Shell structure and range hood with same

Abstract

The shell structure comprises a smoke collecting cavity defined by a front plate, a rear plate, a top plate and a side plate, the connecting position of the front plate is located through a second connecting part on the side plate, a corresponding connecting part does not need to be additionally arranged on the front plate, and therefore the connecting position of the front plate is located through a second connecting part on the side plate. The front plate structure and the connection mode of the front plate and the side plates are simplified. The connecting position of the rear plate is positioned through the first connecting part on the front plate, the third connecting part on the side plate and the fourth connecting part on the front plate. During assembly, the top plate and the side plates are firstly assembled into the basic frame, then the front plate and the rear plate are installed on the front side and the rear side of the basic frame respectively, the installation directions of the front plate and the rear plate do not interfere with each other, and the advantage that the installation position is rapidly and accurately positioned is achieved. The shell structure is only composed of the front plate, the rear plate, the top plate and the side plates, the smoke collecting cavity can be sealed, the structure is simple, and oil gas and smoke dust in the smoke collecting cavity are effectively prevented from leaking.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, and particularly to a housing structure and a range hood having the same. Background Art

[0002] A range hood is a common ventilation device that can direct the flue gas generated during the kitchen cooking process and is widely used in people's daily lives. The structure of the range hood generally includes a housing structure with a suction port and a wind collecting box arranged above the housing structure. A smoke collecting cavity for collecting flue gas is enclosed inside the housing structure; a smoke exhaust fan is installed in the wind collecting box. When the smoke exhaust fan is started, a negative pressure will be generated at the connection between the housing structure and the wind collecting box, driving some of the flue gas in the smoke collecting cavity to flow upward. Other flue gas and oil dust that are not discharged will stay in the smoke collecting cavity. Therefore, when installing the housing structure, it is necessary to ensure the sealing degree of the housing. The preparation of the housing structure in the prior art is generally formed by integral molding, or a housing frame is formed by splicing multiple parts, and then additional sealing treatment is carried out at the corners of the housing frame; there is also a housing frame with a self-sealing structure, but this kind of housing frame usually has a complex structure and a cumbersome installation process. Summary of the Utility Model

[0003] The purpose of the present utility model is to provide a housing structure for solving the above technical problems; the housing structure includes a top plate, side plates, a rear plate and a front plate. The side plates are arranged on the left and right sides of the top plate. The front plate and the rear plate are oppositely arranged, and both sides of the front plate and the rear plate are respectively connected to two groups of side plates. The top plate, side plates, rear plate and front plate enclose a smoke collecting cavity;

[0004] Define the direction where the front plate is located relative to the rear plate as the front, the direction towards the smoke collecting cavity as the inner side, and the direction away from the smoke collecting cavity as the outer side. A first connecting portion is provided at the rear edge of the top plate, and a third connecting portion is provided at the rear edge of the side plate. The upper end of the rear plate is connected to the first connecting portion, and both the left and right sides of the rear plate are respectively connected to the third connecting portions on the corresponding side plates; a second connecting portion is provided at the front edge of the side plate, both sides of the front plate are connected to the second connecting portions on the corresponding side plates, a fourth connecting portion is provided below the front plate, and the lower end of the rear plate is connected to the fourth connecting portion.

[0005] According to an embodiment of the present utility model, the side plate includes a first part and a second part. The first part extends in the front-rear direction and is connected to both sides of the top plate, and the third connecting portion is arranged at the rear of the second part; the second part extends in the up-down direction, the extending width of the second part in the front-rear direction is smaller than the extending width of the first part in the front-rear direction, and the front edge of the second part is connected to the lower edge of the first part through an arc section.

[0006] According to an embodiment of the present utility model, the side plate includes a first folded edge vertically disposed towards the smoke collecting cavity along its front side direction. The first folded edge is disposed along the lower edge of the first part, the front edge of the second part, and an arc segment connecting the lower edge of the first part and the front edge of the second part. The second connecting portion extends along the inner side of the first folded edge and is higher than the first folded edge. The second connecting portion and the first folded edge are not in the same plane, and the height difference between the first folded edge and the second connecting portion is adapted to the thickness of the front plate. After the front plate is connected to the second connecting portion, the front plate and the first folded edge are in the same plane.

[0007] According to an embodiment of the present utility model, the contour line of the front plate is adapted to the contour line of the front edge of the side plate. Each side of the front plate is provided with a first section, a second section, and a transition section connecting the first section and the second section. Among them, the first section is connected to the second connecting portion at the first part, the second section is connected to the second connecting portion at the second part, and the transition section corresponds to the arc segment.

[0008] According to an embodiment of the present utility model, the lower edge of the side plate is provided with a second folded edge. The second folded edge is bent from the lower edge of the side plate towards the inner side of the smoke collecting cavity. An oil blocking portion is disposed along the inner side of the second folded edge, and the height of the oil blocking portion is higher than the height of the second folded edge, and an installation step is formed with the second folded edge.

[0009] According to an embodiment of the present utility model, the front plate includes a third section bent and extended in the front-rear direction from the second section. Both ends of the third section are located outside the oil blocking portion. The fourth connecting portion is formed by extending downward from the rear edge of the third section. The width of the third section in the front-rear direction is adapted to the width of the lower edge of the side plate in the front-rear direction. When the left and right sides of the front plate are connected to the side plate, the third section is clamped on the installation step. The width of the third section in the left-right direction is adapted to the distance between the two second folded edges on the side close to each other. The thickness of the third section is adapted to the height of the installation step.

[0010] According to an embodiment of the present utility model, an oil blocking plate is further provided on the inner side of the front plate. The oil blocking plate is disposed along the first section, the transition section, the second section, and the third section of the front plate. The cross section of the oil blocking plate is L-shaped, including a connecting surface connected to the inner side of the front plate and an oil blocking surface perpendicular to the connecting surface. The oil blocking surface abuts against the second connecting portion.

[0011] According to an embodiment of the present utility model, the third section forms the bottom plate of the smoke collecting cavity. An oil dripping hole is provided in the part of the third section located between the two oil blocking plates, and an oil cup is communicated with the bottom of the oil dripping hole.

[0012] According to an embodiment of the present utility model, the first connecting portion is perpendicular to the top plate and is formed by extending downward from the rear edge of the top plate. The fourth connecting portion is disposed opposite to the first connecting portion. When the rear plate is connected to the top plate and the front plate, the upper end of the rear plate is located outside the first connecting portion, and the lower end of the rear plate is located inside the fourth connecting portion.

[0013] The present utility model also provides a range hood with the above-mentioned housing structure, which includes an air collecting box arranged on the housing structure, and a smoke exhaust fan is arranged in the air collecting box; an air suction port is arranged on the front panel, and an installation port is arranged on the top panel. The air collecting box is communicated with the smoke collecting cavity through the installation port; it also includes a side baffle assembly, and the side baffle assembly is connected to the left and right sides of the front panel.

[0014] Compared with the prior art, the housing structure of the present utility model has the following advantages: The housing structure of the present utility model includes a smoke collecting cavity surrounded by a front panel, a rear panel, a top panel, and side panels. The position of the front panel is positioned and connected by the second connecting portion on the side panel, and there is no need to additionally provide a corresponding connecting portion on the front panel, which simplifies the structure of the front panel and the connection method between the front panel and the side panel. The rear panel is positioned and connected by the first connecting portion on the front panel, the third connecting portion on the side panel, and the fourth connecting portion on the front panel. During assembly, first assemble the top panel and the side panels into a basic frame, and then install the front panel and the rear panel on the front and rear sides of the basic frame respectively. The installation directions of the front panel and the rear panel do not interfere with each other. The multiple connecting portions arranged on the housing structure can quickly position the installation positions of the front panel and the rear panel.

[0015] The housing structure of the present utility model is only composed of a front panel, a rear panel, a top panel, and side panels, and can realize the sealing of the smoke collecting cavity. The structure is simple and can effectively prevent the leakage of oil gas and soot in the smoke collecting cavity. Brief Description of the Drawings

[0016] Figure 1 is a schematic cross-sectional view of the range hood of the present utility model;

[0017] Figure 2 is a schematic external view of the range hood of the present utility model;

[0018] Figure 3 is an exploded view of the housing structure;

[0019] Figure 4 is an installation schematic view of the housing structure;

[0020] Figure 5 is another exploded view of the housing structure;

[0021] Figure 6 is Figure 5 an enlarged schematic view of the position of the lower edge of the side panel in

[0022] Figure 7 is a connection schematic view of the front panel, the side panel, and the top panel.

[0023] In the figure: top plate 1, first connecting portion 11, mounting opening 12; side plate 2, second connecting portion 21, third connecting portion 22, first part 23, second part 24, first flanging 25, second flanging 26, oil retaining portion 27; rear plate 3; front plate 4, fourth connecting portion 41, first section 42, transition section 43, second section 44, third section 45, oil dripping hole 451, air suction opening 46; air collecting box 5, oil cup 6, smoke exhaust fan 7, side baffle assembly 8; oil baffle 9, connecting surface 91, oil retaining surface 92.

[0024] The realization and advantages of the present utility model will be further described with reference to the accompanying drawings in combination with embodiments. Specific embodiments

[0025] The following will disclose multiple embodiments of the present utility model in the form of diagrams. For the sake of clarity, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0027] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0028] To further understand the content, characteristics and effects of the present utility model, the following embodiments are cited and described in detail in conjunction with the accompanying drawings as follows:

[0029] Such as Figure 1 And Figure 2A range hood shown includes a shell structure and an air collecting box 5 installed above the shell structure. A smoke collecting chamber is formed in the shell structure. The fumes generated by cooking in the kitchen will enter the smoke collecting chamber through the air suction port 41 on the front panel 4 of the shell mechanism of the range hood. The smoke collecting chamber is connected to the air collecting box 5. A smoke exhaust fan 7 is installed in the air collecting box 5. When the smoke exhaust fan 7 is running, a negative pressure will be formed in the air collecting box 5. External fumes will enter the air collecting box 5 through the air suction port 46 on the front panel 4 and be discharged from the air collecting box 5 by the smoke exhaust fan 7.

[0030] The shell structure includes Figures 3 to 5 The top plate 1, side plates 2, rear plate 3 and front plate 4 shown, the side plates 2 are in two groups, respectively located on the left and right sides of the top plate 1; the front plate 4 is arranged opposite to the rear plate 3, and the front plate 4 and the two sides of the rear plate 3 are respectively connected to the two groups of side plates 2, so that the top plate 1, the side plates 2, the rear plate 3 and the front plate 4 form a shell structure with a smoke collecting chamber. In order to facilitate the description of the subsequent connection structure, the upper and lower positional relationship between the shell structure and the air collecting box 5 is used as the vertical reference, and the direction of the front plate 4 relative to the rear plate 3 is defined as the front, the direction of the components of the shell structure toward the smoke collecting chamber is the inner side, and the direction away from the smoke collecting chamber is the outer side.

[0031] The rear plate 3 is connected to the rear side of the side plate 2, the front plate 4 is connected to the front side of the side plate 2. The rear edge of the top plate 1 is provided with a first connecting portion 11, the rear edge of the side plate 2 is provided with a third connecting portion 22. The upper end of the rear plate 3 is connected to the first connecting portion 11, and both sides of the rear plate 3 are respectively connected to the third connecting portion 22 on the corresponding side plate 2; the front edge of the side plate 2 is provided with a second connecting portion 21, and both sides of the front plate 4 are connected to the second connecting portion 21 on the corresponding side plate 2, without additionally providing a corresponding connecting portion on the front plate, which simplifies the structure of the front plate 4 and the connection manner between the front plate 4 and the side plate 2; a fourth connecting portion 41 is provided below the front plate 4, and the lower end of the rear plate 3 is connected to the fourth connecting portion 41. In the above connection structure, the position of the rear plate 3 is fixed at the rear side of the side plate 2 and the top plate 1 through the first connecting portion 11 and the third connecting portion 22, the position of the front plate 4 is fixed at the front side of the top plate 1 through the second connecting portion 21, the lower end of the rear plate 3 is connected to the lower end of the front plate 4 through the fourth connecting portion 41, and a smoke collecting cavity is formed among the top plate 1, the side plate 2, the rear plate 3 and the front plate 4. In the housing structure of the present utility model, the top plate 1 and the side plates 2 on both sides thereof are integrally formed, and the top plate 1 and the side plates 2 form a basic framework of the housing structure; the rear plate 3 and the front plate 4 are connected to this basic framework. The first connecting portion 11 on the top plate 1 and the third connecting portion 22 on the side plate 2 jointly limit the installation position of the rear plate 3; the position of the front plate 4 is limited at the front side of the side plate 2 through the second connecting portion 21, the bottom of the front plate 4 and the bottom of the rear plate 3 are naturally superposed together, and finally the rear plate 3 is connected through the fourth connecting portion 41 provided on the front plate 4 to seal the bottom position of the entire housing structure and limit the relative position between the front plate 4 and the rear plate 3. By adopting the above connection structure, the installation positions of the front plate 4 and the rear plate 3 can be quickly and accurately positioned.

[0032] Specifically, the side plate 2 includes a first part 23 and a second part 24 that are angled to each other. The first part 23 extends in the front-rear direction and is connected to both sides of the top plate 1. The upper edge of the first part 23 is connected to the side edge of the top plate 1. In practical applications, the first part 23 is integrally formed with the top plate 1. The second part 24 extends in the up-down direction, and the part of the second part 24 corresponding to the first part 23 is welded together. The third connecting portion 22 is provided at the rear side of the second part 24. The extension width of the second part 24 in the front-rear direction is smaller than the extension width of the first part 23 in the front-rear direction. The part where the first part 23 extends forward beyond the second part 24 forms a machine head that extends towards the user side after the front plate 4 is connected to the side plate 2. The display panel of the range hood is installed on the front side of the machine head. The part where the second part 24 is connected to the front plate 4 forms a shape that is wider at the top and narrower at the bottom. From top to bottom, the closer to the cooking range, the smaller the size of the housing in the front-rear direction, reducing the occupation of space and not affecting the user's operation. The rear edge of the second part 24 is flush with the rear edge of the first part 23. The third connecting portion 22 extends along the rear edges of the first part 23 and the second part 24. The front edge of the second part 24 is connected to the lower edge of the first part 23 through an arc section, so that when the front plate 4 is connected to the side plate 2, a smooth transition is achieved at the front edge of the second part 24 and the lower edge of the first part 23, ensuring a beautiful appearance.

[0033] The first connecting portion 11, the second connecting portion 21, the third connecting portion 22, and the fourth connecting portion 41 and their corresponding connecting components can be bonded through an adhesive layer, or the screw connection method adopted in this embodiment can be used. Installation holes are respectively provided between the two that are connected to each other, and then connecting screws are installed in the installation holes for fixation.

[0034] The side plate 2 is vertically provided with a first folded edge 25 towards the smoke collecting cavity along its front side direction. The first folded edge 25 is arranged along the lower edge of the first part 23, the front edge of the second part 24, and the arc section connecting the first part 23 and the second part 24. The second connecting portion 21 extends along the inner side of the first folded edge 25 and is higher than the first folded edge 25, so that the first folded edge 25 protrudes beyond the outer side of the first connecting portion 11. When the front plate 4 is placed on the outer side of the second connecting portion 21, the first folded edge 25 can quickly position the placement position of the front plate 4.

[0035] Since the first folded edge 25 is located outside the second connecting portion 21, when the front plate 4 is placed at the front side positions of the two sets of side plates 2, both sides of the front plate 4 will come into contact with the two sets of first folded edges 25. The two sets of first folded edges 25 will naturally limit the positions of all parts of the front plate 4, causing it to be pressed against the surface of the second connecting portion 21. The front plate 4 and the second connecting portion 21 can be easily docked without being interfered by other components, and the connection position between the front plate 4 and the second connecting portion 21 can achieve sufficient sealing. The thickness by which the first folded edge 25 protrudes from the second connecting portion 21 is specifically set to be adapted to the thickness of the front plate 4. After the positions of the front plate 4 and the side plate 2 are fixed, the outer surface of the front plate 4 and the outer surface of the first folded edge 25 are in the same plane, presenting an aesthetically pleasing integrated structure in appearance; at the same time, the front plate 4 is completely located on the first folded edge 25, which can not only fully ensure the support and positioning of the first folded edge 25 for the front plate 4, but also further enhance the sealing degree between the front plate 4 and the second connecting portion 21.

[0036] The contour line of the front plate 4 is adapted to the contour line of the leading edge of the side plate 2. Each side of the front plate 4 is provided with a first section 42, a second section 44, and a transition section 43 connecting the first section 42 and the second section 44. Among them, the first section 42 is connected to the second connecting portion 21 at the first part 23, the second section 44 is connected to the second connecting portion 21 at the second part 24, and the transition section 43 corresponds to the arc section connecting the first part 23 and the second part 24. Each part of the second connecting portion 21 positions the corresponding part of the front plate 4, which can maintain the accuracy of installing the front plate 4; the first part 23 and the second part 24 of the second connecting portion 21 form an angle with each other, and the position corresponding to the transition section 43 also presents a certain arc, which can play a role in limiting the installation of the front plate 4, enabling the front plate 4 to be quickly positioned at the connection position, reducing the shaking of the front plate 4 during the installation process, and reducing the installation difficulty of the front plate 4.

[0037] The first connecting portion 11 and the third connecting portion 22 are respectively formed by bending the rear edges of the top plate 1 and the second part 24 of the side plate 2 in the direction of the air collecting cavity. The first connecting portion 11 extends in the up and down direction, and the third connecting portion 22 extends perpendicular to the front and back direction. The first connecting portion 11 and the third connecting portion 22 respectively position the rear plate 3 from two directions to form a vertical positioning plane. The first connecting portion 11 and the third connecting portion 22 connect the rear plate 3, and can accurately seal the rear side position of the smoke collecting cavity.

[0038] As described above, the first folded edge 25 outside the second connecting portion 21 can position the first section 42 and the second section 44 of the front plate 4, connect and seal the front side positions of the first part 23 and the second part 24 of the side plate 2. The rear plate 3 connects and seals the rear side positions of the top plate 1 and the side plate 2. This embodiment is also provided with a structure for sealing the bottom position of the side plate 2. As Figure 6As shown, the lower edge of the side plate 2 is provided with a second folded edge 26. The second folded edge 26 is bent from the lower edge of the side plate 2 towards the smoke collecting cavity. An oil blocking portion 27 is provided along the inner side of the second folded edge 26. The oil flowing downward along the inner side wall of the side plate 2 is received by the oil blocking portion 27.

[0039] The front plate 4 includes a third section 45 that is bent and extends in the front-back direction from the second section 44. The third section 45 is horizontally arranged and is used to receive the oil dripping downward along the inner side wall of the front plate 4. The oil on the inner side wall of the front plate 4 flows downward along the inner side wall of the front plate 4 and is finally received by the third section 45. An oil dripping hole 451 is provided on the third section 45. The oil collected on the third section 45 is discharged from the oil dripping hole 451 out of the smoke collecting cavity.

[0040] Similar to the first folded edge 25, the height of the oil blocking portion 27 is higher than that of the second folded edge 26. The second folded edge 26 forms a positioning step for the front plate 4 on the outer side of the oil blocking portion 27. When installing the front plate 4, the third section 45 will naturally contact the second folded edge 26 and be positioned on the outer side of the oil blocking portion 27. Further, the thickness of the second folded edge 26 protruding from the surface of the oil blocking portion 27 is adapted to the thickness of the third section 45 of the front plate 4, and the width of the second folded edge 26 is adapted to the width of the third section 45 of the front plate 4, so that the third section 45 of the front plate 4 naturally fits on the outer side of the oil blocking portion 27 and covers the entire surface of the oil blocking portion 27.

[0041] The fourth connecting portion 41 is bent and extends in the up-down direction from the rear end of the third section 45 of the front plate 4. The upper end of the rear plate 3 is connected to the first connecting portion 11 of the top plate 1, the two sides of the rear plate 3 are connected to the third connecting portion 22 of the second part 24 of the side plate 2, and the lower end of the rear plate 3 is connected to the fourth connecting portion 41 of the front plate 4. The rear plate 3 is completely fixed at the rear side of the smoke collecting cavity. Further, the first connecting portion 11 and the fourth connecting portion 41 are arranged on the inner side of the rear plate 3, and the fourth connecting portion 41 is arranged on the outer side of the rear plate 3. The fourth connecting portion 41 positions the rear plate 3 and at the same time trims the edge of the rear plate 3, restricting the installation position of the rear plate 3 from the front and back directions to ensure the installation stability of the rear plate 3.

[0042] In addition, the second section 44 and the fourth connecting portion 41 are respectively extended and provided on the front and rear sides of the third section 45. The three enclose a trough-shaped structure. The lower edge of the side plate 2 and the oil blocking portion 27 are located within this trough-shaped structure and at both ends of the third section 45, which can effectively seal the lower edge of the side plate 2.

[0043] As Figure 3 And Figure 7As shown in the figure, an oil baffle 9 is further provided on the inner side of the front panel 4. The oil baffle 9 is arranged along the first section 42, the transition section 43, the second section 44, and the third section 45 of the front panel 4, presenting an overall downward extension structure. The cross-section of the oil baffle 9 is L-shaped, including a connecting surface 91 connected to the inner side of the front panel 4 and an oil blocking surface 92 perpendicular to the connecting surface 91. During the process that the oil fume enters the smoke collecting cavity through the lower air suction port 46 and flows towards the air collecting box 5, the oil liquid formed by the mixture of oil and water in the oil fume will adhere to the inner side wall surface of the front panel 4. When the oil liquid on the inner side wall surface of the front panel 4 flows to both sides, it is blocked by the oil baffle 9, preventing the oil liquid from seeping out between the edge of the front panel 4 and the second connecting part 21 on the front side of the side plate 2. The oil liquid on the inner side wall surface of the front panel 4 flows downward along the part of the front panel 4 surrounded by the oil baffle 9 and finally drops to the third section 45 of the front panel 4, converges on the third section 45 of the front panel 4, and finally drips out through the oil dripping hole 451 opened on the third section 45 and is collected by the oil cup 6 installed at the bottom of the oil dripping hole 451.

[0044] The oil blocking surface 92 is further arranged to abut against the second connecting part 21, preventing the oil liquid from seeping out between the edge of the front panel 4 and the second connecting part 21 on the front side of the side plate 2.

[0045] The shell structure provided by the present utility model has the advantages of convenient installation and stable sealing. The range hood designed on the basis of this shell structure can be disassembled and assembled conveniently and ensure the oil collection effect. As Figure 1 With Figure 2 shown in the figure, the range hood includes the above shell structure and an air collecting box 5 located above the shell structure. A smoke exhaust fan 7 is provided in the air collecting box 5. An air suction port 46 is provided on the front panel 4, and an installation opening 12 is provided on the top panel 1. The air collecting box 5 is cooperatively arranged in the installation opening 12 and communicated with the smoke collecting cavity through the installation opening 12. When the range hood works, the smoke exhaust fan 7 drives the gas flow in the air collecting box 5, generating negative pressure at the bottom of the air collecting box 5. The oil fume in the kitchen is sucked into the smoke collecting cavity from the air suction port 46 and then discharged from the air outlet of the air collecting box 5 along with the air flow. When the oil fume flows in the smoke collecting cavity and the air collecting box, the oil liquid formed by the mixture of oil and water in the oil fume will adhere to the inner wall surface of the smoke collecting cavity and flow downward along the inner wall surface of the smoke collecting cavity to the third section 45 of the front panel 4. The oil liquid on the volute of the smoke exhaust fan 7 will also flow from the volute and drop onto the third section 45 of the front panel 4, and finally flow into the oil cup 6 through the oil dripping hole 451.

[0046] In addition, the range hood further includes a side baffle assembly 8, and the side baffle assembly 8 is connected to the outer side of the front panel 4. The side baffle assembly 8 can effectively prevent the oil fume from escaping to both sides of the range hood when flowing towards the air suction port 46.

[0047] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A shell structure for a range hood, characterized in that: The smoke collecting chamber comprises a top plate (1), side plates (2), a rear plate (3) and a front plate (4), wherein the side plates (2) are arranged on the left and right sides of the top plate (1), the front plate (4) and the rear plate (3) are arranged opposite to each other, and the two sides of the front plate (4) and the rear plate (3) are respectively connected to two groups of the side plates (2), and the top plate (1), the side plates (2), the rear plate (3) and the front plate (4) form a smoke collecting chamber; The front plate (4) is defined as the front relative to the rear plate (3), the direction toward the smoke collecting chamber is defined as the inner side, and the direction away from the smoke collecting chamber is defined as the outer side. The rear edge of the top plate (1) is provided with a first connecting portion (11), the rear edge of the side plate (2) is provided with a third connecting portion (22), the upper end of the rear plate (3) is connected to the first connecting portion (11), and the left and right sides of the rear plate (3) are respectively connected to the third connecting portion (22) on the side plate (2) on the corresponding side. A second connecting portion (21) is provided on the front edge of the side panel (2), and two sides of the front panel (4) are connected to the second connecting portions (21) on the side panel (2) on the corresponding side. A fourth connecting portion (41) is provided below the front plate (4), and the lower end of the rear plate (3) is connected to the fourth connecting portion (41).

2. The housing structure according to claim 1, characterized in that: The side plate (2) comprises a first portion (23) and a second portion (24); the first portion (23) extends in the front-to-back direction and is connected to both sides of the top plate (1); the third connecting portion (22) is arranged at the rear side of the second portion (24); the second portion (24) extends in the up-down direction; the extension width of the second portion (24) in the front-to-back direction is smaller than the extension width of the first portion (23) in the front-to-back direction; the front edge of the second portion (24) is connected to the lower edge of the first portion (23) via an arc segment.

3. The housing structure according to claim 2, characterized in that: The side plate (2) comprises a first folded edge (25) arranged vertically toward the smoke collecting chamber along the front side thereof; the first folded edge (25) is arranged along the lower edge of the first part (23), the front edge of the second part (24), and along the arc segment connecting the lower edge of the first part (23) and the front edge of the second part (24); the second connecting portion (21) extends along the inner side of the first folded edge (25) and is higher than the first folded edge (25); the second connecting portion (21) and the first folded edge (25) are not in the same plane, and the height difference between the first folded edge (25) and the second connecting portion (21) is adapted to the thickness of the front plate (4); after the front plate (4) and the second connecting portion (21) are connected, the front plate (4) and the first folded edge (25) are located in the same plane.

4. The housing structure according to claim 3, characterized in that: The contour line of the front plate (4) is adapted to the contour line of the front edge of the side plate (2), and a first section (41), a second section (44) and a transition section (43) connecting the first section (42) and the second section (44) are provided on both sides of the front plate (4), wherein the first section (42) is connected to the second connecting portion (21) at the first part (23), the second section (44) is connected to the second connecting portion (21) at the second part (24), and the transition section (43) corresponds to the circular arc section.

5. The housing structure according to claim 4, characterized in that: A second folded edge (26) is provided at the lower edge of the side plate (2), the second folded edge (26) is bent from the lower edge of the side plate (2) toward the inside of the smoke collecting chamber, an oil blocking portion (27) is provided along the inner side of the second folded edge (26), the height of the oil blocking portion (27) is higher than the height of the second folded edge (26), and forms a mounting step with the second folded edge (26).

6. The housing structure according to claim 5, characterized in that: The front plate (4) comprises a third section (45) which is bent and extended from the second section (44) in the front-to-back direction, and two ends of the third section (45) are located outside the oil blocking portion (27); the fourth connecting portion (41) is formed by extending downward from the rear edge of the third section (45); the width of the third section (45) in the front-to-back direction matches the width of the lower edge of the side plate (2) in the front-to-back direction; when the left and right sides of the front plate (4) are connected to the side plate (2), the third section (45) is clamped on the mounting step; the width of the third section (45) in the left-to-right direction matches the distance between the two second folded edges (26) approaching each other; and the thickness of the third section (45) matches the height of the mounting step.

7. The housing structure according to claim 6, characterized in that: An oil baffle plate (9) is also provided on the inner side of the front plate (4), and the oil baffle plate (9) is provided along the first section (42), the transition section (43), the second section (44), and the third section (45) of the front plate (4); the cross section of the oil baffle plate (9) is L-shaped, comprising a connecting surface (91) connected to the inner side of the front plate (4) and an oil baffle surface (92) perpendicular to the connecting surface (91), and the oil baffle surface (92) is in contact with the second connecting portion (21).

8. The housing structure according to claim 7, characterized in that: The third section (45) forms the bottom plate of the smoke collecting chamber, and the portion of the third section (45) located between the two oil baffles (9) is provided with an oil dripping hole (451), the bottom of the oil dripping hole (451) being connected to an oil cup (6).

9. The housing structure according to claim 6, characterized in that: The first connection portion (11) is perpendicular to the top plate (1) and is extended downward from the rear edge of the top plate (1). The fourth connection portion (41) is arranged opposite to the first connection portion (11). When the rear plate (3) is connected to the top plate (1) and the front plate (4), the upper end of the rear plate (3) is located on the outside of the first connection portion (11), and the lower end of the rear plate (3) is located on the inside of the fourth connection portion (41).

10. A range hood, comprising a housing structure according to any one of claims 1 to 9 and an air collecting box (5) arranged on the housing structure, wherein a smoke exhaust fan (7) is arranged in the air collecting box (5), characterized in that: The front plate (4) is provided with an air suction port (46), the top plate (1) is provided with a mounting port (12), the air collecting box (5) is connected to the smoke collecting chamber via the mounting port (12), and also includes a side baffle assembly (8), the side baffle assembly (8) being connected to the left and right sides of the front plate (4).

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