Air-conditioning type range hood

Abstract

An air-conditioning type range hood is characterized in that an oil smoke suction module, a compressor, a heat dissipation module and an indoor unit module are installed in a machine shell, an air inlet channel is formed between an air inlet of an oil smoke suction fan and a corresponding side plate of a fan frame, and the air inlet of the oil smoke suction fan is divided into a first air inlet and a second air inlet by a partition plate in the air inlet channel; the air outlet of the cooling fan is communicated with the first air inlet, and the second air inlet is an oil smoke suction inlet. According to the air conditioner type extractor hood, after the partition plate is installed in the air inlet channel, heat dissipation airflow enters the oil smoke suction fan through the first air inlet, oil smoke airflow enters the oil smoke suction fan through the second air inlet, the probability that the heat dissipation airflow and the oil smoke airflow interfere with each other is reduced, balance between the air volume of the heat dissipation fan and the air volume of the extractor hood is facilitated, and fan noise is reduced; the heat dissipation effect of the heat dissipation fan on the condenser is guaranteed, the performance of the oil smoke suction fan can be guaranteed, and the oil smoke suction effect is guaranteed. In addition, lampblack is prevented from entering the cooling fan, the probability that the condenser is polluted by the lampblack is greatly reduced, and the energy efficiency of the air conditioner is improved.

Description

Technical Field

[0001] This utility model relates to a range hood, and more particularly to an air-conditioning type range hood. Background Technology

[0002] Various refrigeration-type range hoods are disclosed in the prior art. These hoods add an air conditioning component to the existing range hood platform. The compressor, condenser, and evaporator are connected via refrigerant piping. The refrigeration-type range hood can perform all the functions of a range hood as well as the functions of an air conditioner. For example, the Chinese utility model patent with patent number 202122814657.X (authorization announcement number CN 216557289U) discloses an "Air Conditioning-Type Range Hood." This range hood has a damper installed at the outlet of the exhaust fan to switch between one of the first and second exhaust channels. The condenser is located in the first exhaust channel. This range hood adopts a dual-channel structure. The first exhaust channel forms a heat dissipation channel, and the second exhaust channel forms a direct exhaust channel. In different operating modes, by switching the damper, the fumes can be discharged from either the heat dissipation channel or the direct exhaust channel. The dual-channel structure is complex, with many components, and requires an oil fume purification device to be installed within the heat dissipation channel to prevent the condenser from being contaminated by oil fumes. Furthermore, the oil fumes need to make two 90° bends after entering the heat dissipation channel before being discharged, resulting in significant air resistance and affecting the smoke extraction efficiency.

[0003] For example, the Chinese utility model patent with patent number 202320059220.6 (authorization announcement number CN 219222570 U) discloses "A Refrigeration Range Hood". The refrigeration range hood's fume extraction module includes a fan frame and a fume extraction fan. An air conditioner outdoor unit module and an air conditioner indoor unit module are located outside the fan frame. The air conditioner outdoor unit module includes a heat dissipation cavity, a condenser, and a heat dissipation fan. The heat dissipation cavity is located outside the fan frame. The condenser is installed inside the heat dissipation cavity. The heat dissipation fan is located outside the heat dissipation cavity and installed on the top of the heat dissipation cavity. The air outlet of the heat dissipation fan faces the inside of the heat dissipation cavity. The heat dissipation cavity has a heat dissipation outlet that is connected to the air inlet of the fume extraction fan. Although the condenser heat of this cooling-type range hood enters the exhaust fan through the heat dissipation vent and is then carried away by the fan, and the condenser is located outside the exhaust duct, eliminating the need for a purification device and reducing cost and maintenance, the exhaust vent of the heat dissipation fan is fluidly connected to the fan inlet via a heat dissipation vent on the fan frame. The air blown out of the heat dissipation fan outlet interferes with the airflow of cooking fumes at the fan inlet, thus affecting the fume extraction effect. Furthermore, given a fixed fan airflow, this cooling-type range hood cannot effectively distribute the cooling airflow and the fume extraction airflow. In conclusion, further improvements are needed for existing air-conditioning-type range hoods. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an air-conditioning type range hood that can effectively isolate the heat dissipation airflow and the oil fume airflow and facilitate the balance between the air volume of the heat dissipation fan and the air volume of the range hood, in light of the above-mentioned existing technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an air-conditioning type range hood, including a casing, an oil fume extraction module, a compressor, a heat dissipation module and an indoor unit module are installed inside the casing. The oil fume extraction module includes a fan frame and an oil fume extraction fan installed inside the fan frame. An air intake channel is formed between the air inlet of the oil fume extraction fan and the corresponding side plate of the fan frame. The heat dissipation module includes a condenser and a heat dissipation fan. The indoor unit module has an evaporator and an indoor unit fan. The feature is that: a partition is provided in the air intake channel, and the partition divides the air inlet of the oil fume extraction fan into a first air inlet and a second air inlet. The air outlet of the heat dissipation fan is connected to the first air inlet, and the second air inlet is an oil fume intake inlet.

[0006] Preferably, ventilation holes are provided on the partition, and the air outlet of the cooling fan is connected to the second air inlet through the ventilation holes. With ventilation holes on the partition, when only the range hood is turned on, the second air inlet and the first air inlet are connected through the ventilation holes. This increases the area of ​​the range hood's intake, which helps improve fan performance, enhances fume extraction, and reduces noise. When both the range hood and the cooling fan are on, the fume and cooling airflows are almost unable to cross each other through the ventilation holes, thus avoiding interference between the fume and cooling airflows.

[0007] As another preferred embodiment, the width of the partition is smaller than the width of the air inlet channel. With this configuration, when only the range hood is turned on, the second air inlet and the first air inlet can be connected through the gap next to the partition. This increases the area of ​​the range hood's intake, which helps improve fan performance, enhances fume extraction, and reduces noise. When both the range hood and the cooling fan are on, the partition effectively isolates the cooling airflow from the fume airflow.

[0008] To meet the airflow and noise requirements of the cooling fan and the range hood, the area S1 of the first air inlet and the area S2 of the second air inlet satisfy 0.3 ≤ S1 / S2 ≤ 3. When S1 is less than S2, turning on the air conditioner and the range hood will affect the airflow of the cooling fan, thus affecting the performance of the air conditioner; when S1 is greater than S2, turning on the air conditioner and the range hood will affect the airflow of the range hood, thus affecting the smoke extraction effect and noise.

[0009] In order for the partition to effectively block the air blown out of the cooling fan outlet, the air outlet of the cooling fan is oriented towards the partition.

[0010] In a further preferred embodiment, the projection of the air outlet of the cooling fan along the airflow direction falls entirely within the partition. With this configuration, the air blown out by the cooling fan is blocked by the partition, preventing it from flowing directly to the oil fume intake on the other side of the partition.

[0011] The fume extractor can have various structures. Preferably, the fume extractor is a centrifugal fan, and the plane where the air inlet of the fume extractor is located is a vertical plane.

[0012] Further preferably, the impeller's central axis of the range hood is perpendicular to the front plate of the casing, and the partition is arranged horizontally, diagonally, or vertically. Thus, once the installation structure of the range hood is determined, the partition can also have various different installation methods.

[0013] Further preferably, the cooling fan is positioned above the fume extractor, and the partition is arranged horizontally above the central axis of the impeller. This arrangement ensures that the area of ​​the second air inlet is larger than that of the first air inlet, guaranteeing sufficient fume extraction efficiency.

[0014] The partition can have various structures. Preferably, the partition is a horizontal partition or is arranged diagonally downward from the middle to the left and right sides or diagonally upward from the middle to the left and right sides.

[0015] The cooling fan can also be installed in other different locations. Preferably, the cooling fan is located on the left or right side of the fume extractor, and correspondingly, the baffle is located on the left or right side of the impeller's central axis.

[0016] Further optimization involves rotating the range hood left and right, causing the air outlet of the range hood to tilt upwards. An exhaust hood is installed at the exhaust outlet of the range hood. After the fan rotates, the installation position of the exhaust hood is lowered, and the length of the exhaust hood can be extended, thus making the transition between the exhaust hood and the fan outlet smoother, which helps to reduce wind resistance and noise. The maximum rotation angle of the range hood can be set to 60°.

[0017] Further preferably, the range hood is a centrifugal fan with front and rear dual-sided air intake, and the air intake channel includes a main air intake channel and an auxiliary air intake channel, with the partition located within the auxiliary air intake channel. This configuration, employing a dual-intake structure, ensures sufficient airflow from the range hood and reduces the impact of the cooling fan's airflow on the fume extraction effect.

[0018] More preferably, the main air intake channel is located on the front side of the fume extractor, and the auxiliary air intake channel is located on the rear side of the fume extractor; or the main air intake channel is located on the rear side of the fume extractor, and the auxiliary air intake channel is located on the front side of the fume extractor.

[0019] As a preferred embodiment of any of the above schemes, the compressor, condenser, and evaporator are connected by a refrigerant pipeline, and a throttling device is installed on the refrigerant pipeline between the condenser and the evaporator.

[0020] Compared with existing technologies, the advantages of this utility model are as follows: This air-conditioning type range hood has a partition installed in the air intake channel between the air intake of the range hood fan and the corresponding side plate of the fan frame. The partition divides the air intake of the range hood fan into a first air intake and a second air intake. The cooling airflow blown out by the cooling fan can enter the range hood fan through the first air intake, while the oil fume airflow can enter the range hood fan through the second air intake. The partition reduces the likelihood of interference between the cooling airflow and the oil fume airflow, facilitating a balance between the airflow of the cooling fan and the range hood fan, reducing fan noise, and ensuring both the cooling effect of the cooling fan on the condenser and the performance of the range hood fan, thus ensuring effective oil fume extraction. Furthermore, the partition prevents oil fumes from entering the cooling fan fan, significantly reducing the probability of the condenser being contaminated by oil fumes, thereby improving the air conditioner's energy efficiency. Attached Figure Description

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

[0022] Figure 2 for Figure 1 The diagram shows the internal structure of the range hood.

[0023] Figure 3 for Figure 1 The diagram shows another internal structure of the range hood.

[0024] Figure 4 for Figure 3 The diagram shows the structure of the range hood from another angle;

[0025] Figure 5 This is a schematic diagram of the connection of the air conditioning components according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of a range hood with another partition structure according to an embodiment of the present utility model;

[0027] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the range hood. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1 to 7As shown, the air-conditioning type range hood of this embodiment includes a casing 1. Inside the casing 1 are installed a fume extraction module 2, a compressor 3, a heat dissipation module 4, and an indoor unit module 5. The fume extraction module 2 includes a fan frame 21 and a fume extraction fan 22 installed inside the fan frame 21. An air intake channel 23 is formed between the air inlet of the fume extraction fan 22 and the corresponding side plate of the fan frame 21. The heat dissipation module 4 has a condenser 41 and a heat dissipation fan 42. The indoor unit module 5 has an evaporator 51 and an indoor unit fan 52. Both the heat dissipation module 4 and the indoor unit module 5 are located outside the fume extraction fan 22. The compressor 3, condenser 41, and evaporator 51 are connected via a refrigerant pipe 101. A throttling device 102 is installed on the refrigerant pipe 101 between the condenser 41 and the evaporator 51. Its refrigeration principle can be referred to in existing air conditioners and will not be described in detail here.

[0030] The compressor 3 can be installed on the left or right side of the range hood 22, so as to... Figure 2 The direction indicated by the middle arrow A is left. In this embodiment, the compressor is installed on the left side of the range hood 22. The heat dissipation module 4 is located directly above the range hood 22, and the indoor unit module 5 is located on the upper left side of the range hood 22. Alternatively, the heat dissipation module 4 can also be installed on the left or right side of the range hood 22; that is, the heat dissipation module 4 and the compressor 3 can be respectively located on the left and right sides of the range hood 22.

[0031] In this embodiment, the fume extractor 22 is a centrifugal fan with front and rear dual-sided air intake. The air intake channel 23 includes a main air intake channel 231 and an auxiliary air intake channel 232. The impeller central axis of the fume extractor 22 is perpendicular to the front plate of the casing 1. The main air intake channel 231 is located on the rear side of the fume extractor 22, and the auxiliary air intake channel 232 is located on the front side of the fume extractor 22. Alternatively, the main air intake channel 231 can be located on the front side of the fume extractor 22, while the auxiliary air intake channel 232 can be located on the rear side of the fume extractor 22. If a single-intake structure fume extractor is used, there is only one air intake channel 23, and the air outlet of the cooling fan 42 is connected to this air intake channel 23.

[0032] In this embodiment, the range hood 22 rotates left and right, causing the air outlet of the range hood 22 to tilt upwards and to the right. An air outlet hood 24 is installed at the air outlet of the range hood 22, with the air outlet of the hood 24 pointing vertically upwards. Figure 3As can be seen, the air outlet of the exhaust hood 24 is located at the upper right of the range hood 22, which frees up space directly above the range hood 22 to install the heat dissipation module 4, and frees up space at the upper left of the range hood 22 to install the indoor unit module 5. That is, the heat dissipation module 4 is located between the indoor unit module 5 and the exhaust hood 24. The maximum rotation angle of the range hood 22 is 60°, and in this embodiment, the rotation angle is about 40°. After the range hood 22 rotates a certain angle, the installation position of the exhaust hood 24 is lowered, and the length of the exhaust hood 24 can be lengthened, thereby making the transition between the exhaust hood 24 and the air outlet of the fan smoother, which helps to reduce wind resistance and noise.

[0033] For centrifugal fans that are not rotated, some of the oily fumes drawn in from the inlet will rise to the top of the fan and then fall back into the volute through the volute tongue. Because the static pressure at the volute tongue is high, this airflow interferes with the airflow diverted at the volute tongue within the volute, resulting in turbulent airflow and higher noise levels in the volute tongue area. However, when the exhaust fan rotates to a certain angle, the lower position of the volute tongue means that the upward-flowing fumes return to the volute tongue at a point further away from the volute tongue, resulting in a lower wind speed, smoother airflow, and reduced noise.

[0034] A baffle 6 is installed inside the auxiliary air intake duct 232. The baffle 6 is arranged horizontally and located above the central axis of the impeller. Figure 3 As shown, the partition 6 adopts an inverted V-shape, meaning that the partition 6 is arranged diagonally downwards from the middle to the left and right sides. The cooling fan 42 is located directly above the range hood 22, with the air outlet of the cooling fan 42 facing the partition 6. The projection of the air outlet of the cooling fan 42 along the air outlet direction falls entirely within the partition 6. Therefore, the partition 6 can effectively block the downward airflow from the cooling fan 42. Besides being arranged horizontally, the partition 6 can also be arranged diagonally. If the cooling fan 42 is located to the left or right of the range hood 22, the partition 6 can also be arranged vertically, positioned closer to the cooling fan 42.

[0035] The partition 6 divides the air inlet of the range hood 22 into a first air inlet 221 and a second air inlet 222. The air outlet of the cooling fan 42 is connected to the first air inlet 221, and the second air inlet 222 is the fume intake inlet. In cooling mode, the hot air blown out by the cooling fan 42 enters the range hood 22 through the first air inlet 221, and the fumes enter the range hood 22 through the second air inlet 222. The area S1 of the first air inlet 221 and the area S2 of the second air inlet 222 satisfy 0.3≤S1 / S2≤3. When S1 is less than S2, turning on the air conditioner and the range hood will affect the airflow of the cooling fan 42, thus affecting the performance of the air conditioner; when S1 is greater than S2, turning on the air conditioner and the range hood will affect the airflow of the range hood 22, thus affecting the fume extraction effect and noise. Setting the ratio of S1 / S2 within a reasonable range can meet the air volume and noise requirements of the cooling fan 42 and the fume extraction fan 22, achieving the best balance.

[0036] In this embodiment, the partition 6 has ventilation holes 61, and the air outlet of the cooling fan 42 is connected to the second air inlet 222 through the ventilation holes 61. After the ventilation holes 61 are provided on the partition 6, when only the range hood 22 is turned on, the second air inlet 222 and the first air inlet 221 are connected through the ventilation holes 61. This increases the area of ​​the range hood's intake, which is beneficial to improving the fan performance, enhancing the fume extraction effect, and reducing noise. When both the range hood 22 and the cooling fan 42 are turned on, the fume airflow and the cooling airflow can hardly cross each other through the ventilation holes, thereby avoiding mutual interference between the fume airflow and the cooling airflow.

[0037] In this embodiment, an air conditioning vent is located on the upper front of the casing 1. The air conditioning vent is horizontal in shape. The air outlet of the indoor unit fan 52 is fluidly connected to the air conditioning vent through the air guide assembly 7. In cooling mode, the cold air blown by the indoor unit fan 52 is blown out through the air conditioning vent. In addition, an air outlet panel 8 is installed at the air conditioning vent, and an air guide structure 9 for adjusting the air outlet angle is installed on the air outlet panel 8. The air guide structure 9 can adjust the air outlet angle, so that the air conditioning air blows towards the cook or avoids blowing on people. Users can adjust it manually or automatically as needed.

[0038] Alternatively, an air outlet duct (not shown in the diagram) can be connected to the air outlet of the indoor unit's fan. This duct is fluidly connected to the indoor airflow in the kitchen. The air conditioner's outlet can be installed in the kitchen ceiling or other locations within the kitchen. The air conditioning air passes through the duct and is then blown out from the outlet. The location of the air conditioner's outlet is quite flexible, allowing users to choose according to their needs.

[0039] The range hood in this embodiment includes an upper housing 11 and an air inlet 12. The front-to-back depth of the upper housing 11 is greater than the front-to-back depth of the air inlet 12. A fan frame 21 and a range hood fan 22 are located inside the upper housing 11. An inlet smoke channel 121 is formed inside the air inlet 12, which is fluidly connected to an air inlet channel 23. Oil fumes enter the air inlet channel 23 of the upper housing 11 through the inlet smoke channel 121 of the air inlet 12, and are finally discharged outwards by the range hood fan 22. Furthermore, the main air inlet channel 231 is located directly above the inlet smoke channel 121, and both have similar front-to-back widths, forming a direct exhaust channel for oil fumes, resulting in better fume extraction and reduced noise. In addition, to further reduce the noise of the range hood during operation, noise reduction devices (not shown in the figure) can be installed in the inlet smoke channel 121 and the air inlet channel 23. These noise reduction devices can be sound-absorbing cotton or other different noise reduction structures.

[0040] In this embodiment, the power board 10 is located at the lower right corner of the range hood 22. Since the compressor is located at the lower left corner of the range hood 22, the heat dissipation module 4 is located directly above the range hood 22, and the indoor unit module 5 is located at the upper left of the range hood 22, the range hood 22 isolates the power board 10 from the compressor 3 and heat exchange module that generate heat, thus preventing the heat generated by the compressor 3 and heat dissipation module 4 from having an adverse effect on the power board 10.

[0041] Furthermore, the partition 6 can be without openings, but its width must be less than the width of the air inlet channel 23. This ensures that when only the range hood 22 is turned on, the oily fumes can pass through the gap next to the partition 6 into the first air inlet 221, thus ensuring sufficient airflow and effective fume extraction. When the range hood and air conditioner are turned on simultaneously, although there is a gap next to the partition 6, most of the cooling airflow still enters the range hood 22 through the first air inlet 221, and most of the oily fumes still enter the range hood 22 through the second air inlet 222.

[0042] like Figure 6 As shown, the partition 6 adopts a V-shape, that is, the partition 6 is arranged obliquely upward from the middle to the left and right sides. Its specific working principle is the same as that of the inverted V-shaped partition, and will not be described in detail here.

[0043] In addition, the partition 6 can also be flat. Regardless of the different structures of the partition 6, its basic function is to block and separate the heat dissipation airflow and the oil fume airflow in order to achieve a balance between the air volume of the heat dissipation fan and the air volume of the range hood.

[0044] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0045] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts, collectively referred to as the first part and the second part, meaning that a fluid, gas, liquid, or a mixture of both can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, flow guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. An air-conditioning type range hood, comprising a housing (1), wherein a fume extraction module (2), a compressor (3), a heat dissipation module (4), and an indoor unit module (5) are installed inside the housing (1), the fume extraction module (2) comprising a fan frame (21) and a fume extraction fan (22) installed inside the fan frame (21), wherein an air inlet of the fume extraction fan (22) and a corresponding side plate of the fan frame (21) form an air inlet channel (23), the heat dissipation module (4) comprising a condenser (41) and a heat dissipation fan (42), and the indoor unit module (5) comprising an evaporator (51) and an indoor unit fan (52), characterized in that: The air inlet channel (23) is provided with a partition (6), which divides the air inlet of the fume extractor (22) into a first air inlet (221) and a second air inlet (222). The air outlet of the heat dissipation fan (42) is connected to the first air inlet (221), and the second air inlet (222) is the fume inlet.

2. The air-conditioning type range hood according to claim 1, characterized in that: A ventilation hole (61) is provided on the partition (6), and the air outlet of the cooling fan (42) is connected to the second air inlet (222) through the ventilation hole (61).

3. The air-conditioning type range hood according to claim 1, characterized in that: The width of the partition (6) is smaller than the width of the air inlet channel.

4. The air-conditioning type range hood according to claim 1, characterized in that: The area S1 of the first air inlet (221) and the area S2 of the second air inlet (222) satisfy 0.3≤S1 / S2≤3.

5. The air-conditioning type range hood according to claim 1, characterized in that: The air outlet of the cooling fan (42) faces the partition (6).

6. The air-conditioning type range hood according to claim 5, characterized in that: The projection of the air outlet of the cooling fan (42) along the air outlet direction falls entirely within the partition (6).

7. The air-conditioning type range hood according to claim 1, characterized in that: The fume extractor (22) is a centrifugal fan, and the plane where the air inlet of the fume extractor (22) is located is a vertical plane.

8. The air-conditioning type range hood according to claim 7, characterized in that: The impeller center axis of the oil fume fan (22) is perpendicular to the front plate of the casing (1), and the partition (6) is arranged horizontally, obliquely, or vertically.

9. The air-conditioning type range hood according to claim 8, characterized in that: The cooling fan (42) is located above the fume extractor (22), and the partition (6) is arranged horizontally and located above the central axis of the impeller.

10. The air-conditioning type range hood according to claim 9, characterized in that: The partition (6) can be a horizontal partition or be arranged at an angle downwards from the middle to the left and right sides or at an angle upwards from the middle to the left and right sides.

11. The air-conditioning type range hood according to claim 8, characterized in that: The cooling fan (42) is located on the left or right side of the fume extractor (22), and correspondingly, the partition (6) is located on the left or right side of the impeller's central axis.

12. The air-conditioning type range hood according to claim 8, characterized in that: The exhaust fan (22) rotates left and right so that the exhaust direction of the exhaust fan (22) is tilted upward. An exhaust hood (24) is installed at the exhaust outlet of the exhaust fan (22).

13. The air-conditioning type range hood according to any one of claims 1 to 12, characterized in that: The fume extractor (22) is a centrifugal fan with air intake on both the front and rear sides. The air intake channel (23) includes a main air intake channel (231) and an auxiliary air intake channel (232). The partition (6) is located in the auxiliary air intake channel (232).

14. The air-conditioning type range hood according to claim 13, characterized in that: The main air intake channel (231) is located on the front side of the fume extractor (22), and the auxiliary air intake channel (232) is located on the rear side of the fume extractor (22). Alternatively, the main air intake channel (231) is located on the rear side of the fume extractor (22), and the auxiliary air intake channel (232) is located on the front side of the fume extractor (22).

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