Refrigeration range hood

Abstract

The invention discloses a refrigeration extractor hood which comprises an oil smoke suction assembly and a refrigeration assembly, the refrigeration assembly comprises a condenser, and the whole condenser is in a pipeline shape; the refrigeration assembly further comprises a flow guide piece which is arranged in the space defined by the condenser and used for guiding oil smoke entering the condenser to the inner side wall face of the condenser so as to dissipate heat of the condenser. Compared with the prior art, the condenser has the advantages that the condenser is in a pipeline shape, oil smoke passes through the interior of the pipeline, the oil smoke can be used for cooling the condenser, a flow guide part is further arranged, and the oil smoke entering the condenser is guided to the inner side wall face of the condenser through the flow guide part; therefore, most oil smoke can be in full contact with the wall surface of the condenser, so that a better heat exchange effect is achieved, and the refrigeration efficiency of the refrigeration assembly is improved.

Description

Technical Field

[0001] The invention relates to an oil fume purification device, in particular to a refrigeration range hood. Background Art

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

[0003] For this purpose, a range hood with a refrigeration function has been disclosed in the prior art, which can blow out cold air from the housing of the range hood to cool down the kitchen. For example, a Chinese patent with application number 201810525673.7 discloses an air-conditioning range hood, in which the fume assembly of the air-conditioning range hood includes an oil fume channel; the air-conditioning assembly includes a condenser assembly, and the condenser assembly includes a condensation air inlet and a condensation air outlet, the condensation air outlet is connected to the oil fume channel, and the condensation air inlet is independent of the oil fume channel. However, the arrangement of this condenser uses the main fan for oil fume extraction to dissipate heat, which reduces the amount of oil fume sucked and exhausted, affecting the oil fume extraction effect.

[0004] There is also a kitchen air conditioner disclosed in a Chinese patent with application number 202110029969.1, which includes an air conditioning component and a range hood component. The air conditioning component includes a compressor, a condenser, a throttling element, and an evaporator. The range hood component includes an exhaust duct and a exhaust fan in the exhaust duct. The condenser is arranged around the outer wall of the exhaust duct.

[0005] This type of kitchen air conditioner can use oil smoke to dissipate heat from the condenser without the need for additional power. However, since the condenser is wrapped around the exhaust pipe, it is usually not possible to ensure that the condenser can be completely close to the exhaust pipe when it is wrapped, resulting in an air gap layer; and the oil smoke needs to pass through the heat-conducting smoke pipe to exchange heat with the pipe wall of the condenser, and the long heat exchange path will lead to low heat exchange efficiency. In addition, the condenser only dissipates heat through the oil smoke, and most of the oil smoke does not contact the condenser when passing through the condenser, and cannot drive the heat of the condenser, resulting in low heat exchange efficiency. The poor heat dissipation effect of the condenser will directly affect the cooling effect of the range hood air conditioner, so it needs further improvement. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a refrigeration range hood to improve the refrigeration efficiency of the refrigeration component in view of the deficiencies in the above-mentioned prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a refrigeration range hood, including a range hood assembly and a refrigeration assembly, wherein the refrigeration assembly includes a condenser, and is characterized in that:

[0008] The condenser is in the shape of a pipe as a whole;

[0009] The refrigeration assembly also includes a guide member arranged in the space surrounded by the condenser and used for guiding the oil smoke entering the condenser to the inner wall surface of the condenser to dissipate heat from the condenser.

[0010] By making the condenser in the shape of a pipe and allowing oil smoke to pass through the inside of the pipe, the oil smoke can be used to cool the condenser, and a guide piece can be further provided to guide the oil smoke entering the condenser to the inner wall of the condenser. In this way, most of the oil smoke can be fully in contact with the wall of the condenser, thereby achieving a better heat exchange effect and improving the refrigeration efficiency of the refrigeration component.

[0011] According to one aspect of the present invention, along the oil fume flow path, the outer peripheral wall surface of the flow guide gradually inclines toward the inner wall surface of the condenser from upstream to downstream.

[0012] Furthermore, the refrigeration assembly also includes a motion mechanism for driving the guide member to extend and move along the length direction of the condenser, thereby the guide member can be moved into place as needed to achieve better heat dissipation at locations with higher temperatures.

[0013] Preferably, the motion mechanism comprises a motor and a screw driven by the motor and rotating around its own axis, the screw passes through a flow guide, and the flow guide is threadedly connected to the screw.

[0014] Furthermore, the refrigeration assembly also includes a water pump for pumping cooling liquid outside the condenser into the guide member; the outer peripheral wall surface of the guide member is provided with a water inlet for receiving cooling liquid and a water outlet for spraying cooling liquid entering from the water inlet onto the inner wall surface of the condenser, and a water flow channel for fluidly connecting the water inlet and the water outlet is formed in the guide member. In this way, the cooling liquid can be sprayed onto the inner wall surface of the condenser to further improve the heat dissipation effect, and the oil stains on the inner wall surface of the condenser can be cleaned to avoid the long-term adhesion and accumulation of oil stains affecting the heat exchange efficiency of the condenser.

[0015] Furthermore, the refrigeration assembly also includes a water pump for pumping cooling liquid outside the condenser into the guide member; the outer peripheral wall of the guide member is provided with a water inlet for receiving cooling liquid and a water outlet for spraying cooling liquid entering from the water inlet onto the inner wall of the condenser, and a water flow channel for fluidly connecting the water inlet and the water outlet is formed in the guide member; the water pump and the water inlet of the guide member are connected by a water pipe, and the water pipe is a telescopic pipe. In this way, the cooling liquid can be sprayed onto the inner wall of the condenser to further improve the heat dissipation effect, and the oil stains on the inner wall of the condenser can be cleaned to avoid the long-term adhesion and accumulation of oil stains affecting the heat exchange efficiency of the condenser.

[0016] According to another aspect of the present invention, the guide member is in the form of a fan structure driven to rotate by the oil smoke, and the guide member includes a hub and fan blades arranged on the periphery of the hub.

[0017] Furthermore, the refrigeration assembly also includes a water pump for pumping cooling liquid outside the condenser into the guide member; the hub is hollow and can receive cooling liquid, the fan blade is hollow and is in fluid communication with the hub, and the fan blade is provided with a water outlet for spraying cooling liquid entering from the hub onto the inner wall surface of the condenser. Thus, the cooling liquid can be sprayed onto the inner wall surface of the condenser to further improve the heat dissipation effect, and the oil stains on the inner wall surface of the condenser can be cleaned to avoid the long-term adhesion and accumulation of oil stains affecting the heat exchange efficiency of the condenser; in addition, since the guide member is in a rotating state, the spraying of the cooling liquid can be more uniform, and heat dissipation and cleaning can be better achieved.

[0018] Furthermore, the wheel hub is connected to a generator via a transmission shaft, and the generator is electrically connected to the water pump, thereby eliminating the need for the water pump to be connected to an external power source, thereby reducing energy consumption.

[0019] Furthermore, in order to facilitate fluid communication between the water pump and the wheel hub, the transmission shaft is hollow, and the water pump is connected to the transmission shaft through a water pipe to thereby achieve fluid communication.

[0020] Furthermore, the refrigeration component also includes an evaporator, and a water collection tank for collecting condensed water of the evaporator is arranged below the evaporator. The condensed water serves as the cooling liquid. The water pump is fluidly connected to the water collection tank, and the condensed water is used to dissipate heat from the condenser, thereby solving the problem of discharging the condensed water.

[0021] Preferably, the oil fume suction assembly comprises a fan and an air outlet hood arranged at the air outlet of the fan, the condenser is arranged longitudinally, and the lower end of the condenser is connected to the upper end of the air outlet hood.

[0022] Preferably, a downwardly recessed slot is formed at the upper end of the air outlet hood, and the lower end of the condenser is inserted into the slot. The air outlet hood is provided with a water leakage hole on the inner wall surface of the slot, thereby allowing the cooling liquid after heat dissipation and cleaning to be discharged downward from the inside of the range fumes suction assembly to avoid contamination of the outside of the entire machine.

[0023] Preferably, in order to ensure a shorter refrigerant heat transfer path, the condenser includes a heat-conducting main body and a refrigerant channel arranged inside the wall of the main body, and the main body is in a pipe shape.

[0024] Preferably, in order to ensure a shorter refrigerant heat transfer path, the main body includes two layers of heat conducting plates, and the refrigerant channel is formed between the two layers of heat conducting plates.

[0025] Furthermore, the two layers of heat conducting plates have a gap only at a position where the refrigerant channel is formed.

[0026] Furthermore, the refrigeration assembly is arranged on the oil fume suction assembly; 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 on the first shell. Thus, the refrigeration assembly can be conveniently installed, and the space occupied on both sides of the oil fume suction assembly can also be reduced.

[0027] Preferably, a partition is provided in the second shell, thereby dividing the second shell into a first chamber and a second chamber, and the two chambers are isolated from each other. The evaporator is arranged in the first chamber, and the compressor and condenser are arranged in the second chamber, thereby isolating the hot and cold parts of the refrigeration assembly to avoid mutual interference and improve the refrigeration effect.

[0028] Compared with the prior art, the advantages of the present invention are: by making the condenser in the shape of a pipe and allowing oil smoke to pass through the inside of the pipe, the oil smoke can be used to cool the condenser, and a guide member is further provided to guide the oil smoke entering the condenser to the inner wall of the condenser, thereby allowing most of the oil smoke to fully contact the wall of the condenser, thereby achieving a better heat exchange effect and improving the refrigeration efficiency of the refrigeration component; a water channel structure is provided on the guide member, thereby the pumped cooling liquid can be sprayed onto the inner wall of the condenser, further improving the heat dissipation effect, and can clean the oil stains on the inner wall of the condenser, avoiding the adverse effects of the oil stains on heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of a range hood according to a first embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the range hood of the first embodiment of the present invention, in which the range hood assembly and the refrigeration assembly respectively hide part of the housing;

[0031] Figure 3 is a cross-sectional view of a refrigeration assembly of a range hood according to a first embodiment of the present invention;

[0032] Figure 4 The sectional view of the refrigeration assembly and the smoke exhaust duct of the range hood of the first embodiment of the present invention (sectional view and Figure 3 vertical);

[0033] Figure 5 for Figure 4 A schematic diagram of the partial enlargement of Ⅰ;

[0034] Figure 6 It is a schematic diagram of the exploded structure of the condenser, water pump and water pipe of the refrigeration assembly of the range hood according to the first embodiment of the present invention;

[0035] Figure 7 It is a schematic diagram of a flow guide member of a refrigeration assembly of a range hood according to a first embodiment of the present invention;

[0036] Figure 8 It is a cross-sectional view of a flow guide member of a refrigeration assembly of a range hood according to a first embodiment of the present invention;

[0037] Fig. 9 A partial cross-sectional view of a range hood according to a second embodiment of the present invention;

[0038] Fig.10 is a schematic diagram of a flow guide member, a generator and a mounting bracket thereof of a range hood according to a second embodiment of the present invention;

[0039] Fig.11 is a cross-sectional view of a guide member and a generator of a range hood according to a second embodiment of the present invention;

[0040] Fig.12 This is a schematic diagram of the exploded structure of the guide member and the generator of the range hood according to the second embodiment of the present invention. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0043] Embodiment 1

[0044] See also Figure 1 to Figure 5 A refrigeration range hood includes a range hood assembly and a refrigeration assembly, wherein the range hood assembly includes a first shell 11 and a fan 12 disposed in the first shell 11. In this embodiment, the range hood assembly is in the form of a commonly used side-suction range hood. Optionally, it can be any form of existing top suction, low suction, ceiling type, etc. The first shell 11 can be a combination of one or more shells.

[0045] The oil fume suction component and the refrigeration component constitute independent modules respectively. When installed, the refrigeration component is mounted on the oil fume suction component, so that the refrigeration component does not occupy the left and right side spaces of the first shell 11 of the oil fume suction component, thus avoiding the fan frame offset for setting the fan 12 affecting the oil fume suction effect. Moreover, the two modules are installed independently, which can meet the needs of both new decoration users and old customers who are changing their decoration.

[0046] The refrigeration assembly includes a second shell 21, a compressor 22, an evaporator 23, a condenser 24 and a cooling fan 25, wherein the second shell 21 is arranged on the first shell 11, the compressor 22, the evaporator 23, the condenser 24 and the cooling fan 25 can be arranged in the second shell 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 the prior art.

[0047] A cold air outlet 211 is provided on the front side of the second housing 21, such as near the top. The evaporator 23 and its 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 into the kitchen through the cooling fan 25 to provide a comfortable cooking environment temperature for the user. Air inlets 212 are provided on other sides of the second housing 21, such as the left and right sides, to replenish air (room temperature air) into the second housing 21.

[0048] 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, and the two chambers are isolated from each other. The first chamber 213 is a cold chamber, and the evaporator 23 is arranged in the first chamber 213, and the second chamber 214 is a hot chamber, and the compressor 22 and the condenser 24 are arranged in the second chamber 214.

[0049] The condenser 24 includes a main body 241 and a refrigerant channel 242. The main body 241 is in the shape of a hollow pipe, which can be a cylindrical or rectangular parallelepiped shape. The refrigerant channel 242 is formed inside the wall of the main body 241. The main body 241 includes two layers of heat conducting plates 2411. The refrigerant channel 242 is formed between the two layers of heat conducting plates 2411. The two layers of heat conducting plates 2411 have a gap only at the position where the refrigerant channel 242 is formed, and the other parts are all fitted (the gaps in the parts outside the refrigerant channel 242 caused by processing problems, such as bubbles, should be regarded as a situation without gaps). Optionally, the heat conducting plate 2411 is a metal plate, such as an aluminum plate. Two pieces of aluminum plates are hot-rolled and pressed, and the space between the two pieces of aluminum plates is inflated to form the above-mentioned refrigerant channel 242, and then the whole is rolled into a desired shape. After hot rolling, the refrigerant in the refrigerant channel 242 can withstand a pressure of up to 2.3 MPa, and there is zero gap contact between the refrigerant and the heat-conducting material, and the heat exchange efficiency is extremely high, so the surface temperature of the condenser under natural conditions is not higher than 50° C. However, in the fin type commonly used in existing air conditioners or the winding type described in the background technology, the refrigerant and the heat-conducting material cannot be completely matched without gaps, so the heat transfer is not smooth, resulting in a high temperature of the condenser itself, which in turn affects the overall cooling effect of the refrigeration component.

[0050] The cooling medium passage 242 may be spirally wound or parallel refluxed.

[0051] On the oil fume flow path, the condenser 24 is arranged downstream of the fan 12, and it can be directly connected to the air outlet of the fan 12, or it can be connected to the fan 12 through the air outlet cover 13. That is, the space surrounded by the heat conducting plate 2411 of the inner layer of the main body 241 constitutes a smoke exhaust passage 2412 through which the oil fume exhausted by the fan 12 passes before reaching the public flue or being discharged into the room, and the inner wall surface of the inner layer of the heat conducting plate 2411 and the outer wall surface of the outer layer of the heat conducting plate 2411 both constitute heat dissipation surfaces. The inner heat dissipation surface dissipates heat through the oil fume passing through the smoke exhaust passage 2412, and the outer heat dissipation surface contacts the room temperature air entering the second shell 21 from the kitchen indoor environment during operation, and can also achieve a certain degree of heat dissipation. The room temperature air constitutes a heat dissipation fluid.

[0052] The downstream of the condenser 24 is connected to the smoke exhaust duct 3. Preferably, in the present embodiment, the condenser 24 is arranged longitudinally and is cylindrical, matching the shapes and sizes of the air outlet hood 13 and the smoke exhaust duct 3 respectively.

[0053] The refrigeration component also includes a guide member 27, which is arranged inside the space surrounded by the condenser 24, that is, located in the smoke exhaust channel 2412 of the condenser 24. The outer wall surface of the guide member 27 gradually inclines toward the inner wall surface of the condenser 24 from upstream to downstream, and can preferably be in the shape of a truncated cone with a larger upper part and a smaller lower part. When the oil smoke enters the condenser 24, it first contacts the smaller bottom of the guide member 27, and then diffuses outward under the guidance of the guide member 24, and then flows toward the inner wall surface of the condenser 24, thereby realizing efficient heat dissipation of the condenser 24.

[0054] The guide member 27 can move in the condenser 24 along the length extension direction of the condenser 24 (in this embodiment, the up and down direction). For this purpose, the refrigeration assembly also includes a motion mechanism for driving the guide member 27 to move up and down. The motion mechanism is a linear drive module. In this embodiment, the motion mechanism includes a motor 281 and a screw rod 282. The motor 281 can be fixed to the upper end of the condenser 24 and is located in the smoke exhaust pipe 3. The screw rod 282 extends longitudinally in the smoke exhaust channel 2412 of the condenser 24 and is driven by the motor 281 to rotate around its own axis. The screw rod 282 passes through the guide member 27, and the part of the guide member 27 through which the screw rod 282 passes is formed with an internal thread 271. Therefore, the guide member 27 is like a nut as an output end of such a commonly used linear drive module. Through the threaded connection with the screw rod 282, it can make a linear motion when the screw rod 282 rotates. A nut can also be separately arranged in the guide member 27.

[0055] Alternatively, the motion mechanism may also adopt other existing linear drive modules, such as electric push rods, motor gear rack combinations, etc.

[0056] A temperature sensor may be provided in the condenser 24. When a certain position is detected to have a higher temperature, the guide member 27 is driven to move to the position, so that the position with a higher temperature can achieve better heat dissipation. When the refrigeration component is not working and the condenser 24 does not need to be cooled, the guide member 27 may be located near the upper end of the condenser 24 to minimize the smoke exhaust resistance of the guide member 27 at the air outlet of the fan 12 of the oil fume suction component.

[0057] See also Figure 4 , Figure 6 to Figure 8 The refrigeration assembly also includes a water pump 291 and a water pipe 292. The outer peripheral wall of the guide member 27 is provided with a water inlet 272 and a water outlet 273. There may be at least two water outlets 273, which are arranged at intervals along the circumference of the guide member 27. Preferably, the water outlet 273 is arranged near the upper end of the guide member 27. A water flow channel 274 is formed inside the guide member 27, which connects the water inlet 272 and each water outlet 273. The water pipe 292 connects the water pump 291 with the water inlet 272 of the guide member 27. The water pump 291 is connected to a water source, thereby pumping water (or other cooling liquid) into the guide member 27, and spraying it onto the inner wall of the condenser 24 through the water outlet 273, bringing better heat dissipation effect of the condenser 24 and oil cleaning effect of the inner wall of the condenser 24. Since the guide member 27 will rise and fall in the condenser 24 during operation, the water pipe 292 here is a retractable pipe.

[0058] In this embodiment, the water source is the condensed water of the refrigeration assembly. For example, a water collecting tank 231 may be provided below the evaporator 23 to collect the condensed water flowing down from the evaporator 23. The water pump 291 is in fluid communication with the water collecting tank 231. The water pump 291 extracts the condensed water in the water collecting tank 231. Under the pressure of the water pump 291, the condensed water may be ejected from the water outlet 273 of the flow guide 27 onto the inner wall surface of the condenser 24. This not only improves the heat dissipation effect and oil cleaning, but also solves the problem of condensed water discharge.

[0059] Embodiment 2

[0060] See also Figures 9 to 12In this embodiment, the difference from the above-mentioned embodiment 1 is that the guide member 27 has a structure similar to that of a fan, and no longer moves up and down, but is driven by the upward rising oil smoke airflow to realize rotation, and the rotation axis extends in the longitudinal direction. The guide member 27 includes a central hub 275 and blades 276 arranged on the outer periphery of the hub 275. The blades 276 may have at least two blades, which are arranged at intervals along the circumference of the hub 275. Each blade 276 is inclined and bent at a certain angle relative to the axial direction of the guide member 27 (the longitudinal direction shown in the figure), similar to a commonly used axial flow fan. Therefore, when the oil smoke passes through the guide member 27 from bottom to top, it drives the guide member 27 to rotate, and the rotating blades 276 will guide the oil smoke to the inner wall surface of the condenser 24.

[0061] The hub 275 is connected to the generator 30 via the transmission shaft 277, so that when the guide member 27 rotates at high speed under the action of the high-speed oil smoke airflow, the guide member 27 provides kinetic energy to the generator 30, and the generator 30 can generate electricity using the kinetic energy generated by the guide member 27. The generator 30 is electrically connected to the water pump 291 via the conductive wire 301, and the electric energy generated by the generator 30 is used as the power source of the water pump 291, thereby reducing the waste of electric power resources caused by the external power supply of the water pump 291. In addition, the generator 30 is rotatably mounted with the condenser 24 via the mounting bracket 302.

[0062] The hub 275, the blades 276 and the transmission shaft 277 are all hollow inside, so the hub 275 can be used as a water storage tank, connected to the transmission shaft 277 so that the hub 275 and the transmission shaft 277 are fluidly connected, and the blades 276 and the hub 275 are also fluidly connected. The water outlet 273 of the guide member 27 is opened at the upper end of the blade 276, and at least two outlets can be opened, which are arranged at intervals along the radial direction of the guide member 27. When the water pump 291 continuously pressurizes the cooling liquid from the transmission shaft 277, such as condensed water, the low-temperature condensed water is transmitted to the blade 276 and sprayed out through the water outlet 273 on the blade 276. The water outlet 273 has a certain pitch angle, so as to ensure that the ejected water flow has a certain head, and is inclined toward the inner wall surface of the condenser 24, so that the water flow can be sprayed onto the inner wall surface of the condenser 24. Since the guide member 27 is always in a rotating state during operation, the condensed water can be fully sprayed onto the inner wall surface of the condenser 24, thereby bringing a better cooling effect.

[0063] The water pump 291 is connected to the transmission shaft 277 through the water pipe 292 to achieve fluid communication, and the water pipe 292 and the transmission shaft 277 can achieve relative rotation. The cooling liquid connected to the water pump 291 is the same as the above-mentioned embodiment 1.

[0064] The lower end of the condenser 24 is connected to the upper end of the air outlet hood 13. The upper end of the air outlet hood 13 is formed with a U-shaped slot 131 that is concave downward. The lower end of the condenser 24 can be inserted into the slot 131. The air outlet hood 13 is provided with a water leakage hole 132 on the inner wall of the slot 131. Therefore, the water sprayed into the condenser 24 by the guide member 27 flows downward along the inner wall of the condenser 24 due to gravity after cooling the condenser 24 and cleaning the oil stains. Finally, it gathers in the slot 131 of the air outlet hood 13, and then flows into the cavity of the oil suction component through the water leakage hole 132 on the slot 131. Finally, the condensed water will flow into the oil cup (not marked) of the oil fume suction component. This structure is also applicable to the first embodiment.

[0065] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A refrigeration range hood, comprising a range hood assembly and a refrigeration assembly, wherein the refrigeration assembly comprises a condenser (24), characterized in that: The condenser (24) is in the shape of a pipe as a whole; The refrigeration assembly further comprises a guide member (27) disposed in the space enclosed by the condenser (24) and used for guiding the oil smoke entering the condenser (24) toward the inner wall surface of the condenser (24) to dissipate heat from the condenser (24).

2. The refrigeration range hood according to claim 1, characterized in that: Along the oil fume flow path, the outer peripheral wall surface of the flow guide (27) gradually inclines toward the inner wall surface of the condenser (24) from upstream to downstream.

3. The refrigeration range hood according to claim 2, characterized in that: The refrigeration assembly also includes a motion mechanism for driving the guide member (27) to extend and move along the length direction of the condenser (24).

4. The refrigeration range hood according to claim 3, characterized in that: The motion mechanism comprises a motor (281) and a screw rod (282) driven by the motor (281) and rotating around its own axis; the screw rod (282) passes through a flow guide (27); and the flow guide (27) is threadedly connected to the screw rod (282).

5. The refrigeration range hood according to claim 2, characterized in that: The refrigeration assembly further comprises a water pump (291) for pumping cooling liquid outside the condenser (24) into the guide member (27); The outer wall surface of the guide member (27) is provided with a water inlet (272) for receiving cooling liquid and a water outlet (273) for spraying the cooling liquid entering through the water inlet (272) to the inner wall surface of the condenser (24), and a water flow channel (274) is formed in the guide member (27) to connect the water inlet (272) and the water outlet (273) fluid.

6. The refrigeration range hood according to claim 3, characterized in that: The refrigeration assembly further comprises a water pump (291) for pumping cooling liquid outside the condenser (24) into the guide member (27); The outer peripheral wall surface of the flow guide (27) is provided with a water inlet (272) for receiving cooling liquid and a water outlet (273) for spraying the cooling liquid entering through the water inlet (272) to the inner wall surface of the condenser (24), and a water flow channel (274) for fluidly connecting the water inlet (272) and the water outlet (273) is formed in the flow guide (27); The water pump (291) and the water inlet (272) of the flow guide member (27) are connected via a water pipe (292), and the water pipe (292) is a telescopic pipe.

7. The refrigeration range hood according to claim 1, characterized in that: The flow guide (27) is in the form of a fan structure driven to rotate by oil smoke, and the flow guide (27) comprises a hub (275) and fan blades (276) arranged on the periphery of the hub (275).

8. The refrigeration range hood according to claim 7, characterized in that: The refrigeration assembly further comprises a water pump (291) for pumping cooling liquid outside the condenser (24) into the guide member (27); The hub (275) is hollow and can receive cooling liquid, the fan blade (276) is hollow and is fluidically connected to the hub (275), and the fan blade (276) is provided with a water outlet (273) for spraying the cooling liquid entering from the hub (275) onto the inner wall surface of the condenser (24).

9. The refrigeration range hood according to claim 8, characterized in that: The wheel hub (275) is connected to a generator (30) via a transmission shaft (277), and the generator (30) is electrically connected to a water pump (291).

10. The refrigeration range hood according to claim 9, characterized in that: The transmission shaft (277) is hollow, and the water pump (291) is connected to the transmission shaft (277) via a water pipe (292) to achieve fluid communication.

11. The refrigeration range hood according to claim 5 or 8, characterized in that: The refrigeration component also includes an evaporator (23), and a water collecting tank (231) for collecting condensed water of the evaporator (23) is arranged below the evaporator (23). The condensed water serves as the cooling liquid, and the water pump (291) is fluidically connected to the water collecting tank (231).

12. The refrigeration range hood according to claim 5 or 8, characterized in that: The oil fume suction assembly comprises a fan (12) and an air outlet hood (13) arranged at the air outlet of the fan (12); the condenser (24) is arranged longitudinally, and the lower end of the condenser (24) is connected to the upper end of the air outlet hood (13).

13. The refrigeration range hood according to claim 12, characterized in that: The upper end of the air outlet cover (13) is formed with a downwardly recessed slot (131), the lower end of the condenser (24) is inserted into the slot (131), and the air outlet cover (13) is provided with a water leakage hole (132) on the inner wall surface of the slot (131).

14. The refrigeration range hood according to claim 1, characterized in that: The condenser (24) includes a heat-conducting main body (241) and a refrigerant channel (242) arranged inside the wall of the main body (241); the main body (241) is in the shape of a pipe.

15. The refrigeration range hood according to claim 14, characterized in that: The main body (241) includes two layers of heat-conducting plates (2411), and the refrigerant channel (242) is formed between the two layers of heat-conducting plates (2411).

16. The refrigeration range hood according to claim 1, characterized in that: The refrigeration component is arranged on the oil fume suction component; the refrigeration component also includes a second shell (21), a compressor (22) and an evaporator (23); the compressor (22), the evaporator (23) and the condenser (24) are arranged in the second shell (21); and the second shell (21) is arranged on the first shell (11).

17. The refrigeration range hood according to claim 16, characterized in that: A partition (26) is arranged in the second shell (21), thereby dividing the second shell (21) into a first chamber (213) and a second chamber (214), the two chambers being isolated from each other, the evaporator (23) being arranged in the first chamber (213), and the compressor (22) and the condenser (24) being arranged in the second chamber (214).

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