Clothes drying equipment

Abstract

The utility model belongs to the technical field of clothes processing devices, and discloses clothes drying equipment. The clothes drying equipment comprises a machine shell, a clothes processing drum and a circulating air heating device. A circulating air duct is arranged in the shell; the clothes processing drum is rotatably arranged in the machine shell and comprises an air inlet and an air outlet which are communicated with the two ends of the circulating air duct respectively, an inlet of the circulating air duct is communicated with the air outlet, and an outlet of the circulating air duct is communicated with the air inlet; the circulating air heating device comprises an evaporator, a draught fan and a condenser which are sequentially arranged in the drying airflow direction in the circulating air duct, and the circulating air heating device can heat drying air in the circulating air duct. The fan is arranged between the evaporator and the condenser, under the suction effect of the fan, a negative pressure area can be formed in the clothes processing barrel, and air flowing into the circulating air duct from the air outlet of the clothes processing barrel only needs to overcome resistance of the evaporator and is driven by negative pressure in the clothes processing barrel to quickly penetrate through the condenser. Therefore, air pressure and air volume loss can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing treatment devices, in particular to a clothes drying device. Background Art

[0002] Clothes drying devices such as clothes dryers, care machines, bottom-washing and top-drying integrated machines, washing machines with a clothes drying function, etc. all have the function of drying clothes. Taking a clothes dryer as an example, the main function of the clothes dryer is to instantly evaporate the moisture in the washed clothes, so as to achieve the purpose of drying the clothes. The dehumidification energy consumption of the clothes dryer is mainly the latent heat consumed to turn the moisture contained in the clothes into water vapor.

[0003] Heat pump clothes dryers have a high energy efficiency ratio, better protect clothes, have a faster drying speed, and higher safety, so they are favored by users.

[0004] As Figure 1 shown, in the prior art, the layout of the evaporator, condenser and fan of the heat pump clothes dryer is as follows: the evaporator 10 is arranged at the inlet end of the heat pump air duct, the condenser 20 is located downstream of the evaporator 10, and the fan 30 is located at the outlet end of the heat pump air duct; adopting this layout, the drying gas initially entering the heat pump air duct needs to overcome the resistance at both the condenser 20 and the evaporator 10, resulting in a large loss of air volume and air pressure of the drying gas flowing out from the outlet end of the heat pump air duct, which affects the drying efficiency of the heat pump clothes dryer. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a clothes drying device, which can solve the technical problem that the drying efficiency of the clothes dryer in the prior art is affected due to large air volume and air pressure loss.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A clothes drying device, comprising:

[0008] A housing, in which a circulation air duct is arranged;

[0009] A clothes treatment cylinder, rotatably arranged in the housing, the clothes treatment cylinder includes an air inlet and an air outlet respectively connected to both ends of the circulation air duct, the inlet of the circulation air duct is communicated with the air outlet, and the outlet of the circulation air duct is communicated with the air inlet;

[0010] A circulation air heating device, including an evaporator, a fan and a condenser arranged in sequence along the drying air flow direction in the circulation air duct, and the circulation air heating device can heat the drying gas in the circulation air duct.

[0011] Optionally, the circulating air heating device further includes a first air diversion plate assembly, which is located in the circulating air duct and is arranged between the evaporator and the blower. The first air diversion plate assembly includes a plurality of first air diversion ducts, and along the flow direction of the drying gas in the circulating air duct, the flow area of the first air diversion ducts gradually decreases.

[0012] Optionally, the first air diversion plate assembly includes a plurality of first air diversion plates arranged in sequence, and a first air diversion duct is formed between two adjacent first air diversion plates.

[0013] Optionally, the circulating air heating device further includes a second air diversion plate assembly, which is located in the circulating air duct and is arranged between the blower and the condenser. The second air diversion plate assembly includes a plurality of second air diversion ducts, and along the flow direction of the drying gas in the circulating air duct, the flow area of the second air diversion ducts gradually increases.

[0014] Optionally, the second air diversion plate assembly includes a plurality of second air diversion plates arranged in sequence, and a second air diversion duct is formed between two adjacent second air diversion plates.

[0015] Optionally, the circulating air heating device further includes a compressor, and both the evaporator and the condenser are communicated with the compressor.

[0016] Optionally, an air outlet duct is arranged in the housing, and the air outlet duct communicates the air outlet of the laundry processing drum and the inlet of the circulating air duct; and / or

[0017] An air inlet duct is arranged in the housing, and the air inlet duct communicates the air inlet of the laundry processing drum and the outlet of the circulating air duct.

[0018] Optionally, the air outlet duct is arranged in the housing, and a first filter element is arranged in the air outlet duct.

[0019] Optionally, the air inlet duct is arranged in the housing, and a second filter element is arranged in the air inlet duct.

[0020] Optionally, the drying device further includes a drainage system, the drainage system is arranged in the housing, and the drainage system is connected to the evaporator.

[0021] Advantages of the utility model:

[0022] When the drying device provided by the present utility model is working, the clothes to be dried are placed in the clothes treatment cylinder. The fan of the circulating air heating device can realize the circulation of the drying gas in the circulation air duct. The evaporator and condenser of the circulating air heating device work together to dehumidify and heat the drying gas in the circulation air duct. The dehumidified and heated drying gas enters the clothes treatment cylinder through the air inlet of the clothes treatment cylinder to complete the drying of the clothes. The low-temperature and high-humidity gas flowing out of the clothes treatment cylinder enters the heating circulation air duct through the air outlet of the clothes treatment cylinder. The evaporator dehumidifies the low-temperature and high-humidity gas to form low-temperature and low-humidity gas. The low-temperature and low-humidity gas forms high-temperature and low-humidity drying gas after passing through the condenser.

[0023] Since the fan is arranged between the evaporator and the condenser, under the suction of the fan, a negative pressure area will be formed in the clothes treatment cylinder. The gas flowing from the air outlet of the clothes treatment cylinder into the circulation air duct only needs to overcome the resistance of the evaporator and then quickly pass through the condenser under the drive of the negative pressure in the clothes treatment cylinder. With this setting, the wind pressure and air volume loss can be reduced, the utilization efficiency of the air volume can be improved, and thus the drying efficiency of the drying device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0025] Figure 1 is a layout schematic diagram of the evaporator, condenser and fan in the drying device in the prior art;

[0026] Figure 2 is an internal structure schematic diagram of the drying device provided by the embodiment of the present utility model.

[0027] Figure 1 In:

[0028] 10. Evaporator; 20. Condenser; 30. Fan;

[0029] Figure 2 In:

[0030] 1. Machine shell; 11. Circulation air duct; 12. Air duct out of the cylinder; 13. Air duct into the cylinder;

[0031] 21. Evaporator; 22. Fan; 23. Condenser; 24. First drainage plate assembly; 241. First drainage air duct; 242. First drainage plate; 25. Second drainage plate assembly; 251. Second drainage air duct; 252. Second drainage plate; 26. Compressor; 27. Driving motor;

[0032] 3. Drainage system. Detailed implementation manners

[0033] The present utility model 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 utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can 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 utility model can be understood according to specific situations.

[0035] In the present utility model, 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 situation where the first and second features are not in direct contact but in contact through other 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 simply 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 simply means that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships 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 cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0037] See Figure 2, this embodiment provides a drying device that can dry clothes, reduce the loss of wind pressure and air volume, improve the utilization efficiency of air volume, and thus improve the drying efficiency of the drying device.

[0038] Specifically, in this embodiment, the drying device includes a housing 1, a clothes treatment cylinder, and a circulating air heating device.

[0039] Among them, a circulating air duct 11 is arranged inside the housing 1.

[0040] The clothes treatment cylinder is rotatably arranged inside the housing 1. The clothes treatment cylinder includes an air inlet and an air outlet that are respectively communicated with both ends of the circulating air duct. The inlet of the circulating air duct 11 is communicated with the air outlet, and the outlet of the circulating air duct 11 is communicated with the air inlet.

[0041] The circulating air heating device includes an evaporator 21, a blower 22, and a condenser 23 that are sequentially arranged along the direction of the drying air flow in the circulating air duct 11. The circulating air heating device can heat the drying gas in the circulating air duct 11.

[0042] When the drying device provided in this embodiment is working, the clothes to be dried are placed in the clothes treatment cylinder. The blower 22 of the circulating air heating device can realize the circulation of the drying gas in the circulating air duct 11; the evaporator 21 and the condenser 23 of the circulating air heating device work together to dehumidify and heat the drying gas in the circulating air duct 11. The dehumidified and heated drying gas enters the clothes treatment cylinder through the air inlet of the clothes treatment cylinder to complete the drying of the clothes; the low-temperature and high-humidity gas flowing out of the clothes treatment cylinder enters the heating circulating air duct 11 through the air outlet of the clothes treatment cylinder. The evaporator 21 dehumidifies the low-temperature and high-humidity gas to form low-temperature and low-humidity gas, and the low-temperature and low-humidity gas forms high-temperature and low-humidity drying gas after passing through the condenser 23.

[0043] Since the blower 22 is arranged between the evaporator 21 and the condenser 23, under the suction of the blower 22, a negative pressure area will be formed inside the clothes treatment cylinder. The gas flowing from the air outlet of the clothes treatment cylinder into the circulating air duct 11 only needs to overcome the resistance of the evaporator 21 and then quickly pass through the condenser 23 under the negative pressure inside the clothes treatment cylinder. With such a setting, the loss of wind pressure and air volume can be reduced, the utilization efficiency of air volume can be improved, and thus the drying efficiency of the drying device can be improved.

[0044] Preferably, in this embodiment, the evaporator 21 is located at the inlet end of the circulating air duct 11, and the blower 22 is arranged adjacent to the evaporator 21. The condenser 23 is located at the outlet end of the circulating air duct 11. With such a setting, a stable negative pressure area will be formed inside the clothes treatment cylinder under the suction of the blower 22.

[0045] Further, the circulating air heating device further includes a driving motor 27 for driving the blower 22 to operate. Specifically, the blower 22 includes a fan volute and a fan. The fan is disposed within the fan volute, and the driving motor 27 drives the fan to rotate.

[0046] Further, the circulating air heating device further includes a compressor 26. Both the evaporator 21 and the condenser 23 are connected to the compressor 26.

[0047] Both the evaporator 21 and the condenser 23 are connected to the compressor 26 to form a heat pump unit, so as to be able to dehumidify and heat the air flow in the circulating air duct 11.

[0048] The clothes drying device further includes a drainage system 3 disposed in the housing 1, and the drainage system 3 is connected to the evaporator 21.

[0049] Specifically, the drainage system includes a drainage pipe. One end of the drainage pipe is connected to the evaporator 21, and the water generated after the evaporator 21 dehumidifies the low-temperature and high-humidity gas entering the circulating air duct 11 is discharged through the drainage pipe.

[0050] Further, the circulating air heating device further includes a first flow guiding plate assembly 24 located in the circulating air duct 11 and disposed between the evaporator 21 and the blower 22. The first flow guiding plate assembly 24 includes a plurality of first flow guiding air ducts 241. Along the flow direction of the drying gas in the circulating air duct 11, the flow area of the first flow guiding air duct 241 gradually decreases.

[0051] When the drying gas flows along the first flow guiding air duct 241, the flow rate gradually increases, which can reduce the wind pressure loss.

[0052] Specifically, in this embodiment, the first flow guiding plate assembly 24 includes a plurality of first flow guiding plates 242 arranged in sequence. A first flow guiding air duct 241 is formed between two adjacent first flow guiding plates 242.

[0053] Further, in this embodiment, the circulating air heating device further includes a second flow guiding plate assembly 25 located in the circulating air duct 11 and disposed between the blower 22 and the condenser 23. The second flow guiding plate assembly 25 includes a plurality of second flow guiding air ducts 251. Along the flow direction of the drying gas in the circulating air duct 11, the flow area of the second flow guiding air duct 251 gradually increases.

[0054] The setting of the second air guiding duct 251 can, on the one hand, guide the air flow and direct the air flow to flow from the blower 22 to the condenser 23. On the other hand, along the flow direction of the drying gas in the circulation duct 11, the flow area of the second air guiding duct 251 gradually increases. With such a setting, the flow velocity of the gas flowing out of the second air guiding duct 251 is reduced, so that it slowly passes through the condenser 23, ensuring that the gas passing through the condenser 23 can fully exchange heat with the condenser 23.

[0055] Specifically, in this embodiment, the second air guiding plate assembly 25 includes a plurality of second air guiding plates 252 arranged in sequence, and a second air guiding duct 251 is formed between two adjacent second air guiding plates 252.

[0056] Optionally, an out-of-cylinder air duct 12 is provided in the housing 1, and the out-of-cylinder air duct 12 communicates with the air outlet of the laundry treatment cylinder and the inlet of the circulation duct 11; and / or

[0057] An in-cylinder air duct 13 is provided in the housing 1, and the in-cylinder air duct 13 communicates with the air inlet of the laundry treatment cylinder and the outlet of the circulation duct 11.

[0058] Specifically, in this embodiment, an out-of-cylinder air duct 12 is provided in the housing 1, and the out-of-cylinder air duct 12 communicates with the air outlet of the laundry treatment cylinder and the inlet of the circulation duct 11; an in-cylinder air duct 13 is provided in the housing 1, and the in-cylinder air duct 13 communicates with the air inlet of the laundry treatment cylinder and the outlet of the circulation duct 11.

[0059] The setting of the out-of-cylinder air duct 12 can ensure that the gas that has completed drying the clothes in the laundry treatment cylinder fully enters the circulation duct 11; the setting of the in-cylinder air duct 13 can ensure that the drying gas flowing out of the circulation duct 11 fully enters the laundry treatment cylinder.

[0060] Further, an out-of-cylinder air duct 12 is provided in the housing 1, and a first filter element is provided in the out-of-cylinder air duct 12.

[0061] The setting of the first filter element can prevent the air flow entering the circulation duct 11 from carrying impurities such as lint and affecting the normal operation of the circulation air heating device.

[0062] An in-cylinder air duct 13 is provided in the housing 1, and a second filter element is provided in the in-cylinder air duct 13. The setting of the second filter element can prevent the air flow in the circulation duct 11 from carrying certain impurities (such as impurities falling off due to rust on the surface of the evaporator 21 and / or the condenser 23) into the laundry treatment cylinder.

[0063] Optionally, the first filter element and the second filter element can be filter meshes; of course, in other embodiments, the first filter element and the second filter element can also be filter sponges.

[0064] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. 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 utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Drying equipment, characterized in that: include: A casing (1), wherein a circulating air duct (11) is arranged inside the casing (1); a clothes processing drum rotatably arranged in the housing (1), the clothes processing drum comprising an air inlet and an air outlet respectively connected to two ends of the circulating air duct, the inlet of the circulating air duct (11) being connected to the air outlet, and the outlet of the circulating air duct (11) being connected to the air inlet; The circulating air heating device comprises an evaporator (21), a fan (22) and a condenser (23) which are arranged in sequence along the direction of the drying air flow in the circulating air duct (11), and the circulating air heating device can heat the drying gas in the circulating air duct (11).

2. The clothes drying device according to claim 1, characterized in that: The circulating air heating device further comprises a first guide plate assembly (24), the first guide plate assembly (24) being located in the circulating air duct (11) and being arranged between the evaporator (21) and the fan (22), the first guide plate assembly (24) comprising a plurality of first guide air ducts (241), and the flow area of ​​the first guide air ducts (241) gradually decreasing along the flow direction of the drying gas in the circulating air duct (11).

3. The clothes drying device according to claim 2, characterized in that: The first flow guide plate assembly (24) comprises a plurality of first flow guide plates (242) arranged in sequence, and a first flow guide air duct (241) is formed between two adjacent first flow guide plates (242).

4. The clothes drying device according to claim 2, characterized in that: The circulating air heating device also includes a second guide plate assembly (25), which is located in the circulating air duct (11) and is arranged between the fan (22) and the condenser (23). The second guide plate assembly (25) includes a plurality of second guide air ducts (251), and the flow area of ​​the second guide air ducts (251) gradually increases along the flow direction of the drying gas in the circulating air duct (11).

5. The clothes drying device according to claim 4, characterized in that: The second flow guide plate assembly (25) comprises a plurality of second flow guide plates (252) arranged in sequence, and a second flow guide air duct (251) is formed between two adjacent second flow guide plates (252).

6. The clothes drying device according to claim 1, characterized in that: The circulating air heating device further comprises a compressor (26), and the evaporator (21) and the condenser (23) are both in communication with the compressor (26).

7. The clothes drying device according to claim 1, characterized in that: The housing (1) is provided with an outlet air duct (12), wherein the outlet air duct (12) is connected to the air outlet of the laundry processing drum and the inlet of the circulation air duct (11); and / or The housing (1) is provided with a drum inlet air duct (13), and the drum inlet air duct (13) is connected to the air inlet of the laundry processing drum and the outlet of the circulation air duct (11).

8. The clothes drying device according to claim 7, characterized in that: The casing (1) is provided with the cylinder outlet air duct (12), and the cylinder outlet air duct (12) is provided with a first filter element.

9. The clothes drying device according to claim 7, characterized in that: The housing (1) is provided with the cylinder inlet air duct (13), and the cylinder inlet air duct (13) is provided with a second filter element.

10. The clothes drying device according to any one of claims 1 to 9, characterized in that: The clothes drying device further comprises a drainage system (3), wherein the drainage system (3) is arranged on the casing (1), and the drainage system (3) is connected to the evaporator (21).

Images