Range hood

Abstract

The range hood comprises a refrigeration structure, an exhaust fume collecting hood, an inner shell, a first volute fan and a second volute fan, the refrigeration structure comprises a compressor, a condenser, a throttling valve and an evaporator which are sequentially connected, and the exhaust fume collecting hood is provided with an exhaust fume extraction opening; the inner shell is mounted at the top of the exhaust fume collecting hood and provided with a mounting cavity, a mounting opening is formed in the side wall of the inner shell, a first air outlet and a second air outlet are formed in the upper end of the inner shell, and the condenser is mounted at the mounting opening; the first volute fan is mounted in the mounting cavity; the second volute fan is mounted in the mounting cavity; according to the range hood, the first volute fan, the second volute fan and the condenser are all mounted on the inner shell of the range hood, so that a smoke extraction part, the condenser and a structure for cooling the condenser are all arranged at the same position, the condenser does not need to be arranged outside the range hood, and the overall structural size of the range hood is small.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more particularly to a range hood. Background Technology

[0002] Existing range hoods have both smoke extraction and cooling functions, with the cooling process achieved through a condenser, evaporator, expansion valve, and compressor. However, the condenser is located at the range hood itself, requiring additional piping for heat dissipation, resulting in a relatively complex overall structure. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a range hood.

[0004] The technical solution of the present invention is as follows: it includes a refrigeration structure, a smoke hood, an inner shell, a first volute fan, and a second volute fan. The refrigeration structure includes a compressor, a condenser, a throttling valve, and an evaporator connected in sequence. The smoke hood has a smoke extraction port. The inner shell is installed on the top of the smoke hood and has an installation cavity communicating with the smoke extraction port. The side wall of the inner shell has an installation opening communicating with the installation cavity. The upper end of the inner shell has a first air outlet and a second air outlet communicating with the installation cavity. The condenser is installed at the installation opening. The first volute fan is installed in the installation cavity and can draw gas from the installation cavity to the first air outlet. The second volute fan is installed in the installation cavity and can draw gas from the installation opening to the second air outlet.

[0005] Furthermore, the mounting port is located on the upper right side of the inner shell, the mounting port is a right-opening groove, the left wall of the groove has an outlet, and the condenser is disposed in the groove; The second volute fan is connected to both the outlet and the second air outlet.

[0006] Furthermore, the second volute fan is vertically installed; The second volute fan has a first air inlet on its right side, and the first air inlet is connected to the outlet. The upper side of the second volute fan has a first air outlet, which is connected to the second air outlet.

[0007] Furthermore, the front side of the first volute fan has a second air inlet, which is located inside the mounting cavity; The first volute fan has a second air outlet on its upper side, and the second air outlet is connected to the first air outlet.

[0008] Furthermore, it also includes a housing, both the housing and the compressor are located on top of the smoke collection hood, the inner housing and the compressor are located inside the housing, and the first air outlet and the second air outlet are both connected to the outside of the housing; The right side of the housing has an external communication port, and the compressor is located between the external communication port and the mounting port.

[0009] Furthermore, a first cover for closing the first air outlet is rotatably connected to one side of the first air outlet, and a first elastic element for keeping the first cover closed between the first cover and the inner shell is provided.

[0010] Furthermore, a second cover for closing the second air outlet is rotatably connected to one side of the second air outlet, and a second elastic element for keeping the second cover closed between the second cover and the inner shell.

[0011] Furthermore, a filter screen is provided at the external connection port; the filter screen is detachably installed on the outer casing.

[0012] Furthermore, an exhaust duct is installed on the upper end of the outer casing, and both the first and second exhaust ports are connected to the exhaust duct.

[0013] Furthermore, the smoke extraction port is provided in multiple ways, and the multiple smoke extraction ports are spaced apart in the front-to-back direction.

[0014] The range hood according to the present invention has at least the following technical effects: 1. The first volute fan, the second volute fan, and the condenser are all installed on the inner shell of the range hood. The first volute fan can draw the fumes to the first air outlet, and the second volute fan can draw the gas to cool the condenser. This allows the fume extraction part, the condenser, and the structure for cooling the condenser to be located in the same place, eliminating the need to place the condenser outside the range hood. This results in a smaller overall size of the range hood, reducing the space required and simplifying the overall structure.

[0015] 2. Since the first air inlet of the second volute fan is directly connected to the outlet, and the first air outlet of the second volute fan is directly connected to the second air outlet, no additional piping is required, making the internal structure of the inner shell compact and the range hood smaller in size.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Additional aspects and advantages of the present invention will become apparent and readily understood from the description of the technical solutions taken in conjunction with the following drawings, wherein: Figure 1 This is a structural diagram of a range hood without its outer casing installed. Figure 2 This is a cross-sectional view of a range hood; Figure 3 This is a cross-sectional view of the range hood without its outer casing installed. Figure 4 This is a structural diagram of a range hood; Figure 5 for Figure 2 Enlarged view of point A in the middle; Figure 6 This is a structural diagram of the mounting port; Figure 7 A schematic diagram of a range hood equipped with an exhaust duct.

[0018] Reference numerals: Evaporator 100, Condenser 200, Compressor 300, Smoke hood 400, Cold air outlet 410, Smoke extraction outlet 420, Air outlet duct 500, Inner shell 600, Mounting cavity 610, Mounting port 620, Outlet 621, First air outlet 630, Second air outlet 640, First cover 650, First elastic element 660, Second cover 670, Second elastic element 680, First volute fan 700, Second air inlet 710, Second air outlet 720, Second volute fan 800, First air inlet 810, First air outlet 820, Outer shell 900, External connection port 910, Filter screen 920, Oil fume exhaust duct 930. Detailed Implementation

[0019] The technical solutions of the present invention are described in detail below. Examples of these technical solutions are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The technical solutions described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0021] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0023] Reference Figure 1 , 2 As shown, the range hood provided in the embodiment of the present invention includes a refrigeration structure, a smoke collection hood 400, an inner shell 600, a first volute fan 700, and a second volute fan 800. The refrigeration structure includes an evaporator 100, a condenser 200, and a compressor 300, as shown. Figure 3 As shown, the smoke hood 400 has a cold air outlet 410 and a smoke extraction outlet 420. The cold air outlet 410 is connected to an air outlet duct 500, and the evaporator 100 is located inside the air outlet duct 500; Figure 1 As shown, the inner shell 600 is installed on top of the smoke hood 400, as... Figure 2 As shown, the inner shell 600 has an installation cavity 610 communicating with the smoke extraction port 420. The side wall of the inner shell 600 has an installation opening 620 communicating with the installation cavity 610. The upper end of the inner shell 600 has a first air outlet 630 and a second air outlet 640 communicating with the installation cavity 610. The condenser 200 is installed at the installation opening 620. The first volute fan 700 is installed in the installation cavity 610 and can draw gas from the installation cavity 610 to the first air outlet 630. The second volute fan 800 is installed in the installation cavity 610 and can draw gas from the installation opening 620 to the second air outlet 640.

[0024] The first volute fan 700, the second volute fan 800, and the condenser 200 are all installed on the inner shell 600 of the range hood. The first volute fan 700 can draw oil fumes to the first air outlet 630, and the second volute fan 800 can draw gas to cool the condenser 200. This allows the smoke extraction part, the condenser 200, and the structure for cooling the condenser 200 to be located in the same place, eliminating the need to place the condenser 200 outside the range hood. This results in a smaller overall size of the range hood, reducing the space required and simplifying its overall structure.

[0025] The refrigeration structure also includes a throttling valve. During operation, the first volute fan 700 starts, drawing gas from the mounting cavity 610, causing fumes from outside the fume hood 400 to enter the mounting cavity 610 through the fume extraction port 420. Under the action of the first volute fan 700, the fumes are discharged from the first outlet 630 to the outside of the range hood. Simultaneously, the refrigeration structure and the second volute fan 800 both start, continuously drawing air from outside the range hood into the outlet duct 500, and then expelling it from the cold air inlet 410. When the air passes through the evaporator 100, it cools the air in the air outlet 500, so that the air discharged from the cold air outlet 410 is cold air. The second volute fan 800 draws the air in the installation port 620 to the second air outlet 640, and the air is discharged to the outside of the range hood through the second air outlet 640. During the extraction process, the air cools the condenser 200 (because the condenser 200 will generate heat during operation, the second volute fan 800 is used to cool the condenser 200).

[0026] It is understandable that the first air outlet 630 and the second air outlet 640 are spaced apart at the upper end of the inner shell 600, and each of them independently exhausts gas. The first air outlet 630 is only used to exhaust oil fumes, and the second air outlet 640 is only used to exhaust the gas after the condenser 200 has been cooled. The first volute fan 700 is used to extract oil fumes from the mounting cavity 610 to the first air outlet 630, and then exhaust them to the atmosphere through the first air outlet 630. The second volute fan 800 is used to extract air from the mounting port 620 to cool the condenser 200, and then exhaust it to the atmosphere through the second air outlet 640. The first volute fan 700 and the second volute fan 800 are not connected. The first volute fan 700 will not extract air from the mounting port 620 to the first air outlet 630, and the second volute fan 800 will not extract oil fumes from the mounting cavity 610 to the second air outlet 640.

[0027] Specifically, a fan is installed inside the air outlet duct 500, and the fan continuously draws air from outside the range hood into the air outlet duct 500.

[0028] Furthermore, such as Figure 2 , 6 As shown, the mounting port 620 is located on the upper right side of the inner shell 600. The mounting port 620 is a groove with a right opening. The left wall of the groove has an outlet 621. The condenser 200 is located in the groove. The second volute fan 800 is connected to the outlet 621 and the second air outlet 640 respectively.

[0029] The recessed design facilitates the installation of the condenser 200 and ensures optimal cooling performance.

[0030] During operation, the second volute fan 800 draws gas from the groove to cool the condenser 200, then enters the second volute fan 800 through outlet 621, and is then discharged to the atmosphere through the second outlet 640.

[0031] Furthermore, such as Figure 2 As shown, the second volute fan 800 is vertically installed; The second volute fan 800 has a first air inlet 810 on the right side, and the first air inlet 810 is connected to the outlet 621. The upper side of the second volute fan 800 has a first air outlet 820, which is connected to the second air outlet 640.

[0032] Since the first air inlet 810 of the second volute fan 800 is directly connected to the outlet 621, and the first air outlet 820 of the second volute fan 800 is directly connected to the second air outlet 640, no additional piping design is required, making the internal structure of the inner shell 600 compact and the range hood smaller in size.

[0033] Understandably, because the first air inlet 810 is connected to the outlet 621 and the first air outlet 820 is connected to the second air outlet 640, the first air inlet 810 of the second volute fan 800 is directly connected to the outlet 621 of the groove, and the first air outlet 820 of the second volute fan 800 is directly connected to the second air outlet 640. During operation, the gas in the groove passes through the outlet 621 and the first air inlet 810 in sequence before entering the second volute fan 800, and then passes through the first air outlet 820 and the second air outlet 640 in sequence before being discharged to the atmosphere. Further, as... Figure 3 As shown, the front side of the first volute fan 700 has a second air inlet 710, which is located inside the mounting cavity 610. The upper side of the first volute fan 700 has a second air outlet 720, which is connected to the first air outlet 630.

[0034] Since the second air inlet 710 of the first volute fan 700 is directly located inside the mounting cavity 610, the first volute fan 700 can directly extract the oil fumes inside the mounting cavity 610, resulting in the best oil fume extraction effect. Since the second air outlet 720 of the first volute fan 700 is connected to the first air outlet 630, there is no need for additional ductwork design, making the internal structure of the inner shell 600 compact and the range hood smaller in size.

[0035] Understandably, since the second air inlet 710 is located inside the mounting cavity 610 and the second air outlet 720 is connected to the first air outlet 630, the first volute fan 700 directly draws the oil fumes from the mounting cavity 610 into the first volute fan 700, and the second air outlet 720 of the first volute fan 700 is directly connected to the first air outlet 630. During operation, the first volute fan 700 directly draws the oil fumes from the mounting cavity 610 into the first volute fan 700, and then discharges them to the atmosphere through the second air outlet 720 and the first air outlet 630.

[0036] Furthermore, such as Figure 1 , 2 As shown, it also includes a housing 900, with the housing 900, air outlet duct 500, and compressor 300 all located on top of the smoke hood 400. The inner housing 600 and compressor 300 are both located inside the housing 900. Figure 4 As shown, both the first air outlet 630 and the second air outlet 640 are connected to the outside of the outer casing 900. The right side of the outer casing 900 has an external communication port 910, such as... Figure 2 As shown, the compressor 300 is located between the external connection port 910 and the mounting port 620, and a filter screen 920 is provided at the external connection port 910.

[0037] Since the compressor 300 is located between the first external communication hole and the mounting port 620, the second volute fan 800 can simultaneously cool the compressor 300 and the condenser 200 by drawing air.

[0038] When the second volute fan 800 is in operation, the outside air enters the outer casing 900 through the external connection port 910, then passes through the compressor 300 and condenser 200 in sequence before entering the installation port 620, and then enters the second volute fan 800 through the outlet 621 and the first air inlet 810, and is then discharged to the outside of the range hood through the first air outlet 820 and the second air outlet 640.

[0039] Furthermore, such as Figure 5 As shown, a first cover 650 for closing the first air outlet 630 is rotatably connected to one side of the first air outlet 630. A first elastic member 660 for keeping the first cover 650 closed is provided between the first cover 650 and the inner shell 600. A second cover 670 for closing the second air outlet 640 is rotatably connected to one side of the second air outlet 640. A second elastic member 680 for keeping the second cover 670 closed is provided between the second cover 670 and the inner shell 600.

[0040] By providing a first cover 650 and a first elastic element 660, when the first volute fan 700 is not started, the first cover 650 remains closed to the first air outlet 630 under the action of the first elastic element 660, thus preventing external materials from entering the first volute fan 700. When the first volute fan 700 is started, the first cover 650 overcomes the elasticity of the first elastic element 660 under the action of the wind, and opens the first air outlet 630. By providing a second cover 670 and a second elastic element 680, when the second volute fan 800 is not started, the second cover 670 remains closed to the second air outlet 640 under the action of the second elastic element 680, thus preventing external materials from entering the second volute fan 800. When the second volute fan 800 is started, the second cover 670 overcomes the elasticity of the second elastic element 680 under the action of the wind, and opens the second air outlet 640.

[0041] Furthermore, the filter 920 is detachably mounted on the housing 900, and when the filter 920 becomes clogged, the user can remove the filter 920 for replacement or cleaning.

[0042] Furthermore, such as Figure 3 As shown, multiple smoke extraction ports 420 are provided, and these multiple smoke extraction ports 420 are spaced apart in the front-to-back direction. By providing multiple smoke extraction ports 420, the smoke extraction effect is improved.

[0043] Furthermore, such as Figure 7 As shown, an exhaust duct 930 is installed on the upper end of the outer casing 900. The first air outlet 630 and the second air outlet 640 are both connected to the exhaust duct 930, so that the gas drawn by the first volute fan 700 and the gas drawn by the second volute fan 800 are collected at the exhaust duct 930 and then discharged to the atmosphere through the exhaust duct 930, thus eliminating the need for multiple exhaust ducts.

[0044] Although the technical solutions of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these technical solutions without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood, comprising a refrigeration structure, said refrigeration structure comprising a compressor, a condenser, a throttling valve, and an evaporator connected in sequence, characterized in that, Also includes: Smoke hood with smoke extraction port; An inner shell is installed on the top of the smoke collection hood. The inner shell has a mounting cavity communicating with the smoke extraction port. The side wall of the inner shell has a mounting port communicating with the mounting cavity. The upper end of the inner shell has a first air outlet and a second air outlet communicating with the mounting cavity. The condenser is installed at the mounting port. A first volute fan is installed inside the mounting cavity, and the first volute fan can draw gas from the mounting cavity to the first air outlet. The second volute fan is installed inside the mounting cavity, and the second volute fan can draw gas from the mounting port to the second air outlet.

2. The range hood according to claim 1, characterized in that: The mounting port is located on the upper right side of the inner shell. The mounting port is a right-opening groove, and the left wall of the groove has an outlet. The condenser is disposed in the groove. The second volute fan is connected to both the outlet and the second air outlet.

3. The range hood according to claim 2, characterized in that: The second volute fan is vertically installed; The second volute fan has a first air inlet on its right side, and the first air inlet is connected to the outlet. The upper side of the second volute fan has a first air outlet, which is connected to the second air outlet.

4. The range hood according to claim 1, characterized in that: The first volute fan has a second air inlet on its front side, and the second air inlet is located inside the mounting cavity; The first volute fan has a second air outlet on its upper side, and the second air outlet is connected to the first air outlet.

5. The range hood according to claim 1, characterized in that: It also includes a housing, and the housing and the compressor are both located on top of the smoke collection hood. The inner housing and the compressor are both located inside the housing, and the first air outlet and the second air outlet are both connected to the outside of the housing. The right side of the housing has an external communication port, and the compressor is located between the external communication port and the mounting port.

6. The range hood according to claim 1, characterized in that: A first cover for closing the first air outlet is rotatably connected to one side of the first air outlet, and a first elastic element for keeping the first cover closed between the first cover and the inner shell.

7. The range hood according to claim 1, characterized in that: A second cover for closing the second air outlet is rotatably connected to one side of the second air outlet, and a second elastic element for keeping the second cover closed between the second cover and the inner shell.

8. The range hood according to claim 5, characterized in that: A filter screen is provided at the external connection port; the filter screen is detachably installed on the outer casing.

9. The range hood according to claim 5, characterized in that: An exhaust duct is installed on the upper end of the outer casing, and both the first and second air outlets are connected to the exhaust duct.

10. The range hood according to claim 1, characterized in that: The smoke extraction port is provided in multiple ways, and the multiple smoke extraction ports are spaced apart in the front-to-back direction.

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