Range hood
By incorporating cooling and exhaust components into the range hood and using a guide vane to control the path of hot air exhaust, the problem of increased kitchen temperature during high-temperature cooking is solved, achieving a combination of fume extraction and cooling, thus improving cooking comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FOSHAN VIOMI ELECTRICAL TECH
- Filing Date
- 2023-10-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing range hoods cannot effectively reduce kitchen temperature in high-temperature cooking environments, affecting the user's cooking experience.
The range hood has built-in cooling and smoke extraction components, combined with an air guide plate design, to achieve independent or combined operation of cooling and smoke extraction functions. The air guide plate controls the path of hot air exhaust to avoid high temperature affecting the kitchen environment.
While effectively removing cooking fumes, it also lowers the kitchen temperature, improves cooking comfort, and adapts to different usage scenarios with varying levels of cooking fumes.
Smart Images
Figure CN119879237B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology
[0002] As people's demands for quality of home life continue to rise, range hoods have become an essential kitchen appliance for every household. Typically, a range hood contains a fan that, during operation, removes the cooking fumes and grease, thus maintaining a clean kitchen environment.
[0003] During the hot summer, the combustion of natural gas during cooking generates high temperatures, and the high-temperature fumes released into the air further increase the ambient temperature. As a result, users will clearly feel the increase in kitchen temperature, which will seriously affect their cooking experience. Therefore, there is an urgent need for a range hood that can remove fumes while preventing a significant increase in kitchen temperature and improving cooking comfort. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the present invention provides a range hood that can reduce the kitchen temperature and improve the user's cooking comfort.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A range hood, comprising:
[0007] The main housing has a flue inside, which has a flue inlet, a flue outlet and an air inlet located between the flue inlet and the flue outlet;
[0008] A smoke exhaust assembly, located inside the flue, is used to draw oil fumes into the flue and exhaust them out.
[0009] A refrigeration component is disposed inside the main housing and outside the flue. The refrigeration component includes a hot end and a cold end. The cold end is used for refrigeration and exhausting cold air outside the main housing, and the hot end is used for heat dissipation.
[0010] An outer cover is installed outside the main housing and forms a heat dissipation channel between the hot end and the outside world.
[0011] The first air guide plate is movably disposed 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] In one embodiment, the first air guide plate is rotatably disposed at the air inlet.
[0013] In one embodiment, the first air guide plate is connected to the main housing on one side of the bottom of the air inlet. The first air guide plate is configured to extend toward the inner wall of the outer cover in the open state to guide the hot air flowing through the heat dissipation channel into the flue through the air inlet.
[0014] In one embodiment, when the first air guide plate is open, the first air guide plate is perpendicular to the outflow direction of the hot airflow in the heat dissipation channel, or the first air guide plate is inclined away from the outflow direction of the hot airflow in the heat dissipation channel.
[0015] In one embodiment, the range hood further includes a cooling fan; a first accommodating space is formed inside the main housing, which communicates with the heat dissipation channel, and the hot end and the cooling fan are disposed in the first accommodating space, and the cooling 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 cooling fan is an exhaust fan, and the hot end is located between the exhaust fan and the cooling channel. The exhaust fan can blow the heat generated by the hot end toward the cooling 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] The bottom of the outer cover has a first opening, which connects the flue inlet and the heat dissipation channel. The second air guide plate extends out of the first opening to separate the flue inlet and the heat dissipation channel.
[0019] In 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 the gap between the guide portion and the outer cover gradually decreases along the airflow direction in the heat dissipation channel.
[0021] In one embodiment, the bottom of the outer cover is provided with at least one second opening, which is connected to the flue inlet so that the exhaust assembly can draw in oil fumes.
[0022] This invention's range hood incorporates both an exhaust component and a cooling component, enabling it to both extract cooking fumes and cool the kitchen environment, thus lowering its temperature. Users can selectively open or close the air inlet to adapt to different usage scenarios. Specifically, when the amount of cooking fumes is low, the user can open the air inlet, allowing the hot air generated by the cooling component to be directly exhausted from the range hood without entering the kitchen environment. When the amount of cooking fumes is high, the user can close the air inlet, allowing the hot air generated by the cooling component to be exhausted from the range hood and then drawn back into the exhaust component along with the cooking fumes, thus preventing the heat dissipation process from affecting the fume extraction effect. Attached Figure Description
[0023] Figure 1 A schematic diagram of the structure of a range hood according to an embodiment of the present invention is shown;
[0024] Figure 2 An exploded view of the structure of a range hood according to an embodiment of the present invention is shown;
[0025] Figure 3 A cross-sectional view of a range hood in an exploded 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 This diagram illustrates a first usage state of the range hood according to an embodiment of the present invention.
[0028] Figure 6 This diagram illustrates a second usage state of the range hood according to an embodiment of the present invention.
[0029] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0030] In this invention, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0031] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0035] In real life, kitchens are typically poorly ventilated environments. When users cook, the stove generates high-temperature gases, and the food itself produces steam and fumes, all of which raise the kitchen temperature and negatively impact the cooking experience. Therefore, this application provides a range hood that, in addition to its standard fume extraction function, provides a cooling effect similar to an air conditioner, keeping the kitchen environment in a relatively cool and comfortable temperature range.
[0036] Figure 1 A schematic diagram of the structure of a range hood according to an embodiment of this application is shown; Figure 2 An exploded view of the structure of a range hood according to an embodiment of the application is shown; Figure 3 A cross-sectional view of a range hood in an exploded state, according to an embodiment of this application, is shown.
[0037] See Figures 1-3This application provides a range hood, including a main housing 10, a smoke exhaust assembly 20, a cooling assembly 30, an outer cover 40, and a first air guide plate 50. The smoke exhaust assembly 20 and the cooling assembly 30 are installed inside the main housing 10, and the outer cover 40 covers the outside of the main housing 10. The smoke exhaust assembly 20 can draw in the cooking fumes generated during cooking from outside the outer cover 40, thereby purifying the kitchen fumes; the cooling assembly 30 is used for cooling to lower the temperature of the kitchen environment, 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, in combination Figure 3 and Figure 4 As shown, a flue (not shown) is formed inside the main housing 10, which has a flue inlet 101 and a flue outlet 102. The smoke exhaust assembly 20 is disposed in the flue and is used to draw in oil fumes from the flue inlet 101. After entering the flue, the oil fumes are discharged from the flue outlet 102 under the action of the smoke exhaust assembly 20.
[0040] The refrigeration component 30 is located inside the main housing 10 and outside the flue. The refrigeration component 30 and the exhaust component 20 can operate independently without affecting each other. For example, the refrigeration component 30 can operate alone to provide air cooling, while the exhaust component 20 does not operate; or, the exhaust component 20 can operate alone to provide fume extraction, while the refrigeration component 30 does not operate; or, the exhaust component 20 and the refrigeration component 30 can operate simultaneously.
[0041] The refrigeration component 30 includes a hot end 31 and a cold end (not shown). The cold end is used for cooling and exhausting cold air outside the main housing 10, while the hot end 31 is used for heat dissipation. The outer cover 40 covers the main housing 10 and forms a heat dissipation channel M between the outer cover 40 and the main housing 10, connecting the hot end 31 with the outside. During the operation of the refrigeration component 30, the hot air generated during the heat dissipation process of the hot end can be exhausted from the heat dissipation channel M to the outside of the outer cover 40.
[0042] In one embodiment, the main housing 10 further includes an air inlet 103 located between the flue inlet 101 and the flue outlet 102. The first air guide plate 50 is movably disposed on the air inlet 103 to selectively open or close the air inlet 103, thereby changing the communication state between the heat dissipation channel M and the flue.
[0043] It is understood that the refrigeration component 30 can employ either an air conditioning-style refrigeration method or a semiconductor refrigeration method; this application makes no limitation on this. For example, when the refrigeration component 30 employs an air conditioning-style refrigeration method, the cold end is the evaporator, and the hot end is the condenser. During refrigeration, the compressor compresses the refrigerant into a liquid and sends it to the evaporator. Hot air comes into contact with the evaporator, and the liquid refrigerant is heated and turns into a gaseous state, carrying away ambient heat and entering the condenser, achieving rapid heat release. When the refrigeration component 30 employs a semiconductor refrigeration method, free electrons and holes move from the cold end of the thermopile to the hot end under the influence of an external electric field. At the cold end of the thermopile, heat is absorbed through the heat exchanger, while electron-hole pairs are generated simultaneously; at the hot end of the thermopile, electron-hole pair recombination occurs, while heat is dissipated through the heat exchanger.
[0044] like Figure 5 The diagram shows a first usage state of the range hood according to an embodiment of this application. In this state, the first air guide plate 50 blocks the air inlet 103, so that the air inlet 103 is closed. The hot air generated during the heat dissipation process of the hot end can flow out of the outer cover 40 along the heat dissipation channel M. Figure 6 The diagram shows a second usage state of the range hood according to an embodiment of this application. In this state, the first air guide plate 50 no longer blocks the air inlet 103, and the air inlet 103 is in an open state. When the exhaust assembly 20 is running, the hot air generated during the heat dissipation process of the hot end can be drawn out from the air inlet 103 by the exhaust assembly 20 and discharged outside the flue through the flue outlet 102.
[0045] This embodiment of the range hood is equipped with both an exhaust component 20 and a cooling component 30. It can both extract cooking fumes and cool the kitchen environment to lower the temperature. Users can selectively open or close the air inlet 103 according to their needs, adapting to different usage scenarios. For example, when the amount of cooking fumes is small, the user can open the air inlet 103, allowing the hot air generated by the cooling component 30 to be directly exhausted from the range hood without entering the kitchen environment. When the amount of cooking fumes is large, the user can close the air inlet 103, allowing the hot air generated by the cooling component 30 to be exhausted from the range hood and then drawn into the exhaust component 20 along with the cooking fumes, thus avoiding the heat dissipation process affecting the fume extraction effect.
[0046] In one embodiment, a first air guide plate 50 is rotatably disposed on the air inlet 103 of the main housing 10. The first air guide plate 50 can rotate relative to the air inlet 103 as needed to selectively block the air inlet 103, thereby changing the exhaust path of the hot airflow 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 open and close in the vertical direction. It is understood 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, which can also realize the rotation of the first air guide plate 50. Alternatively, the first air guide plate 50 can be slidably disposed 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 the main housing 10 on one side located at the bottom of the air inlet 103. The first air guide plate 50 is configured to extend toward the inner wall of the outer cover 40 in the open state to guide the hot air flowing through the heat dissipation channel M through the air inlet 103 into the flue. Thus, when the hot air generated during the heat dissipation process flows through the heat dissipation channel M and passes through the first air guide plate 50, it can be guided along the surface of the first air guide plate 50 to the air inlet 103, and then discharged outside the flue outlet 102 by the smoke exhaust assembly 20.
[0048] The first air guide plate 50 can rotate relative to the main housing 10 to the first limit position of opening (e.g., Figure 6 (as shown in the image), and the second extreme position that completely blocks the air intake 103 (as shown in the image). Figure 5 (as shown in the image). Figure 6 As shown, exemplarily, when the first air guide plate 50 is in the open state and located at the first extreme position, the first air guide plate 50 is perpendicular to the outflow direction of the hot airflow in the heat dissipation channel M, or the first air guide plate 50 is inclined away from the outflow direction of the hot airflow in the heat dissipation channel M, that is, inclined upwards. In this way, the outflowing hot airflow can be better guided.
[0049] like Figure 3 , 4 As shown, in one embodiment, the range hood further includes a cooling fan 60. A first receiving space N, communicating with a heat dissipation channel M, is formed inside the main housing 10. The hot end 31 and the cooling fan 60 are located within the first receiving space N. The cooling fan 60 is used to exhaust the heat generated by the hot end 31 from the first receiving space N to the heat dissipation channel M, thereby accelerating the air circulation within the heat dissipation channel M and improving the heat dissipation effect. It is understood that, depending on the installation position of the cooling fan 60, it can be either an exhaust fan or a ventilation fan.
[0050] In this embodiment, the cooling fan 60 is an exhaust fan, and the hot end 31 is located between the exhaust fan and the heat dissipation channel M. The exhaust fan can blow the heat generated by the hot end 31 towards the heat dissipation channel M. In other embodiments, when the cooling fan 60 is an exhaust fan, the cooling 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 to 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 housing 10 near the flue inlet 101, and the bottom of the outer cover 40 is provided with a first opening 401, the first opening 401 connecting the flue inlet 101 and the heat dissipation channel M, and the second air guide plate 70 extends out of the first opening 401 to separate the flue inlet 101 and the heat dissipation channel M.
[0052] By setting a second air guide plate 70 inside the first opening 401, the flue inlet 101 can be separated from the heat dissipation channel M, preventing oil fumes 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 one 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 oil fumes in the kitchen 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 cooling component 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 operate the second air guide plate 70 to open the first opening 401. The hot air generated by the cooling component 30 can be discharged from the range hood through the first opening 401 along with the second air guide plate 70, and then drawn into the exhaust component 20 along with the oil fumes, avoiding the heat dissipation process from affecting the oil 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. Along the airflow direction within the heat dissipation channel M, the gap between the guide portion 104 and the outer cover 40 gradually decreases. For example, the guide portion 104 is inclined toward the outer cover 40, so that the heat dissipation channel M forms a constricted structure, and hot airflow can converge along the guide portion 104 to the first opening 401.
[0055] In addition, the bottom of the outer cover 40 may also have at least one second opening 402, which connects to 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 remove the oil fumes more quickly. For example, second openings 402 can be provided on multiple edges of the bottom of the outer cover 40, so that the negative pressure exerted by the exhaust assembly 20 on the flue inlet 101 can collect fumes from all directions, improving the oil fume extraction effect.
[0056] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A range hood, characterized in that, include: The main housing (10) has a flue inside, the flue having 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 assembly (20) is provided in the flue and is used to draw oil fumes into the flue and exhaust them out. A refrigeration assembly (30) is disposed inside the main housing (10) and located outside the flue. The refrigeration assembly (30) includes a hot end (31) and a cold end. The cold end is used for refrigeration and exhausting cold air outside the main housing (10). The hot end (31) is used for heat dissipation. The outer cover (40) is placed outside the main housing (10) and forms a heat dissipation channel (M) between the main housing (10) and the outside. The first air guide plate (50) is movably disposed at the air inlet (103) to selectively open or close the air inlet (103) and change the communication state between the heat dissipation channel (M) and the flue. The range hood also includes a second air guide plate (70) connected to the main housing (10) near the flue inlet (101). The outer cover (40) has a first opening (401) at the bottom. The first opening (401) connects the flue inlet (101) and the heat dissipation channel (M). The second air guide plate (70) extends out of the first opening (401) to separate the flue inlet (101) and the heat dissipation channel (M). The second air guide plate (70) is rotatably connected to the main housing (10) to selectively open or close the heat dissipation channel (M).
2. The range hood according to claim 1, characterized in that, The first air guide plate (50) is rotatably disposed at the air inlet (103).
3. The range hood according to claim 2, characterized in that, The first air guide plate (50) is connected to the main housing (10) on one side of the bottom of the air inlet (103). The first air guide plate (50) is configured to extend toward the inner wall of the outer cover (40) in the open state to guide the hot air flowing through the heat dissipation channel (M) into the flue through the air inlet (103).
4. The range hood according to claim 2, characterized in that, When the first air guide plate (50) is open, the first air guide plate (50) is perpendicular to the outflow direction of the hot airflow of the heat dissipation channel (M), or the first air guide plate (50) is inclined away from the outflow direction of the hot airflow of the heat dissipation channel (M).
5. The range hood according to claim 1, characterized in that, The range hood also includes a cooling fan (60); a first accommodating space (N) is formed inside the main housing (10) that connects to the heat dissipation channel (M), the hot end (31) and the cooling fan (60) are located in the first accommodating space (N), and the cooling fan (60) is used to discharge the 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 cooling fan (60) is an exhaust fan, and the hot end (31) is located 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 claim 1, 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 the gap between the guide portion (104) and the outer cover (40) gradually decreases along the airflow direction in the heat dissipation channel (M).
8. The range hood according to claim 1, characterized in that, The bottom of the outer cover (40) is provided with at least one second opening (402), which is connected to the flue inlet (101) so that the exhaust assembly (20) can draw in oil fumes.