Clothes dryer

Abstract

The embodiment of the utility model belongs to the clothes drying technology, and provides a clothes dryer. The clothes dryer comprises a base, a first supporting piece, a second supporting piece, a roller and a motor. The first supporting piece and the second supporting piece are both rotationally arranged on a front supporting piece. The roller is in rolling contact with the first supporting piece and the second supporting piece; the motor drives the roller to rotate through the driving pulley and the belt; a plane rectangular coordinate system is defined in the plane where a roller opening of the roller is located, the center point of the roller opening of the roller is set as an original point O, the first supporting piece is arranged in one of the fourth quadrant and the third quadrant, and the second supporting piece and the driving belt wheel are arranged in the other one of the fourth quadrant and the third quadrant. A first preset included angle is formed between the connecting line of the rotating shaft of the first supporting piece and the rotating shaft of the second supporting piece and the extending direction of the width. The stress difference value of the first supporting piece and the second supporting piece can be small, the situation that a single supporting piece is abraded fast is reduced, and then the problem that the service life is short due to uneven stress is solved.

Description

[0001] This application claims the priority of a Chinese patent application with the application number 202421985772.0 and the application title "Clothes Dryer" filed with the Chinese Patent Office on August 15, 2024, the entire content of which is incorporated herein by reference. Technical Field

[0002] Embodiments of the present application relate to the technology of clothes drying. In particular, it relates to a clothes dryer. Background Art

[0003] Clothes dryers are characterized by rapid drying of clothes. In existing drum-type clothes dryers, the drum is rotatably supported within the housing of the clothes dryer. When the drum-type clothes dryer is in operation, high-temperature and dry air enters the drum, comes into contact with the tumbling and shaking clothes, and then becomes humid and hot air, taking away the moisture in the clothes in the form of water vapor to dry the clothes. However, during the operation of the clothes dryer, some support members wear out relatively quickly, affecting the service life of the clothes dryer. Summary of the Utility Model

[0004] The present application provides a clothes dryer to solve the technical problem that during the operation of the clothes dryer in related technologies, due to the gravity of the drum and the inclined tension of the belt, the force difference between the two support members is relatively large, and one of the support members wears out relatively quickly, affecting the service life of the clothes dryer.

[0005] In some embodiments of the present application, a clothes dryer is provided, including:

[0006] A base,

[0007] A front support member, disposed on the base;

[0008] A first support member and a second support member, rotatably disposed on the front support member;

[0009] A drum, the bottom of the drum is rotatably connected to the main body, and the drum is in rolling contact with the first support member and the second support member;

[0010] An electric motor, disposed on the base, and the electric motor drives the drum to rotate through a driving pulley and a belt;

[0011] An evaporator and a condenser, both located within the base. The evaporator is configured to be able to condense the flowing air when the air enters the base, so that the air precipitates moisture; the condenser is configured to heat the condensed air, and the air heated by the condenser can enter the drum again;

[0012] Looking from the mouth of the drum towards the bottom of the drum, in the plane where the mouth of the drum is located, a plane rectangular coordinate system is defined. The center point of the mouth of the drum is set as the origin O. The x-axis of the plane rectangular coordinate system is the extension direction of the width, and the positive direction of the x-axis is horizontally to the right. The y-axis of the plane rectangular coordinate system is the extension direction of the height, and the positive direction of the y-axis is vertically upward. The x-axis and the y-axis divide the plane where the mouth of the drum is located into the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant.

[0013] Among them, the upper right part enclosed by the positive direction of the x-axis and the positive direction of the y-axis is the first quadrant; the upper left part enclosed by the negative direction of the x-axis and the positive direction of the y-axis is the second quadrant; the lower left part enclosed by the negative direction of the x-axis and the negative direction of the y-axis is the third quadrant; the lower right part enclosed by the positive direction of the x-axis and the negative direction of the y-axis is the fourth quadrant.

[0014] The clothes dryer is configured such that the first support member is disposed in one of the fourth quadrant and the third quadrant, and the second support member and the driving pulley are disposed in the other of the fourth quadrant and the third quadrant.

[0015] In the vertical direction, the height of the second support member is higher than the height of the first support member; in the horizontal direction, the distance between the second support member and the y-axis is greater than the distance between the first support member and the y-axis.

[0016] The connection line between the rotation axis of the first support member and the rotation axis of the second support member forms a first preset angle with the extension direction of the width, wherein the first preset angle is greater than 0°.

[0017] The above technical solution has the following advantages or beneficial effects: Compared with the prior art where the first preset angle is equal to 0°, the setting of the first preset angle makes the force on the first support member relatively increase and the force on the second support member relatively decrease, so that the force difference between the first support member and the second support member is smaller. Since the greater the force on the first support member and the second support member, the faster the wear rate, after the force difference between the first support member and the second support member is reduced, the wear rate gap between the first support member and the second support member is reduced, which can reduce the situation where a single support member wears faster, and further reduce the problem of insufficient life caused by uneven force.

[0018] In some embodiments of the present application, the value range of the first preset angle is 5° to 12°.

[0019] The above technical solution has the following advantages or beneficial effects: when the first preset angle is 5°~12°, the difference in force between the first support member and the second support member is small; because the greater the force on the first support member and the second support member, the faster the wear rate, therefore, when the difference in force between the first support member and the second support member is small, the difference in wear rate between the first support member and the second support member is reduced, which can reduce the situation where a single support member wears out quickly, and further reduce the problem of insufficient life caused by uneven force; in addition, the first support member can be away from the y-axis to make more space for the air outlet of the front support member, thereby reducing the resistance coefficient of the first support member to the internal air duct of the dryer, reducing the impact on the air volume of the air duct, and reducing the impact on the performance of the entire machine.

[0020] In some embodiments of the present application, a line connecting the rotation axis of the first support member and the origin O forms a second preset angle with a line connecting the rotation axis of the second support member and the origin O; the value range of the second preset angle is 85° to 90°.

[0021] The above technical solution has the following advantages or beneficial effects: the distance between the first support member and the y-axis is moderate, the first support member will not occupy too much space of the air outlet of the front support member, reducing the impact on the resistance coefficient of the internal air duct of the dryer, reducing the impact on the performance of the whole machine, and drying faster; the first support member and the second support member are subjected to less force, and the power of the whole machine is smaller, so that the wear rate of the first support member and the second support member is slower, reducing the impact on the service life of the first support member and the second support member.

[0022] In some embodiments of the present application, the angle between the line connecting the origin O and the rotation axis of the driving pulley and the line connecting the negative direction of the y-axis is a fourth preset angle; the value range of the fourth preset angle is 35-40°.

[0023] The above technical solution has the following advantages or beneficial effects: the setting of the fourth preset angle makes the position of the driving pulley relatively close to the right side, which can increase the size of the evaporator and condenser on the left side to improve the drying efficiency; the distance between the rotating axis of the driving pulley and the rotating axis of the drum can be larger, and the belt wrap angle is larger, so the contact area between the belt and the driving pulley is larger, and the belt is not easy to slip.

[0024] In some embodiments of the present application, the angle between the line connecting the origin O and the rotation axis of the driving pulley and the line connecting the negative direction of the y-axis is a fourth preset angle, and the angle between the line connecting the rotation axis of the second support member and the origin O and the line connecting the negative direction of the y-axis is a fifth preset angle, and the fifth preset angle is greater than the fourth preset angle.

[0025] The above technical solution has the following advantages or beneficial effects: When the fifth preset angle is greater than the fourth preset angle, the roller can apply pressure to the first support member and the second support member simultaneously, enabling the first support member and the second support member to support the roller simultaneously. When the roller rotates idly, the roller is not easily pulled off by the belt.

[0026] In some embodiments of the present application, along the vertical direction, the first support member is located above the driving pulley.

[0027] The above technical solution has the following advantages or beneficial effects: The roller applies pressure to the first support member, and the first support member can be used to support the roller. The position of the first support member is relatively high and higher than the positions of the motor and the driving pulley. Since the first support member is located above the driving pulley, the driving pulley is not likely to interfere with the first support member, which facilitates the first support member to support the roller.

[0028] In some embodiments of the present application, along the vertical direction, the second support member is located above the driving pulley.

[0029] The above technical solution has the following advantages or beneficial effects: The roller applies pressure to the second support member, and the second support member can be used to support the roller. The position of the second support member is relatively high and higher than the positions of the motor and the driving pulley. Since the second support member is located above the driving pulley, the driving pulley is not likely to interfere with the second support member, which facilitates the second support member to support the roller.

[0030] In some embodiments of the present application, compared with the bottom of the drum, the first support member and the second support member are closer to the drum opening.

[0031] The above technical solution has the following advantages or beneficial effects: The roller applies pressure to the first support member and the second support member, and the first support member and the second support member support the roller simultaneously. When the first support member and the second support member are closer to the drum opening, it is convenient for the first support member and the second support member to directly support the drum opening of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0033] Figure 1 It is a schematic diagram of the first internal structure of a dryer provided by some embodiments of the present application;

[0034] Figure 2 It is a schematic diagram of the second internal structure of a dryer provided by some embodiments of the present application;

[0035] Figure 3 Schematic diagram of the third internal structure of the dryer provided for some embodiments of the present application;

[0036] Figure 4 Schematic diagram of the fourth internal structure of the dryer provided for some embodiments of the present application;

[0037] Figure 5 Schematic diagram of the structure at the base of the dryer provided for some embodiments of the present application;

[0038] Figure 6 Schematic diagram of the structure at the motor of the dryer provided for some embodiments of the present application;

[0039] Figure 7 Schematic diagram of the main body of the dryer provided for some embodiments of the present application;

[0040] Figure 8 Schematic diagram of the structure at the front support of the dryer provided for some embodiments of the present application;

[0041] Figure 9 Schematic diagram of the front support of the dryer provided for some embodiments of the present application;

[0042] Figure 10 Schematic diagram of the structure of the drum and the support of the dryer provided for some embodiments of the present application;

[0043] Figure 11 Schematic diagram of the force on the drum of the dryer provided for some embodiments of the present application;

[0044] Figure 12 First schematic diagram of the outer shell of the dryer provided for some embodiments of the present application;

[0045] Figure 13 Second schematic diagram of the outer shell of the dryer provided for some embodiments of the present application.

[0046] Reference numerals:

[0047] a1 - First preset angle; a2 - Second preset angle; a3 - Third preset angle; a4 - Fourth preset angle; a5 - Fifth preset angle; a6 - Sixth preset angle;

[0048] Ⅰ - First quadrant; Ⅱ - Second quadrant; Ⅲ - Third quadrant; Ⅳ - Fourth quadrant;

[0049] 100 - Drum; 200 - Main body;

[0050] 300 - Front support; 301 - Air outlet; 302 - Through hole;

[0051] 400 - Base; 501 - Motor; 502 - Driving pulley; 503 - Belt;

[0052] 600 - First support member; 700 - Second support member; 800 - Housing. Detailed implementation manner

[0053] In the related art, the working principle of a drum - type dryer is that hot and dry air enters the drum, contacts the tumbling and shaking clothes, and then becomes humid - hot air, which takes away the moisture in the clothes in the form of water vapor to dry the clothes. In existing dryer products, the drum of the dryer is supported inside the housing of the dryer. The rear end of the drum is rotatably installed on the housing, and the front end of the drum is supported by two support members provided on the front support member. However, during the operation of the dryer, the drum is subjected to gravity and the inclined tension of the belt, resulting in a large difference in the forces on the two support members, and one of the support members wears out relatively quickly, affecting the service life of the dryer.

[0054] To make the purpose, implementation manner, and advantages of this application clearer, the following will clearly and completely describe the exemplary implementation manner of this application in combination with the drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only a part of the embodiments of this application, rather than all of the embodiments.

[0055] It should be noted that the brief description of the terms in this application is only for the convenience of understanding the subsequent described implementation manner, rather than intending to limit the implementation manner of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0056] In addition, the terms "include" and "have" and any of their variations are intended to cover but not exclusively include. For example, a product or device including a series of components does not necessarily have to be limited to those clearly listed components, but may include other components that are not clearly listed or are inherent to these products or devices.

[0057] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, 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 therefore cannot be understood as a limitation to this application.

[0058] 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 the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] See also Figure 12 and Figure 13 An embodiment of the present application provides a clothes dryer, which may include a shell 800, and the shell 800 can be used to support and protect other structures of the clothes dryer.

[0062] In some embodiments of the present application, the housing 800 may include a front side, a rear side, a left side, a right side, an upper side, and a lower side. The front side of the housing 800 may be the side where the dryer door is located. The rear side of the housing 800 may be arranged opposite to the front side of the housing 800.

[0063] In some embodiments of the present application, the left side of the housing 800 may be the left hand side of the user when facing the front side of the housing 800. The right side of the housing 800 may be the right hand side of the user when facing the front side of the housing 800.

[0064] In some embodiments of the present application, the lower side of the housing 800 may be the side of the housing 800 facing the ground. The upper side of the housing 800 may be the side of the housing 800 facing away from the ground.

[0065] See also Figures 1-5 In some embodiments of the present application, the clothes dryer may include a base 400. The base 400 may be used to support other components of the clothes dryer and transfer the weight of the clothes dryer to the supporting surface.

[0066] See alsoFigures 2-4 , in some embodiments of the present application, the dryer may include a main body 200. The left and right ends of the main body 200 may be connected to the outer shell 800. The lower end of the main body 200 may be disposed on the base 400. The main body 200 may be positioned by the outer shell 800 and the base 400.

[0067] Please refer to Figures 1-4 and Figure 6 , in some embodiments of the present application, the dryer may include a drum 100. The bottom of the drum 100 is rotatably connected to the main body 200. The drum 100 is located above the base 400.

[0068] Generally, clothes to be dried may be placed inside the drum 100. One end of the drum 100 may be provided with a drum opening, and the clothes to be dried may be put into the drum 100 through the drum opening of the drum 100. The rotation axis of the drum 100 may be in a horizontal direction.

[0069] In some embodiments of the present application, a bearing may be installed on the main body 200, and a connecting shaft may be fixedly installed at the bottom of the drum 100. By connecting the connecting shaft with the bearing, the relative rotation between the drum 100 and the main body 200 can be realized.

[0070] In some embodiments of the present application, a connecting shaft may be fixedly installed on the main body 200, and a bearing may be installed at the bottom of the drum 100. By connecting the connecting shaft with the bearing, the relative rotation between the drum 100 and the main body 200 can be realized.

[0071] Generally, the dryer is placed against the wall. After the dryer is placed in place, the wall surface of the main body 200 facing away from the drum 100 may be close to the wall, and there is a gap between the wall surface and the wall.

[0072] In some embodiments of the present application, the dryer may include an evaporator and a condenser. Both the evaporator and the condenser are located inside the base 400. The evaporator is configured to be able to condense the flowing air when the air enters the base 400, so that the air precipitates moisture; the condenser is configured to heat the condensed air, and the air heated by the condenser can enter the drum 100 again.

[0073] In order to realize the rotation of the drum 100, a driving assembly needs to be provided to drive the drum 100. The driving assembly may be a transmission form such as belt drive or chain drive.

[0074] Please refer to Figure 5 and Figure 6 , in some embodiments of the present application, the dryer may include a driving assembly. The driving assembly may include a motor 501. The motor 501 may be disposed on the base 400. The motor 501 may provide power for the rotation of the drum 100. The base 400 may be used to support the motor 501.

[0075] Please refer toFigure 6 In some embodiments of the present application, the motor 501 can drive the drum 100 to rotate through the driving pulley 502 and the belt 503. The rotation of the drum 100 can be driven by the motor 501, the driving pulley 502 and the belt 503.

[0076] Specifically, the belt 503 can be sleeved on the driving pulley 502 and the drum 100, and the drum 100 is equivalent to a driven pulley. The motor 501 can be installed on the base 400. The motor 501 can drive the driving pulley 502 to rotate, and the driving pulley 502 can drive the drum 100 to rotate through the belt 503.

[0077] It should be noted that the motor 501 can drive the drum 100 to rotate through the belt 503. To reduce or avoid slipping of the belt 503, the belt 503 can have a pre-tightening force.

[0078] Please refer to Figures 1-4 and Figure 6 In some embodiments of the present application, the dryer can include a front support member 300. The front support member 300 can be located inside the housing 800. The front support member 300 can face the front side of the housing 800. The front support member 300 can play a supporting role.

[0079] Please refer to Figures 3-4 and Figures 8-9 In some embodiments of the present application, the front support member 300 can surround the outer periphery of the drum 100. The front support member 300 can be close to the mouth of the drum 100. A through hole 302 can be provided in the middle of the front support member 300, and at least part of the mouth of the drum can be inserted into the through hole 302 in the middle of the front support member 300.

[0080] Please refer to Figures 1-4 and Figures 6-7 In some embodiments of the present application, the drum 100 can be located between the front support member 300 and the main body 200 and can rotate between the front support member 300 and the main body 200.

[0081] Please refer to Figure 3 and Figure 9 In some embodiments of the present application, an air outlet 301 communicating with the inner cavity of the drum 100 can be provided on the front support member 300. The air outlet 301 can communicate with the through hole 302 of the front support member 300.

[0082] In some embodiments of the present application, the dry hot air entering the drum 100 can bring the water vapor on the clothes into the air duct of the dryer through the air outlet 301.

[0083] It should be noted that the air outlet 301 cannot be too small. A small air outlet 301 can affect the passage of the water vapor on the clothes and reduce the drying efficiency of the dryer.

[0084] See also Figures 1-4 In some embodiments of the present application, the front support member 300 may be disposed on the base 400. The base 400 may be located at the lower end of the front support member 300. The base 400 may be used to support the front support member 300.

[0085] In some embodiments of the present application, the front support member 300 may be fixed to the base 400 by bolts or screws to improve the connection stability between the front support member 300 and the base 400.

[0086] In some embodiments of the present application, the front support member 300 can be fixed to the base 400 by means of a snap connection. Specifically, the front support member 300 can be provided with a snap connection member, and the base 400 can be provided with a snap connection slot. The front support member 300 and the base 400 can be fixedly connected by the cooperation of the snap connection member and the snap connection slot. The snap connection method is fast and simple to operate, and can make the front support member 300 and the base 400 not easy to loosen or fall off, thereby improving the connection stability.

[0087] In some embodiments of the present application, the front support member 300 can be fixed to the base 400 by bonding. The bonding method makes the structure of the component relatively simple, reduces the need for auxiliary parts, and makes the connection process more convenient. By adopting the bonding method, there is no need to drill holes on the components, which can improve the strength of the components and improve the connection stability between the front support member 300 and the base 400.

[0088] See also Figure 8 In some embodiments of the present application, the clothes dryer may include a first support member 600 and a second support member 700 .

[0089] In some embodiments of the present application, the shapes and sizes of the first support member 600 and the second support member 700 may be the same.

[0090] See also Figure 4 , Figure 6 and Figure 10 In some embodiments of the present application, the first support member 600 and the second support member 700 are closer to the drum opening than the drum bottom. The first support member 600 and the second support member 700 can be located below the drum 100, and the first support member 600 and the second support member 700 can be used to support the drum opening of the drum 100.

[0091] See also Figure 4 and Figure 8 In some embodiments of the present application, the first support member 600 and the second support member 700 can be rotatably disposed on the front support member 300. The front support member 300 can be used to support the first support member 600 and the second support member 700.

[0092] In some embodiments of the present application, the front support member 300 may be fixedly provided with a first rotating shaft and a second rotating shaft. The first rotating shaft may be used to connect the first support member 600, and the second rotating shaft may be used to connect the second support member 700.

[0093] In some embodiments of the present application, the first support member 600 may be rotatably connected to the first rotating shaft, and the second support member 700 may be rotatably connected to the second rotating shaft. Specifically, the first support member 600 may be rotatably connected to the first rotating shaft through a bearing, and the second support member 700 may be rotatably connected to the second rotating shaft through a bearing.

[0094] Please refer to Figure 4 , Figure 8 and Figure 10 , in some embodiments of the present application, the drum 100 may be in rolling contact with the first support member 600 and the second support member 700. The first support member 600 may be disposed between the front support member 300 and the drum 100, and the second support member 700 may be disposed between the front support member 300 and the drum 100.

[0095] With such an arrangement, the wear rate of the first support member 600 and the second support member 700 can be slowed down, and the service life of the first support member 600 and the second support member 700 can be increased.

[0096] During the rotation of the drum 100, if the first support member 600 and the second support member 700 are fixed and immovable, the drum 100 is in sliding contact with the first support member 600 or the second support member 700, and the frictional force between the drum 100 and the first support member 600 or the second support member 700 is relatively large, causing the first support member 600 and the second support member 700 to wear quickly and reducing the service life of the first support member 600 and the second support member 700.

[0097] Please refer to Figure 8 and Figure 10 , in some embodiments of the present application, both the first support member 600 and the second support member 700 may be rollers, the rollers may be in rolling contact with the drum 100, and the rollers may rotate about their own axes.

[0098] During the rotation of the drum 100, the outer surface of the roller may have rolling friction with the drum 100. As time goes by, the outer surface of the roller wears, affecting the service life of the first support member 600 and the second support member 700 and even the life of the whole machine.

[0099] In some embodiments of the present application, in order to increase the service life of the rollers, a wear-resistant layer may be provided on the outer surface of the rollers.

[0100] Generally, the first support member 600 and the second support member 700 may be subjected to forces from the drum 100. After the laundry to be dried is placed in the drum 100, the drum 100 may be subjected to its own gravity, the pressure of the laundry, and the pulling force of the belt 503, and these forces may ultimately act on the first support member 600 and the second support member 700.

[0101] Since the motor 501 and the driving pulley 502 may be located on the same side of the drum 100 as the second support member 700, the driving pulley 502 may be closer to the second support member 700 than the first support member 600. The pulling force of the belt 503 may tend to be on the side closer to the second support member 700.

[0102] Please refer to Figure 11 , in some embodiments of the present application, looking from the mouth of the drum 100 towards the bottom of the drum, a plane rectangular coordinate system is defined in the plane where the mouth of the drum 100 is located. The center point of the mouth of the drum 100 is set as the origin O. The x-axis of the plane rectangular coordinate system is the extending direction of the width, and the positive direction of the x-axis is horizontally to the right. The y-axis of the plane rectangular coordinate system is the extending direction of the height, and the positive direction of the y-axis is vertically upward; the x-axis and the y-axis divide the plane where the mouth of the drum 100 is located into the first quadrant Ⅰ, the second quadrant Ⅱ, the third quadrant Ⅲ, and the fourth quadrant Ⅳ.

[0103] Among them, the upper right part enclosed by the positive direction of the x-axis and the positive direction of the y-axis is the first quadrant Ⅰ; the upper left part enclosed by the negative direction of the x-axis and the positive direction of the y-axis is the second quadrant Ⅱ; the lower left part enclosed by the negative direction of the x-axis and the negative direction of the y-axis is the third quadrant Ⅲ; the lower right part enclosed by the positive direction of the x-axis and the negative direction of the y-axis is the fourth quadrant Ⅳ.

[0104] Please refer to Figures 4-6 and Figures 10-11 , in some embodiments of the present application, the first support member 600 is disposed in one of the fourth quadrant Ⅳ and the third quadrant Ⅲ, and the second support member 700 and the driving pulley 502 are disposed in the other of the fourth quadrant Ⅳ and the third quadrant Ⅲ.

[0105] In some embodiments of the present application, the line connecting the rotation axes of the first support member 600 and the second support member 700 forms a first preset angle a1 with the extension direction of the width. The line connecting the rotation axis of the first support member 600 and the origin O forms a second preset angle a2 with the line connecting the rotation axis of the second support member 700 and the origin O; the line connecting the rotation axis of the first support member 600 and the origin O forms a third preset angle a3 with the negative y-axis direction; the line connecting the origin O and the rotation axis of the driving pulley 502 forms a fourth preset angle a4 with the line connecting the negative y-axis direction; the line connecting the rotation axis of the second support member 700 and the origin O forms a fifth preset angle a5 with the line connecting the negative y-axis direction; the direction of the resultant force F of F1 and F2 forms a sixth preset angle a6 with the negative y-axis direction.

[0106] In the embodiments of the present application, when designing the dryer, water flows on the left side of the whole machine and electricity on the right side, which follows the right-hand rule, that is: when designing the dryer circuit and equipment, the power cord is arranged on the right side, while the water inlet and drain outlet are arranged on the left side. This layout conforms to the usage habits of most people and can effectively reduce or avoid potential safety hazards caused by improper operation during use.

[0107] The technical effects at least include the following: First, arranging the power cord on the right side can reduce or avoid users touching the power cord when operating the water inlet and drain outlet, thus reducing the risk of electric shock. Second, most users are used to adding detergent and clothes from the left side when using the dryer, while the right side is used to connect the power supply. Such a layout is more ergonomic and in line with daily usage habits.

[0108] In the embodiments of the present application, since water flows on the left side and electricity on the right side of the whole dryer, the water box and air duct can be designed on the left side of the dryer base 400, and the motor 501 can be arranged on the right side of the dryer base 400. The evaporator and condenser can be arranged on the left side of the dryer base 400. In order to increase the size of the evaporator and condenser, the motor 501 needs to be installed as close as possible to the right side of the base 400. In this way, the positions of the motor 501 and the driving pulley 502 can be determined.

[0109] After the positions of the motor 501 and the driving pulley 502 are designed and determined, the installation position of the drum 100 needs to be designed. Generally, limited by the standard height of the dryer (for example, 840 mm), since the position of the drum 100 is affected by the height of the whole machine and the diameter of the drum 100, if the rotation center of the drum 100 is too high, the top of the drum 100 will rub against the top cover. If the rotation center of the drum 100 is too low, the drum 100 will interfere with the base 400 and the evaporator and condenser, thus affecting the drying performance. Therefore, the position of the drum 100 can be determined according to the standard height of the dryer and the diameter of the dryer.

[0110] The positions of the driving pulley 502 and the drum 100 are also determined according to the spatial layout of the dryer base. In this way, the included angle (the fourth preset angle) α4 between the line connecting the origin O and the rotation axis of the driving pulley 502 and the negative direction of the y-axis can also be determined.

[0111] In some embodiments of the present application, the value range of the fourth preset angle α4 can be 35° - 40°. For example, the fourth preset angle α4 can be 35° - 36°, 36° - 37°, 37° - 38°, 38° - 39°, or 39° - 40°. By way of example, the fourth preset angle α4 can be 35°, 35.5°, 36°, 36.5°, 37°, 37.5°, 38°, 38.5°, 39°, 39.5°, or 40°, etc. With such a setting, the sizes of the evaporator and the condenser can be increased, and the drying efficiency can be improved; the contact area between the belt 503 and the driving pulley 502 is relatively large, and the belt is not likely to slip.

[0112] In some embodiments of the present application, the included angle α1 between the line connecting the rotation axes of the first support member 600 and the second support member 700 and the extension direction of the width is a first preset angle, and the first preset angle α1 is greater than 0°.

[0113] Compared with the related art, since the first preset angle α1 is greater than 0°, the force on the second support member 700 is relatively reduced, and the force on the first support member 600 is relatively increased. The difference in the forces on the first support member 600 and the second support member 700 can be reduced, the problem of relatively fast wear of a single support member can be reduced, and further the problem of insufficient service life caused by uneven force can be reduced.

[0114] It should be noted that, please refer to Figure 11 , in some embodiments of the present application, the diameters of the first support member 600 and the second support member 700 can be Q2, the diameter of the support position of the drum 100 can be Q1, and the distance between the rotation axes of the first support member 600 and the second support member 700 can be Q3. The pulling force of the belt 503 on the drum 100 can be F2, the gravity of the drum 100 and the clothes inside can be F1, and the resultant force of F2 and F1 can be F. F can be supported and offset by the reaction forces of the first support member 600 and the second support member 700.

[0115] In the embodiments of the present application, considering that the value of the first preset angle α1 is as close as possible to or the same as the value of the sixth preset angle α6, at this time, the extension direction from the rotation axis of the first support member 600 to the rotation axis of the second support member 700 is perpendicular to the direction of the resultant force F. In this way, the resolved forces on the first support member 600 and the second support member 700 are approximately equal, and it will not cause one of the first support member 600 and the second support member 700 to be overloaded and the other to be underloaded.

[0116] In some embodiments of the present application, the value range of the first preset angle a1 is 5° to 12°. For example, the first preset angle a1 can be 5° to 6°, 6° to 7°, 7° to 8°, 8° to 9°, 9° to 10°, 10° to 11°, or 11° to 12°. By way of example, the first preset angle a1 can be 5°, 5.5°, 6°, 6.5°, 7°, 7.5°, 8°, 8.5°, 9°, 9.5°, 10°, 10.5°, 11°, 11.5°, or 12°, etc.

[0117] In the embodiments of the present application, after the fourth preset angle a4 is determined, the direction of F2 can also be determined. In this embodiment, the magnitude of F2 is considered to be between 60 - 70N, which can effectively reduce the slippage between the belt and the roller and can control the force on the belt.

[0118] In the embodiments of the present application, F1 is considered to be the sum of the gravity of the drum and the gravity of the clothing load, and the design range is considered to vary between 0 - 200N. The resultant force F of F1 and F2 can be equal to the forces received by the first support member 600 and the second support member 700. When the drum 100 is filled with clothes, the gravity of the drum 100 is the largest, and at this time, the first support member 600 and the second support member 700 are subjected to the most severe forces.

[0119] By way of example, when F1 takes a value of 200N, F2 takes a value of 70N, and the fourth preset angle a4 takes a value of 37°, the resultant force F of F1 and F2 = 258N, and the sixth preset angle a6 between the direction of the resultant force F of F1 and F2 and the negative y-axis is 9.6° ≈ 10°.

[0120] In this way, when the value range of the first preset angle a1 is 5° to 12°, the air volume of the air outlet 301 does not change significantly. And when the drum 100 is filled with clothes, it can make the force difference between the first support member 600 and the second support member 700 smaller, reduce the problem that the support member with a larger force wears faster, and further reduce the problem of insufficient service life caused by uneven force, and reduce the overall power of the machine.

[0121] When the first preset angle a1 is 5° - 12°, the first support member 600 can be made to be as far away from the y-axis as possible, leaving more space for the air outlet 301 of the front support member 300, with a wider application range; and the force difference between the first support member 600 and the second support member 700 is smaller.

[0122] It should be noted that the positions of the first support member 600 and the second support member 700 can be affected by the air outlet 301 of the front support member 300, such that the first preset angle a1 cannot be too small, otherwise it will increase the wind resistance and reduce the air volume, affecting the drying efficiency.

[0123] Accordingly, when the first preset angle a1 is less than 5°, the distance between the first support member 600 and the y-axis is relatively large. Although it can provide a relatively large space for the air outlet 301 of the front support member 300, the force difference between the first support member 600 and the second support member 700 is relatively large, and the force on the second support member 700 is much greater than that on the first support member 600, causing the second support member 700 to wear out quickly and reducing its service life.

[0124] Again, when the first preset angle a1 is greater than 12°, the distance between the first support member 600 and the y-axis is relatively small. The first support member 600 will occupy the space of the air outlet 301 of the front support member 300, increasing the resistance coefficient of the internal air duct of the dryer, affecting the air volume, drying slowly, increasing power consumption, and affecting the overall performance of the machine.

[0125] In some embodiments of the present application, please refer to Figures 10-11 , in the vertical direction, the height of the second support member 700 is higher than that of the first support member 600; in the horizontal direction, the distance between the second support member 700 and the y-axis is greater than the distance between the first support member 600 and the y-axis. The third preset angle a3 is less than the fifth preset angle a5. In this way, the force difference between the first support member 600 and the second support member 700 can be made smaller, and the problem of the second support member 700 with a larger force wearing out quickly can be reduced.

[0126] Please refer to Figure 11 , in some embodiments of the present application, the resultant force F can be decomposed onto the first support member 600 and the second support member 700, and the forces received by the first support member 600 and the second support member 700 can be equal to F11 and F22 respectively. The magnitudes of F11 and F22 can be calculated according to the principle of orthogonal decomposition.

[0127] It should be noted that under the condition of severe working conditions (full load), the direction of the resultant force F can be biased towards the side of the driving pulley 502 with the negative direction of the y-axis as the reference, that is, it can be biased towards the side of the second support member 700. The angle between the resultant force F and the force F22 on the second support member 700 is relatively small, and the angle between the resultant force F and the force F11 on the first support member 600 is relatively large.

[0128] Since the force F22 on the second support member 700 is greater than the force F11 on the first support member 600, the second support member 700 can be adjusted towards the side close to the motor 501, which can increase the angle between the resultant force F and the force F22 on the second support member 700, thereby reducing the value of the force F22 on the second support member 700.

[0129] It should be noted that after the second support member 700 is adjusted towards the side close to the motor 501, according to the orthogonal decomposition of forces, the force F11 on the first support member 600 and the force F22 on the second support member 700 increase simultaneously. This requires that the first support member 600 can move in the same direction as the second support member 700, that is, the first support member 600 can move towards the side close to the motor 501 following the second support member 700, so as to reduce the forces on the first support member 600 and the second support member 700.

[0130] In some embodiments of the present application, the line connecting the rotation axis of the first support member 600 and the origin O forms a second preset angle a2 with the line connecting the rotation axis of the second support member 700 and the origin O. In some embodiments of the present application, the first preset angle a1 and the second preset angle a2 can simultaneously affect the magnitudes of the forces on the first support member 600 and the second support member 700.

[0131] In some embodiments of the present application, the minimum value of the second preset angle a2 is 85°, and the maximum value of the second preset angle a2 is 90°. The value range of the second preset angle a2 is 85° to 90°. For example, the second preset angle a2 can be 85° - 86°, 86° - 87°, 87° - 88°, 88° - 89°, or 89° - 90°. By way of example, the second preset angle a2 can be 85°, 85.5°, 86°, 86.5°, 87°, 87.5°, 88°, 88.5°, 89°, 89.5°, or 90°, etc.

[0132] When the value range of the second preset angle a2 is 85° to 90°, the air volume at the air outlet 301 does not change significantly, which can make the force difference between the first support member 600 and the second support member 700 smaller, reduce the problem of faster wear of a single support member, and further reduce the problem of insufficient lifespan caused by uneven force, and reduce the overall machine power.

[0133] Please refer to Figures 3-8 , in some embodiments of the present application, during the rotation of the drum 100, the force difference between the first support member 600 and the second support member 700 is small.

[0134] Generally, during the rotation of the drum 100, the first support member 600 and the second support member 700 can be subjected to the resultant force of the gravity from the drum 100 and the load inside the drum and the belt tension. When the force difference between the first support member 600 and the second support member 700 is small, the wear of the first support member 600 and the second support member 700 can be relatively uniform, which can reduce the situation of faster wear of a single-side support member and improve the service life of the dryer.

[0135] By balancing the forces on the first support member 600 and the second support member 700 and reducing the force difference between the first support member 600 and the second support member 700, the forces on the two support members can be prevented from being too large for one and too small for the other.

[0136] The first support member 600 and the second support member 700 can support the drum 100. The distance between the rotation axes of the first support member 600 and the second support member 700 and the diameter of the drum 100 can affect the force conditions of the first support member 600 and the second support member 700.

[0137] Specifically, the smaller the diameter of the drum 100 and the larger the distance Q3 between the rotation axes of the first support member 600 and the second support member 700, the larger the second preset angle a2 can be, and the greater the forces on the first support member 600 and the second support member 700. The smaller the second preset angle a2, the smaller the forces on the first support member 600 and the second support member 700 can be.

[0138] The resultant force of the pressures of the drum 100 on the first support member 600 and the second support member 700 is F, and F11 and F22 are the component forces of the pressures of the drum 100 on the first support member 600 and the second support member 700 respectively. The magnitudes of F11 and F22 can be calculated by the principle of orthogonal decomposition. The smaller the angle a2 between F11 and F22, the smaller the force values of the first support member 600 and the second support member 700. Therefore, theoretically, the smaller the value range of the second preset angle a2, the better.

[0139] When the diameter Q1 of the drum 100 is fixed, when the distance Q3 between the rotation axes of the first support member 600 and the second support member 700 decreases, the second preset angle a2 can be decreased. The smaller the second preset angle a2, the smaller the distance Q3 between the rotation axes of the first support member 600 and the second support member 700 means. In this way, on the premise that the first preset angle a1 is determined, the first support member 600 on the left needs to move to the right, and the second support member 700 on the right needs to move to the left. The rightward movement of the first support member 600 on the left is affected by the air duct of the front support member 300, so that the first support member 600 has a maximum rightward movement value. If the rightward movement of the first support member 600 exceeds the maximum rightward movement value, the first support member 600 will occupy the air duct size, resulting in an increase in air duct resistance, a decrease in air volume, and further a decrease in the overall machine performance, making the drying of the dryer slower and the power consumption larger.

[0140] It should be noted that the positions of the first support member 600 and the second support member 700 can be affected by the air outlet 301 of the front support member 300. The second preset angle a2 cannot be too small, otherwise it will increase the air resistance and reduce the air volume, which can affect the drying efficiency.

[0141] Correspondingly, when the second preset angle a2 is less than 85°, the distance between the first support member 600 and the y-axis is small, and the first support member 600 will occupy the space of the air outlet 301 of the front support member 300, increasing the resistance coefficient of the internal air duct of the dryer, resulting in slower drying, increased power consumption, and affecting the overall performance of the machine.

[0142] When the second preset angle a2 is greater than 90°, the first support member 600 and the second support member 700 are subject to greater forces, reducing the service life of the first support member 600 and the second support member 700, and the overall power of the machine is relatively large.

[0143] In some embodiments of the present application, when the value range of the fourth preset angle a4 is 35° - 40°, the value range of the first preset angle a1 is 5° to 12°, and the value range of the second preset angle a2 is 85° to 90°, the air volume of the air duct can remain unchanged significantly. The first support member 600 and the second support member 700 have relatively high reliability, and the service life can be increased by about 20%. The rotational resistance of the drum 100 is reduced, and thus the overall power of the machine can be reduced by 10 - 15 W.

[0144] Please refer to Figures 10-11 , in some embodiments of the present application, the included angle between the connection line between the rotation axis of the second support member 700 and the origin O and the connection line in the negative y-axis direction is the fifth preset angle a5, and the fifth preset angle a5 is greater than the fourth preset angle a4. Along the horizontal direction, the distance between the second support member 700 and the y-axis can be greater than or less than the distance between the driving pulley 502 and the y-axis. When the drum 100 rotates idly, the drum 100 is not easily pulled off by the belt 503.

[0145] Correspondingly, if the fifth preset angle a5 is less than the fourth preset angle a4, when the drum 100 rotates idly, the drum 100 is easily pulled off by the belt 503.

[0146] Since the motor 501, the driving pulley 502 and the second support member 700 are located on the same side of the drum 100, along the horizontal direction, compared with the first support member 600, the driving pulley 502 can be closer to the second support member 700.

[0147] The driving pulley 502 can be closer to the second support member 700 in the horizontal direction. Therefore, the water box can be designed on the left side of the dryer base 400, and the motor 501 and the driving pulley 502 can be arranged on the right side of the dryer base 400. The evaporator and the condenser can be arranged on the left side of the dryer base 400.

[0148] The motor 501 and the driving pulley 502 need to be installed as close as possible to the right side of the base 400. Since the motor 501 is installed on the base 400, the greater the distance between the rotating shaft of the driving pulley 502 and the rotating shaft of the drum 100, the larger the wrap angle of the belt 503, the larger the contact area between the belt 503 and the driving pulley 502, and the less likely the belt 503 is to slip. Therefore, the installation position of the motor 501 should be moved as far down and to the right as possible to increase the distance between the rotating shaft of the driving pulley 502 and the rotating shaft of the drum 100 as much as possible. Installing the motor 501 and the driving pulley 502 as close as possible to the right side of the base 400 can increase the sizes of the evaporator and the condenser.

[0149] In the vertical direction, the position of the driving pulley 502 is lower than both the first support member 600 and the second support member 700. That is, in the vertical direction, the first support member 600 is located above the driving pulley 502; the second support member 700 is located above the driving pulley 502.

[0150] This is set because the first support member 600 and the second support member 700 need to support the drum 100, and the positions of the first support member 600 and the second support member 700 are relatively high and higher than the positions of the motor 501 and the driving pulley 502. Specifically, the position of the first support member 600 is higher than the position of the driving pulley 502 to facilitate the first support member 600 to support the drum 100; the position of the second support member 700 is higher than the position of the driving pulley 502 to facilitate the second support member 700 to support the drum 100.

[0151] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0152] For the sake of convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussions are not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. According to the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A dryer, characterized in that, Comprising: A base (400), A front support member (300) disposed on the base (400); A first support member (600) and a second support member (700) rotatably disposed on the front support member (300); A drum (100), the bottom of the drum (100) being rotatably connected to a main body (200), and the drum (100) being in rolling contact with the first support member (600) and the second support member (700); A motor (501) disposed on the base (400), the motor (501) driving the drum (100) to rotate through a driving pulley (502) and a belt (503); An evaporator and a condenser, both located within the base (400), the evaporator being configured to condense the flowing air when the air enters the base (400) so that the air precipitates moisture; the condenser being configured to heat the condensed air, and the air heated by the condenser can enter the drum (100) again; Looking from the mouth of the drum (100) towards the bottom of the drum, in the plane where the mouth of the drum (100) is located, a plane rectangular coordinate system is defined. The center point of the mouth of the drum (100) is set as the origin O. The x-axis of the plane rectangular coordinate system is the extension direction of the width, and the positive direction of the x-axis is horizontally to the right. The y-axis of the plane rectangular coordinate system is the extension direction of the height, and the positive direction of the y-axis is vertically upward; The x-axis and the y-axis divide the plane where the mouth of the drum (100) is located into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant; Wherein, the upper right part enclosed by the positive direction of the x-axis and the positive direction of the y-axis is the first quadrant; the upper left part enclosed by the negative direction of the x-axis and the positive direction of the y-axis is the second quadrant; the lower left part enclosed by the negative direction of the x-axis and the negative direction of the y-axis is the third quadrant; the lower right part enclosed by the positive direction of the x-axis and the negative direction of the y-axis is the fourth quadrant; The clothes dryer is configured such that: the first support member (600) is disposed in one of the fourth quadrant and the third quadrant, and the second support member (700) and the driving pulley (502) are disposed in the other of the fourth quadrant and the third quadrant; In the vertical direction, the height of the second support member (700) is higher than the height of the first support member (600); in the horizontal direction, the distance between the second support member (700) and the y-axis is greater than the distance between the first support member (600) and the y-axis; The connecting line between the rotation axis of the first support member (600) and the rotation axis of the second support member (700) forms a first preset angle (a1) with the extension direction of the width, wherein the first preset angle (a1) is greater than 0°.

2. The dryer according to claim 1, characterized in that, The value range of the first preset angle (a1) is 5° to 12°.

3. The clothes dryer according to claim 1, wherein The line connecting the rotation axis of the first support member (600) and the origin O forms a second preset angle (a2) with the line connecting the rotation axis of the second support member (700) and the origin O; the value range of the second preset angle (a2) is 85° to 90°.

4. The dryer according to claim 1, characterized in that, The angle between the line connecting the origin O and the rotation axis of the driving pulley (502) and the line in the y-axis direction is a fourth preset angle (a4); the value range of the fourth preset angle (a4) is 35 - 40°.

5. The dryer according to claim 1, characterized in that, The angle between the line connecting the origin O and the rotation axis of the driving pulley (502) and the line in the negative y-axis direction is a fourth preset angle (a4), the angle between the line connecting the rotation axis of the second support member (700) and the origin O and the line in the negative y-axis direction is a fifth preset angle (a5), and the fifth preset angle (a5) is greater than the fourth preset angle (a4).

6. The clothes dryer according to any one of claims 1-5, characterized in that, Vertically, the first support member (600) is located above the driving pulley (502).

7. The dryer according to any one of claims 1-5, characterized in that, Vertically, the second support member (700) is located above the driving pulley (502).

8. The dryer according to any one of claims 1-5, characterized in that, Compared with the bottom of the cylinder, the first support member (600) and the second support member (700) are closer to the cylinder mouth.

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