Energy-saving suction-assisting range hood

Abstract

The utility model discloses an energy-saving suction-assisting range hood which comprises a first shell, the first shell is of a table-shaped structure, a second shell is arranged at the top of the first shell, the second shell is of an annular structure, a first air draft assembly is arranged in the second shell, a second air draft assembly is arranged at the top of the first air draft assembly, and the first air draft assembly comprises a pipeline. The pipeline is installed in the second shell, a connecting frame is arranged on the side face of the pipeline, the connecting frame is connected with the second shell, according to the prior art and the principle of a Laval pipe, a plurality of arc-shaped faces are arranged on the pipeline, the arc-shaped faces are sequentially contracted and expanded from bottom to top, and a plurality of sliding grooves are formed in the side face in the pipeline. According to the utility model, the pipeline is designed to be in the shape of the Laval pipe and passes through a plurality of contracted and expanded arc-shaped surfaces, so that the air velocity is increased, the oil smoke can be conveniently sucked by the range hood, and the power consumption of the range hood can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to an energy-saving and suction-aiding range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly remove the waste from stove combustion and the oil smoke generated during cooking that is harmful to the human body and discharge it outdoors. At the same time, it condenses and collects the oil smoke to reduce pollution, purify the air, and has anti-toxic and explosion-proof safety protection functions. The range hood uses a motor to exhaust the entire device. The power of the motor determines the oil suction effect of the entire range hood. When the motor of the current range hood is exhausting, the motor power may not be enough to exhaust, or the motor may be used at high power for a long time, resulting in a reduction in the service life of the motor. In this regard, an energy-saving and suction-assisted range hood is proposed, which can reduce the power consumption of the range hood and improve the suction effect.

[0003] After searching, a Chinese patent application number 202122338709.0 discloses a range hood. The range hood includes a shell, a volute, an air duct and a fan. The shell is provided with a shell air inlet and a shell air outlet. The volute is arranged in the shell, and the volute is provided with a volute air inlet and a volute air outlet. The volute air outlet is connected with the shell air outlet. The air duct is arranged in the shell, one end of the air duct is connected with the volute air inlet, and the end of the air duct away from the volute is connected with the shell air inlet. The fan is arranged in the volute. The range hood device in the above-mentioned document has the following shortcomings: by setting multiple air inlets, the conversion power of the motor may be reduced, the power consumption of the device may be increased in order to increase the suction force, and the service life of the motor may be reduced. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an energy-saving and suction-assisted range hood.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An energy-saving and suction-assisted range hood comprises a first shell, the first shell is a table-shaped structure, a second shell is arranged on the top of the first shell, the second shell is an annular structure, a first exhaust assembly is arranged in the second shell, a second exhaust assembly is arranged on the top of the first exhaust assembly, and the first exhaust assembly comprises:

[0007] The pipeline is installed in the shell 2, and a connecting frame is arranged on the side of the pipeline, and the connecting frame is connected to the shell 2. According to the prior art and the principle of Laval tube, a plurality of arc surfaces are arranged on the pipeline, which are arc surfaces of contraction and expansion from the bottom to the top, and a plurality of slide grooves are arranged on the inner side of the pipeline.

[0008] As a further solution of the utility model: the first exhaust assembly also includes:

[0009] The oil fume air inlet is a hemispherical structure, a protruding structure is arranged on the top of the oil fume air inlet, a fixing groove is arranged on the bottom of the pipe, the oil fume air inlet is rotatably connected to the pipe through the protruding structure, a threaded hole is arranged on the bottom of the oil fume air inlet, and a plurality of air inlet holes are arranged on the spherical surface of the oil fume air inlet.

[0010] As a further solution of the utility model: the first exhaust assembly also includes:

[0011] The collecting box 2 is provided with an annular columnar structure on the top, and the side of the columnar structure is provided with threaded teeth. The collecting box 2 is installed at the bottom of the oil fume air inlet through the threaded connection.

[0012] As a further solution of the utility model: the first exhaust assembly also includes:

[0013] Bracket 1, the bracket 1 is installed on the top of the pipeline, and the bracket 1 is a cross-shaped structure;

[0014] Motor 1, wherein the motor 1 is installed at the bottom of the bracket 1, and the motor 1 is electrically connected to the control module;

[0015] A rotating rod, the rotating rod being mounted at an output end of the motor 1;

[0016] The fan blades are provided in a plurality, the fan blades are mounted on the rotating rod through a connecting piece, and the fan blades are arranged at the expansion position of the pipeline.

[0017] As a further solution of the utility model: the second exhaust assembly includes:

[0018] Shell three, the shell three is installed on the top of shell two;

[0019] Bracket 2, the bracket 2 is installed on one side of the housing 3, and a slope is provided on the bracket 2;

[0020] Motor 2 is installed on the inclined surface of bracket 2, and motor 2 is electrically connected to the control module.

[0021] As a further solution of the utility model: the second exhaust assembly also includes:

[0022] A volute, the volute is installed inside the outer shell three, a mounting hole is provided on one side of the volute, and the output end of the motor two is located in the mounting hole of the volute;

[0023] An impeller, the impeller is mounted at the output end of the second motor, and the impeller is located in the volute;

[0024] The exhaust port is installed at the top of the volute, and the exhaust port extends to the top of the outer shell three.

[0025] As a further solution of the utility model: the range hood further includes:

[0026] An oil inlet groove, the oil inlet groove is installed on the top of the bracket 1, and the top of the oil inlet groove is aligned with the lower outlet of the volute;

[0027] A sewage pipe, the sewage pipe is installed on the inner wall of one side of the shell 2 and the shell 1;

[0028] A collecting box 1 is installed at the bottom of the shell 1 through a detachable connecting piece, and a sewage discharge pipe is connected to the collecting box 1.

[0029] The beneficial effects of the utility model are:

[0030] By designing the pipeline into the shape of a Laval tube and passing through a number of contracting and expanding arc surfaces, the air flow rate is increased, which makes it easier for the range hood to suck in oil smoke, thereby reducing the power consumption of the range hood.

[0031] The fan blades are driven by motor 1 to rotate at high speed in the pipe, forming negative pressure at the bottom of the range hood, sucking the oil smoke into the device, and large particles of oil and water are blocked by the oil smoke air inlet and flow into the collection box 2. Fine moisture and oil smoke enter the pipe and are stirred by the fan blades in the pipe, so that part of the oil and water are thrown onto the pipe, flow in the sliding groove of the pipe, and enter the collection box 2.

[0032] The impeller is driven by motor 2 to extract the oil smoke in the pipe. The oil smoke is thrown in the impeller, the oil stains are thrown onto the volute, and the smoke is discharged from the exhaust port.

[0033] When the range hood stops running, the oil stains flow down from the volute and into the collection box. The oil stains can be cleaned by removing the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural schematic diagram of an energy-saving and suction-assisted range hood proposed by the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the bottom of an energy-saving and suction-assisted range hood proposed by the utility model;

[0036] Figure 3 This is a schematic structural diagram of a cross section of a first exhaust assembly of an energy-saving and suction-assisted range hood proposed by the utility model;

[0037] Figure 4 The utility model provides a schematic structural diagram of the cross section of an energy-saving and suction-assisted range hood.

[0038] In the figure: 1-housing 1, 2-collecting box 1, 3-housing 2, 4-housing 3, 5-drain pipe, 6-collecting box 2, 7-oil fume air inlet, 8-motor 1, 9-rotating rod, 10-fan blade, 11-pipeline, 12-bracket 1, 13-oil inlet tank, 14-bracket 2, 15-motor 2, 16-impeller, 17-volute, 18-exhaust outlet. DETAILED DESCRIPTION

[0039] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] An energy-saving and suction-assisting range hood, such as Figure 1 , Figure 3 As shown, it includes: a shell 1, the shell 1 is a table-shaped structure, a shell 2 3 is arranged on the top of the shell 1, the shell 2 3 is a ring structure, a first exhaust component is arranged in the shell 2 3, and a second exhaust component is arranged on the top of the first exhaust component, and the first exhaust component includes:

[0042] The pipe 11 is installed in the shell 2 3, and a connecting frame is provided on the side of the pipe 11, and the connecting frame is connected to the shell 2 3. According to the prior art and the principle of Laval tube, a plurality of arc surfaces are provided on the pipe 11, which are arc surfaces of contraction and expansion from the bottom to the top, and a plurality of slide grooves are provided on the inner side of the pipe 11.

[0043] By designing the pipe 11 into the shape of a Laval tube, the air flow rate is increased through a plurality of contracting and expanding arc surfaces, which facilitates the range hood to inhale oil smoke, thereby reducing the power consumption of the range hood.

[0044] like Figure 2 , Figure 3 As shown, the first exhaust assembly also includes:

[0045] The oil fume air inlet 7 is a hemispherical structure, a protruding structure is arranged on the top of the oil fume air inlet 7, a fixing groove is arranged on the bottom of the pipe 11, the oil fume air inlet 7 is rotatably connected to the pipe 11 through the protruding structure, a threaded hole is arranged on the bottom of the oil fume air inlet 7, and a plurality of air inlet holes are arranged on the spherical surface of the oil fume air inlet 7.

[0046] like Figure 1 , Figure 3As shown, the first exhaust assembly also includes:

[0047] The second collecting box 6 has an annular columnar structure on its top and a threaded tooth on the side of the columnar structure. The second collecting box 6 is installed at the bottom of the oil smoke air inlet 7 through threads.

[0048] like Figure 3 As shown, the first exhaust assembly also includes:

[0049] A bracket 12, wherein the bracket 12 is installed on the top of the pipe 11, and the bracket 12 is a cross-shaped structure;

[0050] A motor 8, wherein the motor 8 is mounted at the bottom of the bracket 12, and the motor 8 is electrically connected to the control module;

[0051] A rotating rod 9, wherein the rotating rod 9 is mounted at the output end of the motor 1 8;

[0052] The fan blades 10 are provided in plurality and are mounted on the rotating rod 9 via a connecting piece. The fan blades 10 are arranged at the expansion position of the pipe 11 .

[0053] The fan blades 10 are driven by the motor 8 to rotate at a high speed in the pipe 11, so that negative pressure is formed at the bottom of the range hood, and the oil smoke is sucked into the device. Large particles of oil and water are blocked by the oil smoke air inlet 7 and flow into the collection box 2 6. Fine moisture and oil smoke enter the pipe 11 and are stirred by the fan blades 10 in the pipe 11, so that part of the oil and water are thrown onto the pipe 11, flow in the sliding groove of the pipe 11, and enter the collection box 2 6.

[0054] like Figure 4 As shown, the second exhaust assembly includes:

[0055] Shell three 4, the shell three 4 is installed on the top of the shell two 3;

[0056] A second bracket 14, wherein the second bracket 14 is mounted on one side of the housing 3 4, and a slope is provided on the second bracket 14;

[0057] The second motor 15 is installed on the inclined surface of the second bracket 14, and the second motor 15 is electrically connected to the control module.

[0058] like Figure 4 As shown, the second exhaust assembly also includes:

[0059] A volute 17, wherein the volute 17 is installed inside the outer shell 3 4, a mounting hole is provided on one side of the volute 17, and an output end of the motor 2 15 is located in the mounting hole of the volute 17;

[0060] An impeller 16, wherein the impeller 16 is mounted at the output end of the motor 2 15, and the impeller 16 is located in the volute 17;

[0061] The exhaust port 18 is installed at the top of the volute 17, and the exhaust port extends to the top of the outer shell 3 4.

[0062] The impeller 16 is driven by the motor 15 to extract the oil smoke in the pipe 11. The oil smoke is thrown in the impeller 16, the oil stains are thrown onto the volute 17, and the smoke is discharged from the exhaust port 18.

[0063] In order to remove the oil stains from the second exhaust assembly, Figure 1 , Figure 4 As shown, the range hood further comprises:

[0064] An oil inlet groove 13, wherein the oil inlet groove 13 is mounted on the top of the bracket 12, and the top of the oil inlet groove 13 is aligned with the lower outlet of the volute 17;

[0065] A sewage pipe 5, wherein the sewage pipe 5 is installed on the inner wall of one side of the housing 2 3 and the housing 1 1;

[0066] A collecting box 2 is installed at the bottom of the outer shell 1 through a detachable connecting piece, and a sewage pipe 5 is connected to the collecting box 2.

[0067] When the range hood stops running, the oil stains flow down from the volute 17 and enter the collection box 2. The collection box 2 can be removed to clean the oil stains.

[0068] Working principle: when oil suction and ventilation are required, the control module starts motor 1 8 and motor 2 15, the oil smoke is first filtered at the oil smoke air inlet 7, then enters the first exhaust component for oil suction treatment, and then enters the second exhaust component for oil suction treatment. After three filtering treatments, the oil can be effectively absorbed, and through the pipe 11, a greater suction force can be generated on the bottom of the range hood, thereby reducing the power consumption of the entire device.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy-saving and suction-assisted range hood, comprising a housing 1, characterized in that: The housing 1 is a table-shaped structure, a housing 2 (3) is arranged on the top of the housing 1, the housing 2 (3) is an annular structure, a first exhaust assembly is arranged inside the housing 2 (3), a second exhaust assembly is arranged on the top of the first exhaust assembly, and the first exhaust assembly includes: A pipe (11), the pipe (11) being installed in the second housing (3), a connecting frame being provided on the side of the pipe (11), the connecting frame being connected to the second housing (3), according to the prior art and the principle of the Laval tube, a plurality of arcuate surfaces being provided on the top of the pipe (11), which are arcuate surfaces that contract and expand in sequence from the bottom upward, and a plurality of slide grooves being provided on the inner side of the pipe (11).

2. The energy-saving and suction-aiding range hood according to claim 1, characterized in that: The first exhaust assembly also includes: The oil fume air inlet (7) is a hemispherical structure, a protruding structure is provided at the top of the oil fume air inlet (7), a fixing groove is provided at the bottom of the pipe (11), the oil fume air inlet (7) is rotatably connected to the pipe (11) via the protruding structure, a threaded hole is provided at the bottom of the oil fume air inlet (7), and a plurality of air inlet holes are provided on the spherical surface of the oil fume air inlet (7).

3. The energy-saving and suction-aiding range hood according to claim 2, characterized in that: The first exhaust assembly also includes: The second collecting box (6) has an annular columnar structure on its top and a threaded tooth on the side of the columnar structure. The second collecting box (6) is installed at the bottom of the oil smoke air inlet (7) through the threaded hole.

4. The energy-saving and suction-aiding range hood according to claim 3, characterized in that: The first exhaust assembly also includes: Bracket one (12), the bracket one (12) being installed on the top of the pipe (11), and the bracket one (12) being a cross-shaped structure; Motor 1 (8), wherein the motor 1 (8) is mounted at the bottom of the bracket 1 (12), and the motor 1 (8) is electrically connected to the control module; A rotating rod (9), wherein the rotating rod (9) is mounted at an output end of the motor 1 (8); A plurality of fan blades (10) are provided, the fan blades (10) are mounted on the rotating rod (9) via a connecting piece, and the fan blades (10) are arranged at an expanded position of the pipe (11).

5. The energy-saving and suction-aiding range hood according to claim 4, characterized in that: The second exhaust assembly comprises: Shell three (4), the shell three (4) is installed on the top of shell two (3); Bracket 2 (14), wherein bracket 2 (14) is mounted on one side of housing 3 (4), and bracket 2 (14) is provided with an inclined surface; Motor 2 (15), wherein the motor 2 (15) is mounted on the inclined surface of the bracket 2 (14), and the motor 2 (15) is electrically connected to the control module.

6. The energy-saving and suction-aiding range hood according to claim 5, characterized in that: The second exhaust assembly also includes: A volute (17), the volute (17) being mounted inside the outer shell (4), a mounting hole being provided on one side of the volute (17), and an output end of the motor (15) being located in the mounting hole of the volute (17); An impeller (16), the impeller (16) being mounted at the output end of the second motor (15), and the impeller (16) being located in the volute (17); An exhaust port (18) is installed at the top of the volute (17), and the exhaust port extends to the top of the outer shell three (4).

7. The energy-saving and suction-aiding range hood according to claim 6, characterized in that: The range hood further comprises: An oil inlet groove (13), the oil inlet groove (13) being mounted on the top of the bracket (12), the top of the oil inlet groove (13) being aligned with the lower outlet of the volute (17); A sewage discharge pipe (5), the sewage discharge pipe (5) being installed on the inner wall of one side of the second housing (3) and the first housing (1); A collecting box (2) is installed at the bottom of the housing (1) via a detachable connecting piece, and a sewage discharge pipe (5) is connected to the collecting box (2).

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