Smoke hood module and commercial range hood

Abstract

The utility model belongs to the technical field of range hoods, and discloses a smoke hood module and a commercial range hood. The smoke hood module comprises a smoke hood assembly, a filter screen and an oil blocking piece, the oil blocking piece and the smoke hood assembly are connected and define a smoke collecting cavity, the filter screen is arranged in the smoke collecting cavity, and at least one side edge of the oil blocking piece and the smoke hood assembly are arranged in a spaced mode to form an air inlet. The smoke hood module further comprises a spraying mechanism used for spraying a cleaning medium, the spraying mechanism comprises a supply assembly and at least two spraying pipes, each spraying pipe is communicated with a spraying opening, in all the spraying pipes, at least one spraying pipe can spray towards the filter screen, and the spraying opening is communicated with the spraying opening. At least one spraying pipe can spray towards the oil baffle piece; the supply assembly is communicated with the spraying pipe, and the supply assembly is used for supplying a cleaning medium to the spraying pipe. The smoke hood assembly can automatically clean the filter screen and the oil baffle piece, manual disassembly and cleaning are not needed, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a hood module and a commercial range hood. Background Art

[0002] The hood and purification all-in-one machine is a common commercial range hood, which is mainly composed of three parts: the hood module, the purification module and the fan module. The hood module includes an oil baffle and a front filter to separate the oil fume; the purification module is equipped with an electric field to purify the oil fume. Under the suction of the terminal fan, the oil fume first passes through the oil baffle and the filter, and then enters the purification module to filter out large particles of oil fume and particulate matter, and finally is discharged into the public flue through the fan.

[0003] As the front-end separation device of the hood purification machine, the oil baffle and filter will inevitably adhere to a large amount of oil stains. The chefs in commercial kitchens need to regularly remove and clean the oil baffles and filters to ensure their filtering performance. Cleaning is difficult, otherwise the purification effect of the machine will be greatly reduced, and as the oil stains increase, some of the oil stains may drip onto the stove or pot. Utility Model Content

[0004] The utility model aims to provide a hood module and a commercial range hood, which can automatically clean the oil baffle and the filter, and do not need to be manually removed for manual cleaning, so the use is convenient.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A hood module for a commercial range hood, the hood module comprising a hood assembly, a filter and an oil baffle, the oil baffle being connected to the hood assembly to form a smoke collecting chamber, the filter being arranged in the smoke collecting chamber, at least one side edge of the oil baffle being spaced from the hood assembly to form an air inlet, the hood module further comprising a spray mechanism for spraying a cleaning medium, the spray mechanism comprising:

[0007] At least two spray pipes, among all the spray pipes, at least one of the spray pipes can spray toward the filter screen, and at least one of the spray pipes can spray toward the oil baffle;

[0008] A supply assembly is connected to the spray pipe, and the supply assembly is used to supply cleaning medium to the spray pipe.

[0009] As an optional solution of the above-mentioned smoke hood module, the supply assembly includes a water supply pipe, and all the spray pipes are connected to the water supply pipe.

[0010] As an optional solution of the above-mentioned fume hood module, the supply assembly further includes:

[0011] A connecting pipe is connected to the adjacent spray pipes, and the water supply pipe is connected to one of the spray pipes or the connecting pipe.

[0012] As an optional solution of the above-mentioned smoke hood module, the supply component includes a water supply pipe and a steam generator, the steam generator is connected to the water supply pipe, at least one of the spray pipes is connected to the water supply pipe, and at least one of the spray pipes is connected to the steam generator.

[0013] As an optional solution of the above-mentioned fume hood module, the supply assembly further includes:

[0014] A connecting pipe, connecting two adjacent spray pipes, the water supply pipe is connected to one of the connecting pipes, and the steam generator is connected in series to at least one of the connecting pipes;

[0015] An on-off valve is provided between the connecting pipe and each of the spray pipes connected thereto;

[0016] Or, the supply component further comprises:

[0017] A connecting pipe connecting two adjacent spray pipes, wherein the water supply pipe is connected to one of the spray pipes, and the steam generator is connected in series to at least one of the connecting pipes;

[0018] An on-off valve is provided on the connecting pipe provided with the steam generator, and the on-off valve is located upstream of the steam generator.

[0019] As an optional solution of the above-mentioned fume hood module, the supply assembly further includes a heating assembly, and the heating assembly is used to heat the cleaning medium;

[0020] The heating assembly is arranged upstream of the water supply pipe;

[0021] Or, the heating component is arranged in the water supply pipe;

[0022] Or, the heating assembly is arranged between the water supply pipe and the spray pipe connected thereto;

[0023] Alternatively, the heating component is disposed in at least one of the spray pipes.

[0024] As an optional solution of the above-mentioned smoke hood module, the spray pipe connected to the steam generator is located below the spray pipe connected to the water supply pipe.

[0025] As an optional solution of the above-mentioned smoke hood module, the oil baffle is detachably connected to at least one of the spray pipes.

[0026] As an optional solution of the above-mentioned smoke hood module, a hanging part is provided on the side of the oil baffle member facing the filter, and the hanging part is hung and matched with the spray pipe.

[0027] A commercial range hood comprises a purification module and a fan module. The commercial range hood further comprises the above-mentioned fume hood module. The smoke collecting chamber, the purification module and the fan module are connected in sequence.

[0028] Beneficial effects of the utility model:

[0029] In the smoke hood module provided by the utility model, the spray mechanism includes a spray pipe and a spray port connected to the spray pipe. At least one spray pipe can spray toward the filter, and at least one spray pipe can spray toward the oil baffle. Thus, the cleaning medium provided by the supply assembly is sprayed onto the filter and the oil baffle, effectively cleaning the filter and the oil baffle, ensuring the filtering performance of the smoke hood module for oil smoke. Manual disassembly and cleaning are not required, and the use is convenient.

[0030] In the utility model, the spraying medium may be water, or part of the spraying pipes may spray water and part of the spraying pipes may spray steam, so as to improve the cleaning effect.

[0031] The commercial range hood provided by the utility model adopts the above-mentioned hood module, and there is no need to remove the oil retaining member and the filter screen for cleaning, so it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a commercial range hood provided by Embodiment 1 of the utility model;

[0033] Figure 2 It is a structural schematic diagram of a smoke hood assembly provided in Embodiment 1 of the present utility model;

[0034] Figure 3 It is a cross-sectional view of a commercial range hood provided by Embodiment 1 of the utility model;

[0035] Figure 4 It is a structural schematic diagram of the oil retaining member and the spray assembly provided in the first embodiment of the utility model;

[0036] Figure 5 This is a structural schematic diagram of a supply assembly provided in Embodiment 2 of the present utility model;

[0037] Figure 6 It is a structural schematic diagram of a smoke hood assembly provided in Embodiment 2 of the present utility model.

[0038] In the figure:

[0039] 100. Hood module; 101. Air inlet; 10. Hood assembly; 11. Side panel; 12. Back panel; 13. Bottom panel; 131. Oil collecting trough; 132. Oil drain port; 20. Filter; 30. Oil retaining member; 31. Hook; 40. Spray mechanism; 41. Water supply pipe; 42. Spray pipe; 43. Suspension member; 44. Nozzle; 441. First nozzle end; 442. Second nozzle end; 45. Connecting pipe; 46. Steam generator; 47. On / off valve; 200. Purification module; 300. Fan module. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] Embodiment 1

[0045] This embodiment provides a commercial smoking machine for filtering and purifying oil smoke. Figure 1 As shown, the commercial smoking machine includes a hood module 100, a purification module 200 and a fan module 300. The hood module 100, the purification module 200 and the fan module 300 are connected in sequence. Under the action of the fan module 300, the oil smoke first enters the hood module 100 for oil smoke separation, and then enters the purification module 200 for purification, filtering out large oil smoke and particulate matter, and finally is discharged into the public flue through the fan.

[0046] Combination Figure 1 and Figure 2 As shown, the hood module 100 includes a hood assembly 10, a filter 20 and an oil baffle 30. The hood assembly 10 has an inner cavity, one end of the hood assembly 10 is open, the oil baffle 30 is arranged in the opening, and forms a smoke collecting chamber with the hood assembly 10. The smoke collecting chamber is connected to the purification module 200. The filter 20 is arranged in the smoke collecting chamber, and at least one side edge of the oil baffle 30 is spaced from the inner wall of the smoke collecting chamber to form an air inlet 101. Under the action of the fan module 300, the oil smoke flows along the side surface of the oil baffle 30 away from the filter 20, and the oil baffle 30 plays the role of guiding the oil smoke and condensing the oil smoke; under the guidance of the oil baffle 30, the oil smoke enters the smoke collecting chamber through the air inlet 101, and is filtered by the filter 20. The filtered airflow enters the purification module 200 for purification.

[0047] After the oil smoke passes through the filter 20, oil stains are attached to the filter 20. As the oil stains on the filter 20 increase, the oil stains gradually gather to form oil droplets, which are likely to drip on the surface of the oil baffle 30 facing the filter 20 (hereinafter referred to as the back side of the oil baffle 30). The oil stains attached to the filter 20 will affect the oil smoke purification effect, and as the oil stains increase, some of the oil stains may drip onto the stove or pot.

[0048] In order to facilitate the cleaning of the filter 20 and the oil baffle 30 and ensure the oil fume purification effect, the hood module 100 also includes a spray mechanism 40 for spraying the cleaning medium. The spray mechanism 40 includes a supply assembly and at least two spray pipes 42. The supply assembly is connected to the spray pipe 42 and is used to supply the cleaning medium to the spray pipe 42. Each spray pipe 42 is connected to a spray port. At least one spray pipe 42 can spray toward the filter 20, and at least one spray pipe 42 can spray toward the oil baffle 30, so as to spray the cleaning medium onto the filter 20 and the oil baffle 30, effectively clean the filter 20 and the oil baffle 30, and ensure the oil fume filtering performance of the hood module 100. It does not require manual disassembly and cleaning, and is easy to use. By increasing the number of spray pipes 42, the overlapping area of ​​the spraying area of ​​different spray ports can be increased, which can not only improve the cleaning intensity and cleaning effect, but also reduce dead angles and achieve comprehensive cleaning.

[0049] Alternatively, the cleaning medium may be water, or a mixture of water and an oil cleaning agent.

[0050] The supply assembly includes a water supply pipe 41 , which is used to connect to a cleaning medium source. The water supply pipe 42 is connected to all the spray pipes 42 so as to transport the spray medium into the spray pipes 42 .

[0051] Optionally, the water supply pipe 41 can pass through the hood assembly 10 and communicate with the spray pipe 42. Exemplarily, the water supply pipe 41 can pass through the hood assembly 10 in the up-down direction or in the left-right direction to communicate with the spray pipe 42.

[0052] To facilitate the supply of cleaning medium to each spray pipe 42, the supply assembly also includes a connecting pipe 45, which connects two adjacent spray pipes 42. The water supply pipe 41 is connected to any spray pipe 42 or the connecting pipe 45, so that the cleaning medium provided by the water supply pipe 41 can be transported to any spray pipe 42 through the connecting pipe 45 and the spray pipe 42.

[0053] Optionally, the spray mechanism 40 further includes a heating component, which is used to heat the spray medium to improve the cleaning effect. The heating component can be arranged upstream of the water supply pipe 41, in the water supply pipe 41, between the water supply pipe 41 and the spray pipe 42, or in the spray pipe 42.

[0054] In this embodiment, two spray pipes 42 are provided, which are respectively located at opposite ends of the filter screen 20 and the oil retaining member 30. One connecting pipe 45 is provided, which connects the two end spray pipes; the heating assembly is located upstream of the water supply pipe 41, and the water supply pipe 41 is connected to the connecting pipe 45.

[0055] Optionally, both ends of the connecting pipe 45 are provided with on-off valves, and the water supply pipe 41 is located between the two on-off valves to achieve start and stop control of the spraying of each spray pipe 42 .

[0056] In other embodiments, the number of the spray pipes 42 may be three, four or more, and the specific number is adjusted according to actual needs.

[0057] In this embodiment, each spray pipe 42 can spray toward the filter screen 20 and the oil baffle 30 at the same time. Specifically, the spray port includes a first spray port and a second spray port. The first spray port is arranged toward the filter screen 20, and is used to spray a cleaning medium toward the filter screen 20 to clean the filter screen 20; the second spray port is arranged toward the oil baffle 30, and is used to spray a cleaning medium toward the oil baffle 30 to clean the oil baffle 30. By setting the first spray port and the second spray port, the filter screen 20 and the oil baffle 30 can be cleaned at the same time, shortening the cleaning time and improving the cleaning efficiency; the first spray port and the second spray port both provide the spray medium through the spray pipe 42, which is conducive to simplifying the pipeline structure and reducing costs.

[0058] In other embodiments, part of the spray pipe 42 may spray only toward the filter screen 20 , and the remaining part of the spray pipe 42 may spray only toward the oil retaining member 30 , so as to simplify the structure of the spray port.

[0059] To improve the cleaning effect, the spray mechanism 40 further includes a nozzle 44, which is connected to the spray pipe 42 and has a spray port. By connecting the nozzle 44 to the spray pipe 42, the cleaning medium in the spray pipe 42 can be sprayed at high pressure to increase the force of flushing the filter screen 20 and the oil retaining member 30, thereby making it easier for the oil stain to fall off.

[0060] like Figure 3 and Figure 4 As shown, the nozzle 44 includes a first nozzle end 441 and a second nozzle end 442. The first nozzle end 441 and the second nozzle end 442 are both connected to the spray pipe 42. The first nozzle end 441 is set toward the filter 20 to clean the filter 20, and the second nozzle end 442 is set toward the oil baffle 30 to clean the oil baffle 30.

[0061] The first nozzle end 441 is tilted upward to spray the cleaning medium toward the filter screen 20 , and the second nozzle end 442 is tilted downward to spray the cleaning medium toward the oil retaining member 30 .

[0062] In order to reduce the number of parts of the spray mechanism 40, the first nozzle end 441 and the second nozzle end 442 are an integrated structure. Figure 4 As shown, the nozzle 44 is roughly Y-shaped, and the nozzle 44 also includes a main pipe part, a first nozzle end 441 and a second nozzle end 442 are arranged at an angle and are both connected to the main pipe part, and the main pipe part is used to connect the spray pipe 42. The cleaning medium provided by the spray pipe 42 first enters the main pipe part, flows in the main pipe part, and is sprayed out through the first nozzle end 441 and the second nozzle end 442 respectively.

[0063] In order to prevent the nozzle 44 from being clogged by oil and thus affecting the cleaning effect of the spray mechanism 40, the nozzle 44 can be detachably sealed to the spray pipe 42. Figure 4 As shown, the main pipe part of the nozzle 44 is connected to the spray pipe 42 by means of threaded cooperation. Specifically, the main pipe part is provided with an external thread, and the spray pipe 42 is provided with a threaded hole. The main pipe part cooperates with the threaded hole to realize a detachable connection between the nozzle 44 and the spray pipe 42, wherein the threaded connection can also play a sealing role to prevent leakage of the cleaning medium.

[0064] In some embodiments, the first nozzle end 441 and the second nozzle end 442 may also be separately arranged, that is, the first nozzle end 441 and the second nozzle end 442 are each connected to the spray pipe 42. This arrangement can adjust the number and position of the first nozzle end 441 and the second nozzle end 442 separately according to actual spraying needs.

[0065] When the first nozzle end 441 and the second nozzle end 442 are separately provided, threaded holes are provided on the spray pipe 42 corresponding to the first nozzle end 441 and the second nozzle end 442 , and the first nozzle end 441 and the second nozzle end 442 cooperate with the corresponding threaded holes.

[0066] In order to increase the spraying area of ​​the nozzle 44 on the filter 20 and the oil retaining member 30, the nozzle 44 can be a fan-shaped nozzle or a spiral nozzle. The fan-shaped nozzle can produce a high-impact fan-shaped spray area, and the spray angle range can be between 0°-110°. The large spray area is conducive to eliminating cleaning dead corners and improving the cleaning effect. The spiral nozzle is a solid cone or hollow cone nozzle 44, and the spray angle range can be 50°-170°. The spiral nozzle has a compact structure and an open flow channel, which can minimize liquid blockage and increase the spray flow rate, which is conducive to improving the cleaning effect.

[0067] It should be noted here that the fan-shaped nozzle and the spiral nozzle are both common nozzles 44. In this embodiment, any fan-shaped nozzle or spiral nozzle in the prior art can be used, and the specific structures of the fan-shaped nozzle and the spiral nozzle are not introduced in this embodiment.

[0068] In some embodiments, a spray port may be directly opened on the spray pipe 42 without providing the nozzle 44 , and the cleaning medium in the spray pipe 42 may be sprayed out by the flow pressure of the spray medium in the spray pipe 42 to achieve the cleaning purpose.

[0069] In this embodiment, the spray pipe 42 is arranged between the filter screen 20 and the oil retaining member 30, the spray pipe 42 extends in the left-right direction, both ends of the spray pipe 42 are respectively connected to the smoke hood assembly 10, and the number of nozzles 44 is at least two, and at least two nozzles 44 are arranged at intervals along the length direction of the spray pipe 42. By providing at least two nozzles 44, it is possible to ensure that there are at least two first spray ports and at least two second spray ports, and the first spray ports and the second spray ports are arranged at intervals in the left-right direction, which can increase the spray range of the spray structure, and ensure that the filter screen 20 and the oil retaining member 30 can be washed at all positions in the left-right direction, so as to improve the cleaning effect.

[0070] Optionally, at least two nozzles 44 are evenly spaced apart along the length direction of the spray pipe 42 so that the cleaning medium is evenly distributed on the filter screen 20 and the oil retaining member 30 .

[0071] Optionally, along the length direction of the spray pipe 42, the spray ranges of two adjacent first nozzle ends 441 (or two second nozzle ends 442) partially overlap to prevent a cleaning dead angle.

[0072] Since the length of the spray pipe 42 is relatively large, in order to avoid deformation of the middle part of the spray pipe 42 and thus affecting the cleaning effect, Figure 2 As shown, the spray mechanism 40 also includes a suspension member 43, which extends approximately vertically. The top end of the suspension member 43 is connected to the smoke hood assembly 10, and the bottom end of the suspension member 43 is connected to the middle section of the spray pipe 42 to prevent the middle section of the spray pipe 42 from deforming downward under the action of gravity.

[0073] Optionally, the bottom end of the hanging member 43 may include a sleeve, and the sleeve is sleeved on the spray pipe 42 to support the middle section of the spray pipe 42 .

[0074] In this embodiment, three suspension members 43 are provided, and the three suspension members 43 are symmetrically arranged relative to the midline of the length direction of the spray pipe 42, so that the spray pipe 42 is evenly stressed and the middle section of the spray pipe 42 is ensured to extend horizontally. In other embodiments, the number of suspension members 43 can be set according to actual needs, and can be one, two, or four or more.

[0075] like Figure 3 As shown, in order to facilitate the collection of sewage after cleaning, the filter 20 and the oil baffle 30 are inclined in the front-to-back direction, and an oil collecting trough 131 is provided at the bottom of the smoke hood assembly 10, and the bottom ends of the filter 20 and the oil baffle 30 both extend above the oil collecting trough 131. After cleaning, the sewage moves along the surface of the filter 20 and the oil baffle 30 under the action of gravity, and the sewage on the filter 20 and the sewage on the oil baffle 30 will gather at their respective bottoms and flow into the oil collecting trough 131, and be discharged outward through the oil collecting trough 131. In this embodiment, there is no need to add an additional device for collecting and discharging sewage after cleaning, and the original oil collecting trough 131 in the smoke hood module 100 and the oil discharge port 132 connected to the oil collecting trough 131 are used to discharge sewage, which is conducive to simplifying the structure and reducing costs.

[0076] Optionally, the bottom ends of the filter screen 20 and the oil baffle 30 are both provided with drainage holes, and the drainage holes are located above the oil collecting tank 131 so that sewage can flow into the oil collecting tank 131 through the drainage holes.

[0077] Furthermore, the drainage hole on the filter screen 20 is located at the rear side of the drainage hole on the oil baffle 30 to prevent the sewage on the filter screen 20 from dripping onto the oil baffle 30 and causing secondary pollution to the oil baffle 30 .

[0078] In this embodiment, the smoke hood assembly 10 includes a top plate, a back plate 12, a bottom plate 13 and two side plates 11 arranged opposite to each other. The two side plates 11 are arranged in the left-right direction. The top plate, the back plate 12 and the side plates 11 are connected in pairs. The bottom plate 13 is connected to the back plate 12. An oil collecting tank 131 is formed on the bottom plate 13. Both ends of the spray pipe 42 are connected to the side plates 11.

[0079] Specifically, the filter 20 and the oil baffle 30 are both of a high front and low rear structure, and two spray pipes 42 are respectively arranged at the front and rear ends of the filter 20, so that the front spray pipe 42 sprays the cleaning medium from front to back, and the rear spray pipe 42 sprays the cleaning medium from back to front. The sprayed cleaning medium flows downward on the filter 20 and the oil baffle 30 under the action of gravity, ensuring that each position on the filter 20 and the oil baffle 30 can contact with the cleaning medium to improve the cleaning effect.

[0080] It can be understood that the angle between the first nozzle end 441 and the second nozzle end 442 varies with the distance between the filter screen 20 and the oil baffle 30. When the distance between the filter screen 20 and the oil baffle 30 is large, the angle between the first nozzle end 441 and the second nozzle end 442 increases accordingly to ensure that the first nozzle end 441 can spray toward the filter screen 20 and the second nozzle end 442 can spray toward the oil baffle 30; conversely, when the distance between the filter screen 20 and the oil baffle 30 is small, the angle between the first nozzle end 441 and the second nozzle end 442 decreases accordingly.

[0081] In order to simplify the structure of the hood module 100, the oil baffle 30 can be detachably connected to at least one spray pipe 42. That is, the spray pipe 42 is used as a supporting structure of the oil baffle 30, and the original supporting structure of the oil baffle 30 can be omitted, thereby reducing the number of parts and reducing the cost of the hood module 100. In addition, the oil baffle 30 and the spray pipe 42 are detachably connected, and the oil baffle 30 can be easily disassembled to clean the front of the oil baffle 30, or to accelerate the draining of the filter 20 after the oil baffle 30 is removed.

[0082] Optionally, the back of the oil baffle 30 is provided with hanging parts corresponding to the two spray pipes 42. The hanging parts can be hooks 31. The hooks 31 cooperate with the spray pipes 42 to fix the oil baffle 30. The structure is simple and the disassembly and assembly are convenient.

[0083] In this embodiment, the oil baffle 30 and the two spray pipes 42 can be detachably matched to improve the stability of the oil baffle 30 .

[0084] In some embodiments, the oil retaining member 30 may also be connected to the spray pipe 42 by means of snap connection or magnetic adsorption.

[0085] Embodiment 2

[0086] This embodiment provides a commercial smoking machine, which is different from the first embodiment in that at least one spray pipe 42 sprays water or a mixture of water and oil cleaning agent, and at least one spray pipe 42 can spray steam. The combined use of the two cleaning media can improve the cleaning effect.

[0087] Specifically, Figure 5 As shown, the supply assembly includes a water supply pipe 41 and a steam generator 46. The steam generator 46 is connected to the water supply pipe 41, and at least one spray pipe 42 is connected to the water supply pipe 41, and at least one spray pipe 42 is connected to the steam generator 46. When the supply assembly is started, the water provided by the water supply pipe 41 is divided into two parts, one part of which is directly passed into the spray pipe 42, and the other part of the water enters the steam generator 46, and high-temperature steam is formed by the steam generator 46. The high-temperature steam is passed into the spray pipe 42 to spray steam onto the filter 20 and / or the oil retaining member 30. The high temperature of the steam can better infiltrate the oil stains and improve the cleaning effect of the oil stains.

[0088] In order to ensure the supply of spray medium to each spray pipe 42 , the supply assembly also includes a connecting pipe 45 , which connects two adjacent spray pipes 42 . A steam generator 46 is connected in series to at least one connecting pipe 45 to provide steam to at least one spray pipe 42 through the steam generator 46 .

[0089] Optionally, the spray pipe 42 connected to the steam generator 46 is located upstream of the spray pipe 42 connected to the water supply pipe 41 to utilize the characteristics of water, mixed solution and steam to ensure sufficient contact between the cleaning medium and the filter 20 and the oil retaining member 30.

[0090] In this embodiment, two spray pipes 42 are provided, and the two spray pipes 42 are connected by a connecting pipe 45. The water supply pipe 41 is connected to the connecting pipe 45. A steam generator 46 is provided on the connecting pipe 45 to provide steam to the other spray pipe 42. The connecting position between the water supply pipe 41 and the connecting pipe 45 is located upstream of the steam generator 46.

[0091] Optionally, a spray pipe 42 connected to the water supply pipe 41 is arranged at the top of the filter 20, and the spray pipe 42 can spray toward the top of the filter 20 and the top of the oil baffle 30, and spray toward the rear side; another spray pipe 42 is arranged at the bottom of the filter 20, and the spray pipe 42 can spray steam toward the bottom of the filter 20 and the bottom of the oil baffle 30, and spray toward the front side. On the one hand, this arrangement can increase the spraying area, ensure comprehensive cleaning, and avoid cleaning dead corners; on the other hand, steam sprays from bottom to top, and the steam flows upward due to its own characteristics, and can fully contact with the filter 20 and the oil baffle 30, while water or mixed solution sprays from top to bottom, and can flow downward due to gravity, so as to fully contact with the filter 20 and the oil baffle 30, thereby improving the cleaning effect.

[0092] Optionally, the supply assembly further includes an on-off valve 47, and an on-off valve 47 is provided between each spray pipe 42 connected to the connecting pipe 45, and the on-off valve 47 is used to control the on-off of the connecting pipe 45 and the corresponding spray pipe. The connecting position of the water supply pipe 41 and the connecting pipe 45 is located between the two on-off valves 47, and the steam generator 46 is located downstream of the corresponding on-off valve 47. The on-off valve 47 can control the supply of water or mixed solution to the corresponding spray pipe 42, so that the opening and closing of each spray pipe 42 can be controlled, so as to adjust the spraying mode more flexibly.

[0093] Optionally, during cleaning, steam may be sprayed onto the filter 20 and the oil retaining member 30 to moisten and soften the oil stains with high temperature steam to improve the cleaning effect. In some embodiments, steam and water may be sprayed at intervals to improve the cleaning effect.

[0094] In some embodiments, Figure 6 As shown, the water supply pipe 41 can be connected to a spray pipe 42, the connecting pipe 45 connects the two spray pipes 42, and the connecting pipe 45 is provided with an on-off valve 47 and a steam generator 46, and the on-off valve 47 is located upstream of the steam generator 46. In this arrangement, the spray pipe 42 located at the top can continuously spray water or a mixed solution, and the spray pipe 42 located at the bottom can selectively spray steam through the control of the on-off valve 47.

[0095] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A hood module for a commercial range hood, the hood module comprising a hood assembly (10), a filter (20) and an oil baffle (30), the oil baffle (30) being connected to the hood assembly (10) to form a smoke collecting chamber, the filter (20) being arranged in the smoke collecting chamber, at least one side edge of the oil baffle (30) being spaced apart from the hood assembly (10) to form an air inlet (101), characterized in that: The fume hood module further comprises a spraying mechanism (40) for spraying a cleaning medium, wherein the spraying mechanism (40) comprises: at least two spray pipes (42), among all the spray pipes (42), at least one of the spray pipes (42) can spray toward the filter screen (20), and at least one of the spray pipes (42) can spray toward the oil retaining member (30); A supply component is communicated with the spray pipe (42), and the supply component is used to supply cleaning medium to the spray pipe (42).

2. The smoke hood module according to claim 1, characterized in that: The supply assembly comprises a water supply pipe (41), and all the spray pipes (42) are connected to the water supply pipe (41).

3. The smoke hood module according to claim 2, characterized in that: The supply assembly also includes: The connecting pipe (45) is connected to the adjacent spray pipes (42), and the water supply pipe (41) is connected to one of the spray pipes (42) or the connecting pipe (45).

4. The smoke hood module according to claim 1, characterized in that: The supply assembly comprises a water supply pipe (41) and a steam generator (46); the steam generator (46) is connected to the water supply pipe (41); at least one of the spray pipes (42) is connected to the water supply pipe (41); and at least one of the spray pipes (42) is connected to the steam generator (46).

5. The smoke hood module according to claim 4, characterized in that: The spray pipe (42) connected to the steam generator (46) is located below the spray pipe (42) connected to the water supply pipe (41).

6. The smoke hood module according to claim 4, characterized in that: The supply assembly also includes: a connecting pipe (45) connecting two adjacent spray pipes (42); the water supply pipe (41) is connected to one of the connecting pipes (45); and the steam generator (46) is connected in series to at least one of the connecting pipes (45); an on-off valve (47), wherein the on-off valve (47) is provided between the connecting pipe (45) and each of the spray pipes (42) connected thereto; Or, the supply component further comprises: a connecting pipe (45) connecting two adjacent spray pipes (42), the water supply pipe (41) connecting to one of the spray pipes (42), and the steam generator (46) being connected in series to at least one of the connecting pipes (45); An on-off valve (47) is provided on the connecting pipe (45) on which the steam generator (46) is provided, and the on-off valve (47) is located upstream of the steam generator (46).

7. The smoke hood module according to any one of claims 2 to 6, characterized in that: The supply assembly further comprises a heating assembly, and the heating assembly is used to heat the cleaning medium; The heating component is arranged upstream of the water supply pipe (41); Or, the heating component is arranged in the water supply pipe (41); Or, the heating component is arranged between the water supply pipe (41) and the spray pipe (42) connected thereto; Alternatively, the heating component is disposed in at least one of the spray pipes (42).

8. The fume hood module according to any one of claims 1 to 6, characterized in that: The oil blocking member (30) is detachably connected to at least one of the spray pipes (42).

9. The smoke hood module according to claim 8, characterized in that: A hanging piece is provided on the side of the oil retaining piece (30) facing the filter screen (20), and the hanging piece is hung and matched with the spray pipe (42).

10. A commercial range hood, comprising a purification module (200) and a fan module (300), characterized in that: The commercial range hood further comprises a hood module according to any one of claims 1 to 9, and the smoke collecting chamber, the purification module (200) and the fan module (300) are connected in sequence.

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