Tabletop range hood

Abstract

The utility model discloses a table top range hood, and relates to the technical field of range hoods. The table top range hood comprises an air duct shell, a support and a fan, the air duct shell is provided with an air duct, the support is arranged on the air duct and connected with the air duct shell, a turned-over edge is formed on the edge of the support, and the fan is arranged on the air duct and connected with the support. According to the technical scheme, the fan is supported by the support, and the turnup is formed on the edge of the support, so that the structural strength of the whole support can be enhanced, the installation stability of the fan is improved, and the operation stability of the fan is improved. Vibration generated when the draught fan operates can be transmitted to the support, resonance between the support and the draught fan can be reduced by improving the structural strength of the support, vibration of the table top range hood is effectively weakened, and generation of abnormal noise is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to a desktop range hood. Background Art

[0002] Desktop range hoods are a new type of range hoods that are small and easy to carry. They are placed on the desktop when in use and are mainly used in barbecue, hot pot and other scenes. The fan of the current desktop range hood is installed in the air duct through a bracket. The bracket structure is weak in strength, the fan operation stability is poor, and the vibration generated by the fan during operation is transmitted to the bracket and then to other parts of the body, which easily causes the overall vibration of the desktop range hood. Utility Model Content

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present application proposes a desktop range hood.

[0004] To achieve the above object, the present application discloses a desktop range hood, which comprises:

[0005] An air duct shell is provided with an air duct;

[0006] a bracket, disposed in the air duct and connected to the air duct shell, wherein a flange is formed on an edge of the bracket; and

[0007] The fan is arranged in the air duct and connected to the bracket.

[0008] In some embodiments of the present application, the flanges are bent toward the same side of the bracket.

[0009] In some embodiments of the present application, the thickness of the bracket is 0.6 mm to 1.2 mm.

[0010] In some embodiments of the present application, the bracket is made of metal or is a sheet metal part.

[0011] In some embodiments of the present application, the bracket includes a first connecting portion, the air duct housing includes a second connecting portion, and the first connecting portion and the second connecting portion are connected;

[0012] The desktop range hood further comprises a soft cushion, and the soft cushion is arranged between the first connecting portion and the second connecting portion.

[0013] In some embodiments of the present application, the first connecting portion, the cushion and the second connecting portion are suitable for fasteners to pass through for fastening.

[0014] In some embodiments of the present application, the second connecting portion is provided with a cavity, and the first connecting portion and the cushion are suitable for being inserted into the cavity.

[0015] In some embodiments of the present application, the first connection parts include three, and the three first connection parts are distributed at intervals along the circumference of the bracket.

[0016] In some embodiments of the present application, the fan and the bracket are suitable for being connected and then installed in the air duct.

[0017] In some embodiments of the present application, the bracket has a first side and a second side arranged opposite to each other, the fan is connected to the second side, the direction from the first side to the second side is a first direction, one end of the air duct constitutes an air outlet, and the fan and the bracket are suitable for being connected and then passing through the air outlet along the first direction to be installed in the air duct.

[0018] In some embodiments of the present application, one end of the air duct constitutes an air outlet, and the desktop range hood further includes a protective cover, which is disposed at the air outlet and connected to the bracket to occupy a partial area of ​​the air outlet.

[0019] In the technical solution of the present application, the bracket supports the fan, and by forming a flange on the edge of the bracket, the structural strength of the entire bracket can be strengthened, which is conducive to improving the installation stability of the fan, thereby improving the operating stability of the fan. When the fan is running, the vibration will be transmitted to the bracket. It is also by improving the structural strength of the bracket that the resonance between the bracket and the fan can be reduced, effectively weakening the vibration of the desktop range hood and greatly reducing the generation of abnormal noise.

[0020] Other advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other designs can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of a desktop range hood in some embodiments;

[0023] Figure 2 Schematic diagram of a desktop range hood in some embodiments (viewing angle and Figure 1 different);

[0024] Figure 3 An exploded view of a desktop range hood in some embodiments;

[0025] Figure 4Exploded diagram of desktop hoods in some embodiments (explosion degree and Figure 3 different);

[0026] Figure 5 A schematic diagram of a protective cover installed on an air outlet in some embodiments;

[0027] Figure 6 Schematic diagram of the installation of the protective cover to the air outlet in some embodiments (viewing angle and Figure 5 different);

[0028] Figure 7 Schematic diagram of air duct housing in some embodiments;

[0029] Figure 8 A cross-sectional view of an air duct housing in some embodiments;

[0030] Fig. 9 Schematic diagram of the air duct shell in some embodiments (viewing angle and Figure 7 different);

[0031] Fig.10 A schematic diagram of the connection between the bracket and the fan in some embodiments;

[0032] Fig.11 Schematic diagram of the connection between the bracket and the fan in some embodiments (viewing angle and Figure 8 different);

[0033] Fig.12 A schematic diagram of a bracket in some embodiments;

[0034] Fig.13 Schematic diagram of the bracket in some embodiments (viewing angle and Fig.12 different);

[0035] Fig.14 A schematic diagram of a protective cover in some embodiments;

[0036] Fig.15 for Fig.14 The enlarged view marked as A in FIG.

[0037] Fig.16 Schematic diagram of protective cover in some embodiments (viewing angle and Fig.14 different);

[0038] Fig.17 Schematic diagram of the flow direction of oil smoke through the air outlet.

[0039] Description of Figure Numbers:

[0040] The range hood body 1000, the air duct shell 1100, the second connecting portion 1110, the concave cavity 1111, the fan 1200, the air duct 1300, the air inlet 1400, the air outlet 1500, the first area 1510, the second area 1520, the bracket 1600, the first side 1601, the second side 1602, the first connecting portion 1610, the clamping hole 1620, the flange 1630, the cushion 1700, the fuselage 2000, the protective cover 3000, the air outlet 3100, the guide tongue 3200, the first guide tongue 3210, the second guide tongue 3220, the third guide tongue 3230, the first annular wall 3100, the claw 3110, the limit portion 3200, and the flow space 3300.

[0041] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] This application proposes a desktop range hood, combined with Figures 1 to 4 as well as Figures 7 to 13 As shown, in some embodiments, the desktop range hood includes an air duct shell 1100, a bracket 1600 and a fan 1200, wherein the air duct shell 1100 is provided with an air duct 1300, and the bracket 1600 and the fan 1200 are arranged in the air duct 1300, the bracket 1600 needs to be connected to the air duct shell 1100 so as to be fixed inside the air duct shell 1100, the fan 1200 needs to be connected to the bracket 1600 so as to be fixed inside the air duct shell 1100, and a flange 1630 is formed on the edge of the bracket 1600.

[0047] The bracket 1600 supports the fan 1200. By forming a flange 1630 on the edge of the bracket 1600, the structural strength of the entire bracket 1600 can be strengthened, which is conducive to improving the installation stability of the fan 1200, thereby improving the operating stability of the fan 1200. When the fan 1200 is running, the vibration will be transmitted to the bracket 1600. It is also by improving the structural strength of the bracket 1600 that the resonance between the bracket 1600 and the fan 1200 can be reduced, effectively weakening the vibration of the desktop range hood and greatly reducing the generation of abnormal noise.

[0048] Specifically, the tabletop range hood includes a range hood body 1000 and a body 2000. The range hood body 1000 is mounted on the body 2000. The tabletop range hood is placed on the tabletop through the body 2000, so that the range hood body 1000 is a certain distance away from the tabletop. The range hood body 1000 includes an air duct shell 1100, a bracket 1600, a fan 1200 and a protective cover 3000. The air duct shell 1100 is provided with an air duct 1300. The air duct shell 1100 can be integrally formed or formed by connecting at least two parts. One end of the air duct 1300 constitutes an air inlet 1400, and the other end of the air duct 1300 constitutes an air outlet 1500. The fan 1200 is arranged in the air duct 1300 and is located between the air inlet 1400 and the air outlet 1500. When the fan 1200 is working, it drives the oil smoke from the air inlet 1400 into the air duct 1300 and is discharged from the air outlet 1500. The fan 1200 needs to be fixed in the air duct 1300 by a bracket 1600. The bracket 1600 is arranged in the air duct 1300. The bracket 1600 is designed to be connected to the air duct shell 1100, so as to fix the bracket 1600, and the fan 1200 is connected to the bracket 1600, so as to fix the fan 1200 in the air duct 1300.

[0049] In this embodiment, the edge of the bracket 1600 is formed with a flange 1630. The setting of the flange 1630 greatly improves the structural strength of the bracket 1600. It can be understood that the fan 1200 rotates at a high speed during operation. By improving the structural strength of the bracket 1600, the installation stability of the fan 1200 is greatly improved, so that the fan 1200 is not easy to shake during operation. At the same time, the fan 1200 will vibrate during operation. The vibration generated by the fan 1200 will be transmitted to the bracket 1600, and then to the air duct shell 1100 and the fuselage 2000. Since the structural strength of the bracket 1600 is greatly improved, it is beneficial for the bracket 1600 to stay away from the resonant frequency range and reduce the amplitude of the vibration. In this way, the bracket 1600 is not easy to resonate with the fan 1200. Through such a setting, the bracket 1600 can effectively support the fan 1200 and weaken the generation of abnormal noise.

[0050] Combination Fig.12 and Fig.13As shown, in some embodiments, the flanges 1630 are bent toward the same side of the bracket 1600, that is, the edge of the bracket 1600 has a certain length, and the flanges 1630 formed along the extension direction of the edge of the bracket 1600 are all bent toward the same side of the bracket 1600, thereby reducing the manufacturing difficulty of the bracket 1600. For example, the bracket 1600 is divided into two halves, and the flanges 1630 of one half and the flanges 1630 of the other half are bent in opposite directions, so that the bracket 1600 needs to be processed in two different directions, while the flanges 1630 in this embodiment are toward the same side of the bracket 1600, and the bracket 1600 only needs to be processed in one direction, and the construction process is simpler.

[0051] In some embodiments, the material of the bracket 1600 is metal, such as an iron-carbon alloy, and the metal has a certain ductility, which facilitates the processing of the flange 1630 while ensuring that the bracket 1600 has a high structural strength. For example, the bracket 1600 is a sheet metal part, that is, the bracket 1600 is processed by a sheet metal process, and the sheet metal process is mature, which is conducive to reducing the manufacturing difficulty of the bracket 1600.

[0052] In some embodiments, the thickness of the bracket 1600 is designed to be 0.6 mm to 1.2 mm, for example, the thickness of the bracket 1600 is 0.6 mm, 0.8 mm, 0.9 mm, 1.1 mm or 1.2 mm. Compared with the case where the flange 1630 is not provided, the provision of the flange 1630 is conducive to reducing the material consumption of the bracket 1600 while ensuring that the structural strength of the bracket 1600 remains unchanged, thereby reducing the cost.

[0053] Combination Figure 3 , Figure 4 , Fig.12 and Fig.13 As shown, in some embodiments, the bracket 1600 includes a first connection portion 1610 , and the air duct housing 1100 includes a second connection portion 1110 , and the bracket 1600 is fixed in the air duct 1300 by connecting the first connection portion 1610 with the second connection portion 1110 .

[0054] For example, the air duct shell 1100 is integrally injection molded, and the second connection part 1110 is simultaneously molded during the process of integrally injection molding of the air duct shell 1100. The second connection part 1110 is located on the inner wall of the air duct shell 1100, that is, the second connection part 1110 is located in the air duct 1300. When the bracket 1600 is installed to the air duct 1300, the first connection part 1610 cooperates with the second connection part 1110 to achieve connection.

[0055] Since the vibration of the fan 1200 will be transmitted to the bracket 1600, if the first connection part 1610 is in direct contact with the second connection part 1110, the vibration will be transmitted through the contact between the first connection part 1610 and the second connection part 1110. In order to weaken the transmission of vibration, in this embodiment, a soft pad 1700 is provided. The soft pad 1700 has a certain flexibility and can achieve elastic deformation. For example, the soft pad 1700 is a silicone pad or a rubber pad. The soft pad 1700 is provided between the first connection part 1610 and the second connection part 1110. When the first connection part 1610 and the second connection part 1110 are connected and fixed, the first connection part 1610 and the second connection part 1110 jointly clamp the soft pad 1700. When the vibration is transmitted from the first connection part 1610 to the second connection part 1110, the soft pad 1700 can absorb the energy of the vibration, thereby weakening the transmission of the vibration to the second connection part 1110. Through such a setting, the overall vibration of the desktop range hood is further weakened.

[0056] In some embodiments, the first connection part 1610, the cushion 1700 and the second connection part 1110 are used for fasteners (not shown in the figure) to pass through for fastening, that is, the connection between the first connection part 1610 and the second connection part 1110 is achieved by the fasteners. When connecting the first connection part 1610 and the second connection part 1110, the fasteners need to pass through the first connection part 1610 and the second connection part 1110, and at the same time, they need to pass through the cushion 1700. Through such a setting, the connection among the first connection part 1610, the cushion 1700 and the second connection part 1110 is achieved.

[0057] Since the cushion 1700 is arranged between the first connection part 1610 and the second connection part 1110, it is clamped by the connection between the first connection part 1610 and the second connection part 1110. Since the vibration will be transmitted to the cushion 1700, the cushion 1700 can be restrained by passing the fastener through the cushion 1700. Even in the case of vibration, the cushion 1700 is not easy to shift in position and disengage from between the first connection part 1610 and the second connection part 1110.

[0058] For example, the fastener is a screw, the cushion 1700 is provided with a through hole, the first connection part 1610 and the second connection part 1110 are respectively provided with screw holes, the screw passes through the screw hole of the first connection part 1610, the through hole of the cushion 1700 and the screw hole of the second connection part 1110 in sequence and is screwed together, thereby fastening the first connection part 1610, the cushion 1700 and the second connection part 1110.

[0059] Combination Figure 3 , Figure 4 , Fig.12 and Fig.13As shown, in some embodiments, the second connection portion 1110 is provided with a cavity 1111, and the first connection portion 1610 and the cushion 1700 are suitable for being inserted into the cavity 1111. The provision of the cavity 1111 can play a role in positioning the installation of the bracket 1600.

[0060] Specifically, when installing the bracket 1600 to the air duct 1300, first insert the cushion 1700 into the concave cavity 1111 to achieve the positioning of the cushion 1700. For example, the cushion 1700 and the cavity wall of the concave cavity 1111 can be interference fit together, and the cushion 1700 is not easy to change position. Then install the bracket 1600, align the first connection part 1610 on the bracket 1600 with the second connection part 1110 until the first connection part 1610 is inserted into the concave cavity 1111 of the second connection part 1110, thereby positioning the bracket 1600. At this time, the relative positions of the second connection part 1110, the cushion 1700 and the first connection part 1610 are not easy to change, so it is convenient to continue to achieve the connection and fixation between the second connection part 1110, the cushion 1700 and the first connection part 1610 through fasteners.

[0061] Combination Fig.12 As shown, in some embodiments, the number of the first connection portions 1610 includes three, and the three first connection portions 1610 are distributed at intervals along the circumference of the bracket 1600.

[0062] For example, the three first connection parts 1610 are respectively convex, and correspondingly, the air duct shell 1100 includes three second connection parts 1110. The three first connection parts 1610 correspond to the three second connection parts 1110 one by one, so that three supporting connection points are formed between the bracket 1600 and the air duct shell 1100, and the lines connecting the three supporting connection points in sequence form a triangle, which further improves the supporting stability of the bracket 1600 and can effectively reduce the number of the first connection parts 1610 and the second connection parts 1110, thereby reducing the complexity of the structure.

[0063] In particular, the three first connecting parts 1610 are evenly spaced along the circumference of the bracket 1600. For example, the angle between two adjacent first connecting parts 1610 along the circumference is 120°. By distributing them evenly, the force on the bracket 1600 (the supporting force of the air duct shell 1100 on the bracket 1600) is more evenly distributed, thereby further improving the stability of the bracket 1600.

[0064] Combination Figure 4 , Fig.10 and Fig.11As shown, in some embodiments, the fan 1200 is connected to the bracket 1600 and then installed in the air duct 1300. That is, when assembling the desktop range hood, the fan 1200 is connected to the bracket 1600, thereby being assembled into a module with the bracket 1600, and then the module is installed in the air duct 1300. By such a setting, the assembly efficiency of the desktop range hood is improved.

[0065] For example, the bracket 1600 has a first side 1601 and a second side 1602 opposite to each other, and the direction from the first side 1601 to the second side 1602 is defined as a first direction. The fan 1200 is connected to the second side 1602, and the module formed by combining the bracket 1600 and the fan 1200 is installed in the air duct 1300 along the first direction through the air outlet 1500 until the first connecting portion 1610 on the bracket 1600 is matched with the second connecting portion 1110 on the air duct shell 1100. At this time, the first side 1601 faces away from the outside of the air duct shell 1100 (that is, if the air outlet 1500 is open, the first side 1601 can be observed through the air outlet 1500), and the second side 1601 faces the inside of the air duct shell.

[0066] Combination Figure 5 and Figure 6 As shown, in some embodiments, the desktop range hood further includes a protective cover 3000 , which is disposed at the air outlet 1500 and occupies a partial area of ​​the air outlet 1500 .

[0067] Specifically, the air duct shell 1100 is basically a cylindrical structure, the air inlet 1400 is open along the axial direction of the air duct shell 1100, and the air outlet 1500 is also open along the axial direction of the air duct shell 1100. When in use, the desktop range hood needs to be placed on the desktop and close to the smoke source. In certain usage scenarios, such as hot pot scenarios, the desktop range hood is placed on the dining table and close to the pot body of the hot pot. When the desktop range hood is working, it can suck the oil smoke from the pot body and discharge it in a specific direction. If there are a large number of users, the users sit around the dining table, and some users sit facing the air outlet 1500, and the exhaust smoke of the desktop range hood will blow towards these users.

[0068] For this purpose, in this embodiment, a protective cover 3000 is provided, and the protective cover 3000 is provided at the air outlet 1500, so that the protective cover 3000 occupies part of the area of ​​the air outlet 1500. When the oil smoke is discharged from the air outlet 1500, a part of the oil smoke will be discharged from the position of the air outlet 1500 not occupied by the protective cover 3000, and a part of the oil smoke will be blocked by the protective cover 3000 and then change direction, and then be discharged from the position of the air outlet 1500 not occupied by the protective cover 3000. Since a part of the oil smoke changes direction when encountering resistance, a buffering effect is played on the flow of the oil smoke, reducing the flow of the user directly blown (blowing along the axial direction of the air outlet 1500). In particular, the protective cover 3000 can be designed to be substantially perpendicular to the flow direction of the oil smoke, and the oil smoke collides with the protective cover 3000 in a direction substantially perpendicular to the protective cover 3000 and then changes direction, so that a better buffering effect can be formed on the oil smoke.

[0069] In addition, by providing the protective cover 3000, the area of ​​the air outlet 1500 becomes smaller, and when the oil smoke is discharged from the air outlet 1500 until it contacts the user, the contact area between the oil smoke and the user also becomes smaller, thereby reducing the range of the oil smoke blowing toward the user. By such a configuration, the discomfort caused by the oil smoke blowing toward the user is reduced as much as possible, and the user experience is improved.

[0070] It is understandable that the protective cover 3000 is located downstream of the fan 1200. By setting the protective cover 3000 at the air outlet 1500, the protective cover 3000 can also play a certain blocking role against the outside world, preventing the user from contacting the internal structure of the range hood body 1000 (such as the fan 1200), thereby improving the safety of use.

[0071] Combination Figure 1 and Figure 2 As shown, in some embodiments, the protective cover 3000 is connected to the bracket 1600. As mentioned above, the bracket 1600 serves as a supporting base for the fan 1200, and the fan 1200 is connected and fixed to the bracket 1600. Based on this, the bracket 1600 also serves as a supporting base for the protective cover 3000, and the protective cover 3000 is connected and fixed to the bracket 1600. In this way, the fan 1200 and the protective cover 3000 share the bracket 1600, reducing the number of brackets 1600 and simplifying the structure.

[0072] The bracket 1600 is disposed inside the air duct housing 1100, and it is not easy for the user to observe the bracket 1600. It is also because the bracket 1600 is disposed inside the air duct housing 1100 that the connection structure between the protective cover 3000 and the bracket 1600 can be hidden to a certain extent when the protective cover 3000 is connected to the bracket 1600, and it is not easy for the user to observe. There are many ways to connect the protective cover 3000 and the bracket 1600, as long as the protective cover 3000 is fixed, such as through a snap connection, a screw connection, a magnetic connection, and other methods.

[0073] In some embodiments, the protective cover 3000 and the bracket 1600 are designed to be detachably connected, that is, when the protective cover 3000 is needed, the protective cover 3000 is connected and fixed to the bracket 1600, and when the protective cover 3000 is not needed, the protective cover 3000 can be removed. For example, in some application scenarios, it is not necessary to have a buffering effect on the emission of oil smoke, in which case the protective cover 3000 can be removed, while in other application scenarios, it is necessary to have a buffering effect on the emission of oil smoke, in which case the protective cover 3000 can be connected and fixed to the bracket 1600. There are many ways of detachable connection, such as snap connection, screw connection or magnetic connection, etc. The detachable connection facilitates the disassembly and assembly between the protective cover 3000 and the bracket 1600.

[0074] Combination Fig.12 , Fig.13 and Fig.16 As shown, in some embodiments, the inner side of the protective cover 3000 includes a first annular wall 3100 (the inner side is the side facing the bracket 1600 ), the first annular wall 3100 protrudes toward the bracket 1600 , and the protective cover 3000 is connected to the bracket 1600 through the first annular wall 3100 .

[0075] Specifically, the first annular wall 3100 is disposed on the inner side of the protective cover 3000. When the protective cover 3000 is installed, the protective cover 3000 is fixed by connecting the first annular wall 3100 to the bracket 1600. By providing the first annular wall 3100, the bracket 1600 can be kept away from the air outlet 1500 to a certain extent. In particular, when the fan 1200 is connected and fixed to the bracket 1600, the fan 1200 is not easily visible to the user, thereby minimizing the exposure of the fan 1200 to the user's field of vision.

[0076] It can be understood that by setting the first annular wall 3100 on the inner side of the protective cover 3000, the first annular wall 3100 can also strengthen the protective cover 3000, and the protective cover 3000 is not easy to deform. In particular, the first annular wall 3100 is designed to be arranged alternately with the edge of the protective cover 3000, so that the structural strength of the protective cover 3000 within the range of the first annular wall 3100 and the part outside the range can be strengthened.

[0077] Continue to combine Fig.12 , Fig.13 and Fig.16As shown, in some embodiments, one of the first annular wall 3100 and the bracket 1600 is provided with a claw 3110, and the other of the first annular wall 3100 and the bracket 1600 is provided with a clamping hole 1620. The claw 3110 is clamped in the clamping hole 1620 to achieve a snap connection, which can realize the installation and fixation of the protective cover 3000, as well as the disassembly of the protective cover 3000.

[0078] The first annular wall 3100 may be provided with a claw 3110, and the corresponding bracket 1600 may be provided with a hole 1620; or the first annular wall 3100 may be provided with a hole 1620, and the corresponding bracket 1600 may be provided with a claw 3110; or the first annular wall 3100 may be provided with both the claw 3110 and the hole 1620, and the corresponding bracket 1600 may be provided with the hole 1620 and the claw 3110, the claw 3110 of the first annular wall 3100 and the hole 1620 of the bracket 1600 correspond to each other, and the hole 1620 of the first annular wall 3100 and the claw 3110 of the bracket 1600 correspond to each other.

[0079] Taking the example of the first annular wall 3100 being provided with a claw 3110 and the corresponding bracket 1600 being provided with a latch hole 1620, when installing the protective cover 3000, the protective cover 3000 basically moves along the axial direction of the air outlet 1500 toward the bracket 1600 until the claw 3110 is latched into the latch hole 1620, so that the protective cover 3000 can be fixed.

[0080] When the first annular wall 3100 is provided with a claw 3110, since the claw 3110 is protruding toward the bracket 1600, by providing the first annular wall 3100, the first annular wall 3100 can provide a reinforcing support for the claw 3110, and can effectively prevent the claw 3110 from breaking. It is particularly suitable for the case where the first annular wall 3100 and the claw 3110 are formed simultaneously by integral injection molding of the protective cover 3000.

[0081] Combination Figure 4 , Figures 6 to 9 , Fig.14 and Fig.16 As shown, in some embodiments, the protective cover 3000 is provided with a limiting portion 3200 , and the limiting portion 3200 is protruded relative to the edge of the protective cover 3000 along the radial direction of the air outlet 1500 , and when the protective cover 3000 is installed in place, the limiting portion 3200 is inserted into the concave cavity 1111 .

[0082] Taking the example that the protective cover 3000 is provided with a claw 3110 and the bracket 1600 is provided with a hole 1620, when the protective cover 3000 is installed on the bracket 1600, since the claw 3110 is located on the inner side of the protective cover 3000, it is difficult to observe the coordination between the claw 3110 and the hole 1620 during the installation process of the protective cover 3000, which will reduce the assembly efficiency of the protective cover 3000.

[0083] To this end, in the present embodiment, the protective cover 3000 includes a limiting portion 3200, and the limiting portion 3200 is protruded relative to the edge of the protective cover 3000 along the radial direction of the air outlet 1500. In this way, during the installation of the protective cover 3000, the limiting portion 3200 can be observed at all times, thereby controlling the limiting portion 3200 to be inserted into the concave cavity 1111. The limiting portion 3200 cooperates with the concave cavity 1111 to achieve positioning, thereby realizing the cooperation between the claw 3110 and the clamping hole 1620 (not limited to the cooperation between the claw 3110 and the clamping hole 1620, and can also be applied to other connection methods), which is convenient and quick, and improves assembly efficiency.

[0084] Combination Figures 5 to 9 as well as Fig.14 , Fig.15 As shown, in some embodiments, the protective cover 3000 is configured to have a flow space 3300 between the edge of the air outlet 1500 , and the protective cover 3000 is provided with an air outlet hole 3100 , which is connected to the air outlet 1500 .

[0085] For example, the air outlet 1500 is divided into a first area 1510 and a second area 1520. The first area 1510 is closer to the center of the air outlet 1500 than the second area 1520, and the second area 1520 surrounds the first area 1510. When the protective cover 3000 is arranged in the first area 1510, the second area 1520 is located between the protective cover 3000 and the edge of the air outlet 1500, that is, at least part of the second area 1520 forms a flow space 3300. When the oil smoke is discharged from the air outlet 1500, part of the oil smoke will be discharged from the edge between the protective cover 3000 and the air outlet 1500 (flow space 3300), part of the oil smoke will be discharged through the air outlet 3100, and part of the oil smoke will be blocked by the protective cover 3000 and then changed direction and then discharged through the edge between the protective cover 3000 and the air outlet 1500 (flow space 3300) or the air outlet 3100. By providing the air outlet 3100 on the protective cover 3000, the obstruction to the oil smoke can be appropriately reduced (but there is still a certain obstruction), which is helpful to avoid a significant increase in noise.

[0086] In order to ensure that the discomfort caused by the oil smoke blowing toward the user can still be reduced when the air outlet 3100 is set, the protective cover 3000 includes a guide tongue 3200, which is set around the air outlet 3100, for example, the guide tongue 3200 is set at the edge of the air outlet 3100. When the oil smoke is discharged through the air outlet 3100, it will encounter the guide tongue 3200, and the guide tongue 3200 plays a guiding role for the oil smoke. In this embodiment, the guide tongue 3200 is designed to be inclined relative to the axial direction of the air outlet 1500. The direction of the guide tongue 3200 can be determined according to the actual survey situation, so as to minimize the oil smoke blowing directly (along the axial direction of the air outlet 1500) toward the user through the air outlet 3100. In addition, the oil smoke discharged from the air outlet 3100 intersects with the oil smoke discharged from the flow space 3300, and the two oil smokes intersect, which further plays a buffering effect.

[0087] Combination Fig.14 , Fig.15 and Fig.17 As shown, in some embodiments, the guide tongue 3200 includes a first guide tongue 3210, a second guide tongue 3220 and a third guide tongue 3230, wherein the first guide tongue 3210, the second guide tongue 3220 and the third guide tongue 3230 are designed to be arranged along the axial direction around the air outlet 1500, and the inclination direction of the first guide tongue 3210, the inclination direction of the second guide tongue 3220 and the inclination direction of the third guide tongue 3230 are designed to be divergent, and the inclination direction of each guide tongue 3200 is designed to be radiating, so that the oil smoke is dispersed along the circumference of the air outlet 1500 (in a diffused manner), reducing the amount of oil smoke in a certain direction. Even if there is oil smoke blowing towards the user through the air outlet 3100, the amount of oil smoke is greatly reduced.

[0088] For example Fig.17 In the orientation shown, the protective cover 3000 is divided into three parts, and the three parts are arranged in a circle. One part of the protective cover 3000 includes a first guide tongue 3210, another part of the protective cover 3000 includes a second guide tongue 3220, and the remaining part of the protective cover 30003000 includes a third guide tongue 3230. The first guide tongue 3210 is inclined toward the upper left, the second guide tongue 3220 is inclined toward the right, and the third guide tongue 3230 is inclined toward the lower left, so that the inclination direction of each guide tongue 3200 is divergent (see Fig.17 of oil smoke).

[0089] Further, under the premise that the protective cover 3000 is provided with the air outlet 3100, the protective cover 3000 occupies 40% to 60% of the area of ​​the air outlet 1500, which can be 40%, 50%, 55% or 60%. The following method can be used for measurement: for example, along the axial direction of the air outlet 1500, a projection is made toward a plane (the plane is perpendicular to the axial direction of the air outlet 1500), and the area of ​​the projection of the protective cover 3000 is 40% to 60% of the area of ​​the projection of the air outlet 1500, so as to further optimize the performance.

[0090] Combination Figure 5 and Figure 6 As shown, in some embodiments, at least part of the protective cover 3000 is embedded in the air duct housing 1100, and is projected along the axial direction of the air outlet 1500. The projection of the protective cover 3000 is located within the projection of the air outlet 1500, and the projection of the flow space 3300 is set between the edge of the projection of the air outlet 1500 and the edge of the projection of the protective cover 3000. In this way, the proportion of the protective cover 3000 in the user's field of vision can be minimized. It is understandable that when using the desktop range hood, the desktop range hood is placed on the desktop, and the user mainly sees the appearance of the air duct housing 1100. This embodiment improves the installation position of the protective cover 3000, so that the user is not easy to see the protective cover 3000 at more angles, thereby enhancing the sensory experience.

[0091] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A desktop range hood, characterized in that: The desktop range hood comprises: An air duct housing (1100) is provided with an air duct (1300); A bracket (1600) is disposed on the air duct (1300) and connected to the air duct shell (1100), and a flange (1630) is formed on the edge of the bracket (1600); and The fan (1200) is disposed in the air duct (1300) and connected to the bracket (1600).

2. The desktop range hood according to claim 1, characterized in that: The flanges (1630) are bent toward the same side of the bracket (1600).

3. The desktop range hood according to claim 1, characterized in that: The thickness of the support (1600) is 0.6 mm to 1.2 mm.

4. The desktop range hood according to claim 1, characterized in that: The material of the bracket (1600) is metal or the bracket (1600) is a sheet metal part.

5. The desktop range hood according to claim 1, characterized in that: The bracket (1600) includes a first connection portion (1610), the air duct housing (1100) includes a second connection portion (1110), and the first connection portion (1610) and the second connection portion (1110) are connected; The desktop range hood further comprises a soft cushion (1700), and the soft cushion (1700) is arranged between the first connecting portion (1610) and the second connecting portion (1110).

6. The desktop range hood according to claim 5, characterized in that: The first connection portion (1610), the cushion (1700) and the second connection portion (1110) are suitable for fasteners to pass through for fastening.

7. The desktop range hood according to claim 5, characterized in that: The second connecting portion (1110) is provided with a concave cavity (1111), and the first connecting portion (1610) and the cushion (1700) are suitable for being inserted into the concave cavity (1111).

8. The desktop range hood according to claim 5, characterized in that: The first connection parts (1610) include three, and the three first connection parts (1610) are distributed at intervals along the circumference of the bracket (1600).

9. The desktop range hood according to claim 1, characterized in that: The fan (1200) and the bracket (1600) are suitable for being connected and then installed in the air duct (1300).

10. The tabletop range hood according to claim 9, characterized in that: The bracket (1600) has a first side (1601) and a second side (1602) arranged in opposite directions, the fan (1200) is connected to the second side (1602), the direction from the first side (1601) to the second side (1602) is a first direction, one end of the air duct (1300) constitutes an air outlet (1500), and the fan (1200) and the bracket (1600) are suitable for being connected and then passing through the air outlet (1500) along the first direction to be installed in the air duct (1300).

11. The tabletop range hood according to claim 1, characterized in that: One end of the air duct (1300) forms an air outlet (1500), and the desktop range hood further comprises a protective cover (3000). The protective cover (3000) is arranged at the air outlet (1500) and connected to the bracket (1600) to occupy a part of the area of ​​the air outlet (1500).

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