Range hood with built-in air cooler and cold air blowing function

Abstract

The invention belongs to the technical field of range hoods, and particularly relates to a range hood with a built-in air cooler and a cold air blowing function, the range hood comprises a machine body, a case fixedly mounted at the top of the machine body and a second wind wheel unit fixedly mounted in the case, a flue gas pipeline is arranged at the bottom of the case, and the flue gas pipeline is connected with the output end of the second wind wheel unit; the air suction cover is arranged at the bottom of the machine body, a grease filter screen is arranged below the air suction cover, and an oil receiving disc is arranged on one side of the grease filter screen; the refrigerating unit comprises a first wind wheel unit, a compressor unit, an evaporator and a condenser; a cold air outlet is formed in the front face of the machine body. A cold air channel communicating with the cold air outlet is formed in the machine body. Condensate water generated by the evaporator is pumped out through the cleaning mechanism and sprayed into the second wind wheel unit, the second wind wheel unit is automatically cleaned, the condensate water generated by the refrigerating unit is utilized, and the problem that the interior of the refrigerating range hood is difficult to clean is solved.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, and in particular to a range hood with a built-in cooling fan and a cooling air blowing function. Background Art

[0002] Range hoods are appliances used in home kitchens to remove cooking fumes. Kitchens in most homes are small and cramped. The use of a stove during cooking inevitably generates a lot of heat, raising the overall temperature of the kitchen and reducing comfort. This is especially true in summer, when cooking in such an environment can be unbearably hot, affecting the cooking experience, significantly reducing the taste of the food, and ultimately impacting the quality of life.

[0003] Some existing range hoods on the market have added refrigeration units to provide cool air and improve user comfort. However, these range hoods have the following problems: if the refrigeration unit is not properly arranged, the overall size of the range hood will be large; secondly, the internal structure of range hoods with refrigeration function is complex, making cleaning difficult. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a range hood with a built-in cooling fan and a cooling function. By combining a refrigeration unit and a cleaning mechanism inside the range hood, the condensate generated by the refrigeration unit can be used to clean the range hood, thereby solving the problems in the background technology.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution of the present invention is as follows: The present invention proposes a range hood with a built-in cooling fan and a cooling air blowing function, comprising: a body, a casing fixedly installed on the top of the body, and a second impeller unit fixedly installed inside the casing. A flue gas duct is provided at the bottom of the casing, and the flue gas duct is connected to the output end of the second impeller unit; a suction hood is located at the bottom of the body, with a grease filter screen below the suction hood and an oil collection tray on one side of the grease filter screen; a refrigeration unit, comprising a first impeller unit, a compressor unit, an evaporator, and a condenser; wherein the first impeller unit and the evaporator are located inside the body, with the first impeller unit located on one side of the evaporator. A cold air outlet is provided on the front of the body, and a cold air channel communicating with the cold air outlet is provided inside the body. The first impeller unit is used to blow the cold air generated by the evaporator into the cold air channel; the compressor unit and the condenser are located inside the casing, with the condenser located below the second impeller unit.

[0006] As a preferred embodiment of the present invention, a water storage box is provided on the side of the body for storing condensate liquefied on the surface of the evaporator.

[0007] As a preferred embodiment of the present invention, a cleaning mechanism is installed inside the casing for cleaning the second wind turbine unit. The cleaning mechanism is located on the side of the air inlet of the second wind turbine unit.

[0008] As a preferred embodiment of the present invention, the cleaning mechanism includes a fixed frame and a water pump fixedly installed in the fixed frame. The output end of the water pump is connected to a water outlet pipe, and the end of the water outlet pipe is rotatably connected to a water spray head. The water spray head is located inside the air inlet of the second wind turbine unit.

[0009] As a preferred embodiment of the present invention, the water pump input end is connected to a water inlet pipe, one end of which is connected to a water storage box, and a check valve is installed on the water inlet pipe.

[0010] As a preferred embodiment of the present invention, the water spray head is provided with a plurality of obliquely arranged spray holes evenly distributed on its circumference, and the spray holes drive the water spray head to rotate automatically when spraying water.

[0011] As a preferred embodiment of the present invention, the bottom of the second wind turbine unit is connected to a drain pipe, and the end of the drain pipe is connected to an oil receiving pan.

[0012] As a preferred embodiment of the present invention, the machine body is provided with a cold air chamber, the first wind turbine unit and the evaporator are both located in the cold air chamber, and the output end of the cold air chamber is sealed to the input end of the cold air channel; an oil fume filter is installed at the air inlet of the cold air chamber.

[0013] As a preferred embodiment of the present invention, a guide plate is installed below the suction hood, and the guide plate is located below the grease filter screen.

[0014] As a preferred embodiment of the present invention, the cold air outlet is provided with a rotatable swing blade.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention, by placing the first wind turbine unit and evaporator inside the range hood body, and the compressor unit and condenser inside the range hood casing, makes the internal structure of the refrigeration unit reasonable, makes full use of the internal space of the range hood, and solves the problem of excessively large size of the refrigeration range hood.

[0017] 2. This invention installs a cleaning mechanism inside the range hood casing. The cleaning mechanism extracts the condensate produced by the evaporator and sprays it into the second fan turbine unit, automatically cleaning the second fan turbine unit. This not only utilizes the condensate produced by the refrigeration unit, but also solves the problem of difficult cleaning inside the refrigerated range hood.

[0018] 3. By placing the cleaning mechanism at the air inlet of the second wind turbine unit, the present invention draws in the hot air generated by the condenser through the second wind turbine unit during the cleaning process. The hot air heats the water mist sprayed by the cleaning mechanism, increasing the temperature of the water mist. This makes it easier to melt the oil stains inside the second wind turbine unit during the cleaning process, thereby improving the cleaning effect on the second wind turbine unit.

[0019] 4. By placing the condenser below the second wind turbine unit, the hot air produced by the condenser during operation is directly drawn into and discharged by the second wind turbine unit, thus avoiding the diffusion of hot air. The design layout is reasonable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the invention from another angle.

[0022] Figure 3 This is a schematic diagram of the internal structure of the range hood of the present invention.

[0023] Figure 4 for Figure 3 Another perspective diagram.

[0024] Figure 5 for Figure 3 A side view diagram.

[0025] Figure 6 This is a schematic diagram of the cleaning mechanism proposed in this invention.

[0026] The corresponding names of the attached figures are as follows: 100. Body; 101. Chassis; 102. Baffle plate; 103. Flue gas duct; 104. Oscillator; 105. Cold air outlet; 106. Drain pipe; 107. Water storage box; 108. Oil fume filter; 109. Oil tray; 110. Cold air chamber; 111. Grease filter; 112. Suction hood; 200. First wind turbine unit; 300. Evaporator; 400. Condenser; 500. Cleaning mechanism; 501. Mounting frame; 502. Water pump; 503. Water inlet pipe; 504. Water outlet pipe; 505. Spray head; 506. Spray hole; 507. Check valve; 600. Compressor unit; 700. Second wind turbine unit; 800. Cold air duct. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example 1: This example discloses a range hood with a built-in cooling fan and a cooling air blowing function, such as... Figures 1-6 As shown, the range hood includes: a main body 100, a casing 101 vertically fixedly installed on top of the main body 100, and a second fan turbine unit 700 fixedly installed inside the casing 101. The main body 100 has a touchscreen control area on the front for easy operation. The casing 101 has a cylindrical flue duct 103 at the bottom, which connects to the output end of the second fan turbine unit 700. The second fan turbine unit 700 is used to draw kitchen fumes into the range hood and discharge them through the flue duct 103. The suction hood 112 is located at the bottom of the body 100. A grease filter screen 111 is provided below the suction hood 112, and an oil receiving tray 109 is provided on one side of the grease filter screen 111. The oil receiving tray 109 can be removed and cleaned. The grease filter screen 111 is tilted towards the oil receiving tray 109. The suction hood 112 is driven by the second fan turbine unit 700 to draw in air. When the flue gas passes through the grease filter screen 111, the grease filter screen 111 filters out large grease molecules, and the filtered grease molecules flow into the oil receiving tray 109.

[0029] Preferably, a guide plate 102 is installed below the suction hood 112. The guide plate 102 is provided in pairs and is inclined towards the oil receiving tray 109. The guide plate 102 is located below the grease filter screen 111. An airflow space is provided between the guide plate 102 and the grease filter screen 111. The guide plate 102 has the function of guiding airflow. The flue gas flows through the periphery of the guide plate 102 to the grease filter screen 111. The guide plate 102 can catch the grease dripping from the grease filter screen 111 and flow into the oil receiving tray 109.

[0030] like Figures 3-5As shown, this embodiment also includes a refrigeration unit, which includes a first fan turbine unit 200, a compressor unit 600, an evaporator 300, and a condenser 400. The compressor unit 600, evaporator 300, and condenser 400 are connected by pipes. The first fan turbine unit 200 and the second fan turbine unit 700 have the same structure, including a motor, an annular fan, and a housing. The motor drives the annular fan to rotate. A cold air chamber 110 is provided inside the body 100. The cold air chamber 110 is located on the left side inside the body. The first fan turbine unit 200 and the evaporator 300 are both located in the cold air chamber 110. The first fan turbine unit 200 is located on one side of the evaporator 300 and near the back of the body 100. A cold air outlet 105 is provided on the front of the body 100, which can blow air onto the human face. In this embodiment, a pair of cold air outlets 105 are symmetrically arranged on the front of the body 100. The refrigeration unit 101 is equipped with a cold air channel 800 that communicates with the cold air outlet 105, and the output end of the cold air chamber 110 is sealed to the input end of the cold air channel 800. The compressor unit 600 and the condenser 400 are located inside the casing 101, with the condenser 400 tilted below the second fan turbine unit 700. The compressor unit 600 is located between the condenser 400 and the inner wall of the casing 101, thus making full use of the internal space of the casing 101. In this embodiment, the first fan turbine unit 200, compressor unit 600, evaporator 300 and condenser 400 in the refrigeration unit have a reasonable structural layout, making full use of the internal space of the range hood and avoiding the problem of the range hood with refrigeration function being too large. In addition, during the operation of the refrigeration unit in this embodiment, the heat generated by the condenser 400 can be extracted by the second fan turbine unit 700 in the first time, avoiding the diffusion of heat in the range hood and ensuring the cooling effect of the range hood.

[0031] Preferably, the cold air chamber 110 is provided with an air inlet, which is located at the air inlet position of the first wind turbine unit 200. The air inlet of the cold air chamber 110 is connected to the outside of the machine body 100, ensuring smooth air intake of the first wind turbine unit 200. An oil fume filter 108 is installed at the air inlet to filter out external oil fume molecules.

[0032] Preferably, a water storage box 107 is provided on the side of the body 100. The water storage box 107 is connected to the cold air chamber 110 through a water pipe. The condensate generated by the evaporator 300 flows into the water storage box 107 through the water pipe. The water storage box 107 can be pulled out to pour out the water. The water storage box 107 can store 3-4L of condensate. The user can empty the water in the water storage box once a week.

[0033] Preferably, the cold air outlet 105 is equipped with a rotatable swing blade 104 to facilitate adjustment of the cold air direction.

[0034] In practice: When the range hood is in use, the compressor unit 600 works, and the cold air generated by the evaporator 300 is blown into the cold air duct 800 through the first fan unit 200, and then blown out from the cold air outlet 105, which lowers the kitchen temperature and makes people more comfortable when cooking. In addition, the heat generated by the condenser 400 is extracted by the second fan unit 700 in time, which prevents the heat from spreading in the range hood.

[0035] Example 2: Figure 3-Figure 6 As shown, based on the structure of Embodiment 1 above, in order to facilitate cleaning of the second wind turbine unit 700 and ensure the air suction effect of the second wind turbine unit 700, this embodiment installs a cleaning mechanism 500 inside the casing 101 for cleaning the second wind turbine unit 700. The cleaning mechanism 500 is located on the side of the air inlet of the second wind turbine unit 700. The cleaning mechanism 500 includes a fixing frame 501 and a water pump 502 fixedly installed inside the fixing frame 501. The fixing frame 501 is fixedly connected to the inner wall of the casing 101. The output end of the water pump 502 is connected to a water outlet pipe 504, and the end of the water outlet pipe 504 is rotatably and sealingly connected to a water spray head 505, which is located inside the air inlet of the second wind turbine unit 700. The input end of the water pump 502 is connected to... There is an inlet pipe 503, one end of which is connected to the water storage box 107. The water pump 502 can extract the condensate in the water storage box 107, which saves water and solves the problem of where to dispose of the condensate. Before turning on the cleaning mechanism 500, it is necessary to ensure that there is enough water in the water storage box 107. The water pump 502 sprays water onto the impeller of the second wind turbine unit 700 through the spray head 505 to clean the impeller and inner wall. The high-temperature airflow generated by the condenser 400 is drawn into the second wind turbine unit 700. The high-temperature airflow can heat the water mist sprayed by the spray head 505, increase the water temperature, and facilitate better melting of the oil stains inside the second wind turbine unit 700 to achieve a better cleaning effect. In addition, a check valve 507 is installed on the inlet pipe 503 to prevent the condensate from flowing back.

[0036] Preferably, the spray head 505 has a plurality of obliquely arranged spray holes 506 evenly distributed on its circumference. The spray holes 506 spray liquid in the form of water mist, which increases the spray area. When the spray holes 506 spray water, they drive the spray head 505 to rotate automatically, so that the spray head 505 can spray the impeller of the second wind turbine unit 700.

[0037] Preferably, the bottom of the second wind turbine unit 700 is connected to a drain pipe 106, and the end of the drain pipe 106 is connected to an oil collection tray 109. The wastewater after cleaning flows into the oil collection tray 109 through the drain pipe 106. After each cleaning, the wastewater in the oil collection tray 109 needs to be poured out. Since it needs to receive wastewater, the size of the oil collection tray 109 in this embodiment is much larger than that of the oil collection trays of range hoods on the market. The water storage capacity of the oil collection tray 109 is about 2L.

[0038] In specific implementation: In this embodiment, when the cleaning mechanism 500 is turned on, the range hood starts simultaneously. The water pump 502 draws out the condensate from the water storage box 107, and then sprays it onto the impeller of the second wind turbine unit 700 through the spray nozzle 505, cleaning the impeller and inner wall. Simultaneously, the high-temperature airflow generated by the condenser 400, as it is drawn into the second wind turbine unit 700, heats the water mist sprayed from the spray nozzle 505, increasing the water temperature and facilitating better melting of the grease inside the second wind turbine unit 700, achieving a better cleaning effect. After cleaning, the wastewater is discharged through… The wastewater flows into the oil collection tray 109 through the drain pipe 106 and is finally poured out. It should be noted that in this embodiment, the cleaning mechanism 500 is turned on after the refrigeration unit has been running for at least 4-5 minutes (such as after cooking), so that the high-temperature airflow generated by the condenser 400 can heat the water mist sprayed from the spray nozzle 505 to achieve a better cleaning effect. In this embodiment, the cleaning mechanism 500 makes full use of the condensate and high-temperature airflow produced by the refrigeration unit to clean the second fan turbine unit 700, which saves resources and facilitates the cleaning of the inside of the range hood.

[0039] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A range hood with a built-in cooling fan and a cooling air blowing function, characterized in that, include: The machine body (100), the casing (101) fixedly installed on the top of the machine body (100) and the second wind turbine unit (700) fixedly installed inside the casing (101), the bottom of the casing (101) is provided with a flue gas duct (103), and the flue gas duct (103) is connected to the output end of the second wind turbine unit (700); A suction hood (112) is located at the bottom of the body (100). A grease filter screen (111) is provided below the suction hood (112), and an oil receiving tray (109) is provided on one side of the grease filter screen (111). The refrigeration unit includes a first wind turbine unit (200), a compressor unit (600), an evaporator (300), and a condenser (400). The first wind turbine unit (200) and the evaporator (300) are located inside the fuselage (100). The first wind turbine unit (200) is located on one side of the evaporator (300). The front of the fuselage (100) is provided with a cold air outlet (105), and the fuselage (100) is provided with a cold air channel (800) connected to the cold air outlet (105). The first wind turbine unit (200) is used to blow the cold air generated by the evaporator (300) into the cold air channel (800). The compressor unit (600) and the condenser (400) are located inside the casing (101), and the condenser (400) is located below the second wind turbine unit (700).

2. A range hood with a built-in cooling fan and cooling air blowing function according to claim 1, characterized in that, The side of the body (100) is provided with a water storage box (107) for storing condensate liquefied on the surface of the evaporator.

3. A range hood with a built-in cooling fan and cooling air blowing function according to claim 2, characterized in that, The casing (101) is equipped with a cleaning mechanism (500) for cleaning the second wind turbine unit (700). The cleaning mechanism (500) is located on the side of the air inlet of the second wind turbine unit (700).

4. A range hood with a built-in cooling fan and cooling air blowing function according to claim 3, characterized in that, The cleaning mechanism (500) includes a fixed frame (501) and a water pump (502) fixedly installed in the fixed frame (501). The output end of the water pump (502) is connected to a water outlet pipe (504), and the end of the water outlet pipe (504) is rotatably connected to a spray head (505). The spray head (505) is located inside the air inlet of the second wind turbine unit (700).

5. A range hood with a built-in cooling fan and cooling air blowing function according to claim 4, characterized in that, The water pump (502) has an inlet pipe (503) connected to its input end. One end of the inlet pipe (503) is connected to the water storage box (107), and a check valve (507) is installed on the inlet pipe (503).

6. A range hood with a built-in cooling fan and cooling air blowing function according to claim 5, characterized in that, The spray head (505) has a plurality of obliquely arranged spray holes (506) evenly arranged on its circumference. When the spray holes (506) spray water, they drive the spray head (505) to rotate automatically.

7. A range hood with a built-in cooling fan and cooling air blowing function according to claim 6, characterized in that, The bottom of the second wind turbine unit (700) is connected to a drain pipe (106), and the end of the drain pipe (106) is connected to an oil receiving pan (109).

8. A range hood with a built-in cooling fan and cooling air blowing function according to claim 7, characterized in that, The body (100) is equipped with a cold air chamber (110), the first wind turbine unit (200) and the evaporator (300) are both located in the cold air chamber (110), and the output end of the cold air chamber (110) is sealed to the input end of the cold air channel (800); an oil fume filter (108) is installed at the air inlet of the cold air chamber (110).

9. A range hood with a built-in cooling fan and cooling air blowing function according to claim 8, characterized in that, A guide plate (102) is installed below the suction hood (112), and the guide plate (102) is located below the grease filter screen (111).

10. A range hood with a built-in cooling fan and cooling air blowing function according to claim 9, characterized in that, The cold air outlet (105) is equipped with a rotatable swing blade (104).

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