阅读说明：本技术 一种护衣防高温热泵干衣机 (High-temperature-resistant heat pump clothes dryer with clothes protection function ) 是由 王黎明 凌弋龙 陈丹明 孙皓明 于 2021-08-26 设计创作，主要内容包括：本发明提供了一种护衣防高温热泵干衣机,属于衣物烘干设备技术领域。它解决了现有的干衣机烘干温度过高会损伤衣物等问题。本发明包括机箱以及烘干腔,内风道、内进风口、烘干腔、内出风口能形成用于空气流通的第一风路,第一风路上的空气能通过一热泵装置加热并除湿,热泵装置包括压缩机、第一冷凝器、第二冷凝器以及蒸发器,蒸发器、第一冷凝器设置在内风道内,第二冷凝器位于第一风路路径外,机箱上还设有用于将第二冷凝器上的热量引流至机箱外的散热风机。本发明的优点在于能防止烘干温度过高损伤衣物。(The invention provides a heat pump clothes dryer capable of protecting clothes and preventing high temperature, and belongs to the technical field of clothes drying equipment. It has solved the too high clothing scheduling problem that can damage of current dryer stoving temperature. The invention comprises a case and a drying cavity, wherein an inner air duct, an inner air inlet, the drying cavity and an inner air outlet can form a first air path for air circulation, air on the first air path can be heated and dehumidified by a heat pump device, the heat pump device comprises a compressor, a first condenser, a second condenser and an evaporator, the evaporator and the first condenser are arranged in the inner air duct, the second condenser is positioned outside a first air path, and the case is also provided with a heat radiation fan for guiding heat on the second condenser to the outside of the case. The invention has the advantage of preventing the clothes from being damaged due to overhigh drying temperature.)

1. A clothes-protecting high-temperature-preventing heat pump clothes dryer is characterized by comprising a machine case (1) and a drying cavity (2) arranged in the machine case (1), wherein the drying cavity (2) is provided with an inner air inlet (3) and an inner air outlet (4), a roller (6) used for containing clothes is further arranged in the drying cavity (2), the roller (6) can rotate under the driving of a driving mechanism, a plurality of ventilation holes are formed in the roller (6), an inner air duct (8) connecting the inner air inlet (3) and the inner air outlet (4) is further arranged in the machine case (1), the inner air duct (8), the inner air inlet (3), the drying cavity (2) and the inner air outlet (4) can form a first air path used for air circulation, and air on the first air path flows along the inner air duct (8), the inner air inlet (3), the drying cavity (2), the inner air outlet (4) and the inner air duct (8) in a circulating mode in sequence, the heat pump type air conditioner is characterized in that an inner fan (31) used for enabling air to flow is further arranged in the case (1), the air on the first air path can be heated and dehumidified through a heat pump device, the heat pump device comprises a compressor (26), a first condenser (27), a second condenser (32) and an evaporator (28) which are connected in a closed loop mode through a refrigerant pipeline, the evaporator (28) and the first condenser (27) are arranged in the inner air duct (8) and are sequentially arranged along the air flow direction of the first air path, the second condenser (32) is located outside the first air path, and a heat dissipation fan (33) used for guiding heat on the second condenser (32) to the outside of the case (1) is further arranged on the case (1).

2. A clothing protection high temperature prevention heat pump clothes dryer according to claim 1, characterized in that, a microwave generating device for emitting microwave into the drum (6) is further provided in the cabinet (1), the microwave generating device comprises a magnetron (29) and a waveguide cavity (30), the magnetron (29) is guided by the waveguide cavity (30) to emit microwave into the drum (6).

3. A clothing-protecting high-temperature-preventing heat pump clothes dryer according to claim 2, wherein a clothes-taking opening for taking clothes is formed in one side of the drum (6), the microwave generating device is arranged on the other side of the drum (6) and located outside the drum (6), a transmitting opening communicated with an inner cavity of the drum (6) is formed in the other side of the drum (6), the waveguide cavity (30) is butted at the transmitting opening, the magnetron (29) is located in the waveguide cavity (30), a mica spacer is further arranged at the transmitting opening, and the waveguide cavity (30) is a metal inner cavity.

4. A clothes-protecting high-temperature-preventing heat pump clothes dryer according to claim 1, 2 or 3, characterized in that a filter screen (9) is further arranged in the inner air duct (8), and the filter screen (9), the evaporator (28) and the first condenser (27) are sequentially arranged along the air flowing direction of the first air path.

5. A clothes-protecting and high-temperature-preventing heat pump clothes dryer according to claim 4, characterized in that the cabinet (1) is further provided with an outer air inlet and an outer air outlet for communicating with the outside atmosphere, the outer air inlet and the outer air outlet are both communicated with the inner air duct (8), the outer air inlet, the inner air duct (8) and the outer air outlet can form a second air duct for air circulation, air on the second air duct flows along the outer air inlet, the inner air duct (8) and the outer air outlet in sequence, the flow direction of the air in the inner air duct (8) along the first air duct is opposite to the flow direction of the air in the inner air duct (8) along the second air duct, and the outer air outlet is connected with a dust extraction device in a butt joint mode.

6. A clothes-protecting and high-temperature-preventing heat pump clothes dryer according to claim 5, characterized in that a plurality of valves for guiding air to flow along a required air path are further arranged on the cabinet (1).

7. The clothes-protecting and high-temperature-preventing heat pump clothes dryer as claimed in claim 6, wherein the outer air inlet and the inner air inlet (3) are communicated through an air inlet duct (7), the outer air outlet and the inner air outlet (4) are communicated through an air outlet duct (11), the outer air inlet, the air inlet duct (7), the inner air inlet (3), the drying cavity (2), the inner air outlet (4), the air outlet duct (11) and the outer air outlet can form a third air path for air circulation, air on the third air path flows along the outer air inlet, the air inlet duct (7), the inner air inlet (3), the drying cavity (2), the inner air outlet (4), the air outlet duct (11) and the outer air outlet in sequence, the inner air duct (8) is communicated with the outer air inlet through the air inlet duct (7), and the inner air duct (8) is communicated with the outer air outlet duct (11) through the air outlet duct (11).

8. The clothes-protecting and high-temperature-preventing heat pump clothes dryer as claimed in claim 5, wherein the filter screen (9) has an air inlet surface and an air outlet surface, the air inlet surface faces downward, a dust receiving box (10) is arranged below the air inlet surface, the air inlet surface enters air and the air outlet surface exits air when air flows along the first air path, and the air outlet surface enters air and the air inlet surface exits air when air flows along the second air path.

9. The clothes-protecting high-temperature-preventing heat pump clothes dryer as claimed in claim 8, wherein the filter screen (9) is V-shaped, the V-shaped opening of the filter screen (9) faces downwards, the air inlet surface is a V-shaped inner side surface of the filter screen (9), and the air outlet surface is a V-shaped outer side surface of the filter surface.

10. A clothes-protecting high-temperature-preventing heat pump clothes dryer according to claim 5, wherein the dust-pumping device comprises a dust-pumping box (12) arranged outside the cabinet (1) and a filter bag (13) arranged in the dust-pumping box (12), the dust-pumping box (12) has an inner cavity, the inner cavity is divided into an upper cavity (15) and a lower cavity (16) by a partition plate (14), the lower cavity (16) is communicated with the air outlet, a filter hole for communicating the upper cavity (15) with the lower cavity (16) is arranged on the partition plate (14), the filter bag (13) is positioned in the lower cavity (16), a bag opening of the filter bag (13) is sleeved at the filter hole, a dust-pumping opening (18) communicated with the upper cavity (15) is further arranged on the outer wall of the dust-pumping box (12), and the dust-pumping device further comprises a dust collector or an exhaust fan butted with the dust-pumping opening (18).

Technical Field

The invention belongs to the technical field of clothes drying equipment, and particularly relates to a heat pump clothes dryer capable of protecting clothes and preventing high temperature.

Background

The heat pump clothes dryer heats air through a heat pump system, hot air flows through the surface of clothes under the action of a fan, moisture on the clothes is taken away through heat-moisture exchange and moisture evaporation promotion, accelerated drying of the clothes is achieved, the temperature of a clothes drying chamber can be continuously increased in the working process through the heat pump system with the conventional structure, and clothes fibers can be damaged when the temperature in the drying chamber is too high.

Disclosure of Invention

The invention aims to provide a heat pump clothes dryer capable of preventing clothes from being damaged due to overhigh temperature in a roller in the conventional clothes drying process.

The purpose of the invention can be realized by the following technical scheme:

the clothes-protecting high-temperature-preventing heat pump clothes dryer comprises a case and a drying cavity arranged in the case, wherein the drying cavity is provided with an inner air inlet and an inner air outlet, a roller for accommodating clothes is further arranged in the drying cavity, the roller can be driven by a driving mechanism to rotate, a plurality of ventilation holes are formed in the roller, an inner air channel for connecting the inner air inlet and the inner air outlet is further arranged in the case, the inner air channel, the inner air inlet, the drying cavity and the inner air outlet can form a first air path for air circulation, air on the first air path circularly flows along the inner air channel, the inner air inlet, the drying cavity, the inner air outlet and the inner air path in sequence, an inner fan for enabling the air to flow is further arranged in the case, the air on the first air path can be heated and dehumidified through a heat pump device, and the heat pump device comprises a compressor, a first condenser and a second condenser which are connected in a closed loop mode through refrigerant pipelines, The second condenser and the evaporator are arranged in the inner air channel, the evaporator and the first condenser are sequentially arranged along the air flow direction of the first air path, the second condenser is located outside the first air path, and the case is further provided with a heat dissipation fan used for guiding heat on the second condenser to the outside of the case.

In the above-mentioned clothes-protecting high-temperature-preventing heat pump clothes dryer, a microwave generating device for emitting microwaves into the drum is further arranged in the cabinet, and the microwave generating device includes a magnetron and a waveguide cavity, and the magnetron is guided by the waveguide cavity to emit microwaves into the drum.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, a clothes taking opening for placing and taking clothes is formed in one side of the roller, the microwave generating device is arranged on the other side of the roller and located outside the roller, a transmitting opening communicated with an inner cavity of the roller is formed in the other side of the roller, the waveguide cavity is in butt joint with the transmitting opening, the magnetron is located in the waveguide cavity, a mica spacer is further arranged at the transmitting opening, and the waveguide cavity is a metal inner cavity.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the plurality of the transmitting openings are uniformly distributed on the other side of the roller, and the microwave generating devices are arranged in one-to-one correspondence with the transmitting openings.

In the clothes-protecting and high-temperature-preventing heat pump clothes dryer, a filter screen is further arranged in the inner air duct, and the filter screen, the evaporator and the first condenser are sequentially arranged along the air flowing direction of the first air path.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the case is further provided with an outer air inlet and an outer air outlet which are communicated with the outside atmosphere, the outer air inlet and the outer air outlet are communicated with the inner air duct, the outer air inlet, the inner air duct and the outer air outlet can form a second air duct for air circulation, air on the second air duct flows along the outer air inlet, the inner air duct and the outer air outlet in sequence, the air flows along the first air duct in the inner air duct in the opposite direction to the air flows along the second air duct in the inner air duct, and the outer air outlet is abutted to a dust extraction device.

In the above-mentioned clothes-protecting and high-temperature-preventing heat pump clothes dryer, the cabinet is further provided with a plurality of valves for guiding air to flow along a required air path.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the valves include a first valve, a second valve and a third valve, the first valve is used for opening or closing the inner air outlet, the second valve is used for opening or closing the outer air inlet, and the third valve is used for opening or closing the outer air outlet.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the outer air inlet and the inner air inlet are communicated through an air inlet duct, the outer air outlet and the inner air outlet are communicated through an air outlet duct, the outer air inlet, the air inlet duct, the inner air inlet, the drying cavity, the inner air outlet, the air outlet duct and the outer air outlet can form a third air path for air circulation, air on the third air path flows along the outer air inlet, the air inlet duct, the inner air inlet, the drying cavity, the inner air outlet, the air outlet duct and the outer air outlet in sequence, the inner air duct is communicated with the outer air inlet through the air inlet duct, and the inner air duct is communicated with the outer air outlet through the air outlet duct.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the filter screen is provided with the air inlet surface and the air outlet surface, the air inlet surface is downward, the dust collecting box is arranged below the air inlet surface, when air flows along the first air path, air is fed into the air inlet surface and is discharged from the air outlet surface, and when air flows along the second air path, air is fed into the air outlet surface and is discharged from the air inlet surface.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the filter screen is V-shaped, the V-shaped opening of the filter screen faces downwards, the air inlet surface is the V-shaped inner side surface of the filter screen, and the air outlet surface is the V-shaped outer side surface of the filter surface.

In foretell a protect clothing and prevent high temperature heat pump dryer, the dust extraction device is including setting up a dust extraction case outside quick-witted case and setting up the filter bag at the dust extraction incasement, and the dust extraction case has the inner chamber, and the inner chamber divide into epicoele and cavity of resorption through a baffle, and cavity of resorption and above-mentioned air outlet intercommunication are equipped with the filtration pore of crossing of intercommunication epicoele and cavity of resorption on the baffle, and the aforesaid is crossed the filter bag and is located the cavity of resorption, and the sack cover of crossing the filter bag is established in filtration pore department, still sets up the dust extraction mouth with the epicoele intercommunication on the dust extraction case outer wall, dust extraction device still includes dust catcher or the air exhauster that docks with the dust extraction mouth.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the first valve is a turning plate which is rotatably arranged in the machine case, and the inner air outlet can be opened or blocked in the rotating process of the turning plate.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the second valve and the third valve respectively comprise a valve cover and an oil cylinder or an air cylinder for driving the valve covers to move, the valve covers are fixed on piston rods of the oil cylinder or the air cylinder, the valve cover of the second valve is arranged at the position of the outer air inlet, the valve cover of the third valve is arranged at the position of the filter hole, and the valve covers open or close the corresponding outer air inlet and the filter hole in the moving process.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, a main door for opening or closing the clothes taking opening is arranged on the front side of the machine case, a side door for opening or closing the inner air duct is further arranged on the machine case, and the filter screen is detachably arranged in the inner air duct.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the side door is positioned at the front side of the machine case and at one side of the main door.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the inner air inlet is located at the top of the drying cavity, the inner air outlet is located at the lower part of the drying cavity, the air inlet duct is located above the inner air inlet, the inner air duct is located at the side part of the drying cavity, and the air outlet duct is connected to the lower end of the inner air duct.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, two inner air ducts are arranged on two sides of the drying cavity respectively, the two inner air ducts are in butt joint with the same air inlet duct, and the heat pump device and the filter screen are arranged in one-to-one correspondence with the inner air ducts.

In the clothes-protecting high-temperature-preventing heat pump clothes dryer, the inner fan is arranged in the air inlet duct.

Compared with the prior art, the invention has the advantages that:

1. the heat radiation fan can be opened and closed according to the drying temperature in the roller, the heat preservation and heat radiation states of the second condenser are switched under control, and high-temperature damage to clothes is prevented on the premise of ensuring high-efficiency drying;

2. the first air path is provided with a filter screen which can filter plush substances generated in the drying process and has a cleaning effect on the air duct;

3. the second air path reversely blows through the filter screen and is matched with the dust extraction device, the filter screen can be automatically cleaned, the cleaning is convenient and labor-saving, the service life of the filter screen can be prolonged, the dust extraction device filters air and then discharges the air, plush substances and the like can be effectively prevented from being discharged into the air, and the environment is protected;

4. the side door can open the inner air duct, so that the filter screen and the dust collecting box can be conveniently taken out;

5. utilize microwave generating device can deep stoving clothing, it is more even to dry, and drying efficiency is high, and is effectual.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the side door of the present invention with the side door removed;

FIG. 5 is a schematic view of the dust extraction box with the door removed;

fig. 6 is a schematic view of the heat pump apparatus.

In the figure, 1, a chassis; 2. a drying cavity; 3. an inner air inlet; 4. an inner air outlet; 5. an arc-shaped plate; 6. a drum; 7. an air inlet duct; 8. an inner air duct; 9. a filter screen; 10. a dust collecting box; 11. an air outlet channel; 12. a dust extraction box; 13. a filter bag; 14. a partition plate; 15. an upper chamber; 16. a lower cavity; 17. a filtration pore; 18. a dust extraction port; 19. a box door; 20. turning over a plate; 21. a rotating shaft; 22. a rotating member; 23. a valve cover; 24. a main door; 25. a side door; 26. a compressor; 27. a first condenser; 28. an evaporator; 29. a magnetron; 30. a waveguide cavity; 31. an inner fan; 32. a second condenser; 33. a heat radiation fan.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, the clothes-protecting high-temperature-preventing heat pump clothes dryer provided by the invention comprises a machine case 1 and a drying chamber 2 arranged in the machine case 1, wherein the drying chamber 2 is provided with an inner air inlet 3 for air inlet and an inner air outlet 4 for air outlet, the inner air inlet 3 is arranged at the top of the drying chamber 2, the two inner air outlets 4 are respectively arranged at two sides of the lower part of the drying chamber 2, two arc-shaped plates 5 which are oppositely arranged are arranged in the drying chamber 2, the upper ends of the two arc-shaped plates 5 are respectively butted at two ends of the inner air inlet 3, air enters the two arc-shaped plates 5 from the inner air inlet 3, a roller 6 for accommodating clothes is arranged in the two arc-shaped plates 5, the front side of the roller 6 is close to the front side of the machine case 1, a clothes taking opening for taking clothes is arranged at the front side of the roller 6, the rear side of the roller 6 is sealed, a plurality of vent holes are distributed on the periphery of the roller 6, and are used for communicating the inner cavity of the roller 6 with the drying chamber 2, the lower ends of the two arc-shaped plates 5 are separately used for air outlet at intervals, the roller 6 is rotatably arranged in the case 1, the roller 6 can be driven by a driving mechanism to rotate, the driving mechanism is a motor, the motor is in transmission connection with the roller 6 through a transmission mechanism, and the transmission mechanism can be a belt pulley, a belt or other transmission structures.

An air inlet duct 7 communicated with the inner air inlet 3 is further arranged above the inner air inlet 3, an outer air inlet communicated with the air inlet duct 7 is arranged at the rear side of the case 1 and is used for communicating with the outside air, inner air ducts 8 are respectively arranged at two sides of the drying cavity 2, the upper ends of the two inner air ducts 8 are communicated with the air inlet duct 7, the inner air ducts 8 are communicated with the inner air inlet 3 through the air inlet duct 7, the inner air outlets 4 are in one-to-one correspondence with the inner air ducts 8, the inner air outlets 4 are positioned at one side corresponding to the lower part of the inner air ducts 8, a filter screen 9 is also arranged in each inner air duct 8, the filter screen 9 is positioned above the inner air outlets 4, the filter screen 9 is V-shaped, the V-shaped filter screen 9 can increase the filtering area, the V-shaped opening of the filter screen 9 is downward, the filter screen 9 is provided with an air inlet surface and an air outlet surface, the air inlet surface is a V-shaped inner side surface of the filter screen 9, the air outlet surface is a V-shaped outer side surface of the filter surface, a dust collecting box 10 is arranged below the air inlet surface, the dust collecting box 10 is positioned at the bottom of the machine case 1, the dust collecting box 10 is used for collecting dust, plush substances and the like falling on the filter screen 9, the lower end of each inner air channel 8 is also connected with an air outlet channel 11, the rear side of the machine case 1 is provided with an air outlet communicated with the air outlet channel 11, the air outlet is butted with a dust pumping device, the dust pumping device comprises a dust pumping box 12 arranged at the lower part of the rear side of the machine case 1 and a filter bag 13 arranged in the dust pumping box 12, the dust pumping box 12 is provided with an inner cavity, the inner cavity is divided into an upper cavity 15 and a lower cavity 16 through a partition plate 14, the lower cavity 16 is communicated with the air outlet, the partition plate 14 is provided with a filter hole 17 communicating the upper cavity 15 and the lower cavity 16, the filter bag 13 is positioned in the lower cavity 16, a detachable bag opening of the filter bag 13 is sleeved at the filter hole 17, the side wall of the dust pumping box 12 is also provided with a dust pumping port 18 communicated with the upper cavity 15, the dust pumping device also comprises a dust collector or an exhaust fan butted with the dust pumping port 18, the filter bag 13 is used for filtering air exhausted to the outside of the case 1, preventing lint and dust from being exhausted into the atmosphere, and achieving the purpose of environmental protection, and the dust box 12 is provided with a box door 19 for opening or closing the inner cavity of the dust box 12, and the filter bag 13 can be replaced by opening the box door 19.

The inner air duct 8, the air inlet duct 7, the inner air inlet 3, the drying cavity 2 and the inner air outlet 4 can form a first air path for air circulation, air on the first air path circularly flows along the inner air duct 8, the air inlet duct 7, the inner air inlet 3, the drying cavity 2, the inner air outlet 4 and the inner air duct 8 in sequence, the first air path is a closed-loop air path, and the first air path is used for drying clothes; the outer air inlet, the air inlet duct 7, the inner air duct 8, the air outlet duct 11 and the outer air outlet can form a second air duct for air circulation, air on the second air duct flows along the outer air inlet, the air inlet duct 7, the inner air duct 8, the air outlet duct 11 and the outer air outlet in sequence, the second air duct is an open-loop air duct, the flow direction of the air in the inner air duct 8 along the first air duct is opposite to the flow direction of the air in the inner air duct 8 along the second air duct, the second air duct is a clean filter screen 9, when the air flows along the first air duct, the air enters from the air inlet face of the filter screen 9, the air is discharged from the air outlet face, dust and fluffy substances can be adsorbed on the air inlet face, when the air flows along the second air duct, the air enters from the air outlet face, the air is discharged from the air inlet face, and the dust and fluffy substances can be blown down from the filter screen 9 and pumped away through the dust pumping device; the outer air inlet, the air inlet duct 7, the inner air inlet 3, the drying cavity 2, the inner air outlet 4, the air outlet duct 11 and the outer air outlet can form a third air path for air circulation, air on the third air path flows along the outer air inlet, the air inlet duct 7, the inner air inlet 3, the drying cavity 2, the inner air outlet 4, the air outlet duct 11 and the outer air outlet in sequence, the third air path is also an open-loop air path, and the third air path is used for discharging moisture to the outside of the case 1.

The chassis 1 is further provided with a plurality of inner fans 31 for guiding air to flow along the air path, the number and the positions of the inner fans 31 are set according to specific requirements, in this embodiment, one inner fan 31 is provided, and the inner fan 31 is disposed in the air inlet duct 7.

The chassis 1 is further provided with a plurality of valves for guiding air to flow along a required air path, and the plurality of valves comprise a first valve, a second valve and a third valve: the first valve is used for opening or closing the inner air outlet 4, the first valve is a turning plate 20 which is rotatably arranged in the case 1, one side of the turning plate 20 is fixed on a rotating shaft 21, the rotating shaft 21 is rotatably arranged on the case 1, the rear end of the rotating shaft 21 extends out of the rear side of the case 1, a rotating part 22 for rotating the rotating shaft 21 is arranged at the rear end of the rotating shaft 21, the turning plate 20 can open or close the inner air outlet 4 in the rotating process, the inner air outlet 4 can be closed when the turning plate 20 rotates vertically as shown in figure 3, so that the inner air outlet 4 is disconnected with the inner air duct 8, when the turning plate 20 rotates to be horizontal, the inner air outlet 4 is communicated with the inner air duct 8, and when the turning plate 20 rotates to be horizontal, one side of the turning plate 20 far away from the rotating shaft 21 and the inner wall of the inner air duct 8 form a ventilation channel at intervals, and the ventilation channel enables the air outlet 11 to be communicated with the drying cavity 2 through the inner air duct 8; the second valve is used for opening or closing the outer air inlet, the third valve is used for opening or closing the outer air outlet, the second valve and the third valve both comprise a valve cover 23 and an oil cylinder or an air cylinder for driving the valve cover 23 to move, the valve cover 23 is fixed on a piston rod of the oil cylinder or the air cylinder, the valve cover 23 of the second valve is arranged at the outer air inlet, the valve cover 23 of the third valve is arranged at the filter hole 17, when the first valve is opened, the second valve and the third valve are closed, the air can only flow along the first air path in cooperation with the inner fan 31, when the first valve is closed, the second valve is opened, the third valve is opened, the air can only flow along the second air path in cooperation with the dust extraction device, and when the first valve, the second valve and the third valve are opened, the air can simultaneously flow along the second air path and the third air path.

The main door 24 that the cylinder 6 got the clothing mouth is opened or closed to 1 front side of quick-witted case, still is equipped with the side door 25 that is used for opening or closes interior wind channel 8 on the quick-witted case 1, and side door 25 sets up with interior wind channel 8 one-to-one, and side door 25 is located quick-witted case 1 front side, and two side doors 25 divide the both sides at main door 24, and wind channel 8 including the setting can be dismantled to filter screen 9, and wind channel 8 lower extreme including the contact box is placed opens side door 25 and can take out filter screen 9 and contact box.

The air on the first air passage can be heated and dehumidified through a heat pump device, the heat pump device is arranged in one-to-one correspondence with the inner air passages 8, namely, each inner air passage 8 corresponds to one group of heat pump device, the heat pump device comprises a compressor 26, a first condenser 27 and an evaporator 28 which are connected in a closed loop mode through a refrigerant pipeline, refrigerants such as Freon and the like circulate in the refrigerant pipeline, the evaporator 28 and the first condenser 27 are arranged in the inner air passage 8, a filter screen 9, the evaporator 28 and the first condenser 27 are sequentially arranged along the air flow direction of the first air passage, the evaporator 28 absorbs heat, the first condenser 27 dissipates heat, and the evaporator 28 cools the air in the heat absorption process, so that the dehumidification effect can be achieved, the dehumidified air is heated through the first condenser 27 and then enters the drying cavity 2 to exchange heat with clothes.

In order to prevent the clothes from being damaged due to overhigh temperature in the drum 6 in the drying process, the heat pump device further comprises a second condenser 32, the second condenser 32 is connected with the first condenser 27 in series, the first condenser 27, the second condenser 32 and the evaporator 28 are sequentially connected through refrigerant pipelines, the second condenser 32 is positioned outside each air path, the case 1 is further provided with a heat dissipation fan 33 for guiding the heat on the second condenser 32 to the outside of the case 1, when the temperature in the drum 6 does not exceed the set temperature, the heat dissipation fan 33 does not work, at this time, the heat on the second condenser 32 cannot be dissipated, the temperature of the refrigerant cannot be reduced when the refrigerant passes through the second condenser 32, so that the heat preservation effect on the refrigerant is achieved, when the temperature in the drum 6 exceeds the set temperature, the heat dissipation fan 33 works to blow and dissipate the heat of the second condenser 32, the heat on the second condenser 32 is blown to the outside of the case 1, the temperature of the refrigerant passing through the second condenser 32 can be reduced to reduce the drying temperature, and a temperature sensor for monitoring the temperature in the drum 6 is further provided in the cabinet 1 for cooperating with the second condenser 32.

Still be equipped with the microwave generating device who is used for launching the microwave in to cylinder 6 in the machine case 1, microwave generating device sets up on the rear side of cylinder 6, microwave generating device is located outside cylinder 6, set up the transmission mouth with cylinder 6 inner chamber intercommunication on the rear side of cylinder 6, microwave generating device includes magnetron 29 and waveguide chamber 30, waveguide chamber 30 is one and encloses the inner chamber that closes the formation by the metal sheet, the metal material is aluminium, waveguide chamber 30 docks in transmission mouth department, magnetron 29 is located waveguide chamber 30, transmission mouth department still is equipped with the mica spacer, magnetron 29 passes through waveguide chamber 30 direction and launches the microwave in to cylinder 6, the transmission mouth is equipped with a plurality ofly, a plurality of transmission mouth equipartitions are on the rear side of cylinder 6, microwave generating device and transmission mouth one-to-one setting.

Be equipped with the glass layer of perspective and the reflection stratum that prevents the microwave leakage on the main door 24, the reflection stratum is a metal sheet, and the metal sheet material is aluminium, is covered with a plurality of perspective holes on the metal sheet, and glass layer and reflection stratum interval set up, and the reflection stratum is located the inboard, and the relative glass layer of reflection stratum is close to and gets the clothing mouth.

The microwave generator is matched with the heat pump device, so that clothes can be efficiently and uniformly dried, the drying effect is better, and the efficiency is better.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended sense, i.e., in a sense equivalent to "including at least … …", and not in a closed sense, i.e., in a sense not to be interpreted as "including only … …".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.