Air duct structure, air supply part and range hood

Abstract

The utility model relates to an air duct structure, an air supply part and a range hood. The air duct structure comprises an air duct body and a semiconductor chilling plate. An air supply duct is arranged in the air duct body, the semiconductor chilling plate is arranged in the air duct body, and the refrigeration face faces the interior of the air supply duct. According to the air duct structure, when air supply airflow flows along the air supply duct, the air supply airflow flows through the semiconductor chilling plate and faces the refrigeration face in the air supply duct. At the moment, the air supply flow and the refrigeration face of the semiconductor refrigeration piece can conduct heat convection to be cooled, and cold air is formed and is finally used for being blown to a user. Therefore, the air duct structure helps to promote air flow circulation, enhance heat exchange with the human body and sweat evaporation of the human body to achieve the effect of reducing the sensible temperature, and also has a refrigeration function, so that even if the environment temperature is high, the cooling effect can be enhanced by reducing the actual temperature of the air supply air flow, and the comfort of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and particularly to an air duct structure, an air supply part, and a range hood. Background Art

[0002] During the use of a range hood, due to the reason of the stove being lit, when cooking, the stove is lit, and the user needs to be close to the stove when cooking, and its heat will be transferred to the user's body, causing discomfort to the user. It is necessary to rely on a fan or an air-conditioning system for cooling, thus there appears a type of range hood with auxiliary functions such as a fan range hood.

[0003] In the related art, a fan range hood can only promote air circulation through a fan, strengthen heat exchange with the human body and evaporation of human sweat to achieve the effect of reducing the body sensation temperature. The cooling effect is limited. Especially when the ambient temperature rises to a relatively high level due to cooking, the cooling effect of the fan range hood will be significantly limited and it is difficult to meet the requirements. Utility Model Content

[0004] Based on this, in view of the above problems, it is necessary to provide an air duct structure, an air supply part, and a range hood that can improve the cooling effect.

[0005] An air duct structure, the air duct structure includes:

[0006] An air duct body having an air supply duct therein; and

[0007] A semiconductor refrigeration sheet provided on the air duct body and with the refrigerating surface facing the inside of the air supply duct.

[0008] In one embodiment, the air supply duct has an air outlet, and the air duct structure further includes a guide vane rotatably provided at the air outlet.

[0009] In one embodiment, the guide vane is configured to be able to rotate around a rotation axis, and the center of gravity of the guide vane is located on one side of the rotation axis.

[0010] In one embodiment, the guide vane includes a wind guiding part and a balance weight, the wind guiding part is rotatably connected to the air duct body, and the balance weight is connected to one side edge of the wind guiding part.

[0011] In one embodiment, the guide vane further includes a bearing assembly, and both ends of the wind guiding part in the longitudinal direction are rotatably connected to the air duct body through the bearing assembly.

[0012] In one embodiment, the wind guiding part and the balance weight are integrally connected.

[0013] In one embodiment, the air duct body has at least two of the air supply ducts, and at least part of the air supply ducts are provided with the semiconductor refrigeration chips.

[0014] An air supply part includes the above-mentioned air duct structure.

[0015] In one embodiment, the air supply part further includes a cross-flow fan, and the cross-flow fan is arranged in the air supply duct.

[0016] An oil fume extractor includes the above-mentioned air duct structure or the above-mentioned air supply part.

[0017] When the air supply air flow flows along the air supply duct in the above-mentioned air duct structure, the air supply part, and the oil fume extractor, it will flow through the refrigerating surface of the semiconductor refrigeration chip facing the inside of the air supply duct. At this time, the air supply air flow will undergo convective heat transfer with the refrigerating surface of the semiconductor refrigeration chip and be cooled down to form cold air and finally be used to blow towards the user. In this way, while the air duct structure helps to promote air circulation, strengthen heat exchange with the human body and evaporation of human sweat to achieve the effect of reducing the perceived temperature, it also has a refrigeration function, so that even when the ambient temperature is relatively high, it can strengthen the cooling effect by reducing the actual temperature of the air supply air flow and improve the comfort of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the air duct structure in an embodiment of the present application.

[0020] Figure 2 It is Figure 1 a schematic structural diagram of the air duct structure shown after hiding the air deflector.

[0021] Figure 3 It is Figure 1 a schematic structural diagram of the air deflector in the air duct structure shown.

[0022] Figure 4 It is Figure 3 a schematic structural diagram of another angle of the air deflector shown.

[0023] Figure 5 It is Figure 1 a schematic structural diagram of yet another angle of the air deflector shown.

[0024] Explanation of the reference numerals: 100, air duct structure; 10, air duct body; 11, air supply duct; 30, semiconductor cooling plate; 50, air guide plate; 51, air guide part; 511, rotating end; 53, balancing block; 55, bearing assembly. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing and simplifying the description of this application, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] In addition, if the term "and / or" appears, "and / or" is merely a way to describe the association relationship between associated objects, and indicates that there may be three relationships, for example, A and / or B can represent the association relationship between A and B: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that there is an "or" relationship between the associated objects before and after it. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, four, five, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly stipulated or limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In this application, unless otherwise clearly stipulated or limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0030] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation manner.

[0031] Please refer to Figure 1 and Figure 2 , the air duct structure 100 provided by an embodiment of this application includes an air duct body 10 and a thermoelectric cooler 30. The air duct body 10 has a supply air duct 11, and the thermoelectric cooler 30 is disposed in the air duct body 10 with the cooling surface facing the inside of the supply air duct 11.

[0032] It can be understood that the air duct structure 100 can be used in a range hood to guide the air flow to blow outwards to cool the user. Among them, for the supply air duct 11 to achieve its normal function, it has an air inlet (not shown in the figure) and an air outlet. A structure for fixing the air wheel is provided on the air duct main body, and a supply air wheel (not shown in the figure) can be installed in the supply air duct 11. Driven by the supply air wheel, the air flow flows from the air inlet to the air outlet and is finally sent outwards from the air outlet to form a supply air flow blowing towards the user.

[0033] The air duct structure 100 may include an entire semiconductor refrigeration sheet 30, or may include two or more semiconductor refrigeration sheets 30. The semiconductor refrigeration sheet 30 has a refrigerating surface for generating low temperature and a heat dissipating surface for heat dissipation. Understandably, the semiconductor refrigeration sheet 30 is configured such that the refrigerating surface faces the inside of the air supply duct 11, and the heat dissipating surface faces away from the air supply duct 11 and is located outside the air supply duct 11. Specifically, the air duct structure 100 may have a mounting hole, and the semiconductor refrigeration sheet 30 is embedded in the mounting hole, with the refrigerating surface facing the inside of the air supply duct 11 of the air duct body 10 and the heat dissipating surface facing outside the air duct body 10.

[0034] In the above-mentioned air duct structure 100, when the air supply airflow flows along the air supply duct 11, it will flow through the refrigerating surface of the semiconductor refrigeration sheet 30 facing the inside of the air supply duct 11. At this time, the air supply airflow will undergo convective heat transfer with the refrigerating surface of the semiconductor refrigeration sheet 30 and be cooled, forming cold air and finally being used to blow towards the user. In this way, while the air duct structure 100 helps to promote air circulation, strengthen heat exchange with the human body and evaporation of human sweat to achieve the effect of reducing the perceived temperature, it also has a refrigeration function, enabling it to enhance the cooling effect by reducing the actual temperature of the air supply airflow even when the ambient temperature is relatively high, thereby improving the comfort of the user.

[0035] In some embodiments, the air duct body 10 has at least two air supply ducts 11, and semiconductor refrigeration sheets 30 are provided in at least part of the air supply ducts 11.

[0036] All the air supply ducts 11 may be arranged in parallel, and an air outlet can be formed in each air supply duct 11, and an air supply air wheel can be provided separately or the same air supply air wheel can be shared. Among all the air supply ducts 11, semiconductor refrigeration sheets 30 may be provided in some of the air supply ducts 11, or semiconductor refrigeration sheets 30 may be provided in all the air supply ducts 11.

[0037] In this way, the air duct body 10 has multiple air supply ducts 11. At the same size, the size of each duct can be reduced, and the requirements for part size and installation accuracy can be lowered. In addition, when semiconductor refrigeration sheets 30 are provided in some of the air supply ducts 11, the air supply air wheels in different air supply ducts 11 can be independently controlled to achieve different modes.

[0038] Please refer to Figures 3 to 5 , in some embodiments, the air duct structure 100 further includes a wind deflector 50, and the wind deflector 50 is rotatably provided at the air outlet.

[0039] Understandably, the wind deflector 50 is used to guide the air outlet direction of the air supply airflow at the air outlet, that is, to direct the air blown out of the air duct structure 100. The wind deflector 50 is configured to be able to rotate around a rotation axis, and the rotation axis intersects with the orientation of the air outlet, and the wind deflector 50 changes its own angle by rotating.

[0040] In this way, the air deflector 50 can rotate along the rotation axis under the blowing force generated by the air supply impeller, guiding the air blown out by the air supply impeller to a large range and blowing it towards the user, improving the cooling effect on the user and increasing the cooling range, and improving the kitchen environment. In some embodiments, the air deflector 50 may also be capable of being controlled to adjust to a specified angle and / or capable of reciprocatingly swinging under drive to help achieve functions such as the sweeping function.

[0041] Specifically, the air deflector 50 is made of a metal material, and the metal material has good thermal conductivity, which can improve the temperature uniformity of the air supply air flow.

[0042] In some embodiments, the center of gravity of the air deflector 50 is located on one side of the rotation axis.

[0043] In this way, when the air supply impeller stops supplying air and the air deflector 50 is not blown, under the action of gravity, the air deflector 50 can maintain a position where the center of gravity is below the rotation axis. In other words, in the non-working state of the air supply impeller, each time the air deflector 50 can stop at a set angle instead of randomly stopping and fixing. At the same time, the air deflector 50 can be configured to block the air outlet when it stops at its set angle, improving the sealing performance of the air duct structure 100.

[0044] In some embodiments, the air deflector 50 includes a wind guiding portion 51 and a balance weight 53. The wind guiding portion 51 is rotatably connected to the air duct body 10, and the balance weight 53 is connected to one side edge of the wind guiding portion 51.

[0045] The center of gravity of the wind guiding portion 51 is located on the rotation axis of the air deflector 50, and the wind guiding portion 51 can be symmetric about this rotation axis. The balance weight 53 can make the center of gravity of the air deflector 50 be on one side of the rotation axis. When the air deflector 50 is not blown, the wind guiding portion 51 can be driven by the balance weight 53 to rotate until the balance weight 53 is below.

[0046] Specifically, the air deflector 50 may include two or more balance weights 53, and all the balance weights 53 are spaced apart and distributed on one side edge of the wind guiding portion 51. Preferably, the air deflector 50 includes two balance weights 53, and the two balance weights 53 are respectively located at both ends of one side edge of the wind guiding portion 51.

[0047] In this way, when the air supply impeller is in the non-working state, under the drive of the balance weight 53, the air deflector 50 can stop at a set angle instead of randomly stopping and fixing.

[0048] Furthermore, the wind guiding portion 51 and the balance weight 53 are integrally connected and arranged, and the wind guiding portion 51 and the balance weight 53 can be integrally formed.

[0049] In this way, the connection between the wind guiding portion 51 and the balance weight 53 is closer, and the manufacturing process of the air duct structure 100 is less.

[0050] In some embodiments, the air deflector 50 further includes a bearing assembly 55. The two ends of the air guiding portion 51 in the longitudinal direction are rotatably connected to the air duct body 10 through the bearing assembly 55.

[0051] Understandably, there are two sets of bearing assemblies 55, both of which are fixed on the air duct body. The two ends of the air guiding portion 51 in the longitudinal direction may have rotating ends 511, and the rotating ends 511 at both ends of the air guiding portion 51 are respectively inserted into the two sets of bearing assemblies 55.

[0052] In this way, the air guiding portion 51 is connected to the air duct body 10 through the bearing assembly 55, and smooth rotation relative to the air duct body 10 is achieved through the bearing assembly 55.

[0053] In the above air duct structure 100, the semiconductor refrigeration sheet 30 has a refrigeration function, and the refrigerating surface faces the inside of the air supply duct 11. The low temperature generated by the semiconductor refrigeration sheet 30 is transferred to the air supply air flow flowing along the air supply duct 11, and then cold air is blown towards the kitchen cook, achieving a cooling effect and improving the comfort of the user. In addition, the air deflector 50 is installed on the bearing assembly 55. The air blown out from the air supply air wheel passes through the air deflector 50. Under the action of the wind force, the air deflector 50 can rotate along the central axis of the bearing assembly 55, transmitting and diffusing the blown air to a wider range, achieving the effect of cooling the surrounding air.

[0054] The present application also provides an air supply portion, including the above air duct structure 100.

[0055] The air supply portion is used to form an air supply air flow and supply air outward, and it can be specifically used in devices such as range hoods, air conditioners, air purifiers, humidifiers, etc.

[0056] Understandably, to achieve its normal function, the air supply portion further includes an air supply wheel. The air supply air wheel is arranged in the air supply duct 11. Under the drive of the air supply air wheel, an air supply air flow flowing from the air inlet to the air outlet is formed in the air supply duct 11.

[0057] Further, the air supply air wheel is a cross-flow air wheel, and the cross-flow air wheel is arranged in the air supply duct 11.

[0058] In this way, the air supply portion can achieve large-area lateral air supply through the cross-flow air wheel. In addition, the cross-flow air wheel also has the advantages of compact structure, small volume, low noise, small vibration, uniform air volume, and high stability.

[0059] Understandably, in some other embodiments, the air supply air wheel can also be an axial-flow air wheel, a centrifugal air wheel, etc., which are not specifically limited herein.

[0060] The present application also provides a range hood, including the above air duct structure 100 or the above air supply portion. The range hood can be, but is not limited to, an European-style range hood, a T-shaped range hood, a side-suction range hood, etc., which are not specifically limited herein.

[0061] Understandably, the range hood can be, but is not limited to, a fan range hood, an air-conditioning range hood, etc., and no specific limitation is made here. To achieve its normal function, the range hood further includes a range hood part, which is used to generate suction so as to be able to suck cooking fumes from its smoke suction port.

[0062] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0063] The above-described embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An air duct structure, characterized in that, The air duct structure includes: An air duct body (10) having an air supply duct (11) therein; and A semiconductor refrigeration sheet (30) disposed in the air duct body (10) with the refrigerating surface facing into the air supply duct (11).

2. The air duct structure according to claim 1, wherein, The air supply duct (11) has an air outlet, and the air duct structure further includes a wind guiding plate (50) rotatably disposed at the air outlet.

3. The air duct structure according to claim 2, wherein, The wind guiding plate (50) is configured to be rotatable about a rotation axis, and the center of gravity of the wind guiding plate (50) is located on one side of the rotation axis.

4. The air duct structure according to claim 2, characterized in that The wind guiding plate (50) includes a wind guiding portion (51) and a balance weight (53). The wind guiding portion (51) is rotatably connected to the air duct body (10), and the balance weight (53) is connected to one side edge of the wind guiding portion (51).

5. The air duct structure according to claim 4, wherein The wind guiding plate (50) further includes a bearing assembly (55). Both ends of the wind guiding portion (51) in the longitudinal direction are rotatably connected to the air duct body (10) through the bearing assembly (55).

6. The air duct structure according to claim 4, wherein, The wind guiding portion (51) and the balance weight (53) are integrally connected and provided.

7. The air duct structure according to any one of claims 1-6, characterized in that, The air duct body (10) has at least two of the air supply ducts (11), and the semiconductor refrigeration sheet (30) is disposed in at least part of the air supply ducts (11).

8. An air supply unit, characterized in that, Including the air duct structure according to any one of claims 1-7.

9. The air supply unit according to claim 8, wherein The air supply portion further includes a cross-flow fan disposed in the air supply duct (11).

10. A range hood, characterized in that, Including the air duct structure according to any one of claims 1-7 or the air supply portion according to any one of claims 8-9.

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