Range hood

Abstract

The invention discloses a range hood, which comprises: a main shell, a flue is formed in the main shell, and the flue is provided with a flue inlet, a flue outlet and an air inlet located between the flue inlet and the flue outlet; the smoke exhaust assembly is arranged in the flue and used for sucking oil smoke into the flue and exhausting the oil smoke; the refrigeration assembly is arranged in the main shell and located outside the flue, the refrigeration assembly comprises a hot end and a cold end, the cold end is used for refrigeration and discharging cold air out of the main shell, and the hot end is used for heat dissipation; the outer cover is arranged outside the main shell in a covering mode, and a heat dissipation channel communicating the hot end with the outside is formed between the outer cover and the main shell; and the first air guide plate is movably arranged at the air inlet so as to selectively open or close the air inlet and change the communication state of the heat dissipation channel and the flue. According to the range hood, oil fume suction can be achieved, refrigeration can be conducted on the kitchen environment, and meanwhile a user can selectively open or close the air inlet in the range hood according to actual requirements so as to adapt to different use scenes.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of kitchen appliances, and in particular to a range hood. Background Art

[0002] As people's requirements for home life quality continue to improve, range hoods have become a necessary kitchen appliance for families. Usually, a range hood is equipped with a fan. When the range hood is in operation, the fan inside can absorb the fumes generated during cooking, thereby maintaining a clean kitchen environment.

[0003] In the hot summer, during the cooking process, the combustion of natural gas will generate high temperatures, and the high-temperature oil smoke emitted into the air will also aggravate the increase in ambient temperature. Therefore, users will obviously feel the increase in kitchen temperature, which will seriously affect the user's cooking experience. Therefore, there is an urgent need to provide a range hood that can achieve the oil fume suction function while avoiding a significant increase in kitchen temperature and improving cooking comfort. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a range hood that can lower the temperature in the kitchen and improve the cooking comfort of users.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A range hood, comprising:

[0007] A main shell, wherein a flue is formed inside the main shell, and the flue has a flue inlet, a flue outlet, and an air inlet located between the flue inlet and the flue outlet;

[0008] a smoke exhaust component, disposed in the flue, for sucking the oil smoke into the flue and exhausting it;

[0009] a refrigeration assembly, disposed in the main housing and outside the flue, the refrigeration assembly comprising a hot end and a cold end, the cold end being used for cooling and discharging cold air out of the main housing, and the hot end being used for heat dissipation;

[0010] An outer cover is provided outside the main housing and forms a heat dissipation channel between the outer cover and the main housing to connect the hot end with the outside world;

[0011] The first air guide plate is movably provided at the air inlet to selectively open or close the air inlet and change the connection state between the heat dissipation channel and the flue.

[0012] As one embodiment, the first air guide plate is rotatably provided at the air inlet.

[0013] As one embodiment, the first air guide plate is connected to one side of the main shell at the bottom of the air inlet, and the first air guide plate is configured to extend toward the inner wall of the outer cover in an open state to guide the hot air flowing through the heat dissipation channel through the air inlet into the flue.

[0014] As one embodiment, when the first air guide plate is open, the first air guide plate is perpendicular to the outflow direction of the hot air flow of the heat dissipation channel, or the first air guide plate is tilted away from the outflow direction of the hot air flow of the heat dissipation channel.

[0015] As one embodiment, the range hood also includes a heat dissipation fan; a first accommodating space connected to the heat dissipation channel is formed inside the main shell, the hot end and the heat dissipation fan are arranged in the first accommodating space, and the heat dissipation fan is used to discharge the heat generated by the hot end from the first accommodating space to the heat dissipation channel.

[0016] In one embodiment, the heat dissipation fan is an exhaust fan, the hot end is arranged between the exhaust fan and the heat dissipation channel, and the exhaust fan can blow the heat generated by the hot end to the heat dissipation channel.

[0017] As one embodiment, the range hood further includes a second air guide plate connected to the main housing near the flue inlet;

[0018] A first opening is formed at the bottom of the outer cover, connecting the flue inlet and the heat dissipation channel, and the second air guide plate partially extends out of the first opening to separate the flue inlet and the heat dissipation channel.

[0019] As one embodiment, the second air guide plate is rotatably connected to the main housing to selectively open or close the heat dissipation channel.

[0020] In one embodiment, the main housing has a guide portion located between the first air guide plate and the second air guide plate, and a gap between the guide portion and the outer cover gradually decreases along the airflow direction in the heat dissipation channel.

[0021] As one embodiment, at least one second opening is provided at the bottom of the outer cover, and the second opening is connected to the flue inlet so that the smoke exhaust component can inhale the oil smoke.

[0022] The range hood of the present invention is equipped with both a fume exhaust assembly and a refrigeration assembly, which can not only extract oil fumes but also cool the kitchen environment to reduce the temperature. Furthermore, the user can selectively open or close the air intake of the range hood according to actual needs to adapt to different usage scenarios. Specifically, when the amount of kitchen fumes is light, the user can open the air intake, and the hot air generated by the refrigeration assembly can be directly discharged from the range hood without entering the kitchen environment. When the amount of kitchen fumes is heavy, the user can close the air intake, and the hot air generated by the refrigeration assembly can be discharged from the range hood and then drawn into the fume exhaust assembly along with the oil fumes, preventing the heat dissipation process from affecting the fume extraction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a range hood according to an embodiment of the present invention is shown;

[0024] Figure 2 A schematic diagram of the structure decomposition of a range hood according to an embodiment of the present invention is shown;

[0025] Figure 3 A schematic cross-sectional view of a range hood in a disassembled state according to an embodiment of the present invention is shown;

[0026] Figure 4 A cross-sectional view of a range hood according to an embodiment of the present invention is shown;

[0027] Figure 5 A schematic diagram showing a first usage state of the range hood according to an embodiment of the present invention is shown;

[0028] Figure 6 A schematic diagram showing a second usage state of the range hood according to an embodiment of the present invention is shown;

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0030] In the present invention, the terms "disposed," "provided with," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0031] The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0033] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] In real life, kitchens are often poorly ventilated. When a user is cooking in the kitchen, the stove generates high-temperature gases, and the cooking process also generates high-temperature steam and oil smoke. These gases can cause the kitchen temperature to rise, seriously affecting the user's cooking experience. Therefore, the present application provides a range hood that, in addition to achieving conventional oil fume extraction, can also provide a cooling effect similar to that of an air conditioner, thereby keeping the kitchen environment relatively cool and refreshing.

[0036] Figure 1 A schematic structural diagram of a range hood according to an embodiment of the present application is shown; Figure 2 A schematic diagram of the structure decomposition of a range hood according to an embodiment of the application is shown; Figure 3 A schematic cross-sectional structural diagram of a range hood in a disassembled state according to an embodiment of the present application is shown.

[0037] See Figures 1 to 3The present invention provides a range hood comprising a main housing 10, a fume exhaust assembly 20, a refrigeration assembly 30, an outer cover 40, and a first air guide plate 50. The fume exhaust assembly 20 and the refrigeration assembly 30 are mounted within the main housing 10, while the outer cover 40 is disposed outside the main housing 10. The fume exhaust assembly 20 draws in cooking fumes from outside the outer cover 40, thereby purifying kitchen fumes. The refrigeration assembly 30 cools the kitchen environment, thereby achieving a cooling effect.

[0038] Figure 4 A cross-sectional view of a range hood according to an embodiment of the present invention is shown.

[0039] Specifically, combined Figure 3 and Figure 4 As shown, a flue (not shown) is formed inside the main housing 10, and the flue has a flue inlet 101 and a flue outlet 102. A smoke exhaust assembly 20 is provided in the flue for drawing in oil smoke from the flue inlet 101. After the oil smoke enters the flue, it is discharged from the flue outlet 102 under the action of the smoke exhaust assembly 20.

[0040] The cooling assembly 30 is located within the main housing 10 and outside the flue. The cooling assembly 30 and the smoke exhaust assembly 20 can operate independently without interfering with each other. For example, the cooling assembly 30 can operate independently to provide air cooling while the smoke exhaust assembly 20 is inoperative. Alternatively, the smoke exhaust assembly 20 can operate independently to provide fume extraction while the cooling assembly 30 is inoperative. Alternatively, the smoke exhaust assembly 20 and the cooling assembly 30 can operate simultaneously.

[0041] The cooling assembly 30 includes a hot end 31 and a cold end (not shown). The cold end is used for cooling and dissipating cold air out of the main housing 10, while the hot end 31 is used for dissipating heat. An outer cover 40 is mounted on the outside of the main housing 10 and forms a heat dissipation channel M between the hot end 31 and the outside world. During operation of the cooling assembly 30, hot air generated by the hot end is discharged through the heat dissipation channel M to the outside of the outer cover 40.

[0042] In one embodiment, the main shell 10 also includes an air inlet 103 located between the flue inlet 101 and the flue outlet 102, and the first air guide plate 50 can be movably provided at the air inlet 103 to selectively open or close the air inlet 103, thereby changing the connection state between the heat dissipation channel M and the flue.

[0043] It is understandable that the refrigeration component 30 can adopt an air-conditioning refrigeration method or a semiconductor refrigeration method, and this application does not impose any restrictions. For example, when the refrigeration component 30 adopts an air-conditioning refrigeration method, the cold end is the evaporator and the hot end is the condenser. During refrigeration, the compressor can compress the refrigerant into a liquid and send it into the evaporator. The hot air contacts the evaporator, and the liquid refrigerant is heated to become a gas, taking away the ambient heat and entering the condenser to achieve rapid heat release. When the refrigeration component 30 adopts a semiconductor refrigeration method, the free electrons and holes leave the cold end of the thermopile and move to the hot end under the action of the external electric field. At the cold end of the thermopile, heat is absorbed through the heat exchanger and electron-hole pairs are generated. At the hot end of the thermopile, electron-hole pairs recombine and dissipate heat through the heat exchanger.

[0044] like Figure 5 FIG. 4 is a schematic diagram showing a first usage state of the range hood according to an embodiment of the present application. In this state, the first air guide plate 50 blocks the air inlet 103, so that the air inlet 103 is in a closed state. Hot air generated during heat dissipation at the hot end can flow out of the outer cover 40 along the heat dissipation channel M. Figure 6 A schematic diagram of the second usage state of the range hood of an embodiment of the present application is shown. In this state, the first air guide plate 50 no longer blocks the air inlet 103, but makes the air inlet 103 in an open state. When the smoke exhaust component 20 is running, the hot air generated during the heat dissipation process of the hot end can be drawn out of the air inlet 103 by the smoke exhaust component 20 and discharged out of the flue through the flue outlet 102.

[0045] The range hood of this embodiment is equipped with both a fume exhaust assembly 20 and a refrigeration assembly 30, which can both extract oil fumes and cool the kitchen environment to reduce the temperature. At the same time, the user can selectively open or close the air inlet 103 in the range hood according to actual needs to adapt to different usage scenarios. For example, when the amount of oil fumes in the kitchen is small, the user can open the air inlet 103, and the hot air generated by the refrigeration assembly 30 can be directly discharged from the range hood without entering the kitchen environment. When the amount of oil fumes in the kitchen is large, the user can close the air inlet 103, and the hot air generated by the refrigeration assembly 30 can be discharged from the range hood and then drawn into the fume exhaust assembly 20 along with the oil fumes, preventing the heat dissipation process from affecting the oil fume extraction effect.

[0046] In one embodiment, the first air guide plate 50 is rotatably provided at the air inlet 103 of the main housing 10. The first air guide plate 50 can be rotated relative to the air inlet 103 as needed to selectively block the air inlet 103, thereby changing the exhaust path of the hot air flow in the heat dissipation channel M. Exemplarily, the rotation axis of the first air guide plate 50 extends along the width direction of the main housing 10, so that the first air guide plate 50 can be opened and closed in the up and down directions. It is understandable that in other embodiments, the rotation axis of the first air guide plate 50 can also extend in the vertical direction, or extend obliquely relative to the vertical direction, so as to achieve the rotation of the first air guide plate 50. Alternatively, the first air guide plate 50 can also be provided to be slidably provided on one side of the air inlet 103 of the main housing 10, so that the first air guide plate 50 can slide to block the air inlet 103 or slide to open the air inlet 103.

[0047] In one embodiment, a first air guide plate 50 is connected to one side of the main housing 10 at the bottom of the air inlet 103. When in an open position, the first air guide plate 50 is configured to extend toward the inner wall of the outer cover 40 to guide the hot air flowing through the heat dissipation channel M through the air inlet 103 and into the flue. Thus, when the hot air generated during the heat dissipation process at the hot end flows through the heat dissipation channel M and passes through the first air guide plate 50, it is guided along the surface of the first air guide plate 50 to the air inlet 103, and then discharged out of the flue outlet 102 by the smoke exhaust assembly 20.

[0048] The first air guide plate 50 can be rotated relative to the main housing 10 to a first extreme position (eg, Figure 6 As shown in the state), and the second extreme position of completely blocking the air inlet 103 (as shown in the state Figure 5 status shown). Figure 6 As shown, for example, when the first air guide plate 50 is open and located at the first extreme position, the first air guide plate 50 is perpendicular to the outflow direction of the hot air flow from the heat dissipation channel M. Alternatively, the first air guide plate 50 is tilted away from the outflow direction of the hot air flow from the heat dissipation channel M, that is, tilted upward. In this way, the outflowing hot air flow can be better guided.

[0049] like Figure 3 、 4 As shown, in one embodiment, the range hood further includes a heat dissipation fan 60. A first accommodating space N communicating with a heat dissipation channel M is formed within the main housing 10. The hot end 31 and the heat dissipation fan 60 are disposed within the first accommodating space N. The heat dissipation fan 60 is configured to discharge heat generated by the hot end 31 from the first accommodating space N to the heat dissipation channel M, thereby accelerating air circulation within the heat dissipation channel M and improving heat dissipation. It is understood that, depending on the installation location of the heat dissipation fan 60, the heat dissipation fan 60 can be either an extraction fan or an exhaust fan.

[0050] In this embodiment, the heat dissipation fan 60 is an exhaust fan, and the hot end 31 is disposed between the exhaust fan and the heat dissipation channel M. The exhaust fan can blow the heat generated by the hot end 31 toward the heat dissipation channel M. In other embodiments, when the heat dissipation fan 60 is an exhaust fan, the heat dissipation fan 60 is located between the hot end 31 and the heat dissipation channel M, and can extract the heat dissipated by the hot end 31 into the heat dissipation channel M.

[0051] In one embodiment, the range hood may further include a second air guide plate 70 connected to the main shell 10 near the flue inlet 101, a first opening 401 is provided at the bottom of the outer cover 40, the first opening 401 connects the flue inlet 101 and the heat dissipation channel M, and the second air guide plate 70 partially extends out of the first opening 401 to separate the flue inlet 101 and the heat dissipation channel M.

[0052] By arranging a second air guide plate 70 in the first opening 401, the flue inlet 101 can be separated from the heat dissipation channel M, thereby preventing oil smoke from directly entering the heat dissipation channel M from the flue inlet 101, and also preventing hot air from directly entering the flue inlet 101 from the heat dissipation channel M at the first opening 401.

[0053] In an optional embodiment, the second air guide plate 70 is rotatably connected to the main housing 10 to selectively open or close the heat dissipation channel M. For example, when the amount of kitchen fumes is small, the user can open the air inlet 103 and operate the second air guide plate 70 to close the first opening 401. The hot air generated by the refrigeration assembly 30 can be directly discharged from the range hood without entering the kitchen environment. When the amount of kitchen fumes is large, the user can close the air inlet 103 and operate the second air guide plate 70 to open the first opening 401. The hot air generated by the refrigeration assembly 30 can be discharged from the range hood through the first opening 401 along the second air guide plate 70, and then be sucked into the exhaust assembly 20 along with the fumes, thereby preventing the heat dissipation process from affecting the fume extraction effect.

[0054] In one embodiment, the main housing 10 has a guide portion 104 located between the first air guide plate 50 and the second air guide plate 70. The gap between the guide portion 104 and the outer cover 40 gradually decreases along the direction of airflow within the heat dissipation channel M. For example, the guide portion 104 is tilted toward the outer cover 40, forming a constricted structure in the heat dissipation channel M, allowing hot air to flow along the guide portion 104 and converge into the first opening 401.

[0055] In addition, at least one second opening 402 may be formed at the bottom of the outer cover 40. This second opening 402 communicates with the flue inlet 101 and serves as an intake for oil fumes, allowing the exhaust assembly 20 to draw in the oil fumes. When multiple second openings 402 are provided, the exhaust assembly 20 can more quickly draw away the oil fumes. For example, second openings 402 may be provided at multiple edges of the bottom of the outer cover 40. This allows the negative pressure exerted by the exhaust assembly 20 on the flue inlet 101 to collect smoke from all directions, thereby improving the extraction efficiency of the oil fumes.

[0056] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A range hood, characterized in that: include: A main shell (10), wherein a flue is formed inside the main shell (10), and the flue has a flue inlet (101), a flue outlet (102), and an air inlet (103) located between the flue inlet (101) and the flue outlet (102); A smoke exhaust component (20) is arranged in the smoke duct and is used to suck the oil smoke into the smoke duct and exhaust it; A refrigeration component (30) is arranged in the main shell (10) and outside the flue, the refrigeration component (30) comprises a hot end (31) and a cold end, the cold end is used for cooling and discharging cold air outside the main shell (10), and the hot end (31) is used for heat dissipation; An outer cover (40) is disposed outside the main housing (10) and forms a heat dissipation channel (M) between the outer cover (40) and the main housing (10) for connecting the hot end (31) with the outside world; The first air guide plate (50) is movably arranged at the air inlet (103) to selectively open or close the air inlet (103) and change the connection state between the heat dissipation channel (M) and the smoke duct.

2. The range hood according to claim 1, characterized in that: The first air guide plate (50) is rotatably arranged on the air inlet (103).

3. The range hood according to claim 2, characterized in that: The first air guide plate (50) is connected to one side of the main shell (10) at the bottom of the air inlet (103), and the first air guide plate (50) is configured to extend toward the inner wall of the outer cover (40) in an open state to guide the hot air flowing through the heat dissipation channel (M) through the air inlet (103) into the flue.

4. The range hood according to claim 2, characterized in that: When the first air guide plate (50) is in an open state, the first air guide plate (50) is perpendicular to the outflow direction of the hot air flow of the heat dissipation channel (M), or the first air guide plate (50) is arranged to be inclined away from the outflow direction of the hot air flow of the heat dissipation channel (M).

5. The range hood according to claim 1, characterized in that: The range hood further comprises a heat dissipation fan (60); a first accommodating space (N) connected to the heat dissipation channel (M) is formed inside the main shell (10); the hot end (31) and the heat dissipation fan (60) are arranged in the first accommodating space (N); the heat dissipation fan (60) is used to discharge heat generated by the hot end (31) from the first accommodating space (N) to the heat dissipation channel (M).

6. The range hood according to claim 5, characterized in that: The heat dissipation fan (60) is an exhaust fan, and the hot end (31) is arranged between the exhaust fan and the heat dissipation channel (M). The exhaust fan can blow the heat generated by the hot end (31) toward the heat dissipation channel (M).

7. The range hood according to any one of claims 1 to 6, characterized in that: The range hood further comprises a second air guide plate (70) connected to the main housing (10) and close to the flue inlet (101); A first opening (401) is provided at the bottom of the outer cover (40), the first opening (401) being connected to the flue inlet (101) and the heat dissipation channel (M), and the second air guide plate (70) partially extends out of the first opening (401) to separate the flue inlet (101) and the heat dissipation channel (M).

8. The range hood according to claim 7, characterized in that: The second air guide plate (70) is rotatably connected to the main housing (10) to selectively open or close the heat dissipation channel (M).

9. The range hood according to claim 7, characterized in that: The main housing (10) has a guide portion (104) located between the first air guide plate (50) and the second air guide plate (70), and along the airflow direction in the heat dissipation channel (M), the gap between the guide portion (104) and the outer cover (40) gradually decreases.

10. The range hood according to claim 7, characterized in that: At least one second opening (402) is provided at the bottom of the outer cover (40), and the second opening (402) is connected to the flue inlet (101) so as to allow the smoke exhaust component (20) to inhale oil smoke.

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