Exhaust fume collecting hood for side suction type range hood and side suction type range hood
By rationally designing the smoke collection hood of the side-suction range hood, and adopting an inclined wall structure and pressure stabilizing chamber design, the problems of bumping your head while holding the pot and smoke leakage have been solved, improving the smoke extraction effect and user experience.
Patent Information
- Application Number
- CN202420714816.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-08
AI Technical Summary
Existing side-suction range hoods have problems such as bumping your head when you put a pot on the stove, creating a feeling of spatial oppression, and the smoke inlet is far from the smoke source, making it easy for smoke to escape.
Design a smoke collection hood with a front side wall that slopes backward from top to bottom, including upper and lower inclined walls and a vertical wall. The angle and length of the inclined walls are reasonably limited to form a pressure stabilizing chamber and a smoke collection recess. The smoke baffle is rotatable, and the fan system is connected to the smoke collection hood.
It improves the problem of bumping your head while holding a pot, reduces the feeling of being cramped in the space, enhances the smoke collection effect, reduces smoke escape, and achieves fast smoke extraction and exhaust.
Smart Images
Figure CN222210460U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of range hoods, in particular to a smoke collecting hood for a side-suction range hood and the side-suction range hood. Background Art
[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Conventional range hoods are mainly divided into top-suction range hoods and side-suction range hoods. The smoke outlet of a top-suction range hood is located directly above the stove, and the smoke is quickly sucked in when it rises close to the smoke outlet. This type of range hood has a large depth, and the panel height is close to the forehead, so there is generally a problem of hitting the forehead. The smoke outlet of a side-suction range hood is located diagonally above the stove, and the smoke outlet is close to the stove. The smoke is quickly sucked into the smoke outlet when it starts to rise. This type of range hood generally has a rotatable smoke-collecting flap, which can be turned open to extract smoke. After the smoke is extracted and the range hood is turned off, the smoke-collecting flap automatically closes. For example, the Chinese utility model patent application with the authorization announcement number CN203478381U discloses this side-suction range hood.
[0003] For side-suction range hoods, in order to enhance the smoke collection effect, the structure of the smoke collection hood has also been modified. For example, the application number CN202320536844.2 (authorization announcement number: CN219828918U) discloses a side-suction range hood, in which a fixed panel located below the smoke inlet is provided on the front side of the range hood housing, and an obtuse angle is formed between the front side of the smoke collection flap and the front side of the fixed panel, so that when the smoke collection flap is opened, the external oil smoke can be guided to the smoke inlet by the fixed panel. The value of the angle A between the front side of the smoke collection flap and the front side of the fixed panel is 150°-175°. When the smoke collection flap is closed, the smoke collection flap and the fixed panel are not in the same plane, and a concave area is formed between the two that is concave toward the inside of the housing. After the smoke collection flap is opened, a larger smoke collection area can be formed. Under the diversion effect of the fixed panel, the oil smoke in a larger space range can be introduced into the smoke inlet, and then discharged by the range hood. It has an excellent effect in gathering oil smoke and can further improve the efficiency of oil smoke absorption without changing the power.
[0004] However, the range hood in the above patent application still has certain shortcomings: first, the upper and lower height of the range hood casing (smoke hood) in the patent application is greater than the front and rear length, and the length of the fixed panel of the front side wall of the casing is close to the length of the smoke flap, which makes the overall upper and lower dimensions of the casing larger, and it is easy to cause the pot blocking head problem, and compared with conventional side-suction range hoods, the concave degree of the front part of the casing is limited, so for users, the sense of space oppression is not effectively improved. Secondly, the smoke inlet is located in the upper front area of the range hood, which is far away from the smoke source, and it is easy to cause smoke leakage.
[0005] Therefore, the existing range hood still needs further improvement. Summary of the Invention
[0006] The first technical problem to be solved by the present utility model is to provide a smoke collecting hood for a side suction range hood with a more reasonable structural design, which can effectively improve the problem of blocking the pot and the sense of space compression for users, in view of the current situation of the prior art.
[0007] The second technical problem to be solved by the present utility model is to provide a side suction range hood applying the above-mentioned smoke collecting hood, in view of the current situation of the prior art.
[0008] The technical solution adopted by the present utility model to solve the first technical problem is as follows: A smoke collecting hood for a side suction range hood, including a hood body, the hood body includes a front side wall that is inclined backward from top to bottom as a whole, the front side wall includes an upper inclined wall and a lower inclined wall that are connected in sequence from top to bottom, the included angle formed by the upper inclined wall relative to the vertical plane is greater than the included angle formed by the lower inclined wall relative to the vertical plane, the overall vertical dimension of the hood body is denoted as H, the overall front-back dimension is denoted as L, and the length of the lower inclined wall is denoted as M. Among them, the three satisfy the condition: H < M < L.
[0009] As an improvement, the top of the front side wall further includes a vertical wall, the upper edge of the upper inclined wall is connected to the lower edge of the vertical wall, the vertical dimension of the vertical wall is denoted as K, where K < H < M < L. Taking the horizontal plane passing through the straight line connecting the upper edge of the upper inclined wall and the lower edge of the vertical wall as a reference plane, a pressure stabilizing cavity is formed in the upper region of the inner cavity of the smoke collecting hood with respect to the reference plane. After the oil fume is inhaled into the smoke collecting cavity, the disordered air flow can enter the upper fan more smoothly through the pressure stabilizing cavity.
[0010] The height dimension of the pressure stabilizing cavity should be reasonably selected. If the height dimension of the pressure stabilizing cavity is too large, it will seriously squeeze the kitchen space and increase the sense of space depression. If the height dimension of the pressure stabilizing cavity is too small, the flow stabilizing effect of the pressure stabilizing cavity is not ideal. Therefore, preferably, the value range of the vertical dimension K of the vertical wall is: 30 cm ≤ K ≤ 40 cm.
[0011] In order to ensure the oil guiding effect, the included angle formed by the upper inclined wall relative to the vertical plane is denoted as A, where 75° ≤ A ≤ 80°. The design of the above-mentioned inclination angle can ensure that the space part above the upper inclined side wall of the smoke collecting hood is as thin as possible, reducing the occupation of the smoke collecting space.
[0012] In order to make reasonable use of the space above the upwardly inclined side wall of the smoke collecting hood, the hood body further includes a left side wall and a right side wall opposite to each other left and right, and a top plate extending horizontally. An accommodation chamber for accommodating the control switch assembly is defined among the vertical wall, the upwardly inclined wall, the left side wall, the right side wall and the top plate. An operation area electrically connected to the control switch assembly is correspondingly provided on the front wall surface of the vertical wall.
[0013] In order to ensure the oil fume suction effect, an air inlet is further opened on the downwardly inclined wall.
[0014] In order to improve the smoke gathering effect and reduce the problem of smoke leakage, a part of the downwardly inclined wall is recessed towards the inside of the smoke collecting hood to form a smoke gathering concave area, and the air inlet is opened at the smoke gathering concave area.
[0015] In order to further improve the smoke gathering effect, it further includes a smoke baffle rotatably arranged on the main body of the hood body and capable of opening and closing the air inlet.
[0016] As an improvement, the hood body includes a top plate extending horizontally, and the left and right sides of the smoke baffle are connected to the top plate through hinge mechanisms.
[0017] The technical solution adopted by the present utility model to solve the second technical problem is: a side suction range hood, including a smoke collecting hood, and the smoke collecting hood adopts the smoke collecting hood for the side suction range hood as described above.
[0018] As an improvement, it further includes a fan frame and a fan system arranged in the fan frame. The fan frame is connected to the top of the smoke collecting hood and is communicated with the inner cavity of the smoke collecting hood.
[0019] Compared with the prior art, the advantages of the present utility model are: by reasonably defining the upper and lower dimension H, the front and rear dimension L of the smoke collecting hood, and the length M of the downwardly inclined wall of the front side wall, specifically: H < M < L. This structural design can make the overall height of the smoke collecting hood smaller, effectively improve the problem of blocking the pot and the user's sense of space oppression. And the structural design that the included angle formed by the upwardly inclined wall relative to the vertical plane is greater than the included angle formed by the downwardly inclined wall relative to the vertical plane makes the smoke collecting hood thinner and the whole machine more compact. At the same time, the design that the length M of the downwardly inclined wall of the front side wall is greater than the upper and lower dimension H of the smoke collecting hood can ensure that the smoke collecting hood has a larger smoke collecting cavity volume, and the whole smoke collecting cavity can also be closer to the fan, shortening the path of the oil fume from the air inlet to the fan, and achieving the purpose of fast suction and fast discharge. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional structural schematic diagram of the side suction range hood according to the embodiment of the present utility model;
[0021] Figure 2 It is a left view of the side suction range hood according to the embodiment of the present utility model;
[0022] Figure 3 It is a cross-sectional view of the side-suction range hood according to an embodiment of the utility model cut along the front-to-back direction. DETAILED DESCRIPTION
[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0024] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.
[0025] Figure 1-Figure 3 The utility model shows a smoke collecting hood for a side-suction range hood and a preferred embodiment of the side-suction range hood. The range hood includes a casing and a centrifugal fan arranged in the casing. The casing generally includes a fan frame 30 and a smoke collecting hood arranged at the bottom of the fan frame 30. The inner cavity of the fan frame 30 is connected with the inner cavity of the smoke collecting hood. An air suction port (not shown) is provided on the front side wall of the smoke collecting hood, and external smoke can enter the smoke collecting hood through the air suction port. The centrifugal fan is arranged in the fan frame 30. When the centrifugal fan is running, negative pressure is generated, and external oil smoke can be sucked into the smoke collecting hood through the air suction port. An oil net is also provided at the air suction port of the smoke collecting hood for filtering oil smoke. An oil cup 40 is provided at the bottom of the smoke collecting hood. The oil cup 40 is in the shape of a long strip extending left and right, and is used to receive oil stains flowing down from the smoke collecting hood. The front part of the smoke hood is also provided with a smoke baffle 20 that can be deflected forward and backward relative to the smoke hood. The smoke baffle 20 is connected to the main body of the smoke hood through a hinge motion mechanism. Specifically, it can be deflected forward to open the above-mentioned air intake port and deflected backward to block and close the above-mentioned air intake port. The hinge motion mechanism includes an electric push rod 21 and two sets of hinges 22. The two sets of hinges 22 are respectively connected to the left and right sides of the smoke baffle 20, wherein the hinge 22 is U-shaped as a whole, with a first end connected to the back of the smoke baffle 20 and the other end rotatably connected to the front of the top plate 13 of the smoke hood. The main body of the electric push rod 21 is rotatably connected to the rear of the top plate 13 of the smoke hood, and the end of its telescopic rod is rotatably connected to one of the hinges 22. When the electric push rod 21 is extended and retracted, it can drive the smoke baffle 20 to deflect forward and backward, opening and closing the air inlet 1131.
[0026] The smoke collecting hood includes a hood body 10, and the hood body 10 includes a rear side wall 12, a front side wall, a left side wall 14, a right side wall 15 and a top plate 13. The rear side wall 12 of the hood body 10 is vertically extended so that the range hood can be installed close to the wall. The left side wall 14 and the rear side wall 12 are also vertically extended and are opposite in the left-right direction. The front side wall is inclined backward from top to bottom as a whole and includes a vertical wall 111, an upper inclined wall 112 and a lower inclined wall 113 which are connected in sequence from top to bottom. The upper edge of the upper inclined wall 112 is connected to the lower edge of the vertical wall 111, and both the upper inclined wall 112 and the lower inclined wall 113 are inclined backward from top to bottom. The angle formed by the upper inclined wall 112 relative to the vertical plane is greater than the angle formed by the lower inclined wall 113 relative to the vertical plane. An air inlet 1131 is opened on the lower inclined wall 113. In order to improve the smoke collecting effect and reduce the problem of smoke leakage, a part of the lower inclined wall 113 is recessed toward the inside of the smoke collecting hood to form a smoke collecting recessed area 1130, and the air inlet 1131 is opened at the smoke collecting recessed area 1130. In this way, the air inlet 1131 can be closer to the smoke source. After the smoke is generated, it is sucked in on the inclined surface closest to it. The angle formed by the upper inclined wall 112 relative to the vertical plane is denoted as A, where 75° ≤ A ≤ 80°. This angle design can, on the one hand, ensure the oil guiding effect, and on the other hand, ensure that the space part above the upper inclined side wall of the smoke collecting hood is as thin as possible, reducing the occupation of the smoke collecting space.
[0027] The vertical wall 111 is a strip-shaped plate with equal upper and lower dimensions, and the upper and lower dimensions of the vertical wall 111 are denoted as K. The overall upper and lower dimensions of the smoke collecting hood are denoted as H, the overall front and rear dimensions of the smoke collecting hood are denoted as L, and the length of the lower inclined wall 113 is denoted as M. Among them, the above parameters satisfy the condition: K < H < M < L. This design can make the hood body 10 have a smaller height, and the angle design of the upper inclined wall 112 and the lower inclined wall 113 also makes the hood body 10 thinner and the whole machine more compact. Among them, the design of the parameter M > H ensures that the hood body 10 has a larger smoke collecting cavity volume, and the whole smoke collecting cavity is close to the fan, shortening the path of the smoke from the air inlet 1131 to the fan and realizing fast suction and fast discharge.
[0028] See Figure 2, the horizontal plane of the straight line connecting the upper edge of the upper inclined wall 112 and the lower edge of the vertical wall 111 is used as the reference plane S. The inner cavity of the smoke hood forms a pressure stabilizing chamber 101 in the area above the reference plane S. After the oil smoke is sucked into the smoke collecting chamber, it can pass through the pressure stabilizing chamber 101 to make the turbulent airflow enter the upper fan more smoothly. The height dimension of the pressure stabilizing chamber 101 should be reasonably selected. If the height dimension of the pressure stabilizing chamber 101 is too large, it will seriously squeeze the kitchen space and increase the sense of space oppression. If the height dimension of the pressure stabilizing chamber is too large, the stabilizing effect of the pressure stabilizing chamber is not ideal. Therefore, the value range of the upper and lower dimensions K of the vertical wall 111 is: 30cm≤K≤40cm. The vertical wall 111, the upper inclined wall 112, the left side wall 14, the right side wall 15 and the corresponding parts of the top plate 13 of the cover body 10 define a receiving chamber 16 for accommodating the control switch assembly 17. The receiving chamber 16 is equivalent to a "forehead part" protruding forward from the cover body 10. The front wall surface of the vertical wall 111 may be provided with an operating area 170 electrically connected to the control switch assembly 17. The operating area may be a touch screen for touch operation, that is, a mechanical button or knob, etc. The control switch assembly 17 is installed in the protruding "forehead part". With the above-mentioned reasonable size layout of the "forehead part", the forehead appears very small and can just accommodate the switch assembly, which can ensure the ultra-thin design of the forehead part and reduce the occupation of the smoke collection space.
[0029] The inner cavity of the smoke hood forms a smoke inlet cavity 102 in the area below the reference plane S. The above parameter design makes the cross-sectional area of the pressure stabilizing cavity 101 larger than the cross-sectional area of the smoke inlet cavity 102 at any point. Specifically, the parameters of the hood body 10 are: H
Claims
1. A smoke collecting hood for a side-suction range hood, comprising a hood body (10), the hood body (10) comprising a front side wall that is inclined from top to bottom and backward as a whole, the front side wall comprising an upper inclined wall (112) and a lower inclined wall (113) that are connected in sequence up and down, the angle formed by the upper inclined wall (112) relative to a vertical plane being greater than the angle formed by the lower inclined wall (113) relative to the vertical plane, characterized in that: The overall upper and lower dimensions of the cover body (10) are recorded as H, the overall front and rear dimensions are recorded as L, and the length of the lower inclined wall (113) is recorded as M, wherein the three meet the conditions: H <M<L。 2. The smoke collecting hood for a side-suction range hood according to claim 1, characterized in that: The top of the front side wall also includes a vertical wall (111), the upper edge of the upper inclined wall (112) is connected to the lower edge of the vertical wall (111), and the upper and lower dimensions of the vertical wall (111) are recorded as K, wherein K <H<M<L。 3. The smoke collecting hood for a side-suction range hood according to claim 2, characterized in that: The upper and lower dimensions K of the vertical wall (111) have a value range of 30 cm ≤ K ≤ 40 cm.
4. The smoke collecting hood for a side-suction range hood according to claim 1, characterized in that: The angle formed by the upper inclined wall (112) relative to the vertical plane is recorded as A, wherein 75°≤A≤80°.
5. The smoke collecting hood for a side-suction range hood according to claim 2, characterized in that: The cover body (10) further includes a left side wall (14) and a right side wall (15) opposite to each other and a horizontally extending top plate (13); a receiving chamber (16) for accommodating a control switch assembly is defined between the vertical wall (111), the upper inclined wall (112), the left side wall (14), the right side wall (15) and the top plate (13); and an operating area (170) electrically connected to the control switch assembly is correspondingly provided on the front wall surface of the vertical wall (111).
6. The fume collecting hood for a side-suction range hood according to any one of claims 1 to 5, characterized in that: An air inlet (1131) is also provided on the lower inclined wall (113).
7. The smoke collecting hood for a side-suction range hood according to claim 6, characterized in that: A portion of the lower inclined wall (113) is recessed toward the interior of the smoke collecting hood to form a smoke collecting recessed area (1130), and the air inlet (1131) is opened at the smoke collecting recessed area (1130).
8. The smoke collecting hood for a side-suction range hood according to claim 7, characterized in that: It also includes a smoke shield (20) that is rotatably mounted on the main body of the cover body (10) and is capable of opening and closing the air inlet (1131).
9. The fume collecting hood for a side-suction range hood according to claim 8, characterized in that: The cover body (10) comprises a horizontally extending top plate (13), and the left and right sides of the smoke baffle (20) are connected to the top plate (13) via a hinge mechanism.
10. A side-suction range hood, comprising a fume collecting hood, characterized in that: The fume hood is the fume hood for a side-suction range hood as claimed in any one of claims 1 to 9.
11. A side-suction range hood, characterized by: It also includes a fan frame (30) and a fan system arranged in the fan frame (30); the fan frame (30) is connected to the top of the smoke hood and communicates with the inner cavity of the smoke hood.