Refrigerated range hood

Abstract

A kind of refrigeration range hood, fan frame is equipped with fan system inside, fan system includes first fan and second fan parallel to each other, fan frame is opened with vent, valve plate is installed at vent, heat dissipation cavity is arranged outside fan frame, condenser is arranged in heat dissipation cavity, under the state of valve plate opening, heat dissipation cavity is connected with fan system air inlet by vent, water receiving box is arranged below condenser, air conditioner condensate water can flow to condenser by liquid distributor, the condensate water that is not consumed in condenser flows into water receiving box and can be returned to liquid distributor by water pump.The refrigeration range hood utilizes fan system to dissipate heat for condenser, conducive to realizing greater cooling capacity, and double fan system is also conducive to improving the effect of oil fume extraction, in addition, air conditioner condensate water is distributed to condenser by liquid distributor, dissipates heat for condenser, improves air conditioner efficiency, the condensate water that is not consumed is collected by water receiving box and can be returned to liquid distributor by water pump, realizes the recycling of condensate water.

Description

Technical Field

[0001] This utility model relates to an oil fume purification device, and in particular to a refrigerated range hood. Background Technology

[0002] Existing technologies disclose various types of refrigerated range hoods, which add an air conditioning component to a range hood platform. The compressor, condenser, and evaporator are connected via refrigerant piping. Refrigerated range hoods can perform all the functions of a range hood as well as the functions of an air conditioner. During operation, refrigerated range hoods produce condensate. Although existing solutions can effectively treat this condensate—for example, by directly draining it through a drain pipe, draining it into an oil cup, or atomizing it before discharging it into the range hood fan and then into the common flue—none of these solutions achieve effective utilization of the condensate. Furthermore, the condenser heat dissipation method of existing refrigerated range hoods is often to discharge the condensate into the common flue through the exhaust duct. For example, the "Kitchen Air Conditioning System" disclosed in Chinese Invention Patent No. 201811150307.4 (Authorization Announcement No. CN 110966676 B) has a condenser installed in the air outlet duct downstream of the range hood fan. The air exhausted by the range hood fan is blown towards the condenser to remove the heat from the refrigerant, thus eliminating the need for an additional outdoor unit. However, in this solution, the air exhausted by the range hood fan is blown towards the condenser. Since the air contains many oil fume particles, in order to keep the condenser surface clean, an additional electrostatic device is often needed to filter these fine particles, which increases costs and introduces the risk of errors. Moreover, the electrostatic device cannot completely filter oil stains. For example, the Chinese utility model patent with patent number 202420143790.8 (authorization announcement number CN221881576 U) discloses "A Refrigeration Range Hood". This refrigeration range hood opens a vent on the volute ring wall of the cooling fan, and the cooling fan dissipates heat from the condenser. The hot air is then vented to the range hood fan and discharged outdoors. This requires an additional cooling fan, which increases cost and reduces reliability. Moreover, due to space constraints, the cooling fan is generally small and provides limited air volume. Therefore, the condenser must be enlarged to increase the heat dissipation, which increases the cost of the condenser. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a refrigeration range hood that can realize the recycling of condensate and meet the refrigeration needs of a large cooling capacity range, in view of the above-mentioned existing technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a refrigeration range hood, including a fan frame, and a fan system installed inside the fan frame, characterized in that: the fan system includes a first fan and a second fan connected in parallel, a ventilation opening is opened on the fan frame, a valve plate is installed at the ventilation opening, a heat dissipation cavity is provided on the outside of the fan frame, a condenser is provided in the heat dissipation cavity, when the valve plate is open, the heat dissipation cavity is connected to the air inlet of the fan system through the ventilation opening, a water collection box is provided below the condenser, the air conditioner condensate can flow to the condenser through a distributor, and the condensate that is not consumed by the condenser can flow back to the distributor through a water pump after flowing into the water collection box.

[0005] As a preferred embodiment, the condenser includes a vertically arranged first condenser and a second condenser, and the liquid distributor includes a first liquid distributor and a second liquid distributor. The first liquid distributor is installed on top of the first condenser, and the second liquid distributor is installed on top of the second condenser. It also includes a three-way distributor, so that the condensate discharged from the indoor unit of the air conditioner flows directly into the water collection box, or it is divided into two paths before flowing into the water collection box, one path flowing into the first liquid distributor and the other path flowing into the second liquid distributor. The condensate in the water collection box is pumped to the inlet of the three-way distributor by a water pump. The first outlet of the three-way distributor is connected to the first liquid distributor, and the second outlet of the three-way distributor is connected to the second liquid distributor.

[0006] To ensure that any unused condensate from the condenser flows smoothly into the water collection box, a first water guide pipe is installed at the bottom of the first condenser, and a second water guide pipe is installed at the bottom of the second condenser. The first and second water guide pipes merge and connect to the water collection box.

[0007] As another preferred embodiment, the condenser has a U-shaped structure with its opening facing downwards. A first liquid distributor is installed on the top left side of the condenser, and a second liquid distributor is installed on the top right side of the condenser. It also includes a three-way distributor. The condensate discharged from the indoor unit of the air conditioner flows directly into the water collection box. The condensate in the water collection box is pumped to the inlet of the three-way distributor by a water pump. The first outlet of the three-way distributor is connected to the first liquid distributor, and the second outlet of the three-way distributor is connected to the second liquid distributor.

[0008] To ensure that any unused condensate from the condenser flows smoothly into the water collection box, a first water guide pipe is installed at the bottom left side of the condenser, and a second water guide pipe is installed at the bottom right side of the condenser. The first and second water guide pipes merge and connect to the water collection box.

[0009] As another preferred embodiment, the condenser is arranged at an angle relative to the vertical plane or is set vertically. The air conditioner condensate first flows to the condenser through the distributor. The condensate that is not consumed by the condenser can flow into the water receiving box and be pumped back to the distributor.

[0010] The first and second fans can have various structures. Preferably, both the first and second fans are vertically arranged centrifugal fans, and the central axis of the impeller of the first fan and the central axis of the impeller of the second fan are located on the same straight line and perpendicular to the left and right side walls of the fan frame.

[0011] In order to facilitate the first fan to remove the heat from the heat dissipation cavity, the ventilation opening is located on the side wall of the fan frame opposite to the air inlet of the first fan.

[0012] The first and second fans can have various exhaust structures. As a preferred option, the air outlets of the first and second fans are equipped with three-way exhaust hoods. The three-way exhaust hoods have a first inlet, a second inlet, and an outlet. The first inlet is connected to the air outlet of the first fan, and the second outlet is connected to the air outlet of the second fan.

[0013] As another preferred embodiment, the first fan is equipped with a first exhaust pipe at its outlet, and the second fan is equipped with a second exhaust pipe at its outlet, with the first exhaust pipe and the second exhaust pipe being independent of each other.

[0014] Compared with the prior art, the advantages of this utility model are as follows: The fan system of this refrigeration range hood adopts a dual-fan system. When the valve plate is open, the heat dissipation chamber is connected to the air inlet of the fan system through the ventilation port. The fan system can be used to dissipate heat from the condenser, which is conducive to achieving a larger cooling capacity. The dual-fan system also helps to improve the smoke extraction effect. In addition, the air conditioner condensate is distributed to the condenser through the distributor to dissipate heat from the condenser and improve the air conditioner's energy efficiency. The unused condensate is collected by the water collection box and can be returned to the distributor by the water pump for re-distribution, thereby realizing the recycling of condensate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the range hood according to Embodiment 1 of this utility model;

[0016] Figure 2 This is another structural schematic diagram of the range hood according to Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the range hood according to Embodiment 2 of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the range hood according to Embodiment 3 of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the range hood in Embodiment 4 of this utility model. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] Example 1:

[0022] like Figure 1 As shown, the refrigerated range hood of this embodiment includes a fan frame 1, inside which a fan system is installed. The fan system includes a first fan 2 and a second fan 3 connected in parallel. Both the first fan 2 and the second fan 3 are vertically arranged centrifugal fans, and their performance can be exactly the same or similar. The impeller central axis of the first fan 2 and the impeller central axis of the second fan 3 are located on the same straight line and perpendicular to the left and right side walls of the fan frame 1. A three-way exhaust hood 13 is installed at the air outlet of the first fan 2 and the air outlet of the second fan 3. The three-way exhaust hood 13 has a first inlet, a second inlet, and an outlet. The first inlet is connected to the air outlet of the first fan 2, and the second outlet is connected to the air outlet of the second fan 3. Alternatively, a first exhaust pipe can be installed at the air outlet of the first fan 2, and a second exhaust pipe can be installed at the air outlet of the second fan 3. The first exhaust pipe and the second exhaust pipe are independent of each other.

[0023] A ventilation opening 100 is provided on the fan frame 1, located on the side wall of the fan frame 1 opposite to the air inlet of the first fan 2. A valve plate 4 is installed at the ventilation opening 100. A heat dissipation cavity 5 is provided on the outside of the fan frame 1, and a condenser 6 is installed inside the heat dissipation cavity 5. A compressor 14 and an indoor unit module (not shown in the figure) are also installed on the outside of the fan frame 1. The compressor 14, condenser 6, and indoor unit module constitute an air conditioning assembly. Its working principle can be referred to the existing refrigeration range hood, and will not be described in detail here.

[0024] The valve plate 4 is in different states depending on the operating mode of the range hood, as detailed below:

[0025] When the range hood is turned on alone, the valve plate 4 is closed and the vent 100 is closed. The oil fumes enter the first fan 2 and the second fan 3 and are discharged outward. At this time, the working mode is the same as that of a normal range hood. The condenser 6 is completely separated from the air inlets of the first fan 2 and the second fan 3 by the valve plate 4, so the oil fumes will not pollute the condenser 6.

[0026] When the air conditioner is turned on alone or when the air conditioner and the range hood are turned on at the same time, the valve plate 4 opens and the vent 100 opens. The heat dissipation chamber 5 is connected to the air inlet of the fan system through the vent 100. The heat of the condenser 6 is discharged to the outside through the first fan 2. At this time, the first fan 2 can provide air volume for both heat dissipation of the condenser 6 and air volume for fume extraction.

[0027] When operating in cooling mode, the indoor unit module generates air conditioning condensate. In this embodiment, a water collection box 7 is provided below the condenser 6. The air conditioning condensate can flow onto the condenser 6 through the distributor 8. The condensate that is not consumed by the condenser 6 flows into the water collection box 7 and can then flow back to the distributor 8 through the water pump 9. Specifically, the condenser 6 includes a vertically arranged first condenser 61 and a second condenser 62. The distributor 8 includes a first distributor 81 and a second distributor 82. The first distributor 81 is installed on the top of the first condenser 61, and the second distributor 82 is installed on the top of the second condenser 62. A first water guide pipe 11 is installed at the bottom of the first condenser 61, and a second water guide pipe 12 is installed at the bottom of the second condenser 62. The first water guide pipe 11 and the second water guide pipe 12 merge and connect to the water collection box 7.

[0028] During operation, the condensate discharged from the indoor unit module first flows directly into the water collection box 7. Then, the condensate in the water collection box 7 is pumped by the water pump 9 to the inlet of the three-way distributor 10. Next, it is pumped through the first outlet of the three-way distributor 10 to the first liquid distributor 81, and through the second outlet of the three-way distributor 10 to the second liquid distributor 82. It is then evenly distributed on the first condenser 61 and the second condenser 62. The condensate that is not consumed on the first condenser 61 and the second condenser 62 flows into the water collection box 7 through the first water guide pipe 11 and the second water guide pipe 12 and is pumped back to the three-way distributor 10, realizing the recycling of condensate.

[0029] like Figure 2 As shown, the condensate is divided into two streams before flowing into the water collection box 7. One stream flows into the first distributor 81, and the other flows into the second distributor 82. The condensate flowing out of the first distributor 81 flows to the first condenser 61, and the condensate flowing out of the second distributor 82 flows to the second condenser 62. The unused condensate on the first condenser 61 and the second condenser 62 flows into the water collection box 7 through the first guide pipe 11 and the second guide pipe 12, and is then pumped to the three-way distributor 10. The three-way distributor 10 divides the condensate into two streams, one flowing to the first distributor 81 and the other to the second distributor 82, thus realizing the recycling of condensate.

[0030] Example 2:

[0031] like Figure 3 As shown, the condenser 6 in this embodiment has a U-shaped structure with its opening facing downwards. A first liquid distributor 81 is installed on the top left side of the condenser 6, and a second liquid distributor 82 is installed on the top right side of the condenser 6. A first water guide pipe 11 is installed at the bottom left side of the condenser 6, and a second water guide pipe 12 is installed at the bottom right side of the condenser 6. The first water guide pipe 11 and the second water guide pipe 12 converge and connect to the water receiving box 7. The condensate treatment method in this embodiment is the same as in Embodiment 1, and will not be described again here.

[0032] Example 3:

[0033] like Figure 4 As shown, in this embodiment, the condenser 6 is arranged at an angle relative to the vertical plane. The air conditioning condensate first flows to the condenser 6 through the distributor 8. The condensate that is not consumed by the condenser 6 flows into the water collection box 7 and is then pumped back to the distributor 8 by the water pump 9, so as to realize the recycling of condensate.

[0034] Example 4:

[0035] like Figure 5 As shown, in this embodiment, the condenser 6 is arranged vertically. The air conditioner condensate first flows to the condenser 6 through the distributor 8. The condensate that is not consumed by the condenser 6 flows into the water collection box 7 and is then pumped back to the distributor 8 by the water pump 9, so as to realize the recycling of condensate.

[0036] In addition, the range hood can be controlled by a voice module, which is equipped with a control module, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the range hood to perform corresponding operations, thereby realizing intelligent control of the range hood and improving the user experience.

Claims

1. A refrigerated range hood, comprising a fan frame (1), wherein a fan system is installed inside the fan frame (1), characterized in that: The fan system includes a first fan (2) and a second fan (3) connected in parallel. A vent (100) is opened on the fan frame (1). A valve plate (4) is installed at the vent (100). A heat dissipation cavity (5) is provided outside the fan frame (1). A condenser (6) is provided inside the heat dissipation cavity (5). When the valve plate (4) is open, the heat dissipation cavity (5) is connected to the air inlet of the fan system through the vent (100). A water collection box (7) is provided below the condenser (6). Air conditioning condensate can flow to the condenser (6) through the distributor (8). The condensate that is not consumed by the condenser (6) flows into the water collection box (7) and can be returned to the distributor (8) by the water pump (9).

2. The refrigerated range hood according to claim 1, characterized in that: The condenser (6) includes a first condenser (61) and a second condenser (62) arranged vertically. The liquid distributor (8) includes a first liquid distributor (81) and a second liquid distributor (82). The first liquid distributor (81) is installed on the top of the first condenser (61), and the second liquid distributor (82) is installed on the top of the second condenser (62). It also includes a three-way distributor (10). The condensate discharged from the indoor unit of the air conditioner flows directly into the water collection box (7), or it is divided into two paths before flowing into the water collection box (7). One path flows into the first liquid distributor (81), and the other path flows into the second liquid distributor (82). The condensate in the water collection box (7) is transported to the inlet of the three-way distributor (10) by the water pump (9). The first outlet of the three-way distributor (10) is connected to the first liquid distributor (81), and the second outlet of the three-way distributor (10) is connected to the second liquid distributor (82).

3. The refrigerated range hood according to claim 2, characterized in that: The bottom of the first condenser (61) is equipped with a first water pipe (11), and the bottom of the second condenser (62) is equipped with a second water pipe (12). The first water pipe (11) and the second water pipe (12) merge and are connected to the water receiving box (7).

4. The refrigerated range hood according to claim 1, characterized in that: The condenser (6) has a U-shaped structure with its opening facing downwards. A first liquid distributor (81) is installed on the top left side of the condenser (6), and a second liquid distributor (82) is installed on the top right side of the condenser (6). It also includes a three-way distributor (10). The condensate discharged from the indoor unit of the air conditioner flows directly into the water collection box (7). The condensate in the water collection box (7) is transported to the inlet of the three-way distributor (10) by the water pump (9). The first outlet of the three-way distributor (10) is connected to the first liquid distributor (81), and the second outlet of the three-way distributor (10) is connected to the second liquid distributor (82).

5. The refrigerated range hood according to claim 4, characterized in that: A first water pipe (11) is installed at the bottom left side of the condenser (6), and a second water pipe (12) is installed at the bottom right side of the condenser (6). The first water pipe (11) and the second water pipe (12) are connected to the water receiving box (7) after they merge.

6. The refrigerated range hood according to claim 1, characterized in that: The condenser (6) is arranged at an angle relative to the vertical plane or is set vertically. The air conditioning condensate first flows to the condenser (6) through the distributor (8). The condensate that is not consumed by the condenser (6) can flow into the water receiving box (7) and be pumped back to the distributor (8) by the water pump (9).

7. The refrigerated range hood according to any one of claims 1 to 6, characterized in that: The first fan (2) and the second fan (3) are both vertically arranged centrifugal fans. The impeller centerline of the first fan (2) and the impeller centerline of the second fan (3) are on the same straight line and perpendicular to the left and right side walls of the fan frame (1).

8. The refrigerated range hood according to claim 7, characterized in that: The ventilation opening (100) is located on the side wall of the fan frame (1) opposite to the air inlet of the first fan (2).

9. The refrigerated range hood according to claim 7, characterized in that: The air outlet of the first fan (2) and the air outlet of the second fan (3) are equipped with a three-way air outlet cover (13). The three-way air outlet cover (13) has a first inlet, a second inlet and an outlet. The first inlet is connected to the air outlet of the first fan (2) and the second outlet is connected to the air outlet of the second fan (3).

10. The refrigerated range hood according to claim 7, characterized in that: The first fan (2) has a first exhaust pipe installed at its air outlet, and the second fan (3) has a second exhaust pipe installed at its air outlet. The first exhaust pipe and the second exhaust pipe are independent of each other.

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