Refrigerated range hood

Abstract

A kind of refrigeration range hood, compressor, condenser and evaporator of air conditioning component are connected by refrigerant pipeline, and range hood component includes fan frame and range hood fan, fan frame is equipped with heat dissipation cavity outside, condenser is arranged in heat dissipation cavity, filter screen and heat dissipation fan are also installed in heat dissipation cavity, condenser, filter screen and heat dissipation fan are sequentially distributed along the air flow direction, air conditioning condensate water condensed on the surface of evaporator can sequentially flow through condenser and filter screen, and the condensate water absorbed by filter screen can be taken away by heat dissipation fan.The refrigeration range hood shunts condensate water to filter screen, after filter screen is wetted, heat dissipation fan can take away moisture on filter screen, on the one hand, condensate water can be effectively treated, on the other hand, the temperature of air blown by heat dissipation fan is reduced, if heat dissipation outlet is connected with heat dissipation channel inside fan frame, then the temperature of metal part originally contacted with hot air can be reduced, heat dissipation effect is good, and then the working reliability of range hood is improved.

Description

Technical Field

[0001] This invention relates to range hoods, and more particularly to a refrigerated range hood. Background Technology

[0002] The kitchen is the primary place for cooking, and the quality of its air quality directly impacts the cooking experience. Kitchens are hot in summer and cold in winter, requiring both heating and cooling. To address this, range hoods with integrated air conditioning functions were invented to cool the kitchen air in summer and provide warmth in winter, improving cooking comfort. However, the stuffy heat in summer is a major concern. To address this, cooling-type range hoods were invented, integrating the condenser of the air conditioning unit into the hood. However, the condenser's poor heat dissipation affects the air conditioning's performance. Furthermore, during use, condensate forms on the evaporator surface of the air conditioning unit. Current cooling-type range hoods typically distribute this condensate to the condenser via a distributor. While this helps cool the condenser and improve heat dissipation, unused condensate still drips off the condenser, affecting the reliability of the range hood. Moreover, the condensate is trapped in the fume duct, significantly reducing the air conditioning's water treatment capacity after prolonged operation. For example, the Chinese utility model patent with patent number 202121615051.7 (authorization announcement number CN215863614U) discloses "A Liquid Distributor and an Air-Conditioned Range Hood Using the Liquid Distributor." In this air-conditioning range hood, the condenser and liquid distributor are located in the exhaust duct, while the evaporator is located in the air outlet duct. The condensate condensing on the surface of the evaporator flows into the pipe of the liquid distributor and from the outlet of the liquid distributor to the condenser. If the condensate is discharged externally, it relies on the air conditioning drainage pipe outside the kitchen. In addition, in order to dissipate heat from the condenser, existing technologies have also disclosed solutions that use a range hood fan to remove the heat from the condenser. However, because the condenser temperature is high, the hot air entering the exhaust duct is also high, which is not conducive to effective heat dissipation of the sheet metal parts of the range hood, such as the back of the volute, thus adversely affecting the working stability of the range hood. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a cooling range hood that can effectively handle air conditioner condensate and has good heat dissipation, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: The refrigerated range hood includes an air conditioning component and a fume extraction component. The air conditioning component includes a compressor, a condenser, and an evaporator. The compressor, condenser, and evaporator are connected by a refrigerant pipeline. The fume extraction component includes a fan frame and a fume extraction fan installed in the fan frame. The characteristic feature is that a heat dissipation cavity is provided on the outside of the fan frame. The condenser is located in the heat dissipation cavity. A filter and a heat dissipation fan are also installed in the heat dissipation cavity. The condenser, filter, and heat dissipation fan are distributed sequentially along the air flow direction. The air conditioning condensate condensed on the surface of the evaporator can flow sequentially through the condenser and the filter. The condensate adsorbed by the filter can be carried away by the heat dissipation fan.

[0005] In order to remove the heat in the heat dissipation cavity by the range hood, the heat dissipation cavity has a heat dissipation air inlet and a heat dissipation air outlet. The heat dissipation air inlet is connected to the outside of the range hood, and the heat dissipation air outlet is connected to the internal space of the fan frame.

[0006] To effectively avoid interference between the oil fume airflow and the heat dissipation airflow, preferably, the oil fume fan is a centrifugal fan with dual air inlets, one air inlet corresponding to the main air intake channel and the other air inlet corresponding to the heat dissipation channel. Ventilation holes are opened on the fan frame, and the heat dissipation outlet is connected to the heat dissipation channel through the ventilation holes.

[0007] In a further preferred embodiment, the main air intake channel is located on the front side of the range hood, and the heat dissipation channel is located on the rear side of the range hood. This allows the cooling airflow to cool the back of the range hood's casing, improving the range hood's operational reliability.

[0008] In order to smoothly transport the unused condensate from the condenser to the filter screen, the condenser is located above the filter screen, and a water receiving tray is provided between the condenser and the filter screen. The water receiving tray is used to collect the condensate flowing down from the surface of the condenser, and the condensate in the water receiving tray can be transported to the filter screen.

[0009] To ensure the filter can fully absorb condensate, the filter includes a cylindrical filter body and an upper drip tray at the top of the cylindrical filter body. The upper drip tray has a circumferential overflow dam, which is lower than the outer circumferential wall of the upper drip tray. A water receiving area is formed between the overflow dam and the outer circumferential wall of the upper drip tray, and the condensate in the water receiving tray is transported to the water receiving area. A water outlet area is formed between the overflow dam and the inner circumferential wall of the upper drip tray. Drip holes are distributed circumferentially at intervals at the bottom of the water outlet area, and the drip holes are located above the cylindrical filter body.

[0010] Further preferably, the cylindrical filter body is cylindrical, and correspondingly, the upper drip tray is annular.

[0011] In order to enable the filter screen to absorb condensate evenly, the drip holes are located directly above the cylindrical filter screen body and are evenly distributed along the circumferential interval of the upper drip plate.

[0012] To prevent unabsorbed condensate from dripping down the filter screen, a lower drip tray is provided at the bottom of the cylindrical filter screen body. Condensate not completely absorbed by the cylindrical filter screen body flows into the lower drip tray. Additionally, the condensate in the lower drip tray can flow back to the upper drip tray, thus achieving condensate recycling.

[0013] In order for the cooling fan to quickly remove the moisture from the filter screen, the cooling fan is a centrifugal fan with an upward-facing air inlet. The filter screen is located directly above the upper air inlet, and the central axis of the filter screen is on the same vertical line as the central axis of the impeller of the cooling fan.

[0014] Preferably, the inner diameter of the cylindrical filter body is not less than the diameter of the upper air inlet. This ensures that the condensate adsorbed by the cylindrical filter body can be easily carried away by the cooling fan.

[0015] As another preferred option, the cooling fan can also adopt a dual air inlet structure, that is, the cooling fan also has a lower air inlet with the air inlet facing downwards.

[0016] In a further preferred embodiment, an indoor air conditioning unit is installed on the outside of the fan frame. The indoor air conditioning unit includes an indoor fan and the evaporator. The indoor air conditioning unit has a condensate outlet, and the air conditioning condensate flows out from the condensate outlet and flows through the condensate pipe to the surface of the condenser.

[0017] The indoor unit of the air conditioner can be installed in multiple different locations. Preferably, the indoor unit is located on the top of the fan frame, and the condensate outlet is located above the condenser.

[0018] The compressor can be installed in multiple different locations; preferably, the compressor is installed outside the fan frame.

[0019] In order for the cooling fan to dissipate heat from the compressor, the compressor is installed inside the cooling cavity.

[0020] Compared with the prior art, the advantages of the present invention are as follows: the condenser, filter screen and cooling fan in the heat dissipation chamber of the cooling range hood are distributed sequentially along the air flow direction. The air conditioning condensate condensed on the surface of the evaporator can flow sequentially through the condenser and filter screen, diverting the condensate onto the filter screen. After the filter screen is wetted, the cooling fan can remove the water from the filter screen. On the one hand, the condensate is effectively treated, and on the other hand, the temperature of the air blown out by the cooling fan is reduced. If the heat dissipation outlet of the cooling fan is connected to the heat dissipation channel inside the fan frame, the temperature of the sheet metal parts of the range hood that are originally in contact with the hot air can be reduced, resulting in good heat dissipation and thus improving the reliability of the range hood. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the range hood.

[0023] Figure 3 for Figure 1 The top view of the range hood shown;

[0024] Figure 4 for Figure 1 The diagram shows the structure of the range hood from another angle;

[0025] Figure 5 This is a schematic diagram of the filter screen according to an embodiment of the present invention;

[0026] Figure 6 for Figure 5 The diagram shows a cross-sectional view of the filter screen. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1 to 4 As shown, the refrigerated range hood of this embodiment includes an air conditioning component and a fume extraction component. The air conditioning component includes a compressor 11, a condenser 12 and an evaporator 13. The compressor 11, the condenser 12 and the evaporator 13 are connected by a refrigerant pipe 14. The working principle of the air conditioning component 1 is the same as that of the existing air conditioner, and will not be described in detail here.

[0029] The fume extraction assembly includes a fan frame 21 and a fume extraction fan 22 disposed within the fan frame 21. The fan frame 21 has a heat dissipation cavity 3 on its exterior to... Figure 2 The direction indicated by the middle arrow A is to the right. In this embodiment, the heat dissipation cavity 3 is located on the right side of the fan frame 21. Alternatively, the heat dissipation cavity 3 can also be arranged on the left side of the fan frame 21.

[0030] The heat dissipation cavity 3 is equipped with a heat dissipation fan 5, a filter 4, a condenser 12, and a compressor 11, wherein the condenser 12, the filter 4, and the heat dissipation fan 5 are distributed sequentially along the airflow direction. The heat dissipation cavity 3 has a heat dissipation air inlet and a heat dissipation air outlet. The heat dissipation air inlet is connected to the outside of the range hood, and the heat dissipation air outlet is connected to the internal space of the fan frame 21 through a ventilation hole (not shown in the figure) on the fan frame 21. In this embodiment, the range hood fan 22 is a centrifugal fan with dual air inlets. The front air inlet corresponds to the main air intake channel, through which the fumes enter. The rear air inlet corresponds to the heat dissipation channel, and the heat dissipation cavity 3 is connected to the heat dissipation channel. Under the combined action of the heat dissipation fan 5 and the range hood fan 22, the heat from the condenser 12 and the compressor 11 is carried away by the range hood fan 22.

[0031] In this embodiment, the indoor unit 7 is installed on top of the fan frame 21. The indoor unit 7 includes an indoor fan 71 and an evaporator 13. The indoor unit 7 has a condensate outlet located above the condenser 12. The condensate flows out from the condensate outlet and onto the surface of the condenser 12. A filter screen 4 is located below the condenser 12, and a drip tray 6 is provided between the condenser 12 and the filter screen 4. Unused condensate from the condenser 12 first flows into the drip tray 6, and then flows through the drain pipe 8 at the bottom of the drip tray 6 onto the filter screen 4.

[0032] like Figure 5 and Figure 6 As shown, the filter screen 4 in this embodiment includes a cylindrical filter screen body 41, an upper drip plate 42 disposed at the top of the cylindrical filter screen body 41, and a lower drip plate 47 disposed at the bottom of the cylindrical filter screen body 41. Specifically, the cylindrical filter screen body 41 is cylindrical, and both the upper drip plate 42 and the lower drip plate 47 are annular. A circumferential overflow dam 43 is provided inside the upper drip plate 42. The circumferential overflow dam 43 is lower than the outer circumferential wall of the upper drip plate 42, and a water receiving area 44 is formed between the overflow dam 43 and the outer circumferential wall of the upper drip plate 42. The condensate in the water receiving plate 6 is transported to the water receiving area 44, and a water outlet area 45 is formed between the overflow dam 43 and the inner circumferential wall of the upper drip plate 42. Drip holes 46 are distributed circumferentially at intervals at the bottom of the water outlet area 45. The drip holes 46 are located above the cylindrical filter screen body 41. In this embodiment, there are 8 drip holes, which are evenly distributed at intervals to make the water outlet more uniform.

[0033] In this embodiment, the cooling fan 5 is a centrifugal fan. The cooling fan 5 has an upper air inlet 51 with the air inlet facing upward. The filter screen 4 is located directly above the upper air inlet 51. The central axis of the filter screen 4 is on the same vertical line as the central axis of the impeller of the cooling fan, and the inner diameter of the cylindrical filter screen body 41 is not less than the diameter of the upper air inlet 51.

[0034] When the range hood operates in cooling mode, the condensate produced by the air conditioner first drips onto the end of the condenser 12, where it exchanges heat and evaporates. Part of the condensate evaporates after heat exchange, while the remaining condensate, with its temperature rising, drips into the water collection area 44 of the drip tray 42 on the filter 4. Once the water collection area 44 is full, the condensate overflows from the overflow dam 43 and flows into the outlet area 45, then evenly distributes through the eight drip holes 46 onto the cylindrical filter body 41, thoroughly wetting the filter 4. Simultaneously, kitchen air is drawn in by the cooling fan 5, passing through the condenser 12 and filter 4, carrying away moisture from the filter 4 before entering the heat dissipation channel at the back of the range hood 22, significantly reducing the temperature of the volute back of the range hood 22. The condensate not completely absorbed by the cylindrical filter body 41 flows into the lower drip tray 47, where it can be recycled back to the upper drip tray 42.

Claims

1. A refrigerated range hood, comprising an air conditioning assembly and a fume extraction assembly, wherein the air conditioning assembly comprises a compressor (11), a condenser (12), and an evaporator (13), the compressor (11), the condenser (12), and the evaporator (13) being connected by a refrigerant pipeline (14), and the fume extraction assembly comprising a fan frame (21) and a fume extraction fan (22) disposed within the fan frame (21), characterized in that: The fan frame (21) has a heat dissipation cavity (3) on its exterior. The condenser (12) is located inside the heat dissipation cavity (3). A filter screen (4) and a cooling fan (5) are also installed inside the heat dissipation cavity (3). The condenser (12), filter screen (4), and cooling fan (5) are arranged sequentially along the airflow direction. The air conditioning condensate condensed on the surface of the evaporator (13) can flow sequentially through the condenser (12) and the filter screen (4). The condensate adsorbed by the filter screen (4) can be carried away by the cooling fan (5). The condenser (12) is located above the filter screen (4). A water receiving tray (6) is provided between the condenser (12) and the filter screen (4). The water receiving tray (6) is used to collect the condensate flowing down from the surface of the condenser (12). The condensate in the water receiving tray (6) Water can be delivered to the filter screen (4). The filter screen (4) includes a cylindrical filter screen body (41) and an upper drip plate (42) located on the top of the cylindrical filter screen body (41). The upper drip plate (42) is provided with a circumferential overflow dam (43). The circumferential overflow dam (43) is lower than the outer circumferential wall of the upper drip plate (42). A water receiving area (44) is formed between the overflow dam (43) and the outer circumferential wall of the upper drip plate (42). The condensate in the water receiving plate (6) is delivered to the water receiving area (44). A water outlet area (45) is formed between the overflow dam (43) and the inner circumferential wall of the upper drip plate (42). Drip holes (46) are distributed circumferentially at intervals at the bottom of the water outlet area (45). The drip holes (46) are located above the cylindrical filter screen body (41).

2. The refrigerated range hood according to claim 1, characterized in that: The heat dissipation cavity (3) has a heat dissipation air inlet and a heat dissipation air outlet. The heat dissipation air inlet is connected to the outside of the range hood, and the heat dissipation air outlet is connected to the internal space of the fan frame (21).

3. The refrigerated range hood according to claim 2, characterized in that: The fume extractor (22) is a centrifugal fan with dual air inlets. One air inlet corresponds to the main air intake channel, and the other air inlet corresponds to the heat dissipation channel. Ventilation holes are opened on the fan frame (21), and the heat dissipation outlet is connected to the heat dissipation channel through the ventilation holes.

4. The refrigerated range hood according to claim 3, characterized in that: The main air intake channel is located on the front side of the fume extractor (22), and the heat dissipation channel is located on the rear side of the fume extractor (22).

5. The refrigerated range hood according to claim 1, characterized in that: The cylindrical filter body (41) is cylindrical, and correspondingly, the upper drip plate (42) is annular.

6. The refrigerated range hood according to claim 1, characterized in that: The drip holes (46) are located directly above the cylindrical filter body (41) and are evenly distributed along the circumferential intervals of the upper drip plate (42).

7. The refrigerated range hood according to claim 1, characterized in that: A lower drip tray (47) is provided at the bottom of the cylindrical filter body (41), and the condensate that is not completely absorbed by the cylindrical filter body (41) flows into the lower drip tray (47).

8. The refrigerated range hood according to claim 1, characterized in that: The cooling fan (5) is a centrifugal fan. The cooling fan (5) has an upper air inlet (51) with the air inlet facing upward. The filter (4) is located directly above the upper air inlet (51), and the central axis of the filter (4) is on the same vertical line as the central axis of the impeller of the cooling fan (5).

9. The refrigerated range hood according to claim 8, characterized in that: The inner diameter of the cylindrical filter body (41) is not less than the diameter of the upper air inlet (51).

10. The refrigerated range hood according to claim 8, characterized in that: The cooling fan (5) also has a downward-facing air inlet.

11. The refrigerated range hood according to claim 1, characterized in that: An air conditioning indoor unit (7) is installed on the outside of the fan frame (21). The air conditioning indoor unit (7) includes an indoor unit fan (71) and the evaporator (13). The air conditioning indoor unit (7) has a condensate outlet, from which air conditioning condensate flows out and onto the surface of the condenser (12).

12. The refrigerated range hood according to claim 11, characterized in that: The indoor unit (7) of the air conditioner is located on the top of the fan frame (21), and the condensate outlet is located above the condenser (12).

13. The refrigerated range hood according to any one of claims 1 to 12, characterized in that: The compressor (11) is installed outside the fan frame (21).

14. The refrigerated range hood according to claim 1, characterized in that: The compressor (11) is installed inside the heat dissipation cavity (3).

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