A heat pump dryer with a heating function

Abstract

The present invention belongs to the technical field of clothes dryers, and discloses a heat pump clothes dryer with a heating function, which includes a box body provided with a communication port, a clothes dryer air duct, an evaporator and a condenser, an air inlet and an air outlet both communicating with the clothes dryer air duct, a first wind deflector arranged between the air inlet and the air outlet, a second wind deflector arranged at the communication position between the clothes dryer air duct and the communication port, and an exhaust pipe and a corrugated pipe both communicating with the clothes dryer air duct. The air inlet communicates with the indoor space, and the air outlet is connected with a connecting pipe. When in the heating mode, indoor air enters the clothes dryer air duct through the air inlet and is heated by the condenser, and finally is discharged into the indoor space through the exhaust pipe. At the same time, outdoor air enters the clothes dryer air duct through the corrugated pipe and is cooled by the evaporator, and finally is discharged to the outdoor through the connecting pipe. The present invention can realize the functions of drying clothes and heating, without the need to add equipment such as air conditioners, saving costs and not occupying indoor space due to purchasing equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes dryers, and particularly to a heat pump clothes dryer with a heating function. Background Art

[0002] With the gradual improvement of people's living standards, clothes dryers have begun to enter people's lives and play an important role. Currently, existing clothes dryers can only dry clothes and have a single function. For the period of returning south weather, plum rain season with continuous wet weather, and many coastal areas, in addition to the difficulty of drying clothes, the humid indoor environment also brings certain troubles to users. The long-term humid environment is prone to breeding bacteria, causing skin and respiratory infections, and also causing the growth of mold at home, which is not conducive to people's health.

[0003] In addition, for small spaces such as balconies, kitchens, and bathrooms in users' residences, air conditioners are usually not equipped, and the air conditioners in the residence cannot cover these small spaces. When users enter these small spaces in cold weather, they will feel cold. For balconies, since the balcony faces the outside directly, when the nearby windows are not airtight, cold wind in winter may enter the balcony through the gaps in the windows, making users feel colder when they are on the balcony. To solve the above problems, usually users purchase additional air conditioners and install them in small spaces to achieve the purpose of heating or dehumidification. However, the cost of purchasing additional air conditioners is relatively high and it requires occupying indoor space. Moreover, the dehumidification of air conditioners is not applicable to the returning south weather, which will cause the indoor temperature to be lower and affect the user experience. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat pump clothes dryer with a heating function, which can dry clothes and heat the indoor environment at the same time.

[0005] Another purpose of the present invention is to provide a heat pump clothes dryer with a heating function, which can dry clothes, heat, and dehumidify the indoor environment at the same time.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A heat pump clothes dryer with a heating function includes a box body provided with a communication port, a clothes dryer air duct installed on the box body and communicating with the communication port, an evaporator and a condenser located in the clothes dryer air duct, an air inlet and an air outlet located in the box body and both communicating with the clothes dryer air duct, a first wind deflector arranged between the air inlet and the air outlet, a second wind deflector arranged at the communication position between the clothes dryer air duct and the communication port, an exhaust pipe and a corrugated pipe both communicating with the clothes dryer air duct, the air inlet communicating with the indoor environment, and the air outlet communicating with a connecting pipe;

[0008] In heating mode, the first windshield isolates the dryer air duct between the air inlet and the air outlet, and the second windshield isolates the dryer air duct from the connecting port. Indoor air enters the dryer air duct through the air inlet and is heated by the condenser, and is finally discharged to the room through the exhaust pipe. At the same time, outdoor air enters the dryer air duct through the bellows and is cooled by the evaporator, and is finally discharged to the outside through the connecting pipe.

[0009] Preferably, the air outlet is also connected to the indoor room. When in dehumidification mode, the air inlet and the air outlet are both opened, the bellows, the connecting pipe and the exhaust pipe are all closed, and the first wind shield separates part of the dryer air duct between the air inlet and the air outlet. Indoor air flows into the dryer air duct through the air inlet and is heated by the condenser, and is then cooled by the evaporator and discharged into the indoor room through the air outlet.

[0010] Preferably, an exhaust fan is provided at the air outlet, and the exhaust fan is configured to draw air in the air duct of the dryer into the room or into the connecting pipe.

[0011] Preferably, a valve plate is rotatably provided in the exhaust pipe, and the valve plate can close or open the exhaust pipe.

[0012] Preferably, a heating mode driving motor is further included, wherein the output end of the heating mode driving motor is drivingly connected to the second wind shield plate and the valve plate, and can synchronously drive the second wind shield plate and the valve plate to rotate.

[0013] Preferably, a second rotating shaft is fixed to the second wind shield plate, and is rotatably disposed at a communication position between the dryer air duct and the communication port via the second rotating shaft.

[0014] Preferably, it also includes a first block and a second block, the second wind shield can be rotated to abut against the first block to cut off the connection between the dryer air duct and the connecting port, and the second wind shield can be rotated to abut against the second block to enable the connection between the dryer air duct and the connecting port.

[0015] Preferably, a first rotating shaft is fixed to the first wind shield plate, and is rotatably disposed in the air duct of the clothes dryer via the first rotating shaft.

[0016] Preferably, the dryer further comprises a first sealing sheet and a second sealing sheet disposed in the air duct of the clothes dryer, wherein the first sealing sheet is configured to close and open the air inlet, and the second sealing sheet is configured to close and open the air outlet.

[0017] Preferably, it further includes a driving assembly, the driving assembly includes a dual-axis driving motor, a driving gear and a worm driven by the dual-axis driving motor to rotate. The driving gear meshes with a first driven gear and a second driven gear on both sides. The first driven gear is connected to a first rotating rod, the first rotating rod is connected to the first sealing piece, the second driven gear is connected to a second rotating rod, the second rotating rod is connected to the second sealing piece, the worm is in transmission connection with a worm gear, and the worm gear is fixedly connected to the first rotating shaft.

[0018] Advantages of the present invention: When heating, part of the dryer air duct between the air inlet and the air outlet is blocked by the first wind deflector, and the connection between the dryer air duct and the communication port is blocked by the second wind deflector. Indoor air enters the dryer air duct through the air inlet and is heated by the condenser, and finally discharged into the room through the exhaust pipe. At the same time, outdoor air enters the dryer air duct through the corrugated pipe and is cooled by the evaporator, and finally discharged to the outside through the connecting pipe. When drying clothes is needed, part of the dryer air duct between the air inlet and the air outlet is conducted through the first wind deflector, the dryer air duct and the communication port are conducted through the second wind deflector, the connection with the outside of the connecting pipe is closed, and the air inlet and the air outlet are closed. At this time, normal clothes drying can be carried out.

[0019] With the above structure, the present invention only needs to set an air inlet, an air outlet, a first wind deflector, a connecting pipe, a second wind deflector, an exhaust pipe and a corrugated pipe to realize the drying and heating functions of the heat pump dryer, without the need to additionally install equipment such as air conditioners, saving the procurement cost and not occupying indoor space due to the procurement of equipment. Moreover, the present invention only needs the heat pump system of the heat pump dryer itself to realize the heating function, without the need to add other functional components, further reducing the use cost. In addition, the present invention can be applied to heating in various narrow spaces, effectively improving the comfort of narrow spaces.

[0020] Furthermore, the heat pump dryer with a heating function in this embodiment also has a dehumidification mode. It only needs to open the air inlet and the air outlet, close both the connecting pipe and the exhaust pipe, and the first wind deflector blocks part of the dryer air duct between the air inlet and the air outlet. Indoor air flows into the dryer air duct through the air inlet and is heated by the condenser, and then cooled by the evaporator and discharged into the room through the air outlet. The dehumidification function of the heat pump dryer with a heating function is further increased, realizing the multi-function of the heat pump dryer with a heating function and improving the user experience. Description of the Drawings

[0021] Figure 1 is a top view cross-sectional view of the heat pump dryer with a heating function provided by Embodiment 1 of the present invention after removing the cylinder;

[0022] Figure 2 is a rear view of the heat pump dryer with a heating function provided by Embodiment 1 of the present invention;

[0023] Figure 3 It is a partial front view showing the air inlet, air outlet, and first wind deflector provided in the first embodiment of the present invention;

[0024] Figure 4 It is a partial top view showing the air inlet, air outlet, and first wind deflector provided in the first embodiment of the present invention;

[0025] Figure 5 It is a partial front view showing the second wind deflector and the connecting pipe provided in the first embodiment of the present invention;

[0026] Figure 6 It is a partial top view showing the second wind deflector and the connecting pipe provided in the first embodiment of the present invention;

[0027] Figure 7 It is a partial front view showing the first housing provided in the first embodiment of the present invention;

[0028] Figure 8 It is a partial top view showing the first housing provided in the first embodiment of the present invention;

[0029] Figure 9 It is a schematic structural view of the box body provided in the first embodiment of the present invention, showing the mounting holes.

[0030] In the figure:

[0031] 1. Evaporator; 2. Condenser; 3. Air inlet; 4. Air outlet; 5. First wind deflector; 6. Second wind deflector; 7. Exhaust pipe; 8. Valve plate; 9. Heating mode drive motor; 10. Second rotating shaft; 11. First stop block; 12. Second stop block; 13. First rotating shaft; 14. First sealing piece; 15. Second sealing piece; 16. Biaxial drive motor; 17. Driving gear; 18. Worm; 19. First driven gear; 20. Second driven gear; 21. First rotating rod; 22. Second rotating rod; 23. Worm gear; 24. First limit block; 25. Second limit block; 26. Third limit block; 27. Fourth limit block; 28. First housing; 29. Driving gear; 30. Third driven gear; 31. Fourth driven gear; 32. Second housing; 33. Box body; 331. Mounting hole. Detailed implementation manners

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention are shown in the drawings, rather than all the structures.

[0033] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the case where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] Embodiment 1

[0037] This embodiment provides a heat pump dryer with a heating function, which has two modes: a drying mode and a heating mode. In the drying mode, the components used for drying are all prior arts. For example, it includes a heat pump system, which includes a compressor, an evaporator 1, a throttling element, and a condenser 2 connected in sequence. The evaporator 1 and the condenser 2 are placed in a dryer air duct, and the dryer air duct is installed on the box body 33 of the multi-functional heat pump dryer. And a communication port (not shown in the figure) communicating with the cylinder body of the multi-functional heat pump dryer is provided at the rear of the box body 33. The dryer air duct can communicate with the communication port to realize the communication of the air flow and the cylinder body, and the drying operation of the clothes is realized through this heat pump system. The above heating mode mainly refers to the heating of a narrow indoor space (specifically, the heat pump dryer with a heating function is placed in a narrow space, and then the narrow space can be heated). It can borrow the evaporator 1 and the condenser 2 used for the drying function to realize the heating of the narrow indoor space, so that when the user is in this narrow space position, they will not feel cold, achieving the purpose of improving the user experience.

[0038] As Figures 1-6 shown, the heat pump dryer with a heating function of this embodiment, in addition to including a dryer air duct, an evaporator 1, and a condenser 2, also includes an air inlet 3, an air outlet 4, a first wind baffle 5, a second wind baffle 6, an exhaust pipe 7, a corrugated pipe (not shown in the figure), and a connecting pipe (not shown in the figure). The air inlet 3 and the air outlet 4 are both located inside the box body 33 and at the bottom. The air inlet 3 communicates with the dryer air duct and the indoor respectively, and the air outlet 4 communicates with the dryer air duct and the connecting pipe respectively. The above corrugated pipe communicates with the dryer air duct. Indoor air can enter the dryer air duct through the air inlet 3, be heated by the condenser 2, and be discharged into the room through the exhaust pipe 7. Outdoor air can enter the dryer air duct through the corrugated pipe, be cooled by the evaporator 1, and be discharged to the outside through the air outlet 4 and the connecting pipe.

[0039] In this embodiment, the above air inlet 3 and air outlet 4 can be directly opened on the dryer air duct, and the air inlet 3 can communicate with the indoor through a pipeline. That is, a through hole is opened on the box body of the heat pump dryer with a heating function, one end of the pipeline passes through the through hole and communicates with the air inlet 3, and the other end directly communicates with the indoor. And preferably, the above pipeline can be arranged at the bottom of the heat pump dryer with a heating function, or installed on the heat pump dryer with a heating function in a non-embedded manner.

[0040] The above-mentioned connecting pipe can enable the air in the air duct of the dryer to flow to the outside. One end of the connecting pipe is connected to the air outlet 4, and the other end can directly lead to the outside, or the other end of the connecting pipe is connected to the public drainage pipe or public exhaust pipe existing in a narrow space. The air in the dryer air duct can enter the connecting pipe through the air outlet 4 and be discharged into the public drainage pipe or public exhaust pipe through the connecting pipe. It should be noted that the end of the above-mentioned connecting pipe extending into the public drainage pipe or public exhaust pipe is parallel to the side wall of the public drainage pipe or public exhaust pipe, and the arrangement direction of its port should be the same as the drainage direction of the public drainage pipe or the exhaust direction of the public exhaust pipe. Thus, it is avoided that the drainage of the public drainage pipe or the exhaust of the public exhaust pipe affects the discharge of the air in the dryer air duct by the connecting pipe.

[0041] The above-mentioned corrugated pipe can enable the outdoor air to flow into the dryer air duct. As Figure 9 shown, in this embodiment, the above-mentioned corrugated pipe can be installed by setting an installation hole 331 on the box body 33. Specifically, the installation hole 331 is arranged at the lower position of the drum door of the multi-functional heat pump dryer. One end of the corrugated pipe passes through the installation hole 331 and is connected to the dryer air duct, and the other end can directly lead to the outside, or the other end of the connecting pipe is connected to the public drainage pipe or public exhaust pipe existing in a narrow space. The outdoor air can enter the dryer air duct through the corrugated pipe. The end of the above-mentioned connecting pipe extending into the public drainage pipe or public exhaust pipe is parallel to the side wall of the public drainage pipe or public exhaust pipe, and the arrangement direction of its port should be the same as the drainage direction of the public drainage pipe or the exhaust direction of the public exhaust pipe. Thus, it is avoided that the drainage of the public drainage pipe or the exhaust of the public exhaust pipe affects the flow of the outdoor air to the corrugated pipe.

[0042] Furthermore, the distance between the end of the above-mentioned corrugated pipe extending into the public drainage pipe or public exhaust pipe and the end of the above-mentioned connecting pipe extending into the public drainage pipe or public exhaust pipe should be far enough. Preferably, the corrugated pipe is located above the connecting pipe, so as to prevent the cold air discharged from the connecting pipe from directly entering the dryer air duct through the corrugated pipe and affecting the heating effect. Preferably, as Figure 3 shown, a first sealing piece 14 and a second sealing piece 15 are further arranged in the above-mentioned dryer air duct. The first sealing piece 14 is configured to close and open the air inlet 3, and the second sealing piece 15 is configured to close and open the air outlet 4. That is, when the heat pump dryer with a heating function is in the drying function state, the first sealing piece 14 closes the air inlet 3, and the second sealing piece 15 closes the air outlet 4. The heat pump dryer with a heating function dries the clothes through the heat pump system. When the heat pump dryer with a heating function is in the heating function state, the first sealing piece 14 opens the air inlet 3, and the second sealing piece 15 opens the air outlet 4.

[0043] Further, both the first sealing piece 14 and the second sealing piece 15 are rotatably arranged inside the air duct of the dryer, which can reduce the space occupation outside the air duct of the dryer. When the air inlet 3 and the air outlet 4 are opened, both the first sealing piece 14 and the second sealing piece 15 rotate 180°, thereby avoiding the resistance of the first sealing piece 14 and the second sealing piece 15 to air flow, that is, reducing the air resistance generated by the arrangement of the first sealing piece 14 and the second sealing piece 15. In addition, when the drying function is performed, the first sealing piece 14 and the second sealing piece 15 are arranged inside the air duct of the dryer and can also be affected by the air pressure, automatically pressing tightly against the side wall of the air duct of the dryer to better seal the air inlet 3 and the air outlet 4, so that the air in the air duct of the dryer will not leak through the air inlet 3 or the air outlet 4, ensuring the drying effect.

[0044] The above-mentioned air inlet 3 and air outlet 4 can be circular structures. Correspondingly, the first sealing piece 14 and the second sealing piece 15 are also circular plate-like structures, and the areas of the first sealing piece 14 and the second sealing piece 15 are larger than the areas of the corresponding air inlet 3 and air outlet 4. In addition, in order to better achieve the sealing effect, this embodiment can also be provided with sealing rubber strips (not shown in the figure) on the first sealing piece 14 and the second sealing piece 15, so that when the first sealing piece 14 and the second sealing piece 15 seal the air inlet 3 and the air outlet 4, a part of the sealing rubber strip can be embedded into the air inlet 3 and the air outlet 4, thereby achieving the purpose of completely avoiding air leakage.

[0045] As Figure 3 and Figure 4 shown, the above-mentioned first wind baffle 5 is arranged between the air inlet 3 and the air outlet 4. When the heat pump dryer with a heating function is heating, it can partition a part of the air duct of the dryer between the air inlet 3 and the air outlet 4. Thus, when heating, the hot air discharged from the air outlet will not enter the air duct of the dryer from the air inlet 3.

[0046] It can be understood that in one embodiment, the above-mentioned first wind baffle 5 can be slidably placed in the air duct of the dryer, that is, it is slidable relative to the air duct of the dryer, and thus the air duct of the dryer can be partitioned and conducted through sliding. Of course, during the sliding process, it is necessary to ensure the sealing between the first wind baffle 5 and the air duct of the dryer to avoid air leakage.

[0047] In another embodiment, as Figure 3 shown, the above-mentioned first wind baffle 5 is rotatably arranged in the air duct of the dryer. Specifically, the first wind baffle 5 can be fixedly provided with a first rotating shaft 13, and the first rotating shaft 13 is rotatably connected to the air duct of the dryer. When it is necessary to partition the air duct of the dryer, the first wind baffle 5 rotates until its plate surface is perpendicular to the air flow direction in the air duct of the dryer, and then the air duct of the dryer can be partitioned. The first rotating shaft 13 of the above-mentioned first wind baffle 5 is perpendicular to the air flow direction in the air duct of the dryer, and it can be asFigure 4 The longitudinal direction shown, which can also be the front - rear direction, can achieve the partition of the air duct of the dryer.

[0048] A first limiting block 24 and a second limiting block 25 are arranged in the air duct of the dryer. When the first wind - blocking plate 5 partitions a part of the air duct of the dryer, the end parts of the first wind - blocking plate 5 on both sides of the first rotating shaft 13 respectively abut against the first limiting block 24 and the second limiting block 25. That is to say, when the first wind - blocking plate 5 rotates to partition the air duct of the dryer, its two ends are respectively limited by the first limiting block 24 and the second limiting block 25 to prevent the first wind - blocking plate 5 from rotating excessively and failing to completely partition the air duct of the dryer. Preferably, the end part of the first wind - blocking plate 5 is in surface contact with the first limiting block 24 and the second limiting block 25, so that the contact positions between the first wind - blocking plate 5 and the first limiting block 24 and the second limiting block 25 are also in a sealed state, further achieving the purpose of completely partitioning the air duct of the dryer. As Figure 3 shown, when the end parts of the first wind - blocking plate 5 on both sides of the first rotating shaft 13 respectively abut against the first limiting block 24 and the second limiting block 25, one end abuts against the right side of the first limiting block 24, and the other end abuts against the left side of the second limiting block 25.

[0049] More preferably, the first limiting block 24 is arranged above the second limiting block 25 along the longitudinal direction, and the distance from the axis of the first rotating shaft 13 to the second limiting block 25 is greater than the distance from the axis of the first rotating shaft 13 to the first limiting block 24, so that the area of the upper part of the first wind - blocking plate 5 divided by the first rotating shaft 13 is smaller than the area of the lower part. Through the setting of this structure, compared with the structure where the first rotating shaft 13 is arranged at one end of the first wind - blocking plate 5, this embodiment can reduce the space required for the first wind - blocking plate 5 to rotate and will not interfere with the air inlet 3 or the air outlet 4 during rotation; compared with the structure where the first rotating shaft 13 is arranged at the center of the first wind - blocking plate 5, when the first wind - blocking plate 5 of this embodiment rotates to abut against the first limiting block 24 and the second limiting block 25, that is, when the first wind - blocking plate 5 rotates to the longitudinal direction, the wind pressure from the evaporator 1 is simultaneously applied to the upper and lower parts of the first wind - blocking plate 5 on both sides of the first rotating shaft 13. Since the area of the lower part is larger, the wind pressure it receives is greater, so that the surface contact between the first wind - blocking plate 5 and the first limiting block 24 and the second limiting block 25 is tighter, further improving the sealing and partitioning effect of the first wind - blocking plate 5 and ensuring the reliability of the partition. Further, it should be noted that the first limiting block 24 and the second limiting block 25 of this embodiment are strip - shaped structures that reach both ends, and at least the surface of the first limiting block 25 in contact with the first wind - blocking plate 5 has elasticity, so that when the first wind - blocking plate 5 abuts against the first limiting block 24 and the second limiting block 25, it can ensure more sufficient contact and improve the sealing effect.

[0050] In this embodiment, preferably, the longitudinal position of the air outlet 4 is higher than that of the air inlet 3. That is to say, as Figure 3 shown, the air outlet 4 is arranged at the upper end of the side wall of the dryer air duct, and the air inlet 3 is arranged at the lower end of the side wall of the dryer air duct. This structural arrangement can avoid interference between the air inlet 3 and the air outlet 4 and the first wind baffle 5. In addition, the above structure can also make the overall structure of this embodiment more compact in the lateral space, without affecting the design and layout of the existing products at all, and without increasing the size and volume of the existing products.

[0051] It can be understood that a third limiting block 26 can also be provided in the dryer air duct in this embodiment. The third limiting block 26 is arranged on the side close to the air inlet 3 along the Figure 3 horizontal direction as shown. When the first wind baffle 5 rotates to one end abuts against the third limiting block 26, the part of the dryer air duct between the air inlet 3 and the air outlet 4 is conducted, that is, the first wind baffle 5 no longer blocks the dryer air duct. At this time, usually the drying and dehumidifying dual-purpose heat pump dryer is performing the drying operation, and the air inside the cylinder of the drying and dehumidifying dual-purpose heat pump dryer circulates internally without being interfered by the first wind baffle 5, ensuring that the interference of the first wind baffle 5 on the air flow is minimized, that is, the wind resistance is reduced, and thus the drying efficiency is improved.

[0052] Furthermore, in this embodiment, a fourth limiting block 27 can also be arranged on the side close to the air outlet 4 along the Figure 3 horizontal direction as shown. The connection line between the third limiting block 26 and the fourth limiting block 27 is perpendicular to the connection line between the above-mentioned first limiting block 24 and the second limiting block 25. When the first wind baffle 5 rotates to one end abuts against the third limiting block 26, the other end abuts against the fourth limiting block 27 to better limit the first wind baffle 5. Preferably, the third limiting block 26 and the fourth limiting block 27 are horizontally connected, so that the interference of the third limiting block 26 and the fourth limiting block 27 on the air flow is minimized.

[0053] In this embodiment, the rotation of the first wind baffle 5, the rotation of the first sealing piece 14 and the rotation of the second sealing piece 15 are all driven by a driving assembly. Exemplarily, as Figure 3 and Figure 4As shown in the figure, the above-mentioned drive assembly includes a biaxial drive motor 16. The two output shafts of the biaxial drive motor 16 are arranged longitudinally. The output shaft located at the upper end is connected to the driving gear 17. There are a first driven gear 19 and a second driven gear 20 on both sides of the driving gear 17. The first driven gear 19 is connected to a first rotating rod 21, and the first rotating rod 21 is connected to the first sealing piece 14. The second driven gear 20 is connected to a second rotating rod 22, and the second rotating rod 22 is connected to the second sealing piece 15. The biaxial drive motor 16 drives the driving gear 17 to rotate, and the driving gear 17 drives the first driven gear 19 and the second driven gear 20 to rotate synchronously and in the same direction. Furthermore, the first sealing piece 14 and the second sealing piece 15 can rotate simultaneously to open or close the air inlet 3 and the air outlet 4.

[0054] The output shaft located at the lower end of the above-mentioned biaxial drive motor 16 is connected to a worm 18. The worm 18 is in transmission connection with a worm gear 23. The worm gear 23 is fixedly connected to the above-mentioned first rotating shaft 13. So that when the biaxial drive motor 16 drives the worm 18 to rotate, the worm gear 23 can drive the first rotating shaft 13 and the first wind deflector 5 to rotate. In this embodiment, it is preferably to adopt the structure of the worm 18 and the worm gear 23 to realize the rotation of the first wind deflector 5. When the first wind deflector 5 rotates to the limit position (i.e., at the first limit block 24 or the third limit block 26), the characteristics of the worm gear 23 and the worm 18 determine that the worm 18 will play a role of limiting and locking the worm gear 23, ensuring that the first wind deflector 5 is in the accurate position, tightly sealed when the air duct of the dryer needs to be sealed off, and when the air duct of the dryer needs to be conducted, the air flow has no resistance.

[0055] In this embodiment, through the above-mentioned drive assembly, it can simultaneously drive the first wind deflector 5, the first sealing piece 14 and the second sealing piece 15 to rotate. Furthermore, when heating, the air inlet 3 and the air outlet 4 can be opened simultaneously, and at the same time, the first wind deflector 5 can be rotated to the position where the air duct of the dryer is blocked, improving the reaction speed of the first wind deflector 5, the first sealing piece 14 and the second sealing piece 15. Moreover, in this embodiment, only one biaxial drive motor 16 can realize the rotation of the first wind deflector 5, the first sealing piece 14 and the second sealing piece 15, reducing the manufacturing cost of the entire heat pump dryer with a heating function.

[0056] In addition, by designing the transmission ratio of the worm 18 and the worm gear 23, the worm 18 and the worm gear 23 drive the first wind deflector 5 to rotate. The stroke of the worm gear 23 only needs to rotate 1 / 4 turn, and the first wind deflector 5 can rotate 90°, while the first sealing piece 14 and the second sealing piece 15 will rotate 180°.

[0057] As a preferred technical solution, the above-mentioned dual-axis drive motor 16 can be a torque motor. When it drives the first wind deflector 5 to rotate to the limit position (i.e., at the first limit block 24 or the third limit block 26), the resistance received by the first wind deflector 5 will be transmitted to the torque motor, and at this time, the torque motor can immediately cut off the power supply and stop running.

[0058] Preferably, as Figure 7 and Figure 8 shown, in this embodiment, the air inlet 3, the air outlet 4, the first wind deflector 5, the first limit block 24, the second limit block 25, the third limit block 26, the fourth limit block 27, the first sealing piece 14, the second sealing piece 15 and the drive assembly can also be integrated into a whole component, and then the whole component is placed in the dryer air duct. Specifically, refer to Figure 7 and Figure 8 , in the heat pump dryer with a heating function of this embodiment, a first housing 28 is provided in the dryer air duct, and the above-mentioned air inlet 3, air outlet 4, wind deflector, first limit block 24, second limit block 25, third limit block 26, fourth limit block 27, first sealing piece 14, second sealing piece 15 and drive assembly are all placed on the first housing 28. By integrating into a whole component, it can make the above-mentioned components of this embodiment form a detachable whole component, and thus when problems occur, it is convenient for maintenance and replacement.

[0059] Both ends of the above-mentioned first housing 28 are respectively communicated with the dryer air duct, so that air can enter the dryer air duct through the first housing 28 and be heated by the condenser 2, and the air cooled by the evaporator 1 enters the first housing 28.

[0060] It should be noted that in this embodiment, the driving gear 17, the first driven gear 19 and the second driven gear 20 of the above-mentioned driving component group are arranged outside the first housing 28 to avoid interfering with the air flow when they are arranged inside the first housing 28.

[0061] In this embodiment, the above-mentioned second wind deflector 6 is arranged at the communicating position between the dryer air duct and the communicating port, and it can cut off the communication between the dryer air duct and the communicating port, so that air cannot enter the cylinder through the communicating port. As Figure 5 and Figure 6 shown, the above-mentioned second wind deflector 6 is fixed with a second rotating shaft 10, and it can be arranged at the communicating position between the dryer air duct and the communicating port through the second rotating shaft 10. When it is necessary to cut off the communication between the dryer air duct and the communicating port, the second wind deflector 6 rotates until its plate surface is perpendicular to the air flow direction in the dryer air duct, and the communication between the dryer air duct and the communicating port can be cut off. When it is necessary to conduct the communication between the dryer air duct and the communicating port, the second wind deflector 6 rotates until its plate surface is parallel to the air flow direction in the dryer air duct. At this time, the communication between the dryer air duct and the communicating port can be conducted, and at this time, the second wind deflector 6 is inFigure 6 The horizontal state shown has the least interference with the air flow, that is, it reduces the wind resistance.

[0062] At the connecting position of the air duct of the dryer and the connecting port, a first stop block 11 and a second stop block 12 are provided. When the second wind deflector 6 rotates to the position where the connection between the air duct of the dryer and the connecting port is blocked, the first stop block 11 can abut against the second wind deflector 6 and limit the second wind deflector 6. When the second wind deflector 6 rotates to conduct the connection between the air duct of the dryer and the connecting port, the second stop block 12 can abut against the second wind deflector 6 and limit the second wind deflector 6.

[0063] A valve plate 8 is rotatably arranged in the exhaust pipe 7, and the valve plate 8 can rotate to close or open the exhaust pipe 7. In addition, one end of the exhaust pipe 7 of this embodiment extends out of the heat pump dryer with a heating function and is communicated with the room.

[0064] Preferably, the exhaust pipe 7 can be a flat pipe, which does not occupy too much space, so that the overall volume of the heat pump dryer with a heating function is relatively small.

[0065] In this embodiment, the second wind deflector 6 and the valve plate 8 can be driven to rotate by a heating mode driving motor 9. For example, the output end of the heating mode driving motor 9 is connected to a driving gear 29. The end of the second rotating shaft 10 is fixedly connected with a third driven gear 30 meshing with the driving gear 29. One end of the valve plate 8 is fixedly connected with a fourth driven gear 31 meshing with the driving gear 29. By driving the driving gear 29 to rotate by the driving motor, the driving gear 29 can drive the third driven gear 30 and the fourth driven gear 31 to rotate simultaneously, thereby driving the second wind deflector 6 and the valve plate 8 to rotate synchronously.

[0066] Preferably, the heating mode driving motor 9 is preferably a torque motor. When it drives the second wind deflector 6 to rotate to the limiting position (i.e., at the first stop block 11 or the second stop block 12), the resistance received by the second wind deflector 6 will be transmitted to the torque motor, and at this time, the torque motor can immediately cut off the power supply and stop running.

[0067] In this embodiment, the second rotating shaft 10 is preferably eccentrically arranged on the second wind deflector 6. Through the setting of this structure, on the one hand, the size of the third driven gear 30 can be reduced, and the cost can be reduced. More importantly, through this structure, the resistance to the air flow during the normal drying process of the multi-functional heat pump dryer is the smallest. And even if the refrigeration mode driving motor 9 completely fails, it will not affect the normal use of the most core drying function of the multi-functional heat pump dryer.

[0068] Preferably, in this embodiment, a second housing 32 may be provided at the connection position between the dryer air duct and the connection port, and the two ends of the second housing 32 are respectively connected to the dryer air duct and the connection port, and the second windshield 6, the heating mode driving motor 9, the second rotating shaft 10, the first stopper 11 and the second stopper 12 may all be installed in the second housing 32, and one end of the exhaust pipe 7 is connected to the second housing 32. The driving gear 29, the third driven gear 30 and the fourth driven gear 31 are provided outside the second housing 32 to avoid interference with the air flow when they are provided inside the second housing 32. Through the arrangement of this structure, the second windshield 6, the second rotating shaft 10, the first stopper 11 and the second stopper 12, the heating mode driving motor 9, the driving gear 29, the third driven gear 30 and the fourth driven gear 31 are integrated with the second housing 32 into an integral component, so that the integral component can be disassembled, and thus it is convenient for maintenance and replacement when problems occur.

[0069] When the heat pump dryer with heating function of this embodiment is in use, its initial state is the state of the drying mode, at this time, the air inlet 3 is closed by the first sealing plate 14, the air outlet 4 is closed by the second sealing plate 15, the first wind deflector 5 rotates to abut against the third limit block 26 and the fourth limit block 27 to make part of the dryer air duct between the air inlet 3 and the air outlet 4 conductive, the second wind deflector 6 rotates to abut against the second block 12 to make the dryer air duct and the connecting port conductive, the valve plate 8 rotates to close the exhaust pipe 7, the bellows is in a closed state (specifically, a valve can be provided on the bellows to achieve its closing and opening), and the air in the cylinder circulates through the heat pump system to achieve drying of the clothes.

[0070] When heating is required, the first sealing sheet 14 opens the air inlet 3, the second sealing sheet 15 opens the air outlet 4, the first wind shield 5 rotates to abut against the first limit block 24 and the second limit block 25 to block part of the dryer air duct between the air inlet 3 and the air outlet 4, the second wind shield 6 rotates to abut against the first stopper 11 to block the connection between the dryer air duct and the connecting port, the valve plate 8 rotates to open the exhaust pipe 7, and the bellows is opened. At this time, two cycles of indoor heating and outdoor cooling are formed, wherein the indoor heating cycle is specifically as follows: indoor air enters the dryer air duct through the air inlet 3, and is then heated by the condenser 2 in the dryer air duct, and then is discharged to the room through the exhaust pipe 7. The outdoor cooling cycle is specifically as follows: outdoor air enters the dryer air duct through the bellows, is cooled by the evaporator 1, and then is discharged to the outside through the air outlet 4 and the connecting pipe.

[0071] It should be pointed out that in order to efficiently discharge the hot air in the dryer duct into the room, an exhaust fan (not shown in the figure) can be set at the air outlet 4 to draw the hot air in the dryer duct to achieve a better heating effect.

[0072] At this time, when heating, the drum of the heat pump dryer with heating function in this embodiment does not need to rotate, so as to achieve the purpose of saving energy.

[0073] With the above structure in this embodiment, indoor heating can be realized without additionally installing equipment such as air conditioners, saving the cost of purchasing air conditioners, and not occupying indoor space due to purchasing equipment. Moreover, the present invention only needs the heat pump system inherent in the heat pump dryer itself to realize the heating function, without adding other functional components, further reducing the use cost. In addition, the present invention can be applied to heating in various narrow spaces, effectively improving the comfort of narrow spaces.

[0074] Embodiment 2

[0075] The difference between this embodiment and Embodiment 1 is that the heat pump dryer with heating function in this embodiment also has a dehumidification function. Specifically, the structure of the heat pump dryer with heating function in this embodiment is basically the same as that of Embodiment 1, and the only difference is that the air outlet 4 communicates with the room, specifically, it can communicate with the room through a pipeline. That is to say, the air outlet 4 is respectively communicated with the pipeline and the connecting pipe, and the air outlet 4 should be selectively communicated with the connecting pipe or the pipeline. For example, it can connect the pipeline and the connecting pipe to the air outlet 4 in the way of an electromagnetic three-way valve (not shown in the figure).

[0076] When dehumidifying, the electromagnetic three-way valve cuts off the connection between the air outlet 4 and the connecting pipe, and makes the air outlet 4 communicate with the pipeline. Subsequently, the driving assembly drives the first sealing piece 14 to open the air inlet 3, and the second sealing piece 15 to open the air outlet 4. The first wind deflector 5 rotates to abut against the first limiting block 24 and the second limiting block 25 to partition a part of the dryer air duct between the air inlet 3 and the air outlet 4. The second wind deflector 6 rotates to the second stop block 12 to communicate the dryer air duct with the communication port, and the valve plate 8 rotates to close the exhaust pipe 7. Subsequently, the indoor humid air can flow into the dryer air duct through the air inlet 3 and be heated by the condenser 2, and then be cooled by the evaporator 1 to form dry air, and then flow into the room through the air outlet 4. After circulating for a certain time, the dehumidification of the room can be completed. In this embodiment, by first heating the air through the condenser 2 and then cooling the heated air through the evaporator 1, the relative temperature difference between the front and back of the air can be further increased, so that the moisture in the air cooled by the evaporator 1 condenses more thoroughly and the water is separated more completely, thereby achieving better dehumidification of the indoor air. Moreover, in this embodiment, the process of first heating the air through the condenser 2 and then cooling the heated air through the evaporator 1, rather than first passing through the evaporator 1 and then through the condenser 2, is also because in the structure of the existing dryer, the space on the condenser side is very small and is not sufficient to place the above-mentioned air inlet 3, air outlet 4 and wind deflector 5 and other structures. Preferably, when dehumidifying, the cylinder of the multifunctional dryer does not rotate to achieve the purpose of energy saving. It should be noted that when dehumidifying, the air flow can be driven only by the fan at the condenser 2 of the heat pump dryer with a heating function, or the fan at the condenser 2 and the exhaust fan at the air outlet 4 can operate simultaneously.

[0077] When heating is required, the electromagnetic three-way valve cuts off the connection between the air outlet 4 and the pipeline, and makes the air outlet 4 communicate with the connecting pipe. Subsequently, the driving assembly drives the first sealing piece 14 to open the air inlet 3, and the second sealing piece 15 to open the air outlet 4. The first wind deflector 5 rotates to abut against the first limiting block 24 and the second limiting block 25 to partition a part of the dryer air duct between the air inlet 3 and the air outlet 4. The second wind deflector 6 rotates to abut against the first stop block 11 to cut off the communication between the dryer air duct and the communication port. The valve plate 8 rotates to open the exhaust pipe 7, and the corrugated pipe is in an open state. At this time, two cycles of indoor heating and outdoor heat discharge will be formed. The specific indoor heating cycle is as follows: indoor air enters the dryer air duct through the air inlet 3, is heated by the condenser 2 in the dryer air duct, and then is discharged into the room through the exhaust pipe 7. The specific outdoor cold discharge cycle is as follows: outdoor air enters the dryer air duct through the corrugated pipe, is cooled by the evaporator 1, and then is discharged to the outside through the air outlet 4 and the connecting pipe.

[0078] It should be noted that the pipeline connected to the air outlet 4 can be arranged at the bottom of the heat pump dryer with a heating function, or installed on the heat pump dryer with a heating function in a non-embedded manner. In addition, there should be a certain distance between the ports of the pipeline connected to the air inlet 3 and the pipeline connected to the air outlet 4 to prevent the air discharged from the air outlet 4 from directly entering the air inlet 3 during the dehumidification process, which may affect the dehumidification effect. In this embodiment, the pipeline connected to the air inlet 3 can be arranged on the side close to the wall at the bottom of the heat pump dryer with a heating function, and the pipeline connected to the air outlet 4 can be arranged on the side facing the room at the bottom of the heat pump dryer with a heating function.

[0079] The above-mentioned heat pump dryer with a heating function in this embodiment can realize three functions: drying clothes, dehumidifying, and heating, achieving the multi-purpose use of a heat pump dryer with a heating function, and further improving the user experience.

[0080] Embodiment Three

[0081] Based on Embodiment One or Embodiment Two, this embodiment improves the driving structures for driving the first wind deflector 5, the first sealing piece 14, and the second sealing piece 15, as well as the driving structures for driving the second wind deflector 6 and the valve plate 8.

[0082] Specifically, in this embodiment, the first wind deflector 5, the first sealing piece 14, and the second sealing piece 15 are not driven to rotate simultaneously by the driving component group. Instead, a first driving member and a second driving member are provided. The first driving member is drivingly connected to the first wind deflector 5 to drive the first wind deflector 5 to rotate, and the second driving member is drivingly connected to the first sealing piece 14 and the second sealing piece 15 to drive the first sealing piece 14 and the second sealing piece 15 to rotate. With the above structure in this embodiment, the rotation of the first wind deflector 5 and the rotation of the first sealing piece 14 and the second sealing piece 15 are separated. When one of them has a problem, only the faulty structure needs to be repaired or replaced, without affecting the components that are not faulty.

[0083] The above-mentioned first driving member can be a torque motor, and the second driving member can be a structure in which a torque motor drives a gear. Of course, it can also be other structures that can realize the rotation of the first sealing piece 14 and the second sealing piece 15. Or the second driving member can be set as two, one second driving member is drivingly connected to the first sealing piece 14, and the other second driving member is drivingly connected to the second sealing piece 15.

[0084] This embodiment is also provided with a third driving member and a fourth driving member, wherein the third driving member is used to drive the second windshield 6 to rotate, and the fourth driving member is used to drive the valve plate 8 to rotate, rather than the heating mode driving motor 9 in Embodiment 1 or Embodiment 2 driving the second windshield 6 and the valve plate 8 to rotate simultaneously. Through the third driving member and the fourth driving member, the rotation of the second windshield 6 and the rotation of the valve plate 8 are separated, and when one of them has a problem, only the structure with the problem needs to be repaired or replaced, without affecting the components that are not problematic.

[0085] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A heat pump dryer with a heating function, comprising a box body provided with a communication port, a dryer air duct installed on the box body and communicating with the communication port, and an evaporator (1) and a condenser (2) located in the dryer air duct, characterized in that, It further includes an air inlet (3) and an air outlet (4) located inside the cabinet and both communicating with the air duct of the dryer, a first wind baffle (5) disposed between the air inlet (3) and the air outlet (4), a second wind baffle (6) disposed at the communicating position between the air duct of the dryer and the communicating port, and an exhaust pipe (7) and a corrugated pipe both communicating with the air duct of the dryer. The air inlet (3) communicates with the interior of the room, and the air outlet (4) communicates with a connecting pipe; When in the heating mode, the first wind baffle (5) partitions a part of the air duct of the dryer between the air inlet (3) and the air outlet (4), and the second wind baffle (6) partitions the communication between the air duct of the dryer and the communicating port. Indoor air enters the air duct of the dryer through the air inlet (3) and is heated by the condenser (2), and finally is discharged into the room through the exhaust pipe (7). At the same time, outdoor air enters the air duct of the dryer through the corrugated pipe and is cooled by the evaporator (1), and finally is discharged to the outside through the connecting pipe; When in the clothes drying mode, the first wind baffle (5) conducts a part of the air duct of the dryer between the air inlet (3) and the air outlet (4), and the second wind baffle (6) conducts the communication between the air duct of the dryer and the communicating port. The communication between the connecting pipe and the outside is closed, and the air inlet (3) and the air outlet (4) are closed. At this time, normal clothes drying can be carried out.

2. The heat pump dryer with a heating function according to claim 1, characterized in that, The air outlet (4) also communicates with the interior of the room. When in the dehumidification mode, both the air inlet (3) and the air outlet (4) are opened, the corrugated pipe, the connecting pipe and the exhaust pipe (7) are all closed, and the first wind baffle (5) partitions a part of the air duct of the dryer between the air inlet (3) and the air outlet (4). Indoor air flows into the air duct of the dryer through the air inlet (3) and is heated by the condenser (2), and then is cooled by the evaporator (1) and discharged into the room through the air outlet (4).

3. The heat pump dryer with a heating function according to claim 2, wherein, A exhaust fan is provided at the air outlet (4), and the exhaust fan is configured to suck the air in the air duct of the dryer into the room or the connecting pipe.

4. The heat pump clothes dryer with a heating function according to claim 1, characterized in that, A valve plate (8) is rotatably provided in the exhaust pipe (7), and the valve plate (8) can close or open the exhaust pipe (7).

5. The heat pump dryer with a heating function according to claim 4, characterized in that, It further includes a heating mode driving motor (9), and the output end of the heating mode driving motor (9) is drivingly connected to the second wind baffle (6) and the valve plate (8), and can synchronously drive the second wind baffle (6) and the valve plate (8) to rotate.

6. The heat pump dryer with a heating function according to any one of claims 1-5, characterized in that, The second wind baffle (6) is fixed with a second rotating shaft (10), and is rotatably provided at the communicating position between the air duct of the dryer and the communicating port through the second rotating shaft (10).

7. The heat pump dryer with a heating function according to claim 1, wherein It further includes a first stop block (11) and a second stop block (12). The second wind baffle (6) can rotate to abut against the first stop block (11) to partition the communication between the air duct of the dryer and the communicating port, and the second wind baffle (6) can rotate to abut against the second stop block (12) to conduct the communication between the air duct of the dryer and the communicating port.

8. The heat pump dryer with a heating function according to any one of claims 1-6, characterized in that, The first wind deflector (5) is fixed with a first rotating shaft (13) and is rotatably arranged in the air duct of the dryer through the first rotating shaft (13).

9. The heat pump dryer with a heating function according to claim 8, characterized in that, It further includes a first sealing piece (14) and a second sealing piece (15) arranged in the air duct of the dryer. The first sealing piece (14) is configured to close and open the air inlet (3), and the second sealing piece (15) is configured to close and open the air outlet (4).

10. The heat pump dryer with a heating function according to claim 9, characterized in that, It further includes a driving assembly. The driving assembly includes a double-shaft driving motor (16), a driving gear (17) driven to rotate by the double-shaft driving motor (16), and a worm (18). The driving gear (17) is meshed with a first driven gear (19) and a second driven gear (20) on both sides. The first driven gear (19) is connected with a first rotating rod (21), and the first rotating rod (21) is connected to the first sealing piece (14). The second driven gear (20) is connected with a second rotating rod (22), and the second rotating rod (22) is connected to the second sealing piece (15). The worm (18) is in transmission connection with a worm wheel (23), and the worm wheel (23) is fixedly connected to the first rotating shaft (13).

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