Upper baffle assembly and range hood

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to an upper baffle assembly and a range hood. The upper baffle assembly comprises an upper baffle, a reinforcing plate, a noise reduction plate and a sound absorption plate. The reinforcing plate is arranged on the inner side of the upper baffle. The noise reduction plate is arranged on the side, away from the upper baffle, of the reinforcing plate, and a plurality of filtering holes are formed in the noise reduction plate. And the sound absorption plate is clamped between the noise reduction plate and the reinforcing plate. According to the range hood, the noise reduction plate is arranged, the filtering holes are formed in the noise reduction plate, noise generated during operation of the range hood can enter the noise reduction plate through the filtering holes, the noise is scattered due to the small hole noise elimination principle when passing through the filtering holes, the propagation direction of sound waves is changed, and therefore the propagation distance and intensity of the noise are reduced; furthermore, by arranging a sound absorption plate in the noise reduction plate, noise generated during operation of the range hood can be effectively absorbed, reflection and propagation of the noise are reduced, interference and damage of the noise to a user are reduced, and then the user experience is improved.

Description

Technical Field

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

[0002] Range hoods are widely used electrical appliances in kitchens to exhaust the fumes generated during cooking. The range hood has a smoke collecting chamber and a smoke collecting hood assembly. The smoke collecting hood assembly is arranged at the opening of the smoke collecting chamber. The driving mechanism driving the range hood to operate is located in the smoke collecting chamber. The driving mechanism generates a large noise when driving the range hood to operate. In the prior art, most of the smoke collecting hood assemblies are not provided with a noise reduction structure, resulting in the transmission of noise, which disturbs the user. Utility Model Content

[0003] The utility model aims to provide an upper baffle assembly and a range hood, which can reduce the interference of noise on users and improve user experience.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An upper baffle assembly comprises:

[0006] Upper baffle;

[0007] A reinforcing plate, arranged on the inner side of the upper baffle;

[0008] A noise reduction plate, arranged on a side of the reinforcing plate away from the upper baffle, and the noise reduction plate is provided with a plurality of filtering holes;

[0009] The sound absorbing plate is sandwiched between the noise reduction plate and the reinforcement plate.

[0010] As a preferred technical solution of the upper baffle assembly, the upper baffle, the reinforcing plate and the noise reduction plate are detachably connected via a connecting assembly.

[0011] As a preferred technical solution for the upper baffle assembly, the connecting assembly includes a clamping component, which is arranged on the inner side of the upper baffle, and is provided with a hook. The noise reduction plate is provided with a clamping hole, and the reinforcing plate is provided with a first avoidance hole. The hook passes through the first avoidance hole and is clamped in the clamping hole.

[0012] As a preferred technical solution for the upper baffle assembly, the connecting assembly also includes a fastener, a first fixing hole is provided on the clamping member, a second fixing hole is provided on the noise reduction plate, and a third fixing hole is provided on the reinforcing plate, and the fastener fastens the clamping member, the noise reduction plate and the reinforcing plate through the first fixing hole, the second fixing hole and the third fixing hole.

[0013] As a preferred technical solution for the upper baffle assembly, an extension piece is provided on the clamping part, the first fixing hole is provided on the extension piece, a second avoidance hole is provided on the noise reduction plate, and the extension piece passes through the first avoidance hole and the second avoidance hole in sequence and then presses against the noise reduction plate.

[0014] As a preferred technical solution of the upper baffle assembly, the number of the clamping parts is two, and the two clamping parts are spaced apart and distributed along the length direction of the upper baffle.

[0015] As a preferred technical solution of the upper baffle assembly, the clamping member and the upper baffle are connected by bonding.

[0016] As a preferred technical solution of the upper baffle assembly, a protrusion is provided on a side of the clamping member facing the upper baffle, and the protrusion abuts against the upper baffle.

[0017] As a preferred technical solution of the upper baffle assembly, the protrusion is also configured to allow a gap to exist between the reinforcing plate and the upper baffle.

[0018] A range hood, characterized in that it comprises an upper baffle assembly as described in any of the above schemes, and also comprises a smoke collecting plate, a smoke inlet plate, a connecting rod mechanism and a linkage mechanism, wherein the upper baffle assembly is connected to the smoke collecting plate via the connecting rod mechanism, and the upper baffle assembly is connected to the smoke inlet plate via the linkage mechanism.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides an upper baffle assembly, including an upper baffle, a reinforcement plate, a noise reduction plate and a sound absorbing plate, wherein the reinforcement plate is arranged on the inner side of the upper baffle; the noise reduction plate is arranged on the side of the reinforcement plate away from the upper baffle, and a plurality of filter holes are arranged on the noise reduction plate; and the sound absorbing plate is sandwiched between the noise reduction plate and the reinforcement plate. By arranging the noise reduction plate and arranging the filter holes on the noise reduction plate, the noise generated when the range hood is running can enter the noise reduction plate through the filter holes, and when the noise passes through the filter holes, it will be scattered due to the small hole sound elimination principle, resulting in a change in the propagation direction of the sound wave, thereby reducing the propagation distance and intensity of the noise; further, by arranging the sound absorbing plate in the noise reduction plate, the noise generated by the pneumatic and mechanical vibrations when the range hood is running can be effectively absorbed, and the reflection and propagation of the noise can be reduced, thereby reducing the interference and harm of the noise to the user, and thus improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a range hood in a non-working state provided by an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the working state of the range hood provided by the embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of an upper baffle assembly provided by an embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the upper baffle and the clamping member involved in the embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of a partially exploded structure of an upper baffle assembly provided in an embodiment of the utility model;

[0026] Figure 6 is a side sectional view of an upper baffle assembly provided by an embodiment of the utility model;

[0027] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle.

[0028] In the figure:

[0029] 10. Box body; 20. Smoke hood assembly; 21. Upper baffle assembly; 211. Upper baffle; 212. Reinforcement plate; 2121. First avoidance hole; 2122. Third fixing hole; 213. Noise reduction plate; 2131. Filter hole; 2132. Clamp hole; 2133. Second avoidance hole; 2134. Second fixing hole; 214. Sound absorbing plate; 215. Clamping piece; 2151. Clamping hook; 2152. Extension piece; 2152a. First fixing hole; 2153. Protrusion; 216. Keyboard cover; 22. Smoke collecting plate; 23. Smoke inlet plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do 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 the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] like Figures 1 to 7As shown, the utility model provides a range hood, comprising a housing 10, a smoke hood assembly 20, a connecting rod mechanism, a linkage mechanism and a driving member, wherein the housing 10 has a smoke collecting chamber; the smoke hood assembly 20 is arranged at the opening of the smoke collecting chamber, the smoke hood assembly 20 comprises an upper baffle assembly 21, a smoke collecting plate 22 and a smoke inlet plate 23, the upper baffle assembly 21 is hinged to the upper end of the housing 10 through an upper rotating shaft, the smoke collecting plate 22 and the upper baffle assembly 21 are connected through a connecting rod mechanism, the smoke inlet plate 23 is hinged to the lower end of the housing 10 through a lower rotating shaft, and the smoke inlet plate 23 and the upper baffle assembly 21 are connected through a linkage mechanism; the driving member is drivingly connected to a connecting rod in the connecting rod mechanism, the driving member can drive the upper baffle assembly 21 and the smoke collecting plate 22 to rotate through the connecting rod mechanism, and the upper baffle assembly 21 can drive the smoke inlet plate 23 to rotate through the linkage mechanism. The driving member can drive the smoke hood assembly 20 to switch between a closed state and an open state. Refer to Figure 1 When the smoke collecting hood assembly 20 is in the closed state, the upper baffle assembly 21, the smoke collecting plate 22 and the smoke inlet plate 23 are all in a vertical state, and the upper baffle assembly 21 and the smoke collecting plate 22 are arranged side by side in the vertical direction, and the smoke inlet plate 23 is located on the inner side of the upper baffle assembly 21 and the smoke collecting plate 22. Figure 2 When the smoke collecting hood assembly 20 is in the open state, the upper baffle assembly 21 and the smoke collecting plate 22 rotate open around the upper rotating shaft, and the smoke inlet plate 23 rotates open around the lower rotating shaft, and a smoke collecting area is formed between the smoke collecting plate 22 and the smoke inlet plate 23.

[0038] The driving member, the connecting rod mechanism, the linkage mechanism, the smoke collecting plate 22 and the smoke inlet plate 23 adopt the existing technology and will not be described in detail here. This embodiment only introduces the upper baffle assembly 21.

[0039] Reference Figures 3 to 7The upper baffle assembly 21 includes an upper baffle 211, a reinforcement plate 212, a noise reduction plate 213 and a sound absorbing plate 214. The upper baffle 211 is hinged to the upper end of the box body 10 through an upper rotating shaft. The reinforcement plate 212 is arranged on the side of the upper baffle 211 facing the smoke collecting chamber, that is, the reinforcement plate 212 is arranged on the inner side of the upper baffle 211; the noise reduction plate 213 is arranged on the side of the reinforcement plate 212 away from the upper baffle 211, and a plurality of filtering holes 2131 are arranged on the noise reduction plate 213; the sound absorbing plate 214 is sandwiched between the noise reduction plate 213 and the reinforcement plate 212. By providing a noise reduction plate 213 and providing a filter hole 2131 on the noise reduction plate 213, the noise generated when the range hood is running can enter the noise reduction plate 213 through the filter hole 2131, and when the noise passes through the filter hole 2131, it will be scattered due to the small hole sound elimination principle, resulting in a change in the propagation direction of the sound wave, thereby reducing the propagation distance and intensity of the noise; further, by providing a sound absorbing plate 214 in the noise reduction plate 213, the noise generated by the pneumatic and mechanical vibrations when the range hood is running can be effectively absorbed, reducing the reflection and propagation of the noise, thereby reducing the interference and harm of the noise to the user, and thus improving the user experience. In this embodiment, the sound absorbing plate 214 is sound absorbing cotton, but it is not limited to this.

[0040] The upper baffle plate 211, the reinforcing plate 212 and the noise reduction plate 213 are detachably connected through a connecting assembly. Specifically, the connecting assembly includes a clamping member 215 and a fastener. The clamping member 215 is arranged on the inner side of the upper baffle plate 211. The clamping member 215 is provided with a hook 2151 and a first fixing hole 2152a. The noise reduction plate 213 is provided with a clamping hole 2132 and a second fixing hole 2134. The reinforcing plate 212 is provided with a first avoidance hole 2121 and a third fixing hole 2122. The hook 2151 passes through the first avoidance hole 2121 and is clamped in the clamping hole 2132. The fastener fastens the clamping member 215, the noise reduction plate 213 and the reinforcing plate 212 through the first fixing hole 2152a, the second fixing hole 2134 and the third fixing hole 2122. Preferably, the clamping member 215 is provided with an extension piece 2152, the first fixing hole 2152a is provided on the extension piece 2152, the noise reduction plate 213 is provided with a second avoidance hole 2133, and the extension piece 2152 passes through the first avoidance hole 2121 and the second avoidance hole 2133 in sequence and then presses against the noise reduction plate 213, that is, the first fixing hole 2152a, the second fixing hole 2134 and the third fixing hole 2122 are distributed in sequence from top to bottom. By providing the extension piece 2152 on the clamping member 215 and pressing the extension piece 2152 against the noise reduction plate 213, the connection between the clamping member 215, the noise reduction plate 213 and the reinforcing plate 212 can be made more stable.

[0041] The clamping member 215 and the upper baffle 211 are connected by bonding, and the connection method is simple and reliable. A protrusion 2153 is provided on the side of the clamping member 215 facing the upper baffle 211, and the protrusion 2153 abuts against the upper baffle 211. By providing the protrusion 2153, there is a glue position space required for gluing between the clamping member 215 and the upper baffle 211, thereby making the bonding connection between the clamping member 215 and the upper baffle 211 more convenient and more stable after bonding. In addition, the protrusion 2153 is also configured to allow a gap L to exist between the reinforcing plate 212 and the upper baffle 211. The gap L is generally greater than 0 and less than 2 mm. The gap forms an air spacing layer, which effectively isolates some vibrations and noise.

[0042] The upper baffle assembly 21 further includes a keypad and a keypad cover 216. The reinforcing plate 212 is provided with mounting holes, the keypad is installed in the mounting holes, the noise reduction plate 213 and the sound absorbing plate 214 are provided with through holes facing the mounting holes, the keypad cover 216 is provided on the side of the keypad away from the upper baffle 211 through the through hole cover, so that the keypad abuts against the upper baffle 211, and the keypad cover 216 is connected to the reinforcing plate 212. The functions of the keypad and the keypad cover 216 are all prior art and will not be described in detail here.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An upper baffle assembly, characterized in that: include: Upper baffle (211); A reinforcing plate (212) disposed on the inner side of the upper baffle plate (211); A noise reduction plate (213) is arranged on a side of the reinforcing plate (212) away from the upper baffle plate (211), and a plurality of filtering holes (2131) are arranged on the noise reduction plate (213); The sound absorbing plate (214) is sandwiched between the noise reduction plate (213) and the reinforcing plate (212).

2. The upper baffle assembly according to claim 1, characterized in that: The upper baffle plate (211), the reinforcing plate (212), and the noise reduction plate (213) are detachably connected via a connecting assembly.

3. The upper baffle assembly according to claim 2, characterized in that: The connecting assembly comprises a clamping member (215), the clamping member (215) being arranged on the inner side of the upper baffle (211), the clamping member (215) being provided with a clamping hook (2151), the noise reduction plate (213) being provided with a clamping hole (2132), the reinforcing plate (212) being provided with a first avoidance hole (2121), the clamping hook (2151) being inserted through the first avoidance hole (2121) and then clamped in the clamping hole (2132).

4. The upper baffle assembly according to claim 3, characterized in that: The connection assembly also includes a fastener, the clamping member (215) is provided with a first fixing hole (2152a), the noise reduction plate (213) is provided with a second fixing hole (2134), and the reinforcing plate (212) is provided with a third fixing hole (2122), and the fastener fastens the clamping member (215), the noise reduction plate (213) and the reinforcing plate (212) through the first fixing hole (2152a), the second fixing hole (2134) and the third fixing hole (2122).

5. The upper baffle assembly according to claim 4, characterized in that: The clamping member (215) is provided with an extension piece (2152), the first fixing hole (2152a) is provided on the extension piece (2152), the noise reduction plate (213) is provided with a second avoidance hole (2133), and the extension piece (2152) passes through the first avoidance hole (2121) and the second avoidance hole (2133) in sequence and then presses against the noise reduction plate (213).

6. The upper baffle assembly according to any one of claims 3 to 5, characterized in that: The number of the clamping parts (215) is two, and the two clamping parts (215) are spaced apart and distributed along the length direction of the upper baffle (211).

7. The upper baffle assembly according to any one of claims 3 to 5, characterized in that: The clamping member (215) and the upper baffle (211) are connected by bonding.

8. The upper baffle assembly according to claim 7, characterized in that: A protrusion (2153) is provided on a side of the clamping member (215) facing the upper baffle plate (211), and the protrusion (2153) abuts against the upper baffle plate (211).

9. The upper baffle assembly according to claim 8, characterized in that: The protrusion (2153) is also configured to allow a gap to exist between the reinforcing plate (212) and the upper baffle plate (211).

10. A range hood, characterized in that: It comprises an upper baffle assembly as described in any one of claims 1 to 9, and also comprises a smoke collecting plate (22), a smoke inlet plate (23), a connecting rod mechanism and a linkage mechanism, wherein the upper baffle assembly is connected to the smoke collecting plate (22) via the connecting rod mechanism, and the upper baffle assembly is connected to the smoke inlet plate (23) via the linkage mechanism.

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