Refrigerated range hood

Abstract

A kind of refrigeration type range hood, fan frame is installed with range hood fan, compressor, condenser and evaporator are installed outside fan frame, fan frame is opened with air vent, valve plate is installed at air vent, first air inlet channel and second air inlet channel are formed with the two sides of range hood fan respectively, condenser is installed in air duct between heat dissipation air duct air inlet and air vent, range hood fan is double-side air inlet, according to different working conditions, valve plate can be rotated to first position or second position or third position.The refrigeration type range hood under refrigeration mode, the switching of the position of ventilation valve plate, so that the heat of refrigeration system can enter the corresponding air inlet channel of range hood through air vent, without additionally setting up heat dissipation fan to cool condenser, since the air volume of range hood is relatively large, therefore the size of condenser can be reduced, to reduce cost, also no need to install oil fume purification device in front of condenser, reduce cost while improving reliability.

Description

Technical Field

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

[0002] Existing technologies disclose various types of refrigerated range hoods, which add an air conditioning component to the existing 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. Currently, the condenser heat dissipation method of refrigerated range hoods on the market is often to exhaust heat into a common flue along with the range hood. For example, the "Kitchen Air Conditioning System" disclosed in Chinese invention patent No. 201811150307.4 (authorization announcement No. CN110966676 B) has a condenser installed in the air outlet duct downstream of the range hood fan. The air exhausted from the range hood fan is blown towards the condenser to remove heat from the refrigerant, thus eliminating the need for an additional outdoor unit. However, in this design, the air exhausted from the range hood fan is blown towards the condenser. Since the air contains many oil fume particles, an additional electrostatic device is often needed to filter these fine particles to keep the condenser surface clean. This increases costs and introduces the risk of errors, and the electrostatic device cannot completely filter oil stains. Furthermore, the internal space of the range hood is relatively small, making the space layout more demanding. For example, the Chinese utility model patent with patent number 202420143790.8 (authorization announcement number CN 221881576 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. The only way to increase the heat dissipation is to enlarge the condenser, which is not conducive to saving installation space and also increases the cost of the condenser. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cooling range hood that does not require a separate cooling fan and whose condenser size can be reduced, in light 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 refrigerated range hood, including a fan frame, a range hood fan installed inside the fan frame, a compressor, a condenser, and an evaporator installed outside the fan frame, the compressor, condenser, and evaporator being connected through refrigerant pipes, and a ventilation opening on the fan frame. The characteristic feature is that a valve plate is installed at the ventilation opening, the valve plate having a first position, a second position, and a third position; a first air inlet channel and a second air inlet channel are formed on both sides of the range hood; the range hood has a fume intake inlet and a heat dissipation air inlet. The condenser is installed in the air duct between the air inlet and the vent of the heat dissipation air duct. When the valve plate is in the first position, the vent is closed, and the oil fume inlet is connected to the first air inlet channel and the second air inlet channel. When the valve plate is in the second position, the vent is open, and the oil fume inlet is connected to the first air inlet channel. The air inlet of the heat dissipation air duct is connected to the second air inlet channel through the vent. When the valve plate is in the third position, the oil fume inlet is connected to the first air inlet channel and the second air inlet channel, and the air inlet of the heat dissipation air duct is connected to the second air inlet channel through the vent.

[0005] The fume extractor can have various structures. Preferably, the fume extractor is a centrifugal fan with a dual air inlet structure, with the first air inlet channel and the second air inlet channel respectively located on the left and right sides of the fume extractor.

[0006] To facilitate the smooth entry of heat from the condenser into the second air inlet channel, the condenser is located on the outside of the second air inlet channel and arranged adjacent to it.

[0007] To facilitate the entry of the compressor's heat into the second air inlet channel through the vent, the compressor is located in the air duct between the heat dissipation air inlet and the vent.

[0008] Preferably, the compressor is located upstream of the condenser along the airflow direction, and the condenser is close to the vent.

[0009] In order to smoothly open and close the fume inlet, a fume baffle is installed at the fume inlet.

[0010] Further preferably, it also includes an indoor unit fan, the indoor unit fan and the evaporator constitute an indoor unit module, the indoor unit module has an indoor unit air inlet and an indoor unit air outlet.

[0011] The indoor unit module can be located in multiple different positions. Preferably, the indoor unit module is located above the fan frame.

[0012] Further preferably, when the valve plate is in the first position, the valve plate is in a vertical position; when the valve plate is in the second position, the valve plate is in a horizontal position and blocks the oil fume inlet and the second air inlet channel; the third position is located between the first and second positions; when the valve plate is in the third position, the valve plate is tilted relative to the horizontal plane.

[0013] To facilitate electric control of the valve plate, the valve plate is an electric valve plate.

[0014] Compared with the prior art, the advantages of this utility model are as follows: The cooling range hood has a valve plate installed at the ventilation opening of the fan frame. The range hood has double-sided air intake. Depending on different working conditions, the valve plate can be rotated to the first, second, or third position. In cooling mode, under the action of the range hood, the heat of the cooling system can enter the corresponding air intake channel of the range hood through the ventilation opening. There is no need to set up a separate cooling fan to dissipate heat from the condenser. Since the air volume of the range hood is relatively large, the size of the condenser can be reduced, thereby reducing costs. There is also no need to install an oil fume purification device at the front end of the condenser, which improves reliability while reducing costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the present utility model (valve plate in the first position);

[0016] Figure 2 This is a schematic diagram of the structure of a range hood according to an embodiment of the present utility model (valve plate is in the second position);

[0017] Figure 3 This is a schematic diagram of the structure of a range hood according to an embodiment of the present utility model (the valve plate is in the third position);

[0018] Figure 4 This is a connection diagram of the refrigeration system according to an embodiment of the present invention. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown, the refrigerated range hood of this embodiment includes a fan frame 1, a range hood fan 2 installed inside the fan frame 1, and a compressor 3, a condenser 4, and an evaporator 5 installed outside the fan frame 1. The compressor 3, condenser 4, and evaporator 5 are connected through a refrigerant pipeline 10. A vent 11 is opened on the side wall of the fan frame 1, and a valve plate 6 is installed at the vent 11. The valve plate 6 is an electric valve plate, which can be switched between a first position, a second position, and a third position by a controller.

[0021] In this embodiment, the range hood fan 2 is a centrifugal fan with a dual-inlet structure. A first air inlet channel 21 and a second air inlet channel 22 are formed on the left and right sides of the range hood fan 2, respectively. In this embodiment, the compressor 3 and the condenser 4 constitute a heat dissipation module. A heat dissipation duct is formed inside the heat dissipation module, and the heat dissipation duct has a heat dissipation duct inlet 8. The condenser 4 and the compressor 3 are installed in the duct between the heat dissipation duct inlet 8 and the vent 11. Along the airflow direction, the compressor 3 is located upstream of the condenser 4, and the condenser 4 is located outside and adjacent to the second air inlet channel 22, close to the vent 11. The indoor unit fan 9 and the evaporator 5 constitute an indoor unit module, which is located above the fan frame 1. The indoor unit module has an indoor unit air inlet and an indoor unit air outlet. In air conditioning mode, cold air is blown out of the indoor unit air outlet.

[0022] The range hood has a fume inlet 7 at the bottom, which is located below the fan frame 1. The fume inlet 7 is equipped with a smoke baffle (not shown in the figure). Under the control of the controller, the smoke baffle can be linked with the valve plate 6.

[0023] like Figure 1 As shown, when the range hood is turned on alone, the valve plate 6 is in the first position, which is vertical. The vent 11 is closed, the baffle plate is open, and the fume inlet 7 is connected to the first air inlet channel 21 and the second air inlet channel 22. The fumes enter the first air inlet channel 21 and the second air inlet channel 22 from the fume inlet 7 and are discharged to the outside by the fume extraction fan 2. At this time, the working mode is the same as that of a normal range hood. The condenser 4 is completely isolated from the first air inlet channel 21 and the second air inlet channel 22 of the range hood, and the fumes will not contaminate the condenser 4.

[0024] like Figure 2 As shown, when the air conditioner is on, valve plate 6 is in the second position, horizontal, blocking the oil fume inlet 7 from the second air intake channel 22. Ventilation vent 11 is open, and oil fume inlet 7 is only connected to the first air intake channel 21. The cooling air duct inlet 8 is connected to the second air intake channel 22 through ventilation vent 11. Heat from the condenser 4 enters the second air intake channel 22 through ventilation vent 11 and is then exhausted to the outside by the oil fume extraction fan 2. At this time, because the airflow of the oil fume extraction fan 2 is large enough to provide sufficient airflow for the condenser 4 to dissipate heat, the size of the condenser can be reduced, thereby lowering the cost of the condenser.

[0025] like Figure 3As shown, when the range hood and air conditioner are turned on simultaneously, the valve plate 6 is positioned to the third position, which is between the first and second positions. The valve plate 6 automatically adjusts its position according to the required airflow from the range hood and the required cooling airflow from the air conditioner condenser. The valve plate 6 is tilted relative to the horizontal plane. At this time, the fume inlet 7 is connected to the first air inlet channel 21 and the second air inlet channel 22, and the cooling air inlet 8 is connected to the second air inlet channel 22 through the vent 11. The heat from the condenser 4 and the fumes drawn in by the fume inlet 7 are both exhausted to the outside through the fume extraction fan 2. Because the cooling airflow passes through the condenser 4 first and then through the fume extraction fan 2, the fumes will not contaminate the condenser 4.

[0026] This 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 range hood fan (2) is installed inside the fan frame (1), and a compressor (3), a condenser (4), and an evaporator (5) are installed outside the fan frame (1), wherein the compressor (3), the condenser (4), and the evaporator (5) are connected by a refrigerant pipeline (10), and a ventilation opening (11) is provided on the fan frame (1), characterized in that: A valve plate (6) is installed at the vent (11). The valve plate (6) has a first position, a second position, and a third position. A first air inlet channel (21) and a second air inlet channel (22) are formed on both sides of the range hood (2). The range hood has an oil fume inlet (7) and a heat dissipation duct inlet (8). The condenser (4) is installed in the duct between the heat dissipation duct inlet (8) and the vent (11). When the valve plate (6) is in the first position, the vent (11) is closed, and the oil fume inlet (7) and the first air inlet channel (21) are closed. 1) The second air intake channel (22) is connected. When the valve plate (6) is in the second position, the vent (11) is opened. The oil fume inlet (7) is connected to the first air intake channel (21). The heat dissipation air duct inlet (8) is connected to the second air intake channel (22) through the vent (11). When the valve plate (6) is in the third position, the oil fume inlet (7) is connected to the first air intake channel (21) and the second air intake channel (22). The heat dissipation air duct inlet (8) is connected to the second air intake channel (22) through the vent (11).

2. The refrigerated range hood according to claim 1, characterized in that: The fume extractor (2) is a centrifugal fan with a dual air intake structure. The first air intake channel (21) and the second air intake channel (22) are respectively located on the left and right sides of the fume extractor (2).

3. The refrigerated range hood according to claim 2, characterized in that: The condenser (4) is located outside the second air inlet channel (22) and arranged adjacent to it.

4. The refrigerated range hood according to claim 3, characterized in that: The compressor (3) is located in the air duct between the air inlet (8) and the ventilation opening (11) of the heat dissipation air duct.

5. The refrigerated range hood according to claim 4, characterized in that: Along the direction of airflow, the compressor (3) is located upstream of the condenser (4), which is close to the vent (11).

6. The refrigerated range hood according to claim 1, characterized in that: A smoke baffle is installed at the oil fume inlet (7).

7. The refrigerated range hood according to claim 1, characterized in that: It also includes an indoor unit fan (9), which and the evaporator (5) constitute an indoor unit module, which has an indoor unit air inlet and an indoor unit air outlet.

8. The refrigerated range hood according to claim 7, characterized in that: The indoor unit module is located above the fan frame (1).

9. The refrigerated range hood according to claim 1, characterized in that: When the valve plate (6) is in the first position, the valve plate (6) is in a vertical position. When the valve plate (6) is in the second position, the valve plate (6) is in a horizontal position and blocks the oil fume inlet (7) and the second air inlet channel (22). The third position is located between the first position and the second position. When the valve plate (6) is in the third position, the valve plate (6) is tilted relative to the horizontal plane.

10. The refrigerated range hood according to any one of claims 1 to 9, characterized in that: The valve plate (6) is an electric valve plate.

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