Exhaust fume collecting hood and range hood

Abstract

The utility model provides an exhaust fume collecting hood and a range hood. The exhaust fume collecting hood comprises a first part and a second part, the second part is connected to the bottom of the first part, the bottom face of the first part is concaved upwards to form a concave cavity, the concave cavity is provided with a first cavity wall and a second cavity wall which are oppositely arranged, the first cavity wall is located between the second cavity wall and the second part, and a first exhaust fume inlet is formed in the bottom of the second part. And a second smoke inlet is formed in the first cavity wall. The second smoke inlet is formed in the second cavity wall, so that the oil smoke entering the concave cavity can be more efficiently and fully discharged through the second smoke inlet, and the oil smoke removal effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a smoke collecting hood and a range hood. Background Art

[0002] As people's living standards improve, users' requirements for the kitchen operating environment continue to increase. As a kitchen appliance that purifies the kitchen environment, range hoods have become an indispensable part of modern life.

[0003] Generally, a range hood includes a housing and a smoke collecting hood connected to the bottom of the housing. Some smoke collecting hoods include a first part and a second part connected in an L shape. The second part is connected to the bottom of the first part, and a main smoke inlet is provided at the bottom of the second part. A concave cavity is provided on the bottom surface of the first part, and a secondary smoke inlet is provided on the cavity wall of the concave cavity facing the second part. Most of the oil smoke generated during cooking is sucked away by the smoke inlet, and a small part rises into the concave cavity and is sucked away through the secondary smoke inlet.

[0004] However, with this setting, the range hood's fume removal effect is poor. Utility Model Content

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a smoke collecting hood is provided. The smoke collecting hood comprises a first part and a second part, the second part is connected to the bottom of the first part, the bottom surface of the first part is recessed upward to form a concave cavity, the concave cavity has a first cavity wall and a second cavity wall arranged oppositely, the first cavity wall is located between the second cavity wall and the second part, a first smoke inlet is arranged at the bottom of the second part, and a second smoke inlet is arranged on the first cavity wall.

[0006] The smoke collecting hood provided in the present application has a second smoke inlet disposed on the second cavity wall, so that the oil smoke entering the concave cavity can be discharged more efficiently and fully through the second smoke inlet, thereby achieving a better oil smoke removal effect.

[0007] Exemplarily, the concave cavity further comprises a cavity top wall, which is connected between the first cavity wall and the second cavity wall, and is arranged to be inclined upward in a direction away from the second portion. The cavity top wall arranged in this way can provide a certain degree of buffering for the oil smoke entering the concave cavity, reduce the impact of the oil smoke airflow and the cavity top wall, reduce noise, and allow the oil smoke to stay in the concave cavity better, further ensuring the oil smoke removal effect.

[0008] For example, the fume hood has a mounting plane, a first angle is formed between the first cavity wall and a predetermined plane perpendicular to the mounting plane, a second angle is formed between the second cavity wall and the predetermined plane, and the first angle is smaller than the second angle. In this way, the residence time of the fume on the first cavity wall can be increased, more fume can enter the second fume inlet, and the fume removal effect is better.

[0009] Exemplarily, the first cavity wall has a first end away from the second cavity wall and a second end opposite to the first end, the second cavity wall has a third end away from the first cavity wall and a fourth end opposite to the third end, and the distance from the first end to the second end is greater than the distance from the third end to the fourth end.

[0010] Exemplarily, a lamp assembly is arranged on the cavity top wall. In this way, there is more sufficient space on the first cavity wall to arrange the second smoke inlet, and the smoke intake area of ​​the second smoke inlet can be larger, further improving the oil fume removal efficiency.

[0011] Exemplarily, the concave cavity further has a third cavity wall and a fourth cavity wall arranged opposite to each other, the third cavity wall is connected to the cavity top wall, the first cavity wall and the second cavity wall, the fourth cavity wall is connected to the cavity top wall, the first cavity wall and the second cavity wall, and one or more of the second cavity wall, the third cavity wall, the fourth cavity wall and the cavity top wall are provided with an opening. The oil smoke flowing through the cavity wall can be discharged through the opening, further improving the oil smoke removal efficiency.

[0012] For example, there are multiple second smoke inlets arranged along the length direction of the cavity, part of the multiple second smoke inlets are located on the first side and the other part are located on the second side, the first side and the second side are opposite sides in the length direction of the cavity, and the second smoke inlet located on the first side and the second smoke inlet located on the second side are symmetrically arranged. The second smoke inlets located on both sides can remove smoke from the first side and the second side more specifically, further ensuring the oil smoke removal effect

[0013] Exemplarily, at least one of the second smoke inlets on the first side is inclined toward the second side in a direction away from the second cavity wall. It is understandable that, when the size of the first cavity wall remains unchanged, the second smoke inlet arranged obliquely can have a larger area and a better smoke absorbing effect. The part of the smoke entering the concave cavity is divergent, and the second smoke inlet arranged in this way is more convenient for the smoke to flow through, and the structural arrangement is more reasonable.

[0014] Exemplarily, there are multiple concave cavities, the smoke collecting hood has a mounting plane, and in a predetermined direction perpendicular to the mounting plane, the multiple concave cavities are arranged in a direction away from the second part, and a second smoke inlet is provided on a first cavity wall of at least one of the multiple concave cavities. The smoke collecting hood arranged in this way can be better adapted to different application scenarios, for example, when there are multiple burner heads, the application range is wider.

[0015] According to another aspect of the utility model, a range hood is provided, which comprises a chassis and any of the above-mentioned smoke collecting hoods, wherein the first part is connected to the bottom of the chassis.

[0016] For example, the case includes a housing, a volute is arranged in the housing, and the distance H1 between the top of the housing and the bottom of the volute is not greater than the distance H2 between the top of the housing and the top of the cavity. In this way, the suction capacity of the volute and the fan in the volute can be better guaranteed, and the structural setting is more compact and reasonable.

[0017] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section is not intended to limit the key features and essential technical features of the technical solution claimed for protection, nor is it intended to determine the scope of protection of the technical solution claimed for protection.

[0018] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0020] Figure 1 is a perspective view of a range hood according to an exemplary embodiment of the present utility model;

[0021] Figure 2 is a perspective view of a range hood according to an exemplary embodiment of the present utility model;

[0022] Figure 3 is a cross-sectional view of a range hood according to an exemplary embodiment of the present utility model;

[0023] Figure 4 for Figure 3 A partial enlarged view of part A;

[0024] Figure 5-10 It is a cross-sectional view of a cavity according to multiple exemplary embodiments of the present invention.

[0025] The above drawings include the following reference numerals:

[0026] 10. Smoke hood; 110. First part; 1110. Concave cavity; 1111. First cavity wall; 1111a. First end; 1111b. Second end; 1112. Second cavity wall; 1112a. Third end; 1112b. Fourth end; 1113. Cavity top wall; 1114. Third cavity wall; 1115. Fourth cavity wall; 1120. Second smoke inlet; 120. Second part; 1210. First smoke inlet; 130. Mounting plane; 140. Lamp assembly; 20. Chassis; 210. Volute; 220. Box body. DETAILED DESCRIPTION

[0027] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0028] In order to thoroughly understand the implementation of the utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the utility model is described in detail below, but in addition to these detailed descriptions, the utility model can also have other implementations.

[0029] The utility model provides a smoke collecting hood in an embodiment, which can be applied to any type of range hood. Figure 1-3 , the smoke hood 10 may include a first part 110 and a second part 120. The second part 120 may be connected to the bottom of the first part 110. Specifically, the second part 120 may be connected to the side of the bottom of the first part 110 away from the user. The bottom surface of the first part 110 may be recessed upward to form a concave cavity 1110, and the concave cavity 1110 has a first cavity wall 1111 and a second cavity wall 1112 arranged opposite to each other, and the second cavity wall 1112 is located between the first cavity wall 1111 and the second part 120. A first smoke inlet 1210 may be provided at the bottom of the second part 120, and a second smoke inlet 1120 may be provided on the first cavity wall 1111. The first smoke inlet 1210 may be a long strip opening arranged along the length direction of the smoke hood 10, or may be formed by arranging a plurality of smoke inlet holes. A smoke collecting cavity may be formed inside the smoke hood 10. Both the first smoke inlet 1210 and the second smoke inlet 1120 may be connected to the smoke collecting cavity. The first cavity wall 1111 and the second cavity wall 1112 can be extended in any structure. The first cavity wall 1111 and the second cavity wall 1112 can be in a plate-like structure arranged obliquely, such as Figure 1 , 5 , 6, 7, 10, or they can be curved structures, such as Figure 8 and 9 .

[0030] When the smoke hood 10 is in use, the external oil smoke enters the interior of the smoke hood 10 from the first smoke inlet 1210 and the second smoke inlet 1120. The second part 120 is connected to the bottom of the first part 110, closer to the stove below, that is, closer to the oil smoke, and the first smoke inlet 1210 has a stronger smoke-absorbing effect than the second smoke inlet 1120 during the oil smoke absorbing process. When in use, a negative pressure is formed inside the smoke hood 10, and the first smoke inlet 1210 as the main smoke inlet draws the surrounding oil smoke, and the oil smoke will flow more to the second part 120. In this way, the oil smoke as a whole will be closer to the second part 120, that is, the closer to the second part 120, the higher the oil smoke concentration. Most of the oil smoke entering the concave cavity 1110 enters from the second cavity wall 1112 side, and the oil smoke in the concave cavity 1110 will gather more on the side close to the second part 120, that is, near the second cavity wall 1112. The smoke collecting hood 10 provided in the present application has a second smoke inlet 1120 disposed on the second cavity wall 1112, so that the oil smoke entering the cavity 1110 can be discharged more efficiently and fully through the second smoke inlet 1120, thereby achieving a better oil smoke removal effect.

[0031] For example, in conjunction with reference Figure 3 and 4 The concave cavity 1110 may also have a cavity top wall 1113, which may be connected between the first cavity wall 1111 and the second cavity wall 1112, and the cavity top wall 1113 may be arranged to be inclined upward in a direction away from the second portion 120. The cavity top wall 1113 arranged in this way may provide a certain degree of buffering for the oil smoke entering the concave cavity 1110, reduce the impact of the oil smoke airflow and the cavity top wall 1113, reduce the noise, and allow the oil smoke to stay better in the concave cavity 1110, further ensuring the oil smoke removal effect. In some embodiments, the first cavity wall 1111 and the second cavity wall 1112 may be directly connected, referring to Figure 6 and 8 .

[0032] For example, continue to combine with reference Figure 3 and 4, the smoke hood 10 may have a mounting plane 130. It is understandable that the smoke hood 10 is usually mounted on a wall, and the mounting plane 130 may be the side of the smoke hood 10 that contacts the wall when it is installed. That is, the mounting plane 130 may be the side of the first part 110 and the second part 120 facing the wall, and also the side of the first part 110 and the second part 120 facing away from the user. There is a first angle α1 between the first cavity wall 1111 and a predetermined plane perpendicular to the mounting plane 130, and there is a second angle α2 between the second cavity wall 1112 and the predetermined plane, and the first angle α1 is smaller than the second angle α2. In other words, the first cavity wall 1111 has a smaller inclination angle relative to the second cavity wall 1112, and the oil smoke passes through the first cavity wall 1111 more smoothly. In this way, the residence time of the oil smoke on the first cavity wall 1111 can be increased, more oil smoke can enter the second smoke inlet 1120, and the oil smoke removal effect is better. In some embodiments, the angles between the first cavity wall 1111 and the second cavity wall 1112 and the predetermined plane may be the same, referring to Figure 5-10 .

[0033] Exemplarily, the first cavity wall 1111 may have a first end 1111a away from the second cavity wall 1112 and a second end 1111b opposite to the first end 1111a, the second cavity wall 1112 may have a third end 1112a away from the first cavity wall 1111 and a fourth end 1112b opposite to the third end 1112a, and the distance L1 from the first end 1111a to the second end 1111b is greater than the distance L2 from the third end 1112a to the fourth end 1112b. In other words, when the overall size of the concave cavity 1110 remains unchanged, the area of ​​the first cavity wall 1111 can be set larger. In this way, there can be more sufficient space on the first cavity wall 1111 to set the second smoke inlet 1120, and the smoke intake area of ​​the second smoke inlet 1120 can be larger, further improving the oil fume removal efficiency. In some embodiments, the first cavity wall 1111 and the second cavity wall 1112 can be symmetrically arranged, referring to Figure 5-10 .

[0034] For example, refer to Figure 2 The cavity top wall 1113 may be provided with a lamp assembly 140. The lamp assembly 140 may provide lighting, facilitate the cooking process, and improve the user experience. The cavity top wall 1113 may provide more sufficient installation space for the lamp assembly 140.

[0035] Exemplarily, the concave cavity 1110 may also have a third cavity wall 1114 and a fourth cavity wall 1115 arranged opposite to each other. The third cavity wall 1114 is connected to the cavity top wall 1113, the first cavity wall 1111 and the second cavity wall 1112. The fourth cavity wall 1115 is connected to the cavity top wall 1113, the first cavity wall 1111 and the second cavity wall 1112. An opening may be provided on one or more of the second cavity wall 1112, the third cavity wall 1114, the fourth cavity wall 1115 and the cavity top wall 1113. The function of the opening may be similar to that of the second smoke inlet 1120. The opening may be connected to the smoke collecting cavity in the smoke collecting hood 10. The oil smoke flowing through the cavity wall may be discharged through the opening, further improving the oil smoke removal efficiency.

[0036] For example, refer to Figure 1 , the second smoke inlet 1120 may be multiple and arranged along the length direction of the cavity 1110, a part of the multiple second smoke inlets 1120 is located on the first side and another part is located on the second side, the first side and the second side are opposite sides in the length direction of the cavity 1110, that is, opposite sides in the XX direction. The second smoke inlet 1120 located on the first side and the second smoke inlet 1120 located on the second side may be symmetrically arranged. The second smoke inlets 1120 located on both sides can remove smoke from the first side and the second side more specifically, further ensuring the oil smoke removal effect.

[0037] Exemplarily, at least one of the second smoke inlets 1120 located on the first side is inclined toward the second side in a direction away from the second cavity wall 1112. Correspondingly, at least one of the second smoke inlets 1120 located on the second side can be inclined toward the first side in a direction away from the second cavity wall 1112. It can be understood that, when the size of the first cavity wall 1111 remains unchanged, the second smoke inlet 1120 arranged obliquely can have a larger area and a better effect of absorbing oil smoke. Part of the oil smoke entering the concave cavity 1110 is divergent, and the second smoke inlet 1120 arranged in this way is more convenient for the flow of oil smoke, and the structural arrangement is more reasonable.

[0038] For example, in conjunction with reference Figure 3 , 9In the embodiment of the present invention, the concave cavity 1110 may be multiple, and the smoke collecting hood 10 has a mounting plane 130. In a predetermined direction perpendicular to the mounting plane 130, the multiple concave cavities 1110 are arranged in a direction away from the second part 120, and the first cavity wall 1111 of at least one of the multiple concave cavities 1110 may be provided with a second smoke inlet 1120. In other words, the first cavity wall 1111 of some or all of the multiple concave cavities 1110 may be provided with a second smoke inlet 1120. In the embodiment where the number of concave cavities 1110 is two, the second smoke inlet 1120 may be provided only on the first cavity wall 1111 of the concave cavity 1110 closer to the second part 120. Alternatively, the second smoke inlet 1120 may be provided on the first cavity wall 1111 of both concave cavities 1110. The smoke collecting hood 10 provided in this way can be better applied to different application scenarios, for example, when there are multiple burner heads, the application range is wider.

[0039] According to another aspect of the present invention, a range hood is also provided. Figure 1-3 The range hood may include a chassis 20 and any of the above-mentioned smoke hoods 10, and the first portion 110 may be connected to the bottom of the chassis 20. Since the smoke hood 10 adopts the technical solution of any of the above-mentioned embodiments, the range hood at least has the beneficial effects brought by the technical solution of the above-mentioned embodiments, which will not be described one by one here. In addition, the range hood may also include control elements, oil collection parts, etc. The control elements and oil collection parts may have various structures that exist or may appear in the future, which do not constitute a limitation on the protection scope of the present utility model.

[0040] For example, refer to Figure 3 The case 20 may include a housing 220, and a volute 210 may be disposed in the housing 220. A fan may be disposed in the volute 210, and the operation of the fan forms a negative pressure in the smoke collecting chamber. The distance H1 between the top of the housing 220 and the bottom of the volute 210 is not greater than the distance H2 between the top of the housing 220 and the top of the cavity 1110. It can be understood that after the smoke hood is installed, the top of the cavity 1110 and the bottom of the volute 210 are at the same horizontal height, or the top of the cavity 1110 is lower than the bottom of the volute 210. In this way, the smoking capacity of the volute 210 and the fan in the volute 210 can be better guaranteed, and the structural setting is more compact and reasonable.

[0041] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0042] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0045] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A smoke hood, characterized in that: The smoke detector comprises a first part and a second part, wherein the second part is connected to the bottom of the first part, the bottom surface of the first part is recessed upward to form a concave cavity, the concave cavity has a first cavity wall and a second cavity wall arranged opposite to each other, the first cavity wall is located between the second cavity wall and the second part, a first smoke inlet is arranged at the bottom of the second part, and a second smoke inlet is arranged on the first cavity wall.

2. The smoke hood according to claim 1, characterized in that: The concave cavity further comprises a cavity top wall, wherein the cavity top wall is connected between the first cavity wall and the second cavity wall, and the cavity top wall is arranged to be inclined upward in a direction away from the second part.

3. The smoke collecting hood according to claim 1, characterized in that: The smoke hood has a mounting plane, the first cavity wall has a first angle with a predetermined plane perpendicular to the mounting plane, the second cavity wall has a second angle with the predetermined plane, and the first angle is smaller than the second angle.

4. The smoke collecting hood according to claim 1, characterized in that: The first cavity wall has a first end away from the second cavity wall and a second end opposite to the first end, the second cavity wall has a third end away from the first cavity wall and a fourth end opposite to the third end, and the distance from the first end to the second end is greater than the distance from the third end to the fourth end.

5. The smoke collecting hood according to claim 2, characterized in that: A lamp assembly is arranged on the top wall of the cavity.

6. The smoke collecting hood according to claim 2, characterized in that: The concave cavity also has a third cavity wall and a fourth cavity wall arranged opposite to each other, the third cavity wall is connected to the cavity top wall, the first cavity wall and the second cavity wall, the fourth cavity wall is connected to the cavity top wall, the first cavity wall and the second cavity wall, and one or more of the second cavity wall, the third cavity wall, the fourth cavity wall and the cavity top wall are provided with an opening.

7. The fume hood according to claim 1, characterized in that: There are multiple second smoke inlets and they are arranged along the length direction of the concave cavity, part of the multiple second smoke inlets are located on the first side and the other part are located on the second side, the first side and the second side are opposite sides in the length direction of the concave cavity, and the second smoke inlet located on the first side and the second smoke inlet located on the second side are symmetrically arranged.

8. The fume hood according to claim 7, characterized in that: At least one of the second smoke inlets located on the first side is inclined toward the second side in a direction away from the second cavity wall.

9. The fume hood according to claim 1, characterized in that: There are multiple concave cavities, and the smoke collecting hood has a mounting plane. In a predetermined direction perpendicular to the mounting plane, the multiple concave cavities are arranged in a direction away from the second part, and the first cavity wall of at least one of the multiple concave cavities is provided with the second smoke inlet.

10. A range hood, characterized in that: The invention comprises a machine case and the fume collecting hood according to any one of claims 1 to 9, wherein the first part is connected to the bottom of the machine case.

11. The range hood according to claim 10, characterized in that: The case comprises a box body, a volute is arranged in the box body, and a distance H1 between the top end of the box body and the bottom end of the volute is not greater than a distance H2 between the top end of the box body and the top end of the concave cavity.

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