A refrigeration oil extraction hood

Abstract

The application discloses a kind of refrigeration oil fume exhaust fans, including oil fume exhaust fan component and refrigeration component, the oil fume exhaust fan component includes first shell and fan being arranged in first shell, and the first shell is equipped with the air inlet that can be opened and closed;The refrigeration component includes condenser, on the oil fume flow path, the condenser is located downstream of fan, and the condenser includes the main body that can be heat-conductive and the refrigerant passage being arranged in the wall portion inside main body, and the main body is in the form of pipeline;The outer periphery of the main body is in the heat dissipation passage with heat dissipation gas, and the heat dissipation passage and the fan in first shell are selectively communicated.

Description

TECHNICAL FIELD

[0001] The present application relates to an oil fume purification device, in particular to a refrigeration oil fume extractor. BACKGROUND

[0002] With the improvement of material life, people have higher and higher requirements for kitchen environment. People need to use stoves and other kitchen utensils during cooking, which will generate a large amount of heat in the kitchen, causing the temperature of the whole space to rise and reducing the comfort of the environment. At present, most families use temporary fans to solve this problem, but this method is not only inconvenient, but also occupies the kitchen area.

[0003] Therefore, the prior art has disclosed an oil fume extractor with refrigeration function, which can blow cold air from the casing of the oil fume extractor to cool the kitchen. For example, the oil fume component of the air conditioner hood disclosed in Chinese Patent No. 201810525673.7 includes an oil fume passage; the air conditioner component includes a condenser component, the condenser component includes a condensing air inlet and a condensing air outlet, the condensing air outlet is communicated with the oil fume passage, and the condensing air inlet is independent of the oil fume passage. However, the arrangement of such a condenser utilizes the main fan of the oil fume extractor for heat dissipation, which reduces the amount of oil fume extracted and affects the oil fume extraction effect.

[0004] There is also a kitchen air conditioner disclosed in Chinese Patent No. 202110029969.1, which includes an air conditioning component and an oil fume extractor component, the air conditioning component includes a compressor, a condenser, a throttling element, and an evaporator, the oil fume extractor component includes an exhaust pipe and an exhaust fan in the exhaust pipe, and the condenser is arranged around the outer wall of the exhaust pipe.

[0005] This kitchen air conditioner can utilize oil fume to dissipate heat from the condenser without additional power, but this arrangement requires the oil fume extractor component to be activated when the air conditioning component is working, i.e. part of the refrigeration air produced by the air conditioner will be extracted by the oil fume extractor component and discharged to the flue, causing energy waste and reducing the refrigeration effect in the kitchen. SUMMARY

[0006] The present application solves the technical problems of the prior art and provides a refrigeration oil fume extractor that reduces energy consumption and improves indoor environmental effects.

[0007] The technical solution adopted by the present application to solve the above technical problems is as follows: a refrigeration oil fume extractor, comprising an oil fume extraction component and a refrigeration component, the oil fume extraction component comprising a first housing and a fan arranged in the first housing, the first housing being provided with an air inlet that can be opened and closed; the refrigeration component comprising a condenser, the condenser being located downstream of the fan in the oil fume flow path, characterized in that:

[0008] The condenser comprises a main body capable of conducting heat and a refrigerant channel arranged inside a wall portion of the main body, and the main body is in a hollow pipe shape;

[0009] The outer periphery of the main body is in a heat dissipation channel with heat dissipation gas, and the heat dissipation channel and the fan in the first shell are selectively communicated.

[0010] By selectively communicating the heat dissipation channel of the condenser of the refrigeration assembly and the fan of the oil fume extraction assembly, the refrigeration assembly can be started alone as needed without opening the air inlet of the oil fume extraction assembly, only the fan of the oil fume extraction assembly is opened, the circulation heat dissipation of the condenser can be realized, at the same time, the cold air generated by the refrigeration assembly is avoided from being sucked in due to the opening of the air inlet, and the cold air is ensured to be used to reduce the temperature of the indoor environment of the kitchen without being sucked into the fan and discharged to the flue, the energy consumption of the whole machine is reduced, and better refrigeration effect is realized; the passage between the heat dissipation channel of the condenser and the fan can also be closed as needed, and the condenser is cooled only by the rising of the oil fume.

[0011] Preferably, the condenser further comprises an outer shell arranged at the outer periphery of the main body, the cavity is a sandwich layer formed between the main body and the outer shell, and the sandwich layer is selectively communicated with the fan in the first shell. By forming the sandwich layer, the contact area and contact time of the heat dissipation gas with the main body can be increased, and the heat dissipation efficiency can be improved.

[0012] Further, in order to facilitate the selective communication of the sandwich layer and the first shell, the sandwich layer is connected to the first shell by a connecting pipe and is thereby in fluid communication with the first shell, and a valve is arranged at the connection between the connecting pipe and the first shell to open or close the fluid passage between the connecting pipe and the first shell.

[0013] Preferably, the valve is rotatably connected with the connecting pipe, and the refrigeration and oil fume extraction machine further comprises a movement mechanism for driving the valve to rotate.

[0014] Further, the movement mechanism comprises a driving mechanism and a transmission mechanism, the transmission mechanism comprises a screw rod driven by the driving mechanism to move in a direction perpendicular to the rotation axis of the valve, and the screw rod can be in an extended state and a retracted state, in the extended state, the screw rod lifts the valve to close the fluid passage between the connecting pipe and the first shell, and in the retracted state, the screw rod releases the valve, and the valve extends longitudinally under the action of gravity to open the fluid passage between the connecting pipe and the first shell. By driving the screw rod to move linearly by the driving mechanism, the passage between the heat dissipation channel of the condenser and the fan can be conveniently closed or opened when needed.

[0015] Further, the transmission mechanism further comprises a gear, a gear nut and a screw rod, the driving mechanism is a motor driving the gear to rotate, the rotation axis of the gear and the gear nut is consistent with the moving direction of the screw rod, the gear nut and the gear are engaged, and the gear nut is threadedly connected with the screw rod, so that the output of the motor is converted into linear motion to drive the screw rod.

[0016] Further, to facilitate the definition of the movement track of the screw rod and the position of the gear nut, the movement mechanism further comprises a mounting fixing base, the mounting fixing base has at least two and respectively corresponds to the gear nut and the screw rod, the mounting fixing base is fixedly arranged in the first shell, and the gear nut and the screw rod respectively pass through the corresponding mounting fixing base to be movably connected with the first shell.

[0017] Further, the oil fume suction assembly further comprises a smoke baffle arranged on the first shell and reversibly opening and closing the air inlet.

[0018] Further, the transmission mechanism further comprises a linkage assembly, the driving mechanism and the smoke baffle are drivingly connected through the linkage assembly, so that the structure of the movement mechanism can be simplified.

[0019] Preferably, to ensure a shorter refrigerant heat transfer path, the main body comprises two layers of heat conducting plates, and the refrigerant channel is formed between the two layers of heat conducting plates.

[0020] Further, the refrigeration assembly is arranged above the oil fume suction assembly, and the refrigeration assembly further comprises a second shell, a compressor and an evaporator, the compressor, the evaporator and the condenser are arranged in the second shell, and the second shell is arranged above the first shell, so that the refrigeration assembly can be conveniently installed, and the space occupied on both sides of the oil fume suction assembly is reduced.

[0021] Preferably, the second shell is provided with a partition plate, so that the second shell is divided into a first chamber and a second chamber, the two chambers are isolated from each other, the evaporator is arranged in the first chamber, and the compressor and the condenser are arranged in the second chamber, so that the cold and hot components of the refrigeration assembly are isolated from each other, interference between the components is avoided, and the refrigeration effect is improved.

[0022] Compared with the prior art, the advantages of the present application are that: by selectively communicating the heat dissipation channel of the condenser of the refrigeration assembly with the fan of the oil fume suction assembly, the refrigeration assembly can be started alone as needed, without opening the air inlet of the oil fume suction assembly, only opening the fan of the oil fume suction assembly, the circulating heat dissipation of the condenser can be realized, while avoiding the cold air generated by the refrigeration assembly from being sucked in due to the opening of the air inlet, ensuring that the cold air is used to reduce the temperature of the indoor environment of the kitchen, instead of being sucked in by the fan and discharged to the flue, reducing the energy consumption of the whole machine, and realizing better refrigeration effect; the passage between the heat dissipation channel of the condenser and the fan can also be closed as needed, and the condenser is cooled only by the rising oil fume. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The closing state of the oil fume extractor of the embodiment of the present application is shown in the figure;

[0024] Figure 2 The first housing and the second housing of the closing state of the oil fume extractor of the embodiment of the present application are hidden in the figure;

[0025] Figure 3 The exploded view of the oil fume extractor of the embodiment of the present application is shown in the figure;

[0026] Figure 4 The sectional view of the refrigeration assembly of the oil fume extractor of the embodiment of the present application is shown in the figure;

[0027] Figure 5 The condenser, connecting pipe and valve of the refrigeration assembly of the oil fume extractor of the embodiment of the present application are shown in the figure;

[0028] Figure 6 The exploded view of the condenser, connecting pipe and valve of the refrigeration assembly of the oil fume extractor of the embodiment of the present application is shown in the figure;

[0029] Figure 7 The sectional view of the condenser, connecting pipe and valve of the refrigeration assembly of the oil fume extractor of the embodiment of the present application is shown in the figure;

[0030] Figure 8 The opening state of the oil fume extractor of the embodiment of the present application is shown in the figure; Figure 7

[0031] Figure 9 The opening state of the part of the connecting pipe, valve and movement mechanism of the oil fume extractor of the embodiment of the present application is shown in the figure;

[0032] Figure 10 The exploded view of the movement mechanism of the oil fume extractor of the embodiment of the present application is shown in the figure;

[0033] Figure 11 The opening state of the oil fume extractor of the embodiment of the present application is shown in the figure; ​

[0034] Figure 12 Figure 8 is a sectional view of the closing state of the connecting pipe, valve piece and movement mechanism of the range hood according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described in detail below with reference to the accompanying drawings. In the drawings, like or similar elements are referred to with like or similar reference numerals, and repeated descriptions of like or similar elements can be omitted.

[0036] In the description of the present application, it needs to 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" 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 disclosed embodiments of the present application can be arranged in different directions, these orientation-indicating terms are only illustrative and should not be considered as limiting. For example, "upper" and "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features.

[0037] Reference Figures 1-8 A refrigeration range hood includes a range hood assembly and a refrigeration assembly. The range hood assembly includes a first housing 11 and a fan 12 arranged in the first housing 11. In this embodiment, the range hood assembly is shown in the form of a commonly used side suction type range hood. Alternatively, it can be any form of existing top suction type, low suction type, ceiling type, etc. The first housing 11 can be a combination of one or more housings.

[0038] In this embodiment, the front side of the first housing 11 forms an air inlet 111, and a smoke baffle 14 is arranged at the air inlet 111 to reversibly open and close the air inlet 111. The opening mode of the smoke baffle 14 can also be replaced by the existing translation or rotation combined with translation in the art.

[0039] The range hood assembly and the refrigeration assembly constitute independent modules, respectively. When installed, the refrigeration assembly is mounted on the range hood assembly, so that the refrigeration assembly does not occupy the space on the left and right sides of the first housing 11 of the range hood assembly. In this way, the fan rack (part of the first housing 11) used to arrange the fan 12 can be avoided from affecting the suction effect of the range hood itself. Moreover, the two modules are independently installed, which can meet the needs of new decoration users and replacement of old users.

[0040] The refrigeration assembly comprises a second housing 21, a compressor 22, an evaporator 23, a condenser 24 and a cooling fan 25, wherein the second housing 21 is arranged above the first housing 11, the compressor 22, the evaporator 23, the condenser 24 and the cooling fan 25 are arranged in the second housing 21, and a refrigerant passage is formed between the compressor 22, the evaporator 23 and the condenser 24. The working principle of the refrigeration assembly is the same as that of the prior art.

[0041] The front side of the second housing 21, such as the position close to the top, is provided with a cold air outlet 211, and the evaporator 23 and the corresponding cooling fan 25 can be arranged near the cold air outlet 211. The cold air after heat exchange in the evaporator 23 is blown out from the cold air outlet 211 to the kitchen through the cooling fan 25, so as to provide a comfortable cooking environment temperature for the user. The other sides of the second housing 21, such as the left and right sides, are provided with air inlets 212 to supplement air (room temperature air) into the second housing 21.

[0042] A partition 26 is arranged in the second housing 21, so as to divide the second housing 21 into a first chamber 213 and a second chamber 214, and the two chambers are isolated from each other. The first chamber 213 is a cold chamber, and the evaporator 23 and the corresponding cooling fan 25 are arranged in the first chamber 213. The second chamber 214 is a hot chamber, and the compressor 22 and the condenser 24 are arranged in the second chamber 214.

[0043] The condenser 24 comprises a main body 241 and a refrigerant passage 242. The main body 241 is in the shape of a hollow pipe, which can be a cylinder or a cuboid. The refrigerant passage 242 is formed in the wall of the main body 241, and can be in the shape of a spiral. The wall of the main body 241 comprises two layers of heat-conducting plates 2411, and the refrigerant passage 242 is formed between the two layers of heat-conducting plates 2411. The two layers of heat-conducting plates 2411 only have a gap at the position where the refrigerant passage 242 is formed, and are attached at other positions. Optionally, the heat-conducting plates 2411 are metal plates, such as aluminum plates. Two aluminum plates are hot-rolled and pressed, and the refrigerant passage 242 is formed by blowing between the two aluminum plates, and then the whole is rolled into the required shape. The refrigerant in the refrigerant passage 242 can withstand a pressure of 2.3 MPa after hot rolling, and the refrigerant and the heat-conducting material are in zero-gap contact, so the heat exchange efficiency is very high, and the surface temperature of the condenser is not higher than 50℃ in natural environment. In the existing air conditioner, the fin type or the winding type described in the background art cannot completely realize zero-gap matching between the refrigerant and the heat-conducting material, so the heat transfer is not smooth, which leads to high temperature of the condenser itself, and further affects the overall refrigeration effect of the refrigeration assembly.

[0044] The condenser 24 is arranged in the oil fume flow path downstream of the fan 12, which can be directly connected to the air outlet of the fan 12, connected to the fan 12 through the air outlet cover 13, or connected to the exhaust duct (not shown) as a part of the exhaust duct. That is, the space surrounded by the inner heat-conducting plate 2411 of the main body 241 is configured as an exhaust passage 2412 through which the oil fume discharged by the fan 12 passes before reaching the public flue or being exhausted to the indoor environment. The inner side wall surface of the inner heat-conducting plate 2411 and the outer side wall surface of the outer heat-conducting plate 2411 both constitute heat dissipation surfaces. The inner heat dissipation surface is cooled by the oil fume passing through the exhaust passage 2412, and the outer heat dissipation surface is in contact with the room temperature air entering the second shell 21 from the indoor environment of the kitchen during operation, thereby achieving a certain degree of heat dissipation. The room temperature air constitutes the heat dissipation fluid.

[0045] To further improve the heat exchange efficiency, a hollow outer shell 243 can be arranged outside the main body 241 of the condenser 24, which is adapted to the shape of the main body 241 and has a size larger than that of the main body 241, so as to be arranged at intervals around the outer periphery of the main body 241 to form an interlayer 244 between the outer shell 243 and the outer side wall surface of the main body 241. In this embodiment, the main body 241 is in the form of a hollow pipe, which is arranged longitudinally, especially vertically.

[0046] The interlayer 244 can be in fluid communication with the fan 12 in the first shell 11 through the connecting pipe 27, and the interlayer 244 can be in fluid communication with the external air at the upper end (or other positions). Thus, through the operation of the fan 12, a negative pressure can be formed through the connecting pipe 27 to suck the external air into the interlayer 244 and into the first shell 11 through the connecting pipe 27, and then discharged by the fan 12. Alternatively, the fan 12 can be directly in fluid communication with the cavity in the second shell 21 where the condenser 24 is arranged (the cavity is in communication with the indoor environment of the kitchen). Both the interlayer 244 and the cavity in the second shell 21 are heat dissipation passages with heat dissipation gas, which can be supplemented from the indoor environment of the kitchen.

[0047] The lower end of the connecting pipe 27 extends to the top of the first shell 11, and the top of the first shell 11 forms an opening 112 at a position corresponding to the lower end of the connecting pipe 27, so as to enable the lower end of the connecting pipe 27 to be in fluid communication with the first shell 11. The lower end of the connecting pipe 27 is open, and a valve 28 is arranged at the opening, which can open or close the fluid passage between the connecting pipe 27 and the fan 12 in the first shell 11.

[0048] In this embodiment, the valve 28 is rotatably connected to the lower end of the connecting pipe 27, and the rotation axis of the valve 28 extends in the front-rear direction. The connection between the valve 28 and the connecting pipe 27 is preferably on the side of the connecting pipe 27 away from the fan 12 (i.e. the side of the connecting pipe 27 closer to the second shell 21), so as to facilitate the connection between the valve 28 and the connecting pipe 27. Figure 2The valve 28 is connected to the connecting pipe 27 at a position inside the connecting pipe 27.

[0049] To facilitate the rotation of the valve 28, the refrigeration range hood further comprises a movement mechanism, which comprises a driving mechanism 31 and a transmission mechanism. The transmission mechanism comprises a gear 321, a gear nut 322, a screw rod 323 and mounting seats 324. The rotation axes of the gear 321 and the gear nut 322 both extend in the left-right direction. The moving direction of the screw rod 323 is consistent with the rotation axes of the gear 321 and the gear nut 322, and is perpendicular to the rotation axis of the valve 28. The driving mechanism 31 is preferably an electric motor, which can drive the rotation of the gear 321. The gear nut 322 is threadedly connected with the screw rod 323. The mounting seats 324 are at least two, corresponding to the gear nut 322 and the screw rod 323 respectively, and are fixedly arranged in the first shell 11. The gear nut 322 and the screw rod 323 pass through the corresponding mounting seats 324 respectively, thereby being movably connected with the first shell 11. The gear nut 322 has a gear end which is engaged with the gear 321 to realize transmission. The end of the screw rod 323 away from the gear nut 322 abuts against the valve 28.

[0050] The transmission mechanism can further comprise a linkage assembly 325, which transmissionally connects the driving mechanism 31 and the smoke baffle 14, so that the driving mechanism 31 can also drive the smoke baffle 14 to flip. In this way, the smoke baffle 14 and the valve 28 share the same driving mechanism 31, and the structure of the movement mechanism is simplified. The linkage assembly 325 can also be replaced by other transmission structures in the prior art, as long as it can realize the driving of the smoke baffle 14 by the driving mechanism 31, such as a rocker, a crank, etc. Alternatively, the smoke baffle 14 and the valve 28 can also be driven by independent mechanisms.

[0051] Through the above-mentioned movement mechanism, the following working modes can be realized:

[0052] When preparing food, the refrigeration key of the refrigeration assembly is turned on, the compressor 22 of the refrigeration assembly is started to work, and the fan 12 of the range hood assembly is rotated. However, the driving mechanism 31 is not started, the smoke baffle 14 is in a state of closing the air inlet 111, the screw rod 323 is in a retracted state, the valve 28 is loosened and no force is applied to the valve 28, and the valve 28 is in a state of extending longitudinally downward from the connection position with the connecting pipe 27 under the action of gravity, so as to open the connecting pipe 27 and form a fluid communication with the fan 12, as shown in Figure 1 and Figure 9 .

[0053] At this time, the heat dissipation path of the condenser 24 is that the air flow in the second shell 21 enters the interlayer 244 of the condenser 24, at this time, the flowing air flow cools and dissipates heat to the outer side wall surface of the condenser 24; then enters the first shell 11 through the connecting pipeline 27, and is discharged under the action of the fan 12, the discharged air flow enters the condenser 24, and again cools and dissipates heat to the inner side wall surface of the condenser 24. Thus, the purpose of cooling and heat dissipation of the condenser 24 through the circulating air flow is realized during the preparation of dishes, and the situation that the cold air generated by the evaporator 23 is sucked into the fan 12 does not occur.

[0054] When frying, the oil fume suction function of the oil fume suction assembly is started, the refrigeration assembly continues to work, the driving mechanism 31 is started, the smoke baffle 14 is opened, and the gear 321 rotates in one direction, such as counterclockwise, to drive the gear nut 322 to rotate clockwise, at this time, the screw rod 323 translates away from the left side of the first shell 11 under the action of the gear nut 322, and pushes the valve 28 to rotate until the lower end of the connecting pipeline 27 is closed, see Figure 11 and Figure 12 At this time, the outer side wall surface of the condenser 24 no longer dissipates heat by air flow.

[0055] After frying, the oil fume suction assembly is closed, at this time, the driving mechanism 31 is started, the smoke baffle 14 is closed, and the gear 321 rotates clockwise to drive the gear nut 322 to rotate counterclockwise, at this time, the screw rod 323 translates towards the left side of the first shell 11 under the action of the gear nut 322, and when it returns to the initial position, it no longer exerts force on the valve 28, the valve 28 again extends vertically downward under the action of gravity, and opens the connecting pipeline 27, see Figure 9 .

[0056] The "fluid communication" referred to in the present application refers to the spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part), that is, 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 pipeline, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid flow or a combination thereof.

Claims

1. A refrigerated range hood, comprising a fume extraction component and a refrigeration component, wherein the fume extraction component includes a first housing (11) and a fan (12) disposed within the first housing (11), the first housing (11) having an air inlet (111) that can be opened and closed; the refrigeration component includes a condenser (24), wherein the condenser (24) is located downstream of the fan (12) in the fume flow path, characterized in that: The condenser (24) includes a heat-conducting body (241) and a refrigerant channel (242) disposed inside the wall of the body (241). The body (241) is pipe-shaped, and the space enclosed by the inner side of the body (241) constitutes a smoke exhaust channel (2412) through which the oil fumes discharged by the fan (12) pass. The outer periphery of the main body (241) is located in a heat dissipation channel with heat dissipation gas. The condenser (24) also includes a shell (243) spaced apart on the outer periphery of the main body (241). The heat dissipation channel is a sandwich (244) formed between the main body (241) and the shell (243). The sandwich (244) is connected to the first housing (11) through a connecting pipe (27) and thereby fluidly communicates with the inside of the first housing (11). A valve (28) is provided at the connection between the connecting pipe (27) and the first housing (11) to open or close the fluid passage between the connecting pipe (27) and the first housing (11), thereby selectively communicating the sandwich (244) with the fan (12) inside the first housing (11).

2. The refrigerated range hood according to claim 1, characterized in that: The valve (28) is rotatably connected to the connecting pipe (27), and the refrigerated range hood also includes a motion mechanism for driving the valve (28) to rotate.

3. The refrigerated range hood according to claim 2, characterized in that: The motion mechanism includes a drive mechanism (31) and a transmission mechanism. The transmission mechanism includes a screw (323) driven by the drive mechanism (31) to move in a direction perpendicular to the rotation axis of the valve (28). The screw (323) can be in an extended state and a retracted state. In the extended state, the screw (323) lifts the valve (28) and closes the fluid passage between the connecting pipe (27) and the first housing (11). In the retracted state, the screw (323) releases the valve (28), and the valve (28) extends longitudinally under the action of gravity and opens the fluid passage between the connecting pipe (27) and the first housing (11).

4. The refrigerated range hood according to claim 3, characterized in that: The transmission mechanism further includes a gear (321), a gear nut (322), and a screw (323). The drive mechanism (31) is a motor that drives the gear (321) to rotate. The rotation axes of the gear (321) and the gear nut (322) are consistent with the movement direction of the screw (323). The gear nut (322) meshes with the gear (321), and the gear nut (322) is threadedly connected to the screw (323).

5. The refrigerated range hood according to claim 4, characterized in that: The motion mechanism also includes mounting bases (324), which have at least two and correspond to gear nuts (322) and screws (323) respectively. The mounting bases (324) are fixedly disposed in the first housing (11). The gear nuts (322) and screws (323) pass through the corresponding mounting bases (324) to engage with the first housing (11).

6. The refrigerated range hood according to claim 3, characterized in that: The fume extraction assembly also includes a baffle plate (14) disposed on the first housing (11) and which flips to open and close the air inlet (111).

7. The refrigerated range hood according to claim 6, characterized in that: The transmission mechanism also includes a linkage assembly (325), through which the drive mechanism (31) and the smoke baffle (14) are connected.

8. The refrigerated range hood according to any one of claims 1 to 7, characterized in that: The wall of the main body (241) includes two heat-conducting plates (2411), and the refrigerant channel (242) is formed between the two heat-conducting plates (2411).

9. The refrigerated range hood according to claim 1, characterized in that: The refrigeration component is disposed above the fume extraction component; the refrigeration component also includes a second housing (21), a compressor (22) and an evaporator (23), the compressor (22), the evaporator (23) and the condenser (24) are disposed inside the second housing (21), and the second housing (21) is disposed above the first housing (11).

10. The refrigerated range hood according to claim 9, characterized in that: The second housing (21) is provided with a partition (26), thereby dividing the second housing (21) into a first chamber (213) and a second chamber (214), which are isolated from each other. The evaporator (23) is located in the first chamber (213), and the compressor (22) and condenser (24) are located in the second chamber (214).

Images