Range hood

Abstract

The utility model discloses a range hood which comprises an oil smoke suction assembly and a refrigeration assembly, and the refrigeration assembly comprises a condenser; the refrigeration assembly further comprises a heat discharge pipe used for discharging heat of the condenser. The range hood further comprises a three-way valve and a pipeline communicated with the outside, the three-way valve comprises a hollow valve body, the valve body is provided with a first inlet end, a second inlet end and an outlet end, the first inlet end is connected with the heat discharge pipe, the second inlet end is connected with the pipeline, and the outlet end is communicated with the inside of the kitchen; the first inlet end and the outlet end can be in a closed state at the same time or one is in a closed state. Compared with the prior art, the air conditioner has the advantages that the refrigerating assembly and the air supplementing channel are arranged, the summer refrigerating and cooling function and the fresh air supplementing function can be achieved at the same time, the refrigerating assembly and the air supplementing channel achieve fluid communication through the same port communicated with the outside through the three-way valve, and the problem that too many holes are formed in an outer wall is solved; and the safety of the building is ensured.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to an oil fume extractor. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can quickly extract stove combustion waste and fumes generated during the cooking process and discharge them outdoors, reducing pollution and purifying the air.

[0003] When cooking in the kitchen in summer, the stove or other cooking utensils generate a lot of heat when heating food. The temperature in the kitchen is high, resulting in a poor cooking experience. In order to improve the comfort of users during the cooking process, the refrigeration hood has emerged. It can not only achieve the basic function of absorbing and exhausting oil smoke, but also cool the kitchen environment, improve the cooking environment, and increase the comfort of cooking.

[0004] Common refrigeration hoods are those that add an air conditioning module to the platform of a range hood to achieve a refrigeration function. For example, the Chinese patent application number 202222328590.3 of the applicant discloses an air-conditioning range hood, which includes a casing, a smoke exhaust channel is provided in the casing, a range hood fan is installed in the smoke exhaust channel, a compressor, a condenser and an evaporator are provided in the casing, a heat dissipation channel and an air outlet channel are also provided in the casing, the condenser is provided in the heat dissipation channel, the evaporator is provided in the air outlet channel, the air outlet of the heat dissipation channel is connected to the smoke exhaust channel, and the condenser is provided upstream of the range hood fan along the air flow direction.

[0005] In the above-mentioned refrigeration hood, the condenser is arranged in the oil fume duct. The heat dissipation of the condenser is powered by the fan of the range hood, and the heat is discharged through the exhaust pipe of the range hood. The range hood and the refrigeration work at the same time. The oil fume enters the exhaust pipe after passing through the condenser. The oil fume will pollute and corrode the surface of the condenser. After running for a period of time, the refrigeration efficiency of the system is greatly reduced, and the quality and life of the product are also affected accordingly. In addition, as the air volume of the range hood becomes larger and larger, users usually do not open doors and windows when cooking on windy and rainy days or in low temperature weather, resulting in a series of problems such as negative pressure in the kitchen, poor smoking effect, and sewer odor. To solve this problem, it is usually necessary to set up additional air supply ducts and air supply fans, but this will result in too many holes in the exterior wall, affecting the safety of the building. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a range hood in view of the deficiencies in the above-mentioned prior art, which can simultaneously realize the functions of cooling and cooling in summer and supplying fresh air, and can also avoid affecting the safety of the building.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, including a range hood assembly and a refrigeration assembly, wherein the refrigeration assembly includes a condenser; the characteristics are:

[0008] The refrigeration assembly also includes a heat exhaust pipe for exhausting heat from the condenser;

[0009] The range hood also includes a three-way valve and a pipe connected to the outdoors, the three-way valve includes a hollow valve body, the valve body has a first inlet end, a second inlet end and an outlet end, the first inlet end is connected to the heat exhaust pipe, the second inlet end is connected to the pipe, and the outlet end is connected to the kitchen room; the first inlet end and the outlet end can be in a closed state at the same time or one of them can be in a closed state.

[0010] By setting up refrigeration components and air supply channels, the summer cooling function and the fresh air supply function can be achieved at the same time. In addition, the refrigeration components and the air supply channel use a three-way valve to achieve fluid connection through the same port connected to the outdoors, reducing the problem of too many holes in the exterior wall and ensuring the safety of the building.

[0011] In order to facilitate the opening and closing of the first inlet end and the outlet end, a first valve plate is provided at the first inlet end, and the first valve plate is rotatably arranged in the valve body to open and close the first inlet end;

[0012] A second valve plate is disposed at the outlet end, and the second valve plate is rotatably disposed in the valve body to open and close the outlet end.

[0013] In order to automatically drive the opening and closing of each valve plate, the three-way valve further includes a first driving mechanism for driving the first valve plate to rotate and a second driving mechanism for driving the second valve plate to rotate.

[0014] To facilitate the connection between the outlet end of the three-way valve and the kitchen, the three-way valve is arranged on the kitchen ceiling. An opening is provided on the ceiling, and the outlet end of the three-way valve corresponds to the opening or passes through the opening to enter the kitchen.

[0015] In order to reduce the impurities in the fresh air to affect the user, a filter is arranged at the outlet end of the three-way valve.

[0016] In order to increase the amount of make-up air, an make-up air fan is provided at the outlet end of the three-way valve.

[0017] To prevent backflow of rainwater, etc., a wind and rainproof cap is provided at the outdoor end of the pipeline.

[0018] In order to prevent the airflow in the heat exhaust pipe from flowing back to the condenser, affecting the heat dissipation efficiency of the condenser and thus reducing the refrigeration effect, a check valve is provided on the passage connecting the condenser and the heat exhaust pipe.

[0019] Furthermore, the refrigeration assembly also includes an evaporator;

[0020] The range hood further comprises a first water receiving tray and a second water receiving tray. The first water receiving tray is correspondingly arranged below the evaporator and can receive condensed water from the evaporator. The second water receiving tray is correspondingly arranged below the condenser and can receive condensed water from the condenser.

[0021] This can collect the condensed water from the evaporator and condenser for subsequent treatment or utilization.

[0022] Furthermore, in order to achieve the goal of eliminating the need for draining condensed water, the range hood further includes a first atomizing device capable of atomizing water in the first water receiving tray and a second atomizing device capable of atomizing water in the second water receiving tray.

[0023] In order to further improve the heat dissipation effect of the condenser, the condenser is arranged below the first water receiving tray, and the first water receiving tray is provided with a liquid spreading nozzle capable of spraying the water in the first water receiving tray onto the condenser.

[0024] In order to accelerate the heat exchange with the evaporator and the condenser, the refrigeration assembly also includes an evaporator, a cooling fan capable of absorbing and discharging cold air after heat exchange around the evaporator, and a heat dissipation fan capable of absorbing and discharging heat from the condenser.

[0025] Furthermore, the oil fume suction assembly includes an exhaust pipe for exhausting oil fume, and the exhaust pipe and the heat exhaust pipe are independently arranged. Therefore, the condenser does not need to dissipate heat through the exhaust pipe of the oil fume suction assembly, thereby avoiding the pollution and corrosion of the refrigeration assembly by the oil fume gas, and improving the heat exchange efficiency and service life of the refrigeration assembly.

[0026] Furthermore, the range hood assembly further comprises a fume hood, a fan frame arranged on the fume hood, and a main fan arranged in the fan frame, and the refrigeration assembly is also arranged on the fume hood and located on the side of the fan frame. This makes the overall structure of the range hood more compact, reduces the space occupied in the kitchen,

[0027] Compared with the prior art, the advantages of the utility model are: by setting up a refrigeration component and an air supply channel, it can simultaneously realize the summer cooling and cooling function and the fresh air supply function, and the refrigeration component and the air supply channel use a three-way valve to achieve fluid communication using the same port connected to the outdoors, reducing the problem of too many holes in the exterior wall and ensuring the safety of the building; the condenser adopts an independent heat exhaust channel, and does not dissipate heat through the exhaust pipe of the fume suction component, thereby avoiding the pollution and corrosion of the refrigeration component by the fume gas, and improving the heat exchange efficiency and service life of the refrigeration component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1This is a schematic diagram of the installation of the range hood in the cooling mode according to the embodiment of the utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of a range hood in FIG.

[0030] Figure 3 for Figure 1 A front cross-sectional view of a three-way valve in FIG.

[0031] Figure 4 for Figure 1 A side cross-sectional view of a three-way valve in FIG.

[0032] Figure 5 This is a schematic diagram of the installation of the range hood of the embodiment of the utility model in the fresh air supply mode;

[0033] Figure 6 This is a schematic diagram of the installation of the range hood according to the embodiment of the utility model in a whole machine stop working mode;

[0034] Figure 7 for Figure 5 Schematic diagram of the three-way valve in;

[0035] Figure 8 for Figure 6 Schematic diagram of the three-way valve in . DETAILED DESCRIPTION

[0036] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0037] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0038] See also Figure 1 to Figure 4, a range hood comprises a range hood assembly and a refrigeration assembly.

[0039] The fume extraction assembly includes a fume hood 11 and a fan frame 12 disposed on the fume hood 11. The refrigeration assembly is also disposed on the fume hood 11 and is located on the side of the fan frame 12, usually on the left or right side of the fan frame 12. Figure 1 The right side is shown in the figure. The whole machine has a compact structure and the layout of the refrigeration components is scientific and reasonable. The oil fume suction component also includes a main fan 13 arranged in the fan frame 12. The main fan 13 includes a main fan output end 131, and the main fan output end 131 is connected to a smoke exhaust pipe 14.

[0040] The refrigeration assembly includes a housing 25, in which a compressor 27, an evaporator 21 and a condenser 22 are arranged, wherein the evaporator 21 is arranged above the condenser 22, and the working principles of the compressor 27, the evaporator 21 and the condenser 22 are the same as those of the prior art. A first chamber 252 for accommodating the evaporator 21 and a second chamber 253 for accommodating the condenser 22 are arranged in the housing 25. The first chamber 252 and the second chamber 253 are arranged independently.

[0041] A first water receiving pan 31 is provided below the evaporator 21 for receiving condensed water generated by the evaporator 21, and a second water receiving pan 32 is provided below the condenser 22 for receiving condensed water generated by the condenser 22. The condenser 22 is provided below the first water receiving pan 31, and a liquid dispensing nozzle 5 is provided on the first water receiving pan 31 for spraying water in the first water receiving pan 31 onto the condenser 22.

[0042] The utility model can realize the condensed water without drainage. A first atomizing device 41 is arranged on the first water receiving tray 31 below the evaporator 21 to atomize a part of the condensed water. In addition, a part of the condensed water is sprayed onto the condenser 22 through the liquid dispensing nozzle arranged on the first water receiving tray 31 to dissipate heat from the condenser 22. After part of the condensed water absorbs heat and vaporizes, it is discharged to the outside through the heat exhaust pipe 26. A second atomizing device 42 is arranged on the second water receiving tray 32 below the condenser 22 to improve the heat dissipation efficiency of the condenser 22. At the same time, part of the atomized water is discharged through the heat exhaust pipe 26 (to be described in detail below).

[0043] The first water receiving tray 31 includes a first area 311 and a second area 312. To ensure that a certain amount of water is stored in the second water receiving tray 32 below the condenser 22, to provide a water source for the second atomizing device 42 and to meet the water volume for its normal operation, the first area 311 and the second area 312 are in a stepped structure, the depth of the first area 311 is lower than the depth of the second area 312, the first atomizing device 41 is arranged corresponding to the first area 311, and the liquid dispensing nozzle 5 is arranged corresponding to the second area 312.

[0044] The refrigeration assembly also includes a cooling fan 23 and a heat dissipation fan 24. A cold air outlet 251 is provided on the front side of the housing 25, such as near the top. The housing 25 may also be provided with a first air inlet 254 and a second air inlet 255, wherein the first air inlet 254 is in fluid communication with the first chamber 252, and the second air inlet 255 is in fluid communication with the second chamber 253. The cooling fan 23 may be arranged in the first chamber 252 or in a space in fluid communication with the first chamber 252, and is used to inhale room temperature air outside the housing 25 through the first air inlet 254, and blow out the cold air formed by heat exchange between the inhaled room temperature air and the evaporator 21 from the cold air outlet 251 to achieve refrigeration. The heat dissipation fan 24 may be arranged in the second chamber 253 or in a space in fluid communication with the second chamber 253, and is used to inhale room temperature air outside the housing 25 through the second air inlet 255, and discharge the hot air formed by heat exchange between the inhaled room temperature air and the condenser 22, and dissipate the heat from the condenser 22. In order to ensure the heat dissipation effect of the condenser 22, the heat dissipation fan 24 adopts a multi-blade centrifugal fan with large air volume and high air pressure for heat dissipation.

[0045] In order to facilitate the discharge of heat from the condenser 22, the refrigeration assembly further includes a heat discharge pipe 26 connected to the shell 25 and in fluid communication with the second chamber 253. A check valve 261 is provided at the connection between the heat discharge pipe 26 and the shell 25 (the connection with the second chamber 253), so that hot air can only flow from the second chamber 253 to the heat discharge pipe 26, but cannot flow from the heat discharge pipe 26 to the second chamber 253.

[0046] The exhaust pipe 14 of the oil fume suction component and the heat exhaust pipe 26 of the refrigeration component 2 use independent channels and do not affect each other, ensuring the best oil fume suction effect and refrigeration effect. In addition, the oil fume suction component and the refrigeration component are independent of each other and do not interfere with each other, avoiding the pollution and corrosion of the refrigeration component by oil fume gas, and improving the heat exchange efficiency and service life of the refrigeration component 2.

[0047] The smoke exhaust pipe 14 and the heat exhaust pipe 26 each have a portion located above the kitchen ceiling 100. The portion of the heat exhaust pipe 26 located above the ceiling 100, the end away from the housing 25 is connected to the pipe 29 through the three-way valve 28, the three-way valve 28 is a two-in-one-out valve structure, which includes a hollow valve body 281, the valve body 281 has a first inlet end 2811, a second inlet end 2812 and an outlet end 2813, wherein the first inlet end 2811 is connected to the heat exhaust pipe 26, and the second inlet end 2812 is connected to the pipe 29, and the end of the pipe 29 away from the three-way valve 28 can pass through to the outside to allow fresh air from the outside to enter. An opening 101 is provided on the ceiling 100, and the outlet end 2813 of the three-way valve 28 can correspond to the opening 101 or pass through the opening 101 to enter the kitchen. A filter 286 is provided at the outlet end 2813 to filter the outdoor air supplied and supply clean fresh air.

[0048] A first valve disc 282 is provided at the first inlet end 2811, and the first valve disc 282 is rotatably provided in the valve body 281, and can open and close the first inlet end 2811. A second valve disc 283 is provided at the outlet end 2813, and the second valve disc 283 is rotatably provided in the valve body 281, and can open and close the outlet end 2813. The three-way valve 28 may also include a first driving mechanism 284 and a second driving mechanism 285, the first driving mechanism 284 is used to drive the first valve disc 282 to rotate, and the second driving mechanism 285 is used to drive the second valve disc 283 to rotate. Preferably, the first driving mechanism 284 and the second driving mechanism 285 are both motors. Alternatively, the two valve discs may also share a driving mechanism, which is achieved by providing a transmission mechanism (such as a gear set) between the driving mechanism and the valve discs.

[0049] When replenishing air, the main fan 13 of the fume extraction assembly can be used to suck to form a negative pressure in the kitchen to promote the replenishment of outdoor air. Alternatively, a replenishing air fan 287 can be set at the outlet end 2813 to suck outdoor air.

[0050] In addition, in order to prevent rainwater from flowing back into the pipe 29, a wind and rainproof cap 30 may be provided at the end of the pipe 29 located outdoors.

[0051] The range hood of the utility model can be in the following three modes:

[0052] 1. Cooling mode, see Figure 1 to Figure 3 :

[0053] At this time, the first valve plate 282 is in an open state, and the second valve plate 283 is in a closed state. Arrows indicate the flow path of the air that exchanges heat with the condenser 22 and the flow path of the air that exchanges heat with the evaporator 21 .

[0054] After the compressor 27 is turned on, the refrigerant circulates between the compressor 27, the evaporator 21 and the condenser 22. The cold air after heat exchange with the evaporator 21 is blown out from the cold air outlet 251 into the kitchen to achieve cooling, and the hot air after heat exchange with the condenser 22 is discharged to the outside through the heat exhaust pipe 26. This solves the pain point of high temperature in the kitchen in summer and improves the user's cooking experience.

[0055] In this mode, the fume extraction component can be turned on or off.

[0056] 2. Fresh air supply mode, see Figure 5 and Figure 7 :

[0057] At this time, the first valve plate 282 is in a closed state, and the second valve plate 283 is in an open state, and the arrow indicates the flow path of the fresh air.

[0058] In this mode, the main fan 13 of the range hood assembly can be turned on to form a negative pressure in the kitchen, thereby promoting the replenishment of outdoor fresh air. Alternatively, in the scenario where the replenishment air volume needs to be increased, the replenishment air fan 287 can also be turned on to replenish outdoor fresh air.

[0059] 3. The whole machine stops working mode, see Figure 6 and Figure 8 :

[0060] At this time, the first valve plate 282 and the second valve plate 283 are both in a closed state.

[0061] The utility model can achieve kitchen air supply through the arrangement of the three-way valve 28, and solve a series of problems caused by negative pressure in the kitchen due to excessive air volume of the fume suction component during cooking, such as poor suction effect, insufficient combustion efficiency of the stove, and sewer odor, etc. The utility model can also achieve normal cooking without opening doors and windows in rainy, windy and low temperature weather.

[0062] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A range hood, comprising a range hood assembly and a refrigeration assembly, wherein the refrigeration assembly comprises a condenser (22); characterized in that: The refrigeration assembly also includes a heat dissipation pipe (26) for discharging heat from the condenser (22); The range hood further comprises a three-way valve (28) and a pipeline (29) communicating with the outdoors; the three-way valve (28) comprises a hollow valve body (281); the valve body (281) has a first inlet end (2811), a second inlet end (2812) and an outlet end (2813); the first inlet end (2811) is connected to the heat exhaust pipe (26); the second inlet end (2812) is connected to the pipeline (29); and the outlet end (2813) is communicated with the kitchen room; the first inlet end (2811) and the outlet end (2813) can be in a closed state at the same time or one of them can be in a closed state.

2. The range hood according to claim 1, characterized in that: A first valve plate (282) is disposed at the first inlet end (2811), and the first valve plate (282) is rotatably disposed in the valve body (281) so as to open and close the first inlet end (2811); A second valve plate (283) is disposed at the outlet end (2813), and the second valve plate (283) is rotatably disposed in the valve body (281) to open and close the outlet end (2813).

3. The range hood according to claim 2, characterized in that: The three-way valve (28) further comprises a first driving mechanism (284) for driving the first valve plate (282) to rotate, and a second driving mechanism (285) for driving the second valve plate (283) to rotate.

4. The range hood according to claim 1, characterized in that: The three-way valve (28) is used to be arranged on the ceiling (100) of the kitchen. The ceiling (100) is provided with an opening (101). The outlet end (2813) of the three-way valve (28) corresponds to the opening (101) or passes through the opening (101) to enter the kitchen room.

5. The range hood according to claim 1, characterized in that: A filter screen (286) is provided at the outlet end (2813) of the three-way valve (28).

6. The range hood according to claim 1, characterized in that: An air supply fan (287) is provided at the outlet end (2813) of the three-way valve (28).

7. The range hood according to claim 1, characterized in that: The end of the pipeline (29) located outdoors is provided with a wind and rainproof cap (30).

8. The range hood according to claim 1, characterized in that: A check valve (261) is provided on the passage connecting the condenser (22) and the heat exhaust pipe (26).

9. The range hood according to any one of claims 1 to 8, characterized in that: The refrigeration assembly also includes an evaporator (21); The range hood further comprises a first water receiving tray (31) and a second water receiving tray (32); the first water receiving tray (31) is arranged correspondingly below the evaporator (21) and is capable of receiving condensed water from the evaporator (21); the second water receiving tray (32) is arranged correspondingly below the condenser (22) and is capable of receiving condensed water from the condenser (22).

10. The range hood according to claim 9, characterized in that: The range hood further comprises a first atomizing device (41) capable of atomizing water in the first water receiving tray (31) and a second atomizing device (42) capable of atomizing water in the second water receiving tray (32).

11. The range hood according to claim 9, characterized in that: The condenser (22) is arranged below the first water receiving tray (31), and the first water receiving tray (31) is provided with a liquid dispensing nozzle (5) capable of spraying water in the first water receiving tray (31) onto the condenser (22).

12. The range hood according to any one of claims 1 to 8, characterized in that: The refrigeration component also includes an evaporator (21), a cooling fan (23) capable of absorbing and discharging cold air after heat exchange around the evaporator (21), and a heat dissipation fan (24) capable of absorbing and discharging heat from the condenser (22).

13. The range hood according to any one of claims 1 to 8, characterized in that: The oil fume suction assembly comprises an exhaust pipe (14) for exhausting oil fume, and the exhaust pipe (14) and the heat exhaust pipe (26) are independently arranged.

14. The range hood according to any one of claims 1 to 8, characterized in that: The oil fume suction assembly further comprises a fume hood (11), a fan frame (12) arranged on the fume hood (11), and a main fan (13) arranged in the fan frame (12); the refrigeration assembly is also arranged on the fume hood (11) and located on the side of the fan frame (12).

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