CN221122326U - Refrigerating component of refrigerating range hood and refrigerating range hood - Google Patents

Abstract

The utility model discloses a refrigeration assembly of a refrigeration range hood and the refrigeration range hood, wherein the refrigeration assembly of the refrigeration range hood comprises a condenser, the condenser comprises a main body capable of conducting heat and a refrigerant channel arranged on the main body, the main body is in a pipeline shape, and the refrigerant channel is formed in the wall part of the main body; the outside of main part is provided with hollow water conservancy diversion spare, the water conservancy diversion spare includes: a first diversion part, an interlayer which is in fluid communication with the external environment is formed between the first diversion part and the main body; and the second diversion part is positioned at the downstream of the main body along the oil smoke flow path, a space surrounded by the second diversion part is in fluid communication with the interlayer, and the flow cross section area of the second diversion part is at least partially larger than that of the first diversion part, so that the air pressure in the space surrounded by the second diversion part is smaller than that in the interlayer.

Description

Refrigerating component of refrigerating range hood and refrigerating range hood

Technical Field

The utility model relates to a refrigerating device, in particular to a refrigerating assembly of a refrigerating range hood and the refrigerating range hood using the refrigerating assembly.

Background

Along with the improvement of the living standard of substances, the requirements of people on kitchen environments are higher and higher, people need to use a kitchen range and the like in the cooking process, a large amount of heat can be generated in the kitchen, the temperature of the whole space is increased, and the comfort of the environments is reduced. Currently, most households use temporary fans to solve this problem, however, this approach is not only inconvenient, but also occupies kitchen area.

For this reason, there have been disclosed in the prior art range hoods capable of cooling, which can blow cold air from a cabinet of the range hood to cool a kitchen. An air conditioning smoke machine disclosed in China patent with the application number 201810525673.7, wherein a smoke component of the air conditioning smoke machine comprises a smoke channel; the air conditioner assembly comprises a condenser assembly, the condenser assembly comprises a condensation air inlet and a condensation air outlet, the condensation air outlet is communicated with the oil smoke channel, and the condensation air inlet is independent of the oil smoke channel. However, the arrangement mode of the condenser utilizes the main fan for exhausting the oil smoke to dissipate the heat, so that the amount of the oil smoke exhausted is reduced, and the oil smoke exhausting effect is affected.

There is also a kitchen air conditioner as disclosed in chinese patent application number 202110029969.1, comprising an air conditioning unit and a range hood unit, the air conditioning unit comprising a compressor, a condenser, a throttle element, and an evaporator, the range hood unit comprising a smoke exhaust duct and a smoke exhaust fan in the smoke exhaust duct, the condenser being disposed around the peripheral wall of the smoke exhaust duct.

The kitchen air conditioner can utilize the lampblack to dissipate heat of the condenser without additional power. However, since the condenser is wound outside the smoke exhaust pipe, the condenser cannot be ensured to be completely tightly attached to the smoke exhaust pipe when wound, so that an air gap layer exists; and the oil smoke can exchange heat with the pipe wall of the condenser only through the heat conduction smoke pipe, and the heat exchange efficiency is low due to long heat exchange paths. The external condenser only depends on oil smoke to dissipate heat, most oil smoke does not contact the condenser when passing through the condenser, and the heat of the condenser cannot be driven, so that the heat exchange efficiency is low. The cooling effect of the condenser is not good, and the cooling effect of the air conditioner of the smoke machine can be directly influenced, so that the further improvement is still needed.

Disclosure of utility model

The first technical problem to be solved by the utility model is to provide a refrigeration component of a refrigeration range hood, which can improve heat exchange efficiency, aiming at the defects existing in the prior art.

The second technical problem to be solved by the utility model is to provide a refrigeration range hood with the refrigeration component.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the utility model provides a refrigeration subassembly of refrigeration range hood, includes condenser, its characterized in that:

The condenser comprises a main body capable of conducting heat and a refrigerant channel arranged on the main body, wherein the main body is in a pipeline shape, and the refrigerant channel is formed in the wall part of the main body;

The outside of main part is provided with hollow water conservancy diversion spare, the water conservancy diversion spare includes:

a first diversion part, an interlayer which is in fluid communication with the external environment is formed between the first diversion part and the main body; and

The second diversion part is positioned at the downstream of the main body along the oil smoke flow path, a space surrounded by the second diversion part is in fluid communication with the interlayer, and the flow cross section area of the second diversion part is at least partially larger than that of the first diversion part, so that the air pressure in the space surrounded by the second diversion part is smaller than that in the interlayer.

The condenser is in a pipeline shape as a whole, the interior of the condenser can dissipate heat through lampblack passing through the interior of the pipeline, the exterior of the condenser can dissipate heat through air in an external environment, and a heat transfer path between a refrigerant channel and the radiated lampblack or air is short, so that the refrigerant flowing in the interior of the tube wall of the condenser can be sufficiently radiated, the overall heat exchange efficiency is improved, and the refrigerating effect of the refrigerating assembly can be improved; and the variable pipe diameter design of the flow guide piece is utilized, so that external heat dissipation gas can be enabled to dissipate heat through the outer side wall surface of the main body without additional power, and the structure is simple and the cost is low.

Preferably, the cross-sectional area of the second flow guiding portion gradually increases in a direction away from the first flow guiding portion.

In order to facilitate the fixing of the guide piece and the main body, the guide piece further comprises a connecting part positioned between the first guide part and the second guide part;

The connecting part is in a clamping groove shape recessed towards the direction away from the corresponding end part of the main body, and the corresponding end part of the main body is clamped into the connecting part; or the end of the main body corresponding to the connecting part is in a clamping groove shape which is recessed in a direction away from the connecting part, and the connecting part is clamped into the corresponding end of the main body.

Preferably, a notch is formed at the end part of the second flow guiding part connected with the connecting part, and the notch enables fluid communication between the interlayer and the space enclosed by the second flow guiding part.

Further, a valve plate capable of opening and closing the notch is arranged at the notch to prevent oil smoke in a negative pressure area formed in the second flow guiding part from flowing backwards into the interlayer to pollute the outer side wall surface of the main body of the condenser.

Preferably, the main body and the flow guiding member are longitudinally arranged, and the upper edge of the notch corresponds to the radial inner side of the lower edge of the notch, so that oil drops accumulated on the second flow guiding portion can flow downwards from the inner side wall surface of the main body without entering the interlayer.

Further, the refrigeration assembly further comprises a heat radiation fan which can blow air entering from the external environment to the space surrounded by the second diversion part through the interlayer, so that the heat radiation fan can be started when the smoke discharging resistance is large, and the situation that the oil smoke in the negative pressure area formed in the second diversion part flows backwards into the interlayer to pollute the outer side wall surface of the main body of the condenser is avoided.

Preferably, to ensure a short refrigerant heat transfer path, the wall portion of the main body includes two layers of heat conductive plates, and the refrigerant passage is formed between the two layers of heat conductive plates.

Preferably, the two heat conductive plates have a gap only at a position where the refrigerant passage is formed.

The utility model solves the second technical problem by adopting the technical proposal that: a refrigeration range hood, includes oil smoke absorption subassembly, its characterized in that: the refrigeration range hood further includes a refrigeration assembly as described above, with a condenser of the refrigeration assembly disposed downstream of the range hood assembly along the range hood flow path.

Preferably, the refrigeration assembly is disposed above the range hood assembly. Therefore, the refrigerating assembly can be conveniently installed, and meanwhile, the occupied space on two sides of the oil fume suction assembly is reduced.

Preferably, the fume exhaust assembly comprises a first shell and a main fan arranged in the first shell;

The refrigeration assembly also includes a second housing, a compressor, and an evaporator, the compressor, the evaporator, and the condenser disposed within the second housing, the second housing disposed above the first housing.

Compared with the prior art, the utility model has the advantages that: the condenser is in a pipeline shape as a whole, the interior of the condenser can dissipate heat through lampblack passing through the interior of the pipeline, the exterior of the condenser can dissipate heat through air in an external environment, and a heat transfer path between a refrigerant channel and the radiated lampblack or air is short, so that the refrigerant flowing in the interior of the tube wall of the condenser can be sufficiently radiated, the overall heat exchange efficiency is improved, and the refrigerating effect of the refrigerating assembly can be improved; and the variable pipe diameter design of the flow guide piece is utilized, so that external heat dissipation gas can be enabled to dissipate heat through the outer side wall surface of the main body without additional power, and the structure is simple and the cost is low.

Drawings

Fig. 1 is a schematic view of a range hood according to a first embodiment of the present utility model;

fig. 2 is an exploded view of a range hood according to a first embodiment of the present utility model;

Fig. 3 is a schematic view of a range hood and a refrigeration assembly of a range hood according to a first embodiment of the present utility model, with part of the housing hidden;

Fig. 4 is a sectional view of a refrigerating assembly of a range hood according to a first embodiment of the present utility model;

fig. 5 is an exploded view illustrating a condenser of a refrigerating assembly of a range hood according to a first embodiment of the present utility model;

Fig. 6 is a cross-sectional view of a condenser of a refrigerating assembly of a range hood according to a first embodiment of the present utility model;

FIG. 7 is an enlarged schematic view of portion I of FIG. 6;

FIG. 8 is an enlarged schematic view of portion II of FIG. 6;

Fig. 9 is a schematic view of a range hood and a refrigeration assembly of a range hood according to a second embodiment of the present utility model, with part of the housing hidden;

Fig. 10 is a cross-sectional view of a condenser and a heat radiation fan of a refrigerating assembly of a range hood according to a second embodiment of the present utility model (valve plate open);

FIG. 11 is an enlarged schematic view of portion III of FIG. 10;

fig. 12 is a cross-sectional view of a condenser and a radiator fan of a refrigerating assembly of a range hood (valve plate closed) according to a second embodiment of the present utility model;

Fig. 13 is an enlarged view of part iv of fig. 12.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

Example 1

Referring to fig. 1 to 8, a refrigeration range hood includes a range hood assembly and a refrigeration assembly, where the range hood assembly includes a first housing 11 and a main fan 12 disposed in the first housing 11, and in this embodiment, the range hood assembly is shown in a form of a conventional side-draft range hood, and optionally, it may be in any form of a conventional top-draft type, a low-draft type, a ceiling type, or the like. The first housing 11 may be a combination of one or more housings.

The oil smoke absorbing component and the refrigerating component respectively form independent modules, and the refrigerating component is carried on the oil smoke absorbing component during installation, so that the refrigerating component does not occupy the space on the left side and the right side of the first shell 11 of the oil smoke absorbing component, and the influence on the oil smoke absorbing effect of the fan frame (part of the first shell 11) for arranging the main fan 12 can be avoided. And the two modules are independently installed, so that not only can new repair users be met, but also old replacement users can be met.

The refrigeration assembly includes a second housing 21, a compressor 22, an evaporator 23, a condenser 24, and a cooling fan 25, wherein the second housing 21 is disposed above the first housing 11, wherein the compressor 22, the evaporator 23, the condenser 24, and the cooling fan 25 may be disposed within the second housing 21, and a path for a refrigerant is formed between the compressor 22, the evaporator 23, and the condenser 24. The working principle of the refrigeration component is the same as that of the prior art.

The front side of the second housing 21, for example, near the top, is provided with a cool air outlet 211, the evaporator 23 may be disposed near the cool air outlet 211, and cool air heat-exchanged by the evaporator 23 is blown out from the cool air outlet 211 into the kitchen through the cool air dispersing fan 25, so as to provide a comfortable cooking environment temperature for the user. The other side surfaces of the second housing 21, for example, the left and right sides, are provided with air inlets 212 for supplying air (room temperature air) into the second housing 21.

A partition 26 is provided in the second housing 21, thereby dividing the interior of the second housing 21 into a first chamber 213 and a second chamber 214, which are isolated from each other. The first chamber 213 is a cold chamber, the evaporator 23 is provided in the first chamber 213, the second chamber 214 is a hot chamber, and the compressor 22 and the condenser 24 are provided in the second chamber 214.

The condenser 24 includes a main body 241 and a refrigerant passage 242, the main body 241 is formed in a hollow pipe shape, preferably a cylindrical shape, and the refrigerant passage 242 is formed inside a wall portion of the main body 241, preferably spirally wound. In the present embodiment, the main body 241 is longitudinally, particularly vertically, arranged, and opposite ends (upper and lower ends in the present embodiment) of the main body 241 are opened. The wall portion of the main body 241 includes two heat conductive plates 2411, the refrigerant channel 242 is formed between the two heat conductive plates 2411, and the two heat conductive plates 2411 have a gap only at a position where the refrigerant channel 242 is formed, and are attached to each other at other portions (gaps existing at portions other than the refrigerant channel 242 due to a processing problem, such as bubbles, etc., should be regarded as a case without gaps). Alternatively, the heat-conducting plate 2411 is a metal plate, such as preferably an aluminum plate, and the two aluminum plates are hot rolled, pressed, and inflated to form the above-described coolant passages 242 therebetween, and then rolled integrally into a desired shape. The bearing pressure of the refrigerant in the refrigerant channel 242 after hot rolling reaches 2.3MPa, and the refrigerant is in zero-clearance contact with the heat conducting material, so that the heat exchange efficiency is extremely high, and the surface temperature of the condenser in the natural environment is not higher than 50 ℃. The conventional air conditioner is of a fin type or a winding type, which is commonly used in the prior art, and the refrigerant and the heat conducting material cannot be completely in clearance fit, so that heat transfer is not smooth, the temperature of the condenser is high, and the integral refrigeration effect of the refrigeration assembly is further affected.

On the fume flow path, a flow condenser 24 is provided downstream of the main fan 12, which may be directly connected to the air outlet of the main fan 12, may be connected to the main fan 12 through the air outlet hood 13, or may be connected to a fume exhaust duct (not shown) as a part of the fume exhaust duct. That is, the space surrounded by the heat-conducting plates 2411 in the inner layer of the main body 241 is configured as a smoke exhaust channel 2412 for the smoke exhausted by the main fan 12 to pass through before reaching the public flue or being exhausted indoors, and the inner side wall surface of the heat-conducting plates 2411 in the inner layer (i.e., the inner side wall surface 2413 of the main body 241) and the outer side wall surface of the heat-conducting plates 2411 in the outer layer (i.e., the outer side wall surface 2414 of the main body 241) both form heat dissipation surfaces. The inner heat radiation surface radiates heat by the oil smoke passing through the smoke exhaust passage 2412, and the outer heat radiation surface contacts room temperature air entering the second housing 21 from the kitchen indoor environment when in operation, thereby achieving a certain degree of heat radiation. The room temperature air constitutes a heat dissipating fluid.

To further enhance the heat exchange efficiency, a hollow baffle 243 may be provided on the outside of the body 241 of the condenser 24, which is adapted to the shape of the body 241 and has a size larger than the body 241 so as to be disposed at a distance from the outer circumference of the body 241 to form an interlayer 244 between the baffle 243 and the outer side wall surface 2414 of the body 241. The guide 243 is also longitudinally disposed, the upper and lower ends of the guide 243 are open, and the upper end of the guide 243 is higher than the upper end of the main body 241.

The baffle 243 is also preferably generally cylindrical and of variable pipe diameter design, and includes an integral first baffle 2431, second baffle 2432 and connecting portion 2433, the second baffle 2432 being downstream of the body 241 along the fume flow path. The first flow guiding portion 2431 may be of an equal pipe diameter design and wrapped around the outer periphery of the main body 241, the interlayer 244 is formed between the main body 241 and the first flow guiding portion 2431, and a lower end portion of the interlayer 244 is open, so that the kitchen indoor ambient air entering through the air inlet 212 of the second housing 21 can enter the interlayer 244 from the lower end portion of the interlayer 244. The connecting portion 2433 is located at an upper end portion of the first flow guiding portion 2431, has a U-shaped groove shape with an opening at a lower end portion, and is configured such that an upper end portion of the main body 241 of the condenser 24 can be engaged into the connecting portion 2433. Alternatively, the connection may be interchanged, in that the slot is formed in the body 241 and the connection 2433 is snapped into the slot. The second flow guiding portion 2432 is a variable-pipe-diameter portion, and the flow cross-sectional area of the second flow guiding portion 2432 is at least partially larger than that of the first flow guiding portion 2431, for example, the flow cross-sectional area is preferably gradually increased from bottom to top, a notch 2434 is formed at the connection between the lower end portion of the second flow guiding portion 2432 and the connecting portion 2433, and the notch 2434 enables the space above the interlayer 244 and the condenser 24 to be in fluid communication. The notches 2434 can have at least two, spaced apart along the circumference of the baffle 243.

When the refrigerating range hood works, the main fan 12 is started, an air inlet (not labeled) of the first shell 11 is started, and oil smoke passes through the smoke exhaust channel 2412, and as shown by an arrow in fig. 6, the inner side wall surface 2413 of the main body 241 of the condenser 24 is radiated; in addition, since the flow guide member 24 adopts a variable-pipe-diameter design, when the oil smoke passes through the second flow guide portion 2432 of the flow guide member 243, a negative pressure region 2435 is formed (the space surrounded by the second flow guide portion 2432 is smaller than the air pressure in the interlayer 244), and the negative pressure can suck air from the gap 2434, and the air is located between the main body 241 and the flow guide member 243, so that the air flow in the interlayer 244 can continuously suck the supplementary negative pressure upwards from the bottom of the interlayer 244, as shown by the arrow in fig. 7, the supplementary flowing external air can dissipate heat of the outer side wall 2414 of the main body 241.

When the main fan 12 is not in operation, the oil drops collected on the guide member 243 will slide downwards along the second guide portion 2432 under the action of gravity, the notch 2434 is designed with a hidden gradient, that is, the upper edge of the notch 2434 corresponds to the radial inner side of the lower edge of the notch 2434, so that the oil drops can enter the inner side wall surface of the first guide portion 2431 along the connecting portion 2433, and it is ensured that the oil drops cannot flow back into the interlayer 244 between the main body 241 and the guide member 243 to pollute the outer side wall surface of the main body 241.

Example two

Referring to fig. 9 to 11, in this embodiment, the difference from the second embodiment is that a separate heat dissipation fan 28 is further disposed adjacent to the condenser 24, the air inlet of the heat dissipation fan 28 (e.g. may be shared with the air inlet 212) is in fluid communication with the environment outside the second housing 21, and the air outlet of the heat dissipation fan 28 is in fluid communication with the interlayer 244. Thus, if the back pressure of the exhaust duct (not shown) of the refrigeration range hood increases, the heat dissipation fan 28 can be turned on, and the heat dissipation air flows from bottom to top in the interlayer 244, preventing the oil smoke from flowing backward into the interlayer 244 in the negative pressure region 2435, thereby polluting the outer side wall 2414 of the main body 241.

To further prevent the oil smoke from flowing back into the interlayer 244, the condenser 24 further includes a valve plate 245, where the valve plate 245 is disposed inside the second flow guiding portion 2432 of the flow guiding member 243, and can open or close the notch 2434, and when open, the interlayer 244 is in fluid communication with the upper end of the condenser 24, see fig. 10 and 11; when closed, the fluid path between the interlayer 244 and the upper end of the condenser 24 is closed, see fig. 12 and 13.

Therefore, when the back pressure of the smoke exhaust pipe is detected to meet the requirement, namely, the back pressure is smaller than the negative pressure of the negative pressure area 2435, the valve plate 245 is opened by utilizing the negative pressure, and the working principle at the moment is the same as that of the first embodiment. When the back pressure of the smoke exhaust pipeline is detected to be not met, namely, the back pressure is larger than or equal to the negative pressure of the negative pressure area 2435, the heat radiation fan 28 is turned on, heat radiation air flows from bottom to top in the interlayer 244, and the smoke of the negative pressure area 2435 is prevented from flowing backwards. The valve plate 245 can further ensure that the smoke backflow in the negative pressure area 2435 is avoided when the negative pressure in the negative pressure area is equal to the back pressure of the smoke exhaust pipeline.

The hidden slope design of the notch 2434 in combination with the valve plate 245 also allows for the negative pressure region to drain oil droplets back into the interlayer 244.

The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.

Claims (11)

1. A refrigeration assembly for a refrigeration range hood comprising a condenser (24), characterized in that:

the condenser (24) comprises a main body (241) capable of conducting heat and a refrigerant channel (242) arranged on the main body (241), wherein the main body (241) is in a pipeline shape, and the refrigerant channel (242) is formed in the wall part of the main body (241);

-the exterior of the body (241) is provided with a hollow flow guide (243), the flow guide (243) comprising:

a first flow guide (2431), an interlayer (244) in fluid communication with the external environment being formed between the first flow guide (2431) and the main body (241); and

The second diversion part (2432), along the oil smoke flow path, the second diversion part (2432) is located at the downstream of the main body (241), a space surrounded by the second diversion part (2432) is in fluid communication with the interlayer (244), the flow cross section area of the second diversion part (2432) is at least partially larger than that of the first diversion part (2431), and the air pressure in the space surrounded by the second diversion part (2432) can be smaller than that in the interlayer (244).

2. The refrigeration assembly of a refrigerated extractor hood of claim 1, wherein: the flow cross-sectional area of the second flow guiding part (2432) gradually increases in a direction away from the first flow guiding part (2431).

3. The refrigeration assembly of a refrigerated extractor hood of claim 1, wherein: the guide member (243) further comprises a connecting portion (2433) between the first guide portion (2431) and the second guide portion (2432);

The connecting part (2433) is in a clamping groove shape recessed in a direction away from the corresponding end part of the main body (241), and the corresponding end part of the main body (241) is clamped into the connecting part (2433); or the end of the main body (241) corresponding to the connecting part (2433) is in a clamping groove shape which is recessed in a direction away from the connecting part (2433), and the connecting part (2433) is clamped into the corresponding end of the main body (241).

4. A refrigeration assembly for a refrigerated extractor hood according to claim 3 wherein: the end part of the second flow guiding part (2432) connected with the connecting part (2433) is provided with a notch (2434), and the notch (2434) enables fluid communication between the interlayer (244) and a space enclosed by the second flow guiding part (2432).

5. The refrigeration assembly for a refrigerated extractor hood of claim 4, wherein: a valve plate (245) capable of opening and closing the notch (2434) is arranged at the notch (2434).

6. The refrigeration assembly for a refrigerated extractor hood of claim 4, wherein: the main body (241) and the guide piece (243) are longitudinally arranged, and the upper edge of the notch (2434) corresponds to the radial inner side of the lower edge of the notch (2434).

7. The refrigeration assembly of a refrigerated extractor hood of any of claims 1-6, wherein: the refrigeration assembly further comprises a heat radiation fan (28) which can blow air entering from the external environment to the space surrounded by the second diversion part (2432) through the interlayer (244).

8. The refrigeration assembly of a refrigerated extractor hood of any of claims 1-6, wherein: the wall portion of the main body (241) includes two heat conductive plates (2411), and the refrigerant channel (242) is formed between the two heat conductive plates (2411).

9. A refrigeration range hood, includes oil smoke absorption subassembly, its characterized in that: the refrigerated extractor hood further comprising a refrigeration assembly of any of claims 1-8, the condenser (24) of the refrigeration assembly being disposed downstream of the extractor hood assembly along the extractor hood flow path.

10. The refrigerated extractor hood of claim 9 wherein: the refrigeration assembly is disposed above the range hood assembly.

11. The refrigerated extractor hood of claim 10 wherein: the oil fume suction assembly comprises a first shell (11) and a main fan (12) arranged in the first shell (11);

The refrigeration assembly further comprises a second shell (21), a compressor (22) and an evaporator (23), wherein the compressor (22), the evaporator (23) and the condenser (24) are arranged in the second shell (21), and the second shell (21) is arranged above the first shell (11).