Refrigeration range hood

Abstract

The utility model discloses a refrigeration range hood which comprises an oil smoke suction assembly and a refrigeration assembly, the oil smoke suction assembly comprises a smoke collecting hood, a smoke inlet is formed in the front side of the smoke collecting hood, and the oil smoke suction assembly further comprises a smoke baffle capable of opening and closing the smoke inlet; the refrigeration assembly comprises an air outlet assembly and a box body arranged on the exhaust fume collecting hood, a cold air outlet is formed in the bottom of the front side of the box body, and when the exhaust fume baffle is in an open state, the cold air outlet is located above the exhaust fume baffle; the air outlet assembly comprises an air guide piece, the air guide piece comprises an air outlet located in the front side and an air guide part located at the bottom, the end of the front side of the air guide part extends to the air outlet, and the upper surface of the air guide part is in an arc shape and is gradually bent upwards from back to front.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner adjustment technology especially a refrigeration range hood. BACKGROUND

[0002] With the improvement of material life level, people's requirement for kitchen environment is higher and higher, people need to use the stove during cooking, a large amount of heat is generated in the kitchen, which leads to the increase of the temperature of the whole space, and the comfort of the environment is reduced. At present, most families solve this problem by temporarily adding a fan, but this method is not only inconvenient, but also occupies the kitchen area.

[0003] A range hood with refrigeration function has been disclosed in the prior art, which can blow cold air from the casing of the range hood to cool the kitchen. The cold air outlet of the existing refrigeration range hood is located at the upper part of the cabinet door, and the blowing direction is horizontal air outlet, so the cold air cannot blow to the person, and the user experience is poor. In order to ensure that the cold air blows to the cook, an up-down adjusting swing leaf is usually arranged at the cold air outlet. A range hood is disclosed in Chinese patent with application number 202311741001.7. Although this range hood can make the cold air outlet embedded in the cabinet, the overall performance is better, but the installation position of the air outlet is higher, the cabinet door needs to be holed to accommodate the cold air outlet, and the installation of the whole machine is difficult, which is not suitable for replacement users. In addition, by adjusting the air outlet angle to blow the wind to the person, the air outlet angle changes too much to cause air field disturbance, which affects the oil fume extraction effect. Due to the angle, when the cook stands in front of the range hood, the cold air cannot blow to the head or blow to the head, which affects the user comfort and the cold air effect is poor. This air outlet structure also has the defect of long air outlet distance, which makes the user perceive high air outlet temperature and no cool feeling.

[0004] Some patents also disclose a scheme of moving the cold air outlet downward, which sets the air outlet at the lower edge of the cabinet door to improve the user's cold air feeling experience. For example, the Chinese patent with application number 202410539693.5 of the applicant. However, since the cold air outlet is arranged corresponding to the lower edge of the cabinet, the cold air flows downward along the smoke baffle of the range hood due to the Coanda effect, and the user cannot feel the cold air above the chest, which affects the user experience. The cold air moves downward along the smoke baffle, which disturbs the air flow field at the end of the smoke baffle of the range hood, and the range hood has the risk of smoke running. The cold air supply fan is close to the person, the noise is high, and the user experience is poor.

[0005] Therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a refrigeration range hood to improve the user's cool feeling experience in view of the deficiencies in the prior art.

[0007] The utility model discloses a technical scheme that solves the above technical problems: a refrigeration range hood, including oil smoke component and refrigeration component, the oil smoke component includes the fume collecting hood, the fume collecting hood front side is equipped with the smoke inlet, the oil smoke component still includes the smoke baffle that can open and close the smoke inlet, the refrigeration component includes the air outlet component and sets up the box in the fume collecting hood, the bottom of the front side of the box forms the cold air outlet, when the smoke baffle is in the open state, the cold air outlet is located the top of the smoke baffle, characterized in that:

[0008] The air outlet component includes a wind guide piece, the wind guide piece includes an air outlet on the front side and a wind guide part on the bottom, the front end of the wind guide part extends to the air outlet, and the upper surface of the wind guide part is arc-shaped and gradually curved upward from back to front.

[0009] By setting the wind guide part on the air outlet component, the upper surface of the wind guide part is gradually curved upward from back to front, so that the cold air flow can be guided to the upper part of the horizontal plane, the cold air flow flows upward after being blown out of the air outlet, the problem that the user's neck and head cannot experience the cold air due to the wall adhesion of the cold air flow caused by the Coanda effect is solved, the attenuation of the cold air flow along the wall of the smoke baffle is avoided, and the user's cool wind experience effect is better.

[0010] Further, to facilitate the setting of the wind guide part, the wind guide piece further includes a front side plate, a rear side plate, a left side plate, a right side plate and a bottom plate, the left side plate is connected between the left end of the front side plate and the rear side plate, the right side plate is connected between the right end of the front side plate and the rear side plate, the bottom plate is arranged between the bottom of the front side plate, the rear side plate, the left side plate and the right side plate, the air outlet is arranged on the lower part of the front side plate, and the wind guide part is arranged on the bottom plate.

[0011] Further, the top of the front side plate, the rear side plate, the left side plate and the right side plate is surrounded by the air inlet, the bottom plate includes a first part and a second part arranged in front and back, the first part is connected with the front side plate, the second part is connected with the rear side plate, the second part gradually inclines downward from the connection with the rear side plate to the first part, and the wind guide part is formed on the upper surface of the first part of the bottom plate, so that the cold air flow entering from the top can be gradually turned and guided forward, avoiding turbulence.

[0012] Further, the air outlet assembly further comprises a front-rear opening split flow channel located at the inner side of the bottom of the air guide, the rear end of the split flow channel is in fluid communication with the inside of the air guide, the front end of the split flow channel extends to the air outlet, and the split flow channel is in the shape of a rear large front small horn.

[0013] Further, in order to facilitate the formation of the split flow channel, the air guide comprises a front side plate, a rear side plate, a left side plate, a right side plate and a bottom plate, the left side plate is connected between the left end of the front side plate and the rear side plate, the right side plate is connected between the right end of the front side plate and the rear side plate, the bottom plate is arranged between the bottom of the front side plate, the rear side plate, the left side plate and the right side plate, and the air outlet is arranged at the lower part of the front side plate.

[0014] The air outlet assembly further comprises a split flow plate, the split flow plate is arranged in an up-down interval with the bottom plate, and the split flow channel is formed between the split flow plate and the bottom plate.

[0015] Further, in order to avoid the interference and disturbance of the upward airflow and the accelerated airflow, the air guide part and the split flow channel are arranged along the length direction of the air outlet.

[0016] Further, the refrigeration assembly further comprises a compressor, an evaporator and a condenser which are arranged in the cabinet, an air inlet is arranged at the top of the cabinet, and the refrigeration assembly further comprises a cooling air fan which sucks the air outside the cabinet from the air inlet and blows the cooling air after heat exchange with the evaporator to the air outlet assembly.

[0017] Further, the cooling air fan is arranged close to the top of the cabinet, and the refrigeration assembly further comprises a supply air duct which is in fluid communication with the cooling air fan and the air outlet assembly, so that the arrangement of the refrigeration fan can reduce the noise.

[0018] Further, in order to facilitate the disassembly, assembly and maintenance of the supply air duct, the supply air duct comprises a first duct connected with the cooling air fan and a second duct connected with the air outlet assembly, and the first duct and the second duct are detachably connected.

[0019] Further, in order to make the supply air flow uniform, at least two evenly arranged flow plates are arranged in the second duct, each flow plate extends from close to the first duct to close to the air outlet assembly.

[0020] Compared with the prior art, the advantages of the utility model lie in: through setting the air guide part in the air outlet assembly, the upper surface of the air guide part is gradually curved upwards from back to front, thereby the cold air flow can be guided to the upper part of the horizontal plane, so that the cold air flow flows upwards after blowing out from the air outlet, the problem that the user's neck and head cannot experience the cold air due to the wall sticking motion of the cold air flow caused by the Coanda effect is solved, the attenuation of the cold air flow along the wall of the smoke baffle is avoided, and the cool air experience effect of the user is better. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the schematic view of the range hood of the utility model embodiment;

[0022] Figure 2 It is the sectional side view of the range hood of the utility model embodiment;

[0023] Figure 3 It is Figure 2 It is the schematic view of the hidden oil fume suction assembly;

[0024] Figure 4 It is the schematic view of the air supply pipeline and the air outlet assembly of the refrigeration assembly of the range hood of the utility model embodiment;

[0025] Figure 5 It is the exploded structural schematic view of the air supply pipeline and the air outlet assembly of the refrigeration assembly of the range hood of the utility model embodiment;

[0026] Figure 6 It is the schematic view of the air outlet assembly of the refrigeration assembly of the range hood of the utility model embodiment;

[0027] Figure 7 It is the exploded structural schematic view of the air outlet assembly of the refrigeration assembly of the range hood of the utility model embodiment;

[0028] Figure 8 It is Figure 7 It is the local partial I enlarged schematic view;

[0029] Figure 9 It is the sectional side view of the air guide piece of the air outlet assembly of the refrigeration assembly of the range hood of the utility model embodiment;

[0030] Figure 10 It is the sectional side view of the air guide piece of the air outlet assembly of the refrigeration assembly of the range hood of the utility model embodiment (the section is parallel with Figure 9 );

[0031] Figure 11 It is Figure 10 It is the local partial II enlarged schematic view;

[0032] Figure 12A sectional view of the air supply pipeline of the refrigeration assembly of the range hood according to the embodiment of the present application is shown in the figure.

[0033] Figure 13 A sectional view of the air supply pipeline of the refrigeration assembly of the range hood according to the embodiment of the present application is shown in the figure. Figure 12 DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, since the embodiments disclosed by the present application can be arranged in different directions, so these terms indicating the direction are only as an illustration and should not be regarded as a limitation, such as "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can explicitly or implicitly include one or more of the features.

[0036] Referring to Figures 1-3 A refrigeration range hood, comprising a smoke suction assembly and a refrigeration assembly, the smoke suction assembly can comprise a smoke collecting hood 11 and a fan system 13 arranged in the smoke collecting hood 11. The smoke suction assembly is not limited to the side suction type shown in the figure, and can also be the commonly used top suction type, at which time the fan system 13 is arranged above the smoke collecting hood 11.

[0037] The refrigeration assembly comprises a compressor 21, an evaporator 22, a condenser 23 and a box body 24, the box body 24 is arranged above the smoke collecting hood 11, and the compressor 21, the evaporator 22 and the condenser 23 are arranged in the box body 24. A cold air outlet 242 for blowing the cold air generated by the refrigeration assembly is formed in the front bottom of the box body 24, and an air inlet 241 can be formed in the top of the box body 24. In the normal installation state of the range hood, the cold air outlet 242 is located below the lower edge of the cabinet of the kitchen. By moving the cold air outlet 242 downward, the cabinet does not need to reserve the cold air outlet with additional openings, the whole machine is convenient to install, and is suitable for replacement users. In addition, the cold air outlet 242 is closer to the person, the travel distance of the cold air flow is short, and the user's cool wind experience is better.​

[0038] The refrigeration assembly further comprises a cooling fan 25, an air outlet assembly 26 and an air supply duct 27. The cooling fan 25 is arranged in the cabinet 24 and is adjacent to the evaporator 22. The air outlet assembly 26 is arranged at the cooling air outlet 242. The air supply duct 27 connects the cooling fan 25 and the air outlet assembly 26, so that the cooling fan 25 and the air outlet assembly 26 are in fluid communication. The cooling fan 25 sucks air outside the cabinet 24 through the air inlet 241, exchanges heat with the evaporator 22, and then sends the cooled air to the air outlet assembly 26 through the air supply duct 27, and then blows out through the cooling air outlet 242.

[0039] The front side of the smoke hood 11 is provided with a smoke inlet 111. The oil fume suction assembly further comprises a smoke baffle 12 which can open and close the smoke inlet 111. When the smoke baffle 12 is in the open state, it forms an angle with the vertical direction. The cooling air outlet 242 is located above the smoke baffle 12. In the horizontal plane projection, the cooling air outlet 242 falls within the range of the smoke baffle 12, or is located behind the smoke baffle 12, that is, the cooling air outlet 242 blows out the cooling air flowing forward, which may pass through the smoke baffle 12. The cooling air blown out by the above-mentioned cooling air outlet 242 will move along the outer surface of the smoke baffle 12 (the surface facing the user) and flow downward due to the Coanda effect, resulting in the disadvantage that the user's neck and head cannot experience the cooling air.

[0040] Therefore, referring to Figures 6-11 , the air outlet assembly 26 comprises a wind guide 261 and a guide vane 262. The wind guide 261 is in the form of a hollow shell, preferably an integral structure, which comprises a front side plate 2611, a rear side plate 2612, a left side plate 2613, a right side plate 2614 and a bottom plate 2615. The front side plate 2611 and the rear side plate 2612 are arranged in front of and behind each other and can be parallel. The front side plate 2611 refers to the plate part close to the user side in the normal installation state of the range hood. The left side plate 2613 is connected between the left side ends of the front side plate 2611 and the rear side plate 2612. The right side plate 2614 is connected between the right side ends of the front side plate 2611 and the rear side plate 2612. The bottom plate 2615 is arranged between the bottoms of the front side plate 2611, the rear side plate 2612, the left side plate 2613 and the right side plate 2614. The lower part of the front side plate 2611 is provided with an air outlet 2616. The top parts of the front side plate 2611, the rear side plate 2612, the left side plate 2613 and the right side plate 2614 surround an air inlet 2617. The above-mentioned air supply duct 27 is connected to the air inlet 2617.

[0041] The bottom plate 2615 is at least partially inclined and gradually slopes downward from back to front, so that the cold air entering the top air inlet 2617 can be guided to gradually flow to the front side. In the embodiment, the bottom plate 2615 comprises a first portion 26151 and a second portion 26152 arranged in front of and behind each other, the rear end of the first portion 26151 is connected to the second portion 26152, the first portion 26151 is connected to the front side plate 2611, the second portion 26152 is connected to the rear side plate 2612, the first portion 26151 extends substantially horizontally, and the second portion 26152 gradually slopes downward from the connection with the rear side plate 2612 to the first portion 26151.

[0042] The air outlet 2616 corresponds to the cold air outlet 242 on the cabinet 24, and can be partially located in the cold air outlet 242 or behind the cold air outlet 242.

[0043] The bottom plate 2615 of the air guide member 261 is provided with an air guide portion 2618, which is preferably formed on the upper surface of the first portion 26151 of the bottom plate 2615, and the front end of the air guide portion 2618 extends to the air outlet 2616. The upper surface of the air guide portion 2618 is arc-shaped and gradually curves upward from back to front, so that the cold air flow can be guided to the upper part of the horizontal plane, so that the cold air flow flows upward, solves the problem that the user's neck and head cannot experience the cold air due to the wall sticking motion of the cold air flow caused by the Coanda effect, and makes the user's cool wind experience effect better.

[0044] Referring to Figure 9 , the cold air flow guided by the front end of the air guide portion 2618 has an angle with the horizontal plane S (since it is a side view, the plane is shown as a virtual straight line S), and the flow direction of the cold air flow is shown by the arrow in Figure 9 . Generally speaking, when the angle is greater than or equal to 18° (the angle between the tangent line passing through any point on the front end of the air guide portion 2618 and the horizontal plane on the vertical plane extending from front to back), the Coanda effect of the cold air flow can be obviously reduced, the attenuation of the cold air flow along the wall surface of the smoke baffle 12 can be avoided, and the cold air flow flows upward.

[0045] The guide vanes 262 are a plurality of and are arranged in the left-right direction, and the upper and lower ends thereof are rotatably supported in the air guide member 261 by the rotating shafts 2621 and correspond to the air outlet 2616. The rotating shafts 2621 of the guide vanes 262 extend vertically. The air guide portion 2618 described above corresponds to the position between two guide vanes 262. The plurality of guide vanes 262 can be connected into one body by the connecting rods 2622, so that a plurality of guide vanes 262 can be driven to rotate by one driving mechanism (not shown), such as a motor. The structure of the guide vanes 262 and the driving mechanism are prior art, which will not be described here.

[0046] The air outlet assembly further comprises a flow distribution plate 263 corresponding to the guide vanes 262, located below each guide vane 262, and located at the front side of the rotating shaft 2621 of the guide vane 262 to avoid interference with the guide vane 262. The flow distribution plate 263 is connected between adjacent air guide portions 2618, and is arranged in an up-down interval with the bottom plate 2615. The flow distribution plate 263 is an integral structure with the bottom plate 2615 or a structure independently arranged on the bottom plate 2615. The flow distribution plate 263 gradually inclines downward from back to front, thereby forming a flow distribution channel 2631 between the flow distribution plate 263 and the bottom plate 2615, which is open at the front and rear ends, with the front end extending to the air outlet 2616, and the rear end in fluid communication with the inside of the air guide 261. The flow distribution channel 2631 is in the shape of a horn with a large back and a small front. Thus, the flow distribution channel 2631 and the air guide portion 2618 are staggered along the length direction of the air outlet 2616, i.e. along the left-right direction, the flow distribution channel 2631, the air guide portion 2618, the flow distribution channel 2631, the air guide portion 2618, and so on, are arranged in sequence. Part of the cold air is guided out by the air guide portion 2618, and part of the cold air passes through the flow distribution channel 2631 and is blown out after being accelerated in the flow distribution channel 2631. The accelerated cold air flow flows along the upper surface of the smoke shield 12, and in combination with the characteristics of the air flow adhering to the wall, solves the problem of smoke running out of the end of the smoke shield 12 when the user stirs or lifts the pot, and realizes the effect of isolating the oil fume by using high-speed cold air flow (similar to the wind curtain effect), thereby improving the smoke suction effect.

[0047] As can be seen from the above, the cold air diffuser 25 is arranged in the cabinet 24 and close to the top of the cabinet 24, so that it is away from the user and the wind noise can be reduced. The air outlet assembly 26 is arranged below, and the distance between the air outlet assembly 26 and the cold air diffuser 25 is far, so that the two need to be connected by the air supply pipeline 27. The air supply pipeline 27 comprises a first pipeline 271 connected with the cold air diffuser 25 and a second pipeline 272 connected with the air outlet assembly 26, see Figure 4 、 Figure 5 、 Figure 12 and Figure 13 .

[0048] The end of the second pipeline 272 connected with the first pipeline 271 has a smaller diameter than the end of the second pipeline 272 connected with the air outlet assembly 26. At least two flow uniformity plates 273 are arranged in the second pipeline 272, each flow uniformity plate 273 is arranged in an interval between the left and right sides, and the interval between the adjacent flow uniformity plates 273 matches the size of the air duct in the second pipeline 272. When the width size of the air duct is large, the flow uniformity plate 273 is increased accordingly. Each flow uniformity plate 273 extends from close to the first pipeline 271 to close to the air outlet assembly 26. The flow uniformity plate 273 is preferably in the shape of an arc.

[0049] By setting the current board 273, the air duct in the air supply duct 27 is divided into multiple small air ducts, reducing the turbulence in the air supply duct 27, to minimize the air noise in the air supply duct, and improve the user's sound quality experience.

[0050] The first duct 271 is fixed with the air cooling fan 25 at the outer periphery of the air outlet, and the connection can be completed when the range hood is shipped. The second duct 272 can be directly installed at the user's home, and can be easily disassembled when the air supply duct needs to be repaired. The first duct 271 and the second duct 272 are detachably connected. The first duct 271 and the second duct 272 are fixed by screws at the front side, and the rear side can be fixed by clamping, thereby realizing the convenient disassembly of the air supply duct 27. The second duct 272 and the air outlet assembly 26 can be connected by screws, solving the problem of convenient disassembly of the air outlet assembly 26.

[0051] The "fluid communication" referred to in the utility model refers to the spatial positional relationship between two components or parts (hereinafter collectively referred to as first part, second part), i.e. the fluid (gas, liquid or mixture of the two) can flow or / and be transported from the first part to the second part along the flow path, which can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipe, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid to flow or a combination thereof.

Claims

1. A refrigeration range hood, comprising a fume suction assembly and a refrigeration assembly, the fume suction assembly comprising a fume hood (11) having a fume inlet (111) formed on a front side thereof, and a fume baffle (12) capable of opening and closing the fume inlet (111); the refrigeration assembly comprising an air outlet assembly (26) and a cabinet (24) disposed above the fume hood (11), the cabinet (24) having a cold air outlet (242) formed on a bottom front side thereof, the cold air outlet (242) being located above the fume baffle (12) when the fume baffle (12) is in an open state; characterized in that: the air outlet assembly (26) comprises a wind guide (261), the wind guide (261) comprising an air outlet (2616) on a front side thereof and a wind guide portion (2618) on a bottom side thereof, the wind guide portion (2618) extending to the air outlet (2616) at a front end thereof, and an upper surface of the wind guide portion (2618) being arc-shaped and gradually curved upward from back to front. The wind guide (261) further comprises a front side plate (2611), a rear side plate (2612), a left side plate (2613), a right side plate (2614) and a bottom plate (2615), the left side plate (2613) being connected between left end portions of the front side plate (2611) and the rear side plate (2612), the right side plate (2614) being connected between right end portions of the front side plate (2611) and the rear side plate (2612), and the bottom plate (2615) being disposed between bottoms of the front side plate (2611), the rear side plate (2612), the left side plate (2613) and the right side plate (2614), the air outlet (2616) being formed on a lower portion of the front side plate (2611), and the wind guide portion (2618) being disposed on the bottom plate (2615).

2. The refrigerant oil extraction hood as claimed in claim 1, wherein: The front side plate (2611), the rear side plate (2612), the left side plate (2613) and the right side plate (2614) define an air inlet (2617) between top portions thereof, the bottom plate (2615) comprising a first portion (26151) and a second portion (26152) arranged in front of and behind each other, the first portion (26151) being connected to the front side plate (2611), the second portion (26152) being connected to the rear side plate (2612), the second portion (26152) being gradually inclined downward from a connection portion thereof to the first portion (26151), and the wind guide portion (2618) being formed on an upper surface of the first portion (26151) of the bottom plate (2615).

3. The oil-suction refrigerating range hood according to claim 2, characterized in that: The air outlet assembly further comprises a front-rear opening shunt passage (2631) disposed inside the bottom of the wind guide (261), a rear end portion of the shunt passage (2631) being in fluid communication with an inside of the wind guide (261), a front end portion of the shunt passage (2631) extending to the air outlet (2616), and the shunt passage (2631) being in a shape of a rear large and front small horn.

4. The oil-suction refrigerating range hood according to claim 1, characterized in that: ​ 5. The oil-suction refrigerating range hood according to claim 4, characterized in that: The air guide (261) comprises a front side plate (2611), a rear side plate (2612), a left side plate (2613), a right side plate (2614) and a bottom plate (2615), the left side plate (2613) is connected between the left end portions of the front side plate (2611) and the rear side plate (2612), the right side plate (2614) is connected between the right end portions of the front side plate (2611) and the rear side plate (2612), the bottom plate (2615) is arranged between the bottoms of the front side plate (2611), the rear side plate (2612), the left side plate (2613) and the right side plate (2614), and the air outlet (2616) is arranged on the lower portion of the front side plate (2611). The air outlet assembly further comprises a flow distribution plate (263), which is arranged in an up-down spaced manner with the bottom plate (2615), and the flow distribution channel (2631) is formed between the flow distribution plate (263) and the bottom plate (2615).

6. The refrigerant oil extraction hood as claimed in claim 4 wherein: The air guide portion (2618) and the flow distribution channel (2631) are arranged along the length direction of the air outlet (2616).

7. The refrigerant extraction hood according to any one of claims 1 to 6, characterized in that: The refrigeration assembly further comprises a compressor (21), an evaporator (22) and a condenser (23) which are all arranged in the cabinet (24), the top portion of the cabinet (24) is provided with an air inlet (241), and the refrigeration assembly further comprises a cooling air fan (25) which sucks air outside the cabinet (24) from the air inlet (241) and blows the cooled air after heat exchange with the evaporator (22) to the air outlet assembly (26).

8. The oil-extraction range hood according to claim 7, characterized in that: The cooling air fan (25) is arranged close to the top portion of the cabinet (24), and the refrigeration assembly further comprises a supply air duct (27) which fluidly connects the cooling air fan (25) and the air outlet assembly (26).

9. The oil-suction refrigerating range hood according to claim 8, characterized in that: The supply air duct (27) comprises a first duct (271) connected with the cooling air fan (25) and a second duct (272) connected with the air outlet assembly (26), and the first duct (271) and the second duct (272) are detachably connected.

10. The oil-extraction range hood according to claim 9, characterized in that: The second duct (272) is provided with at least two flow uniformizing plates (273) arranged in a spaced manner, each flow uniformizing plate (273) extends from close to the first duct (271) to close to the air outlet assembly (26).

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