Case assembly and range hood

Abstract

The utility model provides a case assembly and a range hood. The case assembly comprises a range hood back plate and a volute, the range hood back plate and the volute define a mounting space with a top opening, the end, where the top opening is located, of the volute is provided with a first edge, a second edge and a third edge, the first edge is opposite to the range hood back plate, and the second edge is opposite to the third edge. The second edge and the third edge are connected between the first edge and the range hood back plate, so that the first edge, the second edge, the third edge and the range hood back plate are enclosed to form a top opening. According to the case assembly provided by the utility model, no distance exists between the top opening of the mounting space and the back plate of the range hood in the front-back direction, so that the whole case assembly can have smaller thickness in the front-back direction. Moreover, the range hood back plate can replace a volute bottom plate in a conventional volute, the volute is directly connected to the range hood back plate, and no distance exists between the whole volute and the range hood back plate in the front-back direction, so that the thickness of the whole case assembly in the front-back direction can be smaller.

Description

Technical Field

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

[0002] The chassis component has become one of the indispensable kitchen appliances in people's daily life. The chassis component can quickly remove the fumes generated by users during cooking, which can reduce pollution, purify the air, and greatly improve people's quality of life.

[0003] A volute is usually provided in the chassis assembly, and an opening is usually provided at the top of the volute, and the opening at the top of the volute can form an air outlet of the chassis assembly. However, in the existing chassis assembly, there is a gap between the top opening of the volute and the back plate of the range hood in the front-to-back direction, which causes the existing chassis assembly to be too thick in the front-to-back direction. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a chassis assembly is provided. The chassis assembly includes a range hood back plate and a volute, the range hood back plate and the volute are enclosed to form an installation space with a top opening, the volute has a first side, a second side and a third side at one end where the top opening is located, the first side is opposite to the range hood back plate, the second side is opposite to the third side, and the second side and the third side are connected between the first side and the range hood back plate so that the first side, the second side, the third side and the range hood back plate are enclosed to form a top opening.

[0005] In the chassis assembly provided by the utility model, the volute and the range hood back plate are enclosed to form an installation space with a top opening, and the top opening of the installation space is enclosed by the first side, the second side, the third side and the range hood back plate, so there is no spacing between the top opening and the range hood back plate in the front-to-back direction, and the chassis assembly as a whole can have a smaller thickness in the front-to-back direction. Moreover, the volute and the range hood back plate are enclosed to form the installation space, and the range hood back plate can replace the volute bottom plate in the conventional volute, and the volute is directly connected to the range hood back plate, and there is no spacing between the volute as a whole and the range hood back plate in the front-to-back direction, and the chassis assembly as a whole can have a smaller thickness in the front-to-back direction.

[0006] Exemplarily, the volute includes a surrounding body portion and a cover body portion, a first side is formed on the cover body portion, and a second side and a third side are respectively formed at two ends of the surrounding body portion along a predetermined extension direction, wherein the surrounding body portion has a first connecting side and a second connecting side that are relatively arranged between the end of the second side and the end of the third side, and the first connecting side and the second connecting side both extend along the predetermined extension direction, the first connecting side is connected to the back plate of the range hood, and the second connecting side is connected to the cover body portion. The first connecting side can be considered as a connecting line connecting the volute to the back plate of the range hood, and the first connecting side surrounds the contour of the volute, so that the connection of the volute to the back plate of the range hood is more stable, so that the chassis assembly as a whole can be more stable, and the volute is not easy to fall off. The second connecting side is connected to the cover body portion, which is equivalent to the surrounding body portion being arranged along the edge of the cover body portion, such that the surrounding body portion and the cover body portion can be an integral part, such a volute structure can be simpler, and the overall cost can be lower.

[0007] For example, a recessed portion is formed on the inner side surface of the range hood back plate toward the outside of the chassis assembly, and the first connecting edge is connected to the recessed portion and is located in the recessed portion. Since the first connecting edge is connected to the recessed portion and can be located in the recessed portion, the provision of the recessed portion can facilitate the positioning of the volute, so that the connection of the volute to the range hood back plate can be simpler and more convenient, and the overall installation process of the chassis assembly is also simpler.

[0008] Exemplarily, the recessed portion has a positioning side wall extending along a predetermined extension direction, and the first connecting side abuts against the positioning side wall. Such a recessed portion can make it easier and more convenient to connect the volute to the back plate of the range hood, and the installation process of the entire chassis assembly can also be simpler.

[0009] For example, the recessed portion has a mounting surface facing the inside of the chassis assembly, and the first connecting edge is provided with a flange parallel to the mounting surface and extending toward the outside of the mounting space, and the flange is located in the recessed portion and connected to the mounting surface. The provision of the flange can increase the connection area between the surrounding body of the volute and the back plate of the range hood, so that the connection of the volute to the back plate of the range hood can be more stable, and the chassis assembly as a whole can also be more stable. Moreover, the provision of the flange can make it easier for the surrounding body of the volute to be connected to the back plate of the range hood.

[0010] For example, the recessed portion has a positioning side wall extending along a predetermined extension direction, and the flange abuts against the positioning side wall. Such a recessed portion can make it easier and more convenient to connect the volute to the back plate of the range hood, and the installation process of the entire chassis assembly can also be simpler.

[0011] For example, a plurality of threaded holes are provided on the flange, a plurality of threaded matching holes are provided on the mounting surface, and the plurality of threaded holes and the plurality of threaded matching holes are connected one-to-one. The flange can be connected to the mounting surface by threaded connection, so that it is easier to connect the volute to the back plate of the range hood. By connecting the plurality of threaded holes and the plurality of threaded matching holes one-to-one, the volute can be connected to the back plate of the range hood more stably.

[0012] Exemplarily, the chassis assembly includes a connecting member, the connecting member has a first connecting portion, a second connecting portion and a third connecting portion, the second connecting portion and the third connecting portion are respectively connected to two ends of the first connecting portion, the first connecting portion is connected to the first side, the second connecting portion is connected to the second side, and the third connecting portion is connected to the third side. The volute can be connected to the range hood top plate of the chassis assembly through the connecting member. The arrangement of the connecting member can make the connection of the volute to the range hood top plate more stable.

[0013] Exemplarily, a mounting portion having an accommodating cavity is formed on the back plate of the range hood, which is recessed toward the inside of the installation space. The accommodating cavity is located outside the installation space. A mounting through hole is provided on the mounting portion, and a motor is passed through the mounting through hole. A mounting portion recessed toward the inside of the installation space is formed on the back plate of the range hood. The motor is directly passed through the mounting through hole on the mounting portion. This is equivalent to directly connecting the motor to the back plate of the range hood without the need to provide a motor bracket used to fix the motor in a conventional chassis assembly. The thickness of such a chassis assembly in the front-to-back direction can naturally be thinner. In addition, since the motor is passed through the mounting through hole, that is, the motor can pass through the mounting through hole from the outside to the inside, a part of the motor can be located in the installation space, so that the part of the motor located outside the installation space can occupy a smaller space, and the setting of the motor occupies less space in the front-to-back direction, so that the thickness of the chassis assembly as a whole in the front-to-back direction can be further thinner.

[0014] For example, the motor is divided into a first part and a second part by the mounting through hole, the first part is located in the accommodating cavity, and the second part is located in the mounting space. The mounting portion is formed on the back plate of the range hood to be recessed toward the inside of the mounting space, and the first part of the motor is located in the accommodating cavity formed by the mounting portion, that is, the motor is not arranged beyond the outer side of the back plate of the range hood away from the mounting space, so that the motor in the chassis assembly occupies less space in the front-to-back direction, so that the overall thickness of the chassis assembly in the front-to-back direction can be thinner.

[0015] For example, an assembly groove is formed on the back plate of the range hood, which is recessed toward the installation space. All components on the chassis assembly that need to be assembled outside the installation space can be arranged in the assembly groove. The arrangement of the assembly groove can make it unnecessary for the chassis assembly to reserve an assembly space on the outside of the back plate of the range hood away from the installation space, so that the overall space occupied by the chassis assembly in the front-to-back direction can be smaller and the overall thickness can be thinner.

[0016] Exemplarily, the assembly groove has a first end and a second end that are arranged opposite to each other, the assembly groove is connected to the accommodating cavity at the first end, and a through hole is arranged on the second end, and the through hole passes through the back plate of the range hood. Some components arranged on the outside of the back plate of the range hood can be assembled with components located in the storage cavity through the assembly groove. For example, the wire connected to the first part needs to be connected to the power supply in the storage cavity, so the wire can enter the storage cavity through the through hole on the assembly groove. The provision of the assembly groove can facilitate the assembly of components on the outside of the back plate of the range hood with components on the inside of the back plate of the range hood, and such a chassis assembly has a simple structure and is easy to implement.

[0017] For example, the range hood back plate has a volute region and a peripheral region outside the volute region, the first end is arranged in the volute region, and the second end is arranged on the peripheral region. With such an assembly groove, the internal assembly of the chassis assembly as a whole can be more regular, for example, the internal wiring of the chassis assembly as a whole can be more regular, thereby avoiding safety hazards caused by messy wiring.

[0018] Exemplarily, the motor includes a first part located in the accommodating cavity, and the first part is connected with a wire, and the wire is led out through the assembly groove. The wire connected to the first part is led out through the assembly groove, so there is no need to reserve space on the outside of the back plate of the range hood away from the installation space to arrange these wires, and the wire connected to the first part is led out through the assembly groove, and the assembly groove can play a role in wire management, so that the wires connected to the first part can be prevented from being too messy.

[0019] For example, the bottom of the range hood back plate extends away from the range hood back plate to form a range hood bottom plate. Such a range hood bottom plate can be an integral part with the range hood back plate, for example, the range hood back plate and the range hood bottom plate can be formed by an integral stretching process, so that the connection between the range hood back plate and the range hood bottom plate is simpler and the overall cost can also be lower.

[0020] For example, a lower air inlet plate is connected to a side of the range hood bottom plate away from the range hood back plate, and the lower air inlet plate has a first side connected to the range hood bottom plate and a second side away from the range hood bottom plate, and from the first side to the second side, the lower air inlet plate is inclined in a direction away from the range hood back plate. When the chassis assembly is applied to the range hood, such an inclined lower air inlet plate can avoid the user's operating area when cooking, and the user's experience can be better. Such a lower air inlet plate can be aimed at the user's cooking area, so that the oil fume absorption effect of cooking can be better.

[0021] For example, an oil leakage hole is provided on the volute, and the oil leakage hole collects oil droplets on the volute in the installation space. The oil droplets in the volute flow to the oil leakage hole under the action of gravity, and these oil droplets can flow out of the volute through the oil leakage hole, thereby avoiding excessive oil pollution in the volute.

[0022] According to another aspect of the utility model, a range hood is provided. The range hood includes a smoke baffle and any one of the above-described chassis components, the chassis component also includes a range hood top plate and a range hood side plate, the range hood top plate and the range hood side plate are respectively connected to the range hood back plate, and the range hood back plate, the range hood top plate and the range hood side plate enclose a storage cavity with a front opening, and the smoke baffle shields at least a portion of the front opening.

[0023] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0024] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0026] Figure 1 is a perspective view of a range hood according to an exemplary embodiment of the present utility model;

[0027] Figure 2 for Figure 1 The partial structural stereogram of the range hood shown, in which the air inlet plate and the smoke baffle are hidden;

[0028] Figure 3 A perspective view of a partial structure of a chassis assembly according to an exemplary embodiment of the utility model;

[0029] Figure 4 for Figure 3 The shown three-dimensional view of the chassis component part structure observed from another perspective;

[0030] Figure 5 for Figure 3 A front view of a portion of the chassis assembly structure shown;

[0031] Figure 6 for Figure 3 An exploded view of a portion of the chassis assembly structure shown;

[0032] Figure 7 A perspective view of a volute according to an exemplary embodiment of the present invention;

[0033] Figure 8 A perspective view of a partial structure of a chassis assembly according to an exemplary embodiment of the present utility model; and

[0034] Fig. 9 for Figure 8 The shown is a stereoscopic view of a partial structure of the chassis assembly when viewed from another perspective.

[0035] The above drawings include the following reference numerals:

[0036] 10. Chassis assembly; 100. Back plate of range hood; 110. Recessed portion; 111. Positioning side wall; 112. Mounting surface; 120. Assembly groove; 121. First end; 122. Second end; 1221. Through hole; 130. Mounting portion; 131. Accommodating cavity; 132. Mounting through hole; 140. Volute area; 150. Peripheral area; 200. Volute; 210. Body portion; 211. Second side; 212. Third side; 213. First connecting side; 2131. Flanged edge; 214. Second connecting side; 220, cover body; 221, first side; 300, connector; 310, first connection part; 320, second connection part; 330, third connection part; 400, range hood bottom plate; 500, installation space; 600, air inlet plate; 610, front air inlet plate; 620, lower air inlet plate; 621, first side; 622, second side; 700, motor; 710, first part; 720, second part; 800, range hood top plate; 900, range hood side panel; 20, range hood; 21, smoke baffle; 22, storage cavity. DETAILED DESCRIPTION

[0037] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0038] According to one aspect of the present invention, a chassis assembly is provided. The chassis assembly can be applied to any suitable device, including but not limited to a range hood. Therefore, according to another aspect of the present invention, a range hood is provided, and the range hood can include any chassis assembly to be described below.

[0039] See also Figure 1 and Figure 2, the chassis assembly 10 may include a range hood back panel 100, a range hood top panel 800, and a range hood side panel 900. The chassis assembly 10 may include a range hood housing, and the range hood back panel 100, the range hood top panel 800, and the range hood side panel 900 may be parts of the range hood housing, respectively. The range hood top panel 800 and the range hood side panel 900 may be connected to the range hood back panel 100, respectively, and the range hood back panel 100, the range hood top panel 800, and the range hood side panel 900 may enclose a storage cavity 22 with a front opening. An air inlet plate 600 may be provided at the front opening of the storage cavity 22. In the embodiment shown in the figure, the air inlet plate 600 may include a front air inlet plate 610 and a lower air inlet plate 620, which will be described in detail below.

[0040] The smoke machine 20 may include a smoke baffle 21, which may shield at least a portion of the front opening. Figure 1 As shown, the smoke shield 21 can block the front air intake plate 610. For example, the smoke shield 21 can be rotatably connected to the range hood top plate 800, and the smoke shield 21 can be rotated between an open position and a closed position relative to the range hood top plate 800. When the smoke shield 21 is in the closed position, the smoke shield 21 can block the front air intake plate 610, and the external oil smoke cannot enter the storage cavity 22 from the front air intake plate 610. When the smoke shield 21 is in the open position, the external oil smoke can enter the storage cavity 22 from the front air intake plate 610.

[0041] See also Figure 3 , Figure 4 and Figure 5 The chassis assembly 10 may include a range hood back plate 100 and a volute 200. When the chassis assembly 10 is installed, the range hood back plate 100 may be connected to the installation location, for example, the range hood back plate 100 may be connected to a wall, so that the chassis assembly 10 is installed at the installation location. A motor and an impeller may be provided in the volute 200. When the motor is turned on, the impeller will be driven to rotate, and the airflow generated may drive external oil smoke into the volute 200 and be discharged from the air outlet of the chassis assembly 10, so that the chassis assembly 10 can achieve the function of extracting oil smoke.

[0042] In a conventional volute, the volute generally includes a volute bottom plate, a surrounding body, and a volute top plate, which together form an installation space with an opening at the top. In the case assembly 10 provided by the present invention, the range hood back plate 100 and the volute 200 can be combined to form an installation space 500 with an opening at the top. The installation space 500 is formed by the volute 200 and the range hood back plate 100, which means that the volute 200 may not have a volute bottom plate in a conventional volute, for example, the volute 200 may include a cover body 220 and a surrounding body 210, and such a volute 200 may be an open structure, the volute 200 is connected to the range hood back plate 100, and the range hood back plate 100 may replace the volute bottom plate in a conventional volute, which is equivalent to the range hood back plate 100 covering the side of the volute 200 opposite to the cover body 220, so that the volute 200 and the range hood back plate 100 are enclosed together to form the installation space 500, and the range hood back plate 100 may form a part of the cavity wall of the installation space 500. The motor and impeller arranged in the volute 200 may be arranged in the installation space 500. In this way, in the chassis assembly 10, the range hood back plate 100 can replace the volute bottom plate in the conventional volute, and the volute 200 is directly connected to the range hood back plate 100, so the overall thickness in the front-to-back direction can naturally be smaller.

[0043] See also Figure 6 and Figure 7 , the volute 200 may have a first side 221, a second side 211, and a third side 212 at one end where the top opening is located. The top opening may have four sides, wherein the first side 221, the second side 211, and the third side 212 are formed on the volute 200, and the fourth side may be formed on the range hood back plate 100, that is, the first side 221, the second side 211, and the third side 212 on the volute 200 and the range hood back plate 100 may enclose and form the top opening of the installation space 500. The first side 221 may be opposite to the range hood back plate 100, the second side 211 may be opposite to the third side 212, and the second side 211 and the third side 212 may be connected between the first side 221 and the range hood back plate 100 so that the first side 221, the second side 211, the third side 212, and the range hood back plate 100 enclose and form the top opening. Since the top opening is formed by the first side 221, the second side 211, the third side 212 and the range hood back plate 100, there may be no spacing between the top opening and the range hood back plate 100 in the front-to-back direction. The air outlet of the range hood 20 is usually arranged on the range hood top plate 800, and the top opening can form the air outlet of the range hood 20, so the air outlet of the range hood 20 on the range hood top plate 800 can be arranged corresponding to the position of the top opening, and in such a chassis assembly 10, the air outlet of the range hood 20 can be arranged on the range hood top plate 800 near the edge of the range hood back plate 100, that is, the edge of the air outlet of the range hood 20 can overlap with the edge of the range hood top plate 800, so that the overall thickness of the chassis assembly 10 in the front-to-back direction can naturally be smaller.

[0044] In the chassis assembly provided by the utility model, the volute 200 and the range hood back plate 100 are enclosed to form an installation space 500 with a top opening, and the top opening of the installation space 500 is enclosed by the first side 221, the second side 211, the third side 212 and the range hood back plate 100, so there is no spacing between the top opening and the range hood back plate 100 in the front-to-back direction, and such a chassis assembly 10 as a whole can also have a smaller thickness in the front-to-back direction. Moreover, the volute 200 and the range hood back plate 100 are enclosed to form the installation space 500, and the range hood back plate 100 can replace the volute bottom plate in the conventional volute, and the volute 200 is directly connected to the range hood back plate 100 and there is no spacing between the volute 200 as a whole and the range hood back plate 100 in the front-to-back direction, and such a chassis assembly 10 as a whole can have a smaller thickness in the front-to-back direction.

[0045] In one embodiment of the present invention, see Figure 6 and Figure 7, the volute 200 may include a body portion 210 and a cover portion 220. The body portion 210 and the cover portion 220 may be integrally formed, for example, the body portion 210 and the cover portion 220 may be an integral piece, and may be formed by an integral stretching process. The body portion 210 may extend along a predetermined extension direction, and the predetermined extension direction may extend along a curve. It may be considered that the contour line of the body portion 210 projected on the range hood back plate 100 is a curve in the predetermined extension direction. The first edge 221 may be formed on the cover portion 220, for example, the first edge 221 may be formed on the top of the cover portion 220, and the first edge 221 may be arranged opposite to the range hood back plate 100. The second edge 211 and the third edge 212 may be formed at both ends of the body portion 210 along the predetermined extension direction, respectively. Since the second side 211 can be opposite to the third side 212, and the second side 211 and the third side 212 can be connected between the first side 221 and the range hood back plate 100, it can be considered that the body portion 210 is located between the cover portion 220 and the range hood back plate 100. The body portion 210 can be a curved plate-like structure with the second side 211 as a starting point, extending to the third side 212 along a predetermined extension direction, and the third side 212 as an extension end point. Among them, the body portion 210 can have a first connecting side 213 and a second connecting side 214 arranged opposite to each other between the end of the second side 211 and the end of the third side 212. The first connecting side 213 and the second connecting side 214 can both extend along the predetermined extension direction. The second side 211 and the third side 212 may each have an end close to the range hood back plate 100, and the line between the end of the second side 211 close to the range hood back plate 100 and the end of the third side 212 close to the range hood back plate 100 along the predetermined extension direction may be the first connecting side 213, and the first connecting side 213 may be a curve. The second side 211 and the third side 212 may each have another end away from the range hood back plate 100, and the line between the other end of the second side 211 away from the range hood back plate 100 and the other end of the third side 212 away from the range hood back plate 100 along the predetermined extension direction may be the second connecting side 214, and the second connecting side 214 may be a curve. Figure 6In the illustrated embodiment, the first connection edge 213 and the second connection edge 214 may be substantially the same as the contour line of the projection of the volute 200 on the range hood back plate 100. The first connection edge 213 may be connected to the range hood back plate 100, and the second connection edge 214 may be connected to the cover body 220. The first connection edge 213 may be connected to the range hood back plate 100 in various forms such as snap connection, welding or threaded connection. It can be considered that the first connection edge 213 is the connection line between the volute 200 and the range hood back plate 100, and the first connection edge 213 surrounds the contour of the volute 200, so that the connection of the volute 200 to the range hood back plate 100 is more stable, so that the chassis assembly 10 as a whole can be more stable, and the volute 200 is not easy to fall off. The second connection edge 214 is connected to the cover body 220, which is equivalent to the surrounding body 210 being arranged along the edge of the cover body 220. Such a surrounding body 210 and the cover body 220 may be an integral part, and such a volute 200 structure may be simpler and the overall cost may be lower.

[0046] In one embodiment of the present invention, see Figure 4 and Figure 6 The inner side of the range hood back plate 100 may be recessed toward the outside of the chassis assembly 10 to form a recessed portion 110. The first connecting edge 213 may be connected to the recessed portion 110 and may be located in the recessed portion 110. The edge of the recessed portion 110 may have any suitable form, for example, the recessed portion 110 may be a square-shaped recess as a whole, such as Figure 6 As shown, the edge of the recessed portion 110 may also extend along a predetermined extension direction, and the edge of such a recessed portion 110 may have a substantially similar trend to the first connecting edge 213. When installing the chassis assembly 10, since the first connecting edge 213 is connected to the recessed portion 110 and may be located in the recessed portion 110, the arrangement of the recessed portion 110 may facilitate the positioning of the volute 200, so that the connection of the volute 200 to the back plate 100 of the range hood may be simpler and more convenient, and the overall installation process of the chassis assembly 10 may also be simpler.

[0047] For example, see Figure 4 and Figure 6, the recessed portion 110 may have a positioning side wall 111 extending along a predetermined extension direction, and the first connecting edge 213 may abut against the positioning side wall 111. The positioning side wall 111 may be a curve substantially the same as the first connecting edge 213. Since the positioning side wall 111 and the first connecting edge 213 both extend along a predetermined extension direction, and the first connecting edge 213 abuts against the positioning side wall 111, when the volute 200 is connected to the range hood back plate 100, the first connecting edge 213 may be placed into the recessed portion 110 first, and the first connecting edge 213 abuts against the positioning side wall 111, so that the installation position of the volute 200 can be quickly positioned, so that such a recessed portion 110 can make it easier and more convenient to connect the volute 200 to the range hood back plate 100, and the overall installation process of the chassis assembly 10 can also be simpler.

[0048] In one embodiment of the present invention, see Figure 6 , the recessed portion 110 may have a mounting surface 112 facing the inside of the chassis assembly 10, and the first connecting edge 213 may be provided with a flange 2131 parallel to the mounting surface 112 and extending toward the outside of the installation space 500, and the flange 2131 may be located in the recessed portion 110 and may be connected to the mounting surface 112. The flange 2131 may be attached to the mounting surface 112. The flange 2131 may be connected to the mounting surface 112 in various forms such as threaded connection, riveting or welding. The provision of the flange 2131 may increase the connection area between the surrounding body 210 of the volute 200 and the range hood back plate 100, so that the connection between the volute 200 and the range hood back plate 100 may be more stable, and the chassis assembly 10 as a whole may also be more stable. Moreover, the provision of the flange 2131 may make it easier for the surrounding body 210 of the volute 200 to be connected to the range hood back plate 100.

[0049] For example, see Figure 4 , Figure 5 and Figure 6 , the recessed portion 110 may have a positioning side wall 111 extending along a predetermined extension direction, and the flange 2131 may abut against the positioning side wall 111. When connecting the volute 200 to the range hood back plate 100, the first connecting edge 213 may be placed into the recessed portion 110 first, and the flange 2131 may be located in the recessed portion 110, and then the flange 2131 may be abutted against the positioning side wall 111, so that the installation position of the volute 200 can be quickly positioned, so that such a recessed portion 110 can make it easier and more convenient to connect the volute 200 to the range hood back plate 100, and the overall installation process of the chassis assembly 10 can also be simpler.

[0050] For example, the flange 2131 may be provided with a plurality of threaded holes, the mounting surface 112 may be provided with a plurality of threaded matching holes, and the plurality of threaded holes and the plurality of threaded matching holes may be connected one-to-one. The flange 2131 may be connected to the mounting surface 112 by threaded connection, so that it is easier to connect the volute 200 to the range hood back plate 100. By connecting the plurality of threaded holes and the plurality of threaded matching holes one-to-one, the volute 200 may be more stable when connected to the range hood back plate 100.

[0051] In one embodiment of the present invention, see Figure 3 , Figure 4 , Figure 5 and Figure 6 , the chassis assembly 10 may include a connector 300, the connector 300 may have a first connector 310, a second connector 320 and a third connector 330, the second connector 320 and the third connector 330 may be connected to both ends of the first connector 310, respectively, the first connector 310 may be connected to the first edge 221, the second connector 320 may be connected to the second edge 211, and the third connector 330 may be connected to the third edge 212. The connector 300 as a whole may have a shape substantially the same as the top opening of the installation space 500. The volute 200 may be connected to the range hood top plate of the chassis assembly 10 through the connector 300. The provision of the connector 300 may make the connection of the volute 200 to the range hood top plate more stable.

[0052] In one embodiment of the present invention, see Figure 4 , Figure 6 , Figure 8 and Fig. 9, the hood back plate 100 may be recessed toward the installation space 500 to form a mounting portion 130 having a receiving cavity 131. The mounting portion 130 may surround the receiving cavity 131, and the opening of the receiving cavity 131 may be flush with the outer side of the hood back plate 100 away from the installation space 500. The receiving cavity 131 may be located outside the mounting space 500. Since the installation space 500 is formed by the hood back plate 100 and the volute 200, and the mounting portion 130 is a part of the hood back plate 100, it can be considered that the mounting portion 130 forms a recessed portion of the hood back plate 100 toward the installation space 500, so that the receiving cavity 131 may be considered to be located outside the installation space 500. The mounting portion 130 may be provided with a mounting through hole 132, and the motor 700 may be passed through the mounting through hole 132. The motor 700 can be inserted into the mounting through hole 132. The mounting through hole 132 can have an opening size that matches the motor 700, and the motor 700 can be inserted into the mounting through hole 132 in various forms such as snap connection, welding, or threaded connection. A mounting portion 130 that is recessed toward the inside of the mounting space 500 is formed on the range hood back plate 100, and the motor 700 is directly inserted into the mounting through hole 132 on the mounting portion 130, which is equivalent to directly connecting the motor 700 to the range hood back plate 100 without the need to set a motor bracket for fixing the motor 700 in the conventional chassis assembly 10, so that the thickness of such a chassis assembly 10 in the front-to-back direction can naturally be thinner. In addition, since the motor 700 is passed through the mounting hole 132, that is, the motor 700 can pass through the mounting hole 132 from the outside to the inside, a part of the motor 700 can be located in the mounting space 500, so that the part of the motor 700 located outside the mounting space 500 can occupy a smaller space, and the setting of the motor 700 occupies less space in the front-to-back direction, so that the overall thickness of the chassis assembly 10 in the front-to-back direction can be further thinner.

[0053] In one embodiment of the present invention, see Figure 8 and Fig. 9, the motor 700 can be divided into a first part 710 and a second part 720 through the mounting through hole 132, the first part 710 can be located in the accommodating cavity 131, and the second part 720 can be located in the mounting space 500. It can be considered that the motor 700 passes through the mounting through hole 132 from the outside to the inside, and the first part 710 is located on the outside of the mounting through hole 132, and the second part 720 is located on the inside of the mounting through hole 132. The first part 710 is located in the accommodating cavity 131, and the second part 720 is located in the mounting space 500. The second part 720 can be connected to an impeller. The mounting portion 130 is formed on the range hood back plate 100 and is recessed toward the interior of the mounting space 500, and the first portion 710 on the motor 700 is located in the accommodating cavity 131 enclosed by the mounting portion 130. That is to say, the motor 700 is not arranged beyond the portion of the outer side surface of the range hood back plate 100 away from the mounting space 500. In this way, the motor 700 in the chassis assembly 10 occupies less space in the front-to-back direction, so that the overall thickness of the chassis assembly 10 in the front-to-back direction can be thinner.

[0054] In one embodiment of the present invention, see Figure 4 , Figure 5 , Figure 6 , Figure 8 and Fig. 9 , the range hood back plate 100 may also be recessed toward the installation space 500 to form an assembly groove 120. The recessed direction of the assembly groove 120 may be the same as that of the mounting portion 130. The first portion 710 on the motor 700 may be connected to a wire, which may be arranged in the assembly groove 120. Other components on the chassis assembly 10 that need to be arranged outside the installation space 500 may also be arranged in the assembly groove 120. All components on the chassis assembly 10 that need to be assembled outside the installation space 500 may be arranged in the assembly groove 120. The provision of the assembly groove 120 may eliminate the need for the chassis assembly 10 to reserve an assembly space on the range hood back plate 100 away from the outside of the installation space 500, so that the chassis assembly 10 as a whole may occupy a smaller space in the front-to-back direction and may have a thinner overall thickness.

[0055] For example, see Figure 4 and Fig. 9, the assembly groove 120 may have a first end 121 and a second end 122 that are arranged opposite to each other, the assembly groove 120 may be connected to the accommodating cavity 131 at the first end 121, and a through hole 1221 may be provided on the second end 122, and the through hole 1221 may penetrate the range hood back plate 100. Some components arranged on the outside of the range hood back plate 100 may be assembled with components located in the storage cavity 22 through the assembly groove 120. For example, the wire connected to the first part 710 needs to be connected to the power supply in the storage cavity 22, so the wire may enter the storage cavity 22 through the through hole 1221 on the assembly groove 120. The arrangement of the assembly groove 120 may facilitate the assembly of components on the outside of the range hood back plate 100 with components on the inside of the range hood back plate 100, and such a chassis assembly 10 has a simple structure and is easy to implement.

[0056] For example, see Figure 4 , Figure 6 , Figure 8 and Fig. 9 , the range hood back plate 100 may have a volute area 140 and a peripheral area 150 surrounding the volute area 140, the first end 121 may be disposed in the volute area 140, and the second end 122 may be disposed on the peripheral area 150. The edge of the volute area 140 may have a trend substantially the same as the contour line of the surrounding body. The surrounding body may be connected to the edge of the volute area 140. When the components on the outside of the range hood back plate 100 need to be assembled with the components on the inside of the range hood back plate 100, they usually need to be assembled with the components located in the storage cavity 22 but outside the installation space 500. Take the example that the wire connected to the motor 700 needs to be connected to the power supply inside the storage cavity 22 for explanation. The power supply inside the storage cavity 22 is usually located outside the installation space 500, so after the wire connected to the first part 710 enters the assembly groove 120 from the accommodating cavity 131 through the first end 121, it can enter the storage cavity 22 through the through hole 1221 on the second end 122, so as to be connected to the power supply. With such an assembly groove 120, the internal assembly of the chassis assembly 10 as a whole can be more regular, for example, the internal wiring of the chassis assembly 10 as a whole can be more regular, thereby avoiding safety hazards caused by messy wiring.

[0057] Exemplarily, the motor 700 may include a first portion 710 located in the accommodating cavity 131, and a wire may be connected to the first portion 710, and the wire may be led out through the assembly groove 120. The wire connected to the first portion 710 is led out through the assembly groove 120, so that there is no need to reserve space on the outside of the range hood back plate 100 away from the installation space 500 to arrange these wires, and the wire connected to the first portion 710 is led out through the assembly groove 120, and the assembly groove 120 can play a role in wire management, thereby preventing the wires connected to the first portion 710 from being too messy.

[0058] Since the chassis assembly 10 provided by the present invention can have a smaller thickness in the front-to-back direction as a whole, the length of the range hood bottom plate 400 in the front-to-back direction can also be smaller, and such a range hood bottom plate 400 can have a smaller size, so that the range hood bottom plate 400 can be formed integrally with the range hood back plate 100. For example, in one embodiment of the present invention, see Figure 1 , Figure 2 and Figure 3 The bottom of the range hood back plate 100 extends away from the range hood back plate 100 to form a range hood bottom plate 400. Such a range hood bottom plate 400 can be an integral part with the range hood back plate 100, for example, the range hood back plate 100 and the range hood bottom plate 400 can be formed by an integral stretching process, so that the connection between the range hood back plate 100 and the range hood bottom plate 400 is simpler and the overall cost can also be lower.

[0059] An air inlet plate 600 may be generally connected between the range hood bottom plate 400 and the range hood top plate 800. The air inlet plate 600 may include a front air inlet plate 610 connected to the range hood top plate 800 and a lower air inlet plate 620 connected to the range hood bottom plate 400. The front air inlet plate 610 may be connected to the lower air inlet plate 620. For example, see Figure 1 , a lower air inlet plate 620 may be connected to the side of the range hood bottom plate 400 away from the range hood back plate 100. Since the range hood bottom plate 400 may have a smaller size, the length of the range hood bottom plate 400 may be smaller than the range hood top plate 800 in the front-to-back direction, and the front air inlet plate 610 is usually arranged opposite to the range hood back plate 100, for example, the front air inlet plate 610 may be parallel to the range hood back plate 100 and perpendicular to the range hood top plate 800, so that the distance between the front air inlet plate 610 and the range hood back plate 100 may be greater than the length of the range hood bottom plate 400 in the front-to-back direction, so that the lower air inlet plate 620 connected between the front air inlet plate 610 and the range hood bottom plate 400 may be inclined. Exemplarily, the lower air inlet plate 620 may have a first side 621 connected to the range hood bottom plate 400 and a second side 622 away from the range hood bottom plate 400, and from the first side 621 to the second side 622, the lower air inlet plate 620 may be tilted in a direction away from the range hood back plate 100. When the chassis assembly 10 is installed, the first side 621 of the lower air inlet plate 620 may be located at the bottom, and the second side 622 may be located at the top, and from bottom to top, the lower air inlet plate 620 may be tilted in a direction away from the range hood back plate 100. When the chassis assembly 10 is applied to the range hood 20, such a tilted lower air inlet plate 620 can avoid the user's operating area when cooking, and the user's experience can be better. Such a lower air inlet plate 620 can be aimed at the user's cooking area, so that the oil fume absorption effect of the oil fume generated by cooking can be better.

[0060] For example, the volute 200 may be provided with an oil leakage hole (not shown in the figure), and the oil leakage hole may collect oil droplets on the volute 200 in the installation space. When the volute 200 is in the installation position, the oil leakage hole may be provided at the bottom of the volute 200, for example, the oil leakage hole may be provided at the bottom of the surrounding body 210 along the gravity direction. The oil droplets in the volute 200 will flow to the oil leakage hole under the action of gravity, and these oil droplets may flow out of the volute 200 through the oil leakage hole, thereby avoiding excessive oil pollution in the volute 200.

[0061] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0062] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0063] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0064] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0065] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A chassis assembly, characterized in that: It includes a range hood back plate and a volute, the range hood back plate and the volute together form an installation space with a top opening, the volute has a first side, a second side and a third side at the end where the top opening is located, the first side is opposite to the range hood back plate, the second side is opposite to the third side, and the second side and the third side are connected between the first side and the range hood back plate so that the first side, the second side, the third side and the range hood back plate are together to form the top opening.

2. The chassis assembly according to claim 1, characterized in that: The volute comprises a surrounding body portion and a cover body portion, the first side is formed on the cover body portion, and the second side and the third side are respectively formed at two ends of the surrounding body portion along a predetermined extension direction. Among them, the surrounding body has a first connecting edge and a second connecting edge that are relatively arranged between the end of the second edge and the end of the third edge, and the first connecting edge and the second connecting edge both extend along the predetermined extension direction. The first connecting edge is connected to the back panel of the range hood, and the second connecting edge is connected to the cover body.

3. The chassis assembly according to claim 2, characterized in that: The inner side surface of the range hood back plate is recessed toward the outside of the chassis assembly to form a recessed portion, and the first connecting edge is connected to the recessed portion and is located in the recessed portion.

4. The chassis assembly according to claim 3, characterized in that: The recessed portion has a positioning side wall extending along the predetermined extension direction, and the first connecting edge abuts against the positioning side wall.

5. The chassis assembly according to claim 3, characterized in that: The recessed portion has a mounting surface facing the inside of the mounting space, and the first connecting edge is provided with a flange parallel to the mounting surface and extending toward the outside of the mounting space, and the flange is located in the recessed portion and connected to the mounting surface.

6. The chassis assembly according to claim 5, characterized in that: The recessed portion has a positioning side wall extending along the predetermined extension direction, and the flange abuts against the positioning side wall.

7. The chassis assembly according to claim 5, characterized in that: The flange is provided with a plurality of threaded holes, the mounting surface is provided with a plurality of threaded matching holes, and the plurality of threaded holes and the plurality of threaded matching holes are respectively connected in a one-to-one correspondence.

8. The chassis assembly according to claim 1, characterized in that: The chassis assembly includes a connecting member, which has a first connecting portion, a second connecting portion and a third connecting portion, the second connecting portion and the third connecting portion are respectively connected to two ends of the first connecting portion, the first connecting portion is connected to the first edge, the second connecting portion is connected to the second edge, and the third connecting portion is connected to the third edge.

9. The chassis assembly according to claim 1, characterized in that: The back plate of the range hood is recessed toward the installation space to form an installation portion having an accommodating cavity, the accommodating cavity is located outside the installation space, and the installation portion is provided with an installation through hole, through which a motor is passed.

10. The chassis assembly according to claim 9, characterized in that: The motor is divided into a first part and a second part through the installation through hole, the first part is located in the accommodating cavity, and the second part is located in the installation space.

11. The chassis assembly according to claim 9, characterized in that: The back plate of the range hood is also recessed toward the installation space to form an assembly groove.

12. The chassis assembly according to claim 11, characterized in that: The assembly groove has a first end and a second end that are arranged opposite to each other. The assembly groove is connected to the accommodating cavity at the first end. A through hole is arranged on the second end, and the through hole passes through the back plate of the range hood.

13. The chassis assembly according to claim 12, characterized in that: The range hood back plate comprises a volute region and a peripheral region surrounding the volute region, the first end is arranged in the volute region, and the second end is arranged on the peripheral region.

14. The chassis assembly according to claim 13, characterized in that: The motor comprises a first part located in the accommodating cavity, a wire is connected to the first part, and the wire is led out through the assembly groove.

15. The chassis assembly according to claim 1, characterized in that: The bottom of the range hood back plate extends away from the range hood back plate to form a range hood bottom plate.

16. The chassis assembly according to claim 15, characterized in that: A lower air inlet plate is connected to a side of the range hood bottom plate away from the range hood back plate, and the lower air inlet plate has a first side connected to the range hood bottom plate and a second side away from the range hood bottom plate. From the first side to the second side, the lower air inlet plate is inclined in a direction away from the range hood back plate.

17. The chassis assembly according to claim 1, characterized in that: The volute is provided with an oil leakage hole, and the oil leakage hole collects oil drops on the volute in the installation space.

18. A range hood, characterized in that: It includes a smoke baffle and a chassis assembly as described in any one of claims 1 to 17, the chassis assembly also including a range hood top plate and a range hood side plate, the range hood top plate and the range hood side plate are respectively connected to the range hood back plate, and the range hood back plate, the range hood top plate and the range hood side plate enclose a storage cavity with a front opening, and the smoke baffle blocks at least a portion of the front opening.

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