Clothes dryer

Abstract

This application discloses a clothes dryer, relating to the field of home appliance technology. The clothes dryer includes a housing, a body, a door, an assistive component, rollers, a cylinder, a pneumatic system, and a controller. The pneumatic system includes a power source, a door-opening air path, a moving air path, and a first control valve. The power source provides compressed air. The door-opening air path is configured to deliver the compressed air provided by the power source to the contact point with the assistive component. The moving air path is configured to deliver the compressed air provided by the power source to the cylinder. The moving air path and the door-opening air path can be selectively connected or simultaneously disconnected. The first control valve controls the on / off state of the door-opening air path and the moving air path. The controller is connected to the power source and the first control valve. The controller is configured to: upon receiving a command to open the door, control the first control valve to connect the door-opening air path and disconnect the moving air path; upon receiving a command to move the housing, control the first control valve to connect the moving air path and disconnect the door-opening air path. The clothes dryer provided by this application uses compressed air as a power source to solve the problems of inconvenient door opening and difficulty in moving the clothes dryer.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and more particularly to clothes dryers. Background Technology

[0002] A clothes dryer is a device that quickly dries wet clothes. It consists of a cabinet and a door. The cabinet has a loading port, and the door is used to open and close it. While the dryer is operating, the door must remain closed to prevent hot air from escaping, thus ensuring effective drying. After the dryer has finished drying, the user needs to open the door to remove the clothes. Because the drying process ensures optimal drying, the door is usually quite secure and requires considerable pulling force to open.

[0003] Currently, dryer door switches typically use either mechanical or electronic switches. When the door switch is mechanical, the user needs to apply a certain amount of force to pull the switch. When the door switch is electronic, it includes a sensor and control circuitry. When the user approaches the dryer, the sensor detects the user's presence and automatically opens the door via mechanical transmission.

[0004] However, when the door switch is mechanical, it requires a certain amount of arm strength from the user. For people with poor arm strength, opening the door can be difficult. Furthermore, since the amount of pulling force needs to be estimated by the user, too little or too much force can cause discomfort, resulting in a poor experience for users who seek a smooth experience.

[0005] When a dryer needs to be moved from one location to another, the traditional solution is to use another trolley to move the machine, which is time-consuming and labor-intensive. Usually, a second person is needed to assist in moving the dryer and keeping it from falling off. There is also the problem of damage to the machine during the moving process.

[0006] Therefore, this application proposes a clothes dryer. Summary of the Invention

[0007] In view of the shortcomings of the related technologies, this application provides a clothes dryer that uses compressed air as a power source to solve the problems of inconvenient door opening and difficulty in moving the clothes dryer.

[0008] This application provides a clothes dryer, comprising:

[0009] The container has an internal space for receiving and storing; the container has a dispensing opening on its front side, which is connected to the receiving space.

[0010] The simplified body is rotatably housed in the receiving space, and a drying chamber for drying clothes is formed inside the simplified body;

[0011] The door is connected to the container; the door is located at the delivery port in an openable manner.

[0012] A door-opening mechanism configured to reduce the pulling force required to open the door.

[0013] Rollers, which are located in the receiving part at the bottom of the box;

[0014] A cylinder is mounted in the housing; the cylinder is configured to drive the roller to extend out of the receiving part to contact the ground, or to retract the roller back into the receiving part.

[0015] A pneumatic system, comprising:

[0016] Power source, used to provide compressed air;

[0017] The door opening air passage is configured to deliver compressed air supplied by the power source to the contact point with the power assist component;

[0018] A mobile air circuit, configured to deliver compressed air supplied by the power source to the cylinder;

[0019] The first control valve is used to control the opening and closing of the door opening air passage and the moving air passage.

[0020] The controller is connected to the first control valve; the controller is configured to:

[0021] Upon receiving the command to open the door, the first control valve is controlled to connect the door opening air path and cut off the moving air path, thus entering the door opening mode.

[0022] Upon receiving a command to move the clothes dryer, the system controls the first control valve to connect the moving air circuit and cut off the door opening air circuit, thus entering the moving mode.

[0023] This technical solution uses a pusher to apply force to the door and an opening air path to transmit compressed air. The compressed air, through the pusher, applies force to the door, putting the dryer into an opening mode and reducing the pulling force on the door when opened, making it easier for the user to open. A cylinder drives a roller to extend from its housing and contact the ground, and a moving air path transmits compressed air to the cylinder, allowing it to drive the roller to extend from its housing. This causes the roller to roll relative to the ground, putting the dryer into a moving mode, thus facilitating its movement. A first control valve allows for selective connection of the opening and moving air paths, ensuring the reliability and safety of the air pressure system, thereby guaranteeing the reliability and safety of the dryer's operation.

[0024] In some embodiments, the dryer includes a pressure sensor for detecting the interaction force between the door and the housing; the pressure sensor is connected to a controller;

[0025] The controller is configured such that if the pressure sensor detects a value of 0 after entering the door opening mode, it controls the first control valve to cut off the door opening air path and exit the door opening mode.

[0026] This technical solution uses a pressure sensor to detect the interaction force between the door and the cabinet, determining whether the door is open and whether the dryer has exited the open mode, thus increasing the reliability of the dryer's operation.

[0027] In some embodiments, the controller is further configured to: when the pressure sensor detects a value greater than a first set value, control the first control valve to connect the door opening air path and cut off the moving air path, and enter the door opening mode.

[0028] This technical solution determines whether the user has manually performed the door-opening action by judging the relationship between the pressure sensor's detection value and a first set value, thereby determining whether the user intends to open the door and whether it is necessary to enter the door-opening mode, increasing the dryer's flexibility and improving the user experience.

[0029] In some embodiments, the controller is further configured to: when a moving dryer instruction is received in the door-open mode, exit the door-open mode and then enter the moving mode;

[0030] When a command to open the door is received in mobile mode, the system will re-enter the door opening mode after receiving a command to exit mobile mode.

[0031] This technical solution ensures the dryer's safety by allowing it to operate in either a moving mode or an open mode, thus preventing the dryer from being moved while the door is open or vice versa.

[0032] In some embodiments, the pneumatic system includes a first relay valve, which is located at the input end of the door opening air path or the input end of the moving air path; the first relay valve is used to control the air pressure input to the door opening air path or the moving air path; the first relay valve is connected to a controller.

[0033] The controller is configured to: determine whether the first relay valve has malfunctioned when entering the door opening mode or the moving mode; and control the pressure reduction of the door opening air path or the moving air path when the first relay valve has malfunctioned.

[0034] This technical solution ensures the output pressure of the door opening air path or the moving air path by setting a first relay valve and setting the gas pressure allowed by the first relay valve; by judging whether the first relay valve has malfunctioned when entering the door opening mode or the moving mode, the safety of the dryer operation is increased, and adverse consequences are avoided due to excessive air pressure in the door opening air path or the moving air path caused by the failure of the first relay valve.

[0035] In some embodiments, the pneumatic system further includes:

[0036] The first main road connects to the power source;

[0037] The first branch is connected to the output end of the first main branch;

[0038] The pressure regulating air circuit is connected to the output end of the first main circuit; the pressure regulating air circuit and the first branch circuit are connected in parallel; the pressure regulating air circuit is equipped with a pressure regulating air sensor, which is connected to the controller.

[0039] The intermediate air passage is connected to the output end of the first branch and the output end of the pressure regulating air passage. The output end of the intermediate air passage is connected to the door opening air passage and the movable air passage component.

[0040] The first relay valve is located at the connection between the first branch, the pressure regulating gas line and the intermediate gas line;

[0041] The controller is configured to determine that the first relay valve has malfunctioned when the absolute value of the difference between the detected value of the pressure regulating sensor and the detected value of the working pressure sensor exceeds a first range.

[0042] This technical solution ensures the reliability of the pneumatic system by installing a pressure regulating air pressure sensor in the pressure regulating air circuit and comparing the detected value of the pressure regulating air pressure sensor with the detected value of the working air pressure sensor to determine whether the first relay valve has malfunctioned.

[0043] In some embodiments, the dryer includes a blower assembly disposed on the outside of the body; the cylinder wall of the body is provided with ventilation holes communicating with the drying chamber, and the blower assembly is configured to deliver hot air to the drying chamber through the ventilation holes;

[0044] The pneumatic system also includes:

[0045] The air supply path is configured to deliver air to the blowing assembly; the air supply path is connected to the power source.

[0046] The second control valve is used to control the opening and closing of the air supply path; the second control valve is connected to the controller.

[0047] The controller is configured to: upon receiving an air supply command, control the second control valve to open the air supply path and enter the air supply mode;

[0048] Upon receiving a stop air supply command, the second control cuts off the air supply path and exits the air supply mode.

[0049] This technical solution sets up an air supply path to deliver compressed air from the power source to the blower assembly, ensuring sufficient airflow from the blower assembly to the drying chamber. A second control valve controls the opening and closing of the air supply path, allowing the controller to connect the air supply path via the second control valve after receiving an air supply command, thus putting the dryer into air supply mode.

[0050] In some embodiments, the dryer includes a heating load located outside the body; the heating load generates heat during dryer operation.

[0051] The pneumatic system also includes a cooling air passage configured to blow air to the heat-generating load; the cooling air passage is connected in parallel with the air supply passage; the second control valve is also used to control the on / off state of the cooling air passage.

[0052] The controller is further configured to: upon receiving a heat dissipation command, control the second control valve to open the heat dissipation air passage and enter the heat dissipation mode;

[0053] Upon receiving a stop cooling command, the second control valve is controlled to cut off the cooling air path and exit the cooling mode.

[0054] This technical solution uses a cooling air path to transmit compressed air supplied by the power source to the heating element, thereby increasing the heat dissipation effect of the heating element. A second control valve controls the opening and closing of the cooling air path. After receiving a heat dissipation command, the controller connects the cooling air path through the second control valve, thus putting the dryer into the heat dissipation mode.

[0055] In some embodiments, the air supply path and the heat dissipation path are connected to a first air path, one end of the first air path is connected to the air supply path, the other end of the first air path is connected to the heat dissipation path, the first air path is provided with a third control valve, the third control valve is used to control the opening and closing of the first air path; the first air path is connected to a controller.

[0056] The controller is further configured to: control the third control valve to open the first air passage when a cooling command is received in cooling mode, or when a cooling command is received in air supply mode.

[0057] This technical solution connects the air supply air path and the heat dissipation air path by setting a first air path. When the heat dissipation mode receives an air supply command, or when the air supply mode receives a heat dissipation command, the third control valve is controlled to open the first air path, so that the dryer can be in both heat dissipation mode and air supply mode at the same time.

[0058] In addition, this application also provides a clothes dryer, comprising:

[0059] The container has an internal space for receiving and storing; the container has a dispensing opening on its front side, which is connected to the receiving space.

[0060] The simplified body is rotatably housed in the receiving space, and a drying chamber for drying clothes is formed inside the simplified body;

[0061] The door is connected to the container; the door is located at the delivery port in an openable manner.

[0062] Rollers, which are located in the receiving part at the bottom of the box;

[0063] A cylinder is mounted in the housing; the cylinder is configured to drive the roller to extend out of the receiving part to contact the ground, or to retract the roller back into the receiving part.

[0064] A pneumatic system, comprising:

[0065] Power source, used to provide compressed air;

[0066] The door opening air passage is configured to apply thrust to the door body using compressed air supplied by the power source.

[0067] The movable air circuit has a roller connected to its output end; the movable air circuit is configured to deliver compressed air supplied by the power source to the cylinder.

[0068] The first control valve is used to control the opening and closing of the door opening air passage and the moving air passage.

[0069] Pressure sensors are used to detect the interaction force between the door and the housing;

[0070] The controller is connected to the pressure sensor; the controller is configured to: when the detected value of the pressure sensor is greater than a first set value, control the first control valve to connect the door opening air path and cut off the moving air path, and enter the door opening mode;

[0071] Once the door opening mode is entered, when the pressure sensor detects a value of 0, the first control valve is controlled to cut off the door opening air path and exit the door opening mode.

[0072] This technical solution uses a pusher to apply force to the door and an opening air path to transmit compressed air. The compressed air, through the pusher, applies force to the door, putting the dryer into an opening mode and reducing the pulling force on the door when opened, making it easier for the user to open. A cylinder drives a roller to extend from its housing and contact the ground, and a moving air path transmits compressed air to the cylinder, allowing it to drive the roller to extend from its housing. This causes the roller to roll relative to the ground, putting the dryer into a moving mode, facilitating its movement. A first control valve allows for selective connection of the opening and moving air paths, ensuring the reliability of the air pressure system. A pressure sensor detects the interaction force between the door and the housing. The controller, based on the relationship between the pressure sensor's reading and a first set value, determines whether the user intends to open the door, thus determining whether to enter the opening mode. Furthermore, the controller uses the pressure sensor's reading to determine whether the door is actually open in the opening mode, ensuring the dryer's reliable operation.

[0073] In the above embodiments, compressed gas is used to apply a pushing force to the assisting component, which in turn applies a pushing force to the door, thereby reducing the pulling force required for the user to manually open the door and assisting the user in opening the door; compressed air is used to transmit to the cylinder, so that the cylinder can drive the roller to extend out of the receiving part, thereby causing the roller to roll relative to the ground, thus facilitating the movement of the dryer.

[0074] The aforementioned dryer not only solves the problem of the inconvenience of opening the door of existing dryers, but also the problem of the inconvenience of moving dryers. Furthermore, it has a simple overall structure, is easy to arrange, has a high degree of automation, and high operational reliability. Attached Figure Description

[0075] Figure 1 A schematic diagram of a clothes dryer according to some embodiments is shown;

[0076] Figure 2 A schematic diagram of the dryer from another angle according to some embodiments is shown;

[0077] Figure 3 A schematic diagram of the air pressure system in a dryer according to some embodiments is shown;

[0078] Figure 4 A schematic diagram of the air path for the moving module and the door opening module in a dryer according to some embodiments is shown;

[0079] Figure 5 An exemplary schematic diagram of the moving module and the door opening module in a dryer according to some embodiments is shown;

[0080] Figure 6 An exemplary control flowchart of the door opening mode is shown according to some embodiments;

[0081] Figure 7 An exemplary diagram of the airflow path of the heat dissipation module and the air supply module according to some embodiments is shown;

[0082] Figure 8 An exemplary schematic diagram of the heat dissipation module and the air supply module according to some embodiments is shown;

[0083] Figure 9 An exemplary schematic diagram of a voltage regulating module according to some embodiments is shown;

[0084] Figure 10 An exemplary schematic diagram of the speed control module is shown according to some embodiments;

[0085] Figure 11 A schematic diagram of a controller according to some embodiments is shown as an example;

[0086] Figure 12An exemplary schematic diagram of the control flow of a controller according to some embodiments is shown;

[0087] Figure 13 An exemplary schematic diagram of the control logic of a controller according to some embodiments is shown.

[0088] Among them, 100 is the housing; 200 is the door; 300 is the pressure sensor; 400 is the roller; 500 is the pneumatic system; and 600 is the elastic element.

[0089] 101. Reception Department;

[0090] 510 Power source; 520 Mobility module; 530 Door opening module; 540 Heat dissipation module; 550 Air supply module; 560 Speed ​​control module; 570 Pressure regulation module; 580 Air storage tank;

[0091] 501. Relief valve; 502. Check valve; 503. Shut-off valve; 504. Filter; 505. Pressure reducing valve; 506. Throttling valve; 507. Regulating valve; 508. Relay valve; 509. Control valve;

[0092] 505a, First pressure reducing valve; 505b, Second pressure reducing valve; 507a, Pressure regulating valve; 507b, Speed ​​regulating valve; 508a, First relay valve; 508b, Second relay valve; 509a, First control valve; 509b, Second control valve; 509c, Third control valve;

[0093] 5071, First solenoid valve; 5072, Second solenoid valve; 5073, Third solenoid valve; 5074, Fourth solenoid valve;

[0094] 511. First Main Road; 512. Second Main Road;

[0095] 521. Second pressure sensor; 522. Moving air path;

[0096] 531. First air pressure sensor; 532. Door opening air circuit;

[0097] 541. Third wind speed sensor; 542. Second air amplification device; 543. Cooling air path; 544. First air path;

[0098] 551. Second wind speed sensor; 552. First air amplification device; 553. Air supply path;

[0099] 561. Speed-regulating air path; 562. Second branch; 563. Second intermediate air path; 564. First wind speed sensor; 571. Pressure-regulating air path; 572. First branch; 573. First intermediate air path; 574. Pressure-regulating air pressure sensor. Detailed Implementation

[0100] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0101] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0102] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms can be used interchangeably where appropriate.

[0103] The terms “including” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0104] The clothes dryer provided in this application can have various implementation forms. The clothes dryer can be a heat pump dryer, a condenser dryer, or a direct-vent dryer.

[0105] Figure 1 and Figure 2 This is one specific embodiment of the dryer according to this application. The dryer includes a housing 100, which forms the exterior of the dryer. The housing 100 has a receiving space inside, which is used to house and fix various components of the dryer to ensure the structural stability of the dryer. The height of the housing 100 is from the bottom to the top.

[0106] The container 100 is provided with a dispensing port (not shown), which is connected to the interior of the container 100 and is located on the front side of the container 100.

[0107] like Figure 1 As shown, the dryer includes a door 200, which is connected to the housing 100. The door 200 is located at the dispensing inlet in an openable manner, and is used to open or close the dispensing inlet.

[0108] The dryer includes a body that is rotatably disposed within a housing space, and a drying chamber for drying clothes is formed inside the body.

[0109] The device has an opening that connects to the drying chamber. The opening is also connected to the loading port, allowing users to load or unload clothes into or from the drying chamber through the loading port.

[0110] The simplified drum wall is provided with ventilation holes that communicate with the drying chamber, so that airflow enters the drying chamber through the ventilation holes and comes into contact with the clothes, thereby achieving the drying of the clothes.

[0111] The dryer includes a drive motor, which drives the body to rotate; the drive motor is mounted on the housing 100. It should be noted that the axis of rotation of the body can be set in the horizontal direction.

[0112] The dryer includes a blower assembly, which is used to introduce air into the drying chamber. Under the action of the blower assembly, the air enters the drying chamber through the ventilation holes.

[0113] In some embodiments, the blower assembly includes components such as a blower or fan and pipes connected to the blower or fan. The blower assembly is a conventional technique in the art and will not be described in detail here.

[0114] A clothes dryer includes a heating element that supplies hot air into the drying drum to dry clothes.

[0115] In some embodiments of this application, the heating component uses the principle of electric heating to heat the air in the drying cylinder.

[0116] In other embodiments of this application, the heating assembly utilizes the circulating flow of refrigerant to heat air.

[0117] The specific structure and heating principle of the heating components differ in different types of dryers. The heating components are existing technology in this field and will not be described in detail here.

[0118] In a side-opening dryer, when the user applies a pulling force to the door 200, the cabinet 100 typically applies an equal and opposite pulling force to keep the door 200 closed. This creates a force balance between the user's pulling force and the cabinet 100's pulling force. The door 200 will only be successfully opened when the user's pulling force exceeds the maximum resistance that the cabinet 100 can provide. While this interaction between the door 200 and the cabinet 100 effectively ensures the tight closure of the door 200 and the dryer's operational reliability, excessive resistance can also lead to difficulty in opening the door, affecting the user experience.

[0119] like Figure 3 As shown in the figure, in this application, by setting the door opening module 530, the door opening module 530 applies a pushing force to the door body 200 to reduce the pulling force required for the user to open the door body 200, making it convenient for the user to open the door body 200.

[0120] The door opening module 530 includes an assist component that applies force to the door 200 to reduce the pulling force required for the user to open the door 200, making it easier for the user to open the door 200.

[0121] like Figure 4 and Figure 5 As shown, the door opening module 530 includes a door opening air passage 532. The input end of the door opening air passage 532 is connected to a power source 510, and the output end of the door opening air passage 532 is connected to an assistive component. The door opening air passage 532 is used to deliver compressed air provided by the power source 510 to the contact with the assistive component.

[0122] The power source 510 supplies compressed air into the door opening air passage 532, causing the gas pressure in the door opening air passage 532 to continuously increase. The gas in the door opening air passage 532 exerts a large force on the assisting component, thereby causing the assisting component to exert a force on the door body 200.

[0123] In some embodiments, the dryer includes a door lock connected to the housing 200. The door lock locks the door 200 to prevent the door 200 from opening the outlet, or unlocks the door 200 to allow the outlet to be opened. An assisting element acts on the door lock to reduce the restraining force of the door lock on the door 200, thereby reducing the pulling force exerted on the door 200 by the user when opening the door.

[0124] For ease of description and understanding, in this embodiment, the assisting component is set as a pushing component. The assisting component applies a pushing force to the door body 200 to reduce the pulling force applied to the door body 200 when the user opens the door.

[0125] When the controller receives the door opening command, it controls the dryer to enter the door opening mode. After the door 200 is opened, it exits the door opening mode.

[0126] It should be noted that in the existing technology, users can open the door manually, enter the door opening command on their mobile phone, or enter the door opening command on the electronic control module installed in the enclosure 100, etc.

[0127] In some embodiments of this application, such as Figure 1 As shown, the dryer includes a pressure sensor 300, which detects the interaction force between the door 200 and the housing 100. When the detected value of the pressure sensor 300 is greater than a first preset value, it indicates that the user has pulled the door 200, and the user has applied a relatively large pulling force to the door 200, suggesting that the user intends to open the door 200. When the detected value of the pressure sensor 300 is less than or equal to the first preset value, the user has applied a relatively small pulling force to the door 200, and the user may not intend to open the door 200.

[0128] The controller is connected to the pressure sensor 300 and is configured to: determine that the user has the intention to open the door when the detection value of the pressure sensor 300 is greater than a first set value; and determine that the user does not have the intention to open the door when the detection value of the pressure sensor 300 is less than or equal to the first set value.

[0129] In this application, a pressure sensor 300 is set to detect the interaction force between the cabinet 100 and the door 200. Based on the detection value of the pressure sensor 300, it is determined whether the user intends to open the door, so as to control the operation of the assistive component. During the door opening process, the state of the door 200 can be determined based on the detection value of the pressure sensor 300, so as to control the assistive component to stop working. The assistive component has a fast response speed and a good assistive door opening effect.

[0130] It should be noted that after entering the door opening mode, if the detection value of the pressure sensor 300 is 0, it means that the door 200 has been opened, and the dryer will exit the door opening mode.

[0131] That is, the controller is configured to: after entering the door opening mode, if the detection value of the pressure sensor is 0, control the first control valve to cut off the door opening air path and exit the door opening mode.

[0132] In some embodiments, such as Figure 6 As shown, the controller is configured to: when the detection value of the pressure sensor is greater than a first set value, control the first control valve to connect the door opening air path and cut off the moving air path, and enter the door opening mode; after entering the door opening mode, when the detection value of the pressure sensor is 0, control the first control valve to cut off the door opening air path and exit the door opening mode.

[0133] Under the condition that other factors of the dryer remain unchanged, the minimum opening force required for the door 200 is a constant value, called the predetermined value G. It should be noted that the predetermined value G is equal to the maximum interaction force between the cabinet 100 and the door 200.

[0134] It can be assumed that, under the condition that other conditions of the dryer remain unchanged, the door 200 will be opened as long as the opening force on the door body 200 is equal to the predetermined value G. That is, assuming that the pulling force applied by the user to the door body 200 is F1 and the pushing force applied by the assist component to the door body 200 is F2, then the door body 200 will be opened when F1+F2≥G.

[0135] like Figure 1 and Figure 2 As shown, the dryer includes rollers 400, which are located at the bottom of the housing 100. The rollers 400 are in contact with the ground and can roll relative to the ground to reduce the resistance of moving the dryer and facilitate the relocation of the dryer.

[0136] In this application, the bottom of the box 100 is provided with a receiving part 101, which is arranged along the height direction of the box 100. When the box 100 needs to be moved, the roller 400 extends out of the receiving part 101 and contacts the ground; when the box 100 does not need to be moved, the roller 400 retracts into the receiving part 101 and the bottom surface of the box 100 contacts the ground.

[0137] Specifically, the dryer includes a cylinder, which drives the roller 400 to extend out of or retract into the receiving part 101; gas is introduced into the cylinder to make it extend, and gas is extracted from the cylinder to make it retract.

[0138] In this embodiment, the cylinder extends and retracts along the height direction of the housing 100, and the roller 400 is located at the bottom of the cylinder. When the cylinder extends, the roller 400 can contact the ground, and when the cylinder retracts, the roller 400 can retract into the receiving part 101.

[0139] It should be noted that, as Figure 4 As shown, in order to prevent the roller 400 from making rigid contact with the ground, the roller 400 is connected to an elastic element 600. The roller 400 is connected to the cylinder through the elastic element 600. The elastic element 600 is used to buffer the force between the roller 400 and the ground. The connection between the roller 400 and the cylinder through the elastic element 600 is a conventional technical means in this field and will not be described in detail here.

[0140] In some embodiments, the elastic element 600 is a spring.

[0141] When the driving force of the cylinder on the roller 400 is less than the weight of the dryer, the roller 400 will retract into the receiving part 101 under the weight of the dryer. Therefore, the minimum driving force of the cylinder on the roller 400 is the weight of the dryer.

[0142] like Figure 3 As shown, this application sets up a moving module 520, through which compressed air is introduced into the cylinder to drive the cylinder to extend, thereby making the roller 400 contact the ground, thus facilitating the movement of the housing 100.

[0143] like Figure 4 and Figure 5 As shown, the moving module 520 includes a moving air passage 522. The input end of the moving air passage 522 is connected to the power source 510, and the output end of the moving air passage 522 is connected to the cylinder, for delivering compressed air to the cylinder.

[0144] The power source 510 supplies compressed air to the cylinder through the moving air passage 522, driving the cylinder to extend, thereby causing the cylinder-driven roller 400 to extend out of the receiving part 101 and contact the ground.

[0145] It should be noted that when the dryer is moved, the driving force of the cylinder on the roller 400 remains unchanged, so that the roller 400 can roll relative to the ground and will not retract into the receiving part 101 under the gravity of the dryer.

[0146] It should also be noted that when the driving force of the cylinder on the roller 400 remains constant, the moving air passage 522 is in a pressure-holding state.

[0147] After the controller receives the command to move the dryer, the dryer enters the moving mode. When the dryer is moved into place, the controller receives the command to exit the moving mode, and the dryer exits the moving mode.

[0148] like Figure 3 As shown, the dryer includes an air supply module 550, which supplies air to the blower assembly so that the blower assembly can introduce air into the drying chamber.

[0149] like Figure 7 and Figure 8 As shown, the air supply module 550 includes an air supply passage 553, which is connected to the power source 510 and is used to transmit compressed air to the blower assembly.

[0150] The air supply module 550 includes a first air expansion device 552, which is located at the output end of the air supply path 553 and is used to amplify the lateral area of ​​the airflow.

[0151] In some embodiments, the first air amplification device 552 is shaped like a funnel for amplifying airflow.

[0152] The power source 510 introduces compressed air into the air supply passage 553, which then enters the drying chamber through the ventilation holes, thereby accelerating the drying efficiency of clothes.

[0153] After the controller receives the air supply command, the dryer enters the air supply mode. When the controller receives the command to exit the air supply mode, the dryer exits the air supply mode.

[0154] During the operation of a clothes dryer, some components generate heat, such as the drive motor and the compressor in a heat pump dryer. If this heat is not dissipated in time, it may affect the normal operation of the dryer. It should be noted that, for ease of explanation, the components that require heat dissipation during the dryer's operation are referred to as heat loads.

[0155] like Figure 3 As shown, in this application, a heat dissipation module 540 is provided, which blows air onto the heat-generating load to accelerate the contact between the air and the heat dissipation components, thereby increasing the heat dissipation effect of the heat-generating load.

[0156] like Figure 7 and Figure 8As shown, the heat dissipation module 540 includes a heat dissipation air passage 543, which is connected to the power source 510. By introducing compressed air into the heat dissipation air passage 543, the compressed air is blown towards the heat-generating load through the heat dissipation air passage 543, thereby accelerating the contact between the air and the heat dissipation components and increasing the heat dissipation effect of the heat-generating load.

[0157] The heat dissipation module 540 includes a second air expansion device 542, which is located at the output end of the heat dissipation air passage 543 and is used to amplify the lateral area of ​​the airflow.

[0158] In some embodiments, the second air amplification device 542 is in the shape of a funnel for amplifying airflow.

[0159] After the controller receives a cooling command, the dryer enters the cooling mode. When the controller receives a command to exit the cooling mode, the dryer exits the cooling mode.

[0160] In this embodiment, when the door opening module 530 is activated, the dryer is in the door opening mode; when the moving module 520 is activated, the dryer is in the moving mode; when the heat dissipation module 540 is activated, the dryer is in the heat dissipation mode; and when the air supply module 550 is activated, the dryer is in the air supply mode.

[0161] The dryer includes a pneumatic system 500, which provides and delivers compressed gas to assist in opening the door 200, extending the cylinder, dissipating heat from the heat load, and delivering air to the blower assembly, thereby increasing the dryer's performance and improving the user experience.

[0162] In this application, the cooling air passage 543, the air supply air passage 553, the door opening air passage 532, and the movable air passage 522 are supplied with air through the same power source 510. The cooling air passage 543, the air supply air passage 553, the door opening air passage 532, and the movable air passage 522 share at least part of the transmission pipeline to simplify the overall structure of the air pressure system 500 and facilitate its layout.

[0163] The specific composition of the pneumatic system 500 in this application will be described in detail below.

[0164] The pneumatic system 500 includes a power source 510 for supplying compressed air. The power source 510 is connected to a controller for controlling the power source 510.

[0165] In some embodiments, the power source 510 is a gas pump, also known as an air compressor, which is a device that converts the mechanical energy of a prime mover (usually an electric motor) into gas pressure energy and is a compressed air pressure generating device.

[0166] The pneumatic system 500 includes a first main circuit 511, the input of which is connected to a power source 510, and the output of which is connected to a door opening air passage 532 and a moving air passage 522, respectively. A portion of the compressed air supplied by the power source 510 enters the first main circuit 511, and the compressed air entering the first main circuit 511 then enters either the door opening air passage 532 or the moving air passage 522 according to the dryer's operating needs.

[0167] The air pressure system 500 includes a second main air circuit 512, which is independently set up from the first main air circuit 511. The second main air circuit 512 is connected to the cooling air circuit 543 and the air supply air circuit 553 respectively. A portion of the compressed air provided by the power source 510 enters the second main air circuit 512, and the compressed air entering the second main air circuit 512 then enters the cooling air circuit 543 or the air supply air circuit 553 according to the working needs of the dryer.

[0168] The pneumatic system 500 includes an overflow valve 501, which is respectively installed in the first main line 511 and the second main line 512. The overflow valve 501 is used to regulate and release excess gas in the pipeline.

[0169] The pneumatic system 500 includes a one-way valve 502, which is respectively installed in the first main line 511 and the second main line 512. The one-way valve 502 is used to restrict the direction of air flow in the pipeline and prevent air from flowing in reverse.

[0170] The pneumatic system 500 includes an air storage tank 580, which is located on the first main line 511 and the second main line 512. The air storage tank 580 is used to store compressed air. When the power source 510 is damaged, the air storage tank 580 serves as a backup air source to provide compressed air.

[0171] The pneumatic system 500 includes a shut-off valve 503, which is respectively installed on the first main line 511 and the second main line 512. The shut-off valve 503 is used to control the opening and closing of the pipeline to control the air flow in the pipeline.

[0172] The pneumatic system 500 includes a filter 504, which is respectively installed in the first main line 511 and the second main line 512. The filter 504 is used to filter the gas in the pipeline and prevent impurities in the gas from entering the door opening air passage 532, the moving air passage 522, the heat dissipation air passage 543, and the air supply air passage 553.

[0173] The pneumatic system 500 includes a control valve 509, which controls the opening and closing of the door opening air passage 532, the moving air passage 522, the heat dissipation air passage 543, and the air supply air passage 553.

[0174] Specifically, the pneumatic system 500 includes a first control valve 509a, which is located at the input end of the door opening air passage 532 and the input end of the moving air passage 522, and is used to control the opening and closing of the door opening air passage 532 and the moving air passage 522; the first control valve 509a is connected to the controller.

[0175] In this application, the door opening air passage 532 and the moving air passage 522 can only be connected to one of them or disconnected at the same time. On the one hand, this is to prevent the user from moving the box 100 when opening the door 200, or the door 200 from being opened when moving the box 100, thus avoiding adverse consequences. On the other hand, in this application, both the door opening air passage 532 and the moving air passage 522 deliver gas through the first main passage 511. Connecting the door opening air passage 532 and the moving air passage 522 at the same time may result in insufficient compressed air.

[0176] The controller is configured to: when receiving the instruction to open the door 200, control the first control valve 509a to connect the door opening air passage 532 and cut off the moving air passage 522, and enter the door opening mode; when receiving the instruction to move the box 100, control the first control valve 509a to connect the moving air passage 522 and cut off the door opening air passage 532, and enter the moving mode.

[0177] The controller is further configured to: when receiving a command to move the dryer in the door-opening mode, exit the door-opening mode and then re-enter the moving mode; when receiving a command to open the door in the moving mode, re-enter the door-opening mode after receiving a command to exit the moving mode.

[0178] In some embodiments, the first control valve 509a is a three-position three-way solenoid valve. The controller controls the operation of the first control valve 509a by controlling its energization and de-energization.

[0179] When the A side of the first control valve 509a is energized, the moving air passage 522 is connected. When the B side of the first control valve 509a is energized, the opening air passage 532 is connected. When neither the A side nor the B side of the first control valve 509a is energized, both the moving air passage 522 and the opening air passage 532 are cut off.

[0180] In some embodiments of this application, such as Figure 5 As shown, the door opening air passage 532 is equipped with a first air pressure sensor 531, which is used to detect the gas pressure of the door opening air passage 532; the first air pressure sensor 531 is connected to the controller. The detection value of the first air pressure sensor 531 is recorded as A2.

[0181] Based on the overall weight of the dryer, the driving force of the cylinder on the roller 400 can be calculated. Based on the driving force of the cylinder on the roller 400, the gas pressure input to the cylinder through the moving air passage 522 can be calculated and denoted as the target pressure F1.

[0182] like Figure 4 and Figure 5 As shown, the movable air path 522 is equipped with a second air pressure sensor 521, which is used to detect the pressure of the gas input into the cylinder of the movable air path 522. The second air pressure sensor 521 is connected to the controller. The detected value of the second air pressure sensor 521 is recorded as A3.

[0183] The pneumatic system 500 includes a second control valve 509b, which is located at the input end of the air supply passage 553 and the input end of the heat dissipation passage 543, and is used to control the on / off state of the air supply passage 553 and the heat dissipation passage 543; the second control valve 509b is connected to the controller.

[0184] The controller is configured to: upon receiving an air supply command, control the second control valve 509b to connect the air supply path 553 and enter the air supply mode; upon receiving a stop air supply command, control the second control valve 509b to cut off the air supply path 553 and exit the air supply mode.

[0185] The controller is configured to: upon receiving a command to cool the heat-generating load, control the second control valve 509b to connect the cooling air passage 543 and enter the cooling mode; upon receiving a command to stop air supply, control the second control valve 509b to cut off the cooling air passage 543 and exit the cooling mode.

[0186] In some embodiments, the second control valve 509b is a two-position three-way solenoid valve. The controller controls the operation of the second control valve 509b by controlling its energization and de-energization. When the second control valve 509b is energized, the cooling air passage 543 is connected and the air supply passage 553 is cut off; when the second control valve 509b is de-energized, the air supply passage 553 is connected and the cooling air passage 543 is cut off.

[0187] The air pressure system 500 includes a regulating valve 507, which is used to regulate the pipeline pressure or gas flow rate so that the air pressure or flow rate output from the pipeline meets the working needs of the dryer.

[0188] In this application, the pressure of the gas output from the door opening air passage 532 and the gas output from the moving air passage 522 are adjusted by setting the pressure regulating module 570, so as to ensure that the gas pressure output from the door opening air passage 532 meets the requirements of the power assist component and the gas pressure output from the moving air passage 522 meets the requirements of the cylinder, thereby ensuring the reliability of the operation of the door opening air passage 532 and the moving air passage 522.

[0189] Specifically, such as Figure 9 As shown, the voltage regulating module 570 includes a first branch 572, the input terminal of which is connected to the output terminal of the first main branch 511.

[0190] The pressure regulating module 570 includes a pressure regulating air path 571, which is connected to the output end of the first main path 511; the pressure regulating air path 571 and the first branch path 572 are connected in parallel.

[0191] The pressure regulating module 570 includes a first intermediate air passage 573, which is connected to the output end of the first branch 572 and the output end of the pressure regulating air passage 571. The output end of the first intermediate air passage 573 is connected to the input end of the door opening air passage 532 and the input end of the moving air passage 522, respectively.

[0192] In some embodiments, a first control valve 509a is provided in a first intermediate air passage 573 so that the first control valve 509a can control the opening and closing of the door opening air passage 532 and the moving air passage 522.

[0193] The pressure regulating module 570 includes a first pressure reducing valve 505a, which is located at the connection between the first main line 511, the first branch line 572, and the pressure regulating gas line 571, and is used to control the gas pressure input to the first branch line 572. The first pressure reducing valve 505a is connected to a controller; the controller controls the operation of the first pressure reducing valve 505a by controlling the amount of gas pressure allowed to pass through it.

[0194] The pressure regulating module 570 includes a throttle valve 506, which is located in the pressure regulating gas path 571. The throttle valve 506 controls and regulates the flow rate of gas in the pressure regulating gas path 571 by changing the size of the valve orifice or the flow area.

[0195] The pressure regulating module 570 includes a pressure regulating valve 507a, which is located in the pressure regulating gas passage 571 and is used to control the gas pressure of the gas entering the first intermediate gas passage 573 from the pressure regulating gas passage 571.

[0196] The pressure regulating principle of the pressure regulating module 570 is as follows: the controller is connected to the first pressure reducing valve 505a and the pressure regulating valve 507a respectively; the controller is configured to control the gas pressure allowed to pass through the first pressure reducing valve 505a to be a first pressure value, and control the gas pressure allowed to pass through the pressure regulating valve 507a to be a second pressure value; wherein, the sum of the first pressure value and the second pressure value is the output gas pressure of the door opening air passage 532 or the moving air passage 522.

[0197] By dividing the gas entering the door opening gas path 532 or the moving gas path 522 into two parts, one part passes through the first pressure reducing valve 505a and is input into the first branch 572 at a certain pressure value, and the other part enters the pressure regulating gas path 571 and passes through the pressure regulating valve 507a, so as to achieve precise control of gas pressure.

[0198] In some embodiments, the pressure regulating valve 507a is a first solenoid valve 5071 and a second solenoid valve 5072. The first solenoid valve 5071 and the second solenoid valve 5072 are respectively connected to the controller. The controller adjusts the output air pressure of the pressure regulating air circuit 571 by controlling the energization and de-energization of the first solenoid valve 5071 and the second solenoid valve 5072.

[0199] In this embodiment, when the door opening air passage 532 or the moving air passage 522 is pressurized, the first solenoid valve 5071 and the second solenoid valve 5072 are energized; when the door opening air passage 532 or the moving air passage 522 is pressurized, the first solenoid valve 5071 is de-energized and the second solenoid valve 5072 is energized; when the door opening air passage 532 or the moving air passage 522 is de-energized, the second solenoid valve 5072 and the second solenoid valve 5072 are de-energized.

[0200] The connection and disconnection of the second solenoid valve 5072 are controlled by energizing and de-energizing the first solenoid valve 5071, and the disconnection and connection of the second solenoid valve 5072 are controlled by energizing and de-energizing the second solenoid valve 5072.

[0201] Specifically, when the first solenoid valve 5071 is energized, it is connected; when the first solenoid valve 5071 is de-energized, it is disconnected. When the second solenoid valve 5072 is de-energized, it is connected; when the second solenoid valve 5072 is energized, it is disconnected.

[0202] The outlet of the second solenoid valve 5072 is connected to other devices or is open.

[0203] In this embodiment, the first solenoid valve 5071 and the second solenoid valve 5072 are two-position three-way solenoid valves.

[0204] The pressure regulating module 570 includes a first relay valve 508a, which is used to control the pressure of the gas output from the opening gas path 532 and the gas output from the moving gas path 522. The first relay valve 508a is located at the connection between the pressure regulating gas path 571, the first branch 572 and the intermediate pipeline.

[0205] The first relay valve 508a is connected to the controller. The controller controls the operation of the first relay valve 508a by controlling the amount of gas pressure that the first relay valve 508a is allowed to pass through, so that the gas pressure output by the opening air circuit 532 meets the requirements of the power assist component and the gas pressure output by the moving air circuit 522 meets the requirements of the cylinder.

[0206] In this application, such as Figure 7 and Figure 10 As shown, the speed of the gas output from the air supply path 553 and the speed of the gas output from the heat dissipation path 543 are adjusted by setting the speed control module 560 to ensure the reliability of the operation of the air supply path 553 and the heat dissipation path 543.

[0207] The speed control module 560 includes a second branch 562, the input of which is connected to the output of the second main branch 512.

[0208] The speed control module 560 includes a speed control air passage 561, which is connected to the output end of the second main passage 512; the speed control air passage 561 and the second branch passage 562 are connected in parallel.

[0209] The speed control module 560 includes a second intermediate air passage 563, which is connected to the output end of the second branch 562 and the output end of the speed control air passage 561. The output end of the second intermediate air passage 563 is connected to the input end of the supply air passage 553 and the input end of the cooling air passage 543, respectively. It should be noted that the second control valve 509b is located in the second intermediate pipeline.

[0210] The speed control module 560 includes a second pressure reducing valve 505b, which is located at the connection between the second main line 512, the second branch line 562, and the speed control gas line 561, and is used to control the gas pressure input to the second branch line 562. The second pressure reducing valve 505b is connected to a controller; the controller controls the operation of the second pressure reducing valve 505b by controlling the amount of gas pressure allowed to pass through it.

[0211] The speed control module 560 includes a speed control valve 507b, which is located in the speed control air passage 561 and is used to control the gas pressure of the gas entering the second intermediate air passage 563 from the speed control air passage 561.

[0212] The speed regulation principle of the speed regulation module 560 is similar to that of the voltage regulation principle of the voltage regulation module 570, and will not be described in detail here.

[0213] In some embodiments of this application, the speed regulating valve 507b is a third solenoid valve 5073 and a fourth solenoid valve 5074. The third solenoid valve 5073 and the fourth solenoid valve 5074 are respectively connected to the controller. The controller regulates the speed of the gas output from the speed regulating gas path 561 by controlling the energization and de-energization of the third solenoid valve 5073 and the fourth solenoid valve 5074.

[0214] The connection and disconnection of the third solenoid valve 5073 are controlled by energizing and de-energizing the third solenoid valve 5073, and the disconnection and connection of the fourth solenoid valve 5074 are controlled by energizing and de-energizing the fourth solenoid valve 5074.

[0215] The outlet of the fourth solenoid valve 5074 is connected to other devices or is open.

[0216] The third solenoid valve 5073 and the fourth solenoid valve 5074 are two-position three-way solenoid valves.

[0217] The airflow rate is controlled and regulated by the cooperation of the third solenoid valve 5073 and the fourth solenoid valve 5074.

[0218] The speed control module 560 includes a second relay valve 508b, which is located at the connection between the second branch 562, the speed control air passage 561, and the second intermediate air passage 563. The second relay valve 508b is used to control the gas pressure output by the supply air passage 553 and the gas pressure output by the heat dissipation air passage 543, thereby controlling the gas flow rate and thus the gas velocity.

[0219] The second relay valve 508b is connected to the controller, which can adjust the compressed air speed by controlling the gas pressure allowed to pass through the second relay valve 508b.

[0220] In this application, such as Figure 9 As shown, the air supply passage 553 and the heat dissipation passage 543 are connected by a first air passage 544. One end of the first air passage 544 is connected to the air supply passage 553, and the other end of the first air passage 544 is connected to the heat dissipation passage 543, so that the air supply passage 553 and the heat dissipation passage 543 are interconnected through the first air passage 544. The first air passage 544 is equipped with a third control valve 509c, which is used to control the opening and closing of the first air passage 544.

[0221] The controller is further configured to: when receiving an air supply command in the heat dissipation mode, or when receiving a heat dissipation command in the air supply mode, control the third control valve 509c to open the first air passage 544.

[0222] Through the cooperation of the second control valve 509b and the third control valve 509c, in this embodiment, the working modes of the air supply path 553 and the heat dissipation path 543 can be divided into four working states, and the control of airflow is accomplished by the third solenoid valve 5073 and the fourth solenoid valve 5074.

[0223] When the controller de-energizes the second control valve 509b, the third control valve 509c, the third solenoid valve 5073, and the fourth solenoid valve 5074, the power source 510 supplies air to the air supply path 553 so that the air flows into the drying chamber through the blower assembly to dry the clothes.

[0224] When the controller energizes the second control valve 509b, de-energizes the third control valve 509c, de-energizes the third solenoid valve 5073, and de-energizes the fourth solenoid valve 5074, the power source 510 sends air to the heat dissipation air passage 543 so that the air is blown toward the heat-generating load to dissipate heat from the heat-generating load.

[0225] When the controller controls the second control valve 509b to be de-energized or energized, the third control valve 509c to be energized, the third solenoid valve 5073 to be de-energized, and the fourth solenoid valve 5074 to be de-energized, the power source 510 supplies air to the air supply path 553 and the heat dissipation path 543, so that part of the air flows into the drying chamber to dry the clothes, and part of the air is blown towards the heat-generating load to dissipate heat from the heat-generating load.

[0226] When the controller controls the second control valve 509b to be de-energized or energized, the third control valve 509c to be de-energized or energized, the third solenoid valve 5073 to be energized, and the fourth solenoid valve 5074 to be energized, the power source 510 stops supplying air to the air supply path 553 and the heat dissipation path 543.

[0227] Since relay valves are prone to failure, this application performs fault diagnosis on the first relay valve 508a and the second relay valve 508b respectively to ensure the reliability of the pneumatic system 500.

[0228] The method for determining whether the first relay valve 508a is faulty is as follows:

[0229] The pressure regulating gas path 571 is equipped with a pressure regulating gas pressure sensor 574, which is used to detect the gas pressure in the pressure regulating gas path 571. The detected value of the pressure regulating gas pressure sensor 574 is recorded as A1.

[0230] The controller is connected to the pressure regulating sensor 574; the controller is configured to: when receiving a door opening command, if the absolute value of the difference between the detection values ​​of the pressure regulating sensor 574 and the first pressure sensor 531 exceeds a first range, then determine that the first relay valve 508a has malfunctioned; if the absolute value of the difference between the detection values ​​of the pressure regulating sensor 574 and the first pressure sensor 531 is within the first range, then determine that the first relay valve 508a has not malfunctioned.

[0231] The controller is configured to: when receiving a movement command, if the absolute value of the difference between the detection values ​​of the regulating pressure sensor 574 and the second pressure sensor 521 exceeds a second range, then determine that the first relay valve 508a has malfunctioned; if the absolute value of the difference between the detection values ​​of the regulating pressure sensor 574 and the second pressure sensor 521 is within the second range, then determine that the first relay valve 508a has not malfunctioned.

[0232] The method for determining whether the second relay valve 508b is faulty is as follows:

[0233] The speed regulating air passage 561 is equipped with a first wind speed sensor 564, which is used to detect the gas pressure in the speed regulating air passage 561.

[0234] The air supply path 553 is equipped with a second wind speed sensor 551, which is used to detect the gas pressure in the air supply path 553.

[0235] The heat dissipation air passage 543 is equipped with a third wind speed sensor 541, which is used to detect the gas pressure inside the heat dissipation air passage 543.

[0236] The controller is connected to the first wind speed sensor 564, the second wind speed sensor 551, and the third wind speed sensor 541 respectively. The controller is configured to: when receiving an air supply command, if the absolute value of the difference between the detection value of the first wind speed sensor 564 and the detection value of the second wind speed sensor 551 exceeds a first range, then determine that the second relay valve 508b has malfunctioned; if the absolute value of the difference between the detection value of the first wind speed sensor 564 and the detection value of the second wind speed sensor 551 is within the first range, then determine that the second relay valve 508b has not malfunctioned.

[0237] The controller is configured such that when a heat dissipation command is received, if the absolute value of the difference between the detection value of the first wind speed sensor 564 and the detection value of the third wind speed sensor 541 exceeds a second range, the second relay valve 508b is determined to be faulty; if the absolute value of the difference between the detection value of the first wind speed sensor 564 and the detection value of the third wind speed sensor 541 is within the second range, the second relay valve 508b is determined not to be faulty.

[0238] like Figure 11 As shown, the controller includes a main control chip, which interacts with the Wii module chip via URT serial communication to achieve bidirectional communication between the mobile phone and the microcontroller. The I / O ports enable the main control chip's I / O outputs, thereby controlling the opening and closing of the first solenoid valve 5071, the second solenoid valve 5072, the third solenoid valve 5073, the fourth solenoid valve 5074, the first control valve 509a, the second control valve 509b, and the third control valve 509c. It also communicates with a sensor chip via URT communication, which collects various sensor data. A timer interrupt is responsible for controlling the first solenoid valve 5071, the second solenoid valve 5072, the third solenoid valve 5073, the fourth solenoid valve 5074, the first control valve 509a, the second control valve 509b, and the third control valve 509c every millisecond using a specified control algorithm.

[0239] The main control chip controls the operation of each valve according to the control signal, thereby enabling the auxiliary component to apply a pushing force to the door 200, the cylinder to drive the roller 400 to contact the ground, blow air to the heat load, and deliver air to the air supply component.

[0240] In some embodiments of this application, control signals are transmitted using "1" or "0". Upon receiving an opening command, the "Door Opening Required" flag is set to 1; when the opening action is completed or an "Door Opening Not Required" command is received, the "Door Opening Required" flag is set to 0. Upon receiving a command to move the dryer, the "Movement Mode Action Phase Trigger" flag is set to 1; when the dryer has moved completely or a "Movement Not Required" command is received, the "Movement Mode Action Phase Trigger" flag is set to 0 or the "Cancel Movement Mode Phase" flag is set to 0. Upon receiving a cooling command, the "Cooling Air Required" flag is set to 1; when cooling is completed or a "Cooling Air Not Required" command is received, the "Cooling Air Required" flag is set to 0. Upon receiving a ventilation command, the "Circulating Air Required" flag is set to 1; when ventilation is completed or a "Ventilation Not Required" command is received, the "Circulating Air Required" flag is set to 0.

[0241] It should be noted that the heat dissipation mode and the air supply mode can be turned on at the same time, while the movement mode and the door opening mode can only be turned on one of them.

[0242] like Figure 12 As shown, when the dryer is working, it first checks whether the trigger flag for the movement mode action stage is 0 to determine whether the movement mode needs to be executed. If the trigger flag for the movement mode action stage is 0, the movement mode does not need to be executed. If the trigger flag for the movement mode action stage is not 0, it further checks whether the trigger flag for the movement mode action stage is 1 to further determine whether the movement mode does not need to be executed.

[0243] When the movement mode action phase trigger flag is 0, if the door opening flag is 1, the door opening mode is executed first, and then the door opening flag is checked to see if it is 0 to determine if the door opening mode has been completed. If the door opening flag is not 1, the door opening flag is checked directly to see if it is 0. If the door opening flag is 0, the movement mode action phase trigger flag is checked to see if it is 1 to determine if the movement mode needs to be executed. If the door opening flag is not 0, the circulating air activation flag is checked to see if it is 1 and the cooling air activation flag is checked to see if it is 0.

[0244] When the trigger flag for the movement mode action phase is not 0, if the trigger flag for the movement mode action phase is 1, the movement mode is activated first, and then the trigger flag for the movement mode action phase is checked to determine whether the movement mode has been completed. If the trigger flag for the movement mode action phase is not 1, the trigger flag for the need to activate the circulating air is checked to determine whether the trigger flag for the need to activate the cooling ...

[0245] When the movement mode is activated, if the movement mode action phase trigger flag is 0, the movement mode is completed. Then, it is further determined whether the circulating air activation flag is 1 and the cooling air activation flag is 0. If the movement mode action phase trigger flag is not 0, the movement mode continues to be executed.

[0246] If the function determines whether the required air circulation activation flag is 1 and the required cooling air activation flag is 0, then it enters the air supply mode. If not, it further determines whether the required air circulation activation flag is 0 and the required cooling air activation flag is 1. If so, it enters the cooling mode. If not, it further determines whether the required air circulation activation flag is 1 and the required cooling air activation flag is 1. If so, it simultaneously activates the cooling mode and the air supply mode. If not, it simultaneously deactivates the cooling mode and the air supply mode.

[0247] The control logic of the dryer will be explained in detail below.

[0248] like Figure 13 As shown, when the dryer is working, it first determines whether the trigger flag for the movement mode action stage is 0. If it is, it means that the movement mode does not need to be executed. Then it further determines whether the interaction force F0 between the cabinet 100 and the door 200 is 0 to determine whether the door opening mode needs to be executed. If not, it further determines whether the trigger flag for the movement mode action stage is 1 to determine whether the movement mode needs to be executed.

[0249] When the trigger flag for the movement mode action phase is 0, if the interaction force F0 between the box 100 and the door 200 is 0, it means that the door 200 is not subjected to external tension. The door status flag is recorded as 0. If the door opening flag sent by the APP is also 0 at this time, it means that the user has not entered the door opening command through the APP. The door opening flag is recorded as 0, indicating that the door opening mode does not need to be executed at this time. Then, it is further determined whether the door opening flag is 1 to determine whether to execute the door opening mode. If the interaction force F0 between the cabinet 100 and the door 200 is not zero, it indicates that the door 200 is under external tension. The door status flag is recorded as 1, indicating that the opening mode may need to be executed. At this point, it is necessary to further determine the magnitude of the interaction force F0 and the first set value F_fixed. If the interaction force F0 is greater than the first set value F_fixed, it indicates that the tension on the door 200 is relatively large, and the user intends to open the door 200. The opening flag is recorded as 1. If the interaction force F0 is less than or equal to the first set value F_fixed, it indicates that the tension on the door 200 is relatively small, and it is determined that the user does not intend to open the door 200. At this point, it is further determined whether the opening flag sent by the APP is 0. If yes, it indicates that the user has not input an opening command through the APP, and the opening flag is recorded as 0, indicating that the opening mode does not need to be executed. If no, it indicates that the user has input an opening command through the APP, and the opening flag is recorded as 1, and it is determined that the door needs to be opened. If the flag is 1, the system enters the door opening mode, energizes the B side of the first control valve 509a, and checks whether the first relay valve 508a is faulty. If the detection value A1 of the pressure regulating sensor 574 is equal to the detection value A2 of the first pressure sensor 531, the relay valve fault flag is recorded as 0, indicating that the first relay valve 508a is not faulty. The system then controls the door opening air path according to the first control algorithm, performing pressurization, pressure holding, and pressure reduction operations to complete the door opening mode. If the detection value A1 of the pressure regulating sensor 574 is not equal to the detection value A2 of the first pressure sensor 531, the relay valve fault flag is recorded as 1, indicating that the first relay valve 508a is faulty. The first control valve, the first solenoid valve, and the second solenoid valve are de-energized, the door opening air path is de-energized, and then the system checks whether the door opening flag is 0 to determine whether the door opening mode has been completed. If not, the system directly checks whether the door opening flag is 0.

[0250] If the door opening flag is 0, then it is further determined whether the movement mode action phase trigger flag is 1; if the door opening flag is not 0, then it is further determined whether the circulating air opening flag is 1 and the cooling air opening flag is 0.

[0251] When the movement mode action phase trigger flag is 1, the movement mode is entered. It is then determined whether the movement mode cancellation phase flag is 0. If it is, it is determined whether the pressure in the movement air circuit meets the target pressure F3. If not, the first control valve A side is energized, and it is determined whether the detection value A1 of the pressure regulating air sensor 574 is the same as the detection value A3 of the second air pressure sensor 521.

[0252] When the pressure in the moving air circuit meets the target pressure F3, the first control valve A is energized, and it is determined whether the detection value A1 of the pressure regulating air pressure sensor 574 is the same as the detection value A3 of the second air pressure sensor 521.

[0253] When the pressure in the moving air circuit does not meet the target pressure F3, the first control valve, the first solenoid valve, and the second solenoid valve are de-energized, the door opening air circuit is de-pressurized, and then the determination is made as to whether the required circulating air opening flag is 1 and the required cooling air opening flag is 0.

[0254] When the detection value A1 of the pressure regulating air pressure sensor 574 is the same as the detection value A3 of the second air pressure sensor 521, the relay valve fault flag is 0, and it is determined that the first relay valve 508a has not malfunctioned. Control is performed according to the first control algorithm to make the door opening air circuit perform operations such as pressurization, pressure holding, and pressure reduction, so that the movement mode action stage trigger flag is 0, and the first control valve is de-energized to complete the movement mode. Then, it is determined whether the required circulating air opening flag is 1 and the required cooling air opening flag is 0.

[0255] When the detection value A1 of the pressure regulating air pressure sensor 574 is different from the detection value A3 of the second air pressure sensor 521, the relay valve fault flag is recorded as 1, and it is determined that the first relay valve 508a has failed. The first control valve loses power, the first solenoid valve loses power, the second solenoid valve loses power, the door opening air circuit is depressurized, and then the judgment is made on whether the required circulating air opening flag is 1 and the required cooling air opening flag is 0.

[0256] If the indicator for requiring recirculation air to be turned on is 1 and the indicator for requiring cooling air to be turned on is 0, then if both are true, the second and third control valves are de-energized. If not, the system further checks if both indicators are true. If both indicators are true, the second control valve is energized and the third control valve is de-energized. If not, the system further checks if both indicators are true. If both indicators are true, the third control valve is energized. If not, the fan speed is controlled using the second control algorithm.

[0257] The aforementioned dryer is equipped with a cylinder and rollers 400. The air is driven to push the cylinder to push out the rollers 400, which makes it easy to move the dryer using the rollers 400, making the dryer easy to move.

[0258] The aforementioned dryer uses compressed air to drive an assistive component to apply a pushing force to the door 200, thereby assisting the user in opening the door 200.

[0259] The aforementioned dryer transmits compressed air to the heat-generating load through the heat dissipation air passage 543, so that the compressed air is blown toward the heat-generating load to improve the heat dissipation effect of the compressor, motor and other heat-generating loads.

[0260] The aforementioned dryer delivers compressed air to the blower assembly via the air supply path 553, allowing the compressed air to flow into the drying chamber to ensure sufficient air volume within the drying chamber, thereby increasing the drying effect of the dryer.

[0261] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0262] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A clothes dryer, characterized in that, include: A housing, the interior of which is defined to form a receiving space; The container has a dispensing opening, which is located on the front side of the container and communicates with the receiving space. A simplified, rotatable structure is disposed within the accommodating space, and a drying chamber for drying clothes is formed inside the simplified structure. A door, which is connected to the box body; the door is located at the delivery port in an openable and closable manner. An assistive component configured to reduce the pulling force required to open the door; Rollers, which are located in the receiving part at the bottom of the box; A cylinder is mounted on the housing; the cylinder is configured to drive the roller to extend out of the receiving portion and contact the ground, or to retract the roller back into the receiving portion; A pneumatic system, comprising: Power source, used to provide compressed air; The door opening air passage is configured to deliver compressed air supplied by the power source to the contact point with the assist component; A mobile air passage configured to deliver compressed air supplied by the power source to the cylinder; The first control valve is used to control the opening and closing of the door opening air passage and the moving air passage. A controller, which is connected to the first control valve; the controller is configured to: Upon receiving a command to open the door, the first control valve is controlled to connect the door opening air path and cut off the moving air path, thus entering the door opening mode. Upon receiving a command to move the clothes dryer, the system controls the first control valve to connect the moving air path and cut off the door opening air path, thus entering the moving mode.

2. The clothes dryer according to claim 1, characterized in that, The dryer includes a pressure sensor for detecting the interaction force between the door and the housing; the pressure sensor is connected to the controller. The controller is configured to: after entering the door opening mode, if the detection value of the pressure sensor is 0, control the first control valve to cut off the door opening air path and exit the door opening mode.

3. The clothes dryer according to claim 2, characterized in that, The controller is further configured to: when the detection value of the pressure sensor is greater than a first set value, control the first control valve to connect the door opening air path and cut off the moving air path, and enter the door opening mode.

4. The clothes dryer according to claim 1, characterized in that, The controller is further configured to: when receiving a mobile dryer instruction in the door-opening mode, exit the door-opening mode and then re-enter the mobile mode; When the movement mode receives a command to open the door, it will then enter the door opening mode again after receiving a command to exit the movement mode.

5. The clothes dryer according to claim 1, characterized in that, The pneumatic system includes a first relay valve, which is located at the input end of the door opening air path or the input end of the moving air path; the first relay valve is used to control the air pressure input to the door opening air path or the moving air path; the first relay valve is connected to the controller; The controller is configured to: determine whether the first relay valve has malfunctioned when entering the door opening mode or the moving mode; and control the door opening air path or the moving air path to reduce pressure when the first relay valve has malfunctioned.

6. The clothes dryer according to claim 5, characterized in that, The pneumatic system also includes: The first main road connects to the power source; The first branch is connected to the output end of the first main branch; A pressure regulating air circuit is connected to the output end of the first main circuit; the pressure regulating air circuit and the first branch circuit are connected in parallel; the pressure regulating air circuit is equipped with a pressure regulating air pressure sensor, and the pressure regulating air pressure sensor is connected to the controller. An intermediate air passage is connected to the output end of the first branch and the output end of the pressure regulating air passage. The output end of the intermediate air passage is connected to the door opening air passage and the movable air passage component. The first relay valve is located at the connection between the first branch, the pressure regulating gas line, and the intermediate gas line; The controller is configured to determine that the first relay valve has malfunctioned when the absolute value of the difference between the detected value of the pressure regulating sensor and the detected value of the working pressure sensor exceeds a first range.

7. The clothes dryer according to claim 1, characterized in that, The dryer includes a blower assembly located on the outside of the body; the cylinder wall of the body is provided with ventilation holes communicating with the drying chamber, and the blower assembly is configured to deliver hot air to the drying chamber through the ventilation holes; The pneumatic system also includes: An air supply path is configured to supply air to the blowing assembly; the air supply path is connected to the power source. The second control valve is used to control the opening and closing of the air supply path; the second control valve is connected to the controller. The controller is configured to: upon receiving an air supply command, control the second control valve to open the air supply path and enter the air supply mode; Upon receiving a stop air supply command, the second control is activated to cut off the air supply path and exit the air supply mode.

8. The clothes dryer according to claim 7, characterized in that, The dryer includes a heating load located outside the main body; the heating load generates heat during the operation of the dryer. The pneumatic system further includes a heat dissipation air passage configured to blow air to the heat-generating load; the heat dissipation air passage is connected in parallel with the air supply air passage; the second control valve is also used to control the on / off state of the heat dissipation air passage. The controller is further configured to: upon receiving a heat dissipation command, control the second control valve to open the heat dissipation air passage and enter the heat dissipation mode; Upon receiving a stop cooling command, the second control valve is controlled to cut off the cooling air path and exit the cooling mode.

9. The clothes dryer according to claim 8, characterized in that, The air supply path and the heat dissipation path are connected to a first air path. One end of the first air path is connected to the air supply path, and the other end of the first air path is connected to the heat dissipation path. The first air path is equipped with a third control valve, which is used to control the opening and closing of the first air path. The first air path is connected to the controller. The controller is further configured to: when receiving an air supply command in the heat dissipation mode, or when receiving a heat dissipation command in the air supply mode, control the third control valve to open the first air passage.

10. A clothes dryer, characterized in that, include: A housing, the interior of which is defined to form a receiving space; The container has a dispensing opening, which is located on the front side of the container and communicates with the receiving space. A simplified, rotatable structure is disposed within the accommodating space, and a drying chamber for drying clothes is formed inside the simplified structure. A door, which is connected to the box body; the door is located at the delivery port in an openable and closable manner. Rollers, which are located in the receiving part at the bottom of the box; A cylinder is mounted on the housing; the cylinder is configured to drive the roller to extend out of the receiving portion and contact the ground, or to retract the roller back into the receiving portion; A pneumatic system, comprising: Power source, used to provide compressed air; The door opening air passage is configured to apply a thrust to the door body using compressed air supplied by the power source. A movable air circuit has a roller connected to its output end; the movable air circuit is configured to deliver compressed air supplied by the power source to the cylinder. The first control valve is used to control the opening and closing of the door opening air passage and the moving air passage. A pressure sensor is used to detect the interaction force between the door and the housing; A controller connected to the pressure sensor; the controller is configured to: when the detected value of the pressure sensor is greater than a first set value, control the first control valve to connect the door opening air path and cut off the moving air path, and enter the door opening mode; After entering the door opening mode, when the pressure sensor detects a value of 0, the first control valve is controlled to cut off the door opening air path and exit the door opening mode.

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