Range hood frame and range hood

Abstract

The present application discloses a range hood frame and a range hood, wherein the range hood frame is formed with an installation space for installing a fan assembly; an air outlet installation port is formed on the top of the range hood frame for connecting the air outlet of the fan assembly; the bottom of the range hood frame is used to connect the smoke outlet of the oil fume guide assembly of the range hood, and the air inlet of the fan assembly, the installation space and the smoke outlet of the oil fume guide assembly are mutually conductive; wherein, when the air inlet of the fan assembly in the range hood frame faces a first direction, the range hood frame can be connected to a first type of oil fume guide assembly; when the air inlet of the fan assembly faces a second direction, the range hood frame can be connected to a second type of oil fume guide assembly; the first direction and the second direction are opposite. The range hood frame of the present application can improve the universalization and standardization of the range hood.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a range hood frame and a range hood. Background Art

[0002] The range hood is a kitchen appliance that purifies the kitchen environment. It can quickly extract the waste from stove combustion and the oil smoke generated during cooking that is harmful to the human body and discharge it outdoors. Due to the different guide plate structures in different range hoods, the range hood frame in the range hood can only match the range hood installed with the corresponding guide plate, but not with other types of range hoods, thus failing to meet the needs of changing different types of range hoods. Summary of the invention

[0003] The present application provides a range hood rack and a range hood to solve the problem that the existing range hood rack can only match corresponding range hoods but cannot match other types of range hoods.

[0004] In order to solve the above technical problems, the present application proposes a range hood frame, which is formed with an installation space for installing a fan assembly; an air outlet installation port is formed on the top of the range hood frame for connecting the air outlet of the fan assembly; the bottom of the range hood frame is used to connect the smoke outlet of the oil fume guide assembly of the range hood, and the air inlet of the fan assembly, the installation space and the smoke outlet of the oil fume guide assembly are interconnected; wherein, when the air inlet of the fan assembly in the range hood frame faces a first direction, the range hood frame can be connected to a first type of oil fume guide assembly; when the air inlet of the fan assembly faces a second direction, the range hood frame can be connected to a second type of oil fume guide assembly; the first direction and the second direction are opposite.

[0005] Among them, the bottom of the range hood frame is a rotationally symmetrical structure, which coincides with itself after rotating 180° around its rotation center.

[0006] Among them, the range hood frame includes: two side plates, which are arranged at relative intervals along a first direction; two cover plates, both connected to the two side plates, and arranged at relative intervals along a second direction; a top plate, connected to the tops of the two side plates and the two cover plates, and forming an installation space with the two side plates and the two cover plates; an air outlet installation port is formed on the top plate; wherein the bottom of the two side plates and the two cover plates serves as the bottom of the range hood frame, and is used to connect the smoke outlet of the oil smoke guide assembly.

[0007] Wherein, the two side plates include opposite front and rear ends, and the front and rear ends are provided with the same cover plate connecting structure to connect any one of the two cover plates.

[0008] Among them, the cover plate is provided with a side plate connecting structure, and the cover plate connecting structure and the side plate connecting structure are a buckle and a clamping hole respectively.

[0009] Wherein, the same cover plate fixing structure is arranged at two edge portions of the top plate close to the two cover plates to fix and connect any one of the two cover plates.

[0010] The cover plate is formed with a flange toward the top plate, the flange wraps around the edge of the top plate, and is fixedly connected to the top plate via a cover plate fixing structure.

[0011] The range hood frame further includes a deformable cover plate of a replaceable cover plate, and the distance from the deformable cover plate to the air inlet of the fan assembly is greater than the distance from the cover plate to the air inlet.

[0012] Among them, the front end and the rear end of the side plate far away from the air outlet installation port of the two side plates are respectively provided with a first wire protection groove and a second wire protection groove.

[0013] In order to solve the above technical problems, the present application proposes a range hood, which includes the range hood frame, fan assembly and oil fume guide assembly mentioned above.

[0014] Among them, the range hood frame includes a front surface, a rear surface and two side surfaces; the range hood also includes a decorative cover, and when the air inlet of the fan assembly in the range hood frame faces a first direction, the decorative cover is arranged on the front surface and the two side surfaces; when the air inlet of the fan assembly faces a second direction, the decorative cover is arranged on the rear surface and the two side surfaces.

[0015] The range hood further comprises a frame flange connected between the range hood frame and the oil fume guide assembly, and the frame flange is connected to the range hood frame by means of a stamping point connection.

[0016] The range hood frame and the range hood of the present application are characterized in that the range hood frame is formed with an installation space for installing a fan assembly; an air outlet installation port is formed on the top of the range hood frame for connecting the air outlet of the fan assembly; the bottom of the range hood frame is used to connect the smoke outlet of the oil fume guide assembly of the range hood, and the air inlet of the fan assembly, the installation space and the smoke outlet of the oil fume guide assembly are interconnected. Among them, when the air inlet of the fan assembly in the range hood frame faces a first direction, the range hood frame can be connected to a first type of oil fume guide assembly; when the air inlet of the fan assembly faces a second direction, the range hood frame can be connected to a second type of oil fume guide assembly; the first direction and the second direction are opposite. That is, through the installation method of the range hood frame, the air inlet of the fan assembly can be directed toward the first direction or the second direction to intake air, so as to meet the use requirements of different users and improve the universality and standardization of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1This is an exploded view of the range hood frame of the present application being assembled to the first structure of the range hood;

[0019] Figure 2 yes Figure 1 A structural schematic diagram of a range hood frame and a fan assembly is shown;

[0020] Figure 3 This is an exploded view of the range hood frame of the present application being assembled to the second structure of the range hood;

[0021] Figure 4 yes Figure 3 A structural schematic diagram of a range hood frame and a fan assembly is shown;

[0022] Figure 5 yes Figure 3 A partial stereoscopic view of the range hood frame shown;

[0023] Figure 6 yes Figure 1 The assembly drawing of the smoke exhaust fan frame structure shown;

[0024] Figure 7 yes Figure 6 A front view of the deformed cover plate shown;

[0025] Figure 8 yes Figure 7 A schematic cross-sectional view of AA is shown;

[0026] Fig. 9 yes Figure 8 A partial enlarged view of B shown;

[0027] Fig.10 yes Figure 1 The assembly drawing of the range hood frame and frame flange is shown;

[0028] Fig.11 yes Figure 1 The first structural schematic diagram of the range hood frame and the frame flange is shown;

[0029] Fig.12 yes Figure 1 A second structural schematic diagram of the range hood frame and the frame flange is shown;

[0030] Fig.13 yes Figure 1 The third structural schematic diagram of the range hood frame and the frame flange is shown.

[0031] Figure numbers: 1. range hood frame; 11. installation space; 12. side panel; 12a. first side panel; 12b. second side panel; 13. cover plate; 131. flange; 132. deformed cover plate; 14. top plate; 141. air outlet installation port; 15. first wire protection groove; 16. second wire protection groove; 2. fan assembly; 3. oil fume guide assembly; 4. cover plate connecting structure; 41. buckle; 5. side panel connecting structure; 51. clamping hole; 6. cover plate fixing structure; 7. decorative cover; 8. frame flange; 81. connecting hole; 82. folded edge. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present application, a range hood frame and a range hood provided by the invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is an exploded view of the range hood frame of the present application being assembled to the first structure of the range hood; Figure 2 yes Figure 1 A structural schematic diagram of a range hood frame and a fan assembly is shown; Figure 3 This is an exploded view of the range hood frame of the present application being assembled to the second structure of the range hood; Figure 4 yes Figure 3 A structural schematic diagram of the range hood frame and fan assembly is shown.

[0034] The range hood frame 1 of this embodiment is formed with an installation space 11, which is used to install the fan assembly 2 and provides an installation position for the fan assembly 2. An air outlet installation port 141 is formed on the top of the range hood frame 1, which is used to connect the air outlet of the fan assembly 2 so that the oil smoke from the air outlet of the fan assembly 2 can be discharged from the air outlet installation port 141. The bottom of the range hood frame 1 is used to connect the smoke outlet of the oil smoke guide assembly 3 of the range hood so that the oil smoke from the oil smoke guide assembly 3 comes out from the smoke outlet and enters the bottom of the range hood frame 1. The air inlet of the fan assembly 2, the installation space 11 and the smoke outlet of the oil smoke guide assembly 3 are interconnected, so that the waste burned by the stove and the oil smoke harmful to the human body generated during the cooking process flow through the smoke outlet of the oil smoke guide assembly 3, the installation space 11 and the air inlet in turn, and are discharged to the outside.

[0035] Since the smoke outlet positions of different oil fume guide components 3 are different, there will be certain differences in the positions of the air inlet and smoke outlet of the fan component 2. In order to enable the range hood frame 1 to match different types of oil fume guide components 3, in this embodiment, when the air inlet of the fan component 2 in the range hood frame 1 faces the first direction, the range hood frame 1 can be connected to the first type of oil fume guide component 3. When the air inlet of the fan component 2 in the range hood frame 1 faces the second direction, the range hood frame 1 can be connected to the second type of oil fume guide component 3. Among them, the first direction and the second direction are opposite. That is, through the installation method of the range hood frame 1, the air inlet of the fan component 2 is directed to the first direction or the second direction to meet the use needs of different users and improve the universality and standardization of the range hood.

[0036] The first direction and the second direction are as follows: Figure 1 As shown by arrows X and Y, arrow X is the first direction and arrow Y is the second direction. Arrow X can also be defined as the second direction and arrow Y as the first direction, which is not limited here. The first type of oil fume guide assembly 3 and the second type of oil fume guide assembly 3 have different structures and different smoke outlet positions.

[0037] For example, the first direction is the positive direction, the second direction is the negative direction, and when the range hood is T-shaped, Figure 1 As shown, the range hood frame 1 is connected to the first type of oil smoke guide assembly 3, and the air inlet of the fan assembly 2 takes in air from the positive direction. Figure 3 As shown, the range hood frame 1 is connected to the second oil fume guide assembly 3, and the air inlet of the fan assembly 2 takes in air from the reverse direction. The range hood frame 1 can meet the air intake in the positive direction of the fan assembly 2 of the conventional T-shaped range hood, and can also adapt to the air intake in the reverse direction of the fan assembly 2 of the 7-shaped range hood. Of course, the range hood can also be in other shapes, and the oil fume guide assembly 3 can also be in other shapes, which are not limited here.

[0038] Specifically, the bottom of the range hood frame 1 is a rotationally symmetrical structure, which can be rotated 180° around its rotation center and then overlap with itself, thereby meeting the needs of changing models of different types of range hoods. Figure 1 and 2 As shown; after rotating 180° through the rotational symmetry structure, the final state of the smoke machine frame 1 is as follows Figure 3 and Figure 4 shown.

[0039] See also Figure 5 , Figure 5 yes Figure 3 A partial stereoscopic view of the range hood frame shown.

[0040] Furthermore, combined with Figure 1 and Figure 3In order to make the range hood frame 1 coincide with itself after rotating 180° around its rotation center, the range hood frame 1 includes two side panels 12, two cover panels 13 and a top panel 14, wherein the structures of the two side panels 12 and the two cover panels 13 are the same. The two side panels 12 are arranged relatively spaced apart along the first direction; the two cover panels 13 are connected to the two side panels 12 and are arranged relatively spaced apart along the second direction; the top panel 14 is connected to the tops of the two side panels 12 and the two cover panels 13. The top panel 14, the two side panels 12 and the two cover panels 13 are arranged to form an installation space 11, and the air outlet installation opening 141 is installed on the top panel 14, and the bottoms of the two side panels 12 and the two cover panels 13 form the bottom of the range hood frame 1, which is used to connect the smoke outlet of the oil smoke guide assembly 3. The two side panels 12 and the top panel 14 are arranged in a U shape.

[0041] See also Figure 6 , Figure 7 , Figure 8 and Fig. 9 , Figure 6 yes Figure 1 The assembly drawing of the smoke exhaust fan frame structure shown; Figure 7 yes Figure 6 A front view of the deformed cover plate shown; Figure 8 yes Figure 7 A schematic cross-sectional view of AA is shown; Fig. 9 yes Figure 8 A partial enlarged view of B shown.

[0042] Specifically, during the installation of the range hood rack 1, in order to further make the range hood rack 1 coincide with itself after rotating 180° around its rotation center, the two side panels 12 include opposite front and rear ends, and the front and rear ends of the two side panels 12 need to be provided with the same cover plate connection structure 4. After the two side panels 12 and the top panel 14 rotate 180° around their rotation center, any one of the two cover plates 13 can be connected by the same cover plate connection structure 4, so that the range hood rack 1 can be universalized and standardized, thereby improving the installation efficiency of the range hood rack 1. The front end of the side panel 12 is the same as the first direction, and the rear end of the side panel 12 is the same as the second direction. The above-mentioned cover plate connection structure 4 can be any structure, as long as it can realize the connection of the two cover plates 13 to the two side panels 12 respectively.

[0043] Furthermore, combined with Figure 6 In order to ensure that the two cover plates 13 can be stably connected to the two side plates 12, the two cover plates 13 need to be provided with the same side plate connecting structure 5. Any one of the two cover plates 13 can be connected through the same side plate connecting structure 5, so that the range hood frame 1 can be universalized and standardized, thereby improving the installation efficiency of the range hood frame 1.

[0044] Specifically, in order to further improve the stability of the connection between the two cover plates 13 and the two side plates 12, the cover plate connection structure 4 and the side plate connection structure 5 are matched and connected. When the cover plate connection structure 4 and the side plate connection structure 5 are matched and connected, it is necessary to simultaneously meet the requirements that the cover plate connection structure 4 at the front and rear ends of the two side plates 12 are the same, and the side plate connection structure 5 of one cover plate 13 facing the second direction is the same as the side plate connection structure 5 of the other cover plate 13 facing the first direction; when the two side plates 12 and the top plate 14 rotate 180° around their centers, the two cover plates 13 can match the front and rear ends of the two side plates 12.

[0045] In actual practice, in order to match the cover plate 13 with the side plate 12, the positions of the cover plate connecting structure 4 and the side plate connecting structure 5 need to correspond to each other so that after the top plate 14 and the side plate 12 are rotated 180° around their centers, any cover plate 13 can be adapted to the side plate 12.

[0046] Furthermore, in order to improve the assembly efficiency of the two cover plates 13 and the two side plates 12, the cover plate connecting structure 4 on the side plate 12 is set as a buckle (not shown in the figure), and the side plate connecting structure 5 on the cover plate 13 is set as a clamping hole (not shown in the figure). The side plate 12 is directly clamped to the buckle of the cover plate 13 through the clamping hole to achieve quick installation of the cover plate 13 and the side plate 12.

[0047] In an alternative embodiment, if Figure 6 As shown, the cover plate connection structure 4 on the side plate 12 can be set as a clamping hole 51, and the side plate connection structure 5 on the cover plate 13 can be set as a buckle 41, and the cover plate 13 is directly clamped in the clamping hole 51 on the side plate 12 through the buckle 41. The buckle 41 and the clamping hole 51 can be of any structure, as long as the buckle 41 and the clamping hole 51 can be stably connected, and the structure is not limited.

[0048] In the actual process, in this embodiment, when buckles are provided on the side plate 12 and snap holes are provided on the cover plate 13, in order to improve the assembly efficiency of the cover plate 13 to the side plate 12, the buckles of the side plate 12 are arranged at an angle, and the free ends of the buckles face the top plate 14, that is, the buckles are arranged upwardly at an angle. When the cover plate 13 is installed on the side plate 12, it can be directly snapped onto the buckles on the side plate 12 through the snap holes on the cover plate 13, which is convenient for assembly.

[0049] In the actual process, in an alternative embodiment, when the side plate 12 is a card hole 51 and the cover plate 13 is a buckle 41, in order to further improve the assembly efficiency of the cover plate 13 to the side plate 12, the buckle 41 on the cover plate 13 is set at an angle, and the free end of the buckle 41 is toward the bottom of the range hood frame 1, that is, the buckle 41 is set at an angle downward, such as Figure 8 and Fig. 9As shown. When the cover plate 13 is installed on the side plate 12, when the free end of the buckle 41 just fits into the buckle hole 51, the buckle 41 can slide directly into the buckle hole 51 due to the weight of the cover plate 13 itself, which not only completes the quick assembly between the cover plate 13 and the side plate 12, but also saves effort. At the same time, the buckle 41 is set on the cover plate 13, and the buckle 41 can be completely hidden in the side plate 12, which improves the aesthetics of the range hood frame 1 and prevents the user from being scratched or the external decorative cover 7 from being damaged when the buckle 41 is exposed to the outside of the cover plate 13. Preferably, there are three buckles 41 on each side of the two cover plates 13, and six buckle holes 51 are set at the front and rear ends of the two side plates 12.

[0050] See also Figure 6 In one embodiment, when the cover plate 13 and the side plate 12 are matched with each other through the cover plate connection structure 4 and the side plate connection structure 5, the cover plate 13 may deform or damage the side plate connection structure 5 due to its own gravity, thereby affecting the connection between the side plate connection structure 5 and the cover plate connection structure 4. Therefore, in order to further improve the connection stability between the cover plate 13 and the side plate 12, the cover plate 13 is connected to the top plate 14 through the cover plate fixing structure 6.

[0051] Specifically, the same cover plate fixing structure 6 is provided at the two edge portions of the top plate 14 close to the two cover plates 13. Any one of the two cover plates 13 can be connected through the same cover plate fixing structure 6, so that the cover plate 13 can be covered on the side plate 12 through the top plate 14, thereby further improving the connection stability between the cover plate 13 and the side plate 12; at the same time, after the side plate 12 and the top plate 14 are rotated 180° around their centers, they can be connected to any cover plate 13, so that the range hood frame 1 can be universalized and standardized, thereby improving the installation efficiency of the range hood frame 1.

[0052] Combination Figure 1 and Figure 3 , continue reading Figure 6 In order to further improve the stability and assembly efficiency of the connection between the cover plate 13 and the side plate 12, a flange 131 is formed on the cover plate 13 facing the top plate 14. The flange 131 is wrapped around the edge of the top plate 14 and then fixedly connected to the top plate 14 through the cover plate fixing structure 6 to stably connect the cover plate 13 to the side plate 12 to improve the stability of the range hood frame 1.

[0053] At the same time, due to the existence of the flange 131, when the side panel connecting structure 5 on the cover plate 13 is assembled to the cover plate connecting structure 4 on the side panel 12, the flange 131 can play a role of pre-positioning, and then the side panel connecting structure 5 is connected to the cover plate connecting structure 4, thereby improving the assembly efficiency of the cover plate 13 and the side panel 12, thereby improving the assembly efficiency of the range hood frame 1.

[0054] The flange 131 may be provided only at the edge of the cover plate 13 facing the top plate 14, or may be provided at the edge of the cover plate 13 facing the top plate 14 and at the front end and / or rear end of the side plate 12. The flange 131 may be provided intermittently at the edge of the cover plate 13 facing the top plate 14 and at the front end and / or rear end of the side plate 12.

[0055] In the actual process, in order to simplify the cover plate fixing structure 6 and save costs, the cover plate fixing structure 6 is a screw and a nut. A screw hole is opened on the flange 131, and a top plate hole is opened at the position corresponding to the screw hole on the top plate 14. The screw passes through the screw hole on the flange 131 and the top plate hole on the top plate 14, and is fixed by bolts to achieve a stable connection between the cover plate 13 and the top plate 14, and is also convenient for disassembly and installation. Of course, the cover plate fixing structure 6 can also be other structures, as long as it can meet the connection between the cover plate 13 and the top plate 14, and it is not limited here.

[0056] See also Figure 6 In one embodiment, since the structures of the cover plates 13 in different types of range hoods may be different, in order to match the different structures of the cover plates 13, the range hood frame 1 also includes a deformable cover plate 132, which can be replaced with the original cover plate 13, so as to improve the universality and standardization of the range hood frame 1 and meet various requirements. Figure 6 As shown, there are original cover plate 13 and deformed cover plate 132. According to different types of range hoods, cover plate 13 or deformed cover plate 132 can be selected. The deformed cover plate 132 is the cover plate 13 in different range hoods. The deformed cover plate 132 has different functional properties to meet the needs of different users and improve the universality and standardization of range hoods.

[0057] In order to install the deformed cover plate 132 on the side plate 12, a side plate connection structure 5 identical to the original cover plate 13 can be provided on the deformed cover plate 132, so that the deformed cover plate 132 can replace the original cover plate 13, so as to obtain a range hood frame 1 with different functional properties. For example, when a deformed cover plate 132 is installed on the side plate 12, the distance from the deformed cover plate 132 to the air inlet of the fan assembly 2 can be greater than the distance from the original cover plate 13 to the air inlet, so as to adjust the distance between the deformed cover plate 132 and the air inlet of the fan assembly 2, thereby meeting the use requirements of different range hoods.

[0058] The above-mentioned deformable cover plate 132 can be thickened in the first direction on the original cover plate 13, and then a groove is opened on the end surface of the change-direction cover plate 13 close to the side plate 12, so as to increase the distance between the deformable cover plate 132 and the air inlet of the fan assembly 2 in the first direction, so as to match the different performance requirements of different range hoods, meet the use requirements of different users, and improve the universalization and standardization of range hoods. Of course, the deformable cover plate 132 can also be other structures, as long as it can meet the requirements of the deformable cover plate 132 being assembled on the side plate 12.

[0059] In one embodiment, review Figure 1 , Figure 2 , Figure 3 and Figure 4 Since the top plate 14 is provided with electrical components, the range hood needs to have a line, one end of which is connected to the electrical components and the other end is connected to the external circuit. In order to hide the range hood line in the range hood frame 1, the side plate 12 is provided with a first wire protection groove 15 and a second wire protection groove 16, which can be used to store the line to prevent the line from being exposed to the external environment. One end of the first wire protection groove 15 and the second wire protection groove 16 are close to the top plate 14, and the other end is close to the bottom of the range hood frame 1.

[0060] During the rotation of the range hood frame 1, the position of the air outlet mounting port 141 on the top plate 14 changes relative to the position of the air outlet mounting port 141 in the initial state, resulting in a change in the position of the electrical components on the top plate 14 relative to the position of the electrical components in the initial state. Since the electrical components are arranged between the air outlet mounting port 141 and a side plate 12 away from the air outlet mounting port 141, the front and rear ends of the side plate 12 away from the air outlet mounting port 141 of the two side plates 12 are respectively provided with a first wire protection groove 15 and a second wire protection groove 16 for the passage of lines. When the range hood frame 1 rotates, since the air outlet mounting port 141 and the electrical components have changed, the first wire protection groove 15 and the second wire protection groove 16 are always arranged on the side plate 12 away from the air outlet mounting port 141.

[0061] For example, the two side plates 12 include a first side plate 12a and a second side plate 12b, and the first wire protection groove 15 and the second wire protection groove 16 are always disposed at the front end and the rear end of the second side plate 12b.

[0062] In an alternative embodiment, it is also possible to consider providing a third wire protection groove (not shown in the figure) at the front end of the first side panel 12a and a fourth wire protection groove (not shown in the figure) at the rear end of the second side panel 12b to hide and protect some lines of the electrical components.

[0063] The first wire protection groove 15 is formed by a groove opened at one end of the top plate 14 close to the side plate 12 and a curved edge of the side plate 12 close to the cover plate 13. Similarly, the structure of the second wire protection groove 16 is the same as that of the first wire protection groove 15. In order to ensure that the line position does not change after the range hood frame 1 rotates, the first wire protection groove 15 and the second wire protection groove 16 are arranged opposite to each other in the first direction or the second direction.

[0064] Please continue reading Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the range hood frame 1 can be rotated 180° around its center as a whole and then overlap with itself. The range hood frame 1 can be turned over after the two side panels 12, two cover panels 13 and top panel 14 are assembled; or the two side panels 12, two cover panels 13 and top panel 14 are integrally formed and then rotated 180° around their center.

[0065] In this embodiment, only the top plate 14 and the two side plates 12 of the range hood frame 1 rotate 180° around their centers. For example, the top plate 14 and the two side plates 12 rotate 180° around their centers, while the structures of the two cover plates 13 do not flip, that is, they remain in the original installation position. The top plate 14 and the two side plates 12 can be assembled or integrally formed.

[0066] Regardless of whether the range hood frame 1 is rotated 180° around its center as a whole, or only the top plate 14 and the two side plates 12 are rotated 180° around their center, the side plate connection structure 5 on the cover plate 13 must match the cover plate connection structure 4 on the side plate 12.

[0067] Since the fan assembly 2 is installed in the installation space 11 of the range hood frame 1 through the fan bracket, when part of the fan bracket is installed on the cover plate 13, and only the top plate 14 and the two side plates 12 in the range hood frame 1 are rotated 180°, corresponding identical fan brackets need to be set on the two cover plates 13 to meet the installation requirements of the fan assembly 2.

[0068] In this embodiment, the range hood frame is formed with an installation space for installing the fan assembly; the top of the range hood frame is formed with an air outlet installation port for connecting the air outlet of the fan assembly; the bottom of the range hood frame is used to connect the smoke outlet of the oil fume guide assembly of the range hood, and the air inlet of the fan assembly, the installation space and the smoke outlet of the oil fume guide assembly are interconnected. Among them, when the air inlet of the fan assembly in the range hood frame faces the first direction, the range hood frame can be connected to the first type of oil fume guide assembly; when the air inlet of the fan assembly faces the second direction, the range hood frame can be connected to the second type of oil fume guide assembly; the first direction and the second direction are opposite. That is, through the installation method of the range hood frame, the air inlet of the fan assembly is realized to face the first direction or the second direction to intake air, so as to meet the use needs of different users and improve the universality and standardization of the range hood.

[0069] See also Figure 1 and Figure 3 In this embodiment, the range hood includes a range hood frame 1, a fan assembly 2 and an oil fume guide assembly 3. It should be noted that the range hood frame 1 in this embodiment is the range hood frame 1 described in the above embodiment, which will not be described in detail here.

[0070] Specifically, the range hood frame 1 includes a front surface, a rear surface and two side surfaces, wherein the front surface and the rear surface are arranged on two cover plates 13, and the two side surfaces are arranged on two side plates 12. The front surface is the same as the first direction, and the rear surface is the same as the second direction.

[0071] In one embodiment, the range hood further includes a decorative cover 7, which can protect the range hood frame 1 and the appearance. Since there are two ways for the range hood frame 1 to rotate 180° around its center, one is that the range hood frame 1 rotates 180° around its center as a whole, that is, when the air inlet of the fan assembly 2 in the range hood frame 1 faces the first direction, the decorative cover 7 is provided on the front surface and the two side surfaces. When the range hood frame 1 rotates 180° around its center as a whole, the air inlet of the fan assembly 2 faces the second direction, the rear surface of the range hood frame 1 is located at the position of its front surface, and its front surface is located at the position of its rear surface, that is, the decorative cover 7 is provided on the rear surface and the two side surfaces.

[0072] Considering that the decorative cover 7 needs to cover the front surface of the range hood frame 1 or the rear surface of the range hood frame 1, corresponding fixing structures need to be provided on both cover plates 13 to mount the decorative cover 7 to the range hood frame 1 through the fixing structures.

[0073] In another range hood frame 1, only the top plate 14 and two side plates 12 rotate 180° around their center, and the two cover plates 13 do not need to rotate, so the decorative cover 7 only needs to be arranged on the front surface and two side surfaces of the range hood frame 1. The above fixing structure only needs to be arranged on the rear surface of the range hood frame 1.

[0074] The fixing structure can be any structure as long as it can achieve a stable connection between the decorative cover 7 and the range hood frame 1. In the actual process, in order to simplify the fixing structure and save costs, the fixing structure can be screws and nuts. By opening a number of screw holes on the decorative cover 7, and opening connection holes corresponding to the above-mentioned number of screw holes on the cover plate 13 of the range hood frame 1, the screws pass through the screw holes of the decorative cover 7 and the connection holes of the cover plate 13 in turn, and are locked by nuts, so as to achieve a stable connection between the decorative cover 7 and the range hood frame 1, and also facilitate disassembly.

[0075] See also Fig.10 , Fig.11 , Fig.12 and Fig.13 , Fig.10 yes Figure 1 The assembly drawing of the range hood frame and frame flange is shown; Fig.11 yes Figure 1 The first structural schematic diagram of the range hood frame and the frame flange is shown; Fig.12 yes Figure 1 A second structural schematic diagram of the range hood frame and the frame flange is shown; Fig.13 yes Figure 1 The third structural schematic diagram of the range hood frame and the frame flange is shown.

[0076] In one embodiment, the range hood further comprises a frame flange 8, which is connected between the range hood frame 1 and the oil fume guide assembly 3, and the top plate 14 is arranged opposite to the frame flange 8, wherein the frame flange 8 is connected to the range hood frame 1 by a stamping point connection method to improve the connection strength between the range hood frame 1 and the frame flange 8. Due to the different types of range hoods, the structure of the frame flange 8 is also different, that is, the range hood frame 1 equipped with the fan assembly 2 can be matched with different types of frame flanges 8 to meet the needs of different users, meet the needs of rapid model change, and improve the universality and standardization of range hoods.

[0077] like Fig.10 As shown, the bottom of the range hood frame 1 can be connected to different frame flanges 8 to assemble different frame flanges 8, so as to realize the assembly of different frame flanges 8, thereby improving the universalization and standardization of the range hood. Specifically, the frame flange 8 is connected to the range hood frame 1 through a TOX riveting tool. When the bottom size of the range hood frame 1 is adapted to the frame flange 8, the range hood frame 1 can be riveted to the frame flange 8 through the TOX riveting tool.

[0078] TOX riveting refers to a process of gas-liquid force-enhanced stamping in which two plates are connected together by forming a circular connection point at the extrusion point based on the extrusion plastic deformation of the plate material itself.

[0079] Furthermore, a connecting hole 81 is provided in the middle of the frame flange 8, and the connecting hole 81 is connected to the smoke outlet of the oil smoke guide assembly 3. At least three folded edges 82 are provided around the outer periphery of the frame flange 8, and at least three folded edges 82 are arranged toward the top plate 14, wherein the frame flange 8 is riveted to the bottom of the two side plates 12 and the bottom of a cover plate 13 through at least three folded edges 82 respectively by TOX riveting tooling, so that the bottom of the range hood frame 1 is riveted in at least three folded edges 82 of the frame flange 8, so that the range hood frame 1 can be assembled with the frame flange 8. The number and position of the riveting points can be determined according to actual conditions and are not limited here. Preferably, the frame flange 8 is surrounded by three folded edges 82, and the three folded edges 82 are riveted to the bottom of the two side plates 12 and the bottom of a cover plate 13 to achieve matching between the bottom of the range hood frame 1 and the frame flange 8.

[0080] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A range hood frame, characterized in that: The range hood frame is formed with an installation space for installing a fan assembly; An air outlet installation opening is formed on the top of the range hood frame for connecting to the air outlet of the fan assembly; The bottom of the range hood frame is used to connect to the smoke outlet of the oil fume guide assembly of the range hood, and the air inlet of the fan assembly, the installation space and the smoke outlet of the oil fume guide assembly are connected to each other; Among them, when the air inlet of the fan assembly in the range hood frame faces a first direction, the range hood frame can be connected to a first type of oil fume diversion assembly; when the air inlet of the fan assembly faces a second direction, the range hood frame can be connected to a second type of oil fume diversion assembly; the first direction and the second direction are opposite.

2. The range hood frame according to claim 1, characterized in that: The bottom of the range hood frame is a rotationally symmetrical structure, and coincides with itself after rotating 180° around its rotation center.

3. The range hood frame according to claim 1, characterized in that: The range hood frame comprises: Two side plates are arranged relatively and spaced apart along a first direction; Two cover plates, both connected to the two side plates, and arranged relatively spaced apart along the second direction; A top plate connected to the tops of the two side plates and the two cover plates, and forming the installation space with the two side plates and the two cover plates; the air outlet installation port is formed on the top plate; The bottoms of the two side plates and the two cover plates serve as the bottom of the range hood frame and are used to connect to the smoke outlet of the oil smoke guide assembly.

4. The range hood frame according to claim 3, characterized in that: The two side plates include opposite front and rear ends, and the front and rear ends are provided with the same cover plate connecting structure to connect any one of the two cover plates.

5. The range hood frame according to claim 4, characterized in that: The cover plate is provided with a side plate connecting structure, and the cover plate connecting structure and the side plate connecting structure are respectively a buckle and a clamping hole.

6. The range hood frame according to claim 3, characterized in that: The top plate is provided with the same cover plate fixing structure at two edge portions close to the two cover plates so as to fix and connect any one of the two cover plates.

7. The range hood frame according to claim 6, characterized in that: The cover plate is formed with a flange toward the top plate, the flange is covered on the edge of the top plate, and is fixedly connected to the top plate through the cover plate fixing structure.

8. The range hood frame according to claim 3, characterized in that: The range hood frame further comprises a deformable cover plate which can replace the cover plate, and the distance between the deformable cover plate and the air inlet of the fan assembly is greater than the distance between the cover plate and the air inlet.

9. The range hood frame according to claim 3, characterized in that: A first wire protection groove and a second wire protection groove are respectively provided at the front end and the rear end of one of the side plates away from the air outlet installation port.

10. A range hood, characterized in that: The range hood comprises a range hood frame, a fan assembly and an oil fume guide assembly according to any one of claims 1 to 9.

11. The range hood according to claim 10, characterized in that: The range hood frame includes a front surface, a rear surface and two side surfaces; the range hood also includes a decorative cover, and when the air inlet of the fan assembly in the range hood frame faces a first direction, the decorative cover is arranged on the front surface and the two side surfaces; when the air inlet of the fan assembly faces a second direction, the decorative cover is arranged on the rear surface and the two side surfaces.

12. The range hood according to claim 10, characterized in that: The range hood further comprises a frame flange connected between the range hood frame and the oil fume guide assembly, and the frame flange is connected to the range hood frame by a stamping point connection.

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