Range hood

Abstract

The utility model provides a range hood. The range hood comprises a first box body, a second box body, a fan assembly and a silencing piece, a first box with an opening in the top is defined by the first box body; the second box body is connected to the upper portion of the first box and surrounds the top opening to form the second box, the second box and the first box are communicated through the top opening to form a communication cavity, the fan assembly is located in the communication cavity, and the silencing part is arranged on the inner wall of the second box body; wherein the projection of the silencing piece towards the plane where the top opening is located forms an enclosed area, and the projection of the fan assembly towards the plane where the top opening is located is located in the enclosed area. According to the range hood disclosed by the utility model, the silencing part is arranged on the inner wall of the second box body, and the silencing part forms the enclosure area for enclosing the fan assembly, so that the noise generated between the second box body and the fan assembly can be fully absorbed, and the aim of reducing the noise is fulfilled.

Description

Technical Field

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

[0002] To improve the range hood's extraction efficiency, the distance between the fan and the air inlet can be shortened. Typically, side-suction range hoods have the fan installed inside the enclosure, shortening the distance between the fan and the air inlet. However, as performance requirements increase, the fan's dimensions are increasing, and it may not be possible to completely fit inside the enclosure. Therefore, an additional enclosure is needed on top of the enclosure to increase installation space.

[0003] After the range hood is started, it draws in smoke, which forms a vortex between the fan and the chassis, generating noise. As the performance of the range hood improves, the noise will also increase. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a range hood is provided, and the technical solution is as follows.

[0005] A range hood comprises a first box body, a second box body, a fan assembly and a silencer; the first box body encloses a first box with a top opening; the second box body is connected to the upper part of the first box and is arranged around the top opening to form a second box, the second box and the first box are connected through the top opening to form a connecting cavity, the fan assembly is located in the connecting cavity, and the silencer is arranged on the inner wall of the second box body; wherein, the projection of the silencer onto the plane where the top opening is located forms an enclosed area, and the projection of the fan assembly onto the plane where the top opening is located is located within the enclosed area.

[0006] In the range hood of the present invention, the silencer is arranged on the inner wall of the second box body, and the silencer forms an enclosed area enclosing the fan assembly, which can fully absorb the noise generated between the second box body and the fan assembly, thereby achieving the purpose of reducing noise.

[0007] For example, a fixing member is connected to the second box body, and the muffler is fixed to the inner wall of the second box body through the fixing member. In this way, the muffler is fixed by the fixing member to prevent the muffler from falling off.

[0008] For example, the second housing includes a main body section and a folded section. The folded section folds back from one end of the main body section away from the first housing section, forming a gap between the folded section and the main body section. The fixing member has a first end that is positioned within the gap, and the muffler is sandwiched between the main body section and the fixing member. This arrangement secures the fixing member by locking the first end of the fixing member within the gap, and the muffler is sandwiched between the main body section and the fixing member, preventing the muffler from shaking when excessive smoke is present.

[0009] For example, the gap size is D1, and D1 is 0.5 mm to 1.5 mm. In this way, the gap is within this range to ensure that the fixing member can be inserted, so that the fixing member can be fixed.

[0010] Exemplarily, the fixing member has a thickness D2, and D1≤D2. In this way, D1≤D2 ensures that the fixing member can be inserted into the gap, thereby fixing the fixing member.

[0011] Exemplarily, the fixing member has a second end away from the first end, and the second end is fixed to the body segment by a fastener. This arrangement further fixes the fixing member, thereby further enhancing the stability of the muffler fixing.

[0012] For example, a fixing section extends from the second end toward the main body section, and the fixing section abuts against the end surface of the muffler. This arrangement limits and supports the muffler, thereby enhancing the stability of the muffler's fixation.

[0013] For example, the second housing has a surface area S1, the muffler has a surface area S2, and S2 / S1≥0.5. In this configuration, the ratio of the surface area of ​​the muffler to the surface area of ​​the second housing can ensure the noise reduction effect within this range.

[0014] For example, the fan assembly is partially located in the first compartment and partially in the second compartment. The fan assembly has a length D, and the portion of the fan assembly located in the first compartment has a length D3, where D3 / D ≥ 0.5. This arrangement provides ample installation space, shortens the distance between the fan assembly and the range hood's smoke inlet, improves extraction efficiency, and reduces noise.

[0015] For example, the fan assembly has an air inlet, the first housing has a front panel, and an angle α is formed between a plane where the air inlet lies and a plane where the front panel lies, with the angle α being between 0° and 50°. This arrangement reduces the angle between the smoke inlet on the front panel and the air inlet of the fan assembly, thereby improving smoking efficiency and reducing noise.

[0016] For example, the first housing has a front panel, and an angle β is formed between the plane where the central axis of the fan assembly lies and the plane where the front panel lies, and the angle β is between 40° and 90°. With this arrangement, the fan assembly is tilted or perpendicular to the front panel, which reduces the resistance to smoke. Furthermore, within the range of this angle β, a reasonable and flexible selection can be made based on actual smoking conditions, facilitating standardized production.

[0017] The Summary of the Utility Model introduces a series of simplified concepts, which will be further described in detail in the Detailed Description of the Utility Model. This Summary of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0018] The advantages and features of the present invention are described in detail below with reference to 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 embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0020] Figure 1 A front view of a range hood according to an exemplary embodiment of the present invention;

[0021] Figure 2 for Figure 1 AA cross-sectional view of the range hood shown;

[0022] Figure 3 for Figure 1 An exploded view of the range hood is shown;

[0023] Figure 4 for Figure 1 The illustrated perspective view of the range hood is without the second box;

[0024] Figure 5 for Figure 1 An exploded view of a portion of the range hood shown;

[0025] Figure 6 for Figure 1 The internal structure diagram of the second box shown;

[0026] Figure 7 for Figure 6 A perspective view of the second housing shown;

[0027] Figure 8 for Figure 7 A magnified view of A is shown;

[0028] Figure 9 for Figure 6 A perspective view of the fixing member is shown.

[0029] The above drawings include the following reference numerals:

[0030] 10. Range hood; 110. First housing; 111. First box; 112. Smoke inlet; 113. Front panel; 114. Top opening; 120. Second housing; 121. Second box; 122. Main body section; 1221. Top end; 123. Return section; 1231. Folded edge; 124. Gap; 130. Connecting cavity; 140. Fan assembly; 141. Air inlet; 150. Silencer; 160. Fixing member; 161. Through hole; 162. First end; 163. Second end; 164. Fixing hole; 165. Fixing section; 170. Fastener. DETAILED DESCRIPTION

[0031] In the following description, numerous details are provided to facilitate a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features known in the art have not been described in detail.

[0032] To thoroughly understand the embodiments of the present invention, a detailed structure will be provided in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0033] An embodiment of the present invention provides a range hood. The range hood provided by the present invention can be used in kitchens to absorb oil and smoke. The following describes a range hood according to an embodiment of the present invention in detail with reference to the accompanying drawings.

[0034] See also Figures 1 to 4 The range hood 10 may include a first housing 110, a second housing 120, a fan assembly 140, and a muffler 150. The first housing 110 may enclose a first housing 111 with a top opening 114. The second housing 120 may be connected to the upper portion of the first housing 111 and disposed around the top opening 114 to form a second housing 121. The second housing 121 and the first housing 111 may be connected via the top opening 114 to form a connecting cavity 130. The fan assembly 140 may be located within the connecting cavity 130. The muffler 150 may be disposed on the inner wall of the second housing 120 and may be in contact with the inner wall of the second housing 120 to reduce shaking of the muffler 150 caused by smoke flow. The projection of the muffler 150 onto the plane where the top opening 114 is located forms an enclosed area. The projection of the fan assembly 140 onto the plane where the top opening 114 is located may be located within the enclosed area.

[0035] In the range hood 10 of the present invention, the silencer 150 is arranged on the inner wall of the second box body 120, and the silencer 150 forms an enclosed area enclosing the fan assembly 140, which can fully absorb the noise generated between the second box body 120 and the fan assembly 140, thereby achieving the purpose of reducing noise. The fan assembly 140 is located in the connecting cavity 130, which provides sufficient installation space for the fan assembly 140. A smoke inlet 112 is provided on the first box body 110, and the distance between the smoke inlet 112 and the fan assembly 140 is reduced, thereby improving the smoke extraction efficiency of the range hood 10. The silencer 150 can be made of silencer cotton, which saves manufacturing costs. Of course, the silencer 150 can also be made of other structural parts with noise reduction functions.

[0036] In the embodiments of the present invention, Figure 1 、 Figure 4 、 Figure 5 and Figure 8 A fixing member 160 may be connected to the second housing 120. The silencer 150 may be fixed to the inner wall of the second housing 120 by the fixing member 160. With this arrangement, the silencer 150 is fixed by the fixing member 160, thereby preventing the silencer 150 from falling off. The fixing member 160 may be provided with a plurality of through holes 161, through which noise may pass and be absorbed by the silencer 150. There may be a plurality of fixing members 160, and the silencer 150 may be fixed at multiple positions by the plurality of fixing members 160, thereby enhancing the stability of the silencer 150.

[0037] In the embodiments of the present invention, Figures 3 to 8 The second box body 120 may include a main body section 122 and a folded section 123. The folded section 123 may be formed from one end of the main body section 122 away from the first box body 110 (e.g., Figure 7 The top end 1221 shown is folded back. A gap 124 can be formed between the folded section 123 and the main body section 122. The fixing member 160 can have a first end 162 that is clamped into the gap 124. The silencer 150 can be clamped between the main body section 122 and the fixing member 160. In this way, the fixing member 160 is fixed by clamping the first end 162 of the fixing member 160 in the gap 124, and the silencer 150 is clamped between the main body section 122 and the fixing member 160, thereby avoiding the situation where the silencer 150 shakes when the smoke is too large. The end of the folded section 123 away from the folded back main body section 122 can be bent to form a folded edge 1231, and the folded edge 1231 can be used to limit other structural members or connect with other structural members. It can be understood that the gap 124 between the end of the folded section 123 forming the folded edge 1231 and the main section 122 is the largest, so that the silencer 150 and the main section 122 can fit together.

[0038] In the embodiments of the present invention, Figure 6 and Figure 8 The gap 124 may have a size D1, which may be 0.5 mm to 1.5 mm. For example, D1 may be 0.5 mm, 1 mm, or 1.5 mm. With this arrangement, the gap 124 ensures that the fixing member 160 can be inserted within this range, thereby securing the fixing member 160.

[0039] In the embodiments of the present invention, Figure 8 and Figure 9 The fixing member 160 may have a thickness D2, where D1≤D2. This arrangement, where D1≤D2, ensures that the fixing member 160 can be inserted into the gap 124, thereby securing the fixing member 160.

[0040] In one embodiment of the present invention, Figures 6 to 9 The fixing member 160 may have a second end 163 remote from the first end 162. The second end 163 may be secured to the main body section 122 via a fastener 170. The fastener 170 may be a screw or bolt, etc. The fixing member 160 may be provided with a fixing hole 164, through which the fastener 170 may pass to secure the fixing member 160. The size of the fixing hole 164 may be larger than that of the through hole 161, making it easier to distinguish between the fixing hole 164 and the fastener 170 when they are engaged. This arrangement further secures the fixing member 160, thereby further enhancing the stability of the muffler 150.

[0041] In the embodiments of the present invention, Figure 6 and Figure 9 A fixing section 165 can extend from the second end 163 toward the main body section 122. The fixing section 165 can abut against the end surface of the muffler 150. This arrangement provides positional support and stability for the muffler 150, enhancing its securement. The plane of the fixing section 165 and the plane of the main body section 122 can be perpendicular or at an angle to each other. The best positional support and stability are achieved when the plane of the fixing section 165 is perpendicular to the plane of the main body section 122.

[0042] In the embodiment of the present invention, see Figure 5 The second housing 120 may have a surface area S1, and the silencer 150 may have a surface area S2, where S2 / S1 ≥ 0.5. For example, S2 / S1 may be 0.5, 0.8, 1, and so on. With this arrangement, the ratio of the surface area S2 of the silencer 150 to the surface area S1 of the second housing 120 within this range can ensure noise reduction. It is understood that the maximum value of S2 can be equal to S1.

[0043] In the embodiments of the present invention, Figure 1 and Figure 2The fan assembly 140 can be partially located in the first box 111 and partially located in the second box 121. The fan assembly 140 can have a length D, and the portion of the fan assembly 140 located in the first box 111 can have a length D3, where D3 / D ≥ 0.5. This arrangement provides ample installation space, shortens the distance between the fan assembly 140 and the smoke inlet 112 of the range hood 10, improves smoke extraction efficiency, and reduces noise. It is understood that the portion of the fan assembly 140 located in the second box 121 can have a length D4, where D4 / D ≥ 0.5.

[0044] In the embodiment of the present utility model, again referring to Figure 1 and Figure 2 , the fan assembly 140 may have an air inlet 141. The first box body 110 may have a front panel 113. An angle α may be formed between the plane where the air inlet 141 is located and the plane where the front panel 113 is located, and the angle α may be 0° to 50°. For example, α may be 0°, 30°, 50°, and so on. It is understandable that the smoke inlet 112 may be located on the front panel 113, and an angle α may be formed between the plane where the air inlet 141 is located and the plane where the smoke inlet 112 is located. In this way, the corner between the smoke inlet 112 on the front panel 113 and the air inlet 141 of the fan assembly 140 is reduced, the smoking efficiency is improved, and the noise is reduced.

[0045] In the embodiment of the present utility model, once again referring to Figure 1 and Figure 2 The first housing 110 may include a front panel 113. An angle β may be formed between the plane where the central axis PP of the fan assembly 140 is located and the plane where the front panel 113 is located. The angle β may be between 40° and 90°. For example, β may be 40°, 60°, 90°, and so on. With this arrangement, the fan assembly 140 is tilted or perpendicularly arranged relative to the front panel 113, which reduces the smoking resistance to the smoke. Moreover, within the range of this angle β, a reasonable and flexible selection can be made according to the actual smoking situation, which is conducive to standardized production.

[0046] Specifically, smoke enters from the smoke inlet 112 and can be quickly sucked into the air inlet 141 of the fan assembly 140 and then discharged through the air outlet of the fan assembly 140. In the process of smoke entering the air inlet 141, a general range hood causes part of the smoke to form a vortex between the second box body and the fan assembly, thereby generating noise. However, the range hood 10 provided by the present invention has a silencer 150 provided on the inner wall of the second box body 120, and a first end 162 of the fixing member 160 is inserted into the gap 124 between the folded section 123 and the main section 122 of the second box body 120. The second end 163 is fixed by a fastener 170 such as a screw, so that the silencer 150 is clamped between the fixing member 160 and the main body section 122, and a fixing section 165 is further extended from the second end 163 of the fixing member 160 toward the main body section 122. The end face of the silencer 150 is limited by the fixing section 165, so that the silencer 150 has high stability, avoiding the silencer 150 from shaking or falling when the smoke flow rate is too fast or there is too much smoke, and the silencer 150 absorbs the noise generated between the second box body 120 and the fan assembly 140, thereby reducing the noise.

[0047] 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", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They 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. Therefore, they 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 outline of each component itself.

[0048] For ease of description, area-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 figures and other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figures, but also different orientations in use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "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". Thus, the exemplary term "above" may include both the orientations "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 document is intended to include all of these situations.

[0049] 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, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0050] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0051] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, those skilled in the art will appreciate that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A range hood, characterized in that: It includes a first box body, a second box body, a fan assembly and a silencer; The first box body is enclosed to form a first box with an open top; The second box is connected to the upper part of the first box and is arranged around the top opening to form a second box. The second box and the first box are connected through the top opening to form a connecting cavity. The fan assembly is located in the connecting cavity. The muffler is arranged on the inner wall of the second box. Wherein, the projection of the silencer toward the plane where the top opening is located forms an enclosed area, and the projection of the fan assembly toward the plane where the top opening is located is located within the enclosed area.

2. The range hood according to claim 1, characterized in that: The second box body is connected with a fixing piece, and the silencer is fixed to the inner wall of the second box body through the fixing piece.

3. The range hood according to claim 2, characterized in that: The second box body includes a main body section and a folded section, the folded section is folded back from one end of the main body section away from the first box body, a gap is formed between the folded section and the main body section, the fixing member has a first end clamped into the gap, and the silencer is clamped between the main body section and the fixing member.

4. The range hood according to claim 3, characterized in that: The gap size is D1, and D1 is 0.5 mm to 1.5 mm.

5. The range hood according to claim 4, characterized in that: The fixing member has a thickness D2, and D1≤D2.

6. The range hood according to claim 3, characterized in that: The fixing member has a second end away from the first end, and the second end is fixed to the body segment by a fastener.

7. The range hood according to claim 6, characterized in that: A fixing section is extended from the second end toward the main body section, and the fixing section abuts against an end surface of the muffler.

8. The range hood according to claim 1, characterized in that: The second box has a surface area S1, the silencer has a surface area S2, and S2 / S1≥0.

5.

9. The range hood according to claim 1, characterized in that: The fan assembly is partially located in the first box and partially located in the second box. The fan assembly has a length D, and the portion of the fan assembly located in the first box has a length D3, where D3 / D≥0.

5.

10. The range hood according to claim 1, characterized in that: The fan assembly has an air inlet, the first box body has a front panel, an angle α is formed between a plane where the air inlet is located and a plane where the front panel is located, and the angle α is 0° to 50°.

11. The range hood according to claim 1, characterized in that: The first box body has a front panel, and an angle β is formed between a plane where the central axis of the fan assembly is located and a plane where the front panel is located, and the angle β is 40° to 90°.

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