A range hood

Abstract

This invention provides a range hood, comprising: a first housing housing with a built-in exhaust fan, and a smoke inlet and an exhaust section thereon; and a refrigeration device disposed above the exhaust fan, comprising a refrigeration fan and a cooling fan, wherein the cooling fan is connected to the first housing housing and the refrigeration fan is adapted to directionally exhaust cold air. By placing the refrigeration fan and cooling fan above the exhaust fan, the range hood's height can be increased, shortening the distance between the smoke inlet and the stove, thus improving smoke extraction performance. Furthermore, it reduces the number of structures along the width of the range hood, reducing the required width space and avoiding width-direction limitations on the exhaust fan. This effectively overcomes the shortcomings of existing refrigerated range hoods, such as difficulty in adjusting the exhaust fan size and high width-direction installation space requirements.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, and specifically to a range hood. Background Technology

[0002] In the kitchen, a lot of heat is generated during cooking, making it unbearably hot for users in the summer. There is an urgent need for cooling devices to cool down the kitchen. Now, in addition to adding kitchen air conditioners, range hoods that can also cool the kitchen have appeared.

[0003] The refrigeration module of a refrigerated range hood typically includes a refrigeration fan and a cooling fan. In existing technology, the refrigeration fan and the cooling fan of the refrigeration module are located on both sides of the same height of the exhaust fan. This clamping design limits the size of the exhaust fan's volute and makes it impossible to adjust the airflow of the exhaust fan by increasing the fan size. At the same time, it requires a large amount of cabinet width space along the width direction, which may result in insufficient cabinet width space and inability to install the hood. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of existing refrigerated range hoods, such as the difficulty in adjusting the size of the exhaust fan and the high requirements for installation space in the width direction, thereby providing a range hood.

[0005] The present invention provides a range hood, comprising: a first housing with a built-in exhaust fan, and an exhaust port and an exhaust section thereon; a refrigeration device disposed above the exhaust fan, comprising a refrigeration fan and a cooling fan, wherein the cooling fan is connected to the first housing and the refrigeration fan is adapted to directionally exhaust cold air.

[0006] The cooling fan and the heat dissipation fan are arranged side by side at intervals along the thickness direction of the first housing.

[0007] The range hood also includes: a second housing, disposed on the upper side of the first housing, having a thickness less than or equal to that of the first housing, and housing the refrigeration device, having an air inlet and a cold air outlet on it.

[0008] The cooling fan is a centrifugal fan, and its air outlet is located at the top of the first housing.

[0009] The refrigeration fan includes: a first air inlet end, on which an evaporator assembly is disposed; a first fan cavity, connected to the first air inlet end, having a first driving component built in, suitable for driving gas flow, the first fan cavity being spaced apart from the top of the first housing; and a first air outlet end, connected to and disposed on the lower side of the first fan cavity, being curved and communicating with a cold air outlet on the side wall of the second housing.

[0010] The refrigeration fan is configured as a cross-flow fan.

[0011] The cooling fan includes: a second air inlet end, which is disposed facing the opening of the cooling fan; and a second fan body, one end of which is sealed to the second air inlet end along the thickness direction of the first housing.

[0012] The second air inlet includes: a second air inlet filled with a condenser assembly; and a main air inlet located on the side of the second fan body facing the second air inlet, spaced apart from and sealed to the second air inlet, with a collector provided on its inner edge.

[0013] The air inlet is located at the top of the second housing;

[0014] The opening of the second air inlet extends along the height direction, with its top end positioned above the refrigeration fan and its lower end adjacent to the first air outlet.

[0015] The minimum distance between the condenser assembly and the refrigeration fan is set as L1, and the distance between the condenser assembly and the collector is set as L2, where L1 and / or L2 are greater than 10mm.

[0016] The exhaust fan is inclined along the thickness direction inside the first housing.

[0017] The technical solution of this invention has the following advantages:

[0018] 1. The present invention provides a range hood, comprising: a first housing having a built-in exhaust fan and a smoke inlet and an exhaust section thereon; a refrigeration device disposed above the exhaust fan, comprising a refrigeration fan and a cooling fan, wherein the cooling fan is connected to the first housing and the refrigeration fan is adapted to directionally exhaust cold air.

[0019] Meanwhile, the refrigeration fan and cooling fan in the refrigeration unit are placed above the exhaust fan. This arrangement allows for a further increase in the height of the range hood, shortening the distance between the smoke inlet and the stove, thus improving smoke extraction performance. On the other hand, it reduces the number of structures along the width of the range hood, thereby reducing the space requirements in the width direction and avoiding any restrictions on the exhaust fan in the width direction. This effectively overcomes the shortcomings of existing refrigerated range hoods, such as the difficulty in adjusting the size of the exhaust fan and the high requirements for installation space in the width direction.

[0020] 2. In the range hood provided by the present invention, the cooling fan and the heat dissipation fan are arranged side by side at intervals along the thickness direction of the first housing.

[0021] By placing the cooling fan and the heat dissipation fan on the same thickness direction, the space occupied by the cooling device in the width direction can be further reduced. At the same time, the spacing between the two can ensure the normal operation of the fans.

[0022] 3. The range hood provided by the present invention further includes: a second housing disposed on the upper side of the first housing, the thickness of which is less than or equal to that of the first housing, and the refrigeration device is built into it, and an air inlet and a cold air outlet are provided thereon.

[0023] By setting a second housing on the upper side of the first housing, installation space can be provided for the refrigeration unit. At the same time, by limiting its thickness, the thickness space requirement is avoided when the refrigeration fan and the heat dissipation fan are stacked in the thickness direction, which would exceed the depth of the cabinet where they are installed, thus avoiding interference with the cabinet door.

[0024] 4. The range hood provided by the present invention has a centrifugal fan for cooling, and its air outlet is located at the top of the first housing.

[0025] This design ensures that the cooling fan's exhaust air is vertically downward, directly entering the first casing, where it is drawn in and discharged by the exhaust fan. This avoids the impact losses caused by the airflow colliding with the casing or guide device due to unreasonable airflow angles in axial or cross-flow fan designs, thus improving heat dissipation.

[0026] 5. The range hood provided by the present invention includes a cooling fan comprising: a first air inlet end on which an evaporator assembly is disposed; a first fan cavity connected to the first air inlet end, having a first driving component built in, adapted to drive gas flow, the first fan cavity being spaced apart from the top of the first housing; and a first air outlet end connected to the lower side of the first fan cavity, being curved and communicating with a cold air outlet on the side wall of the second housing.

[0027] The first air outlet is located on the lower side of the first fan cavity and is bent, which can increase the airflow travel distance, reduce the airflow speed, and improve the user's comfort.

[0028] 6. The range hood provided by the present invention has an air inlet located at the top of the second housing; the opening of the second air inlet extends along the height direction, with its top end located above the refrigeration fan and its lower end adjacent to the first air outlet.

[0029] The air inlet is located at the top of the second housing to reduce the airflow temperature at the air inlet location. At the same time, the opening of the second air inlet extends along the height direction and is higher than the cooling fan. Its lower end is adjacent to the first air outlet. This arrangement allows the back side of the curved structure of the first air outlet to be used as the air inlet space for the cooling fan, and the top position is closer to the air inlet to increase the incoming flow, thereby effectively improving the flow velocity of the condenser.

[0030] 7. The range hood provided by the present invention sets the minimum distance between the condenser assembly and the cooling fan to L1, and sets the distance between the condenser assembly and the collector to L2, wherein L1 and / or L2 are greater than 10mm.

[0031] This configuration ensures sufficient airflow at the second air inlet, reduces localized losses caused by airflow bends, and improves heat exchange efficiency.

[0032] 8. The range hood provided by the present invention, wherein the exhaust fan is inclined along the thickness direction inside the first housing.

[0033] The inclined arrangement ensures that the first housing can collect and discharge flue gas while effectively utilizing the space in the thickness direction of the first housing, reducing the height of the exhaust fan, and solving or alleviating the problem of excessive height caused by the installation of the refrigeration device in the height direction. Attached Figure Description

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a cross-sectional view of the internal structure of a range hood provided in an embodiment of the present invention;

[0036] Figure 2 for Figure 1 The diagram shows the internal structure of the range hood along its width.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. First housing; 11. Exhaust fan; 12. Smoke inlet; 13. Smoke exhaust section; 2. Refrigeration fan; 21. First air inlet; 22. Evaporator assembly; 23. First fan cavity; 24. First drive component; 25. First air outlet; 3. Cooling fan; 31. Second air inlet; 311. Second air inlet; 312. Condenser assembly; 313. Main air inlet; 314. Collector; 32. Second fan body; 4. Second housing; 41. Air inlet; 42. Cold air outlet; 43. Air outlet; 5. Compressor. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figure 1 - Figure 2 This embodiment provides a range hood, including: a first housing 1 and a refrigeration device.

[0044] The first housing 1 is square-shaped and contains a smoke exhaust fan 11. It is also equipped with a smoke inlet 12 and a smoke exhaust section 13. In this embodiment, the smoke inlet 12 is located on the bottom side of the first housing 1, and the smoke exhaust section 13 is cylindrical and passes through the top of the first housing 1 to connect with an external smoke exhaust pipe.

[0045] The refrigeration device is located on the upper side of the exhaust fan 11, including a refrigeration fan 2 and a heat dissipation fan 3. The heat dissipation fan 3 is connected to the first housing 1. The refrigeration fan 2 is adapted to directionally discharge cold air. In this embodiment, a compressor 5 is also provided on the upper side of the exhaust fan 11.

[0046] Meanwhile, the refrigeration fan 2 and the cooling fan 3 in the refrigeration unit are set on the upper side of the exhaust fan 11. This arrangement allows for a further increase in the height of the range hood, shortening the distance between the smoke inlet 12 and the stove, thus improving smoke extraction performance. On the other hand, it reduces the number of structures along the width of the range hood, thereby reducing the space requirements in the width direction and avoiding limiting the exhaust fan 11 in the width direction. This effectively overcomes the shortcomings of existing refrigerated range hoods, such as the difficulty in adjusting the size of the exhaust fan 11 and the high requirements for installation space in the width direction.

[0047] In this embodiment, if Figure 1 As shown, the horizontal direction represents the thickness of the range hood, the vertical direction represents the height of the range hood, and the direction along the paper surface represents the width of the range hood.

[0048] In this embodiment, the cooling fan 2 and the cooling fan 3 are arranged side-by-side with a gap along the thickness direction of the first housing 1. Arranging the cooling fan 2 and the cooling fan 3 on the same thickness direction further reduces the space occupied by the cooling device in the width direction. Simultaneously, the gap between them ensures the normal operation of the fans. As an alternative implementation, they can also be arranged with a gap along the width direction.

[0049] The range hood also includes a second housing 4, which is disposed on the upper side of the first housing 1. The second housing 4 has the same thickness as the first housing 1 and houses a refrigeration device. It has an air inlet 41 and a cold air outlet 42. As an alternative implementation, the thickness of the second housing 4 can be less than that of the first housing 1. In this embodiment, the two are integrally formed as a smoke collection hood structure.

[0050] By setting a second housing 4 on the upper side of the first housing 1, installation space can be provided for the refrigeration device. At the same time, by limiting its thickness, the thickness space requirement is avoided when the refrigeration fan 2 and the heat dissipation fan 3 are stacked in the thickness direction, which would exceed the depth of the cabinet and thus avoid interference with the cabinet door.

[0051] Specifically, the cooling fan 3 is configured as a centrifugal fan, with its air outlet 43 located at the top of the first housing 1. This configuration ensures that the air outlet of the cooling fan 3 is vertically downward, directly entering the first housing 1, where it is drawn in and discharged by the exhaust fan 11. This avoids the impact losses caused by the airflow colliding with the housing or the guide device due to unreasonable airflow angles in the design of axial or cross-flow fans, thus improving heat dissipation.

[0052] The cooling fan 2 includes a first air inlet 21, a first fan cavity 23, and a first air outlet 25. The first air inlet 21 is open and has an evaporator assembly 22 mounted on it. The first fan cavity 23 is connected to the first air inlet 21 and houses a first driving element 24, specifically a cross-flow impeller suitable for driving gas flow. The first fan cavity 23 is spaced apart from the top of the first housing 1. The first air outlet 25 is connected to the lower side of the first fan cavity 23, is curved, and communicates with a cold air outlet 42 on the side wall of the second housing 4. In this embodiment, the cold air outlet 42 is also equipped with several guide vanes to adjust the airflow direction as needed.

[0053] The first air outlet 25 is located below the first fan cavity 23 and is bent to increase the airflow travel distance, reduce the airflow speed, and improve user comfort. Specifically, the cooling fan 2 is configured as a cross-flow fan.

[0054] The cooling fan 3 includes a second air inlet end 31 and a second fan body 32. In this embodiment, the cooling fan 3 and the cooling fan 2 are arranged adjacent to each other in the lateral direction. The second air inlet end 31 serves as the air inlet structure of the cooling fan 3 and is arranged along the side of the cooling fan 3, with its opening facing the cooling fan 2. The second fan body 32 is arranged at one end away from the cooling fan along the thickness direction of the first housing 1 and is sealed to the second air inlet end 31.

[0055] Furthermore, the second air inlet 31 includes a second air inlet 311 and a main air inlet 313. The second air inlet 311 is filled with a condenser assembly 312; the main air inlet 313 is located on the side of the second fan body 32 facing the second air inlet 311, and is spaced apart from and sealed to the second air inlet 311, and has a collector 314 on its inner edge.

[0056] Furthermore, the air inlet 41 is located at the top of the second housing 4, and the opening of the second air inlet 31 extends along the height direction, with its top end located on the upper side of the cooling fan 2 and its lower end located adjacent to the first air outlet 25.

[0057] The air inlet 41 is located at the top of the second housing 4 to reduce the airflow temperature at the ambient position of the air inlet 41. At the same time, the opening of the second air inlet 31 extends along the height direction and is higher than the cooling fan 2, with its lower end adjacent to the first air outlet 25. This arrangement allows the back side of the curved structure of the first air outlet 25 to serve as the air inlet space for the cooling fan 3, and the top position is closer to the air inlet 41 to increase the incoming flow, thereby effectively improving the flow velocity of the condenser.

[0058] As an alternative implementation, the air inlet 41 is provided on the side of the second housing 4.

[0059] The minimum distance between the condenser assembly 312 and the cooling fan 2 is set as L1, and the distance between the condenser assembly 312 and the collector 314 is set as L2. In this embodiment, both L1 and L2 are greater than 10 mm. As an alternative implementation, either L1 or L2 can be less than or equal to 10 mm. As shown in the table below, this setting can ensure the air intake volume of the second air inlet 31, reduce local losses caused by airflow bends, and improve heat exchange efficiency.

[0060] Table 1. Simulation Comparison of Cooling Fan Performance

[0061] plan Cooling fan air volume m3 / h The gaps L1 and L2 are 10mm. 415 The gaps L1 and L2 are 20mm. 429 The gaps L1 and L2 are 30mm. 440

[0062] In this embodiment, the exhaust fan 11 is inclined along the thickness direction inside the first housing 1. This inclined arrangement ensures that the first housing 1 can collect and discharge flue gas while effectively utilizing the space in the thickness direction within the first housing 1, reducing the height occupied by the exhaust fan 11, and solving or mitigating the problem of excessive height caused by the installation of a cooling device in the height direction.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A range hood, characterized in that, include: The first housing (1) has a built-in smoke exhaust fan (11) and a smoke inlet (12) and a smoke exhaust section (13) on it; A refrigeration device is provided on the upper side of the exhaust fan (11), including a refrigeration fan (2) and a heat dissipation fan (3). The heat dissipation fan (3) is connected to the first housing (1), and the refrigeration fan (2) is adapted to directionally discharge cold air. The second housing (4) is disposed on the upper side of the first housing (1), and its thickness is less than or equal to that of the first housing (1). The refrigeration device is built into it, and an air inlet (41) and a cold air outlet (42) are provided on it. The refrigeration fan (2) includes: The first air inlet (21) is provided with an evaporator assembly (22); The first fan cavity (23) is connected to the first air inlet (21) and has a first driving component (24) built in it, which is suitable for driving gas flow. The first fan cavity (23) is spaced apart from the top of the first housing (1). The first air outlet (25) is connected to the lower side of the first fan cavity (23), and is arranged in an arc shape, communicating with the cold air outlet (42) on the side wall of the second housing (4); The cooling fan (3) includes: The second air inlet (31) is provided with an opening facing the refrigeration fan (2); The second fan body (32) is sealed to the second air inlet end (31) at one end along the thickness direction of the first housing (1); The second air inlet (31) includes: The second air inlet (311) is filled with a condenser assembly (312); The main air inlet (313) is located on the side of the second fan body (32) facing the second air inlet (311), and is spaced apart from and sealed to the second air inlet (311). A collector (314) is provided on its inner edge. The air inlet (41) is located on the top of the second housing (4); The opening of the second air inlet (31) extends along the height direction, with its top end located on the upper side of the refrigeration fan (2) and its lower end located adjacent to the first air outlet (25).

2. The range hood according to claim 1, characterized in that, The cooling fan (2) and the heat dissipation fan (3) are arranged side by side at intervals along the thickness direction of the first housing (1).

3. The range hood according to claim 1, characterized in that, The cooling fan (3) is a centrifugal fan, and its air outlet (43) is located on the top of the first housing (1).

4. The range hood according to claim 1, characterized in that, The refrigeration fan (2) is configured as a cross-flow fan.

5. The range hood according to claim 1, characterized in that, The minimum distance between the condenser assembly (312) and the refrigeration fan (2) is set to L1, and the distance between the condenser assembly (312) and the collector (314) is set to L2, where L1 and / or L2 are greater than 10 mm.

6. The range hood according to any one of claims 1-5, characterized in that, The exhaust fan (11) is inclined along the thickness direction inside the first housing (1).

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