Smoke collecting hood of range hood and range hood

Abstract

The utility model relates to the field of kitchen appliances, and discloses an exhaust fume collecting hood of a range hood and the range hood. The exhaust fume collecting hood is provided with an exhaust fume collecting cavity, the top of the exhaust fume collecting hood is provided with an opening for communicating the air bellow with the exhaust fume collecting cavity, the exhaust fume collecting hood comprises a connecting piece and a first top plate and a second top plate which are arranged at intervals and fixedly connected with the left and right ends of the connecting piece respectively, and the first top plate, the connecting piece and the second top plate jointly define the opening; a containing groove is formed in the connecting piece, and a groove hole is formed in the side, away from the smoke collecting cavity, of the containing groove in the front-back direction. According to the scheme, the opening is defined by the first top plate, the connecting piece and the second top plate, so that the cost is reduced; meanwhile, according to the scheme, the connecting piece is improved, so that the oil separation function, the strengthening function and the like are integrated, on one hand, an additional oil separation structure does not need to be arranged, the oil separation effect can be achieved through the connecting piece, and parts are reduced; on the other hand, the overall strength and rigidity of the box body are improved through connection of the connecting piece and the exhaust fume collecting hood, and deformation of the range hood is avoided.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a smoke collection hood and a range hood. Background Technology

[0002] A range hood (also known as a kitchen exhaust fan or cooking hood) is an electrical appliance used in the kitchen to remove fumes, odors, and steam generated during cooking. It can effectively improve kitchen air quality and reduce grease buildup.

[0003] Traditional range hoods typically require a dedicated grease trap for the switch box, but this involves separate installation of the switch box and the grease trap, resulting in numerous components and inconvenience. Some engineers, for ease of installation, install the grease trap outside the switch box before installing the entire switch box into the range hood. However, this method leaves the range hood housing without support, making it prone to loosening due to vibration or external forces, leading to poor overall structural stability of the range hood. Utility Model Content

[0004] The first technical problem solved by this utility model is to provide a smoke collection hood for a range hood, which effectively solves the problem of numerous installation parts and poor stability of smoke collection hoods in related technologies.

[0005] The second technical problem solved by this utility model is to provide a range hood that effectively solves the problem of numerous installation parts and poor stability in related technologies.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A range hood has a smoke collection chamber. The top of the smoke collection hood has an opening for connecting a ventilation box to the smoke collection chamber. The smoke collection hood includes a connector and a first top plate and a second top plate that are spaced apart and fixedly connected to the left and right ends of the connector, respectively. The first top plate, the connector, and the second top plate together form the opening.

[0008] The connector has a receiving groove for accommodating the switch box, and a slot is provided on the side of the receiving groove away from the smoke collection chamber along the front-back direction.

[0009] Compared with the prior art, the smoke collection hood of the range hood described in this utility model has the following beneficial effects:

[0010] This solution utilizes a first top plate, a connector, and a second top plate to form an opening connecting the ventilation box and the smoke collection chamber. Compared to related technologies where a single plate on the top of the smoke collection hood has a through hole, this solution reduces costs. Simultaneously, this solution improves the connector, integrating oil-blocking and reinforcement functions. On one hand, this solution eliminates the need for an additional oil-blocking structure; the connector alone achieves the oil-blocking effect, reducing the number of parts and simplifying the structure and installation process. On the other hand, the connection between the connector and the smoke collection hood enhances the overall strength and rigidity of the enclosure, preventing deformation of the range hood. Furthermore, the connector forms a rigid support, distributing the stress on the top plate, improving the smoke collection hood's resistance to deformation, and reinforcing the connection of the split smoke collection hood, thus improving its structural stability.

[0011] In one embodiment, the connector includes a partition, a connecting top plate, and two connecting side plates. The two connecting side plates are respectively connected to both ends of the partition and extend forward. The partition is the bottom of the receiving groove. The connecting top plate is fixed to the top of the partition and extends forward. The two ends of the connecting top plate are respectively connected to the first top plate and the second top plate.

[0012] In one embodiment, the left and right ends of the connecting top plate are respectively provided with a first flange and a second flange that fold down, and the outer surfaces of the first flange and the second flange are respectively provided with two snap-fit ​​members that extend away from the receiving groove;

[0013] The first top plate and the second top plate are each provided with two snap-fit ​​slots, and the two snap-fit ​​pieces are snapped into the two snap-fit ​​slots one by one.

[0014] In one embodiment, at least one of the connecting side plates is provided with a through port, which communicates with the smoke collection chamber.

[0015] In one embodiment, a first front plate and a second front plate are also included. The first front plate is fixed in front of the first top plate, and the second front plate is fixed in front of the second top plate. The first front plate and the adjacent connecting side plate are fixedly connected, and the second front plate and the adjacent connecting side plate are fixedly connected.

[0016] In one embodiment, the side of the connecting side plate away from the partition is further provided with a connecting flange, the two connecting flanges being parallel to the first front plate and the second front plate respectively, and the two connecting flanges being fixedly connected to the first front plate and the second front plate respectively by fasteners; and / or, the first front plate and the second front plate are respectively connected to the left and right ends of the connecting top plate.

[0017] In one embodiment, the top plate has a downwardly folded third flange on the side away from the partition. The two ends of the third flange are respectively provided with bent top plate connecting ears. The two top plate connecting ears are parallel to the first front plate and the second front plate, respectively. The two top plate connecting ears are fixedly connected to the first front plate and the second front plate by fasteners.

[0018] In one embodiment, the smoke hood further includes a lamp panel, with the first top plate and the second top plate both located above and fixedly connected to the lamp panel, the lamp panel, the first top plate, and the second top plate defining part of the smoke collection cavity; wherein the bottom of the connector is fixedly connected to the upper part of the lamp panel.

[0019] In one embodiment, the rear surface of the connector is provided with a fixing plate that extends into the smoke collection chamber, the fixing plate and the rear surface of the connector forming a slot, and the front plate of the air box is inserted into the slot.

[0020] The second technical problem mentioned above is solved by the following technical solution:

[0021] A range hood includes a fan box and a smoke collection hood as described in the first aspect of this utility model;

[0022] The air box communicates with the smoke collection chamber through the opening and is connected to the first top plate, the connector and the second top plate respectively; the range hood also includes a control panel and a switch box, the switch box is installed on the rear side of the control panel, and the rear side of the control panel is sealed to the connector.

[0023] Compared with the prior art, the range hood of this utility model has the following advantages: This solution utilizes a first top plate, a connector, and a second top plate to form an opening connecting the ventilation box and the smoke collection chamber. Compared to the method of opening a through hole in a single piece of plate at the top of the smoke collection hood in related technologies, this solution achieves cost reduction. Simultaneously, this solution improves the connector, integrating functions such as oil separation and reinforcement. On the one hand, this solution eliminates the need for an additional oil separation structure; the oil separation effect is achieved through the connector, thereby reducing the number of parts and simplifying the structure and installation process. On the other hand, this solution enhances the overall strength and rigidity of the housing through the connection between the connector and the smoke collection hood, thus preventing deformation of the range hood. Furthermore, the connector forms a rigid support, distributing the stress on the top plate, improving the deformation resistance of the smoke collection hood, achieving reinforcement of the split-type smoke collection hood, and improving the structural stability of the smoke collection hood. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the present utility model;

[0026] Figure 2 This is an exploded view of the structure of a range hood according to an embodiment of the present utility model;

[0027] Figure 3 This is a partial structural diagram of a smoke collection hood of a range hood according to an embodiment of the present utility model;

[0028] Figure 4 This is an exploded view of a portion of the structure of the smoke collection hood of a range hood according to an embodiment of the present utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 This is a structural schematic diagram of a connecting component for a range hood according to an embodiment of the present utility model;

[0031] Figure 7 This is a partial cross-sectional view of the connection between the connector and the light panel of a range hood according to an embodiment of the present utility model;

[0032] Figure 8 This is a schematic diagram of the connection between the connector and the light panel in a range hood according to an embodiment of the present utility model;

[0033] Figure 9 yes Figure 8 Enlarged diagram of point B inside.

[0034] Explanation of reference numerals in the attached figures:

[0035] 101. Smoke collection chamber; 102. Opening; 111. First top plate; 112. First front plate; 121. Second top plate; 122. Second front plate; 123. Snap-fit ​​groove; 13. Lamp panel;

[0036] 2. Air box; 3. Connector; 301. Receiving groove; 31. Partition; 311. First mounting plate; 32. Connecting side plate; 321. Cable outlet; 322. Connecting flange; 33. Connecting top plate; 331. First flange; 332. Second flange; 333. Third flange; 334. Top plate connecting lug; 335. Snap-fit ​​component; 4. Fastener; 5. Fixing plate; 51. Slot; 6. Switch box; 7. Control panel. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] The following description, with reference to the accompanying drawings, illustrates a smoke collection hood for a range hood and a range hood incorporating the smoke collection hood.

[0042] like Figures 1 to 9As shown, the range hood according to the first aspect of the present invention has a smoke collection chamber 101. The top of the smoke collection hood has an opening 102 for connecting the ventilation box 2 and the smoke collection chamber 101. The smoke collection hood includes a connector 3 and a first top plate 111 and a second top plate 121 that are spaced apart and fixedly connected to the left and right ends of the connector 3, respectively. The first top plate 111, the connector 3 and the second top plate 121 together form the opening 102.

[0043] The connector 3 has a receiving groove 301 for accommodating the switch box 6. Along the front-back direction, the receiving groove 301 has a slot on the side away from the smoke collection chamber 101.

[0044] The specific structure of the smoke collection hood of the range hood according to an embodiment of this utility model is described below:

[0045] The smoke collection chamber 101 is located inside the smoke collection hood, forming a space for collecting oil fumes. It can be understood that the smoke collection chamber 101 is defined by the first top plate 111, the second top plate 121, and other structural components of the smoke collection hood. The first top plate 111 and the second top plate 121 are spaced apart at both ends of the connector 3, together forming the opening 102 for mounting the air box 2. The first top plate 111 and the second top plate 121 are respectively fixedly connected to the connector 3, forming a sealed boundary at the top of the smoke collection hood to prevent oil fume leakage.

[0046] The connector 3 is an integrated component, with its two ends fixedly connected to the first top plate 111 and the second top plate 121, respectively, and a receiving groove 301 on its front side. Along the front-back direction, a slot is formed on the side of the receiving groove 301 away from the smoke collection chamber 101 to accommodate and protect the switch box 6. In this way, on the one hand, the receiving groove 301 can wrap around the switch box 6, improving safety and ease of maintenance; on the other hand, the above design completely isolates the switch box 6 from the oil fumes in the smoke collection chamber 101, avoiding pollution or damage.

[0047] The connector 3, through its fixed connection with the top plate, forms a rigid support structure and a high-strength frame, ensuring the installation stability of the smoke hood and the air box 2, and guaranteeing their precise positioning and resistance to deformation. It should be noted that the aforementioned top plate refers to the first top plate 111 and the second top plate 121. For ease of description, the term "top plate" in the following text will refer to both the first top plate 111 and the second top plate 121.

[0048] Based on the aforementioned specific structure, the design principle of the smoke collection hood of this utility model is as follows: This utility model incorporates a receiving groove 301 design on the connector 3, completely isolating the switch box 6 from the smoke collection chamber 101 through a semi-enclosed structure, thus preventing oil fume pollution or heat impact. Simultaneously, the fixing points of the connector 3 and the top plate are rationally distributed, dispersing stress and enhancing resistance to bending and vibration. Therefore, the newly added connector 3 in the smoke collection hood of this utility model combines the receiving function of the switch box 6 with the connection function of the top plate, thereby simplifying the complex structure of traditional range hoods that require additional protective shells or partitions.

[0049] Furthermore, the assembly and operation processes of the smoke collection hood of this utility model are as follows:

[0050] During assembly, connector 3 and top plate are quickly positioned and rigidly supported by a fixing structure, ensuring structural stability. Switch box 6 is introduced into the receiving groove 301 of connector 3 and electrically connected to other components through a pre-set cable channel. The closed design of the back of receiving groove 301 ensures complete isolation from oil fumes after installation.

[0051] During operation, the smoke collection chamber 101 draws in oil fumes through negative pressure, and the sealing structure between the connector 3 and the top plate prevents oil fumes from leaking from the top. The semi-enclosed design of the receiving groove 301 ensures that the switch box 6 is not contaminated by oil fumes, extending its service life. At the same time, the fixing structure between the connector 3 and the top plate can distribute the force, avoiding deformation or loosening caused by vibration or external forces.

[0052] In summary, the smoke collection hood of this utility model utilizes the first top plate 111, the connector 3, and the second top plate 121 to form an opening 102 connecting the ventilation box 2 and the smoke collection chamber 101. Compared to the method of opening a through hole in a single piece of plate at the top of the smoke collection hood in related technologies, this solution achieves cost reduction. Simultaneously, this solution improves the connector 3, integrating functions such as oil separation and reinforcement. On one hand, this solution eliminates the need for an additional oil separation structure; the oil separation effect can be achieved through the connector 3, thereby reducing parts and simplifying the structure and installation process. On the other hand, this solution enhances the overall strength and rigidity of the housing through the connection between the connector 3 and the smoke collection hood, thus preventing deformation of the range hood. Furthermore, the connector 3 forms a rigid support, distributing the force on the top plate, improving the deformation resistance of the smoke collection hood, achieving connection reinforcement for the split smoke collection hood, and improving the structural stability of the smoke collection hood.

[0053] For ease of understanding, some directional terms in this utility model are explained. Specifically, the width direction mentioned herein refers to... Figure 2 The front-to-back direction; the length direction, that is... Figure 2 The left and right directions in the middle.

[0054] like Figure 4 and Figure 6 As shown, according to some embodiments of the present invention, the connector 3 includes a partition 31, a connecting top plate 33, and two connecting side plates 32. The two connecting side plates 32 are respectively connected to the left and right ends of the partition 31 and extend forward. The partition 31 is the bottom of the receiving groove 301. The connecting top plate 33 is fixed to the top of the partition 31 and extends forward.

[0055] In this embodiment, the connector 3 consists of a partition 31, a connecting top plate 33, and two connecting side plates 32. Specifically, the partition 31 is located in the center of the connector 3 and serves as the bottom of the receiving groove 301. The two connecting side plates 32 are respectively connected to the left and right ends of the partition 31 and extend forward. The connecting top plate 33 is fixed to the top of the partition 31 and extends forward. The partition 31, the connecting top plate 33, and the two connecting side plates 32 together form a bottom-closed groove-shaped space, thereby forming the receiving groove 301. The front side of the receiving groove 301 has a slot for the switch box 6 to enter the receiving groove 301.

[0056] In some embodiments, the lower side of the receiving groove 301 can also be closed, in which case only the front slot of the receiving groove 301 is open. Alternatively, the lower side of the receiving groove 301 can have an open slot, which is not specifically limited here. When the lower side of the receiving groove 301 also has a slot, materials can be saved and costs reduced. Furthermore, since the switch box 6 is installed at the front of the fume hood, where there is less oil fume, the above structure can also ensure that the switch box 6 is not affected by oil fume. In addition, since components such as the lamp panel 13 are installed below the receiving groove 301, the lamp panel 13 can seal the slot on the lower side of the receiving groove 301, thereby allowing the connector 3 and the lamp panel 13 to jointly define the receiving groove 301 with only the front slot, thus creating a better enclosure effect for the switch box 6 and enhancing the oil-blocking effect.

[0057] It is understandable that the partition 31, as the core skeleton of the connector 3, can separate the smoke collection chamber 101 from other areas and enhance the overall rigidity. At the same time, the partition 31, as the bottom wall of the receiving groove 301, can provide a mounting base for the switch box 6, preventing it from being directly exposed to the oil fume environment. The connecting side plate 32 extends forward to form the side wall of the receiving groove 301; the connecting top plate 33 also extends forward to form the side wall of the receiving groove 301.

[0058] like Figure 4 and Figure 6 As shown, according to some embodiments of the present invention, at least one connecting side plate 32 is provided with a wire passage 321, which connects to the smoke collection chamber 101.

[0059] In this embodiment, the connecting side plate 32, in addition to serving as the connecting carrier between the side wall and the top plate of the receiving groove 301, also has a newly added cable management port 321, enabling it to perform cable management functions. Specifically, the cable management port 321 is located at an appropriate position on the connecting side plate 32, extending through the connecting side plate 32 in the left-right direction. One side of the cable management port 321 communicates with the receiving groove 301, used for leading out or leading in the cable of the switch box 6. The other side of the cable management port 321 communicates with the smoke collection chamber 101, allowing the cable to be connected to other components within the smoke collection chamber 101, such as fans, sensors, etc. For example, both connecting side plates 32 may have cable management ports 321, or only one connecting side plate 32 may have cable management ports 321. This utility model does not impose any special limitations here.

[0060] Furthermore, the area around the cable passage 321 can be equipped with sealing rings, clips, or clamps to ensure a complete seal between the cable and the contact surface of the cable passage 321 when the cable passes through, and to prevent oil fumes from entering the receiving groove 301 through gaps. In this way, the sealing design of the cable passage 321 directly solves the problem of oil fume leakage when the cable passes through.

[0061] like Figure 4 As shown, according to some embodiments of the present invention, it further includes a first front plate 112 and a second front plate 122. The first front plate 112 is fixed in front of the first top plate 111, and the second front plate 122 is fixed in front of the second top plate 121. The first front plate 112 is fixedly connected to the adjacent connecting side plate 32, and the second front plate 122 is fixedly connected to the adjacent connecting side plate 32; and / or, the first front plate 112 and the second front plate 122 are respectively connected to the left and right ends of the connecting top plate 33.

[0062] In this embodiment, the first top plate 111 and the first front plate 112 can be fixedly connected by means of integral molding, welding, snap-fit, or bolts. The second top plate 121 and the second front plate 122 can also be fixedly connected by means of integral molding, welding, snap-fit, or bolts. It can be understood that the top plate, as the top covering structure of the smoke hood, is used to support the connecting piece 3 and form the top outline of the smoke hood. The front plate is located at the front end of the smoke hood, and the fixed connection between the top plate and the front plate can form a "T" or "L" shaped cross section, thereby improving the bending resistance.

[0063] The first front plate 112 is fixedly connected to the adjacent connecting side plate 32 by welding, snap-fit, or screws, forming a rigid support between the smoke hood and the connecting piece 3. The second front plate 122 is similarly fixedly connected to the connecting side plate 32 on the other side, ensuring the structural stability of the smoke hoods on both sides. In some specific embodiments, the first front plate 112 and the second front plate 122 are respectively connected to the left and right ends of the connecting top plate 33, which further improves the structural strength of the smoke hood and ensures its stability.

[0064] In this way, on the one hand, the top and front panels of the smoke hood can be manufactured, transported, and installed separately, reducing complexity. Furthermore, if the front or top panel is partially damaged, it can be replaced individually without disassembling the entire smoke hood. On the other hand, the fixing points of the front panel and the connecting side panel 32 distribute the load, preventing the smoke hood from deforming due to vibration or external forces.

[0065] It should be explained that the above-mentioned top plate refers to the first top plate 111 and the second top plate 121. For ease of description, the top plate in the following text refers to the first top plate 111 and the second top plate 121. The above-mentioned front plate refers to the first front plate 112 and the second front plate 122. For ease of description, the front plate in the following text refers to the first front plate 112 and the second front plate 122.

[0066] Furthermore, the first front plate 112 and the second front plate 122 are respectively sealed at the connection with the two connecting side plates 32, for example by a snap-fit ​​or glue seal design, so as to ensure that the oil fumes cannot leak from the joint between the fume hood and the connector 3, and maintain the clean environment of the receiving tank 301.

[0067] like Figure 4 and Figure 6 As shown, in some specific embodiments of this utility model, a connecting flange 322 is also provided on the side of the connecting side plate 32 away from the partition plate 31. The two connecting flanges 322 are parallel to the first front plate 112 and the second front plate 122 respectively. The two connecting flanges 322 are fixedly connected to the first front plate 112 and the second front plate 122 respectively by fasteners 4.

[0068] In this embodiment, the connecting flange 322 is disposed on the side of the connecting side plate 32 away from the partition plate 31, i.e., the outer end face of the connecting side plate 32. The two connecting flanges 322 are parallel to the planes of the first front plate 112 and the second front plate 122, respectively, allowing the surfaces of the two connecting flanges 322 to respectively abut against the surfaces of the first front plate 112 and the second front plate 122, thereby increasing the contact area. This flange structure expands the contact area between the connecting side plate 32 and the front plate, providing a more stable fixing foundation. Simultaneously, the plane of the connecting flange 322 can serve as a guide surface during front plate installation, providing a clear installation reference, simplifying the alignment steps between the front plate and the connecting side plate 32, and ensuring alignment accuracy.

[0069] Specifically, the connecting flange 322 can be formed by stamping or bending processes, increasing the lateral stiffness of the connecting side plate 32 and dispersing the load transmitted by the front plate. The flange design parallel to the front plate avoids stress concentration and reduces the risk of deformation at the connection point. Furthermore, the tight fit between the connecting flange 322 and the front plate reduces gaps, and the sealing element of the fastener 4 further prevents oil fume leakage.

[0070] Fastener 4 can be a bolt, screw, or rivet, etc. Fastener 4 passes through the holes in the connecting flange 322 and the pre-drilled holes in the front plate, securing them together. This allows for quick assembly and disassembly using bolts or self-tapping screws, and the pre-tightening force of fastener 4 can counteract vibrations during the operation of the bellows 2, preventing loosening. Furthermore, the contact surface between fastener 4 and the connecting flange 322 / front plate can be sealed with gaskets or rubber rings to prevent oil fumes from leaking from the connection gaps.

[0071] In summary, this utility model, through the design of connecting flange 322 and fastener 4, can enhance the connection strength by relying on the mechanical support of connecting flange 322 and the pre-tightening force of fastener 4. The standardized flange guide surface and the hole positions of fastener 4 also simplify the installation process. In addition, the parallel design of connecting flange 322 combined with the sealing element of fastener 4 can completely isolate oil fume pollution.

[0072] like Figure 4 and Figure 6 As shown, according to some embodiments of the present invention, the two ends of the connecting top plate 33 are respectively connected to the first top plate 111 and the second top plate 121.

[0073] In this embodiment, the connecting top plate 33 is fixed to the top of the partition 31 and is located at the top layer of the connector 3. The connecting top plate 33 extends horizontally toward the outside of the smoke collection chamber 101 to form a top support structure.

[0074] The two ends of the connecting top plate 33 are fixed to the first top plate 111 and the second top plate 121 respectively by bolts or clips to form an integral frame. That is, the first top plate 111 and the second top plate 121 are connected by the connecting top plate 33 to form a continuous top covering structure, which enhances the overall rigidity. Through stress analysis of the entire smoke hood, it can be seen that the connecting top plate 33 can evenly transfer the weight of the smoke hood to the partition plate 31, avoiding deformation of the smoke hood due to excessive local stress. In this way, the connecting top plate 33 can act as the top skeleton of the smoke hood, distributing the weight and vibration load of the smoke hood.

[0075] In summary, the connecting top plate 33, together with the partition plate 31 and the connecting side plate 32, forms a "frame" structure, thereby distributing the lateral and longitudinal loads of the fume hood. Furthermore, the extended structure at the top can counteract the vibration of the bellows 2 during operation, reducing sagging or twisting of the fume hood. In addition, since the connecting top plate 33 covers the top of the fume hood, it further prevents oil fumes from leaking from the top plate connection.

[0076] like Figure 4 , Figure 5 and Figure 6As shown, the two ends of the connecting top plate 33 are respectively provided with a first flange 331 and a second flange 332 that fold downwards. The outer surfaces of the first flange 331 and the second flange 332 are respectively provided with two snap-fit ​​pieces 335 that extend toward the receiving groove 301.

[0077] The first top plate 111 and the second top plate 121 are respectively provided with two snap-fit ​​slots 123, and two snap-fit ​​pieces 335 are respectively snap-fitted into the two snap-fit ​​slots 123 one by one.

[0078] In this embodiment, the first flange 331 and the second flange 332 are formed by folding down both ends of the connecting top plate 33 and extend to the installation positions of the first top plate 111 and the second top plate 121. It can be understood that the first flange 331 and the second flange 332 can provide a supporting surface, enhance the lateral rigidity of the connecting top plate 33, and provide an installation base for the snap-fit ​​member 335.

[0079] The snap-fit ​​element 335 is located on the outer surface of the first flange 331 and the second flange 332, that is, on the side away from the partition 31. The snap-fit ​​element 335 extends in a direction away from the receiving groove 301 to avoid interference with the internal structure of the receiving groove 301. The snap-fit ​​element 335 can be a flexible buckle, a protruding latch, or a dovetail type snap head, etc., and this utility model does not impose any special limitations on it.

[0080] A snap-fit ​​groove 123 is provided on one side of the first top plate 111 adjacent to the first flange 331, and a snap-fit ​​groove 123 is also provided on one side of the second top plate 121 adjacent to the second flange 332. The snap-fit ​​groove 123 matches the snap-fit ​​component 335. For example, the snap-fit ​​groove 123 can be U-shaped, rectangular, or dovetail groove, etc., to ensure precise engagement.

[0081] In this way, the snap-fit ​​design of the snap-fit ​​member 335 and the snap-fit ​​groove 123 supports "plug and play," eliminating the need for bolts or welding, making assembly and disassembly more convenient. Furthermore, the engagement of the snap-fit ​​member 335 and the snap-fit ​​groove 123 provides dual longitudinal and lateral constraints, thereby preventing the top plate from shifting due to vibration or external forces. Simultaneously, since the two snap-fit ​​members 335 are respectively concealed at the junction of the first flange 331 and the first top plate 111, and at the junction of the second flange 332 and the second top plate 121, exposed screws are avoided, thus preventing aesthetic issues. In addition, the downward-folding first flange 331 and second flange 332 increase the lateral stiffness of the connecting top plate 33, distributing the load transmitted by the top plate.

[0082] In some specific embodiments, the snap-fit ​​element 335 can also be designed as an elastic structure, so that the snap-fit ​​element 335 can achieve snap-fit ​​through elastic deformation and absorb vibration energy.

[0083] For example, the two ends of the connecting top plate 33 are folded downward to form a first flange 331 and a second flange 332. Two elastic buckles, i.e., snap fasteners 335, are installed on the outer surface of each flange. The first top plate 111 and the second top plate 121 are respectively pre-set with two U-shaped snap slots 123, which match the snap fasteners 335.

[0084] During the actual assembly process, first align the snap-fit ​​groove 123 of the top plate with the snap-fit ​​part 335 connecting the top plate 33, and apply slight pressure. After the elastic buckle deforms, it snaps into the snap-fit ​​groove 123, and a "click" sound confirms that it is locked.

[0085] In some specific embodiments, the lengths of the first front plate 112 and the second front plate 122 are longer than the lengths of the first top plate 111 and the second top plate 121 in the left-right direction, respectively. The purpose is to connect the connector 3 to the first front plate 112 and the second front plate 122 respectively, thereby improving the overall stability of the smoke hood.

[0086] like Figure 4 and Figure 6 As shown, further, the side of the connecting top plate 33 away from the partition plate 31 is provided with a downwardly folded third flange 333. The left and right ends of the third flange 333 are respectively provided with bent top plate connecting ears 334. The two top plate connecting ears 334 are parallel to the first front plate 112 and the second front plate 122 respectively. The two top plate connecting ears 334 are fixedly connected to the first front plate 112 and the second front plate 122 respectively by fasteners 4.

[0087] In this embodiment, the front side of the connecting top plate 33 is folded downward to form a third flange 333. The third flange 333 provides a connection base, enhances the longitudinal stiffness of the connecting top plate 33, and provides support for the top plate connecting ears 334. The top plate connecting ears 334 are bent from both ends of the third flange 333 to form ear-shaped protrusions. The two top plate connecting ears 334 are parallel to the surface direction of the first front plate 112 and the second front plate 122, respectively, thereby ensuring alignment with the front plates during installation. At the same time, the holes of the top plate connecting ears 334 are aligned with the pre-set holes of the front plates and are mechanically connected by fasteners 4. For example, each top plate connecting ear 334 is fixed to the corresponding front plate by a structure such as bolts, screws, or rivets.

[0088] It is understandable that the downward-folding third flange 333 forms a vertical support structure, dispersing the load transmitted by the top plate and preventing the connecting top plate 33 from deforming due to stress. At the same time, the third flange 333 can achieve stiffness synergy with the first flange 331 and the second flange 332, thereby improving the bending and torsional resistance of the overall structure of the connector 3.

[0089] The top plate connecting lug 334 on the third flange 333 is similar to a lug in a steel structure. It connects the top plate 33 to the front plate as a whole using fasteners 4, thus forming a stable force transmission path. The top plate connecting lug 334 is parallel to the front plate, ensuring quick positioning without the need for additional angle adjustments during installation.

[0090] In summary, this embodiment, through the synergy of the third flange 333 and the top plate connecting lug 334, can efficiently transfer the load of the top plate to the front plate, thereby improving the overall structural integrity. Simultaneously, the connection structure of the fastener 4 supports quick assembly and disassembly, thus reducing maintenance costs.

[0091] In some specific embodiments, the top plate connecting lug 334 can be formed by bending metal materials, such as through cold stamping, thereby achieving higher shear and tensile strength.

[0092] like Figure 7 and Figure 8 As shown, according to some embodiments of the present invention, the smoke collection hood also includes a lamp panel 13, a first top plate 111 and a second top plate 121 are both located above the lamp panel 13 and fixedly connected thereto, and the lamp panel 13, the first top plate 111 and the second top plate 121 define a portion of the smoke collection cavity 101; wherein, the bottom of the connector 3 is fixedly connected to the upper part of the lamp panel 13.

[0093] In this embodiment, the lamp panel 13 serves as the main supporting structure of the smoke collection hood, located on the front side of the smoke collection hood, providing a mounting base for the top plate. The lamp panel 13 can bear the weight of the top plate and the pressure load generated by the oil fumes, and together with the top plate, it forms the front boundary of the smoke collection chamber 101, preventing oil fumes from overflowing from the front.

[0094] The first top plate 111 and the second top plate 121 are located above the lamp panel 13. The first top plate 111 is fixedly connected to the lamp panel 13 via the first front plate 112, and the second top plate 121 is fixedly connected to the lamp panel 13 via the second front plate 122. The bottom of the connector 3 is fixed to the upper part of the lamp panel 13 by bolts, welding, or clips. In this way, the connector 3 can connect the top plate, the front plate, and the lamp panel 13 into a whole, transferring the load to the lamp panel 13, improving the stability of the entire structure, and at the same time, improving the rigidity of the overall structure. In summary, this utility model achieves high volume, sealing, and structural stability of the smoke collection chamber 101 by stacking and fixing the lamp panel 13 and the top plate, combined with the bottom support of the connector 3. Its design takes into account the efficiency of oil fume collection, ease of maintenance, and space optimization.

[0095] like Figure 8 As shown, in one specific embodiment, the bottom of the partition 31 is provided with a rearwardly extending first mounting plate 311, and the first mounting plate 311 is fixedly connected to the upper surface of the lamp panel 13 by bolts or other structures.

[0096] In another specific embodiment, the bottom of the connecting side plate 32 is provided with a second mounting plate extending outward from the receiving groove 301, and the second mounting plate is fixedly connected to the upper surface of the lamp panel 13 by bolts or other structures.

[0097] In another specific embodiment, the bottom of the partition 31 is provided with a rearwardly extending first mounting plate 311, and the bottom of the connecting side plate 32 is provided with a second mounting plate extending outward from the receiving groove 301. The first mounting plate 311 and the second mounting plate are respectively fixedly connected to the upper surface of the lamp panel 13 by bolts or other structures.

[0098] Furthermore, the partition 31, the two connecting side plates 32, the connecting top plate 33, and the lamp panel 13 together define the receiving groove 301.

[0099] like Figure 2 As shown, according to some embodiments of the present invention, the range hood also includes a switch box 6 and a control panel 7. The switch box 6 is assembled in the receiving groove 301 of the connector 3, and the control panel 7 is installed on the front side of the first front plate 112, the second front plate 122 and the connector 3, and covers the slot of the receiving groove 301.

[0100] like Figures 1 to 9 As shown, the range hood according to a second aspect embodiment of the present invention includes a blower box 2, a fan assembly, and a smoke collection hood as described in the first aspect of the present invention. The blower box 2 communicates with the smoke collection chamber 101 through an opening 102, and is connected to a first top plate 111, a connector 3, and a second top plate 121, respectively. The range hood also includes a control panel 7 and a switch box 6. The switch box 6 is installed on the rear side of the control panel 7, and the rear side of the control panel 7 is sealed to the connector 6. That is, the control panel 7 covers and seals the front slot of the connector 6, at which time the switch box 6 is located in the receiving groove 301 of the connector 6.

[0101] According to some embodiments of the present invention, the range hood also includes a fan assembly. The fan assembly is installed inside the air box 2.

[0102] It is understood that the air box 2 is a housing for the fan assembly, typically made of metal or composite materials, and contains a fan, motor, etc. The fan assembly includes a fan and a drive motor, responsible for generating negative pressure to draw in oil fumes. The air box 2 is connected to the first top plate 111, the connecting piece 3, and the second top plate 121 to form an integral structure.

[0103] like Figure 8 and Figure 9As shown, in some specific embodiments, the connector 3 overlaps with the bellows 2. For example, the side surface of the partition 31 of the connector 3 facing the bellows 2 is provided with a fixing plate 5 that extends into the smoke collection chamber 101. The fixing plate 5 is provided with bolt fixing holes. The connector 3 is fixedly connected to the fixing plate 5 by bolts. The fixing plate 5 and the rear surface of the connector 3 form a slot 51. The front plate of the bellows 2 is inserted into the slot 51.

[0104] In this embodiment, the connector 3 serves as an intermediate support structure, directly inserting into the front plate of the bellows 2 to transfer load and ensure the continuity of the airflow path. Specifically, the fixing plate 5 is located on the side surface of the partition 31 facing the bellows 2 and extends into the smoke collection chamber 101. The fixing plate 5 provides a support point and fixed foundation for the bottom of the bellows 2, while not obstructing the airflow within the smoke collection chamber 101. The fixing plate 5 has pre-set threaded holes or through holes, and the connector 3 is fixedly connected to the fixing plate 5 by bolts. The front plate of the bellows 2 is inserted into the slot 51 defined by the fixing plate 5 and the connector 3.

[0105] Furthermore, the upper side of the fixing plate 5 can be configured to slope upwards from front to back, thereby forming a slot 51 for inserting the front plate of the bellows 2, ensuring the stable insertion of the bellows 2. At the same time, due to the inclined setting of the fixing plate 5, it can also play a guiding role when the front plate of the bellows 2 is inserted. Specifically, during the process of inserting the front plate of the bellows 2 into the slot 51, the front plate of the bellows 2 first contacts the upper end of the fixing plate 5, and gradually inserts downwards into the slot 51 along the inclined surface of the fixing plate 5, thereby ensuring the smooth insertion of the front plate of the bellows 2 and improving its insertion stability.

[0106] In this way, the fixed plate 5 serves as a load-bearing fulcrum, distributing the weight of the air box 2 and the vibration load generated by the fan. Furthermore, the air box 2, the top plate, and the connecting parts 3 form a relatively stable frame structure, thereby reducing the transmission of vibration from the fan during operation to the smoke hood, and thus improving the overall structural stability and strength of the range hood.

[0107] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0108] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A smoke collection hood for a range hood, comprising a smoke collection chamber (101), wherein the top of the smoke collection hood is provided with an opening (102) for connecting a ventilation box (2) to the smoke collection chamber (101), characterized in that: Includes a connector (3) and a first top plate (111) and a second top plate (121) that are spaced apart and fixedly connected to the left and right ends of the connector (3), respectively. The first top plate (111), the connector (3) and the second top plate (121) together form the opening (102). The connector (3) has a receiving groove (301) for accommodating the switch box (6). Along the front-back direction, the receiving groove (301) has a slot on the side away from the smoke collection chamber (101).

2. The smoke collection hood of the range hood according to claim 1, characterized in that: The connector (3) includes a partition (31), a connecting top plate (33), and two connecting side plates (32). The two connecting side plates (32) are respectively connected to the left and right ends of the partition (31) and extend forward. The partition (31) is the bottom of the receiving groove (301). The connecting top plate (33) is fixed to the top of the partition (31) and extends forward. The left and right ends of the connecting top plate (33) are respectively connected to the first top plate (111) and the second top plate (121).

3. The smoke collection hood of the range hood according to claim 2, characterized in that: The connecting top plate (33) has a first flange (331) and a second flange (332) that fold downwards at its left and right ends, respectively. The outer surfaces of the first flange (331) and the second flange (332) are respectively provided with two snap-fit ​​pieces (335) that extend toward the receiving groove (301). The first top plate (111) and the second top plate (121) are respectively provided with two snap-fit ​​slots (123), and the two snap-fit ​​pieces (335) are respectively snap-fitted into the two snap-fit ​​slots (123) one by one.

4. The smoke collection hood of the range hood according to claim 2, characterized in that: At least one of the connecting side plates (32) is provided with a wire passage (321), which is connected to the smoke collection chamber (101).

5. The smoke collection hood of the range hood according to claim 2, characterized in that: It also includes a first front plate (112) and a second front plate (122), the first front plate (112) being fixed in front of the first top plate (111) and the second front plate (122) being fixed in front of the second top plate (121); The first front plate (112) and the adjacent connecting side plate (32) are fixedly connected, and the second front plate (122) and the adjacent connecting side plate (32) are fixedly connected; and / or, the first front plate (112) and the second front plate (122) are respectively connected to the left and right ends of the connecting top plate (33).

6. The smoke collection hood of the range hood according to claim 5, characterized in that: The side of the connecting side plate (32) away from the partition plate (31) is also provided with a connecting flange (322). The two connecting flanges (322) are parallel to the first front plate (112) and the second front plate (122) respectively. The two connecting flanges (322) are fixedly connected to the first front plate (112) and the second front plate (122) respectively by fasteners (4).

7. The smoke collection hood of the range hood according to claim 5, characterized in that: The top plate (33) is provided with a downwardly folded third flange (333) on the side away from the partition (31). The left and right ends of the third flange (333) are respectively provided with bent top plate connecting ears (334). The two top plate connecting ears (334) are parallel to the first front plate (112) and the second front plate (122) respectively. The two top plate connecting ears (334) are fixedly connected to the first front plate (112) and the second front plate (122) respectively by fasteners (4).

8. The smoke collection hood of the range hood according to any one of claims 1 to 7, characterized in that: The smoke collection hood also includes a lamp panel (13), the first top plate (111) and the second top plate (121) are both located above the lamp panel (13) and fixedly connected thereto, the lamp panel (13), the first top plate (111) and the second top plate (121) define part of the smoke collection cavity (101); wherein, the bottom of the connector (3) is fixedly connected to the upper part of the lamp panel (13).

9. The smoke collection hood of the range hood according to any one of claims 1 to 7, characterized in that: The rear surface of the connector (3) is provided with a fixing plate (5) that extends into the smoke collection chamber (101). The fixing plate (5) and the rear surface of the connector (3) form a slot (51), and the front plate of the bellows (2) is inserted into the slot (51).

10. A range hood, characterized in that: Includes a bellows (2) and a smoke collection hood for a range hood as described in any one of claims 1 to 8; The bellows (2) is connected to the smoke collection chamber (101) through the opening (102), and is connected to the first top plate (111), the connector (3) and the second top plate (121) respectively; The range hood also includes a control panel (7) and a switch box (6), the switch box (6) being installed on the rear side of the control panel (7), and the rear side of the control panel (7) being sealed to the connector (3).

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