Refrigerated range hood

Abstract

A kind of refrigeration range hood, fan frame is installed with range hood fan, compressor, condenser and evaporator are installed outside fan frame, the side wall of fan frame is opened with vent, valve plate is installed at vent, the fan air inlet of range hood fan is single-sided air inlet, condenser is arranged in air duct between heat dissipation air inlet and vent, in single open range hood mode, valve plate switches to first position, in single open air conditioner mode, valve plate switches to second position, in range hood and air conditioner both open mode, valve plate switches to third position and separates fan air inlet into first air inlet and second air inlet.The refrigeration range hood switches valve plate to corresponding position in different working mode, when air conditioner is opened, condenser heat enters fan air inlet through vent and is then discharged outward, without additionally setting heat dissipation fan to dissipate heat for condenser, since range hood fan air volume is relatively large, therefore, condenser size can be reduced, cost is reduced.

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 side wall of 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; the air inlet of the range hood fan is a single-sided air inlet; and the range hood has an oil fume intake inlet and a heat dissipation air inlet. The condenser is located in the air duct between the heat dissipation air inlet and the vent. In the single-operation range hood mode, the valve plate switches to the first position to close the vent, thereby connecting the oil fume inlet with the fan air inlet. In the single-operation air conditioner mode, the valve plate switches to the second position to open the vent, thereby connecting the heat dissipation air inlet with the fan air inlet through the vent. In the mode where both the range hood and the air conditioner are on, the valve plate switches to the third position to separate the fan air inlet into the first air inlet and the second air inlet. The oil fume inlet is connected to the first air inlet, and the heat dissipation vent is connected to the second air inlet through the vent.

[0005] Preferably, when both the range hood and air conditioner are on, the opening angle of the valve plate can be automatically adjusted according to the required air volume of the range hood and the required heat dissipation air volume of the condenser.

[0006] In order to automatically adjust the position of the valve plate, the valve plate is an electric valve plate and also includes a controller. The controller adjusts the opening angle of the valve plate according to the required air volume of the range hood and the required heat dissipation air volume of the condenser.

[0007] To make the various opening positions of the valve plate more reasonable, in the first position the valve plate is in a vertical position, in the second position the valve plate is in a horizontal position and blocks the oil fume inlet and the single-sided air inlet, and in the third position the valve plate is tilted relative to the horizontal plane.

[0008] The range hood can be distributed in various ways. Preferably, the range hood is a vertically arranged centrifugal fan, with the central axis of the impeller of the centrifugal fan perpendicular to the front of the range hood. Correspondingly, the air inlet of the fan is a front air inlet or a rear air inlet.

[0009] In order to simultaneously dissipate heat from the compressor and the condenser, the compressor is located in the air duct between the heat dissipation air inlet and the vent, and along the air flow direction, the compressor is located upstream of the condenser, and the condenser is close to the vent.

[0010] In order to open or close the fume inlet under different working conditions, a fume baffle is installed at the fume inlet.

[0011] To avoid mutual interference between the cooling capacity of the indoor unit module and the heat dissipation module, preferably, an indoor unit fan is also included. The indoor unit fan and the evaporator constitute the indoor unit module, which is located above the fan frame. The compressor and the condenser constitute the heat dissipation module, which is located on the left or right side of the fan frame.

[0012] In order to blow cold air from the front of the range hood, the indoor unit module has an indoor unit air inlet and an indoor unit air outlet. The indoor unit air inlet is located at the top of the indoor unit module, and the indoor unit air outlet is located at the front of the indoor unit module.

[0013] 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 on the side wall of the fan frame, and the air inlet of the range hood is a single-sided air inlet. The valve plate can be switched to the corresponding position in different working modes. Furthermore, when the air conditioner is turned on, the heat of the condenser can enter the air inlet of the fan through the ventilation opening and then be discharged to the outside, without the 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

[0014] 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);

[0015] 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);

[0016] 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);

[0017] Figure 4 This is a connection diagram of the refrigeration system according to an embodiment of the present invention. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] 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.

[0020] In this embodiment, the air inlet 21 of the range hood 2 is a single-sided air inlet. The range hood 2 is a vertically arranged centrifugal fan. The central axis of the impeller of the centrifugal fan is perpendicular to the front of the range hood. Correspondingly, the air inlet 21 is either a front air inlet or a rear air inlet.

[0021] In this embodiment, the compressor 3 and the condenser 4 constitute a heat dissipation module, which is located on the right side of the fan frame 1. A heat dissipation duct is formed inside the heat dissipation module, and the duct has a heat dissipation air inlet 8. The condenser 4 and the compressor 3 are installed within the duct between the heat dissipation air inlet 8 and the vent 11. Furthermore, along the airflow direction, the condenser 4 is located upstream of the compressor 3 and 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, the indoor unit air outlet blows out cold air. In this embodiment, the indoor unit air inlet is located at the top of the indoor unit module, and the indoor unit air outlet is located at the front of the indoor unit module.

[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, valve plate 6 is in the first position, vertical, vent 11 is closed, baffle plate is open, and fume inlet 7 is connected to fan inlet 21. Fumes enter fan inlet 21 from fume inlet 7 and are exhausted by the fume extraction fan 2. At this time, the operating mode is the same as that of a normal range hood. The condenser 4 is completely isolated from fan inlet 21, and fumes will not contaminate the condenser 4.

[0024] like Figure 2 As shown, when the air conditioner is turned on, valve plate 6 is in the second position, horizontal, blocking the oil fume inlet 7 and the fan inlet 21. Ventilation vent 11 is open, and heat dissipation air inlet 8 is connected to fan inlet 21 through ventilation vent 11. The heat from condenser 4 enters the second air intake channel 22 through ventilation vent 11 and is then discharged to the outside by the oil fume fan 2. At this time, since the air volume of the oil fume fan 2 is large enough to provide enough air for condenser 4 to dissipate heat, the size of the condenser can be reduced, thereby reducing 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 in the third position, which is between the first and second positions. The valve plate 6 is tilted relative to the horizontal plane, and the fan inlet 21 is divided into a first inlet 211 and a second inlet 212. Furthermore, the position and opening angle of the valve plate 6 can be automatically adjusted according to the required airflow of the range hood 2 and the required heat dissipation airflow of the condenser 4. At this time, the fume inlet 7 is connected to the first inlet 211, and the heat dissipation inlet 8 is connected to the second inlet 212 through the vent 11. The heat from the condenser 4 and the fumes drawn in by the fume inlet 7 are both discharged to the outside through the range hood 2. Because the heat dissipation airflow passes through the condenser 4 first and then through the range hood 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 refrigerant pipes, and a ventilation opening (11) is provided on the side wall of 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. The fan inlet (21) of the range hood (2) is a single-sided inlet. The range hood has a fume inlet (7) and a heat dissipation inlet (8). The condenser (4) is located in the duct between the heat dissipation inlet (8) and the vent (11). In the single-operation mode, the valve plate (6) switches to the first position to close the vent (11), thereby connecting the fume inlet (7) with the fan inlet (21). In the single-air-conditioning mode, the valve plate (6) switches to the second position to open the vent (11), so that the heat dissipation air inlet (8) is connected to the fan air inlet (21) through the vent (11). In the mode where both the range hood and the air conditioner are on, the valve plate (6) switches to the third position to separate the fan air inlet (21) into the first air inlet (211) and the second air inlet (212). The oil fume inlet (7) is connected to the first air inlet (211), and the heat dissipation air inlet (8) is connected to the second air inlet (212) through the vent (11).

2. The refrigerated range hood according to claim 1, characterized in that: When both the range hood and air conditioner are on, the opening angle of the valve plate (6) can be automatically adjusted according to the required air volume of the range hood (2) and the required heat dissipation air volume of the condenser (4).

3. The refrigerated range hood according to claim 2, characterized in that: The valve plate (6) is an electric valve plate (6) and also includes a controller. The controller adjusts the opening angle of the valve plate (6) according to the required air volume of the fume extractor (2) and the required heat dissipation air volume of the condenser (4).

4. 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 single-sided air inlet. When the valve plate (6) is in the third position, the valve plate (6) is tilted relative to the horizontal plane.

5. The refrigerated range hood according to claim 1, characterized in that: The fume extractor (2) is a vertically arranged centrifugal fan. The central axis of the impeller of the centrifugal fan is perpendicular to the front of the fume extractor. Correspondingly, the air inlet (21) of the fan is a front air inlet or a rear air inlet.

6. The refrigerated range hood according to claim 1, characterized in that: The compressor (3) is located in the air duct between the heat dissipation air inlet (8) and the vent (11), and along the air flow direction, the compressor (3) is located upstream of the condenser (4), and the condenser (4) is close to the vent (11).

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

8. The refrigerated range hood according to any one of claims 1 to 7, characterized in that: It also includes an indoor unit fan (9), the indoor unit fan (9) and the evaporator (5) constitute an indoor unit module, the indoor unit module is located above the fan frame (1), the compressor (3) and the condenser (4) constitute a heat dissipation module, the heat dissipation module is located on the left or right side of the fan frame (1).

9. The refrigerated range hood according to claim 8, characterized in that: The indoor unit module has an indoor unit air inlet and an indoor unit air outlet. The indoor unit air inlet is located at the top of the indoor unit module, and the indoor unit air outlet is located at the front of the indoor unit module.

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