Air-conditioning type range hood

Abstract

An air-conditioning type extractor hood is characterized in that an oil smoke suction module, a compressor, a first heat exchange module and a second heat exchange 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, the first heat exchange module is provided with a first heat exchanger and a first fan, and the second heat exchange module is provided with a second heat exchanger and a second fan; the first heat exchange module is arranged outside the oil smoke suction fan, and an air outlet of the first fan is in fluid communication with an air inlet of the oil smoke suction fan. Compared with the prior art, the air conditioner type oil smoke suction device has the advantages that the first heat exchange module is arranged outside the oil smoke suction fan, the air outlet of the first fan is communicated with the air inlet of the oil smoke suction fan through fluid, and when the air conditioner type oil smoke suction device works in an air conditioner mode, airflow blown out by the first fan is sucked into the oil smoke suction fan; the oil fume cannot enter the first fan and the condenser under the resistance of the airflow blown out by the first fan, so that the first heat exchanger can be prevented from being polluted by the oil fume, 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 with a novel structure that effectively avoids the heat exchanger being polluted by oil fumes, 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 housing, the housing including an upper box and an air inlet body, the upper box body installing a fume extraction module, a compressor, a first heat exchange module and a second heat exchange module, the fume extraction module including a fan frame and a fume extraction fan installed inside the fan frame, the air inlet of the fume extraction fan and the corresponding side plate of the fan frame forming an air inlet channel, the air inlet body forming a smoke inlet channel connected to the air inlet channel, the first heat exchange module having a first heat exchanger and a first fan, the second heat exchange module having a second heat exchanger and a second fan, characterized in that: the first heat exchange module is located outside the fume extraction fan, the air outlet of the first fan and the air inlet of the fume extraction fan are fluidly connected.

[0006] As a preferred embodiment, the air outlet of the first fan is connected to the air inlet of the fume extractor fan via an air guide component.

[0007] The air guide can have various structures. Preferably, the air guide is an air guide hood located in the air inlet channel. The air inlet of the air guide hood is installed at the air outlet of the first fan, and the air outlet of the air guide hood faces the air inlet of the fume extractor.

[0008] In order to ensure that the cooling airflow from the air outlet of the air guide hood directly enters the interior of the range hood, the orthographic projection of the air outlet of the air guide hood onto the plane of the air inlet of the range hood falls entirely within the air inlet of the range hood.

[0009] Further preferably, the diameter of the air guide hood gradually widens from the air inlet to the air outlet. This design, as the outlet area of ​​the air guide hood gradually increases, reduces the outlet velocity of the cooling fan, increases static pressure, and reduces the impact on the air intake of the range hood, thereby reducing the impact on the smoke extraction effect and noise.

[0010] Further optimized, the air outlet area S1 of the air guide hood and the air inlet area S2 of the range hood satisfy 0.15≤S1 / S2≤1.5. When S1 is less than S2 / 2, turning on the air conditioner and range hood will affect the airflow of the cooling fan, thus affecting the performance of the air conditioner; when S1 is greater than S2 / 2, turning on the air conditioner and range hood will affect the airflow of the range hood, thus affecting the smoke extraction effect and noise. After testing, based on the requirements of cooling airflow and the airflow and noise of the range hood, 0.15≤S1 / S2≤1.5 is the preferred value.

[0011] In a further preferred embodiment, the fume extractor is a centrifugal fan, the central axis of the impeller of the fume extractor is perpendicular to the front plate of the casing, the first fan is located above the fume extractor, the air outlet of the first fan is vertically downward and faces the air inlet channel, and the entire air guide hood is located above the central axis of the impeller of the fume extractor.

[0012] Further preferably, the range hood is a centrifugal fan with front and rear dual-side air intakes. The air intake channel includes a main air intake channel and an auxiliary air intake channel, and the air guide hood is located within the auxiliary air intake channel. This configuration, employing a dual-intake structure, ensures sufficient airflow from the range hood and helps reduce the impact of the cooling fan's airflow on the fume extraction effect.

[0013] As another preferred embodiment, the air inlet channel is equipped with a partition, which divides the air inlet of the range hood into a first air inlet and a second air inlet. The first air inlet is connected to the air outlet of the first fan, and the air inlet body has a smoke inlet, which is connected to the second air inlet. With this configuration, taking cooling mode as an example, the first fan is also a cooling fan. The cooling airflow blown by the cooling fan can enter the range hood through the first air inlet, while the oily smoke airflow can enter the range hood through the second air inlet. The partition reduces the likelihood of interference between the cooling airflow and the oily smoke airflow, facilitating a balance between the airflow of the cooling fan and the range hood, reducing fan noise, and ensuring both the cooling effect of the cooling fan on the condenser and the performance of the range hood, thus ensuring effective smoke extraction. Furthermore, the partition prevents oily smoke from entering the cooling fan, significantly reducing the probability of the condenser being contaminated by oily smoke, thereby improving the air conditioning's energy efficiency.

[0014] Further preferably, ventilation holes are provided on the partition, and the air outlet of the first 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 first fan are turned on, the fume airflow and the airflow blown out by the first fan can hardly cross each other through the ventilation holes, thus avoiding interference between the two airflows.

[0015] To meet the airflow and noise requirements of the first fan and the range hood, the area S3 of the first air inlet and the area S4 of the second air inlet must satisfy 0.3 ≤ S3 / S4 ≤ 3. When S3 is less than S4, 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 S3 is greater than S4, 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.

[0016] In order for the partition to effectively block the air blown out of the first fan outlet, the air outlet of the first fan is oriented towards the partition.

[0017] In a further preferred embodiment, the projection of the air outlet of the first fan along the air outlet direction falls entirely within the partition. With this configuration, the air blown out by the first fan is blocked by the partition, preventing it from flowing directly to the fume inlet on the other side of the partition.

[0018] 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 and first air inlets 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 first fan are on, the partition effectively isolates the heat dissipation airflow from the fume airflow.

[0019] 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.

[0020] In a further preferred embodiment, the impeller's central axis of the range hood is perpendicular to the front panel of the casing, the first fan is positioned above the range hood, and the partition is arranged horizontally or diagonally above the impeller's central axis. This configuration ensures that the area of ​​the second air inlet is larger than that of the first air inlet, guaranteeing sufficient fume extraction efficiency.

[0021] More 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.

[0022] The first fan can also be installed in other different locations. Preferably, the first 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.

[0023] 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.

[0024] 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.

[0025] The range hood can have various structures. Preferably, the range hood has a single-sided air intake structure. Correspondingly, there is one air intake channel, and the air outlet of the first fan is connected to the air intake channel.

[0026] The first heat exchange module and the second heat exchange module can be arranged in various ways. Preferably, both the first heat exchange module and the second heat exchange module are located above the range hood.

[0027] As another preferred embodiment, one of the first heat exchange module and the second heat exchange module is located directly above the range hood, and the other is located diagonally above the range hood. When the second heat exchange module is located directly above the range hood, the airflow is smooth, the resistance is low, and the airflow is more uniform.

[0028] As another preferred embodiment, one of the first heat exchange module and the second heat exchange module is located directly above or diagonally above the range hood, and the other is located to the left or right of the range hood.

[0029] The compressor can be installed in several different locations. Preferably, the compressor is located to the left, right, or above the range hood. In particular, when the compressor is located above the range hood, the noise level is lower, resulting in a better user experience.

[0030] In order to allow the air blown out by the second heat exchange module to blow towards the user, an air conditioning outlet is provided on the front of the housing, and the air outlet of the second fan is in fluid communication with the air conditioning outlet.

[0031] In order to ensure that the air from the air conditioner can be blown out smoothly through the air conditioner outlet, the outlet of the second fan is fluidly connected to the air conditioner outlet through an air guide assembly.

[0032] In a further preferred embodiment, the air conditioner vent is horizontal and located at the upper or middle part of the front of the casing. An air outlet panel is installed at the air outlet, and an air guide structure for adjusting the air outlet angle is installed on the air outlet panel. Users can adjust the air guide structure as needed to improve the user experience.

[0033] As another preferred option, an air outlet duct is connected to the air outlet of the second fan, and the air outlet duct is in fluid communication with the interior of the kitchen. With this configuration, users can install air outlets in different locations in the kitchen as needed. As long as the air outlet duct is connected to the air outlet, air conditioning air can be blown out from the air outlet. Typically, the air outlet can be installed on the ceiling of the kitchen.

[0034] Further preferably, the exhaust fan is a centrifugal fan, with the impeller's central axis perpendicular to the front plate of the casing. The fan rotates left and right, causing the air outlet to face upwards at an angle. An exhaust hood is installed at the exhaust outlet, with its outlet facing vertically upwards. After the fan rotates a certain angle, the exhaust hood's installation position lowers, and its length can be extended, resulting in a smoother transition between the hood and the fan outlet, thus reducing wind resistance and noise.

[0035] Further preferably, the maximum rotation angle of the fume extractor is 60°.

[0036] Further preferably, the rotation angle of the fume extractor is 40°.

[0037] The exhaust hood is arranged adjacent to either the first heat exchange module or the second heat exchange module. Thus, after the range hood rotates, the exhaust hood is positioned to the left or right. In this case, the first heat exchange module can typically be placed between the second heat exchange module and the exhaust hood, or the second heat exchange module can be placed between the first heat exchange module and the exhaust hood.

[0038] To reduce noise, a noise reduction structure is preferably provided in the smoke inlet channel and / or air inlet channel.

[0039] In order for the range hood to operate in cooling mode, the first heat exchange module is a heat dissipation module, the second heat exchange module is an indoor unit module, and correspondingly, the first heat exchanger is a condenser, the first fan is a heat dissipation fan, the second heat exchanger is an evaporator, and the second fan is an indoor unit fan.

[0040] In order to dissipate heat from the compressor using the cooling airflow, the compressor is located upstream of the condenser, along the direction of the cooling airflow of the cooling module.

[0041] The range hood also includes a power supply board, which is located upstream of the condenser, along the airflow direction of the heat dissipation module. This arrangement allows for efficient heat dissipation of the power supply board using the airflow, improving the operational stability of the range hood.

[0042] To prevent the heat generated by the compressor and heat exchange module from adversely affecting the power board, the compressor and the heat dissipation modules in the first and second heat exchange modules are all isolated from the power board by the fume extraction fan.

[0043] Compared with the prior art, the advantages of this utility model are as follows: the first heat exchange module of the air-conditioning type oil fume extraction has a first heat exchanger and a first fan, and the second heat exchange module has a second heat exchanger and a second fan. The first heat exchange module is located outside the oil fume extraction fan, and the air outlet of the first fan is fluidly connected to the air inlet of the oil fume extraction fan. When working in air-conditioning mode, the airflow blown out by the first fan is drawn into the oil fume extraction fan. Due to the resistance of the airflow blown out by the first fan, the oil fumes will not enter the first fan and condenser, thereby avoiding the first heat exchanger from being contaminated by oil fumes, which in turn helps to improve the energy efficiency of the air conditioner. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of the range hood according to an embodiment of the present utility model;

[0045] Figure 2 for Figure 1 The diagram shows the internal structure of the range hood.

[0046] Figure 3 for Figure 1 The diagram shows another internal structure of the range hood.

[0047] Figure 4 for Figure 3 The diagram shows the structure of the range hood from another angle;

[0048] Figure 5 for Figure 1 The diagram shows a cross-sectional view of the range hood.

[0049] Figure 6 This is a schematic diagram of the connection of the air conditioning components according to an embodiment of the present utility model;

[0050] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0051] Figure 8 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0052] Figure 9 This is a structural schematic diagram of Embodiment 4 of the present invention;

[0053] Figure 10 This is a structural schematic diagram of Embodiment 5 of the present utility model;

[0054] Figure 11 This is a schematic diagram of the structure of Embodiment Six of this utility model;

[0055] Figure 12 This is a cross-sectional view of the structure of Embodiment Six of this utility model;

[0056] Figure 13 This is a structural schematic diagram of Embodiment Seven of the present utility model. Detailed Implementation

[0057] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0058] Example 1:

[0059] like Figures 1 to 6 As shown, the air-conditioning type range hood of this embodiment includes a housing 1, which includes an upper casing 11 and an air inlet 12. The upper casing 11 houses a fume extraction module 2, a compressor 3, a first heat exchange module 4, and a second heat exchange 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 inlet channel 23 is formed between the air inlet of the fume extraction fan 22 and the corresponding side plate of the fan frame 21. An air inlet channel 121, connected to the air inlet channel 23, is formed inside the air inlet 12. Fumes enter the air inlet channel 23 through the air inlet channel 121 and are finally discharged outwards by the fume extraction fan 22. To reduce the noise during operation, noise reduction devices can be installed in the air inlet channel 121 and the air inlet channel 23. These devices can be sound-absorbing cotton or other different noise reduction structures.

[0060] The first heat exchange module 4 has a first heat exchanger 41 and a first fan 42, and the second heat exchange module 5 has a second heat exchanger 51 and a second fan 52. Both the first heat exchange module 4 and the second heat exchange module 5 are located outside the range hood 22. In cooling mode, the first heat exchange module 4 is a heat dissipation module, and the second heat exchange module 5 is an indoor unit module. Correspondingly, the first heat exchanger 41 is a condenser, the first fan 42 is a heat dissipation fan, the second heat exchanger 51 is an evaporator, and the second fan 52 is an indoor unit fan.

[0061] by Figure 3 Arrow A points to the right. Compressor 3 is located to the left of the range hood 22. The first heat exchange module 4 is located directly above the range hood 22, and the second heat exchange module 5 is located to the upper left of the range hood 22. The air outlet of the first fan 42 faces downward and is fluidly connected to the air inlet of the range hood 22. An air conditioning outlet is located on the front of the casing 1, and the air outlet of the second fan 52 is fluidly connected to the air conditioning outlet. In cooling mode, the first fan 42 blows out hot air, which enters the air inlet of the range hood, while cold air is blown out through the air conditioning outlet.

[0062] In this embodiment, the air outlet of the first fan 42 is connected to the air inlet of the range hood 22 via a guide vane. The guide vane in this embodiment is a guide hood 6 located within the air inlet channel 23. The air inlet port of the guide hood 6 is installed at the air outlet of the first fan 42, and the air outlet port of the guide hood 6 faces the air inlet of the range hood 22. That is, the air outlet of the first fan 42 is in fluid communication with the air inlet of the range hood 22 through the guide hood 6. Furthermore, the orthographic projection of the air outlet of the guide hood 6 onto the plane of the range hood air inlet falls entirely within the air inlet of the range hood 22. This arrangement allows the cooling airflow from the guide hood outlet to directly enter the interior of the range hood. Of course, besides the guide hood 6, other guide vanes with different structures can also be used.

[0063] In this embodiment, the diameter of the air guide hood 6 gradually opens from the air inlet to the air outlet. As the outlet area of ​​the air guide hood 6 gradually increases, the outlet speed of the first fan 42 can be reduced, the static pressure can be increased, the impact on the air intake of the range hood can be reduced, and the impact on the smoke extraction effect and noise can be reduced.

[0064] The air outlet area S1 of the air guide hood 6 and the air inlet area S2 of the range hood satisfy 0.15≤S1 / S2≤1.5. When S1 is less than S2 / 2, turning on the air conditioner and range hood will affect the airflow of the cooling fan, thus affecting the performance of the air conditioner; when S1 is greater than S2 / 2, turning on the air conditioner and range hood will affect the airflow of the range hood, thus affecting the smoke extraction effect and noise. After testing, based on the requirements of cooling airflow and the airflow and noise of the range hood, 0.15≤S1 / S2≤1.5 is the preferred value.

[0065] 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 plane where the air intake of the fume extractor 22 is located is a vertical plane. Specifically, the central axis of the impeller 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, and 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 first fan 42 is connected to this air intake channel 23.

[0066] In this embodiment, the first fan 42 is positioned above the fume extractor 22, with its outlet facing vertically downwards and towards the auxiliary air intake channel 232. The air guide 6 is located within the auxiliary air intake channel 232 and is situated entirely above the impeller's central axis. With the air guide 6 installed, the hot air blown out by the first fan 42 (i.e., the cooling fan) will not escape but will be entirely drawn into the fume extractor 22, and the fume airflow will not affect the cooling airflow. Furthermore, if a single-intake structure fume extractor is used, there is only one air intake channel, and the outlet of the first fan 42 is connected to this air intake channel 23.

[0067] An air conditioning vent is located on the upper front of the casing 1. The air conditioning vent is horizontal and connected to the air conditioning vent via the air guide assembly 8. In cooling mode, the cold air blown by the second fan 52 is blown out through the air conditioning vent. The first fan 42 dissipates heat from the condenser 41, and the hot air blown by the first fan 42 enters the air inlet of the range hood 22 directly through the air guide shroud 6. The fumes enter the air inlet duct 23 of the upper casing 11 through the smoke inlet duct 121 of the air inlet body 12. Most of the fumes enter the range hood 22 through the main air inlet duct 231, and a small portion enters the range hood 22 through the auxiliary air inlet duct 232. The fumes do not interfere with the cooling airflow before entering the range hood 22.

[0068] An air outlet panel 9 is installed at the air conditioner's air outlet. An air guide structure 91 is installed on the air outlet panel 9 to adjust the air outlet angle. The air guide structure 91 can adjust the air outlet angle, directing the air conditioning air towards the cook or avoiding direct airflow. Users can adjust this manually or automatically as needed. Additionally, an air outlet duct (not shown in the diagram) can be connected to the air outlet of the second fan 52. The air outlet duct is fluidly connected to the kitchen interior. The air conditioner's air outlet can be installed in the kitchen ceiling or other locations within the kitchen. The air conditioning air passes through the air outlet duct and exits from the air outlet. The location of the air conditioner's air outlet is flexible, allowing users to choose according to their needs.

[0069] 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.

[0070] In this embodiment, the range hood 22 rotates to the right, making the plane of its outlet a vertical plane, with the airflow direction tilted upwards and to the right. An exhaust hood 24 is installed at the outlet of the range hood 22, with the 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 first heat exchange module 4. Furthermore, it frees up space at the upper left of the range hood 22 to install the second heat exchange module 5, meaning the first heat exchange module 4 is located between the second heat exchange module 5 and the exhaust hood 24. The maximum rotation angle of the range hood 22 is 60°; in this embodiment, the rotation angle is 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 extended, thus making the transition between the exhaust hood 24 and the fan outlet smoother, which helps reduce wind resistance and noise.

[0071] 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.

[0072] In this embodiment, the power board 10 is located at the lower right corner of the range hood 22. Since the compressor 3 is located at the lower left corner of the range hood 22, the first heat exchange module 4 is located directly above the range hood 22, and the second heat exchange 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 from adversely affecting the power board 10.

[0073] The positional relationship between the first heat exchange module 4 and the second heat exchange module 5 and the range hood 22 can be varied. For example, one of the first heat exchange module 4 and the second heat exchange module 5 can be located directly above or diagonally above the range hood 22, while the other is located to the left or right of the range hood 22. The positional relationship between the compressor 3 and the range hood 22 is also not limited; for example, the compressor 3 can be located to the left, right, or above the range hood 22.

[0074] Example 2:

[0075] like Figure 7As shown, in this embodiment, the first heat exchange module 4 of the range hood is located above the left side of the range hood fan 22. The air guide hood 6 is located on the upper left side of the air inlet of the range hood fan 22. The air outlet of the first fan 42 is arranged at an angle to the lower right and is connected to the air inlet of the range hood fan 22 through the air guide hood 6. In this embodiment, the second heat exchange module 5 is located directly above the range hood fan 22, and the air outlet hood 24 is located to the right of the second heat exchange module 5. The remaining structure of this embodiment is the same as that of Embodiment 1, and will not be described further here.

[0076] Example 3:

[0077] like Figure 8 As shown, in this embodiment, the first heat exchange module 4 of the range hood is located on the left side of the range hood fan 22. The air guide hood 6 is located on the left side of the air inlet of the range hood fan 22. The air outlet of the first fan 42 is directed to the right and connected to the air inlet of the range hood fan 22 through the air guide hood 6. In this embodiment, the second heat exchange module 5 is located directly above the range hood fan 22, and the air outlet hood 24 is located on the right side of the second heat exchange module 5. In addition, in this embodiment, the compressor 3 is located above the range hood fan 22 and to the left of the second heat exchange module 5. Along the direction of the heat dissipation airflow, the compressor 3 is located upstream of the condenser 41 and the first fan 42. The heat dissipation air dissipates heat from the compressor 3 before passing through the condenser to improve its operational reliability. The power board 10 is located at the lower right corner of the range hood fan 22 to prevent the heat from the compressor 3 and the heat dissipation module from affecting the power board 10. The remaining structures of this embodiment are the same as those of Embodiment 1, and will not be described in detail here.

[0078] Example 4:

[0079] like Figure 9 As shown, compared with Embodiment 3, the positions of the compressor 3 and the power board 10 are interchanged in this embodiment. That is, the compressor 3 is located at the lower right corner of the range hood 22, and the power board 10 is located at the upper left corner of the range hood 22. Furthermore, along the flow direction of the heat dissipation airflow, the power board 10 is located upstream of the condenser 41 and the first fan 42. The heat dissipation airflow first dissipates heat from the power board 10 before passing through the condenser, so as to improve its operational reliability.

[0080] Example 5:

[0081] like Figure 10 As shown, in this embodiment, the second heat exchange module 5 is located on the left side of the range hood 22, and the compressor 3 is located above the second heat exchange module 5. The air conditioning outlet is located in the center of the front of the casing 1. The distance between the air outlet of the second fan 52 and the air conditioning outlet is relatively short, resulting in smoother airflow and a lower height for the air conditioning outlet. The remaining structure of this embodiment is the same as that of Embodiment 1, and will not be described further here.

[0082] Example 6:

[0083] like Figure 11 and Figure 12 As shown, the fume extractor 22 in this embodiment is a centrifugal fan with a front and rear dual air intake structure. The air intake channel 23 includes a main air intake channel 231 and an auxiliary air intake channel 232. The central axis of the impeller of the fume extractor 22 is perpendicular to the front plate of the casing 1. The first fan 42 is located above the fume extractor. A baffle 7 is installed in the auxiliary air intake channel 232. The baffle 7 is arranged horizontally and located above the central axis of the impeller. The baffle 7 is V-shaped, that is, the baffle 7 is arranged obliquely upward from the middle to the left and right sides. The first fan 42 is located directly above the fume extractor 22, and the air outlet of the first fan 42 faces the baffle 7. The projection of the air outlet of the first fan 42 along the air outlet direction falls entirely within the baffle 7. Thus, the baffle 7 can effectively block the downward air blown by the first fan 42. In addition to being arranged horizontally, the baffle 7 can also be arranged obliquely. If the first fan 42 is located to the left or right of the fume extraction fan 22, the partition 7 can also be set vertically and located on the side closer to the first fan 42.

[0084] The partition 7 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 first 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 first 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 S3 of the first air inlet 221 and the area S4 of the second air inlet 222 satisfy 0.3≤S3 / S4≤3. When S3 is less than S4, turning on the air conditioner and the range hood will affect the airflow of the first fan 42, thus affecting the performance of the air conditioner; when S3 is greater than S4, 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 S3 / S4 within a reasonable range can meet the air volume and noise requirements of the first fan 42 and the fume extraction fan 22, achieving the best balance.

[0085] In this embodiment, the partition 7 has ventilation holes 71, and the air outlet of the first fan 42 is connected to the second air inlet 222 through the ventilation holes 71. After the ventilation holes 71 are provided on the partition 7, when only the range hood fan 22 is turned on, the second air inlet 222 and the first air inlet 221 are connected through the ventilation holes 71. 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 fan 22 and the first fan 42 are turned on, the fume airflow and the heat dissipation airflow can hardly cross each other through the ventilation holes, thereby avoiding mutual interference between the fume airflow and the heat dissipation airflow.

[0086] Example 7:

[0087] like Figure 13 As shown, the partition 7 adopts an inverted V-shape, that is, the partition 7 is arranged diagonally downward from the middle to the left and right sides. Its specific working principle is the same as that of the V-shaped partition, and will not be described in detail here. The partition 7 can also be flat. Regardless of the different structures of the partition 7, 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 first fan 42 and the air volume of the range hood.

[0088] Furthermore, the partition 7 can be without openings, but its width must be less than the width of the auxiliary air inlet channel 232. This ensures that when only the range hood 22 is turned on, the oil fume airflow can enter the first air inlet 221 through the gap next to the partition 7, thereby ensuring sufficient airflow and effective oil fume extraction. When the range hood and air conditioner are turned on simultaneously, although there is a gap next to the partition 7, most of the cooling airflow still enters the range hood 22 through the first air inlet 221, and most of the oil fume airflow still enters the range hood 22 through the second air inlet 222.

[0089] 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.

[0090] 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), the housing (1) including an upper casing (11) and an air inlet body (12), wherein an oil fume extraction module (2), a compressor (3), a first heat exchange module (4) and a second heat exchange module (5) are installed in the upper casing (11), the oil fume extraction module (2) including a fan frame (21) and an oil fume extraction fan (22) installed inside the fan frame (21), an air inlet channel (23) is formed between the air inlet of the oil fume extraction fan (22) and the corresponding side plate of the fan frame (21), and an air inlet channel (121) communicating with the air inlet channel (23) is formed inside the air inlet body (12), the first heat exchange module (4) having a first heat exchanger (41) and a first fan (42), and the second heat exchange module (5) having a second heat exchanger (51) and a second fan (52), characterized in that: The first heat exchange module (4) is located outside the fume extractor (22), and the air outlet of the first fan (42) is in fluid communication with the air inlet of the fume extractor (22).

2. The air-conditioning type range hood according to claim 1, characterized in that: The air outlet of the first fan (42) is connected to the air inlet of the fume extractor (22) through an air guide.

3. The air-conditioning type range hood according to claim 2, characterized in that: The air guide is an air guide hood (6) installed in the air inlet channel (23). The air inlet of the air guide hood (6) is installed at the air outlet of the first fan (42), and the air outlet of the air guide hood (6) faces the air inlet of the fume extractor (22).

4. The air-conditioning type range hood according to claim 3, characterized in that: The orthographic projection of the air outlet of the air guide hood (6) onto the plane where the air inlet of the fume extractor (22) is located falls entirely within the air inlet of the fume extractor (22).

5. The air-conditioning type range hood according to claim 3, characterized in that: The diameter of the air guide shroud (6) gradually opens from the air inlet to the air outlet.

6. The air-conditioning type range hood according to claim 3, characterized in that: The air outlet area S1 of the air guide hood (6) and the air inlet area S2 of the oil fume fan satisfy 0.15≤S1 / S2≤1.

5.

7. The air-conditioning type range hood according to claim 3, characterized in that: The fume extractor (22) is a centrifugal fan. The central axis of the impeller of the fume extractor (22) is perpendicular to the front plate of the casing (1). The first fan (42) is located above the fume extractor (22). The air outlet of the first fan (42) is vertically downward and faces the air inlet channel (23). The air guide hood (6) is located above the central axis of the impeller of the fume extractor (22).

8. The air-conditioning type range hood according to claim 3, 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 air guide hood (6) is located in the auxiliary air intake channel (232).

9. The air-conditioning type range hood according to claim 1, characterized in that: The air inlet channel (23) is provided with a partition (7), which divides the air inlet of the fume extractor (22) into a first air inlet (221) and a second air inlet (222). The first air inlet (221) is connected to the air outlet of the first fan (42). The air inlet body (12) has a smoke inlet (122), and the second air inlet (222) is connected to the smoke inlet (122).

10. The air-conditioning type range hood according to claim 9, characterized in that: A ventilation hole (71) is provided on the partition (7), and the air outlet of the first fan (42) is connected to the second air inlet (222) through the ventilation hole (71).

11. The air-conditioning type range hood according to claim 9, characterized in that: The area S3 of the first air inlet (221) and the area S4 of the second air inlet (222) satisfy 0.3≤S3 / S4≤3.

12. The air-conditioning type range hood according to claim 9, characterized in that: The air outlet of the first fan (42) faces the partition (7).

13. The air-conditioning type range hood according to claim 12, characterized in that: The projection of the air outlet of the first fan (42) along the air outlet direction falls entirely within the partition (7).

14. The air-conditioning type range hood according to claim 9, characterized in that: The fume extractor (22) is a centrifugal fan. The central axis of the impeller of the fume extractor (22) is perpendicular to the front plate of the casing (1). The first fan (42) is located above the fume extractor. The partition (7) is arranged horizontally or obliquely and located above the central axis of the impeller.

15. The air-conditioning type range hood according to claim 14, characterized in that: The partition (7) can be a horizontal partition or be arranged diagonally downward from the middle to the left and right sides or diagonally upward from the middle to the left and right sides.

16. The air-conditioning type range hood according to claim 9, 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 (7) is located in the auxiliary air intake channel (232).

17. The air-conditioning type range hood according to claim 1, characterized in that: The fume extractor (22) has a single-sided air intake structure. Correspondingly, there is one air intake channel (23), and the air outlet of the first fan (42) is connected to the air intake channel (23).

18. The air-conditioning type range hood according to claim 1, characterized in that: The first heat exchange module (4) and the second heat exchange module (5) are both located above the fume extraction fan (22).

19. The air-conditioning type range hood according to claim 1, characterized in that: One of the first heat exchange module (4) and the second heat exchange module (5) is located directly above the fume extractor (22), and the other is located diagonally above the fume extractor (22).

20. The air-conditioning type range hood according to claim 1, characterized in that: One of the first heat exchange module (4) and the second heat exchange module (5) is located directly above or diagonally above the fume extractor (22), and the other is located to the left or right of the fume extractor (22).

21. The air-conditioning type range hood according to claim 1, characterized in that: The compressor (3) is located on the left, right or above the fume extractor (22).

22. The air-conditioning type range hood according to claim 1, characterized in that: An air conditioning outlet is provided on the front of the housing (1), and the outlet of the second fan (52) is in fluid communication with the air conditioning outlet.

23. The air-conditioning type range hood according to claim 22, characterized in that: The air outlet of the second fan (52) is in fluid communication with the air outlet of the air conditioner through the air guide assembly (8).

24. The air-conditioning type range hood according to claim 23, characterized in that: The air conditioner outlet is horizontal and located on the upper or middle part of the front of the casing (1). An air outlet panel (9) is installed on the air conditioner outlet, and an air guide structure (91) for adjusting the air outlet angle is installed on the air outlet panel (9).

25. The air-conditioning type range hood according to claim 1, characterized in that: An air outlet pipe is connected to the air outlet of the second fan (52), and the air outlet pipe is in fluid communication with the interior of the kitchen.

26. The air-conditioning type range hood according to claim 1, characterized in that: The fume extractor (22) is a centrifugal fan. The central axis of the impeller of the fume extractor (22) is perpendicular to the front plate of the casing (1). The fume extractor (22) rotates left and right so that the air outlet of the fume extractor (22) is inclined upward. An air outlet hood (24) is installed at the air outlet of the fume extractor (22), and the air outlet of the air outlet hood (24) is vertically upward.

27. The air-conditioning type range hood according to claim 26, characterized in that: The maximum rotation angle of the oil fume fan (22) is 60°.

28. The air-conditioning type range hood according to claim 1, characterized in that: A noise reduction structure is provided in the smoke inlet channel (121) and / or air inlet channel (23).

29. The air-conditioning type range hood according to any one of claims 1 to 28, characterized in that: The first heat exchange module (4) is a heat dissipation module, the second heat exchange module (5) is an indoor unit module, and correspondingly, the first heat exchanger (41) is a condenser, the first fan (42) is a heat dissipation fan, the second heat exchanger (51) is an evaporator, and the second fan (52) is an indoor unit fan.

30. The air-conditioning type range hood according to claim 1, characterized in that: It also includes a power board (10), and the compressor (3), the first heat exchange module (4), and the second heat exchange module (5) are all isolated from the power board through the fume extraction fan (22).

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