the area of the air inlet hole 52, and the first cover plate 53 is attached to the wall surface around the air inlet hole 52 on the mounting plate 511 to optimize the sealing effect. Further, the surface of the first cover plate 53 facing the main body 51 may also be provided with a first sealing member for sealing the air inlet 52. As a result, the first sealing member can be pressed between the first cover 53 and the body 51, which improves the sealing performance of the air inlet 52, so that when the air inlet 52 is closed, the hot and humid air from the first cover 53 can be reduced. The gap with the mounting plate 511 may flow out.
第二盖板56的面积也可以大于出气孔55的面积,第二盖板56与安装板511上出气孔55周围的壁面贴合,为优化封闭效果。进一步地,第二盖板56朝向本体51的表面也设置有第二密封件,第二密封件用于密封出气孔55。由此,第二密封件可以压紧在第二盖板56与本体51之间,提高了出气孔55的密封性,以在出气孔55关闭时,降低湿热空气从第二盖板56与安装板511之间的间隙流出的可能性。The area of the second cover plate 56 may also be larger than the area of the air outlet 55, and the second cover plate 56 is attached to the wall surface around the air outlet 55 on the mounting plate 511 to optimize the sealing effect. Further, the surface of the second cover plate 56 facing the main body 51 is also provided with a second sealing member, and the second sealing member is used to seal the air outlet 55. Thereby, the second sealing member can be compressed between the second cover 56 and the main body 51, which improves the sealing performance of the air outlet 55, so that when the air outlet 55 is closed, the hot and humid air is reduced from the second cover 56 and the installation. The gap between the plates 511 may flow out.
值得指出的是,第一密封件和第二密封件可以是本领域技术人员熟知的橡胶圈。It is worth noting that the first sealing element and the second sealing element may be rubber rings well known to those skilled in the art.
第一盖板53可以安装在第一部分A2的外壁面上,为避免第一盖板53打开时,第一盖板53凸出热泵干衣机的箱体1。第一盖板53的运动形式可以为平移,也可以为转动,根据第一盖板53不同的运动形式,驱动器54可以是电机、气缸、油缸等。The first cover 53 may be installed on the outer wall surface of the first part A2, in order to prevent the first cover 53 from protruding from the cabinet 1 of the heat pump clothes dryer when the first cover 53 is opened. The movement form of the first cover plate 53 can be translation or rotation. According to the different movement forms of the first cover plate 53, the driver 54 can be a motor, an air cylinder, an oil cylinder, or the like.
例如,第一盖板53的一侧具有可转动连接在本体51上的第一转轴531,驱动器54为电机,电机轴与第一转轴531传动连接,电机驱动第一盖板53绕第一转轴531转动进而打开或者关闭进气孔52。For example, one side of the first cover plate 53 has a first rotating shaft 531 rotatably connected to the body 51, the driver 54 is a motor, and the motor shaft is drivingly connected to the first rotating shaft 531, and the motor drives the first cover plate 53 around the first rotating shaft. 531 rotates to open or close the air inlet 52.
进一步地,驱动器54用于驱动第一盖板53朝向第一部分A2的内部进行转动。由于第一部分A2的外壁面与热泵干衣机的箱体1之间的间隙较小,这样设置,可以避免第一盖板53转动过程中与箱体1发生干涉而导致进气孔52无法完全开启。Further, the driver 54 is used to drive the first cover 53 to rotate toward the inside of the first part A2. Since the gap between the outer wall surface of the first part A2 and the box 1 of the heat pump clothes dryer is small, this arrangement can avoid interference with the box 1 during the rotation of the first cover 53 and the air inlet 52 cannot be completed. Turn on.
此外,驱动器54可以设置在第一部分A2的外部,从而可以避免驱动器54占用部分第一部分A2而导致风阻增加。In addition, the driver 54 can be arranged outside the first part A2, so that the driver 54 can avoid occupying a part of the first part A2 and causing the wind resistance to increase.
第二盖板56也可以安装在第一部分A2的外壁面上,为避免第二盖板56打开时,第二盖板56凸出热泵干衣机的箱体1。第二盖板56与第一盖板53类似,第二盖板56的运动形式也可以为平移或者转动。The second cover 56 may also be installed on the outer wall surface of the first part A2, in order to prevent the second cover 56 from protruding from the cabinet 1 of the heat pump clothes dryer when the second cover 56 is opened. The second cover 56 is similar to the first cover 53, and the movement form of the second cover 56 can also be translation or rotation.
例如,第二盖板56的一侧具有可转动连接在本体51上的第二转轴561,驱动器54与第二转轴561连接,用于驱动第二盖板56绕第二转轴561转动进而打开或关闭出气孔55。For example, one side of the second cover 56 has a second rotating shaft 561 rotatably connected to the body 51, and the driver 54 is connected to the second rotating shaft 561 for driving the second cover 56 to rotate around the second rotating shaft 561 to open or Close the vent 55.
当然,驱动器54也可以驱动第二盖板56朝向第一部分A2的内部进行转动,以免第二盖板56转动过程中与箱体1发生干涉而导致出气孔55无法完全开启。Of course, the driver 54 can also drive the second cover 56 to rotate toward the inside of the first part A2, so as to prevent the second cover 56 from interfering with the box body 1 during the rotation of the second cover 56 to prevent the air outlet 55 from being completely opened.
这里,需要说明的是,可以设置两个独立的驱动器54分别驱动第一盖板53和第二盖板56运动。由此,通过分别控制两个独立的驱动器54,可以单独驱动第一盖板53和第二盖板56运动,以使得进气孔52和出气孔55存在多种开闭情形。示例性地,进气孔52和出气孔55的开闭情形分为以下几种:进气孔52打开、出气孔55关闭,进气孔52和出气孔55同时打开,进气孔52关闭、出气孔55打开,进气孔52和出气孔55同时关闭。Here, it should be noted that two independent drivers 54 can be provided to drive the first cover plate 53 and the second cover plate 56 to move respectively. Therefore, by separately controlling the two independent drivers 54, the first cover 53 and the second cover 56 can be driven to move separately, so that the air inlet 52 and the air outlet 55 can be opened and closed in various situations. Exemplarily, the opening and closing situations of the air inlet 52 and the air outlet 55 are divided into the following types: the air inlet 52 is opened, the air outlet 55 is closed, the air inlet 52 and the air outlet 55 are opened at the same time, and the air inlet 52 is closed, The air outlet 55 is opened, and the air inlet 52 and the air outlet 55 are closed at the same time.
可替代的,第一盖板53和第二盖板56也可以通过同一个驱动器54联动控制。由此,当驱动器54的个数为一个时,可以同时打开或同时关闭进气孔52和出气孔55,从而无需对两个驱动器54分别进行控制,操作简便。Alternatively, the first cover plate 53 and the second cover plate 56 can also be linked and controlled by the same driver 54. Therefore, when the number of the drivers 54 is one, the air inlet 52 and the air outlet 55 can be opened or closed at the same time, so that there is no need to control the two drivers 54 separately, and the operation is simple and convenient.
为了使驱动器54能够同时驱动第一盖板53和第二盖板56运动,以同时打开进气孔52和出气孔55,换气组件5还可以包括连接第一盖板53和第二盖板56的连杆组件,驱动器54与连杆组件、第一转轴531、第二转轴561中的任一者连接。In order to enable the driver 54 to simultaneously drive the first cover plate 53 and the second cover plate 56 to move to open the air inlet 52 and the air outlet 55 at the same time, the ventilation assembly 5 may further include a connection between the first cover plate 53 and the second cover plate. In the linkage assembly of 56, the driver 54 is connected to any one of the linkage assembly, the first rotating shaft 531 and the second rotating shaft 561.
图10为本发明提供的一种热泵干衣机中换气组件的一种驱动结构示意图。在本发明的一个可选示例中,如图10所示,当第一转轴531位于第一盖板53的一端,第二转轴561也位于第二盖板56的一端时,第一盖板53和第二盖板56可以沿同一方向转动。Fig. 10 is a schematic diagram of a driving structure of a ventilation component in a heat pump clothes dryer provided by the present invention. In an optional example of the present invention, as shown in FIG. 10, when the first rotating shaft 531 is located at one end of the first cover plate 53, and the second rotating shaft 561 is also located at one end of the second cover plate 56, the first cover plate 53 And the second cover 56 can rotate in the same direction.
在该示例中,连杆组件可以包括连接第一转轴531和第二转轴561的连接杆,连接杆连接在第一转轴531和第二转轴561的端面上,且连接杆不与第一转轴531和第二转轴561的轴线相交。也就是说,第一转轴531、第二转轴561、连接杆以及第一部分A2可以构成平行四边形连杆机构。由此,可以实现第一盖板53和第二盖板56同时转动。In this example, the connecting rod assembly may include a connecting rod connecting the first rotating shaft 531 and the second rotating shaft 561. The connecting rod is connected to the end surfaces of the first rotating shaft 531 and the second rotating shaft 561, and the connecting rod is not connected to the first rotating shaft 531. Intersect the axis of the second rotating shaft 561. In other words, the first rotating shaft 531, the second rotating shaft 561, the connecting rod, and the first part A2 may constitute a parallelogram linkage mechanism. As a result, the first cover plate 53 and the second cover plate 56 can be rotated at the same time.
图11为本发明提供的一种热泵干衣机中换气组件的另一种驱动结构示意图。在本发明的另一个可选示例中,如图11所示,当第一转轴531位于进气孔52背离出气孔55的一侧,第二转轴561位于出气孔55背离进气孔52的一侧时,第一盖板53和第二盖板56可以绕相反的方向转动。Fig. 11 is a schematic diagram of another driving structure of a ventilation assembly in a heat pump clothes dryer provided by the present invention. In another optional example of the present invention, as shown in FIG. 11, when the first rotating shaft 531 is located on the side of the air inlet 52 away from the air outlet 55, the second rotating shaft 561 is located on the side of the air outlet 55 away from the air inlet 52. When side, the first cover plate 53 and the second cover plate 56 can rotate in opposite directions.
在该示例中,连杆组件可以包括与本体51相连的第三转轴57以及连接在第三转轴57端面上的第一连杆58、第二连杆59,第三转轴57位于进气孔52和出气孔55之间;第一连杆58背离第三转轴57的一端与第一转轴531的端面连接,第二连杆59背离第三转轴57的一端与第二转轴561的端面连接;驱动器54与第三转轴57传动连接,以驱动第三转轴57旋转,进而带动第一连杆58和第二连杆59运动,从而同时推动第一转轴531和第二转轴561转动,以同时打开进气孔52和出气孔55。In this example, the connecting rod assembly may include a third rotating shaft 57 connected to the body 51, and a first connecting rod 58 and a second connecting rod 59 connected to the end surface of the third rotating shaft 57, and the third rotating shaft 57 is located in the air inlet 52. The end of the first connecting rod 58 away from the third rotating shaft 57 is connected to the end surface of the first rotating shaft 531, and the end of the second connecting rod 59 away from the third rotating shaft 57 is connected to the end surface of the second rotating shaft 561; the driver 54 is in transmission connection with the third rotating shaft 57 to drive the third rotating shaft 57 to rotate, thereby driving the first connecting rod 58 and the second connecting rod 59 to move, thereby simultaneously pushing the first rotating shaft 531 and the second rotating shaft 561 to rotate to simultaneously open the The air hole 52 and the air outlet 55.
其中,第三转轴57位于第一转轴531和第二转轴561之间,第三转轴57可以和第一转轴531及第二转轴561不位于同一平面内。较佳地,第三转轴57和第一转轴531及第二转轴561位于同一平面内。由此,便于加工制造,同时节省了热泵干衣机的内部空间,以为其它部件腾出更多的安装空间。The third rotating shaft 57 is located between the first rotating shaft 531 and the second rotating shaft 561, and the third rotating shaft 57 may not be located in the same plane as the first rotating shaft 531 and the second rotating shaft 561. Preferably, the third rotating shaft 57 and the first rotating shaft 531 and the second rotating shaft 561 are located in the same plane. Therefore, it is easy to process and manufacture, and at the same time, the internal space of the heat pump clothes dryer is saved, so as to free up more installation space for other components.
第一连杆58连接第一转轴531和第三转轴57,第二连杆59连接第二转轴561和第三转轴57。为了实现第一盖板53和第二盖板56同时转动,第一连杆58、第一转轴531、第三转轴57和第一部分A2构成第一四连杆机构,第二连杆59、第二转轴561、第三转轴57和第一部分A2构成第二四连杆机构,第一四连杆机构和第二四连杆机构中的一者为正平行四边形连杆结构,另一者为反平行四边形连杆结构,以实现第一盖板53和第二盖板56绕相反方向的转动。The first connecting rod 58 connects the first rotating shaft 531 and the third rotating shaft 57, and the second connecting rod 59 connects the second rotating shaft 561 and the third rotating shaft 57. In order to realize the simultaneous rotation of the first cover plate 53 and the second cover plate 56, the first link 58, the first shaft 531, the third shaft 57 and the first part A2 constitute a first four-bar linkage mechanism. The second rotating shaft 561, the third rotating shaft 57 and the first part A2 constitute a second four-bar linkage mechanism, one of the first four-bar linkage mechanism and the second four-bar linkage mechanism is a regular parallelogram linkage structure, and the other is a reverse The parallelogram connecting rod structure realizes the rotation of the first cover plate 53 and the second cover plate 56 in opposite directions.
在上述实施例中,第一转轴531、第二转轴561和第三转轴57的材质可以为POM或尼龙等,能够形成自润滑且耐磨损。In the above embodiment, the material of the first rotating shaft 531, the second rotating shaft 561, and the third rotating shaft 57 may be POM, nylon, etc., which can be self-lubricating and wear-resistant.
在上述实施例的基础上,本体51上还可以设有用于过滤湿热空气中杂物的第一过滤器9,第一过滤器9安装在本体51朝向滚筒2的湿热风出口21的一端,从湿热风出口21排出的湿热空气经第一过滤器9过滤后,一部分过滤后的湿热空气经出气孔55排出第一部分A2,另一部分过滤后的湿热空气进入蒸发器43。由此,干热空气将滚筒2内湿衣物的水气化后 变成湿热空气,湿热空气扬起部分衣物上的毛絮等杂物进入第一部分A2,通过设置第一过滤器9,避免毛絮等杂物进入蒸发器43内导致蒸发器43的气体流道和管道堵塞。其中,第一过滤器9可以为过滤网,或者为本领域技术人员熟知的线屑过滤器。On the basis of the above-mentioned embodiment, the body 51 may also be provided with a first filter 9 for filtering impurities in the hot and humid air. The first filter 9 is installed at the end of the body 51 facing the hot and humid air outlet 21 of the drum 2, from After the hot and humid air discharged from the hot and humid air outlet 21 is filtered by the first filter 9, a part of the filtered hot and humid air exits the first part A2 through the air outlet 55, and the other part of the filtered hot and humid air enters the evaporator 43. As a result, the hot and dry air vaporizes the water in the wet clothes in the drum 2 into hot and humid air. The hot and humid air lifts up some of the lint on the clothes and enters the first part A2. The first filter 9 is provided to avoid the hair. Foreign matter such as flocs enters the evaporator 43 and causes the gas flow channel and pipe of the evaporator 43 to be blocked. Among them, the first filter 9 may be a filter mesh, or a lint filter well known to those skilled in the art.
较佳地,本体51可拆卸地安装于风道的第一部分A2。由此,方便将本体51从风道上拆卸下来,进而便于对本体51进行维修和更换。进一步地,可以将第一过滤器9从本体51上拆卸下来,便于清理第一过滤器9上滤除的杂物,以确保第一过滤器9有效的工作。例如,本体51可以与风道通过卡接或者螺接的方式进行连接。Preferably, the main body 51 is detachably mounted on the first part A2 of the air duct. Therefore, it is convenient to disassemble the main body 51 from the air duct, thereby facilitating maintenance and replacement of the main body 51. Further, the first filter 9 can be detached from the main body 51 to facilitate cleaning of the impurities filtered off on the first filter 9 to ensure the effective operation of the first filter 9. For example, the main body 51 can be connected to the air duct by means of snap connection or screw connection.
进一步地,热泵干衣机还可以包括第二过滤器,第二过滤器可以设置在第一通孔71或者第一段A21上,以免湿热空气中的杂物从第一通孔71或第一段A21流出。第二过滤器和第一过滤器9类似,也可以为过滤网或线屑过滤器。Further, the heat pump clothes dryer may further include a second filter, and the second filter may be arranged on the first through hole 71 or the first section A21 to prevent the sundries in the humid and hot air from passing through the first through hole 71 or the first section A21. Section A21 flows out. The second filter is similar to the first filter 9, and can also be a filter screen or a lint filter.
需要指出的是,当换气组件设置在第一段A21和第二段A22相交位置处时,驱动器可以设置在前支撑7与箱体1的底侧板之间的间隙内,驱动器的输出轴沿竖直方向贯穿第一部分的侧壁并伸入到第一部分内,第三转轴57与输出轴可拆卸连接,便于拿取本体51以及安装在本体51上的第一过滤器9和第二过滤器。It should be pointed out that when the ventilation assembly is set at the intersection of the first section A21 and the second section A22, the driver can be set in the gap between the front support 7 and the bottom side plate of the box 1. The output shaft of the driver Passing through the side wall of the first part in the vertical direction and extending into the first part, the third rotating shaft 57 is detachably connected with the output shaft, which is convenient to take the main body 51 and the first filter 9 and the second filter installed on the main body 51 Device.
为了对进气孔52和/或出气孔55实现自动启闭,热泵干衣机还包括控制装置,控制装置与换气组件5连接,控制装置用于控制换气组件5启闭进气孔52和/或启闭出气孔55。其中,控制装置可以为ICU(Inner Control Unit,内制控制单元)、也可以为PLC(Programmable Logic Controller,可编程检测控制器)或者为单片机。具体而言,控制装置与驱动器54电连接,控制装置通过控制驱动器54来实现进气孔52和/或出气孔55的启闭。当第一盖板53和第二盖板56通过两个独立的驱动器54分别控制时,控制装置分别控制两个驱动器54以驱动第一盖板53运动以开闭进气孔52,以及驱动第二盖板56运动以启闭出气孔55。当第一盖板53和第二盖板56通过同一个驱动器54联动控制时,控制装置控制这一个驱动器54以驱动第一盖板53和第二盖板56运动,以同时打开或关闭进气孔52和出气孔55。In order to automatically open and close the air inlet 52 and/or the air outlet 55, the heat pump dryer also includes a control device, which is connected to the ventilation assembly 5, and the control device is used to control the ventilation assembly 5 to open and close the air inlet 52 And/or open and close the vent 55. Among them, the control device may be an ICU (Inner Control Unit), a PLC (Programmable Logic Controller, programmable detection controller), or a single-chip microcomputer. Specifically, the control device is electrically connected to the driver 54, and the control device controls the driver 54 to realize the opening and closing of the air inlet 52 and/or the air outlet 55. When the first cover 53 and the second cover 56 are respectively controlled by two independent drivers 54, the control device respectively controls the two drivers 54 to drive the first cover 53 to move to open and close the air inlet 52, and to drive the first cover 53 The two cover plates 56 move to open and close the air outlet 55. When the first cover plate 53 and the second cover plate 56 are linked by the same driver 54, the control device controls the one driver 54 to drive the first cover plate 53 and the second cover plate 56 to move to open or close the air intake at the same time Hole 52 and vent 55.
可选地,热泵干衣机可以包括计时器,计时器用于对滚筒2的转动时间进行计时,控制装置用于在计时器计算的滚筒2的转动时间达到设定时间时,控制换气组件5将风道外的冷风引入第一部分A2内,以及控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2。由此,当热泵干衣机工作时间达到设定时间,进入烘干后期时,通过对换气组件5的控制以降低第一部分A2内湿热空气的温度,以降低压缩机41的排气温度。其中,设定时间可以由本领域技术人员根据实际需要和热泵干衣机的具体型号进行自由设定。例如,滚筒2累计转动30分钟后,热泵干衣机进入烘干后期,即衣物的湿度已经大幅降低,湿热风出口21排出的湿热空气的温度明显增加时,则设定时间可以设为30分钟。Optionally, the heat pump clothes dryer may include a timer. The timer is used to time the rotation time of the drum 2, and the control device is used to control the ventilation assembly 5 when the rotation time of the drum 2 calculated by the timer reaches a set time. The cold air outside the air duct is introduced into the first part A2, and the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2. Therefore, when the working time of the heat pump dryer reaches the set time and enters the late drying stage, the ventilation assembly 5 is controlled to reduce the temperature of the hot and humid air in the first part A2, so as to reduce the discharge temperature of the compressor 41. Among them, the setting time can be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer. For example, after the drum 2 has rotated for 30 minutes, the heat pump dryer enters the late drying stage, that is, the humidity of the clothes has been greatly reduced, and the temperature of the hot and humid air discharged from the hot and humid air outlet 21 has increased significantly, the set time can be set to 30 minutes .
可替代的,热泵干衣机还可包括与控制装置电连接的温度检测装置,温度检测装置用于检测热泵系统4的工作温度,控制装置用于在温度检测装置检测到的温度大于预设温度时,控制换气组件5将风道外的冷风引入第一部分A2内,以及控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2。由此,当热泵系统4的工作温度高于预设温度时,通过对换气组件5的控制以降低第一部分A2内湿热空气的温度,进而降低压缩机41的排气温度,避免压缩机41频繁启停导致烘干效率低。而且,相较于上一实现方式,该配置可以更精确的在热泵系统4的工作温度较高导致压缩机41高负荷工作时,控制换气组件5来降低第一部分A2内湿热空气的温度。其中,温度检测装置可以为温度传感器或者红外热偶计。Alternatively, the heat pump clothes dryer may further include a temperature detection device electrically connected to the control device. The temperature detection device is used to detect the working temperature of the heat pump system 4, and the control device is used to detect when the temperature detected by the temperature detection device is greater than the preset temperature. At this time, the ventilation component 5 is controlled to introduce the cold air outside the air duct into the first part A2, and the ventilation component 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2. Therefore, when the working temperature of the heat pump system 4 is higher than the preset temperature, the temperature of the moist and hot air in the first part A2 is reduced by controlling the ventilating assembly 5, thereby reducing the discharge temperature of the compressor 41 and avoiding the compressor 41 Frequent start and stop results in low drying efficiency. Moreover, compared with the previous implementation, this configuration can more accurately control the ventilating assembly 5 to reduce the temperature of the hot and humid air in the first part A2 when the high working temperature of the heat pump system 4 causes the compressor 41 to work at a high load. Among them, the temperature detection device may be a temperature sensor or an infrared thermocouple meter.
其中,温度检测装置可以用于检测风道的温度。由此,通过获知风道内空气的温度,从而可以大致判断得出压缩机41的工作状况,当风道内空气的温度较高时,压缩机41可能处于高负荷状态,通过换气组件5来降低风道内空气的温度,避免压缩机41停机。Among them, the temperature detection device can be used to detect the temperature of the air duct. Therefore, by knowing the temperature of the air in the air duct, the working condition of the compressor 41 can be roughly judged. When the temperature of the air in the air duct is high, the compressor 41 may be in a high load state, which is reduced by the ventilation assembly 5. The temperature of the air in the air duct prevents the compressor 41 from shutting down.
温度检测装置可以包括第一温度检测装置,第一温度检测装置用于检测蒸发器43的进气口的温度,控制装置用于在第一温度检测装置检测到的温度大于第一预设温度时,控制换气组件5将风道外的冷风引入第一部分A2内,以及将风道的第一部分A2内的一些湿热空气排出第一部分A2。由此,可以利用第一温度检测装置自动监测进入蒸发器43的湿热空气的温度,进而可以及早发现压缩机41的排气温度升高,并采取解决措施, 以避免压缩机41停机。其中,本实施例对第一预设温度不做限制,可以由本领域的技术人员根据实际需要和热泵干衣机的具体型号进行自由设定。较佳地,第一预设温度在70℃~80℃之间。The temperature detection device may include a first temperature detection device, the first temperature detection device is used to detect the temperature of the air inlet of the evaporator 43, and the control device is used when the temperature detected by the first temperature detection device is greater than the first preset temperature , The control ventilation assembly 5 introduces the cold air outside the air duct into the first part A2, and discharges some hot and humid air in the first part A2 of the air duct out of the first part A2. As a result, the first temperature detection device can be used to automatically monitor the temperature of the hot and humid air entering the evaporator 43, so that an increase in the discharge temperature of the compressor 41 can be detected early, and countermeasures can be taken to prevent the compressor 41 from shutting down. Among them, this embodiment does not limit the first preset temperature, and can be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer. Preferably, the first preset temperature is between 70°C and 80°C.
同理,温度检测装置还可以包括第二温度检测装置,第二温度检测装置用于检测冷凝器42的出气口的温度,控制装置用于在第二温度检测装置检测到的温度大于第二预设温度时,控制换气组件5将风道外的冷风引入第一部分A2内,以及将风道的第一部分A2内的一些湿热空气排出第一部分A2。由此,可以利用第二温度检测装置自动监测冷凝器42的出气口排出的干热空气的温度,当干热空气的温度过高时,干热空气在滚筒2内与湿衣物进行热交换后得到较高温度的湿热空气,因此可以及早发现压缩机41的排气温度升高,并采取解决措施,以避免压缩机41停机。其中,第二预设温度大于第一预设温度,第二预设温度也可以由本领域的技术人员根据实际需要和热泵干衣机的具体型号进行自由设定。较佳地,第二预设温度在90℃~100℃之间。Similarly, the temperature detection device may also include a second temperature detection device, the second temperature detection device is used to detect the temperature of the air outlet of the condenser 42, and the control device is used to detect when the temperature detected by the second temperature detection device is greater than the second preset temperature. When the temperature is set, the ventilating assembly 5 is controlled to introduce the cold air outside the air duct into the first part A2, and to discharge some hot and humid air in the first part A2 of the air duct out of the first part A2. Therefore, the second temperature detection device can be used to automatically monitor the temperature of the hot dry air discharged from the air outlet of the condenser 42. When the temperature of the hot dry air is too high, the hot dry air exchanges heat with the wet clothes in the drum 2 To obtain hot and humid air at a higher temperature, it is possible to detect an increase in the exhaust temperature of the compressor 41 as early as possible, and take measures to prevent the compressor 41 from shutting down. Wherein, the second preset temperature is greater than the first preset temperature, and the second preset temperature can also be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer. Preferably, the second preset temperature is between 90°C and 100°C.
本发明不限于此,温度检测装置还可以包括第三温度检测装置,第三温度检测装置用于检测压缩机41的出气口的温度,控制装置用于在第三温度检测装置检测到的温度大于第三预设温度时,控制换气组件5将风道外的冷风引入第一部分A2内,以及将风道的第一部分A2内的一些湿热空气排出第一部分A2。由此,可以利用第三温度检测装置自动监测压缩机41的排气温度,进而可以及早发现压缩机41的排气温度升高,并采取解决措施,以避免压缩机41停机。而且,相较于上两种方式,可以更准确的获取压缩机41的工作状况。其中,本实施例对第三预设温度不做限制,可以由本领域的技术人员根据实际需要和热泵干衣机的具体型号进行自由设定。较佳地,第三预设温度在60℃~70℃之间。The present invention is not limited to this. The temperature detection device may also include a third temperature detection device. The third temperature detection device is used to detect the temperature of the air outlet of the compressor 41, and the control device is used to detect when the temperature detected by the third temperature detection device is greater than At the third preset temperature, the ventilating assembly 5 is controlled to introduce the cold air outside the air duct into the first part A2, and to discharge some hot and humid air in the first part A2 of the air duct out of the first part A2. As a result, the third temperature detection device can be used to automatically monitor the discharge temperature of the compressor 41, so that an increase in the discharge temperature of the compressor 41 can be detected early, and countermeasures can be taken to prevent the compressor 41 from shutting down. Moreover, compared with the above two methods, the working condition of the compressor 41 can be obtained more accurately. Among them, this embodiment does not limit the third preset temperature, which can be freely set by those skilled in the art according to actual needs and the specific model of the heat pump dryer. Preferably, the third preset temperature is between 60°C and 70°C.
当然,上述配置方式并非是限制性地,温度检测装置还可以设置在第一部分A2的其他位置,用于检测第一部分A2内湿热空气的温度。例如,温度检测装置可以设置在前支撑7在滚筒2的后侧壁上、滚筒2上用于连接前侧壁和后侧壁的连接侧壁上。Of course, the above configuration is not restrictive, and the temperature detection device can also be arranged in other positions of the first part A2 to detect the temperature of the hot and humid air in the first part A2. For example, the temperature detecting device may be provided on the front support 7 on the rear side wall of the drum 2 and on the connecting side wall of the drum 2 for connecting the front side wall and the rear side wall.
在上述实施例中,热泵干衣机还包括设置在箱体1内的第一驱动电机6,第一驱动电机6通过传动装置与滚筒2进行连接,以驱动滚筒2进行 转动。其中,传动装置可以为链传动、带传动或者涡轮蜗杆传动。例如,传动装置包括皮带轮以及皮带,皮带轮与第一驱动电机6传动连接,皮带绕设在皮带轮和滚筒2上,从而将第一驱动电机6的动力传递给滚筒2。当然,第一驱动电机6也可以通过离合器与滚筒2传动连接,以驱动滚筒2转动。In the above embodiment, the heat pump clothes dryer further includes a first driving motor 6 arranged in the cabinet 1, and the first driving motor 6 is connected to the drum 2 through a transmission device to drive the drum 2 to rotate. Among them, the transmission device can be a chain drive, a belt drive or a worm gear drive. For example, the transmission device includes a pulley and a belt. The pulley is in transmission connection with the first driving motor 6. The belt is wound around the pulley and the drum 2 so as to transmit the power of the first driving motor 6 to the drum 2. Of course, the first driving motor 6 can also be connected to the drum 2 through a clutch to drive the drum 2 to rotate.
为了对热泵干衣机进行自动化控制,第一驱动电机6可以与控制装置电连接,控制装置通过第一驱动电机6控制滚筒2转动。进一步地,控制装置可以用于控制滚筒2周期性的正转和反转,并在滚筒2正转和反转切换的时候停止转动预设时间。由此,在烘干衣物的过程中,滚筒2可以正转后再反转,以抖散待烘干衣物,从而避免待烘干衣物打结;而且,停止转动为滚筒2由正转状态切换为反转状态提供了一个缓冲,以克服运动惯性。其中,滚筒2正转时间、停转时间和反转时间均可由技术人员根据实际需要进行自由设定,例如,正转时间和反转时间均在1~3分钟之间,停转时间在3s~5s之间。In order to automatically control the heat pump dryer, the first drive motor 6 may be electrically connected to a control device, and the control device controls the rotation of the drum 2 through the first drive motor 6. Further, the control device can be used to control the periodic forward and reverse rotation of the drum 2 and stop the rotation for a preset time when the drum 2 is switched between the forward rotation and the reverse rotation. Therefore, in the process of drying the clothes, the drum 2 can be rotated forward and then reversed, so as to shake the clothes to be dried, so as to prevent the clothes to be dried from being knotted; moreover, stopping the rotation means that the drum 2 is switched from the forward rotation state. A buffer is provided for the reverse state to overcome the motion inertia. Among them, the drum 2 forward rotation time, stop rotation time and reverse rotation time can be freely set by the technicians according to actual needs. For example, the forward rotation time and the reverse rotation time are both between 1 and 3 minutes, and the stop time is 3s. Between ~ 5s.
第一驱动电机6可选用三相异步电机,以驱动滚筒2进行正转和反转。由此,与设置两个电机分别驱动滚筒2正转和反转相比,可以避免电机占用箱体1内过多的空间,以为热泵系统4的其它部件腾出更多的安装空间,使热泵系统4可以选用尺寸较大的冷凝器42和蒸发器43,增加热泵系统4的换热能力,提高烘干效果。The first driving motor 6 can be a three-phase asynchronous motor to drive the drum 2 for forward rotation and reverse rotation. Therefore, compared with setting two motors to drive the drum 2 to rotate forward and reverse, it is possible to avoid the motor occupying too much space in the box 1, so as to free up more installation space for other components of the heat pump system 4, so that the heat pump The system 4 can use a larger condenser 42 and an evaporator 43 to increase the heat exchange capacity of the heat pump system 4 and improve the drying effect.
可选地,第一驱动电机6还可以与风机3连接,以同时驱动风机3转动。由此,可以减少电机的使用数量,从而使电机在箱体1内占用的空间减小。当然,上述配置方式并非是限制性地,热泵干衣机也可以单独设置有与风机3连接的第二驱动电机,用于单独驱动风机3。由此,滚筒2和风机3分别采用第一驱动电机6和第二驱动电机进行驱动,进而可以单独控制滚筒2和风机3,避免两者的运行状态相互影响。Optionally, the first driving motor 6 may also be connected to the fan 3 to simultaneously drive the fan 3 to rotate. As a result, the number of motors used can be reduced, so that the space occupied by the motors in the cabinet 1 is reduced. Of course, the above configuration is not restrictive, and the heat pump clothes dryer can also be separately provided with a second driving motor connected to the fan 3 for driving the fan 3 separately. Therefore, the drum 2 and the fan 3 are driven by the first driving motor 6 and the second driving motor, respectively, so that the drum 2 and the fan 3 can be controlled separately to avoid the mutual influence of the operating states of the two.
较佳地,控制装置也与第二驱动电机电连接,控制装置用于在滚筒2停止转动时,控制风机3正常运行。由此,滚筒2停止转动时,风机3的运行状态不会受影响,避免因滚筒2停转导致风机3停转而造成干衣速度降低。此外,控制装置还用于在滚筒2停止转动时,控制热泵系统4正常运行。由此,防止热泵系统4在烘干过程中在运行状态和停止运行状态之 间切换,以避免切换为运行状态时热泵系统4重新预热和加热而导致烘干效率降低。Preferably, the control device is also electrically connected with the second driving motor, and the control device is used to control the normal operation of the fan 3 when the drum 2 stops rotating. As a result, when the drum 2 stops rotating, the operating state of the fan 3 will not be affected, avoiding a reduction in the drying speed due to the stop of the fan 3 due to the stop of the drum 2. In addition, the control device is also used to control the normal operation of the heat pump system 4 when the drum 2 stops rotating. As a result, the heat pump system 4 is prevented from switching between the running state and the stopped running state during the drying process, so as to avoid the heat pump system 4 from re-heating and heating when switching to the running state, resulting in a decrease in the drying efficiency.
图12为本发明提供的另一种热泵干衣机的原理示意图。如图12所示,热泵干衣机还可包括加热件8,加热件8设置在冷凝器42的出气口与滚筒2的干热风进口之间,也就是设置在风道的第二部分A3内。如此设置,从冷凝器42的出气口排出的干热空气流经加热件8时可以进行二次加热,使得流入滚筒2内部的干热空气温度再次升高,从而加快烘干速度,提高了烘干效率。Fig. 12 is a schematic diagram of another heat pump clothes dryer provided by the present invention. As shown in Figure 12, the heat pump dryer may further include a heating element 8, which is arranged between the air outlet of the condenser 42 and the dry hot air inlet of the drum 2, that is, in the second part A3 of the air duct . With this arrangement, the hot dry air discharged from the air outlet of the condenser 42 can be reheated when it flows through the heating element 8, so that the temperature of the hot dry air flowing into the drum 2 rises again, thereby accelerating the drying speed and improving the drying rate. Dry efficiency.
可以理解的是,该配置尤其适用于烘干前期,热泵系统4运行的起始阶段,干热空气的温度上升速度低时,利用加热件8可以加快温度上升,以提高烘干效率,缩短烘干时间。其中,加热件8可以为电加热丝、内有换热介质流动的换热管、PCT发热体,或者为其他本领域技术人员所熟知的加热装置。此外,加热件8可以设置在滚筒2的桶底或者设置在滚筒2的内部,只要能使进入滚筒2内部的干热空气的温度升高即可。It is understandable that this configuration is especially suitable for the early stage of drying, the initial stage of the operation of the heat pump system 4, when the temperature rise rate of the dry hot air is low, the heating element 8 can speed up the temperature rise, so as to improve the drying efficiency and shorten the drying process. Dry time. Wherein, the heating element 8 can be an electric heating wire, a heat exchange tube with a flow of heat exchange medium, a PCT heating element, or other heating devices well known to those skilled in the art. In addition, the heating element 8 may be arranged at the bottom of the drum 2 or inside the drum 2, as long as the temperature of the dry hot air entering the drum 2 can be increased.
加热件8也可以与控制装置电连接,控制装置还用于周期性的控制滚筒2停转,并且,在滚筒2停转时,控制装置还控制加热件8停止加热。由此,避免滚筒2停转时加热件8持续加热而干烧,并且防止送入滚筒2内的干热空气的温度过高导致停留在滚筒2内的衣物被灼伤。The heating element 8 may also be electrically connected to a control device, which is also used to periodically control the drum 2 to stop rotating, and when the drum 2 stops rotating, the control device also controls the heating element 8 to stop heating. Thus, it is avoided that the heating element 8 continues to heat and dry when the drum 2 is stopped, and the temperature of the dry hot air sent into the drum 2 is prevented from being too high, causing the laundry staying in the drum 2 to be burned.
实施例二Example two
图13本发明提供的热泵干衣机控制方法的流程示意图一。如图1至图13所示,本实施例还提供了一种热泵干衣机的控制方法,其包括以下步骤:Fig. 13 is a schematic flow chart 1 of the control method of the heat pump clothes dryer provided by the present invention. As shown in Figures 1 to 13, this embodiment also provides a method for controlling a heat pump clothes dryer, which includes the following steps:
启动热泵干衣机;根据热泵系统4的工作温度,控制换气组件5将冷风引入到用于连接蒸发器43和滚筒2的湿热风出口21的一部分风道内;和/或,控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2。Start the heat pump dryer; according to the working temperature of the heat pump system 4, control the ventilation assembly 5 to introduce cold air into a part of the air duct connecting the evaporator 43 and the hot and humid air outlet 21 of the drum 2; and/or control the ventilation assembly 5 Exhaust some hot and humid air from the first part A2 out of the first part A2.
本实施例提供的热泵干衣机的控制方法根据热泵系统4的工作温度,控制换气组件5向第一部分A2内导入冷风和/或将第一部分A2内的部分湿热空气排出,以降低进入蒸发器43的湿热空气的温度,进而降低压缩机41的排气温度,从而避免压缩机41高负荷工作而频繁启停。The control method of the heat pump clothes dryer provided in this embodiment controls the ventilation assembly 5 to introduce cold air into the first part A2 and/or exhaust part of the hot and humid air in the first part A2 according to the working temperature of the heat pump system 4, so as to reduce the evaporation The temperature of the hot and humid air in the compressor 43 reduces the discharge temperature of the compressor 41, thereby avoiding the frequent start and stop of the compressor 41 during high-load operation.
下文结合热泵干衣机的结构简要介绍可能的一些控制方式,但这些控制方式不应视为是对本热泵干衣机控制方法的具体限制。Hereinafter, some possible control methods are briefly introduced in combination with the structure of the heat pump dryer, but these control methods should not be regarded as specific restrictions on the control method of the heat pump dryer.
图14为本发明提供的热泵干衣机控制方法的流程示意图二。其中,如图14所示,根据热泵系统4的工作温度,控制换气组件5将冷风引入到用于连接蒸发器43和滚筒2的湿热风出口21的一部分风道内;和/或,控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2的实现方式包括但不限于如下几种:Fig. 14 is a second flowchart of the method for controlling the heat pump clothes dryer provided by the present invention. Wherein, as shown in FIG. 14, according to the working temperature of the heat pump system 4, the air exchange assembly 5 is controlled to introduce cold air into a part of the air duct connecting the evaporator 43 and the hot and humid air outlet 21 of the drum 2; and/or, control the exchange The implementation manners for the air assembly 5 to discharge some hot and humid air in the first part A2 include but are not limited to the following:
一种可实现的方式中,获取蒸发器43的进气口的温度;判断蒸发器43的进气口的温度是否大于第一预设温度;若是,控制换气组件5将冷风引入到用于连接蒸发器43和滚筒2的湿热风出口21的一部分风道内;和/或,控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2。In an achievable way, obtain the temperature of the air inlet of the evaporator 43; determine whether the temperature of the air inlet of the evaporator 43 is greater than the first preset temperature; if so, control the ventilation assembly 5 to introduce cold air into the In a part of the air duct connecting the evaporator 43 and the hot and humid air outlet 21 of the drum 2; and/or, the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2.
另一种可实现的方式中,获取冷凝器42的出气口的温度;判断冷凝器42的出气口的温度是否大于第二预设温度;若是,控制换气组件5将冷风引入到用于连接蒸发器43和滚筒2的湿热风出口21的一部分风道内;和/或,控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2。In another achievable way, obtain the temperature of the air outlet of the condenser 42; determine whether the temperature of the air outlet of the condenser 42 is greater than the second preset temperature; The evaporator 43 and a part of the air duct of the hot and humid air outlet 21 of the drum 2; and/or, the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2.
再一种可实现的方式中,获取压缩机41的出气口的温度;判断压缩机41的出气口的温度是否大于第三预设温度;若是,控制换气组件5将冷风引入到用于连接蒸发器43和滚筒2的湿热风出口21的一部分风道内;和/或,控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2。In another achievable way, obtain the temperature of the air outlet of the compressor 41; determine whether the temperature of the air outlet of the compressor 41 is greater than the third preset temperature; if so, control the ventilation assembly 5 to introduce cold air to the connection The evaporator 43 and a part of the air duct of the hot and humid air outlet 21 of the drum 2; and/or, the ventilation assembly 5 is controlled to discharge some hot and humid air in the first part A2 out of the first part A2.
其中,控制换气组件5将冷风引入到用于连接蒸发器43和滚筒2的湿热风出口21的一部分风道内设置为具体包括:控制驱动器54驱动第一盖板53运动以打开进气孔52;控制换气组件5将第一部分A2内的一些湿热空气排出第一部分A2设置为具体包括:控制驱动器54驱动第二盖板56运动以打开出气孔55。Wherein, the control ventilation assembly 5 introduces cold air into a part of the air duct connecting the evaporator 43 and the hot and humid air outlet 21 of the drum 2 to specifically include: controlling the driver 54 to drive the first cover 53 to move to open the air inlet 52 The control of the ventilation assembly 5 to discharge some hot and humid air in the first part A2 out of the first part A2 specifically includes: controlling the driver 54 to drive the second cover 56 to move to open the air outlet 55.
当第一盖板53和第二盖板56通过两个独立的驱动器54分别控制时,分别控制两个驱动器54以开闭进气孔52和/或出气孔55;When the first cover plate 53 and the second cover plate 56 are controlled by two independent drivers 54 respectively, the two drivers 54 are respectively controlled to open and close the air inlet 52 and/or the air outlet 55;
当第一盖板53和第二盖板56通过同一驱动器54联动控制时,控制驱动器54可以同时打开或关闭进气孔52和出气孔55。When the first cover plate 53 and the second cover plate 56 are linked by the same driver 54, the control driver 54 can open or close the air inlet 52 and the air outlet 55 at the same time.
整体上来讲,启动热泵干衣机的过程可以分为节能模式和快速烘干模式,当用户选择节能模式或快速烘干模式时,热泵干衣机自动执行相应的控制方法。Generally speaking, the process of starting the heat pump dryer can be divided into an energy-saving mode and a fast drying mode. When the user selects the energy-saving mode or the fast drying mode, the heat pump dryer automatically executes the corresponding control method.
图15为本发明提供的热泵干衣机控制方法的流程示意图三。如图15所示,在节能模式下,启动热泵干衣机具体包括:Fig. 15 is the third flow diagram of the control method of the heat pump clothes dryer provided by the present invention. As shown in Figure 15, in the energy-saving mode, starting the heat pump dryer specifically includes:
控制滚筒2转动、风机3运行、热泵系统4工作,并且控制换气组件5不将风道外的冷风引入第一部分A2内,以及不将第一部分A2内的部分湿热空气排出第一部分A2。The drum 2 is controlled to rotate, the fan 3 is operated, and the heat pump system 4 is operated, and the ventilation assembly 5 is controlled not to introduce cold air outside the air duct into the first part A2, and not to discharge part of the hot and humid air in the first part A2 out of the first part A2.
根据滚筒2和风机3是否由同一个电机进行驱动,控制滚筒2转动、风机3运行可以依照先后顺序来执行、也可以同时执行。举例而言,当滚筒2和风机3同时由第一驱动电机6进行驱动时,则控制滚筒2转动的同时控制风机3运行。当滚筒2和风机3分别由第一驱动电机6和第二驱动电机进行驱动时,则可以先控制滚筒2进行转动,再控制风机3运行。由此,可以避免滚筒2和风机3同时启动,以阻止在启动的瞬间产生过大的冲击电流导致电路被损坏。According to whether the drum 2 and the fan 3 are driven by the same motor, the control of the rotation of the drum 2 and the operation of the fan 3 can be executed in sequence or simultaneously. For example, when the drum 2 and the fan 3 are driven by the first driving motor 6 at the same time, the rotation of the drum 2 is controlled while the fan 3 is controlled to operate. When the drum 2 and the fan 3 are driven by the first driving motor 6 and the second driving motor, respectively, the drum 2 can be controlled to rotate first, and then the fan 3 can be controlled to operate. As a result, it is possible to prevent the drum 2 and the fan 3 from starting at the same time, so as to prevent the excessive inrush current from being generated at the moment of starting and causing the circuit to be damaged.
其中,控制滚筒2转动具体包括为:控制滚筒2周期性的正转和反转,并在滚筒2正转和反转切换的时候停止转动预设时间。应当理解的是,当滚筒2和风机3分别由第一驱动电机6和第二驱动电机进行驱动时,在滚筒2停止转动的时候,风机3可以通过控制装置对第二驱动电机的控制保持运行状态。由此,避免风机3受滚筒2的影响停止运行,导致烘干速度降低。Wherein, controlling the rotation of the drum 2 specifically includes: controlling the periodic forward and reverse rotation of the drum 2 and stopping the rotation for a preset time when the drum 2 is switched between the forward rotation and the reverse rotation. It should be understood that when the drum 2 and the fan 3 are driven by the first drive motor 6 and the second drive motor, respectively, when the drum 2 stops rotating, the fan 3 can keep running through the control of the second drive motor by the control device. state. Therefore, it is avoided that the fan 3 stops running under the influence of the drum 2, which causes the drying speed to decrease.
较佳地,在控制滚筒2转动、风机3运行之后,再控制热泵系统4工作。由此,避免热泵系统4与其同时启动,以阻止在启动的瞬间产生过大的冲击电流导致电路被损坏。可以理解的是,在滚筒2停止转动的时候,热泵系统4可以通过控制装置控制其保持工作。由此,可以避免热泵系统4由停止工作状态切换为工作状态后需要重新预热和加热,导致烘干时间长。Preferably, after controlling the rotation of the drum 2 and the operation of the fan 3, the heat pump system 4 is controlled to work. As a result, the heat pump system 4 is prevented from starting at the same time, so as to prevent the excessive inrush current from being generated at the moment of starting to cause the circuit to be damaged. It is understandable that when the drum 2 stops rotating, the heat pump system 4 can be controlled by the control device to keep working. As a result, it can be avoided that the heat pump system 4 needs to be preheated and heated again after being switched from the stop working state to the working state, which results in a long drying time.
本实施例提供的热泵干衣机的控制方法,在烘干前期,启动热泵干衣机时,只有滚筒2、风机3和热泵系统4运行,以烘干衣物,热泵干衣机的能源消耗低。In the control method of the heat pump dryer provided in this embodiment, in the early stage of drying, when the heat pump dryer is started, only the drum 2, the fan 3 and the heat pump system 4 operate to dry the clothes. The heat pump dryer has low energy consumption .
图16为本发明提供的热泵干衣机控制方法的流程示意图四。如图16所示,在快速烘干模式下,启动热泵干衣机具体包括:FIG. 16 is a fourth flowchart of the method for controlling the heat pump clothes dryer provided by the present invention. As shown in Figure 16, in the fast drying mode, starting the heat pump dryer specifically includes:
控制滚筒2转动、风机3运行、热泵系统4工作,并且控制换气组件5不将风道外的冷风引入第一部分A2内,以及不将第一部分A2内的部分湿热空气排出第一部分A2;控制加热件8进行加热,加热件8设置在连接冷凝器42的出气口和滚筒2的干热风进口的一部分风道内。Control the rotation of the drum 2, the operation of the fan 3, and the operation of the heat pump system 4, and control the ventilation assembly 5 not to introduce the cold air outside the air duct into the first part A2, and not to discharge part of the hot and humid air in the first part A2 out of the first part A2; control heating The heating element 8 is heated, and the heating element 8 is arranged in a part of the air duct connecting the air outlet of the condenser 42 and the dry hot air inlet of the drum 2.
通过上述设置,由于烘干前期温度上升速度慢,通过控制加热件8进行加热,冷凝器42的出气口和滚筒2的干热风进口的一部分风道内的干热空气进行二次加热,使得干热空气的温度快速上升,提高了烘干速度,缩短了烘干时间,从而实现快速烘干。这里,需要说明的是,控制滚筒2转动、风机3运行、热泵系统4工作的执行顺序和具体步骤与节能模式中启动热泵干衣机的过程类似,在此不再赘述。Through the above settings, due to the slow temperature rise in the early stage of drying, by controlling the heating element 8 for heating, the dry hot air in the air outlet of the condenser 42 and part of the air duct of the dry hot air inlet of the drum 2 is reheated to make dry heat The temperature of the air rises rapidly, which increases the drying speed and shortens the drying time, thereby realizing rapid drying. Here, it should be noted that the execution sequence and specific steps of controlling the rotation of the drum 2, the operation of the fan 3, and the operation of the heat pump system 4 are similar to the process of starting the heat pump dryer in the energy-saving mode, and will not be repeated here.
其中,热泵系统4和加热件8之间没有执行的先后顺序的限定,即可以优先控制加热件8进行加热,而后控制热泵系统4工作;或者,可以同时热泵系统4工作和控制加热件8进行加热。本实施例优选的示例为优先控制热泵系统4工作,而后控制加热件8进行加热。由此,避免热泵系统4与加热件8同时启动,以阻止在启动的瞬间产生过大的冲击电流导致电路被损坏,而且避免加热件8在烘干前期进行干烧。Among them, there is no restriction on the order of execution between the heat pump system 4 and the heating element 8, that is, the heating element 8 can be controlled to be heated first, and then the heat pump system 4 can be controlled to work; or the heat pump system 4 can be operated and the heating element 8 can be controlled at the same time. heating. A preferred example of this embodiment is to control the work of the heat pump system 4 first, and then control the heating element 8 to heat. Therefore, the heat pump system 4 and the heating element 8 are prevented from starting at the same time, so as to prevent the excessive inrush current from being generated at the moment of starting and causing the circuit to be damaged, and to prevent the heating element 8 from being dry-burned in the early stage of drying.
进一步地,该控制方法还包括:在滚筒2停止转动的时候,控制加热件8停止加热。由此,避免滚筒2停止转动时加热件8持续加热而干烧,并且防止送入滚筒2内的干热空气的温度过高导致停留在滚筒2内的衣物被灼伤。而且,该避免了能源消耗。Further, the control method further includes: controlling the heating element 8 to stop heating when the drum 2 stops rotating. As a result, the heating element 8 is prevented from continuously heating and dry burning when the drum 2 stops rotating, and the temperature of the dry hot air sent into the drum 2 is prevented from being too high, causing the laundry staying in the drum 2 to be burned. Moreover, energy consumption should be avoided.
至此,已经结合附图所示的优选实施方式描述了本发明的技术方案,但是,本领域技术人员容易理解的是,本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下,本领域技术人员可以对相关技术特征作出等同的更改或替换,这些更改或替换之后的技术方案都将落入本发明的保护范围之内。So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (22)
- 一种热泵干衣机,其特征在于,包括:A heat pump clothes dryer is characterized in that it comprises:滚筒,具有干热风进口与湿热风出口;The drum has an inlet for dry and hot air and an outlet for hot and humid air;热泵系统,包括风道、冷凝器和蒸发器;所述风道包括第一部分、第二部分和第三部分;所述湿热风出口和所述蒸发器的进气口通过所述第一部分连通,所述蒸发器的出气口与所述冷凝器的进气口通过所述第二部分连通,所述冷凝器的出气口与所述干热风进口通过所述第三部分连通;The heat pump system includes an air duct, a condenser and an evaporator; the air duct includes a first part, a second part and a third part; the hot and humid air outlet and the air inlet of the evaporator are communicated through the first part, The air outlet of the evaporator communicates with the air inlet of the condenser through the second part, and the air outlet of the condenser communicates with the dry hot air inlet through the third part;风机,用于驱动空气在所述风道和所述滚筒内流动;A fan for driving air to flow in the air duct and the drum;换气组件,设于所述风道的第一部分,具有可开闭的进气孔和出气孔;所述进气孔用于将所述风道外的冷风引入所述风道的第一部分;所述出气孔用于将所述风道的第一部分内的部分湿热空气排出。The ventilating assembly is arranged in the first part of the air duct and has an openable and closable air inlet and an air outlet; the air inlet is used to introduce cold air outside the air duct into the first part of the air duct; The air outlet is used to exhaust part of the hot and humid air in the first part of the air duct.
- 根据权利要求1所述的热泵干衣机,其特征在于,所述进气孔和所述出气孔沿着所述风道的长度方向间隔一段距离设置。The heat pump clothes dryer according to claim 1, wherein the air inlet hole and the air outlet hole are arranged at a distance along the length direction of the air duct.
- 根据权利要求2所述的热泵干衣机,其特征在于,所述风机设置在所述第一部分上,所述进气孔设置在所述风机靠近所述蒸发器的进气口的一侧,所述出气孔设置在所述风机远离所述蒸发器的进气口的一侧。The heat pump clothes dryer according to claim 2, wherein the fan is arranged on the first part, and the air inlet is arranged on a side of the fan close to the air inlet of the evaporator, The air outlet is arranged on a side of the fan away from the air inlet of the evaporator.
- 根据权利要求1-3任一项所述的热泵干衣机,其特征在于,所述换气组件包括本体、第一盖板以及驱动器,所述本体设置在所述风道的第一部分,所述进气孔设置于所述本体上,所述第一盖板盖设于所述进气孔处,所述驱动器用于可控的驱动所述第一盖板运动以开闭所述进气孔。The heat pump clothes dryer according to any one of claims 1-3, wherein the ventilating assembly includes a body, a first cover and a driver, and the body is arranged in the first part of the air duct. The air intake hole is provided on the body, the first cover plate is provided at the air intake hole, and the driver is used to controllably drive the first cover plate to move to open and close the air intake hole.
- 根据权利要求4所述的热泵干衣机,其特征在于,所述热泵干衣机还包括前支撑,所述出气孔设置在所述前支撑上。The heat pump clothes dryer according to claim 4, wherein the heat pump clothes dryer further comprises a front support, and the air outlet is provided on the front support.
- 根据权利要求4或5所述的热泵干衣机,其特征在于,所述第一盖板的面积大于所述进气孔的面积,且所述第一盖板朝向所述本体的表面设置有第一密封件,所述第一密封件用于密封所述进气孔。The heat pump clothes dryer according to claim 4 or 5, wherein the area of the first cover plate is larger than the area of the air inlet hole, and the surface of the first cover plate facing the body is provided with The first sealing element is used to seal the air inlet hole.
- 根据权利要求4所述的热泵干衣机,其特征在于,所述换气组件包括第二盖板,所述出气孔设置于所述本体上,所述第二盖板盖设于所述出气孔处,所述驱动器用于可控的驱动所述第二盖板运动以开闭所述出气孔。The heat pump clothes dryer of claim 4, wherein the ventilating assembly includes a second cover, the air outlet is provided on the body, and the second cover is provided on the outlet. At the air hole, the driver is used to controllably drive the second cover plate to move to open and close the air outlet.
- 根据权利要求7所述的热泵干衣机,其特征在于,所述第一盖板和所述第二盖板通过两个独立的所述驱动器分别控制,或者,所述第一盖板 和所述第二盖板通过同一个所述驱动器联动控制。The heat pump clothes dryer according to claim 7, wherein the first cover and the second cover are respectively controlled by two independent drivers, or the first cover and the The second cover is controlled by the same driver in linkage.
- 根据权利要求8所述的热泵干衣机,其特征在于,The heat pump clothes dryer according to claim 8, wherein:所述第一盖板的一侧具有可转动连接在所述本体上的第一转轴,所述第一转轴位于所述进气孔远离所述出气孔的一侧;One side of the first cover plate is provided with a first rotating shaft rotatably connected to the body, and the first rotating shaft is located on a side of the air inlet hole away from the air outlet hole;所述第二盖板的一侧具有可转动连接在所述本体上的第二转轴,所述第二转轴位于所述出气孔背离所述进气孔的一侧;One side of the second cover plate has a second rotating shaft rotatably connected to the main body, and the second rotating shaft is located on a side of the air outlet away from the air inlet;所述第一转轴与所述第二转轴之间设有连杆组件,所述连杆组件的输入端与所述驱动器的输出端连接。A connecting rod assembly is provided between the first rotating shaft and the second rotating shaft, and the input end of the connecting rod assembly is connected with the output end of the driver.
- 根据权利要求9所述的热泵干衣机,其特征在于,The heat pump clothes dryer of claim 9, wherein:所述连杆组件包括与所述本体相连的第三转轴以及连接在所述第三转轴端面上的第一连杆、第二连杆,所述第三转轴位于所述进气孔和所述出气孔之间;The connecting rod assembly includes a third rotating shaft connected to the body, a first connecting rod and a second connecting rod connected to the end surface of the third rotating shaft, and the third rotating shaft is located between the air inlet and the Between the vent holes;所述第一连杆背离所述第三转轴的一端与所述第一转轴的端面连接,所述第二连杆背离所述第三转轴的一端与所述第二转轴的端面连接;An end of the first connecting rod facing away from the third rotating shaft is connected with an end surface of the first rotating shaft, and an end of the second connecting rod facing away from the third rotating shaft is connected with an end surface of the second rotating shaft;所述驱动器的输出端与所述第三转轴可拆卸连接,以带动所述第三转轴旋转。The output end of the driver is detachably connected with the third rotating shaft to drive the third rotating shaft to rotate.
- 根据权利要求7-10任一项所述的热泵干衣机,其特征在于,所述本体包括安装在所述第一部分上的安装板以及设置在所述安装板朝向所述第一部分内侧的第一壁板,所述第一壁板用于承接由所述滚筒的湿热风出口排出的湿热空气;The heat pump clothes dryer according to any one of claims 7-10, wherein the body includes a mounting plate mounted on the first part and a first part mounted on the mounting plate toward the inner side of the first part. A wall panel, the first wall panel is used to receive the hot and humid air discharged from the hot and humid air outlet of the drum;所述进气孔和出气孔并排设置在所述安装板上,且所述出气孔位于所述进气孔靠近所述第一壁板的一侧。The air inlet hole and the air outlet hole are arranged side by side on the mounting plate, and the air outlet hole is located on a side of the air inlet hole close to the first wall plate.
- 根据权利要求11所述的热泵干衣机,其特征在于,所述出气孔的面积大于所述进气孔的面积。The heat pump clothes dryer of claim 11, wherein the area of the air outlet hole is larger than the area of the air inlet hole.
- 根据权利要求4-12任一项所述的热泵干衣机,其特征在于,所述本体设有用于过滤湿热空气中杂物的第一过滤器。The heat pump clothes dryer according to any one of claims 4-12, wherein the body is provided with a first filter for filtering impurities in the hot and humid air.
- 根据权利要求1-13任一项所述的热泵干衣机,其特征在于,所述热泵干衣机还包括温度检测装置和控制装置,所述温度检测装置用于检测所述热泵系统的工作温度;所述控制装置用于在所述温度检测装置检测到的温度大于预设温度时,控制所述换气组件将所述风道外的冷风引入所述 第一部分内,或者,控制所述换气组件将所述第一部分内的一些湿热空气排出所述第一部分。The heat pump clothes dryer according to any one of claims 1-13, wherein the heat pump clothes dryer further comprises a temperature detection device and a control device, and the temperature detection device is used to detect the operation of the heat pump system Temperature; the control device is used to control the ventilation assembly to introduce the cold air outside the air duct into the first part when the temperature detected by the temperature detection device is greater than a preset temperature, or to control the change The air assembly discharges some hot and humid air in the first part out of the first part.
- 根据权利要求14所述的热泵干衣机,其特征在于,所述温度检测装置包括第一温度检测装置,用于检测所述蒸发器的进气口的温度;The heat pump clothes dryer of claim 14, wherein the temperature detection device comprises a first temperature detection device for detecting the temperature of the air inlet of the evaporator;所述控制装置用于在所述第一温度检测装置检测到的温度大于第一预设温度时,控制所述换气组件将所述风道外的冷风引入所述第一部分内,或者,控制所述换气组件将所述第一部分内的一些湿热空气排出所述第一部分。The control device is used to control the ventilation assembly to introduce the cold air outside the air duct into the first part when the temperature detected by the first temperature detection device is greater than a first preset temperature, or to control all The ventilation assembly discharges some hot and humid air in the first part out of the first part.
- 根据权利要求14或15所述的热泵干衣机,其特征在于,所述温度检测装置包括第二温度检测装置,用于检测所述冷凝器的出气口的温度;The heat pump clothes dryer according to claim 14 or 15, wherein the temperature detection device comprises a second temperature detection device for detecting the temperature of the air outlet of the condenser;所述控制装置用于在所述第二温度检测装置检测到的温度大于第二预设温度时,控制所述换气组件将所述风道外的冷风引入所述第一部分内,或者,控制所述换气组件将所述第一部分内的一些湿热空气排出所述第一部分。The control device is used to control the ventilation assembly to introduce the cold air outside the air duct into the first part when the temperature detected by the second temperature detection device is greater than a second preset temperature, or to control the The ventilation assembly discharges some hot and humid air in the first part out of the first part.
- 根据权利要求14-16任一项所述的热泵干衣机,其特征在于,所述热泵系统还包括压缩机,所述压缩机位于所述蒸发器与所述冷凝器之间;所述温度检测装置包括第三温度检测装置,用于检测所述压缩机的出气口的温度;The heat pump clothes dryer according to any one of claims 14-16, wherein the heat pump system further comprises a compressor, and the compressor is located between the evaporator and the condenser; the temperature The detecting device includes a third temperature detecting device for detecting the temperature of the air outlet of the compressor;所述控制装置用于在所述第三温度检测装置检测到的温度大于第三预设温度时,控制所述换气组件将所述风道外的冷风引入所述第一部分内,或者,控制所述换气组件将所述第一部分内的一些湿热空气排出所述第一部分。The control device is used to control the ventilation assembly to introduce the cold air outside the air duct into the first part when the temperature detected by the third temperature detection device is greater than a third preset temperature, or to control all The ventilation assembly discharges some hot and humid air in the first part out of the first part.
- 根据权利要求14-17任一项所述的热泵干衣机,其特征在于,所述风道的第三部分内设有加热件。The heat pump clothes dryer according to any one of claims 14-17, wherein the third part of the air duct is provided with a heating element.
- 根据权利要求18所述的热泵干衣机,其特征在于,所述控制装置还用于周期性的控制所述滚筒停转,并且,在所述滚筒停转时,所述控制装置还控制所述加热件停止加热。The heat pump clothes dryer of claim 18, wherein the control device is also used to periodically control the drum to stop rotating, and when the drum is stopped, the control device also controls the drum. The heating element stops heating.
- 一种热泵干衣机的控制方法,其特征在于,启动热泵干衣机;根据热泵系统的工作温度,控制换气组件将冷风引入到用于连接蒸发器和滚筒的湿热风出口的一部分风道内,或者,控制所述换气组件将所述风道内的 一些湿热空气排出。A control method of a heat pump clothes dryer, characterized in that the heat pump clothes dryer is started; according to the working temperature of the heat pump system, the ventilation assembly is controlled to introduce cold air into a part of the air duct connecting the evaporator and the hot and humid air outlet of the drum Or, control the ventilation assembly to exhaust some hot and humid air in the air duct.
- 根据权利要求20所述的热泵干衣机的控制方法,其特征在于,所述根据热泵系统的工作温度,控制换气组件将冷风引入到用于连接蒸发器和滚筒的湿热风出口的一部分风道内,或者,控制所述换气组件将所述风道内的一些湿热空气排出,具体包括:The method for controlling a heat pump clothes dryer according to claim 20, wherein the ventilation component is controlled according to the operating temperature of the heat pump system to introduce cold air into a part of the air at the hot and humid air outlet connecting the evaporator and the drum. In the duct, or controlling the ventilating assembly to exhaust some hot and humid air in the air duct, specifically including:当蒸发器的进气口的温度大于第一预设温度时,当冷凝器的出气口的温度大于第二预设温度时或者当压缩机的出气口的温度大于第三预设温度时;When the temperature of the air inlet of the evaporator is greater than the first preset temperature, when the temperature of the condenser's air outlet is greater than the second preset temperature or when the temperature of the compressor's air outlet is greater than the third preset temperature;控制换气组件将冷风引入到用于连接蒸发器和滚筒的湿热风出口的一部分风道内,或者,控制所述换气组件将所述风道内的一些湿热空气排出。The ventilating assembly is controlled to introduce cold air into a part of the air duct connecting the evaporator and the hot and humid air outlet of the drum, or the ventilating assembly is controlled to discharge some hot and humid air in the air duct.
- 根据权利要求20或21所述的热泵干衣机的控制方法,其特征在于,还包括:The control method of the heat pump clothes dryer according to claim 20 or 21, further comprising:在滚筒停转的时候,控制加热件停止加热,所述加热件设置在连接冷凝器的出气口和滚筒的干热风进口的一部分风道内。When the drum stops rotating, the heating element is controlled to stop heating, and the heating element is arranged in a part of the air duct connecting the air outlet of the condenser and the dry hot air inlet of the drum.
Applications Claiming Priority (6)
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CN202010431216.9A CN111676676B (en) | 2020-05-20 | 2020-05-20 | Heat pump clothes dryer |
CN202010431219.2A CN111676678B (en) | 2020-05-20 | 2020-05-20 | Ventilation assembly and heat pump clothes dryer |
CN202010431216.9 | 2020-05-20 | ||
CN202010431219.2 | 2020-05-20 | ||
CN202010431212.0A CN111676675B (en) | 2020-05-20 | 2020-05-20 | Heat pump clothes dryer and control method thereof |
CN202010431212.0 | 2020-05-20 |
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WO (1) | WO2021213530A1 (en) |
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