Refrigeration range hood

Abstract

The utility model discloses a refrigeration extractor hood which comprises an oil smoke suction assembly and a refrigeration assembly, the oil smoke suction assembly comprises a fan frame and a fan system arranged in the fan frame, and the refrigeration assembly comprises a compressor, an evaporator and a condenser; the fan frame is formed by splicing plates or integrally, at least one part of the plates forms the condenser, the condenser comprises a main body and a refrigerant channel formed in the plate body of the main body, and therefore refrigerants in the refrigerant channel make direct contact with the main body. Compared with the prior art, the air conditioner has the advantages that at least one part of the fan frame is used for forming the condenser of the refrigeration assembly, high-speed airflow in the fan frame is used for efficiently dissipating heat of the condenser, the overall size of the fan frame is large, and after the fan frame and the condenser are made into a whole, the heat dissipation effect is good. High-temperature refrigerants can be efficiently cooled through the large cooling area of the condenser, the condenser does not need to be additionally provided with a cooling fan for cooling, and cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to an oil fume purification device, especially a refrigeration oil fume extractor. BACKGROUND

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

[0003] The prior art has disclosed an oil fume extractor with refrigeration function, which can blow cold air from the shell of the oil fume extractor to cool the kitchen. How to improve the heat dissipation effect of the condenser to improve the refrigeration efficiency is an important problem to be solved for this oil fume extractor.

[0004] The existing oil fume extractor with refrigeration function usually places the condenser of the refrigeration assembly at the front end of the centrifugal fan of the oil fume extractor (such as the refrigeration oil fume extractor disclosed in Chinese patent application No. 202322007785.2) or at the rear end of the centrifugal fan (such as the kitchen structure disclosed in Chinese patent application No. 202311126184.1). However, if the condenser is placed at the front end of the centrifugal fan of the oil fume extractor, part of the air volume needs to be used for heat dissipation of the condenser, which will inevitably divert part of the air volume of the oil fume extractor, resulting in the decrease of the oil fume extraction effect and the occurrence of the oil fume running phenomenon. If the condenser is placed at the rear end of the centrifugal fan, the oil fume stains will inevitably contaminate the surface of the condenser, resulting in the decrease of the heat dissipation effect of the condenser and the influence on the refrigeration effect of the refrigeration oil fume extractor.

[0005] In addition, the condensate water of the refrigeration assembly of the oil fume extractor is directly discharged into the sewer or the water receiving box without being utilized. Directly discharging the condensate water into the water receiving box is also not a good solution. Affected by air humidity, the amount of condensate water generated is different, which requires the design of the capacity of the water receiving box. It is also inconvenient for users to pour out the condensate water in the water receiving box. When the amount of condensate water generated is large, the user needs to process the condensate water very frequently. Moreover, the breeding of bacteria and viruses in the condensate water box is not conducive to the health of the user, and the bacteria and viruses may enter the food through the oil fume extractor. The scheme of discharging the condensate water into the sewer will bring about the problem of installation of the machine and the problem of the layout of the condensate water pipeline.

[0006] Therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0007] The first technical problem to be solved by the utility model is to provide a refrigeration oil fume extractor to improve the refrigeration effect and the refrigeration efficiency in view of the deficiencies of the prior art.

[0008] The second technical problem to be solved by the utility model is to provide a refrigeration range hood to prevent the water storage box of the refrigeration assembly from storing condensate water for a long time to breed bacteria and viruses.

[0009] The utility model solves the above-mentioned first technical problem by adopting the technical scheme of a refrigeration range hood, which comprises a range hood assembly and a refrigeration assembly, the range hood assembly comprises a fan frame and a fan system arranged in the fan frame, and the refrigeration assembly comprises a compressor, an evaporator and a condenser.

[0010] The fan frame is integrally formed by plate pieces or is integrally formed, at least a part of the plate pieces is configured as the condenser, and the condenser comprises a main body and a refrigerant channel formed in the plate body of the main body, so that the refrigerant in the refrigerant channel directly contacts the main body.

[0011] At least a part of the fan frame is configured as the condenser of the refrigeration assembly, the high-speed airflow in the fan frame is used for high-efficiency heat dissipation of the condenser, the overall size of the fan frame is large, and after the fan frame and the condenser are integrally formed, the large heat dissipation area of the fan frame can be used for high-efficiency heat dissipation of the high-temperature refrigerant, the condenser does not need to be provided with a separate heat dissipation fan for heat dissipation, the cost is lower, the refrigerant directly contacts the main body, the main body directly contacts the oil fume, the heat transfer path is short, and the heat dissipation effect is further improved.

[0012] Preferably, the main body comprises two layers of heat-conducting plates, and the refrigerant channel is directly formed between the two layers of heat-conducting plates.

[0013] Preferably, the plate pieces of the fan frame are a front plate, a rear plate, side plates and a top plate, the front plate and the rear plate are arranged in front of and behind each other, the side plates have two, one of the side plates is arranged between the left side end portions of the front plate and the rear plate, the other side plate is arranged between the right side end portions of the front plate and the rear plate, the top plate is arranged on the top of the front plate, the rear plate and the side plates, and at least one of the front plate, the rear plate, the side plates and the top plate is configured as the condenser of the refrigeration assembly.

[0014] Further, the refrigeration assembly further comprises a transition water tank and a refrigerant pipeline, the transition water tank is arranged below the evaporator to receive the condensate water generated by the evaporator, and the refrigerant pipeline sequentially connects the compressor, the evaporator, the condenser and the compressor to make the refrigerant circulate and flow, and the refrigerant pipeline from the compressor is connected to the evaporator after passing through the transition water tank.

[0015] The low-temperature flowing condensate water generated during the operation of the refrigeration assembly is used for pre-cooling the high-temperature refrigerant from the compressor, so that the refrigerant before entering the condenser is pre-cooled once, and therefore the heat conversion efficiency of the refrigeration assembly is higher, and the refrigeration effect is better.

[0016] Preferably, the refrigeration assembly further comprises a water pan arranged below the evaporator to receive the condensed water generated by the evaporator, the water pan is provided with a water guide hole, the top of the transition water tank is open and opposite to the water guide hole, so that the transition water tank does not occupy too much space and can receive the condensed water of the evaporator.

[0017] Further, the refrigeration assembly further comprises a water receiving box below the transition water tank, the transition water tank and the water receiving box are in fluid communication through a first water guide pipe.

[0018] Further, the oil fume suction assembly further comprises a smoke collecting hood below the fan frame, the refrigeration assembly further comprises a water pan and a water receiving box, the water pan is arranged below the evaporator to receive the condensed water generated by the evaporator, the water receiving box is in fluid communication with the water pan, and the water receiving box is pullably arranged in the smoke collecting hood, so that the condensed water can be released conveniently.

[0019] Further, the water receiving box is provided with a water level sensor for detecting the water level of the condensed water in the water receiving box, so as to remind the user to handle in time when the water level exceeds the warning line.

[0020] The technical solution for solving the second technical problem is that the refrigeration assembly further comprises a water receiving box for storing the condensed water generated by the evaporator and a sterilization assembly for sterilizing and purifying the condensed water in the water receiving box.

[0021] The sterilization assembly can sterilize and disinfect the condensed water in the water receiving box, so as to prevent bacteria and viruses from breeding in the stored condensed water for a long time and to avoid affecting the cooking food.

[0022] Preferably, in order to arrange the sterilization assembly, the oil fume suction assembly further comprises a smoke collecting hood below the fan frame, the smoke collecting hood is provided with an air inlet, the smoke collecting hood is provided with a flow guide plate, the water receiving box is arranged in the smoke collecting hood and is isolated from the air inlet by the flow guide plate, and the sterilization assembly comprises an ultraviolet sterilization module arranged above the water receiving box.

[0023] Further, the sterilization assembly further comprises an exhaust pipe, one end of the exhaust pipe is arranged above the water receiving box, the other end of the exhaust pipe is connected to the flow guide plate, the flow guide plate is provided with a ventilation hole at the connection position of the exhaust pipe, so that the exhaust pipe and the fan frame are in fluid communication, and thus the ozone generated by the ultraviolet sterilization module can be discharged in time by using the fan system of the oil fume suction assembly, so as to avoid the harm of ozone to the user's health.

[0024] Further, the oil fume extractor with refrigeration function further comprises an outer cover arranged outside the fan frame and the evaporator, and a cold air outlet is arranged on the outer cover for blowing the cold air after heat exchange with the evaporator.

[0025] The refrigeration assembly further comprises a water collecting box for storing the condensed water generated by the evaporator and an atomizer for atomizing the condensed water in the water collecting box and blowing the atomized condensed water with the cold air. Thus, part of the condensed water can be consumed, the amount of the condensed water in the water collecting box is reduced, the frequency of pouring out the water collecting box is reduced, and better user experience is brought.

[0026] Preferably, the refrigeration assembly further comprises a heat dissipation fan for discharging the cold air after heat exchange with the evaporator, the outlet of the heat dissipation fan and the cold air outlet on the outer cover are connected by an air outlet pipe to realize fluid communication, and the outlet of the atomizer is communicated into the air outlet pipe.

[0027] Compared with the prior art, the oil fume extractor with refrigeration function has the following advantages: at least a part of the fan frame is used to form the condenser of the refrigeration assembly, the high-speed airflow in the fan frame is used to efficiently cool the condenser, the overall size of the fan frame is large, the condenser is integrated with the fan frame, the large heat dissipation area of the condenser can efficiently cool the high-temperature refrigerant, the condenser does not need to be additionally provided with a heat dissipation fan, the cost is lower, the refrigerant directly contacts the main body, the main body directly contacts the oil fume, the heat transfer path is short, and the heat dissipation effect is further improved; the low-temperature flowing condensed water generated by the evaporator is used to pre-cool the high-temperature refrigerant, the refrigerant is pre-cooled once before entering the condenser, the efficient conversion of the refrigerant medium on the condenser is realized, the refrigeration effect is better, the sterilization assembly is used to disinfect and sterilize the condensed water in the water collecting box, and bacteria and viruses generated by long-time storage of the condensed water are prevented. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a schematic view of the oil fume extractor with refrigeration function according to an embodiment of the present application;

[0029] Figure 2 FIG. 3 is a schematic view of the hidden outer cover of the oil fume extractor with refrigeration function according to an embodiment of the present application (viewed from back to front);

[0030] Figure 3 FIG. 4 is a schematic view of the hidden outer cover of the oil fume extractor with refrigeration function according to an embodiment of the present application (viewed from front to back);

[0031] Figure 4 FIG. 5 is an exploded structural schematic view of the fan frame and the fan system of the oil fume extractor with refrigeration function according to an embodiment of the present application;

[0032] Figure 5 FIG. 6 is a sectional view of the fan frame of the oil fume extractor with refrigeration function according to an embodiment of the present application;

[0033] Figure 6 FIG. 7 is a sectional view of the fan frame of the oil fume extractor with refrigeration function according to an embodiment of the present application;Figure 5 a local I amplification schematic diagram;

[0034] Figure 7 a schematic diagram of a refrigeration assembly of the range hood according to an embodiment of the present application;

[0035] Figure 8 a sectional view of the refrigeration assembly of the range hood according to an embodiment of the present application;

[0036] Figure 9 a sectional view of the smoke collecting cover of the smoke collecting assembly, the water collecting box of the refrigeration assembly and the sterilization module of the range hood according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numbers represent the same or similar elements or elements having the same or similar functions.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. Since the embodiments disclosed in the present application can be arranged in different directions, these terms indicating the direction are only as an illustration and should not be regarded as a limitation. For example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can explicitly or implicitly include one or more features.

[0039] Referring to Figures 1-6 A refrigeration range hood, comprising a smoke collecting assembly and a refrigeration assembly, the smoke collecting assembly comprising a smoke collecting cover 11, a fan frame 12 arranged above the smoke collecting cover 11, and a fan system 13 arranged in the fan frame 12. The refrigeration assembly comprises a compressor 21 and an evaporator 22. The width of the smoke collecting cover 11 in the left-right direction is greater than the fan frame 12, and the fan frame 12 is offset relative to the smoke collecting cover 11, such as being arranged above the left side or the right side of the smoke collecting cover 11. The above-mentioned compressor 21 and evaporator 22 are arranged above the smoke collecting cover 11 and located at the side of the fan frame 12, such as being located at the right side of the fan frame 12 in the present embodiment.

[0040] Therefore, the whole structure of the range hood is simple and compact, and the oil fume suction assembly and the refrigeration assembly are designed in an integrated manner, without the need for additional space to install the refrigeration assembly.

[0041] The fan frame 12 is made by splicing or integrally forming the plate members. In the present embodiment, the plate members include a front plate 121, a rear plate 122, side plates 123, and a top plate 124. The front plate 121 and the rear plate 122 are arranged in front of and behind each other, the side plates 123 have two pieces, one of which is arranged between the left end portions of the front plate 121 and the rear plate 122, and the other of which is arranged between the right end portions of the front plate 121 and the rear plate 122, and the top plate 124 is arranged on top of the front plate 121, the rear plate 122, and the side plates 123. Thus, the fan frame 12 is formed in the shape of a hollow cuboid by cooperation of the front plate 121, the rear plate 122, the side plates 123, and the top plate 124. The plate members can also include other necessary parts constituting the fan frame 12.

[0042] At least one of the front plate 121, the rear plate 122, the side plates 123, and the top plate 124 of the fan frame 12 is configured as a condenser of the refrigeration assembly. In the present embodiment, the rear plate 122 is configured as the condenser. The fan system 13 includes at least a suction port 131 of the rear plate 122 facing the rear side (i.e., facing the rear plate 122). The condenser includes a main body 1221 in the shape of a flat plate and a refrigerant passage 1222 formed inside the plate body of the main body 1221 (here, the inside of the plate body refers to the inside of the plate body itself rather than the inside of the space enclosed by the main body 1221). The main body 1221 includes two layers of heat-conducting plates 12211, and the refrigerant passage 1222 is formed between the two layers of heat-conducting plates 12211. The two layers of heat-conducting plates 12211 only have a gap at the position where the refrigerant passage 1222 is formed, and are otherwise in close contact. Optionally, the heat-conducting plates 12211 are metal plates, such as aluminum plates. Two aluminum plates are hot-rolled and profiled, and the refrigerant passage 1222 is formed between the two aluminum plates by blowing or wire cutting. The refrigerant in the refrigerant passage 1222 can withstand a pressure of up to 2.3 MPa after hot rolling, and the refrigerant is in zero-gap contact with the heat-conducting plates 12211 (the refrigerant passage 1222 does not need to be formed by other pipe components, but is directly formed between the two layers of heat-conducting plates 12211), and the heat exchange efficiency is extremely high, so the surface temperature of the condenser under natural environment is not higher than 50℃. In existing air conditioners, the fin type or the winding type described in the background art cannot completely eliminate the gap between the refrigerant and the heat-conducting material, so the heat transfer is not smooth, resulting in a high temperature of the condenser itself, which affects the overall refrigeration effect of the refrigeration assembly.

[0043] Thus, at least a part of the fan frame 12 is used to form the condenser of the refrigeration assembly, and the high-speed airflow in the fan frame 12 is used to efficiently cool the condenser. Moreover, the fan frame 12 has a large overall size, and after being integrated with the condenser, the large heat dissipation area of the fan frame 12 can be used to efficiently cool the high-temperature refrigerant. The condenser does not need to be provided with a separate cooling fan, and the cost is lower. The suction port 131 of the fan system 13 faces the condenser, which is more conducive to quickly removing heat. The refrigerant directly contacts the main body 1221 that is directly in contact with the oil fume, and the heat transfer path is short, which further improves the heat dissipation effect.

[0044] The refrigeration principle of the compressor 21, the evaporator 22, and the condenser of the refrigeration assembly is the same as the air conditioning refrigeration principle of the prior art.

[0045] The extractor hood further includes an outer cover 3 that is arranged outside the fan frame 12, the compressor 21 of the refrigeration assembly, and the evaporator 22 of the refrigeration assembly. The outer cover 3 is formed with a cold air outlet 31 and an air inlet 32. The cold air outlet 31 can be arranged on the front side of the outer cover 3 near the top, and the air inlet 32 can be arranged on the side of the outer cover 3 near the evaporator 22, for example, the right lower part in this embodiment. The refrigeration assembly further includes a cooling fan 23 that is arranged in the outer cover 3. The cooling fan 23 sucks the air in the kitchen indoor through the air inlet 32, exchanges heat with the evaporator 22, and then blows the cooled air out of the kitchen indoor through the cold air outlet 31. The outlet of the cooling fan 23 and the cold air outlet 31 of the outer cover 3 are connected by an outlet pipe 231 to realize fluid communication.

[0046] In combination with Figure 7 and Figure 8 , a water collecting tray 24 is arranged below the evaporator 22. During the refrigeration process, a large amount of condensed water is generated on the surface of the evaporator 22, and the condensed water flows to the water collecting tray 24 under the action of gravity. A transition water tank 25 is arranged below the water collecting tray 24. The transition water tank 25 is arranged above the smoke hood 11 and can be arranged adjacent to the compressor 21 to make full use of the space. The water collecting tray 24 is provided with a water guide hole 241, and the top of the transition water tank 25 is open and opposite to the water guide hole 241. Thus, the condensed water in the water collecting tray 24 can enter the transition water tank 25 through the water guide hole 241.

[0047] The refrigeration assembly further comprises a refrigerant pipeline 26, which sequentially connects the compressor 21, the evaporator 22, the condenser (the refrigerant passage 1222 of the condenser) and the compressor 21, so that the refrigerant can flow in the passage. The refrigerant pipeline 26 from the compressor 21 is connected to the evaporator 22 upwardly after passing through the transition water tank 25. In this way, the condensed water stored in the transition water tank 25 pre-cools the high-temperature refrigerant from the end of the compressor 21. The part of the refrigerant pipeline 26 in the transition water tank 25 can be arranged in a back-and-forth bending manner to prolong the time of the refrigerant flowing in the transition water tank 25.

[0048] The refrigeration assembly further comprises a water collecting box 27, which is located below the transition water tank 25 and, in this embodiment, on the smoke hood 11. The condensed water in the transition water tank 25 flows to the water collecting box 27 after being warmed. Since the low-temperature condensed water is continuously generated during the refrigeration process, the condensed water in the transition water tank 25 can be kept at a low temperature. The continuously low-temperature condensed water flows through the refrigerant pipeline 26 from the compressor 21 to pre-cool the refrigerant.

[0049] The transition water tank 25 and the water collecting box 27 are in fluid communication through a first water guide pipe 252. The top of the water collecting box 27 is open. One end of the first water guide pipe 252 is connected to the bottom of the transition water tank 25 and is in fluid communication with the transition water tank 25. The other end of the first water guide pipe 252 extends into the smoke hood 11 and is located above the water collecting box 27, so that the condensed water in the transition water tank 25 can be introduced into the water collecting box 27.

[0050] The water collecting box 27 is provided with a water level sensor 271. When the amount of water in the water collecting box 271 reaches a certain amount, the water level sensor 271 will give a full water alarm to remind the user to pour out the condensed water. The water collecting box 27 is arranged in the smoke hood 11 in a pullable manner. The front side of the smoke hood 11 is provided with an opening 111 for the water collecting box 27 to enter and exit, so that the user can access the water collecting box 27 and the water collecting box 27 can enter and exit the smoke hood 11.

[0051] The refrigeration assembly further comprises a sterilization assembly, which comprises an ultraviolet sterilization module 281, such as an ultraviolet lamp, arranged above the water collecting box 27. The ultraviolet sterilization module 281 will automatically start when it is detected that the water quality does not meet the preset cleanliness requirement (for example, a water quality detection sensor can be arranged in the water collecting box 27), and sterilize and purify the condensed water in the water collecting box 27.

[0052] The flow guide plate 14 is arranged in the smoke hood 11, and can guide the oil fume sucked into the smoke hood 11 to the fan frame 12 quickly. The flow guide plate 14 is generally provided with two plates, which are arranged oppositely left and right in the smoke hood 11, and the two plates are extended gradually and oppositely inclined from bottom to top. The bracket 15 is arranged on one side of the flow guide plate 14 (the right side in the embodiment), and the water receiving box 27 is arranged on the bracket 15 and is slidably supported in the smoke hood 11. The bottom of the smoke hood 11 is provided with an air inlet 111 (which can be side suction, top suction, low suction, etc.), and the flow guide plate 14 also separates the water receiving box 27 and the air inlet 111 (i.e. is separated from the channel through which the oil fume in the smoke hood 11 passes), for example, the top end of the flow guide plate 14 is connected to the top of the smoke hood 11, and the bottom end of the flow guide plate 14 is connected to the outside of the air inlet 111 at the bottom of the smoke hood 11.

[0053] Referring to Figures 7-9 The sterilization assembly further comprises an exhaust pipe 282, one end of the exhaust pipe 282 is arranged above the water receiving box 27, and the other end is connected to the corresponding flow guide plate 14. The flow guide plate 14 is provided with a ventilation hole 141 at the position connected to the exhaust pipe 282, so that the exhaust pipe 282 and the channel through which the oil fume in the smoke hood 11 passes are in fluid communication, and further in fluid communication with the fan system 13 in the fan frame 12. When the ultraviolet sterilization module 281 works, the fan system 13 also operates at a low speed, and the ozone generated by the ultraviolet sterilization module 281 is discharged to the public flue through the exhaust pipe 282 and the fan system 13.

[0054] In order to reduce the cleaning frequency of the water receiving box 27, the refrigeration assembly further comprises an atomizer 29, and the water receiving box 27 is further connected to the atomizer 29 through a second water guide pipe 272. The outlet of the atomizer 29 is communicated to the air outlet pipe 231, and the atomizer 29 atomizes the condensed water from the water receiving box 27 and then introduces the condensed water into the air outlet pipe 231, so as to realize partial treatment of the condensed water. The condensed water is atomized and discharged to the kitchen space through the cold air outlet 31.

[0055] The "fluid communication" in the utility model refers to the spatial position relationship between two components or parts (hereinafter referred to as the first part and the second part), i.e. the fluid (gas, liquid or mixture of the two) can flow or / and be transported from the first part to the second part along the flow path. 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, 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 to flow, or a combination thereof.

Claims

1. A refrigeration range hood, comprising a fume suction assembly and a refrigeration assembly, the fume suction assembly comprising a fan frame (12) and a fan system (13) arranged in the fan frame (12), the refrigeration assembly comprising a compressor (21), an evaporator (22) and a condenser; characterized in that: the fan frame (12) is made by plate assembly or one-piece, at least one part of the plate is configured as the condenser, the condenser comprises a main body (1221) and a refrigerant channel (1222) formed in the plate body of the main body (1221), so that the refrigerant in the refrigerant channel (1222) is in direct contact with the main body (1221).

2. The refrigerant oil extraction hood as claimed in claim 1, wherein: The main body (1221) comprises two layers of heat-conducting plates (12211), and the refrigerant channel (1222) is directly formed between the two layers of heat-conducting plates (12211).

3. The oil-suction refrigerating range hood according to claim 1, characterized in that: The plate of the fan frame (12) is a front plate (121), a rear plate (122), a side plate (123) and a top plate (124), the front plate (121) and the rear plate (122) are arranged in front of and behind each other, the side plate (123) has two, one of which is arranged between the left end of the front plate (121) and the rear plate (122), the other is arranged between the right end of the front plate (121) and the rear plate (122), and the top plate (124) is arranged on the top of the above-mentioned front plate (121), rear plate (122) and side plate (123), at least one of the front plate (121), rear plate (122), side plate (123) and top plate (124) is configured as the condenser of the refrigeration assembly.

4. The refrigerant extraction hood according to any one of claims 1 to 3, characterized in that: The refrigeration assembly further comprises a transition water tank (25) and a refrigerant pipeline (26), the transition water tank (25) is arranged below the evaporator (22) to receive the condensed water generated by the evaporator (22), and the refrigerant pipeline (26) sequentially connects the compressor (21), the evaporator (22), the condenser and the compressor (21) to make the refrigerant circulate, the refrigerant pipeline (26) from the compressor (21) passes through the transition water tank (25) and is connected to the evaporator (22).

5. The oil-suction refrigerating range hood according to claim 4, characterized in that: The refrigeration assembly further comprises a water receiving tray (24) arranged below the evaporator (22) to receive the condensed water generated by the evaporator (22), the water receiving tray (24) is provided with a water guide hole (241), and the top of the transition water tank (25) is open and opposite to the water guide hole (241).

6. The refrigerant oil extraction hood as claimed in claim 4 wherein: The refrigeration assembly further comprises a water receiving box (27), the water receiving box (27) is located below the transition water tank (25), and the transition water tank (25) and the water receiving box (27) are in fluid communication through a first water guide pipe (251).

7. The refrigerant extraction hood according to any one of claims 1 to 3, characterized in that: The oil fume suction assembly further comprises a fume collecting cover (11) arranged below the fan frame (12), and the refrigeration assembly further comprises a water receiving tray (24) arranged below the evaporator (22) to receive the condensed water generated by the evaporator (22) and a water receiving box (27) in fluid communication with the water receiving tray (24), the water receiving box (27) being arranged in the fume collecting cover (11) in a pull-out manner.

8. The oil-extraction range hood according to claim 7, characterized in that: The water receiving box (27) is provided with a water level sensor (271) for detecting the water level of the condensed water in the water receiving box (27).

9. The refrigerant extraction hood according to any one of claims 1 to 3, characterized in that: The refrigeration assembly further comprises the water receiving box (27) for storing the condensed water generated by the evaporator (22) and a sterilization assembly for sterilizing and purifying the condensed water in the water receiving box (27).

10. The oil-extraction range hood according to claim 9, characterized in that: The oil fume suction assembly further comprises a fume collecting cover (11) arranged below the fan frame (12), and the fume collecting cover (11) is provided with an air inlet (111), and the fume collecting cover (11) is provided with a flow guide plate (14), the water receiving box (27) is arranged in the fume collecting cover (11) and is isolated from the air inlet (111) by the flow guide plate (14), and the sterilization assembly comprises an ultraviolet sterilization module (281) arranged above the water receiving box (27).

11. The oil-smoke exhaust hood according to claim 10, characterized in that: The sterilization assembly further comprises an exhaust pipe (282), one end of the exhaust pipe (282) is arranged above the water receiving box (27), and the other end of the exhaust pipe (282) is connected to the flow guide plate (14), the flow guide plate (14) is provided with a ventilation hole (141) at the connection position of the exhaust pipe (282) to realize fluid communication between the exhaust pipe (282) and the fan frame (12).

12. The refrigeration hood according to any one of claims 1-3, characterized in that: The refrigeration range hood further comprises an outer cover (3) arranged outside the fan frame (12) and the evaporator (22), and the outer cover (3) is provided with a cold air outlet (31) for blowing the cold air after heat exchange with the evaporator (22). The refrigeration assembly further comprises a water receiving box (27) for storing the condensed water generated by the evaporator (22) and an atomizer (29) for atomizing the condensed water in the water receiving box (27) and blowing the atomized condensed water with the cold air.

13. The refrigerant oil-laden extractor hood according to claim 12, characterized in that: The refrigeration assembly further comprises a heat dissipation fan (23) for blowing the cold air after heat exchange with the evaporator (22), the outlet of the heat dissipation fan (23) and the cold air outlet (31) of the outer cover (3) are connected by an outlet pipe (231) to realize fluid communication, and the outlet of the atomizer (29) is communicated to the outlet pipe (231).

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