Air supply structure and dryer

Abstract

The utility model discloses an air supply structure and a drying machine. The air supply structure comprises a support, a roller, a sleeve, an air duct piece, a fan assembly, a heating assembly and an air conveying pipe. The roller is rotationally installed on the support, an air inlet is formed in the side face of the roller, and a plurality of air inlet holes are formed in the outer wall face of the roller. The sleeve is fixedly installed on the support and covers the outer wall face of the roller, and an air storage cavity is formed between the inner wall face of the sleeve and the outer wall face of the roller; an air supply channel is formed in the air duct piece, and one end of the air supply channel communicates with the air inlet; a fan cavity is formed in the fan assembly, and one end of the fan cavity communicates with the other end of the air supply channel; the heating group is arranged at the other end of the fan cavity; and one end of the air conveying pipe communicates with the air supply channel, and the other end communicates with the air storage cavity. On the basis of air intake of the air inlet, air intake is assisted through the air inlet holes, so that hot air can be blown to wet clothes more quickly and uniformly, and the drying efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of dryers, and particularly to an air supply structure and a dryer. Background Art

[0002] A dryer is a cleaning household appliance that uses electric heating to instantly evaporate and dry the moisture in the washed clothes. The existing dryers are only provided with one air outlet, with low air supply efficiency, and it takes a certain amount of time to evenly blow hot air onto the wet clothes, resulting in low drying efficiency and resource waste. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide an air supply structure and a dryer, which, on the basis of air intake at the air inlet, can make the hot air blow onto the wet clothes faster and more evenly through the air intake holes, thereby improving the drying efficiency.

[0004] To achieve the above object, this application adopts the following technical solutions:

[0005] On the one hand, an air supply structure is provided, including: a bracket;

[0006] A drum, which is rotatably installed on the bracket, has an air inlet on its side surface, and a plurality of air intake holes on its outer wall surface;

[0007] A sleeve, which is fixedly installed on the bracket and covers the outer wall surface of the drum, and a wind storage cavity is formed between the inner wall surface of the sleeve and the outer wall surface of the drum;

[0008] An air duct member, inside which an air supply channel is formed, and one end of the air supply channel is communicated with the air inlet;

[0009] A fan assembly, inside which a fan cavity is formed, and one end of the fan cavity is communicated with the other end of the air supply channel;

[0010] A heating assembly, which is arranged at the other end of the fan cavity and is used for heating the air entering the fan cavity;

[0011] An air duct, one end of which is communicated with the air supply channel, and the other end is communicated with the wind storage cavity.

[0012] Further, it further includes a filter screen, which is arranged at the connection position between the fan cavity and the air supply channel.

[0013] Further, a door panel is hinged to the other side surface of the drum, an air outlet opposite to the air inlet is opened on the door panel, and a return air duct is connected between the air outlet and the fan cavity.

[0014] Further, the heating component includes an electrothermal film, and the electrothermal film is disposed at the connection position between the blower cavity and the return air duct.

[0015] Further, a temperature sensor is disposed inside the drum, and the temperature sensor is electrically connected to the blower component and the heating component respectively.

[0016] Further, a humidity sensor is also disposed inside the drum, and the humidity sensor is electrically connected to the blower component and the heating component respectively.

[0017] Further, the air inlet holes are arranged in an array on the outer wall surface of the drum.

[0018] Further, the air intake volume of the air inlet is more than 16 times that of the air inlet holes.

[0019] Further, a clothing cavity is formed inside the drum, and the intake volume of the air inlet accounts for 2%-4% of the volume of the clothing cavity.

[0020] On the other hand, a dryer is also provided, which includes the air supply structure as described in any one of the above and a driving component, and the power end of the driving component is connected to the center of the side surface of the drum.

[0021] The beneficial effects of this application are as follows: After starting the fan assembly, external air is inhaled into the fan cavity. After the air enters the fan cavity, it is heated by the heating assembly and becomes hot air. The heating assembly adjusts the temperature of the air according to the preset temperature. Driven by the fan assembly, the hot air flows through the air supply channel. The design of the air supply channel ensures that the hot air can be efficiently transmitted to the next link. The other end of the air supply channel is connected to the air delivery pipe, and the hot air enters the air storage cavity formed between the sleeve and the drum through the air delivery pipe. The air storage cavity serves as a buffer area, enabling the hot air to be evenly distributed. The hot air in the air storage cavity enters the drum through a number of air inlet holes on the outer wall of the drum. At the same time, since there are air inlets on the side of the drum, the hot air can also directly enter the interior of the drum through these air inlets. The hot air exchanges heat with the clothes in the drum, taking away the moisture on the clothes and achieving uniform and rapid drying of the clothes. The rotation of the drum helps the clothes to be heated more evenly during the drying process. This application heats the air through the heating assembly and uses the fan assembly to efficiently transport the hot air into the drum, realizing rapid drying of the clothes. The design of the air inlets on the side of the drum and the number of air inlet holes on the outer wall enables the hot air to enter the interior of the drum evenly, avoiding problems such as local overheating or uneven drying of the clothes. In addition, the design of the air storage cavity enables the hot air to be temporarily stored in this space and then enter the drum in a more uniform and rapid manner, reducing waste of heat energy and improving energy utilization efficiency. The entire air supply structure adopts a modular design, with compact cooperation between components, reducing the occupied space of the equipment, facilitating installation and use. Moreover, this air supply structure is not only applicable to clothes drying equipment but also can be applied to other occasions that require air supply and heating, such as industrial drying, agricultural drying, etc. Description of the Drawings

[0022] The following further elaborates on this application with reference to the drawings and embodiments.

[0023] Figure 1 is a three-dimensional view of the air supply structure according to the embodiment of this application Figure 1 ;

[0024] Figure 2 is a side view of the air supply structure according to the embodiment of this application;

[0025] Figure 3 is a three-dimensional view of the air supply structure according to the embodiment of this application Figure 2 .

[0026] In the figure: 1, bracket; 2, drum; 201, air inlet; 202, air inlet hole; 3, sleeve; 4, air storage cavity; 5, air duct member; 6, air delivery pipe. Detailed Embodiment

[0027] To make the technical problems solved by this application, the technical solutions adopted, and the achieved technical effects clearer, the following further describes in detail the technical solutions of the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of this application.

[0028] In the description of this application, unless otherwise clearly defined and limited, the terms "connected", "connected", 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 components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0029] In this application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0030] As Figures 1 - 3 shown, this embodiment provides an air supply structure, including: a bracket 1, a drum 2, a sleeve 3, an air duct member 5, a fan assembly, a heating assembly, and an air duct 6; the drum 2 is rotatably installed on the bracket 1, an air inlet 201 is provided on the side surface of the drum 2, and a plurality of air inlet holes 202 are provided on the outer wall surface; the sleeve 3 is fixedly installed on the bracket 1 and covers the outer wall surface of the drum 2, and an air storage cavity 4 is formed between the inner wall surface of the sleeve 3 and the outer wall surface of the drum 2; an air supply channel is formed inside the air duct member 5, and one end of the air supply channel is communicated with the air inlet 201; a fan cavity is formed inside the fan assembly, and one end of the fan cavity is communicated with the other end of the air supply channel; the heating group is arranged at the other end of the fan cavity for heating the air entering the fan cavity; one end of the air duct 6 is communicated with the air supply channel, and the other end is communicated with the air storage cavity 4.

[0031] Based on the above solution, after the fan assembly is started, external air is sucked into the fan chamber. After the air enters the fan chamber, it is heated by the heating assembly and becomes hot air. The heating assembly adjusts the temperature of the air according to a preset temperature. The hot air flows through the air supply channel driven by the fan assembly. The design of the air supply channel ensures that the hot air can be efficiently transmitted to the next link. The other end of the air supply channel is connected to the air delivery pipe 6. The hot air enters the air storage chamber 4 formed between the sleeve 3 and the drum 2 through the air delivery pipe 6. The air storage chamber 4 serves as a buffer area, enabling the hot air to be evenly distributed. The hot air in the air storage chamber 4 enters the drum 2 through a number of air inlet holes 202 on the outer wall surface of the drum 2. At the same time, since the side of the drum 2 is provided with air inlets 201, the hot air can also directly enter the interior of the drum 2 through these air inlets 201. The hot air exchanges heat with the clothes in the drum 2, taking away the moisture on the clothes and achieving uniform and rapid drying of the clothes. The rotation of the drum 2 helps the clothes to be heated more evenly during the drying process. In this application, the air is heated by the heating assembly, and the hot air is efficiently transported into the drum 2 by the fan assembly to achieve rapid drying of the clothes. The design of the air inlets 201 on the side of the drum 2 and a number of air inlet holes 202 on the outer wall surface enables the hot air to enter the interior of the drum 2 evenly, avoiding problems such as local overheating or uneven drying of the clothes. In addition, the design of the air storage chamber 4 enables the hot air to be temporarily stored in this space and then enter the drum 2 in a more uniform and rapid manner, reducing waste of thermal energy and improving energy utilization efficiency. The entire air supply structure adopts a modular design, with compact cooperation between components, reducing the occupied space of the equipment, facilitating installation and use. Moreover, this air supply structure is not only applicable to clothes drying equipment but can also be applied to other occasions that require air supply and heating, such as industrial drying, agricultural drying, etc.

[0032] Preferably, it further includes a filter screen which is arranged at the connection position between the blower cavity and the air supply channel. Driven by the blower assembly, external air is first sucked into the blower cavity. At this time, the air will pass through the filter screen arranged at the connection position between the blower cavity and the air supply channel. The main function of the filter screen is to block and filter out impurities such as dust, hair, and fibers in the air, ensuring that the air entering the air supply channel is clean. After being filtered by the filter screen, the clean air enters the blower cavity, and then becomes hot air after being heated by the heating assembly. Then, driven by the blower assembly, the hot air flows through the air supply channel and finally enters the air storage cavity 4 through the air delivery pipe 6, and then enters the clothing cavity from the air inlet 201 of the drum 2, realizing uniform and rapid drying of the clothes. The filter screen can effectively block and filter out impurities in the air, ensuring that the air entering the drum 2 is clean, which can avoid contaminating the clothes with impurities, and at the same time can protect the blower assembly and the heating assembly, extending their service life. The clean air can better exchange heat with the clothes, taking away the moisture on the clothes and improving the drying effect. At the same time, since the influence of impurities on the clothes is avoided, the dried clothes are cleaner and tidier. In addition, through the filtration of the filter screen, the number of impurities entering the blower cavity can be reduced, reducing the load on the blower assembly and the heating assembly, thereby reducing energy consumption. Moreover, the clean air can also reduce the pollutant emissions generated during the drying process, which is beneficial to environmental protection.

[0033] It is worth mentioning that the filter screen is designed to be detachable, which is convenient for users to clean and replace regularly. This can maintain the filtering effect of the filter screen and ensure the normal operation of the drying equipment. At the same time, it also reduces the equipment failures and maintenance costs caused by the blockage of the filter screen.

[0034] Furthermore, a door panel is hinged to the other side of the drum 2, and an air outlet opposite to the air inlet 201 is provided on the door panel. A return air pipe is connected between the air outlet and the blower cavity. During the drying process, as the drum 2 rotates, the moisture and other gases in the clothes are carried out by the hot air and discharged through the air outlet of the drum 2. These air with moisture is then re-sucked into the blower cavity through the return air pipe. In the blower cavity, these air with moisture may be reheated or mixed with fresh air, and then enter the drum 2 again through the air supply channel and the air delivery pipe 6, forming a circulating drying system. Through the setting of the return air pipe, the air with moisture is re-sucked into the blower cavity and may be reheated or mixed with fresh air again, and then enters the drum 2 again for drying. This circulating drying system can ensure that the hot air in the drum 2 always maintains a certain temperature and humidity, thereby improving the drying efficiency, and can effectively utilize the waste heat of the return air to preheat the newly inhaled fresh cold air, rationally and effectively utilizing resources and avoiding waste of resources.

[0035] Furthermore, the heating component includes an electrothermal film which is disposed at the connection position between the blower chamber and the return air duct. When the blower assembly is started, after the external air is filtered by the filter screen, it is sucked into the blower chamber. At this time, the electrothermal film starts to work, heating the passing air to make it hot air. The electrothermal film directly converts electrical energy into heat energy, without any form of pollution, does not consume oxygen, and does not produce carbon dioxide, waste gas, waste water or waste emissions. It is a very environmentally friendly heating method. Compared with other heating methods, the concept advocated by the electrothermal film heating system is to save even more in saving, which can effectively reduce energy consumption. Moreover, the electrothermal conversion rate of the electrothermal film system is close to 100%, saving 10 - 15% of energy compared with other heating systems.

[0036] Optionally, a temperature sensor and a humidity sensor are provided inside the drum 2. The temperature sensor is electrically connected to the blower assembly and the heating component respectively, and the humidity sensor is electrically connected to the blower assembly and the heating component respectively. The temperature sensor can monitor the temperature inside the drum 2 in real time and feedback this information to the control system. According to the set temperature range, the control system can automatically adjust the power of the heating component to ensure that the temperature inside the drum 2 is maintained within an ideal drying range. At the same time, the temperature sensor can also be linked with the blower assembly. When the temperature inside the drum 2 is too high, the control system can increase the rotational speed of the blower to improve the air circulation volume, thereby quickly reducing the temperature inside the drum 2 and preventing the clothes from being damaged due to overheating. Similarly, the humidity sensor can monitor the humidity level inside the drum 2 in real time and transmit this information to the control system. By comparing with the set humidity target value, the control system can adjust the working states of the heating component and the blower assembly to achieve precise humidity control. When the humidity inside the drum 2 is too high, the control system can increase the power of the heating component to raise the air temperature, thereby accelerating the drying process of the clothes. At the same time, the blower assembly can also increase the rotational speed to increase the air circulation volume and help the moisture to be discharged from the drum 2 more quickly. Through intelligent temperature and humidity control, the system can avoid unnecessary energy waste. When the temperature and humidity inside the drum 2 reach the set values, the system can automatically reduce the power of the heating component or turn off the blower assembly to save energy. In addition, precise control can also reduce the drying time and improve the drying efficiency, thereby further reducing energy consumption.

[0037] At the same time, intelligent temperature and humidity control can ensure that the clothes are heated and ventilated evenly and moderately during the drying process, avoiding local overheating or overwetting of the clothes. This helps to improve the drying quality and makes the clothes softer, fluffier and wrinkle-free.

[0038] Generally speaking, the air inlet holes 202 are arranged in an array on the outer wall surface of the drum 2. The array arrangement of the air inlet holes 202 can ensure that uniform air intake amounts can be obtained in various regions inside the drum 2. During the drying process, the clothes keep tumbling inside the drum 2. If the air intake is uneven, it may cause uneven drying of the clothes, resulting in local over-drying or over-wetting. However, the array arrangement of the air inlet holes 202 can well solve this problem, enabling the clothes to obtain a more uniform drying effect. Uniform air intake can accelerate the air circulation speed inside the drum 2, enabling the moisture on the clothes to be carried away faster. This can not only shorten the drying time, improve the drying efficiency, but also reduce energy consumption. In addition, since the air inlet holes 202 are arranged in an array, the area of each air inlet hole 202 is relatively small, which can reduce the flow rate and noise of the air passing through. This design can also reduce the vibration and noise generated due to uneven air intake, improving the user experience.

[0039] Furthermore, the air intake amount of the air inlet 201 is more than 16 times that of the air inlet holes 202. The relatively large air inlet 201 can ensure that more hot air quickly enters the inside of the drum 2, thereby accelerating the drying process of the clothes. Compared with the air inlet holes 202, the air inlet 201 can provide a higher air flow rate. As the main air intake channel, the air inlet 201, assisted by multiple air inlet holes 202, can blow the hot air evenly into the drum 2 at the fastest speed, effectively improving the drying efficiency and ensuring a better drying effect for the clothes.

[0040] Meanwhile, a clothes cavity is formed inside the drum 2, and the intake volume of the air inlet 201 accounts for 2%-4% of the volume of the clothes cavity. The intake volume of the air inlet 201 accounting for 2% to 4% of the volume of the clothes cavity means that an appropriate amount of air can enter the clothes cavity and conduct sufficient heat exchange with the clothes, which helps maintain the air circulation inside the drum 2 and prevent the generation of a humid and stuffy environment during the drying process of the clothes. An appropriate intake volume can ensure that the clothes receive sufficient hot air supply, thereby accelerating the evaporation and discharge of moisture, helping to improve the drying efficiency and shorten the drying time. The proper ratio of the intake volume of the air inlet 201 to the volume of the clothes cavity can ensure that all parts of the clothes can obtain a uniform heat distribution when tumbling inside the drum 2, and can avoid the situation of local over-drying or over-wetting of the clothes, improving the drying quality.

[0041] On the other hand, a dryer is further provided, including the air supply structure described in any one of the above and a driving component, and the power end of the driving component is connected to the center of the side surface of the drum 2.

[0042] In the description of this document, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying operations, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] In the description of this specification, the description referring to terms such as "one embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0044] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0045] The technical principles of this application have been described above in combination with specific embodiments. These descriptions are only for explaining the principles of this application and should not be construed as a limitation to the protection scope of this application in any way. Based on the explanations herein, those skilled in the art can readily conceive of other specific implementation manners of this application without creative efforts, and these manners will fall within the protection scope of this application.

Claims

1. An air supply structure, characterized in that: include: Bracket (1); A drum (2) is rotatably mounted on the bracket (1); an air inlet (201) is provided on the side of the drum (2), and a plurality of air inlet holes (202) are provided on the outer wall surface; A sleeve (3) is fixedly mounted on the bracket (1) and covers the outer wall surface of the drum (2); an air storage cavity (4) is formed between the inner wall surface of the sleeve (3) and the outer wall surface of the drum (2); An air duct member (5) having an air supply channel formed therein, one end of the air supply channel being in communication with the air inlet (201); A fan assembly, wherein a fan cavity is formed inside the fan assembly, and one end of the fan cavity is connected to the other end of the air supply channel; A heating component, disposed at the other end of the fan cavity, for heating the air entering the fan cavity; An air delivery pipe (6) has one end connected to the air supply channel and the other end connected to the air storage chamber (4).

2. The air supply structure according to claim 1, characterized in that: It also includes a filter screen, which is arranged at the connecting position between the fan chamber and the air supply channel.

3. The air supply structure according to claim 1, characterized in that: A door panel is hingedly connected to the other side of the drum (2), an air outlet opposite to the air inlet (201) is provided on the door panel, and an air return duct is connected between the air outlet and the fan chamber.

4. The air supply structure according to claim 3, characterized in that: The heating component includes an electric heating film, and the electric heating film is arranged at the connection position between the fan cavity and the return air duct.

5. The air supply structure according to any one of claims 1 to 4, characterized in that: A temperature sensor is arranged in the drum (2), and the temperature sensor is electrically connected to the fan assembly and the heating assembly respectively.

6. The air supply structure according to any one of claims 1 to 4, characterized in that: A humidity sensor is also provided in the drum (2), and the humidity sensor is electrically connected to the fan assembly and the heating assembly respectively.

7. The air supply structure according to any one of claims 1 to 4, characterized in that: The air inlet holes (202) are distributed in an array on the outer wall surface of the drum (2).

8. The air supply structure according to any one of claims 1 to 4, characterized in that: The air intake volume of the air inlet (201) is more than 16 times the air intake volume of the air inlet hole (202).

9. The air supply structure according to any one of claims 1 to 4, characterized in that: A clothing cavity is formed inside the drum (2), and the air intake volume of the air inlet (201) accounts for 2%-4% of the volume of the clothing cavity.

10. A drying machine, characterized in that: It comprises an air supply structure as described in any one of claims 1 to 9, and a driving component, wherein the power end of the driving component is connected to the side center of the drum (2).

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