Air cabinet and range hood

Abstract

The utility model provides an air cabinet and a range hood, and belongs to the technical field of kitchen equipment. The air cabinet comprises an air cabinet body and a flow guide part, a cavity is defined by the air cabinet body, a first air inlet, a second air inlet and an air outlet are formed in the air cabinet body, the flow guide part is installed at the lower end of the air cabinet body, and the shape of the flow guide part is matched with that of the air cabinet body; the flow guide part is provided with a first air guide face used for guiding part of inlet air to the first air inlet and a second air guide face used for guiding part of inlet air to the second air inlet, and the width between the upper ends of the first air guide face and the second air guide face is equal to the width between the first air guide face and the second air guide face. An included angle is formed between the lower end of the first air guide face and the lower end of the second air guide face.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a wind cabinet and a range hood. Background Art

[0002] With the popularity of high-rise residential buildings, the resistance of pipelines on lower floors is getting bigger and bigger, and consumers have higher and higher requirements for the oil fume removal effect of range hoods. Various manufacturers widely use DC motors instead of traditional AC motors to greatly increase the fan speed to overcome the resistance of the flue network. The noise problem caused by this is becoming more and more prominent. Therefore, consumers need products that meet the needs of large air volume and high static pressure, with lower operating noise and more acceptable sound quality. How to further increase the fan pressure head and reduce noise with the same fan size has become the focus of research for manufacturers.

[0003] At present, there is a split ceiling range hood, which has a box with a wind cabinet installed on the kitchen ceiling, and the air outlet of the wind cabinet is discharged horizontally, so that the noise source is far away from the user, achieving the purpose of noise reduction. However, the wind cabinet is installed horizontally, and the centrifugal fan in the wind cabinet takes in air from the bottom. The vertical airflow from the smoke pipe of the range hood box needs to flow around from both sides to enter the air inlets on both sides, and a vortex area will be formed on the bottom of the fan, which will cause the noise to increase. Utility Model Content

[0004] The utility model aims to provide a wind cabinet, which can realize airflow guidance, avoid the formation of eddy currents at the bottom of the wind cabinet body, and reduce noise.

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

[0006] According to one aspect of the utility model, a wind cabinet is provided, comprising a wind cabinet body and a guide portion, the wind cabinet body is surrounded by a cavity, the wind cabinet body is provided with a first air inlet, a second air inlet and an air outlet, the guide portion is installed at the lower end of the wind cabinet body, the shape of the guide portion is adapted to the shape of the wind cabinet body, the guide portion is provided with a first air guide surface for guiding part of the incoming air to the first air inlet and a second air guide surface for guiding part of the incoming air to the second air inlet, the width between the upper ends of the first air guide surface and the second air guide surface is equal to the width between the first and second ends of the wind cabinet body, and an angle is formed between the lower end of the first air guide surface and the lower end of the second air guide surface.

[0007] According to an embodiment of the utility model, micro holes for sound absorption are distributed on the surface of the guide part.

[0008] According to one embodiment of the utility model, the guide part is sound-absorbing cotton.

[0009] According to an embodiment of the present utility model, the first air inlet is a main air inlet, and the included angle is located between the midline of the first air inlet and the second air inlet and is biased towards the midline of the second air inlet.

[0010] According to one embodiment of the utility model, the wind cabinet body is a volute type wind cabinet.

[0011] According to an embodiment of the utility model, the first air guiding surface and the second air guiding surface are arc-shaped along the circumference of the wind cabinet body.

[0012] According to one embodiment of the utility model, an oil cup is also included, a first oil leakage hole is opened at the lower end of the wind cabinet body, a second oil leakage hole is opened at the guide part corresponding to the first oil leakage hole, and the oil cup is fixedly connected to the lower end of the guide part corresponding to the second oil leakage hole.

[0013] According to an embodiment of the utility model, a groove is formed at the lower end of the guide portion corresponding to the second oil leakage hole, and the oil cup is located in the groove.

[0014] According to one embodiment of the utility model, first mounting holes are provided on both sides of the bottom of the wind cabinet body, second mounting holes are provided at both ends of the air guide portion corresponding to the first mounting holes, and the air guide portion is fixed to the bottom of the wind cabinet body by screws or rivets.

[0015] According to a second aspect of the utility model, a range hood is provided, comprising the above-mentioned wind cabinet.

[0016] The air outlet is oriented horizontally or vertically.

[0017] An embodiment of the present invention has the following advantages or beneficial effects:

[0018] The utility model discloses a wind cabinet, which comprises a wind cabinet body and a guide part, wherein the wind cabinet body is surrounded by a cavity, and the wind cabinet body is provided with a first air inlet, a second air inlet and an air outlet, and the guide part is installed at the lower end of the wind cabinet body, and the shape of the guide part is adapted to the shape of the wind cabinet body, and the guide part is provided with a first air guide surface for guiding part of the incoming air to the first air inlet and a second air guide surface for guiding part of the incoming air to the second air inlet, the width between the upper ends of the first air guide surface and the second air guide surface is equal to the width between the first and second ends of the wind cabinet body, and an angle is provided between the lower ends of the first air guide surface and the second air guide surface, and the angle has the function of diverting the incoming air into the first side incoming air and the second side incoming air, and the first side incoming air is sucked into the wind cabinet body along the first air guide surface and through the first air inlet, so as to realize airflow diversion, avoid the formation of vortex at the bottom of the wind cabinet body, and realize the reduction of noise and the improvement of exhaust efficiency. The air entering from the second side is sucked into the wind cabinet body along the second air guide surface and through the second air inlet, thereby achieving air flow guidance and avoiding the formation of vortices on the first side of the bottom of the wind cabinet body, thereby reducing noise and improving exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0020] Figure 1 is a front view of a wind cabinet according to an exemplary embodiment.

[0021] Figure 2 is a perspective view of a wind cabinet according to an exemplary embodiment.

[0022] Figure 3 is a side view of a wind cabinet according to an exemplary embodiment.

[0023] Figure 4 Schematic diagram showing the relationship between the inclination angle α1 and the inclination angle α2 of the guide portion according to an exemplary embodiment.

[0024] Figure 5 is a schematic diagram showing the relationship among the wrap angles θ, θ1 and θ2 according to an exemplary embodiment.

[0025] Figure 6 is a perspective view of a flow guide portion according to an exemplary embodiment.

[0026] Figure 7 is a cross-sectional view of a range hood according to an exemplary embodiment.

[0027] The reference numerals are described as follows:

[0028] 1. Wind cabinet body; 11. First air inlet; 12. Second air inlet; 13. Air outlet; 2. Air guide portion; 21. First air guide surface; 22. Second air guide surface; 23. Angle; 24. Second oil leakage hole; 25. Groove; 26. Installation step; 3. Oil cup. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0030] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0031] like Figure 1-6 As shown, a wind cabinet according to an embodiment of the utility model comprises a wind cabinet body 1 and a guide portion 2. The wind cabinet body 1 is surrounded by a cavity in which a centrifugal fan is installed. The wind cabinet body 1 is provided with a first air inlet 11, a second air inlet 12 and an air outlet 13.

[0032] The first air inlet 11 and the second air inlet 12 are coaxial and oriented in a horizontal direction, and the air outlet 13 is oriented in a vertical or horizontal direction.

[0033] The air guide part 2 is installed at the lower end of the wind cabinet body 1 , and the shape of the air guide part 2 is adapted to the shape of the wind cabinet body 1 .

[0034] The air guide portion 2 is provided with a first air guide surface 21 for guiding part of the incoming air to the first air inlet 11 and a second air guide surface 22 for guiding part of the incoming air to the second air inlet 12 .

[0035] The width between the upper ends of the first air guide surface 21 and the second air guide surface 22 is equal to the width between the first and second ends of the wind cabinet body 1, and there is an angle 23 between the lower end of the first air guide surface 21 and the lower end of the second air guide surface 22, and the angle 23 has the function of splitting the incoming air into the first side incoming air and the second side incoming air.

[0036] The first side air intake is sucked into the wind cabinet body 1 along the first air guide surface 21 and through the first air inlet 11, thereby achieving air flow guidance and avoiding the formation of vortices at the bottom of the wind cabinet body 1, thereby reducing noise and improving exhaust efficiency.

[0037] The second side air intake is sucked into the wind cabinet body 1 along the second air guide surface 22 and through the second air inlet 12, thereby achieving air flow guidance and avoiding the formation of vortices on the first side of the bottom of the wind cabinet body 1, thereby reducing noise and improving exhaust efficiency.

[0038] The airflow entering through the first air inlet 11 and the second air inlet 12 is finally discharged through the air outlet 13 .

[0039] In a preferred embodiment of the present invention, micro holes for sound absorption are distributed on the surface of the air guide portion 2 to reduce wind noise.

[0040] In a preferred embodiment of the present invention, the guide part 2 is made of sound-absorbing cotton, which has the effects of good sound absorption effect, firmness, easy processing, high plasticity and low purchase cost.

[0041] Of course, the material of the guide part 2 is not limited to sound-absorbing cotton, and those skilled in the art can select other sound-absorbing and noise-reducing materials according to actual needs.

[0042] In a preferred embodiment of the present invention, the first air inlet 11 is a main air inlet, the second air inlet 12 is an auxiliary air inlet, and a mounting frame for mounting a fan is provided at the position of the second air inlet 12 .

[0043] like Figure 3-4 As shown, the angle 23 is located between the first air inlet 11 and the second air inlet 12, and the midline CL is biased toward the second air inlet 12, so that the angle 23 diverts most of the incoming air to the first air guide surface 21 and the first air inlet 11, thereby achieving reasonable distribution of the intake air volume.

[0044] like Figure 5 As shown, the guide portion 2 and the axis of the annular impeller of the fan are in a fan-shaped structure, with a total wrap angle of θ, a left wrap angle of θ1, and a right wrap angle of θ2, and the left wrap angle θ1> the right wrap angle θ2.

[0045] like Figure 4 As shown, the first air guide surface 21 and the second air guide surface 22 are V-shaped asymmetric structures, with a total angle of α, a left inclination angle α1, a right inclination angle α2, and α1>α2. This asymmetric structure allows more airflow to enter the main air intake side, making the air intake distribution more reasonable and improving the fan performance.

[0046] like Figure 1 As shown, in a preferred embodiment of the present utility model, the wind cabinet body 1 is a volute-type wind cabinet, and the air outlet 13 extends in a tangential direction of the wind cabinet body 1 .

[0047] like Figure 1 , 6 As shown, the first air guiding surface 21 and the second air guiding surface 22 are arc-shaped along the circumference of the wind cabinet body 1, so that the first air guiding surface 21 and the second air guiding surface 22 can guide the air entering directly below and on both sides of the wind cabinet body 1.

[0048] The air guide part 2 also has a top surface, the shape of which is adapted to and closely abuts against the wind cabinet body 1, the top surface, the first air guide surface 21 and the second air guide surface 22 are all triangular, and the top surface of the air guide part 2 is an inner arc surface, which is adapted to and closely abuts against the curvature of the wind cabinet body 1. The outer arc surface of the air guide part 2 includes the first air guide surface 21 and the second air guide surface 22.

[0049] like Figure 1 , 2As shown in , 6, in a preferred embodiment of the utility model, it also includes an oil cup 3, a first oil leakage hole is opened at the lower end of the wind cabinet body 1, a second oil leakage hole 24 is opened at the guide part 2 corresponding to the first oil leakage hole, the oil cup 3 is fixedly connected to the lower end of the guide part 2 corresponding to the second oil leakage hole 24, and the opening of the oil cup 3 faces upward and corresponds to the second oil leakage hole 24.

[0050] The oil in the wind cabinet body 1 drips into the oil cup 3 through the first oil leakage hole and the second oil leakage hole 24, so that the cleaning effect is achieved.

[0051] like Figure 1 , 2 As shown in , 6 , in a preferred embodiment of the present utility model, a groove 25 is provided at the lower end of the guide portion 2 corresponding to the second oil leakage hole 24 , and the oil cup 3 is located in the groove 25 .

[0052] like Figure 1 As shown, with the groove 25 as the center line, the two sides of the guide portion 2 are in the shape of two arc-shaped wings.

[0053] The cross-section of the oil cup 3 gradually decreases from the second air guide surface 22 toward the first air guide surface 21 to improve the air intake efficiency of the first air inlet.

[0054] According to one embodiment of the utility model, first mounting holes are provided on both sides of the bottom of the wind cabinet body 1, second mounting holes are provided at both ends of the air guide part 2 corresponding to the first mounting holes, and the air guide part 2 is fixed to the bottom of the wind cabinet body by screws or rivets.

[0055] like Figure 1 , 6 As shown, mounting steps 26 are provided at both ends of the air guide part 2 , the second mounting hole is located on the mounting steps 26 , and the thickness of the mounting steps 26 is smaller than the thickness of the main body of the air guide part 2 .

[0056] like Figure 7 As shown, the utility model also provides a range hood, comprising a housing, a smoke hood, a fan and the above-mentioned wind cabinet. The fan is arranged in the wind cabinet, the wind cabinet is installed in the housing, the housing is provided with an air outlet hole corresponding to the air outlet 12, and the housing is provided with an air outlet seat for connecting with a smoke exhaust pipe corresponding to the air outlet hole.

[0057] The range hood of the utility model achieves the effects of improving exhaust efficiency and reducing noise by adopting the wind cabinet mentioned above.

[0058] In a preferred embodiment of the present invention, the air outlet 12 is oriented horizontally or vertically.

[0059] For example, when the range hood is in the upward exhaust mode, the air outlet 12 faces upward.

[0060] For example, when the range hood is for side exhaust, the air outlet 12 is oriented in a horizontal direction.

[0061] In a preferred embodiment of the present invention, the first air inlet 11 is located at the front side of the range hood, and the second air inlet 12 is located at the rear side of the range hood. Alternatively, the first air inlet 11 is located at the left side of the range hood, and the second air inlet 12 is located at the right side of the range hood.

[0062] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0063] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0064] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind cabinet, characterized in that: include: The wind cabinet body (1) is provided with a cavity, and the wind cabinet body (1) is provided with a first air inlet (11), a second air inlet (12) and an air outlet (13). A guide portion (2) is mounted on the bottom of the wind cabinet body (1); the shape of the guide portion (2) is adapted to the shape of the wind cabinet body (1); the guide portion (2) is provided with a first guide surface (21) for guiding part of the incoming air to the first air inlet (11) and a second guide surface (22) for guiding part of the incoming air to the second air inlet (12); an angle (23) is formed between the lower end of the first guide surface (21) and the lower end of the second guide surface (22).

2. The wind cabinet according to claim 1, characterized in that: Micropores for sound absorption are distributed on the surface of the flow guide (2).

3. The wind cabinet according to claim 2, characterized in that: The flow guide (2) is sound-absorbing cotton.

4. The wind cabinet according to claim 1, characterized in that: The first air inlet (11) is a main air inlet, and the angle (23) is located at a position where the midline between the first air inlet (11) and the second air inlet (12) is biased towards the second air inlet (12).

5. The wind cabinet according to claim 1, characterized in that: The wind cabinet body (1) is a volute-type wind cabinet.

6. The wind cabinet according to claim 1, characterized in that: The first air guide surface (21) and the second air guide surface (22) are arc-shaped along the circumference of the wind cabinet body (1).

7. The wind cabinet according to claim 1, characterized in that: It also includes an oil cup (3), a first oil leakage hole is provided at the lower end of the wind cabinet body (1), a second oil leakage hole (24) is provided on the guide portion (2) corresponding to the first oil leakage hole, and the oil cup (3) is fixedly connected to the lower end of the guide portion (2) corresponding to the second oil leakage hole (24).

8. The wind cabinet according to claim 7, characterized in that: A groove (25) is provided at the lower end of the guide portion (2) corresponding to the second oil leakage hole (24), and the oil cup (3) is located in the groove (25).

9. The wind cabinet according to any one of claims 1 to 8, characterized in that: First mounting holes are provided on both sides of the bottom of the wind cabinet body (1), second mounting holes are provided at both ends of the air guide portion (2) corresponding to the first mounting holes, and the air guide portion (2) is fixed to the bottom of the wind cabinet body (1) by means of screws or rivets.

10. A range hood, characterized in that: Comprising the wind cabinet as described in any one of claims 1 to 9, the direction of the air outlet (12) is horizontal or vertical.

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