Clothes dryer

Abstract

This application provides a clothes dryer, including: an inner drum for holding clothes and having an opening; a heat pump assembly disposed below the inner drum for exchanging heat with the clothes in the inner drum to dry them; a first air duct, one end of which is connected to the heat pump assembly and the other end of which is connected to the opening of the inner drum, a portion of which is located above the inner drum and the other portion of which is located on the side of the inner drum opposite to the opening; and a second air duct, one end of which is connected to the heat pump assembly and the other end of which is connected to the inner drum, also located on the side of the inner drum opposite to the opening. By using the low-temperature heat source of the heat pump assembly to dry the clothes, low-temperature drying can be achieved, reducing damage to the clothing material. Furthermore, the heat pump assembly is disposed below the inner drum, which reduces space constraints compared to the prior art where it is disposed above the inner drum. In addition, the first and second air ducts extend the heat exchange path, achieving efficient heat exchange and improving the drying effect.

Description

Technical Field

[0001] The present application belongs to the field of clothes dryers, and in particular, relates to a clothes dryer. Background Art

[0002] With the improvement of living standards, people have an increasing demand for clothing care. Dryers, washer-dryers or washer-dryers can help users dry clothes quickly, solving the problem of users having difficulty dressing on continuous rainy days.

[0003] Currently, condensation dryers are the main type of dryers. Their high drying temperature makes the clothes after drying prone to shrinkage, deformation, discoloration and other problems, causing great damage to the clothing material. Utility Model Content

[0004] An embodiment of the present application provides a clothes dryer that can achieve low-temperature drying of clothes and reduce damage to the material of the clothes.

[0005] The present application provides a clothes dryer, comprising:

[0006] An inner drum, used for carrying clothes, wherein the inner drum has an opening;

[0007] A heat pump assembly is disposed below the inner drum, and is used to perform heat exchange with the clothes in the inner drum to dry the clothes;

[0008] A first air duct tube, one end of which is connected to the heat pump assembly, and the other end of which is connected to the opening of the inner tube, a portion of the first air duct tube is located above the inner tube, and another portion of the first air duct tube is located on a side of the inner tube away from the opening;

[0009] The second air duct pipe has one end connected to the heat pump assembly and the other end connected to the inner cylinder. The second air duct pipe is located on a side of the inner cylinder away from the opening.

[0010] Optionally, the clothes dryer further comprises:

[0011] The fan is arranged in the first air duct and located above the inner cylinder, and is used to guide the air in the inner cylinder into the heat pump assembly through the first air duct.

[0012] Optionally, the clothes dryer further comprises:

[0013] The filter assembly is arranged at the opening of the first air duct tube close to the inner cylinder to filter the air in the inner cylinder when it enters the first air duct tube.

[0014] Optionally, the clothes dryer further comprises a door seal, wherein the door seal is arranged at the opening of the inner drum;

[0015] The filter assembly comprises:

[0016] A connecting pipe, one end of which is connected to the first air duct pipe, and the other end of which is connected to the door seal;

[0017] The filter screen is detachably connected to the connecting pipe.

[0018] Optionally, the filter screen is arranged to be inclined toward the inner cylinder.

[0019] Optionally, the filter assembly further includes a collection box, and the collection box is disposed below the filter screen.

[0020] Optionally, the filter screen is magnetically connected to the connecting pipe.

[0021] Optionally, a portion of the first air duct pipe is opposite to the second air duct pipe and is arranged around the axis of the inner tube.

[0022] Optionally, the heat pump assembly comprises:

[0023] A bottom shell having a sealed space, wherein the bottom shell is arranged below the inner cylinder;

[0024] A condenser is arranged in the sealed space;

[0025] The evaporator is arranged in the sealed space and spaced apart from the condenser. The evaporator is connected to the condenser through a pipeline.

[0026] Optionally, the heat pump assembly further comprises:

[0027] The compressor is arranged on one side of the bottom shell and is connected with the condenser through a pipeline.

[0028] In the clothes dryer of the embodiment of the present application, by adopting the low-temperature heat source of the heat pump assembly to dry the clothes, low-temperature drying of the clothes can be achieved, and damage to the clothing material can be reduced. The heat pump assembly is arranged below the inner drum, which reduces the space limitation compared to the solution of setting it above the inner drum in the prior art. In addition, the first air duct pipe and the second air duct pipe extend the heat exchange path, which can achieve efficient heat exchange and improve the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0030] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0031] Figure 1 This is a schematic structural diagram of the dryer from a first angle provided in an embodiment of the present application.

[0032] Figure 2 This is a schematic structural diagram of the dryer from a second angle provided in an embodiment of the present application.

[0033] Figure 3 This is a schematic structural diagram of the dryer provided in an embodiment of the present application from a third angle.

[0034] Figure 4 for Figure 3 The cross-sectional structural schematic diagram of the dryer along AA is shown.

[0035] Figure 5 This is a schematic diagram of the structure of part of the dryer provided in an embodiment of the present application.

[0036] Figure 6 A schematic diagram of the structure of a heat pump assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] At present, condensing dryers are the main type of dryers. The working principle of condensing dryers is: the air is heated to hot air after passing through the heater, and the hot air passes through the clothes to become wet and cold air. The wet and cold air passes through the condensation system to precipitate moisture and become dry and cold air. The dry and cold air passes through the heater again to become hot air and passes through the clothes. This cycle continues to remove moisture from the clothes. The higher drying temperature of the condensing dryer makes the clothes easy to shrink, deform, discolor, etc. after drying, which causes great damage to the material of the clothes.

[0039] In order to reduce the occurrence of the above problems, the embodiment of the present application improves the dryer.

[0040] See also Figure 1 and Figure 2 As shown, Figure 1 This is a schematic structural diagram of a clothes dryer provided in an embodiment of the present application from a first angle. Figure 2A schematic diagram of the structure of the clothes dryer provided in the embodiment of the present application from a second angle. The embodiment of the present application provides a clothes dryer 100, which is a machine for drying clothes. The clothes dryer 100 may only have a drying function, or the clothes dryer 100 may be a washer-dryer or a washer-dryer with washing and drying functions, which is not specifically limited in the embodiment of the present application.

[0041] Exemplarily, the clothes dryer 100 includes an inner drum 110 , a heat pump assembly 120 , a first air duct 130 , and a second air duct 140 .

[0042] The inner drum 110 is used to carry clothes. The inner drum 110 is in the form of a drum and has an opening 111 for putting clothes in or taking clothes out. Of course, the clothes dryer 100 also includes an outer drum 150, which is sleeved outside the inner drum 110 and the two are coaxially designed to facilitate the installation of the inner drum 110 on the outer drum 150. The outer drum 150 is used to hold washing water. The inner drum 110 can rotate relative to the outer drum 150 to drive the clothes to rotate, and the clothes can be cleaned in combination with the laundry detergent.

[0043] The heat pump assembly 120 is the main device for drying clothes. The heat pump assembly 120 is arranged below the inner drum 110. The heat pump assembly 120 is used to perform heat exchange with the clothes in the inner drum 110 to dry the clothes. It should be noted that there are some clothes dryers including heat pump assemblies on the market. The layout usually adopts a method in which the heat exchanger is placed on the upper part of the whole machine, and the air is discharged from the rear cover of the drum, and enters the drum from the drum mouth after passing through the heat exchanger. Due to space limitations, the volume of the condenser and evaporator in the heat pump assembly is limited, and the drying effect is unsatisfactory. Therefore, in order to avoid the above situation, the embodiment of the present application arranges the heat pump assembly 120 below the inner drum 110, thereby providing sufficient space for the placement of the evaporator and condenser in the heat pump assembly 120, and can lower the center of gravity of the whole clothes dryer 100, which not only improves the drying effect of the clothes dryer 100, but also improves the stability of the operation of the clothes dryer 100.

[0044] One end of the first air duct 130 is connected to the heat pump assembly 120, and the other end is connected to the opening 111 of the inner cylinder 110. A portion of the first air duct 130 is located above the inner cylinder 110, and another portion of the first air duct 130 is located on the side of the inner cylinder 110 away from the opening 111. In other words, the first air duct 130 extends from the heat pump assembly 120 below the inner cylinder 110, along the back of the inner cylinder 110 to the top of the inner cylinder 110, and then bends and extends along the top of the inner cylinder 110 to the front opening 111 of the inner cylinder 110.

[0045] One end of the second air duct 140 is in communication with the heat pump assembly 120, and the other end is in communication with the inner drum 110, and the second air duct 140 is located on the side of the inner drum 110 away from the outlet 111. That is, the second air duct 140 is only arranged at the back of the inner drum 110, and the length of the second air duct 140 is shorter than that of the first air duct 130, so as to cooperate with the first air duct 130 to form a circulation path for heat exchange, thereby facilitating drying of the clothes in the inner drum 110.

[0046] Part of the first air duct 130 is opposite to the second air duct 140 and is arranged around the axis of the inner drum 110, so that the pipeline at the back of the inner drum 110 can be balanced, reducing the eccentricity effect on the rotation of the inner drum 110. In addition, the part of the first air duct 130 located above the inner drum 110 can be in the central area of ​​the inner drum 110, which can evenly distribute the gravity of the first air duct 130 and reduce the effect on the whole dryer 100.

[0047] In the clothes dryer 100 provided in the embodiment of the present application, by adopting the low-temperature heat source of the heat pump assembly 120 to dry the clothes, low-temperature drying of the clothes can be achieved, and damage to the clothing material can be reduced. The heat pump assembly 120 is arranged below the inner drum 110, which reduces the space limitation compared to the solution of being arranged above the inner drum in the prior art. In addition, the first air duct pipe 130 and the second air duct pipe 140 extend the heat exchange path, which can achieve efficient heat exchange and improve the drying effect.

[0048] Please combine Figure 1 and Figure 2 Also see Figure 3 and Figure 4 As shown, Figure 3 This is a schematic structural diagram of the clothes dryer provided in the embodiment of the present application from a third angle. Figure 4 for Figure 3 The cross-sectional structure diagram of the clothes dryer along AA is shown. Exemplarily, the clothes dryer 100 further includes a fan 160, which is disposed in the first air duct 130 and is located above the inner drum 110. The fan 160 is used to guide the air in the inner drum 110 into the heat pump assembly 120 through the first air duct 130.

[0049] Exemplarily, the clothes dryer 100 further includes a filter assembly 170 , which is disposed at the first air duct 130 near the opening 111 of the inner drum 110 , so as to filter the air in the inner drum 110 when it enters the first air duct 130 .

[0050] It should be noted that the hot air circulation process of the embodiment of the present application is as follows: the humid air on the clothes in the inner drum 110 enters the first air duct 130 through the filter assembly 170 under the action of the fan 160, and at this time, the fluff or hair in the air can be directly intercepted to prevent it from entering the first air duct 130 and the heat pump assembly 120, thereby reducing the pollution to the heat pump assembly 120. The humid and cold air enters the heat pump assembly 120 through the first air duct 130, and performs heat exchange with the hot air generated by the heat pump assembly 120, so that the hot air is sent into the inner drum 110 through the second air duct 140, and the hot air performs heat exchange with the humid and cold air in the inner drum 110, and the cycle is such that the clothes are dried.

[0051] Exemplarily, the dryer 100 further includes a door seal 180, which is a component for sealing between the inner drum 110 and the door of the dryer 100 to prevent water leakage. The door seal 180 may be annular and is disposed at the opening 111 of the inner drum 110.

[0052] Exemplarily, the filter assembly 170 includes a connecting tube 171 and a filter screen 172. One end of the connecting tube 171 is connected to the first air duct tube 130, and the other end of the connecting tube 171 is connected to the door seal 180. It is understandable that the door seal 180 can carry the connecting tube 171 so that the connecting tube 171 extends to the opening 111 of the inner cylinder 110. The filter screen 172 and the connecting tube 171 are detachably connected to facilitate the disassembly and assembly of the filter screen 172. For example, the filter screen 172 and the connecting tube 171 can be connected by magnetic attraction, such as respectively providing magnetic attraction parts at corresponding positions of the connecting tube 171 and the filter screen 172, and aligning the magnetic attraction parts and magnetically connecting them when installing the filter screen 172.

[0053] The filter screen 172 is tilted toward the inner cylinder 110, which can facilitate the air in the inner cylinder 110 to enter the first air duct 130, and can also increase the filtering area to collect more fluff or hair. The tilt angle can be set as needed and is not specifically limited here.

[0054] Exemplarily, the filter assembly 170 further includes a collection box 173, which is disposed below the filter 172 to collect the fluff or hair debris intercepted by the filter 172 to prevent the fluff or hair debris from contaminating the clothes again. For example, the collection box 173 may have a collection slot 1730, the opening of the collection slot 1730 faces the filter 172 to receive the fluff or hair debris dropped from the filter 172.

[0055] The filter assembly 170 and the wind direction design of the embodiment of the present application can collect fluff or hair debris before performing a heat exchange cycle, which can reduce the impact of hair debris accumulation in the heat pump assembly 120 on the heat pump assembly 120 and improve the drying efficiency and drying effect of the heat pump assembly 120.

[0056] Please combine Figures 1 to 4 Also see Figure 5 and Figure 6 As shown, Figure 5 This is a schematic diagram of a part of the structure of the clothes dryer provided in the embodiment of the present application. Figure 6 A schematic diagram of the structure of a heat pump assembly provided in an embodiment of the present application. Exemplarily, the heat pump assembly 120 includes a bottom shell 121, a condenser 122, an evaporator 123 and a compressor 124. The bottom shell 121 has a sealed space 1210, and the bottom shell 121 is arranged below the inner cylinder 110, and the bottom shell 121 is used to seal the condenser 122 and the evaporator 123. The condenser 122 and the evaporator 123 are arranged in the sealed space 1210, and the condenser 122 and the evaporator 123 are arranged at intervals, and the evaporator 123 is connected to the condenser 122 through a pipeline. The compressor 124 is arranged on one side of the bottom shell 121 and is connected to the evaporator 123 through a pipeline. It should be noted that the hot air generated by the heat pump assembly 120 is generated by the cooperation of the compressor 124, the evaporator 123 and the condenser 122. The refrigerant gas is compressed into a high-temperature and high-pressure gas by the compressor 124. It needs to dissipate a lot of heat to be condensed into liquid by the condenser 122. A lot of heat enters the inner drum 110 to exchange heat with the clothes, that is, hot air dries the clothes. The condenser 122 cools down the gas and liquid mixture at this moment, which is medium temperature and medium pressure. Then, the throttle valve reduces the pressure and cools it down, turning it into a low-temperature and low-pressure gas-liquid mixture. After the evaporator 123 exchanges heat with the outside world, it absorbs a lot of heat and vaporizes, turning it into a low-temperature and low-pressure gas again, and separating the water and discharging it. The low-temperature and low-pressure gas starts from the compressor 124 again, and the cycle continues.

[0057] For the entire dryer 100, the high-temperature and high-humidity air in the inner drum 110 passes through the filter assembly 170 on the door seal 180, passes through the filter mesh 172 in the filter assembly 170 and the connecting pipe 171 to enter the first air duct 130, and is powered by the fan 160 to enter the heat pump assembly 120. In the bottom shell 121 of the heat pump assembly 120, it is first dehumidified and cooled by the evaporator 123, and then enters the condenser 122 for heating, and then enters the inner drum 110 through the second air duct 140, completing a dehumidification and heating process. The entire operating program is cyclically performed in the above process until the humidity of the clothes reaches the program setting value.

[0058] In the clothes dryer 100 provided in the embodiment of the present application, by using the low-temperature heat source of the heat pump assembly 120 to dry the clothes, low-temperature drying of the clothes can be achieved, and damage to the clothes material can be reduced. The heat pump assembly 120 is arranged below the inner drum 110, which reduces the space limitation compared with the solution arranged above the inner drum in the prior art. In addition, the first air duct 130 and the second air duct 140 extend the heat exchange path, which can achieve efficient heat exchange and improve the drying effect. In addition, the hot air circulation in the embodiment of the present application is not conventionally blowing air into the inner drum 110, but extracting the wet and cold air in the inner drum 110, and filtering it with the filter assembly 170 before entering the heat pump assembly 120 for heat exchange, which can reduce the influence of hair on the heat pump assembly 120 and further improve the drying effect. The clothes dryer 100 in the embodiment of the present application uses a lower temperature to dry the clothes, which can reduce the shrinkage, deformation, and discoloration of the clothes, achieve a better care effect, save energy and electricity, do not consume water, have zero emissions, and are truly energy-saving and environmentally friendly. The conveniently disassembled filter assembly 170 used in the dryer 100 can effectively filter the lint during the drying process, which is friendly to people with sensitive skin. At the same time, it reduces or avoids the accumulation of lint in the heat pump assembly 120, and maintains the system drying performance for a long time.

[0059] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0061] The dryer provided in the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A clothes dryer, characterized in that: include: An inner drum, used for carrying clothes, wherein the inner drum has an opening; A heat pump assembly is disposed below the inner drum, and is used to perform heat exchange with the clothes in the inner drum to dry the clothes; A first air duct tube, one end of which is connected to the heat pump assembly, and the other end of which is connected to the opening of the inner tube, a portion of the first air duct tube is located above the inner tube, and another portion of the first air duct tube is located on a side of the inner tube away from the opening; The second air duct pipe has one end connected to the heat pump assembly and the other end connected to the inner cylinder. The second air duct pipe is located on a side of the inner cylinder away from the opening.

2. The clothes dryer according to claim 1, characterized in that: The clothes dryer further comprises: The fan is arranged in the first air duct and located above the inner cylinder, and is used to guide the air in the inner cylinder into the heat pump assembly through the first air duct.

3. The clothes dryer according to claim 2, characterized in that: The clothes dryer also includes: The filter assembly is arranged at the opening of the first air duct tube close to the inner cylinder to filter the air in the inner cylinder when it enters the first air duct tube.

4. The clothes dryer according to claim 3, characterized in that: The clothes dryer further comprises a door seal, wherein the door seal is arranged at the opening of the inner drum; The filter assembly comprises: A connecting pipe, one end of which is connected to the first air duct pipe, and the other end of which is connected to the door seal; The filter screen is detachably connected to the connecting pipe.

5. The clothes dryer according to claim 4, characterized in that: The filter screen is arranged to be inclined toward the inner cylinder.

6. The clothes dryer according to claim 5, characterized in that: The filter assembly also includes a collection box, which is arranged below the filter screen.

7. The clothes dryer according to claim 4, characterized in that: The filter screen is magnetically connected to the connecting pipe.

8. The clothes dryer according to any one of claims 1 to 7, characterized in that: A portion of the first air duct pipe is opposite to the second air duct pipe and is arranged around the axis of the inner cylinder.

9. The clothes dryer according to claim 8, characterized in that: The heat pump assembly comprises: A bottom shell having a sealed space, wherein the bottom shell is arranged below the inner cylinder; A condenser is arranged in the sealed space; The evaporator is arranged in the sealed space and spaced apart from the condenser. The evaporator is connected to the condenser through a pipeline.

10. The clothes dryer according to claim 9, characterized in that: The heat pump assembly further comprises: The compressor is arranged on one side of the bottom shell and is connected with the condenser through a pipeline.

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