Range hood with refrigeration and cleaning functions and control method thereof

Abstract

The application provides an oil extractor hood with refrigeration and cleaning functions and a control method thereof, and belongs to the technical field of kitchen appliances. The oil extractor hood comprises a hood shell, a fan assembly, a box, a heat exchange component and a cleaning assembly. The box is provided with a first cavity and a second cavity which are independent of each other. The first cavity is communicated between the hood shell and the fan assembly. The box is provided with an air inlet hole and an air outlet hole for communicating the second cavity with the indoor. The heat exchange component is located in the second cavity. The heat exchange component comprises a water tank, a heat exchange assembly and a cross-flow fan. One end of the heat exchange assembly is located in the water tank, and the other end is located between the top of the water tank and the air inlet hole. The air outlet end of the cross-flow fan corresponds to the air outlet hole. The heat exchange assembly can refrigerate the gas sucked by the cross-flow fan. The cleaning assembly is connected between the water tank and the fan assembly. The application integrates the refrigeration and cleaning functions, and has the advantages of simple and beautiful product, low noise, large refrigeration capacity, high space utilization rate and good cleaning effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, and particularly relates to an oil extractor hood with refrigeration and cleaning functions and a control method thereof. BACKGROUND

[0002] The oil extractor hood has become an essential kitchen tool in modern cooking. Because of cooking and heating food by using fire, electricity, etc. in the kitchen, the temperature in the kitchen is relatively high, especially in summer. The temperature in the kitchen is very high, and a large amount of oil fume is generated during the cooking of food such as frying, frying, frying and stewing. In this environment, the cooking experience in the kitchen is very poor, and the cleaning is difficult.

[0003] To solve the problem of high temperature in the kitchen, users generally install a cooling bar or a split wall-mounted air conditioner in the kitchen. The cooling bar has the following problems in actual application: when the fan blows towards the cooking plate, the wind will blow to the gas, causing the gas to burn unstably, and the cooking heat will also be taken away by the wind, which seriously affects cooking. In addition, due to the blowing of the fan, the gas flame is easily blown out, thereby causing a safety hazard. In addition, the air flow of the fan will interfere with the smoke flow field, seriously affecting the smoke suction effect of the extractor hood. The split air conditioner has the following problems: most users have small kitchen space, and the indoor unit has no place to install. The outdoor unit is difficult to install, and a through hole needs to be added on the wall, which affects the beauty of the indoor. SUMMARY

[0004] The purpose of the present application is to provide an oil extractor hood with refrigeration and cleaning functions. By integrating the heat exchange component and the hood, the product is simple and beautiful, the cost is low, the space is not occupied, the product is simple and beautiful and the noise is small, the refrigeration capacity is large, the space utilization rate is high, the cleaning effect can be improved, the product is energy-saving and efficient.

[0005] The purpose of the present application is to provide an oil extractor hood with refrigeration and cleaning functions.

[0006] To achieve the purpose of the present application, the following technical solutions are adopted:

[0007] According to a first aspect of the present application, an oil extractor hood with refrigeration and cleaning functions is provided. The oil extractor hood with refrigeration and cleaning functions comprises:

[0008] A hood shell and a fan assembly, the fan assembly being located above the hood shell;

[0009] A box body located between the hood shell and the fan assembly, the box body being provided with a first cavity and a second cavity which are independent of each other, the first cavity being communicated between the hood shell and the fan assembly, the box body being provided with an air inlet hole and an air outlet hole for communicating the second cavity and the indoor;

[0010] a heat exchange component located inside the second cavity, comprising a water tank for heat recovery, a heat exchange assembly, and a crossflow fan, one end of the heat exchange assembly being located inside the water tank, the other end of the heat exchange assembly being located between the water tank and the air inlet, the crossflow fan being located on a side of the heat exchange assembly close to the air outlet, the air outlet end of the crossflow fan corresponding to the air outlet, the air inlet end of the crossflow fan corresponding to the air inlet, and the heat exchange assembly being capable of cooling the gas sucked in by the crossflow fan;

[0011] A cleaning component is connected to the water tank at one end and to the fan component at the other end, and is used for cleaning the fan component.

[0012] According to one embodiment of the present invention, the heat exchange component includes:

[0013] an evaporator, located between the water tank and the air inlet;

[0014] a condenser, located inside the water tank and connected to the evaporator;

[0015] a compressor, located outside the water tank and connected to the evaporator and the condenser;

[0016] Wherein, air cooling is achieved through the cooperation of the evaporator, the compressor and the condenser.

[0017] According to one embodiment of the present invention, the heat exchange component further comprises:

[0018] A first circulating water nozzle and a second circulating water nozzle are respectively connected to the water tank;

[0019] a water pump, located between the first circulating water nozzle and the second circulating water nozzle, with one end of the water pump connected to the first circulating water nozzle;

[0020] A regulating valve is located between the water pump and the second circulating water nozzle, and the regulating valve includes at least a first fluid passage and a second fluid passage, including a water inlet connected to the water pump, a first water outlet connected to the second circulating water nozzle, and a second water outlet, the water inlet is connected to the water outlet end of the water pump, the first water outlet is connected to the second circulating water nozzle, and the second water outlet is connected to the cleaning component; wherein, the water pump, the water inlet, the first water outlet and the second circulating water nozzle are interconnected to form an internal circulating water circuit, and the water pump, the water inlet, the second water outlet and the cleaning component are interconnected to form a cleaning water circuit.

[0021] According to one embodiment of the present invention, the fan assembly includes a fan housing and a fan, and the cleaning assembly includes a cleaning water pipe and a nozzle, one end of the cleaning water pipe is connected to the second water outlet, and the other end is inserted into the fan housing; one end of the nozzle is connected to the other end of the cleaning water pipe, and the other end is facing the fan.

[0022] According to one embodiment of the present invention, the heat exchange component further comprises:

[0023] a water inlet valve, one end of which is connected to the lower part of the water tank and the other end of which is connected to the water pipe;

[0024] a water outlet valve, one end of which is connected to the upper portion of the water tank and the other end of which is connected to a drain pipe;

[0025] a water level sensor, connected to the water tank, for detecting the liquid level of the water tank;

[0026] A temperature sensor is connected to the water tank and is used to monitor the temperature of the water tank in real time;

[0027] a controller connected to the temperature sensor, the water level sensor, the water outlet valve, and the water inlet valve;

[0028] Among them, the water outlet valve and the water inlet valve are connected to form an external circulation water circuit. The controller can adjust the opening or closing of the water outlet valve and the water inlet valve according to the data of the temperature sensor and the water level sensor to adjust the temperature and water volume of the water tank in real time.

[0029] According to one embodiment of the present invention, the water tank includes a top wall, the top wall is recessed downward to form a water receiving groove for receiving water, and a water hole is provided at the bottom of the water receiving groove;

[0030] The bottom surface of the evaporator is tilted forward and upward from the top wall, and the lowest point of the evaporator corresponds to the notch of the water receiving tank, so that the condensed water formed by the evaporator flows into the water receiving tank.

[0031] According to one embodiment of the present invention, a partition is connected to the interior of the box, and the partition divides the interior of the box into the first cavity and the second cavity;

[0032] The water tank includes a front side wall, the lower portion of which is recessed inward to form a receiving slot for receiving the cross-flow fan, and an inclined plate is connected between the front side wall and the top wall, and the inclined plate is arranged to be inclined from top to bottom.

[0033] According to one embodiment of the present invention, the heat exchange component further includes a reversing device for controlling the flow direction of the refrigerant between the evaporator and the condenser, and the reversing device is connected between the evaporator, the compressor and the condenser to heat or cool the gas.

[0034] According to a second aspect of the present invention, a control method for a range hood with cooling and cleaning functions is provided. The control method for a range hood with cooling and cleaning functions comprises:

[0035] Real-time detection of indoor temperature, if the indoor temperature exceeds the first preset temperature value, the cooling process is started;

[0036] When starting the refrigeration program, determining whether the water level of the water tank meets the preset water level;

[0037] If the water level of the water tank meets the preset water level, the heat exchange component and the cross-flow fan are started, wherein the evaporator cools the gas sucked in by the cross-flow fan and the condenser heats the water inside the water tank;

[0038] Real-time detection and determination of whether the water temperature of the water tank exceeds a preset water temperature value, and if the temperature of the water tank exceeds the preset water temperature value, determination of whether to start a cleaning program;

[0039] If the cleaning program is turned on, the cleaning water circuit is started; if the cleaning program is not turned on, the water tank is cooled.

[0040] According to one embodiment of the present invention, when the water channel cleaning is started, the heat exchange component and the cross-flow fan are turned off;

[0041] If the temperature of the water tank exceeds the preset water temperature value and the cleaning program is not started, the external circulation water circuit is opened to cool the water tank.

[0042] According to one embodiment of the present invention, if the heat exchange component is started, the internal circulation water circuit is opened;

[0043] If the water level in the water tank does not meet the preset water level, the water inlet valve is opened to replenish water in the water tank.

[0044] An embodiment of the present invention has the following advantages or beneficial effects:

[0045] The present invention separates the fan assembly from the range hood body, and integrates the heat exchange component and the range hood into one, which is easy to install. In addition, the box body, the heat exchange component, the cleaning component and the fan assembly can be installed in the ceiling, which does not take up space, has low noise, and is simple and beautiful.

[0046] By integrating the range hood cleaning component with the cooling function, the hot water generated by the water tank heated by the heat exchange component is fully utilized to clean the fan component, improving the cleaning effect and making the product energy-efficient and efficient. This application integrates cooling and cleaning functions in one product, which is simple, beautiful, and low-cost. Compared with conventional air-cooled air conditioners, it has a large cooling capacity, high space utilization, and a good user experience.

[0047] The control method of the present invention integrates refrigeration and cleaning functions, and can fully utilize the hot water generated by the heat exchange component to heat the water tank to clean the fan component, thereby improving the cleaning effect and making the product energy-saving and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings.

[0049] Figure 1 is a schematic diagram of a range hood with cooling and cleaning functions according to an exemplary embodiment.

[0050] Figure 2 is a cross-sectional view of a range hood with cooling and cleaning functions according to an exemplary embodiment.

[0051] Figure 3 FIG. 1 is a schematic diagram showing the connection between a box and a heat exchange component according to an exemplary embodiment.

[0052] Figure 4 FIG1 is a partial perspective schematic diagram of a heat exchange component according to an exemplary embodiment.

[0053] Figure 5 FIG. 1 is a schematic diagram showing the connection between a heat exchange component and a cleaning water pipe according to an exemplary embodiment.

[0054] Figure 6 is a cross-sectional view showing a heat exchange component and a cleaning water pipe according to an exemplary embodiment.

[0055] Figure 7 is a schematic diagram of a water tank according to an exemplary embodiment.

[0056] Figure 8 is a schematic diagram showing a range hood control method according to an exemplary embodiment.

[0057] The description of the accompanying drawings is as follows:

[0058] 1. Range hood housing;

[0059] 2. Fan assembly; 21. Fan housing; 22. Fan;

[0060] 3. Box body; 30. Partition; 31. First cavity; 32. Second cavity; 33. Air inlet; 34. Air outlet;

[0061] 4. Heat exchange components; 41. Heat exchange assembly; 40. Water tank; 401. Top wall; 4011. Water receiving trough; 402. Front side wall; 4021. Receiving trough; 403. Inclined plate; 411. Evaporator; 412. Condenser; 413. Compressor; 414. First circulation water nozzle; 415. Second circulation water nozzle; 416. Water pump; 417. Regulating valve; 42. Crossflow fan; 421. Air outlet adapter; 43. Water inlet valve; 44. Water outlet valve; 45. Water level sensor; 46. Temperature sensor;

[0062] 5. Cleaning components; 51. Cleaning water pipe; 52. Nozzle; 6. Smoke pipe. DETAILED DESCRIPTION

[0063] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0064] The terms "a", "an", "the", "" are used to indicate that there are one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0065] The range hood of the embodiment of the present invention has cooling and cleaning functions, and the range hood with cooling and cleaning functions includes a range hood shell 1, a fan assembly 2 located above the range hood shell 1, a box body 3, a heat exchange component 4 and a cleaning component 5. The box body 3 is located between the range hood shell 1 and the fan assembly 2. A partition 30 is provided inside the box body 3. The partition 30 divides the interior of the box body 3 into a first cavity 31 and a second cavity 32 that are independent of each other. The first cavity 31 can be used as a range hood flow channel to communicate between the range hood shell 1 and the fan assembly 2. Specifically, ventilation holes are provided at the bottom and top of the first cavity 31. The top of the first cavity 31 can be connected to the fan assembly 2 through a smoke pipe 6 and an air outlet seat. That is, in this application, the fan 22 is separated from the range hood body, and the heat exchange component 4 and the range hood are integrated into one, which is easy to install. The box body 3, the heat exchange component 4, the cleaning component 5 and the fan assembly 2 can be installed in the ceiling, which does not take up space, has low noise, and is simple and beautiful.

[0066] The box body 3 near the second cavity 32 side is provided with an air inlet 33 and an air outlet 34, so that the second cavity 32 is connected to the indoor room. The heat exchange component 4 is located inside the second cavity 32, and includes a water tank 40 for heat recovery, a heat exchange component 41 and a cross-flow fan 42. One end of the heat exchange component 41 is located inside the water tank 40, and the other end of the heat exchange component 41 is located between the water tank 40 and the air inlet 33. The cross-flow fan 42 is located on the side of the heat exchange component 41 near the air outlet 34. The air outlet end of the cross-flow fan 42 corresponds to the air outlet 34, and the air inlet end of the cross-flow fan 42 corresponds to the air inlet 33. The other end of the heat exchange component 41 can cool the gas inhaled by the cross-flow fan 42, and the other end of the heat exchange component 41 heats the water in the water tank 40 by exchanging heat with the water in the water tank 40. In this application, the first cavity 31 can serve as the range hood flow channel, and the second cavity 32 as the air cooling flow channel. Since the range hood flow channel and the air cooling flow channel are completely isolated, the air cooling flow channel does not affect the suction and exhaust capabilities of the range hood itself. Preferably, an air outlet adapter 421 is connected between the air outlet of the crossflow fan 42 and the air outlet 34 to guide the cooled air so that it is blown smoothly into the room, improving the cooling effect.

[0067] One end of the cleaning assembly 5 is connected to the water tank 40, and the other end is connected to the fan assembly 2. The cleaning assembly 5 uses the heated water in the water tank 40 to clean the fan assembly 2. By integrating the range hood cleaning assembly 5 with the cooling function, the hot water heated by the heat exchange assembly 41 in the water tank 40 is fully utilized to clean the fan assembly 2, improving the cleaning effect and achieving energy-saving and high-efficiency. This application integrates cooling and cleaning functions, improves space utilization, is simple and beautiful, low-cost, and provides a good user experience.

[0068] like Figure 2-6An exemplary embodiment of a heat exchange assembly 41 is shown. The heat exchange assembly 41 includes an evaporator 411 located between the water tank 40 and the air inlet 33, a condenser 412 located inside the water tank 40, and a compressor 413 located outside the water tank 40. The compressor 413 connects the evaporator 411 and the condenser 412. The bottom of the evaporator 411 near the first chamber 31 is connected to the top of the water tank 40. The condenser 412 and the evaporator 411 are connected through the compressor 413. The compressor 413 connects the evaporator 411 and the condenser 412. The evaporator 411, the compressor 413, and the condenser 412 cooperate to achieve air cooling. The evaporator 411, the compressor 413, and the condenser 412 exchange heat between the evaporator 411, the compressor 413, and the condenser 412 through the refrigerant medium. The detailed principle can be referred to as air conditioning. In this application, a plurality of grid-shaped air inlet holes 33 are opened at the top of the housing 3 corresponding to the position of the evaporator 411 to ensure the intake area and the uniformity of the intake. Turn on the cross-flow fan 42, the evaporator 411, the compressor 413 and the condenser 412. The indoor air is sucked into the second cavity 32 through the air inlet 33 by the cross-flow fan 42 and moves downward to the evaporator 411. The evaporator 411 cools the sucked air. The refrigerant in the evaporator 411 absorbs heat and enters the compressor 413 and then enters the condenser 412 to release heat. This can heat the water in the water tank 40 and transfer the heat of the indoor air to the water. Compared with conventional air-cooling, the cooling capacity is large and the experience is good.

[0069] like Figure 2-6The heat exchange assembly 41 is an exemplary embodiment shown in FIG. 4 , wherein the heat exchange assembly 41 further includes a first circulating water nozzle 414, a second circulating water nozzle 415, a water pump 416, and a regulating valve 417. The first circulating water nozzle 414 and the second circulating water nozzle 415 are respectively connected to the middle of the water tank 40, preferably in the middle of the condenser 412. The water pump 416 is located between the first circulating water nozzle 414 and the second circulating water nozzle 415. One end of the water pump 416 is connected to the first circulating water nozzle 414. The regulating valve 417 is located at the water pump 416. Between the water tank 40 and the second circulating water nozzle 415, the regulating valve 417 includes a water inlet connected to the water pump 416, a first water outlet connected to the second circulating water nozzle 415, and a second water outlet. The water inlet is connected to the water outlet of the water pump, the first water outlet is connected to the second circulating water nozzle 415, and the second water outlet is connected to the cleaning assembly 5. The water pump 416, the water inlet, the first water outlet, and the second circulating water nozzle 415 are interconnected to form an internal circulating water circuit. The water pump 416, the water inlet, the second water outlet, and the cleaning assembly 5 are interconnected to form a cleaning water circuit. When the kitchen temperature is high, the first fluid passage is opened and the second fluid passage is closed to cool the indoor air. When the temperature of the water tank 40 rises to a second preset temperature, it is determined whether the range hood needs to be cleaned, such as whether the user has selected the cleaning function. If the cleaning function is enabled, the first fluid passage is closed and the second fluid passage is opened. The water pump 416 pumps water in the water tank 40 into the cleaning assembly 5 to clean the fan assembly 2.

[0070] like Figure 1-2 An exemplary embodiment of the fan assembly 2 shown is shown, the fan assembly 2 includes a fan housing 21 and a fan 22, and the cleaning assembly 5 includes a cleaning water pipe 51 and a nozzle 52, one end of the cleaning water pipe 51 is connected to the second water outlet, and the other end is inserted into the fan housing 21; one end of the nozzle 52 is connected to the other end of the cleaning water pipe 51, and the other end is directed toward the fan 22.

[0071] During the air cooling process, the second water outlet of the regulating valve 417 is closed, the water inlet and the first water outlet are connected, and the water pump 416 is running, driving the water in the water tank 40 to circulate through the first and second circulating water nozzles 414 and 415. During the cleaning process, the first water outlet is closed, the water inlet and the second water outlet are connected, and the water pump 416 is running to pump high-temperature water out of the water tank 40 and spray it through the cleaning water pipe 51 and the nozzle 52 to clean the impeller, volute, and other structural components of the range hood fan 22.

[0072] like Figure 2-6An exemplary embodiment of the heat exchange component 4 shown is shown, and the heat exchange component 4 also includes a water inlet valve 43, a water outlet valve 44, a water level sensor 45, a temperature sensor 46 and a controller: the water level sensor 45 is connected to the water tank 40 for detecting the liquid level of the water tank 40; one end of the water inlet valve 43 is connected to the lower part of the water tank 40, and the other end of the water inlet valve 43 is connected to the tap water pipe, one end of the water outlet valve 44 is connected to the upper part of the water tank 40, and the other end of the water outlet valve 44 is connected to the drain pipe, and the temperature sensor 46 is connected to the water tank 40 for real-time monitoring of the temperature of the water tank 40; the controller is respectively connected to the temperature sensor 46, the water level sensor 45, the water outlet valve 44 and the water inlet valve 43, wherein the water outlet valve 44 and the water inlet valve 43 are connected to form an external circulation water circuit, and the controller can adjust the opening or closing of the water outlet valve 44 and the water inlet valve 43 according to the data of the temperature sensor 46 and the water level sensor 45, so as to adjust the temperature and water volume of the water tank 40 in real time.

[0073] After the cooling function is activated, if the water level in water tank 40 has not reached the preset level, water inlet valve 43 opens, allowing tap water to flow into water tank 40 through the pipeline. When the water level reaches the preset level, water level sensor 45 sends a command to the controller, closing water inlet valve 43. Compressor 413 starts, condenser 412 heats the water in water tank 40, water pump 416 starts, regulating valve 417 connects the water inlet and the first water outlet, and closes the second water outlet. The water in water tank 40 circulates continuously. The crossflow fan 42 operates, and air flows in through air inlet 33, is cooled by evaporator 411, and flows out through air outlet 34, cooling the kitchen. Temperature sensor 46 monitors the water temperature in water tank 40 in real time. After a period of operation, when the water temperature in water tank 40 exceeds a second preset temperature value, water inlet valve 43 opens, allowing tap water to flow into water tank 40. The water in water tank 40 then flows out of water outlet valve 44 and into the kitchen drain. As a certain amount of low-temperature tap water flows into water tank 40, the temperature of water tank 40 continuously decreases. When the water temperature in water tank 40 falls below the second preset temperature value, water inlet valve 43 closes, significantly reducing the water temperature in water tank 40 and greatly improving cooling efficiency. Because the cooling process is accompanied by a continuous water exchange process, cooling efficiency is guaranteed throughout the entire process. Compared to conventional air-cooling systems, the cooling capacity is large, and the user experience is better.

[0074] like Figure 2-7An exemplary embodiment of the heat exchange component 4 is shown, in which a water tank 40 includes a top wall 401, which is recessed downward to form a water receiving groove 4011 for receiving water. A water hole is defined at the bottom of the water receiving groove 4011. The bottom surface of the evaporator 411 is tilted forward and upward from the top wall 401, with the lowest point of the evaporator 411 corresponding to the notch of the water receiving groove 4011, allowing condensed water from the evaporator 411 to flow into the water receiving groove 4011. Because the lowest point of the evaporator 411 is within the water receiving groove 4011, a water leakage hole is defined in the water receiving groove 4011, allowing water condensed from the evaporator 411 to drip into the water receiving groove 4011 and be collected into the water tank 40 through the leakage hole.

[0075] like Figure 2-7 An exemplary embodiment of a water tank 40 is shown. The water tank 40 includes a front sidewall 402. The lower portion of the front sidewall 402 is recessed inward to form a receiving slot 4021 for accommodating a crossflow fan 42. This fully utilizes the space within the housing 3, reduces the product's volume, and enhances its simplicity and aesthetics. An inclined plate 403 is connected between the front sidewall 402 and the top wall 401. The inclined plate 403 is tilted downward from top to bottom, guiding the inhaled air and reducing airflow resistance.

[0076] like Figure 1-7 An exemplary embodiment of the heat exchange component 4 is shown, wherein the heat exchange component 4 further includes a reversing device for controlling the flow direction of the refrigerant between the evaporator 411 and the condenser 412. The reversing device is connected between the evaporator 411, the compressor 413, and the condenser 412 to simultaneously form a heating cycle and a cooling cycle. That is, the present application can form a heating cycle or a cooling cycle. The reversing device in this embodiment can be a four-way valve, which is connected between the compressor 413, the evaporator 411, and the condenser 412 to change the direction of the refrigerant to achieve a heating effect. The specific principle can be referred to as air conditioning, and this application will not be repeated here.

[0077] A control method for a range hood with cooling and cleaning functions according to an embodiment of the present invention includes:

[0078] Step 100: Detect the indoor temperature in real time. If the indoor temperature exceeds a first preset temperature value, start the cooling process.

[0079] Cooking and heating food in the kitchen using fire, electricity, etc. causes the temperature inside the kitchen to be high, especially in the summer. A temperature sensor 46 is provided indoors to monitor the indoor temperature in real time. The temperature sensor 46 is connected to a controller, which determines whether the kitchen temperature exceeds a first preset temperature value based on the temperature sensor 46. If the kitchen temperature exceeds the first preset temperature value, a cooling process is initiated.

[0080] In step 200, when the cooling process is started, the water level in water tank 40 is determined to be at a preset level. This is determined using water level sensor 45. If the water level in water tank 40 has not reached the preset level, inlet valve 43 is opened, allowing tap water to flow into water tank 40 through the pipeline. When the water level reaches the preset level, water level sensor 45 sends a command to the controller to close inlet valve 43.

[0081] In step 300, if the water level in the water tank 40 meets the preset water level, the heat exchange component 41 and the cross-flow fan 42 are started, wherein the evaporator 411 cools the gas sucked in by the cross-flow fan 42, and the condenser 412 heats the water inside the water tank 40; specifically, when the water level in the water tank 40 meets the preset water level, the cross-flow fan 42 is operated, and the air flows in from the air inlet 33, is cooled by the evaporator 411, and flows out from the air outlet 34 to cool the kitchen.

[0082] Step 400 , real-time detection and determination of whether the water temperature of the water tank 40 exceeds a preset water temperature value. If the temperature of the water tank 40 exceeds the preset water temperature value, determination is made as to whether to start the cleaning process.

[0083] The temperature sensor 46 in the water tank 40 is used to detect and determine the water temperature of the water tank 40 in real time. When the water temperature exceeds the preset water temperature, it is first determined whether the user or the controller has started the cleaning program. Because if the cleaning program is started, the water in the water tank 40 needs to be used to clean the fan assembly 2. If the cleaning program is not started, the water tank 40 needs to be cooled to ensure an efficient cooling effect. Therefore, it is necessary to first determine whether to start the cleaning program.

[0084] Step 500: If the cleaning program is turned on, the cleaning water circuit is started; if the cleaning program is not turned on, the water tank 40 is cooled.

[0085] During the cleaning process, the first water outlet is closed, the water inlet and the second water outlet are connected, and the water pump 416 is running to pump the high-temperature water from the water tank 40 and spray it through the cleaning water pipe 51 and nozzle 52 to clean the impeller and volute of the range hood fan 22 and other structural components. If the cleaning process is not started and the temperature of the water tank 40 exceeds the preset water temperature, the water tank 40 must be cooled to ensure continued effective cooling.

[0086] This application integrates the range hood cleaning component 5 with the cooling function, fully utilizing the hot water generated by the heat exchange component 41 in the water tank 40 to clean the fan component 2, improving the cleaning effect and achieving energy-saving and high efficiency. This application integrates cooling and cleaning functions, achieving high space utilization, a simple and beautiful product, low cost, and a good user experience. The water-cooling solution, which uses the water in the water tank 40 for cooling, provides high cooling capacity and a good user experience.

[0087] In one example embodiment, the control method of the range hood with refrigeration and cleaning functions further comprises:

[0088] When the cleaning water path is started, the heat exchange assembly 41 and the cross-flow fan 42 are closed, because when the cleaning water path is started, water in the water tank 40 needs to be pumped to clean the fan, at this time, the heat exchange assembly 41 and the cross-flow fan 42 need to be temporarily closed.

[0089] If the temperature of the water tank 40 exceeds the preset water temperature value and the cleaning program is not started, the outer circulation water path is opened to cool the water tank 40. Specifically, the water inlet valve 43 is opened, tap water flows into the water tank 40, and the water in the water tank 40 flows out from the water outlet valve 44 of the water tank 40 to the kitchen sewer. With a certain amount of low-temperature tap water flowing into the water tank 40, the temperature of the water tank 40 is constantly lowered, achieving cooling of the water tank 40.

[0090] In one example embodiment, the control method of the range hood with refrigeration and cleaning functions further comprises:

[0091] When the heat exchange assembly 41 is started, the inner circulation water path is opened; the water temperature inside the entire water tank 40 is not the same, and the water temperature closer to the condenser 412 is higher, which is not conducive to heat exchange efficiency and refrigeration efficiency. The inner circulation water path can make the water in the water tank flow quickly and mix evenly, thereby making the water temperature uniform and improving the heat dissipation efficiency.

[0092] If the water level of the water tank 40 does not meet the preset water level, the water inlet valve 43 is opened to supplement water to the water tank 40. If the water level of the water tank 40 does not reach the preset water level, the water inlet valve 43 is opened, and external tap water flows into the water tank 40 through the pipeline. When the water level reaches the set preset water level, the water level sensor 45 sends an instruction to the controller to close the water inlet valve 43,

[0093] The specific principle is as follows:

[0094] After the cooling process is activated, if the water level in water tank 40 has not reached the preset level, water inlet valve 43 opens, allowing tap water to flow into water tank 40 through the pipe. When the water level reaches the preset level, water level sensor 45 sends a command to the controller, closing water inlet valve 43. Compressor 413 starts, condenser 412 heats the water in water tank 40, water pump 416 starts, regulating valve 417 connects the water inlet and the first water outlet, and closes the second water outlet. The water in water tank 40 circulates continuously. The crossflow fan 42 operates, and air flows in through air inlet 33, is cooled by evaporator 411, and flows out through air outlet 34, cooling the kitchen. Temperature sensor 46 monitors the water temperature in water tank 40 in real time. After a period of operation, when the water temperature in water tank 40 exceeds a second preset temperature value, water inlet valve 43 opens, allowing tap water to flow into water tank 40. The water in water tank 40 then flows out of water outlet valve 44 and into the kitchen drain. As a certain amount of low-temperature tap water flows into water tank 40, the temperature of water tank 40 continuously decreases. When the water temperature in water tank 40 falls below the second preset temperature value, water inlet valve 43 closes, significantly reducing the water temperature in water tank 40 and greatly improving cooling efficiency. Because the cooling process is accompanied by a continuous water exchange process, cooling efficiency is guaranteed throughout the entire process. Compared to conventional air-cooling systems, the cooling capacity is large, and the user experience is better.

[0095] Start the cleaning program, open the water inlet valve 43, and external tap water flows into the water tank 40 through the pipeline. When the water level reaches the preset water level, the water level sensor 45 sends a command to the controller to close the water inlet valve 43, start the compressor 413, and heat the water in the water tank 40 with the condenser 412. The water pump 416 starts, and the regulating valve 417 connects the water inlet and the first water outlet, and the second water outlet is closed. The water in the water tank 40 circulates continuously. The cross-flow fan 42 is running, and the air flows in from the air inlet 33, is cooled by the evaporator 411, and flows out from the air outlet 34 to cool the kitchen. The temperature sensor 46 detects the water temperature in the water tank 40 in real time. After running for a period of time, the water temperature in the water tank 40 exceeds the third preset temperature. The third preset temperature can be greater than or equal to the second preset temperature. As long as the cleaning temperature requirements are met, this application is not limited here. When the water temperature of the water tank 40 reaches the third preset temperature, the compressor 413 is turned off, the cross-flow fan 42 is turned off, the first water outlet is closed, the water inlet and the second water outlet are connected, and the water pump 416 is operated to extract the high-temperature water in the water tank 40 and spray it out through the cleaning water pipe 51 via the nozzle 52 to clean the impeller, volute and other structural parts of the range hood fan 22.

[0096] In the embodiments of the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly specified. The terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integral connection. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0097] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0098] In the description of the present application, the terms "one embodiment", "one preferred embodiment" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0099] The above is only the preferred embodiment of the present application, and is not intended to limit the embodiments of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A range hood with cooling and cleaning functions, characterized in that: include: A range hood housing (1) and a fan assembly (2), wherein the fan assembly (2) is located above the range hood housing (1); A box (3) is located between the range hood housing (1) and the fan assembly (2), the box (3) being provided with a first cavity (31) and a second cavity (32) which are independent of each other, the first cavity (31) being in communication with the range hood housing (1) and the fan assembly (2), and the box (3) being provided with an air inlet (33) and an air outlet (34) for communicating with the second cavity (32) and the room; a heat exchange component (4), located inside the second cavity (32), comprising a water tank (40) for heat recovery, a heat exchange component (41), and a cross-flow fan (42), one end of the heat exchange component (41) being located inside the water tank (40), the other end of the heat exchange component (41) being located between the water tank (40) and the air inlet (33), the cross-flow fan (42) being located on a side of the heat exchange component (41) close to the air outlet (34), the air outlet end of the cross-flow fan (42) corresponding to the air outlet (34), the air inlet end of the cross-flow fan (42) corresponding to the air inlet (33), and the heat exchange component (41) being capable of cooling the gas sucked in by the cross-flow fan (42); A cleaning component (5), one end of which is connected to the water tank (40) and the other end of which is connected to the fan component (2), and is used for cleaning the fan component (2); The heat exchange component (41) comprises: an evaporator (411), located between the water tank (40) and the air inlet (33); a condenser (412), located inside the water tank (40) and connected to the evaporator (411); A compressor (413), located outside the water tank (40) and connected to the evaporator (411) and the condenser (412); The evaporator (411), the compressor (413) and the condenser (412) cooperate to achieve air cooling. Also includes: Real-time detection of indoor temperature, if the indoor temperature exceeds the first preset temperature value, the cooling process is started; When starting the refrigeration program, determining whether the water level of the water tank (40) meets the preset water level; If the water level of the water tank (40) meets the preset water level, the heat exchange component (41) and the cross-flow fan (42) are started, wherein the evaporator (411) cools the gas sucked by the cross-flow fan (42), and the condenser (412) heats the water inside the water tank (40); Real-time detection and determination of whether the water temperature of the water tank (40) exceeds a preset water temperature value, and if the temperature of the water tank (40) exceeds the preset water temperature value, determination of whether to start a cleaning program; If the cleaning program is started, the cleaning water circuit is started; if the cleaning program is not started, the water tank (40) is cooled; After the refrigeration program is started, the temperature sensor (46) detects the water temperature in the water tank (40) in real time. After a period of operation, when the water temperature in the water tank (40) exceeds the second preset temperature value, the water inlet valve (43) is opened, and tap water flows into the water tank (40). The water in the water tank (40) flows out from the water outlet valve (44) of the water tank (40) and flows into the kitchen sewer. As a certain amount of low-temperature tap water flows into the water tank (40), the temperature of the water tank (40) continues to decrease. When the water temperature in the water tank (40) is lower than the second preset temperature value, the water inlet valve (43) is closed.

2. The range hood with cooling and cleaning functions according to claim 1, characterized in that: The heat exchange component (41) further includes: A first circulating water nozzle (414) and a second circulating water nozzle (415) are respectively connected to the water tank (40); a water pump (416) located between the first circulating water nozzle (414) and the second circulating water nozzle (415), one end of the water pump (416) being connected to the first circulating water nozzle (414); a regulating valve (417) located between the water pump (416) and the second circulating water nozzle (415), comprising a water inlet connected to the water pump (416), a first water outlet connected to the second circulating water nozzle (415), and a second water outlet, wherein the water inlet is connected to the water outlet end of the water pump (416), the first water outlet is connected to the second circulating water nozzle (415), and the second water outlet is connected to the cleaning component (5); The water pump (416), the water inlet, the first water outlet and the second circulating water nozzle (415) are interconnected to form an internal circulating water circuit, and the water pump (416), the water inlet, the second water outlet and the cleaning component (5) are interconnected to form a cleaning water circuit.

3. The range hood with cooling and cleaning functions according to claim 2, characterized in that: The fan assembly (2) comprises a fan housing (21) and a fan (22); the cleaning assembly (5) comprises a cleaning water pipe (51) and a nozzle (52); one end of the cleaning water pipe (51) is connected to the second water outlet, and the other end is inserted into the fan housing (21); one end of the nozzle (52) is connected to the other end of the cleaning water pipe (51), and the other end faces the fan (22).

4. The range hood with cooling and cleaning functions according to claim 2, characterized in that: The heat exchange component (4) further includes: a water inlet valve (43), one end of which is connected to the lower portion of the water tank (40) and the other end of which is connected to the water pipe; a water outlet valve (44), one end of which is connected to the upper portion of the water tank (40) and the other end of which is connected to a drain pipe; a water level sensor (45), connected to the water tank (40), for detecting the liquid level of the water tank (40); a temperature sensor (46), connected to the water tank (40), for monitoring the temperature of the water tank (40) in real time; a controller connected to the temperature sensor (46), the water level sensor (45), the water outlet valve (44) and the water inlet valve (43); The water outlet valve (44) and the water inlet valve (43) are connected to form an external circulation water circuit, and the controller can regulate the opening or closing of the water outlet valve (44) and the water inlet valve (43) according to the data of the temperature sensor (46) and the water level sensor (45), so as to regulate the temperature and water volume of the water tank (40) in real time.

5. The range hood with cooling and cleaning functions according to claim 2, characterized in that: The water tank (40) comprises a top wall (401), wherein the top wall (401) is concave downward to form a water receiving trough (4011) for receiving water, and a water hole is provided at the bottom of the water receiving trough (4011); The bottom surface of the evaporator (411) is tilted forward and upward from the top wall (401), and the lowest point of the evaporator (411) corresponds to the notch of the water receiving trough (4011), so that condensed water formed by the evaporator (411) flows into the water receiving trough (4011).

6. The range hood with cooling and cleaning functions according to claim 5, characterized in that: A partition (30) is connected to the interior of the box (3), and the partition (30) divides the interior of the box (3) into the first cavity (31) and the second cavity (32); The water tank (40) comprises a front side wall (402), the lower portion of the front side wall (402) being recessed inward to form a receiving groove (4021) for receiving the cross-flow fan (42), and an inclined plate (403) being connected between the front side wall (402) and the top wall (401), the inclined plate (403) being arranged to be inclined from top to bottom.

7. The range hood with cooling and cleaning functions according to claim 2, characterized in that: The heat exchange component (4) further includes a reversing device for controlling the flow direction of the refrigerant between the evaporator (411) and the condenser (412); the reversing device is connected between the evaporator (411), the compressor (413) and the condenser (412) to simultaneously form a heating cycle and a cooling cycle.

8. The range hood control method according to claim 1, characterized in that: When starting the waterway cleaning, the heat exchange component (41) and the cross-flow fan (42) are turned off; If the temperature of the water tank (40) exceeds a preset water temperature value and the cleaning program is not started, the external circulation water circuit is opened to cool the water tank (40).

9. The range hood control method according to claim 1, characterized in that: If the heat exchange component (41) is activated, the internal circulation water circuit is opened; If the water level in the water tank (40) does not meet the preset water level, the water inlet valve (43) is opened to replenish water into the water tank (40).

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