Box body and range hood

Abstract

The utility model discloses a box body which comprises two side plates, a back plate and a switch box. The two side plates are oppositely arranged in the left-right direction, upper folded plates are arranged on the upper edges of the side plates, front folded plates are arranged on the front edges of the side plates, inserting grooves are formed between the front folded plates and the upper folded plates, and the lower edge of the back plate is bent forwards to form lower folded plates. The switch box is arranged between the two side plates, and the two ends of the switch box are provided with extending parts extending into the corresponding inserting grooves. Wherein the two side plates, the back plate and the switch box are mutually enclosed to form a smoke collecting cavity, the two front folding plates, the lower folding plate and the switch box are mutually enclosed to form a smoke inlet, and the two upper folding plates, the upper edge of the back plate and the switch box are mutually enclosed to form a mounting opening. Therefore, when the box body is produced and assembled, only the two side plates, the back plate and the switch box need to be assembled, so that the box body is more convenient to assemble, and the production efficiency of the box body is improved. In addition, the utility model further discloses the range hood with the box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field, especially a kind of box and extractor hood. BACKGROUND

[0002] Range hood is usually composed of box and wind cabinet, box has smoke collecting chamber and smoke inlet connected with smoke collecting chamber, wind cabinet is installed above box, fan is installed in wind cabinet to discharge oil fume in smoke collecting chamber to outside of box.

[0003] In prior art, box is usually formed by mutually splicing top plate, left and right two side plates, front plate and back plate, two side plates are oppositely and spacedly arranged, top plate is located between two side plates and at the top of two side plates, front plate is located between two side plates and at the front side of top plate, back plate is located between two side plates and at the back side of top plate, lower edge of back plate is bent forward to connect with front plate, smoke collecting chamber is formed by mutually enclosing top plate, left and right two side plates, front plate and back plate, front plate is provided with smoke inlet connected with smoke collecting chamber, top plate is provided with installation opening connected with smoke collecting chamber, for installing wind cabinet, in addition, front side edge of top plate also needs to be sequentially bent downward and backward to form installation cavity for installing switch. As can be seen, the structure of existing box is relatively complex, and assembling is relatively cumbersome, which leads to low production efficiency of box. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in prior art. For this purpose, the utility model provides a box, which is relatively simple in structure, easy to assemble and has high production efficiency.

[0005] The utility model further provides a range hood with the above box.

[0006] The housing according to an embodiment of the present utility model includes: two side panels arranged opposite each other in a left-right direction; the upper edge of each side panel is bent to form an upper folding plate, and the front edge of each side panel is bent to form a front folding plate; slots are arranged at intervals between the front folding plate and the upper folding plate; the two upper folding plates are arranged opposite each other, and the two front folding plates are arranged opposite each other; a back panel is disposed between the two side panels; the upper edge of the back panel is connected to the two upper folding plates, and the lower edge of the back panel is bent forward to form a lower folding plate; the two ends of the lower folding plate are correspondingly connected to the two side panels. A switch box is located between the two side plates. Both ends of the switch box have extensions extending into the corresponding slots. The switch box has a mounting cavity for installing a switch. The two side plates, the back plate, and the switch box together form a smoke collection cavity. The two front folding plates, the lower folding plate, and the switch box together form a smoke inlet communicating with the smoke collection cavity. The two upper folding plates, the upper edge of the back plate, and the switch box together form a mounting port communicating with the smoke collection cavity. The mounting port is used to install the air handling unit.

[0007] The housing according to the embodiment of this utility model has at least the following beneficial effects:

[0008] By adopting the housing of this utility model embodiment, only two side panels, a back panel, and a switch box need to be assembled during production and assembly. The back panel is placed between the two side panels, with its upper edge connected to two upper folding plates, and its lower folding plate connected to the lower edges of the two side panels. The switch box is connected between the two side panels, and its extension is inserted into the slot, thereby forming the smoke collection chamber of the housing. The front folding plate of the side panel can serve as the front panel of the housing and can be combined with the switch box and the lower folding plate to form a smoke inlet. The upper folding edge of the side panel can serve as the top panel of the housing and can be combined with the upper edge of the back panel and the switch box to form an installation port for installing the fan. Therefore, the housing of this utility model embodiment does not require additional front and top panels. Only two side panels, a back panel, and a switch box need to be combined to form the housing of the range hood, reducing the number of panels that need to be assembled during housing production. This makes the structure of the housing simpler, the assembly more convenient, and improves the production efficiency of the housing.

[0009] According to some embodiments of the present invention, the inner periphery of the slot is provided with a first bending portion, the first bending portion bends toward the inside of the slot, and the free end of the first bending portion is provided with a first abutting portion that bends backward and inward relative to the slot in sequence; the extension portion can abut against the first abutting portion and is arranged at intervals with the first bending portion to form a first welding gap.

[0010] According to some embodiments of the utility model, the first abutting part is provided with at least one first positioning slot, the extension part is provided with a first positioning hole corresponding to the first positioning slot, and a fastener is inserted into the first positioning hole and the corresponding first positioning slot.

[0011] According to some embodiments of the utility model, the lower folding plate has a second bending part bent upward, the free end of the second bending part is provided with a second abutting part corresponding to the two front folding plates, the second abutting part is formed by sequentially bending the second bending part backward and upward, the front folding plate can abut against the front side surface of the second abutting part and is arranged to form a second welding gap with the second bending part.

[0012] According to some embodiments of the utility model, the upper surface of the lower folding plate is provided with a third oil guide groove recessed downward, the bottom wall of the third oil guide groove is provided with at least one oil dripping hole, the periphery of the oil dripping hole is bent downward to form an oil guide surface, and the oil guide surface is a tapered surface with a large upper end and a small lower end.

[0013] According to some embodiments of the utility model, the smoke collecting cavity is provided with a reinforcing plate arranged from front to back and upward, the upper end of the reinforcing plate is connected to the back plate, and the lower end of the reinforcing plate is connected to the second bending part.

[0014] According to some embodiments of the utility model, the switch box comprises a mounting plate and a box body, the two extension parts are arranged at the two ends of the mounting plate, the box body is arranged at the back side of the mounting plate and forms a mounting cavity for mounting switches with the mounting plate, the mounting cavity is located between the two extension parts, and the left and right ends of the mounting cavity have openings; the side edge of each front folding plate away from the corresponding side plate has a downward bent baffle, the two baffles correspondingly abut against the two ends of the box body and shield the corresponding openings, and at least one baffle is provided with a wire passing hole communicating with the mounting cavity.

[0015] According to some embodiments of the utility model, the lower edge of the mounting plate has a rearward bent support plate, the rear edge of the support plate has an upward bent limiting plate, the box body abuts against the support plate and the limiting plate, the support plate and the limiting plate have a first oil guide groove therebetween, and the first oil guide groove extends to the two ends of the smoke inlet and communicates with the smoke collecting cavity relative to the left and right ends of the box body.

[0016] According to some embodiments of the utility model, the front surface of each front folding plate is provided with a second oil guide groove recessed rearward, and the lower edge of the second oil guide groove is inclined downward and extends to the edge of the smoke inlet.

[0017] The fume extractor according to the embodiments of the present invention is provided with a housing according to any of the above embodiments.

[0018] The fume extraction method according to the embodiments of this utility model has at least the following beneficial effects:

[0019] In the range hood of this utility model embodiment, by setting the housing of any of the above embodiments, the housing is formed by assembling only two side panels, a back panel and a switch box. Therefore, in the production process of the range hood, there is no need to configure an additional front panel and top panel for the housing. The housing of the range hood can be formed by simply enclosing the two side panels, the back panel and the switch box together. This not only reduces the number of panels that need to be assembled in the production process, but also makes assembly more convenient and helps to improve the production and assembly efficiency of the range hood.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the box body according to an embodiment of the present utility model;

[0023] Figure 2 This is another schematic diagram of the box body according to an embodiment of the present utility model;

[0024] Figure 3 This is an exploded view of the box body according to an embodiment of the present utility model;

[0025] Figure 4 This is a cross-sectional schematic diagram of the box body according to an embodiment of the present utility model;

[0026] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle;

[0027] Figure 6 for Figure 4 A magnified view of a portion of point B in the middle;

[0028] Figure 7 This is a schematic diagram of the back panel of the box body according to an embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram showing the connection between the side panel of the housing and the switch box in an embodiment of this utility model;

[0030] Figure 9 This is a schematic diagram of the side panel of the box body according to an embodiment of the present utility model;

[0031] Figure 10 Figure 1 is a schematic view of a side plate of a box body according to an embodiment of the present application;

[0032] Figure 11 Figure 2 is a schematic view of a switch box of a box body according to an embodiment of the present application;

[0033] Figure 12 Figure 3 is a schematic view of a switch box of a box body according to an embodiment of the present application.

[0034] Reference signs:

[0035] Side plate 100, upper folding plate 110, front folding plate 120, second oil guide groove 121, insertion groove 130, first bending part 131, first abutting part 132, first positioning hole 133, first welding gap 140, baffle 150, wire passing hole 151;

[0036] Back plate 200, lower folding plate 210, second bending part 220, second abutting part 230, second welding gap 240, third oil guide groove 250, oil dripping hole 251, reinforcing plate 260;

[0037] Switch box 300, mounting plate 310, support plate 311, limiting plate 312, box body 320, opening 321, extension part 330, first positioning groove 331, first oil guide groove 340;

[0038] Smoke collecting cavity 400, smoke inlet 410, mounting port 420. DETAILED DESCRIPTION

[0039] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0040] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0041] In the description of the utility model, if several meanings are one or more, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, the second is only used for distinguishing technical features for the purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0042] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0043] Refer to Figures 1 to 3 The utility model discloses an embodiment proposes a kind of box, including two side plates 100, backboard 200 and switch box 300.Two side plates 100 are oppositely arranged along left-right direction, the upper edge of side plate 100 is bent and is formed with upper baffle 110, the front edge of side plate 100 is bent and is formed with front baffle 120, front baffle 120 and upper baffle 110 are arranged with interval and form slot 130, two upper baffles 110 are oppositely arranged, two front baffles 120 are oppositely arranged;Backboard 200 is set between two side plates 100, the upper edge of backboard 200 is connected with two upper baffles 110, the lower edge of backboard 200 is bent and is formed with lower baffle 210, the both ends of lower baffle 210 are connected with two side plates 100 correspondingly;Switch box 300 is located between two side plates 100, the both ends of switch box 300 are provided with extension 330 extending into corresponding slot 130, and switch box 300 is opened and is used for installing switch mounting cavity;Wherein, two side plates 100, backboard 200, switch box 300 are mutually enclosed and form smoke collection chamber 400, two front baffles 120, lower baffle 210, switch box 300 are mutually enclosed and form smoke inlet 410 that is communicated with smoke collection chamber 400, two upper baffles 110, the upper edge of backboard 200, switch box 300 are mutually enclosed and form installation port 420 that is communicated with smoke collection chamber 400, and installation port 420 is used for installing air cabinet.

[0044] By adopting the cabinet of the embodiment of the utility model, when producing and assembling, only two side plates 100, a back plate 200 and a switch box 300 need to be assembled, the back plate 200 is arranged between the two side plates 100, the upper edge of the back plate 200 is connected with the two upper flaps 110, the lower flap 210 of the back plate 200 is connected with the lower edges of the two side plates 100, the switch box 300 is connected between the two side plates 100 and the extension 330 is inserted into the slot 130, thus the smoke collecting cavity 400 of the cabinet is formed, wherein the front flap 120 of the side plate 100 can be used as the front plate of the cabinet and can be connected with the switch box 300 and the lower flap 210 to form the smoke inlet 410, the upper edge of the side plate 100 can be used as the top plate of the cabinet and can be connected with the upper edge of the back plate 200 and the switch box 300 to form the mounting port 420 for mounting the air cabinet, thus the cabinet of the embodiment of the utility model does not need to be provided with additional front plate and top plate, only the two side plates 100, the back plate 200 and the switch box 300 need to be connected to form the cabinet of the range hood, the number of plate parts that need to be assembled when producing the cabinet is reduced, thus the structure of the cabinet is simpler and the assembly is more convenient, which is beneficial to improving the production efficiency of the cabinet.

[0045] It can be understood that in the above structure, the upper flap 110 and the front flap 120 of the side plate 100 can be integrally formed by stamping or bending when the side plate 100 is processed, and the lower flap 210 of the back plate 200 can be integrally formed by stamping or bending when the back plate 200 is processed, thus no additional processing procedure is needed, which is beneficial to improving the production and processing efficiency of the cabinet.

[0046] It can be understood that in the above structure, the slot 130 is arranged between the front flap 120 and the upper flap 110, which can position and limit the installation of the switch box 300, so that the installation of the switch box 300 is more convenient and fast, thus the assembly efficiency of the cabinet can be further improved.

[0047] Referring to Figures 1 to 5 And Figures 8 to 12 In some embodiments, the inner periphery of the slot 130 is provided with a first bending part 131, the first bending part 131 is bent towards the inside of the slot 130, the free end of the first bending part 131 is provided with a first abutting part 132 which is bent towards the back and the inside of the slot 130 in sequence, the extension 330 can abut against the first abutting part 132 and is arranged between the first bending part 131 to form a first welding gap 140.

[0048] In the above structure, the first abutting portion 132 can facilitate the adhesion between the extension portion 330 of the switch box 300 and the side plate 100, so that the connection between the switch box 300 and the side plate 100 is more compact. By reserving the first welding gap 140 between the extension portion 330 and the first bending portion 131, the extension portion 330 and the first bending portion 131 can be welded from the first welding gap 140, that is, the subsequent welding connection between the switch box 300 and the side plate 100 can be facilitated, so that the structure of the box body is more stable, and the production and processing are more convenient and fast.

[0049] With reference to Figures 1 to 5 And Figures 8 to 12 In some embodiments, the first abutting portion 132 is provided with at least one first positioning slot 331; the extension portion 330 is provided with a first positioning hole 133 corresponding to the first positioning slot 331, and a fastener is inserted into the first positioning hole 133 and the corresponding first positioning slot 331.

[0050] By adopting the above structure, the first positioning hole 133 and the first positioning slot 331 can facilitate the pre-positioning of the connection between the extension portion 330 and the side plate 100. During assembly, the extension portion 330 can be inserted into the slot 130 and abut against the first abutting portion 132, and at the same time, the first positioning hole 133 is aligned with the first positioning slot 331. The fastener is installed into the first positioning hole 133 and the first positioning slot 331, so as to realize the pre-positioning between the switch box 300 and the side plate 100. Therefore, the subsequent welding of the extension portion 330 and the first bending portion 131 from the first welding gap 140 can be facilitated, that is, the subsequent welding connection between the switch box 300 and the side plate 100 can be facilitated, so that the structure of the box body is more stable, and the production and processing are more convenient and fast.

[0051] It can be understood that the fastener can specifically be a rivet, a screw or the like, which is not limited in the present application.

[0052] With reference to Figures 1 to 6 In some embodiments, the lower bending plate 210 has a second bending portion 220 bent upward, the free end of the second bending portion 220 is provided with a second abutting portion 230 corresponding to the two front bending plates 120 one by one, and the second abutting portion 230 is formed by sequentially bending the second bending portion 220 backward and upward; the front bending plate 120 can abut against the front side surface of the second abutting portion 230 and be arranged to form a second welding gap 240 between the second abutting portion 230 and the second bending portion 220.

[0053] In the above structure, the setting of the second abutting portion 230 can facilitate the adhesion between the front flange 120 and the lower flange 210, so that the connection between the back plate 200 and the side plate 100 is more compact. In addition, by reserving the second welding gap 240 between the front flange 120 and the second bending portion 220, subsequent welding between the front flange 120 and the second bending portion 220 can be facilitated, that is, subsequent welding connection between the side plate 100 and the back plate 200 can be facilitated, so that the structure of the box body is more stable, and the production and processing are more convenient.

[0054] Referring to Figure 7 In some embodiments, the upper surface of the lower flange 210 is provided with a third oil guide groove 250 recessed downward, and the bottom wall of the third oil guide groove 250 is provided with at least one oil dripping hole 251, and the periphery of the oil dripping hole 251 is bent downward to form an oil guide surface, and the oil guide surface is a tapered surface that is large at the top and small at the bottom.

[0055] In the above structure, the lower flange 210 is located at the bottom of the smoke collecting cavity 400, and oil stains are likely to accumulate during use, so an oil cup for collecting oil stains is usually installed below the lower flange 210. By providing the upper surface of the lower flange 210 with a third oil guide groove 250 recessed downward, not only can the oil stains on the inner wall of the smoke collecting cavity 400 be guided into the third oil guide groove 250, but also the structure of the lower flange 210 can be enhanced. By providing the bottom wall of the third oil guide groove 250 with at least one oil dripping hole 251, the oil stains in the third oil guide groove 250 can be caused to drip downward to the outside of the smoke collecting cavity 400 through the oil dripping hole 251. By bending the periphery of the oil dripping hole 251 downward to form an oil guide surface, and the oil guide surface is a tapered surface that is large at the top and small at the bottom, the oil stains in the oil guide groove can be quickly guided into the oil dripping hole 251, and the oil stains can flow downward along the oil guide surface and drip to the outside of the smoke collecting cavity 400.

[0056] Referring to Figure 7 In some embodiments, a reinforcing plate 260 is installed in the smoke collecting cavity 400 and arranged upwardly from front to back, and the upper end of the reinforcing plate 260 is connected to the back plate 200, and the lower end of the reinforcing plate 260 is connected to the second bending portion 220.

[0057] By adopting the above structure, since the size of the back plate 200 in the left-right direction is large, deformation is more likely to occur, therefore, by providing the reinforcing plate 260 between the back plate 200 and the second bending portion 220, the structure of the back plate 200 can be enhanced, the structural strength of the back plate 200 can be improved, and the risk of deformation of the back plate 200 during use can be reduced.

[0058] Referring to Figure 7 In some embodiments, in order to further enhance the structure of the back plate 200, reinforcing ribs can be provided on the surface of the back plate 200.

[0059] In the prior art, in order to be able to install the switch, it is usually necessary to bend the front side edge of the top plate downward and then rearward to form a mounting cavity for mounting the switch, and further, it is necessary to provide sealing covers at both ends of the mounting cavity to prevent oil fume from entering the mounting cavity and causing pollution and corrosion to the switch, thus resulting in complicated assembly of the cabinet.

[0060] For this purpose, with reference to Figures 8 to 12 In some embodiments, the switch box 300 comprises a mounting plate 310 and a box body 320, two extension portions 330 are correspondingly provided at both ends of the mounting plate 310, the box body 320 is provided at the rear side of the mounting plate 310 and mutually enclosed with the mounting plate 310 to form a mounting cavity for mounting the switch, the mounting cavity is located between the two extension portions 330, and the left and right ends of the mounting cavity have openings 321; each front folding plate 120 has a downwardly bent baffle plate 150 at the side edge away from the corresponding side plate 100, the two baffle plates 150 correspondingly abut at both ends of the box body 320 and shield the corresponding openings 321, and at least one baffle plate 150 is provided with a wire passing hole 151 in communication with the mounting cavity.

[0061] In the above structure, the switch box 300 comprises a mounting plate 310 and a box body 320, when assembled, the extension portions 330 at both ends of the mounting plate 310 are inserted into the corresponding insertion slots 130, the box body 320 is arranged at the rear side of the mounting plate 310 to form a mounting cavity, and the left and right ends of the mounting cavity have openings 321, thereby facilitating the installation of the switch. By arranging a downwardly bent baffle plate 150 at the side edge of each front side plate 100 away from the corresponding side plate 100, after the box body 320 is mounted to the mounting plate 310, the baffle plate 150 can correspondingly abut at both ends of the box body 320 and shield the corresponding openings 321, thus it is not necessary to provide additional sealing covers, and the mounting cavity can be sealed by using the baffle plate 150 to shield the corresponding openings 321, preventing oil stains from entering the inside of the mounting cavity and causing pollution and corrosion to the switch, and compared with the prior art, the structure is simpler. The wire passing hole 151 provided on the baffle plate 150 can facilitate the leading out of the switch wire.

[0062] With reference to Figures 8 to 12 In some embodiments, the lower edge of the mounting plate 310 has a support plate 311 arranged rearwardly bent, the rear edge of the support plate 311 has a limiting plate 312 arranged upwardly bent, the box body 320 abuts against the support plate 311 and the limiting plate 312, and the support plate 311 and the limiting plate 312 have a first oil guiding groove 340 therebetween, the first oil guiding groove 340 extends to both ends of the smoke inlet 410 relative to the left and right ends of the box body 320 and is in communication with the smoke collecting cavity 400.

[0063] In the above structure, the support plate 311 is bent rearward from the lower edge of the mounting plate 310, thereby being capable of supporting the box body 320, and the limiting plate 312 is bent upward from the support plate 311, thereby being capable of limiting the box body 320 together with the mounting plate 310, avoiding the movement of the box body 320 in the front-rear direction. The limiting plate 312 is bent from the support plate 311 and is limited with the support plate 311 to form the first oil guide groove 340, and the oil stains on the surface of the box body 320 and the inner surface of the mounting plate 310 can flow downward into the first oil guide groove 340, and since the first oil guide groove 340 extends to the two ends of the smoke inlet 410 relative to the left and right ends of the box body 320 and is connected with the smoke collecting cavity 400, the oil stains can be guided to flow along the first oil guide groove 340 to the left and right ends into the smoke collecting cavity 400, and finally into the bottom of the smoke collecting cavity 400.

[0064] It can be understood that, referring to Figures 8 to 12 , the cross section of the first oil guide groove 340 is V-shaped, thereby achieving better oil stain guiding effect.

[0065] Referring to Figures 2 to 10 In some embodiments, the front surface of each front folding plate 120 is provided with a second oil guide groove 121 recessed rearward, and the lower edge of the second oil guide groove 121 is arranged downwardly inclined and extends to the edge of the smoke inlet 410.

[0066] In the above structure, by arranging the second oil guide groove 121 on the front surface of the front folding plate 120, the oil stains on the front surface of the front folding plate 120 can flow into the second oil guide groove 121, and by arranging the lower edge of the second oil guide groove 121 downwardly inclined and extending to the edge of the smoke inlet 410, the oil stains in the second oil guide groove 121 can flow downward along the lower edge of the second oil guide groove 121 toward the smoke inlet 410 after flowing to the lower edge of the second oil guide groove 121, and finally flow into the smoke collecting cavity 400 and flow downward along the inner wall of the smoke collecting cavity 400 to the bottom of the smoke collecting cavity 400.

[0067] An embodiment of the utility model also proposes a range hood, the range hood is provided with the box body of any one of the above embodiments.

[0068] In the range hood of the embodiment of the utility model, by arranging the box body of any one of the above embodiments, the box body is only assembled by two side plates 100, back plates 200 and switch boxes 300, therefore, in the production process of the range hood, the box body does not need to be additionally provided with front plates and top plates, and only needs to be surrounded by the two side plates 100, back plates 200 and switch boxes 300 to form the box body of the range hood, which not only reduces the number of plate pieces that need to be assembled in the production process, but also makes the assembly more convenient, and is beneficial to improving the production and assembly efficiency of the range hood.

[0069] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. A box, characterized in that The utility model relates to a kind of switch box, including: Two side plates (100) are oppositely arranged along left-right direction, the upper edge of the side plate (100) is bent to form upper flaps (110), the front edge of the side plate (100) is bent to form front flaps (120), the front flaps (120) are arranged with interval between the upper flaps (110) to form slot (130), two the upper flaps (110) are oppositely arranged, two the front flaps (120) are oppositely arranged; Back plate (200) is arranged between two the side plate (100), the upper edge of the back plate (200) is connected with two the upper flaps (110), the lower edge of the back plate (200) is bent to form lower flaps (210) forward, the both ends of the lower flaps (210) are connected with two the side plate (100) correspondingly; Switch box (300) is arranged between two the side plate (100), the both ends of the switch box (300) are provided with extension (330) extending into corresponding slot (130), the switch box (300) is opened for installing switch mounting cavity; Wherein, two the side plate (100), the back plate (200), the switch box (300) are mutually enclosed to form smoke collection cavity (400), two the front flaps (120), the lower flaps (210), the switch box (300) are mutually enclosed to form smoke inlet (410) being communicated with the smoke collection cavity (400), two the upper flaps (110), the upper edge of the back plate (200), the switch box (300) are mutually enclosed to form installation port (420) being communicated with the smoke collection cavity (400), the installation port (420) is used for installing air cabinet.

2. The case of claim 1, wherein, The inner periphery of the slot (130) is provided with a first bending part (131), the first bending part (131) is bent towards the inside of the slot (130), the free end of the first bending part (131) is provided with a first abutting portion (132) which is bent backward and inward in sequence with respect to the slot (130); The extension (330) can abut on the first abutting portion (132), and is arranged with interval between the first bending part (131) to form first welding gap (140).

3. The case of claim 2, wherein, The first abutting portion (132) is provided with at least one first positioning groove (331), the extension (330) is provided with a first positioning hole (133) corresponding to the first positioning groove (331), and a fastener is inserted into the first positioning hole (133) and the corresponding first positioning groove (331).

4. The case of claim 1, wherein, The lower flaps (210) have a second bending part (220) bent upward, the free end of the second bending part (220) is provided with a second abutting portion (230) corresponding to two the front flaps (120), and the second abutting portion (230) is formed by the second bending part (220) bent backward and upward in sequence. The front folding plate (120) can abut against the front side surface of the second abutting part (230) and is arranged spaced apart from the second bending part (220) to form a second welding gap (240).

5. The case of claim 4, wherein, The upper surface of the lower folding plate (210) is provided with a third oil guide groove (250) recessed downward, the bottom wall of the third oil guide groove (250) is provided with at least one oil dripping hole (251), the periphery of the oil dripping hole (251) is bent downward to form an oil guide surface, and the oil guide surface is a tapered surface with a large upper part and a small lower part.

6. The case of claim 4, wherein, The smoke collecting cavity (400) is provided with a reinforcing plate (260) arranged from front to back and inclined upward, the upper end of the reinforcing plate (260) is connected to the back plate (200), and the lower end of the reinforcing plate (260) is connected to the second bending part (220).

7. The case of claim 1, wherein, The switch box (300) comprises a mounting plate (310) and a box body (320), two extension parts (330) are provided at the two ends of the mounting plate (310), the box body (320) is provided at the rear side of the mounting plate (310) and surrounds the mounting plate (310) to form a mounting cavity for mounting switches, the mounting cavity is located between the two extension parts (330), and the left and right ends of the mounting cavity are provided with openings (321); Each side edge of the front folding plate (120) away from the corresponding side plate (100) is provided with a downwardly bent baffle (150), the two baffles (150) abut against and shield the two ends of the box body (320) and the corresponding openings (321), and at least one baffle (150) is provided with a wire passing hole (151) in communication with the mounting cavity.

8. The case of claim 7, wherein, The lower edge of the mounting plate (310) is provided with a rearwardly bent support plate (311), the rear edge of the support plate (311) is provided with an upwardly bent limiting plate (312), the box body (320) abuts against the support plate (311) and the limiting plate (312), the support plate (311) and the limiting plate (312) are provided with a first oil guide groove (340) therebetween, and the first oil guide groove (340) extends to the two ends of the smoke inlet (410) and is in communication with the smoke collecting cavity (400) with respect to the left and right ends of the box body (320).

9. The case of claim 1, wherein, The front surface of each front folding plate (120) is provided with a rearwardly recessed second oil guide groove (121), and the lower edge of the second oil guide groove (121) is inclined downward and extends to the edge of the smoke inlet (410).

10. A range hood characterized by The box body of any one of claims 1 to 9 is provided.

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