Cabinet type gas clothes dryer convenient to use

Abstract

The utility model relates to a cabinet type fuel gas clothes dryer convenient to use, which comprises a cabinet body, a clothes cavity is arranged in the cabinet body, a door leaf is arranged on one side of the cabinet body, a heating installation cavity is arranged below the clothes cavity in the cabinet body, a fuel gas access pipe, a burner assembly and a hot gas channel are arranged in the heating installation cavity, and heat flow inlets are respectively arranged on the left side and the right side of the lower portion of the clothes cavity. An exhaust fan is arranged at the top of the clothes cavity, a motor is arranged on the exhaust fan, an exhaust channel is formed in the cabinet body, a fuel gas proportional valve and a control panel are arranged in the heating mounting cavity, a first temperature sensor is arranged in the clothes cavity, and a humidity sensor capable of sending a control signal to the control panel is arranged in the exhaust channel; the control panel controls the rotation speed of the motor to be switched among multiple gears according to measurement numerical values of the first temperature sensor and the humidity sensor. The clothes dryer is simple in structure, clothes are dried through gas, the speed is high, the motor is intelligently controlled, and use is convenient.

Description

[Technical Field]

[0001] This utility model relates to a gas-fired clothes dryer. [Background Technology]

[0002] A clothes dryer is an appliance used to quickly dry clothes in cold or humid weather. Most clothes dryers on the market are currently electric, which uses electricity to heat the clothes. Due to heating methods and safety considerations, the power output is often limited, resulting in slow heating. Later, some gas-fired clothes dryers appeared, but these were all drum-type, such as the one with patent number 201721096642.1, titled "A Gas-Fired Clothes Dryer." These drum-type gas dryers use belt pulleys to drive the drum, resulting in a complex structure, high production costs, and their temperature and humidity sensors are only used for fixed heat output and fan speed, lacking intelligent control for cooling and dehumidification. The market urgently needs a cabinet-type gas-fired clothes dryer capable of rapid drying to fill this gap. This utility model was developed to solve the aforementioned problems. [Utility Model Content]

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a cabinet-type gas dryer that is simple in structure, low in production cost, capable of intelligent dehumidification control, and easy to use.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A user-friendly cabinet-type gas dryer includes a cabinet body. The cabinet body has a clothes cavity with an opening on one side for hanging clothes. A door on one side of the cabinet body covers the opening of the clothes cavity. Below the clothes cavity, the cabinet body has a heating installation cavity. The heating installation cavity contains a gas inlet pipe, a burner assembly for receiving gas from the gas inlet pipe, and a hot air channel communicating with the clothes cavity and guiding the heat generated by the burner assembly into the clothes cavity. The lower part of the clothes cavity has a hot air inlet for the hot air from the hot air channel to enter the clothes cavity. The ends of the hot air channel extend to the left and right outer walls of the clothes cavity and connect with the hot air inlet. The garment cavity is connected to the air vent. An exhaust fan is installed at the top of the garment cavity to extract air from it. The exhaust fan has a motor. An exhaust duct is provided on the cabinet to discharge the air extracted by the exhaust fan. The heating installation cavity contains a gas proportional valve that controls the operation of the burner assembly and a control board that controls the operation of the gas proportional valve and the exhaust fan. A first temperature sensor is installed in the garment cavity to provide control signals to the control board. A humidity sensor is installed in the exhaust duct to provide control signals to the control board. The control board controls the motor speed to switch between multiple gears based on the measurements from the first temperature sensor and the humidity sensor.

[0006] The easy-to-use cabinet-type gas dryer described above is characterized by the following: when the humidity sensor detects a humidity greater than 60% or the first temperature sensor detects a temperature of 70℃-80℃, the motor speed is 1800-2000 rpm; when the humidity sensor detects a humidity of 40% to 60% or the first temperature sensor detects a temperature of 55℃-70℃, the motor speed is 1200-1500 rpm; when the humidity sensor detects a humidity of 30% to 40% or the first temperature sensor detects a temperature of 35℃-55℃, the motor speed is 1000-1200 rpm; when the humidity sensor detects a humidity of 20% to 30% or the first temperature sensor detects a temperature of 20℃-35℃, the motor speed is 800-1000 rpm; when the humidity sensor detects a humidity less than 20%, the gas proportional valve stops working; when the first temperature sensor detects a temperature less than 20℃, the motor stops working.

[0007] As described above, an easy-to-use cabinet-type gas dryer is characterized in that: the heat inlet includes multiple holes, and the exhaust fan is located in the middle of the top of the clothes chamber.

[0008] As described above, a user-friendly cabinet-type gas dryer is characterized in that: the hot air channel includes horizontal sections extending to the left and right sides of the cabinet, and vertical sections extending vertically at both ends of the horizontal sections, the vertical sections being connected to the hot air inlet; the horizontal and vertical sections forming a channel separated from the heating installation cavity; a burner housing is provided inside the heating installation cavity; the burner housing is connected to the horizontal sections through a communication port; and the burner assembly is located inside the burner housing.

[0009] As described above, a user-friendly cabinet-type gas dryer is characterized in that: the burner housing is provided with a cold air inlet mesh above the burner assembly and near the communication port, allowing cold air from the heating installation cavity to enter and mix with the hot air inside the burner housing.

[0010] The cabinet-type gas dryer described above is characterized in that the area ratio of the cold air inlet mesh to the hot air inlet is 0.4-0.5.

[0011] As described above, a user-friendly cabinet-type gas dryer is characterized in that: the top of the clothing cavity is provided with a hanging rack for hanging clothes, and the lower part of the clothing cavity, above the heat inlet, is provided with a storage rack for placing clothes.

[0012] As described above, a user-friendly cabinet-type gas dryer is characterized in that: a second temperature sensor is provided on the heat inlet for detecting the temperature at the heat inlet; the second temperature sensor sends the detected temperature signal to the control board for controlling the output pressure of the gas proportional valve; when the temperature of the second temperature sensor is greater than 90°C, the control board controls the gas proportional valve to close.

[0013] The cabinet-type gas dryer described above is characterized in that: the cabinet is equipped with a touch switch that sends a signal to the control board when the door is opened, thereby controlling the gas proportional valve to close.

[0014] As described above, a user-friendly cabinet-type gas dryer is characterized in that: the bottom of the cabinet is provided with an air inlet mesh for air to enter the heating installation cavity; the middle and lower parts of the left and right side walls of the burner shell are respectively provided with secondary air replenishment mesh for air from the heating installation cavity to replenish the burner shell; and the burner assembly consists of multiple burner rows.

[0015] The beneficial effects of this invention are as follows: The combustion of gas in the burner assembly generates heat, which is guided into the clothing cavity through the hot air channel. A ventilation fan at the top of the clothing cavity exhausts the hot and humid air. The hot air inlets are located on the left and right sides of the clothing cavity, and the ventilation fan draws air from the top of the clothing cavity. This allows the hot air to exit horizontally and then convect vertically, facilitating convection and ensuring a uniform temperature within the clothing cavity. The speed of the ventilation fan is controlled by a first temperature sensor and a humidity sensor. When the sensing values ​​of the first temperature sensor and humidity sensor are within a certain range, the speed of the ventilation fan rotates within a specific range, achieving automatic multi-speed switching. The higher the humidity and temperature, the faster the ventilation fan speeds. This design enables intelligent control of dehumidification and temperature, preventing excessive heat and allowing for rapid drying of clothes. It features a simple structure, ease of use, and low production costs, filling a market gap for cabinet-style gas dryers. The hot air channel consists of horizontal and vertical sections, with the hot air inlets located at the bottom of the left and right side walls of the clothing chamber. This extends the hot air channel, preventing excessively high gas combustion temperatures and ensuring even heat distribution. Cold air inlets are located on the burner casing, allowing cold air to be mixed in and reducing the hot air temperature, preventing overheating. By controlling the area of ​​the cold air inlets and the area of ​​the hot air inlets, the air distribution ratio is controlled, thus regulating the hot air temperature and preventing excessive heat. [Attached Image Description]

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention:

[0018] Figure 3This is a perspective view of the burner assembly and hot gas passage of this utility model;

[0019] Figure 4 This is an exploded view of the burner assembly and hot gas passage of this utility model;

[0020] Figure 5 This is an exploded view of a component of this utility model;

[0021] Figure 6 This is the circuit control schematic diagram of this utility model.

Detailed Implementation Methods

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] like Figures 1 to 5 Therefore, a user-friendly cabinet-type gas dryer includes a cabinet body 1. The cabinet body 1 has a clothing cavity 2 with an opening on one side for hanging clothes. A door 3 on one side of the cabinet body 1 covers the opening of the clothing cavity 2. A heating installation cavity 4 is located below the clothing cavity 2 within the cabinet body 1, separated from the clothing cavity 2. A partition separates the heating installation cavity 4 from the clothing cavity 2 at its bottom wall. The heating installation cavity 4 contains a gas inlet pipe 10, a burner assembly 5 that can receive gas from the gas inlet pipe 10, and a hot air channel 6 that connects to the clothing cavity 2 and guides the heat generated by the burner assembly 5 to the clothing cavity 2. The hot air channel 6 is an independent channel with one end connected to the clothing cavity 2. The lower left and right sides of the clothing cavity 2 are respectively provided with heating air channels 6 for hot air to enter the clothing cavity 2 and heat flow inlets 21. The heat flow inlets 21 can be composed of multiple holes, such as mesh. The top of the clothing cavity 2 is provided with an exhaust fan 7 that can extract the air from the clothing cavity 2. The cabinet 1 is provided with an exhaust channel 11 that can exhaust the air extracted by the exhaust fan 7. The heat flow inlets 21 are located at the bottom and the exhaust fan 7 is located at the top. When the exhaust fan 7 is turned on, the hot air flows from the bottom to the top, allowing the heat to fill the clothing cavity 2 and making the heat even. The exhaust fan 7 is equipped with a motor 71, which is a variable frequency motor. The heating installation cavity 4 is equipped with a gas proportional valve 41 that controls the operation of the burner assembly 5 and a control board 8 that controls the operation of the gas proportional valve 41 and the exhaust fan 7. The clothing cavity 2 is equipped with a first temperature sensor 22 that can provide control signals to the control board 8. The exhaust channel 11 is equipped with a humidity sensor 23 that can provide control signals to the control board 8. The control board 8 controls the speed of the motor 71 to switch between multiple gears based on the measured values ​​of the first temperature sensor 22 and the humidity sensor 23. Multiple gears refer to multiple speed ranges of the motor 71. For example, the first gear is a speed of 1800-2000 rpm, the second gear is a speed of 1200-1500 rpm, and the third gear is a speed of 1000-1200 rpm. Of course, this is only the preferred embodiment, and other speed values ​​are also possible.

[0024] For ease of control and to ensure rapid drying of clothes, the optimal control scheme is as follows: when the humidity sensor 23 detects a humidity level greater than 60% or the first temperature sensor 22 detects a temperature of 70℃-80℃, the motor 71 rotates at 1800-2000 rpm, which can be set to the first setting; when the humidity reaches 60% or the temperature reaches 70℃, it jumps to the next setting. When the humidity sensor 23 detects a humidity level between 40% and 60% or the first temperature sensor 22 detects a temperature of 55-70℃, the motor 71 rotates at 1200-1500 rpm, which can be defined as the second setting. When the humidity sensor 23 detects a humidity level between 20% and 30%, and the first temperature sensor 22 detects a temperature of 55-70℃, the motor 71 rotates at 1200-1500 rpm, which can be defined as the second setting. When the temperature sensor 22 detects a temperature of 35-55℃, the motor 71 rotates at 1000-1200 rpm, which can be defined as the third gear. When the humidity sensor 23 detects a humidity of 20% to 30% or the first temperature sensor 22 detects a temperature of 20℃-35℃, the motor 71 rotates at 800-1000 rpm, which can be defined as the fourth gear, or a low gear. When the humidity sensor 23 detects a humidity of less than 20%, the gas proportional valve 41 stops working, the burner assembly 5 stops working, and the flame is extinguished. When the first temperature sensor 22 detects a temperature of less than 20℃, the motor 71 stops working, and the clothes drying is complete. To prevent the burner assembly 5 from overheating during ignition, the motor 71 starts first, for example, ten seconds after the motor 71 starts, the igniter of the burner assembly 5 begins to ignite.

[0025] To facilitate control and prevent overheating, a second temperature sensor 26 is installed on the heat inlet 21 to detect the temperature at the heat inlet 21. The second temperature sensor 26 is installed on both the left and right heat inlets 21. The second temperature sensor 26 sends the detected temperature signal to the control board 8 to control the output pressure of the gas proportional valve 41, controlling the gas supply according to actual needs to meet different workloads. At startup, the second temperature sensor 26 is approximately the same as the room temperature, for example, 22°C. At this time, the gas supply and output pressure of the gas proportional valve 41 are at their maximum. As the temperature gradually increases, the gas proportional valve 41 reduces the gas output and lowers the gas output pressure to adapt to different workloads. For example, when the second temperature sensor 26 senses a temperature of 80°C-85°C, the gas proportional valve 41 begins to control the output pressure to decrease, reducing the gas flow. When the humidity is still high, for example, when the humidity sensor 23 detects a humidity of 40% to 60%, and the temperature of the second temperature sensor 26 is below 60°C, the control board 8 controls the output pressure of the gas proportional valve 41 to increase the gas supply and increase the heat output. When the temperature of the second temperature sensor 26 exceeds 90°C, the control board 8 controls the gas proportional valve 41 to close, extinguishing the flame and preventing clothing from catching fire.

[0026] To prevent burns and ensure that the burner assembly 5 does not work when the door 3 is opened, the cabinet 1 is equipped with a touch switch 12 that sends a signal to the control board 8 to control the gas proportional valve 41 to close when the door 3 is opened. When the door 3 is opened, the touch switch 12 pops up and disconnects, and the control board 8 receives the electrical signal and controls the gas proportional valve 41 to close.

[0027] To ensure even heat distribution, the heat inlet 21 is a mesh located at the bottom of the left and right side walls of the clothing cavity 2. The ends of the hot air channel 6 extend to the outer walls of the left and right sides of the clothing cavity 2 and communicate with the mesh. The exhaust fan 7 is located in the middle of the top of the clothing cavity 2. Heat enters from the left and right sides, and suction is generated in the middle of the top of the clothing cavity 2, causing the heat to flow upward from the left and right sides to the middle, allowing the heat to be evenly distributed. The hot air channel 6 includes a horizontal section 61 extending to the left and right sides of the cabinet 1. The two ends of the horizontal section 61 are provided with vertically extending sections 62. The upper ends of the vertical sections 62 communicate with the mesh. The horizontal section 61 and the vertical section 62 form a channel separated from the heating installation cavity 4. The hot air channel 6 is a closed channel. The horizontal section 61 and the vertical section 62 can extend the hot air channel 6 to prevent the heat temperature of the gas combustion from being too high and to ensure even heat distribution. A burner housing 51 is installed inside the heating installation cavity 4. The burner housing 51 is connected to the horizontal section 61 through a connecting port 50. The burner assembly 5 is installed inside the burner housing 51, and the connecting port 50 is located at the upper end of the burner housing 51. Near the connecting port 50, the burner housing 51 has a cold air inlet mesh 52 for cold air from the heating installation cavity 4 to enter and mix with the hot air inside the burner housing 51. The cold air inlet mesh 52 is located at the upper end of the left and right side walls of the burner housing 51. In order to control the cold air ratio, the area of ​​the cold air inlet mesh 52 is 0.4-0.5 times the area of ​​the hot air inlet 21. This can effectively control the temperature at the hot air inlet 21 from being too high, and at the same time, it can also supplement a certain amount of air. The area of ​​the cold air inlet mesh 52 is 4500 square millimeters, and the area of ​​the hot air inlet 21 is 9900 square millimeters. The bottom of the cabinet 1 is provided with an air inlet mesh 13 for supplying secondary air into the heating installation cavity 4. For complete combustion, the ratio of cold air inlet mesh 52 to air inlet mesh 13 is 0.3-0.35, and the area of ​​air inlet mesh 13 is 14,500 square millimeters. The middle and lower parts of the left and right side walls of the burner housing 51 are respectively provided with secondary air supply mesh 53 for supplying air from the heating installation cavity 4 into the burner housing 51. The burner assembly 5 consists of multiple burners arranged side-by-side, and is controlled by a gas proportional valve.

[0028] For convenience, clothes are hung. The top of the clothes cavity 2 is provided with a hanging rack 24 for hanging clothes. The top of the clothes cavity 2 at the left and right ends of the hanging rack 24 and the lower part of the clothes cavity 2 above the hot flow inlet 21 are provided with a storage rack 25 for placing clothes. Some clothes can be hung or folded on the storage rack 25.

[0029] To facilitate the installation of the exhaust fan 7, the exhaust fan 7 includes a mesh cover 70 integrally formed with the top wall of the clothing cavity 2 and located in the middle of the top wall of the clothing cavity 2. A fan cover 72 is provided above the mesh cover 70. The motor 71 is located on the fan cover 72. A fan blade 74 is provided on the motor shaft of the motor 71 and between the mesh cover 71 and the fan cover 72. The fan blade 74 draws the airflow in the clothing cavity 2 out and discharges it through the exhaust channel 11. The motor 71 is a variable frequency motor, and the speed of the motor 71 can be controlled by sensing the temperature and humidity in the clothing cavity 2.

Claims

1. A user-friendly cabinet-type gas-fired clothes dryer, characterized in that: The system includes a cabinet (1), which has a clothing cavity (2) with an opening on one side for hanging clothes. The cabinet (1) also has a door (3) on one side that covers the opening of the clothing cavity (2). A heating installation cavity (4) is located below the clothing cavity (2) within the cabinet (1). The heating installation cavity (4) contains a gas inlet pipe (10), a burner assembly (5) that can receive gas from the gas inlet pipe (10), and a hot air channel (6) that connects to the clothing cavity (2) and guides the heat generated by the burner assembly (5) into the clothing cavity (2). The lower left and right sides of the clothing cavity (2) are respectively provided with hot air inlets (21) for the hot air from the hot air channel (6) to enter the clothing cavity (2). The ends of the hot air channel (6) extend towards the left and right outer walls of the clothing cavity (2) and connect with the hot air inlets (21). The top of the clothing cavity (2) is provided with an exhaust fan (7) that can extract air from the clothing cavity (2). The exhaust fan (7) is provided with a motor (71). The cabinet (1) is provided with an exhaust channel (11) that can exhaust the air extracted by the exhaust fan (7). The heating installation cavity (4) is provided with a gas proportional valve (41) that controls the operation of the burner assembly (5) and a control board (8) that controls the operation of the gas proportional valve (41) and the exhaust fan (7). The clothing cavity (2) is provided with a first temperature sensor (22) that can give control signals to the control board (8). The exhaust channel (11) is provided with a humidity sensor (23) that can give control signals to the control board (8). The control board (8) controls the speed of the motor (71) to switch between multiple gears according to the measured values ​​of the first temperature sensor (22) and the humidity sensor (23).

2. The easy-to-use cabinet-type gas dryer according to claim 1, characterized in that: When the humidity sensor (23) detects a humidity greater than 60% or the temperature sensor (22) detects a temperature of 70℃-80℃, the speed of the motor (71) is 1800-2000 rpm; when the humidity sensor (23) detects a humidity of 40% to 60% or the temperature sensor (22) detects a temperature of 55℃-70℃, the speed of the motor (71) is 1200-1500 rpm; when the humidity sensor (23) detects a humidity of 30% to 40% or the temperature sensor (22) detects a temperature of 55℃-70℃, the speed of the motor (71) is 1200-1500 rpm; When the detected temperature is 35℃-55℃, the speed of the motor (71) is 1000-1200 rpm; when the humidity sensor (23) detects a humidity of 20% to 30% or the first temperature sensor (22) detects a temperature of 20℃-35℃, the speed of the motor (71) is 800-1000 rpm; when the humidity sensor (23) detects a humidity of less than 20%, the gas proportional valve (41) stops working, and when the first temperature sensor (22) detects a temperature of less than 20℃, the motor (71) stops working.

3. A user-friendly cabinet-type gas dryer according to claim 1, characterized in that: The heat inlet (21) includes multiple holes, and the exhaust fan (7) is located in the middle of the top of the clothing cavity (2).

4. A user-friendly cabinet-type gas dryer according to claim 3, characterized in that: The hot air passage (6) includes a horizontal section (61) extending to the left and right sides of the cabinet (1). The two ends of the horizontal section (61) are provided with vertically extending sections (62). The vertical sections (62) are connected to the hot air inlet (21). The horizontal section (61) and the vertical section (62) form a passage separated from the heating installation cavity (4). The heating installation cavity (4) is provided with a burner shell (51). The burner shell (51) is connected to the horizontal section (61) through a connecting port (50). The burner assembly (5) is located inside the burner shell (51).

5. A user-friendly cabinet-type gas dryer according to claim 4, characterized in that: The burner housing (51) is provided with a cold air inlet mesh (52) above the burner assembly (5) and near the communication port (50) for cold air from the heating installation cavity (4) to enter and mix with the hot air inside the burner housing (51).

6. A user-friendly cabinet-type gas dryer according to claim 5, characterized in that: The area ratio of the cold air inlet mesh (52) to the hot air inlet (21) is 0.4-0.

5.

7. A user-friendly cabinet-type gas dryer according to claim 2, characterized in that: The top of the clothing cavity (2) is provided with a hanging rack (24) for hanging clothes, and the lower part of the clothing cavity (2) is provided above the hot flow inlet (21) for placing clothes.

8. A user-friendly cabinet-type gas dryer according to claim 1, characterized in that: The heat inlet (21) is provided with a second temperature sensor (26) for detecting the temperature at the heat inlet (21). The second temperature sensor (26) sends the detected temperature signal to the control board (8) to control the output pressure of the gas proportional valve (41). When the temperature of the second temperature sensor (26) is greater than 90°C, the control board (8) controls the gas proportional valve (41) to close.

9. A user-friendly cabinet-type gas dryer according to claim 1, characterized in that: The cabinet (1) is equipped with a touch switch (12) that can send a signal to the control board (8) when the door (3) is opened, thereby controlling the gas proportional valve (41) to close.

10. A user-friendly cabinet-type gas dryer according to claim 5, characterized in that: The cabinet (1) has an air inlet mesh (13) at the bottom for air to enter the heating installation cavity (4). The middle and lower parts of the left and right side walls of the burner shell (51) are respectively provided with secondary air replenishment mesh (53) for air in the heating installation cavity (4) to replenish the burner shell (51). The burner assembly (5) consists of multiple burners.

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